Digital Commons Network^™

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 …

Physical Education Curriculum For Boys Senior High School, Edwards County Community Unit District #1, Albion, Illinois, David L. Hart

Masters Theses

No abstract provided by author.

A Study Of The Development Of The Tri-Cities, Pasco, Kennewick, And Richland, Washington, Delbert W. Meyer

Masters Theses

No abstract provided.

The Student With Hand Difficulties In Typewriting, Kenneth Arlen Tucker

Masters Theses

No abstract provided.

The History Of Basketball At The Eastern Illinois University, Virgil Morris Jacobs

Masters Theses

No abstract provided.

Graphical Solution Of Concentration At Production Wells Of Injected Radioactive Water Tracers, George E. Vaughn Jr.

Masters Theses

"With the advent of field research in which radioactive isotopes are used as tracers for water injected in secondary-recovery operations, knowledge of the probable transit time between wells of an injected tracer, its concentration at detection points, and the resultant optimum injection concentration has become important. Both detection and, consequently, injection concentrations of radioactive tracers are at least in part functions of the loss of tracer for various reasons, flow characteristics between wells, the rate of decay of radioactive emission, and the sensitivity of the detection apparatus. A method, based on the characteristics of a homogeneous 5-spot system, has been …

300-Kilocycle Ultrasonic Emulsification Of Paraffin Oil In Distilled Water, John Henry Rother

Masters Theses

"Emulsions have been in existence for thousands of years in the form of cosmetics, food, and medicines. Emulsions cover a vast number of products in both household and industrial use. Homogenized milk, butter, mayonnasise, salad dressing, and sauces are emulsions that are used every day at the dinner table. Medical salves, ointments, cosmetic creams and many other pharmaceuticals are used every day by members of both sexes in the human race. Waxes and polishes for automobiles, metal, floors, leathers, and furniture are emulsions. All of the new so called "wonder paints" and "rubber-base paints" are nothing more than an emulsion …

Chemical Kinetics Of The Zirconium-Hydrofluoride Reaction, Wayne G. Custead

Masters Theses

"It has been only in recent years that hafnium-free zirconium has been made available for commercial use. When economical methods were developed in 1950 to remove hafnium from zirconium, a metal was produced which not only exhibited good corrosion resistance and desirable physical properties, but which also had a very low absorption cross section for thermal neutrons. These factors have led to its most important application to date, that of a structural material for nuclear reactors.

The outstanding non-nuclear property of zirconium is its corrosion resistance to most mineral acids. Hafnium-free zirconium exhibits outstanding resistance to all mineral acids with …

Evaluation Of The Force Constants Of Non-Polar Gases From Viscosity Data, Charles Warren Keller

Masters Theses

"Studies of the intermolecular forces and potential energy functions have been largely of a theoretical nature. Various empirical statements representing these theories have been developed and tested. Of these, the Lennard-Jones (6-12) potential is one of the more realistic and has become the most favored when dealing with non-polar molecules.

The values of these “force constants” or the values of the Lennard-Jones (6-12) potential parameters, have been determined from both diffusion and viscosity data. Although these “force constants” can be determined from diffusional measurements as well as viscosity data, the literature is predominately filled with values of force constants which …

The Effect Of Rare Earth Additions On Low Alloy Steel, Sukh Dev Sehgal

Masters Theses

"Rare earth metals have for some years been used as an inoculant in nonferrous foundry practice and lately in the production of nodular iron. It has been reported that addition of rare earth metal to certain grades of stainless steel so improve the hot malleability that reduction of large size ingots in the blooming mill is now possible. It has been reported that considerable improvement in soundness and mechanical properties of steel castings and wrought products have been attained as a result of small additions of rare earth metals and oxides. In practically all investigations, it has been reported that …

Mechanization Of First Stage Graphitization In Fe- C-Si- Alloys, Dildar S. Gill

Masters Theses

"The purpose of this investigation was to study the mechanism of first stage graphitization in iron-carbon-silicon alloys in the light of results obtained by Taub, and to propose a new mechanism of graphitization. The results of preliminary experiments confirmed the findings of Taub as regards the precipitation of secondary carbides. Therefore, it was decided to extend the investigation so as to include the study of growth of secondary carbides. In order to know the chief factor responsible for the growth of secondary carbides, the activation energy was calculated. Another factor which was investigated was the site of graphite nuclei formation”--Purpose …

X-Ray Diffraction Study Of The Metal Powder Compacts, Rajendra Sharan

Masters Theses

"Various theories have been put forward about the mechanism of compacting and sintering processes. None of these theories are confirmed. The reason is that most of these theories are based on observations on metallographic specimens, which is not a particularly good tool for such a study. Little data using xray diffraction analysis is available and there seems to be a great need of making a thorough investigation in this direction.

