Dept of Mechanical Engg

DEPARTMENT OF MECHANICAL ENGINEERING

Researcher : Bakountouzis LN

Project Title:	Decompression of diesel engines in ship propulsion
Investigator(s):	Bakountouzis LN
Department:	Mechanical Engineering
Source(s) of Funding:	University Research Committee / Committee on Research and Conference Grants - General Award
Start Date:	12/1987
Completion Date:	08/2005

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):	Bakountouzis LN
Department:	Mechanical Engineering
Source(s) of Funding:	University Research Committee / Committee on Research and Conference Grants - General Award
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 AT

Project Title:	Strategic guidelines for future development to achieve sustainable air quality in urban areas
Investigator(s):	Chan ATY
Department:	Mechanical Engineering
Source(s) of Funding:	Other Funding Scheme
Start Date:	09/1999

Abstract:

To develop a list of comprehensive strategic planning and development guidelines for urban area development in order to achieve sustainable air quality in Hong Kong.

Project Title:	Evaluation of air pollution indication system in Hong Kong
Investigator(s):	Chan ATY
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):	Chan ATY
Department:	Mechanical Engineering
Source(s) of Funding:	Small Project Funding
Start Date:	11/2002
Completion Date:	10/2004

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):	Chan ATY, Li Y
Department:	Mechanical Engineering
Source(s) of Funding:	Merit Award for RGC CERG Funded Projects
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):	Chan ATY, Li Y
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
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:	Correlation between urban morphological attributes and air pollution in urban areas in Hong Kong
Investigator(s):	Chan ATY
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
Start Date:	09/2004

Abstract:

To identify the urban morphological attributes that are responsible for air pollution in urban areas through analytical and experimental investigation.

Project Title:	Correlation between urban morphological attributes and air pollution in urban areas in Hong Kong
Investigator(s):	Chan ATY
Department:	Mechanical Engineering
Source(s) of Funding:	Merit Award for RGC CERG Funded Projects
Start Date:	01/2005

Abstract:

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Project Title:	Study of carbon fibres and their applications in domestic electrical appliances
Investigator(s):	Chan ATY, Cheung DHK, Cheung KC, Tse TH
Department:	Mechanical Engineering
Source(s) of Funding:	Matching Grant for Joint Research
Start Date:	05/2005

Abstract:

Carbon fibres are electrical conductors with electrical, mechanical and thermal properties very different from that of a traditional metallic or alloy conductor. By corretly dopting it with impurities, the properties of carbon fibre may be altered to suit specific appliction requirement as heating elements in domestic applicances. The following body of knowledge is requried to systematically apply the material to consumer product applications: relationship between the physical and chemical composition of the carbon fibres and its electrical, mechanical and thermal properties; the electrical, mechanical and thermal properties of "carbon-fibre based" materials such as thin film and emulsion. The university is in the position to provide the know-how and research facilities to collect and compile the said body of knowledge which will allow the applicant company to apply it the design of new types of key components in domestic electrical applicances to improve their performances and thus provide the necessary competitive edge in the international marketplace.

List of Research Outputs

Chan A.T.Y. and Yeung V.C.H., Implementing buildings energy codes in Hong Kong: energy savings, environmental impacts and cost, Energy and Buildings. Amsterdam, Netherlands, Elsevier, 2004, 37: 631-642.

Chan A.T.Y., Universitas 21 Fellowship, Universitas 21 Consortium. 2005.

Lai K.K. and Chan A.T.Y., Computational study on indoor/outdoor air quality relationship in urban buildings, Proceedings of 2005 Joint ASCE/ASME/SES Conference on Mechanics and Materials. Baton Rouge, USA, ASCE, 2005, CD-ROM: 6pp.

Li K.Y.K. and Chan A.T.Y., Management of radon in tunnel drilling, Journal of Construction Engineering and Management. Reston, USA, 0733-9364, 2004, 130(5): 699-707.

Siddheshwar P.G., Sekhar G.N. and Chan A.T.Y., MHD flow over a nonlinearly stretching sheet, Journal of Science, Technology and Engineering. Bangalore, India, Bangalore University, 2005, 17: 76-81.

Siddheshwar P.G. and Chan A.T.Y., Thermorheological effect on Bénard and marangoni convections in anisotropic porous media, Hydrodynamics VI - Theory and Applications - Proceedings of 6th International Conference on Hydrodynamics. London, UK, Taylor & Francis Group, 2004, 471-476.

Researcher : Chan BP

Project Title:	Photochemical crosslinking (PC) technology in fabrication of collagen-based scaffolds for tissue engineering
Investigator(s):	Chan BP
Department:	Mechanical Engineering
Source(s) of Funding:	Seed Funding Programme for Basic 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.

Project Title:	Photochemical crosslinking (PC) technology in fabrication of collagen-based scaffolds for tissue engineering - An engineered nerve conduit in rat sciatic nerve repair
Investigator(s):	Chan BP
Department:	Mechanical Engineering
Source(s) of Funding:	Incentive Award for RGC CERG Fundable But Not Funded Projects
Start Date:	07/2004

Abstract:

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Project Title:	Tissue engineering of nerve conduits with improved features using photochemically crosslinked collagen for nerve regeneration
Investigator(s):	Chan BP, So KF
Department:	Mechanical Engineering
Source(s) of Funding:	Seed Funding Programme for Basic Research
Start Date:	01/2005

Abstract:

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List of Research Outputs

Chan B.P., A photochemical crosslinking technology for tissue engineering - enhancement of the physico-chemical properties of collagen-based scaffolds, Proceedings of SPIE. Bellingham, USA, SPIE, 2005, 5695: 317-327.

Chan B.P., Modification of the physicochemical properties of collagen scaffolds using photochemical crosslinking, Regenerate International Conference and Exposition. 2005, CD-ROM: A005.

Chan B.P., Sato M., Vacanti J.P., Kochevar I.E. and Redmond R.W., Photochemical bonding of epithelial cell-seeded collagen lattice to rat muscle layer for esophageal tissue engineering - a pilot study, Proceedings of SPIE. Bellingham, USA, SPIE, 2005, 5686: 282-290.

Researcher : Chan CK

List of Research Outputs

Chan C.K. and Tan S.T., Extreme points of a large 3D point set along multiple directions, Computer-aided Design. Elsevier, 2005, 37(1): 17-34.

Chan C.K. and Tan S.T., Putting objects into a cylindrical/rectangular bounded volume, Computer-aided Design. Elsevier, 2004, 36(12): 1189-1204.

Researcher : Chan CK

List of Research Outputs

Chan C.K. and Tan S.T., Extreme points of a large 3D point set along multiple directions, Computer-aided Design. Elsevier, 2005, 37(1): 17-34.

Chan C.K. and Tan S.T., Putting objects into a cylindrical/rectangular bounded volume, Computer-aided Design. Elsevier, 2004, 36(12): 1189-1204.

Researcher : Chan CW

Project Title:	Computation intelligent fault detection and isolation methods for nonlinear systems
Investigator(s):	Chan CW, Zhang H.Y.
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
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):	Chan CW
Department:	Mechanical Engineering
Source(s) of Funding:	Small Project Funding
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.

Project Title:	Application of neuro-fuzzy networks to gene identification
Investigator(s):	Chan CW
Department:	Mechanical Engineering
Source(s) of Funding:	Incentive Award for RGC CERG Fundable But Not Funded Projects
Start Date:	07/2004

Abstract:

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Researcher : Chan KW

Project Title:	Computer-aided mould design and manufacture of thermoformed PVC sheets
Investigator(s):	Chan KW
Department:	Mechanical Engineering
Source(s) of Funding:	Other Funding Scheme
Start Date:	01/2002

Abstract:

To develop a computer-aided design and manufacturing process for producing thermoformed PVC sheets for packaging purpose.

Project Title:	A computer-aided mould design system based on STL CAD model
Investigator(s):	Chan KW, Sze WS, Tan ST
Department:	Mechanical Engineering
Source(s) of Funding:	Innovation and Technology Support Programme
Start Date:	08/2003
Completion Date:	01/2005

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):	Chan KW
Department:	Mechanical Engineering
Source(s) of Funding:	Merit Award for RGC CERG Funded Projects
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):	Chan KW
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
Start Date:	12/2003

Abstract:

List of Research Outputs

Tam K.W. and Chan K.W., Case Study: A novel surface scanning system , Journal of Robotic System. England, UK, Wiley Periodicals, Inc., 2005, (22)7: 359-366.

Tam K.W. and Chan K.W., Thermoforming mould design using a reverse engineering approach, Proceedings of the International Manufacturing Leaders Forum on "Global Competitive Manufacturing" 2005. Australia, Centre for Advanced Manufacturing Research, CD-ROM: 8pp.

Researcher : Chan SH

List of Research Outputs

Chan S.H. and Ngan A.H.W., Statistical distribution of contact forces in packings of deformable spheres, Mechanics of Materials. Elsevier, 2005, 37: 493-506.

Chan S.H., Statistical distribution of forces in random packings of spheres and honeycomb structures, M.Phil. Thesis. Hong Kong, The University of Hong Kong, 2004, 1-126.

Researcher : Chen K

Project Title:	A systematic method for designing heterogeneous components with special functions using Axiomatic Design and Topology Optimization
Investigator(s):	Chen KZ
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
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):	Chen KZ
Department:	Mechanical Engineering
Source(s) of Funding:	Incentive Award for RGC CERG Fundable But Not Funded Projects
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):	Chen KZ
Department:	Mechanical Engineering
Source(s) of Funding:	Seed Funding Programme for Basic Research
Start Date:	02/2004
Completion Date:	07/2005

Abstract:

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

Project Title:	Study of manufacturing process and facility for components made of multi heterogeneous materials by means of virtual prototyping
Investigator(s):	Chen KZ
Department:	Mechanical Engineering
Source(s) of Funding:	Incentive Award for RGC CERG Fundable But Not Funded Projects
Start Date:	07/2004

Abstract:

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Project Title:	Virtual component modelling for components made of a multiphase perfect material
Investigator(s):	Chen KZ
Department:	Mechanical Engineering
Source(s) of Funding:	Seed Funding Programme for Basic Research
Start Date:	02/2005

Abstract:

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Researcher : Chen KZ

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

Abstract:

Project Title:	A genetic-engineering-based design theory and methodology for product innovation
Investigator(s):	Chen KZ
Department:	Mechanical Engineering
Source(s) of Funding:	Incentive Award for RGC CERG Fundable But Not Funded Projects
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):	Chen KZ
Department:	Mechanical Engineering
Source(s) of Funding:	Seed Funding Programme for Basic Research
Start Date:	02/2004
Completion Date:	07/2005

Abstract:

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

Project Title:	Study of manufacturing process and facility for components made of multi heterogeneous materials by means of virtual prototyping
Investigator(s):	Chen KZ
Department:	Mechanical Engineering
Source(s) of Funding:	Incentive Award for RGC CERG Fundable But Not Funded Projects
Start Date:	07/2004

Abstract:

Refer to hard copy

Project Title:	Virtual component modelling for components made of a multiphase perfect material
Investigator(s):	Chen KZ
Department:	Mechanical Engineering
Source(s) of Funding:	Seed Funding Programme for Basic Research
Start Date:	02/2005

Abstract:

Refer to hard copy

List of Research Outputs

Chen K.Z., Wang F., Feng X.Y. and Feng X.A., Behavior modeling for the spraying device in the layered manufacturing process for the components made of a multiphase perfect material, Proceedings of the 5th Annual International Conference on Rapid Product Development. Bloemfontein, South Africa, Central University of Technology, 2004, 12pp.

Chen K.Z. and Feng X.A., Design and modeling methods for components made of multi-heterogeneous materials in high-tech applications, In: Cornelius T. Leondes, Volume 2 Information Technology, Intelligent Knowledge-Based Systems: Business and Technology in the New Millennium. Norwell, Massachusetts, USA, Kluwer Academic Publishers, 2005, 177-223.

Chen K.Z., Feng X.A. and Chen X.C., Reverse deduction of virtual chromosomes of manufactured products for their gene-engineering-based innovative design, Computer-aided Design. Exeter, UK, Elsevier Science Ltd., 2005, 37: 1191-1203.

Liu S.T., Chen K.Z. and Feng X.A., Prediction of viscoelastic property of layered materials, International Journal of Solids and Structures. Exeter, UK, Elsevier Science Ltd., 2004, 41: 3675-3688.

Wang F., Chen K.Z. and Feng X.A., Novel implementations of plasma spraying for fabricating components made of a multihpase perfect material, Proceedings of the 15th Annual Solid Freeform Fabrication Symposium. Austin, USA, The University of Texas at Austin, 2004, 293-303.

Wang F., Chen K.Z. and Feng X.A., Study on hybrid layered manufacturing technologies for components made of a multiphase perfect material, Proceedings of International Conference on Manufacturing Automation. Suffolk, UK, Professional Engineering Publishing, 2004, 755-764.

Zhang X., Chen K.Z. and Feng X.A., Material design of components made of multi-materials and its applications in high-tech product design, Proceedings of International Conference on Manufacturing Automation. Suffolk, UK, Professional Engineering Publishing, 2004, 167-174.

Zhu F., Chen K.Z. and Feng X.A., Converting a CAD model into a manufacturing model for the component made of a multiphase perfect material, Proceedings of the 15th Annual Solid Freeform Fabricaton Symposium. Austin, USA, The University of Texas at Austin, 2004, 532-543.

Zhu F., Chen K.Z. and Feng X.A., Development of a CAD modeling system for components made of multi heterogeneous materials, Materials & Design. Exeter, UK, Elsevier Science Ltd., 2005, 26: 113-126.

Zhu F., Chen K.Z., Wang F. and Feng X.A., Study on CAD modeling for objects with a multiphase perfect material, Proceedings of International Conference on Manufacturing Automation. Suffolk, UK, Professional Engineering Publishing, 2004, 133-142.

Researcher : Chen Q

Project Title:	The effect of grain boundary elements on the microstructures and properties of single crystal and bi-crystal superalloys
Investigator(s):	Chen QZ, Duggan BJ
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
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):	Chen QZ, Knowles D.M.
Department:	Mechanical Engineering
Source(s) of Funding:	Seed Funding Programme for Basic 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.

Project Title:	Nucleation and growth of deformation twins in a nickel-based single crystal superalloy CMSX-4
Investigator(s):	Chen QZ, Knowles D.M.
Department:	Mechanical Engineering
Source(s) of Funding:	Merit Award for RGC CERG Funded Projects
Start Date:	07/2003
Completion Date:	07/2004

Abstract:

To carry out a TEM/SEM study on (1) nucleation and (2) growth of deformation twins at 750-950 degree under 350-750 MPa.

Project Title:	Nucleation and growth of deformation twins in a nickel-based single crystal superalloy CMSX-4
Investigator(s):	Chen QZ, Knowles D.M.
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
Start Date:	07/2003
Completion Date:	07/2004

Abstract:

To carry out a TEM/SEM study on (1) nucleation and (2) growth of deformation twins at 750-950 degree under 350-750 MPa.

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):	Chen QZ, Duggan BJ
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
Start Date:	09/2001
Completion Date:	08/2004

Abstract:

Project Title:	Microstructure and its effect on mechanical properties of cast Fe-Ni-Cr-based alloys
Investigator(s):	Chen QZ, Knowles D.M.
Department:	Mechanical Engineering
Source(s) of Funding:	Seed Funding Programme for Basic Research
Start Date:	10/2002
Completion Date:	09/2004

Abstract:

Project Title:	Nucleation and growth of deformation twins in a nickel-based single crystal superalloy CMSX-4
Investigator(s):	Chen QZ, Knowles D.M.
Department:	Mechanical Engineering
Source(s) of Funding:	Merit Award for RGC CERG Funded Projects
Start Date:	07/2003
Completion Date:	07/2004

Abstract:

To carry out a TEM/SEM study on (1) nucleation and (2) growth of deformation twins at 750-950 degree under 350-750 MPa.

Project Title:	Nucleation and growth of deformation twins in a nickel-based single crystal superalloy CMSX-4
Investigator(s):	Chen QZ, Knowles D.M.
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
Start Date:	07/2003
Completion Date:	07/2004

Abstract:

To carry out a TEM/SEM study on (1) nucleation and (2) growth of deformation twins at 750-950 degree under 350-750 MPa.

List of Research Outputs

Chen Q.Z. and Duggan B.J., On cells and microbands formed in an interstitial-free steel during cold rolling at low to medium reductions, Metallurgical and Materials Transactions A. 2004, 35A: 3423-3430.

Researcher : Chen YH

Project Title:	Haptic sculpting of computer generated holography (CGH) for conceptual design
Investigator(s):	Chen YH
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
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):	Chen YH
Department:	Mechanical Engineering
Source(s) of Funding:	Incentive Award for RGC CERG Fundable But Not Funded Projects
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.

Project Title:	Haptic interacting and editing of heterogeneous objects in computer aided systems
Investigator(s):	Chen YH
Department:	Mechanical Engineering
Source(s) of Funding:	Incentive Award for RGC CERG Fundable But Not Funded Projects
Start Date:	07/2004

Abstract:

Refer to hard copy

Project Title:	Haptic modelling and filtering in reverse engineering model refinement
Investigator(s):	Chen YH
Department:	Mechanical Engineering
Source(s) of Funding:	Seed Funding Programme for Basic Research
Start Date:	01/2005

Abstract:

Refer to hard copy

List of Research Outputs

Chen Y.H., Yang Z.Y. and Wang Y.Z., Haptic modeling for a virtual coordinate measuring machine, International Journal of Production Research. Talor & Francis, 2005, 43(9): 1861-1878.

Chen Y.H., Yang Z.Y. and Lian L., On the development of a haptic system for rapid product development, Computer-aided Design. Elsevier, 2005, 37: 559-569.

