Index Catalog // ScholarsArchive@OSU

Pure torsion of a slotted channel member

Creator:: Benedetti, Gerald Andrew
Resource Type:: Masters Thesis
Full Text:: . Numerical results have been obtained in the past by applica tion of Prandtl1 s membrane analogy, thereby

Assessing cogeneration feasibility in institutional facilities

Creator:: Van Holde, David J.
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF David J. Van Ho lde for the degree

Rating of domestic sawdust burners

Creator:: Willey, Earl Clark, 1891-
Resource Type:: Masters Thesis
Full Text:: . Also, Investigations of burners In home installations 33 during the past five years disclosed the

Application of linear quadratic control in reduction of aerodynamic forces on aircraft

Creator:: Wei, Shou Yuan
Abstract:: A problem found in high speed transport aircraft is excessive tail loading when flying at cruise speeds through turbulence. Attempts to reduce these areodynamic forces on the tail may result in unstable aircraft motions. Using a linear quadratic regulator in conjunction with a Kalman filter, the feasibility of designing an...
Resource Type:: Dissertation
Full Text:: all environmental factors influencing the past, present, and future. 4. Determination of the optimal

The present status of the residential heat pump

Creator:: Saul, Adolf Theodore Regis
Resource Type:: Masters Thesis
Full Text:: The present status of the residential heat pump THE

Evaluation of thermal energy storage requirements for a geothermal based district heating system

Creator:: Lawrence, Thomas M.
Abstract:: The thermal energy storage requirements for a district heating system utilizing geothermal energy is evaluated with respect to the system design heating load and local climatic conditions. The local climate pattern is represented by a series of events which characterize the nature and sequence of the cold spells that can...
Resource Type:: Masters Thesis
Full Text:: . The local climate pattern is represented by a series of events which characterize the nature and

The zirconium-silver system

Creator:: Kemper, Robert Schooley
Resource Type:: Masters Thesis
Full Text:: of the requirements for the degree of MASTER OF SCIENCE June 1952 APPROV-Z;D: Redacted for

The effect of small amounts of magnesium on the superplastic behavior of an aluminum-zinc alloy

Creator:: Abbott, Vaughn William
Abstract:: The base Al-Zn superplastic alloy was investigated at 250°C to determine the effect of small amounts of magnesium on mechanical properties. Six alloys of nominal composition 0.00, 0.10, 0.25, 0.50, 0.75, and 1.00 weight percent magnesium, constant 78 weight percent zinc, and variable 21 to 22 weight percent aluminum were...
Resource Type:: Masters Thesis
Full Text:: examine the past and present research findings in the growing field of superplasticity and apply these

An investigation of the removal of ozone by activated charcoal

Creator:: Liffick, Glenn Lonngren
Abstract:: The removal of ozone from an air stream by activated-cocoanut charcoal was investigated from the literature and experimentally. The experimental investigation showed that activated-cocoanut charcoal can be used to remove concentrations of ozone less than 1.0 ppm with high efficiencies. The mechanism of the ozone removal appeared to be a...
Resource Type:: Masters Thesis
Full Text:: An investigation of the removal of ozone by activated

The determination of ignition temperatures of organic materials

Creator:: Adams, Edward Erick
Resource Type:: Masters Thesis
Full Text:: The determination of ignition temperatures of organic

The effects of stress and temperature on the creep of aluminum alloy conductor wire

Creator:: Riesland, Edward Ernest
Resource Type:: Masters Thesis
Full Text:: . The theory makes use of the con~ oept of "units of flow", structures in a body whose motion past

Effect of initial conditions on the convergence rate of the energy equation in Couette flow

Creator:: Seddigh, Foad
Abstract:: Computers are very efficient in handling the problems which deal with iteration. Numerical treatment of the unsteady energy equation is one sort of iteration. The convergence of the unsteady film coefficient, in two dimensional space, to its steady state value has been deduced by comparison of the results of the...
Resource Type:: Masters Thesis
Full Text:: Effect of initial conditions on the convergence rate of

The effect of vacuum annealing on the impact properties of structural steel plate

Creator:: Gwin, George Andrew
Resource Type:: Masters Thesis
Full Text:: BELiVIO1 OF LOV CARBON STEEL Tensile Tests In the past the engineer has taken a traction of the yield

The effect of alpha phase morphology on the impact energy of commercial purity titanium

Creator:: York, James Michael
Abstract:: Samples of commercial purity titanium were heat treated above the beta transformation temperature and within the two phase alpha-beta phase field, followed by cooling at varying rates. Testing of the samples in tension and by instrumented impact indicated that some strengthening could be imparted by these heat treatments, although at...
Resource Type:: Masters Thesis
Full Text:: The Effect of Alpha Phase Morphology on the Impact Energy

