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  • 1
    Electronic Resource
    Electronic Resource
    Thermodynamic characterization of miscible blends from very similar polymers by inverse gas chromatography. The poly(ethyl acrylate)-poly(vinyl propionate) system (1989)
    s.l. : American Chemical Society
    Macromolecules 22 (1989), S. 4062-4068 
    Details
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ma00200a043
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  • 2
    Electronic Resource
    Electronic Resource
    Computation of the diocotron spectrum of a cylindrical non-neutral plasma (1999)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 6 (1999), S. 3442-3449 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A finite difference method is developed and used to compute the diocotron spectrum (discrete plus continuum) of a non-neutral plasma column with an arbitrary profile of the number density. For step function density profiles the results agree with the analytical dispersion relation. In contrast to earlier results, it is found that for a continuously varying hollow density profile the mode with azimuthal mode number l=2 has a growth rate comparable to that for a step function hollow density profile. The results obtained have been verified using an alternative numerical method in which the density is assumed to be constant over small intervals in the radius. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.873603
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  • 3
    Electronic Resource
    Electronic Resource
    Viscous instability in a non-neutral plasma (1999)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 6 (1999), S. 729-736 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The effect of viscosity on the stability of a non-neutral plasma is studied. Stability boundaries are obtained for two-dimensional electrostatic perturbations of long wavelengths. It is shown that a configuration with a monotone decreasing number density profile can be unstable when the plasma has viscosity. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.873309
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  • 4
    Electronic Resource
    Electronic Resource
    Stationary modes in a non-neutral plasma (1998)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 5 (1998), S. 895-901 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: In a non-neutral plasma column of constant density it is shown that, for certain parameter values, an infinitely degenerate internal mode, which has no variation in the axial direction, can be stationary in the laboratory frame. However, this mode cannot be driven resonantly by stationary electric or magnetic field asymmetries. When the plasma density is nonuniform the possibility of resonance of stationary field asymmetries with the continuous spectrum is pointed out. © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.872657
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  • 5
    Electronic Resource
    Electronic Resource
    Continuous spectrum of a non-neutral plasma column (1997)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 4 (1997), S. 895-897 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The linearized dynamics about the cylindrical equilibrium of a non-neutral plasma in a uniform axial magnetic field is discussed. A spectral analysis shows the existence of two continua, both of which are shown to be stable. The possibility of Suydam-like rapidly oscillating solutions is also demonstrated. The Suydam solutions may imply the existence of an infinite sequence of unstable modes that belong to the discrete spectrum. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.872184
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  • 6
    Electronic Resource
    Electronic Resource
    Fast rotational equilibrium in a toroidal non-neutral plasma (1996)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 3 (1996), S. 1470-1471 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: In a toroidally confined non-neutral plasma, in certain parameter regimes it is shown that a fast rotational equilibrium can exist in addition to the slow rotational equilibrium. For a low density plasma, the fast rotational equilibrium is shown to have a much larger inward shift of the streamlines of flow compared to the slow rotational equilibrium. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.871738
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  • 7
    Electronic Resource
    Electronic Resource
    Effect of the flow continuum on magnetohydrodynamic stability (1997)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 4 (1997), S. 3744-3748 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The flow resonance is concealed when the linearized equation of motion in magnetohydrodynamics is written in terms of the Lagrangian displacement vector. Its contribution to the dispersion equation of a rotating cylindrical plasma column, surrounded by a thin resistive wall, is clarified by a simple model calculation, relevant for axisymmetric modes, in the Eulerian representation. Under certain assumptions the flow resonance is shown to damp the resistive wall mode, with the damping proportional to the square of the gradient of vorticity at the resonant surface. It is shown that a flow resonance can stabilize a slightly elliptical plasma, surrounded by a thin resistive wall, against axisymmetric modes. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.872498
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  • 8
    Electronic Resource
    Electronic Resource
    Resonant diocotron instability in a non-neutral plasma with finite mass (1995)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 2 (1995), S. 1077-1083 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The condition for a resonant diocotron instability in a column of non-neutral plasma is generalized to include the effect of plasma inertia. Near the Brillouin limit, for modes with large azimuthal mode number, instability is shown to occur for a nonzero plasma density at the resonant surface, regardless of the density gradient. In the presence of inertia the existence of another singularity is pointed out. Its effect on stability is shown to be small near the Brillouin limit for modes with large azimuthal mode number. For certain values of the number density below the Brillouin limit this singularity can exist in the region of large plasma density, for a density profile close to a step function profile, and is shown to resonantly drive an instability if the average plasma density decreases radially outward at the resonant surface. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.871387
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  • 9
    Electronic Resource
    Electronic Resource
    Stability of magnetohydrodynamic equilibria with flow in the presence of a resistive wall (1994)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 1 (1994), S. 1768-1770 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The effect of a resistive wall on the stability of a magnetohydrodynamic equilibrium with flow is examined. Gyroscopically stabilized negative energy modes are shown to become unstable in the presence of a resistive wall. An estimate for the growth rate is obtained. The effect of this destabilization on the limits on the safety factor and the plasma beta for a rigidly rotating plasma column are studied.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.870681
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  • 10
    Electronic Resource
    Electronic Resource
    Equilibrium characteristics in a non-neutral plasma (1995)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 2 (1995), S. 3920-3922 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The system of equations governing the axisymmetric toroidal equilibrium of a non-neutral plasma is shown to become hyperbolic when the poloidal velocity of the plasma exceeds a sound speed. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.871022
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