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Film Boiling Heat Transfer From An Oscillating Sphere, L. G. Rhea, R. G. Nevins Jan 1969

Film Boiling Heat Transfer From An Oscillating Sphere, L. G. Rhea, R. G. Nevins

Mechanical and Aerospace Engineering Faculty Research & Creative Works

An experimental investigation has been undertaken to determine the effect of oscillation of the heat transfer surface on turbulent film boiling heat transfer. A transient technique was used to calculate the heat flux from copper spheres of 1 in., 3/4 in., and 1/2 in. dia. In all tests, saturated liquid nitrogen at atmospheric pressure was used as the boiling fluid. The data obtained were found to be in good agreement with published theory at zero frequency. The range of frequencies studied was from zero to approximately 12 cps at peak-to-peak amplitudes of 2 in. and 1 in., i.e., at amplitude-to-diameter …

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Free-Convection Heat Transfer From An Inclined Heated Flat Plate In Air, S. C. Yung, R. B. Oetting Jan 1969

Free-Convection Heat Transfer From An Inclined Heated Flat Plate In Air, S. C. Yung, R. B. Oetting

Mechanical and Aerospace Engineering Faculty Research & Creative Works

No abstract provided.

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Design, Construction, And Initial Experiments With High Hydrostatic Pressure Extrusion Device, Edward Moniz Jorge Jan 1969

Design, Construction, And Initial Experiments With High Hydrostatic Pressure Extrusion Device, Edward Moniz Jorge

Masters Theses

"The purpose of this study was to design and operate equipment with which the study of polymer extrusion would be possible at hydrostatic pressures up to 50,000 psi. By hydrostatic pressure is meant the pressure of the region of the extrudate. A study of the effects of back pressure on the extrusion of silicone gum was attempted--Abstract, Page ii.

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Analysis Of Small Water Management Structures In Irrigation Distribution Systems, Gaylord V. Skogerboe, Wynn R. Walker, Brent B. Hacking, Lloyd H. Austin Jan 1969

Analysis Of Small Water Management Structures In Irrigation Distribution Systems, Gaylord V. Skogerboe, Wynn R. Walker, Brent B. Hacking, Lloyd H. Austin

Reports

The Irrigation and Drainage Research Conference conducted at Utah State University (ASCE, 1964) delineated many of the research needs regarding “Small Low- Cost Hydraulic Structures for Conveyance and Distribution Systems,” which was one of the six topics considered at the conference. In discussing possibilities for accomplishing the recommended research, it was suggested by some panel members that a considerable portion of the work could be undertaken by graduate students, particularly at the Master of Science level. The intent of this report has been to sort through the large volume of literature in an attempt to define the specific research needs …

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Formulation Of A Mathematical Model For The Allocation Of Colorado River Waters In Utah, Rick L. Gold, James H. Milligan, Calvin G. Clyde Jan 1969

Formulation Of A Mathematical Model For The Allocation Of Colorado River Waters In Utah, Rick L. Gold, James H. Milligan, Calvin G. Clyde

Reports

A Mathematical model for the allocation of Utah’s water resources is formulated in the linear programming format. The availability of water from various sources is considered with the demands for water in each of the nine hydrologic study areas of Utah. The applications of mathematical models of this type are studied and the merits of the linear programming approach are discussed.

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Additional Magnetic Disaccommodations In Ternary Iron Base Alloys, R. H. Graham, Manfred Wuttig Jan 1969

Additional Magnetic Disaccommodations In Ternary Iron Base Alloys, R. H. Graham, Manfred Wuttig

Materials Science and Engineering Faculty Research & Creative Works

No abstract provided.

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Mass And Heat Transfer Relations In Evaporation Through Porous Membranes, Marshall E. Findley, V. V. Tanna, Y. B. Rao, C. L. Yeh Jan 1969

Mass And Heat Transfer Relations In Evaporation Through Porous Membranes, Marshall E. Findley, V. V. Tanna, Y. B. Rao, C. L. Yeh

Chemical and Biochemical Engineering Faculty Research & Creative Works

This study concerns rates of evaporation and mass transfer of water vapor from a heated salt solution through a water repellent porous membrane to a cooled water condensate. This transfer is a result of temperature differences and corresponding vapor pressure differences across the membrane. Three groups of experiments were carried out which indicate that the major factor influencing the rates of transfer is diffusion through a stagnant gas in the membrane pores. However, an equation considering film heat transfer coefficients, membrane thermal conductivity, and an empirical correction based on temperature driving force appears to be necessary for representing all the …

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On The Influence Of Surface Roughness On The Determination Of Diffusion Constants, Manfred Wuttig Jan 1969

On The Influence Of Surface Roughness On The Determination Of Diffusion Constants, Manfred Wuttig

Materials Science and Engineering Faculty Research & Creative Works

No abstract provided.

