TSINGHUA SCIENCE AND TECHNOLOGY
Vol.5,\ No.2,\ June\ 2000
CONTENTS
PHYSICS
Wave vector dependent Tunneling Transmission Characteristics in Periodic and Quasiperiodic Semiconductor Superlattices GUO Yong WANG Hao GU Binglin 121-127
Neutron rich 104,106,108 Mo Isotopes in the Generalized Collective Model LI Ming, M.Sakhaee, ZHU Shengjiang, et al 128-131
Dynamical Suppression of Magnetic Tunneling MAO Juanjuan WANG Xiaobing, Rong, et al 132-136
Supersymmetry and the Dirac Equation with Vector and Scalar Coupling Potentials TU Changcun, ZHU Weibin, RUAN Dong 137-139
MATHEMATICS
An Extension of Sobolev's Theorem WANG Xiaoqun 140-144
Volume Dispersion of Point Sets and Quasi Monte Carlo Methods WANG Xiaoqun 145-149
Fundamental Unit System and Class Number for Real Number Fields of Type (2,2,2) WANG Kunpeng ZHANG Xianke 150-153
A Functional Equation Governing the Motion of a Compressible Fluid Flow M.H.Mahmoud 154-158
CHEMISTRY AND CHEMICAL ENGINEERING
Cytotoxic Compounds from Zanthoxylum Americanum JU Yong ZHAO Yufen
Still Cecil C et al 159-162Synthesis of OPhosphorylated Oligopeptides Using Phosphoramidite LI Yanmei, ZHAO Yufen, Waldmann Herbert 163-166
Synthesis and Properties of Some Novel Liquid Crystals: Chiral (4 alkoxy 2,3 difluorobenzoyloxy) 4 biphenyl Carboxylates HU Gang TANG Hong XU Shouyi 167-171
Crosslinking of PVA Pervaporation Membrane by Maleic Acid MENG Pingrui CHEN Cuixian YU Lixin, et al 172-175
Synthesis and Absorption Characteristics of Two Infrared Cyanine Dyes LI Bin, TANG Liming, DONG Hanpeng, et al 176-179
INFORMATION SCIENCE AND TECHNOLOGY
Variable Bandwidth Smoothing Based on Cluster Analysis ZHOU Xiaobo ZHOU Lei ZHANG Xianda 180-182
Multiple Face Location Using Motion Information YUAN Chao ZHANG Changshui 183-186
Convergence Analysis of Forgetting Gradient Algorithm by Using Martingale Hyperconvergence Theorem DING Feng, YANG Jiaben, XU Yongmao 187-192
Data Filtering and Statistical Process Modeling WANG Jingchun, JIN Yihui, Morris Julian 193-200
Sensor Fault Tolerant Generic Model Control for Nonlinear Systems XIE Xiaoqing ZHOU Donghua JIN Yihui 201-207
Epitaxy of SiGe Layers by Ultrahigh Vacuum Chemical Vapor Deposition LUO Guangli, CHEN Peiyi, QIAN Peixin, et al 208-210
Efficient Heuristic Variable Ordering of OBDDs LONG Wangning MIN Yinghua BIAN Jinian, et al 211-216
Semantic Model for Voice Controlled Telephone Dialing and Inquiry Systems ZHANG Jianping, WANG Zuoying 217-221
HYDRAULIC AND HYDROPOWER ENGINEERING
Comparison of Energy Dissipation with and without Aerators NIE Mengxi 222-225
Computing Depth averaged Flows Using Boundary fitted Coordinates and Staggered Grids HONG Yiping ZHOU Xueyi
CHEN Yongcan, et al 226-230Numerical Analysis of the Mixing Zone for a Vertical Discharge into a Tidal River LI Yuliang, ZHOU Xueyi, HU Tao 231-235