Results 21 to 30 of about 11,255,110 (351)

Coherent spin dynamics and magnetization transport in nanoscale magnetism [PDF]

open access: yes, 2003
In this dissertation, we present a detailed theoretical analysis of the spin dynam- ics in small antiferromagnetic systems in view of macroscopic quantum phenom- ena, possible applications in quantum information processing, and transport of the ...
Meier, Florian
core   +1 more source

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

Strong spin-orbit interaction, helical hole states, and spin qubits in nanowires and quantum dots [PDF]

open access: yes, 2014
Semiconducting nanowires (NWs) and quantum dots (QDs) are promising platforms for spintronics and quantum computation. Great experimental and theoretical efforts have been made to continuously improve their performances, which is evident from the large ...
Klöffel, Christoph
core   +1 more source

Contact resistance, coupling and hysteresis loss measurements of ITER poloidal field joint in parallel applied magnetic field [PDF]

open access: yes, 2022
The inter-strand contact resistance and AC losses were measured on an International Thermonuclear Experimental Reactor (ITER) poloidal field (PF) coil joint in a parallel applied AC magnetic field.
Ilyin, Y.   +7 more
core   +2 more sources

Loss Analysis of Magnetic Gear with Slotted in Magnetic Modulation Ring

open access: yesCES Transactions on Electrical Machines and Systems, 2023
In order to improve the operation efficiency of coaxial magnetic gear (CMG), in this paper, a CMG model with slotted in magnetic modulation ring is proposed.
Can Tan   +4 more
doaj   +1 more source

Influence of lamination orientation and stacking on magnetic characteristics of grain-oriented silicon steel laminations [PDF]

open access: yes, 1984
Analytical and experimental investigations have been carried out upon the behaviour of flux in laminations, where the rolling directions of adjacent sheets are reversed.
Kawase, Y.   +3 more
core   +1 more source

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

Iron Losses Prediction with PWM Supply Using Low and High Frequency Measurements: Analysis and Results Comparison [PDF]

open access: yes, 2008
In this paper, two different methods for iron loss prediction are analyzed. The first method is based on the classical separation of loss contributions (hysteresis, eddy-current, and excess losses).
Gmyrek, Z.   +3 more
core   +1 more source

Holes in nanowires and quantum dots : spin qubits, majorana fermions, and hole and hyperfine interactions [PDF]

open access: yes, 2015
In the last decades much scientific effort was spent on manufacturing and understanding the properties of smaller and smaller condensed matter systems.
Maier, Franziska
core   +1 more source

Magnetic performance of synomag nanoparticles in various environments [PDF]

open access: yes, 2020
This work is an assessment of changes in magnetic properties of magnetic nanoparticles in various biological environments. To mimic variations in biological conditions, we have evaluated magnetic performance of Synomag® nanoparticles in two experiments ...
Riahi, Kalthoum   +5 more
core   +2 more sources

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