DEPT OF ELECTRICAL & ELECTRONIC ENGG
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Researcher
: Chan CC |
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List of Research Outputs |
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Chau K.T., Chan C.C. and Liu C., Overview of permanent magnet brushless drives for electric and hybrid electric vehicles, IEEE Transactions on Industrial Electronics. 2008, 55(6): 2246-2257. |
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Yu C., Chau K.T. and Chan C.C., Thermoelectric waste-heat energy recovery for hybrid electric vehicles, International Electric Vehicle Symposium. 2007, CD-ROM. |
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Zheng Y., Chan C.C., Li G., Lam E.Y.M. and Yang E.S., A study of femoral artery by twin drivers in Magnetic Resonance Interference Elastography, 29th International Conference of the IEEE Engineering in Medicine and Biology Society. 2007. |
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Researcher
: Chan CC |
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List of Research Outputs |
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Chau K.T., Chan C.C. and Liu C., Overview of permanent magnet brushless drives for electric and hybrid electric vehicles, IEEE Transactions on Industrial Electronics. 2008, 55(6): 2246-2257. |
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Yu C., Chau K.T. and Chan C.C., Thermoelectric waste-heat energy recovery for hybrid electric vehicles, International Electric Vehicle Symposium. 2007, CD-ROM. |
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Zheng Y., Chan C.C., Li G., Lam E.Y.M. and Yang E.S., A study of femoral artery by twin drivers in Magnetic Resonance Interference Elastography, 29th International Conference of the IEEE Engineering in Medicine and Biology Society. 2007. |
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Researcher
: Chan CL |
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List of Research Outputs |
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Li C., Zou X., Lai P.T., Xu J. and Chan C.L., Effects of Ti Content and Wet N2 Anneal on Ge MOS Capacitors with HfTiO Gate Dielectric, Microelectronics Reliability. 2008, 48: 526-530. |
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Researcher
: Chan FHY |
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Project Title: |
Biomedical signal processing using expert systems |
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Investigator(s): |
Chan FHY |
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Department: |
Electrical & Electronic Engg |
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Source(s) of Funding: |
University Research Committee / Committee on Research and Conference Grants - General Award |
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Start Date: |
05/1990 |
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Abstract: |
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To develop suitable expert systems for analysis and classification of biomedical signals. |
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Project Title: |
Development of an infrared sensing system for functional imaging of the brain - a noninvasive approach |
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Investigator(s): |
Chan FHY, Chan JCK, Poon PWF |
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Department: |
Electrical & Electronic Engg |
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Source(s) of Funding: |
Biotechnology Research Institute Research Grants |
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Start Date: |
01/1993 |
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Abstract: |
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To develop an infrared sensing system for functional imaging of the brain. |
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Project Title: |
Development of an infrared sensing system for functional imaging of the brain - a noninvasive approach |
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Investigator(s): |
Chan FHY, Chan JCK, Poon PWF |
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Department: |
Electrical & Electronic Engg |
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Source(s) of Funding: |
Biotechnology Research Institute Research Grants |
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Start Date: |
01/1993 |
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Abstract: |
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To develop an infrared sensing system for functional imaging of the brain. |
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Project Title: |
A symbolic signal processing approach to genomic sequence analysis |
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Investigator(s): |
Chan FHY, Chang C, Xu R |
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Department: |
Electrical & Electronic Engg |
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Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
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Start Date: |
09/2003 |
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Abstract: |
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To develop a general method for optimal higher order spectral analysis of symbolic signals, and apply it to genomic sequence analysis. Specific aims are to develop a general optimal mapping methodology for both nonlinear and linear analyses; develop practical higher order spectra analytical algorithms with optimal mapping for symbolic signals. Emphasis will be placed on bi-spectral analysis, tri-spectral analysis, cross-spectral analysis, and the various corresponding integrated forms; apply the developed algorithms to DNA sequence and protein sequence analysis. |
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List of Research Outputs |
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Ren J., Fung P.C.W., Chang C., Shen G.G., Chan F.H.Y., Liu K.J. and Shen J., A comparative ESR study on blood and tissue nitric oxide concentration during renal ischemia-reperfusion injury , Applied Magnetic Resonance. Springer-Verlag, 2007, 32: 243-255. |
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Project Title: |
Slotted aloha with erasure coding in wireless networks |
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Investigator(s): |
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Department: |
Electrical & Electronic Engg |
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Source(s) of Funding: |
Seed Funding Programme for Basic Research |
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Start Date: |
02/2002 |
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Abstract: |
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To employ erasure code for further improving the performance of slotted Aloha. |
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Project Title: |
A study of Inpainting techniques and applications in dynamic image-based representations |
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Investigator(s): |
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Department: |
Electrical & Electronic Engg |
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Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
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Start Date: |
09/2005 |
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Abstract: |
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To main objective of this project is to study "inpainting" of IBR that it helps to solve important problems such as disocclusion in rendering, concealment of transmission errors and object removal in Image-based representations. We shall base our investigation on the geometric partial differential equation approach, which has been very successful in digital images. |
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Project Title: |
A study of the compression and modeling issues in dynamic shadow fields for augmented reality applications |
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Investigator(s): |
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Department: |
Electrical & Electronic Engg |
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Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
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Start Date: |
09/2006 |
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Abstract: |
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(1) Purpose of proposed investigation: Image-based rendering (IBR) is an emerging technology for rendering photo-realistic views of scenes from a collection of densely sampled images or videos. It provides a new framework for developing revolutionary virtual reality and immersive viewing systems. While there has been considerable progress recently in the capturing, storage and transmission of image-based representations, IBR usually supports limited user interaction such as change of view-points and limited amount of re-lighting. This has limited its applications in augmented reality systems, where real and synthetic objects are mixed together with different illuminations. (2) Key issues of problems being addressed: This proposal studies a recently developed image-based representation called shadow fields for dynamic scenes, which allows real-time relighting and soft-shadow computation of scenes with fairly accurate geometric models. In principle, pre-computed shadow fields are applicable to time-varying light sources such as video textures and objects with time-varying geometric models. However, they usually pose significant storage and capturing problems in practice, which limit the complexity of the scenes that can be handled. This motivates us to study the two key problems of dynamic shadow fields for augmented reality systems, namely: 1) the compression of the time-varying environment maps and geometric models of the objects and 2) the capturing of geometric models of real world dynamic objects. (3) Possible outcome of the research project: Objective 1: Compression of the time-varying shadow fields. We shall study and develop efficient algorithms for the compression of the shadow fields in forms of time-varying environment and the dynamic geometric models. Due to the similarity between the shadow fields and panoramic videos, we shall base our development on our previous compression algorithm for panoramic video with appropriate modifications to take into account the spatial correlation and other processing requirements, such as the random access problem. Objective 2: Compression and capturing of geometric models of real world dynamic objects. A pilot study on the difficult problem of capturing dynamic 3D models using a multi-camera array will be conducted. We shall focus on vision-based techniques such as the level set methods and the profile of image objects. Though this study, we hope to evaluate the accuracy of this method and its effects on relighting real-world videos using shadow fields. For the compression of dynamic 3D model, we shall focus on the random access problem, which has not been fully addressed in current 3D mesh compression algorithms. In particular, we shall study the use of spherical splines to speed up the evaluation process and storage. (4) Long-term impact, relevance, significance and value: Through this pilot study, we hope to develop a framework and a software system for augmented reality systems using IBR techniques. The long-term objective is to develop photo-realistic and interactive augmented reality systems with low complexity. The findings will find important applications in advertisement, presentation, computer games, etc. |
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List of Research Outputs |
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Chan S.C., Shum H.Y. and Ng K.T., Image-based rendering and synthesis: technological advances and challenges, IEEE Signal Processing Magazine. 2007, vo. 24, no. 6: pp. 22-33. |
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Chan S.C. and Chen H., Uniform concentric circular arrays with frequency invariant characteristics – theory, design, adaptive beamforming and DOA estimation, IEEE Trans. Signal Processing. IEEE, 2007, vol. 55, no. 1: pp. 165-177. |
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Chen H., Chan S.C. and Ho K.L., Adaptive beamforming using frequency invariant uniform concentric circular arrays, IEEE Transactions on Circuits and Systems I. 2007, vol. 54, no. 9: pp. 1938-1949. |
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Tsui K.M., Chan S.C. and Kwan H.K., A New Method for Designing Causal Stable IIR Variable Fractional Delay Digital Filters , IEEE Trans. Circuits for Systems II. 2007, vol. 54, no. 11: pp. 999-1003. |
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Yin S., Chan S.C. and Tsui K.M., On the design of nearly-PR and PR FIR cosine modulated filter banks having approximate cosine-rolloff characteristics, IEEE Trans. Circuits for Systems II. 2008, vol. 55, no. 6: pp. 571-575. |
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Zhang Z., Chan S.C. and Tsui K.M., A recursive frequency estimator using linear prediction and a Kalman-filter-based iterative algorithm, IEEE Transaction on Circuits and Systems II. 2008, vol. 56, no. 6: pp. 576-580. |
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Researcher
: Chan SW |
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List of Research Outputs |
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Chan S.W. and Chau K.T., A switched-capacitor boost-multilevel inverter using partial charging, IEEE Transactions on Circuits and Systems II. 2007, 54(12): 1145-1149. |
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Researcher
: Chan WS |
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List of Research Outputs |
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Chan W.S., Lam E.Y.M., Ng K.P. and Mak Y.H.G., Super-resolution reconstruction in a computational compound-eye imaging system, Multidimensional Systems and Signal Processing. 2007, 18: 83-101. |
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Researcher
: Chang C |
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Project Title: |
Development of a sparse component analysis technique for biomedical signal processing |
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Investigator(s): |
Chang C, Hung YS, Fung PCW |
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Department: |
Electrical & Electronic Engg |
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Source(s) of Funding: |
Small Project Funding |
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Start Date: |
01/2006 |
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Abstract: |
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We aim to develop a blind source separation method robust and suitable for the analysis of biomedical signals. Biomedical signals are complex due to their nature of generation and thus cannot satisfy the assumptions of independece for the blind source separation problem. Many biomedical signals under study, such as the free radical Electron Paramagnetic Resonance (EPR) spectra, are far from independent, so traditional approaches exploiting the independence among the source signals cannot give satisfactory results even in high signal-to-noise ratio scenario. Through relaxing the assumption of independence among the source signals and exploiting their sparseness, recently we proposed a sparse component analysis approach to the blind source separation problem and got very promising results on the decomposition of superimposed free radical EPR spectra. In this project we plan to further develop this technique and investigate its applications in biomedical signal analysis.The following areas will be addressed for further development of the sparse component analysis technique:(1) General theory on the sparse component analysis approach to blind source separation: We'll extend our previous results on the simple case of two sources to the general case of multiple (more than two) sources.(2) Algorithm for sparse component analysis of mixtures from multiple sources: The sparse component analysis approach requires a search for the local minima of an objective function. For the simple case of two sources, the search is in one dimensional space, and thus can be implemented directly. For the general case of multiple sources, a search in high dimensional space is required, and a direct search is too expensive to be applicable. Therefore we need to develop numerical algorithms to solve the associated multivariate optimization problem.(3) Sparse component analysis for mixtures of non-sparse source signals: Sometimes the source signals are not sparse enough for the effective application of the sparse component analysis approach. We'll investigate a preprocessing procedure which transforms the non-sparse signals to another domain to obtain the sparse counterparts of the signals. With a sparse representation of the source signals, the sparse component analysis can then be applied for the blind source separation problem. This approach may result in the relaxation of the assumption of pairwise independence between the source signals.As an application of the proposed method, we'll apply the developed method to the analysis of multi-channel Electroencephalogram (EEG) signals obtained in our studies for cognitive neural science. |
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List of Research Outputs |
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Chang C., Editorial Advisory Board, The Open Spectroscopy Journal. Bentham, 2007. |
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Chang
C., Ding Z., Hung Y.S. and Fung P.C.W., Fast network component
analysis (FastNCA) for gene regulatory network reconstruction from microarray
data, Bioinformatics. |
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Chang
C., Ding Z., Hung Y.S. and Fung P.C.W., Fast network component
analysis for gene regulation networks, IEEE International Workshop on
Machine Learning for Signal Processing. |
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Chang C., Fung P.C.W. and Hung Y.S., Improved Gene Prediction by Resampling-based Spectral Analysis of DNA Sequence, 5th International Conference on Information Technology and Application in Biomedicine (ITAB 2008). 2008. |
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Liu H., Hu Y., Chang C. and Luk K.D.K., Fast extraction of somatosensory evoked potential based on second order blind identification, IEEE EMBS Annual Conference (EMBS2007). 2007. |
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Ren J., Fung P.C.W., Chang C., Shen G.G., Chan F.H.Y., Liu K.J. and Shen J., A comparative ESR study on blood and tissue nitric oxide concentration during renal ischemia-reperfusion injury , Applied Magnetic Resonance. Springer-Verlag, 2007, 32: 243-255. |
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Xiang L., Ye Z., Xu X., Chang C., Xu W. and Hung Y.S., Direction of arrival estimation for uniform circular array based on fourth-order cumulants in the presence of unknown mutual coupling, IET Microwaves, Antennas & Propagation. 2008, 2: 281-287. |
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Xu W.,
Chang C., Hung Y.S. and Fung P.C.W., Asymptotic Properties of
Order Statistics Correlation Coefficient in the |
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Xu W., Chang C., Hung Y.S., Kwan S.K. and Fung P.C.W., Order statistics correlation coefficient as a novel association measurement with applications to biosignal analysis, IEEE Transactions on Signal Processing. IEEE, 2007, 55: 5552-5563. |
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Xu W., Chang C., Hung Y.S. and Fung P.C.W., Quantifying organization during atrial fibrillation based on order statistics correlation coefficient, ITAB 2008/ISSSBHE2008. |
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Yao J.C., Chang C., Salmi M.L., Hung Y.S., Loraine A. and Roux S.J.,
Genome-scale cluster analysis of replicated microarrays using shrinkage
correlation coefficient, BMC Bioinformatics. |
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Researcher
: Chau KT |
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Project Title: |
Design and control of a novel standing-wave ultrasonic motor |
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Investigator(s): |
Chau KT |
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Department: |
Electrical & Electronic Engg |
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Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
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Start Date: |
12/2003 |
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Abstract: |
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To develop a novel high-torque SWUM topology for position control of mechatronic systems; to develop an effective micro-stepping control scheme for the proposed SWUM; to implement the whole SWUM system by using low-cost digital hardware; to evaluate the application of the whole system with the justification of motor cost and control complexity. |
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Project Title: |
Chaotification of advanced motor drives and its application |
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Investigator(s): |
Chau KT |
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Department: |
Electrical & Electronic Engg |
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Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
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Start Date: |
01/2005 |
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Abstract: |
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To develop new control means to on-line chaotify advanced motor drives operating at the desired motion boundaries and even types of chaos; to develop new critieria of motor design and hence the design equations for chaotification of advanced motor drives; to implement the proposed controllable chaotic motor drives, and hence to assess their practical application to industrial mixing. |
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Project Title: |
Development of a novel electric machine for wind power generation |
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Investigator(s): |
Chau KT |
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Department: |
Electrical & Electronic Engg |
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Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
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Start Date: |
01/2006 |
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Abstract: |
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The main objectives of this project are to: (1) design a novel BDF-DSPM machine which can offer high power density (over 200 W/kg), direct drive, high reliability and maintenance-free operation; (2) develop a new control scheme to adjust the dc field current so that the proposed machine can operate at wide speed range (up to 3 times the base speed) with good power quality; and (3) develop a new optimization scheme to on-line tune the dc field current so as to achieve the optimal efficiency map (over 85% for most wind speeds). |
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Project Title: |
A novel ultracapacitor-based integrated-starter-generator system for automotive engines |
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Investigator(s): |
Chau KT |
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Department: |
Electrical & Electronic Engg |
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Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
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Start Date: |
09/2006 |
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Abstract: |
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1. In December 2004, our Government
announced to set up R&D centers for four strategic areas which will act
as focal points for |
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List of Research Outputs |
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Chan S.W. and Chau K.T., A switched-capacitor boost-multilevel inverter using partial charging, IEEE Transactions on Circuits and Systems II. 2007, 54(12): 1145-1149. |
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Chau K.T., Gong Y. and Jiang J., A hybrid dual-memory motor, IEEE International Magnetics Conference. 2008, CD-ROM. |
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Chau K.T., Associate Editor, International Journal of Electrical Energy Systems. Serials Publications, 2008. |
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Chau K.T., Associate Editor, Journal of Electromagnetic Waves and Applications. Periodicals Service Company, 2008. |
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Chau
K.T., Chang Jiang Chair Professor Award 2007,
Ministry of Education, |
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Chau
K.T., National Overseas Young Researcher
Award 2007, National Natural Science Foundation of |
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Chau K.T., Chan C.C. and Liu C., Overview of permanent magnet brushless drives for electric and hybrid electric vehicles, IEEE Transactions on Industrial Electronics. 2008, 55(6): 2246-2257. |
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Chau K.T., Zhang D., Jiang J. and Jian L., Transient analysis of coaxial magnetic gears using finite element co-modeling, Magnetism and Materials Conference. 2007, CD-ROM. |
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Chau
K.T., Zhang
D., Jiang J. and Jian L., Transient analysis of
coaxial magnetic gears using finite element comodeling, AIP Journal of
Applied Physics. 2008, 103(7): |
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Chung S.W. and Chau K.T., A new compliance control approach for traveling-wave ultrasonic motors, IEEE Transactions on Industrial Electronics. 2008, 55(1): 302-311. |
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Fan Y. and Chau K.T., Design, modeling, and analysis of a brushless doubly fed doubly salient machine for electric vehicles, IEEE Transactions on Industry Applications. 2008, 44(3): 727-734. |
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Jian L., Chau K.T., Zhang D., Jiang J. and Wang Z., A magnetic-geared outer-rotor permanent-magnet brushless machine for wind power generation, IEEE Industry Applications Society Annual Meeting. 2007, CD-ROM. |
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Jian L. and Chau K.T., An integrated halbach-magnetic-geared permanent-magnet motor, Magnetism and Materials Conference. 2007, CD-ROM. |
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Liu C. and Chau K.T., Comparison of stator-permanent-magnet brushless machines, IEEE International Magnetics Conference. 2008, CD-ROM. |
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Liu C., Chau K.T., Jiang J., Liu X. and Wang Z., Design and control of a doubly-excited permanent-magnet brushless integrated-starter-generator for hybrid electric vehicles, IEEE Industry Applications Society Annual Meeting. 2007, CD-ROM. |
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Liu C., Chau K.T., Jiang J. and Jian L., Design of a new outer-rotor permanent magnet hybrid machine for wind power generation, IEEE Transactions on Magnetics. 2008, 44(6): 1494-1497. |
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Liu X., Chau K.T., Jiang J. and Jian L., Analysis of concentric magnetic gears using three dimensional scalar magnetic potential finite element method, IEEE International Magnetics Conference. 2008, CD-ROM. |
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Niu S., Chau K.T. and Jiang J., Analysis of eddy-current loss in a double-stator cup-rotor PM machine, IEEE International Magnetics Conference. 2008, CD-ROM. |
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Niu S., Chau K.T., Zhang D., Jiang J. and Wang Z., Design and control of a doubly-stator permanent-magnet motor drive for electric vehicles, IEEE Industry Applications Society Annual Meeting. 2007, CD-ROM. |
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Niu S., Chau K.T., Zhang D. and Jiang J., Transient analysis of a double-stator permanent magnet brushless motor drive with scalar control, Magnetism and Materials Conference. 2007, CD-ROM. |
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Wang
J., Chau K.T., Jiang J. and Yu C., Design and analysis of a
transverse flux permanent magnet machine using three dimensional scalar
magnetic potential finite element method, AIP Journal of Applied Physics.
2008, 103(7): |
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Wang J., Chau K.T. and Jiang J., Design and analysis of a transverse flux permanent magnet machine using three dimensional scalar magnetic potential finite element method, Magnetism and Materials Conference. 2007, CD-ROM. |
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Wang Z. and Chau K.T., Anti-control of chaos of a permanent magnet dc motor system for vibratory compactors, Chaos, Solitons and Fractals. 2008, 36(3): 694-708. |
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Wang Z. and Chau K.T., Chaoization of permanent magnet synchronous motors using stator flux regulation, IEEE International Magnetics Conference. 2008, CD-ROM. |
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Wang Z. and Chau K.T., Design and analysis of a chaotic PWM inverter for electric vehicles, IEEE Industry Applications Society Annual Meeting. 2007, CD-ROM. |
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Ye S. and Chau K.T., Chaoization of DC motors for industrial mixing, IEEE Transactions on Industrial Electronics. 2007, 54(4): 2024-2032. |
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Yu
C., Chau K.T., Liu X. and Jiang J., A flux-mnemonic permanent
magnet brushless motor for electric vehicles, AIP Journal of Applied
Physics. 2008, 103(7): |
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Yu C., Chau K.T., Liu X. and Jiang J., A flux-mnemonic permanent magnet brushless motor for electric vehicles, Magnetism and Materials Conference. 2007, CD-ROM. |
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Yu C., Chau K.T. and Chan C.C., Thermoelectric waste-heat energy recovery for hybrid electric vehicles, International Electric Vehicle Symposium. 2007, CD-ROM. |
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Zhu
X., Chau K.T., Cheng M. and Yu C., Design and control of a
flux-controllable stator-PM brushless motor drive, AIP Journal of Applied
Physics. 2008, 103(7): |
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Zhu X., Chau K.T. and Cheng M., Design and control of a flux-controllable stator-PM brushless motor drive, Magnetism and Materials Conference. 2007, CD-ROM. |
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Researcher
: Chen H |
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List of Research Outputs |
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Chan S.C. and Chen H., Uniform concentric circular arrays with frequency invariant characteristics – theory, design, adaptive beamforming and DOA estimation, IEEE Trans. Signal Processing. IEEE, 2007, vol. 55, no. 1: pp. 165-177. |
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Chen H., Chan S.C. and Ho K.L., Adaptive beamforming using frequency invariant uniform concentric circular arrays, IEEE Transactions on Circuits and Systems I. 2007, vol. 54, no. 9: pp. 1938-1949. |
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Researcher
: Chen J |
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List of Research Outputs |
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Chen J., Wu Y.C. and Ng T.S., Best paper award, the 7th International Symposium on Communications and Information Technologies (ISCIT) 2007. 2007. |
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Chen J., Wu Y.C. and Ng T.S., Optimal CFO and Channel Estimation for OFDMA Uplink Using Importance Sampling, Proceedings, Symposium on Communications and Information Technologies (ISCIT 2007), Sydney, Oct.16 - 19, 2007 (This paper received the Best Conference Paper Award.). 2007. |
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Chen J., Wu Y.C. and Ng T.S., Optimal CFO and Channel Estimation for OFDMA Uplink Using Importance Sampling, the 7th International Symposium on Communications and Information Technologies (ISCIT) 2007. 977-982. |
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Chen J., Wu Y.C. and Ng T.S., Optimal Joint CFO and Channel Estimation for Multiuser MIMO-OFDM Systems, IEEE ICC 2008. |
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Chen J.,
Wu Y.C. and Ng T.S., Optimal Joint CFO and Channel
Estimation for Multiuser MIMO-OFDM Systems, Proceedings, International
Conference on Communications (ICC 2008), |
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Chen J., Wu Y.C. and Ng T.S., Optimal Joint CFO and Channel Estimation in Quasi-Synchronized OFDM Systems, Proceedings, IEEE Globecom 2007, Washington DC, 26-30 Nov, 2007. |
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Chen J., Wu Y.C. and Ng T.S., Optimal joint CFO and channel estimation in quasi-synchronized OFDM systems, IEEE Globecom 2007. 2816-2820. |
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Chen J., Wu Y.C., Ma S. and Ng T.S., Training Design for Joint CFO and Channel Estimation in Multiuser MIMO OFDM System, Proceedings, IEEE Globecom 2007, Washington DC, 26-30 Nov, 2007. |
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Chen J., Wu Y.C., Ma S. and Ng T.S., Training design for joint CFO and channel estimation in multiuser MIMO OFDM system, IEEE Globecom 2007. 3008-3012. |
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Researcher
: Chen J |
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List of Research Outputs |
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Chen J., Wu Y.C. and Ng T.S., Best paper award, the 7th International Symposium on Communications and Information Technologies (ISCIT) 2007. 2007. |
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Chen J., Wu Y.C. and Ng T.S., Optimal CFO and Channel Estimation for OFDMA Uplink Using Importance Sampling, Proceedings, Symposium on Communications and Information Technologies (ISCIT 2007), Sydney, Oct.16 - 19, 2007 (This paper received the Best Conference Paper Award.). 2007. |
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Chen J., Wu Y.C. and Ng T.S., Optimal CFO and Channel Estimation for OFDMA Uplink Using Importance Sampling, the 7th International Symposium on Communications and Information Technologies (ISCIT) 2007. 977-982. |
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Chen J., Wu Y.C. and Ng T.S., Optimal Joint CFO and Channel Estimation for Multiuser MIMO-OFDM Systems, IEEE ICC 2008. |
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Chen J.,
Wu Y.C. and Ng T.S., Optimal Joint CFO and Channel
Estimation for Multiuser MIMO-OFDM Systems, Proceedings, International
Conference on Communications (ICC 2008), |
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Chen J., Wu Y.C. and Ng T.S., Optimal Joint CFO and Channel Estimation in Quasi-Synchronized OFDM Systems, Proceedings, IEEE Globecom 2007, Washington DC, 26-30 Nov, 2007. |
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Chen J., Wu Y.C. and Ng T.S., Optimal joint CFO and channel estimation in quasi-synchronized OFDM systems, IEEE Globecom 2007. 2816-2820. |
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Chen J., Wu Y.C., Ma S. and Ng T.S., Training Design for Joint CFO and Channel Estimation in Multiuser MIMO OFDM System, Proceedings, IEEE Globecom 2007, Washington DC, 26-30 Nov, 2007. |
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Chen J., Wu Y.C., Ma S. and Ng T.S., Training design for joint CFO and channel estimation in multiuser MIMO OFDM system, IEEE Globecom 2007. 3008-3012. |
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Researcher
: Chen Q |
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List of Research Outputs |
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Chen Q. and Wong N., An efficient stochastic integral equation method for modeling the influence of conductor surface roughness on interconnect ohmic loss, Proc. Midwest Symp. Circuits and Systems (MWSCAS). 2007, 1417-1420. |
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Chen Q. and Wong N., Efficient numerical modeling of random rough surface effects for interconnect internal impedance extraction, Proc. 13th Asia and South Pacific Design Automation Conference ASP-DAC. 2008, 152-157. |
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Researcher
: Chen X |
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List of Research Outputs |
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Chen X., Choy W.C.H. and He S., Efficient Optical Modeling of Spontaneous Emission in a Cylindrically Layered nanostructure, OSA Opt. Express. 2007, 15: 10356-10361. |
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Chen X., He S. and Choy W.C.H., Highly efficiency and tunable fluorescence of a nano-fluorophore in silica/metal dual shells with plasmonic resonance, Journal Appl. Phys.. 2008, 103: 024301. |
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Chen X., Choy W.C.H., Liang C., Wai P.K.A. and He S., Modifications of the Exciton Lifetime and Internal Quantum Efficiency for Organic Light-Emitting Devices with a Weak/Strong Microcavity, Applied Physics Letters. 2007, 91: 221112-221114. |
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Choy
W.C.H., Zheng H.M., Chen X.
and He S., High-efficiency blue fluorescent organic light emitting devices
based on double emission layers, SPIE Optics + Photonics, 2008. |
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Choy
W.C.H., Chen X., He S. and
Chui P.C., Improved Spontaneous
Emission of a nano-fluorophore in metal nanoshells with plasmonic resonance, Particle
2008 Conference, |
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List of Research Outputs |
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Cheng K.Y., Wong Lui K.S., Wu Y.C. and Tam V.W.L., A Greedy Distributed Time Synchronization Algorithm for Wireless Sensor Networks, IEEE ICC 2008. |
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Ma K.T., Cheng K.Y., Wong Lui K.S. and Tam V.W.L., Data Centric Storage with Diffuse Caching in Sensor Networks, Wireless Communications and Mobile Computing Journal. Wiley, 2007, 9: 347 - 356. |
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Researcher
: Cheng M |
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List of Research Outputs |
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Zhu
X., Chau K.T., Cheng M. and Yu C., Design and control of a
flux-controllable stator-PM brushless motor drive, AIP Journal of Applied
Physics. 2008, 103(7): |
|
Zhu X., Chau K.T. and Cheng M., Design and control of a flux-controllable stator-PM brushless motor drive, Magnetism and Materials Conference. 2007, CD-ROM. |
|
Researcher
: Chesi G |
|
List of Research Outputs |
|
Chesi G. and Hung Y.S., Analysis and synthesis of nonlinear systems with uncertain initial conditions, IEEE Transactions on Automatic Control. 2008, 53: 1262-1267. |
|
Chesi G., Establishing tightness in robust H-infinity analysis via homogeneous parameter-dependent Lyapunov functions, Automatica. 2007, 43: 1992-1995. |
|
Chesi G. and Hung Y.S., Global path-planning for constrained and optimal visual servoing, IEEE Transactions on Robotics. 2007, 23, No. 5: 1050-1060. |
|
Chesi G. and Hung Y.S., Image noise induced errors in camera positioning, IEEE Transactions on Pattern Analysis and Machine Intelligence. 2007, 29: 1476-1480. |
|
Chesi G., On the solution of systems of polynomial equations via LMIs, Int. Conf. on Mathematical Problems in Engineering, Aerospace, and Sciences. 2008. |
|
Chesi G., Optimal representation matrices for solving polynomial systems via LMI, Int. Journal of Pure and Applied Mathematics. 2008, 397-412. |
|
Chesi G., Polynomial Parameterizations in Robust Control and Visual Servoing, Department of Electrical and Computer Engineering, Hong Kong University of Science and Technology, Hong Kong, China. 2007. |
|
Chesi G., Program Committee member, Int. Conf. on Informatics in Control, Automation and Robotics (ICINCO) 2005-2009. 2008. |
|
Chesi G., Robots with an ’eye’ for the complex tasks, The Standard. 2008, March 4, 2008: 19. |
|
Chesi G. and Hung Y.S., Robust commutation time for switching polynomial systems, 46th IEEE Conf. on Decision and Control. 2007. |
|
Chesi G. and Hung Y.S., Trajectories bounds for nonlinear systems: a BMI approach, 46th IEEE Conf. on Decision and Control. 2007. |
|
Researcher
: Cheung CM |
|
List of Research Outputs |
|
Lei C.U., Cheung C.M. and Wong N., Efficient 2D linear-phase IIR filter design and application in image filtering, IAENG International Journal of Applied Mathematics. 2007, 37(1): 56-63. |
|
Lei
C.U., Cheung C.M. and Wong N., Efficient 2D linear-phase IIR
filter design and application in image processing, Advances in
Communication Systems and Electrical Engineering in series of Lecture Notes
Electrical Engineering. |
|
Lei C.U., Cheung C.M., Kwan H.K. and Wong N., Efficient complex continuous-time IIR filter design via generalized vector fitting, Proc. IAENG International Conference on Electrical Engineering. 2008, 1393-1398. |
|
Researcher
: Cheung HKY |
|
List of Research Outputs |
|
Fung
W.L., Cheung H.K.Y., Wong K.K.Y. and Kwok C.H., High
Extinction Ratio of Switched Packets by Two-Stage Four Wave Mixing in Highy
Nonlinear Dispersion-Shifted Fiber, Optoelectronics and Comm. Conference.
|
|
Fung
W.L., Cheung H.K.Y. and Wong K.K.Y., Performance of Wavelength
Exchange in Anomalous-dispersion Region, Optoelectronics and Comm.
Conference. |
|
Fung W.L., Cheung H.K.Y. and Wong K.K.Y., Widely Tunable Wavelength Exchange in Anomalous-Dispersion Regime, IEEE Photon Technol. Letter. IEEE, 2007, vol. 19, no. 22: pp.1846-1848. |
|
Researcher
: Cheung KYH |
|
List of Research Outputs |
|
Cheung K.Y.H., Fung W.L., Chui P.C. and Wong K.K.Y., All-Optical NRZ-to-RZ
Format Conversion based on Optical Parametric Amplifier, Optoelectronics
and Comm. Conf.. |
|
Cheung K.Y.H., Fung W.L., Chui P.C. and Wong K.K.Y., Dynamic Range of Wavelength Exchange in Highly Nonlinear Dispersion-Shifted Fiber, Opt. Fiber Comm. Conf.. 2008. |
|
Fung
W.L., Cheung K.Y.H.,
Kwok C.H. and Wong K.K.Y., High
Extinction Ratio of Switched Packets by Two-Stage Four Wave Mixing in Highly
Nonlinear Dispersion-Shifted Fiber, Optoelectronics and Comm. Conf.. |
|
Fung
W.L., Cheung K.Y.H.
and Wong K.K.Y., Performance of
Wavelength Exchange in Anomalous-dispersion Region, Optoelectronics and
Comm. Conf.. |
|
Fung W.L., Cheung K.Y.H. and Wong K.K.Y., Widely Tunable Wavelength Exchange in Anomalous-Dispersion Regime, IEEE Photon. Technol. Lett.. 2007, 19: 1846-1848. |
|
Fung
W.L., Cheung K.Y.H.
and Wong K.K.Y., Widely tunable
Wavelength Exchange in Anomalous-dispersion Regime, European Conf. on
Optical Communications. |
|
Researcher
: Cheung PYS |
|
Project Title: |
Integrated multimodal location information system for automobile |
|
Investigator(s): |
Cheung PYS |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Guangdong-Hong Kong Technology Cooperation Funding Scheme |
|
Start Date: |
04/2005 |
|
Abstract: |
|
A set of mobile location algorithms using the mobile network to accurately locate the position of the device. This project is to integrated this technology with GPS and develop an integrated multimodal platform technology for location information. This platform technology can be used in automobiles for navigation, automobile anti-theft system and asset tracking and management. |
|
List of Research Outputs |
|
Sum
K.W. and Cheung P.Y.S.,
Stabilized Anisotropic Diffusions, IEEE ICASSP International Conference on
Acoustics, Speech, and Signal Processing. |
|
Sum
K.W. and Cheung P.Y.S.,
Vessel Extraction Under Non-uniform Illumination: A Level Set Approach, IEEE
Transactions on Biomedical Engineering. |
|
Researcher
: Cheung SC |
|
List of Research Outputs |
|
Cheung S.C., Guo H., Leung J.C.K., Man K., Lai K.N. and Wu E.X., MRI visualization of rodent liver structure and peritoneal adhesion with dialyzate enhancement, Magnetic Resonance in Medicine. 2008, 59: 1170-4. |
|
Researcher
: Cheung SW |
|
Project Title: |
Estimation and tracking of RF high power amplifies characteristics for broadband radio communications systems |
|
Investigator(s): |
Cheung SW |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Seed Funding Programme for Basic Research |
|
Start Date: |
01/2005 |
|
Abstract: |
|
The objective of the project is to develop a algorithm to estimate and track the nonlinear characteristics of RF high power for broadband radio communmication systems. |
|
List of Research Outputs |
|
Cheung
S.W., Fok
W.W.T. and Tam V.W.L., TD-SCDMA Application
Award, |
|
Hui D.S.W., LAU K. .N. and Cheung S.W., Cross Layer Deaings for OFDMA Wireless Systems with Heterogeneous Delay Requirements, IEEE Transactions on Wireless Communications. 2007, 6 No. 8. |
|
Zhang Z., Dai X., Cheung S.W. and Yuk T.T.I., A Common Function of Different Union Bounds for Optimization and BER Evaluation of Space-Time codes, Wireless Personal Communications . Springer, 2008, 46: 493-506. |
|
Zhang Z., Cheung S.W. and Yuk T.T.I., Exact Evaluation of Block-Error Rate Using Correct Probability for for Space-Time Codes, IEEE International Symposium on Information Theory 2007. |
|
Researcher
: Cheung WT |
|
List of Research Outputs |
|
So W.K., Cheung W.T., Liu Y., Kwan H.K. and Wong N., Design and optimization of highly linear CMOS low noise amplifiers via geometric programming, Proc. Intl. Conf. on ASIC (ASICON). 2007. |
|
Researcher
: Cheung YS |
|
Project Title: |
Integrated multimodal location information system for automobile |
|
Investigator(s): |
Cheung PYS |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Guangdong-Hong Kong Technology Cooperation Funding Scheme |
|
Start Date: |
04/2005 |
|
Abstract: |
|
A set of mobile location algorithms using the mobile network to accurately locate the position of the device. This project is to integrated this technology with GPS and develop an integrated multimodal platform technology for location information. This platform technology can be used in automobiles for navigation, automobile anti-theft system and asset tracking and management. |
|
Researcher
: Chiu HS |
|
List of Research Outputs |
|
Chiu H.S. and Yeung L.K., On
Optimization of Joint Channel Assignment and Routing in |
|
Chiu H.S., Wu B. and Yeung L.K., Widest Spanning Tree for Multi-Channel Multi-Interface Wireless Mesh Networks, WCNC 2008. IEEE. |
|
Researcher
: Choi HW |
|
Project Title: |
Fibre-coupled Gallium Nitride Microarray |
|
Investigator(s): |
Choi HW, Wong KKY |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Seed Funding Programme for Basic Research |
|
Start Date: |
03/2006 |
|
Abstract: |
|
Displays have become a major part of our lives. A person spend an average of 5 hours watching a display, be it a television screen, computer monitor or some other sorts of information display. And displays have evolved over the decades, particularly in recent years. The bulky cathode ray tubes, which have been around for tens of years, are being replaced by flat-panel displays, which are based on a number of different technologies, including liquid crystal display (LCD), plasma, LCoS, organic and solid-state semiconductor displays. While each has it pros and cons, solid-state semiconductor displays using Gallium Nitride technology have several main advantages which makes it stand apart from its competitors: SMALL footprint, BRIGHT illuminance, HIGH efficiency, LOW cost of fabrication, LONG lifetime and most importantly, they are are EMISSIVE. Gallium Nitride (GaN) technology has emerged only in the past few years, and maturing at a very fast pace. In the past, focus has been placed on plain lighting applications, including high power LEDs. By alloying with Indium and Aluminium, the GaInAnN material system can provide luminescence (light emission) which ranges from 200+ nm (deep UV) to >600 nm (yellow). Together with various colour conversion techniques, such as phosphors or fluorescence particles, the complete visible spectrum can be covered, making these emmisive devices highly flexible for display purposes. Compared to LCDs, GaN displays are completely stand-alone display systems. LCDs required a backlight (and in fact LEDs are gradually replacing fluorescent tubes as backlights for LCDs!), resulting in bulky systems. GaN displays are emissive, they emit light themselves. A GaN display is as thick as the LED wafer itself, typically less than 500 microns overall. At present, a number of research groups and optoelectronics companies are working intensively in this area. Due to the extremely high efficiencies of GaN-based displays, they are typically fabricated at the micron-scale level, which produces sufficient light for projection onto much larger screens. Clusters of micro-LEDs are interconnected adopting a matrix-addressing scheme to form a micro-emissive arrays. Micro-emissive arrays, being small and compact, have found applications in fluorescence spectroscopy, eye implants, DNA sequencing and a wide range of chemical and biochemical uses. By incorporating optical elements into the system, emissive microarrays can be used as micro-displays. Micro-displays can be used for direct viewing in wearable displays or as the display engine for projectors. This is a major breakthrough in projection display technology, as the need for a projection lamp is eliminated, meaning the the dimension of a projection display system using GaN tecnhnolgy will be less than a quarter of its present size. A new way of using such micro-arrays will be explored in this project. Although GaN micro-arrays are already high flexible, the target of this work is to further extend it flexibility, by replacing conventional optics with fibre optics. Instead of incorporating optical elements for focusing and manipulating light, the emitted light from each individual pixel (micro-LED) will be coupled into a single strand of a fibre array. The fibre arrays will be of the same dimension of the GaN micro-array, and micro-optical components will be designed and fabricated to couple light efficiently into the fibres. Using fibre optics, the emitted light can be accurately steered into any directions and any location, and the output of the fibre-optics array will replicate the output of the GaN micro-array. The end product is a flexible emissive emmisive array from the fibre output, a truly revolutionary product. This is a beginning of a very large-scale project, and this seed grant is aimed at: (1) exploring the feasibility of this fibre-coupled emmisive array concept (2) to design and fabricate a basic LINEAR array for testing purposes (3) to design and fabricate a complementary optics element for fibre coupling (4) to design and fabricate a complementary fibre-optics arrays for light transmission (5) to assemble the overall micro-system (6) to test and characterize the overall micro-system, including coupling efficiencies, losses, brightness etc |
|
Project Title: |
Micrometer and nanometer scale GaN emissive devices at visible and ultraviolet wavelengths |
|
Investigator(s): |
Choi HW, Lai PT |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
|
Start Date: |
09/2006 |
|
Abstract: |
|
1 Dimensions: to explore the benefits and drawbacks of dimensional downscaling of nitride light emitters towards micron and nano-scale levels. Preliminary research work by ourselves and other researchers indicates that forming nanostructures, during growth or post-growth processing, can potentially improve internal quantum efficiency by strain relaxation, and increase light extraction efficiency by extending the surface area for photon extraction. 2 Wavelengths: to apply micron and nano-scale structures to visible and ultra-violet wavelengths. GaN-based visible emitters are already commonly used in lighting products. Ultra-violet wavelengths, on the other hand, are difficult to achieve as it is hard to grow high-quality Al-containing GaN alloys. Our project team contains two groups which have already won an international reputation in GaN MOCVD epitaxy, both of which are capable of producing high-quality UV wafers. One of the aims of this project, besides exploring micro-LED technology, is to assess the possibility of developing highly-efficient UV emitters. 3 Novel structures: to design new geometries to further improve efficiency of LEDs. Micro-LEDs in the form of micro-disks and micro-rings have been studied intensively in recent years. In this project, novel structures will be investigated. Hexagonal microstructures with a higher filling factor will be adopted to reduce wastage of junction area. Additionally, free-standing GaN will be explored using GaN-on-Si technology. GaN grown on Si is a core technology in the team of Prof Chua, a Co-I for this project. Using these materials, free-standing GaN can be fabricated by dry etching of the GaN disks, followed by wet etching of the Si underneath the GaN disk. 4 Colour Conversion: explore options for white light generation To adapt micro and nano-particles for efficienct colour conversion, with the ultimate target of achieving white light emission. 5 Applications: to adapt the results of this research plan towards various applications, including solid state lighting and biological/ chemical sensing using UV source excitation. |
|
Project Title: |
Novel methods of white light generation: a crucial step towards solid state lighting |
|
Investigator(s): |
Choi HW |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Seed Funding Programme for Basic Research |
|
Start Date: |
04/2007 |
|
Abstract: |
|
The target of this project is to explore the feasibility and to optimize the use of fluorescent microspheres, combined with a Gallium Nitride-based monochromatic light-emitting diode, towards white light generation. Preliminary studies on this approach indicate that very high colour conversion efficiencies can be achieved, with significant advantages over phosphor coatings, a conventional techniques adopted in the market. The use of phosphors, although widely adopted, has several disadvantages including Stokes-wave energy loss, low reliability, low luminous efficiency and severe patent control. Successful implementation of this scheme based on microspheres will push solid state lighting closer to reality, sooner. An important implication of this technology is the possibility of manufacturing wavelength tunable light sources on a single chip. Clusters of fluorescent microspheres can be deposited on different regions of a matrix-addressable micro-light-emitting diode array. Such an LED can be viewed as consisting of multiple micron-scale regions of blue, green and red emitting regions. The intensity of each region can be individually controlled. The overall effect is that the emission wavelength, or colour, can be continuously adjusted by applying different bias voltages to the various regions. An important advantage of this techniques is that uniform colour emission can be achieved by colour (RGB) mixing at the micron-scale. The key objectives of this projects are: (1) To develop and optimize a scheme based on fluorescent microspheres and GaN light emitting diodes to achieve white light emission. (2) To optimize the efficiency and uniformity of white light LEDs using this novel technique. (3) To develop established processes for manufacturing white light LEDs using fluorescent microspheres for commercial exploitations. (4) To explore the possibilities and methodologies of creating a wavelength-tunable visible LED. |
|
List of Research Outputs |
|
Choi H.W., Close-packed array improves LED output, nanotechweb.org. 2008. |
|
Choi H.W., Lai P.T. and Chua S.J., Whispering-gallery mode lasing in GaN microdisks, SPIE Newsroom. 2007. |
|
Hui K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., High Performance White LEDs using Fluorescent Microspheres, In: 1st International Conference on White LEDs and Solid State Lighting, 1st International Conference on White LEDs and Solid State Lighting. 2007. |
|
Hui
K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., High Performance White
LEDs using Fluorescent Microspheres, The 1st International Conference on
White LEDs and Solid State Lighting, Tokyo. |
|
Hui
K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Novel Energy-efficient
Solid-state White Light Sources, International Conference on Electrical
Engineering 2007. |
|
Hui K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Polychromatic Emission from Fluorescent-Microsphere-Coated LEDs, 7th International Conference on Nitride Semiconductors. 2008. |
|
Hui
K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Polychromatic Emission
from Fluorescent-Microsphere-Coated LEDs, 7th International Conference on
Nitride Semiconductors, |
|
Hui K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Polychromatic Emission from Fluorescent-Microsphere-Coated LEDs, Physica Status Solidi (c). 2008, 5: 2201. |
|
Hui K.N., Lai P.T. and Choi H.W., Spectral Conversion with fluorescent microspheres for light emitting diodes, Optics Express. 2008, 16: 13. |
|
Ng
W.N., Hui K.N., Leung C.H., Lai P.T. and Choi H.W., Fabrication of
Microstructures in GaN Light Emitting Diodes by Microsphere Lithography, International
Conference on Materials for Advanced Technologies 2007. |
|
Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Light Emitting Diodes with Wavelength-Tunable Output, 7th International Conference on Nitride Semiconductors. 2008. |
|
Ng
W.N., Leung C.H., Lai P.T. and Choi H.W., Light Emitting Diodes
with Wavelength-Tunable Output, 7th International Conference on Nitride
Semiconductors, |
|
Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Light-emitting Diodes with Photonic Crystal Grating Fabricated by Microsphere Lithography, 32th Workshop on Compound Semiconductor Devices and Integrated Circuits. 2008. |
|
Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Micro-pixel Light Emitting Diodes with Wavelength-tunable Output, Physica Status Solidi (c). 2008, 5: 2198. |
|
Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Nano-structuring GaN using Microsphere Lithography, J. Vacuum Sci & Tech B. 2008, 26: 76-79. |
|
Ng W.N., Wang X., Leung C.H., Lai P.T. and Choi H.W., Nanopatterning GaN with Microspheres, 7th International Conference on Nitride Semiconductors. 2008. |
|
Ng
W.N., Wang X., Leung C.H., Lai P.T. and Choi H.W., Nanopatterning GaN with
Microspheres, 7th International Conference on Nitride Semiconductors, |
|
Ng W.N., Wang X., Leung C.H., Lai P.T. and Choi H.W., Nanopatterning GaN with Microspheres, Physica Status Solidi (c). 2008, 5: 1615. |
|
Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Nanostructuring GaN using Microsphere Lithohraphy, Journal of Vacuum Science and Technology B. 2008, 26: 76. |
|
Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Photonic Crystal Light-emitting Diodes Fabricated by Microsphere Lithography, Nanotechnology. 2008, 19: 255302. |
|
Ng
W.N., Leung C.H., Lai P.T. and Choi H.W., White LEDs with Variable
Colour Temperature, The 1st International Conference on White LEDs and
Solid State Lighting, Tokyo. |
|
Ng
W.N., Hui K.N., Leung C.H., Lai P.T. and Choi H.W., White LEDs with Variable
Colour Temperature, 1st International Conference on White LEDs and |
|
Researcher
: Choy WCH |
|
Project Title: |
Wavelength tunable organic light emitting diodes (OLED) for high resolution color display applications |
|
Investigator(s): |
Choy WCH |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
|
Start Date: |
01/2006 |
|
Abstract: |
|
The main objectives of this project are: (1) Understanding the absolute optical and electrical properties of hosts and fluorescent dyes. (2) Investigating the effects of dyes. The effects of thickness of doped region and dye concentration on the emission spectrum will be primarily investigated through single fluorescent dye doped OLEDs. (3) Investigating the structures of wavelength tunable OLEDs. Two-color tunable OLEDs by doping dyes selectively in different regions of the host will be investigated with the knowledge of the hosts and dyes from previous sections. |
|
Project Title: |
Abnormal II-VI semiconductor Nanostructures and its Optoelectronic Properties |
|
Investigator(s): |
Choy WCH |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Seed Funding Programme for Basic Research |
|
Start Date: |
04/2007 |
|
Abstract: |
|
As one of the most important II-VI
compound semiconductors with a direct wide band gap, zinc selenide (ZnSe,
bulk crystal Eg = 2.7 eV at 300K) [1] exhibits a great potential for various
optoelectronic devices [2] and applications in spintronics [3], as well as
for energy up-conversion and tetra Hertz (THz) generation in a two-step optical
pumping regime [4]. ZnSe-based nanostructures with different forms have been
widely investigated in recent years, such as nanowires, nanobelts,
nanoneedles as well as ZnSe nanorods on in-situ synthesized ZnSe grains [5].
