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Filtro per: Degree Name Master of Science (M.S.) Cancella il filtro Degree Name: Master of Science (M.S.) Non-Academic Affiliation Oregon State University. Graduate School Cancella il filtro Non-Academic Affiliation: Oregon State University. Graduate School

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Influences of the duration of periodic sway on the stem form development of four-year-old Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco)

Creatore:

Carlton, Ronald Roy

Abstract:

Stem form development of trees in response to wind has been established in the literature to be a response to stem sway induced by the wind. The response is manifested in modifications to height and diameter growth which strengthen the stem against wind stresses. Experiments in the literature show that...

Resource Type:

Masters Thesis
Controlling water temperatures with buffer strips

Creatore:

Brazier, Jon Roger

Abstract:

Buffer strips have been proposed as a method for controlling temperature changes in streams adjacent to clear-cuttings. Nine small mountain streams in Oregon's Coast Range and Cascade Mountains were studied to determine the influence of buffer strips on water temperature. Timber volume in the strip, strip width, and canopy density...

Resource Type:

Masters Thesis
Soil engineering properties and vegetative characteristics for headwall slope stability analysis in the Oregon coast range

Creatore:

Bransom, Mark

Abstract:

Six headwalls in the central Oregon coast range were selected for study of soil engineering properties and vegetativecharacteristics important for analysis of slope stability. The headwalls were considered representative of those which would be candidates for timber leave areas due to geomorphic and topographic features, including steepness of slope and...

Resource Type:

Masters Thesis
The geography of the apple industry of the Chelan Valley, Washington

Creatore:

Detering, Floyd John

Abstract:

The Chelan Valley is one of several valleys located on the eastern slope of the Cascade Mountains contributing to the leadership of Washington in apple production. Since the nature of the activity in the Chelan Valley is typical of all these producing areas,it was selected as a case study of...

Resource Type:

Masters Thesis
Assessing the knowledge of county extension agents on geotextile applications for agricultural practices in Oregon and Idaho

Creatore:

Brown, Linda Lee

Abstract:

The purpose of the study was to assess county extension agents' knowledge of geotextiles; to determine their current level of information and their location on an adoption-diffusion curve; and to determine the agents' attitudes toward the potential use of geotextiles in agriculture, specifically in soil erosion control. A questionnaire was...

Resource Type:

Masters Thesis
Surface-subsurface geology of the middle to upper Eocene sedimentary and volcanic rock units, western Columbia County, northwest Oregon

Creatore:

Berkman, Thomas Anthony

Abstract:

The middle to upper Eocene Tillamook Volcanics form the basement in the Rock Creek - Rocky Point area. These tholeiitic to alkalic basalts, basaltic andesites, and andesites were erupted as shield volcanoes seaward of the strandline ontop of an older deep-marine mudstone unit (Yamhill Formation) and an accreted portion of...

Resource Type:

Masters Thesis
Geology of the Antone district of Wheeler County, Oregon

Creatore:

Dobell, Joseph Porter

Abstract:

The area studied in detail, known as the Antone District, is located in the southeast corner of Wheeler County, Oregon, , between longitude 119 37. and 119°54 east, and latitude 44°23 and 44°3O' north. Surface elevations range from 3050 feet above sea level in the northeast corner of the district,...

Resource Type:

Masters Thesis
A thermal hydraulics analysis of a molybdenum production element for implementation in TRIGA reactors

Creatore:

Byfield, Patrick

Abstract:

The metastable isotope of technetium-99 (Tc-99m) is an important diagnostic tool used in the field of nuclear medicine due to the isotope's 6.0 hour half-life, 140.5 keV γ-decay mechanism, and multiple oxidation states [1,2]. Approximately 70% of the world’s nuclear medicine procedures involve the use of Tc-99m [3]. The conventional...

Resource Type:

Masters Thesis
An integrated assembly tolerance analysis system

Creatore:

Qian, Xiaonong

Abstract:

Tolerance analysis and synthesis plays a vital role in the success of a product design because it directly affects product quality and manufacturing cost. It also affects manufacturing process selection and planning. This research provides a review of several commonly used assembly tolerance analysis models and evaluation of their limitations....

Resource Type:

Masters Thesis
Optimization of interactive live free viewpoint multiview video streaming bandwidth

Creatore:

Kramer, Richard A.

Abstract:

There are generally two types of multiview video:(1) 3D Multiview Video (“3D MVV” also called “2D plus delta” or “stereo” multi-view video): 3D MVV is widely deployed in cinemas and in the TV industry. 3D MVV typically entails capturing video of an object using two cameras with differing view angles...

Resource Type:

Masters Thesis
How male undergraduates cope with body dissatisfaction

Creatore:

Staffileno, Thomas M.

Abstract:

This study explores the narratives of male undergraduate students and their experiences with body dissatisfaction. The inquiry utilizes a constructivist epistemology and a qualitative design in order to best understand previous and current experiences of individuals who have reflected upon their body image as part of their identity. To gather...

Resource Type:

Masters Thesis
Measuring Electron Activity to Constrain the Role of Soil Structure in the Formation of Biogeochemical Heterogeneity

Creatore:

Wanzek, Thomas

Abstract:

Soils have a critical role in global carbon (C) cycling, containing one of the largest fast-cycling carbon stocks on earth. Robust representation of soil organic matter dynamics in Earth System Models is critical for future climate prediction. Current C cycling models assume that all C cycling in non-hydric (i.e. ‘upland’)...

Resource Type:

Masters Thesis
The Occurrence of Coastal Sea Ice Leads and their Impact on the Beaufort Gyre

Creatore:

Lewis, Benjamin J.

Abstract:

Leads are long fractures wide enough for a ship to travel through the ice pack. Sea ice acts as a barrier between the ocean and the atmosphere, whereas leads allow the transfer of heat and moisture between the two. Leads play a role for marine mammals and are hunting grounds...

