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Measurement Of Pressure And Velocity In A Heat Generated Acoustic Wave, Hernan Hirsch

Mechanical Engineering ETDs

The purpose of this study is (1) to investigate experimentally the magnitude and the phase angle between acoustic pressure ad velocity of the Sondhauss oscillation; (2) to investigate experimentally the pressure times velocity diagram; (3) to investigate experimentally the pressure versus volume diagram and its analogy to the Stirling heat engine, (4) to list observations of the behavior of the gas inside the tube, and the possible influence of these observations on the sound pressure level or velocity of the flow.

A General Approach To The Analysis Of Particle Transport In Solids--With Particular Application To High Frequency Effects On Charge Transport In Semiconductor Devices, Raymond A. Gore

Electrical and Computer Engineering ETDs

The purpose of this first chapter is to review the basis of the diffusion theory description of particle motion in solid material and its application in the analysis of semiconductor devices. Diffusion theory, as used throughout this dissertation, will be used to mean the special case of the more rigorous transport theory that results from assuming an infinite particle velocity and a constant ratio of particle velocity to the probability of a collision. Thus, the discussion of diffusion theory begins with transport theory, and in particular with the Boltzmann transport equation. Therefore, this chapter begins with a formulation of the …

Effect Of Sample Geometry On Decay Constant Measurements In Water Using The Pulsed Neutron Technique, Debow Freed

Nuclear Engineering ETDs

The pulsed neutron technique has been employed at a steadily increasing rate since significant results from its use were first reported in 1954. This technique has permitted direct measurement of several parameters important in the nuclear field which previously had to be measured by indirect means.

An Experimental Investigation Of The Continuous Penetration Of A Blunt Body Into A Simulated Cohesionless Soil., John Lewis Colp

Civil Engineering ETDs

The penetration of one object into a larger mass may well have been one of the earliest interests of man. History shows that early man was well aware of the occurrence of the penetration event by his use of spears and other projectiles in his search for food. Interest in penetration events has been continuous through man's development. Today this interest has even outstripped man's natural environment to include the serious study of penetration into extra-terrestrial bodies such as the lunar surface.

The Problem:

The penetration of many materials is currently being studied by many investigators. Some of the materials …

Preliminary Design Of A Hydraulic Vibration Machine With Variable Amplitude And Frequency, Using Multistage Amplification And Feedback Control, Melvin Joseph Merrell

Theses and Dissertations

Essentially there are three types of vibration machines mechanical, electrodynamic, and electrohydraulic (hydraulic). Each of these machines has characteristics which make it suitable for particular areas of use.

X-Ray Diffraction And Electron Microscopy Studies Of Glasses Containing Antimony, Sadek Momtaz Tadross

Archived Theses and Dissertations

No abstract provided.

A Preliminary Experimental Study Of The Turbulence Decay In The Wake Of A Hemisphere In Free-Surface Flow, Jiin-Jen Lee

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

Flows observed in open channels are usually turbulent. The word "turbulent" describes a motion in which an irregular velocity fluctuation (mixing or eddying motion) is superimposed on the main stream motion. The essential characteristic of turbulent flow is that the turbulent fluctuations are random in nature.

If Reynold's rule of averaging is used, the Navier-Stokes equations for laminar flow may be transformed into the Reynold's equations, which hold true for turbulent mean motion. The solution of Reynold's equations will properly describe turbulent flow. Unfortunately, the number of unknowns exceeds the number of equations; therefore the use of mathematical method to …

Streaming Current And Streaming Potential Induced By Water Flow Through Porous Media, Mohamed M. I. Abaza

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study was conducted to investigate analytically and experimentally the relationship between the rate of flow of water through porous material and the streaming current and streaming potential induced by this flow. The effect of dissolved salts in the permeating solution and the size of the soil particles was also investigated.

