An sci article is cited more than 14 times a year. By querying ESI data, the number of citations of all papers in ESI discipline by 2022. For engineering SCI papers, from 20 12 to 2022, the average number of citations within 10 years after publication is 19. 10 times. From 20 17 to 2022, every article in the five years after publication was cited 15 times. From 202 1 to 2022, the average number of citations per year after publication was 2.04. It can be seen that an sci article is cited more than 14 times a year. Sci is a scientific citation index (SCI), a document retrieval tool founded by institute for scientific information (ISI) on 196 1. The founder is EugeneGarfield, a famous American intelligence expert.