Index Catalog // ScholarsArchive@OSU

Design, Construction, and Evaluation of a Miniature Swing

Creator:: Smith, Matthew
Abstract:: A swing arm compressor was designed, built, and tested as an undergraduate senior design project for Dr. Richard Peterson. The system developed, while not functioning entirely as desired, gave some initial data and a good base of knowledge for a second iteration of the project. This thesis describes in detail...
Resource Type:: Honors College Thesis
Full Text:: : ____________________________________ Richard Peterson A swing arm compressor was designed, built, and tested as an

Applications of the thermal wave technique in liquid thermal conductivity measurements and flow field diagnostics

Creator:: Wang, Zhefu
Abstract:: The thermal wave technique has been explored for the use of liquid thermal conductivity measurement and flow property diagnostics in this dissertation. For liquid thermal conductivity measurements, an experimental technique based on the thermal wave approach is developed. A stainless steel strip functions as both a heating element and a...
Resource Type:: Dissertation
Full Text:: :______________________________________________________ Richard B. Peterson The thermal wave technique has been explored for the use of liquid

Modeling and optimization of a combined cycle Stirling-ORC system and design of an integrated microchannel Stirling heat rejector

Creator:: Ingram-Goble, Robbie
Abstract:: The performance of a combined Stirling-ORC power cycle is evaluated, and an integrated microchannel heat exchanger is designed as an annular cold-side heat rejector for a free piston Stirling engine. Reasonable designs for a combined cycle can increased power output efficiency by 3 - 9% compared to that of a...
Resource Type:: Masters Thesis
Full Text:: Stirling Heat Rejector Abstract approved: Richard B. Peterson The performance of a combined Stirling-ORC

Design considerations for a miniature atmospheric engine with a magnet-actuated autonomously-reciprocating in-cylinder regenerator for portable power production

Creator:: Yarger, David J.
Abstract:: Driven by the need for high energy-density power sources, demand has stimulated the development of small-scale engines. A small-scale engine with a fuel supply could replace batteries and utilize higher energy-density liquid hydrocarbon fuels; such an advance could deliver a new age of portable devices. Currently, operable small-scale engines exist;...
Resource Type:: Masters Thesis
Full Text:: Regenerator for Portable Power Production. Abstract approved: Richard B. Peterson Driven by the need for

An exploration of microcombustor feasibility

Creator:: Hatfield, Jonathan M.
Abstract:: The goals of this research were first to examine flame quenching in tubing smaller than the quench diameter, and then to place lower size limits on microcombustor and microreactor systems by studying a catalytic microcombustor burning propane. In the first set of experiments, flame quenching was examined as a function...
Resource Type:: Masters Thesis
Full Text:: Exploration of Microcombustor Feasibility. Abstract approved: Dr. Richard Peterson The goals of this

Design and performance of a small scale waste heat recovery unit

Creator:: Ward, Christopher
Abstract:: A microchannel heat exchanger was designed for diesel waste heat recovery and its performance was evaluated. The 21x15x8 cm unit was constructed from diffusion brazed stainless steel lamina and weighed 11 kg. Operating from a 13.4 kW generator with an exhaust temperature of 500 °C the unit delivered 11.1 kW...
Resource Type:: Masters Thesis
Full Text:: : Richard B. Peterson A microchannel heat exchanger was designed for diesel waste heat recovery and

Single- and multi-functional arrayed microchannel fluidic devices

Creator:: Fisher, Luke W.
Abstract:: Novel fluidic devices that utilize an array of microchannels to achieve their designed purpose are discussed. Examples of devices include: fuel reforming using Microreactors, chip cooling using microchannel heat sinks, and microchannel devices used for biological applications. The devices that have directly contributed to this research include: a microchannel water...
Resource Type:: Masters Thesis
Full Text:: approved: ______________________________________________________ Richard B. Peterson Novel

Light Pollution and the Limiting Visual Magnitude in Corvallis, Oregon

Creator:: Grellmann, Carsten Christof
Abstract:: This study sought to ascertain the degree to which the night sky of Corvallis is affected by light pollution by determining the limiting visual magnitude. Defined as the brightness of the dimmest star that can be seen with the averted naked eye, the limiting visual magnitude establishes a quantitative standard...
Resource Type:: Honors College Thesis
Full Text:: , Oregon. Abstract approved: Richard Peterson