Results and conclusions of this study are summarized as follows:

1. A modified procedure using the appropriate delay to insure stead state conditions was used for the measurements of both streaming current and streaming potential.
2. The flow-pressure relationship was the same irrespective of the counter electro-osmosis (resulting from the streaming …

A Systematic Evaluation Of Alternate Chemical Routes, Arthur H. Bobis

Dissertations

A systematic method for selecting from among alternative routes for chemical synthesis is developed and presented. Consideration is given not only to making the best decision, but of reaching that decision with a minimum of experiments.

A method is developed whereby the calculated differences in process cost due to variations in the levels of such responses as chemical yield, usage and recovery are displayed graphically. Such a representation by indicating the potential worth of any experiment focuses attention on those parts of the synthesis which have an economic bearing on the ultimate process cost.

The probability of achieving a particular …

Proposed Remedial Design For Unstable Highway Embankment Foundation: I-64-6(6) 117, Bath County, Gordon D. Scott, Robert C. Deen

Kentucky Transportation Center Research Report

Early in 1966, during the construction of a large embankment between Stations 1738+00 and 1745+00 on I 64 in Bath County (I 64-6(6)117, SP 6-404-5G1), a serious slide occurred involving large quantities of the embankment material. After a visit to the site and a review of the subsurface information available, it was assessed that the slide occurred as a result of a bearing-capacity failure of the foundation material.

Kentucky Rock Asphalt Bases And Hot-Mix Surfaces; Experimental Construction, Robert L. Florence

Kentucky Transportation Center Research Report

The objectives of this study are disposed toward the development of Kentucky Rock Asphalt for use as a traffic-bound base and surface on rural roads near its source and toward re-development of the material for use as hot-mixed, hot-laid, skid-resistant surface course for higher echelon roads. The material is a natural asphaltic-sandstone which occurs in considerable abundance in Edmonson County and in other outcrops of Pottsville sandstones bordering the eastern rim of the Western Kentucky Coal Fields. From 1900 until the 1950's, rock-asphalt was used extensively in Kentucky and elsewhere for road surfacing and was regarded widely as a premium-grade …

The Effect Of Potential Representation On The Electron Scattering At Low Energies., Ahmed K. Aboul-Seoud

Electrical and Computer Engineering ETDs

One of the most useful approaches for gaining understanding of atomic structure is that of experiments involving electron scattering from atoms. In particular, knowledgle of differential and total elastic scattering cross sections enables one to calculate momentum transfer cross sections, mean free path, and the width of multiple scattering distributions. From the point of view of a theorist, the central question is that of the interaction potential. A representation of this latter quantity will give rise, mathematically, to a two point boundary value problem involving the Schrödinger equation. Upon solving the Schrodinger equation, and satisfying the appropriate boundary con­ditions, the …

Conversion Of Parahydrogen To Orthohydrogen, George A. Winkler

Chemical and Biological Engineering ETDs

Heisenberg (53) and Hund (57) postulated the existence of two modifications of hydrogen. This occurred as a result of Heisenberg's previous explanation of the existence for orthohelium and parahelium using quantum theory. From analogous considerations, he and Hund asserted that hydrogen was a mixture of two gases. Dennison (28) applied their theories to explain the falling off of the rotational specific heat of hydrogen. This had been observed by Eucken (34) in 1912. In 1928, Giaque and Johnston (45) held gaseous hydrogen at 85°K for six months. On liquefaction they found a detectable difference in vapor pressure. They stated that …

Electronic Computer Program For The Solution Of Slope Stability By The Wedge Method Of Analysis., James O. Boardman

Civil Engineering ETDs

Earth embankments and the foundation upon which they rest are subject to abear stresses induced by their own weight. It the embankment serves as a water retention structure, additional shear stresses are developed by seepage forces originating from pore pressure, from the reservoir pool and from rainfall. In certain regions, earthquake forces must also be added to these gravity and water forces.

