共查询到20条相似文献，搜索用时 296 毫秒
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本文首先解释了数字信息资源配置效率的内涵.在分析了我国数字信息资源配置中存在的问题及产生原因的基础上.总结出宏观调控的必要性,最后提出了我国提高数字信息资源配置效率的宏观手段:经济调控手段、政策法规调控手段、行政调控手段、技术调控手段. 相似文献
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略论我国数字信息生产制度改进的思路:一个基于社会信息成本的分析 总被引：1，自引：0，他引：1
在我国数字信息生产制度下,社会信息成本居高不下,造成这一现状的主要原因是重复建设与开发,技术效率较低、人性化口味不高、数字信息资源覆盖范围窄、缺乏整合等。解决这些问题,各级政府应当在对数字信息技术开发企业的激励政策与措施上、国家数字信息长远发展规划上、推广OA模式以及对这一领域内公共企业的建设上下功夫。 相似文献
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网络政府数字信息资源配置效率评价实证研究 总被引：1，自引：0，他引：1
介绍了数据包络分析方法(DEA)进行了简要,并在网络政府数字信息资源的一般评价模型基础上,给出了基于政府门户网站的输入输出指标,用所构建的评价指标对各省级政府门户网站的相对有效性情况进行了实证分析,进而推导出网络政府数字信息资源的配置效率情况. 相似文献
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数字信息资源用户需求研究 总被引：1，自引：0，他引：1
分析了用户信息需求、数字信息资源等概念,讨论了用户数字信息资源需求结构,即用户数字信息需求、数字信息资源服务需求和数字信息资源检索系统需求三部分,并根据现有数字信息资源需求研究文献,归纳了影响用户数字信息资源需求的因素,提出"影响因素-需求结构-满意"模型. 相似文献
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当前特色数字信息资源建设的发展趋势是投资的国际化、数字信息资源内容的国际化以及数字信息资源生产与联机服务的跨国经营越来越普遍;为此应加强特色数字信息资源建设的标准化建设步伐、知识产权的合理解决、加强特色数字信息资源的产业化发展力度,并在数字信息资源产品的市场开发中引入深层次营销思想,以尽可能地使数字信息资源产品的价值得到最大限度的发挥. 相似文献
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特色数字信息资源建设的发展趋向 总被引：1，自引：0，他引：1
特色数字信息资源建设的发展趋势是投资的国际化、数字信息资源内容的国际化以及数字信息资源生产与联机服务的跨国经营越来越普遍;为此本文重点探讨了特色数字信息资源建设标准的国际化、内容整合的国际化,特色数字信息资源建设的产业化以及深层次营销战略在特色数字信息资源网络营销中的运用. 相似文献
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[目的/意义]从概念和结构上剖析老年人数字信息生态适应能力,可丰富相关学科领域研究内容,为老年人数字信息生态适应能力的深入研究奠定理论基础;为多路径全方位提升老年人数字信息生态适应能力、提高老年人与数字信息生态环境的和谐度提供理论指导。[方法/过程]首先,提出老年人数字信息生态适应能力概念并对其要点进行解析,构建概念模型;其次,根据适应对象的组成将老年人数字信息生态适应能力划分为4个构面,并对各个构面及其组成要素的概念与作用进行分析;最后,采用专家咨询法探究各个构面及其要素的主次关系。[结果/结论]老年人数字信息生态适应能力是指为顺应数字信息生态环境变化,老年数字信息人进行数字信息行为的适应性改变,以达到数字信息行为与数字信息生态环境相和谐的能力。老年人数字信息生态适应能力可划分为数字信息本体适应能力、数字信息技术适应能力、数字信息制度适应能力、数字信息场景适应能力4个构面,每个能力构面又有多个能力要素,不同能力构面和能力要素的重要程度有较大差异。 相似文献
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本文首先提出研究数字信息可视化技术的意义,然后对数字信息可视化含义作出解释,并对数字信息可视化实现方法进行分类阐述,最后列举了数字信息可视化技术的新进展. 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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《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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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
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《中国科学院院刊(英文版)》2014,(3):212-213
<正>In February 2014,the 30th Chinese Antarctic inland expedition team reported that they have successfully conducted the seeing measurement at the Antarctic Taishan Station using a Differential Image Motion Monitor(DIMM)developed by the Nanjing Institute of Astronomical Optic and Technology(NIAOT),Chinese Academy of Sciences.In astronomy,seeing is a physical parameter that describes the irregular movement and blur of the star 相似文献
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XIN Ling 《中国科学院院刊(英文版)》2014,(4):270-271
Amassive overhaul is coming to the Chinese Academy of Sciences （CAS）. To straighten its ＂fragmented, inefficient research＂, the academy has decided to restructure its 104 institutes for better teamwork. 相似文献
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SONG Jianlan 《中国科学院院刊(英文版)》2014,(4)
<正>DNA demethylation in mammalian zygotes,a biochemical process through which the parental genomes let go the epigenetic marks from their"past lives"to obtain totipotency,has long fascinated biologists:how does it happen?A joint team at the CAS Shanghai Institutes for Biological Sciences tells a surprising story. 相似文献
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China is one of the fastest growing economies worldwide. Are science and research also in the fast lane? We talked with LUO Yuan, scientist at the Institute of Coal Chemistry in Shanxi, and Axel Mosig, Professor at Ruhr University in Bochum, who has first-hand experience working and living in China. 相似文献
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Joachim Trümper 《中国科学院院刊(英文版)》2014,(2):201-201
<正>"In 1979 two Chinese scientists joined our institute in the framework of the historical CAS-MPG agreement.This marked the beginning of a longstanding fruitful collaboration.Many visitors followed and contributed to our scientific programs.–My first visit to China took place in 1981–with stays at CAS institutes in Bejing,Nanjing,Shanghai and Kunming,where I received unforgettable impressions of 相似文献
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《中国科学院院刊(英文版)》2014,(3)
<正>May 15,2014Publicly funded scientific research is an important means for the society to create knowledge,support innovation,and promote growth.Research articles from such research are knowledge resources to be shared by all.Their open access will facilitate the dissemination and utilization of knowledge,turn the knowledge produced by public investment effectively into innovation and development capabilities of the society,ensure that public knowledge benefi ts all,and strengthen the innovation driven development strategy.Therefore,Chinese Academy of Sciences(CAS)issues at the present stage the following open access policy for articles from publicly funded scientifi c research projects:CAS requires its researchers and graduate students to 相似文献
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《中国科学院院刊(英文版)》2014,(3)
<正>Between February and March of 2013,the source of avian-origin H7N9 human infection was discovered in Shanghai and Anhui,China.Prior to this,H7N9 has only exhibited characteristics of a low pathogenic avian infl uenza virus,carried by chickens with no known cross-species transmission.By the end of August 2013,Chinese mainland reported a total of 134 confi rmed cases of H7N9 human infections across12 provinces and 42 cities,resulting in 45 deaths.In October and November,Zhejiang Province found three new cases and Guangdong found one case of human infection,suggesting the possibility of a comeback in the fall and winter seasons.Researchers led by Prof.GAO Fu(George Fu Gao)at the Institute of Microbiology,CAS and Beijing Institutes of Life Science,have made progress on understanding 相似文献