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1.
四川省馆藏文物保存环境监测区域中心(简称四川区域中心)平台,经过两年多的运行实践,实现了12家博物馆监测站的集成联网。本研究分析了区域中心监测平台运行中常见故障现象的表现形式、故障原因及故障率。结果表明:监测平台的主要故障现象为传输异常和数据异常;除温湿度外的其他监测终端故障率较高;软件平台建设也不够完善,导致数据利用率低,尚不能实现风险评估、预测预警和预防调控等管理功能。针对分析发现的问题,提出一些相应的技术措施和管理措施,为有效降低故障的发生率,提升国内区域中心平台建设提供一定的指导和参考。  相似文献   
2.
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   
3.
ABSTRACT

Nuclear cooperation has been a consistent feature of the Australia-US alliance. In the 1950s and 1960s, Canberra explored transferring US nuclear weapons to Australian forces operating in Southeast Asia. Since the 1960s, Australian governments have supported hosting joint facilities that contribute to America’s ability to execute global nuclear operations. And Australia has regularly invoked the nuclear umbrella as part of the alliance. We explain the key sources of nuclear cooperation in the alliance by leveraging realist and institutionalist theories of alliance cooperation. While realism explains limits to US nuclear commitments in the 1950s, institutional explanations are more relevant in pinpointing the sources of nuclear cooperation and in explaining why Australia has often achieved its policy preferences as the junior partner.  相似文献   
4.
清代皇家雅曼达噶神坛丛考   总被引:1,自引:0,他引:1  
“雅曼达噶”即大威德金刚,是藏传佛教重要的护法神。本文考证了乾隆时期所建的七处皇家“雅曼达噶坛”,分析了神坛的建筑特点与文物陈设状况,理清了这种重要的佛堂模式的特点。同时探讨了清富神坛与西藏寺庙的渊源及乾隆与藏传佛教的关系。藏传佛教中神灵众多。有一个庞大的神系。乾隆皇帝建七处雅曼达噶坛。说明了清宫廷对保护神大威德的特别崇拜,这种做法来自藏传佛教格鲁派的直接影响。由此种神坛之模式可见藏传佛教曾对清代宫廷的文化环境产生过深刻的影响。  相似文献   
5.
18世纪末英国马戛尔尼使团访华,是中英关系史上重大的历史事件。英国国家图书馆保存有随团制图员亚历山大绘制的一份完整的访华见闻图。由于绘图者视角的特殊性,这批绘画成为研究当时中国社会不可多得的形象史料。画家描绘了各个阶层、各种职业的人物肖像,也描绘了交通工具、建筑、军事、运河等场景。从社会学角度反映了当时中国的生活状况,以及中英在军力、船舰、生产方式、宗教风俗等多方面的差异。  相似文献   
6.
Segments from the Howiesons Poort of Sibudu, South Africa, can be separated into at least three populations based on quartz, hornfels and dolerite rocks used for their production. Length, breadth, thickness and tip cross-sectional areas are significantly different between segments made on the three rock types. Segments are not monoliths, and they were not intended as a single tool type, they were flexible enough to be mounted to shafts in a variety of ways. Several hafting strategies are evident, including the use of different adhesive recipes. Most segments were probably parts of hunting weapons, based on use trace analysis, but weapon types varied. Quartz segments have standardized shapes (short and deep), perhaps because they were hafted as transverse arrowheads. While hornfels and dolerite segments may on occasion also have been parts of projectiles, the large dolerite segments could sometimes have served as parts of spearheads, with two segments hafted back-to-back. Howiesons Poort segment technology is sophisticated; its makers appreciated distinct properties of rocks, their flaking, wear and impact possibilities. Further, they recognized the best sizes and shapes for use with each kind of weapon, they understood the qualities and applications of various adhesive recipes, and they knew how to make a variety of hafts from materials that included bone and wood.  相似文献   
7.
与历代诸多代人受刑的案件相比,清代命案中的顶凶案件有其自身的特点。顶凶案发生的原因和情节错综复杂,成为一种危害深重的畸形社会现象。发生时间表现为乾隆以降,数量逐渐增多;发生区域以福建、广东地区的械斗顶凶案件最为典型;立法过程表现为例文与司法的相互调适并趋向宽纵。从一手史料出发,对顶凶案件背后的生成机制和司法实践进行探寻和考证,可以在一定程度上揭示清代社会民众的政治生态、文化心理和价值取向,透视出官方与民间的互动实态。  相似文献   
8.
为了解巴蜀青铜兵器的制作技术及表面斑纹形成机理,采用金相显微镜分析,扫描电镜及能谱仪对成都市博物院的几件带斑纹的馆藏青铜兵器进行了分析。结果表明,两件截面样品均为青铜铸造组织,锡含量平均为11%。三件器物表面斑纹层均含锡和铜并具有一定抗氧化作用。斑纹工艺可分为二类:剑周99-1极可能为直接铸出凸凹不平的剑体,在凸起部位涂高锡合金膏剂,加热处理后得到。另一类可能先直接铸出金属基体,在欲成斑处涂抹合金膏剂或纯锡,加热处理打磨得到。分析结果可为深入研究巴蜀青铜兵器提供参考。  相似文献   
9.
10.
ABSTRACT

This paper argues that even when India had posited its peaceful nuclear explosion (PNE) of May 1974 as a mark of resistance against a prejudiced nuclear order based upon the NPT, India's policies in the post-PNE period confirmed with many aspects of the emerging non-proliferation consensus. India's response was guided by two major factors. On one hand, were its long-held principles such as the right to peaceful uses of nuclear energy (including PNE's) and the right to nuclear technology cooperation for peaceful purposes. On the other hand, were the pragmatic policy choices it had to make as advanced nuclear states worked towards a stricter non-proliferation regime. In this struggle between India's principles and its necessities, India's nuclear behavior was guided much more by pragmatism rather than by its normative preferences. Yet, even when India made major compromises on its nuclear principles in private, in public India stuck to the rhetoric of its principled opposition to the NPT regime. These tensions between India's actual practice and its public policy are evident on three major non-proliferation issues: nuclear safeguards, export controls and the danger of nuclear proliferation in its neighborhood.  相似文献   
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