An analytical study of the effect of characteristic engine performance parameters on the payload capabilities of various high performance missiles

Creator:: Schmitz, Bruce Wayne
Resource Type:: Masters Thesis
Full Text:: CAPABILITIES OF VARIOUS HIGH PERFORMANCE MISSILES INTRODUCTION During the past few years the program of

Calculation of the pressure distribution on a pitching airfoil with application to the Darrieus Rotor

Creator:: Ghodoosian, Nader
Abstract:: An analytical model leading to the pressure distribution on the cross section of a Darrieus Rotor Blade (airfoil) was constructed. The model was based on the inviscid flow theory and the contribution of the nonsteady wake vortices was neglected. The analytical model was translated into a computer code in order...
Resource Type:: Masters Thesis
Full Text:: Calculation of the pressure distribution on a pitching

Design and optimization of a heating-only heat pump for Western Pacific Northwest applications

Creator:: Elger, Donald Francis
Abstract:: The use of the conventional air-source heat pump for residential space conditioning has increased dramatically over the past decade. Historically these units have been designed as air conditioners which could also be used to provide heating. However, for the climatic region of the Western Pacific Northwest (the geographic region west...
Resource Type:: Masters Thesis
Full Text:: objectives of optimizing the heating performance of the heat pump under typical U.S. Northern climate

An experimental study of the fluid mechanics of filling a small part of modular mold

Creator:: Miller, Mark Wade, 1967-
Abstract:: Investment casting has been an important form of metal casting for many years, but little is understood about the fluid flows that occur during mold filling. A key to quality castings is the understanding and control of the fluid flows that are present when the mold is filled with molten...
Resource Type:: Masters Thesis
Full Text:: equipment was readied, and the proper volume of solder (63% tin 37% lead) was superheated past its melting

Evaluation of the Boleyn solar home, Portland, Oregon

Creator:: Ehm, Hans
Abstract:: The Boleyn home located in Portland Oregon (latitude 45°) is evaluated based on monitoring data taken from 1977 to 1982. The Boleyn home is a two-story (plus basement) frame home. It takes benefit of passive solar gains and is equipped with an active solar system. The active solar system consists...
Resource Type:: Masters Thesis
Full Text:: Evaluation of the Boleyn solar home, Portland, Oregon

An empirical study on the process of mechanical design

Creator:: Stauffer, Larry A.
Abstract:: An information processing model of the problem-solving performance of mechanical designers is presented for four design tasks: conceptual assembly design, layout component design, detail component design, and catalog selection. These tasks are organized into six kinds of segments called episodes, which describe the goal structure of the designer while performing...
Resource Type:: Dissertation
Full Text:: . PAST EMPIRICAL RESEARCH IN MECHANICAL DESIGN While there is a significant body of research in the

The application of air entrainment to concrete in the Corvallis area

Creator:: Yavruyan, Masis
Resource Type:: Masters Thesis
Full Text:: past two decades is the application of air entrainment to the x for the improvement of durability

Testing and evaluating the combustion characteristics of waste fuels

Creator:: Canova, Joseph H.
Abstract:: Effective combustion of waste fuels requires an understanding of the fuels characteristics. Gaseous and particulate emissions, ash residues and combustion properties are of interest to many; those that produce and sell heating units, utilities interested in using the fuels for power generation, regulatory agencies, municipalities needing to solve a disposal...
Resource Type:: Masters Thesis
Full Text:: today's demands. Nuclear power has faced setbacks due to past mistakes and the lack of a means to reduce

The effect of detonation on piston ring wear

Creator:: Olson, Donel Rudolph
Resource Type:: Masters Thesis
Full Text:: oil and flow past a sensitive geiger tube thus enabling a determination of the amount of wear which

An aeroelastic analysis of the Darrieus wind turbine

Creator:: Meyer, Edward Earnest
Abstract:: The stability of small oscillations of the troposkeinshaped blade used on Darrieus wind turbines is investigated. The blade is assumed to be attached to a perfectly rigid rotor shaft and spinning in still air. Linear equations of motion are derived which include the effects of in-plane, out-of-plane, and torsional stiffness,...
Resource Type:: Dissertation
Full Text:: An Aeroelastic Analysis of the Darrieus Wind Turbine AN

Modeling of geothermal power plants using the binary fluid cycle

Creator:: Walter, Ronald A.
Abstract:: In light of the current world-wide energy situation, the utilization of the immense reserves of geothermal energy is being actively pursued. The thermal energy contained in a geothermal reservoir is mainly stored in rocks, but is also held in liquid water and/or steam. The generation of electrical power from these...
Resource Type:: Masters Thesis
Full Text:: , Italy. The majority of the world's generat- ing capacity has been installed in the past sixteen years

