Digital Commons Network^™

Barometric And Pump Test Determination Of The Characteristics Of A Carbonate Aquifer In The Vicinity Of Norman Creek, Phelps County, Missouri., Somchai Wongsawat

Masters Theses

"Carbonate rock aquifers underlie many parts of Missouri. As population and water use increase, these aquifers will increase in importance as sources of water supply. The purpose of this study is to investigate the applicability of barometric calculations and a variety of pump test evaluation equations to a shallow confined doloii mite aquifer. The aquifer is the upper Gasconade Formation of Lower Ordovician age in the vicinity of Norman Creek, south central Phelps County, Missouri.

The response of water level to atmospheric pressure showed that the carbonate aquifer in this study site has a rather high barometric efficiency (B_{av …}

Liquid Metal Heat Transfer In Longitudinal Flow Along A Cylinder And Flat Plate., Marvin Eugene Lohmann

Masters Theses

"In this investigation an analytical study is performed to determine the effect of axial heat conduction on laminar forced convection for longitudinal flow of liquid metals along a horizontal cylinder and a flat plate. ii

The flow and thermal boundary layers for the problems under consideration do not admit similarity solutions, the non-similarity arising from the transverse curvature; ε = (4/R) (vx/u _∞) ^½ of the cylindrical surface and from co the effect of the axial heat conduction expressible as Ω = 1/Pe_x , where Pe_x is the local Peclet number. The governing conservation equations along with …

Models For Molecular Vibration, Allan Bruce Capps

Masters Theses

“The purpose of the investigation is to determine if a classical model can be used to characterize molecular vibrational and librational (restricted rotation) frequencies. In general, the model treats a molecule as asymmetrical and rigid and simulates the intermolecular forces by springs along the bonds. Molecules constrained to a plane and molecules free to move in three dimensions are analyzed. The frequencies of water molecules are investigated, in particular. The model and analytic components are found to function well. Within the limits set for the model, the water molecule simulation is not successful as the motion becomes anharmonic for energy …

Feasibility Study Of An Electromagnetic Trap Fusion Reactor., Dennis Gilbert Blondin

Masters Theses

"Through the use of detailed particle and energy balances, electromagnetic traps with magnetic cusps are found to be unsatisfactory for continuous operation when using only neutral particle beams to sustain a thermonuclear plasma. Low power multiplication characteristics inherent in this CTR design probably preclude supplemental plasma heating methods. However, by using an alternate Yin-Yang magnetic system, continuous CTR operating regimes are found at an ion temperature of 20 keV while assuming only neutral particle beam heating. Although these regimes require applied electrostatic potentials approaching a half-million volts, this device demonstrates a capability for efficient power production"-- Abstract, p. ii

Post Irradiation Changes Of The Elastic Modulus Of Aluminum, Dale A. Powers

Masters Theses

"Aluminum samples of 99.99% and 99.999% purity were irradiated to neutron fluences of 3·8·10¹⁸ nvt and 1.4·10¹⁹ nvt (E greater than 0.1 Mev) at one-third of the melting temperature. The change in Young's modulus of elasticity after isothermal annealing in the temperature range of 110⁰C to 130⁰C was measured. After 2.5 hours of annealing, the modulus reached a steady state value which was decreased by 0.25% ± 0.17% from the unannealed value. Electron microscopy suggests the hardening mechanisms were dispersion hardening by silicon precipitates and void hardening"--Abstract, page ii.

Two-Dimensional Radiant Interchange In A Non-Isothermal Cavity Formed By Two Semi-Infinite Parallel Plates., Robert David Allen

Masters Theses

"Two-dimensional radiant interchange between non-isothermal, gray diffuse surfaces with non-uniform radiosity have been investigated for a cavity formed by two semi-infinite parallel plates. The problem is solved for two specific emissive power distribution models. Both emissive power distributions decay exponentially with depth into the cavity. The first emissive power distribution varies in a cosine manner across the front of the plates and the second has a step variation across the front of the plates.

For the cosine varying model, separation of variables and Ambarzumian's method are applied to obtain an integro-differential equation for the radiosity inside the cavity, an integral …

A Study Of Digital Computer Control Of A Continuous Pulp Digester., Charles Edward Barker

Masters Theses

"Detailed analysis of six basic control loops for a Kamyr continuous digester is described using z- and s- transform methods. An example of a digital computer control system for a continuous digester is also presented"-- Abstract, p. ii

Characterization And Pollutional Contribution Of Stormwater Runoff From A Small Urban Area., John Lamb Wendleton

Masters Theses

"Stormwater runoff from urban areas has long been recognized as a pollutional source, however, only in the last decade has there been an extensive eff ort to measure its effect on receiving lakes and streams. Because runoff from small urban communities has received limited attention, this investigation was undertaken to determine the quality and pollutional contribution of stormwater runoff from a small urban area. The specific objectives of the study were: to characterize and correlate runoff quality with land use activity and to qualitatively and quantitatively measure the pollutants discharged with respect to time.

