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Corn Desiccation As A Means Of Reducing Drying Cost, Steven Earl De Hoogh Jan 1976

Corn Desiccation As A Means Of Reducing Drying Cost, Steven Earl De Hoogh

Electronic Theses and Dissertations

A dramatic increase in the cost of petroleum and an awareness that petroleum supply is limited has occurred during the past few years. The increased cost of petroleum products has increased farmers’ production costs. Furthermore, the limited supply of petroleum products has focused attention on ways of conserving energy. Researchers are looking for ways to harness “new” forms of energy and to make them available to consumers as a reasonable cost. Solar energy is one of the “new” forms of energy that is being studies extensively. Solar heaters are being evaluated to supplement conventional corn dryers. Nevertheless, solar drying is …

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Feasibility Of Establishing A Commuter Airline System In South Dakota, Thomas C. Hruby Jan 1976

Feasibility Of Establishing A Commuter Airline System In South Dakota, Thomas C. Hruby

Electronic Theses and Dissertations

The goal of this research was to evaluate the feasibility of establishing a commuter airline system in South Dakota. Specific research objectives were: 1. To describe in detail the growth and characteristics of the commuter industry in the United States and relate the national experience to the feasibility of a commuter system in South Dakota. 2. To evaluate the technical, economic, and airport facility issues that would affect commuter feasibility in South Dakota. 3. To evaluate the attitudes and opinions of interested groups in potential commuter service points in South Dakota as they relate to commuter feasibility. 4. To conclude …

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Building Geometry And Wind Effects On Model Open-Front Building Ventilation, Anthony J. Koenig Jan 1976

Building Geometry And Wind Effects On Model Open-Front Building Ventilation, Anthony J. Koenig

Electronic Theses and Dissertations

Many variations of building geometries and natural ventilation designs are currently being produced and marketed for cold confinement beef structures. Since these buildings are widely used and ventilation problems are evident, research was conducted with the following objectives: 1. Determine the effect of model configuration, wild direction and ventilation panel opening on ventilation characteristics (ridge vent flow and temperature difference) in three model, open-front beef buildings. 2. Develop prediction equations for the relationships between ventilation characteristics and climatic conditions. 3 Compare ventilation system performance in three, open-front model buildings.

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Investigations Of Heat-Labile And Heat-Stable Enterotoxins Produced By Escherichia Coli Isolated From Naturally Occurring Bovine Colibacillosis, Judy Carol Kienholz Jan 1976

Investigations Of Heat-Labile And Heat-Stable Enterotoxins Produced By Escherichia Coli Isolated From Naturally Occurring Bovine Colibacillosis, Judy Carol Kienholz

Electronic Theses and Dissertations

Colibacillosis (CB) is a collective term which has been used to describe a group of diseases cause by the gram negative bacillus Escherichia coli. The disease affects neonatal calves, lambs, and piglets, weaned pigs and poultry. Certain E. coli also cause a diarrheal disease in human adults and infants. The research reported herein includes examination of 37 bovine E. coli strains to determine entero pathogenicity and the reliability of different assay methods, characterization of bovine LT ad comparison of bovine LT with porcine LT, comparison of three culture media to determine which one provides maximum ST production, and partial purification …

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Physiological Responses And Thermal Comfort Of Subjects In A Tractor Cab, Kenton Richard Kaufman Jan 1976

Physiological Responses And Thermal Comfort Of Subjects In A Tractor Cab, Kenton Richard Kaufman

Electronic Theses and Dissertations

P.O. Fanger of Denmark was the first scientist to generalize the physiological basis for predicting human thermal comfort based on activity level, clothing type, air temperature, air velocity, mean radiant temperature, and air humidity. Thus any activity level and clothing type, it is possible to determine combinations of air temperature, mean radiant temperature, air humidity and relative air velocity which would produce optimum thermal comfort. The Fanger approach has been applied successfully to offices and buildings. It would be quite useful to demonstrate that Fanger’s concepts could be applied to tractor cabs. The objectives of this study were as follows: …

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Preparation And Reactions Of 1, 5-Bis (P-Substituted Phenyl) Octahydro-3, 7-Disubstituted-1, 5-Diazocines, Roy R. Odle Jan 1976

Preparation And Reactions Of 1, 5-Bis (P-Substituted Phenyl) Octahydro-3, 7-Disubstituted-1, 5-Diazocines, Roy R. Odle

Electronic Theses and Dissertations

The purpose of this research was to synthesize and study the reactions of 1,5-bis-(p-substituted phenyl)octahydro-3, 7-disubstituted-1, 5-diazocines. The compounds were to be used in attempts to prepare the diene(1) and also to help understand the mechanism of ring contractions to give substituted piperazines as shown in Figure2.

