共查询到20条相似文献,搜索用时 15 毫秒
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AbstractSpace technology is not only one of the major subjects of this spacious and gracious new Museum on Washington's Mall, it also contributed greatly to its record construction programme and it opening ceremony. Above all its designers hope that 85 complex audio-visual exhibits will perform faultlessly thanks to MACS, the Museum Automatic Control System. This central computer control unit, complete with its space-age back-up system, constantly monitors the performance of all moving exhibits, whether puppets, films or slides. Any fault is detected instantly and thus can be repaired quickly. 相似文献
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Aviad Agam Naama Walzer Heeli C. Schechter Katia Zutovski Ianir Milevski Nimrod Getzov 《Journal of Field Archaeology》2016,41(6):713-730
A unique Pottery Neolithic context corresponding to the Wadi Rabah culture was found at the multi-layered site of Ein Zippori, Israel. Given the significant amount of flakes, cortical flakes, thinning flakes, and bifacial tool rejects, it was classified as a refuse pit in which bifacial knapping waste from a nearby workshop was disposed. In this paper we present the assemblage of Locus 8071, focusing on the by-products of bifacial tool manufacture and maintenance as well as bifacial tool rejects. We reconstruct the bifacial knapping and maintenance procedures and suggest that Locus 8071 was a disposal area for by-products from a knapping workshop of bifacial tools—an aspect of spatial organization related to possible specialized lithic production at Ein Zippori during the Neolithic period. 相似文献
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Dykstra RR 《美国史评论》2003,31(4):554-563
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Will Soper 《American Nineteenth Century History》2017,18(1):19-44
In October 2016 the Congressional Research Service published its latest version of “Instances of Use of United States Armed Forces Abroad.” One of the “instances” occurred in 1854, and the entry reads in its entirety: “Naval forces bombarded and burned San Juan del Norte (Greytown) to avenge an insult to the American Minister to Nicaragua.”1 The following article posits that Greytown was not destroyed to avenge an insult to an American diplomat. Rather, two groups of prominent American businessmen used this and related events and their antecedents as pretexts to enlist the federal government in destroying Greytown. One group, representing a U.S.-owned isthmian steamboat company, sought to seize the port of Greytown as a private fiefdom; the other wanted it as the prospective capital of a new colony based on a huge, dubious land grant they owned. 相似文献
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《Byzantine and Modern Greek Studies》2013,37(2):182-200
AbstractThis article sheds light on a neglected aspect of the Greek paroikia of Odessa, its female component, in the late imperial period. By revisiting the 1897 All-Russian Census, it offers an insight into the demographic and social features of Greek women, and depicts their occupational position. It shows that middle-class and working women formed the majority of the Greek female workforce and suggests that their participation or non-participation in the labour market depended on the ability of the male breadwinner to support his household financially. 相似文献