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《晶体学报E辑》(Acta Crystallographica Section E Structure Reports Online)特点
根据SCImago Research Group2009年12月10日公布的1.7万余种期刊的各项评价指标,发现备受我国大陆作者青睐的《晶体学报E辑》(Acta Crystallographica Section E Structure Reports Online)具有以下五大特点(另外5大特点是自己总结的,不妥之处请批评指正。):
1 SJR有逐年下滑之势
尽管被引文献次数逐年增加,但是篇均被引次数和SJR(类似于期刊影响因子IF,但是又不同于IF)有逐年下滑之势。但是,2010年之后有所提升。 The SJR indicator measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is. Cites per Doc. (2y) measures the scientific impact of an average article published in the journal, it is computed using the same formula that journal impact factor ™ (Thomson Reuters).
2. 自引在50%左右
Evolution of the total number of citations and journal's self-citations received by a journal's published documents during the three previous years. Evolution of the number of total cites per document and external cites per document (i.e. journal self-citations removed) received by a journal's published documents during the three previous years.
3 2006年以来多年篇均被引次数几乎直线下滑
2008年以来,几乎没有多大变化。
Evolution of Citations per Document to a journal's published documents during the two, three and four previous years. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.
4 国际合作程度在19%左右
2004~2008年之间国际合作程度在19%左右,但是2008年之后,国际合作程度有所提高,到2012年达到30.28%,是10年来最高的。
International Collaboration accounts for the articles that have been produced by researchers from several countries. The chart shows the ratio of a journal's documents signed by researchers from more than one country.
5 三年之内有70%左右的文献无人问津
2001~2007年之间三年之内无人问津的文献数量在不断上升,最高达到76.77%;之后一直维持在77%左右。
Ratio of a journal's items, grouped in three years windows, that have been cited at least once vs. those not cited during the following year.
6 特征因子逐年升,论文影响逐年降
2003-2008年之间特征因子分值(EF)逐年上升,但是篇均论文影响分值(AI)却逐年下降。
7 中国作者的贡献最大,供稿单位最多,超过百家的四国比较见下表。
8 有关中国的差错多,中国作者论文中出现的差错举例见下表。
9 中国高校参与多,400余所高校分布29省市自治区。
10 中国作者造假多,(见井冈山大学论文造假等相关报道)
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