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Electronic Theses and Dissertations

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The Relationship Of Late Cretaceous Deposition To A Buried Ridge In Northern Mississippi, U. V. Jones Jan 1973

The Relationship Of Late Cretaceous Deposition To A Buried Ridge In Northern Mississippi, U. V. Jones

Electronic Theses and Dissertations

No abstract provided.


An Analysis Of The Activities Of A Sample Of Pharmacy Preceptorsin Mississippi / By Francis Bernard Palumbo, Francis Bernard Palumbo Jan 1973

An Analysis Of The Activities Of A Sample Of Pharmacy Preceptorsin Mississippi / By Francis Bernard Palumbo, Francis Bernard Palumbo

Electronic Theses and Dissertations

No abstract provided.


Simulation Of Dynamic Responses Of A Concentric Triple-Tube Heatexchanger To Flow Disturbances, Yuqi Lei Jan 1973

Simulation Of Dynamic Responses Of A Concentric Triple-Tube Heatexchanger To Flow Disturbances, Yuqi Lei

Electronic Theses and Dissertations

No abstract provided.


The Effect Of Axial Strain On The Large Deflection Of A Viscoelastic Column, Kanubhai H. Patel Jan 1973

The Effect Of Axial Strain On The Large Deflection Of A Viscoelastic Column, Kanubhai H. Patel

Electronic Theses and Dissertations

No abstract provided.


An Analytic Study Of A Vibrationally Relaxing Gas Flowing Through A Nozzle, William Larry Holman Jan 1973

An Analytic Study Of A Vibrationally Relaxing Gas Flowing Through A Nozzle, William Larry Holman

Electronic Theses and Dissertations

No abstract provided.


Optimum Inventory Control Of Small Hospital Blood Banks, Kuchibhotla Ananda Murthy Jan 1973

Optimum Inventory Control Of Small Hospital Blood Banks, Kuchibhotla Ananda Murthy

Electronic Theses and Dissertations

No abstract provided.


Use Of A Priori Knowledge In Moment Method Solutions / By Mark D. Tew, Mark D. Tew Jan 1973

Use Of A Priori Knowledge In Moment Method Solutions / By Mark D. Tew, Mark D. Tew

Electronic Theses and Dissertations

No abstract provided.


The Development And Testing Of A Fire Simulator Exercise, Don A. Clymer Aug 1972

The Development And Testing Of A Fire Simulator Exercise, Don A. Clymer

Electronic Theses and Dissertations

A forest fire simulation exercise was developed for the purpose of supplementing forest fire instruction, presenting students with decision-making situations encountered on forest fires, and introducing them to the fire simulator at Stephen F. Austin State University. The final exercise was developed after preliminary work and development of a more simple exercise. The problems with equipment, recruitment of simulator personnel, and the development and execution of the simulator exercises are discussed. Scheduling adequate time for practice, and providing adequate personnel training were found to be the major obstacles in simulator use. Future fire simulator use at SFA will be dependent …


Intermediate Wheatgrass Seed Production Responses To Fertilizers And Cultural Practices, James Bernard Weber May 1972

Intermediate Wheatgrass Seed Production Responses To Fertilizers And Cultural Practices, James Bernard Weber

Electronic Theses and Dissertations

Intermediate wheatgrass Agropyron intermedium (Host) Beauv. is a cool season, sod farming rhizomatous and/or stoloiferous grass, best adapted to upland silt or silty clay loam soils. Intermediate wheatgrass has a fast rat9 of root spread by rhizomes and sometimes stolon’s with late summer (July 15 August 30) seed maturity. The major area of distribution of intermediate wheatgrass in the United States is central North Dakota, South Dakota, Nebraska, Idaho and Washington, with a minor distribution area east to Minnesota and west to Colorado, Montana, and Wyoming. A growing interest in reseeding the Great Plains, both to improve the rangeland and …


An Integrated Circuit Analog Computer, Sthaporn Udomsin May 1972

An Integrated Circuit Analog Computer, Sthaporn Udomsin

Electronic Theses and Dissertations

The Heathkit Model EC-1 Educational Analog Computer, priced at $199.95, is the least expensive general-purpose analog computer on the market. This computer contains nine unstabilized vacuum tube de amplifiers with de open loop voltage gain of about 1000. The low amplifier gain, and amplifier drift limit the accuracy of the solution. Results obtained are sometimes confusing. Many integrated circuit operational amplifiers available on the market seem to give much better performance, priced from a few dollars in monolithic form up to hundreds of dollars in hybrid form. The low-cost operational amplifiers, designed for various applications, are usually not intended for …


Comparative Study Of Constant Voltage And Constant Current Electroanesthesia, Anand Vithal Tulpule May 1972

Comparative Study Of Constant Voltage And Constant Current Electroanesthesia, Anand Vithal Tulpule