ZnSe generally have two structural polymorphs of wurtzite and zinc blende
[6]. However, due to the metastable, i.e. thermodynamically unstable, phase
of the wurtzite ZnSe at ambient conditions [6], most of the reports on ZnSe
nanostructures are zinc blende structures which are thermodynamically stable.
There are very limited studies which have successfully synthesized the
unstable (abnormal) wurtzite ZnSe structures and investigated their
optoelectronic properties yet some of the reported wurtzite ZnSe is not pure
but mix with zinc blende ZnSe [7, 8]. Besides, there are a lot of unknowns in
the formation mechanism of the abnormal wurtzite ZnSe. Consequently, there is
a desperate need of not only synthesizing the abnormal wurtzite ZnSe
nanostructures but also understanding the properties of the nanostructures.
The targets of this project are to synthesize the abnormal wurtzite
nanostructures and investigate their stability. Besides, we will study the
optoelectronic properties of the nanostructure for exploring their potential
applications. The first part of the project includes: ( |
|
List of Research Outputs |
|
Chen X., Choy W.C.H. and He S., Efficient Optical Modeling of Spontaneous Emission in a Cylindrically Layered nanostructure, OSA Opt. Express. 2007, 15: 10356-10361. |
|
Chen X., He S. and Choy W.C.H., Highly efficiency and tunable fluorescence of a nano-fluorophore in silica/metal dual shells with plasmonic resonance, Journal Appl. Phys.. 2008, 103: 024301. |
|
Chen X., Choy W.C.H., Liang C., Wai P.K.A. and He S., Modifications of the Exciton Lifetime and Internal Quantum Efficiency for Organic Light-Emitting Devices with a Weak/Strong Microcavity, Applied Physics Letters. 2007, 91: 221112-221114. |
|
Choy W.C.H. and Fong H.H., Comprehensive Investigation of Absolute Optical Properties of Organic Materials, Journal Physics D.. 2008, 41: 155109. |
|
Choy
W.C.H., Zheng H.M., Chen X. and He S., High-efficiency blue
fluorescent organic light emitting devices based on double emission layers, SPIE
Optics + Photonics, 2008. |
|
Choy
W.C.H., Chen
X., He S. and Chui P.C., Improved
Spontaneous Emission of a nano-fluorophore in metal nanoshells with plasmonic
resonance, Particle 2008 Conference, |
|
Choy W.C.H. and Ho Y.C., Improving the viewing angle of microcavity OLEDs by using dispersive Bragg grating, OSA Opt. express. 2007, 15: 13288-13294. |
|
Choy
W.C.H., Optical Design of Layered Organic
Optoelectronic Devices, In: Prof. J. Xue and Prof. Frankie So, |
|
Choy W.C.H., Optical Desing of Layered Organic Optoelectronic Device, Invited speaker/visitor at University of Florida, hosted by Prof. G Jing and Prof. Frankie So. 2008. |
|
Choy W.C.H., The Purcell Effect On Organic Light Emitting Devices, Invited speaker/visitor at Chang Chun Institute of Applied Chemistry, Chinese Academic of Sciences, hosted by Prof. G D Ma. 2007. |
|
Choy W.C.H., The Purcell effect on organic light emitting devices., In: Prof. D.. Ma, ChangChun Inst. of Applied Chemistry, Chinese Acad. of Sciences. 2007. |
|
Choy W.C.H., Niu J., Li W.L. and Chui P.C., Voltage Controlled Color Tunable Microcavity OLEDs with Enhanced Color Purity, Journal Physics D.. 2008, 41: 025106-025110. |
|
Jin
L., Wang J., |
|
Jin L., Choy W.C.H., Leung Y.P., Yuk T.T.I., Ong H.C. and Wang J.B., Synthesis and Analysis of abnormal Wurtzite ZnSe nanowheels, Journal Apply Physics. 2007, 102: 044302. |
|
Jin L., Choy W.C.H., Leung Y.P., Yuk T.T.I., Ong H.C. and Wang J.B., Synthesis and Analysis of abnormal Wurtzite ZnSe nanowheels, Virt. J. Nanoscale Sc. Technol.. 2007, 044302. |
|
Jin
L., Wang J., |
|
Leung Y.P., Choy W.C.H. and Yuk T.T.I., Linear Resistive Humidity Sensor Based on Quasi ID ZnSe Nanostructures, Chem. Phy. Lett.. 2008, 457: 198-201. |
|
Liang C., Choy W.C.H. and Huang C.H.U.N.H.U.I., The Electroluminescent Decay Mechanism of Rare-Earth Ions in OLEDs based on a Terbium Complex, IEEE Photo Technol. Lett.. 2007, 19: 1178-1180. |
|
Liang C., Choy W.C.H. and haung C.H., The Electroluminescent Decay Mechanism of Rare-Earth Ions in OLEDs based on a Terbium Complex, IEEE Photon Technology Letter. 2007, 19: 1178-1180. |
|
Liu S., Choy W.C.H., Jin L., Leung Y.P., Zheng G., wang J. and Soh A.K., Triple-crystal Zinc Selenide Nanobelts, J. Physical Chemistry C. 2007, 111: 9055-9059. |
|
Tao D. and Choy W.C.H., The Growth Mechanism of ZnO Single-crystal nanorods Synthesized by Polymer Complexing with Zinc Salts, Apply Physics A.. 2008, 91: 157-160. |
|
Zhang H., Dai Y., Ma D. and Choy W.C.H., High efficiency trandem organic light-emitting devices with A1/WO3/Au interconnecting layer, Applied Physics Letters. 2008, 92: 1009907. |
|
Zhang H. and Choy W.C.H., Highly efficient organic light-emitting devices with surface-modified metal anode by Vanadium pentoxide, Journal Physics D (fast track). 2008, 41: 062003-062005. |
|
Zhang H. and Choy W.C.H., Independently controlled high efficiency stacked organic light-emitting devices with A1/WO3/Au interconnecting layer, Journal Physics D.. 2008, 41: 105108-105113. |
|
Zhang H. and Choy W.C.H., Real-Time Color-Tunable Electroluminescence from Stacked organic LEDs Using Independently Addressable Middle Electrode, IEEE Photon Technol. Letter. 2008, 20: 1154-1156. |
|
Zheng T. and Choy W.C.H., An Effective Intermediate A1/Au Electrode for Stacked Color-Tunable Organic Light Emitting Devices, Apply Physics A.. 2008, 91: 501-506. |
|
Zheng
T. and Choy W.C.H., An
Effective Intermediate Al/Au Electrode for Stacked Color-Tunable Organic
Light Emitting Devices, SPIE Europe, |
|
Zheng T. and Choy W.C.H., High-efficiency blue fluorescent organic light emitting devices based on double emission layers, Journal Physics D.. 2008, 41: 055103-055105. |
|
List of Research Outputs |
|
Wong
N. and Chu C.K., A
fast passivity test for descriptor systems via skew-Hamiltonian/Hamiltonian
matrix pencil transformations, IEEE Trans. Circuits and |
|
List of Research Outputs |
|
Pang G.K.H. and Chu M.H., Personalised route selection system in vehicle navigation based on neural-fuzzy technologies, 14th World Congress on Intelligent Transport Systems. 2007. |
|
Pang
G.K.H. and Chu M.H., Route
Selection for Vehicle Navigation and Control, The 33rd Annual Conference
of the Industrial Electronics Society. |
|
Pang G.K.H. and Chu M.H., Route selection for vehicle navigation and control, IEEE International Conference on Industrial Informatics. 2007. |
|
List of Research Outputs |
|
Pang G.K.H. and Chu M.H., Personalised route selection system in vehicle navigation based on neural-fuzzy technologies, 14th World Congress on Intelligent Transport Systems. 2007. |
|
Pang
G.K.H. and Chu M.H., Route
Selection for Vehicle Navigation and Control, The 33rd Annual Conference
of the Industrial Electronics Society. |
|
Pang G.K.H. and Chu M.H., Route selection for vehicle navigation and control, IEEE International Conference on Industrial Informatics. 2007. |
|
Researcher
: Chui PC |
|
Project Title: |
Effects of device structures on the performance of OLED |
|
Investigator(s): |
Chui PC, Choy WCH, Lai PT |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Small Project Funding |
|
Start Date: |
11/2004 |
|
Abstract: |
|
To study the optical properties of organic materials to establish models for simulating device structures and to fabtricate OLED based on the results in and to optimize the device structrues. |
|
List of Research Outputs |
|
Cheung
K.Y.H., Fung W.L., Chui P.C. and Wong K.K.Y., All-Optical NRZ-to-RZ
Format Conversion based on Optical Parametric Amplifier, Optoelectronics
and Comm. Conf.. |
|
Cheung K.Y.H., Fung W.L., Chui P.C. and Wong K.K.Y., Dynamic Range of Wavelength Exchange in Highly Nonlinear Dispersion-Shifted Fiber, Opt. Fiber Comm. Conf.. 2008. |
|
Choy
W.C.H., Chen X., He S. and Chui P.C., Improved Spontaneous
Emission of a nano-fluorophore in metal nanoshells with plasmonic resonance, Particle
2008 Conference, |
|
Choy W.C.H., Niu J., Li W.L. and Chui P.C., Voltage Controlled Color Tunable Microcavity OLEDs with Enhanced Color Purity, Journal Physics D.. 2008, 41: 025106-025110. |
|
Kuo P.P., Chui P.C. and Wong K.K.Y., A Comprehensive Study on Crosstalk Suppression Techniques in Fiber Optical Parametric Amplifier by Modulation format, IEEE J. on Selected Topics in Quantum Electronics. 2008, vol. 14, no. 3: pp. 659-665. |
|
Kuo
P.P., Chui P.C. and Wong K.K.Y., Comparison on Crosstalk
Tolerance of RZ-DPSK and RZ-OOK Modulation Format in Fiber Optical Parametric
Amplifier, European Conf. on Optical Communications. |
|
Kuo
P.P., Chui P.C. and Wong K.K.Y., Multi-channel Ultrawideband
Monocycle Pulse Generation via Cross Phase Modulation and Spectral Filtering,
Optoelectronics and Comm. Conference. |
|
Kuo P.P., Shimizu K., Chui P.C. and Wong K.K.Y., Receiver sensitivity improvement for ON-OFF keying signal by using optical parametric amplifier and balanced detection, 2008 IEEE/LEOS Winter Topical Meetings. 2008. |
|
Kuo P.P., Chui P.C. and Wong K.K.Y., Simultaneous Optical Delay and NRZ-RZ Format Conversion via Cross-Polarization Modulation and Pulse Pre-Chirping, Conf. on Lasers & Electro-Optics. 2008. |
|
Kuo
P.P., Chui P.C. and Wong K.K.Y., Tunable Repetition-rate
Ultrawideband Monocycle Pulse Generation by using Optical Parametric
Amplifier, Optoelectronics and Comm. Conf.. |
|
Researcher
: Chung SW |
|
List of Research Outputs |
|
Chung S.W. and Chau K.T., A new compliance control approach for traveling-wave ultrasonic motors, IEEE Transactions on Industrial Electronics. 2008, 55(1): 302-311. |
|
Researcher
: Dai X |
|
List of Research Outputs |
|
Zhang Z., Dai X., Cheung S.W. and Yuk T.T.I., A Common Function of Different Union Bounds for Optimization and BER Evaluation of Space-Time codes, Wireless Personal Communications . Springer, 2008, 46: 493-506. |
|
Researcher
: Diao Z |
|
List of Research Outputs |
|
Sun
F., Li V.O.K. and Diao Z., Joint dynamic subcarrier
allocation and flow control for real-time streaming over multiuser OFDM
systems, Proc. IEEE Globecom. |
|
Sun F., Li V.O.K., Diao Z. and Xu Z.Y., Medium access control with physical layer assisted link differentiation, IEEE Transactions on Vehicular Technology. 2008, 57: 1255-1271. |
|
Sun
F., Li V.O.K. and Diao Z., Modified bipartite
matching for multiobjective optimization, Proc. IEEE TENCON. |
|
Sun
F., Li V.O.K. and Diao Z., Multiobjective
optimized bipartite matching for resource allocation, Proc. IEEE International
Symposium on Communications and Information Technologies. |
|
Researcher
: Djurisic A |
|
Project Title: |
Structural, electrical, and optical properties of organic/inorganic nanocomposites for optoelectronic applications |
|
Investigator(s): |
Djurisic A, Chan WK |
|
Department: |
Physics |
|
Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
|
Start Date: |
09/2004 |
|
Abstract: |
|
To study : (1) the fabrication and/or surface modifications of inorganic nanostructures; (2) the fabrication of nanocomposite films containing one or more types of nanostructures; (3) the study of structural, electrical, and optical properties of nanocomposite films; (3) the application of nanocomposite films to organic light emitting diodes and organic solar cells. |
|
Project Title: |
Optical properties of ZnO nanostructures |
|
Investigator(s): |
Djurisic A, Chan WK |
|
Department: |
Physics |
|
Source(s) of Funding: |
France/Hong Kong Joint Research Scheme - Travel Grants |
|
Start Date: |
01/2006 |
|
Abstract: |
|
1) Fabrication and charaterization of the optical properties of ZnO nanostructures; 2) Investigation of the effect of surface functionalization on the optical properties |
|
Project Title: |
Nanomaterial homojunctions and heterostructures for photovoltaic applications |
|
Investigator(s): |
Djurisic A |
|
Department: |
Physics |
|
Source(s) of Funding: |
Seed Funding Programme for Basic Research |
|
Start Date: |
02/2007 |
|
Abstract: |
|
In recent years, nanomaterials have
attracted lots of attention due to their great potential for applications in
various optoelectronic devices with improved performance. In particular,
one-dimensional nanostructures are of great interest for solar cell
applications [1,2]. The important advantage of one dimensional nanostructures
is improved charge transport through a single crystalline nanowire compared
to a layer consisting of nanoparticles [1]. For example, mobility in single
crystal rutile TiO2 ( |
|
Researcher
: Du Z |
|
List of Research Outputs |
|
Du Z., Zhang Y., Liu L., Guan Z.H., Ni Y. and Wu F.F., Structure-preserved power-frequency slow dynamics simulation of interconnected ac/dc power systems with AGC consideration, IET Generation, Transmission & Distribution. 2007, 1, Issue 6: 920-927. |
|
Researcher
: Fan Y |
|
List of Research Outputs |
|
Fan Y. and Chau K.T., Design, modeling, and analysis of a brushless doubly fed doubly salient machine for electric vehicles, IEEE Transactions on Industry Applications. 2008, 44(3): 727-734. |
|
Researcher
: Feng D |
|
List of Research Outputs |
|
Feng D., Gan D., Zhong J. and Ni Y., Supplier Asset Allocation in a Pool-based Electricity Market, IEEE Transactions on Power Systems. 2007, 1129-1138. |
|
Researcher
: Fok WWT |
|
List of Research Outputs |
|
Cheung
S.W., Fok W.W.T. and Tam V.W.L., TD-SCDMA Application Award, |
|
Fok W.W.T., Tam V.W.L. and Bose I., Asia-Pacific Financial Market Forecast by Computational Methodologies, In: W.W.T. Fok, V.W.L. Tam, H. Ng, I. Bose, 6th NTU International Conference on Economics, Finance and Accounting "Financial Engineering and Financial Intermediation". 2008NTU經濟金融會計國際研討會, Taiwan, 2008. |
|
Fok
W.W.T. and Ng H., Impact of RFID to the
Technology and Economic Development in the |
|
Fok
W.W.T., In: |
|
Researcher
: Fong HH |
|
List of Research Outputs |
|
Choy W.C.H. and Fong H.H., Comprehensive Investigation of Absolute Optical Properties of Organic Materials, Journal Physics D.. 2008, 41: 155109. |
|
List of Research Outputs |
|
Hui K.N., Fu W.Y., Leung C.H., Lai P.T. and Wong K.K.Y., Polychromatic Light Emitting Diodes with a Fluorescent Nanosphere Opal Coating, Nanotechnology, NANO/279137/PAP/197637, 2008. 2008. |
|
Researcher
: Fung PCW |
|
Project Title: |
Development of a novel natural antioxidant with strong anti-aging and protective properties for skin |
|
Investigator(s): |
Fung PCW, Shen J |
|
Department: |
Medicine |
|
Source(s) of Funding: |
Seed Funding Programme for Applied Research |
|
Start Date: |
07/2002 |
|
Abstract: |
|
To develop a novel antioxidants from herbal products which can scavenge superoxide, hydroxyl and lipid peroxide free radicals in skin. |
|
Project Title: |
Roles of plasma membrane cholesterol homeostasis in regulating neuronal oxidative damage of ischemic stroke |
|
Investigator(s): |
Fung PCW, Shen J |
|
Department: |
Medicine |
|
Source(s) of Funding: |
Small Project Funding |
|
Start Date: |
11/2003 |
|
Abstract: |
|
To understand the roles of plasma membrane cholesterol homeostasis in protecting neuronal cells from oxidative damage during ischemic stroke. |
|
Project Title: |
High level brain activity studies and applications |
|
Investigator(s): |
Fung PCW |
|
Department: |
Medicine |
|
Source(s) of Funding: |
NSFC/RGC Joint Research Scheme |
|
Start Date: |
01/2004 |
|
Abstract: |
|
To better understand and utilize the functioning of the brain. |
|
Project Title: |
A spatio-temporal approach to quantitative coronary analysis |
|
Investigator(s): |
|
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Small Project Funding |
|
Start Date: |
11/2004 |
|
Abstract: |
|
To better diagnose and visualize the coronary arteries by recovering the embedded spatio-temporal relationship from the biplane angiogram sequence. |
|
List of Research Outputs |
|
Cheng S.W.K., Lam S.K., Fung S.K. and Ho J.P., A Computational Fluid Dynamic Study of Stent Graft Remodeling after Endovascular Repair of Thoracic Aortic Dissections, 22nd Annual Meeting of the Western Vascular Society. 2007. |
|
Cheng S.W.K., Lam S.K., Fung S.K. and Ho P., A computational fluid dynamic study of stent graft remodeling after endovascular repair of thoracic aortic dissections, The 22nd Annual Meeting of Western Vascular Society, Kohala Coast, Kona, Hawaii, 8-11 September 2007. |
|
Fung S.K., Segars W.P., Geschwind J.F.H., Tsui B.M.W. and Taguchi K., Effect of Respiratory Motion on Abdominal C-arm CT Angiography Using the 4D NCAT Phantom, IEEE Medical Imaging Conference. 2007. |
|
Fung S.K., Lam S.K., Cheng S.W.K. and Chow K.W., On stent graft models in thoracic aortic endovascular repair: A computational investigation of the hemodynamic factors, Computers in Biology and Medicine. 2008, 38: 484 - 489. |
|
Lai H.W., Fung S.K., Lam H.Y. and Lee W.K., Disaggregate Loads by Particle Swarm Optimization Method for Non-intrusive Load Monitoring, International Conference on Electrical Engineering. 2007, ICEE-672. |
|
Lam E.Y.M. and Fung S.K., Automatic white balance in digital photography, Single-Sensor Imaging: Methods And Applications For Digital Cameras. CRC Press, 2007. |
|
Lam H.Y., Lee W.K. and Fung S.K., To Construct the Taxonomy of Electrical Appliances Based on Voltage-Current Trajectory Load Signature, International Conference on Electrical Engineering. 2007, ICEE-428. |
|
Lam S.K., Fung S.K., Cheng S.W.K. and Chow K.W., A Computational Investigation on the Effect of Biomechanical Factors Related to Stent-graft Models in the Thoracic Aorta, International Conference of the IEEE Engineering in Medicine and Biology Society, in conjunction with the Biennial Conference of the French Society of Biological and Medical Engineering, Lyon, France. 2007. |
|
Liang D., Lam E.Y.M. and Fung S.K., A least squares quantization table method for direct reconstruction of MR images with non-Cartesian trajectory, Journal of Magnetic Resonance. 2007, 188: 141-150. |
|
Liang D., Lam E.Y.M. and Fung S.K., Spiral MRI reconstruction using least squares quantization table, Medical Imaging and Informatics. 2007. |
|
Su
Q., Wong K.K.Y. and Fung S.K., A Semi-Automatic
Clustering-Based Level Set Method for Segmentation of Endocardium from MSCT
Images, 29th Annual International Conference of the IEEE Engineering in
Medicine and Biology Society. |
|
Researcher
: Fung WL |
|
List of Research Outputs |
|
Cheung
K.Y.H., Fung W.L., Chui P.C. and Wong K.K.Y., All-Optical NRZ-to-RZ
Format Conversion based on Optical Parametric Amplifier, Optoelectronics
and Comm. Conf.. |
|
Cheung K.Y.H., Fung W.L., Chui P.C. and Wong K.K.Y., Dynamic Range of Wavelength Exchange in Highly Nonlinear Dispersion-Shifted Fiber, Opt. Fiber Comm. Conf.. 2008. |
|
Fung W.L., Cheung K.Y.H., Kwok
C.H. and Wong K.K.Y., High Extinction
Ratio of Switched Packets by Two-Stage Four Wave Mixing in Highly Nonlinear
Dispersion-Shifted Fiber, Optoelectronics and Comm. Conf.. |
|
Fung
W.L., Cheung
H.K.Y., Wong K.K.Y. and Kwok C.H.,
High Extinction Ratio of Switched Packets by Two-Stage Four Wave Mixing in
Highy Nonlinear Dispersion-Shifted Fiber, Optoelectronics and Comm.
Conference. |
|
Fung W.L., Cheung K.Y.H. and Wong K.K.Y., Performance of Wavelength
Exchange in Anomalous-dispersion Region, Optoelectronics and Comm. Conf..
|
|
Fung
W.L., Cheung
H.K.Y. and Wong K.K.Y.,
Performance of Wavelength Exchange in Anomalous-dispersion Region, Optoelectronics
and Comm. Conference. |
|
Fung W.L., Cheung H.K.Y. and Wong K.K.Y., Widely Tunable Wavelength Exchange in Anomalous-Dispersion Regime, IEEE Photon Technol. Letter. IEEE, 2007, vol. 19, no. 22: pp.1846-1848. |
|
Fung W.L., Cheung K.Y.H. and Wong K.K.Y., Widely Tunable Wavelength Exchange in Anomalous-Dispersion Regime, IEEE Photon. Technol. Lett.. 2007, 19: 1846-1848. |
|
Fung W.L., Cheung K.Y.H. and Wong K.K.Y., Widely tunable Wavelength
Exchange in Anomalous-dispersion Regime, European Conf. on Optical
Communications. |
|
Researcher
: Fung WL |
|
List of Research Outputs |
|
Cheung
K.Y.H., Fung W.L., Chui P.C. and Wong K.K.Y., All-Optical NRZ-to-RZ
Format Conversion based on Optical Parametric Amplifier, Optoelectronics
and Comm. Conf.. |
|
Cheung K.Y.H., Fung W.L., Chui P.C. and Wong K.K.Y., Dynamic Range of Wavelength Exchange in Highly Nonlinear Dispersion-Shifted Fiber, Opt. Fiber Comm. Conf.. 2008. |
|
Fung W.L., Cheung K.Y.H., Kwok
C.H. and Wong K.K.Y., High Extinction
Ratio of Switched Packets by Two-Stage Four Wave Mixing in Highly Nonlinear
Dispersion-Shifted Fiber, Optoelectronics and Comm. Conf.. |
|
Fung
W.L., Cheung
H.K.Y., Wong K.K.Y. and Kwok C.H.,
High Extinction Ratio of Switched Packets by Two-Stage Four Wave Mixing in
Highy Nonlinear Dispersion-Shifted Fiber, Optoelectronics and Comm.
Conference. |
|
Fung W.L., Cheung K.Y.H. and Wong K.K.Y., Performance of Wavelength
Exchange in Anomalous-dispersion Region, Optoelectronics and Comm. Conf..
|
|
Fung
W.L., Cheung
H.K.Y. and Wong K.K.Y.,
Performance of Wavelength Exchange in Anomalous-dispersion Region, Optoelectronics
and Comm. Conference. |
|
Fung W.L., Cheung H.K.Y. and Wong K.K.Y., Widely Tunable Wavelength Exchange in Anomalous-Dispersion Regime, IEEE Photon Technol. Letter. IEEE, 2007, vol. 19, no. 22: pp.1846-1848. |
|
Fung W.L., Cheung K.Y.H. and Wong K.K.Y., Widely Tunable Wavelength Exchange in Anomalous-Dispersion Regime, IEEE Photon. Technol. Lett.. 2007, 19: 1846-1848. |
|
Fung W.L., Cheung K.Y.H. and Wong K.K.Y., Widely tunable Wavelength
Exchange in Anomalous-dispersion Regime, European Conf. on Optical
Communications. |
|
Researcher
: Ge F |
|
List of Research Outputs |
|
Ge F., Shen D., Pang Y. and Li V.O.K., Super-resolution time delay estimation in multipath environments, IEEE Transactions on Circuits and Systems I. 2007, 54: 1977-1986. |
|
Researcher
: Geng B |
|
List of Research Outputs |
|
Geng B., Zhou X., Zhu J., Hung Y.S. and Wong S.T.C., Comparison of reversible-jump Markov-chain-Monte-Carlo learning approach with other methods for missing enzyme identification, Journal of Biomedical Informatics. 2008, 41: 272-281. |
|
Researcher
: Gong Y |
|
List of Research Outputs |
|
Chau K.T., Gong Y. and Jiang J., A hybrid dual-memory motor, IEEE International Magnetics Conference. 2008, CD-ROM. |
|
Researcher
: Ho AYH |
|
List of Research Outputs |
|
Ho A.Y.H., Lei C.U. and Wong N., A common subexpression sharing approach for multiplierless synthesis of multiple constant multiplications, IAENG Engineering Letters. 2007, 15(1): 149-156. |
|
Ho A.Y.H., Lei C.U., Kwan H.K. and Wong N., Global optimization of common subexpressions for multiplierless synthesis of multiple constant multiplications, Proc. 13th Asia and South Pacific Design Automation Conference ASP-DAC. 2008, 119-124. |
|
Ho
A.Y.H., Lei C.U. and Wong N., Multiplierless synthesis of
multiple constant multiplications using common subexpression sharing with
genetic algorithm, Advances in Communication Systems and Electrical
Engineering in series of Lecture Notes Electrical Engineering. |
|
Researcher
: Ho KL |
|
Project Title: |
A study of robust local polynomial regression and its applications to spectral estimation and nonlinear time series analysis |
|
Investigator(s): |
Ho KL, Chan SC, Hu Y |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
|
Start Date: |
10/2006 |
|
Abstract: |
|
(1) To develop a new time-frequency analysis methods based on the proposed robust Local Polynomial Regression (LPR) using M-estimation and bandwidth selection techniques. It is known that transient components, which can be viewed as outliers to time-frequency distributions (TFDs) such as the periodogram, significantly affect the visualization of TFDs. Based on robust Local Polynomial Regression (LPR), we shall develop a new TFD which aims to isolate the transient and sinusoidal components in the time series and give a much better interpretation of the TFD. We shall focus on the Lomb periodogram, because it can also apply to non-uniformly spaced data. Since the conventional Lomb periodogram is frequently used in analyzing heart rate variability and coherence analysis of electroencephalogram (EEG) signals in biomedical engineering, we expect the new method will significantly improve the performance of existing methods. A detailed comparison, especially on the performance of various bandwidth selection methods, will be performed. (2) To develop a new nonlinear time series analysis method based on the proposed robust LPR under jump discontinuities and impulsive outliers. Most nonlinear time series analysis methods such as the adaptive functional coefficients autoregressive models (AFAR) are largely based on Least Squares (LS) estimates. They are therefore susceptible to impulsive outliers and jump discontinuities. Based on the robust LPR, we shall develop a robust AFAR method to combat these adverse effects. Since the AFAR model, which is a generalization of conventional autoregressive model, is a relatively new model, efficient recursive implementation using the recursive LS and Least Mean Squares algorithms are not yet available. We shall also study its recursive implementation. As conventional AR models have been extensively used in modeling speech, communication channels, and other biological signals, it is expected that the new robust recursive AFAR model will have a wide range of engineering applications. (3) To study the performance of efficient bandwidth selection algorithms and applications With continuous research in the statistical community, a number of efficient bandwidth selection algorithms are now available. The ICI rule is one such example and a more detailed study of various bandwidth selection algorithms is highly beneficial to the signal processing community. Specifically, our evaluation will focus on the modeling of electrocardiogram (ECG) and electromyography (EMG) signals, and smoothing of magnetic resonance imaging (MRI) images. (4) Possible outcome and significance: As stated above, LPR and bandwidth selection algorithms have wide range of applications. These concepts and results are less widely known in the signal processing and biomedical communities. This proposal serves as a pilot study in this direction and its findings will benefit practical applications of these novel mathematical techniques. |
|
List of Research Outputs |
|
Chen H., Chan S.C. and Ho K.L., Adaptive beamforming using frequency invariant uniform concentric circular arrays, IEEE Transactions on Circuits and Systems I. 2007, vol. 54, no. 9: pp. 1938-1949. |
|
Kwan H.K., Lui S.H., Lei C.U., Liu Y., Wong N. and Ho K.L., Design of Hybrid Continuous-Time Discrete-Time Delta Modulators, Proc. IEEE Int. Symp. Circuits Syst. ISCAS. 2008, 1224-1227. |
|
Researcher
: Hu B |
|
List of Research Outputs |
|
Hu B. and Yeung L.K., Achieving 100% Throughput in Two-stage Switch with Feedback, HPSR 2008. |
|
Hu B. and Yeung L.K., On Joint Sequence Design for Feedback-based Two-stage Switch Architecture, HPSR 2008. |
|
Researcher
: Hui DSW |
|
List of Research Outputs |
|
Hui D.S.W., LAU K. .N. and Cheung S.W., Cross Layer Deaings for OFDMA Wireless Systems with Heterogeneous Delay Requirements, IEEE Transactions on Wireless Communications. 2007, 6 No. 8. |
|
Researcher
: Hui KN |
|
List of Research Outputs |
|
Hui K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., High Performance White LEDs using Fluorescent Microspheres, In: 1st International Conference on White LEDs and Solid State Lighting, 1st International Conference on White LEDs and Solid State Lighting. 2007. |
|
Hui K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., High Performance White LEDs
using Fluorescent Microspheres, The 1st International Conference on White
LEDs and Solid State Lighting, Tokyo. |
|
Hui K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Novel Energy-efficient
Solid-state White Light Sources, International Conference on Electrical
Engineering 2007. |
|
Hui K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Polychromatic Emission from Fluorescent-Microsphere-Coated LEDs, 7th International Conference on Nitride Semiconductors. 2008. |
|
Hui K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Polychromatic Emission from
Fluorescent-Microsphere-Coated LEDs, 7th International Conference on
Nitride Semiconductors, |
|
Hui K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Polychromatic Emission from Fluorescent-Microsphere-Coated LEDs, Physica Status Solidi (c). 2008, 5: 2201. |
|
Hui K.N., Fu W.Y., Leung C.H., Lai P.T. and Wong K.K.Y., Polychromatic Light Emitting Diodes with a Fluorescent Nanosphere Opal Coating, Nanotechnology, NANO/279137/PAP/197637, 2008. 2008. |
|
Hui K.N., Lai P.T. and Choi H.W., Spectral Conversion with fluorescent microspheres for light emitting diodes, Optics Express. 2008, 16: 13. |
|
Ng
W.N., Hui K.N., Leung C.H., Lai P.T. and Choi H.W., Fabrication of
Microstructures in GaN Light Emitting Diodes by Microsphere Lithography, International
Conference on Materials for Advanced Technologies 2007. |
|
Ng
W.N., Hui K.N., Leung C.H., Lai P.T. and Choi H.W., White LEDs with Variable
Colour Temperature, 1st International Conference on White LEDs and |
|
Researcher
: Hui KN |
|
List of Research Outputs |
|
Hui K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., High Performance White LEDs using Fluorescent Microspheres, In: 1st International Conference on White LEDs and Solid State Lighting, 1st International Conference on White LEDs and Solid State Lighting. 2007. |
|
Hui K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., High Performance White LEDs
using Fluorescent Microspheres, The 1st International Conference on White
LEDs and Solid State Lighting, Tokyo. |
|
Hui K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Novel Energy-efficient
Solid-state White Light Sources, International Conference on Electrical
Engineering 2007. |
|
Hui K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Polychromatic Emission from Fluorescent-Microsphere-Coated LEDs, 7th International Conference on Nitride Semiconductors. 2008. |
|
Hui K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Polychromatic Emission from
Fluorescent-Microsphere-Coated LEDs, 7th International Conference on
Nitride Semiconductors, |
|
Hui K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Polychromatic Emission from Fluorescent-Microsphere-Coated LEDs, Physica Status Solidi (c). 2008, 5: 2201. |
|
Hui K.N., Fu W.Y., Leung C.H., Lai P.T. and Wong K.K.Y., Polychromatic Light Emitting Diodes with a Fluorescent Nanosphere Opal Coating, Nanotechnology, NANO/279137/PAP/197637, 2008. 2008. |
|
Hui K.N., Lai P.T. and Choi H.W., Spectral Conversion with fluorescent microspheres for light emitting diodes, Optics Express. 2008, 16: 13. |
|
Ng
W.N., Hui K.N., Leung C.H., Lai P.T. and Choi H.W., Fabrication of
Microstructures in GaN Light Emitting Diodes by Microsphere Lithography, International
Conference on Materials for Advanced Technologies 2007. |
|
Ng
W.N., Hui K.N., Leung C.H., Lai P.T. and Choi H.W., White LEDs with Variable
Colour Temperature, 1st International Conference on White LEDs and |
|
Researcher
: Hui SK |
|
List of Research Outputs |
|
Mi S., Hu B., Hahm K., Luo Y., Hui S.K., Yuan Q.J., Wong W.M., Wang L., Su H., Chu T.H., Guo J., Zhang W., So K.F., Pepinsky B., Shao Z., Graff C., Garber E., Jung V., Wu E.X. and Wu W., LINGO-1 antagonist promotes spinal cord remyelination and axonal integrity in MOG-induced experimental autoimmune encephalomyelitis, Nature Medicine. 2007, 13(10): 1228-1233. |
|
Researcher
: Hui TW |
|
List of Research Outputs |
|
Hui T.W. and Pang G.K.H., 3D profile reconstruction of solder paste based on phase, 5th IEEE International Conference on Industrial Informatics. 2007. |
|
Researcher
: Hung YS |
|
Project Title: |
Parallel robot |
|
Investigator(s): |
Hung YS |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Small Project Funding |
|
Start Date: |
11/2004 |
|
Abstract: |
|
To develop a 4-dof parallel mechanism with high position accuracy and high payload efficiency. |
|
Project Title: |
3D Geometric Model Construction from Turntable Image Sequence |
|
Investigator(s): |
Hung YS, Shum HHY |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
|
Start Date: |
01/2006 |
|
Abstract: |
|
The objective of this project is to obtain a complete solution for 3D reconstruction from a turntable sequence by taking full advantage of the motion constraint, but without assuming that the cameras intrinsic parameters (e.g. focal length) are fixed. |
|
Project Title: |
Clustering and Classification Methods for Bioinformatics |
|
Investigator(s): |
Hung YS |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Small Project Funding |
|
Start Date: |
01/2007 |
|
Abstract: |
|
Microarrays are introduced for monitoring thousands of expression levels of genes across different samples. Researchers are now focusing on how to discover patterns of gene expressions which are useful in finding co-regulated genes, inferring genetic networks and possibly introducing new biomarkers for specific cancers [1]. Nevertheless, microarray datasets present a lot of challenges to current analytical tools. One major problem is that the number of variables (genes) present is always of several orders of magnitude greater than that of the number of samples [2]. In order to find out distinguishing patterns across the samples, two types of analyses have to be performed: unsupervised clustering and supervised classification. Unsupervised clustering does not require the incorporation of any prior knowledge in the process. This is essentially a grouping technique that aims to find genes with similar expression profiles [3]. Some commonly used techniques include dimension reduction and clustering. Research has already showed that these techniques are useful in microarray data analysis [4-6]. Supervised classification requires prior information on class labels of samples, knowledge of which is essential for training and prediction purposes. Common supervised classification methds include bayesian classifers, support vector machines and k-nearest neighor clustering. All existing techniques have shortcomings in their robustness of performance for different datasets, and many of them require careful parameter tuning to achieve desired results. In this project, a feature association method, which is commonly used in computer vision, will be applied to the problem of clustering and classification of microarray datasets. Similar to Principal Component Analysis, this algorithm clusters datum by a dimension reduction approach. Preliminary experimental results show that on average, it performs better than other clustering tools. More importantly, the propsed method, unlike other clustering algorithms, does not rely on other parameters except the distance metric, and is therefore more robust. In addition, the number of clusters need not be predefined which is a constraint in most of the unsupervised clustering algorithms available. Our aim is therefore to borrow techniques from computer vision to develop a new clustering and classsification approach for microarray datasets that overcomes difficult issues encountered in exsisting techniques. |
|
List of Research Outputs |
|
Chang
C., Ding Z., Hung Y.S. and
Fung P.C.W., Fast network component
analysis (FastNCA) for gene regulatory network reconstruction from microarray
data, Bioinformatics. |
|
Chang
C., Ding Z., Hung Y.S. and
Fung P.C.W., Fast network component
analysis for gene regulation networks, IEEE International Workshop on
Machine Learning for Signal Processing. |
|
Chang C., Fung P.C.W. and Hung Y.S., Improved Gene Prediction by Resampling-based Spectral Analysis of DNA Sequence, 5th International Conference on Information Technology and Application in Biomedicine (ITAB 2008). 2008. |
|
Chesi G. and Hung Y.S., Analysis and synthesis of nonlinear systems with uncertain initial conditions, IEEE Transactions on Automatic Control. 2008, 53: 1262-1267. |
|
Chesi G. and Hung Y.S., Global path-planning for constrained and optimal visual servoing, IEEE Transactions on Robotics. 2007, 23, No. 5: 1050-1060. |
|
Chesi G. and Hung Y.S., Image noise induced errors in camera positioning, IEEE Transactions on Pattern Analysis and Machine Intelligence. 2007, 29: 1476-1480. |
|
Chesi G. and Hung Y.S., Robust commutation time for switching polynomial systems, 46th IEEE Conf. on Decision and Control. 2007. |
|
Chesi G. and Hung Y.S., Trajectories bounds for nonlinear systems: a BMI approach, 46th IEEE Conf. on Decision and Control. 2007. |
|
Geng B., Zhou X., Zhu J., Hung Y.S. and Wong S.T.C., Comparison of reversible-jump Markov-chain-Monte-Carlo learning approach with other methods for missing enzyme identification, Journal of Biomedical Informatics. 2008, 41: 272-281. |
|
Hung Y.S., Leung Wai Sun Fellowship, 2007. |
|
Hung
Y.S., Nonlinear systems analysis and
synthesis by polynomial Lyapunov functions, |
|
Hung
Y.S., Positive polynomial optimization for
control and visual servoing, |
|
Li Y., Hung Y.S. and Lee S., A stratified self-calibration method for circular motion in spite of varying intrinsic parameters, Image and Vision Computing. 2008, 26 No. 6: 731-739. |
|
Li Y., Tang W.K.A. and Hung Y.S., Stratified self-calibration and metric reconstruction for zooming/refocusing circular motion sequence, Journal of Mathematical Imaging and Vision. 2008, 31: 105-118. |
|
Xiang L., Ye Z., Xu X., Chang C., Xu W. and Hung Y.S., Direction of arrival estimation for uniform circular array based on fourth-order cumulants in the presence of unknown mutual coupling, IET Microwaves, Antennas & Propagation. 2008, 2: 281-287. |
|
Xu W.,
Chang C., Hung Y.S. and Fung P.C.W., Asymptotic Properties of
Order Statistics Correlation Coefficient in the |
|
Xu W., Chang C., Hung Y.S., Kwan S.K. and Fung P.C.W., Order statistics correlation coefficient as a novel association measurement with applications to biosignal analysis, IEEE Transactions on Signal Processing. IEEE, 2007, 55: 5552-5563. |
|
Xu W., Chang C., Hung Y.S. and Fung P.C.W., Quantifying organization during atrial fibrillation based on order statistics correlation coefficient, ITAB 2008/ISSSBHE2008. |
|
Yao J.C., Chang C., Salmi M.L., Hung Y.S., Loraine A. and Roux S.J.,
Genome-scale cluster analysis of replicated microarrays using shrinkage
correlation coefficient, BMC Bioinformatics. |
|
Zhong H. and Hung Y.S., Multi-stage 3D reconstruction under circular motion, Image and Vision Computing. 2007, 25: 1814-1823. |
|
Researcher
: Ji F |
|
List of Research Outputs |
|
Ji F., Xu J. and Lai P.T., A fringing-capacitance model of deep-submicron MOSFET with high-k gate dielectric, Microelectronics Reliability. 2008, 48: 693-697. |
|
Ji
F., Xu J.,
Lai P.T., Li C. and Guan J.G., Electrical
Properties of HfTiON Gate-Dielectric Metal-Oxide-Semiconductor Capacitors
with Different Si-Surface Nitridations, Applyed Physics Letters. 2007,
91: 05 |
|
Xu J.,
Ji F., Li C., Guan J.G. and Liu Y.R.,
Improved Electrical Properties of Metal-Oxide-Semiconductor Capacitor with
HfTiON Gate Dielectric by Using HfSiON Interlayer, Applied Physics Letters.
