Thus, a first quartile journal (i.e., q1) has an sjr in the top 25% of journals for. Sci mago是期刊文献计量指标。全名scimago journal rank。不是sci。 sjr的全称是scimago journal rank（scimago期刊排名），是基于引文来源信息对期刊进行排名的文献计量指标。. The scimago journal rank (sjr) only considers documents published in the journal in the last three years, and weights them depending on the prestige of the journals the citing papers were.
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I previously posted details about how journal ranks and quartiles are estimated on scimago. Presumably, when you say sjr quartiles, you mean the rankings presented by scimago. The sjr score is also a weighted score, which takes journal prestige into account, and this is not the case for the impact factor.
Q1 to q4 refer to journal ranking quartiles within a subdiscipline using the sjr citation index.
Cnki.net 关于期刊分区 目前期刊分区主要有jcr（journal citation report）分区、中科院分区和sjr（scimago journal ranking）分区；前两者应用更广泛，我们一般谈到的分.
