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Quantitative Chemical Analysis of the Soils of Erath County, Texas (open access)

Quantitative Chemical Analysis of the Soils of Erath County, Texas

A chemical analysis of representative samples of Windthorst sand, Denton sand, and Denton clay has been made, and this analysis shows that their composition has a strict correlation with respect to their geological origins. The analyses of the different soils have shown the Windthorst sand to be highly deficient in all of the essential elements, whereas the Denton sand is deficient in only one; namely, phosphorus. The analysis of the Denton clay showed it to be highly fertile. From the consideration of the pH and the lime content, it has been determined to some extent what crops will grow in each of the soils.
Date: June 1938
Creator: Barnes, Benjamin F.
System: The UNT Digital Library
Manufacturer [Sic] of Densified-Refuse Derived Fuel (d-RDF) Pellets and Methods for the Determination of d-RDF Pellet Densities (open access)

Manufacturer [Sic] of Densified-Refuse Derived Fuel (d-RDF) Pellets and Methods for the Determination of d-RDF Pellet Densities

There are 150 million tons of Municipal Solid Waste (MSW) annually produced in the United States, which is approximately equivalent to 150 million barrels of oil. MSW production is inexhaustible, and is increasing on an annual per capita basis of approximately three per cent. After controlling the moisture and adding a binder, the combustible portion of MSW was converted to pellets. The objects of this project were to 1) evaluate the binder, 2) prepare the pellets, and 3) evaluate the pellets with regard to density. The manufacture of pellets was conducted at the Naval Air Station, Jacksonville, Florida. The evaluation of the binders and the pellets was done at North Texas State University (NTSU). There were three procedures for measuring the density. The first, using water displacement, was from the American Society for Testing and Material (ASTM). The second, using wax coating, was also from ASTM. The third, using sharply-cut cylindrical pellets, was developed at NTSU.
Date: December 1986
Creator: Attili, Bassam Saleem
System: The UNT Digital Library
A Comparison of the Achievements of Science and Non-Science Majors Enrolled in General Chemistry at North Texas State College (open access)

A Comparison of the Achievements of Science and Non-Science Majors Enrolled in General Chemistry at North Texas State College

It is the specific purpose of this investigation to determine the difference, if any, in the amount of practical, everyday chemistry learned by the science majors as opposed to the non-science majors enrolled in general chemistry at the North Texas State College during the school year 1950-1951.
Date: 1951
Creator: Brogdon, Billie R.
System: The UNT Digital Library
The Ascorbic Acid Metabolism of Fifty College Women in the North Texas State Teachers College (open access)

The Ascorbic Acid Metabolism of Fifty College Women in the North Texas State Teachers College

A study of the ascorbic acid metabolism of a group of fifty college women in the North Texas State Teachers College between the months of April and July, 1943.
Date: 1943
Creator: Harshbarger, Marjorie
System: The UNT Digital Library
A Mineral Analysis of the Henrietta Water Supply (open access)

A Mineral Analysis of the Henrietta Water Supply

The water which supplies the city of Henrietta, Clay County, Texas, is obtained from the Little Wichita River. A concrete dam was built across the river at a point about a mile and a half north of town.
Date: 1941
Creator: Selvidge, R. F.
System: The UNT Digital Library
A Chemical, Physical, and Biological Investigation of the Total Suspended and Dissolved Substances in Lake Dallas with Emphasis on Sanitation (open access)

A Chemical, Physical, and Biological Investigation of the Total Suspended and Dissolved Substances in Lake Dallas with Emphasis on Sanitation

The purpose of this investigation is to determine the suspended organic matter and the total phosphorus in the waters of Lake Dallas and to evaluate these findings. Since organic matter floating in lakes is largely composed of minute plants, animals, and detritus derived from animals and plants, the fertilizing effect of phosphorus must be considered as an integral part of this problem.
Date: 1942
Creator: Eads, Ewin A.
System: The UNT Digital Library
The Storage of Organic Matter in Bottom Deposits of Lake Dallas (open access)

The Storage of Organic Matter in Bottom Deposits of Lake Dallas

The purpose of this investigation is to find which season of the year organic matter increases most in the bottom deposits of Lake Dallas, the reason for the increase, and the amount of organic matter increase from year to year. It is hoped that this study will be beneficial in understanding the conditions in artificial reservoirs.
Date: 1941
Creator: Williams, Cyrus Paul
System: The UNT Digital Library
Chemical Analysis of the Bottom Deposits of Artificial Lakes with Special Emphasis on Lake Dallas (open access)

Chemical Analysis of the Bottom Deposits of Artificial Lakes with Special Emphasis on Lake Dallas

This study is for the purpose of determining the chemical content of typical artificial reservoir bottom deposits.
Date: 1940
Creator: Patrick, Paul V.
System: The UNT Digital Library
A Chemical Analysis of Yellow Dent Corn (open access)

A Chemical Analysis of Yellow Dent Corn

This study examines history, climate, and distribution in relation to the chemical content of yellow dent corn.
Date: August 1939
Creator: Hamby, R. B.
System: The UNT Digital Library
A Chemical Investigation of Lake Dallas to Determine the Factors Influencing Plankton Growth. (open access)

A Chemical Investigation of Lake Dallas to Determine the Factors Influencing Plankton Growth.

A study to determine the organic content of Lake Dallas, and study the influence on plankton growth.
Date: August 1939
Creator: Welch, Herschel
System: The UNT Digital Library