It belongs to the top papers in international academic circles. Can represent the most advanced technology and development trend of this major in the world. Papers are generally classified according to the influencing factors of SCI journals. The higher the impact factor, the higher the rank of SCI journals. Therefore, for many authors, SCI papers are the highest recognition of their academic level.

Sci papers are high-level papers among many academic papers. Sci refers to SCI print edition and SCI CD-ROM edition (SCI CDE for short), with more than 3,500 source periodicals. SCI-E(SCI extended) is an extended library of SCI, which contains more than 5,600 source periodicals and can be searched online or on the Internet.

Generally, the researchers who can publish papers in sci journals are all professors or associate professors. Then the level of 30 sci papers can be imagined.