Index Catalog // ScholarsArchive@OSU

Binary stochastic media transport : a coupled mesh based method

Creator:: Barnett, Nathan A.
Abstract:: Transport in a binary stochastic media has been an area of interest for many applications over the past three decades. Many different methods have been attempted, most based on the Levermore-Pomraning coupled transport model. However, this method has never been able to correctly solve problems where a large amount of...
Resource Type:: Masters Thesis
Full Text:: : __________________________________________________________________ Todd S. Palmer Transport in a binary stochastic media has been an area of interest for many

Pair production treatments for deterministic pulse-height distribution simulations

Creator:: MacQuigg, Michael R.
Abstract:: This thesis presents methods for treating annihilation photon pairs in deterministic pulse height distribution (PHD) simulations. The methods are applied in PHD simulations for monoenergtic sources of 1.6 and 2.6 MeV photons incident on 5 and 10 cm 1-D slabs of germanium, sodium iodide, and lead and the results are...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Michael R. MacQuigg for the

Analysis of the method of tubes characteristic schemes in the thick diffusive limit

Creator:: Rising, Michael E.
Abstract:: Characteristic methods are widely known to be very accurate approaches to the solution of numerical transport problems. These methods are most often used for neutron transport applications (i.e. lattice physics calculations) where spatial cells are of intermediate optical thickness (O(1) - O(100) mean free paths, depending on the energy group)...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Michael E. Rising for the degree of

An ecosystem service approach to inform reactive nitrogen management in the lower Yakima River Basin, Washington

Creator:: Crowell, Morgan
Abstract:: Spatially explicit ecosystem service valuation (ESV) allows for the identification of the location and magnitude of services provided by natural ecosystems to human activities along with a measure of their significance based upon economic valuation. While ESV has been used to provide new insight into land use management, few studies...
Resource Type:: Masters Thesis
Full Text:: Lower Yakima River Basin, Washington. Abstract approved: Michael E. Campana Spatially explicit

A Study of Artificial Neural Networks for the Solution of Multi-group Slab Geometry Discrete Ordinates Transport Problems with Material Heterogeneity

Creator:: Kumar, Ravi
Abstract:: In this thesis, we expand the scope of a previously introduced Artificial Neural Network (ANN) method to solve the slab-geometry discrete ordinates (S$_N$) neutron transport equations. Specifically, we extend the method to energy-dependent (multi-group) fixed source problems involving heterogeneous media and more general boundary conditions - vacuum and incident flux...
Resource Type:: Masters Thesis
Full Text:: Material Heterogeneity Abstract approved: Todd S. Palmer In this thesis, we expand the scope of a

A Review of Water Banking in State Legislation of the Western United States

Creator:: Brennan, Sarah E.
Abstract:: Among the suite of water resources management strategies, water banking can be a tool for water resource management in areas with high water demands or localized water scarcity. This research aims to further the understanding of water banking by conducting a review and analysis of relevant state legislation. This research...
Resource Type:: Masters Thesis
Full Text:: approved: ______________________________________________________ W. Todd Jarvis Among the suite of

Investigation of the behavior of diagonally cracked full-scale CRC deck-girders injected with epoxy resin and subjected to axial tension

Creator:: Smith, Matthew T. (Matthew Todd)
Abstract:: Article 1: Behavior of Epoxy Injected Diagonally Cracked Full-Scale CRC Deck-Girders. Many cast-in place reinforced concrete deck-girder bridges (RCDG) remain in the national inventory and exhibit diagonal cracking. Epoxy injection has been in use for several decades as a method for sealing diagonal cracks, but the effects on girder behavior...
Resource Type:: Masters Thesis
Full Text:: Concrete Beams,” Oregon Department of Transportation, Salem, OR, 2003, 19 pp. Popov, E. P., and

The role of bedrock groundwater in rainfall-runoff response at hillslope and catchment scales

Creator:: Gabrielli, Christopher P.
Abstract:: Bedrock groundwater dynamics in headwater catchments are poorly understood and poorly characterized. Direct hydrometric measurements have been limited due to the logistical challenges associated with drilling through hard rock in steep, remote and often roadless terrain. Here we develop and use an inexpensive, portable bedrock drilling system to explore bedrock...
Resource Type:: Masters Thesis
Full Text:: ABSTRACT OF THE THESIS OF Christopher P. Gabrielli for the degree of Master of Science in Water

Water management decentralization in rural Honduras

Creator:: Sano, Yoshiko
Abstract:: Numerous water supply systems and community based water boards have been created with the aid of international organizations and NGOs in developing countries. These water systems have great potential to improve people’s social life and health in these countries. However, in reality, these water systems are often not effectively managed;...
Resource Type:: Masters Thesis
Full Text:: approved: ________________________________________________________________ Michael E. Campana

Quantification of Ecological Change Using Repeat Photography and Ground Based Lidar

Creator:: Batchelor, Jonathan L.
Abstract:: Remote sensing techniques have long been useful in quantifying changes in ecosystems and the field of remote sensing is constantly evolving to better assess and describe changes, both spatially and temporally. In this thesis I explored the novel use of two remote sensing methods to quantify ecosystems; repeat photograph to...
Resource Type:: Masters Thesis
Full Text:: . Ripple Todd M. Wilson Remote sensing techniques have long been useful in

Classification Modeling of Nuclear Power Plant Outage Severities with Complement Naïve Bayes and Bidirectional Encoder Representations from Transformers

Creator:: Castillo, Michael A.
Abstract:: Low-level nuclear power plant outages in the United States can lead to unanticipated costs, potentially compromising the expected operation lifetime of the plant. Nuclear power plants are complex systems of interfacing components and highly regulated processes. This inherent complexity makes predicting outages from system dependencies very challenging. When outages do...
Resource Type:: Masters Thesis
Full Text:: Michael A. Castillo for the degree of Master of Science in Nuclear Engineering presented on December 6

Development of a synoptic map-pattern climatology to supplement current weather forecasting methods

Creator:: Frey, Melissa D. (Melissa Dawn)
Abstract:: Many meteorologists rely heavily on their experience of past weather events to supplement their forecasting tools, such as using past experience to help decide between conflicting numerical weather prediction models. Experiential knowledge is an important piece of forecasting, however it is highly subjective and variable from one forecaster to another....
Resource Type:: Masters Thesis
Full Text:: Methods Abstract approved: ______________________________________________ Michael H

Effect of constituent materials and curing methods on the abrasion resistance and durability of high performance concrete for pre-cast pre-stressed bridge deck slabs

