Results 11 to 20 of about 269,347 (293)

Use of triple beam resonant gauges in torque measurement transfer standard [PDF]

open access: yes, 2010
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.A new torque transfer standard using metallic TBTF resonant sensor was developed to overcome the overload capability problem which occurs with conventional ...
Intiang, Jittakant
core   +7 more sources

Entropic Torque [PDF]

open access: yesPhysical Review Letters, 2002
Quantitative predictions are presented of a depletion-induced torque and force acting on a single colloidal hard rod immersed in a solvent of hard spheres close to a planar hard wall. This torque and force, which are entirely of entropic origin, may play an important role for the key-lock principle, where a biological macromolecule (the key) is only ...
Roth, R.   +4 more
openaire   +7 more sources

RADIATIVE TORQUES ALIGNMENT IN THE PRESENCE OF PINWHEEL TORQUES [PDF]

open access: yesThe Astrophysical Journal, 2009
23 pages and 15 figures emulated ApJ style.
Hoang, T., Lazarian, A.
openaire   +2 more sources

MODELS OF SPIN TORQUE USING SELF-CONSISTENT SOLUTIONS OF THE MAGNETISATION AND SPIN ACCUMULATION [PDF]

open access: yes, 2013
A model of spin accumulation (m) is proposed to develop theoretical approaches to calculate the m in any arbitrary magnetic structure. The model is based on generalising the approach of Zhang, Levy and Fert (PRL 88, 236601, 2002).
Chureemart, Phanwadee
core   +6 more sources

A new technique of cogging torque suppression in direct-drive permanent-magnet brushless machines [PDF]

open access: yes, 2010
In direct-drive electric propulsion systems, where there is no reduction gear to minimize and absorb the adverse effects of cogging torque generated by the permanent-magnet (PM) machine, minimization of cogging torque generation is of particular ...
Luk, Patrick Chi-Kwong, Fei, Wei-Zhong
core   +1 more source

Torque ripple reduction of a direct-drive permanent-magnet synchronous machine by material-efficient axial pole pairing [PDF]

open access: yes, 2011
This paper investigates a material-efficient axial pole pairing method for torque ripple reduction in a direct-drive outer-rotor surface-mounted permanent-magnet synchronous machine.
Patrick Chi-Kwong Luk   +3 more
core   +1 more source

A Comparative Analysis of Political Competition in Angola, Namibia, and South Africa [PDF]

open access: yesPalgo Journal of Education Research
This article undertakes a comparative and longitudinal analysis of trends and patterns of political competition in Angola, Namibia, and South Africa, focusing on the evolution of liberation-movement dominance in post-independence Southern Africa ...
Kulobone, Alberts Munyanya, Mude, Torque
doaj   +1 more source

A Self-Learning Solution for Torque Ripple Reduction for Non-Sinusoidal Permanent Magnet Motor Drives Based on Artificial Neural Networks [PDF]

open access: yes, 2013
This paper presents an original method, based on artificial neural networks, to reduce the torque ripple in a permanent-magnet non-sinusoidal synchronous motor.
WIRA, Patrick   +7 more
core   +1 more source

Automated procedure for determination of friction grip and bearing joint strength used for space missions [PDF]

open access: yesINCAS Bulletin, 2018
This paper presents an algorithm that calculates the nominal torque for friction grip joints, followed by its implementation in a Microsoft Excel worksheet that is automated by a macro written in Visual Basic.
Stefan HOTHAZIE   +4 more
doaj   +1 more source

A general magnetic-energy-based torque estimator: validation via a permanent-magnet motor drive [PDF]

open access: yes, 2008
This paper describes the use of the current–flux-linkage ($i{-}psi$ ) diagram to validate the performance of a general magnetic-energy-based torque estimator.
McGilp, M.I.   +5 more
core   +1 more source

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