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Dirichlet Series And Its Integral Representations / By William Lynn Townsend, William Lynn Townsend

Electronic Theses and Dissertations

No abstract provided.

Turning Proportional-Integral Controllers For Random Load Changes / By Mohinder Kumar Sood, Mohinder Kumar Sood

Electronic Theses and Dissertations

No abstract provided.

Application Of Formac Language In Hydrodynamic Stability Analysis Of A Conical Shock Layer / By Ming Keng Yang, Ming Keng Yang

Electronic Theses and Dissertations

No abstract provided.

Determination Of Complex Formation Constants By Frontal Chromatography / By Kuo-Ching Yu, Kuo-Ching Yu

Electronic Theses and Dissertations

No abstract provided.

Computer Simulation Of Unsteady Flow In An Alluvial Channel By The Method Of Characteristics, Dennis Lynn Richards

Electronic Theses and Dissertations

A number of dams have been constructed along alluvial rivers. These dams create reservoirs which serve to collect and store water, usually in large quantity, for use in supplying municipal needs, for supplying power and driving machinery, for furnishing irrigation, and for retaining the flow in time of floods. The characteristics of flow and the sediment-transport capacity of the channel change after these dams have been constructed. One of the major problems then confronting the hydraulic engineer is the rate of reservoir sedimentation and the change in river configuration. A problem of concern is the rapidity of reservoir sedimentation and …

Seasonal Movements And Behavior Of Ring-Necked Pheasants In Eastern South Dakota, Arthur V. Carter

Electronic Theses and Dissertations

Information was gathered on mobility, behavior, and related activities of pheasants from July 1966 to July 1968 by banding and/or marking 160 birds with backtags and radio transmitters. Food was readily available since the winters were mild with little snow. Birds moved less than 1/4 mile from roosting areas to cornfields and weed patches to feed. Numbers of birds dispersing from the study area in spring varied each of the years, but 60 to 70 remained there during the two reproductive seasons. Adult cocks traveled less than 1/4 mile when dispersing-and adult hens moved less than 1/2 mile. Movements by …

Effects Of Chick Stimuli And Dieldrin On Adoptive Behavior Of Penned Hen Pheasants, K. L. Cool

Electronic Theses and Dissertations

Studies to determine the effect of chick stimuli and dieldrin on adoptive behavior of penned hen pheasants were conducted in 1969 and 1970. Results indicated that whether caged hens saw or heard chicks had no effect on adoption or killing of chicks. Hens receiving sound stimuli and sight-and-sound stimuli from chicks responded similarly to hens receiving no stimuli. Sub-lethal doses of dieldrin also had no effect on chick adoption under the conditions of this study. Results demonstrated that non-incubating pheasant hens will adopt and brood orphan chicks. During the 2 years of the study, respectively, 37 and 49 percent of …

Phytoplankton Dynamics Of Two Northern Prairie Lakes And Possible Relations To Dissolved Nutrients, Alan B. Hauber

Electronic Theses and Dissertations

Phytoplankton populations in Enemy Swim Lake were observed to be quite different. Although these lakes lie within the same geographic area (Coteau des Prairies), major differences in water quality were recorded. The differences in water quality were reflected in the phytoplankton populations and appeared to be influenced by the agricultural practices on the watersheds. Enemy Swim Lake was basically a diatom lake while Lake Herman contained mostly blue-green algae. Genera of algae found in Enemy Swim Lake were: Anabaena, Aphanizomenon, Lyngbya, Pediastrum, Staurastrum, Dinobyron, Asterionella, Fragilaria, Melosira, Stephanodiscus, and Ceratium. All of the above genera occurred in Lake Herman except …

Population Dynamics Of The Mourning Dove In South Dakota, Leslie A. Rice

Electronic Theses and Dissertations

Mourning dove bandings in South Dakota totaled 44,842 from 1917 through 1970. Adult bandings totaled 44.4 percent of all bandings while immatures, juveniles, locals, and unknown age were 41.3, 0.8, 12.8, and 0.7 percent, respectively. Recoveries totaled 2.8 percent of the banded population, 2.5 percent from hunting and 0.5 percent from non-hunting. Annual mortality estimates of local (nestling) bandings from 1956-61 were between 54.4 and 64.5 percent. Subsequent adult mortality from local bandings was between 51.0 and 52.4 percent. Mean annuals mortality estimates of flying doves banded from 1964-69 were calculated using composite dynamic, composite time-specific, relative recovery rate, a …

