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   248篇
  免费   16篇
  2023年   2篇
  2021年   2篇
  2020年   9篇
  2019年   7篇
  2018年   14篇
  2017年   17篇
  2016年   16篇
  2015年   4篇
  2014年   13篇
  2013年   58篇
  2012年   6篇
  2011年   5篇
  2010年   6篇
  2009年   12篇
  2008年   8篇
  2007年   6篇
  2006年   3篇
  2005年   5篇
  2004年   4篇
  2003年   3篇
  2002年   4篇
  2001年   2篇
  2000年   3篇
  1999年   2篇
  1998年   6篇
  1997年   5篇
  1996年   3篇
  1995年   4篇
  1994年   4篇
  1992年   3篇
  1991年   5篇
  1990年   3篇
  1989年   4篇
  1988年   4篇
  1987年   5篇
  1986年   1篇
  1981年   1篇
  1979年   1篇
  1977年   2篇
  1972年   1篇
  1969年   1篇
排序方式: 共有264条查询结果,搜索用时 15 毫秒
51.
52.
53.
Fifty‐seven glass samples from Carthage dating to the fourth to sixth century ad were analysed using the electron microprobe. The results show that these samples are all soda–lime–silica glass. Their MgO and K2O values, which are below 1.5%, suggest that they were made from natron, a flux that was widely used during the Roman period. The major and minor elements show that these samples can be divided into four groups, three of which correspond to the late Roman period glass groups that were found throughout the Roman Empire: Levantine I, and ‘weak’ and ‘strong’ HIMT. Of particular interest is our Group 2, which is technologically and compositionally similar to HIMT glass and the CaO and Al2O3 values of which are similar to those of Levantine I. Glass of similar composition has been reported by several authors and is predominantly found dating from the late fifth to seventh century. This could represent a ‘new’ glass group; therefore further study is needed to determine its origin. Also, this study suggests that the Vandal invasion in North Africa did not disrupt the glass trade between Carthage and the Levantine coast.  相似文献   
54.
In September 2014, the University of New England (UNE), Australia, began a three‐year programme of archaeological fieldwork and post‐excavation analyses focused on the site of Saruq al‐Hadid. In this paper, we present the initial results of our current field and laboratory research particularly related to site stratigraphy and formation processes, relative and absolute chronology, and the preliminary results of various programmes of post‐excavation analyses including archaeobotanical, zooarchaeological, ceramic and archaeometallurgical studies. These studies provide new data to build into the archaeological understanding of Saruq al‐Hadid that has, to date, focused largely on intensive excavation.  相似文献   
55.
Urban and Rural Definitions in Regional Context: A Case Study on Turkey   总被引:2,自引:0,他引:2  
Transformations in the urban and rural areas under the effects of global economic, social and political circumstances have rendered their boundaries more blurring. It has become increasingly difficult to make a clear distinction between urban and rural. This paper intends to bring definitions of urban–rural into discussion in the context of Turkey. It reveals the results of a research project (conducted by Hürriyet G. Ö?dül with Serkan Öngel and Habip Uluçay from Mimar Sinan Fine Arts University, Istanbul, Turkey, in 2007 and financed by the Scientific and Technical Research Council of Turkey and Mimar Sinan Fine Arts University Research Fund), aiming at revealing the degrees of the urbanity and rurality throughout the country, with an emphasis on the diversification of regions in the urban–rural context. The study is conducted at the NUTS 4 level. Districts are classified as “dominantly rural, dominantly urban and transitional” through the factor analysis based on six structures: agricultural production, non-agricultural production, employment, demography, education and flows of money, goods and people. The urban–rural profile of the country is found as rural and transitional. It is possible to observe some areas displaying deep rural characters in well-developed western regions and some “prosperity spots” dispersed throughout the less-developed eastern regions. Then, regional classifications ranging from “concentrated urban regions” to “rural regions” are made at the NUTS 1 level. Finally, the results are evaluated in perspectives of spatial planning of Turkey and entering process to the EU.  相似文献   
56.
57.
58.
59.
The first attempts to identify amorphous organic substances in archaeology date to the end of the 19th century and the beginning of the 20th century. The 1960s saw the development of infrared spectrometry, and then separative and mass spectrometry analyses were implemented in the 1980s. But it is only since the 1990s that extended and systematic research programmes were devoted to these substances. The number of publications has not stopped growing and is becoming exponential. To get an overview of the lipid studies in archaeology, we conceived the ARchaeological Organic residues Literature Database (AROLD) as a first structured and collaborative research tool. This paper describes the challenges of setting up such a database, details its architecture, presents the choices involved in its implementation, and discusses the possibilities of sharing and evolving this tool.  相似文献   
60.
In the early 1960s the grave of a probable donor was discovered in the St Veit church in Unterregenbach, Stadt Langenburg, Kreis Crailsheim, southwestern Germany. After a re-examination, the skeleton may be regarded as clearly corresponding to the typical clinical picture of a multiple myeloma/plasma cell myeloma. The 45–55-year-old female individual shows all the characteristics of a malignant plasma cell tumour, with specific osteolytic lesions of the skull, vertebrae, ribs, pelvis, scapulae and long bones, and even-sized single defects without reactive zones on the edges. Several pathological fractures of the ribs and a vertebral compression fracture can be observed. The gnawing-mark-like features on the inner surface of the compact bone and the ‘punched-out’ lesions on the outer are distinguishing marks of a multiple myeloma.  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