Results 21 to 30 of about 39,894 (311)

Irregular Polyomino-Shaped Subarrays for Space-Based Active Arrays

International Journal of Antennas and Propagation, 2009
This paper presents new results showing the application of polyomino-based subarrays to limited field of view and wideband, wide-angle scanning. This technology can reduce the number of phase controls in arrays used for limited sector coverage or the ...
R. J. Mailloux, S. G. Santarelli, T. M. Roberts, D. Luu   +3 more
doaj   +1 more source

Tangential Electromagnetic Force Array on the Vibration and Noise of Electric Axle for New Energy Vehicle

IEEE Access, 2023
It is generally accepted that the vibration and noise of electrical motors mainly depend on radial electromagnetic forces. However, the relationship between electromagnetic forces and system modes becomes special when integrating the electrical motor ...
Chao Huang, Lu Xiong, Yu Gong, Mingyuan Jiang, Shuangxia Niu   +4 more
doaj   +1 more source

Simulation study on influence factor of electromagnetic deflection of projectile between polar plates

Zhongguo Jianchuan Yanjiu, 2018
[Objectives] Deflecting an incoming projectile using electromagnetic force on the projectile body between polar plates is a creative protection method for weapons and equipment.
CHEN Entao, LIU Jianhu, ZHANG Xianpi, ZHANG Lunping   +3 more
doaj   +1 more source

Theoretical and numerical simulation study on jet formation and penetration of different liner structures driven by electromagnetic pressure

Defence Technology, 2021
The use of a shaped liner driven by electromagnetic force is a new means of forming jets. To study the mechanism of jet formation driven by electromagnetic force, we considered the current skin effect and the characteristics of electromagnetic loading ...
Jian-hao Dou, Xin Jia, Zheng-xiang Huang, Xiao-hui Gu, Ying-min Zheng, Bin Ma, Qiang-qiang Xiao   +6 more
doaj   +1 more source

Force Calculation in Electromagnetic Devices [PDF]

, 1988
In this paper the authors show how the Maxwell stress tensor can be used, in practice, in order to determine local magnetic forces distribution in an electromagnetic system. An experimental set-up has been designed in view of comparing the theoretical results with the measurements.
Lefèvre, Yvan, Lajoie-Mazenc, Michel, Davat, Bernard   +2 more
openaire   +3 more sources

Research Progresses in Radar Feature Extraction, Imaging, and Recognition of Target with Micro-motions

Leida xuebao, 2018
The technique of radar feature extraction, imaging, and recognition of target with micro-motions has become one of the most potential research directions in the field of radar target accurate recognition.
Zhang Qun, Hu Jian, Luo Ying, Chen Yijun
doaj   +1 more source

Electromagnetic Vibration Characteristics Analysis of a Squirrel-Cage Induction Motor Under Different Loading Conditions

IEEE Access, 2019
Electromagnetic vibration is an important excitation source for squirrel-cage induction motors. However, the electromagnetic vibration under various loadings has not been sufficiently analyzed.
Defeng Kong, Zhijun Shuai, Wanyou Li, Donghua Wang   +3 more
doaj   +1 more source

Electromagnetic force on a brane [PDF]

Classical and Quantum Gravity, 2016
8 ...
openaire   +2 more sources

Experimental study on response of carbon fiber composite with fasteners under lightning strike

Hangkong gongcheng jinzhan
Composite is widely used in aircraft structure, and its lightning protection methods are becoming increasingly mature, but the research on conducted lightning current at the joint of metal fasteners and composite is still incomplete.
YAO Junjun, LI Dan, HE Zheng, XIONG Xiu
doaj   +1 more source

Hierarchical Role-Based Multi-Agent Reinforcement Learning for UHF Radiation Source Localization with Heterogeneous UAV Swarms

Drones
With the continuous proliferation of radio frequency devices, electromagnetic environments in various regions are becoming increasingly complex. Effective monitoring of the electromagnetic environment and identification of interference sources have thus ...
Yuanqiang Sun, Xueqing Zhang, Menglin Wang, Yangqiang Yang, Tao Xia, Xuan Zhu, Tonghe Cui   +6 more
doaj   +1 more source