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Investigation On Several Aspects Of The Epidemiology And Control Of Wheat Scab, Dale E. Miller Jan 1976

Investigation On Several Aspects Of The Epidemiology And Control Of Wheat Scab, Dale E. Miller

Electronic Theses and Dissertations

The distribution of wheat scap is worldwide; in the U.S. the disease is the most prevalent in the central and eastern regions. The fungus attacks both spring and winter wheat, as well as many other Gramineous plants, including barley, oats, rice and some wild grasses. Among dicotyledon plants, the fungus causes root and crown disease of pea and carnation. With more wheat acreage each year, a build-up of the pathogen population is likely, and therefore pose a greater problem in the future. Today’s use of cultural practices that leave large amounts of surface residue in the fields may provide the …

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Prediction Of Efficient Player Combinations Among Members Of The South Dakota State University Women's Basketball Squad, Maren Elaine Michaelson Jan 1976

Prediction Of Efficient Player Combinations Among Members Of The South Dakota State University Women's Basketball Squad, Maren Elaine Michaelson

Electronic Theses and Dissertations

The purpose of this study was to determine whether performance by individual members of the South Dakota State University Women’s Basketball Team on the Knox Basketball skills test, could be used to predict scores they received through the use of the Keller Efficiency Rating System while a member of various player combinations under game conditions.

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Urban Land Use Inventorying With Small Scale Aerial Photography, Thomas R. Loveland Jan 1976

Urban Land Use Inventorying With Small Scale Aerial Photography, Thomas R. Loveland

Electronic Theses and Dissertations

The underlying aim of this thesis is to show that small scale NASA aerial photography is a valuable planning tool through which urban planners can extract the accurate land use information necessary to their planning and decision making processes. This aim will be achieved through an examination of the following points: 1. The utility of the aerial photography to urban planners possessing little photo interpretation experience or sophisticated equipment for the extraction of information. 2 The accuracy and suitability of the land use information obtained from the interpretation to the urban planning process. 3. The availability of NASA high altitude …

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Dormancy In The Seed Of Western Wheatgrass (Agropyron Smithii, Rydb.), Quentin E. Schultz Jan 1976

Dormancy In The Seed Of Western Wheatgrass (Agropyron Smithii, Rydb.), Quentin E. Schultz

Electronic Theses and Dissertations

As is the case with many of the native grass species, western wheatgrass can at times possess a high amount of seed dormancy. This dormancy makes the determination of pure live seed difficult. Consequently, laboratory methods have been sought to completely break this dormancy in order to obtain a true determination of seed viability. Such methods as embryo excision, lemma and plea removal, caryopsis clipping, alternating temperatures, and others have been used with varying success. The method now employed by the South Dakota State Seed Laboratory to determine the viability of ungerminated grass seeds is the tetrazolium test. After the …

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Suitability Of Lagoon Effluent For Irrigation In South Dakota, Allen F. Schmit Jan 1976

Suitability Of Lagoon Effluent For Irrigation In South Dakota, Allen F. Schmit

Electronic Theses and Dissertations

In order to classify the water quality of all lagoons on the basis of existing data, a relationship between the water quality of the municipal water supply and the water quality in the lagoon was established. The objectives of this study have been established as follows: 1. To evaluate and classify lagoon effluents with respect to their suitability for irrigation, and 2. To establish a method of determining the probable water quality in the lagoons on the basis of the water quality of the municipal water supply.