The geometric characterization and thermal performance of a microchannel heat exchanger for diesel engine waste heat recovery

Creator:: Yih, James S.
Abstract:: Rising energy demands and the continual push to find more energy efficient technologies have been the impetus for the investigation of waste heat recovery techniques. Diesel engine exhaust heat utilization has the potential to significantly reduce the consumption of fossil fuels and reduce the release of greenhouse gases, because diesel...
Resource Type:: Masters Thesis
Full Text:: Exchanger for Diesel Engine Waste Heat Recovery Abstract approved: Richard B. Peterson

An American College Experience: It Tastes Like Burning

Creator:: Shapiro, David L.
Abstract:: A collection of short stories in the style of flash fiction. The themes of the stories include relationships, legality, and friendship. The stories are connect by themes, cross self-referencing, repetition, fragmentation, and characters. The main unifying feature is the characterization of the narrator through his response and commentary. The styles...
Resource Type:: Honors College Thesis
Full Text:: . Abstract approved: _________________________________________________ Eric Hill A collection of

Investigation of the dimensional stability of an ultra-thin film gas/liquid contactor

Creator:: Peterson, Jerrod P.
Abstract:: The use of a permeable membrane to mechanically constrain a film of water with an area of 12 cm² and a thickness of 150 μm in a gas/liquid contactor was investigated. The membrane separated the vapor and liquid phases, and a stiffener plate made from a gas-permeable material was used...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Jerrod P. Peterson for the degree

Design, modeling, and performance of miniature reciprocating thermocompressor

Creator:: Edwards, Michael J.
Abstract:: Research in the miniaturization of thermomechanical systems in recent years has proven to be both rewarding and challenging. Micro-scale devices have tremendous technological potential but come with a new set of design problems. One such problem is energy storage. Heat actuated systems, driven primarily by thermal energy, take advantage of...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: __ _..,....~=~~--=-~-~~-~-~~"'----'-==--- Richard B. Peterson Research in the

A computational model for resonantly coupled alpha free-piston Stirling Coolers

Creator:: Al-Hazmy, Majed Mualla H.
Abstract:: A computational model for a resonantly coupled alpha free-piston Stirling cooler is presented. The cooler consists of two isothermal working spaces for compression and expansion connected by a regenerator consisting of a stack of narrow parallel channels. The regenerator is assumed to have a linear temperature distribution along its axial...
Resource Type:: Dissertation
Full Text:: . Peterson A computational model for a resonantly coupled alpha free-piston Stirling cooler is presented

Integrated dual cycle energy recovery using thermoelectric conversion and an organic Rankine bottoming cycle

Creator:: Miller, Erik W.
Abstract:: Hot engine exhaust and industrial process exhaust represents a resource that is often rejected to the environment without further utilization. This resource is prevalent in the transportation and industrial process sectors, but stationary engine-generator systems also typically do not utilize this resource. Engine exhaust is considered high grade heat and...
Resource Type:: Masters Thesis
Full Text:: . Peterson Hot engine exhaust and industrial process exhaust represents a resource that is often

Thermal characterization technique for thin dielectric films

Creator:: Indermuehle, Scott W.
Abstract:: A phase sensitive measurement technique that permits the simultaneous determination of two independent thermal properties of thin dielectric films is presented. Applying the technique results in a film's thermal diffusivity and effusivity, from which the thermal conductivity and specific heat can be calculated. The technique involves measuring a specimen's front...
Resource Type:: Masters Thesis
Full Text:: Dielectric Films. Abstract approved: Richard B. Peterson A phase sensitive measurement technique that

Mixed reactant single chamber fuel cell, using products generated from the electrolysis of an aqueous electrolyte

Creator:: Jost, William C.
Abstract:: A Mixed Reactant Single Chamber (MRSC) Fuel Cell is a relatively recent concept in the field of fuel cell engineering originally developed in the late 1950’s. Typical fuel cells have separated reactants (a separated fuel and oxidizer) that react on their usually non-selective electro-catalytic materials. A mixed reactant fuel cell...
Resource Type:: Masters Thesis
Full Text:: : ___________________________________________________________________ Richard B. Peterson A Mixed Reactant Single Chamber (MRSC) Fuel Cell is a relatively recent

