Dept of Mechanical Engg

THE UNIVERSITY OF HONG KONG
Research and Scholarship 2004

DEPARTMENT OF MECHANICAL ENGINEERING

Researcher : Bakountouzis LN

Project Title:	Decompression of diesel engines in ship propulsion
Investigator(s):	Mr. Bakountouzis L.N.
Department:	Mechanical Engineering
Source(s) of Funding:	Block Grant Earmarked for Research
Start Date:	12/1987

Abstract:

To investigate theoretically the reduction in the stopping and reversing time of a diesel engine used in ship propulsion and the subsequent reduction in the stopping distance of a ship; to develop a special decompression valve and associated control equipment whereby cylinder contents can be emptied at the right instant during the cycle, thus affecting the braking effect on the engine; to correlate theoretical and experimental results.

Project Title:	Petrol engine fuel quality requirements
Investigator(s):	Mr. Bakountouzis L.N.
Department:	Mechanical Engineering
Source(s) of Funding:	Block Grant Earmarked for Research
Start Date:	07/1992

Abstract:

To investigate the effect of the quality of present-day fuels, available in Hong Kong, on the performance of typical petrol engines; to establish the requirements for a safe margin of protection against detonation and to quantify the loss of performance incurred, for the same protection, for a range of engines/fuels.

Researcher : Chan ATY

Project Title:	Evaluation of air pollution indication system in Hong Kong
Investigator(s):	Dr. Chan A.T.Y.
Department:	Mechanical Engineering
Source(s) of Funding:	Pollution Studies in Hong Kong
Start Date:	01/2000

Abstract:

To produce an objective assessment of its air quality and an effective mean of control measures through the analysis air quality and air pollution indices of various countries.

Project Title:	Modelling indoor-outdoor air quality relationships in buildings
Investigator(s):	Dr. Chan A.T.Y.
Department:	Mechanical Engineering
Source(s) of Funding:	Leung Kau Kui Research and Teaching Endowment Fund
Start Date:	11/2002

Abstract:

To characterize the relationship between indoor and outdoor air quality (Anderson 1972; Dockery & Spengler. 1981).

Project Title:	Indoor/outdoor air quality relationships of respirable suspended particulates, nitrogen oxides and carbon monoxides in urban buildings
Investigator(s):	Dr. Chan A.T.Y., Dr. Li Y.G.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	09/2003

Abstract:

To investigate experimentally and computationally indoor-outdoor (IO) relationships in buildings and to develop semi-empirical models for various situations.

Project Title:	Indoor/outdoor air quality relationships of respirable suspended particulates, nitrogen oxides and carbon monoxides in urban buildings
Investigator(s):	Dr. Chan A.T.Y., Dr. Li Y.G.
Department:	Mechanical Engineering
Source(s) of Funding:	RGC Projects (Block Grant Funded)
Start Date:	09/2003

Abstract:

To investigate experimentally and computationally indoor-outdoor (IO) relationships in buildings and to develop semi-empirical models for various situations.

List of Research Outputs

Chan A.T.Y., Commuter exposure and indoor-outdoor relationships of carbon oxides in buses in Hong Kong, Atmospheric Environment. Amsterdam, Netherlands, Elsevier, 2003, 37(27): 3809-3815.

Chan A.T.Y., Drag effect on mountain waves by flow over topography, Proceedings of 16th ASCE Engineering Mechanics Conference. American Society of Civil Engineers, 2003, 8pp.

Chan A.T.Y. and Chung M.W., Indoor-outdoor air quality relationships in vehicle: effect of driving environment and ventilation modes, Atmospheric Environment. Amsterdam, Netherlands, Elsevier, 2003, 37(27): 3795-3808.

Edussuriya P.S., Ye A.M. and Chan A.T.Y., Urban Building Density and Air Quality: The Case of Mong Kok; Hong Kong, Proceedings: 1st International Tropical Architectural Conference, Feb 26 -28, 2004. Singapore, National University of Singapore.

Edussuriya P.S., Ye A.M. and Chan A.T.Y., Urban building density and air quality: The case of Mong Kok; Hong Kong, Proceedings of 1st International Trcpical Architecture Conference. Singapore, INTA, 2004, 11pp.

Li Y., Chan A.T.Y., Leung Y.C. and Lee J.H.W., Dispersion and control of SARS virus aerosols in indoor environemnt - transmission routes and ward ventrilation, The 2nd Natioanl Conference on NEw Advances of Refrigevation and Air-Conditioning. Shanghai, China, 2003, 8pp.

So E.S.P., Chan A.T.Y. and Lai K.K., Large eddy simulation of pollutant dispersiion in an urban street canyon under different geometric configuratioin, Proceedings of 17th ASCE Engineering Mechanics Conference. Newark, USA, University of Delaware, 2004, 254: 8pp.

Yu I.T.S., Li Y., Wong T.W., Tam W., Chan A.T.Y., Lee J.H.W., Leung Y.C. and Ho T., Evidence of airborne transmission of the severe acute respiratory syndrome virus, The New England Journal of Medicine. Waltham, USA, Massachusetts Medical Society, 2004, 350: 1731-1739.

Researcher : Chan BP

Project Title:	Photochemical crosslinking (PC) technology in fabrication of collagen-based scaffolds for tissue engineering
Investigator(s):	Dr. Chan B.P.
Department:	Mechanical Engineering
Source(s) of Funding:	Block Grant Earmarked for Research
Start Date:	02/2004

Abstract:

To develop an innovative photochemical crosslinking technology, which is the light activation of a photosensitizing compound leading to the crosslinking of collagen.

List of Research Outputs

Chan B.P., Yuen W.F., Lee W.H., Wong S.N., Chung T.Y., Wu Y.J. and Pang S.F., Immunomodulating effects of CKBM on the cytokine productiion in peripheral blood mononuclear cells (PBMCs) from healthy volunteers, Immunopharmacology and Immunotoxicology. New York, USA, Marcel Bekker, Inc., 2004, 26(2): 177-192.

Wong M.W., Tang Y.Y., Lee S.K., Fu B.S., Chan B.P. and Chan C.K., Effect of dexamethasone on cultured human tenocytes and its reversibility by platelet-derived growth factor, The Journal of Bone & Joint Surgery. USA, UMI, 2003, 85-A(10): 1914-1920.

Researcher : Chan CK

List of Research Outputs

Chan C.K. and Tan S.T., Generating assembly features onto split solid models, Computer-aided Design. Elsevier, 2003, 35(14): 1315-1336.

Researcher : Chan CW

Project Title:	Computation intelligent fault detection and isolation methods for nonlinear systems
Investigator(s):	Dr. Chan C.W., Prof. Zhang H.Y.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	09/2002

Abstract:

The project attempts to develop fault detection and isolation (FDI) techniques based on neurofuzzy networks. Methods for obtaining qualitative interpretation of faults from the network based on some prior knowledge of the plant are also developed.

Project Title:	A unified framework for the compensation of memoryless actuator nonlinearity in feedback control
Investigator(s):	Dr. Chan C.W.
Department:	Mechanical Engineering
Source(s) of Funding:	Block Grant Earmarked for Research
Start Date:	11/2003

Abstract:

To develop a general compensator for unknown memoryless actuator non-linearity, but known upper or lower bounds, and to derive conditions for the compensated system to be globally stable, by extending the actuator saturation compensator; to devise methods to design the saturation compensator from the stability conditions in both the time and frequency domain; to develop special guidelines for designing the actuator compensator for this class of controllers, and to investigate stability of the compensated system.

List of Research Outputs

Chan C.W., Editorial: Special issue on data-driven modelling methods adn their applications, International Journal of Systems Science. UK, Taylor & Francis Ltd., 2003, 34(14-15): 731-732.

Chan C.W., Jayawardena A.W. and Mok H.T., Estimating mortality in the early stage of a SARS outbreak, Cover Story. Hong Kong Engineer, 2003, 10-11.

Choy K.Y. and Chan C.W., Modelling of river discharges and rainfall using radial basis function networks based on support vector regression, International Journal of Systems Science. UK, Taylor & Francis Ltd., 2003, 34(14-15): 763-773.

Liu X.J., Lara-Rosano F. and Chan C.W., Model-reference adaptive control based on neurofuzzy networks, IEEE Transactions on Systems, Man, and Cybernetics - Part C: Applications and Reviews. IEEE, 2004, 34(3): 302-309.

Liu X.J., Lara-Rosano F. and Chan C.W., Neurofuzzy network modelling and control of steam pressure in 300MW steam-boiler system, Engineering Applications of Artificial Intelligence. UK, Elsevier, 2003, 16: 431-440.

Researcher : Chan KW

Project Title:	Computer integration of electrical discharge machining process
Investigator(s):	Dr. Chan K.W., Prof. Tan S.T., Dr. Wong S.T.W.
Department:	Mechanical Engineering
Source(s) of Funding:	Innovation and Technology Fund, Innovation and Technology Commission of Hong Kong Government
Start Date:	01/2002
Completion Date:	12/2003

Abstract:

To automate the EDM NC code generation and establish a computer network together with the associated communication procedures in the machining shopfloor of NTHK for exchanging manufacturing instructions and production information of high integrity between the EDM machines and a central supervisory computer.

Project Title:	Computer integration of electrical discharge machining process
Investigator(s):	Dr. Chan K.W., Prof. Tan S.T., Dr. Wong S.T.W.
Department:	Mechanical Engineering
Source(s) of Funding:	Nypro Tool Hong Kong Ltd. (NTHK)
Start Date:	01/2002
Completion Date:	12/2003

Abstract:

Project Title:	A computer-aided mould design system based on STL CAD model
Investigator(s):	Dr. Chan K.W., Mr. Sze W.S., Prof. Tan S.T.
Department:	Mechanical Engineering
Source(s) of Funding:	Innovation and Technology Fund, Innovation and Technology Commission of Hong Kong Government
Start Date:	08/2003

Abstract:

To develop an affordable and proficient computer-aided mould design system with the following features: (1) input based on point set model of production parts and represented in STL file format, (2) generation and modification of parting line and parting surface, (3) generation and modification of holes and side cores, (4) splitting of upper and lower cavity blocks, (5) generation of cavity moulds and runner layout design.

Project Title:	A new method of generating milling tool path programs
Investigator(s):	Dr. Chan K.W.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	12/2003

Abstract:

To reduce and stabilise cutting load in milling operation by applying computational techniques to isolate the concave corners of a machining region, thereby forming a major region and a number of disjoint sub-regions.

Project Title:	A new method of generating milling tool path programs
Investigator(s):	Dr. Chan K.W.
Department:	Mechanical Engineering
Source(s) of Funding:	RGC Projects (Block Grant Funded)
Start Date:	12/2003

Abstract:

List of Research Outputs

Chan K.W. and Ng M.L., Report in pressure improvement of the "Magnum" hand pump, Nanma Manufacturing Co. Ltd. Hong Kong (FDA approved, USA). 2003.

Chan K.W. and Ng M.L., Test report of the 2V-1068 ‘Vibrosux’ Vacuum Pump, Nanma Manufacturing Co. Ltd., Hong Kong. (FDA approved, USA). 2003.

Chan K.W. and Ng M.L., Test report of the 2V-1476 Bendable Vacuum Pump and Vibrator, Nanma Manufacturing Co. Ltd., Hong Kong. (FDA approved, USA). 2003.

Chan K.W. and Ng M.L., Test report on the design-improved "Magnum Pump", Nanma Manufacturing Co., Ltd., Hong Kong (FDA approved, USA). 2003.

Choy H.S. and Chan K.W., Modeling cutter swept angle at cornering cut, International Journal of CAD/CAM. Seoul, Korea, Society of CAD/CAM Engineers, 2003, 3(1): 1-12.

Zheng J., Chan K.W. and Gibson I., Constrained deformation of freeform surfaces using surface features for interactive design, International Journal of Adavenced Manufacturing Technology. UK, Springer-Verlag London Ltd., 2003, 22: 54-67.

Researcher : Chang STC

List of Research Outputs

Chang S.T.C., Inagaki H. and Duggan B.J., Reducing cube volume in recrystallized texture by controlling the finishing temperature adn rolling strain in Al-5%Mg alloy, In: Eds: T. Chandra, J.M. Torralba, T. Sakai, International Conference on Processing & Manufacturing of Advanced Materials (THERMEC'2003). Madrid, Spain, Materials Science Forum, 2003, 426-432: 3763-3768.

Researcher : Chen KZ

Project Title:	A systematic method for designing heterogeneous components with special functions using Axiomatic Design and Topology Optimization
Investigator(s):	Dr. Chen K.Z.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	12/2000

Abstract:

To develop a systematic and effective method for designing components made of heterogeneous materials according to their required functions in high-tech application using Axiomatic Design and Topo;logy Optimization, supported by database and computer models.

Project Title:	A genetic-engineering-based design theory and methodology for product innovation
Investigator(s):	Dr. Chen K.Z.
Department:	Mechanical Engineering
Source(s) of Funding:	RGC Projects (Block Grant Funded)
Start Date:	07/2003

Abstract:

To apply genetic engineering techniques for the development of a novel and systematic design theory and methodology for innovating products quickly and effectively.

Project Title:	Investigating the fabrication method for components made of multiphase perfect materials
Investigator(s):	Dr. Chen K.Z.
Department:	Mechanical Engineering
Source(s) of Funding:	Block Grant Earmarked for Research
Start Date:	02/2004

Abstract:

To develop an effective fabrication method for components made of multiphase perfect materials by mean of virtual prototyping.

List of Research Outputs

Chen K.Z. and Feng X.A., A framework of the genetic-engineering-based design theory and methodology for product innovation, Proceedings of 14th International Conference on Engineering Design. Stockholm, Sweden, 2003, No. 1093.

Chen K.Z. and Feng X.A., CAD modeling for the components made of multi heterogeneous materials and smart materials, Computer-Aided Design. Exeter, UK, Elsevier Ltd., 2004, 36: 51-63.

Chen K.Z. and Feng X.A., Developing a manufacturing technology for components made of multi heterogeneous materials, Proceedings of 3rd International Conference on Advanced Manufacturing Technology, ICAMT 2004. Kuala Lumpur, Malaysia, 259-265.

Chen K.Z. and Liu S.D., Developing the database of heterogeneous materials with a periodic microstructure, Proceedings of 3rd International Conference on Advanced Manufacturing Technology, ICAMT 2004. Kuala Lumpur, Malaysia, 252-258.

Chen K.Z. and Feng X.A., Developing the methods of modeling heterogeneous components, Integrated Manufacturing Systems. Bradford, UK, MCB UP Ltd., 2003, 14: 586-592.

Chen K.Z. and Feng X.A., Gene-engineering-based innovation and reverse deduction of virtual chromosomes of manufacturing products, Proceedings of the CIRP Design Conference. Cairo, Egypt, 2004, 7A-2-43.

Chen K.Z., Zhu F. and Feng X.A., Generating layered manufacturing informatioon for components made of a multiphase perfect material from their CAD models, Proceedings of International CAD Conference. Pattaya Beach, Thailand, 2004, Hot-mod-02.

Chen K.Z. and Feng X.A., Solid model reconstruction from engineering paper drawings using Genetic Algorithms, Computer-Aided Design. Exeter, UK, Elsevier Ltd., 2003, 35: 1235-1248.

Chen K.Z. and Feng X.A., Virtual genes of manufactured products and their reforms for product innovaive design, Journal of Mechanical Engineering Science, Proceedings of the Institution of Mechanical Engineers Part C. London, UK, Professioinal Engineering Publishing Ltd., 2004, 218: 557-574.

Zhang X., Chen K.Z. and Feng X.A., Optimization of material properties needed for material design of components made of multi-heterogeneous materials, Materials & Design. Exeter, UK, Elsevier Ltd., 2004, 25: 369-378.

Zhu F. and Chen K.Z., A CAD modeling system for the components made of multi heterogeneous materials, Proceedings of the 9th IEEE International Conference on Emerging Technologies and Factory Automation. Lisbon, Portugal, 2003, 1253-1248.

Researcher : Chen QZ

Project Title:	The effect of grain boundary elements on the microstructures and properties of single crystal and bi-crystal superalloys
Investigator(s):	Dr. Chen Q.Z., Prof. Duggan B.J.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	09/2001
Completion Date:	08/2004

Abstract:

To develope our scientific understanding of the effects of grain boundary strengthening elements on bulk single crystal superalloy properties and the roles of different minor elements in grain boundary strengthening; to develope a second generation single crystal superalloy for nozzle guide vane application with sufficient grain boundary strength to allow a significant increase in grain defect tolerance and minimal degradation in bulk single crystal superalloy propertise through the presence of grain boundary strenthening elements.