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Conference Proceedings Of The Symposium On Turbulence Measurements In Liquids, September 1969, University Of Missouri--Rolla Jan 1969

Conference Proceedings Of The Symposium On Turbulence Measurements In Liquids, September 1969, University Of Missouri--Rolla

Symposia on Turbulence in Liquids

No abstract provided.

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Isotope Effect Of Carbon Diffusion In An Fe-Si Alloy, Manfred Wuttig, E. T. Yen Jan 1969

Isotope Effect Of Carbon Diffusion In An Fe-Si Alloy, Manfred Wuttig, E. T. Yen

Materials Science and Engineering Faculty Research & Creative Works

The isotope effect of carbon diffusion in dilute iron silicon alloys containing 28Si and 30Si has been measured below room temperature using the Dis accommodation technique. The time dependence of the reluctivity has been analyzed in terms of two relaxation processes which are due to the reorientation of carbon interstitials in Fe-Fe and Fe-Si sites respectively. The ratio of the relaxation times of the two carbon isotopes 13C and 12C τ13/τ12 is 1.037 for the former and 1.007 for the latter process in the Fe+28Si alloy. The ratios of the relaxation times of the same carbon isotope 12C contained in …

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Evaluation Of The Performance Of Ultrasonic Equipment For Pavement Thickness Measurements, Charles F. Scholer, Raymond Doran Pavlovich Jan 1969

Evaluation Of The Performance Of Ultrasonic Equipment For Pavement Thickness Measurements, Charles F. Scholer, Raymond Doran Pavlovich

JTRP Technical Reports

No abstract provided.

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Accident Analysis At Railroad-Highway Grade Crossings In Urban Areas: Technical Paper, William D. Berg, Joseph C. Oppenlander Jan 1969

Accident Analysis At Railroad-Highway Grade Crossings In Urban Areas: Technical Paper, William D. Berg, Joseph C. Oppenlander

JTRP Technical Reports

No abstract provided.

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An Operational Planning Information System For Small Communities : Draft Copy, Robert J. Maxman, William Louise Grecco Jan 1969

An Operational Planning Information System For Small Communities : Draft Copy, Robert J. Maxman, William Louise Grecco

JTRP Technical Reports

No abstract provided.

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Generation Of Design Equations In Asynchronous Sequential Circuits, Gary K. Maki, James H. Tracey, Robert J. Smith Jan 1969

Generation Of Design Equations In Asynchronous Sequential Circuits, Gary K. Maki, James H. Tracey, Robert J. Smith

Electrical and Computer Engineering Faculty Research & Creative Works

One step in the synthesis procedure for realizing an asynchronous sequential switching circuit is the generation of next-state and output state equations from a simplified and coded flow table description of the circuit. The usual approach for determining these equations is to first construct a state table from the coded flow table, and then construct transition and output tables. For large flow tables this can be quite a lengthy procedure. This note describes an algorithm which simplifies the synthesis procedure for normal fundamental-mode circuits by permitting the determination of these equations without explicit construction of the state table, transition table, …

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Transients Analysis Of Distributed Systems, T. N. Trick, Jack J. Bourquin Jan 1969

Transients Analysis Of Distributed Systems, T. N. Trick, Jack J. Bourquin

Electrical and Computer Engineering Faculty Research & Creative Works

An isomorphic relation exists between the transient response of systems whose transfer functions are of the form H(s)=B and the transient response of systems whose transfer functions are of the form [formula omitted]. Several interesting conclusions are drawn from this relationship concerning the transient response of distributed systems. Copyright © 1969 by The Insitute of Electrical and Electronics Engineers Inc.

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Numerical Calculation Of Distributed-Network Transfer Matrices, Robert C. Peirson, Edward C. Bertnolli Jan 1969

Numerical Calculation Of Distributed-Network Transfer Matrices, Robert C. Peirson, Edward C. Bertnolli

Electrical and Computer Engineering Faculty Research & Creative Works

No abstract provided.

