Index Catalog // ScholarsArchive@OSU

Commissioning of the NDDL-40 Neutron Detection System at Oregon State University

Creator:: Boulton, Nicholas M.
Abstract:: The Neutron radiography facility (NRF) at Oregon State University (OSU) has been modified to begin working on the non-destructive evaluation of concrete materials to study the early stages of shrinkage, cracking, and water transport of concrete during the curing process. The objective of this work is to investigate the efficiency...
Resource Type:: Masters Thesis
Full Text:: Nicholas M. Boulton for the degree of Master of Science in Radiation Health Physics presented on March 3

Spatiotemporal dynamics and drivers of stream pCO₂ in a headwater mountain catchment in the Cascade Mountains, Oregon

Creator:: Dosch, Nicholas T.
Abstract:: We examined the spatial and temporal variability of stream carbon dioxide (CO₂) and the drivers of these variations in a headwater catchment. To examine temporal variation and drivers, we measured stream and hyporheic pCO₂ at high temporal resolution over 11 months in a 95.9-ha forested headwater catchment in the Western...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Nicholas T. Dosch for

Understanding the Impact of Global Warming on Orographic Rain Shadows: Insights from a Pseudo-Global Warming Simulation over the Western United States

Creator:: Koszuta, Matthew
Abstract:: Some studies using regional climate models (RCMs) suggest a weakening of the climatological rain-shadow along the Cascade and Sierra Nevada mountains during the western US cool-season. To identify the possible mechanisms of rain-shadow weakening under warming, a new set of 30-year, high-resolution (6 km) pseudo-global warming (PGW) simulations were analyzed...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: ______________________________________________________ Nicholas Siler Some

Evaluating a Zonal-mean Hydrologic Model Against a Water Tag-enabled Global Simulation

Creator:: Mandovi, Andrew
Abstract:: The hydrologic cycle on Earth comprises the transitions among the solid, liquid, and gaseous phases of water. Understanding the hydrologic cycle is of course important for climate science, but also for agricultural, drinking water, and disaster preparedness purposes. Improvements in satellite observations and general circulation models (GCMs) have led to...
Resource Type:: Masters Thesis
Full Text:: awarded to Dr. Nicholas Siler. I am thankful and grateful to my advisor Nick, for his patience through

Understanding Drivers of Glacier Length Variability Over the Last Millennium

Creator:: Huston, Alan C.
Abstract:: Changes in glacier length reflect the integrated response to local fluctuations in temperature and precipitation, but when do such changes indicate forced climate change, and when do they indicate natural variability? In this study, we simulate the past ~1000 years of glacier length variability across the globe using the 3-stage...
Resource Type:: Honors College Thesis
Full Text:: :_____________________________________________________ Nicholas Siler Changes in glacier length reflect the integrated response to local

Systematically evaluating the developmental toxicity of nanomaterials using the zebrafish model

Creator:: Edwards, Sabrina R.
Abstract:: As engineered nanomaterials (ENM) become more common in consumer products, it is crucial to rapidly assess toxicity of unique ENM. Previous studies rarely focused on standardizing nanotoxicity testing, leading to inconsistent and irreproducible results. This study characterized a variety of ENM of different size, shape, core type, and surface charge...
Resource Type:: Poster, Undergraduate Thesis, and Presentation
Full Text:: rcheck size stability D S E c r DSE (J/ml) H y d r. d ia m e te r (n m ) nanoparticle

Ultraviolet photolysis of acetaminophen in a 3D printed continuous flow reactor

Creator:: Goetze, John M.
Abstract:: Finding renewable sources of agricultural fertilizer will be necessary to ensure a stable food supply for future generations. Phosphorus is of particular concern, since mining phosphate rock is the main source and reserves are forecasted to deplete in the next 50 – 200 years. Human urine contains substantial amounts of...
Resource Type:: Honors College Thesis
Full Text:: continuous flow reactor Abstract approved:_____________________________________________________ Nicholas

Interactions of Hydrological Processes and Riparian Zone Function During Seasonal Ceased Flow Regimes Within an Intermittent Stream Basin of the Oak Creek Watershed, Oregon, USA

Creator:: Colter, Nicholas R.
Abstract:: Riparian zone conservation is vital as species’ ability to adapt to a changing climate and pressure from land use is constantly tested. The unique microclimates of riparian zones offer cooler temperatures and resourceful habitats for aquatic and terrestrial organisms. This is essential during seasonal ceased flow regimes when water availability...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Nicholas R

Synthetic studies of nonadrides

Creator:: Drapela, Nicholas Ernest
Abstract:: An asymmetric approach to the synthesis of byssochlamic acid (1) is described. Regioisomeric enzymatic differentiation is described in the selective hydrolysis of dimethyl ester 30 by porcine liver esterase. Chiral dimethyl ester 42 was prepared by desymmetrization of cyclopentene 34 using porcine liver esterase. A key intramolecular [2+2]cycloaddition-cycloreversion photometathesis of...
Resource Type:: Dissertation
Full Text:: DISSERTATION OF Nicholas E. Drape la for the degree of Doctor of Philosophy in Chemistry presented on August

Production of C4-C10 Hydrocarbons from CO₂, H₂O, CO, H₂ and CH₄ Utilizing DC Glow Discharges, Catalytic Rapid Temperature Pulsing in Micro-Scale Reactors.

Creator:: Mohamed, Omar M.
Abstract:: This thesis experimentally determines the feasibility to creating C4 to C10 hydrocarbons from CO2, CO, H2, H2O and CH4. This is done in two steps, the initial step is the formation of ethylene through DC electrical glow discharge at ambient pressure while the second step is through temperature pulse controlled...
Resource Type:: Dissertation
Full Text:: research. Alongside him Dr. Nicholas AuYeung, Dr. Matthew Coblyn, Dr. Liney Arnadottir and Dr. Alexandre

ScholarsArchive@OSU

Commissioning of the NDDL-40 Neutron Detection System at Oregon State University

Spatiotemporal dynamics and drivers of stream pCO₂ in a headwater mountain catchment in the Cascade Mountains, Oregon

Understanding the Impact of Global Warming on Orographic Rain Shadows: Insights from a Pseudo-Global Warming Simulation over the Western United States

Evaluating a Zonal-mean Hydrologic Model Against a Water Tag-enabled Global Simulation

Understanding Drivers of Glacier Length Variability Over the Last Millennium

Systematically evaluating the developmental toxicity of nanomaterials using the zebrafish model

Ultraviolet photolysis of acetaminophen in a 3D printed continuous flow reactor

Interactions of Hydrological Processes and Riparian Zone Function During Seasonal Ceased Flow Regimes Within an Intermittent Stream Basin of the Oak Creek Watershed, Oregon, USA

Synthetic studies of nonadrides

Production of C4-C10 Hydrocarbons from CO₂, H₂O, CO, H₂ and CH₄ Utilizing DC Glow Discharges, Catalytic Rapid Temperature Pulsing in Micro-Scale Reactors.

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