全文获取类型
收费全文 | 2465篇 |
免费 | 47篇 |
出版年
2024年 | 2篇 |
2023年 | 21篇 |
2022年 | 34篇 |
2021年 | 42篇 |
2020年 | 73篇 |
2019年 | 49篇 |
2018年 | 69篇 |
2017年 | 50篇 |
2016年 | 71篇 |
2015年 | 44篇 |
2014年 | 44篇 |
2013年 | 187篇 |
2012年 | 167篇 |
2011年 | 155篇 |
2010年 | 128篇 |
2009年 | 113篇 |
2008年 | 207篇 |
2007年 | 147篇 |
2006年 | 179篇 |
2005年 | 145篇 |
2004年 | 114篇 |
2003年 | 125篇 |
2002年 | 119篇 |
2001年 | 69篇 |
2000年 | 84篇 |
1999年 | 39篇 |
1998年 | 10篇 |
1997年 | 5篇 |
1996年 | 3篇 |
1995年 | 3篇 |
1994年 | 1篇 |
1993年 | 1篇 |
1992年 | 1篇 |
1991年 | 1篇 |
1990年 | 2篇 |
1988年 | 1篇 |
1985年 | 1篇 |
1983年 | 1篇 |
1982年 | 2篇 |
1981年 | 1篇 |
1979年 | 1篇 |
1978年 | 1篇 |
排序方式: 共有2512条查询结果,搜索用时 31 毫秒
1.
2.
西周晚期至东周之初是早期史学发展过程中的一个重要节点。受西周晚期社会政治变动的影响,该时期的历史表述产生了诸多重要变化。其一为表述主题发生转变,由原来侧重表述天命、族群及周王朝的发展,转而侧重贵族家族或诸侯功业等主题,开东周诸侯国史述作之风。其二为历史表述的内容与主旨渐趋丰富多元。西周衰亡刺激时人反思历史,审视时政,开始就历史动因提出不同的解释模式,实即私人述史的一个开端。其三为述作群体扩大,人数较多的中下级贵族及普通士阶层开始成为历史表述的主体。部分贵族士大夫摆脱旧观念的约束,就历史与政治发表看法或讴歌主君,"君子作歌"之风由此而起,实为春秋家史兴盛局面的滥觞。 相似文献
3.
This article introduces our themed section on The Left(s) and Nationalism(s), which provides a comparative analysis of the relationship between nationalism and different left-wing parties in Western Europe. It highlights the innovative comparative perspectives offered by this themed section, which not only concerns a series of different geographical cases studies but also involves the ideological plurality of the Left. The larger research question that our contributors address is how different left-wing parties have dealt with the inherent ideological tension between the universality claimed by the Left and the particularism inherent in nationalism, as a doctrine and a principle of political legitimacy. The article stresses three main contributions of our themed section: (1) Western European left-wing parties do engage with the themes of nationalism and nationhood, but they often rely on convenient silence to solve some of the contradictions with their progressive ideology. (2) None of these parties have formulated thick versions of the respective national identities. (3) State-wide left-wing parties have used instrumental conceptions of nationhood to address the challenge of separatist parties, but only with mixed results. 相似文献
4.
青海大通县出土汉代玻璃的研究 总被引:1,自引:0,他引:1
本文共对12件玻璃样品进行化学组成分析.其中,部分样品还进行了密度测定,X 射线衍射分析和显微镜观察.此外,还对一颗黄色玻璃珠的表面层进行 SEM-EDX 分析.结果表明,该玻璃珠表面有金箔涂层.根据分析结果,青海大通县出土玻璃的基础成分可归为三类,即铅钡玻璃(Na_2O-PbO-BaO-SiO_2系统玻璃),钠钙玻璃和钾硅玻璃(K_2O-SiO_2系统)。此外,还对玻璃的来源进行了探讨. 相似文献
5.
