Digital Commons Network^™

The Separation Of Selected Radioactive Fission Products By Electrodialysis, Jerry David Vie

Masters Theses

"The recent advent of nuclear energy has opened an era of almost unlimited power and countless problems. A problem of extreme importance is the recovery of unburned nuclear fuel and the claiming of transmutation products, such as Pu²³⁹ and U²³³, from the irradiated fuel elements. The chemical processing must also separate the fission products from the fissionable material if the fuel is to be used again.

At present, the irradiated fuel elements are stored for 90 to 120 days to allow the intense short half-life activity to decay. After "cooling down", the nuclear fuels are separated from …

A Method Of Fuel Testing In A Cfr Engine, George R. Baumgartner

Masters Theses

"At the present time, only a very small fraction of motor fuels produced for domestic use in the United States contain any alcohol in their blends. Soma foreign markets, notably the Philippine Islands and South American Countries use high proportions of alcohol in their motor fuel blends. Special purpose fuels in the United States which have alcohol blended with other compounds, have been used for engines from which maximum horsepower output is imperative. An example of this type of motor fuel blend might be found in the competitive motor sports involving motorcycles, stock automotive equipment, and special racing equipment.

An …

Business-Sponsored Films For Physical Science, Bertha Elizabeth Slye

Masters Theses

For many years business-sponsored films have been used widely in instruction in the science classroom. Because of the potential of the films in helping teachers bridge the gap between the fundamental teaching of scientific principles, and the applications found in the actual experiences of the student's consumer world, requests for them have often exceeded the output of those that are educationally sound. In the last decade in particular, the development of atomic and space technology, as well as the growing interest in science, have made it necessary to teach science beyond the confines of information in the ordinary science textbook. …

The Fundamental Atomic Particles, Ransom Bloomer Beers

Masters Theses

No abstract provided.

A Proposed Outline For A Course In School Business Management, Donald L. Pyle

Masters Theses

No abstract provided.

A Survey Of Businessmen In Effingham, Illinois To Determine How Effectively The Business Curriculum At Effingham High School Is Meeting Employment Needs, Joseph F. Green

Masters Theses

No abstract provided.

Introducing Children To Literature, Donna Deming

Masters Theses

No abstract provided.

High School Journalism, Robert Ernest Stuckey

Masters Theses

No abstract provided.

A Thermodynamic Study Of The Germanium Sulphides, Satya Prakash Jain

Masters Theses

"The experimental determination of some of the thermodynamic properties of germanium sulphide phases was conducted by a hydrogen reduction technique. The equilibrium H₂S/H₂ ratios were determined as a function of temperature for the two phase equilibria GeS₂-GeS and GeS-Ge. A Tutwiler analysis technique was used to analyze the equilibrated gas mixture for hydrogen sulphide content.

A detailed description is given for the process and the apparatus used in performing the experiments for equilibration of H₂S/H₂ gas mixture. The methods used for the preparation of germanium sulphide phases are also discussed.

The investigation …

Coal Dust Explosions And Their Prevention, Surya Narayan Roychowdhury

Masters Theses

"The purpose of this study is to review the various causes of coal dust explosions and to summarize the preventive measures through which it may be possible to minimize the hazards of coal dust explosions. The properties of coal dust which have an important influence on its explosibility are: fineness, purity, percentage of volatile matter, dryness, age and degree of oxidation, lifting velocities and dispersability, and its static electrification.

Explosibility of coal dust has been studied in laboratories, in explosion galleries and in an experimental coal mine. The data and results obtained from the tests showed that finely pulverized coal …

A Thermodynamic Study Of Germanium Sulfides, Sham Lal Malhotra

Masters Theses

"The vapour pressure of germanium monosulfide (liquid) was determined by a boiling point method. An expression for the vapour pressure as a function of temperature was obtained and the heat of vapourization calculated. Using the heat of sublimation data obtained by other investigators, the heat of fusion was calculated.

The thermodynamic properties, change of standard free energy (Δ F°) heat content (Δ H°) and entropy (Δ S°); of germanium disulfide were determined by using an indirect method. The equilibrium H₂S/H₂O ratios are determined for the reaction:

GeS₂ (s) + 2H₂O(g) = GeO_{2 …}

Deflections Of Two-Way Slabs, Gerald C. Godzwon

Masters Theses

"A reinforced concrete member is by no means a truly elastic member, hence all ordinary deflection calculations relating to it, whichever method, are approximate. By the use of model study actual reinforced concrete slab models, of different end conditions, were built and tested for deflections under uniform loadings. Theoretical and actual deflection of reinforced concrete slabs are compared. The results of these tests indicate that the theoretical deflection equations may be 60 to 80 percent in error when applied to reinforced concrete slabs"--Abstract, page 2.

