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   1905篇
  免费   84篇
  2020年   25篇
  2019年   26篇
  2018年   47篇
  2017年   55篇
  2016年   61篇
  2015年   55篇
  2014年   38篇
  2013年   651篇
  2012年   62篇
  2011年   59篇
  2010年   81篇
  2009年   70篇
  2008年   40篇
  2007年   82篇
  2006年   70篇
  2005年   22篇
  2004年   38篇
  2003年   29篇
  2002年   25篇
  2001年   22篇
  2000年   17篇
  1999年   21篇
  1998年   19篇
  1996年   12篇
  1995年   22篇
  1994年   15篇
  1993年   9篇
  1992年   12篇
  1991年   9篇
  1990年   9篇
  1989年   12篇
  1988年   14篇
  1987年   18篇
  1986年   12篇
  1985年   19篇
  1984年   17篇
  1983年   12篇
  1982年   13篇
  1981年   14篇
  1980年   16篇
  1979年   14篇
  1978年   11篇
  1977年   8篇
  1976年   9篇
  1975年   9篇
  1974年   8篇
  1973年   9篇
  1972年   12篇
  1971年   8篇
  1970年   9篇
排序方式: 共有1989条查询结果,搜索用时 761 毫秒
51.
52.
53.
54.
Fifty-one waster sherds of Terra Sigillata (~20-0 b.c. ) from Arezzo, Italy and Lyons, France have been chemically analysed for twenty-eight elements by neutron activation and seven by X-ray fluorescence. Most of the elemental abundances were measured with high precision and cross-comparisons of the two techniques of measurement (and sample preparation) give added insight as to their relative precision, the calibration differences and the extent to which volatile materials such as carbonate or water influence the results. The sherds from Arezzo formed a homogeneous and distinctive chemical group while all but two of those from Lyons were classified into three such groups. Two of the Lyons groups (MML A and MML B) were from Montée de La Muette and one was from Loyasse. Four additional sherds from houses excavated in Strasbourg and one from Lyons, all of which bore the signature of the famous Anetine pottery-making firm of Ateius, were also analyzed by the same techniques. These signed sherds all had the same composition pattern and it closely matched one of those from Montée de La Muette (MML A) in Lyons. It is therefore suggested that these five sherds bearing the Ateius signature were made in the general vicinity of Lyons and were part of the output of an as yet unknown Gallic branch of the firm of Ateius.  相似文献   
55.
56.
One of the most intriguing questions for archaeologists studying clay artefacts concerns technologies employed in their manufacture and whether standardization can be demonstrated through traditional ceramic analysis. Visual comparisons and mechanical measurements have been used to determine correlations and infer standardization. Using a laser multi‐line scanner and software developed to quantify Hausdorff distances between vertices in 3D surfaces, we analysed sample collections of figurines and moulds from Belize, Mexico and Honduras. The results indicated that this procedure was a more precise indicator of common source and standardization in moulded clay artefacts. This method provided data relevant to assessing the scope of ancient trade networks and the nature of social and economic relationships that existed among the ancient inhabitants of Mesoamerica.  相似文献   
57.
58.
59.
This book excerpt explores the impact of the February revolution on periodical publishing in wartime Russia. It briefly considers the publishing activities of various political parties, but the main focus is publications by and for the active-duty army. The new freedom of the press allowed for dozens of new publications produced by soldiers themselves. Numerous other entities, including the civil authorities and public and private organizations, also published papers intended for the army, often with a pro-war message. But worsening problems with transport and supplies made it difficult to satisfy soldiers’ deep desire for news.  相似文献   
60.
This study heeds the call for a ‘truth-telling’ of injustices carried out on Aboriginal communities during the colonial acquisition of Australia as stated in the Uluru Statement from the Heart 2017. Here, we discuss the lives of eight Indigenous people buried in Normanton in north-west Queensland (QLD) who died and had their remains collected in the late 1890s as scientific specimens. The remains were later repatriated to the community before being further exposed by erosion in 2015. With the consent and participation of local traditional owners—the Gkuthaarn and Kukatj people—this assessment utilised bioarchaeological, historical and anthropological methodologies to gain a better understanding of Indigenous life and health on the Australian colonial frontier. Gkuthaarn and Kukatj people were engaged throughout the investigation, and statements throughout this piece made by them illustrate how bioarchaeology can inform on past injustices in Australia’s history, bringing them into the public consciousness and aiding the transition to reconciliation through ‘truth-telling’.  相似文献   
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