Creator:: Keshari, Shweta
Abstract:: This thesis is the consequence of a research effort undertaken by the School of Civil and Construction Engineering at Oregon State University and funded by the Oregon Department of Transportation (ODOT) and the Federal Highway Administration (FHWA). The principal objective of the effort was to reduce the life cycle cost...
Resource Type:: Masters Thesis
Full Text:: : ________________________________________ Todd V. Scholz This thesis is the consequence of a research effort undertaken by the School of

Evaluating preconditioning options for the Jacobian-Free Newton Krylov Method applied to radiative transfer with matter coupling

Creator:: Myers, Nicholas T.
Abstract:: The objective of this thesis was to investigate the use of the Jacobian Free Newton Krylov Method (JFNK) with physics based preconditioning for solving coupled radiative transport and material energy balance. Modeling of these physics is important in inertial confinement fusion and other high energy density systems. In this thesis,...
Resource Type:: Masters Thesis
Full Text:: Coupling Abstract approved: Todd S. Palmer The objective of this thesis was to investigate the use of

Collaborative assessment and management of transboundary aquifers in North America

Creator:: Alvarez Tostado Delgado, Pablo
Abstract:: The Law of Transboundary Aquifers, introduced to the United Nations General Assembly in December 2008, encourages nations to make multilateral arrangements for the proper management of transboundary aquifers. This study seeks to answer the question: “What are the main challenges for successful collaboration in assessing and managing Transboundary Aquifer Systems...
Resource Type:: Masters Thesis
Full Text:: approved: ____________________________________________________________________ William Todd Jarvis

Assessing Several Modeling Approaches in Depletion Studies of a TRISO-Fueled Microreactor

Creator:: Hoffman, Keenan J.
Abstract:: The impact of MCNP6 depletion resolution on core lifetime is examined in the context of the Snowflake microreactor with explicit TRISO fuel. The change in core lifetime and iso- tope mass as a result of different tracked isotopes, timesteps, and spatial regions is discussed. Calculation speed of a prototype MCNP...
Resource Type:: Masters Thesis
Full Text:: approved: Todd S. Palmer The impact of MCNP6 depletion resolution on core lifetime is examined in the

Saving Darlingtonia: Pumping, Pollution, Public Participation, and Perceived Impacts to a Carnivorous Pitcher Plant: Darlingtonia State Natural Site, Florence, Oregon

Creator:: Grandy, Trevor J.
Abstract:: Oregon’s coast draws millions of visitors every year to witness the natural wonders of one the world’s most vibrant and publicly accessible areas where mountain forests meet sandy beaches and the sea. Communities along the Oregon coast are restricted to narrow stretches of developable land overlying sand deposits between the...
Resource Type:: Masters Thesis
Full Text:: , Oregon Abstract approved: ______________________________________________________ W. Todd

Taming the Tumalo : A Damned Dam Repurposed for Recharge

Creator:: Harpham, Kelsey
Abstract:: The Tumalo Project at Tumalo Reservoir in Central Oregon was proclaimed a failure almost as soon as it was completed. As the reservoir filled with water diverted from Tumalo creek in the spring of 1915, sinkholes developed in the reservoir floor and every last drop of captured water disappeared into...
Resource Type:: Masters Thesis
Full Text:: : Taming the Tumalo: A Damned Dam Repurposed for Recharge Abstract approved: William Todd Jarvis The

Predicting antineutrino source terms from a high temperature gas reactor

Creator:: Shaughnessy, Andra L.
Abstract:: Since the 1990s, researchers around the world have been creating antineutrino detectors for monitoring power reactors. These detectors have been deployed at light water reactors and are able to determine power levels and burn up throughout a fuel cycle. This technology could allow the IAEA to monitor LWRs remotely and...
Resource Type:: Masters Thesis
Full Text:: Antineutrino Source Terms from a High Temperature Gas Reactor Abstract approved: Todd S. Palmer Since the

Characterization of the onset of charged particle equilibrium for photon dose to skin

Creator:: Ryan, Michael C.
Abstract:: In the U.S., the Nuclear Regulatory Commission (NRC) is responsible for setting annual dose limits. For cases of hot particle contamination these limits are set at depths in skin of 7 mg/cm², 300 mg/cm², and 1000 mg/cm². However, at such shallow depths, the lack of charged particle equilibrium (CPE) precludes...
Resource Type:: Masters Thesis
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Predicting dose and cell survival distributions for brachytherapy sources

Creator:: Stringham, Michael J.
Abstract:: The focus of this thesis is to determine the biological impact of dose from brachytherapy sources commonly used in cancer treatment. To achieve this goal, the Monte Carlo code PENELOPE was used to simulate point sources of four different isotopes (¹⁰³Pd, ¹²⁵I, ¹³⁷Cs, and ⁹⁰Sr) in an infinite medium of...
Resource Type:: Masters Thesis

Alkali-silica reaction in concrete containing recycled concrete aggregates

Creator:: Adams, Matthew P.
Abstract:: Using recycled concrete aggregate (RCA) as a replacement for natural aggregate in new concrete is a promising way to increase the overall sustainability of new concrete. This has been hindered, however, by a general perception that RCA is a sub-standard material due to the lack of technical guidance, specifically related...
Resource Type:: Masters Thesis
Full Text:: ABSTRACT OF THE THESIS OF Matthew P. Adams for the degree of Master of Science in Civil Engineering

Downstream Rearing Chinook Salmon (Oncorhynchus tshawytscha) in the Upper Mainstem of the John Day River

Creator:: Scheu, Michael P.
Abstract:: Juvenile Chinook Salmon (Oncorhynchus tshawytscha) leave the natal reach at different times and move downstream at different rates which can increase their productivity by allowing them to utilize habitats on different temporal scales and spreading risk of localized stochastic events. This life history diversity can also allow fish to adapt...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Michael Patrick

Benchmarked simulation of antineutrino source terms for light water reactors during normal operation and diversion scenarios

Creator:: Somasundaram, Elanchezhian
Abstract:: Detection of reactor antineutrinos for non-proliferation applications has been researched extensively across the globe and is considered as a potential technology to remotely monitor reactor operations without any intrusions to reactor components. Reactor antineutrino detection experiments have been conducted in the past and have proven successful in detecting the changes...
Resource Type:: Masters Thesis
Full Text:: : _____________________________________________________________________ Todd S. Palmer Detection of reactor antineutrinos for non-proliferation applications has

To restore what once was : a mixed methods approach to understanding the shoe repair transaction

Creator:: Giulietti, Michael P.
Abstract:: The shoe repair transaction, as it occurs in the 5000 or so remaining shoe repair shops in the United States, is currently unexamined in academic literature for the significance it holds for either shoe repairers or their customers. Making use of both quantitative and qualitative methods of data collection, this...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Michael P

Extending the applicability of implicit Monte Carlo Diffusion : frequency dependence and variance reduction using the difference formulation

