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Filters: tag: Rotating Magnetic Field Clear

Impact of various electromagnetic fields on the transdermal permeability of naproxen and the effect of active compound exposure on magnetic field properties.

Research RF Safe Research Library Jan 1, 2025

This ex vivo study tested whether different magnetic-field modalities change transdermal delivery of naproxen through pigskin. Rotating magnetic fields (RMF) at 50 Hz produced the greatest increase in permeation metrics versus a no-EMF control, while negatively polarized static fields reduced permeation.…

Three-dimensional dynamics of a particle with a finite energy of magnetic anisotropy in a rotating magnetic field.

Research RF Safe Research Library Jan 1, 2013

This paper presents a theoretical model of a single ferromagnetic particle with finite coupling between its magnetic moment and particle body in a rotating magnetic field. It describes synchronous and asynchronous motion regimes, including planar motion at low frequencies and a precession regime at high frequencies,…

Spin current pumped by a rotating magnetic field in zigzag graphene nanoribbons.

Research RF Safe Research Library Jan 1, 2010

This theoretical study models electron spin resonance and spin/charge pumping in zigzag graphene nanoribbons driven by a transverse rotating magnetic field without applied bias. It reports that pumped spin current density increases with ribbon size and rotating-field intensity, and that even-chain ribbons can also…

Aggregation of magnetic holes in a rotating magnetic field.

Research RF Safe Research Library Jan 1, 2008

This laboratory study experimentally examined aggregation of nonmagnetic particles in a magnetic fluid layer under a rotating magnetic field. Particles formed two-dimensional clusters that repeatedly aggregated into larger clusters, producing a broad distribution of cluster sizes. The dynamics were described as…

Chaotic mixing induced by a magnetic chain in a rotating magnetic field.

Research RF Safe Research Library Jan 1, 2007

This paper studies chaotic mixing driven by breakup and reformation of a magnetic particle chain under a rotating magnetic field using direct numerical simulation. The authors report that chain motion and the degree of chaos depend strongly on the Mason number, and that a limited Mason number range produces repeated…

Polarization reversal in multiferroic TbMnO3 with a rotating magnetic field direction.

Research RF Safe Research Library Jan 1, 2007

This Physical Review Letters paper reports a method to reverse electric polarization in multiferroic TbMnO3 using a rotating magnetic-field direction, without applying an electric field or heat. The authors state that the direction of magnetic-field-induced polarization along the a axis is retained as a memory even…

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