Index Catalog // ScholarsArchive@OSU

Multivariate Vegetation Mapping -- Code and Data

Creator:: Henderson, Emilie B.
Abstract:: This data set contains RCode designed for mapping correlated vegetation summary variables via univariate (modified random forest regression) and multivariate (random forest nearest neighbor) methods. It also contains a small vegetation plot dataset to illustrate the type of information needed to support such an analysis.
Resource Type:: Dataset

Drivers and Impacts of a Recent Annual Grass Invasion: Ventenata dubia and Fire in the Inland Northwest

Creator:: Tortorelli, Claire M.
Abstract:: Biological invasions threaten native biodiversity, alter ecosystem function, and are a major cause of economic losses across the planet. The most impactful invaders alter disturbance regimes and initiate state shifts to outside the historical range of variability of the ecosystem. Concern for ecological and economic losses has prompted a rapid...
Resource Type:: Dissertation

Lipid Profile in Pinot Noir Wine: Contributions to Taste and Mouthfeel Perception, Impacts of Winemaking Techniques, and Potential Use As Markers for Identifying Wine Origin

Creator:: Phan, Quynh K.
Abstract:: Wine taste and mouthfeel are essential factors that determine consumer acceptance, consumer preference, and wine quality. The three taste descriptors, sweet, sour, and bitter, are well understood and routinely appearing in wine sensory. In contrast, information related to mouthfeel sensations is still relatively limited. Winemakers have worked hard to craft...
Resource Type:: Dissertation

Investigation of Hot-Air (HA) Drying Conditions and Shell Cracking Mechanism and Development of Radio-Frequency (RF) Dielectric Heating for Ensuring Quality and Reducing Shell Cracking of Oregon Hazelnuts (Corylus avellana L.)

Creator:: Wang, Wenjie
Abstract:: Oregon produces 99% US hazelnuts (Corylus avellana L.), occupying 3% world production. To ensure the quality and food safety of hazelnuts (inshells or kernels), industry and federal standards require freshly harvested nuts to be cleaned and dried to reach a final moisture content (MC) of inshells < 10%, MC of...
Resource Type:: Dissertation

Use of herbal feed additives in poultry feeding

Creator:: Nix, Kathryn
Abstract:: The use of an antibiotic as a growth promoter (AGP) began in the 1940’s with the discovery of growth responses from Streptomyces aureofaciens in the monogastric diet. However, resistance and residue problems have increased the negative consumer perception of growth promoting antibiotic use in animal diets. Although no direct link...
Resource Type:: Masters Thesis

Techno-economic analysis of algal lipid fuels

Creator:: Xiang, Xuwen
Abstract:: A techno-economic analysis (TEA) was performed to evaluate the technology, cost, and resource use for algal biofuel production based on today’s economics and technology. The basic goal of this study is to develop a model to calculate the mass and energy balances and costs to produce 10 million gal of...
Resource Type:: Masters Thesis

The NRF2-controlled Antioxidant Response, Alternative Forages, and Selenium supplementation for Improving Ruminant Productivity and Health

Creator:: Ford, Hunter
Abstract:: Oxidative dysfunction can affect dairy animals during periods of heightened stress, particularly during the transition from pregnancy to lactation and during diseases, such as intramammary infection (IMI), and can contribute to increased inflammation, immune dysfunction, and cell death. As such, methods for ameliorating oxidative stress and restoring redox regulation may...
Resource Type:: Dissertation

Techno-economic and Life-cycle Analyses of Glucosamine and Lipid Production from Marine Diatom Cyclotella sp.

Creator:: Xiang, Xuwen
Abstract:: Currently the production of biofuel from algae is not economically competitive with petroleum fuel. However, co-production of high-value products may be able to justify the cost of large-scale algae cultivation. The basic goal of this study is to develop a techno-economic analysis (TEA) and Life-cycle assessment (LCA) for the production...
Resource Type:: Dissertation

Relationship between parasite load and diet quality in two desert bighorn sheep metapopulations in southern California

Creator:: Gibson, Sarah
Abstract:: The increased severity of unseasonal drought conditions in the American Southwest have resulted in herbivorous species, like the desert bighorn sheep (Ovis canadensis nelsoni), receiving lower quality forage in their diet at less reliable frequency. The Mojave Desert and the Peninsular Mountain ranges also contain large variations in elevation, which...
Resource Type:: Honors College Thesis
Full Text:: /10.1002/jwmg.21169 Buchalski, M.R., Sacks, B.N., Gille, D.A., Penedo, M.C.T., Ernest, H.B., Morrison

Ammonia and nitrate nitrogen transformations in semi-arid soils of northeastern Oregon

Creator:: Damsky, Leon Joseph
Resource Type:: Masters Thesis
Full Text:: Ammonia nitrogen was determined by placing a knom wei eJlt of soil into a Kjeldahl flask, adding the

ScholarsArchive@OSU

Multivariate Vegetation Mapping -- Code and Data

Drivers and Impacts of a Recent Annual Grass Invasion: Ventenata dubia and Fire in the Inland Northwest

Lipid Profile in Pinot Noir Wine: Contributions to Taste and Mouthfeel Perception, Impacts of Winemaking Techniques, and Potential Use As Markers for Identifying Wine Origin

Investigation of Hot-Air (HA) Drying Conditions and Shell Cracking Mechanism and Development of Radio-Frequency (RF) Dielectric Heating for Ensuring Quality and Reducing Shell Cracking of Oregon Hazelnuts (Corylus avellana L.)

Use of herbal feed additives in poultry feeding

Techno-economic analysis of algal lipid fuels

The NRF2-controlled Antioxidant Response, Alternative Forages, and Selenium supplementation for Improving Ruminant Productivity and Health

Techno-economic and Life-cycle Analyses of Glucosamine and Lipid Production from Marine Diatom Cyclotella sp.

Relationship between parasite load and diet quality in two desert bighorn sheep metapopulations in southern California

Ammonia and nitrate nitrogen transformations in semi-arid soils of northeastern Oregon

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