TSINGHUA SCIENCE AND TECHNOLOGY
1999, Vol. 4 No.1

　CONTENTS　
Information Science and Technology

Integrated Multi－view Modeling for the ProductDevelopment
Process　XIONG Guangleng， HAO Liwu，PENG Yi1271－1277
Current State and Development Trends for Integration Platforms　FAN Yushun， WU Cheng1278－1281
CORBA Based CIMS Application Integration　SHI Wei， WU Cheng，FAN Yushun1282－1286
Collection and Management of Shop－floor Controller 　DataTAO Dan， YANG Jianhua，WU Cheng1287－1290
Object Management Framework for CAx Information　Management
LI Heliang， HUANG Liping,LI Jianming, et al1291－1296
A Dynamic Job Shop Scheduling Method Based on Lagrangian Relaxation　XIONG Rui, FAN Yushun,WU Cheng1297－1302
Integrating EMIS in CIMS　CHEN Jian, WANG Jingliang,SHAO Beien1303－1306
Haar Wavelet and Its Application in Optimal Control of Linear Time-invariant Systems　LIU Xiangqian, ZHANG Lin1307－|1310
Analysis of Linear Time-varying Systems via Haar Wavelet　LIU Xiangqian, ZHANG Lin1311－1313
Expert,Neural and Fuzzy Systems in Process Planning　Bernard S.Maiyo, WANG Xiankui，LIU Chengying1314－1319
Communication System for CIMS Application Integration 　Platform  　HUANG Tao， WU Xiaobin，SHAO Danhua， et al1320－1324
 Adaptive Interval Configuration to Enhance Dynamic Approach for Mining Association RulesHU Kan, CHEUNG David W， XIA Shaowei1325－|1333

Nuclear Energy and Technology

Dynamic Bandwidth Allocation Scheme in Multi－user VBR Communication System　XIE Tao， ZHAO Ming，HE Yun， et al1334－1337
Cobalt－60 Container Scanner　AN Jigang， ZHOU Liye， LIU Yisi, et al1338－1340
Economic Assessment of Large Grid－connected Wind Farms——Avoided Cost Method　WEI Jie， GUO Yuan,GU Shuhua1341－1344
Water－conserving Potential for Agriculture in theTarim Basin 　YU Suhua， ZHAO Xiusheng,DAI Jian1345－1348
Application of Finite Difference Method to the Analysis of HTTR Reactor Cavity Natural ConvectionZANG Xinian, HUANG Bing1349－1352

Engineering Mechanics

Thermal Stress Relaxation of Nonhomogeneous Coatings　XU Qianjun， YU Shouwen,KANG Yilan1353－|1357

Hydraulic Engineering

ExperimentalAnalysis　of Pressure   Fluctuations  behind a Bottom Aerator　NIE Mengxi1358－1362
Outlet Conditions Causing Cavitation in the Invert of an Open Channe　lNIE Mengxi1363－1366
Behavior of Plastic Concrete Diaphragm Walls in Three Gorges Project　ZHANG Jianhong， HU Liming，PU Jialiu， et al1367－1370
Depth－averaged Nonlinear k-ε Model and Technique for Its Program Development　HONG Yiping， ZHOU Xueyi， CHEN Yongcan， et al1371－1374

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