共查询到20条相似文献，搜索用时 46 毫秒
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首先分析有关公共图书馆研究的国家机构和期刊分布;然后绘制关键节点文献图谱,并对其进行了分析;最后通过检测主题词词频变动趋势确定国际公共图书馆研究的热点和前沿领域,并绘制出国际视野下的公共图书馆研究热点与研究前沿的知识图谱。 相似文献
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基于Citespace的商务智能研究热点与前沿可视化分析 总被引：2，自引：0，他引：2
分析Web of Science中以商务智能为主题的文献的时间和地域分布,借助Citespace软件绘制商务智能领域关键节点知识图谱,对关键节点文献进行共被引分析,通过Citespace关键词聚类和膨胀词探测技术,绘制出商务智能研究热点和前沿知识图谱,确定商务智能的热点研究领域和前沿发展趋势。 相似文献
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基于TDA的情报学研究前沿知识图谱的绘制及分析 总被引：1，自引：0，他引：1
本文基于汤姆逊公司开发的工具TDA(德文特分析家),用科学知识图谱理论方法研究情报学1991-2007年间的研究前沿,绘制了情报学近20年的前沿图谱;并结合图谱分析了情报学近20年的研究前沿及其演变;最后结合前沿图谱的演变,预测了未来情报学的前沿方向. 相似文献
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对相关文献进行统计分析,运用科学文献数量的变化情况和关键词共引来分析相关领域的发展演进情况。通过CiteSpace可视化软件绘制有关XML研究领域的关键词共引网络图谱,并对图谱中的关键节点、XML研究领域的应用前沿及其演化进行分析。 相似文献
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跨语言信息检索的知识图谱研究 总被引：1，自引：0，他引：1
在ISI的WebofScience中以“跨语言信息检索”为主题进行检索,利用共引分析、共词分析、信息可视化等方法和技术,借助CiteSpace1I信息可视化软件绘制跨语言信息检索研究领域的文献共引网络图谱、热点词汇图谱以及前沿词汇图谱,直观地展示和分析不同时期跨语言信息检索领域的代表人物及代表文献,揭示其研究热点,探测其研究前沿及发展趋势。 相似文献
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本文以CSSCI数据库中2000-2010年数据作为统计源,借助科学知识图谱的可视化技术手段,对这10年间的文献数据进行计量研究,将数字图书馆研究领域相关引文数据和主题词数据进行处理和分析,绘制我国数字图书馆研究主要代表人物知识图谱,通过引文分析,研究数字图书馆研究领域的关键节点和前沿热点演进。 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