Project Title:	Microstructure and its effect on mechanical properties of cast fe-ni-cr-based alloys
Investigator(s):	Dr. Chen Q.Z., Dr. Knowles D.M.
Department:	Mechanical Engineering
Source(s) of Funding:	Block Grant Earmarked for Research
Start Date:	10/2002
Completion Date:	09/2004

Abstract:

To investigate the microstructure of these newly developed cast materials as a function of thermal exposure which is encountered in service and to link the observations to the changes in mechanical properties, both in terms of short and long term behaviours. i.e. toughness, tensile strength and creep properties.

List of Research Outputs

Chen Q.Z., Thomas C.W. and Knowles D.M., Characterisation of 20Cr32Ni1Nb alloys in as-cast and Ex-Service conditions by SEM, TEM and EDX, Materials Science & Engineering A. Lausanne, Switzerland, Elsevier Science Ltd., 2004, A374: 398-408.

Chen Q.Z., Lu W.W., Wong C.T., Cheung K.M.C. and Leong J.C.Y., HRTEM and EDX investigation of microstructure of bonding zone between bone and hydroxyapatite In Vivo, Bioceramics. Zurich, Switzerland, Trans. Tech. Publication, 2003, 16: 165-168.

Chen Q.Z. and Knowles D.M., Mechanism of <112>/3 slip initiation and anisotropy of g' phase in CMSX-4 during creep at 750^oC and 750 MPa, Materials Science & Engineering A. Lausanne, Switzerland, Elsevier Science, 2003, A356: 352-367.

Chen Q.Z., Kong Y., Jones C.N. and Knowles D.M., Porosity reduction by minor additions in RR2086 superalloy, Scripta Materialia. Oxford, UK, Elsevier Science Ltd., 2004, 52: 155-160.

Chen Q.Z., Wong C.T., Lu W.W., Cheung K.M.C., Leong J.C.Y. and Luk K.D.K., Strengthening mechanisms of bone bonding to crystalline hydroxyapatite in vivo, Biomaterials. Oxford, UK, Elsevier Science Ltd., 2004, 25: 4243-4254.

Chen Q.Z. and Duggan B.J., The formation of microstructures in cold rolled interstitial-free steel, Physics of Metals and Metallography. USA, Interperiodica, 2003, 96: S16-S27.

Knowles D.M., Thomas C.W., Keen D.J. and Chen Q.Z., In service embrittlement of cast 20Cr32Ni1Nb components used in steam reformer applications, International Journal of Pressure Vessels and Piping. Oxford, UK, Elsevier Science Ltd., 2004, 81: 499-506.

Kong Y. and Chen Q.Z., Effect of minor additions on the formation of TCP phases in modified RR2086 SX superalloys, Materials Science & Engineering A. Lausanne, Switzerland, Elsevier Science Ltd., 2004, A366: 135-143.

Researcher : Chen Y

List of Research Outputs

Chen Y. and Chwang A.T.Y., Particle image velocimetry system with self-organized feature map algorithm, Journal of Engineering Mechanics. ASCE, 2003, 129(10): 1156-1163.

Chwang A.T.Y. and Chen Y., Field measurement of ship waves in Victoria Harbor, Journal of Engineering Mechanics. ASCE, 2003, 129(10): 1138-1148.

Researcher : Chen YH

Project Title:	The development of a haptic-based dynamic geometric design model
Investigator(s):	Dr. Chen Y.H.
Department:	Mechanical Engineering
Source(s) of Funding:	Block Grant Earmarked for Research
Start Date:	10/2002
Completion Date:	09/2003

Abstract:

To investigator a haptic interface based on a dynamic geometric design model.

Project Title:	Haptic sculpting of computer generated holography (CGH) for conceptual design
Investigator(s):	Dr. Chen Y.H.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	11/2002

Abstract:

This project will investigate some major issues in developing a 3D haptic interaction system based on Computer Generated Holography (CGH). CGH is the only 3D display technology supplying the 3d depth cues used by human visual system. The study will look into 3 major issues: 1) developing data reduction schemes for CGH visualization; 2) building a simplied dynamic model for the interaction between a haptic device and a 3d solid model; and 3) the volumetric models from haptic sculpting will be converted to StereoLithography (STL) files from which physical prototypes can be built using rapid prototyping techniques.

Project Title:	Haptic shape modeling based on simulated machining processes
Investigator(s):	Dr. Chen Y.H.
Department:	Mechanical Engineering
Source(s) of Funding:	RGC Projects (Block Grant Funded)
Start Date:	07/2003

Abstract:

Machining processes, in particular the milling process are used for both rough material removal and fine surface finish, thus using haptic machining processes for shape modeling can produce objects with both rough surfaces and fine surfaces. The proposed research is intended to develop a haptic shape modeling system based on machining processes.

List of Research Outputs

Chen Y.H. and Yang Z., Copy and paste the geometry of physical objects into computer-aided design models, Proceeding of 5th International Conference on Computer Aided Industrial Design and Conceptual Design. Hangzhou, China, 2003, 338-347.

Chen Y.H. and Gibson I., Guest Editors, Integrated Manufacturing Systems - The International Journal of Manufacturing Technology Management. EMERALD, 2003, 14(7): p.553.

Chen Y.H. and Yang Z., Haptic modeling as an integrating tool for product development, Proceedings of 19th International Conference on CAD/CAM Robotics and Factory of the Future. Kuala Lumpur, Malaysia, 2003, 1: 304-310.

Chen Y.H. and Yang Z., Haptic rendering based on spatial run-length encoding, Robotics and Computer-Integrated Manufacturing. Elsevier, 2003, 20: 237-246.

Chen Y.H., Wang Y.Z. and Yang Z., Towards a haptic virtual coordinate measuring machine, International Journal of Machine Tools & Manufacture. Elsevier, 2004, 44: 1009-1017.

Yang Z. and Chen Y.H., Haptic rendering of milling, Eurohaptics 2003. Dublin, Ireland, 206-217.

Yang Z., Chen Y.H. and Sze W.S., Using AHP and Fuzzy sets to determine the build orientation in layer-based machining, International Journal Computer Integrated Manufacturing. Taylor & Francis Ltd., 2003, 16(6): 398-408.

Researcher : Cheng WK

List of Research Outputs

Leung M.K.H., Leung Y.C. and Cheng W.K., Report on Energy Survey at Hong Kong Institute of Vocational Education Tuen Mun Campus. 2003, 1-48.

Researcher : Cheung KC

Project Title:	A study on the use of fuel cells as replacement for lead-acid batteries in solar-based electrical power generation
Investigator(s):	Dr. Cheung K.C.
Department:	Mechanical Engineering
Source(s) of Funding:	Block Grant Earmarked for Research
Start Date:	11/2001

Abstract:

To address the following issues: (1) the performance of small sized (in the order of kilowatts) fuel cells under varying d.c. and a.c. loads; (2) the feasibility of using water electrolysis as a means to store surplus solar-generated electrical power, especially under the climatic condition of hong Kong in which days of overcast follow days of sunny spells.

Project Title:	A study on solar-powered water electrolysis for hydrogen production
Investigator(s):	Dr. Cheung K.C.
Department:	Mechanical Engineering
Source(s) of Funding:	Block Grant Earmarked for Research
Start Date:	11/2002

Abstract:

To study the use of solar panels to generate electrical power for water electrolysis.

Researcher : Cheung WL

Project Title:	Feasibility study on development of self-reinforced composites from recycled PET and PP
Investigator(s):	Dr. Cheung W.L.
Department:	Mechanical Engineering
Source(s) of Funding:	Block Grant Earmarked for Research
Start Date:	07/1998

Abstract:

To develop a self-reinforced microfibrillar polymer blend for load bearing applications from polyethylene terephthalate (PET) and polypropylene (PP). Utimately, it aims to develop a technology for recycling PET and PP, and to reduce the amount of plastic waste to be buried in landfills.

Project Title:	Feasibility study on development of self-reinforced composites from recycled PET and PP
Investigator(s):	Dr. Cheung W.L.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	07/1998

Abstract:

Project Title:	Laser energy absorption properties of polymer based composite powders for selective laser sintering
Investigator(s):	Dr. Cheung W.L., Dr. Gibson I.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	09/2003

Abstract:

To study relations between the characteristics of existing single polymer powders and the laser absorption properties of the powder bed; to study the effects of glass micro-spheres with different surface treatments, on the laser energy absorption properties; to carry out theoretical modelling of the laser energy absorption coefficient of the powder bed; to study sintering behaviours of the different powder systems and correlating the sintering behaviours with the energy absorption and rheological properties of the materials.

Project Title:	Laser energy absorption properties of polymer based composite powders for selective laser sintering
Investigator(s):	Dr. Cheung W.L., Dr. Gibson I.
Department:	Mechanical Engineering
Source(s) of Funding:	RGC Projects (Block Grant Funded)
Start Date:	09/2003

Abstract:

List of Research Outputs

Lin X. and Cheung W.L., Study on PET/PP microfibrillar composites. I. morphological development in melt extrusion, Journal of Applied Polymer Science. Wiley, 2003, 88: 3199-3109.

Lin X., Jia D., Leung F.K.P. and Cheung W.L., Study on poly(ethylene terephthalate)/polypropylene microfibrillar composites. II. solid-state drawing behavior, Journal of Applied Polymer Science. Wiley, 2004, 93: 1989-2000.

Researcher : Ching WH

List of Research Outputs

Ching W.H., Leung M.K.H. and Leung Y.C., Solar photocatalytic degradatio of gaseous formaldehyde by sol-gel TiO₂ thin film for enhancement of indoor air quality, Solar Energy. Elsevier, 2004, 77(2): 129-135.

Researcher : Chow KW

Project Title:	A study on higher order nonlinear effects in hydrodynamical and optical solitons
Investigator(s):	Dr. Chow K.W.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	11/2000

Abstract:

To study, by constructing simple models, the leading order approximation of higher order nonlinear effects. Analogies, as well as differences, between hydrodynamics and nonlinear optics will be examined in the course of the investigation.

Project Title:	The dynamics and propagation of nonlinear waves in interacting wavepackets systems
Investigator(s):	Dr. Chow K.W., Prof. Grimshaw R.H.J.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	11/2002

Abstract:

The project attempts to understand the dynamics and propagation of weakly nonlinear wavepackets in physical and engineering systems. In particular, the focus is on the case where there are two or more modes of waveguides in the system. Simple dynamical models in fluid dynamics and optics will be employed as examples.

Project Title:	Modulated waves and their applications to hydrodynamics and optics
Investigator(s):	Dr. Chow K.W., Dr. Maruno K.I., Prof. Oikawa M.
Department:	Mechanical Engineering
Source(s) of Funding:	RGC Projects (Block Grant Funded)
Start Date:	07/2003

Abstract:

The propagation and properties of nonlinear waves in physical and engineering systems have been studied intensively. Among the various applications, the fields of hydrodynamics and optics are chosen here to illustrate the fundamental principles. A soliton (or solitary wave) is a localized wave which propagates over long distance as a result of a balance between nonlinearity and dispersion. Special families of solitary waves are employed to model weakly nonlinear surface gravity waves in hydrodynamics, and the transmission of solitons along fibers in nonlinear optics.

List of Research Outputs

Chow K.W. and Mak C.C., (2+1) dimensional wave patterns of the Davey-Stewartson system, Journal of the Physical Society of Japan. The Physical Society of Japan, 2003, 72: 3070-3074.

Chow K.W., Tsang S.C. and Mak C.C., Another exact solution for two-dimensioinal, inviscid sinh Poisson vortex arrays, Physics of Fluids. American Institute of Physics, 2003, 15(8): 2437-2440.

Chow K.W. and Lai D.W.C., Periodic solutions for systems of coupled nonlinear Schrödinger equations with three and four components, Physical Review E. The American Physical Society, 2003, 68: 017601-1 to 017601-4.

Chow K.W., Rational function representations of wave patterns in higher-dimensional and discrete evolution equations, Physics Letters A. Elsevier, 2004, 326: 404-411.

Lai D.W.C., Chow K.W. and Nakkeeran K., Multiple-pole soliton interactions in optical fibres with higher-order effects, Journal of Modern Optics. Taylor & Francis, 2004, 51(3): 455-460.

Tsang S.C., Chiang K.S. and Chow K.W., Soliton interaction in a two-core optical fiber, Optics Communications. Elsevier, 2004, 229: 431-439.

Researcher : Choy HS

List of Research Outputs

Choy H.S. and Chan K.W., Modeling cutter swept angle at cornering cut, International Journal of CAD/CAM. Seoul, Korea, Society of CAD/CAM Engineers, 2003, 3(1): 1-12.

Researcher : Choy KY

List of Research Outputs

Choy K.Y. and Chan C.W., Modelling of river discharges and rainfall using radial basis function networks based on support vector regression, International Journal of Systems Science. UK, Taylor & Francis Ltd., 2003, 34(14-15): 763-773.

Choy K.Y., On modelling using radial bass function networks with structure determined by support vector regression, M.Phil.. Hong Kong, The University of Hong Kong, 2004, 1-107.

Researcher : Chwang ATY

Project Title:	Unsteady free-surface far wake generated by a body moving in a viscous fluid
Investigator(s):	Prof. Chwang A.T.Y.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	10/1997

Abstract:

To develop analytical models for the generation, dispersion and dissipation of the free-surface far wake. These solutions will be employed as foundations to obtain solutions for other systems of practical importance such as the interaction of these wakes created by several moving bodies or the wake in non-uniform bottom topographies.

Project Title:	Effects of navigation and reclamation on waves in Victoria Harbour
Investigator(s):	Prof. Chwang A.T.Y.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	12/2000
Completion Date:	11/2003

Abstract:

To develop a numerical model to predict the wave climate in Victoria Harbour under the influence of ship navigation and land reclamation, and to provide general guidance for the optimisation of both reclamation and fairway planning. The knowledge acquired will be useful for improving the current condition of the harbour and to optimise the design of future harbours as well.

Project Title:	Theoretical modeling and numerical simulation of nanofluid dynamics
Investigator(s):	Prof. Chwang A.T.Y.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	12/2001

Abstract:

To explore the general physics of nanofluids, including the theroetical modeling of nanoflows and the numerical simulation of nanofluid dynamics; to develop an appropriate theoretical framework through which the general nanofluid dynamical behavior can be studied.

Project Title:	Establishment of a relationship between wrist pulses and cardiovascular conditions
Investigator(s):	Prof. Chwang A.T.Y., Prof. Lau C.P.
Department:	Mechanical Engineering
Source(s) of Funding:	Innovation and Technology Fund, Innovation and Technology Commission of Hong Kong Government
Start Date:	04/2002
Completion Date:	03/2004

Abstract:

To design and construct a non-invasive wrist-pulse sensor; to establish a relationship between wrist pulses and cardiovascular conditions.

Project Title:	Unsteady free-surface far wake generated by a body moving in a viscous fluid
Investigator(s):	Prof. Chwang A.T.Y.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	12/2002

Abstract:

This research is to develop analytical models for the generation, dispersion and dissipation of the unsteady, viscous free-surface far wake. These solutions may be employed as foundations to obtain solutions for other systems of practical importance such as the interaction of these wakes created by several moving bodies.

Project Title:	Development of an efficient non-invasive wrist-pulse sensor
Investigator(s):	Prof. Chwang A.T.Y.
Department:	Mechanical Engineering
Source(s) of Funding:	Block Grant Earmarked for Research
Start Date:	01/2003
Completion Date:	03/2004

Abstract:

To develop a simple yet effective wrist-pulse sensor such as an ultra-sonic sensor, which can be used to take wrist pulses accurately and efficiently in mass screening tests for the general public.

Project Title:	An investigation of hydrodynamic interaction between two bodies
Investigator(s):	Prof. Chwang A.T.Y., Dr. Ren S.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	11/2003

Abstract:

To conduct research analytically as well as numerically on the hydrodynamic interaction between two immersed bodies involving translation, rotation and vibration. Fundamental solutions for three-dimensional non-spherical bodies will be derived by means of transformations of harmonics between two corresponding coordinate systems. Properties and dynamic behavior of a two-body system will be determined by solving the dynamical equations of motion. Experimental verification of some basic analytical and numerical results on the trajectories of floating bodies will also be conducted.

