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  • Nonlinear Raman spectroscopy of gases

    Creator:
    Lundeen, Thomas F.
    Abstract:
    Applications of several methods of coherent nonlinear Raman Spectroscopy have been made in this thesis research. The theory and potential of one of these, Photoacoustic Raman Spectroscopy (PARS), is discussed in chapter two. Experimental results are presented which illustrate the sensitivity of this method and establish sampling conditions for maximum...
    Resource Type:
    Dissertation
    Full Text:
    pectroscopy of Gase Abtract approved: r fessor J. W. Nibler Applications several methods of coherent

  • Estimating spatial changes in acoustic velocity in felled Douglas-fir stems

    Creator:
    Dowding, Bodie
    Abstract:
    To compete with other building materials, the wood products industry must find a way to increase value and lower costs. Wood stiffness is important for most wood uses. Value can be increased and costs can be lowered by sorting logs for stiffness in the woods using acoustic devices mounted on...
    Resource Type:
    Masters Thesis
    Full Text:
    Engineering presented on May 27, 2010. Title: Estimating Spatial Changes in Acoustic Velocity in Felled

  • Observations of gas flow in porous media using the light transmission technique

    Creator:
    Parker, Laila Belkov
    Abstract:
    A novel technique was developed for studying gas phase flow in unsaturated porous media. Carbon dioxide was pumped through a back-lit chamber packed with translucent sand which was variably saturated with water containing the pH indicator dye methyl red. As the carbon dioxide dissolved in the pore water, lowering the...
    Resource Type:
    Masters Thesis

  • Modeling a heat regenerator-reactor with temperature dependent gas properties

    Creator:
    Kulkarni, Milind S.
    Abstract:
    This thesis examines the transient response of a packed bed heat regenerator when heated from an initial uniform bed temperature. Very large (1700 K) temperature differences were studied as well as the effect of simultaneous chemical reaction in the gas phase. First the effects of temperature on physical and transport...
    Resource Type:
    Masters Thesis
    Full Text:
    MODEL Vs CONSTANT GAS PROPERTY MODELS 67 4.6 COMPRESSIBLE MODEL Vs CONSTANT Cp OR CONSTANT h MODELS 81