Rusudan Chagelishvili George Jaoshvili Jimsher Chkhvimiani Hamed Al Mutairi 《Arabian Archaeology and Epigraphy》2021,32(1):141-151
Kuwait–Georgian archaeological work at Failaka Island showed the need for geological study. Analysis of sediments related to drinking water-collecting cisterns was performed on a Late Islamic settlement (NE part of the island) in 2018. Field sedimentological, grain size and XRD analysis of the sediment profiles showed that the shallow (about 1 m deep) cone-shaped wells are dug in the loose, porous, cross-stratified calcareous coarse-grained quartz sandstones. Three upper layers of quartz sandstones in the profile have high infiltration rate and provide a rare yet ideal material for water retention. The fourth dense layer below, composed of very fine sand and silt fraction, tends to hinder water movement and forms a relatively impermeable water-resistant surface. Thus, the distribution patterns of clay content, grain sizes and porosity of the well-hosting sediments are favourable for freshwater infiltration and harvesting. An additional petrographic analysis was conducted on different types of rocks discovered on the archaeological site, used as building material and fragments of stone artifacts to identify their origin. It was established that archaeological building material is of local origin, whereas the source rocks for stone artifacts were imported. 相似文献
6.
Inlays range among the most aesthetically pleasing and technically challenging glasses produced in the Ptolemaic period. Despite the central role of this phase in the history of glass technology, little is known about the recipes and the technological knowledge of the Egyptian artisans. This paper will thus focus on the study of the materials from the secondary workshop of Tebtynis (Fayum oasis, Egypt). We report the first multi-methodological study comprising textural, chemical, and mineralogical analyses (optical microscopy, scanning electron microscopy coupled with energy-dispersive system, electron probe microanalysis, and μ-Raman spectroscopy) on a set of 81 colorless, white, blue, and green samples carefully selected among the 800+ glasses from the craft area now stored at the Museo Egizio, Turin (Italy). Our study offers the biggest compositional database of well-dated Ptolemaic glasses currently available in the literature, highlighting some interesting novelties regarding the silica and alkali sources, and the coloring and opacifying techniques employed. The results suggest a specialized craft of traditional origin, but open to innovation and experimentation, as expected from transitional phases. 相似文献
7.
8.
Andrew Herod 《Transactions (Institute of British Geographers : 1965)》1998,23(2):177-191
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
9.
The Chemical Composition and Production Area of Early Western Zhou Proto‐Porcelain Unearthed from Yejiashan Cemetery,Suizhou, China
下载免费PDF全文
![点击此处可从《Archaeometry》网站下载免费的PDF全文](/ch/ext_images/free.gif)
The bodies and glazes of 27 early Western Zhou proto‐porcelain samples from Yejiashan cemetery, Hubei Province, were analysed using LA‐ICP–AES, SEM, XRD, a thermal expansion instrument and other analytical methods. The results indicated that the bodies of all samples were characterized by high silicon and low aluminium, and were made with porcelain stone raw materials found in the south of China. The glazes are typical of high‐temperature calcium glazes of the CaO (MgO) – K2O (Na2O) – Al2O3 – SiO2 series, with relatively high Mn and P content, which was probably caused by the addition of plant ashes. The physical properties and phase compositions of Yejiashan proto‐porcelain show that firing processes were still in the early stages of development in ancient China. Multivariate statistical analyses indicated that Yejiashan proto‐porcelain might have come from the Deqing area, in Zhejiang Province. These results provide new archaeological evidence for research on issues related to material flow in the Western Zhou dynasty. 相似文献
10.
Improvements in Archaeomagnetic Dating in Western Europe from the Late Bronze to the Late Iron Ages: An Alternative to the Problem of the Hallstattian Radiocarbon Plateau
下载免费PDF全文
![点击此处可从《Archaeometry》网站下载免费的PDF全文](/ch/ext_images/free.gif)
We present a new curve of the directional secular variation of the geomagnetic field in Western Europe between 1500 bce and 200 ce . Its computation relies on a Bayesian framework. The fast secular variation during the Late Bronze and Early Iron Ages makes archaeomagnetic dating efficient with a respective precision of 150–200 and 60–100 years during these periods. The Bayesian method also provides posterior date distributions that refine the dating of reference data, especially during the period of the Hallstattian radiocarbon plateau. Archaeomagnetism becomes a valuable alternative to radiocarbon and will help to improve the archaeological chronologies. 相似文献