Prior to the turn or the century and tor thirty some years after, earth dam side slopes were selected on the basis of past experience in lieu of a theoretical analysis. Justin, a noted authority on earth dam …

Stage-Fall-Discharge Relations For Flood Flows Over Highway Embankments, Gaylord V. Skogerboe, M. Leon Hyatt, Lloyd H. Austin

Reports

At Utah State University, considerable effort has been devoted to the analysis of submerged flow at open channel constrictions. A method of analyzing submerged flow was first developed for a trapezoidal flume by Hyatt (1965). Later studies verified the method of analysis for a rectangular flume (Skogerboe, Walker, and Robinson, 1965) and Parshall flumes (Skogerboe, Hyatt, England, and Johnson, 1965). Because of the previous findings, it was felt this method of analyzing submerged flow could be applied to highway embankments.

A highway embankment is a form of broad-crested weir when overtopped by flood waters. Being a weir, the flood discharge …

A General Survey Of Highway Construction Materials: Jackson Purchase Region, Robert C. Deen, James H. Havens

Kentucky Transportation Center Research Report

Much information and insight concerning the engineering behavior and characteristics of soils and geologic materials can be obtained by a review of geologic and soil reports available in the literature. This knowledge concerning the engineering behavior of these materials can be quite useful to the design and construction engineers as they proceed with their endeavors with respect to civil engineering structures such as highways. Much of this general and preliminary information is available to the public in the form of county soil survey reports that have been published by the U.S. Department of Agriculture and geologic quadrangle maps that have …

Vapor Liquid Equilibria Of The Isopropanol-Isopropylacetate-Water System, Amin Zavosh

Chemical and Biological Engineering ETDs

The separation of isopropylacetate from a ternary mixture of isopropanol, isopropylacetate and water by azeotropic distillation requires reliable and thermodynamically consistent vapor-liquid equilibrium data. By using a single experimental vapor-liquid equilibrium datum point for each of the related binaries of the above system, it is possible to determine the binary constants of some of the integrated forms of the Gibbs-Duhem equation such as the Van Laar or Margules equation. The binary constants can be used in the ternary forms of the above equations and in conjunction with the definition of activity coefficient to generate approximate vapor-liquid equilibrium data over the …

Modifications To Gate-Flume Structures On The Weber Davis Canal, Gaylord V. Skogerboe, M. Leon Hyatt

Reports

The turnout structures under study divert flows from the Weber-Davis Canal near Clearfield, Utah. A portion of the canal in this area was realigned as a result of the construction of the Interstate Highway System. The twin turnout structures, used to divert water to the West Branch Irrigation Company and West Layton Irrigation Company, were constructed in conjunction with the realignment of the concrete -lined canal.

A three-dimensional drawing of the twin turnout structures is shown in Fig. 1. Water is diverted from the canal by passing under the discharge diverted through each of the structures is approximately 35 cfs …

Consulting Engineering Contracting Policy And Procedures, Kentucky Highway Materials Research Laboratory

Kentucky Transportation Center Research Report

The Kentucky Department of Highways on March 2, 1965, as the result of a study made by Department personnel, set forth and adopted by issuance of official Order No. 73646, ''Consulting Engineering Contracting Procedures." Each of the forty-nine other state highway departments was requested to advise as to the policy and procedure for obtaining professional consulting engineering services and fees paid for the services.

An agreement was entered into with the Kentucky Research .Foundation for Dean R. E. Shaver, College of Engineering, University of Kentucky, and his associates, as he might delegate, to review the Kentucky Department. of Highways' "Consulting …

Impact Of I 75 On The Local Economy Between Walton And Georgetown, Robert C. Deen

Kentucky Transportation Center Research Report

In 1956 the National Interstate and Defense Highway System was approved by Congress. It was immediately apparent that the diversion of traffic to such a system could result in immediate and lasting significant changes in the traffic flow patterns on the older highways, and this probably would have an immediate effect upon the businesses located along these older highways. In the bill authorizing the Interstate Highway System provision was made for studies of the economic effects of the new system upon local economies. The study reported herein is a part of a long-range investigation of the various aspects of economic …

County Bridge Painting, D. G. Shurig

Indiana Local Technical Assistance Program (LTAP) Publications

This manual covers the planning, surface preparation, application, and paint materials for bridge painting.

