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Principles, Methods And Procedures For Setting Standards For A Standard Cost System, Letricia Gayle Douglass
Principles, Methods And Procedures For Setting Standards For A Standard Cost System, Letricia Gayle Douglass
Electronic Theses and Dissertations
No abstract provided.
Milton's Imaginative Use Of Mythology, Charles K. Henley
Milton's Imaginative Use Of Mythology, Charles K. Henley
Electronic Theses and Dissertations
No abstract provided.
A Geological Investigation In West-Central Union County, John Leonard Weissinger
A Geological Investigation In West-Central Union County, John Leonard Weissinger
Electronic Theses and Dissertations
No abstract provided.
Study Of A Variable Feedback Oscillator And Its Use In Automatic Temperature Control, Tien-Chang Hsia
Study Of A Variable Feedback Oscillator And Its Use In Automatic Temperature Control, Tien-Chang Hsia
Electronic Theses and Dissertations
Many methods and devices have been utilized in the automatic control of temperature. However, the accuracy requirement of a temperature controlling device depends upon its use. The purpose of this work was to design a device to obtain accuracy of control to the extent of better than one tenth of a degree centigrade of deviation of the specified temperature. This can be accomplished by using a vacuum tube device. The theoretical analysis of the nonlinear characteristic of the electronic circuit will constitute the main part of the work. The complete control system consisted of a feedback type oscillator, a power …
The Dielectric Properties Of Mixtures Of Organic Compounds And Perfluoropropane, Vei-Shi Chen Ho
The Dielectric Properties Of Mixtures Of Organic Compounds And Perfluoropropane, Vei-Shi Chen Ho
Electronic Theses and Dissertations
In this study, an attempt was made to understand the type and amounts of metastable intermediates formed when perfluoropropane was placed under electrical stress by adding small amoutns of organic compounds such as thiophene, isopropyl mercaptan, ethyl methyl sulfide, dimethyl disulfide, carbon disulfide, and nitrobenzene. The sulfur compounds were chose because fluorine was reported to react with thiophene to form sulfur hexafluoride. It was thought that if fluorine were formed from perfluorocarbons in the corona, it might be advantageous to remove this metastable species. Nitrobenzene was used because of its known free radical inhibitor characteristic in polymerization reactions. The hope …
The Design And Development Of An Automatic Guiding System For A Tractor, Ali A. Hamidi
The Design And Development Of An Automatic Guiding System For A Tractor, Ali A. Hamidi
Electronic Theses and Dissertations
Mechanization and Automation are very fashionable words in present day Agriculture. Both imply a reduction in the amount of human effort necessary to achieve certain ends, and to accept the need for either of them is to assume that it will lead to some financial gain. Automation as applied to Agriculture is to improve many limited factors which affect the final yield of any agricultural crop. One of these factors, the mechanical operation, requires considerable care and attention to more nearly insure maximum yield and high quality. Numerous methods have been adopted through research and development to minimize field losses …
An Amplitude Modulated Radio Telemetry System For The Measurement Of Physiological Temperatures And A Revised Analysis Of R-C Phase-Shift Transistor Oscillators, Carl Jerl Furchner
An Amplitude Modulated Radio Telemetry System For The Measurement Of Physiological Temperatures And A Revised Analysis Of R-C Phase-Shift Transistor Oscillators, Carl Jerl Furchner
Electronic Theses and Dissertations
In recent years, electronic instrumentation has been employed as a means of measuring physiological phenomena. One use of this instrumentation is the location of small radio transmitters within animals. The most common method of transmitting temperature data is by varying the carrier frequency of a small temperature sensitive oscillator located within the animal and recording the change of this frequency at the receiver; however, this system has some disadvantages. Reduction of these problems was believed to be possible by developing an amplitude modulated transmitting unit in which a temperature controlled audio oscillator would be used to amplitude modulate the carrier …
Linear Programming Approach To Faculty Evaluation, Moses David Seversky
Linear Programming Approach To Faculty Evaluation, Moses David Seversky
Electronic Theses and Dissertations
The purpose of this study is to explain and demonstrate how linear programming can be applied to faculty evaluation and how this approach cane be interpreted mathematically. This contention will be developed through a mathematical oriented survey of existing job evaluation methods, a discussion of relevant linear programming methods, models, construction of a mathematical model for faculty evaluation, and a numerical example demonstrating the us of the model.
