��ѧ��չ���׵����߼�������   总被引：14，自引：1，他引：13  

娄策群 《图书情报工作》1996,40(4):41-44

在分析文献著者职业结构与科学研究取向、年龄结构与学科发展潜力、地区结构与科学活动中心、新老结构与学科发展阶段、研究主题结构与当采学科 (主题 )、合著结构与科研复杂程度和学科综合程度的关系的基础上 ,提出了确定和预测科研活动及科学发展状况的文献著者计量指标  相似文献   

现代信息技术环境中的信息资源配置、开发与利用——专家咨询意见的调查与分析   总被引：12，自引：0，他引：12       下载免费PDF全文

娄策群  王菲 《中国图书馆学报》2001,27(2)

对专家的咨询调查表明 :现代信息技术环境中的馆藏信息资源 ,最重要的是应当突出资源特色 ;收藏信息的载体形式 ,高校馆、公共馆、科学馆和社科情报所 ,应以印刷型和光盘型为主 ,科技情报所、信息中心、咨询和企业情报机构 ,应以网络型和光盘型为主 ;信息资源开发的重点是经济信息和科学技术信息 ;应重点开发的资源形式是网络信息和文献信息 ;应进行信息资源的多层次开发 ,开发方式主要是建设数据库、实现一次文献的数字化和计算机信息分析。表 8。参考文献 3。  相似文献   

Get real about sex: the politics and practice of sex education,by Pam Alldred and Miriam E. David     

Mary Lou Rasmussen 《Gender and education》2009,21(4):475-477

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论美声唱法的"靠前"与"靠后"     

严露 《贵阳师范高等专科学校学报》2005,(3):71-73

美声唱法分为“靠前”与“靠后”两大学派。“靠前唱法”强调声音的明亮、靠前、打在硬口盖上．集中于面孔前部（鼻腔、面罩）部位；“靠后唱法”则强调声音的厚度、力度、喉腔开度大，音的立体柱状感及音的落点感受较深。它们有机结和点在于声音的明亮集中、圆润、丰满，两派是互补的辩证统一的。  相似文献   

Facile and efficient one-pot synthesis of 2-arylbenzoxazoles using hydrogen tetrachloroaurate as catalyst under oxygen atmosphere     

Yun-kui Liu  Da-jie Mao  Shao-jie Lou  Jian-qiang Qian  Zhen-yuan Xu 《Journal of Zhejiang University. Science. B》2009,10(6):472-478

In this paper, we presented a novel method for the facile and efficient one-pot synthesis of 2-arylbenzoxazoles, which oxygen atmosphere with anhydrous tetrahydrofuran (THF) as solvent or in solvent-free condition. The results show that this method could bring excellent yields as high as 96%. THF was proven to be the best choice among several solvents screened and the reaction was tolerated with a variety of aromatic aldehydes possessing electron-donating or withdrawing groups. The advantages of the present method lie in catalytic process using economic and environmentally benign dioxygen as oxidant.  相似文献   

一种平面四连杆机构轨迹综合的新方法     

楼进 《上海海事大学学报》1994,(4)

根据平面闭合曲线切线象理论，定义了切线全旋转角的概念，提出并论证了一种用曲线的曲率关于切线全旋转角的函数和进行平面四连杆机构轨迹综合的新方法。这是一种可应用于工程设计的几何系统分析法。  相似文献   

信息生态位理论探讨   总被引：22，自引：0，他引：22  

娄策群 《图书情报知识》2006,(5):23-27

在信息时代,人类的各项社会活动都与信息有关,信息生态位是人类社会活动最基本、最基础的生态位。本文借鉴生态学中的生物生态位原理,从理论上对信息生态位的内涵与外延、维度与宽度、重叠与分离、形成与变化等进行探讨。  相似文献   

政府电子信息存储中心的构建研究   总被引：2，自引：0，他引：2  

刘春年  娄策群 《现代图书情报技术》2004,20(3):54-67

政府电子信息储存中心是保留与储存政府重要电子信息，实现政府电子信息处理的全程监控、在线自动捕捉与索引、迁移与处置证明等服务的重要信息机构。本文主要探讨了这种信息机构构建的必要性、可实现的功能、构建过程中需要克服的障碍及搭建过程中设备、人员、资金等的选择与配置问题。  相似文献   

Enhancing Research Impact in Heritage Conservation     

Theocharis Katrakazis  Cath Dillon  Petra Juvan  Stavroula Golfomitsou 《文物保护研究》2018,63(8):450-465

This paper examines how research impact is defined, measured, and generated – with a view to understanding how it can be enhanced within heritage conservation. It examines what is meant by ‘impact’ and how it can be promoted within heritage science through effective inter-disciplinary collaboration. Following a general examination of the current discourse concerning research impact, the study examined: (i) active research networks within heritage science; (ii) research planning and evaluation practices within heritage science; and (iii) the experiences of users (i.e. conservators and other heritage professionals) within research collaborations. Terminologies surrounding the notion of impact and the various phases of the research process were reviewed – from the initial identification of a knowledge gap to the eventual application of new findings in practice. Next, the reach and diversity of research collaborations (as identified through publication co-authorship) were studied to characterise the inter-disciplinary nature of heritage science and its connectedness to users. Findings showed substantial growth in international research collaborations over recent years, predominantly involving academic- and research-oriented institutions – although the engagement of heritage institutions has proportionally decreased. In addition, a worldwide survey of institutional planning and evaluation practices revealed a general reliance on processes driven by the interests of researchers – the systematic consideration of stakeholder opinion and evaluation of research outcomes being less common. Finally, a series of semi-structured interviews with senior heritage professionals explored their experience of collaborative research. The results identified key areas where strategic support is needed to promote user participation and enhance impact. These include training for research readiness, engagement, and impact for both researchers and users; better methods for needs and outcome assessment; affordable open access options and greater diversity of knowledge exchange opportunities. Finally, the need for ethical guidelines for responsible research, and greater emphasis on non-academic impact within research rating systems are discussed.  相似文献   

Coming Clean about Cleaning. Professional and Public Perspectives: Are Conservators Truthful and Visitors Useful in Decision-making?     

Katy Lithgow  Stavroula Golfomitsou  Catherine Dillon 《文物保护研究》2018,63(5):392-396

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