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浏览/检索结果: 共13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 Fault estimation for continuous-time non-linear switched systems with time-varying delay based on intermediate estimator 期刊论文  OAI收割 IET CONTROL THEORY AND APPLICATIONS, 2020, 卷号: 14, 期号: 19, 页码: 3020-3028 作者:  Wang, Yuenan;  Zhu, Yanzheng;  Ji, Wenchengyu;  Jiang, Yulian;  Wang, Shenquan   |  收藏  |  浏览/下载：36/0  |  提交时间：2021/05/06 time-varying systems  asymptotic stability  linear systems  Lyapunov methods  delays  convex programming  linear matrix inequalities  observers  discrete time systems  continuous-time nonlinear switched systems  time-varying delay  intermediate estimator  fault estimation problem  fading channel  time switching  intermediate variable  observer matching conditions  tighter estimation  linear matrix inequality problem   Pulsation of black holes 期刊论文  OAI收割 GENERAL RELATIVITY AND GRAVITATION, 2018, 卷号: 50, 期号: 1 作者:  Lu, Youjun;  Shen, You-Gen;  Faraoni, Valerio;  Gao, Changjun   |  收藏  |  浏览/下载：42/0  |  提交时间：2018/06/08 Gravitational Collapse  Loop Quantum Cosmology  Matching Conditions   Pulsation of black holes 期刊论文  OAI收割 GENERAL RELATIVITY AND GRAVITATION, 2018, 卷号: 50, 期号: 1 作者:  Faraoni, Valerio;  Gao, Changjun;  Lu, Youjun;  Shen, You-Gen   |  收藏  |  浏览/下载：50/0  |  提交时间：2018/06/08 Gravitational Collapse  Loop Quantum Cosmology  Matching Conditions   Pulsation of black holes 期刊论文  OAI收割 GENERAL RELATIVITY AND GRAVITATION, 2018, 卷号: 50, 期号: 1 作者:  Lu, Youjun;  Gao, Changjun;  Faraoni, Valerio;  Shen, You-Gen   |  收藏  |  浏览/下载：49/0  |  提交时间：2018/06/08 Gravitational Collapse  Loop Quantum Cosmology  Matching Conditions   Characteristic point match algorithm based on the SURF in binocular stereo vision (EI CONFERENCE) 会议论文  OAI收割 5th International Conference on Intelligent Networks and Intelligent Systems, ICINIS 2012, November 1, 2012 - November 3, 2012, Tianjin, China 作者:  Wang L.;  Wang L.;  Wang L.;  Yang L.;  Yang L. 收藏  |  浏览/下载：27/0  |  提交时间：2013/03/25 One of the main components of the computer vision is 3D reconstruction. Extracts and the match based on two-dimensional picture characteristic point is the 3D reconstruction technology core. Taking binocular stereoscopic vision theory as a foundation  through extracts the characteristics of SURF based on the multi-scale analysis  this feature has specific scale reproducibility  put the epipolar constraints and disparity constraints as conditions judgement to specific screening  it is greatly reduced the search range. The experiment use the matching method for three different actual scenes  the results shows that the method can enhance the image matching speed and precision  and can get more precise dense parallax  used for reconstruction complete scene. 2012 IEEE.   Image matching combine SIFT with regional SSDA (EI CONFERENCE) 会议论文  OAI收割 2012 International Conference on Control Engineering and Communication Technology, ICCECT 2012, December 7, 2012 - December 9, 2012, Shenyang, Liaoning, China 作者:  Liu J.;  Liu J.;  Liu J.;  Zhao J. 收藏  |  浏览/下载：38/0  |  提交时间：2013/03/25 Image matching is at the base of many computer vision problems  such as object recognition or image stitching. Standard SIFT provides poor performance when images under viewpoint change conditions and with similar corners. Hence  we propose a matching algorithm combine regional SSDA with simplified SIFT algorithm. We demonstrate through experiments that our algorithm yields better performance in images of viewpoint change and similar feature points. Besides  the simplified algorithm cut down about half the time was originally needed in our tested images. 