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1.
This paper was given as a key note at the North West Academic Libraries conference ‘Designing Spaces for Learning: Flexible learning spaces, libraries and changing roles’ in September 2006 and was adapted from the eSpaces study so that it met the aims and objectives of the North West Academic Libraries conference. The eSpaces study is shorthand for the Joint Information Systems Committee's ‘Study on How Innovative Technologies are Influencing the Design of Physical Learning Spaces in the Post-16 Sector’. The need for this study came from a recognition that most, if not all, education institutions are now integrating learning technologies into the design of new buildings and the refurbishment of existing ones. Managed learning environments, mobile computing, wireless local area networks and broadband are just a few of the technologies that are influencing how we design, use and manage our learning spaces. They are also changing how we design our libraries. The key findings of this study are outlined and the implications for library space and staff roles discussed.  相似文献   

2.
无线局域网将对网络技术的发展造成深刻的影响。本文简要介绍了无线局域网各方面的情况, 包括其背景、主要技术、组网实现以及IEEE802. 11 物理层与MAC 层协议规范, 并分析了它的局限与发展。  相似文献   

3.
Handheld Serials     
《期刊图书馆员》2013,64(4):141-153
ABSTRACT

As computing becomes more portable, an ever-increasing number of people are dependent upon smartphones, personal digital assistants, webpads, and other wireless devices. This paper addresses the effect, if any, of these current and future wireless technologies on electronic journal publishing. Have these technologies impacted e-journal publishing to this point? What are the expectations and strategies of journal publishers in dealing with the changing technology? What special issues do these devices present regardimng licensing?  相似文献   

4.
Recent years have seen changing and shifting technologies as well as an uncertain economic climate. This research focuses on how audiences have reacted to these shifts, using a number of different sources of data to test hypotheses related to spending time and money on media. We suggest that previous studies examining audience expenditures and diffusion of new technologies may have overlooked the stressful economic conditions surrounding diffusion of some of those technologies. We find an increase in entertainment technology purchases as well as time spent with new and traditional media during recession years, beyond that indicated by the longer term trends. While there is a general decrease in coviewing behavior in recent years, the recession years reversed the trend. Results are discussed in terms of the constancy hypothesis and our hypothesis that the media provide outlets for reducing stress during difficult economic times.  相似文献   

5.
The lack of widely available, affordable broadband Internet access has spurred a movement in which municipalities are rolling out wireless broadband networks. This movement has raised a number of questions including: Why are municipalities acting as the early adopters of wireless broadband technology? How does increased state regulation of municipal broadband networks affect this trend and how can cities respond? As cities use wireless broadband technology to enhance services to citizens, the growth of municipal wireless deployments has transitioned from linear to exponential. In response, many states have passed laws to regulate and restrict cities' ability to own, operate, deploy, or profit from either telecommunications or information services. Current and pending laws will be examined to understand how cities can deploy a wireless broadband network under these regulations. An analysis of municipal facilities and technology expertise illustrates the opportunity for public–private cooperation in wireless deployments. This paper will show that cooperation is beneficial in many cases. Finally, current business models will be examined for their ability to foster cooperation between the public and private sectors, bridge the digital divide, and create competition among private sector providers.  相似文献   

6.
智能检索环境下的索引编制   总被引:2,自引:0,他引:2  
阐述了智能检索的实质,分析了智能检索环境下编制索引遇到的障碍,探讨了实现智能检索在编制索引方面应当采取的技术,包括文档预处理技术、元数据和RDF、语义网技术和机器学习。并且举例分析了这些技术的实现问题,同时说明了索引编制的整个过程。  相似文献   

7.
数字图书馆关键技术的比较研究   总被引:4,自引:0,他引:4  
论述已应用和将应用于数字图书馆的一些关键技术,包括数据描述技术、数据存储技术、数据检索技术以及系统集成技术等,并对这些技术所涉及的具体内容进行比较和客观评价,提出数字图书馆关键技术的发展趋势。  相似文献   

