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Filtering by: Creator Turner, J. E. Remove constraint Creator: Turner, J. E. Degree Field Civil Engineering Remove constraint Degree Field: Civil Engineering

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  • Stability of pipelines under shoaling finite amplitude waves

    Creator:
    Huang, Min-chih
    Resource Type:
    Masters Thesis
    Full Text:
    Date thesis is presented \c7-1)-(e, c7, k Typed by Deanna L. Cramer for Min-Chih Huang TABLE OF

  • An Efficient Workflow and Accuracy Assessment for ICESat-2 and Multispectral Imagery Fusion for Bathymetric Mapping

    Creator:
    Babbel, Benjamin J.
    Abstract:
    Interest in mapping bathymetry from multispectral satellite imagery has grown steadily since the 1970s. Notwithstanding the significant advancements made during this time, one limitation is that the group of algorithms collectively referred to as Satellite Derived Bathymetry (SDB) generally require “seed depths,” hindering their use for areas lacking reliable reference...
    Resource Type:
    Masters Thesis
    Full Text:
    Benjamin J. Babbel for the degree of Master of Science in Civil Engineering presented on May 27, 2020

  • Electron donor and chlorinated ethene effects on activity and community composition in anaerobic reductively dechlorinating consortia

    Creator:
    Sabalowsky, Andrew R.
    Abstract:
    This research focused on anaerobic transformation of trichloroethene (TCE), a groundwater contaminant. The mixed anaerobic Evanite culture (EV) was studied to determine community behavior and composition responses to different electron donors and chloroethene electron acceptors. The potential toxicity from high concentrations of TCE and its daughter product cis-1,2-dichloroethene (cDCE) was...
    Resource Type:
    Dissertation
    Full Text:
    Cl HH C C VC H Cl HH C C ETH H H HH C C H2 (2 e-) Cl-, H+ H2 (2 e-) Cl-, H+ H2 (2 e

  • Accuracy assessment of LiDAR point cloud geo-referencing

    Creator:
    Williams, Keith E.
    Abstract:
    Three-dimensional laser scanning has revolutionized spatial data acquisition and can be completed from a variety of platforms including airborne (ALS), mobile (MLS), and static terrestrial (TLS) laser scanning. MLS is a rapidly evolving technology that provides increases in efficiency and safety over static TLS, while still providing similar levels of...
    Resource Type:
    Masters Thesis
    Full Text:
    from LiDAR AN ABSTRACT OF THE THESIS OF Keith E. Williams for the degree of Master of

  • The effect of organic sorbent concentration on sorption kinetics

    Creator:
    Dolan, Mark E.
    Abstract:
    Batch sorption tests were conducted using 3,4-DCP and cellulose triacetate as the sorbate/sorbent pair. Sorbate concentrations in the liquid were sampled with time and analyzed by electron capture detector gas chromatography. Sorption was found to be a two stage process characterized by a rapid initial uptake followed by a extended...
    Resource Type:
    Masters Thesis
    Full Text:
    kinetics AN ABSTRACT OF THE THESIS OF Mark E. Dolan for the degree of Master of Science in Civil

  • The seismic vulnerability of sheet pile walls

    Creator:
    McCullough, Nason J.
    Abstract:
    The seismic performance of port structures has been well documented following recent earthquakes, and indicates that port structures are highly susceptible to earthquake-induced damages. These damages are primarily due to soil liquefaction and the associated ground failures. Sheet pile bulkheads provide vital intermodal and lifeline transportation links between water-side and...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Nason J. McCullough for the degree

  • The seismic geotechnical modeling, performance, and analysis of pile-supported wharves

    Creator:
    McCullough, Nason J.
    Abstract:
    This dissertation presents the results of a research effort conducted to better understand the seismic performance and analysis of pile-supported wharves. Given the limited number of well-documented field case histories, the seismic performance of pile-supported wharves has been poorly quantified, and the analysis methods commonly employed in engineering practice have...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Nason J. McCullough for the

  • A Multivariate Comparison of Drone-Based Structure from Motion and Drone-Based Lidar for Dense Topographic Mapping Applications

    Creator:
    Simpson, Chase H.
    Abstract:
    Unmanned aircraft systems (UAS), also known as drones, are an increasingly popular method of collecting surveying and mapping data. Two common drone-based mapping techniques are lidar and structure from motion (SfM) photogrammetry, and a frequently-heard (yet nearly impossible to answer) question is: “which is better?” The most common metric for...
    Resource Type:
    Masters Thesis
    Full Text:
    : ______________________________________________________ Christopher E. Parrish Unmanned aircraft systems (UAS), also known as drones, are an

  • Cyclic triaxial testing of low- to moderate-plasticity silts

    Creator:
    Butler-Brown, Jason J.
    Abstract:
    This project report presents a laboratory investigation of the dynamic behavior of saturated alluvial silty soils from sites in Oregon and Washington. The focus of the study was to document the liquefaction susceptibility, post cyclic strength, and volumetric strain behavior of the silt soils based on cyclic, undrained triaxial compression...
    Resource Type:
    Masters Thesis
    Full Text:
    Testing of Low- to Moderate- Plasticity Silts. Abstract approved: Stephen E. Dickenson This project

  • Discrete compression web bracing design for light-frame wood trusses

    Creator:
    Waltz, Miles E.
    Abstract:
    As part of a roof framing system, light-frame wood trusses often require lateral bracing to reduce the effective length for flexural buckling of compression web members. This observational research investigates the design requirements for discrete compression web bracing intended to provide such lateral support. Four simple brace analysis methods based...
    Resource Type:
    Masters Thesis