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   239篇
  免费   9篇
  2020年   7篇
  2019年   7篇
  2018年   13篇
  2017年   8篇
  2016年   12篇
  2015年   9篇
  2014年   6篇
  2013年   72篇
  2012年   4篇
  2011年   4篇
  2010年   5篇
  2009年   5篇
  2008年   3篇
  2007年   3篇
  2006年   7篇
  2004年   6篇
  2003年   6篇
  2002年   6篇
  2001年   1篇
  2000年   3篇
  1999年   3篇
  1998年   4篇
  1997年   1篇
  1996年   1篇
  1995年   1篇
  1992年   1篇
  1991年   1篇
  1990年   2篇
  1989年   2篇
  1986年   2篇
  1985年   2篇
  1984年   2篇
  1983年   4篇
  1982年   2篇
  1981年   1篇
  1980年   2篇
  1979年   3篇
  1978年   5篇
  1977年   7篇
  1976年   1篇
  1975年   1篇
  1974年   2篇
  1973年   1篇
  1972年   2篇
  1970年   1篇
  1969年   1篇
  1968年   1篇
  1967年   1篇
  1954年   1篇
  1952年   1篇
排序方式: 共有248条查询结果,搜索用时 15 毫秒
31.
A paucity of archaeological remains of Atlantic salmon in Northeast North America has been cited as evidence that the species may have been present in the region only during and after the Little Ice Age (ca. 1450–1850 AD), one of coldest periods of the Holocene. However, significant problems of preservation, recovery and identification remain. Here, improved methods of identification use vertebra structure to distinguish salmon from trout, and strontium/calcium ratios to differentiate sea-run from landlocked salmon. In addition to the Little Ice Age, Atlantic salmon is identified in tightly dated contexts at 7000–6500 and 3500–3000 calendar years BP, during climate periods that were comparatively warm and wet.  相似文献   
32.
33.
34.
The first step in a hysteretic energy-based design approach of performance-based design is the estimation of hysteretic energy demand in the structure. A nonlinear response-history analysis of the multi-degree of freedom model gives an accurate estimation, but it is not suitable for adopting in design. Two alternative methods, based on the concepts of modal pushover analysis (MPA) and 2D-MPA, are proposed in this article for uniaxial plan-asymmetric structures. Application studies show that both methods are efficient. While the 2D-MPA-based method is more accurate, the MPA-based method is more suitable for design adoption. Significant conclusions are given for prospective application of these methods.  相似文献   
35.
36.
Roy Vickery 《Folklore》2013,124(2):244-247
Superstitious Beliefs and Practices of the Finns. I. Those relating to Hunting and Trapping. (Sttomen kansan mtiinaisia taikoja. I. Metsastys taikoja). Helsingfors, 1891, pp. 243.By John Abercromby.  相似文献   
37.
This is the first systematic analysis of the contents of the earliest monastic chronicle in the Latin west, the so‐called Chronicle of Ireland, which spans the years 431/2–911. It aims to establish the reasons for which the Chronicle was compiled, unravel the process of compilation, and challenge the generic classification of the Chronicle and other European chronicles of this kind as works of historiography. As an alternative, it is proposed that the Chronicle might have been compiled with an eschatological objective in mind. The present investigation is shown to have implications for our understanding of early medieval chronicling more generally.  相似文献   
38.
This article will examine the representation of Irish women servants in Maeve Brennan's short stories, first published in The New Yorker in the 1950s, and collected in The Rose Garden (2001). The Irish ‘Bridget’, the most publicly visible, if troubling, image of Irish womanhood in late nineteenth- and early twentieth-century America, has received much-needed attention from historians and social scientists in the last decade, and is a central figure in discussions of Irish women and diasporic identity in the American context. Drawing on this body of work, and focusing in detail on key stories from the collection, including ‘The Bride’, ‘The View from the Kitchen’, ‘The Anachronism’, ‘The Divine Fireplace’, and ‘The Servants’ Dance', I argue that Brennan's reimagining of the Irish Bridget can be approached as a form of feminist revisionism, as Brennan's stories enter into a charged dialogue with the history of imagining the Irish woman servant as an undesirable but necessary presence in middle-class American domestic culture. Brennan's self-reflexive reworking of this paradigm is informed by her work as a satirist for The New Yorker, and proves an effective means of writing back to this problematic history, as she takes up recognisable tropes and motifs from earlier representations of Bridget in popular and literary culture, and alters them in knowing and subversive ways.  相似文献   
39.
40.
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