Electronic Theses and Dissertations

In the field of anesthesia, drugs are used extensively, however; electro anesthesia or the use of electric current to achieve anesthesia is also being studied because of its excellent recovery characteristics. This thesis is a comparative study of different techniques of achieving electro anesthesia. Pharmacologically, general anesthesia is a completely irreversible converging depression of certain central nervous system functions wherein respiration, circulation and the vital life support mechanisms are not seriously impaired. Clinically, general anesthesia is a production of unconsciousness, some degree of areflexia, muscular relaxation and varying degrees of respiratory depression in an orderly progression. Electro anesthesia can be …


Mathematical Simulation Of Sediment Deposit In Estuaries, Yuh- Hua Tsai May 1972

Mathematical Simulation Of Sediment Deposit In Estuaries, Yuh- Hua Tsai

Electronic Theses and Dissertations

It is viewed as necessary and useful to devise a method which can be used to solve the problems of sediment deposit in estuaries more directly and completely. In this study, three basic equations have been extended to a more general case in which lateral inflows and various width of channel are considered. A solution of the problem has been obtained by Chang and Richards. In their research, three basic equations have been successfully reduced to two differential equations by assuming that the change in bed slope due to sediment deposit in a short period is insignificant compared with the …


Impulse Voltage Breakdown Strength Vs. Temperature Of Octafluoropropane (Ca Fa) Gas Exposed To Uniform And Non-Uniform Fields, Dinesh N. Taneja May 1972

Impulse Voltage Breakdown Strength Vs. Temperature Of Octafluoropropane (Ca Fa) Gas Exposed To Uniform And Non-Uniform Fields, Dinesh N. Taneja

Electronic Theses and Dissertations

The purpose of my thesis is to investigate the impulse voltage breakdown strength of Octafluoropropane gas as a function of the temperature of the gas. The standard 1.5 x 40f4sec. positive polarity impulse waveshape was used in alt the tests. The investigation was made with and without a weak source of irradiation present near the eel I. Two types of electrode systems were used: three fourth inch sphere to grounded plane which represented a fairly uniform field, and a point to grounded plane representing a highly non-uniform field. The tests were carried out to room temperature to a temperature of …


A Structural Analysis Of The Beef Slaughtering Industry In South Dakota, Haven L. Stuck May 1972

A Structural Analysis Of The Beef Slaughtering Industry In South Dakota, Haven L. Stuck

Electronic Theses and Dissertations

The income received from the production of beef, South Dakota's most important product, could be greatly expanded by an increase in cattle slaughter. The main objective of this study is to analyze the beef packing industry in the state. in an attempt to determine the optimum number, location and size of specialized beef slaughter plants in South Dakota. Recent structural changes in the meat packing industry should be beneficial to the meat packing industry in South Dakota. It is hoped that this study will provide useful information to industry personnel for making investment decisions. This information could also be used …


The Photochemistry Of Tetramethyl-3-Thio-1,3-Cyclobutanedione, Mason Ming-Sun Shen May 1972

The Photochemistry Of Tetramethyl-3-Thio-1,3-Cyclobutanedione, Mason Ming-Sun Shen

Electronic Theses and Dissertations

The first law of photochemistry, formulated in the works of Grotthus and Draper more than a century ago, states: Only the light which is absorbed by a molecule can be effective in producing photochemical change in the molecule. The law and its consequences are commonly taken for granted by photo chemists today. Until the advent of quantum mechanics, the effect of light on matter was not properly understood. As a result, during the primeval age of photochemistry numerous and wondrous photochemical reactions were discovered, but both useful application of these results and formulation of a unifying theory were lacking. From …


Classification Error Using Quantized Data, David V. Serreyn May 1972

Classification Error Using Quantized Data, David V. Serreyn

Electronic Theses and Dissertations

The ability to make the correct decision is an ability that is perhaps desired by all human beings. Being able to make a correct decision is a function of the amount of information that is available to the decision maker. His ability to make a decision is enhanced by the use of machines specially designed for obtaining information or making decisions such as an electronic computer. Such is the case in the application of pattern recognition to a remote sensing problem. Pattern recognition is defined here as techniques which help distinguish between several classes such that the classification error is …


A Design For Advanced Preparation Of Educational Researchers. (Volumes I And Ii), Fon R. Belcher May 1972

A Design For Advanced Preparation Of Educational Researchers. (Volumes I And Ii), Fon R. Belcher

Electronic Theses and Dissertations

Statement of the problem. The central problem of this study was twofold: (1) to determine whether the educational research preparation offered by selected colleges and universities bore out the findings of critics, and (2) to synthesize and synergize opinions and facts regarding educational research, as expressed by men active in the field, into a flexible proposal whereby individual student's programs in research preparation could be "custom-made" to suit their most obvious research needs. (Abstract shortened.)


