[目的/意义]研究论文平均引用时差与其被引频次之间是否具有相关性。[方法/过程]从Web of Science收集JASIST和Scientometrics两种期刊1997年到对2016年的论文信息,对每篇论文的平均引用时差与其总被引频次进行相关性分析。还分析了论...[目的/意义]研究论文平均引用时差与其被引频次之间是否具有相关性。[方法/过程]从Web of Science收集JASIST和Scientometrics两种期刊1997年到对2016年的论文信息,对每篇论文的平均引用时差与其总被引频次进行相关性分析。还分析了论文合作、论文参考文献数量与论文平均引用时差、总被引频次之间的关系。[结果/结论]研究发现:两种期刊的论文平均引用时差与被引频次之间呈现为负相关关系。即论文平均引用时差越长,其总被引频次越少。论文合作和论文参考文献数量对论文被引频次、论文平均引用时差都有一定的影响。展开更多
This paper briefly introduces the Seismotectonic Map of Xinjiang and its neighborhood in the scale of 1∶2500000.The map is amended,supplemented and expanded based of the newly compiled Seismotectonic Map of Xinjiang ...This paper briefly introduces the Seismotectonic Map of Xinjiang and its neighborhood in the scale of 1∶2500000.The map is amended,supplemented and expanded based of the newly compiled Seismotectonic Map of Xinjiang in scale 1∶1000000.The base map of this seismotectonic map is the geologic map of western China and its neighborhood compiled by Li Tingdong.The abundant new materials from related research,referential literatures and the analyses on remote sensing data were used in the compiling work.A database and relevant documents are built for nearly 300 active faults and 150 active folds.The basic information of the major active faults,especially those near the border areas in this map are introduced in this paper.展开更多
文摘[目的/意义]研究论文平均引用时差与其被引频次之间是否具有相关性。[方法/过程]从Web of Science收集JASIST和Scientometrics两种期刊1997年到对2016年的论文信息,对每篇论文的平均引用时差与其总被引频次进行相关性分析。还分析了论文合作、论文参考文献数量与论文平均引用时差、总被引频次之间的关系。[结果/结论]研究发现:两种期刊的论文平均引用时差与被引频次之间呈现为负相关关系。即论文平均引用时差越长,其总被引频次越少。论文合作和论文参考文献数量对论文被引频次、论文平均引用时差都有一定的影响。
基金Funded by the State Special Project for International Cooperation on Science and Technology(2012DFR20440K02)the 973 Program(2008CB4257)
文摘This paper briefly introduces the Seismotectonic Map of Xinjiang and its neighborhood in the scale of 1∶2500000.The map is amended,supplemented and expanded based of the newly compiled Seismotectonic Map of Xinjiang in scale 1∶1000000.The base map of this seismotectonic map is the geologic map of western China and its neighborhood compiled by Li Tingdong.The abundant new materials from related research,referential literatures and the analyses on remote sensing data were used in the compiling work.A database and relevant documents are built for nearly 300 active faults and 150 active folds.The basic information of the major active faults,especially those near the border areas in this map are introduced in this paper.
