无线传感器网络中覆盖性问题的研究

无线传感器网络由大量的具有低能量,短寿命并且不可靠的传感器节点组成,因此在设计无线传感器网络时一个主要的目标在于保证足够的覆盖率以及能量可靠性的前提下可以延长网络的寿命。本文介绍了几种减少能量消耗以延长网络寿命的节点调度方法,并比较了各种方法的优缺点,指出其应用环境和需要进一步研究的工作。最后在这几种算法的基础上提出了一种新的算法。     

基于校园网的三层结构网络教学平台构建

网络教学平台是实现网络教学的基础。传统的两层结构应用模式具有一定的局限性,采用Web数据库技术和动态网页设计技术构建基于校园网的三层结构网络教学平台,能有效的解决网络传输流量等方面的问题,能更好的在校园网上实现教学资源的共享,提高网络教学的质量。     

Collapsing the Boundaries? Fatherhood,Organization and Home‐Working

In the modern western world, the discursive construction of fatherhood and everyday fathering practices has been underpinned by the spatial separation of work from home, of public from private. However, increasing numbers of employees are now working from home and a disproportionate number of these are men with young children. This article draws on new empirical research to examine the implications for fathers and for organizations as home‐working disrupts earlier spatial configurations of fatherhood and fathering practices. The article concludes that as the spatial boundaries between home and work collapse, new accommodations between fatherhood/fathering and organization are emerging. However, these are underpinned by a traditional gender division of labour in the household. More broadly, these findings confirm the inadequacy of static distinctions between public and private, showing that while such distinctions are still used to mark space and time, this is relational, contingent and unstable.     

蒂布特模型启迪下的可流动公共产品供给

中国目前正处于城乡公共产品统筹供给的关键时期,研究符合中国国情的公共产品供给理论具有重要意义。蒂布特模型是关于公共产品供给机制的理论研究,其政策含义是政府要采取促进居民流动的方式来提高公共产品的配置效率。由于该模型所作假设的现实性较弱,其结论和应用有一定局限性。根据流动程度,可以把公共产品划分为可流动公共产品和不可流动公共产品两类,可以通过可流动公共产品的流动来提高公共产品的配置效率。中国目前在城乡可流动公共产品优化配置方面有较大发展空间。     

转型期民间投资及其法律规制的制度逻辑--一个关于中国经济法现实运作基础的经验考察

本文立足于已持续二十多年的中国市场化取向的渐进改革,借助发生在甘肃省古浪县时间跨度超过15年的农村"机井"投资纠纷司法个案,对其中牵涉到的农业生产基本设施(机井),及其所引发的公有产权(特别是集体产权)与私人产权之间因"产权交易"而展开的"博弈"的具体分析,揭示了中国社会经济转型期民间投资的真实和普遍语境--即始终存在于同公有产权和国家权力相互碰撞和纠缠的夹缝中.在此基础上,通过反思现有法学研究及司法审判在方法和思路方面的缺憾,对转型期民间投资法律规制的制度逻辑进行了探讨,并结合其他领域的民闻投资实践,对转型期中国经济法存在和发挥作用的现实基础进行了思考.     

一种基于神经网络和决策树的信用评估新方法

分析了数据挖掘在国内外金融领域的应用及研究现状,提出了一种基于神经网络和决策树相结合的信用评估新方法。该方法通过RBF神经网络,进行条件属性裁减,并利用决策树抽取出评估规则。此方法利用神经网络的“黑箱”工作特性,选择重要条件属性,并利用决策树自动生成评估规则,大大提高了信用评估的效率和客观性。     

电子商务经营模式的演化与创新

经营模式是一个公司赖以生存的经营方法,企业通过它在价值链中的位置来赚钱。电子商务经营模式是企业开展电子商务的方式,企业通过这种方式持续经营并获得利润。它经历了一个不断演化的过程,内容涉及企业的战略、结构、流程和技术。目前,电子商务经营模式正从产品创新、客户关系、基础设施、财务管理等方面进行创新。     

关于网络环境下高校图书馆馆员素质新要求的思考

随着以计算机为中心的网络技术以及多媒体技术的突破,网络更加贴近人们的生活。原来分离独立的传统图书馆正走向全球一体化、网络化的新境地。在这一转变过程中,作为高校图书馆员必须是一支高素质的人才队伍,为图书馆的可持续发展积蓄力量!     

公共部门信用管理:理论与实践

在公共管理中,公共部门信用是一种重要的资源,需要合理地开发和利用,加强管理.该文尝试提出公共部门信用管理这一概念,并且对公共部门信用管理的主要特征和效果体现进行初步的探讨:公共部门信用管理相对于私人部门信用管理,具有本质的公共性、主体的广泛性和内容的多样性特点;公共部门信用管理的效果,透过公共政策信用、公共服务的契约信用和公共管理的规则信用体现出来;公共部门应该通过倡导公共部门信用意识和意愿、提高公共部门信用能力、加强公共部门行为过程约束和强化、对公共部门行为效果的信用责任追究等来实施信用管理.     

Television and Violence in the Economy of Memory

The present paper aims to consider the cultural function of television as a technology for the creation of a public memory. The television system records past images, preserves them, and broadcasts various historical programs. A viewer owns the public memory jointly, through watching/consuming programs. However, the process of production and consumption of programs is linked with the exclusion of other historical memories from the public space. After all, the creation of public memories in depth is related to social power. Through the analysis in concrete terms of a series of programs of Project X and the second episode of the Nippon Hoso Kyokai (NHK; Japan Broadcasting Corporation) series, Special Edition: Judging War, the relationship between the organization of public memories and social power is explored. Project X depicts the challenges of engineers of middle standing who initiated new industrial and technological developments in the 1960s and 1970s. Special Edition: Judging War is based on coverage of the Women's International War Crimes Tribunal on Japan's Military Sexual Slavery. This program was subjected to revision on the eve of its broadcast. What forms of expression were eliminated? These two programs should help us define more clearly what the Japanese media selects for incorporation into the public memory.