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  • 1
    Electronic Resource
    Electronic Resource
    Assignment of two human α-1,3-galactosyltransferase gene sequences (GGTA1 and GGTA1P) to chromosomes 9q33-q34 and 12q14-q15
    Amsterdam : Elsevier
    Genomics 12 (1992), S. 613-615 
    Details
    ISSN: 0888-7543
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0888-7543(92)90458-5
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  • 2
    Electronic Resource
    Electronic Resource
    Absolute and convective instability of a viscous liquid jet surrounded by a viscous gas in a vertical pipe (1993)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 5 (1993), S. 771-773 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The absolute and convective instability of a viscous liquid jet emanating into a viscous gas in a vertical pipe is analyzed in a parameter space spanned by the Reynolds number, the Froude number, the Weber number, the viscosity ratio, the density ratio, and the diameter ratio. The numerical results of the analysis are used to demonstrate that reduction in gravity tends to enhance the Rayleigh mode of convective instability which leads to the breakup of a liquid jet into drops of diameters comparable with the jet diameter. On the contrary, the Taylor mode of convective instability that leads to atomization is retarded at reduced gravity. The Rayleigh mode becomes absolutely unstable when the Reynolds number exceeds a critical value for a given set of the rest of the relevant parameters. The domain of absolute instability is significantly enlarged when the effect of gas viscosity is not neglected.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.858662
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  • 3
    Electronic Resource
    Electronic Resource
    Photorefractive effect in Bi12SiO20:Cr crystals at 633 nm (1994)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 65 (1994), S. 1213-1215 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Pure and Cr2O3-doped Bi12SiO20 (BSO) single crystals have been successfully grown using Czochralski technique. Doping 30 ppm of Cr2O3 into BSO single crystals has lowered the transmittance and increased the photochromic effect of the materials significantly. Although the overall diffraction efficiency of photorefractive effect in response to 633 nm laser beam has not been increased, the intrinsic diffraction efficiency (ηi) and the response time constant (τ) have been improved markedly. The applicability of the BSO crystals in the red light regime is thus increased.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.112074
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  • 4
    Electronic Resource
    Electronic Resource
    Energy stability of Taylor's vortex array (1993)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 5 (1993), S. 1272-1272 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A sufficient condition of the linear stability of Taylor's two-dimensional decaying vortex array is obtained by use of the energy method.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.858614
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  • 5
    Electronic Resource
    Electronic Resource
    Absolute instability of a liquid jet in a gas (1989)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 1 (1989), S. 490-493 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The effect of the ambient gas density on the onset of absolute instability in a viscous liquid jet is examined. The critical Weber number, above which the instability is convective and below which the instability is absolute, is determined as a function of Reynolds number and the density ratio of gas to liquid. It is shown that the gas density has the effect of raising the critical Weber number. It also raises the cutoff wavenumber below which disturbances are spatially amplified and above which they are damped.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.857419
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  • 6
    Electronic Resource
    Electronic Resource
    Atomization of a liquid jet (1987)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 30 (1987), S. 2000-2006 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Generation of ripples by wind blowing over a viscous fluid was investigated by G. I. Taylor [The Scientific Papers of G. I. Taylor (Cambridge U. P., Cambridge, 1963), Vol. 3, No. 25] with linear stability analysis. Taylor considered the case of temporally growing disturbances in a low density gas and applied his results to explain the process of atomization of a liquid jet injected into a low density gas. Taylor's analysis is extended here to investigate the case of a spatially growing disturbance in a dense gas. Taylor showed that temporal disturbances of wavelength shorter than the capillary length are stable. The same is found for the spatial disturbances. Each type of disturbance possesses a maximum growth rate with a specific wavelength and frequency. The atomized droplet size corresponding to the maximum growth rate is shown in both theories to decrease inversely as the square of the jet velocity. While the maximum growth rate increases as the square root of the gas-to-liquid density ratio when A2 exceeds 1 for the temporal disturbances, the same dependence on the density ratio does not hold for spatial disturbances until A2 exceeds 100, where A2 is a flow parameter representing the ratio of surface force to the viscous force. When A2 exceeds 100 the growth rates predicted by two theories deviate significantly only at air pressure higher than 10 atm for most liquids at room temperature.However, for all parameters, the spray angle changes along the jet axis according to the spatial theory, but remains constant according to the temporal theory. It is shown that the viscous force in the liquid may be increased relative to the surface tension force to the point that no discernable spray angle may be observed in practice. Then an intact jet without atomization may result. It is shown that the onset of atomization is primarily caused by the pressure fluctuation which resonates the capillary waves. The results on the interfacial amplification rate suggest that a sufficiently large initial amplitude at the nozzle exit is essential for the onset of atomization.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.866214
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  • 7
    Electronic Resource
    Electronic Resource
    A branching liquid jet (1994)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 6 (1994), S. 2671-2675 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A new phenomenon of successive branching of a liquid jet emanating from a nozzle into the atmosphere has been reported [Phys. Fluids A 3, 241 (1991)]. It was observed that an intact jet can be made to bifurcate successively into a two-, three-, and multiple-pronged jet by oscillating the nozzle along its axis at a successively higher frequency. It is shown here that the observed multiple-pronged jet was actually multiple streams of droplets after the jet breakup generated by the lateral component of the nozzle oscillation, which was induced at the free end when the piezoelectric nozzle was axially vibrated. A plausible theoretical explanation of the formation of the multiple streams is given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.868156
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  • 8
    Electronic Resource
    Electronic Resource
    Transition from convective to absolute instability in a liquid jet (2001)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 13 (2001), S. 2732-2734 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The critical Weber number above which a liquid jet is convectively unstable and below which it is absolutely unstable is determined experimentally for various Reynolds numbers. The experimental results compare very well with the theoretical prediction, and provide the first evidence of transition from convective to absolute instability at relatively large Reynolds numbers. Comparisons of the present results with related results are made to expand and clarify the concept of absolute instability in the context of interfacial fluid dynamics. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1387469
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  • 9
    Electronic Resource
    Electronic Resource
    Breakup of a liquid jet in a swirling gas (1990)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 2 (1990), S. 2134-2139 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The convective instability of a viscous liquid jet emanating into a inviscid gas with a swirl is investigated. Contrary to the known case of a swirling liquid jet in a quiescent gas, the swirl in the ambient gas is shown to have a stabilizing effect. The inertia force in the gas is shown to play dual roles of both stabilization and destabilization. The gas inertia associated with the swirl has a stabilizing influence, but that associated with the interfacial pressure fluctuation has a destabilizing effect. A physical explanation of the mechanism of stabilization by the gas swirl is given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.857799
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  • 10
    Electronic Resource
    Electronic Resource
    The mechanism for surface wave instability in film flow down an inclined plane (1989)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 1 (1989), S. 819-828 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The equation governing the average rate of change of disturbance kinetic energy is evaluated for various wavenumbers at fixed values of Reynolds number, Weber number, and angle of inclination. The dominant energy production term is associated with the work done by the perturbation shear stress at the free surface. The mechanism of instability, however, is associated with a shift of perturbation vorticity relative to the surface displacement resulting from advection.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.857379
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