The most common ones are mainly divided into four categories: statistical source core, commonly known as "scientific and technological core", mainly medical journals with more arrangement ratio; The core of NTU is CSSCI periodical. It is required that the author's title is basically doctor or associate professor or above; CSCD core, mainly including engineering articles; Core of Peking University, lecturer, doctor or above, social science and engineering articles are all acceptable.

I. China Science and Technology Core Journals

China Science and Technology, the core periodical of science and technology in China, is the statistical source periodical of China scientific papers published by China Institute of Science and Technology Information. The subject category is mainly natural science field, which is a relatively recognized periodical catalogue of scientific and technological statistics sources in China. Entrusted by the Ministry of Science and Technology, its authority ranks first in China.

Second, the selection criteria

There are 17 criteria for selecting statistical source journals, namely: total cited frequency; Influencing factors; Annual index; Self-citation rate; What is the citation rate; Price index; Citation half-life; Citation half-life; Aging coefficient; Number of source documents; Number of references; Average citation rate; Average number of authors; Regional allocation number; Number of institutions;

International paper ratio; The impact factor refers to the ratio of the total number of citations of papers published in the first two years of the journal to the total number of papers published in the first two years of the journal. Generally speaking, the greater the impact factor of a journal, the greater its academic influence and role.

Third, the difference between China Core and China Science and Technology Core.

Chinese Core: The catalogue of Chinese core periodicals is sponsored by Peking University Library and Peking University Library Periodical Work Research Association. Including all disciplines.

China Science and Technology Core: China Science and Technology Papers Statistical Source Journal published by China Institute of Science and Technology Information, also known as China Science and Technology Core Journal, is a relatively recognized catalogue of science and technology statistical source journals in China. Entrusted by the Ministry of Science and Technology, it has the official color and the authority ranks first in China.

The difference between China Core and China Science and Technology Core lies in the different organizations of evaluation and the different scope of accreditation. China's scientific and technological core is gradually recognized by people, and its status is constantly improving.