Index Catalog // ScholarsArchive@OSU

Correlation of endophyte toxins (ergovaline and lolitrem B) with clinical disease : fescue foot and perennial ryegrass staggers

Creator:: Tor-Agbidye, John
Abstract:: Endophytic fungi (A. coenophialum and A. lolii) which infect grasses produce ergot alkaloids that serve as the grasses' chemical defenses and enhance the vigor of the grass. Turf-type tall fescue with high endophyte levels has been deliberately developed to produce a greener, more vigorous, pest-resistant turf. Consumption of endophyte-infected grass...
Resource Type:: Masters Thesis
Full Text:: JOHN TOR-AGBIDYE for the degree of Master of Science in Veterinary Science presented on August 13

A filter paper assay for low cellulase activities and the cultivation of Trichoderma reesei on acid whey and sweet whey permeate

Creator:: Nordmark, Tor Soren
Abstract:: The traditional filter paper assay for saccharifying cellulase originally described by M. Mandels et al (1976) has been modified to make possible low activity determinations of Trichoderma cellulases. The enzymatic activity appears to decline during a prolonged incubation period if no precautions have been taken. By means of adding bovine...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Tor Soren Nordmark for the

The John Day formation in the Picture Gorge quadrangle, Oregon

Creator:: Coleman, Robert Griffin, 1923-
Resource Type:: Masters Thesis
Full Text:: The John Day formation in the Picture Gorge quadrangle

Material development for thin-film transistors

Creator:: Archila, Kevin Alexander
Abstract:: The focus of this thesis is developing materials for thin-film transistors (TFTs). Cu₃SbS₄ is explored as p-channel layer. Cu₃SbS₄ TFTs show p-type, depletion-mode behavior with a small amount of gate-controlled modulation of the channel conductance. This behavior is consistent with Hall measurements indicating a mobility of 17 cm²V⁻¹s⁻¹ and hole...
Resource Type:: Masters Thesis
Full Text:: Transistors Abstract approved: John F. Wager The focus of this thesis is developing materials for thin-film

Amorphous multi-component metals as electrode materials

Creator:: Cowell, E. William
Abstract:: The objective of this thesis is to provide an initial demonstration of two-terminal and three-terminal electronic devices employing amorphous multi-component metallic film (AMMF) electrodes. Such a demonstration is successfully achieved in the fabrication of metal-insulator-metal (MIM) diode and hot electron transistor (HETs) structures employing ZrCuAlNi AMMF electrodes. The ultra-smooth surface...
Resource Type:: Masters Thesis
Full Text:: : Amorphous Multi-Component Metals as Electrode Materials. Abstract approved: John F. Wager The objective

Tertiary amine complexes of cobalt (II) and nickel (II) trifluoromethanesulfonates

Creator:: Jansky, Michael Thelen
Abstract:: Hydrated cobalt(II) and nickel(II) trifluoromethanesulfonates have been prepared by a previously reported procedure, and have been characterized for the first time as [ Co(H₂O)₆] (CF₃SO₃)₂H₂O and [Ni(H₂O)₆] (CF₃SO₃)₂. These formulations are based on analyses, near-infrared spectra, and on measurements of the ligand field electronic spectra and the magnetic susceptibilities. The...
Resource Type:: Masters Thesis
Full Text:: , Dr. John T. Yoke, who provided encouragement and incentive when needed. To my wife, Cindy, a

Synthetic Lubricant Performance in Enclosed Gearbox Applications at Extreme Temperature

Creator:: Marr, Carter J.
Abstract:: The goal of this paper is to evaluate how synthetic lubricants perform in an enclosed gearbox application when compared with a proven mineral oil. This is in an effort to improve gearbox efficiency with the desired effect of lower emissions from of improved energy output from power generation. Four liquid...
Resource Type:: Masters Thesis
Full Text:: Lubricant Performance in Enclosed Gearbox Applications at Extreme Temperature Abstract approved: John