The main object of this investigation is to study xray diffraction patterns of green compacts of aluminum, nickel and copper powders pressed under different compacting pressures to see if any …

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 …

Bonded Joint Strength Versus Loading Rate, Charless William Fowlkes

Masters Theses

"The purpose of this investigation was to determine the influence of the rate of loading variable on the apparent shear strengths of joints bonded with some of the currently available metal-to-metal adhesives. The effects of this variable are sometimes neglected by testing laboratories. The results of an experimental evaluation of the mechanical behavior of a group on modern metal-to-metal adhesives as a function of the rate of load application are used to more accurately establish the importance of rate of load considerations in adhesive joint testing. An attempt is made to explain observations of other investigators engaged in adhesive joint …

A Review Of Fossilization Processes In Different Sedimentary Environments (With Special Reference To The Time Factor Of Deposition Of Ore Minerals Associated With Fossil Material, In Particular The Coprolitic Phosphate Deposits), Giovanna Reggiori Ligasacchi

Masters Theses

"This thesis offers a cross/section through some principal fossilization processes involving organic matter (animals and plants) during and after sedimentation. The influence of different environments during fossilization is considered. The chemical composition of some classes of living invertebrates and plants is compared with the chemical composition of same organisms as found in consolidated sediments as fossils.

Some literature on carbonates, oxides, silicates, phosphates, and sulphides in fossils is reviewed with particular attention to those instances where the fossils are associated with ore minerals. Special consideration is given to the occurrence and composition of fecal matter in recent and consolidated sediments. …

A Cell-Center Distribution Function For Liquid Argon, Arthur M. Soellner

Masters Theses

"A theoretical expression for a cell-center distribution function was developed using a fundamental statistical mechanics approach. A free volume picture of the liquid was used with each atom located in a spherical cell formed by its nearest neighbors. Cell-center density distribution curves were obtained for liquid argon for temperatures of 84.4°K, 91.8°K, 126.7°K, 144.1°K, and 149.3°K and for argon gas at 149.3°K, and a comparison made with the experimental atomic distribution curves obtained by Eisenstein. For the first two temperatures a sharper, more definite structure was predicted by the cell model. For the remaining four temperatures, with the assumptions made, …

The Effects Of Fly-Ash On Dynamic Modulus Of Elasticity Of A Concrete Mortar, Bill L. Atchley

Masters Theses

"Over the last few years an increasing amount of interest has been shown in the use of prestressed concrete. As is true in many new methods of design or construction, the properties of existing materials to be used sometimes fail to meet all the desirable characteristics, and certain modifications might be advantageous. This is certainly true of prestressed concrete design and construction, in which a lower modulus of elasticity accompanied by a minimum loss in strength would be desirable. If a lower modulus of elasticity could be obtained for concrete, a lower prestressing load could be used and still maintain …

Stabilization Of Swelling Clay Soil By Additions Of Calcium Hydroxide And Calcium Oxide, Anthony Diler

Masters Theses

"As a study of all types of stabilization would be very lengthy, it was decided to make the object of this research the determination of the effect of the addition of different percentages of calcium oxide (CaO) and calcium hydroxide Ca(OH)₂ on the physical characteristics of a silty swelling sodium montmorillionite clay. The purpose of this addition is to flocculate the clay by utilizing a base exchange between the sodium and calcium ions, and thus change the physical characteristics of the soil. The soil by itself has the characteristics of a fat clay, that is it can be broken …

Methods And Time Study In Mining Operations, Cyril Jones

Masters Theses

"It was the purpose of this study to evolve and present in a logical manner a method of approach from the efficiency standpoint, to mining operation problems. This, it was thought, could be best achieved by means of a method and time study program, which could examine all the operations in whatever detail was required"--Statement of the problem, page 1.

A Study Of The Adsorption Of Radioactive Zirconium, Niobium, Cesium, And Barium On Alumina, Silica Gels And Clays, Dale Wesley Harris

Masters Theses

"The purpose of this investigation was: (1) search the literature and review various methods investigated for the safe storage of radioactive waste products, (2) study the possible methods for the recovery, of useful radioactive isotopes by selective adsorption, (3) perform laboratory tests to determine the capacity of various adsorbents for radioactive isotopes, (4) evaluate the data and correlate it with the findings reported in the literature, (5) make recommendations of the feasibility of using these adsorbents for removal or storage of the radioactive products, and (6) make recommendations for further investigations. The adsorption of radioactive zirconium, niobium, cesium and barium …

The Geology Of The Uranium-Vanadium Deposit Of The Diamond No. 2 Mine, Near Gallup, New Mexico, Raymundo J. Chico

Masters Theses

"This thesis deals with the geology of the Diamond No. 2 Mine east of Gallup, New Mexico. The sedimentary rocks ranging from Triassic to Cretaceous are described in relation to the local stratigraphic setting.

