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科学网关中远程计算服务机制的研究
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作者 杨瑞敏 蒋静 +1 位作者 张灿 孙杰 《青岛大学学报(自然科学版)》 CAS 2014年第2期34-38,共5页
科学网关是支持交互的基于Web的科学、教育和协作的工具。在科学网关中用户如何能够方便地使用分布在世界各地的高性能计算资源是分布式计算领域的重要问题。据此提出了一种远程计算服务机制,并将该机制应用于一个基于OGSA的科学网关系... 科学网关是支持交互的基于Web的科学、教育和协作的工具。在科学网关中用户如何能够方便地使用分布在世界各地的高性能计算资源是分布式计算领域的重要问题。据此提出了一种远程计算服务机制,并将该机制应用于一个基于OGSA的科学网关系统中。通过MATLAB软件,证明了该系统可以使用户建立、发起和处理图形计算仿真。为科学网关中的远程计算提供了新的设计思想和实现方法。 展开更多
关键词 远程计算 服务组件 科学网关 网格 MATLAB
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美国TeraGrid科学网关特点简析及经验启示
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作者 陈明奇 刘阳 +1 位作者 邓勇 唐川 《科研信息化技术与应用》 2011年第2期90-96,共7页
高性能计算和网格计算面临的一个挑战就是应用门槛过高。2005年美国国家科学基金会启动了TeraGrid科学网关项目,帮助用户使用科学计算网格TeraGrid,取得了良好成效。2010年8月,美国国防部高性能计算中心也计划建设高性能计算门户网站以... 高性能计算和网格计算面临的一个挑战就是应用门槛过高。2005年美国国家科学基金会启动了TeraGrid科学网关项目,帮助用户使用科学计算网格TeraGrid,取得了良好成效。2010年8月,美国国防部高性能计算中心也计划建设高性能计算门户网站以帮助用户更好地使用高性能计算资源。类似TeraGrid科学网关的计算服务模式将成为一种潮流。本文分析了美国TeraGrid科学网关的特点和建设经验,为我国推进高性能计算提供了经验参考。 展开更多
关键词 高性能计算 TeraGrid 科学网关
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Ethics of Information Technologies in Knowledge Society
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作者 Jacob Dahl Rendtorff 《Journalism and Mass Communication》 2016年第4期213-220,共8页
How should we define the ethics of information technology? It is not a new field of study in the sense that it requires an entirely new ethical thinking. Rather, it is a field where we can try to use our traditional ... How should we define the ethics of information technology? It is not a new field of study in the sense that it requires an entirely new ethical thinking. Rather, it is a field where we can try to use our traditional philosophical notions and apply them to this field of computer technology, information science, and knowledge society in order to define responsibility and accountability. Although relations of causalities may be blurred and complex because of the auto-poetic development of computers and information systems we may still have to face the fact that human beings are fundamentally responsible behind the responsibilities of the computers. So we can say that the concept of reliability and accountability is related to human responsibility in the field of Internet technology. Indeed, issues of hacking, viruses and intervention in computers also pose the problems of responsibility and violation of property and copyrights and here we face similar issues as when we talk about physical property rights although what happens is going on in cyberspace. Also we face fundamental problems about transparency, power and democracy of society as the result of the information revolution in knowledge. This shows how it becomes more and more difficult for governments and organizations to hide information and that information is becoming more and more public. We can also talk about the present development as a technology-driven information revolution in knowledge society. The information overload is a result of this revolution that is expressed in the Internet and that changes the relation of human beings to society where human beings need to access information technology and tools in order to be able to live and work in society. 展开更多
关键词 ETHICS information technologies COMMUNICATION knowlegde SOCIETY social responsibility businessethics
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