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Filtering by: Creator O'Neill, Larry W. Remove constraint Creator: O'Neill, Larry W. Degree Field Civil Engineering Remove constraint Degree Field: Civil Engineering

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  • A system analysis method for water quality management by flow augmentation

    Creator:
    Worley, John Larry
    Abstract:
    A rapid expansion of population and industrialization in recent years has created new and difficult problems in water resources management. Prudent management of water quality will require that more efficient methods be developed for evaluating large volumes of data on complex river systems, and tabulating the results in a form...
    Resource Type:
    Masters Thesis
    Full Text:
    p er s ec on d x0 .1 10 9 H 8 0 o U N N + 5 a a) W .9 ó w o i>a ó

  • Numerical and physical modeling of wave forces on A-Jacks units

    Creator:
    Wise, Larry
    Abstract:
    A numerical model is developed to estimate wave forces on A-Jacks armor units. The forces include drag, inertia, buoyancy, and slamming as the unit penetrates the free surface. The wave force model is used to determine the rigid body motions of the units. Bulk forces on a matrix of units...
    Resource Type:
    Masters Thesis
    Full Text:
    units AN ABSTRACT OF THE THESIS OF Larry Wise for the degree of Master of Science in Civil

  • The wastewater treatment characteristics of a rotating flighted cylinder

    Creator:
    Hansen, Larry Bruce
    Abstract:
    The rotating flighted cylinder (RFC) was investigated as a potential wastewater treatment deVice. A RFC is a rigid tube with a helically-wound fin attached to the interior surface and operates by flowing wastewater through the tube as it rotates. An 8-inch and 24-inch diameter RFC was tested for solids-liquid separation,...
    Resource Type:
    Masters Thesis
    Full Text:
    flighted cylinder AN ABSTRACT OF THE THESIS OP LARRY BRUCE HANSEN for the MASTER OF SCIENCE (Name

  • Measuring and Correcting the Electrical Resistivity of Concrete Pore Solution in Fresh Mixtures

    Creator:
    Biever, Joseph H.
    Abstract:
    A vital aspect of concrete construction is quality assurance and control (QA/QC). Engineered structures must meet pre-determined and agreed-upon strength and durability requirements. Concrete falls into a specific category of infrastructure material because in most cases, these strength and durability requirements cannot be found until the material has at least...
    Resource Type:
    Masters Thesis
    Full Text:
    : _____________________________________________________ W. Jason Weiss O. Burkan Isgor A vital aspect of concrete construction is quality

  • Sand pumping efficiency of a water ejector apparatus

    Creator:
    Saguanwongse, Suvat
    Abstract:
    The purpose of this investigation is to study the effect of the solid transport capacity in pumping operation: A special type of jet apparatus was investigated which emits a water jet downward counter current to delivery flow, from inside of the suction pipe toward sediment to be excavated. Two sizes...
    Resource Type:
    Masters Thesis
    Full Text:
    q. /Q and s m j w- h.d. (d. /D - 0. 274; Q = 49.4 gpm. ). J J J t 0. 1 G. 3 w , o

  • The effect of the diameter and spacing of manifold outlets on manifold flow

    Creator:
    Coleman, Michael Dale
    Abstract:
    A laboratory investigation was undertaken to evaluate the effect of lateral spacing and lateral diameter on the flow characteristics of a three dimensional blowing manifold. The model used in the experimental work was constructed of clear cast acrylic pipe, five inches in diameter. Laterals of two and four inch diameter,...
    Resource Type:
    Masters Thesis
    Full Text:
    . This is due to the alteration o f the discharge characteristics of the manifold. Z, 3. 39

  • Seasonal variations in tidal dynamics, water quality and sediments in the Siuslaw Estuary

    Creator:
    Utt, Michael Ernest
    Abstract:
    Seasonal data on tides, water quality and sediments in the Siuslaw Estuary were collected. Tide and velocity data were analyzed to evaluate damping conditions in the estuary. The system was found to approximate a weakly damped standing wave. A strong relationship of damping conditions to river flow was observed. The...
    Resource Type:
    Masters Thesis
    Full Text:
    (9) was taken 2.0 I.8 1.6 - 14- 4 _ w (6 1.2- 10 'Aij J X CC 0.8 w 0.6 0.4- 0.2- 0 0 o 0

  • Numerical simulation of sedimentation and circulation in rectangular marina basins

    Creator:
    Askren, David, 1947-
    Resource Type:
    Masters Thesis
    Full Text:
    V = volume w = vertical velocity W = basin width W e = entrance width x o = x coordinate of gyre

  • Entering streamflow effects on currents of a density stratified model reservoir

    Creator:
    Elwin, Elmer Harvey
    Abstract:
    The effect of entering streamflow on currents of a density stratified reservoir has been studied in a laboratory model to provide insight into the prediction, control, and maintenance of quality water discharge from a thermally stratified reservoir. Twenty experiments were performed using various concentrations of a sodium chloride solution to...
    Resource Type:
    Masters Thesis
    Full Text:
    Privacy Larry S. Slotta The effect of entering streamflow on currents of a density stratified reservoir

  • Pollution and tidal flushing predictions for Oregon's estuaries

    Creator:
    Choi, Byungho
    Abstract:
    The overriding goal of this study was to provide first order estimates of dilution and tidal flushing of waste discharges released hypothetically into various Oregon estuaries during critical low flows and tides. Causal relationships between discharged wastes and subsequent estuarine response were studied. Various approaches to determine the assimilative capacity...
    Resource Type:
    Masters Thesis
    Full Text:
    express my gratitude to Dr. Larry S. Slotta for his generous guidance and encouragement during the