作者： ZHANG Li-wei;ZHANG Qian;WANG Xue-feng;ZHU Dong-hua （School of Management and Economics, Beijing Institute of Technology, Beijing 100081, China Information College, Capital University of Economics and Business, Beijing 100070, China Department of Computer Science, Kyungwon University, Seongnam-Si 461701, Korea School of Management and Economics, Beijing Institute of Technology, Beijing 100081, China）

出处： 北京理工大学学报（英文版） 2009 Vol.18 No.4 P497-501

关键词： support vector machine;cross-validation algorithm;patent application count;forecasting

摘要： A forecasting system of patent application counts is studied in this paper. The optimization model proposed in the research is based on support vector ...

作者： MA Chao;ZHANG Ming;ZHANG Chun-lin;LI Zhi-xiang;YANG Jian-xin （School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong, China School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China）

出处： 北京理工大学学报（英文版） 2009 Vol.18 No.4 P437-442

关键词： joint reaction force;inverse dynamics;muscle-skeletal model;AnyBody Modeling System

摘要： Using the software Anybody Modeling System, a human static-standing musculoskeletal model based on inverse dynamics is presented, which are defined as ...

作者： WANG Hai-fu;YU Qing-bo;LIU You-ying;WANG Hui （State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100081,China State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100081,China School of Astronautics,Beihang University,Beijing 100083,China China Academy of Defenee Science and Technology,Beijing 100089,China）

出处： 北京理工大学学报（英文版） 2009 Vol.18 No.1 P6-10

关键词： orbital debris;impact risk;spacecraft;finite element model

摘要： A risk assessment system named meteoroid & orbital debris risk assessment system (MODRAS) developed for assessing risks of the spacecraft under the me ...

作者： LIU Yu-de;WANG Xi-bin;YANG Yue;L(U) Liang;LONG Zhen-hai;ZHAO Fu （School of Mechanical Engineering,Beijing Institute of Technology,Beijing 100081, China College of Mechanical Engineering, Beijing Technology and Business University, Beijing 100048, China School of Mechanical Engineering,Beijing Institute of Technology,Beijing 100081, China College of Mechanical Engineering, Beijing Technology and Business University, Beijing 100048, China）

出处： 北京理工大学学报（英文版） 2009 Vol.18 No.2 P171-175

关键词： advaced manufacturing;bio-manufacturing;bio-etching;Thiobacillus ferrooxidans (T.f.)

摘要： processing speed are controlled by pH value and temperature of etching liquid, in addition to swing rate of the the swing bed.

作者： LIU Feng;HUANG Yu;TAO Ran;WANG Yue （School of Information Science and Technology,Beijing Institute of Technology,Beijing 100081,China Department of Electronic Engineering,Naval Aeronautical Engineering Institute,Yantai 264001,China Department of Electronic Engineering,Naval Aeronautical Engineering Institute,Yantai 264001,China School of Information Science and Technology,Beijing Institute of Technology,Beijing 100081,China）

出处： 北京理工大学学报（英文版） 2009 Vol.18 No.1 P74-78

关键词： fractional Fourier transform(FrFT);resolution;linear frequency modulation(LFM) signal;chirp-rate

摘要： Distinguishing close chirp-rates of different linear frequency modulation (LFM) signals under concentrated and complicated signal environment was stud ...

作者： HE Yuan-hang;WU Bi;MA Yue-fen;ZHANG Qing-ming （State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100081,China State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100081,China Teaching and Research Center of Unmanned Aerial Vechicle,Artillery Academy of PLA,Hefei 230031,China）

出处： 北京理工大学学报（英文版） 2009 Vol.18 No.1 P56-59

关键词： helical flux compression generator;expansion uniformity of armature;printed probes in PCB

摘要： A measurement system has been developed based on high-precision printed probes in printed circuit board (PCB) and steep rising-time probe adapters,whi ...

作者： XING Ling;MA Jian-guo;LI You-ping;LIU Zhi-wen （School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China School of Information Engineering, Southwest University of Science and Technology, Mianyang 621010, China School of Information Engineering, Southwest University of Science and Technology, Mianyang 621010, China School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China）

出处： 北京理工大学学报（英文版） 2009 Vol.18 No.2 P215-219

关键词： interactive television;digital television (DTV);uniform content locator (UCL);scale-free properties

摘要： sumers to communicate with each other expediently. Experimental results show that DMTN can provide not only traditional TV services on schedule, but a ...

作者： LIU Yong-feng;ZHANG You-tong;XIONG Qing-hui （School of Mechanical and Vehicular Engineering,Beijing Institute of Technology,Beijing 100081,China School of Mechanical-Electronic and Automobile Engineering,Beijing University of Civil Engineering and Architecture,Beijing 100044,China School of Mechanical and Vehicular Engineering,Beijing Institute of Technology,Beijing 100081,China）

出处： 北京理工大学学报（英文版） 2009 Vol.18 No.1 P41-45

关键词： mesh generation;dynamic mesh management;KIVA-3V;internal combustion engine

摘要： To improve mesh quality for KIVA-3V a method has been developed for rapid mesh generation and dynamic mesh management with moving valves for internal ...

作者： WANG Pei;CHEN Lang;WANG Xiao-feng;NAN Hai;FENG Chang-gen （State Key Laboratory Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China Xi\'an Modern Chemistry Research Institution, Xi\'an 710065, China）

出处： 北京理工大学学报（英文版） 2009 Vol.18 No.2 P146-151

关键词： explosive;fast cook-off;numerical simulation

摘要： lly. The modeled results indicate that the optimum fuel pool is 1 000 mm wide, which can ensure complete engulfment of explosive cylinder by external ...

作者： WANG Jun-fang;GE Yun-shan;TAN Jian-wei;HE Chao;YOU Ke-wei;YOU Qiu-wen （School of Mechanical and Vehicular Engineering,Beijing Institute of Technology,Beijing 100081,China China Automotive Technology and Research Center,Tianjin 300162,China）

出处： 北京理工大学学报（英文版） 2009 Vol.18 No.1 P11-15

关键词： gasoline vehicles;particle emission;size distribution

摘要： Number concentration and size distribution from gasoline cars are investigated at transient modes on the chassis dynamometers,which are measured using ...