Results 41 to 50 of about 380,880 (314)

Exchange coupling between soft magnetic ferrite and hard ferromagnetic Sm2Fe17N3 in ferrite/Sm2Fe17N3 composites

open access: yesAIP Advances, 2016
In our previous work, we succeeded in fabricating ferrite/Sm2Fe17N3 composite magnets from explosive-consolidating Sm2Fe17N3 powders (2μm size) which were coated with a continuous iron ferrite layer (50nm thick) in an aqueous solution.
N. Imaoka   +6 more
doaj   +1 more source

Optimized design of a high-power-density PM-assisted synchronous reluctance machine with ferrite magnets for electric vehicles

open access: yesArchives of Electrical Engineering, 2017
This paper proposes a permanent magnet (PM)-assisted synchronous reluctance machine (PMASynRM) using ferrite magnets with the same power density as rareearth PM synchronous motors employed in Toyota Prius 2010.
Liu Xiping   +4 more
doaj   +1 more source

Design and Applications of Multi‐Frequency Programmable Metamaterials for Adaptive Stealth

open access: yesAdvanced Functional Materials, EarlyView.
This article provides a comprehensive overview of metamaterials, including their fundamental principles, properties, synthesis techniques, and applications in stealth, as well as their challenges and future prospects. It covers topics that are more advanced than those typically discussed in existing review articles, while still being closely connected ...
Jonathan Tersur Orasugh   +4 more
wiley   +1 more source

Analysis of permanent magnets as elasmobranch bycatch reduction devices in hook-and-line and longline trials [PDF]

open access: yes, 2011
Previous studies indicate that elasmobranch fishes (sharks, skates and rays) detect the Earth’s geomagnetic field by indirect magnetoreception through electromagnetic induction, using their ampullae of Lorenzini. Applying this concept, we evaluated the
Abel, Daniel C.   +3 more
core  

Establishing the Relative Merits of Interior and Spoke-Type Permanent-Magnet Machines With Ferrite or NdFeB Through Systematic Design Optimization [PDF]

open access: yes, 2015
In this paper, a multiobjective design optimization method combining design-of-experiments techniques and differential-evolution algorithms is presented.
Demerdash, Nabeel   +3 more
core   +2 more sources

Reconfigurable Metamirrors Based on Compliant Mechanisms

open access: yesAdvanced Functional Materials, EarlyView.
Providing the basis for numerous practical applications, the reconfigurability of metadevices is of great importance. Through the integration of controlled mechanical deformation with chiral meta‐atoms, a compliant mechanism based metamirror is demonstrated for active control over the polarization of electromagnetic waves.
Galestan Mackertich‐Sengerdy   +3 more
wiley   +1 more source

Ferrite-based axial flux permanent magnet generator for wind turbines

open access: yesThe Journal of Engineering, 2019
This study presents the development of a framework used to optimise and experimentally validate a novel axial flux direct-drive (DD) permanent magnet generator (PMG) for the offshore wind turbine market.
Alex N. Ridge   +3 more
doaj   +1 more source

Fast minute magnetic field coil for time-resolved nanospintronics

open access: yes, 2014
Nanospintronic and related research often requires the application of fast rising magnetic field pulses in the plane of the studied planar structure. We have designed and fabricated sub-milimeter-sized coils capable of delivering pulses of the magnetic ...
Pawliszak, Łukasz   +2 more
core   +1 more source

Synthesis of strontium ferrite/iron oxide exchange coupled nano-powders with improved energy product for rare earth free permanent magnet applications [PDF]

open access: yes, 2016
We present a simple, scalable synthesis route for producing exchange coupled soft/hard magnetic composite powder that outperforms pure soft and hard phase constituents.
Garay, J. E.   +2 more
core   +1 more source

Biocompatible PVDF Nanofibers with Embedded Magnetite Nanodiscs Enable Wireless Magnetoelectric Stimulation in Premotor Cortex

open access: yesAdvanced Healthcare Materials, EarlyView.
Flexible, biocompatible PVDF nanofibers embedded with magnetite nanodiscs enable wireless magnetoelectric neuromodulation. Shape anisotropy of the nanodiscs facilitates magnetostrictive strain transfer under alternating magnetic fields, allowing activation of neurons in vitro and behavioral modulation in vivo, without requiring rigid implants or ...
Lorenzo Signorelli   +11 more
wiley   +1 more source

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