Lian L. and Chen Y.H., Multi-resolution strategies for haptic simulation of heterogeneous deformable models, The 6th International Conference on Computer-aided Industrial Design & Conceptual Design. World Publishing Corporation, 2005, 886-890.

Yang Z.Y. and Chen Y.H., A reverse engineering method based on haptic volume removing, Computer-aided Design. Elsevier, 2005, 37: 45-54.

Yang Z.Y., Lian L. and Chen Y.H., Haptic aided ergonomic evaluation in mass customized product design, International Conference on Manufacturing Automation. London, UK, Professional Engineering Publishing, 2004, 181-188.

Yang Z.Y., Lian L. and Chen Y.H., Haptic function evaluation of multi-material part design, Computer-aided Design. Elsevier, 2005, 37: 727-736.

Yang Z.Y. and Chen Y.H., Inspection path generation in haptic virtual CMM, Computer-aided Design & Applications. Bangkok, Thailand, CAD Solutions Company, 2005, 2(1-4): 273-282.

Researcher : Cheng KLA

List of Research Outputs

Cheng K.L.A. and Cheung W.L., Morphology and tensile strength of PA6 modified PET/PP extrudates, Journal of Materials Science. Norwell, USA, Kluwer Academic Publishers, 2004, 39: 6069-6072.

Researcher : Cheng WK

List of Research Outputs

Leung Y.C. and Cheng W.K., Emission characteristics of in-service diesel vehicles in Hong Kong using biodiesel and its blends, Motor Vehicle Emission Control Workshop (MoVE2004). Hong Kong, 2004, CD-ROM: 6pp.

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):	Cheung KC
Department:	Mechanical Engineering
Source(s) of Funding:	Low Budget High Impact Programme
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):	Cheung KC
Department:	Mechanical Engineering
Source(s) of Funding:	Small Project Funding
Start Date:	11/2002

Abstract:

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

Researcher : Cheung WL

Project Title:	Laser energy absorption properties of polymer based composite powders for selective laser sintering
Investigator(s):	Cheung WL, Gibson I
Department:	Mechanical Engineering
Source(s) of Funding:	Merit Award for RGC CERG Funded Projects
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):	Cheung WL, Gibson I
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
Start Date:	09/2003

Abstract:

Project Title:	Selective laser sintering of porous biopolymer and biocomposite scaffolds for bone tissue engineering
Investigator(s):	Cheung WL
Department:	Mechanical Engineering
Source(s) of Funding:	Incentive Award for RGC CERG Fundable But Not Funded Projects
Start Date:	07/2004

Abstract:

Refer to hard copy

Project Title:	Fatigue properties of high density polyethylene fibre reinforced edentulous dentures
Investigator(s):	Cheung WL, Chow TW, Cheng YY
Department:	Mechanical Engineering
Source(s) of Funding:	Seed Funding Programme for Basic Research
Start Date:	03/2005

Abstract:

Refer hard copy

List of Research Outputs

Cheng K.L.A. and Cheung W.L., Morphology and tensile strength of PA6 modified PET/PP extrudates, Journal of Materials Science. Norwell, USA, Kluwer Academic Publishers, 2004, 39: 6069-6072.

Gibson I., Cheung L.K., Chow S.P., Cheung W.L., Beh S.L., Savalani M.M. and Lee S.H., The use of rapid prototyping to assist medical applications, Proceedings of the 10th Assises Europoeennes du Prototypage Rapide. Paris, France, AFPR, 2004, CD-ROM: 1-8.

Lee S.H., Zhou W., Cheung W.L. and Wang M., Producing polymeric scaffolds for bone tissue engineering using the selective laser sintering technique, Transactions of the Society For Biomaterials 30th Annual Meeting. Memphis, USA, SFB, 2005, 348.

Lee S.H., Zhou W., Li K.M., Wang M. and Cheung W.L., Selective laser sintering of porous scaffolds for bone tissue engineering, Conference on Biomedical Engineering, BME2004. Hong Kong, HKIE, Biomedical Division, 91-95.

Researcher : Ching WH

List of Research Outputs

Ching W.H., Leung M.K.H., Leung Y.C., Yam W.C., Ng S.P. and Vrijmoed L.L.P., Photocatalytic degradation of gaseous formaldehyde by Sol-Gel TiO₂ thin film coated on glass, Proceedings of 2004 Asia-Pacific Conference of International Solar Energy Society (ISES). Gwangju, Korea, 2004, 561-567.

Leung M.K.H., Leung Y.C., Lam G.C.K. and Ching W.H., Environmental-Friendly Cold Water Thawing Practice. Hong Kong, The University of Hong Kong, 2004, 1-26.

Leung M.K.H., Ching W.H., Leung Y.C. and Lam G.C.K., Theoretical study of heat transfer with moving phase-change interface in thawing of frozen food, Journal of Physics D: Applied Physics. UK, IOP Publishing Ltd, 2005, 38: 477-482.

Researcher : Ching WH

List of Research Outputs

Leung M.K.H., Leung Y.C., Lam G.C.K. and Ching W.H., Environmental-Friendly Cold Water Thawing Practice. Hong Kong, The University of Hong Kong, 2004, 1-26.

Researcher : Chow HN

List of Research Outputs

Chow H.N., Tan S.T. and Sze W.S., Re-designing heterogeneous objects by attribute discretization, Computer-Aided Design and Applications. Bangkok, Thailand, CAD Solutions Company Ltd., 2005, 2(1-4): 387-392.

Researcher : Chow KW

Project Title:	The dynamics and propagation of nonlinear waves in interacting wavepackets systems
Investigator(s):	Chow KW, Grimshaw R.H.J.
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
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):	Chow KW, Oikawa M., Maruno K.I.
Department:	Mechanical Engineering
Source(s) of Funding:	Incentive Award for RGC CERG Fundable But Not Funded Projects
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.

Project Title:	Periodic patterns in coupled hydrodynamical and optical waveguides
Investigator(s):	Chow KW, Conte R.M.J.
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
Start Date:	01/2005

Abstract:

To examine if wave propagation will persist for coupled waveguides of increasing complexity. Existence of solitary periodic, or generally these 'clusters' of solitary waves will promote our ability to characterize the physical problem under investigation, and will reveal the significant underlying structure of the model employed.

Project Title:	Periodic patterns in coupled hydrodynamical and optical waveguides
Investigator(s):	Chow KW
Department:	Mechanical Engineering
Source(s) of Funding:	Merit Award for RGC CERG Funded Projects
Start Date:	01/2005

Abstract:

Refer to hard copy

List of Research Outputs

Chow K.W., Poon C.K. and Zhang D., A coupled system of long wave – short waves with a mismatch in group velocities, The 57th American Physical Society Division of Fluid Dynamics Meeting, Seattle, Washington, USA. 2004.

Gurarie D. and Chow K.W., Vortex arrays for sinh-Poisson equation of two-dimensional fluids: Equilibria and stability, Physics of Fluids. USA, AIP, 2004, 16(9): 3296-3305.

Mak C.C., Chow K.W. and Nakkeeran K., Soliton pulse propagation in averaged dispersion-managed optical fiber system, Journal of the Physical Society of Japan. Japan, The Physical Society of Japan, 2005, 74(5): 1449-1456.

Nakkeeran K. and Chow K.W., The propagation of solitons in media with nonuniformities, Fourth World Congress of Nonlinear Analysts, Orlando, Florida, USA. 2004.

Poon C.K., Lai W.C.D. and Chow K.W., Long wave – short waves with a slight detuning in group velocities, Second Shanghai – Hong Kong Forum on Mechanics and its Applications, Shanghai, China. 2005.

Poon C.K., Lai W.C.D. and Chow K.W., Simulation of a coupled system of long wave – short waves with a slight detuning in group velocities, Fourth MIT Conference on Computational Fluid and Solid Mechanics – Focus: Fluid-Structure Interactions, Cambridge, Massachusetts, USA. 2005.

Rogers C., Schief W.K., Chow K.W. and Mak C.C., On Tzitzeica vortex streets and their reciprocals in subsonic gas dynamics, Studies in Applied Mathematics. UK, Blackwell Synergy, 2005, 114(3): 271-283.

Tsang S.C., Nakkeeran K., Malomed B.A. and Chow K.W., Coupled periodic waves with opposite dispersions in a nonlinear optical fiber, Optics Communications. Netherlands, Elsevier, 2005, 249: 117-128.

Tsang S.C. and Chow K.W., The evolution of periodic waves of the coupled nonlinear Schrodinger equations, Mathematics and Computers in Simulation. Netherlands, Elsevier, 2004, 66: 551-564.

Researcher : Chwang ATY

Project Title:	Theoretical modeling and numerical simulation of nanofluid dynamics
Investigator(s):	Chwang ATY
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
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:	Unsteady free-surface far wake generated by a body moving in a viscous fluid
Investigator(s):	Chwang ATY
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
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:	An investigation of hydrodynamic interaction between two bodies
Investigator(s):	Chwang ATY, Ren S.
Department:	Mechanical Engineering
Source(s) of Funding:	Merit Award for RGC CERG Funded Projects
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):	Chwang ATY, Ren S.
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
Start Date:	11/2003

Abstract:

Project Title:	Wrist pulse contour screening programme
Investigator(s):	Chwang ATY, Lau CP
Department:	Mechanical Engineering
Source(s) of Funding:	Seed Funding Programme for Basic 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.

Project Title:	Relationship between wrist-pulse contours and cardiovascular conditions
Investigator(s):	Chwang ATY
Department:	Mechanical Engineering
Source(s) of Funding:	Incentive Award for RGC CERG Fundable But Not Funded Projects
Start Date:	07/2004

Abstract:

Refer to hard copy

List of Research Outputs

Chwang A.T.Y., Associate Editor, International Journal of Offshore and Polar Engineering. 2005.

Chwang A.T.Y., Effect of hydrodynamic interaction on the motion of a rotating body (Invited Lecture), Journal of the Brazilian Society of Mechanical Sciences and Engineering. ABCM, 2004, XXVI(4): 349-354.

Chwang A.T.Y., Member of the Advisory Board, Journal of Hydrodynamics. 2005.

Chwang A.T.Y., Member of the Advisory Board, Theoretical and Computational Fluid Dynamics. 2005.

Chwang A.T.Y., Member of the Editorial Board, China Ocean Engineering. 2005.

Chwang A.T.Y., Member of the Editorial Board, Journal of Marine Science and Technology. 2005.

Chwang A.T.Y., Member of the Editorial Board, Journal of Mechanical Engineering Science. 2005.

Chwang A.T.Y., Member of the Editorial Board, Wave Motion. 2005.

Chwang A.T.Y., Zhang D., Lee W.P. and Wong C.P., Verification of field performance of wave-absorbing seawall at Jordan Road reclamation, Proceedings of the International Conference on Coastal Infrastructure Development - Challenges in the 21st Century. Hong Kong, 2004, CD-ROM: 6pp.

Deng L. and Chwang A.T.Y., Experimental study on the occurrence of transverse waves, In: (ed. Hong Youshi), Advances in Applied Mechanics. Beijing, China, Science Press, 2004, 411-414.

Deng L. and Chwang A.T.Y., The depth effect on transverse waves, Proceedings of the 15th International Offshore and Polar Engineering Conference. Seoul, Korea, The International Society of Offshore and Polar Engineers, 2005, 3: 508-511.

Deng L. and Chwang A.T.Y., Transverse waves in a channel with decreasing width, Proceedings of the Sixth International Conference on Hydrodynamics. Perth, Western Australia, 2004, 193-198.

Lu D.Q. and Chwang A.T.Y., Free-surface waves due to a Stokeslet in a viscous fluid of infinite depth, Proceedings of the Sixth International Conference on Hydrodynamics. Perth, Western Australia, 2004, 611-617.

Lu D.Q. and Chwang A.T.Y., Unsteady free-surface waves due to a submerged body in two-dimensional Oseen flows, Journal of Ship Mechanics. 2004, 8(3): 8-18.

Lu D.Q. and Chwang A.T.Y., Unsteady free-surface waves due to a submerged body moving in a viscous fluid, Physical Review E. 2005, 71: 066303.

Yu X. and Chwang A.T.Y., Effect of constriction shape on flows in stenosed channels, American Society of Biomechanics Annual Meeting 2004. Portland, Oregon, USA, CD-ROM: 2pp.

Yu X. and Chwang A.T.Y., Pulsatile flow in a carotid bifurcation model, The Second World Congress for Chinese Biomedical Engineers. Beijing, China, 2004, CD-ROM: 2pp.

Yu X. and Chwang A.T.Y., Unsteady flow in a human carotid model, In: (ed. Hong Youshi), Advances in Applied Mechanics. Beijing, China, Science Press, 2004, 352-356.

Researcher : Deng L

List of Research Outputs

Deng L. and Chwang A.T.Y., Experimental study on the occurrence of transverse waves, In: (ed. Hong Youshi), Advances in Applied Mechanics. Beijing, China, Science Press, 2004, 411-414.

Deng L. and Chwang A.T.Y., The depth effect on transverse waves, Proceedings of the 15th International Offshore and Polar Engineering Conference. Seoul, Korea, The International Society of Offshore and Polar Engineers, 2005, 3: 508-511.

Deng L. and Chwang A.T.Y., Transverse waves in a channel with decreasing width, Proceedings of the Sixth International Conference on Hydrodynamics. Perth, Western Australia, 2004, 193-198.

Researcher : Duggan BJ

Project Title:	Development of an Al-Mg alloy system and thermo mechanical processing route for improved drawability
Investigator(s):	Duggan BJ, Inagaki H.
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
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):	Duggan BJ, Chen QZ, Xu Y.B.
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
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):	Duggan BJ, Penelle R.
Department:	Mechanical Engineering
Source(s) of Funding:	Merit Award for RGC CERG Funded Projects
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):	Duggan BJ, Penelle R.
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
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

Chen Q.Z. and Duggan B.J., On cells and microbands formed in an interstitial-free steel during cold rolling at low to medium reductions, Metallurgical and Materials Transactions A. 2004, 35A: 3423-3430.

Duggan B.J., Tse Y.Y. and Shen G., An impingement - spheroidisation theory for nucleation and grain growth, 2nd International Conference on Recrystallization and Grain Growth, ReX & GGII. Switzerland, Trans Tech Publications, 2004, 467-470: 45-50.

Quadir M.Z. and Duggan B.J., Deformation banding and recrystallization of a fibre components in heavily rolled IF steel, Acta Materialia. Elsevier, 2004, 52: 4011-4021.

Quadir M.Z., Tse Y.Y., Lam K.T.G. and Duggan B.J., Rolling and recrystallization texture of cold rolled IF steel: A study from low to high deformation, 2nd International Conference on Recrystallisation and Grain Growth, ReX & GGII. Switzerland, Trans Tech Publications, 2004, 467-470: 311-316.

Zhu P., Yeung W.Y., Heness G.L. and Duggan B.J., On thermomechanical processing of high ductility SiC_p/Zn-22wt.%Al metal matrix composites, Proceedings of the 5th Pacific Rim International Conference on Advanced Materials and Processing. Switzerland, Trans Tech Publications, 2005, 475-479: 979-984.

Researcher : Feng G

List of Research Outputs

Feng G. and Ngan A.H.W., Method for measuring elastic properties, United States Patent. 2005, 6,883,367.

Researcher : Gao Z

List of Research Outputs

Gibson I., Gao Z. and Campbell I., A comparative study of virtual prototyping and physical prototyping, International Journal of Manufacturing Technology and Management. UK, Inderscience Enterprises Ltd., 2004, 6(6): 503-522.

Researcher : Gibson I

List of Research Outputs

Chow S.P., Lam K.W. and Gibson I., Prosthetic device and method for total joint replacement in small joint arthroplasty. Publication No.: US 2004/0220678 A1 (Patent), 2005.

Gibson I., Gao Z. and Campbell I., A comparative study of virtual prototyping and physical prototyping, International Journal of Manufacturing Technology and Management. UK, Inderscience Enterprises Ltd., 2004, 6(6): 503-522.

Gibson I., Co-editor, Rapid Prototyping Journal. UK, Emerald, 2004.

Gibson I., Editor, International Journal of CAD/CAM. Seoul, Korea, 2004.

Gibson I., Editorial Review Board Member, Journal of Manufacturing Technology Management. UK, Emerald, 2004, 15(3).

Gibson I. and Bartolo P., Guest Editor, International Journal of Manufacturing Technology and Management. UK, Inderscience Enterprises Ltd., 2004, 6(6): 501-502.

Gibson I., Cheung L.K., Chow S.P., Cheung W.L., Beh S.L., Savalani M.M. and Lee S.H., The use of rapid prototyping to assist medical applications, Proceedings of the 10th Assises Europoeennes du Prototypage Rapide. Paris, France, AFPR, 2004, CD-ROM: 1-8.

Tan W. and Gibson I., Microstereolithography and application of numerical simulation on its layer preparation, Proceedings of the International Conference on Manufacturing Automation. Wuhan, China, Professional Engineering Publishing, 2004, 675-682.

Researcher : Guo Y

List of Research Outputs

Guo Y. and Leung Y.C., Alkali-catalyzed production of biodiesel from virgin oil and grease trap waste oil, Proceedings 5th Asia Pacific Conference on Sustainable Energy and Environmental Technologies. Wellington, New Zealand, Massey University, 2005, 24-29.

Guo Y. and Leung Y.C., An important affecting factor in biodiesel production: Intensity of mixing, Proceedings 29th Annual Conference of the Solar Energy Society of Canada. Waterloo, Canada, SES Canada Inc., 2004, CD-ROM: 6pp.

Researcher : Ho WM

List of Research Outputs

Ho W.M., A numerical study on turbulent oscillatory plane couette flow, M.Phil. Thesis. Hong Kong, The University of Hong Kong, 2004, 1-115.

