DEPT OF ELECTRICAL & ELECTRONIC ENGG
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Researcher
: Chan CC |
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List of Research Outputs |
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Chan C.C., Chau K.T., Cheng M., Cui S., Masrur A., Mi C., Minami S. and Wong Y.S., Environmental Excellence in Transportation Award for Education, Training and Public Awareness 2006, International Society of Automotive Engineers (SAE). 2007. |
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Chan S.W., Chau K.T. and Chan C.C., A dedicated charger for hybrid energy systems with ultracapacitors and lithium polymer batteries, International Electric Vehicle Symposium. 2006, CD-ROM. |
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Chan S.W., Chau K.T. and Chan C.C., A new switched-capacitor inverter for electric vehicles, Journal of Asian Electric Vehicles. 2006, 4(2): 905-909. |
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Chau K.T. and Chan C.C., Emerging energy-efficient technologies for hybrid electric vehicles, Proceedings of IEEE. 2007, 95(4): 821-835. |
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Wong Y.S., Chau K.T., Chan C.C. and Ching T.W., Battery evaluation and sizing for plug-in hybrid electric vehicles, International Electric Vehicle Symposium. 2006, CD-ROM. |
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Wong
Y.S., Chau K.T. and Chan C.C., |
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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.G., a Comparison Study On Blood And Tissue Nitric Oxide Concentration During Renal Ischemia-reperfusion Injury With Electron Paramagnetic Resonance Spectroscopy, Applied Magnetic Resonance. 2007. |
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Ting K.H., Fung P.C.W., Chang C. and Chan F.H.Y., Automatic correction of artifact from single-trial event related potentials by blind source separation using second order statistics only, Medical Engineering & Physics. 2006, 28: 780-794. |
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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 object-based representation 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: |
09/2004 |
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Completion Date: |
08/2006 |
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Abstract: |
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To study and develop methods for performing depth segmentation; to develop a new algorithm for coding the plenoptic video at the object level to provide object-based functionalities. |
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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., Tsui K.M. and Zhao S., A Methodology for Automatic Hardware Synthesis of Multiplier-less Digital Filters with Prescribed Output Accuracy, Proc. Asia Pacific Conference on Circuits and Systems (APCCAS'06). 2006, 61-64. |
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Chan S.C., Tsui K.M. and Kwan H.K., A New Method for Designing Constrained Causal Stable IIR Variable Digital Filters, Proc. Asia Pacific Conference on Circuits and Systems (APCCAS'06). 2006, 65-68. |
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Chan S.C. and Chen H., Adaptive beamforming and DOA estimation using uniform concentric spherical arrays with frequency invariant characteristics, Journal of VLSI Signal Processing System. 2007, vol. 46, no. 1: pp. 15-34. |
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Chan S.C. and Xie X., Biorthogonal recombination nonuniform cosine-modulated filter banks and their multiplier-less realizations, Journal of VLSI Signal Processing Systems. 2006, vol. 44, issue 12: pp. 5-23. |
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Chan S.C., Tsui K.M. and Tse K.W., Design of constrained causal stable IIR filters using a new second order cone programming based model reduction, IEEE Transactions Circuits and Systems II. 2007, vol. 54, no. 2: pp. 107-111. |
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Chan S.C., Tsui K.M., Yeung K.S. and Yuk T.T.I., Design, implementation and complexity optimization of a new digital IF for software radio receivers, IEEE Transactions Circuits and Systems I. 2007, vol. 54, no. 2: pp. 351-366. |
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Chan S.C. and Tsui K.M., Error analysis and implementation of the multiplier-less FFT-like transformation (ML-FFT) and related sinusoidal transformations, Journal of VLSI Signal Processing Systems. 2006, vol. 44, issue 12: pp. 97-115. |
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Chan S.C., Zhang Z. and Tsui K.M., Minimum Variance Spectral Estimation-Based Time Frequency Analysis for Nonstationary Time-Series, Proc. IEEE Int'l Symposium on Ciruits and Systems (ISCAS'2007). 2007, 1815-1818. |
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Chan S.C. and Tsui K.M., The multi-plet two-channel perfect reconstruction filter banks, IEEE Transactions Circuits and Systems I. IEEE, 2006, vol. 53, no. 12: pp.2804-2817. |
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Chan
S.C. and Tsui
K.M., Wordlength optimization of linear time invariant systems with
multiple outputs using geometric programming, IEEE Transactions Circuits
and |
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Chen H., Chan S.C. and Ho K.L., New Recursive Adaptive Beamforming Algorithms for Uniform Concentric Spherical Arrays with Frequency Invariant Characteristics, Proc. IEEE Int'l Symposium on Ciruits and Systems (ISCAS'2007). 2007, 2403-2406. |
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Cheng H. and Chan S.C., Blind linear MMSE receivers for MC-CDMA systems, IEEE Transactions Circuits and Systems I. 2007, vol. 54, no. 2: pp. 367-376. |
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Law T.M., Chan S.C. and Zhang Z., A Turbo Receiver for Wireless Mc-Cdma Communications Using Map-Em Demodulator with Ldpc Codes under Narrowband Interference, Proc. IEEE 12th DSP Workshop. 2006, 94-98. |
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Shum H.Y., Chan S.C. and Kong S.B., Image-Based Rendering, Springer, 2006, (408 pages). |
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Tsui K.M., Zhang Z., Chan S.C., Hu Y. and Luk K.D.K., On the Time-frequency Analysis of Trunk Muscles During Sudden Release of Load, Proc. IEEE Int'l Symposium on Ciruits and Systems (ISCAS'2007). 2007, 1309-1312. |
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Zhang Z. and Chan S.C., A New Minimum Variance Spectral Estimation Method for Analyzing Click-Evoked Otoacoustic Emissions, Proc. IEEE Int'l Symposium on Ciruits and Systems (ISCAS'2007). 2007, 833-836. |
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Zhao S. and Chan S.C., Robust Transmit/Receive Beamformer Design and Power Control with Channel Uncertainty in MIMO MC-CDMA System, Proc. IEEE 12th DSP Workshop. 2006, 409-413. |
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Researcher
: Chan SKJ |
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List of Research Outputs |
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Chan S.K.J., Li V.O.K. and Wong Lui K.S., Performance Comparison of Scheduling Algorithms for Peer-to-Peer Collaborative File Distribution, IEEE Journal on Selected Areas in Communications (JSAC). 2007, 25: 146 - 154. |
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Researcher
: Chan SW |
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List of Research Outputs |
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Chan S.W., Chau K.T. and Chan C.C., A dedicated charger for hybrid energy systems with ultracapacitors and lithium polymer batteries, International Electric Vehicle Symposium. 2006, CD-ROM. |
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Chan S.W., Chau K.T. and Chan C.C., A new switched-capacitor inverter for electric vehicles, Journal of Asian Electric Vehicles. 2006, 4(2): 905-909. |
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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. and Ng K.P., Extending the depth of field in a compound-eye imaging system with super-resolution reconstruction, International Conference on Pattern Recognition. 2006, 3: 623-626. |
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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., Network component analysis, Bioinformatics Workshop at ICONIP’2006, Hong Kong. 2006. |
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Chang C., Xu W., Hung Y.S. and Fung P.C.W., Nonlinear dynamic characterization of intra-atrial ECG signals, Biomedizinische Technik. 2006, 51: A7. |
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Geng
B., Leung Y.Y., Chang C. and Hung Y.S., Effect of preprocessing on
the microarray data analysis, Conference on Biomedical Engineering (BME
2006) . |
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Leung
Y.Y., Chang C., Hung Y.S. and Fung P.C.W., Gene selection for brain
cancer classification, IEEE International Conference of the Engineering in
Medicine and Biology Society (EMBC 2006). |
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Leung
Y.Y., Chang C. and Hung Y.S., Microarray data analysis for
acute leukemia classification – is gene selection the only factor?, 4th |
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Leung Y.Y., Chang C. and Hung Y.S., Multi-class combination of microarray data: from data preprocessing to functional aspects, Asia-Pacific Bioinformatics Conference (APBC 2007). 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.G., a Comparison Study On Blood And Tissue Nitric Oxide Concentration During Renal Ischemia-reperfusion Injury With Electron Paramagnetic Resonance Spectroscopy, Applied Magnetic Resonance. 2007. |
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Ting K.H., Fung P.C.W., Chang C. and Chan F.H.Y., Automatic correction of artifact from single-trial event related potentials by blind source separation using second order statistics only, Medical Engineering & Physics. 2006, 28: 780-794. |
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Xu X., Ye Z.F., Zhang Y.F. and Chang C., A deflation approach to direction of arrival estimation for symmetric uniform linear array, IEEE Antenna & Wireless Propagation Letters. 2006, 5: 486-489. |
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Researcher
: Chang N |
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List of Research Outputs |
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Shi L., Zhou H., Tam P.T.C., Chang N., Du Z., Ni Y. and Wu F.F., Developing a Power System Dynamic Security Assessment System, Part II: structure and function design and technology used, International Conference on Power System Technology 2006. |
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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 C.C., Chau K.T., Cheng M., Cui S., Masrur A., Mi C., Minami S. and Wong Y.S., Environmental Excellence in Transportation Award for Education, Training and Public Awareness 2006, International Society of Automotive Engineers (SAE). 2007. |
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Chan S.W., Chau K.T. and Chan C.C., A dedicated charger for hybrid energy systems with ultracapacitors and lithium polymer batteries, International Electric Vehicle Symposium. 2006, CD-ROM. |
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Chan S.W., Chau K.T. and Chan C.C., A new switched-capacitor inverter for electric vehicles, Journal of Asian Electric Vehicles. 2006, 4(2): 905-909. |
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Chau K.T., Zhang D., Jian L., Jiang J. and Zhang Y., A compact wind-power permanent-magnet generator using magnetic gearing, Computation of Electromagnetic Fields Conference. 2007, CD-ROM. |
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Chau K.T., Li Y., Jiang J. and Liu C., Design and analysis of a stator-doubly-fed doubly-salient permanent-magnet machine for automotive engines, IEEE Transactions on Magnetics. 2006, 42(10): 3470-3472. |
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Chau K.T., Li Y., Jiang J. and Niu S., Design and control of a PM brushless hybrid generator for wind power application, IEEE Transactions on Magnetics. 2006, 42(10): 3497-3499. |
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Chau K.T., Zhang D., Jiang J., Liu C. and Zhang Y.J., Design of a magnetic-geared outer-rotor permanent-magnet brushless motor for electric vehicles, IEEE Joint Magnetism & Magnetic Materials - International Magnetics Conference. 2007, CD-ROM. |
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Chau K.T., Zhang D., Jiang J., Liu C. and Zhang Y.J., Design of a magnetic-geared outer-rotor permanent-magnet brushless motor for electric vehicles, IEEE Transactions on Magnetics. 2007, 43(6): 2504-2506. |
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Chau K.T. and Chan C.C., Emerging energy-efficient technologies for hybrid electric vehicles, Proceedings of IEEE. 2007, 95(4): 821-835. |
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Chung S.W. and Chau K.T., Active control of self-locking torque of traveling-wave ultrasonic motor using standing-wave operation, Electric Power Components and Systems. 2006, 34(7): 799-816. |
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Chung S.W. and Chau K.T., Speed control of traveling-wave ultrasonic motors using a practical modeling approach, Electric Power Components and Systems. 2007, 35(4): 411-428. |
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Fan Y., Chau K.T. and Niu S., Development of a new brushless doubly fed doubly salient machine for wind power generation, IEEE Transactions on Magnetics. 2006, 42(10): 3455-3457. |
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Liu C., Chau K.T. and Jiang J., Design of a new outer-rotor permanent-magnet hybrid machine for wind power generation, Computation of Electromagnetic Fields Conference. 2007, CD-ROM. |
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Niu S., Chau K.T. and Jiang J., Design and control of a new double-stator cup-rotor permanent-magnet machine for wind power generation, IEEE Joint Magnetism & Magnetic Materials - International Magnetics Conference. 2007, CD-ROM. |
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Niu S., Chau K.T., Jiang J. and Liu C., Design and control of a new double-stator cup-rotor permanent-magnet machine for wind power generation, IEEE Transactions on Magnetics. 2007, 43(6): 2501-2503. |
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Niu
S., Chau K.T., Zhang D. and Jiang J., Eddy-current loss analysis of
a double-stator permanent-magnet brushless DC machine, Computation of
Electromagnetic Fields Conference. |
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Wang Z., Chau K.T. and Liu C., Improvement of electromagnetic compatibility of induction motor drives using optimized chaotic PWM, IEEE Joint Magnetism & Magnetic Materials - International Magnetics Conference. 2007, CD-ROM. |
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Wang Z., Chau K.T. and Liu C., Improvement of electromagnetic compatibility of motor drives using chaotic PWM, IEEE Transactions on Magnetics. 2007, 43(6): 2612-2614. |
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Wang Z. and Chau K.T., Stabilization of chaotic vibration in automobile wiper systems, Asia International Symposium on Mechatronics. 2006, CD-ROM. |
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Wong Y.S., Chau K.T., Chan C.C. and Ching T.W., Battery evaluation and sizing for plug-in hybrid electric vehicles, International Electric Vehicle Symposium. 2006, CD-ROM. |
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Wong
Y.S., Chau K.T. and Chan C.C., |
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Ye S., Chau K.T. and Niu S., Chaoization of a single-phase induction motor for washing machines, IEEE Industry Applications Society Annual Meeting. 2006, CD-ROM. |
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Zhang D., Chau K.T., Niu S. and Jiang J., Design and analysis of a double-stator cup-rotor PM integrated-starter-generator, IEEE Industry Applications Society Annual Meeting. 2006, CD-ROM. |
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Zhang D., Niu S., Chau K.T., Jiang J.Z. and Gong Y., Design and analysis of a double-stator cup-rotor directly driven permanent magnet wind power generator, CES/IEEE Power Electronics and Motion Control Conference. 2006, CD-ROM. |
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Zhang Y., Chau K.T., Jiang J., Zhang D. and Liu C., A finite element – analytical method for electromagnetic field analysis of electric machines with free rotation, IEEE Transactions on Magnetics. 2006, 42(10): 3392-3394. |
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Zhu X., Cheng M., Zhao W., Liu C. and Chau K.T., A transient co-simulation approach to performance analysis of hybrid excited doubly salient machine considering indirect field-circuit coupling, IEEE Transactions on Magnetics. 2007, 43(6): 2558-2560. |
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Researcher
: Chek CH |
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List of Research Outputs |
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Chek C.H. and Kwok Y.K., Design and Evaluation of Practical Coexistence Management Schemes for Bluetooth and IEEE 802.11b Systems, Computer Networks. 2007, 51(8): 2086-2103. |
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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., Adaptive beamforming and DOA estimation using uniform concentric spherical arrays with frequency invariant characteristics, Journal of VLSI Signal Processing System. 2007, vol. 46, no. 1: pp. 15-34. |
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Chen H., Chan S.C. and Ho K.L., New Recursive Adaptive Beamforming Algorithms for Uniform Concentric Spherical Arrays with Frequency Invariant Characteristics, Proc. IEEE Int'l Symposium on Ciruits and Systems (ISCAS'2007). 2007, 2403-2406. |
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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., Timing robust joint carrier frequency and channel estimation for OFDM systems, Proceedings IEEE Wireless Communications and Networking Conference (WCNC 2007), Hong Kong. 2007. |
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Researcher
: Chen L |
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List of Research Outputs |
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Chen
L., Zhong
J. and Gan D., Optimal Automatic Generation Control Dispatching and its
Control Performance Analysis for the Distribution Systems with DGs, IEEE/PES
General Meeting, |
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Chen L., Zhong J. and Gan D., The Optimal Reactive Power Planning of Radial Distribution Systems with Distributed Generation, Automation of Electric Power Systems (in Chinese). 2006, 30, No.14: 20-24. |
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Researcher
: Chen Q |
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List of Research Outputs |
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Chen Q. and Wong N., A stochastic integral equation method for resistance extraction of conductors with random rough surfaces, Proc. Intl. Symp. on Intelligent Signal Processing and Communication Systems (ISPACS). 2006, 411-414. |
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Chen Q. and Wong N., Investigation of random rough surface effects in interconnect resistance extraction utilizing effective conductivity, Proc. IEEE Region 10 Conf. (TENCON). 2006. |
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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., He S.L. and Chui P.C.,
Comprehensive Analysis and Optimal Design of Top-Emitting Organic Light
Emitting Devices, journal of applied physics. 2007, 101: 11 |
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Chen X., Choy W.C.H. and He S.L., Efficient and Rigorous Modeling of Light Emission in Planar Multilayer Organic Light-Emitting Diodes, IEEE/OSA Journal Display Technology. 2007, 3: 110-117. |
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Chen X., Choy W.C.H., He S.L. and Chui P.C., Highly Efficient Fluorescence of a Fluorescing Nanomaterial with a Silver Shell, OSA Optics Express. 2007, 15: 7083-7094. |
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Researcher
: Cheng H |
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List of Research Outputs |
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Cheng
H. and Chan
S.C., Blind linear MMSE receivers for MC-CDMA systems, IEEE
Transactions Circuits and Systems |
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List of Research Outputs |
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Cheng K.Y., Wong Lui K.S. and Tam V.W.L., Localization in Sensor Networks with Limited Number of Anchors and Clustered Placement, IEEE Wireless Communications & Networking Conference (WCNC). 2007. |
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Tam V.W.L., Cheng K.Y. and Wong Lui K.S., A Descend-Based Evolutionary Approach to Enhance Position Estimation in Wireless Sensor Networks, Proceedings of the IEEE 18th International Conference on Tools with Artificial Intelligence (ICTAI’06). the IEEE Computer Society, 2006. |
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Tam V.W.L., Cheng K.Y. and Wong Lui K.S., Using Micro-Genetic Algorithms to Improve Localization in Wireless Sensor Networks , Journal of Communications. The Academy Publisher, 2006, 1: 1 - 10. |
|
Researcher
: Chesi G |
|
List of Research Outputs |
|
Chesi G., Associate Editor of Automatica (2007-present), Automatica. Elsevier, 2007. |
|
Chesi G., Chair for Invited Sessions, Asian Control Conference (ASCC) 2009. 2006. |
|
Chesi G., Estimating the domain of attraction via union of continuous families of Lyapunov estimates, Systems and Control Letters. 2007, 56: 326-333. |
|
Chesi G., Further Roles of the SMR in Dynamical Systems, Department of Systems and Information, University of Firenze, Firenze, Italy. 2006. |
|
Chesi G., Guest Editor of the Special Issue on Positive Polynomials in Control of IEEE Transactions on Automatic Control (to appear), IEEE Transactions on Automatic Control. IEEE, 2006. |
|
Chesi G. and Hung Y.S., On the convexity of sublevel sets of polynomial and homogeneous polynomial Lyapunov functions, 45th IEEE Conf. on Decision and Control. 2006. |
|
Chesi G., On the gap between positive polynomials and SOS of polynomials, IEEE Transactions on Automatic Control. 2007, 52: 1066-1072. |
|
Chesi G., Program Committee member, International Conference on Informatics in Control, Automation and Robotics (ICINCO). 2007. |
|
Chesi G., Garulli A., Tesi A. and Vicino A., Robust stability of time-varying polytopic systems via parameter-dependent homogeneous Lyapunov functions, Automatica. 2007, 43: 309-316. |
|
Chesi
G., Solving Polynomial Systems via LMI, Workshop
on Optimization and Control, Institute for Mathematics and its Applications
(IMA), |
|
Chesi G. and Hung Y.S., Solving polynomial systems: an LMI-based approach, 45th IEEE Conf. on Decision and Control. 2006. |
|
Chesi G., Prattichizzo D. and Vicino A., Straight line path-planning in visual servoing, Journal of Dynamic Systems, Measurement and Control. 2007, 129: 541-543. |
|
Chesi G. and Hung Y.S., Visual servoing: a global path-planning approach, IEEE Int. Conf. on Robotics and Automation. 2007. |
|
Researcher
: Cheung CM |
|
List of Research Outputs |
|
Cheung C.M., Lei C.U. and Wong N., Design of 2D linear-phase IIR filters via Schur decomposition and discrete-time vector fitting, Proc. IEEE Conf. Industrial Electronics and Applications (ICIEA). 2007, 2403-2406. |
|
Cheung C.M., Lei C.U. and Wong N., Novel 2D linear-phase IIR filter design and application in noise removal, Proc. IAENG International Conference on Electrical Engineering (ICEE’07). 2007, 1793-1796. |
|
Researcher
: Cheung KYH |
|
List of Research Outputs |
|
Cheung K.Y.H., Fung W.L., Kwok
C.H. and Wong K.K.Y., All-Optical
Packet Switching by Pulsed-Pump Wavelength Exchange in a Highly Nonlinear Dispersion-Shifted
Fiber, Opt. Fiber Comm. Conf.. |
|
Cheung K.Y.H., Chui P.C. and Wong K.K.Y., Counter-pumped
Raman-mediated fiber optical parametric amplifiers, Optoelectronics and
Comm. Conf.. |
|
Cheung K.Y.H., Fung W.L., Lai M.F., Chui P.C. and Wong K.K.Y., Optical Pulse Generation
Using Two-Stage Compression Based on Optical Parametric Amplifier, Conf.
on Lasers & Electro-Optics. |
|
Fung
W.L., Cheung K.Y.H.
and Wong K.K.Y., Wavelength Exchange
with Enhanced Extinction Ratio in Highly Nonlinear Dispersion-Shifted Fiber, Conf.
on Lasers & Electro-Optics. |
|
Fung W.L., Cheung K.Y.H., Kuo P.P., Kwok C.H. and Wong K.K.Y., Wavelength exchange using two pumps in anomalous regime, European Conf. on Optical Communications. 2006. |
|
Kwok C.H., Cheung K.Y.H., Fung W.L., Kuo P.P., Wong K.K.Y. and Lin C., First
Demonstration of Pulsed Pumping Wavelength Exchange, Optoelectronics and
Comm. Conf.. |
|
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 |
|
Lee C.Y., Cheung P.Y.S., Lam K.S.L. and Li V.O.K., A noninvasive method to estimate variation of blood glucose level using metabolic measurements, US Provisional Patent, 60881265, . 2007. |
|
Lee
C.Y., Cheung P.Y.S. and Lam
K.S.L., A novel approach to estimate variations of blood glucose using
noninvasive metabolic measurements, The fifth IASTED international
conference on biomedical engineering, |
|
Sum K.W. and Cheung P.Y.S., A Fast Parametric Snake Model with Enhanced Concave Object Extraction Capability, Proceedings of the 2006 IEEE International Symposium on Signal Processing and Information Technology. IEEE, 2006, 454-457. |
|
Sum K.W. and Cheung P.Y.S., A Novel Active Contour Model Using Local and Global Statistics for Vessel Extraction, Proceedings of the 2006 IEEE International Conference on Engineering in Medicine and Biology. IEEE, 2006, 3126-3129. |
|
Sum K.W. and Cheung P.Y.S., Boundary vector field for parametric active contours, Pattern Recognition. Elservier, 2007, 40: 1635-1645. |
|
Researcher
: Cheung SC |
|
List of Research Outputs |
|
Cheung S.C., Chow M.K.A., Hui S.K., Yang J., Tse H.F. and Wu E.X., Cell number quantification of USPIO-labeled stem cells by MRI: an in vitro study., 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBS). 2006, 476. |
|
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 |
|
Tam
V.W.L., Cheung S.W. and Wong Lui K.S., TD-SCDMA Application
Award, |
|
Researcher
: Cheung WFJ |
|
List of Research Outputs |
|
Cheung W.F.J. and Hung Y.S., Robust
control of a high precision planar parallel manipulator, 2nd Asian
International Symposium on Mechatronics, 12-15 Dec. 2006. |
|
Zhong
H., Cheung W.F.J. and
Hung Y.S., Reconstruction from Plane
Mirror Reflection, International Conference on Pattern Recognition
ICPR2006, Vol 1 Track 1: Computer Vision and Image Analysis, Session
Mon-P-I-3, |
|
Researcher
: Cheung WT |
|
List of Research Outputs |
|
Cheung W.T. and Wong N., Optimized RF CMOS low noise amplifier design via geometric programming, Proc. Intl. Symp. on Intelligent Signal Processing and Communication Systems (ISPACS). 2006, 423-426. |
|
Cheung W.T. and Wong N., Power optimization in a repeater-inserted interconnect via geometric programming, Proc. International Symposium on Low Power Electronics and Design (ISLPED). 2006, 226-231. |
|
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
: Chim TW |
|
List of Research Outputs |
|
Chim T.W., Energy-efficient Sensor Scheduling to Accommodate Real-time Surveillance Orders, IEEE TENCON'06. 2006. |
|
Researcher
: Chiu HS |
|
List of Research Outputs |
|
Chiu
H.S., Yeung
L.K. and Wong Lui K.S., J-CAR: an
Efficient Channel Assignment and Routing Protocol for Multi-channel
Multi-interface |
|
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., Yang B.L., Lai P.T., Chen P., Zhang X.H., Teng J.H. and Chua S.J., GaN-MQW Microdisks Pivoted on Si Substrate, Physica Status Solidi (a). 2007, 204: 272-276. |
|
Choi
H.W., Hui
K.N., Lai P.T., Chen P., Zhang X.
