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浏览/检索结果: 共11条，第1-10条 帮助

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Measuring the evolving stage of temporal distribution of research topic keyword in scientific literature by research heat curve 期刊论文  OAI收割
SCIENTOMETRICS, 2024, 页码: 42
作者:  Zhang, Junsheng;  Sun, Xiaoping;  Liu, Zhihui
  |  收藏  |  浏览/下载：16/0  |  提交时间：2024/05/20
On optimal location of diffusion and related optimal control for null controllable heat equation 期刊论文  OAI收割
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, 2016, 卷号: 433, 期号: 2, 页码: 1333-1349
作者:  Guo, Bao-Zhu;  Yang, Dong-Hui;  Zhang, Liang
  |  收藏  |  浏览/下载：29/0  |  提交时间：2018/07/30
Effects of Lambda hyperon on localization and clustering in p- and sd-shell nuclei 期刊论文  OAI收割
NUCLEAR PHYSICS A, 2015, 卷号: 933, 页码: 82—92
作者:  Xu, RL;  Wu, C
收藏  |  浏览/下载：20/0  |  提交时间：2015/12/09
Challenges in the theoretical investigations of lipid membrane configurations 期刊论文  OAI收割
CHINESE PHYSICS B, 2013, 卷号: 22, 期号: 2, 页码: 28701
Tu, ZC
收藏  |  浏览/下载：60/0  |  提交时间：2014/04/25
Equilibrium Configurations of Lipid Bilayer Membranes and Carbon Nanostructures 期刊论文  OAI收割
COMMUNICATIONS IN THEORETICAL PHYSICS, 2013, 卷号: 59, 期号: 2, 页码: 213-228
Mladenov, IM; Djondjorov, PA; Hadzhilazova, MT; Vassilev, VM
收藏  |  浏览/下载：119/0  |  提交时间：2014/04/25
Global shape reconstruction of nano grid with singly fixed camera 期刊论文  OAI收割
SCIENCE CHINA-TECHNOLOGICAL SCIENCES, 2011, 卷号: 54, 期号: 4, 页码: 1044-1052
作者:  Wei YangJie;  Wu ChengDong;  Dong ZaiLi
  |  收藏  |  浏览/下载：17/0  |  提交时间：2021/02/02
Global shape reconstruction of nano grid with singly fixed camera 期刊论文  OAI收割
SCIENCE CHINA-TECHNOLOGICAL SCIENCES, 2011, 卷号: 54, 期号: 4, 页码: 1044-1052
作者:  Wei YJ(魏阳杰);  Wu CD(吴成东);  Dong ZL(董再励)
收藏  |  浏览/下载：25/0  |  提交时间：2012/05/29
Configuring an electrostatic membrane reflector with potentials exerted on distributed electrodes (EI CONFERENCE) 会议论文  OAI收割
2009 IEEE International Conference on Mechatronics and Automation, ICMA 2009, August 9, 2009 - August 12, 2009, Changchun, China
作者:  Zhang P.;  Shi G.
收藏  |  浏览/下载：19/0  |  提交时间：2013/03/25
Electrostatic membrane reflector (EMR) is very promised for optical quality application with the merits of utra-lightweight and flexible. Configuring a circular membrane reflector with electrostatic potentials exerted on distributed electrodes can approximatively produce a parabolic shape. A 300mm EMR (made from polyimide) stretched by distributed electrodes below is designed  and the number of concentric electrodes needed for membrane shape forming is analysed. First  based on an analytical solution of Poisson's equation  determine the membrane control matrix by finding influence functions of 3 concentric electrodes and 6 control points on membrane surface in order to compute the needed voltages exerted on the distributed electrodes by the method of least-squares fitting. Then the final shape solved by finite element analysis with ANSYS is contrasted with the paraboloid and deviates greatly when the central displacement of membrane is beyond 2.5mm  but in this range increasing the number of electrodes and control points will get a better shape. The corresponding errors are analyzed  and the control method is concluded. Only using the integrated method of analytical computation  numerical analysis and experiment  the membrane shape of certain central displacement can be exactly predicted and controlled. 2009 IEEE.  
A segment detection method based on improved Hough transform (EI CONFERENCE) 会议论文  OAI收割
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
作者:  Yao Z.-J.
收藏  |  浏览/下载：26/0  |  提交时间：2013/03/25
Hough transform is recognized as a powerful tool in shape analysis which gives good results even in the presence of noise and the disconnection of edge. However  3. applying the standard Hough transform equation to every point of the input image edge  4. according to the local threshold  6. merging the segments whose extreme points are near. Experiment results show the approach not only can recognize regular geometric object but also can extract the segment feature of real targets in complex environment. So the proposed method can be used in the target detection of complicated scenes  traditional Hough transform can only detect the lines  2. quantizing the parameter space  and extracting a group of maximums according to the global threshold  eliminating spurious peaks which are caused by the spreading effects  and will improve the precision of tracking.  cannot give the endpoints and length of the line segments and it is vulnerable to the quantization errors. Based on the analysis of its limitations  Hough transform has been improved in order to detect line segment feature of targets. The algorithm aims to avoid the loss of spatial information  as well as to eliminate the spurious peaks and fix on the line segments endpoints accurately  5. fixing on the endpoints of the segments according to the dynamic clustering rule  which can expediently be used for the description and classification of regular objects. The method consists of 6 steps: 1. setting up the image  parameter and line-segment spaces  
Magnetic field integral equation at very low frequencies 期刊论文  OAI收割
Ieee Transactions on Antennas and Propagation, 2003, 卷号: 51, 期号: 8, 页码: 1864-1871
Zhang, Y. H.; Cui, T. J.; Chew, W. C.; Zhao, J. S
收藏  |  浏览/下载：20/0  |  提交时间：2014/05/04