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Ground Water Management By Streambed Dams For The Upper Big Sioux River Basin, Lavene Ray Brenden
Ground Water Management By Streambed Dams For The Upper Big Sioux River Basin, Lavene Ray Brenden
Electronic Theses and Dissertations
The general objective of this research was to define the problems and to offer possible solutions associated with the development of a ground water management plan for the Upper Big Sioux River Basin. The investigation was primarily an evaluation of existing literature and data. The available information was collected and evaluated for the specific objectives: 1. Determination of the type of information that would be required for the development of an acceptable plan for ground water management in the basin. 2. Determination of the beneficial or adverse effects that may occur in the river basin as a result of raising …
An Electrical Standards Laboratory, Twyla Folk
An Electrical Standards Laboratory, Twyla Folk
Electronic Theses and Dissertations
The purpose of the research described in this thesis is to establish means of calibrating certain typical electrical equipment in order that a calibration laboratory may be initiated. The quantities to be considered are ac and dc voltages, and ac and dc current, resistance, and frequency.
Irregation Automation: A Systems Approach, Earl B. Hoekman
Irregation Automation: A Systems Approach, Earl B. Hoekman
Electronic Theses and Dissertations
This thesis defines areas in which the electrical engineer can assist in developing irrigation automation. Particular attention is given to a telemetry system for data transmission from soil moisture sensors. Present and future communication requirements in automated irrigation systems are also discussed.
A Multi-Item Inventory Model, Ramakrishnan Krishnan
A Multi-Item Inventory Model, Ramakrishnan Krishnan
Electronic Theses and Dissertations
During the last fifteen years there has been a rapid growth of interest in scientific inventory control; the use of mathematical models to obtain rules for operating inventory systems. The subject has attracted such wide interest that today every serious student in the Industrial Engineering and related fields is expected to have had some experience with inventory models. Originally, the development of inventory models had practical applications as an immediate objective. Today, inventory models are being developed at many different levels, ranging from the direct application in practical problems to the development of abstract mathematical models. The earliest derivation of …
Study Of An Automatic Sphygmomanometer System, James B. Morgan
Study Of An Automatic Sphygmomanometer System, James B. Morgan
Electronic Theses and Dissertations
A simple and dependable method of automatically measuring blood pressure indirectly would be of great help to the medical profession. An electronic system to implement the measurement of blood pressure using a double cuff method is presented. The scheme is to determine diastolic pressure from the amplitude of the difference signal obtained by subtracting the pulse wave observed in one cuff from that of the other, and to determine systolic pressure from the amplitude of the pulse wave observed in the cuff furthermost from the heart. Although the system is electronically practical, the results obtained from this system show that …
Study Of A 41.6 Kv Distribution System, Rene Meka Monneyang
Study Of A 41.6 Kv Distribution System, Rene Meka Monneyang
Electronic Theses and Dissertations
A load study is the determination of the voltage, current, power, and power factor at various points in an electric network under existing or contemplated conditions of normal operation. The following load study deals with the 41.6 KV distribution system of the City of Brookings, South Dakota. This system has recently been completed and placed in operation. Before installation of this system, the City of Brookings was served by a central steam generating plant operating at 4160 volts in a radial manner. When power became available from the USBR (United States Bureau of Reclamation), it was decided that it was …
Quality And Quanity Of Surface Runoff From A Cropland Area In South Dakota During 1970, Terry Allen Mccarl
Quality And Quanity Of Surface Runoff From A Cropland Area In South Dakota During 1970, Terry Allen Mccarl
Electronic Theses and Dissertations
In the past, pollution from agricultural sources has received far less attention than pollution from industrial and municipal sources. Point sources of agricultural pollution such as livestock confinement feeding operations have received more attention by researchers than the runoff from cultivated cropland. The 1967 Conservation Needs Inventory performed by the United States Government reported 1,438 million acres of non-federal rural land, including 437.6 million acres of cultivated cropland. Every year 500,000 acres of cropland are lost from productive use as cropland due to soil erosion. An average of one million acres of urban land and other built-up areas such as …
A Portable, Direct Drive Elevator System For Stage Productions, William Murphy Jones
A Portable, Direct Drive Elevator System For Stage Productions, William Murphy Jones
Electronic Theses and Dissertations
No abstract provided.
