Index Catalog // ScholarsArchive@OSU

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

Aryl acetylene substituent effects : the synthesis and application of biaryls

Creator:: Naffziger, Michael R.
Abstract:: The work described herein details the synthesis and application of biphenyls that probe the effects of hydrogen, Cl / Br, and methyl substituents on the aryl ring of the terminal acetylenic carbon. From this work, we successfully developed the rapid synthesis of phenyl acetylenes in 3-4 steps from inexpensive commercially...
Resource Type:: Masters Thesis

Equalizer design for MDFE channels using nonlinear optimization

Creator:: Onu, Dan
Abstract:: Decision feedback equalization (DFE) is a sampled-data technique used for data recovery in digital communications channels. Multi-level decision feedback equalization (MDFE) has been developed for channels using the 2/3(1,7) RLL code. The optimum detector for a digital communication channel affected by ISI and noise consists of a matched filter, followed...
Resource Type:: Masters Thesis
Full Text:: . 2 DATA IN DATA OUT A EC DECODER RLL DECODER EC ENCODER DETECTOR RLL CODER EQUALIZER

Beaver ecology on the west Copper River Delta, Alaska

Creator:: Cooper, Erin E.
Abstract:: Since the 1964 earthquake and geologic uplift, beavers (Castor canadensis) have expanded their historic range from the inland (outwash plain) Copper River Delta, Alaska to the once tidally influenced areas of the outer area (uplifted marsh). The uplift presents a unique opportunity to observe beaver expansion, habitat selection and influence...
Resource Type:: Masters Thesis

Some factors involved in the clarification of whey wine

Creator:: Larson, Peter Kebren
Abstract:: The development of whey beverages including whey wine has been an area of whey utilization research. One study to produce a commercially salable wine from sweet whey, particularly cheddar whey, was undertaken. It included developing a process to clarify the naturally cloudy wine, monitoring the physical and chemical changes which...
Resource Type:: Masters Thesis

Comparison of baits for monitoring the spotted wing Drosophila, Drosophila suzukii

Creator:: Kleiber, Joseph R.
Abstract:: Spotted wing Drosophila (SWD), Drosophila suzukii (Diptera: Drosophilidae), is a pest of small and stone fruits that is widely distributed across much of the United States, Canada, Europe and Asia. Unlike other members of the Drosophilidae that only lay eggs in overripe or rotting fruit, SWD infest ripening and ripe...
Resource Type:: Masters Thesis

Effect of high pressure processing on the survival of Vibrio parahaemolyticus strains in pure culture and Pacific oysters

Creator:: Calik, Hakan
Abstract:: Different strains of Vibrio parahaemolyticus (Vp) in broth cultures and Vp-inoculated live Pacific oysters (Crassostrea gigas) were subjected to high pressure processing (HPP) at 241, 276, 310, and 345 MPa. Results showed Vp numbers were reduced by HPP in both pure culture and whole oysters. Vp inactivation was dependent on...
Resource Type:: Masters Thesis
Full Text:: isolated from estuaries of the United States West Coast. Appl Environ Microbiol 53:1349-1351. Kaysner CA

Evaluation of length distributions and growth variance to improve assessment of the loggerhead sea turtle, (Caretta caretta)

Creator:: Vaughan, Jason R.
Abstract:: Nest counts from the largest subpopulation of the loggerhead sea turtle (Caretta caretta) in the Atlantic, peninsular Florida, have been declining since 1998. Analyzing trends of nests and adult females is insufficient to determine the overall status of a sea turtle population, due to variation in nesting frequency and a...
Resource Type:: Masters Thesis
Full Text:: Coast (EC)............................................ 16 Table 2.2: Proportion of turtles < and

Inhibition of the ammonia oxidizing bacteria Nitrosomonas europaea by the emerging contaminant triclosan

Creator:: Hughes, Jamie L.
Abstract:: Identifying the inhibition of ammonia oxidizing bacteria (AOB) by emerging organic contaminants is crucial due to the importance of AOB in wastewater treatment, the widespread use of antibacterial agents such as triclosan (TCS) in consumer products, and the sensitivity of N. europaea to inhibitors. Triclosan inhibition of nitrification by AOB...
Resource Type:: Masters Thesis

Digital recording and analysis of mass spectra

Creator:: Standley, David Robert
Abstract:: A method has been devised for the digital recording of mass spectra and for reduction of the data by means of the CDC-3300 digital computer. The computer program *MASSPEC was developed to reduce the digital data obtained from a rare-gas mass spectrometer. The author devised a method of determining peak...
Resource Type:: Masters Thesis

System modeling and reactor design study of an advanced incore thermionic space reactor

