How to obtain foreign information for free

Full-Text Free database

L DOAJ: http://www.doaj.org/

l Open j-gate: http://www.openj-gate.com/

l Freefulltext: http://www.freefulltext.com/

l Oaister: http://www.oaister.org

l ARXIV: http://cn.arxiv.org

Doaj

Doaj ( http://www.doaj.com ) is a directory retrieval system for open access journals created and maintained by the University Library of Lund (Lund), Sweden. The system is designed to cover all disciplines, free, full-text, quality-controlled scientific and academic journals in all languages. Doaj officially released in May 2003, as of April 19, 2007, a total of 2642 open access journals were included in 131,089 papers covering agriculture and food science, biological and life sciences, chemistry, natural sciences, engineering, Earth and Environmental Sciences, medicine, mathematics and statistics, 17 subjects, including physics and astronomy.

Open j-gate

L Open J-gate provides free search and full-text links based on open access journals. It was created by Informatics (India) Ltd in 2006 and began to provide services. Its main purpose is to ensure free and unrestricted access to journals and related literature in the academic and research fields of the reader.

The main features of the Open j-gate are:
1. The number of resources is large. Open J-gate systematically collects about 3720 journals worldwide (currently up to 3741), including schools, research institutes and industry journals. Over 1500 academic journals are peer-reviewed (peer-reviewed). is currently the world's largest open access journal portal.
2. Update in a timely manner. Open J-gate is updated daily. More than 300,000 new articles are collected each year and provide full-text search.
3. The search function is powerful and easy to use. Open J-gate offers three retrieval methods, namely Quick Search, Advanced search and Journal browsing (browse by journals). In different search methods, users can search by publication name, author, abstract, keywords, address/organization, etc. The search results are arranged in terms of relevance.
4. Provide periodical "catalogue" browsing. Through this browsing, users can learn the content information of the corresponding periodicals.
5. Provide the user feedback channel. Users can use feedback to make suggestions and comments.

Freefulltext

L freefulltext.com website maintains a list of over 7000 online scholarly journals that provide free reading, including a wide range of issues in politics, economics, medicine, biology, agriculture, computing, physics, mathematics, education, etc. The principles of periodical collection are:
(1) The included periodicals have at least one issue of free full-text content available online.
(2) This content is free for any user on the Internet freefulltext.com these periodicals in alphabetical order, detailing the year, volume, period, and resource links that provide free full text before each journal. Some resources link to the homepage of the journal, and part of it links directly to the page where the free volume period resides. Once the journal stops offering free full-text services, freefulltext.com will remove it from the list. If the same journal publishes their content on different websites and complies with Freefulltext.com's free rules, these sites will be included in the Freefulltext.com list.

Oaister

L This is an e-book, electronic periodicals, audio recordings, pictures and movies and other digital information "one-stop" search portal, by the American Library Association as the best free reference site for 2003. Data from more than 200 institutions. can be retrieved by keyword, title, creator, subject, or resource type. The result contains a description of the resource and a link to the resource.

Cornell University arXiv Pre-printed storage

L arxiv pre-printed literature library is a discipline-based open access warehousing, designed to facilitate the exchange and sharing of scientific research results. It currently contains 170,000 pre-printed documents in five disciplines, including physics, mathematics, non-linear science, computer science and quantitative biology. The researchers in a certain format after the paper layout, by e-mail, FTP, etc., by subject category upload to the corresponding library. The ARXIV electronic Print document library does not have a review process, but peers can comment on a document library's paper and communicate with the author in two directions. While submitting the paper to E-print arxiv, the author can also submit the paper to the academic journal for publication, and once the paper is published in a certain periodical, the paper in E-print arxiv will be added to the periodical information of the journal in the document.
China Mirror: http://cn.arxiv.org

Highwire Press
Http://highwire.stanford.edu/lists/freeart.dtl

L Highwire Press is the world's largest provider of free full-text scholarly literature publishers. At present, more than 710 electronic periodicals have been included, the total number of articles has reached 230多万篇, of which more than 770,000 articles are free to obtain the full text. Through this interface can also retrieve the Medline included in the 4500 kinds of periodicals in the 1200多万篇 article, you can see the digest title. Highwire Press includes journals covering the following disciplines: Life sciences, medicine, physics, and social sciences.