Project Title:	An investigation of hydrodynamic interaction between two bodies
Investigator(s):	Prof. Chwang A.T.Y., Dr. Ren S.
Department:	Mechanical Engineering
Source(s) of Funding:	RGC Projects (Block Grant Funded)
Start Date:	11/2003

Abstract:

Project Title:	Wrist pulse contour screening programme
Investigator(s):	Prof. Chwang A.T.Y., Prof. Lau C.P.
Department:	Mechanical Engineering
Source(s) of Funding:	Block Grant Earmarked for Research
Start Date:	02/2004

Abstract:

To set up a WPC Screening Centre to provide the WPC evaluation service to local adult subjects at the age of 18 years or above.

List of Research Outputs

Chen Y. and Chwang A.T.Y., Particle image velocimetry system with self-organized feature map algorithm, Journal of Engineering Mechanics. ASCE, 2003, 129(10): 1156-1163.

Chwang A.T.Y., Associate Editor, International Journal of Offshore and Polar Engineering. 2004.

Chwang A.T.Y. and Chen Y., Field measurement of ship waves in Victoria Harbor, Journal of Engineering Mechanics. ASCE, 2003, 129(10): 1138-1148.

Chwang A.T.Y., Member of the Advisory Board, Journal of Hydrodynamics. 2004.

Chwang A.T.Y., Member of the Advisory Board, Theoretical and Computational Fluid Dynamcis. 2004.

Chwang A.T.Y., Member of the Editorial Board, China Ocean Engineering. 2004.

Chwang A.T.Y., Member of the Editorial Board, Journal of Marine Science and Technology. 2004.

Chwang A.T.Y., Member of the Editorial Board, Journal of Mechanical Engineering Science. 2004.

Chwang A.T.Y., Member of the Editorial Board, Wave Motion. 2004.

Li M. and Chwang A.T.Y., Molecular simulation of micro-nano fluid dynamics, HKIE Transactions. 2003, 10(4): 62-66.

Lu D. and Chwang A.T.Y., Interfacial ship waves in two-fluid systems, In "Recent Advances in Fluid Mechanics: Proceedings of the Fourth International Conference on Fluid Mechanics" (eds. Fenggan Zhuang and Jiachun Li). Beijing, Tsinghua University Press, 2004, 292-295.

Lu D. and Chwang A.T.Y., Transient free-surface waves due to a suddenly stopping body, Asian and Pacific Coasts 2003, Proceedings of the Second International Conference. Makuhari, Japan, 2003, APAC021, 1-9.

Miao Q.M., Xia J., Chwang A.T.Y. and Duffy J., Numerical study of bank effects on a ship traveling in a channel, Proceedings of the 8th International Conference on Numerical Ship Hydrodynamics. Busan, Korea, 2003, 266-273.

Miao Q.M. and Chwang A.T.Y., Ship waves by direct boundary element method, Journal of Ship Mechanics. 2003, 7(6): 27-36.

Ng C.O., Huang L. and Chwang A.T.Y., Mass transport of non-Newtonian mud under periodic pressure forcing, Proceedings of EM2003, the Sixteenth ASCE Engineering Mechanics Conference. Seattle, USA, University of Washington, 2003, CD-ROM, 12 pp.

Sun R. and Chwang A.T.Y., Planar motion of a slightly distorted circular cylinder around another circular one, Journal of Hydrodynamics Ser. B. 2004, 16(2): 136-143.

Zhang D., Yip T.L. and Chwang A.T.Y., Numerical simulation of ship-generated waves and ocean swells in a harbour, Proceedings of XXX IAHR Congress, Theme A – Coastal Environment: Processes and Integrated Management. Thessaloniki, Greece, 2003, 347-354.

Researcher : Duggan BJ

Project Title:	A TEM/STEM investigation of the development of rolling deformation microstructure in low carbon and IF steel
Investigator(s):	Prof. Duggan B.J.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	01/2000
Completion Date:	12/2003

Abstract:

To attempt to understand the origins of well known microstructural features found in low carbon and IF steels as they develop during room temperature rolling.

Project Title:	Development of an Al-Mg alloy system and thermo mechanical processing route for improved drawability
Investigator(s):	Prof. Duggan B.J., Prof. Inagaki H.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	08/2001

Abstract:

To investigate the interactions between alloy chemistry (i.e. Mg additions to A1), the rate and degree of rolling and final annealing textures. The goal is to produce strong, randomly textured sheet suitable for forming into automobile body panels.

Project Title:	The plastic formability of alloys of the magnesium-lithium family; a preliminary in investigation involving alloy development, thermo-mechanical processing and characterisation
Investigator(s):	Prof. Duggan B.J., Dr. Chen Q.Z., Prof. Xu Y.B.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	11/2002

Abstract:

The project is to try to develop two families of alloys based on magnesium and lithium which present knowledge indicates could make a useful characteristics capable of being used in motor cars. The goals are to make a useful superplastic alloy based on the hexagonal atomic packing structure and a material based on the body centred cubic structures which has good drawability. In both cases the form of the final product will be thin sheet metal that can be used in pressing desired shapes from a blank.

Project Title:	The formation of secondary recrystallisation texture in Fe^-3% Si
Investigator(s):	Prof. Duggan B.J., Prof. Penelle R.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	07/2003

Abstract:

To investigate by transmission and high resolution scanning electron microscopy, the processes by which the Goss Texture, {110}<001> is formed in Fe^-3% Si during secondary recrystallisation.

Project Title:	The formation of secondary recrystallisation texture in Fe^-3% Si
Investigator(s):	Prof. Duggan B.J., Prof. Penelle R.
Department:	Mechanical Engineering
Source(s) of Funding:	RGC Projects (Block Grant Funded)
Start Date:	07/2003

Abstract:

To investigate by transmission and high resolution scanning electron microscopy, the processes by which the Goss Texture, {110}<001> is formed in Fe^-3% Si during secondary recrystallisation.

List of Research Outputs

Chang S.T.C., Inagaki H. and Duggan B.J., Reducing cube volume in recrystallized texture by controlling the finishing temperature adn rolling strain in Al-5%Mg alloy, In: Eds: T. Chandra, J.M. Torralba, T. Sakai, International Conference on Processing & Manufacturing of Advanced Materials (THERMEC'2003). Madrid, Spain, Materials Science Forum, 2003, 426-432: 3763-3768.

Chen Q.Z. and Duggan B.J., The formation of microstructures in cold rolled interstitial-free steel, Physics of Metals and Metallography. USA, Interperiodica, 2003, 96: S16-S27.

Duggan B.J. and Tse Y.Y., Crystal growth in deformed metals by an impingement and spheroidisation process, Acta Materialia. Elsevier, 2004, 52: 387-393.

Duggan B.J., Lam K.T.G. and Quadir M.Z., Increasing desirable recrystallization texture in IF steel by controlled rolling, In: Eds: T. Chandra, J.M. Torralba, T. Sakai, International Conference on Processing & Manufacturing of Advanced Materials (THERMEC'2003). Madrid, Spain, Materials Science Forum, 2003, 426-432: 3745-3750.

Duggan B.J., Modern automobiles - what's under the paint?, The Hong Kong Institution Engineers Transactions. Hong Kong, HKIE, 2003, 10(4): 27-30.

Duggan B.J., Tse Y.Y., Lam K.T.G., Hua N. and Quadir M.Z., The body in white: automobiles, steel and aluminium, Proceedings of the 2nd International Conference on Structure, Processing and Properties of Materials (SPPM2004). Dhaka, Bangladesh, BUET, 2004, 24-35.

Quadir M.Z. and Duggan B.J., A microstructural study of warm roled interstitial free steel, Proceeding of the 2nd International Conference on Structure, Processing and Properties of Materials (SPPM2004). Dhaka, Bangladesh, BUET, 2004, 443-452.

Quadir M.Z., Lam K.T.G. and Duggan B.J., A rolling-annealing cycle for enhanced deep drawing properties in IF steels, Proceedings of the Institution of Mechanical Engineers: Part C: Journal of Mechanical Engineering Science. London, UK, 2004, 218(6): 631-639.

Quadir M.Z. and Duggan B.J., Shear band formation in warm rolled IF steel, In: Eds: T. Chandra, J.M. Torralba, T. Sakai, International Conference on Processing & Manufacturing of Advanced Materials (THERMEC'2003). Madrid, Spain, Materials Science Forum, 2003, 426-432: 3769-3774.

Researcher : Fan KM

List of Research Outputs

Fan K.M., Heat transfer properties and fusion behaviour of polymer based composite poweders in selective laser sintering, Ph.D. Thesis. Hong Kong, The University of Hong Kong, 2004, 1-193.

Researcher : Gao Z

List of Research Outputs

Gao Z. and Gibson I., Haptics-based 3D B-spline Curve Sketch using multi-resolution and two-handed techniques, Proceedings Eurohaptics 2004. Munich, Germany, 371-376.

Gibson I. and Gao Z., Virtual prototyping and rapid prototyping-similarities and differences, 1st International Conference on Advanced Research in Virtual and Rapid Prototyping. Leiria, Portugal, 2003, 97-107.

Researcher : Gibson I

Project Title:	Functionally graded part fabrication based on the SLS process
Investigator(s):	Dr. Gibson I., Dr. Cheung W.L.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	09/2000

Abstract:

The project proposes that one rapid prototyping (RP) process, Selective Laser Sintering (SLS), can be modified to create functionally graded components. Studies will concentrate on development of materials, process parameter setting and control, and establishing part performance criteria to correlate with suitable applications.

List of Research Outputs

Chen Y.H. and Gibson I., Guest Editors, Integrated Manufacturing Systems - The International Journal of Manufacturing Technology Management. EMERALD, 2003, 14(7): p.553.

Gao Z. and Gibson I., Haptics-based 3D B-spline Curve Sketch using multi-resolution and two-handed techniques, Proceedings Eurohaptics 2004. Munich, Germany, 371-376.

Gibson I., Regional editor and Co-editor, Rapid Prototyping Journal. Emerald Group Publishing Ltd., 2004, 10(4): p.217.

Gibson I. and Gao Z., Virtual prototyping and rapid prototyping-similarities and differences, 1st International Conference on Advanced Research in Virtual and Rapid Prototyping. Leiria, Portugal, 2003, 97-107.

Zheng J., Chan K.W. and Gibson I., Constrained deformation of freeform surfaces using surface features for interactive design, International Journal of Adavenced Manufacturing Technology. UK, Springer-Verlag London Ltd., 2003, 22: 54-67.

Researcher : Ho WM

List of Research Outputs

Liu C.H., Ho W.M. and Ng C.O., A numerical study on turbulent oscillatory plane Couette flow, Proceedings of the 17th National Conference on Hydrodynamics and the 6th National Congress on Hydrodynamics, Shenzhen and Hong Kong. Beijing, China, China Ocean Press, 2004, 308-314.

Researcher : Huang L

List of Research Outputs

Ng C.O., Huang L. and Chwang A.T.Y., Mass transport of non-Newtonian mud under periodic pressure forcing, Proceedings of EM2003, the Sixteenth ASCE Engineering Mechanics Conference. Seattle, USA, University of Washington, 2003, CD-ROM, 12 pp.

Researcher : Hui SCM

List of Research Outputs

Hui S.C.M., Effective use of building energy simulation for enhancing building energy codes, Proceedings of the IBPSA Building Simulation 2003 Conference. Eindhoven, Netherlands, International Building Performance Simulation Association, 2003, 8pp.

Hui S.C.M., Impact of performance-based building energy code, ELENEX 2004 / Building Technologies 2004 Technical Seminar Enhanced Building Technologies. Hong Kong, Hong Kong Institution of Engineers, 2004, 9pp.

Hui S.C.M., Solar energy development in Hong Kong and its implications to energy market reform, International Conference on "Energy Market Reform: Issues & Problems" (Second Asian Energy Conference), Special Session on Renewable Energy Development in Hong Kong and China. Hong Kong, Hong Kong Baptist University, 2003, 8pp.

Researcher : Kong Y

List of Research Outputs

Chen Q.Z., Kong Y., Jones C.N. and Knowles D.M., Porosity reduction by minor additions in RR2086 superalloy, Scripta Materialia. Oxford, UK, Elsevier Science Ltd., 2004, 52: 155-160.

Kong Y. and Chen Q.Z., Effect of minor additions on the formation of TCP phases in modified RR2086 SX superalloys, Materials Science & Engineering A. Lausanne, Switzerland, Elsevier Science Ltd., 2004, A366: 135-143.

Researcher : Kou X

List of Research Outputs

Kou X. and Tan S.T., Representation and visualization for heterogeneous CAD models, International CAD Conference. Pattaya, Thailand, 2004, p1-7.

Researcher : Kung CY

List of Research Outputs

Kung C.Y., Ph.D. Thesis, Fuzzy Genetic Modelling of Air-Conditioning Systems for Fault Detection and Diagnosis. Hong Kong, The University of Hong Kong, 2004, 1-331.

Researcher : Lai KK

List of Research Outputs

So E.S.P., Chan A.T.Y. and Lai K.K., Large eddy simulation of pollutant dispersiion in an urban street canyon under different geometric configuratioin, Proceedings of 17th ASCE Engineering Mechanics Conference. Newark, USA, University of Delaware, 2004, 254: 8pp.

Researcher : Lam HN

Project Title:	Hybrid solar/wind systems employing photovoltaic cells and small-scale wind turbines for buildings in Hong Kong
Investigator(s):	Mr. Lam H.N.
Department:	Mechanical Engineering
Source(s) of Funding:	Block Grant Earmarked for Research
Start Date:	11/2001
Completion Date:	10/2003

Abstract:

To investigate the design of hybrid solar and wind systems for electricity generation in buildings and the implementation of such systems in the urban areas of Hong Kong.

Project Title:	Innovative design of centralised water-cooled air-conditioning systems based on desiccant technology
Investigator(s):	Mr. Lam H.N.
Department:	Mechanical Engineering
Source(s) of Funding:	Block Grant Earmarked for Research
Start Date:	11/2002

Abstract:

To investigate the innovative design of centralised water-cooled air-conditioning systems based on desiccant technology so that the use of evaporative cooling towers can be eliminated along with the eradication of Legionnaires' Disease while enjoying a higher efficiency offered by the water-cooled rather than air-cooled arrangement.

Project Title:	Fuzzy modelling and control of indoor air quality
Investigator(s):	Mr. Lam H.N., Dr. Leung M.K.H., Dr. Wong C.M.
Department:	Mechanical Engineering
Source(s) of Funding:	RGC Projects (Block Grant Funded)
Start Date:	07/2003

Abstract:

To develop optimised fuzzy models for the indoor air quality based on comfort and health considerations and to evaluate the application potentials of these models for establishing alternative air quality or pollution indices which are resemblant to human perception and applicable to indoor air quality control for maximum energy cost saving.

Project Title:	Geothermal heat pump systems for central cooling and heating of buildings in Hong Kong
Investigator(s):	Mr. Lam H.N.
Department:	Mechanical Engineering
Source(s) of Funding:	Block Grant Earmarked for Research
Start Date:	11/2003

Abstract:

To investigate the detailed performance of a geothermal heat pump system for central cooling and heating of buildings under Hong Kong climatic conditions and to analyse the economic benefits and the potentials for enegy conservation and environmental protection.

List of Research Outputs

Hung C.Y.S. and Lam H.N., Pressure loss characteristics of thin single-blade flat dampers for square airflow branch ducts, HVAC&R Research. Atlanta, GA, USA, ASHRAE, 2003, 9(3): 327-345.

Researcher : Lam J

Project Title:	A multi-performance approach to reliable control for dynamic systems subject to faults and saturation
Investigator(s):	Dr. Lam J., Dr. Wang J.L., Dr. Yang G.H.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	09/2001

Abstract:

To develop of mathematical conditions: a) locally, semi-globally and globally reliable state feedback control results; b) reliable dynamic output feedback controller design; to construct numerical algorithms: a) single and/or multiple-step algorithms for designing reliable controllers to enhance the stability region subject to specified nominal and acceptable performances; b) algorithms for designing reliable controllers to enhance the nominal performance subject to a fixed stability region and a fixed accepptable performance; to generalize results: a) reliable control of delay (retarded and neutral type) systems, and nonlinear systems; b) reliable controller design with system uncertainties.

