Index Catalog // ScholarsArchive@OSU

Forest canopy effects on snow depth and density of seasonal and transient mountain snowpack in a maritime snow climate

Creator:: Whidden, Ian W.
Abstract:: Relatively little is known about how various factors influence snow water storage in forested mountain landscapes in maritime (warm winter) climates. This study took advantage of multiple snow data sources including long-term data, synoptic sampling, remote sensing, and modeling to examine factors influencing snow dynamics in the H.J. Andrews Experimental...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Ian W. Whidden

Spatial distribution and the probability of occurrence of beluga whales (Delphinapterus leucas) in Alaskan Arctic

Creator:: Romeo, Lucy F.
Abstract:: The known distribution of beluga whales ranges from sub-Arctic to Arctic waters where they migrate in pods in response to environmental factors such as the presence of sea ice and prey. This study uses bivariate and multivariate analysis techniques to measure how environmental covariates are associated with the spatial-temporal distribution...
Resource Type:: Masters Thesis
Full Text:: Beluga Whales (Delphinapterus leucas) in Alaskan Arctic AN ABSTRACT OF THE THESIS OF Lucy F. Romeo

Diversity, Generalization, and Specialization in Plant-Pollinator Networks of Montane Meadows, Western Cascades, Oregon

Creator:: Helderop, Edward
Abstract:: Despite the importance of plant-pollinator interactions for ecological communities, few long-term observational studies have been conducted of plant-pollinator networks. Using four years of plant-pollinator interaction data from 18 meadows in the Willamette National Forest, Oregon, this thesis examined how meadow size, the amount of nearby meadow habitat, weather, degree days,...
Resource Type:: Masters Thesis
Full Text:: Figueroa, U Jacob, J Jones, R Lauridsen, M Ledger, H Lewis, J Olesen, F Van Veen, P Warran and G Woodward

Influence of spatial and temporal factors on plants, pollinators and plant-pollinator interactions in montane meadows of the western Cascades Range

Creator:: Pfeiffer, Vera W.
Abstract:: Montane meadows comprise less than 5% of the landscape of the western Cascades of Oregon, but they provide habitat for diverse species of plants and pollinators. Little is known about plant-pollinator network structure at these sites. This study quantified plant-pollinator interactions over the summer of 2011, based on six observations...
Resource Type:: Masters Thesis
Full Text:: Vera W. Pfeiffer for the degree of Master of Science in Geography presented on June 1, 2012

Precipitation-snowmelt timing and snowmelt augmentation of large peak flow events, western Cascades, Oregon

Creator:: Jennings, Keith S.
Abstract:: Despite advances in the understanding of rain-on-snow storms and their resulting peak flows, little is understood about the response of snowmelt to precipitation and the relative timing of the two at multiple temporal scales within such events. To address this issue, climate, snowmelt, and streamflow data were analyzed for 26...
Resource Type:: Masters Thesis
Full Text:: Flow Events, Western Cascades, Oregon. Abstract approved: Julia A. Jones Despite advances in the

The lipids of spore types B, E, and F and vegetative cell types E and F of Clostridium botulinum

Creator:: Kimble, Charles E.
Abstract:: The primary purpose of this investigation was to characterize the lipids of the spores and vegetative cells of Cl. botulinum. A second purpose was to explore the possibility that lipids might serve as a means of differentiating the chiefly proteolytic Cl. botulinum type B from the nonproteolytic Cl. botulinum types...
Resource Type:: Masters Thesis
Full Text:: The Lipids of Spore Types B, E, and F and Vegetative Cell

Analysis and performance of a conventional high speed compression-ignition engine adapted to gas fuel utilization

Creator:: Jones, Lester Robert
Resource Type:: Masters Thesis
Full Text:: Jones for the M. S. in Mechanical Engineering (NeT (Degree) (Major) Date Tnesis presented - May 15

Optimal control of an underactuated bipedal robot

Creator:: Jones, Mikhail S.
Abstract:: Bipedal robots represent a unique class of control problems that combine many of the most difficult elements of nonlinear control. These robots are typically designed to be mobile and as such have limited energy and actuator authority making efficiency a prime concern. Unlike wheeled robots, legged robots must transition between...
Resource Type:: Masters Thesis
Full Text:: ABSTRACT OF THE THESIS OF Mikhail S. Jones for the degree of Master of Science in Mechanical Engineering

Deep desulfurization of diesel fuel using a single phase photochemical microreactor

Creator:: Jones, Jacob Aaron
Abstract:: There is an urgent need to lower the concentration of sulfur in diesel fuels. Growing concern over environmental effects caused by burning sulfur-containing diesel has led the world to higher standards in fuel refinement. Because of these lower standards, many techniques have been researched to remove sulfur containing compounds or...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Jacob Aaron Jones

Mapping vegetation using landsat TM and ETM+ in Eritrea

Creator:: Iyob, Biniam
Abstract:: The objective of this study was to examine vegetation and vegetation change in Eritrea over a period from the mid 1980s to 2002 using satellite remote sensing, and relate observed changes to the recent history of drought and war in the region. Specific objectives were (1) to examine vegetation change...
Resource Type:: Masters Thesis
Full Text:: : ________________________________________________________ Julia A. Jones The objective of this study was to examine vegetation and vegetation change

ScholarsArchive@OSU

Forest canopy effects on snow depth and density of seasonal and transient mountain snowpack in a maritime snow climate

Spatial distribution and the probability of occurrence of beluga whales (Delphinapterus leucas) in Alaskan Arctic

Diversity, Generalization, and Specialization in Plant-Pollinator Networks of Montane Meadows, Western Cascades, Oregon

Influence of spatial and temporal factors on plants, pollinators and plant-pollinator interactions in montane meadows of the western Cascades Range

Precipitation-snowmelt timing and snowmelt augmentation of large peak flow events, western Cascades, Oregon

The lipids of spore types B, E, and F and vegetative cell types E and F of Clostridium botulinum

Analysis and performance of a conventional high speed compression-ignition engine adapted to gas fuel utilization

Optimal control of an underactuated bipedal robot

Deep desulfurization of diesel fuel using a single phase photochemical microreactor

Mapping vegetation using landsat TM and ETM+ in Eritrea

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