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Masters Theses

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Music For Thirteen Instruments And Percussion, Yong Jin Kim Jan 1969

Music For Thirteen Instruments And Percussion, Yong Jin Kim

Masters Theses

No abstract provided.

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Establishment Of A Torsion Pendulum And Its Evaluation, Ashwin Kantilal Ghatalia Jan 1969

Establishment Of A Torsion Pendulum And Its Evaluation, Ashwin Kantilal Ghatalia

Masters Theses

"A torsion pendulum apparatus has been constructed. The pendulum has been evaluated by studying the Zener relaxation in α brass. Three wire specimens of commercial alloy of Cu-Zn were used and the value of log decrement has been obtained by the method of free decay of the oscillations. The known Zener peak was observed"--Abstract, page ii.

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A Theoretical Analysis Of The Free Vibrations Of A Clamped Circular Plate With Damping, Bhalchandra Krishnaji Vaidya Jan 1969

A Theoretical Analysis Of The Free Vibrations Of A Clamped Circular Plate With Damping, Bhalchandra Krishnaji Vaidya

Masters Theses

"A theoretical analysis of the free vibrations of a clamped circular plate was undertaken. The effects of transverse shear were considered for application to relatively thick plates in which there exist sharp transients and frequencies corresponding to higher modes. The method adopted by R. D. Mindlin was used to develope [sic] the differential equation of motion for the plate. The damping effect due to the resistance of the medium in which the plate vibrates was also considered. This damping was assumed to be due to the generation of pressure waves caused by the displacement of the plate...Since the solution requires …

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A Digital Technique For Combining Frequency Standards, Lynn James Hawkey Jan 1969

A Digital Technique For Combining Frequency Standards, Lynn James Hawkey

Masters Theses

"A new technique for combining multiple frequency standards into a single timing reference based on the average of the frequency of each input is described. The uniqueness of this approach is that it is an all-digital scheme utilizing delay lines and high-speed logic elements currently available. The present and future applications of combiners are discussed, the requirements are highlighted, several digital solutions are briefly described, and the detailed block diagrams and characteristics of a particular general purpose combiner are presented. It is suggested that the optimum combiner include a stable quartz crystal oscillator with a frequency control feature. The output …

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An Investigation Of The Application Of Photoelastic Coatings To Soil Studies, James Kenneth Meisenheimer Jan 1969

An Investigation Of The Application Of Photoelastic Coatings To Soil Studies, James Kenneth Meisenheimer

Masters Theses

"The purpose of this investigation was to determine if photoelastic coatings could be adapted to soil systems and used as a workable tool for analyzing deformation and stress distribution. The required physical properties of a photoelastic coating on soil is discussed and a number of photoelastic materials are investigated as possible soil coatings. Mixing procedures, coating application techniques, curing methods, testing procedures, and results are discussed for gelatin and several plastics. Compacted soil samples and extruded soil samples from a Vac-Aire extrusion device were coated with reflective and photoelastic coatings and then loaded in an unconfined compression machine. The stress …

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Stochastic Simulations Analysis And Determination Of Iteration Requirements, James Walter Smith Jan 1969

Stochastic Simulations Analysis And Determination Of Iteration Requirements, James Walter Smith

Masters Theses

"A thorough analysis of computerized stochastic simulation problems has been undertaken to determine the number of iterations (or random draws) necessary to achieve a required degree of output accuracy. The basic problem is to determine when the sampled output mean and standard deviation are within specified accuracy limits. An error analysis is made of the statistical properties of deterministic-probablistic [sic] and logic (random walk) type problems. A recommendation for determining the number of problem iterations required is then presented"--Abstract, page ii.

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Dynamic Response Of A Gyrocompass, Subhash Govind Kelkar Jan 1969

Dynamic Response Of A Gyrocompass, Subhash Govind Kelkar

Masters Theses

"A gyrocompass with three degrees of freedom is studied and an attempt made to solve the exact equations of motion numerically. The equations are obtained by using the Lagrange formulation of the problem. The kinetic energy and the potential energy of the system are determined from the energies of the various components. These are then substituted into Lagrange's equation to obtain the three equations of motion for the three angular coordinates. As few restrictive assumptions as possible are made during this development. From these exact equations of motion an approximate analytical solution is obtained by making several assumptions and then …

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Isotopic Anomalies Of Noble Gases In Natural Gas, Garry A. Bennett Jan 1969