Preliminary Results On The Hooded Ogee Pipe Drop Spillway, Donald Mervin Edwards
Preliminary Results On The Hooded Ogee Pipe Drop Spillway, Donald Mervin Edwards
Electronic Theses and Dissertations
The farm pond has come into popular use in the past few years as an inexpensive source of water for livestock, irrigation, and domestic use. With minor design modifications, the farm pond can be used as a flood detention structure. Component parts of a farm pond are the storage area, earth damn, grassed emergency flood spillway, and mechanical spillway. The mechanical spillway is probably the most important component part of safeguarding the successful operation of the farm pond due to its primary purpose of carrying low flows of surplus watershed runoff through the earth damn. There are three characteristics that …
A Study Of A Servomechanism System By Analog Simulation, Bong Ho
A Study Of A Servomechanism System By Analog Simulation, Bong Ho
Electronic Theses and Dissertations
The classical method of analysis of servomechanism systems has long been used. It has the advantage of high accuracy and can give more detailed information; however, most of the engineering problems have increased continually in complexity, because of the rapid growing of scientific advancement. Due to the difficulties faced when applying this method, the use of analog methods to simulate the actual system will prove much more efficient and economical. The prime reason for using analog methods, as stated above, is to reduce the effort in manipulation, so that one can apply his analytical ability to the interpretation of the …
An Electromechanical Automatic Voltage Regulator For A Network Computer, Charles Chiung-Hsiung Lee
An Electromechanical Automatic Voltage Regulator For A Network Computer, Charles Chiung-Hsiung Lee
Electronic Theses and Dissertations
This thesis presents a project in the design and study of a voltage regulator for generators on an AC network computer. The entire unit consists of two main parts: the part with sensing and amplifying circuits and the part with power drive devices. In the sensing and amplifying circuits, tubes such as 5651, 12AX7, and 12AU7 are used. The variation of AC voltage of a generator in a network system, as simulated by a variac on the analyzer, is sensed, after being rectified, by a grid of 12Ax7 while the grid voltage on the other half of the tube is …
The Design, Construction, And Testing Of An Exhaust-Gas Thermoelectric Generator, Vernon D. Pepper
The Design, Construction, And Testing Of An Exhaust-Gas Thermoelectric Generator, Vernon D. Pepper
Electronic Theses and Dissertations
Thermoelectricity is the direct conversion of heat energy to electrical energy, or vice versa. Conventional electrical generating systems convert heat energy by one or more intermediate processes to mechanical energy, which in turn is used to drive a generator. Each intermediate process has an associated energy loss or inefficiency which accumulates until the over-all conversion efficiency may range from less than 1 per cent to about 40 per cent depending on the system used and the amount of energy produced (9)*. It is reasonable to assume that elimination of the intermediate processes by use of thermoelectricity could reduce the heat …
The Design And Construction Of A Radio Telemetry Unit For The Study Of Ruminal Pressures, Ernest L. Rahm
The Design And Construction Of A Radio Telemetry Unit For The Study Of Ruminal Pressures, Ernest L. Rahm
Electronic Theses and Dissertations
Many attempts have been made in the past few years to construct small implantable radio transmitters which can be used to study physiological characteristics of unrestrained animals. The success of these units has increased almost directly with the “state of the art” of transistor circuit design, and considerable heretofore unobtainable data is being collected in this manner. Most of the effort, and success, has been with transmitters for the study of heart rate, core temperature, and alimentary canal pressure. The study of bloat in ruminants is believed to be an application for which the use of such devices would be …
Some Electrical Characteristics Of C3f8 Electrode Systems, Yarlagadda Radha Krishna Rao
Some Electrical Characteristics Of C3f8 Electrode Systems, Yarlagadda Radha Krishna Rao
Electronic Theses and Dissertations
This paper treats with corona discharges at normal pressure and at room temperature in C_3 F_3 and air with the following electrode systems: ¾” diameter sphere to 1 ¾” diameter plane, point to 1 ¾” diameter plane, point to point, 1” diameter sphere to 1” square plane, superimposed on a 1 ¾” diameter plate, 3/4” square plane to ¾” square plane (crossed and uncrossed), and ½” square plane to 1 ¾” diameter plane. The main discussions are: breakdown strength of these gases, mechanism of breakdown, and field mapping with the electrode systems. For transformers and circuit breakers insulation is most …
The Technical Abilities And Manipulative Skills Which Should Be Taught In A High School Vocational Agriculture Farm Mechanics Program In South Dakota, Charles O. Stormo
