Digital library with multiple levels architecture model is researched and practiced.This paper introduces detaily digital library architectural structure, main features and functions, and latest services. They adopt the latest Web technology, muti-application server and component technology etc. for realizing digital library model.

This paper discusses that the standardization is the important pledge for constructing the digital library in China. It also discusses the urgency of the standardization and the standard system.

This paper introduces the interoperability issue of digital libraries,discusses some approaches to it and gives two examples to illustrate them.

This article briefly introduces the content of digital library,the development dynamic And situation analysis.And submitted some suggestions about digital library s construction.

Tutor to reading can improve the level of informat ion service of digital library, and make up the deficiency which comes forth during constructing digital resources. The inundant digital progressing of the libraries has also had great influence upon the work of tutor to reading of library. This paper discribes the model of the work, and considers that digital library must adopt methods against actuality ,which is the nonstandard system of management, ambiguous assignment and distempered working union, so as to do that work better.Industrialization is the ultimate escape of the work.

This paper make a serious survey and analysis of Chinese digital library thesis from 1994 to 2000 by CNKI database retrieval system of China.

The HTTP/Z39.50 gateway provide a new way to search and retrieve databases on Z39.50 servers on the Internet, and supply an effective technique to integrate the information search power of Z39.50 and accessibility provided by HTTP. The paper present a working model of the gateway. Also the key technology for realizing a stateful HTTP/Z39.50 gateway is mainly discussed.

Posts and telecommunications document database is one of the important content of document source and digital constructed in CALIS, it s data come from the major documents of posts and telecommunications in Chinese and English and are organized by the Thesaurus for P&T Technology. The Internet/Intranet solving project combining the data collection, process, administer and service and based on Quick IMS and IMS Web is adopted. Basing on Solaries operating system and the database system of Sybase and IMS for softw are flatfo rm , the techno logy of browser, Web server and application database are adopted, the secondary exploitation is done combining“MELINETS ”produced by Beijing University of Posts and Telecommunications Library. The function of documents issued on internet and multi- standard retrieval mode are realized.

This paper introduces the function of circulation and OPAC modules in HORIZON and analyses the table struction and system settings about this two modules.

This article elaborates on the necessity of charging fees for the consultation services offered by the library on the Web. It also discusses the factors influencing the charge, evaluating principles, ways to take the charge, and in addition, the practical problems in operation.

The article introduces the Uighur MARC from the US MARC format. Analys is the processing of Uighur,Kazakh and Kirghiz script of computer application in Xinjiang. Provide some consulting advice on digital library for Uighur document.

This article elaborates some principle and architecture about general search engine, and then introduces the concept and framework of META Search Engine.and brings forward a new idea that integrates the general search engine with OPAC-based retrieval system . This method maybe resolves the problem about data heterogeneity.

Web information retrieval is integrated with artificial intelligence, data mining, natural language processing, computer network, database technology, etc. search engine resolves partly users information needs, but it can t satisfy users needs. This paper offers a review of the current search engine design. Especially from the view of Web link analysis, how to apply link structure into search engine is popular research topic.

The article gives introduction to search strategies and function of NCBI Genoma.

With the rapid development and extensive use of WWW, it is important for information filtering against the more and more serious problem of Information overload. The significance?theory background of information filtering and research on information filtering system were dissertated in this paper, and the existent problems of information filtering at present were discussed.

Introducing specialties and functions of Ovid Information Retrieval System on Web-CGI, and the system database retrieving method.

Biological researcher at present must have predisposition to utilize fully bioinformatical resources on internet. This paper introduced and discussed briefly the virtues and skill of how to make good use of powerful computer network by means of best convenient and quickly methods including searching engines, biological databases, biological tool software, biosci newsgroup etc on internet to get bioinformatical resources. offering for reference.

This paper introduced the basic concept,main characteristics and ADO component of ASP.A design method of Web database query system is explained,and an example of Web database query system based on ASP was given.

The article discusses three main technologies of implementing Internet active information service-push technology, vertical portal, and intellectual agent, their respective characteristic, and their present conditions at home and abroad.

Network security is more and more important. This paper summarizes network security definition and the solution policies and the security technology. It also introduced how to construct the security management protocol of a computer network.

This paper introduces and analyses the net programme technology, and analyses the development and trend of net programme technology.

CORC (Cooperative Online Resource Catalog) is OCLC s next generation of cataloging service, providing an effective way to create descriptive records for electronic resources and options to assist librarians in providing their users with enhanced access to Web resources. The author introduces the CORC system and its cataloging utility, main features, databases, and other options. Based on the author s experience of using CORC in the United States, the author provides suggestions for improving the sharing of cooperatively cataloged Web resources   in China

It is the important information search tool of Internet chemical resource navigation systems for chemistry professionals. The resource classification system is the basis for us to set up and maintain the navigation webpages of chemical resources on Internet. This article discusses the status of resource classifications after the 11 famous chemical resource navigation websites are compared. The solutions and the modifications are discussed before the systemic Internet resource classification will be established.

Electrical commercial has become a hot topic in the Internet era.The paper mainly discusses the development,characteristric and questions of electrical commerce,bringing forward some countermeasures for it.

In this paper, through the discussion and comparison of the current running pattern of E-commerce, the author has found the defects and shortcomings delimited within the mentioned pattern, therefore suggest the necessity of building logistical delivery system which is based on the shared network resources and supported by information technology, finally, the author has made an effort to configure a solutive logistical delivery design in the pattern of B2B2C, and the construction of the resources concerning the customers.

This paper discusses the importance of data construction in information system and gives a brief description of the practices of database for financial and securities information system in Shenzhen Genius Information Technology Co.,Ltd.

This paper gives a definition of PPC unusual jam papers trouble first all, and then analyzes the cause with typical problems on service training and field service, introduces emergency measures.

This text is based on the theory of electromagnetism response, it elaborates the work principle of JX-5 home-made books monitor. recommend the of , fixing and debugging of intelligent monitor.

With the experience for online transmitting electronic dissertations on the campus network, the authors classify 4 types of FAQs for transmitting dissertation, and give effective solution to them in this thesis.

This article states the heart work of western academic document information network by analyzing the automatic networking construction and the problems being necessarily resolved, and also discuses in the plans and the channel in the total development of university of document information.

The text introduce basic principle of Trojan horse, a few variety of famous Trojan horse at home and abroad, and clear method and countermeasure of Trojan Horse.