Index Catalog // ScholarsArchive@OSU

Experimental and theoretical analysis of radial porosity in a monodisperse sphere packing

Creator:: Nakamoto, Nathan
Abstract:: This thesis presents an experimental study of radial porosity in a manually filled cylindrical container with glass spheres. The symmetric distribution of bead diameter allowed for normalization of container properties and porosity models. The aspect ratio of the container was approximately 3.9, with tube-to-particle-diameter ratio λ ≈ 24.6 and height-to-particle-diameter...
Resource Type:: Masters Thesis
Full Text:: ://www.sciencedirect.com/ science/article/pii/S0263876202722326. [11] G. Johnson. PhD thesis. Rochester, NY: University

Spatial and Temporal Assessment of Vertically Migrating Myctophids as Biotransporters of Microplastics to Mesopelagic Food Webs

Creator:: Boisen, Olivia C.
Abstract:: It is well documented that microplastics and semi-synthetic particles (<5 mm) pervade the marine environment, with their ingestion by marine fauna eliciting global concern. While fishes exposed to microparticles in a laboratory setting have exhibited both sub-lethal and lethal effects, the diversity in material, morphology, and size of these contaminants...
Resource Type:: Masters Thesis
Full Text:: September of 2005 through 2009, three species of myctophids (Tarletonbeania crenularis, Diaphus theta

Accounting for Transient Dynamics Improves use of Marine Protected Areas as a Reference Point for Fisheries Management

Creator:: Quennessen, Victoria I.
Abstract:: Fisheries management that is based on quantitative assessment has commonly relied on estimating the unfished biomass of a fished stock to compare current and historical population size. Developing predictive models for this requires many years of catch and abundance data. Smaller, new, or mainly recreational fisheries may not have the...
Resource Type:: Masters Thesis
Full Text:: implementation. 19 For age structure, I calculated the angle Theta (Θ) as the nth dimensional distance

The Effect of Isothermal Aging on the Development of Long-Range Order in Ni-based Alloys

Creator:: Aerne, Nicholas S. J.
Abstract:: Nickel (Ni)-based alloys with a high chromium (Cr) content are frequently employed in applications where elevated temperatures and/or corrosive environments are present due to their excellent corrosion resistance and mechanical properties. However, a gap exists around the formation, and kinetics of long-range order (LRO) Ni2Cr phase in both model binary...
Resource Type:: Dissertation
Full Text:: Kolmogorov-Johnson-Mehl-Avrami model ..................................................................... 32

The Identification of Common Environmental and Demographic Associations for Tick-Borne Disease Risk and Surveillance Efforts in the United States

Creator:: Ashraf, Benjamin J.
Abstract:: Ixodes scapularis (e.g. blacklegged tick) is a hard-bodied tick considered endemic to certain regions within the United States. This species is considered a primary vector of Lyme disease (Borrelia burgdorferi), anaplasmosis (Anaplasma phagocytophilum) and babesiosis (Babesia microti). Each of these tick-borne diseases represent a growing health concern within the nation...
Resource Type:: Dissertation

Numerical Studies on Fluid-Structure Interaction and Applications

Creator:: Chen, Ming
Abstract:: Fluid-structure interaction (FSI) has been of significant research interest worldwide over the past several decades because of its variety of applications in both offshore and coastal engineering. Researchers analyzing FSI systems rely heavily on experimental tests in model scale in laboratories or large-scale sea trials. However, these tests are often...
Resource Type:: Dissertation
Full Text:: Dynamic Analysis Using Wilson-Theta Implicit Time Marching Scheme

High Temperature Electrical Properties of Ceria-Based Ceramics for Use as Electrodes in Magnetohydrodynamic Power Generators

Creator:: Bowen, Michael S.
Abstract:: Determining the electrical properties of ceria-based materials is important for their use as electrodes in hot-wall magnetohydrodynamic (MHD) power generators with wall temperatures greater than 1500 ̊C. The electrical conductivity of a material can be used in models for predicting the performance of generator designs. More specifically, the temperature dependent...
Resource Type:: Dissertation
Full Text:: INDICATE FLUORITE CERIA PEAK LOCATIONS. A) FULL SCAN ANGLE OF TWO-THETA BETWEEN 10 AND 90. B) REGIME OF

Platinum Nanoparticles in Transition Alumina: An Atomic Resolution Study of Interfaces

Creator:: Clauser, Arielle L.
Abstract:: The phases of transition alumina are scientifically interesting due to their high specific surface area, favorable acid/ base characteristics, and chemical and hydrothermal stability which make this metallic oxide a prime candidate for use as a support for metallic nanoparticles (NPs) in heterocatalysis. Interactions at alumina/Pt interfaces are important for...
Resource Type:: Dissertation
Full Text:: blocks [48]. Theta alumina, shown in Figure 3, is the final metastable phase in the amorphous to α

Synthesis and Solution Behavior of Tetravalent Metal Clusters with Ammonium Counterions

Creator:: Brown, Jessica C.
Abstract:: Global interest in reducing carbon emissions by use of alternative energy sources makes nuclear energy production and the impacts of the nuclear energy cycle relevant. Studying the aqueous speciation of tetravalent metals commonly used for nuclear energy (uranium, thorium, plutonium) can inform us of general metal properties and their behavior...
Resource Type:: Honors College Thesis
Full Text:: mixture of Structures 1 and 2 are major peaks at low theta values (between 10 and 20 degrees), and a

What lies Beneath? Origin and Transition from the Shallow Epithermal Au-Ag Lithocap to Deeper Porphyry Cu Environment: Insights from the Magmatic Hydrothermal Deposits at Yerington, Nevada, and Summitville, Colorado

Creator:: Sepp, Michael D.
Abstract:: Near-surface advanced argillic hydrothermal alteration zones, also referred to as lithocaps, are characterized by quartz, alunite, clays (pyrophyllite and kaolinite group minerals), and minor F-bearing aluminosilicates (i.e., topaz, zunyite, diaspore, and APS) that form where water-, SO2-, and HF-rich gas condenses into shallow groundwater, acidifies, and reacts with rocks. The...
Resource Type:: Dissertation
Full Text:: 4.12. XRD spectral scans between 38.6 and 41.4° 2-theta for synthetic alunite-natroalunite samples

ScholarsArchive@OSU

Experimental and theoretical analysis of radial porosity in a monodisperse sphere packing

Spatial and Temporal Assessment of Vertically Migrating Myctophids as Biotransporters of Microplastics to Mesopelagic Food Webs

Accounting for Transient Dynamics Improves use of Marine Protected Areas as a Reference Point for Fisheries Management

The Effect of Isothermal Aging on the Development of Long-Range Order in Ni-based Alloys

The Identification of Common Environmental and Demographic Associations for Tick-Borne Disease Risk and Surveillance Efforts in the United States

Numerical Studies on Fluid-Structure Interaction and Applications

High Temperature Electrical Properties of Ceria-Based Ceramics for Use as Electrodes in Magnetohydrodynamic Power Generators

Platinum Nanoparticles in Transition Alumina: An Atomic Resolution Study of Interfaces

Synthesis and Solution Behavior of Tetravalent Metal Clusters with Ammonium Counterions

What lies Beneath? Origin and Transition from the Shallow Epithermal Au-Ag Lithocap to Deeper Porphyry Cu Environment: Insights from the Magmatic Hydrothermal Deposits at Yerington, Nevada, and Summitville, Colorado

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