基于IEC 61850标准的过程层测控终端的设计     

余长庚  赖丽萍 《梧州学院学报》2013,(3):1-7

由于数字化变电站系统设计是基于IEC61850标准,即系统具有较好的开放性、互操作性和扩展性特征,表明变电站系统向自动化的方向发展。该文对数字化变电站IEC61850进行了详细介绍和分析。针对目前变电站的数字化改造的实际需要,提出了过程层测控终端的软硬件具体设计方案,该方案对于未改造的变电站进行数字化改造来说,在理论和经济方面具有重要的指导意义。  相似文献   

Internet Connectedness and its Social Origins: An Ecological Approach to Postaccess Digital Divides     

Joo-Young Jung 《Communication Studies》2013,64(4):322-339

This study examines the influence of sociocultural factors on the level of “Internet connectedness.” The Internet Connectedness Index (ICI), composed of five items, is modified and applied to measure disparities in the ways in which people use the Internet. With a dataset of 384 randomly selected telephone survey respondents, the ICI is regressed on various social indicators. The result indicates that technological environments, social environments, and the scope and intensity of Internet-related goals significantly influence individuals' Internet connectedness. This finding highlights that even after people gain access to the Internet, the ways they incorporate the Internet into their everyday lives differ, and that the differences reflect disparities in the multiple dimensions of the social context in which individuals are situated.  相似文献   

Use of digital resources by the scientists of Central Drug Research Institute (CDRI), India: A survey     

Abdul Mannan Khan  Atika Khursheed 《International Information and Library Review》2013,45(1-2):77-82

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Adoption and use of computer technology among school principals in Botswana secondary schools     

Angelina Totolo 《International Information and Library Review》2013,45(2):70-78

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数字图书馆理论研究与实践探索的先行者与引领者——张晓林教授学术研究概述     

宋惠兰 《高校图书馆工作》2013,33(3):3-8

通过资料研究的方法,结合国家科学图书馆管理与发展实例,对张晓林教授的颠覆数字图书馆视野、数字图书馆管理思想、服务理念,以及嵌入式个性化知识服务、科技信息开放获取等创新思维进行了较为详细的概述。  相似文献   

基于双向数字电视网络的数字图书馆服务系统     

赵宁 《高校图书馆工作》2013,33(3):77-79

近年来,数字电视技术迅猛发展,它不仅是一种收看方式,更是一种全新的生活方式的平台。数字电视技术作为数字图书馆拓展服务的新手段,将推动数字图书馆服务的全面发展。数字电视的发展趋势,说明了数字电视的传输网络的高带宽和服务互动性的优势,基于双向HFC数字电视网络的数字图书馆服务系统框架,可以实现数字资源阅读点播服务和远程教育讲座等功能,这些服务具有直观、易于接受和互动的特点。  相似文献   

CADAL项目在西安交通大学数字图书馆建设中应用实践     

马选利  魏青山 《晋图学刊》2013,(6):22-24

西安交通大学通过参与建设CADAL项目,利用CADAL数字资源结合图书馆其他系统建立了西安交通大学数字图书馆系统。文章通过系统建设实践,分析CADAL项目在组建数字图书馆过程中的不足考虑,提出通过开放数据接口、免费开放资源、增加流媒体文献数量提高CADAL数字资源使用量。  相似文献   

Police Media: The Governance of Territory,Speed, and Communication     

Joshua Reeves  Jeremy Packer 《传播与批判/文化研究》2013,10(4):359-384

The work of the modern police apparatus is highly dependent upon media technologies. This article traces crucial developments in this history, analyzing the central role that media have played in policing practices since the advent of the modern patrol in the late eighteenth century. We trace how the governmentalized police force has used media to govern efficiently what Foucault calls the three great variables: territory, speed, and communication. In conclusion, we consider the possibilities for resistance in a time when digital police media have given rise to alarming strategies for surveilling populations, stifling dissent, and exerting control over public and private space.  相似文献   

A Pressure Chamber of Innovation: Google Fiber and Flexible Capital     

Robert Mejia 《传播与批判/文化研究》2013,10(3):289-308

On March 17, 2010, the United States Federal Communications Commission identified broadband as “the great infrastructure challenge of the early twenty-first century.” One month earlier, on February 10, 2010, in anticipation of the FCC's announcement, Google announced its intent to build ultra-high-speed broadband networks across the United States to serve as a model for overcoming this challenge. Since then, Google Fiber, as it is called, has succeeded in being recognized as a model for other communities interested in establishing ultra-high-speed broadband infrastructure. This article serves as an analysis of the political economic consequences of this particular configuration of broadband infrastructure, and argues that Google Fiber operates as a mechanism of flexible capital whereby the emphases on short- over long-term relationships, meritocracy over craftsmanship, and the devaluation of past experience in favor of potential outcomes are embedded in the institutional and technical infrastructure of ultra-high-speed Internet.  相似文献   

Governance through Philitainment: Playing the Benevolent Subject     

Ergin Bulut  Robert Mejia  Cameron McCarthy 《传播与批判/文化研究》2013,10(4):342-361

This article analyzes Free Rice within the context of “the rise of the ludic sublime,” where video games are hailed as the solution to highly sophisticated political problems. As part of what we call practices of “philitainment,” Free Rice, we argue, functions within the political domain of what Jodi Dean has termed “communicative capitalism” and therefore both captures resistance and actually solidifies global capitalism. Ultimately, this case study of Free Rice reveals ways in which practices of philitainment signal the proliferation of a convergence between the technological sublime and neoliberal politics through which the disinvestment of the state from social problems is legitimized and reproduced through a reconfiguration of citizenship in terms of techno-consumerism.  相似文献