浅谈云计算技术对图书馆建设的意义

以介绍云计算技术的相关概念为前提,结合云计算技术在图书馆中应用的必要性,引出其对现代数字图书馆发展的优势与存在问题,进而探讨了云计算技术对建设现代数字图书馆的积极意义。     

云计算环境下高校数字图书馆发展探索

在分析云计算内涵的基础上,研究高校数字图书馆发展历程;探索云计算在推动高校数字图书馆建设发展方面的应用,同时分析应用中存在的相关问题;提出了云计算对高校数字图书馆发展及提升图书馆整体服务水平的重要影响,为高校数字图书馆发展提供有益的参考。     

浅谈云计算在中小型图书馆中的应用

云计算作为一个迅速发展的信息技术已在国内外许多地区,中小型图书馆得以应用,云计算的出现对中小型图书馆的影响和机遇也值得我们关注和思考。本文介绍云计算基本原理和云计算发展概述的基础上,探讨了云计算技术在数字图书馆建设的影响,以及云计算技术用于中小图书馆需要关注的问题。     

云计算在数字图书馆中的应用与瓶颈问题

云计算技术作为一门新兴技术已经强势进入了图书馆领域,为图书馆的发展迎来了下一个春天。文章归纳了云计算在图书馆中的应用现状,并且从云计算的含义、特点、服务类型出发,讨论了云计算在数字图书馆中的主要应用,指出了数字图书馆应用云计算要考虑的一些瓶颈问题。     

基于虚拟化技术的数字图书馆分布式云计算数据中心研究

首先分析了虚拟化技术和云计算模式的发展趋势,然后探讨了云计算环境下数字图书馆的虚拟化建设,研究了数字图书馆虚拟化资源在云计算环境中的集成与共享机制,并对云计算环境下虚拟化数字图书馆的组织模式进行了探讨。     

基于云计算的数字图书馆功能优势研究

本文探讨了基于云计算的数字图书馆的功能的四大优势即技术优势、硬件建设优势、信息资源管理优势、用户服务优势。并对基于云计算的数字图书馆发展进行了展望。     

浅论云计算技术在数字图书馆中的应用

在介绍云计算概念、概括云计算技术特点,结合目前图书馆的现状的基础上,探讨云计算技术在数字图书馆建设中的应用中带来的机遇和出现的问题.     

区域云数字图书馆构建研究

在分析当前图书馆区域共享应用的基础上,提出了基于云计算技术与理念的软硬件平台共享的区域数字图书馆的建设思路和方法。简要介绍了云计算技术相关概念,指出了区域云数字图书馆的内涵与应用模式,重点阐述了一种基于云计算技术、面向服务和层次化的区域云图书馆体系结构,该体系结构总体上遵循区域云图书馆服务规范,确保系统安全和服务连续开展,具体包含用户层、接入层、应用门户层、应用层、支撑工具层、基础技术层、云资源层等。并对区域云数字图书馆的关键技术作了分析探讨。     

数字图书馆的云存储与云服务

目前数字图书馆的发展因为基础设施建设费用高、资源共享度低以及存储技术等问题而受到制约。云计算无法比拟的低成本以及超大规模等优势能有效解决这些问题。文章通过数字图书馆信息资源的云存储优势和云服务模型两个方面,阐述了云计算在数字图书馆中的应用。     

基于云计算的移动数字图书馆服务平台构建研究

云计算技术正成为研究的新热点,移动数字图书馆可以借助云计算这一先进信息技术,开展云移动服务。文章在简述云计算和移动数字图书馆概念的基础上,构建了一种基于云计算的移动数字图书馆服务平台,并对构建模式及平台构建面临的问题进行了探讨。云计算技术与移动数字图书馆相辅相成,二者的结合将会给用户带来完美的服务感受。     

Students' Reactions to the Introduction of Videoconferencing for Classroom Instruction

This study examined how students who had no prior experience with videoconferencing would react to the use of videoconferencing as an instructional medium. Students enrolled in seven different courses completed a questionnaire at the beginning of the semester and again at the end of the semester. Students at the origination and remote sites did not differ in their reactions toward videoconferencing but there was a significant difference for gender. Women reacted less favorably to videoconferencing. Compared to the beginning of the semester, students reported significantly less positive attitudes toward taking a course through videoconferencing at the end of the semester. There were no significant differences in students' attitudes toward videoconferencing across courses at the beginning of the semester but there were significant differences across the courses at the end of the semester. The results suggest the need for better preparation for both students and instructors.     

