Index Catalog // ScholarsArchive@OSU

Metallographic and physical properties of some cold drawn wires

Creator:: Wheelock, Clifford Warren
Resource Type:: Masters Thesis
Full Text:: auora I a1igvj 48 TABLE II SPECIMEN NO, 2, C-1019 STEEL ?- 4.) e-I Q q- r4 q r-4

An experimental investigation of heat transfer in the transition and turbulent regimes for natural convection in mercury in a uniformly heated vertical channel

Creator:: Humphreys, William Warren
Resource Type:: Masters Thesis
Full Text:: is presented 5 June 1974 Typed by Cheryl E, Curb for William Warren Humphreys ACKNOWLEDGEMENTS I

Structural factors affecting wear of cobalt base hard facing alloys

Creator:: Gifford, Raymond Warren
Abstract:: This paper is a metallurgical study of the microstructure of a cobalt base hard facing alloy to determine the cause for inconsistant wear properties. Wear tests on a Stellite 6 alloy, deposited using oxyacetylene welding techniques, resulted in a wide range of weight losses. Microscopic examination has revealed the probable...
Resource Type:: Masters Thesis
Full Text:: nc e Pr op er tie s Se ns iti ve t o C ar bo n C on te nt a nd S tr uc tu re

Design, analysis, and validation of composite c-channel beams

Creator:: Koski, William C.
Abstract:: A lightweight carbon fiber reinforced polymer (CFRP) c-channel beam was previously designed using analytical theory and finite element analysis and subsequently manufactured through a pultrusion process. Physical testing revealed the prototype did not meet the bending and torsional stiffness of the beam model. An investigation revealed that the manufactured prototype...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF William C

Design and analysis of a high speed dynamic tow carriage

Creator:: Lovejoy, Steven C.
Abstract:: A need exists to develop a high speed dynamic tow carriage used to motivate hydrodynamic specimens through a fluid environment. It is desired to simulate high Reynolds number unsteady flow about the specimen by towing the specimen through the fluid. The fluid environment is to be provided by the existing...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Steven C. Lovejoy for the degree of Master of Science in Mechanical

Modes of vibration of inextensible cables suspended from two points

Creator:: Thompson, Roger S.
Abstract:: The equations of motion of a suspended, inextensible cable in the absence of damping are studied. A method is developed and illustrated for determining the frequencies and mode shapes for small oscillations about the equilibrium configuration. With the introduction of a new variable, the fourth order equation governing tangential displacement...
Resource Type:: Masters Thesis
Full Text:: OF INEXTENSIBTF CABLES SUSPENDED FROM TWO POINTS Redacted for privacyAbstract approved: C. E. Smith

Development and validation of acoustic measurement techniques for void fraction in concentric annular geometries

Creator:: Tost, Brian C.
Abstract:: This work investigates the acoustic velocity of gas-liquid mixtures in vertical, co-current flow in a concentric annulus. Acoustic velocity shows promise as a detection parameter for the presence and amount of gas in a liquid flow because of its high sensitivity to gas void fraction in a gas-liquid mixture. However,...
Resource Type:: Dissertation

Micromechanics of heterogeneous materials under compressive loading

Creator:: Laird, George
Abstract:: In mining and mineral processing, compressive loading is often encountered during the comminution of ore bearing minerals and in the wear resistant materials used in the comminution circuit. A common thread joining many of the materials that are primarily used under compressive loading is the presence of a high modulus...
Resource Type:: Dissertation
Full Text:: would also like to thank Drs. Charles E. Smith, Michael E. Kassner, James C. Rawers, and William C

Ductile facture of metals under high triaxial stress states

Creator:: Tolle, Michael C.
Resource Type:: Dissertation
Full Text:: torque (sz / 43 tez = 4), (c) sz = 43 tez, (d) sz / 13 tez = 1/4, (e) pure shear. The voids in the

Energy resource conservation in new large power plants

Creator:: King, David C.
Abstract:: This thesis evaluates new, large power generating plants of the various types expected to be practicable in the time span of the next 50 years. By using thermodynamic principles, the plants are evaluated on the basis of conservation of energy; the basic assumption is that the best policy is the...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF David C King for the degree of Master of Science in Mechanical

Development of acoustic emissions testing procedures applicable to conventionally reinforced concrete deck girder bridges subjected to diagonal tension cracking

Creator:: Lovejoy, Steven C.
Abstract:: A need exists to develop a non-destructive testing technique that can identify the formation and propagation of diagonal tension cracks in conventionally steel reinforced concrete deck girder (RCDG) highway bridges in the State of Oregon. Such a technique could be included into a structural health monitoring (SHM) system installed on...
Resource Type:: Dissertation
Full Text:: Steven C. Lovejoy for the degree of Doctor of Philosophy in Mechanical Engineering presented on May 30

Dynamic finite element analysis of micropolar elastic materials

Creator:: Kim, Jong-bum, 1960-
Abstract:: In granular or fibrous materials, in which the dimensions of the internal structure can be of the same order of magnitude as major flaws or holes, classical elasticity theory does not consistently provide accurate models of the large stress gradients that may develop. With the incorporation of additional rotational degrees...
Resource Type:: Dissertation

Response of guyed offshore towers to stochastic loads in the presence of steady current

Creator:: Brynjolfsson, Sigurdur
Abstract:: The validity of the widely used stochastic linearization method for analysing the response of guyed towers to stochastic loads is investigated. The governing equations of a guyed tower have two main sources of nonlinearities, fluid-structure interaction and the restoring force of the cables. In this study, two models are considered....
Resource Type:: Dissertation
Full Text:: : Itwr e + Ctwr 9 + Ktwr 8 = - Ig Xg + Mnl + MD + MI (1) where I t = Mp L 2 +Mc z C 2 A. Ca +mL3/3

