共查询到19条相似文献,搜索用时 129 毫秒
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对古代服饰的研究多限于对官员等级服制或文臣服饰的领域,而唯独对武将盔甲的具体研究很少,这主要是因为盔甲服饰层次多、结构复杂,且记载较少、较难考证的缘故。为了深化该领域的研究,依据实证与论证相结合的原则,以保存较好的十三陵武石刻将为载体,对其盔甲之制与服饰做了深入的分析。明确其盔甲之制,如"凤翅盔""山文甲""人形甲""鱼鳞甲"等不同形制;具体其服饰细节,包括头盔、身甲等组成构件;并详尽比对十三陵两对武将服饰之不同。将十三陵武将极为完整的盔甲形制展现出来,对于研究明代武将服饰具有重要的应用价值。 相似文献
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从材料选择、柔性防刺层的制备、测试仪器研制和测试评价等方面,介绍了一种新型柔性复合防刺服的研制过程,并采用有限元穿刺模型和准静态防刺试验,探讨了柔性防刺服的防刺机理。结果表明,增加刀具刀刃处的高性能纤维集聚是提高柔性防刺服防刺性能的有效途径;采用超高分子量聚乙烯无捻长丝织制的细支平纹布与非织造布交替铺层制作的柔性复合防刺服,能达到较为满意的防刺性能,且重量较轻,厚度适中,产品的柔软性和舒适度得到较大改善。 相似文献
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土焙晒纸是宣纸传统制作技艺中的重要组成部分。研究者深入宣纸原产地,对宣纸土焙制作材料、制作工具、制作过程、工时与工价、土焙规格、烧焙与晒纸等进行了较为详细的实地考察研究,对宣纸土焙与当下主要采用的铁焙进行了对比分析,最后得出结论:宣纸土焙晒出的宣纸,经过千百年的历史检验,被誉为"千年寿纸",但也有某些缺陷;现代条件下采用的铁焙具有建造便捷、平面光滑匀整、劳动效率提高的优势,但也有某些缺陷。在大力倡导非物质文化遗产传承、保护的今天,从宣纸纸张历史检验对比和保持文化多样性、丰富性角度出发,建议宣纸产地应土焙和铁焙同时使用。 相似文献
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Silicate production and availability for mineral carbonation 总被引:1,自引:0,他引:1
Renforth P Washbourne CL Taylder J Manning DA 《Environmental science & technology》2011,45(6):2035-2041
Atmospheric carbon dioxide sequestered as carbonates through the accelerated weathering of silicate minerals is proposed as a climate change mitigation technology with the potential to capture billions of tonnes of carbon per year. Although these materials can be mined expressly for carbonation, they are also produced by human activities (cement, iron and steel making, coal combustion, etc.). Despite their potential, there is poor global accounting of silicates produced in this way. This paper presents production estimates (by proxy) of various silicate materials including aggregate and mine waste, cement kiln dust, construction and demolition waste, iron and steel slag, and fuel ash. Approximately 7-17 billion tonnes are produced globally each year with an approximate annual sequestration potential of 190-332 million tonnes C. These estimates provide justification for additional research to accurately quantify the contemporary production of silicate minerals and to determine the location and carbon capture potential of historic material accumulations. 相似文献
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几种磨盘材料耐磨性研究 总被引:1,自引:0,他引:1
通过对热磨机的磨盘材料不锈钢和高铬铸铁的耐磨性对比研究表明,高铬铸铁比不锈钢有更好的耐磨性。尽管材料含有相同的成分,但耐磨性也不同,是因为材料的微观结构对性能具有重要影响。同时也指出,开发的高铬铸铁制造的磨盘不需要复杂的热处理,这能简化生产工艺、节约生产成本、降低劳动强度以及提高生产效率。 相似文献
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K. Walter 《Holz als Roh- und Werkstoff》1984,42(5):181-185
The price for raw materials is the main factor in the manufacturing costs for particleoboards. Cost reductions are therefore expected first and foremost in a reduction in the use of wood. There are two ways of achieving this by either reducing particleboard, density or using less valuable wood. In fibreboard production the main cost factor is the high energy requirement for defibration. The use of fine chips instead of fibres could substantially reduce energy costs. Another cost reduction potential lies in the use of cheap raw materials such as waste paper as fibrous material. New manufacturing processes and new products had to be designed and tried out to achieve such cost reductions. This paper reports on new processing and machine techniques for the production of OSB, fibre-particleboards and gypsum fibreboard and on the technological properties of such materials. 相似文献