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通过回顾相关文献,对重要基础设施脆弱性评价的研究基础、研究背景、评价思路、评价体系框架、评价内容等几个方面的主要观点、成果和发展趋势进行分析和总结。重要基础设施脆弱性评价以系统脆弱性分析为基础,是在识别出威胁的基础上对于系统要素和系统整体失效模式的分析,它是开展风险评价的重要组成部分。随着对基础设施系统分析的深入,评价思路逐渐成熟,即基于对系统进行"系统-子系统-要素"的分解,通过对每一环节所面临的威胁情景进行分析,进而对要素受损可能性进行判断,最终通过打分实现对脆弱性的定量评价。从评价体系框架的形成来看,主要可以分为"空间"到"时间"和从"物质"到"社会"两条路径,并且由于两条路径的不断交叉融合,形成了包含四个维度的评价体系框架,而目前的评价内容正是由此细化而来。评价内容主要涉及了地质条件与衰变、设施的报废与更新、地理位置与内部结构、相关性、中断威胁、政策与政治环境、保护与保障措施、容量与可用性八个方面。 相似文献
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[目的]对采用双盲评审模式和开放评审模式的OA期刊质量进行实证研究,验证"学术"与"开放"评价指标对OA期刊的评价效力以及"开放"指标的重要性.[方法]将OA期刊的质量评价分为两个维度,即以引文分析为基础的传统"学术质量评价维度"和以开放程度为标准的"开放质量评价维度";采用交叉列联分析和ROC(Receiver Op... 相似文献
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论科技期刊审稿意见书的制作 总被引：5，自引：0，他引：5
从审稿意见书的功能出发，分析审稿意见书制作的原则和依据，探讨其组成、框架以及各要素的优化配置。根据学术论文的不同类型特点，将审稿意见书分成研究类和综述类，论述了此两类审稿意见书的内容要素、基本构架和表述方法。讨论了以审稿意见书反映的内容作为主要的依据，对稿件质量进行定性和定量评价的方法和模式。 相似文献
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通过中国科学引文数据库(CSCD)和<中国科技期刊引证报告>(CJCR)近几年公布的中文科技期刊被引频次、影响因子两项主要文献评价计量指标,对<中华外科杂志>在国内外科类期刊中的地位和影响力进行分析和评价.结果显示,<中华外科杂志>在CSCD和CJCR两个著名数据库公布的被引频次、影响因子两项主要文献评价计量指标中均位居前列.研究结果表明,作为创刊较早的外科综合性期刊,<中华外科杂志>所发表论文的影响力是广泛而深远的;在现阶段,<中华外科杂志>在国内外科类医学期刊中仍具明显的领先优势. 相似文献
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通过对国内外相关研究文献的分析、比较,严格区分中文领域商务模式和商务模型的概念,提出电子商务应用概念性研究的两层次模型,并在本体领域对电子商务模式进行了解构,辨识出构造电子商务模型的主要元素.这些元素是建立电子商务模型的基本组件,是设计和评价电子商务模式的基础. 相似文献
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银行混业经营模式比较及其对我国的启示 总被引：3，自引：0，他引：3
从世界银行业的发展趋势来看,混业经营已经成为了主要趋势,主要西方国家的银行业已经实行了混业经营体制.对以美德为代表的两类混业经营模式进行了分析比较,对我国银行业的经营模式提出了一些建议. 相似文献
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《中国科学院院刊(英文版)》2008,22(1):2-3
CAS should stick to the principle of rendering service to, and giving impetus for, the development of China＇s science enterprise by making S＆T innovations, said CAS President LU Yongxiang. The CAS president made the remarks in a recent talk to communicate the gist of the winter session of the Party＇s Leading-member Group at CAS, which was held from 7 to 11 January in Beijing. 相似文献
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Marjorie Armstrong-Stassen Margaret Landstrom Ramona Lumpkin 《The Information Society》1998,14(2):153-164
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. 相似文献
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《中国科学院院刊(英文版)》2008,22(1)
With great care, Dr. ZHOU Zhonghe takes out a package wrapped by cotton tissue from a drawer and says: "This is the gem of our collections: the fossil of a bird that lived 125 million years ago!" Then, pointing at a tiny mound, he explains: "Look, this is the claw and that is the head. It was in the egg shell and ready to hatch ... The species fell into a family of waterside inhabitants." 相似文献
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A joint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology his co-workers from Norway US 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 the National Academy of Sciences on September .…… 《中国科学院院刊(英文版)》2008,22(1):6-7
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. 相似文献
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Caroline Haythornthwaite 《The Information Society》2001,17(3):211-226
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. 相似文献
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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. 相似文献
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Puay Tang 《The Information Society》1998,14(1):19-31
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. 相似文献
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Milton Mueller 《The Information Society》2001,17(3):151-163
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. 相似文献
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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.…… 《中国科学院院刊(英文版)》2008,22(1):15-15
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. 相似文献
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Prof. SUN Changpu from the CAS Institute of Theoretical Physics coworkers from University of Basel in Switzerland have worked out a way - at least in theory - to split a beam of molecules according to their chirality. The technique involves passing the molecules through three different laser beams is similar to the famous Stern-Gerlach effect whereby a beam of atoms passing through a magnetic field is split in two according to the atoms' spin states 《中国科学院院刊(英文版)》2008,22(1):23-23
Prof. SUN Changpu from the CAS Institute of Theoretical Physics and coworkers from University of Basel in Switzerland have worked out a way --at least in theory --to split a beam of molecules according to their chirality. The technique involves passing the molecules through three different laser beams and is similar to the famous Stern-Gerlach effect, whereby a beam of atoms passing through a magnetic field is split in two according to the atoms＇ spin states （Phys. Rev. Lett. 99 130403）. 相似文献