Resource Type:

Masters Thesis
Adoptive Transfer of Purified Hematopoietic Stem Cells Protects Against Bone Loss Following Lethal Radiation

Creatore:

Deyhle, Richard Thomas, Jr.

Abstract:

The objectives of this research is to advance human health by evaluating interventions to minimize the detrimental effects of acute whole body gamma irradiation on bone metabolism, bone architecture and bone reconstruction using a mouse model. Total body irradiation (TBI) followed by adoptive transfer of bone marrow from donor animals...

Resource Type:

Masters Thesis
Design Automation for 3D Circuits

Creatore:

Velayati, Mohammad

Abstract:

Traditional electronic systems are usually fabricated via printed circuit boards (PCBs). In a regular PCB, the electronic components are placed and mounted on a two-dimensional board. Such a component layout limits the freedom in the component placement process which results in larger electronic devices. With the use of Additive Manufacturing...

Resource Type:

Masters Thesis
Characterization of pathogenic and non-pathogenic Vibrio parahaemolyticus strains and the antimicrobial activity of fruit juice and fruit extracts against seafood pathogens

Creatore:

Du, Jingyi

Abstract:

Vibrio parahaemolyticus is frequently isolated or detected from raw seafoods, especially shellfish. Also, Listeria monocytogenes, Salmonella spp. are pathogens that are frequently found in ready-to-eat (RTE) seafood, such as smoked fish and shellfish, seafood salad, cooked shrimp and crabmeat, and seafood consumed raw. Two studies to improve safety in RTE...

Resource Type:

Masters Thesis
Drivers of Soil Fungal Communities Across Three Tropical Rainforests in Panama

Creatore:

Schappe, Tyler

Abstract:

Fungi play critical roles in ecosystem processes and interact with plant communities in mutualistic, pathogenic, and commensal ways. Fungal communities are thought to be influenced by both associated tree communities and soil properties. However, the relative importance of the biotic and abiotic drivers of soil fungal community structure and diversity...

Resource Type:

Masters Thesis
A Comprehensive Evaluation of the Nonvolatile Chemistry Affecting the Sensory Bitterness Intensity of Highly Hopped Beers

Creatore:

Hahn, Christina

Abstract:

The range of different nonvolatile constituents extracted from hops in highly hopped beers suggests that iso-alpha acids may not be the sole contributor to beers’ bitterness. Among brewers producing hop-forward beer styles there is a growing concern that the Bitterness Unit (BU) is no longer an accurate predictor of beer...

Resource Type:

Masters Thesis
Co-planar integration of silicon integrated circuits and microﬂuidic networks for biosensor applications

Creatore:

Lindsay, McKay W.

Abstract:

Silicon integrated circuit (IC) technology has enabled numerous electrical and optical sensors used in biological and chemical assays, where they can increase performance while decreasing cost and size compared to traditional detectors. There is signiﬁcant potential to further leverage IC technology for lab-on-chip applications, creating aﬀordable and portable medical diagnostic...

Resource Type:

Masters Thesis
Local and Regional Patterns in Eelgrass (Zostera marina L.) Communities Along an Upwelling-Productivity Gradient in Oregon Estuaries, USA

Creatore:

Motley, Jennifer

Abstract:

In this thesis, I investigate the organization of eelgrass (Zostera marina L.) and mesograzer communities across local and regional scales in three upwelling- influenced estuaries located along the Oregon coast, USA. Eelgrass ecosystems are an important source of primary production in estuarine systems, providing numerous ecosystem services, including nursery habitat...

Resource Type:

Masters Thesis
Nutritional Composition Changes in Alaska Pollock (Gadus chalcogrammus) During and Between Bering Sea A and B Seasons

Creatore:

Hintermeister, Clara A.

Abstract:

Alaska pollock (Gadus chalcogrammus) is a schooling whitefish native to the Bering Sea that is prized for its fillets, surimi, roe, and milt. Fillets are frequently used for popular products such as fish and chips. If collected, roe and milt are commonly exported to South Korea and Japan. However, no...

Resource Type:

Masters Thesis
Phylogenetic Identification of Pathogenic and Endophytic Fungal Populations in West Coast Douglas-fir (Pseudotsuga menziesii) Foliage

Creatore:

Daniels, Hazel A.

Abstract:

Douglas-fir provides social, economic, and ecological benefits in the Pacific Northwest (PNW). In addition to timber, forests support abundant plant and animal biodiversity and provide socioeconomic viability for many rural communities. Products derived from Douglas-fir account for approximately 17% of the U.S. lumber output with an estimated value of $1.9...

Resource Type:

Masters Thesis
Canopy microclimates and epiphytes : Examining dynamic patterns and influences

Creatore:

Heffernan, Elise

Abstract:

Old-growth forests are structurally complex in both vertical and horizontal dimensions. This complexity arises from biological characteristics, typically branch and leaf structure, but also includes epiphytes with varying form and function. I characterized the biomass and species composition of epiphytes along the vertical axis of an old-growth Douglas-fir (Pseudotsuga menziesii)...

Resource Type:

Masters Thesis
Implementation Techniques for Variational Data Structures

Creatore:

Meng, Meng

Abstract:

Many applications require not only representing variability in software and data, butalso computing with it. To do so efficiently requires variational data structures thatmake variability explicit in the underlying data and the operations used to manipulate it.Variational data structures have been developed ad hoc for many applications, but thereis little...

Resource Type:

Masters Thesis
Interactions between Oenococcus oeni and Brettanomyces bruxellensis during winemaking and consequences for wine quality

Creatore:

DuBois, Aubrey E.

Abstract:

The growth of Brettanomyces bruxellensis is a major cause of wine spoilage due tothe production of the volatile phenols 4-ethylphenol (4-EP) and 4-ethylguaiacol (4-EG), derivatives of p-coumaric acid and ferulic acid. During the winemaking process,some microorganisms can impact the concentration of the 4-EP precursors pcoumaricand coutaric acid (tartaric acid-esterified p-coumaric...