2007, 91: 15 |
|
Xu J., Ji F. and Lai P.T., Influence of Sidewall Spacer on Threshold Voltage of MOSFET with High-k Gate Dielectric, Microelectronics Reliability. 2008, 48: 181-186. |
|
Researcher
: Jian L |
|
List of Research Outputs |
|
Chau K.T., Zhang D., Jiang J. and Jian L., Transient analysis of coaxial magnetic gears using finite element co-modeling, Magnetism and Materials Conference. 2007, CD-ROM. |
|
Chau
K.T., Zhang D., Jiang J. and Jian L., Transient analysis of
coaxial magnetic gears using finite element comodeling, AIP Journal of
Applied Physics. 2008, 103(7): |
|
Jian L., Chau K.T., Zhang D., Jiang J. and Wang Z., A magnetic-geared outer-rotor permanent-magnet brushless machine for wind power generation, IEEE Industry Applications Society Annual Meeting. 2007, CD-ROM. |
|
Jian L. and Chau K.T., An integrated halbach-magnetic-geared permanent-magnet motor, Magnetism and Materials Conference. 2007, CD-ROM. |
|
Liu C., Chau K.T., Jiang J. and Jian L., Design of a new outer-rotor permanent magnet hybrid machine for wind power generation, IEEE Transactions on Magnetics. 2008, 44(6): 1494-1497. |
|
Liu X., Chau K.T., Jiang J. and Jian L., Analysis of concentric magnetic gears using three dimensional scalar magnetic potential finite element method, IEEE International Magnetics Conference. 2008, CD-ROM. |
|
Researcher
: Jiang J |
|
List of Research Outputs |
|
Chau K.T., Gong Y. and Jiang J., A hybrid dual-memory motor, IEEE International Magnetics Conference. 2008, CD-ROM. |
|
Chau K.T., Zhang D., Jiang J. and Jian L., Transient analysis of coaxial magnetic gears using finite element co-modeling, Magnetism and Materials Conference. 2007, CD-ROM. |
|
Chau
K.T., Zhang D., Jiang J. and Jian L., Transient analysis of
coaxial magnetic gears using finite element comodeling, AIP Journal of
Applied Physics. 2008, 103(7): |
|
Jian L., Chau K.T., Zhang D., Jiang J. and Wang Z., A magnetic-geared outer-rotor permanent-magnet brushless machine for wind power generation, IEEE Industry Applications Society Annual Meeting. 2007, CD-ROM. |
|
Liu C., Chau K.T., Jiang J., Liu X. and Wang Z., Design and control of a doubly-excited permanent-magnet brushless integrated-starter-generator for hybrid electric vehicles, IEEE Industry Applications Society Annual Meeting. 2007, CD-ROM. |
|
Liu C., Chau K.T., Jiang J. and Jian L., Design of a new outer-rotor permanent magnet hybrid machine for wind power generation, IEEE Transactions on Magnetics. 2008, 44(6): 1494-1497. |
|
Liu X., Chau K.T., Jiang J. and Jian L., Analysis of concentric magnetic gears using three dimensional scalar magnetic potential finite element method, IEEE International Magnetics Conference. 2008, CD-ROM. |
|
Niu S., Chau K.T. and Jiang J., Analysis of eddy-current loss in a double-stator cup-rotor PM machine, IEEE International Magnetics Conference. 2008, CD-ROM. |
|
Niu S., Chau K.T., Zhang D., Jiang J. and Wang Z., Design and control of a doubly-stator permanent-magnet motor drive for electric vehicles, IEEE Industry Applications Society Annual Meeting. 2007, CD-ROM. |
|
Niu S., Chau K.T., Zhang D. and Jiang J., Transient analysis of a double-stator permanent magnet brushless motor drive with scalar control, Magnetism and Materials Conference. 2007, CD-ROM. |
|
Wang
J., Chau K.T., Jiang J. and Yu C., Design and analysis of a
transverse flux permanent magnet machine using three dimensional scalar
magnetic potential finite element method, AIP Journal of Applied Physics.
2008, 103(7): |
|
Wang J., Chau K.T. and Jiang J., Design and analysis of a transverse flux permanent magnet machine using three dimensional scalar magnetic potential finite element method, Magnetism and Materials Conference. 2007, CD-ROM. |
|
Yu
C., Chau K.T., Liu X. and Jiang J., A flux-mnemonic permanent
magnet brushless motor for electric vehicles, AIP Journal of Applied
Physics. 2008, 103(7): |
|
Yu C., Chau K.T., Liu X. and Jiang J., A flux-mnemonic permanent magnet brushless motor for electric vehicles, Magnetism and Materials Conference. 2007, CD-ROM. |
|
Researcher
: Jin L |
|
List of Research Outputs |
|
Jin
L., Wang J., |
|
Jin L., Choy W.C.H., Leung Y.P., Yuk T.T.I., Ong H.C. and Wang J.B., Synthesis and Analysis of abnormal Wurtzite ZnSe nanowheels, Journal Apply Physics. 2007, 102: 044302. |
|
Jin L., Choy W.C.H., Leung Y.P., Yuk T.T.I., Ong H.C. and Wang J.B., Synthesis and Analysis of abnormal Wurtzite ZnSe nanowheels, Virt. J. Nanoscale Sc. Technol.. 2007, 044302. |
|
Jin
L., Wang J., |
|
Liu S., Choy W.C.H., Jin L., Leung Y.P., Zheng G., wang J. and Soh A.K., Triple-crystal Zinc Selenide Nanobelts, J. Physical Chemistry C. 2007, 111: 9055-9059. |
|
Researcher
: Kong Z |
|
List of Research Outputs |
|
Kong Z., Kwok Y.K. and Wang J., Game Theoretic Packet Scheduling to Combat Non-Cooperativeness in Wireless Mesh Networks, Proceedings of The Second IEEE International Workshop on Wireless Mesh and Ad Hoc Networks (WiMAN 2008), in conjunction with the 28th International Conference on Distributed Computing Systems (ICDCS 2008), Beijing, China. 2008. |
|
Kong Z.,
Kwok Y.K. and Wang J., On the Impact of Selfish
Behaviors in Wireless Packet Scheduling, Proceedings of the IEEE
International Conference on Communications (ICC 2008), |
|
Researcher
: Kuo PP |
|
List of Research Outputs |
|
Kuo P.P., Chui P.C. and Wong K.K.Y., A Comprehensive Study on Crosstalk Suppression Techniques in Fiber Optical Parametric Amplifier by Modulation format, IEEE J. on Selected Topics in Quantum Electronics. 2008, vol. 14, no. 3: pp. 659-665. |
|
Kuo P.P., Chui P.C. and Wong K.K.Y., Comparison on Crosstalk
Tolerance of RZ-DPSK and RZ-OOK Modulation Format in Fiber Optical Parametric
Amplifier, European Conf. on Optical Communications. |
|
Kuo
P.P., Chui
P.C. and Wong K.K.Y.,
Multi-channel Ultrawideband Monocycle Pulse Generation via Cross Phase
Modulation and Spectral Filtering, Optoelectronics and Comm. Conference.
|
|
Kuo P.P., Shimizu K., Chui P.C. and Wong K.K.Y., Receiver sensitivity improvement for ON-OFF keying signal by using optical parametric amplifier and balanced detection, 2008 IEEE/LEOS Winter Topical Meetings. 2008. |
|
Kuo P.P., Chui P.C. and Wong K.K.Y., Simultaneous Optical Delay and NRZ-RZ Format Conversion via Cross-Polarization Modulation and Pulse Pre-Chirping, Conf. on Lasers & Electro-Optics. 2008. |
|
Kuo P.P., Chui P.C. and Wong K.K.Y., Tunable Repetition-rate
Ultrawideband Monocycle Pulse Generation by using Optical Parametric
Amplifier, Optoelectronics and Comm. Conf.. |
|
Lai
M.F., Kuo P.P. and Wong K.K.Y., All-Optical XOR Gate using
Fiber Optical Parametric Amplifier, Optoelectronics and Comm. Conf.. |
|
Wong K.K.Y., Kuo P.P., Lui G.W. and Chen L.K., Reduction of Nonlinear Crosstalk in Fiber OPAs, 2008 IEEE/LEOS Winter Topical Meetings. 2008. |
|
Researcher
: Kuo PP |
|
List of Research Outputs |
|
Kuo P.P., Chui P.C. and Wong K.K.Y., A Comprehensive Study on Crosstalk Suppression Techniques in Fiber Optical Parametric Amplifier by Modulation format, IEEE J. on Selected Topics in Quantum Electronics. 2008, vol. 14, no. 3: pp. 659-665. |
|
Kuo P.P., Chui P.C. and Wong K.K.Y., Comparison on Crosstalk
Tolerance of RZ-DPSK and RZ-OOK Modulation Format in Fiber Optical Parametric
Amplifier, European Conf. on Optical Communications. |
|
Kuo
P.P., Chui
P.C. and Wong K.K.Y.,
Multi-channel Ultrawideband Monocycle Pulse Generation via Cross Phase
Modulation and Spectral Filtering, Optoelectronics and Comm. Conference.
|
|
Kuo P.P., Shimizu K., Chui P.C. and Wong K.K.Y., Receiver sensitivity improvement for ON-OFF keying signal by using optical parametric amplifier and balanced detection, 2008 IEEE/LEOS Winter Topical Meetings. 2008. |
|
Kuo P.P., Chui P.C. and Wong K.K.Y., Simultaneous Optical Delay and NRZ-RZ Format Conversion via Cross-Polarization Modulation and Pulse Pre-Chirping, Conf. on Lasers & Electro-Optics. 2008. |
|
Kuo P.P., Chui P.C. and Wong K.K.Y., Tunable Repetition-rate
Ultrawideband Monocycle Pulse Generation by using Optical Parametric
Amplifier, Optoelectronics and Comm. Conf.. |
|
Lai
M.F., Kuo P.P. and Wong K.K.Y., All-Optical XOR Gate using
Fiber Optical Parametric Amplifier, Optoelectronics and Comm. Conf.. |
|
Wong K.K.Y., Kuo P.P., Lui G.W. and Chen L.K., Reduction of Nonlinear Crosstalk in Fiber OPAs, 2008 IEEE/LEOS Winter Topical Meetings. 2008. |
|
Researcher
: Kwan HK |
|
List of Research Outputs |
|
Ho A.Y.H., Lei C.U., Kwan H.K. and Wong N., Global optimization of common subexpressions for multiplierless synthesis of multiple constant multiplications, Proc. 13th Asia and South Pacific Design Automation Conference ASP-DAC. 2008, 119-124. |
|
Kwan H.K., Lui S.H., Lei C.U., Liu Y., Wong N. and Ho K.L., Design of Hybrid Continuous-Time Discrete-Time Delta Modulators, Proc. IEEE Int. Symp. Circuits Syst. ISCAS. 2008, 1224-1227. |
|
Lei C.U., Cheung C.M., Kwan H.K. and Wong N., Efficient complex continuous-time IIR filter design via generalized vector fitting, Proc. IAENG International Conference on Electrical Engineering. 2008, 1393-1398. |
|
Lei C.U., Kwan H.K., Liu Y. and Wong N., Efficient linear macromodeling via least-squares response approximation, Proc. IEEE Int. Symp. Circuits Syst. ISCAS. 2008, 2993-2996. |
|
So W.K., Cheung W.T., Liu Y., Kwan H.K. and Wong N., Design and optimization of highly linear CMOS low noise amplifiers via geometric programming, Proc. Intl. Conf. on ASIC (ASICON). 2007. |
|
Researcher
: Kwan SK |
|
List of Research Outputs |
|
Xu W., Chang C., Hung Y.S., Kwan S.K. and Fung P.C.W., Order statistics correlation coefficient as a novel association measurement with applications to biosignal analysis, IEEE Transactions on Signal Processing. IEEE, 2007, 55: 5552-5563. |
|
Researcher
: Kwok OCH |
|
List of Research Outputs |
|
Lai
M.F., Kwok O.C.H., Yuk T.T.I. and Wong K.K.Y., Picosecond All-Optical
Logic Gates (XOR, OR, NOT and AND) in a Fiber Optical Parametric Amplifier, Optical
Fiber Comm. Conference. |
|
Researcher
: Kwok TO |
|
List of Research Outputs |
|
Kwok T.O. and Kwok Y.K., Design and Evaluation of Parallel String Matching Algorithms for Network Intrustion Detection Systems, Proceedings of IFIP International Conference on Network and Parallel Computing (NPC 2007), Dalian, China. 2007. |
|
Kwok T.O. and Kwok Y.K., On the Design of a SoPC Based Multi-Core Embedded System, Proceedings of the 1st International Workshop on Frontiers in Complex, Intelligent and Software Intensive Systems (FCISIS-2008), in conjunction with International Conference on Complex, Intelligent and Software Intensive Systems (CISIS-2008), Polytechnic University of Catalonia, Barcelona, Spain. 2008. |
|
Kwok T.O. and Kwok Y.K., On the Design, Control, and Use of a Reconfigurable Heterogeneous Multi-Core System-on-a-Chip, Proceedings of the 17th International Heterogeneity in Computing Workshop (HCW 2008), in conjunction with the 22nd IEEE International Parallel and Distributed Processing Symposium (IPDPS 2008), Miami, Florida, USA. 2008. |
|
List of Research Outputs |
|
Kong Z., Kwok Y.K. and Wang J., Game Theoretic Packet Scheduling to Combat Non-Cooperativeness in Wireless Mesh Networks, Proceedings of The Second IEEE International Workshop on Wireless Mesh and Ad Hoc Networks (WiMAN 2008), in conjunction with the 28th International Conference on Distributed Computing Systems (ICDCS 2008), Beijing, China. 2008. |
|
Kong
Z., Kwok Y.K. and Wang J., On the Impact of Selfish
Behaviors in Wireless Packet Scheduling, Proceedings of the IEEE
International Conference on Communications (ICC 2008), |
|
Kwok T.O. and Kwok Y.K., Design and Evaluation of Parallel String Matching Algorithms for Network Intrustion Detection Systems, Proceedings of IFIP International Conference on Network and Parallel Computing (NPC 2007), Dalian, China. 2007. |
|
Kwok T.O. and Kwok Y.K., On the Design of a SoPC Based Multi-Core Embedded System, Proceedings of the 1st International Workshop on Frontiers in Complex, Intelligent and Software Intensive Systems (FCISIS-2008), in conjunction with International Conference on Complex, Intelligent and Software Intensive Systems (CISIS-2008), Polytechnic University of Catalonia, Barcelona, Spain. 2008. |
|
Kwok T.O. and Kwok Y.K., On the Design, Control, and Use of a Reconfigurable Heterogeneous Multi-Core System-on-a-Chip, Proceedings of the 17th International Heterogeneity in Computing Workshop (HCW 2008), in conjunction with the 22nd IEEE International Parallel and Distributed Processing Symposium (IPDPS 2008), Miami, Florida, USA. 2008. |
|
Kwok Y.K., Autonomic Peer-to-Peer Systems: Incentive and Security Issues, In: Mieso K. Denko, Laurence T. Yang, and Yan Zhang , Autonomic Computing and Networking. Springer, 2008. |
|
Kwok
Y.K., Editorial Board Member, International Journal of Sensor Networks. |
|
Kwok
Y.K., Embedded Reconfigurable Computing:
Design and Use of a Heterogeneous Multi-Core SoC (System-on-a-Chip), Computer
Science and Communications (CSC) Research Unit, Faculty of Sciences,
Technology and Communications, |
|
Kwok
Y.K., Game Theoretic Resource Allocation:
Mobile Data Access, P2P Streaming, and Wireless Packet Scheduling, Computer
Science and Communications (CSC) Research Unit, Faculty of Sciences,
Technology and Communications, |
|
Kwok Y.K., Game Theoretic Scheduling of Grid Computations, In: Rajkumar Buyya and Kris Bubendorfer , Market Oriented Grid Computing. John Wiley & Sons, 2008. |
|
Kwok
Y.K., On Game Theoretic Resource Allocation, |
|
Kwok Y.K., Peer-to-Peer Systems, In: Hossein Bidgoli , The Handbook of Technology Management. John Wiley & Sons, 2008. |
|
Kwok
Y.K., Selfishness in Grid Computing: Game
Theoretic Analysis and Algorithms, Computer Science and Communications
(CSC) Research Unit, Faculty of Sciences, Technology and Communications, |
|
Kwok
Y.K., Session Chairman, “Applications:
Sensors,” The 22nd IEEE International Parallel and Distributed Processing
Symposium (IPDPS 2008), |
|
Kwok Y.K., Session Chairman, “Sensor Networks and Multi-hop Communications,” The Second IEEE International Workshop on Wireless Mesh and Ad Hoc Networks (WiMAN 2008), in conjunction with the 28th International Conference on Distributed Computing Systems (ICDCS 2008), Beijing, China. 2008. |
|
Kwok
Y.K., Subject Area Editor (Peer-to-Peer
Computing), Journal of Parallel and Distributed Computing.
|
|
Kwok Y.K., Technical Program Committee Member, The 2007 IFIP International Conference on Network and Parallel Computing (NPC 2007), Dalian, China. 2007. |
|
Kwok
Y.K., Technical Program Committee Member, The
2008 IASTED International Conference on Parallel and Distributed Computing
and Networks (PDCN 2008), |
|
Kwok Y.K., Technical Program Committee Member, The 2008 IEEE International Conference on Communications (ICC 2008), Wireless Networking Symposium, Beijing, China. 2008. |
|
Kwok Y.K., Technical Program Committee Member, The IEEE Asia-Pacific Services Computing Conference 2007 (APSCC 2007), Tsukuba Science City, Japan. 2007. |
|
Kwok Y.K., Technical Program Committee Member, The IEEE Globecom 2007 Ad-hoc and Sensor Networking Symposium, Washington, D. C., USA. 2007. |
|
Kwok
Y.K., Technical Program Committee Member, The
IEEE International Conference on Sensor Networks, Ubiquitous, and Trustworthy
Computing (SUTC2008), |
|
Kwok Y.K., Technical Program Committee Member, The Second IEEE LCN Workshop on Network Measurements (WNM 2007), in conjunction with The 32nd Annual IEEE Conference on Local Computer Networks (LCN 2007), Dublin, Ireland. 2007. |
|
Kwok
Y.K., Technical Program Committee Member, The
Seventh |
|
Kwok Y.K., Technical Program Committee Member, The Symposium on Wireless Local and Personal Area Networks associated with International Wireless Communication and Mobile Computing Conference (IWCMC 2007), Turtle Bay Resort, Honolulu, Hawaii, USA. 2007. |
|
Kwok Y.K., Technical Program Committee Member, The Workshop on Optimization Issues in Grid and Parallel Computing Environments, as part of The 2008 International Conference High Performance Computing & Simulation (HPCS 2008) and in conjunction with The 22nd European Conference on Modelling and Simulation (ECMS 2008), Nicosia, Cyprus. 2008. |
|
Leung K.H. and Kwok Y.K., On Localized Application-Driven Topology Control for Energy Efficient Wireless Peer-to-Peer File Sharing, IEEE Transactions on Mobile Computing. IEEE Computer Society, 2008, 7(1): 66-80. |
|
Lin X. and Kwok Y.K., An Energy Efficient Communications over Rayleigh Fading Channel with Delivery Rate and Delay Constraints in Wireless Sensor Networks, Proceedings of the First ICPP 2007 Workshop on Ubiquitous Computing for Parallel and Distributed Systems (uPADS 2007), Xian, China. 2007. |
|
Lin X., Kwok Y.K. and Wang H., Energy Efficient Resource Management Techniques in Wireless Sensor Networks, In: Sudip Misra, Isaac Woungang, and Subhas C. Misra , Handbook of Wireless Ad Hoc and Sensor Network. Springer, 2008. |
|
Lin X., Kwok Y.K. and Wang H., On Channel Adaptive Energy Management with Available Bandwidth Estimation in Wireless Sensor Network, Wireless Communications and Mobile Computing Journal. Wiley, 2007, 7(7): 877-892. |
|
Lin X., Kwok Y.K. and Wang H., On Improving the Energy Efficiency of Wireless Sensor Networks under Time-Varying Environment, Proceedings of the 32nd IEEE Conference on Local Computer Networks (LCN 2007), Clontarf Castle, Dublin, Ireland. 2007. |
|
Liu Y., Kwok Y.K. and Wang J., Downlink TCP Performance Under Cross Layer Rate and Power Allocation in Infrastructure TH-PPM UWB Networks, Journal of Supercomputing. 2008, 44(3): 199-216. |
|
Liu Y., Kwok Y.K. and Wang J., High Performance Power Control and Opportunistic Fair Scheduling in TH-PPM UWB Ad Hoc Multimedia Networks, Journal of Supercomputing. 2008, 43(1): 59-76. |
|
Yeung K.H. and Kwok Y.K., Energy Efficient Media Streaming in Wireless Hybrid Peer-to-Peer Systems, Proceedings of the 22nd IEEE International Parallel and Distributed Processing Symposium (IPDPS 2008), Miami, Florida, USA. 2008. |
|
Yeung K.H. and Kwok Y.K., Game Theoretic Peer Selection for Resilient Peer-to-Peer Media Streaming Systems, Proceedings of the 28th International Conference on Distributed Computing Systems (ICDCS 2008), Beijing, China. 2008. |
|
Yeung K.H. and Kwok Y.K., Game-Theoretic Scalable Peer-to-Peer Media Streaming, Proceedings of the 22nd IEEE International Parallel and Distributed Processing Symposium (IPDPS 2008), Miami, Florida, USA. 2008. |
|
Researcher
: Lai HW |
|
List of Research Outputs |
|
Lai H.W., Fung S.K., Lam H.Y. and Lee W.K., Disaggregate Loads by Particle Swarm Optimization Method for Non-intrusive Load Monitoring, International Conference on Electrical Engineering. 2007, ICEE-672. |
|
Researcher
: Lai MF |
|
List of Research Outputs |
|
Lai M.F., Lin N. and Wong K.K.Y., All-Optical Half-Adder by
Using a Single-Stage Optical Parametric Amplifier, European Conf. on
Optical Communications. |
|
Lai M.F., Kwok C.H. and Wong K.K.Y., All-Optical Signal Regeneration Using Optical Parametric Amplifier, Conf. on Lasers & Electro-Optics. 2008. |
|
Lai M.F., Kuo P.P. and Wong K.K.Y., All-Optical XOR Gate using
Fiber Optical Parametric Amplifier, Optoelectronics and Comm. Conf.. |
|
Lai M.F., Kwok C.H., Yuk T.T.I. and Wong K.K.Y., Picosecond All-Optical Logic Gates (XOR, OR, NOT and AND) in a Fiber Optical Parametric Amplifier, Opt. Fiber Comm. Conf.. 2008. |
|
Lai
M.F., Kwok
O.C.H., Yuk T.T.I. and Wong K.K.Y., Picosecond All-Optical
Logic Gates (XOR, OR, NOT and AND) in a Fiber Optical Parametric Amplifier, Optical
Fiber Comm. Conference. |
|
Researcher
: Lai MF |
|
List of Research Outputs |
|
Lai M.F., Lin N. and Wong K.K.Y., All-Optical Half-Adder by
Using a Single-Stage Optical Parametric Amplifier, European Conf. on
Optical Communications. |
|
Lai M.F., Kwok C.H. and Wong K.K.Y., All-Optical Signal Regeneration Using Optical Parametric Amplifier, Conf. on Lasers & Electro-Optics. 2008. |
|
Lai M.F., Kuo P.P. and Wong K.K.Y., All-Optical XOR Gate using
Fiber Optical Parametric Amplifier, Optoelectronics and Comm. Conf.. |
|
Lai M.F., Kwok C.H., Yuk T.T.I. and Wong K.K.Y., Picosecond All-Optical Logic Gates (XOR, OR, NOT and AND) in a Fiber Optical Parametric Amplifier, Opt. Fiber Comm. Conf.. 2008. |
|
Lai
M.F., Kwok
O.C.H., Yuk T.T.I. and Wong K.K.Y., Picosecond All-Optical
Logic Gates (XOR, OR, NOT and AND) in a Fiber Optical Parametric Amplifier, Optical
Fiber Comm. Conference. |
|
Researcher
: Lai PT |
|
Project Title: |
High-performance organic thin-film transistors |
|
Investigator(s): |
Lai PT |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
|
Start Date: |
01/2005 |
|
Abstract: |
|
To develop single-crystal growth for organic thin films (e.g. pentacene). The single-crystal islands should be as large as possible (at least larger than the channel length between the source and drain to reduce the traps attributed to the grain boundaries; to develop the gate insulator layer in organic FET devices. Besides inducing larger-coverage single-crystal island growth, insulator films with passivated surface can also provide a smoother interface with organic semiconductor for improving the mobility. Moreover, insulator films with higher dielectric constant or smaller thickness can reduce the operating voltage of the devices; to develop organic heterojunction FET devices consisting of n-type and p-type organic semiconductor thin films to deliver higher performance and higher reliability. |
|
Project Title: |
High-Quality Gate Dielectrics for Germanium MISFET's |
|
Investigator(s): |
Lai PT |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
|
Start Date: |
01/2006 |
|
Abstract: |
|
The objectives of this project are to: (1) Develop a high-quality oxynitride gate dielectric for Ge MISFET's with high resistance to metal diffusion, good thickness uniformity and low fixed charge density. (2) Develop an improved understanding of the nature of the Ge/oxynitride interface. (3) From (2), develop efficient wafer surface passivation/nitridation techniques for improved Ge/oxynitride interface. (4) Perform detailed electrical and reliability characterization of Ge MISFET's to study electrical conduction, dielectric breakdown, and time-dependent degradation mechanism; establish correlation among interfacial structures, process conditions, and electrical properties; establish conditions for Ge gate dielectric with interfacial and bulk qualities close to the Si/oxynitride system. |
|
List of Research Outputs |
|
Chen W., Xiang H., Xu Z., Yan B., Vellaisamy A.L.R., Che C.M. and Lai P.T., Improving efficiency of organic photovoltaic cells with pentacene-doped CuPc layer, In: American Institute of Physics, Applied Physics Letters. 2007, 91: 191109. |
|
Choi H.W., Lai P.T. and Chua S.J., Whispering-gallery mode lasing in GaN microdisks, SPIE Newsroom. 2007. |
|
Hui K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., High Performance White LEDs using Fluorescent Microspheres, In: 1st International Conference on White LEDs and Solid State Lighting, 1st International Conference on White LEDs and Solid State Lighting. 2007. |
|
Hui
K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., High Performance White LEDs
using Fluorescent Microspheres, The 1st International Conference on White
LEDs and Solid State Lighting, Tokyo. |
|
Hui
K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Novel Energy-efficient
Solid-state White Light Sources, International Conference on Electrical
Engineering 2007. |
|
Hui K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Polychromatic Emission from Fluorescent-Microsphere-Coated LEDs, 7th International Conference on Nitride Semiconductors. 2008. |
|
Hui
K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Polychromatic Emission from
Fluorescent-Microsphere-Coated LEDs, 7th International Conference on
Nitride Semiconductors, |
|
Hui K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Polychromatic Emission from Fluorescent-Microsphere-Coated LEDs, Physica Status Solidi (c). 2008, 5: 2201. |
|
Hui K.N., Fu W.Y., Leung C.H., Lai P.T. and Wong K.K.Y., Polychromatic Light Emitting Diodes with a Fluorescent Nanosphere Opal Coating, Nanotechnology, NANO/279137/PAP/197637, 2008. 2008. |
|
Hui K.N., Lai P.T. and Choi H.W., Spectral Conversion with fluorescent microspheres for light emitting diodes, Optics Express. 2008, 16: 13. |
|
Ji F., Xu J. and Lai P.T., A fringing-capacitance model of deep-submicron MOSFET with high-k gate dielectric, Microelectronics Reliability. 2008, 48: 693-697. |
|
Ji F.,
Xu J., Lai P.T., Li C. and Guan J.G., Electrical
Properties of HfTiON Gate-Dielectric Metal-Oxide-Semiconductor Capacitors
with Different Si-Surface Nitridations, Applyed Physics Letters. 2007,
91: 05 |
|
Li C., Zou X., Lai P.T., Xu J. and Chan C.L., Effects of Ti Content and Wet N2 Anneal on Ge MOS Capacitors with HfTiO Gate Dielectric, Microelectronics Reliability. 2008, 48: 526-530. |
|
Li
C., Lai P.T., Xu J. and Zou X., Effects of annealing gas on
electrical properties and reliability of Ge MOS capacitors with HfTiON as
gate dielectric, Proceedings of IEEE International Conference on EDSSC.
|
|
Li C., Lai P.T. and Xu J., Improved reliability of Ge MOS capacitor with HfTiON high-k dielectric by using Ge surface pretreatment in wet NO, Microelectronic Engineering. 2007, 84: 2340-2343. |
|
Lin
L. and Lai P.T., Improved
high-field reliability for SiC metal-oxide-semiconductor device by
incorporation of nitrogen into its HfTiO gate dielectric, J. Applied Physics.
2007, 102: 05 |
|
Lin L.M. and Lai P.T., High-k gate stack HfxTi1-xON/SiO2 for SiC MOS devices, Journal of Materials Science: Materials in Electronics. 2008, 19: 894-897. |
|
Liu
Y., Peng J.B. and Lai P.T.,
Photo-response of polymer thin-film transistors based on poly(2-methoxy-5-( |
|
Ng
W.N., Hui K.N., Leung C.H., Lai P.T. and Choi H.W., Fabrication of
Microstructures in GaN Light Emitting Diodes by Microsphere Lithography, International
Conference on Materials for Advanced Technologies 2007. |
|
Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Light Emitting Diodes with Wavelength-Tunable Output, 7th International Conference on Nitride Semiconductors. 2008. |
|
Ng
W.N., Leung C.H., Lai P.T. and Choi H.W., Light Emitting Diodes with
Wavelength-Tunable Output, 7th International Conference on Nitride
Semiconductors, |
|
Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Light-emitting Diodes with Photonic Crystal Grating Fabricated by Microsphere Lithography, 32th Workshop on Compound Semiconductor Devices and Integrated Circuits. 2008. |
|
Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Micro-pixel Light Emitting Diodes with Wavelength-tunable Output, Physica Status Solidi (c). 2008, 5: 2198. |
|
Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Nano-structuring GaN using Microsphere Lithography, J. Vacuum Sci & Tech B. 2008, 26: 76-79. |
|
Ng W.N., Wang X., Leung C.H., Lai P.T. and Choi H.W., Nanopatterning GaN with Microspheres, 7th International Conference on Nitride Semiconductors. 2008. |
|
Ng
W.N., Wang X., Leung C.H., Lai P.T. and Choi H.W., Nanopatterning GaN with
Microspheres, 7th International Conference on Nitride Semiconductors, |
|
Ng W.N., Wang X., Leung C.H., Lai P.T. and Choi H.W., Nanopatterning GaN with Microspheres, Physica Status Solidi (c). 2008, 5: 1615. |
|
Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Nanostructuring GaN using Microsphere Lithohraphy, Journal of Vacuum Science and Technology B. 2008, 26: 76. |
|
Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Photonic Crystal Light-emitting Diodes Fabricated by Microsphere Lithography, Nanotechnology. 2008, 19: 255302. |
|
Ng
W.N., Leung C.H., Lai P.T. and Choi H.W., White LEDs with Variable
Colour Temperature, The 1st International Conference on White LEDs and
Solid State Lighting, Tokyo. |
|
Ng
W.N., Hui K.N., Leung C.H., Lai P.T. and Choi H.W., White LEDs with Variable
Colour Temperature, 1st International Conference on White LEDs and |
|
Tang
W.M., Leung C.H. and Lai P.T., Effects of insulator
thickness on the sensing properties of MISiC Schottky-diode hydrogen sensor, The
4th IEEE International Symposium on Electronic Design, Test and Applications
(DELTA). |
|
Tang
W.M., Cheng K.H., Leung C.H., Lai P.T., Xu J. and Che C.M., Improved Performance for OTFT
with HfTiO2 as gate dielectric by N2O annealing, Proceedings of IEEE
International Conference on EDSSC. |
|
Tang
W.M., Leung C.H. and Lai P.T., Sensing Characteristics of
a Novel MISiC Schottky-Diode Hydrogen Sensor with HfO2 as gate insulator, 2007
International Semiconductor Device Research Symposium (ISDRS). |
|
Xiang H., Xu Z., Vellaisamy A.L.R., Yan B., Chan S.C., Che C.M. and Lai P.T., Deep-red to Near-infrared Electrophosphorescence Based on Bis (8-hydroxyquinolato) Pantinum(II) Complexes , Applied Physics Letters. 2008, 92: 163305-1 to 163305-3. |
|
Xiang H., Xu J., Lai P.T. and Li C., IEEE Trans. Electron Devices, A Physical Model on Scattering at High-k Dielectric/SiO2 Interface of SiGe p-MOSFETs. 2007, ED-54: 3097-3102. |
|
Xiang
H., Lai S.W., Lai P.T. and Che C.M., Phosphorescent Platinum(II)
Materials for OLED Applications, In: Hartmut Yersin, Highly Efficient
OLEDs with Phosphorescent Materials. John Wiley & Sons ( |
|
Xiang H., Xu Z., Vellaisamy A.L.R., Che C.M., Lai P.T., Zeng P.J., Niu F.F., Liu Y.W., Tang W.Q., He C.J. and Niu H.B., Star-configured Carbazole as an Efficient Near-ultraviolet Emitter and Hole-transporting Material for Organic Light-emitting Devices , Applied Physics Letters. 2008, 92: 073305-1 to 073305-3. |
|
Xu J., Li Y.P., Lai P.T., Chen W.B. and Xu S.G., A 2-D Threshold-Voltage Model for Small MOSFET with Quantum-Mechanical Effects, Microelectronics Reliability. 2008, 48: 23-28. |
|
Xu J., Ji F. and Lai P.T., Influence of Sidewall Spacer on Threshold Voltage of MOSFET with High-k Gate Dielectric, Microelectronics Reliability. 2008, 48: 181-186. |
|
Zou X., Xu J., Lai P.T. and Li C., Effects of Post deposited Annealing on Ge MOS Capacitors with Sub-nm EOT HfTiO Gate Dielectric, The 3rd IEEE International Conference of Nano/Micro Engineered and Molecular Systems (NEMS). Sanya, 2008, 362-365. |
|
Researcher
: Lam EYM |
|
Project Title: |
Enhanced mixed document compression with modeling of the transform coefficient distributions |
|
Investigator(s): |
Lam EYM |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Seed Funding for New Staff |
|
Start Date: |
01/2003 |
|
Abstract: |
|
To examine how we can adjust the parameters in the algorithm to adapt it for different image types, in particular we aim at modeling the DCT coefficients, and use that to alter the quantization matrices accordingly. |
|
Project Title: |
Blind deconvolution of bi-level images with applications in machine vision |
|
Investigator(s): |
Lam EYM |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
|
Start Date: |
09/2003 |
|
Abstract: |
|
The impetus of this project originates in our awareness that many machine vision applications require the efficient processing of images of bi-level objects. The information contained in a bi-level image is often rich enough for many inspection and recognition systems. However, all imaging systems cause blurring of the images. With these in mind, we investigate a novel approach to the deblurring of bi-level images that is formulated specifically to take advantage of their unique features. We tackle the general case where the blur is not known beforehand, a problem called blind deconvolution in the literature. Machine vision systems need to be accurate and fast. A powerful mathematical technique called convex optimization is very suitable for such requirements and has been applied to many engineering problems in recent years. We therefore aim at developing a robust blind deconvolution algorithm based on this technque, especially for machine vision applications. |
|
Project Title: |
Image reconstruction and restoration in a multi-lens architecture for machine vision applications |
|
Investigator(s): |
Lam EYM, Ng KP |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
|
Start Date: |
01/2006 |
|
Abstract: |
|
In a machine vision inspection system, the optics often imposes significant physical constraints and incurs substantial cost. Many novel imaging architectures proposed to meet the design requirements compromise on the image quality and therefore are of limited use. One such possibility is a multi-lens system with a wide field of view ideal for the application, but the reconstructed image suffers from blocking artifacts and blurring. The objective of this project is to advance the image reconstruction and restoration to make the multi-lens architecture usable in machine vision applications. |
|
Project Title: |
Imaging system modeling and image synthesis for resolution enhancement in optical lithography |
|
Investigator(s): |
Lam EYM |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
|
Start Date: |
01/2007 |
|
Abstract: |
|
(1) This project aims at advancing the
methodology for image synthesis in the context of resolution enhancement in
optical lithography. It is a special case of the generic image synthesis
problem, due to the constraints that the input must be either binary or
ternary, and the output is binary. Furthermore, the imaging system is
nonlinear. We seek to cast the problem in an optimization framework and solve
it with iterative techniques. In so doing, we expect to make contributions
towards similar image synthesis or image restoration problems in general.(2) From
the application point of view, we aim at advancing the computation of Optical
Proximity Correction (OPC) in photomasks. Because of the distortions
introduced during the imaging process, resolution enhancement techniques such
as OPC -- which warps the mask pattern in a way that counteracts the
distortions -- are needed in order that very small circuit patterns can be
printed on the wafers. While various rule-based, model-based, and hybrid
techniques have been devised for OPC design, they have limited strength in
handling complicated circuits and are often slow to compute. The present
investigation is therefore worthwhile to pursue in order to extend the
usefulness of optical lithography as circuit elements continue to shrink.(3)
The first key issue in the proposal is the modeling of the imaging process.