Project Title:	Robust filtering of markovian jump delay systems
Investigator(s):	Dr. Lam J., Dr. Wang Z.D., Dr. Xu S.Y.
Department:	Mechanical Engineering
Source(s) of Funding:	Block Grant Earmarked for Research
Start Date:	11/2001
Completion Date:	10/2003

Abstract:

To analyse the stochastic stability of the filter systems; to design robust filters to meet stability and performance requirements via efficient numerical algorithms; to extend the results to nonlinear stochastic delay systems.

Project Title:	Approximation of dynamic systems with impoved time and frequency-domain objectives
Investigator(s):	Dr. Lam J., Dr. Liu W.Q.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	10/2002

Abstract:

In this project, the research team will study and develop model and controller approximation for both general and specific classes of dynamic systems with linear and nonlinear characteristics. Attention will be given to develop more appropriate time-domain and frequency-domain approximation performance measures. The continuous-time and discrete-time cases wil also be addressed.

Project Title:	Advanced observer-based fault detection schemes for uncertain systems
Investigator(s):	Dr. Lam J., Prof. Ding S.X., Prof. Zhong M.Y.
Department:	Mechanical Engineering
Source(s) of Funding:	Block Grant Earmarked for Research
Start Date:	11/2002

Abstract:

To study new observer design approaches for certain classes of time-delay systems; to design fault detection observers for uncertain systems which meet robustness and sensitivity specifications; to study new methods of evaluating the influence of modeling error and unknown inputs and, based on them, to develop a strategy for an optimal setting of the threshold, to construct computation procedures for the integrated design of fault detection systems including both the observer-based residual generator and threshold.

Project Title:	Stability and synthesis of complex multidimensional systems with applications to repetitive processes
Investigator(s):	Dr. Lam J., Prof. Galkowski K., Prof. Rogers E., Dr. Xu S.Y.
Department:	Mechanical Engineering
Source(s) of Funding:	RGC Projects (Block Grant Funded)
Start Date:	07/2003

Abstract:

To extend the stability theories and associated computations; to develop stabilization-with-performance control; to investigate computational implementation and application to repetitive processes.

Project Title:	Stability analysis and controller synthesis for netwrok-based systems
Investigator(s):	Dr. Lam J., Prof. Xu S.Y.
Department:	Mechanical Engineering
Source(s) of Funding:	Block Grant Earmarked for Research
Start Date:	02/2004

Abstract:

To develop robust synthesis techniques to improve the performances and service quality in network-based control.

List of Research Outputs

Cao Y.Y., Lam J. and Hu L.S., Delay-dependent stochastic stability and H_¥ analysis for time-delay systems with Markovian jumping parameters, Journal of the Franklin Institute. Elsevier, 2003, 340(6-7): 423-434.

Chen B., Lam J. and Xu S., New observed-based guaranteed cost control for neutral delay systems, Journal of Systems and Control Engineering. IMechE, 2004, 218(3): 227-235.

Du H.P., Lam J. and Sze K.Y., Non-fragile H_¥ vibration control for uncertain structural systems, Journal of Sound and Vibration. Elsevier, 2004, 273(4): 1031-1045.

Du H.P., Lam J. and Sze K.Y., Non-fragile output feedback H_¥ vehicle suspensioin control using genetic algorithm, Engineering Applications of Artificial Intelligence. Elsevier, 2003, 16: 667-680.

Duan G.R., Lam J. and Liu G.P., Robust eigenvalue assignment in descriptor systems via output feedback, Asian Journal of Control. 2004, 6(1): 145-154.

Galkowski K., Lam J., Xu S. and Lin Z., LMI approach to stability analysis of three-dimensional systems, Bulletin of the Polish Academy of Sciences. 2003, 51(4): 362-379.

Galkowski K., Lam J., Rogers E., Xu S., Sulikowski B., Paszke W. and Owens D.H., LMI based stability analysis and robust controller design for discrete linear repetitive processes, International Journal of Robust and Nonlinear Control. John Wiley & Sons, Ltd., 2003, 13(13): 1195-1211.

Galkowski K., Paszke W., Rogers E., Xu S., Lam J. and Owens D.H., Stability and control of differential linear reptitive processes using LMI setting, IEEE Transactions on Circuits & Systems II. 2003, 50(9): 662-666.

Gao H., Lam J., Wang C. and Xu S., H_¥ model reduction for discrete time-delay systems: Delay independent and dependent approaches, International Journal of Control. Taylor & Franics Ltd., 2004, 77(4): 321-335.

Gao H., Lam J., Wang C.H. and Xu S., Robust H_¥ filtering for 2-D stochastic systems, Proceedings of American Control Conference 2004. Boston, USA, 2475-2480.

Gao H., Lam J., Wang C. and Wang Y., Stability analysis of uncertain discrete-time systems with time-varying state delay, Proceedings of 2003 Chinese Intelligent Automation Conference. Hong Kong, 2003, 257-263.

Hu T., Lin Z. and Lam J., Unified gradient approach to performance optimization under pole assignment constraint, Journal of Optimization Theory & Applications. Plenum Publishing Corporation, 2004, 121(2): 361-383.

Huang H., Ho D.W.C. and Lam J., Stability analysis of stochastic fuzzy hopfield neural networks with time delays, Proceedings of 2003 Intelligent Automation Conference. Hong Kong, 2003, 1: 70-74.

Niu Y., Lam J., Wang X. and Ho D.W.C., Observer-based sliding mode control for nonlinear state-delay systems, International Journal of Systems Science. Taylor & Francis, 2004, 35(2): 139-150.

Niu Y., Lam J. and Wang X., Sliding mode control for uncertain neutral delay systems, IEE Proceedings: Control Theory & Applications. 2004, 151(1): 38-44.

Paszke W., Lam J., Galkowski K., Xu S. and Rogers E., H_¥ control of 2D state-delayed systems in FM form, Proceedings of IFAC Workshop on Time-Delay Systems. Rocquencourt, France, 2003, 6 pp.

Paszke W., Lam J., Galkowski K., Xu S. and Lin Z., Robust stability and stabilization of 2D time-delay systems, Systems and Control Letters. Elsevier, 2004, 51(3-4): 277-291.

Wang H., Wang J. and Lam J., An optimization approach for worst-case fault detection observer design, Proceedings of American Control Conference 2004. Boston, USA, 3158-3163.

Wang H.B., Wang J., Liu J. and Lam J., Iterative LMI approach for robust fault detection observer design, Proceedings of IEEE Conference on Decision & Control. Hawaii, USA, 2003, 1974-1979.

Wang Q., Lam J., Xu S. and Zhang Q., Delay-dependent H_¥ model reduction for time-varying delay systems, Proceedings of 2003 Intelligent Automation Conference. Hong Kong, 2003, 1: 345-350.

Wang Z., Lam J. and Liu X., Exponential filtering for uncertain markovian jump time-delay systems with nonlinear disturbances, IEEE Transactions on Circuits and Systems I. IEEE, 2004, 51(5): 262-268.

Wang Z. and Lam J., Nonlinear filtering for state delayed systems with markovian switching, IEEE Transactions on Signal Processing. 2003, 51(9): 2321-2328.

Xu S., Lam J., Ho D.W.C. and Zou Y., Global robust exponential stability analysis for interval recurrent neural networks, Physics Letters A. Elsevier, 2004, 325/2: 124-133.

Xu S., Lam J. and Zou Y., H_¥ filtering for singular systems, IEEE Transactions on Automatic Control. 2003, 48(12): 2217-2222.

Xu S., Lam J., Liu W.Q. and Zhang Q.L., H_¥ model reduction for singular systems: continuous-time case, IEE Proceedings Control Theory & Applications. 2003, 150(6): 637-641.

Xu S., Lam J., Wang J.L. and Yang G.H., Non-fragile positive real control for uncertain linear neutral delay systems, Systems and Control Letters. Elsevier, 2004, 52: 57-74.

Xu S. and Lam J., On H_¥ filtering for a class of uncertain nonlinear neutral systems, Circuits, Systems, and Signal Processing. Birkhäuser Boston, 2004, 23(3): 215-230.

Xu S., Lam J. and Zou Y., Robust H_¥ control for a class of discrete-time nonlinear systems with state delay and parameter uncertainty, Proceedings of 2003 Intelligent Automation Conference. Hong Kong, 2003, 1: 379-383.

Xu S., Lam J. and Chen T., Robust H_¥ control for uncertain discrete stochastic time-delay systems, Systems and Control Letters. Elsevier, 2004, 51(3-4): 203-215.

Xu S., Lam J. and Yang C., Robust H_¥ control for uncertain singular systems with state delay, International Journal of Robust and Nonlinear Control. John Wiley & Sons, Ltd., 2003, 13(13): 1213-1223.

Xu S., Lam J. and Yang C., Robust stability analysis for descriptor systems with state delay and parameter uncertainty, ADCHEM2003. Hong Kong, 2004, 5 pp.

Xu S. and Lam J., Robust stability and stabilization of discrete singular systems: An equivalent characterization, IEEE Transactions on Automatic Control. IEEE, 2004, 49(4): 568-574.

Xu S. and Lam J., Robust stability for uncertain discrete singular systems with state delay, Asian Journal of Control. 2003, 5(3): 399-405.

Yue D., Lam J. and Ho D.W.C., Reliable H_¥ control of uncertain descriptor systems with multiple time delays, IEE Proceedings D. Control Theory and Applications. 2003, 160(6): 557-564.

Yue D. and Lam J., Reliable memory feedback design for a class of nonlinear time-delay systems, International Journal of Robust & Nonlinear Control. John Wiley & Sons, Ltd., 2004, 14(1): 39-60.

Zhang L., Huang B. and Lam J., Robust guaranteed cost control of descriptor systems, Dynamics of Continuous, Discrete and Impulsive Systems Series B Applications & Algorithms. 2003, 10(5): 633-646.

Zhang L.Q., Huang B. and Lam J., H_¥ model reduction of markovian jump linear systems, Systems and Control Letters. Elsevier, 2003, 50(2): 103-118.

Zhang L.Z., Huang B. and Lam J., LMI synthesis of H₂ and mixed H₂/H_¥ controllers for singular systems, IEEE Transactions on Circuits & Systems II. 2003, 50(9): 615-626.

Zhong M.Y., Ding S.X., Lam J. and Zhang C., Fault detection filter design for LTI systems with time delays, Proceedings of IEEE Conference on Decision & Control. Hawaii, USA, 2003, 1467-1472.

Zhou S., Lam J. and Xu S., Robust H_¥ control for discrete-time polytopic uncertain systems with linear fractional vertices, Journal of Control Theory and Applications. 2004, 2(1): 75-81.

Zhou S. and Lam J., Robust stabilization of delayed singular systems with linear fractional parametric uncertainties, Circuits, Systems & Signal Processing. Birkhäuser Boston, 2003, 22(6): 579-588.

Researcher : Lam KTG

List of Research Outputs

Duggan B.J., Lam K.T.G. and Quadir M.Z., Increasing desirable recrystallization texture in IF steel by controlled rolling, In: Eds: T. Chandra, J.M. Torralba, T. Sakai, International Conference on Processing & Manufacturing of Advanced Materials (THERMEC'2003). Madrid, Spain, Materials Science Forum, 2003, 426-432: 3745-3750.

Duggan B.J., Tse Y.Y., Lam K.T.G., Hua N. and Quadir M.Z., The body in white: automobiles, steel and aluminium, Proceedings of the 2nd International Conference on Structure, Processing and Properties of Materials (SPPM2004). Dhaka, Bangladesh, BUET, 2004, 24-35.

Quadir M.Z., Lam K.T.G. and Duggan B.J., A rolling-annealing cycle for enhanced deep drawing properties in IF steels, Proceedings of the Institution of Mechanical Engineers: Part C: Journal of Mechanical Engineering Science. London, UK, 2004, 218(6): 631-639.

Researcher : Lee KL

List of Research Outputs

Fang D.N., Zhang Z.K., Soh A.K. and Lee K.L., Fracture criteria of piezoelectric ceramics with defects, Mechanics of Materials. UK, Elsevier, 2004, 36: 917-928.

Lee K.L., Soh A.K. and He P.F., Fatigue failure of ferroelectric ceramics subjected to cyclic inclined electric loading, Scripta Materialia. UK, Elsevier, 2003, 49(9): 849-854.

Lee K.L., Soh A.K., Fang D.N. and Liu J.X., Fracture behavior of inclined elliptical cavities subjected to mixed-mode I and II electro-mechanical loading, Theoretical and Applied Fracture Mechanics. UK, Elsevier, 2004, 41(1-3): 125-135.

Soh A.K., Lee K.L., Liu J.X. and Fang D.N., Behavior of a moving Griffith crack in piezoelectric ceramics, Mechanics of Electromagnetic Solids. Massachusetts, USA, Kluwer Academic Publishers, 2003, 57-72.

Soh A.K., Lee K.L. and Fang D.N., On the effects of an electric field on the fracture toughness of poled piezoelectric ceramics, Materials Science and Engineering A. UK, Elsevier, 2003, 360(1-2): 306-314.

Researcher : Leung FKP

List of Research Outputs

Lin X., Jia D., Leung F.K.P. and Cheung W.L., Study on poly(ethylene terephthalate)/polypropylene microfibrillar composites. II. solid-state drawing behavior, Journal of Applied Polymer Science. Wiley, 2004, 93: 1989-2000.

Researcher : Leung MKH

Project Title:	Theoretical and experimental study of phase change in quasi-steady state due to a moving front heat source followed by a moving-front heat sink
Investigator(s):	Dr. Leung M.K.H., Prof. Hsieh C.K.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	12/2001

Abstract:

To solve the quasi-steady phase change problem due to a moving-front heat source followed by a moving-front heat sink at a constant speed across the surface of the workpiece.

Project Title:	Solar photocatalysis of Sol-Gel Nano-TiO₂ particles for air purification
Investigator(s):	Dr. Leung M.K.H.
Department:	Mechanical Engineering
Source(s) of Funding:	Block Grant Earmarked for Research
Start Date:	10/2002
Completion Date:	09/2003

Abstract:

The application of solar photocatalysis to purification of air will be investigated. Photocatalytic reactors coated with sol-gel thin film of nano-TiO₂ particles will be tested. The parametric studies to be conducted aim to determine the effects of the thin film properties and configuration of the photocatalytic reactor on the air purification performance. The results of this research can be used for system design optimisation to achieve high detoxification and disinfection rates, for both indoor air and outdoor air, in a cost-effective manner.

Project Title:	Indoor air quality control and mitigation measures for printing plants
Investigator(s):	Dr. Leung M.K.H., Dr. Chan A.H.S.
Department:	Mechanical Engineering
Source(s) of Funding:	Occupational Safety and Health Council
Start Date:	03/2003

Abstract:

To study the existing IAQ conditions and develop useful Engineering Control Measures for the printing industry in Hong Kong. A self-assessment software kit will also be developed to facilitate IAQ surveys and audits.

Project Title:	Development of integrated heat pump technology to enhance energy efficiency and indoor air quality
Investigator(s):	Dr. Leung M.K.H., Mr. Lam H.N., Dr. Leung D.Y.C.
Department:	Mechanical Engineering
Source(s) of Funding:	Innovation and Technology Fund, Innovation and Technology Commission of Hong Kong Government
Start Date:	04/2003

Abstract:

To develop the integrated heat pump (IHP) technology for optimal system design and intelligent control resulting in high system performance and minimal life-cycle costs.

Project Title:	Environmental friendly cold water thawing for catering industry
Investigator(s):	Dr. Leung M.K.H.
Department:	Mechanical Engineering
Source(s) of Funding:	Environment and Conservation Fund and Woo Wheelock Green Fund
Start Date:	07/2003

Abstract:

To carry out a Computational Fluid Dynamic (CFD) analysis for the abovementioned defrosting processes and optimise the process parameters, including the position of the frozen meat and flow rate of the town water; to investigate computationally the additional use of a rotating mechanism inside the deforesting water pail to enhance the cold water thawing process; to conduct experimental study to verify the performance of the best cold water thawing process identified from the above analytical investigation; to conduct field test in selected restaurants and collect data to determine the saving in water consumption.

