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Filtering by: Creator Poplawsky, Jonathan D Remove constraint Creator: Poplawsky, Jonathan D Committee Member Istok, Jonathan D. Remove constraint Committee Member: Istok, Jonathan D. Degree Name Doctor of Philosophy (Ph.D.) Remove constraint Degree Name: Doctor of Philosophy (Ph.D.)

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  • Bacterial hydrophobicity : assessment techniques, applications and extension to colloids

    Creator:
    Saini, Gaurav
    Abstract:
    This research details laboratory assessment of bacterial hydrophobicity, variations in bacterial adhesion properties with growth and extended starvation as well as extension of this assay to colloidal hydrophobicity measurement. Hydrophobicity is an integral component of surface interactions and has been studied extensively for its role in a number of engineering...
    Resource Type:
    Dissertation
    Full Text:
    , Applications and Extension to Colloids Abstract approved: Brian D. Wood This research

  • Interactive Genetic Algorithms for watershed planning : an investigation of usability and human-centered design

    Creator:
    Piemonti, Adriana Debora
    Abstract:
    Degradation of watersheds is a major concern in areas where adverse climate effects and unsustainable use of the natural resources have caused extensive stresses to watershed systems (e.g., increased floods, increased droughts, worsened in-stream water quality) through the years. While considerable efforts are being made to generate technical solutions that...
    Resource Type:
    Dissertation
    Full Text:
    Eval (lower) AOIs. Sections a) and b) show the results for sessions I1 to I3. Sections c) and d) show

  • On Undular Bores and Solitary Waves in Variable Depth

    Creator:
    Knowles, Jeffrey N.
    Abstract:
    Numerical results are presented using a higher-order pseudo-spectral method in order to solve the Zakharov-Craig-Sulem formulation of the Euler model. We study the effects of variable bathymetry on weakly-dispersive, weakly-nonlinear, shallow water waves. Improved predictions on wave amplitude and shoaling behavior are developed by analytical means in the context of...
    Resource Type:
    Dissertation
    Full Text:
    committee members Dr. Jonathan Istok, Dr. Juan Restrepo, Dr. Eugene Zhang, Dr. Solomon Yim, Dr. Ralph

  • An experimental study of laminarization induced by acceleration and curvature

    Creator:
    Jackson, R. Brian
    Abstract:
    The Generation IV Very High Temperature Reactor (VHTR) design is being actively studied in various countries for application due to its inherent passive safe design, higher thermal efficiencies, and proposed capability of providing high temperature process heat. The pebble bed core is one of two core designs used in gas...
    Resource Type:
    Dissertation
    Full Text:
    .................................................................. 174 C: TIME AVERAGED TEST CASE PITOT TUBE VELOCITIES ..................... 184 D: PIV EQUIPMENT

  • Study of Energy Harvesting Performance of Oscillating Airfoils using a Discrete Vortex Model

    Creator:
    Kamrani Fard, Kiana
    Abstract:
    The energy harvesting performance of oscillating airfoils is studied using a discrete vortex model (DVM) with a leading-edge separation criterion. The airfoil undergoes a combined sinusoidal heaving and pitching motion at reduced frequencies of k = 0.06 − 0.16, with heaving amplitude of h0 = 0.5c, and pitching amplitude of...
    Resource Type:
    Dissertation
    Full Text:
    on the bottom surface); (d) pressure contours before, at, and after the critical time indicating the

  • Assimilation of Multi-Sensor Data into Numerical Hydrodynamic Models of Inland Water Bodies

    Creator:
    Javaheri, Amir
    Abstract:
    Numerical models are effective tools for simulating complex physical processes such as hydrodynamic and water quality processes in aquatic systems. The accuracy of the model is dependent on multiple model parameters and variables that need to be calibrated and regularly updated to reproduce changing aquatic conditions accurately. Multi-sensor water temperature...
    Resource Type:
    Dissertation
    Full Text:
    on the lake at four different times, a) August 7, b) August 23, c) September 24, and d) October 10