Nutrient Transport In The Lake Poinsett System, Jack M. Skille

Electronic Theses and Dissertations

Concentrations and loads of nutrients transported through the Lake Poinsett system were monitored from April 1, 1970 to April 1, 1971. An annual 2.07x 10~ m3 surface discharge into Lake Poinsett transported 1.66 x 104 kg (PO4) phosphorus, 1.28 x 104 kg nitrate nitrogen, and 3.90 x 104 kg organic carbon. The Big Sioux River-Dry Lake system contributed 63% of the phosphorus, 45% of the nitrate nitrogen, and 43% of the organic carbon load. The remaining portion entered Lake Poinsett from the Lake Albert drainage. Of the annual load of nutrients transported into Lake Poinsett, 33% of the nitrate nitrogen …

A Clinico-Pathologic Study Of Botulism In Ring-Necked Pheasants, Hazel J. Shave

Electronic Theses and Dissertations

Toxins were produced from 6 strains of Cl. Botulinum, 2 of which killed pheasants. Inoculated birds were observed and a description of the progression of signs of the disease is given. Juvenile pheasants were inoculated with Types A and C toxin intramuscularly and were given the toxin orally. These birds were observed and their clinical signs noted. Adult pheasants were inoculated with toxoid prepared from type C toxin and commercial toxoid; injections were repeated in 21 days. Fourteen days following the final injection, the birds were challenged with toxin. Those protected with toxoid survived, while those receiving saline succumbed. Gross …

Macroscopic Benthos Populations And Taxonomy Of The Family Chironomidae In Lake Poinsett, South Dakota, Stephen B. Smith

Electronic Theses and Dissertations

Benthos samples were collected in Lake Poinsett, a highly eutrophic eastern South Dakota lake, from March 1970 through February 1971. The lake bottom was divided into three substrate types (sand, sand-sapropel mixture and sapropel) and the percent of each substrate type was calculated. Nineteen macroscopic genera were taken from ten sampling stations located throughout the lake. Descriptions are presented for organisms in this group. Diversity of organisms was greatest in the sand substrates, in that all 19 genera were collected. Chironomus spp. (Chironomus plomosus, Chironomus attenuates and six unidentified species) was the most abundant group of organisms and occurred most …

Speech Training And Speech Activities In Institutions Of Higher Education In Taiwan, Chang Yuh-Sheng

Electronic Theses and Dissertations

An M.A. thesis in speech on the status of speech training in Taiwan, China, is proposed. From personal experience, this author has discovered some difficulties which Chinese students meet when they take up speech in American universities. The chief reason for this might be that the Chinese students who study speech in American universities and colleges have a somewhat limited knowledge of the speech areas and an. inadequate background of speech training. Since speech courses are elective in most of the universities in Taiwan, the students' interest in participating in speech activities, such as speech contest and ·dramatic performance, has …

An Investigation Of The Extended Three-Dimensional Transportation Model, James Ronald Roskens

Electronic Theses and Dissertations

The three major costs generally associated with the process of transforming raw materials into marketable merchandise area

1. Raw material costs

2. Production costs

3. Distribution costs

Raw materials are the materials necessary to produce the finished product. They are the tangible substance from which the finished product is made. As such they may be purchased or shipped in from another plant. Raw material costs are the costs associated with obtaining these materials. The production cost is the cost associated with the conversion of the raw material into a finished product. It includes the cost of labor; the storage cost …

Bipedal Locomotion Structure With Passive Members, Roger D. Pavlis

Electronic Theses and Dissertations

The objective of the work presented in this thesis is to clarify the phenomenon of deterioration in settling of the solution when treating the system with passive members.