8.
Millions of Canadians residing in Canada's northern, isolated, rural, and remote communities do not have broadband Internet access. This situation has led to a national “broadband divide.” That is, the deployment of wireline broadband is very limited in Canada's northern, isolated, rural, and remote areas because of the significant expense of installation and maintenance of the wired infrastructure needed to reach dwellings in these locations.Terrestrial broadband wireless technology, on the other hand, does not entail the same kind of physical infrastructure. As a result, there are dramatic changes in how spatial considerations affect the provision of broadband Internet services (BIS) to areas beyond the urban zone. In particular, the spatial question is now focused on assessing the capacity for different technological solutions to reach profitable population bases, and brings to the forefront organizations that are developing non-line-of-sight (NLOS) technologies that would permit wireless Internet access over much greater distances than current solutions.We begin this paper by establishing the importance of broadband connectivity to Canada's northern, isolated, rural, and remote communities. This discussion comments on the role of the Government of Canada in the provision of broadband connectivity to residents of these communities, and outlines the current regulatory issues that govern wireless services and policy formulation.The second part of the paper illustrates the use of geographic information system (GIS) approaches in the study of wireless broadband planning and deployment. Case study findings suggest that GIS applications can make a significant contribution to the analysis of wireless deployment planning, to the understanding of the relationships between wireless signal sources and consumers, and to the spatial configuration of terrestrial wireless broadband networks. We conclude the paper by discussing how the GIS approach employed could be used to inform the public policy process with regard to increasing access to broadband Internet services in all regions of the country, and thereby providing the opportunity for all Canadians, regardless of location, to fully participate in the Information Society.  相似文献   

9.
Emerging technologies can have major economic impacts and affect strategic stability. Yet, early identification of emerging technologies remains challenging. In order to identify emerging technologies in a timely and reliable manner, a comprehensive examination of relevant scientific and technological (S&T) trends and their related references is required. This examination is generally done by domain experts and requires significant amounts of time and effort to gain insights. The use of domain experts to identify emerging technologies from S&T trends may limit the capacity to analyse large volumes of information and introduce subjectivity in the assessments. Decision support systems are required to provide accurate and reliable evidence-based indicators through constant and continuous monitoring of the environment and help identify signals of emerging technologies that could alter security and economic prosperity. For example, the research field of hypersonics has recently witnessed several advancements having profound technological, commercial, and national security implications. In this work, we present a multi-layer quantitative approach able to identify future signs from scientific publications on hypersonics by leveraging deep learning and weak signal analysis. The proposed framework can help strategic planners and domain experts better identify and monitor emerging technology trends.  相似文献   

10.
The information field continues to evolve rapidly as digital technology changes the very nature of information and how people interact with each other and with information. This article argues that the past 30 years have seen a shift from distinct emphases on information, individual people, and specific technologies to emphases on the interactions among more diverse forms and amounts of information, people, and technologies. Human–information interaction shifts the foci of all aspects of information work; blurs boundaries between information objects, technology, and people; and creates new forms of information. This article discusses changes in each of these components of information and trends and challenges surrounding the study of their interactions are presented.  相似文献   

11.
Wireless is changing the policy calculus for municipal broadband   总被引:1,自引:0,他引:1  
Historically, the justification for municipal provisioning of “last-mile” communications infrastructure has focused on the natural monopoly aspect of wireline infrastructure. Growing interest in wireless ISPs, municipal hot spots, and access to public space for siting wireless infrastructure suggests new and expanded opportunities for local government participation in telecommunication services. This paper examines the implications of emerging wireless technologies for the policy debate over whether municipalities should be playing an active role in providing last-mile broadband services and, if so, what the nature of that role should be.  相似文献   

12.
This paper looks at at the impacts and implications of new technology for educational publishing in the context of major growth in e-Learning. Although it acknowledges the continuing influence of textbooks both on how emerging technologies will drive changes to courses and the pace at which courses evolve, the major focus is upon the impact of technological and organisational change upon the value chains for e-Learning and educational publishing. It reviews relevant developments in technology, e-Learning and educational publishing and the connections between them, using recent examples. Fundamental to the nexus between technology, e-Learning and publishing is the search for value and for new means of creating and leveraging value in a turbulent higher education marketplace. The subjective nature of value is recognised in the context of different stakeholders. The paper then links changing perceptions of value to a perceived shift within educational publishing, which entails moving from the more or less homogeneous delivery of packaged content towards the provision of truly customised learning services combining use of the latest technologies with access to high quality content. The kinds of value, old and new, provided by educational publishers are compared in a table. This shift in value is then explained in the context of value chains for e-Learning and for educational publishing. So far as educational publishing is concern there are signs of both disintermediation and reintermediation in the value chain. Amidst these changes, the position of educational publishing appears set to improve through its potential to provide a new range of integrated technology and content services.  相似文献   

13.
On July 27, 2009 the United States Government Office of Management and Budget (OMB) publicized its intent to review the nine-year-old prohibition of web tracking technologies such as cookies on Federal agency web sites. OMB cited its need to continue to protect the public's privacy while visiting Federal Government web sites, while at the same time “making these web sites more user friendly, providing better customer service, and allowing for enhanced web analytics” (Federal Register, 2009, p. 37062). In this paper, we review the history of the Federal government's position on cookies, and describe exactly how the technology works and why this shift in policy toward the use of cookies is logical and necessary for the evolution of electronic-government and government 2.0 services in terms of accessibility and capability. We review two major issues with which Federal agencies must contend related to the use of cookies – privacy, and records management. It is interesting to note that, despite earlier research on the implications of privacy and records management concerning other adopted technologies such as e-mail, these issues continue to be complex and misunderstood. We discuss the implications of cookies as records for future e-Government services and for long-term records management.  相似文献   

