计算机网络安全策略简述

随着电子商务时代的到来 ,计算机网络的全局性安全得到广泛关注 .就计算机网络的安全策略作一简要的陈述 .     

The Florida Geographic Data Library: Lessons Learned and Workflows for Geospatial Data Management

The University of Florida GeoPlan Center has been organizing, standardizing, and distributing geospatial data since 1998 through the Florida Geographic Data Library (FGDL), a collection of Florida geospatial data from various agencies, as well as data developed in-house. With funding from the Florida Department of Transportation (FDOT), FGDL serves as a public distribution mechanism for hundreds of Florida geospatial data layers. Since 2004, FGDL layers have formed the data foundation for FDOT's interagency application known as efficient transportation decision making (ETDM), which facilitates the review and permitting process for proposed transportation projects. Data layers are standardized and inspected to ensure that the data are adequate for use in analysis and decision making. To efficiently manage the geospatial data and workflows, a quality assurance/quality control (QAQC) process and relational database schema was developed to track the standardization procedures, lineage, versioning, and archiving of the data layers. This article details the history of the Florida Geographic Data Library, challenges of managing a large geospatial data repository, development of a QAQC process and database schema, and lessons learned.     

单片机延时方法的分析及应用

单片机开发应用中经常用到延时控制，延时控制的基本方法有纯软件、纯硬件及软硬件结合方法，它们都有各自的特点及应用范围，以1秒延时为例给出用三种方法实现的过程，并介绍了软硬件结合延时的应用实例。     

应用PDM技术开发图纸管理软件

本文以首钢型材轧钢厂图纸管理软件为例，介绍了应用PDM技术开发图纸管理软件的方法。     

实践课程网上选课系统的设计与实现

以上海交通大学工程力训练中心实践课程为例，在介绍其设置体系的基础上，对实践课程网上选课系统的设计思想及其具体实施方法做了详细介绍，并对其中的关键性技术进行了分析。     

个体差异与计算机辅助语言教学的优势

介绍了计算机辅助语言教学的基本形式；同时以学习者的个体差异为着眼点，从学习者的认知、情感及社会性等方面论述了机辅语言教学的优势。肯定了机辅语言教学的优势，旨在为促进高校外语教学，培养满足社会需求的人才提供有益的建议。     

解析法在机构运动分析中的应用

解析法适用于精度机构的运动分析。只要将解析结果编程上机，就可完成计算机辅助分析和设计。随着计算机的日益普及，解析法日遂受到人们的重视。     

MICTS: Municipal ICT Schools – A Means for Bridging the Digital Divide Between Rural and Urban Communities

There is a substantial difference in use and development of information and communication technologies and services between and within countries. Some denote this phenomenon as the digital divide.This paper addresses the competence aspect of the digital divide. It proposes municipal ICT schools as one model aimed to bridge this gap and provides an assessment of the model based on the results from a field trial in three rural municipalities in Norway. The model brings the benefits of increased competence of ICT in the communities but in addition have a potential with regard to stimulating talent development, serving as a resource for local business and offering meeting places in the communities for building social capital. The model may be successfully implemented within reasonable economic limitations but is also challenging in several ways, for instance on how teaching resources are recruited and supported.The purpose of the paper is to bring forward the discussion about how to bring all people, also those in rural areas, to be participators in the information technology age.     

中心机房中央集中监控系统的设计

讨论了一种采用多媒体中央集中监控系统的设计思想。该系统可对中心机房的配电、UPS、空调、门禁、消防、保安、水循环等环境设备和设施实施完善的监测和控制,不失为合理和优秀的现代机房管理方案。     

浅谈青少年学生网络道德教育

互联网以飞快的速度发展，青少年学生是网络的主力军。网络在带给社会生活巨大变革的同时也对青少年的行为准则产生了巨大的冲击，不良的网络行为引发了道德失范。据此，章分析了存在于青少年身上的不良网络行为和网络道德危机，探讨了如何加强青少年网络道德教育。