Creator:: Lee, Hsing Hui
Abstract:: Incore thermionic space reactor design concepts which operate at a nominal power output range of 20 to 50 kWe are described. Details of the neutronic, thermionic, thermal hydraulics and shielding performance are presented. Due to the strong absorption of thermal neutrons by natural tungsten, and the large amount of that...
Resource Type:: Masters Thesis

Creep studies on Pheasant, Narcissus and Chukar aluminum conductors

Creator:: Patton, John Dennis
Abstract:: This thesis is an engineering report on the creep behavior of power transmission line conductors. Laboratory creep test results are reported for Pheasant, Narcissus and Chukar conductors. The report follows a standard nomenclature and format suggested by the International Study Committee No. 6 of Conference Internationale des Grands Reseaux Electriques...
Resource Type:: Masters Thesis
Full Text:: - aluminum conductors are fabricated from strands of EC grade aluminum, hard drawn to ASTM specification

Large scale model testing of the FMC submerged wave attenuation device

Creator:: Huber, David S.
Abstract:: This report describes the hydrodynamic testing and evaluation of a one-tenth scale model of the FMC Wave Attenuation Device. The purpose of the test was to quantify the wave attenuation characteristics and structural loading induced by a test program of monochromatic incident waves on the submerged structure. The device was...
Resource Type:: Masters Thesis

A software package for an intelligent graphic display terminal

Creator:: Nelson, Cecil L.
Abstract:: A cost reduction analysis is performed by coordinating the exchange of LANDSAT (formerly ERTS) data between a CDC 3300 and a PDP8/L minicomputer. The LANDSAT data is displayed on a 4002 Tektronix terminal by means of a grayscale output. Large amounts of data and number manipulation are processed in the...
Resource Type:: Masters Thesis

Influences of clearcut logging on macroinvertebrates in perennial and intermittent headwaters of the Central Oregon Coast Range

Creator:: Banks, Janel
Abstract:: This research was designed to broaden the understanding of how timber-harvest affects aquatic macroinvertebrates in perennial and intermittent headwater streams. This study compared emergent and benthic macroinvertebrate assemblages from 20 headwater streams in the central Oregon Coast Range that varied by harvest condition and flow duration. Through comparison of the...
Resource Type:: Masters Thesis

Escape in Time: Phenology Mitigates Impacts of the Introduced Cinnabar Moth, Tyria jacobaeae, on Native Herb Senecio triangularis in Western Oregon

Creator:: Lunde, A. Katarina
Abstract:: Classic biological control can be a powerful option for those tasked with managing biological invasions; however, some biocontrol releases lead to non-target attack – feeding, damage or development on species other than the target species. The cinnabar moth, Tyria jacobaeae L. (Lepidoptera: Erebidae) was introduced to Western Oregon as a...
Resource Type:: Masters Thesis

Economics of personal airplane operation

Creator:: Skinner, William James
Resource Type:: Masters Thesis
Full Text:: the airplanes of the first two classes. 4. The ec..uin-prbeed foir-pIace family and cross-country

Headwater stream macroinvertebrates of the H.J. Andrews Experimental Forest, Oregon

Creator:: Frady, Charles H.
Abstract:: Recent studies of headwater streams have demonstrated their importance to overall watershed biodiversity, nutrient cycling, and energy flux. However, little attention has been paid to long-term effects of forest harvest on macroinvertebrate communities in headwater streams. This study investigated headwater stream macroinvertebrate communities in the H.J. Andrews Experimental Forest, Oregon,...
Resource Type:: Masters Thesis

The SELCTV database : the susceptibility of arthropod natural enemies to agricultural pests to pesticides

Creator:: Theiling, Karen M.
Abstract:: Documentation of the side effects of pesticides on arthropod natural enemies has expanded rapidly since the 1950's as part of an increase in non-target side effects literature. Most reviews have been based on empirical analysis of selected literature. The SELCTV database was developed to make a larger information base accessible...
Resource Type:: Masters Thesis
Full Text:: : concentration of active ingredient and/or type of preparation for use, e.g., 25%wp (wettable powder), 50%ec

Tactics for enhancing conservation biological control of twospotted spider mites, Tetranychus urticae Koch, in Pacific Northwest hop yards

Creator:: Woods, Joanna L.
Abstract:: The twospotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae), is a worldwide pest of numerous agronomic and horticultural plants. Conservation biological control of this pest can be unreliable due to asynchrony of natural enemies and certain horticultural practices that have a direct or indirect affect on natural enemies and the...
Resource Type:: Masters Thesis

Educational opportunities and schools of the United States Army

Creator:: Darlington, Laurence Edwin
Resource Type:: Masters Thesis

Lichen Functional Trait Variation Along an East-West Climatic Gradient in Oregon and Among Habitats in Katmai National Park, Alaska

