中国科学院机构知识库网格系统: 检索

浏览/检索结果: 共7条，第1-7条

帮助

条数/页：排序方式：
	Plasma Breakdown Optimization Calculation Based on Improved Particle Swarm Algorithm for TT-1 Device 期刊论文 OAI收割 JOURNAL OF FUSION ENERGY, 2024, 卷号: 43 作者: Shu, Shuangbao; Zhang, Jiaxin; Zhang, Shurui; Luo, Jiarong; Liu, Shanlin \| 收藏 \| 浏览/下载：9/0 \| 提交时间：2024/11/22 Tokamak device Mutual inductance coefficients Null field region The poloidal field coil current optimization Particle swarm optimization algorithm
	Upgrade of the magnetic diagnostic system for restart of HT-6M operation 期刊论文 OAI收割 CHINESE PHYSICS B, 2022, 卷号: 31 作者: Chen, Li-Xing; Shen, Biao \| 收藏 \| 浏览/下载：57/0 \| 提交时间：2022/12/23 HT-6M null field magnetic measurement high frequency calibration
	An improved artificial potential field method of trajectory planning and obstacle avoidance for redundant manipulators 期刊论文 OAI收割 International Journal of Advanced Robotic Systems, 2018, 卷号: 15, 期号: 5, 页码: 13 作者: Wang, W. R.; Zhu, M. C.; Wang, X. M.; He, S.; He, J. P. \| 收藏 \| 浏览/下载：37/0 \| 提交时间：2019/09/17 Trajectory planning attractive potential field velocity feedforward obstacle avoidance repulsive potential field cluttered environments mobile robots null-space navigation algorithms path Robotics
	United steering of control moment gyros for small satellite with limited gimbal rate (EI CONFERENCE) 会议论文 OAI收割 2010 IEEE International Conference on Information and Automation, ICIA 2010, June 20, 2010 - June 23, 2010, Harbin, Heilongjiang, China Xu K.; Jin G.; Chen C. 收藏 \| 浏览/下载：21/0 \| 提交时间：2013/03/25 Single Gimbal Control Moment Gyroscopes (SGCMG) can could provide large control torque and quick attitude maneuver rate to small satellites without any increase in power volume and mass which will help small satellites become more powerful. Singularity avoidance and failure steering are two important problems to SGCMGs and also the main focus in this field. A new united steering law for SGCMGs with capabilities of singularity avoidance and quick transition of singularity surfaces is developed in this paper. To ensuring the existence of null motion the commanded output of controller was changed real-timely as the variation of singularity measurement of SGCMGs which can avoid the gimbal angle rate saturation. This developed steering law could help the SGCMGs provide real-time control toques in spite of limitation of gimbal angle rate. Simulation analysis is conducted for a certain 4-SGCMG system mounted on a small satellite. Simulation results indicate that the steering law is very effective in singularity avoidance. 2010 IEEE.
	Design and tolerance analysis of compensator for high order aspheric surface testing (EI CONFERENCE) 会议论文 OAI收割 2009 International Conference on Optical Instruments and Technology - Optoelectronic Measurement Technology and Systems, October 19, 2009 - October 22, 2009, Shanghai, China 作者: Chen X.; Liu W.; Chen X.; Chen X. 收藏 \| 浏览/下载：30/0 \| 提交时间：2013/03/25 High accuracy is required in surface testing of 90nm nodal point lithography projecting lens. By comparing various aspheric surface testing methods the structure layout of the compensator is a meniscus positive lens combined with a Plano-convex positive lens. The design results indicate that: primary and high order aberrations are balanced well we adopt Offner null compensator to test the aspheric surface in the point diffraction interferometer at last. In this paper MTF exceeds diffraction limit an Offner compensator is presented on the base of the third order aberration theory to test concave aspheric surface root-mean-square (RMS) of wave front error /167. The F-number of the system can achieve F/1.64. By the analysis of the process of aspheric surface testing with the designed system the optical construction parameters of which is determined by introducing equal-quantities spherical aberration to compensate all orders of aspheric coefficients. The field of view of the system is 0.02 a loosen distribution of the tolerance was presented based on the accuracy of measuring apparatus. 2009 SPIE.
	Quaternion-octonion analyticity for Abelian and non-Abelian gauge theories of dyons 期刊论文 OAI收割 INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS, 2008, 卷号: 47, 期号: 6, 页码: 1497-1511 作者: Bisht, P. S.; Negi, O. P. S.; Negi, OPS , Kumaun Univ, Dept Phys, SSJ Campus, Almora 263601, Uttarakhand, India \| 收藏 \| 浏览/下载：27/0 \| 提交时间：2012/08/02 Quantum Field-theory Generalized Electromagnetic-fields Magnetic-charge Renormalization Null-tetrad Formulation Non-riemannian Manifold Kaluza-klein Theory Clifford Space Dirac-equation Gravito-dyons Monopoles
	Unified split octonion formulation of dyons 期刊论文 OAI收割 INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS, 2008, 卷号: 47, 期号: 9, 页码: 2297-2313 作者: Bisht, P. S.; Dangwal, Shalini; Negi, O. P. S.; Negi, OPS , Chinese Acad Sci, Inst Theoret Phys, KITP Bldg Room 6304,Hai Dian Qu Zhong Guan Chun D, Beijing 100080, Peoples R China \| 收藏 \| 浏览/下载：28/0 \| 提交时间：2012/08/02 Quantum Field-theory Null-tetrad Formulation Magnetic-charge Renormalization Division-algebras Gravito-dyons Gauge-theory Quaternionic Formulation Gravitational Theory Jordan Algebras Distant Masses