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Potassium T-Butoxide-Initiated Elimination On Substrate 1,1,2-Trimethoxyethane, James Waldron

Theses

1-bromo-2,2-dimethoxyethane (I) was prepared in 68% yield from the addition of bromine to a solution of vinyl acetate and methanol. A Williamson ether synthesis, using sodium methoxide in methanol and I, gave 1,1,2-trimethoxyethane (II) in 48% yield. The compound (II) was the desired substrate for elimination reactions because it contains poor leaving alkoxide groups.

Many different reactions were investigated to convert II into 1,2-dimethoxyethylene. Among these were pyrolysis, acid catalyzed eliminations, and base initiated elimination reactions.

Best results were obtained using a bomb reactor, compound II as substrate, and potassium t-butoxide as the base. From this reaction, tertiary-butyl methyl ether, …

Case History Of A Test Pile Program For The Redevelopment Of Newark Airport, Patrick De Michele

Theses

A pile load test program was conducted at Newark Airport to determine the most economical piles to be utilized to support the structure in the Redevelopment of Newark Airport. The controlling criteria were the pre-determined design capacity of 50 to 100 tons for the piles and conformance to the Newark Building Code regarding the maximum allowable loads on the Airport's bearing strata and the allowable settlements for test loaded piles. Thirty-four piles, ten timber, four steel H-piles, four pre-stressed concrete, seven cobi shell and nine steel pipe piles, were driven to determine driving characteristics of the piles and the reaction …

Ball Milling Of Non-Newtonian Dispersions, Barry S. Miller

Theses

This investigation attempts to obtain a better understanding of flow behavior of a pigmented dispersion in a ball mill.

A power-law fluid model was used to approximate the rheological behavior of the milled fluid. To correlate power data on each of 276 milled dispersions, this model was used together with power number, Reynolds number, Froude number; and some geometrical variables.

Laboratory size stainless steel jars containing stainless steel balls from 1/8 to 3/4 inches in diameter were used to Mill a pigment/binder/solvent system at various speeds for different periods of time.

A correlation of power number as a function of …

The Frequency Response Analysis Of A Reboiler-Condenser Under Condensate Control, Douglas F. Ready

Theses

In this investigation, the dynamics of a reboiler-condenser pair, with the reboiler operating under condensate control, were analyzed both theoretically and experimentally, and the results of the two analyses compared.

The theoretical analysis was performed using the standard method of Laplace transform transfer function synthesis.

The experimental study consisted of a frequency response analysis of the system response to sinusoidal variations of the steam condensate rejection rate.

Two mathematical models were developed, one quite rigorous but extremely cumbersome, the other neglecting all but the most important factors for the sake of simplicity.

The experimental data (in the form of Bode …

The Effects Of Additive And Surface-Active Agents On Interphase Mass Transfer In A Solid-Liquid System, Gim Tan

Chemical and Biological Engineering ETDs

Study of the effects of contaminants on interface mass transfer in fluid-fluid systems has been the object of many recent theoretical and experimental investigations. The investigators’ common hope of finding a unified theory to explain the action of surfactants has not been accomplished. Instead, many different and conflicting theories have been advanced to explain the experimental results. The present investigation was undertaken to study the effects of contaminants on liquid phase mass transfer in a solid-liquid system. The theoretical and experimental model chosen for the present case was that of a flat disk rotating in a quiescent fluid. The rotating-disk …

Test 961: Oliver 1750, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 962: Oliver 1750 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Recovery Of Copper By Liquid Ion-Exchange, Bipinchandra V. Vora

Chemical and Biological Engineering ETDs

In 1955 the United States Atomic Energy Commission declassified certain information regarding solvent extraction (1). Since then the liquid ion-exchange process, sometimes known as liquid-liquid extraction, has become significant method tor the recovery of pure metals from low grade ores. This process has achieved its greatest success in the uranium industry (2).

Test 960: Zetor 5511 Zetormatic (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 …

An Analysis Of Transmitted Signal Distortion Resulting From Antenna To Reflecting Surface Velocity., J. Philip Castillo

Electrical and Computer Engineering ETDs

This paper presents a stud of the distortion of a transmitted signal due to Doppler frequency spreading and amplitude modulation as a consequence of the relative velocity between the transmitter and a reflecting surface.

