One kind of periodicals is the national core periodicals, the other is other core periodicals except the national core periodicals, and the third is ordinary periodicals. Generally speaking, ordinary journals have a low level and are suitable for general institutions to publish evaluation titles, while core journals have a high level and can be used as scientific research achievements of academic institutions such as universities.

Because there are many institutions and colleges that grade periodicals, the starting point, purpose and standard of grading are different, and the titles of periodical grading are also varied.

The role of publishing a paper:

A thesis refers to an article that describes the achievements of academic research after research in various academic fields. It is not only a means to discuss and study academic problems, but also a tool to exchange academic research results. Different people have different functions in publishing papers:

1, title evaluation (promotion of title): graduate students need to graduate; When teachers, medical staff, personnel of scientific research institutes and employees of enterprises are promoted to a higher level, publishing periodical papers is a necessary reference index.

2. Application for funds and projects: When the education, science and technology and health systems apply for projects of the National Natural Science Foundation of China, other fund projects and various research projects every year, the papers are published as a conclusive display of the research results completed by the funds or projects.

3. Research in basic fields all over the world, such as medicine, mathematics, physics, chemistry, life sciences and other fields. Publicly publishing papers is a display and report of the latest scientific research achievements and research methods. Promote the scientific and technological progress of the whole society.

Refer to the above? Baidu Encyclopedia-Papers