Resource Type:

Masters Thesis
Status and habitat use of California bighorn sheep on Hart Mountain, Oregon

Creatore:

Kornet, Christine Anne

Abstract:

California bighorn sheep (Ovis canadensis californiana) were studied on Hart Mountain, Oregon, during the summer and fall of 1976, and the spring of 1977. The population consisted of a minimum of 196 sheep in June, 1977. The high number of lambs observed and high lamb:ewe ratios throughout both years of...

Resource Type:

Masters Thesis
An evaluation of culverts on low volume forest roads in the Oregon Coast Range

Creatore:

Piehl, Bradley T.

Abstract:

WRRI 106 is placeholder for the research findings of Project No. G-928-03 funded by U.S. Dept. of the Interior, Geological Survey. Findings are available in Piehl, Bradley T. (1986) An evaluation of culverts on low volume forest roads in the Oregon Coast Range (Masters Thesis, Oregon State University. Forest Engineering)...

Resource Type:

Masters Thesis
Particulate Trace Metal Fluxes in the Western Arabian Sea and Their Links to Marine Productivity

Creatore:

Flannery, Kelly M.

Abstract:

Many trace elements (e.g., Zn, Cd, Mo) are essential phytoplankton micronutrients, making them crucial to the marine ecosystem and ultimately the carbon cycle. Because of this association trace metals are also utilized in paleoceanographic studies (e.g., Mo, Cd). However, not much is known about what controls the cycling of these...

Resource Type:

Masters Thesis
An Evaluation of the Complex Age Progression along the Cook-Austral Islands Using High-resolution ⁴⁰Ar/³⁹Ar Incremental Heating Ages

Creatore:

Rose, Joanna

Abstract:

The Cook-Austral island chain has been the center of debate for many years. Contrary to the classical hotspot hypothesis, this volcanic island chain does not exhibit a linear age progression with a single node of active volcanism, but instead shows evidence of young volcanism at several points along the chain....

Resource Type:

Masters Thesis
Delay Performance Evaluation of the IEC 61850 Standard in Power Transmission Substations

Creatore:

Safdar, Salman

Abstract:

Substations are a crucial element at the transmission and distribution level of electric power systems. The primary substation equipment (power transformers and high voltage switching equipment) is used to transfer and transform electric energy by stepping up or down the voltage in transmission substations. Secondary equipment (such as IEDs, Intelligent...

Resource Type:

Masters Thesis
Autonomous in situ measurements of estuarine surface PCO₂ : instrument development and initial estuarine observations

Creatore:

Wall, Colleen McKay

Abstract:

A novel, low-cost instrument capable of measuring surface water PCO₂ was designed for use in dynamic, shallow-water environments. The instrument was tested in the Yaquina River Estuary, a macrotidal estuary known to experience a wide range of conditions ranging from dominance by the coastal ocean during summer upwelling to substantial...

Resource Type:

Masters Thesis
Surface water variation and water storage potential in Upper Klamath Basin, 2000-2012

Creatore:

Tanner, Andrew M.

Abstract:

With too many demands placed on too little water, the Klamath Basin and itsresidents - human and otherwise - are in dire need. There exists a significant opportunityfor mitigation in the purposeful conversion of seasonal wetlands to permanent wetlandsmanaged to increase baseline water storage levels in the Upper Basin. A...

Resource Type:

Masters Thesis
Insights from stable isotope dynamics into the sensitivity of larval Pacific oysters to ocean acidification

Creatore:

Brunner, Elizabeth Lev

Abstract:

Larvae of the Pacific Oyster, Crassostrea gigas, at Whiskey Creek Shellfish Hatchery (WCH) in Netarts Bay, Oregon, are negatively impacted by high-CO₂ water and exposure during the initial shell formation period appears to be particularly damaging. To investigate the mechanism of this early susceptibility, several cohorts of larvae at WCH...

Resource Type:

Masters Thesis
Modeling Arctic melt ponds using a resolved ice model with GCM forcing

Creatore:

Collins, Lee E.

Abstract:

The albedo of Arctic sea ice depends greatly on the formation of melt ponds. These ponds form in depressions on the ice as surface snow melts during the summer months, and their location is determined mainly by the initial snow topography. Using a high resolution sea ice model forced with...

Resource Type:

Masters Thesis
Structure, abundance, and distribution of pelagic zooplankton in a deep, oligotrophic Caldera Lake

Creatore:

Karnaugh, Elena N.

Abstract:

From July 1985 to April 1987 the pelagic zooplankton community of Crater Lake, Oregon was studied to determine taxonomic structure, absolute and relative densities, and spatial and temporal distributional patterns. Samples were collected using vertically-towed zooplankton nets. The community structure consisted of two cladoceran and nine rotifer species, which were...

Resource Type:

Masters Thesis
A Demand System Analysis of Marketing Strategies for Apples and Pears in the Conventional Supermarket Environment

Creatore:

McFetridge, Marc V.

Abstract:

This research examines how marketing strategies of produce managers affect consumer expenditures for fresh apples and pears. The objective of this study is to determine how display size, point-of-purchase material, product origin, product information and display placement impact consumer expenditures for fresh apples and pears. These variables were incorporated into...

Resource Type:

Masters Thesis
Model for the prediction of nail withdrawal stiffness

Creatore:

Atherton, Jon C.

Abstract:

An important factor affecting the strength and ultimate load of wood structures is the strength, stiffness and durability of its joints. Therefore, the behavior of nailed joints must be given proper consideration when designing and analyzing wood structures. Presently,formulas for determining the strength of nailed joints under withdrawal loads, as...

Resource Type:

Masters Thesis
Management effects on nitrogen nutrition and long-term productivity of western hemlock stands : an exercise in simulation with FORCYTE

Creatore:

Sachs, Donald

Abstract:

Regression equations applicable to biomass components of standsof western hemlock [Tsuga heterophylla (Raf.) Sarg.} were developedby destructive sampling of a thinned and an unthinned stand ofwestern hemlock near Seaside, Oregon. Equations predicted more live-branchbiomass and less dead-branch biomass per tree for the thinnedstand, but equations for biomass of foliage, twigs,...

