TSINGHUA SCIENCE AND TECHNOLOGY

ISSN 1007ª²0214 CN 11ª²3745/N

Vol.3,No.2,June1998

CONTENTS

Mechanics
Three-dimensional Mathematical Modeling of a Glass Melting System Qi Jianwei,Hu Weilin,Guo Zengyuan 949-954
Experimental Study of Effects of Cross Wind on Flow in Natural-draft Dry-cooling Towers Zhai Zhiqiang,Zhu Keqin,Fu Song 955-958
Experimental Study of Coal Combustion in an Improved Spouting-cyclone Combustor Wang Xilin,Ma Zhanhua,Wang Dexin, et al 959-962
Experimental Investigation of Turbulent Shear Flow by PIV Xu Hongqing,Wu Jia 963-965
Experimental Investigation of the Dynamic Deformation of LY12 Aluminum Plate Heated by Strong Electrical Current Dai Fulong, Wang Guotao,Xie Huimin, et al 966-970
Thermal Deformation Measurement and Stress Analysis of PQFP Assembly Dai Fulong, Shi Ling,Wen Xiumei 971-977
Experimental Investigation of the Water Impulse Force and Moment on the Disk of a Butterfly Check Tang Rongming, Wang Xuefang,Li Qianyun, et al 978-980
Three Dimensional Numerical Prediction of the Flow and Temperature Field at the Surface of a PDC Bit Cui Guixiang, Xu Weiran,Zhang Zhaoshun 981-985
Efficient Hybrid Method for Oldroyd-B Fluid Flow Computations Wang Baoguo, Wang Dong,Liu Qiusheng 986-990
Information Science and Technology
Development of a Support Tool for Rapid Application Integration of CIMS Fan Yushun, Wu Cheng 991-996
Approximate Degree Reduction of Bezier Curves Hu Shimin, Sun Jiaguang, Jin Tongguang,et al 997-1000
Approximate Degree Reduction of Triangular Bezier Surfaces Hu Shimin, Zuo Zheng,Sun Jiaguang 1001-1004
Extraction Silhouette Curves of NURBS Surfaces by Tracing Silhouette Points Li Xuejun, Sun Jiaguang,Yang Changgui 1005-1008
Representing Conics Using NURBS Curves Qin Kaihuai 1009-1015
Reliability Research of Cimputerized Voting System Tong Yanling, Tang Jingxin 1016-1021
Mechanical Engineering
Effect of Processing Procedure on Critical Currents Density of Ag sheathed (Bi,Pb)2Sr2Ca2Cu3Ox Superconducting Tapes Ma Yanwei, Wang Zutang 1022-1025
Structure and Control of an Inverter Type Power Source for Robot Arc Welding Du Dong, Han Zandong,Xiao Ping, et al 1026-1028
Chemical Engineering and Chemistry
A Thermodymamic Model for Calculating the Surface Tension of Pure Liquids and Liquid Mixtures Li Chunxi, Li Zhibao,Li Yigui, et al 1029-1034
Synthesis of Oligomer with N-(O,O-diisopropyl) phosphoryl Arginine and its Effect on the 5ª²Hydroxytryptamine Receptor Li Zhaolong, Fu Hua,Zhao Yufen 1035-1039
Kinetics of Microbial Growth and Synthesis of Poly(3ª²hydroxybutyrate) Using Fedª²batch Culture of Alcaligenes Eutrophus with Phosphorus Limitation Li Hongqi, Ryu Hee Wook,Chang Yong Keun, et al 1040-1043
WC Particle High Speed Steel Composites Manufactured by Ultrasonic Spray Forming Yuan Wei, Hu Yue,Zhang Liying, et al 1044-1047
Monte Carlo Method and Its Variance Reduction Techniques for Coal Slurry Inª²stream Determination Wang Rushan, Jiang Hongyu 1048-1052



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