Sci papers here refer to academic papers included in sci journals. Most of sci papers are about global natural science and matter, and then they are included. However, sci can be divided into two categories, one is that those with large impact factors are included in sci, and the other is that those with small impact are included in scisearch.

10 Sci is an excellent publication, that is, it has the highest evaluation. There are only a few top publications in some fields, depending on the division. It would be better to divide them into 1 area.

The evaluation of a publication depends on the influencing factors. The impact factor is one of the data in the periodical citation report produced by Thomson Reuters. It is an important factor to evaluate the level of an academic paper. More importantly, the impact factors cannot be directly compared. It can't be said that the sci of 10 must be better than that of 3, depending on which field and subject it is.