Improved Lubrication Performance of Chainsaw Cutting Systems

Creator:: Sellars, Patrick V.
Abstract:: Chainsaws serve as one of the primary tools used by logging corporations, ranches, and farms for forestry management. Lubricating oil remains one of the heaviest operational expenditures for chainsaws. This largely in part due to chainsaw lubrication being a total loss system in which nearly all lubricating oil applied is...
Resource Type:: Masters Thesis
Full Text:: Lubrication Performance of Chainsaw Cutting Systems. Abstract approved: John Parmigiani Chainsaws serve as

Communication Styles Used by Male and Female Executives to Handle Conflict with Subordinates

Creator:: Rahmun, Lindsay
Abstract:: This study examines the self-reported behavior and ideals of a sample of upper level managers, in relation to conflict management with subordinates. A survey developed by the author, which measures directive and participative managerial behavior and ideals, was sent to a randomly selected sample of 250 female and 250 male...
Resource Type:: Masters Thesis
Full Text:: Executives to Handle Conflict with Subordinates. Abstract approved: 7) Redacted for Privacy John Keltner

A method of analysis for tritium as hydrogen gas

Creator:: Smith, William Alton, 1921-
Resource Type:: Masters Thesis
Full Text:: submitted to OBEGON STATE COLLEGE ln putlal tuUUl.raant ot the requirements tor the degree or MASTER

Transient characteristics of a tuned ground-fault neutralizer system

Creator:: Chow, Chung Wei
Resource Type:: Masters Thesis
Full Text:: . 1'be fault a tor Which th P.c. gtvee protection are transient tn nature and 1t 1a the behavior

Transmission line tower location on non-flat terrain by digital computer methods

Creator:: Phaloprakarn, Somkiet
Abstract:: A method of locating electric transmission line towers using ground survey data in a digital computer program is presented in this thesis. The towers are located for maximum spacing subject to the constraints of available tower heights, forbidden ground areas, minimum ground clearance, and specified conductor tensions. The digital method...
Resource Type:: Masters Thesis
Full Text:: Electrical Safety Code (NESC) specified the conduc- tor loading as follows: The loading on conductors sha1l

A programmable BiCMOS transconductance-capacitor filter for high frequencies

Creator:: Beck, Jeffery S.
Abstract:: With advancements in CMOS technology, high speed analog circuits that were traditionally implemented with discrete circuit components can now be made monolithically. Antialiasing filters for video signals as well as signal conditioning filters in high speed communication channels are examples of applications where high frequency integrated circuits are now feasible....
Resource Type:: Masters Thesis
Full Text:: Transconductance-Capacitor Filter for High Frequencies Abstract approved: Redacted for Privacy John G. Kr)ey

Experimental characterization of saw chain cutting performance

Creator:: Otto, Andrew W.
Abstract:: Chainsaw users value cutting performance and safety. Knowledge of the forces exerted during sawing are necessary to understand and improve the cutting performance of saw chain. Additionally, cutting forces can be used to form metrics for evaluating performance tradeoffs when using a safety (i.e. low-kickback) saw chain versus a standard...
Resource Type:: Masters Thesis
Full Text:: : __________________________________________________________________ John P. Parmigiani Chainsaw users value cutting performance and safety. Knowledge of

The pathogenesis, diagnosis and treatment of canine allergic and bacterial dermatitis

Creator:: Nesbitt, Gene H.
Abstract:: The pathogenesis, diagnosis and treatment of bacterial dermatitis and various canine allergic dermatitidies including allergic inhalant dermatitis, contact dermatitis and flea allergy dermatitis were studied. The effect of specific nonprotein and protein components of commercial flea antigens on the gross and microscopic appearance of intradermal injections was investigated. Additionally, a...
Resource Type:: Masters Thesis
Full Text:: ,7 John A. Schmitz D.V.M., Ph The pathogenesis, diagnosis and treatment of bacterial dermatitis and

Digital investigation of switching transients from an impedance shunted circuit-breaker

Creator:: Harvey, Peter
Resource Type:: Masters Thesis
Full Text:: syst.ms tor systems for transient j higher traasient initial 'j derivatives > ourrent conditions. èf