Cooler temperatures inductive to locust outbreaks

Ajoint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology and his co-workers from Norway, US and Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells, suggesting that China＇s projected climate warming could decrease the pest＇s numbers. The study was published in Proceedings of theNational Academy of Sciences on 17 September, 2007.     

Exploring Multiplexity: Social Network Structures in a Computer-Supported Distance Learning Class

A computer-mediated group is a complex entity whose members exchange many types of information via multiple means of communication in pursuit of goals specific to their environment. Over time, they coordinate technical features of media with locally enacted use to achieve a viable working arrangement. To explore this complex interaction, a case study is presented of the social networks of interactions and media use among members of a class of computer-supported distance learners. Results show how group structures associated with project teams dominated who communicated with whom, about what, and via which media over the term, and how media came to occupy their own communication niches: Webboard for diffuse class-wide communication; Internet Relay Chat more to named others but still for general communication across the class; and e-mail primarily for intrateam communication. Face-to-face interaction, occurring only during a short on-campus session, appears to have had a catalytic effect on social and emotional exchanges. Results suggest the need to structure exchanges to balance class-wide sharing of ideas with subgroup interactions that facilitate project completion, and to provide media that support these two modes of interaction.     

The Role of Intermediating Institutions in the Diffusion of Electronic Data Interchange (EDI): How Industry Associations Intervened in Denmark, Finland, and Hong Kong

Electronic data interchange (EDI) provides means for interorganizational communication, creates network externalities, requires an advanced information technology (IT) infrastructure, and relies on standards. In the diffusion of such innovations, institutional involvement is imperative. Such institutions contain governmental agencies, national and global standardization organizations, local government, and nonprofit private organizations like industry associations. The last type of organizations we call intermediating institutions. They intermediate or coordinate ("inscribe") the activities of a group of would-be adopters. Unfortunately, little is known of how these organizations shape the EDI diffusion trajectory. In this article we examine one specific type of intermediating organizations?industry associations?and how they advanced the EDI diffusion process in the grocery sectors of Hong Kong, Denmark and Finland. We identify six institutional measures, placed into a matrix formed by the mode of involvement (influence vs. regulation) and the type of diffusion force (supply push vs. demand pull), that can be mobilized to further the EDI diffusion. Industry associations were found to be active users of all these measures to varying degrees. Their role was critical especially in knowledge building, knowledge deployment, and standard setting. Furthermore, institutional involvement varied due to policy and cultural contingencies and power dependencies.     

How Electronic Publishers are Protecting Against Piracy: Doubts About Technical Systems of Protection

The increasing prospects of digital piracy has prompted the perceived need by electronic publishers to adopt technical systems of protection, and governments to reform their copyright laws. This article is a preliminary study of the management of intellectual property by electronic publishers, defined as those involved in the production of online databases, and CD-ROMs. It focuses on three main issues: (1) how electronic publishers view the increasing threat of piracy; (2) the methods of protection employed to protect intellectual property in digital format; and (3) the importance of technological protection of intellectual property in electronic publications. The analysis is based on a sample of 23 UK electronic publishers. The interviews revealed an interesting assortment of protection methods and did not show that technological protection was a preferred way. Instead, the means of protection, in addition to copyright law, comprised niche markets, pricing, trust, bad publicity, and nontechnical and technical means.     

