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近年来,智慧城市成为备受关注的城市发展主题。与之相应,智慧城市的评价亦引发了学界的很大关注。论文从对城市"智能"本质的探讨出发,指出将智慧城市建设理解为城市整体智能的持续提升的"过程"暨"城市智慧化"过程能更为清晰的反映其本质。这样的城市智慧化过程亦即一个开放的复杂"信息—物理—社会"融合系统的"进化"过程。基于此,论文借用软件工程中的软件能力成熟度的概念,提出应从智慧城市的"能力成熟度"视角来实现对智慧城市发展水平的动态评价。进而,分析智慧城市发展成熟度所涉及的核心因素,初步探讨其成熟度模型框架。 相似文献
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通过综合考虑城市基础设施水平、智慧应用水平、公共支撑体系等方面的因素,以北京、上海、广州、南京等8个城市的智慧城市规划纲要及"十二五"规划为依据,运用层次分析法构建了一套适合我国智慧城市发展的评价指标体系,为衡量和反映我国智慧城市建设的进度及发展水平,进一步建设智慧城市,以及比较各城市建设水平提供有益参考。 相似文献
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系统论认为,智慧城市是由目标子系统、技术子系统、主体子系统、客体子系统和管理子系统组成的大系统,智慧城市建设的核心就是由更为先进的技术系统武装或改造整个城市系统。上海市的智慧城市建设在技术基础设施、智慧治理、智慧民生和智慧产业等方面都取得了显著的成绩,但其初步形成的智慧城市系统也面临着各种问题和挑战。目前而言,编制科学的顶层规划、构建多主体共同参与的合力机制、强化新兴信息技术的研究和应用、完善智慧城市管理系统、促进智慧产业快速发展,是深化完善上海市智慧城市系统发展的主要途径。 相似文献
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在信息化铺天盖地的充斥着人们政治和社会生活,"智慧城市"已成为新时代城市发展的大趋势。目前我国已有100多个地区提出建设智慧城市。北京、上海、深圳、重庆、昆山等城市早已走在建设智慧城市的前列,建设和发展智慧城市已蔚然成风。智慧城市,不仅仅是单一的技术手段,他的发展能不断提升城市运行机制,改善管理公共服务,强化社会协同力量治理的新格局,从而实现城市的全面、健康、和谐的发展。 相似文献
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"智慧城市"已经成为当前中国城市建设和区域经济发展最重要的主题之一,也是"十二五"中国城市和区域发展的重要内容。本文首先分析智慧城市的概念与特征,然后结合现实明确智慧城市建设过程中存在的相关问题,接着确立智慧城市建设的目标,进而在建设目标的引导下,给出智慧城市建设切实可行的选择路径。 相似文献
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"智慧城市"成为现代城市建设与发展的重要理念。在分析智慧城市的内涵及其概念框架的基础上,从战略体系、社会活动体系、经济活动体系、支撑体系和空间体系5个方面分析广州智慧城市建设的现状及存在的主要问题,并从规划设计与统筹推进、社会管理与民生服务、科技创新与智慧产业发展、基础设施建设及其智能化、空间战略调整与空间结构优化等方面提出若干建议。 相似文献
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A research 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 in red wine-can improve the sensitivity of mice to the hormone insulin according to a report in the October issue of Cell Metabolism.…… 《中国科学院院刊(英文版)》2008,22(1):14-15
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. 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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Active biological molecules 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 therapy new nanodevice construction.…… 《中国科学院院刊(英文版)》2008,22(1):22-22
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. 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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Leah A. Lievrouw 《The Information Society》2000,16(2):155-159
This essay focuses on universal service and the Internet as means to support social and political participation. The emphasis on access to telecommunications systems in conventional approaches to universal service is contrasted with access to content. A model of the information environment is described that accounts for the roles of content and conduit, both of which are necessary conditions to achieve true access. A method is outlined for employing information indicators to observe or measure the information environment. 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