Researcher : Hui SCM

List of Research Outputs

Hui S.C.M. and Leung A.H.M., Sustainable building services systems for historic buildings, Proceedings of the Joint Symposium 2004: Servicing Dense Built Environments. Hong Kong, Organising Committee of the Symposium, 2004, 133-142.

Hui S.C.M., Sustainable design and operation of construction site offices, Proceedings of the Shenyang-Hong Kong Joint Symposium 2004. Shenyang, China, Organising Committee of the Symposium, A119-A128.

Li Y., Sandberg M. and Hui S.C.M., Robustness of air distribution in plenum-based ductless ventilation systems, International Journal of Ventilation. United Kingdom, Ventilaton Energy and Environmental Technology (VEET) Ltd., 2004, 3(2): 105-108.

Researcher : Kou X

List of Research Outputs

Kou X. and Tan S.T., A hierarchical representation for heterogeneous object modeling, Computer-aided Design. Elsevier, 2005, 37(4): 307-319.

Researcher : Lai KK

List of Research Outputs

Lai K.K. and Chan A.T.Y., Computational study on indoor/outdoor air quality relationship in urban buildings, Proceedings of 2005 Joint ASCE/ASME/SES Conference on Mechanics and Materials. Baton Rouge, USA, ASCE, 2005, CD-ROM: 6pp.

Researcher : Lai WCD

List of Research Outputs

Poon C.K., Lai W.C.D. and Chow K.W., Long wave – short waves with a slight detuning in group velocities, Second Shanghai – Hong Kong Forum on Mechanics and its Applications, Shanghai, China. 2005.

Poon C.K., Lai W.C.D. and Chow K.W., Simulation of a coupled system of long wave – short waves with a slight detuning in group velocities, Fourth MIT Conference on Computational Fluid and Solid Mechanics – Focus: Fluid-Structure Interactions, Cambridge, Massachusetts, USA. 2005.

Researcher : Lam HCH

List of Research Outputs

Lam H.C.H., An in vitro study of voice prosthesis design, M.Phil Thesis. Hong Kong, The University of Hong Kong, 2005, 1-79.

Researcher : Lam HN

Project Title:	Innovative design of centralised water-cooled air-conditioning systems based on desiccant technology
Investigator(s):	Lam HN
Department:	Mechanical Engineering
Source(s) of Funding:	Small Project Funding
Start Date:	11/2002
Completion Date:	10/2004

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):	Lam HN, Leung MKH, Wong CM
Department:	Mechanical Engineering
Source(s) of Funding:	Incentive Award for RGC CERG Fundable But Not Funded Projects
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):	Lam HN
Department:	Mechanical Engineering
Source(s) of Funding:	Small Project Funding
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.

Project Title:	Design and production of an automatic cleaning and air drying system for kitchen floors
Investigator(s):	Lam HN
Department:	Mechanical Engineering
Source(s) of Funding:	The OSH Enhancement Scheme for SMEs
Start Date:	01/2005

Abstract:

To carry out study on design and production of an automatic cleaning and air drying system for kitchen floors.

List of Research Outputs

Lam H.N., Fuzzy-Genetic Control of Heat Pump, Workshop on Integrated Heat Pumps for High Energy Efficiency. 2005.

Lam H.N. and Wong H.M., Geothermal Heat Pump System for Air Conditioning in Hong Kong, In: Roland Horne and Ender Okandan, World Geothermal Congress 2005, Antalya, Turkey, 24-29 April 2005. Turkey, Paper No. 1475, 1-5.

Researcher : Lam J

Project Title:	A multi-performance approach to reliable control for dynamic systems subject to faults and saturation
Investigator(s):	Lam J, Wang J.L., Yang G.H.
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
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:	Approximation of dynamic systems with impoved time and frequency-domain objectives
Investigator(s):	Lam J, Liu W.Q.
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
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):	Lam J, Zhong M.Y., Ding S.X.
Department:	Mechanical Engineering
Source(s) of Funding:	Small Project Funding
Start Date:	11/2002
Completion Date:	10/2004

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):	Lam J, Xu S, Rogers E., Galkowski K.
Department:	Mechanical Engineering
Source(s) of Funding:	Incentive Award for RGC CERG Fundable But Not Funded Projects
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):	Lam J, Xu S.Y.
Department:	Mechanical Engineering
Source(s) of Funding:	Seed Funding Programme for Basic Research
Start Date:	02/2004

Abstract:

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

Project Title:	Synthesis Techniques for Multidimensional Dynamic Systems with Delay and Stochastic Effects
Investigator(s):	Lam J, Xu S.Y., Galkowski K.
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
Start Date:	11/2004

Abstract:

To study: (1) stability analysis for multidimensional systems with delay and stochastic effects; (2) development of performance-based synthesis and filtering techniques.

Project Title:	Development of improved LMI-Type stability and performance conditions for retarded systems
Investigator(s):	Lam J
Department:	Mechanical Engineering
Source(s) of Funding:	Small Project Funding
Start Date:	11/2004

Abstract:

To develop stability and performance conditions in terms of linear matrix inequality which are suitable for a wide class of retarded systems with reduced conservatism. A new formulation with multiple time-dependent delay components will be considered.

Project Title:	Synthesis Techniques for Multidimensional Dynamic Systems with Delay and Stochastic Effects
Investigator(s):	Lam J
Department:	Mechanical Engineering
Source(s) of Funding:	Merit Award for RGC CERG Funded Projects
Start Date:	01/2005

Abstract:

Refer to hard copy

List of Research Outputs

Cao J., Liang J. and Lam J., Exponential stability of high-order bidirectional associative memory neural networks with time delays, Physica D. Elsevier B.V., 2004, 199 (Issues 3-4): 425-436.

Chen B., Lam J. and Wang Z.D., Observer design and stabilization for linear neutral delay systems, ISA Transactions. 2005, 44(1): 35-42.

Chen B. and Lam J., Reliable observer-based H_¥ control of uncertain state-delayed systems, International Journal of Systems Science. Taylor & Francis Ltd., 2004, 35(12): 707-718.

Du H.P., Lam J. and Sze K.Y., Design of non-fragile H_¥ controller for active vehicle suspensions, Journal of Vibration and Control. Sage Publications, 2005, 11(2): 225-243.

Du H.P., Lam J. and Sze K.Y., H_¥ disturbance attenuation for uncertain mechanical systems with input delay, Transactions of Institute of Measurement and Control. The Institure of Measurement and Control, 2005, 27(1): 37-52.

Du H.P., Sze K.Y. and Lam J., Semi-active H_¥ control of vehicle suspension with MR dampers, Journal of Sound and Vibration. Elsevier Ltd., 2005, 283(3-5): 981-986.

Gao H., Lam J. and Wang C., Approximation of discrete-time systems with time-varying delay: Hankel norm criterion, Proceedings of SICE 2004. Sapporo, Japan, 1227-1232.

Gao H., Lam J., Wang C. and Wang Y., Delay-dependent output-feedback stabilization of discrete-time systems with time-varying state delay, IEE Proceedings – Control Theory & Applications. IEE, 2004, 151(6): 691-698.

Gao H., Lam J., Wang C. and Guan X., Further results on local stability of REM algorithm with time-varying delays, IEEE Communications Letters. IEEE, 2005, 9(5): 402-404.

Gao H., Lam J., Wang C. and Wang Q., Hankel norm approximation of linear systems with time-varying delay: Continuous and discrete cases, International Journal of Control. Taylor & Francis Ltd., 2005, 77(17): 1503-1520.

Gao H., Lam J., Wang C. and Xu S., Robust H_¥ filtering for 2-D stochastic systems, Circuits, Systems, and Signal Processing. 2004, 23(6): 479-505.

Gao H., Lam J. and Wang C., Robust H_¥ filtering for discrete stochastic time-delay systems with nonlinear disturbances, Nonlinear Dynamics and Systems Theory. Informath Publishing Group, 2004, 4(3): 285-301.

Gao H., Lam J., Xu S. and Wang C., Stability and stabilization of uncertain 2-D discrete systems with stochastic perturbation, Multidimensional Systems & Signal Processing. Springer Science + Business Media, Inc., 2005, 16(1): 85-106.

Gao H., Lam J., Xu S. and Wang C., Stabilization and H_¥ control of two-dimensional Markovian jump systems, IMA Journal of Mathematical Control & Information. Institute of Mathematics and its Applications, 2004, 21(4): 377-392.

Gao H., Wang C. and Lam J., Stabilization of 2D Markovian jump systems in roesser model, Proceedings of ICARCV2004. Kunming, China, IEEE, 1471-1475.

Huang H., Ho D.W.C. and Lam J., Stochastic stability analysis of fuzzy hopfield neural networks with time-varying delays, IEEE Transactions on Circuits & Systems II. IEEE, 2005, 52(5): 252-255.

Lam J., Associate Editor, Asian Journal of Control. 2005.

Lam J., Associate Editor, Conference Editorial Board of IEEE Control Systems Society. 2005.

Lam J., Associate Editor, International Journal of Applied Mathematics and Computer Science. 2005.

Lam J., Honorary Editor, IEE Proceedings: Control Theory and Applications. 2005.

Lam J., Gao H., Xu S. and Wang C., H_¥ and L₂ / L_¥ model reduction for systems with input sector nonlinearity, Journal of Optimization Theory and Applications. Springer Science + Business Media, Inc., 2005, 125(1): 137-155.

Lam J., Reviewer, Mathematical Reviews, American Mathematical Society. 2005.

Lam J., Robust Eigenstructure Assignment: A Subspace Separation Approach. Harbin, China, Harbin Institure of Technology, 2005.

Lam J. and Tam H.K., Robust eigenstructure assignment with minimum subspace separation, International Journal of Robust and Nonlinear Control. John Wiley & Sons, Ltd., 2004, 14(15): 1227-1253.

Lam J., Xu S., Zou Y., Lin Z. and Galkowski K., Robust output feedback stabilization for two-dimensional continuous systems in roesser form, Applied Mathematics Letters. Elsevier, 2004, 17(12-13): 1331-1341.

Liang J., Cao J. and Lam J., Convergence of discrete-time recurrent neural networks with variable delay, International Journal of Bifurcation and Chaos. World Scientific Publishing Company, 2005, 15(2): 581-595.

Niu Y., Ho D.W.C. and Lam J., Robust integral sliding mode control for uncertain stochastic systems with time-varying delay, Automatica. Elsevier Ltd., 2005, 41(5): 873-880.

Wang H.B., Lam J., Ding S.X. and Zhong M.Y., Iterative linear matrix inequality algorithms for fault detection with unknown inputs, Journal of Systems and Control Engineering. IMechE, 2005, 219(2): 161-172.

Wang Q., Lam J., Xu S. and Gao H., Delay-dependent and delay-independent energy-to-peak model approximation for systems with time-varying delay, International Journal of Systems Science. Taylor & Francis Group Ltd., 2005, 36(8): 445-460.

Wang Q., Lam J. and Xu S., Delay-dependent energy-to-peak model reduction for neutral systems with time-varying delays, Complex 2004. Cairns, Australia, 14pp.

Wang Z., Lam J. and Liu X., Robust filtering for discrete-time markovian jump delay systems, IEEE Signal Processing Letters. IEEE, 2004, 11(8): 659-662.

Wang Z., Lam J. and Liu X., Stabilization of a class of stochastic nonlinear time-delay systems, Nonlinear Dynamics and Systems Theory. Informath Publishing Group, 2004, 4(3): 357-368.

Xiong J., Lam J., Gao H. and Ho D.W.C., On robust stabilization of Markovian jump systems with uncertain switching probabilities, Automatica. Elsevier Ltd., 2005, 41(5): 897-903.

Xu H., Zou Y., Xu S. and Lam J., Bounded real lemma and robust H_¥ control of 2-D singular roesser models, Systems & Control Letters. Elsevier, 2005, 54(4): 339-346.

Xu S., Lam J. and Zou Y., Delay-dependent approach to stabilization of time-delay chaotic systems via standard and delayed feedback controllers, International Journal of Bifurcation and Chaos. 2005, 15(4): 1455-1465.

Xu S. and Lam J., Exponential H_¥ filter design for uncertain Takagi-Sugeno fuzzy systems with time delay, Engineering Applications & Artificial Intelligence. Elsevier Ltd., 2004, 17(6): 645-659.

Xu S., Lam J. and Zou Y., Further results on delay-dependent robust stability conditions of uncertain neutral systems, International Journal of Robust and Nonlinear Control. John Wiley & Sons, Ltd., 2005, 15(5): 233-246.

Xu S., Lam J., Zou Y. and Sun M., H_¥ control for uncertain neutral systems via non-fragile state feedback controllers, Proceedings of ICARCV2004. Kunming, China, IEEE, 48-51.

Xu S. and Lam J., Improved delay-dependent stability results for time-delay systems, IEEE Transactions on Automatic Control. IEEE, 2005, 50(3): 384-387.

Xu S. and Lam J., New positive realness condition for discrete descriptor systems: analysis and synthesis, Transactions on Circuits & Systems I. IEEE, 2004, 51(9): 1895-1905.

Xu S., Lam J., Ho D.W.C. and Zou Y., Novel global asymptotic stability criteria for delayed cellular neural networks, IEEE Transactions on Circuits & Systems II. IEEE, 2005, 52(6): 349-353.

Xu S., Lam J. and Ho D.W.C., Novel global robust stability criteria for neural networks with multiple time-varying delays, Physics Letters A. Elsevier B.V., 2005, 342: 322-330.

Xu S. and Lam J., Positive real control for uncertain singular time-delay systems using output feedback controllers, European Journal of Control. 2004, 10(4): 293-302.

Xu S. and Lam J., Robust H_¥ control for uncertain discrete time-delay fuzzy systems via output feedback controllers, IEEE Transactions on Fuzzy Systems. IEEE, 2005, 13(1): 82-93.

Xu S., Lam J. and Chen B., Robust H_¥ control for uncertain fuzzy neutral delay systems, European Journal of Control. 2004, 10(4): 365-380.

Xu S., Chen T. and Lam J., Robust H_¥ filtering for nonlinear discrete-time markovian jump systems, Journal of Optimization Theory and Applications. Plenum Publishing Corporation, 2004, 122(3): 651-668.

Xu S., Lam J., Zou Y., Lin Z. and Paszke W., Robust H_¥ filtering for uncertain 2-D continuous systems, IEEE Transactions on Signal Processing. IEEE, 2005, 53(5): 1731-1738.

Xu S. and Lam J., Robust output feedback stabilization of uncertain discrete time-delay stochastic systems with multiplicative noise, Dynamics of Continuous, Discrete and Impulsive Systems. 2005, 12(1): 41-58.

Xu S., Lam J., Zou Y., Zhong N., Gao H. and Wang C., Robust stabilization for stochastic time-delay systems with uncertainty with polytopic uncertainties, Proceedings of ICARCV2004. Kunming, China, IEEE, 1747-1750.

Xu S., Lam J. and Zou Y., Simplified descriptor system approach to delay-dependent stability analysis for time-delay systems, IEE Proceedings: Control Theory & Applications. IEE, 2005, 152(2): 147-151.

Yue D., Lam J. and Ho D., Delay-dependent robust exponential stability of uncertain descriptor systems with time-varying delays, Dynamics of Continuous, Discrete and Impulsive Systems. 2005, 12(1): 129-149.

Yue D., Han Q.L. and Lam J., Networked-based robust H_¥ control of systems with uncertainty, Automatica. Elsevier Ltd., 2005, 41(6): 999-1007.

Yue D. and Lam J., Non-fragile guaranteed cost control for uncertain descriptor systems with time-varying state and input delays, Optimal Control Applications and Methods. John Wiley & Sons, Ltd., 2005, 26(2): 85-105.

Yue D. and Lam J., Stabilizing controller design for uncertain systems with time-varying input delay, IEE Proceedings: Control Theory & Applications. IEE, 2004, 151(6): 699-705.

Zhong M., Ding S.X., Lam J. and Wang H., An optimization approach to fault detection observer design for neutral delay systems, Dynamics of Continuous, Discrete and Impulsive Systems. 2004, 11(6): 701-720.

Zhong M.Y., Lam J., Ding S.X. and Shi P., Robust fault detection of Markovian jump systems, Circuits, Systems, and Signal Processing. Birkhäuser Boston, 2004, 23(5): 387-407.

Zhou S., Lam J. and Feng G., New characterization of positive realness and control of a class of uncertain polytopic systems, Systems and Control Letters. Elsevier B.V., 2005, 54(5): 417-427.

Researcher : Lam KTG

List of Research Outputs

Quadir M.Z., Tse Y.Y., Lam K.T.G. and Duggan B.J., Rolling and recrystallization texture of cold rolled IF steel: A study from low to high deformation, 2nd International Conference on Recrystallisation and Grain Growth, ReX & GGII. Switzerland, Trans Tech Publications, 2004, 467-470: 311-316.

Researcher : Lee KL

List of Research Outputs

Lee K.L., Soh A.K., Wang X.X. and Kwok K.W., Mechanical properties of ferroelectric ceramic nano-composites, Proceedings of Thin Films 2004 & Nanotech 2004.

Soh A.K., Liu J.X., Lee K.L. and Fang D.N., Moving dislocations in general anisotropic piezoelectric solids, Physica Status Solidi B-Basic Solid State Physics. Weinheim, Germany, Wiley Verlag, 2005, 242(4): 842-853.

Song F., Lee K.L., Soh A.K., Zhu F. and Bai Y.L., Experimental studies of the material properties of the forewing of cicada , The Journal of Experimental Biology. UK, Company of Biologists, 2004, 207(17): 3035-3042.