Resource Type:

Masters Thesis
Surface and subsurface geology of the Camarillo and Las Posas Hills area, Ventura County, California

Creatore:

Jakes, Mary Clare

Abstract:

Surface and subsurface data are combined to determine the structure of the western half of the Simi fault system in the Las Posas and Camarillo Hills area. Cretaceous to Eocene sedimentary rocks, present only in the subsurface, are overlain by late Eocene to early Miocene nonmarine stata (Sespe Formation) and...

Resource Type:

Masters Thesis
A GIS study of Benton County, Oregon, groundwater : Spatial distributions of selected hydrogeologic parameters

Creatore:

Miles, Evan S.

Abstract:

Benton County has experienced substantial growth in the past 30 years, and is expected to continue growing (BCWP 2008). Continued development has occurred in the Willamette Valley, housing development in the nearby hills of the Coast Range is growing. New houses in the foothills of the Coast Range may not...

Resource Type:

Masters Thesis
Sequent occupance study in Fauquier County, Virginia

Creatore:

Finkl, Charles William

Abstract:

The problem of this thesis is the existence of an anomalous manorial landscape in northern Fauquier County, Virginia. The county is about 45 miles southwest of Washington, D. C. The thesis seeks to develop a hypothesis to explain the existence of this landscape so different from surrounding areas in a...

Resource Type:

Masters Thesis
A correction factor of ring-necked pheasant sex ratios for application in census methods

Creatore:

Gubser, Cecil Ennis

Resource Type:

Masters Thesis
A study of stream temperature using distributed temperature sensing fiber optics technology in Big Boulder Creek, a tributary to the Middle Fork John Day River in eastern Oregon

Creatore:

Arik, Aida D.

Abstract:

The Middle Fork John Day Basin in Northeastern Oregon is prime habitat for spring Chinook salmon and Steelhead trout. In 2008, a major tributary supporting rearing habitat, Big Boulder Creek, was restored to its historic mid-valley channel along a 1 km stretch of stream 800 m upstream of the mouth....

Resource Type:

Masters Thesis
The development and application of benthic classifications for coral reef ecosystems below 30 m depth using multibeam bathymetry : Tutuila, American Samoa

Creatore:

Lundblad, Emily Ruth

Abstract:

Coral reef ecosystems are the most diverse on earth, and their subsistence is being threatened by natural and adverse anthropogenic patterns and processes. In an effort to understand and protect these marine environments, several programs have outlined strategies and initiatives. For example, the United States Coral Reef Task Force’s Mapping...

Resource Type:

Masters Thesis
An analysis of subject matter used in teaching the management of time and money in college home management courses

Creatore:

Nelson, Myrtle Sarah Lydia

Resource Type:

Masters Thesis
Structure and stratigraphy of the Little Sheep Creek area, Beaverhead County, Montana

Creatore:

Sadler, R. Kumbe

Abstract:

The Middle and West Forks of Little Sheep Creek in the southern Tendoy Range have incised valleys across Cenozoic structural features exposing strata that range in age from the Mississippian to the Neoene. Paleozoic strata are 1,349 m thick and belong to the Mission Canyon Limestone, the Big Snowy, Amsden,...

Resource Type:

Masters Thesis
Photonic Sintering of Nanoparticle Inks : Experimental Characterization, Computational Modeling and System Design for Additive Manufacturing

Creatore:

MacNeill, William D.

Abstract:

Photonic sintering of nanoparticles is a relatively new process for sintering of nanoparticles, deposited on a substrate, into functional solid structures. The working principle of this process is the incidence of large-area broad-spectrum light onto deposited nanoparticles, which results in heat generation in the nanoparticles and their subsequent densification. Key...

Resource Type:

Masters Thesis
Characterizing the Plant-Associated Symbionts, Rhodococcus and Agrobacterium

Creatore:

Fuller, Skylar L.

Abstract:

Symbioses are a spectrum of interactions between organisms living in closeassociation. These intimate interactions range from mutualism, in which bothorganisms benefit, to parasitism, where one organism benefits at the expense ofthe other. Horizontal gene transfer is the acquisition of genes independent ofvertical transmission and demonstrably promotes the transition of bacteria...

Resource Type:

Masters Thesis
The Soundcheck of the Sea : Comparing Marine Soundscapes on a Continental Scale

Creatore:

Haver, Samara M.

Abstract:

Monitoring marine ambient sound using standardized methods supports assessments of ocean sound levels across widespread ecosystems. This thesis quantifies differences among coastal and deep-water marine soundscapes in the Atlantic and Pacific oceans. The sources of sound in a soundscape are compartmentalized into three components and compared over time and among...

Resource Type:

Masters Thesis
The preparation and human taste detection of low degree of polymerization glucose oligomers

Creatore:

Pullicin, Alexa J.

Abstract:

There is growing evidence that humans and other animals can taste certain starch hydrolysis products, namely, maltooligosaccharides (MOS), and that their detection is independent of the known sweet receptor, T1R2 T1R3. The overall goal of this study was to further investigate the taste perception of low degree-of-polymerization (DP) MOS in...

Resource Type:

Masters Thesis
Properties of hydrogels for immobilization of bacteria in a commercial microfluidic dioreactor

Creatore:

Weymann, Davis

Abstract:

Current technological shortcomings limit the economic viability of capturing and utilizing small sources of methane. The development of a reactor to overcome these limitations would unlock economic opportunity and incentivize reduced methane emissions. A microfluidic bioreactor containing immobilized methanotrophs has the potential to overcome these limitations by profitably converting small...

Resource Type:

Masters Thesis
Effect of Regulated Deficit Irrigation on Malbec and Syrah Grape and Wine Quality

Creatore:

Yuan, Xiaoxi

Abstract:

The water status of grape vine throughout the growing season is a primary determinant of vine vigor and berry composition. The concentrations of volatile compounds and precursors in grape berries are highly influenced by viticultural practices. Imposing a water deficit on the vine during berry development is an important vineyard...