Isotopic Anomalies Of Noble Gases In Natural Gas, Garry A. Bennett

Masters Theses

"This investigation of the abundance and isotopic composition of noble gases in helium-rich gas wells was undertaken in order to obtain new data which might be used to elucidate the origin of isotopic anomalies of noble gases in the atmosphere. Since noble gases are presently leaking to the atmosphere (Damon and Kulp, 1958a; Bieri et al., 1967-) the isotopic composition of the present atmosphere is not static. The direction of change, and ultimately the origin of anomalous noble gases, might therefore be discovered in studying the noble gases presently leaking from the earth. Since the two major noble gas isotopes …

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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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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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Scraped-Surface Heat Exchange, Kyung Jun Park Jan 1969

Scraped-Surface Heat Exchange, Kyung Jun Park

Masters Theses

"An experimental study was made to test a theory developed for scraped-surface heat exchange. The apparatus was a cylindrical vessel equipped with two blades and baffles, cooled in an ice bath. The experiments showed the approach of dimensionless temperature deviated greatly from the theoretical prediction. It was found that part of this effect was the result of a change in temperature of the scraped wall, which could be accounted for by using the overall heat transfer coefficient between the cooling medium and the apparatus. Measurements on water showed the cooling rate to be much faster than the theory would predict. …

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Some Effects Of Lead-Zinc Mining Wastewater On A Stream Environment, Anthony Ralph De Alonso Handler Jan 1969

Some Effects Of Lead-Zinc Mining Wastewater On A Stream Environment, Anthony Ralph De Alonso Handler

Masters Theses

"The continuous discharge of lead-zinc mine and mill wastewater into some streams in southeastern Missouri may alter the ecology of those streams. A field and laboratory study was conducted to evaluate the potential pollution problem. Bee Fork Creek, the first stream in that area to receive tailings from mining operations, was selected for this study and periodically surveyed. Laboratory tests included static bioassays of lead, zinc, and copper, and the mode of action of the metals was investigated through post-mortem examination of the experimental fish. The test animals used in the bioassays were bluegill sunfish (Lepomis macrochirus, Rafinesque). The heavy …

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The Electrodeposition Of Zinc; Changes In Current Efficiency And Surface Structure Resulting From Various Addition Agents, Haruhisa Fukubayashi Jan 1969

The Electrodeposition Of Zinc; Changes In Current Efficiency And Surface Structure Resulting From Various Addition Agents, Haruhisa Fukubayashi

Masters Theses

"An examination of the surface structure of zinc electrodeposited from an acid-sulfate solution was made by scanning electron microscopy techniques. The current efficiencies were also determined, to a lesser extent, in order to correlate the results with the surface structures. Commercial and pure zinc oxide were used to prepare the neutral zinc sulfate solutions. The starting solutions were in a range of acid and zinc concentrations commonly used in commercial practice. Changes in morphology resulting from addition agents such as animal glue, gum arabic, and sodium silicate are compared"--Abstract, page ii.

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The Design Of Three-Port Strip Line Circulator, Jeng Seng Chang Jan 1969

The Design Of Three-Port Strip Line Circulator, Jeng Seng Chang

Masters Theses

"This dissertation is concerned with the analysis and design of the radius of ferrite disk of strip line circulator using a generalized analytical field expression. The first part consists of an analysis of the field in the ferrite disk with the TEM wave incident normally on the air-ferrite boundary. It is approximated by taking the boundary condition at the incident and outlet points, so that analytical expressions for the electric and magnetic fields can be obtained. The next part consists of an approximate method to determine the radius of the ferrite disk based on the result obtained in the first …

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Design Of R-C-C-R Spatial Mechanism, Kao-Chien Hsei Jan 1969

Design Of R-C-C-R Spatial Mechanism, Kao-Chien Hsei

Masters Theses

"An analysis to design a particular R-C-C-R spatial mechanism was developed using tensor notations and operations. This specific R-C-C-R spatial mechanism can be used to couple two shafts intersected at a skew angle with constant rotating speed ratio. This skew angle, or bending angle of the two shaft, may vary from 30 up to 180 degrees. The governing equations of relative positions of the mechanism were formulated as a function of two variables: the bending angle of the shafts and the rotating angle of the input link. To exemplify the various design conditions, the design parameter versus the bending angle …

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The Effect Of Thermal-Mechanical Processing Of The Exfoliation Corrosion Resistance Of An Aluminum-Zinc-Magnesium-Copper Alloy, James Lawrence Spehr Jan 1969

The Effect Of Thermal-Mechanical Processing Of The Exfoliation Corrosion Resistance Of An Aluminum-Zinc-Magnesium-Copper Alloy, James Lawrence Spehr

