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冷冻干燥法制备多孔陶瓷研究进展 总被引:1,自引:0,他引:1
冷冻干燥法作为一种制备多孔材料的技术在过去的十多年中发展迅速, 尤其是通过此法制得的多孔陶瓷展现出独特的微观结构和优良的力学性能, 引起了各国学者极大的研究兴趣, 成为当前多孔陶瓷的一个研究热点。 本文目的是回顾冷冻干燥技术的发展历史, 详细介绍了冷冻干燥技术的基本原理、特点, 工艺过程的影响因素, 以及潜在应用, 并指出了冷冻干燥法的发展趋势。 相似文献
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冷冻干燥技术是制备纳米铁粉的一项非常重要的技术。超细铁粉(60~1180)在空气中很稳定并具有显著的磁性能,它是由超细赤铁矿粉(30~50)在200℃还原制成的,而这种超细赤铁矿粉又是由冷冻干燥氮化铁前驱体分解制备的。冷冻干燥工艺显然是生产和开发低成本的磁性记录和“抛弃”铁催化剂等颗粒媒质的先进方法。从冷冻干燥前驱体合成纳米铁粉@E.Bermejo 相似文献
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蛋白质药品冷冻干燥技术研究进展 总被引:13,自引:0,他引:13
陈光明 《制冷空调与电力机械》2003,24(2):1-7
冷冻干燥技术是制备固体蛋白质药品的常用方法。本文综述了蛋白质药品冻干保护机理、冻干工艺、冻干机的研究进展,并提出了优化药品冷冻干燥过程,提高药品的稳定性和经济性的研究思路。 相似文献
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进入21世纪以来,CTP技术已得到广泛的推广和应用,我国CTP技术的发展基本上与国际同步,近年来CTP版的发展一直是强势的,不管是热敏CTP版、紫激光CTP版,还是UV-CTP版,都在不断的发展。CTP系统是高技术、高投入、高附加值的技术密集型行业,我国有关部门也在积极开发,进展迅速,本文全面概述其进展情况和发展前景。 相似文献
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Concept of zoology energy is advanced, zoology energy development trend line and zoology energy development curve of construction project are traced out in this paper. From the point of construction project itself, its adaptability can be shown in its own strong zoology energy, dominant in zoology energy sequence of its engineering population, great niche breath and less superpostion
(overlap) in its engineering community. Adaptability of construction project is researched from the angle of ecology which can be taken as basic research of consistent development of construction project, and enrich evaluation system of construction project. 相似文献
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目的为提升踝足矫形器(Ankle-Foot Orthosis,AFO)的设计研究水平,介绍了AFO在医疗领域中的应用及国内外研究进展,综述其设计发展趋势。方法概要性阐述AFO的型制分类方式,以其设计特性为基础,梳理近年来相关设计发展研究取得的成果,归纳AFO发展过程的主要应用技术,并依据智能医疗技术发展的现实落点,系统地探讨了AFO设计的发展方向、关键技术及相互间的关系。结论在AFO设计发展中,产品的功能结构、应用材料、应用技术等方面极大地促进了其设计质量的提高,针对设计和科学技术的融合发展,提出了智能化设计、人机交互是AFO设计的发展趋势,也是未来应用研究的热点和难点。 相似文献
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The inception of radioisotope and its application in China are introduced. The research,development, production, application progress and the future development prospect of radioisotope and its products are described. 相似文献
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This article analyses the recent progressive increase in resourcequantity and production quantity of unconventional natural gas in China, describes its natural properties and the concepts, strategies and approaches of its development, summarizes the special techniques, management concepts and development modes formed in the process of its development, and puts forward proposals to accelerate the development of unconventional natural gas of China. The technically recoverable reserve of unconventional natural gas is 1.7 times that of conventional natural gas and its output in 2012 accounted for 41.8% of the total output in China. Chinese tight gas development has gained success, coal-bed methane development and shale gas production pilots have made important progresses. As the key feature of unconventional natural gas is "low grade", for the effective scale development, developers must build up the engineering concept of low-grade resources development, adhere to the low cost strategy, take the development route of "a step backward and then a step forward", apply such ideas and methods of engineering management as low cost dualistic integrative innovation, full control network management, economic limit theory, integrated operation and "four orientations" engineering management, establish a "two lows" engineering management system, and take reference of the successful development mode of the tight gas in Sulige and the coal-bed methane in the Qinshui basin. In order to achieve the objective of rapid development of nonconventional natural gas in China and to accelerate the development pace, the government should continue to increase support, to speed up the reform of natural gas price adjustment, to set up national comprehensive development and utilization demonstration areas, to input in sustainable technological research and to promote engineering management innovation.? 相似文献
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对现代医学影像技术的网络化发展趋势、国内外的发展动态和特点进行了概述和分析。对现代医学影像技术网络化发展的主要发展方向和需要解决的问题进行了预测。 相似文献