Life Sciences Commons^™

The Journal Of Undergraduate Research: Volume 03

The Journal of Undergraduate Research

This is the complete issue of the South Dakota State University Journal of Undergraduate Research, Volume 3.

Recommended Strategies For Odor Control In Confinement Beef Cattle Operations, Kent Tjardes, Alvaro Garcia, Hans Stein, Charles Ullery, Stephen Pohl, Christopher Schmit

SDSU Extension Special Series

Odors coming off a beef feeding operation are generated from three different sources: the feedlot facility, waste storage, and the land where the manure is applied. In some operations, the feedlot facility may also serve as the primary waste storage area. To reduce the total amount of odor generated from a beef feeding operation, odor generation and emission by each of these three sources needs to be reduced.

Discharge Measurement And Energy Efficiency Evaluation Of Irrigation Pumping Plants, Bruce A. Jennings

Electronic Theses and Dissertations

No information has been available regarding efficiencies of electric irrigation pumping plants in South Dakota. Pumping plant discharge, a key parameter in the calculation of pumping plant efficiency, is often difficult to measure in the field. A project was initiated at South Dakota State University in 1976 to investigate field pumping plant efficiencies. The following objectives were established for the project. 1. To investigate various methods of measuring irrigation pumping plant discharge. 2. To develop a suitable field procedure for determining electric irrigation pumping plant efficiency. 3. To measure energy efficiency of selected electric irrigation pumping plants in South Dakota.

Performance Of A Diurnally Tracking Solar Energy-Intensifier, Calvin E. Siegel

Electronic Theses and Dissertations

The United States agricultural system provides numerous opportunities in which solar energy can be utilized. Low to moderate temperature rise collectors can provide a large percentage of the energy requirements normally met by using high quality fossil fuels. As world demand for food production increases due to a growing population, alternative sources of energy need to be developed and applied as substitutes for these increasingly scarce fossil fuels. Agriculture offers practical advantages for the use of solar heat energy because there exists sufficient area for solar collectors and a wide range of temperature applications on most farmsteads. Demand for energy …

Drip And Sprinkler Irrigation Of Carrots And Onions, James D. Melstad

Electronic Theses and Dissertations

Many specialty crops, especially vegetables, are shallow rooted and sensitive to periods of moisture stress. This makes irrigation of vegetables necessary to their production in South Dakota since summer rainfall is normally both inadequate and undependable. A study was initiated in conjunction with the South Dakota Agricultural Experiment Station and the Water Resources Institute to evaluate irrigation of specialty crops in eastern South Dakota. Drop and sprinkler irrigation were utilized for the irrigation of two specialty crops presently grown in South Dakota, carrots and onions. The study was initiated with the following objectives: 1. To compare carrots and onion yields …

The First 50 Years: Agricultural Engineering, Henry H. Delong

Agricultural and Biosystems Engineering Publications

This is a history of the first 50 years (1925-1975) of the Department of Agricultural and Biosystems Engineering at South Dakota State University, including lists of departmental projects and faculty members.

Chapter I: Introduction
Chapter II: The Beginning of Our Department
Chapter III: Progress in the 40's
Chapter IV: The Growth Picture of the 50's
Chapter V: The Expanding 60's
Chapter VI: The Unique Project of Rammed Earth Construction
Chapter VII: Agricultural Extension Work by the Agricultural Engineers
Chapter VIII: Ag Engineers Take Part in Experiment Station

Integrated Numerical Simulation Of Drip Irrigation With Subsurface Drainage, James Ray Hoover

Electronic Theses and Dissertations

A numerical method and model were developed to simulate soil moisture during steady-state and transient flow toward a tile drain. Intermittent application of water by drip irrigation and rainfall were simulated by use of finite difference approximation equations. No known analytical solution for these flow situations exists because of the complex mathematics describing unsaturated flow in the soil. The computer model is based on the electrical resistance network analog. The explicit finite difference equations were solved by the successive over-relaxation method for steady-state flow and by iteration for transient soil moisture flow. The computer program for the model consists of …

Evaluation Of Bi-Level Drainage Theory With A Viscous-Flow Analog, James Marfred Kienholz

Electronic Theses and Dissertations

The primary purpose of this study is to evaluate the validity of this bi-level theory with a viscous-flow analog. Viscous-flow analogs have been used by many investigators in the past to evaluate analytical solution to drainage problems (Bear, 1972). The objectives of this study are: 1. Design and construct a viscous-flow analog for laboratory and classroom use, 2. Test the reliability of existing bi-level drainage theory with the analog, and 3. Provide design data for use in the solution of bi-level drainage problems. The bi-level drainage theory will be graphically presented for design purposes provided the theory is shown to …

The Role Of Rainfall Impact And Surface Flow In Soil Detachment And Transport, Robert Alan Young

Electronic Theses and Dissertations

Soil erosion caused by rainfall is a very complex physical process. To evaluate the mechanism of erosion so that an assessment can be made of the extent to which it may be controlled necessarily begins with an understanding of the basic fundamental factors involved. The purpose of this study involves the development of an insight of the relative importance of the roles played by various contributors to the erosion process. Particular emphasis is placed on the contribution of rainfall detached soil to total soil loss. Three soil types, Barnes loam, Crofton silt loam and Central sandy loam, were prepared with …

An Incrementally Distributed Mathematical Model Of A Watershed, Charles Arnold Onstad

Electronic Theses and Dissertations

The utilization of distributed input parameters enables hydrologists to more adequately cope with watershed management problems. A distributed system aids in evaluating alternative solutions designed to alleviate a problem situation. As a result, the objectives of this study were (1) to develop a hydrological framework delineating the surf ace configuration of a watershed to consider parameter distribution; (2) to develop a model of hydrologic performance of a watershed using existing techniques and amenable to the physical framework; and (3) to demonstrate the versatility of the model using hypothetical data. The model versatility was demonstrated by showing the effects of different …

Minimum Construction Requirements For New Dwellings Located In The Northern California District, Federal Housing Administration

Rammed Earth Collection

No abstract provided.

Rammed Earth Walls For Farm Building (Revised April 1938), Agricultural Experiment Station, South Dakota State College

Rammed Earth Collection

This is the second edition of Experiment Station Bulletin 277-1933, slightly revised and containing a supplement of results and progress up to 1938 that was not reported in Experiment Station Bulletin 298 published in 1936 and entitled "The Relation of Colloids in Soil to Its Favorable Use in Pise or Rammed Earth Walls."

Rammed Earth Walls For Buildings, U.S. Department Of Agriculture

Rammed Earth Collection

Earth has been used for building dwellings from time immemorial. One method of use, superior to others, and which was known to the Romans has been preserved by tradition .t o modern times. This method consists of ramming slightly moist, specially selected earth, without the addition of straw or other material, between movable forms, and is known by itsFrench name, " pise de terre," which means "rammed earth." Pise de terre is a reliable building material when properly handled and is admirably adapted to structures on farms distant from transport routes. Little information has been published on rammed earth in …