1.DOAJOA periodical retrieval platform
DOAJ (Directory of Open Access Journal, Director of Fopen Access Journals) contains academic and research journals, which are free, full-text and high-quality. Its quality comes from peer review or editor's quality control, so it has high reference value for academic research.
2.OALib
OALib is the abbreviation of OpenAccessLibrary, which is OpenAccessLibrary. At present, there are 258,647 English periodical articles available for free registration and download in the OpenAccess Library. Most of these articles come from internationally renowned publishing institutions, including Hindawi, PlosOne, MDPI, ScientificResearchPublishing, etc.
His thesis covers mathematics, physics, chemistry, humanities, engineering, biology, materials, medicine and humanities. At the same time, OALIB is constantly striving to increase the number of papers and let more free OA articles join OALIB.
3. Scientific Research Press
Scientific Research Publishing (SRP) is an international comprehensive open-source academic journal publishing institution. At present, there are nearly 300 kinds of international open source English periodicals, all of which are OpenAccess (OA). All periodicals can be downloaded free of charge (without concurrent users), and all periodicals date back to the date of publication.
Step 4: stage j
J-Stage (Japan Science and Technology Information Collection, Electronic Edition) contains the documents published by various Japanese science and technology societies (mainly in English), including 255 electronic journals, conference proceedings, research reports, etc. Among them, 199 periodicals can browse the full text for free, and most conference proceedings and research reports can browse the full text for free.
The purpose of J-STAGE is to release the outstanding achievements and development of Japanese scientific and technological research to the whole world immediately.
5. Shero
Scielo (Science Elective Library) is an online scientific and technological electronic library in Brazil, which publishes periodicals covering agriculture, botany, zoology, medicine and other fields. 1997 was founded in Brazil on 1997, and it is one of the important international advocates and practitioners of OA movement.
At present, SciELO has developed into a transnational network platform consisting of a main website and 10 sub-websites distributed in different countries. SciELO has three interfaces: English, Portuguese and Spanish.
6. Open the J door
OpenJ-Gate is a website established on February 27th, 2006 in response to Budapest Open Access Initiative. OpenJ-Gate provides free retrieval and full-text links based on open access journals.
The OpenJ-Gate system has collected about 3,720 kinds of journals around the world, including journals of schools, research institutions and industries. These journals are comprehensive, including biomedical journals. More than 1500 academic journals have been peer-reviewed.
7. Public Science Library
PLOS (Public Library Science) was originally a non-profit academic organization supported by many Nobel Prize winners and charities, aiming at popularizing the latest research results in the field of science and medicine all over the world.
PLoS has published eight open access journals in the fields of life sciences and medicine, and the full texts can be obtained free of charge, which is quite influential. At present, Plos series periodicals have been included in SCI. The following is a list of influencing factors of its journals.
8. Marxist Association
Max Planck Institute in Germany? Planck Association for the Advancement of Science is a national academic institution funded by the German government. The website has free research magazines, research reports, annual reports, scientific pictures, video files, patents and so on. , and you can search the related documents of materials science research through search engines.
At present, there are 80 research institutes, including the Department of Biology and Medicine, the Department of Chemistry, Physics and Technology, and the Department of Humanities and Social Sciences. At present, it has about 12000 employees, including 3500 scientists. In addition, there are about 8,000 doctoral students, postdocs and visiting scientists engaged in scientific research in Max Planck's institutes.
Max Planck Institute is an independent non-profit research institution and a world-famous research institution, with three Nobel Prize winners in chemistry. Its material research is a solid-state research of gravity material science.
9. jokes
CnpLINKer (China Book Import and Export (Group) Company) is a network retrieval system for foreign periodicals developed and provided by China Book Import and Export (Group) Company.
At present, * * * has collected more than 2000 kinds of periodicals 14000 kinds of OpenAccess periodicals14000 kinds, 9 million articles' abstract data and full-text link services, and 400 kinds of domestic OPAC information sets, and kept them updated irregularly.
The electronic full-text link of periodicals and the query function of domestic collections not only provide users with fast and flexible query and retrieval functions, but also provide convenience for users to quickly obtain the full-text content of foreign periodicals.