Results 41 to 50 of about 1,081 (308)

Numerical Study of Hall Thruster Plume and Sputtering Erosion

Journal of Applied Mathematics, 2012
Potential sputtering erosion caused by the interactions between spacecraft and plasma plume of Hall thrusters is a concern for electric propulsion. In this study, calculation model of Hall thruster’s plume and sputtering erosion is presented.
Li Yan, Ping-Yang Wang, Yang-Hua Ou, Xiao-Lu Kang   +3 more
doaj   +1 more source

LEAD: Literature Enhanced Ab Initio Discovery of Nitride Dusting Layers for Enhanced Tunnel Magnetoresistance and Lower Resistance Magnetic Tunnel Junctions

Advanced Materials, EarlyView.
Magnetic tunnel junctions (MTJs) using MgO tunnel barriers face challenges of high resistance‐area product and low tunnel magnetoresistance (TMR). To discover alternative materials, Literature Enhanced Ab initio Discovery (LEAD) is developed. The LEAD‐predicted materials are theoretically evaluated, showing that MTJs with dusting of ScN or TiN on ...
Sabiq Islam, William S. Rogers, Chen‐Yu Hu, Ming‐Yuan Song, Xinyu Bao, Shehrin Sayed, Jean Anne C. Incorvia   +6 more
wiley   +1 more source

Fundamental Ion-Surface Interactions in Plasma Thrusters [PDF]

, 2007
Ion thrusters offer the potential to enable many future interplanetary robotic missions presently under consideration by NASA. To realize the benefits offered by these low thrust devices, the sputtering mechanisms that are responsible for the ...
Kolasinski, Robert David
core   +1 more source

HALL-EFFECT THRUSTER ST-25 WITH PERMANENT MAGNET

, 2021
Results of development and experimental tests of Hall-effect Thruster ST-25 are presented. This thruster is intended for application on small space vehicles.
Sergey Nikolaevich Kulagin, Dmitry Konstantinovich Voronovsky, Victor Vladimirovich Maslov, Stanislav Victorovich Tolok, Tolok , Stanislav Victorovich, Voronovsky, Dmitry Konstantinovich, Olexandr Nikolaevich Petrenko, Kulagin, Sergey Nikolaevich, Petrenko , Olexandr Nikolaevich, Maslov , Victor Vladimirovich   +9 more
core   +1 more source

Room‐Temperature Skyrmionic Synapse in 2D Ferromagnet Fe3GaTe2 Operating via Collective Spin Texture Transformation

Advanced Materials, EarlyView.
We demonstrate a neuromorphic synapse in 2D Fe3GaTe2 flakes. The device operates via a current‐driven transformation from a skyrmion‐lattice to a stripe‐domain state, yielding a linear anomalous Hall resistance response with a tunable slope to enable multiply‐accumulate operations. Simulations confirm its viability in artificial neural networks.
Jixiang Huang, Tongji Zhu, PeiYu Cai, Xiaoming Ma, Zhen Wang, Ruifu Zhang, Yi Hao, Jingdi Lu, Liubing He, Jun Xu, Yuejie Zhang, Wanjun Jiang, Jing Tao, Shiming Lei, Pavel Parchinskiy, Jing Teng, Lingfei Wang, Wei Niu, Elton J.G. Santos, Xiaoqian Zhang, Peng Li   +20 more
wiley   +1 more source

Robust Model Predictive Control for Satellite Orbit Maintenance Using Hall Effect Thrusters [PDF]

فناوری در مهندسی هوافضا
In this article, a robust model predictive controller is designed for maintaining the satellite's low earth orbit in the presence of perturbations and uncertainties.
Masumeh kiantaj, Morteza Farhid, Moharram Shameli   +2 more
doaj   +1 more source

New‐Era Polymer Thermoelectrics: Material Innovations, Doping Frontiers, Decoupling Strategies, and Unconventional Applications

Advanced Materials, EarlyView.
The field of polymer thermoelectrics is entering a new era, featuring breakthroughs in addressing the conventional performance disparity between p‐type and n‐type polymers, pioneering doping frontiers, and sophisticated decoupling strategies. This review explores innovations in molecular design and superior stabilities, bridging the gap from ...
Suhao Wang
wiley   +1 more source

Effect of dust on tilted electrostatic resistive instability in a Hall thruster

Journal of Theoretical and Applied Physics, 2018
Effect of negatively charged dust on resistive instability corresponding to the electrostatic wave is investigated in a Hall thruster plasma when this purely azimuthal wave is tilted and strong axial component of wave vector is developed.
Jasvendra Tyagi, Sukhmander Singh, Hitendra K. Malik   +2 more
doaj   +1 more source

All‐Polyimide‐Mediated Liquid Metal Assembly on Aerogels for Breathable and Robust Electronic Skins

Advanced Materials, EarlyView.
An all‐polyimide‐mediated assembly strategy resolves the fundamental conflict between physiological breathability and electromechanical robustness in wearable electronics. By integrating a polyamic acid‐encapsulated liquid metal ink onto an ultralight polyimide aerogel, imidization‐induced contraction enables low‐temperature conductive activation and ...
Haijun Zhu, Jiancheng Dong, Hao Qiu, Je Hyeong Kim, Xingyu Liu, Shiyin Lin, Mengting Zheng, Chang Zhou, Yuduo Zhang, Jiayu Hou, Kangjia Geng, Yuchen Wang, Yidong Peng, Haoran Liu, Guanzheng Wu, Yunpeng Huang, Yongsheng Luo, Steve Park, Tianxi Liu   +18 more
wiley   +1 more source

PPU MK3 For 5 KW Hall Effect Thrusters 11th European Space Power Conference

E3S Web of Conferences, 2017
Thales Alenia Space Belgium (ETCA) has developed and qualified the PPU Mk3, dedicated to 5kW Hall Effect Thrusters, to reply to the market demand of full electric satellites performing the Orbit Raising with Electrical Propulsion. The PPU Mk3 is based on
Bourguignon Eric, Fraselle Stéphane
doaj   +1 more source