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Edge Detection And Adjacency Classification In Digital Data Via The Gradient Vector, Michael John Russell Jan 1976

Edge Detection And Adjacency Classification In Digital Data Via The Gradient Vector, Michael John Russell

Electronic Theses and Dissertations

Detection of edges in imagery represented by the matrix of data and classification of the data surrounded by an edge are investigated. An edge detection algorithm is developed and used to locate edges in digitized imagery. An algorithm called the adjacency classifier is developed to classify all groups in adjacent data points that are surrounded by edges. These two algorithms incorporate three important characteristics of the gradient vector: high gradients are inherent at edges, low gradients are inherent at edges, low gradients are inherent within homogeneous objects and gradient vector directions are perpendicular to the edge direction. Computer programs which …

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Three-Dimensional Ultrastructure Determination Of Wheat Streak Mosaic Virus Pin Wheel Inclusion Bodies Through The Use Of Analytic Geometry, And High Resolution Electron Microscopy And Signal Analysis And Dissemination Equipment Studies Of Ultrastructure, Raymond Leroy Mernaugh Jan 1976

Three-Dimensional Ultrastructure Determination Of Wheat Streak Mosaic Virus Pin Wheel Inclusion Bodies Through The Use Of Analytic Geometry, And High Resolution Electron Microscopy And Signal Analysis And Dissemination Equipment Studies Of Ultrastructure, Raymond Leroy Mernaugh

Electronic Theses and Dissertations

This study was undertaken for several reasons. The primary reason for the study was to determine the three-dimensional shape of the viral pin wheel inclusion in order to confirm or deny the three-dimensional structures put forth by Edwardson (15), Andrews and Shalla (1); or to establish another different pin wheel inclusion three-dimensional shape yet undescribed in previous literature. A secondary reason for the study lies in the fact that if this technique described in this paper was deemed acceptable, it could be employed to determine quickly, from two-dimensional electron micrographs, the three-dimensional ultrastructural shapes of many features seen in electron …

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The Nutritive Value Of High Protein Oats, Double Mutant, Waxy, Opaque-2 And Normal Corns In Pig Starter Diets, Steven L. Robbins Jan 1976

The Nutritive Value Of High Protein Oats, Double Mutant, Waxy, Opaque-2 And Normal Corns In Pig Starter Diets, Steven L. Robbins

Electronic Theses and Dissertations

The value of the mutant corns has been demonstrated in their ability to support superior performance of animals consuming them and in the need for less supplemental protein in diets containing he corns. Research conducted at South Dakota University showed that oats can constitute 60% of the grain portion of growing and finishing swine diets with less supplemental protein and no reduction in pig performance. The purpose of the research reported herein was to study the value of high protein oats in pig starter diets as well as availability of lysine in the grain. The inclusion of opaque-2, double mutant …

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Leg Power As Affected By Selected Weight Training Exercises And Forced-Stretch Training, James P. Thorson Jan 1976

Leg Power As Affected By Selected Weight Training Exercises And Forced-Stretch Training, James P. Thorson

Electronic Theses and Dissertations

Many athletes score well on strength tests but cannot throw or jump proportional distances. In other words, they are unable to produce the power necessary for explosive-type events. There appears to be a gap in training techniques concerning the relationship between strength and power. Zanon has attempted to bridge this gap through his description of exercises which utilize the concept that muscles contract with greater force if this contraction in preceded by forced-stretching of leg with hip extensor muscles. At present, research relative to use of forced-stretch training exercises are used for long jumpers ad triple jumpers, underlying principles are …

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Water Quality Management Study For The Big Sioux River Basin, Thomas L. Thelen Jan 1976

Water Quality Management Study For The Big Sioux River Basin, Thomas L. Thelen

Electronic Theses and Dissertations

This paper deals with the development of a water quality management strategy for the Big Sioux Basin located in eastern South Dakota. The first step in the development of a strategy is the collection and review of all available literature and data for the basin. From this information a physical description of the basin with regard to location, geology, climate, and hydrology can be made. Also, information on the history, population, economy and development of the basin should be included. Comparisons of available surface water quality data of the basin to existing surface water quality standards should be, made to …

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The Program Preferences And Demographics Of Subscribers To The South Dakota Public Television Network Program Guide, Vicki A. Welch Jan 1976

The Program Preferences And Demographics Of Subscribers To The South Dakota Public Television Network Program Guide, Vicki A. Welch

Electronic Theses and Dissertations

The main objectives of this study are focused on learning more about South Dakota’s public television viewers. Statistics released by the corporation for Public Broadcasting provide a profile of public television households. This research shows that the probability of a household tuning to public television increases as the age and education of the head of the household increase. The study also indicates that people employed in professional or “white collar) jobs are more likely to view public television. In addition, women are more likely to be viewers than are men. Knowing how South Dakotans compare with this profile will aid …

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Mathematical Models Of Postweaning Growth, Feed Intake And Carcass Composition Of Beef Cattle, Hoon Song Jan 1976