Thermal and seismic analysis of piping systems using classical methods

Creator:: Nisargand, Arun L.
Abstract:: "Piping Design and Engineering" first published in 1963 by Grinnell, Co. is widely used by engineers to perform approximate thermal stress analysis of high-temperature piping systems. The text consists of numerical constants to calculate end reactions and maximum bending stresses in a variety of piping configurations from known properties of...
Resource Type:: Masters Thesis
Full Text:: AE AB 2A 2 E and for Section BC P2 2 xcxl. 1 P2) P2 "2 UBC =((2 2(:A (AE) C 2A 2 E Hence, the

Evaluation of copper to superconductor area ratio measurement techniques for niobium-titanium composite superconducting wire

Creator:: Pyon, Taeyoung
Abstract:: Measurement of the copper to superconductor ratio (Cu/SC) in composite superconducting wires is necessary for process control, quality assurance, and characterization of the final wire properties. A comparison has been made of three techniques for measuring the Cu/SC ratio on a set of commercial wires produced for the Superconducting SuperCollider...
Resource Type:: Masters Thesis
Full Text:: . E. G. Wolff, and Dr. A. C. Weideman for their advice and assistance. The financial support and

Three-dimensional, nonlinear viscoelastic analysis of laminated composites : a finite element approach

Creator:: Wang, Min
Abstract:: Polymeric composites exhibit time-dependent behavior, which raises a concern about their long term durability and leads to a viscoelastic study of these materials. Linear viscoelastic analysis has been found to be inadequate because many polymers exhibit nonlinear viscoelastic behavior. Classical laminate theory is commonly used in the study of laminated...
Resource Type:: Dissertation
Full Text:: , c. Stress relaxation under constant strain, d. Instantaneous recovery, e. Delayed recovery, f

Combustion mechanisms in wood fired boilers

Creator:: Tuttle, Kenneth Lewis
Abstract:: A program of research has been established at Oregon State University to study wood residue combustion using an experimental spreader-stoker combustor. This research was conducted to increase the understanding of combustion occurring in wood fired boilers. Using Douglas Fir screened to 3/8-3/4 inches, two 4x4 factorial experiments were conducted varying...
Resource Type:: Dissertation
Full Text:: . 27 4,000 3,500 3,000 2,500 2,000 1,500 1,000 500 0 E I C I C C C 0 0 Gas temperature

Wind turbulence input model for horizontal axis wind turbines

Creator:: Lin, Shuh-ren
Abstract:: In order to estimate wind turbine residL2;characteristics in the presence of atmospheric turbulence, the important atmospheric sources for the force excitations felt by the wind turbine system must be identified and characterized. The goal of this research is to develop the wind turbulence input model for horizontal axis wind turbines....
Resource Type:: Dissertation
Full Text:: at stage k c(1)(k) Scalar, see Eq. (4.54) d(k) Y(k)i(k) e n The approximation error including

Large-strain softening of aluminum in shear at elevated temperature

Creator:: Alhajeri, Saleh N.
Abstract:: Pure aluminum deformed in torsion (shear) at elevated temperatures reaches a broad "peak" stress and then undergoes about a 17% decrease in flow stress with deformation to roughly 1-2 equivalent uniaxial strain. Beyond this strain the flow stress is approximately constant. The sources for this softening are unclear. The suggested...
Resource Type:: Masters Thesis
Full Text:: Softening of Aluminum in Shear at Elevated Temperature. Abstract approved: Michael E. Kassner Pure

Computational Study of Smoldering Combustion in Cellulose and Hemicellulose Mixtures

Creator:: Mulky, Tejas Chandrashekhar
Abstract:: Due to global warming wildland fires are increasing in frequency and severity. In the case of wildland fires, the major modes of combustion occur include smoldering combustion and flaming combustion. Smoldering combustion occurs most commonly in porous fuels like peat, forest duff, and woody fuels, which are available in abundance...
Resource Type:: Masters Thesis
Full Text:: /m 3 ) 450 500 550 600 650 700 750 T e m p e ra tu re ( °C ) 100% cellulose 75

A relationship between wave dispersion and fracture strength for a composite material

Creator:: Ilcewicz, Larry Bert
Abstract:: Wave dispersion and fracture are phenomena that involve. mechanisms triggered at the scale of a material's internal structure. Experiments were performed with a candidate material to judge the hypothesis that wave dispersion measurements can be used to nondestructively predict fracture strength. Wood-based particleboard was chosen as the candidate material because...
Resource Type:: Dissertation
Full Text:: Strain Energy Release Rate JI E Mode I J G E Mode I G C E Linear Elastic Compliance (UP) b E Fracture

Elastodynamic analysis of a propagating finite crack in a micropolar elastic solid

Creator:: Han, Seog-young
Abstract:: A dynamic propagation of a finite crack of opening mode in a micropolar elastic solid was investigated. By using an integral transform method, a pair of twodimensional singular integral equations governing stress and couple stress was formulated in terms of the displacement transverse to the crack, macro- and microrotations, and...
Resource Type:: Dissertation
Full Text:: = , E = 7 , C 42 1 02 C22 = c2 CM C +C= = . 2 s M = 22 . (3.2.6)"17,7 CD 2 +C32 Boundary condition

An investigation of the effects of radial acceleration on a fluidized bed used for filtration of air-borne particulate of submicron size

Creator:: Junge, David C.
Resource Type:: Dissertation
Full Text:: : -0. 90 -O. 1588 H -1. 8531 VEff. = 1. 25(V) 903(G- level) -0' () ()E -O. 903 Where: V = Gas velocity

Derivation and automatic generation of Kane's dynamical equations for mechanical manipulators

Creator:: Nie, Tinglin
Abstract:: To design and precisely control a manipulator requires developing an efficient dynamic model of the system. The present work demonstrates how this can be accomplished by employing Kane's dynamical equations. First, a detailed manual derivation of the equations of motion for a particular robot is presented in such way that...
Resource Type:: Dissertation
Full Text:: . Appreciation is also extended to the members of my Ph.D committee, Dr. Robert E. Wilson, Dr. Timothy C