A study of pulping processes in the United States with possibilities of application to Indian woods

Creator:: Hazarika, Indra Nath
Resource Type:: Masters Thesis
Full Text:: A study of pulping processes in the United States with

Effects of selected atmospheric variables on the power output of a DOE Mod-2 wind turbine

Creator:: Germain, Alan Clifford.
Abstract:: The effects of selected atmospheric variables on the power output of a DOE Mod-2 horizontal-axis wind turbine are studied. Particular attention is focused on unsteady, nonuniform flow conditions within the rotor disc as represented by vertical profiles measured at adjacent meteorological towers. Primary variables are wind speed, wind direction and...
Resource Type:: Masters Thesis
Full Text:: mountain range, the climate of the area is a dry, continental type. Vegetation is sparse; mostly grasses

A simplified dynamic model of the hind leg of a beetle during step initiation

Creator:: Mallysetty, Venkata Ramana
Abstract:: This thesis investigates a simple dynamic model of the hind leg of a beetle during initiation of a step. The primary assumption was that the full load of the body was carried on the hind leg during this time. That is, the only forces on the body were that of...
Resource Type:: Masters Thesis
Full Text:: A simplified dynamic model of the hind leg of a beetle

Use of the exergy concept for design improvement of heat exchangers and heat exchanger networks

Creator:: Ranasinghe, Jatila
Abstract:: The second law of thermodynamics, through the exergy concept, allows us to quantify and rationally cost the consumption of exergy (irreversibility) used to drive the heat exchange process and the effluent losses of exergy in a heat exchanger For systems with a network of heat exchangers, the exergy concept recognizes...
Resource Type:: Dissertation
Full Text:: Use of the exergy concept for design improvement of heat

Evaluation of factors contributing to the failure of cast iron water mains

Creator:: Takahashi, Gilbert Tamaji
Abstract:: An evaluation was made of factors contributing to the service failure of a 12 inch diameter cast iron water pipe in Pendleton, Oregon. The quality of the pipe was found to be acceptable when compared to the acceptance limits established by the American National Standards Institute, Inc. However it exhibited...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF GILBERT TAMAJI TAKAHASHI for

An experimental study of the acoustical characteristics of dampers in air conditioning systems

Creator:: Yun, Kyung Woo
Abstract:: The noise problem in air conditioning systems is receiving ever increasing attention because of the importance of noise on a comfortable human environment. Some work has been done on the solutions to the noise problem by an investigation of a few system elements. The acourstical characteristics of dampers become more...
Resource Type:: Masters Thesis
Full Text:: An experimental study of the acoustical characteristics of

Effects of selected minor alloying additions on the structure deformation characteristics of beryllium

Creator:: Dooley, George Joseph, III
Abstract:: Solid solution alloying was employed in an attempt to produce some relatively ductile form of beryllium. If the c/a ratio could be significantly altered, it was felt new or different slip systems could be activated. The following elements were selected on the basis of atomic size, melting point, crystal structure...
Resource Type:: Dissertation
Full Text:: Effects of selected minor alloying additions on the

Influence of laser processing on the corrosion and microstructure of zirconium based material

Creator:: Reitz, W. (Wayne)
Resource Type:: Dissertation
Full Text:: Influence of laser processing on the corrosion and

An experimental and analytical study of the internal fluid dynamics of an ink-jet printhead

Creator:: Elger, D. F.
Resource Type:: Dissertation
Full Text:: An experimental and analytical study of the internal

An investigation of the effects of immersed heat exchanger tube spacing and arrangement on the quality of fluidization in a cold phase two-dimensional fluidized bed

Creator:: Lockwood, Dwight Norris
Abstract:: The feasibility of fluidized bed combustion of coal for commercial and industrial steam power generation has been established and reported in the literature. Satisfactory removal of sulfur oxides from the combustion product gases has also been reported. In this experiment various heat exchanger tube patterns, of commercial size tubes, were...
Resource Type:: Masters Thesis
Full Text:: An investigation of the effects of immersed heat exchanger

A numerical study of the thermal performance for surface mounted and through-hole mounted integrated circuits

Creator:: Wang, Jyi-Ren
Resource Type:: Masters Thesis
Full Text:: details of past studies related to the present investigation. Simons [8] pioneered the thermal

Critical current distributions and the V(1) transition in Nb-Ti superconducting composites

Creator:: Narang, Girish
Abstract:: It is well established that the extended range V(I) transition behavior in filamentary superconducting composites depends strongly on the processing conditions of the composite. Based on previous work, a model proposed by Warnes et al predicts that the second derivative of the V(I) transition is related to a more fundamental...
Resource Type:: Masters Thesis
Full Text:: -Ti superconducting composites AN ABSTRACT OF THE THESIS OF GIRISH NARANG for the degree of MASTER

