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Filtering by: Creator Stewart, Hugh J. Remove constraint Creator: Stewart, Hugh J. Degree Field Civil Engineering Remove constraint Degree Field: Civil Engineering Non-Academic Affiliation Oregon State University. Graduate School Remove constraint Non-Academic Affiliation: Oregon State University. Graduate School

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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

  • Light reflecting characteristics of various pavement surfaces

    Creator:
    Paxson, Glenn Stewart, 1893-
    Resource Type:
    Masters Thesis
    Full Text:
    CHARACTERISTICS OF VARIOUS PAVEMENT SURFACES GLENN STEWART PAXSON A THESIS submitted to the OREGON STATE

  • 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:
    leadership demonstrated by Dr. J. Ronald Miner is tremendously ap- preciated, and I want to thank him for

  • 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:
    Abstract approved: Redacted for privacy Dr. J. R. MiAer A laboratory study of anaerobically digested

  • Hybridized framing to modify load paths and enhance wood shearwall performance

    Creator:
    Bultena, Sarah M.
    Abstract:
    Heavy timber framing relies primarily on bracing to withstand lateral loads due to earthquakes and wind events. Bracing configurations in heavy timber framed buildings vary widely and include cross bracing, knee bracing, and other geometries. Many heavy timber frames constructed during colonial American times are still standing, exceeding the expected...
    Resource Type:
    Masters Thesis
    Full Text:
    approved: ______________________________________________________________ Robert J. Leichti

  • 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

  • Effects of pressure and deposit thickness on the stabilization rate of benthic marine sludge deposits

    Creator:
    Muellenhoff, W. P.
    Abstract:
    The biochemical degradation of domestic sludge deposits exposed to benthic marine conditions was investigated using a laboratory Deep Sea Simulator. The rate and extent of deposit stabilization were determined for select hydrostatic pressures and hydrogen acceptor conditions by monitoring depletion of particulate organic carbon in 2.0 and 3.0 centimeter deposits....
    Resource Type:
    Dissertation
    Full Text:
    reported effective aerobic biological treatment of shipboard wastes using highly saline water (Stewart et

  • An investigation of the feasibility of a cutbank slope design method based on the analysis of natural slopes

    Creator:
    Keener, Quentin Roosevelt
    Abstract:
    The failure of cutbanks is a major problem encountered by those who construct low-cost roads in naturally forested residual soils. Attempts have been made to lessen the severity of failures by classifying certain soil areas as to their susceptibility to failure, in addition to bringing past design experience into play...
    Resource Type:
    Masters Thesis
    Full Text:
    . Douglas Swanson, Dr. Larry Hendrickson, and Mr. John Stewart are to be thanked. Thanks is also extended

  • Wood materials and shearwalls of older light-frame residential structures

    Creator:
    Carroll, Cameron T.
    Abstract:
    Light-frame construction practices and materials have changed greatly over the past 100 years. Contemporary research has focused on modern construction; thus, we know a great deal about the behavior of modern lightframe buildings under lateral forces. However, there are many light-frame buildings that were built prior to the introduction of...
    Resource Type:
    Masters Thesis
    Full Text:
    Robert J. Leichti Light-frame construction practices and materials have changed greatly over the