Index Catalog // ScholarsArchive@OSU

Micropropagation of Douglas fir (Pseudotsuga menziesii) in a double-phase culture medium

Creator:: Gross, Leah M.
Abstract:: The timber and Christmas tree industries are important components of the Pacific Northwest economy. A goal of both industries is to produce high quality trees with high growth rates. Accomplishing this requires increased genetic quality of the trees grown. Tissue culture provides the most promise for propagating these superior genotypes....
Resource Type:: Honors College Thesis

Fifty years of change in a Pacific Northwest winter forest bird community

Creator:: Clements, Nolan
Abstract:: North American bird populations have declined throughout the past half century. The majority of studies quantifying these declines have focused on spring and summer breeding birds; not the season of scarcity, winter. We re-surveyed 7 large study plots in Douglas fir forests initially surveyed in winter during the late 1960s...
Resource Type:: Honors College Thesis
Full Text:: : _____________________________________________________ W. Douglas Robinson North American bird populations have declined throughout the

Vacuum Testing of a Small Radioisotope Thermoelectric Generator

Creator:: Mieloszyk, Alexander J.
Abstract:: Radioisotope Power Systems (RPS’s) are a key element to NASA’s deep space exploration programs. As NASA looks towards new generations of smaller, modular spacecraft, appropriately smaller RPS’s will be needed. The Single General Purpose Heat Source Radioisotope Thermoelectric Generator (S-GPHS-RTG) has been developed to fill this role. The S-GPHS-RTG will...
Resource Type:: Honors College Thesis
Full Text:: Radioisotope Thermoelectric Generator Abstract approved: Brian Woods Radioisotope Power Systems

Modeling the Fusion Reaction in an Inertial Electrostatic Confinement Reactor with the Particle-in-Cell Method

Creator:: van de Lindt, Jacob
Abstract:: Nuclear fusion has the potential to meet the energy needs of our civilization for centuries to come and does not produce harmful greenhouse gasses or produce long-lasting radioactive waste. A fusion reaction can be readily demonstrated in a confinement scheme known as inertial electrostatic confinement (IEC) fusion. In this work,...
Resource Type:: Honors College Thesis
Full Text:: Brian Woods, Mentor, representing the Department of Nuclear Engineering

Tabletop fusion reactors : construction and testing of a demonstration inertial electrostatic confinement fusor

Creator:: Holler, Logan R.
Abstract:: Nuclear fusion reactors comprise a significant field of study due to their potential to provide a limitless, clean, and sustainable source of energy. The inertial electrostatic confinement fusor is a type of fusion-generating device that accelerates deuterium gas to the conditions required for fusion. The goal of this research was...
Resource Type:: Honors College Thesis
Full Text:: . APPROVED: _____________________________________________________________________ Brian Woods

Thin-Film Dielectric Structure of Spin-Coated ZrO2 from Aqueous Inorganic Solution

Creator:: Moreno Luna, Hidekel A.
Abstract:: An inorganic aqueous precursor for the deposition of ZrO2 thin films via spincoating was developed. Hydrolysis and condensation chemistries of ZrOCl₂·8H₂O were used as the principal reactions to guide the synthesis. Refractive index, n, for a film annealed at 300 °C at 550 nm was measured to be n=1.97 by...
Resource Type:: Honors College Thesis
Full Text:: : ________________________________________________________________________ Douglas A. Keszler An inorganic aqueous precursor for the deposition of ZrO2 thin films via

Relationships of hydraulic traits and wood morphology in Douglas-fir branches from wet vs. dry regions and sites

Creator:: Flamenco, Herman Noe, Jr.
Abstract:: It is well known that water transport in xylem depends on its anatomy, but recent research shows that water transport through different parts of the growth ring are affected by the water potential in different ways. The goal of the project was to learn the extent to which wood morphology...
Resource Type:: Honors College Thesis
Full Text:: wood morphology in Douglas-fir branches from wet vs. dry regions and sites by Herman Noe

Songbird feathers as indicators of mercury exposure : Patterns across feather tracts and correlations to other tissues

Creator:: Low, Katherine E.
Abstract:: Monitoring mercury (Hg) exposure in avian populations is critical to understanding the effects of this neurotoxin. Avian Hg exposure is commonly evaluated by measuring Hg concentrations in internal tissues, blood, and feathers. Feathers are a popular sampling matrix due to ease of sampling and limited stress to birds. However, it...
Resource Type:: Honors College Thesis
Full Text:: : _____________________________________________________ W. Douglas Robinson Monitoring mercury (Hg) exposure in avian populations is critical to

Ecology and distribution of red crossbill call types in western Oregon

Creator:: Centanni, Caleb
Abstract:: Red Crossbills (Fringillidae: Loxia curvirostra), irruptive finches which feed on conifer seeds, have long presented an evolutionary conundrum. Variable morphology and vocalizations in the species can be classified into several flight call types, which may be discrete lineages. The key conifer hypothesis suggests that each type diverged by specializing on...
Resource Type:: Honors College Thesis
Full Text:: E. of Outer Coast, W. of Willamette, Elev. over 120 m, North of 43.8 degrees N Douglas-fir, western

Avian Community Assembly Following Volcanic Disturbance at Volcán Arenal, Costa Rica and Mount St. Helens, USA

Creator:: Fairchild, Karl C.
Abstract:: Volcanism is an agent of major disturbance in many parts of the world. While the effects of volcanic disturbance are fairly well-known among some groups of species, few studies have been performed in bird communities. Likewise, few studies have attempted to compare how communities in temperate and tropical biomes respond...
Resource Type:: Honors College Thesis
Full Text:: W. Douglas Robinson Volcanism is an agent of major disturbance in many parts of the world

ScholarsArchive@OSU

Micropropagation of Douglas fir (Pseudotsuga menziesii) in a double-phase culture medium

Fifty years of change in a Pacific Northwest winter forest bird community

Vacuum Testing of a Small Radioisotope Thermoelectric Generator

Modeling the Fusion Reaction in an Inertial Electrostatic Confinement Reactor with the Particle-in-Cell Method

Tabletop fusion reactors : construction and testing of a demonstration inertial electrostatic confinement fusor

Thin-Film Dielectric Structure of Spin-Coated ZrO2 from Aqueous Inorganic Solution

Relationships of hydraulic traits and wood morphology in Douglas-fir branches from wet vs. dry regions and sites

Songbird feathers as indicators of mercury exposure : Patterns across feather tracts and correlations to other tissues

Ecology and distribution of red crossbill call types in western Oregon

Avian Community Assembly Following Volcanic Disturbance at Volcán Arenal, Costa Rica and Mount St. Helens, USA

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