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Filtering by: Creator Stewart, James Remove constraint Creator: Stewart, James Academic Affiliation Civil Engineering Remove constraint Academic Affiliation: Civil Engineering Degree Field Civil Engineering Remove constraint Degree Field: Civil Engineering

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  • The geochemical partitioning and bioavailability of trace metals in marine sediments

    Creator:
    Oakley, Stewart M.
    Abstract:
    Trace metals in the aquatic environment are generally concentrated on the surface of solid geochemical phases which eventually become incorporated into estuarine and marine sediments. The mechanism of trace metal concentration is believed to be adsorption with various geochemical phases such as hydrous metal oxides, clays, and organic matter. Metals...
    Resource Type:
    Dissertation
    Full Text:
    trace metals in marine sediments 1 AN ABSTRACT OF THE THESIS OF Stewart M. Oakley for the degree of

  • Treatment of activated sludge process effluent by carbon adsorption

    Creator:
    Davis, Stewart Lee
    Abstract:
    An evaluation of the service time of an activated carbon adsorption column and the organic carbon removal efficiency treating activated sludge process effluent was completed at aerator detention times of three, five, and ten hours. Parameters used for evaluation of treatment were biochemical oxygen demand, chemical oxygen demand, total organic...
    Resource Type:
    Masters Thesis
    Full Text:
    adsorption AN ABSTRACT OF THE THESIS OF Stewart Lee Davis (Name of student) in Civil Engineering

  • A model for simulating river and reservoir temperatures with applications for anadromous fish management

    Creator:
    Currie, James William
    Abstract:
    A problem confronting the Corps of Engineers and other water resources planners in the Pacific Northwest is the prediction of anadromous fish enhancement benefits that would result from a proposed high dam project. These benefits are expected from augmenting natural streamflows with relatively cold reservoir withdrawals. The resulting increased streamflows...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE THESIS OF JAMES WILLIAM CURRIE for the

  • Evaluation and application of ice segregation parameters for frost heave prediction

    Creator:
    Ito, Yuzuru, 1958-
    Abstract:
    The success of civil engineering construction in cold regions often depends on the assessment of the potential for frost heave. Over the past two decades two models have been presented to the engineering community to identify the frost heave potential, namely: (1) the segregation potential (SP), and (2) the discrete...
    Resource Type:
    Dissertation
    Full Text:
    . Kellogg, J. Richard Bell, James R. Lundy, and William G. McDougal, as well as the former graduate

  • A torsional investigation of a concrete I grider

    Creator:
    Martin, Roy Charles
    Abstract:
    This paper investigates a particular bridge construction technique which could result in a significant torsional moment. The structural member under consideration is a prestressed concrete girder for which no torsional consideration is made. Torsional shear stresses can be adequately approximated for an I-shaped girder. Laboratory model tests were performed to...
    Resource Type:
    Masters Thesis
    Full Text:
    Code. Proceedings (Journal) of the American Concrete Institute 56:591-618. Cowan, Henry J. and Stewart

  • Fate of ammonia volatilized from a confinement livestock facility

    Creator:
    Hoffman, Eldon Randall
    Abstract:
    A conceptual model was developed to further the understanding of the evolution and fate of volatilized ammonia in the atmosphere. Recent trends in livestock rearing have been toward confinement facilities in which high animal concentrations are maintained. One of the impacts of these facilities has been increased local concentrations of...
    Resource Type:
    Masters Thesis
    Full Text:
    (Stewart, 1970), and approximately 90% of the dry fecal matter is undigested organics of which 60 to 75

  • Aircraft washrack wastes : their characteristics and treatment

    Creator:
    Evans, David Roland
    Abstract:
    Oils, greases, and grit which collect on an aircraft during flight are removed on the U. S. Air Force washracks using an alkaline, water-base cleaner. Waste-flows from these washracks may include in addition to free oils, emulsified oils, and alkaline, water-base cleaners several other constituents such as acid skin brightners,...
    Resource Type:
    Masters Thesis
    Full Text:
    , James Connally AFB. 66 16 Chemical tests, McCoy AFB. 66 17 Chemical tests, Norton AFB. 67 18

  • Determination of equilibrium partial pressure of ammonia gas above anaerobically digested sewage sludge

    Creator:
    English, Charles Joseph
    Abstract:
    A laboratory study of anaerobically digested sewage sludge was performed to measure equilibrium constants for ammonia in the sludge. Measured constants describing the solution and dissociation of ammonia in sludge were compared to theoretical constants obtained from thermodynamic data. No significant difference was found between these two sets of constants....
    Resource Type:
    Masters Thesis
    Full Text:
    also reported substantial losses due to volatilization. Stewart, et al. (44) applied sludge

  • Correlation of methods for solving indeterminate frames

    Creator:
    Liu, David Cheng-Tso
    Resource Type:
    Masters Thesis
    Full Text:
    the 'elation betvieen beam curvature and bending nionent in 1694 by James Bernoulli (5, p.416), and

  • A method of seismic design for prestressed concrete highway bridge girders

    Creator:
    Lam, Kwok To
    Abstract:
    The effects of vertical ground motion are particularly significant in the design of highway bridge girders. Conventional codes do not recommend methods for solving the problem. The intent of this work is to suggest an approach for such design. A set of curves for velocity spectra which are the average...
    Resource Type:
    Masters Thesis
    Full Text:
    as that of a reinforced beam. This fact has been shown by Merlin L. James and his co- author in