Results 61 to 70 of about 220,627 (193)

Ring Current Morphology From MMS Observations

open access: yesJournal of Geophysical Research: Space Physics, 2022
AbstractWe directly estimate the in situ current density of the Earth’s ring current (RC) using the curlometer method and investigate its morphology using the small spatial separations and high accuracy of the Magnetospheric Multiscale mission. Through statistical analysis of data from September 2015 to the end of 2016, covering the region of 2–8 RE ...
X. Tan   +7 more
openaire   +1 more source

Double-ring high-frequency common-mode switching oscillation current sensor for inverter-fed machine winding insulation monitoring

open access: yesGlobal Energy Interconnection
Insulation failure significantly contributes to the unpredictable shutdown of power equipment. Compared to the partial discharge and high-frequency (HF) injection methods, the HF common-mode (CM) leakage current method offers a non-intrusive and highly ...
Lingqing Pan   +5 more
doaj   +1 more source

Comparing magnetopause predictions from two MHD models during a geomagnetic storm and a quiet period

open access: yesFrontiers in Astronomy and Space Sciences, 2023
Magnetopause location is an important prediction of numerical simulations of the magnetosphere, yet the models can err, either under-predicting or over-predicting the motion of the boundary.
Pauline M. Dredger   +2 more
doaj   +1 more source

Enhanced Charge and Spin Currents in the One-Dimensional Disordered Mesoscopic Hubbard Ring

open access: yes, 1995
We consider a one-dimensional mesoscopic Hubbard ring with and without disorder and compute charge and spin stiffness as a measure of the permanent currents. For finite disorder we identify critical disorder strength beyond which the charge currents in a
A. A. Abrikosov   +26 more
core   +1 more source

Minigap, Parity Effect and Persistent Currents in SNS Nanorings [PDF]

open access: yes, 2006
We have evaluated a proximity-induced minigap in the density of states (DOS) of SNS junctions and SNS nanorings at an arbitrary concentration of non-magnetic impurities. We have demonstrated that an isotropic energy minigap in the electron spectrum opens
A. D. Zaikin   +11 more
core   +3 more sources

Persistent currents in Dirac fermion rings [PDF]

open access: yesPhysical Review B, 2013
18 pages, 14 ...
Sticlet, Doru   +2 more
openaire   +3 more sources

Influences of various space current systems on the geomagnetic field in near-Earth space

open access: yesEarth and Planetary Physics, 2023
Ground and space-based observations of the geomagnetic field are usually a superposition of different sources from the Earth’s core, lithosphere, ocean, ionosphere, and magnetosphere, and also from field-aligned currents coupling the ionosphere and ...
YaBing Wang   +8 more
doaj   +1 more source

Dynamics of automorphisms on compact K\"ahler manifolds [PDF]

open access: yes, 2010
We study holomorphic automorphisms on compact K\"ahler manifolds having simple actions on the Hodge cohomology ring. We show for such automorphisms that the main dynamical Green currents admit complex laminar structures (woven currents) and the Green ...
De Thélin, Henry, Dinh, Tien-Cuong
core  

Quantitative Analysis of the Impact of Various iCBCTs on the Image Quality of Lung Adaptive Radiotherapy

open access: yesZhongguo yiliao qixie zazhi
ObjectiveTo investigate the impact of different iterative cone beam CT (iCBCT) scanning beam currents from a ring-mounted linac on synthetic CT image quality for lung adaptive radiotherapy under lung scanning protocol. MethodsThe CIRS lung motion phantom
Ruifeng ZHAO, Bin SU, Xiaofei JIANG
doaj   +1 more source

Determination of vertical profiles of shell currents in the ionosphere [PDF]

open access: yesAnnales Geophysicae
In previous works, we found Euler potentials for the combined magnetic field of Earth's dipole, field-aligned currents, ring current, and the magnetopause surface currents (represented by Dungey's term) in the magnetosphere.
E. Romashets, M. Vandas
doaj   +1 more source

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