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Journal of Materials Science & Technology 2005年第5期21卷 613-617页

作者： F.T.ChengDepartment of Applied Physics, the hong kong polytechnic university, hong kong, China Department of Applied Physics Hong Kong Polytechnic University Hong Kong Hong Kong

The results and main findings of studies reported in the literature in relation to the deposition of calcium phosphate on Ti in simulated body fluids are summarized. The effects of the surface hydroxyl groups and the sign of surface charge on the nucleation of calcium phosphate are reviewed. One major controversy among the conclusions of different studies is the order of adsorption of the calcium ions and the phosphate ions in the initial stage of immersion. A simple model based on the amphoteric nature of the hydroxyl groups on Ti is proposed in an attempt to delineate the nucleation process for calcium phosphate on Ti in simulated body fluids. HPO4^2- ions interact with the hydroxyl groups via ion exchange and/or electrostatic attraction, and Ca^2＋ ions, via electrostatic attraction only. There is no preferential order of adsorption. Seemingly inconsistent results in different studies possibly arise from different prior treatments of the samples, which affect the adsorption properties.

关键词： Titanium Calcium phosphate Simulated body fluid Hydroxyl group Point of zero charge Surface charge

STUDY ON CONTROLLABILITY AND OBSERVABILITY FOR THIN PLATE SYSTEM WITH PARAMETER UNCERTAINTY

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Chinese Journal of Mechanical Engineering 1998年第3期11卷 60-67页

作者： Li Yiyang Ren Lihong Chen Guodong Liang Tianpei Department of Mechanical Engineering, the hong kong polytechnic university, hong kong hong kong polytechnic Univ Hong Kong Hong Kong

The controllability and observability analysis of thin plate system with parameter uncertainty is presented using the degree of controllability/observability and the robustness index. It provides a guidance to the des... 详细信息

关键词： Degree of controllability/observability Robustness index Active vibration control

A Computer-Aided FPS-Oriented Approach for Construction Briefing

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Tsinghua Science and Technology 2008年第S1期13卷 292-297页

作者： Xiaochun Luo, Qiping Shen Department of Building and Real Estate, the hong kong polytechnic university, hong kong, China Department of Building and Real Estate the Hong Kong Polytechnic University Hong Kong China

Function performance specification (FPS) is one of the value management (VM) techniques developed for the explicit statement of optimum product definition. This technique is widely used in software engineering and manufacturing industry, and proved to be successful to perform product defining tasks. This paper describes an FPS-oriented approach for construction briefing, which is critical to the successful delivery of construction projects. Three techniques, i.e., function analysis system technique, shared space, and computer-aided toolkit, are incorporated into the proposed approach. A computer-aided toolkit is developed to facilitate the implementation of FPS in the briefing processes. This approach can facilitate systematic, efficient identification, clarification, and representation of client requirements in trail running. The limitations of the approach and future research work are also discussed at the end of the paper.

关键词： briefing value management (VM) functional performance specification (FPS) function analysis system technique shared space computer-aided

A critique of the Guilt versus Shame Dichotomy in the Comparison of Chinese and Western Culture Based on an Analysis of Moral Self-discipline

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学术界 2010年第7期 272-275页

作者： Jiang hong Yu Ning Nanjing Normal university hong kong polytechnic university

*** Origin of the IssueRuth Benedict analyzes the behavior,psychology and values of Japanese people in the Chrysanthemum and the Sword,and points out that a sense of shame dominates the motive power of Japanese psychology; a sense of guilt dominates the motive power of Western *** scholars think the entire East,including Japan,is in the shame culture system,and they hold that the characteristic differences between Eastern and Western culture are the sense of shame versus the sense of guilt,and heteronomy versus autonomy.

关键词： A critique of the Guilt versus Shame Dichotomy in the Comparison of Chinese and Western Culture Based on an Analysis of Moral Self-discipline

On comparison of jump point detection for an exchange rate series

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Science China Mathematics 2004年第1期47卷 52-64页

作者： IP Wai-Cheung, WONG Heung, XIE Zhongjie & LUAN YihuiDepartment of Applied Mathematics, hong kong polytechnic university, hong kong, China Department of Probability and Statistics, Peking university, Beijing 100871, China Department of Applied Mathematics Hong Kong Polytechnic University Hong Kong China Department of Probability and Statistics Peking University Beijing China

The main purpose of this paper is to investigate the detection of jump points of a discontinuous function in the presence of a noise by the wavelet approach. A computing algorithm of our method is proposed and then applied to the daily exchange rate of US Dollar against Deutsche Mark. All the points detected by our method reflect very strong economic and political impacts. Other statistical methods to detect jump points have also been applied to the same exchange rate data. Our proposed method has produced more convincing empirical results than others.

