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浏览/检索结果: 共3条，第1-3条 帮助 已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择发表日期升序发表日期降序作者升序作者降序提交时间升序提交时间降序题名升序题名降序 医用钛表面微-纳米结构的构筑及其生物性能的研究 学位论文 2012, 2012 姜品良 收藏  |  浏览/下载：3/0  |  提交时间：2016/02/14 表面构筑  微/纳米结构  浸润性  耐蚀性  生物矿化  细胞活性  Surface constructions  Micro/nano structure  Wettability  Corrosion resistance  Biomineration  Bioactivity   Control Standard of Ground Surface Settlement Induced by Running Tunnel Construction in Beijing Subway 会议论文 2011 International Conference on Applied Mechanics, Materials and Manufacturing, ICAMMM 2011, Shenzhen, China, November 18, 2011 - November 20, 2011 作者:  Zhang, Chengping;  Li, Limin;  Li, He;  Wang, Jianchen 收藏  |  浏览/下载：2/0  |  提交时间：2019/12/24 Construction measures - Control standards - Control valves - Ground settlement - Ground surface settlements - Neighboring building - Research results - Subway constructions - Tunnel construction   Developing of in-suit long trance profiler for testing slope error of aspherical optical Elements (EI CONFERENCE) 会议论文 ICO20: Optical Devices and Instruments, August 21, 2005 - August 26, 2005, Changchun, China Zhou C.; Li H.; Chen C.; Zhou C.; Qian S. 收藏  |  浏览/下载：25/0  |  提交时间：2013/03/25 Profile error of super smooth surface of optical elements at X-ray/EUV in synchrotron radiation (SR) light beam line is described as slope error of them generally. The Long Trace Profiler (LPT) is used for testing surface slope error of SR optical elements in world generally. It is requisite to use In-suit LTP measuring surface thermal distortion of SR optical elements with high heat under high bright SR source. Authors design an In-suit LTP by means of co-path interferometer with pencil light beam. The instrument not only can be used for testing slope error of mirrors in Lab. also in situation test the distortion of mirror with high heat load at synchrotron light beam line. The device can be used to test various absolute surface figures of optical elements such as aspherieal  spherical and plane. It is needless standard reference surface. It is named by LTP-III. This paper describes its basic operating principle  optical system  mechanical constructions  DC serve motor control system  array detector  data acquisition system and computer system for controlling and data analysis of LTP-III. The Instrument has advantages of high accuracy  low cost  multifunction and wide application. Length of surface measured of optical element accuracy is 0.04 arcsec.