scholarly journals Weyl Anomaly and Vacuum Magnetization Current of M5‐brane in Background Flux

2019 ◽  
Vol 67 (8-9) ◽  
pp. 1910005 ◽  
Author(s):  
Chong‐Sun Chu
Keyword(s):  
Magnetization Current

scholarly journals INFLUENCE OF CHARACTERISTICS OF A NONLINEAR TRANSFORMER TO WORK THE INVERTER

2020 ◽  
pp. 46-57
Author(s):  
Konstantin V. Bykov ◽  
Nadezhda M. Lazareva ◽  
Viktor M. Yarov
Keyword(s):  
Hysteresis Loop ◽  
Simulation Modeling ◽  
Initial Phase ◽  
Gradual Increase ◽  
Statistical Characteristics ◽  
Matlab Simulation ◽  
Soft Start ◽  
Magnetization Current ◽  
Primary Current ◽  
Modulation Voltage

The article deals with the modes of switching on an inverter with a sinusoidal output voltage when working with a nonlinear transformer. The study is implemented by simulation modeling in Simulink Matlab. Simulation is carried out using the SPS model of a nonlinear transformer with various core magnetization curves. It is shown that a soft start of the inverter, performed by a gradual increase in the sinusoidal modulating voltage, eliminates in-rushes of the primary current and the magnetization current, regardless of the modulation voltage switching angle. The process of forming a hysteresis loop for a given magnetic flux is considered. The time diagrams of the direct starting-up the converter are given at various values of the modulation voltage initial phase for a core with a hysteresis loop. It is shown that the statistical characteristics of the inverter do not depend on the type of the transformer’s core magnetization curve.

Effect of collisions on the magnetization current in a plasma

1993 ◽  
Vol 50 (2) ◽  
pp. 325-330 ◽  
Author(s):  
G. Brodin ◽  
L. Stenflo
Keyword(s):  
Kinetic Theory ◽  
High Frequency ◽  
Electromagnetic Waves ◽  
Collision Frequency ◽  
Generation Mechanism ◽  
Collision Term ◽  
Velocity Dependence ◽  
Magnetization Current ◽  
Nonlinear Magnetization

The generation of a quasi-stationary nonlinear magnetization current in a plasma in the presence of high-frequency electromagnetic waves is considered. A kinetic theory is developed that takes the velocity dependence of the collision frequency into account. The results show that even a small collision term can have a significant effect on the generation mechanism.

scholarly journals Analysis Magnetization Current of Harmonic Phenomena and Power Factor as Indicators of Core Saturation at Transformer 3-Phase

2016 ◽  
Vol 04 (05) ◽  
pp. 1-6
Author(s):  
Erwin Dermawan ◽  
Deni Almanda ◽  
Laelatus Zahro ◽  
Anwar Ilmar Ramadhan ◽  
Ery Diniardi
Keyword(s):  
Power Factor ◽  
Core Saturation ◽  
Magnetization Current

A wall-thinning measuring method based on magnetic permeability perturbation

2020 ◽  
Vol 64 (1-4) ◽  
pp. 921-930
Author(s):  
Zhiyang Deng ◽  
Shilin Wei ◽  
Tao Chen ◽  
Xiaochun Song ◽  
Yihua Kang
Keyword(s):  
Magnetic Permeability ◽  
Signal Amplitude ◽  
Ferromagnetic Material ◽  
Measuring Method ◽  
New Method ◽  
Steel Pipes ◽  
Wall Thinning ◽  
Metal Thickness ◽  
Magnetization Current

In the determination of metal thickness by traditional electromagnetic nondestructive testing methods, the material’s electrical conductivity and magnetic permeability are required but practically unavailable or inexact. In this paper, a wall-thinning measuring method based on magnetic permeability variation of steel pipes is proposed. The direct current magnetization is applied to the ferromagnetic material, the internal magnetic field perturbation caused by the wall-thinning brings the permeability perturbation in the surface layer and be sensed by eddy current probe. The simulation results show that the permeability perturbation is closely related to wall thickness loss. The experiment results show that the signal amplitude increases with the thickness of the wall-thinning and the new method can measure the 10% wall-thinning of pipe. Finally, theoretical range of magnetization current values are discussed. The new method takes advantage of the changes in permeability and is not limited by thickness of object to be detected.

The ground-state entanglement in the spin- XX chain with a magnetization current

2010 ◽  
Vol 19 (11) ◽  
pp. 110308
Author(s):  
Yong Zhang ◽  
Chuan Wang ◽  
Guang-Sheng Jin
Keyword(s):  
Ground State ◽  
Magnetization Current
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