Results 21 to 30 of about 186,585 (293)

Kinematic and Dynamic Analysis of Eccentric Balanced Positive Torque Pumping Unit

Machines
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, Wensong Wang, Wei Li, Qijun Zhu, Hui Lu   +4 more
doaj   +1 more source

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

Gong-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

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

Scientific 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, Kenneth Sundaraj, Jawad Hussain, Chee Kiang Lam, Zeshan Ahmad   +4 more
doaj   +1 more source

A note on the cyclic evolution of the pulsar magnetosphere

, 2007
Positive and negative pulsar breaking indices suggest that some fraction of the pulsar spindown torque undergoes a cyclic evolution. The observed strong correlation of `anomalous' breaking indices with pulsar age implies that the characteristic ...
Blandford, Bogovalov, Contopoulos, Contopoulos, Contopoulos, Contopoulos, Contopoulos, Coroniti, I. Contopoulos, Kirk, Kundt, Lyubarsky, Manchester, Michel, Romanova, Scharlemann   +15 more
core   +1 more source

Effect of winding harmonics on the asynchronous torque of a single-phase line start permanant-magnet motor [PDF]

, 2005
This paper presents an analytical method for calculating the effect of winding harmonics on the asynchronous torque of a single-phase line-start permanent-magnet motor.
daSilva, C., Kalluf, F.J.H., McGilp, M.I., Miller, T.J.E., Popescu, M., von Dokonal, L.   +5 more
core   +1 more source

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

Advances 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

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

, 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, Freimuth, Frank, Go, Dongwook, Gomonay, Olena, Haney, Paul M., Hanke, Jan-Philipp, Lee, Hyun-Woo, Lee, Kyung-Jin, Mokrousov, Yuriy, Xue, Fei   +9 more
core   +1 more source

A review on optical torques: from engineered light fields to objects

Opto-Electronic Science
In recent decades, optical micro/nano manipulation has made remarkable strides in the fields of biology and the physical sciences, benefiting from both theoretical and experimental advances in optical forces.
Tao He, Jingyao Zhang, Din Ping Tsai, Junxiao Zhou, Haiyang Huang, Weicheng Yi, Zeyong Wei, Yan Zu, Qinghua Song, Zhanshan Wang, Cheng-Wei Qiu, Yuzhi Shi, Xinbin Cheng   +12 more
doaj   +1 more source

Negative Optical Torque

, 2014
Maxwell noted that light carries angular momentum, and as such it can exert torques on material objects. This was subsequently proved by Beth in 1936.
Chan, C. T., Chen, Jun, Ding, Kun, Fung, Kin Hung, Lin, Zhifang, Ng, Jack   +5 more
core   +3 more sources

Nonlinearity of Magnetostrictive Torque Sensor under Varying External Magnetic Field Strength

Current Directions in Biomedical Engineering, 2021
Correctly torquing bone screws is an important factor in achieving positive patient outcomes during orthopaedic surgery. A torque-limiting smart screwdriver concept has been proposed, and ongoing work is being undertaken to model the screwing process and
Wilkie Jack A., Moeller Knut
doaj   +1 more source