中国科学院机构知识库网格系统: 检索

Angular momentum projection in the deformed relativistic Hartree-Bogoliubov theory in continuum 期刊论文 OAI收割
PHYSICAL REVIEW C, 2021, 卷号: 104, 期号: 6, 页码: 64319
作者: Sun, Xiang-Xiang; Zhou, Shan-Gui

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收藏 | 浏览/下载：17/0 | 提交时间：2023/01/16

GROUND-STATE PROPERTIES MEAN-FIELD-THEORY GENERATOR-COORDINATE METHOD NEUTRON HALO MAGNESIUM ISOTOPES SHELL-MODEL NUCLEI SHAPE TRANSITION SPACE

Stress-deflection angle measurement of the aircraft wings using a biaxial inclination angle sensor 会议论文 OAI收割
Xiamen, PEOPLES R CHINAXiamen, PEOPLES R CHINA, JUL 06-08, 2018JUL 06-08, 2018
作者: Tian, Peng; Li, Fan-xing; Yin, Gui-gang; Wang, Da-kui; Hu, Song

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收藏 | 浏览/下载：20/0 | 提交时间：2019/08/23

space rotation shaft biaxial inclination angle sensor space coordinate transformation

Theory of quantum gravity beyond Einstein and space-time dynamics with quantum inflation 期刊论文 OAI收割
INTERNATIONAL JOURNAL OF MODERN PHYSICS A, 2015, 卷号: 30, 期号: 28-29, 页码: 1545002
作者: Wu, YL

收藏 | 浏览/下载：21/0 | 提交时间：2016/11/21

Quantum gravity bi-frame space-time spinnic and scaling gauge symmetries Gravifield coordinate-independence and gauge-invariance gravity equation beyond Einstein conservation laws quantum inflation

A line mapping based automatic registration algorithm of infrared and visible images 会议论文 OAI收割
5th International Symposium on Photoelectronic Detection and Imaging (ISPDI) - Infrared Imaging and Applications, Beijing, June 25-27, 2013
作者: Ai R(艾锐); Shi ZL(史泽林); Xu DJ(徐德江); Zhang CS(张程硕)

收藏 | 浏览/下载：36/0 | 提交时间：2013/12/26

There exist complex gray mapping relationships among infrared and visible images because of the different imaging mechanisms. The difficulty of infrared and visible image registration is to find a reasonable similarity definition. In this paper, we develop a novel image similarity called implicit linesegment similarity(ILS) and a registration algorithm of infrared and visible images based on ILS. Essentially, the algorithm achieves image registration by aligning the corresponding line segment features in two images. First, we extract line segment features and record their coordinate positions in one of the images, and map these line segments into the second image based on the geometric transformation model. Then we iteratively maximize the degree of similarity between the line segment features and correspondence regions in the second image to obtain the model parameters. The advantage of doing this is no need directly measuring the gray similarity between the two images. We adopt a multi-resolution analysis method to calculate the model parameters from coarse to fine on Gaussian scale space. The geometric transformation parameters are finally obtained by the improved Powell algorithm. Comparative experiments demonstrate that the proposed algorithm can effectively achieve the automatic registration for infrared and visible images, and under considerable accuracy it makes a more significant improvement on computational efficiency and anti-noise ability than previously proposed algorithms.

Deformed relativistic Hartree-Bogoliubov theory in continuum 期刊论文 OAI收割
PHYSICAL REVIEW C, 2012, 卷号: 85, 期号: 2, 页码: 24312
作者: Zhou, SG; Zhao, EG

收藏 | 浏览/下载：24/0 | 提交时间：2014/04/25

GROUND-STATE PROPERTIES NEUTRON-DRIP-LINE MEAN-FIELD-THEORY EXOTIC NUCLEI SELF-CONSISTENT MG ISOTOPES COORDINATE SPACE EXPANSION METHOD PROTON EMITTERS HIRFL-CSR

Dynamic coupling analysis and modeling for stabilized platform of rolling-pitching seeker (EI CONFERENCE) 会议论文 OAI收割
2011 International Conference on Electric Information and Control Engineering, ICEICE 2011, April 15, 2011 - April 17, 2011, Wuhan, China
作者: Liu H.; Liu H.; Liu H.

收藏 | 浏览/下载：12/0 | 提交时间：2013/03/25

Missile's attitude change will be delivered to visual axis through stabilized platform during maneuvering flight and the missile vibration will be an interference source to visual axis stabilization. In order to solve this problem the coupling relationship between missile attitude and visual axis is obtained by Coordinate transformation. When the seeker stably tracks a target the angular velocity of visual axis in inertial space is zero so the relative angular velocity of roll axis and pitch axis can be derived for servo control. According to Oura dynamics equation the dynamic models of roll axis and pitch axis were established and kinetic equations of two axises were obtained. The dynamic models can provide theoretical basis to developing research of servo control system and structural optimization design of stabilized platform. Finally some measures could reduce the dynamic coupling between the framework was given. 2011 IEEE.

First attempt to overcome the disaster of Dirac sea in imaginary time step method 期刊论文 OAI收割
CHINESE PHYSICS C, 2009, 卷号: 33, 页码: 113-115
作者: Zhang Ying; Liang Hao-Zhao; Meng Jie

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收藏 | 浏览/下载：25/0 | 提交时间：2018/05/31

imaginary time step method Dirac equation Woods-Saxon potential axially deformed coordinate space

Modeling of satellite borne TDI CCD pitching imaging image motion velocity vector (EI CONFERENCE) 会议论文 OAI收割
2009 IEEE International Conference on Automation and Logistics, ICAL 2009, August 5, 2009 - August 7, 2009, Shenyang, China
作者: Zhang L.; Li S.; Zhang L.

收藏 | 浏览/下载：14/0 | 提交时间：2013/03/25

In order to obtain three-dimensional observation effect with single satellite borne time delay and integrate charge coupled device (TDI-CCD) pitching imaging is required. More accurate real-time image motion velocity vector computational model of space camera is also necessary to make the imaging perfect. Imaging motion velocity vector computation model must be set up on image plane at pitching imaging. According to the geometric relationship between the pitching imaging space camera and the Earth's rotation motion satellite borne TDI CCD pitching imaging motion velocity vector model is derived by mapping the ground speed to the image plane and using coordinate transformation method. The numerical simulation results show that the image velocity model can reduce deviation angle error about 33' and about 30% image motion speed error compared to traditional ground velocity model. 2009 IEEE.

Spherical relativistic Hartree theory in a Woods-Saxon basis 期刊论文 OAI收割
PHYSICAL REVIEW C, 2003, 卷号: 68, 期号: 3, 页码: -
作者: Zhou, SG; Meng, J; Ring, P; Zhou, SG , Peking Univ, Sch Phys, Beijing 100871, Peoples R China.

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收藏 | 浏览/下载：23/0 | 提交时间：2012/08/29

Mean-field Description Neutron-drip-line Finite Nuclei Bogoliubov Equations Coordinate Space Halo Representation Range

Topological quantization of k-dimensional topological defects and motion equations 期刊论文 OAI收割
CHINESE PHYSICS LETTERS, 2001, 卷号: 18, 期号: 5, 页码: 631-633
作者: Yang, GH , Shanghai Univ, Dept Phys, Shanghai 200436, Peoples R China.; Yang, GH; Jiang, Y; Duan, YS

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收藏 | 浏览/下载：29/0 | 提交时间：2012/08/29

Space-time Defects Gauge Field-theory Disclination Continuum Coordinate Condition Linear Defects Tensor Current P-branes Bifurcation Strings Dislocation