Results 21 to 30 of about 532,853 (283)

Spin-Torque Generation in Topological-Insulator-Based Heterostructures [PDF]

open access: yes, 2016
Heterostructures utilizing topological insulators exhibit a remarkable spin-torque efficiency. However, the exact origin of the strong torque, in particular whether it stems from the spin-momentum locking of the topological surface states or rather from ...
Fischer, Mark H   +3 more
core   +2 more sources

Noise mitigation in dual three-phase internal permanent magnet machines by injection of current harmonics

open access: yesThe Journal of Engineering, 2019
Steadily increasing power demands are linked with the ongoing process of electrifying the powertrain for dominant and pure electric vehicles. Fulfilling those requirements can be achieved by a multiphase approach which is implemented with a six-phase ...
Philipp Hollstegge   +2 more
doaj   +1 more source

Inertial Measurement Unit Based Hip Flexion Strength-Power Test for Sprinters

open access: yesFrontiers in Sports and Active Living, 2020
This study aimed to examine whether a recently developed inertial measurement unit (IMU)-based hip flexion strength-power test could be an indicator of sprint performance, step length (SL) and frequency (SF) during sprinting using sprinters. Sixteen well-
Ryu Nagahara, Munenori Murata
doaj   +1 more source

Buckling resistance, torque, and force generation during retreatment with D-RaCe, HyFlex Remover, and Mtwo retreatment files [PDF]

open access: yesRestorative Dentistry & Endodontics, 2023
ObjectivesThis study compared the buckling resistance of 3 nickel-titanium (NiTi) retreatment file systems and the torque/force generated during retreatment.Materials and MethodsThe buckling resistance was compared among the D-RaCe (DR2), HyFlex Remover,
Yoojin Kim, Seok Woo Chang, Soram Oh
doaj   +1 more source

Design and Development of Low Torque Ripple Variable-Speed Drive System With Six-Phase Switched Reluctance Motors [PDF]

open access: yes, 2018
Switched reluctance motor (SRM) drives conventionally use current control techniques at low speed and voltage control techniques at high speed. However, these conventional methods usually fail to restrain the torque ripple, which is normally associated ...
Deng, Xu   +3 more
core   +2 more sources

Fast and Accurate Traction Induction Machine Performance Calculation Method for Integrated Onboard Charging in Vehicle to Grid Application

open access: yesFrontiers in Energy Research, 2022
Reusing traction electric machine windings in electric vehicles as an integrated filtering inductor is a promising solution to reduce the size of the vehicle to grid (V2G) charging/discharging system.
Haiwei Cai   +5 more
doaj   +1 more source

Orbital torque: Torque generation by orbital current injection [PDF]

open access: yesPhysical Review Research, 2020
We propose a mechanism of torque generation by injection of an orbital current, which we call $\textit{orbital torque}$. In a magnetic bilayer consisting of a nonmagnet (NM) and a ferromagnet (FM), we consider a situation where the spin-orbit coupling (SOC) is present only in the FM.
Dongwook Go, Hyun-Woo Lee
openaire   +5 more sources

Spin-torque efficiency enhanced by Rashba spin splitting in three dimensions

open access: yes, 2012
We examine a spin torque induced by the Rashba spin-orbit coupling in three dimensions within the Boltzmann transport theory. We analytically calculate the spin torque and show how its behavior is related with the spin topology in the Fermi surfaces by ...
E. I. Rashba   +5 more
core   +1 more source

Muscle Function and Fatigability of Trunk Flexors in Males and Females [PDF]

open access: yes, 2017
Background Optimal function of the abdominal muscles is necessary for several life functions including lifting and carrying tasks. Sex differences in strength and fatigability are established for many limb muscles and back extensor muscles, but it is ...
Deering, Rita   +4 more
core   +2 more sources

Steady Stokes flow past dumbbell shaped axially symmetric body of revolution: An analytic approach [PDF]

open access: yesTheoretical and Applied Mechanics, 2012
In this paper, the problem of steady Stokes flow past dumbbell-shaped axially symmetric isolated body of revolution about its axis of symmetry is considered by utilizing a method (Datta and Srivastava, 1999) based on body geometry under the ...
Srivastava Kumar Deepak   +2 more
doaj   +1 more source

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