云计算给图书馆管理带来挑战

与云计算相关的网络技术或服务,已经应用到了图书馆中。云计算将给图书馆带来巨大好处,也将给图书馆管理带来挑战。图书馆面临的管理方面的挑战包括:可替代性问题,标准问题,数据安全和保密问题,知识产权问题。为应对这些挑战,图书馆学理论界应当研究:云计算的基础理论问题,云计算在图书馆应用的可行性,图书馆云计算政策、标准与协议,基于云计算的图书馆管理体制,云计算案例。     

基于云计算的数字档案馆建设研究

本文在阐明云计算概念和关于云计算近期研究的基础上,论述了云计算在数字档案馆中的应用优势,提出了基于云计算的高校数字档案馆建设模型。针对云计算技术应用过程中出现的问题,提出了解决问题的对策。     

广东方言教学资源网格平台的设计与开发

文章分析方言教学资源的建设和应用现状,提出建立广东方言教学资源元数据规范,探讨基于语义网格的广东方言教学资源网络平台的新模式,以更好地实现对方言教学资源数据的采集、监测和分析,为方言资源的再度开发和利用提供广泛的基础平台。     

Computing and STEM in Greek tertiary education: gender representation of faculty members during the decade 2003–2013

This study focuses on the investigation of gender representation of faculty members of all ranks (professors, associate professors, assistant professors and lecturers) of Computing and STEM (Science, Technology, Engineering and Mathematics) in Greek tertiary education during the decade 2003–2013. To this end, a quantitative study was conducted, taking into account appropriate data derived from the Hellenic Statistical Authority. The data analysis shows that during the said decade, (a) faculty members in Computing and in each discipline of STEM constituted a small part of the total number of Greek faculty members; (b) for every single year of the decade, females were less prevalent than males in all ranks of faculty members in Computing and Engineering; (c) the situation for females in the Computing faculty appears to have been even worse, as the percentage of them in every rank was the lowest among the STEM disciplines studied for all or most of the years of the decade under study; and (d) although females were better represented in the position of lecturer, which constituted the fewest faculty members in the aforementioned disciplines, highly populated ranks of faculty members were dominated by males.     

开放教育中基于语义网格的网上学习平台

开放教育中教学资源数量大,课程文档、视频、试题库、课件资源和老师信息等教学资源分散在不同的地方。资源具有分布性、动态性、异构性等特征使得资源的分配和调度变得相当复杂。文章介绍了基于语义网格技术的网上学习平台,并给出基于语义的分布式基础结构,以达到网上学习数据资源的共享目的。通过可用技术的整合,尤其使用语义网格、协作工具、个性化和知识管理技术,来改进一个点对点的网上学习基础结构。     

最小支撑树的DNA凝胶电泳算法

DNA计算是解决困难问题的一种很重要的方法。应用DNA计算解决图论中的最小支撑树问题。利用DNA的热力学特性,根据边的权长不同,给它们设计不同溶解温度的DNA链。根据温度的不同,电泳时DNA分子的形状不同,电泳的速度也不同,从而根据电泳速度分离出最小支撑树的所有边。在这里给出了5个顶点的赋权图为例来求它的最小支撑树,说明了该方法的简便性。     

Improving K-12 pedagogy via a Cloud designed for education

Cloud computing offers an opportunity to improve K-12 pedagogy with services tailored to teachers’ needs in individual classrooms. The Cloud can deliver services such as remote access to learning tools in a cost effective manner to school systems struggling with reductions in local and state funding. This article explores the distinct ways that a Cloud designed specifically for education can be applied to K-12 education's academic mission. It uses observations from a case study in North Carolina rural high schools using an educational Cloud called the Virtual Computing Lab to access dynamic geometry and algebra software.     

互联网的第三次浪潮——网格

本文简要介绍了下一代互联网——网格的发展现状、特点及主要技术规范。     

网格系统资源组织与管理研究综述

同传统的分布式计算环境(DistributedComputingEnvironment,DCE)相比,网格系统的资源组织与管理具有更大的挑战性。本文分析和讨论了目前网格系统中资源组织与管理方面的若干重要的研究问题及其研究现状。     

关于不可逆矩阵特征值的计算

计算矩阵特征值的常规方法就是求其相应的特征多项式的根.然而,当矩阵的特征多项式次数超过5次时,其根的求解没有公式可循,因而计算相当困难.为此,通过讨论不可逆矩阵特征多项式的结构问题,从而得到其特征值计算的一种便捷方法.