.H., Tripathy S. and Chua S. .J., Lasing in Free-standing GaN Microdisks
Pivoted on Si, Applied Physics Letters. 2006, 89: 21 |
|
Choi H.W., Hui K.N., Lai P.T., Chen P., Zhang X.H., Teng J.H., Tripathy S. and Chua S.J., Lasing in GaN Microdisks Pivoted on Si, Applied Physics Letters. 2006, 89: 211101. |
|
Choi
H.W., Micro Light Emitting Diodes, |
|
Choi
H.W., Hui
K.N., Lai P.T., Chen P., Zhang
X.H., Teng J.H., Tripathy S. and Chua S.J., Stimulated Emission from
Free-standing GaN/Si Microdisk Structures, International Workshop on
Nitride Semiconductors 2006 . |
|
Choi H.W., Hui K.N., Lai P.T., Chen P., Zhang X.H., Teng J.H., Tripathy S. and Chua S.J., Stimulated Emission from Free-standing GaN/Si Microdisk Structures, Physica Status Solidi (c). 2007, 4: 2358. |
|
Choi H.W., Trends in Applied Sciences Research. 2006. |
|
List of Research Outputs |
|
Choi K.S., Lam E.Y.M. and Wong K.K.Y., Automatic source camera identification using the intrinsic lens radial distortion, Optics Express. 2006, 14: 11551-11565. |
|
Choi K.S., Lam E.Y.M. and Wong K.K.Y., Feature selection in source
camera identification, IEEE Int. Conf. on Syst., Man. and Cybernetics.
|
|
Choi K.S., Lam E.Y.M. and Wong K.K.Y., Source camera identification by JPEG compression statistics for image forensics, IEEE Tencon. 2006. |
|
List of Research Outputs |
|
Chow K.Y., Wong Lui K.S. and Lam E.Y.M., Achieving 360 degree angle coverage with minimum transmission cost in visual sensor networks, IEEE Wireless Communications and Networking Conference. 2007. |
|
Chow K.Y., Wong Lui K.S. and Lam E.Y.M., Efficient on-demand image transmission in visual sensor networks, EURASIP Journal on Advances in Signal Processing. 2007, 2007: 95076. |
|
Chow K.Y., Wong Lui K.S. and Lam E.Y.M., Efficient selective image transmission in visual sensor networks, IEEE 65th Vehicular Technology Conference. 2007. |
|
Chow K.Y., Wong Lui K.S. and Lam E.Y.M., Maximizing angle coverage in visual sensor networks, IEEE International Conference on Communications. 2007. |
|
Researcher
: Chow MKA |
|
List of Research Outputs |
|
Cheung S.C., Chow M.K.A., Hui S.K., Yang J., Tse H.F. and Wu E.X., Cell number quantification of USPIO-labeled stem cells by MRI: an in vitro study., 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBS). 2006, 476. |
|
Researcher
: Choy WCH |
|
Project Title: |
Nano-structural semiconductor for device applications |
|
Investigator(s): |
Choy WCH |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Seed Funding Programme for Basic Research |
|
Start Date: |
04/2005 |
|
Completion Date: |
09/2006 |
|
Abstract: |
|
It is a well-known fact that dimensionality plays an important role in determining the optical, electrical and mechanical properties of the materials. Recently, one dimensional (1-D) semiconductor nanostructures with the dimension in the range of 1nm to 100nm have gained significant research interests particularly for nanowires and nanotubes. These 1-D nanostructures exhibit novel electronic and optical properties owing to their unique structural one-dimensionality and possible quantum confinement effects in two dimensions. With a broad selection of compositions and band structures, the one-dimensional semiconductor nanostructures are considered to be the critical components in a wide range of potential nanoscale device applications. In this project, our efforts are to synthesize novel one dimensional nanostructures and we will pay particular attention to II-V and III-V semiconductor materials such as ZnSe and GaN, respectively, due to their outstanding capability in optoelectronic device applications. In order to study the growing mechanism, the morphology and composition of semiconductor nanostructures will be investigated. Meanwhile, the optical and electrical properties of the 1-D nanostructures will be studied. With the understanding of the growing mechanism, we will focus on controlling the size and phase of the 1-D semiconductor nanostructures particularly for those with interesting optical and electrical properties. Actually, we have synthesize some interesting 1-D ZnSe and GaN semiconductor nanostructures as shown in Figure 1 and 2 (in the attachment section of the proposal), respectively, more work will be carried out to optimize the growing processes and investigate the properties of the nanostructures. |
|
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., He S.L.
and Chui P.C., Comprehensive Analysis
and Optimal Design of Top-Emitting Organic Light Emitting Devices, journal
of applied physics. 2007, 101: 11 |
|
Chen X., Choy W.C.H. and He S.L., Efficient and Rigorous Modeling of Light Emission in Planar Multilayer Organic Light-Emitting Diodes, IEEE/OSA Journal Display Technology. 2007, 3: 110-117. |
|
Chen X., Choy W.C.H., He S.L. and Chui P.C., Highly Efficient Fluorescence of a Fluorescing Nanomaterial with a Silver Shell, OSA Optics Express. 2007, 15: 7083-7094. |
|
Choy W.C.H., Tam V.W.L., Yu B.T.Y. and Leung L.M.L., Absolute Optical Properties of Organic Materials, Proceedings of the Sixth International Conference on Electroluminescence of Molecular Materials and Related Phenomena (ICEL-6). 2006. |
|
Choy W.C.H., Tam V.W.L., Yu Z.Y. and Leung M.L., Absolute Optical Properties of Organic Materials, The 6th International Conference on Electroluminescence of Molecular Materials and Relative Phenomena. 2006. |
|
Choy W.C.H., Guo C. and Pang K.H., CVD grown Zinc based Nanostructures on Zinc Selenide microscale grains, Journal of Solid State Phen. 2007, 121-123: 347-350. |
|
Choy
W.C.H., Colour Tunable Light Emitting |
|
Choy
W.C.H. and Tao D., Rare-Earth Complexes And
Its Applications In Organic Light Emitting Diodes, |
|
Choy W.C.H., Jin L., Leung Y.P., Ong H.C. and Wang J.B., Synthesis and Analysis of abnormal Wurtzite ZnSe nanorings, International Conf. on Materials for Adv. Technologies. 2007. |
|
Choy W.C.H. and Liang C., Voltage-controlled Color-tunable organic light-emitting diodes by using europium organometallic complex, International Conf. on Materials for Adv. Technologies 2007. |
|
Choy W.C.H., Wavelength-tunable Organic Devices and Nanostructures, Center for Advanced Research in Photonics, The Chinese University of Hong Kong and the IEEE` LEOS Hong Kong Chapter. 2006. |
|
Choy W.C.H., Who's who in Science and Engineering, 2007. |
|
Choy W.C.H., Leung Y.P., Jin L. and Wang J.B., Wide Wavelength tuning of ZnSe Nanostructures by Temperature, NSTI Nanotechnology Conference. 2007. |
|
Jin L., Leung Y.P., Choy W.C.H. and Yuk T.T.I., ZnSe Nanorings and their Cathodoluminescence, The Materials Research Society (MRS) 2006 Fall Meeting. 2006. |
|
Liang
C. and Choy W.C.H.,
Color-tunable organic light-emitting diodes by using europium organometallic
complex, Applied Physics Letters. 2006, 89: 25 |
|
List of Research Outputs |
|
Chu C.K. and Wong N., Efficient positive real balanced truncation of SISO systems via cross-Riccati equations, Proc. Intl. Symp. on Intelligent Signal Processing and Communication Systems (ISPACS). 2006, 403-406. |
|
Chu C.K. and Wong N., Model order reduction of frequency-dependent interconnect models via linear fractional transformation techniques, Proc. Intl. Symp. on Intelligent Signal Processing and Communication Systems (ISPACS). 2006, 407-410. |
|
Wong N. and Chu C.K., A Fast Passivity Test for Descriptor Systems Via Structure-Preserving Transformations of Skew-Hamiltonian/Hamiltonian Matrix Pencils, Proc. Design Automation Conference (DAC) 2006. 261-266. |
|
List of Research Outputs |
|
Chu M.H. and Pang G.K.H., Solder
paste inspection by special LED lighting for SMT manufacturing of printed
circuit boards, Intellegent Manufacturing Systems, IMS' 07. |
|
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 |
|
Chen
X., Choy W.C.H., He S.L. and Chui P.C., Comprehensive Analysis
and Optimal Design of Top-Emitting Organic Light Emitting Devices, journal
of applied physics. 2007, 101: 11 |
|
Chen X., Choy W.C.H., He S.L. and Chui P.C., Highly Efficient Fluorescence of a Fluorescing Nanomaterial with a Silver Shell, OSA Optics Express. 2007, 15: 7083-7094. |
|
Cheung
K.Y.H., Chui P.C. and Wong K.K.Y., Counter-pumped
Raman-mediated fiber optical parametric amplifiers, Optoelectronics and
Comm. Conf.. |
|
Cheung
K.Y.H., Fung W.L., Lai M.F., Chui P.C. and Wong K.K.Y., Optical Pulse Generation
Using Two-Stage Compression Based on Optical Parametric Amplifier, Conf.
on Lasers & Electro-Optics. |
|
Kuo
P.P., Chui P.C. and Wong K.K.Y., Suppression of WDM Signal
Crosstalk in Fiber Optical Parametric Amplifier by Using RZ-DPSK Modulation
Format, Opt. Fiber Comm. Conf.. |
|
Kuo
P.P., Chui P.C. and Wong K.K.Y., Tunable Repetition-rate
Ultrawideband Monocycle Pulse Generation by using Optical Parametric
Amplifier, Conf. on Lasers & Electro-Optics. |
|
Researcher
: Chung SW |
|
List of Research Outputs |
|
Chung S.W. and Chau K.T., Active control of self-locking torque of traveling-wave ultrasonic motor using standing-wave operation, Electric Power Components and Systems. 2006, 34(7): 799-816. |
|
Chung S.W. and Chau K.T., Speed control of traveling-wave ultrasonic motors using a practical modeling approach, Electric Power Components and Systems. 2007, 35(4): 411-428. |
|
Researcher
: Diao Z |
|
List of Research Outputs |
|
Diao Z., Shen D. and Li V.O.K., CPLD-PGPS Scheduler in Wireless OFDM Systems, IEEE Transactions on Wireless Communications. 2006, 5: 2923-2931. |
|
Sun
F., Li V.O.K., Diao Z. and Xu Z.Y., A new
cross-layer designed multipolling MAC protocol over WLANs, Proc. IEEE
Wireless Communications and Networking Conference. |
|
Sun
F., Li V.O.K., Diao Z. and Xu Z.Y.,
Contention-based medium access control with physical layer assisted link
differentiation, Proc. IEEE ICC. |
|
Sun
F., Li V.O.K., Diao Z. and Xu Z.Y., Medium
access control with physical layer assisted loss differentiation, Proc.
IEEE Globecom. |
|
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: |
Dye- and polymer sensitized solar cells based on novel nanostructured semiconductor layers |
|
Investigator(s): |
Djurisic A |
|
Department: |
Physics |
|
Source(s) of Funding: |
Seed Funding Programme for Basic Research |
|
Start Date: |
01/2006 |
|
Completion Date: |
12/2006 |
|
Abstract: |
|
In order to maintain a sustainable environment, there is a high demand to produce inexpensive renewable energy sources. Therefore, the development of low production cost solar cells is of particular interest. Organic materials have an important advantage of enabling fabrication of devices on large are and flexible substrates, using inexpensive solution processing techniques. Among different types of organic solar cells, dye-sensitized cells typically have the highest power conversion efficiency, which is ~10%. A dye-sensitized solar cell typically consists of a porous TiO2 layer infiltrated with dye sensitizer molecules. To study the factors limiting the efficiency of these cells, as well as to try to improve the charge transport and reduce recombination of generated carriers, different nanostructured semiconductors (ZnO, SnO2) in addition to TiO2 are intensively investigated. In addition, polymer sensitized solar cells are being studied in order to achieve good performance solid state devices without liquid electrolyte. In this project, different nanostructured metal oxides will be prepared and their application to the dye- and polymer-sensitized solar cells will be investigated. Objectives: o Fabrication of dye-sensitized and polymer-sensitized solar cells based on novel metal oxide nanostructured layers o Study of the influence of nanostructured layer morphology on the solar cell performance o Optimizing the architecture of the solar cells based on novel nanostructured layers to achieve improved device performance. |
|
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
: Dong Y |
|
List of Research Outputs |
|
Dong Y.,
Sui A., Yiu S.M., Li V.O.K. and Hui C.K., An efficient cluster-based
proactive secret share update scheme for mobile ad hoc networks, Proc.
IEEE ICC. |
|
Dong Y.,
Li V.O.K., Hui C.K. and Yiu S.M., Dynamic distributed
certificate authority services for mobile ad hoc networks, Proc. IEEE
Wireless Communications and Networking Conference. |
|
Researcher
: Du Z |
|
List of Research Outputs |
|
Du Z.,
Zhang Y., Liu Y. and Ni Y., CoI Based
Frequency Slow Dynamics Simulation of AC/DC Interconnected Power Systems
Incorporationg AGC, IEEE Power Engineering Society General Meeting 2007.
|
|
Du Z.,
Liu L., Zhang Y., Guan X.H. and Ni Y.,
Simulation of Frequency Slow Dynamics for Interconnected Power Systems, The
7th IEE International Conference on APSCOM 2006. |
|
Shi L., Zhou H., Tam P.T.C., Chang N., Du Z., Ni Y. and Wu F.F., Developing a Power System Dynamic Security Assessment System, Part II: structure and function design and technology used, International Conference on Power System Technology 2006. |
|
Researcher
: Fan Y |
|
List of Research Outputs |
|
Fan Y., Chau K.T. and Niu S., Development of a new brushless doubly fed doubly salient machine for wind power generation, IEEE Transactions on Magnetics. 2006, 42(10): 3455-3457. |
|
Researcher
: Feng D |
|
List of Research Outputs |
|
Feng
D., Zhong
J. and Gan D., A Discriminative Gid-Cap Setting Method for Ex Ante Market
Power Regulation, IEEE/PES General Meeting, |
|
Researcher
: Fung CW |
|
List of Research Outputs |
|
Fung C.W., Liu C.P. and Pong M.H., A Diagrammatic Approach to Search for Minimum Sampling Frequency and Quantization Resolution for Digital Control of Power Converters, PESC Power Electronics Specialist Conference. 2007. |
|
Fung C.W., Liu C.P. and Pong M.H., Minimum Configuration Design for Digital Control of Power Converters, PCIM Power Electronics Intelligent Motion Power Quality. 2007. |
|
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, Chang C, Chan FHY |
|
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 |
|
Lam H.Y., Fung S.K. and Lee W.K., A Novel Method to Construct Taxonomy of Electrical Appliances Based on Load Signatures, IEEE Transactions on Consumer Electronics. 2007, 53(2): 653-660. |
|
Lam H.Y., Ting K.H., Lee W.K. and Fung S.K., An Analytical Understanding on Voltage-Current Curve of Electrical Load, of International Conference on Electrical Engineering. 2006, MS1-05 007-000283. |
|
Liang D., Lam E.Y.M. and Fung S.K., Direct reconstruction of spiral MRI using least squares quantization table, IEEE International Symposium on Biomedical Imaging: From Nano to Macro. 2007, 105-108. |
|
Su
Q., Fung S.K. and Wong K.K.Y., Clustering Based 3D Level
Set Method for Volumetric Cardiac Segmentation, Conference on Biomedical
Engineering. |
|
Researcher
: Fung WL |
|
List of Research Outputs |
|
Cheung
K.Y.H., Fung W.L.,
Kwok C.H. and Wong K.K.Y.,
All-Optical Packet Switching by Pulsed-Pump Wavelength Exchange in a Highly
Nonlinear Dispersion-Shifted Fiber, Opt. Fiber Comm. Conf.. |
|
Cheung
K.Y.H., Fung W.L., Lai M.F., Chui P.C. and Wong K.K.Y., Optical Pulse Generation
Using Two-Stage Compression Based on Optical Parametric Amplifier, Conf.
on Lasers & Electro-Optics. |
|
Fung W.L. and Wong K.K.Y.,
Investigation of Raman effect on wavelength exchange, Optoelectronics and
Comm. Conf.. |
|
Fung W.L., Cheung K.Y.H. and Wong K.K.Y., Wavelength Exchange with
Enhanced Extinction Ratio in Highly Nonlinear Dispersion-Shifted Fiber, Conf.
on Lasers & Electro-Optics. |
|
Fung W.L., Cheung K.Y.H., Kuo P.P., Kwok C.H. and Wong K.K.Y., Wavelength exchange using two pumps in anomalous regime, European Conf. on Optical Communications. 2006. |
|
Kwok C.H., Cheung K.Y.H., Fung W.L., Kuo P.P., Wong K.K.Y. and Lin C., First
Demonstration of Pulsed Pumping Wavelength Exchange, Optoelectronics and
Comm. Conf.. |
|
Researcher
: Geng B |
|
List of Research Outputs |
|
Geng B.,
Leung Y.Y., Chang C. and Hung Y.S., Effect of preprocessing on
the microarray data analysis, Conference on Biomedical Engineering (BME
2006) . |
|
Researcher
: Guo C |
|
List of Research Outputs |
|
Choy W.C.H., Guo C. and Pang K.H., CVD grown Zinc based Nanostructures on Zinc Selenide microscale grains, Journal of Solid State Phen. 2007, 121-123: 347-350. |
|
Researcher
: He X |
|
List of Research Outputs |
|
He X. and Yung N.H.C., A novel algorithm for estimating vehicle speed from two consecutive images, Proceedings of IEEE Workshop on Applications of Computer Vision. Piscataway/USA, IEEE, 2007, 12. |
|
He X. and Yung N.H.C., New method for overcoming ill-conditioning in vanishing-point-based camera calibration, Optical Engineering - The Journal of SPIE. Bellingham/USA, SPIE, 2007, 46 (3): 10. |
|
Tan Z., He X. and Yung N.H.C., A novel merging criterion incorporating boundary smoothness and region homogeneity for image segmentation, Advances in Image and Video Technology , Lecture Notes in Computer Science. Berlin/Beidelberg, Springer, 2006, 4319/2006: 9. |
|
Tan Z., He X. and Yung N.H.C., A novel merging criterion incorporating boundary smoothness and region homogeneity for image segmentation, Proceedings of IEEE Pacific-Rim Symposium on Image and Video Technology. Piscataway/USA, IEEE, 2006, 10. |
|
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, Proc. IAENG International Conference on Electrical Engineering (ICEE’07) (Best Student Paper Award). 2007, 1636-1639. |
|
Kwan H.K., Ho A.Y.H., Wong N. and Ho K.L., Designing globally optimal delta-sigma modulator topologies via signomial programming, Proc. Intl. Symp. VLSI Design, Automation and Test (VLSI-DAT). 2007, 53-56. |
|
Researcher
: Ho KL |
|
Project Title: |
Application of robust smoothing techniques for range images processing and the multi-resolution analysis of non-uniformly sampled data |
|
Investigator(s): |
Ho KL, Chan SC |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Small Project Funding |
|
Start Date: |
11/2005 |
|
Completion Date: |
10/2006 |
|
Abstract: |
|
Local polynomial regression (LPR) is an effective technique for data smooting and density estimation. A fundamental problem in LPR is the selection of a proper bandwidth, i.e. the scale for data smoothing, to achieve the best bias-variance tradeoff. Currently, a number of efficient variable bandwidth selection methods have been proposed. Unfortunately, these methods are very sensitive to outliers and signal discontinuities, because the least squares (LS) criterion is used in the fitting process. The use of M-estimates, instead of the LS estimates, has received considerable attention recently as a viable means to combat these adverse effects on the estimators. However, the bandwidth selection problem for this nonliear estimator is still an open problem. The objectives of this proposal are two-fold: 1. To develop a new bandwidth selector using M-estimates and Intersection Confidence Intervals (ICI) for LPR in smoothing noisy data with jump discontinuities and impulsive outliers. Preliminary results of our work on uniformly sampled data show that the proposed method is very encouraging and a more detailed investigation, for example on non-uniformly sampled data, 2D data sets, and statistical properties, will be carried out in this work. 2. To apply the proposed robust smoothing techniques to process range images and the multi-resolution analysis of non-uniformly sampled data. Range images captured from laser scanners are very critical to the development of 3D models. The proposed robust variable bandwidth LPR fitting is attractive in this problem, because it also adapts to the local curvature of the object during the smoothing process. Multi-resolution analysis of non-uniform data using the wavelet transform has been an active area of research. The advantages of the proposed approach are that 1) it extends naturally to non-uniform data without any difficulties, 2) because of the local fitting, it makes better use of the available data points, especially when the data set is sparsely distributed. |
|
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., New Recursive Adaptive Beamforming Algorithms for Uniform Concentric Spherical Arrays with Frequency Invariant Characteristics, Proc. IEEE Int'l Symposium on Ciruits and Systems (ISCAS'2007). 2007, 2403-2406. |
|
Kwan H.K., Ho A.Y.H., Wong N. and Ho K.L., Designing globally optimal delta-sigma modulator topologies via signomial programming, Proc. Intl. Symp. VLSI Design, Automation and Test (VLSI-DAT). 2007, 53-56. |
|
Researcher
: Hu B |
|
List of Research Outputs |
|
Hu B., Yeung L.K. and |
|
Hu B.
and Yeung L.K., Load-balanced
Three-stage Switch Architecture, IEEE HPSR 2007. |
|
Hu B., Yeung L.K. and |
|
Researcher
: Hui KN |
|
List of Research Outputs |
|
Choi
H.W., Hui K.N., Lai P.T., Chen P., Zhang X. .H., Tripathy
S. and Chua S. .J., Lasing in Free-standing GaN Microdisks Pivoted on Si, Applied
Physics Letters. 2006, 89: 21 |
|
Choi H.W., Hui K.N., Lai P.T., Chen P., Zhang X.H., Teng J.H., Tripathy S. and Chua S.J., Lasing in GaN Microdisks Pivoted on Si, Applied Physics Letters. 2006, 89: 211101. |
|
Choi
H.W., Hui K.N., Lai P.T., Chen P., Zhang X.H., Teng J.H.,
Tripathy S. and Chua S.J., Stimulated Emission from Free-standing GaN/Si Microdisk
Structures, International Workshop on Nitride Semiconductors 2006 . |
|
Choi H.W., Hui K.N., Lai P.T., Chen P., Zhang X.H., Teng J.H., Tripathy S. and Chua S.J., Stimulated Emission from Free-standing GaN/Si Microdisk Structures, Physica Status Solidi (c). 2007, 4: 2358. |
|
Researcher
: Hui SK |
|
List of Research Outputs |
|
Cheung S.C., Chow M.K.A., Hui S.K., Yang J., Tse H.F. and Wu E.X., Cell number quantification of USPIO-labeled stem cells by MRI: an in vitro study., 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBS). 2006, 476. |
|
Researcher
: Hui SWD |
|
List of Research Outputs |
|
Jiang M., Hui S.W.D., LAU K. .N. and Lam W.H., Cross-layer Downlink Scheduling of Multi-user Multi-Antenna Systems with Heterogeneous Delay Constraints, Proceedings of 2006 IEEE International Symposium on Information Theory . 2006, 2894-2898. |
|
Researcher
: Hung KS |
|
List of Research Outputs |
|
Hung K.S., Wong Lui K.S. and Kwok Y.K., A Trust-Based Geographical Routing Scheme in Sensor Networks, IEEE Wireless Communications & Networking Conference (WCNC). 2007. |
|
Law
C.F., Hung K.S. and Kwok Y.K., A Novel Key Redistribution
Scheme for Wireless Sensor Networks, Proceedings of IEEE International
Conference on Communications (ICC'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., Xu W., Hung Y.S. and Fung P.C.W., Nonlinear dynamic characterization of intra-atrial ECG signals, Biomedizinische Technik. 2006, 51: A7. |
|
Chesi G. and Hung Y.S., On the convexity of sublevel sets of polynomial and homogeneous polynomial Lyapunov functions, 45th IEEE Conf. on Decision and Control. 2006. |
|
Chesi G. and Hung Y.S., Solving polynomial systems: an LMI-based approach, 45th IEEE Conf. on Decision and Control. 2006. |
|
Chesi G. and Hung Y.S., Visual servoing: a global path-planning approach, IEEE Int. Conf. on Robotics and Automation. 2007. |
|
Cheung
W.F.J. and Hung Y.S.,
Robust control of a high precision planar parallel manipulator, 2nd Asian
International Symposium on Mechatronics, 12-15 Dec. 2006. |
|
|
|
Geng
B., Leung Y.Y., Chang C. and Hung Y.S., Effect of preprocessing
on the microarray data analysis, Conference on Biomedical Engineering (BME
2006) . |
|
Leung
Y.Y., Chang C., Hung Y.S. and Fung P.C.W., Gene selection for brain
cancer classification, IEEE International Conference of the Engineering in
Medicine and Biology Society (EMBC 2006). |
|
Leung
Y.Y., Chang C. and Hung Y.S., Microarray data analysis
for acute leukemia classification – is gene selection the only factor?, 4th
|
|
Leung Y.Y., Chang C. and Hung Y.S., Multi-class combination of microarray data: from data preprocessing to functional aspects, Asia-Pacific Bioinformatics Conference (APBC 2007). 2007. |
|
Mai
F. and Hung Y.S.,
Augmented Lagrangian Approach for Projective Reconstruction from Multiple
Views, International Conference on Pattern Recognition ICPR2006, Vol 1
Track 1: Computer Vision and Image Analysis, Session Mon-P-I-3. |
|
Sze
W.F. and Hung Y.S., A New
Approach for Imposing the Singular Constraint of the Fundamental Matrix, 4th
Regional Inter-University Postgraduate Electrical and Electronic Engineering
Conference, Macao, 13-14 July 2006. |
|
Zhong
H., Mai F. and Hung Y.S., Camera Calibration using
Circle and Right Angles, International Conference on Pattern Recognition
ICPR2006, Vol 1 Track 1: Computer Vision and Image Analysis, Session
Mon-P-I-3. |
|
Zhong
H., Cheung W.F.J. and Hung Y.S., Reconstruction from Plane
Mirror Reflection, International Conference on Pattern Recognition
ICPR2006, Vol 1 Track 1: Computer Vision and Image Analysis, Session
Mon-P-I-3, |
|
Zhong H. and Hung Y.S., Self-calibration from one circular motion sequence and two images, Pattern Recognition. 2006, 39, No. 9: 1672-1678. |
|
Researcher
: Ji F |
|
List of Research Outputs |
|
Ji F., Xu J.P., Lai P.T., Li C. and Zhang X.F., Influence of Gate-Electrode Fringing Capacitance on Threshold voltage of nano-MOSFET, Proceedings of 8th ICSICT. Shanghai, 2006, 1318-1320. |
|
Researcher
: Jian L |
|
List of Research Outputs |
|
Chau K.T., Zhang D., Jian L., Jiang J. and Zhang Y., A compact wind-power permanent-magnet generator using magnetic gearing, Computation of Electromagnetic Fields Conference. 2007, CD-ROM. |
|
Researcher
: Jiang J |
|
List of Research Outputs |
|
Chau K.T., Zhang D., Jian L., Jiang J. and Zhang Y., A compact wind-power permanent-magnet generator using magnetic gearing, Computation of Electromagnetic Fields Conference. 2007, CD-ROM. |
|
Chau K.T., Li Y., Jiang J. and Liu C., Design and analysis of a stator-doubly-fed doubly-salient permanent-magnet machine for automotive engines, IEEE Transactions on Magnetics. 2006, 42(10): 3470-3472. |
|
Chau K.T., Li Y., Jiang J. and Niu S., Design and control of a PM brushless hybrid generator for wind power application, IEEE Transactions on Magnetics. 2006, 42(10): 3497-3499. |
|
Chau K.T., Zhang D., Jiang J., Liu C. and Zhang Y.J., Design of a magnetic-geared outer-rotor permanent-magnet brushless motor for electric vehicles, IEEE Joint Magnetism & Magnetic Materials - International Magnetics Conference. 2007, CD-ROM. |
|
Chau K.T., Zhang D., Jiang J., Liu C. and Zhang Y.J., Design of a magnetic-geared outer-rotor permanent-magnet brushless motor for electric vehicles, IEEE Transactions on Magnetics. 2007, 43(6): 2504-2506. |
|
Liu C., Chau K.T. and Jiang J., Design of a new outer-rotor permanent-magnet hybrid machine for wind power generation, Computation of Electromagnetic Fields Conference. 2007, CD-ROM. |
|
Niu S., Chau K.T. and Jiang J., Design and control of a new double-stator cup-rotor permanent-magnet machine for wind power generation, IEEE Joint Magnetism & Magnetic Materials - International Magnetics Conference. 2007, CD-ROM. |
|
Niu S., Chau K.T., Jiang J. and Liu C., Design and control of a new double-stator cup-rotor permanent-magnet machine for wind power generation, IEEE Transactions on Magnetics. 2007, 43(6): 2501-2503. |
|
Niu
S., Chau K.T., Zhang D. and Jiang J., Eddy-current loss analysis
of a double-stator permanent-magnet brushless DC machine, Computation of
Electromagnetic Fields Conference. |
|
Zhang D., Chau K.T., Niu S. and Jiang J., Design and analysis of a double-stator cup-rotor PM integrated-starter-generator, IEEE Industry Applications Society Annual Meeting. 2006, CD-ROM. |
|
Zhang Y., Chau K.T., Jiang J., Zhang D. and Liu C., A finite element – analytical method for electromagnetic field analysis of electric machines with free rotation, IEEE Transactions on Magnetics. 2006, 42(10): 3392-3394. |
|
Researcher
: Jiang M |
|
List of Research Outputs |
|
Jiang M., Hui S.W.D., LAU K. .N. and Lam W.H., Cross-layer Downlink Scheduling of Multi-user Multi-Antenna Systems with Heterogeneous Delay Constraints, Proceedings of 2006 IEEE International Symposium on Information Theory . 2006, 2894-2898. |
|
Researcher
: Jin L |
|
List of Research Outputs |
|
Choy W.C.H., Jin L., Leung Y.P., Ong H.C. and Wang J.B., Synthesis and Analysis of abnormal Wurtzite ZnSe nanorings, International Conf. on Materials for Adv. Technologies. 2007. |
|
Choy W.C.H., Leung Y.P., Jin L. and Wang J.B., Wide Wavelength tuning of ZnSe Nanostructures by Temperature, NSTI Nanotechnology Conference. 2007. |
|
Jin L., Leung Y.P., Choy W.C.H. and Yuk T.T.I., ZnSe Nanorings and their Cathodoluminescence, The Materials Research Society (MRS) 2006 Fall Meeting. 2006. |
|
Researcher
: Kong Z |
|
List of Research Outputs |
|
Kong Z., Wang J. and Kwok Y.K., A New Cross Layer Approach to QoS-Aware Proportional Fairness Packet Scheduling in the Downlink of OFDM Wireless Systems, Proceedings of IEEE International Conference on Communications (ICC'2007), Glasgow, Scotland. 2007. |
|
Kong Z., Kwok Y.K. and Wang J., On Game Theoretic Rate-Maximizing Packet Scheduling in Non-Cooperative Wireless Networks, Proceedings of the IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks (WoWMoM'2007), Helsinki, Finland. 2007. |
|
Researcher
: Kuo PP |
|
List of Research Outputs |
|
Fung W.L., Cheung K.Y.H., Kuo P.P., Kwok C.H. and Wong K.K.Y., Wavelength exchange using two pumps in anomalous regime, European Conf. on Optical Communications. 2006. |
|
Kuo P.P., Chui P.C. and Wong K.K.Y., Suppression of WDM Signal
Crosstalk in Fiber Optical Parametric Amplifier by Using RZ-DPSK Modulation
Format, Opt. Fiber Comm. Conf.. |
|
Kuo P.P., Chui P.C. and Wong K.K.Y., Tunable Repetition-rate
Ultrawideband Monocycle Pulse Generation by using Optical Parametric
Amplifier, Conf. on Lasers & Electro-Optics. |
|
Kwok C.H., Cheung K.Y.H., Fung W.L., Kuo P.P., Wong K.K.Y. and Lin C., First
Demonstration of Pulsed Pumping Wavelength Exchange, Optoelectronics and
Comm. Conf.. |
|
Wong
K.K.Y., Kuo P.P., |
|
Researcher
: Kwan HK |
|
List of Research Outputs |
|
Kwan H.K., Ho A.Y.H., Wong N. and Ho K.L., Designing globally optimal delta-sigma modulator topologies via signomial programming, Proc. Intl. Symp. VLSI Design, Automation and Test (VLSI-DAT). 2007, 53-56. |
|
Researcher
: Kwan MC |
|
List of Research Outputs |
|
Kwan M.C., Cheng K.H., Lai P.T. and Che C.M., Improved Carrier Mobility for Pentacene TFT by NH3 Annealing of Gate Dielectric, Solid-St. Electronics. 2007, 51: 77-80. |
|
Researcher
: Kwan TMT |
|
List of Research Outputs |
|
Kwan T.M.T., Cheng K.H., Lai P.T. and Che C.M., Enhanced Carrier Mobility for
Pentacene TFT by Nitridation of SiO2 Gate Dielectric, Proceedings of
RIUPEEEC. |
|
Researcher
: Kwok HMS |
|
List of Research Outputs |
|
Kwok H.M.S. and Lam E.Y.M., FPGA-based high-speed true random number generator for cryptographic applications, IEEE Tencon. 2006. |
|
Researcher
: Kwok TO |
|
List of Research Outputs |
|
Kwok T.O. and Kwok Y.K., Computation and Energy Efficient Image Processing in Wireless Sensor Networks Based on Reconfigurable Computing, Proceedings of the Workshop on Parallel and Distributed Multimedia (PDM), in conjunction with 35th International Conference on Parallel Processing (ICPP'2006), Columbus, Ohio, USA. 2006. |
|
Kwok T.O. and Kwok Y.K., Hardware
Task Scheduling in FPGA-Based Reconfigurable Embedded Computing Systems, In:
Evi Syukur, Laurence T. Yang, and Seng Wai Loke, Handbook on Mobile and
Ubiquitous Computing: Innovations and Perspectives. |
|
Project Title: |
On cache invalidation schemes for wireless client-server systems with link adaptation and game theoretic considerations |
|
Investigator(s): |
|
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
|
Start Date: |
09/2004 |
|
Completion Date: |
08/2006 |
|
Abstract: |
|
Low complexity cache invalidation schemes
that can judiciously handle multimedia background traffic (e.g., voice calls
or multimedia messaging) under a realistic channel model; game theoretic data
broadcast (server-side), caching (client-side), and invalidation
(client-side) strategies that can be applied in scenarios where selfish users
exists; a practical design for implementation of the proposed algorithms in a
real wireless network (e.g., IEEE |
|
List of Research Outputs |
|
Chek C.H. and Kwok Y.K., Design and Evaluation of Practical Coexistence Management Schemes for Bluetooth and IEEE 802.11b Systems, Computer Networks. 2007, 51(8): 2086-2103. |
|
Hung K.S., Wong Lui K.S. and Kwok Y.K., A Trust-Based Geographical Routing Scheme in Sensor Networks, IEEE Wireless Communications & Networking Conference (WCNC). 2007. |
|
Hwang K., Cai M., Kwok Y.K., Song S., Chen Y. and Chen
Y., DHT-Based Security Infrastructure for Trusted Internet and Grid
Computing, International Journal of Critical Infrastructures.