Creator:: Cleveland, Mathew A.
Abstract:: The intent of this work is to extend Implicit Monte Carlo Diffusion (IMD)[Gen. 2001] to account for frequency dependence and to incorporate the difference formulation[Szo. 2005] as a source manipulation variance reduction technique. This work shows the derivation of the probabilities and the associated proofs which govern the frequency dependent...
Resource Type:: Masters Thesis
Full Text:: Formulation. Abstract approved: Todd S. Palmer The intent of this work is to extend Implicit Monte Carlo

Investigation of a hybrid quasi-diffusion/Monte Carlo method for solving multigroup criticality problems in slab geometry

Creator:: Robinson, Bethany R.
Abstract:: A hybrid Quasi-diffusion/Monte Carlo Method for solving multigroup criticality problems in slab geometry was investigated. Analog Monte Carlo was used to calculate functionals (Eddington Factors) that were then used in solution of the quasi-diffusion equations. The hybrid method was shown to accurately and precisely predict the k-eigenvalue and fission source...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: Todd S. Palmer A hybrid Quasi-diffusion/Monte Carlo Method for solving multigroup

Forensic Hydrogeography : Assessing Groundwater Arsenic Concentrations and Testing Methods within the Harney Basin, Oregon

Creator:: Smitherman, Lauren L.
Abstract:: Harney County contains defining characteristics of regions containing arsenic within the groundwater such as its location in the western United States, unique closed basin geography, complex geology, and seasonal groundwater level fluctuations. Confirmation of arsenic concentrations above the Maximum Contaminant Level Drinking Water Standard of 10 μg/L has been observed...
Resource Type:: Masters Thesis
Full Text:: their properties. I would additionally like to acknowledge my advisor Dr. Todd Jarvis, my committee

Predicting Thermal Conductivity in Nuclear Fuels using Rattlesnake-Based Deterministic Phonon Transport Simulations

Creator:: Harter, Jackson R.
Abstract:: The Boltzmann transport equation derived in the Self-Adjoint Angular Flux (SAAF) formulation is applied to simulate phonon transport. The neutron transport code Rattlesnake is leveraged in this fashion, slightly modi ed to accept input from variables consistent with phonon transport simulations. Several benchmark problems are modeled to assess the potential...
Resource Type:: Masters Thesis
Full Text:: approved: Todd S. Palmer The Boltzmann transport equation derived in the Self-Adjoint Angular Flux (SAAF

Radiation health and safety of a radioisotope powered micro fuel cell

Creator:: Maloy, Kyle James
Abstract:: Radiation health and safety issues associated with a plutonium-powered radioisotope powered micro fuel cell (RMFC) were evaluated. The RMFC converts water into its component elements by radiolysis and the resultant hydrogen is used to power the fuel cell. This device is under development and is being considered for possible deployment...
Resource Type:: Masters Thesis
Full Text:: . Todd Palmer Radiation health and safety issues associated with a plutonium-powered radioisotope

Development of organocatalyzed, intramolecular heteroatom Michael addition and application towards alkaloid synthesis

Creator:: Carlson, Erik
Abstract:: Effective methods for the enantiopure formation of substituted piperidine rings are significantly important due to their presence in alkaloid products. A valuable method to form these ring systems would be via an intramolecular heteroatom Michael addition from the corresponding enone or enal. Described herein is a methodolgy that has been...
Resource Type:: Masters Thesis
Full Text:: Organocatalyzed, Intramolecular Heteroatom Michael Addition and Application Towards Alkaloid Synthesis

Impact of yeast present during pre-fermentation cold maceration on Pinot noir wine aroma

Creator:: Hall, Harper L.
Abstract:: This research investigated yeast populations and diversity during pre-fermentation cold maceration and alcoholic fermentation of Vitis vinifera L. cv. Pinot noir grapes from a commercial vineyard (Dayton, OR). Fermentations were conducted at the Oregon State University research winery in 100 L tanks while grapes from the same vineyard lot were...
Resource Type:: Masters Thesis
Full Text:: : ___________________________________________________________ James P. Osborne This research investigated yeast populations and diversity during pre

Observing the coastal ocean with HF radar

Creator:: O'Keefe, Sheila
Abstract:: Coastal-based high-frequency (HF) radar systems are an increasingly used tool for measuring surface currents in the coastal ocean. These systems provide a spatial and temporal resolution not achievable with other methods. Standard-range sites typically generate hourly maps of surface currents on a 2km grid extending approximately 50km from shore while...
Resource Type:: Masters Thesis
Full Text:: : ________________________________________________________ P. Michael Kosro Coastal-based high-frequency (HF) radar systems are an increasingly used

Ecological Forestry : A Critical Analysis

Creator:: Batavia, Chelsea
Abstract:: Although science is widely accepted as a fundamental source of information underlying decisions about forest management and conservation, considerably less attention has been paid to the inevitable role that normative values and beliefs play in such decisions. This thesis highlights the normative dimensions of "ecological forestry," a strategy of forest...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: ______________________________________________________ Michael P. Nelson

Effect of sensory properties and health information on consumer acceptance and purchase of colorful fresh market potatoes

Creator:: Wechsler, Linda J.
Abstract:: Potato varieties characterized by non-conventional skin and flesh colors (purple, red, yellow) have the potential to revitalize consumer demand for fresh market potatoes because of their unique appearance and health benefits. Red and purple potatoes contain anthocyanins, which are flavonoids responsible for red, blue, and purple pigments in plants. Yellow...
Resource Type:: Masters Thesis
Full Text:: : _____________________________________________________________________________ Michael T. Morrissey Potato varieties characterized by non-conventional skin and flesh

Modeling the Oregon State University TRIGA Reactor Using the Attila Three-Dimensional Deterministic Transport Code

Creator:: Keller, S. Todd
Abstract:: Attila is a state-of-the-art radiation transport based code that is efficient, accurate and straightforward to use. Geometric information is input to the code as CAD drawings. Material property information is input as a cross section library. The user has full control over standard transport options and output reports. In phase...
Resource Type:: Masters Thesis
Full Text:: ABSTRACT OF THE THESIS OF S. Todd Keller for the degree of Master of Science in Nuclear Engineering

Paving the way for terrestrial laser scanning assessment of road quality

Creator:: Chin, Abby
Abstract:: With the growing trend in use of 3D laser scanning technology for data collection, it is important to study the various potential applications of this revolutionary technology. One such application is the measurement of road roughness at both large and small scales. At larger extents, terrestrial laser scanning (TLS) is...
Resource Type:: Masters Thesis

Development of an improved system for Oregon to accurately quantify dense-graded hot mix asphalt pavement density