The Dakota formation is the host rock of the ore deposit, and was therefore studied in detail with regard to its petrographic nature and the sedimentary structures such as slumping. Special emphasis is placed on the study of the relationships between the uranium and vanadium deposit and the host rock. Geometrical and geochemical criteria are offered in order to explain the local genesis of the ore …

A Comparison Of The Effect Of Pvt Data Application Methods On Predicted Depletion Drive Reservoir Performance, Frederick A. Klein

Masters Theses

"It is generally agreed that the evolution of gas from oil within a reservoir is most closely approximated by the differential liberation process, while gas liberation in the flow string, surface separator, and stock tank is most nearly represented by flash liberation. To conform with this assumed physical behavior, appropriate application of both flash and differential liberation data in the computation of reservoir performance by material balance methods is indicated.

In this work, simple depletion-drive oil and gas recoveries were calculated (1) using differential liberation data only, and (2) using differential liberation data adjusted to incorporate the results of flash …

Geology Of The Northeast Portion Of Des Arc Quadrangle, Iron And Madison Counties, Missouri, Wesley Dean Weixelman

Masters Theses

"A geological investigation of the northeast portion of Des Arc Quadrangle in southeast Missouri was completed during the summer of 1958. Exposed Precambrian rocks include, from oldest to youngest, undifferentiated purple rhyolites with an interlayered tile-red rhyolite, andesine basalts with interlayered tuff, and an andesite. A diabase dike intrudes the lower purple rhyolites. The purple rhyolites account for about ninety-seven percent of the Precambrian exposures. Exposed Paleozoic rocks belong to the Bonneterre formation and include three members: (1) Lower Brown dolomite; (2) Light Gray dolomite with Tom Sauk limestone and arkosic sandstone and conglomerate facies; and (3) Upper Brown dolomite. …

Geology Of The Copper Deposits In The Eminence Region, Shannon County, Missouri, Lanny Lee Evans

Masters Theses

"Copper has been known to occur in Shannon County, Missouri since the early 1830's. A number of small deposits in an area around Eminence has been worked intermittently up to the present day. Little detailed geologic information is available on these deposits. The geology of the Eminence region consists of Precambrian rhyolite porphyry knobs projecting through dolomites and sandstones of Upper Cambrian and Ordovician age. A conglomerate of limited horizontal extent overlying the Precambrian is found at certain localities within the region. The only structures noted are the structural highs formed where the Paleozoic sediments lap upon the knobs. The …

Geology Of The Annapolis Area, Iron County, Missouri, Richard A. Zimmermann

Masters Theses

"The objectives of this investigation include the following: (1) to map the distribution of the igneous and sedimentary rocks, (2) to investigate the structure and lithology of these rocks and to determine their sequence, (3) to determine the stratigraphic position of the sedimentary rocks relative to known Missouri formations, (4) to determine the igneous rock types, and (5) to investigate the distribution and occurrences of economic minerals"--Purpose of Investigation, Page 6.

An Investigation Of The Status Of Stringed Instrument Instruction In The Smaller High Schools Of Illinois, Paula Absher Reid

Masters Theses

No abstract provided.

Choral Procedures: Their Relevance To A Studied Group, Donald M. Decker

Masters Theses

No abstract provided.

The Effects Of Ultrasonically-Induced Cavitation Upon Dissolved Oxygen, Free Carbon Dioxide, And Bicarbonate Ion Concentration In Water, Charles Alvin Wentz Jr.

Masters Theses

"Cavitation may be encountered in many scientific fields. Mechanical and civil engineers are concerned with the prevention of cavitation erosion in the design of turbines, propellers, underwater missiles, and similar structures. Biologists and physiologists are seeking more knowledge concerning the tensile strength of liquids, such as, tree sap and the formation of gas bubbles in the blood stream. Finally, the physicist and acoustical engineer must cope with the cavitation problem when working with underwater transducers, cavitation noise, and the propagation of acoustical signals through media in which cavitation is occurring.

There are many forces which hold a liquid together and …

Field Application Of The Membrane Filter Method For Bacteriological Quality Determination Of Water, Charles Liston Gambill

Masters Theses

"The purpose of this thesis is to demonstrate the definite advantages to be realized when using the membrane filter method as an accepted procedure for the bacteriological analysis of a water; and specifically when used under emergency or field conditions such as military units in the field. These same advantages would apply to Civil Defense and other such agencies when operating under emergency or field conditions.

Data from actual tests showing techniques, equipment and procedures used and augmented by other data available from research papers will be utilized"--Introduction, page 2.

Frequency Response Of Rotating Servo Components, Yehuda Rachovitsky

Masters Theses

"The frequency response approach to the design of automatic controls is the dominant one today. This approach in a strict sense may be said to have started with a paper in 1932 by Dr. H. Nyquist, a physicist at the Bell Telephone Laboratories. In this paper Dr. Nyquist was concerned with the stability of feedback amplifiers. This work can be said to have made possible the transcontinental telephone as well as modern radio and television. Dr. Hendrick Bode, mathematician at the Bell Laboratory, extended the results of Dr. Nyquist and obtained some simple design criteria that enabled even technicians without …