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Structure Of Shock Waves With Nonequilibrium Radiation And Ionization, Harlan F. Nelson, R. Goulard Jan 1969

Structure Of Shock Waves With Nonequilibrium Radiation And Ionization, Harlan F. Nelson, R. Goulard

Mechanical and Aerospace Engineering Faculty Research & Creative Works

The investigations of this study are concerned with: (1) the physical processes that occur in the precursor and in the nonequilibrium region behind a strong shock wave during its approach to equilibrium in an argon like gas; (2) the influence of different atom-atom collisional rates in the relaxation region on the precursor; and (3) the cause of precursor ionization, which in this study has been assumed to be the photoionization of both the ground and excited states. The argon like gas is regarded as a combination of two gases: one consisting of electrons and the other of atoms and ions. …

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Methods For Evaluating The Performance Of Small Acoustic Filters, William S. Gatley, Raymond Cohen Jan 1969

Methods For Evaluating The Performance Of Small Acoustic Filters, William S. Gatley, Raymond Cohen

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Experimental methods are needed for determining the characteristics of small acoustic filters used in systems with pulsating gas flows. These characteristics could then be used to predict the performance of proposed filter designs in a particular system, according to plane wave acoustic theory. Dependence on trial-and-error experimentation in solving noise control problems would thus be minimized. A literature survey revealed only a few earlier attempts to evaluate the acoustic performance of small filters and filter elements. Three methods for determining reflection and transmission factors are described, evaluated, and compared. A method employing a standing wave tube of unique design is …

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Diffusion Of Iron And Cobalt In Nickel Single Crystals, Charles Frederick Heuer Jan 1969

Diffusion Of Iron And Cobalt In Nickel Single Crystals, Charles Frederick Heuer

Doctoral Dissertations

"Diffusion coefficients of iron-59 in nickel have been determined in the temperature range 815°C to 1200°C. The temperature dependence can be represented by an Arrhenius type relationship,...The effect of the isotopic mass on the diffusion coefficient of cobalt in nickel has also been investigated. The isotope effect parameter, E, was found to vary from .26 to .84 over the temperature range 970.5°C to 1200°C. Both results are consistent with the single vacancy mechanism of diffusion. No evidence of divacancy contributions to the mass transport has been found"--Abstract, Page i.

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Experimental Determination Of Dynamic Properties Of Aluminum Including Poisson's Ratio, Terry Lee Holman Jan 1969

Experimental Determination Of Dynamic Properties Of Aluminum Including Poisson's Ratio, Terry Lee Holman

Masters Theses

"Two rods of 7075-T651 aluminum are longitudinally impacted to investigate the material's dynamic properties. The test rod, initially at rest, is instrumented with strain gages to record the strain-time history after the impact rod, accelerated to uniform velocity by an air gun launcher, strikes the test rod. A camera records the strain-time pattern displayed on an oscilloscope. The experiment indicates a consistent rise time of approximately 9 µsec. Simple one-dimensional theory correlates well with the experimental data. Compensation is included for the transverse sensitivity of the gages used. The dynamic values for both the modulus of elasticity and Poisson's ratio …

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Current Characteristics Of Electrically Sprayed Glycerine, Larry Eugene Stoddard Jan 1969

Current Characteristics Of Electrically Sprayed Glycerine, Larry Eugene Stoddard

Masters Theses

"The current carried by electrically-sprayed glycerine was measured, and an empirical relation was obtained for single-jet spraying, given by I = KIV0.45M0.55̇d-0.18 where V is the electrode voltage, Ṁ the mass-flow rate, and d the electrode spacing, the electrodes being a capillary and collecting plate. Peculiarities of the current waveform, including an exponentially rising envelope, for unstable-jet spraying and multiple-jet spraying, were recorded"--Abstract, page ii.

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A Flood Frequency Study For Small Watersheds In Missouri, Ronald Anthony Rusch Jan 1969

A Flood Frequency Study For Small Watersheds In Missouri, Ronald Anthony Rusch

Masters Theses

"The quantity and quality of streamflow data available on small watersheds in Missouri has improved in the last ten years. However, it will be years before there is sufficient data on both the large and small watersheds to enable investigators to conduct extensive studies in the state. This study of 70 small watersheds within the state of Missouri presents a technique to estimate the discharge from watershed of 25 square miles or less...Results from this study may be used in the design of small hydraulic structures such as culverts, bridges, and dams for small reservoirs"--Abstract, page ii.

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An Impact Sensitivity Study Of Reactive Materials, Carl E. Delong Jan 1969

An Impact Sensitivity Study Of Reactive Materials, Carl E. Delong

Masters Theses

"The impact sensitivity of a potassium chlorate, stabilized red phosphorous, Quso, and magnesium oxide mixture in a 34/14/4/2 ratio has been found to be about 18 ł 5 gram-centimeters for a 50% sensitivity to initiation. Chi-square tests at the 95% confidence level have determined that it is not possible to reject the hypothesis that the distribution is either normally distributed or log-normally distributed within the 50% range. Humidity, aging, and some additives were found to desensitize the mixture. Energy versus drop weight and test height curves show that momentum considerations are crucial over large test ranges in studies of impact …