Researcher : Lee SH

List of Research Outputs

Gibson I., Cheung L.K., Chow S.P., Cheung W.L., Beh S.L., Savalani M.M. and Lee S.H., The use of rapid prototyping to assist medical applications, Proceedings of the 10th Assises Europoeennes du Prototypage Rapide. Paris, France, AFPR, 2004, CD-ROM: 1-8.

Lee S.H., Zhou W., Cheung W.L. and Wang M., Producing polymeric scaffolds for bone tissue engineering using the selective laser sintering technique, Transactions of the Society For Biomaterials 30th Annual Meeting. Memphis, USA, SFB, 2005, 348.

Lee S.H., Zhou W., Li K.M., Wang M. and Cheung W.L., Selective laser sintering of porous scaffolds for bone tissue engineering, Conference on Biomedical Engineering, BME2004. Hong Kong, HKIE, Biomedical Division, 91-95.

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):	Leung MKH, Hsieh C.K.
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
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:	Indoor air quality control and mitigation measures for printing plants
Investigator(s):	Leung MKH, Chan A.H.S.
Department:	Mechanical Engineering
Source(s) of Funding:	Occupational Safety and Health Council - Research Grant Projects
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):	Leung MKH, Leung YC, Lam HN
Department:	Mechanical Engineering
Source(s) of Funding:	Innovation and Technology Support Programme
Start Date:	04/2003
Completion Date:	09/2004

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):	Leung MKH
Department:	Mechanical Engineering
Source(s) of Funding:	Environmental Research, Technology Demonstration Projects
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):	Leung MKH
Department:	Mechanical Engineering
Source(s) of Funding:	VCO 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):	Leung MKH, Leung YC, Yam WC, Vrijmoed L.L.P.
Department:	Mechanical Engineering
Source(s) of Funding:	Innovation and Technology Support Programme
Start Date:	04/2004

Abstract:

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

Project Title:	Modeling of photocatalytic air purification effect of Sol-Gel TiO2 thin film coated on light-transmitting substrate
Investigator(s):	Leung MKH
Department:	Mechanical Engineering
Source(s) of Funding:	Incentive Award for RGC CERG Fundable But Not Funded Projects
Start Date:	07/2004

Abstract:

Refer to hard copy

Project Title:	Development of photocatalytic disinfection technology for air quality improvement
Investigator(s):	Leung MKH, Leung YC, Yam WC, Vrijmoed L.L.P.
Department:	Mechanical Engineering
Source(s) of Funding:	Innovation and Technology Fund Internship Programme
Start Date:	09/2004
Completion Date:	08/2005

Abstract:

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

Project Title:	Development of photocatalytic disinfection technology for air quality improvement
Investigator(s):	Leung MKH, Leung YC, Yam WC, Vrijmoed L.L.P.
Department:	Mechanical Engineering
Source(s) of Funding:	Innovation and Technology Fund Internship Programme
Start Date:	09/2004
Completion Date:	12/2004

Abstract:

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

Project Title:	Novel local exhaust ventilation device for printing industry
Investigator(s):	Leung MKH
Department:	Mechanical Engineering
Source(s) of Funding:	The OSH Enhancement Scheme for SMEs
Start Date:	10/2004

Abstract:

To design a novel Local Exhaust Ventilation (LEV) device to protect the workers by removing the VOCs effectively.

Project Title:	Development of theoretical solutions to predict the transient phase-change heat and mass transfer for multiple industrial applications
Investigator(s):	Leung MKH, Leung YC, Liu CH
Department:	Mechanical Engineering
Source(s) of Funding:	Seed Funding Programme for Basic Research
Start Date:	04/2005

Abstract:

Refer to hard copy

Project Title:	Development of photocatalytic disinfection technology for air quality improvement
Investigator(s):	Leung MKH
Department:	Mechanical Engineering
Source(s) of Funding:	Innovation and Technology Fund Internship Programme
Start Date:	06/2005

Abstract:

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

List of Research Outputs

Au-Yeung K.S., Leung M.K.H., Cheung K.P., Fung K.S., Liu C.H. and Yip H.K., The use of An HEPA Respirator in combating SARS, Journal of Dental Research. 2004, 83: Special Issue B, (Online Abstract).

Ching W.H., Leung M.K.H., Leung Y.C., Yam W.C., Ng S.P. and Vrijmoed L.L.P., Photocatalytic degradation of gaseous formaldehyde by Sol-Gel TiO₂ thin film coated on glass, Proceedings of 2004 Asia-Pacific Conference of International Solar Energy Society (ISES). Gwangju, Korea, 2004, 561-567.

Leung M.K.H. and Liu C.H., Calibration of Pitot-Tube Sensor. Hong Kong, KO Controls Limited, 2004.

Leung M.K.H., Development of an air cleaner for severe acute respiratory syndrome, In: A.T.P. So, A.Y.T. Leung, D.S.C. Hui, R.S.S. Wu, J.W.Z. Lu, HKIE Transactions. 2005.

Leung M.K.H., Energy Auditor Training Course. Hong Kong, 2004.

Leung M.K.H., Energy auditor training course, Energy Institute (Hong Kong) and The University of Hong Kong. Hong Kong, 2004.

Leung M.K.H., Leung Y.C., Lam G.C.K. and Ching W.H., Environmental-Friendly Cold Water Thawing Practice. Hong Kong, The University of Hong Kong, 2004, 1-26.

Leung M.K.H., Environmental-friendly cold Water thawing practice, Hong Kong Hotels Association. Hong Kong, 2004.

Leung M.K.H., Environmental-friendly cold water thawing practice, Association of Restaurants Managers. Hong Kong, 2004.

Leung M.K.H., Environmental-friendly cold water thawing practice, Workshop on Towards Green Restaurant 2005. Hong Kong, HKSAR Environmental Protection Department, 2005.

Leung M.K.H., Leung Y.C., Sumathy K., Ni M. and Lau E., Feasibility Study of Renewable Hydrogen in Hong Kong. Hong Kong, CLP Research Institute, 2004.

Leung M.K.H., Forum - Vision on Electricity Supply an Exchange of Professional Views. Hong Kong, 2005.

Leung M.K.H., IAQ management training course, Hong Kong Indoor Air Quality Society and City University of Hong Kong/School of Continuing and Professional Education. 2004.

Leung M.K.H., Indoor Air Quality Assessment at Market at Heng On Estate. Hong Kong, Calcite Indoor Environment Services Limited, 2004.

Leung M.K.H., Liu C.H. and Chan A.H.S., Indoor Air Quality for Printing Plants. Hong Kong, Occupational Safety and Health Council, 2005, 1-76.

Leung M.K.H., Integrated Heat Pumps for High Energy Efficiency. 2005.

Leung M.K.H., Introductory ergonomics/indoor air quality and thermal comfort, Hong Kong Ergonomics Society (HKES) and City University of Hong Kong/School of Continuing and Professional Education. 2005, Guest Lecture.

Leung M.K.H., Chau O.K.Y. and Liu C.H., Local exhaust ventilation for infection control in Hospitals, HKIE Transactions, "Special Edition - Engineering Control of Respiratory Infectious Diseases". Hong Kong, HKIE, 2005, 12(1): 27-32.

Leung M.K.H., Performance of integrated heat pump, Workshop on Integrated Heat Pump for High Energy Efficiency. Hong Kong, The University of Hong Kong, 2005.

Leung M.K.H., Photocatalytic Hydrogen Production Over a New Oxyde CuLaO_2.62, In: N. Koriche, A Bouguelia, A Aider, M. Trari, International Journal of Hydrogen Energy. 2005.

Leung M.K.H., Photocatalytic Oxidation (PCO) Air Purification, The Hong Kong Air Conditioning and Refrigeration Association Limited (Newsletter). Hong Kong, 2004, 1-2.

Leung M.K.H., Practical Energy Management in Buildings. Singapore, McGraw-Hill Education (Asia), 2005.

Leung M.K.H., Processing Modelling of the Laser Surface Processing of Magnesia Partially Stabilised Zirconia by the Means of Three-Dimensional Transient Finite Element Analysis, Referee, The Royal Society e-Pubs Team. The Royal Society, 2005.

Leung M.K.H., Ching W.H., Leung Y.C. and Lam G.C.K., Theoretical study of heat transfer with moving phase-change interface in thawing of frozen food, Journal of Physics D: Applied Physics. UK, IOP Publishing Ltd, 2005, 38: 477-482.

Leung M.K.H., Workshop on Integrated Heat Pump for High Energy Efficiency. Hong Kong, The University of Hong Kong, 2005.

Ni M., Sumathy K., Leung M.K.H. and Leung Y.C., Feasibility study on renewable hydrogen for Hong Kong, Proceedings on the International Conference on Alternative Energy, Jointly Organized by Department of Electrical Engineering and Power Electronics Research Center, The University of Hong Kong Polytechnic University. Hong Kong, 2005, CD-ROM: 171-176.

Ni M., Leung M.K.H., Leung Y.C. and Sumathy K., Prospect of proton exchange membrane fuel cells (PEMFC) for transportation, World Renewable Energy Congress VIII. Colorado, USA, Elsevier Ltd., 2004, CD-ROM: 1-6.

Ni M., Leung M.K.H. and Sumathy K., Technology development of titanium doxide photocatalytic water-splitting for hydrogen production, Modern Chemical Industry. 2005, 25(4): 9-12.

Yu J.K., Han E.H., Lui L., Wei X.J. and Leung M.K.H., Corrosion behaviors of nanocrystalline and conventional polycrystalline copper, Journal of Materials Science. Springer Sceince + Business Media, Inc., 2005, 40(4): 1019-1022.

Researcher : Leung YC

Project Title:	Development of a three-dimensional numerical model for air pollution study in urban street canyons
Investigator(s):	Leung YC, Lam KM, Xia J.Y.
Department:	Mechanical Engineering
Source(s) of Funding:	Merit Award for RGC CERG Funded Projects
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):	Leung YC, Lam KM, Xia J.Y.
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
Start Date:	12/2003

Abstract:

Project Title:	Air ventilation and heat island effects in urban areas
Investigator(s):	Leung YC, Liu CH, Leung MKH
Department:	Mechanical Engineering
Source(s) of Funding:	Small Project Funding
Start Date:	11/2004

Abstract:

To determine the mechanism of pollutant removal and heat energy dissipation from street canyons of different aspect ratios, and costrast the air quality and thermal comfort in urban areas with particular emphasis on temperature, air and pollutant exchange rates, etc.

Project Title:	Numerical investigation of the physical and chemical processes of air pollutants in urban street canyons
Investigator(s):	Leung YC, Liu CH
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
Start Date:	01/2005

Abstract:

To improve our understanding and to supplement experimental findings of the physical and chemical processes that occur in urban street canyons; to enhance current urban design practice and air polluation control strategy by conducting comprehensive sensitivity tests.

Project Title:	Numerical investigation of the physical and chemical processes of air pollutants in urban street canyons
Investigator(s):	Leung YC
Department:	Mechanical Engineering
Source(s) of Funding:	Merit Award for RGC CERG Funded Projects
Start Date:	01/2005

Abstract:

Refer to hard copy

List of Research Outputs

Ching P.C., Kwong A.K.L., Leung Y.C., Li Y.S., Luk K.M., So R.M.C. and Wong K.P., Editor, The Hong Kong Institution of Engineers Transactions. Hong Kong, HKIE, 2004, 11(3): 63.

Ching P.C., Kwong A.K.L., Leung Y.C., Li Y.S., Luk K.M., So R.M.C. and Wong K.P., Editor, The Hong Kong Institution of Engineers Transactions. Hong Kong, HKIE, 2004, 11(4): 55.

Ching P.C., Kwong A.K.L., Leung Y.C., Li Y.S., Luk K.M., So R.M.C. and Wong K.P., Editor, The Hong Kong Institution of Engineers Transactions. Hong Kong, HKIE, 2005, 12(1): 51.

Ching P.C., Kwong A.K.L., Leung Y.C., Li Y.S., Luk K.M., So R.M.C. and Wong K.P., Editor, The Hong Kong Institution of Engineers Transactions. Hong Kong, HKIE, 2005, 12(2): 44.

Ching W.H., Leung M.K.H., Leung Y.C., Yam W.C., Ng S.P. and Vrijmoed L.L.P., Photocatalytic degradation of gaseous formaldehyde by Sol-Gel TiO₂ thin film coated on glass, Proceedings of 2004 Asia-Pacific Conference of International Solar Energy Society (ISES). Gwangju, Korea, 2004, 561-567.

Guo Y. and Leung Y.C., Alkali-catalyzed production of biodiesel from virgin oil and grease trap waste oil, Proceedings 5th Asia Pacific Conference on Sustainable Energy and Environmental Technologies. Wellington, New Zealand, Massey University, 2005, 24-29.

Guo Y. and Leung Y.C., An important affecting factor in biodiesel production: Intensity of mixing, Proceedings 29th Annual Conference of the Solar Energy Society of Canada. Waterloo, Canada, SES Canada Inc., 2004, CD-ROM: 6pp.

Leung M.K.H., Leung Y.C., Lam G.C.K. and Ching W.H., Environmental-Friendly Cold Water Thawing Practice. Hong Kong, The University of Hong Kong, 2004, 1-26.

Leung M.K.H., Leung Y.C., Sumathy K., Ni M. and Lau E., Feasibility Study of Renewable Hydrogen in Hong Kong. Hong Kong, CLP Research Institute, 2004.

Leung M.K.H., Ching W.H., Leung Y.C. and Lam G.C.K., Theoretical study of heat transfer with moving phase-change interface in thawing of frozen food, Journal of Physics D: Applied Physics. UK, IOP Publishing Ltd, 2005, 38: 477-482.

Leung Y.C., Yin X. and Wu C.Z., A review on the development and commercialization of biomass gasification technologies in China, Renewable & Sustainable Energy Reviews. London, UK, Elsevier Ltd., 2004, 8(6): 565-580.

Leung Y.C. and Cheng W.K., Emission characteristics of in-service diesel vehicles in Hong Kong using biodiesel and its blends, Motor Vehicle Emission Control Workshop (MoVE2004). Hong Kong, 2004, CD-ROM: 6pp.

Leung Y.C. and Liu C.H., Risk of ozone formation in urban street canyons, Proceedings of the International Symposium on Environmental Chemistry and Sonochemistry. Osaka, Japan, 2005, 8-14.

Liu C.H., Barth M.C. and Leung Y.C., Air and gaseous pollutant exchange in street canyons of different building height to street width ratios, European Meteorological Society Annual Meeting. Nice, France, European Meteorological Society, 2004, 1 (Abstracts): 14.

Liu C.H., Barth M.C. and Leung Y.C., Large-eddy simulation of flow and pollutant transport in street cayons of different building-height-to-street-width ratios, Journal of Applied Meteorology. Massachusetts, USA, American Meteorological Society, 2004, 43(10): 1410-1424.

Liu C.H. and Leung Y.C., On plume meandering in unstable stratification, Atmospheric Environment. Oxford, UK, Elsevier Ltd., 2005, 39(16): 2995-2999.

Liu C.H., Leung Y.C. and Barth M.C., On the prediction of air and pollutant exchange rates in street canyons of different aspect ratios using large-eddy simulation, Atmospheric Environment. Oxford, UK, Elsevier, 2005, 39(9): 1567-1574.

Liu C.H. and Leung Y.C., Turbulent transport of passive scalar emitted from line sources in an open channel flow, The 3rd International Conference on Computation Fluid Dynamics. Toronto, Canada, Abstract Bound Volume, 2004, 2pp.

Ni M., Sumathy K., Leung M.K.H. and Leung Y.C., Feasibility study on renewable hydrogen for Hong Kong, Proceedings on the International Conference on Alternative Energy, Jointly Organized by Department of Electrical Engineering and Power Electronics Research Center, The University of Hong Kong Polytechnic University. Hong Kong, 2005, CD-ROM: 171-176.

Ni M., Leung M.K.H., Leung Y.C. and Sumathy K., Prospect of proton exchange membrane fuel cells (PEMFC) for transportation, World Renewable Energy Congress VIII. Colorado, USA, Elsevier Ltd., 2004, CD-ROM: 1-6.

Xia J. and Leung Y.C., Study on the wind field and pollutant dispersion in street canyons using a stable numerical method, Journal of Environmental Sciences. Beijing, China, 2005, 17(3): 488-490.

Yin X., Leung Y.C., Chang J., Wang J.F., Fu Y. and Wu C.Z., Characteristics of the synthesis of methanol using biomass-derived syngas, Energy & Fuels. Washington D.C., USA, American Chemical Society, 2005, 19(1): 305-310.

Yin X., Chang J., Wang J.F., Fu Y. and Leung Y.C., Methanol synthesis from CO/CO₂ hydrogenation over Cu/Zn/Al/Mn catalyst, Journal of Fuel Chemistry and Technology. China, 2004, 32: 492-497.

Yin X., Leung Y.C., Chang J., Wang J.F. and Fu Y., Study of Cu-Zn-Al-Mn catalyst for methanol synthesis from CO-rich and CO₂-rich hydrogenation, Proceedings 7th Asia-Pacific International Symposium on Combustion and Energy Utilization. Hong Kong, Hong Kong Polytechnic University, 2004, CD-ROM: 7pp.

Yin X., Leung Y.C., Chang J. and Wu C.Z., Syngas production from air-steam gasification of biomass for methanol synthesis, Proceedings 5th Asia Pacific Conference on Sustainable Energy and Environmental Technologies. Wellington, New Zealand, Massey University, 2005, 315-320.

Yin X., Leung Y.C., Chang J., Wang J.F., Fu Y. and Wu C.Z., Synthesis of methanol from biomass-derived syngas, Proceedings Science in Thermo-chemical Biomass Conversion. Vancourer Island, Canada, Aston University, 2004, 9pp.