The Doppler effect is a well-known phenomenon associated with the apparent compression, or length of the transmitted signal wave-length, resulting from a positive or negative relative velocity between a transmitter and receiver. In this thesis one of the problems will be the determination of the degree of frequency spreading due to a finite antenna beam width as the transmitter approaches a reflecting surface at a constant …

Epr Spectra Of Divalent Manganese In Halide Crystals, Veron Sarkis Sarkissian

Archived Theses and Dissertations

No abstract provided.

Flow Behavior Of Asphalt Cements, W. A. Mossbarger Jr., John A. Deacon

Kentucky Transportation Center Research Report

The Kentucky Department of Highways in cooperation with the Bureau of Public Roads is conducting a continuing investigation of the fundamental mechanical properties of flexible pavement materials. The ultimate objective of this investigation is to gain sufficient knowledge of the fundamental mechanical behavior of these materials to support the establishment of a responsive flexible pavement design procedure.

A preliminary report, issued in 1964, contained the results of the preparatory phase of this investigation. This report summarized from a theoretical point of view efforts that had been made to quantify the mechanical response of viscoelastic materials to known conditions of loading. …

Application Of Multivariate Analysis In Predicting Water Yields In Utah, Leei-Luoh Wang

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

The basic hydrologic data required to determine the water yield are usually unavailable for small basins and streams while increasing emphasis is being placed on their development. Therefore, some methods and techniques for estimating the amount of water available for development of these small units is needed .

The purpose of this study is to use the concepts and techniques of statistical analysis to develop equations which are useful in estimating the water yield of watersheds for which no stream flow records are available . The approach is an extension of earlier studies at Utah State University (1, lQ) in …

Development Of A Drainage Function For The Transient Case, And A Two-Dimensional Ground-Water Mound Study To Evaluate Aquifer Parameters, Seid Abdollah Jenab

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A drainage function, D (u_n), is developed to describe the rate of fall and the shape of the water table between drains for an infinite series of parallel drains. The drainage function is evaluated and presented graphically for design purposes. The solution of the drainage function is compared with the solution of Glover's transient state drainage equation. The two equations agreed very well, but the agreement was not as good for very high values of √(4αt)/ L.

The drainage function, D (u_n ), was solved for the point midway between drains and the solution was presented graphically …

Automated Circulation Control For The Utah State University Library, Richard M. Montgomery

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This package of programs is a result of the U.S.U. Library incorporating an automated control on the circulation of their books, which would provide the library with a daily record of all books in circulation, or not available for circu­lation, and send notices when books were overdue.

Because of the long-range program of the Data Processing Department of the University, it was decided to develop the software for this project rather than purchase the hardware.

The Propagation Of Elastic-Plastic Strain Waves Through The Joint Between A Solid Rod And A Cylindrical Shell., Richard Rhorer

Mechanical Engineering ETDs

When a solid body collides with another solid body a disturbance, called a strain or stress wave, propagates through both objects. These strain waves have been investigated both experimentally and theoretically. Some of this work is summarized by Kolsky (1) and Goldsmith (2).

A Study Of Aluminium-Lead Borate Glass Composite Materials, Aziza Nour El-Din Ragai

Archived Theses and Dissertations

No abstract provided.

Conductivity And Photoconductivity Of As-S-I Glasses, Ahmed Abdel-Hamid El-Difrawi

Archived Theses and Dissertations

No abstract provided.

Molecular Vibrations Of Tetrahedral Systems With Application To Fused Silica, Leila Sado Balloomal

Archived Theses and Dissertations

No abstract provided.

The Design Of A One-Man Terramechanism, Brent Charles Fryer

Theses and Dissertations

With the rebirth of special warfare in the last few years, the role of the individual soldier and of squad-sized units has been re-emphasized. Most guerilla-type fighting has been, is presently, and will most likely continue occurring in remote areas of the world. The terrain encountered may be tropical grasslands and canopy areas, or rugged mountains, inland waterways, swamps, mud flats and rice paddies. Other adverse terrain conditions are frequently encountered and must be crossed to accomplish the mission of the unit.

Correlation Of Weldment Hardness Profiles In Steels With Jominy End-Quench Data, Deepak Panjabi

Theses and Dissertations

Welding occupies an important place as a major metal fabricating process and steel is the backbone of many an industry. Therefore it is of paramount importance to know the effect of welding on steel.