Further Development of MPM and its Applications in Modeling Wood-Adhesive Bonds

Creator:: Hammerquist, Chad C.
Abstract:: This work is a culmination of a series of published works related to the use of the Material Point Method (MPM) in modeling wood adhesive bonds. The use of wood as construction material has the potential to play a small role in the solution to the current CO2 and climate...
Resource Type:: Dissertation
Full Text:: bonding procedures. c©Copyright by Chad Hammerquist September 22, 2017 All Rights Reserved Further

Biaxial fatigue behavior of commercially pure titanium Ti-50A (Grade 2) and low-alloy titanium Ti-Code 12 (Grade 12) heat exchanger materials

Creator:: Tobias, Benjamin C.
Abstract:: Material failures in heat exchangers are often closely tied to events associated with the conditions of service and operating parameters. These events can generally be attributed to adverse load application and higher than optimum operating temperatures that could lead to changes in the microstructure of the materials and fatigue failure...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Benjamin C. Tobias for the degree

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

Robustness of uncertain systems : globally optimal Lyapunov function

Creator:: Ahmadkhanlou, Fariborz
Abstract:: The Lyapunov direct method is utilized to determine the robustness bounds for nonlinear, time-variant uncertainies p[subscript i]. Determination of the robustness bounds consists of two principal steps: (i) generation of a Lyapunov function and (ii) determination of the bounds based on the generated Lyapunov function. Presently in robustness investigations, a...
Resource Type:: Dissertation
Full Text:: would also like to thank the members of my graduate committee, including Drs. R. R. Mohler, C. E

Reduced order modeling of legged locomotion in the horizontal plane

Creator:: Wickramasuriya, Gamika Arun
Abstract:: Sprawled-posture insects exhibit a remarkable ability to rapidly run in a stable manner over complex terrain, a feat that has yet to be equaled by man-made legged robots. Recent experimental results suggest that these insects may employ a hierarchical control structure, in which locomotion performance emerges from a combination of...
Resource Type:: Dissertation
Full Text:: = 0 (top row) and d = 0.002 (bottom row) with (a,d) β̇des = −2.5 rad/sec (b,e) β̇des = 0 rad/sec (c

Mechanical characterization of a simple gel in a prototype device that models a degenerative intervertebral disc

Creator:: Cenar, Yannick
Abstract:: A large part of low-back pain occurrences are due to disc herniation or prolapse of the nucleus pulposus. An alternative technique to existing treatments of low back pain includes nucleus pulposus replacement by an artificial material to relieve pain and restore normal function. To date, there has been a deficiency...
Resource Type:: Masters Thesis

Design of advanced aluminum silicon alloy compositions and processing

Creator:: Li, Xiao, 1963-
Abstract:: Part I discusses the development of an aluminum-magnesium-silicon alloy that may combine strength, extrudability, favorable corrosion resistance with low cost and scrap compatibility. The first part of the study determined the effects of small composition, heat treatment and mechanical processing changes on the ambient temperature tensile properties of the alloy....
Resource Type:: Dissertation
Full Text:: 40 0 E 0 E cn 0 c 20c n0 CVc 0 0.1 6061 RT F 0 °F RT F f0 °F 0 °F, 32 F R T

The design and construction of a small intermittent supersonic wind tunnel

Creator:: Bithell, Robin Allan
Resource Type:: Masters Thesis
Full Text:: . . . . . I S . . . s e 17 '3ett11n Chamber . . . . . . . . . . . . 17 Nozzle . . e s S S S C C C C e e 13

A study of cavitation instabilities in solids

Creator:: Puttapitukporn, Tumrong
Abstract:: Cavitation instabilities in elastic-plastic solids under spherically-symmetric and axisymmetric loadings were investigated using the finite element method. Both quasi-static and dynamic analyses were used to solve these problems. In the quasi-static analyses, we investigated a cavitation instability in elastic/perfectly-plastic, linear hardening elastic-plastic, power hardening elasticplastic, and constrained silver materials. Here,...
Resource Type:: Dissertation
Full Text:: power strain-rate hardening effects: E = 10 Mpsi, = 0.004, p= 0.000259 lb-sec2/in4, C= 0.1 sec and n

Properties of veneer sliced from serpentine-end-matched flitches

Creator:: Liu, Yuqing
Abstract:: Eighteen Ponderosa Pine (Pinus ponderosa Dougl.ex.laws) veneer flitches were randomly selected and crosscut into paired flitches. Serpentine-end-matched (SEM) joints were machined in the flitches, joint amplitude equal to the width in one half of the paired flitch and joint amplitude equal to 2/3 width in the other half of the...
Resource Type:: Masters Thesis

Integrated Evaluation of Drinking Water Purification: A Mixed-Method Laboratory and Field Assessment of a Biomass-Powered Water Treatment Technology

Creator:: Burleson, Grace Ellen
Abstract:: The global water crisis is defined as one of the major threats facing humankind over the next decade with over 1 in 10 people lacking access to clean drinking water worldwide. An estimated 1.2 million people pasteurize their drinking water by using boiling as an indicator. Pasteurization is the process...
Resource Type:: Masters Thesis
Full Text:: ) counter flow heat exchanger, (C) heat-up coil, (D) thermostatic valve, (E) kill chamber, and (F) water

Load-distributing properties of open-grid steel flooring

Creator:: Bone, Harold Kenneth
Resource Type:: Masters Thesis
Full Text:: ::::z:: r c:-. :..: r j:i: F ::m!:::::# ..:w .:th :::: u:r ::::: ;;::;:: ;::: &j !: -:: L .. !! : E

Factors affecting the properties of pumice concrete masonry units

Creator:: Horton, Raynor Eugene
Resource Type:: Masters Thesis
Full Text:: ""e'rio'/ 8/ocA J&,-,S 8 ,4ir c&'. ci 7' 76/ 41O 60 Z PN ¼5ht-'/?47ge 'n?af&7-d o /6 w'cA /e.'y/4 Eac

A nonlocal damage theory for laminated plate with application to aircraft damage tolerance

