遥感技术在送电线路选线中的应用研究

The Application of Remote Sensing Technology to Transmission Line Selection

余凤先[1] 汪友明[2]

利用遥感图像的解译可有效调查送电线路走廊带内的地质条件、灾害发育程度和林区分布，并多因素综合评价工程地质条件。通过比选，提出推荐路径和修改意见，这对线路选线和线路安全具有重要意义。[著者文摘]

Engineering geological conditions along a transmission line may be assessed on the basis of geological conditions, distribution of geological hazards and forest along the transmission line interpreted by remote sensing image.[著者文摘]

面向对象软件回归测试选择策略

Select Strategy of Regression Testing on Object-oriented Software

谭晓兰 缪力 张大方

回归测试在软件维护阶段是一个重要且必须的一个工作，它为修改后的软件的正确性提供保证，回归测试选择技术是选择已存在的原有程序的测试用例集构成新的测试用例来测试修改后软件，通过对已存在测试用例集，选择有限测试用例对修改后软件测试可以减少测试周期和测试成本。提供了一个面向对象软件选择策略测试方法，对修改前软件和修改后软件创建类关系图，利用该模型进行测试，这种选择策略确保软件质量是有效，经济，安全的。[著者文摘]

Regression testing is an expensive but necessary maintenance activity performed on modified software to provide confidence that changes are correct and do not adversely affect other portions of the software. A regression test selection technique chooses, from an existing test technique for regression test selection. A regression test selection technique can save time and efforts. A new technique for regression test selection is presented, algorithms is constructed to class-related graph for program and its modified version and use these graphs to select tests that ex- ecute changed code from the original test suite. Under certain conditions the algorithms are safe, efficient, elecnomic and precise.[著者文摘]

中国人口迁移的选择性：基于五普数据的分析

Migration Selectivity in China： An Analysis Based on the 2000 Census Data

唐家龙[1] 马忠东[2]

人口迁移的选择性一直以来都是人口学家和经济学家关注的焦点。文章利用2000年中国人口普查微观数据，重点考察了1990年代后期在转型社会中中国人口迁移的选择性问题。研究表明，中国人口迁移具有较强的年龄选择性和教育选择性，但青年迁移者中，女性所占比例有所上升且呈现出高于男性迁移风险的态势。同时，户籍制度是影响迁移决策和决定迁移类型的重要因素。[著者文摘]

Selectivity of human migration has long been the focus of demographers and economists. This paper goes into detail on the migration selectivity of Chinese migration in the transitional era of late 1990s, using the 2000 Chinese population census micro data. It reveals that the young adults and the more educated dominate the migrations stream with a more balanced sex ratio for the 15～29 age group, whereas more females in their early twenties are on the move than males. Meanwhile, the household registration system is the major determinants for migration decision and type of migration.[著者文摘]

行政诉讼法修改的理念信守与路径选择

The Way Selected to Keep the Ideas of the Law of Administrative Procedure when Amending

张坤世

法的安定性、人权保障、审判独立、充分发挥诉讼功能以及程序优化是行政诉讼法修改过程中必须信守的基本理念.因此,拓宽受案范围和实体救济面、处理好法的修改与法的安定性的关系、确保行政审判权的独立行使以及优化行政诉讼程序,在行政诉讼中确立简易裁判程序、和解和调解程序以及建立公益诉讼、执行诉讼制度是行政诉讼法修改的基本路径选择.[著者文摘]

有选择嵌入水印的关系数据库管理系统实现

Realization of user-based selective watermarking RDBMS

周明 王建民 王朝坤 李德毅

提出了一个可以在关系数据库系统中基于不同用户有选择地为关系数据嵌入水印的方案,并且基于PostgreSQL实现其原型系统,命名为USWRDBMS。它在查询数据时根据用户的不同有选择地为关系数据添加水印信息,可以分别为内部用户和外部用户提供原始数据和嵌入水印的数据。该系统通过执行特定的SQL语句来实现对水印参数的添加、修改和删除,从而实现对关系数据版权的保护。[著者文摘]

This paper presented a new solution that selectively watermarks relational data based on the differences of users. Also, it＇s realization was based on PostgreSQL. Through the new RDBMS, called USWRDBMS, it realized the protection of relational data by dynamic watermarking the relation data while accessing. More important, through the USWRDBMS it could manage the watermark parameters easily by SQL.[著者文摘]

在C#中使用窗体接收海量数据输入

李学武 冯根生

在工程实际中，常会面对海量数据被要求输入，本文阐述了如何从用户的角度对这些数据从逻辑上进行分类，又从程序设计者的角度在实现途径上进行合并处理，并通过一段实例介绍了利用C#语言规范中foreach语句循环访问的功能来“遍历”某（每）控件容器中的所有控件，实现对一批数据的集体操作。[著者文摘]

ILASⅡ系统读者数据批量建立的方法研究

Research into Construction of Reader Data in the ILASⅡ System

王雁博[1] 张九东[2]

IlasⅡ系统的读者库建设是一项繁琐的工作，笔者根据工作实践，结合IlasⅡ系统定长数据接收这一模块对读者库数据的批量建立进行了研究和实践．总结出建立读者定长数据和快速导入读者数据的方法．[著者文摘]

Construction of reader data in the ILASⅡ system is a complex task. Combined with reception of data, its construction is studied in this paper. Methods of building fixed and long data and rapid introduction are summed up.[著者文摘]

一种基于WPDAG的回归测试选择方法

Regression Test Selection Method Based on WPDAG

刘芳 姚跃明

提出了一种基于WPDAG的回归测试选择方法,利用压缩的全路径动态执行过程生成修改影响集,可以有效地提高测试选择精度,降低测试选择成本。[著者文摘]

A regression test selection method based on WPDAG is proposed, it can increases the test selection precision and reduces the cost of testing effectively by changing impact set through the compressed whole-dynamic execution process.[著者文摘]

一种XML数据并行更新方法

Parallel update approach for XML data

张元平 曾一 闵智 张利武 袁纲 肖敏

提出了一种支持在分布式系统中并行地修改XML数据的方法策略,实现了不同的系统客户端可以同时修改同一个XML数据的不同部分或相同部分。支持修改操作的分散式管理,即客户端在不与服务器进行交互的情况下进行正确的修改。支持动态客户端和动态权限控制信息,适用于在更新过程中参与更新的客户端和更新权限都发生变化的情况。[著者文摘]

This paper proposed a strategy to support parallel modification to XML data in distributed environments. With this approach different users were able to simultaneously modify different portions or the same portions of the same XML data, and decentralized management of update operations was supported in which a user could perform his privileges and verify the correctness with the digital signature technology and without interaction with the data server. Dynamic users and dynamic policies were supported which means a user might join in or drop out of during the modify process and the privilege of a user over some portions of a XML data might be changed.[著者文摘]