基于大数据的电能质量监测分析系统设计与实现

为解决传统电能质量监测系统数据接入可靠性不高,海量数据存储和统计分析能力不足的缺点,采用类数据库的事务处理机制设计数据调度采集过程,搭建基于 Cloudera 大数据平台的电能质量监测分析系统,对数据进行分布式存储、计算分析,实现对 TB 级电能质量数据的监测点指标与运行状态统计,以及对暂态事件的统计聚合分析等功能。实验证明该系统可靠、海量数据统计处理能力强,提高了数据存储可拓展性,为供电方提供了解决海量电能质量数据存储与分析的有效方案。     

高校公共机房维护策略

高校公共机房承担着全校计算机课程的实践教学任务,机房正常运行是保障教学正常进行的前提。从技术与管理两个方面提出了维护高校公共机房的策略。     

Book reviews

Myocybernetic control models of skeletal muscle: characteristics and applications, H. Hatze, University of South Africa Press, Pretoria, 1981. xi+221 pp, ISBN 0 86981 216 5

Psychology of motor learning, (2nd edition) J.B. Oxendine, Prentice‐Hall, Inc., New Jersey, 1984. 403 pp, £26.75 (hb), ISBN 0 13 736603 5

Exercise, health and medicine, Symposium Procedings, Sports Council, London, 1984. 66 pp, £4.00 (pb), ISBN 0 906577 42 X

Human motor actions: Bernstein reassessed, H.T.A. Whiting (ed.), North Holland, Amsterdam, 1984. xxxv+559 pp, £40.00 (hb), ISBN 0 4444 868135

Sporting body sporting mind, John Syer and Christopher Connolly, Cambridge University Press, 1984. 160 pp, £3.95 (pb), ISBN 0 521 26935 0

Exercise physiology: human bioenergetics and its applications, George A. Brooks and Thomas D. Fahey, John Wiley & Sons, UK, 1984. xxiv + 810 pp, £30 (hb) ISBN 0 471 88827 3     

析《中图法》第五版TP类的修订

将《中图法》第五版TP类的修订与第四版进行比较,认为第五版通过调整类目体系、规范类名、细分类目、更新术语、改进注释、停用过时类目等技术手段,实现了对类目的深度控制.通过实例分析了《中图法》第五版TP类的修订内容,指出修订后的TP类在类目设置、类目结构上仍存在的一些问题,并提出修改建议.     

高职计算机专业动态课程评价系统的探析

以高职院校计算机专业为背景,研究课程编制计划、实施过程及最终实施效果等环节的价值判断.针对当前高职院校课程评价片面或失真的现状,围绕课程评价的三个关键要素即谁来评、评什么和怎么评,构建内容全面的动态课程评价系统,提出可行的策略方案并在计算机专业实际应用,以实现教育价值增值的目的.实践证明,该动态评价系统对所在学校的计算机专业课程改革起到了积极的推进作用.     

项目教学法在“计算机组装与维护”课程中的应用研究

针对"计算机组装与维护"课程教学中的维护技能训练的不足,引入项目教学法,将教学流程与实际工作流程结合起来,通过教学实例介绍了项目教学法在"计算机组装与维护"课程教学中的应用。     

基于计算机视觉的船模位置跟踪

针对水池实验室中船模位置的跟踪问题,提出计算机视觉跟踪的方法.首先对视频图像进行逆透视投影矫正,然后利用CamShift算法实时跟踪船模在图像中的重心位置,最后将船模的图像坐标换算成实际空间坐标,实现船模位置的精确跟踪.该方法具有系统工作稳定性高,安装简单方便,跟踪精度高、效果较好等特点,同时还可利用跟踪得到的位置坐标,计算出船模的航速和航迹向,以实现这两个状态参数的跟踪,为实时跟踪船模等课题研究打下基础.     

基于神经网络的图像水印技术研究

随着科技信息的不断进步,数字多媒体信息在人们的日常生活应用越来越广泛,随之而来的信息安全问题也逐步受到人们的重视.在数字传输过程中,传统的加密系统很容易被解密,丧失保护作用.现阶段,图像水印技术逐步被研究者提出,并发挥了广泛作用.结合图像水印技术和神经网络的发展以及现状,针对基于神经网络的图像水印技术进行研究分析.     

计算机技术对现代体育发展的影响

从三个部分论述计算机技术对现代体育发展的影响,得出计算机技术的不断进步必将会推动现代体育各方面更加迅速发展的结论。     

Telematics and development

Abstract

Developed countries are rapidly evolving into information economies, and given the increasing internationalization of trade and interdependence, developing countries will also have to become information economies if they are to achieve higher economic growth rates. The essence of the information economy is that information is now the main capital input into manufacturing industry and as such is the key input to economic development. The activities of enquiring, communicating, evaluating, and deciding have become the activities absorbing the major proportion of national resources, with the need to know of the business decision‐maker as the main driving force. In developed information economies, industrial firms have become learning systems and a new division of labor in the economic productive system has evolved. The government‐controlled primary information sector is the source of much of the information input and the provider of the means of information transfer. Developing countries must develop their own primary information sectors as an integrated part of the agricultural and manufacturing sectors. The problems of developing countries are highlighted in the isolation on the one hand of their information generating sectors from the productive sector and on the other of the native small firm sector from all sectors of information. Telematics, as the integration of computing, communication, and information services offers the means to integrate national resources with international and supply the required inputs to local agricultural and industrial development.