Index Catalog // ScholarsArchive@OSU

The geochemical partitioning and bioavailability of trace metals in marine sediments

Creator:: Oakley, Stewart M.
Abstract:: Trace metals in the aquatic environment are generally concentrated on the surface of solid geochemical phases which eventually become incorporated into estuarine and marine sediments. The mechanism of trace metal concentration is believed to be adsorption with various geochemical phases such as hydrous metal oxides, clays, and organic matter. Metals...
Resource Type:: Dissertation
Full Text:: trace metals in marine sediments 1 AN ABSTRACT OF THE THESIS OF Stewart M. Oakley for the degree of

Treatment of activated sludge process effluent by carbon adsorption

Creator:: Davis, Stewart Lee
Abstract:: An evaluation of the service time of an activated carbon adsorption column and the organic carbon removal efficiency treating activated sludge process effluent was completed at aerator detention times of three, five, and ten hours. Parameters used for evaluation of treatment were biochemical oxygen demand, chemical oxygen demand, total organic...
Resource Type:: Masters Thesis
Full Text:: adsorption AN ABSTRACT OF THE THESIS OF Stewart Lee Davis (Name of student) in Civil Engineering

Streambed scour and redeposition behavior in streambed simulated culverts over an annual period

Creator:: Stewart, Anna
Abstract:: The objective of this study was to provide first order observations of bed level changes occurring in streambed simulated culverts throughout an annual period. To accomplish this, 30 culvert sites were selected in Oregon and Washington, and monitored over, at least, a 2 year period. Streambed scour and redeposition data...
Resource Type:: Honors College Thesis
Full Text:: Simulated Culverts Over an Annual Period by Anna Stewart A THESIS

Light reflecting characteristics of various pavement surfaces

Creator:: Paxson, Glenn Stewart, 1893-
Resource Type:: Masters Thesis
Full Text:: CHARACTERISTICS OF VARIOUS PAVEMENT SURFACES GLENN STEWART PAXSON A THESIS submitted to the OREGON STATE

In-plane Creep Behavior of Cross-laminated Timber and Mass Plywood Panels: A Methodology to Evaluate the Long-term Performance of Post-Tensioned Mass Timber Walls

Creator:: Longman, Ryan P.
Abstract:: Post-tensioned (PT) self-centering shear walls were designed to reduce structural damage from seismic activity. However, these lateral force resistant systems experience post-tension loss negatively affecting the re-centering capability due to delayed deformations experienced by engineered wood products over time. The long-term mechanical response of mass-timber panels to in-plane PT loads...
Resource Type:: Masters Thesis

Hybridized framing to modify load paths and enhance wood shearwall performance

Creator:: Bultena, Sarah M.
Abstract:: Heavy timber framing relies primarily on bracing to withstand lateral loads due to earthquakes and wind events. Bracing configurations in heavy timber framed buildings vary widely and include cross bracing, knee bracing, and other geometries. Many heavy timber frames constructed during colonial American times are still standing, exceeding the expected...
Resource Type:: Masters Thesis
Full Text:: 1 AN ABSTRACT OF THE THESIS OF Sarah M. Bultena

Influence of silt size and content on static liquefaction potential of sand

Creator:: Monkul, M. Murat
Abstract:: Different specimen preparation methods such as moist tamping, dry funnel deposition, slurry deposition, dry air pluviation have been reported in the literature to investigate the undrained behavior of silty sands. Similarly, different means have been used to densify the soils prepared with such methods. However, the influence of the densification...
Resource Type:: Dissertation

Uranium and technetium bio-immobilization in intermediate-scale physical models of an in situ bio-barrier

Creator:: Michalsen, Mandy M.
Abstract:: Metal and hydrogen ion acidity and extreme nitrate concentrations typical of Department of Energy (DOE) legacy waste sites pose formidable challenges to successful implementation of in situ bio-immobilization. Intermediate-scale (~ 2.5 m), flow through models of an in situ bio-barrier were constructed to investigate U and Tc removal from groundwater...
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE DISSERTATION OF Mandy M. Michalsen for the degree of Doctor of Philosophy in Civil

Evaluation of straw wattle placement and surficial slope stability

Creator:: Rikli, Anthony M.
Abstract:: Straw wattles are common erosion control devices used to trap sediment. This thesis studies the relationship of straw wattles on slope stability through a case study demonstrating their use on steep slopes (1.5H:1V) for the US20 highway realignment project. Several surficial slope failures have occurred on these fill slopes, often...
Resource Type:: Masters Thesis
Full Text:: THESIS OF Anthony M. Rikli for the degree of Master of Science in Civil Engineering presented on

Evaluation and Modification of a Thixotropic Fluid Model for Liquefaction Triggering with Application to Laboratory Tests and Lateral Spreading

Creator:: Brown, Tovey M.
Abstract:: Earthquake-induced liquefaction is a large contributor to damage observed following seismic events. Commonly observed damage consists of significant ground and structural failure due to the deformation of large volumes of soil due to soil liquefaction and lateral spreading. A significant focus of geotechnical seismic research concentrates on the development and...
Resource Type:: Capstone Project
Full Text:: OF Tovey M. Brown for the degree of Master of Science in Civil Engineering presented on May 28

ScholarsArchive@OSU

The geochemical partitioning and bioavailability of trace metals in marine sediments

Treatment of activated sludge process effluent by carbon adsorption

Streambed scour and redeposition behavior in streambed simulated culverts over an annual period

Light reflecting characteristics of various pavement surfaces

In-plane Creep Behavior of Cross-laminated Timber and Mass Plywood Panels: A Methodology to Evaluate the Long-term Performance of Post-Tensioned Mass Timber Walls

Hybridized framing to modify load paths and enhance wood shearwall performance

Influence of silt size and content on static liquefaction potential of sand

Uranium and technetium bio-immobilization in intermediate-scale physical models of an in situ bio-barrier

Evaluation of straw wattle placement and surficial slope stability

Evaluation and Modification of a Thixotropic Fluid Model for Liquefaction Triggering with Application to Laboratory Tests and Lateral Spreading

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