Results 41 to 50 of about 5,159,006 (358)

Scattering of radio frequency waves by randomly modulated density interfaces in the edge of fusion plasmas

open access: yes, 2021
Submitted for publication in Journal of Plasma PhysicsIn the scrape-off layer and the edge region of a tokamak, the plasma is strongly turbulent and scatters the radio frequency (RF) electromagnetic waves that propagate through this region.
Papadopoulos, A.D.   +3 more
core   +1 more source

Overview of APEX Project Results

open access: yesFrontiers in Astronomy and Space Sciences, 2018
The APEX mother-daughter project (Active Plasma EXperiments) was launched into an elliptical polar orbit (440–3,080 km) in December 1991. It consisted of the main Russian Interkosmos–25 (IK–25) satellite and the Czech MAGION–3 subsatellite, both with ...
Lubomir Prech   +4 more
doaj   +1 more source

The Role of Core and Strahlo Electrons Properties on the Whistler Heat-Flux Instability Thresholds in the Solar Wind

open access: yesFrontiers in Physics, 2022
There is wide observational evidence that electron velocity distribution functions (eVDF) observed in the solar wind generally present enhanced tails and field-aligned skewness.
Bea Zenteno-Quinteros, Pablo S. Moya
doaj   +1 more source

Highly Sensitive and Wide-Band Tunable Terahertz Response of Plasma Waves Based on Graphene Field Effect Transistors

open access: yesScientific Reports, 2014
Terahertz (THz) technology is becoming a spotlight of scientific interest due to its promising myriad applications including imaging, spectroscopy, industry control and communication.
Lin Wang   +5 more
semanticscholar   +1 more source

Nonlinear magnetoacoustic waves in a cold plasma [PDF]

open access: yes, 2007
The equations describing planar magnetoacoustic waves of permanent form in a cold plasma are rewritten so as to highlight the presence of a naturally small parameter equal to the ratio of the electron and ion masses.
Allen, M. A., Rowlands, G. (George)
core   +1 more source

Magnetospheric Plasma Systems Science and Solar Wind Plasma Systems Science: The Plasma-Wave Interactions of Multiple Particle Populations

open access: yesFrontiers in Astronomy and Space Sciences, 2021
Building upon the research legacies of Peter Gary and Richard Thorne, this perspective discusses a plasma-system picture wherein multiple ion and electron populations interact with each other via multiple types of plasma waves.
Joseph E. Borovsky
doaj   +1 more source

Approximation of radial structure of unstable ion-sound modes in rotating magnetized plasma column by eikonal equation

open access: yesDiscrete and Continuous Models and Applied Computational Science, 2022
The problem of the correct asymptotic construction of the radial structure of linearly unstable ion-sound electrostatic eigenmodes is studied. The eigenvalue problem with boundary conditions of the first and second kind (electrodynamic and hydrodynamic ...
Nikita A. Marusov
doaj   +1 more source

Laser-driven plasma waves in capillary tubes. [PDF]

open access: yesPhysical review. E, Statistical, nonlinear, and soft matter physics, 2009
The excitation of plasma waves over a length of up to 8 cm is demonstrated using laser guiding of intense laser pulses through hydrogen-filled glass capillary tubes.
F. Wojda   +13 more
semanticscholar   +1 more source

Probing the relationship between electromagnetic ion cyclotron waves and plasmaspheric plumes near geosynchronous orbit [PDF]

open access: yes, 2010
Plasmaspheric plumes created during disturbed geomagnetic conditions have been suggested as a major cause of increased occurrences of electromagnetic ion cyclotron (EMIC) waves at these times.
R. B. Horne   +11 more
core   +1 more source

A Prospective Study of Individuals at Risk of Multiple Sclerosis Informs the Design of Primary Prevention Studies

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective In multiple sclerosis, the optimal time for deploying a therapeutic intervention is before the central nervous system is damaged; given the success of trials treating the earliest stage of MS, the radiologically isolated syndrome, developing primary prevention strategies is an important next challenge.
Amy W. Laitinen   +7 more
wiley   +1 more source

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