Resource Type:

Masters Thesis
Robotic deburring

Creatore:

James, Francis

Abstract:

Deburring of machined parts is a crucial task in the aerospace and automotive industry. This process is still performed manually to a large extent due to the unpredictability of burr formation as well as the complex interactions between the human arm and the workpiece. Poor ergonomics, repetitive stress and strain...

Resource Type:

Masters Thesis
Development of an Integrated Generator Power Take-of Strategy using Model Predictive Control (MPC) for Ocean Wave Energy Conversion

Creatore:

Sundaram, Srinivasan Subhash

Abstract:

Model Predictive Control (MPC) has previously been investigated on ocean waveenergy converters (WEC) to improve the amount of power captured, while respectingthe system constraints. Previous research done in the same area, focused onbuilding a control scheme by using the knowledge of the past & current statesof the system and predicting...

Resource Type:

Masters Thesis
Analysis of Learning Schemes for Power Systems Secure Control

Creatore:

Lassetter, Carter

Abstract:

As the future electrical power systems tend towards smarter and greener technology, thedeployment of self-sufficient networks, or microgrids, becomes more likely. Microgridsmay operate on their own or synchronized with the main grid, thus control methodsneed to take into account islanding and reconnecting said networks. Isolation of subnetworks may be necessary...

Resource Type:

Masters Thesis
Examination of Photochemical Water Treatment by SolarBags

Creatore:

White, Robert E.

Abstract:

Inadequate access to clean water is an ongoing problem in many developing areas of the world. In developed nations, it is important to plan for access to clean water following natural disasters. In situations without reliable access to electricity and chemical treatment methods, there is a need for an inexpensive...

Resource Type:

Masters Thesis
Event detection with forward-backward recurrent neural networks

Creatore:

Ghaeini, Mohammad Reza

Abstract:

Automatic event extraction from natural text is an important and challenging task for natural language understanding. Traditional event detection methods heavily rely on manually engineered rich features. Recent deep learning approaches alleviate this problem by automatic feature engineering. But such efforts, like tradition methods, have so far only focused on...

Resource Type:

Masters Thesis
Moving towards sustainability and increasing user safety by improving performance of RAP mixtures and developing a network-level decision-making tool for pavement maintenance

Creatore:

Haddadi, Sogol Sadat

Abstract:

Due to a general reduction in pavement program funding levels over the past decade, the current budget is not sufficient to maintain roadways at a high level of service with acceptable roughness levels. Rough roadways with poor ride quality increase drivers’ vehicle operating costs (fuel consumption, vehicle maintenance, and tire-wear)...

Resource Type:

Masters Thesis
Bi-level flexible-robust optimization for energy allocation problems

Creatore:

Biswas, Arpan

Abstract:

A common problem in energy allocation problems is managing the trade-off between selling surplus energy to maximize short term revenue, versus holding surplus energy to hedge against future shortfalls. For energy allocation problems, this surplus represents resource flexibility and is quantified as the surplus energy after meeting the demand. The...

Resource Type:

Masters Thesis
Value and evaluation : a case study of interdisciplinary green infrastructure continuing professional education trainings

Creatore:

Johnson, Christine M.

Abstract:

The practice of green infrastructure is synonymous with collaborative partnerships. Expertise from engineers, land care professionals, planners, and natural resource consultants are often required for successful project implementation. Traditionally, these professionals perform their responsibilities in their disciplinary “silos,” but this evolving area of sustainable development is creating a demand for...

Resource Type:

Masters Thesis
An analysis of training methodologies for deep visual trackers

Creatore:

Fiez, Trevor

Abstract:

This thesis considers the problem of training convolutional neural networks for online visual tracking. A major challenge for single object visual tracking is that most training sets with frame-level track annotations are quite small, due to the prohibitive cost of manual annotation. Current training approaches either supplement the annotations with...

Resource Type:

Masters Thesis
Exploring the constraints of the use and management of school forests in South Korea

Creatore:

Hong, Hyun Jung

Abstract:

School forests in South Korea are trees and vegetation areas within schoolyards, and they provide natural environments for schools and neighborhoods. After the Korea Forest Service (KFS) and local governments create these school forests, the management of school forests transfers to the host schools. Some studies suggest that experiences with...

Resource Type:

Masters Thesis
Riparian forest health on the northern Great Plains

Creatore:

Alveshere, Brandon C.

Abstract:

River impoundment by dams, along with other human driven changes, has threatened the health of riparian forests in the northern Great Plains for much of the last century. Two major concerns in the region are the impediment of natural recruitment of plains cottonwood (Populus deltoides Marsh. subsp. monilifera (Ait.) Eckenw.)...

Resource Type:

Masters Thesis
Effect of Shape on Nanoparticle Sintering: A Molecular Dynamics Study

Creatore:

Mirkoohi, Elham

Abstract:

Sintering of nanoparticles to create films and patterns of functional materials is emerging as a key manufacturing process in applications like flexible electronics, solar cells and thin-film devices. Further, there is the emerging potential to use nanoparticle sintering to perform additive manufacturing as well. While the effect of nanoparticle size...

Resource Type:

Masters Thesis
Douglas-fir Seedlings in the Pacific Northwest: The Genetics of Drought Adaptation

Creatore:

Celer, Erda

Abstract:

Douglas-fir (Pseudotsuga menziesii) is a widely distributed, ecologically important, and commercially valuable tree species in North America. However, climate change is expected to adversely impact Douglas-fir trees, and assisted migration may become necessary to lessen the effects of climate change. Because drought stress is one of the projected effects of...

Resource Type:

Masters Thesis
The Inhibitory Activity of Essential Oil Constituents Against Clostridium perfringens Type A Isolates

Creatore:

Alanazi, Saud

Abstract:

C. perfringens type A isolates are the causative agents of C. perfringens type A food poisoning (FP) and non-food-borne (NFB) human gastrointestinal diseases. In this study, we evaluated the antimicrobial effect of essential oil constituents (cinnamaldehyde, eugenol, allyl isothiocyanate (AITC), and carvacrol) against C. perfringens FP and NFB isolates grown...