Masters Theses

"The objective of this investigation was to evaluate the effect of thermal-mechanical processing on the exfoliation corrosion resistance of an aluminum-zinc-magnesium-copper alloy. the aluminum alloy used was commercially available 7178 alloy in two thicknesses, 0.390 inch thick and 0.250 inch thick. this material was reduced 10, 25 and 40% in thickness in both the annealed and solution heat treated conditions. The material was then aged to a high strength condition, T6, or T8, in the case of the material reduced in the solution heat treated condition. The effect of the thermal-mechanical processing on the exfoliation corrosion resistance was then evaluated …

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Computer-Aided Design Of Lossless Non-Uniform Transmission Lines, Larry Lee Wesner Jan 1969

Computer-Aided Design Of Lossless Non-Uniform Transmission Lines, Larry Lee Wesner

Masters Theses

"A numerical iterative design technique is presented for the synthesis of lossless non-uniform transmission lines. A variational approach is used to minimize an error functional to which the system and boundary equality constraints have been adjoined by Lagrangian multipliers. The resultant network optimization conditions lead to an iterative scheme requiring analysis of the non-uniform line, analysis of an adjoint system and calculation of the error gradient in parameter space. A steepest descent procedure is used to optimize parameter values. Finite difference equations are used to provide an approximation model for implementation on the digital computer. A design example and a …

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The Anodic Dissolution Of Molybdenum In Acid Sulfate Solutions, Ching-Kuo Chen Jan 1969

The Anodic Dissolution Of Molybdenum In Acid Sulfate Solutions, Ching-Kuo Chen

Masters Theses

"The world's resources of metals are decreasing. Due to this and the cost of replacing corroded materials, it has come to be realized that prevention is better than cure. The increasing demand for molybdenum and molybdenum alloys has stimulated a great amount of research into the corrosion characteristics of these materials. The result of such research has assisted in the development of suitable molybdenum alloys and protective coatings to retard corrosion. When a molybdenum anode and a suitable cathode are immersed in an oxygen-free electrolyte and are connected to a direct current power source, molybdenum is dissolved. This process is …

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A Study Of The Evaporation Rates Of Small Freely Falling Water Droplets, Hugh Alan Duguid Jan 1969

A Study Of The Evaporation Rates Of Small Freely Falling Water Droplets, Hugh Alan Duguid

Masters Theses

"The evaporation rates of small (radium 3-9µ), freely falling water droplets were determined. the droplets, produced in a diffusion cloud chamber, were allowed to fall through air of known relative humidity (95-100%) and at three ambient temperatures (25C, 30C, and 35C) in a vertical drift tube. the rates of evaporation were ascertained by recording the drop positions on film at fixed time intervals. The results are compared with several existing theories, and are found to lie between the formulation of Kinzer and Gunn, and the quasistationary theory based on Maxwell's equation"--Abstract, page ii.

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Thermochemical Investigations Of The Methanol-Isopropanol System, Elmer Lee Taylor Jan 1969

Thermochemical Investigations Of The Methanol-Isopropanol System, Elmer Lee Taylor

Masters Theses

"Heats of solution and partial molar excess volumes at infinite dilution were determined for n-butanol, acetone, chloroform, and water in pure methanol, pure isopropanol, and several mixtures of the two at 25.0⁰C. The partial molar excess enthalpies of methanol and isopropanol were also determined and were combined to obtain integral heats of mixing. All heat data were obtained using a calorimeter of the heat-leak design, containing approximately 300 ml of solvent. Sample sizes ranged for 0.1 to 8 ml. Individual heat measurements were reproducible to 0.05 calories and reported values are considered to be accurate to 1% + 0.5 calorie …

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Some Aspects Of Aerated Open-Channel Flow At Shallow Depths And Low Velocities, D. L. Fread Jan 1969

Some Aspects Of Aerated Open-Channel Flow At Shallow Depths And Low Velocities, D. L. Fread

Masters Theses

"This study is concerned with the effect of entrained air bubbles on the open-channel hydraulics of water flowing at low velocities. The air bubbles are introduced into the flowing water by injecting diffused compressed air along the channel bottom. The variations of the velocity profile and velocity distribution energy coefficient of aerated and nonaerated flow are discussed. Empirical equations have been determined for the air concentration and increased depth of flow or "bulking" of the aerated open-channel flow. The investigation revealed a significant increase in the Manning roughness coefficient and the related Darcy friction factor for aerated flow relative to …

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System Definition Of A Small, Economical General Purpose Computer, Thomas Elden Kreger Jan 1969

System Definition Of A Small, Economical General Purpose Computer, Thomas Elden Kreger

Masters Theses

"The major differences between commercially available electronic calculators and the small, general purpose computer are discussed. A computer system organization is proposed with low cost, physical compactness and user convenience as design objectives. In addition, a system block diagram and a set of micro-instructions are postulated. These micro-instructions are micro-programmed to provide floating point arithmetic capability and a library of function generating sub-routines"--Abstract, page ii.