An Econometric Model Of The South Dakota Economy, Kirk Wray Rubida

Electronic Theses and Dissertations

The purpose of this study is to adapt and develop a methodology of practical statewide macroeconomic analysis that is an alternative to the construction of a statewide input-output econometric model. The three objectives of this study are: 1. To present an annual stochastic econometric model of the South Dakota economy which is an adaptation of Daniel B. Suits’ 1962 annual stochastic econometric model of the United States economy; 2. To demonstrate the model’s use as an effective instrument by which state economic performance can be forecast; 3. To begin exploration of the model’s implications for the economic impact which selected …

Finite-Difference Solution For Flow Over A Rough Porous Plate With Mass Transfer, Hwai-Way Wen

Electronic Theses and Dissertations

The study of flow over a plate with surface blowing or suction has become very important during recent years due to the increased interest in modifying the temperature or flow characteristics of the boundary layer. Many investigators have studied laminar and turbulent boundary layer flows over smooth surfaces; however, in practical applications, especially under high free stream velocity, the surface cannot be considered hydraulically smooth, and the fluid in turbulent rather than laminar. In this study, the numerical solution for turbulent flow over a rough porous plate with variable surface mass transfer is presented.

The Effect Of The Cross-Section On The Large Deflection Of A Non-Linearly Visco-Elastic Column, Mrutyunjaya Pani

Electronic Theses and Dissertations

No abstract provided.

The Transcendence Of The Number E, Frederick Charles Orton

Electronic Theses and Dissertations

No abstract provided.

A Study Of Printing Management Graduates Of South Dakota State University 1956 To 1970, Bruce Otto Oberlander

Electronic Theses and Dissertations

Between 1956 and 1970 a total of 125 students had earned either a Bachelor of Science degree, a Master of Science degree, or both, in printing management at South Dakota State University. One student was deceased, leaving 124 graduates of the printing management programs. The problem consisted of obtaining information concerning the attitudes of graduates toward the printing management program and the adequacy of their college preparation at South Dakota State University. Other information concerning the location, education, employment and income of the graduates was also sought as part of the study. The study had two major objectives. First, to …

The Effects Of Rapid Decompression On Total Plasma Phospholipids And Selected Hematological Parameters In Dogs, Lawrence J. Fortuna

Electronic Theses and Dissertations

The purpose of this project was twofold: (1) measure the change in total plasma phospholipids due to rapid decompression, and (2) measure the effects of rapid decompression on selected hematological parameters. An attempt has been made to show that an increase in phospholipids following rapid decompression does occur. This attempt was made to substantiate the Disseminated Intravascular Coagulation (DIC) Theory of the etiology of decompression sickness. (See more in text)

Effects Of Dieldrin On The Social Interactions Of Penned Pheasants And Chickens, Nancy Hayden Field

Electronic Theses and Dissertations

Studies to determine the effects of dieldrin on social hierarchy of pheasants and chickens were initiated in 1970. Social interactions were observed among groups of pheasant chicks, adult cock and hen pheasants and peck-order development among groups of young pheasants. To determine the effects of dieldrin on the pecking behavior of individual birds, pairs of pheasants and pairs of chickens were placed in a neutral cage. When patterns of dominance and subordination were consistent, dieldrin in capsules (4 mg to pheasants and 6 and 10 mg to chickens twice weekly) was given to one member of each pair and birds …

A Comparison Of Aspen And Pine Communities In The Northern Black Hills, Jeremiah J. Kranz

Electronic Theses and Dissertations

Three study areas, each containing an aspen (Populus tremuloides) community, a pine (Pinus ponderosa) community, and a mixed aspen-pine community, were studied during the summers of 1968, 1969, and 1970. Soil chemistry, plant chemistry, overstory density, understory production, and use by whitetail deer (Odocoileus virginianus) and cattle (Bos taurus) were determined for each community in each study. Pine and aspen communities of one study area were sampled for soil and plant chemistry. Soil phosphate and potassium levels were higher in the aspen community, while soil nitrates were higher in the pine community. Soil pH was similar to the two communities. …

Movements And Habitat Use By Hen Pheasants During Brood Rearing, Lynn E. Hanson

Electronic Theses and Dissertations

Land-use patterns characteristic of prime pheasant range in the Great Plains and prairie region have 50-75 percent of the land under cultivation according to Kimball et. al. (1956). Farmland is pheasant habitat, and the production of pheasants is therefore greatly influenced by farming practices. Considerable research has been done on rates of pheasant production, nest success, and cover preferences for nesting. However, little information has been obtained on movements and cover preferences for brood rearing. Most studies of the type of cover utilized by pheasant broods have been based on roadside and random field observations. Kozicky and Hendrickson (1951) carried …