It consists of primarily two components: the projection optics and the
photoresists. The former involves a partially coherent imaging system, which
often needs to be approximated -- such as with the use of |
|
Project Title: |
Fast and Robust Image Reconstruction of MRI Data from Non-Cartesian K-space Trajectory |
|
Investigator(s): |
Lam EYM |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Seed Funding Programme for Basic Research |
|
Start Date: |
03/2007 |
|
Abstract: |
|
Magnetic Resonance Imaging (MRI) obtains images indirectly from the frequency domain known as k-space, and an image reconstruction process is mandatory before they can be displayed. The speed and accuracy of the reconstruction is critical, especially when the image size is large and near real-time reconstruction is desirable. The problem is especially challenging when the k-space data are not acquired on a Cartesian coordinate, such as the use of spiral trajectory, because the critical step of direct inverse Fourier transform is known to be very time consuming. Our objective in this project is to develop a fast and robust image reconstruction algorithm as an enabling technology to facilitate the use of non-Cartesian trajectory in MRI. There are several key issues involved in the design of image reconstruction algorithms for MRI. First, the medical imaging community has a very low tolerance for image artifacts, as compared with other fields such as video processing. This is understandable given the importance of medical decisions that rely on those images. However, from a technical point of view, that means the reconstruction algorithm must not introduce large errors, even if their occurrence has a low probability. Traditional MR image reconstruction methods, such as Kaiser-Bessel gridding and non-uniform fast Fourier transform (NUFFT) give much larger errors than direct Fourier inversion. Yet, speed is also another design factor. Computing inverse Fourier transform directly, which is at the core of bringing the images from k-space data to the spatial domain, is computationally intensive and impractical for use in MRI machines. A scheme with better performance in speed and accuracy is therefore highly desirable. Another key issue in image reconstruction for MRI is the applicability of the algorithm for various scenarios. MRI can be further divided into different acquisition parameters (e.g. proton-, T1-, T2-, and T2*-weighted), different radiofrequency design (e.g. spin-echo, echo-planar imaging, spiral imaging), and different applications (e.g. function MRI, diffusion tensor imaging, magnetic resonance fluoroscopy). It is desirable to have an image reconstruction algorithm that has the widest use in different variations of MRI. For instance, in MR fluoroscopy, we want to have the reconstructed image updated immediately following the most recent information after each individual data point is acquired, and this imposes a constraint on the algorithm design. The third issue that we consider in this project is the integration of the algorithm in the entire MRI system. We want to go a step beyond proposing a feasible algorithm, and investigate the implementation issues in order to demonstrate convincingly that this is a practical approach. In this respect, we will explore the possible speed-up strategies such as parallelization and implementation in hardware (possibly with field programmable gate array to handle the core computation), and look into minimizing the computational resources that the algorithm will demand. In our view, this is an area not commonly addressed in the research literature, but is deemed important for our purpose of demonstrating the suitability of our algorithm in enabling a wider use of non-Cartesisn trajectory MRI acquisition. |
|
List of Research Outputs |
|
Chan W.S., Lam E.Y.M., Ng K.P. and Mak Y.H.G., Super-resolution reconstruction in a computational compound-eye imaging system, Multidimensional Systems and Signal Processing. 2007, 18: 83-101. |
|
Cheng J., Chung R., Lam E.Y.M., Fung S.M. and Xu Y., Optimization of bit-pairing codification with learning for 3D reconstruction, International Journal of Image and Graphics. 2007, 7: 445-462. |
|
Cheng J., Chung R., Lam E.Y.M., Fung K., Wang F. and Leung W., Structure-light based sensing using a single fixed fringe grating: Fringe boundary detection and 3D reconstruction, IEEE Transactions on Electronics Packaging Manufacturing. 2008, 31: 19-31. |
|
Lam E.Y.M., Associate Editor, IEEE Transactions on Biomedical Circuits and Systems. 2007. |
|
Lam E.Y.M. and Fung S.K., Automatic white balance in digital photography, Single-Sensor Imaging: Methods And Applications For Digital Cameras. CRC Press, 2007. |
|
Lam E.Y.M., Compact and thin multi-lens system for machine vision applications, Image Processing: Machine Vision Applications, volume 6813 of Proceedings of the SPIE. 2008, 6813: 681305. |
|
Liang D., Lam E.Y.M. and Fung S.K., A least squares quantization table method for direct reconstruction of MR images with non-Cartesian trajectory, Journal of Magnetic Resonance. 2007, 188: 141-150. |
|
Liang D., Lam E.Y.M. and Fung S.K., Spiral MRI reconstruction using least squares quantization table, Medical Imaging and Informatics. 2007. |
|
Ng M.C., Wu E.X., Lau H.F., Hu Y., Lam E.Y.M. and Luk K.D.K., Cervical spinal cord BOLD fMRI study: Modulation of functional activation by dexterity of dominant and non-dominant hands., Neuroimage. 831, 2008, 39: 825. |
|
Ng M.C., Hua J., van Zijl P., Yang E., Hu Y., Luk K.D.K. and Lam E.Y.M., Magnetization Transfer (MT) asymmetry in human cervical spinal cord, International Society of Magnetic Resonance in Medicine Annual Meeting. 2008, 3404. |
|
Ng M.K., Lam E.Y.M. and Tong C.S., Superresolution imaging: Theory, algorithms and applications, Multidimensional Systems and Signal Processing. 2007, 18: 57-58. |
|
Shen Y., Lam E.Y.M. and Wong N., A signomial programming approach for binary image restoration by penalized least squares, IEEE Transactions on Circuits and Systems II. 2008, 55: 41-45. |
|
Shu Y., Chung R., Tan Z., Cheng J., Lam E.Y.M., Fung K. and Wang F., Projection optics design for tilted projection of fringe pattern, Optical Engineering. 2008, 47: 053002. |
|
Tang M.Y., Ng M.C. and Lam E.Y.M., Image reconstruction of variable density undersampled EPI images, International Society of Magnetic Resonance in Medicine Annual Meeting. 2008, 3149. |
|
Tang M.Y., Kacher D., Lam E.Y.M., Brodsky M., Jolesz F. and Yang E.S., Multi-modal imaging: Simultaneous MRI and Ultrasound imaging for carotid arteries visualization, 29th International Conference of the IEEE Engineering in Medicine and Biology Society. 2007. |
|
Tang M.Y., Kacher D., Lam E.Y.M., Wong K., Jolesz F. and Yang E., Simultaneous ultrasound and MRI system for breast biopsy: Compatibility assessment and demonstration in a dual modality phantom, IEEE Transactions on Medical Imaging. 2008, 27: 247-254. |
|
Zhang X., Lam E.Y.M., Wu E.X. and Wong K.K.Y., Application of Tikhonov regularization to super-resolution reconstruction of brain MRI image, Lecture Notes in Computer Science . 2008. |
|
Zhang X. and Lam E.Y.M., Regularization in super-resolution reconstruction of biomedical images using gradient vector field, IEEE International Conference on Information Technology and Applications in Biomedicine. 2008, 98-100. |
|
Zhang X., Lam E.Y.M., Wu E.X. and Wong K.K.Y., Regularized super-resolution reconstruction of brain MRI image, Medical Imaging and Informatics. 2007. |
|
Zheng Y., Chan C.C., Li G., Lam E.Y.M. and Yang E.S., A study of femoral artery by twin drivers in Magnetic Resonance Interference Elastography, 29th International Conference of the IEEE Engineering in Medicine and Biology Society. 2007. |
|
Zheng Y., Li G., Chen M., Hu S., Zhao X., Ehman L., Lam E.Y.M. and Yang E.S., Magnetic Resonance Elastography with twin pneumatic drivers for wave compensation, 29th International Conference of the IEEE Engineering in Medicine and Biology Society. 2007. |
|
Researcher
: Lam HY |
|
List of Research Outputs |
|
Lai H.W., Fung S.K., Lam H.Y. and Lee W.K., Disaggregate Loads by Particle Swarm Optimization Method for Non-intrusive Load Monitoring, International Conference on Electrical Engineering. 2007, ICEE-672. |
|
Lam H.Y., Lee W.K. and Fung S.K., To Construct the Taxonomy of Electrical Appliances Based on Voltage-Current Trajectory Load Signature, International Conference on Electrical Engineering. 2007, ICEE-428. |
|
List of Research Outputs |
|
Cheng S.W.K., Lam S.K., Fung S.K. and Ho P., A computational fluid dynamic study of stent graft remodeling after endovascular repair of thoracic aortic dissections, The 22nd Annual Meeting of Western Vascular Society, Kohala Coast, Kona, Hawaii, 8-11 September 2007. |
|
Researcher
: Lam WH |
|
Project Title: |
Personal communications networks |
|
Investigator(s): |
Lam WH |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Other Funding Scheme |
|
Start Date: |
10/1994 |
|
Abstract: |
|
Third generation mobile (wireless) radio communications network. |
|
Researcher
: Lam WLW |
|
List of Research Outputs |
|
Lam W.L.W., Pang C.C. and Yung N.H.C., Vehicle component identification using multi-scale texture couriers, IEEE Transactions on Intelligent Transportation Systems. IEEE, 2007, 8 (4): 681-694. |
|
Researcher
: Lau HF |
|
List of Research Outputs |
|
Ng M.C., Wu E.X., Lau H.F., Hu Y., Lam E.Y.M. and Luk K.D.K., Cervical spinal cord BOLD fMRI study: Modulation of functional activation by dexterity of dominant and non-dominant hands., Neuroimage. 831, 2008, 39: 825. |
|
Wang S., Wu E.X., Tam C.N., Lau H.F., Cheung P.T. and Khong P.L., Axial and radial diffusivities as potential markers for characterization of white matter lesions and predicting lesion outcome in a neonatal rat hypoxia-ischemia model, 2nd Joint Scientific Meeting of The Royal College of Radiologists & Hong Kong College of Radiologists and 15th Annual Scientific Meeting of Hong Kong College of Radiologists, Hong Kong, 27-28 October 2007. |
|
Wang S., Tam C.N., Wu E.X., Lau H.F., Qiu D., Leung L.H.T. and Khong P.L., Longitudinal diffusion tensor MR imaging study of radiation induced white matter damage in a rat model, ISMRM 16th Scientific Meeting & Exhibition, Toronto, Canada, 3-9 May 2008. (Proc Intl Soc Mag Reson Med 2008;16:3268). 2008. |
|
Researcher
: Lau KN |
|
Project Title: |
High capacity wireless LAN chip set design with multiple antenna (SoC design) |
|
Investigator(s): |
Lau KN, Ng TS |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Seed Funding Programme for Applied Research |
|
Start Date: |
10/2003 |
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Abstract: |
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To develop a wireless LAN chipset solution for access point applications with multiple antennas. |
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Project Title: |
Multi-user space-time scheduler design for wireless communications |
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Investigator(s): |
Lau KN |
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Department: |
Electrical & Electronic Engg |
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Source(s) of Funding: |
Seed Funding Programme for Basic Research |
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Start Date: |
02/2004 |
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Abstract: |
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To propose an optimal analytical multi-user space-time scheduler design with respect to a generic utility function; to find the optimal and low complexity space time scheduling algorithms for other QoS-based utility functions (such as total system capacity and proportional fairness) for high-speed wireless multi-media applications with multiple antennas; to derive the optimal space-time scheduler design and partial feedback strategy when the feedback link has a capacity constraint. |
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Researcher
: Lee WK |
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List of Research Outputs |
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Lai H.W., Fung S.K., Lam H.Y. and Lee W.K., Disaggregate Loads by Particle Swarm Optimization Method for Non-intrusive Load Monitoring, International Conference on Electrical Engineering. 2007, ICEE-672. |
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Lam H.Y., Lee W.K. and Fung S.K., To Construct the Taxonomy of Electrical Appliances Based on Voltage-Current Trajectory Load Signature, International Conference on Electrical Engineering. 2007, ICEE-428. |
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Researcher
: Lee YH |
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List of Research Outputs |
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Lam D.C.C., Lee Y.H., Shek K.T. and Pang G.K.H., Puncture Depth and the
Mechanical Stability of Microneedles, International Joint Conference on
Biomedical Engineering Systems and Technologies, Biodevices 2008. |
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Researcher
: Lei CU |
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List of Research Outputs |
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Ho A.Y.H., Lei C.U. and Wong N., A common subexpression sharing approach for multiplierless synthesis of multiple constant multiplications, IAENG Engineering Letters. 2007, 15(1): 149-156. |
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Ho A.Y.H., Lei C.U., Kwan H.K. and Wong N., Global optimization of common subexpressions for multiplierless synthesis of multiple constant multiplications, Proc. 13th Asia and South Pacific Design Automation Conference ASP-DAC. 2008, 119-124. |
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Ho
A.Y.H., Lei C.U. and Wong N., Multiplierless synthesis of
multiple constant multiplications using common subexpression sharing with
genetic algorithm, Advances in Communication Systems and Electrical
Engineering in series of Lecture Notes Electrical Engineering. |
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Kwan H.K., Lui S.H., Lei C.U., Liu Y., Wong N. and Ho K.L., Design of Hybrid Continuous-Time Discrete-Time Delta Modulators, Proc. IEEE Int. Symp. Circuits Syst. ISCAS. 2008, 1224-1227. |
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Lei C.U., Cheung C.M. and Wong N., Efficient 2D linear-phase IIR filter design and application in image filtering, IAENG International Journal of Applied Mathematics. 2007, 37(1): 56-63. |
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Lei C.U., Cheung C.M. and Wong N., Efficient 2D linear-phase IIR
filter design and application in image processing, Advances in
Communication Systems and Electrical Engineering in series of Lecture Notes
Electrical Engineering. |
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Lei C.U., Cheung C.M., Kwan H.K. and Wong N., Efficient complex continuous-time IIR filter design via generalized vector fitting, Proc. IAENG International Conference on Electrical Engineering. 2008, 1393-1398. |
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Lei C.U. and Wong N., Efficient linear macromodeling via discrete-time time-domain vector fitting, Proc. 21st Intl. Conf. on VLSI Design. 2008, 469-474. |
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Lei C.U., Kwan H.K., Liu Y. and Wong N., Efficient linear macromodeling via least-squares response approximation, Proc. IEEE Int. Symp. Circuits Syst. ISCAS. 2008, 2993-2996. |
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Wong N. and Lei C.U., IIR approximation of FIR filters via discrete-time vector fitting, IEEE Transactions on Signal Processing. 2008, 56: 1296-1302. |
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Researcher
: Leung CH |
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List of Research Outputs |
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Hui K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., High Performance White LEDs using Fluorescent Microspheres, In: 1st International Conference on White LEDs and Solid State Lighting, 1st International Conference on White LEDs and Solid State Lighting. 2007. |
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Hui
K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., High Performance White LEDs
using Fluorescent Microspheres, The 1st International Conference on White
LEDs and Solid State Lighting, Tokyo. |
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Hui
K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Novel Energy-efficient
Solid-state White Light Sources, International Conference on Electrical
Engineering 2007. |
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Hui K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Polychromatic Emission from Fluorescent-Microsphere-Coated LEDs, 7th International Conference on Nitride Semiconductors. 2008. |
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Hui
K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Polychromatic Emission from
Fluorescent-Microsphere-Coated LEDs, 7th International Conference on
Nitride Semiconductors, |
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Hui K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Polychromatic Emission from Fluorescent-Microsphere-Coated LEDs, Physica Status Solidi (c). 2008, 5: 2201. |
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Hui K.N., Fu W.Y., Leung C.H., Lai P.T. and Wong K.K.Y., Polychromatic Light Emitting Diodes with a Fluorescent Nanosphere Opal Coating, Nanotechnology, NANO/279137/PAP/197637, 2008. 2008. |
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Ng
W.N., Hui K.N., Leung C.H., Lai P.T. and Choi H.W., Fabrication of
Microstructures in GaN Light Emitting Diodes by Microsphere Lithography, International
Conference on Materials for Advanced Technologies 2007. |
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Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Light Emitting Diodes with Wavelength-Tunable Output, 7th International Conference on Nitride Semiconductors. 2008. |
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Ng
W.N., Leung C.H., Lai P.T. and Choi H.W., Light Emitting Diodes with
Wavelength-Tunable Output, 7th International Conference on Nitride
Semiconductors, |
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Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Light-emitting Diodes with Photonic Crystal Grating Fabricated by Microsphere Lithography, 32th Workshop on Compound Semiconductor Devices and Integrated Circuits. 2008. |
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Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Micro-pixel Light Emitting Diodes with Wavelength-tunable Output, Physica Status Solidi (c). 2008, 5: 2198. |
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Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Nano-structuring GaN using Microsphere Lithography, J. Vacuum Sci & Tech B. 2008, 26: 76-79. |
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Ng W.N., Wang X., Leung C.H., Lai P.T. and Choi H.W., Nanopatterning GaN with Microspheres, 7th International Conference on Nitride Semiconductors. 2008. |
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Ng
W.N., Wang X., Leung C.H., Lai P.T. and Choi H.W., Nanopatterning GaN with
Microspheres, 7th International Conference on Nitride Semiconductors, |
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Ng W.N., Wang X., Leung C.H., Lai P.T. and Choi H.W., Nanopatterning GaN with Microspheres, Physica Status Solidi (c). 2008, 5: 1615. |
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Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Nanostructuring GaN using Microsphere Lithohraphy, Journal of Vacuum Science and Technology B. 2008, 26: 76. |
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Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Photonic Crystal Light-emitting Diodes Fabricated by Microsphere Lithography, Nanotechnology. 2008, 19: 255302. |
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Ng
W.N., Leung C.H., Lai P.T. and Choi H.W., White LEDs with Variable
Colour Temperature, The 1st International Conference on White LEDs and
Solid State Lighting, Tokyo. |
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Ng
W.N., Hui K.N., Leung C.H., Lai P.T. and Choi H.W., White LEDs with Variable
Colour Temperature, 1st International Conference on White LEDs and |
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Tam V.W.L., Kwan A.C.M., Leung C.H., Yeung L.K. and Liao Z., An Interactive Simulation Game to Enhance Learners’ Experience On Mobile Devices , Proceedings of the International Conference on ICT in Teaching and Learning (ICT 2007). 2007. |
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Tang
W.M., Leung C.H. and Lai P.T., Effects of insulator thickness
on the sensing properties of MISiC Schottky-diode hydrogen sensor, The 4th
IEEE International Symposium on Electronic Design, Test and Applications
(DELTA). |
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Tang
W.M., Cheng K.H., Leung C.H., Lai P.T., Xu J. and Che C.M., Improved Performance for OTFT
with HfTiO2 as gate dielectric by N2O annealing, Proceedings of IEEE
International Conference on EDSSC. |
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Tang
W.M., Leung C.H. and Lai P.T., Sensing Characteristics of a
Novel MISiC Schottky-Diode Hydrogen Sensor with HfO2 as gate insulator, 2007
International Semiconductor Device Research Symposium (ISDRS). |
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Researcher
: Leung KC |
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List of Research Outputs |
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Cao Y., Leung K.C. and Li V.O.K., Bandwidth-Guaranteed Fair Scheduling with Effective Excess Bandwidth Allocation for Wireless Networks, IEEE Transactions on Wireless Communications. 2008, 7: 2094-2105. |
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Leung K.C., Wong Lui K.S., Leung K.C. and Baker F., Quality-of-Service Routing with Two Concave Constraints, Proceedings of the IEEE International Conference on Communications. 2008, 5746-5750. |
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Sun Y., Li V.O.K. and Leung K.C., Distributed Opportunistic Scheduling in Multihop Wireless Ad Hoc Networks, Proceedings of the IEEE International Conference on Communications. 2008, 2238-2242. |
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Sun
Y., Li V.O.K. and Leung K.C., Distributed
opportunistic scheduling in multihop wireless ad hoc networks, Proc. IEEE
International Conference on Communications. |
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Researcher
: Leung KC |
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List of Research Outputs |
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Cao Y., Leung K.C. and Li V.O.K., Bandwidth-Guaranteed Fair Scheduling with Effective Excess Bandwidth Allocation for Wireless Networks, IEEE Transactions on Wireless Communications. 2008, 7: 2094-2105. |
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Leung K.C., Wong Lui K.S., Leung K.C. and Baker F., Quality-of-Service Routing with Two Concave Constraints, Proceedings of the IEEE International Conference on Communications. 2008, 5746-5750. |
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Sun Y., Li V.O.K. and Leung K.C., Distributed Opportunistic Scheduling in Multihop Wireless Ad Hoc Networks, Proceedings of the IEEE International Conference on Communications. 2008, 2238-2242. |
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Sun
Y., Li V.O.K. and Leung K.C., Distributed
opportunistic scheduling in multihop wireless ad hoc networks, Proc. IEEE
International Conference on Communications. |
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Researcher
: Leung KH |
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List of Research Outputs |
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Leung K.H. and Kwok Y.K., On Localized Application-Driven Topology Control for Energy Efficient Wireless Peer-to-Peer File Sharing, IEEE Transactions on Mobile Computing. IEEE Computer Society, 2008, 7(1): 66-80. |
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Researcher
: Leung YP |
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List of Research Outputs |
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Jin L., Choy W.C.H., Leung Y.P., Yuk T.T.I., Ong H.C. and Wang J.B., Synthesis and Analysis of abnormal Wurtzite ZnSe nanowheels, Journal Apply Physics. 2007, 102: 044302. |
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Jin L., Choy W.C.H., Leung Y.P., Yuk T.T.I., Ong H.C. and Wang J.B., Synthesis and Analysis of abnormal Wurtzite ZnSe nanowheels, Virt. J. Nanoscale Sc. Technol.. 2007, 044302. |
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Jin
L., Wang J., |
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Leung Y.P., Choy W.C.H. and Yuk T.T.I., Linear Resistive Humidity Sensor Based on Quasi ID ZnSe Nanostructures, Chem. Phy. Lett.. 2008, 457: 198-201. |
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Liu S., Choy W.C.H., Jin L., Leung Y.P., Zheng G., wang J. and Soh A.K., Triple-crystal Zinc Selenide Nanobelts, J. Physical Chemistry C. 2007, 111: 9055-9059. |
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Researcher
: Li C |
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List of Research Outputs |
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Ji F.,
Xu J., Lai P.T., Li C. and Guan J.G., Electrical
Properties of HfTiON Gate-Dielectric Metal-Oxide-Semiconductor Capacitors
with Different Si-Surface Nitridations, Applyed Physics Letters. 2007,
91: 05 |
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Li C., Zou X., Lai P.T., Xu J. and Chan C.L., Effects of Ti Content and Wet N2 Anneal on Ge MOS Capacitors with HfTiO Gate Dielectric, Microelectronics Reliability. 2008, 48: 526-530. |
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Li C., Lai P.T., Xu J. and Zou X., Effects of annealing gas on
electrical properties and reliability of Ge MOS capacitors with HfTiON as
gate dielectric, Proceedings of IEEE International Conference on EDSSC.
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Li C., Lai P.T. and Xu J., Improved reliability of Ge MOS capacitor with HfTiON high-k dielectric by using Ge surface pretreatment in wet NO, Microelectronic Engineering. 2007, 84: 2340-2343. |
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Xiang H., Xu J., Lai P.T. and Li C., IEEE Trans. Electron Devices, A Physical Model on Scattering at High-k Dielectric/SiO2 Interface of SiGe p-MOSFETs. 2007, ED-54: 3097-3102. |
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Xu J.,
Ji F., Li C., Guan J.G. and Liu Y.R.,
Improved Electrical Properties of Metal-Oxide-Semiconductor Capacitor with
HfTiON Gate Dielectric by Using HfSiON Interlayer, Applied Physics Letters.
2007, 91: 15 |
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Zou X., Xu J., Lai P.T. and Li C., Effects of Post deposited Annealing on Ge MOS Capacitors with Sub-nm EOT HfTiO Gate Dielectric, The 3rd IEEE International Conference of Nano/Micro Engineered and Molecular Systems (NEMS). Sanya, 2008, 362-365. |
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Researcher
: Li G |
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Project Title: |
The
Neuroprotective Effect of Coenzyme Q |
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Investigator(s): |
Li G, Yang ES, Jack Jr CR |
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Department: |
Medical Faculty |
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Source(s) of Funding: |
Seed Funding Programme for Basic Research |
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Start Date: |
03/2006 |
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Abstract: |
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Alzheimer's disease (AD) and ischemic
cerebrovascular disease are two main causes of dementia in elderly people.
Recent basic and clinical investigations demonstrate that AD and vascular
dementia (VaD), traditionally considered two independent neurological
disorders, may interact in an additive manner. In clinical studies, the
presence of ischemic lesions enhances the cognitive deficits in patients with
AD pathology. Mutations in the genes of beta-amyloid precursor protein (APP),
presenilin 1 (PS1) and presenilin 2 (PS2) cause familial AD. In transgenic
mice with overexpressed APP, susceptibility to ischemic brain damage caused
by middle cerebral artery occlusion (MCAO) is increased. In AD patients, the
extent of AD pathology is increased if ischemic stroke coexists. Elderly
subjects are more likely to have been demented in life if both AD pathology
and ischemic cerebrovascular disease are present at autopsy than if either is
pathology is found in isolation. Several studies suggest a possible role of
increased oxidative stress and impairment of mitochondrial energy metabolism
in the pathogenesis of both AD and stroke. A number of investigators have
identified a deficiency in the complex VI, cytochrome c oxidase (COX) of the
mitochondrial electron transport chain in AD patients and a reduced activity
of complexes I and III in ischemic conditions. Coenzyme Q10 (CoQ10) is an
essential biological cofactor produced endogenously in the body and provided
in the food chain. As the electron acceptor for mitochondrial complexes I and
II, it has an essential role in cellular energy production as an electron and
proton carrier. Complex I or II dysfunction are found in neurological
disorders such as Parkinson’s disease and Huntington disease. Shults et al.
reported a correlation between mitochondrial CoQ10 level and the biological
activity of complexes I - IV Parkinson’s disease patients who were
administered the highest dose of CoQ10 showed the greatest clinical benefit.
Oral CoQ10 supplementation increases brain mitochondrial concentrations and
exerts neuroprotective effects. A neuroprotective effect of CoQ10 has been
found in various animal models of stroke and this has been attributed to its
role as a potent antioxidant and an oxygen derived free radical scavenger.
This finding has not been universally replicated, however, as Li and his
colleagues found that immediate treatment with CoQ10 via intraperitoneal
injection did not prevent neuronal injuries following global and focal
ischemia. Mitochondrial abnormalities have been found in human AD patients,
and there are a few reports about the therapeutic effect of CoQ |
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Project Title: |
Effect of imbalance of kinases and protein phosphatases on deposit of B amyloid and Tau Pathology in double transgenic APP/PS1 Mice |
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Investigator(s): |
Li G, Yang X, Yang ES |
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Department: |
Medical Faculty |
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Source(s) of Funding: |
Germany/Hong Kong Joint Research Scheme |
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Start Date: |
01/2007 |
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Abstract: |
|
1. To investigate the effect of the
overactivation of GSK-3 on deposit of amyloid and tau pathology in APP/PS1
double transgenic mice 2. To investigate the effect of the suppression of the
two major proteins - phosphatase |
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Researcher
: Li J |
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List of Research Outputs |
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Li J., Yeung L.K. and Chan C.K., Efficient Path Protection in Bi-directional WDM Systems, Computer Networks. Hindawi, 2008. |
|
Researcher
: Li VOK |
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Project Title: |
Information
technology for a 21st Century |
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Investigator(s): |
Li VOK |
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Department: |
Electrical & Electronic Engg |
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Source(s) of Funding: |
Matching Fund for Area of Excellence (AoE) |
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Start Date: |
01/2000 |
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Abstract: |
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To assist the transformation of Hong Kong into an IT society, and as a strong value-added economy within Asia, through active high-impact IT research and development, relevant technology transfer, and quality education for competitiveness. |
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Project Title: |
Applications of wireless communications and data mining |
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Investigator(s): |
Li VOK, Yeung LK, Cheung DWL, Law NWY, Ng KP, Mamoulis N |
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Department: |
Electrical & Electronic Engg |
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Source(s) of Funding: |
Seed Funding for Strategic Research Theme |
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Start Date: |
05/2005 |
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Abstract: |
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Two major sub-themes have been identified, namely, wireless communications, and data mining. This proposal is a collection of eight projects, with three on innovative protocols on wireless communications, and five on applications of data mining techniques, especially in education. |
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Project Title: |
Cross Layer
Optimization for Smart Antenna Based |
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Investigator(s): |
Li VOK, Shen D |
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Department: |
Electrical & Electronic Engg |
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Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
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Start Date: |
09/2005 |
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Abstract: |
|
The main objectives of this project are: To investigating the MAC and routing issues in smart antenna based ad hoc networks. We adopt a cross-layer design strategy to jointly optimize the performance of such systems. To study the interplay of parameters at different layers, such as transmission power, beam pattern, node mobility, node density, packet length, timing parameters, etc. Through our investigation, we expect to produce the following outcomes: • Novel MAC protocols for MANET with smart antenna • Novel routing protocols with enhanced performance with respect to traditional protocols • Simulation results that demonstrate the effectiveness of the proposed schemes |
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Project Title: |
Multihop scheduling in mobile ad hoc networks |
|
Investigator(s): |
Li VOK, Leung KC |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
|
Start Date: |
09/2006 |
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Abstract: |
|
(1) Development of an analytical framework for packet scheduling, routing, and channel error handling issues in multi-hop mobile ad hoc networks (MANETs): Most existing fair scheduling protocols for MANETs are designed without considering channel errors. This assumption is rather unrealistic in error-prone wireless networks. While a few of them do consider channel errors, the compensation mechanisms proposed are rather ad hoc and do not benefit from any analytical studies to substantiate their designs. In addition, we shall study multi-hop scheduling and routing together, while existing work focuses on single-hop scheduling, and performs such scheduling and routing separately. Specifically, we will propose a novel framework that allows us to construct an analytical model to evaluate the performance (such as network throughput, packet delay, and fairness) of a multi-hop packet scheduling protocol in MANETs. This framework will be flexible to accommodate different network and channel interference models, packet scheduling models, and routing models. (2) Design of fair packet scheduling protocols which account for the correlation between packet scheduling and routing: For many MANET applications, there is a need for the provision of quality of service (QoS) guarantees. Fair queueing has been employed to construct a packet scheduler that can provide fairness, minimum throughput, and bounded delay guarantees in ad hoc networks. However, the problem of fair packet scheduling in a multi-hop ad hoc network is still largely unaddressed. Existing fair scheduling protocols devise a transmission schedule based on packet information from neighboring nodes only. The transmission path of a multi-hop flow is assumed known. Thus, existing work typically considers packet scheduling and routing in isolation. Since there is a strong correlation between spatial channel contention and routing, the lack of such considerations may result in significant performance degradations. We will propose novel fair packet scheduling algorithms which account for the correlation between packet scheduling and routing.(3) Development of performance models: We shall obtain analytical and simulation results that demonstrate the flexibility of the proposed framework and the effectiveness of the proposed scheduling protocols. We hope our work will form a foundation upon which further research can be built. |
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List of Research Outputs |
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Cao Y., Leung K.C. and Li V.O.K., Bandwidth-Guaranteed Fair Scheduling with Effective Excess Bandwidth Allocation for Wireless Networks, IEEE Transactions on Wireless Communications. 2008, 7: 2094-2105. |
|
Dong Y., Sui A.F., Yiu S.M., Li V.O.K. and Hui C.K., Providing distributed certificate authority service in cluster-based mobile and hoc networks, Computer Communications. 2007, 30: 2442-2452. |
|
Ge F., Shen D., Pang Y. and Li V.O.K., Super-resolution time delay estimation in multipath environments, IEEE Transactions on Circuits and Systems I. 2007, 54: 1977-1986. |
|
Han S., Wang J., Li V.O.K., Zhou S. and Park K., Optimal diversity performance of space time block codes in correlated distributed MIMO channels, IEEE Transactions on Wireless Communications. 2008, 7: 2106-2118. |
|
Li C.Y., Wai P.K.A. and Li V.O.K., Improving the performance
of optical burst switching with large control overhead, Proc. IEEE
International Conference on Communications. |
|
Li C.Y., Wai P.K.A. and Li V.O.K., Multi-slot batch-transfer
optical packet switch, Proc. IEEE Globecom. |
|
Li V.O.K., ACM/Springer Wireless Networks, 2007. |
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Li V.O.K., Yang G., Shen D. and Shao W., Best Innovation & Research (Open) Bronze Award, Hong Kong ICT Awards 2007, Hong Kong Information Technology Federation Limited (HKITF). 2007. |
|
Li V.O.K., Digital photo frames evolve to offer 3D effects, The Standard, 2008. |
|
Li V.O.K., Digital technology and digital world power (數碼科技與數字大國 in Chinese), Education Bureau, Hong Kong Government, 2008. |
|
Li
V.O.K., Distributed opportunistic scheduling
in multihop wireless ad hoc networks, Institute of computing, |
|
Li
V.O.K., Distributed opportunistic scheduling
in multihop wireless ad hoc networks, |
|
Li
V.O.K., Distributed opportunistic scheduling
in multihop wireless ad hoc networks, |
|
Li
V.O.K., Multiobjective optimized bipartite
matching for resource allocation, Department of Electrical and Computer
Engineering, |
|
Sun
F., Li V.O.K. and Diao Z., Joint dynamic subcarrier
allocation and flow control for real-time streaming over multiuser OFDM
systems, Proc. IEEE Globecom. |
|
Sun F., Li V.O.K., Diao Z. and Xu Z.Y., Medium access control with physical layer assisted link differentiation, IEEE Transactions on Vehicular Technology. 2008, 57: 1255-1271. |
|
Sun
F., Li V.O.K. and Diao Z., Modified bipartite
matching for multiobjective optimization, Proc. IEEE TENCON. |
|
Sun
F., Li V.O.K. and Diao Z., Multiobjective optimized
bipartite matching for resource allocation, Proc. IEEE International
Symposium on Communications and Information Technologies. |
|
Sun Y., Li V.O.K. and Leung K.C., Distributed Opportunistic Scheduling in Multihop Wireless Ad Hoc Networks, Proceedings of the IEEE International Conference on Communications. 2008, 2238-2242. |
|
Sun
Y., Li V.O.K. and Leung K.C., Distributed opportunistic
scheduling in multihop wireless ad hoc networks, Proc. IEEE International
Conference on Communications. |
|
Yang G., Shen D. and Li V.O.K., Adaptive Video Transmission for OFDMA Systems, International Conference on Multimedia & Expo. 2007. |
|
Yang
G., Shen D., Shen D. and Li V.O.K., Adaptive video
transmission for OFDM systems, Proc. IEEE International Conference on
Multimedia and Expo. |
|
Zhang X., Zhang L., Shan X.M. and Li V.O.K., An adaptive resource-based probabilistic search algorithm for P2P networks, IEICE Transactions. 2007, E90-B: 1631-1639. |
|
Zhang X., Hong J., Zhang L., Shan X.M. and Li V.O.K., CP-TDMA: Coloring- and probability-based TDMA scheduling for wireless and hoc networks, IEICE Transactions on Communications. 2008, E91-B: 322-326. |
|
Zhang Z.C. and Li V.O.K., Network-supported layered multicast transport control for streaming media, IEEE Transactions on Parallel and Distributed Systems. 2007, 18: 1332-1344. |
|
Zhao M., Yang Y., Zhu H., Shao W. and Li V.O.K., Priority-based opportunistic MAC Protocol in IEEE 802.11 WLANs, International Journal of Sensor Networks, Special Issue on Wireless Ad Hoc and Sensor Networks. 2008, 3: 84094. |
|
Zhou B., Fu C.P. and Li V.O.K., TFRC Veno: An enhancement
of TCP friendly rate control over wired/wireless networks, Proc.IEEE ICNP.
|
|
Zhou K., Yeung L.K. and Li V.O.K., On performance modeling of TCP New-reno, Globecom 2007. IEEE. |
|
Researcher
: Li Y |
|
List of Research Outputs |
|
Li Y., Hung Y.S. and Lee S., A stratified self-calibration method for circular motion in spite of varying intrinsic parameters, Image and Vision Computing. 2008, 26 No. 6: 731-739. |
|
Li Y., Tang W.K.A. and Hung Y.S., Stratified self-calibration and metric reconstruction for zooming/refocusing circular motion sequence, Journal of Mathematical Imaging and Vision. 2008, 31: 105-118. |
|
Researcher
: Liang C |
|
List of Research Outputs |
|
Chen X., Choy W.C.H., Liang C., Wai P.K.A. and He S., Modifications of the Exciton Lifetime and Internal Quantum Efficiency for Organic Light-Emitting Devices with a Weak/Strong Microcavity, Applied Physics Letters. 2007, 91: 221112-221114. |
|
Liang C., Choy W.C.H. and Huang C.H.U.N.H.U.I., The Electroluminescent Decay Mechanism of Rare-Earth Ions in OLEDs based on a Terbium Complex, IEEE Photo Technol. Lett.. 2007, 19: 1178-1180. |
|
Liang C., Choy W.C.H. and haung C.H., The Electroluminescent Decay Mechanism of Rare-Earth Ions in OLEDs based on a Terbium Complex, IEEE Photon Technology Letter. 2007, 19: 1178-1180. |
|
Researcher
: Liang D |
|
List of Research Outputs |
|
Liang D., Lam E.Y.M. and Fung S.K., A least squares quantization table method for direct reconstruction of MR images with non-Cartesian trajectory, Journal of Magnetic Resonance. 2007, 188: 141-150. |
|
Liang D., Lam E.Y.M. and Fung S.K., Spiral MRI reconstruction using least squares quantization table, Medical Imaging and Informatics. 2007. |
|
Researcher
: Liao Z |
|
List of Research Outputs |
|
Tam V.W.L., Kwan A.C.M., Leung C.H., Yeung L.K. and Liao Z., An Interactive Simulation Game to Enhance Learners’ Experience On Mobile Devices , Proceedings of the International Conference on ICT in Teaching and Learning (ICT 2007). 2007. |
|
Researcher
: Lin L |
|
List of Research Outputs |
|
Lin L.
