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Filtering by: Alternative title ssim Report no. 74-16 Remove constraint Alternative title ssim: Report no. 74-16 Academic Affiliation Civil Engineering Remove constraint Academic Affiliation: Civil Engineering Degree Field Civil Engineering Remove constraint Degree Field: Civil Engineering

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  • Evaluation of estuarine channel conditions in Coos Bay, Oregon using side-scan sonar

    Creator:
    Hartman, Gregory L.
    Abstract:
    Side-scan sonar records in Oregon's Coos Bay estuary navigation channels were obtained at intervals of two to three months during the November 1974 - October 1975 time period from Coos Bay Channel Mile 11+50 to 15+20, and from a reach in the Marshfield Channel. A limited side-scan survey effort was...
    Resource Type:
    Masters Thesis
    Full Text:
    SCIENCE (Name) (Degree) in CIVIL ENGINEERING presented on 16 April 1976 (Major Department) (Date) Title

  • Chromium (VI) sorption in soils : chemical behavior and solute transport modeling

    Creator:
    Schroth, Martin Herbert
    Abstract:
    Chromium spills on soils are causing severe groundwater contamination problems. To increase the performance of cleanup methods, the chemical behavior of chromium in soils and its transport through soils have to be understood. The objectives of this research were to investigate the sorption characteristics of chromium(VI) in soil and to...
    Resource Type:
    Masters Thesis
    Full Text:
    Pore volume Initial pH Extractant no ml conc. mg/1 4 24.3 14.6 7.00 Distilled water 16 Analytical

  • A model for simulation of subsurface transport of highway-related water quality constituents

    Creator:
    Hesse, Edwin Todd
    Abstract:
    A spreadsheet-based transport model was developed in Microsoft Excel™ as part of a six-year National Cooperative Highway Research Program project conducted at Oregon State University. The model simulated the leaching, transport, removal, and retardation processes that occur in the surface and subsurface pathways of the near highway environment. For all...
    Resource Type:
    Masters Thesis
    Full Text:
    Master of Science in Civil Engineering presented on March 16, 2001. Title: A Model for Simulation of Sub

  • Development of the simplified method to evaluate dynamic mechanical analysis data on asphalt-aggregate mixtures

    Creator:
    Ab-Wahab, Yunus Bin
    Abstract:
    Testing of asphalt binders and asphalt-aggregate mixtures using dynamic mechanical analysis is becoming popular with improvements in high-speed computers, precision equipment, and computer software. Researchers are trying to describe the behavior of asphalt binders and asphalt-aggregate mixtures in terms of their time- and temperature-dependent linear viscoelastic behavior. The objectives of...
    Resource Type:
    Dissertation
    Full Text:
    degree of Doctor of Philosophy in Civil Engineering presented on February 16. 1993. Title: Development

  • Analysis of dichotomous response models for low-dose carcinogenic risk estimation

    Creator:
    Tabesh, Taraneh
    Abstract:
    Several dichotomous-response models of carcinogenesis are discussed and their implications for low-dose risk estimation are examined. In addition, a pharmacokinetic model incorporating non-linear kinetics is studied and the results are investigated with respect to multiple-pollutant exposures. None of these models appears to suggest the existence of "thresholds". The analysis of...
    Resource Type:
    Masters Thesis
    Full Text:
    in Civil Engineering presented on August 16, 1983. Title: ANALYSIS OF DICHOTOMOUS RESPONSE MODELS

  • Radon-222 as a tracer for performance assessment of NAPL remediation technologies in the saturated zone : an experimental investigation

    Creator:
    Gottipati, Sarayu
    Abstract:
    Persistence of Non aqueous phase liquids (NAPLs) in the subsurface at residual saturations eventually contributes to undesirable groundwater contamination. Proper characterization of subsurface NAPL, its location, composition and distribution, is essential for the chosen remediation technology to be effective. It is also desirable to assess the performance of remedial actions...
    Resource Type:
    Masters Thesis
    Full Text:
    Sarayu Gottipati for the degree of Master of Science in Civil Engineering presented on January 16, 1996

  • Modeling estuary pollution by computer simulation

    Creator:
    Grenney, William J.
    Abstract:
    A digital computer model was developed to simulate the time and space distribution of a dissolved pollutant in an estuary. The program is basically a one-dimensional finite-difference model, but two dimensions can be represented by attaching together several one-dimensional channels. The influence of convection, dispersion and decay are included in...
    Resource Type:
    Masters Thesis
    Full Text:
    Other Methods 10 GENERAL MODEL 12 General Structure 1 2 Water Quality Model 16 Sources and Sinks 19

  • 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:
    Science in Civil Engineering presented on February 16, 2001. Title: Stochastic Analysis of the Nonlinear

  • The Design of a Roof Truss for the Proposed Drill Shed at the Oregon Agricultural College

    Creator:
    Thompson, Ralph Infield
    Abstract:
    By an appropriation of the Oregon Legislature of it becomes possible for the Oregon Agricultural College to build a drill shed, a thing long needed by this institution. Dennis, Hendricks and Tobey, architects of Portland, submitted plans for this drill shed and in designing the truss for this building we...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    3 in. x 13/16 in. joined in the same way. The truss is supported at each end by a latticed

  • Plans and Specifications for a Sewerage System for all of Corvallis Lying West of Ninth Street

    Creator:
    Gardner, Wilford W.
    Abstract:
    At the present time only a portion of Corvallis is sewered and a portion of the city still employs the most crude and unhealthful methods of disposal. The district east of Ninth Street, as shown on the map, has an effective system of well constructed sewers, of the combined storm-water...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    cost is no greater than a brick sewer. The thickness of the sewer was taken at six inches. This is