Results 121 to 130 of about 1,092,232 (226)

Rapid arc extinguishing of a double-ended electromagnetic air-blast segmented arc-extinguishing device

open access: yes电力工程技术
To address the issue of decreased reliability in power transmission caused by the incapability of existing parallel protection gaps to actively extinguish arcs,a method utilizing the power-flow current flowing through coil to generate a magnetic field ...
Xiong LI   +5 more
doaj   +1 more source

Research Progress and Prospects on Pantograph-Catenary Arcing in Urban Rail Transit

open access: yesChengshi guidao jiaotong yanjiu
[Objective] Pantograph-catenary (PC) arcing degrades the train current collection quality, causes ablation of pantograph carbon strips and contact wires, and consequently affects safety and stability of train operation.
ZHANG Yuhang   +3 more
doaj   +1 more source

The role of quantum computing in advancing plasma physics simulations for fusion energy and high-energy

open access: yesFrontiers in Physics
Its complexity constrains advancements in fusion energy and high energy applications driven by plasma physics, multiscale phenomena beyond classical computing limits. These transformative solutions, especially in plasma simulations, for which exponential
Yifei Yang
doaj   +1 more source

How Does the Critical Torus Instability Height Vary with the Solar Cycle?

open access: yesThe Astrophysical Journal
The ideal magnetohydrodynamic torus instability can drive the eruption of coronal mass ejections. The critical threshold of magnetic field strength decay for the onset of the torus instability occurs at different heights in different solar active regions,
Alexander W. James   +4 more
doaj   +1 more source

Solar Eruptions Triggered by Flux Emergence below or near a Coronal Flux Rope

open access: yesThe Astrophysical Journal
Observations have shown a clear association of filament/prominence eruptions with the emergence of magnetic flux in or near filament channels. Magnetohydrodynamic (MHD) simulations have been employed to systematically study the conditions under which ...
T. Török   +6 more
doaj   +1 more source

The Importance of Ambipolar Heating in the Standard Thin Accretion Disk with Outflows

open access: yesThe Astrophysical Journal
This study examines the importance of the thermal effects of ambipolar diffusion (AD), by analyzing the governing properties in the middle and outer regions of a standard thin accretion disk with outflows.
Mahmoud Gholipour   +1 more
doaj   +1 more source

Simulation of β-induced Alfvén eigenmode instabilities and mode transition for HL-3 hybrid scenario

open access: yesNuclear Fusion
A kinetic-magnetohydrodynamic hybrid simulation is performed to investigate the Alfvén eigenmode (AE) and fishbone (FB)/FB-like (FBL) instabilities excited by neutral beam injection (NBI)-deposited energetic particles (EPs) in an HL-3 hybrid scenario ...
Yunpeng Zou   +7 more
doaj   +1 more source

Spectropolarimetric Inversion in Four Dimensions with Deep Learning (SPIn4D). II. A Physics-informed Machine Learning Method for 3D Solar Photosphere Reconstruction

open access: yesThe Astrophysical Journal
Inferring the three-dimensional (3D) solar atmospheric structures from observations is a critical task for advancing our understanding of the magnetic-fields and electric currents that drive solar activity.
Kai E. Yang   +11 more
doaj   +1 more source

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