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Filtering by: Creator Townsend, M. S. Remove constraint Creator: Townsend, M. S. Degree Field Civil Engineering Remove constraint Degree Field: Civil Engineering

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  • Use of benthic sediments as indicators of marina flushing

    Creator:
    Noble, Scott Morgan
    Abstract:
    This report presents the findings of a sediment analysis program formulated to determine the flushing potential of various shaped small boat marina basins. Chemical tests regarding volatile solids, Kjeldahl nitrogen, grease and oil, and sulfides were performed with the results compared to established sediment quality criteria. These results were used...
    Resource Type:
    Masters Thesis
    Full Text:
    Df7Larry S. Slotta This report presents the findings of a sediment analy- sis program formulated to

  • 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

  • Evaluation of Dynamic Passive Pedestrian Detection with a Framework for Future Applications

    Creator:
    Larson, Travis O.
    Abstract:
    Intersections pose unique transportation challenges regarding safety and operational efficiency. When pedestrians currently want to cross at intersection, they need to use a push button to issue a call for service. The call is static and cannot be altered or changed. But by implementing dynamic passive pedestrian detection sensors, intersections...
    Resource Type:
    Masters Thesis
    Full Text:
    either walk 3.0 ft/s and start walking at the onset of the pedestrian Walk interval or if they walk 3.5

  • An evaluation of gap acceptance behavior at unsignalized intersections

    Creator:
    Nabaee, Sahar
    Abstract:
    Gap acceptance behavior is critical to the safety and operational performance of unsignalized intersections. The complex nature of the human behavior and its dependence on various socioeconomic and environmental parameters makes it challenging for transportation professionals to assess the performance of such intersections. To investigate the behavioral patterns of drivers...
    Resource Type:
    Masters Thesis
    Full Text:
    Abstract approved: _____________________________________________ David S. Hurwitz Gap acceptance

  • Reductive, dechlorination of sediment-sorbed polychlorinated biphenyls by vitamin B₁₂(subscript s)

    Creator:
    Trobaugh, Darin James
    Abstract:
    The reductive dechlorination of chlorobiphenyls in sediment by titanium(III) citrate-reduced vitamin Bus was studied in batch reactors. Long term ampoule studies demonstrated reductive dechlorination of sediment-sorbed 2,3,4,5,6-pentachlorobiphenyl (2,3,4,5,6-PeCB) to tetra-, tri-, di-, and monochlorobiphenyl products. Over 50% chlorine removal was observed over 160 days. The results of the ampoule experiment...
    Resource Type:
    Masters Thesis
    Full Text:
    , 3047-3052. 12. Smith, M. H.; Woods, S. L. "Regiospecificity of Chlorophenol Reductive Dechlorination

  • Properties of geotextiles in cold regions applications

    Creator:
    Allen, Tony Michael
    Abstract:
    Geotextiles are experiencing increased use in arctic and subarctic construction in separation, reinforcement, erosion control, and drainage applications. The use of geotextiles as capillary cutoff layers to prevent frost heave has been proposed as well. In recognition of the need to investigate properties of geotextiles in cold regions applications, a...
    Resource Type:
    Masters Thesis
    Full Text:
    Normalized geotextile strength Newtons/m (lbs/in.) S N Mean normalized strength of five Newtons/m

  • Developing an analysis framework to compare commuter rail service and bus service in the Mid-Willamette Valley in Oregon

    Creator:
    Roholt, Ian M.
    Abstract:
    This thesis develops a framework for analyzing the application of commuter rail and bus services between several small urban centers to enhance overall connectivity. The study includes analyzing specific performance criteria for commuter rail service and express bus service based on data from existing systems around the U.S. The study...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Ian M. Roholt for the degree of Master of Science in Civil

  • Right-hook crash causality at signalized intersections

    Creator:
    Jannat, Mafruhatul
    Abstract:
    A Right-hook (RH) crash is a common type of bicycle-motor vehicle crash that occurs between a right-turning vehicle and through-moving bicycle at an intersection. At signalized intersections, RH crashes can occur at the onset of the green or during the latter portion of the green phase. In spite of the...
    Resource Type:
    Dissertation
    Full Text:
    , Engineer S. M. Golam Mostofa and Professor Parvin Akhter Jahan, and my brother, Dr. S. M. Niaz Arifin for

  • 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:
    . Appreciation is also given to other members of my committee: Prof. Robert M. Burton, Prof. John W. Leonard

  • Sound and Vibration Analysis of Alternative Rumble Strips

    Creator:
    Horne, Dylan Ross
    Abstract:
    Roadway departure crashes accounted for 18,275 fatal crashes in 2017 across the United States (Jones et al. 2017). Rumble strips (RS) provide audible and haptic interior alert when a vehicle is departing the roadway reducing run-off-the road crashes. Although inexpensive to install, and easy to maintain, RS are not installed...
    Resource Type:
    Dissertation
    Full Text:
    Jashami, David S. Hurwitz, Christopher M. Monsere, and Sirisha Kothuri