Creator:: Nahan, Matthew F.
Abstract:: Design of commercial aircraft structure, composed of composite material, requires the prediction of failure loads given large scale damage. In particular, a fuselage of graphite/epoxy lamination was analyzed for damage tolerance given a standard large crack that severed both skin and internal structure. Upon loading, a zone of damage is...
Resource Type:: Dissertation
Full Text:: complementary to the effective stress. al (1 D)c (1-D) = (2-14)E E Physically, the damage effective strain

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:: a--- C r - - C) Edge Delamination Specimen D) Lap Shear Specimen a E) Double Cantilever Beam

The application of air entrainment to concrete in the Corvallis area

Creator:: Yavruyan, Masis
Resource Type:: Masters Thesis
Full Text:: - panslon resulting from alkali aregate reaction. C. E. uerpo1, Chief or Concrete Research Division of

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:: Mechanical Engineering presented on 4,/e /f74" Title: AN INVESTIGATION OF THE EFFECTS OF IMMERSED HEAT

A study of laser processed intermetallics

Creator:: Roub, Evangeline R.
Abstract:: The effects of laser processing of Ni₃Al, TiAl, Fe₃Al, and Ni₃Si on microstructure and phase composition were characterized using optical and scanning electron microscopy and X-ray diffraction analysis. It was found that laser processing resulted in melt zones of ordered phases with fine grains and microstructures. The effects of heat...
Resource Type:: Masters Thesis
Full Text:: Micrograph of Ni3A1 laser pass, 0 Hr HT, X50 a) substrate, b) Melt flow bottom, c) melt flow, d) melt zone, e

Microwave sintering of alumina-titanium cermets

Creator:: Wrzesinski, Wendell R.
Abstract:: The influence of microwave radiation on the fabrication of cermet materials has been investigated for alumina-titanium cermets with compositions ranging from 20 to 80 wt. % titanium. An industrial microwave oven was characterized and adapted to process cermet materials. Physical and mechanical property determinations were made as a function of...
Resource Type:: Masters Thesis
Full Text:: . Properties of alumina and titanium. Average Coefficient Density,g/cc Linear Expansion,l/K Melting Point,C

A study of forces on simulated heat exchange tubes immersed in a cold fluidized bed

Creator:: Donovan, Jerry Eugene
Abstract:: The object of this research, project was to study how different parameters effect the magnitude and frequency composition of forces exerted on simulated heat exchange tubes immersed in a cold fluidized bed. Two arrays of tubes were assembled with the tubes mounted in an equilateral triangular pitch pattern. The center...
Resource Type:: Masters Thesis
Full Text:: C. Kennedy) The object of this research, project was to study how different parameters effect the

Failure analysis of pre-notched composite laminated plates under four-point bending conditions

Creator:: Arias Gonzales, Sergio
Abstract:: Ever since composite laminate technology was introduced into the aerospace and automotive industry, there has been a need to fully understand the damage progression experienced by composite laminated plates in the presence of a notch. While numerous research studies have been conducted on this matter when subjected to in-plane loads,...
Resource Type:: Dissertation
Full Text:: Bending Conditions Abstract approved: __________________________________________ Timothy C

A study of laser generated Rayleigh and Lamb waves in graphite/epoxy composites

Creator:: Park, Heeyong
Abstract:: The application of laser generated ultrasonics was first demonstrated in the mid-seventies and has shown good potential when applied to isotropic materials. However, its use with composite materials is still in the early stages of development. This study explores the potential for application of laser generated Rayleigh and Lamb waves...
Resource Type:: Dissertation
Full Text:: committee members, T. C. Kennedy, M. N. L. Narasimhan, E. Wolff, and Graduate Committe Representative, R. H

Robust controller design for robotic manipulators with saturation

Creator:: Liang, Zuyang
Abstract:: The development of modern industries calls for the robotic manipulators with high speed and accurate tracking performance. Many authors have paid attention to robust control of robotic manipulators; however, only few authors have also considered the control problem of manipulators with power limitation. In this dissertation, the robotic manipulator is...
Resource Type:: Dissertation
Full Text:: . Charles E. Smith, Prof. Timothy C. Kennedy, Prof. Alan H. Robinson and Prof. David G. Ullman for their

A numerical study of solid fuel combustion in a moving bed

Creator:: Ko, Daekwun
Abstract:: Coal continues to be burned by direct combustion in packed or moving bed in small size domestic furnaces, medium size industrial furnaces, as well as small power stations. Recent stringent restrictions on exhaust emissions call for a better understanding of the process of combustion of coal in beds. The present...
Resource Type:: Dissertation
Full Text:: fascinating "world of combustion." I wish to thank to Professor Lorin R. Davis, Professor William C. Denison

Nonlinear adaptive control of highly maneuverable high performance aircraft

Creator:: Cho, Sul
Abstract:: This thesis presents an effective control design methodology using a one-step-ahead prediction adaptive control law and an adaptive control law based on a Lyapunov function. These control law were applied to a highly maneuverable high performance aircraft, in particular, a modified F/A-18. An adaptive controller is developed to maneuver an...
Resource Type:: Dissertation
Full Text:: my committee members, Dr. W. Kolodziej, Dr. Timothy C. Kennedy, Dr. Robert E. Wilson, and Dr

Numerical study of natural convection in square partitioned and non-partitioned enclosures

Creator:: Sukkaset, Prasart
Abstract:: Heat transfer characteristics and associated temperature and flow fields for natural convection in two-dimensional, square, partitioned and non-partitioned enclosures have been determined for Grashof numbers ranging from 10³ to 10⁶. The vertical side walls of the enclosure are isothermal with all other surfaces assumed to be adiabatic. An adiabatic partition...
Resource Type:: Dissertation
Full Text:: , Professor Charles E. Smith, Professor Timothy C. Kennedy and Professor Harold I. Laursen, for their time

Drilling process evaluation by predicting drilled hole quality and drill bit wear with on-line acoustic emission signals