|
|
Kong Z., Wang J. and Kwok Y.K., A New Cross Layer Approach to QoS-Aware Proportional Fairness Packet Scheduling in the Downlink of OFDM Wireless Systems, Proceedings of IEEE International Conference on Communications (ICC'2007), Glasgow, Scotland. 2007. |
|
Kong Z., Kwok Y.K. and Wang J., On Game Theoretic Rate-Maximizing Packet Scheduling in Non-Cooperative Wireless Networks, Proceedings of the IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks (WoWMoM'2007), Helsinki, Finland. 2007. |
|
Kwok T.O. and Kwok Y.K., Computation and Energy Efficient Image Processing in Wireless Sensor Networks Based on Reconfigurable Computing, Proceedings of the Workshop on Parallel and Distributed Multimedia (PDM), in conjunction with 35th International Conference on Parallel Processing (ICPP'2006), Columbus, Ohio, USA. 2006. |
|
Kwok
T.O. and Kwok Y.K.,
Hardware Task Scheduling in FPGA-Based Reconfigurable Embedded Computing
Systems, In: Evi Syukur, Laurence T. Yang, and Seng Wai Loke, Handbook on
Mobile and Ubiquitous Computing: Innovations and Perspectives. |
|
Kwok
Y.K., Editorial Board Member, International Journal of Sensor Networks. |
|
Kwok
Y.K., Incentive Issues in IEEE 802.11x
Wireless Networks, In: Yang Xiao and Yi Pan, Emerging Wireless LANs,
Wireless PANs, and Wireless MANs. |
|
Kwok
Y.K., Incentive Issues in Peer-to-Peer
Systems, In: Hossein Bidgoli, The Handbook of Computer Networks. |
|
Kwok
Y.K., Key Management in Wireless Sensor
Networks, In: Yang Xiao and Yi Pan, Security in Distributed and Networking
Systems. |
|
Kwok
Y.K., Local Arrangement Chair, The 2007
IEEE Wireless Communications and Networking Conference, |
|
Kwok Y.K., Hwang K. and Song S., Selfish Grids: Game Theoretic Modeling and NAS/PAS Benchmark Evaluation, IEEE Transactions on Parallel and Distributed Systems. 2007, 18(5): 621-636. |
|
Kwok Y.K., Subject Area Editor (Peer-to-Peer Computing), Journal of Parallel and Distributed Computing. 2007. |
|
Kwok
Y.K., Technical Program Committee Member, The
2007 IASTED International Conference on Parallel and Distributed Computing
and Networks (PDCN 2007), |
|
Kwok Y.K., Technical Program Committee Member, The First IEEE LCN Workshop on Network Measurements (WNM 2006), in conjunction with The 31st Annual IEEE Conference on Local Computer Networks (LCN 2006), Tampa, Florida, USA. 2006. |
|
Kwok Y.K., Technical Program Committee Member, The First International Workshop on Embedded Software Optimization (ESO 2006), In conjunction with The 2006 International Conference on Embedded and Ubiquitous Computing (EUC 2006), Seoul, Korea. 2006. |
|
Kwok Y.K., Technical Program Committee Member, The First Workshop on Parallel and Distributed Computing for Multimedia, The 2006 International Conference on Parallel Processing (ICPP-2006), Columbus, Ohio, USA. 2006. |
|
Kwok
Y.K., Technical Program Committee Member, Workshop
on Embedded Computing, The 2006 International Conference on Parallel
Processing (ICPP-2006), |
|
Kwok
Y.K. and Lau V.K.N., Wireless Internet and
|
|
Law
C.F., Hung K.S. and Kwok Y.K., A Novel Key
Redistribution Scheme for Wireless Sensor Networks, Proceedings of IEEE
International Conference on Communications (ICC'2007), |
|
Law C.F. and Kwok Y.K., On Efficient Key Redistribution in Wireless Sensor Networks, Proceedings of the IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks (WoWMoM'2007), Helsinki, Finland. 2007. |
|
Lin
X. and Kwok Y.K., CAEM: A
Channel Adaptive Approach to Energy Management for Wireless Sensor Networks, Computer Communications. The |
|
Liu Y., Kwok Y.K. and Wang J., A New Self Organized Clustering Scheme for Hierarchical TH-PPM UWB Wireless Ad Hoc Networks, Proceedings of the 17th Annual IEEE International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC'2006), Helsinki, Finland. 2006. |
|
Liu Y., Kwok Y.K. and Wang J., An Adaptive Packet Scheduling Algorithm for Efficient Downlink Bandwidth Allocation in UWB Based Wireless Infrastructure Networks, Computer Communications. 2007, 30: 2087-2095. |
|
Liu Y., Kwok Y.K. and Wang J., Downlink TCP Performance Under Cross Layer Rate and Power Allocation in Infrastructure TH-PPM UWB Networks, Proceedings of IEEE International Conference on Communications (ICC'2007), Glasgow, Scotland. 2007. |
|
Tsoi K.Y.L. and Kwok Y.K., Practical Algorithms for Real-Time Scheduling of Video Data in a Local Area Network Environment, Journal of Supercomputing. Springer, 2007, 39(2): 131-147. |
|
Yeung
K.H. and Kwok Y.K., A Game
Theoretic Approach to Power Aware Wireless Data Access, IEEE Transactions on Mobile Computing. |
|
Yeung K.H. and Kwok Y.K., On Maximizing Revenue for Client-Server Based Wireless Data Access in the Presence of Peer-to-Peer Sharing, Proceedings of the 17th Annual IEEE International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC'2006), Helsinki, Finland. 2006. |
|
Yip H.K. and Kwok Y.K., Practical Channel State Aware and Cooperative Packet Scheduling Disciplines for Coordinating Colocated Bluetooth and IEEE 802.11b Devices, Computer Communications. 2007, 30(7): 1569-1587. |
|
Researcher
: Lai MF |
|
List of Research Outputs |
|
Cheung
K.Y.H., Fung W.L., Lai M.F., Chui P.C. and Wong K.K.Y., Optical Pulse Generation
Using Two-Stage Compression Based on Optical Parametric Amplifier, Conf.
on Lasers & Electro-Optics. |
|
Researcher
: Lai PT |
|
Project Title: |
High-quality gate dielectrics for GaN-based MISFET's |
|
Investigator(s): |
Lai PT |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
|
Start Date: |
09/2003 |
|
Completion Date: |
08/2006 |
|
Abstract: |
|
To develop a high-quality oxynitride gate dielectric for GaN MISFET's with high resistance to metal diffusion, good thickness uniformity and low fixed charge density; to develop an improved understanding of the nature of the GaN/oxynitride interface. Understanding the nature of the GaN/oxynitride interface is just as important now as it was for the Si/SiO2 interface system in the early 1960's. By performing extensive chemical, material, and electrical research, the oxidation kinetics of GaN, the stoichiometry and the bonding structures of the GaN/oxynitride interface, and their effects on the resulting electrical characteristics of the GaN/oxynitride interface (interface-state and fixed-charge densities) will be investigated; to develop efficient GaN surface passivation/nitridation techniques for improved GaN/oxynitride interface; to perform detailed electrical and reliability characterization of GaN 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 GaN gate dielectric with interfacial and bulk qualities close to the Si/oxynitride system. |
|
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.B., Xu J.P., Lai P.T., Li Y.P. and Xu S.G., Gate Leakage Properties of MOS Devices with Tri-Layer High-k Gate Dielectric, Microelectronics Reliability. 2007, 47: 937-943. |
|
Choi H.W., Yang B.L., Lai P.T., Chen P., Zhang X.H., Teng J.H. and Chua S.J., GaN-MQW Microdisks Pivoted on Si Substrate, Physica Status Solidi (a). 2007, 204: 272-276. |
|
Choi
H.W., Hui K.N., Lai P.T., Chen P., Zhang X. .H.,
Tripathy S. and Chua S. .J., Lasing in Free-standing GaN Microdisks Pivoted
on Si, Applied Physics Letters. 2006, 89: 21 |
|
Choi H.W., Hui K.N., Lai P.T., Chen P., Zhang X.H., Teng J.H., Tripathy S. and Chua S.J., Lasing in GaN Microdisks Pivoted on Si, Applied Physics Letters. 2006, 89: 211101. |
|
Choi
H.W., Hui K.N., Lai P.T., Chen P., Zhang X.H., Teng
J.H., Tripathy S. and Chua S.J., Stimulated Emission from Free-standing
GaN/Si Microdisk Structures, International Workshop on Nitride
Semiconductors 2006 . |
|
Choi H.W., Hui K.N., Lai P.T., Chen P., Zhang X.H., Teng J.H., Tripathy S. and Chua S.J., Stimulated Emission from Free-standing GaN/Si Microdisk Structures, Physica Status Solidi (c). 2007, 4: 2358. |
|
Ji F., Xu J.P., Lai P.T., Li C. and Zhang X.F., Influence of Gate-Electrode Fringing Capacitance on Threshold voltage of nano-MOSFET, Proceedings of 8th ICSICT. Shanghai, 2006, 1318-1320. |
|
Kwan M.C., Cheng K.H., Lai P.T. and Che C.M., Improved Carrier Mobility for Pentacene TFT by NH3 Annealing of Gate Dielectric, Solid-St. Electronics. 2007, 51: 77-80. |
|
Kwan
T.M.T., Cheng K.H., Lai P.T. and Che C.M., Enhanced Carrier Mobility for
Pentacene TFT by Nitridation of SiO2 Gate Dielectric, Proceedings of
RIUPEEEC. |
|
Lai
P.T., Fabrication of high-performance gate
dielectrics for Ge MOSFET's by using water vapor, |
|
Lai P.T., Xu J.P., Li C., Zou X. and Chen W.B., Preparation of high-quality gate dielectrics for Ge MOSFETs in wet ambients, Proceedings of 8th ICSICT. Shanghai, 2006, 132-135. |
|
Lin L. and Lai P.T., Effects of NO annealing and GaOxNy interlayer on GaN MIS capacitor with SiO2 gate dielectric, Journal of Electrochemical Society. 2007, 154: G58-62. |
|
Lin L., Luo Y., Lai P.T. and Lau K.M., Influence of oxidation and annealing temperatures on the quality of Ga2O3 film grown on GaN, Thin Solid Films. 2006, 515: 2111-2115. |
|
Lin
L., Lai P.T. and Lau K.M.,
Reduction of Oxide Charges for GaN MISFET with SiO2 Gate Dielectric through
NO Annealing , Proceedings of RIUPEEEC. |
|
Liu Y.R., Peng J.B., Lai P.T., Yang K.X. and |
|
Liu Y.R., Peng J.B. and Lai P.T., Modeling the threshold-voltage shift of polymer thin-film transistors under constant and variable gate-bias stresses, Semiconductor Science & Technology. 2007, 22: 259-262. |
|
Tang W.M., Lai P.T., Leung C.H. and Xu J.P., A comparison of MISiC Schottky-diode hydrogen sensors made by NO, N2O or NH3 nitridations, IEEE Trans. Electron Devices. 2006, ED-53: 2378-2383. |
|
Wu Z., Lai P.T. and Sin J...K...O..., A New High-Temperature Thermal Sensor Based on Large-Grain Polysilicon on Insulator, Sensors and Actuators A. 2006, 130: 129-134. |
|
Xiang H., Xu Z., Vellaisamy A.L.R., Che C.M. and Lai P.T., Method for Measurement of the Density of Thin Films of Small Organic Molecules , Review of Scientific Instruments . 2007, 78: 034104-1 - 034104-5. |
|
Yang B., Kowk P.C.W. and Lai P.T., Influence of TCE concentration in thermal oxidation on reliability of SiC MOS capacitors under Flowler-Nordheim electron injection, Microelectronics Reliability. 2006, 46: 2044-2048. |
|
Zhang X.F., Xu J., Lai P.T., Zou X. and Li C., Modeling of Scattering at High-k Dielectric/SiO2 Interface of Strained SiGe MOSFETs, Proceedings of 8th ICSICT. Shanghai, 2006, 1343-1345. |
|
Zou
X., Li C., Xu J.P., Lai P.T. and Chen W.B., Electrical
Characteristics of Ge MOS Capacitor with HfTiON as Gate Dielectric, Proceedings
of RIUPEEEC. |
|
Zou X., Xu J.P., Lai P.T., Li C. and Zhang X.F., Gate Leakage Model of Ge MOS Capacitor with High-k Gate Dielectric, Proceedings of 8th ICSICT. Shanghai, 2006, 433-435. |
|
Zou
X., Xu J.P., Li C. and Lai P.T., Suppressed growth of
unstable low-k GeOx interlayer in Ge metal-oxide-semiconductor capacitor with
high-k gate dielectric by annealing in water vapor, Applied Physics
Letters. 2007, 90: 16 |
|
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. |
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List of Research Outputs |
|
Chan S.H., Wong A. and Lam E.Y.M., Inverse synthesis of phase-shifting mask for optical lithography, OSA Topical Meeting in Signal Recovery and Synthesis. 2007. |
|
Chan W.S., Lam E.Y.M. and Ng K.P., Extending the depth of field in a compound-eye imaging system with super-resolution reconstruction, International Conference on Pattern Recognition. 2006, 3: 623-626. |
|
Cheng J., Chung R., Lam E.Y.M. and Fung K.S.M., Bit-pairing codification for binary pattern projection system, International Conference on Pattern Recognition. 2006, 2: 263-266. |
|
Choi K.S., Lam E.Y.M. and Wong K.K.Y., Automatic source camera identification using the intrinsic lens radial distortion, Optics Express. 2006, 14: 11551-11565. |
|
Choi
K.S., Lam E.Y.M. and Wong K.K.Y., Feature selection in source
camera identification, IEEE Int. Conf. on Syst., Man. and Cybernetics.
|
|
Choi K.S., Lam E.Y.M. and Wong K.K.Y., Source camera identification by JPEG compression statistics for image forensics, IEEE Tencon. 2006. |
|
Chow K.Y., Wong Lui K.S. and Lam E.Y.M., Achieving 360 degree angle coverage with minimum transmission cost in visual sensor networks, IEEE Wireless Communications and Networking Conference. 2007. |
|
Chow K.Y., Wong Lui K.S. and Lam E.Y.M., Efficient on-demand image transmission in visual sensor networks, EURASIP Journal on Advances in Signal Processing. 2007, 2007: 95076. |
|
Chow K.Y., Wong Lui K.S. and Lam E.Y.M., Efficient selective image transmission in visual sensor networks, IEEE 65th Vehicular Technology Conference. 2007. |
|
Chow K.Y., Wong Lui K.S. and Lam E.Y.M., Maximizing angle coverage in visual sensor networks, IEEE International Conference on Communications. 2007. |
|
Dong M., Chung R., Lam E.Y.M. and Fung S.M., Use of paraplanar constraint for parallel inspection of wafer bump heights, International Conference on Image Processing, Computer Vision, and Pattern Recognition. 2007. |
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Kwok H.M.S. and Lam E.Y.M., FPGA-based high-speed true random number generator for cryptographic applications, IEEE Tencon. 2006. |
|
Lam E.Y.M., Blind bi-level image restoration with iterated quadratic programming, IEEE Transactions on Circuits and Systems II. 2007, 54: 52-56. |
|
Lam E.Y.M., Speckle statistics in homomorphic filtering of medical ultrasound images, World Congress on Medical Physics and Biomedical Engineering. 2006, 4706. |
|
Liang D., Lam E.Y.M. and Fung S.K., Direct reconstruction of spiral MRI using least squares quantization table, IEEE International Symposium on Biomedical Imaging: From Nano to Macro. 2007, 105-108. |
|
Liang D. and Lam E.Y.M., Image indexing using weighted color co-occurrence matrix and feature selection, IEEE Tencon. 2006. |
|
Mak Y.H.G., Wong A.K.K. and Lam E.Y.M., Optimization of photomask design for reducing aberration-induced placement error, IEEE Transactions on Semiconductor Manufacturing. 2006, 19: 277-285. |
|
Ng M.K., Shen H., Lam E.Y.M. and Zhang L., A total variation regularization based super-resolution reconstruction algorithm for digital video, EURASIP Journal on Advances in Signal Processing. 2007, 2007: 74585. |
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Shen Y., Lam E.Y.M. and Wong N., Binary image restoration by signomial programming, OSA Topical Meeting in Signal Recovery and Synthesis. 2007. |
|
Shen Y., Lam E.Y.M. and Wong N., Binary image restoration using positive semidefinite programming, Optics Letters. 2007, 32: 121-123. |
|
Shen Y., Lam E.Y.M. and Wong N., Restoration of binary images using positive semidefinite programming, IEEE Tencon. 2006. |
|
Shen Y., Lam E.Y.M. and Wong N., Robust binary image deconvolution with positive semidefinite programming, IAENG International Journal of Applied Mathematics. 2007, 36: 41-48. |
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Shen Y., Lam E.Y.M. and Wong N., Robust binary image deconvolution with positive semidefinite programming, Recent Advances in Engineering and Computer Science. Newswood, 2007, 159-166. |
|
Suen
T.Y., Lam E.Y.M. and Wong K.K.Y., Curvature domain image
stitching, IEEE Int. Conf. on Sys. |
|
Suen T.Y., Lam E.Y.M. and Wong K.K.Y., Image mosaicking with optimized matching of global and local contents, IEEE Tencon. 2006. |
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Suen T.Y., Lam E.Y.M. and Wong K.K.Y., Photographic stitching with optimized object and color matching based on image derivatives, Optics Express. 2007, 15: 7689-7696. |
|
Researcher
: Lam HY |
|
List of Research Outputs |
|
Lam H.Y., Fung S.K. and Lee W.K., A Novel Method to Construct Taxonomy of Electrical Appliances Based on Load Signatures, IEEE Transactions on Consumer Electronics. 2007, 53(2): 653-660. |
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Lam H.Y., Ting K.H., Lee W.K. and Fung S.K., An Analytical Understanding on Voltage-Current Curve of Electrical Load, of International Conference on Electrical Engineering. 2006, MS1-05 007-000283. |
|
Lam H.Y., Voltage - Current Trajectory: A 2-Dimensional Approach to
Understand Electrical Load Signatures, MPhil Thesis. |
|
Researcher
: Lam HY |
|
List of Research Outputs |
|
Lam H.Y., Fung S.K. and Lee W.K., A Novel Method to Construct Taxonomy of Electrical Appliances Based on Load Signatures, IEEE Transactions on Consumer Electronics. 2007, 53(2): 653-660. |
|
Lam H.Y., Ting K.H., Lee W.K. and Fung S.K., An Analytical Understanding on Voltage-Current Curve of Electrical Load, of International Conference on Electrical Engineering. 2006, MS1-05 007-000283. |
|
Lam H.Y., Voltage - Current Trajectory: A 2-Dimensional Approach to
Understand Electrical Load Signatures, MPhil Thesis. |
|
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. |
|
List of Research Outputs |
|
Jiang M., Hui S.W.D., LAU K. .N. and Lam W.H., Cross-layer Downlink Scheduling of Multi-user Multi-Antenna Systems with Heterogeneous Delay Constraints, Proceedings of 2006 IEEE International Symposium on Information Theory . 2006, 2894-2898. |
|
Researcher
: Lau HF |
|
List of Research Outputs |
|
Lau
H.F., Hui E.S., Siu H.F., Yang J., Khong P.L. and Wu E.X., In vivo DTI study of
developmental rat brain, ISMRM 15th Scientific |
|
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 |
|
Abstract: |
|
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 |
|
Investigator(s): |
Lau KN |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Seed Funding Programme for Basic Research |
|
Start Date: |
02/2004 |
|
Abstract: |
|
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. |
|
Researcher
: Law CF |
|
List of Research Outputs |
|
Law C.F., Hung K.S. and Kwok Y.K., A Novel Key Redistribution
Scheme for Wireless Sensor Networks, Proceedings of IEEE International
Conference on Communications (ICC'2007), |
|
Law C.F. and Kwok Y.K., On Efficient Key Redistribution in Wireless Sensor Networks, Proceedings of the IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks (WoWMoM'2007), Helsinki, Finland. 2007. |
|
Researcher
: Law TM |
|
List of Research Outputs |
|
Law T.M., Chan S.C. and Zhang Z., A Turbo Receiver for Wireless Mc-Cdma Communications Using Map-Em Demodulator with Ldpc Codes under Narrowband Interference, Proc. IEEE 12th DSP Workshop. 2006, 94-98. |
|
Researcher
: Lee CW |
|
List of Research Outputs |
|
Lee C.W., Ng K.K.S. and Zhong J., Portfolio Optimization in
Transmission Investment in Deregulated Market, IEEE/PES General Meeting, |
|
Lee C.W., Ng K.K.S., Zhong J. and Wu F.F., Transmission Expansion Planning
From Past to Future, IEEE/PES 2006 Power Systems Conference adn Exposition.