Resource Type:

Masters Thesis
Time-Dependent Crack Growth Mechanisms in Alloy 617 at 800°C in Air

Creatore:

Addison, Dylan, A.

Abstract:

Time-dependent crack growth mechanisms in Alloy 617 at 800°C in air were studied using compact tension samples machined in the L-T direction, cracked at temperature using an induction furnace and servo-hydraulic load frame. The application of different loading waveforms, including triangular, hold time, and sustained loading, were studied with relation...

Resource Type:

Masters Thesis
The relationship of full day kindergarten, children's self-regulation, and early academic achievement

Creatore:

Alonso, Jessica, G.

Abstract:

Strong self-regulation skills can predict academic success in early childhood contexts, specifically for math and literacy skills, thus laying the foundation for future success (McClelland & Cameron, 2012; McClelland & Ponitz, 2011). Children’s exposure to increased instructional time in school through programs such as full day kindergarten (FDK) has also...

Resource Type:

Masters Thesis
Youth Recruitment and an Aging Workforce : A Pilot Study of Intergenerational Family Business in Oregon’s Commercial Fishing Industry

Creatore:

Caracciolo, Deanna E.

Abstract:

Commercial fishing is a culturally and economically significant industry on the Oregon coast. The importance of this industry to human communities is often neglected in fisheries research, with economic and ecological data being favored by managers and decision makers. Recent observations in many coastal communities have indicated aging of fishermen...

Resource Type:

Masters Thesis
Surfing the Cascadia Subduction Zone: Risk perceptions and evacuation knowledge among Oregon surfers

Creatore:

Shelby, Daniel

Abstract:

Evacuation strategies have been established for most user groups in tsunami inundation zones; however, surprisingly little information is available for a growing visitor group - surfers. For near-shore tsunami events, Oregon surfers, who recreate in the nearshore region, must make life or death choices when deciding what to do in...

Resource Type:

Masters Thesis
Temporal Variation in Humpback Whale (Megaptera novaeangliae) Demographics Along the Western Antarctic Peninsula

Creatore:

Pallin, Logan J.

Abstract:

Humpback whale populations in Antarctica are recovering after intensecommercial whaling in the 20th century. Along the Western Antarctic Peninsula (WAP)this recovery is occurring in an environment that is experiencing the fastest warming ofany region on the planet. To begin to understand the dynamics of this recovery undersuch dramatic climate change,...

Resource Type:

Masters Thesis
Cultural post-adoption services and cigarette smoking for Korean-American transracial adoptees

Creatore:

Partipilo, Christopher

Abstract:

Over the past several decades, American families have adopted thousands of children from outside of the United States. A large percentage of international adoptions come from South Korea (Selman, 2012). Transracial Korean-American adoptees must navigate circumstances unique to their situations as individuals with a birth culture and an adoptive culture...

Resource Type:

Masters Thesis
Why wolves? An analysis of private organization decision making in filing citizen suitsunder the Endangered Species Act

Creatore:

Lundgren, Matthew

Abstract:

The Endangered Species Act is hailed as the “gold standard” of species conservation legislation both in the U.S. and globally. There are scarce conservation funds that we as a society can spend on the recovery of endangered species, so it is important to understand how the parties involved with this...

Resource Type:

Masters Thesis
A tool to support conceptual change : identifying methods to ensure employee satisfaction along Lean implementation

Creatore:

Grijalva, Paola E.

Abstract:

To address several challenges faced in healthcare, the Triple Aim (3A) was targeted by institutions to improve health outcomes and patient experience while reducing the costs of health. Process improvement techniques in manufacturing, such as Lean systems, were applied as tools to achieve the 3A framework. Unfortunately, the high level...

Resource Type:

Masters Thesis
Risk of work-related musculoskeletal disorders among surgeons: comprehensive question pool development and a pilot study

Creatore:

Kia, Kiana

Abstract:

Work-related musculoskeletal disorders (WMSDs) are prevalent among surgeons due to a variety of risk factors. Various subjective tools have been used to investigate the associations between these risk factors and their contributions to the development of WMSDs. This study aimed to provide a summary of a collection of popular subjective...

Resource Type:

Masters Thesis
Fuel Treatments of Ponderosa Pine (Pinus ponderosa) in the Blue Mountains of Eastern Oregon : A Mycorrhiza Perspective

Creatore:

Hart, Benjamin T. N.

Abstract:

Over the course of the last century, a successful history of fire suppression has contributed to unsuccessful present day control over wildfire. In the absence of fire and the janitorial and ecological services it provides, drier inland forests are shifting in species composition and exceeding densities that cannot survive and...

Resource Type:

Masters Thesis
Species Distribution Modeling of Citizen Science Data as A Classification Problem with Class-Conditional Label Noise

Creatore:

He, Liqiang

Abstract:

Species distribution models (SDM), which quantify the correlation between the distribution of a species and environmental factors, are increasingly used to map and monitor animal and plant distributions in the context of awareness of environmental change and its ecological consequence. For perfect data, this is a straightforward classification problem from...

Resource Type:

Masters Thesis
The Behavioral Responses of Western Toad (Anaxyrus boreas) Larvae to Simultaneous Stressors

Creatore:

Reynolds, Emily R.

Abstract:

Animals can be naturally exposed simultaneously to multiple stressors. These include habitat changes, contaminants, diseases, invasive species, parasitism, and predation. Exposure to various combinations of biotic and abiotic stressors may induce behavioral changes that affect the way an individual interacts within its environment.Like other groups of organisms, amphibians are exposed...

Resource Type:

Masters Thesis
Phytophthora ramorum within an Oregon tanoak forest : quantifying inoculum within canopy throughfall vs. soil splash

Creatore:

Benemann, Silvia, E.