Design, modeling and performance of miniature reciprocating expander for a heat actuated heat pump

Creator:: Herron, Thomas G.
Abstract:: A miniature reciprocating expander is being developed as part of a larger program to develop a heat actuated heat pump for portable applications. By utilizing the higher energy density of liquid hydrocarbon fuels relative to batteries, a heat actuated heat pump would be able to provide cooling for much longer...
Resource Type:: Masters Thesis
Full Text:: : - / - .- Richard B. Peterson A miniature reciprocating expander is being developed as part of a larger program to

Temperature measurement, electrical characteristics, and lorentz mixing of alkali seeded flames

Creator:: Pattee, Heidi Ann
Abstract:: When trace quantities of an alkali element are added to a flame, its optical and electrical properties change significantly. Addition of alkali seed to both premixed and diffusion flames has been used in the development of two new techniques, one for flame temperature measurement and the other for enhanced mixing....
Resource Type:: Dissertation
Full Text:: Abstract approved: Richard B. Peterson When trace quantities of an alkali element are added to a flame

Development of a small scale scroll expander

Creator:: Harada, Kevin J.
Abstract:: The organic Rankine cycle (ORC) is a versatile approach in the utilization of waste heat in the production of electricity, clean drinking water, and cooling. The efficiency of these cycles must be maximized to make them economical. Parameters for the optimization of ORCs such as evaporator and condenser temperature have...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: Richard B. Peterson The organic Rankine cycle (ORC) is a versatile approach

A study of a diffusionally controlled reactive synthesis process using a multi-tube diffusion flame burner

Creator:: Snell, Douglas C.
Abstract:: A continuous process for the production of ceramic materials has been studied. This method reacted metal and oxidizer in a diffusionally controlled process, demonstrated by reacting a magnesium particle stream and hot water vapor. Many small rich hydrogen/air diffusion flames provide an atmosphere of hot water vapor, hydrogen, and nitrogen...
Resource Type:: Dissertation
Full Text:: approved: Richard B. Peterson A continuous process for the production of ceramic materials has been

Micro adiabatic combustion engine : concept development, simulation and combustion experiments

Creator:: Chewning, Scott R.
Abstract:: The current proliferation of portable electronic devices for personal communication, business and entertainment has created a demand for high energy density power supplies. A hydrocarbon fuel with a conversion efficiency of over 15% can provide greater energy density than current battery technology for these applications. Current micro-scale heat engines do...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: Richard B. Peterson The current proliferation of portable electronic devices

Direct-sampling optical techniques for the study of transient combustion events

Creator:: Herron, John R.
Abstract:: Techniques have been developed for measuring the temperature, stable species concentrations, and atomic radical concentrations during a transient combustion event. They combine the features of direct sampling with two spectroscopic techniques to produce relatively simple diagnostic techniques to obtain time-resolved measurements. In this study, a transient event was provided by...
Resource Type:: Dissertation
Full Text:: . Peterson Techniques have been developed for measuring the temperature, stable species concentrations, and

An experimental study of flow boiling heat transfer enhancement in minichannels with porous mesh heating wall

Creator:: Wang, Hailei
Abstract:: A unique channel surface enhancement technique via diffusion-bonding a layer of conductive fine wire mesh onto the heating wall was developed and used to experimentally study flow boiling enhancement in parallel microchannels. Each channel was 1000 μm wide and 510 μm high. A dielectric working fluid, HFE 7000, was used...
Resource Type:: Dissertation
Full Text:: to his academic advisor Dr. Richard Peterson for his continuous guidance and support during his

Frequency and phase response of a resonantly-coupled alpha Stirling cooler

Creator:: Sripakagorn, Paiboon
Abstract:: A resonantly-coupled α-Stirling (RCAS) cooler was designed and constructed. Tests on air and helium were performed with constant driving displacement over a range of frequencies. The effects of changing driving amplitude and charged pressure were studied. The use of stainless steel bellows in place of pistons eliminated the problem of...
Resource Type:: Masters Thesis
Full Text:: - Coupled Alpha Stirling Cooler. Abstract approved: Richard B. Peterson A resonantly-coupled a-Stirling

