Comments: It only provides the function of searching in foreign languages, but the full text cannot be obtained. Personally, I think it is not very ideal.
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China's higher education literature guarantee system provides. It can jointly search the contents of Chinese and western periodicals, Chinese and western books, dissertations and conference papers in colleges and universities.
NSTL literature retrieval: /index.html
provided by national science and technology library. To provide scientific and technological information services for the whole country, and to jointly search Chinese and foreign periodicals, dissertations, conference papers, books in Chinese and foreign languages, foreign scientific and technological reports, patents, standards, measurement and testing regulations, etc. It also provides free academic resources abroad, pre-printed portals at home and abroad, and navigation of network resources.
after logging in to the homepage of the website, it is suggested to access it in the following ways: select and enter according to the horizontal menu at the top of the homepage, such as literature retrieval, full-text literature, catalogue browsing, directory query, hotspot portal, network navigation, etc. After logging in to each column, you can see the details of each column, so you can understand it more clearly in use. Key recommendation: full-text literature column.
CASHL directory system: /search/default.asp
provided by china academic humanities and social sciences library. Provide foreign periodicals, foreign book catalogues and an overview of foreign core periodicals of humanities and social sciences in colleges and universities.
Multi-database search: /
This website is highly academic. The website interface is refined, which integrates all kinds of literature information retrieval and consulting services, and integrates all kinds of online resources with the literature resources of our library, providing great convenience for readers of our school and other colleges and universities.
literature retrieval: /netl/index.jsp
provided by China institute of science and technology information. The contents of Chinese and foreign periodicals, domestic dissertations, Chinese conference papers, foreign scientific and technological reports and audio-visual databases collected by the Institute can be retrieved.
free natural science network resources: /sub/nature.html
provided by Guangxi University Library. All of them are foreign databases and need to go abroad as agents.
free social science network resources: /sub/social.html
provided by Guangxi University Library. They are all foreign databases, rich in content and authoritative. Need to go abroad as an agent.
classic resources:/navigation/freedb/default.htm # freejournal
provided by the library of Tianjin University, it is comprehensive and has links to patents, standards, technical reports, free databases, free e-books and free electronic journals.
Recommended academic sites: /database/acaresource.html
It is provided by Tsinghua University Library, and a practical free academic resource site on the Internet is given.
foreign academic websites
foreign free academic websites:/Chinese/network _ navigation/hotsites/gwxs.htm
provided by Shanghai Jiaotong University Library.
OCLC FirstSearch online retrieval system: /content/web/tsg59.htm
provided by Guangxi University Library. Dialog system is the largest comprehensive international online retrieval system in the world at present, and its databases are various, involving natural science, social science, engineering technology, humanities, fact reporting, commercial economy and other fields. At present, the total number of databases in the system has reached 45, including well-known databases such as CA, BA, SCI, EI, INSPEC, DERWENT, NTIS and ISTP. The retrieval provided by the library is a paid service, which is divided into two ways: on-campus and off-campus users.
ASCE online academic library: /pubs/start.cfm? CFID=338326& CFTOKEN=25331
The publications of the World Population and Health Organization are mainly research and investigation reports from the World Population and Survey Organization, and the main literature types are scientific and technological reports, investigation reports and books. Because most of the documents are unpublished gray documents, they have high academic value and use value. All network users can log on to this resource website and consult some abstracts for free; A small number of documents can be downloaded free of charge.
Society of Automotive Engineers (SAE): http://www.sae.org/servlets/index
SAE is a professional organization of automotive engineering with high technical requirements and great influence. The main resources provided by the website are: periodicals, standards, books, research reports, monographs, etc. The three journals published by the Society can read part of the full text online for free, and other databases can only be used by ordering.