Results 71 to 80 of about 18,524,351 (243)

Mechanism-Based Fault Diagnosis Deep Learning Method for Permanent Magnet Synchronous Motor

Sensors
As an important driving device, the permanent magnet synchronous motor (PMSM) plays a critical role in modern industrial fields. Given the harsh working environment, research into accurate PMSM fault diagnosis methods is of practical significance.
Li Li, Shenghui Liao, Beiji Zou, Jiantao Liu   +3 more
doaj   +1 more source

Thresholding of the Elliott-Yafet spin-flip scattering in multi-sublattice magnets by the respective exchange energies

Scientific Reports, 2021
How different microscopic mechanisms of ultrafast spin dynamics coexist and interplay is not only relevant for the development of spintronics but also for the thorough description of physical systems out-of-equilibrium.
Artur Born, Régis Decker, Robby Büchner, Robert Haverkamp, Kari Ruotsalainen, Karl Bauer, Annette Pietzsch, Alexander Föhlisch   +7 more
doaj   +1 more source

Role of spin-orbit interaction in the ultrafast demagnetization of small iron clusters [PDF]

, 2015
The ultra-fast demagnetization of small iron clusters initiated by an intense optical excitation is studied with time-dependent spin density functional theory (TDSDFT). In particular we investigate the effect of the spin-orbit interaction on the onset of
M. Stamenova, J. Simoni, S. Sanvito
semanticscholar   +1 more source

Laser‐Induced Ultrafast Magnetic Phase Transition in 2D Van Der Waals Antiferromagnetic Heterostructures

Advanced Science, EarlyView.
In this work, ultrafast laser‐induced spin transfer and spin relaxation dynamics in 2D van der Waals antiferromagnetic CrI3/CrGeTe3 heterostructures are investigated. Laser excitation is demonstrated to induce pronounced interlayer nonequilibrium spin dynamics and ultrafast magnetic moment reconstruction, driving a transition from an antiferromagnetic (
Yang Wu, Fulu Zheng, San‐Dong Guo, Thomas Frauenheim, Zhaobo Zhou, Junjie He   +5 more
wiley   +1 more source

Research on Time-varying Demagnetization Characteristics of High Torque Density Permanent Masnet Synchronous Motors

2026 IEEE 9th International Electrical and Energy Conference (CIEEC)
This paper systematically investigates the demagnetization behavior and modeling methods of sintered NdFeB permanent magnets in high-reliability permanent magnet synchronous motors under the coupling effect of multiple physical fields.
Yiguang Ma, Da-Bo Zhang, Chao-Yu Zhang, Yu-Yao Yang, Ke Zhang, Jia-Kang Li, Yuhong Lin, Hongqi Wang   +7 more
semanticscholar   +1 more source

Magnetoelectric Nanoparticle‐Based Wireless Brain–Computer Interface: Underlying Physics and Projected Technology Pathway

Advanced Science, EarlyView.
Magnetoelectric nanoparticles (MENPs) enable fully wireless, minutely invasive neuromodulation, and potentially neural recording, by converting magnetic into electric and, conversely, electric into magnetic fields, respectively, at high spatiotemporal resolution.
Elric Zhang, Max Shotbolt, Mostafa Abdel‐Mottaleb, Shawnus Chen, Victoria Andre, Jieyuan Tian, Jonathan Shulgach, Max Murphy, Brian Noga, Ping Liang, Darcy Griffin, Douglas Weber, Marta Pardo, Salvador Pane, Sakhrat Khizroev   +14 more
wiley   +1 more source

Preliminary Characterization of Submarine Basalt Magnetic Mineralogy Using Amplitude‐Dependence of Magnetic Susceptibility

Geochemistry, Geophysics, Geosystems
The past ∼200 million years of Earth's geomagnetic field behavior have been recorded within oceanic basalts, many of which are only accessible via scientific ocean drilling.
H. Yang, S. M. Tikoo, C. Carvallo, D. Bilardello, P. Solheid, K. M. Gaastra, W. W. Sager, S. Thoram, K. Hoernle, T. W. Höfig, A. Avery, A. V. DelGaudio, Y. Huang, R. Bhutani, D. M. Buchs, C. Class, Y. Dai, G. Dalla Valle, S. Fielding, S. Han, D. E. Heaton, S. Homrighausen, Y. Kubota, C.‐F. Li, W. R. Nelson, E. Petrou, K. E. Potter, S. Pujatti, J. Scholpp, J. W. Shervais, M. Tshiningayamwe, X. J. Wang, M. Widdowson   +32 more
doaj   +1 more source

Design and Multi-Objective Optimization of an Asymmetric-Rotor Permanent-Magnet-Assisted Synchronous Reluctance Motor for Improved Torque Performance

Applied Sciences
Permanent-magnet-assisted synchronous reluctance motors (PMA-SynRMs) are widely used in modern industry as a kind of electromagnetic energy conversion device with high output torque, high power density, high efficiency, and excellent speed regulation. In
Feng Xing, Jiajia Zhang, Mingming Zhang, Caiyan Qin   +3 more
doaj   +1 more source

An End-to-End, Real-Time Solution for Condition Monitoring of Wind Turbine Generators

Energies, 2020
Data-driven wind generator condition monitoring systems largely rely on multi-stage processing involving feature selection and extraction followed by supervised learning.
Adrian Stetco, Juan Melecio Ramirez, Anees Mohammed, Siniša Djurović, Goran Nenadic, John Keane   +5 more
doaj   +1 more source

Resonant optical control of the structural distortions that drive ultrafast demagnetization in Cr 2 O 3 [PDF]

, 2015
We study how the color and polarization of ultrashort pulses of visible light can be used to control the demagnetization processes of the antiferromagnetic insulator Cr$_2$O$_3$.
V. Sala, S. Dal Conte, T. Miller, D. Viola, E. Luppi, Val'erie V'eniard, G. Cerullo, S. Wall   +7 more
semanticscholar   +1 more source