横泉水库供水发电洞工程地质分析与评价

通过大量野外工程地质勘察与测试工作，在此基础上给出了横泉水库供水发电洞的工程地质分析与评价，从而使该水库的施工有了充分的理论依据。     

基于SONET/SDH的存储网络容灾技术分析

文章分析了存储网络（SAN）容灾技术，认为在某些企业中，数据是至关重要的资产之一，是业务系统运行的血脉．保护企业的重要数据是企业成功的关键因素。文章讨论了设计容灾技术解决方案应考虑的各种因素，并给出了基于SONET／SDH的存储网络技术的体系架构设计方案。     

Effective Location Based Services with Dynamic Data Management in Mobile Environments

With the proliferation of mobile computing technologies, location based services have been identified as one of the most promising target application. We classify mobile information service domains based on feature characteristics of the information sources and different patterns of mobile information access. By carefully examining the service requirements, we identify the dynamic data management problem that must be addressed for effective location based services in mobile environments. We then devise a general architecture and cost model for servicing both location independent and location dependent data. Based on the architecture and cost model, we propose a set of dynamic data management strategies that employs judicious caching, proactive server pushing and neighborhood replication to reduce service cost and improve response time under changing user mobility and access patterns. Detail behavior analysis helps us in precisely capturing when and how to apply these strategies. Simulation results suggest that different strategies are effective for different types of data in response to different patterns of movement and information access. Shiow-yang Wu is an associate professor of the Department of Computer Science and Information Engineering at National Dong Hwa University, Hualien, Taiwan, R.O.C. He received the BS and MS degrees in computer engineering from National Chiao Tung University, Hsinchu, Taiwan, ROC, and the PhD degree in computer science from the University of Texas at Austin in 1984, 1986, and 1995, respectively. His research interests include data/knowledge bases, mobile computing, distributed processing, intelligence information systems, and electronic commerce. Kun-Ta Wu was born in Taipei, Taiwan, R.O.C., in 1976. He received the B.S. degree in computer science from Soochow University, Taipei, Taiwan, R.O.C., in 1999 and the M.S. degree in computer science and information engineering from National Dong Hwa University, Hualien, Taiwan, R.O.C., in 2001. Currently, he is an Assistant Researcher in the Domestic Division at Science and Technology Information Center, National Science Council, R.O.C., as a member of Information Gathering and Analysis Group of National Information and Communication Security Taskforce. His research interests include mobile computing, wireless network and information security.     

移动通信系统中功率控制研究

在阐述功率控制在移动通信系统中的发展过程的基础上，着重研究了WCDMA系统的功率控制，最后对功率控制未来的研究方向做了简要的分析。     

稳压并抑制谐波的新型电源

由于电网谐波污染严重，对谐波的抑制已成为供电部门的重要任务。文章介绍一种既能稳压又能抑制谐波的新型电源，它采用串联型有源电力滤波的方法，通过瞬态电压补偿后可得到纯净的三相正弦平衡电压。     

多区双重介质复合气藏渗流数学模型及其压力动态

四川盆地大多数气藏属于裂缝孔隙型气藏,气藏非均质性强.经典的径向均质复合试井解释模型与气藏实际情况不相符,解释结果与实际地质情况出现抵触现象.针对这种情况,建立了多区双重孔隙介质复合地层模型,求得了该模型的拉氏空间解,分析了其典型的压力动态特征,并对影响因素可能对曲线产生的影响进行了分析.     

Fenton试剂降低采油污水CODCr的研究与应用

针对辽河油区超稠油采油污水的特点，采用Fenton试剂催化氧化，对采油污水处理进行研究。实验研究及现场应用结果表明，此方法对污水的CODCr具有良好的去除效果。处理后污水经过简单生化，进一步降解污染物，能够实现稳定迭标排放，且具有能耗低、运行成本低和操作简单等特点。     

注水吞吐开发低渗透裂缝油藏探讨

室内油层岩心驱替实验研究结果表明，注水吞吐采油技术可发挥油层毛管力吸水排油作用，实现水驱，能有效地补充地层能量，恢复地层压力。通过多周期的注水吞吐开发，逐渐扩大水驱波厦半径，提高驱替效率。油层润湿性和渗透率是影响注水吞吐开发效果的主要因素。该技术简单易行，在头台油田实施后，效果十分显著，对同类油藏的开发真有指导意义。     

FF现场总线的网段负载能力的设计及计算

从生产安全运行的管理要求；电压压降和电流的限制及信号的衰减；网络运行时间的要求；系统设计的影响；备用能力的考虑等各个方面，结合上海赛科聚苯乙烯项目的具体设计，分析隔爆条件下FF现场总线的H1网段负载能力的设计，以供大家探讨。     

反凝析现象对雅克拉凝析气处理工艺的影响

雅克拉凝析气田位于塔里木盆地北部，地处新疆维吾尔自治区阿克苏地区境内，它是中国石化集团公司西北分公司探明并投入开发的最大凝析气田，采用衰竭式开采。通过对井口物流的相态研究，认识了凝析气的反凝析规律，采取了提高凝析气中C^＋₃收率的方法，以确保外输干气的烃露点达到管输要求，并提高该气田开发的经济效益。在工艺方案设计过程中，通过多种工艺方案比选，确定选用膨胀机进口压力为6.0 MPa的膨胀机制冷工艺， C^＋₃收率达到92％以上，外输干气烃露点满足管输要求。