Index Catalog // ScholarsArchive@OSU

Non Newtonian viscosity of bulk metallic glass forming liquids and the ordering and shear rate induced crystallization of undercooled Zr₄₁.₂Ti₁₃.₈Cu₁₂.₅Ni₁₀.₀Be₂₂.₅ metallic glass forming melt

Creator:: Wadhwa, Prashant
Abstract:: The influence of shear rate and temperature on the viscosity and fragility of the Zr₄₁.₂Ti₁₃.₈Cu₁₂.₅Ni₁₀.₀Be₂₂.₅ (Vit1) metallic glass forming liquid is measured in the liquid and undercooled liquid state between 907 and 1300 K. The results show a complex rheological behavior of Vit1. The viscosity of Vit1 is about three...
Resource Type:: Dissertation
Full Text:: measured as 1225 K. Upon cooling this liquid the strong liquid behavior is only re-established when the

Maximization of energy capture of passive, variable-speed wind-turbine

Creator:: Kinjo, Fuminao
Abstract:: This thesis presents and examines the concept that the output of a wound-rotor induction generator (WRIG) can be limited by means of linking to external impedances for wind-turbine generating system application. An 80kW-WRIG is simulated as a model to examine the control of the output power vs. speed characteristic. Model...
Resource Type:: Masters Thesis
Full Text:: [%] Stator Current [A] Power Factor 1202 13.1 1.65 0 0 34.1 0.002 1225 73.6 9.44 7.91 83.7 36.2 0.262

Assessing the impact of temperature on grape phenolic metabolism

Creator:: Cohen, Seth D.
Abstract:: Many climatic factors influence grape berry composition including nutrient status, water availability, biotic stress, sun exposure and temperature. Previous research examined the effects of many factors listed above and much progress has been made. It is often difficult, however, to separate effects that typically confound each other, such as sun...
Resource Type:: Masters Thesis
Full Text:: Exobasidium vexans tended to be higher in (-)-epicatechin (EC) and lower in epigallocatechin gallate (EGCG

Large volume (1,800 µL) injection HPLC/MS/MS for the quantitative determination of illicit drugs and human urinary biomarkers in municipal wastewater

Creator:: Chiaia Hernandez, Aurea C.
Abstract:: A sensitive, selective, rapid analytical method based on large-volume injection (LVI) liquid chromatography/ tandem mass spectrometry was developed using commercially-available hardware that eliminates the need for either off-line or on-line solid phase extraction. Centrifugation followed by the direct injection of 1,800 µL was used for the quantification of illicit drugs,...
Resource Type:: Masters Thesis

Evaluation of bacterial community indicators of stream sanitary and ecological condition

Creator:: Bracken, Caragwen L.
Abstract:: The focus of this research was to develop bacterial community indicators of stream sanitary and ecological condition. The first study compared substrate utilization patterns between centrifuged and uncentrifuged split samples. We found a shift in the relative proportion of each group of bacteria following centrifugation, with a marked increased in...
Resource Type:: Dissertation
Full Text:: (FC), E. coli (EC), and the maximum Biolog Average Well Color Development (Max AWCD) and percent

Modeling the Compatibility of Biological and Economic Objectives on a Forested Landscape

Creator:: Calkin, David, Montgomery, Claire A., Shumaker, Nathan H., Polasky, Stephen, Arthur, Jeffrey A., and Nalle, Darek J.
Abstract:: An integrated model combining a wildlife population simulation model and timber harvest and growth models was developed to explore the tradeoffs between the likelihood of persistence of a hypothetical wildlife species and timber harvest volumes on a landscape in the Central Oregon Cascades. Simulated annealing, a heuristic optimization technique, was...
Resource Type:: Conference Proceeding
Full Text:: ve st p er d ec ad e, t h o u s. b d . f t. Total Volume = 2.4 bbf Total Volume = 2.25

Pyoluteorin as a signaling molecule regulating secondary metabolite production and transport genes in Pseudomonas fluorescens Pf-5

Creator:: Brodhagen, Marion L.
Abstract:: A major factor in the ability of Pseudomonas fluorescens Pf-5 to act as a biological control agent is its production of antibiotics, including pyoluteorin (PLT), 2,4-diacetylphloroglucinol (2,4-DAPG) and pyrrolnitrin (PRN). The data provided in this thesis demonstrate that the presence of any of these antibiotics in the extracellular milieu affects...
Resource Type:: Dissertation

A chronosequence of wood decomposition in the boreal forests of Russia

Creator:: Yatskov, Mikhail, Harmon, Mark E., and Krankina, Olga N.
Abstract:: Coarse woody debris (CWD), represented by logs and snags >10 cm in diameter and >1 m in length, was sampled at eight sites in Russian boreal forests to determine the specific density of decay classes and decomposition rates. Tree species sampled included Abies siberica Ledeb., Betula pendula Roth., Betula costata...
Resource Type:: Article

Ascorbylation- the biological relevance of covalently bound ascorbic acid

Creator:: Kesinger, Nicholas G.
Abstract:: Ascorbic acid, or vitamin C, is well known as a co-factor for proline-hydroxylase and as an anti-oxidant. However, it is also capable of forming covalent bonds, particularly in the role of a nucleophile, henceforth termed 'ascorbylation'. The ascorbylation of electrophiles can occur under physiological conditions. Furthermore, there are a number...
Resource Type:: Dissertation

Comparison of MODIS binary and fractional snow cover mapping techniques in the Himalayan Region, Nepal

Creator:: Tuladhar, Preeti
Abstract:: Satellite remote sensing is an effective tool for mapping snow covered area. However, complex terrain and heterogeneous land cover, due to vegetation and patchy snow cover, present challenges to snow cover mapping. This research compares two techniques for mapping snow covered area: binary and enhanced fractional snow cover mapping techniques....
Resource Type:: Capstone Project
Full Text:: on the equation (Adam et al., 1986), R F Rc i i c i N = + = ∑ , 1 Ec

ScholarsArchive@OSU

Non Newtonian viscosity of bulk metallic glass forming liquids and the ordering and shear rate induced crystallization of undercooled Zr₄₁.₂Ti₁₃.₈Cu₁₂.₅Ni₁₀.₀Be₂₂.₅ metallic glass forming melt

Maximization of energy capture of passive, variable-speed wind-turbine

Assessing the impact of temperature on grape phenolic metabolism

Large volume (1,800 µL) injection HPLC/MS/MS for the quantitative determination of illicit drugs and human urinary biomarkers in municipal wastewater

Evaluation of bacterial community indicators of stream sanitary and ecological condition

Modeling the Compatibility of Biological and Economic Objectives on a Forested Landscape

Pyoluteorin as a signaling molecule regulating secondary metabolite production and transport genes in Pseudomonas fluorescens Pf-5

A chronosequence of wood decomposition in the boreal forests of Russia

Ascorbylation- the biological relevance of covalently bound ascorbic acid

Comparison of MODIS binary and fractional snow cover mapping techniques in the Himalayan Region, Nepal

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