基于Spring MVC和Hibernate集成的Portlet开发构架研究

J2EE在Portal开发上定义了JSR168接口规范,实现了在不同服务器上的门户可移植性。Spring框架的引入,让Portal开发实现了基于MVC的多层体系结构,使门户系统的开发和扩展变得更加容易。深入研究了基于Spring和Hibernate的Portal开发构架,基于该构架完成了一个简单的Portal系统,并验证了构架的合理性。     

企业信息门户成熟度综合评价研究

随着互联网技术的飞速发展,企业信息门户(Enterprise Information Portal,EIP)在现代企业管理中扮演着越来越重要的角色,因此有必要去对企业信息门户的成熟度进行综合评价研究。首先阐述了EIP的概念、功能,进而提出了企业信息门户成熟度的概念;其次在结合EIP自身特点的基础上,构建了EIP成熟度的综合评价指标体系;并选用层次分析法(AHP)与模糊综合评价法进行评价,即利用AHP法确定指标权重,模糊综合评价法计算评价对象的量化得分;最后,选取某一企业的信息门户建设案例,进行了综合评价研究,并分析了案例中的相关问题。     

基于Portlet的网格Portal的介绍与应用

网格 Portal 即网格门户，利用主流的Web 技术提供Web界面，方便用户使用并提供网格管理的功能和服务。新一代基于Portlet虚拟组件的网格Portal显著降低了网格Portal的开发难度和成本，实现了不同Portal组件之间的高度兼容和互换，已经成为了新一代网格 Portal 的主流技术。本文在介绍基于Portlet的网格Portal的发展情况和设计技术的基础上，探讨了羊八井宇宙线观测实验的网格Portal 的功能与设计。     

基于角色层级的访问控制框架在门户平台中的设计与实现

在对Portal平台资源分配的特点以及基于角色层级的访问控制模型研究分析基础上,提出了门户平台上基于角色层级的访问控制框架的总体设计方案,随后对该访问控制框架的各组成模块的设计与实现进行了详细阐述说明。     

基于语义的电子商务门户设计与实现

本文简要介绍了企业信息门户的基本概念和语义Web的基本知识,分析了设计门户的传统方法和语义方法的区别,构建了基于语义技术的电子商务门户框架,最后给出了此框架的微观技术实现。     

JetSpeed平台上的企业信息门户搭建

信息化建设是经济全球化的必然趋势,然而信息化的进程却引发了一个问题:内部信息孤岛的产生导致信息流通速度的降低。企业信息门户(Enterprise Information Portal,EIP)技术的核心思想是使合法用户通过单一接口迅速、快捷地获取所有相关的信息。因此,EIP能有效整合系统资源,使企业在激烈竞争中立于不败之地。     

新一代数字电视Portal门户导航系统设计

本文阐述了一种基于智能电视操作系统的Portal导航系统,通过研究现有Portal的业务模型和接入数据,研发和设计了支持多类型终端、服务用户数更多、操作更方便、功能更强大的Portal门户导航系统。     

EIP--企业制胜的法宝

本文通过介绍企业信息门户(Enterprise Informstion Portal)这一新的信息传送机制，来帮助企业员工及用户搜索所需的全部信息。本文主要探讨了EIP的概念、特点和EIP的体系构成，最后讨论了EIP的关键技术实现。     

基于EIP的供应链信息共享模式研究

21世纪的竞争是供应链之间的竞争,而信息共享是供应链管理的研究重点和热点。通过对当前供应链信息共享的三种主要模式及其优缺点的分析,提出了基于EIP(Enterprise Information Portal,企业信息门户)的供应链信息共享模式。     

基于MyLibrary的高校数字图书馆个性化门户服务研究

在对比分析国内外高校图书馆MyLibrary个性化信息服务应用现状的基础上,结合MyLibrary系统的自身特点和国内高校图书馆个性化服务门户存在的主要问题,构建了一个基于MyLibrary的可扩展的高校数字图书馆个性化门户服务框架。该框架除了具有基本的资源定制功能外,还进一步完善了用户个性化服务功能,并扩展了馆员服务功能,旨在通过该框架的设计,探讨国内高校数字图书馆个性化门户服务的应用前景与发展趋势,以期促进高校数字校园个性化服务门户的建立与应用。     

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.     

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     

More than Skin Deep – Understand Skin Biology by Means of Dermatogenomics

<正>The Paul Gerson Unna Research Group on Dermatogenomics was founded in October 2012 at the Partner Institute for Computational Biology.The ultimate goal of the group is to understand the biology of skin and skin appendages.