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   797篇
  免费   21篇
  2024年   1篇
  2023年   4篇
  2022年   20篇
  2021年   15篇
  2020年   16篇
  2019年   20篇
  2018年   24篇
  2017年   14篇
  2016年   19篇
  2015年   10篇
  2014年   13篇
  2013年   49篇
  2012年   57篇
  2011年   47篇
  2010年   38篇
  2009年   49篇
  2008年   50篇
  2007年   49篇
  2006年   58篇
  2005年   48篇
  2004年   39篇
  2003年   50篇
  2002年   39篇
  2001年   28篇
  2000年   34篇
  1999年   7篇
  1998年   2篇
  1997年   3篇
  1996年   1篇
  1995年   1篇
  1994年   2篇
  1993年   2篇
  1992年   2篇
  1989年   1篇
  1985年   1篇
  1983年   2篇
  1982年   1篇
  1980年   1篇
  1978年   1篇
排序方式: 共有818条查询结果,搜索用时 0 毫秒
1.
The site of Kharaib al-Dasht, located on the northern coast of Failaka, is a late Islamic settlement with an extensive fishing infrastructure. It has been excavated since 2013 by the Kuwaiti-Polish Archaeological Mission. The ceramic assemblage collected so far exceeds 18,000 fragments. The sherds underwent technological and typological analyses, which demonstrated a wide diversity of local common kitchen wares, consistent with the needs of households specialised in fishing. A considerable percentage of imported vessels was brought to Failaka from the Arabian Gulf and Persia, though Far Eastern luxury tableware was also attested. This paper demonstrates the socioeconomic role of Kharaib al-Dasht in the context of trade exchange on the microregional (Kuwait) and macroregional (the Gulf, South and Eastern Asia) scales in the eighteenth and nineteenth centuries.  相似文献   
2.
浑仪、简仪(以下简称两仪)在高PH、大气污染和日晒雨淋环境中的腐蚀是一种动态加速腐蚀过程。采用合成的双唑胺铜缓蚀剂和有机硅改性的甲基丙烯酸树脂,并分别复配成协同缓蚀剂群和含有增效稳定剂的封护剂。采用这两种材料和脱水后再防护的工艺,使带锈防护后的浑仪、简仪的腐蚀低于无污染大气中的速率。用电化学方法评价了防护技术的可行性,根据腐蚀与人工老化试验结果讨论了防护材料性能与腐蚀环境和带锈防护的关系,采用XPS分析方法探索了双唑胺比BTA更适用于两仪防护的原因。  相似文献   
3.
Research on labour markets has often focused on the economics of work location. Far less attention has been paid to how labour markets are constructed discursively. In this paper, I analyse how the creation of rival discourses concerning traditions of work were central elements in the efforts of two unions to structure local labour markets, in order to retain work for their members in the face of technological innovation. The struggle between the two unions centred on their abilities to construct rival discourses concerning the historical geography of work in the industry. These formed the basis for judicial interpretations concerning whether the actions of the dockers' union represented a legal work preservation action or an illegal work acquisition measure. Such interpretations shaped the subsequent evolution of work and labour markets in the industry. The ability of economic actors to shape discourse in their favour can be a powerful force in the regulation of local labour markets, and thus in the production of economic landscapes.  相似文献   
4.
The chronology of the period is briefly considered in the light of the dendrochronological results which have appeared in recent years. Patterns of settlement history in different parts of the area are then examined, and it is suggested that in some of them the late fourth millennium was a period of population decline which was not reversed until the Early Bronze Age, 1000 years later. Detailed information about specific local occupation patterns is provided by recent work on the circum-Alpine lake villages. Changes in cultural patterns during the period, especially the appearance of the Corded Ware, are discussed and explanations of them reviewed. It is argued that changing patterns of gender relations were a major feature of the period, linked to processes which eventually led to the development of small-scale chiefdoms. The development of copper and bronze metallurgy and its connection to these processes are discussed.  相似文献   
5.
