The concept of the second area article is the article published in the second area journal of SCI.

As we all know, the division of SCI journals is mainly based on the influence factors of publications. Both Chinese Academy of Sciences and JCR II are journals with high impact factors and high academic value.

The index of periodicals in the second district is second only to that in the first district, so many fields in China require more and more SCI papers to be published in periodicals in the second district and above, so the status and role of periodicals in the second district are obvious.

? Introduction to SCI:

Scientific citation index (SCI) is one of the most famous retrieval publications in the world, and it is also an important tool of bibliometrics and scientometrics. Through the citation retrieval function, you can find the early, then and recent academic documents of related research topics, and at the same time get the abstracts of papers; You can see the records of cited references, the cited situation and the records of related documents.

Scientific citation index is based on Bradford's theory of document dispersion law and Garfield's theory of citation analysis. It evaluates and studies academic journals and scientific research achievements in many aspects by counting the frequency of cited papers, so as to judge the performance of scientific research output of a country or region, scientific research units and individuals and reflect its international academic level. Therefore, SCI is an internationally recognized scientific and technological literature retrieval tool worthy of reference.

Refer to the above? Baidu encyclopedia-scientific citation index