Transparent electronics : thin-film transistors and integrated circuits

Creator:: Presley, Rick E.
Abstract:: This thesis focuses on two aspects of transparent electronics, SnO₂ transparent thin-film transistors (TTFTs) and transparent circuits. Both depletion- and enhancement-mode SnO₂ TTFTs are realized. The maximum effective mobility for the depletion- and enhancement-mode devices are 2 cm²V⁻¹s⁻¹ and 0.8 cm²V⁻¹s⁻¹, respectively. A variety of techniques to decrease the carrier...
Resource Type:: Masters Thesis
Full Text:: . Title: Transparent Electronics: Thin-Film Transistors and Integrated Circuits Abstract approved: John

A method of improving power system transient stability using controllable parameters

Creator:: Mittelstadt, William Andrew
Abstract:: Controllable parameters in a power system include generator terminal voltage, generator input power and network admittances. These parameters can be controlled to damp mechanical rotor oscillation in the generators and thereby improve system transient stability. Explicit equations are derived in this thesis for the control of these parameters to introduce...
Resource Type:: Masters Thesis
Full Text:: approved: John L. Sauge Controllable parameters in a power system include genera- tor terminal

ACTFEL phosphor deposition by RF sputtering

Creator:: Ang, Wie Ming
Resource Type:: Masters Thesis
Full Text:: Privacy Abstract approved: Dr. John F. W ger In this thesis, a research program with the goal of

Flux measurements in the Oregon State TRIGA reactor

Creator:: Upham, Gary Lamont
Abstract:: Neutron flux and gamma-ray dose have been measured in the experimental facilities of the Oregon State TRIGA reactor. Thermal neutron flux measurements utilized foil activation techniques. The gamma-ray dose was measured with a thermoluminescent dosimetry system. The thermoluminescent material used was LiF. Fast neutron spectrum measurements were performed. The fast...
Resource Type:: Masters Thesis
Full Text:: TRIGA REACTOR Abstract approved: John C. Ringle Neutron flux and gamma -ray dose have been

Parameter sensitivity algorithm for a digitally-modelled direct current excitation system

Creator:: Dearborn, Barry Claude
Abstract:: An algorithm for computing the parameter sensitivities of an excitation system for a hydroelectric generation system is developed for model analysis in this thesis. The IEEE Type 1 excitation system representation, linked with a simplified alternator and voltage regulator equivalent, provide a closed-loop model for digital simulation. Parametric sensitivities are...
Resource Type:: Masters Thesis
Full Text:: Claude Dearborn ACKNOWLEDGEMENTS The author desires to express deep appreciation to Professor John F

Isothermal aging of vapor deposited aluminum-copper alloy films

Creator:: McBee, William C.
Resource Type:: Masters Thesis
Full Text:: : Redacted for Privacy Drr John A. McComb Aluminum 4 weight percent copper alloy films were prepared by

Ferroelectric thin film development

Creator:: Harman, Taran V.
Abstract:: The long-term goal of the research project initiated with this thesis is the development of lead-free, fully-transparent ferroelectric devices, such as ferroelectric capacitors or ferroelectric-gate field-effect transistors. Ferroelectric materials exhibit spontaneous polarization with the application of an external electric field, which is persistent upon removal of the applied field, and...
Resource Type:: Masters Thesis
Full Text:: : Ferroelectric Thin Film Development . Abstract approved: John F. Wager The long-term goal of the research

Characterization of solution-based inorganic semiconductor and dielectric materials for inkjet printed electronics

Creator:: Munsee, Craig L.
Abstract:: The long-term goal of this research project is the development of solution-based inorganic dielectric and semiconductor materials for inkjet printed electronics. The main focus of this thesis involves testing of the materials and devices under development. A new solution-based inorganic dielectric material (HfOSO₄), given the name hafsox, is developed and...
Resource Type:: Masters Thesis
Full Text:: capaci- tor over the frequency range from 100 Hz to 1 MHz................. 42 LIST OF FIGURES

Optimum transient response of a Kaplan turbine generator system determined from mathematical models

Creator:: Meloy, Glenn R.
Abstract:: This thesis proposes a criteria for the evaluation of those variable parameters that influence the response of a hydroelectric generator driven by a hydraulic turbine of the Kaplan type. It is considered a requirement that a unit must be stable when supplying an isolated load and it is assumed that...
Resource Type:: Masters Thesis
Full Text:: parameters that influence the response of a hydroelectric genera- tor driven by a hydraulic turbine of the

