Index Catalog // ScholarsArchive@OSU

Weather and large waves along the Oregon coast: atmospheric controls on a numerical wave model

Creator:: Ellenson, Ashley N.
Abstract:: In this study, the effects of implementing different wind input or physics packages in a numerical wave model to recreate large wave conditions are explored. Three large wave events are simulated with WaveWatch III. The wind inputs which are compared are NCEP's Global Forecasting System (GFS) with 0.5 degree resolution...
Resource Type:: Masters Thesis
Full Text:: repercussion of the directional distribution function implemented by NDBC in the 2-D wave spectra analysis

Wave-by-wave Forecasting of Sea Surface Elevation for WEC Applications Utilizing NARX Neural Networks

Creator:: Gillespie, Alice
Abstract:: Forecasting of ocean waves over a short duration on the order of tens of seconds was approached with the optimization of wave energy conversion in mind. This study outlines the development of an artificial neural network model, specifically the Nonlinear Autoregressive Network with Exogenous Input (NARX), to predict a wave-by-wave...
Resource Type:: Masters Thesis
Full Text:: like to extend a round of thanks to committee members Dr. Istok, Dr. Batten, and Dr. Sharp for

Watershed modeling at Yucca Mountain, Nevada

Creator:: Britch, Michael J.
Abstract:: Studies are currently underway to determine the suitability of Yucca Mountain in Nevada as the nation's first high-level nuclear waste repository. Values of net infiltration are required to determine pre-waste emplacement groundwater travel times and the performance of the repository as a waste containment system. The objective of this study...
Resource Type:: Masters Thesis
Full Text:: : Redacted for Privacy Jonathan D. Istok Studies are currently underway to determine the suitability of

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:: : ____________________________________________ Jonathan D. Istok Metal and hydrogen ion acidity and extreme nitrate

Uranium and technetium bio-immobilization in intermediate-scale permeable reactive scale barriers

Creator:: Sapp, Mandy M.
Abstract:: Groundwater at Oak Ridge National Laboratory's Field Research Center (FRC) is contaminated with U(VI) and Tc(VII), has pH values as low as 3.3, and nitrate concentrations as high as 120 mM. The objective of this research was to determine if in-situ bio-immobilization is a viable treatment alternative for this water....
Resource Type:: Masters Thesis
Full Text:: -immobilization in Intermediate-Scale Permeable Reactive Barriers Abstract approved: Jonathan D. Istok

Unmanned aircraft systems for bridge inspection : testing and developing end-to-end operational workflow

Creator:: Gillins, Matthew N.
Abstract:: Bridge inspections are vital for monitoring the health and serviceability of transportation infrastructure throughout the world. However, inspections can be logistically-challenging, expensive, and dangerous. For example, inspections may require climbing, as well as the use of scaffolding, ladders, rescue boats, bucket trucks, and/or under-bridge inspection vehicles. Small, multirotor unmanned aircraft...
Resource Type:: Masters Thesis
Full Text:: Oregon State University, Farid Javadnedjad, Chase Simpson, and Jonathan Burnett for their assistance in

U(VI) transport in subsurface materials: is two-site, one-species modeling sufficient?

Creator:: Harrington, Stephanie J.
Abstract:: Uranium adsorption to Hanford sediment was studied for various pH, total inorganic carbon concentrations, and total U(VI) concentrations. Both batch and transport studies were done in an attempt to understand the adsorptive trend of U(VI) on Hanford sediment, and the changes in adsorption as both pH and total inorganic carbon...
Resource Type:: Masters Thesis
Full Text:: : Brian D. Wood Uranium adsorption to Hanford sediment was studied for various pH, total inorganic

Tidal range changes in the Delaware Bay : past conditions and future scenarios

Creator:: Hall, George F.
Abstract:: Throughout the Holocene, appreciable changes in bathymetry are hypothesized to have resulted in large changes to tidal datums in coastal and estuarine areas. An understanding of tidal change is an important contribution to the knowledge of relative historical sea-level change and future coastal planning. To test this hypothesis, the Advanced...
Resource Type:: Masters Thesis

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:: was linearly related to the excess pore pressure ratio (i-a) as: r=D=AD (16) 22 2.0 1.5 0.5 0

The effect of environmental conditions on the reductive dechlorination of pentachlorophenol by a mixed, methanogenic culture

Creator:: Stuart, Sheryl L.
Resource Type:: Dissertation
Full Text:: 3-6b (67) 3-chlorobenzoate --> benzoate D. tiedjeii llb (22) 2-chlorophenol ---> phenol 2CP-1 5 b

ScholarsArchive@OSU

Weather and large waves along the Oregon coast: atmospheric controls on a numerical wave model

Wave-by-wave Forecasting of Sea Surface Elevation for WEC Applications Utilizing NARX Neural Networks

Watershed modeling at Yucca Mountain, Nevada

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

Uranium and technetium bio-immobilization in intermediate-scale permeable reactive scale barriers

Unmanned aircraft systems for bridge inspection : testing and developing end-to-end operational workflow

U(VI) transport in subsurface materials: is two-site, one-species modeling sufficient?

Tidal range changes in the Delaware Bay : past conditions and future scenarios

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

The effect of environmental conditions on the reductive dechlorination of pentachlorophenol by a mixed, methanogenic culture

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