图书馆情境感知服务应用对策研究——以南昌市7所本科院校为例

现有图书馆情境感知应用系统评估大多集中于技术领域,或可以客观量化的图书馆实体比较,比如馆体类型、编制、资源投入等;较少从使用者角度评估出发进行研究的。本文对南昌市七所本科院校进行了问卷调查,采用问卷调查方式收集使用者主观评估信息,研究发现学生频繁使用手机却很少访问图书馆移动服务,分析了学生对图书馆开展情境感知服务的有用性及易用性认知,总结归纳了图书馆情境感知服务应用现状,分析当前图书馆开展情境感知服务存在的问题,并提出相关改进建议。     

非再生能源资源使用者成本:一个新的估计

对使用者成本的准确估算与补偿是非再生能源资源可持续利用的关键.本文对传统的使用者成本法做了两方面修正:一是考虑了资源开采中的耗损问题;二是强调了通货膨胀对使用者成本的影响.采用修正的使用者成本法计算了1985年-2010年中国煤炭、石油天然气等资源的使用者成本.研究发现,现行的资源税费仅能部分补偿使用者成本,煤炭、石油天然气开采中存在严重的跨代负外部性.要完全内部化使用者成本,煤炭的资源税费总额应由从量的9.2元/t提高至42.7元/t,石油天然气的资源税费总额应提高至从价的21.06％.要对矿产资源的税费制度进行配套改革,在不增加矿业企业总体税费负担水平的情况下,提高资源税费的征收标准,以实现对跨代外部成本的充分补偿.     

浅析设计管理中的消费心理学问题

设计管理的宗旨是以使用者(消费者)为着眼点,整合企业各部门和系统,协调各种资源,并且对设计的全过程进行有效的管理,设计出符合消费者心理的产品与服务。心理学是研究人的心理现象和活动规律的科学。     

可耗竭资源价值理论与陕北能源价值补偿的实证研究

本文首先明确了可耗竭资源跨期分配的动态效率标准和代际公平标准,以动态效率标准为原则,通过最优化模型分析,解释了可耗竭资源价格构成的原理。即资源价格理应保含边际直接成本、边际环境成本和边际使用者成本三部分内容,其中边际使用者成本是资源自身价值的体现。然后讨论应当如何借鉴国外经验,对资源开发过程中发生的各项成本进行补偿。最后展开量化分析,采用以代际公平原则为指导的使用者成本法估算2001年至2006年6年间陕北煤炭、石油、天然气资源开发造成的使用者成本大小,分别与各年地方财政收入当中的资源税收入作比较,得出当前价格及税收水平下,陕北能源资源价值损耗远未能得到有效补偿的结论。如此将不利于该地区能源经济的可持续发展。     

基于知识网格思想的WEB-KMS研究

分析了Web-KMS的核心思想和知识网格的思想应用于Web-KMS建设的必要性和现实意义,提出了Web-KMS的三层框架体系结构:人机层、网格服务层和知识资源层,并对这三层体系结构所包含的核心功能服务模块做了深入论述.建设基于KG的KMS旨在解决知识的无序,消除垃圾知识,使知识使用者能够在适当的时候查询到自己需要的知识.     

图书馆信息管理建设存在的问题与对策

图书馆的信息管理对高校人才培养、学术研究、科技创新起着重要的作用。我国图书馆的信息管理中存在的问题主要表现在：图书馆的馆藏没有被充分地利用,新的信息管理和检索技术也没有发挥其应有的作用,图书馆在整个高校中处于被忽略的状态;馆藏资源落后,信息系统难以满足使用者新的需求;藏书结构不够合理。因此,要提高图书馆工作人员的素质,强化图书馆的服务意识和理念,转变高校图书馆的服务方式,加强高校之间以及高校与社会之间信息资源的交流。     

移动数字图书馆的未来发展研究

随着社会发展及信息技术的普及,图书馆的建设也正朝着信息化、数字化的方向发展,利用先进的网络环境,为使用者提供更加有效且便捷的信息资源服务,图书馆的建设向网络化和数字化转型,为更好的适应经济社会的发展要求,更好的为社会发展服务。本文主要是从移动数字图书馆的概念和发展现状出发,对移动数字图书馆发展现状中存在的问题进行对策研究,从而进一步探索移动数字图书馆的未来的发展趋势。     

AES-128算法的FPGA优化实现

针对FPGA的器件资源特点,对AES-128算法进行优化:包括调整轮操作迭代结构获得并行数据路径、用移位寄存器实现ShiftRows运算、用配置Block RAMs实现SubBytes运算、用异或运算和移位运算的资源共享方式实现MixColumns和InvMixColumns运算。最后设计了密钥扩展单元和加/解密单元的FPGA优化实现结构,给出AES-128综合仿真结果。     

浅谈建筑智能与建筑电气技术

智能建筑是信息时代的必然产物,是高科技精灵与现代建筑的巧妙集成,它利用系统集成方法,将智能型计算机技术、通信技术、信息技术与建筑艺术相结合,通过对设备的自动监控、对信息资源的管理和对使用者的信息服务及其与建筑的优化组合,所获得的投资合理、适合信息社会需要并且具有安全、高效、舒适、便利和灵活特点的建筑物。     

使用者成本法及其在煤炭资源价值折耗测算中的应用

自然资源中的不可再生资源与其他资源相比具有有限性和稀缺性的特征,因此在对不可再生资源的开发利用中必须对其资本价值的损耗进行计算,这样才能得到反映国民经济真实水平的GDP,更为重要的是这样得到的GDP是符合可持续发展要求的GDP。随着“绿色GDP”观念的深入,用于测度资源价值损失量的方法也逐渐成熟。本文回顾和总结了国际上被广泛使用的度量资源价值折耗的“使用者成本法”,并讨论其在实务上的应用。以我国1981年--2000年煤炭资源开发利用数据作为对象,利用使用者成本法对其进行实证计算,分别计算了0%、2%、5%折现率下中国煤炭资源的资本价值损失量,并作图讨论了资源价值折耗变化的趋势,发现我国煤炭资源的开发利用造成了严重的价值折耗而未得到补偿,据此得出加快我国能源资源可持续利用刻不容缓的结论。最后结合实证结果提出使用者成本法应用中的几点建议。     

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.     

Low doses of a red wine ingredient figh diabetes in mice

Aresearch group led by Prof. ZHAI Qiwei from the Institute for Nutritional Sciences under the CAS Shanghai Institutes for Biological Sciences has discovered that even relatively low doses of resveratrol--a chemical found in the skins of red grapes and in red wine--can improve the sensitivity of mice to the hormone insulin, according to a report in the October,2007 issue of Cell Metabolism. As insulin resistance is often characterized as the most critical factor contributing to the development of Type 2 diabetes, the findings“provide a potential new therapeutic approach for preventing or treating” both conditions, the researchers said.     

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.     

Molecular motor assembly of a biomimetic system

Active biological molecules and functional structures can be fabricated into a bio-mimetic system by using molecular assembly method. Such materials can be used for the drug delivery, disease diagnosis and therapy, and new nanodevice construction.     

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