The Technical Abilities And Manipulative Skills Which Should Be Taught In A High School Vocational Agriculture Farm Mechanics Program In South Dakota, Charles O. Stormo
Electronic Theses and Dissertations
The typical high school vocational agriculture teacher experiences a lack of time necessary to teach all of the technical abilities and manipulative skills that have become a part of the farm mechanics program. He may spend time teaching outdated abilities when his time could be more profitability used in teaching the abilities that are required in modern mechanized farming. Perhaps some time should also be applied to anticipating and developing those abilities required to do jobs which are now commonly referred to specialists but may be required of the student when he becomes established in farming several years hence. An …
A Comparison Between New Simplified Design Procedure With Variable Moment Of Inertia And Standard Design Procedure With Constantmoment Of Inertia Of Reinforced Concrete Highway Bridges / By Herman Serkis Ovagimyan, Herman Serkis Ovagimyan
A Comparison Between New Simplified Design Procedure With Variable Moment Of Inertia And Standard Design Procedure With Constantmoment Of Inertia Of Reinforced Concrete Highway Bridges / By Herman Serkis Ovagimyan, Herman Serkis Ovagimyan
Electronic Theses and Dissertations
No abstract provided.
A Study Of Current Distribution, Resistance Losses, And Short Circuit Forces In A Transformer With A Low-Voltage Strip Winding, Wayne Edward Knabach
A Study Of Current Distribution, Resistance Losses, And Short Circuit Forces In A Transformer With A Low-Voltage Strip Winding, Wayne Edward Knabach
Electronic Theses and Dissertations
The main purpose of this study is to analyze the magnetic forces developed in a transformer using aluminum strip conductor when subjected to a fault at its output terminals. This would be the most severe fault situation possible. Very closely related to this problem is the considered of current distribution and losses in this type of conductor. Whenever current-carrying conductors are located in magnetic fields, forces will be developed which tend to cause movement of the conductors. These forces usually are negligible under normal rated conditions but become most severe under extreme “Short-circuit” conditions. At the present time, this author …
Indicators Of Achievement In College Physics, Michael D. Foss
Indicators Of Achievement In College Physics, Michael D. Foss
Electronic Theses and Dissertations
This study was made to investigate some factors which might indicate a student’s success in college physics. The researchers were interested in determining if the following factors were significant in predicting achievement in college physics. It was hoped that answers to some of the following questions would be forthcoming. 1) What percent of students taking college physics took high school physics? 2) Does high school physics contribute to success in college physics? 3) is the size of the high school a factor in determining success in college physics? 4) Can the grades received in Mathematics 16 or English 1 serve …
Power Radiation And Dissipation In The Conducting Medium Around A Small Loop Antenna, Chin-Cheng Lin
Power Radiation And Dissipation In The Conducting Medium Around A Small Loop Antenna, Chin-Cheng Lin
Electronic Theses and Dissertations
The aim of this thesis is to investigate the nature of the electromagnetic wave transmitted from a loop antenna enclosed by a spherical insulating cavity which is immersed in a conducting medium. The nature of the electromagnetic wave in a conducting medium generated by a loop antenna has been studied. Based on the formulas derived, a low frequency wave suffers less attenuation than a high frequency wave. This effect is very noticeable when the conductivity of the medium is high, such as with sea water. AT low frequencies the power radiation is small compared with the power supplied to the …
Button Welding For Structural Steel Connections, Lorys Juel Larson
Button Welding For Structural Steel Connections, Lorys Juel Larson
Electronic Theses and Dissertations
This thesis concerns the investigation of single button welded lap joints utilized to join two specimens of structural steel. More specifically, it reports on the static load-carrying capabilities of this type joint. The objectives of this study are: (1) to study the button welds produced by carbon0dioxide shielded metal arc welding equipment, (2) to determine the static strength of characteristics of button welds, (3) to determine whether these welds can be considered statistically reliable for structural applications. Research, in line with these objectives, was conducted in connection with the effect of the various electrical controls of the equipment on the …
A Brief Study Of The Present Merger Activity, J. Gale Chumley
A Brief Study Of The Present Merger Activity, J. Gale Chumley
Electronic Theses and Dissertations
No abstract provided.
