Enhanced electrical performance of spring-supported magneto piezoelectric harvester to achieve 60 Hz under AC magnetic field

The resistance of Al-21%Cu alloy under no magnetic field, DC magnetic field and AC magnetic field from liquid to solid was measured by a four-probe method. The difference of resistance versus temperature curves (R-T curves) was analyzed. It is found that the R-T curves of Al-21%Cu alloy are monotone decreasing and have two obvious turning points. Under DC magnetic field, the liquidus and solidus temperatures of the alloy both decrease, while under AC magnetic field, the liquidus and solidus temperatures both increase. There is a good agreement between the microstructure of quenching sample and R-T curves. The mechanism of the effect of magnetic fields was discussed.

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Vibrational motion of a vortex lattice induced near the surface of a type-II superconductor by an external low-frequency ac magnetic field

Physical Review B ◽

10.1103/physrevb.103.064509 ◽

2021 ◽

Vol 103 (6) ◽

Author(s):

K. S. Pigalskiy

Keyword(s):

Magnetic Field ◽

Vortex Lattice ◽

Low Frequency ◽

Type Ii ◽

Vibrational Motion ◽

Ac Magnetic Field ◽

Type Ii Superconductor

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AC-magnetic field controlled drug release from magnetoliposomes: design of a method for site-specific chemotherapy

Bioelectrochemistry ◽

10.1016/s1567-5394(01)00171-2 ◽

2002 ◽

Vol 55 (1-2) ◽

pp. 17-19 ◽

Cited By ~ 123

Author(s):

M Babincová ◽

P Čičmanec ◽

V Altanerová ◽

Č Altaner ◽

P Babinec

Keyword(s):

Magnetic Field ◽

Drug Release ◽

Controlled Drug Release ◽

Site Specific ◽

Ac Magnetic Field

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On the in Vitro Hyperthermia of Magnetic Fluid in AC Magnetic Field

ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer, Volume 3 ◽

10.1115/mnhmt2009-18547 ◽

2009 ◽

Author(s):

Junfeng Jiang ◽

Ruoyu Hong ◽

Xiaohui Zhang ◽

Hongzhong Li

Keyword(s):

Magnetic Field ◽

Magnetic Fluid ◽

Volume Fraction ◽

Maximum Temperature ◽

Magnetic Fluid Hyperthermia ◽

Ac Magnetic Field ◽

Hyperthermia Therapy ◽

Good Biocompatibility ◽

High Chemical Stability

Hyperthermia therapy for cancer has attracted much attention nowadays. The study on the heat transfer in the magnetic fluid and the tumor is crucial for the successful application of magnetic fluid hyperthermia (MFH). Water-based Fe3O4 magnetic fluid is expected to be a most appropriate candidate for MFH due to the good biocompatibility, high saturation magnetization, super-paramagnetization and high chemical stability. In this paper, we explore the heat generation and transfer in magnetic fluid which is placed under an AC magnetic field. It is found that the amplitude and the frequency of alternating magnetic field, particle size and volume fraction have a pronounce influence on maximum temperature of hyperthermia.

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