共查询到20条相似文献，搜索用时 62 毫秒
1.
以中国学术期刊网络出版总库（简称CAJD）作为数据来源,检索并经数据清洗后的1 423篇发表于2011-2015年的图书馆评价研究文献作为研究对象。运用文献计量分析方法和VOSviewer可视化分析软件,对国内近五年图书馆评价研究领域的发展阶段、重要期刊情报源、高产研究机构、主要研究主题及其热点进行分析。结果表明,近五年国内对图书馆评价的研究整体上表现出较为平稳的研究态势,图书馆学与情报学是国内图书馆评价研究的主要输出学科。图书馆评价理论及图书馆服务质量与网站评价、高校图书馆评价是近五年国内图书馆评价研究领域热点主题。 相似文献
2.
《内蒙古科技与经济》2016,(16)
以Web of Science收录的2 360篇医学信息学文献为研究对象,利用文献计量方法分析医学信息学文献的年度分布、主要刊发期刊或会议、主要发表国家和机构[1];利用CiteSpace对医学信息学文献进行共被引文献、共被引作者和共被引期刊分析,研究医学信息学研究的前沿方向和研究热点,归纳国际医学信息学研究的特征。 相似文献
3.
大数据时代背景下,个性化服务研究在各领域都备受关注,以图书情报领域为例,分析近10年图书情报领域个性化服务研究的热点及演化趋势,为该领域进一步研究提供参考。以中国知网CNKI中2009-2018年收录的个性化服务研究期刊文献为研究对象,采用文献计量方法,借助SATI、Citespace分析工具,对国内个性化服务研究现状、研究热点、演化趋势进行可视化分析。综合分析,我国近10年图书情报领域个性化服务研究热点的主题集中在3个方面:图书馆个性化服务、图书馆服务技术应用和个性化服务内容,研究演化过程主要分为2009-2012年和2013-2018年两个阶段。 相似文献
4.
【目的/意义】对图书馆领域微信服务的研究现状分析,可以了解到国内目前图书馆的数字化服务现状,对 提高图书馆的服务水平有重要意义。【方法/过程】以CSSCI来源期刊（2019-2020）目录收录的相关数据为研究对 象,分析了其中图书馆、情报与文献学领域的20本期刊,研究了这些期刊从2011年至2018年来,在图书馆微信服务 领域的163篇文献。采用文献计量学方法,以R软件和VOSviewer为技术手段,研究该领域文献的分布,主要包括 合作网络和主题分布。【结果/结论】通过共现分析和作者共现建立了研究图谱,从两个维度识别出了该领域的研究 热点,研究结果可用于相关学者了解该问题的研究现状。 相似文献
5.
以国际权威期刊《知识组织》1993～2008年所发表与知识组织有关的215篇学术论文为研究对象,对论文的主题进行梳理,得到国外在该领域的热点主题;并试图通过对这些热点主题的分析,找出该领域研究的一些规律,从而为国内相关研究提供参考。 相似文献
6.
[目的/意义]梳理近年来国际上医学信息学研究动态和发展趋势,为科研人员提供相关的文献信息,为科研课题的选择及信息研究提供有力的依据,为我国未来医学信息学发展提供建议。[方法/过程]以Web of Science中10种医学信息学核心期刊近十年的文献为信息源,利用BICOMB、TDA、SPSS、UCINET等统计分析工具,并结合文献计量方法,对检索出来的文献数量、国家、机构、核心作者、关键词等进行统计并可视化分析。[结果/结论]2008-2017年Web of Science数据库中十种医学信息学核心期刊总收录相关文献11 823篇,文献量逐年持续增长,美国在该方面的研究处于领导地位,哈佛大学在该领域的研究产出占比最高,核心作者之间联系密切,形成一定规模的小团体。研究发现,近十年国际医学信息学研究重点体现在4个方面：卫生信息系统的开发与管理,卫生信息分析方法的对象与实际应用,人工智能、数据挖掘技术在临床诊疗中的应用与挑战及医学信息学新技术的应用与发展。 相似文献
7.
詹文海 《中国科技期刊研究》2024,(2):226-234
【目的】从精准把握先进无机材料领域在国内外主流数据库的研究热点出发,为期刊决策提供依据,探索一条新形势下“破局”的办刊途径。【方法】利用国际数据库平台Web of Science (WoS)、国内数据库平台中国知网和万方数据库,调研2019—2020年材料综合类期刊被引频次排名前200的科技论文。从论文类型、材料种类、制备技术、应用领域、研究方向5个维度赋予标签,统计分析国内外数据库先进无机材料的共同研究热点。【结果】归纳出国内外数据库的共同研究热点,得出5个热点材料种类、12个热点研究方向和1个热点材料制备技术。相比于WoS平台,国内数据库的热点更加分散,并且高被引论文的研究内容更倾向于传统方向;在前沿领域,国内科研人员的成果被国外期刊大量分流。【结论】中文科技期刊应该牢牢抓住海内外华人科学家科研水平迅速提高的契机,优化选题方向,加大对热点领域原创性研究成果的组约稿力度,提高期刊学术质量,同时增强竞争意识,积极开拓海外宣传推广平台,扩大国内外影响力。 相似文献
8.