Amorphous oxide semiconductors in circuit applications

Creator:: McFarlane, Brian Ross
Abstract:: The focus of this thesis is the investigation of thin-film transistors (TFTs) based on amorphous oxide semiconductors (AOSs) in two circuit applications. To date, circuits implemented with AOS-based TFTs have been primarily enhancement-enhancement inverters, ring oscillators based on these inverters operating at peak frequencies up to ~400 kHz, and two-transistor...
Resource Type:: Masters Thesis
Full Text:: : Amorphous Oxide Semiconductors in Circuit Applications Abstract approved: John F. Wager The focus of this

An alternating current, resistance analog network simulator for A-C power system stability studies

Creator:: Barton, Donald Roger
Resource Type:: Masters Thesis
Full Text:: alninl*tor theory. Th. positive direction for power and vare will be takei when these quantities

Development, fabrication, and characterization of transparent electronic devices

Creator:: Hoffman, Randy L.
Abstract:: The objective of this thesis is to provide an initial demonstration of the feasibility of constructing highly transparent active electronic devices. Such a demonstration is successfully achieved in the fabrication of ZnO-based thin film transistors (TFTs) exhibiting transparency greater than ~90% in the visible portion of the electromagnetic spectrum and...
Resource Type:: Masters Thesis
Full Text:: : Develonment. Fabrication, and Characterization of Transparent Electronic Devices. Abstract approved: John F

A novel method for zinc oxide nanowire sensor fabrication

Creator:: Pelatt, Brian D.
Abstract:: Interest in nanomaterials is motivated partly by their potential for sensor arrays to detect different gases. Nanowires in particular are of interest because their high surface-to-volume ratio promises the possibility of high sensitivity. However, because of their discrete quasi-one-dimensional geometry, electrical integration of nanowires into photolithographically defined devices and circuits...
Resource Type:: Masters Thesis
Full Text:: Novel Method for Zinc Oxide Nanowire Sensor Fabrication Abstract approved: John F. Conley, Jr

Transmission line tower location by digital computer methods using a parabolic approximation

Creator:: Hotrabhavananda, Kajornsak
Abstract:: In this thesis, a digital computer method for locating transmission line towers is presented. The computer program selects the position of both angle and tangent type towers for a given ground profile. This selection will provide a minimum cost per foot of transmission line in terms of the average costs...
Resource Type:: Masters Thesis
Full Text:: APPROXIMATION Redacted for privacy Abstract approved: John F. Engle/ In this thesis, a digital computer method

Some impacts of the rice export tax on the rice economy in Thailand

Creator:: Rachapaetayakom, Linchong
Resource Type:: Masters Thesis
Full Text:: information technique, by Dr. John A, Edwards of Oregon State University, Professor of Agricultural

Digital model of a synchronous generator excitation system

Creator:: Ramchandani, Hiranand Balchand
Abstract:: This thesis develops a simplified and logical simulation model for an amplidyne excitation system for a synchronous generator with an automatic voltage regulator. The non-transfer function representation using field determined parameters including variable inductance and machine saturation was used to reduce the computing time for the stability analysis. The simulation...
Resource Type:: Masters Thesis
Full Text:: MODEL OF A SYNCHRONOUS GENERATOR EXCITATION SYSTEM Redacted for privacy Abstract approved:i John. F

The role of detoxification in the resistance of the male rat to evipal (sodium methyl-cyclo-hexenyl-N-methyl barbiturate)

Creator:: Karsh, Max Leon
Resource Type:: Masters Thesis
Full Text:: ACKNOWLEDGN1NT The writer wiahes to acknowledge and express his appreciation to Dr. John W. Nelson, of the

Calculation of the reactivity change from voiding the heavy water coolant of the plutonium recycle test reactor

Creator:: Maryott, James Lee
Abstract:: A method is developed for calculating the reactivity worth of the heavy water coolant of the Plutonium Recycle Test Reactor (PRTR). The coolant reactivity worth is determined by calculating the effective multiplication constant of the reactor core with and without the coolant in given process tubes. The calculational method includes...
Resource Type:: Masters Thesis
Full Text:: Reactor Abstr.act approved: Redacted for Privacy Dr -John C. Rife A method is developed for

