共查询到20条相似文献，搜索用时 62 毫秒
1.
高校教务管理系统的基本功能就是进行数据处理,其数据存储、业务处理和界面操作等都与系统的数据库直接联系,数据库的设计的好坏是教务管理系统开发的基础和关键。本文从教务管理系统数据库需求分析、数据库结构设计、数据库安全设计和数据库性能优化几个方面对基于B/S与C/S混合结构的教务管理系统的数据库设计进行了阐述。 相似文献
2.
本文介绍了ACCESS数据库的特点,针对仓储管理系统的开发设计,在分析了仓储管理系统的体系结构的基础上,对其数据库开发设计方法和步骤进行了研究,ACCESS数据库开发仓储管理系统可以实现仓储信息化,提高企业的经济效益。 相似文献
3.
市容环卫与规划的工作越来越纳入城市发展的重心,所以GIS的应用也就变的更加广泛。这一20世纪60年代就提出的理念已经被许多国家和地区采用。面对现代化城市市容管理,环卫规划和工作引入高科技技术是目前的发展方向。本文将以此为出发点,对环卫规划中地理信息系统GIS与GPS的结合进行深入的探讨和研究。提出新型的市容环卫工作管理系统的构建模型。 相似文献
4.
关系型是当前数据库管理系统的主要数据模型结构，但是非关系型的数据模型依然在现实世界中存在。数据的管理除了数据库管理系统之外，还可以通过XML来完成，结合XML和数据库两种技术，即可使非关系型数据模型在关系型的数据库管理系统中得以方便地实现。 相似文献
5.
针对变电站运行监控数据管理需求较大的现实,重点对变电站数据库管理系统进行了设计研究,采用分布式异构模式,给出了变电站分布式数据库管理系统的体系结构,并结合实际运行中的数据同步更新设计了数据同步策略,对于进一步提高变电站数据库管理应用水平具有一定借鉴意义. 相似文献
6.
基于数据库技术和网络技术的局域网监控和管理系统的构建,不仅能够达到电子办公和局域网监控的一体,同时还能够将分散的计算机终端系统进行统一管理,进而达到提高网络管理的水平。首先简单介绍了局域网监控和管理系统,然后详细分析基于网络和数据库技术的局域网监控与管理系统的整体设计和局域网监控与管理各个模块的设计的策略,以供参考。 相似文献
7.
试题库管理系统可对试题进行科学、集中、有序、有效的管理,具有组卷灵活、更新方便、查询快捷等优点,受到了教师们的青睐。本文设计了ACCESS后台数据库,采用VISUALBASIC为前台开发工具,通过ADO控件连接数据库,开发了具有题库存储、检索,试卷自动和手动管理,系统用户管理等功能的试题库管理系统,并以《数据库技术及应用》课程为例,对系统进行了测试和运行,达到了设计要求和目的。 相似文献
8.
开发一个易于操作、界面友好的人力资源简历管理系统。利用自顶向下、逐层分解的方法设计了基于 Java的人力资源简历管理系统,该系统共划分为5个模块,分别是需求管理模块、数据统计模块、系统管理模块、简历库管理模块、渠道模块。数据库设计是整个设计过程的重点,通过对数据库进行分析和设计,实现了名为H RM S的数据库设计,为进一步完成该系统设计奠定了基础。 相似文献
9.
依据一般数据库管理系统的开发模式．利用Visual FoxPro6.0数据库管理系统软件(简称VFP)设计开发适合资料室使用的图书管理系统。 相似文献
10.
图书馆管理系统的设计的基本思想是用一张图书馆的IC卡管理逐步替代条码管理,通过IC卡的读写设备,实现科学化的管理,设计的基本原则包括先进性、系统设计灵活、规范化管理和简便友好用户界面等。实现图书馆管理系统的技术路线关键在于卡的设计,各系统的数据共享,以及系统的安全性,主要主要包括中心数据库,门禁管理系统、电子阅览室管理系统、收费系统等部分。通过数据库服务器平台的各个模块功能来实现需要而又不影响已有的应用程序。 相似文献
11.
A research group led by Prof. ZHAI Qiwei from the Institute for Nutritional Sciences under the CAS Shanghai Institutes for Biological Sciences has discovered that even relatively low doses of resveratrol-a chemical found in the skins of red grapes in red wine-can improve the sensitivity of mice to the hormone insulin according to a report in the October issue of Cell Metabolism.…… 《中国科学院院刊(英文版)》2008,22(1):14-15
Aresearch group led by Prof. ZHAI Qiwei from the Institute for Nutritional Sciences under the CAS Shanghai Institutes for Biological Sciences has discovered that even relatively low doses of resveratrol--a chemical found in the skins of red grapes and in red wine--can improve the sensitivity of mice to the hormone insulin, according to a report in the October,2007 issue of Cell Metabolism. As insulin resistance is often characterized as the most critical factor contributing to the development of Type 2 diabetes, the findings“provide a potential new therapeutic approach for preventing or treating” both conditions, the researchers said. 相似文献
12.
《中国科学院院刊(英文版)》2008,22(1):2-3
CAS should stick to the principle of rendering service to, and giving impetus for, the development of China＇s science enterprise by making S＆T innovations, said CAS President LU Yongxiang. The CAS president made the remarks in a recent talk to communicate the gist of the winter session of the Party＇s Leading-member Group at CAS, which was held from 7 to 11 January in Beijing. 相似文献
13.
