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Filtering by: Creator Wright, Robert O. Remove constraint Creator: Wright, Robert O. Degree Field Civil Engineering Remove constraint Degree Field: Civil Engineering Degree Level Doctoral Remove constraint Degree Level: Doctoral

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  • Estuarine sediment controls on trace metal distributions

    Creator:
    Davies-Colley, Robert J.
    Abstract:
    Sediments are the major compartment in aquatic environments for many materials of toxic or nutrient concern. The lack of knowledge of the phase associations of toxic metals in sediments is the largest deficiency in our understanding of the environmental hazard posed by metal contamination. This study examined the sedimentary partitioning...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE THESIS OF Robert J. Davies-Colley for the degree of Doctor of Philosophy in

  • Absorption of chlorophenols on granular activated carbon

    Creator:
    Yang, Maoyu
    Abstract:
    Studies were undertaken of the adsorption of chlorinated phenols from aqueous solution on granular activated carbon (Filtrasorb-400, 30x40 mesh). Single-component equilibrium adsorption data on the eight compounds in two concentration ranges at pH 7.0 fit the Langmuir equation better than the Freundlich equation. The adsorptive capacities at pH 7.0 increase...
    Resource Type:
    Dissertation

  • FATE group decision support system in transportation decision making

    Creator:
    Taekratok, Thaweesak
    Abstract:
    Two interesting challenges have been created in the traditional transportation planning process through recent adoption of more interactive roles by Federal, State and local transportation agencies and of those representing the communities being impacted by proposed transportation projects. First, the decision-making groups that formerly included solely transportation and related professionals...
    Resource Type:
    Dissertation

  • Nonlinear diffraction theory by an eigenfunction expansion of the Green's function

    Creator:
    Chen, Min-Chu
    Abstract:
    A second-order nonlinear diffraction theory is developed for a large diameter circular cylinder under the action of surface gravity waves of finite amplitude in water of-finite depth. Boundary value problems are derived by using a perturbation expansion and the solutions for the diffracted waves are given in terms of Fredholm...
    Resource Type:
    Dissertation
    Full Text:
    EIGENFUNCTION EXPANSION OF THE GREEN'S FUNCTION Abstract approved: Redacted for Privacy V Dr. Robert T

  • Mass transport in laboratory water wave flumes

    Creator:
    Kim, Tae In
    Abstract:
    A complete solution, exact to second-order, for wave motion forced by a hinged-wavemaker of variable-draft is presented. A solution for a piston type wavemaker is also obtained as a special case of a hinged-wavemaker with negative infinite draft. The existing Stokes inviscid theories for mass transport is extended to include...
    Resource Type:
    Dissertation
    Full Text:
    Abstract approved: _Redacted for Privacy Dr. Robert T. Hddspeth ) C-Y A complete solution, exact to

  • Irregular points in wavemaker boundary value problem

    Creator:
    Tanaka, Yoshihiro
    Abstract:
    A global solution is presented that accurately accounts for the singular behavior at all irregular points. The linearized boundary value problem in a semi-infinite strip in the physical plane is transformed into a smooth unit disk by two successive conformal mappings. The global solution results from a Fredholm integral equation...
    Resource Type:
    Dissertation
    Full Text:
    : Redacted for Privacy Dr. Robert T. Hudspeth A global solution is presented that accurately accounts for

  • Transport and adsorption of proteinanceous particles during flow through porous media

    Creator:
    Yamamoto, Tokuo
    Abstract:
    This is a fundamental study of the mechanism of protein particle removal during flow through sandy soil. Mathematical models for diffusion-adsorption and diffusion-convection-adsorption processes were developed and compared with experimental data. An attempt was made to calculate the distance over which the adsorption forces act. The differential equation for the...
    Resource Type:
    Dissertation
    Full Text:
    OF PROTEINACEOUS PARTICLES DURING FLOW THROUGH POROUS MEDIA Abstract approved: for Privacy Robert-W

  • Application of the generalized Melnikov method to weakly damped parametrically excited cross waves with surface tension

    Creator:
    Fadel, Suzan M.
    Abstract:
    The Wiggins-Holmes extension of the generalized Melnikov method (GMM) is applied to weakly damped parametrically excited cross waves with surface tension in a long rectangular wave channel in order to determine if these cross waves are chaotic. The Lagrangian density function for surface waves with surface tension is simplified by...
    Resource Type:
    Dissertation
    Full Text:
    Waves with Surface Tension Abstract approved: Robert T. Hudspe The Wiggins-Holmes extension of the

  • The static and dynamic analysis of discretely represented moorings and cables by numerical means

    Creator:
    Dominguez, Richard Frank
    Abstract:
    Computer oriented techniques and procedures are presented for the analysis of single and multiple cable systems. Application is made to a two-point mooring system influenced by surface and subsurface hydrodynamic loading. The effects of the various parameters are presented and the numerical method is compared to exact solutions obtained from...
    Resource Type:
    Dissertation
    Full Text:
    MEANS Abstract approved: Redacted for privacy Robert W. Fliskier Computer oriented techniques and

  • Dynamics of the nearshore wave bottom boundary layer

    Creator:
    Foster, Diane Lyn
    Abstract:
    This thesis presents an examination of the nearshore wave bottom boundary layer under conditions of significant sediment response. Using both field observations and simple models, the response of the bottom boundary layer to random waves is shown to have a complex behavior. First, the linearized wave bottom boundary layer governing...
    Resource Type:
    Dissertation
    Full Text:
    : Robert A. A olinan This thesis presents an examination of the nearshorewave bottom boundary layer under