中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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浏览/检索结果: 共9条,第1-9条 帮助

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An MPs-Mesh scheme for modeling soil impacting with rigid boundaries 期刊论文  OAI收割
ACTA GEOTECHNICA, 2024, 页码: 15
作者:  
Li, Jianguo;  Wang, Bin;  Wang, Di;  Chen, Hao
  |  收藏  |  浏览/下载:1/0  |  提交时间:2025/06/27
Elastic full waveform inversion on unstructured meshes by the finite element method 期刊论文  OAI收割
PHYSICA SCRIPTA, 2019, 卷号: 94, 期号: 11, 页码: 16
作者:  
Zhang, Wensheng
  |  收藏  |  浏览/下载:88/0  |  提交时间:2019/10/28
Superconvergence analysis of FEM for 2D multi-term time fractional diffusion-wave equations with variable coefficient 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF COMPUTER MATHEMATICS, 2019, 页码: 15
作者:  
Shi, Y. H.;  Zhao, Y. M.;  Wang, F. L.;  Tang, Y. F.
  |  收藏  |  浏览/下载:60/0  |  提交时间:2020/01/10
Higher-order triangular spectral element method with optimized cubature points for seismic wavefield modeling 期刊论文  OAI收割
JOURNAL OF COMPUTATIONAL PHYSICS, 2017, 卷号: 336, 页码: 458-480
作者:  
Liu, Youshan;  Teng, Jiwen;  Xu, Tao;  Badal, Jose
  |  收藏  |  浏览/下载:29/0  |  提交时间:2019/10/14
Triangular element partition method with consideration of crack tip 期刊论文  OAI收割
SCIENCE CHINA-TECHNOLOGICAL SCIENCES, 2013, 卷号: 56, 期号: 8, 页码: 2081-2088
作者:  
Zhang ZhenNan
  |  收藏  |  浏览/下载:29/0  |  提交时间:2018/06/05
Design and test of pointing mirror assembly for spaceborne remote sensing camera (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Electronics, Communications and Control, ICECC 2011, September 9, 2011 - September 11, 2011, Ningbo, China
作者:  
Chen W.
收藏  |  浏览/下载:39/0  |  提交时间:2013/03/25
In order to ensure the surface figure of the pointing mirror (460mm long  290mm wide) in spaceborne remote sensing camera  Silicon Carbide was selected as the mirror material. The form of composite triangular and rectangular and the combination of open and closed back was explored in the lightweight design. A new kinematic mount and flexible structure in axis is used to hold the mirror around the lateral surface. The structure can minimize distortions induced by coefficient of thermal expansion mismatch among the materials. This eliminates the bending of the integral mount under the weight of the mirror. Optical performance of the mirror was analyzed under gravity load and temperature load using finite element method. Predicted surface figure error based on the removal of bias  tilt and power was calculated using an in-house Matlab script for mirrors. The pointing mirror assembly was tested using open loop servo control. And the surface figure was checked using interferometer. Surface figure accuracy is better than 1/30 ( 632.8nm  rms). The results show that the kinematic mount induces minimal figure error on the optical surface. 2011 IEEE.  
A 17-node quadrilateral spline finite element using the triangular area coordinates 期刊论文  OAI收割
APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION, 2010, 卷号: 31, 期号: 1, 页码: 125-134
作者:  
Chen Juan;  Li Chongjun;  Chen Wanji
  |  收藏  |  浏览/下载:15/0  |  提交时间:2021/02/02
Uniform optimal-order estimates for finite element methods for advection-diffusion equations 期刊论文  OAI收割
JOURNAL OF SYSTEMS SCIENCE & COMPLEXITY, 2009, 卷号: 22, 期号: 4, 页码: 555-559
作者:  
Lin, Qun;  Wang, Hong;  Zhang, Shuhua
  |  收藏  |  浏览/下载:29/0  |  提交时间:2018/07/30
A neural network approach to shape from shading 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF COMPUTER MATHEMATICS, 2003, 卷号: 80, 期号: 4, 页码: 433-439
作者:  
Jiang, TZ;  Liu, B;  Yu, YL;  Evans, DJ
收藏  |  浏览/下载:10/0  |  提交时间:2015/11/08