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151.
152.
S.Pagès-Camagna 《文博》2009,(6):455-462
埃及文明在矿物方面的知识总是超出了我们的想象。这方面就包括使用多种黄色矿物绘制颜色相近的色彩。对这些颜料的准确鉴定将拓展人们在彩画方面的研究。画家所使用的颜料非常丰富,除了同时代直接从埃及地面采集的自然颜料外,还有大量像埃及蓝这类合成颜料的应用。对法国的这些藏品的研究将使人们可以追溯几个世纪以来这些颜料的演变和替代过程以及一些从其它地区尤其是东方国家引进颜料的过程。一些颜料的稳定性及其它特性使得其保存状况令人惊讶。卢浮宫博物馆在塞加拉的任务是进行一个埃及晚期(公元前378年一公元前341年)典型群葬墓的发掘工作。发掘出的木质棺材上记载了该墓葬的埋藏时间是Nectanebo二世法老执政的第2年,这是埃及第三十王朝的最后一任法老。该研究涉及以木质为基材的出土物,它包括二十个完整的或破碎成碎块的像盒子一样的棺材。研究通过在双筒显微镜下对文物进行微量取样,而后将样品进行扫描电子显微镜一能谱分析以及显微拉曼光谱分析,从而确定样品中矿物的成分。此外还对样品进行微量化学分析以确定其残存的痕量胶料。彩色颜料包括埃及彩画同时代的传统颜料一黑色,白色,红色,黄色,蓝色,绿色和镀金,同时还包括一些不常见的粉红色或橘色颜料,它是一种外来的、易碎的颜料,成分为五硫化二砷,又称雄黄。 相似文献
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Michèle Riot-Sarcey 《Revue de synthèse / Centre international de synthèse》1997,118(1):107-128
The history of women in France has not yet achieved the recognition it deserves. As a category, it is ill identified and remains on the margins of the «other» history. The history of women will remain bordeline unless we reinstate the historicity of the tensions inherent in gender relations, which up to now have been excluded as an object of study in the field of political history, which itself has been conceptualized outside the framework of power relations. A complete renewal of the way in which history is written is thus crucial. What is at stake lies between a linear, continuous history and the historical discontinuities that emerge in its gaps; between representative female individuals, as objects of representation, and the critical subjects who strain against representation as a form of power. 相似文献
155.
Catherine Larrère 《Revue de synthèse / Centre international de synthèse》1997,118(2-3):237-258
Liberty is submission only to laws. This idea, according to Turgot, is a very republican one, and it belongs indeed to the classical republican tradition. It is, nonetheless, a mostly modern idea, not necessarily a republican one. It appears in the criticism of absolute monarchy: the importance of making the law is granted, but that anybody could be above the laws is rejected. For Montesquieu, moderate monarchy is the rule of law, of standing laws which provide the individual action with the conditions its rationality requires. But Rousseau makes a republican system of the rule of law, by identifying self-government and autonomy. By linking liberty and law, he stresses the political existence of liberty: since Turgot, it has been objected, inside liberalism, that such a political device jeopardizes natural rights. 相似文献
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Antonella Pedergnana Andreu Ollé Antony Borel Marie-Hélène Moncel 《Archaeological and Anthropological Sciences》2018,10(2):369-388
Preliminary functional results obtained from the quartzite assemblage of the Early Middle Palaeolithic site of Payre (South-eastern France) are presented. In an area rich in flint, hominins at Payre also collected quartzite in their local environment, specifically along the Rhône River banks. Although the Payre lithic assemblage is largely composed of flint, quartzite was introduced in the site mainly as large cutting tools knapped outside. This fact pointed out an apparently highly differential treatment of the raw material types available in the region. A major concern is to understand the reason why. Is there any functional reason for the introduction of those artefacts, perhaps to perform specific activities related to the toughness of quartzite? Or is there any functional differentiation among the various raw materials? Use-wear analysis is a useful tool for better understanding human technological choices and strategies of lithic raw material management. Before attempting to extensively apply use-wear analysis on the quartzite assemblage, we analysed a limited sample to evaluate the general surface preservation. A specific experimental programme with the same local quartzite was carried out in order to provide a reliable comparative reference for interpreting use-wear evidence on archaeological implements. Methodological difficulties related to use-wear analysis applied to quartzite artefacts are also discussed. Both Optical light microscopy (OLM) and Scanning Electron Microscopy (SEM) were employed in this study; however, interpretations were elaborated considering principally SEM micro-graphs.The analysis of the archaeological material showed a good state of preservation of the surfaces with a low incidence of post-depositional alterations. The documented use-wear allowed us to identify the active edges, the kinematics and, more rarely, the worked material. Chopping activities were documented on two large artefacts suggesting a specific utility of those tools. 相似文献
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Pierre Labbé Pierre Pegon Javier Molina Christian Gallois Danièle Chauvel 《Journal of Earthquake Engineering》2013,17(1):101-128
The SAFE experimental programme consists of a series of 10 specimens of shear walls, with different reinforcement ratios, tested until their ultimate capacity under seismic input motion by the pseudo dynamic method. A unique input signal is used, calibrated for controlling the seismic demand. Its input central frequency is selected so that for some specimens it is lower than their eignenfrequency, while for other ones it is the opposite. In conclusion there is clear experimental evidence that design margins are much larger in the second case (input central frequency larger than structure eignenfrequency) than in the first one. 相似文献
160.