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61.
Zahiruddin Khurshid 《期刊图书馆员》2013,64(1):81-98
This research study evaluates the quality of articles published by Saudi and expatriate authors in foreign Library and Information Science (LIS) journals using three popular metrics for ranking journals—Journal Impact Factor (JIF), SCImago Journal Rank (SJR), and Google Scholar Metrics (GSM). The reason for using multiple metrics is to see how closely or differently journals are ranked by the three different methods of citation analysis. However, the 2012 JIF list of journals is too small, almost half the size of the SJR and GSM lists, which inhibited one-to-one comparison among the impact factors of the thirty-six journals selected by Saudi authors for publishing articles. Only seventeen journals were found common to all the three lists, limiting the usefulness of the data. A basic problem is that Saudi LIS authors generally lack the level of competency in the English language required to achieve publication in the most prominent LIS journals. The study will have implications for authors, directors, and deans of all types of academic libraries; chairmen and deans of library schools; and the Saudi Library Association. Hopefully these entities will take necessary steps to prepare and motivate both academics and practicing librarians to improve the quality of their research and publications and thus get published in higher ranked journals. 相似文献
62.
孟迟是位不可忘却的唐才子。由于历史的时代风雨和文献记载的空阙,以致出现其字及籍贯混淆、《全唐诗》所录其诗中多于他人诗重出等现象。本文于广集资料基础上,对其籍贯与字予以驳正;对其功名取得过程,予以梭理;对其仕途官职,力尽寻觅;对其部分诗章名篇,予以逐一赏析。努力勾勒出他的原本面貌与文化价值,试图通过其闪亮价值,为建设中国特色社会主义先进文化做出贡献。 相似文献
63.
图书馆人力资源级差管理研究 总被引：16，自引：0，他引：16
图书馆人力资源建设的现代化是图书馆现代化的重要组成部分,在人力资源开发管理中,应承认人力资源中知识、技能级差的存在,并与岗位设置中的级差结合起来,以实现图书馆发展资源的动态最佳配置。 相似文献
64.
设P为秩为r的矩阵,而A,B皆为方阵,它们的特征多项式分别为fA(λ)和fB(λ),若满足AP=PB,则有fB(λ)满足fA(λ)。本文进一步就P的不同情况进行讨论,得到矩阵特征多项式对应的其他性质。 相似文献
65.
赵新 《安阳师范学院学报》2002,(3):88-89
本文通过对目前高校图书馆工作人员队伍不稳定这一现状的分析，指出了引起这一现象的原因，提出了稳定高校图书馆工作人员的措施与建议。 相似文献
66.
The objective assessment of the prestige of an academic institution is a difficult and hotly debated task. In the last few years, different types of university rankings have been proposed to quantify it, yet the debate on what rankings are exactly measuring is enduring.To address the issue we have measured a quantitative and reliable proxy of the academic reputation of a given institution and compared our findings with well-established impact indicators and academic rankings. Specifically, we study citation patterns among universities in five different Web of Science Subject Categories and use the PageRank algorithm on the five resulting citation networks. The rationale behind our work is that scientific citations are driven by the reputation of the reference so that the PageRank algorithm is expected to yield a rank which reflects the reputation of an academic institution in a specific field. Given the volume of the data analysed, our findings are statistically sound and less prone to bias, than, for instance, ad–hoc surveys often employed by ranking bodies in order to attain similar outcomes. The approach proposed in our paper may contribute to enhance ranking methodologies, by reconciling the qualitative evaluation of academic prestige with its quantitative measurements via publication impact. 相似文献
67.
INTRODUCTION During the last decade there has been an in-terest in the Banach space geometry of non-selfadjoint operator algebras. Subjects of investigationthere include the extreme point structure of the unitball (Hudson et al., 1997; Moore and Trent, 1987)and the isometries between such algebras (Arazyand Solel, 1990; Kadison, 1951; Moore and Trent,1989). One possible application of a characteriza-tion of extreme points is in the study of isometries.Kadison (1951) used the char… 相似文献
68.
何梅芝 《湖南科技学院学报》2006,27(11):60-62
设G_1和G_2分别是n阶与m阶顶点互不相邻的简单图,G_1G_2称为G_1与G_2的冠,是通过将G_2复制n个后,把G_1的第i-个顶点与G2的第i-复制的每一个顶点相连而得到的图。本文讨论了一些特殊图类的冠的邻接矩阵的秩,主要是当G2为完全图,完全二部图,Petersens图和CP(k)时两个图的冠。 相似文献
69.
幂零矩阵是矩阵理论中一类特殊的矩阵,它具有良好的性质和实际应用.文章证明了n阶k-幂零矩阵秩的取值范围,并给出两种表示方法.同时得到当k整除于n时最大秩的Jordan规范型是唯一的. 相似文献
70.
水文序列变异的差积曲线－秩检验联合识别法在闽江流域的应用 总被引：5，自引：1，他引：5
针对水文序列变异点初步识别时常用的统计方法假设较多、公式复杂及运算繁琐等方面的不足,本文提出通过差积曲线进行变异点的初步识别,并应用秩检验法进行精确识别的差积曲线-秩检验联合识别法,以闽江流域竹岐站1936年～2004年近70年径流序列为例应用该方法进行变异点的识别,研究结果表明:闽江竹岐站年径流序列的变异点在1954年,变异前后的均值分别为1967m3/s、1653m3/s,Gv值分别是0.16和0.24.变化非常明显.在此基础上,从气候变化等自然条件和人类活动两方面分析变异点的物理成因,显示区域降雨、气温等气候变化和森林植被的破坏等人类活动导致了该径流序列在1954年发生变异.该识别方法只需少许假设,方法相对简单、方便且比较直观. 相似文献