A Feasibility Model For Farm Supply Firm Mergers, Donald R. Schwartz
A Feasibility Model For Farm Supply Firm Mergers, Donald R. Schwartz
Electronic Theses and Dissertations
South Dakota is currently witnessing a revolutionary change in its elevator-farm supply industry. Technology applied in all phases of the industry -- production, processing, and distribution -- has had an impact upon the structure of the industry. Some of the changes taking place within the industry have been fostered by changes in other sectors of the economy. Employment opportunities and increasing wage rates have provided many marginal firm operators more favorable alternatives outside the elevator-farm supply business. Simultaneously, economic growth has encouraged new investments in larger grain handling and farm supply firms, thus hastening the adoption of technological developments. These …
Shrinkage Stresses In Soil-Cement Slab : Elastic And Viscoelastic Analysis / By Bal Krishan Sanan, Bal Krishan Sanan
Shrinkage Stresses In Soil-Cement Slab : Elastic And Viscoelastic Analysis / By Bal Krishan Sanan, Bal Krishan Sanan
Electronic Theses and Dissertations
No abstract provided.
Refractivity Of High Temperature Gases, Babulal Virji Gala
Refractivity Of High Temperature Gases, Babulal Virji Gala
Electronic Theses and Dissertations
No abstract provided.
An Investigation Of The Tripole Antenna, Michael George Harrison
An Investigation Of The Tripole Antenna, Michael George Harrison
Electronic Theses and Dissertations
No abstract provided.
The Effect Of Activity On Musical Preferences, Thomas Howard Bearden
The Effect Of Activity On Musical Preferences, Thomas Howard Bearden
Electronic Theses and Dissertations
No abstract provided.
The Chromapproach In Early Childhood Music Education, Martin William Fenerty
The Chromapproach In Early Childhood Music Education, Martin William Fenerty
Electronic Theses and Dissertations
No abstract provided.
The New Town Concept As A Possible Solution To Population Dispersal, James W. Darden
The New Town Concept As A Possible Solution To Population Dispersal, James W. Darden
Electronic Theses and Dissertations
No abstract provided.
A Middle Eocene Depositional Cycle In Central Mississippi, Stephen Guest Franks
A Middle Eocene Depositional Cycle In Central Mississippi, Stephen Guest Franks
Electronic Theses and Dissertations
No abstract provided.
Analysis Of A Balanced Microwave Mixer, Timothy James Murray
Analysis Of A Balanced Microwave Mixer, Timothy James Murray
Electronic Theses and Dissertations
No abstract provided.
A Study Of Zoning Performance Standards As A Method Of Pollutioncontrol / By Robert Clark Schroeder, Robert Clark Schroeder
A Study Of Zoning Performance Standards As A Method Of Pollutioncontrol / By Robert Clark Schroeder, Robert Clark Schroeder
Electronic Theses and Dissertations
No abstract provided.
Punishment Of Earlier Vs Later Members Of A Response Chain / By William M. Smith, William M. Smith
Punishment Of Earlier Vs Later Members Of A Response Chain / By William M. Smith, William M. Smith
Electronic Theses and Dissertations
No abstract provided.
Nutritional Adequacy And Acceptance By Students Of The Meals Served In Nine Sorority Houses At The University Of Mississippi, Quintilla Smith Williams
Nutritional Adequacy And Acceptance By Students Of The Meals Served In Nine Sorority Houses At The University Of Mississippi, Quintilla Smith Williams
Electronic Theses and Dissertations
No abstract provided.
Temperature And Concentration Dependence Of The N,N'-Diphenylformamidine And N,N'-Diphenylacetamidine And Related Compounds As Shown By Infrared Spectroscopy, Edward Mcsherry Williams
Temperature And Concentration Dependence Of The N,N'-Diphenylformamidine And N,N'-Diphenylacetamidine And Related Compounds As Shown By Infrared Spectroscopy, Edward Mcsherry Williams
Electronic Theses and Dissertations
No abstract provided.
Reflections On The Construction Of Thin Film Dielectric Mirrors, Martin Frederic Wehling
Reflections On The Construction Of Thin Film Dielectric Mirrors, Martin Frederic Wehling
Electronic Theses and Dissertations
No abstract provided.
