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  • Electronic Resource  (27)
  • 1990-1994  (27)
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  • Electronic Resource  (27)
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  • 1
    Electronic Resource
    Electronic Resource
    Formation of vortex chains in a nonuniform magnetized electron plasma (1994)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 1 (1994), S. 3505-3507 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: It is shown that the equations governing the dynamics of weakly interacting medium-frequency electrostatic waves in a nonuniform magnetoplasma with a fixed ion background can have localized vortex chain solutions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.870927
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Damping and absorption of high-frequency waves in dusty plasmas (1994)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 1 (1994), S. 236-244 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: By employing standard statistical techniques of linear fluctuation theory, it is shown how the ensemble averages over statistical distributions of charged massive grains in a dusty plasma can result in "average'' dispersion relations for high-frequency electromagnetic and electrostatic waves. The dispersion relations admit solutions for complex frequencies and wave numbers, suggesting that the waves can be damped (Im ω≠0) or absorbed (Im k≠0) in a dusty plasma.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.870826
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Shielding of a slowly moving test charge in dusty plasmas (1994)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 1 (1994), S. 1362-1363 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The far-field potential of a slowly moving test charge in dusty plasmas is calculated accounting for the dust grain charge fluctuations. It is found that the latter cause a damping, which in turn gives rise to a dipole-like far-field potential. The presence of the dipole-like potential is attributed to the dust grain charge perturbations caused by the oscillating electron and ion currents induced by the motion of a test charge.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.870736
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Excitation of plasma waves by electromagnetic waves in magnetized plasmas (1993)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 5 (1993), S. 3088-3091 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Three-dimensional equations for the plasma wake fields in the presence of a single frequency, intense circularly polarized electromagnetic (CPEM) wave in a two-component magnetoplasma are derived. For a given CPEM envelope, the axial electric fields of plasma waves are obtained for a one-dimensional model problem in which all the waves are aligned along the magnetic-field lines. It is found that the presence of an external magnetic field can significantly enhance the strength of the plasma wake fields when the right-hand CPEM wave is used for the excitation purposes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.860640
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Short-wavelength electromagnetic fluctuations and anomalous electron energy transport in collisional tokamak edges (1992)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 4 (1992), S. 86-90 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: It is shown that free energy stored in the equilibrium electron density and temperature gradients can drive short-wavelength electromagnetic fluctuations in collisional plasmas embedded in a homogeneous magnetic field. The enhanced electromagnetic fluctuations can cause anomalous cross-field electron energy transport. The present investigation can have relevance to short scale electric and magnetic field fluctuations, as well as anomalous thermal conduction in tokamak edges.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.860408
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Magnetic electron drift vortex mode instability in a cylindrical plasma (1990)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 2 (1990), S. 1083-1084 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: An equation describing the propagation and instability behavior of magnetic electron drift vortex modes in a cylindrically symmetric rotating plasma is derived without using the local approximation. The effects of equilibrium density, velocity, and temperature, as well as magnetic field gradients, are included. An approximate analytical solution for modes near the center of the plasma is obtained.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.859281
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Stimulated scattering instabilities of electromagnetic waves in collisional plasmas (1993)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 5 (1993), S. 4253-4255 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The effects of nonlocal heat transport on stimulated scattering instabilities of electromagnetic waves are investigated employing the recently derived expression for the electron number density perturbations that are driven by the ponderomotive and thermal forces in high Zi collisional plasmas. The growth rates and the threshold conditions for stimulated Brillouin and stimulated Compton scattering, as well as modulational instabilities, are obtained. It is found that the growth rates of the scattering instabilities of electromagnetic waves are considerably enhanced due to nonlocal electron heat conduction in collisional plasmas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.860592
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Coherent structures in shear flow-driven plasma microturbulence (1991)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 3 (1991), S. 45-50 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Nonlinear electromagnetic perturbations whose characteristic scale length is shorter than the ion Larmor radius are studied using a hydrodynamic description for the electrons, and a kinetic description for the ions, in nonisothermal, nonuniform, magnetized plasma. It is shown that ion drift-Alfvén perturbations may be linearly unstable in the presence of a parallel shear plasma flow. In the fully nonlinear regime a solution in the form of a moving double vortex is found.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.859955
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    Paper (German National Licenses)
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  • 9
    Electronic Resource
    Electronic Resource
    Ion temperature gradient mode in the weak density limit (1990)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 2 (1990), S. 848-850 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Including the Righi–Leduc ion heat flux in the energy equation, the ion temperature gradient mode (ITG mode) is reconsidered for flat density profiles in a plasma with inhomogeneous ion temperature and magnetic field gradients. The stability boundary is (re)derived and is compared with those derived recently using either an ad hoc model or the numerical analysis of the kinetic dispersion relation. The impact of ITG mode turbulence on the ion energy confinement in tokamaks is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.859271
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    Paper (German National Licenses)
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  • 10
    Electronic Resource
    Electronic Resource
    Ion-temperature-gradient-driven turbulence in partially ionized plasmas with sheared parallel flow (1993)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 5 (1993), S. 1911-1913 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The ion-temperature-gradient(ITG)-driven electrostatic modes are investigated in the presence of the equilibrium sheared parallel flow in partially ionized magnetoplasmas. It is found that the source of free energy stored in the ion-temperature inhomogeneity can be coupled to electrostatic fluctuations due to the ion–neutral drag. The present collisional instability can possibly account for nonthermal fluctuations and anomalous cross-field ion thermal transport in low-temperature partially ionized magnetoplasmas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.860773
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    Paper (German National Licenses)
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