|
|
Lee C.W., Ng K.K.S. and Zhong J., Value-based Transmission Expansion Planning in Deregulated Market, The 38th North American Power Symposium . 2006. |
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Ng K.K.S., Lee C.W. and Zhong J., A Game-Theoretic Approach to study Strategic Interactions between Transmission and Generation Expansion Planning, The 38th North American Power Symposium. 2006. |
|
Researcher
: Lee CY |
|
List of Research Outputs |
|
Lee C.Y., Cheung P.Y.S., Lam K.S.L. and Li V.O.K., A noninvasive method to estimate variation of blood glucose level using metabolic measurements, US Provisional Patent, 60881265, . 2007. |
|
Lee
C.Y., Cheung
P.Y.S. and Lam K.S.L., A novel approach to estimate variations of blood
glucose using noninvasive metabolic measurements, The fifth IASTED
international conference on biomedical engineering, |
|
Researcher
: Lee CY |
|
List of Research Outputs |
|
Lee C.Y., Cheung P.Y.S., Lam K.S.L. and Li V.O.K., A noninvasive method to estimate variation of blood glucose level using metabolic measurements, US Provisional Patent, 60881265, . 2007. |
|
Lee
C.Y., Cheung
P.Y.S. and Lam K.S.L., A novel approach to estimate variations of blood
glucose using noninvasive metabolic measurements, The fifth IASTED
international conference on biomedical engineering, |
|
Researcher
: Lee WK |
|
List of Research Outputs |
|
Lam H.Y., Fung S.K. and Lee W.K., A Novel Method to Construct Taxonomy of Electrical Appliances Based on Load Signatures, IEEE Transactions on Consumer Electronics. 2007, 53(2): 653-660. |
|
Lam H.Y., Ting K.H., Lee W.K. and Fung S.K., An Analytical Understanding on Voltage-Current Curve of Electrical Load, of International Conference on Electrical Engineering. 2006, MS1-05 007-000283. |
|
Researcher
: Lei CU |
|
List of Research Outputs |
|
Cheung C.M., Lei C.U. and Wong N., Design of 2D linear-phase IIR filters via Schur decomposition and discrete-time vector fitting, Proc. IEEE Conf. Industrial Electronics and Applications (ICIEA). 2007, 2403-2406. |
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Cheung C.M., Lei C.U. and Wong N., Novel 2D linear-phase IIR filter design and application in noise removal, Proc. IAENG International Conference on Electrical Engineering (ICEE’07). 2007, 1793-1796. |
|
Ho A.Y.H., Lei C.U. and Wong N., A common subexpression sharing approach for multiplierless synthesis of multiple constant multiplications, Proc. IAENG International Conference on Electrical Engineering (ICEE’07) (Best Student Paper Award). 2007, 1636-1639. |
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Lei C.U. and Wong N., Multiplierless polynomial-operator-based IIR filters for efficient VLSI implementation, Proc. IEEE Region 10 Conf. (TENCON). 2006. |
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Wong N. and Lei C.U., FIR filter approximation by IIR filters based on discrete-time vector fitting, Proc. Int. Symp. Circuits and Systems (ISCAS). 2007, 2343-2346. |
|
Researcher
: Leung CH |
|
List of Research Outputs |
|
Tang W.M., Lai P.T., Leung C.H. and Xu J.P., A comparison of MISiC Schottky-diode hydrogen sensors made by NO, N2O or NH3 nitridations, IEEE Trans. Electron Devices. 2006, ED-53: 2378-2383. |
|
Researcher
: Leung KC |
|
List of Research Outputs |
|
Leung K.C., Li V.O.K. and Yang D., An overview of packet recordering in Transmission Control Protocol (TCP): Problems, solutions, and challenges, IEEE Transactions on Parallel and Distributed Systems. 2007, 18: 522-535. |
|
Yang
D., Leung K.C. and Li V.O.K., Simulation-based comparisons
of solutions for TCP packet reordering in wireless networks, Proc. IEEE
Wireless Communications and Networking Conference. |
|
Researcher
: Leung YP |
|
List of Research Outputs |
|
Choy W.C.H., Jin L., Leung Y.P., Ong H.C. and Wang J.B., Synthesis and Analysis of abnormal Wurtzite ZnSe nanorings, International Conf. on Materials for Adv. Technologies. 2007. |
|
Choy W.C.H., Leung Y.P., Jin L. and Wang J.B., Wide Wavelength tuning of ZnSe Nanostructures by Temperature, NSTI Nanotechnology Conference. 2007. |
|
Jin L., Leung Y.P., Choy W.C.H. and Yuk T.T.I., ZnSe Nanorings and their Cathodoluminescence, The Materials Research Society (MRS) 2006 Fall Meeting. 2006. |
|
Researcher
: Leung YY |
|
List of Research Outputs |
|
Geng
B., Leung Y.Y., Chang C. and Hung Y.S., Effect of preprocessing on
the microarray data analysis, Conference on Biomedical Engineering (BME
2006) . |
|
Leung Y.Y., Chang C., Hung Y.S. and Fung P.C.W., Gene selection for brain
cancer classification, IEEE International Conference of the Engineering in
Medicine and Biology Society (EMBC 2006). |
|
Leung Y.Y., Chang C. and Hung Y.S., Microarray data analysis for
acute leukemia classification – is gene selection the only factor?, 4th |
|
Leung Y.Y., Chang C. and Hung Y.S., Multi-class combination of microarray data: from data preprocessing to functional aspects, Asia-Pacific Bioinformatics Conference (APBC 2007). 2007. |
|
Researcher
: Li C |
|
List of Research Outputs |
|
Ji F., Xu J.P., Lai P.T., Li C. and Zhang X.F., Influence of Gate-Electrode Fringing Capacitance on Threshold voltage of nano-MOSFET, Proceedings of 8th ICSICT. Shanghai, 2006, 1318-1320. |
|
Lai P.T., Xu J.P., Li C., Zou X. and Chen W.B., Preparation of high-quality gate dielectrics for Ge MOSFETs in wet ambients, Proceedings of 8th ICSICT. Shanghai, 2006, 132-135. |
|
Zhang X.F., Xu J., Lai P.T., Zou X. and Li C., Modeling of Scattering at High-k Dielectric/SiO2 Interface of Strained SiGe MOSFETs, Proceedings of 8th ICSICT. Shanghai, 2006, 1343-1345. |
|
Zou X., Xu J. .P., Li C. and Chen W. .B., A Threshold-Voltage Model of SiGe-Channel pMOSFET without Si Cap layer, Microelectronics Reliability. 2007, 47: 391-394. |
|
Zou
X., Li C., Xu J.P., Lai P.T. and Chen W.B., Electrical
Characteristics of Ge MOS Capacitor with HfTiON as Gate Dielectric, Proceedings
of RIUPEEEC. |
|
Zou X., Xu J.P., Lai P.T., Li C. and Zhang X.F., Gate Leakage Model of Ge MOS Capacitor with High-k Gate Dielectric, Proceedings of 8th ICSICT. Shanghai, 2006, 433-435. |
|
Zou
X., Xu J.P., Li C.
and Lai P.T., Suppressed growth of
unstable low-k GeOx interlayer in Ge metal-oxide-semiconductor capacitor with
high-k gate dielectric by annealing in water vapor, Applied Physics
Letters. 2007, 90: 16 |
|
Researcher
: Li G |
|
Project Title: |
The
Neuroprotective Effect of Coenzyme Q |
|
Investigator(s): |
Li G, Yang ES, Jack Jr CR |
|
Department: |
Medical Faculty |
|
Source(s) of Funding: |
Seed Funding Programme for Basic Research |
|
Start Date: |
03/2006 |
|
Abstract: |
|
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 |
|
Project Title: |
Effect of imbalance of kinases and protein phosphatases on deposit of B amyloid and Tau Pathology in double transgenic APP/PS1 Mice |
|
Investigator(s): |
Li G, Yang X, Yang ES |
|
Department: |
Medical Faculty |
|
Source(s) of Funding: |
Germany/Hong Kong Joint Research Scheme |
|
Start Date: |
01/2007 |
|
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 |
|
List of Research Outputs |
|
Li C.Y., Li G., Wai P.K.A. and Li V.O.K., Optical burst switching with large switching overhead, IEEE/OSA Journal of Lightwave Technology. 2007, 25: 451-462. |
|
Researcher
: Li G |
|
List of Research Outputs |
|
Li C.Y., Li G., Wai P.K.A. and Li V.O.K., Optical burst switching with large switching overhead, IEEE/OSA Journal of Lightwave Technology. 2007, 25: 451-462. |
|
Researcher
: Li J |
|
List of Research Outputs |
|
Li J.
and Yeung L.K., Most Reliable Routing
in WDM Mesh Networks with Arbitrary Risk Distribution, IEEE ICC 2007. |
|
Researcher
: Li VOK |
|
Project Title: |
Information
technology for a 21st Century |
|
Investigator(s): |
Li VOK |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Matching Fund for Area of Excellence (AoE) |
|
Start Date: |
01/2000 |
|
Abstract: |
|
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. |
|
Project Title: |
Applications of wireless communications and data mining |
|
Investigator(s): |
Li VOK, Yeung LK, Cheung DWL, Law NWY, Ng KP, Mamoulis N |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Seed Funding for Strategic Research Theme |
|
Start Date: |
05/2005 |
|
Abstract: |
|
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. |
|
Project Title: |
Cross Layer
Optimization for Smart Antenna Based |
|
Investigator(s): |
Li VOK, Shen D |
|
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: 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 |
|
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 |
|
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. |
|
List of Research Outputs |
|
Chan J., Li V.O.K. and Wong Lui K.S., Performance comparison of scheduling algorithms for peer-to-peer collaborative file distribution, IEEE Journal on Selected Areas in Comm., Special Issue on Peer-to-Peer Communications and Applications. 2007, 25: 146-154. |
|
Chan S.K.J., Li V.O.K. and Wong Lui K.S., Performance Comparison of Scheduling Algorithms for Peer-to-Peer Collaborative File Distribution, IEEE Journal on Selected Areas in Communications (JSAC). 2007, 25: 146 - 154. |
|
Diao Z., Shen D. and Li V.O.K., CPLD-PGPS Scheduler in Wireless OFDM Systems, IEEE Transactions on Wireless Communications. 2006, 5: 2923-2931. |
|
Dong
Y., Sui A., Yiu S.M., Li V.O.K. and Hui C.K., An efficient cluster-based proactive
secret share update scheme for mobile ad hoc networks, Proc. IEEE ICC.
|
|
Dong
Y., Li V.O.K., Hui C.K. and Yiu S.M., Dynamic distributed
certificate authority services for mobile ad hoc networks, Proc. IEEE
Wireless Communications and Networking Conference. |
|
Han S., Zhou S., Wang J., Li V.O.K. and Park K., Suboptimal transmission of orthogonal space-time block codes over correlated distributed antennas, IEEE Signal Processing Letters. 2007, 14: 89-92. |
|
Lee C.Y., Cheung P.Y.S., Lam K.S.L. and Li V.O.K., A noninvasive method to estimate variation of blood glucose level using metabolic measurements, US Provisional Patent, 60881265, . 2007. |
|
Leung K.C., Li V.O.K. and Yang D., An overview of packet recordering in Transmission Control Protocol (TCP): Problems, solutions, and challenges, IEEE Transactions on Parallel and Distributed Systems. 2007, 18: 522-535. |
|
Li C.Y., Wai P.K.A. and Li V.O.K., Optical burst switching
with burst access mode passive optical networks, Proc. IEEE LANMAN
Workshop. |
|
Li C.Y., Li G., Wai P.K.A. and Li V.O.K., Optical burst switching with large switching overhead, IEEE/OSA Journal of Lightwave Technology. 2007, 25: 451-462. |
|
Liu
X., Li V.O.K. and Zhang
P., Joint radio resource management through vertical handoffs in |
|
Sun
F., Li V.O.K., Diao Z. and Xu Z.Y., A new
cross-layer designed multipolling MAC protocol over WLANs, Proc. IEEE
Wireless Communications and Networking Conference. |
|
Sun
F. and Li V.O.K., An
adaptive TCP algorithm to support handoffs in heterogeneous overlay networks,
Proc. IEEE TENCON. |
|
Sun
F., Li V.O.K., Diao Z. and Xu Z.Y.,
Contention-based medium access control with physical layer assisted link differentiation,
Proc. IEEE ICC. |
|
Sun
F., Li V.O.K., Diao Z. and Xu Z.Y., Medium access
control with physical layer assisted loss differentiation, Proc. IEEE
Globecom. |
|
Toh C.K., Guichal G., Kim D. and Li V.O.K., Service location protocols for mobile wireless and hoc networks, Int. J. Ad Hoc and Ubiquitous Computing. 2007, 2: 250-262. |
|
Wong Y.W., Lee J.Y.B., Li V.O.K. and Chan G.S.H., Supporting interactive video-on-demand with adaptive multicast streaming, IEEE Trans. on Circuits and Systems for Video Technology. 2007, 17: 129-142. |
|
Yang D., Shao W., Shen D. and Li V.O.K., Hybrid busy tone and carrier sense-based MAC protocol in multi-hop and hoc networks, Int. J. Ad Hoc and Ubiquitous Computing. 2007, 2: 208-214. |
|
Yang
D., Leung K.C. and Li V.O.K., Simulation-based
comparisons of solutions for TCP packet reordering in wireless networks, Proc.
IEEE Wireless Communications and Networking Conference. |
|
Yang
G., Shen D. and Li V.O.K., Adaptive video streaming
over multi-channel ad hoc networks, Proc. IEEE Globecom. |
|
Zhang H., Zhang L., Shan X.M. and Li V.O.K., Probabilistic search in
P2P networks with high node degree variation, Proc. IEEE ICC. |
|
Zhang X., Hong J., Zhang L., Shan X.M.
and Li V.O.K., CC-TDMA:
Coloring-and coding-based multi-channel TDMA scheduling for wireless ad hoc
networks, Proc. IEEE Wireless Communications and Networking Conference.
|
|
Zhou K., Yeung L.K. and Li V.O.K., A Simple Yet Efficient Active Queue Management Scheme, Computer Networks. 2006, 50: 3784-3794. |
|
Researcher
: Li Y |
|
List of Research Outputs |
|
Chau K.T., Li Y., Jiang J. and Liu C., Design and analysis of a stator-doubly-fed doubly-salient permanent-magnet machine for automotive engines, IEEE Transactions on Magnetics. 2006, 42(10): 3470-3472. |
|
Chau K.T., Li Y., Jiang J. and Niu S., Design and control of a PM brushless hybrid generator for wind power application, IEEE Transactions on Magnetics. 2006, 42(10): 3497-3499. |
|
Researcher
: Liang C |
|
List of Research Outputs |
|
Choy W.C.H. and Liang C., Voltage-controlled Color-tunable organic light-emitting diodes by using europium organometallic complex, International Conf. on Materials for Adv. Technologies 2007. |
|
Liang
C. and Choy
W.C.H., Color-tunable organic light-emitting diodes by using europium
organometallic complex, Applied Physics Letters. 2006, 89: 25 |
|
Researcher
: Liang D |
|
List of Research Outputs |
|
Liang D., Lam E.Y.M. and Fung S.K., Direct reconstruction of spiral MRI using least squares quantization table, IEEE International Symposium on Biomedical Imaging: From Nano to Macro. 2007, 105-108. |
|
Liang D. and Lam E.Y.M., Image indexing using weighted color co-occurrence matrix and feature selection, IEEE Tencon. 2006. |
|
Researcher
: Lin L |
|
List of Research Outputs |
|
Lin L. and Lai P.T., Effects of NO annealing and GaOxNy interlayer on GaN MIS capacitor with SiO2 gate dielectric, Journal of Electrochemical Society. 2007, 154: G58-62. |
|
Lin L., Luo Y., Lai P.T. and Lau K.M., Influence of oxidation and annealing temperatures on the quality of Ga2O3 film grown on GaN, Thin Solid Films. 2006, 515: 2111-2115. |
|
Lin L.,
Lai P.T. and Lau K.M., Reduction of
Oxide Charges for GaN MISFET with SiO2 Gate Dielectric through NO Annealing ,
Proceedings of RIUPEEEC. |
|
Researcher
: Lin X |
|
List of Research Outputs |
|
Lin X.
and Kwok Y.K., CAEM: A Channel
Adaptive Approach to Energy Management for Wireless Sensor Networks, Computer Communications. The |
|
Researcher
: Ling X |
|
List of Research Outputs |
|
Ling X. and Yeung L.K., Joint Access Point Placement and Channel Assignment for 802.11 Wireless Local Area Networks, IEEE Trans. on Wireless Communications. 2006, 5: 2705-2711. |
|
Researcher
: Liu C |
|
List of Research Outputs |
|
Chau K.T., Li Y., Jiang J. and Liu C., Design and analysis of a stator-doubly-fed doubly-salient permanent-magnet machine for automotive engines, IEEE Transactions on Magnetics. 2006, 42(10): 3470-3472. |
|
Chau K.T., Zhang D., Jiang J., Liu C. and Zhang Y.J., Design of a magnetic-geared outer-rotor permanent-magnet brushless motor for electric vehicles, IEEE Joint Magnetism & Magnetic Materials - International Magnetics Conference. 2007, CD-ROM. |
|
Chau K.T., Zhang D., Jiang J., Liu C. and Zhang Y.J., Design of a magnetic-geared outer-rotor permanent-magnet brushless motor for electric vehicles, IEEE Transactions on Magnetics. 2007, 43(6): 2504-2506. |
|
Liu C., Chau K.T. and Jiang J., Design of a new outer-rotor permanent-magnet hybrid machine for wind power generation, Computation of Electromagnetic Fields Conference. 2007, CD-ROM. |
|
Niu S., Chau K.T., Jiang J. and Liu C., Design and control of a new double-stator cup-rotor permanent-magnet machine for wind power generation, IEEE Transactions on Magnetics. 2007, 43(6): 2501-2503. |
|
Wang Z., Chau K.T. and Liu C., Improvement of electromagnetic compatibility of induction motor drives using optimized chaotic PWM, IEEE Joint Magnetism & Magnetic Materials - International Magnetics Conference. 2007, CD-ROM. |
|
Wang Z., Chau K.T. and Liu C., Improvement of electromagnetic compatibility of motor drives using chaotic PWM, IEEE Transactions on Magnetics. 2007, 43(6): 2612-2614. |
|
Zhang Y., Chau K.T., Jiang J., Zhang D. and Liu C., A finite element – analytical method for electromagnetic field analysis of electric machines with free rotation, IEEE Transactions on Magnetics. 2006, 42(10): 3392-3394. |
|
Zhu X., Cheng M., Zhao W., Liu C. and Chau K.T., A transient co-simulation approach to performance analysis of hybrid excited doubly salient machine considering indirect field-circuit coupling, IEEE Transactions on Magnetics. 2007, 43(6): 2558-2560. |
|
Researcher
: Liu K |
|
List of Research Outputs |
|
Liu K., Ni Y. and Wu F.F., A Novel Model for Congestion Management Based on ORA-Based Decentralized Optimization, IEEE NAPS 2006. IEEE. |
|
Researcher
: Liu X |
|
List of Research Outputs |
|
Liu X.,
Li V.O.K. and Zhang P., Joint radio
resource management through vertical handoffs in |
|
Researcher
: Liu Y |
|
List of Research Outputs |
|
Liu Y., Kwok Y.K. and Wang J., A New Self Organized Clustering Scheme for Hierarchical TH-PPM UWB Wireless Ad Hoc Networks, Proceedings of the 17th Annual IEEE International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC'2006), Helsinki, Finland. 2006. |
|
Liu Y., Kwok Y.K. and Wang J., An Adaptive Packet Scheduling Algorithm for Efficient Downlink Bandwidth Allocation in UWB Based Wireless Infrastructure Networks, Computer Communications. 2007, 30: 2087-2095. |
|
Liu Y., Kwok Y.K. and Wang J., Downlink TCP Performance Under Cross Layer Rate and Power Allocation in Infrastructure TH-PPM UWB Networks, Proceedings of IEEE International Conference on Communications (ICC'2007), Glasgow, Scotland. 2007. |
|
Liu Y. and Wu F.F., Generator Bidding in Oligopolistic Electricity Markets Using Optimal Control : Fundamentals and Application, IEEE Transactions on Power Systems. 2006, 21, No. 3: 1050-1061. |
|
Zhang
W., McPherson D.B. and Liu Y., Interference Cancellation
for Click Evoked OAE Recordings, American Auditory Society Bulletin, |
|
Researcher
: Liu Y |
|
List of Research Outputs |
|
Liu Y., Kwok Y.K. and Wang J., A New Self Organized Clustering Scheme for Hierarchical TH-PPM UWB Wireless Ad Hoc Networks, Proceedings of the 17th Annual IEEE International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC'2006), Helsinki, Finland. 2006. |
|
Liu Y., Kwok Y.K. and Wang J., An Adaptive Packet Scheduling Algorithm for Efficient Downlink Bandwidth Allocation in UWB Based Wireless Infrastructure Networks, Computer Communications. 2007, 30: 2087-2095. |
|
Liu Y., Kwok Y.K. and Wang J., Downlink TCP Performance Under Cross Layer Rate and Power Allocation in Infrastructure TH-PPM UWB Networks, Proceedings of IEEE International Conference on Communications (ICC'2007), Glasgow, Scotland. 2007. |
|
Liu Y. and Wu F.F., Generator Bidding in Oligopolistic Electricity Markets Using Optimal Control : Fundamentals and Application, IEEE Transactions on Power Systems. 2006, 21, No. 3: 1050-1061. |
|
Zhang
W., McPherson D.B. and Liu Y., Interference Cancellation
for Click Evoked OAE Recordings, American Auditory Society Bulletin, |
|
Researcher
: Liu Y |
|
List of Research Outputs |
|
Liu Y., Kwok Y.K. and Wang J., A New Self Organized Clustering Scheme for Hierarchical TH-PPM UWB Wireless Ad Hoc Networks, Proceedings of the 17th Annual IEEE International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC'2006), Helsinki, Finland. 2006. |
|
Liu Y., Kwok Y.K. and Wang J., An Adaptive Packet Scheduling Algorithm for Efficient Downlink Bandwidth Allocation in UWB Based Wireless Infrastructure Networks, Computer Communications. 2007, 30: 2087-2095. |
|
Liu Y., Kwok Y.K. and Wang J., Downlink TCP Performance Under Cross Layer Rate and Power Allocation in Infrastructure TH-PPM UWB Networks, Proceedings of IEEE International Conference on Communications (ICC'2007), Glasgow, Scotland. 2007. |
|
Liu Y. and Wu F.F., Generator Bidding in Oligopolistic Electricity Markets Using Optimal Control : Fundamentals and Application, IEEE Transactions on Power Systems. 2006, 21, No. 3: 1050-1061. |
|
Zhang
W., McPherson D.B. and Liu Y., Interference Cancellation
for Click Evoked OAE Recordings, American Auditory Society Bulletin, |
|
Researcher
: Lui SH |
|
List of Research Outputs |
|
Lui S.H. and Wong N., Design of nested transconductance-capacitance compensation amplifier via nonconvex polynomial optimization, Proc. Intl. Symp. on Intelligent Signal Processing and Communication Systems (ISPACS). 2006, 542-545. |
|
Lui S.H. and Wong N., Systematic power minimization in multibit delta-sigma analog-to-digital converters, Proc. IEEE Region 10 Conf. (TENCON). 2006. |
|
Researcher
: Luo Y |
|
List of Research Outputs |
|
Lin L., Luo Y., Lai P.T. and Lau K.M., Influence of oxidation and annealing temperatures on the quality of Ga2O3 film grown on GaN, Thin Solid Films. 2006, 515: 2111-2115. |
|
Researcher
: Ma KT |
|
List of Research Outputs |
|
Tam V.W.L., Ma K.T. and Wong Lui K.S., An Adaptive Framework with Multiple Schemes for Event and Query Distribution in Wireless Sensor Networks, Proceedings of IEEE Consumer Communications and Networking Conference (CCNC’07). 2007. |
|
Researcher
: Ma S |
|
List of Research Outputs |
|
Ma S., Zeng Y. and Ng T.S., Rake-based multi-user detection for quasi-synchronous SDMA systems, IEEE Transactions on Communications. 2007, 55(3): 394-397. |
|
Ma
S. and Ng
T.S., Semi-blind time domain equalization for MIMO-OFDM systems, Proc.
IEEE Asia Pacific Conference on Circuits and Systems (APCCAS 2006), |
|
Ma S., Wong N. and Ng T.S., Signal detection for MIMO-OFDM systems with time offsets, Proc. Global Telecommunications Conference (GLOBECOM). 2006, 1-5. |
|
Ma S. and Ng T.S., Time domain signal detection based on second-order statistics for MIMO-OFDM systems, IEEE Transactions on Signal Processing. 2007, 55(3): 1150-1158. |
|
Pan
X., Zhou Y., Ma S. and Ng T.S., An Improved Derivative Method
for Symbol Synchronization in OFDM Systems, Wireless Communications and
Networking Conference, 2007.WCNC 2007. IEEE. |
|
Pan
X., Zhou Y., Ma S. and Ng T.S., An improved derivative method
for symbol synchronization in OFDM systems, Proceedings IEEE Wireless
Communications and Networking Conference (WCNC2007), |
|
Researcher
: Ma S |
|
List of Research Outputs |
|
Ma S., Zeng Y. and Ng T.S., Rake-based multi-user detection for quasi-synchronous SDMA systems, IEEE Transactions on Communications. 2007, 55(3): 394-397. |
|
Ma
S. and Ng
T.S., Semi-blind time domain equalization for MIMO-OFDM systems, Proc.
IEEE Asia Pacific Conference on Circuits and Systems (APCCAS 2006), |
|
Ma S., Wong N. and Ng T.S., Signal detection for MIMO-OFDM systems with time offsets, Proc. Global Telecommunications Conference (GLOBECOM). 2006, 1-5. |
|
Ma S. and Ng T.S., Time domain signal detection based on second-order statistics for MIMO-OFDM systems, IEEE Transactions on Signal Processing. 2007, 55(3): 1150-1158. |
|
Pan
X., Zhou Y., Ma S. and Ng T.S., An Improved Derivative Method
for Symbol Synchronization in OFDM Systems, Wireless Communications and
Networking Conference, 2007.WCNC 2007. IEEE. |
|
Pan
X., Zhou Y., Ma S. and Ng T.S., An improved derivative method
for symbol synchronization in OFDM systems, Proceedings IEEE Wireless
Communications and Networking Conference (WCNC2007), |
|
Researcher
: Mai F |
|
List of Research Outputs |
|
Mai F.
and Hung Y.S., Augmented Lagrangian
Approach for Projective Reconstruction from Multiple Views, International
Conference on Pattern Recognition ICPR2006, Vol 1 Track 1: Computer Vision
and Image Analysis, Session Mon-P-I-3. |
|
Zhong
H., Mai F. and Hung Y.S., Camera Calibration using
Circle and Right Angles, International Conference on Pattern Recognition
ICPR2006, Vol 1 Track 1: Computer Vision and Image Analysis, Session
Mon-P-I-3. |
|
Researcher
: Mak YHG |
|
List of Research Outputs |
|
Mak Y.H.G., Wong A.K.K. and Lam E.Y.M., Optimization of photomask design for reducing aberration-induced placement error, IEEE Transactions on Semiconductor Manufacturing. 2006, 19: 277-285. |
|
Researcher
: Ng CW |
|
List of Research Outputs |
|
Ng C.W., Wong N. and Ng T.S., Efficient FPGA Implementation of Bit-Stream Multipliers, Electronics Letters. 2007, 43: 496-497. |
|
Researcher
: Ng KKS |
|
List of Research Outputs |
|
Lee
C.W., Ng K.K.S. and Zhong J., Portfolio Optimization in
Transmission Investment in Deregulated Market, IEEE/PES General Meeting, |
|
Lee
C.W., Ng K.K.S., Zhong J. and Wu F.F., Transmission Expansion Planning
From Past to Future, IEEE/PES 2006 Power Systems Conference adn Exposition.
|
|
Lee C.W., Ng K.K.S. and Zhong J., Value-based Transmission Expansion Planning in Deregulated Market, The 38th North American Power Symposium . 2006. |
|
Ng K.K.S., Lee C.W. and Zhong J., A Game-Theoretic Approach to study Strategic Interactions between Transmission and Generation Expansion Planning, The 38th North American Power Symposium. 2006. |
|
Researcher
: Ng MC |
|
List of Research Outputs |
|
Ng
M.C., Ho
S.L., Ho J.T., Luk D.K. and Yang E.S.,
Comparison study of normalization methods by visual fMRI. , International
Society for Magnetic Resonance in Medicine (ISMRM 2007). [Abs] . |
|
Researcher
: Ng TS |
|
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: |
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: |
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., Timing robust joint carrier frequency and channel estimation for OFDM systems, Proceedings IEEE Wireless Communications and Networking Conference (WCNC 2007), Hong Kong. 2007. |
|
Ma S., Zeng Y. and Ng T.S., Rake-based multi-user detection for quasi-synchronous SDMA systems, IEEE Transactions on Communications. 2007, 55(3): 394-397. |
|
Ma S.
