云计算在电信业的发展研究

以云计算为代表的新兴信息技术,对传统的电信业带来冲击的同时,也带来了希望。本文首先阐述云计算的发展现状,然后分析云计算在电信业中的发展,最后详细探讨了电信业中云计算发展面临的机遇与挑战。     

Telecommunications,cities and technological opportunism

The advent of telecommunications and the emergence of the information age have given rise to great expectations regarding urban change. The paper examines the assumptions underlying the claims for change and distinguishes between processes which may alter the structure of the city and those which change the functions of cities. In the former, it examines the assumptions underlying the decentralization-concentration hypotheses, suggesting that there is no deterministic effect of telecommunications, and that the structure of cities is largely affected by the persistent need for physical transport. Telecommunications can be used by agents to exercise greater flexibility in location decisions. At the global scale, the emergence of the world cities is facilitated by telecommunications, but only few cities are likely to gain this status. The effects of telecommunications on urban form and function are mostly the result of opportunities seized by individual agents and not by deterministic or naive policy approaches.     

Telecommunications and Cities: International Perspectives

Most industrialised countries have been shifting to an information economy. Theireconomic structure is dominated by industries based on the collection, processing and transfer of information. Similar changes are taking place in the workforce, with a growing number of people employed in information-based occupations (OECD 1981).     

Spot and Aspirated Laser Smoke Detection in Telecommunications Facilities

Full-scale, in-situ comparison tests of spot and aspirated laser detection systems in an active telephone switch center were conducted to compare the response times of spot and aspirated smoke detection systems when exposed to a variety of smoke sources and ventilation conditions. The report documents the performance of multiple systems varying in detector type, detector spacing and detector locations (i.e., mounted on the ceiling versus on return air grills). The work provides data intended to guide system designers in the selection and use of very early warning smoke detection systems.     

Fee versus royalty licensing in spatial Cournot competition

This article investigates the optimal licensing mechanism in a spatial model where competitors set quantities and one firm owns a cost-reducing innovation. We show that when the firms spatially discriminate, the innovator gets higher profits by licensing through royalties instead than through a fixed fee, whereas in the case of uniform delivered quantities, the innovator prefers licensing by royalties (fixed fee) if and only if it has not (has) a sufficiently strong locational disadvantage with respect to the potential licensee.     

Telecommunications and Spatial Restructuring: An Australian Perpective

Changes over the past twenty-five years in information and communication technology (ICT) are beginning to provide us with a clearer picture of the technical platform that will influence the shape of urban and industrial development into the 21st century. During this period we have experienced a number of key paradigm shifts in computing: from 1960s batch systems to 1970s time sharing systems to 1980s desktop systems (Newton et al. 1988). At the same time, but somewhat independently, communications were evolving from the slow speed analogue public switched telephone network which provided a measure of computer-to-computer interaction (via modems) to the newly emerging high speed broadband digital networks, networks which will provide a truly vast array of value added products and services (discussed more fully in Cavill and Fidler' paper). The dramatic price-performance improvements in these technologies and the synergy which now exists between computers and communications provides us in the 1990s with the core information infrastructure of the future: computers and the networks that interconnect them (Newton etal. 1991).     

数据质量对医院病案管理信息系统的影响

病案管理信息系统已在医院广泛应用,它是利用网络技术和计算机系统对病案信息进行现代化管理的有效方法。数据质量缺陷是信息系统运行中经常出现的问题,给医院工作人员及管理者造成诸多不利影响。本文从病案信息的特点出发,简要分析了数据质量存在的问题,详细论述了数据质量问题对医院病案管理信息系统的影响,并提出几点解决数据质量问题的对策。     

北京邮电大学宏福校区学生宿舍

文章介绍了北京邮电大学院宏福校区学生宿舍的设计,包括总体规划设计、建筑设计和景观设计。     

光纤网络在通讯工程技术中的应用

光纤网络的诞生和发展是电信史上的一次重要革命,因其具有抗干扰、速率快、容量大的特点,利用光纤的信息传递优势可以最大限度的提高资源利用效率,因此光纤通信改变了传统的通信方式。随着光纤网络在通讯工程技术中的广泛应用,与之配合的网络基础技术也随之发展起来,其已经渗入到有线通信的多个领域,成为现代通信的主力军,对社会生活的影响日益深刻。展望将来的通信行业,光纤网络技术具有不可限量的潜力。因此,研究光纤网络在通讯工程技术中的应用具有十分重要的现实意义。     

厦门邮电大厦大体积混凝土施工

介绍厦门邮电大厦3.5m厚超大体积混凝土施工中,在配比设计、混凝土浇筑顺序、混凝土表面处理、混凝土内温控监测及混凝土养护等方面采取的有效控制手段,避免混凝土产生有害结构裂缝的措施。