Project Title:	Local exhaust ventilation for protection against nosocomial infection of SARS
Investigator(s):	Dr. Leung M.K.H.
Department:	Mechanical Engineering
Source(s) of Funding:	SARS Research Fund
Start Date:	07/2003

Abstract:

To develop a local exhaust ventilation system that removes droplets and bioaersols effectively so as to reduce the risk of nosocomial SARS infection during the peformance of intubation and surgical procedures for SARS patients.

Project Title:	Development of photocatalytic disinfection technology for air quality improvement
Investigator(s):	Dr. Leung M.K.H., Dr. Leung D.Y.C., Prof. Vrijmoed L.L.P., Dr. Yam W.C.
Department:	Mechanical Engineering
Source(s) of Funding:	Innovation and Technology Fund, Innovation and Technology Commission of Hong Kong Government
Start Date:	04/2004

Abstract:

To design and construct special laboratory test facilities for laboratory air disinfection test services for the industry.

List of Research Outputs

Chan A. and Leung M.K.H., Assessment Report on Industrial Noise, Lighting, and Indoor Air Quality for TNT Express Worldwide (HK) Limited, Submitted to TNT Express Worldwide (HK) Ltd.. 2003, 1-35.

Ching W.H., Leung M.K.H. and Leung Y.C., Solar photocatalytic degradatio of gaseous formaldehyde by sol-gel TiO₂ thin film for enhancement of indoor air quality, Solar Energy. Elsevier, 2004, 77(2): 129-135.

Leung M.K.H., 2003 indoor air quality assessment at market at Heng On Estate, Indoor Air Quality for Hospitals. 2004, 1-7.

Leung M.K.H. and Chan A.H.S., Better hospital indoor air quality, Proceedings fo the Symposium on Legionnaires' Disease and other Respiratory Infections and their Prevention. Hong Kong, 2003, 41-49.

Leung M.K.H., Chan A., Lam P. and Lo W., Control and management of hospital indoor air quality, Proceedings of the XVth Triennial Congress of the International Ergonomics Asociation and the 7th Joint Conference of Ergonomics Society of Korea/Japan Ergonomics Soceity. Seoul, 2003, 4pp.

Leung M.K.H., Liu C.H. and Chan A., Indoor Air Quality Assessment at Apple Daily Printing Limited. 2003, 1-32.

Leung M.K.H., Liu C.H. and Chan A., Indoor Air Quality Assessment at Elegance Printing & Book Binding Company Limited. 2003, 1-15.

Leung M.K.H., Liu C.H. and Chan A., Indoor Air Quality Assessment at Fortune Printing International Limited. 2003, 1-36.

Leung M.K.H., Liu C.H. and Chan A., Indoor Air Quality Assessment at Jansun Printing Company Limited. 2003, 1-24.

Leung M.K.H., Liu C.H. and Chan A., Indoor Air Quality Assessment at Mountain Arts Screen Printing Company Limited. 2003, 1-18.

Leung M.K.H., Liu C.H. and Chan A., Indoor Air Quality Assessment at Paramount Printing Company Limited. 2003, 1-24.

Leung M.K.H., Liu C.H. and Chan A., Indoor Air Quality Assessment at Printing Unit The University of Hong Kong. 2003, 1-18.

Leung M.K.H., Liu C.H. and Chan A., Indoor Air Quality Assessment at Reprographic Section at City University of Hong Kong. 2003, 1-25.

Leung M.K.H., Liu C.H. and Chan A., Indoor Air Quality Assessment at Toppan Printing Company (Hong Kong) Limited. 2003, 1-27.

Leung M.K.H., Liu C.H. and Chan A., Indoor Air Quality Assessment of Kin Kwok Printing Press Limited. 2003, 1-20.

Leung M.K.H., Chan A., Lam P. and Lo W., Indoor Air Quality for Hospitals. 2003, 1-68.

Leung M.K.H. and Hsieh C.K., Phase-change heat transfer in laser transformation hardening, Proceedings of the 1st Pacific International Conference on Application of Lasers and Optics 2004. Melbourne, Australia, Laser Institure of America, LMP-MD 7-12.

Leung M.K.H., Leung Y.C. and Cheng W.K., Report on Energy Survey at Hong Kong Institute of Vocational Education Tuen Mun Campus. 2003, 1-48.

Ni M., Leung M.K.H., Sumathy K. and Leung Y.C., Water electrolysis - a brige between renewable resources and hydrogen, Proceedings of The International Hydrogen Energy Forum. Beijing, China, 2004, 1: 475-480.

Yu Y.H.K., Shum V.W.Y., Chan A.H.S. and Leung M.K.H., Online casebook on industrial accident analysis: Improvement of learning and teaching, Proceedings of the XVth Triennial Congress of the International Ergonomics Association and the 7th Joint Conference of Ergonomics Society of Korea/Japan Ergonomics Society. Seoul, 2003, 4pp.

Researcher : Leung YC

Project Title:	Air pollution due to road traffic: a study to achieve sustainable air quality in Hong Kong
Investigator(s):	Dr. Leung D.Y.C.
Department:	Mechanical Engineering
Source(s) of Funding:	Croucher Foundation
Start Date:	11/1995
Completion Date:	11/2003

Abstract:

To carry out comprehensive measurements on the harmful air pollutants emitted from road vehicles in the urban areas; to select and calibrate the most suitable model for predicting the air quality in the complex urban environment; to predict and assess the air quality in urban areas in the next decade under different air pollution control strategies; to recommend the most suitable strategy to improve the air quality in urban areas of Hong Kong.

Project Title:	Study on the feasibility of using biodiesel fuel in Hong Kong
Investigator(s):	Dr. Leung D.Y.C.,
Department:	Mechanical Engineering
Source(s) of Funding:	Environment Protection Department, Hong Kong Government
Start Date:	11/2000

Abstract:

To study on the feasibility of using biodiesel fuel in Hong Kong.

Project Title:	Three dimensional characteristics of air pollutant dispersion inside street canyons
Investigator(s):	Dr. Leung D.Y.C.
Department:	Mechanical Engineering
Source(s) of Funding:	Block Grant Earmarked for Research
Start Date:	01/2003
Completion Date:	03/2004

Abstract:

To develop a 3-D computation code, based on the existing 2-D code for street canyon flow; to investigate the characteristics of fluid flow and pollutant dispersion in street canyons using the validated model.

Project Title:	Development of a three-dimensional numerical model for air pollution study in urban street canyons
Investigator(s):	Dr. Leung D.Y.C., Dr. Lam K.M., Dr. Xia J.Y.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	12/2003

Abstract:

To develop a three-dimensional computation model for street canyon flow; to validate and fine-tune the model using physical modelling technique; to investigate the characteristics of the flow in street canyons with different configurations using the validated model.

Project Title:	Development of a three-dimensional numerical model for air pollution study in urban street canyons
Investigator(s):	Dr. Leung D.Y.C., Dr. Lam K.M., Dr. Xia J.Y.
Department:	Mechanical Engineering
Source(s) of Funding:	RGC Projects (Block Grant Funded)
Start Date:	12/2003

Abstract:

List of Research Outputs

Chan F.C., Leung Y.C., Li Y.S., Luk K.M., Tham L.G. and So R.M.C., The Hong Kong Institution Engineers Transactions. Hong Kong, China, HKIE, 2003, 10(3): 65.

Chan F.C., Leung Y.C., Li Y.S., Luk K.M., Tham L.G. and So R.M.C., The Hong Kong Institution Engineers Transactions. Hong Kong, China, HKIE, 2003, 10(4): 94.

Chan F.C., Leung Y.C., Li Y.S., Luk K.M., Tham L.G. and So R.M.C., The Hong Kong Institution Engineers Transactions. Hong Kong, China, HKIE, 2004, 11(1): 63.

Chan F.C., Leung Y.C., Li Y.S., Luk K.M., Tham L.G. and So R.M.C., The Hong Kong Institution Engineers Transactions. Hong Kong, China, HKIE, 2004, 11(2): 78.

Chang J., Leung Y.C., Wu C.Z. and Yuan Z.H., A review on the energy production, consumption, and prospect of renewable energy in China, Renewable and Sustainable Energy Reviews. UK, Elsevier Ltd., 2003, 7: 453-468.

Ching W.H., Leung M.K.H. and Leung Y.C., Solar photocatalytic degradatio of gaseous formaldehyde by sol-gel TiO₂ thin film for enhancement of indoor air quality, Solar Energy. Elsevier, 2004, 77(2): 129-135.

Leung M.K.H., Leung Y.C. and Cheng W.K., Report on Energy Survey at Hong Kong Institute of Vocational Education Tuen Mun Campus. 2003, 1-48.

Li Y., Chan A.T.Y., Leung Y.C. and Lee J.H.W., Dispersion and control of SARS virus aerosols in indoor environemnt - transmission routes and ward ventrilation, The 2nd Natioanl Conference on NEw Advances of Refrigevation and Air-Conditioning. Shanghai, China, 2003, 8pp.

Liu C.H., Leung Y.C. and Woo C.M., Development of a scalable finite element solution to the Navier-Stokes Equations, Computational Mechanics. Germany, Springer, 2003, 32: 185-198.

Ni M., Leung M.K.H., Sumathy K. and Leung Y.C., Water electrolysis - a brige between renewable resources and hydrogen, Proceedings of The International Hydrogen Energy Forum. Beijing, China, 2004, 1: 475-480.

Xia J., Hussaini M.Y. and Leung Y.C., Numerical simulations of wind field in street canyons with and without moving vehicles, 16th ASCE Engineering Mechanics Conference. Washington, USA, University of Washington, 2003, Electronic Proceeding: 13pp.

Yin X., Chang J., Wang J., Wu C. and Leung Y.C., Production of methanol fuel via biomass gasification, Coal Conversion. China, 2003, 26: 26-30.

Yin X., Leung Y.C., Chang J. and Wu C.Z., Study on biomass gasification methanol synthesis system, Proceedings of International Conference on Energy and the Environment. China, Shanghai Scientfic & Technical Publishers, 2003, 261-267.

Yu I.T.S., Li Y., Wong T.W., Tam W., Chan A.T.Y., Lee J.H.W., Leung Y.C. and Ho T., Evidence of airborne transmission of the severe acute respiratory syndrome virus, The New England Journal of Medicine. Waltham, USA, Massachusetts Medical Society, 2004, 350: 1731-1739.

Researcher : Li H

List of Research Outputs

Li H. and Ngan A.H.W., Size effects of nanoindentation creep, Journal of Materials Research. Warrendale, USA, Materials Research Society, 2004, 19: 513-522.

Researcher : Li M

List of Research Outputs

Li M. and Chwang A.T.Y., Molecular simulation of micro-nano fluid dynamics, HKIE Transactions. 2003, 10(4): 62-66.

Researcher : Li Y (Li Yuguo)

Project Title:	A dynamic theory of natural ventilation in buildings
Investigator(s):	Dr. Li Y.G., Dr. Delsante A., Dr. Sandberg M.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	09/2001
Completion Date:	12/2003

Abstract:

To extend the theroy of solution multiplicity of natural ventilation into realistic multi-zone buildings; to develop a new theory based on two new thermal mass air change parameters to analyse the effects of thermal mass (e.g. night ventilation and cooling).

Project Title:	A theory of enclosure ventilation driven by combined forces
Investigator(s):	Dr. Li Y.G., Dr. Chan A.T.Y., Dr. Delsante A.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	09/2002

Abstract:

Ventilation flow in an enclosure driven by combined natural and mechanical forces is fundamental to hybrid ventilation as well as to smoke control by mechanical extract. The current study is to understand how each driving force contributes to the overall force (pressure), ventilation flow rate, and flow pattern.

Project Title:	Wind-induced cross ventilation in buildings with large openings
Investigator(s):	Dr. Li Y.G., Dr. Roesler M.
Department:	Mechanical Engineering
Source(s) of Funding:	Germany/Hong Kong Joint Research Scheme
Start Date:	01/2003

Abstract:

To understand the "virtual flow tube" flow phenomena through buildings with large ventilation openings; to improve the simple macroscopic prediction methods in predicting ventilation flow rates for engineering applications.

Project Title:	Multiple states of building smoke flows: a non-linear dynamical systems approach
Investigator(s):	Dr. Li Y.G., Dr. Luo M.C., Prof. Sandberg M.
Department:	Mechanical Engineering
Source(s) of Funding:	RGC Projects (Block Grant Funded)
Start Date:	07/2003

Abstract:

To develop a new theoretical understanding of non-linear dynamical phenomena in smoke flows; to develop new (continuation) CFD and multi-zone programs which are capable of predicting simple dynamical phenomena of building smoke flows: to demonstrate the application of the new theory and tools in practical fire safety design problems.

List of Research Outputs

Chan F., Cheung V., Law V., Li Y., Wong A. and Yau R.M.H., Air distribution design in a SARS ward with multiple beds, Symposium on Legionnaires' Disease and other Respiratory Infection and their Prevention. Hong Kong, 2003, 50-68.

Chen Z.D., Bandopadhayay P., Halldorsson J., Byrjalsen C., Heiselberg P. and Li Y., An experimental investigation of a solar chimney model with uniform wall heat flux, Building and Environment. Elsevier, 2003, 38: 893-906.

Chen Z.D., Delsante A., Topp P., Heiselberg P., Li Y. and Fariborz P.H., Improved prediction of the ventilation flow rate through solar chimneys, Proceedings of the 4th International Symposium on Heating, Ventilating and Air Conditioning. Beijing, China, Tsinghua University Press, 2003, 1: 132-137.

Heiselberg P., Li Y., Andersen A., Bjerre M. and Chen Z., Experimental and CFD evidence of multiple soulutions in a naturally ventilated building, Indoor Air. Blackwell Munksgaard, 2004, 14: 43-54.

Li Y. and Chen Z., A balance-point method for assessing the effect of natural ventilation on indoor particle concentrations, Atmospheric Environment. Elsevier, 2003, 37: 4277-4285.

Li Y. and SARS B., A full-scale mock-up study of SARS busters' new air-conditioning system for SARS wards, Proceedings Asian Pacific Conference on Built Environment. 2003, 15pp.

Li Y., Building ventilation airflows - solution multiplicity and analysis methods, Cryogenics and Refrigeration-Proceedings of ICCR'2003. Hangzhou, China, Zhejiang University, 641-648.

Li Y., Chaotic solution behavior in coupled natural ventilation and thermal analyses, Proceedings of the 4th International Symposium on Heating, Ventilating and Air Conditioning. Beijing, China, Tsinghua University Press, 2003, 1: 125-131.

Li Y. and Yam C.W., Designing thermal mass in naturally ventilated buildings, International Journal of Ventilation. Coventry, UK, Veetech Ltd., 2004, 2(4): 313-324.

Li Y. and Yam C.W., Designing thermal mass in naturally ventilated buildings, Proceedings of the First International Workshop in Natural Ventilation. Tokyo, Japan, 2003, 15pp.

Li Y., Chan A.T.Y., Leung Y.C. and Lee J.H.W., Dispersion and control of SARS virus aerosols in indoor environemnt - transmission routes and ward ventrilation, The 2nd Natioanl Conference on NEw Advances of Refrigevation and Air-Conditioning. Shanghai, China, 2003, 8pp.

Li Y., Yu I., Xu P., Lee J.H.W., Wong T.W., Ooi P.L. and Sleigh A., Predicting super spreading events during the 2003 SARS epidemics in Hong Kong and Singapore, American Journal of Epidemiology. 2004, 1731-1739.

Li Y., The ups and downs of air flow in building ventilation, Healthy Buildings 2003. Singapore, 6pp.

Li Y. and Chen Z., When to open windows - a concept of balance-point outdoor concentration of particles, Healthy Building 2003. Singapore, 6pp.

Wong T.W., Lee C.K., Wilson T., Lau J.T.F., Yu T.S., Lui S.F., Chan P.K.S., Li Y., Bresee J.S., Sung J.J.Y. and Parashar U.D., Cluster of SARS among medical students exposed ot single patient, Hong Kong, Emerging Infectious Diseases. CDC, 2004, 10(2): 269-276.

Yu I.T.S., Li Y., Wong T.W., Tam W., Chan A.T.Y., Lee J.H.W., Leung Y.C. and Ho T., Evidence of airborne transmission of the severe acute respiratory syndrome virus, The New England Journal of Medicine. Waltham, USA, Massachusetts Medical Society, 2004, 350: 1731-1739.

Researcher : Li Y (Li Yong)

List of Research Outputs

Li Y. and Sumathy K., Comparison between heat transfer and heat mass transfer models for transportation process in an adsorbent bed, International Journal of Heat and Mass Transfer. UK, Elsevier, 2004, 47: 1587-1598.

