首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到10条相似文献,搜索用时 125 毫秒
1.
The structure and infrastructure of the Indian research literature were determined. A representative database of technical articles was extracted from the Science Citation Index/Social Science Citation Index (SCI/SSCI) [SCI. Certain data included herein are derived from the Science Citation Index/Social Science Citation Index prepared by the THOMSON SCIENTIFIC®, Inc. (Thomson®), Philadelphia, Pennsylvania, USA: ©Copyright THOMSON SCIENTIFIC® 2006. All rights reserved. [1]] for 2005, with each article containing at least one author with an India address. Document clustering was used to identify the main technical themes (core competencies) of Indian research. Aggregate India bibliometrics were also performed, emphasizing the value of collaborative research to India. A unique mapping approach was used to identify networks of organizations that published together, networks of organizations with common technical interests, and especially those organizations with common technical interests that did not co-publish extensively. Finally, trend analyses were performed using other year data from the SCI/SSCI to place the 2005 results in their proper historical context.  相似文献   

2.
The structure and infrastructure of Mexico's science and technology   总被引:1,自引:0,他引:1  
The structure and infrastructure of the Mexican technical literature was determined. A representative database of technical articles was extracted from the Science Citation Index for the year 2002, with each article containing at least one author with a Mexican address. Many different manual and statistical clustering methods were used to identify the structure of the technical literature (especially the science and technology core competencies). One of the pervasive technical topics identified from the clustering, thin films research, was analyzed further using bibliometrics, in order to identify the infrastructure of this technology.  相似文献   

3.
区域生态风险研究兴起于20世纪80年代,对科学引文索引数据库生态风险研究相关的2 347篇文献进行分析,从文献类型、出版年份、所属国家或地区、学科类别、发表作者和研究热点进行分析,简要描述国内的研究现状,基于国内外的相关研究,提出区域生态风险管理的研究展望。  相似文献   

4.
The structure and infrastructure of the Finnish research literature is determined. A representative database of technical articles was extracted from the Science Citation Index for the years 2003–2004, with each article containing at least one author with a Finnish address. Document clustering was used to identify the main technical themes (core competencies) of Finnish research. Four of the pervasive technical topics identified from the clustering (Wireless Networks and Mobile Communication, Signal Processing, Materials Science and Engineering, Chemistry) were analyzed further using bibliometrics, in order to identify the infrastructure of these research areas. Finally, the citation performance of Finnish research in the four pervasive technical topics above, and in other technical topics obtained by analysis of Abstract phrases, was compared to that of two Scandanavian countries with similar population and GDP, Norway and Denmark.  相似文献   

5.
The structure and infrastructure of the Finnish research literature is determined. A representative database of technical articles was extracted from the Science Citation Index for the years 2003-2004, with each article containing at least one author with a Finnish address. Document clustering was used to identify the main technical themes (core competencies) of Finnish research. Four of the pervasive technical topics identified from the clustering (Wireless Networks and Mobile Communication, Signal Processing, Materials Science and Engineering, Chemistry) were analyzed further using bibliometrics, in order to identify the infrastructure of these research areas. Finally, the citation performance of Finnish research in the four pervasive technical topics above, and in other technical topics obtained by analysis of Abstract phrases, was compared to that of two Scandanavian countries with similar population and GDP, Norway and Denmark.  相似文献   

6.
技术创新研究在中国   总被引:2,自引:0,他引:2       下载免费PDF全文
通过对中国期刊全文数据库(经济和管理类核心期刊)、中文社会科学引文索引(CSSCI)和社会科学引文索引(SSCI)等数据库进行检索并对所得数据进行分析,展示了技术创新研究在中国大陆的发展状况。根据文献发表情况,将技术创新在中国大陆的研究划分为创新理论的消化(1989—1992年)、创新理论的本土应用(1993—2000年)和创新研究的拓展与再创新(2001年及之后)3个阶段,并对3个阶段的研究特点、研究方向的发展变化、研究工作与中国经济发展的相互作用等进行了较为细致的分析。最后,对今后技术创新研究在中国的发展趋势进行了推测。  相似文献   

7.
中美学科领域基金资助特征及其与科研产出互动效应研究   总被引:1,自引:0,他引:1  
全面比较中美两国重点学科领域基金资助差异及其与科研产出的动态交互效应,可为我国制定科学合理的学科发展规划提供有益启示。以中美两国2009—2018年在SCI发表的545万篇学术论文为研究对象,系统梳理178个SCI学科基金资助幅度及增幅表现,构建PVAR模型,运用格兰杰因果检验和脉冲响应函数分析法,探究中美基金资助幅度与科研产出之间的互动效应,以及该效应在不同学科领域之间的差异。总体来看,中美两国在学科重点资助方向上存在显著差异:中国更重视生命与地球科学,美国则更重视医药领域。在资助增幅排名上,工程和计算机科学在中美两国均呈上升态势。从基金资助幅度与科研产出之间的互动效应看,两者存在单向格兰杰因果关系,即基金资助幅度是科研产出的格兰杰原因。中国工程领域基金资助幅度对科研产出具有显著正向影响,美国在计算机科学领域这一影响效应最为显著。  相似文献   

8.
为了解国内PPP领域的研究现状和发展趋势,以CNKI数据库(2000-2015)收录的相关期刊论文为数据来源,运用SATI3.2和UCINET6.0软件,针对期刊、作者、机构和关键词字段进行文献计量和可视化分析,着重对关键词进行了社会网络分析、聚类分析和多维尺度分析。通过上述研究,得到了反映该领域研究的知识图谱,并由此发现该领域的主流期刊、高水平机构、代表性学者、知识特征和研究趋势。  相似文献   

9.
This Research Note updates our 2006 and 2009 China/USA nanotechnology and nanoscience (NN) research output comparisons.A 2009 comparison of China/USA research publication outputs showed that China is about to overtake the USA in NN research output. As predicted by the extrapolated 2009 curve, China has passed USA in NN research publication output. This transition occurred in the 2008/2009 time frame, and if the 2011 results (taken at mid-2011) hold for the full year, will become quite pronounced (~ 20%).When specific sub-disciplines are examined, the differences between China and USA become more pronounced. For example, the 2009 paper presented the time trend for China/USA publications in nanocomposites, an important sub-discipline of NN. The updated nanocomposites curve has increased about twice the rate of the overall NN curve, and shows no sign of abating.The USA papers lead in the numbers of citations by all metrics considered, but the Chinese papers are showing significant improvement with time. Overall, the Chinese papers are cited very modestly, but there is a core of 'heavy hitters' that appears to be increasing substantially with time, and is increasingly making its presence known in the higher Impact Factor journals.  相似文献   

10.
Research in the field of financial crisis has generated a considerable amount of literature in the past, yet there has neither been any study to assess the contributions to the literature made by individuals or institutions, nor any to measure the impact of the articles and researchers. This study represents an attempt to: (1) investigate the major journals in publishing financial crisis research, (2) assess the contributions of individual researchers and institutions using the credited contribution approach and (3) measure the impact of individual publications and individual researchers on the financial crisis literature through citation analysis, based on the publications in Social Science Citation Index (SSCI) journals from 1990 to 2008. The findings provide a useful benchmark for assessing individual and institutional research productivity, and trends for future research and venues for publications are identified.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号