Results 11 to 20 of about 7,856,512 (343)

Magnetization loss of nanocrystalline soft magnets [PDF]

open access: yesJournal of Physics: Conference Series, 2009
FeCuNbSiB-ribbons with optimized nanocrystalline microstructure possess a unique combination of near-zero magnetostriction, high saturation induction and low magnetization losses. Due to the absence of distinct intrinsic anisotropies, the magnetization curve can be adjusted by field-annealing to square or flat shape. It is well known that excess losses
Sybille Flohrer, Giselher Herzer
openaire   +1 more source

Variation of Core Loss in High-Frequency Transformers Under Different Load Conditions

open access: yesIEEE Open Journal of the Industrial Electronics Society, 2023
Typically, the core loss of transformers is considered constant, regardless of the load conditions on the secondary side. However, this assumption is no longer valid for high-frequency transformers (HFTs).
Navid Rasekh, Jun Wang, Xibo Yuan
doaj   +1 more source

Excellent, Lightweight and Flexible Electromagnetic Interference Shielding Nanocomposites Based on Polypropylene with MnFe2O4 Spinel Ferrite Nanoparticles and Reduced Graphene Oxide

open access: yesNanomaterials, 2020
In this work, various tunable sized spinel ferrite MnFe2O4 nanoparticles (namely MF20, MF40, MF60 and MF80) with reduced graphene oxide (RGO) were embedded in a polypropylene (PP) matrix.
Raghvendra Singh Yadav   +11 more
doaj   +1 more source

Loss Mitigation in Self-Biased Microstrip Circulators

open access: yesMagnetism, 2023
Integration of the ferrite devices in the RF front-end and active antennas is hindered by the need for external magnets, biasing soft microwave ferrites.
Lingqi Kong   +4 more
doaj   +1 more source

Enhanced electromagnetic wave absorption property of binary ZnO/NiCo2O4 composites

open access: yesJournal of Advanced Ceramics, 2021
Nowadays, metal oxide-based electromagnetic wave absorbing materials have aroused widely attentions in the application of telecommunication and electronics due to their selectable mechanical and outstanding dielectric properties.
Bin Du   +5 more
doaj   +1 more source

Magnetisation and transport current loss of a BSCCO/Ag tape in an external AC magnetic field carrying an AC transport current [PDF]

open access: yes, 1999
In practical applications, BSCCO/Ag tapes are exposed to external AC magnetic field and fed with an AC transport current. The total AC loss can be separated in two contributions: first, the transport current loss influenced by an external AC magnetic ...
Haken, B. ten   +3 more
core   +3 more sources

Magnetization losses in multifilament coated superconductors [PDF]

open access: yesApplied Physics Letters, 2005
We report the results of a study of the magnetization losses in experimental multifilament, as well as control (uniform) coated superconductors exposed to time-varying magnetic fields of various frequencies. Both the hysteresis loss, proportional to the sweep rate of the applied magnetic field, and the coupling loss, proportional to the square of the ...
Levin, G. A.   +5 more
openaire   +2 more sources

Sensorless PMSM Drive Implementation by Introduction of Maximum Efficiency Characteristics in Reference Current Generation

open access: yesEnergies, 2019
This paper presents the efficiency improvement in a speed closed-loop controlled permanent magnet synchronous machine (PMSM) sensorless drive. The drive efficiency can be improved by minimizing the inverter and the PMSM losses. These can be influenced by
Željko Plantić   +3 more
doaj   +1 more source

Improved magnetic loss for TLM [PDF]

open access: yesElectronics Letters, 1993
A new way of modelling magnetic losses which closely approximates the behaviour of real ferrite materials using the transmission line matrix (TLM) method is described. Numerical results are presented which demonstrate the accuracy possible with this method.
openaire   +2 more sources

Magnetic Field, Dust, and Axisymmetrical Mass Loss on the AGB [PDF]

open access: yes, 1998
I propose a mechanism for axisymmetrical mass loss on the asymptotic giant branch, that may account for the axially symmetric structure of elliptical planetary nebulae.
Soker, Noam
core   +2 more sources

Home - About - Disclaimer - Privacy