关键词： exchange rate, jump points, threshold, wavelets.

Modeling uncertainty in geographic information and analysis

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Science China(Technological Sciences) 2008年第S1期51卷 38-47页

作者： SHI WenZhong Advanced Research Centre for Spatial Information Technology,Department of Land Surveying and Geo-Informatics,the hong kong polytechnic university,Hung Hom,Kowloon,hong kong,China Advanced Research Centre for Spatial Information Technology Department of Land Surveying and Geo-Informatics the Hong Kong Polytechnic University Hung Hom Kowloon Hong Kong China

Uncertainty modeling and data quality for spatial data and spatial analyses are im-portant topics in geographic information science together with space and time in geography,as well as spatial analysis. In the past two decades,a lot of efforts have been made to research the uncertainty modeling for spatial data and analyses. This paper presents our work in the research. In particular,four progresses in the re-search are given out: (a) from determinedness-to uncertainty-based representation of geographic objects in GIS; (b) from uncertainty modeling for static data to dy-namic spatial analyses; (c) from modeling uncertainty for spatial data to models; and (d) from error descriptions to quality control for spatial data.

关键词： uncertainty quality control spatial data spatial analysis spatial model

CONTACT DEFORMATION AND PRE-CONTROL OF TRANSMISSION PROPERTIES OF POINT CONJUGATE GEAR

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Chinese Journal of Mechanical Engineering 2000年第1期13卷 76-80页

作者： Liu Huran Yuan Wenhui (Department of Mechanical Engineering, Changsha Railway Institute) Li Rongbin (the hong kong polytechnic university) 长沙铁道学院湖南长沙香港理工大学香港

According to spatial conjugate principle and theory of elastic contact, a method to pre-control transmission properties and contact mark of point meshing gear is presented, while the deformation of tooth surface is un... 详细信息

关键词： Elastic Contact Deformation Meshing Gear

Theoretical Analysis of the Factors Affecting Splice Loss During Fabric Spreading

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Journal of China Textile university(English Edition) 2000年第2期17卷 65-68页

作者： Hui Chi Leung Patrick and NG Sau Fun FrencyInstitute of Textiles & Clothing, the hong kong polytechnic university The hong kong polytechnic Univ Hong Kong Hong Kong

Material utilization is mainly concerned by industrialpractitioners since it contributes to minimize the totalproduction costs for garment manufacturing. Apart fromthe marker loss, splice loss (the fabric loss during thejoining of different fabric rolls) is one of the primarycauses of fabric loss, but it has not been considered spe-cifically in the past literatures. The amount of splice lossduring fabric spreading is governed by various factors in-cluding the marker length, the number of fabric rolls,and the number of splicing intervals for laying-up. Inour study, these three effects on splice loss during fabricspreading were computed and analysed.

关键词： material utilization spreading splice loss

REFINEMENTS OF THE FAN-TODD'S INEQUALITIES

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Chinese Annals of Mathematics,Series B 2002年第1期23卷 75-84页

作者： K. K. Chong Department of Applied Mathematics, the hong kong polytechnic university hong kong, China. E-mail:makkchon@inet.po1yu.edu.hk Department of Applied Mathematics The Hong Kong Polytechnic University Hong Kong China

Refinements to inequalities on inner product spaces are presented. In this respect, inequali-ties dealt with in this paper are: Cauchy’s inequality, Bessel’s inequality, Fan-Todd’s inequality and Fan-Todd’s determinantal inequality. In each case, a strictly increasing function is put for-ward, which lies between the smaller and the larger quantities of each inequality. As a result. an improved condition for equality of the Fan-Todd’s determinantal inequality is deduced.

关键词： Cauchy's inequality Bessel's inequality Fan-Todd's inequality Fan-Todd's determinantal inequality Refinements of inequalities