Runoff from 3 test watersheds in …

Application Of An Inverse Heat Conduction Technique To A Simulated Injection Mold., Noel Joy Rytter

Masters Theses

"An analytical model was constructed to investigate the heat transfer in an injection mold for which the temperature was controlled by a special mold heating-cooling process. Several techniques were used to test the validity and accuracy of the analytical model of the mold and to explain some singularities that occurred. It was determined that the thickness of the plastic part being molded is the primary factor affecting the minimum cycle time for the molding operation. Also, abrupt changes in temperature on the molding surfaces are very difficult to obtain because this requires drastic temperature changes for the working fluid that …

Effect Of Dissolved Water On Physical Properties Of Silver Borate Glasses, E Richard Reynolds

Masters Theses

"The effect of dissolved water on borate glasses containing 4-20 mol % Ag₂O was investigated. Water was dissolved in the glasses by bubbling with a carrier gas (oxygen) containing different partial pressures of water vapor. A minimum in water solubility was found at 11 mol % Ag₂O. Water contents in excess of 0.5 mol % H₂O did not have a great effect on the transition temperature or the dilatometric softening point. Below 15 mol % Ag₂O, the water content had no effect on the thermal expansion coefficients. Beyond 15 mol % Ag …

Investigation Of The Electric Field In The Vicinity Of A Water Drop Adhering To A Conductor, Jamnarn Hokierti

Masters Theses

"Electric field calculations in the vicinity of a conductor above ground are developed with constraints on the distance from the conductor for which the electric field equations can be applied for practical applications. The electric field in the vicinity of a small water drop adhering to the conductor has been calculated. Application of this electric field in the vicinity of the water drop has been used to compute the apparent surface charges and also the forces on the small water drop surface. Methods for the calculation of space charge due to ionization on the water drop has been suggested"--Abstract, page …

An Algorithm For Minimizing The Riding Time Of Students On School Buses., Dennis Ray Morgan

Masters Theses

"This thesis presents an algorithm which selects from a given set of stops a subset of stops corresponding to a given bus which minimize the riding time of students in going to and from school. The time required in picking up students at their stops and delivering them to school is analyzed. An example is given which illustrates the formulation of a problem and the results obtained from the solution. Finally, the program which was used in the solution of the problem is given along with its implementation"-- Abstract, p. ii

Combined Forced And Free Convection On A Vertical Cylinder And Flat Plate, Aleksandros Mucoglu

Masters Theses

"In the study of fluid flow over heated surfaces, it is customary to neglect the effects of buoyancy force when the flow is horizontal. However, such a practice is not justified when the forced flow is along an inclined or a vertical surface, because under these conditions the buoyancy force modifies considerably the flow field and hence the heat transfer rate from the surface. Such a flow is termed combined forced and free convective flow.

The present study is concerned with the effects of buoyancy force on forced convection along an isothermal vertical cylinder and a flat plate. This type …

The Investigation Of Video Sensitivity And Data Processing Errors Encountered In An Airborne Receiver, James Lee Hamilton

Masters Theses

"The investigation of video sensitivity and both biphase demodulation and Doppler shift processing errors is performed. The effect of pass band ripple on the noise bandwidth of two pole filters is developed. The effect of feedback on the effective noise figure of a high gain IF (Intermediate Frequency) amplifier is investigated and discussed. An analysis of a limiting amplifier-biphase demodulator circuit is attempted. A computer simulation of this same circuit is also performed and the results are compared to measurements taken in the laboratory. With respect to multipath corrupted input signals, a differential phase shift keyed biphase demodulator is shown …

Comparison Of Scatter Storage Techniques Using An Analysis Of Variance Model, Robert Lee Kitsch

Masters Theses

"An analysis of variance model is developed to determine if a significant difference exists between various scatter storage techniques. The model is a two-factor hierarchical mixed design with each combination of transformation and search method considered as a treatment. The data used in the analysis is obtained from a computer program which provides statistics on the number of probes needed to load the (k+l)st item into a table for the different treatments. An ANOVA table was then computed for various load factors.