Monitoring and diagnosis of a multi-stage manufacturing process using Bayesian networks

Creator:: Wolbrecht, Eric T.
Abstract:: This thesis describes the application of Bayesian networks for monitoring and diagnosis of a multi-stage manufacturing process, specifically a high speed production part at Hewlett Packard. Bayesian network "part models" were designed to represent individual parts in-process. These were combined to form a "process model", which is a Bayesian network...
Resource Type:: Masters Thesis
Full Text:: process using Bayesian networks AN ABSTRACT OF THE THESIS OF Eric T. Wolbrecht for the degree of Master

Interactions of a fully modulated inclined jet with a crossflow

Creator:: Dano, Bertrand P. E.
Abstract:: Jets in crossflow are used in a wide range of engineering applications and have been studied for more than 60 years. The transversal penetration and structure of a jet placed in a crossflow is known to be strongly three-dimensional. It is believed that, by using a pulsed jet inclined in...
Resource Type:: Dissertation
Full Text:: fgineeri Head of the Department of Mechanical Engineering Dean of the Gr'Iuate School T understand that

Product innovation for interdisciplinary design under changing requirements : mechanical design for the Bug ID project

Creator:: Peterson, Clint W.
Abstract:: It is crucial for the development of high quality products that design requirements are identified and clarified as early as possible in the design process. In many projects the design requirements and design specifications evolve during the project cycle. Shifting needs of the customer, advancing technology, market considerations and even...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Clint W. Peterson for the

The effect of operating variables on piston ring wear as determined by radioactive tracers

Creator:: Peterson, Reuben William
Resource Type:: Masters Thesis
Full Text:: determined by radioactive tracers AN ABSTRACT OF THE THESIS OF Reuben William Peterson for the MS In _Mo

Reduced order multi-legged mathematical model of cockroach locomotion on inclines

Creator:: Peterson, Delvin E.
Abstract:: While the locomotion performance of legged robots over flat terrain or known obstacles has improved over the past few decades, they have yet to equal the performance of their animal counterparts over variable terrain. This work analyzes a multi-legged reduced order model of cockroach locomotion on variable slopes which will...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Delvin E. Peterson for

Numerical simulation of micro/mini-channel based methane-steam reformer

Creator:: Peterson, Daniel Alan
Abstract:: Numerical modeling of methane-steam reforming is performed in a micro/mini-channel with heat input through catalytic channel walls. The low-Mach number, variable density Navier-Stokes equations together with multicomponent reactions are solved using a parallel numerical framework. Methane-steam reforming is modeled by three reduced-order reactions occurring on the reactor walls. The surface...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Daniel Alan Peterson for the degree of

Heat utilization in a sewage disposal plant

Creator:: Peterson, Roy Stanley
Resource Type:: Masters Thesis
Full Text:: UTILIZATION IN A SEAGE DISPOSAL PLANT ROY STANLEY PETERSON A THESIS submitted to OREGON STATE COLLEGE

The Evolution: Electric Vehicles and the End of Oil Addiction

Creator:: Donahue, Cory
Abstract:: The world is currently using an unsustainable system of meeting its transportation needs with oil. This system is taking a toll on the world environment and on global politics. The physical availability of oil is the system’s most immediate problem and will most likely bring about a transition away from...
Resource Type:: Honors College Thesis
Full Text:: Acknowledgements Thank you, Professor Eric Hill, for getting me started and for being concerned when you

Flow characteristics of co-flowing, laminar streams in a rectangular microchannel

Creator:: Oak, Jason
Abstract:: The effects of varying flow rate ratio and Reynolds number on the momentum diffusion and flow development of two co-flowing, laminar streams in a rectangular microchannel are presented. The microchannel has an aspect ratio of approximately 16 with a width of 1006 μm and a height of 63 μm. A...
Resource Type:: Masters Thesis
Full Text:: my thanks to the other members of my committee, Dr. Richard Peterson and Dr. Robert Leichti. I