Heat Transfer Coefficients In Artificially Roughened Pipes, Mehmet Hayati Turan

Masters Theses

"The purpose of this investigation is to determine experimentally the effects of three different types of artificial roughness on the convective heat transfer coefficient in a pipe and compare these values with that for a smooth pipe for turbulent flow"--Introduction, page 7.

The Status Of Gas-Lubricated Bearings, Bhaskar Dattatraya Shiwalkar

Masters Theses

"The idea of gas-lubricated bearings was suggested as far back as 1854 by Hirn, but it is only very recently that they have aroused a great amount of interest. The interest is centered on the advantages of gas-bearings for the following major applications:

1. High temperature lubrication where ordinary liquid or grease lubrication fails.
2. Bearings operating in radio-active atmospheres where conventional lubrication may break down.
3. Applications sensitive to contamination where fouling from lubricating oil becomes serious.
4. Low-friction devices--an especially important advantage because of the trend to high speed machinery.
5. Applications where positional accuracies down to micro-inches are required.

As a result …

The Conducting Sheet Analogy For Laplace And Poisson Equations, Ronald Edward Volker

Masters Theses

"This investigation determined the accuracy to be expected with conducting sheet analogy solutions for Laplace and Poisson equations using simple and relatively inexpensive instrumentation. Several problems were solved experimentally and compared to known theoretical solutions to check variables in the technique and the accuracy of the experimental solution. It was found that if proper procedures are followed, solutions can be obtained rather rapidly and with an error of less than 5% which compares favorably with accuracy obtained by other investigators with more complex, precise equipment"--Abstract, page 2.

Imperfections In A Silicon Crystal Studied By The X-Ray And Density Method, Pierre Borgeaud

Masters Theses

"The study of imperfections in several crystals of silicon was conducted by the x-ray and density method"--Abstract, page 2.

The Determination Of The Heat Transfer Film Coefficients Of Internally Heated And Twisted Strips, Karpurapu Venkata Apparao

Masters Theses

"As the demand for power supply is increasing, the power from nuclear fission is assuming an important role in the field of power production. The enormous quantity of heat generated during the fission process can be utilized for the generation of power. To get maximum advantage out of the fission process, the fission material must be fabricated into a unit of proper shape to permit the control of the process and safe removal of heat generated. This unit, composed of fuel elements is known as the reactor core and is one of the major concerns in nuclear power development.

The …

An Experimental Study Of The Effects Of Additives On The Collapsibility Of Carbon Dioxode-Sodium Silicate Bonded Foundry Cores, Robert G. Liptai

Masters Theses

"Every foundry is searching for methods and tools to raise product quality and production while lowering cost. In early 1954 published articles on the new carbon dioxide-sodium silicate process of core hardening began to stir the imagination of most of the foundries throughout the United States, This process has probably claimed more space in the foundry journals than any other subject, hailed by some as a cure-all and dismissed by others as unsatisfactory.

The list of advantages of this process was impressive, but anyone associated with the process was confronted with daily problems that had to be solved regardless of …

Analysis And Simulation Of A Cross-Correlation Communication System, Dennis Jay Gooding

Masters Theses

"Statement of the problem. The purpose of this study was (1) to calculate the probability of error as a function of receiver input signal-to-noise ratio for a typical communication system employing cross-correlation detection; (2) to design and construct an experimental model of such a communication system for the purposes of demonstrating the operation of the system and verifying the theoretical calculations"--Introduction, page 1.

Electrical Model Investigations Using The Horizontal Profiling Technique, Alan H. Kwentus

Masters Theses

"Electrical exploration methods have been used for many years as a means of determining subsurface structures and in the search for mineral deposits. Vertical profiling techniques can be used to determine rather accurately the resistivity and thichness of horizontal or gently dipping beds for cases up to four layers. Mathematical calculations have been made for multiple layers and theoretical curves have been computed and published for four and more layers. The vertical profiling method is not particularly well suited to the problem of locating lateral changes in resistivity produced by such features as ore bodies, sinks and channels. These features …

The Separation And Microdetermination Of Cobalt In High Purity Nickel, John Richard Knapp Jr.

