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浏览/检索结果: 共16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 structure-preserving finite element discretization for the time-dependent Nernst-Planck equation 期刊论文  OAI收割 JOURNAL OF APPLIED MATHEMATICS AND COMPUTING, 2021, 页码: 20 作者:  Zhang, Qianru;  Tu, Bin;  Fang, Qiaojun;  Lu, Benzhuo   |  收藏  |  浏览/下载：24/0  |  提交时间：2021/10/26 Structure-preserving finite element discretization  Nernst-Planck equation  Scharfetter-Gummel approximation  Jordan-Kinderlehrer-Otto scheme   Modified Stencil Approximations for Fifth-Order Weighted Essentially Non-oscillatory Schemes 期刊论文  OAI收割 JOURNAL OF SCIENTIFIC COMPUTING, 2019, 卷号: 81, 期号: 2, 页码: 898-922 作者:  Wang, Yahui;  Du, Yulong;  Zhao, Kunlei;  Yuan, Li   |  收藏  |  浏览/下载：17/0  |  提交时间：2020/05/24 WENO scheme  Stencil approximation order  Smoothness indicator  Hyperbolic conservation law  Euler equation   Adaptive dynamic programming for robust neural control of unknown continuous-time non-linear systems 期刊论文  OAI收割 IET CONTROL THEORY AND APPLICATIONS, 2017, 卷号: 11, 期号: 14, 页码: 2307-2316 作者:  Yang, Xiong;  He, Haibo;  Liu, Derong;  Zhu, Yuanheng   |  收藏  |  浏览/下载：42/0  |  提交时间：2017/09/13 Dynamic Programming  Robust Control  Neurocontrollers  Continuous Time Systems  Control System Synthesis  Nonlinear Control Systems  Optimal Control  Function Approximation  Monte Carlo Methods  Closed Loop Systems  Asymptotic Stability  Adaptive Dynamic Programming  Robust Neural Control Design  Unknown Continuous-time Nonlinear Systems  Ct Nonlinear Systems  Adp-based Robust Neural Control Scheme  Robust Nonlinear Control Problem  Nonlinear Optimal Control Problem  Nominal System  Adp Algorithm  Actor-critic Dual Networks  Control Policy Approximation  Value Function Approximation  Actor Neural Network Weights  Critic Nn Weights  Monte Carlo Integration Method  Closed-loop System  Asymptotically Stability   A new fully polynomial time approximation scheme for the interval subset sum problem 期刊论文  OAI收割 JOURNAL OF GLOBAL OPTIMIZATION, 2017, 卷号: 68, 期号: 4, 页码: 749-775 作者:  Diao, Rui;  Liu, Ya-Feng;  Dai, Yu-Hong   |  收藏  |  浏览/下载：31/0  |  提交时间：2018/07/30 Interval subset sum problem  Computational complexity  Solution structure  Fully polynomial time approximation scheme  Worst-case performance   An adaptive cellular updating scheme for the continuous-discontinuous cellular automaton method 期刊论文  OAI收割 APPLIED MATHEMATICAL MODELLING, 2017, 卷号: 46, 页码: 1-15 作者:  Pan, Peng-Zhi;  Feng, Xia-Ting;  Lv, Jia-He;  Li, Shao-Jun;  Yan, Fei   |  收藏  |  浏览/下载：34/0  |  提交时间：2018/06/05 Continuous discontinuous cellular automaton method  Unbalanced force  Discontinuous approximation  Adaptive cellular updating scheme  Computational efficiency   A planning model for multiple blending schemes 期刊论文  OAI收割 CHINESE JOURNAL OF CHEMICAL ENGINEERING, 2015, 卷号: 23, 期号: 4, 页码: 675-680 作者:  Gao Zhen   |  收藏  |  浏览/下载：13/0  |  提交时间：2021/02/26 INTEGER NONLINEAR PROGRAMS  MIXED-INTEGER  GLOBAL OPTIMIZATION  OUTER-APPROXIMATION  REFINERY  ALGORITHM  BRANCH  Refinery production planning  Running mode  Blending scheme  Mixed integer nonlinear programming   Research on the identification for a nonlinear system (EI CONFERENCE) 会议论文  OAI收割 International Conference on Optical, Electronic Materials and Applications 2011, OEMA 2011, March 4, 2011 - March 6, 2011, Chongqing, China 作者:  Liu J.;  Jia P.;  Liu J.;  Liu J. 收藏  |  浏览/下载：39/0  |  提交时间：2013/03/25 The characteristic of the drift error of inertial platform is a high-order nonlinear dynamic system  using the neural networks' abilities of universal approximation of differentiable trajectory and capturing system dynamic information  this paper presents the drift error identifying project of inertial platform based on Elman networks structure. First  the drift error model of inertial platform is established  after selecting the input and output for network  momentum and alterable speed algorithm is used to speed up the network convergence. On the basis of the algorithm  the extended nonlinear node function in the hidden network does not only improve the learning speed of network  but also satisfies the need of accuracy on system identification. Through the drift error data measured on inertial platform  the training result shows that the scheme achieves satisfied identification results. (2011) Trans Tech Publications.   Image compression based on contourlet and no lists SPIHT (EI CONFERENCE) 会议论文  OAI收割 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China 作者:  Zhang S. 收藏  |  浏览/下载：57/0  |  提交时间：2013/03/25 The volume of raw image data captured by the high resolution camera is extremely huge. Thus the efficient image compression method should be used to decrease the bit rate. The image compression method based on wavelet is used more widely nowadays. However  two dimensional wavelet is only the tensor product of the one dimensional wavelet whose support region of basis function is extended from interval to square. Contourlet is an image multiscale geometric analysis tool  which could represent image sparsely and has strong capability of nonlinear approximation. The basis function of contourlet is multidirectional and anisotropic. Nevertheless  contourlet is redundant. So the non-redundant Wavelet Based Contourlet Transform (WBCT) is used in this paper. The SPIHT algorithm is very efficient way to coding the significant coefficients. And the improved no lists SPIHT is more easy to implemented by hardware. Image compression method based on the combination of both wavelet based contourlet transform and no lists SPIHT coding is proposed in the paper. Experiment shows that compared to wavelet based scheme the contourlet scheme can reserve the texture of the image. For barbara test image when coding at low bit rate the PSNR can improve about 0.2dB. 2010 IEEE.   Approximation schemes for scheduling a batching machine with nonidentical job size 期刊论文  OAI收割 JOURNAL OF SYSTEMS SCIENCE & COMPLEXITY, 2007, 卷号: 20, 期号: 4, 页码: 592-600 作者:  Zhang, Xianzhao;  Zhang, Yuzhong;  Cao, Zhigang;  Cai, Zengxia   |  收藏  |  浏览/下载：26/0  |  提交时间：2018/07/30 approximation scheme  batching machine  size  worst case ratio   Atmospheric inversion methods of GPS radio occultation 期刊论文  OAI收割 CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2005, 卷号: 48, 期号: 4, 页码: 768-774 作者:  Hu, X;  Zeng, Z;  Zhang, XX;  Zhang, DY;  Xiao, CY 收藏  |  浏览/下载：28/0  |  提交时间：2015/07/17 GPS radio occultation  atmosphere  optic approximation inversion method  full spectrum inversion method  combined inversion scheme