Researcher : Li H

List of Research Outputs

Li H. and Ngan A.H.W., Indentation size effects on the strain rate sensitivity of nanocrystalline Ni-25at.%Al thin films, Scripta Materialia. Elsevier, 2005, 52: 827-831.

Li H., The nanoindentation size effects of creep, M.Phil. Thesis. Hong Kong, The University of Hong Kong, 2004, 1-128.

Researcher : Li Y

Project Title:	A theory of enclosure ventilation driven by combined forces
Investigator(s):	Li Y, Chan ATY, Delsante A.
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
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):	Li Y, Roesler M.
Department:	Mechanical Engineering
Source(s) of Funding:	Germany/Hong Kong Joint Research Scheme
Start Date:	01/2003
Completion Date:	12/2004

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):	Li Y, Sandberg M., Luo M.C.
Department:	Mechanical Engineering
Source(s) of Funding:	Incentive Award for RGC CERG Fundable But Not Funded Projects
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.

Project Title:	Dispersion and ventilation control of exhalation pollutants in hospital wards
Investigator(s):	Li Y, Chwang ATY, Nielsen P.V., Wong TW
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
Start Date:	11/2004

Abstract:

To investigate the dispersion of exhalation gases and droplets from a single person; to investigate the interaction of inhalation and exhalation flows bewteen two persons in hospital settings using both experimental and computational methods; to comparie the existing ventilation systems for large hospital wards using both experimental and computational methods; to develop of new ventilation systems for large hospital wards; to apply the present findings to transmission routes analysis.

Project Title:	Understanding droplets due to the use of nebulizers and respiratory activities
Investigator(s):	Li Y, Chwang ATY, Seto WH, Ho PL, Yuen PL
Department:	Mechanical Engineering
Source(s) of Funding:	Research Fund for the Control of Infectious Diseases - Full Grants
Start Date:	12/2004

Abstract:

The present project is to provide new data on the number and size distribution of droplets expelled during respiratory activities and when using a nebulizer and taking nasopharyngeal aspirates; and investigate how far droplets travel as well as how the size of droplets changes, with a vew of providing essential data for studying transmission routes of respiratory diseases such as SARS and their ventilation control.

Project Title:	Evaluating factors that affect ventilation effectiveness in SARS wards
Investigator(s):	Li Y, Leung MKH, Seto WH, Kwan JK, Yu SCT, Yuen PL
Department:	Mechanical Engineering
Source(s) of Funding:	Research Fund for the Control of Infectious Diseases - Full Grants
Start Date:	12/2004

Abstract:

Between July and October 2003, the Hong Kong Government has constructed a large number of new SARS wards with more than 1,200 beds in 9 hospitals. A large number of these new SARS wards have multiple beds (2 or 4 beds). This project is to study the factors affecting the effectiveness of these new SARS wards in terms of air distribution and the removal of virus aerosols. The outcomes will facilitate decision making in various ventilation designs in different hospitals.

Project Title:	Interaction between natural ventilation and wind flow around a multi-storey building
Investigator(s):	Li Y, Roesler M., Seifert J., Xie Xiaojian
Department:	Mechanical Engineering
Source(s) of Funding:	Germany/Hong Kong Joint Research Scheme
Start Date:	01/2005

Abstract:

To understand the mechanisms of interaction between wind flow around and through a multi-storey building; to improve the existing rediction methods for natural ventilation in multi-storey buildings.

Project Title:	Dispersion and ventilation control of exhalation pollutants in hospital wards
Investigator(s):	Li Y
Department:	Mechanical Engineering
Source(s) of Funding:	Merit Award for RGC CERG Funded Projects
Start Date:	01/2005

Abstract:

Refer to hard copy

List of Research Outputs

Chan F., Cheung V., Law V., Li Y., Wong A. and Yau R., Air distribution design in a SARS Ward with multiple beds, Building Energy and Environment. 2004, 23: 21-23.

Li Y., Engineering control of indoor transmission of infectious diseases - movement of droplets and ventilation control, In: Ed: G. Chen, Q. Wang and X. Zhang, Keynote Speech at The Third National Symposium on New Technologies in Refrigeration and Air Conditioning. Hangzhou, China, Zheng Jiang University Refrigeration Research Institute, 2005, 10-14.

Li Y., Guest editor, Guest Editor: HKIE Transactions, Special Section - Engineering Control of Respiratory Infectious Diseases. The Hong Kong Institution of Engineers, 2005, 12.

Li Y. and Sumathy K., Modeling and simulation of a solar powered two bed adsorption air conditioning system, Energy Conversion and Management. UK, Elsevier Ltd., 2004, 45: 2761-2775.

Li Y., Duan S., Yu I.T.S. and Wong T.W., Multi-zone modeling of probable SARS virus transmission by airflow between flats in Block E, Amoy Gardens, Indoor Air. Blackwell Munksgaard, 2005, 15: 96-111.

Li Y. and Sumathy K., Performance analysis of a continuous multi-bed adsorption rotary cooling system, Applied Thermal Engineering. UK, Elsevier Ltd., 2005, 25: 393-407.

Li Y., Performance prediction model for a rotary multi-bed adsorption cooling system, Ph.D. Thesis. Hong Kong, The University of Hong Kong, 2004, 1-189.

Li Y., Yu I.T.S., Xu P., Lee J.H.W., Wong T.W., Ooi P.L. and Sleigh A., Prediciting super spreading events during the 2003 severe acute respiratory syndrome epidemics in Hong Kong and Singapore, American Journal of Epidemiology. Oxfored University Press, 2004, 160(8): 719-728.

Li Y., Sandberg M. and Hui S.C.M., Robustness of air distribution in plenum-based ductless ventilation systems, International Journal of Ventilation. United Kingdom, Ventilaton Energy and Environmental Technology (VEET) Ltd., 2004, 3(2): 105-108.

Li Y., Huang X., Yu I.T.S., Wong T.W. and Qian H., Role of air distribution in SARS transmission during the largest nosocomial outbreak in Hong Kong, Indoor Air. Blackwell Munksgaard, 2005, 15: 83-95.

Li Y., The needs for an inter-disciplinary approach on engineering control study of infectious diseaseas in indoor environments, In: Ed: G. Zhang, X. Hou, J. Yang, L. Tian and C. Zheng, Proceedings of BEPH 2004 - The 2nd International Conference on Built Environment and Public Health. Shantou, China, 2004, 271-278.

Li Y., Transmission and engineering control of SARS virus aerosols in indoor environments - a review, Proceedings of the Shenyang-Hong Kong Joint Symposium on Healthy Buildings in Urban Environment. Shenyang, China, 2004, Part A: 129-138.

Qian H., Nielsen P.V., Li Y. and Hyldgaard C.E., Airflow and contaminant distribution in hospital wards with a displacement ventilation system, In: Ed: G. Zhang, X. Hou, J. Yang, L. Tian and C. Zheng, Proceedings of BEPH 2004 - The 2nd International Conference on Built Environment and Public Health. Shantou, China, 2004, 355-364.

Seifert J., Rösler M., Richter W. and Li Y., Windinduzierte Lüftung in Gebäuden mit groben Öffnungen, HLH, Bd. 2004, 55(7): 30-33.

Yang L., Zhang Q., Li Y. and Chen Y., Investigating potential of natural driving forces for ventilation in four major cities in China, Building and Environment. Elsevier, 2005, 40: 738-746.

Yang Y., Li Y., Zhang G. and Chen Y., Dependence of CFD predicitions of indoor air flow on initial conditions, In: Ed: G. Zhang, X. Hou, J. Yang, L. Tian and C. Zheng, Proceedings of BEPH 2004 - The 2nd International Conference on Built Environment and Public Health. Shantou, China, 2004, 325-332.

Yu I.T.S., Wong T.W., Chiu Y.L., Lee N. and Li Y., Temporal-spatial analysis of severe acute respiratory syndrome among Hospital inpatients, Clinical Infectious Diseases. Infectious Diseases Society of America, 2005, 40: 1237-1243.

Zheng Z., Xu P., Li Y. and Chen G., Nonlinear resonance and quasi-periodic solutions for ventilation flows in a single opening enclosure, International Journal of Bifurcation and Chaos. World Scientific Publishing Company, 2005, 15(5): 1-8.

Researcher : Li Y

List of Research Outputs

Chan F., Cheung V., Law V., Li Y., Wong A. and Yau R., Air distribution design in a SARS Ward with multiple beds, Building Energy and Environment. 2004, 23: 21-23.

Li Y., Guest editor, Guest Editor: HKIE Transactions, Special Section - Engineering Control of Respiratory Infectious Diseases. The Hong Kong Institution of Engineers, 2005, 12.

Li Y. and Sumathy K., Modeling and simulation of a solar powered two bed adsorption air conditioning system, Energy Conversion and Management. UK, Elsevier Ltd., 2004, 45: 2761-2775.

Li Y. and Sumathy K., Performance analysis of a continuous multi-bed adsorption rotary cooling system, Applied Thermal Engineering. UK, Elsevier Ltd., 2005, 25: 393-407.

Li Y., Performance prediction model for a rotary multi-bed adsorption cooling system, Ph.D. Thesis. Hong Kong, The University of Hong Kong, 2004, 1-189.

Seifert J., Rösler M., Richter W. and Li Y., Windinduzierte Lüftung in Gebäuden mit groben Öffnungen, HLH, Bd. 2004, 55(7): 30-33.

Yang L., Zhang Q., Li Y. and Chen Y., Investigating potential of natural driving forces for ventilation in four major cities in China, Building and Environment. Elsevier, 2005, 40: 738-746.

Researcher : Lian L

List of Research Outputs

Chen Y.H., Yang Z.Y. and Lian L., On the development of a haptic system for rapid product development, Computer-aided Design. Elsevier, 2005, 37: 559-569.

Lian L. and Chen Y.H., Multi-resolution strategies for haptic simulation of heterogeneous deformable models, The 6th International Conference on Computer-aided Industrial Design & Conceptual Design. World Publishing Corporation, 2005, 886-890.

Yang Z.Y., Lian L. and Chen Y.H., Haptic aided ergonomic evaluation in mass customized product design, International Conference on Manufacturing Automation. London, UK, Professional Engineering Publishing, 2004, 181-188.

Yang Z.Y., Lian L. and Chen Y.H., Haptic function evaluation of multi-material part design, Computer-aided Design. Elsevier, 2005, 37: 727-736.

Researcher : Liang X

List of Research Outputs

Liang X., A comparative study of galerkin mesh-free and finite element methods, M.Phil. Thesis. Hong Kong, The University of Hong Kong, 2004, 1-96.

Researcher : Liu CH

List of Research Outputs

Au-Yeung K.S., Leung M.K.H., Cheung K.P., Fung K.S., Liu C.H. and Yip H.K., The use of An HEPA Respirator in combating SARS, Journal of Dental Research. 2004, 83: Special Issue B, (Online Abstract).

Leung M.K.H. and Liu C.H., Calibration of Pitot-Tube Sensor. Hong Kong, KO Controls Limited, 2004.

Leung M.K.H., Liu C.H. and Chan A.H.S., Indoor Air Quality for Printing Plants. Hong Kong, Occupational Safety and Health Council, 2005, 1-76.

Leung M.K.H., Chau O.K.Y. and Liu C.H., Local exhaust ventilation for infection control in Hospitals, HKIE Transactions, "Special Edition - Engineering Control of Respiratory Infectious Diseases". Hong Kong, HKIE, 2005, 12(1): 27-32.

Leung Y.C. and Liu C.H., Risk of ozone formation in urban street canyons, Proceedings of the International Symposium on Environmental Chemistry and Sonochemistry. Osaka, Japan, 2005, 8-14.

Liu C.H., Barth M.C. and Leung Y.C., Air and gaseous pollutant exchange in street canyons of different building height to street width ratios, European Meteorological Society Annual Meeting. Nice, France, European Meteorological Society, 2004, 1 (Abstracts): 14.

Liu C.H., Barth M.C. and Leung Y.C., Large-eddy simulation of flow and pollutant transport in street cayons of different building-height-to-street-width ratios, Journal of Applied Meteorology. Massachusetts, USA, American Meteorological Society, 2004, 43(10): 1410-1424.

Liu C.H. and Leung Y.C., On plume meandering in unstable stratification, Atmospheric Environment. Oxford, UK, Elsevier Ltd., 2005, 39(16): 2995-2999.

Liu C.H., Leung Y.C. and Barth M.C., On the prediction of air and pollutant exchange rates in street canyons of different aspect ratios using large-eddy simulation, Atmospheric Environment. Oxford, UK, Elsevier, 2005, 39(9): 1567-1574.

Liu C.H. and Leung Y.C., Turbulent transport of passive scalar emitted from line sources in an open channel flow, The 3rd International Conference on Computation Fluid Dynamics. Toronto, Canada, Abstract Bound Volume, 2004, 2pp.

Researcher : Liu Y

List of Research Outputs

Liu Y. and Wang M., Manufacture and characterisation of a bone analogue biomaterial: hydroxyapatite reinforced polypropylene, Proceedings of the Biomedical Engineering Conference BME2004. Hong Kong, BME2004, 9-13.

Researcher : Ma X

List of Research Outputs

Ma X., Soh A.K. and Wang B., A design database for moulded pulp packaging structure, Packaging Technology and Science. UK, John Wiley & Sons Ltd., 2004, 17(4): 193-204.

Researcher : Mak CC

List of Research Outputs

Mak C.C., Chow K.W. and Nakkeeran K., Soliton pulse propagation in averaged dispersion-managed optical fiber system, Journal of the Physical Society of Japan. Japan, The Physical Society of Japan, 2005, 74(5): 1449-1456.

Mak C.C., Solitons and wave propagation in hydrodynamical and optical media, M.Phil. Thesis. HK, The University of Hong Kong, 2004, 1-84.

Rogers C., Schief W.K., Chow K.W. and Mak C.C., On Tzitzeica vortex streets and their reciprocals in subsonic gas dynamics, Studies in Applied Mathematics. UK, Blackwell Synergy, 2005, 114(3): 271-283.

Researcher : Mak CC

List of Research Outputs

Mak C.C., Solitons and wave propagation in hydrodynamical and optical media, M.Phil. Thesis. HK, The University of Hong Kong, 2004, 1-84.

Researcher : Mi X

List of Research Outputs

Mi X., Modeling of flows at nano scale, Ph.D. Thesis. Hong Kong, The University of Hong Kong, 2004, 1-72.

Researcher : Ng CO

Project Title:	Dispersion of a chemical species subject to sorptive exchange in a wave boundary layer
Investigator(s):	Ng CO
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
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):	Ng CO, Rudraiah N.
Department:	Mechanical Engineering
Source(s) of Funding:	Seed Funding Programme for Basic Research
Start Date:	01/2003
Completion Date:	12/2004

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):	Ng CO, Zhang D, Bai Y.C.
Department:	Mechanical Engineering
Source(s) of Funding:	Merit Award for RGC CERG Funded Projects
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):	Ng CO, Zhang D, Bai Y.C.
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
Start Date:	12/2003

Abstract:

Project Title:	Dispersion mechanisms in biomechanics of synovial joints and coronary artery diseases
Investigator(s):	Ng CO, Rudraiah N.
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
Start Date:	01/2005

Abstract:

To look into the transport phenomena in a synovial joint and in the coronary arteries in a human body, in connection with the associated diseases in these organs and the synthesis of artificial materials for the replacement of these human body parts; to investigate the problem in detail incorporating the concepts and requirements of a smart material based on various models for the dispersion mechanism and fluid rheology.

Project Title:	Dispersion mechanisms in biomechanics of synovial joints and coronary artery diseases
Investigator(s):	Ng CO
Department:	Mechanical Engineering
Source(s) of Funding:	Merit Award for RGC CERG Funded Projects
Start Date:	01/2005

Abstract:

Refer to hard copy

Project Title:	On the Control of Electroconvection in the Manufacture of Smart Materials Free From Impurities
Investigator(s):	Ng CO, Rudraiah N.
Department:	Mechanical Engineering
Source(s) of Funding:	Seed Funding Programme for Basic Research
Start Date:	01/2005

Abstract:

Purpose:-This project is to conduct a theoretical study on the control of electroconvection in a layer of fluid-saturated porous medium in the presence of a transverse temperature gradient and electric field, with a view of proposing efficient mechanisms to suppress electroconvective instability in the manufacture of smart materials free from impurities.Practical Issues:-Materials science processing applications require manufacture of new strong materials, like nano and smart materials, free from impurities. Smart materials are those that have both sensing and actuating properties. One of the most crucial and active areas of research in this direction is the solidification of different types of alloys, which may be dielectric or poorly electrically conducting, by cooling from below and heating from above. At present, ferroelectric (i.e., dielectric) ceramics have been widely used in making smart devices by virtue of their piezoelectric properties. Although much less studied, smart materials can also be manufactured from poorly electrically conducting alloys (like shape memory alloys made of nickel-titanium, aluminum oxides, electrochromic, particle reinforced aluminum matrix composites, self-assembled materials and so on), which have a small electrical conductivity. These smart and strong materials have built-in sensing, actuation and control features, which can be effectively used in the design of all types of structures having a high level of safety, reduced vibration and noise, high shape control with accompanying pay-off. Problems Addressed:-These smart materials are synthesized by solidifying poorly conducting alloys by cooling from below and heating from above. In this material science process, the physical process is as follows. The variation of electrical conductivity due to the temperature difference induces free charges in the bulk of the fluid. These free charges interacting with an induced, and/or applied electrical field will produce a force equal to the product of the charge and the strength of the electric field. This force may lead to a kind of convective instability called electroconvection, which in turn produces a mushy layer that is a solid-fluid mixture made up of dendrites. These dendrites produced by electroconvection are regarded as impurities. The problem here is therefore to propose mechanisms to suppress electroconvection in order to reduce the formation of dendrites in the manufacture of smart and strong materials, which are intended to be free from impurities.

