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Filtering by: Creator Li, B. S. Remove constraint Creator: Li, B. S. Degree Field Civil Engineering Remove constraint Degree Field: Civil Engineering Degree Level Doctoral Remove constraint Degree Level: Doctoral

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  • Reductive dechlorination of chlorophenols by vitamin B

    Creator:
    Smith, Mark Harrison
    Resource Type:
    Dissertation
    Full Text:
    Reductive dechlorination of chlorophenols by vitamin B

  • A Comprehensive Mechanistic Study on Using Fine Lightweight Aggregate to Mitigate Alkali-silica Reaction

    Creator:
    Li, Chang
    Abstract:
    Previous research has shown that using fine lightweight aggregate (FLWA) can be a promising strategy to mitigate alkali-silica reaction (ASR) in mortar and concrete. While several possible theories were proposed by researchers, discrepancies in testing methods, materials, and supporting evidence still exist. Therefore, this study was initiated. There are two...
    Resource Type:
    Dissertation
    Full Text:
    Li for the degree of Doctor of Philosophy in Civil Engineering presented on May 27, 2016

  • Investigation of Drilled Shafts under Axial, Lateral, and Torsional Loading

    Creator:
    Li, Qiang
    Abstract:
    Drilled shaft foundations provide significant geotechnical resistance for support of structures, such as highway bridges, traffic sign, and signal pole structures, and are used widely to meet their structural foundation requirements. The amount of steel reinforcement in drilled shaft foundations has increased over the past several decades to account for...
    Resource Type:
    Dissertation
    Date Created:
    Full Text:
    -10. Validation and evaluation of the FDM with the test data from Li et al. (2017) on (a) and (b) τs

  • Extreme Wave Runup and Runup Variability on Beaches

    Creator:
    Li, Chuan
    Abstract:
    Wave runup is an important physical process that affects nearshore sediment transport, coastal erosion, and flooding. Large and unexpected runup events can also be dangerous to beach goers. Extreme runup statistics are essential parameters used in engineering design of marine structures and in coastal management. Although the study of runup...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Chuan Li for the degree of

  • Amplification of solitary waves along a vertical wall

    Creator:
    Li, Wenwen
    Abstract:
    Reflection of an obliquely incident solitary wave at a vertical wall is studied experimentally in the laboratory wave tank. Precision measurements of water-surface variations are achieved with the aid of laser-induced fluorescent (LIF) technique and detailed temporal and spatial features of the Mach reflection are captured. During the development stage...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Wenwen Li for the

  • A mathematical model for adsorptive bubble-separation processes

    Creator:
    T'ang, Li
    Abstract:
    Adsorptive bubble-separation processes are used to remove adsorptive contaminants from wastewater. A mathematical model was developed for the adsorptive bubble separation processes in a countercurrent column. The model included an assumption that linear adsorption of the solute occurred on the gas bubbles. Predictions indicated that aqueous column height has less...
    Resource Type:
    Dissertation
    Full Text:
    Vb = volume of a single bubble, Vb = 4 7 rb3/3, CII1 3 S b = surface area of a single bubble, Sb

  • Transformation of halogenated methanes by microbially-reduced vitamin B₁₂

    Creator:
    Workman, Darla J.
    Resource Type:
    Dissertation
    Full Text:
    -reduced vitamin B₁₂ AN ABSTRACT OF THE THESIS OF Darla J. Workman for the degree of Doctor of

  • Nonlinear oscillations, bifurcations and chaos in ocean mooring systems

    Creator:
    Gottlieb, Oded
    Abstract:
    Complex nonlinear and chaotic responses have been recently observed in various compliant ocean systems. These systems are characterized by a nonlinear mooring restoring force and a coupled fluid-structure interaction exciting force. A general class of ocean mooring system models is formulated by incorporating a variable mooring configuration and the exact...
    Resource Type:
    Dissertation
    Full Text:
    . x 4+12]sin X5 (4) } -- . li -12 2 11. +12]4X3 4-1, [Lsuix,v2. X372- 11-122 b L sinX5 + lc 4

  • Deterministic and stochastic behaviors of a piecewise-linear system

    Creator:
    Mha, Ho-Seong
    Abstract:
    The (nonlinear) response behavior of a piecewise-linear system is investigated under both deterministic and stochastic excitations in this study. A semi-analytical procedure is developed to predict the system behavior by evaluating the joint probability density functions of the Fokker-Planck equations of the stochastic piecewise-linear system under random excitations via a...
    Resource Type:
    Dissertation
    Full Text:
    Oregon State University. I also thank all other members of my committee: Prof. Ronald B Guenther, Prof

  • Stochastic analysis of a nonlinear ocean structural system

    Creator:
    Lin, Huan
    Abstract:
    Stochastic analysis procedures have been recently applied to analyze nonlinear dynamical systems. In this study, nonlinear responses, stochastic and/or chaotic, are examined and interpreted from a probabilistic perspective. A multi-point-moored ocean structural system under regular and irregular wave excitations is analytically examined via a generalized stochastic Melnikov function and Markov...
    Resource Type:
    Dissertation
    Full Text:
    , Prof. Ron B. Guenther, Prof. Alan G. Hernried, Prof. Charles E. Smith, and Prof. Timothy C. Kennedy