and Ng T.S., Semi-blind time
domain equalization for MIMO-OFDM systems, Proc. IEEE Asia Pacific
Conference on Circuits and Systems (APCCAS 2006), |
|
Ma S., Wong N. and Ng T.S., Signal detection for MIMO-OFDM systems with time offsets, Proc. Global Telecommunications Conference (GLOBECOM). 2006, 1-5. |
|
Ma S. and Ng T.S., Time domain signal detection based on second-order statistics for MIMO-OFDM systems, IEEE Transactions on Signal Processing. 2007, 55(3): 1150-1158. |
|
Ng C.W., Wong N. and Ng T.S., Efficient FPGA Implementation of Bit-Stream Multipliers, Electronics Letters. 2007, 43: 496-497. |
|
Ng T.S., Associate Editor, Engineering Applications of Artificial Intelligence. 2006. |
|
Pan S. and Ng T.S., A multi-code CDMA slotted ALOHA system with sub-packet channel load sensing protocol, Chinese Journal of Electronics. 2006, 15(5): 527-532. |
|
Pan
X., Zhou Y., Ma S. and Ng T.S., An Improved Derivative
Method for Symbol Synchronization in OFDM Systems, Wireless Communications
and Networking Conference, 2007.WCNC 2007. IEEE. |
|
Pan
X., Zhou Y., Ma S. and Ng T.S., An improved derivative
method for symbol synchronization in OFDM systems, Proceedings IEEE Wireless
Communications and Networking Conference (WCNC2007), |
|
Wong N., Balakrishnan V., Koh C.K. and Ng T.S., Two Algorithms for Fast and Accurate Passivity-Preserving Model Order Reduction, IEEE Trans. on Computer Aided Design of Integrated Circuits and Systems. 2006, 25: 2062-2075. |
|
Zhou
Y., Wang J. and Ng T.S., A Novel Code Assignment
Scheme for Broadband OFCDM Systems, TENCON 2006. 2006 IEEE Region 10
Conference. |
|
Zhou Y., Wang J. and Ng T.S., A novel code assignment
scheme for broadband OFCDM systems, Proceeding IEEE TENCON2006, |
|
Researcher
: Ngai CK |
|
List of Research Outputs |
|
Ngai C.K., Pang C.C. and Yung N.H.C., TUTTI: a time-centric
Multi-modal transit information system for |
|
List of Research Outputs |
|
Ngan Y.T. and Pang G.K.H., A Novel Method for Patterned Fabric Inspection using Bollinger Bands, Optical Engineering . 2006, 45: No. 8. |
|
Ngan Y.T. and Pang G.K.H.,
Patterned texture inspection by the regular bands method, 9th Asian Textile
Conference. |
|
Researcher
: Ni Y |
|
Project Title: |
Application of dynamic phasor theory to power electronic device modeling for the study of their impacts on power system dynamic performance |
|
Investigator(s): |
Ni Y |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Seed Funding Programme for Basic Research |
|
Start Date: |
02/2004 |
|
Completion Date: |
02/2007 |
|
Abstract: |
|
To develop an advanced analysis tool for future control coordination among PEDs and existing power system elements and hence enhance system operation stability and security noticeably. |
|
Project Title: |
Large scale AC/DC power system stability and emergency control |
|
Investigator(s): |
Ni Y, Wu FF |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Seed Funding Programme for Applied Research |
|
Start Date: |
12/2005 |
|
Completion Date: |
10/2006 |
|
Abstract: |
|
The CLP power system is connected with S. China Grid (SCG). Considering the huge amount of power transferred from the western area to Guangdong through five 500kV ac transmission lines and three 500kV dc transmission lines in 2005, the CLP-SCG interconnected large-scale power system has become one of the most complex power systems in the world. The objective of the project is to investigate advanced control strategies for enhancing system stability under large disturbances and increasing power transfer limits. Advanced nonlinear robust adaptive control theory will be applied for the prupose. The key issues to be addressed include control law design, realization, performance verification and conrtoller coordination. |
|
List of Research Outputs |
|
Du
Z., Zhang Y., Liu Y. and Ni Y.,
CoI Based Frequency Slow Dynamics Simulation of AC/DC Interconnected Power
Systems Incorporationg AGC, IEEE Power Engineering Society General Meeting
2007. |
|
Du
Z., Liu L., Zhang Y., Guan X.H. and Ni
Y., Simulation of Frequency Slow Dynamics for Interconnected Power
Systems, The 7th IEE International Conference on APSCOM 2006. |
|
Liu K., Ni Y. and Wu F.F., A Novel Model for Congestion Management Based on ORA-Based Decentralized Optimization, IEEE NAPS 2006. IEEE. |
|
Shi L., Zhou H., Tam P.T.C., Chang N., Du Z., Ni Y. and Wu F.F., Developing a Power System Dynamic Security Assessment System, Part II: structure and function design and technology used, International Conference on Power System Technology 2006. |
|
Zhou
H., Wu F.F. and Ni Y., Design for Grid Service-based
Future Power System Control Centers, APSCOM, Hong Kong, Oct 2006. |
|
Researcher
: Niu S |
|
List of Research Outputs |
|
Chau K.T., Li Y., Jiang J. and Niu S., Design and control of a PM brushless hybrid generator for wind power application, IEEE Transactions on Magnetics. 2006, 42(10): 3497-3499. |
|
Fan Y., Chau K.T. and Niu S., Development of a new brushless doubly fed doubly salient machine for wind power generation, IEEE Transactions on Magnetics. 2006, 42(10): 3455-3457. |
|
Niu S., Chau K.T. and Jiang J., Design and control of a new double-stator cup-rotor permanent-magnet machine for wind power generation, IEEE Joint Magnetism & Magnetic Materials - International Magnetics Conference. 2007, CD-ROM. |
|
Niu S., Chau K.T., Jiang J. and Liu C., Design and control of a new double-stator cup-rotor permanent-magnet machine for wind power generation, IEEE Transactions on Magnetics. 2007, 43(6): 2501-2503. |
|
Niu S.,
Chau K.T., Zhang D. and Jiang J., Eddy-current loss analysis of
a double-stator permanent-magnet brushless DC machine, Computation of
Electromagnetic Fields Conference. |
|
Ye S., Chau K.T. and Niu S., Chaoization of a single-phase induction motor for washing machines, IEEE Industry Applications Society Annual Meeting. 2006, CD-ROM. |
|
Zhang D., Chau K.T., Niu S. and Jiang J., Design and analysis of a double-stator cup-rotor PM integrated-starter-generator, IEEE Industry Applications Society Annual Meeting. 2006, CD-ROM. |
|
Zhang D., Niu S., Chau K.T., Jiang J.Z. and Gong Y., Design and analysis of a double-stator cup-rotor directly driven permanent magnet wind power generator, CES/IEEE Power Electronics and Motion Control Conference. 2006, CD-ROM. |
|
Researcher
: Pan S |
|
List of Research Outputs |
|
Pan S. and Ng T.S., A multi-code CDMA slotted ALOHA system with sub-packet channel load sensing protocol, Chinese Journal of Electronics. 2006, 15(5): 527-532. |
|
Researcher
: Pan X |
|
List of Research Outputs |
|
Pan
X., Zhou
Y., Ma S. and Ng T.S., An Improved Derivative Method
for Symbol Synchronization in OFDM Systems, Wireless Communications and
Networking Conference, 2007.WCNC 2007. IEEE. |
|
Pan X.,
Zhou Y., Ma S. and Ng T.S., An improved derivative method
for symbol synchronization in OFDM systems, Proceedings IEEE Wireless
Communications and Networking Conference (WCNC2007), |
|
Researcher
: Pan X |
|
List of Research Outputs |
|
Pan
X., Zhou
Y., Ma S. and Ng T.S., An Improved Derivative Method
for Symbol Synchronization in OFDM Systems, Wireless Communications and
Networking Conference, 2007.WCNC 2007. IEEE. |
|
Pan X.,
Zhou Y., Ma S. and Ng T.S., An improved derivative method
for symbol synchronization in OFDM systems, Proceedings IEEE Wireless
Communications and Networking Conference (WCNC2007), |
|
Researcher
: Pang CC |
|
List of Research Outputs |
|
Ngai
C.K., Pang C.C. and Yung N.H.C., TUTTI: a time-centric
Multi-modal transit information system for |
|
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 |
|
Chu
M.H. and Pang G.K.H.,
Solder paste inspection by special LED lighting for SMT manufacturing of
printed circuit boards, Intellegent Manufacturing Systems, IMS' 07. |
|
Ngan Y.T. and Pang G.K.H., A Novel Method for Patterned Fabric Inspection using Bollinger Bands, Optical Engineering . 2006, 45: No. 8. |
|
Ngan
Y.T. and Pang G.K.H.,
Patterned texture inspection by the regular bands method, 9th Asian
Textile Conference. |
|
Pang G.K.H., Control and Intelligent Systems,published by The International Association of Science and Technology for Development (IASTED). ACTA Press, 2007. |
|
Researcher
: Pang H |
|
List of Research Outputs |
|
Pang H.,
Lo W...C... and Pong M.H.,
Rationalization of Electrical Distribution Systems in Buildings, Renewable
Energy 2006 International Conference organized by The International Solar
Energy Society (ISES). |
|
Researcher
: Pang Y |
|
List of Research Outputs |
|
Pang Y.
and Shen G.G., Improving Excitation
Accuracy by Genetic Algorithm Optimized RF pulse, Journal of Magnetic
Resonance. |
|
Pang Y. and Shen G.G., Improving Excitation And Inversion Accuracy By Optimized Rf Pulse Using Genetic Algorithm , Journal of Magnetic Resonance. Netherland, Elsevier Inc., 2007, 186: 86-93. |
|
Pang Y.,
Liu Z.G., Wei J. and Shen G.G., Minimize the Power of
Variable-Rate Gradient Pulse, Joint Annual Meeting of ISMRM-ESMRMB. |
|
Pang Y.,
Liu Z...G..., Wei J. and Shen G.G., Minimize the Power of
Variable-Rate Gradient Pulse, Joint Annual Meeting of |
|
Qu P.,
Wu B., Wang C., Yuan J., Wei J., Pang Y. and Shen G.G., Interative Bac-Projection
Reconstruction for Radial SENSE, Joint Annual Meeting of ISMRM-ESMRMB,
Berlin, Germany . |
|
Qu
P., Wu B., Wang C., Yuan J., Wei J., Pang Y. and Shen G.G., Interative Back-Projection
Reconstruction for Radial SENSE, Joint Annual Meeting of ISMRM-ESMRMB.
|
|
Wang
C., Pang Y., Wu B. and Shen G.G., Evaluation of Degenerated
Birdcage Coil for Parallel Imaging, Joint Annual Meeting of ISMRM-ESMRMB,
Berlin, Germany. |
|
Wang
C., Pang Y., Wu B. and Shen G.G., SAR and B1 Filed in Human
Head Model for Birdcage, TEM and Microstrip Coils at 7T , Joint Annual
Meeting of ISMRM-ESMRMB. |
|
Wang
C., Pang Y., Wu B. and Shen G.G., SAR and B1 Filed in Human
Head Model for Birdcage, TEM and Microstrip Coils at 7T, Joint Annual
Meeting of |
|
Wei
J., Liu Z.G., Yuan J., Pang Y. and Shen G.G., Digital Wireless Transmission
for MRI Signal, Joint Annual Meeting of ISMRM-ESMRMB. |
|
Wei
J., Liu G...Z..., Yuan J., Pang Y. and Shen G.G., Digital Wireless Transmission
for MRI Signal, Joint Annual Meetingf of |
|
Wu
B., Pang Y., Wei J., Qu P., Wang C., Yuan J. and Shen G.G., Comparison Between Broadband
Decoupling Methods for Microstrip Array, Joint Annual Meeting of
ISMRM-ESMRMB. |
|
Wu
B., Pang Y., Wei J., Qu P., Wang C., Yuan J. and Shen G.G., Comparison Between Broadband
Decoupling Methods for Microstrip Array, Joint Annual Meeting of
ISMRM-ESMRMB, Berlin, Germany. |
|
Yuan J., Wei J., Cai G..., Pang Y., Du C... and Shen G.G., A 4-Channel Optical Link Transmission for RF coil array at 1.5T, Joint Annual Meeting of ISMRM-ESMRMB, Berlin, Germany. Gernamy, 2007, 1036. |
|
Yuan
J., Wei J., Cao G., Pang Y., Du C. and Shen G.G., A 4-channel Optical Link
Transmission For Rf Coil Array At 1.5t, Joint Annual Meeting of
ISMRM-ESMRMB. |
|
Researcher
: Pong MH |
|
List of Research Outputs |
|
Fung C.W., Liu C.P. and Pong M.H., A Diagrammatic Approach to Search for Minimum Sampling Frequency and Quantization Resolution for Digital Control of Power Converters, PESC Power Electronics Specialist Conference. 2007. |
|
Fung C.W., Liu C.P. and Pong M.H., Minimum Configuration Design for Digital Control of Power Converters, PCIM Power Electronics Intelligent Motion Power Quality. 2007. |
|
Liu C...P..., Tse C...K..., Poon
N...K..., Pong M.H. and Lai
Y...M..., A PFC Voltage Regulator with Low Input Current Distortion Derived
from a Rectifierless Topology, In: IEEE, IEEE Transaction on Power
Electronics. |
|
Liu C...P..., Poon N...K... and Pong M.H., A rectifier apparatus and a method for operating a rectifier apparatus, Chinese Patent Office. 2006. |
|
Lu D...C..., Liu C...P..., Poon N...K... and Pong M.H., A Single Phase Voltage Regulator Module (VRM) with Stepping Inductance for Fast Transient Response, IEEE Transaction on Power Electronics. IEEE, 2007, 22: 417-424. |
|
Pang
H., Lo W...C... and Pong M.H.,
Rationalization of Electrical Distribution Systems in Buildings, Renewable
Energy 2006 International Conference organized by The International Solar
Energy Society (ISES). |
|
Pong M.H., Five patents sold through Versitech, Related amount US$88.744k. 2007. |
|
Pong
M.H., Poon N.K. and Liu C.P., High efficiency
driver for color light emitting diodes (LED), |
|
Pong M.H., Licensing of technology in US patent no. 6,597,587, Modern Sense Ltd.. 2007. |
|
Poon N...K..., Pong M.H. and Liu C.P., Dimmable
Ballast with Resistive Input and Low Electromagnetic Interference, |
|
Poon N...K..., Pong M.H. and Liu C...P..., High Efficiency Driver for Color LED, Chinese Patent Office. 2006. |
|
Poon N...K..., Pong M.H. and Liu C...P..., Power
Converters, |
|
Researcher
: Qu P |
|
List of Research Outputs |
|
Qu P.,
Luo J..., Zhang B..., Wang J... and Shen
G.G., An Improved Iterative SENSE Reconstruction Method, Concept in
Magnetic Resonance, Part B: Magnetic Resonance Engineering. |
|
Qu P.,
Luo J., Zhang B., Wang J. and Shen G.G.,
An Improved Iterative SENSE Reconstruction Method, Magnetic
Resonance Engineering. |
|
Qu P., Wang C. and Shen G.G., Discrepancy-based Adaptive
Regularization For Grappa Reconstruction, Journal
of Magnetic Resonance Imaging. |
|
Qu
P., Wu
B., Wang C., Yuan J., Wei J., Pang Y. and Shen G.G., Interative Bac-Projection
Reconstruction for Radial SENSE, Joint Annual Meeting of ISMRM-ESMRMB,
Berlin, Germany . |
|
Qu P., Wu B., Wang C., Yuan J., Wei J., Pang Y. and Shen G.G., Interative Back-Projection
Reconstruction for Radial SENSE, Joint Annual Meeting of ISMRM-ESMRMB.
|
|
Wang
C., Qu P., Yuan J. and Shen G.G., Evaluation of Degenerated
Birdcage Coil for Parallel Imagingp. ., Joint Annual Meeting of
ISMRM-ESMRMB. |
|
Wang
C., Qu P., Wu B. and Shen G.G., Potential Advantage of
Higher-order Modes of Birdcage Coil for Parallel Imaging, Journal of
Magnetic Resonance. |
|
Wu B., Zhang X.L., Qu P. and Shen G.G., Capacitively Decoupled Tunable Loop Microstrp (tlm) Array At 7t, Magnetic Resonance Imaging. Netherland, Wiley InterScience, 2007, V. 25 issue 3: 418-424. |
|
Wu
B., Pang Y., Wei J., Qu P., Wang C., Yuan J. and Shen G.G., Comparison Between Broadband
Decoupling Methods for Microstrip Array, Joint Annual Meeting of
ISMRM-ESMRMB. |
|
Wu
B., Pang Y., Wei J., Qu P., Wang C., Yuan J. and Shen G.G., Comparison Between Broadband
Decoupling Methods for Microstrip Array, Joint Annual Meeting of
ISMRM-ESMRMB, Berlin, Germany. |
|
Wu B., Zhang X.L., Qu P. and Shen G.G., Design of an Inductively Decoupled Microstrip Array at 9.4T, Journal of Magnetic Resonance. Netherland, Elsevier Inc., 2006, 182: 126-132. |
|
Wu
B., Qu P., Wang C., Yuan J. and Shen G.G., Interconnecting L/C
Components for Decoupling and Its Application to the Low-field Open MRI
Array, Concept in Magnetic Resonance, Part B: Magnetic Resonance Engineering.
|
|
Wu
B., Qu P., Wang C., Yuan J. and Shen G.G., Interconnecting L/C
Components for Decoupling and Its Application to the Low-field Open MRI
Array, Magnetic Resonance Ingineering. |
|
Researcher
: Qu P |
|
List of Research Outputs |
|
Qu P.,
Luo J..., Zhang B..., Wang J... and Shen
G.G., An Improved Iterative SENSE Reconstruction Method, Concept in
Magnetic Resonance, Part B: Magnetic Resonance Engineering. |
|
Qu P.,
Luo J., Zhang B., Wang J. and Shen G.G.,
An Improved Iterative SENSE Reconstruction Method, Magnetic
Resonance Engineering. |
|
Qu P., Wang C. and Shen G.G., Discrepancy-based Adaptive
Regularization For Grappa Reconstruction, Journal
of Magnetic Resonance Imaging. |
|
Qu
P., Wu
B., Wang C., Yuan J., Wei J., Pang Y. and Shen G.G., Interative Bac-Projection
Reconstruction for Radial SENSE, Joint Annual Meeting of ISMRM-ESMRMB,
Berlin, Germany . |
|
Qu P., Wu B., Wang C., Yuan J., Wei J., Pang Y. and Shen G.G., Interative Back-Projection
Reconstruction for Radial SENSE, Joint Annual Meeting of ISMRM-ESMRMB.
|
|
Wang
C., Qu P., Yuan J. and Shen G.G., Evaluation of Degenerated
Birdcage Coil for Parallel Imagingp. ., Joint Annual Meeting of
ISMRM-ESMRMB. |
|
Wang
C., Qu P., Wu B. and Shen G.G., Potential Advantage of
Higher-order Modes of Birdcage Coil for Parallel Imaging, Journal of
Magnetic Resonance. |
|
Wu B., Zhang X.L., Qu P. and Shen G.G., Capacitively Decoupled Tunable Loop Microstrp (tlm) Array At 7t, Magnetic Resonance Imaging. Netherland, Wiley InterScience, 2007, V. 25 issue 3: 418-424. |
|
Wu
B., Pang Y., Wei J., Qu P., Wang C., Yuan J. and Shen G.G., Comparison Between Broadband
Decoupling Methods for Microstrip Array, Joint Annual Meeting of
ISMRM-ESMRMB. |
|
Wu
B., Pang Y., Wei J., Qu P., Wang C., Yuan J. and Shen G.G., Comparison Between Broadband
Decoupling Methods for Microstrip Array, Joint Annual Meeting of
ISMRM-ESMRMB, Berlin, Germany. |
|
Wu B., Zhang X.L., Qu P. and Shen G.G., Design of an Inductively Decoupled Microstrip Array at 9.4T, Journal of Magnetic Resonance. Netherland, Elsevier Inc., 2006, 182: 126-132. |
|
Wu
B., Qu P., Wang C., Yuan J. and Shen G.G., Interconnecting L/C
Components for Decoupling and Its Application to the Low-field Open MRI
Array, Concept in Magnetic Resonance, Part B: Magnetic Resonance
Engineering. |
|
Wu
B., Qu P., Wang C., Yuan J. and Shen G.G., Interconnecting L/C
Components for Decoupling and Its Application to the Low-field Open MRI
Array, Magnetic Resonance Ingineering. |
|
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.G., a Comparison Study On Blood And Tissue Nitric Oxide Concentration During Renal Ischemia-reperfusion Injury With Electron Paramagnetic Resonance Spectroscopy, Applied Magnetic Resonance. 2007. |
|
Researcher
: Shao W |
|
List of Research Outputs |
|
Yang D., Shao W., Shen D. and Li V.O.K., Hybrid busy tone and carrier sense-based MAC protocol in multi-hop and hoc networks, Int. J. Ad Hoc and Ubiquitous Computing. 2007, 2: 208-214. |
|
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 |
|
Diao Z., Shen D. and Li V.O.K., CPLD-PGPS Scheduler in Wireless OFDM Systems, IEEE Transactions on Wireless Communications. 2006, 5: 2923-2931. |
|
Yang D., Shao W., Shen D. and Li V.O.K., Hybrid busy tone and carrier sense-based MAC protocol in multi-hop and hoc networks, Int. J. Ad Hoc and Ubiquitous Computing. 2007, 2: 208-214. |
|
Yang
G., Shen D. and Li V.O.K., Adaptive video streaming over
multi-channel ad hoc networks, Proc. IEEE Globecom. |
|
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 |
|
Du C., Yuan J. and Shen G.G., Comarison of FP, VCSEL
and DFB Laser diode in optical transmission for MR RF coil array, Joint
Annual Meeting of ISMRM-ESMRMB. |
|
Du C..., Yuan J. and Shen G.G., Comarison of FP, VCSEL
and DFB Laser diode in optical transmission for MR RF coil array, Joint
Annual meeting of ISMRM-ESMRMB, Berlin, Germany. |
|
Pang
Y. and Shen G.G.,
Improving Excitation Accuracy by Genetic Algorithm Optimized RF pulse, Journal
of Magnetic Resonance. |
|
Pang Y. and Shen G.G., Improving Excitation And Inversion Accuracy By Optimized Rf Pulse Using Genetic Algorithm , Journal of Magnetic Resonance. Netherland, Elsevier Inc., 2007, 186: 86-93. |
|
Pang
Y., Liu Z.G., Wei J. and Shen G.G., Minimize the Power of
Variable-Rate Gradient Pulse, Joint Annual Meeting of ISMRM-ESMRMB. |
|
Pang
Y., Liu Z...G..., Wei J. and
Shen G.G., Minimize the Power
of Variable-Rate Gradient Pulse, Joint Annual Meeting of |
|
Qu
P., Luo J..., Zhang B..., Wang J... and Shen G.G., An Improved Iterative
SENSE Reconstruction Method, Concept in Magnetic Resonance, Part B:
Magnetic Resonance Engineering. |
|
Qu
P., Luo J., Zhang B., Wang J. and Shen
G.G., An Improved Iterative SENSE Reconstruction Method, Magnetic
Resonance Engineering. |
|
Qu
P., Wang C. and Shen G.G., Discrepancy-based
Adaptive Regularization For Grappa Reconstruction, Journal
of Magnetic Resonance Imaging. |
|
Qu P.,
Wu B., Wang C., Yuan J., Wei J., Pang Y. and Shen G.G., Interative Bac-Projection
Reconstruction for Radial SENSE, Joint Annual Meeting of ISMRM-ESMRMB,
Berlin, Germany . |
|
Qu
P., Wu B., Wang C., Yuan J., Wei J., Pang Y. and Shen G.G., Interative
Back-Projection Reconstruction for Radial SENSE, Joint Annual Meeting of
ISMRM-ESMRMB. |
|
Ren J., Fung P.C.W., Chang C., Shen G.G., Chan F.H.Y., Liu K.J. and Shen J.G., a Comparison Study On Blood And Tissue Nitric Oxide Concentration During Renal Ischemia-reperfusion Injury With Electron Paramagnetic Resonance Spectroscopy, Applied Magnetic Resonance. 2007. |
|
Wang
C., Pang Y., Wu B. and Shen G.G., Evaluation of Degenerated
Birdcage Coil for Parallel Imaging, Joint Annual Meeting of ISMRM-ESMRMB,
Berlin, Germany. |
|
Wang
C., Qu P., Yuan J. and Shen G.G., Evaluation of Degenerated
Birdcage Coil for Parallel Imagingp. ., Joint Annual Meeting of
ISMRM-ESMRMB. |
|
Wang
C., Qu P., Wu B. and Shen G.G., Potential Advantage of
Higher-order Modes of Birdcage Coil for Parallel Imaging, Journal of
Magnetic Resonance. |
|
Wang
C., Pang Y., Wu B. and Shen G.G., SAR and B1 Filed in Human
Head Model for Birdcage, TEM and Microstrip Coils at 7T , Joint Annual
Meeting of ISMRM-ESMRMB. |
|
Wang
C., Pang Y., Wu B. and Shen G.G., SAR and B1 Filed in Human
Head Model for Birdcage, TEM and Microstrip Coils at 7T, Joint Annual
Meeting of |
|
Wei J., Liu Z.G., Yuan J., Chai Z., Lian J. and Shen G.G., A Realization of Digital Wireless Transmission for MRI Signals Based on 802.11b, Journal of Magnetic Resonance. Netherland, Elsevier Inc., 2007, 186: 358-363. |
|
Wei
J., Liu Z.G., Yuan J., Pang Y. and Shen G.G., Digital Wireless
Transmission for MRI Signal, Joint Annual Meeting of ISMRM-ESMRMB. |
|
Wei
J., Liu G...Z..., Yuan J., Pang Y. and Shen G.G., Digital Wireless
Transmission for MRI Signal, Joint Annual Meetingf of |
|
Wu B., Zhang X.L., Qu P. and Shen G.G., Capacitively Decoupled Tunable Loop Microstrp (tlm) Array At 7t, Magnetic Resonance Imaging. Netherland, Wiley InterScience, 2007, V. 25 issue 3: 418-424. |
|
Wu
B., Pang Y., Wei J., Qu P., Wang C., Yuan J. and Shen G.G., Comparison Between
Broadband Decoupling Methods for Microstrip Array, Joint Annual Meeting of
ISMRM-ESMRMB. |
|
Wu
B., Pang Y., Wei J., Qu P., Wang C., Yuan J. and Shen G.G., Comparison Between
Broadband Decoupling Methods for Microstrip Array, Joint Annual Meeting of
ISMRM-ESMRMB, Berlin, Germany. |
|
Wu B., Zhang X.L., Qu P. and Shen G.G., Design of an Inductively Decoupled Microstrip Array at 9.4T, Journal of Magnetic Resonance. Netherland, Elsevier Inc., 2006, 182: 126-132. |
|
Wu
B., Qu P., Wang C., Yuan J. and Shen G.G., Interconnecting L/C
Components for Decoupling and Its Application to the Low-field Open MRI
Array, Concept in Magnetic Resonance, Part B: Magnetic Resonance
Engineering. |
|
Wu
B., Qu P., Wang C., Yuan J. and Shen G.G., Interconnecting L/C
Components for Decoupling and Its Application to the Low-field Open MRI
Array, Magnetic Resonance Ingineering. |
|
Yuan J., Wei J., Cai G..., Pang Y., Du C... and Shen G.G., A 4-Channel Optical Link Transmission for RF coil array at 1.5T, Joint Annual Meeting of ISMRM-ESMRMB, Berlin, Germany. Gernamy, 2007, 1036. |
|
Yuan
J., Wei J., Cao G., Pang Y., Du C. and Shen G.G., A 4-channel Optical Link
Transmission For Rf Coil Array At 1.5t, Joint Annual Meeting of
ISMRM-ESMRMB. |
|
Yuan
J., Wei J. and Shen G.G., A Direct Modulation
Optical Fiber Link For 0.3t Mri, Joint Annual Meeting of ISMRM-ESMRMB.
|
|
Yuan
J., Wei J. and Shen G.G., A direct modulation
optical fiber lind for 0.3T MRI, Joint Annual Meeting of ISMRM-ESMRMB,
Berlin, Germany. |
|
Yuan J. and Shen G.G., Gradient Coil Design Of Using Bi-2223 High Temperature Superconducting Tape For Gradient Coil In Magnetic Resonance Imaging, , , (2007) , Medical Engineering and Physics. Netherland, Wiley InterScience, 2007, 29: 442-448. |
|
Yuan
J., Wei J., Du C. and Shen G.G., Investigation Of |
|
Yuan
J., Rohan M...L... and Shen G.G.,
Investigation of Bi-2223 high temperature superconducting tape as the
material for gradient coil in MRI, Journal of Magnetic Resonance. |
|
Yuan
J., Wei J., Du C... and Shen G.G., Investigation of dynamic
range requirement for MRI signal transmission by optical fiber link, Joint
Annual Meeting of ISMRM-ESMRMB, Berlin, Germany. |
|
Researcher
: Shen Y |
|
List of Research Outputs |
|
Shen Y., Lam E.Y.M. and Wong N., Binary image restoration by signomial programming, OSA Topical Meeting in Signal Recovery and Synthesis. 2007. |
|
Shen Y., Lam E.Y.M. and Wong N., Binary image restoration using positive semidefinite programming, Optics Letters. 2007, 32: 121-123. |
|
Shen Y., Lam E.Y.M. and Wong N., Restoration of binary images using positive semidefinite programming, IEEE Tencon. 2006. |
|
Shen Y., Lam E.Y.M. and Wong N., Robust binary image deconvolution with positive semidefinite programming, IAENG International Journal of Applied Mathematics. 2007, 36: 41-48. |
|
Shen Y., Lam E.Y.M. and Wong N., Robust binary image deconvolution with positive semidefinite programming, Recent Advances in Engineering and Computer Science. Newswood, 2007, 159-166. |
|
Researcher
: Shi L |
|
List of Research Outputs |
|
Shi L., Zhou H., Tam P.T.C., Chang N., Du Z., Ni Y. and Wu F.F., Developing a Power System Dynamic Security Assessment System, Part II: structure and function design and technology used, International Conference on Power System Technology 2006. |
|
Researcher
: Suen TY |
|
List of Research Outputs |
|
Suen T.Y., Lam E.Y.M. and Wong K.K.Y., Curvature domain image
stitching, IEEE Int. Conf. on Sys. |
|
Suen T.Y., Lam E.Y.M. and Wong K.K.Y., Image mosaicking with optimized matching of global and local contents, IEEE Tencon. 2006. |
|
Suen T.Y., Lam E.Y.M. and Wong K.K.Y., Photographic stitching with optimized object and color matching based on image derivatives, Optics Express. 2007, 15: 7689-7696. |
|
Researcher
: Sum KW |
|
List of Research Outputs |
|
Sum K.W. and Cheung P.Y.S., A Fast Parametric Snake Model with Enhanced Concave Object Extraction Capability, Proceedings of the 2006 IEEE International Symposium on Signal Processing and Information Technology. IEEE, 2006, 454-457. |
|
Sum K.W. and Cheung P.Y.S., A Novel Active Contour Model Using Local and Global Statistics for Vessel Extraction, Proceedings of the 2006 IEEE International Conference on Engineering in Medicine and Biology. IEEE, 2006, 3126-3129. |
|
Sum K.W. and Cheung P.Y.S., Boundary vector field for parametric active contours, Pattern Recognition. Elservier, 2007, 40: 1635-1645. |
|
Researcher
: Sun F |
|
List of Research Outputs |
|
Sun F.,
Li V.O.K., Diao Z. and Xu Z.Y., A new
cross-layer designed multipolling MAC protocol over WLANs, Proc. IEEE
Wireless Communications and Networking Conference. |
|
Sun F.
and Li V.O.K., An adaptive TCP
algorithm to support handoffs in heterogeneous overlay networks, Proc.