A Design For Advanced Preparation Of Educational Researchers. (Volumes I And Ii), Fon R. Belcher May 1972

A Design For Advanced Preparation Of Educational Researchers. (Volumes I And Ii), Fon R. Belcher

Electronic Theses and Dissertations

Statement of the problem. The central problem of this study was twofold: (1) to determine whether the educational research preparation offered by selected colleges and universities bore out the findings of critics, and (2) to synthesize and synergize opinions and facts regarding educational research, as expressed by men active in the field, into a flexible proposal whereby individual student's programs in research preparation could be "custom-made" to suit their most obvious research needs. (Abstract shortened.)


Inventory Control Of Deteriorating Items, George C. Philip Apr 1972

Inventory Control Of Deteriorating Items, George C. Philip

Electronic Theses and Dissertations

The problem of the control and maintenance of inventories of physical goods is common to most enterprises. In the past, inventories were considered as the 'graveyard' of American business, because surplus stock was a principal cause for business failures. However, in large scale enterprises the inventory system may become too large and complex to be analyzed intuitively and any deviation from the optimum inventory policy would mean substantial losses. As a result of the current small profit margins, proper inventory control has become even more important. The basic concept in inventory control consists of striking a balance between the cost …


Influence Of Freezing Water Samples Prior To Chemical Analysis, Roger Ray Patocka Apr 1972

Influence Of Freezing Water Samples Prior To Chemical Analysis, Roger Ray Patocka

Electronic Theses and Dissertations

The need to collect and analyze samples of water resources periodically has been realized for many years by people concerned. with the use and preservation of water resources. As water use increased, routine analysis of water quality also increased. In order to obtain representative results of analyses, care must be taken to obtain samples which are representative of the existing field conditions. Care must also be taken to have a sample which is representative of the field conditions at the time the sample is being analyzed. The time lapse between collection and analysis of water samples can become quite lengthy …


An Fft Pheasant Egg Spectral Analysis For The Purpose Of Electrode-Skin Interface Modeling, Chriswell G. Hutchens Apr 1972

An Fft Pheasant Egg Spectral Analysis For The Purpose Of Electrode-Skin Interface Modeling, Chriswell G. Hutchens

Electronic Theses and Dissertations

The problem to be investigated within the scope of this manuscript involves the initial groundwork for eventual field telemetry of the pheasant ECG. It will consist of determining the input impedance and bandwidth requirements for the telemetry transmitter amplifier to be used. The effects if impedance loading on the ECG equivalent voltage generator with varying loads between 1 kꭥ and 100 kꭥ will be investigated. These data will be used to formulate a model of the electrode-skin interface transfer function. The ECG is accurately reproduced if the impedance is sufficiently large. Should achievement of a sufficiently high input impedance in …


Study Of Laminar Heat Transfer In A Cone, Chang-Shieng Philip Hsia Apr 1972

Study Of Laminar Heat Transfer In A Cone, Chang-Shieng Philip Hsia

Electronic Theses and Dissertations

When a fluid flows through a conduit of different temperature from itself, a heat exchange occurs between them. In studying the heat transfer of the fluid in the conduit we can obtain information about the rate of heat absorption and losses, the temperature distributions, etc. This information is important in design work and to aid in the correct selection of construction and insulation materials. Sometimes the conduit or a section of the conduit is conical, as for example the diffuser in hydro-turbo machines and air compressors, the nozzles of steam or gas turbines, and various heating or exhaust ducts. Usually …


Temperature Effects On Integral Abutment Bridges During Final Construction Stages, David Earl Holman Apr 1972

Temperature Effects On Integral Abutment Bridges During Final Construction Stages, David Earl Holman

Electronic Theses and Dissertations

This study of the integral abutment type bridge was based exclusively on the design used by the South Dakota Department of Highways. The design utilizes an HP10 x 42 steel bearing pile field welded to each bridge girder. To secure proper interaction between the concrete abutment and the steel girder, shear studs or a small stiffener are shop-welded to the girder web on a line coinciding with the eventual center line of the integral abutment which is two feet wide. Reinforced holes are also located in the girder web near the interior face of the integral abutment to accommodate shear …


Impulse Voltage Characteristics Of Class 155a °C To 220a °C Solid Insulating Materials, George C. Morfiris Apr 1972

Impulse Voltage Characteristics Of Class 155a °C To 220a °C Solid Insulating Materials, George C. Morfiris

Electronic Theses and Dissertations

The drastic increase in the ratings of power apparatus in recent years, as a, result of rapidly increased power needs, has brought about dramatic developments in electrical insulation. As voltage and power ratings increased, while size reduction and higher efficiencies were sought, temperatures which insulations must withstand without losing their characteristics also increased. In an effort to produce insulations with higher thermal and electrical properties, insulation manufacturers began producing electrical insulations utilizing synthetic high polymers, phenolic, and other thermosetting resins and silicones. The result has been a series of advanced insulation systems which the has been so rapid that a …


