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下一代网络将是基于软交换系统的通信网络。在研究各种软交换系统互联机制的基础之上,结合软交换基于IP网络构建、信令与媒体分离等特点提出了基于软交换系统的下一代网络中可以采用的各种组网结构,比较了各种方式的优缺点,指明了其适用范围。最后给出了现有通信网向下一代通信网络演进过程中网络体系结构的演进方案。 相似文献
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网络产业的市场结构重组、民营化与网络瓶颈 总被引:4,自引:0,他引:4
在传统体制下,电信、电力、铁路运输、管道燃气、自来水等网络产业基本上是由国有企业垄断经营的。因此,以促进竞争为导向的市场结构重组与民营化是这些网络产业改革的两大主题。但网络产业的改革必然凸现网络瓶颈,这要求政府制定与实施有效的接入管制政策。 相似文献
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复杂网络理论在物流网络研究中的应用 总被引:2,自引:0,他引:2
近年来,随着复杂性理论、复杂网络理论及物流网络理论的蓬勃发展,物流网络研究已经成为供应链管理领域一个新的研究热点.在复杂多变的环境下,物流网络的复杂性、非线性、多模块特征日益彰显,物流网络与复杂网络具有共同的行为模式,可将复杂网络的理论和思想应用于物流网络研究,利用复杂网络理论建立物流网络表示方法与分析手段之间相互联系的桥梁,考察局部互动关系及程度与物流网络鲁棒性和适应性之间的关系,分析物流网络的内部协调机制以及局部互动与全局演化之间的关系. 相似文献
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Xiangfeng Luo Huimin Liu Junyu Xuan 《Journal of Organizational Computing & Electronic Commerce》2014,24(2-3):215-235
The websites-based social network, as a social media, provides and shares abundant information via organizing users’ content and contacts, whereby users’ activities in the real world can be imaged to the websites. However, users’ content and contacts in real-world social networks cannot be detected easily. Herein, we construct a website interaction network to reflect the online social network, based on mapping relationships among websites, webpages, and attributes of a social event. This network reflects the social association relationships between websites of an event, which can be mapped to the users’ relationships in the real-world social network. In this article, we study the structural features of a website interaction network and, then, mapping of these features to the real-world social network. Further, we discuss implications for human behaviors, human relationships, and structure of human society. Experimental results show that the website interaction networks concerning popular social events have power-law scaling in degree distribution and exhibit small-world properties. 相似文献
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赵晓辉 《中国对外贸易(英文版)》2011,(8)
会计电算化是电子计算机技术、信息技术和现代会计技术相结合的产物,是会计工作发展的方向.会计人员记账、算账、填制会计报表,甚至分析各种报表数据,都离不开计算机.随着网络和电子商务的发展,会计信息的安全问题越来越突出,本文先对隐患存在进行了分析,然后提出了有效的防范措施. 相似文献
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Sheila Kurowska 《International Journal of Consumer Studies》2003,27(3):229-229
The Welsh Consumer Council launched its online interactive consumer network in July 2001 with the aim of linking up individual consumers across the country, stimulating discussion and debate on consumer issues and strengthening the voice of consumers in Wales. By October 2002, the network had recruited 300 members. The Council aims to reach a membership of 1000 by 2004. As well as individual consumers, the network has recruited 34 voluntary and community organisations that are committed to working with the Council to ensure that disadvantaged consumers without home Internet access can participate in the network At the heart of the network is a bilingual discussion area within the Council's one‐stop consumer information website where members can post their views, comments and observations on any consumer issue that concerns them. Over the past year, lively discussions have developed on subjects as diverse as IT and electronic communications, customer call centres, recycling, money‐making schemes and energy saving in the home. Early in 2002, the network began to run regular online surveys on topical consumer issues. The first survey asked about members’ experiences of returning goods and their knowledge of consumer rights. The second asked about members’ attitudes to recycling and reducing waste. Both surveys received a high level of response and provided valuable and up to date information on the experiences and views of consumers from all parts of Wales on these important issues. The continuing expansion of the consumer network is central to the Council work in helping to foster a consumer movement in Wales which is informed, responsible, demanding and assertive. 相似文献
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《Journal of Promotion Management》2013,19(1):73-79
Abstract Currently seen in 70 million U.S. homes and 145 countries around the world, Cartoon Network is Turner Broadcasting System, Inc.'s 24-hour, ad-supported cable service offering animated entertainment. Since its launch in 1992, Cartoon Network has remained one of cable's highest-rated offerings. Drawing from the world's largest cartoon library, Cartoon Network also showcases a number of unique and award-winning original ventures. This article, which can form the basis for a strategies and tactics discussion in a university-level course in advertising or marketing, chronicles the use of advertising specialties in the introduction of the Cartoon Network to cable operators. 相似文献