Results 191 to 200 of about 2,643 (218)

Oscillation center quasilinear theory

The Physics of Fluids, 1973
A new formulation of the quasilinear theory of weakly turbulent plasmas is presented, which explicitly separates resonant and nonresonant wave-particle interactions from the outset. This is achieved by making a canonical transformation to “oscillation center variables” before attempting to solve the Vlasov equation.
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Limitations of quasilinear transport theory

Physics of Fluids B: Plasma Physics, 1992
The anomalous fluxes are evaluated in the simplest possible geometric situation: drift waves in a shearless slab geometry, in the presence of density and temperature gradients. It is shown that, within the strict quasilinear framework, the linear transport equations relating the fluxes to the thermodynamic forces have serious limitations. Such a linear
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Star-quasilinear equational theories of groupoids

Studia Scientiarum Mathematicarum Hungarica, 2010
We investigate equational theories E of groupoids with the property that every term is E -equivalent to at least one linear term.
Petar Đapć, Jaroslav Ježek, Petar Marković   +2 more
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Quasilinear Theory of the Mirror Flute Instability

The Physics of Fluids, 1972
The nonlinear small-amplitude behavior of a collisionless plasma is studied at the mirror flute instability threshold. A treatment assuming a “constant gravity” model of the mirror field predicts saturation of the m = 1 mode amplitude in disagreement with experiment.
Albert Simon, C. I. Weng
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Quasilinear Theory of Hydromagnetic Waves in Collisionless Plasma

The Physics of Fluids, 1968
A quasilinear theory of hydromagnetic waves in nonrelativistic collisionless plasma (with no superthermal “tail”) is derived. It is shown that the time evolution of the space-averaged velocity distribution function of each species is described by a diffusion equation in velocity space, and that this “diffusion” can be split into resonant and ...
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Quasilinear theory of auroral electrojet irregularities

Radiophysics and Quantum Electronics, 1986
It is shown that the effective collision frequency of electrons increases as a result of the development of instability in a plasma. This leads to stabilization of the instability and formation of a quasistationary state. The characteristic features of this quasistationary state can be detected in the experimental data of auroral scattering of radio ...
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Quasilinear theory and weak turbulence

2016
Abstract This chapter examines nonlinear dynamics in plasmas. It covers the important quasilinear (QL) theory of plasma dynamics, not only as it was originally intended to describe the evolution of linear instabilities into their nonlinear regime, but also as more recently developed for the successful study of current drive and/or ...
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Reconsideration of Quasilinear Theory

Physical Review Letters, 1979
J. C. Adam, G. Laval, D. Pesme
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Dissipative Quasilinear Theory of an Electromagnetic Wave

AIP Conference Proceedings, 1992
The quasilinear modification of the electron distribution, induced by the resonant absorption of a high‐frequency wave packet, is discussed taking into account the finite wave damping. Dissipation of the wave energy results in non‐homogeneous radiation pressure on the plasma, and introduces into the quasilinear equation terms proportional to the ...
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Some problems in the theory of quasilinear equations

1963
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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