China periodical full-text database (CNKI) is the world's largest continuously and dynamically updated full-text database of China periodicals, which contains more than 8,200 important periodicals in China, mainly focusing on academic, technical, policy-oriented, advanced science popularization and education.
At the same time, it has collected some publications on basic education, popular science, popular culture and literary works, covering natural science, engineering technology, agriculture, philosophy, medicine, humanities and social sciences and other fields, totaling more than 22 million articles.
Overview of China HowNet:
1. The product is divided into ten photo albums: science and technology A, science and technology B, science and technology C, agriculture, medicine and health, literature, history and philosophy, politics, military affairs and law, education and social science integration, electronic technology and information science, economy and management. Ten albums are divided into 168 topics and nearly 3600 sub-columns.
2. Collection period: 1994 to present (some journals can be traced back to 1979, and some journals can be traced back to the founding), and the data integrity of 8,200 full-text journals reaches 98%.
3. Database application: CJFD can be used for the following special services besides conventional services such as information retrieval, information consultation and original text delivery: citation service, which generates citation retrieval reports; Novelty retrieval service, generating novelty retrieval report; Periodical evaluation, generating periodical evaluation retrieval report; Evaluation of scientific research ability.
Generate a search report on scientific research ability evaluation; Project background analysis, generating a project background analysis retrieval report; Topic setting service, generating CNKI newsletter.