and Lai P.T., Improved high-field
reliability for SiC metal-oxide-semiconductor device by incorporation of
nitrogen into its HfTiO gate dielectric, J. Applied Physics. 2007,
102: 05 |
|
Researcher
: Lin N |
|
List of Research Outputs |
|
Lai
M.F., Lin N. and Wong K.K.Y., All-Optical Half-Adder by
Using a Single-Stage Optical Parametric Amplifier, European Conf. on
Optical Communications. |
|
Researcher
: Lin X |
|
List of Research Outputs |
|
Lin X. and Kwok Y.K., An Energy Efficient Communications over Rayleigh Fading Channel with Delivery Rate and Delay Constraints in Wireless Sensor Networks, Proceedings of the First ICPP 2007 Workshop on Ubiquitous Computing for Parallel and Distributed Systems (uPADS 2007), Xian, China. 2007. |
|
Lin X., Kwok Y.K. and Wang H., On Channel Adaptive Energy Management with Available Bandwidth Estimation in Wireless Sensor Network, Wireless Communications and Mobile Computing Journal. Wiley, 2007, 7(7): 877-892. |
|
Lin X., Kwok Y.K. and Wang H., On Improving the Energy Efficiency of Wireless Sensor Networks under Time-Varying Environment, Proceedings of the 32nd IEEE Conference on Local Computer Networks (LCN 2007), Clontarf Castle, Dublin, Ireland. 2007. |
|
Researcher
: Lin Y |
|
List of Research Outputs |
|
Lin
Y. and Zhong
J., A Novel Voltage Control Strategy for the DC Micro Grid, The 8th
International Power Engineering Conference (IPEC). |
|
Lin
Y. and Zhong
J., Development and Challenges of Communication Techniques in Power
Systems, The 6th International Conference on Power Transmission and
Distribution Technology. |
|
Lin
Y. and Zhong
J., Energy and Reserve Dispatch in the Integrated Electricity Market with
Sectional Price Offers, IEEE/PES Transmission and Distribution Conference
and Exposition. |
|
Researcher
: Liu C |
|
List of Research Outputs |
|
Chau K.T., Chan C.C. and Liu C., Overview of permanent magnet brushless drives for electric and hybrid electric vehicles, IEEE Transactions on Industrial Electronics. 2008, 55(6): 2246-2257. |
|
Liu C. and Chau K.T., Comparison of stator-permanent-magnet brushless machines, IEEE International Magnetics Conference. 2008, CD-ROM. |
|
Liu C., Chau K.T., Jiang J., Liu X. and Wang Z., Design and control of a doubly-excited permanent-magnet brushless integrated-starter-generator for hybrid electric vehicles, IEEE Industry Applications Society Annual Meeting. 2007, CD-ROM. |
|
Liu C., Chau K.T., Jiang J. and Jian L., Design of a new outer-rotor permanent magnet hybrid machine for wind power generation, IEEE Transactions on Magnetics. 2008, 44(6): 1494-1497. |
|
Liu C. and Yung N.H.C., Multi-scale feature density approximation for object representation and tracking, IASTED Signal Processing, Pattern Recognition and Applications. IASTED, 2008, 6. |
|
Researcher
: Liu C |
|
List of Research Outputs |
|
Chau K.T., Chan C.C. and Liu C., Overview of permanent magnet brushless drives for electric and hybrid electric vehicles, IEEE Transactions on Industrial Electronics. 2008, 55(6): 2246-2257. |
|
Liu C. and Chau K.T., Comparison of stator-permanent-magnet brushless machines, IEEE International Magnetics Conference. 2008, CD-ROM. |
|
Liu C., Chau K.T., Jiang J., Liu X. and Wang Z., Design and control of a doubly-excited permanent-magnet brushless integrated-starter-generator for hybrid electric vehicles, IEEE Industry Applications Society Annual Meeting. 2007, CD-ROM. |
|
Liu C., Chau K.T., Jiang J. and Jian L., Design of a new outer-rotor permanent magnet hybrid machine for wind power generation, IEEE Transactions on Magnetics. 2008, 44(6): 1494-1497. |
|
Liu C. and Yung N.H.C., Multi-scale feature density approximation for object representation and tracking, IASTED Signal Processing, Pattern Recognition and Applications. IASTED, 2008, 6. |
|
Researcher
: Liu K |
|
List of Research Outputs |
|
Liu K., Ni Y., Wu F.F. and Bi T.S., Decentralized Congestion Management for Multilateral Transactions Based on Optimal Resource Allocation, IEEE Transactions on Power Systems. 2007, 22, Issue 4: 1835-1842. |
|
Researcher
: Liu X |
|
List of Research Outputs |
|
Liu C., Chau K.T., Jiang J., Liu X. and Wang Z., Design and control of a doubly-excited permanent-magnet brushless integrated-starter-generator for hybrid electric vehicles, IEEE Industry Applications Society Annual Meeting. 2007, CD-ROM. |
|
Liu X., Chau K.T., Jiang J. and Jian L., Analysis of concentric magnetic gears using three dimensional scalar magnetic potential finite element method, IEEE International Magnetics Conference. 2008, CD-ROM. |
|
Yu
C., Chau K.T., Liu X. and Jiang J., A flux-mnemonic permanent
magnet brushless motor for electric vehicles, AIP Journal of Applied
Physics. 2008, 103(7): |
|
Yu C., Chau K.T., Liu X. and Jiang J., A flux-mnemonic permanent magnet brushless motor for electric vehicles, Magnetism and Materials Conference. 2007, CD-ROM. |
|
Researcher
: Liu Y |
|
List of Research Outputs |
|
Kwan H.K., Lui S.H., Lei C.U., Liu Y., Wong N. and Ho K.L., Design of Hybrid Continuous-Time Discrete-Time Delta Modulators, Proc. IEEE Int. Symp. Circuits Syst. ISCAS. 2008, 1224-1227. |
|
Lei C.U., Kwan H.K., Liu Y. and Wong N., Efficient linear macromodeling via least-squares response approximation, Proc. IEEE Int. Symp. Circuits Syst. ISCAS. 2008, 2993-2996. |
|
Liu
Y., Peng J.B. and Lai P.T., Photo-response of polymer
thin-film transistors based on poly(2-methoxy-5-( |
|
Liu Y., Kwok Y.K. and Wang J., Downlink TCP Performance Under Cross Layer Rate and Power Allocation in Infrastructure TH-PPM UWB Networks, Journal of Supercomputing. 2008, 44(3): 199-216. |
|
Liu Y., Kwok Y.K. and Wang J., High Performance Power Control and Opportunistic Fair Scheduling in TH-PPM UWB Ad Hoc Multimedia Networks, Journal of Supercomputing. 2008, 43(1): 59-76. |
|
Liu Y. and Wong N., Passivity-preserving model order reduction of linear time-varying macromodels, Proc. Intl. Conf. on ASIC (ASICON) (invited paper). 2007. |
|
So W.K., Cheung W.T., Liu Y., Kwan H.K. and Wong N., Design and optimization of highly linear CMOS low noise amplifiers via geometric programming, Proc. Intl. Conf. on ASIC (ASICON). 2007. |
|
Researcher
: Liu Y |
|
List of Research Outputs |
|
Kwan H.K., Lui S.H., Lei C.U., Liu Y., Wong N. and Ho K.L., Design of Hybrid Continuous-Time Discrete-Time Delta Modulators, Proc. IEEE Int. Symp. Circuits Syst. ISCAS. 2008, 1224-1227. |
|
Lei C.U., Kwan H.K., Liu Y. and Wong N., Efficient linear macromodeling via least-squares response approximation, Proc. IEEE Int. Symp. Circuits Syst. ISCAS. 2008, 2993-2996. |
|
Liu
Y., Peng J.B. and Lai P.T., Photo-response of polymer
thin-film transistors based on poly(2-methoxy-5-( |
|
Liu Y., Kwok Y.K. and Wang J., Downlink TCP Performance Under Cross Layer Rate and Power Allocation in Infrastructure TH-PPM UWB Networks, Journal of Supercomputing. 2008, 44(3): 199-216. |
|
Liu Y., Kwok Y.K. and Wang J., High Performance Power Control and Opportunistic Fair Scheduling in TH-PPM UWB Ad Hoc Multimedia Networks, Journal of Supercomputing. 2008, 43(1): 59-76. |
|
Liu Y. and Wong N., Passivity-preserving model order reduction of linear time-varying macromodels, Proc. Intl. Conf. on ASIC (ASICON) (invited paper). 2007. |
|
So W.K., Cheung W.T., Liu Y., Kwan H.K. and Wong N., Design and optimization of highly linear CMOS low noise amplifiers via geometric programming, Proc. Intl. Conf. on ASIC (ASICON). 2007. |
|
Researcher
: Liu Y |
|
List of Research Outputs |
|
Kwan H.K., Lui S.H., Lei C.U., Liu Y., Wong N. and Ho K.L., Design of Hybrid Continuous-Time Discrete-Time Delta Modulators, Proc. IEEE Int. Symp. Circuits Syst. ISCAS. 2008, 1224-1227. |
|
Lei C.U., Kwan H.K., Liu Y. and Wong N., Efficient linear macromodeling via least-squares response approximation, Proc. IEEE Int. Symp. Circuits Syst. ISCAS. 2008, 2993-2996. |
|
Liu
Y., Peng J.B. and Lai P.T., Photo-response of polymer
thin-film transistors based on poly(2-methoxy-5-( |
|
Liu Y., Kwok Y.K. and Wang J., Downlink TCP Performance Under Cross Layer Rate and Power Allocation in Infrastructure TH-PPM UWB Networks, Journal of Supercomputing. 2008, 44(3): 199-216. |
|
Liu Y., Kwok Y.K. and Wang J., High Performance Power Control and Opportunistic Fair Scheduling in TH-PPM UWB Ad Hoc Multimedia Networks, Journal of Supercomputing. 2008, 43(1): 59-76. |
|
Liu Y. and Wong N., Passivity-preserving model order reduction of linear time-varying macromodels, Proc. Intl. Conf. on ASIC (ASICON) (invited paper). 2007. |
|
So W.K., Cheung W.T., Liu Y., Kwan H.K. and Wong N., Design and optimization of highly linear CMOS low noise amplifiers via geometric programming, Proc. Intl. Conf. on ASIC (ASICON). 2007. |
|
Researcher
: Lui SH |
|
List of Research Outputs |
|
Kwan H.K., Lui S.H., Lei C.U., Liu Y., Wong N. and Ho K.L., Design of Hybrid Continuous-Time Discrete-Time Delta Modulators, Proc. IEEE Int. Symp. Circuits Syst. ISCAS. 2008, 1224-1227. |
|
Researcher
: Ma KT |
|
List of Research Outputs |
|
Ma K.T., Cheng K.Y., Wong Lui K.S. and Tam V.W.L., Data Centric Storage with Diffuse Caching in Sensor Networks, Wireless Communications and Mobile Computing Journal. Wiley, 2007, 9: 347 - 356. |
|
Researcher
: Ma S |
|
List of Research Outputs |
|
Chen J., Wu Y.C., Ma S. and Ng T.S., Training Design for Joint CFO and Channel Estimation in Multiuser MIMO OFDM System, Proceedings, IEEE Globecom 2007, Washington DC, 26-30 Nov, 2007. |
|
Chen J., Wu Y.C., Ma S. and Ng T.S., Training design for joint CFO and channel estimation in multiuser MIMO OFDM system, IEEE Globecom 2007. 3008-3012. |
|
Ma S. and Ng T.S., Semi-Blind Time Domain Equalization for MIMO-OFDM systems, IEEE Transactions on Vehicular Technology. 2008, 57(4): 2219-2227. |
|
Pan
X., Ma S., Wang H., Zhou Y. and Ng T.S., Symbol Synchronization Based on
Cyclic Prefix for the Uplink of OFDMA Systems, IEEE TENCON2007. Tai |
|
Pan X., Ma S., Wang H., Zhou Y. and Ng T.S., Symbol Synchronization Based on Cyclic Prefix for the Uplink of OFDMA Systems, Proceedings, IEEE TENCON Taipei, Oct 30 - Nov 2, 2007. |
|
Peng W., Ma S. and Ng T.S., Adaptive QRD-M Detection with Variable Number of Surving Paths for MIMO Systems, Proceedings IEEE International Symposium on Communications and Information Technologies (ISCIT 2007), Sydney, Australia, 16-19 October 2007. |
|
Researcher
: Mak YHG |
|
List of Research Outputs |
|
Chan W.S., Lam E.Y.M., Ng K.P. and Mak Y.H.G., Super-resolution reconstruction in a computational compound-eye imaging system, Multidimensional Systems and Signal Processing. 2007, 18: 83-101. |
|
Researcher
: Ng CW |
|
List of Research Outputs |
|
Ng C.W., Wong N. and Ng T.S., Bit-Stream Adders and Multipliers for Tri-Level Sigma-Delta Modulators, IEEE Transactions on Circuits and Systems II. 2007, 54(12): 1982-1986. |
|
Ng C.W., Wong N. and Ng T.S., Bit-stream adders and multipliers for tri-level sigma-delta modulators, IEEE Trans. Circuits Syst. II. 2007, 54: 1082-1086. |
|
Ng C.W., Wong N. and Ng T.S., Quad-level Bit-stream Adders and Multipliers with Efficient FPGA Implementation, IEE Electronics Letters. 2008, 44(12): 722-723. |
|
Ng C.W., Wong N. and Ng T.S., Tri-Level Bit-Stream Signal Processing Circuits and Applications, 1st International Conference on Signal Processing and Communication Systems, Gold Coast, Australia, 17-19 December 2007. |
|
Ng C.W., Wong N. and Ng T.S., Tri-level bit-stream signal processing circuits and applications, Proc. Intl. Conf. Signal Processing and Communications Systems (ICSPCS 2007). 2007. |
|
Researcher
: Ng KT |
|
List of Research Outputs |
|
Chan S.C., Shum H.Y. and Ng K.T., Image-based rendering and synthesis: technological advances and challenges, IEEE Signal Processing Magazine. 2007, vo. 24, no. 6: pp. 22-33. |
|
Researcher
: Ng MC |
|
List of Research Outputs |
|
Ng M.C., Hua J., van Zijl P., Yang E., Hu Y., Luk K.D.K. and Lam E.Y.M., Magnetization Transfer (MT) asymmetry in human cervical spinal cord, International Society of Magnetic Resonance in Medicine Annual Meeting. 2008, 3404. |
|
Tang M.Y., Ng M.C. and Lam E.Y.M., Image reconstruction of variable density undersampled EPI images, International Society of Magnetic Resonance in Medicine Annual Meeting. 2008, 3149. |
|
Researcher
: Ng TS |
|
Project Title: |
Frequency synchronization and pilot design in MIMO-OFDM systems |
|
Investigator(s): |
Ng TS |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
|
Start Date: |
10/2003 |
|
Abstract: |
|
To develop frequency synchronization algorithms robust against freqency selective fading and white Gaussian noise; to design optimal pilots (training sequences) suitable for the joint purpose of frequency synchronization and channel estimation. |
|
Project Title: |
Adaptive orthogonal space and frequency division multiplexing for wireless local area networks |
|
Investigator(s): |
Ng TS |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
|
Start Date: |
10/2003 |
|
Abstract: |
|
To devise the global optimal channel resource allocation algorithm for downlink (from access point to mobile terminals) MIMO-OFDM transmission for performance improvement. |
|
Project Title: |
Multiple-band planar inductor and VCO for wireless communication systems |
|
Investigator(s): |
Ng TS, Tsang KSH |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Seed Funding Programme for Basic Research |
|
Start Date: |
02/2004 |
|
Abstract: |
|
To design, analyze, characterize, fabricate and measure suitable planar-inductor structures with peak Q value in various frequency bands using CMOS technology with an aim to reduce silicon area; to investigate and incorporate the proposed inductor's architecture in the design of VCOs for wireless communication systems. |
|
Project Title: |
Channel estimation and symbol equalization in MIMO-STC systems |
|
Investigator(s): |
Ng TS, Zeng Y |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
|
Start Date: |
11/2004 |
|
Abstract: |
|
To develop channel estimation algorithms which effectively use the pilot symbols, blind information and rich structure of STC; to devise sub-optimal equalization method (asseme known channel) to combat MAI and ISI and therefore achieve full capacity of MIMO-STC systems. |
|
Project Title: |
Signal processing for intra-chip and inter-chip wireless communications |
|
Investigator(s): |
Ng TS, Zhang YP |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
|
Start Date: |
10/2005 |
|
Abstract: |
|
The main objectives of this project are: (1) To find suitable channel and noise models for the wireless intra- and inter-chip interconnect. (2) To investigate various multiple access and modulation schemes and to evaluate their bit error rates (BERs) and data rates. (3) To find simple but efficient channel estimation and equalization methods whose hardware realizations will most likely meet the size and power consumption requirements. |
|
Project Title: |
Interference cancellation for MIMO-OFDM systems without guard interval |
|
Investigator(s): |
Ng TS |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
|
Start Date: |
10/2006 |
|
Abstract: |
|
(1) To develop interference cancellation
algorithms in the absence of CFO In MIMO-OFDM systems operating over
multi-path fading channels, a guard interval is usually inserted in the
transmission sequence to mitigate the effect of multi-path propagation. The
length of the guard interval is chosen to be longer than the channel duration
to eliminate the inter-symbol interference (ISI) and inter-carrier
interference (ICI). For example, in the IEEE |
|
List of Research Outputs |
|
Chen J., Wu Y.C. and Ng T.S., Best paper award, the 7th International Symposium on Communications and Information Technologies (ISCIT) 2007. 2007. |
|
Chen J., Wu Y.C. and Ng T.S., Optimal CFO and Channel Estimation for OFDMA Uplink Using Importance Sampling, Proceedings, Symposium on Communications and Information Technologies (ISCIT 2007), Sydney, Oct.16 - 19, 2007 (This paper received the Best Conference Paper Award.). 2007. |
|
Chen J., Wu Y.C. and Ng T.S., Optimal CFO and Channel Estimation for OFDMA Uplink Using Importance Sampling, the 7th International Symposium on Communications and Information Technologies (ISCIT) 2007. 977-982. |
|
Chen J., Wu Y.C. and Ng T.S., Optimal Joint CFO and Channel Estimation for Multiuser MIMO-OFDM Systems, IEEE ICC 2008. |
|
Chen
J., Wu Y.C. and Ng T.S., Optimal Joint CFO and
Channel Estimation for Multiuser MIMO-OFDM Systems, Proceedings,
International Conference on Communications (ICC 2008), |
|
Chen J., Wu Y.C. and Ng T.S., Optimal Joint CFO and Channel Estimation in Quasi-Synchronized OFDM Systems, Proceedings, IEEE Globecom 2007, Washington DC, 26-30 Nov, 2007. |
|
Chen J., Wu Y.C. and Ng T.S., Optimal joint CFO and channel estimation in quasi-synchronized OFDM systems, IEEE Globecom 2007. 2816-2820. |
|
Chen J., Wu Y.C., Ma S. and Ng T.S., Training Design for Joint CFO and Channel Estimation in Multiuser MIMO OFDM System, Proceedings, IEEE Globecom 2007, Washington DC, 26-30 Nov, 2007. |
|
Chen J., Wu Y.C., Ma S. and Ng T.S., Training design for joint CFO and channel estimation in multiuser MIMO OFDM system, IEEE Globecom 2007. 3008-3012. |
|
Gao F. .F., Zeng Y., Nallanathan A. and Ng T.S., Robust Subspace Blind Channel Estimation for Cyclic Prefixed MIMO OFDM Systems: Algorithm, Identifiability and Performance Analysis, IEEE Journal on Selected Areas in Communications. 2008, 26(2): 378-388. |
|
Ma S. and Ng T.S., Semi-Blind Time Domain Equalization for MIMO-OFDM systems, IEEE Transactions on Vehicular Technology. 2008, 57(4): 2219-2227. |
|
Ng C.W., Wong N. and Ng T.S., Bit-Stream Adders and Multipliers for Tri-Level Sigma-Delta Modulators, IEEE Transactions on Circuits and Systems II. 2007, 54(12): 1982-1986. |
|
Ng C.W., Wong N. and Ng T.S., Bit-stream adders and multipliers for tri-level sigma-delta modulators, IEEE Trans. Circuits Syst. II. 2007, 54: 1082-1086. |
|
Ng C.W., Wong N. and Ng T.S., Quad-level Bit-stream Adders and Multipliers with Efficient FPGA Implementation, IEE Electronics Letters. 2008, 44(12): 722-723. |
|
Ng C.W., Wong N. and Ng T.S., Tri-Level Bit-Stream Signal Processing Circuits and Applications, 1st International Conference on Signal Processing and Communication Systems, Gold Coast, Australia, 17-19 December 2007. |
|
Ng C.W., Wong N. and Ng T.S., Tri-level bit-stream signal processing circuits and applications, Proc. Intl. Conf. Signal Processing and Communications Systems (ICSPCS 2007). 2007. |
|
Pan
X., Ma S., Wang H., Zhou Y. and Ng T.S., Symbol Synchronization
Based on Cyclic Prefix for the Uplink of OFDMA Systems, IEEE TENCON2007.
Tai |
|
Pan X., Ma S., Wang H., Zhou Y. and Ng T.S., Symbol Synchronization Based on Cyclic Prefix for the Uplink of OFDMA Systems, Proceedings, IEEE TENCON Taipei, Oct 30 - Nov 2, 2007. |
|
Peng W., Ma S. and Ng T.S., Adaptive QRD-M Detection with Variable Number of Surving Paths for MIMO Systems, Proceedings IEEE International Symposium on Communications and Information Technologies (ISCIT 2007), Sydney, Australia, 16-19 October 2007. |
|
Zeng Y., Leyman A.R. and Ng T.S., Joint Semi-Blind Frequency Offset and Channel Estimation for Multi-User MIMO-OFDM Uplink, IEEE Transactions on Communications. 2007, 55(12). |
|
Zheng G., Wong K. .K. and Ng T.S., Achieving Probabilistic
Robustness for Multiuser Simo Uplink with Gaussian Channel Uncertainty, Proceedings
IEEE International Symposium on Communications and Information Technologies,
(ISCIT 2007), |
|
Zheng G., Wong K. .K. and Ng T.S., Throughout Maximization in Linear Multiuser MIMO-OFDM Downlink Systems, IEEE Transactions on Vehicular Technology. 2008, 57(3): 1993-1998. |
|
Zhou
Y., Wang J. and Ng T.S.,
Code Assignment for Downlink Transmission of Broadband OFCDM Systems, PIMRC,
Sept 3-7, 2007, Athen, |
|
Zhou
Y., Wang J. and Ng T.S., Code assignment for
broadband OFCDM systems, IEEE PIMRC 2007. |
|
Zhou Y. and Ng T.S., Joint Iterative Detection for Multi-code MIMO-OFCDM Systems, Proceeding of IEEE ICCSC. IEEE, 2008, 1-5. |
|
Zhou Y. and Ng T.S., Joint iterative Detection for Multi-code MIMO-OFCDM Systems, Proceedings, IEEE International Conference on Communications (ICC 2008), Beijing, May 2008. 26-28: 434-438. |
|
Zhou Y., Wang J., Ng T.S., Higuchi K. and Sawahashi M., OFCDM: a promising broadband wireless access technique, IEEE Communications Magazine. IEEE, 2008, 46: 39-49. |
|
Zhou
Y., Wang J. and Ng T.S., Two Dimensionally Spread
OFCDM Systems for |
|
Zhou Y. .Q., Wang J. and Ng T.S., Two Dimensionally Spread
OFCDM Systems for |
|
Researcher
: Ng WN |
|
List of Research Outputs |
|
Hui K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., High Performance White LEDs using Fluorescent Microspheres, In: 1st International Conference on White LEDs and Solid State Lighting, 1st International Conference on White LEDs and Solid State Lighting. 2007. |
|
Hui
K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., High Performance White LEDs
using Fluorescent Microspheres, The 1st International Conference on White
LEDs and Solid State Lighting, Tokyo. |
|
Hui
K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Novel Energy-efficient
Solid-state White Light Sources, International Conference on Electrical
Engineering 2007. |
|
Hui K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Polychromatic Emission from Fluorescent-Microsphere-Coated LEDs, 7th International Conference on Nitride Semiconductors. 2008. |
|
Hui
K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Polychromatic Emission from
Fluorescent-Microsphere-Coated LEDs, 7th International Conference on
Nitride Semiconductors, |
|
Hui K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Polychromatic Emission from Fluorescent-Microsphere-Coated LEDs, Physica Status Solidi (c). 2008, 5: 2201. |
|
Ng W.N.,
Hui K.N., Leung C.H., Lai P.T. and Choi H.W., Fabrication of
Microstructures in GaN Light Emitting Diodes by Microsphere Lithography, International
Conference on Materials for Advanced Technologies 2007. |
|
Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Light Emitting Diodes with Wavelength-Tunable Output, 7th International Conference on Nitride Semiconductors. 2008. |
|
Ng W.N.,
Leung C.H., Lai P.T. and Choi H.W., Light Emitting Diodes with
Wavelength-Tunable Output, 7th International Conference on Nitride
Semiconductors, |
|
Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Light-emitting Diodes with Photonic Crystal Grating Fabricated by Microsphere Lithography, 32th Workshop on Compound Semiconductor Devices and Integrated Circuits. 2008. |
|
Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Micro-pixel Light Emitting Diodes with Wavelength-tunable Output, Physica Status Solidi (c). 2008, 5: 2198. |
|
Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Nano-structuring GaN using Microsphere Lithography, J. Vacuum Sci & Tech B. 2008, 26: 76-79. |
|
Ng W.N., Wang X., Leung C.H., Lai P.T. and Choi H.W., Nanopatterning GaN with Microspheres, 7th International Conference on Nitride Semiconductors. 2008. |
|
Ng W.N.,
Wang X., Leung C.H., Lai P.T. and Choi H.W., Nanopatterning GaN with
Microspheres, 7th International Conference on Nitride Semiconductors, |
|
Ng W.N., Wang X., Leung C.H., Lai P.T. and Choi H.W., Nanopatterning GaN with Microspheres, Physica Status Solidi (c). 2008, 5: 1615. |
|
Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Nanostructuring GaN using Microsphere Lithohraphy, Journal of Vacuum Science and Technology B. 2008, 26: 76. |
|
Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Photonic Crystal Light-emitting Diodes Fabricated by Microsphere Lithography, Nanotechnology. 2008, 19: 255302. |
|
Ng W.N.,
Leung C.H., Lai P.T. and Choi H.W., White LEDs with Variable
Colour Temperature, The 1st International Conference on White LEDs and
Solid State Lighting, Tokyo. |
|
Ng W.N.,
Hui K.N., Leung C.H., Lai P.T. and Choi H.W., White LEDs with Variable
Colour Temperature, 1st International Conference on White LEDs and |
|
Researcher
: Ng WN |
|
List of Research Outputs |
|
Hui K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., High Performance White LEDs using Fluorescent Microspheres, In: 1st International Conference on White LEDs and Solid State Lighting, 1st International Conference on White LEDs and Solid State Lighting. 2007. |
|
Hui
K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., High Performance White LEDs
using Fluorescent Microspheres, The 1st International Conference on White
LEDs and Solid State Lighting, Tokyo. |
|
Hui
K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Novel Energy-efficient
Solid-state White Light Sources, International Conference on Electrical
Engineering 2007. |
|
Hui K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Polychromatic Emission from Fluorescent-Microsphere-Coated LEDs, 7th International Conference on Nitride Semiconductors. 2008. |
|
Hui
K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Polychromatic Emission from
Fluorescent-Microsphere-Coated LEDs, 7th International Conference on
Nitride Semiconductors, |
|
Hui K.N., Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Polychromatic Emission from Fluorescent-Microsphere-Coated LEDs, Physica Status Solidi (c). 2008, 5: 2201. |
|
Ng W.N.,
Hui K.N., Leung C.H., Lai P.T. and Choi H.W., Fabrication of
Microstructures in GaN Light Emitting Diodes by Microsphere Lithography, International
Conference on Materials for Advanced Technologies 2007. |
|
Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Light Emitting Diodes with Wavelength-Tunable Output, 7th International Conference on Nitride Semiconductors. 2008. |
|
Ng W.N.,
Leung C.H., Lai P.T. and Choi H.W., Light Emitting Diodes with
Wavelength-Tunable Output, 7th International Conference on Nitride
Semiconductors, |
|
Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Light-emitting Diodes with Photonic Crystal Grating Fabricated by Microsphere Lithography, 32th Workshop on Compound Semiconductor Devices and Integrated Circuits. 2008. |
|
Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Micro-pixel Light Emitting Diodes with Wavelength-tunable Output, Physica Status Solidi (c). 2008, 5: 2198. |
|
Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Nano-structuring GaN using Microsphere Lithography, J. Vacuum Sci & Tech B. 2008, 26: 76-79. |
|
Ng W.N., Wang X., Leung C.H., Lai P.T. and Choi H.W., Nanopatterning GaN with Microspheres, 7th International Conference on Nitride Semiconductors. 2008. |
|
Ng W.N.,
Wang X., Leung C.H., Lai P.T. and Choi H.W., Nanopatterning GaN with
Microspheres, 7th International Conference on Nitride Semiconductors, |
|
Ng W.N., Wang X., Leung C.H., Lai P.T. and Choi H.W., Nanopatterning GaN with Microspheres, Physica Status Solidi (c). 2008, 5: 1615. |
|
Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Nanostructuring GaN using Microsphere Lithohraphy, Journal of Vacuum Science and Technology B. 2008, 26: 76. |
|
Ng W.N., Leung C.H., Lai P.T. and Choi H.W., Photonic Crystal Light-emitting Diodes Fabricated by Microsphere Lithography, Nanotechnology. 2008, 19: 255302. |
|
Ng W.N.,
Leung C.H., Lai P.T. and Choi H.W., White LEDs with Variable
Colour Temperature, The 1st International Conference on White LEDs and
Solid State Lighting, Tokyo. |
|
Ng W.N.,
Hui K.N., Leung C.H., Lai P.T. and Choi H.W., White LEDs with Variable
Colour Temperature, 1st International Conference on White LEDs and |
|
Researcher
: Ngai CK |
|
List of Research Outputs |
|
Ngai C.K. and Yung N.H.C., Automated vehicle overtaking based on a multiple-goal reinforcement learning framework, Proceedings of the IEEE ITSC. IEEE, 2007, 6. |
|
Ngai C.K. and Yung N.H.C.,
Fast-maneuvering target seeking based on double-action Q-learning, Proceedings
of Machine Learning and Data Mining in Pattern Recognition. |
|
List of Research Outputs |
|
Ngan Y.T. and Pang G.K.H., Defect Detection of Patterned Objects, In: Clarence W. de Silva, Mechatronics Systems. CRC Press, 2008. |
|
Ngan Y.T., Pang G.K.H. and Yung N.H.C., Motif-based Defect Detection for Patterned Fabric, Pattern Recognition. Elsevier Ltd, Pattern Recognition Society, 2007, 41 (6): 1878-1894. |
|
Ngan Y.T., Pang G.K.H. and Yung N.H.C., Patterned fabric defect detection using a motif-based approach, IEEE International Conference on Image Processing. 2007. |
|
Researcher
: Ni Y |
|
List of Research Outputs |
|
Du Z., Zhang Y., Liu L., Guan Z.H., Ni Y. and Wu F.F., Structure-preserved power-frequency slow dynamics simulation of interconnected ac/dc power systems with AGC consideration, IET Generation, Transmission & Distribution. 2007, 1, Issue 6: 920-927. |
|
Feng D., Gan D., Zhong J. and Ni Y., An Efficient Frontier Analysis for the GenCo Multi-trading Strategy: Part One – Model Analysis, Automation of Electric Power Systems. 2007, 31, No.13: 29-35. |
|
Feng D., Gan D., Zhong J. and Ni Y., An Efficient Frontier Analysis for the GenCo Multi-trading Strategy: Part Two – Algorithm Design, Automation of Electric Power Systems. 2007, 31, No.14: 31-37 & 42. |
|
Feng D., Gan D., Zhong J. and Ni Y., Supplier Asset Allocation in a Pool-based Electricity Market, IEEE Transactions on Power Systems. 2007, 1129-1138. |
|
Liu K., Ni Y., Wu F.F. and Bi T.S., Decentralized Congestion Management for Multilateral Transactions Based on Optimal Resource Allocation, IEEE Transactions on Power Systems. 2007, 22, Issue 4: 1835-1842. |
|
Liu Y., Ni Y., Wu F.F. and Cai B., Existence and Uniqueness of Consistent Conjectural Variation Equilibrium in Electricity Markets, Electrical Power & Energy Systems. 2007, 29: 455-461. |
|
Researcher
: Niu J |
|
List of Research Outputs |
|
Choy W.C.H., Niu J., Li W.L. and Chui P.C., Voltage Controlled Color Tunable Microcavity OLEDs with Enhanced Color Purity, Journal Physics D.. 2008, 41: 025106-025110. |
|
Researcher
: Niu S |
|
List of Research Outputs |
|
Niu S., Chau K.T. and Jiang J., Analysis of eddy-current loss in a double-stator cup-rotor PM machine, IEEE International Magnetics Conference. 2008, CD-ROM. |
|
Niu S., Chau K.T., Zhang D., Jiang J. and Wang Z., Design and control of a doubly-stator permanent-magnet motor drive for electric vehicles, IEEE Industry Applications Society Annual Meeting. 2007, CD-ROM. |
|
Niu S., Chau K.T., Zhang D. and Jiang J., Transient analysis of a double-stator permanent magnet brushless motor drive with scalar control, Magnetism and Materials Conference. 2007, CD-ROM. |
|
Researcher
: Oey CC |
|
List of Research Outputs |
|
Pandey A.K., Nunzi J.M., Wang H., Oey C.C., Djurisic A., Xie M.H., Leung Y.H., Man K.K.Y. and Chan W.K., Reverse biased annealing:
Effective post treatment tool for polymer/nano-composite solar cells, Organic
Electronics. |
|
Researcher
: Pan X |
|
List of Research Outputs |
|
Pan X.,
Ma S., Wang H., Zhou Y. and Ng T.S., Symbol Synchronization Based on
Cyclic Prefix for the Uplink of OFDMA Systems, IEEE TENCON2007. Tai |
|
Researcher
: Pang CC |
|
List of Research Outputs |
|
Lam W.L.W., Pang C.C. and Yung N.H.C., Vehicle component identification using multi-scale texture couriers, IEEE Transactions on Intelligent Transportation Systems. IEEE, 2007, 8 (4): 681-694. |
|
Pang C.C. and Yung N.H.C., A Method for accurate vehicle count in the presence of multiple vehicle occlusions in traffic images, IEEE Transactions on Intelligent Transportation Systems. IEEE, 2007, 8 (3): 441-459. |
|
Pang C.C., Tan Z. and Yung N.H.C., A methodology for resolving severely occluded vehicles based on component-based multi-resolution relational graph matching, Proceedings of IEEE International Conference on Machine Vision. IEEE, 2007, 6. |
|
Researcher
: Pang CC |
|
List of Research Outputs |
|
Lam W.L.W., Pang C.C. and Yung N.H.C., Vehicle component identification using multi-scale texture couriers, IEEE Transactions on Intelligent Transportation Systems. IEEE, 2007, 8 (4): 681-694. |
|
Pang C.C. and Yung N.H.C., A Method for accurate vehicle count in the presence of multiple vehicle occlusions in traffic images, IEEE Transactions on Intelligent Transportation Systems. IEEE, 2007, 8 (3): 441-459. |
|
Pang C.C., Tan Z. and Yung N.H.C., A methodology for resolving severely occluded vehicles based on component-based multi-resolution relational graph matching, Proceedings of IEEE International Conference on Machine Vision. IEEE, 2007, 6. |
|
Researcher
: Pang GKH |
|
Project Title: |
An LED Information System based on the Processing of Digital Images |
|
Investigator(s): |
Pang GKH |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Small Project Funding |
|
Start Date: |
11/2005 |
|
Abstract: |
|
The PI has recently developed and demonstrated the use of visible light in information communication, where the information is transmitted and received through modulation and demodulation. It should be emphasized that this technology is not aimed at substituting the existing and popular techniques of wireless communication, but rather using existing infrastructure of lighting (space illumination, signalling, advertising, signboards, etc.) and incorporating yet another mode of its use, through line-of-sight information communication. In the past, the receiver of the developed visible light communication system is consisted of a photo-transistor. In this proposal, the aim is to examine the use of a micro-digital camera typically found in a modern mobile phone as a receiver. |
|
Project Title: |
Solder paste inspection based on artificial neural networks and fuzzy-neural networks |
|
Investigator(s): |
Pang GKH |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
|
Start Date: |
07/2006 |
|
Abstract: |
|
|
|
List of Research Outputs |
|
Hui T.K. and Pang G.K.H., 3D Measurement of Solder Paste using Two-step Phase Shift Profilometry, IEEE Transactions on Electronics Packaging Manufacturing. 2008. |
|
Hui T.K. and Pang G.K.H., Solder paste inspection using region-based defect detection, publication in International Journal of Advanced Manufacturing Technology . 2008. |
|
Hui T.W. and Pang G.K.H., 3D profile reconstruction of solder paste based on phase, 5th IEEE International Conference on Industrial Informatics. 2007. |
|
Lam D.C.C., Lee Y.H., Shek K.T. and Pang G.K.H., Puncture Depth and the
Mechanical Stability of Microneedles, International Joint Conference on
Biomedical Engineering Systems and Technologies, Biodevices 2008. |
|
Ngan Y.T. and Pang G.K.H., Defect Detection of Patterned Objects, In: Clarence W. de Silva, Mechatronics Systems. CRC Press, 2008. |
|
Ngan Y.T., Pang G.K.H. and Yung N.H.C., Motif-based Defect Detection for Patterned Fabric, Pattern Recognition. Elsevier Ltd, Pattern Recognition Society, 2007, 41 (6): 1878-1894. |
|
Ngan Y.T., Pang G.K.H. and Yung N.H.C., Patterned fabric defect detection using a motif-based approach, IEEE International Conference on Image Processing. 2007. |
|
Pang G.K.H. and Chu M.H., Personalised route selection system in vehicle navigation based on neural-fuzzy technologies, 14th World Congress on Intelligent Transport Systems. 2007. |
|
Pang
G.K.H. and Chu
M.H., Route Selection for Vehicle Navigation and Control, The 33rd
Annual Conference of the Industrial Electronics Society. |
|
Pang G.K.H. and Chu M.H., Route selection for vehicle navigation and control, IEEE International Conference on Industrial Informatics. 2007. |
|
Pang G.K.H., i.LIGHT: Communication Using Visible Light, In: Clarence W. de Silva , Mechatronics Systems. CRC Press, 2008. |
|
Researcher
: Pong MH |
|
List of Research Outputs |
|
Liu C.P., Poon N.K., Pong M.H. and Tse C.K., Low Output Ripple DC–DC Converter Based on an Overlapping Dual Asymmetric Half-Bridge Topology, IEEE Transactions on Power Electronics,. IEEE, 2007, 22: 1956-1963. |
|
Liu C.P., Tse C.K., Poon N.K., Pong M.H. and Lai Y.M., Synthesis of general impedance with simple dc/dc converters for power processing applications, International Journal of Circuit Theory and Applications, 2008. 2008, 275-287. |
|
Pong M.H., Lecture on Electromagnetic Interference in Switching Power supply , National Taiwan University Of Science & Technology. 2007. |
|
Pong
M.H., Technical issues on power converters :
LED lighting, Energy efficiency, control and EMI strategy, Invited lecture
by |
|
Researcher
: Ren J |
|
List of Research Outputs |
|
Ren J., Fung P.C.W., Chang C., Shen G.G., Chan F.H.Y., Liu K.J. and Shen J., A comparative ESR study on blood and tissue nitric oxide concentration during renal ischemia-reperfusion injury , Applied Magnetic Resonance. Springer-Verlag, 2007, 32: 243-255. |
|
Researcher
: Shao W |
|
List of Research Outputs |
|
Li V.O.K., Yang G., Shen D. and Shao W., Best Innovation & Research (Open) Bronze Award, Hong Kong ICT Awards 2007, Hong Kong Information Technology Federation Limited (HKITF). 2007. |
|
Zhao M., Yang Y., Zhu H., Shao W. and Li V.O.K., Priority-based opportunistic MAC Protocol in IEEE 802.11 WLANs, International Journal of Sensor Networks, Special Issue on Wireless Ad Hoc and Sensor Networks. 2008, 3: 84094. |
|
Researcher
: Shen D |
|
Project Title: |
A Software Security Scheme for Networked Embedded Devices |
|
Investigator(s): |
Shen D, Li VOK |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Small Project Funding |
|
Start Date: |
10/2006 |
|
Abstract: |
|
In this research, we investigate the protection of software in embedded devices against piracy of the embedded system. Piracy is a serious problem nowadays. Billions have been lost due to the piracy practice around the world. To protect against piracy for an embedded system, serveral approaches can be adopted. One popular method is to protect the hardware design by making the hardware design hard to copy. This can be achieved by playing tricks on the PCB (printed circuit board) design, or erasing the labels of some important chips. However, this approach has limited effect because nowadays PCB design can be easily copied. The label erasure is not always reliable. As compared to the difficulty of hardware protection, software protection can be achieved through encryption. Once encrypted, the software cannot be utilized by the hacker if without the decryption method. The decryption algorithm and key shall be stored separately and should not be recovered by the hackers. MCU (micro controller unit) or FPGA (field programable gateway array) can be used for this purpose. The security of such an approach depends on the security level of such devices. Unfortunately, MCU can now be easily hacked. FPGA hacking is a little more difficult, which is mainly determined by the complexity of the FPGA device. However, complicated FPGA devices, although quite secure, is relatively expensive. Such an approach is not worthwhile for embedded devices with low-medium cost. In this research, we consider the protection of embedded systems in a networked environment. We consider the scenario of having a centralize server, with which embedded devices are connected through LAN (loca area network). Specifically, we consider the secure distribution of software from the servce to the embedded devices. The software stored at the sever is in encrypted form. The embedded devices store the keys. The key issues are how the server and devices can authenticate each other, and the how the keys can be recovered securely at the devices for the decryption of the encrypted software deliever by the server |
|
List of Research Outputs |
|
Ge F., Shen D., Pang Y. and Li V.O.K., Super-resolution time delay estimation in multipath environments, IEEE Transactions on Circuits and Systems I. 2007, 54: 1977-1986. |
|
Li V.O.K., Yang G., Shen D. and Shao W., Best Innovation & Research (Open) Bronze Award, Hong Kong ICT Awards 2007, Hong Kong Information Technology Federation Limited (HKITF). 2007. |
|
Yang G., Shen D. and Li V.O.K., Adaptive Video Transmission for OFDMA Systems, International Conference on Multimedia & Expo. 2007. |
|
Yang
G., Shen D., Shen D. and Li V.O.K., Adaptive video transmission
for OFDM systems, Proc. IEEE International Conference on Multimedia and
Expo. |
|
Researcher
: Shen GG |
|
Project Title: |
A quad-tuned RF probe for MR studies of mood disorders |
|
Investigator(s): |
|
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Other Funding Scheme |
|
Start Date: |
09/2002 |
|
Abstract: |
|
To develop and test an integrated, high-efficiency, quadruple-tuned RF brain coil and its related accessories. |
|
Project Title: |
Integration of gradient and RF coils using HTS for high resolution MRI |
|
Investigator(s): |
Shen GG |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
|
Start Date: |
12/2003 |
|
Abstract: |
|
To develop and test a package integrating an HTS gradient coil set with a birdcage-type HTS RF coil. |
|
Project Title: |
Tunable loop microstrip array for cardiac MRI at 1.5T and 3T |
|
Investigator(s): |
Shen GG |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
|
Start Date: |
12/2004 |
|
Abstract: |
|
To design a special tunable loop microstrip (TLM) array which can be used for most cardiac applications; to develop a simulation tool which uses full wave finite element method to analyze B1 distribution (coil sensitivity) and nosise distribution, and to optimize the geometry map of array coil; to develop related sequence and testing procedure for this special array for coronary artery disease-related cardiac imaging applications. |
|
List of Research Outputs |
|
Ren J., Fung P.C.W., Chang C., Shen G.G., Chan F.H.Y., Liu K.J. and Shen J., A comparative ESR study on blood and tissue nitric oxide concentration during renal ischemia-reperfusion injury , Applied Magnetic Resonance. Springer-Verlag, 2007, 32: 243-255. |
|
Researcher
: Shen Y |
|
List of Research Outputs |
|
Shen Y., Lam E.Y.M. and Wong N., A signomial programming approach for binary image restoration by penalized least squares, IEEE Transactions on Circuits and Systems II. 2008, 55: 41-45. |
|
Researcher
: So HKH |
|
List of Research Outputs |
|
Markovic D., Chang C., Richards B., So H.K.H., Nikolic B. and Brodersen
R., ASIC Design and Verification in an FPGA Environment, 2007 IEEE Custom
Integrated Circuits Conference (CICC). |
|
Mellers S., Richards B., So H.K.H., Mishra M.S., Camera K., Subrahmanyam P.A. and Brodersen R., Radio Testbeds Using BEE2, Forty-First Asilomar Conference on Signals, Systems and Computers (ACSSC). 2007, 1991-1995. |
|
So
H.K.H. and Brodersen R., A Unified
Hardware/Software Runtime Environment for FPGA-Based Reconfigurable Computers
using BORPH, In: Jörg Henkel, ACM
Transactions on Embedded Computing Systems. |
|
So H.K.H., Runtime Filesystem Support for Reconfigurable FPGA Hardware Processes in BORPH, Sixteenth Annual IEEE Symposium on Field-Programmable Custom Computing Machine. 2008. |
|
Researcher
: Sum KW |
|
List of Research Outputs |
|
Sum K.W. and Cheung P.Y.S.,
Stabilized Anisotropic Diffusions, IEEE ICASSP International Conference on
Acoustics, Speech, and Signal Processing. |
|
Sum K.W. and Cheung P.Y.S., Vessel
Extraction Under Non-uniform Illumination: A Level Set Approach, IEEE
Transactions on Biomedical Engineering. |
|
Researcher
: Sun F |
|
List of Research Outputs |
|
Sun F.,
Li V.O.K. and Diao Z., Joint dynamic subcarrier
allocation and flow control for real-time streaming over multiuser OFDM
systems, Proc. IEEE Globecom. |
|
Sun F., Li V.O.K., Diao Z. and Xu Z.Y., Medium access control with physical layer assisted link differentiation, IEEE Transactions on Vehicular Technology. 2008, 57: 1255-1271. |
|
Sun F.,
Li V.O.K. and Diao Z., Modified bipartite
matching for multiobjective optimization, Proc. IEEE TENCON. |
|
Sun F.,
Li V.O.K. and Diao Z., Multiobjective optimized
bipartite matching for resource allocation, Proc. IEEE International
Symposium on Communications and Information Technologies. |
|
Researcher
: Sun Y |
|
List of Research Outputs |
|
Sun Y., Li V.O.K. and Leung K.C., Distributed Opportunistic Scheduling in Multihop Wireless Ad Hoc Networks, Proceedings of the IEEE International Conference on Communications. 2008, 2238-2242. |
|
Sun Y.,
Li V.O.K. and Leung K.C., Distributed opportunistic
scheduling in multihop wireless ad hoc networks, Proc. IEEE International
Conference on Communications. |
|
Researcher
: Tam VWL |
|
Project Title: |
Student-centered learning facilitated by cooperative simulation games on wireless mobile devices |
|
Investigator(s): |
Tam VWL, Kwan ACM, Yeung LK, Leung CH |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Teaching Development Grants |
|
Start Date: |
09/2006 |
|
Abstract: |
|
To carefully design, implement and test a pilot simulation game based on the domain of Information Technology as a prototype to actualize and realize the possible advantages of Digital Game Based Learning (DGBL) in tertiary education of the Engineering discipline in general; to carefully evaluate the benefits/shortcomings of our above homegrown simulation games through questionnaires and interviews with students within the Department of EEE and possibly later extended to the whole Faculty when sufficient resource is secured, or suitable funding opportunities arise. |
|
List of Research Outputs |
|
Cheng K.Y., Wong Lui K.S., Wu Y.C. and Tam V.W.L., A Greedy Distributed Time Synchronization Algorithm for Wireless Sensor Networks, IEEE ICC 2008. |
|
Cheung
S.W., Fok W.W.T. and Tam V.W.L., TD-SCDMA Application
Award, |
|
Fok W.W.T., Tam V.W.L. and Bose I., Asia-Pacific Financial Market Forecast by Computational Methodologies, In: W.W.T. Fok, V.W.L. Tam, H. Ng, I. Bose, 6th NTU International Conference on Economics, Finance and Accounting "Financial Engineering and Financial Intermediation". 2008NTU經濟金融會計國際研討會, Taiwan, 2008. |
|
Ma K.T., Cheng K.Y., Wong Lui K.S. and Tam V.W.L., Data Centric Storage with Diffuse Caching in Sensor Networks, Wireless Communications and Mobile Computing Journal. Wiley, 2007, 9: 347 - 356. |
|
Tam V.W.L., Kwan A.C.M., Leung C.H., Yeung L.K. and Liao Z., An Interactive Simulation Game to Enhance Learners’ Experience On Mobile Devices , Proceedings of the International Conference on ICT in Teaching and Learning (ICT 2007). 2007. |
|
List of Research Outputs |
|
Tam W.Y., Wong Lui K.S., Uludag S. and Nahrstedt K., Quality-of-Service Routing with Path Information Aggregation, Elsevier Computer Networks Journal. 2007, 51: 3574-3594. |
|
Researcher
: Tan Z |
|
List of Research Outputs |
|
Pang C.C., Tan Z. and Yung N.H.C., A methodology for resolving severely occluded vehicles based on component-based multi-resolution relational graph matching, Proceedings of IEEE International Conference on Machine Vision. IEEE, 2007, 6. |
|
Researcher
: Tang MY |
|
List of Research Outputs |
|
Tang M.Y., Ng M.C. and Lam E.Y.M., Image reconstruction of variable density undersampled EPI images, International Society of Magnetic Resonance in Medicine Annual Meeting. 2008, 3149. |
|
Tang M.Y., Kacher D., Lam E.Y.M., Brodsky M., Jolesz F. and Yang E.S., Multi-modal imaging: Simultaneous MRI and Ultrasound imaging for carotid arteries visualization, 29th International Conference of the IEEE Engineering in Medicine and Biology Society. 2007. |
|
Tang M.Y., Kacher D., Lam E.Y.M., Wong K., Jolesz F. and Yang E., Simultaneous ultrasound and MRI system for breast biopsy: Compatibility assessment and demonstration in a dual modality phantom, IEEE Transactions on Medical Imaging. 2008, 27: 247-254. |
|
Researcher
: Tang WKA |
|
List of Research Outputs |
|
Li Y., Tang W.K.A. and Hung Y.S., Stratified self-calibration and metric reconstruction for zooming/refocusing circular motion sequence, Journal of Mathematical Imaging and Vision. 2008, 31: 105-118. |
|
Researcher
: Tang WM |
|
List of Research Outputs |
|
Tang W.M., Leung C.H. and Lai P.T., Effects of insulator thickness
on the sensing properties of MISiC Schottky-diode hydrogen sensor, The 4th
IEEE International Symposium on Electronic Design, Test and Applications
(DELTA). |
|
Tang W.M., Cheng K.H., Leung C.H., Lai P.T., Xu J. and Che C.M., Improved Performance for OTFT
with HfTiO2 as gate dielectric by N2O annealing, Proceedings of IEEE
International Conference on EDSSC. |
|
Tang W.M., Leung C.H. and Lai P.T., Sensing Characteristics of a
Novel MISiC Schottky-Diode Hydrogen Sensor with HfO2 as gate insulator, 2007
International Semiconductor Device Research Symposium (ISDRS). |
|
Researcher
: Tsui KM |
|
List of Research Outputs |
|
Tsui K.M., Chan S.C. and Kwan H.K., A New Method for Designing Causal Stable IIR Variable Fractional Delay Digital Filters , IEEE Trans. Circuits for Systems II. 2007, vol. 54, no. 11: pp. 999-1003. |
|
Yin S., Chan S.C. and Tsui K.M., On the design of nearly-PR and PR FIR cosine modulated filter banks having approximate cosine-rolloff characteristics, IEEE Trans. Circuits for Systems II. 2008, vol. 55, no. 6: pp. 571-575. |
|
Zhang Z., Chan S.C. and Tsui K.M., A recursive frequency estimator using linear prediction and a Kalman-filter-based iterative algorithm, IEEE Transaction on Circuits and Systems II. 2008, vol. 56, no. 6: pp. 576-580. |
|
Researcher
: Tsui KM |
|
List of Research Outputs |
|
Tsui K.M., Chan S.C. and Kwan H.K., A New Method for Designing Causal Stable IIR Variable Fractional Delay Digital Filters , IEEE Trans. Circuits for Systems II. 2007, vol. 54, no. 11: pp. 999-1003. |
|
Yin S., Chan S.C. and Tsui K.M., On the design of nearly-PR and PR FIR cosine modulated filter banks having approximate cosine-rolloff characteristics, IEEE Trans. Circuits for Systems II. 2008, vol. 55, no. 6: pp. 571-575. |
|
Zhang Z., Chan S.C. and Tsui K.M., A recursive frequency estimator using linear prediction and a Kalman-filter-based iterative algorithm, IEEE Transaction on Circuits and Systems II. 2008, vol. 56, no. 6: pp. 576-580. |
|
Researcher
: Vellaisamy ALR |
|
Project Title: |
DNA based molecular transistor devices |
|
Investigator(s): |
Vellaisamy ALR |
|
Department: |
Chemistry |
|
Source(s) of Funding: |
Seed Funding Programme for Basic Research |
|
Start Date: |
03/2006 |
|
Abstract: |
|
DNA (Deoxyribo Nucleic Acid) the blueprint of life, has taken centre stage in biological research during the past few decades. DNA is the best nanowire in existence, and it self-assembles, self-replicates and can adopt various states of conformations. Of these, the most important property of DNA for a biomolecular engineer is its ability to self-assemble, which makes it possible to produce nanostructures with a precision that is not achievable with classical silicon-based technologies. Fink & Schonenberger were the first to measure current flow through DNA using a modified low-energy electron point-source microscope. Kasumov et al. reported that DNA also behaves like a proximity-induced superconductor, using λ-DNA of 16 µm to connect two rhenium carbon electrodes on a mica substrate. Aich and co-workers showed that DNA with zinc atoms incorporated between its bases also acts as a conductor. Molecular lithography has already been carried out using the RecA protein, which further increases the potential of using DNA for the chemical ‘growth’ of electronic parts. The electrical conduction through poly(dA)-poly(dT) and poly(dG)-poly(dC) DNA molecules has been reported and it was found that poly(dA)-poly(dT) behaves as an n-type semiconductor and poly(dG)-poly(dC) behaves as a p-type semiconductor. Here, for the first time we want to demonstrate a DNA ambipolar field effect transistor which can transport both electrons and holes, having genomic DNA as active material, with pronounced ambipolar current characteristics. This device gives a new insight on DNA based electronic devices for future applications. |
|
Project Title: |
Nano photonic devices based on polymer nano-rods |
|
Investigator(s): |
Vellaisamy ALR, Che CM, Chui SY |
|
Department: |
Chemistry |
|
Source(s) of Funding: |
Seed Funding Programme for Basic Research |
|
Start Date: |
04/2007 |
|
Abstract: |
|
There is a growing interest in the development of new and inexpensive materials for photonic device applications. For high-performance and low-power photonic device applications, it is important to develop more flexible materials that can be structurally modified in order to accelerate the progress of research in nano-elecronics. In this proposal, the first deliverable is to achieve high performance low voltage nano photonic (light emitting field effect transistor) devices based on homoleptic copper (I) coordination polymer nano-rods which could be engineered to achieve high charge carrier transporting and electroluminescent properties. This proposal will integrate nano-rod device physics and materials chemistry by using copper (I) coordination polymers as advanced materials to build nano photonic devices. The objectives and key deliverables are: 1) Low voltage metal-organic polymer nano-rod light emitting device with FET (Field Effect Transistor) structure. 2) To design stable and inexpensive copper (I) polymer nano-rods possessing high charge carrier [electron (n-type) / hole (p-type) / ambipolar] transporting and electroluminescent properties by structural modifications. |
|
Researcher
: Wang H |
|
List of Research Outputs |
|
Pan
X., Ma S., Wang H., Zhou Y. and Ng T.S., Symbol Synchronization Based on
Cyclic Prefix for the Uplink of OFDMA Systems, IEEE TENCON2007. Tai |
|
Pan X., Ma S., Wang H., Zhou Y. and Ng T.S., Symbol Synchronization Based on Cyclic Prefix for the Uplink of OFDMA Systems, Proceedings, IEEE TENCON Taipei, Oct 30 - Nov 2, 2007. |
|
Researcher
: Wang J |
|
Project Title: |
MIMO
Multiplexing/Demultiplexing in OFCDM for |
|
Investigator(s): |
Wang J |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
NTT DoCoMo - General Award |
|
Start Date: |
04/2004 |
|
Abstract: |
|
To study the use of MIMO
multiplexing/demultiplexing in OFCDM for |
|
List of Research Outputs |
|
Kong Z., Kwok Y.K. and Wang J., Game Theoretic Packet Scheduling to Combat Non-Cooperativeness in Wireless Mesh Networks, Proceedings of The Second IEEE International Workshop on Wireless Mesh and Ad Hoc Networks (WiMAN 2008), in conjunction with the 28th International Conference on Distributed Computing Systems (ICDCS 2008), Beijing, China. 2008. |
|
Kong
Z., Kwok Y.K. and Wang J., On the Impact of Selfish
Behaviors in Wireless Packet Scheduling, Proceedings of the IEEE
International Conference on Communications (ICC 2008), |
|
Liu Y., Kwok Y.K. and Wang J., Downlink TCP Performance Under Cross Layer Rate and Power Allocation in Infrastructure TH-PPM UWB Networks, Journal of Supercomputing. 2008, 44(3): 199-216. |
|
Liu Y., Kwok Y.K. and Wang J., High Performance Power Control and Opportunistic Fair Scheduling in TH-PPM UWB Ad Hoc Multimedia Networks, Journal of Supercomputing. 2008, 43(1): 59-76. |
|
Wang
J., Chau
K.T., Jiang J. and Yu C., Design and analysis of a
transverse flux permanent magnet machine using three dimensional scalar
magnetic potential finite element method, AIP Journal of Applied Physics.
