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  • American Institute of Physics (AIP)  (4)
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  • 1
    Electronic Resource
    Electronic Resource
    Dissipative electrostatic waves associated with the dust grain density in a nonequilibrium plasma (1999)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 6 (1999), S. 4784-4787 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A new nonlinear dissipative equation associated with the gravitational effect of dust grains is derived in a nonequilibrium plasma. Temporal evolution of the solution of this equation is shown by numerical calculation. It is shown that the nonlinear term of this equation forms the steepening and the dissipative effect damps the wave amplitude. Damping of the wave grows as the collision frequency increases. In the very low collision frequency, when the gravitational force becomes comparatively larger than the electrostatic force, the wave becomes somewhat unstable. On the other hand, when the collision frequency increases, i.e., the acceleration for the grains is comparatively larger, the behavior of the nonlinear wave becomes mild. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.873768
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  • 2
    Electronic Resource
    Electronic Resource
    The effect of the ion temperature on large amplitude ion-acoustic waves in an electron–positron–ion plasma (1996)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 3 (1996), S. 1447-1451 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The effect of the ion temperature on large amplitude ion-acoustic waves is studied in an electron–positron–ion plasma. The region of the existence of the ion-acoustic waves is presented, by the analysis of the structure of the pseudopotential. It is found that the ion temperature increases the maximum Mach number and decreases the amplitude of the ion-acoustic waves. The region of the existence sensitively depends on the ion temperature and the positron density and temperature. It is shown that the region of the existence of the ion-acoustic wave spreads as the ion temperature decreases. The present theory is applicable to analyzing large amplitude ion-acoustic waves in an electron–positron–ion plasma associated with the ion temperature which may occur in space. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.871734
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  • 3
    Electronic Resource
    Electronic Resource
    The dust charging effect on electrostatic ion waves in a dusty plasma with trapped electrons (1997)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 4 (1997), S. 2813-2819 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The effect of the dust charging and the influence of the ion density and temperature on electrostatic nonlinear ion waves in a dusty plasma having trapped electrons are investigated by numerical calculation. The nonlinear structure of the dust charging is examined, and it is shown that the characteristics of the dust charge number sensitively depend on the electrostatic potential, Mach number, trapped electron temperature, ion density, and temperature. An increase of the ion temperature decreases the dust charging rate and the propagation speed of ion waves. It turns out that a decrease of the trapped electron temperature increases the charging rate of dust grains. It is found that the existence of ion waves sensitively depends on the ion to electron density ratio. New findings of variable-charge dust grain particles, ion density, and temperature in a dusty plasma with trapped electrons are predicted. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.872414
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  • 4
    Electronic Resource
    Electronic Resource
    Triple-sheath structures in a plasma having trapped dust grains (2001)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 8 (2001), S. 3545-3549 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Triple-sheath structures and temporal evolution of the dust grain-charge in a dusty plasma with the trapped dust grains are investigated by numerical calculation. Trapped dust grains modify the shape of the sheath and give rise to the triple-electric field structures. The sheath width becomes narrower than that of the Boltzmann distributed dust grains due to the existence of trapped dust grains. It is found that trapped dust grains play an important role in the formation of the new sheath structure and shorten the charging time. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1375828
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