Li Y., Sumathy K. and Kaushika N.D., Thermal analysis of solar-powered continuous adsorption air-conditioning system, Proceedings of ASHRAE Winter Meeting. Anaheim, USA, 2004, 110: 1-7.

Sumathy K., Yeung K.H. and Li Y., Technology development in the solar adsorption refrigeration systems, Progress in Energy and Combustion Science. UK, Elsevier, 2003, 29: 301-327.

Researcher : Li Z

List of Research Outputs

Li Z. and Sumathy K., A compuatational study on the performance of a solar air-conditioning system with a partitioned storage tank, Energy. UK, Elsevier, 2003, 29: 1683-1686.

Researcher : Lin X

List of Research Outputs

Lin X. and Cheung W.L., Study on PET/PP microfibrillar composites. I. morphological development in melt extrusion, Journal of Applied Polymer Science. Wiley, 2003, 88: 3199-3109.

Lin X., Jia D., Leung F.K.P. and Cheung W.L., Study on poly(ethylene terephthalate)/polypropylene microfibrillar composites. II. solid-state drawing behavior, Journal of Applied Polymer Science. Wiley, 2004, 93: 1989-2000.

Researcher : Liu CH

List of Research Outputs

Leung M.K.H., Liu C.H. and Chan A., Indoor Air Quality Assessment at Apple Daily Printing Limited. 2003, 1-32.

Leung M.K.H., Liu C.H. and Chan A., Indoor Air Quality Assessment at Elegance Printing & Book Binding Company Limited. 2003, 1-15.

Leung M.K.H., Liu C.H. and Chan A., Indoor Air Quality Assessment at Fortune Printing International Limited. 2003, 1-36.

Leung M.K.H., Liu C.H. and Chan A., Indoor Air Quality Assessment at Jansun Printing Company Limited. 2003, 1-24.

Leung M.K.H., Liu C.H. and Chan A., Indoor Air Quality Assessment at Mountain Arts Screen Printing Company Limited. 2003, 1-18.

Leung M.K.H., Liu C.H. and Chan A., Indoor Air Quality Assessment at Paramount Printing Company Limited. 2003, 1-24.

Leung M.K.H., Liu C.H. and Chan A., Indoor Air Quality Assessment at Printing Unit The University of Hong Kong. 2003, 1-18.

Leung M.K.H., Liu C.H. and Chan A., Indoor Air Quality Assessment at Reprographic Section at City University of Hong Kong. 2003, 1-25.

Leung M.K.H., Liu C.H. and Chan A., Indoor Air Quality Assessment at Toppan Printing Company (Hong Kong) Limited. 2003, 1-27.

Leung M.K.H., Liu C.H. and Chan A., Indoor Air Quality Assessment of Kin Kwok Printing Press Limited. 2003, 1-20.

Liu C.H., Ho W.M. and Ng C.O., A numerical study on turbulent oscillatory plane Couette flow, Proceedings of the 17th National Conference on Hydrodynamics and the 6th National Congress on Hydrodynamics, Shenzhen and Hong Kong. Beijing, China, China Ocean Press, 2004, 308-314.

Liu C.H., Leung Y.C. and Woo C.M., Development of a scalable finite element solution to the Navier-Stokes Equations, Computational Mechanics. Germany, Springer, 2003, 32: 185-198.

Liu C.H., Turbulent plane couette flow and scalar transport at low reynolds number, Journal of Heat Transfer, Transactions of the American Society of Mechanical Engineers. USA, ASME, 2003, 125: 988-998.

Researcher : Liu X

List of Research Outputs

Sze K.Y. and Liu X., A co-rotational grid-based model for fabric drapes, International Journal for Numerical Methods in Engineering. John Wiley & Sons, Ltd., 2003, 57: 1503-1521.

Sze K.Y., Liu X. and Lo S.H., Popular benchmark problems for geometric nonlinear analysis of shells, Finite Elements in Analysis and Design. 2004, 40: 1551-1569.

Researcher : Lu D

List of Research Outputs

Lu D. and Chwang A.T.Y., Interfacial ship waves in two-fluid systems, In "Recent Advances in Fluid Mechanics: Proceedings of the Fourth International Conference on Fluid Mechanics" (eds. Fenggan Zhuang and Jiachun Li). Beijing, Tsinghua University Press, 2004, 292-295.

Lu D. and Chwang A.T.Y., Transient free-surface waves due to a suddenly stopping body, Asian and Pacific Coasts 2003, Proceedings of the Second International Conference. Makuhari, Japan, 2003, APAC021, 1-9.

Researcher : Mak CC

List of Research Outputs

Chow K.W. and Mak C.C., (2+1) dimensional wave patterns of the Davey-Stewartson system, Journal of the Physical Society of Japan. The Physical Society of Japan, 2003, 72: 3070-3074.

Chow K.W., Tsang S.C. and Mak C.C., Another exact solution for two-dimensioinal, inviscid sinh Poisson vortex arrays, Physics of Fluids. American Institute of Physics, 2003, 15(8): 2437-2440.

Researcher : Meng X

List of Research Outputs

Meng X. and Ngan A.H.W., Nano-alloys synthesized by controlled crystallization from supercooled atomic clusters of elements, Journal of Materials Research. Warrendale, USA, Materials Research Society, 2004, 19: 780-785.

Researcher : Mok HT

List of Research Outputs

Chan C.W., Jayawardena A.W. and Mok H.T., Estimating mortality in the early stage of a SARS outbreak, Cover Story. Hong Kong Engineer, 2003, 10-11.

Researcher : Ng CO

Project Title:	Dispersion of a chemical species subject to sorptive exchange in a wave boundary layer
Investigator(s):	Dr. Ng C.O.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	09/2002

Abstract:

The goal of the study is to study theoretically the transport of a sorbing chemical species in a wave boundary layer on the bottom of a body of water, where the transport is subject to the effects of kinetic mass exchange between an aqueous phase and a sorbed phase on suspended particles. The project also aims at constructing a mathematical model to describe these transport processes.

Project Title:	Biological mass transport processes associated with coronary artery diseases
Investigator(s):	Dr. Ng C.O., Prof. Rudraiah N.
Department:	Mechanical Engineering
Source(s) of Funding:	Block Grant Earmarked for Research
Start Date:	01/2003

Abstract:

To understand the formation of plaques with the help of mathematical modelling and then suggest a remedial mechanism.

Project Title:	Nonlinear interaction between surface gravity waves and non-Newtonian fluid mud
Investigator(s):	Dr. Ng C.O., Dr. Bai Y.C., Dr. Zhang D.H.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	12/2003

Abstract:

To study: (i) characterization of cohesive sediments in estuaries of China. (2) mass transport of non-Newtonian fluid mud induced by surface waves. (3) dispersion of contaminants in fluid mud under waves. (4) effect of watercraft on the erosion of botton sediment.

Project Title:	Nonlinear interaction between surface gravity waves and non-Newtonian fluid mud
Investigator(s):	Dr. Ng C.O., Dr. Bai Y.C., Dr. Zhang D.H.
Department:	Mechanical Engineering
Source(s) of Funding:	RGC Projects (Block Grant Funded)
Start Date:	12/2003

Abstract:

List of Research Outputs

Liu C.H., Ho W.M. and Ng C.O., A numerical study on turbulent oscillatory plane Couette flow, Proceedings of the 17th National Conference on Hydrodynamics and the 6th National Congress on Hydrodynamics, Shenzhen and Hong Kong. Beijing, China, China Ocean Press, 2004, 308-314.

Ng C.O., A time-varying diffusivity model for dispersion in oscillatory turbulent channel flow, Fluid Dynamics Research. Amsterdam, Netherlands, North-Holland, 2004, 34(6): 335-355.

Ng C.O., Homogenization technique applied to problems of Taylor dispersion, Proceedings of the 17th National Conference on Hydrodynamics and the 6th National Congress on Hydrodynamics, Shenzhen and Hong Kong. Beijing, China, China Ocean Press, 2004, 106-115.

Ng C.O., Mass transport in a layer of power-law fluid forced by periodic surface pressure, Wave Motion. Amsterdam, Netherlands, Elsevier BV, 2004, 39(3): 241-259.

Ng C.O., Mass transport in gravity waves revisited, Journal of Geophysical Research-Oceans. Washington DC, USA, American Geophysical Union, 2004, 109(C4): C04012.

Ng C.O., Mass transport in gravity waves revisited, Proceedings of EM2004, the Seventeenth ASCE Engineering Mechanics Conference. Newark, USA, University of Delaware, 2004, CD-ROM.

Ng C.O., Huang L. and Chwang A.T.Y., Mass transport of non-Newtonian mud under periodic pressure forcing, Proceedings of EM2003, the Sixteenth ASCE Engineering Mechanics Conference. Seattle, USA, University of Washington, 2003, CD-ROM, 12 pp.

Ng C.O., On the longitudinal dispersion of settling particles in a horizontal circular pipe, Proceedings of EM2003, the Sixteenth ASCE Engineering Mechanics Conference. Seattle, USA, University of Washington, 2003, CD-ROM.

Rudraiah N. and Ng C.O., A model for manufacture of nano-sized smart materials free from impurities, Current Science. Bangalore, India, Current Science Association, 2004, 86(8): 1076-1091.

Shen Y.M., Ng C.O. and Zheng Y.H., Simulation of wave propagation over a submerged bar using the VOF method with a two-equation k - e turbulence modeling, Ocean Engineering. Oxford, UK, Elsevier Science Ltd, 2004, 31(1): 87-95.

Yip T.L. and Ng C.O., Dual-species transport subject to sorptive exchange in pipe flow, Journal of Applied Mechanic. New York, USA, ASME, 2003, 70(4): 550-560.

Researcher : Ngan AHW

Project Title:	A TEM investigation into the anomalous insulator-to-metal transition in sputter coated nickel-aluminium thin films
Investigator(s):	Dr. Ngan A.H.W.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	09/2000

Abstract:

To investigate an anomalous electrical transition from insulator to metallic behaviour observed in Ni-Al thin films deposited on conducting substrates. The project helps to improve understanding of the physical origin of the electrical transition.

Project Title:	Investigation of dislocation pile-up effects at grain boundaries by sub-granular indentation
Investigator(s):	Dr. Ngan A.H.W.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	09/2001

Abstract:

To perform nanoindentation and transmission electron microscopy experiments to investigate disloction pile-up effects at grain boundaries and to see how stresses at the spearhead of a pile-up at a grain boundary are relieved; to investigate experimentally the validity of the concept of the existence of a critical stress intensity factor k_y^' for slip transmission across a grain boundary, and if such a critical k_y^' really exists, to investigate the feasibility of using sub-granular indentation to measure it; to use Ni₃A₁ with and without boron doping as an example material system, to attempt to correlate the ease/difficulty of slip transmission across boundaries with polycryatalline brittleness.

Project Title:	Stress-exponent measurement of nano-grained thin-films by nanoindentation
Investigator(s):	Dr. Ngan A.H.W., Dr. Lin H.C.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	09/2002

Abstract:

The project attempts to investigate the deformation mechanism of nanograined thin film by measuring the stress exponent using depth-sensing indentation and by comparing with theoretical predictions. It is proposed to systematically vary the grain-size-to-indent-size ratio to investigate its effect on the measured properties.

Project Title:	Experimental investigation of statistical behaviour of random granular packings
Investigator(s):	Dr. Ngan A.H.W.
Department:	Mechanical Engineering
Source(s) of Funding:	Block Grant Earmarked for Research
Start Date:	10/2002
Completion Date:	09/2003

Abstract:

To construct a macroscopic mock test rig, for the measurement of force and displacement distributions; to measure for the first time how displacements are distributed in random grain piles; to generate some first class experimental results with a major element of novelty

Project Title:	Energetic pathway prediction in dislocation processes by 3-D atomistic simulation
Investigator(s):	Dr. Ngan A.H.W.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	09/2003

Abstract:

To use atomistic simulation to study the energetic pathways in the following 3-D dislocation activation processes: (i) cross-slip, (ii) kink-pair processes, (iii) homogeneous dislocation nucleation as detected in nanoindentation.

Project Title:	Energetic pathway prediction in dislocation processes by 3-D atomistic simulation
Investigator(s):	Dr. Ngan A.H.W.
Department:	Mechanical Engineering
Source(s) of Funding:	RGC Projects (Block Grant Funded)
Start Date:	09/2003

Abstract:

Project Title:	Synthesis of nano-alloys by controlled crystallization from supercooled atomic clusters of elements
Investigator(s):	Dr. Ngan A.H.W.
Department:	Mechanical Engineering
Source(s) of Funding:	Block Grant Earmarked for Research
Start Date:	02/2004

Abstract:

To make use of this method to synthesis a range of MANCs, and to investigate the mechanical, phase equilibria, and electronic properties of these MANCs.

List of Research Outputs

Anand T.J.S., Ng H.P., Ngan A.H.W. and Meng X.K., Temperature-coefficient-of-resistance characteristics of sputter-deposited Ni_xAl_1-x thin films for 0.5 < x <1, Thin Solid Films. Elsevier, 2004, 441: 298-306.

Li H. and Ngan A.H.W., Size effects of nanoindentation creep, Journal of Materials Research. Warrendale, USA, Materials Research Society, 2004, 19: 513-522.

Li J., Ngan A.H.W. and Gumbsch P., Atomistic modeling of mechanical behavior, Acta Materialia. Pergamon, 2003, 51: 5711-5742.

Liang H.Y., Woo C.H., Huang H., Ngan A.H.W. and Yu T.X., Dislocation nucleation in the initial stage during nanoindentation, Philosophical Magazine. Taylor & Francis, 2003, 83: 3609-3622.

Meng X. and Ngan A.H.W., Nano-alloys synthesized by controlled crystallization from supercooled atomic clusters of elements, Journal of Materials Research. Warrendale, USA, Materials Research Society, 2004, 19: 780-785.

Ngan A.H.W., Wen M. and Woo C.H., Atomistic simulations of Paidar-Pope-Vitek lock formation in Ni₃Al, Computational Materials Science. Elsevier, 2004, 29: 259-269.

Ngan A.H.W., Computer simulation of contact force distribution in random granular packings, IUTAM Symposium on Multiscale Modeling and Characterization of Elastic-Inelastic Behavior of Engineering Materials. Dordrecht, Netherlands, Kluwer Academic Publishers, 2004, 175-182.

Ngan A.H.W., Creep effects in nanoindentation, Proceedings of the 2nd International Conference on Structure, Processing and Properties of Materials. Dhaka, Bangladesh, BUET, 2004, 36-43.

Ngan A.H.W., Mechanical analog of temperature for the description of force distribution in static granular packings, Physical Review E. New York, USA, American Physical Society, 2003, 68: 011301-1 to 011301-10.

Ngan A.H.W., On distribution of contact forces in random granular packings, Physica A. Elsevier, 2004, 339: 207-227.

Ngan A.H.W., Reply to "Comment on mechanical analog of temperature for the description of force distribution in static granular packings", Physical Review E. New York, USA, American Physical Society, 2004, 69: 053302-1 to 053302-4.

Wo P.C. and Ngan A.H.W., Investigation of slip transmission behavior across grain boundaries in polycrystalline Ni₃Al using nanoindentatoin, Journal of Materials Research. Pittsburg, USA, Materials Research Society, 2004, 19: 189-201.

Researcher : Ni M

List of Research Outputs

Ni M., Leung M.K.H., Sumathy K. and Leung Y.C., Water electrolysis - a brige between renewable resources and hydrogen, Proceedings of The International Hydrogen Energy Forum. Beijing, China, 2004, 1: 475-480.

Researcher : Quadir MZ

List of Research Outputs

Duggan B.J., Lam K.T.G. and Quadir M.Z., Increasing desirable recrystallization texture in IF steel by controlled rolling, In: Eds: T. Chandra, J.M. Torralba, T. Sakai, International Conference on Processing & Manufacturing of Advanced Materials (THERMEC'2003). Madrid, Spain, Materials Science Forum, 2003, 426-432: 3745-3750.

Duggan B.J., Tse Y.Y., Lam K.T.G., Hua N. and Quadir M.Z., The body in white: automobiles, steel and aluminium, Proceedings of the 2nd International Conference on Structure, Processing and Properties of Materials (SPPM2004). Dhaka, Bangladesh, BUET, 2004, 24-35.

