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浏览/检索结果: 共9条,第1-9条 帮助

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The trunk replaces the longer mandible as the main feeding organ in elephant evolution 期刊论文  OAI收割
ELIFE, 2024, 卷号: 12, 期号: 1, 页码: 22
作者:  
Li, Chunxiao;  Deng, Tao;  Wang, Yang;  Sun, Fajun;  Wolff, Burt
  |  收藏  |  浏览/下载:21/0  |  提交时间:2025/01/03
Research on Shock Acceleration Limit of an Ultra-Stable Optical Cavity for Space Applications Based on the Finite Element Methodology 期刊论文  OAI收割
CRYSTALS, 2021, 卷号: 11, 期号: 8, 页码: 10
作者:  
Xu, Guanjun;  Jiao, Dongdong;  Chen, Long;  Zhang, Linbo;  Liu, Jun
  |  收藏  |  浏览/下载:63/0  |  提交时间:2021/11/29
Analysis of Vibration Sensitivity Induced by the Elastic Deformation of Vertical Optical Reference Cavities 期刊论文  OAI收割
IEEE ACCESS, 2020, 卷号: 8, 页码: 194466-194476
作者:  
Xu, Guanjun;  Jiao, Dongdong;  Chen, Long;  Zhang, Linbo;  Dong, Ruifang
  |  收藏  |  浏览/下载:32/0  |  提交时间:2021/11/29
A conservative stable finite element method for Stokes flow and nearly incompressible linear elasticity on rectangular grid 期刊论文  OAI收割
JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS, 2017, 卷号: 323, 页码: 53-70
作者:  
Chen, Yuyan;  Zhang, Shuo
  |  收藏  |  浏览/下载:24/0  |  提交时间:2018/07/30
A stable and scalable hybrid solver for rate-type non-Newtonian fluid models 期刊论文  OAI收割
JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS, 2016, 卷号: 300, 页码: 103-118
作者:  
Lee, Young-Ju;  Leng, Wei;  Zhang, Chen-Song
  |  收藏  |  浏览/下载:23/0  |  提交时间:2018/07/30
Study of horizontal shafting with spherical four-way structure (EI CONFERENCE) 会议论文  OAI收割
2012 International Conference on Optoelectronics and Microelectronics, ICOM 2012, August 23, 2012 - August 25, 2012, Changchun, China
作者:  
Yang L.;  Yang L.
收藏  |  浏览/下载:35/0  |  提交时间:2013/03/25
Altazimuth photoelectric theodolite level shaft U-type and T-type structure  but with the expanding field of applications of photoelectric theodolite  the horizontal shaft structure occur great changes. For example  in the marine environment  shipboard conditions  the instrument has a waterproof  corrosion-resistant  easy maintenance and other functions  while carrier-based optoelectronic devices from a single visible television configure the development of integrated infrared system and ranging system as one of the single-station measurement system  due to the spherical structure has sufficient internal space exactly adapted to this need. In this paper  the horizontal axis of a spherical four-way structure. From aspects of the spherical four-way split in the form and shafting design and finite element analysis of the detailed design. A spherical four-way horizontal axis system  diameter 550mm  weight 19kg sphere  in the 40kg load  the maximum deformation of 3.3m  fully meet the requirements. The shaft of the structure of the shaking is less than 2 arc seconds  the vibration test  the re-examination instrument accuracy change is less than 1 arc seconds. Verify that the structure is stable and reliable. 2012 IEEE.  
Application of particulate reinforced aluminum matrix composite in airborne photoelectric turret (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Electric Information and Control Engineering, ICEICE 2011, April 15, 2011 - April 17, 2011, Wuhan, China
作者:  
Wang P.
收藏  |  浏览/下载:31/0  |  提交时间:2013/03/25
In order to design and manufacture more excellent airborne photoelectric stable turret  modulus of elasticity of 213 GPa and thermal expansion coefficient of 7.9106/K. The frame has decreased the maximum deformation by by 60% and increased the fundamental frequency by 65% as compared with those of aluminum alloy materials  a new type of aeronautical material-particulate reinforced aluminum matrix composite (SiC/Al composite) is investigated. Several crucial technologies  respectively as shown by finite element analysis results. Those are confirmed by vibration test furthermore. Therefore  such as pressureless infiltration technology  a significant lightening effect is achieved and the thermal control load is also reduced. The test result indicates that the stable accuracy of the system achieves 19.8rad and the optical-axis parallelism of pay load is 0.1mrad. The research applies the SiC/Al composites to airborne photoelectric platforms  interface reaction controls and plate's welding are systematically studied. Then  which makes a effective exploration for the new aeronautical material's application. 2011 IEEE.  using SiC/Al composites  the airborne photoelectric stable turret frame is successfully prepared in density of 2.94 g/ cm3  
Preconditioners for higher order edge finite element discretizations of Maxwell's equations 期刊论文  OAI收割
SCIENCE IN CHINA SERIES A-MATHEMATICS, 2008, 卷号: 51, 期号: 8, 页码: 1537-1548
作者:  
Zhong LiuQiang;  Shu Shi;  Sun Dudu;  Tan Lin
  |  收藏  |  浏览/下载:27/0  |  提交时间:2018/07/30
Implicit-explicit multistep finite element-mixed finite element methods for the transient behavior of a semiconductor device 期刊论文  OAI收割
ACTA MATHEMATICA SCIENTIA, 2003, 卷号: 23, 期号: 3, 页码: 386-398
作者:  
Chen, W
  |  收藏  |  浏览/下载:13/0  |  提交时间:2018/07/30