Creator:: Darra, Suraj
Abstract:: The Oregon Department of Transportation (ODOT) standard specifications require a minimum density for the construction of dense-graded hot mix asphalt (HMA) pavements. Currently, the standard specifications call for density measurements for quality control (QC) and quality assurance (QA) testing to be made using nuclear density gauges that are calibrated using...
Resource Type:: Masters Thesis
Full Text:: Asphalt Pavement Density. Abstract approved: ________________________________________ Dr. Todd V

Evaluation of ²³⁵U and ²³⁸U Fast Fission Product Yields from Godiva-IV Burst Irradiation via Gamma Detection

Creator:: Tamashiro, Aaron S.
Abstract:: During the past few decades, the U.S. Department of Energy (DOE) has made significant investments to improve nuclear data libraries, as the quality of this data impacts nearly all analyses of nuclear systems. Nuclear fission product yields are one component of these libraries, and are important for the analysis of...
Resource Type:: Masters Thesis
Full Text:: approved: Todd S. Palmer During the past few decades, the U.S. Department of Energy (DOE) has made

Performance of hybrid methods for representative nonproliferationproblems

Creator:: Bevill, Aaron M.
Abstract:: Adjoint-derived weight windowing is a hybrid deterministic/Monte Carlo method to simulate radiation transport. In adjoint-derived weight windowing, a deterministic adjoint solution is used to create weight windows for a Monte Carlo simulation. The intent of this work is to identify factors that reduce the Figure of Merit (FOM) of Monte...
Resource Type:: Masters Thesis
Full Text:: Methods for Representative Nonproliferation Problems. Abstract approved: Todd S. Palmer Adjoint-derived

Novel methods for crop load management of pear cultivars in the Pacific Northwest

Creator:: Arrington, Matthew A.
Abstract:: Novel approaches to crop load management of pear orchards in the Pacific Northwest (PNW) are necessary, but will need to vary according to the unique vegetative and reproductive growth habits of the cultivar. 'D'Anjou' is vigorous and non-precocious; thus, strategies to limit vigor and induce early fruiting are required. In...
Resource Type:: Masters Thesis
Full Text:: fruit weight was often reduced. Reduced fruit weight was not associated with mid-season Todd C

Extending the discrete maximum principle for the IMC equations

Creator:: Talbot, Paul W.
Abstract:: The implicit Monte Carlo (IMC) method [16] for radiative transfer, developed in 1971, provides numerical solutions to the tightly-coupled, highly-nonlinear radiative heat transfer equations in many physical situations. Despite its popularity, there are instances of overheating in the solution for particular choices of time steps and spatial grid sizes. To...
Resource Type:: Masters Thesis
Full Text:: Equations. Abstract approved: Todd S. Palmer The implicit Monte Carlo (IMC) method [16] for radiative

Groundwater Flooding and Guerrilla Trenches : a Participatory Approach for Flood Control

Creator:: Kemper, Joseph B.
Abstract:: Residents in South Falls City, a small town in the foothills of Oregon's Coast Range, battle intense flooding during the rainy season. Disagreements about surface water management pit neighbor against neighbor, but preliminary evidence suggests that groundwater flooding is an underlying cause. OSU researchers pair the emerging literature on groundwater...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ W. Todd Jarvis Residents in South Falls City, a small town in the foothills of Oregon’s

High Order Finite Elements SN Transport in X-Y Geometry on Meshes with Curved Surfaces in the Thick Diffusion Limit

Creator:: Woods, Douglas N.
Abstract:: The high-order finite element S[subscript N] transport equations are solved on several test problems to investigate the behavior of the discretization method on meshes with curved edges in X-Y geometry. Simpler problems ensured the correct implementation of MFEM, the general fi nite element library employed. A convergence study using the...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: Todd S. Palmer The high-order finite element SN transport equations are solved on

The iterative thermal emission Monte Carlo method for thermal radiative transfer

Creator:: Long, Alex R.
Abstract:: For over 30 years, the Implicit Monte Carlo (IMC) method has been used to solve challenging problems in thermal radiative transfer. These problems are typically optically thick and di ffusive, as a consequence of the high degree of "pseudo-scattering" introduced to model the absorption and reemission of photons from a...
Resource Type:: Masters Thesis
Full Text:: Monte Carlo Method for Thermal Radiative Transfer. Abstract approved: Todd S. Palmer For over 30

Steady State Modeling of the Minimum Critical Core of the Transient Reactor Test Facility

Creator:: Alberti, Anthony L.
Abstract:: With the advent of next generation reactor systems and new fuel designs, the U.S. Department of Energy (DOE) has identified the need for the resumption of transient testing of nuclear fuels. The DOE has decided that the Transient Reactor Test Facility (TREAT) at Idaho National Laboratory (INL) is best suited...
Resource Type:: Masters Thesis
Full Text:: Modeling of the Minimum Critical Core of the Transient Reactor Test Facility Abstract approved: Dr. Todd

Detection of actinides via nuclear isomer de-excitation

Creator:: Francy, Christopher J.
Abstract:: The detection of illicit weapons-grade nuclear material is a significant technical challenge receiving a great deal of attention in the nuclear community. A proposed solution is to actively bombard the material under investigation with neutrons, populating nuclear isomers in any potential fissile material. These isomers decay quickly, releasing gamma rays...
Resource Type:: Masters Thesis
Full Text:: : __________________________________________________________ Todd S. Palmer The detection of illicit weapons-grade nuclear material is a significant

Feasibility Study of Using HANARO Fuel Rods in WWR-SM Reactor

Creator:: Peguero, Lara M.
Abstract:: Interest in increased fuel supply stability has driven an investigation into possible alternate fuel for use in the WWR-SM research reactor at the Institute of Nuclear Physics in Uzbekistan. The WWR-SM is a high-power, pool-type research reactor currently utilizing IRT-4M fuel made by a single Russian supplier. A candidate for...
Resource Type:: Masters Thesis
Full Text:: Using HANARO Fuel Rods in WWR-SM Reactor Abstract approved: Todd S. Palmer Interest in increased fuel

Globalization of water resources : examining social learning using serious gaming

Creator:: Taha, Fatima A. M.
Abstract:: This study examined the Water Footprint Computer Assisted Board Game (WFCABG) as a tool for enhancing the social learning of water resources issues surrounding commodities trade. The study engaged 73 students from various countries and professional backgrounds, in two academic settings in two different countries: Oregon State University (United States)...
Resource Type:: Masters Thesis
Full Text:: _____________________________________________________________________ W. Todd Jarvis This study examined the Water Footprint Computer Assisted Board Game (WFCABG

Neutronic Analysis of a Liquid Metal Fast Reactor Experiment in the Large-I Position of the Advanced Test Reactor