2012 IEEE.   Stiction of flexural MEMS structures 会议论文  OAI收割 3rd International Conference on Digital Manufacturing and Automation, ICDMA 2012, Guangxi, China, AUG 01-02, 2012 作者:  Liu Y;  Zhang Y(张吟) 收藏  |  浏览/下载：25/0  |  提交时间：2013/02/26 Adhesion  Boundary conditions  Composite micromechanics  Manufacture  Stiction  Variational techniques  Beam bending  Beam deflection  Beam length  Constraint conditions  Contact areas  Contact separation  Elastic energy  External loads  Matching condition  MEMS-structure  Micro-cantilevers  Microcantilever beams  Principle of virtual work  Rayleigh-Ritz methods  S shape  S-shaped  Significant impacts  Variational methods   Energy transition between Yb3+-Tm3+-Gd3+ in Gd3+, Yb3+ and Tm3+ Co-doped fluoride nanocrystals (EI CONFERENCE) 会议论文  OAI收割 17th International Conference on Dynamical Processes in Excited States of Solids, DPC'10, June 20, 2010 - June 25, 2010, Argonne, IL, United states 作者:  Zhang J.;  Zhang J.;  Zhang J. 收藏  |  浏览/下载：24/0  |  提交时间：2013/03/25 YF3: 20%Gd3+  20%Yb3+  0.5%Tm3+ nanocrystal has been synthesized by a hydrothermal method. The upconversion (UC) emission and energy transfer progresses between Gd3+-Yb 3+-Tm3+ under a 980-nm continuous wave semiconductor laser diode excitation have been explored. The experimental results show that the violet and ultraviolet (UV) enhancement with Tm3+ upconversion emission occurs in the nanocrystal  and in the same time the UC emissions of Gd3+ from 6D9/2  6IJ  6P5/2  and 6P7/2 states to the ground state 8S7/2 are obtained  too. The dynamic analysis implies that  under 980-nm excitation  the nanocrystal dimension plays a key role in the efficient energy transfer processes between Gd3+-Yb 3+-Tm3tt based on the energy matching conditions. 2011 Published by Elsevier B.V.   A matching algorithm on statistical properties of Harris corner (EI CONFERENCE) 会议论文  OAI收割 2011 International Conference on Information and Automation, ICIA 2011, June 6, 2011 - June 8, 2011, Shenzhen, China 作者:  He B. 收藏  |  浏览/下载：21/0  |  提交时间：2013/03/25 The fundamental goal of target recognition and video tracking is to match target template with source image. Most matching methods are based on image intensity or multi-feature points. And the latter method is more popular for its high accuracy and small calculation. Image Registration Based on Feature Points focus on effective feature extraction of image points and paradigm. Harris corner in the image rotation  gray  noise and viewpoint change conditions  has an ideal match results  is more recent application of one feature point. This paper extract the Harris corner deviation and covariance firstly  experiments show that the two features exclusive  then applied them to image registration for the first time. A set of actual images have shown  this proposed method not only overcomes the complicated background  gray uneven distribution problems  but also pan and zoom the image has a good resistance. 2011 IEEE.   Fine interference fringes formed in high-order harmonic spectra generated by infrared driving laser pulses 期刊论文  OAI收割 phys. rev. a, 2008, 卷号: 78, 期号: 3, 页码: 33841 Xu Han; Xiong Hui; 曾志男; Fu Yuxi; Yao Jinping; 李儒新; 程亚; 徐至展 收藏  |  浏览/下载：1288/223  |  提交时间：2009/09/18 A-center  Argon gas  Driving pulse  Harmonic spectrum  High-order  High-order harmonic generation  Interference fringe pattern  Interference fringes  Phase-matching conditions  Propagation axis   首页 上一页 1 2 下一页 末页