作者： LONG Kai;ZUO Zheng-xing （¹School of Mechanical and Vehicular Engineering, Beijing Institute of Technology, Beijing 100081, China）

出处： Transactions of Beijing Institute of Technology 2009 Vol.29 No.4 P299-303

关键词： checkerboards;continuum structure;mesh-dependence;nodal independent continuous variables;perimeter control;topological optimization

摘要： In order to overcome numerical instabilities such as checkerboards, mesh-dependence and gray regions in the topological optimization of continuum stru ...

作者： Li, Bing;Shi, Baoshan;Zhou, Nanqiao;Qin, Xuemei （College of Mechanism and Automoblie Engineering, Xhuhai Campus of Beijing Institute of Technology, Zhuhai 519085, China）

出处： Suliao Keji (Plastics Science and Technology) 2009 Vol.37 No.5 P63-66

摘要： Taking wood flour, PVC, foaming agent as materials, the foamed PVC/ wood flour composite was prepared by continuous extrusion. The cell morphology and ...

作者： PENG Zeng-xiong;YUAN Shi-hua （¹National Key Laboratory of Vehicular Transmission, Beijing Institute of Technology, Beijing 100081, China）

出处： Transactions of Beijing Institute of Technology 2009 Vol.29 No.3 P205-208

关键词： digital PID;displacement servo system;frequency characteristics;hydraulic pump-motor

摘要： Mathematical models of hydraulic pump-motor and displacement servo system were built up. Characteristics were analyzed according to bode diagram and s ...

作者： （National Key Laboratory of Mechatronic Engineering and Control, Beijing Institute of Technology, Beijing 100081, China）

出处： 兵工学报（英文版） 2009 No.3 P175-180

关键词： technology of instrument and meter;giant magneto-impedance;magnetic sensor;amorphous wire;target detection

摘要： A novel sensor for micro-magnetic field detection is proposed based on the physical characteristics and giant magneto-impedance (GMI) effect of Fe-Co- ...

作者： ZHANG Ming;CHEN Shu-fen;FU Lei;RAO Fan-jun （¹Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China）

出处： Transactions of Beijing Institute of Technology 2009 Vol.29 No.4 P344-346

关键词： active resonator;fiber resonant laser gyroscope (FRLG);theoretical precision

摘要： Active fiber ring resonator is the key part of a fiber resonant laser gyroscope (FRLG) system. The measurement precision of FRLG is decided by the act ...

作者： JI Lian-ying;GAO Mei-guo;LI Yun-jie （¹Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China）

出处： Transactions of Beijing Institute of Technology 2009 Vol.29 No.6 P532-535

关键词： channelization;cross channel;FM signal;signal collection update

摘要： A new cross channel detection and arbitration algorithm and its real-time implementation structure are proposed. The algorithm is based on a proposed ...

作者： ZHANG Jian;SHEN Ting-zhi;JIANG Wei;WANG Wei-jiang （¹Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China）

出处： Transactions of Beijing Institute of Technology 2009 Vol.29 No.3 P250-252

关键词： downsizing;intraprediction;transcoding

摘要： With the implementation of the new video coding standard H. 264, there appeared higher demands in spatial resolution transcoding in H. 264. Present he ...

作者： SHI Jia-dong;WANG Jian-zhong （¹State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China）

出处： Transactions of Beijing Institute of Technology 2009 Vol.29 No.4 P347-350

关键词： human motion;mahalanobis distance;optical flow;skin detection

摘要： Optical flow algorithm has its difficultly in detecting the whole human region in the complex environment. An integrated method of detecting human mot ...

作者： Liu Yi;Wang Zhongqi;Chen Han;Bai Chunhua （State Key Laboratory of Explosion Science & Technology; Beijing Institute of Technology, Beijing 100081, China, [mailto:meaning922@bit.edu.cn]）

出处： Science & Technology Review 2009 Vol.27 No.22 P48-53

摘要： The charge made of a mixture of explosive and dense inert metal particles is a kind of special heterogeneous explosive. After explosion, the particles ...

作者： LUO Jia;JIANG Lan;ZHANG Nai-ren;LUO Xiao-hong;LI Ben-ye;LU Jian-ping （¹School of Mechanical and Vehicular Engineering, Beijing Institute of Technology, Beijing 100081, China）

出处： Transactions of Beijing Institute of Technology 2009 Vol.29 No.3 P209-213

关键词： Markov chain;product family;refrigerator;reuse

摘要： Presents a methodology to plan the reuse strategies of common modules in a product family using concepts of function degradation, reliability, functio ...