Creator:: Spickerman, Kaleigh
Abstract:: Functional traits of vascular plants have been an important component of ecological studies for a number of years; however, in more recent times vascular plant ecologists have begun to formalize a set of key traits and universal system of trait measurement. Many recent studies hypothesize global generality of trait patterns,...
Resource Type:: Masters Thesis

Simulation of a Broiler Breeder Farm

Creator:: Martinez, Maria Elena
Abstract:: This thesis describes a control tool for managers of a Broiler Breeder Farm, a farm which raises chickens for the purpose of fertile egg production. It presents the development of a simulation of a Broiler Breeder Farm which uses a deterministic step by step process to generate expected values of...
Resource Type:: Masters Thesis

Fabrication of a flexible glucose sensing catheter for human implantation

Creator:: Matthews, David J.
Abstract:: Flexible electronics processing techniques were applied to integrate a glucose sensor with a hormone-delivery catheter in order to create a cheap and minimally invasive method for patients with type 1 diabetes to continually monitor and control their blood sugar levels. Ultimately, this work intends to move toward the development of...
Resource Type:: Masters Thesis

Functional analysis of novel β-catenin mutants

Creator:: Al-Fageeh, Mohamed B.
Abstract:: β-catenin is a multi functional protein that is involved in cell-cell adhesion and cell signaling. In non-stimulated cells, β-catenin is tightly down-regulated by GSK-3β-dependent phosphorylation at Ser and Thr residues, followed by rapid ubiquitination and proteasomal degradation. It is well established that mutations within the regulatory GSK-3β region lead to...
Resource Type:: Masters Thesis

Significance of a graphic plot of developmentally delayed children on anthropometric growth charts and its relationship to dietary intake

Creator:: Hughes, Jamie Marie
Abstract:: Twenty-five idiopathic developmentally delayed children between two and ten years old were studied. A group of thirty non-delayed children of like age and sex was used as a control. Dietary information was collected for each subject via a 24-hour dietary recall, a two-day diet record, and a food frequency crosscheck....
Resource Type:: Masters Thesis
Full Text:: -Binet Intelligence Scale (Terman and Merrill 1960), the Weschler Intelligence Scales (Weschler 1349

Uptake and metabolism of polycyclic aromatic hydrocarbons by the marine alga Acrosiphonia coalita

Creator:: Christensen, Kristi
Abstract:: The purpose of this research was to examine the ability of the cold water, green, marine, macroalga Acrosiphonia coalita to take up and metabolize polycyclic aromatic hydrocarbons (PAH) from seawater. Axenic suspension tissue cultures of the alga were contacted with seawater containing PAH in sealed experimental vessels. Uptake time courses...
Resource Type:: Masters Thesis

Risk of work-related musculoskeletal disorders among surgeons: comprehensive question pool development and a pilot study

Creator:: Kia, Kiana
Abstract:: Work-related musculoskeletal disorders (WMSDs) are prevalent among surgeons due to a variety of risk factors. Various subjective tools have been used to investigate the associations between these risk factors and their contributions to the development of WMSDs. This study aimed to provide a summary of a collection of popular subjective...
Resource Type:: Masters Thesis

Evaluation of the torsion test for determining the shear strength of structural lumber

Creator:: Heck, Leanne Renee
Abstract:: The torsion test was evaluated as a method for determining the shear strength of full-size structural lumber. The evaluation involved an experimental length study, an experimental depth study, and a finite element study. The length study consisted of fifty nominal 2x4 specimens, ten specimens for each length, and ten American...
Resource Type:: Masters Thesis

Attitudes of a group of Oregon high school seniors toward home and community problems

Creator:: Staton, Maryanne Kennedy
Resource Type:: Masters Thesis

Sound production in Leperisinus oregonous Blackman and L. californicus Swaine (Coleoptera:Scolytidae)

Creator:: Vernoff, Suellen
Abstract:: Both Leperisinus oregonus and L. californicus are bark beetle species which emerge from Fraxinus latifolia brood logs as sexually immature adults and disperse to living ash. Occasional field observations suggest that, for overwintering and maturation feeding, L. oregonus enter trunks and branches, whereas L.; californicus enter twig crotches, buds and...
Resource Type:: Masters Thesis

Deposition characteristics of magnesium silicate and calcium carbonate in cooling tower water

Creator:: Lee, Sai Heep
Abstract:: Deposition characteristics of magnesium silicate and calcium carbonate on a heated surface in cooling tower water using city water as make-up was investigated. Flow velocity, bulk temperature and calcium hardness were maintained constant at 5.3 ft/ sec, 95°F and 150 ppm as CaCO₃ respectively whereas surface temperature varied from 105°F...
Resource Type:: Masters Thesis

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