Creator:: Wang, Kuang-Jen, 1962-
Abstract:: Improvement of manufacturing productivity is dependent on the successful automation of manufacturing processes, the success of which is based in turn upon the availability of information which describes the state of manufacturing operations. Acoustic Emission (AE) signals related to the cutting process and tool wear have been recently applied to...
Resource Type:: Dissertation
Full Text:: : (a) Band 1 to 2, (b) Band 1 to 3, (c) Band 1 to 4, (d) Band 2 to 3, (e) Bank 2 to 4, and (f) Band 3

Dynamic measurement of Timoshenko beam shear coefficient

Creator:: Nelson, Daniel Loren
Abstract:: The Timoshenko beam theory, as an engineering alternative to the elementary and exact theories, introduces a factor, k', called the shear coefficient which has been given various interpretations and values. It is the objective of this study to experimentally evaluate k' for a brass bar of rectangular cross-section. Analytical results...
Resource Type:: Masters Thesis
Full Text:: amplitude ratio, (Y 0 /B), can be written as a function of wavelength, Yo 2TrI 2 B k'AG[ E- p C 2.7

Microstructural banding in thermally and mechanically processed titanium 6242

Creator:: Kansal, Utkarsh
Abstract:: Ti-6Al-2Sn-4Zr-2Mo-0.1Si specimens were shaped by repeated cycles of heating (to 954 °C) and hammer or press forging followed by a solution anneal that varied from 968 to 998 °C. The coupons were originally extracted from billets forged below the beta trans us ( 1009 °C) and slow cooled to ambient...
Resource Type:: Masters Thesis
Full Text:: Time: 10 SC0.411 ... (2) Solution Trat...es Teenporetere .-e : isso F (699C1 C. 0: um, (954C) (3

Evaluating the effectiveness of interaction strategies between product developer and supply chain using activity based modeling in environmental benign product design

Creator:: Wang, Bo
Abstract:: With growing concerns on environment impact of industrial product development, the product developers are seeking better solutions to achieve desired environmental benign requirements by the regulators and customers besides economic growth. During the last decade, some of the most successful product development companies (such as HP) have established their own...
Resource Type:: Masters Thesis
Full Text:: measure its impact on Environmental Impact (E), Quality (Q), and Cost (C), of developing a product. In

Transient nonlinear deformations of viscoelastic membranes

Creator:: Jenkins, Christopher H. M.
Resource Type:: Dissertation
Full Text:: possible. Thanks are also due to other members of my committee: Dr. Clarence A. Calder, Dr. Timothy C

Evaluation of Materials for Use in Open-Cycle Magnetohydrodynamic Power Generation

Creator:: Bowen, Michael S.
Abstract:: Recent interest in oxy-fuel combustion for carbon capture, as well as advancements in technologies such as magnetics, materials, and computational modeling has sparked renewed interest in magnetohydrodynamic (MHD) power generation. The increased temperatures of oxy-fuel combustion versus air-fuel combustion poses a challenge in the selection of materials for plasma exposed...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________________________________ David P. Cann C. Rigel Woodside Abstract: Recent interest in oxy-fuel combustion for carbon

Development of a laser interferometric dilatometer

Creator:: Johnson, Phillip Merle
Abstract:: Thermal expansion is one of the most frequently measured physical properties of materials. One of the important methods of detecting and measuring these changes is dilatometry, which is measuring the thermal expansion of the specimen and relating the specimen's expansion to its temperature. Four major types of dilatometers are commonly...
Resource Type:: Masters Thesis
Full Text:: ongulority Q-tt-t\ - I r e R2 _ 12+ d2 ooaR'=r'+2r€*€' r2'rd2=12+Zre+e2 .oossuming uc xQ*,,c-u 2r

Experimental Study of the Impact of Physical and Chemical Properties on Smoldering Combustion in Natural Fuels

Creator:: Smucker, Benjamin
Abstract:: Smoldering combustion in wildland fires is difficult to extinguish, can transition to flaming combustion, and produces a significant amount of pollutants. It is necessary to understand parameters controlling smoldering in order to help predict the smoldering behavior and potentially mitigate these hazards. The wide variety of natural fuels that occur...
Resource Type:: Dissertation
Full Text:: (SERDP) under contract number W912HQ-16-C-0045. TABLE OF CONTENTS Page 1 Introduction 1 2 Background

Predicting Properties of Bio-jet Fuels using Machine Learning and ATR-FTIR Spectroscopy

Creator:: Mayer, Morgan A.
Abstract:: High-potential molecules derived from biomass sources may suitably replace or supplement traditional nonrenewable hydrocarbon fuels to reduce pollution and fuel processing costs. Due to expensive and time-consuming property testing, models that predict key properties from optical data would initially vet potential additives before investment and bench-scale testing. Attenuated Total Reflection...
Resource Type:: Masters Thesis
Full Text:: : Kyle E. Niemeyer High-potential molecules derived from biomass sources may suitably replace or supple

Fracture energies of Zircaloy and some zirconium alloys

Creator:: Rawers, James C.
Abstract:: The fracture mechanics of Charpy V-notch specimens of Zircaloy-4 and phosphorus contaminated Zircaloy-4 were investigated. Three-point bend and impact tests with Charpy V-notch samples provided an efficient and economical method of fracture evaluation. Fracture failure was monitored by the force-displacement curve. Failure was initially analyzed using fracture toughness values as...
Resource Type:: Dissertation
Full Text:: Design 14 C. Material and Sample Preparation. . . 14 D. Pre-cracking 16 E. Static Fracture Loading 17 F

A product development process measurement methodology applied to small manufacturing companies

Creator:: Schlegel, Stephen C.
Abstract:: The implementation of concurrent engineering into many large companies has greatly improved their product development processes. These companies have seen significant gains in quality and customer satisfaction with reduced product costs, defects, and time-to-market (Lake, 1992). Many large companies have successfully employed this relatively new product development philosophy. However, smaller...
Resource Type:: Masters Thesis
Full Text:: applied to small manufacturing companies AN ABSTRACT OF THE THESIS OF Stephen C. Schlegel Jr. for the

