Results 31 to 40 of about 31,737 (275)

OPTIMIZATION OF TIMES OF MAGNETIZATION AND DEMAGNETIZATION OF A STOPPED FREQUENCY-REGULATED ASYNCHRONOUS MOTOR

open access: yesElektrotehnìka ta Elektroenergetika, 2018
Purpose. Obtaining analytical dependencies for calculating the extreme (minimum) values of the main electrical energy losses of a three-phase short-circuited asynchronous engine in the regimes of its magnetization and demagnetization and determining the ...
V.A. Volkov
doaj   +1 more source

On pressure demagnetization

open access: yesGeophysical Research Letters, 1981
The effects of pressure on the ramanent magnetization of rocks may well be important in regions of low geothermal gradients, for example subduction zones, or at localities where a magnetization is associated with a meteorite impact. In a series of experiments undertaken to determine the effects of hydrostatic pressure on the saturation magnetic ...
G. W. Pearce, J. A. Karson
openaire   +1 more source

Optimal Design of Spoke-Type IPM Motor Allowing Irreversible Demagnetization to Minimize PM Weight

open access: yesIEEE Access, 2021
In this study, we introduce an optimal design for a spoke-type interior permanent magnet (IPM) motor that can minimize PM weight by allowing irreversible demagnetization, unlike the conventional motor design method that does not allow irreversible ...
Keun-Young Yoon, Kyu-Yun Hwang
doaj   +1 more source

Magnetic Force Microscopy Signatures of Higher‐Order Skyrmions and Antiskyrmions

open access: yesAdvanced Functional Materials, EarlyView.
Magnetic force microscopy operated under vacuum conditions enables the qualitative identification of higher‐order skyrmions and antiskyrmions in Co/Ni multilayers at room temperature. Distinct stray‐field contrast signatures arise from vertical Bloch lines and complex domain‐wall configurations.
Sabri Koraltan   +8 more
wiley   +1 more source

Experimental Study on Magnetization and Demagnetization Characteristics of X70 Steel Pipe

open access: yesShiyou jixie, 2022
The remanence in the pipe not only affects the detection accuracy, but also accelerates the corrosion rate in the pipe. In order to study the magnetization and demagnetization characteristics of X70 steel pipe, based on the analysis of material ...
Song Fulin, Zhao Hong
doaj  

Behavior of Greigite‐Bearing Marine Sediments During AF and Thermal Demagnetization and Its Significance

open access: yesGeochemistry, Geophysics, Geosystems, 2020
Gyro‐remanent magnetization (GRM) is a frequently occurring yet unwanted remanence contamination for certain samples during alternating field (AF) demagnetization of the natural remanent magnetization.
Zongqi Duan   +4 more
doaj   +1 more source

Demagnetization Effect in a Meander-Core Orthogonal Fluxgate Sensor

open access: yesMicromachines, 2021
Demagnetization effect plays an important role in the magnetic core design of the orthogonal fluxgate sensor. In this paper, a meander-core orthogonal fluxgate sensor based on amorphous ribbon is described.
Shaotao Zhi   +6 more
doaj   +1 more source

Self‐Cooling Molecular Spin Qudits

open access: yesAdvanced Materials, EarlyView.
A material made of [GdEr] molecular dimers can encode a qudit and perform as a magnetic refrigerant. Microwave resonant pulses coherently manipulate its 16 spin states, while direct demagnetization measurements cool the material and a device down to temperatures below 1 K.
Elías Palacios   +12 more
wiley   +1 more source

Damagnetization cooling of a gas

open access: yes, 2006
We demonstrate demagnetization cooling of a gas of ultracold $^{52}$Cr atoms. Demagnetization is driven by inelastic dipolar collisions which couple the motional degrees of freedom to the spin degree.
A Griesmaier   +31 more
core   +1 more source

Super-heavy fermion material as metallic refrigerant for adiabatic demagnetization cooling [PDF]

open access: yes, 2012
Low-temperature refrigeration is of crucial importance in fundamental research of condensed matter physics, as the investigations of fascinating quantum phenomena, such as superconductivity, superfluidity and quantum criticality, often require ...
Abascal   +539 more
core   +4 more sources

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