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排序方式: 共有163条查询结果,搜索用时 15 毫秒
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C. N. Duckworth R. Córdoba de la Llave E. W. Faber D. J. Govantes Edwards J. Henderson 《Archaeometry》2015,57(1):27-50
Twenty‐six samples from domestic assemblages of 9th–12th century Córdoba were subjected to electron microprobe analysis. The results reveal two main compositional types. The first, encountered in 13 of the samples, seems to result from the combination of plant ashes with high‐impurity sand, and has some contemporary parallels from Syria and Egypt. The second type is a lead–soda–silica glass, encountered in a relatively high proportion of the glasses (11 of the 26 sampled), possibly formed by the addition of lead metal to existing glasses and with very few known parallels. These are among a very small number of results available to date on the chemical composition of glasses from medieval Spain, and the presence of a high proportion of lead–soda–silica glasses is particularly interesting, possibly indicating a technological practice unique to, or originating in, the western Muslim world. 相似文献
13.
V. Kemp K. Schmidt W. Brownscombe K. Soennecken D. Vieweger J. Häser A. Shortland 《Archaeometry》2020,62(6):1164-1181
Fourteen glass objects recovered from excavations at the ancient city of Tall Zirā‛a, Jordan, were analysed using laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) to determine the period and origin of manufacture. The composition of glasses manufactured in the Late Bronze Age (LBA) and Iron Age are distinctly different, therefore major element analysis can be used to distinguish between the groups relatively easily. The LA-ICP-MS analysis provided quantitative trace element data which were used to determine the provenance of those glasses identified as LBA. This research discusses the implications of the presence of both Egyptian and Mesopotamian LBA glasses and examines the varying compositions and colour strategies employed in both the LBA and Iron Age objects. Specifically, glass in the LBA was considered to be one of the highest status items attainable, playing an instrumental role in diplomatic gift-giving. When considered with the archaeological information, the significance of these finds at Tall Zirā‛a indicates that this city was a settlement of high status, not primarily a convenient trading stop on the Transjordan route. 相似文献
14.
The study analyses the chemical composition of 57 glass samples from 40 beads discovered at 20 archaeological sites in Poland. The beads are dated to Hallstatt C–Early La Tène periods (c.800/750–260/250 bce ). Analyses were carried out using laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS). Two groups were distinguished among the glasses based on the MgO/K2O ratio: high-magnesium glass (HMG), five samples; and low-magnesium glass (LMG), 52 samples. The former were melted with halophyte plant ash, the second with mineral soda. These glasses were produced in the Eastern Mediterranean (more likely in Mesopotamia or Syro-Palestine than in Egypt) and transported in the form of semi-products to secondary glass workshops in Europe. Some of the white opaque glass was coloured and opacified in Europe. 相似文献
15.
本文利用激光拉曼光谱仪和能量色散X-射线荧光光谱仪对21件取自故宫博物院院藏宋代官窑完整器及42件取自杭州老虎洞官窑窑址的青瓷样品表面釉层进行了测量与分析。通过计算瓷釉样品拉曼光谱中位于500cm-1附近宽带与位于1000cm-1附近宽带的面积比值(Ip值)及利用EDXRF分析样品的元素成分,讨论了这些样品的主要助熔剂成分Ca O、K2O含量与Ip值之间的关系,并通过对成分具有两类典型官窑瓷器釉料特征且在不同烧成温度下烧制的模拟釉块进行拉曼分析,对宋官窑青瓷样品的釉烧温度进行了讨论。 相似文献
16.
论文对加拿大二线城市卡尔加里和爱德蒙顿华人新移民的主要特点、移民动机和融合过程中的主要障碍进行了分析,探讨了新移民在加拿大向下层社会流动的问题。研究显示,新移民在经济融合过程中遭遇多方面的障碍,尤其在就业和语言方面。他们在移民加拿大之后,经历了去技能化和以前的学历和工作经验贬值,促使他们向下层社会流动,而这种状况反过来又阻碍了他们的融合进程。华人新移民的负面经历可以归因于由玻璃大门、玻璃房门和玻璃天花板构成的"三重玻璃效应"。加拿大政府应采纳融合框架政策,除承认移民的流动自由外,还要保证他们能享有与其他加拿大人一样同等的公民权益。 相似文献
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18.
Dánae Fiore Marta Maier Sara D. Parera Luis Orquera Ernesto Piana 《Journal of archaeological science》2008
This paper presents the results of chemical analyses of the organic and inorganic fractions of pigment residues found in three archaeological sites located in the Beagle Channel region, Tierra del Fuego, Southern South America. Twenty-one archaeological samples have been analysed through XRD, SEM–EDX, FT-IR and GC–MS in order to characterise their inorganic colouring components and to search for the presence of organic substances used as binders. Lipids found in some samples are considered as potential binders. These organic components are compared to those found in archaeological sediment samples from the same layers where the pigments have been found, in order to search for potential taphonomic contaminations of the latter by the former. Results show that such contaminations are unlikely, hence the lipid contents are deemed of anthropic origin. The pigment sample results are also compared to data from analyses of natural sediment samples collected in several localities of the Beagle Channel in order to search for potential natural pigment sources. Results show that organic and inorganic components of these sediments are not the same than those present in the archaeological pigment samples, hence the pigment raw material sources have not been yet located. All these data provide for the first time evidence of the existence of ancient activities of pigment sourcing and paint preparation with organic binders which range from 6000 BP to 1900 BP in the southernmost region of the planet. 相似文献
19.
Paul Goldberg Christopher E. Miller Solveig Schiegl Bertrand Ligouis Francesco Berna Nicholas J. Conard Lyn Wadley 《Archaeological and Anthropological Sciences》2009,1(2):95-122
Micromorphological analysis of sediments from the Middle Stone Age site of Sibudu Cave, KwaZulu-Natal, South Africa, provides
a high-resolution sequence and evidence of site formation processes of predominantly anthropogenic deposits. This methodology
allows for a detailed interpretation of individual anthropogenic activities, including the construction of hearths and bedding
and the maintenance of occupational surfaces through the sweep out of hearths and the repeated burning of bedding. This analysis
also provides a context for evaluating other studies at the site relating to magnetic susceptibility, paleobotany, paleozoology,
anthracology, and studies of ochre. 相似文献
20.
西周至南北自制玻璃概述 总被引:2,自引:0,他引:2
我国玻璃起步较晚,大体始于西周初或先周(殷末),主要是蓝色、浅蓝色或绿色玻璃珠管,与玉、玛瑙配合制成“杂佩”。其时玻璃的主要成分为二氧化硅,并含有少量铅、钡,故称为铅钡玻璃,与西方钠钙玻璃不同而独树一帜。春秋战国时期,西方蜻蜓眼玻璃珠输入我国,从此,以仿羊脂白玉美若明月的“隋侯珠”为代表的自制玻璃与外来玻璃并存。西方(大月氏)吹制玻璃术于汉魏传入我国之后,也出现了自制的空心玻璃器皿。 相似文献