Modified linear theory and Kalman filtering for in flight projectile impact point prediction

Creator:: Hainz, Leonard C.
Abstract:: A method for real time in-flight prediction of the ground impact point of an indirect fire projectile is investigated. The method investigated is comprised of a combination of an impact point predictor and an extended Kalman filter state estimator based on modified linear theory. The modified linear theory model is...
Resource Type:: Masters Thesis
Full Text:: round to substantiate these claims. NOMENCLATURE A,B,C,E epicyclic matrix coefficients velocity

On the modeling and control of horizontal pendulum wave energy converters

Creator:: Boren, Blake C.
Abstract:: Presented is an investigation into the modeling, active control design, and simulation of a generic horizontal pendulum wave energy converter, known as a PWEC. A description is provided of the dominant attributes PWECs have, showcasing their promising potential as wave energy converters. Seeking to further promote this potential, an active...
Resource Type:: Masters Thesis
Full Text:: Energy Converters AN ABSTRACT OF THE THESIS OF Blake C. Boren for the degree of Master of Science in

The experimental characterization of membrane behavior in two-phase gas extraction

Creator:: Cappello, Nicholas C.
Abstract:: Understanding the behavior of hydrophobic membranes is important for applications where separating a gas from a liquid-gas mixture is beneficial. For example, in-situ vapor extraction can be used in microscale heat sinks to improve heat transfer and flow stability. In this study, gas is experimentally evaluated flowing through flexible polytetrafluoroethylene...
Resource Type:: Masters Thesis
Full Text:: available vapor (g/min): (a) 0.26 (b) 0.72 (c) 0.98 (d) 1.38 and (e) 1.55. Symbols correspond to Table 6.10

Simulating changing diameter distributions in a softwood sawmill

Creator:: Salichon, Maxence C.
Abstract:: Sawmills are very complex systems that involve many manufacturing processes. The variability of their raw material adds further to this complexity as each log has characteristics that determine its processing path. Therefore, computer simulation is a very useful technique for analyzing sawmill performance. This thesis describes a simulation computer model...
Resource Type:: Masters Thesis
Full Text:: Abstract appr AN ABSTRACT OF THE THESIS OF Maxence C. Salichon

NOx emissions for a gas turbine as a function of fuel-bound nitrogen and other variables

Creator:: Faye, William C.
Abstract:: Emissions of oxides of nitrogen from a small (15 kW) turbine generator burning high fuel bound nitrogen fuels were measured by a chemiluminescence method. Kerosene was used as the base fuel and pyridine was added to achieve different fuel bound nitrogen levels. Mixtures of 0.0%, 0.5%, and 1.0% (by weight)...
Resource Type:: Masters Thesis
Full Text:: 80 70 60 LaJ 21 50 E c Et 40 30 20 10 0 FIGURE 20 ADJUSTED NO VS AIR/FUEL RATIO AND

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:: Frt13 D a. r.I . a a . i I . . 11400 c I; . Q 0 . Li1300 E c ! Q i c 1 4 0 ,i11,06-0N. El 1200

An investigation into the electrochemical removal of unwanted residual material protrusions from parts

Creator:: Bingham, Bruce C.
Abstract:: Manuscript I: The removal of residual casting material from gating has traditionally been performed by abrasive grinding techniques. However, high amounts of belt wear can occur when working with high strength alloys, especially those typically seen in the aerospace industry. An alternative machining process called electrochemical machining (ECM) uses electrolysis...
Resource Type:: Masters Thesis
Full Text:: -Manufacturing Technology, vol. 52, pp. 165-168, 2003. [4] K. E. D. C. A.R. Mount, "Theoretical analysis of

Modeling the thermal inkjet firing process

Creator:: Davis, Colin C.
Abstract:: A numerical model has been developed to simulate the firing of an inkjet printhead. The model evaluates the heat generation and diffusion within the thin film structure, the phase change and vapor bubble growth in the ink, and the subsequent flow of ink from the orifice. The heat transfer is...
Resource Type:: Masters Thesis
Full Text:: THE THESIS OF Colin C. Davis for the degree of Master of Science in Mechanical Engineering presented

Development of Two-Color Laser Induced Fluorescence Fluid Temperature Imaging for Free Convection Heat Transfer Applications

Creator:: McAfee, Rachel C.
Abstract:: The development of a continuous and reliable cooling method for computer chips is an evolving subject requiring continuous research in both computer science and thermal management. Two-dye laser induced fluorescence (LIF) provides a minimally invasive way to investigate electronics cooling fluid behavior. Dielectric fluids are of particular interest as they...
Resource Type:: Honors College Thesis
Full Text:: was examined at heat fluxes ranging from 0.16 to 0.76 W/cm2 and ambient temperatures of 20-45°C. A

An In Vivo Functional Evaluation, in an Avian Model, of Passive Implantable Designs to Restore Hand Function after Spinal Cord Injury

Creator:: Casebier, Justin C.
Abstract:: The surgical standard of care to partially restore grasping function after a traumatic spinal cord injury is a reconstructive tendon transfer-surgery that connects all four finger flexors to an expendable wrist extensor. While restorative, this surgery has a fundamental problem; the movement of all four fingers flexors is directly coupled,...
Resource Type:: Masters Thesis
Full Text:: ) The strut implant. (c-d) The U-shaped implant. (e-g) The bar implant

Advanced Computational Modeling Methods for Floating Offshore Wind Systems

Creator:: Devin, Michael C.
Abstract:: Floating offshore wind energy is anticipated to become a competitive source of renewable energy by the late 2020s, but the industry must reduce costs and uncertainties associated with the technology to do so. Identifying solutions to these problems frequently relies on computational modeling, which presents technical shortcomings limiting the versatility...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Michael C. Devin for the

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:: THESIS OF William C. Jost for the degree of Master of Science in Mechanical Engineering presented on

Operation of a High-Temperature Oxidation Reactor for Thermochemical Energy Storage