Regression Analysis, John Leslie Juniker
Regression Analysis, John Leslie Juniker
Electronic Theses and Dissertations
No abstract provided.
Students' Conceptions Of Dietetics As A Major Field Of Study, Ella Maniza Moore
Students' Conceptions Of Dietetics As A Major Field Of Study, Ella Maniza Moore
Electronic Theses and Dissertations
No abstract provided.
The Use Of Linear Programming In The Economic Evaluation Of Oilrefining Operations / By Royes Salmon, Royes Salmon
The Use Of Linear Programming In The Economic Evaluation Of Oilrefining Operations / By Royes Salmon, Royes Salmon
Electronic Theses and Dissertations
No abstract provided.
The First Fifteen Years Of Southern Baptist Activity In Alaska, Richard Alvey Miller
The First Fifteen Years Of Southern Baptist Activity In Alaska, Richard Alvey Miller
Electronic Theses and Dissertations
No abstract provided.
Numerical Methods Of Matrix Inversion And Solutions Of Systems Of Linear Equations, Milton Henley Pittman
Numerical Methods Of Matrix Inversion And Solutions Of Systems Of Linear Equations, Milton Henley Pittman
Electronic Theses and Dissertations
No abstract provided.
Some Of The Properties Of The Laplace Transform, Charles Eugene Larson
Some Of The Properties Of The Laplace Transform, Charles Eugene Larson
Electronic Theses and Dissertations
No abstract provided.
Derivation Of The Equation For The Instantaneous Diffusion Current At The Cylindrical Drop Mercury Electrode, Prodromos Xenides
Derivation Of The Equation For The Instantaneous Diffusion Current At The Cylindrical Drop Mercury Electrode, Prodromos Xenides
Electronic Theses and Dissertations
The photographic method of analysis, introduced in 1922 by Professor J. Heyrovsky, is dependent upon electrolysis at the dropping electrode of the solution being analyzed. The method is based on interpreting current voltage curves that are obtained when solutions of electro reducible or electro oxidisable substances are electrolyzed in a cell in which one electrode consists of mercury falling drop-wise from a very fine capillary glass tube and the4 other electrodes is a pool of mercury. The circuit shown in Fig 1, is one used in the polarographic method of analysis. It consists of an accurate slide wire in which …
A Study Of The Organization And Administration Of Home Economics Teacher Education In The Central Region--With Implications For Improvement At South Dakota State College, Carol (Magney) Spomer
A Study Of The Organization And Administration Of Home Economics Teacher Education In The Central Region--With Implications For Improvement At South Dakota State College, Carol (Magney) Spomer
Electronic Theses and Dissertations
This study was conducted from the campus of South Dakota State College fo Agriculture and Mechanic Arts, Brookings, South Dakota, a land-grant institution for higher learning established in 1881. The six divisions of the college are: Agriculture, Engineering, Home Economics, Nursing, Pharmacy and Science and Applied Arts. Changes in certain policies and procedures of the Home Economics Education Department of South Dakota State College have been discussed. Some of the points under consideration were: the number of colleges and universities operating under the different systems and their reactions to the present one, the location of the home Economic Education Department. …
Measurement Of The Hydraulic Conductivity Above A Water Table In Situ, Anthony S. Dylla
Measurement Of The Hydraulic Conductivity Above A Water Table In Situ, Anthony S. Dylla
Electronic Theses and Dissertations
The physical property of soil which enables it to pass or conduct water through its macro-pores is known as its permeability. Permeability should not be confused with infiltration, which is the term for expressing the absorption of water into the soil. The infiltration rate is the rate at which water will enter the soil surface. The rate at which water moves through soil is called the hydraulic conductivity; whereas a measurement of this same rate is used to calculate the permeability. Hydraulic conductivity is most commonly expressed in the units of velocity, whereas permeability is expressed as the square of …