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Nonlinear Electrostatic Ion-Acoustic-Like Instabilities in a System with Two Streaming Ion Components Moving in a Background Plasma
(Bentham open, 2008-11-26)
Finite amplitude Alfvén-cyclotron waves are believed to play an important role in coronal heating and
nonthermal properties of velocity distribution functions. These effects are thought to be due to parametrically ...
Nonlinear ion-acoustic waves supported by an ion beam
(2007)
It is shown that in a plasma composed by electrons, a proton core, and a proton beam propagating along an external magnetic field, finite amplitude left-hand polarized waves propagating backward relative to the beam direction ...
Acoustoelectric drag current in vanadium oxide films
(American Physical Society, 2020)
Two different Mott insulator wires, vanadium dioxide and vanadium sesquioxide, were prepared on the piezoelectric LiNbO3 substrates. Coupling of acoustic waves propagating in LiNbO3 with free carriers in vanadium oxide ...
Nonlinear electrostatic instabilities in the solar wind
(Blackwell Publishing Ltd, 2009)
It is well known that nonlinear electrostatic instabilities can be triggered in a plasma with streaming ion species in the presence of finite-amplitude Alfvén cyclotron waves. The instability occurs when the phase velocity ...
Propagation of elastic waves through polycrystals: the effects of scattering from dislocation arrays
(ROYAL SOCIETY, 2006-09-08)
We address the problem of an elastic wave coherently propagating through a two-dimensional polycrystal. The main source of scattering is taken to be the interaction with grain boundaries that are in turn modelled as line ...
Modeling attenuation and dispersion of acoustic waves in porous media containing immiscible non viscous fluids
(Universidad Nacional de Colombia (Sede Medellín). Facultad de Minas., 2016-10-01)
This paper reports the results of the propagation of P-waves in porous media, simulated by solving the generalized Biot´s equations in finite differences. In saturated models, it was observed that when a wave advances, the ...
Parametric decays, stabilization effects, and electrostatic instabilities due to finite-amplitude Alfvén waves in a fast solar wind-like plasma
(Blackwell Publishing Ltd, 2007)
The effects of a finite-amplitude Alfvén wave in a plasma system with a proton and an alpha-particle beam, are studied. The system is described by a fourteenth-order polynomial providing, thereby, many decay channels for ...
Anomalous ISR echoes preceding auroral breakup: Evidence for strong Langmuir turbulence
(Blackwell, 2012)
Experimental results obtained with the 449-MHz Poker Flat Incoherent Scatter Radar (PFISR) show unusual features in both the ion line and plasma line measurements during an auroral breakup event. The features are a greatly ...
Heat transfer enhancement strategies in a swirl flow minichannel heat sink based on hydrodynamic receptivity
(Elsevier Ltd, 2018)
The swirl flow minichannel heat sink has shown to be a promising alternative for thermal management of
high heat flux applications, such as electronics and concentrated photovoltaics. Effective heat transfer
enhancement ...