Results 31 to 40 of about 5,148,143 (269)

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

Conditional wave theory of environmental interactions with a quantum particle

open access: yesPhysical Review Research, 2020
We present an alternative formulation of quantum decoherence theory using conditional wave theory (CWT), which was originally developed in molecular physics (also known as exact factorization methods). We formulate a CWT of a classic model of collisional
Rory van Geleuken, Andrew V. Martin
doaj   +1 more source

Two types of ELF hiss observed at Varanasi, India [PDF]

open access: yesAnnales Geophysicae, 1999
The morphology of ELF hiss events observed at low-latitude ground station Varanasi (L = 1.07, geomagnetic latitude 14°55'N) are reported, which consist of two types: (1) events which propagated in ducted mode along the geomagnetic field line ...
D. K. Singh   +5 more
doaj   +1 more source

Using MEPED observations to infer plasma density and chorus intensity in the radiation belts

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Efforts to model and predict energetic electron fluxes in the radiation belts are highly sensitive to local wave-particle interactions. In this study, we use multi-point measurements of precipitating and trapped electron fluxes to investigate the dynamic
William J. Longley   +7 more
doaj   +1 more source

Article: Heating of beam ions by ion acoustic waves [PDF]

open access: yesAnnales Geophysicae, 1998
Satellite measurements show that ion beams above the auroral acceleration region are heated to hundreds of eV in a direction perpendicular to the magnetic field. We show that ion acoustic waves may be responsible for much of this heating.
A. Vaivads   +3 more
doaj   +1 more source

Temporal variability of quasi-linear pitch-angle diffusion

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Kinetic wave-particle interactions in Earth’s outer radiation belt energize and scatter high-energy electrons, playing an important role in the dynamic variation of the extent and intensity of the outer belt.
Clare E. J. Watt   +14 more
doaj   +1 more source

Direct observation of a “devil’s staircase” in wave-particle interaction [PDF]

open access: yesChaos: An Interdisciplinary Journal of Nonlinear Science, 2006
We report the experimental observation of a “devil’s staircase” in a time-dependent system considered as a paradigm for the transition to large-scale chaos in the universality class of Hamiltonian systems. A test electron beam is used to observe its non-self-consistent interaction with externally excited wave(s) in a traveling wave tube (TWT).
Doveil, Fabrice   +2 more
openaire   +4 more sources

A new instrument for the study of wave-particle interactions in space: One-chip Wave-Particle Interaction Analyzer [PDF]

open access: yesEarth, Planets and Space, 2009
Abstract Wave-particle interactions in a collisionless plasma have been analyzed in several past space science missions but direct and quantitative measurement of the interactions has not been conducted. We here introduce the Wave-Particle Interaction Analyzer (WPIA) to observe wave-particle interactions directly by calculating the inner ...
Fukuhara, Hajime   +5 more
openaire   +1 more source

2010 Annual Report

open access: yes
Oregon Wave Energy Trust (OWET) is a nonprofit public-private partnership funded by the Oregon Innovation Council. Its mission is to support the responsible development of wave energy in Oregon. OWET emphasizes an inclusive, collaborative model to ensure
Oregon Wave Energy Trust
core   +6 more sources

Landau Damping of Langmuir Waves: An Alternative Derivation

open access: yesPhysics, 2021
In this paper, a discussion of the Landau damping of Langmuir waves is presented together with a simple derivation which does not require the application of methods of complex analysis.
Andreas Shalchi
doaj   +1 more source

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