Results 41 to 50 of about 42,541 (164)

ULF waves with drift resonance and drift-bounce resonance energy sources as observed in artificially-induced HF radar backscatter [PDF]

open access: yesAnnales Geophysicae, 2001
HF radar backscatter which has been artificially-induced by a high power RF facility such as the EISCAT heater at Tromsø has been demonstrated to provide ionospheric electric field data of unprecedented temporal resolution and accuracy. Here such data
T. K. Yeoman, T. K. Yeoman, D. M. Wright
doaj   +1 more source

Interaction of Submerged Breakwater by a Solitary Wave Using WC-SPH Method

open access: yesModelling and Simulation in Engineering, 2014
Interaction of a solitary wave and submerged breakwater is studied in a meshless, Lagrangian approach. For this purpose, a two-dimensional smoothed particle hydrodynamics (SPH) code is developed. Furthermore, an extensive set of simulations is conducted.
Afshin Mansouri, Babak Aminnejad
doaj   +1 more source

Data processing in Software-type Wave–Particle Interaction Analyzer onboard the Arase satellite

open access: yesEarth, Planets and Space, 2018
The software-type wave–particle interaction analyzer (S-WPIA) is an instrument package onboard the Arase satellite, which studies the magnetosphere. The S-WPIA represents a new method for directly observing wave–particle interactions onboard a spacecraft
Mitsuru Hikishima   +13 more
doaj   +1 more source

Nonlinear wave growth theory of whistler-mode chorus and hiss emissions in the magnetosphere

open access: yesEarth, Planets and Space, 2021
Nonlinear processes associated with the generation process of whistler-mode chorus emissions are summarized. The nonlinear dynamics of energetic electrons interacting with a coherent whistler-mode wave and the formation of electromagnetic electron holes ...
Yoshiharu Omura
doaj   +1 more source

On the nature of particle energization via resonant wave-particle interaction in the inhomogeneous magnetospheric plasma [PDF]

open access: yesAnnales Geophysicae, 2011
When a quasi-monochromatic wave propagating in an inhomogeneous magnetoplasma has sufficiently large amplitude, there exist phase-trapped resonant particles whose energy increases or decreases depending on the "sign" of inhomogeneity.
D. R. Shklyar, D. R. Shklyar
doaj   +1 more source

Locally Generated Whistler-Mode Waves Before Dipolarization Fronts

open access: yesUniverse
Whistler-mode waves, electromagnetic emissions with frequencies between the lower hybrid and electron cyclotron frequencies, are ubiquitous in planetary magnetotails.
Boning Zhao   +4 more
doaj   +1 more source

A Nonlinear Schrödinger Model for Many-Particle Quantum Systems

open access: yesJournal of Applied Mathematics, 2012
Considering both effects of the s-wave scattering and the atom-atom interaction rather than only the effect of the s-wave scattering, we establish a nonlinear Schrödinger model for many-particle quantum systems and we prove the global existence of a ...
Qiang Zhang, Tian Ma
doaj   +1 more source

High-altitude and high-latitude O+ and H+ outflows: the effect of finite electromagnetic turbulence wavelength [PDF]

open access: yesAnnales Geophysicae, 2007
The energization of ions, due to interaction with electromagnetic turbulence (i.e. wave-particle interactions), has an important influence on H+ and O+ ions outflows in the polar region.
I. A. Barghouthi   +4 more
doaj   +1 more source

Behaviors of Sediment Particles During Erosion Driven by Turbulent Wave Action

open access: yesGeoHazards
Sediment erosion under turbulent wave action is a highly dynamic process shaped by the interaction between wave properties and sediment characteristics.
Fei Wang, Jun Xu, Bryce Vaughan
doaj   +1 more source

Alpha particle transport induced by TAE in CFETR steady-state scenario

open access: yesNuclear Fusion
In fusion plasmas, α particles are crucial for achieving self-sustained burning conditions. However, toroidal Alfvén eigenmodes (TAE) can induce radial transport of α particles, causing energy loss and potentially quenching the plasma discharge.
Jia-Bin Wan   +5 more
doaj   +1 more source

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