排序方式: 共有17条查询结果,搜索用时 0 毫秒
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Zhang Qian Shi Jiaoying CaiHong CAD & CG State Key Lab. Zhejiang University Foshan Enterprise Postdoctoral Workstaion 《计算机辅助绘图.设计与制造(英文版)》1997,(2)
TwoAlgorithmsforFastPolyhedronRay-TracingZhangQianShiJiaoyingCaiHongCAD&CGStateKeyLab.,ZhejiangUniversity,310027FoshanEnterpr... 相似文献
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在室温下对铸态TiAl合金和冷轧TA15合金进行高密度脉冲电流处理。应用光学金相显微镜和透射电子显微镜研究脉冲电流处理前、后试样的显微组织。实验结果表明:通过脉冲电流处理可以细化铸态TiAl基合金的晶粒,从约1000μm的原始粗大层片组织,经脉冲电流处理后可以得到尺寸为3050μm细小、均匀的晶粒。对于冷轧TA15合金,脉冲电流处理后发生了完全的再结晶,晶粒组织由原始的α板条晶粒转变为细小的α等轴晶粒。研究结果表明,脉冲电流处理是一种有效的细化晶粒方法;由于不需要热机处理所要求的挤压等变形工序和高温加热、真空保护等条件,简化了工艺过程。 相似文献
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YIN WeiLong Center for Composite Materials Structures Postdoctoral Station of Mechanics Harbin Institute of Technology Harbin China 《中国科学:信息科学(英文版)》2010,(4)
The method for analyzing the deformation of flexible skin under the air loads was developed based on the panel method and finite element method.The deformation of flexible skin under air pressures and effects of the local deformation on the aerodynamic characteristics were discussed.Numerical results show that the flexible skin on the upper surface of trailing-edge will bubble under the air loads and the bubble has a powerful effect on the aerodynamic pressure near the surface of local deforma-tion.Then the... 相似文献
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IPv6业务技术在以IPv6为核心的下一代互联网中是关键因素之一,本文着重阐述了IPv6业务相关的关键技术、过渡期IPv6业务相关的服务器、IPv6特色业务。对存在的问题进行了分析,并对IPv6业务相关的发展给予了展望。 相似文献
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棉或涤纶织物用新型阻燃剂的合成与应用 总被引:3,自引:5,他引:3
采用环氧氯丙烷、三氯氧磷及尿素等为原料,合成了一种新型阻燃剂。该阻燃剂含有磷、氮、氯三种阻燃元素,性能稳定。按GB/T17595-1998测试,涤纶、棉等织物经该阻燃剂整理后,阻燃性能可达B1级,具有半耐久性,在交联剂存在的情况下对涤纶、棉等织物具有一定的耐久性,且对织物的强力、手感、颜色等影响较小。 相似文献
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通过引入权重最小变化量和敏感性系数等概念,研究了多目标决策中参数变化导致结果变化的临界条件,给出了方案排序对权重变化的敏感性分析方法,并通过一个实例进行了说明。 相似文献
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Guo Taotao Wang Dada Guo Tieqiao Yu Hong . Graduate Workstation of North China Electric Power University & Yunnan Power Grid Corporation . Postdoctoral Workstation of Electric Power Research Institute YNPG . 《电气》2012,(Z1):38-43
X-ray digital imaging technology has found wide application owing to its advantages of real-time, visualization and rapid imaging. In substations the substantial electromagnetic interference has some influence on the live detection by the X-ray digital imaging technology, hindering the promotion of the technology in the detection of electric equipment. Based on a large number of field tests, the author carried out a series of researches on electromagnetic interference protection measures, image de-noising, and image enhancement algorithms. 相似文献