2008, 103(7): |
|
Wang J., Chau K.T. and Jiang J., Design and analysis of a transverse flux permanent magnet machine using three dimensional scalar magnetic potential finite element method, Magnetism and Materials Conference. 2007, CD-ROM. |
|
Zhou
Y., Wang J. and Ng T.S., Code assignment for broadband
OFCDM systems, IEEE PIMRC 2007. |
|
Zhou Y., Wang J., Ng T.S., Higuchi K. and Sawahashi M., OFCDM: a promising broadband wireless access technique, IEEE Communications Magazine. IEEE, 2008, 46: 39-49. |
|
Zhou
Y., Wang J. and Ng T.S., Two Dimensionally Spread OFCDM
Systems for |
|
Researcher
: Wang J |
|
List of Research Outputs |
|
Kong Z., Kwok Y.K. and Wang J., Game Theoretic Packet Scheduling to Combat Non-Cooperativeness in Wireless Mesh Networks, Proceedings of The Second IEEE International Workshop on Wireless Mesh and Ad Hoc Networks (WiMAN 2008), in conjunction with the 28th International Conference on Distributed Computing Systems (ICDCS 2008), Beijing, China. 2008. |
|
Kong
Z., Kwok Y.K. and Wang J., On the Impact of Selfish
Behaviors in Wireless Packet Scheduling, Proceedings of the IEEE
International Conference on Communications (ICC 2008), |
|
Liu Y., Kwok Y.K. and Wang J., Downlink TCP Performance Under Cross Layer Rate and Power Allocation in Infrastructure TH-PPM UWB Networks, Journal of Supercomputing. 2008, 44(3): 199-216. |
|
Liu Y., Kwok Y.K. and Wang J., High Performance Power Control and Opportunistic Fair Scheduling in TH-PPM UWB Ad Hoc Multimedia Networks, Journal of Supercomputing. 2008, 43(1): 59-76. |
|
Wang
J., Chau
K.T., Jiang J. and Yu C., Design and analysis of a
transverse flux permanent magnet machine using three dimensional scalar
magnetic potential finite element method, AIP Journal of Applied Physics.
2008, 103(7): |
|
Wang J., Chau K.T. and Jiang J., Design and analysis of a transverse flux permanent magnet machine using three dimensional scalar magnetic potential finite element method, Magnetism and Materials Conference. 2007, CD-ROM. |
|
Zhou
Y., Wang J. and Ng T.S., Code assignment for broadband
OFCDM systems, IEEE PIMRC 2007. |
|
Zhou Y., Wang J., Ng T.S., Higuchi K. and Sawahashi M., OFCDM: a promising broadband wireless access technique, IEEE Communications Magazine. IEEE, 2008, 46: 39-49. |
|
Zhou
Y., Wang J. and Ng T.S., Two Dimensionally Spread OFCDM
Systems for |
|
Researcher
: Wang L |
|
List of Research Outputs |
|
Wang L. and Yung N.H.C., Extraction of moving human objects from their background using bi-thresholding and boundary evaluation, Proceedings of IASTED International Conference on Signal and Image Processing. IASTED, 2007, 522-527. |
|
Researcher
: Wang X |
|
List of Research Outputs |
|
Ng W.N., Wang X., Leung C.H., Lai P.T. and Choi H.W., Nanopatterning GaN with Microspheres, 7th International Conference on Nitride Semiconductors. 2008. |
|
Ng
W.N., Wang X., Leung C.H., Lai P.T. and Choi H.W., Nanopatterning GaN with
Microspheres, 7th International Conference on Nitride Semiconductors, |
|
Ng W.N., Wang X., Leung C.H., Lai P.T. and Choi H.W., Nanopatterning GaN with Microspheres, Physica Status Solidi (c). 2008, 5: 1615. |
|
Researcher
: Wang Z |
|
List of Research Outputs |
|
Jian L., Chau K.T., Zhang D., Jiang J. and Wang Z., A magnetic-geared outer-rotor permanent-magnet brushless machine for wind power generation, IEEE Industry Applications Society Annual Meeting. 2007, CD-ROM. |
|
Liu C., Chau K.T., Jiang J., Liu X. and Wang Z., Design and control of a doubly-excited permanent-magnet brushless integrated-starter-generator for hybrid electric vehicles, IEEE Industry Applications Society Annual Meeting. 2007, CD-ROM. |
|
Niu S., Chau K.T., Zhang D., Jiang J. and Wang Z., Design and control of a doubly-stator permanent-magnet motor drive for electric vehicles, IEEE Industry Applications Society Annual Meeting. 2007, CD-ROM. |
|
Wang Z. and Chau K.T., Anti-control of chaos of a permanent magnet dc motor system for vibratory compactors, Chaos, Solitons and Fractals. 2008, 36(3): 694-708. |
|
Wang Z. and Chau K.T., Chaoization of permanent magnet synchronous motors using stator flux regulation, IEEE International Magnetics Conference. 2008, CD-ROM. |
|
Wang Z. and Chau K.T., Design and analysis of a chaotic PWM inverter for electric vehicles, IEEE Industry Applications Society Annual Meeting. 2007, CD-ROM. |
|
Researcher
: Wong KK |
|
List of Research Outputs |
|
Wong K.K., Yang E.S., Wu E.X., Tse H.F. and Wong S.T., First-pass myocardial perfusion image registration by maximization of normalized mutual information, Journal of Magnetic Resonance Imaging. 2008, 27: 529-537. |
|
Researcher
: Wong KKY |
|
Project Title: |
Ultra-wideband fibre-based source for biophotonic applications |
|
Investigator(s): |
Wong KKY, Wu EX |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Small Project Funding |
|
Start Date: |
01/2006 |
|
Abstract: |
|
The goal of this project is to design and implement a more compact, portable and economical, ultra-wideband supercontinuum source for biophotonic applications based on existing photonics technology. We identify that with the relatively low budget, it is expected to provide a significant impact on the emerging biomedical applications using photonics. Biophotonics, the marriage of the photonics and biology, is an emerging frontier providing challenges for fundamental research and opportunities for new technologies. It deals with interactions between light and biological matter. However, instead of taking a bottom-up approach and designing from basics, it is more effective to pursue a top-down approach by utilizing the existing photonics technology on the biological or medical applications. Furthermore, significant investment in the optical telecommunications sector over the last decade has resulted in the availability of inexpensive, high-performance devices including light sources and miniature active and passive components. These components are a strong candidate in supporting the development of new imaging and diagnostic technologies for basic science studies in biology and for minimally invasive procedures in medicine. Additionally, concepts such as coherence- and frequency-domain ranging, wavelength-division multiplexing and ultrafast communications have led to analogous techniques for high-resolution imaging. One particular emerging technology is the optical coherence tomography (OCT), which is essential for micrometer-scale, cross-sectional imaging of biological tissue and materials. However, few key limitations to achieving ultrahigh-resolution OCT imaging outside the laboratory setting have been the lack of compact, high-performance broadband light sources with sufficient power and stability to allow practical real-time imaging. Sources using femtosecond solid-state lasers have been demonstrated to generate directly broad bandwidths that can be used for OCT imaging, but they are difficult to use for general applications outside the laboratory due to their bulky sizes. Broadband supercontinua generated with nonlinear and microstructure fibers pumped by femtosecond laser systems have allowed imaging with unprecedented resolution but require femtosecond solid-state lasers, which are widely known to be expensive, difficult to handle and fairly unstable. On the contrary, this project proposes a much more compact, portable and economical approach to ultrahigh-resolution imaging. For example, fibre lasers are more compact and robust when compared with bulk solid-state lasers. Furthermore, fibre-based light sources have achieved sub-2-micro high-resolution OCT in the 1300-nm wavelength region. Because optical scattering in tissues is reduced and the penetration depth is increased at longer wavelengths, the wavelength region around 1400-1600nm is of interest for OCT imaging. This wavelength region is also attractive for the characterization of optical devices or spectroscopic applications measuring water absorption. |
|
Project Title: |
Versatile parametric devices for next-generation photonic systems |
|
Investigator(s): |
Wong KKY |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
|
Start Date: |
09/2006 |
|
Abstract: |
|
1 Design and implement a wideband optical
amplifier. Typical optical amplifiers are limited in their amplification
windows and bandwidth. The outlook on the development of conventional
amplifiers to cover the entire low-loss window (1200-1700 nm) of fibers is
not promising. Thus one should explore other avenues to develop wideband
amplifiers capable of covering this window, ideally with a single device.
Fiber optical parametric amplifiers (OPA) have been shown to be one of the
most promising candidates, except for the nonlinear crosstalks induced by
wavelength division multiplexing (WDM) channels. The scheme we propose here
should be able to suppress the crosstalks significantly. Consequently, it
becomes possible to deploy the photonic parametric processor (PPP) as
wideband amplifier in WDM systems. 2 Propose and demonstrate a novel
demultiplexer in an OTDM-WDM system. Combining optical time division
multiplexing (OTDM) with WDM is a promising technique to further utilize the
bandwidth efficiently. A key component of this kind of system is the
demultiplexer. We will demonstrate a novel and efficient demultiplexer for
OTDM-WDM by PPP, with its advantages over other techniques inherited from its
large optical gain and ultra-short response time. 3 Demonstrate a novel
network element. As the data rate of individual WDM channel reaches and
exceeds 10Gb/s, 40Gb/s or even 160Gb/s in the next generation of optical
networks, it is essential to perform some signal processing functions in the
optical domain (e.g. wavelength conversion, optical packet-switching, or even
optical buffering, etc.). Unfortunately, most of these functionalities are
accomplished in the electronic domain by current technologies. For example,
there are already a few demonstrations of optical buffer, one of the most
critical components of an optical packet switched network, but none of them
is promising enough for practical use. Our PPP architecture can take
advantage of its intrinsic ultra-short response time, such that most, if not
all, of these functionalities can be implemented in the optical domain, which
is perceived to be the critical component for next-generation photonic
systems. 4 Long-term impact. In addition to the technical merits mentioned
above, the long-term impact of this project includes undergraduate and
postgraduate student research training and education, which will bring
significant social and economic benefits to |
|
Project Title: |
Novel parametric sensors for biophotonic applications |
|
Investigator(s): |
Wong KKY, Wu EX |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Seed Funding Programme for Basic Research |
|
Start Date: |
01/2007 |
|
Abstract: |
|
The goal of this project is to design and implement a parametric sensor for different biophotonic applications based on existing photonics technology. We identify that with the relatively low budget, it is expected to provide a significant impact on the emerging biomedical applications using photonics. Biophotonics, the marriage of the photonics and biology, is an emerging frontier providing challenges for fundamental research and opportunities for new technologies. It deals with interactions between light and biological matter. However, instead of taking a bottom-up approach and starting everything from scratch, it is more effective to pursue a top-down approach by utilizing the existing photonics technology on the biological or medical applications. On the other hand, significant investment in the optical telecommunications sector over the last decade has resulted in the availability of inexpensive, high-performance devices including light sources and miniature active and passive components. These components are a strong candidate in supporting the development of new local and remote sensing technologies for applications in homeland security and environmental monitoring. Additionally, effective technologies developed in telecommunications such as wavelength-division multiplexing (WDM), parametric amplification, and ultrafast communications can lead to advancement beyond telecommunications. One particular emerging area is the long-distance remote and local sensing of different enviromental variables and minute amount of biochemical substances, which are essential for homeland security and continuous environmental monitoring. Two main objectives for this project can be summarized as follows: 1. Propose and demonstrate a novel long-distance remote parametric sensor. We propose a versatile device, biophotonic parametric processor (BPP), to facilitate multiple biophotonic functions. In this part of the project, we will demonstrate a novel long-distance remote sensor of strain and temperature simultaneously by BPP, relying on distributed parametric amplifier (DPA) and optical parametric oscillator (OPO). Its advantages over other techniques inherit from its high optical gain, long sensing range and efficiency. 2. Demonstrate a novel fiber-based biosensor. As the demand for biochemical sensors in the next generation of biophotonic systems is driven by the awareness of security and environmental issues, it is essential to perform sensitive biochemical sensing in the optical domain due to its electromagnetic immunity and other features. Although fiber-optic sensor (FOS) has been widely explored in last decades, parametric biosensor provides a promising solution with its high optical gain and sensitivity. Our BPP architecture is design to capture these advantages which are critical attributes for next-generation biophotonic systems. |
|
List of Research Outputs |
|
Cheung
K.Y.H., Fung W.L., Chui P.C. and Wong K.K.Y., All-Optical NRZ-to-RZ
Format Conversion based on Optical Parametric Amplifier, Optoelectronics
and Comm. Conf.. |
|
Cheung K.Y.H., Fung W.L., Chui P.C. and Wong K.K.Y., Dynamic Range of Wavelength Exchange in Highly Nonlinear Dispersion-Shifted Fiber, Opt. Fiber Comm. Conf.. 2008. |
|
Chow K.W., Lam C.K. and Wong K.K.Y., Modulation Instabilities in a System of Four Coupled, Nonlinear Schrodinger Equations, Physics Letters A. 2008, vol. 372, no. 55: pp. 4596-4600. |
|
Fung
W.L., Cheung K.Y.H., Kwok
C.H. and Wong K.K.Y., High
Extinction Ratio of Switched Packets by Two-Stage Four Wave Mixing in Highly
Nonlinear Dispersion-Shifted Fiber, Optoelectronics and Comm. Conf.. |
|
Fung
W.L., Cheung H.K.Y., Wong K.K.Y. and Kwok C.H., High
Extinction Ratio of Switched Packets by Two-Stage Four Wave Mixing in Highy
Nonlinear Dispersion-Shifted Fiber, Optoelectronics and Comm. Conference.
|
|
Fung
W.L., Cheung K.Y.H. and Wong K.K.Y., Performance of
Wavelength Exchange in Anomalous-dispersion Region, Optoelectronics and
Comm. Conf.. |
|
Fung
W.L., Cheung H.K.Y. and Wong K.K.Y., Performance of
Wavelength Exchange in Anomalous-dispersion Region, Optoelectronics and
Comm. Conference. |
|
Fung W.L., Cheung H.K.Y. and Wong K.K.Y., Widely Tunable Wavelength Exchange in Anomalous-Dispersion Regime, IEEE Photon Technol. Letter. IEEE, 2007, vol. 19, no. 22: pp.1846-1848. |
|
Fung W.L., Cheung K.Y.H. and Wong K.K.Y., Widely Tunable Wavelength Exchange in Anomalous-Dispersion Regime, IEEE Photon. Technol. Lett.. 2007, 19: 1846-1848. |
|
Fung
W.L., Cheung K.Y.H. and Wong K.K.Y., Widely tunable
Wavelength Exchange in Anomalous-dispersion Regime, European Conf. on
Optical Communications. |
|
Hui K.N., Fu W.Y., Leung C.H., Lai P.T. and Wong K.K.Y., Polychromatic Light Emitting Diodes with a Fluorescent Nanosphere Opal Coating, Nanotechnology, NANO/279137/PAP/197637, 2008. 2008. |
|
Kuo P.P., Chui P.C. and Wong K.K.Y., A Comprehensive Study on Crosstalk Suppression Techniques in Fiber Optical Parametric Amplifier by Modulation format, IEEE J. on Selected Topics in Quantum Electronics. 2008, vol. 14, no. 3: pp. 659-665. |
|
Kuo
P.P., Chui P.C. and Wong K.K.Y., Comparison on Crosstalk
Tolerance of RZ-DPSK and RZ-OOK Modulation Format in Fiber Optical Parametric
Amplifier, European Conf. on Optical Communications. |
|
Kuo
P.P., Chui P.C. and Wong K.K.Y., Multi-channel
Ultrawideband Monocycle Pulse Generation via Cross Phase Modulation and
Spectral Filtering, Optoelectronics and Comm. Conference. |
|
Kuo P.P., Shimizu K., Chui P.C. and Wong K.K.Y., Receiver sensitivity improvement for ON-OFF keying signal by using optical parametric amplifier and balanced detection, 2008 IEEE/LEOS Winter Topical Meetings. 2008. |
|
Kuo P.P., Chui P.C. and Wong K.K.Y., Simultaneous Optical Delay and NRZ-RZ Format Conversion via Cross-Polarization Modulation and Pulse Pre-Chirping, Conf. on Lasers & Electro-Optics. 2008. |
|
Kuo
P.P., Chui P.C. and Wong K.K.Y., Tunable Repetition-rate
Ultrawideband Monocycle Pulse Generation by using Optical Parametric
Amplifier, Optoelectronics and Comm. Conf.. |
|
Kwok C.H. and Wong K.K.Y., Phase Shifted Multilevel Amplitude-Shift Keying for 100 Gb/s Ethernet Applications, Conf. on Lasers & Electro-Optics. 2008. |
|
Lai
M.F., Lin N. and Wong K.K.Y., All-Optical Half-Adder
by Using a Single-Stage Optical Parametric Amplifier, European Conf. on
Optical Communications. |
|
Lai M.F., Kwok C.H. and Wong K.K.Y., All-Optical Signal Regeneration Using Optical Parametric Amplifier, Conf. on Lasers & Electro-Optics. 2008. |
|
Lai
M.F., Kuo P.P. and Wong K.K.Y., All-Optical XOR Gate
using Fiber Optical Parametric Amplifier, Optoelectronics and Comm. Conf..
|
|
Lai M.F., Kwok C.H., Yuk T.T.I. and Wong K.K.Y., Picosecond All-Optical Logic Gates (XOR, OR, NOT and AND) in a Fiber Optical Parametric Amplifier, Opt. Fiber Comm. Conf.. 2008. |
|
Lai
M.F., Kwok O.C.H., Yuk T.T.I. and Wong K.K.Y., Picosecond All-Optical
Logic Gates (XOR, OR, NOT and AND) in a Fiber Optical Parametric Amplifier, Optical
Fiber Comm. Conference. |
|
Wong K.K.Y., Nonlinear Fiber Optics and Fiber Optical Parametric Amplifiers, Guest Lecture for Advanced Topics in Optical Communications, CUHK. 2007. |
|
Wong
K.K.Y., Recent Advances in the Fiber Optical
Parametric Amplifiers, Intel, |
|
Wong K.K.Y., Kuo P.P., Lui G.W. and Chen L.K., Reduction of Nonlinear Crosstalk in Fiber OPAs, 2008 IEEE/LEOS Winter Topical Meetings. 2008. |
|
Zhang X., Lam E.Y.M., Wu E.X. and Wong K.K.Y., Application of Tikhonov regularization to super-resolution reconstruction of brain MRI image, Lecture Notes in Computer Science . 2008. |
|
Zhang X., Lam E.Y.M., Wu E.X. and Wong K.K.Y., Regularized super-resolution reconstruction of brain MRI image, Medical Imaging and Informatics. 2007. |
|
Researcher
: Wong N |
|
Project Title: |
Very fast VLSI model reduction for CAD applications |
|
Investigator(s): |
Wong N |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
|
Start Date: |
01/2005 |
|
Abstract: |
|
To develope of fast and highly accurate model reduction algorithms targeted at computer-aided design (CAD) of VLSI systems; to interface such algorithms to existing design tools so as to increase the accessibility of designers. |
|
Project Title: |
Lower-power integrated circuit design techniques for digital audio coder/decoder |
|
Investigator(s): |
Wong N, Lui SH |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Teaching Company Scheme |
|
Start Date: |
09/2005 |
|
Abstract: |
|
To develop efficient architectures and design methodologies for low-power audio codec; to integrate with engineering applications; to develop hardware prototyping, verification, and characterization. |
|
Project Title: |
Efficient Model Order Reduction of VLSI Interconnect Networks with Large Numbers of Input/Output Ports |
|
Investigator(s): |
Wong N |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Seed Funding Programme for Basic Research |
|
Start Date: |
09/2007 |
|
Abstract: |
|
The design of deep-submicron very-large-scale integration (VLSI) circuits has entered an era wherein the previously negligible delay in interconnect (wire) has become a dominant factor and bottleneck in chip performance. This is due to the ever-increasing number and speed of transistors on a chip and the complexity of the multi-layer interconnect network connecting them together. Key Issues: 1. An important post-layout verification step for ensuring signal integrity is to perform parasitic extraction and simulate, by considering parasitic effects arising from the actual silicon geometry, the time and frequency responses of the interconnect network. 2. A difficulty in this crucial verification step is the enormous model orders that prohibit direct computer analysis. Model order reduction has become an indispensable step in which high-order models are reduced to considerably smaller ones without much degradation in accuracy. Key Problems: 1. Specialized algorithms for the reduction process fall broadly into the traditional projection-based category and the evolving balanced truncation (BT) approach that exhibits near-optimality and deterministic error bounds. However, in both approaches, the model order can only be reduced to a point limited by, and proportional to the number of input/output ports. This renders it impractical to simulate highly meshed and coupled parasitic networks that easily contain thousands of input/output ports. 2. A recent advancement is made by lumping signal statistics into the linear matrix equations in standard BT. The input correlation then translates into a low-rank covariance matrix and facilitates the otherwise impossible compact models. A drawback is that standard BT does not necessarily preserve passivity of the original models. (Roughly, a passive network is one that does not generate energy internally and is automatically stable. Passivity is a necessary condition to guarantee stable global simulation when multiple reduced-order models are connected and simulated.) 3. A particular BT variant, called the positive-real BT or PRBT, preserves passivity. However, PRBT involves complex quadratic matrix equations, called the Riccati equations, whose solution requires intensive computation. Moreover, the incorporation of input/output statistics in PRBT has not been investigated. Objectives: Motivated by these observations, the objectives of the current proposal are twofold: 1. To develop a unified analytical framework for the model order reduction of massively coupled interconnect networks with a large number of input/output ports. The input/output signal statistics are explicitly exploited in this context to produce efficient model order reduction schemes. 2. To design specialized high-port-dimension model order reduction algorithms that are computationally efficient, preserve stability and passivity of the original models, and generate tight bounds for the approximation errors. Key Methodologies: Specific approaches to achieve these goals are: 1. To formulate new and computationally efficient model order reduction schemes that incorporate input/output statistics like correlation and coupling between different port signals, thereby enabling the speedup in the overall model order reduction exercise. 2. To adapt recent advances in the high-speed solution of large-scale Riccati matrix equations to the development fast and accurate high-port-dimension PRBT algorithms. Output of this project would advance the frontiers in statistics-conscious, high-port-dimension model order reduction. Reduction algorithms developed in the project will tackle the otherwise non-reducible models in massively coupled parasitic networks with a large number of input/output ports. Benefits of the project include faster VLSI design cycle and more reliable chip simulation. The research output would be publicized in international conferences and journals. Students involved in the project will also be trained up with relevant knowledge readily welcome by the local or overseas VLSI industry. |
|
List of Research Outputs |
|
Chen Q. and Wong N., An efficient stochastic integral equation method for modeling the influence of conductor surface roughness on interconnect ohmic loss, Proc. Midwest Symp. Circuits and Systems (MWSCAS). 2007, 1417-1420. |
|
Chen Q. and Wong N., Efficient numerical modeling of random rough surface effects for interconnect internal impedance extraction, Proc. 13th Asia and South Pacific Design Automation Conference ASP-DAC. 2008, 152-157. |
|
Ho A.Y.H., Lei C.U. and Wong N., A common subexpression sharing approach for multiplierless synthesis of multiple constant multiplications, IAENG Engineering Letters. 2007, 15(1): 149-156. |
|
Ho A.Y.H., Lei C.U., Kwan H.K. and Wong N., Global optimization of common subexpressions for multiplierless synthesis of multiple constant multiplications, Proc. 13th Asia and South Pacific Design Automation Conference ASP-DAC. 2008, 119-124. |
|
Ho
A.Y.H., Lei C.U. and Wong N., Multiplierless synthesis of
multiple constant multiplications using common subexpression sharing with
genetic algorithm, Advances in Communication Systems and Electrical
Engineering in series of Lecture Notes Electrical Engineering. |
|
Kwan H.K., Lui S.H., Lei C.U., Liu Y., Wong N. and Ho K.L., Design of Hybrid Continuous-Time Discrete-Time Delta Modulators, Proc. IEEE Int. Symp. Circuits Syst. ISCAS. 2008, 1224-1227. |
|
Lei C.U., Cheung C.M. and Wong N., Efficient 2D linear-phase IIR filter design and application in image filtering, IAENG International Journal of Applied Mathematics. 2007, 37(1): 56-63. |
|
Lei
C.U., Cheung C.M. and Wong N., Efficient 2D linear-phase
IIR filter design and application in image processing, Advances in
Communication Systems and Electrical Engineering in series of Lecture Notes
Electrical Engineering. |
|
Lei C.U., Cheung C.M., Kwan H.K. and Wong N., Efficient complex continuous-time IIR filter design via generalized vector fitting, Proc. IAENG International Conference on Electrical Engineering. 2008, 1393-1398. |
|
Lei C.U. and Wong N., Efficient linear macromodeling via discrete-time time-domain vector fitting, Proc. 21st Intl. Conf. on VLSI Design. 2008, 469-474. |
|
Lei C.U., Kwan H.K., Liu Y. and Wong N., Efficient linear macromodeling via least-squares response approximation, Proc. IEEE Int. Symp. Circuits Syst. ISCAS. 2008, 2993-2996. |
|
Liu Y. and Wong N., Passivity-preserving model order reduction of linear time-varying macromodels, Proc. Intl. Conf. on ASIC (ASICON) (invited paper). 2007. |
|
Ng C.W., Wong N. and Ng T.S., Bit-Stream Adders and Multipliers for Tri-Level Sigma-Delta Modulators, IEEE Transactions on Circuits and Systems II. 2007, 54(12): 1982-1986. |
|
Ng C.W., Wong N. and Ng T.S., Bit-stream adders and multipliers for tri-level sigma-delta modulators, IEEE Trans. Circuits Syst. II. 2007, 54: 1082-1086. |
|
Ng C.W., Wong N. and Ng T.S., Quad-level Bit-stream Adders and Multipliers with Efficient FPGA Implementation, IEE Electronics Letters. 2008, 44(12): 722-723. |
|
Ng C.W., Wong N. and Ng T.S., Tri-Level Bit-Stream Signal Processing Circuits and Applications, 1st International Conference on Signal Processing and Communication Systems, Gold Coast, Australia, 17-19 December 2007. |
|
Ng C.W., Wong N. and Ng T.S., Tri-level bit-stream signal processing circuits and applications, Proc. Intl. Conf. Signal Processing and Communications Systems (ICSPCS 2007). 2007. |
|
Ng D.C.W., Wong W.Y.T., Wong N., Wan K.W.H. and Kwong D.K.K., A low-power high-output-driving CMOS voltage reference with +/-5% trimming accuracy, Proc. Intl. Conf. Microelectronics (ICM) 2007. |
|
Shen Y., Lam E.Y.M. and Wong N., A signomial programming approach for binary image restoration by penalized least squares, IEEE Transactions on Circuits and Systems II. 2008, 55: 41-45. |
|
So W.K., Cheung W.T., Liu Y., Kwan H.K. and Wong N., Design and optimization of highly linear CMOS low noise amplifiers via geometric programming, Proc. Intl. Conf. on ASIC (ASICON). 2007. |
|
Wong
N. and Chu C.K., A fast passivity test for
descriptor systems via skew-Hamiltonian/Hamiltonian matrix pencil
transformations, IEEE Trans. Circuits and |
|
Wong N., Efficient positive-real balanced truncation of symmetric systems via cross Riccati equations, IEEE Trans. Computer-Aided Design of Integrated Circuits and Systems. 2008, 27: 470-480. |
|
Wong N. and Balakrishnan V., Fast positive-real balanced truncation via quadratic alternating direction implicit iteration, IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems. 2007, 1725-1731. |
|
Wong N. and Lei C.U., IIR approximation of FIR filters via discrete-time vector fitting, IEEE Transactions on Signal Processing. 2008, 56: 1296-1302. |
|
Researcher
: Wong |
|
Project Title: |
On network parameter representation |
|
Investigator(s): |
Wong |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
|
Start Date: |
01/2005 |
|
Abstract: |
|
To investigate how to represent and manipulate network parameters so as to enhance network performance. |
|
Project Title: |
Smart Localization in Sensor Networks |
|
Investigator(s): |
Wong |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Small Project Funding |
|
Start Date: |
09/2005 |
|
Abstract: |
|
A wireless sensor network is a network consisting of thousands of sensors that span a large geographical region. These sensors are able to communicate with each other to collaboratively detect objects, collect information, and transmit messages. Sensor networks have become an important technology especially for environmental monitoring, military applications, disaster management, etc. In many applications, sensors have to know their geographical locations. Theoretically, Global Positioning System (GPS) can be used for a sensor to locate itself. In reality, it is not practical to use GPS in every sensor node because a sensor network consists of thousands of nodes and GPS becomes very costly. To solve the problem, only a few nodes are equipped with GPS hardware. These nodes are called anchor nodes and they know their positions without communicating with other nodes. Other normal sensors then obtain distance information through talking to each other and derive their positions based on the information. This process is called localization. A good localization protocol should reduce the error in position estimation by using reasonable number of messages. The computation and memory required should be limited as well due to the nature of sensor networks. In this project, we aim at developing a novel localization protocol that utilizes not only distance information but also topology information when determining sensor locations. Most of the existing work focus on increasing the accuracy in position estimation by using different mathematical techniques such as triangulation, multilateration, multidimensional scaling (MDS), convex optimization, etc. There mechanisms have different tradeoffs in accuracy and message overheads. For example, the pioneer work in this area Ad-Hoc Positioning System (APS) requires low message overheads but the errors are higher than other mechanisms. MDS does enhance accuracy significantly but requires unreasonably high message overheads and memory storage. Instead of striking a balance between accuracy and energy consumption using mathematical techniques, we would like to solve the problem from a different direction. After performing some preliminary studies, we realize that the performances of existing algorithms depend also on the topologies of the sensor networks and the locations of the anchor nodes. Unfortunately, to the best of our knowledge, there is only limited research on studying the significance of network topology and anchor node selection. Our objective in this project is to explore the effects of network topology on localization problems and to develop a novel protocol that is able to estimate positions accurately with reasonable memory and message overheads. |
|
Project Title: |
Image Transmission in Sensor Networks |
|
Investigator(s): |
Wong |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Seed Funding Programme for Basic Research |
|
Start Date: |
03/2007 |
|
Abstract: |
|
Wireless sensor networks have attracted tremendous research interests due to its vast potential applications such as surveillance, habitat monitoring, target tracking, disaster management, etc. Due to the limited computational power, sensing range and transmission range of individual sensor, the sensors are working collaboratively for data collection and transmission. Each sensor is powered by battery which is unlikely to be rechargeable, this energy limitation puts extra constraint in the operation of a sensor. Different from conventional sensor networks, all the nodes in visual sensor networks are equipped with cameras and the data to be collected and transmitted are visual data. The size of visual data is far larger than the size of common measurement such as temperature, humidity, light intensity, etc. As a result, the transmission load of visual sensor networks should be minimized in order to prolong system lifetime. Additionally, conventional sensor networks often assume the omnidirectional sensing model. However, this is not common in visual sensor networks. Every camera node has a particular capturing direction. Many approaches in omnidirectional sensor networks are not applicable to visual sensor networks. In this project, we would like to study the image coverage and transmission problem in visual sensor networks. Coverage problem is a fundamental issue in wireless sensor networks. Given a sensor network, the coverage problem is to determine how well a target or area is tracked or monitored by sensors. When images are concerned, the coverage problem can have another meaning. For example, when the nodes around an object of interest are responsible to capture images, due to the randomness of camera nodes distribution and oritentations, the images captured cover different sides of the object. The coverage problem becomes finding enough images to cover a 360-degree view. To save energy, we should select these images smartly to reduce the transmission load. The problem becomes more complicated when we consider images may overlap and the overlapping area can be processed within the sensor nodes before sending out to neighbors. In summary, our objectives of this project are as follows: 1. To study the contraints and requirements of image transmission in visual sensor networks 2. To develop protocols and algorithms that facilitate efficient target coverage and image transmission given various user requirements |
|
List of Research Outputs |
|
Cheng K.Y., Wong Lui K.S., Wu Y.C. and Tam V.W.L., A Greedy Distributed Time Synchronization Algorithm for Wireless Sensor Networks, IEEE ICC 2008. |
|
Leung K.C., Wong Lui K.S., Leung K.C. and Baker F., Quality-of-Service Routing with Two Concave Constraints, Proceedings of the IEEE International Conference on Communications. 2008, 5746-5750. |
|
Ma K.T., Cheng K.Y., Wong Lui K.S. and Tam V.W.L., Data Centric Storage with Diffuse Caching in Sensor Networks, Wireless Communications and Mobile Computing Journal. Wiley, 2007, 9: 347 - 356. |
|
Tam W.Y., Wong Lui K.S., Uludag S. and Nahrstedt K., Quality-of-Service Routing with Path Information Aggregation, Elsevier Computer Networks Journal. 2007, 51: 3574-3594. |
|
Uludag S., Wong Lui K.S., Nahrstedt K. and Brewster G., Analysis of Topology Aggregation Techniques for QoS Routing, ACM Computing Surveys. 2007, 39(3): Article 7. |
|
Researcher
: Wu B |
|
List of Research Outputs |
|
Chiu H.S., Wu B. and Yeung L.K., Widest Spanning Tree for Multi-Channel Multi-Interface Wireless Mesh Networks, WCNC 2008. IEEE. |
|
Wu B., Yeung L.K. and Ho P.H., A Comparative Study of Fast Protection Schemes in WDM Mesh Networks, ICC 2008. IEEE. |
|
Wu B. and Yeung L.K., ILP Formulation for p-Cycle Construction Based on Flow Conservation, GLOBECOM 2007. IEEE. |
|
Wu B. and Yeung L.K., Monitoring Cycle Design for Fast Link Failure Detection in All-Optical Networks, GLOBECOM 2007. IEEE. |
|
Wu B., Yeung L.K. and Ho P.H., Preconfigured Structures for Survivable WDM Networks, International Conference on Advanced Infocomm Technology (ICAIT) 2008. 2008. |
|
Researcher
: Wu B |
|
List of Research Outputs |
|
Chiu H.S., Wu B. and Yeung L.K., Widest Spanning Tree for Multi-Channel Multi-Interface Wireless Mesh Networks, WCNC 2008. IEEE. |
|
Wu B., Yeung L.K. and Ho P.H., A Comparative Study of Fast Protection Schemes in WDM Mesh Networks, ICC 2008. IEEE. |
|
Wu B. and Yeung L.K., ILP Formulation for p-Cycle Construction Based on Flow Conservation, GLOBECOM 2007. IEEE. |
|
Wu B. and Yeung L.K., Monitoring Cycle Design for Fast Link Failure Detection in All-Optical Networks, GLOBECOM 2007. IEEE. |
|
Wu B., Yeung L.K. and Ho P.H., Preconfigured Structures for Survivable WDM Networks, International Conference on Advanced Infocomm Technology (ICAIT) 2008. 2008. |
|
Researcher
: Wu EX |
|
Project Title: |
Magnetic resonance imaging for biomedical research |
|
Investigator(s): |
Wu EX |
|
Department: |
Engineering Faculty |
|
Source(s) of Funding: |
Seed Funding for New Staff |
|
Start Date: |
02/2004 |
|
Abstract: |
|
To develop and acquire the basic and necessary software and hardware required for the MRI research at HKU. |
|
Project Title: |
Manganese-enhanced Magnetic Resonance Imaging of Rodent Brain Function and Pathology |
|
Investigator(s): |
Wu EX |
|
Department: |
Engineering Faculty |
|
Source(s) of Funding: |
Small Project Funding |
|
Start Date: |
10/2005 |
|
Abstract: |
|
Manganese ions (Mn++) have been recently discovered as a Ca++ analog in neuronal transport that tracks various active neuronal pathways and cortical projections. The primary objective of this project is to explore and develop in vivo Mn-enhanced MRI (MEMRI) technology that is suitable for interrogation of rodent brain functions in normal and pathological states. The specific aims are to (1) establish an optimal high-resolution MEMRI protocol to detect neural activity in various regions of normal rodent brain; (2) define and characterize altered patterns of MEMRI enhancement associated with neonatal hypoxia ischemia in mouse model and glaucoma in rat model. |
|
Project Title: |
MRI of gas-filled microbubbles for microbubble-based therapeutic applications |
|
Investigator(s): |
Wu EX, Xu B, |
|
Department: |
Engineering Faculty |
|
Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
|
Start Date: |
09/2006 |
|
Abstract: |
|
To characterize MRI sensitivity in detecting gas-filled microbubbles; to evaluate the ability of MRI to monitor microbubble cavitation procedure in real time; to explore and evaluate a new gas-filled microbubble design that has enhanced MRI detectability. |
|
Project Title: |
Magnetic Resonance Measurement of Heart and Liver Iron |
|
Investigator(s): |
Wu EX |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
The National |
|
Start Date: |
11/2006 |
|
Abstract: |
|
1. Implementation and optimization of projection-reconstruction, gradient- and spin-echo imaging sequences to map T2 and T2* in test phantoms. The work initially will be performed at 7 Tesla for testing and then implemented for clinical imaging at 3 Tesla. This component of the research work will also include development of necessary software toolkits for image data analysis. 2.Optimization of clinical protocols at 3 Tesla for T2 and T2* measurements using projection-reconstruction, gradient- and spin-echo sequences in the anterior pituitary, pancreas and gonads. 3. Estimates of iron deposition in the anterior pituitary, pancreas and gonads using the optimized MRI protocols will be compared with the results of clinical evaluation of endocrine function in a group of thalassaemia patients with a wide range of body iron burdens. |
|
Project Title: |
Cell labeling for In Vivo MRI Monitoring after Transplantation in Cell Based Therapies |
|
Investigator(s): |
Wu EX |
|
Department: |
Engineering Faculty |
|
Source(s) of Funding: |
Small Project Funding |
|
Start Date: |
01/2007 |
|
Abstract: |
|
In vivo monitoring of stem cells after grafting is essential for a better understanding of their migrational dynamics and differentiation processes and of their therapeutic potential. High-field magnetic resonance imaging (MRI) is potentially capable of tracking transplanted stem cells, and characterizing resulting anatomical, physiological and functional recovery in vivo, intact, and with high spatial resolution. We propose to develop such cellular imaging methodology on a 7 Tesla MRI scanner by (i) designing various techniques to label cells in vitro and quantitatively monitoring their in vivo distribution and activity after transplantation in stem cell therapy in rat stroke model; (ii) characterizing the therapeutic outcome in terms of anatomical structures and physiological functions using various MRI methods. |
|
List of Research Outputs |
|
Chan K.C., Cheung M.M., Cai K.X., Lau
H.F., Tam C.N., Wang S.L., Khong P.L. and Wu E.X., Detection of
radiation-induced brain injuries by multi-modal magnetic resonance imaging, 2008
Proceedings of International Society of Magnetic Resonance in Medicine (.