IEEE TENCON. |
|
Sun F.,
Li V.O.K., Diao Z. and Xu Z.Y.,
Contention-based medium access control with physical layer assisted link
differentiation, Proc. IEEE ICC. |
|
Sun F.,
Li V.O.K., Diao Z. and Xu Z.Y., Medium access
control with physical layer assisted loss differentiation, Proc. IEEE
Globecom. |
|
Researcher
: Sze WF |
|
List of Research Outputs |
|
Sze W.F. and Hung Y.S., A New
Approach for Imposing the Singular Constraint of the Fundamental Matrix, 4th
Regional Inter-University Postgraduate Electrical and Electronic Engineering
Conference, Macao, 13-14 July 2006. |
|
Researcher
: Tam PTC |
|
List of Research Outputs |
|
Shi L., Zhou H., Tam P.T.C., Chang N., Du Z., Ni Y. and Wu F.F., Developing a Power System Dynamic Security Assessment System, Part II: structure and function design and technology used, International Conference on Power System Technology 2006. |
|
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. and Tam V.W.L., Localization in Sensor Networks with Limited Number of Anchors and Clustered Placement, IEEE Wireless Communications & Networking Conference (WCNC). 2007. |
|
Choy W.C.H., Tam V.W.L., Yu B.T.Y. and Leung L.M.L., Absolute Optical Properties of Organic Materials, Proceedings of the Sixth International Conference on Electroluminescence of Molecular Materials and Related Phenomena (ICEL-6). 2006. |
|
Choy W.C.H., Tam V.W.L., Yu Z.Y. and Leung M.L., Absolute Optical Properties of Organic Materials, The 6th International Conference on Electroluminescence of Molecular Materials and Relative Phenomena. 2006. |
|
Tam V.W.L., Cheng K.Y. and Wong Lui K.S., A Descend-Based Evolutionary Approach to Enhance Position Estimation in Wireless Sensor Networks, Proceedings of the IEEE 18th International Conference on Tools with Artificial Intelligence (ICTAI’06). the IEEE Computer Society, 2006. |
|
Tam V.W.L., Ma K.T. and Wong Lui K.S., An Adaptive Framework with Multiple Schemes for Event and Query Distribution in Wireless Sensor Networks, Proceedings of IEEE Consumer Communications and Networking Conference (CCNC’07). 2007. |
|
Tam V.W.L. and Kwan A.C.M., Intelligent Visualization Techniques for Reusable Learning Objects to Facilitate An Online Learning Environment, In: P. Tsang, R. Kwan and R. Fox, Enhancing Learning Through Technology. World Scientific, 2006, 199 - 208. |
|
Tam V.W.L., Kwan A.C.M. and Mak W.K., Intelligent Visualization Techniques to Improve Online Learning Environment Facilitated by Learning Objects, Proceedings of the International Conference on ICT in Teaching and Learning (ICT 2006). 2006. |
|
Tam
V.W.L., Kwan
A.C.M. and Sugiyama K., Poster Presentation: Adapting the Force-Scan
Algorithm to Visualize Learning Objects and Their Relationship in an Online
Learning Environment , |
|
Tam
V.W.L., Cheung
S.W. and Wong Lui K.S., TD-SCDMA
Application Award, |
|
Tam V.W.L., Cheng K.Y. and Wong Lui K.S., Using Micro-Genetic Algorithms to Improve Localization in Wireless Sensor Networks , Journal of Communications. The Academy Publisher, 2006, 1: 1 - 10. |
|
Researcher
: Tan Z |
|
List of Research Outputs |
|
Tan Z., He X. and Yung N.H.C., A novel merging criterion incorporating boundary smoothness and region homogeneity for image segmentation, Advances in Image and Video Technology , Lecture Notes in Computer Science. Berlin/Beidelberg, Springer, 2006, 4319/2006: 9. |
|
Tan Z., He X. and Yung N.H.C., A novel merging criterion incorporating boundary smoothness and region homogeneity for image segmentation, Proceedings of IEEE Pacific-Rim Symposium on Image and Video Technology. Piscataway/USA, IEEE, 2006, 10. |
|
Researcher
: Tang WM |
|
List of Research Outputs |
|
Tang W.M., Lai P.T., Leung C.H. and Xu J.P., A comparison of MISiC Schottky-diode hydrogen sensors made by NO, N2O or NH3 nitridations, IEEE Trans. Electron Devices. 2006, ED-53: 2378-2383. |
|
Researcher
: Ting KH |
|
List of Research Outputs |
|
Lam H.Y., Ting K.H., Lee W.K. and Fung S.K., An Analytical Understanding on Voltage-Current Curve of Electrical Load, of International Conference on Electrical Engineering. 2006, MS1-05 007-000283. |
|
Ting K.H., Fung P.C.W., Chang C. and Chan F.H.Y., Automatic correction of artifact from single-trial event related potentials by blind source separation using second order statistics only, Medical Engineering & Physics. 2006, 28: 780-794. |
|
Researcher
: Ting KH |
|
List of Research Outputs |
|
Lam H.Y., Ting K.H., Lee W.K. and Fung S.K., An Analytical Understanding on Voltage-Current Curve of Electrical Load, of International Conference on Electrical Engineering. 2006, MS1-05 007-000283. |
|
Ting K.H., Fung P.C.W., Chang C. and Chan F.H.Y., Automatic correction of artifact from single-trial event related potentials by blind source separation using second order statistics only, Medical Engineering & Physics. 2006, 28: 780-794. |
|
Researcher
: Toh CK |
|
List of Research Outputs |
|
Toh C.K., Guichal G., Kim D. and Li V.O.K., Service location protocols for mobile wireless and hoc networks, Int. J. Ad Hoc and Ubiquitous Computing. 2007, 2: 250-262. |
|
Researcher
: Tse KW |
|
List of Research Outputs |
|
Chan S.C., Tsui K.M. and Tse K.W., Design of constrained causal stable IIR filters using a new second order cone programming based model reduction, IEEE Transactions Circuits and Systems II. 2007, vol. 54, no. 2: pp. 107-111. |
|
Researcher
: Tsui KM |
|
List of Research Outputs |
|
Chan S.C., Tsui K.M. and Zhao S., A Methodology for Automatic Hardware Synthesis of Multiplier-less Digital Filters with Prescribed Output Accuracy, Proc. Asia Pacific Conference on Circuits and Systems (APCCAS'06). 2006, 61-64. |
|
Chan S.C., Tsui K.M. and Kwan H.K., A New Method for Designing Constrained Causal Stable IIR Variable Digital Filters, Proc. Asia Pacific Conference on Circuits and Systems (APCCAS'06). 2006, 65-68. |
|
Chan S.C., Tsui K.M. and Tse K.W., Design of constrained causal stable IIR filters using a new second order cone programming based model reduction, IEEE Transactions Circuits and Systems II. 2007, vol. 54, no. 2: pp. 107-111. |
|
Chan S.C., Tsui K.M., Yeung K.S. and Yuk T.T.I., Design, implementation and complexity optimization of a new digital IF for software radio receivers, IEEE Transactions Circuits and Systems I. 2007, vol. 54, no. 2: pp. 351-366. |
|
Chan S.C. and Tsui K.M., Error analysis and implementation of the multiplier-less FFT-like transformation (ML-FFT) and related sinusoidal transformations, Journal of VLSI Signal Processing Systems. 2006, vol. 44, issue 12: pp. 97-115. |
|
Chan S.C., Zhang Z. and Tsui K.M., Minimum Variance Spectral Estimation-Based Time Frequency Analysis for Nonstationary Time-Series, Proc. IEEE Int'l Symposium on Ciruits and Systems (ISCAS'2007). 2007, 1815-1818. |
|
Chan S.C. and Tsui K.M., The multi-plet two-channel perfect reconstruction filter banks, IEEE Transactions Circuits and Systems I. IEEE, 2006, vol. 53, no. 12: pp.2804-2817. |
|
Chan
S.C. and Tsui K.M.,
Wordlength optimization of linear time invariant systems with multiple
outputs using geometric programming, IEEE Transactions Circuits and |
|
Tsui K.M., Zhang Z., Chan S.C., Hu Y. and Luk K.D.K., On the Time-frequency Analysis of Trunk Muscles During Sudden Release of Load, Proc. IEEE Int'l Symposium on Ciruits and Systems (ISCAS'2007). 2007, 1309-1312. |
|
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 C |
|
List of Research Outputs |
|
Qu
P., Wang C. and Shen G.G., Discrepancy-based Adaptive
Regularization For Grappa Reconstruction, Journal
of Magnetic Resonance Imaging. |
|
Qu P.,
Wu B., Wang C., Yuan J., Wei J., Pang Y. and Shen G.G., Interative Bac-Projection
Reconstruction for Radial SENSE, Joint Annual Meeting of ISMRM-ESMRMB,
Berlin, Germany . |
|
Qu
P., Wu B., Wang C., Yuan J., Wei J., Pang Y. and Shen G.G., Interative Back-Projection
Reconstruction for Radial SENSE, Joint Annual Meeting of ISMRM-ESMRMB.
|
|
Wang C.,
Pang Y., Wu B. and Shen G.G., Evaluation of Degenerated
Birdcage Coil for Parallel Imaging, Joint Annual Meeting of ISMRM-ESMRMB,
Berlin, Germany. |
|
Wang C.,
Qu P., Yuan J. and Shen G.G., Evaluation of Degenerated
Birdcage Coil for Parallel Imagingp. ., Joint Annual Meeting of
ISMRM-ESMRMB. |
|
Wang C.,
Qu P., Wu B. and Shen G.G., Potential Advantage of
Higher-order Modes of Birdcage Coil for Parallel Imaging, Journal of
Magnetic Resonance. |
|
Wang C.,
Pang Y., Wu B. and Shen G.G., SAR and B1 Filed in Human
Head Model for Birdcage, TEM and Microstrip Coils at 7T , Joint Annual
Meeting of ISMRM-ESMRMB. |
|
Wang C.,
Pang Y., Wu B. and Shen G.G., SAR and B1 Filed in Human
Head Model for Birdcage, TEM and Microstrip Coils at 7T, Joint Annual
Meeting of |
|
Wu
B., Pang Y., Wei J., Qu P., Wang C., Yuan J. and Shen G.G., Comparison Between Broadband
Decoupling Methods for Microstrip Array, Joint Annual Meeting of
ISMRM-ESMRMB. |
|
Wu
B., Pang Y., Wei J., Qu P., Wang C., Yuan J. and Shen G.G., Comparison Between Broadband
Decoupling Methods for Microstrip Array, Joint Annual Meeting of
ISMRM-ESMRMB, Berlin, Germany. |
|
Wu
B., Qu P., Wang C., Yuan J. and Shen G.G., Interconnecting L/C
Components for Decoupling and Its Application to the Low-field Open MRI
Array, Concept in Magnetic Resonance, Part B: Magnetic Resonance
Engineering. |
|
Wu
B., Qu P., Wang C., Yuan J. and Shen G.G., Interconnecting L/C
Components for Decoupling and Its Application to the Low-field Open MRI
Array, Magnetic Resonance Ingineering. |
|
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., Wang J. and Kwok Y.K., A New Cross Layer Approach to QoS-Aware Proportional Fairness Packet Scheduling in the Downlink of OFDM Wireless Systems, Proceedings of IEEE International Conference on Communications (ICC'2007), Glasgow, Scotland. 2007. |
|
Kong Z., Kwok Y.K. and Wang J., On Game Theoretic Rate-Maximizing Packet Scheduling in Non-Cooperative Wireless Networks, Proceedings of the IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks (WoWMoM'2007), Helsinki, Finland. 2007. |
|
Liu Y., Kwok Y.K. and Wang J., A New Self Organized Clustering Scheme for Hierarchical TH-PPM UWB Wireless Ad Hoc Networks, Proceedings of the 17th Annual IEEE International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC'2006), Helsinki, Finland. 2006. |
|
Liu Y., Kwok Y.K. and Wang J., An Adaptive Packet Scheduling Algorithm for Efficient Downlink Bandwidth Allocation in UWB Based Wireless Infrastructure Networks, Computer Communications. 2007, 30: 2087-2095. |
|
Liu Y., Kwok Y.K. and Wang J., Downlink TCP Performance Under Cross Layer Rate and Power Allocation in Infrastructure TH-PPM UWB Networks, Proceedings of IEEE International Conference on Communications (ICC'2007), Glasgow, Scotland. 2007. |
|
Zhou
Y., Wang J. and Ng T.S., A Novel Code Assignment Scheme
for Broadband OFCDM Systems, TENCON 2006. 2006 IEEE Region 10 Conference.
|
|
Researcher
: Wang X |
|
List of Research Outputs |
|
Wang X.
and Yeung L.K., Load Balanced
Two-Stage Switches Using Arrayed Waveguide Grating Routers, HPSR 2007.
|
|
Researcher
: Wang Z |
|
List of Research Outputs |
|
Wang Z., Chau K.T. and Liu C., Improvement of electromagnetic compatibility of induction motor drives using optimized chaotic PWM, IEEE Joint Magnetism & Magnetic Materials - International Magnetics Conference. 2007, CD-ROM. |
|
Wang Z., Chau K.T. and Liu C., Improvement of electromagnetic compatibility of motor drives using chaotic PWM, IEEE Transactions on Magnetics. 2007, 43(6): 2612-2614. |
|
Wang Z. and Chau K.T., Stabilization of chaotic vibration in automobile wiper systems, Asia International Symposium on Mechatronics. 2006, CD-ROM. |
|
Researcher
: Wei J |
|
List of Research Outputs |
|
Pang
Y., Liu Z.G., Wei J. and
Shen G.G., Minimize the Power of
Variable-Rate Gradient Pulse, Joint Annual Meeting of ISMRM-ESMRMB. |
|
Pang
Y., Liu Z...G..., Wei J.
and Shen G.G., Minimize the Power of
Variable-Rate Gradient Pulse, Joint Annual Meeting of |
|
Qu P.,
Wu B., Wang C., Yuan J., Wei J., Pang Y. and Shen G.G., Interative Bac-Projection
Reconstruction for Radial SENSE, Joint Annual Meeting of ISMRM-ESMRMB,
Berlin, Germany . |
|
Qu
P., Wu B., Wang C., Yuan J., Wei J., Pang Y. and Shen G.G., Interative Back-Projection
Reconstruction for Radial SENSE, Joint Annual Meeting of ISMRM-ESMRMB.
|
|
Wei J., Liu Z.G., Yuan J., Chai Z., Lian J. and Shen G.G., A Realization of Digital Wireless Transmission for MRI Signals Based on 802.11b, Journal of Magnetic Resonance. Netherland, Elsevier Inc., 2007, 186: 358-363. |
|
Wei J.,
Liu Z.G., Yuan J., Pang Y. and Shen G.G., Digital Wireless Transmission
for MRI Signal, Joint Annual Meeting of ISMRM-ESMRMB. |
|
Wei J.,
Liu G...Z..., Yuan J., Pang Y. and Shen G.G., Digital Wireless Transmission
for MRI Signal, Joint Annual Meetingf of |
|
Wu
B., Pang Y., Wei J., Qu P., Wang C., Yuan J. and Shen G.G., Comparison Between Broadband
Decoupling Methods for Microstrip Array, Joint Annual Meeting of
ISMRM-ESMRMB. |
|
Wu
B., Pang Y., Wei J., Qu P., Wang C., Yuan J. and Shen G.G., Comparison Between Broadband
Decoupling Methods for Microstrip Array, Joint Annual Meeting of
ISMRM-ESMRMB, Berlin, Germany. |
|
Yuan J., Wei J., Cai G..., Pang Y., Du C... and Shen G.G., A 4-Channel Optical Link Transmission for RF coil array at 1.5T, Joint Annual Meeting of ISMRM-ESMRMB, Berlin, Germany. Gernamy, 2007, 1036. |
|
Yuan
J., Wei J., Cao G., Pang Y., Du C. and Shen G.G., A 4-channel Optical Link
Transmission For Rf Coil Array At 1.5t, Joint Annual Meeting of
ISMRM-ESMRMB. |
|
Yuan
J., Wei J. and Shen G.G., A Direct Modulation Optical
Fiber Link For 0.3t Mri, Joint Annual Meeting of ISMRM-ESMRMB. |
|
Yuan
J., Wei J. and Shen G.G., A direct modulation optical
fiber lind for 0.3T MRI, Joint Annual Meeting of ISMRM-ESMRMB, Berlin,
Germany. |
|
Yuan
J., Wei J., Du C. and
Shen G.G., Investigation Of |
|
Yuan
J., Wei J., Du C...
and Shen G.G., Investigation of
dynamic range requirement for MRI signal transmission by optical fiber link, Joint
Annual Meeting of ISMRM-ESMRMB, Berlin, Germany. |
|
Researcher
: Wen F |
|
Project Title: |
Generation capacity adequacy in deregulated electricity markets |
|
Investigator(s): |
Wen F, Wu FF, Ni Y |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Competitive Earmarked Research Grants (CERG) |
|
Start Date: |
09/2004 |
|
Completion Date: |
08/2006 |
|
Abstract: |
|
To identify major factors having impacts on generation investment incentives in several popular electricity market models and structures around the globe; to investigate the effects of different settings of price caps for generation companies in spot electricity markets on generation investment incentives; to investigate the effects of different schemes of capacity payments on generation investment incentives; to study the effects of various installed capacity market designs on generation investment incentives; to develop an appropriate method for price cap setting for generation companies in electricity spot markets so as to well balance the market power abuse and generation investment incentive; to make suggestions on designs of workable and competitive electricity markets. |
|
Researcher
: Wong KKY |
|
Project Title: |
Widely tunable parametric laser source for biophotonic applications |
|
Investigator(s): |
Wong KKY |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Seed Funding Programme for Basic Research |
|
Start Date: |
01/2005 |
|
Completion Date: |
12/2006 |
|
Abstract: |
|
To simulate a widely tunable laser source generated by optical parametric amplifier (OPA) and optical parametric oscillator (OPO) using fiber-based gain medium; to demonstrate experimentally such kind of widely tunable laser sources and characterize their performance (e.g. wavelength tuning range, average and peak powers, linewidth etc.); to investigate the feasibility of deploying such kind of devices in some specific application areas such as dermatology, opthalmology etc. |
|
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., Kwok C.H.
and Wong K.K.Y., All-Optical
Packet Switching by Pulsed-Pump Wavelength Exchange in a Highly Nonlinear
Dispersion-Shifted Fiber, Opt. Fiber Comm. Conf.. |
|
Cheung
K.Y.H., Chui P.C. and Wong K.K.Y., Counter-pumped
Raman-mediated fiber optical parametric amplifiers, Optoelectronics and
Comm. Conf.. |
|
Cheung
K.Y.H., Fung W.L., Lai M.F., Chui P.C. and Wong K.K.Y., Optical Pulse
Generation Using Two-Stage Compression Based on Optical Parametric Amplifier,
Conf. on Lasers & Electro-Optics. |
|
Choi K.S., Lam E.Y.M. and Wong K.K.Y., Automatic source camera identification using the intrinsic lens radial distortion, Optics Express. 2006, 14: 11551-11565. |
|
Choi
K.S., Lam E.Y.M. and Wong K.K.Y., Feature selection in
source camera identification, IEEE Int. Conf. on Syst., Man. and
Cybernetics. |
|
Choi K.S., Lam E.Y.M. and Wong K.K.Y., Source camera identification by JPEG compression statistics for image forensics, IEEE Tencon. 2006. |
|
Fung
W.L. and Wong K.K.Y.,
Investigation of Raman effect on wavelength exchange, Optoelectronics and
Comm. Conf.. |
|
Fung
W.L., Cheung K.Y.H. and Wong K.K.Y., Wavelength Exchange
with Enhanced Extinction Ratio in Highly Nonlinear Dispersion-Shifted Fiber, Conf.
on Lasers & Electro-Optics. |
|
Fung W.L., Cheung K.Y.H., Kuo P.P., Kwok C.H. and Wong K.K.Y., Wavelength exchange using two pumps in anomalous regime, European Conf. on Optical Communications. 2006. |
|
Kalogerakis G., Shimizu K., |
|
Kalogerakis G., |
|
Kuo P.P. and Wong K.K.Y., Optimization for fiber
wavelength exchange with zero-dispersion wavelength fluctuations, Optoelectronics
and Comm. Conf.. |
|
Kuo
P.P., Chui P.C. and Wong K.K.Y., Suppression of WDM
Signal Crosstalk in Fiber Optical Parametric Amplifier by Using RZ-DPSK
Modulation Format, Opt. Fiber Comm. Conf.. |
|
Kuo
P.P., Chui P.C. and Wong K.K.Y., Tunable Repetition-rate
Ultrawideband Monocycle Pulse Generation by using Optical Parametric
Amplifier, Conf. on Lasers & Electro-Optics. |
|
Kwok C.H., Cheung K.Y.H., Fung W.L., Kuo P.P., Wong K.K.Y. and Lin C., First
Demonstration of Pulsed Pumping Wavelength Exchange, Optoelectronics and
Comm. Conf.. |
|
Suen
T.Y., Lam E.Y.M. and Wong K.K.Y., Curvature domain image
stitching, IEEE Int. Conf. on Sys. |
|
Suen T.Y., Lam E.Y.M. and Wong K.K.Y., Image mosaicking with optimized matching of global and local contents, IEEE Tencon. 2006. |
|
Suen T.Y., Lam E.Y.M. and Wong K.K.Y., Photographic stitching with optimized object and color matching based on image derivatives, Optics Express. 2007, 15: 7689-7696. |
|
Tse P.K.W. and Wong K.K.Y., Enhanced method for
zero-dispersion wavelength mapping using two-pump optical parametric
amplifier, Optoelectronics and Comm. Conf.. |
|
Wong
K.K.Y., Lui G.W., Lau K.C., Wai P.K.A. and
Chen L.K., All-Optical Wavelength Conversion and Multicasting by Cross-Gain
Modulation in a Single-Stage Fiber Optical Parametric Amplifier, Opt.
