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Filtering by: Creator Amarasekare, K. G. Remove constraint Creator: Amarasekare, K. G. Degree Field Civil Engineering Remove constraint Degree Field: Civil Engineering

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  • In vitro anaerobic trinitrotoluene (TNT) degradation with rumen fluid and an isolate, G.8

    Creator:
    Lee, Taejin
    Resource Type:
    Dissertation
    Full Text:
    rumen fluid and an isolate, G.8 AN ABSTRACT OF THE THESIS OF Taejin Lee for the degree of Doctor of

  • Ocean wave-soil-geotextile interaction

    Creator:
    McDougal, W. G. (William George)
    Abstract:
    Geotextiles are synthetic fabrics which may be substituted for graded aggregate to protect ocean and coastal structures from erosion and soil instability adjacent to the structure. They are commonly used as a filter and as a structural membrane between an undisturbed sediment surface below and an erosion resistant coarse aggregate...
    Resource Type:
    Dissertation
    Full Text:
    privacyAbstract approved: Dr. Charles K. Sollitt Geotextiles are synthetic fabrics which may be substituted for

  • Laboratory observations and numerical modeling of the effects of an array of wave energy converters

    Creator:
    Porter, Aaron K.
    Abstract:
    This thesis investigates the effects of wave energy converters (WECs) on water waves through the analysis of extensive laboratory experiments, as well as subsequent numerical simulations. Data for the analysis was collected during the WEC-Array Experiments performed at the O.H. Hinsdale Wave Research Laboratory at Oregon State University, under co-operation...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Aaron K. Porter for the degree

  • Evaluating safety at Oregon‘s isolated, high-speed, signalized intersections

    Creator:
    Kopper, Neil H.
    Abstract:
    Isolated approaches at signalized intersections with posted speed limits of 45 mph or greater generally experience large numbers of rear-end and angle collisions. A combination of less attentive drivers, high operating speeds, and less than ideal intersection characteristics can result in crash frequencies well above expected rates. A number of...
    Resource Type:
    Masters Thesis
    Full Text:
    : _____________________________________________ Karen K. Dixon Isolated

  • Behavior of a compliant wave-current barrier

    Creator:
    Kerper, Dale R.
    Abstract:
    This study includes an analytical solution to the wave-current barrier interaction problem and large scale experiments to validate the theory. The boundary value problem is solved mathematically by characterizing the flow field and barrier motion separately, then coupling the relationships with the appropriate kinematic and dynamic boundary conditions. The flow...
    Resource Type:
    Masters Thesis
    Full Text:
    . The spatial component is expressed as ikix -ik n x Aig cosh ki(z+h)e co A rn g cosh k n (z+h)e I a

  • An eigenvalue wave analysis of a fixed semi-immersed rectangular structure

    Creator:
    Steimer, Robert Bruce
    Abstract:
    The problem of a fixed rectangular structure of unit width in a train of simple harmonic normally-incident waves is modeled. The solution allows for variable (1) length and draft of structure, (2) differing depths in the three (fore, aft, and beneath the structure) distinct regions, and (3) wave period. The...
    Resource Type:
    Masters Thesis
    Full Text:
    condition: Or 94) 0-w2th + g b az w2 Dz g Now applying this to Z = C cosh K(z+h) @ z= 0 +Z=Ccosh Kh

  • Finite amplitude deep water waves : a comparison of theoretical and experimental kinematics and dynamics

    Creator:
    Jensen, Robert E.
    Abstract:
    Problems associated with quantification of deep water wave kinematics and dynamics are examined. Summaries of Stokes' theory and Dean's stream function theory are reported. A computer algorithm is developed to solve the hydrodynamic characteristics for Stokes' fifth and third order and linear theories. Tests are initiated to verify the results...
    Resource Type:
    Masters Thesis
    Full Text:
    following: where q5(X,Z,t) = K, COSh[K(g h)] sin[K(x Ct)] n(x,t) = 1 cos[K(x - Ct)] K K = XA = HK 1

  • Optimal sensor placement for measuring operating speeds through curves on rural two-lane highways

    Creator:
    Mecham, Megan E.
    Abstract:
    Operating speed is one of the best performance measures that can tell transportation agencies how well or how poorly the transportation system is functioning. Fluctuating operating speeds often mean there is a design flaw or something about the physical road design that violates drivers' expectations. A primary example of this...
    Resource Type:
    Masters Thesis
    Full Text:
    .7 : D ev el o p in g S p ee d P ro fi le s- C h ec k in g G ra p h f o r N ex

  • Wave interaction with rubble mound structures

    Creator:
    Yoo, Chul-hee
    Abstract:
    The objective of this study is the development and verification of an analytical solution for an unsteady flow field partially occupied by a permeable structure. Flow is induced by a small amplitude incident wave train and the permeable structure may contain multilayered anisotropic but homogeneous material. The analytical solution developed...
    Resource Type:
    Masters Thesis
    Full Text:
    turbulent friction coefficient is identical in similar materials: vV CfV2 i = + (55) gKp g K 1/2P

  • Effectiveness of curve advisory speed signs : a characterization of road operations in western Oregon

    Creator:
    Avelar Morán, Raúl Eduardo
    Abstract:
    Posting advisory speed signs at sharp horizontal curve locations is a common practice in the U.S. These signs recommend drivers safe speeds to negotiate such curves. Literature indicates that adherence to advisory speeds is, in general, poor. Moreover, limited research is available that quantifies safety implications of these signs. This...
    Resource Type:
    Masters Thesis
    Full Text:
    Operations in Western Oregon. Abstract approved: ___________________________ Karen K. Dixon