Kinematics and return flow in a closed wave flume

Creator:: Ramsden, Jerald Day
Resource Type:: Masters Thesis
Full Text:: approved: / Dr. John H. Nath When periodic progressing surface waves are confined in a closed flume, a

Al-In-Sn-O thin-film transistors

Creator:: Stewart, Kevin A.
Abstract:: The aim of the research undertaken for this thesis was to develop a new high-performance amorphous oxide semiconductor (AOS) for use as a channel layer in a thin-film transistor (TFT). AOS TFTs offer higher electron mobility than the established amorphous silicon based technology. A new channel material comprised of aluminum...
Resource Type:: Masters Thesis
Full Text:: presented on February 13, 2015. Title: Al-In-Sn-O Thin-Film Transistors Abstract approved: John F

Digital simulation of a load-peaking generation station located in a tidal estuary

Creator:: Husband, James Harris
Abstract:: This simulation is a model for a tidal power-peaking plant that can be used to determine the electrical peaking generation for a given set of conditions. The simulation internally contains a tide producing function for a specific year, the hydraulic characteristics of the plant, and the plant's machines' characteristics. The...
Resource Type:: Masters Thesis
Full Text:: for each mode is also submitted to the opera- tor. 22 III. COMMENT ON THE SIMULATION

Design and calibration of a deep ocean nuclear moisture meter

Creator:: Hurley, James Leo
Abstract:: A prototype deep ocean nuclear moisture meter was developed based on the detection of epithermal neutrons backscattered from marine sediment molecules. Development consisted of choosing a source, a detector, containment materials, and associated counting equipment, followed by the construction and calibration of the probe. Thermal neutron response of the probe...
Resource Type:: Masters Thesis
Full Text:: NUCLEAR MOISTURE METER Abstract approved: Redacted for Privacy John C. Ringe A prototype deep ocean

The response of mountain and valley winds to changes of synoptic weather type in an area of complex topography

Creator:: Ayer, Harold Stevens
Resource Type:: Masters Thesis
Full Text:: antl.cyol.aalc raather tt tor.- rhat eubJrctkrl trlt lt, ls belloved that anothar luvcrtlgrtor fad.llar rtth the

Oxide phosphors deposited by activated reactive evaporation for ACTFEL device applications

Creator:: Yokoyama, Tomoe
Abstract:: The goal of this thesis study is to develop an activated reactive evaporation (ARE) system and to demonstrate its utility by fabricating-alternating current thin-film electroluminescent (ACTFEL) oxide phosphor devices. ARE entails evaporation in an activated gas. The main ARE system components are three thermal evaporation sources, a microwave power supply,...
Resource Type:: Masters Thesis
Full Text:: Phosphors Deposited by Activated Reactive Evaporation for ACTFEL Device pp1ic Abstract approved: John F

p-type transparent electronics

Creator:: Valencia, Melinda Marie
Abstract:: The objective of this thesis is to contribute to the development of p-type materials for transparent electronics applications. Thin films of ®-BaCu2S2, a p-type semi-transparent semiconductor, are fabricated and characterized. ®-BaCu2S2 has a transmittance of 60% to 80 % in the visible portion of the electromagnetic spectrum. The mobility, conductivity,...
Resource Type:: Masters Thesis
Full Text:: , 2003. Title: p-Type Transparent Electronics. Abstract approved: John F. Wager The objective of this

Adaptive Movement Intent Decoding for Intuitive Control of Neuroprostheses

Creator:: George, Damon A.
Abstract:: Movement intent decoders, which interpret volitional movement intent from human bioelectric signals, can be incorporated into modern neuroprostheses to offer people living with limb loss or paralysis the potential to regain their lost motor control. Machine learning methods have become the research standard for continuous decoders with high degrees of...
Resource Type:: Masters Thesis
Full Text:: Decoding for Intuitive Control of Neuroprostheses Abstract approved: V John Mathews In the United States

The design, construction and calibration of a low-energy, low exposure-rate ionization chamber

