1, hownet.
China Knowledge Network refers to China National Knowledge Infrastructure (CNKI), which was founded in June 1999 and initiated by Tsinghua University and Tsinghua Tongfang. It is a knowledge informatization construction project aimed at realizing the dissemination, enjoyment and value-added utilization of knowledge resources in the whole society. The project construction and its industrial operation mechanism provide rich knowledge information resources and an effective platform for knowledge dissemination and digital learning for the whole society to share knowledge resources efficiently.
2.VIP。
Whip. Com, formerly known as VIP Information Network, is a website founded by Chongqing VIP Information Co., Ltd., the founder of China periodical database construction. It has become the largest comprehensive literature database in China. Since 1989, it has been committed to the scientific and rigorous research, analysis, collection, processing and other in-depth development and promotion of massive newspaper data. Since the establishment of 1993, the company's business scope involves database publishing, knowledge network dissemination, periodical distribution, etc.
3. Wanfang.
Wanfang Medical Network is a fully open medical information integration service and medical knowledge link platform for hospitals, medical colleges, scientific research institutions, medical machinery enterprises and medical and health practitioners, which is launched by Wan Fang Data Co., Ltd. with the concept of openness, union and professionalism. Provide users with information retrieval functions such as periodicals, dissertations, conference papers and scientific and technological achievements, and provide online support services.