中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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Global Controllability of the Navier-Stokes Equations in the Presence of Curved Boundary with No-Slip Conditions 期刊论文  OAI收割
JOURNAL OF MATHEMATICAL FLUID MECHANICS, 2022, 卷号: 24, 期号: 3, 页码: 32
作者:  
Liao, Jiajiang;  Sueur, Franck;  Zhang, Ping
  |  收藏  |  浏览/下载:22/0  |  提交时间:2023/02/07
A lattice Boltzmann method for viscous free surface waves in two dimensions 期刊论文  OAI收割
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS, 2013, 卷号: 71, 期号: 2, 页码: 223-248
[Zhao, Zhuangming; Huang, Ping] Sun Yat Sen Univ, Sch Environm Sci & Engn, Dept Environm Sci, Guangzhou 510275, Guangdong, Peoples R China; [Li, Yineng; Li, Junmin] Chinese Acad Sci, S China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China
收藏  |  浏览/下载:40/0  |  提交时间:2015/01/14
Computational strategy of seismic pre-stack reverse time migration on CPU/GPU 期刊论文  OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2010, 卷号: 53, 期号: 12, 页码: 2938-2943
作者:  
Li Bo;  Liu Hong-Wei;  Liu Guo-Feng;  Tong Xiao-Long;  Liu Hong
  |  收藏  |  浏览/下载:55/0  |  提交时间:2018/09/26
Computational strategy of seismic pre-stack reverse time migration on CPU/GPU 期刊论文  OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2010, 卷号: 53, 期号: 12, 页码: 2938-2943
作者:  
Li Bo;  Liu Hong-Wei;  Liu Guo-Feng;  Tong Xiao-Long;  Liu Hong
  |  收藏  |  浏览/下载:52/0  |  提交时间:2018/09/26
Intelligent MRTD testing for thermal imaging system using ANN (EI CONFERENCE) 会议论文  OAI收割
ICO20: Remote Sensing and Infrared Devices and Systems, August 21, 2005 - August 26, 2005, Changchun, China
Sun J.; Ma D.
收藏  |  浏览/下载:27/0  |  提交时间:2013/03/25
The Minimum Resolvable Temperature Difference (MRTD) is the most widely accepted figure for describing the performance of a thermal imaging system. Many models have been proposed to predict it. The MRTD testing is a psychophysical task  for which biases are unavoidable. It requires laboratory conditions such as normal air condition and a constant temperature. It also needs expensive measuring equipments and takes a considerable period of time. Especially when measuring imagers of the same type  the test is time consuming. So an automated and intelligent measurement method should be discussed. This paper adopts the concept of automated MRTD testing using boundary contour system and fuzzy ARTMAP  but uses different methods. It describes an Automated MRTD Testing procedure basing on Back-Propagation Network. Firstly  we use frame grabber to capture the 4-bar target image data. Then according to image gray scale  we segment the image to get 4-bar place and extract feature vector representing the image characteristic and human detection ability. These feature sets  along with known target visibility  are used to train the ANN (Artificial Neural Networks). Actually it is a nonlinear classification (of input dimensions) of the image series using ANN. Our task is to justify if image is resolvable or uncertainty. Then the trained ANN will emulate observer performance in determining MRTD. This method can reduce the uncertainties between observers and long time dependent factors by standardization. This paper will introduce the feature extraction algorithm  demonstrate the feasibility of the whole process and give the accuracy of MRTD measurement.  
Time-domain finite-element wave form inversion of acoustic wave equation 期刊论文  OAI收割
JOURNAL OF COMPUTATIONAL ACOUSTICS, 2004, 卷号: 12, 期号: 3, 页码: 387-396
作者:  
Di, QY;  Zhang, MG;  Wang, MY
  |  收藏  |  浏览/下载:15/0  |  提交时间:2018/09/26
Time-domain finite-element wave form inversion of acoustic wave equation 期刊论文  OAI收割
JOURNAL OF COMPUTATIONAL ACOUSTICS, 2004, 卷号: 12, 期号: 3, 页码: 387-396
作者:  
Di, QY;  Zhang, MG;  Wang, MY
  |  收藏  |  浏览/下载:16/0  |  提交时间:2018/09/26
Finite-element implementation of reverse-time migration for anisotropic media 期刊论文  OAI收割
JOURNAL OF GEOPHYSICS AND ENGINEERING, 2004, 卷号: 1, 期号: 2, 页码: 103-108
作者:  
Zhang, MG;  Li, XF;  Wang, MY
  |  收藏  |  浏览/下载:18/0  |  提交时间:2018/09/26
Finite-element implementation of reverse-time migration for anisotropic media 期刊论文  OAI收割
JOURNAL OF GEOPHYSICS AND ENGINEERING, 2004, 卷号: 1, 期号: 2, 页码: 103-108
作者:  
Zhang, MG;  Li, XF;  Wang, MY
  |  收藏  |  浏览/下载:15/0  |  提交时间:2018/09/26
Variational Formulation of l-D Unsteady Compressible Flow in a Deforming Tube 期刊论文  OAI收割
JOURNAL OF THERMAL SCIENCE, 2003, 卷号: 12, 期号: 2, 页码: 114,117
Gaolian Liu; YiTao; Yingxue Liu
收藏  |  浏览/下载:12/0  |  提交时间:2013/03/12