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浏览/检索结果: 共16条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Discharge evolution law of debris flow based on a sharp bend physical modeling test 期刊论文  OAI收割 JOURNAL OF MOUNTAIN SCIENCE, 2024, 卷号: 21, 期号: 6, 页码: 1904-1915 作者:  Lu, Ming;  Sun, Hao;  Liu, Jinfeng;  Hussain, Abrar;  Shang, Yuqi   |  收藏  |  浏览/下载：26/0  |  提交时间：2024/08/14 Debris flow discharge  Erosion effect  Bend channel  Curvature radius   Compactness of Surfaces in R-n with Small Total Curvature 期刊论文  OAI收割 JOURNAL OF GEOMETRIC ANALYSIS, 2021, 页码: 33 作者:  Sun, Jianxin;  Zhou, Jie   |  收藏  |  浏览/下载：15/0  |  提交时间：2021/04/26 Isothermal radius  Compactness  Bi-Lipschitz parametrization  Total curvature   JOHN-NIRENBERG RADIUS AND COLLAPSING IN CONFORMAL GEOMETRY 期刊论文  OAI收割 ASIAN JOURNAL OF MATHEMATICS, 2020, 卷号: 24, 期号: 5, 页码: 759-782 作者:  Li, Yuxiang;  Wei, Guodong;  Zhou, Zhipeng   |  收藏  |  浏览/下载：13/0  |  提交时间：2021/04/26 John-Nirenberg Radius  scalar curvature equation  Blow up analysis   Temporal distortion analysis of the streak tube 期刊论文  OAI收割 acta physica sinica, 2016, 卷号: 65, 期号: 15 作者:  Hui Dan-Dan;  Tian Jin-Shou;  Lu Yu;  Wang Jun-Feng;  Wen Wen-Long 收藏  |  浏览/下载：28/0  |  提交时间：2016/10/13 temporal distortion  streak camera  radius of curvature of photocathode  slit image   Slow axis collimation lens with variable curvature radius for semiconductor laser bars 期刊论文  OAI收割 optics and laser technology, 2016, 卷号: 77, 页码: 1-5 作者:  Xiong, Ling-Ling;  Cai, Lei;  Zheng, Yan-Fang;  Liu, Hui;  Zhang, Pu 收藏  |  浏览/下载：37/0  |  提交时间：2016/01/11 Semiconductor laser  Variable curvature radius  Slow axis collimation lens  Constant phase front  Transmission angle   The effects of thermal field on radius of curvature interferometric testing 期刊论文  OAI收割 OPTICAL REVIEW, 2015, 卷号: 22, 期号: 2, 页码: 299-307 作者:  Jie, Mao;  Xi, Hou;  Fan, Wu 收藏  |  浏览/下载：20/0  |  提交时间：2015/07/10 Radius of curvature  Interferometry  Temperature field  Self-deformation   Fracture morphology pattern transition dominated by the crack tip curvature radius in brittle metallic glasses 期刊论文  OAI收割 MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2014, 卷号: 617, 页码: 89 Gao, M; Ding, DW; Zhao, DQ; Bai, HY; Wang, WH 收藏  |  浏览/下载：45/0  |  提交时间：2015/04/14 Metallic glasses  Fracture morphology evolution  Crack tip curvature radius  Shear transformation zone   A new algorithm for solving the best-fit sphere of optical aspherical surface (EI CONFERENCE) 会议论文  OAI收割 2nd International Conference on Advances in Materials and Manufacturing, ICAMMP 2011, December 16, 2011 - December 18, 2011, Guilin, China 作者:  Lin J.;  Lu M. 收藏  |  浏览/下载：40/0  |  提交时间：2013/03/25 To solve the best-fit sphere (BFS) accurately is one of the technological keys for the generating and testing of optical aspherical surfaces. This paper presents a new algorithm for solving the BFS of aspherical surfaces to suppress some deficiencies in the existing BFS algorithms. In the proposed approach  it is not only suitable for the conic surface  a BFS is constructed  but also for higher order aspheres. The obtained asphericity and material removal function is more suitable for the machining and test. (2012) Trans Tech Publications  which passes through both sides of endpoints in the section o -?xy of the aspherical surfaces  Switzerland.  the center of the BFS is shifted along the x-axis  and its radius of curvature is automatically computed. The variable step size method is proposed to speed up the convergence of the iteration. Through numerically solving the BFS of conic and cubic surface  the advantages of the proposed approach are verified. The results show that the proposed approach is of rapid convergence  and high accuracy   Study of three-mode parametric instability (EI CONFERENCE) 会议论文  OAI收割 8th Edoardo Amaldi Conference on Gravitational Waves, June 21, 2009 - June 26, 2009, New York, NY, United states Liang F.; Zhao C.; Gras S.; Ju L.; Blair G. 收藏  |  浏览/下载：21/0  |  提交时间：2013/03/25 The effect of parametric instability in advanced interferometric gravitational wave detectors is a potential problem for their proper operation. Great efforts have been made to study the onset of parametric instabilities and to find ways to control them. Here we present an experimental design for studying parametric instability in a 72 m cavity with suspended high quality fused silica mirrors. With 5 W input power and 20 kW circulation power inside the cavity  it is predicted that parametric instability will occur. The resonant condition of parametric instability can be met by thermally tuning the radius of curvature of a test mass. We will present simulation results of parametric gains for different radii of curvature of a test mass. The simulation results will provide the basis for designing the thermal tuning and observation parametric instability experiments. This will provide a test bed for studying parametric instability and its control for next generation detectors. 2010 IOP Publishing Ltd.   Athermalization of coaxial reflective space telescope (EI CONFERENCE) 会议论文  OAI收割 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, April 26, 2010 - April 29, 2010, Dalian, China Lei Z.; Guang J. 收藏  |  浏览/下载：15/0  |  提交时间：2013/03/25 This paper focuses on thermal effects  which caused by environmental temperature changes  on coaxial reflective space telescope and its solution. Curvature radius and center thickness of optical elements  and the space distance between optical elements may be changed by thermal effects. And the optical performance of the telescope may be impacted. Based on the analysis of thermal effects on coaxial reflective space telescope  athermalized design techniques are emphatically presented  the advantages and the disadvantages of the three athermalizations used currently are compared in the paper. The feasibility and effectiveness are verified by an example of a cassegrain space telescope. 2010 Copyright SPIE - The International Society for Optical Engineering.