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浏览/检索结果: 共14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 A New Local Grid Reconstruction Algorithm for Cracking Simulation in Rock-Like Material 期刊论文  OAI收割 ROCK MECHANICS AND ROCK ENGINEERING, 2022 作者:  Wang, Zhaofeng;  Pan, Peng-Zhi;  Hou, Wenbo   |  收藏  |  浏览/下载：16/0  |  提交时间：2023/08/02 Local grid reconstruction  Mesh generation  Crack propagation  Adaptive refinement  Discrete interface  Fracturing process   Fine-structured object segmentation via neighborhood propagation 期刊论文  OAI收割 PATTERN RECOGNITION, 2016, 卷号: 60, 期号: null, 页码: 130-144 作者:  Gong, Yongchao;  Xiang, Shiming;  Pan, Chunhong   |  收藏  |  浏览/下载：26/0  |  提交时间：2016/12/26 Fine-structured Object Segmentation  Label Propagation  Affinity Graph  Local And nonLocal Neighborhood  Region Cost   Propagation modes of 3D scour below a submarine pipeline in oblique steady currents and waves 会议论文  OAI收割 8th International Conference on Scour and Erosion, ICSE 2016, Oxford, United kingdom, September 12, 2016 - September 15, 2016 作者:  Zang ZP(臧志鹏);  Tang G;  Cheng L 收藏  |  浏览/下载：20/0  |  提交时间：2017/05/05 Critical condition  Embedment depth  Incident angles  Local scour  Oblique incidence  Propagation mode  Shields parameters  Steady current   Velocity field of wave-induced local fluid flow in double-porosity media 期刊论文  OAI收割 SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, 2014, 卷号: 57, 期号: 6, 页码: 1020-1030 作者:  Ba Jing;  Zhang Lin;  Sun WeiTao;  Hao ZhaoBing   |  收藏  |  浏览/下载：24/0  |  提交时间：2018/09/26 double-porosity medium  elastic wave propagation  local fluid flow  velocity dispersion  Biot-Rayleigh equations  petrophysical experiment   Velocity field of wave-induced local fluid flow in double-porosity media 期刊论文  OAI收割 SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, 2014, 卷号: 57, 期号: 6, 页码: 1020-1030 作者:  Ba Jing;  Zhang Lin;  Sun WeiTao;  Hao ZhaoBing   |  收藏  |  浏览/下载：32/0  |  提交时间：2018/09/26 double-porosity medium  elastic wave propagation  local fluid flow  velocity dispersion  Biot-Rayleigh equations  petrophysical experiment   An improved hyperspectral classification algorithm based on back-propagation neural networks (EI CONFERENCE) 会议论文  OAI收割 2012 2nd International Conference on Remote Sensing, Environment and Transportation Engineering, RSETE 2012, June 1, 2012 - June 3, 2012, Nanjing, China 作者:  Yu P.;  Yu P. 收藏  |  浏览/下载：34/0  |  提交时间：2013/03/25 In this paper  a new method is proposed to improve the classification performance of hyperspectral images by combining the principal component analysis (PCA)  genetic algorithm (GA)  and artificial neural networks (ANNs). First  some characteristics of the hyperspectral remotely sensed data  such as high correlation  high redundancy  etc.  are investigated. Based on the above analysis  we propose to use the principal component analysis to capture the main information existing in the hyperspectral images and reduce its dimensionality consequently. Next  we use neural networks to classify the reduced hyperspectral data. Since the back-propagation neural network we used is easy to suffer from the local minimum problem  we adopt a genetic algorithm to optimize the BP network's weights and the threshold. Experimental results show that the classification accuracy is improved and the time of calculation is reduced as well. 2012 IEEE.   Effects of icosahedral phase formation on the microstructure and mechanical improvement of Mg alloys: A review 期刊论文  OAI收割 Progress in Natural Science-Materials International, 2012, 卷号: 22, 期号: 5, 页码: 364-385 D. K. Xu; E. H. Han 收藏  |  浏览/下载：21/0  |  提交时间：2013/02/05 Icosahedral phase  Mg alloys  Mechanical properties  Microstructural  evolution  zn-y alloys  quasi-crystalline phase  az31 magnesium alloy  channel-angular extrusion  frank-kasper phases  dodecahedral  solidification morphology  fatigue-crack propagation  local  translational order  metal-matrix composites  high-cycle fatigue   Effects of Lorentz local field correction on propagation properties of few-cycle pulse in dense Λ-type atomic medium 期刊论文  OAI收割 opt. commun., 2008, 卷号: 281, 期号: 17, 页码: 4493, 4498 Ma Hui; Fan Xijun; Tan Xia; Lu Hongwu; 徐至展 收藏  |  浏览/下载：712/53  |  提交时间：2009/09/18 local field correction  few-cycle pulse  propagation properties  dense atomic medium   图像对应点确定及其应用 学位论文  OAI收割 工学硕士, 中国科学院自动化研究所: 中国科学院研究生院, 2007 万崇玮 收藏  |  浏览/下载：79/0  |  提交时间：2015/09/02 对应点  图像匹配  局部特征  SIFT  匹配扩散  视频镜头检测  遥感影像配准  Point correspondence  Image matching  Local feature  SIFT  Match propagation  Video shot detection  Remote sensed image registration   A wave propagation method in local angle domain 期刊论文  OAI收割 CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2007, 卷号: 50, 期号: 1, 页码: 248-259 作者:  Gao Jing-Huai;  Zhou Yan-Hui;  Mao Jian;  Chen Wen-Chao;  Wu Ru-Shan   |  收藏  |  浏览/下载：16/0  |  提交时间：2018/09/26 one-way propagation  Gabor-Daubechies frame  inhomogeneous media  local angle domain  marching algorithm