Creator:: Ramsey, Owen C.
Abstract:: The cost of long-duration energy storage poses one of the most significant limitations on the penetration of renewables into power grids. Thermochemical energy storage has great potential to reduce this cost through the use of a reversible redox reaction pair that has a high enthalpy of reaction. The chemical nature...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Owen C. Ramsey for

Vertical Axis Pendulum Wave Energy Converters : Investigating Control Strategies and the Deployment of a Scaled Generic Prototype

Creator:: Boren, Blake C.
Abstract:: Vertical Axis Pendulum Wave Energy Converters (VAPWECs) are thought to be both effective and robust at converting ocean wave energy into usable electricity. Seeking to build upon and investigate such potential, this work examines the merits of actively controlling a generic VAPWEC's pendulum for the purpose of increasing the converter's...
Resource Type:: Dissertation
Full Text:: output matrix, C, the error dynamics in Equation (2.7) become ė = −CΥ + r(t), (2.8) 17 where C

TO PAY OR NOT TO PAY, THAT IS THE QUESTION

Creator:: Oster, Sidney C.
Abstract:: The “why” of any situation is one of the most important questions to ask. Inventors have ideas every day. Some ideas are the brilliant ideas that lead to a better tomorrow. To protect these ideas, inventors turn to patents, a governmental grant of the right to stop others, for a...
Resource Type:: Honors College Thesis
Full Text:: abandon it. Keywords: Patent, Invention, Abandonment Corresponding e-mail address: osters

Towards reliable and survivable ocean wave energy converters

Creator:: Brown, Adam C.
Abstract:: Ocean wave energy is a new and developing field of renewable energy with great potential. The energy contained in one meter of an average wave off the coast of Newport Oregon could supply dozens of homes with electricity. However, ocean waves are usually quite irregular which leads to large bursts...
Resource Type:: Masters Thesis
Full Text:: OF THE THESIS OF Adam C Brown for the degree of Master of Science in Mechanical Engineering

Optimizing shared mooring and anchoring strength for floating offshore wind turbine arrays

Creator:: Devin, Michael C.
Abstract:: Energy from offshore wind could provide substantial power generation if further utilized. One area of significant research focus is in developing floating offshore wind devices, which would allow for wind energy to be gathered in deep water where driven monopile turbines are infeasible. However, floating offshore wind is not currently...
Resource Type:: Honors College Thesis
Full Text:: . DeGroot, C. P. Aubeny, B. D. Diaz, A. T. Myers and M. E. Landon, "System reliability of floating

A Comparative Study of Funding and Budgeting Profiles of Collegiate Athletic Bands, with an Emphasis on Alumni Relations

Creator:: Hunter, Sean C.
Abstract:: This study is a comparison to establish similarities between the funding resources of college and university athletic bands. The secondary objective is to determine the funding potential that exists as a result of alumni relations. In order to obtain funding information for a variety of athletic band programs, a survey...
Resource Type:: Honors College Thesis
Full Text:: Final Copy AN ABSTRACT OF THE THESIS OF Sean C

Part-Load Optimization of an Organic Rankine Cycle

Creator:: Ramsey, Owen
Abstract:: Waste-heat-recovery Organic Rankine Cycle (ORC) systems use excess heat from industrial processes to produce electrical power. In many cases, the temperatures and mass flow rates of these excess-heat streams vary significantly over time, causing the ORC to often operate far from its design point. In this study, a control strategy...
Resource Type:: Honors College Thesis
Full Text:: strategy is investigated for an ORC using refrigerant R1233zd(E), with the objective of maximizing net

Transient fuel pin temperature calculations using describing functions

Creator:: Guidotti, Timothy E.
Abstract:: An important element in rector safety and fuel performance assessments is the efficient calculation of the time dependent temperature profiles within reactor fuel pins. Because the fuel pins have temperature dependent thermal properties, the governing partial differential equations are nonlinear. Traditionally, finite difference or finite element methods have been used...
Resource Type:: Masters Thesis
Full Text:: Professor of Mechanical E ineering in Charge of Major Redacted for Privacy l/111^ c V I,/ s../ Head of D

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:: of lift Cp Coefficient of pressure C Coefficient of thrust t e Base of the natural

Thermal annealing of Mo/Si multilayers to assess the stability relevant to soft x-ray projection lithography

Creator:: Viliardos, Michael A.
Resource Type:: Masters Thesis
Full Text:: - ^ o e n 0 0 r* - C M Is - C M r - C O C O oC D C M c o C O o o C O c o r - or ^ mC

Dynamic modeling of a refrigerant boiler for power applications

Creator:: Curry, Thomas Haitsch
Abstract:: A dynamic model of a refrigerant boiler has been produced by the use of distributed parameter modeling techniques. A number of elementary cases were studied and were used as an aid in the final model formulation. Modeling using distributed parameters employed the use of mesh equations which were then reorganized...
Resource Type:: Masters Thesis
Full Text:: ' = C PW o - H REF T. h W (e T - e) 1 2 IT = -0.0801 + 6.24 X 10 -6 mw + 0.1262 exp(-0.0128%) w

Periodic system analysis with application to wind turbines

Creator:: Bahrami, Mohsen
Abstract:: An algorithm is developed to compute the time averaged, output statistics of a linear system with periodic coefficients forced by stationary white noise. The algorithm makes use of Floquet theory and introduces the averaged system dynamics matrix to obtain more favorable numerical performance. The time series approach to averaged statistics...
Resource Type:: Dissertation
Full Text:: Book Co., Inc., 1971, pp. 50-150. 23. Bryson, A. E. and Ho, Y. C., Applied Optimal Control, Hemisphere

Single rod wetting with simulated fuel-cladding gap

Creator:: Gaines, Stephen Frank
Resource Type:: Masters Thesis
Full Text:: approved: Redacted for Privacy Richard E. Collingha h.D. This thesis presents the results of falling

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:: equation (2.3.2) is equivalent to minimizing the following criteria(4) Min w,v J = E lim ÷-c°to 1 f b

The effect of primary alpha, nickel, and chromium on the creep properties of Ti 6242Si

