China Journal Network provides CNKI source database, foreign language database, industrial database, agricultural database, medical database, economic database and educational database. Among them, the comprehensive databases include China periodical full-text database, China doctoral thesis database, Zhongdou excellent master thesis full-text database, China important newspapers full-text database, and China important conference literary theory full-text database.
China Knowledge Network (formerly China Periodical Network) is a comprehensive large-scale database, including China periodical full-text database, China excellent doctoral and master's degree thesis full-text database, China important conference thesis full-text database, China important newspaper full-text database, China statistical yearbook database and China excellent literary works periodical literature database.
There are several databases in China Legal Knowledge Database, covering mathematical science, chemistry and chemical engineering, energy and materials, industrial technology, agriculture, medicine and health, literature, history and philosophy, economy, politics and law, education and social science, electronic technology, information science and other disciplines.
Database retrieval method:
After entering China HowNet, you should first choose a database. You can select a database for single database retrieval, or you can select cross-database retrieval to retrieve multiple databases at the same time. If only one library is searched, a single library is used for retrieval.
Quick retrieval:
The search fields include title, subject, keywords, abstract, author, first author, author unit, source, full text, references and funds. There are two ways of matching: exact matching and fuzzy matching. Accurate retrieval means that the retrieval results contain words that completely match the retrieval words. Fuzzy retrieval means that the search results contain search words or morphemes in search words. In the specific retrieval application, we can first define the retrieval field, retrieval time range and matching method, then input the retrieval words, select the retrieval database and quickly retrieve the interface.