Results 21 to 30 of about 185,318 (292)

Theory of Current-Induced Angular Momentum Transfer Dynamics in Spin-Orbit Coupled Systems

open access: yes, 2020
Motivated by the importance of understanding competing mechanisms to current-induced spin-orbit torque in complex magnets, we develop a unified theory of current-induced spin-orbital coupled dynamics.
Blügel, Stefan   +9 more
core   +1 more source

Analysis of anthropometrics and mechanomyography signals as forearm flexion, pronation and supination torque predictors

open access: yesScientific Reports, 2022
This study aimed to analyze anthropometrics and mechanomyography (MMG) signals as forearm flexion, pronation, and supination torque predictors. 25 young, healthy, male participants performed isometric forearm flexion, pronation, and supination tasks from
Irsa Talib   +4 more
doaj   +1 more source

Type I Migration in Radiatively Efficient Discs

open access: yes, 2010
We study Type I migration of a planet in a radiatively efficient disk using global two dimensional hydrodynamic simulations. The large positive corotation torque is exerted on a planet by an adiabatic disk at early times when the disk has the steep ...
Artymowicz   +35 more
core   +1 more source

Kinematic and Dynamic Analysis of Eccentric Balanced Positive Torque Pumping Unit

open access: yesMachines
Beam pumping units have numerous energy transfer links, significant net torque fluctuations and negative net torque in gear boxes, which lead to a high installed power and low system efficiency.
Jinchao Xu   +4 more
doaj   +1 more source

Research of two-phase excitation and stator winding mode of switched reluctance motor

open access: yesGong-kuang zidonghua, 2016
The paper took 4/6 poles three-phase switched reluctance motor and 6/8 poles four-phase switched reluctance motor as study objects, analyzed influence of winding structure and phase connection way of three-phase and four-phase switched reluctance motor ...
LIU Chengyao, PAN Zaiping
doaj   +1 more source

Optimal Pole Ratio of Spoke-type Permanent Magnet Vernier Machines for Direct-drive Applications

open access: yesCES Transactions on Electrical Machines and Systems, 2022
Due to magnetic gearing effects, spoke-type permanent magnet vernier machines (ST-PMVMs) have the merit of high torque density, where an extra torque amplification coefficient, i.e., pole ratio (the pole-pair ratio of PMs to armature windings) is ...
Yu Zhao   +5 more
doaj   +1 more source

Type I migration in optically thick accretion discs

open access: yes, 2012
We study the torque acting on a planet embedded in an optically thick accretion disc, using global two-dimensional hydrodynamic simulations. The temperature of an optically thick accretion disc is determined by the energy balance between the viscous ...
Alibert   +42 more
core   +1 more source

IPMSM torque control strategies based on LUTs and VCT feedback for robust control under machine parameter variations [PDF]

open access: yes, 2016
In recent years, Interior Permanent Magnet Synchronous Machines (IPMSMs) have attracted a considerable attention in the scientific community and industry for Electric and Hybrid Electric Vehicle (HEV) propulsion systems.
Arias Pujol, Antoni   +6 more
core   +1 more source

Research on the effects of double arc oil groove parameters on oil film torque in hydro-viscous drive

open access: yesAdvances in Mechanical Engineering, 2018
In order to study the influence of double arc oil groove parameters on oil film torque in hydro-viscous drive, the numerical simulation and parameterized analyzing platform were built. The flow field characteristics were carried out using CFX.
Hongwei Cui, Yuanyuan Deng, Zisheng Lian
doaj   +1 more source

Line-start permanent-magnet motor single-phase steady-state performance analysis [PDF]

open access: yes, 2003
This paper describes an efficient calculating procedure for the steady-state operation of a single-phase line-start capacitor-run permanent-magnet motor.
Cossar, C.   +6 more
core   +1 more source

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