Abstract:

Phytophthora ramorum continues to cause extensive mortality of tanoaks in southwestern Oregon. Rain readily washes inoculum down through the canopy, causing new infections on the lower parts of the tree and neighboring host plants. Although this aspect of dispersal is well understood, the relative importance of infested soil and leaf...

Resource Type:

Masters Thesis
Fighting to Cooperate: Litigation, Collaboration, and Water Management in the Upper Deschutes River Basin

Creatore:

Satein, Hannah R.

Abstract:

Communities across the American West face new challenges in water management: historical management structures devised to prioritize economic uses, predominantly agriculture, are being tasked with adapting to address growing and changing populations, unaddressed species and ecosystem needs, and climatic changes. Scholars in the field of collaborative governance posit that collaborative...

Resource Type:

Masters Thesis
On the Structure of Unconditional UC Hybrid Protocols

Creatore:

Shirley, Morgan

Abstract:

Two parties, Alice and Bob, hold inputs x and y respectively. They wish to compute a function f of their inputs. In an ideal world, f(x, y) could be calculated by sending the inputs to a trusted third party. In the absence of such a third party, Alice and Bob...

Resource Type:

Masters Thesis
Assessing durability of reinforced concrete and ductile iron

Creatore:

Shields, Silas A.

Abstract:

The first goal of this master’s thesis was to investigate the linkage between a non-destructive testing method, surface resistivity, and premature concrete deterioration brought on by chloride ingress and or freeze-thaw cycling. The experimental method for this project consists of taking surface resistivity measurements of reinforced concrete slabs after they...

Resource Type:

Masters Thesis
Sibling relationships and college decision-making : An exploratory study of first-generation and non-first-generation students

Creatore:

Warner, Danielle A.

Abstract:

Decisions about college are significant in the lives of students and their families, especially since these are often the first major life-decisions that adolescents are able to make largely on their own (Galotti, 1995; Galotti & Mark, 1994). It is widely recognized that family history plays a role in whether...

Resource Type:

Masters Thesis
Classifying and Synthesizing 3D Shapes of Objects using Deep Neural Networks

Creatore:

Xu, Xu

Abstract:

Reasoning about 3D shape of objects is important for successful computer visionapplications in robotics, 3D rendering and modeling. In this thesis, we address twoproblems { First, given an image, we generate 3D shape of the foreground object thatappears in the image. Second, we predict the class label of the input...

Resource Type:

Masters Thesis
A Permanent-Magnet Linear Generator Wave Energy Converter for Low Power Ocean Sensors

Creatore:

Miles, Lillian F.

Abstract:

Renewable energy sources are becoming increasingly important due to their low environmental impact and limitless nature. This thesis explores the design of a 250 mW permanent magnet linear generator wave energy converter to power ocean sensors. While many wave energy converters exist, this is a unique application because the wave...

Resource Type:

Masters Thesis
Observational Study of Buffered Bike Lane Design Implementation of Roadway Bicycling in Portland, Oregon

Creatore:

Rios, Elizabeth A.

Abstract:

Bicyclists are one of the highest and most vulnerable road users. This is due to the higher likelihood of being seriously injured when involved in a crash. This research seeks to understand two different behavioral interactions of an implemented facility user: the motorist (secondary user) and bicyclist (primary user). The...

Resource Type:

Masters Thesis
Developing a Standard to Assess Water Repellency and Dimensional Stability of Preservative Treated Railroad Ties or Other Large Timbers

Creatore:

Trebelhorn, Daniel B.

Abstract:

Untreated wood is inherently hygroscopic and moisture content variations can have substantial effects on dimensional stability leading to the development of deep surface checks that further enhance moisture uptake and ultimately encourage deterioration. The horizontal exposure of wood crossties makes water repellency and dimensional stability particularly important in railroad applications....

Resource Type:

Masters Thesis
Dynamic Composite Load Signature Detection and Classification using Supervised Learning over Disturbance Data

Creatore:

Tray, Kelly

Abstract:

Load modeling that can accurately represent the dynamic behavior of generators and loads is important in the operation and planning of transmission and distribution systems. Yet, it is a complex subject in power system research communities and electric utilities. The composition of the end-use loads is changing continually based on...

Resource Type:

Masters Thesis
The Effects of Tank Structure and Egg Size on the Production of Wild Steelhead (Oncorhynchus mykiss) Surrogate Fish

Creatore:

Self, Katharine E.

Abstract:

One of the biggest hurdles for a juvenile salmonid (Oncorhynchus mykiss) is migrating downstream from freshwater spawning grounds to the ocean. Juveniles from wild broodstock were reared from the South Santiam River for more than 1 year at the Oregon Hatchery Research Center (OHRC) in Alsea, OR. The fish were...

Resource Type:

Masters Thesis
Exploring the factors that drive organizational resilience : lessons from healthcare

Creatore:

Darrow, Lucia

Abstract:

In the face of a disruptive event or prolonged period of stress, resilient performance ischaracterized by preventative measures, effective response, and the integration of lessonslearned. In healthcare, resilience significantly affects patient safety. However, currentguidelines for healthcare performance assessment, such as the Triple Aim, do notconsider physician satisfaction and preventative measures...

Resource Type:

Masters Thesis
Evaluation of the predictive capability of two-phase flow maps for microchannel condensation of R-134a at low mass flux conditions

Creatore:

VanderPutten, Michael A.

Abstract:

Predicting condensation flow regimes and the associated heat transfer and pressure drop in microchannels is critical for designing terrestrial and space systems for heating, cooling, power generation, and advanced manufacturing. It is well established that in flows approaching the microscale (Dh < 1 mm) gravity-dominated flow regimes become less relevant,...

Resource Type:

Masters Thesis
Fine scale foraging behavior of gray whales in relation to prey fields and vessel disturbance along the Oregon Coast

Creatore:

Sullivan, Florence A.

Abstract:

The desire to understand the spatial and temporal drivers of animal behavior and distribution relative to scale is central to movement ecology. Optimal foraging theory states that a predator should continue exploiting a patch until it is no longer profitable to do so. As human developments increasingly encroach on the...

