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An experimental investigation of transition pool boiling

Creator:: Aoki, Tadao
Abstract:: The heat-transfer phenomena studied in this work were associated with pool boiling from a flat horizontal surface facing upward with the bulk liquid at its saturation temperature. The analysis of boiling sound and the investigation of the transition boiling mechanism constituted the essence of the present study. The distinctively large...
Resource Type:: Dissertation
Full Text:: EXPERIMENTAL INVESTIGATION OF TRANSITION POOL BOILING Abstract approved: Redacted for Privacy James 1 Welty

Bottom-up and top-down forces in tidepools : the influence of nutrients, herbivores, and wave exposure on community structure

Creator:: Nielsen, Karina Johanna
Abstract:: The relationship between nutrients and community structure is poorly understood in open-coast habitats. I created a system of artificial tidepools, of identical age and physical dimensions, at two sites that differed in wave exposure, and manipulated nutrient levels and the abundance of herbivores. Using these unique field mesocosms, I explored...
Resource Type:: Dissertation
Full Text:: proposed that the abundance of tidepool seaweeds can be modeled as a function of pool volume, degree of

Effects of deforestation and land use on biomass, carbon, and nutrient pools in the Los Tuxtlas Region, Mexico

Creator:: Hughes, R. Flint
Abstract:: Land-use change in forested regions of the tropics is currently one of the largest anthropogenic perturbations on earth; it is a force capable of altering biogeochemical cycles at local, regional, and global scales. However, significant uncertainties exist concerning the impact of land-use change on biomass and elemental pools of tropical...
Resource Type:: Dissertation

DNA precu[r]sor compartmentation in mammalian cells : metabolic and anti-metabolic studies of nuclear and mitochondrial DNA synthesis

Creator:: Bestwick, Richard Keith
Abstract:: This dissertation describes an investigation of DNA precursor supply for mitochondrial and nuclear DNA synthesis in HeLa cells and Mouse L-cells. HeLa cells were used for the quantitation of cellular and mitochondrial deoxyribonucleoside triphosphate (dNTP) and ribonucleoside triphosphate (rNTP) pools and of changes in pools in response to treatment with...
Resource Type:: Dissertation
Full Text:: . Mitochondrial rNTP pools were also found to expand in response to these antimetabolites. The cellular dGTP pool

Age-related alterations in transcriptional regulation of hepatic glutathione synthesis : remediation by R-alpha-lipoic acid

Creator:: Shenvi, Swapna V.
Abstract:: Glutathione (GSH) is the predominant low molecular weight thiol antioxidant in liver tissue. GSH plays an important role in maintaining the intracellular thiol redox ratio as well as detoxification of electrophiles and xenobiotics. Aging leads to a significant decline (35%; P ≤ 0.05) in hepatocellular GSH levels. Using young (2-4...
Resource Type:: Dissertation
Full Text:: Regulation of Hepatic Glutathione Synthesis: Remediation by R-Alpha-Lipoic Acid Abstract approved

Aroma comparison of 'Marion' (Rubus sp. L.) and 'Thornless Evergreen' (R. laciniatus L.) blackberries

Creator:: Klesk, Keith
Abstract:: 'Marion' and 'Thornless Evergreen' blackberry volatiles were analyzed by capillary gas chromatography-flame ionization detection (GC-FED) and GC-mass spectrometry (GC-MS). Based on total percentage of FID area 'Thornless Evergreen' contains significantly more alcohols, hydrocarbons, and phenols than the 'Marion'; 'Marion' contains more acids and esters. Both cultivars contained comparable amounts of...
Resource Type:: Dissertation
Full Text:: COMPARISON OF 'MARION' (Rubus sp. L.) AND 'THORNLESS EVERGREEN' (R. laciniatus h.) BLACKBERRIES Abstract

Hydric Soils in Eastern Oregon Temporary Pools

Creator:: Clausnitzer, David
Abstract:: Two types of temporary poois, known as playas, occur in semiarid southeast Oregon. Vegetated upland playas are found in the High Lava Plain province; barren alkaline-saline playas are found in the Basin and Range province. Both types become ponded in most years, but they often lack redoximorphic features indicative of...
Resource Type:: Dissertation
Full Text:: , redox potentials, and vegetation in one pool of each type to elucidate processes of soil genesis, to

Antioxidant mechanisms of ascorbate and (R)-α-lipoic acid in aging and transition metal ion-mediated oxidative stress

Creator:: Shu, Jung Hyuk
Abstract:: Oxidative stress is the major driving force behind the aging process and many age-related diseases. However, direct experimental evidence of whether antioxidants, such as ascorbate (AA) and lipoic acid (LA) can slow the progression of aging process and/or reduce risks of developing degenerative disease is largely absent. This suggests a...
Resource Type:: Dissertation
Full Text:: Mechanisms of Ascorbate and (R)-Alpha-Lipoic Acid in Aging and Transition Metal Ion-Mediated Oxidative Stress

Linking marine communities and ecosystems : invertebrates mediate nutrient availability in intertidal communities

Creator:: Bracken, Matthew E.
Abstract:: While community ecologists have traditionally focused on local-scale processes, it has become apparent that a broader perspective, which explores the community-level ramifications of material fluxes within and between ecosystems, is necessary to effectively evaluate bottom-up influences on community structure and dynamics. In this dissertation, I employed ecosystem principles to understand...
Resource Type:: Dissertation
Full Text:: , David R. Schiel, and Jane Lubchenco assisted with data collection, analyses, logistical support, and

Pool absorption of gas entrained by a plunging liquid jet

Creator:: Hauxwell, Gerald Dean
Abstract:: A mathematical model was developed to predict the absorption rate of a slightly soluble gas entrained by a plunging liquid jet. The single parameter of the model, the transfer factor, TF, was defined as the summation of the product of the mass transfer coefficient and interfacial area over all the...
Resource Type:: Dissertation
Full Text:: yields: d(C V) - (r.+r +r )+Q C -Q Cdt S B J J E E where: CL = Solute gas concentration in the pool V

ScholarsArchive@OSU

An experimental investigation of transition pool boiling

Bottom-up and top-down forces in tidepools : the influence of nutrients, herbivores, and wave exposure on community structure

Effects of deforestation and land use on biomass, carbon, and nutrient pools in the Los Tuxtlas Region, Mexico

DNA precu[r]sor compartmentation in mammalian cells : metabolic and anti-metabolic studies of nuclear and mitochondrial DNA synthesis

Age-related alterations in transcriptional regulation of hepatic glutathione synthesis : remediation by R-alpha-lipoic acid

Aroma comparison of 'Marion' (Rubus sp. L.) and 'Thornless Evergreen' (R. laciniatus L.) blackberries

Hydric Soils in Eastern Oregon Temporary Pools

Antioxidant mechanisms of ascorbate and (R)-α-lipoic acid in aging and transition metal ion-mediated oxidative stress

Linking marine communities and ecosystems : invertebrates mediate nutrient availability in intertidal communities

Pool absorption of gas entrained by a plunging liquid jet

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