Results 71 to 80 of about 451,786 (303)

Quantum Dynamics of a Nanomagnet driven by Spin-Polarized Current

, 2011
A quantum theory of magnetization dynamics of a nanomagnet as a sequence of scatterings of each electron spin with the macrospin state of the magnetization results in each encounter a probability distribution of the magnetization recoil state associated ...
H. J. Carmichael, H. M. Wiseman, H. Suhl, L. J. Sham, Yong Wang   +4 more
core   +1 more source

Small-scale magnetic buoyancy and magnetic pumping effects in a turbulent convection [PDF]

Geophys.Astrophys.Fluid Dynamics 100 (2006) 243-263, 2006
We determine the nonlinear drift velocities of the mean magnetic field and nonlinear turbulent magnetic diffusion in a turbulent convection. We show that the nonlinear drift velocities are caused by the three kinds of the inhomogeneities, i.e., inhomogeneous turbulence; the nonuniform fluid density and the nonuniform turbulent heat flux.
arxiv   +1 more source

The Magnetic pull

Nursing Management (Springhouse), 2003
Nursing Management profiles a number of hospitals that attained Magnet status from the American Nurses Credentialing Center.
openaire   +10 more sources

Magnetizing of permanent magnets using HTS bulk magnets

Cryogenics, 2011
A demagnetized Nd-Fe-B permanent magnet was scanned just above the magnetic pole containing the HTS bulk magnet, generating a magnetic field of 3.27 T. The magnet sample was subsequently found to be fully magnetized in the open space of the static magnetic fields.
Tomoki Muraya, Nobutaka Kawasaki, Toshihisa Terasawa, Jun Ogawa, Tetsuo Oka, Satoshi Fukui, Takao Sato   +6 more
openaire   +4 more sources

Magnetic field annihilators: invisible magnetization at the magnetic equator [PDF]

Geophysical Journal International, 2003
SUMMARY Some distributions of magnetization give rise to magnetic fields that vanish everywhere above the surface, rendering these distributions of magnetization completely invisible. They are the annihilators of the magnetic inverse problem. Known examples are the infinite sheet with constant magnetization and the spherical shell of constant ...
Maus, S., Haak, V.
openaire   +5 more sources

Very High‐Frequency Oscillations in Mesial Temporal Lobe Epilepsy: Identifying the Epileptogenic Zone

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To investigate the reliability of very high‐frequency oscillations (VHFOs, 500–2000 Hz) as biomarkers in identifying the epileptogenic zone (EZ) in mesial temporal lobe epilepsy (MTLE) patients. Methods We reviewed 19 MTLE patients who underwent stereo‐electroencephalography‐guided radiofrequency thermocoagulation.
Stéphane Jean, Yihai Dai, Yan Cui, Donghuo Deng, Zhe Qian, Panashe Tevin Tagu, Weitao Chen, Weihong Liu, Xiaoqiang Wei, Xinrong Fang, Shiwei Song   +10 more
wiley   +1 more source

Equivalent Electrical Model of an Inductor Excited by a Triangular Current Including Saturation

Communications, 2020
A model for an equivalent electrical circuit designed for a ferrite (3C90) inductor usually used in power converters excited by a non-sinusoidal current appropriate for use in power electronics is proposed. This study, based on 3D finite element analysis,
Jorge Rafael Gonzalez-Teodoro, Enrique Romero-Cadaval, Rafael Asensi, Vladimir Kindl   +3 more
doaj   +1 more source

Hysteresis in mesoscopic superconducting disks: the Bean-Livingston barrier

, 1998
The magnetization behavior of mesoscopic superconducting disks can show hysteretic behavior which we explain by using the Ginzburg-Landau (GL) theory and properly taking into account the de-magnetization effects due to geometrical form factors.
A. K. Geim, A. K. Geim, A. S. Joseph, C. P. Bean, D. J. Thompson, F. M. Peeters, F. M. Peeters, G. D. Cody, P. S. Deo, P. Singha Deo, R. W. Deblois, V. A. Schweigert, V. A. Schweigert, V. V. Moshchalkov   +13 more
core   +1 more source

Magnetic interactions in IV-VI diluted magnetic semiconductors [PDF]

Phys. Status Solidi B, 259, 2100592 (2022), 2023
Diluted magnetic semiconductors (DMS) are interesting because of the interplay between the electronic and magnetic subsystems. We describe selected magnetic properties of IV-VI diluted magnetic semiconductors, looking at the similarities and differences between magnetic properties of II-VI, IV-VI, and III-V DMS.
arxiv  

Photospheric magnetic structure of coronal holes [PDF]

Astronomy and Astrophysics 629, A22 (2019), 2019
In this study, we investigate in detail the photospheric magnetic structure of 98 coronal holes using line-of-sight magnetograms of SDO/HMI, and for a subset of 42 coronal holes using HINODE/SOT G-band filtergrams. We divided the magnetic field maps into magnetic elements and quiet coronal hole regions by applying a threshold at $\pm 25$ G.
arxiv   +1 more source