Demagnetization Treatment of Remanent Composite Microspheres Studied by Alternating Current Susceptibility Measurements
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Demagnetization Treatment of Remanent Composite Microspheres Studied by Alternating Current Susceptibility Measurements
The magnetic remanence of silica microspheres with a low concentration of embedded cobalt ferrite nanoparticles is studied after demagnetization and remagnetization treatments. When the microspheres are dispersed in a liquid, alternating current (AC) magnetic susceptibility spectra reveal a constant characteristic frequency, corresponding to the rotational diffusion of the microparticles; this ...
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We report on experimental studies focusing on the dynamic ac magnetic susceptibility of a ferronematic. It has been shown recently, that in the isotropic phase of a ferronematic, a weak dc bias magnetic field of a few oersteds increases the ac magnetic susceptibility. This increment vanishes irreversibly if the substance is cooled down to the nematic phase, but can be reinduced by applying the ...
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Improvement of Power System Condition by Placement of Flexible Alternating Current Transmission Systems devices
Flexible Alternating Current Transmission Systems (FACTS) devices have been used for several targets in power system, one of the main contributions of the devices is improving operation conditions. In this paper, two types of these devices have been placed to raise voltage profile, minimizing system loss and arising loadability. The suggested FACTS devices are: Unified Power Flow Controller (UP...
متن کاملImprovement of Power System Condition by Placement of Flexible Alternating Current Transmission Systems devices
Flexible Alternating Current Transmission Systems (FACTS) devices have been used for several targets in power system, one of the main contributions of the devices is improving operation conditions. In this paper, two types of these devices have been placed to raise voltage profile, minimizing system loss and arising loadability. The suggested FACTS devices are: Unified Power Flow Controller (UP...
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ژورنال
عنوان ژورنال: International Journal of Molecular Sciences
سال: 2013
ISSN: 1422-0067
DOI: 10.3390/ijms140918093