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排序方式: 共有394条查询结果,搜索用时 15 毫秒
1.
目前关于中华人民共和国的国徽图案有这样两种说法:一是国徽上的图案是谷穗,如《辞海》中指出:中华人民共和国国徽,中间是五星照耀下的天安门,周围是谷穗和齿轮。一是国徽上的图案是麦稻穗,如蒋建华主编的《中华人民共和国资料手册》中指出:中华人民共和国国徽的内容为国旗、天安门、齿轮和麦稻穗。那么,国徽上的图案到底是谷穗还是麦稻穗呢? 相似文献
2.
本文讨论了上海博物馆藏战国楚竹书《容成氏》里的“酋清”的“酋”和“夹州”的“夹”两个字,认为它们古音分别和“淑”和“冀”字相近,“酋清”应当读为“淑清”,“夹州”就是文献中的“冀州”。 相似文献
3.
Cheng Lei Meng Hui Zhang Shi Qiang Fang 《International Journal of Architectural Heritage》2015,9(8):942-948
Ancient mortars played a crucial role in the construction of historical architectures due to their physical and chemical compatibility with traditional building materials such as stones and bricks. Therefore, the analysis and optimization of the ancient mortar formula are significant in the restoration and preservation of historical sites. In this work, 20 mortar samples selected from five ancient stone pagodas in Zhejiang Province, China, were analyzed. The results showed that mud, lime-soil mortar, lime-sand mortar, and lime-gypsum mortar were used as binders in these pagodas. The Ca(OH)2/aggregate ratio ranging from 0.3 to 2.7 was usually used to prepare lime mortar. Protein and polysaccharide were also found in some samples. 相似文献
4.
Wei She M. R. Jones Yunsheng Zhang Xing Shi 《International Journal of Architectural Heritage》2015,9(7):775-793
The Hui-style residence is an important architectural heritage of China. The hollow wall structures are widely used to build its exterior wall system. However, the thermal performance of the hollow wall is no longer able to meet the new energy-saving and environmental requirement. This article describes a laboratory study of the development of foamed mortar (FM), with the potential for use in thermal upgrading of the Hui-style hollow wall system without dramatically changing its traditional structure. The key early age, physical, mechanical and thermal properties were systematically measured. Two extended models were respectively developed to calculate compressive strength and thermal conductivity, as a function of porosity. Environment chamber test was also employed to investigate the effectiveness of this novel thermal upgrading approach and the results show that filling the voids with FM can effectively improve the overall thermal resistance of the hollow wall system by 44%, which is almost equal to the overall thermal resistance when using the more expensive commercial inorganic stucco system. In addition, the combination of these two methods yielded an overall thermal resistance of 0.701 m2·K/W, which is even higher than 0.67 m2·K/W for the code required in the hot summer/cold winter climate zone. 相似文献
5.
<正>On the snowy highland,the splendid view of mountains and waters vie with each other;the birds and beasts stroll idly as in a courtyard,and the flourishing woods and grasses stretch as far as the eyes can see.Is"Shambhala"a fairyland?Over the years,the central government and Tibet have focused on protecting the highland ecology and have attained impressive achievements.Under the blue sky 相似文献
6.
Shi Jinsong 《Acta Archaeologica》2019,90(1):81-109
The Chinese Bronze Age culture from the 19th to the 1st century BC can be divided into four zones: the Central Plain in the middle and the lower Yellow River region; the Northern zone along the Great Wall; the Southern zone, south to the middle and the lower Yangzi River; the Southwestern zone covering the upper Yangzi River. In each zone, bronzes are not only different in types and styles but also function differently responding to the processes of the early state formation and social development. More precisely, in the first zone, there are mainly ritual bronzes, serving as symbols of the social and political hierarchy. In the second zone, there are mainly utilitarian items such as weapons, tools, bronzes of everyday use, ornaments, as well as horse‐chariot fittings. Bronze musical instruments characterise the third zone. And bronzes of the fourth zone are realistic or symbolic in style, depicting scenes of social life. Though having different cultural origins and characteristics, the four zones communicate with and influence each other continuously, creating a dynamic cultural landscape of the Chinese Bronze Age. 相似文献
7.
本文论述清代帝陵中的哑巴院和月牙城的建置与功用,进而探讨其规制的起源问题。指出关外的福陵与昭陵系参照北京明代后期的帝陵及清孝陵兴建,而南京明孝陵的规制已见哑巴院的雏形,其发展演变脉络清晰,故而哑巴院和月牙城并非明清两代帝陵规制最显著的差别。 相似文献
8.
9.
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
10.
旅游目的地形象认知过程中的"先入为主"与"既成事实"效应研究--以银川沙湖与榆林红碱淖为例 总被引:10,自引:1,他引:10
旅游者对旅游目的地的形象认知是影响旅游活动的重要因素,对旅游目的地形象定位和市场营销策略的选择都具有重要的参考价值,逐渐成为旅游研究的新热点。本文选取了我国几个代表性的案例,逐步展开分析,提出若干个相应的假设,据此设计了调查问卷,在兰州、西安两地开展了抽样调查。本文应用国际通用的科学方法和规范模式对抽样调查结果进行分析,根据分析结果对旅游者对旅游目的地形象认知中的“先入为主”与“既成事实”效应进行了探讨,强调了旅游形象定位与市场营销中的先发优势。 相似文献