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Assessment of Extraterrestrial Tracers Ir, Pt and ³He in Polar Ice Cores

Creator:: Mehmel, Nicholas C.
Abstract:: This thesis focuses on the investigation of extraterrestrial tracers Ir, Pt and 3He in polar ice cores. These tracers may be used to identify characteristics of interplanetary dust particles, and to quantify the flux of extraterrestrial material during impact events, certain volcanic eruptions, and stable background periods. In the first...
Resource Type:: Masters Thesis
Full Text:: Ir and Pt signal are captured by each. An average Ir concentration of ~0.4 fg/g and average Pt

Tropical Fruit Aroma in Chardonnay: Impact of Fermentation Techniques on Volatile Ester and Thiol Concentrations, Tropical Fruit Aroma Perception, Preference, and Emotional Response

Creator:: Lucas, Chase J.
Abstract:: Tropical fruit aromas are prominent in wines like Sauvignon Blanc, one of the most abundant white wines in the United States. With high consumer interest for these aromas, it has become increasingly important to understand the factors that influence the desired tropical fruit aromas in white wines. Understanding the causes...
Resource Type:: Masters Thesis
Full Text:: at 13℃ with no skin contact, SC = fermentation at 13℃ with 18 hours of skin contact, FG

Comparing Sediment Microbial Communities of Arctic Beaver Ponds to Tundra Lakes and Streams

Creator:: Shannon, Kelly
Abstract:: In recent decades the habitat of North American beaver (Castor canadensis) has expanded from boreal forests into pan-Arctic tundra ecosystems. It is unknown how the advance of beavers into Arctic watersheds will impact microbial communities responsible for the mineralization of organic matter (OM), which has implications for carbon cycling. To...
Resource Type:: Masters Thesis
Full Text:: ………………………….7 2.3.1 Global Permafrost and Arctic Melting………………………………..7 2.3.2 Thermokarst Lake

Germination and growth characteristics of five accessions of jointed goatgrass (Aegilops cylindrica)

Creator:: Gleichsner, Jean A.
Abstract:: Laboratory and field studies were conducted at Pendleton, Oregon, during 1983 and 1984 to evaluate germination and growth characteristics of five jointed goatgrass (Aegilops cylindrica Host) accessions collected from sites in Echo, Ione, Pendleton, Condon, and Elgin, Oregon. Spikelets were germinated for 27 days at room (23 +̲ 2 C)...
Resource Type:: Masters Thesis
Full Text:: 0.1 e 0.3 de 1.8 b-e 9.3 a Elgin 7 0.5 fg 2.6 b-g 2.2 c-g 0.9 e-g 1.7 d-g 1.3 d-g 0.5 fg 18 0.1 g 1.6

The preparation and human taste detection of low degree of polymerization glucose oligomers

Creator:: Pullicin, Alexa J.
Abstract:: There is growing evidence that humans and other animals can taste certain starch hydrolysis products, namely, maltooligosaccharides (MOS), and that their detection is independent of the known sweet receptor, T1R2 T1R3. The overall goal of this study was to further investigate the taste perception of low degree-of-polymerization (DP) MOS in...
Resource Type:: Masters Thesis
Full Text:: 6-7) by fractionating commercial mixtures of glucose oligomers and polymers. Psychophysical

Modeling of subthreshold current of GaAs MESFET and the design of voltage reference circuit

Creator:: Or, Pee-Keong
Abstract:: The characteristic of the subthreshold current in a GaAs MESFET exhibits a negative exponential function with Vgs. After studying the behavior of this current in this region over a range of temperature and drain bias voltages, a subthreshold current model was developed. The model was implemented in a circuit simulation...
Resource Type:: Masters Thesis
Full Text:: coefficients of these two voltage references over a temperature range of -55 to 125 degrees Celsius were 7

An Application of Visual Management to Reduce In-house Material Handling Wastes in SMEs with High Product Variety and Low Volume

Creator:: Kopriva, Cody
Abstract:: Small and medium-sized enterprises that are characterized by high-mix, low-volume, and highly variable production operations often have unstructured material movement processes that are prone to material handling wastes. These sub-optimal material handling systems are oftentimes a result of small and medium-sized enterprise's limited resources. Current tools to assist organizations in...
Resource Type:: Masters Thesis
Full Text:: ........................................................................................... 7 1.7 Research Objective

Heparin-regulated release of growth factors in vitro and angiogenic response in vivo to implanted hyaluronan hydrogels containing VEGF and bFGF

Creator:: Pike, Daniel B.
Abstract:: Biocompatible hydrogels composed of covalently crosslinked, chemically modified hyaluronan (HA), gelatin (Gtn), and heparin (Hp) were synthesized for controlled release of human vascular endothelial growth factor (VEGF) or basic fibroblast growth factor (bFGF). We hypothesized that inclusion of small quantities of heparin in these gels would result in regulated growth...
Resource Type:: Masters Thesis
Full Text:: mice and the resulting neovascularization response measured at 7, 14, and 28 days post-implantation

Refrigerated seawater depuration for reducing Vibrio parahaemolyticus contamination in raw Pacific oysters (Crassostrea gigas)

Creator:: Yang, Qianru
Abstract:: Vibrio parahaemolyticus is a seafood-borne pathogen that can cause gastroenteritis in humans. This study investigated the effectiveness of refrigerated seawater (5°C) depuration on reducing V. parahaemolyticus in raw Pacific oysters (Crassostrea gigas). Raw Pacific oysters were inoculated with a mixed culture of five clinical strains of V. parahaemolyticus and depurated...
Resource Type:: Masters Thesis
Full Text:: (7-9ºC in winter, 16-17ºC in summer) and the refrigerated seawater (5ºC). Because of the increased

Off-design analysis and control of a wood-fired combined-cycle power plant

Creator:: Brawn, Robert Charles
Abstract:: This report presents the off-design analysis of various wood-fired combined-cycle power plants using a computer model to simulate plant performance. The combined-cycle systems investigated are characterized by having a woodfueled combustor, an indirect-fired gas turbine, and a Rankine steam cycle. This work was conducted as part of a larger biomass...
Resource Type:: Masters Thesis
Full Text:: unit is implemented in system 7 raising the temperature of the air entering the gas turbine to 1612 F

ScholarsArchive@OSU

Assessment of Extraterrestrial Tracers Ir, Pt and ³He in Polar Ice Cores

Tropical Fruit Aroma in Chardonnay: Impact of Fermentation Techniques on Volatile Ester and Thiol Concentrations, Tropical Fruit Aroma Perception, Preference, and Emotional Response

Comparing Sediment Microbial Communities of Arctic Beaver Ponds to Tundra Lakes and Streams

Germination and growth characteristics of five accessions of jointed goatgrass (Aegilops cylindrica)

The preparation and human taste detection of low degree of polymerization glucose oligomers

Modeling of subthreshold current of GaAs MESFET and the design of voltage reference circuit

An Application of Visual Management to Reduce In-house Material Handling Wastes in SMEs with High Product Variety and Low Volume

Heparin-regulated release of growth factors in vitro and angiogenic response in vivo to implanted hyaluronan hydrogels containing VEGF and bFGF

Refrigerated seawater depuration for reducing Vibrio parahaemolyticus contamination in raw Pacific oysters (Crassostrea gigas)

Off-design analysis and control of a wood-fired combined-cycle power plant

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