Resource Type:

Masters Thesis
Natural-color maps via automated coloring of bivariate grid data

Creatore:

Darbyshire, Jane E.

Abstract:

Natural ground color is useful for reference maps as well as maps where a realistic representation of the Earth's surface matters. Natural color schemes are less likely to be misinterpreted, as opposed to hypsometric color schemes, and are generally preferred by map readers. The creation of natural-color maps was once...

Resource Type:

Masters Thesis
Shocks and Awe : Damping Selection in Racecars to Maximize Grip

Creatore:

Takaro, Trevor M. F.

Abstract:

This thesis covers the use of a quarter car model to select damping rates for aFormula Student (FS) car, focusing on minimizing vertical tire force variation to improvegrip. A 2 degree of freedom (DOF) quarter car model is cycled over the road frequenciesof interest and the results compared with the...

Resource Type:

Masters Thesis
Does the Matrix Matter? Using Radio Frequency Identification (RFID) Technology to Examine Hummingbird Movements in Fragmented Tropical Landscapes

Creatore:

Jackson, Evan R.

Abstract:

There is increasing evidence that the type of land cover surrounding remnant patches of native habitats (the ‘matrix’) can modify effects of landscape change on biodiversity; thus the traditional idea of dichotomous habitat and non-habitat following island biogeography theory is insufficient in complex landscapes. Matrix type can have dramatic influences...

Resource Type:

Masters Thesis
Tool of Engagement Measurement to Propel Academic Success of Students

Creatore:

Bird, Justine C.

Abstract:

Student engagement is key for learning in the classroom, and different levels of engagement have led to greater learning. The ICAP framework distinguishes these different levels of engagement by different overt behaviors, but little is known about how to measure different forms of engagement in the classroom. This article will...

Resource Type:

Masters Thesis
Routes to Certification and Turnover Intentions of Early Career Wisconsin Agriculture Teachers

Creatore:

Claflin, Kellie

Abstract:

The purpose of this study was to discover the routes to certification and turnover intentions of Wisconsin agriculture teachers with fewer than three years of experience teaching agriculture. The study also evaluated the relationship between the routes to certification and turnover intentions. A census of all Wisconsin agriculture teachers with...

Resource Type:

Masters Thesis
Habitat Use of Female Columbian Black-tailed Deer in Western Oregon

Creatore:

Schrautemeier, Timothy J.

Abstract:

Columbian black-tailed deer (Odocoileus hemionus columbianus) are important economically, ecologically, and culturally as an indigenous species in western Oregon. Oregon Department of Fish and Wildlife (ODFW) observed declines in black-tailed deer populations since the late 1980’s and attributes these declines to reduction in quality and availability of habitat, following the...

Resource Type:

Masters Thesis
Gender differences in robot teleoperation

Creatore:

Showkat, Dilruba

Abstract:

Gender issues have recently received increased attention in human robot interaction (HRI). Because robots are becoming part of our homes and daily lives, it is important to understand how different groups of people use them. To the best of our knowledge, almost no research has been done that investigates gender...

Resource Type:

Masters Thesis
Comprehensive Analysis of PM2.5 Pollution from Construction Activities

Creatore:

Montadka, Nahush Prabhakar

Abstract:

The Construction industry is one of the most hazardous industries in the US.Construction workers, on a daily basis, are exposed to numerous risks while performing arange of activities involving construction, alteration, and or repair. Dust and diesel exhaustemissions from construction equipment are considered harmful to the workers in the longrun....

Resource Type:

Masters Thesis

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Academic Affiliation

Fisheries and Wildlife724
Chemistry600
Electrical Engineering and Computer Science490
Electrical and Computer Engineering432
Food Science and Technology402
altri Academic Affiliations »

Advisor

Cox, George B.120
Dimick, R. E.76
Schreck, Carl B.49
Wager, John F.48
Appleby, Arnold P.45
altri Advisors »

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1909 to 2018

View distribution

Unknown 1

Committee Member

Liu, Huaping49
Tadepalli, Prasad39
Marcum, Wade31
Brekken, Ted30
Doescher, Paul29
altri Committee Members »

Creator

Arents, Chester Abbo2
Bakke, Paul D.2
Callaway, Edward Cleveland2
Cao, Weidong2
Cheung, Chi Ming2
altri Creators »

Date

Date range begin – Date range end

Current results range from 1909 to 2017

View distribution

Decade

2000-20092,079
1990-19992,102
1980-19892,029
1970-19791,832
1960-19691,790
1950-19591,069
1940-1949592
1930-1939477
1920-192999
1910-191954
altri Decade »

Degree Field

Electrical and Computer Engineering743
Mechanical Engineering576
Chemistry574
Civil Engineering551
Oceanography443
altri Degree Fields »

Degree Level

Master's14,155

Degree Name

Master of Science (M.S.)[remove]14,155

Formato

application/pdf537
image/jpeg15
pdf6
application/zip3
application/msword1
altri Formatos »

Language

English [eng]14,155
German [ger]1

License

All rights reserved3,545
Public Domain Mark 1.05
Apache 2.01

luogo

Oregon, Oregon, United States, (Administrative Boundary)5
H J Andrews Experimental Forest, Oregon, United States, (Vegetation)3
Willamette River, Oregon, United States, (Hydrographic)3
Corvallis, Oregon, United States, (Populated Place)2
Malheur, Oregon, United States, (Administrative Boundary)2
altri luogos »

Non-Academic Affiliation

Oregon State University. Graduate School[remove]14,155
Oregon State University. Sea Grant College Program4

Peer Reviewed

No13,297

Tipo di risorsa

Masters Thesis14,155

Rights Statement

Copyright Not Evaluated9,803
In Copyright4,221
No Copyright - United States131

Soggetto

Douglas fir113
Heat -- Transmission60
Herbicides57
Industrial arts -- Study and teaching57
Home economics -- Study and teaching43
altri Soggettos »

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