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81.
82.
基于SCI对我国林业高校科研水平的分析及评价 总被引:1,自引:0,他引:1
以美国ISI公司的Web of scienee网络数据库收录的论文数据为依据,采用文献计量、数值比较和按类统计分析的方法.从学科分布、合作单位、论文语种及被引情况等,对我国6所林业高校1980—2005年间的科技论文被收录情况进行统计分析,为客观了解我国林业高校的总体学术地位,评价我国林业高校的科研绩效、学科发展水平和未来发展趋势提供参考依据。 相似文献
83.
辽宁省滨海湿地资源类型及景观格局分析 总被引:6,自引:2,他引:6
基于遥感、GIS技术和野外调查,采用景观生态学研究法,对辽宁省滨海湿地资源类型与景观格局进行了研究。结果表明:①辽宁省滨海湿地总面积为17 331.72km2,其中浅海水域和陆域湿地分别为56.78%和43.22%,自然湿地和人工湿地分别为73.03%和26.97%;②辽宁省滨海湿地中有河口淤泥质海岸湿地9 987.44km2,占全省滨海湿地总面积的57.63%,集中分布在辽东湾顶部西崴子至小凌河口岸段和鸭绿江口至英那河口岸段,两岸段的湿地景观多样性指数分别为1.50和0.98;基岩淤泥质海岸湿地2 639.76km2,占15.23%,湿地景观多样性指数为0.59~1.07;砂砾质海岸湿地2 377.83km2,占13.72%,湿地景观多样性指数为0.51~0.99;基岩质海岸湿地2 190.16km2,占12.64%,湿地景观多样性指数为0.88;岛礁型基岩海岸湿地136.54km2,占0.79%,湿地景观多样性指数为0.66。 相似文献
84.
在知识计量学的思想基础上提出科技发展种群规律的动力模型,从模型中推导出普赖斯指数增长规律。利用中国若干省市的实际数据,从专利增长的动力模型和论文增长的动力模型两个方面,进一步深化和证实科技发展的种群规律的存在;并利用动力模型对区域创新体系建设的若干重要问题进行了讨论。 相似文献
85.
基于对体育学术期刊的关注,以<西安体育学院学报>近10年所刊载的论文为对象,采用科学计量学、文献计量学方法对该刊的作者群体与所载论文的诸项指标进行了全面计量与深入分析,描述了近年来该期刊发展的若干特征,试图为该期刊的进一步发展与提升提供支撑和参考. 相似文献
86.
Jörn H.B. Lengsfeld 《The Information Society》2013,29(3):141-157
Introducing an econometric approach to quantify the digital divide, this article presents a new method to facilitate crossnational and in-depth sectional analyses of the digital divide within a consistent framework. It examines the sociodemographic topology of the digital divide in an extensive crossnational analysis covering six sociodemographic factors and twenty-five countries. The findings contradict in part the conclusions of previous research. Although there are differences between the social groups, not all of the tested segmentation factors mark major fault lines of the digital divide. The notions of a gender gap, an income divide, and a divide between urban and rural areas are rejected because between-group disparity proves to be only minor in comparison to overall inequality. However, education, age, and main vocational activity do indeed mark digital boundaries in many of the observed countries. 相似文献
87.
《Information processing & management》2023,60(1):103156
Hiring appropriate editors, chairs and committee members for academic journals and conferences is challenging. It requires a targeted search for high profile scholars who are active in the field as well as in the publication venue. Many author-level metrics have been employed for this task, such as the h-index, PageRank and their variants. However, these metrics are global measures which evaluate authors’ productivity and impact without differentiating the publication venues. From the perspective of a venue, it is also important to have a localised metric which can specifically indicate the significance of academic authors for the particular venue. In this paper, we propose a relevance-based author ranking algorithm to measure the significance of authors to individual venues. Specifically, we develop a co-authorship network considering the author-venue relationship which integrates the statistical relevance of authors to individual venues. The RelRank, an improved PageRank algorithm embedding author relevance, is then proposed to rank authors for each venue. Extensive experiments are carried out to analyse the proposed RelRank in comparison with classic author-level metrics on three datasets of different research domains. We also evaluate the effectiveness of the RelRank and comparison metrics in recommending editorial boards of three venues using test data. Results demonstrate that the RelRank is able to identify not only the high profile scholars but also those who are particularly significant for individual venues. 相似文献
88.
Gary Osmond 《国际体育史杂志》2017,34(5-6):427-431
AbstractThis article reflects on my serendipitous encounter with, and subsequent career in, sports history, and ponders on the career impacts of the changing institutional and structural contexts in which academic sports historians work. 相似文献
89.
就UML类图质量模型和软件度量方法进行研究,基于传统的CK度量集,设计并实现了基于UML类图的软件度量工具JCKMT.通过对UML类图进行度量分析,实现软件开发过程控制,为软件开发人员客观地分析、评估软件的设计、生产和使用状况提供了支持. 相似文献