14.
15.
This paper proposes a design for a low cost network model designed for rural and remote areas of the globe. It presents a six component framework, comprised of technical and non-technical issues that will guide a successful design and deployment of a community size wireless network. The authors conducted a number of studies in England and Tanzania to study available technologies, their potentials and shortcomings. They also studied challenges facing remote areas of developing countries as well as the challenges that face network operators in developing countries. Using the outcomes from these studies, they designed a model that takes a holistic approach to address these challenges. The designed model uses WiMAX technology as a key factor in creating a low cost community owned network. Practical and simulation tests show that a single base station WiMAX network is capable of covering up to 10 km radius community, linking wirelessly with acceptable quality services. Designed model is suitable for small communities in rural and remote areas in developing countries. Network designs are useful for anyone looking to build campus size wireless networks.  相似文献   

16.
关键技术是指在技术领域中占据重要地位、反映技术发展趋势并具有引领作用的重要技术。运用基于专利引文分析的关键路径方法、岛群方法和高被引方法以全息摄影技术领域为例对关键技术挖掘方法进行理论分析和实证研究,比较这三种方法在关键技术挖掘中的作用及局限,在此基础上探讨将这三种方法相结合进行关键技术挖掘的可行性。  相似文献   

17.
实用分类系统与语义网:发展现状和研究课题   总被引:24,自引:1,他引:24  
语义网(Semantic Web)是当前因特网的延伸,在语义网中信息被赋予清晰的定义与含义,因而计算机和人可以更好地合作。语义网的目标是要充分发挥因特网的潜力,最终使技术能够让机器支持全球化的知识交流。实现语义网的核心是对实用分类系统(ontologies)的开发和利用。实用分类系统已经远远超出图书馆学、哲学、知识表述的范畴,图书馆、信息产业、工商业都在注视语义网技术的开发和应用。研究结果表明,实用分类系统在支持电子商务的浏览和检索与知识管理配置的可互操作性方面起着关键的作用。本文针对目前语义网的发展和实用分类系统的技术,对其应用领域、主要技术和标准、研究项目、发展动向作一综述和评论,并介绍在语义网方面的几个主要研究课题。  相似文献   

18.
This paper explores optical disk technology and how it might be, and is being, applied in law libraries. The basics of optical disks are covered: what they are, what their advantages and disadvantages are in terms of storage capacity, durability, speed, cost, and information retrieval. A sampling of commercial products is provided and some implications for the future of law libraries are discussed.  相似文献   

19.
Objectives: This article describes a project which explored the potential for mobile technologies to give health students in the community access to learning resources. The purpose included the need to identify possible barriers students could face in using mobile technologies. Another focus was to assess the students perceptions of the importance of being able to access learning resources in the community. Methods: This 1‐year project used two main approaches for data collection. A review of the literature on mobile technologies in the health context was conducted. This was used in a systematic way to identify key issues and trends. The literature review was used to inform the design and production of a questionnaire. This was distributed to and completed by a group of community health students at Northumbria University, UK. The questionnaire was piloted and there was a 100% completion rate with 49 returned forms. Results: The literature review indicated that most mobile technology applications were occurring in the US. At the time of the review the most prevalent mobile technologies were PDAs, laptops, WAP phones and portable radios with use being concentrated around doctors in the acute sector. A range of advantages and disadvantages to the technology were discovered. Mobile technologies were mainly being used for clinical rather than learning applications. The students showed a low level of awareness of the technology but placed great importance to accessing learning resources from the community. Conclusions: Significant development and changes are taking place in mobile technologies. Since the data collection for this work was completed in 2004 podcasting and videocasting have become significant in mobile learning for health professionals. Librarians will need to address the relevance and implications of m‐learning for their practice. Care and consideration needs to be given on the time and resources librarians allocate for the necessary development work around mobile technologies. Collaboration and partnership working will be most effective approach for librarians wishing to integrate their services with m‐learning technologies.  相似文献   

20.
从分析自适应超媒体系统的方法和关键技术入手,概述自适应超媒体系统的技术现状。在深入探讨自适应展示和自适应导航的基础上,分析研究自适应超媒体系统发展的趋势,即基于结构计算的自适应超媒体和开放式自适应超媒体模型。最后,对自适应超媒体系统技术的发展方向进行预测。  相似文献   

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