Results 1 to 10 of about 29,267 (259)

Large gradual solar energetic particle events [PDF]

open access: yesLiving Reviews in Solar Physics, 2016
Solar energetic particles, or SEPs, from suprathermal (few keV) up to relativistic ( $$\sim $$ ∼ few GeV) energies are accelerated near the Sun in at least two ways: (1) by magnetic reconnection-driven processes during solar flares resulting in impulsive
Mihir Desai, Joe Giacalone
doaj   +4 more sources

Nonlinear excitation of energetic particle driven geodesic acoustic mode by resonance overlap with Alfvén instability in ASDEX Upgrade [PDF]

open access: yesScientific Reports
The Alfvén instability nonlinearly excited the energetic-particle-driven geodesic acoustic mode on the ASDEX-Upgrade tokamak, as demonstrated experimentally.
Hao Wang   +8 more
doaj   +2 more sources

Energetic Particle Influence on the Earth’s Atmosphere [PDF]

open access: yesSpace Science Reviews, 2015
This manuscript gives an up-to-date and comprehensive overview of the effects of energetic particle precipitation (EPP) onto the whole atmosphere, from the lower thermosphere/mesosphere through the stratosphere and troposphere, to the surface. The paper summarizes the different sources and energies of particles, principally\ud galactic cosmic rays ...
Keri Nicoll   +2 more
exaly   +4 more sources

Application of CFD-DEM to the investigation of movement and distribution of energetic particle groups

open access: yesCase Studies in Thermal Engineering, 2023
The modular charge is a new charge technique for the gun. There are energetic particle groups and the combustion gas during the launch, forming a gas-solid flow. The distribution of particles plays a crucial role in the formation of pressure waves.
An Chen, Yonggang Yu
doaj   +3 more sources

Probing the energetic particle environment near the Sun [PDF]

open access: yesNature, 2019
Kelly Korreck   +2 more
exaly   +2 more sources

The Energetic Particle Detector [PDF]

open access: yesAstronomy & Astrophysics, 2020
After decades of observations of solar energetic particles from space-based observatories, relevant questions on particle injection, transport, and acceleration remain open. To address these scientific topics, accurate measurements of the particle properties in the inner heliosphere are needed. In this paper we describe the Energetic Particle Detector (
Rodriguez-Pacheco, J   +98 more
openaire   +6 more sources

Particle-based energetic variational inference [PDF]

open access: yesStatistics and Computing, 2021
We introduce a new variational inference (VI) framework, called energetic variational inference (EVI). It minimizes the VI objective function based on a prescribed energy-dissipation law. Using the EVI framework, we can derive many existing Particle-based Variational Inference (ParVI) methods, including the popular Stein Variational Gradient Descent ...
Yiwei Wang   +3 more
openaire   +3 more sources

Recent advances in high-βN experiments and magnetohydrodynamic instabilities with hybrid scenarios in the HL-2A Tokamak

open access: yesFundamental Research, 2022
Over the past several years, high-βN experiments have been carried out on HL-2A. The high-βN is realized using double transport barriers (DTBs) with hybrid scenarios.
Wei Chen   +28 more
doaj   +1 more source

Stopping to reflect: Asymptotic static moving mirrors as quantum analogs of classical radiation

open access: yesPhysics Letters B, 2023
Radiation from an accelerating charge is a basic process that can serve as an intersection between classical and quantum physics. We present two exactly soluble electron trajectories that permit analysis of the radiation emitted, exploring its time ...
Michael R.R. Good, Eric V. Linder
doaj   +1 more source

Sources of solar energetic particles [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2019
Solar energetic particles are an integral part of the physical processes related with space weather. We present a review for the acceleration mechanisms related to the explosive phenomena (flares and/or coronal mass ejections, CMEs) inside the solar corona.
Loukas Vlahos   +4 more
openaire   +3 more sources

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