Creator:: Thiehsen, Kurt
Resource Type:: Masters Thesis
Full Text:: 4.0e-3 = 3.0e-3 -- 01 I- c/)' a. a> 2.0e-3 - 6., cl E T.'. 1.0e-3a., 0.0e+0 0.0 1.0e-8 Figure

Linearized model for wind turbines in yaw

Creator:: Chaiyapinunt, Somsak
Abstract:: The analysis of rigid hub, three-bladed horizontal-axis, axisymmetric wind turbines in yaw is made using a linearized, four-degree-of-freedom model. The linearized equations of motion of rotor and nacelle are developed using quasi-steady blade element theory and Lagrange's equations. The yaw behavior of the system is studied from coefficients of the...
Resource Type:: Dissertation
Full Text:: coefficient c() torque coefficient C t tangential force coefficient CT thrust coefficient drag force e

Turbulent Combustion Analysis of Large Hydrocarbon Fuels in a Reduced Pressure Environment

Creator:: Schorn, Nathan E.
Abstract:: The aviation industry is pushing for better fuels and gas turbine engines for several reasons: cost, emissions, and to a lesser extent high-altitude relights. One aspect that research has been focused on to help reduce costs, emissions and better understand high-altitude relights is studying the combustion behavior of the fuel...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Nathan E. Schorn for the degree of Master of

A model reference adaptive system for control of a flexible mechanical manipulator

Creator:: Lee, Byeung Kyun
Abstract:: For control of a flexible manipulator, the assumed- mode method is applied to the mathematical model of the model reference adaptive system. In the assumed-mode method, the flexible, continuous manipulator is described by a limited number of degrees of freedom. A modified model reference adaptive system is studied for direct...
Resource Type:: Dissertation
Full Text:: ][m]-1) [C] ([M]-1[U]T[m]) or N cw [0] = E ( 2i i ) (Em)(10i) (Emhu}i)T 1.1 Doti (2.3.62

Solution of unsteady, two-dimensional, inviscid flows

Creator:: Kuo, Ying-Ming
Abstract:: The general theory of characteristics is reviewed for hyperbolic partial differential equations of n independent variables. The application of the theory of characteristics is made to unsteady, two-dimensional, rotational, inviscid flows; unsteady, two-dimensional, irrotational, inviscid flows; and unsteady, axial symmetric, inviscid flows. The characteristic surfaces and the compatibility relations are...
Resource Type:: Masters Thesis
Full Text:: ENGINEERING presented on Ag>c, «a ` /J (Major) (Date) Title: SOLUTION OF UNSTEADY, TWO - DIMENSIONAL

The effects of thermal processing on the mechanical properties of AA2024, 2014 and 2618 aluminum alloys

Creator:: Li, Xiao, 1963-
Abstract:: This study determined the independent effects of various homogenization cycles and precipitation treatments on the elevated temperature workability and the final ambient temperature mechanical properties of AA2024 aluminum alloy and on the T3 tensile properties of 2014 aluminum alloy as well as T6 tensile properties of 2618 and 2618 (Curich)...
Resource Type:: Masters Thesis
Full Text:: 250 c? 200 -e 0, 150 a, 100 >- Fig.4 The aging characteristics of two aluminum alloys at elevated

Performance and optimum design analysis/ computation for propeller type wind turbines

Creator:: Walker, Stel Nathan
Abstract:: Development of a performance analysis for propeller type wind turbines is presented. The analysis uses a strip theory approach that includes tip-loss and blade interference. A comparison is presented between analysis and test data. The comparison indicates that the analysis predicts wind turbine performance to an accuracy that is within...
Resource Type:: Dissertation
Full Text:: C) V axial component of induced velocity (Appendix E) VT tangential component of induced velocity

The impacts of ionization chemistry on hydrocarbon detonation

Creator:: Zaiger, Matthew F.
Abstract:: As carbon emissions are negatively impacting ecosystems across the globe, researchers are in a race against time to provide cleaner and more eÿcient power. Detonation engines can help meet the increasing demands for cleaner and more eÿcient power generation by providing an alternative means to use oxy-fuel combustion for carbon...
Resource Type:: Masters Thesis
Full Text:: Impacts of Ionization Chemistry on Hydrocarbon Detonation Abstract approved: Kyle E. Niemeyer As carbon

Discrete-time explicit model reference adaptive control for robotic manipulators

Creator:: Yuh, Junku
Abstract:: In this dissertation a direct approach to discrete-time model reference adaptive control (MRAC) based on hyperstability theory is proposed to control industrial robotic manipulators. For industrial robots and manipulators, which usually have highly nonlinear and complex dynamic equations and often have unknown inertia characteristics, it is very difficult to achieve...
Resource Type:: Dissertation
Full Text:: if Ilx0-xell<6(E), then IIP(tk,x0,t0) -xell<c for all t t o Definition 2.2.3 The equlibrium state

Laminate mixing in microscale fractal-like merging channel networks

Creator:: Enfield, Kent E.
Abstract:: A two-dimensional model was developed to predict concentration profiles from passive, laminar mixing of concentration layers formed in a fractal-like merging channel network. Both flat and parabolic velocity profiles were used in the model. A physical experiment was used to confirm the results of the model. Concentration profiles were acquired...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Kent E. Enfield for the degree of

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:: -9 we get a 0 h\rs aPr E aPrE a, (s, y'`=0) - a - 2 2+ 2 2 (1 + Za h2)] s+ 1 y,C s h s h a s

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:: Dr. R. E. Coll jlgham This report presents a refined method for the calculation of fuel centerline

The Feasibility of Process Intensification of the Water-Gas Shift Reaction using Differential Temperature Microreactors

Creator:: Tolley, Thomas E.
Abstract:: Hydrogen is an increasingly attractive low-carbon energy carrier for a variety of stationary and mobile applications. Currently, the vast majority of hydrogen in the United States is produced via the energy intensive steam reforming of natural gas. The cost and carbon emissions associated with hydrogen production can be reduced by...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Thomas E. Tolley for the

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