|
|
Chan K.C., Su H.X., Cai K.X., Chiu C.T.,
Cheng M.M., Wu W.T. and Wu E.X.,
Detection of transient changes in photothrombotic cortical injury by manganese-enhanced
magnetic resonance imaging, 2008 Proceedings of International Society of
Magnetic Resonance in Medicine . |
|
Chan K.C., Fu S.Q., Hui E.S., So K.F. and Wu E.X., Evaluation of the retina and the optic nerve in a rat model of chronic glaucoma using manganese-enhanced magnetic resonance imaging., Neuroimage. 2008, 40: 1166-1174. |
|
Chan K.C., Fu S.Q., So K.F. and Wu E.X., Evaluation of the visual
system in rat models of chronic glaucoma using manganese-enhanced magnetic
resonance imaging, 29th Annual International Conference of the IEEE
Engineering in Medicine and Biology Society (EMBS). |
|
Chan K.C., Hung V.K., Cheung M.M., Cai
K.X., Cheung D.K., Chui C.T., Chan P.M., Zhao X.G., Chung S.K. and Wu E.X., Magnetic resonance imaging
of delayed administration of manganese after transient focal cerebral
ischemia, 2008 Proceedings of International Society of Magnetic Resonance
in Medicine . |
|
Chan K.C., Fu S.Q., So K.F. and Wu E.X., Manganese-enhanced MRI
detects changes in rat eyes in chronic glaucoma models,, 1st Meeting of
Chinese Society of Magnetic Resonance in Medicine. |
|
Cheng K.H. and Wu E.X., Simulation study of
kurtosis measurement in MR diffusion kurtosis imaging, 2008 Proceedings of
International Society of Magnetic Resonance in Medicine. |
|
Cheung J.S., Guo H., Leung J.C., Lai K.N.
and Wu E.X., MRI detection of
peritoneal adhesion with dialysate enhancement, 2008 Proceedings of
International Society of Magnetic Resonance in Medicine. |
|
Cheung M.M., Hui E.S., Wu W.T. and Wu E.X., Comparison of directional
diffusion kurtoses and diffusivities in EAE-induced spinal cord, 2008
Proceedings of International Society of Magnetic Resonance in Medicine. |
|
Cheung M.M., Hui E.S. and Wu E.X., Directional diffusion
kurtosis analysis of rat brain maturation, 2008 Proceedings of
International Society of Magnetic Resonance in Medicine. |
|
Cheung S.C., Guo H., Leung J.C.K., Man K., Lai K.N. and Wu E.X., MRI visualization of rodent liver structure and peritoneal adhesion with dialyzate enhancement, Magnetic Resonance in Medicine. 2008, 59: 1170-4. |
|
Chow A.M., Man K., Cheung J.S. and Wu E.X., Cell dual-labeling for MRI
and bioluminescence imaging, 1st Meeting of Chinese Society of Magnetic
Resonance in Medicine. |
|
Chow A.M., Chiu C.T., Cai K.X. and Wu E.X., MRI monitoring of
ultrasound-targeted microbubbles destruction, 2008 Proceedings of International
Society of Magnetic Resonance in Medicine . |
|
Chow A.M., Man K., Cheung J.S., Chow T.Y.
and Wu E.X., Quantitative
assessment of magnetically labeled luciferase positive cells using multimodality
imaging, 2008 Proceedings of International Society of Magnetic Resonance
in Medicine. |
|
Chow T.Y., Cheung J.S., Wu Y. and Wu E.X., Measurement of common
carotid artery lumen dynamics during cardiac cycle using TrueFISP cine MR
imaging, 2008 Proceedings of International Society of Magnetic Resonance
in Medicine . |
|
Ellis-Behnke R.G., Liang Y., Chan K.C., Tay D.K.C., So K.F. and Wu E.X., Assessing the progression of functional regeneration of the visual system, 6th Picower-RIKEN Symposium, M.I.T., Cambridge USA. 2007. |
|
Ellis-Behnke R.G., Liang Y., Tay D.K.C., So K.F. and Wu E.X., Using a 7 Tesla fMRI and Nano Contrast Agent to Visualize Regeneration of Axons in vivo after Chronic Injury in the Hamster Optic Tract , Society for Neuroscience, San Diego USA . 2007. |
|
Ellis-Behnke R.G., Liang Y.X., Chan
K.C.W., Tay D.K.C., So K.F. and Wu
E.X., Using a 7 Tesla fMRI and a nano contrast agent to visualize
axon regeneration in vivo after chronic optic tract injury in hamsters, 2007
Meeting of Society for Neuroscience. |
|
Guo H., Song A.W. and Wu E.X., A simple but robust
isotropic and background gradient independent diffusion gradient design, 2008
Proceedings of International Society of Magnetic Resonance in Medicine. |
|
Hui E.S., Fu S.Q., Chan K.C., So K.F. and
Wu E.X., DTI monitoring of
optic nerve degeneration in rat experimental glaucoma model, 1st Meeting
of Chinese Society of Magnetic Resonance in Medicine, Dalian, China. |
|
Hui E.S., Fu S.Q., So K.F. and Wu E.X., In vivo longitudinal
assessment of optic nerve degeneration in rat model of glaucoma using
diffusion tensor imaging (invited for special session), 29th Annual
International Conference of the IEEE Engineering in Medicine and Biology
Society (EMBS) . |
|
Hui E.S., Qi L., Cheung M.M., Cheng K.H.,
Helpern J.A., Jensen J.H. and Wu E.X.,
Towards better understanding of brain tissue using directional kurtoses by
orthogonal transformation of diffusion kurtosis tensor, 2008 Proceedings
of International Society of Magnetic Resonance in Medicine . |
|
Lau H.F., Yang J., Khong P.L. and Wu E.X., White matter alteration in
brain hemisphere contralateral to ligation in neonatal rat model of
hypoxic-ischemic injury, 2008 Proceedings of International Society of
Magnetic Resonance in Medicine . |
|
Leung V.Y., Hung S.C., Li L.C., Wu E.X., Luk K.D.K., Chan D. and
Cheung K.M.C., Age-related degeneration of lumbar intervertebral discs in
rabbits revealed by deuterium oxide-assisted MRI (Best General Poster Award),
World Forum for Spine Research – The Intervertebral Disc, Kyoto, Japan.
|
|
Leung V.Y., Hung S.C., Tsui Y.K., Lee
M.K., Li L.C., Lo G.G., Masuda K., Wu
E.X., Luk K., Chan D. and Cheung K., Cell quantity and degenerative
state dependent effect of allogenic messenchymal stem cells on regeneration
of intervertebral disc, Scoliosis Research Society 42nd Annual Conference.
|
|
Leung Y.L., Hung S.C., Li L.C., Wu E.X., Luk K.D.K., Chan D. and Cheung K.M.C., Age-related degeneration of lumbar intervertebral disc in rabbit reveal by deuterium oxide-assisted MRI, Best Poster Award, World Forum for Spine Research - the intervertebral disc, first Japanese meeting, Kyoto, Japan, January 23-26, 2008 . 2008. |
|
Leung Y.L., Hung S.C., Li L.C., Wu E.X. and Luk K.D.K., Age-related degeneration of lumbar intervertebral discs in rabbits revealed by Deuterium Oxide-assisted MRI, Best General Poster Award, World Forum for Spine Research - the intervertebral disc, first Japanese meeting, Kyoto, Japan, January 23-26, 2008. 2008. |
|
Leung Y.L., Hung S.C., Chan Li L.C., Wu E.X., Luk K.D.K., Chan D. and Cheung K.M.C., Age-related degeneration of lumbar intervertebral discs in rabbits revealed by deuterium oxide-assisted MRI, World Forum for Spine Research - the Intervertebral Disc. 2008. |
|
Leung Y.L., Hung S.C., Chan Li L.C., Wu E.X., Luk K.D.K., Chan D. and Cheung K.M.C., Aged-related degeneration of lumbar intervertebral discs in rabbits revealed by deuterium oxide-assisted MRI, World Forum for Spine Research - The Interveretegral Disc, First Japanese Meeting, Kyoto, Japan, January 23-26, 2008. |
|
Leung Y.L., Wu E.X., Luk K.D.K., Chan D. and Cheung K.M.C., Cell quantity and degenerative stage dependent effect of allogeneic mesenchymal stem cells on regeneration of intervertebral disc, 14th International Meeting on Advanced Spine Techniques. 2007. |
|
Li J., Wu Y., Wu E.X., Chan D., Cheah K.S.E. and Zhou Z., Accelerated Senescence in Degenerate Intervertebral Disc of Laminopathy-based Premature Aging Mouse Model, 12th Research Postgraduate Symposium, December 12 & 14, 2007 . 2007. |
|
Li J., Wu Y., Wu E.X., Chan D., Cheah K.S.E. and
Zhou Z.J., Accelerated senescence in intervertebral disc of premature aging
mouse lack Zmpste24, 47th Meeting of American Society for Cell Biology
(ASCB), Washington D. C.. |
|
Luk K.D.K., Leung Y.L., Hung S.C., Tsui Y.K., Lee M.K., Chan Li L.C., Lo G.G., Masuda K., Wu E.X. and Chan D., Allogeneic mesenchymal stem cell transplantation into the intervertebral disc; effect of severity of degeneration and cell number on regeneration, 15th Triennial Congress of Asia Pacific Orthopaedic Association, Seoul, Korea, September 9-13, 2007. |
|
Mi S., Hu B., Hahm K., Luo Y., Hui E.S.,
Yuan Q., Wong W.M., Wang L.I., Su H., |
|
Mi S., Hu B., Hahm K., Luo Y., Hui S.K., Yuan Q.J., Wong W.M., Wang L., Su H., Chu T.H., Guo J., Zhang W., So K.F., Pepinsky B., Shao Z., Graff C., Garber E., Jung V., Wu E.X. and Wu W., LINGO-1 antagonist promotes spinal cord remyelination and axonal integrity in MOG-induced experimental autoimmune encephalomyelitis, Nature Medicine. 2007, 13(10): 1228-1233. |
|
Mi S., Hu B., Hahm K., Luo Y., Hui E.S.,
Yuan Q., Wong M., Wang L.I., Su H., |
|
Ng M.C., Wu E.X., Lau H.F., Hu Y., Lam E.Y.M. and Luk K.D.K., Cervical spinal cord BOLD fMRI study: Modulation of functional activation by dexterity of dominant and non-dominant hands., Neuroimage. 831, 2008, 39: 825. |
|
Qi L., Wang Y. and Wu E.X., D-eigenvalues of diffusion kurtosis tensors, Journal of Computational and Applied Mathematics. 2008. |
|
Tang H., Wu E.X., Kennan R., Liu H. and Williams D.S., Interleaved water and fat imaging and applications to lipid quantitation using the gradient reversal technique, Journal of Magnetic Resonance Imaging. 2007, 26: 1064-1070. |
|
Wang S., Wu E.X., Tam C.N., Lau H.F., Cheung P.T. and Khong P.L., Axial and radial diffusivities as potential markers for characterization of white matter lesions and predicting lesion outcome in a neonatal rat hypoxia-ischemia model, 2nd Joint Scientific Meeting of The Royal College of Radiologists & Hong Kong College of Radiologists and 15th Annual Scientific Meeting of Hong Kong College of Radiologists, Hong Kong, 27-28 October 2007. |
|
Wang S., Tam C., Wu E.X., Lau H.F., Qiu D., Leung L.
and Khong P.L., Longitudinal diffusion tensor MR imaging study of radiation
induced white matter damage in a rat model, 2008 Proceedings of
International Society of Magnetic Resonance in Medicine . |
|
Wang S., Tam C.N., Wu E.X., Lau H.F., Qiu D., Leung L.H.T. and Khong P.L., Longitudinal diffusion tensor MR imaging study of radiation induced white matter damage in a rat model, ISMRM 16th Scientific Meeting & Exhibition, Toronto, Canada, 3-9 May 2008. (Proc Intl Soc Mag Reson Med 2008;16:3268). 2008. |
|
Wang S., Wu E.X., Tam C., Hui E.S. and Khong
P.L., Mild hypoxic-ischemic brain injury in neonatal rats using diffusion
tensor MR imaging: a longitudinal study, 2008 Proceedings of International
Society of Magnetic Resonance in Medicine . |
|
Wang S., Wu E.X., Tam C.N. and Khong P.L., Mild hypoxic-ischemic brain injury in neonatal rats using diffusion tensor MR imaging: a longitudinal study, ISMRM 16th Scientific Meeting & Exhibition, Toronto, Canada,3-9 May 2008. (Proc Intl Soc Mag Reson Med 2008;16:3298). 2008. |
|
Wang S.L., Wu E.X., Tam C.N., Lau H.F., Cheung P.T. and Khong P.L., Axial and radial diffusivities for characterization of white mater injury in a hypoxic-ischemic neonatal rat model, Stroke . 2008. |
|
Wong K.K., Yang E.S., Wu E.X., Tse H.F. and Wong S.T., First-pass myocardial perfusion image registration by maximization of normalized mutual information, Journal of Magnetic Resonance Imaging. 2008, 27: 529-537. |
|
Wu E.X., Tang H., Tong C., Heymsfield S.B. and Vasselli J.R., Anabolic steroid growth effects: assessment with magnetic resonance imaging in a guinea pig model, Steroids. 2008, 73: 430-440. |
|
Wu
E.X., Diffusion tensor analysis of neural
tissue and myocardium, 1st Meeting of Chinese Society of Magnetic
Resonance in Medicine (invited), |
|
Wu
E.X., MR detection of neurodegeneration in
neonatal cerebral hypoxic ischemia using manganese, 14th Chinese Congress
of Radiology (invited). |
|
Wu E.X., Wu Y., Nicholls J.M., Liao S., Lau C.P. and Tse H.F., MR diffusion tensor imaging study of postinfarct myocardium structural remodeling in a porcine model, In: Wu EX, Magn Reson Med. . 58(4), 2007, 687-95. |
|
Wu E.X., Wu Y., Nicholls J.M., Wang J., Liao S., Zhu S., Lau C.P. and Tse H.F., MR diffusion tensor imaging study of postinfarct myocardium structural remodeling in porcine model, Magnetic Resonance in Medicine . 2007, 58: 687-695. |
|
Wu
E.X., MRI of neonatal hypoxic-ischemic brain
injury: a preclinical study (invited), CY Yeung Scientific Symposium (on
Pediatrics), |
|
Wu
E.X., MRI techniques and applications in
basic life sciences – Technology, Caveats and Future Directions (CNCI'08)
Keynote Lecture, First IEEE Workshop on Communication among Neuroscience,
Cognition and Information Technology (CNCI'08). |
|
Wu E.X., Wu Y., Tang H., Wang J., Yang J., Ng M.C., Yang E.S., Chan C.W., Zhu S., Lau C.P. and Tse H.F., Study of myocardial fiber length distribution using magnetic resonance diffusion tensor imaging, Magnetic Resonance Imaging. 2007, 25: 1048-1057. |
|
Wu E.X., Hui E.S. and Cheung J.S., TOF MRA using multi-oblique-stack acquisition, Journal of Magnetic Resonance Imaging. 2007, 26: 432-436. |
|
Wu E.X., Hui E.S., Cheung M.M. and Qi L., Toward better MR characterization of neural tissues using directional diffusion kurtosis analysis, Neuroimage . 2008. |
|
Wu Y., Tse H.F. and Wu E.X., DTI study of postinfarct
myocardium, 1st Meeting of Chinese Society of Magnetic Resonance in
Medicine, |
|
Wu Y. and Wu E.X., In vivo coronary artery
imaging in mice, 29th Annual International Conference of the IEEE
Engineering in Medicine and Biology Society (EMBS). |
|
Wu Y. and Wu E.X., MR coronary artery imaging
in mice, 1st Meeting of Chinese Society of Magnetic Resonance in Medicine.
|
|
Wu Y., Cai K.X., Cheung K.H. and Wu E.X., MR study of postnatal
development of left ventricular myocardium structure and function in rats, 2008
Proceedings of International Society of Magnetic Resonance in Medicine . |
|
Wu Y., Tse H.F. and Wu E.X., Myocardium structural
remodeling with relation of infarct location and size in porcine model using
DTI, 2008 Proceedings of International Society of Magnetic Resonance in
Medicine . |
|
Wu Y., Chow Y.M., Cai K.X. and Wu E.X., Relation of myocardial
fiber structure with cardiac wall motion using DTI and MR tagging, 2008
Proceedings of International Society of Magnetic Resonance in Medicine. |
|
Yang
J. and Wu E.X., Detection
of mild hypoxic-ischemic lesion in neonatal rat using Mn-enhanced MRI, 1st
Meeting of Chinese Society of Magnetic Resonance in Medicine, |
|
Yang J., Jin C.W., Khong P.L., Niu G. and
Wu E.X., Evolution of MR DTI
changes in neonatal rats after mild hypoxic-ischemic insult, 2008
Proceedings of International Society of Magnetic Resonance in Medicine . |
|
Yang J., Liu J.X., Niu G., Liu Y. and Wu E.X., MRI detection of the
migrating neuronal precursors in normal and hypoxic-ischemic neonatal rat
brain by in vivo cell label with MPIO, 2008 Proceedings of International
Society of Magnetic Resonance in Medicine . |
|
Yang
J. and Wu E.X.,
Manganese-enhanced MRI detected the gray matter lesions in the late phase of
mild hypoxic-ischemic injury in neonatal rat., 29th Annual International
Conference of the IEEE Engineering in Medicine and Biology Society (EMBS).
|
|
Yang J. and Wu E.X., Manganese-enhanced MRI detection of gray matter lesion in late phase of mild neonatal hypoxic-ischemic injury, Neuroimage. 2008, 39: 669-679. |
|
Yang J., Khong P.L., Wang Y., Chu A.C.Y., Ho S.L., Cheung P.T. and Wu E.X., Manganese-enhanced MRI detection of neurodegeneration in neonatal hypoxic-ischemic cerebral injury, Magnetic Resonance in Medicine. 2008, 59: 1329. |
|
Zhang X., Lam E.Y.M., Wu E.X. and Wong K.K.Y., Application of Tikhonov regularization to super-resolution reconstruction of brain MRI image, Lecture Notes in Computer Science . 2008. |
|
Zhang X., Lam E.Y.M., Wu E.X. and Wong K.K.Y., Regularized super-resolution reconstruction of brain MRI image, Medical Imaging and Informatics. 2007. |
|
Researcher
: Wu FF |
|
Project Title: |
Planning and
analysis software for |
|
Investigator(s): |
Wu FF |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Electric Power Research Institute (EPRI) - General Award |
|
Start Date: |
06/1997 |
|
Abstract: |
|
To identify factors that help developing countries leapfrog the historical development patterns of the developed countries and move directly to sustainable electrification. |
|
Project Title: |
HKU and Tsinghua University Electric Power Research Institute at Shenzhen |
|
Investigator(s): |
Wu FF, Ni Y |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
The |
|
Start Date: |
01/2000 |
|
Abstract: |
|
To further enhance the University's applied research activities in the areas of electrical energy systems and related fields. |
|
Project Title: |
HKU and Tsinghua University Electric Power Research Institute at Shenzhen |
|
Investigator(s): |
Wu FF, Ni Y |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Finance and Enterprises Office - Finance Committee - General Award |
|
Start Date: |
01/2000 |
|
Abstract: |
|
To further enhance the University's applied research activities in the areas of electrical energy systems and related fields. |
|
Project Title: |
Reliability and stability study of nonlinear status of power systems |
|
Investigator(s): |
Wu FF |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
National Key Basic Research Development Scheme (973 Projects) |
|
Start Date: |
12/2000 |
|
Abstract: |
|
To study nonlinear system theory of large scale power systems and its application to power engineeirng. |
|
Project Title: |
Reliability and stability study of nonlinear status of power systems |
|
Investigator(s): |
Wu FF |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Matching Fund for National Key Basic Research Development Scheme (973 Projects) |
|
Start Date: |
12/2000 |
|
Abstract: |
|
To study nonlinear system theory of large scale power systems and its application to power engineeirng. |
|
Project Title: |
Electrical Load Signature |
|
Investigator(s): |
Wu FF |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
CLP Research Institute - General Award |
|
Start Date: |
01/2004 |
|
Abstract: |
|
To study electrical load signature. |
|
Project Title: |
Dynamic Security Assessment Tool Development |
|
Investigator(s): |
Wu FF |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
CLP Power Hong Kong Ltd. - General Award |
|
Start Date: |
07/2004 |
|
Abstract: |
|
Development of VSC-DSA system in the CLPP DTS/EMS environment to improve CLPP Power system operation quality , promote secure and reliable power supply and prevent CLPP power system collapse caused by emergencies in South China Grid |
|
Project Title: |
Energy portfolio optimization in electricity markets |
|
Investigator(s): |
Wu FF |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
|
Start Date: |
01/2005 |
|
Abstract: |
|
To develop a methodology based on modern portfolio theory for generators in a restructured power system to optimally allocate their output energy in different competitive electricity markets; to develop methodologies for financial risk management of generator's electricity production that can be used in investment decision making. |
|
Project Title: |
A Comprehensive Framework for Generation Expansion Planning in Restructured Power Systems |
|
Investigator(s): |
Wu FF, Zhong J |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
|
Start Date: |
09/2005 |
|
Abstract: |
|
The main objectives of this project are: 1. Development of a theoretical foundation of an option pricing appraoch to generation expansion suitable for fast screening of candidates. 2. Development of an architectural design of a simulation appraoch for detail assessment of specific generation exapansion plans. |
|
Project Title: |
Advanced architecture of future control centers |
|
Investigator(s): |
Wu FF, Ni Y |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
|
Start Date: |
09/2006 |
|
Abstract: |
|
(1) The objectives of this research
project are: • To develop an advanced distributed architecture of future
control centers that is compatible with emerging technologies in software and
internet, and • To test and demonstrate the applicability of such
architecture based on Grid services using a selected application (2) The
control center is the central nerve system of the power system. It senses the
pulse of the power system, adjusts its condition, coordinates its movement,
and provides defense against exogenous events. Control centers are
responsible for safeguarding reliability and ensuring efficiency in power
system operation. A great impetus to the development of control centers
occurred after the US Northeast Blackout of 1965 when the government
Commission investigating the incident recommended that the electric power
industry to apply digital computers more extensively and effectively to
improve the real-time operation of the interconnected power systems. At that
time, the requirements for data acquisition devices and systems, the
associated communications, and the computational power within the control
center were stretched to the limits of what computer and communication
technologies had to offer. Special designed devices and proprietary systems
had to be developed to fulfill power system application needs. Over the
years, information technologies have progressed in leaps and bounds, while
control centers, with their non-standard legacy devices and systems that
could not take full advantage of the new technologies, have remained far
behind. (3) The restructuring of the power industry worldwide in late 1990s
demands a distributed control center that is decentralized in decision
making, integrated in the enterprise business operation, flexible in a
dynamic and uncertain environment, and, above all, open in the sense of
interoperability and portability. The progress in technology development
promises us ultra-fast data acquisition system, such as provided by
GPS-equipped phasor measurement units (PMU), and expanded application
functionality, such as system-wide emergency control, in future control
centers. This proposed research project is aimed at development of an
advanced architecture of future control centers that is (1) compatible with
future developments in information technology, (2) fully decentralized,
integrated, flexible and open, and (3) capable of accommodating ultra-fast
data acquisition systems and greatly expanded applications in power system
operation. (4) Reliable supply of electricity is essential to sound economic
development of a society. As a developing country, |
|
Project Title: |
Research on the
Impact of South China Power Market on South China Power Grid and the |
|
Investigator(s): |
Wu FF, Zhong J |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
|
|
Start Date: |
12/2006 |
|
Abstract: |
|
To study the regional electricity market and analysis the impacts of electricity markets on China South Grid Company and the economy development of the area; to provide suggestions for South-China electricity market structure and policies to facilitate the market and the economy development of South China area. |
|
List of Research Outputs |
|
Du Z., Zhang Y., Liu L., Guan Z.H., Ni Y. and Wu F.F., Structure-preserved power-frequency slow dynamics simulation of interconnected ac/dc power systems with AGC consideration, IET Generation, Transmission & Distribution. 2007, 1, Issue 6: 920-927. |
|
Liu K., Ni Y., Wu F.F. and Bi T.S., Decentralized Congestion Management for Multilateral Transactions Based on Optimal Resource Allocation, IEEE Transactions on Power Systems. 2007, 22, Issue 4: 1835-1842. |
|
Liu Y., Ni Y., Wu F.F. and Cai B., Existence and Uniqueness of Consistent Conjectural Variation Equilibrium in Electricity Markets, Electrical Power & Energy Systems. 2007, 29: 455-461. |
|
Tong X.J. and Wu F.F., A Semismooth |
|
Xie M., Zhong J. and Wu F.F., Multi-year Transmission Expansion Planning using Ordinal Optimization, IEEE Transactions on Power systems. 2007, 22: 1420-1428. |
|
Researcher
: Wu Y |
|
List of Research Outputs |
|
Li J., Wu Y., Wu E.X., Chan D., Cheah K.S.E. and Zhou Z., Accelerated Senescence in Degenerate Intervertebral Disc of Laminopathy-based Premature Aging Mouse Model, 12th Research Postgraduate Symposium, December 12 & 14, 2007 . 2007. |
|
Wu E.X., Wu Y., Nicholls J.M., Liao S., Lau C.P. and Tse H.F., MR diffusion tensor imaging study of postinfarct myocardium structural remodeling in a porcine model, In: Wu EX, Magn Reson Med. . 58(4), 2007, 687-95. |
|
Researcher
: Wu Y |
|
List of Research Outputs |
|
Li J., Wu Y., Wu E.X., Chan D., Cheah K.S.E. and Zhou Z., Accelerated Senescence in Degenerate Intervertebral Disc of Laminopathy-based Premature Aging Mouse Model, 12th Research Postgraduate Symposium, December 12 & 14, 2007 . 2007. |
|
Wu E.X., Wu Y., Nicholls J.M., Liao S., Lau C.P. and Tse H.F., MR diffusion tensor imaging study of postinfarct myocardium structural remodeling in a porcine model, In: Wu EX, Magn Reson Med. . 58(4), 2007, 687-95. |
|
Researcher
: Wu YC |
|
List of Research Outputs |
|
Chen J., Wu Y.C. and Ng T.S., Best paper award, the 7th International Symposium on Communications and Information Technologies (ISCIT) 2007. 2007. |
|
Chen J., Wu Y.C. and Ng T.S., Optimal CFO and Channel Estimation for OFDMA Uplink Using Importance Sampling, Proceedings, Symposium on Communications and Information Technologies (ISCIT 2007), Sydney, Oct.16 - 19, 2007 (This paper received the Best Conference Paper Award.). 2007. |
|
Chen J., Wu Y.C. and Ng T.S., Optimal CFO and Channel Estimation for OFDMA Uplink Using Importance Sampling, the 7th International Symposium on Communications and Information Technologies (ISCIT) 2007. 977-982. |
|
Chen J., Wu Y.C. and Ng T.S., Optimal Joint CFO and Channel Estimation for Multiuser MIMO-OFDM Systems, IEEE ICC 2008. |
|
Chen
J., Wu Y.C. and Ng T.S., Optimal Joint CFO and Channel
Estimation for Multiuser MIMO-OFDM Systems, Proceedings, International
Conference on Communications (ICC 2008), |
|
Chen J., Wu Y.C. and Ng T.S., Optimal Joint CFO and Channel Estimation in Quasi-Synchronized OFDM Systems, Proceedings, IEEE Globecom 2007, Washington DC, 26-30 Nov, 2007. |
|
Chen J., Wu Y.C. and Ng T.S., Optimal joint CFO and channel estimation in quasi-synchronized OFDM systems, IEEE Globecom 2007. 2816-2820. |
|
Chen J., Wu Y.C., Ma S. and Ng T.S., Training Design for Joint CFO and Channel Estimation in Multiuser MIMO OFDM System, Proceedings, IEEE Globecom 2007, Washington DC, 26-30 Nov, 2007. |
|
Chen J., Wu Y.C., Ma S. and Ng T.S., Training design for joint CFO and channel estimation in multiuser MIMO OFDM system, IEEE Globecom 2007. 3008-3012. |
|
Cheng K.Y., Wong Lui K.S., Wu Y.C. and Tam V.W.L., A Greedy Distributed Time Synchronization Algorithm for Wireless Sensor Networks, IEEE ICC 2008. |
|
Noh K.L., Wu Y.C., Qaraqe K. and Suter B., Extension of pairwise broadcasting clock synchronization for multi-cluster sensor networks, EURASIP Journal on Advances in Signal Processing, special issue on Distributed Signal Processing Techniques for Wireless Sensor Networks. 2008, 2008. |
|
Wu Y.C., Associate Editor, IEEE Communications Letters. 2008. |
|
Wu
Y.C., New advances on joint CFO and channel
estimation in single-user and multi-user OFDM systems, IBM research lab, |
|
Wu
Y.C., New advances on joint CFO and channel
estimation in single-user and multi-user OFDM systems, NEC Laboratories |
|
Wu
Y.C., New advances on joint CFO and channel
estimation in single-user and multi-user OFDM systems, Qualcomm, |
|
Wu
Y.C., New advances on joint CFO and channel
estimation in single-user and multi-user OFDM systems, Thomson Corporate
Research, |
|
Wu
Y.C., New advances on joint CFO and channel
estimation in single-user and multi-user OFDM systems, Thomson Corporate
Research, |
|
Researcher
: Xiang H |
|
Project Title: |
Surface Modification of Zinc Oxide Core-Shell Dendron Nanoparticles with Porphyrin Dyes |
|
Investigator(s): |
Xiang H, Lai PT, Che CM |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Small Project Funding |
|
Start Date: |
09/2006 |
|
Abstract: |
|
Zinc oxide (ZnO) nanoparticles or nanocrystals with its wide band gap (3.4 eV) and large exciton binding energy (60 meV) have been of particular interest for catalysts, sensors and optoelectronic devices. Since the luminescence characteristics of ZnO quantum dots are size-dependent, the size control is very important. The strategy to control the particle sizes is to modify the surface of ZnO nanoparticles by encapsulating an organic capping agent on the nanoparticle surfaces such as alkylthiols, polymer micelles, or using coordinating solvent such as dimethyl sulfoxide, N,N-dimethylformamide and tri-n-octylphosphine oxide. Many research groups have focused on the superior optoelectronic properties of quantum-sized organic-inorganic nanocomposites. The hybrid nanocomposites with functional organic caps or dendron not only prevent aggregation of the quantum dots but also possess advantages of the organic cap or dendron. |
|
List of Research Outputs |
|
Xiang H., Xu J., Lai P.T. and Li C., IEEE Trans. Electron Devices, A Physical Model on Scattering at High-k Dielectric/SiO2 Interface of SiGe p-MOSFETs. 2007, ED-54: 3097-3102. |
|
Researcher
: Xu J |
|
List of Research Outputs |
|
Ji F., Xu J. and Lai P.T., A fringing-capacitance model of deep-submicron MOSFET with high-k gate dielectric, Microelectronics Reliability. 2008, 48: 693-697. |
|
Ji F.,
Xu J., Lai P.T., Li C. and Guan J.G., Electrical
Properties of HfTiON Gate-Dielectric Metal-Oxide-Semiconductor Capacitors
with Different Si-Surface Nitridations, Applyed Physics Letters. 2007,
91: 05 |
|
Li C., Zou X., Lai P.T., Xu J. and Chan C.L., Effects of Ti Content and Wet N2 Anneal on Ge MOS Capacitors with HfTiO Gate Dielectric, Microelectronics Reliability. 2008, 48: 526-530. |
|
Li
C., Lai P.T., Xu J. and Zou X., Effects of annealing gas on
electrical properties and reliability of Ge MOS capacitors with HfTiON as
gate dielectric, Proceedings of IEEE International Conference on EDSSC.
|
|
Li C., Lai P.T. and Xu J., Improved reliability of Ge MOS capacitor with HfTiON high-k dielectric by using Ge surface pretreatment in wet NO, Microelectronic Engineering. 2007, 84: 2340-2343. |
|
Tang
W.M., Cheng K.H., Leung C.H., Lai P.T., Xu J. and Che C.M., Improved Performance for OTFT
with HfTiO2 as gate dielectric by N2O annealing, Proceedings of IEEE International
Conference on EDSSC. |
|
Xiang H., Xu J., Lai P.T. and Li C., IEEE Trans. Electron Devices, A Physical Model on Scattering at High-k Dielectric/SiO2 Interface of SiGe p-MOSFETs. 2007, ED-54: 3097-3102. |
|
Xu J., Li Y.P., Lai P.T., Chen W.B. and Xu S.G., A 2-D Threshold-Voltage Model for Small MOSFET with Quantum-Mechanical Effects, Microelectronics Reliability. 2008, 48: 23-28. |
|
Xu
J., Ji F.,
Li C., Guan J.G. and Liu Y.R.,
Improved Electrical Properties of Metal-Oxide-Semiconductor Capacitor with
HfTiON Gate Dielectric by Using HfSiON Interlayer, Applied Physics Letters.