Mathematical Models Of Postweaning Growth, Feed Intake And Carcass Composition Of Beef Cattle, Hoon Song

Electronic Theses and Dissertations

A computer model was developed to evaluate the energetic efficiency of postweaning beef production of various biological types of cattle fed rations with different energy densities. In Section I, a mathematical model was developed to estimate voluntary feed intake for growing cattle from weaning to slaughter. The mathematical model included effects of differences in energy density and crude fiber content of the ration and in breed and degree of maturity of cattle on feed intake. When gastrointestinal tract distension controlled feed consumption, the primary factors determining feed intake were (1) rate of excretion of digesta, (2) rate of digestion, (3) …

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Social-Structural Effects On The Adoption Of The Snowmobile As A Recreational Innovation, Sandra H. Ramynke Jan 1976

Social-Structural Effects On The Adoption Of The Snowmobile As A Recreational Innovation, Sandra H. Ramynke

Electronic Theses and Dissertations

Social structural factors and individual characteristics related to innovativeness were studied in a random sample of 402 South Dakota owners of registered snowmobiles. Data collection employed a mailed questionnaire. The objectives of the study were to determine: (1) Which, if any, sociopsychological and sociodemographic individual characteristics explain variations in innovativeness with regard to purchasing of snowmobiles; (2) Whether community norm as a structural effect contributes to the explanation of variations in snowmobiler innovativeness when individual characteristics of adoptors are partialed out or controlled; and, (3) Whether the general contours of the adoption-diffusion model may be extended to the area of …

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Large Deflection Analysis Of A Viscoelastic Plate Under Normal Pressure Using The Finite Element Method, Murari Lal Jan 1976

Large Deflection Analysis Of A Viscoelastic Plate Under Normal Pressure Using The Finite Element Method, Murari Lal

Electronic Theses and Dissertations

No abstract provided.

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The American Naval Presence In The Indian Ocean, John Daryle Bridges Jan 1976

The American Naval Presence In The Indian Ocean, John Daryle Bridges

Electronic Theses and Dissertations

No abstract provided.

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Key To Microscopic Fragments Of Plant Tissue In Prairie Dog Stomachs And Food Habits Of Prairie Dogs In South Dakota, Carol A. Summers Jan 1976

Key To Microscopic Fragments Of Plant Tissue In Prairie Dog Stomachs And Food Habits Of Prairie Dogs In South Dakota, Carol A. Summers

Electronic Theses and Dissertations

The purpose of this study was to (1) develop a reference collection and construct a key of plants occurring on prairie dog towns in southwest South Dakota; (2) determine plant species eaten by prairie dogs by analyzing stomach and pellet samples; and (3) relate the availability of plant species and preference in the feeding habits of prairie dogs. Two prairie dog towns of different vegetation were studied. Four burrows in each of two vegetative types for each town were randomly selected. Prairie dogs and pellet samples were collected from these burrows; plant cover was measured in four concentric circles for …

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Effects Of P.L. 566 Stream Channelization On Wetlands In The Prairie Pothole Region, Ronald E. Erickson Jan 1976

Effects Of P.L. 566 Stream Channelization On Wetlands In The Prairie Pothole Region, Ronald E. Erickson

Electronic Theses and Dissertations

The Wild Rice Creek Watershed project, in North and South Dakota was constructed under authority of the Small Watershed Protection and Flood Prevention Act (P.L. 83-566 as amended). Structural measures included 24.7 miles of channelization and four floodwater retarding dams. To measure the degree that channelization influenced drainage of prairie wetlands, drainage rates in a channelized tributary were compared to rates in an unchannelized tributary of Wild Rice Creek. Channelization had a direct impact on wetlands by channel drainage reduction of overbank flows, and by providing drainage outlets. Indirect (secondary) wetland losses are believed to have occurred outside of the …

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Population Status Of Beaver On The Free-Running Missouri River In Southeastern South Dakota, Robert J. Vanden Berge Jan 1976

Population Status Of Beaver On The Free-Running Missouri River In Southeastern South Dakota, Robert J. Vanden Berge