Fiber Comm. Conf.. |
|
Wong K.K.Y., Lui G.W. and Chen L.K., Experimental study of the WDM signal crosstalk in two-pump fiber optical parametric amplifiers, Optics Communications. 2007, 270: 429-432. |
|
Wong K.K.Y., Lui G.W. and Chen L.K., Polarization-interleaved WDM signals in a fiber optical parametric amplifier with orthogonal pumps, OSA Opt. Express. 2007, 15: 56-61. |
|
Wong
K.K.Y., Marhic M.E., Kalogerakis G. and
Kazovsky L.G., Recent Advances in the Fiber Optical Parametric Amplifiers, Ginzton
Laboratory, |
|
Wong
K.K.Y., Kuo P.P., |
|
Wong
K.K.Y., |
|
Wong
K.K.Y., |
|
Wong K.K.Y., Lui G.W. and Chen L.K., Simultaneous all-optical inverted and non-inverted wavelength conversion using a single-stage fiber optical parametric amplifier, IEEE Photon. Technol. Lett.. 2006, 18, no. 13: 1442-1444. |
|
Wong N. and Wong K.K.Y., Gain Bandwidth Optimization in Two-Pump Fiber Optical Parametric Amplifiers Under Bounded Zero-Dispersion Wavelength Fluctuations, Optics Communications. 2007, 272: 514-520. |
|
Researcher
: Wong N |
|
Project Title: |
Design and implementation of high-speed, low-power, adaptive multiplierless filters |
|
Investigator(s): |
Wong N |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Seed Funding for New Staff |
|
Start Date: |
09/2004 |
|
Completion Date: |
12/2006 |
|
Abstract: |
|
To develop algorithms for adaptively updating and optimizing multiplierless filter coefficients subject to power, latency, and frequency response constraints; to integrate engineering applications; to carry out hardware prototyping, verification, and characterization. |
|
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. |
|
List of Research Outputs |
|
Chen Q. and Wong N., A stochastic integral equation method for resistance extraction of conductors with random rough surfaces, Proc. Intl. Symp. on Intelligent Signal Processing and Communication Systems (ISPACS). 2006, 411-414. |
|
Chen Q. and Wong N., Investigation of random rough surface effects in interconnect resistance extraction utilizing effective conductivity, Proc. IEEE Region 10 Conf. (TENCON). 2006. |
|
Cheung C.M., Lei C.U. and Wong N., Design of 2D linear-phase IIR filters via Schur decomposition and discrete-time vector fitting, Proc. IEEE Conf. Industrial Electronics and Applications (ICIEA). 2007, 2403-2406. |
|
Cheung C.M., Lei C.U. and Wong N., Novel 2D linear-phase IIR filter design and application in noise removal, Proc. IAENG International Conference on Electrical Engineering (ICEE’07). 2007, 1793-1796. |
|
Cheung W.T. and Wong N., Optimized RF CMOS low noise amplifier design via geometric programming, Proc. Intl. Symp. on Intelligent Signal Processing and Communication Systems (ISPACS). 2006, 423-426. |
|
Cheung W.T. and Wong N., Power optimization in a repeater-inserted interconnect via geometric programming, Proc. International Symposium on Low Power Electronics and Design (ISLPED). 2006, 226-231. |
|
Chu C.K. and Wong N., Efficient positive real balanced truncation of SISO systems via cross-Riccati equations, Proc. Intl. Symp. on Intelligent Signal Processing and Communication Systems (ISPACS). 2006, 403-406. |
|
Chu C.K. and Wong N., Model order reduction of frequency-dependent interconnect models via linear fractional transformation techniques, Proc. Intl. Symp. on Intelligent Signal Processing and Communication Systems (ISPACS). 2006, 407-410. |
|
Ho A.Y.H., Lei C.U. and Wong N., A common subexpression sharing approach for multiplierless synthesis of multiple constant multiplications, Proc. IAENG International Conference on Electrical Engineering (ICEE’07) (Best Student Paper Award). 2007, 1636-1639. |
|
Kwan H.K., Ho A.Y.H., Wong N. and Ho K.L., Designing globally optimal delta-sigma modulator topologies via signomial programming, Proc. Intl. Symp. VLSI Design, Automation and Test (VLSI-DAT). 2007, 53-56. |
|
Lei C.U. and Wong N., Multiplierless polynomial-operator-based IIR filters for efficient VLSI implementation, Proc. IEEE Region 10 Conf. (TENCON). 2006. |
|
Lui S.H. and Wong N., Design of nested transconductance-capacitance compensation amplifier via nonconvex polynomial optimization, Proc. Intl. Symp. on Intelligent Signal Processing and Communication Systems (ISPACS). 2006, 542-545. |
|
Lui S.H. and Wong N., Systematic power minimization in multibit delta-sigma analog-to-digital converters, Proc. IEEE Region 10 Conf. (TENCON). 2006. |
|
Ma S., Wong N. and Ng T.S., Signal detection for MIMO-OFDM systems with time offsets, Proc. Global Telecommunications Conference (GLOBECOM). 2006, 1-5. |
|
Ng C.W., Wong N. and Ng T.S., Efficient FPGA Implementation of Bit-Stream Multipliers, Electronics Letters. 2007, 43: 496-497. |
|
Ng D.C.W., Wong W.Y.T., Wong N., Wan K.W.H. and Kwong D.K.K., An efficient transfer-function-based approach for the fast tuning and design of DC-DC converters, Proc. IEEE Conf. Industrial Electronics and Applications (ICIEA). 2007, 682-686. |
|
Shen Y., Lam E.Y.M. and Wong N., Binary image restoration by signomial programming, OSA Topical Meeting in Signal Recovery and Synthesis. 2007. |
|
Shen Y., Lam E.Y.M. and Wong N., Binary image restoration using positive semidefinite programming, Optics Letters. 2007, 32: 121-123. |
|
Shen Y., Lam E.Y.M. and Wong N., Restoration of binary images using positive semidefinite programming, IEEE Tencon. 2006. |
|
Shen Y., Lam E.Y.M. and Wong N., Robust binary image deconvolution with positive semidefinite programming, IAENG International Journal of Applied Mathematics. 2007, 36: 41-48. |
|
Shen Y., Lam E.Y.M. and Wong N., Robust binary image deconvolution with positive semidefinite programming, Recent Advances in Engineering and Computer Science. Newswood, 2007, 159-166. |
|
Wong N. and Chu C.K., A Fast Passivity Test for Descriptor Systems Via Structure-Preserving Transformations of Skew-Hamiltonian/Hamiltonian Matrix Pencils, Proc. Design Automation Conference (DAC) 2006. 261-266. |
|
Wong N., Best Student Paper Award, IAENG International Conference on Electrical Engineering. 2007. |
|
Wong N. and Lei C.U., FIR filter approximation by IIR filters based on discrete-time vector fitting, Proc. Int. Symp. Circuits and Systems (ISCAS). 2007, 2343-2346. |
|
Wong
N., Fast positive-real balanced truncation of
symmetric systems using cross Riccati equations, Proc. Design, Automation
and Test in |
|
Wong N. and Wong K.K.Y., Gain Bandwidth Optimization in Two-Pump Fiber Optical Parametric Amplifiers Under Bounded Zero-Dispersion Wavelength Fluctuations, Optics Communications. 2007, 272: 514-520. |
|
Wong N. and Balakrishnan V., Multi-Shift Quadratic Alternating Direction Implicit Iteration for High-Speed Positive-Real Balanced Truncation, Proc. Design Automation Conference (DAC) 2006. 257-260. |
|
Wong N., Balakrishnan V., Koh C.K. and Ng T.S., Two Algorithms for Fast and Accurate Passivity-Preserving Model Order Reduction, IEEE Trans. on Computer Aided Design of Integrated Circuits and Systems. 2006, 25: 2062-2075. |
|
Researcher
: Wong YS |
|
List of Research Outputs |
|
Chan C.C., Chau K.T., Cheng M., Cui S., Masrur A., Mi C., Minami S. and Wong Y.S., Environmental Excellence in Transportation Award for Education, Training and Public Awareness 2006, International Society of Automotive Engineers (SAE). 2007. |
|
Wong Y.S., Chau K.T., Chan C.C. and Ching T.W., Battery evaluation and sizing for plug-in hybrid electric vehicles, International Electric Vehicle Symposium. 2006, CD-ROM. |
|
Wong Y.S., Chau K.T. and Chan C.C., |
|
Researcher
: Wong |
|
Project Title: |
Secure routing protocols for wireless networks |
|
Investigator(s): |
Wong |
|
Department: |
Electrical & Electronic Engg |
|
Source(s) of Funding: |
Seed Funding for New Staff |
|
Start Date: |
02/2003 |
|
Completion Date: |
11/2006 |
|
Abstract: |
|
To study the security weaknesses of the existing wireless network routing protocols and propose security enhancements to these protocols. |
|
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 |
|
Chan J., Li V.O.K. and Wong Lui K.S., Performance comparison of scheduling algorithms for peer-to-peer collaborative file distribution, IEEE Journal on Selected Areas in Comm., Special Issue on Peer-to-Peer Communications and Applications. 2007, 25: 146-154. |
|
Chan S.K.J., Li V.O.K. and Wong Lui K.S., Performance Comparison of Scheduling Algorithms for Peer-to-Peer Collaborative File Distribution, IEEE Journal on Selected Areas in Communications (JSAC). 2007, 25: 146 - 154. |
|
Cheng K.Y., Wong Lui K.S. and Tam V.W.L., Localization in Sensor Networks with Limited Number of Anchors and Clustered Placement, IEEE Wireless Communications & Networking Conference (WCNC). 2007. |
|
Chiu
H.S., Yeung L.K. and Wong Lui K.S., J-CAR: an Efficient
Channel Assignment and Routing Protocol for Multi-channel Multi-interface |
|
Chow K.Y., Wong Lui K.S. and Lam E.Y.M., Achieving 360 degree angle coverage with minimum transmission cost in visual sensor networks, IEEE Wireless Communications and Networking Conference. 2007. |
|
Chow K.Y., Wong Lui K.S. and Lam E.Y.M., Efficient on-demand image transmission in visual sensor networks, EURASIP Journal on Advances in Signal Processing. 2007, 2007: 95076. |
|
Chow K.Y., Wong Lui K.S. and Lam E.Y.M., Efficient selective image transmission in visual sensor networks, IEEE 65th Vehicular Technology Conference. 2007. |
|
Chow K.Y., Wong Lui K.S. and Lam E.Y.M., Maximizing angle coverage in visual sensor networks, IEEE International Conference on Communications. 2007. |
|
Hung K.S., Wong Lui K.S. and Kwok Y.K., A Trust-Based Geographical Routing Scheme in Sensor Networks, IEEE Wireless Communications & Networking Conference (WCNC). 2007. |
|
Li S.S. and Wong Lui K.S., 2-line Segment Topology Aggregation Mechanism for QoS Routing, IEEE Tencon. 2006. |
|
Tam V.W.L., Cheng K.Y. and Wong Lui K.S., A Descend-Based Evolutionary Approach to Enhance Position Estimation in Wireless Sensor Networks, Proceedings of the IEEE 18th International Conference on Tools with Artificial Intelligence (ICTAI’06). the IEEE Computer Society, 2006. |
|
Tam V.W.L., Ma K.T. and Wong Lui K.S., An Adaptive Framework with Multiple Schemes for Event and Query Distribution in Wireless Sensor Networks, Proceedings of IEEE Consumer Communications and Networking Conference (CCNC’07). 2007. |
|
Tam
V.W.L., Cheung S.W. and Wong Lui K.S., TD-SCDMA Application
Award, |
|
Tam V.W.L., Cheng K.Y. and Wong Lui K.S., Using Micro-Genetic Algorithms to Improve Localization in Wireless Sensor Networks , Journal of Communications. The Academy Publisher, 2006, 1: 1 - 10. |
|
Uludag S., Wong Lui K.S. and Uludag Z., Probabilistic Path Selection under Inaccuracy via Augmented Shortest Path Algorithms, IEEE Globecom. 2006. |
|
Wong Lui K.S., Cisco Collaborative Research Initiative Award, Cisco Systems Inc.. 2007. |
|
Wu B.,
Yeung L.K., Wong Lui K.S. and Xu S., A new ILP-based p-cycle
construction algorithnm without candidate cycle enumeration, IEEE ICC 2007. |
|
Researcher
: Wu B |
|
List of Research Outputs |
|
Qu P.,
Wu B., Wang C., Yuan J., Wei J., Pang Y. and Shen G.G., Interative Bac-Projection
Reconstruction for Radial SENSE, Joint Annual Meeting of ISMRM-ESMRMB,
Berlin, Germany . |
|
Qu
P., Wu B., Wang C., Yuan J., Wei J., Pang Y. and Shen G.G., Interative Back-Projection
Reconstruction for Radial SENSE, Joint Annual Meeting of ISMRM-ESMRMB.
|
|
Wang
C., Pang Y., Wu B. and Shen G.G., Evaluation of Degenerated
Birdcage Coil for Parallel Imaging, Joint Annual Meeting of ISMRM-ESMRMB,
Berlin, Germany. |
|
Wang
C., Qu P., Wu B. and Shen G.G., Potential Advantage of
Higher-order Modes of Birdcage Coil for Parallel Imaging, Journal of
Magnetic Resonance. |
|
Wang
C., Pang Y., Wu B. and Shen G.G., SAR and B1 Filed in Human
Head Model for Birdcage, TEM and Microstrip Coils at 7T , Joint Annual
Meeting of ISMRM-ESMRMB. |
|
Wang
C., Pang Y., Wu B. and Shen G.G., SAR and B1 Filed in Human
Head Model for Birdcage, TEM and Microstrip Coils at 7T, Joint Annual
Meeting of |
|
Wu
B., Yeung
L.K., Wong Lui K.S. and Xu S., A new ILP-based p-cycle
construction algorithnm without candidate cycle enumeration, IEEE ICC 2007. |
|
Wu B., Zhang X.L., Qu P. and Shen G.G., Capacitively Decoupled Tunable Loop Microstrp (tlm) Array At 7t, Magnetic Resonance Imaging. Netherland, Wiley InterScience, 2007, V. 25 issue 3: 418-424. |
|
Wu B., Pang Y., Wei J., Qu P., Wang C., Yuan J. and Shen G.G., Comparison Between Broadband
Decoupling Methods for Microstrip Array, Joint Annual Meeting of
ISMRM-ESMRMB. |
|
Wu B., Pang Y., Wei J., Qu P., Wang C., Yuan J. and Shen G.G., Comparison Between Broadband
Decoupling Methods for Microstrip Array, Joint Annual Meeting of
ISMRM-ESMRMB, Berlin, Germany. |
|
Wu B., Zhang X.L., Qu P. and Shen G.G., Design of an Inductively Decoupled Microstrip Array at 9.4T, Journal of Magnetic Resonance. Netherland, Elsevier Inc., 2006, 182: 126-132. |
|
Wu
B. and Yeung
L.K., Improving Scheduling Efficiency for High-Speed Routers with Optical
Switch Fabrics, GLOBECOM 2006. |
|
Wu B., Qu P., Wang C., Yuan J. and Shen G.G., Interconnecting L/C
Components for Decoupling and Its Application to the Low-field Open MRI
Array, Concept in Magnetic Resonance, Part B: Magnetic Resonance
Engineering. |
|
Wu B., Qu P., Wang C., Yuan J. and Shen G.G., Interconnecting L/C
Components for Decoupling and Its Application to the Low-field Open MRI
Array, Magnetic Resonance Ingineering. |
|
Wu
B. and Yeung
L.K., Light-Trail Assignment in WDM Optical Networks, GLOBECOM 2006.
|
|
Wu
B. and Yeung
L.K., M2-CYCLE: an Optical Layer Algorithm for Fast Link Failure
Detection in All-Optical Mesh Networks, GLOBECOM 2006. |
|
Wu
B. and Yeung
L.K., Minimum Delay Scheduling in Scalable Hybrid Electronic/Optical
Packet Switches, GLOBECOM 2006. |
|
Wu
B. and Yeung
L.K., Virtual topology design for OBS optical networks, IEEE ICC 2007.
|
|
Researcher
: Wu B |
|
List of Research Outputs |
|
Qu P.,
Wu B., Wang C., Yuan J., Wei J., Pang Y. and Shen G.G., Interative Bac-Projection
Reconstruction for Radial SENSE, Joint Annual Meeting of ISMRM-ESMRMB,
Berlin, Germany . |
|
Qu
P., Wu B., Wang C., Yuan J., Wei J., Pang Y. and Shen G.G., Interative Back-Projection
Reconstruction for Radial SENSE, Joint Annual Meeting of ISMRM-ESMRMB.
|
|
Wang
C., Pang Y., Wu B. and Shen G.G., Evaluation of Degenerated
Birdcage Coil for Parallel Imaging, Joint Annual Meeting of ISMRM-ESMRMB,
Berlin, Germany. |
|
Wang
C., Qu P., Wu B. and Shen G.G., Potential Advantage of
Higher-order Modes of Birdcage Coil for Parallel Imaging, Journal of
Magnetic Resonance. |
|
Wang
C., Pang Y., Wu B. and Shen G.G., SAR and B1 Filed in Human
Head Model for Birdcage, TEM and Microstrip Coils at 7T , Joint Annual
Meeting of ISMRM-ESMRMB. |
|
Wang
C., Pang Y., Wu B. and Shen G.G., SAR and B1 Filed in Human
Head Model for Birdcage, TEM and Microstrip Coils at 7T, Joint Annual
Meeting of |
|
Wu
B., Yeung
L.K., Wong Lui K.S. and Xu S., A new ILP-based p-cycle
construction algorithnm without candidate cycle enumeration, IEEE ICC 2007. |
|
Wu B., Zhang X.L., Qu P. and Shen G.G., Capacitively Decoupled Tunable Loop Microstrp (tlm) Array At 7t, Magnetic Resonance Imaging. Netherland, Wiley InterScience, 2007, V. 25 issue 3: 418-424. |
|
Wu B., Pang Y., Wei J., Qu P., Wang C., Yuan J. and Shen G.G., Comparison Between Broadband
Decoupling Methods for Microstrip Array, Joint Annual Meeting of
ISMRM-ESMRMB. |
|
Wu B., Pang Y., Wei J., Qu P., Wang C., Yuan J. and Shen G.G., Comparison Between Broadband
Decoupling Methods for Microstrip Array, Joint Annual Meeting of
ISMRM-ESMRMB, Berlin, Germany. |
|
Wu B., Zhang X.L., Qu P. and Shen G.G., Design of an Inductively Decoupled Microstrip Array at 9.4T, Journal of Magnetic Resonance. Netherland, Elsevier Inc., 2006, 182: 126-132. |
|
Wu
B. and Yeung
L.K., Improving Scheduling Efficiency for High-Speed Routers with Optical
Switch Fabrics, GLOBECOM 2006. |
|
Wu B., Qu P., Wang C., Yuan J. and Shen G.G., Interconnecting L/C
Components for Decoupling and Its Application to the Low-field Open MRI
Array, Concept in Magnetic Resonance, Part B: Magnetic Resonance
Engineering. |
|
Wu B., Qu P., Wang C., Yuan J. and Shen G.G., Interconnecting L/C
Components for Decoupling and Its Application to the Low-field Open MRI
Array, Magnetic Resonance Ingineering. |
|
Wu
B. and Yeung
L.K., Light-Trail Assignment in WDM Optical Networks, GLOBECOM 2006.
|
|
Wu
B. and Yeung
L.K., M2-CYCLE: an Optical Layer Algorithm for Fast Link Failure
Detection in All-Optical Mesh Networks, GLOBECOM 2006. |
|
Wu
B. and Yeung
L.K., Minimum Delay Scheduling in Scalable Hybrid Electronic/Optical
Packet Switches, GLOBECOM 2006. |
|
Wu
B. and Yeung
L.K., Virtual topology design for OBS optical networks, IEEE ICC 2007.
|
|
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., Fu S.Q., Hui E.S., Li R.S.,
Cheung M.M., Li D.T., So K.F. and Wu
E.X., Evaluation of glaucomatous optic nerve using in vivo
manganese-enhanced MRI, 2007 Proceedings of International Society of
Magnetic Resonance in Medicine. |
|
Chan K.C., Liang Y., Hui E.S., Kau P.W.,
Ellis-Behnke R.G., Schneider G.E., So K.F. and Wu E.X., Manganese-enhanced MRI of
axon regeneration by peptide nanofiber scaffold induction, 2007
Proceedings of International Society of Magnetic Resonance in Medicine . |
|
Cheng R.K., Asai T., Tang H., Dashoush N.H., Kara R., Costa K.D., Naka Y., Wu E.X., Wolgemuth D.J. and Chaudhry H.W., Cyclin A2 induces cardiac regeneration after myocardial infarction and prevent heart failure, Circulation Research. 2007, 100: 1741-1748. |
|
Cheung J.S., Chow A.M., Hui E.S., Yang J., Tse H.F. and Wu E.X., Cell number quantification of USPIO-labeled stem cells by MRI: an in vitro study, 28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBS). 2006, 476. |
|
Cheung J.S., Chow A.M., Man K., Fan S.F.
and Wu E.X., In vivo cell
tracking using micron-sized iron oxide particle (MPIO) labeling in rat model
of liver tumor metastasis, 2007 Proceedings of International Society of
Magnetic Resonance in Medicine. |
|
Cheung J.S., Chow A.M., Jensen J.H., Tang
H., Brown T.R., Sheth S., Brittenham G.M. and Wu E.X., MRI characterization of
iron in soluble (ferritin-like) and particulate (hemosiderin-like) mixtures, 2007
Proceedings of International Society of Magnetic Resonance in Medicine . |
|
Cheung J.S., Chow A.M., Tse H.F. and Wu E.X., MRI quantification of
USPIO-labeled cell density and number, 2007 Proceedings of International
Society of Magnetic Resonance in Medicine . |
|
Chow A.M., Chan Y.C., Lau Y.M., Cheung
J.S., Chow T.Y., Tse H.F. and Wu E.X.,
Electrophysiological properties of the effect of USPIO-labeling on embryonic
stem cells, 2007 Proceedings of International Society of Magnetic
Resonance in Medicine . |
|
Ellis-Behnke R.G., Liang Y., Tay D.K.C., So K.F. and Wu E.X., Chronic Injury Visualization of Regenerating Axons in Vivo in Hamster Optic Tract Transection Utilizing a 7 Tesla FMRI and a Nano Contrast Agent, Annual Meeting of the Association for Research in Vision and Ophthalmology (ARVO), Ft Lauderdale USA. 2007. |
|
Ellis-Behnke R.G., Liang Y.X., Chan
K.C.W., Tay D.K.C., So K.F. and Wu
E.X., Chronic injury visualization of regenerating axons in vivo in
hamster optic track transection utilizing a 7 Tesla FMRI and nano contrast
agent, 2007 Meeting of the Association for Research in Vision and
Ophthalmology (ARVO). |
|
Hui E.S., Hu B., Chan K.C., Mi S., So
K.F., Wu W.T. and Wu E.X.,
Characterization of neurodegeneration in experimental autoimmune
encephalomyelitis induced rat using high resolution DTI, 2007 Proceedings
of International Society of Magnetic Resonance in Medicine . |
|
Hui E.S., Lu H., Jensen J.H., Helpern
J.A., Chan K.C. and Wu E.X.,
In vivo Diffusion Kurtosis Imaging of Rat Brain, 2007 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., In vivo assessment of
optic nerve degeneration in glaucoma rat model using diffusion tensor
imaging, 2007 Proceedings of International Society of Magnetic Resonance
in Medicine. |
|
Jensen J.H., Swaminathan S.V., Tosti
C.L., Szulcl K.U., Hultman K., Wu E.X.,
Nunezl A., Sheth S., Brittenham G.M. and Brown T.R., Quantification of
ferritin iron in presence of hemosiderin, 2007 Proceedings of
International Society of Magnetic Resonance in Medicine . |
|
Lau
H.F., Hui E.S., Siu H.F., Yang J.,
Khong P.L. and Wu E.X., In vivo DTI study of
developmental rat brain, ISMRM 15th Scientific |
|
Leung V.Y.L., Hung S.C., Tsui Y.K., Lee
M.K., Li L.C., Lo G.G., Masuda K., Wu
E.X., Luk K.D.K., Chan D. and Cheung K.M.C., Allogeneic mesenchymal
stem cell transplanation into the intervertebral disc: effect of serverity of
degernation and cell number on regeneratiion, The International Society
for the Study of the Lumbar Spine, |
|
Leung V.Y.L., Hung S.C., Li L.C., Lo
G.G., Wu E.X., Luk K.D.K.,
Chan D. and Cheung K.M.C., Detection of age and disc level-related changes in
rabbit intervertebral disc hydration by deuterium oxide-assisted quantitative
MRI, The International Society for the Study of the Lumbar Spine. |
|
Leung Y.L., Wu E.X., Luk K.D.K., Chan D. and Cheung K.M.C., Allogeneic mesenchymal stem cell transplantation into the intervertebral disc: effect of severity of degeneration and cell number on regeneration, The Annual Meeting of the International Society for the Study of the Lumbar Spine. 2007. |
|
Leung Y.L., Wu E.X., Luk K.D.K., Chan D. and Cheung K.M.C., Regeneration of degenerated intervertebral disc using allogeneic Mesenchymal stem cells encapsulated in self-assembling peptide hydrogel, 53rd Annual Meeting of the Orthopaedic Research Society. 2007. |
|
Ng M.C., Lau H.F., Wu E.X., Hu Y., Yang E.S. and Luk D.K., Cervical spinal
cord fMRI study: modulation of functional activation signal by task
difficulty, hand skills and handedness, 2007 Proceedings of International
Society of Magnetic Resonance in Medicine . |
|
Swaminathan S.V., Tosti C.L., Hultman K.,
Jensen J.H., Nunez A., Wu E.X.,
Sheth S., Brittenham G.M. and Brown T.R., Validation of clinically usable,
fast, multi slice, multi echo T2 quantification sequence, 2007 Proceedings
of International Society of Magnetic Resonance in Medicine. |
|
Tang H., Miller C.O.R.I.N., Kennan R., Wu E.X., William D.S. and Liu H., In
vivo lipid quantitation in mouse using the gradient reversal water-fat
imaging method, 2007 Proceedings of International Society of Magnetic
Resonance in Medicine . |
|
Tse, Yat Hang and Leung G.K.K., Wu E.X., Preliminary results of sequential diffusion tensor imaging (DTI) assessment of white fiber tract integrity in head-injured rats, Annual Scientific Meeting of the Hong Kong Neurosurgical Society, Hong Kong, 8 - 9 December 2006. |
|
Wang S., Wu E.X., Wang Y., Lau H., Hui E., 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, ISMRM 15th Scientific Meeting & Exhibition, Berlin, Germany,19-25 May 2007. (Proc Intl Soc Mag Reson Med 2007;15:3075). 2007. |
|
Wang Y., Cheung P.T., Shen G.X., Wu E.X., Qiu D., Khong P.L. and Bhatia I., Comparing diffusion-weighted and T2-weighted MR imaging for the quantification of infarct size in a neonatal rat hypoxic-ischemic model at 24 h post-injury, International Journal of Developmental Neuroscience. Elsevier, 2007, 25: 1-5. |
|
Wu
E.X., Biomedical imaging for life sciences, 2006
|
|
Wu
E.X., Cheung J.S., Chow A.M., Jensen J.H.,
Brown T.R., Au W.Y., Ha S.H., Sheth S. and Brittenham G.M., MRI
characterization of ferritin-like and hemosiderin-like iron, International
Bioiron Society (IBIS) Meeting (oral presentation), Kyoto, Japan. |
|
Wu Y., Tse H.F. and Wu E.X., DTI study of postinfarct
myocardium structural remodeling in porcine model, 2007 Proceedings of
International Society of Magnetic Resonance in Medicine. |
|
Wu Y. and Wu E.X., In vivo coronary artery
imaging in mice, 2007 Proceedings of International Society of Magnetic
Resonance in Medicine. |
|
Yang
J. and Wu E.X., Detection
of gray matter damage in neonatal rat model of mild hypoxic-ischemic insult
by manganese-enhanced MRI., Proceedings of International Society of
Magnetic Resonance in Medicine . |
|
Yang J., Ma D., Wang Y., Khong P.L. and Wu E.X., Manganese-enhanced MRI of severe hypoxic-ischemic injuries in neonatal rat model., ISMRM 15th Scientific Meeting & Exhibition, Berlin, Germany,19-25 May 2007. (Proc Intl Soc Mag Reson Med 2007;15:313). 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 |
|
Lee
C.W., Ng K.K.S., Zhong J. and Wu F.F., Transmission Expansion
Planning From Past to Future, IEEE/PES 2006 Power Systems Conference adn
Exposition. |
|
Liu K., Ni Y. and Wu F.F., A Novel Model for Congestion Management Based on ORA-Based Decentralized Optimization, IEEE NAPS 2006. IEEE. |
|
Liu M. and Wu F.F., Managing Price Risk in a Multimarket Environment, IEEE Transaction on Power Systems. IEEE, 2006, 21, No. 4: 1512-1519. |
|
Liu M. and Wu F.F., Portfolio Optimization in Electricity Markets: I Spot Markets with Uniform Pricing, Electric Power Systems Research. 2007, 77: 1000-1009. |
|
Liu Y. and Wu F.F., Generator Bidding in Oligopolistic Electricity Markets Using Optimal Control : Fundamentals and Application, IEEE Transactions on Power Systems. 2006, 21, No. 3: 1050-1061. |
|
Liu Y. and Wu F.F., Impacts of Network Constraints on Electricity Market Equilibrium, IEEE Transactions on Power Systems. IEEE, 2007, 22 Issue 1: 126-135. |
|
Liu Y. and Wu F.F., Prisoner Dilemma: Generator Strategic Bidding in Electricity Markets, IEEE Transactions on Automatic Control. 2007, 52 No. 6: 1143-1149. |
|
Liu Y. and Wu F.F., Risk Management of Generators' Strategic Bidding in Dynamic Oligopolistic Electricity Market Using Optimal Control, IET Generation Transmission & Distribution. 2007, 1. No.3: 388-398. |
|
Shi L., Zhou H., Tam P.T.C., Chang N., Du Z., Ni Y. and Wu F.F., Developing a Power System Dynamic Security Assessment System, Part II: structure and function design and technology used, International Conference on Power System Technology 2006. |
|
Tong X. .J., Wu F.F. and Qi L., On the Convergence of Decoupled Optimal Power Flow Methods, Numerical Functional Analysis and Optimization. 2007, 28, Issue 3-4: 467-485. |
|
Wu
F.F., Zhong
J. and Zhang L., |
|
Xue A., Wu F.F., Lu Q. and Mei S., Power System Dynamic Security Region and Its Approximations, IEEE Transactions on Circuits and Systems I, Fundamental Theory and Applications. IEEE, 2006, 53, No.12: 2849-2859. |
|
Zhong
J., Xie M. and Wu F.F.,
Ordinal Optimization for Power Systems, IEEE/PES 2006 Power Systems
Conference and Exposition. |
|
Zhou H. and Wu F.F., Application Service in Grid-based Future Control Centers, IEEE Power Enginering Society General Meeting, June 2007. IEEE, 1-7. |
|
Zhou H. and Wu F.F., Data service in Grid-based Future Control Centers, International Conference on Power System Technology 2006. 1-6. |
|
Zhou
H., Wu F.F. and Ni Y., Design for Grid Service-based
Future Power System Control Centers, APSCOM, Hong Kong, Oct 2006. |
|
Researcher
: Wu Y |
|
List of Research Outputs |
|
Wu Y., Tang H., Ng M.C., Yang J., Tse H.F., Lau C.P., Yang E.S. and Wu E.X., Study of myocardial fiber length distribution with diffusion tensor MRI, 2006 Proceedings of International Society of Magnetic Resonance in Medicine. 2006, 1222. |
|
Researcher
: Wu YC |
|
List of Research Outputs |
|
Chen J., Wu Y.C. and Ng T.S., Timing robust joint carrier frequency and channel estimation for OFDM systems, Proceedings IEEE Wireless Communications and Networking Conference (WCNC 2007), Hong Kong. 2007. |
|
Researcher
: Wu Z |
|
List of Research Outputs |
|
Wu Z., Lai P.T. and Sin J...K...O..., A New High-Temperature Thermal Sensor Based on Large-Grain Polysilicon on Insulator, Sensors and Actuators A. 2006, 130: 129-134. |
|
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. |
|
Researcher
: Xie X |
|
List of Research Outputs |
|
Chan S.C. and Xie X., Biorthogonal recombination nonuniform cosine-modulated filter banks and their multiplier-less realizations, Journal of VLSI Signal Processing Systems. 2006, vol. 44, issue 12: pp. 5-23. |
|
Researcher
: Xu J |
|
List of Research Outputs |
|
Zhang X.F., Xu J., Lai P.T., Zou X. and Li C., Modeling of Scattering at High-k Dielectric/SiO2 Interface of Strained SiGe MOSFETs, Proceedings of 8th ICSICT. Shanghai, 2006, 1343-1345. |
|
Researcher
: Xu S |
|
List of Research Outputs |
|
Wu B.,
Yeung L.K., Wong Lui K.S. and Xu S., A new ILP-based p-cycle
construction algorithnm without candidate cycle enumeration, IEEE ICC 2007. |
|
Researcher
: Xu W |
|
List of Research Outputs |
|
Chang C., Xu W., Hung Y.S. and Fung P.C.W., Nonlinear dynamic characterization of intra-atrial ECG signals, Biomedizinische Technik. 2006, 51: A7. |
|
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. |
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Researcher
: Yang B |
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List of Research Outputs |
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Yang B., Kowk P.C.W. and Lai P.T., Influence of TCE concentration in thermal oxidation on reliability of SiC MOS capacitors under Flowler-Nordheim electron injection, Microelectronics Reliability. 2006, 46: 2044-2048. |
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Researcher
: Yang D |
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List of Research Outputs |
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Leung K.C., Li V.O.K. and Yang D., An overview of packet recordering in Transmission Control Protocol (TCP): Problems, solutions, and challenges, IEEE Transactions on Parallel and Distributed Systems. 2007, 18: 522-535. |
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Yang D., Shao W., Shen D. and Li V.O.K., Hybrid busy tone and carrier sense-based MAC protocol in multi-hop and hoc networks, Int. J. Ad Hoc and Ubiquitous Computing. 2007, 2: 208-214. |
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Yang D.,
Leung K.C. and Li V.O.K., Simulation-based comparisons
of solutions for TCP packet reordering in wireless networks, Proc. IEEE
Wireless Communications and Networking Conference. |
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Researcher
: Yang ES |
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Project Title: |
The Jockey Club Magnetic Resonance Imaging (MRI) Engineering Centre |
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Investigator(s): |
Yang ES |
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Department: |
Electrical & Electronic Engg |
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Source(s) of Funding: |
The |
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Start Date: |
01/2004 |
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Abstract: |
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To carry out clinical research studies on: (a) large scale clinical studies of aging and dementia, (b) cardiac MRI. |
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List of Research Outputs |
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Ng M.C., Lau H.F., Wu E.X., Hu Y., Yang E.S. and Luk D.K., Cervical
spinal cord fMRI study: modulation of functional activation signal by task
difficulty, hand skills and handedness, 2007 Proceedings of International
Society of Magnetic Resonance in Medicine . |
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Ng
M.C., Ho S.L., Ho J.T., Luk D.K.