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Investigation Of Target Detection In Noncoherent Systems With Colored Noise, Edward Windsor Bailey Jan 1969

Investigation Of Target Detection In Noncoherent Systems With Colored Noise, Edward Windsor Bailey

Masters Theses

"Design efforts concerning the problem of detecting moving ground targets from an airborne platform with a noncoherent radar have been concentrated in the area of video filter design. The filter formulation generally follows an empirical path with no generally acceptable criterion for an optimum processor. This Thesis considers several problem formulations which are based on a Neyman-Pearson detection criteria. A square-law second detector is assumed and the resulting likelihood ratio shown to be too complex for closed form solution. The problem is reformulated in terms of sequences using complex random variable representations and the likelihood ratio is investigated. A test …

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Sorption And Desorption Of Chlorinated Hydrocarbon Pesticides By Clay Minerals, Cheng Sun Liao Jan 1969

Sorption And Desorption Of Chlorinated Hydrocarbon Pesticides By Clay Minerals, Cheng Sun Liao

Masters Theses

"This thesis describes the sorption and desorption of chlorinated hydrocarbon pesticides by clay minerals under laboratory controlled environmental systems. Particular emphasis was directed toward the investigation of the fundamental adsorption phenomena which occurred in selected pesticide-clay systems. the effects of certain environmental stresses, including pH, temperature and salt (NaCl) concentration of water, on the behavior of sorption and desorption were also studied. Pesticides selected for this study included DDT, dieldrin and heptachlor, and clay minerals employed were kaolinite, montmorillonite and illite. The adsorption rate and equilibrium were evaluated by batch techniques employing completely mixed systems while the effects of the …

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Failure Analysis Of Binary Address Decoders, Kanaiyalal Jekisondas Gandhi Jan 1969

Failure Analysis Of Binary Address Decoders, Kanaiyalal Jekisondas Gandhi

Masters Theses

"This paper describes the organization and failure analysis of various types of binary address decoders. Logical type faults are considered and all possible faulty output patterns, resulting from these faults, are derived. A basic theory is developed, showing that these failure patterns are independent of the decoder size and organization. Digital simulation programs were used as an aid in the development of this theory. Results of the simulation are provided in the appendix"--Abstract, page ii.

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Laboratory Measurement Of Pore Water Pressure Induced By A Model Friction Pile, Charles Alfred Miller Jan 1969

Laboratory Measurement Of Pore Water Pressure Induced By A Model Friction Pile, Charles Alfred Miller

Masters Theses

"This research program has been undertaken to develop a laboratory testing procedure for the measurement of pore water pressure induced by the static loading of a model friction pile. Most of the investigation involved the design, construction, and testing of equipment to be used during the tests which would produce satisfactory and reliable results. It was also desired to simulate field conditions during the tests. A series of tests were performed varying the consolidation pressure on the soil around the model pile. The effects of changing the location of the pore pressure measurements was also investigated. Results of the tests …

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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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The Analysis Of R-S-S-R Spatial Four-Bar Mechanism, David Perng Chyi Jan 1969

The Analysis Of R-S-S-R Spatial Four-Bar Mechanism, David Perng Chyi

Masters Theses

"Although many methods are known for the kinematic analysis of spatial mechanisms, such as descriptive geometry, vector analysis, dual number theory, matrices, screw calculus, and various other methods, a better way to analyze the specific R-S-S-R four-bar mechanism is to use tensor methods in order to eliminate the apparently formidable and tedious tasks of mathematically formulating problems and obtaining solutions. The analysis described in this paper is developed basically by using tensor notations and operations, and the calculations take advantage of the capabilities of modern digital computers. A FORTRAN program for the IBM 360 Data Processing System which will analyze …

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Two Studies Of William Golding's Lord Of The Flies, Duane M. Lawson Jan 1969

Two Studies Of William Golding's Lord Of The Flies, Duane M. Lawson

Masters Theses

No abstract provided.

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American Governmental Response To The 1956 Hungarian Revolution, Martin Ivan Elzy Jan 1969

American Governmental Response To The 1956 Hungarian Revolution, Martin Ivan Elzy

Masters Theses

No abstract provided.

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