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IEEE自然语言处理与知识工程国际学术会议

作者： Ruifeng XU and Qin LU Department of Computing The Hong Kong Polytechnic University hunghom Kowloon10

＜正＞A study on using syntactic patterns to improve window-based collocation extraction systems is presented. The support collocation patterns and reject collocation patterns retrieved from a chunked corpus and are used in two different strategies. The first strategy uses only the support patterns in preprocessing stage whereas the. second strategy incorporates both the support and the reject patterns into the existing systems. Experimental results show that the use of syntactic patterns can significantly improve the performance of collocation extraction especially for filtering out pseudo collocations and the extraction of low-occurrence collocations.

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In vivo determination the relationship between human brachialis architecture parameters and elbow joint angle in passive condition

In vivo determination the relationship between human brachia...

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第2届世界华人生物医学工程研讨会

作者： L Li and K.Y. Tong Jockey Club Rehabilitation Engineering Centre The HongKong Polytechnic University hunghom HongKong China

Muscle pennation angle and fascicle length were measured in vivo with the use of ultrasonography to investigate the relationship between these muscle architecture parameters and elbow joint position.

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广泛使用玻璃的现代建筑设计中存在的消防安全问题(英文)

广泛使用玻璃的现代建筑设计中存在的消防安全问题(英文)

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2003火灾科学与消防工程国际学术会议

作者： HUNG Wing-Yan CHOW Wan-Ki(Department of Building Services Engineering The Hong Kong Polytechnic University hunghom Hong Kong)

新建筑设计中广泛使用玻璃有多方面的原因。除了玻璃的那些长处之外,我们更应看到它的缺点,特别是在安全方面。现在,我们对玻璃的设计还没有明确的法规规定,也没有设计指南。本文简要介绍了目前玻璃的使用情况,讨论了其带来的好处以及... 详细信息

新建筑设计中广泛使用玻璃有多方面的原因。除了玻璃的那些长处之外,我们更应看到它的缺点,特别是在安全方面。现在,我们对玻璃的设计还没有明确的法规规定,也没有设计指南。本文简要介绍了目前玻璃的使用情况,讨论了其带来的好处以及作为不安全建筑材料的局限性;重点介绍了大量使用玻璃所带来的消防安全问题。尽管很多文献都提到了对玻璃的实验工作,但我们还应做类似的研究,以适应当地的需要并提供足够的设计数据。

关键词：玻璃破碎幕墙窗户消防安全

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NUMERICAL STUDY ON THE MIXING OF UNSORTED SEDIMENT PARTICLES DISCHARGED INTO A CROSS-FLOW BY MULTIPHASE PARTICLE-IN-CELL (MP-PIC) METHOD

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International Journal of Sediment Research 2007年第2期22卷 150-159页

作者： Jie GU1, Chiwai LI2, Hong YANG1 and Yong ZHAN31 Department of Environmental Engineering, College of Marine Science and Technology, Shanghai Fisheries University, 334 Jungong Road, Shanghai 200090, China2 Department of Civil and Structural Engineering, The Hong Kong Polytechnic University, hunghom, Kowloon, Hong Kong, China3 Department of Environmental Engineering, College of Urban Construction and Environment, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093, China Shanghai Fisheries Univ Coll Marine Sci & Technol Dept Environm Engn Shanghai 200090 Peoples R China Hong Kong Polytech Univ Dept Civil & Struct Engn Kowloon Hong Kong Peoples R China Shanghai Univ Sci & Technol Coll Urban Construct & Environm Dept Environm Engn Shanghai 200093 Peoples R China

The mixing characteristics of dredged sediments of variable size discharged into cross-flow are studied by an Eulerian-Lagrangian method. A three-dimensional (3D) numerical model has been developed by using the modified k-ε parameterization for the turbulence in fluid phase/water and a Lagrangian method for the solid phase/sediments. In the model the wake turbulence induced by sediments has been included as additional source and sink terms in the k-ε model; and the trajectories of the sediments are tracked by the Lagrangian method in which the sediment drift velocities in cross-flow are computed by a multiphase particle-in-cell (MP-PIC) method and the diffusion process is approximated by a random walk model. The hydrodynamic behavior of dumped sediment cloud is governed by the total buoyancy on the cloud, the drag force on each particle and velocity of cross-flow. The cross-flow destroys more or less the double vortices occurred in stagnant ambience and dominates the longitudinal movement of sediment cloud. The computed results suggest satisfactory agreement by comparison with the experimental results of laboratory.

关键词： 3D numerical model Two-phase flow Eulerian-Lagrangian method Sediment particle cloud Cross-flow Multiphase particle-in-cell (MP-PIC) method

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Nonlinear Systems Identification via an Input-Output Model Based on a Feedforward Neural Network

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International Journal of Plant Engineering and Management 1997年第4期2卷 45-50页

作者： O. L. Shuai South China University of Technology, Gungzhou, 510641, P.R. China S. C. Zhou S. K. Tso T. T. Wong T.P. Leung The Hong Kong Polytechnic University, hunghom, Kowloon, HK

This paper develops a feedforward neural network based input output model for a general unknown nonlinear dynamic system identification when only the inputs and outputs are accessible observations. In the developed model, the size of the input space is directly related to the system order. By monitoring the identification error characteristic curve, we are able to determine the system order and subsequently an appropriate network structure for systems identification. Simulation results are promising and show that generic nonlinear systems can be identified, different cases of the same system can also be discriminated by our model.

关键词： nonlinear dynamic systems identification neural networks based Input Output Model identification error characteristic curve

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A Virtual Integration System Framework for Clothing Biomechanical Engineering Design

A Virtual Integration System Framework for Clothing Biomecha...

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绿色纺织，健康生活——第三届纺织生物工程及信息学国际会...

作者： Ruo-Mei Wang1 2 Yi Li1 Xiao-Nan Luo2 3 1Institute of Textile and Clothing Hong Kong Polytechnic University hunghom Kowloon HongKong 2Institute of Computer Application ZhongShan University GuangZhou China 3Engineering Research Center of Digital Life Ministry of Education

Clothing engineering is a complex design process. It involves many dynamic and interactive process phase. In this paper, an integrated CAD system for the biomechanical engineering design of clothing is presented. This system can provide an integrated environment using function specification, data management, design process simulation, and design evaluation for the design. The main characters of this system are that it combines the design, simulation, analysis, and evaluation to support the design process efficiently.

关键词： clothing engineering design integration simulation

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