Index Catalog // ScholarsArchive@OSU

Parameter Estimation within a Kinematic Magnetohydrodynamics Framework

Creator:: Rajbhandari, Evan, Gibson, Nathan L., and Woodside, C. Rigel
Abstract:: We discuss the well-posedness of the forward problem for the magnetohydrodynamic system with the inclusion of the ion-slip parameter. We also demonstrate the convergence of a parameter estimation scheme. Focusing on power-generation, we implement and the validate a numerical model with an engineering multi-physics software, COMSOL, using ideal-power equations. We...
Resource Type:: Preprint
Full Text:: function 1σ is also essentially positive and bounded, and achieves a minimum value of 1||σ||L∞(D) implying

Quantifying uncertainty with stochastic collocation in the kinematic magentohydrodynamic framework

Creator:: Rajbhandari, Evan, Gibson, Nathan L., and Woodside, C. Rigel
Abstract:: We discuss an efficient numerical method for the uncertain kinematic magnetohydrodynamic system. We include aleatoric uncertainty in the parameters, and then describe a stochastic collocation method to handle this randomness. Numerical demonstrations of this method are discussed. We find that the shape of the parameter distributions affect not only the...
Resource Type:: Preprint
Full Text:: . Let the spatial domain be given by D ⊂ R3, open with compact closure, and denote the boundary as ∂D

Stochastic Collocation Error Analysis Within a Kinematic Magnetohydrodynamics Framework

Creator:: Rajbhandari, Evan, Gibson, Nathan L., and Woodside, C. Rigel
Abstract:: We explore one numerical method for dealing with uncertainty quantification, stochastic collocation. We adapt this method for the uncertain kinematic magnetohydrodynamic system. We then demonstrate well-posedness of the uncertain forward problem. We also describe the method in detail, and perform an error analysis of the method, describing the necessary assumptions...
Resource Type:: Preprint
Full Text:: ) × L∞+ (D), i.e. for each ω ∈ Ω, assume σ, βe, and βi are positive and bounded. Then there exist unique

How Can We Help Individuals Experiencing Homelessness? Assessing Resource Strengths and Needs from First-Hand Accounts

Creator:: Pivec, Mikayla
Abstract:: The goal of my thesis is to (a) help reveal to the Corvallis community who comprises this local population and (b) to share with local resource agencies what potential gaps are present from the perspectives of the homeless individuals who call Corvallis home. We interviewed eight (8) individuals who have...
Resource Type:: Honors College Thesis
Full Text:: : _____________________________________________________ Kelly D. Chandler The goal of my thesis is to (a) help reveal to the Corvallis

Assessing variation in coyote (Canis latrans) diet across three sagebrush steppe sites with different levels of juniper encroachment

Creator:: Kendall, Zachary D.
Abstract:: Juniper (Juniperus spp.) encroachment into the sagebrush steppe ecoregion is one of the main causes of sagebrush degradation and can alter the understory vegetative community by outcompeting native shrubs and grasses, which reduces the available forage and cover for small mammals. Coyotes (Canis latrans) are generalist, omnivorous predators in the...
Resource Type:: Honors College Thesis
Full Text:: . S. Boyd, J. L. Beck, J. D. Bates, T. J. Svejcar, and M. A. Gregg. 2011. Saving the sagebrush sea

Winning through Compromise? An Examination of Bipartisanship and Electability

Creator:: Ellingson-Cosenza, Elena J.
Abstract:: In America’s polarized politics, the language that congresspeople use matters. This thesis examines the use of bipartisan communications—in tweets and press releases—of members of the US House of Representatives as an electoral strategy for representatives in districts of varying competitiveness. A linear regression was conducted to analyze the relationship between...
Resource Type:: Honors College Thesis
Full Text:: ). Congressional Republicans and Democrats use Twitter in the same way in their reelection campaigns (Evans et

Exploring maize pollen with microscopy: confocal, fluorescence and time-lapse imaging

Creator:: Hartman, Rogue D. J.
Abstract:: Pollen, the male product of the flower, is a crucial component in plant reproduction, as it transmits the sperm cells to the female structures, enabling fertilization and subsequent seed production. A major transition of the pollen life cycle, triggered upon pollination of female floral tissue, is from a dormant pollen...
Resource Type:: Honors College Thesis
Full Text:: the length of the pollen tube, with fewer at the extreme apical tip. This image represents a 3-D

Genomic Resources for Phylogenetics, Species Delimitation, and Geographic Localization of Neotropical Tree Species Cedrela odorata L. (Meliaceae)

Creator:: Finch, Kristen N.
Abstract:: Biodiversity loss is of global concern, and is due in part to deforestation and high consumer demand for wood and wood products. The neotropical tree species Cedrela odorata (“Spanish cedar” or “cedro”) is economically valuable for its wood and faces threats of overexploitation. Due to strong similarities in wood features...
Resource Type:: Dissertation
Full Text:: Localization of Neotropical Tree Species Cedrela odorata L. (Meliaceae) Abstract approved

Subcultures of Significance: Urbanity-Rurality, Tightness-Looseness, and Risk Perception

Creator:: Frydenlund, Nicole T. L.
Abstract:: Tightness-looseness (TL) is a cultural construct that measures the level of social norms present in a community, and the level of scrutiny of deviance from these norms. This construct offers a unique foundation for investigating how norms influence behavioral processes. Research in TL is relatively young, creating a frontier of...
Resource Type:: Honors College Thesis
Full Text:: audit quality (Ying & Patel, 2016; Zheng, Patel, & Evans, 2019). While self-construal has greatly

Development of a Novel Device to Measure the Viscosity of High Temperature Molten Salts

Creator:: Blyther, Joshua D.
Abstract:: This thesis presents a novel design for a rheometer style viscometer by implementing high temperature and inert atmospheric requirements on the device. The goals of this device are to measure the viscosity of high temperature molten salts, which are corrosive and extremely hydroscopic. It also aims to be able to...
Resource Type:: Masters Thesis
Full Text:: determined using Equation 2 and Equation 3 Equation 2 𝜏𝑤 = [ Δ𝑃 𝐿 ] × [ 𝐷 4 ] Equation 3

ScholarsArchive@OSU

Parameter Estimation within a Kinematic Magnetohydrodynamics Framework

Quantifying uncertainty with stochastic collocation in the kinematic magentohydrodynamic framework

Stochastic Collocation Error Analysis Within a Kinematic Magnetohydrodynamics Framework

How Can We Help Individuals Experiencing Homelessness? Assessing Resource Strengths and Needs from First-Hand Accounts

Assessing variation in coyote (Canis latrans) diet across three sagebrush steppe sites with different levels of juniper encroachment

Winning through Compromise? An Examination of Bipartisanship and Electability

Exploring maize pollen with microscopy: confocal, fluorescence and time-lapse imaging

Genomic Resources for Phylogenetics, Species Delimitation, and Geographic Localization of Neotropical Tree Species Cedrela odorata L. (Meliaceae)

Subcultures of Significance: Urbanity-Rurality, Tightness-Looseness, and Risk Perception

Development of a Novel Device to Measure the Viscosity of High Temperature Molten Salts

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