Rough Justice: A Statistical Assessment of ICANN's Uniform Dispute Resolution Policy

Long-standing conflict between domain name registrants and trademark holders prompted the Internet Corporation for Assigned Names and Numbers (ICANN) to create a global, mandatory arbitration procedure known as the Uniform Dispute Resolution Policy (UDRP). The UDRP has been used in 2166 cases involving 3938 domain names as of 1 November 2000. The policy gives the initiator of a complaint, generally a trademark holder, the right to choose which ICANN-accredited dispute resolution service provider (RSP) will handle the case. During the preparation of the UDRP,some feared that complainant selection would lead to "forum shopping" that might bias the results. This article performs a statistical assessment of the forum-shopping thesis and finds support for it. There are statistically significant differences in the various RSPs' propensity to take away names from defendants; there are also major differences in the number of cases brought to each RSP. RSPs who take away names have the larger share of cases. The study examines other variables that might explain differences in market share, such as price, the plaintiff's nationality, or the time taken to decide a case. It finds that nationality and time also are correlated with market share. The study concludes that shopping for a favorable outcome is an important factor in the UDRP.     

Prevalence of soft neurological signs in Chinese people

Prof. Raymond C.K. Chen, a neuropsychologist with the CAS Institute of Psychology, has made novel progress in his studies of schizophrenia. His work has been reported by a recent issue of Behavioural Neurology.     

Our Own Devices: Heterotopic Communication, Discourse, and Culture in the Information Society 1

The main premise of this article is that in information societies generally, and in virtual social contexts particularly, a distinctive style of interaction to facilitate the communication of difference, heterotopic communication , has emerged. It rests on two cultural foundations: an ideological belief in the positive, socially integrating power of communication, and a prevailing ethic of instrumental rationality, subjective individualism, and strategically practiced self-interest. The former is demonstrated by the use of simulation and spectacle as sources of information; exhibitionism/voyeurism as a communicative style; and the awareness of surveillance. The latter is seen in the competitive use of knowledge as a commodity; a surface globalism masking deep parochialism; lateral as well as vertical information inequity; and the use of public versus private as strategies for engagement rather than as spaces. Those who engage in heterotopic communication resort to their 'own devices' both in the sense of personal agendas, strategies, interests, and interpretations, and in the form of the telecommunication tools that help realize them. These personal and technological devices allow individuals with the right educational and technical resources to avoid exposure to disagreement, difference, or other information that does not serve their direct purposes or reflect their particular views of the world; yet they also help convey the appearance of openness, availability, and cooperation. This style of interaction is used strategically in combination with information and communication technologies to gain social or economic advantages, but it may encourage social separatism and parochialism, inhibit the negotiation of disputes, and emphasize competing interests.     

Monoculture Rubber Plantations Have Negative Ef ects on Controlling Splash Erosion

<正>In Xishuangbanna,one of China’s most biodiverse regions,landscape has changed dramatically during the past three decades due to the conversion of tropical rainforest to rubber plantations.In steep areas,terraces are often constructed before planting rubber trees,which causes two important changes in the soil:the destabilization of soil in the bench terraces and the increased vulnerability of unvegetated riser faces to erosion.Few studies have documented the nature and intensity of erosion on bench terraces.Prof.LIU Wenjie and his colleagues from the Xishuangbanna Tropical Botanical Garden(XTBG)conducted a study in Menglun County(21°5′39″N,101°15′55″E),Xishuangbanna to evaluate the influence     

Chinese Scientists Use Earth Observation Technologies to Study and Protect Wild Camels

<正>Chinese scientists plan to apply Earth Observation technologies to protect the critically endangered wild camels(Camelus ferus).With the help of remote sensing,satellite positioning,geographical information system and wireless sensors networks,they will be able to access the distribution and population of the wild camels and protect their habitats.The project will be carried out by the International Research Center for Wild Camel Conservation,which was jointly established earlier this year by the Institute of Remote Sensing and Digital Earth(RADI)of the Chinese