Creator:: Lilley, Benjamin C.
Abstract:: Material testing experiments are needed to enable the next generation of nuclear fission reactors. Concluding in 2009, the Boosted Fast Flux Loop (BFFL) project was devised as a way to test fast reactor materials and fuels in the Advanced Test Reactor (ATR), however the experiment location it used is now...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: Todd S. Palmer Material testing experiments are needed to enable the next generation of

Initial performance assessment for implementation of hot mix asphalt containing recycled asphalt shingles in Oregon

Creator:: Samoo, Faisal Ahmed
Abstract:: This thesis documents the evaluation of the initial performance of pavement containing recycled asphalt shingles (RAS) in Oregon. The research was funded by the Oregon Department of Transportation (ODOT) and the Federal Highway Administration and was conducted at Oregon State University. The key objectives of this thesis are to document...
Resource Type:: Masters Thesis
Full Text:: : Todd V. Scholz This thesis documents the evaluation of the initial performance of pavement

Analysis of the antineutrino rate during CANDU reactor startup

Creator:: Matthews, Christopher
Abstract:: Detection systems used to monitor reactor operations are of significant interest as tools for verification of operator declarations. Current reactor site safeguards are limited to visual inspections and intrusive monitoring systems. The recent development of antineutrino detectors may soon allow real-time monitoring from an unobtrusive location. Antineutrinos are produced through...
Resource Type:: Masters Thesis
Full Text:: : _____________________________________________________________________ Todd S. Palmer Detection systems used to monitor reactor operations are of significant

Generation of Multigroup Multiband Cross Sections with Monte Carlo Simulations

Creator:: Lam, Adam Q.
Abstract:: This is the investigation into The generation of high-fidelity multigroup multiband cross sections from Monte Carlo neutron transport simulations. Previous methods for generating multigroup multiband (MGMB) cross sections, and multigroup cross sections, assume an approximate shape for the scalar flux. This approximate flux shape is the product of an energy-dependent...
Resource Type:: Masters Thesis
Full Text:: Multiband Cross Sections with Monte Carlo Simulations. Abstract approved: Todd S. Palmer A novel method

Pits, Politics, and People : Identifying Barriers to the Enhancement Reclamation of Floodplain Aggregate Mines in the Willamette Valley, OR

Creator:: Morrison, Elizabeth A.
Abstract:: Aggregate, which consists of crushed rock, sand, and gravel resources, is one of the most extracted resources in Oregon. Floodplain sites throughout the Willamette Valley -- particularly along the Willamette River -- are of particular importance because they produce high quality sand and gravel, located close to the aggregate market....
Resource Type:: Masters Thesis
Full Text:: Abstract approved: ______________________________________________________ Todd W. Jarvis

Incorporating statistical uncertainty into nuclear material diversion pathway analysis using probabilistic risk assessment

Creator:: Pharn, Benjamin T.
Abstract:: A Level 1 probabilistic risk assessment (PRA) is applied to a plutonium button-making process, but in regards to the risk of diversion (or theft) of special nuclear material (SNM) rather than the risk of mechanical failure. The main objective of the project was to identify the relative vulnerability of areas...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: Todd S. Palmer A Level 1 probabilistic risk assessment (PRA) is applied to a plutonium

Neutron transport benchmarks for binary stochastic multiplying media : planar geometry, two energy groups

Creator:: Davis, Ian M. (Ian Mack)
Abstract:: Benchmark calculations are performed for neutron transport in a two material (binary) stochastic multiplying medium. Spatial, angular, and energy dependence are included. The problem considered is based on a fuel assembly of a common pressurized water nuclear reactor. The mean chord length through the assembly is determined and used as...
Resource Type:: Masters Thesis
Full Text:: For Binary ochastic Multiplying Media: Planar Geometry, Two Energy Groups. Abstract approved: Todd S

Calculation of Pulse height distributions from deterministic transport simulations

Creator:: Benz, Jacob M.
Abstract:: In source-detector radiation transport simulations, pulse height distributions are a useful metric in assessing the effectiveness of nuclear instrumentation. In the area of spectroscopy, pulse height distributions are used to identify an unknown source. It is widely believed that pulse height distributions cannot be created using deterministic methods. This quantity...
Resource Type:: Masters Thesis
Full Text:: approved: _____________________________________________________________________ Todd S. Palmer

"Labor Market Situation for Syrian Refugees in Iraq" Case Study Arbat Refugee Camp - Kurdistan Region

Creator:: Mahmood, Aram
Abstract:: The Syrian civil war generated waves of refugees who flow into neighboring countries. These refugees have been creating excess supply of labor in host countries. This study involves a series of interviews in which respondents shared their perceptions of their involvement in the labor market in Iraq. These interviews provide...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: ______________________________________________________ Todd M. Pugatch The Syrian

Identification of economic, social, and policy factors influencing irrigation district participation in water transactions in the Deschutes Basin

Creator:: Whitman, Cally A.
Abstract:: Surface water in the Deschutes Basin of central Oregon has been largely over allocated since the early 1900s. Therefore, rapid population growth and urban demand for water in the upper Basin lead to an increased reliance on groundwater in the last three decades. The Oregon Department of Water Resources (OWRD)...
Resource Type:: Masters Thesis
Full Text:: support and guidance of my advisor, Dr. Todd Jarvis. You gave me the resources, ability and inspiration

Weed Management, Training, and Irrigation Practices for Organic Production of Trailing Blackberry : Plant Growth, Yield, and Nutrients

Creator:: Dixon, Emily K.
Abstract:: There is limited information available on production of trailing blackberry, particularly certified organic plantings, which are of interest to growers as there is increased consumer demand and a price premium over conventionally-produced fruit. Various production strategies were evaluated for their effect on yield, biomass production, carbon (C), and nutrient concentrations...
Resource Type:: Masters Thesis
Full Text:: Bryla, Dr. Todd Einhorn, and Dr. Michael Qian, for being willing to make time for me in their busy

Overcoming the level bubble : terrestrial laser scanning reference frame transformations

Creator:: Silvia, Evon P.
Abstract:: Terrestrial Laser Scanning (TLS) is an efficient, effective, and precise measurement tool rapidly growing in popularity in a wide variety of fields. Use of TLS data often requires aligning multiple scans for a more complete model of a scene or object, a procedure known as scan registration. Each scan setup...
Resource Type:: Masters Thesis

Advancements Toward the Simulation of Steel Structures in Fire Using OpenSees

Creator:: Gordon, James A.
Abstract:: Since the collapse of World Trade Center building number seven (WTC7), significant research has been done to understand the behavior of steel structures in fire and enable engineers to account for the behavior of steel framing systems exposed to fire during design. Despite these efforts, there are still significant barriers...
Resource Type:: Masters Thesis
Full Text:: impacts in my life which I will always be grateful for. I would like to thank Dr. Michael Scott and