The Development Of Turbulent Flow In The Inlet Region Of Smooth Pipe, Forrest C. Smith

Theses and Dissertations

Turbulent flows are encountered in nearly every case where fluid motion is involved. Turbulent flow in pipes is of great practical interest, and the problem of flow in the entry region is of special importance since the great majority of applications are in the realm of developing flow.

Simulation And Analysis Of Stream-Aquifer Systems, Morton W. Bittinger

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

As defined for this study, a stream-aquifer system is a hydrologic system in which there is an intimate hydraulic interrelationship between one or more aquifers and a perennial stream. The objectives of this study are to better understand the response behavior of typical stream-aquifer systems, to look at the response behavior as influenced by water management practices, and to consider the problems and possibilities of integrated management of groundwater and surface water supplies within stream-aquifer systems.

A brief history of water development practices and policy, particularly in the Western United States, indicates that the tendency over the years has been …

Evaporation And Evapotransipration In Venezuela, Hidalgo Guillén Echeverría

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Equations and tables for estimating Fuess evaporation from climatological data were developed. Ten years of average records from 22 stations in Venezuela were analyzed in order to develop the equations.

Mathematical regression analysis, and plotting and computer programs were used to work out the equations. The form of the final expression for estimating Fuess evaporation is as follows:
Ev = K C_RC_TC_WC_HC_DTC_SC_M
Pan evaporation was computed using the Christiansen, Mathison, Blaney-Criddle, Hargreaves, Penman, and Kohler formulas. The computed pan evaporation from these formulas, measured Fuess evaporation, and …

Test 959: Ford 2000 8-Speed (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 …

Test 958: Ford 2000 4-Speed (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 …

Vaporization Through Porous Membranes, Marshall E. Findley

Chemical and Biochemical Engineering Faculty Research & Creative Works

Mixtures may be evaporated from one interface of a Non wettable porous membrane with diffusion through the vapor-filled pores and condensation at the other interface of the membrane, by a sufficiently higher temperature on the mixture side maintained by a heat supply to the mixture and heat removal from the condensate equal to the latent heat transferred with vapor plus heat transferred by conduction. This permits essentially infinite-stage flash evaporation at constant liquid pressures, either with diffusion through Non condensable gases in the pores, or with vapor flow at a lower pressure than liquid pressures, but with liquids excluded from …

A Compressive Force Transducer For Use On Rocket Sleds., Robert Merrill Workhoven

Mechanical Engineering ETDs

In the field of research and development and the growing area of environmental testing a good method of measuring compressive forces, often under the most adverse field conditions, has been sought many times over. Several methods, both direct and indirect, have been used to attempt to define such compressive loads. Some are universally successful, but often a method has to be developed for each individual job.

A common problem among existing force transducers is their delicacy and mortality rate under field conditions. Some are complex and costly, and repeated replacement of damaged units is quite undesirable. Many transducers that are …

Energy Transfer And Electron Conduction In The Fluid Transpiration Arc Column, Pin-Seng Tschang

Dissertations

The energy relaxation and electrical conductivity of an electron gas in one atmosphere argon arc discharge has been examined theoretically and observed quantitatively in an experimental arrangement. The plasma column utilized for study is the type generated in a fluid transpiration arc equipment in which the argon working fluid is injected through a porous graphite anode. The rate of forced convection is such as to insure significant electron-heavy particle nonequilibrium in the sample volume of interest. A simple model of a developing arc column with internal heat generation indicates that, with typical rates of argon injection realized in practice, the …

Unit Weights Of Paving Materials, For Estimating Quantities, James H. Havens

Kentucky Transportation Center Research Report

Pursuant to our assignment, continuation issuing from the meeting of March 29, 1967, with Messers Brunnhoeffer, Mathis, et al, the Research Division staff performed specific-gravity tests on an ensemble of gravel samples furnished by Mr. Mays and made further evaluations of those and other data available -- that is, for the purpose of deriving the best or most judicious unit weights -- with a minimum of areal and mineralogical differentiation. Because of previously recognized variances in pavement densities, we elected to proceed on a theoretical basis. On the basis of assumed volume constants, it was possible to calculate theoretical unit …