D-scholarship Warehouse, Florida State University
Http://dscholarship.lib.fsu.edul D-scholarship Warehouse (the Florida state University d-scholarship Repository) provides a comprehensive service for all faculties and researchers at Florida State University to self-archive and self-manage their research findings and teaching materials.
From the storage object, d-scholarship warehousing not only stores the pre-printed copy of the paper, but also relates to almost any other academic content based on electronic format, including work documents, technical reports, conference proceedings, experimental data, electronic presentations, multimedia files and simple Web documents. Lu:research
Website: http://lu-research.lub.lu.se
Llu:research is an open access warehouse for information at the University of Lund, Sweden, which provides local publication of research results for faculty members, and reveals the findings and related information of Lund University. Library of the University of Toronto, Canada open Access Warehouse
Website: http://tspace.library.utoronto.ca/l Library of the University of Toronto, Canada (University of Toronto Libraries) established its open access warehouse in 2003 It provides open access to academic work for our researchers, with nearly 4,000 bibliographic and full-text records so far. Find articles (thesis search net)
The HTTP://WWW.FINDARTICLES.COM/L paper Search network offers millions of papers on the art and entertainment, automotive, business and financial integration, computer and technology, health and fitness, journalism and society, science education, sports and many other topics. The National Academies Press
(American Academic Press)
HTTP://WWW.NAP.EDU/BROWSE.HTMLL NAP was created by National Academies and published by the National Academy of Sciences of the United States of America (Academy of Sciences), National Institute of Engineering (Academy of Engineering), National Medical School of the United States (the Institute of Medicine), and National Studies Council ) published an academic paper. The NAP publishes about 200 books each year on science, engineering, health and related policies. More than 2,500 kinds of e-books available for free online viewing. Embodies the most authoritative insights and perspectives in the field of science and health. Asiaing.comlAsiaing.com's slogan is "Free ebook, free magazine, knowledgesharing". It offers more than 1000 copies of the original English book, which can be freely downloaded and read, and electronic versions of various magazines and newspapers. Especially recommended to readers is the free download of the latest English Reader's Digest, which is available on asiaing.com. Free Digest Database Sdol (ScienceDirect OnLine)
HTTP://WWW.SCIENCEDIRECT.COM/L Sdol is the world's most comprehensive full-text literature database, published by the Dutch Elsevier Company, covering mathematics, physics, chemistry, astronomy, medicine, life sciences, business and economic management, computer science, engineering technology, 21 disciplines, such as energy science, environmental Science, materials science and social sciences. Covering almost all subject areas and most of the core periodicals, including: SCI contains 1393 kinds, ei included 515 kinds. is included in many of the world's most famous two literature databases. Sdol has been recognized by more than 70 countries and is currently the most downloaded database in the domestic usage rate. Sdol's official website provides a free summary search, and most of the literature since 1995 can be obtained through our university's document delivery service at home. Blackwell
Http://www.blackwell-synergy.coml Blackwell Publishing is the world's largest academic association publisher, currently, Blackwell with more than 600 scholarly or professional associations, the number of published periodicals has more than 800 kinds, Contains many English-language periodicals published in non-British and American regions. Science journals accounted for about 54%, the rest of the humanities and social sciences. Related disciplines include: physics, medicine, social sciences, humanities, arts, behavioral science, business, economics, finance, accounting, Mathematics and statistics, law, medicine and health, biophysics, agriculture and zoology, engineering computer technology and other fields. The academic quality of Blackwell published periodicals is very high, and many of them are the core journals in the fields of science and technology, medicine, social sciences and humanities. According to 2004 statistics, there are 425 periodicals in Blackwell Periodicals which are included in SCI and ssci, accounting for 60% of all periodicals. Blackwell's official website provides a free summary search, and most of the literature can be obtained through our university's document delivery service at home. Scholargoogle
Http://scholar.google.com/lGoogle Academic Search provides an easy way to extensively search for scholarly literature. You can search from a single location for a wide range of disciplines and sources: peer-reviewed articles, papers, books, abstracts, and articles from academic publications, professional associations, pre-printed, universities and other academic organizations. Google scholar can help you identify the most relevant research across the academic landscape. Free use of foreign materials, Chinese information provided with the relevant database links, is a paid use. Professional Free book Search engine
http://books.google.com/

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How to obtain foreign information for free