List of Research Outputs

Ng C.O., Concurrent Professor, since April 2005, Dalian University of Technology. 2005.

Ng C.O., Rudraiah N. and Nagaraj C., Dispersion mechanism in biomechanics of artificial synovial joints in the presence of electric field, Recent Advances in Fluid Mechanics. New Delhi, India, Tata McGraw Hill, 2005, 268-278.

Ng C.O., Groundwater Flow and Transport for Air Venting in Unsaturated Soils by the Homogenization Theory, The Fourth DST-SERC School on Mathematical Modelling of Groundwater Quality and Pollution, Bangalore University, India, May 2005. 2005.

Ng C.O., Groundwater flow and transport for air venting in unsaturated soils by the homogenization theory, Mathematical Modelling of Groundwater Quality and Pollution. Bangalore, India, Sapna Book House, 2005, 133-160.

Ng C.O., Homogenization technique applied to problems of Taylor dispersion, Recent Advances in Fluid Mechanics. New Delhi, India, Tata McGraw Hill, 2005, 14-21.

Ng C.O., Mass transport and set-ups due to partial standing surface waves in a two-layer viscous system, Journal of Fluid Mechanics. Cambridge, UK, Cambridge University Press, 2004, 520: 297-325.

Ng C.O., Mass transport due to partially reflected waves in a two-layer fluid system, Proceedings of McMat2005, 2005 Joint ASME/ASCE/SES Conference on Mechanics and Materials. Louisiana, USA, Louisiana State University, 2005, CD-ROM: 6pp.

Ng C.O., Mass transport due to partially reflected waves in a two-layer viscous system, ICTAM 2004 Abstracts Book and CD-ROM Proceedings, the 21st International Congress of Theoretical and Applied Mechanics. Warszawa, Poland, IPPT PAN, 2004, CD-ROM: p.196.

Ng C.O., Visiting Professor, since January 2005, Nankai University, China. 2005.

Ng C.O., William Mong Visiting Research Fellowship for an outgoing visit to the University of Wisconsin - Madison in June 2005, William Mong Research Fund, Faculty of Engineering, HKU. 2004.

Zhang X. and Ng C.O., Mud-wave interaction: a viscoelastic model, Proceedings of the Second Shanghai-Hong Kong Forum on Mechanics and Its Application. Shanghai, China, Shanghai Society of Mechanics, 2005, 1pp.

Researcher : Ngan AHW

Project Title:	Investigation of dislocation pile-up effects at grain boundaries by sub-granular indentation
Investigator(s):	Ngan AHW
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
Start Date:	09/2001
Completion Date:	08/2004

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 [kappa]_y^' for slip transmission across a grain boundary, and if such a critical [kappa]_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):	Ngan AHW, Yang W.
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
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:	Energetic pathway prediction in dislocation processes by 3-D atomistic simulation
Investigator(s):	Ngan AHW
Department:	Mechanical Engineering
Source(s) of Funding:	Merit Award for RGC CERG Funded Projects
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):	Ngan AHW
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
Start Date:	09/2003

Abstract:

Project Title:	Synthesis of nano-alloys by controlled crystallization from supercooled atomic clusters of elements
Investigator(s):	Ngan AHW
Department:	Mechanical Engineering
Source(s) of Funding:	Seed Funding Programme for Basic Research
Start Date:	02/2004
Completion Date:	01/2005

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.

Project Title:	Creep effects in high-temperature nanoindentation
Investigator(s):	Ngan AHW
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
Start Date:	09/2004

Abstract:

To investigate the characteristics of sub-micron indentation creep at room temperature, by using different materials with a variety of melting points; particular attention will be paid to the dependence of creep characteristics in a representative range of materials on melting temperature and indent size (or load); the effects of creep on elastic modulus and hardness measurements by the well-known Oliver-Pharr method will also be investigated.

Project Title:	Nanomechanical Behaviour of Hexagonal Close-Packed Metals
Investigator(s):	Ngan AHW
Department:	Mechanical Engineering
Source(s) of Funding:	Seed Funding Programme for Basic Research
Start Date:	01/2005

Abstract:

In the present era of microtechnology and the forthcoming era of nanotechnology, electro-mechanical machines are often made with components in the sub-micron length scale. Very often, the operation of these machines requires mechanical contacts generating GPa level contact stresses. An accurate understanding of the mechanical properties of materials subject to sub-micron dimension contacts and high stress levels is therefore essential to the successful design and operation of micro-machines. The pioneering experiments by Fleck et al. [Acta Metall. Mater. 42 (1994), 475-487] and others about a decade ago have triggered a lot of interest in the solid mechanics and materials science communities to understand how materials strength varies with size in the submicron length scale. Apart from being an academic interest, the rapid development of new capabilities and design methodologies in fabricating electro-mechanical systems at the micron or submicron length scales also calls for an urgent need to understand better how materials behave mechanically in the submicron length scale, as the successful design and operation of these micron machines rely on satisfactory material performance at this length scale. While static strength has been the focus in the past, other mechanical properties such as fatigue, fracture, impact strength, creep, wear, etc., are obviously equally important. However, much less has been known about how these properties vary with length scale in the submicron regime. As an example, fatigue behaviour in bulk metals are well-known to be governed by microstructural mechanisms such as persistent slip bands, but these are micron-scaled phenomena and so if the material size is in the submicron regime, the expectation is that the fatigue behaviour will be very different. The relevant experimental database, however, is still largely blank at the moment.In terms of materials, face-centred cubic (FCC) and body-centered cubic (BCC) metals have been the usual materials chosen for investigation by the nanomechanics community so far. On the other hand, although many hexagonal close-packed (HCP) materials such as titanium, zinc and magnesium are bases of advanced engineering materials in bulk applications, their corresponding nanomechanical behaviours are much less well known than the FCC and BCC counterparts. HCP materials have intrinsically far fewer slip systems than FCC and BCC materials, and so the nanomechanical behaviour can be expected to be very different. Preliminary work by the PI has shown that, presumably because of limited slip systems, nano-scale indents are highly anisotropic in shape, and the onset of plastic deformation is marked by multiple rather than single strain bursts likely to correspond to sub-micron scale cracking of the crystal planes. There is so far no existing report in the literature concerning these phenomena, and so these preliminary results are very novel.The aim of this research is therefore to use nanoindentation methods to fully characterize the nanomechanical behaviour of a range of HCP metals. The data collected should form a useful basis for further research by transmission electron microscopy and also by molecular dynamics modelling, the funding of these activities will be sought by means of a future RGC-CERG proposal.

Project Title:	Creep effects in high-temperature nanoindentation
Investigator(s):	Ngan AHW
Department:	Mechanical Engineering
Source(s) of Funding:	Merit Award for RGC CERG Funded Projects
Start Date:	01/2005

Abstract:

Refer to hard copy

Project Title:	Proposal on Seed Funding for Strategic Research Theme on Bio-nanotechnology
Investigator(s):	Ngan AHW, Che CM, Wong WT, Lu WW, Sze KY, Chan BP
Department:	Mechanical Engineering
Source(s) of Funding:	Seed Funding for Strategic Research Theme
Start Date:	05/2005

Abstract:

To encourage staff to collaborate on the research theme by working and securing external research grants; to increase the visibility of HKU in the relevant research areas in the world scene.

List of Research Outputs

Anand T.J.S., Ngan A.H.W. and Meng X.K., Conduction characteristics of DC magnetron sputtered, nanocrystalline Ni_xAl_1-x (0.5£ x £1.0) thin films, CD-ROM Proceedings of Thin Films 2004 - The 2nd International Conference on Technological Advances of Thin Films and Surface Coatings. Singapore, Nanyang Technological University, 2004, 34-CTF-A953.

Chan S.H. and Ngan A.H.W., Statistical distribution of contact forces in packings of deformable spheres, Mechanics of Materials. Elsevier, 2005, 37: 493-506.

Feng G. and Ngan A.H.W., Method for measuring elastic properties, United States Patent. 2005, 6,883,367.

Li H. and Ngan A.H.W., Indentation size effects on the strain rate sensitivity of nanocrystalline Ni-25at.%Al thin films, Scripta Materialia. Elsevier, 2005, 52: 827-831.

Ngan A.H.W., "Non-Planar Dislocations: 3-D Models and Thermally-Activated Glide Processes", Plenary Talk at "DISLOCATIONS 2004 - International Conference on Fundamentals of Plastic Deformation", Giens, France. 2004.

Ngan A.H.W., "Theory and Application on Nanoindentation", Invited Lecture in Technical Meeting on "Micro-area deformation of materials by nano-indentation", March 16-19, 2005, Institute of Advanced Industrial Science and Technology, Tsukuba, Japan . 2005.

Ngan A.H.W., A statistical mechanics theory of random honeycomb and open-cell foam structures, CD-ROM Proceedings of the 21st International Congress of Theoretical and Applied Mechanics. Warsaw, Poland, IUTAM, 2004, FSM5_11663(1) - FSM5_11663(2).

Ngan A.H.W., Wang W.T., Tang B. and Sze K.Y., Correcting power-law viscoelastic effects in elastic modulus measurement using depth-sensing indentation, International Journal of Solids and Structures. Elsevier, 2005, 42: 1831-1846.

Ngan A.H.W., Dislocation patterning - a statistical mechanics perspective, Scripta Materialia. Elsevier, 2005, 52: 1005-1010.

Ngan A.H.W., On the distribution of elastic forces in disordered structures and materials. I computer simulation, Proceedings of the Royal Society of London A: Mathematical, Physical and Engineering Sciences. Cambridge, UK, The Royal Society, 2004, 461: 433-458.

Ngan A.H.W., On the distribution of elastic forces in disordered structures and materials. II A statistical mechanics theory, Proceedings of the Royal Society of London A: Mathematical Physical and Engineering Sciences. London, UK, The Royal Society, 2005, 461: 1423-1446.

Ngan A.H.W., 材料在亞微米尺度下的機械特性, 科學技術回願與展望. 中國北京, 中國科學技術出版社, 2004, 675.

Tang B., Ngan A.H.W. and Lu W.W., Accurate measurement of mechanical properties of mouse femur cortical bone by nanoindentation, Proceedings of Biomedical Engineering Conference BME2004 "Integrated Science and Technology in the Healthcare Industry". Hong Kong, Hong Kong Institution of Engineers, 2004, 54-58.

Tang B. and Ngan A.H.W., Evaluation of the surface referencing technique in depth-sensing indentation of soft materials, Soft Materials. Marcel Dekker, Inc., 2005, 2(2&3): 183-193.

Tang B. and Ngan A.H.W., Investigation of viscoelastic properties of amorphous selenium near glass transition using depth-sensing indentation, Soft Materials. Marcel Dekker, Inc., 2005, 2(2&3): 125-144.

Wang H.T., Yang W. and Ngan A.H.W., Enhanced diffusivity by triple junction networks, Scripta Materialia. Elsevier, 2005, 52: 69-73.

Wang M.G. and Ngan A.H.W., Indentation strain burst phenomenon induced by grain boundaries in niobium, Journal of Materials Research. Materials Research Society, 2004, 19(8): 2478-2486.

Wen M., Ngan A.H.W., Fukuyama S. and Yokogawa K., Full-scale atomistic simulations of dislocations in Ni crystal by embedded-atom method, Philosophical Magazine. Taylor & Francis, 2005, 85(17): 1917-1929.

Wo P.C. and Ngan A.H.W., Incipient plasticity during nano-scratch in Ni₃Al, Philosophical Magazine. UK, Taylor & Francis, 2004, 84: 3145-3157.

Wo P.C., Zuo L. and Ngan A.H.W., Time-dependant incipient plasticity in Ni₃Al as observed in nanoindentation, Journal of Materials Research. Materials Research Society, 2005, 20: 489-495.

Xu Z. and Ngan A.H.W., TEM study of electron beam-induced crystallization of amorphous GeSi films, Philosophical Magazine Letters. Taylor & Francis Ltd., 2005, 84(11): 719-728.

Xu Z., Ngan A.H.W., Hua W.Y. and Meng X.K., Visible photoluminescence of co-sputtered Ge-Si duplex nanocrystals, Applied Physics A. Springer-Verlag, 2005, 81: 459-463.

Zuo L., Ngan A.H.W. and Zheng G., Size dependence of incipient dislocation plasticity in Ni₃Al, Physical Review Letters. The American Physical Society, 2005, 94: 095501-1 to 095501-4.

Researcher : Ni M

List of Research Outputs

Leung M.K.H., Leung Y.C., Sumathy K., Ni M. and Lau E., Feasibility Study of Renewable Hydrogen in Hong Kong. Hong Kong, CLP Research Institute, 2004.

Ni M., Sumathy K., Leung M.K.H. and Leung Y.C., Feasibility study on renewable hydrogen for Hong Kong, Proceedings on the International Conference on Alternative Energy, Jointly Organized by Department of Electrical Engineering and Power Electronics Research Center, The University of Hong Kong Polytechnic University. Hong Kong, 2005, CD-ROM: 171-176.

Ni M., Leung M.K.H., Leung Y.C. and Sumathy K., Prospect of proton exchange membrane fuel cells (PEMFC) for transportation, World Renewable Energy Congress VIII. Colorado, USA, Elsevier Ltd., 2004, CD-ROM: 1-6.

Ni M., Leung M.K.H. and Sumathy K., Technology development of titanium doxide photocatalytic water-splitting for hydrogen production, Modern Chemical Industry. 2005, 25(4): 9-12.

Researcher : Ni Y

List of Research Outputs

Ni Y., Soh A.K. and He L.H., Dynamics of self-organized epitaxial island formationunder controlled annealing , IUTAM Symposium on Mechanical behavior & micro-mechanics of nanostructured materials . Beijing, China, 2005.

Researcher : Pang SYO

List of Research Outputs

Wang L., Pang S.Y.O. and Cheng L., Bifurcation and stability of forced convection in tightly coiled ducts: multiplicity, Chaos, Solitons and Fractals. Elsevier Ltd., 2005, 26: 337-352.

Researcher : Poon CK

List of Research Outputs

Chow K.W., Poon C.K. and Zhang D., A coupled system of long wave – short waves with a mismatch in group velocities, The 57th American Physical Society Division of Fluid Dynamics Meeting, Seattle, Washington, USA. 2004.

Poon C.K., Lai W.C.D. and Chow K.W., Long wave – short waves with a slight detuning in group velocities, Second Shanghai – Hong Kong Forum on Mechanics and its Applications, Shanghai, China. 2005.

Poon C.K., Lai W.C.D. and Chow K.W., Simulation of a coupled system of long wave – short waves with a slight detuning in group velocities, Fourth MIT Conference on Computational Fluid and Solid Mechanics – Focus: Fluid-Structure Interactions, Cambridge, Massachusetts, USA. 2005.

Researcher : Qian H

List of Research Outputs

Li Y., Huang X., Yu I.T.S., Wong T.W. and Qian H., Role of air distribution in SARS transmission during the largest nosocomial outbreak in Hong Kong, Indoor Air. Blackwell Munksgaard, 2005, 15: 83-95.

Qian H., Nielsen P.V., Li Y. and Hyldgaard C.E., Airflow and contaminant distribution in hospital wards with a displacement ventilation system, In: Ed: G. Zhang, X. Hou, J. Yang, L. Tian and C. Zheng, Proceedings of BEPH 2004 - The 2nd International Conference on Built Environment and Public Health. Shantou, China, 2004, 355-364.

Researcher : Quadir MZ

List of Research Outputs

Quadir M.Z. and Duggan B.J., Deformation banding and recrystallization of a fibre components in heavily rolled IF steel, Acta Materialia. Elsevier, 2004, 52: 4011-4021.

Quadir M.Z., Tse Y.Y., Lam K.T.G. and Duggan B.J., Rolling and recrystallization texture of cold rolled IF steel: A study from low to high deformation, 2nd International Conference on Recrystallisation and Grain Growth, ReX & GGII. Switzerland, Trans Tech Publications, 2004, 467-470: 311-316.

Researcher : Sainsbury MG

List of Research Outputs

Masti R.S. and Sainsbury M.G., A study on the partial coating of a shell with an add-on viscoelastic layer for optimal damping design, Proceedings of the ISMA 2004 International Conference on Noise and Vibration Engineering. Leuven, Belgium, Katholieke Universiteit Leuven, 2004, Paper ID 416: 8pp.

Researcher : Savalani MM

List of Research Outputs

Gibson I., Cheung L.K., Chow S.P., Cheung W.L., Beh S.L., Savalani M.M. and Lee S.H., The use of rapid prototyping to assist medical applications, Proceedings of the 10th Assises Europoeennes du Prototypage Rapide. Paris, France, AFPR, 2004, CD-ROM: 1-8.

Researcher : Shen G

List of Research Outputs

Duggan B.J., Tse Y.Y. and Shen G., An impingement - spheroidisation theory for nucleation and grain growth, 2nd International Conference on Recrystallization and Grain Growth, ReX & GGII. Switzerland, Trans Tech Publications, 2004, 467-470: 45-50.

Researcher : Shen K

List of Research Outputs

Shen K., A transmission electron microscopy study of the development of rolling deformation microstructures in an interstitial free steel, Ph.D. Thesis. Hong Kong, The University of Hong Kong, 2004, 1-236.

Researcher : Sheng N

List of Research Outputs

Jin W.G., Sheng N., Sze K.Y. and Li J., Trefftz indirect methods for plane piezoelectricity, International Journal for Numerical Methods in Engineering. John Wiley & Sons, Ltd., 2005, 63: 139-158.

