首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   13262篇
  免费   217篇
  国内免费   27篇
教育   9431篇
科学研究   1135篇
各国文化   189篇
体育   1062篇
综合类   9篇
文化理论   161篇
信息传播   1519篇
  2022年   83篇
  2021年   120篇
  2020年   229篇
  2019年   325篇
  2018年   435篇
  2017年   497篇
  2016年   445篇
  2015年   335篇
  2014年   397篇
  2013年   2605篇
  2012年   354篇
  2011年   367篇
  2010年   331篇
  2009年   283篇
  2008年   386篇
  2007年   344篇
  2006年   306篇
  2005年   264篇
  2004年   235篇
  2003年   259篇
  2002年   224篇
  2001年   237篇
  2000年   245篇
  1999年   205篇
  1998年   177篇
  1997年   168篇
  1996年   178篇
  1995年   165篇
  1994年   157篇
  1993年   122篇
  1992年   187篇
  1991年   170篇
  1990年   160篇
  1989年   152篇
  1988年   158篇
  1987年   128篇
  1986年   142篇
  1985年   144篇
  1984年   114篇
  1983年   145篇
  1982年   126篇
  1981年   118篇
  1980年   108篇
  1979年   125篇
  1978年   101篇
  1977年   82篇
  1976年   93篇
  1975年   75篇
  1974年   72篇
  1973年   60篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
51.
52.
The publication activity of Russian and Belarussian scientists, the degree of reflection of their papers in Scopus databases, and the data on the citation of Belarussian authors in the works of other researchers are discussed.  相似文献   
53.
The necessity for publishing a separate abstract journal on spintronics, which is a new, rapidly developing branch of physics, is substantiated. The interest in spintronics, which is the study of fundamental processes involving the simultaneous transport of both electron charge and electron spins in solids, as well as the interaction of electrons with a magnetic grating, is determined not only by its fascinating prospects but also the results that have already achieved. The spin and charge “degrees of freedom” open possibilities for the creation of semiconducting devices with parameters that are much superior to the existing ones and also the construction of devices that do not have analogues at present. First of all, this will permit problems of information transmission and processing to be solved in a new way. A detailed rubrication on spintronics is given in order to discuss the possibility of publishing a separate edition of an abstract journal devoted to spintronics.  相似文献   
54.
55.
Book reviews     
Zwartjes, Otto, ed. La Sociedad andalusí y sus tradiciones literarias (Foro Hispánico, 7). Amsterdam: Rodopi, 1994.

Brincat, Joseph M. Malta 870–1054: Al‐Himyai's Account and its Linguistic Implications. Malta: Said International Ltd., 1995. 52pp.

Sells, Michael A. Mystical Languages of Unsaying. Chicago: The University of Chicago Press, 1994. 316 pp., US$18.95 (paperback), US$49.91 (cloth).

Diem, Werner, Arabische Geschäftsbriefe des 10. bis 14. Jahrhunderts aus der Österreichischen Nationalbibliothek in Wien (Documents Arabica Antiqua 1), 2 vols. Wiesbaden: Harrassowitz, 1995. Textband ix+518pp., Tafelband 76 plates.

Coope, Jessica A. The Martyrs of Cordoba: Community and Family Conflict in an Age of Mass Conversion. Lincoln: University of Nebraska Press, 1995. xvii+113 pp., US$ 25 (cloth).

Edwards, John. Religion and Society in Spain, c.1492 (Variorum Collected Studies Series: CS 520). Aldershot and Brookfield: Variorum, 1996. x+351 pp., US$ 97.00 (cloth).

Tolan, John Victor, ed. Medìeval Christian Perceptions of Islam. A Book of Essays (Garland Medieval Casebooks, Volume 10). New York and London: Garland Publishing, 1996. xxi+414 pp., US$60.00 (cloth).  相似文献   

56.
57.
The health care environment of the 1990s demands that hospital libraries develop creative strategies for providing consumer health information (CHI). Librarians at the Reuben L. Sharp Health Sciences Library at Cooper Hospital/University Medical Center have developed a multifaceted approach to the problem. Using a combination of institutional resources, private funding, and cooperative arrangements with public libraries, the Sharp Library helps to serve the consumer health information needs of the southern New Jersey community.  相似文献   
58.
Among the huge maze of resources available on the Internet, UnCoverWeb stands out as a valuable tool for medical libraries. This up-to-date, free-access, multidisciplinary database of periodical references is searched through an easy-to-learn graphical user interface that is a welcome improvement over the telnet version. This article reviews the basic and advanced search techniques for UnCoverWeb, as well as providing information on the document delivery functions and table of contents alerting service called Reveal. UnCover's currency is evaluated and compared with other current awareness resources. System deficiencies are discussed, with the conclusion that although UnCoverWeb lacks the sophisticated features of many commercial database search services, it is nonetheless a useful addition to the repertoire of information sources available in a library.  相似文献   
59.
60.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号