Masters Theses

"It has been found that many substances in an extremely pure form or containing certain trace impurities exhibit many unique physical and chemical properties. Investigators studying these properties have encountered many difficulties, especially in preparing the extremely pure substance and/or in accurately determining the quantity of impurities present. These problems arise chiefly from the very similar chemical properties of the constituents being separated and the possibility of contamination during the necessary processing of the substance for purification or analysis.

Trace analysis, therefore, has become very important in recent years. Where previously analyses based upon parts per hundred were adequate, now …

Properties Of Air-Entrained Concrete At Early Ages, Ugur Ozoguz

Masters Theses

"This study, entitled "Properties of Air-Entrained Concrete at Early Ages" concerns a group of tests designed to provide quantitative information regarding the effect of entrained air on the strength and durability of concrete before it reaches its 28 day strength.

Experiences in the field and laboratories have demonstrated that the addition of a moderate amount of air to any concrete mix will bring a marked increase in resistance to the disintegrating effects of freezing and thawing.

There have been extensive studies made on the subject of durability of air entrained concrete. Most of these studies were based on the effect …

Investigation Of Economic Design Procedure For A Rigid Frame, Richard S. Groner

Masters Theses

"This work presents an analysis of various arrangements of component parts of a rigid frame. From this analysis a procedure is indicated for a logical choice of member sizes for a first trial selection of a frame for given loading conditions. The first trial solution yields a frame which is in the range of an economical design"--Abstract, page 2.

The Relationship Between Verbal Facility And Delayed Speech Feedback, Charles Joseph Arens

Masters Theses

No abstract provided.

The Effect Of Recorded Lateral Lisping On Listener Comprehension, Leslie Gene Adkins

Masters Theses

The Problem

This experiment was designed to test the effect of misarticulation on listener comprehension. Of the many authorities who suggest that poor speaking reduces comprehension, Knower, Phillips, and Koeppel state: "Poor speaking seems to be the least effective method of presenting informative materials. There is a direct relationship between the quality of speaking performance and the amount of material recall." One of the important factors which contributes to effective speaking is correct articulation. According to Van Riper and Irwin: "If you misarticulate your speech sounds, it interferes with communication, and your speech is judged as abnormal." Articulation defects are …

The Correspondence Of Error Between The Voiced And Unvoiced Cognates “S” And “Z” In Children With Articulatory Disorders, Gerald F. Johnson

Masters Theses

Introduction

The problem as set forth in this thesis is to determine the correspondence of error between the voiced and unvoiced cognates "s" and "z" in children with articulatory disorders. It has been assumed that the correspondence of error type would be high due to the similarity of the sounds. Anderson, for example, says that "much of what is true with respect to "s" applies with equal force to its voiced analogue "z"." The problem of this research is to determine whether there is any correspondence between the respective errors on the sibilants "s" and "z" and if they correspond …

An Analysis Of The Articulation Errors In Spontaneous Speech Of One Hundred Children With Lisps, Paula C. Downs

Masters Theses

The Problem

This study is an attempt to determine the nature and relative frequency of the articulation errors shown by one hundred school children with lisps.

The Importance of Investigating the Phenomenon of Defective Articulation

The incidence of speech defects in the child population has been found to range from five percent (5%) to ten percent (10%) of the total child population. A child's speech is considered defective when the listener gives as much or more attention to the manner in which the child speaks as he does to the idea being communicated.

A Study Of The Genesis Of The Krueger Zinc Deposit And The Near-By Barite Deposits Of The Potosi Quadrangle, Washington County, Missouri, Attilio Ligasacchi

Masters Theses

This thesis deals with the study of the genesis of the Krueger zinc deposit and the near-by barite deposits of the Potosi quadrangle, Washington County, Missouri.

The rocks outcropping in the quadrangle embrace Pre-Cambrian and Lower Paleozoic formations, the Potosi and Eminence being the most important formations with regard to the studied deposits.

The few structures present in the area of the vertical type and are more abundant in the southern part of the quadrangle.

Special emphasis is placed on the relationships between the barite, the associated sulfides, and the host rock.

Geometric and geochemical criteria are studied in detail …

An Analysis Of Musical Form, Comparison Of Translations, And Interpretations Of The "Dichterliebe" By Robert Alexander Schumann, David Lynn Walter

Masters Theses

No abstract provided.

Lincoln's Search For A Winning General, John C. Gibson

Masters Theses

No abstract provided by author.