Sheng N., Trefftz boundary and polygonal finite element methods for piezoelectric and ferroelectric analyses, Ph.D Thesis. Hong Kong, The University of Hong Kong, 2005, 1-197.

Sze K.Y., Chen J.S., Sheng N. and Liu X.H., Stabilized conforming nodal integration: exactness and variational justification, Finite Elements in Analysis & Design. Elsevier, 2004, 41: 147-171.

Researcher : Soh AK

Project Title:	Deformation and fracture of soft ferromagnetic materials
Investigator(s):	Soh AK
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
Start Date:	10/2001
Completion Date:	09/2004

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):	Soh AK
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
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):	Soh AK
Department:	Mechanical Engineering
Source(s) of Funding:	Seed Funding Programme for Basic Research
Start Date:	10/2002
Completion Date:	09/2004

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):	Soh AK
Department:	Mechanical Engineering
Source(s) of Funding:	Merit Award for RGC CERG Funded Projects
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):	Soh AK
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
Start Date:	10/2003

Abstract:

Project Title:	Interactive behaviour of carbon nanotubes with biological molecules
Investigator(s):	Soh AK
Department:	Mechanical Engineering
Source(s) of Funding:	Seed Funding Programme for Basic 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.

Project Title:	Thermo-electro-chemical-mechanical multi-fields coupling behavior of intelligent biological materials
Investigator(s):	Soh AK
Department:	Mechanical Engineering
Source(s) of Funding:	Seed Funding Programme for Basic Research
Start Date:	01/2005

Abstract:

Along with the development of modern medicinal engineering and rehabilitation technology, intelligent biological materials, especially the piezoelectric biological materials, have been a great concern to the researchers working in the field of medicinal engineering. Its development will accelerate the industrial revolution of medicinal and robotic engineering. Fukada [1] has studied the piezoelectric properties of the biological macromolecular materials, and observed that their tensile piezoelectric constants were stable below the temperature of 200 deg. C. Fotiadis et al. [2] have studied the wave propagation in the piezoelectric human long bone. An analytical solution for cylindrical magnetic piezoelectric long bones has been obtained by Ei-Naggar et al. [3]. Silva et al. [4] have measured the piezoelectric properties of collagen-hydroxyapatite films. Ahmed and Abd-Alla [5] have studied wave propatation in long bones with cavity on the basis of ref. [3]. Bocha et al. [6] have studied the biocompatibility of anionic collagen matrix as scaffold for bone healing. Guzelsu [7] and Johnson [8] have proposed models for dry bone cantilever subjected to an end load. By means of linear piezoelectric theory, Gjelsvik [9] has described the remodeling of piezoelectric bone. Williams et al. [10] explained the bending of piezoelectric bone cantilever by the strain gradient theory. Demiray [11] provided a general description for remodeling of bones. Aschero et al. [12- 13] have studied the statistical characterization of piezoelectric coefficients in cow bone. Xu [14] has proven that the piezoelectric effect of cartilage was due to the piezoelectricity of the helix polypeptide chains. Feng et al. [15] have studied the promotion of osteogenesis by a piezoelectric biological ceramic. To-date, the research outputs were mainly on the measurement of piezoelectric properties of bones and the theory for some special problems, and the existing theoretical results have no experimental data to compare with. Furthermore, the chemical potential corresponding to the cause of piezoelectric biological evolution has yet to be studied. It is important to note that the thermoelectroelastic effect and the chemical potential cannot be neglected in studying the properties of piezoelectric biological materials. However, at present there are no thermo-electro-mechanical-chemical multi-fields coupling theories for the study of piezoelectric biological materials. Therefore, it is important to carry out basic research on the study of the mechanism of multi-fields coupling.REFERENCES [1] Fukada E, Piezoelectricity of Biopolymers, Biorheology, 32, 593-609, 1995.[2] Fotiadis DI, Foutsitzi G, Massalas CV, Wave propagation in human long bones of arbitrary cross-section, Int. J. Eng. Sci., 38, 1553-1591, 2000.[3] El-Naggar AM, Abd-Alla AM, Mahmoud SR, Analytical solution of electro-mechanical wave propagation in long bones, Appl. Math. Comput., 119, 77-98, 2001.[4] Silva CC, et al, Collagen-hydroxyapatite films: piezoelectric properties, Mat. Sci. Eng., B86, 210-218, 2001.[5] Ahmed SM, Abd-Alla AM, Electromechanical wave propagation in a cylindrical poroelastic bone with cavity, Appl. Math. Comput., 133, 257-286, 2002.[6] Rocha LB, Goissis G, Rossi MA, Biocompatibility of anionic collagen matrix as scaffold for bone healing, Biomaterials, 23, 449-456, 2002.[7] Guzelsu N, A piezoelectric model for dry bone tissue, J. Biomechanics, 11, 257-267, 1978.[8] Johnson MW, Williams WS and Gross D, Ceramic models for piezoelectricity in dry bone, J. Biomechanics, 13, 565-573, 1980.[9] Gjelsvik A, Bone remodeling and piezoelectricity—I, J. Biomechanics, 6, 69-77, 1973.[10] Williams WS and Breger L, Analysis of stress distribution and piezoelectric response in cantilever bending of bone and tendon, Ann. N.Y. Acad. Sci., 238, 121-130, 1974.[11] Demiray H, Electro-Mechanical remodeling of bones, Int. J. Eng. Sci., 21, 1117-1126, 1983.[12] Aschero G, et al, Converse piezoelectric effect detected in fresh cow femur bone, J. Biomechanics, 29, 1169-1174, 1996.[13] Aschero G, Gizdulich P, Mango F, Statistical characterization of piezoelectric coefficient d23 in cow bone , J. Biomechanics, 32, 573-577, 1999.[14] Xu JZ, Soliton dynamics in the helix polypeptide chains, Chaos Solitons & Fractals, 11, 779-790, 2000.[15] Feng JP, Yuan HP, Zhang XD, Promotion of osteogenesis by a piezoelectric biological ceramic, Biomaterials, 18, 1531-1534, 1997.

Project Title:	Thermo-elastic behavior and properties of micro- and nano-oscillators
Investigator(s):	Soh AK
Department:	Mechanical Engineering
Source(s) of Funding:	Merit Award for RGC CERG Funded Projects
Start Date:	01/2005

Abstract:

Refer to hard copy

Project Title:	Thermo-elastic behavior and properties of micro- and nano-oscillators
Investigator(s):	Soh AK
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
Start Date:	01/2005

Abstract:

To develop of analytical methodologies to study the thermo-elastic behavior and properties of two typical micro-/nano-structures, i.e. micro-oscillators and nano-beam oscillators, by considering both the time-and size-scale effects; to investigate the ab-initio molecular dynamics (MD) simulation, which would include both the wave effects and internal scattering, will be carried out to study the thermo-elastic behavior and properties of the above-mentioned micro-/nano-structures; a series of experiments will be designed and carried out to provide data for comparison with the corresponding analytical and numerical results.

List of Research Outputs

Chen J., Soh A.K., Liu J. and Liu Z.X., Transient anti-plane crack problem of a functionally graded piezoelectric strip bonded to elastic layers, Acta Mechanica. Vienna, Austria, Springer Wien, 2004, 169(1-4): 87-100.

Chen S.D., Soh A.K. and Ke F.J., Molecular dynamics modeling of diffusion bonding, Scripta Materialia. UK, Elsevier, 2005, 52(11): 1135-1140.

Fang D.N., Wan Y.P. and Soh A.K., Magnetoelastic fracture of soft ferromagnetic materials, Theoretical and Applied Fracture Mechanics. UK, Elsevier Science BV, 2004, 42(3): 317-334.

Lee K.L. and Soh A.K., Effects of electric fatigue on piezoelectric ceramics , Proceedings of the 6th International Conference on Fracture and Strength of Solids. 2005, 1: 90-95.

Lee K.L., Soh A.K., Wang X.X. and Kwok K.W., Mechanical properties of ferroelectric ceramic nano-composites, Proceedings of Thin Films 2004 & Nanotech 2004.

Li F.X., Fang D.N. and Soh A.K., An analytical axisymmetric model for the poling-history dependent behavior of ferroelectric ceramics, Smart Materials & Structures. UK, IOP Publishing Ltd., 2004, 13(4): 668-675.

Ma X., Soh A.K. and Wang B., A design database for moulded pulp packaging structure, Packaging Technology and Science. UK, John Wiley & Sons Ltd., 2004, 17(4): 193-204.

Ni Y., Soh A.K. and He L.H., Dynamics of self-organized epitaxial island formationunder controlled annealing , IUTAM Symposium on Mechanical behavior & micro-mechanics of nanostructured materials . Beijing, China, 2005.

Ni Y., Soh A.K. and He L.H., Strain-mediated patterning of surface nanostructure by the subsurface island array, Journal of Crystal Growth. UK, Elsevier, 2004, 269: 262-269.

Soh A.K., Fang D.N. and Dong Z.X., Analysis of toughening mechanisms of ZrO2/nano-SiC ceramic composites, Proceedings of the 4th Asian-Australasian Conference on Composite Materials (ACCM-4). Sydney, Australia, 2004.

Soh A.K., Experimental studies of piezoelectric / ferroelectric and soft ferromagnetic materials with defects , Symposium on Experimental Mechanics and its Applications to the Defense Science Technology . Mianyang, China, 2004.

Soh A.K. and Chen W.J., Finite element formulations of strain gradient theory for microstructures and the C0-1 patch test, International Journal for Numerical Methods in Engineering. UK, John Wiley & Sons Ltd., 2004, 61(3): 433-454.

Soh A.K., Liu J.X., Lee K.L. and Fang D.N., Moving dislocations in general anisotropic piezoelectric solids, Physica Status Solidi B-Basic Solid State Physics. Weinheim, Germany, Wiley Verlag, 2005, 242(4): 842-853.

Song F., Lee K.L., Soh A.K., Zhu F. and Bai Y.L., Experimental studies of the material properties of the forewing of cicada , The Journal of Experimental Biology. UK, Company of Biologists, 2004, 207(17): 3035-3042.

Wan Y.P., Fang D.N. and Soh A.K., A small-scale magnetic-yielding model for an infinite magnetostrictive plane with a crack-like flaw, International Journal of Solids and Structures. UK, Elsevier, 2004, 41(22-23): 6129-6146.

Wang Y., Fang D.N., Ma G.W. and Soh A.K., Tensile deformation of single-wall carbon nanotube based on a quasi-continuous analysis, Advances in Engineering Plasticity and Its Applications, Pts 1 and 2 Key Engineering Materials. Zurich-Uetikon, Switzerland, Trans Tech Publications Ltd., 2004, 274-276: 325-330.

Xie Y. and Soh A.K., Investigation of non-covalent association of single-walled carbon nanotube with amylose by molecular dynamics simulation, Materials Letters. UK, Elsevier, 2005, 59(8-9): 971-975.

Researcher : Sumathy K

Project Title:	Modeling of a solar powered continuous adsorption air conditioning system
Investigator(s):	Sumathy K
Department:	Mechanical Engineering
Source(s) of Funding:	Small Project Funding
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):	Sumathy K, Wang R.Z.
Department:	Mechanical Engineering
Source(s) of Funding:	Merit Award for RGC CERG Funded Projects
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):	Sumathy K, Wang R.Z.
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
Start Date:	12/2003
Completion Date:	12/2005

Abstract:

List of Research Outputs

Leung M.K.H., Leung Y.C., Sumathy K., Ni M. and Lau E., Feasibility Study of Renewable Hydrogen in Hong Kong. Hong Kong, CLP Research Institute, 2004.

Li Y. and Sumathy K., Modeling and simulation of a solar powered two bed adsorption air conditioning system, Energy Conversion and Management. UK, Elsevier Ltd., 2004, 45: 2761-2775.

Li Y. and Sumathy K., Performance analysis of a continuous multi-bed adsorption rotary cooling system, Applied Thermal Engineering. UK, Elsevier Ltd., 2005, 25: 393-407.

Ni M., Sumathy K., Leung M.K.H. and Leung Y.C., Feasibility study on renewable hydrogen for Hong Kong, Proceedings on the International Conference on Alternative Energy, Jointly Organized by Department of Electrical Engineering and Power Electronics Research Center, The University of Hong Kong Polytechnic University. Hong Kong, 2005, CD-ROM: 171-176.

Ni M., Leung M.K.H., Leung Y.C. and Sumathy K., Prospect of proton exchange membrane fuel cells (PEMFC) for transportation, World Renewable Energy Congress VIII. Colorado, USA, Elsevier Ltd., 2004, CD-ROM: 1-6.

Ni M., Leung M.K.H. and Sumathy K., Technology development of titanium doxide photocatalytic water-splitting for hydrogen production, Modern Chemical Industry. 2005, 25(4): 9-12.

Zhang X.J. and Sumathy K., Parametric optimization on the silica gel-calcium chloride composite desiccant rotary wheel, World Renewable Energy Congress VIII. Colorado, USA, Elsevier Ltd., 2004, CD-ROM: 1-6.

Zhang X.J., Sumathy K., Dai Y.J. and Wang R.Z., Parametric study on the silica gel-calcium chloride composite desiccant rotary wheel employing fractal BET adsorption isotherm, International Journal of Energy Research. UK, John Wiley & Sons, Ltd., 2005, 29: 37-51.

Researcher : Sze KY

Project Title:	Computational methods for meso-electromechanical analysis of ferroelectrics and ferroelectric devices
Investigator(s):	Sze KY
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
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):	Sze KY
Department:	Mechanical Engineering
Source(s) of Funding:	Small Project Funding
Start Date:	11/2002
Completion Date:	10/2004

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):	Sze KY
Department:	Mechanical Engineering
Source(s) of Funding:	Small Project Funding
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):	Sze KY
Department:	Mechanical Engineering
Source(s) of Funding:	Merit Award for RGC CERG Funded Projects
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):	Sze KY
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
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:	A unified computational tool for cells undergoing micromanipulation measurements
Investigator(s):	Sze KY
Department:	Mechanical Engineering
Source(s) of Funding:	Incentive Award for RGC CERG Fundable But Not Funded Projects
Start Date:	07/2004

Abstract:

Refer to hard copy

List of Research Outputs

Du H.P., Lam J. and Sze K.Y., Design of non-fragile H_¥ controller for active vehicle suspensions, Journal of Vibration and Control. Sage Publications, 2005, 11(2): 225-243.

Du H.P., Lam J. and Sze K.Y., H_¥ disturbance attenuation for uncertain mechanical systems with input delay, Transactions of Institute of Measurement and Control. The Institure of Measurement and Control, 2005, 27(1): 37-52.

Du H.P., Sze K.Y. and Lam J., Semi-active H_¥ control of vehicle suspension with MR dampers, Journal of Sound and Vibration. Elsevier Ltd., 2005, 283(3-5): 981-986.

Jin W.G., Sheng N., Sze K.Y. and Li J., Trefftz indirect methods for plane piezoelectricity, International Journal for Numerical Methods in Engineering. John Wiley & Sons, Ltd., 2005, 63: 139-158.

Ngan A.H.W., Wang W.T., Tang B. and Sze K.Y., Correcting power-law viscoelastic effects in elastic modulus measurement using depth-sensing indentation, International Journal of Solids and Structures. Elsevier, 2005, 42: 1831-1846.

Pan X.F., Sze K.Y. and Zhang X., A critical assessment of the meshless weighted least-squares method, Acta Mechanica Solida Sinica. Wuham, China, AMSS Press, 2004, 17(3): 270-282.

Sze K.Y., Liu X.H. and Lo S.H., Hybrid-stress six-node prismatic elements, International Journal for Numerical Methods in Engineering. John Wiley & Sons, Ltd, 2004, 61: 1451-1470.

Sze K.Y., Chen J.S., Sheng N. and Liu X.H., Stabilized conforming nodal integration: exactness and variational justification, Finite Elements in Analysis & Design. Elsevier, 2004, 41: 147-171.

Sze K.Y., Chen S.H. and Huang J.L., The incremental harmonic balance method for nonlinear vibration of axially moving beams, Journal of Sound and Vibration. Elsevier, 2005, 281: 611-626.

Researcher : Sze WS

List of Research Outputs

Chow H.N., Tan S.T. and Sze W.S., Re-designing heterogeneous objects by attribute discretization, Computer-Aided Design and Applications. Bangkok, Thailand, CAD Solutions Company Ltd., 2005, 2(1-4): 387-392.

Researcher : Tam KW

List of Research Outputs

Tam K.W. and Chan K.W., Case Study: A novel surface scanning system , Journal of Robotic System. England, UK, Wiley Periodicals, Inc., 2005, (22)7: 359-366.

Tam K.W. and Chan K.W., Thermoforming mould design using a reverse engineering approach, Proceedings of the International Manufacturing Leaders Forum on "Global Competitive Manufacturing" 2005. Australia, Centre for Advanced Manufacturing Research, CD-ROM: 8pp.

Researcher : Tan ST

Project Title:	Multiple material objects: from CAD representation to rapid prototyping
Investigator(s):	Tan ST
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
Start Date:	09/2000
Completion Date:	08/2004

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:	Layered manufacturing and redesign of compliant assemblies
Investigator(s):	Tan ST
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
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):	Tan ST, Chen KZ
Department:	Mechanical Engineering
Source(s) of Funding:	Incentive Award for RGC CERG Fundable But Not Funded Projects
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.

