数字图书馆网络存储模式评析     

徐迈 《图书馆学研究》2006,(9):25-27

本文介绍了目前主要的存储体系结构，分析了各种体系结构的主要特点和适用环境，并对数字图书馆的存储发展趋势作了一些探讨。  相似文献   

江苏省高校图书馆网络数据库资源现状调查分析   总被引：7，自引：0，他引：7  

张艳 《现代图书情报技术》2004,20(11):43-45

通过对江苏省高校图书馆网络数据库资源分布、种类等的调查和统计，说明了江苏省高校图书馆网络数据库资源的现状、存在的问题，并对江苏省高校图书馆今后网络数据库资源建设提出了有关建议。  相似文献   

Pathways of Immigrant Political Socialization: Examining the Role of News Media,Social Connections,and Community Interaction     

Wenlin Liu  John Gastil 《Journal of Intercultural Communication Research》2014,43(3):238-263

Going beyond the traditional socioeconomic status model of political participation, this study examines pathways that lead to the sociopolitical incorporation of immigrants in the USA, with a focus on the role of communication socialization agents. Using a Current Population Survey sample of 7,626 first-generation immigrants in the USA, results show that communication socialization agents significantly contribute to immigrants’ political socialization, and an important mediating path translates political learning into greater political engagement. Results also identify ethnic differences in how socialization variables affect immigrants’ socialization.  相似文献   

Intercultural contacts and acculturation resources among International students in Australia: A mixed-methods study     

《Int J Intercult Relat》2020

This paper explores the impact of acculturation conditions, orientations and outcomes on international students in Australia’s tertiary education sector. Specifically, we investigate the factors that facilitate or hinder acculturation of international students within a multidimensional acculturation context (Arends-Tóth & van de Vijver, 2006). We used a sequential exploratory mixed-methods design in two studies to investigate acculturation of international students at an Australian university and test how these factors are related to psychological and sociocultural outcomes. In Study 1, we conducted a generic qualitative study using semi-structured interviews with a conventional content analyses approach,which compared the experiences of international students who on average had high numbers of positive experiences versus those who had high numbers of negative experiences. We found that a support network of mixed-nationals, and especially host locals, facilitates positive psychological and sociocultural adjustment, and buffers acculturative stress. Study 2 quantitatively tested the association of factors found in Study 1 (perceived stereotypes, intercultural and ethnic network/resources) with psychological and sociocultural acculturation outcomes. Study 2, shows that perceived negative stereotypes loosen ties with the dominant (host) culture and reinforces ties with the ethnic (non-host) culture. The social resources associated with either culture was found to be useful for acculturation, with both independently contributing to participant well-being. Contact with host locals played a particularly crucial role in developing these resources. Our findings provide foundations for pragmatic policy implications, suggesting value in the development of formally organized contact programs in the early sojourn experience of international students.  相似文献   

社会网络视角下的企业知识网络研究     

李家清  张慧 《未来与发展》2010,31(1):84-88

知识经济时代，知识成为企业核心资源；知识的更新速度不断加快，而企业所拥有的知识存量有限，为保持竞争优势，知识网络已成为组织实现知识管理的有效实践工具和实践知识管理的主要平台。文章从社会网络视角入手，探讨了企业知识网络概念及内涵，分析了社会网络三大核心理论——强弱联结、社会资本、结构洞，论述了该理论对企业知识网络的影响，提出了构建企业知识网络交流平台的方法。  相似文献   

Header error control schemes for coping with upstream channel noise in the HFC network     

Chen Hui-fang  Xie Lei  Qiu Pei-liang 《浙江大学学报(A卷英文版)》2001,2(1):51-55

The Hybrid Fiber-Coax (HFC) network is being paid close attention to in recent years as a bi-directional broadband access network. To achieve seamless connection with the backbone network, and Asynchronous Transfer Mode (ATM) Network Network Interface (NNI) cell format is used as the basic transmission packet unit in the HFC system. As the transmission condition of the HFC system’s upstream channel is bad, two improved header error control (HEC) schemes, i. e. the improved HEC and the cell interleaving technique, are employed to guarantee the packet integrity. Theoretical analysis of the results showed that the improved HEC and the cell interleaving technique are applicable to isolated random errors and burst errors, respectively.  相似文献   

HEADER ERROR CONTROL SCHEMES FOR COPING WITH UPSTREAM CHANNEL NOISE IN THE HFC NETWORK     

陈惠芳  谢磊  仇佩亮 《Journal of Zhejiang University. Science. B》2001,(1)

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高技术企业创业的成功因素     

Prof. Dr. Michael Dowling 《科研管理》2004,25(Z1):106-111

通过对美国及德国的十多年研究表明,对于创新及合作网络的投资有利于促进高技术行业企业不断进步和发展.这些高技术行业包括电信、电脑设备及生物工艺的行业.研究表明政府政策在促进竞争及支持地区合作网络发展中起到了极其重要的作用.  相似文献   

入侵检测的原理及其在网络信息系统中的应用   总被引：2，自引：0，他引：2  

王琪 《情报科学》2004,22(10):1272-1276

为了实现网络信息系统的安全防护，解决防火墙技术所过滤不掉的那部分安全问题，就必须引入一种网络安全过滤机制的补偿技术．即入侵检测技术。本文阐述了入侵检测的基本原理和通用模型等，讨论研究了入侵检测系统在网络系统中应用和实施过程中需要注意的几个重要的问题并介绍和讨论了Honeynet结构模型．最后对入侵检测技术的发展中需要解决的问题作了总结。  相似文献   

全民教育政策转移中的国际非政府组织——以全球教育运动联盟为个案     

杨启光 《外国教育研究》2011,(11):1-6

随着全球化的发展,各国在教育领域开展愈加丰富的全球教育合作与交流,跨国间教育政策的转移扩散日益成为一种普遍的社会现象和行为。其中,国际非政府组织的一些跨国的行为者,在传播教育基本价值与规范、促进国际教育合作交流、融合与扩散国际教育政策等方面日益显示出重要的作用。在全民教育政策的跨国转移扩散发展进程中,非政府组织通过跨国倡议网络机制发挥着重要作用。以全球教育运动联盟为个案,考察全球教育运动网络、传播全民教育政策过程中倡议的基本理念与采取的主要集体行动策略,将有助于更好地理解非政府组织在国际教育政策转移方面发挥的重要作用。  相似文献