A study of Myxobolus cerebralis in the Lostine River, Oregon : epizootiology, distribution and implications for resident and anadromous salmonids

Creator:: Sandell, Todd A.
Abstract:: Myxobolus cerebralis, a myxozoan parasite that infects almost all species of wild and cultured salmonids, was first identified in northeastern Oregon in the Lostine River in 1986. Fish that are heavily infected with M. cerebralis develop whirling disease, which was determined to be the cause of catastrophic declines in rainbow...
Resource Type:: Masters Thesis
Full Text:: Todd A. Sandell for the degree of Master of Science in

Feed-and-bleed transient analysis of OSU APEX facility using the modern Code Scaling, Applicability, and Uncertainty method

Creator:: Hallee, Brian Todd
Abstract:: The nuclear industry has long relied upon bounding parametric analyses in predicting the safety margins of reactor designs undergoing design-basis accidents. These methods have been known to return highly-conservative results, limiting the operating conditions of the reactor. The Best-Estimate Plus Uncertainty (BEPU) method using a modernized version of the Code-Scaling,...
Resource Type:: Masters Thesis
Full Text:: Todd Hallee for the degree of Master of Science in Nuclear Engineering presented on March 5, 2013

Toward end-user debugging of machine-learned programs

Creator:: Kulesza, Todd
Abstract:: The results of a machine learning from user behavior can be thought of as a program, and like all programs, it may need to be debugged. Providing ways for the user to debug it matters because without the ability to fix errors, users may find that the learned program’s errors...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Todd Kulesza for the degree of Master of Science in Computer Science

Urban development in coastal Oregon : discrete-choice estimation with spatial autocorrelation

Creator:: Todd, Maribeth
Abstract:: Development along the Oregon coast is continuing in areas that are known to be hazardous, in spite of strict zoning and other laws. The coast commonly sees erosion that can wash away cliffs and undermine structures as well as accretion that can bury houses in sand. However the much more...
Resource Type:: Masters Thesis
Full Text:: Maribeth Todd for the degree of Master of Science in Agricultural and Resource Economics presented on June

Transforming Protective Action Strategies for Radiological Emergencies—Exacting the Science of Sheltering-in-Place

Creator:: Smith, Todd R.
Abstract:: Radiological emergency plans ensure that protective actions can and will be taken in the event of an accident. Principle protective actions for the early phase of an emergency are evacuation and sheltering-in-place. While evacuations are generally safe, there are deterministic, long-term health consequences from prolonged displacement that outweigh the stochastic...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Todd Ryan Smith

For the Purpose of Power: An Analysis of George W. Bush’s Warrantless Wiretapping Address

Creator:: Owens, Michael V.
Abstract:: The purpose of this study is to examine the rhetorical efforts of President George W. Bush in defending his administration's warrantless wiretapping program. Specifically, the study attempts to determine the president's underlying motives when he defended the National Security Agency in a December 2005 radio address by applying Kenneth Burke's...
Resource Type:: Masters Thesis
Full Text:: ABSTRACT OF THE THESIS OF Michael V. Owens, Jr., for the degree of Master of Arts in Interdisciplinary

Non-native and native plant species distributions and variability along an elevation gradient in the Wallowa Mountains, Oregon

Creator:: Averett, Joshua P.
Abstract:: Invasion by non-native plants into natural areas is an important component of global change that threatens biodiversity and ecosystem structure and function. Mountains are currently among the least invaded ecosystems, however, these biodiversity hotspots are increasingly under threat of exotic plant invasion. Evaluation of plant species distribution patterns in mountain...
Resource Type:: Masters Thesis
Full Text:: OF Joshua P. Averett for the degree of Master of Science in Rangeland Science presented on June

Modifications to Rearing Environments as a Method for Reducing Domestication Selection in Hatchery-reared Steelhead (Oncorhynchus mykiss)

Creator:: Obley, Miriam
Abstract:: Since the decline of salmonid populations in the Pacific Northwest, supplementation programs have become frequently implemented by hatcheries as a way to protect and conserve wild stock. However, hatchery-reared fish have lower fitness than wild fish which is likely due to adaptation to the hatchery environment, i.e., domestication selection. Fish...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ Michael S. Blouin Since the decline of salmonid populations in the Pacific Northwest

A Dynamical Systems Approach to the Treatment of Psychosis

Creator:: Badeau, Ann Marie
Abstract:: The purpose of this paper is to explore the potential value of using a computer simulated systems dynamics model to address psychosis in mental illness. Psychosis is defined as a syndrome which is associated with many mental disorders, not a specific disorder itself. Psychosis generally produces delusions and hallucinations and...
Resource Type:: Masters Thesis
Full Text:: , then recovery rate is significantly enhanced (Huxley et al., 2000; Rucci, P., 2002; Sandra, S.M., 2002

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:: Abstract approved: Michael J. Olsen Straw wattles are common erosion control devices used to trap

Transboundary Water Institutions in Developing Countries : A Case Study in Afghanistan

Creator:: Malyar, Idrees
Abstract:: This study addresses the questions: 1) What kind of transboundary water management institution is needed for Afghanistan; and 2) what expertise is required for the institution and which stakeholders should be involved? The establishment of a transboundary water resources management institution/unit is an essential step for Afghanistan in order to...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: _____________________________________________________________________ Michael E

Effects of wildfire on growth and demographics of coastal cutthroat trout in headwater streams

Creator:: Heck, Michael P.
Abstract:: Wildfire is a largely terrestrial perturbation broadly recognized as an agent of disturbance and ecological change in forested biomes. Effects of post-fire conditions on biotic components of aquatic systems have been less well-documented, although hypothetically, the two are strongly connected. In fact, the influence of wildfire may be most profound...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Michael P. Heck for the

The dynamic shear moduli of blubber for selected large whale species

Creator:: Summers, Michael P.
Abstract:: Whale blubber is the insular tissue layer located between the dermis and the superficial fascia layer which sheathes the whale's musculature. It is made up of a lipid matrix ramified with strong, structural collagen and elastic fiber bundles, but little is known of its mechanical properties. Knowing these properties adds...
Resource Type:: Masters Thesis
Full Text:: Species AN ABSTRACT OF THE THESIS OF Michael P. Summers for the degree of Master of

Use of a model predictive control framework for optimal control of grid scale electrical energy storage in conjunction with a wind farm

Creator:: Antonishen, Michael P.
Abstract:: Over the last decade, wind penetration in the Pacific Northwest has increased rapidly. The variable nature of this massive new resource has increased stress on the hydropower resource to the point where system limits are currently being reached. In order to cultivate continued growth of the wind energy industry both...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Michael P. Antonishen for the degree of Master of Science in