Quadir M.Z. and Duggan B.J., A microstructural study of warm roled interstitial free steel, Proceeding of the 2nd International Conference on Structure, Processing and Properties of Materials (SPPM2004). Dhaka, Bangladesh, BUET, 2004, 443-452.

Quadir M.Z., Lam K.T.G. and Duggan B.J., A rolling-annealing cycle for enhanced deep drawing properties in IF steels, Proceedings of the Institution of Mechanical Engineers: Part C: Journal of Mechanical Engineering Science. London, UK, 2004, 218(6): 631-639.

Quadir M.Z. and Duggan B.J., Shear band formation in warm rolled IF steel, In: Eds: T. Chandra, J.M. Torralba, T. Sakai, International Conference on Processing & Manufacturing of Advanced Materials (THERMEC'2003). Madrid, Spain, Materials Science Forum, 2003, 426-432: 3769-3774.

Researcher : Sheng N

List of Research Outputs

Sze K.Y., Jin W.G., Sheng N. and Li J., Trefftz methods for plane piezoelectricity, Computer Assisted Mechanics and Engineering Sciences. 2003, 10: 619-627.

Researcher : Siu YK

List of Research Outputs

Siu Y.K., Ph.D. Thesis, Modelling and Prototyping of Heterogeneous Solid CAD Models. Hong Kong, The University of Hong Kong, 2003, 1-195.

Researcher : So ESP

List of Research Outputs

So E.S.P., Chan A.T.Y. and Lai K.K., Large eddy simulation of pollutant dispersiion in an urban street canyon under different geometric configuratioin, Proceedings of 17th ASCE Engineering Mechanics Conference. Newark, USA, University of Delaware, 2004, 254: 8pp.

So E.S.P., Large eddy simulations of wind flow and pollution dispersion in an urban street canyon, M.Phil.. Hong Kong, The University of Hong Kong, 2003, 1-88.

Researcher : Soh AK

Project Title:	On the size effects in micro-mechanics based characterization and performance modeling of functionally graded composite coatings/layers
Investigator(s):	Prof. Soh A.K., Prof. Gao H.J.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	10/2000

Abstract:

To carry out a detailed study of the damage, surface cracking and debonding of functionally graded composite coatings/layers (FGCCLs), using theoretical, numerical and experimental techniques, to provide useful information for the design and modification of microstructures.

Project Title:	Deformation and fracture of soft ferromagnetic materials
Investigator(s):	Prof. Soh A.K.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	10/2001

Abstract:

a) to develop constitutive relations and fracture theories for SFMs; to develop a setup consisting of a magnetic-mechanical coupled loading tester and a computer-controlled system for measuring magnetic and mechanical parameters. The nonlinear hysteresis loops and the fracture loads for both ferrite ceramics and super-magnetostriction materials, subjected to magneteic-mechanical coupled loads, will be detemined; b) to establish three constitutive models, namely, a micromechanics constitutive model, a phenomenological J₂ model and a constitutive relation for super-magnetostriction materials, which are capabel of describing the nonlinear magnetomechanical deformation of SFMs; c) to develop magnetic-induced fracture models and criteria for linear magnetomechanical fracture, and to explore the mechanisms of magnetic-induced fracture and fatigue failure controlled by domain switching; d) to develop a magnetic-mechanical coupled finite element method (MMFEM) based on both the linear and nonlinear magnetomechanical constitutive equations developed in the proposed project The finite elements developed would be emplyed for design and analysis of smart magnetic devices.

Project Title:	Toughening of ferroelectric ceramic nano-composites
Investigator(s):	Prof. Soh A.K.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	10/2002

Abstract:

This project attempts to: 1) carry out experimental and theoretical studies on deformation and fracture of ferroelectric ceramic nano-composites (FNC); 2) examine different toughening mechanisms and develop models which are able to describe such mechanisms; and 3) investigate two types of FNC, one consisting of metal nano-particles and the other of dielectric ceramic nano-particles.

Project Title:	Strengthening and toughening of layered biomaterials
Investigator(s):	Prof. Soh A.K.
Department:	Mechanical Engineering
Source(s) of Funding:	Block Grant Earmarked for Research
Start Date:	10/2002

Abstract:

To study the strangthening and toughening mechanisms of the microstructure of layered biomaterials, and to give a conceptual guide to the biomimetic design of synthetic materials; to study the microstructural characteristics and mechanical performances of layered biomaterials by experimental methods. Particular attention will be paid to the microstructure and properties of the nacre of mollusk; to investigate the relationships between the mechanical performances and microstructure of layered biomaterials, and to study the effects of organic matrix on the macroscopic mechanical performances of layered biomaterials. Particular attention will be paid to the mechanical characteristics of organic matrix layers in the nacre of mollusk.

Project Title:	Mechanics of ultra-thin films and nanolaminates
Investigator(s):	Prof. Soh A.K.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	10/2003

Abstract:

To develop modeling and simulation methods for prediction of the nanoscale mechanical properties of ultra-thin films and multilayer nanolaminates: to set-up innovative experiments ofr validation of these methods.

Project Title:	Mechanics of ultra-thin films and nanolaminates
Investigator(s):	Prof. Soh A.K.
Department:	Mechanical Engineering
Source(s) of Funding:	RGC Projects (Block Grant Funded)
Start Date:	10/2003

Abstract:

Project Title:	Interactive behaviour of carbon nanotubes with biological molecules
Investigator(s):	Prof. Soh A.K.
Department:	Mechanical Engineering
Source(s) of Funding:	Block Grant Earmarked for Research
Start Date:	02/2004

Abstract:

To investigate the interactive behavior of carbon nanotubes (CNTs) with chemical or biological molecules in the aqueous environment by using the molecular dynamics (MD) simulation; to study the dispersion and separation of the aggregate of CNT assisted by single strand DNA (ssDNA); to study the specific or selective binding of peptides or proteins on CNT.

List of Research Outputs

Fang D.N., Zhang Z.K., Soh A.K. and Lee K.L., Fracture criteria of piezoelectric ceramics with defects, Mechanics of Materials. UK, Elsevier, 2004, 36: 917-928.

Jin B., Soh A.K. and Zhong Z., Propagation of an anti-plane moving crack in a functionally graded piezoelectric strip, Archives of Applied Mechanics. USA, Springer-Verlag, 2003, 73(3-4): 252-260.

Lee K.L., Soh A.K. and He P.F., Fatigue failure of ferroelectric ceramics subjected to cyclic inclined electric loading, Scripta Materialia. UK, Elsevier, 2003, 49(9): 849-854.

Lee K.L., Soh A.K., Fang D.N. and Liu J.X., Fracture behavior of inclined elliptical cavities subjected to mixed-mode I and II electro-mechanical loading, Theoretical and Applied Fracture Mechanics. UK, Elsevier, 2004, 41(1-3): 125-135.

Liu J., Liu A., Jiang Z.Q. and Soh A.K., Interaction of a screw dislocation with an interfacial crack in two dissimilar piezoelectric layers, Key Engineering Materials. Switzerland, Trans. Tech. Publications Ltd., 2004, 261-263: 141-146.

Liu J.X., Wang X.Q. and Soh A.K., The behavior of a screw dislocation in a two-phase piezoelectric strip, Mechanics of Electromagnetic Solids. Massachusetts, USA, Kluwer Academic Publishers, 2003, 173-188.

Soh A.K., Fang D.N. and Dong Z.X., Analysis of toughening mechanisms of Z(r)O(2)/nano-SiC ceramic composites, Journal of Composite Materials. UK, Sage Publication Ltd., 2004, 38(3): 227-241.

Soh A.K., Lee K.L., Liu J.X. and Fang D.N., Behavior of a moving Griffith crack in piezoelectric ceramics, Mechanics of Electromagnetic Solids. Massachusetts, USA, Kluwer Academic Publishers, 2003, 57-72.

Soh A.K. and Liu J.X., Mode III interfacial edge crack in a magnetoelectroelastic bimaterial, Key Engineering Materials. Switzerland, Trans Tech Publications Ltd., 2004, 261-263: 393-398.

Soh A.K. and Yang C., Numerical modeling of interactions between a macro-crack and a cluster of micro-defects, Engineering Fracture Mechanics. UK, Elsevier, 2004, 71(2): 193-217.

Soh A.K., Lee K.L. and Fang D.N., On the effects of an electric field on the fracture toughness of poled piezoelectric ceramics, Materials Science and Engineering A. UK, Elsevier, 2003, 360(1-2): 306-314.

Song F., Soh A.K. and Bai Y.L., Structural and mechanical properties of the organic matrix layers of nacre, Biomaterials. UK, Elsevier, 2003, 24(20): 3623-3631.

Wan Y.P., Fang D.N., Soh A.K. and Hwang K.C., Effect of magnetostriction on fracture of a soft ferromagnetic medium with a crack-like flaw, Fatigue & Fracture of Engineering Materials & Structures. UK, Blackwell Publishing Ltd., 2003, 26(11): 1091-1102.

Wan Y.P., Fang D.N. and Soh A.K., Experimental and theoretical study of the nonlinear response of a giant magnetostrictive rod, Acta Mechanica Sinica. China, Chinese Journal Mechanics Press, 2003, 19(4): 324-329.

Wu H.A. and Soh A.K., Atomistic simulation of the buckling behavior of metal nanorod, International Journal of Nonlinear Sciences and Numerical Simulation. Tel. Aviv., Israel, Freund Publishing House Ltd., 2003, 4(3): 233-238.

Wu H.A., Soh A.K. and Wang X.X., Strength and fractrue of single crystal metal nanowire, Key Engineering Materials. Switzerland, Trans. Tech. Publications Ltd., 2004, 261-263: 33-38.

Researcher : Sumathy K

Project Title:	Identification & study on properties of new desiccant materials used in desiccant dehumidification
Investigator(s):	Dr. Sumathy K.
Department:	Mechanical Engineering
Source(s) of Funding:	Block Grant Earmarked for Research
Start Date:	10/2002
Completion Date:	05/2004

Abstract:

To investigate the properties of new composite desiccant materials that would be used as the working media for a high efficient, compact desiccant dehumidifier suitable for household, hotel, museum, library, supermarket, etc., in consideration of the climatic conditions of Hong Kong.

Project Title:	Modeling of a solar powered continuous adsorption air conditioning system
Investigator(s):	Dr. Sumathy K.
Department:	Mechanical Engineering
Source(s) of Funding:	Block Grant Earmarked for Research
Start Date:	11/2003
Completion Date:	10/2004

Abstract:

To design a continuously operating solar powered adsorption air conditioning system by utilising the collectors of the existing water heating systems to provide the required heat source.

Project Title:	An energy-efficient hybrid desiccant dehumidification and air conditioning system with new desiccant materials
Investigator(s):	Dr. Sumathy K., Prof. Wang R.Z.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	12/2003

Abstract:

To investigate the properties of new composite desiccant materials to be used as the working media for an efficient light-weight to compact desiccant dehumidifier; to develop a new desiccant-based dehumidifier integrated with an existing air conditioning system.

Project Title:	An energy-efficient hybrid desiccant dehumidification and air conditioning system with new desiccant materials
Investigator(s):	Dr. Sumathy K., Prof. Wang R.Z.
Department:	Mechanical Engineering
Source(s) of Funding:	RGC Projects (Block Grant Funded)
Start Date:	12/2003

Abstract:

List of Research Outputs

Li Y. and Sumathy K., Comparison between heat transfer and heat mass transfer models for transportation process in an adsorbent bed, International Journal of Heat and Mass Transfer. UK, Elsevier, 2004, 47: 1587-1598.

Li Y., Sumathy K. and Kaushika N.D., Thermal analysis of solar-powered continuous adsorption air-conditioning system, Proceedings of ASHRAE Winter Meeting. Anaheim, USA, 2004, 110: 1-7.

Li Z. and Sumathy K., A compuatational study on the performance of a solar air-conditioning system with a partitioned storage tank, Energy. UK, Elsevier, 2003, 29: 1683-1686.

Ni M., Leung M.K.H., Sumathy K. and Leung Y.C., Water electrolysis - a brige between renewable resources and hydrogen, Proceedings of The International Hydrogen Energy Forum. Beijing, China, 2004, 1: 475-480.

Sumathy K., Performance of a no-valve solar adsorption ice maker, Proceedings of EuroSun 2004. Germany, 2: 123-128.

Sumathy K., Study on a solar absorption air-conditioning system, Proceedings of 21st IIR International Congress of Refrigeration. Washington D.C., USA, 2003, ICR0516.

Sumathy K., Yeung K.H. and Li Y., Technology development in the solar adsorption refrigeration systems, Progress in Energy and Combustion Science. UK, Elsevier, 2003, 29: 301-327.

Yeung K.H. and Sumathy K., Thermodynamic analysis and optimization of a combined adsorption heating and cooling system, International Journal of Energy Research. John Wiley & Sons, Ltd., 2003, 27: 1299-1315.

Researcher : Sze KY

Project Title:	Computational methods for meso-electromechanical analysis of ferroelectrics and ferroelectric devices
Investigator(s):	Dr. Sze K.Y.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	01/2001

Abstract:

To develop meso-scale constitutive and switching models of ferroelectrics suitable for finite element implementation. The project also aims to develop finite element procedure for determining the eigensolutions of the singular electromechanical fields at the boundary between ferroelectric grains with different polar directions and at electrode-ferroelectrics interfaces.

Project Title:	Nonlinear dynamics of wide-band translating media
Investigator(s):	Dr. Sze K.Y.
Department:	Mechanical Engineering
Source(s) of Funding:	Leung Kau Kui Research and Teaching Endowment Fund
Start Date:	11/2002

Abstract:

To develop a semi-analytical and semi-numerical method to study the nonlinear dynamic phenomena of wide-band translating media. The focused phenomena include forced response, internal resonance and instability.

Project Title:	Evaluation of Galerkin weak form for mesh-free approximants
Investigator(s):	Dr. Sze K.Y.
Department:	Mechanical Engineering
Source(s) of Funding:	Block Grant Earmarked for Research
Start Date:	11/2003

Abstract:

To devleop a robust method to evaluate Galerkin weak form for meshfree approximants.

Project Title:	Development of a rotation-free computational method for fabric drape simulation
Investigator(s):	Dr. Sze K.Y.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	12/2003

Abstract:

To develop an efficient computational method for simulating the mechanics responses of fabrics. Darts, folds and seams will be considered.

Project Title:	Development of a rotation-free computational method for fabric drape simulation
Investigator(s):	Dr. Sze K.Y.
Department:	Mechanical Engineering
Source(s) of Funding:	RGC Projects (Block Grant Funded)
Start Date:	12/2003

Abstract:

To develop an efficient computational method for simulating the mechanics responses of fabrics. Darts, folds and seams will be considered.

List of Research Outputs

Du H.P., Lam J. and Sze K.Y., Non-fragile H_¥ vibration control for uncertain structural systems, Journal of Sound and Vibration. Elsevier, 2004, 273(4): 1031-1045.

Du H.P., Lam J. and Sze K.Y., Non-fragile output feedback H_¥ vehicle suspensioin control using genetic algorithm, Engineering Applications of Artificial Intelligence. Elsevier, 2003, 16: 667-680.

Kim C.H., Sze K.Y. and Kim Y.H., Curved quadratic triangular degenerated- and solid-shell elements for geometric non-linear analysis, International Journal for Numerical Methods in Engineering. John Wiley & Sons, Ltd., 2003, 57: 2077-2097.

Sze K.Y. and Liu X., A co-rotational grid-based model for fabric drapes, International Journal for Numerical Methods in Engineering. John Wiley & Sons, Ltd., 2003, 57: 1503-1521.

Sze K.Y., Zheng S. and Lo S.H., A stabilized eighteen-node solid element for hyperelastic analysis of shells, Finite Elements in Analysis and Design. Elsevier, 2004, 40: 319-340.

Sze K.Y., Yang X. and Fan H., Electric assumptions for piezoelectric laminate analysis, International Journal of Solids and Structures. Elsevier, 2004, 41: 2363-2382.

Sze K.Y., Liu X. and Lo S.H., Popular benchmark problems for geometric nonlinear analysis of shells, Finite Elements in Analysis and Design. 2004, 40: 1551-1569.

Sze K.Y., Yang X. and Yao L.Q., Stabilized plane and axisymmetric piezoelectric finite element models, Finite Elements in Analysis and Design. Elsevier, 2004, 40: 1105-1122.