A significant difference among the treatments was detected for load factors above .4. Comparison of individual treatments using …

Diurnal Solar Heating And Cooling Of A Water Reservoir, Stephen Patrick Lepper

Masters Theses

"The transient diurnal heating of a water reservoir by solar radiation; and its cooling by surface convection, evaporation, and radiation emission was analytically modeled. The directional and spectral properties of the incident solar radiation, the air-water interface, and the selective attenuation of radiant energy by the water were properly included in the analysis. The diurnal vertical temperature distribution was predicted by numerically solving the energy equation using a finite difference technique. It was determined that the surface boundary conditions and the selective absorption of radiant energy by the water strongly influence the thermal stratification of stagnant water.

The diurnal compensating …

A Systems Approach To Evaluating The Effectiveness Of Training Programs, Jesse Michael Haverstick

Masters Theses

"The evaluation of the effectiveness of training programs has long been recognized as a necessity in determining the allocation of investment. However, much of industry, today, still does not use an easily administered, systematic, and reliable method for determining training program effectiveness for their salaried (managerial) personnel. It is easily seen that determining training program effectiveness is not a one-shot, one-time event, but a continual process, whose aim, ultimately, is increased productivity. For the effectiveness of a training program to be adequately monitored, these four areas should be measured: (1) trainee attitude, (2) learning, (3) behavior change, and (4) productivity …

Possible Damage Mechanism In Dresden 2 Class Boiling Water Reactor Fuel, Donald Lee Moffett

Masters Theses

"A thermal hydraulic analysis of a typical hot channel of a Dresden 2 class boiling water reactor is studied for possible severe local overheating. The COBRA-II thermal hydraulic analysis code is modified to include critical heat flux calculations for each subchannel. The effects of flow distribution, inlet mass velocity variations, dimensional tolerances, enrichment variations, and input parameters are examined in detail. Bulk channel results are in good agreement with the published data, but the assembly wall side of the corner fuel rod has a minimum critical heat flux ratio of less than unity for a number of the situations examined. …

A Study Of The Subsurface Stratigraphy Of The Upper Cambrian In Western Missouri, Joseph L. Thacker Jr.

Masters Theses

"Megascopic examination of diamond-drill cores supplemented by insoluble residue data provides a usable means of studying the lithologic characteristic of Upper Cambrian strata in the subsurface of western Missouri.

The stratigraphic relationships within each Cambrian formation and the relationships of each Cambrian unit to formations above and below are discussed.

The relationship of Upper Cambrian strata to the Precambrian surface in western Missouri and easternmost Kansas is illustrated. The Lamotte Sandstone is overlapped by the Reagan Sandstone against Precambrian topographic highs and the Bonneterre and lower Davis are replaced by sandstones similar to the Reagan in southwest Missouri and southeast …

Synthesis Of Fused Silica By Flame Hydrolysis, James Edward Rourke

Masters Theses

"Apparatus to synthesize and dope high purity, optical quality fused silica by flame hydrolysis was constructed. Fused silica samples containing 0, <35, 35 and 90 ppm niobium were synthesized and characterized by the following properties: purity, refractive index, radiation damage resistance, and transmission spectra. The properties of the undoped sample were shown to be comparable to those of available commercial fused silica. Deviations in the properties of the doped samples from those of the undoped samples were explained in terms of the niobium content"--Abstract, page ii.

An Economical-Digital Interface For Multiplex Recording Of Analog Signals, Samuel Knoles George

Masters Theses

"In measuring and evaluating performance of an automobile and driver combination it is necessary to record data from the vehicle and driver while both are in the field.

The University of Missouri - Rolla Transportation Research Program performs this type of evaluation. The present method of recording data in the field is with a large, bulky, and somewhat fragile strip chart recorder.

The digital recording interface described in this paper is designed to permit replacement of the strip chart recorder with an audio tape recorder. The interface will allow simultaneous recording of two analog channels which may be reproduced as …

A Multiple-Plan Evaluation Model For Small Ungauged Watersheds, James R. Dexter

Masters Theses

A computer solution model is proposed for simulation of the effect of alternative measures for flood damage reduction. The goal of the model is to optimize the value of an objective function which will maximize the amount of net benefits returned by the project. The evaluation includes unit hydrograph synthesis, direct runoff construction, computation of average annual damages, and optimization of an objective function. A test application of the model is made on a small community affected by floods from a small ungauged stream"--Abstract, page iii.

