|English Name:||China Journals Deep-Indexing Database (CJDD)|
|Brief Introduction:||China Journals Deep-Indexing Database is based on China Academic Journal Network Publishing Database, indexes journals deeply with digital information technology, searches and extracts English abstract and images of each article, providing a new database of English abstract and images searching in full English interface to overcome language barrier for overseas scholars. CJDD covers more than 10 million English abstracts and 4461 journals.|
|Features:||CJDD is an important tool to learn about the academic trend in China, the core features are containing deeply-indexed figures and tables in every article.|
|Series and Subjects:||The product comprises 10 series, which are Science/Technology/Engineering A (Mathematics, Physics, Mechanics, Astronomy, Geology and biology), Science/Technology/Engineering B (Chemistry, Chemistry Industry, Metallurgy Industry, Environmental Science and Mining Engineering), Science/Technology/Engineering C (Mechanics, Aeronautics, Traffic, Hydraulic, Architecture and Energy), Agriculture, Medicine/Hygiene, Literature/History/Philosophy, Politics/Military/Law, Education/Social Science, Electronics/Information Technology, Economics and Management. The 10 series are further divided into 168 subjects of databases.|
|Year Coverage:||English journals from 1935 onwards, and some date back to the first issue.|
|Product Forms:||Web, mirror sites, DVD-ROMs and flow accounting.|
1. Daily update: CNKI central servers and overseas mirror sites are daily updated, except for the public holidays.
2. Monthly update: CNKI overseas mirror sites and DVD-ROM are updated on the 10th of each month.
|Publisher:||China Academic Journals Electronic Publishing House Co., Ltd. Copyright Statement|