Results 41 to 50 of about 584 (191)

Effect of Magnetic Islands on Neoclassical Heat Diffusivity in a Global Tokamak Simulation

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT Resonant magnetic perturbations (RMPs) alter magnetic field topology via island formation and can modify core transport in toroidal fusion devices. Using the global gyrokinetic particle‐in‐cell code XGC‐S, originally developed for stellarator geometries, we quantify how island topology affects neoclassical heat transport in a circular tokamak ...
Joseph X. Li   +5 more
wiley   +1 more source

The Coronal Plasma Density Structure over a Solar Cycle: A Comparison of Tomography and Magnetohydrodynamic Simulations

open access: yesThe Astrophysical Journal
The large-scale plasma density structure of the extended solar corona is a tracer of the underlying magnetic field configuration and dictates the structure of the solar wind in interplanetary space.
Liam T. Edwards   +3 more
doaj   +1 more source

Magnetic Electrocatalysts Enabling a High‐Rate Capability in Lithium‐Oxygen Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study introduces zinc ferrite (ZnFe2O4) nanoparticles with tunable magnetic properties as bifunctional electrocatalysts for lithium‐oxygen batteries. Under an applied magnetic field, these catalysts significantly enhance oxygen reduction and evolution reactions by promoting spin‐aligned charge transfer and ion diffusion. The approach achieves high
Yimin Chen   +7 more
wiley   +1 more source

Saturation of Ionospheric Currents under Extreme Environments

open access: yesThe Astrophysical Journal
Strong solar wind conditions can drive large electric potentials across planetary polar caps, but previous studies have shown that the cross polar cap potential reaches a saturation point during periods of high interplanetary magnetic field (IMF ...
Fatemeh Bagheri, Alex Glocer
doaj   +1 more source

Turbulent Magnetohydrodynamic Jet Collimation and Thermal Driving

open access: yes, 2003
To appear in proceedings of: 3-D Signatures in Stellar Explosions (A workshop honoring J. Craig Wheeler's 60th birthday, June 10-13, 2003, Austin, TX, USA)
openaire   +2 more sources

Magneto‐Electrochemical Effect on La‐Doped GaFeO3 as a Supercapacitor Electrode for Energy Storage

open access: yesElectron, EarlyView.
The electrochemical performance of La‐doped Gallium Ferrite (La‐doped GaFeO3 ${\text{GaFeO}}_{3}$) synthesizes via a conventional solid‐state reaction method; this has been studied by the application of an external magnetic fields. ABSTRACT The electrochemical performance of La‐doped GaFeO3 ${\text{GaFeO}}_{3}$ synthesizes via a conventional solid ...
Biswajit Sahoo   +5 more
wiley   +1 more source

Comment on “Magnetohydrodynamic simulations of direct current helicity injection for current drive in tokamaks’’ [Phys. Plasmas 3, 1038 (1996)] [PDF]

open access: yesPhysics of Plasmas, 1997
We disagree with the conclusions of the previous paper because reaching negative conclusions about helicity injection current drive for tokamaks based on magnetohydrodynamic simulation is unjustified. (AIP)
T. R. Jarboe, B. A. Nelson, U. Shumlak
openaire   +1 more source

Magneto‐Electrodeposition and Field‐Enhanced Ion Transport in Zn‐MnO2 Batteries

open access: yesSmall, EarlyView.
Magneto‐electrodeposition (MED) strategy to improve the deposition uniformity and subsequent performance of MnO2 cathodes for aqueous Zn‐MnO2 batteries. Internal magnetic fields operating during battery cycling stabilize Zn anode and promote enhanced ion transportation, leading to enhanced initial areal capacities.
Pedaballi Sireesha   +3 more
wiley   +1 more source

Faraday inductive breakdown: From spark plasma sintering to neuromorphic memristors

open access: yesMaterials & Design
The field-induced transition of metallic granular media from an insulating to a conductive state, known as the Branly effect, presents a quantified energy deficit.
Guy Antou
doaj   +1 more source

Investigation of the Evolution Mechanism and Multiphysics Coupling in Tree‐Contact Single‐Phase‐to‐Ground Fault

open access: yesHigh Voltage, EarlyView.
ABSTRACT Tree‐contact single‐phase‐to‐ground fault (TSF) is a common and hazardous type of failure in distribution networks. TSF is likely to occur when overhead conductors contact moist tree branches, potentially leading to insulation breakdown, posing serious threats to grid safety.
Wenjun Ning   +5 more
wiley   +1 more source

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