A Kinetic Study Of The Cerium (Iv)-Oxalic Acid System In Acidic Sulfate Media., Robert Richard Kessler

Masters Theses

"The kinetics of the cerium (IV) oxidation of oxalic acid was studied by a stopped-flow spectrophotometric technique in acidic sulfate media. The media consisted of perchloric acid, sodium sulfate and sodium perchlorate which allowed for the determination and control of the various sulfate and hydroxo species of cerium (IV) at prescribed hydrogen ion concentrations. The rate of reaction decreases rapidly with increasing sulfate concentration which yields evidence against previous reports indicating Ce (SO₄)₂ and Ce (SO₄)^2-₃ as the reactive cerium (IV) species. The results indicate that Ce (SO₄)²⁺ is the …

A Discrete Approach To Surface Interpolation, Jerry Lee Albert Sandvos

Masters Theses

"An equidistant spacing of two dimensional data points is a requirement of most automated analysis routines. In this thesis, a method of generating such equispaced data from randomly spaced data is developed and implemented by a set of computer routines. The method represents the study area as a two dimensional spatial array, in which each array cell represents the data value of a subarea of the study area. A routine sorts and places the data in the array. Missing values in the array are interpolated from nearest neighbors. Filtering is used to smooth errors and a contouring routine is used …

A Geohydrologic Study Of The St. Francois County Regional Sanitary Landfill., Kent David Gastreich

Masters Theses

"The St. Francois County Sanitary Landfill is a 503.8-acre site located 1n the Old Lead Belt area of southeast Missouri. The landfill, which was opened in July 1973., is being operated by the non-profit St. Francois County Environmental Corporation. The site is largely covered by up to 80 feet of tailings finely ground dolomite of the lower Bonne Terre Formation., wh1ch are a product of decades of lead mining and milling at the Deslodge, Missouri, Mine. The landfill 1s surrounded on three sides by the Big River. Approximately 36,000 people are being served by the landfill which takes in about …

Two Dimensional Radiant Interchange Between Two Isothermal Semi-Infinite Parallel Strips., Stanley Earl Mckinney

Masters Theses

"Four straight forward solution methods were used to determine the two-dimensional variation of the radiosity on two identical constant temperature, gray, semi-infinite parallel strips. Physical convergence parameters were developed for the one-dimensional case and extended to two dimensions. A study using these parameters was undertaken to identify the preferable method. The solutions obtained with this "best method" agree well with the one-dimensional solutions. The error is estimated to be less than one percent" -- Abstract, p. ii

A Study Of The Feasibility In Obtaining The Kinetics Of Various Ordering Phenomena Of The Iron Aluminum System Utilizing The Mössbauer Effect, Lloyd Rollan Chapman

Masters Theses

"The determination of the kinetics of ordering for various ordering phenomena of the Iron-Aluminum system utilizing exclusively the Mössbauer effect technique is shown to be infeasible for all but a highly restrictive consideration from experimental as well as theoretical evidence. Also, the possible use of the Mössbauer effect for the analysis of other ordered systems is discussed.

An alternative method for the acquisition of the needed information utilizing diffraction and Mossbauer techniques is presented recognizing the need for a computer fitting analysis of the complex Mössbauer effect spectra. However, at this stage of investigation, no experimental work has been performed …

The Effects Of Washout In Polydispersed Metalic Aerosols, Jerry N. Burford

Masters Theses

"Experimental Collection Efficiencies are presented for drops of approximately 0.1cm radius falling through aluminium, magnesium and molybdenum oxide polydispersed aerosols. The experimentation was conducted in two identical cylindrical chambers, one being used for aerosol washout, and the other for allowing the aerosol to decay normally. The Collection Efficiency data were thus determined by comparing the aerosol concentration changes in the two chambers. The rather strong effects that induced micro-turbulence and relative humidity have on aerosol collection and aerosol decay were observed and are discussed"--Abstract, page ii.

Detection Of Impurities In Zinc Sulfate Electrolytes By Cyclic Voltammetry Techniques., Bruce Alan Lamping

Masters Theses

"A cyclic voltammetric technique has been developed for quantitatively detecting the presence of active chemical species present in zinc sulfate electrolytes. The experimental apparatus consisted of a pyrex "H" cell, an Al cathode encased in a Teflon holder, a carbon anode and a mercurous sulfate reference electrode. Voltammograms were obtained from industrial, purified neutral leach solution (Cominco Ltd., Trail, B.C.) acidified to give a final concentration of 0.77 M Zn⁺⁺, 1 M H₂SO₄. The polarization curves were then evaluated and used as a reference standard to compare with results obtained when various organic and …

A Solid Waste Plan For The Ozark Foothills Region Of Missouri., Don Raymond Swyers

Masters Theses

"This paper has been developed as a result of the concern over prevailing solid waste practices in the Ozark Foothills Region of Missouri. An attempt has been made to assess the present solid waste collection and disposal practices found in the Ozark Foothills Region. The analysis of the existing solid waste practices indicates that to accomplish the collection and disposal of solid waste in an efficient and sanitary manner with an acceptable level of public expenditure requires the establishment of solid waste management systems based upon cooperative programs of intermunicipal and intercounty action.

Seven alternative management systems for solid waste …