A Study Of Ferroresonant Conditions On Distribution Circuits Involving Cable-Connected Power Transformers, Ronald H. Miller Apr 1972

A Study Of Ferroresonant Conditions On Distribution Circuits Involving Cable-Connected Power Transformers, Ronald H. Miller

Electronic Theses and Dissertations

As far as electric utilities are concerned, ferroresonance is undesirable on distribution or transmission systems because it may result in either transient or sustained over voltages under certain conditions. Lightning arrestor flashover, excessive transformer hum, transformer damage, cable damage, and phase reversals have been attributed to ferroresonance. The probability of ferroresonant conditions resulting in damage to equipment has only relatively recently risen to an appreciable level. The difference lies in the fact that the farroresonant circuit is nonlinear due to the inductive component. This component is a saturable core reactance, which has its impedance value dictated by the saturation characteristic …


Reliability Study Of A Revision Of The Modified Los Angeles Rattler Test Using Class "C" Graded Aggregates, Dallas L. Hofer Apr 1972

Reliability Study Of A Revision Of The Modified Los Angeles Rattler Test Using Class "C" Graded Aggregates, Dallas L. Hofer

Electronic Theses and Dissertations

Both the producer and the user are concerned with a characteristic of an aggregate that may be best described as "durability." In a broad sense, durability means the ability of the aggregate to remain unchanged over a fairly long period of time in spite of adverse natural processes or forces to which it is subjected. Durability, as it applies to mineral aggregates, means the ability to resist degradation. Erickson has defined degradation as "A breaking down and/or disintegration of particles of sand, gravel, or stone, primarily due to alteration and subsequent decomposition of their mineral components, accelerated by the action …


Feasibility Study For A Biotelemetry Transmitter Using An Integrated Circuit Chip, August Louis Hinz Apr 1972

Feasibility Study For A Biotelemetry Transmitter Using An Integrated Circuit Chip, August Louis Hinz

Electronic Theses and Dissertations

The objective of this research project was to develop a radio telemetry system capable of transmitting the heart rate of the pheasant. Because literature relating to the heart rate of the pheasant is very scarce, data concerning voltage amplitude of the pheasant electrocardiogram (ECG) were needed. To telemeter the heart rate a biotelemetry transmitter was developed. This biotelemetry transmitter is to be used to study the heart rate of' pheasants through the breeding, nesting and brood raising cycle. The transmitter could also be used during the hunting season and other times of stress to determine how pheasants are affected by …


Heat And Moisture Production In A Closed Environment Beef Building During Warm Weather, Martin L. Hellickson Apr 1972

Heat And Moisture Production In A Closed Environment Beef Building During Warm Weather, Martin L. Hellickson

Electronic Theses and Dissertations

The need for improved production facilities is emphasized by the fact that beef consumption is at record levels in the United States with continued growth predicted. The annual per capita consumption of beef and veal in the United States was nearly 73 pounds in 1949 and increased 56 per cent to approximately 114 pounds per person by 1969. The demand for beef is also increasing in developed areas throughout the rest of the world. Increases in demands for beef have stimulated the beef industry to make significant gains in production. The production of beef in the United States has increased …


Developmental Analyses Of Biochemical Fuel Cells, Roderick James Mcneil Apr 1972

Developmental Analyses Of Biochemical Fuel Cells, Roderick James Mcneil

Electronic Theses and Dissertations

One of the newest areas of biological research, bioelectrochemistry, involves the production of electrical energy through the action of an enzymatic catalyst on a specific substrate. Previous research in the field of bioelectrbchemistry has led to controversy concerning the mechanisms of microbial (enzymatic) activity for power production. It is the purpose of this study to demonstrate whether particular microorganisms or their associated enzyme fractions are indeed responsible for the electrical activity observed in a biochemical fuel cell (BFC). The microorganisms and their associated enzyme systems utilized in this study are as follows: 1. Asperqillus niger - glucose oxidase (1.1.3.4 B-D-Glucose: …


An Investigation Into The Transient Behavior Of Multichannel Queueing Systems, James R. Mccormick Apr 1972

An Investigation Into The Transient Behavior Of Multichannel Queueing Systems, James R. Mccormick

Electronic Theses and Dissertations

In today's world, the waiting lines or queues formed by people, machines, or other units are common and occur whenever the temporary demand for a service exceeds the capacity to provide it. These values may be the costs associated with idle production equipment and personnel or the lost sales due to unsatisfied customers. If one designs for sufficient facilities so that no queue builds up, then the operation is likely to be uneconomical due to excessive idle time at the service facility. If one designs the facility so that there is never any idle time at the service facility, then …