Interpretive Potential Of South Dakota Wetlands, Douglas C. Harr

Electronic Theses and Dissertations

A study was initiated to devise a method for selecting prairie wetlands on which nature interpretation areas could be established. An evaluation form was designed to systematically identify areas of good potential and 64 prairie wetlands were evaluated. Twenty-two percent of the evaluated marshes were found to rank “excellent”: the method of evaluation was determined successful. A survey was initiated to determine visitor preferences for interpretive methods and facilities at an existing wildlife-interpretive trail. Seventy-nine percent of the visitors indicated preference for a self-guiding interpretive trail. Maps and pictures used in conjunction with self-guiding signs were deemed important. Ninety-one percent …

An Investigation Of The Effects Of Instantaneous Jockeying In Queues By Simulation, B. Radindranath

Electronic Theses and Dissertations

In today's world, waiting lines formed by people, machines and other types of units are commonplace. Queues form whenever the current demand for a service exceeds the current capacity to provide that service. In many cases, the interarrival times or service times are not constants, but involve distributions from which the values occur randomly.

A waiting line causes concern when there is an economic value associated with it. A waiting line may have a negative monetary value if units leave without service, or if units have costs as they wait. Idle service facilities may also have a negative monetary value …

The History Of Intercollegiate Athletics At Northwestern College, Richard Wayne Vander Berg

Electronic Theses and Dissertations

Historical studies in athletics typically present which confronted coaches and athletic directors in the past. Such studies could be of importance in planning future programs of athletics. “The problem facing education today is the result of a long historical evolution. A vision of the future depends on the understanding and intelligent interpretation of the past.” The data collected and presented in this study should be of interest and value to individuals in the Health, Physical Education and Recreation Department, to Alumni, and to all people interested in the intercollegiate athletic program at Northwestern College, Orange City, Iowa. Members of the …

The Chemistry Of Some Unusual Carbodiimides, Donald Melvin Plautz

Electronic Theses and Dissertations

Several N¹-alkyl-N²-(N,N-dialkylamino)carbodiimides, which were found to form dimeric species, were prepared, and the structure of the dimeric species determined. A study of the reaction chemistry of both the monomeric and dimeric carbodiimides led to the conclusion that dimerization occurred via a (π2s + π2a) ground-state, symmetry-allowed mechanism, and that thermal decomposition of the dimeric species occurred via a (π2s +-π2s) excited-state, symmetry-allowed mechanism. Although dialkylphosphoramidates have been shown to be useful intermediates in the preparation of unsaturated organic nitrogen compounds, N-acyl- and N-imino-dialkylphosphorohydrazidates were found to be too unstable, forming trialkylphosphates upon distillation, to be of …

Food Habits Of Black Crappies, White Crappies, Yellow Perch And White Suckers In A Small Impoundment In Northeastern South Dakota, Dennis Unkenholz

Electronic Theses and Dissertations

Crustaceans, aquatic insects and fish were the most important food items found in stomach samples. Black crappies depended on zooplankton and aquatic insects as their major food source as they occurred in all samples and were major food items in 70 percent and 40 percent respectively. Insects, zooplankton and fish were the major food items of white crappies. Insects were the dominant forage present in 54 percent of the samples while zooplankton and fish were dominant in 36 percent and 21 percent of the samples respectively. Perch relied on crayfish, fish and aquatic insects as their major food source. Aquatic …

Nonlinear System Identification Using An Analog Technique, G. N. Govindan

Electronic Theses and Dissertations

The prime purpose of this thesis project is to investigate and to implement Kohr's method. Kohr's method of identification was selected for study mainly because of the easy accessibility of the analog computer, in addition to the other advantages mentioned above. In this thesis the method of Kohr is shown to apply to the identification of single-valued nonlinearities. However, it is also shown in the work to follow that the method does not apply, in general, to double-valued nonlinearities. Further, an extension of this method is developed herein which enables the determination of system order. A number of examples illustrating …