Electronic Theses and Dissertations

One hundred sixty two beaver (Castor canadensis) harvested by trappers from the free-running Missouri River in southeastern South Dakota were examined from fall 1974 to spring 1976. Ninety two were males and 70 were females (131:100 sex ratio). Age specific sex ratios were not significantly different (P >0.05) from a 1:1 ratio for all age classes. The age structure of the sample was 69:26:45:15:4:3 for age classes zero through five, respectively. Minimum breeding age for female beaver was 2.5 years. Seventy-eight percent of all females (>2.5 years old) collected after the breeding season contained corpora lutea and viable fetuses. …

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A Study Of Milk Composition In South Dakota, Jeng-Jung Yee Jan 1976

A Study Of Milk Composition In South Dakota, Jeng-Jung Yee

Electronic Theses and Dissertations

The composition of cow's milk, including both the fat and solids-not-fat (SNF) content, is known to vary over rather broad ranges. Breed and individuality of the cow are the major factors influencing this, but many other factors are known to exert their influence. However, it has generally been observed that compensation or complementing occurs when the milk of cows is mixed together; so that the composition of milk from a herd will tend toward averages or norms. This effect usually is even more marked as the milk from two or more herds is commingled. Payment for milk on the basis …

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Effect Of Bifenox Applications On Spring Wheat, James Behm Jan 1976

Effect Of Bifenox Applications On Spring Wheat, James Behm

Electronic Theses and Dissertations

Each year over 5 million acres of South Dakota’s small grain crop are infested with weeds. Annual broadleaf weeds can reduce small grain yields from 30% to 50%. Weeds compete with crop plants for moisture, nutrients, and light. Blackman and Templeman report that small grains are most sensitive to competition in their early growth stages. However, vigorous, well-nourished cereal crops suppress weed growth. Therefore, early removal of weeds with herbicides should allow for a greater yield response. Additional advantages of preemergence and early post-emergence herbicide applications are less risk of damage from spray drift and reduced mechanical injury to crop …

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Development Of An Inventory To Measure Attitudes Of Adolescents Toward The Elderly, Julie A. Gullickson Jan 1976

Development Of An Inventory To Measure Attitudes Of Adolescents Toward The Elderly, Julie A. Gullickson

Electronic Theses and Dissertations

The initial intent of the study was to measure adolescent attitudes toward the elderly by using an inventory that had previously been developed by authorities in the field. As a result of clarifying attitudes toward the elderly, innovative and successful classroom experiences to change any negative attitudes toward the aged could be developed. No satisfactory inventory could be found. For this reason the purpose of this study was to develop an inventory to measure attitudes of adolescents toward the elderly. An inventory of this type would help teachers to determine the feelings of students about people who are in the …

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Nutritional And Cultural Aspects Of Fifth Grade Dietaries, Janice R. Jensen Jan 1976

Nutritional And Cultural Aspects Of Fifth Grade Dietaries, Janice R. Jensen

Electronic Theses and Dissertations

Sixty Brookings, South Dakota students in three schools participated in a group interview, week-long nutrition study designed to determine the pattern and quantity of their dietary intakes. The nutritional adequacies of the diets were determined. Comparisons were made between the student’s dietaries in the different schools and days of the week, family incomes, and levels of mother’s education. Special attention was given to lunch patterns and consumption of vitamins A and C. Using the recommended Dietary Allowance (RDA) as a standard for comparison, less than 25 percent of the students were below the standard for protein, riboflavin, calcium and vitamin …

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The Effect Of Various Root Characteristics On Root-Pulling Resistance Of 44 Inbred Lines Of Corn, John R. Jenison Jan 1976

The Effect Of Various Root Characteristics On Root-Pulling Resistance Of 44 Inbred Lines Of Corn, John R. Jenison

Electronic Theses and Dissertations

The purposes of this study were to determine (1) the range of root-pulling resistance that exists among inbred lines, (2) the repeatability of root-pulling measurements as well as other root characteristics in differing environmental conditions, and (3) the relationship between root pulling resistance and root characteristics such as root spread, root dry weight, root abundance, and root rot resistance.

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An Evaluation Of Football Injuries In South Dakota High Schools During The 1975 Season, Micheal George Keough Jan 1976

An Evaluation Of Football Injuries In South Dakota High Schools During The 1975 Season, Micheal George Keough

Electronic Theses and Dissertations

The purpose of this study was to determine the number, location, cause, and frequency of occurrence of football injuries that occurred during the1975 season in South Dakota high schools. An assessment of time-loss due to injury and the extent of medical supervision and care was also included. A second problem was to analyze the data and to formulate recommendations for the improvement of injury prevention and treatment programs.

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