Results 21 to 30 of about 913,403 (346)

Loss Calculation and Thermal Analysis for High-Speed Permanent Magnet Synchronous Machines

open access: yesIEEE Access, 2020
The small size of high-speed permanent magnet synchronous machines (PMSMs) makes the increase of loss density and the difficulty of heat dissipation.
Chao Zhang   +3 more
doaj   +1 more source

Electrostatic Simulations for the DUNE ND-GAr Field Cage

open access: yesParticles, 2022
ND-GAr is one of three detector systems in the design of the DUNE Near Detector complex, which will be located on the Fermilab campus, sixty meters underground and 570 m from the source of an intense neutrino beam. ND-GAr will consist of a cylindrical 10-
Christopher Hayes, Jon Urheim
doaj   +1 more source

Superconducting pipes and levitating magnets [PDF]

open access: yes, 2006
Motivated by a beautiful demonstration of the Faraday's and Lenz's law in which a small neodymium magnet falls slowly through a conducting non-ferromagnetic tube, we consider the dynamics of a magnet falling through a superconducting pipe.
Felipe B. Rizzato   +3 more
core   +2 more sources

In vivo 3D brain and extremity MRI at 50 mT using a permanent magnet Halbach array

open access: yesMagnetic Resonance in Medicine, 2020
To design a low‐cost, portable permanent magnet‐based MRI system capable of obtaining in vivo MR images within a reasonable scan time.
T. O’Reilly   +4 more
semanticscholar   +1 more source

Analytical Model of Magnet Eddy-Current Volume Losses in Multi-phase PM Machines with Concentrated Winding [PDF]

open access: yes, 2012
Thanks to IEEE. The original PDF of the article can be found at: http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=6342330&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D6342330 MHYGALE, project managed by VALEO-EEMthis ...
ASLAN, Bassel   +2 more
core   +4 more sources

FINITE ELEMENT ANALYSIS OF A SINGLE-PHASE INDUCTION MOTOR WITH NON-UNIFORM STATOR SLOTS BASED ON MAGNET SOFTWARE AND AUTOCAD

open access: yesJournal of Engineering and Sustainable Development, 2022
The current study uses the finite element technique to investigate a single-phase induction motor with non-uniform stator slots. A 0.5 hp, four poles, 36 stator slots, and 48 rotor slots have non-uniform stator slots was analyzed based on magnet Finite ...
Marwa A. Dawood, Amer M. Ali
doaj   +1 more source

Iron loss in permanent-magnet brushless AC machines under maximum torque per ampere and flux weakening control [PDF]

open access: yes, 2002
The airgap flux density distribution, flux density loci in the stator core, and the associated iron loss in two topologies of brushless AC motor, having a surface-mounted magnet rotor and an interior-mounted magnet rotor, respectively, are investigated ...
Chen, Y.S., Howe, D., Zhu, Z.Q.
core   +1 more source

A Nonlinear Impact-Driven Triboelectric Vibration Energy Harvester for Frequency Up-Conversion

open access: yesMicromachines, 2023
Energy harvesting effectively powers micro-sensors and wireless applications. However, higher frequency oscillations do not overlap with ambient vibrations, and low power can be harvested.
Hadeel Abumarar, Alwathiqbellah Ibrahim
doaj   +1 more source

Reduction of cogging torque in interior-magnet brushless machines [PDF]

open access: yes, 2003
An investigation into the cogging torque in a four-pole interior-magnet brushless machines having either a six-slot stator and a short-pitched nonoverlapping winding or a 12-slot stator and a full-pitched overlapping winding is described.
Howe, D.   +3 more
core   +1 more source

Magnetic hysteresis up to 80 kelvin in a dysprosium metallocene single-molecule magnet

open access: yesScience, 2018
Breaking through the nitrogen ceiling Single-molecule magnets could prove useful in miniaturizing a wide variety of devices. However, their application has been severely hindered by the need to cool them to extremely low temperature using liquid helium ...
Fu-Sheng Guo   +5 more
semanticscholar   +1 more source

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