Remote detection and predicted locations of NIPF fuel treatments in central Oregon

Creator:: Hall, Michael P.
Abstract:: Fire regimes across the western United States have been altered due to past land management and changing land use. Mitigating increased risks of wildfire occurrence in landscapes such as central Oregon requires landscape level management from both governmental and private organizations. Non-industrial private forest (NIPF) owners manage a relatively small...
Resource Type:: Masters Thesis
Full Text:: Treatments in Central Oregon AN ABSTRACT OF THE THESIS OF Michael P. Hall for the degree of

Characterization of Two Novel Machining Processes for Difficult to Machine Materials

Creator:: Doran, Michael P.
Abstract:: New materials with superior mechanical properties, such as increased strength and hardness, have been developed to allow for new and improved products. However, the mechanical properties that make these materials useful also makes them difficult to process using conventional methods. New machining processes need to be developed to generate products...
Resource Type:: Masters Thesis
Full Text:: THE THESIS OF Michael P. Doran for the degree of Master of Science in Mechanical Engineering

Evaluation of Materials for Use in Open-Cycle Magnetohydrodynamic Power Generation

Creator:: Bowen, Michael S.
Abstract:: Recent interest in oxy-fuel combustion for carbon capture, as well as advancements in technologies such as magnetics, materials, and computational modeling has sparked renewed interest in magnetohydrodynamic (MHD) power generation. The increased temperatures of oxy-fuel combustion versus air-fuel combustion poses a challenge in the selection of materials for plasma exposed...
Resource Type:: Masters Thesis
Full Text:: THE THESIS OF Michael S. Bowen for the degree of Master of Science in Mechanical Engineering

Utilizing Non-Saccharomyces Yeast As Bio-Protectants During Pre-Fermentation Cold Soaking Under Different Conditions

Creator:: Nichols, Melanie L.
Abstract:: Cold soaking is a technique used during red winemaking to alter the aroma, flavor, and phenolic content of a wine. However, cold soaking does not come without risk, as this process can result in the production of spoilage compounds such as acetic acid and ethyl acetate if excessive growth of...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ James P. Osborne Cold soaking is a technique used during red winemaking to alter the

Autobiography as image repair : an analysis of Sarah Palin's restoration strategies

Creator:: Canja, Elizabeth H.
Abstract:: The purpose of this study is to examine how autobiography functions as image restoration for a political candidate through the analysis of Sarah Palin's memoir, Going Rogue: An American Life. In particular, the study will identify and evaluate specific restoration strategies implemented by Palin in order to repair her image...
Resource Type:: Masters Thesis
Full Text:: : ________________________________________________________________________ Mark P. Moore The purpose of this study is to examine how autobiography functions as image

Use of fly ash in the mitigation of alkali-silica reaction in concrete

Creator:: Schwing, Kelsea
Abstract:: Alkali-silica reaction (ASR) is one of the leading causes of concrete deterioration throughout the world, and affects both structural and non-structural elements. Despite strong research efforts since its discovery by Stanton in the late 1930s, this deteriorating reaction is still not clearly understood nor are proper preventative measures effectively applied...
Resource Type:: Masters Thesis
Full Text:: appreciated. Dr. Kevin J. Folliard and Dr. Michael D.A. Thomas also helped me tremendously through

Hydrogeology and Hydrologic Connectivity of a Semiarid Central Oregon Rangeland System

Creator:: Caruso, Philip
Abstract:: The hydrologic function of a landscape is an important concept for understanding the presence, movement and availability of water. The Camp Creek Paired Watershed Study (CCPWS) site in Central Oregon has been utilized to investigate the impacts of western juniper on watershed hydrologic function since 1993. The research presented here...
Resource Type:: Masters Thesis
Full Text:: committee, Dr. Kevin Bladon, Dr. Gita Cherian, and Dr. Todd Jarvis, thank you for the advice and hours

A Hydrogeologic Framework for Understanding Watershed-Scale Surface Water and Groundwater Interactions in Western Oregon, USA

Creator:: Hall, Jesse L.
Abstract:: Stream water quality, including stream temperature, has become an increasingly important issue in recent years. Warming streams can harm aquatic ecosystems by pushing fish from traditional breading grounds, forcing them to migrate, adapt, or perish. Recent research from Scripps Institute of Oceanography at UC San Diego has shown that climate...
Resource Type:: Masters Thesis
Full Text:: . Carlos Ochoa, Dr. Todd Jarvis, Dr. Michael Campana, and Dr. Ricardo Mata Gonzalez for their exceptional

A preliminary assessment of hydrogeologic suitability for Aquifer Storage and Recovery (ASR) in Oregon

Creator:: Woody, Jen
Abstract:: An ASR metric and site rating index applied to over 120 municipal and agricultural locations across Oregon, combined with comparison to case study data from existing ASR sites, indicate that more than 50% of selected sites are hydrogeologically suitable for ASR. The ASR metric is a ratio of aquifer storage...
Resource Type:: Masters Thesis
Full Text:: vision, both from Corvallis and Spain. Dorthe Wildenschild, Todd Jarvis, Anita Grunder and John Selker

Reactor physics model of the Advanced Test Reactor using TRIGA® fuel through application of Serpent 2

Creator:: Lyons, Jennifer
Abstract:: The Advanced Test Reactor (ATR), under the Reduced Enrichment for Research and Test Reactors (RERTR) Program and the Global Threat Reduction Initiative (GTRI), is conducting feasibility studies for the conversion of its fuel from a highly enriched uranium (HEU) composition to a low enriched uranium (LEU) composition. These studies have...
Resource Type:: Masters Thesis

Infiltration and temperature characterization of a wastewater hyporheic discharge system

Creator:: Stewart, Ryan D.
Abstract:: The Clean Water Act imposes Total Maximum Daily Load (TMDL) limits on pollutant concentrations within wastewater effluent; in Oregon, thermal discharge is one of the pollutants subject to regulation. The City of Woodburn, Oregon, funded a series of pilot scale studies to investigate the utility of natural systems to reduce...
Resource Type:: Masters Thesis
Full Text:: , and Todd Scholz, as I feel very fortunate to have been surrounded by such bright, dedicated and

Commodification in an Ersu Tibetan village of Sichuan, China

Creator:: Schmitt, Edwin Anton
Abstract:: This ethnographic research aims to discover the implications of the commodification of production processes amongst the Ersu Tibetans of Sichuan, China. This thesis examines the commodification of Ersu agriculture and ethnic identity in the historical context of both China and the world-system. Ethnohistorical and ethnoecological methodologies are utilized to answer...
Resource Type:: Masters Thesis

The optimization of thin film p-CuO/n-ZnO heterostructures for use in selective gas detection

