Results 51 to 60 of about 175,241 (351)

Comparison of Induction and PM Synchronous motor drives for EV application including design examples [PDF]

open access: yes, 2012
Three different motor drives for electric traction are compared, in terms of output power and efficiency at the same stack dimensions and inverter size. Induction motor (IM), surface-mounted permanent-magnet (PM) (SPM), and interior PM (IPM) synchronous ...
Boazzo, Barbara   +3 more
core   +1 more source

Value of MRI Outcomes for Preventive and Early‐Stage Trials in Spinocerebellar Ataxias 1 and 3

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To examine the value of MRI outcomes as endpoints for preventive and early‐stage trials of two polyglutamine spinocerebellar ataxias (SCAs). Methods A cohort of 100 participants (23 SCA1, 63 SCA3, median Scale for the Assessment and Rating of Ataxia (SARA) score = 5, 42% preataxic, and 14 gene‐negative controls) was scanned at 3T up ...
Thiago J. R. Rezende   +26 more
wiley   +1 more source

Analytical modelling and analysis of magnet eddy current loss in magnet‐surrounded permanent magnet synchronous machine caused by stator slot effect

open access: yesIET Electric Power Applications
To improve the machine torque density, this paper proposes a magnet‐surrounded permanent magnet synchronous machine (MSPMSM). As the critical material of MSPMSM, the permanent magnet (PM) will produce significant eddy current loss under the action of ...
Yuhang Long, Zhanfeng Song
doaj   +1 more source

Loss-based structures and frequency dependencies of giant magnetostrictive materials for rotary ultrasonic machining applications

open access: yesJournal of Science: Advanced Materials and Devices, 2023
This paper investigates rotating magnetostrictive ultrasonic transducers (RMUT) with eddy current losses to enhance the stability requirements of high-power ultrasonic vibration processing in defense and military industries.
Yunshuai Chen   +4 more
doaj   +1 more source

Computationally Efficient Strand Eddy Current Loss Calculation in Electric Machines [PDF]

open access: yes, 2019
A fast finite element (FE) based method for the calculation of eddy current losses in the stator windings of randomly wound electric machines is presented in this paper.
Chong, Yew Chuan   +5 more
core   +1 more source

Evaluation of loss generated by edge burrs in electrical steels [PDF]

open access: yes, 2016
In large motor cores, faults caused by edge burrs between the core laminations can result in short circuit currents which may be large enough to cause burning or complete machine failure.
Anayi, Fatih, Eldieb, Asheraf
core   +2 more sources

Normal‐Appearing White Matter Injury Mediates Chronic Deep Venous Hypoxia and Disease Progression in Multiple Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore how cerebral hypoxia and Normal‐Appearing White Matter (NAWM) integrity affect MS lesion burden and clinical course. Methods Seventy‐nine MS patients, including 13 clinically isolated syndrome (CIS) patients and 66 relapsing–remitting multiple sclerosis (RRMS) patients, and 44 healthy controls (HCs) were recruited from ...
Xinli Wang   +8 more
wiley   +1 more source

Eddy current loss calculation and thermal analysis of axial-flux permanent magnet couplers

open access: yesAIP Advances, 2017
A three-dimensional magnetic field analytical model of axial-flux permanent magnet couplers is presented to calculate the eddy current loss, and the prediction of the copper plate temperature under various loads is analyzed.
Di Zheng   +5 more
doaj   +1 more source

A Study on Eddy Current Reduction Shape of Single-Phase Claw-Pole Motor

open access: yesActuators, 2023
The claw-pole motor, known for its simple structure, is widely used in various fields due to its cost competitiveness. However, a drawback of the fixed-stator-type claw-pole motor is its vulnerability to eddy current losses.
Na-Rim Jo   +5 more
doaj   +1 more source

Computationally Efficient 3D Eddy Current Loss Prediction in Magnets of Interior Permanent Magnet Machines [PDF]

open access: yes, 2016
This paper proposes a computationally efficient method based on imaging technique, for accurate prediction of 3- dimensional (3D) eddy current loss in the rotor magnets of interior permanent magnet (IPM) machines.
Chen, L.   +5 more
core   +1 more source

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