借助知识图谱的最新可视化技术,基于共引分析理论和寻径网络算法,把科学计量学与数学、计算机图形学结合,以Web of Science中2011—2015年有关技术创新的11 997篇文献为研究对象,利用可视化软件CiteSpace Ⅲ,对核心期刊、重要作者、重要文献、研究热点作分析,绘制出近5年国际技术创新领域的知识图谱,总结展示国际技术创新领域近5年的发展态势和研究热点。通过探索分析,总结当今国际技术创新研究的五大热点领域:知识搜索、绿色技术、一般创新研究、市场前景和新技术的产生。最后,对研究结果进行讨论总结和展望。 相似文献
9.
【目的/意义】为了解国内外大数据领域的研究情况,发现国际和国内大数据领域在研究趋势和研究热点上
的异同,预测国内外大数据领域的研究动态。【方法/过程】利用文献计量学方法和知识图谱的可视化方法,针对SCI
和SSCI数据库和CNKI数据库中大数据领域从2012年至2016年共5年的期刊论文,分别从时间序列及被引频次分
布、国家/地区文献分布、学科和期刊分布、高产作者和研究机构分布、研究热点和研究趋势等几个方面进行定量统
计和定性分析。【结果/结论】大数据领域已经成为学术界关注的一个研究热点,大数据领域的研究目前仍处于萌芽
时期和发展时期,大数据与物联网、云计算的结合应用将成为未来的研究热点和研究趋势。 相似文献
10.
运用Citespace对2002-2010年图书信息学科50种核心期刊题录数据进行可视化分析,揭示出图书信息学科研究的10个子领域、代表研究热点的20个主题词、代表研究前沿的6个主题词,通过将数据划分为三个阶段并分析每个阶段内各年研究热点的变化,总结出图书信息学科研究特点. 相似文献
11.
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
12.
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
13.
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
14.
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
15.
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
16.
Milton Mueller 《The Information Society》2001,17(3):151-163
Long-standing conflict between domain name registrants and trademark holders prompted the Internet Corporation for Assigned Names and Numbers (ICANN) to create a global, mandatory arbitration procedure known as the Uniform Dispute Resolution Policy (UDRP). The UDRP has been used in 2166 cases involving 3938 domain names as of 1 November 2000. The policy gives the initiator of a complaint, generally a trademark holder, the right to choose which ICANN-accredited dispute resolution service provider (RSP) will handle the case. During the preparation of the UDRP,some feared that complainant selection would lead to "forum shopping" that might bias the results. This article performs a statistical assessment of the forum-shopping thesis and finds support for it. There are statistically significant differences in the various RSPs' propensity to take away names from defendants; there are also major differences in the number of cases brought to each RSP. RSPs who take away names have the larger share of cases. The study examines other variables that might explain differences in market share, such as price, the plaintiff's nationality, or the time taken to decide a case. It finds that nationality and time also are correlated with market share. The study concludes that shopping for a favorable outcome is an important factor in the UDRP. 相似文献
17.
Prof. Raymond C.K. Chen a neuropsychologist with the CAS Institute of Psychology has made novel progress in his studies of schizophrenia. His work has been reported by a recent issue of Behavioural Neurology.…… 《中国科学院院刊(英文版)》2008,22(1):15-15
Prof. Raymond C.K. Chen, a neuropsychologist with the CAS Institute of Psychology, has made novel progress in his studies of schizophrenia. His work has been reported by a recent issue of Behavioural Neurology. 相似文献
18.
《中国科学院院刊(英文版)》2014,(3)
<正>In Xishuangbanna,one of China’s most biodiverse regions,landscape has changed dramatically during the past three decades due to the conversion of tropical rainforest to rubber plantations.In steep areas,terraces are often constructed before planting rubber trees,which causes two important changes in the soil:the destabilization of soil in the bench terraces and the increased vulnerability of unvegetated riser faces to erosion.Few studies have documented the nature and intensity of erosion on bench terraces.Prof.LIU Wenjie and his colleagues from the Xishuangbanna Tropical Botanical Garden(XTBG)conducted a study in Menglun County(21°5′39″N,101°15′55″E),Xishuangbanna to evaluate the influence 相似文献
19.
Chinese Scientists Use Earth Observation Technologies to Study and Protect Wild Camels 总被引：1，自引：0，他引：1
《中国科学院院刊(英文版)》2014,(3):267-268
<正>Chinese scientists plan to apply Earth Observation technologies to protect the critically endangered wild camels(Camelus ferus).With the help of remote sensing,satellite positioning,geographical information system and wireless sensors networks,they will be able to access the distribution and population of the wild camels and protect their habitats.The project will be carried out by the International Research Center for Wild Camel Conservation,which was jointly established earlier this year by the Institute of Remote Sensing and Digital Earth(RADI)of the Chinese 相似文献
20.
WANG Sijia 《中国科学院院刊(英文版)》2014,(2):192-194
<正>The Paul Gerson Unna Research Group on Dermatogenomics was founded in October 2012 at the Partner Institute for Computational Biology.The ultimate goal of the group is to understand the biology of skin and skin appendages. 相似文献