RDS在ⅡS上的应用和研究

文章介绍了如何在Windows NT中配置ⅡS,以及RDS在ⅡS上的应用和测试。     

Organized knowledge sharing with book-centered Web sites: An architecture, implementation and analysis

For educators, the World Wide Web offers a valuable technology for knowledge sharing. It can complement more traditional approaches to knowledge sharing such as books and lectures. Here, we identify and differentiate three major approaches for Web-based knowledge sharing: course-centered sites, subject-centered sites, and book-centered sites. A rationale for book-centered sites, those developed to facilitate students’ and instructors’ efforts in courses that use the book, is advanced. We introduce an architecture of features that can guide developers of such sites. This is illustrated by a book-centered site implemented according to the architecture. Several sites for introductory business computing books are compared and contrasted in terms of the architecture, suggesting ways in which each can be extended. This revised version was published online in July 2006 with corrections to the Cover Date.     

The Term Vector Database: fast access to indexing terms for Web pages

We have built a database that provides term vector information for large numbers of pages (hundreds of millions). The basic operation of the database is to take URLs and return term vectors. Compared to computing vectors by downloading pages via HTTP, the Term Vector Database is several orders of magnitude faster, enabling a large class of applications that would be impractical without such a database. This paper describes the Term Vector Database in detail. It also reports on two applications built on top of the database. The first application is an optimization of connectivity-based topic distillation. The second application is a Web page classifier used to annotate results returned by a Web search engine.     

A digital photography framework enabling affective awareness in home communication

By transforming the personal computer into a communication appliance, the Internet has initiated the true home computing revolution. As a result, Computer Mediated Communication (CMC) technologies are increasingly used in domestic settings, and are changing the way people keep in touch with their relatives and friends. This article first looks at how CMC tools are currently used in the home, and points at some of their benefits and limitations. Most of these tools supportexplicit interpersonal communication, by providing a new medium for sustaining conversations. The need for tools supportingimplicit interaction between users, in more natural and effottless ways, is then argued for. The idea of affective awareness is introduced as a general sense of being in touch with one's family and friends. Finally, the KAN-G framework, which enables affective awareness through the exchange of digital photographs, is described. Various components, which make the capture, distribution, observation and annotation of snapshots easy and effortless, are discussed.     

附网存储设备的安全机制

研究了附网存储的安全机制 ,阐述了一种用于附网存储设备的加密权能系统。     

公伯峡水电站导流隧洞支护施工技术

介绍了网喷混凝土、超前锚杆、锚筋桩、钢支撑、钢纤维混凝土、现浇混凝土提前衬砌、管棚法施工等多种支护措施在公伯峡导流洞工程中的应用。     

山西万家寨引黄工程隧洞变形缝防渗施工技术

隧洞防渗处理直接关系到隧洞工程能否正常使用及安全运行,变形缝防渗处理是隧洞防渗的关键。文中重点分析介绍了山西万家寨引黄工程隧洞变形缝防渗施工中橡胶止水带、双组分聚硫密封胶、闭孔泡沫板及遇水膨胀防渗条的施工技术措施及方法。     

长距离水工隧洞开挖安全施工方案制定

建设长距离水工隧洞是今后水利调水工程的发展趋势。文中阐述了长距离输水隧洞建设中的重点与难点,并以福建省漳州市古雷港供水工程3标隧洞的开挖为例,简要说明了制定开挖安全施工方案的方法、过程及效果。     

河曲引黄灌溉工程隧洞施工的质量控制

介绍河曲引黄灌溉工程隧洞施工前准备、洞挖、洞挖支护、隧洞衬砌等隧洞施工阶段的质量控制工作.     

大断面软弱围岩隧道洞口段施工工法比较分析

山岭隧道建设条件复杂,通常洞口段埋深较浅、围岩破碎,在施工过程中易发生坍塌、边仰坡失稳等事故．根据某隧道洞口段地质情况、地形条件以及设计参数,对拟采用的交叉中隔壁法和双侧壁导坑法进行施工和数值分析对比．研究结果表明：从施工上看,采用交叉中隔壁法有利于工期;从数值分析看,采用交叉中隔壁法和双侧壁导坑法完成开挖后,隧道结构y向最大沉降分别为6．65cm和1．68cm,临时支撑X向最大变形分别为20．5cm和4．42cm,采用后者施工变形更小;从计算结果看,采用双侧壁导坑法施工,围岩和隧道支护结构受力更小．采用交叉中隔壁法施工后,C25喷射混凝土Y向最大拉应力为3．07MPa,远大于采用双侧壁导坑法的1．27MPa,且超过该喷射混凝土的极限抗拉强度．因此,从隧道变形和受力分析看,采用双侧壁导坑法施工更安全．