Approved by the General Administration of Press and Publication, this journal is sponsored by Tsinghua University and edited and published by China Academic Journal (CD-ROM version) electronic magazine. Established on 200 1. This treasure house of scientific, technological and cultural resources, which brings together important innovations of various disciplines and high-level innovative talents in China, was published on the publishing platform of China HowNet. It is integrated with CNKI series databases such as China Journal Network (or China Academic Journal Online Publishing Database), full-text database of important conference papers in China, full-text database of important newspapers and periodicals in China, full-text database of books in China, full-text database of China Yearbook, full-text database of excellent master's degree papers in China and other professional databases at home and abroad, and compiled into China Knowledge and Culture Information for large-scale integration and dissemination. At present, the total amount of literature information in the total database has reached more than 50 million, and more than 20,000 articles of all kinds are published every day, which constitutes the knowledge dissemination system with the largest amount of literature information and the highest access frequency in the world, and forms the National Knowledge Infrastructure (CNKI) that supports the knowledge innovation and learning of the whole society, providing knowledge resources guarantee services for building an innovative country and a knowledge-based society.