Creator:: Dandeneau, Christopher S.
Abstract:: Since bulk p-CuO/n-ZnO heterocontacts were first proposed for gas detection, rapid development has taken place in improving the overall functionality of these structures. While bulk heterocontacts have been shown to exhibit desirable sensitivity and selectivity characteristics, these devices suffer from innate diffusion and ZnO/CuO connectivity drawbacks that limit their effective...
Resource Type:: Masters Thesis
Full Text:: presented on August 27, 2008. Title: The Optimization of Thin Film p-CuO/n-ZnO Heterostructures for Use in

Influence of Biotic and Abiotic Factors on Yeast Communities during Cold Soak and the Consequences for Wine Aroma

Creator:: Johnson, Jared D.
Abstract:: Pre-fermentation cold soak is a winemaking technique used to alter the color, mouthfeel, and aroma of red wine. While it is still debated what impact cold soak has on these wine quality parameters, current thoughts are that resident yeast populations found in fresh grape must play a role in altering...
Resource Type:: Masters Thesis
Full Text:: : _____________________________________________________ James P. Osborne Pre-fermentation cold soak is a winemaking

Use of Organoleptic Methodologies to Evaluate Wine Oligosaccharides and Wines made from Grapevine Red Blotch Virus Positive Vines Subjected to Various Vineyard Management Practices

Creator:: Hoffman, Samuel
Abstract:: The human senses can be used as analytical tools to evaluate many different aspects of our daily lives. The use of our senses through organoleptic methods offers unique and powerful insights into the characteristics of different stimuli. Due to the unique function of the different sensory organs we use to...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: _____________________________________________________ James P. Osborne The

Feasibility Study of a Thermal Spectrum Thorium Breeder Reactor Without Chemical Reprocessing

Creator:: Keppen, Jackson D.
Abstract:: This thesis presents a feasibility study of a thorium fueled thermal spectrum breeder-burner reactor that operates without chemical reprocessing. Materials were evaluated for their potential as moderators using standard analytical methods. These materials were then used as moderators to evaluate criticality and enrichment in an infinite fuel pin lattice. The...
Resource Type:: Masters Thesis
Full Text:: : Camille J. Palmer Todd S. Palmer This thesis presents a feasibility study of a thorium fueled thermal

Impact of seasonal variation and growing environment on blackberry aroma

Creator:: Wang, Yuanyuan
Abstract:: Blackberries have been enjoyed for their delicious flavor and high nutritional value for hundreds of years. In North America, blackberries were cultivated since 1850-1860. Blackberries have their characteristic and unique aromas depending on the cultivar and growing conditions. The objective of this study was to evaluate the impact of seasonal...
Resource Type:: Masters Thesis
Full Text:: Seasonal Variation and Growing Environment on Blackberry Aroma Abstract approved: XT Dr. Michael

The Impact of Parasitic Copepod Salmincola Californiensis on Swimming Ability & Oxidative Burst Activity in Response to Stress in Juvenile Chinook Salmon

Creator:: Herron-Seeley, Crystal L.
Abstract:: Juvenile Chinook Salmon (Oncorhynchus tshawytscha) have a finite amount of energy that they can use to move from their riverine habitat to their oceanic habitat. Fish in the Willamette River Basin are prevented from moving to the ocean easily by dams which create reservoirs, where they reside for up to...
Resource Type:: Masters Thesis
Full Text:: energy an organism has: Where C is the ingested energy, P is energy put towards

Estimating the value of irrigation water transferred to instream flow : A case study of Umatilla County, Oregon

Creator:: Ugrinska, Monika P.
Abstract:: Agricultural water supplies are becoming increasingly uncertain in the western United States due to elevated demands from competing water users, environmental restrictions on surface water withdrawals as a result of the establishment of the Endangered Species Act in 1973, and potential climatic changes. Since many rural communities in the West...
Resource Type:: Masters Thesis
Full Text:: Abstract Approved: AN ABSTRACT OF THE THESIS OF Monika P

Production of SO₂ and SO₂ binding compounds by Saccharomyces cerevisiae during the alcoholic fermentation and the impact on wine lactic acid bacteria

Creator:: O'Neil, Allison L.
Abstract:: Malolactic fermentation (MLF) is important in the production of wines as it reduces acidity through the conversion of malic acid to lactic acid. However, successful MLF can be difficult to achieve due to yeast antagonism of the bacterium responsible for the secondary fermentation, Oenococcus oeni. In particular, yeast produced sulfur...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved:______________________________________________________ James P. Osborne

Impact of malolactic fermentation on red wine color and color stability

Creator:: Burns, Tresider R.
Abstract:: Malolactic fermentation (MLF) is an important step in the production of wines and is commonly performed in red or cool climate wines to reduce acidity. In this study the impact of MLF on red wine color and the ability of Oenococcus oeni to degrade compounds important to the development of...
Resource Type:: Masters Thesis
Full Text:: approved:______________________________________________________ James P. Osborne Malolactic

The Impact of Malolactic Fermentation Conducted by Oenococcus oeni on Brettanomyces bruxellensis Growth and Volatile Phenol Production

Creator:: Lauderdale, Adam D.
Abstract:: Wine is particularly vulnerable to infection by Brettanomyces bruxellensis during or shortly after malolactic fermentation (MLF). While different methods and techniques enable winemakers to prevent wine spoilage due to this organism, no single intervention is universally sufficient. Moreover application of sulfur dioxide, the most commonly used of these methods, is...
Resource Type:: Masters Thesis
Full Text:: Growth and Volatile Phenol Production Abstract approved: James P. Osborne Wine is

Impact of lees content, nitrogen, and elemental sulfur on volatile sulfur compound formation in Vitis vinifera L. cv. 'Pinot noir' wine

Creator:: Kraft, Daniel N.
Abstract:: One of the most common problems in wine production is the formation of hydrogen sulfide (H₂S) and other volatile sulfur compounds (VSCs), which can mask positive aromas at low concentrations and result in unpleasant aromas such as rotten egg, cabbage, garlic, and rubber at higher concentrations. Despite the large body...
Resource Type:: Masters Thesis
Full Text:: :______________________________________________________ James P. Osborne One of the most common problems in wine production is the formation

Adversarial planning by strategy switching in a real-time strategy game

Creator:: King, Brian D.
Abstract:: We consider the problem of strategic adversarial planning in a Real-Time Strategy (RTS) game. Strategic adversarial planning is the generation of a network of high-level tasks to satisfy goals while anticipating an adversary's actions. In this thesis we describe an abstract state and action space used for planning in an...
Resource Type:: Masters Thesis
Full Text:: : Adversarial Planning by Strategy Switching in a Real-Time Strategy Game Abstract approved: Alan P. Fern We

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