Sze K.Y., Jin W.G., Sheng N. and Li J., Trefftz methods for plane piezoelectricity, Computer Assisted Mechanics and Engineering Sciences. 2003, 10: 619-627.

Researcher : Sze WS

List of Research Outputs

Yang Z., Chen Y.H. and Sze W.S., Using AHP and Fuzzy sets to determine the build orientation in layer-based machining, International Journal Computer Integrated Manufacturing. Taylor & Francis Ltd., 2003, 16(6): 398-408.

Researcher : Tan ST

Project Title:	Multiple material objects: from CAD representation to rapid prototyping
Investigator(s):	Prof. Tan S.T.
Department:	Mechanical Engineering
Source(s) of Funding:	Block Grant Earmarked for Research
Start Date:	07/1999

Abstract:

To first investigate possible representation schemes of a solid model and secondly to build a representation scheme which incorporates material and other useful information. Such information includes the mechanical properties of the materials within different regions of the engineering part, colour and surface requirement of the regions within the part.

Project Title:	Multiple material objects: from CAD representation to rapid prototyping
Investigator(s):	Prof. Tan S.T.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	07/1999

Abstract:

Project Title:	Layered manufacturing and redesign of compliant assemblies
Investigator(s):	Prof. Tan S.T.
Department:	Mechanical Engineering
Source(s) of Funding:	Hong Kong Research Grants Council Competitive Earmarked Research Grants
Start Date:	12/2002

Abstract:

The project is to investigate how and under what conditions 'compliant' assemblies can be built using layered manufacturing processes, and to construct algorithms for automatically merging those parts within the assembly that can be amalgamated without compromising on the strength and functionality of the assembly.

Project Title:	Computer modeling of components made of multi heterogeneous materials
Investigator(s):	Prof. Tan S.T., Dr. Chen K.Z.
Department:	Mechanical Engineering
Source(s) of Funding:	RGC Projects (Block Grant Funded)
Start Date:	07/2003

Abstract:

To develop an effective method for representing models that provide all the necessary geometric and material information of the designed components that are to be made of multi heterogeneous materials.

List of Research Outputs

Chan C.K. and Tan S.T., Generating assembly features onto split solid models, Computer-aided Design. Elsevier, 2003, 35(14): 1315-1336.

Kou X. and Tan S.T., Representation and visualization for heterogeneous CAD models, International CAD Conference. Pattaya, Thailand, 2004, p1-7.

Yan Y. and Tan S.T., Adding draft angles on mechanical components containing constant radius blending surfaces, Computer-aided Design. Elsevier, 2004, 36(7): 565-580.

Researcher : Tsang SC

List of Research Outputs

Chow K.W., Tsang S.C. and Mak C.C., Another exact solution for two-dimensioinal, inviscid sinh Poisson vortex arrays, Physics of Fluids. American Institute of Physics, 2003, 15(8): 2437-2440.

Tsang S.C., Chiang K.S. and Chow K.W., Soliton interaction in a two-core optical fiber, Optics Communications. Elsevier, 2004, 229: 431-439.

Researcher : Tse YY

List of Research Outputs

Duggan B.J. and Tse Y.Y., Crystal growth in deformed metals by an impingement and spheroidisation process, Acta Materialia. Elsevier, 2004, 52: 387-393.

Duggan B.J., Tse Y.Y., Lam K.T.G., Hua N. and Quadir M.Z., The body in white: automobiles, steel and aluminium, Proceedings of the 2nd International Conference on Structure, Processing and Properties of Materials (SPPM2004). Dhaka, Bangladesh, BUET, 2004, 24-35.

Researcher : Wan KH

List of Research Outputs

Wan K.H., M.Phil. Thesis, Transition Finite Elements for Mesh Refinement in Plane and Plate Bending Analyses. Hong Kong, The University of Hong Kong, 2004, 1-196.

Researcher : Wang L

Project Title:	Forced convection in rotating curved channel: multiplicity and stability
Investigator(s):	Dr. Wang L.Q.
Department:	Mechanical Engineering
Source(s) of Funding:	Block Grant Earmarked for Research
Start Date:	11/2001
Completion Date:	10/2003

Abstract:

To numerically study the fully developed, two-dimensional (2D) bifurcation-driven multiplicity and the stability of forced convection in channels of square cross-section with the streamwise curvature; the spanwise rotation in either positive or negative direction; and the wall heating/cooling in general and the effects of system rotation in particular.

Project Title:	Development of integral theorems
Investigator(s):	Dr. Wang L.Q.
Department:	Mechanical Engineering
Source(s) of Funding:	Leung Kau Kui Research and Teaching Endowment Fund
Start Date:	11/2002

Abstract:

The project uses generalized functions as tools to develop an extensive set of 252 spatial integral theorems useful in physical and engineering analysis of many systems, those involving multiscale phenomena in particular.

Project Title:	Multiplicity and stability of liquid flow and heat transfer in microchannels
Investigator(s):	Dr. Wang L.Q.
Department:	Mechanical Engineering
Source(s) of Funding:	Block Grant Earmarked for Research
Start Date:	11/2003

Abstract:

To visualize single-phase liquid flow and temperature fields numerically; to quantify when and to what extent electric double-layer (EDL), surface roughness, entrance and three dimensional transport effects become important in microchannels; to reconcile inconsistencies in the reported friction and heat transfer data in the literature; to develop reliable design tools of correlating relations for friction factors and heat transfer coefficients.

List of Research Outputs

Duan Q., Wang L. and Twizell E.H., A novel approach to the convexity control of interpolant curves, Communications in Numerical Methods in Engineering. John Wiley & Sons, Ltd., 2003, 19: 833-845.

Wang L., A critical review of turbulence modeling: physical constraints and physics-preserving models, Proceedings of First International Conference on Sustainable Energy and Green Architecture, SEGA 2003. Bangkok, Thailand, SEGA012.

Wang L. and Yang T., Bifurcation and stability of forced convection in curved ducts of square cross-section, International Journal of Heat and Mass Transfer. Elsevier, 2004, 47: 2971-2987.

Wang L., Constitutive theory of heat transfer: generalized Fourier law, Proceedigns of First International Conference on Sustainable Energy and Green Architecture, SEGA 2003. Bangkok, Thailand, SEGA013.

Wang L., Wei H.C. and Zhou X.S., Engineering Numerical Aualysis: Problems adn Solutions. Jinan, China, Shandong University Press, 2004, 1-577.

Wang L., Scale-up theorems and their applications, Proceedings of 2003 National Fluid Mechanics Conference for Yong Scientists. Xian, China, 2003, 7-8.

Wang L., Visualization of flows in channels with curvature, rotation or micro-sizes, Proceedings of the Sixth National Conference on Experimental Fluid Mechanics. Taiyuan, China, CSTAM and CARS, 2004, p. 54.

Researcher : Wang Q

List of Research Outputs

Wang Q., Lam J., Xu S. and Zhang Q., Delay-dependent H_¥ model reduction for time-varying delay systems, Proceedings of 2003 Intelligent Automation Conference. Hong Kong, 2003, 1: 345-350.

Researcher : Wang X

List of Research Outputs

Wang X., Generialized artificial finger joint design process employing reverse engineering techniques, M.Phil. Thesis. Hong Kong, The University of Hong Kong, 2003, 1-192.

Researcher : Wo PC

List of Research Outputs

Wo P.C. and Ngan A.H.W., Investigation of slip transmission behavior across grain boundaries in polycrystalline Ni₃Al using nanoindentatoin, Journal of Materials Research. Pittsburg, USA, Materials Research Society, 2004, 19: 189-201.

Researcher : Wong KS

List of Research Outputs

Wong K.S., Ph.D. Thesis, Improving the Performance of Lifts Using Artificial Intelligence Techniques. Hong Kong, The University of Hong Kong, 2003, 1-151.

Researcher : Xu S

List of Research Outputs

Chen B., Lam J. and Xu S., New observed-based guaranteed cost control for neutral delay systems, Journal of Systems and Control Engineering. IMechE, 2004, 218(3): 227-235.

Galkowski K., Lam J., Xu S. and Lin Z., LMI approach to stability analysis of three-dimensional systems, Bulletin of the Polish Academy of Sciences. 2003, 51(4): 362-379.

Galkowski K., Lam J., Rogers E., Xu S., Sulikowski B., Paszke W. and Owens D.H., LMI based stability analysis and robust controller design for discrete linear repetitive processes, International Journal of Robust and Nonlinear Control. John Wiley & Sons, Ltd., 2003, 13(13): 1195-1211.

Galkowski K., Paszke W., Rogers E., Xu S., Lam J. and Owens D.H., Stability and control of differential linear reptitive processes using LMI setting, IEEE Transactions on Circuits & Systems II. 2003, 50(9): 662-666.

Paszke W., Lam J., Galkowski K., Xu S. and Rogers E., H_¥ control of 2D state-delayed systems in FM form, Proceedings of IFAC Workshop on Time-Delay Systems. Rocquencourt, France, 2003, 6 pp.

Xu S., Lam J. and Zou Y., H_¥ filtering for singular systems, IEEE Transactions on Automatic Control. 2003, 48(12): 2217-2222.

Xu S., Lam J., Liu W.Q. and Zhang Q.L., H_¥ model reduction for singular systems: continuous-time case, IEE Proceedings Control Theory & Applications. 2003, 150(6): 637-641.

Xu S., Lam J., Wang J.L. and Yang G.H., Non-fragile positive real control for uncertain linear neutral delay systems, Systems and Control Letters. Elsevier, 2004, 52: 57-74.

Xu S., Lam J. and Zou Y., Robust H_¥ control for a class of discrete-time nonlinear systems with state delay and parameter uncertainty, Proceedings of 2003 Intelligent Automation Conference. Hong Kong, 2003, 1: 379-383.

Xu S., Lam J. and Yang C., Robust H_¥ control for uncertain singular systems with state delay, International Journal of Robust and Nonlinear Control. John Wiley & Sons, Ltd., 2003, 13(13): 1213-1223.

Xu S., Lam J. and Yang C., Robust stability analysis for descriptor systems with state delay and parameter uncertainty, ADCHEM2003. Hong Kong, 2004, 5 pp.

Xu S. and Lam J., Robust stability for uncertain discrete singular systems with state delay, Asian Journal of Control. 2003, 5(3): 399-405.

Researcher : Yam CW

List of Research Outputs

Li Y. and Yam C.W., Designing thermal mass in naturally ventilated buildings, International Journal of Ventilation. Coventry, UK, Veetech Ltd., 2004, 2(4): 313-324.

Li Y. and Yam C.W., Designing thermal mass in naturally ventilated buildings, Proceedings of the First International Workshop in Natural Ventilation. Tokyo, Japan, 2003, 15pp.

Yam C.W., M.Phil. Thesis, Effect of Internal Thermal Mass on Building Thermal Performance. Hong Kong, The University of Hong Kong, 2003, 1-197.

Researcher : Yan Y

List of Research Outputs

Yan Y. and Tan S.T., Adding draft angles on mechanical components containing constant radius blending surfaces, Computer-aided Design. Elsevier, 2004, 36(7): 565-580.

Researcher : Yang C

List of Research Outputs

Soh A.K. and Yang C., Numerical modeling of interactions between a macro-crack and a cluster of micro-defects, Engineering Fracture Mechanics. UK, Elsevier, 2004, 71(2): 193-217.

Researcher : Yang T

List of Research Outputs

Wang L. and Yang T., Bifurcation and stability of forced convection in curved ducts of square cross-section, International Journal of Heat and Mass Transfer. Elsevier, 2004, 47: 2971-2987.

Researcher : Yang X

List of Research Outputs

Sze K.Y., Yang X. and Fan H., Electric assumptions for piezoelectric laminate analysis, International Journal of Solids and Structures. Elsevier, 2004, 41: 2363-2382.

Sze K.Y., Yang X. and Yao L.Q., Stabilized plane and axisymmetric piezoelectric finite element models, Finite Elements in Analysis and Design. Elsevier, 2004, 40: 1105-1122.

Researcher : Yang Z

List of Research Outputs

Chen Y.H. and Yang Z., Copy and paste the geometry of physical objects into computer-aided design models, Proceeding of 5th International Conference on Computer Aided Industrial Design and Conceptual Design. Hangzhou, China, 2003, 338-347.

Chen Y.H. and Yang Z., Haptic modeling as an integrating tool for product development, Proceedings of 19th International Conference on CAD/CAM Robotics and Factory of the Future. Kuala Lumpur, Malaysia, 2003, 1: 304-310.

Chen Y.H. and Yang Z., Haptic rendering based on spatial run-length encoding, Robotics and Computer-Integrated Manufacturing. Elsevier, 2003, 20: 237-246.

Chen Y.H., Wang Y.Z. and Yang Z., Towards a haptic virtual coordinate measuring machine, International Journal of Machine Tools & Manufacture. Elsevier, 2004, 44: 1009-1017.

Yang Z. and Chen Y.H., Haptic rendering of milling, Eurohaptics 2003. Dublin, Ireland, 206-217.

Yang Z., Chen Y.H. and Sze W.S., Using AHP and Fuzzy sets to determine the build orientation in layer-based machining, International Journal Computer Integrated Manufacturing. Taylor & Francis Ltd., 2003, 16(6): 398-408.

Researcher : Yeung KH

List of Research Outputs

Sumathy K., Yeung K.H. and Li Y., Technology development in the solar adsorption refrigeration systems, Progress in Energy and Combustion Science. UK, Elsevier, 2003, 29: 301-327.

Yeung K.H., An optimization model for a solar hybrid water heating and adsorption ice-making system, M.Phil. Thesis. Hong Kong, The University of Hong Kong, 2003, 1-125.

Yeung K.H. and Sumathy K., Thermodynamic analysis and optimization of a combined adsorption heating and cooling system, International Journal of Energy Research. John Wiley & Sons, Ltd., 2003, 27: 1299-1315.

Researcher : Yin X

List of Research Outputs

Yin X., Chang J., Wang J., Wu C. and Leung Y.C., Production of methanol fuel via biomass gasification, Coal Conversion. China, 2003, 26: 26-30.

Yin X., Leung Y.C., Chang J. and Wu C.Z., Study on biomass gasification methanol synthesis system, Proceedings of International Conference on Energy and the Environment. China, Shanghai Scientfic & Technical Publishers, 2003, 261-267.

Researcher : Yip TL

List of Research Outputs

Zhang D., Yip T.L. and Chwang A.T.Y., Numerical simulation of ship-generated waves and ocean swells in a harbour, Proceedings of XXX IAHR Congress, Theme A – Coastal Environment: Processes and Integrated Management. Thessaloniki, Greece, 2003, 347-354.

Researcher : Zhang D

List of Research Outputs

Zhang D., Yip T.L. and Chwang A.T.Y., Numerical simulation of ship-generated waves and ocean swells in a harbour, Proceedings of XXX IAHR Congress, Theme A – Coastal Environment: Processes and Integrated Management. Thessaloniki, Greece, 2003, 347-354.

Researcher : Zhang X

List of Research Outputs

Zhang X., Chen K.Z. and Feng X.A., Optimization of material properties needed for material design of components made of multi-heterogeneous materials, Materials & Design. Exeter, UK, Elsevier Ltd., 2004, 25: 369-378.

Researcher : Zheng J

List of Research Outputs

Zheng J., Chan K.W. and Gibson I., Constrained deformation of freeform surfaces using surface features for interactive design, International Journal of Adavenced Manufacturing Technology. UK, Springer-Verlag London Ltd., 2003, 22: 54-67.

Researcher : Zheng S

List of Research Outputs

Sze K.Y., Zheng S. and Lo S.H., A stabilized eighteen-node solid element for hyperelastic analysis of shells, Finite Elements in Analysis and Design. Elsevier, 2004, 40: 319-340.

Researcher : Zhu F

List of Research Outputs

Chen K.Z., Zhu F. and Feng X.A., Generating layered manufacturing informatioon for components made of a multiphase perfect material from their CAD models, Proceedings of International CAD Conference. Pattaya Beach, Thailand, 2004, Hot-mod-02.

Zhu F. and Chen K.Z., A CAD modeling system for the components made of multi heterogeneous materials, Proceedings of the 9th IEEE International Conference on Emerging Technologies and Factory Automation. Lisbon, Portugal, 2003, 1253-1248.

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