and Yang E.S., Comparison
study of normalization methods by visual fMRI. , International Society for
Magnetic Resonance in Medicine (ISMRM 2007). [Abs] . |
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Ng M.C., Ho J.T., Ho S.L., Lee R., Li G., Cheng T.S., Song Y.Q., Kwok H.H., Ho W.L., Chu C.Y.A., Fong C.Y., Chan K.H., Cheung R.T.F., Li L.S.W., Yang E.S., Luk K.D.K., Hu Y., Ramsden D.B. and Leong Fung L.L.Y., MR-DTI study: abnormal water diffusion pattern in asymptomatic familial amyotrophic lateral sclerosis with SOD1 mutation, Second International Symposium on Healthy Aging: Meeting the Challenges of an Aging Population. 2007, 54. |
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Wu Y., Tang H., Ng M.C., Yang J., Tse H.F., Lau C.P., Yang E.S. and Wu E.X., Study of myocardial fiber length distribution with diffusion tensor MRI, 2006 Proceedings of International Society of Magnetic Resonance in Medicine. 2006, 1222. |
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Researcher
: Yang G |
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List of Research Outputs |
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Yang G.,
Shen D. and Li V.O.K., Adaptive video streaming over
multi-channel ad hoc networks, Proc. IEEE Globecom. |
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Researcher
: Yang J |
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Project Title: |
In vivo MRI Investigation of Nerve Degeneration and Regeneration Using Quantitative Diffusion Tensor Imaging |
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Investigator(s): |
Yang J, Wu EX |
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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: |
10/2006 |
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Abstract: |
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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. |
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List of Research Outputs |
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Chen M., Guo Y. and Yang J., Flow quantification of aorta by phase-contrast MR combined with sensitivity-encoded technique: an initial study, 基于敏感编码采集技术的MRI血流定量测量在主动脉在主动脉的初步研究, In: Dai Jianping, Chin J Radiol. 中华放射学杂志, BeiJing, Chinese medical society, 2007, 41: 14-18. |
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Cheung J.S., Chow A.M., Hui E.S., Yang J., Tse H.F. and Wu E.X., Cell number quantification of USPIO-labeled stem cells by MRI: an in vitro study, 28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBS). 2006, 476. |
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Cheung S.C., Chow M.K.A., Hui S.K., Yang J., Tse H.F. and Wu E.X., Cell number quantification of USPIO-labeled stem cells by MRI: an in vitro study., 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBS). 2006, 476. |
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Guo Y., Yang J., Jiang T. and Chen M., The great importance of MR parallel imaging, 重视MRI并行采集技术的研究, In: Dai Jianping, Chin J Radiol. 中华放射学杂志, BeiJing, The Chinese medical society, 2007, 41: 2-4. |
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Lau
H.F., Hui E.S., Siu H.F., Yang J.,
Khong P.L. and Wu E.X., In vivo DTI study of
developmental rat brain, ISMRM 15th Scientific |
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Wu Y., Tang H., Ng M.C., Yang J., Tse H.F., Lau C.P., Yang E.S. and Wu E.X., Study of myocardial fiber length distribution with diffusion tensor MRI, 2006 Proceedings of International Society of Magnetic Resonance in Medicine. 2006, 1222. |
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Yang
J. and Wu
E.X., Detection of gray matter damage in neonatal rat model of mild
hypoxic-ischemic insult by manganese-enhanced MRI., Proceedings of
International Society of Magnetic Resonance in Medicine . |
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Yang J., Ma D., Wang Y., Khong P.L. and Wu E.X., Manganese-enhanced MRI of severe hypoxic-ischemic injuries in neonatal rat model., ISMRM 15th Scientific Meeting & Exhibition, Berlin, Germany,19-25 May 2007. (Proc Intl Soc Mag Reson Med 2007;15:313). 2007. |
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Yang J., 第19章 心血管系统的MRI检查 第20章 胸部的MRI检查, In: 人民军医出版社, 磁共振成像技术指南——检查规范、临床策略及新技术应用, 2007. |
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Researcher
: Ye S |
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List of Research Outputs |
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Ye S., Chau K.T. and Niu S., Chaoization of a single-phase induction motor for washing machines, IEEE Industry Applications Society Annual Meeting. 2006, CD-ROM. |
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Researcher
: Yeung KH |
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List of Research Outputs |
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Yeung K.H. and Kwok Y.K., A Game
Theoretic Approach to Power Aware Wireless Data Access, IEEE Transactions on Mobile Computing. |
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Yeung K.H. and Kwok Y.K., On Maximizing Revenue for Client-Server Based Wireless Data Access in the Presence of Peer-to-Peer Sharing, Proceedings of the 17th Annual IEEE International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC'2006), Helsinki, Finland. 2006. |
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List of Research Outputs |
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Chan S.C., Tsui K.M., Yeung K.S. and Yuk T.T.I., Design, implementation and complexity optimization of a new digital IF for software radio receivers, IEEE Transactions Circuits and Systems I. 2007, vol. 54, no. 2: pp. 351-366. |
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Researcher
: Yeung LK |
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Project Title: |
Restorable Dynamic Routing using Shared-Path Protection |
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Investigator(s): |
Yeung LK |
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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: |
12/2004 |
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Abstract: |
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To design efficient restorable dynamic routing algorithms that are optimized for realizing a highly fault-resilient network. |
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List of Research Outputs |
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Chiu
H.S., Yeung L.K. and Wong Lui K.S., J-CAR: an Efficient
Channel Assignment and Routing Protocol for Multi-channel Multi-interface |
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Hu
B., Yeung L.K. and |
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Hu
B. and Yeung L.K.,
Load-balanced Three-stage Switch Architecture, IEEE HPSR 2007. |
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Hu
B., Yeung L.K. and |
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Li
J. and Yeung L.K., Most
Reliable Routing in WDM Mesh Networks with Arbitrary Risk Distribution, IEEE
ICC 2007. |
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Ling X. and Yeung L.K., Joint Access Point Placement and Channel Assignment for 802.11 Wireless Local Area Networks, IEEE Trans. on Wireless Communications. 2006, 5: 2705-2711. |
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Wang
X. and Yeung L.K., Load
Balanced Two-Stage Switches Using Arrayed Waveguide Grating Routers, HPSR
2007. |
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Wu B.,
Yeung L.K., Wong Lui K.S. and Xu S., A new ILP-based p-cycle
construction algorithnm without candidate cycle enumeration, IEEE ICC 2007. |
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Wu B.
and Yeung L.K., Improving
Scheduling Efficiency for High-Speed Routers with Optical Switch Fabrics, GLOBECOM
2006. |
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Wu B.
and Yeung L.K., Light-Trail
Assignment in WDM Optical Networks, GLOBECOM 2006. |
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Wu B.
and Yeung L.K., M2-CYCLE: an
Optical Layer Algorithm for Fast Link Failure Detection in All-Optical Mesh
Networks, GLOBECOM 2006. |
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Wu B.
and Yeung L.K., Minimum Delay
Scheduling in Scalable Hybrid Electronic/Optical Packet Switches, GLOBECOM
2006. |
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Wu B.
and Yeung L.K., Virtual
topology design for OBS optical networks, IEEE ICC 2007. |
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Yeung
L.K., A Novel Feedback-based Two-stage Switch
Architecture and its Three-stage Extension, |
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Yeung L.K., A Novel Feedback-based Two-stage Switch Architecture, University of Electronic Science and Technology of China (UESTC). 2007. |
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Zhou K., Yeung L.K. and Li V.O.K., A Simple Yet Efficient Active Queue Management Scheme, Computer Networks. 2006, 50: 3784-3794. |
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Researcher
: Yip HK |
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List of Research Outputs |
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Yip H.K. and Kwok Y.K., Practical Channel State Aware and Cooperative Packet Scheduling Disciplines for Coordinating Colocated Bluetooth and IEEE 802.11b Devices, Computer Communications. 2007, 30(7): 1569-1587. |
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Researcher
: Yuan J |
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List of Research Outputs |
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Du C., Yuan J. and Shen G.G., Comarison of FP, VCSEL and
DFB Laser diode in optical transmission for MR RF coil array, Joint Annual
Meeting of ISMRM-ESMRMB. |
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Du C..., Yuan J. and Shen G.G., Comarison of FP, VCSEL and
DFB Laser diode in optical transmission for MR RF coil array, Joint Annual
meeting of ISMRM-ESMRMB, Berlin, Germany. |
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Qu P.,
Wu B., Wang C., Yuan J., Wei J., Pang Y. and Shen G.G., Interative Bac-Projection
Reconstruction for Radial SENSE, Joint Annual Meeting of ISMRM-ESMRMB,
Berlin, Germany . |
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Qu
P., Wu B., Wang C., Yuan J., Wei J., Pang Y. and Shen G.G., Interative Back-Projection
Reconstruction for Radial SENSE, Joint Annual Meeting of ISMRM-ESMRMB.
|
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Wang
C., Qu P., Yuan J. and Shen G.G., Evaluation of Degenerated
Birdcage Coil for Parallel Imagingp. ., Joint Annual Meeting of
ISMRM-ESMRMB. |
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Wei J., Liu Z.G., Yuan J., Chai Z., Lian J. and Shen G.G., A Realization of Digital Wireless Transmission for MRI Signals Based on 802.11b, Journal of Magnetic Resonance. Netherland, Elsevier Inc., 2007, 186: 358-363. |
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Wei
J., Liu Z.G., Yuan J.,
Pang Y. and Shen G.G., Digital Wireless Transmission
for MRI Signal, Joint Annual Meeting of ISMRM-ESMRMB. |
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Wei
J., Liu G...Z..., Yuan J.,
Pang Y. and Shen G.G., Digital Wireless Transmission
for MRI Signal, Joint Annual Meetingf of |
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Wu
B., Pang Y., Wei J., Qu P., Wang C., Yuan J. and Shen G.G., Comparison Between Broadband
Decoupling Methods for Microstrip Array, Joint Annual Meeting of
ISMRM-ESMRMB. |
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Wu
B., Pang Y., Wei J., Qu P., Wang C., Yuan J. and Shen G.G., Comparison Between Broadband
Decoupling Methods for Microstrip Array, Joint Annual Meeting of
ISMRM-ESMRMB, Berlin, Germany. |
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Wu
B., Qu P., Wang C., Yuan J. and Shen G.G., Interconnecting L/C
Components for Decoupling and Its Application to the Low-field Open MRI
Array, Concept in Magnetic Resonance, Part B: Magnetic Resonance
Engineering. |
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Wu
B., Qu P., Wang C., Yuan J. and Shen G.G., Interconnecting L/C
Components for Decoupling and Its Application to the Low-field Open MRI
Array, Magnetic Resonance Ingineering. |
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Yuan J., Wei J., Cai G..., Pang Y., Du C... and Shen G.G., A 4-Channel Optical Link Transmission for RF coil array at 1.5T, Joint Annual Meeting of ISMRM-ESMRMB, Berlin, Germany. Gernamy, 2007, 1036. |
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Yuan J.,
Wei J., Cao G., Pang Y., Du C. and Shen G.G., A 4-channel Optical Link Transmission
For Rf Coil Array At 1.5t, Joint Annual Meeting of ISMRM-ESMRMB. |
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Yuan J.,
Wei J. and Shen G.G., A Direct Modulation Optical
Fiber Link For 0.3t Mri, Joint Annual Meeting of ISMRM-ESMRMB. |
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Yuan J.,
Wei J. and Shen G.G., A direct modulation optical
fiber lind for 0.3T MRI, Joint Annual Meeting of ISMRM-ESMRMB, Berlin,
Germany. |
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Yuan J. and Shen G.G., Gradient Coil Design Of Using Bi-2223 High Temperature Superconducting Tape For Gradient Coil In Magnetic Resonance Imaging, , , (2007) , Medical Engineering and Physics. Netherland, Wiley InterScience, 2007, 29: 442-448. |
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Yuan J.,
Wei J., Du C. and Shen G.G., Investigation Of |
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Yuan J.,
Rohan M...L... and Shen G.G.,
Investigation of Bi-2223 high temperature superconducting tape as the
material for gradient coil in MRI, Journal of Magnetic Resonance. |
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Yuan J.,
Wei J., Du C... and Shen G.G., Investigation of dynamic
range requirement for MRI signal transmission by optical fiber link, Joint
Annual Meeting of ISMRM-ESMRMB, Berlin, Germany. |
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Researcher
: Yuk TTI |
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Project Title: |
Optical and electrical properties of nano-scale structures |
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Investigator(s): |
Yuk TTI, Choy WCH |
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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: |
11/2004 |
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Completion Date: |
10/2006 |
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Abstract: |
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To grow nanostructures in a controllable manner by taking into account the effects of the growing conditions such as temperature, injected gas, pressure and catalyst, to study the morphology and crystal structure and to characterize the optical and electrical properties of the nanostructures for device applications. |
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List of Research Outputs |
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Chan S.C., Tsui K.M., Yeung K.S. and Yuk T.T.I., Design, implementation and complexity optimization of a new digital IF for software radio receivers, IEEE Transactions Circuits and Systems I. 2007, vol. 54, no. 2: pp. 351-366. |
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Jin L., Leung Y.P., Choy W.C.H. and Yuk T.T.I., ZnSe Nanorings and their Cathodoluminescence, The Materials Research Society (MRS) 2006 Fall Meeting. 2006. |
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Researcher
: Yung NHC |
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Project Title: |
Visual resolution of multiple severely occluded vehicles in monocular image sequences |
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Investigator(s): |
Yung NHC |
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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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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. |
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Project Title: |
Obstacle behavior prediction for vehicle collision avoidance in dynamically changing environments |
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Investigator(s): |
Yung NHC |
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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: |
01/2007 |
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Abstract: |
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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. |
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List of Research Outputs |
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He X. and Yung N.H.C., A novel algorithm for estimating vehicle speed from two consecutive images, Proceedings of IEEE Workshop on Applications of Computer Vision. Piscataway/USA, IEEE, 2007, 12. |
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He X. and Yung N.H.C., New method for overcoming ill-conditioning in vanishing-point-based camera calibration, Optical Engineering - The Journal of SPIE. Bellingham/USA, SPIE, 2007, 46 (3): 10. |
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Lee C.S., Chung C.W. and Yung N.H.C., Overview of
technologies for automatic data transmission for red light camera system, Proceedings
of the 8th Asia-Pacific ITS Forum. |
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Ngai
C.K., Pang C.C. and Yung N.H.C., TUTTI: a time-centric
Multi-modal transit information system for |
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Tan Z., He X. and Yung N.H.C., A novel merging criterion incorporating boundary smoothness and region homogeneity for image segmentation, Advances in Image and Video Technology , Lecture Notes in Computer Science. Berlin/Beidelberg, Springer, 2006, 4319/2006: 9. |
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Tan Z., He X. and Yung N.H.C., A novel merging criterion incorporating boundary smoothness and region homogeneity for image segmentation, Proceedings of IEEE Pacific-Rim Symposium on Image and Video Technology. Piscataway/USA, IEEE, 2006, 10. |
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Yung N.H.C., Expert advice on issues pending resolution – R8 TCSS SEC Subsystem, Expert report for Highways Department, Government of the HKSAR. 2007. |
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Yung N.H.C., Expert advice on the modifications and improvements of the proposed R8 TCSS SEC Subsystem, Expert report for Highways Department, Government of the HKSAR. 2007. |
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Yung N.H.C., Expert advice on the technical and operational capability of the proposed R8 TCSS SEC Subsystem, Expert report for Highways Department, Government of the HKSAR. 2007. |
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Yung N.H.C., Expert report on the accuracy and reliability of MultaRadar C Speed Enforcement System, Expert report for Parking Systems Ltd. 2006. |
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Yung N.H.C., Inspection report on the installation and operation of the MultaRadar C Speed Enforcement System, Expert report for Parking Systems Ltd. 2006. |
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Yung N.H.C., Vehicle speed measurement using cross ratio – GM4273, Expert report for Parking Systems Ltd. 2007. |
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Yung N.H.C., Vehicle speed measurement using cross ratio – JJ611, Expert report for Parking Systems Ltd. 2007. |
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Yung N.H.C., Vehicle speed measurement using cross ratio – JT137, Expert report for Parking Systems Ltd. 2006. |
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Yung N.H.C., Vehicle speed measurement using cross ratio – KG377, Expert report for Parking Systems Ltd. 2007. |
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Yung N.H.C., Vehicle speed measurement using cross ratio – LL2597, Expert report for Parking Systems Ltd. 2007. |
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Yung N.H.C., Vehicle speed measurement using cross ratio – MD8294, Expert report for Parking Systems Ltd. 2006. |
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Researcher
: Zhang D |
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List of Research Outputs |
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Chau K.T., Zhang D., Jian L., Jiang J. and Zhang Y., A compact wind-power permanent-magnet generator using magnetic gearing, Computation of Electromagnetic Fields Conference. 2007, CD-ROM. |
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Chau K.T., Zhang D., Jiang J., Liu C. and Zhang Y.J., Design of a magnetic-geared outer-rotor permanent-magnet brushless motor for electric vehicles, IEEE Joint Magnetism & Magnetic Materials - International Magnetics Conference. 2007, CD-ROM. |
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Chau K.T., Zhang D., Jiang J., Liu C. and Zhang Y.J., Design of a magnetic-geared outer-rotor permanent-magnet brushless motor for electric vehicles, IEEE Transactions on Magnetics. 2007, 43(6): 2504-2506. |
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Niu
S., Chau K.T., Zhang D. and Jiang J., Eddy-current loss analysis of
a double-stator permanent-magnet brushless DC machine, Computation of
Electromagnetic Fields Conference. |
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Zhang D., Chau K.T., Niu S. and Jiang J., Design and analysis of a double-stator cup-rotor PM integrated-starter-generator, IEEE Industry Applications Society Annual Meeting. 2006, CD-ROM. |
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Zhang Y., Chau K.T., Jiang J., Zhang D. and Liu C., A finite element – analytical method for electromagnetic field analysis of electric machines with free rotation, IEEE Transactions on Magnetics. 2006, 42(10): 3392-3394. |
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Researcher
: Zhang Z |
|
List of Research Outputs |
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Chan S.C., Zhang Z. and Tsui K.M., Minimum Variance Spectral Estimation-Based Time Frequency Analysis for Nonstationary Time-Series, Proc. IEEE Int'l Symposium on Ciruits and Systems (ISCAS'2007). 2007, 1815-1818. |
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Law T.M., Chan S.C. and Zhang Z., A Turbo Receiver for Wireless Mc-Cdma Communications Using Map-Em Demodulator with Ldpc Codes under Narrowband Interference, Proc. IEEE 12th DSP Workshop. 2006, 94-98. |
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Tsui K.M., Zhang Z., Chan S.C., Hu Y. and Luk K.D.K., On the Time-frequency Analysis of Trunk Muscles During Sudden Release of Load, Proc. IEEE Int'l Symposium on Ciruits and Systems (ISCAS'2007). 2007, 1309-1312. |
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Zhang Z. and Chan S.C., A New Minimum Variance Spectral Estimation Method for Analyzing Click-Evoked Otoacoustic Emissions, Proc. IEEE Int'l Symposium on Ciruits and Systems (ISCAS'2007). 2007, 833-836. |
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Researcher
: Zhao S |
|
List of Research Outputs |
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Chan S.C., Tsui K.M. and Zhao S., A Methodology for Automatic Hardware Synthesis of Multiplier-less Digital Filters with Prescribed Output Accuracy, Proc. Asia Pacific Conference on Circuits and Systems (APCCAS'06). 2006, 61-64. |
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Zhao S. and Chan S.C., Robust Transmit/Receive Beamformer Design and Power Control with Channel Uncertainty in MIMO MC-CDMA System, Proc. IEEE 12th DSP Workshop. 2006, 409-413. |
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Researcher
: Zhong H |
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List of Research Outputs |
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Zhong
H., Mai
F. and Hung Y.S., Camera
Calibration using Circle and Right Angles, International Conference on Pattern
Recognition ICPR2006, Vol 1 Track 1: Computer Vision and Image Analysis,
Session Mon-P-I-3. |
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Zhong
H., Cheung
W.F.J. and Hung Y.S.,
Reconstruction from Plane Mirror Reflection, International Conference on
Pattern Recognition ICPR2006, Vol 1 Track 1: Computer Vision and Image
Analysis, Session Mon-P-I-3, |
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Zhong H. and Hung Y.S., Self-calibration from one circular motion sequence and two images, Pattern Recognition. 2006, 39, No. 9: 1672-1678. |
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Researcher
: Zhong J |
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Project Title: |
Electric power ancillary services markets |
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Investigator(s): |
Zhong J, Wu FF |
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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: |
12/2004 |
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Completion Date: |
11/2006 |
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Abstract: |
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To formulate the cost functions for the specific ancillary services with due consideration to their various components; to develop pricing mechanisms that are fair and equitable for those services to recover the costs. |
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Project Title: |
Electric Power Ancillary Services: Market Design and Pricing Mechanisms |
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Investigator(s): |
Zhong J |
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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 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. |
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Project Title: |
Impacts of Distributed Generation on Power Systems |
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Investigator(s): |
Zhong J |
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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: |
02/2006 |
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Abstract: |
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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 |
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Project Title: |
Vector ordinal optimization theory based power transmission planning in restructured power systems |
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Investigator(s): |
Zhong J, Wu FF |
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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: |
01/2007 |
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Abstract: |
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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. |
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List of Research Outputs |
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Chen
L., Zhong J. and Gan D.,
Optimal Automatic Generation Control Dispatching and its Control Performance
Analysis for the Distribution Systems with DGs, IEEE/PES General Meeting, |
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Chen L., Zhong J. and Gan D., The Optimal Reactive Power Planning of Radial Distribution Systems with Distributed Generation, Automation of Electric Power Systems (in Chinese). 2006, 30, No.14: 20-24. |
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Feng
D., Zhong J. and Gan D., A
Discriminative Gid-Cap Setting Method for Ex Ante Market Power Regulation, IEEE/PES
General Meeting, |
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Lee
C.W., Ng K.K.S. and Zhong J., Portfolio Optimization in
Transmission Investment in Deregulated Market, IEEE/PES General Meeting, |
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Lee
C.W., Ng K.K.S., Zhong J. and Wu F.F., Transmission Expansion Planning
From Past to Future, IEEE/PES 2006 Power Systems Conference adn Exposition.
|
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Lee C.W., Ng K.K.S. and Zhong J., Value-based Transmission Expansion Planning in Deregulated Market, The 38th North American Power Symposium . 2006. |
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Ng K.K.S., Lee C.W. and Zhong J., A Game-Theoretic Approach to study Strategic Interactions between Transmission and Generation Expansion Planning, The 38th North American Power Symposium. 2006. |
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Wu
F.F., Zhong J. and Zhang
L., |
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Zhang L. and Zhong J., UFLS Design by using f and
Integrating df/dt, Proceedings of IEEE/PES 2006 Power Systems Conference
and Exposition. |
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Zhong
J., Xie M. and Wu F.F., Ordinal Optimization for Power
Systems, IEEE/PES 2006 Power Systems Conference and Exposition. |
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Zhong
J. and Kang C., Transition of |
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Researcher
: Zhou H |
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List of Research Outputs |
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Shi L., Zhou H., Tam P.T.C., Chang N., Du Z., Ni Y. and Wu F.F., Developing a Power System Dynamic Security Assessment System, Part II: structure and function design and technology used, International Conference on Power System Technology 2006. |
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Zhou H. and Wu F.F., Application Service in Grid-based Future Control Centers, IEEE Power Enginering Society General Meeting, June 2007. IEEE, 1-7. |
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Zhou H. and Wu F.F., Data service in Grid-based Future Control Centers, International Conference on Power System Technology 2006. 1-6. |
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Zhou H.,
Wu F.F. and Ni Y., Design for Grid Service-based
Future Power System Control Centers, APSCOM, Hong Kong, Oct 2006. |
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Researcher
: Zhou K |
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List of Research Outputs |
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Zhou K., Yeung L.K. and Li V.O.K., A Simple Yet Efficient Active Queue Management Scheme, Computer Networks. 2006, 50: 3784-3794. |
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Researcher
: Zhou Y |
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Project Title: |
Interference cancellation for high speed VSF-OFCDM systems |
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Investigator(s): |
Zhou Y, Wang J |
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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: |
11/2004 |
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Abstract: |
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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. |
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List of Research Outputs |
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Pan
X., Zhou Y., Ma S. and Ng T.S., An Improved Derivative Method
for Symbol Synchronization in OFDM Systems, Wireless Communications and
Networking Conference, 2007.WCNC 2007. IEEE. |
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Pan
X., Zhou Y., Ma S. and Ng T.S., An improved derivative method
for symbol synchronization in OFDM systems, Proceedings IEEE Wireless
Communications and Networking Conference (WCNC2007), |
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Zhou
Y., Wang
J. and Ng T.S., A Novel Code
Assignment Scheme for Broadband OFCDM Systems, TENCON 2006. 2006 IEEE
Region 10 Conference. |
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Researcher
: Zou X |
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List of Research Outputs |
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Lai P.T., Xu J.P., Li C., Zou X. and Chen W.B., Preparation of high-quality gate dielectrics for Ge MOSFETs in wet ambients, Proceedings of 8th ICSICT. Shanghai, 2006, 132-135. |
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Zhang X.F., Xu J., Lai P.T., Zou X. and Li C., Modeling of Scattering at High-k Dielectric/SiO2 Interface of Strained SiGe MOSFETs, Proceedings of 8th ICSICT. Shanghai, 2006, 1343-1345. |
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Zou X., Xu J. .P., Li C. and Chen W. .B., A Threshold-Voltage Model of SiGe-Channel pMOSFET without Si Cap layer, Microelectronics Reliability. 2007, 47: 391-394. |
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Zou
X., Li
C., Xu J.P., Lai P.T. and Chen
W.B., Electrical Characteristics of Ge MOS Capacitor with HfTiON as Gate
Dielectric, Proceedings of RIUPEEEC. |
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Zou X., Xu J.P., Lai P.T., Li C. and Zhang X.F., Gate Leakage Model of Ge MOS Capacitor with High-k Gate Dielectric, Proceedings of 8th ICSICT. Shanghai, 2006, 433-435. |
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Zou
X., Xu J.P., Li C. and Lai P.T., Suppressed growth of unstable
low-k GeOx interlayer in Ge metal-oxide-semiconductor capacitor with high-k
gate dielectric by annealing in water vapor, Applied Physics Letters.
2007, 90: 16 |
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