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Fault Diagnosis Of Sequential Circuits, Virgil Willis Hughes Jan 1969

Fault Diagnosis Of Sequential Circuits, Virgil Willis Hughes

Masters Theses

"Compared to the problem of combinational network (CN) diagnosis, that of sequential network (SN) diagnosis has been an extremely difficult one. Present techniques of SN diagnosis are difficult to apply, and generally lead to lengthy test schedules or additional logic. This paper presents a new approach to the SN diagnostic problem which results in a substantially simpler technique than those found in the literature. The approach is to modify the SN so that it can be diagnosed from a combinatoric point of view. This is accomplished by the addition of outputs for testing purposes to certain lines in the circuit--no …

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Direct Measurement Of Dynamic Capacitance, Norman G. Dillman Dec 1968

Direct Measurement Of Dynamic Capacitance, Norman G. Dillman

Electrical and Computer Engineering Faculty Research & Creative Works

No abstract provided.

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A Theoretical Model For Gas Separation In A Glow Discharge: Cataphoresis, Fredrick H. Shair, Donald S. Remer Nov 1968

A Theoretical Model For Gas Separation In A Glow Discharge: Cataphoresis, Fredrick H. Shair, Donald S. Remer

All HMC Faculty Publications and Research

A theoretical model for transient and steady-state cataphoresis is developed starting with the macroscopic equations of continuity. After a brief breakdown period, the impurity ions are assumed to be closely coupled with their neutral counterparts. The basic assumptions in the model are that after breakdown, the level of ionization of the impurity, and the axial electric field remain constant; it is demonstrated that under these conditions a system involving rapid ionization-recombination reactions is equivalent to a system in which no reaction occurs, but in which the "effective'' ion mobility is a product of the true ion mobility and the fraction …

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Rational Analysis Of Kentucky Flexible Pavement Design Criterion, Herbert F. Southgate, Robert C. Deen, James H. Havens Nov 1968

Rational Analysis Of Kentucky Flexible Pavement Design Criterion, Herbert F. Southgate, Robert C. Deen, James H. Havens

Kentucky Transportation Center Research Report

Rational criteria for the structural design of pavements are emerging from classical theories equated to the observed behavior of real pavements. Pavement behavior is known to be affected by traffic, variations in soil support, and variations of component thicknesses. Considerable attention has been devoted to the mechanistic response of pavements to static and dynamic loads and to the development of theoretical design procedures, which rely, in part, on the computation of certain critical stresses, strains, and(or) deflections in the structure. A computer program (1) for the elastic analysis of multilayered pavement systems has enabled an extensive investigation of the effects …

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Behavior Of Steel Building Connections Subjected To Inelastic Strain Reversals Experimental Data, E. P. Popov, R. B. Pinkney Nov 1968

Behavior Of Steel Building Connections Subjected To Inelastic Strain Reversals Experimental Data, E. P. Popov, R. B. Pinkney

CCFSS Library (1939 - present)

No abstract provided.

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Design Recommendations For Diaphragm-Braced Beams, Columns And Wall-Studs, T. V. S. R. Apparao, George Winter, S. J. Errera Oct 1968

Design Recommendations For Diaphragm-Braced Beams, Columns And Wall-Studs, T. V. S. R. Apparao, George Winter, S. J. Errera

CCFSS Library (1939 - present)

INTRODUCTION Light gage steel panels are often used as wall sheathing, roof decking or floor covering in steel framed buildings. These panels carry loads normal to their plane by virtue of their bending strength. Also, diaphragms formed by interconnecting such panels can resist shear deformation in their plane. Because of this shear resisting capacity, diaphragms can be very effective in bracing columns and beams of a steel frame against lateral buckling and, thus, increase the load carrying capacity of these members. For wall columns, such diaphragm bracing may be either directly attached or connected to girts which in turn are …

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Investigation Of Torsional-Flexural Buckling Of Thin-Walled Open Sections With Unequal End Eccentricities, Nuri Celebi, George Winter Oct 1968

Investigation Of Torsional-Flexural Buckling Of Thin-Walled Open Sections With Unequal End Eccentricities, Nuri Celebi, George Winter

CCFSS Library (1939 - present)

INTRODUCTION Compression members of thin walled open sections may buckle in the torsional-flexural mode at loads lower than the Euler buckling load, because of their low torsional rigidity. Doubly symmetric sections, loaded eccentrically in the plane of symmetry, buckle in the torsional-flexural mode when sufficient strength against flexural yielding is provided in the plane of loading. In singly symmetric sections, the shear center and centroid do not coincide. When such sections are loaded in the plane of symmetry, flexural buckling out of the plane of loading is possible only if the load acts at the shear center. Otherwise, torsional flexural …

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