Creator:: Clarke, Arthur Porter
Abstract:: A low-energy, low-exposure-rate, guarded-field ionization chamber system with a sensitive volume of approximately 1040 cm³ and an exposure-rate range from 60 mR/h to less than 0.5 mR/h was designed, constructed and calibrated. The calibration was effected by constructing and calibrating a 60 cm³ volume transfer chamber of similar design against...
Resource Type:: Masters Thesis
Full Text:: IONIZATION CHAMBER Abstract approved: Redacted for Privacy John P. Kelley 3 A low-energy, low-exposure

Combustion gas emissions spectra of Otto cycle engine operating on H₂, CO, and gasoline using a calibrated vidicon detector spectrometer

Creator:: Freeburn, Scott Alan
Abstract:: The capabilities of the Tektronix Model J2C/7J20 Rapid Scanning Spectrometer for the determination of molecular species resulting from Otto cycle combustion were experimentally investigated after a literature search of the subject area. Combustion of hydrogen-air, carbon monoxideair, and gasoline-air mixtures in the combustion chamber of a Cooperative Fuel Research engine...
Resource Type:: Masters Thesis
Full Text:: John G. Mitre The capabilities of the Tektronix Model J2C/7J20 Rapid Scanning Spectrometer for the

Phase noise models for single-ended ring oscillators

Creator:: Godbole, Devavrata
Abstract:: The tremendous growth of wireless and mobile communications has resulted in placing of stringent requirements on the channel spacing and, by implication, on the phase noise of oscillators, typically mandating the use of passive LC oscillators with high quality factor (Q). However the trend towards large-scale integration and low cost...
Resource Type:: Masters Thesis
Full Text:: OSCILLATORS. Abstract approved: ___ q....t.- ___. John T. Stonick The tremendous growth of wireless and

Soil water ponding and its relationship to sprinkler application rates, initial moisture contents, and uniformity of storage

Creator:: Vongsuri, Sommai
Resource Type:: Masters Thesis
Full Text:: available for the study of this thesis problem. To Dr. John W. Wolfe, I wish to acknowledge his kindness

Investigation of ultra-thin In-Ga-Zn-O thin-film transistors

Creator:: Chiang, Tsung-Han
Abstract:: The objective of the work reported herein is to explore the impact of decreasing channel thickness on radio-frequency (RF) sputtered amorphous indium-gallium-zinc oxide (a-IGZO) thin-ﬁlm transistors (TFTs) electrical performance through the evaluation of drain current versus gate voltage (I[subscript D] − V[subscript G]) transfer curves. For a ﬁxed set of...
Resource Type:: Masters Thesis
Full Text:: : Investigation of Ultra-thin In-Ga-Zn-O Thin-Film Transistors Abstract approved: John F. Wager The objective

High speed buffers for op-amp characterization

Creator:: Rangan, Giri N. K.
Abstract:: The feasibility of developing test circuits to perform in-circuit testing of analog circuits is investigated in this thesis. A modular approach to analog testing has been adopted. Accordingly, the testing of an operational amplifier, which is a basic building block in analog circuits, is addressed. One convenient technique for measuring...
Resource Type:: Masters Thesis
Full Text:: : High Speed Buffers.for Op amp Characterization Abstract approved: ' / John G. ey ,..... The

Efficient digital predistortion techniques for power amplifier linearization

Creator:: Zhuo, Min
Abstract:: The importance of spectral efficiency in mobile communications often requires the use of non-constant-envelop linear digital modulation schemes. These modulation techniques carry signal information in both magnitude and phase, thus they must be linearly amplified to avoid nonlinear signal distortion which is not correctable in a typical receiver. A second...
Resource Type:: Masters Thesis
Full Text:: Techniques for Power Amplifier Linearization. Abstract approved: John T. Stonick The importance of

The analysis and design of a broadband microwave buffer amplifier

Creator:: Dunsmore, Joel P.
Abstract:: In microwave network analysis, proper matching of the measurement system is necessary to prevent measurement errors and provide a proper terminating impedance for the device-under-test. To obtain this matching, a buffer amplifier is often used in the first stage of the network analyzer. This study describes the design and analysis...
Resource Type:: Masters Thesis

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