Strength and corrosion resistance properties of a new aluminum solder

Creator:: Fauerso, Walter Eric
Resource Type:: Masters Thesis
Full Text:: aluminum solder STRENGTH .ND CORRO$ION RESISTANCE PROPJTIES OI A NE7I LUINU 2OLDF1 by VALT ERIC

Stability and Liftoff of Non-premixed Large Hydrocarbon Flames in MILD Conditions

Creator:: Walters, Eric M.
Abstract:: The Moderate or Intense Low-oxygen Dilution (MILD) combustion regime has received interest from the industrial furnace and gas turbine engine industries due to attractive properties of reduced NO[subscript x] emissions and high thermal efficiency. MILD combustion is characterized by low oxygen concentrations (i.e. 3%-9% by volume) and high reactant temperatures....
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Eric M. Walters for the

Radiation Emissions from Turbulent Diffusion Flames Burning Large Hydrocarbon Fuels

Creator:: Zeuthen, Eric D.
Abstract:: The purpose of this study is to measure and compare radiation emissions from flames burning large hydrocarbon fuels to assist in understanding how the molecular composition changes radiation emissions. Radiative heat transfer is significant because it is a primary mode of heat transfer for many combustion devices. This study also...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Eric D. Zeuthen for the

Development of a Framework for Analyzing the Effects of a Micro Pin Fin Array on the Catalytic Combustion of Hydrogen in Micro-channels

Creator:: Walters, Eric M.
Abstract:: An experimental framework for investigation of the effects of Micro Pin Fin Arrays (MPFA) on the fuel oxidation efficiency of catalytic combustion is presented in this thesis. Complete combustion of the fuel is essential for operation at maximum efficiency and high standards of environmental cleanliness desired in existing microscale combustion...
Resource Type:: Honors College Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Eric M

Development of a control system for a walking machine leg

Creator:: Thompson, Eric William
Abstract:: This thesis presents a control system for a walking machine leg. The leg is representative of one of the six legs required for a proposed walking machine based on the geometry of the darkling beetle. Each of the three joints is controlled by a DC servo motor mounted to the...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Eric William Thompson for the degree of Master of Science in

Cryogenic Single-Phase Heat Transfer in a Microscale Pin Fin Heat Sink

Creator:: Truong, Eric D.
Abstract:: A combined experimental and computational fluid dynamics (CFD) study of single-phase liquid nitrogen flow through a microscale pin-fin heat sink is presented. Such cryogenic heat sinks could find use in applications such as high performance computing, spacecraft thermal management, and hydrogen storage thermal management. A circular pin fin heat sink...
Resource Type:: Honors College Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Eric D. Truong for

Study of the Effects of Chain Whip Length and Bar Length on the Characteristics of Chain Shot

Creator:: Shannon, Eric R.
Abstract:: Timber harvesters are high powered industrial grade rigs used to fell, delimb, and cut to size large trees. Hydraulic motors power sprockets that drive chains around a guide bar that get extended through logs during cuts. As technological advances allow for higher speeds a phenomenon called “chain shot” has...
Resource Type:: Masters Thesis
Date Created:
Full Text:: MergedFile AN ABSTRACT OF THE THESIS OF Eric Shannon

Operation and maintenance procedures for improving compressed air system efficiency

Creator:: Bessey, Eric G.
Abstract:: Air compressors are a significant industrial energy user and therefore a prime target for industrial energy audits. The project goals were to develop a software tool, AIRMaster, develop a methodology for performing compressed air system audits, and conduct field audits to refine the methodology and assess savings potential from six...
Resource Type:: Masters Thesis
Full Text:: air system efficiency AN ABSTRACT OF THE THESIS OF Eric G. Bessey for the degree of Master of

Analysis and simulation of dual-source heat pumps with three-fluid evaporators

Creator:: Lee, Jai-hyo
Abstract:: When the ambient temperature drops, air-source heat pumps deliver less heating per unit of power input and usually cannot provide for the heating load. Therefore, dual-source heat pumps can offer an attractive alternative. In the context of this work, a dual-source heat pump operates as an air-source unit under normal...
Resource Type:: Dissertation
Full Text:: discussions; and Drs. R.B. Peterson and Joel Davis for serving as my graduate committee members. I would

