The Tibetan number is the WOS number: it usually refers to the access number, which is the only collection in the WOS platform, and each article corresponds to the access number.

SCI index number: SCI citation index (SCI) is a citation database founded and published by institute for scientific information (ISI)1961+0, covering comprehensive retrieval publications such as life science, clinical medicine, physical chemistry, agriculture, biology, veterinary medicine and engineering technology, and especially reflecting the academic level of natural science research. It is the most famous of the three retrieval systems in the world at present, among which life science, medicine, chemistry and physics account for the largest proportion, and the collection scope is the important international journals of that year. In particular, its citation index shows unique scientific reference value and occupies an important position in academic circles. Many countries and regions regard the papers collected and cited by SCI as an important index to evaluate academic level. Judging from SCI's strict principles of journal selection and strict expert evaluation system, it has certain objectivity and truly reflects the level and quality of the paper. According to the inclusion and citation of SCI, we can reflect the development of academic level from one side. Especially the annual ranking of SCI papers has become a very important standard to judge the scientific research level of a school. SCI takes the current content as the data source. At present, there are more than 5,000 periodicals in the natural science database, including 1350 in the life science series. The engineering and computer technology series includes 1030 kinds; 990 kinds of clinical drugs were collected; 950 kinds of agricultural and biological environmental sciences; The series of physics, chemistry and earth sciences includes 900 periodicals.