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Filtering by: Creator Angima, S. D. Remove constraint Creator: Angima, S. D. Degree Field Civil Engineering Remove constraint Degree Field: Civil Engineering Rights Statement In Copyright Remove constraint Rights Statement: In Copyright

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  • Multi-objective Optimization of Reservoir Operation Under Uncertainty with Robust and Flexible Decision Variables

    Creator:
    Hosseini, Parnian
    Abstract:
    Optimization of reservoir operation is involves various competing objectives for a scarce resource (water). To find the optimal operation of reservoirs, it is essential to consider multiple objectives simultaneously. There are various sources of uncertainty associated with the reservoir operation problem that should be considered as well. The overarching goal...
    Resource Type:
    Dissertation
    Full Text:
    Arturo S. Leon, Nathan L. Gibson Optimization of reservoir operation is involves various

  • Roughness and geometry effects of engineered log jams on 1-D flow characteristics

    Creator:
    Valverde, Rachelle S.
    Abstract:
    The re-introduction of large woody debris (LWD) into streams and rivers for stream restoration purposes is rapidly growing. Engineered log jams (ELJs) are man-made structures intended to mimic natural LWD structures, designed and installed to protect stream banks from erosion while increasing habitat diversity. Several studies have evaluated the flow...
    Resource Type:
    Masters Thesis
    Full Text:
    Geometry Effects of Engineered Log Jams on 1-D Flow Characteristics by Rachelle S. Valverde

  • A preliminary assessment of post-fire dissolved organic carbon concentrations in the McKenzie River basin, Oregon

    Creator:
    Hyatt, Charles
    Abstract:
    In recent decades, the occurrence of large, high severity wildfires has increased substantially in many parts of the world, including the western United States. These fires have the potential to impact water quality, aquatic ecosystems, and downstream communities for many decades. As such, it is increasingly important to understand the...
    Resource Type:
    Honors College Thesis
    Full Text:
    : _________________________________________________________ Kevin D. Bladon In recent decades, the occurrence of large, high severity wildfires has

  • An Experimental Study on Violent Geysers in Vertical Shafts

    Creator:
    Elayeb, Ibrahem S.
    Abstract:
    A Geyser in a stormwater (SW) and combined sewer system (CSS) is an oscillatory and violent release of a mixture of air and water through vertical shafts. Violent geysers are highly destructive. In the case of combined sewer systems, many municipalities operate their systems at a fraction of their maximum...
    Resource Type:
    Masters Thesis
    Full Text:
    ., characteristic velocity), D = 0.15 m, ν ≈ 10−6 m2/s, and σ ≈ 73 × 10−3 N/m. For these values, Re and We0.5 are

  • 3-D finite element modeling in OpenSees for bridge live-load girder distribution factors

    Creator:
    Scoggins, Luke A.
    Abstract:
    A generalized, three-dimensional, finite element bridge model was created in order to efficiently and accurately assess live-load girder distribution factors for a variety of bridge types. This model shortens the time required by bridge analysts to develop individual finite element models for bridges of varying geometries. The creation of the...
    Resource Type:
    Masters Thesis
    Full Text:
    22, 2007. Title: 3-D Finite Element Modeling in OpenSees for Bridge Live-Load Girder Distribution

  • Adjacent structure response sensitivity to seismic events using the direct differentiation method

    Creator:
    White, William S.
    Abstract:
    The response of adjacent structural systems to earthquake motions is investigated using the finite element framework OpenSees. Results of sensitivity analyses demonstrate that structural response quantities can increase in either or both of the adjacent structures for specific configurations. The structural models used include steel moment-resisting frames and rigid shear...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF William S. White for the degree

  • Optimization and control of cable deployment systems

    Creator:
    Mtira, Mohamed
    Abstract:
    An optimization methodology, algorithms, and computer program for cable/lumped-body deployment system are developed for the design and installation of sonar packages in deep ocean ranges. In addition, a methodology and algorithms for the control of the system are proposed. A penalty function is developed in terms of the system parameters...
    Resource Type:
    Masters Thesis
    Full Text:
    Redacted for Privacy Head of Department of Civil Engineering Redacted for Privacy Dean of Graduat S hool

  • Quantification of advection and dispersion in lateral subsurface flowpaths at the hillslope-scale

    Creator:
    Victory, Nichole I.
    Abstract:
    It is becoming increasingly important to understand fundamental hillslope-scale hydrological processes. Most hillslope-sale transport experiments have generally focused on conceptual findings or other aspect of flow behavior, rather than the quantification of the mass transport mechanisms of advection and dispersion. When the velocities have been quantified, dispersion has been mentioned...
    Resource Type:
    Masters Thesis
    Full Text:
    : __________________________________________ Jonathan D. Istok It is becoming increasingly important to understand fundamental hillslope

  • Metabolic uncoupling of Shewanella oneidensis MR-1, under the presence of excess substrate and 3,3’,4’,5 tetrachlorosalicylanilide

    Creator:
    Saini, Gaurav
    Abstract:
    Dissociation between catabolism and anabolism, generically termed “metabolic uncoupling”, has been studied for aerobic cultures of Shewanella oneidensis MR-1. Under conditions promoting metabolic uncoupling, the cell yield diminishes while the substrate utilization rate remains largely unchanged. The effects of excess substrate conditions and TCS addition on the metabolism of pyruvate...
    Resource Type:
    Masters Thesis
    Full Text:
    excess substrate and 3,3’,4’,5 Tetrachlorosalicylanilide. Abstract Approved: Brian D

  • Stochastic analysis of the nonlinear response transition behavior of an ocean system

    Creator:
    Yuk, Dongjun
    Abstract:
    The nonlinear response of an ocean system subjected to random excitations can exhibit very complex dynamic behaviors including jump phenomena and coexistence of attractors. In this study, the stochastic system response behavior of a simple (Duffing) oscillator under narrow-band random excitations is first examined in the subharmonic resonance region. A...
    Resource Type:
    Masters Thesis
    Full Text:
    of my committee: Prof. Thomas H. Miller, Prof. John Sessions, Prof. Ted S. Vinson for their