Effect Of Ductility On Initiation And Spread Of Fracture In Solids, Tien Yu Hsieh
Effect Of Ductility On Initiation And Spread Of Fracture In Solids, Tien Yu Hsieh
Electronic Theses and Dissertations
The pioneer A. A. Griffith (1921), led by Inglis' idea (1913) of stress distribution around an elliptical void, set up the fundamental theory of rupture and flow in solids for the contemporary scientists in the field of fracture mechanics. Today his theory is the well known Griffith fracture criterion extensively used in investigation and explanation of fracture phenomena. Two of the recent researchers who contributed substan-tially to the field of fracture mechanics are I. N. Sneddon (1946) and R. Sack (1948). They have both derived expressions for the critical stress around a three dimensional penny-shaped crack. In addition, Sneddon found …
Effect Of Rhythmical Disturbances On Repetitive Assembly Work, Ranganatha Hemmige
Effect Of Rhythmical Disturbances On Repetitive Assembly Work, Ranganatha Hemmige
Electronic Theses and Dissertations
The field of industrial engineering has been traditionally based on the desire to produce more goods for less money. This goal has been accomplished by a variety of methods, including improved methods, monetary incentives, and nonmonetary incentives. In the modern industry all of these may be used. Studies to isolate the effects-of such types of incentives frequently, although not exclusively, have been conducted on highly repetitive tasks. This occurs for a number of reasons: 1. The simple task reduces the variability of the output both in quality and quantity. 2. Any given number of cycles will take less time since …
Scattering Parameters Of Vhf Semiconductor Devices, Young Dae Kim
Scattering Parameters Of Vhf Semiconductor Devices, Young Dae Kim
Electronic Theses and Dissertations
Since Campbell and Foster first used scattering parameters in studying the properties of ideal transformer networks, much work has been done with scattering parameters in the analysis of microwave circuits and general lumped parameter networks. An excellent summary for micro wave circuits appears in Montgomery Dicke, and Purcell. Application of scattering parameters to network synthesis was attempted by Oono and Yasuura. Youla also extended scattering parameter theory by complex normalization. He and Penfield5 later applied scattering parameters in analyzing negative resistance amplifiers in ·conjunction with the development of the tunnel diode. The rapid development of high-frequency technologies in the past …
Optimization Of A One-Story Two-Bay Steel Frame With Haunches By Linear Programming, Kenneth L. Loeschke
Optimization Of A One-Story Two-Bay Steel Frame With Haunches By Linear Programming, Kenneth L. Loeschke
Electronic Theses and Dissertations
The main objective of this investigation is to determine the optimum design variables which will minimize the weight of a structure, the number of variables was chosen to obtain a high degree of flexibility in design and to reduce linearization errors in the constraint equations. The linear equations used in the simplex method of analysis were approximated by applying Taylor's first order of expansion theorem to the nonlinear constraint equations and the objective function. This technique of approximation is known as the cutting plane method. After each optimization of the approximate linear equations by the simplex method, new coefficients for …
Mathematical Modelling Of A First Order Transducer, Vijaykumar S. Monie
Mathematical Modelling Of A First Order Transducer, Vijaykumar S. Monie
Electronic Theses and Dissertations
First chapter lays the ground work for this research paper. The problem is posed immediately, enabling the reader to gain a better appreciation of the material that follows. The next article explains the thought process that motivated this problem. This is followed by reviewing the available. literature in the field and on which the author has relied quite extensively. The chapter concludes by explaining the more common terminology which will be used frequently throughout the dissertation. Given a configuration of linear, passive network elements, termed filter, how faithful a reproduction of the input process is the process at the output …
Reliability Study Of A Modified Los Angeles Rattler Test, Joe H. Smith
Reliability Study Of A Modified Los Angeles Rattler Test, Joe H. Smith
Electronic Theses and Dissertations
The ever constant demand for more and better roads and concrete structures has forced the engineer to seek construction materials with better physical properties. Because of this demand, our nation's once vast supply of high quality, easily accessible natural resources is becoming depleted. One such natural resource is mineral aggregates. These mineral aggregates may be classified as the smaller rocks composed of one or more minerals. The money expended for the procurement and placement of mineral aggregates for highway use represents approximately one-fourth of the total highway cost. Because of this large amount of money spent annually for mineral aggregates, …
Signal Attenuation In V.H.F. Biotelemetry, John Schmelzer
Signal Attenuation In V.H.F. Biotelemetry, John Schmelzer
Electronic Theses and Dissertations
In this paper, the change in loop resistance is examined when the loop is placed at the center of a spherical air cavity which is in turn surrounded by a sphere of physiological saline solution, as shown. The functional dependence of the magnitude of the dissipation resistance on the cavity radius will be studied. The validity of introducing a dissipation resistance will be experimentally tested by immersing a loop in a physiological saline solution and directly measuring the change in resistance with an r.f. bridge. Once the increase in resistance is established, the resultant reduction in radiated power will be …
An Investigation Of The Pollutional Characteristics Of Runoff From Two Feedlots, Paul E. Thormodsgard
An Investigation Of The Pollutional Characteristics Of Runoff From Two Feedlots, Paul E. Thormodsgard
Electronic Theses and Dissertations
The need for runoff facilities at animal feeding operations has just been recognized in the past few years. Concern has been expressed by water pollution control officials in regard to the pollution potential of animal wastes. As a result, regulations to reduce pollution from feedlot sources are being formulated. South Dakota and several states are in the process of drawing up similar regulations. Unfortunately, these regulations are, in some cases, being formulated with limited evidence of the pollution resulting directly from animal feeding operations. A recent study conducted in the Big Sioux River basin in South Dakota indicted that feedlots …