Analysis of ice formation with flow reversal for application to an ice-maker heat pump

Creator:: Aceves, Salvador M.
Abstract:: The problems of freezing and melting present special mathematical complexity and, except for the most elementary one-dimensional cases, require a numerical solution. However, these problems have a growing importance in engineering problems because of their application to metallurgical operations, food preservation, heating and air conditioning, etc. In the present work,...
Resource Type:: Masters Thesis
Full Text:: Davis and Dr. John Peterson. I also want to thank Dr. James Welty and Dr. Arturo Lara, to whom I owe

The application of a band variable-inertia flywheel to an urban transit bus

Creator:: Moosavi-Rad, Hamid
Abstract:: This dissertation investigates by means of computer simulation the potential of a Band Variable-Inertia Flywheel (BVIF) to store energy for an urban transit bus. Replacing both a fixed-inertia flywheel (FIF) and a continuously variable transmission (CVT), the Band Variable-Inertia Flywheel is capable of accelerating a vehicle from rest to a...
Resource Type:: Dissertation
Full Text:: . Kennedy, Christopher Bell, and John Peterson for serving on my committee. Warm thanks go to my best

Evaluation of the predictive capability of two-phase flow maps for microchannel condensation of R-134a at low mass flux conditions

Creator:: VanderPutten, Michael A.
Abstract:: Predicting condensation flow regimes and the associated heat transfer and pressure drop in microchannels is critical for designing terrestrial and space systems for heating, cooling, power generation, and advanced manufacturing. It is well established that in flows approaching the microscale (Dh < 1 mm) gravity-dominated flow regimes become less relevant,...
Resource Type:: Masters Thesis
Full Text:: a large temperature difference across the water-side (ΔT > 10°C). To mitigate maldistribution in

A theoretical and experimental study of self-propagating high-temperature synthesis of titanium carbide

Creator:: Huque, Ziaul
Abstract:: Self-propagating high-temperature synthesis (SHS) is a new method of producing advanced ceramic materials and offers an attractive alternative to conventional methods of materials processing. An experimental investigation was carried out to determine the SHS reaction wave propagation speed in a vertical cylindrical compact made from a mixture of titanium and...
Resource Type:: Dissertation
Full Text:: , Professor Lorin Davis, Professor Richard Peterson and Professor Jose Reyes, for their time and assistance

Laminar natural convection within long vertical uniformly heated parallel-plate channels and circular tubes

Creator:: Vorayos, Nat
Abstract:: The problem of simple mathematical models of laminar natural convective flow within a long vertical parallel-plate channels and circular tubes kept at uniformly heated walls is revisited to seek a clear physical understanding of heat transfer mechanisms. A series solution method to analyze the fully developed flow and an integral...
Resource Type:: Dissertation
Full Text:: Peterson, Dr. Jim Liburdy, and Dr. Jeffrey Woldstad for their guidance and time. My eternal appreciation

Laminar natural convection in vertical tubes with one end open to a large reservoir

Creator:: Wu, Yissu
Resource Type:: Dissertation
Full Text:: my graduate committee members, Dr. Lorin R. Davis, Dr. Blake Peterson, and Dr. R. E. Wilson

An experimental study of fluid flow and heat transfer in rectangular microchannels

Creator:: Popescu, Aristotel
Resource Type:: Dissertation
Full Text:: committee, John Lee, Richard Peterson, Deborah Pence and Erik Skyllingstad, who provided insightful

Mechanics of Nb-Ti superconducting composites

Creator:: Guo, Zhiqiang
Abstract:: Mechanical behavior of Nb-Ti superconducting composites with copper matrices have been studied experimentally and theoretically. Experimental work includes extensive measurements of Cu/Nb-Ti composite system. Techniques for fine fiber testing and composite wire measurement have been developed. Experimental parameters examined in this research include geometry, hardness, Young's modulus, Poisson's ratio, yield...
Resource Type:: Dissertation
Full Text:: Peterson, Timothy C. Kennedy, E. G. Wolff, and Dan Schafer for their kind advices and encouragements as

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