Marjorie Armstrong-Stassen Margaret Landstrom Ramona Lumpkin 《The Information Society》1998,14(2):153-164
This study examined how students who had no prior experience with videoconferencing would react to the use of videoconferencing as an instructional medium. Students enrolled in seven different courses completed a questionnaire at the beginning of the semester and again at the end of the semester. Students at the origination and remote sites did not differ in their reactions toward videoconferencing but there was a significant difference for gender. Women reacted less favorably to videoconferencing. Compared to the beginning of the semester, students reported significantly less positive attitudes toward taking a course through videoconferencing at the end of the semester. There were no significant differences in students' attitudes toward videoconferencing across courses at the beginning of the semester but there were significant differences across the courses at the end of the semester. The results suggest the need for better preparation for both students and instructors. 相似文献
14.
《中国科学院院刊(英文版)》2008,22(1)
With great care, Dr. ZHOU Zhonghe takes out a package wrapped by cotton tissue from a drawer and says: "This is the gem of our collections: the fossil of a bird that lived 125 million years ago!" Then, pointing at a tiny mound, he explains: "Look, this is the claw and that is the head. It was in the egg shell and ready to hatch ... The species fell into a family of waterside inhabitants." 相似文献
15.
A joint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology his co-workers from Norway US Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells suggesting that China's projected climate warming could decrease the pest's numbers. The study was published in Proceedings of the National Academy of Sciences on September .…… 《中国科学院院刊(英文版)》2008,22(1):6-7
Ajoint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology and his co-workers from Norway, US and Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells, suggesting that China＇s projected climate warming could decrease the pest＇s numbers. The study was published in Proceedings of theNational Academy of Sciences on 17 September, 2007. 相似文献
16.
Caroline Haythornthwaite 《The Information Society》2001,17(3):211-226
A computer-mediated group is a complex entity whose members exchange many types of information via multiple means of communication in pursuit of goals specific to their environment. Over time, they coordinate technical features of media with locally enacted use to achieve a viable working arrangement. To explore this complex interaction, a case study is presented of the social networks of interactions and media use among members of a class of computer-supported distance learners. Results show how group structures associated with project teams dominated who communicated with whom, about what, and via which media over the term, and how media came to occupy their own communication niches: Webboard for diffuse class-wide communication; Internet Relay Chat more to named others but still for general communication across the class; and e-mail primarily for intrateam communication. Face-to-face interaction, occurring only during a short on-campus session, appears to have had a catalytic effect on social and emotional exchanges. Results suggest the need to structure exchanges to balance class-wide sharing of ideas with subgroup interactions that facilitate project completion, and to provide media that support these two modes of interaction. 相似文献
17.
Active biological molecules functional structures can be fabricated into a bio-mimetic system by using molecular assembly method. Such materials can be used for the drug delivery disease diagnosis therapy new nanodevice construction.…… 《中国科学院院刊(英文版)》2008,22(1):22-22
Active biological molecules and functional structures can be fabricated into a bio-mimetic system by using molecular assembly method. Such materials can be used for the drug delivery, disease diagnosis and therapy, and new nanodevice construction. 相似文献
18.
Electronic data interchange (EDI) provides means for interorganizational communication, creates network externalities, requires an advanced information technology (IT) infrastructure, and relies on standards. In the diffusion of such innovations, institutional involvement is imperative. Such institutions contain governmental agencies, national and global standardization organizations, local government, and nonprofit private organizations like industry associations. The last type of organizations we call intermediating institutions. They intermediate or coordinate ("inscribe") the activities of a group of would-be adopters. Unfortunately, little is known of how these organizations shape the EDI diffusion trajectory. In this article we examine one specific type of intermediating organizations?industry associations?and how they advanced the EDI diffusion process in the grocery sectors of Hong Kong, Denmark and Finland. We identify six institutional measures, placed into a matrix formed by the mode of involvement (influence vs. regulation) and the type of diffusion force (supply push vs. demand pull), that can be mobilized to further the EDI diffusion. Industry associations were found to be active users of all these measures to varying degrees. Their role was critical especially in knowledge building, knowledge deployment, and standard setting. Furthermore, institutional involvement varied due to policy and cultural contingencies and power dependencies. 相似文献
19.
Leah A. Lievrouw 《The Information Society》2000,16(2):155-159
This essay focuses on universal service and the Internet as means to support social and political participation. The emphasis on access to telecommunications systems in conventional approaches to universal service is contrasted with access to content. A model of the information environment is described that accounts for the roles of content and conduit, both of which are necessary conditions to achieve true access. A method is outlined for employing information indicators to observe or measure the information environment. 相似文献
20.
Puay Tang 《The Information Society》1998,14(1):19-31
The increasing prospects of digital piracy has prompted the perceived need by electronic publishers to adopt technical systems of protection, and governments to reform their copyright laws. This article is a preliminary study of the management of intellectual property by electronic publishers, defined as those involved in the production of online databases, and CD-ROMs. It focuses on three main issues: (1) how electronic publishers view the increasing threat of piracy; (2) the methods of protection employed to protect intellectual property in digital format; and (3) the importance of technological protection of intellectual property in electronic publications. The analysis is based on a sample of 23 UK electronic publishers. The interviews revealed an interesting assortment of protection methods and did not show that technological protection was a preferred way. Instead, the means of protection, in addition to copyright law, comprised niche markets, pricing, trust, bad publicity, and nontechnical and technical means. 相似文献