First, the first district periodicals

Journals in the region refer to the journals with the highest impact factors, and are generally considered as the top research achievements in this field. Being able to publish papers in regional journals shows that your research work has reached the international leading level.

In addition, journals in a field often have a high citation rate, which means that your research results will greatly promote the progress of the whole field. Therefore, regional journals are undoubtedly one of the most competitive choices.

Periodicals in the second and second districts

Compared with the journals in the first district, the journals in the second district have lower impact factors, but they still have a higher academic level. Usually, the journals in the second district are considered as the best in the academic field, and the papers published in these journals also have high influence. If you want to gain a certain popularity in a certain field, it will be a good choice to publish it in the second district journal.

Periodicals in the third and third districts

Although the impact factors of periodicals in the three regions are relatively low, it does not mean that their academic value is necessarily lower than that in the other two regions. In fact, many three-zone periodicals still have high popularity and influence in specific fields.

If you want to publish a paper, but you are worried about fierce competition, then three-zone journals may be a more practical choice. Of course, it also depends on the actual situation in your field.

Four or four regional periodicals

Four-zone journals usually refer to the journals with the lowest impact factors, and their published research results may be insufficient in some aspects. However, this does not mean that the four-zone periodicals are worthless.

In fact, some four-zone journals may focus on a specific field or problem, providing unique perspectives and inspiration for related research. In a word, four-zone periodicals are suitable for those who seek to publish papers to improve their personal qualifications, but they should be carefully weighed when choosing.

Introduction and main influence of SCI

I. Introduction to SCI

Scientific Citation Index (SCI), institute for scientific information, USA (? Eugene garfield, ISI), founded the citation database in Philadelphia, USA on 1957. SCI (Science Citation Index), EI (Engineering Index) and ISTP (Science and Technology Conference Index) are three world-famous retrieval systems for scientific documents, which are internationally recognized as the main retrieval tools for scientific statistics and scientific evaluation.

Second, the main impact

Scientific citation index is based on Bradford's theory and Garfield's citation analysis theory.

Evaluate and study academic journals and scientific research achievements in many aspects, so as to judge the performance of scientific research output of a country or region, scientific research units and individuals and reflect their international academic level. Therefore, SCI is an internationally recognized scientific and technological literature retrieval tool worthy of reference.