滕州前掌大墓地中随葬兵器的墓葬较多,特别是女性墓葬中随葬兵器的现象较之于其他地区更为多见亦罕见于海岱地区。产生这种现象的原因可能与商末周初时女性社会地位较高和前掌大地处战事频繁的东夷重地有关,也许正因如此,前掌大墓地的女性生前可能参与作战。  相似文献   
6.
In the early 1970s, the Conference on Security and Cooperation in Europe (CSCE) was the cornerstone of French foreign policy regarding East-West relations. It was considered by Paris as the best way to maintain dialogue with Moscow as well as an instrument to reach the Gaullist goal of overcoming the European status quo. This double objective explains why the French adopted an ambiguous attitude during the CSCE: even though their goal was to challenge the Brezhnev doctrine and initiate a process to meet the aspirations of peoples under Soviet domination, they knew that this would be a lengthy process. For them, it was necessary to avoid provoking the Soviets by putting forward expressively liberal proposals. The French leaders of the 1970s saw the CSCE as the multilateral prolongation of the Gaullist policy of ‘détente, entente, cooperation’.  相似文献   
7.
岭南地区秦汉时期的铜提筒在当地越文化中具有代表性。江东地区西周春秋时期的墓葬或遗址中常出土一类带提耳的原始瓷筒形器,其造型独特,纹饰繁复,在尺寸、器形等方面与铜提筒多有相似之处。从浙江德清火烧山原始瓷窑址出土的一批标本器入手,对这一类筒形器重新进行类型学分析,然后就其主要的功能性因素与岭南铜提筒进行比较研究,可以明确二者的相关性,进而归纳出此类提筒形器在春秋以后南方各地出现的规律。该形制可能并非被动传播的文化因素,而是百越文化背景下各地的统治阶层在特定的社会历史环境中,为凝聚族群认同,维护统治利益,而对文化因素和器物形制作出主动选择和"策略性操控"的产物。  相似文献   
8.
北京大学入藏的秦代水陆里程简册中记载秦代有"阳"县存在,关于这一新出现的秦县,前辈学者认为可能是位于今河南省方城县的秦汉"阳城"。然而,从简册中记载的"阳"县下属各乡到其他地区的距离来看,"阳县"不太可能在今方城附近,而更有可能是位于先秦"唐"国故地的"唐"县。其他出土材料所见的"唐"县一般写作"阳",清华简《系年》中还有楚国曾灭"唐(阳)"置县的明确记载。秦代的阳县应该就是继承了楚灭唐国之后所设的阳县。  相似文献   
9.
《中华人民共和国非物质文化遗产法》("非遗法")颁布实施以后,我国已就非物质文化遗产(非遗)传承人权利保障相关问题进行地方法制实践。这些地方立法不仅保留了"非遗法"相关规定之精华,同时亦在此基础上进行了创新。这些地方法制的做法不仅具有正当性,还具有诸多亮点和启示。为缓解非遗领域不同位阶法律适用冲突以及平衡、协调非遗传承人权利与义务之间关系,"非遗法"应就非遗传承人权利保障机制等问题进行规定,以最终实现非遗法律体系形式功能与实质功能的统一。  相似文献   
10.
In the Iberian Peninsula, the copper metallurgy from the Chalcolithic to the Middle Bronze Age (MBA) was mostly characterized by low arsenic contents. A collection of 53 MBA artefacts from southern Portugal was analysed by micro‐EDXRF, optical microscopy, SEM–EDS and Vickers to investigate the metal composition and manufacture. No technological distinction was found between artefacts from domestic and funerary contexts, which were radiocarbon‐dated to 2000–1500 cal bc . The arsenic contents of almost 100 MBA artefacts from this region, including the above‐mentioned set, have a Gaussian distribution with a high average (3.9 wt% As). Possible explanations are discussed for this distinctive metallurgy at the south‐western end of the Iberian Peninsula.  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