Derivation Of Transfer Functions From Time Delay Specifications And Their Approximations., Nasir Ahmed

Electrical and Computer Engineering ETDs

The derivation of transfer functions from given time delay functions. In the sinusoidal steady state, a transfer function may be written as H(jw)= |H(jw)| e^jB(w)

Where B(w) is the phase angle. Then the corresponding time delay function Td is defined as Td = -dB/dw

Test 945: David Brown 770 Selectamatic (Diesel), Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT

GENERAL CONDITIONS

East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers.

PREPARATION FOR PERFORMANCE RUNS

The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Further Studies Of The Catalytic Oxidation Of Ortho-Xylene To Phthalic Anhydride Using A Fluidized Bed Reactor., Richard Shih-Chun Chu

Masters Theses

"This investigation was conducted to further study the vapor-phase oxidation or o-xylene to phthalic anhydride in a fluidized bed catalytic reactor. Parameters investigated during the study were temperature, catalyst volume, and catalyst activated by use or different promoters. Two different vanadium pentoxide catalysts were used. One was a new catalyst(Catalyst I) supported on a silica base and diluted with potassium sulfate. The other catalyst(Catalyst II) was similar to the first one except that it had been used in a commercial fixed bed reactor operated by the Monsanto Company, St. Louis, Missouri, using naphthalene as a reed material. It had been …

Nucleate-Boiling Heat Transfer To Water At Atmospheric Pressure, H. D. Chevali

Masters Theses

"The purpose of this investigation was to study the hysteresis effect, the effect of micro-roughness and orientation of the heat-transfer surface, and the effect of infra-red-radiation-treated heat-transfer surfaces on the nucleate-boiling curve.

It has been observed that there exists no hysteresis effect for water boiling from a cylindrical copper surface in the nucleate-boiling region over the range studied. The nucleate-boiling curve has been found to be independent of micro-roughness and orientation of the heat-transfer surface. There was no detectable change in the nucleate-boiling characteristics of the heat-transfer surface when the surface was treated with infra-red radiation"--Abstract, page ii.

Electrodialysis Of Tomato Juice, Raghunath R. Khetan

Masters Theses

"Thermal decarboxylation of carboxylic acids has been helpful in illustrating some fundamentals of reaction kinetics in solution. It has been important in formulation of the theory of unimolecular reactions. It is also used frequently in the synthetical methods of organic chemistry.

In a recent study of the anodic oxidation of malonic acid in sulfuric acid at 80⁰C using a platinum anode, the interpretation of some results was impossible due to the spontaneous decomposition of the malonic acid. As no information is available in the literature about decomposition rates of malonic acid in sulfuric acid at the concentrations used, it was …

Piggery Septic System, N E. Macintyre

Journal of the Department of Agriculture, Western Australia, Series 4

ONE of the problems of intensive houses for pigs is the disposal of the dung and urine.

If proper arrangements are not made to remove this, it soon accumulates in an offensive pile at one end of the piggery, making an excellent breeding ground for flies.

Manure Disposal From Piggeries, P Mcnamara

Journal of the Department of Agriculture, Western Australia, Series 4

Many new piggeries have been built during the past year as more farmers swing over to intensive housing.

In most cases the problem of effluent disposal has been overlooked. This article shows how some pig raisers are beating the problem.

Mastitis : Modified Teat Cups Give Better Back-Flushing, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

Back-flushing of the teat cups has not brought the expected reduction in the spread of mastitis in some dairy herds.

Replacement of the conventional nut-and-tail nipple with a special flushing nipple, or use of a one-piece teat cup liner, will ensure that flushing is efficient.

Individual Sow Feeders, P Mcnamara

Journal of the Department of Agriculture, Western Australia, Series 4

FOOD is the major cost in any pig enterprise and it is particularly easy for waste to occur in the breeding herd.

Individual feeders enable the pigman to feed each sow according to her need, and enable the sows to eat their feed slowly or quickly as they choose.