Project Title:	Heterogeneous solid modeling using materially defined geometric entities
Investigator(s):	Tan ST
Department:	Mechanical Engineering
Source(s) of Funding:	Merit Award for RGC CERG Funded Projects
Start Date:	01/2005

Abstract:

Refer to hard copy

Project Title:	Heterogeneous solid modeling using materially defined geometric entities
Investigator(s):	Tan ST
Department:	Mechanical Engineering
Source(s) of Funding:	Competitive Earmarked Research Grants (CERG)
Start Date:	04/2005

Abstract:

To extend and enchance the traditional homogeneous solid modeling methods by incorporating material information in the 1D, 2D and 3D geometric entities. Such a representation guarantees a more flexible material variation to be defined throughout the 3D space and the user's design intent can be intuitively captured. Moreover, a range of heterogeneous objects which are difficult or unable to be defined with existing methods can be represented. Unlike existing heterogeneous modeling schemes, this proposal defines the 1D and 2D heterogeneous geometric entities first and then hierarchically builds complex 3D solids from the lower level heterogeneous entities. To represent heterogeneous solids uniformly and generically, a Heterogeneous Feature Tree (HFT) is introduced and a material evaluation algorithm is proposed to dynamically determine or define the material information at a point.

List of Research Outputs

Chan C.K. and Tan S.T., Extreme points of a large 3D point set along multiple directions, Computer-aided Design. Elsevier, 2005, 37(1): 17-34.

Chan C.K. and Tan S.T., Putting objects into a cylindrical/rectangular bounded volume, Computer-aided Design. Elsevier, 2004, 36(12): 1189-1204.

Chow H.N., Tan S.T. and Sze W.S., Re-designing heterogeneous objects by attribute discretization, Computer-Aided Design and Applications. Bangkok, Thailand, CAD Solutions Company Ltd., 2005, 2(1-4): 387-392.

Kou X. and Tan S.T., A hierarchical representation for heterogeneous object modeling, Computer-aided Design. Elsevier, 2005, 37(4): 307-319.

Researcher : Tan W

List of Research Outputs

Tan W. and Gibson I., Microstereolithography and application of numerical simulation on its layer preparation, Proceedings of the International Conference on Manufacturing Automation. Wuhan, China, Professional Engineering Publishing, 2004, 675-682.

Researcher : Tang B

List of Research Outputs

Ngan A.H.W., Wang W.T., Tang B. and Sze K.Y., Correcting power-law viscoelastic effects in elastic modulus measurement using depth-sensing indentation, International Journal of Solids and Structures. Elsevier, 2005, 42: 1831-1846.

Tang B., Ngan A.H.W. and Lu W.W., Accurate measurement of mechanical properties of mouse femur cortical bone by nanoindentation, Proceedings of Biomedical Engineering Conference BME2004 "Integrated Science and Technology in the Healthcare Industry". Hong Kong, Hong Kong Institution of Engineers, 2004, 54-58.

Tang B. and Ngan A.H.W., Evaluation of the surface referencing technique in depth-sensing indentation of soft materials, Soft Materials. Marcel Dekker, Inc., 2005, 2(2&3): 183-193.

Tang B. and Ngan A.H.W., Investigation of viscoelastic properties of amorphous selenium near glass transition using depth-sensing indentation, Soft Materials. Marcel Dekker, Inc., 2005, 2(2&3): 125-144.

Researcher : Thangaraj JSA

List of Research Outputs

Thangaraj J.S.A., Synthesis and microstructure of Ni_x-Al_1-x (0.5£x£1) thin films, Ph.D. Thesis. Hong Kong, The University of Hong Kong, 2004, 1-187.

Researcher : Tsang SC

List of Research Outputs

Tsang S.C., Nakkeeran K., Malomed B.A. and Chow K.W., Coupled periodic waves with opposite dispersions in a nonlinear optical fiber, Optics Communications. Netherlands, Elsevier, 2005, 249: 117-128.

Tsang S.C. and Chow K.W., The evolution of periodic waves of the coupled nonlinear Schrodinger equations, Mathematics and Computers in Simulation. Netherlands, Elsevier, 2004, 66: 551-564.

Researcher : Tse YY

List of Research Outputs

Duggan B.J., Tse Y.Y. and Shen G., An impingement - spheroidisation theory for nucleation and grain growth, 2nd International Conference on Recrystallization and Grain Growth, ReX & GGII. Switzerland, Trans Tech Publications, 2004, 467-470: 45-50.

Quadir M.Z., Tse Y.Y., Lam K.T.G. and Duggan B.J., Rolling and recrystallization texture of cold rolled IF steel: A study from low to high deformation, 2nd International Conference on Recrystallisation and Grain Growth, ReX & GGII. Switzerland, Trans Tech Publications, 2004, 467-470: 311-316.

Researcher : Wang F

List of Research Outputs

Chen K.Z., Wang F., Feng X.Y. and Feng X.A., Behavior modeling for the spraying device in the layered manufacturing process for the components made of a multiphase perfect material, Proceedings of the 5th Annual International Conference on Rapid Product Development. Bloemfontein, South Africa, Central University of Technology, 2004, 12pp.

Wang F., Chen K.Z. and Feng X.A., Novel implementations of plasma spraying for fabricating components made of a multihpase perfect material, Proceedings of the 15th Annual Solid Freeform Fabrication Symposium. Austin, USA, The University of Texas at Austin, 2004, 293-303.

Wang F., Chen K.Z. and Feng X.A., Study on hybrid layered manufacturing technologies for components made of a multiphase perfect material, Proceedings of International Conference on Manufacturing Automation. Suffolk, UK, Professional Engineering Publishing, 2004, 755-764.

Zhu F., Chen K.Z., Wang F. and Feng X.A., Study on CAD modeling for objects with a multiphase perfect material, Proceedings of International Conference on Manufacturing Automation. Suffolk, UK, Professional Engineering Publishing, 2004, 133-142.

Researcher : Wang L

Project Title:	Development of integral theorems
Investigator(s):	Wang L
Department:	Mechanical Engineering
Source(s) of Funding:	Small Project Funding
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):	Wang L
Department:	Mechanical Engineering
Source(s) of Funding:	Small Project Funding
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.

Project Title:	Fabrication of fine and monodispersed emulsions by microfluidic devices
Investigator(s):	Wang L
Department:	Mechanical Engineering
Source(s) of Funding:	Incentive Award for RGC CERG Fundable But Not Funded Projects
Start Date:	07/2004

Abstract:

Refer to hard copy

Project Title:	Multiplicity and stability of forced convetion in curved pipes: numerical simulation
Investigator(s):	Wang L
Department:	Mechanical Engineering
Source(s) of Funding:	Seed Funding Programme for Basic Research
Start Date:	02/2005

Abstract:

Refer to hard copy

List of Research Outputs

Ai B.Q., Wang L. and Liu L.G., Transport reversal in a thermal ratchet, Physical Review E. The American Physical Society, 2005, 72: 031101-1 to 031101-5.

Duan Q., Wang L. and Twizell E.H., A new C² rational interpolation based on function values and constrained control of the interpolant curves, Applied Mathematics and Computation. Elsevier Inc., 2005, 161: 311-322.

Duan Q., Wang L. and Twizell E.H., A new bivariate rational interpolation based on function values, Information Sciences. Elsevier Inc., 2004, 166: 181-191.

Wang L., Pang S.Y.O. and Cheng L., Bifurcation and stability of forced convection in tightly coiled ducts: multiplicity, Chaos, Solitons and Fractals. Elsevier Ltd., 2005, 26: 337-352.

Wang L., Wei H.C. and Zhou X.S., Engineering Numerical Analysis: Problems and Solutions. Jinan, Shandong University Press, 2004, 1-587.

Wang L. and Yang T., Multiplicity and stability of convection in curved ducts: Review and progress, Advances in Heat Transfer. Elsevier Inc., 2004, 38: 203-255.

Wang L. and Yang T., Numerical simulation of multiplicity and stability of mixed convection in rotating curved ducts, International Journal of Rotating Machinery. 2005, 2005:2: 168-178.

Wang L. and Yang T., Periodic oscillation in curved duct flows, Physica D. Elsevier B.V., 2005, 200: 296-302.

Wang L. and Xu M., Property of period-doubling bifurcations, Chaos, Solitons and Fractals. Elsevier Ltd., 2005, 24: 527-532.

Yang D. and Wang L., Two finite-element schemes for steady convective heat transfer with system rotation and variable thermal properties, Numerical Heat Transfer. Taylor & Francis Inc., 2005, Part B, 47: 343-360.

Researcher : Wo PC

List of Research Outputs

Wo P.C. and Ngan A.H.W., Incipient plasticity during nano-scratch in Ni₃Al, Philosophical Magazine. UK, Taylor & Francis, 2004, 84: 3145-3157.

Wo P.C., Zuo L. and Ngan A.H.W., Time-dependant incipient plasticity in Ni₃Al as observed in nanoindentation, Journal of Materials Research. Materials Research Society, 2005, 20: 489-495.

Researcher : Wong MHH

List of Research Outputs

Wong M.H.H., Computer integration of the electrical discharge machining process, M.Phil. Thesis. Hong Kong, The University of Hong Kong, 2004, 1-195.

Researcher : Wu J

List of Research Outputs

Wu J., Assembly redesign for layered manufacturing: An algorithmic approach, Ph.D. Thesis. Hong Kong, The University of Hong Kong, 2004, 1-140.

Researcher : Xie T

List of Research Outputs

Xie T., Development of a XML-Based distributed service architecture for product development in enterprise clusters, M.Phil. Thesis. Hong Kong, The University of Hong Kong, 2005, 1-142.

Researcher : Xie Y

List of Research Outputs

Xie Y. and Soh A.K., Investigation of non-covalent association of single-walled carbon nanotube with amylose by molecular dynamics simulation, Materials Letters. UK, Elsevier, 2005, 59(8-9): 971-975.

Researcher : Xu M

List of Research Outputs

Wang L. and Xu M., Property of period-doubling bifurcations, Chaos, Solitons and Fractals. Elsevier Ltd., 2005, 24: 527-532.

Researcher : Xu Z

List of Research Outputs

Xu Z. and Ngan A.H.W., TEM study of electron beam-induced crystallization of amorphous GeSi films, Philosophical Magazine Letters. Taylor & Francis Ltd., 2005, 84(11): 719-728.

Xu Z., Ngan A.H.W., Hua W.Y. and Meng X.K., Visible photoluminescence of co-sputtered Ge-Si duplex nanocrystals, Applied Physics A. Springer-Verlag, 2005, 81: 459-463.

Researcher : Yang T

List of Research Outputs

Wang L. and Yang T., Periodic oscillation in curved duct flows, Physica D. Elsevier B.V., 2005, 200: 296-302.

Researcher : Yang X

List of Research Outputs

Yang X., Computational models for piezoelectrics and piezoelectric laminates, Ph.D. Thesis. Hong Kong, The University of Hong Kong, 2004, 1-245.

Researcher : Yin X

List of Research Outputs

Leung Y.C., Yin X. and Wu C.Z., A review on the development and commercialization of biomass gasification technologies in China, Renewable & Sustainable Energy Reviews. London, UK, Elsevier Ltd., 2004, 8(6): 565-580.

Yin X., Leung Y.C., Chang J., Wang J.F., Fu Y. and Wu C.Z., Characteristics of the synthesis of methanol using biomass-derived syngas, Energy & Fuels. Washington D.C., USA, American Chemical Society, 2005, 19(1): 305-310.

Yin X., Chang J., Wang J.F., Fu Y. and Leung Y.C., Methanol synthesis from CO/CO₂ hydrogenation over Cu/Zn/Al/Mn catalyst, Journal of Fuel Chemistry and Technology. China, 2004, 32: 492-497.

Yin X., Leung Y.C., Chang J., Wang J.F. and Fu Y., Study of Cu-Zn-Al-Mn catalyst for methanol synthesis from CO-rich and CO₂-rich hydrogenation, Proceedings 7th Asia-Pacific International Symposium on Combustion and Energy Utilization. Hong Kong, Hong Kong Polytechnic University, 2004, CD-ROM: 7pp.

Yin X., Leung Y.C., Chang J. and Wu C.Z., Syngas production from air-steam gasification of biomass for methanol synthesis, Proceedings 5th Asia Pacific Conference on Sustainable Energy and Environmental Technologies. Wellington, New Zealand, Massey University, 2005, 315-320.

Yin X., Leung Y.C., Chang J., Wang J.F., Fu Y. and Wu C.Z., Synthesis of methanol from biomass-derived syngas, Proceedings Science in Thermo-chemical Biomass Conversion. Vancourer Island, Canada, Aston University, 2004, 9pp.

Yin X., Synthesizing methanol from biomass-derived syngas, Ph.D. Thesis. Hong Kong, The University of Hong Kong, 2004, 1-217.

Researcher : Yu X

List of Research Outputs

Yu X. and Chwang A.T.Y., Effect of constriction shape on flows in stenosed channels, American Society of Biomechanics Annual Meeting 2004. Portland, Oregon, USA, CD-ROM: 2pp.

Yu X. and Chwang A.T.Y., Pulsatile flow in a carotid bifurcation model, The Second World Congress for Chinese Biomedical Engineers. Beijing, China, 2004, CD-ROM: 2pp.

Yu X. and Chwang A.T.Y., Unsteady flow in a human carotid model, In: (ed. Hong Youshi), Advances in Applied Mechanics. Beijing, China, Science Press, 2004, 352-356.

Researcher : Zhang D

List of Research Outputs

Chow K.W., Poon C.K. and Zhang D., A coupled system of long wave – short waves with a mismatch in group velocities, The 57th American Physical Society Division of Fluid Dynamics Meeting, Seattle, Washington, USA. 2004.

Chwang A.T.Y., Zhang D., Lee W.P. and Wong C.P., Verification of field performance of wave-absorbing seawall at Jordan Road reclamation, Proceedings of the International Conference on Coastal Infrastructure Development - Challenges in the 21st Century. Hong Kong, 2004, CD-ROM: 6pp.

Researcher : Zhang X

List of Research Outputs

Zhang X., An effective design method for components made of a multiphase perfect material, Ph.D. Thesis. Hong Kong, The University of Hong Kong, 2004, 1-259.

Zhang X., Chen K.Z. and Feng X.A., Material design of components made of multi-materials and its applications in high-tech product design, Proceedings of International Conference on Manufacturing Automation. Suffolk, UK, Professional Engineering Publishing, 2004, 167-174.

Zhang X. and Ng C.O., Mud-wave interaction: a viscoelastic model, Proceedings of the Second Shanghai-Hong Kong Forum on Mechanics and Its Application. Shanghai, China, Shanghai Society of Mechanics, 2005, 1pp.

Researcher : Zhang X

List of Research Outputs

Zhang X., An effective design method for components made of a multiphase perfect material, Ph.D. Thesis. Hong Kong, The University of Hong Kong, 2004, 1-259.

Researcher : Zheng G

Project Title:	Experiment and simulation studies on the deformation mechanisms in nanocrystalline H.C.P. metals
Investigator(s):	Zheng G
Department:	Mechanical Engineering
Source(s) of Funding:	Seed Funding Programme for Basic Research
Start Date:	10/2004

Abstract:

To study the mechanical deformation mechanisms in nanocrystalline (nc) metals by experiments and computer simulations.

List of Research Outputs

Li M. and Zheng G., Computational mechanics: WCCM VI in conjunction with APCOM'04. 2004, 1: 499.

Zheng G., Gross D. and Li M., The effect of microstructure on magnetic phase transitions in an Ising model, Physica A. 2005, 355: 355.

Zheng G., Wang Y.M. and Li M., atomistic simulation studies on deformation mechanism of nanocrystalline cobalt, Acta Materialia. 2005, 53: 3893.

Zuo L., Ngan A.H.W. and Zheng G., Size dependence of incipient dislocation plasticity in Ni₃Al, Physical Review Letters. The American Physical Society, 2005, 94: 095501-1 to 095501-4.

Researcher : Zhou W

List of Research Outputs

Lee S.H., Zhou W., Cheung W.L. and Wang M., Producing polymeric scaffolds for bone tissue engineering using the selective laser sintering technique, Transactions of the Society For Biomaterials 30th Annual Meeting. Memphis, USA, SFB, 2005, 348.

Lee S.H., Zhou W., Li K.M., Wang M. and Cheung W.L., Selective laser sintering of porous scaffolds for bone tissue engineering, Conference on Biomedical Engineering, BME2004. Hong Kong, HKIE, Biomedical Division, 91-95.

Researcher : Zhu F

List of Research Outputs

Song F., Lee K.L., Soh A.K., Zhu F. and Bai Y.L., Experimental studies of the material properties of the forewing of cicada , The Journal of Experimental Biology. UK, Company of Biologists, 2004, 207(17): 3035-3042.

Zhu F., Chen K.Z. and Feng X.A., Converting a CAD model into a manufacturing model for the component made of a multiphase perfect material, Proceedings of the 15th Annual Solid Freeform Fabricaton Symposium. Austin, USA, The University of Texas at Austin, 2004, 532-543.

Zhu F., Chen K.Z. and Feng X.A., Development of a CAD modeling system for components made of multi heterogeneous materials, Materials & Design. Exeter, UK, Elsevier Science Ltd., 2005, 26: 113-126.

Zhu F., Chen K.Z., Wang F. and Feng X.A., Study on CAD modeling for objects with a multiphase perfect material, Proceedings of International Conference on Manufacturing Automation. Suffolk, UK, Professional Engineering Publishing, 2004, 133-142.

Zhu F., Visualized CAD modeling and layered manufacturing modeling for components made of a multiphase perfect material, M.Phil. Thesis. Hong Kong, The University of Hong Kong, 2004, 1-172.

Researcher : Zuo L

List of Research Outputs

Wo P.C., Zuo L. and Ngan A.H.W., Time-dependant incipient plasticity in Ni₃Al as observed in nanoindentation, Journal of Materials Research. Materials Research Society, 2005, 20: 489-495.

Zuo L., Ngan A.H.W. and Zheng G., Size dependence of incipient dislocation plasticity in Ni₃Al, Physical Review Letters. The American Physical Society, 2005, 94: 095501-1 to 095501-4.

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