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2000,2004和2008年版综合性科学技术类核心期刊数量分别为56,88和120种。2004年版与2000年版相比,新增39种,转到其他学科5种,出局2种;2008年版与2004年版相比,新增27种,由其他学科转入9种,转到其他学科1种,出局3种。总体上看,2004年出局的2种期刊于2008年重返该表,实际净出局了3种期刊。各版核心期刊位次变化较大,振幅在±16以内的期刊有49种,排序增幅大于16的期刊有12种,排序退步16以上的期刊有26种,且多数处于2008年版该类核心期刊表的后半区。中国科学引文数据库来源刊(CSCD)是遴选核心期刊的主要影响因素,只要是CSCD来源刊的学报全部进入综合性科学技术类核心期刊。建议在今后的核心期刊遴选中,进一步考虑期刊自引成分的干扰。
The total number of core science journals in 2000, 2004 and 2008 were 56, 88 and 120 respectively. Compared with the 2000 edition, the 2004 edition added 39 species and transferred them to other 5 disciplines, leaving 2 species. Compared with the 2004 edition, 27 species were added from the 2008 edition to 9 varieties from other disciplines and transferred to other disciplines 1 Kinds of species, out of 3 species. Overall, the two journals that were withdrawn in 2004 returned to the list in 2008, with three journals actually net out. There are 49 journals with amplitudes within ± 16, 12 journals with an increase of more than 16, 26 journals with a ranking of more than 16, and most of them are in the 2008 edition of this core journals The second half of the table. CSCD is the main factor influencing the selection of core journals, as long as all the journals of CSCD source have entered the core journals of comprehensive science and technology. Proposed in the future selection of core journals, to further consider the journals of self-cited interference.