2007, 91: 15 |
|
Xu J., Ji F. and Lai P.T., Influence of Sidewall Spacer on Threshold Voltage of MOSFET with High-k Gate Dielectric, Microelectronics Reliability. 2008, 48: 181-186. |
|
Zou X., Xu J., Lai P.T. and Li C., Effects of Post deposited Annealing on Ge MOS Capacitors with Sub-nm EOT HfTiO Gate Dielectric, The 3rd IEEE International Conference of Nano/Micro Engineered and Molecular Systems (NEMS). Sanya, 2008, 362-365. |
|
Researcher
: Xu W |
|
List of Research Outputs |
|
Xiang L., Ye Z., Xu X., Chang C., Xu W. and Hung Y.S., Direction of arrival estimation for uniform circular array based on fourth-order cumulants in the presence of unknown mutual coupling, IET Microwaves, Antennas & Propagation. 2008, 2: 281-287. |
|
Xu
W., Chang
C., Hung Y.S. and Fung P.C.W., Asymptotic Properties of
Order Statistics Correlation Coefficient in the |
|
Xu W., Chang C., Hung Y.S., Kwan S.K. and Fung P.C.W., Order statistics correlation coefficient as a novel association measurement with applications to biosignal analysis, IEEE Transactions on Signal Processing. IEEE, 2007, 55: 5552-5563. |
|
Xu W., Chang C., Hung Y.S. and Fung P.C.W., Quantifying organization during atrial fibrillation based on order statistics correlation coefficient, ITAB 2008/ISSSBHE2008. |
|
Researcher
: Yan B |
|
Project Title: |
Non conventional nanofabrication methods and microfluidic devices |
|
Investigator(s): |
Yan B |
|
Department: |
Chemistry |
|
Source(s) of Funding: |
Seed Funding Programme for Basic Research |
|
Start Date: |
09/2005 |
|
Abstract: |
|
This project will be conducted at HKU’s Nanotechnology Research Institute. The objective of the program is to develop non conventional nanofabrication technologies and microfluidic devices for advanced research and industrial applications. Research activities will focus on following three areas: 1) to develop non conventional nanofabrication methods that allow the realization of various microchannels and integrated microsystems on a large scale and at low cost; 2) to design and fabricate microfluidic devices suitable for new experiences in chemistry and biology; 3) to apply these technologies to biotechnology, biomedical research and clinical diagnostics. |
|
Project Title: |
Novel organic bipolar devices |
|
Investigator(s): |
Yan B |
|
Department: |
Chemistry |
|
Source(s) of Funding: |
Seed Funding Programme for Basic Research |
|
Start Date: |
01/2007 |
|
Abstract: |
|
Organic electronics are beginning to make significant inroads into the commercial world. Interest in organic electronics stems from the potential for producing low-cost, large-area, lightweight and flexible devices which can integrate functionalities currently requiring more expensive conventional semiconductors and components. The development of novel organic electronic devices, especially integrated organic electronic devices, is not only a gateway for a variety of applications, but also of great relevance for the general purpose of achieving highly integrated optoelectronic system. This proposal proposes two novel organic bipolar devices: 1) high efficiency white organic light-emitting devices (WOLEDs) with simplified device architecture 2) all-organic heterojunction bipolar transistors (HBTs). One of the objectives is to develop WOLEDs with high brightness, high efficiency, and long lifetime for full-color flat-panel display, backlighting and alternative lighting. Another objective is to develop all- organic HBTs with good dc performance for OLEDs' drive circuits or as new light-emitting devices. The purpose of the proposed project is as follows: 1)White organic light-emitting devices (WOLEDs) are of great importance because they can be used in full-color flat-panel displays with color filters, backlighting and as alternative lighting sources. The challenges facing WOLED technology stem mainly from the fact that fluorescence or phosphorescence emission from typical organic materials only spans about one third of the visible spectrum. To achieve balanced white light emission, researchers have to use multiply doped emissive layer architecture[1] or multiple emissive layer architecture [2-3]. However, multiply doped emissive layer architecture is problematic because energy readily transfers from the higher energy blue dye to the green dye and from the green dye to the red dye[4]. The multiple emissive layer architecture can overcome the energy transfer problem, but the device architecture is considerably more complicated and expensive to fabricate, due to the large number of materials and interfaces compared with monochromatic OLEDs [5]. We therefore propose to develop phosphorescent WOLEDs with simplified device architecture, especially single emissive layer and single dopant architecture. The realization of high efficiency phosphorescent WOLEDs with simplified architecture will not only improve the quality of flat-panel display, but will also simplify fabrication complexity, and significantly reduce the fabrication costs. 2) Organic thin-film transistors (OTFTs) are of interest for a variety of large-area electronic applications, such as display, sensors, and electronic barcodes. The challenges facing organic thin-film transistor (OTFT) technology stem mainly from low mobility of carriers in organic materials, which limits the speed of the OTFTs. In contrast with OTFTs, organic HBTs have several advantages, such as excellent high-speed performance, larger current-handling capabilities and higher transconductance. Therefore organic HBTs are more suitable as a driver of OLEDs. On the other hand, the fabrication process of OLEDs and organic HBTs is completely compatible (vertical multilayer growth). It may become possible to integrate WOLEDs and OHBTs in an optoelectronic system or a device. In addition, we expect that organic HBTs, like OLEDs, may possess light-emitting ability. If so, all-organic HBTs represent a novel class of organic devices, and could pave the way for the realization of nanoscale light sources and highly integrated optoelectronics. [1] B. W. D’Andrade, R. J. Holmes, S. R. Forrest, Adv. Mater. 2004, 16, 624. [2] B. W. D’Andrade, M. E. Thompson, S. R. Forrest, Adv. Mater. 2002, 14, 147. [3] S. Tokito, T. Lijima, T. Tsuzuki, F. Sato, Appl. Phys. Lett. 2003, 83, 2459. [4] V. Adamovich, J. Brooks, A. Tamayo, A. M. Alexander, P. I. Djurovich, M. E. Thompson, C. Adachi, B. W. D’Andrade, S. R. Forrest, New J. Chem. 2002, 26, 1171. [5] B. W. D’Andrade, R. J. Holmes, S. R. Forrest, Adv. Mater. 2004, 16, 1585. |
|
Researcher
: Yang ES |
|
Project Title: |
The Jockey Club Magnetic Resonance Imaging (MRI) Engineering Centre |
|
Investigator(s): |
Yang ES |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
The |
|
Start Date: |
01/2004 |
|
Abstract: |
|
To carry out clinical research studies on: (a) large scale clinical studies of aging and dementia, (b) cardiac MRI. |
|
List of Research Outputs |
|
Tang M.Y., Kacher D., Lam E.Y.M., Brodsky M., Jolesz F. and Yang E.S., Multi-modal imaging: Simultaneous MRI and Ultrasound imaging for carotid arteries visualization, 29th International Conference of the IEEE Engineering in Medicine and Biology Society. 2007. |
|
Wong K.K., Yang E.S., Wu E.X., Tse H.F. and Wong S.T., First-pass myocardial perfusion image registration by maximization of normalized mutual information, Journal of Magnetic Resonance Imaging. 2008, 27: 529-537. |
|
Wu E.X., Wu Y., Tang H., Wang J., Yang J., Ng M.C., Yang E.S., Chan C.W., Zhu S., Lau C.P. and Tse H.F., Study of myocardial fiber length distribution using magnetic resonance diffusion tensor imaging, Magnetic Resonance Imaging. 2007, 25: 1048-1057. |
|
Zheng Y., Chan C.C., Li G., Lam E.Y.M. and Yang E.S., A study of femoral artery by twin drivers in Magnetic Resonance Interference Elastography, 29th International Conference of the IEEE Engineering in Medicine and Biology Society. 2007. |
|
Zheng Y., Li G., Chen M., Hu S., Zhao X., Ehman L., Lam E.Y.M. and Yang E.S., Magnetic Resonance Elastography with twin pneumatic drivers for wave compensation, 29th International Conference of the IEEE Engineering in Medicine and Biology Society. 2007. |
|
Researcher
: Yang G |
|
List of Research Outputs |
|
Li V.O.K., Yang G., Shen D. and Shao W., Best Innovation & Research (Open) Bronze Award, Hong Kong ICT Awards 2007, Hong Kong Information Technology Federation Limited (HKITF). 2007. |
|
Yang G., Shen D. and Li V.O.K., Adaptive Video Transmission for OFDMA Systems, International Conference on Multimedia & Expo. 2007. |
|
Yang
G., Shen
D., Shen D. and Li V.O.K., Adaptive video transmission
for OFDM systems, Proc. IEEE International Conference on Multimedia and
Expo. |
|
Researcher
: Yang J |
|
Project Title: |
In vivo MRI Investigation of Nerve Degeneration and Regeneration Using Quantitative Diffusion Tensor Imaging |
|
Investigator(s): |
Yang J, Wu EX |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Small Project Funding |
|
Start Date: |
10/2006 |
|
Abstract: |
|
Diffusion tensor imaging (DTI) takes advantage of the anisotropic nature of water diffusion in biological systems toextract detailed micro-structural information. Very recently, this technique has been widely applied for the evaluation of CNS development and pathology. Diffusion anisotropy and apparent diffusion coefficient (ADC) changes in the brain white matter of patients with multiple sclerosis (MS) have been reported. However, the exact mechanisms underlying these diffusion changes, as well as the sensitivity and specificity, have not been adequately determined. Using the recently acquired 7T animal MRI scanner at HKU, this pilot project aims to develop robust and highly quantitative DTI techniques to elucidate the changes in the diffusion properties of white matter under pathological changes, as in vivo biomarkers for nerve degeneration or regeneration. |
|
List of Research Outputs |
|
Yang
J. and Wu
E.X., Detection of mild hypoxic-ischemic lesion in neonatal rat using
Mn-enhanced MRI, 1st Meeting of Chinese Society of Magnetic Resonance in
Medicine, |
|
Yang
J. and Wu
E.X., Manganese-enhanced MRI detected the gray matter lesions in the late
phase of mild hypoxic-ischemic injury in neonatal rat., 29th Annual
International Conference of the IEEE Engineering in Medicine and Biology Society
(EMBS). |
|
Yang J. and Wu E.X., Manganese-enhanced MRI detection of gray matter lesion in late phase of mild neonatal hypoxic-ischemic injury, Neuroimage. 2008, 39: 669-679. |
|
Yang J., Khong P.L., Wang Y., Chu A.C.Y., Ho S.L., Cheung P.T. and Wu E.X., Manganese-enhanced MRI detection of neurodegeneration in neonatal hypoxic-ischemic cerebral injury, Magnetic Resonance in Medicine. 2008, 59: 1329. |
|
Researcher
: Ye S |
|
List of Research Outputs |
|
Ye S. and Chau K.T., Chaoization of DC motors for industrial mixing, IEEE Transactions on Industrial Electronics. 2007, 54(4): 2024-2032. |
|
Researcher
: Yeung KH |
|
List of Research Outputs |
|
Yeung K.H. and Kwok Y.K., Energy Efficient Media Streaming in Wireless Hybrid Peer-to-Peer Systems, Proceedings of the 22nd IEEE International Parallel and Distributed Processing Symposium (IPDPS 2008), Miami, Florida, USA. 2008. |
|
Yeung K.H. and Kwok Y.K., Game Theoretic Peer Selection for Resilient Peer-to-Peer Media Streaming Systems, Proceedings of the 28th International Conference on Distributed Computing Systems (ICDCS 2008), Beijing, China. 2008. |
|
Yeung K.H. and Kwok Y.K., Game-Theoretic Scalable Peer-to-Peer Media Streaming, Proceedings of the 22nd IEEE International Parallel and Distributed Processing Symposium (IPDPS 2008), Miami, Florida, USA. 2008. |
|
Researcher
: Yeung LK |
|
Project Title: |
Restorable Dynamic Routing using Shared-Path Protection |
|
Investigator(s): |
Yeung LK |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
|
Start Date: |
12/2004 |
|
Abstract: |
|
To design efficient restorable dynamic routing algorithms that are optimized for realizing a highly fault-resilient network. |
|
List of Research Outputs |
|
Chiu
H.S. and Yeung L.K., On
Optimization of Joint Channel Assignment and Routing in |
|
Chiu H.S., Wu B. and Yeung L.K., Widest Spanning Tree for Multi-Channel Multi-Interface Wireless Mesh Networks, WCNC 2008. IEEE. |
|
Hu B. and Yeung L.K., Achieving 100% Throughput in Two-stage Switch with Feedback, HPSR 2008. |
|
Hu B. and Yeung L.K., On Joint Sequence Design for Feedback-based Two-stage Switch Architecture, HPSR 2008. |
|
Li J., Yeung L.K. and Chan C.K., Efficient Path Protection in Bi-directional WDM Systems, Computer Networks. Hindawi, 2008. |
|
Tam V.W.L., Kwan A.C.M., Leung C.H., Yeung L.K. and Liao Z., An Interactive Simulation Game to Enhance Learners’ Experience On Mobile Devices , Proceedings of the International Conference on ICT in Teaching and Learning (ICT 2007). 2007. |
|
Wu B., Yeung L.K. and Ho P.H., A Comparative Study of Fast Protection Schemes in WDM Mesh Networks, ICC 2008. IEEE. |
|
Wu B. and Yeung L.K., ILP Formulation for p-Cycle Construction Based on Flow Conservation, GLOBECOM 2007. IEEE. |
|
Wu B. and Yeung L.K., Monitoring Cycle Design for Fast Link Failure Detection in All-Optical Networks, GLOBECOM 2007. IEEE. |
|
Wu B., Yeung L.K. and Ho P.H., Preconfigured Structures for Survivable WDM Networks, International Conference on Advanced Infocomm Technology (ICAIT) 2008. 2008. |
|
Yeung
L.K., Adjunct Professor, University of
Electronic Science and Technology of |
|
Yeung
L.K., Joint Channel Assignment and Routing
for Multi-Channel Multi-Interface Wireless Networks , University of
Electronic Science and Technology of |
|
Zhou K., Yeung L.K. and Li V.O.K., On performance modeling of TCP New-reno, Globecom 2007. IEEE. |
|
Researcher
: Yin S |
|
List of Research Outputs |
|
Yin S., Chan S.C. and Tsui K.M., On the design of nearly-PR and PR FIR cosine modulated filter banks having approximate cosine-rolloff characteristics, IEEE Trans. Circuits for Systems II. 2008, vol. 55, no. 6: pp. 571-575. |
|
Researcher
: Yu ACH |
|
List of Research Outputs |
|
Arshadi R., Yu A.C.H. and Cobbold R.S.C., Coded excitation methods for ultrasound harmonic imaging, Canadian Acoustics. 2007, 35(2): 35-46. |
|
Lovstakken L., Yu A.C.H. and Torp H., In-vivo investigation of filter order influence in eigen-based clutter filtering for color flow imaging, IEEE Ultrasonics Symposium. 2007, 2429-2432. |
|
Yu A.C.H., Cohen-Solal E., Raju B.I. and Ayati S., An automated carotid pulse assessment approach using Doppler ultrasound, IEEE Transactions on Biomedical Engineering. 2008, 55: 1072-1081. |
|
Yu A.C.H. and Lovstakken L., Eigen-based clutter filters for color flow imaging: single-ensemble vs. multi-ensemble approaches, IEEE Ultrasonics Symposium. 2007, 1101-1104. |
|
Yu A.C.H., Johnston K.W. and Cobbold R.S.C., Frequency-based signal processing in ultrasound color flow imaging, Canadian Acoustics. 2007, 35(2): 11-23. |
|
Yu
A.C.H., Recent Developments in Doppler
Ultrasound Research: An Engineering Perspective, |
|
Yu A.C.H. and Cobbold R.S.C., Single-ensemble-based eigen-processing methods for color flow imaging—Part I. The Hankel-SVD filter, IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Contrrol. 2008, 55: 559-572. |
|
Yu A.C.H. and Cobbold R.S.C., Single-ensemble-based eigen-processing methods for color flow imaging—Part II. The Matrix Pencil estimator, IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 2008, 55: 573-587. |
|
Researcher
: Yu C |
|
List of Research Outputs |
|
Wang
J., Chau K.T., Jiang J. and Yu C., Design and analysis of a
transverse flux permanent magnet machine using three dimensional scalar
magnetic potential finite element method, AIP Journal of Applied Physics.
2008, 103(7): |
|
Yu C., Chau K.T., Liu X. and Jiang J., A flux-mnemonic permanent
magnet brushless motor for electric vehicles, AIP Journal of Applied
Physics. 2008, 103(7): |
|
Yu C., Chau K.T., Liu X. and Jiang J., A flux-mnemonic permanent magnet brushless motor for electric vehicles, Magnetism and Materials Conference. 2007, CD-ROM. |
|
Yu C., Chau K.T. and Chan C.C., Thermoelectric waste-heat energy recovery for hybrid electric vehicles, International Electric Vehicle Symposium. 2007, CD-ROM. |
|
Zhu
X., Chau K.T., Cheng M. and Yu C., Design and control of a
flux-controllable stator-PM brushless motor drive, AIP Journal of Applied
Physics. 2008, 103(7): |
|
Researcher
: Yuk TTI |
|
List of Research Outputs |
|
Jin L., Choy W.C.H., Leung Y.P., Yuk T.T.I., Ong H.C. and Wang J.B., Synthesis and Analysis of abnormal Wurtzite ZnSe nanowheels, Journal Apply Physics. 2007, 102: 044302. |
|
Jin L., Choy W.C.H., Leung Y.P., Yuk T.T.I., Ong H.C. and Wang J.B., Synthesis and Analysis of abnormal Wurtzite ZnSe nanowheels, Virt. J. Nanoscale Sc. Technol.. 2007, 044302. |
|
Jin
L., Wang J., |
|
Lai M.F., Kwok C.H., Yuk T.T.I. and Wong K.K.Y., Picosecond All-Optical Logic Gates (XOR, OR, NOT and AND) in a Fiber Optical Parametric Amplifier, Opt. Fiber Comm. Conf.. 2008. |
|
Lai
M.F., Kwok O.C.H., Yuk T.T.I. and Wong K.K.Y., Picosecond All-Optical
Logic Gates (XOR, OR, NOT and AND) in a Fiber Optical Parametric Amplifier, Optical
Fiber Comm. Conference. |
|
Leung Y.P., Choy W.C.H. and Yuk T.T.I., Linear Resistive Humidity Sensor Based on Quasi ID ZnSe Nanostructures, Chem. Phy. Lett.. 2008, 457: 198-201. |
|
Zhang Z., Dai X., Cheung S.W. and Yuk T.T.I., A Common Function of Different Union Bounds for Optimization and BER Evaluation of Space-Time codes, Wireless Personal Communications . Springer, 2008, 46: 493-506. |
|
Zhang Z., Cheung S.W. and Yuk T.T.I., Exact Evaluation of Block-Error Rate Using Correct Probability for for Space-Time Codes, IEEE International Symposium on Information Theory 2007. |
|
Researcher
: Yung NHC |
|
Project Title: |
Visual resolution of multiple severely occluded vehicles in monocular image sequences |
|
Investigator(s): |
Yung NHC |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
|
Start Date: |
09/2005 |
|
Abstract: |
|
The project objectives are to: 1. Generalize our method for multiple vehicles. 2. Develop a suitable method to segment the SOV sub-images, and evaluate it against published methods. 3. Develop a suitable classifier to classify the segmented regions into vehicle parts. 4. Develop a feature-base of vehicle parts from un-occluded vehicles and published figures. 5. Describe the relationships between vehicle parts; and classify the description into vehicle types. 6. Synthesize missing parts from the feature-base and reconstruct the SOV. |
|
Project Title: |
Obstacle behavior prediction for vehicle collision avoidance in dynamically changing environments |
|
Investigator(s): |
Yung NHC |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
|
Start Date: |
01/2007 |
|
Abstract: |
|
The purpose of this research is to develop a method for predicting obstacle behaviors for autonomous vehicle to perform collision avoidance in environments of moving obstacles (e.g. humans, other autonomous vehicles) as well as stationary fixtures (e.g. walls, barriers). The key issues are: 1. Collision avoidance (CA) in a dynamically changing environment (DCE) requires the vehicle to navigate through a cluster of obstacles without causing any collisions. In general, this can be achieved by fusing real-time sensory information of the environment and interpreting it based on exploitation according to some known policies, or exploration when such policies are unavailable. This calls for learning methods such as reinforcement learning (RL), supervised learning or evolutionary algorithms to learn the policies, although it may take a long time to explore or evolve without guarantee of a complete policy set. 2. Among the various learning methods, RL has attracted wide interest as it maximizes a reward function when mapping an environment to action. Moreover, optimal policies can be derived by simplifying RL into a Markov Decision Process, which can be solved by methods such as Q-learning. However, current approaches seldom consider the response of the environment, as a result of vehicle actions. Besides, most methods treat the DCE as snapshots of static unknown environments, without considering temporal behavior of the obstacles. Furthermore, evaluations are often too simplistic, involving only a few obstacles, which can hardly represent the complexity of real world CA.3. So far, we have developed a Q-learning based RL method that incorporates the response of the environment when determining actions, which we called it Double Action Q-learning (DAQL). After evaluated the new approach in a 20x20 simulation grid with up to 100 randomly moving obstacles, it is found that it adopts a near-shortest path in most episodes, and its sum-of-reward converges rapidly. We have also studied obstacle prediction accuracy (without actually having a prediction method), and found that it can potentially improve CA performance, especially when obstacle density is high.4. Based on our previous research, we are keen to extend the idea of DAQL and develop an obstacle behavior prediction model/method within the RL framework, and improve our existing simulation into a more realistic environment that has higher resolution in velocity and steering angle values and different types of obstacles, of which some will have CA capability. Extensive simulations and tests of the proposed method will be conducted.The project objectives are: 1. Further refine the DAQL idea by investigating its learning convergence, multiple obstacle policy, obstacle significance, quantization resolution and balance between destination seeking and collision avoidance. 2. Develop a suitable method for predicting/modeling the temporal behavior of obstacles. 3. Develop a realistic simulation environment for evaluation of the proposed method against other existing methods.The outcome of the proposed project will be relevant to research in learning, prediction, collision avoidance, and ITS. The knowledge gain from this project will be essential for achieving high standard of safety in future autonomous road vehicles, maneuvering of mobile robots in crowd, and performing corporative tasks by different or similar mobile machines (robot soccer), as well as beneficial to the introduction of domestic robots, entertainment robots and military robots in the future. |
|
List of Research Outputs |
|
He X.
and Yung N.H.C., A corner
detector based on global and local curvature properties, Optical
Engineering - a journal of SPIE. |
|
He X.,
Yung N.H.C., Chow K.P., Chin F.Y.L., Chung H.Y., Wong K.K.Y. and Tsang K.S.H., Watershed
Segmentation with Boundary Curvature Ratio Based Merging Criterion, 9th
IASTED International Conference on Signal and Image Processing. |
|
Lai H.S. and Yung N.H.C., GSM tracking device
based on mobile network and radio frequency communication, 利用流動網絡及無線電通訊的個人定位追蹤裝置及方案, Patents Registry, Intellectual Property Department, The
Government of HKSAR. |
|
Lam W.L.W., Pang C.C. and Yung N.H.C., Vehicle component identification using multi-scale texture couriers, IEEE Transactions on Intelligent Transportation Systems. IEEE, 2007, 8 (4): 681-694. |
|
Liu C. and Yung N.H.C., Multi-scale feature density approximation for object representation and tracking, IASTED Signal Processing, Pattern Recognition and Applications. IASTED, 2008, 6. |
|
Ngai C.K. and Yung N.H.C., Automated vehicle overtaking based on a multiple-goal reinforcement learning framework, Proceedings of the IEEE ITSC. IEEE, 2007, 6. |
|
Ngai
C.K. and Yung N.H.C.,
Fast-maneuvering target seeking based on double-action Q-learning, Proceedings
of Machine Learning and Data Mining in Pattern Recognition. |
|
Ngan Y.T., Pang G.K.H. and Yung N.H.C., Motif-based Defect Detection for Patterned Fabric, Pattern Recognition. Elsevier Ltd, Pattern Recognition Society, 2007, 41 (6): 1878-1894. |
|
Ngan Y.T., Pang G.K.H. and Yung N.H.C., Patterned fabric defect detection using a motif-based approach, IEEE International Conference on Image Processing. 2007. |
|
Pang C.C. and Yung N.H.C., A Method for accurate vehicle count in the presence of multiple vehicle occlusions in traffic images, IEEE Transactions on Intelligent Transportation Systems. IEEE, 2007, 8 (3): 441-459. |
|
Pang C.C., Tan Z. and Yung N.H.C., A methodology for resolving severely occluded vehicles based on component-based multi-resolution relational graph matching, Proceedings of IEEE International Conference on Machine Vision. IEEE, 2007, 6. |
|
Wang L. and Yung N.H.C., Extraction of moving human objects from their background using bi-thresholding and boundary evaluation, Proceedings of IASTED International Conference on Signal and Image Processing. IASTED, 2007, 522-527. |
|
Yung N.H.C., Evaluation report on the accuracy and reliability of the front-end mobile unit (FEMU-III), mSolution Consultant Limited. 2008, 40. |
|
Yung N.H.C., Evaluation report on the accuracy and reliability of the front-end mobile unit (FEMU-M813), mCommerce Online Limited. 2008, 45. |
|
Yung N.H.C., Expert report on HCPI No.485 of 2001 Yip Chung Man Vs. Secretary for Justice on behalf of Commissioner of Police, Christine M. Koo & Ip Solicitors & Notaries. 2008, 20. |
|
Yung N.H.C., Expert report on the operation of the Secure Media Access Station (SMAS), Parking Systems Limited. 2008, 20. |
|
Yung N.H.C., Special issue on quality control by artificial vision , Journal of Electronic Imaging. 2007. |
|
Yung N.H.C., Vehicle speed measurement using cross ratio – DW6, Parking Systems Limited. 2008, 1. |
|
Yung N.H.C., Vehicle speed measurement using cross ratio – EE680, Parking systems limited. 2008, 1. |
|
Yung N.H.C., Vehicle speed measurement using cross ratio – FP3864, Parking Systems Limited. 2008, 1. |
|
Yung N.H.C., Vehicle speed measurement using cross ratio – JX3912, Parking Systems Limited. 2008, 1. |
|
Yung N.H.C., Vehicle speed measurement using cross ratio – KB7515, Parking Systems Limited. 2008, 1. |
|
Yung N.H.C., Vehicle speed measurement using cross ratio – LG8580, Parking Systems Limited. 2008, 1. |
|
Yung N.H.C., Vehicle speed measurement using cross ratio – MK5927, Parking Systems Limited. 2008, 1. |
|
Yung N.H.C., Vehicle speed measurement using cross ratio – MY3713, Parking Systems Limited. 2008, 1. |
|
Researcher
: Zhang D |
|
List of Research Outputs |
|
Chau K.T., Zhang D., Jiang J. and Jian L., Transient analysis of coaxial magnetic gears using finite element co-modeling, Magnetism and Materials Conference. 2007, CD-ROM. |
|
Chau
K.T., Zhang D., Jiang J. and Jian L., Transient analysis of
coaxial magnetic gears using finite element comodeling, AIP Journal of
Applied Physics. 2008, 103(7): |
|
Jian L., Chau K.T., Zhang D., Jiang J. and Wang Z., A magnetic-geared outer-rotor permanent-magnet brushless machine for wind power generation, IEEE Industry Applications Society Annual Meeting. 2007, CD-ROM. |
|
Niu S., Chau K.T., Zhang D., Jiang J. and Wang Z., Design and control of a doubly-stator permanent-magnet motor drive for electric vehicles, IEEE Industry Applications Society Annual Meeting. 2007, CD-ROM. |
|
Niu S., Chau K.T., Zhang D. and Jiang J., Transient analysis of a double-stator permanent magnet brushless motor drive with scalar control, Magnetism and Materials Conference. 2007, CD-ROM. |
|
Researcher
: Zhang H |
|
List of Research Outputs |
|
Zhang H., Dai Y., Ma D. and Choy W.C.H., High efficiency trandem organic light-emitting devices with A1/WO3/Au interconnecting layer, Applied Physics Letters. 2008, 92: 1009907. |
|
Zhang H. and Choy W.C.H., Highly efficient organic light-emitting devices with surface-modified metal anode by Vanadium pentoxide, Journal Physics D (fast track). 2008, 41: 062003-062005. |
|
Zhang H. and Choy W.C.H., Independently controlled high efficiency stacked organic light-emitting devices with A1/WO3/Au interconnecting layer, Journal Physics D.. 2008, 41: 105108-105113. |
|
Zhang H. and Choy W.C.H., Real-Time Color-Tunable Electroluminescence from Stacked organic LEDs Using Independently Addressable Middle Electrode, IEEE Photon Technol. Letter. 2008, 20: 1154-1156. |
|
Researcher
: Zhang L |
|
List of Research Outputs |
|
Zhang X., Zhang L., Shan X.M. and Li V.O.K., An adaptive resource-based probabilistic search algorithm for P2P networks, IEICE Transactions. 2007, E90-B: 1631-1639. |
|
Zhang X., Hong J., Zhang L., Shan X.M. and Li V.O.K., CP-TDMA: Coloring- and probability-based TDMA scheduling for wireless and hoc networks, IEICE Transactions on Communications. 2008, E91-B: 322-326. |
|
Researcher
: Zhang X |
|
List of Research Outputs |
|
Zhang X. and Lam E.Y.M., Regularization in super-resolution reconstruction of biomedical images using gradient vector field, IEEE International Conference on Information Technology and Applications in Biomedicine. 2008, 98-100. |
|
Zhang X., Lam E.Y.M., Wu E.X. and Wong K.K.Y., Regularized super-resolution reconstruction of brain MRI image, Medical Imaging and Informatics. 2007. |
|
Researcher
: Zhang Z |
|
List of Research Outputs |
|
Zhang Z., Dai X., Cheung S.W. and Yuk T.T.I., A Common Function of Different Union Bounds for Optimization and BER Evaluation of Space-Time codes, Wireless Personal Communications . Springer, 2008, 46: 493-506. |
|
Zhang Z., Chan S.C. and Tsui K.M., A recursive frequency estimator using linear prediction and a Kalman-filter-based iterative algorithm, IEEE Transaction on Circuits and Systems II. 2008, vol. 56, no. 6: pp. 576-580. |
|
Zhang Z., Cheung S.W. and Yuk T.T.I., Exact Evaluation of Block-Error Rate Using Correct Probability for for Space-Time Codes, IEEE International Symposium on Information Theory 2007. |
|
Researcher
: Zhang Z |
|
List of Research Outputs |
|
Zhang Z., Dai X., Cheung S.W. and Yuk T.T.I., A Common Function of Different Union Bounds for Optimization and BER Evaluation of Space-Time codes, Wireless Personal Communications . Springer, 2008, 46: 493-506. |
|
Zhang Z., Chan S.C. and Tsui K.M., A recursive frequency estimator using linear prediction and a Kalman-filter-based iterative algorithm, IEEE Transaction on Circuits and Systems II. 2008, vol. 56, no. 6: pp. 576-580. |
|
Zhang Z., Cheung S.W. and Yuk T.T.I., Exact Evaluation of Block-Error Rate Using Correct Probability for for Space-Time Codes, IEEE International Symposium on Information Theory 2007. |
|
Researcher
: Zheng T |
|
List of Research Outputs |
|
Zheng T. and Choy W.C.H., An Effective Intermediate A1/Au Electrode for Stacked Color-Tunable Organic Light Emitting Devices, Apply Physics A.. 2008, 91: 501-506. |
|
Zheng T. and Choy W.C.H., An
Effective Intermediate Al/Au Electrode for Stacked Color-Tunable Organic
Light Emitting Devices, SPIE Europe, |
|
Zheng T. and Choy W.C.H., High-efficiency blue fluorescent organic light emitting devices based on double emission layers, Journal Physics D.. 2008, 41: 055103-055105. |
|
Researcher
: Zheng Y |
|
List of Research Outputs |
|
Zheng Y., Chan C.C., Li G., Lam E.Y.M. and Yang E.S., A study of femoral artery by twin drivers in Magnetic Resonance Interference Elastography, 29th International Conference of the IEEE Engineering in Medicine and Biology Society. 2007. |
|
Zheng Y., Li G., Chen M., Hu S., Zhao X., Ehman L., Lam E.Y.M. and Yang E.S., Magnetic Resonance Elastography with twin pneumatic drivers for wave compensation, 29th International Conference of the IEEE Engineering in Medicine and Biology Society. 2007. |
|
Researcher
: Zhong H |
|
List of Research Outputs |
|
Zhong H. and Hung Y.S., Multi-stage 3D reconstruction under circular motion, Image and Vision Computing. 2007, 25: 1814-1823. |
|
Researcher
: Zhong J |
|
Project Title: |
Electric Power Ancillary Services: Market Design and Pricing Mechanisms |
|
Investigator(s): |
Zhong J |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
|
Start Date: |
01/2006 |
|
Abstract: |
|
The objectives of the project are the following: I. Formulate the cost functions for the two services. Examine the cost components of reactive power that provided by other reactive sources (such as, capacitors, SVC, etc.), and use the risk management concept to evaluate the cost of spinning reserve service. II. Based on the formulated cost functions, we will develop detailed mathematical models incorporating the system constraints such as bus voltages, power flows and transmission limits within a market settlement framework for each of these services. The outcome from these models will be the optimal procurement schemes for each ancillary service and the pricing strategy for the service. III. Study the issue of market power in ancillary service markets. Examine the feasibility of broadening the market to include a larger section of providers, which can help reduce market power in certain cases. |
|
Project Title: |
Impacts of Distributed Generation on Power Systems |
|
Investigator(s): |
Zhong J |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Seed Funding Programme for Basic Research |
|
Start Date: |
02/2006 |
|
Abstract: |
|
In the traditional vertically operated power systems, electric power is produced mostly by large power plants located far from load centers. High-voltage transmission networks are built to transmit electric power to consumption centers over long distances. Power system operators are responsible for power system security, reliability and power quality. Recent years, with the change of power system operating mode, dispersed generation sources are developed in many countries all over the world. These sources aim at producing electricity close to load centers and avoiding long distance power transmission. Distributed Generation (DG) sources can lower costs, improve reliability, reduce emission or expand customers’ energy options. In a distribution network, distributed generation sources are those small-scale generators located close to electricity consumers. Such generators are connected at substations, distribution feeders or customer load levels. The capacities of these small generators are usually less than 10MW. DG technologies can be classified mainly into two types: 1) distributed generators using traditional power generation technologies, such as, diesel turbine, combustion turbine, combined cycle turbine, low-head hydro, micro-turbine etc. 2) distributed generators utilize renewable energy, such as, wind power, solar energy, fuel cells, biomass, etc. The introduction of DG to a distribution system can impact the system significantly on many aspects, such as, flow of power on radial distribution lines, voltage profile, system protection, etc. The impacts of DG on distribution system depend on the characteristics of the distribution system and the DG sources in the system. The advantages of DG sources include voltage support, power quality improvement, reliability improvement and reducing T&D costs. Achieving these advantages requires a DG source satisfying various operating criteria as well as being reliable. For these potential improvements of power system performance, DG should be encouraged in power distribution systems. On the other hand, power system operations may be adversely impacted by DG if certain standards for control and installation are not maintained. In this project, we will study the impacts of DG sources on a distribution system. Base on a radial distribution system, we will analysis the operation conditions that can utilize distributed generation sources properly to insure the same levels of distribution system power quality, safety and reliability after introducing DG. This work will focus on the following aspects: • Reactive power support from DG sources in distribution system • The impacts of wind turbines on system stability and voltages in a distribution network • The allocation of costs caused by DG |
|
Project Title: |
Vector ordinal optimization theory based power transmission planning in restructured power systems |
|
Investigator(s): |
Zhong J, Wu FF |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
|
Start Date: |
01/2007 |
|
Abstract: |
|
Apply Ordinal Optimization theory to solve dynamic transmission planning problems. Dynamic transmission expansion planning, i.e., planning in a multi-year horizon, is a very complicated problem and difficult to solve. Its immense solution space makes the planning problem a simulation-based optimization problem. The heavy computation burden is a main challenge of traditional optimization techniques to solve dynamic transmission expansion problems. Ordinal Optimization (OO) theory provides a new tool to seek for good enough solutions with high possibility for a simulation-based optimization problem. In this project, Ordinal Optimization theory is proposed to solve dynamic planning optimization problem with single objective. Vector Ordinal Optimization (VOO), which is an extension of Ordinal Optimization, will be used to solve dynamic planning problem with multiple objectives. Applying OO and VOO to solve dynamic transmission planning problem will reduce the computation burden significantly. The accuracy can be guaranteed with a high alignment probability. Transmission planning considering both economic and technical factors. Minimizing investment and production costs is the main objective in the conventional transmission expansion planning. With the restructuring of power industry, various parties enter the electricity market, and Open Access to all participants is the basic requirement for the transmission network. Technical constrains on transmission expansion become obscured in such a restructured environment. In this project, we will study the technical constraints associated with the transmission planning problem and propose a planning model considering security and reliability criteria. The model will be used in the later stage of this project about applying game theory in transmission planning. Ordinal Optimization theory will be applied to solve the model. Game theory in transmission expansion planning under restructured environment. In restructured power systems, generation expansion and transmission expansion are planned and decided by separate entities. Transmission planners do not have full access to generation expansion information. To some extent, the incomplete information of generation expansion affects transmission planner’s decision. Game theory is a multi-person decision theory and is used for conflict analysis. In this project, we plan to study the effect of generation expansion on transmission planning in a game-theoretic framework. Then, we will apply game theory in transmission planning to simulate generation planner’s behavior and strategies, and obtain transmission expansion decisions that can accommodate various generation expansion schemes. |
|
List of Research Outputs |
|
Feng D., Gan D., Zhong J. and Ni Y., An Efficient Frontier Analysis for the GenCo Multi-trading Strategy: Part One – Model Analysis, Automation of Electric Power Systems. 2007, 31, No.13: 29-35. |
|
Feng D., Gan D., Zhong J. and Ni Y., An Efficient Frontier Analysis for the GenCo Multi-trading Strategy: Part Two – Algorithm Design, Automation of Electric Power Systems. 2007, 31, No.14: 31-37 & 42. |
|
Feng D., Zhong J. and Gan D., Reactive Market Power Analysis Using Must Run Indices, IEEE Transactions on Power Systems. 2008, 23: 755-765. |
|
Feng D., Gan D., Zhong J. and Ni Y., Supplier Asset Allocation in a Pool-based Electricity Market, IEEE Transactions on Power Systems. 2007, 1129-1138. |
|
Hammons T. .J., Voropai J., Zhong J., Mukhopadhyay S. and Kurihara I., Power Market Restructuring in Asia: Russia, China, India and Japan, International Journal of Power and Energy Systems. 2008, 28. |
|
Lin
Y. and Zhong J., A Novel
Voltage Control Strategy for the DC Micro Grid, The 8th International
Power Engineering Conference (IPEC). |
|
Lin
Y. and Zhong J.,
Development and Challenges of Communication Techniques in Power Systems, The
6th International Conference on Power Transmission and Distribution
Technology. |
|
Lin
Y. and Zhong J., Energy
and Reserve Dispatch in the Integrated Electricity Market with Sectional
Price Offers, IEEE/PES Transmission and Distribution Conference and
Exposition. |
|
Xie M., Zhong J. and Wu F.F., Multi-year Transmission Expansion Planning using Ordinal Optimization, IEEE Transactions on Power systems. 2007, 22: 1420-1428. |
|
Xie M. and Zhong J., Vector Ordinal Optimization based Multi-objective Transmission Planning , The 8th IASTED International Conference on Power and Energy Systems - EuroPES 2008. |
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Zhong J., Wang C. and Wang Y., Chinese growing pains, IEEE Power and Energy Magazine. 2007, 5, No.4: 33-40. |
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Zhong
J., Invited Lecture on Electricity |
|
Zhong
J., Invited Lecture on Physical Constrained
Electricity Markets as Complex Systems, ISI Fundation, |
|
Zhong J., Keynote Speech of Development and Challenges of Communication Techniques in Power Systems, the 6th International Conference on Power Transmission & Distribution Technology, Guangzhou, China. 2007. |
|
Researcher
: Zhou K |
|
List of Research Outputs |
|
Qiu D., Tan L.H., Zhou K. and Khong P.L., Diffusion Tensor Imaging of normal white matter maturation from late childhood to young adulthood: voxel-wise evaluation of mean diffusivity, fractional anisotropy, radial and axial diffusivities, and correlation with reading development, 16th Scientific Meeting & Exhibition of the International Society of Magnetic Resonance Imaging in Medicine (ISMRM), Toronto, Canada, 3-9 May 2008. |
|
Zhou K., Yeung L.K. and Li V.O.K., On performance modeling of TCP New-reno, Globecom 2007. IEEE. |
|
Researcher
: Zhou K |
|
List of Research Outputs |
|
Qiu D., Tan L.H., Zhou K. and Khong P.L., Diffusion Tensor Imaging of normal white matter maturation from late childhood to young adulthood: voxel-wise evaluation of mean diffusivity, fractional anisotropy, radial and axial diffusivities, and correlation with reading development, 16th Scientific Meeting & Exhibition of the International Society of Magnetic Resonance Imaging in Medicine (ISMRM), Toronto, Canada, 3-9 May 2008. |
|
Zhou K., Yeung L.K. and Li V.O.K., On performance modeling of TCP New-reno, Globecom 2007. IEEE. |
|
Researcher
: Zhou Y |
|
Project Title: |
Interference cancellation for high speed VSF-OFCDM systems |
|
Investigator(s): |
Zhou Y, Wang J |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Small Project Funding |
|
Start Date: |
11/2004 |
|
Abstract: |
|
To conduct a complete performance analysis of error probability; to study how performance of the OFCDM system is affected by parameters, such as spreading factor, the number of stages of MCI cancellation and MMSE weights and so on; prototype design and test. |
|
List of Research Outputs |
|
Pan
X., Ma S., Wang H., Zhou Y. and Ng T.S., Symbol Synchronization Based on
Cyclic Prefix for the Uplink of OFDMA Systems, IEEE TENCON2007. Tai |
|
Pan X., Ma S., Wang H., Zhou Y. and Ng T.S., Symbol Synchronization Based on Cyclic Prefix for the Uplink of OFDMA Systems, Proceedings, IEEE TENCON Taipei, Oct 30 - Nov 2, 2007. |
|
Zhou
Y., Wang J. and Ng T.S., Code Assignment for Downlink
Transmission of Broadband OFCDM Systems, PIMRC, Sept 3-7, 2007, Athen, |
|
Zhou
Y., Wang
J. and Ng T.S., Code assignment
for broadband OFCDM systems, IEEE PIMRC 2007. |
|
Zhou Y. and Ng T.S., Joint Iterative Detection for Multi-code MIMO-OFCDM Systems, Proceeding of IEEE ICCSC. IEEE, 2008, 1-5. |
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Zhou Y., Wang J., Ng T.S., Higuchi K. and Sawahashi M., OFCDM: a promising broadband wireless access technique, IEEE Communications Magazine. IEEE, 2008, 46: 39-49. |
|
Zhou
Y., Wang
J. and Ng T.S., Two Dimensionally
Spread OFCDM Systems for |
|
Researcher
: Zhu X |
|
List of Research Outputs |
|
Zhu
X., Chau
K.T., Cheng M. and Yu C., Design and control of a
flux-controllable stator-PM brushless motor drive, AIP Journal of Applied
Physics. 2008, 103(7): |
|
Zhu X., Chau K.T. and Cheng M., Design and control of a flux-controllable stator-PM brushless motor drive, Magnetism and Materials Conference. 2007, CD-ROM. |
|
Researcher
: Zou X |
|
List of Research Outputs |
|
Li C., Zou X., Lai P.T., Xu J. and Chan C.L., Effects of Ti Content and Wet N2 Anneal on Ge MOS Capacitors with HfTiO Gate Dielectric, Microelectronics Reliability. 2008, 48: 526-530. |
|
Li
C., Lai P.T., Xu J. and Zou X., Effects of annealing gas on
electrical properties and reliability of Ge MOS capacitors with HfTiON as
gate dielectric, Proceedings of IEEE International Conference on EDSSC.
|
|
Zou X., Xu J., Lai P.T. and Li C., Effects of Post deposited Annealing on Ge MOS Capacitors with Sub-nm EOT HfTiO Gate Dielectric, The 3rd IEEE International Conference of Nano/Micro Engineered and Molecular Systems (NEMS). Sanya, 2008, 362-365. |
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