The world's largest full-text database of China periodicals, which is continuously and dynamically updated, contains more than 8,200 important periodicals in China, mainly academic, technical, policy-oriented and advanced popular science education, as well as some basic education, popular science, popular culture and literary works, covering natural science, engineering technology, agriculture, philosophy, medicine, humanities and social sciences and other fields, with a total of more than 22 million full-text documents. According to the discipline, it is divided into 168 topics, which are updated daily, and more than1000000 documents are added every year.
China Periodical Full-text Database (Century Periodical)
There are 4 195 periodicals from 1979 to 1993. Some periodicals can be traced back to the beginning of publication, and the earliest date is 1887. According to the subject, it is divided into 168 topics, and there are more than 5 million existing documents, which are updated every month.
Chinese Doctoral Dissertation Full-text Database
From 65438 to 0999, more than 50,000 dissertations of 420 doctoral and master's training institutions were collected and updated daily.
Full-text Database of Excellent Master's Dissertations in China
Collected dissertations from 1999 to 652 doctoral and master's training institutions, and there are more than 370,000 dissertations, which are updated daily.
Full-text database of important newspapers in China
It has collected more than 700 important newspapers and more than 6.45 million articles since 2000, updated daily, and added1.20 million articles every year.
Full-text database of important conference papers in China
Collected the conference papers of more than 200 academic groups from/kloc-0 since 2000, with nearly 580,000 papers, which are updated daily.
China book full-text database
The first phase of the project is about to be completed. The first batch of 30,000 new books have been launched and updated daily, with an annual increase of 65,438+10,000 copies. China Hospital Knowledge Base
There are more than 400 kinds of medical journals 108, and the contents are increasing day by day.
Multimedia digital library in primary and secondary schools
Including more than 500 kinds of educational periodicals, more than 2,000 kinds of related periodicals, more than 400 kinds of related newspapers, as well as multimedia educational textbooks, synchronous teaching guidance for senior high and junior high schools, and guidance from famous teachers in college entrance examination. And the content is increasing every day.
China enterprise knowledge base
Collect data resources such as periodicals, excellent doctors, master's dissertations, important conference papers, full-text newspapers, full-text books and new bibliographies that enterprises need. It covers all kinds of information resources and knowledge resources needed by enterprises, and uses modern information technology to process and integrate them, so as to provide effective resources for enterprises by the most convenient and fast communication means. Mainly divided into iron and steel metallurgy, aluminum, petrochemical, oil and gas exploration, electric power, power generation, power grid, finance, insurance, securities, funds and other industries, enterprise knowledge base, the content is increasing every day. Digital knowledge element library
Including statistical data and scientific experimental data extracted from various statistical yearbooks and professional documents.
Meta-database of theoretical and methodological knowledge
Including the explanation of technical terms extracted from various encyclopedias and knowledge elements such as opinions, theories, methods and skills extracted from various professional papers.