Results 121 to 130 of about 11,992 (214)

Demagnetization Fault Location of Direct-Drive Permanent Magnet Synchronous Motor Based on Search Coil Data-Driven

open access: yesApplied Sciences
Demagnetization faults in direct-drive permanent magnet synchronous motors (DDPMSM) can cause significant performance degradation and unplanned downtime.
Caixia Gao   +3 more
doaj   +1 more source

Magneto‐responsive fibers and fabrics for soft systems

open access: yesFlexMat, EarlyView.
Abstract The combination of functional materials in fiber form has led to a surge in the integration of functional fibers and fabrics into soft systems that span sensing, communication, and actuation domains. A key subset is magnetic fibers and fabrics.
Hanlin Zhu   +8 more
wiley   +1 more source

Modeling demagnetization of sintered NdFeB magnet material in time-discretized finite element analysis [PDF]

open access: yes, 2011
The aim of this work was to develop a tool able to simulate the behavior of a permanent magnet machine after demagnetization. The tool would include a demagnetization model, an eddy current model, and a thermal model.
Ruoho, Sami
core   +1 more source

Patient Experience of Undergoing MRI With a New Active Transcutaneous Bone‐Anchored Hearing Implant

open access: yesThe Laryngoscope, EarlyView.
Active transcutaneous bone‐anchored hearing implants belong to a class of devices that may pose challenges in magnetic resonance imaging (MRI) settings. In this prospective study, all MRI scans in patients (n = 15) with the Sentio Ti implant were completed without complications, and patients reported generally positive experiences with low levels of ...
Carine Hajema   +10 more
wiley   +1 more source

Demagnetization Procedure for the MBN Magnets

open access: yes, 2002
Results from demagnetization tests of an MBN magnet are reported here. Following a "texbook" demagnetization procedure where alternating polarity current settings from saturation (1500A) down to 1% of this (15A) are applied, a remnant field of the order ...
Efthymiopoulos, I, Dutour, J, Cornuet, D
core  

Three-stage ultrafast demagnetization dynamics in a monolayer ferromagnet

open access: yesNature Communications
Intense laser pulses can be used to demagnetize a magnetic material on an extremely short timescale. While this ultrafast demagnetization offers the potential for new magneto-optical devices, it poses challenges in capturing coupled spin-electron and ...
Na Wu   +4 more
doaj   +1 more source

Advanced Sensing Materials and Their Applications for Power Sensors

open access: yesHigh Voltage, EarlyView.
ABSTRACT The construction of new‐generation power systems imposes stringent requirements on the safety and reliability of critical equipment, making accurate state perception essential for grid security and digital transformation. Sensing materials fundamentally determine sensor performance in terms of sensitivity, bandwidth, environmental adaptability
Weigen Chen   +8 more
wiley   +1 more source

Ferromagnetic Core Demagnetization Procedures

open access: yes
Ovaj rad obrađuje problematiku zaostalog magnetskog toka u feromagnetskim jezgrama, s naglaskom na njegove negativne posljedice u transformatorima i mjernim uređajima.
Zovko, Valentina
core  

Achieving Ultra‐Low Megahertz Loss in Nanocrystalline Magnetic Powder Cores via Alloy Design and a Self‐Healing Organic–Inorganic‐Derived Hybrid Insulating Layer

open access: yesAdvanced Chemical Engineering, Volume 1, Issue 2, December 2026.
A novel self‐healing FePO4/B2O3/epoxy hybrid insulating layer is designed for high‐frequency Fe‐based nanocrystalline magnetic powder cores. During 530°C annealing, the low‐melting‐point B2O3 softens, flowing into micro‐cracks formed within the brittle FePO4 framework during cold pressing. This in situ gap‐filling mechanism effectively suppresses inter‐
Cheng Chen   +10 more
wiley   +1 more source

Dependence of the Extra‐Cellular Diffusion Coefficient on the Fractions of Neurites and Cell Bodies in Gray Matter

open access: yesMagnetic Resonance in Medicine, Volume 96, Issue 5, Page 2426-2439, November 2026.
Purpose The dependence of the long‐time (tortuosity) limit of the extra‐cellular diffusivity on the intra‐cellular volume fraction is of fundamental importance for microstructure modeling. While such dependencies have been explored for the white matter, the tortuosity limit in gray matter is unknown due to complex cell composition and geometry. Here we
Hong‐Hsi Lee   +6 more
wiley   +1 more source

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