An examination of point defects and atomic diffusion in silicon

Creator:: Monson, Tyrus K.
Abstract:: The self-interstitial defect is commonly regarded as important in regulating diffusion in silicon. A review of the literature reveals that the scientific bases for invoking the self-interstitial defect are weak, while an alternate defect, the vacancy cluster, has been largely ignored. One argument which has been used to establish dominance...
Resource Type:: Dissertation
Full Text:: silicon AN ABSTRACT OF THE DISSERTATION OF Tyrus K. Monson for the degree of Doctor of Philosophy in

A comparison of experimental mode I analysis methods for the interlaminar fracture toughness characterization of graphite/epoxy composite materials

Creator:: Keary, Paul Edward
Abstract:: Three approaches for evaluating mode I interlaminar strain energy release rates in graphite/epoxy composites were compared using experimental data from double cantilever beam specimens. Expressions for evaluating strain energy release rates were arrived at based on assumptions regarding specimen geometry and material behavior. The calculations included the direct method of...
Resource Type:: Masters Thesis
Full Text:: the interlaminar fracture toughness characterization of graphite/epoxy composite materials AN

A determination of an exhaust hydrocarbon reactivity index for a vehicle powered by gasoline and liquefied natural gas

Creator:: Rossman, David Robert
Abstract:: Past research has shown that automobile exhaust is composed of a mixture of many different hydrocarbons and that some of these hydrocarbons contribute more to the smog problem than others. Natural gas has been proposed as an alternative to gasoline as a motor fuel, and it was desired to confirm...
Resource Type:: Masters Thesis
Full Text:: warm-up residues or residues of past fuels. Although the equipment necessary was not available at

A comparative study of the performance of pin finned heat sinks for cooling electronic components by natural convection

Creator:: Manolescu, Mircea Ion
Abstract:: A study was conducted to determine the heat transfer characteristics of pin finned heat sinks in natural convection. Three pin diameters were studied: 0.238 cm, 0.318 cm and 0.396 cm. The pins were attached to the base in two arrangements, triangular and rectangular, forming a horizontal array. Pin spacing was...
Resource Type:: Masters Thesis
Full Text:: increasing the velocity of the fluid 3 flowing past the system (forced convection). That would be done at

Modeling the thermal effects of fabricated fuel-to-cladding gap in fast reactor fuel

Creator:: Baker, Ronald Blair
Abstract:: This report presents a refined method for the calculation of fuel centerline temperatures and the linear-heat-rating-to-incipient melting, ' Q'[subscript m], of mixed-oxide fuel typical of that to be used in the Fast Flux Test Facility and in Liquid Metal Fast Breeder Reactors. Of primary concern are the effects of the...
Resource Type:: Masters Thesis
Full Text:: path was made. The SIEX(5) thermal performance code was the starting point because of the past ability

The conversion of solar radiation to heat energy using a trough-type parabolic mirror

Creator:: Mackie, Keith Leroy
Resource Type:: Masters Thesis
Full Text:: The conversion of solar radiation to heat energy using a

The electrolytic polishing of metals and its applications to metallographic specimens

Creator:: Parker, Howard Wesley
Resource Type:: Masters Thesis
Full Text:: polishing must be of a hi order to make possible ei'fioient e.xanination, in the past few years, however

Implementation and evaluation of a participating media radiation model in the TEMPEST thermal-hydraulic computer code

Creator:: Rector, David R.
Abstract:: In this work, a method for solving the differential form of the radiative transfer equation was implemented into an existing three-dimensional thermal-hydraulic computer program known as TEMPEST. The method used was the P-l approximation, where the angular distribution of the radiation intensity is represented by a truncated series of spherical...
Resource Type:: Masters Thesis
Full Text:: radiation model in the TEMPEST thermal-hydraulic computer code AN ABSTRACT OF THE THESIS OF David R

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:: AN ABSTRACT OF THE THESIS OF Scott W. Indermuehle for the degree of Master of Science in

The use of a Stirling hot-air engine in converting solar energy to mechanical power

Creator:: Boehme, Martin Leon
Resource Type:: Masters Thesis
Full Text:: pertormed with the end of the cylinder submerged approximately 1/2, 1, and l-1/2 in. past the mirror's

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:: The application of a band variable-inertia flywheel to

A direct-reading instrument for the measurement of gasoline flow in engine fuel systems

Creator:: Lee, Fred Cheong
Resource Type:: Masters Thesis
Full Text:: . INTRODUCTION During the past decade the utilization of liquid petroleum fuels i_n internal-combusUon

The distribution of moisture condensed from saturated air flowing through cooled porous media

Creator:: Shen, Chung-Yi
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Chung-Yi Shen for the M.S. in

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