Apparent Effect of Inlet Temperature on Adiabatic Efficiency of Centrifugal Compressors (open access)

Apparent Effect of Inlet Temperature on Adiabatic Efficiency of Centrifugal Compressors

From Introduction: "The results of varying only Reynolds number for several equivalent tip speeds are presented and probable reasons for the apparent variation of adiabatic efficiency with inlet temperature are discussed."
Date: February 1948
Creator: Anderson, Robert J.; Ritter, William K. & Parsons, Shirley R.
Object Type: Report
System: The UNT Digital Library
American Recovery and Reinvestment Act (ARRA) FEMP Technical Assistance U.S. General Services Administration – Project 195 John Seiberling Federal Office Building and U.S. Courthouse, Akron, Ohio (open access)

American Recovery and Reinvestment Act (ARRA) FEMP Technical Assistance U.S. General Services Administration – Project 195 John Seiberling Federal Office Building and U.S. Courthouse, Akron, Ohio

This report documents the findings from an onsite audit of the John Seiberling Federal building located in Akron, Ohio. The Federal landlord for this building is the General Services Administration (GSA). The focus of the audit was to identify various no-cost or low-cost energy efficiency opportunities that, once implemented, would reduce in either electrical and gas consumption and increase the operational efficiency of the building. This audit also provided an opportunity to identify potential capital cost projects that should be considered in the to acquire additional energy (electric and gas) and water savings to further increase the operational efficiency of the building.
Date: May 28, 2010
Creator: Arends, J. & Sandusky, William F.
Object Type: Report
System: The UNT Digital Library
Engineering Study of Evaporation for Concentrating Radioactive Liquid Wastes : Engineering Research Final Report (open access)

Engineering Study of Evaporation for Concentrating Radioactive Liquid Wastes : Engineering Research Final Report

Summary: "The problem of evaporation of secondary radioactive wastes resulting from waste disposal studies at Mound Laboratoy has been studied experimentally to determine the fundamental design characteristics of a plant size unit. Emphasis, of course, was on decontamination, but the factors affecting foaming and scaling also had to be investigated and evaluated. Generally speaking, the final design is a standard type of evaporator, the only unique feature being the relation of the two effects. Where critical, as affecting performance, the particular design features have been specified."
Date: November 1, 1950
Creator: Bates, R. L. & McEwen, M.
Object Type: Report
System: The UNT Digital Library
Improvement in Policemen's Batons. (open access)

Improvement in Policemen's Batons.

Patent for an improved policemen's baton made of flexible material, such as india-rubber or gutta-percha, and sometimes an interior metal stem. Using a flexible material makes the baton elastic enough so that no serious injury can be caused, yet it is still effective. Illustration included.
Date: October 14, 1873
Creator: Beery, Simon & McDonald, John W.
Object Type: Patent
System: The Portal to Texas History
Beef Production in the Corn Belt (open access)

Beef Production in the Corn Belt

This bulletin discusses beef production in the Corn Belt of the United States with special regard to feed preparation, cattle selection, and methods for fattening cattle.
Date: 1921
Creator: Black, W. H. (William Henry), 1888-1949
Object Type: Pamphlet
System: The UNT Digital Library
Antiknock Effectiveness of Xylidines in Small-Scale Engines (open access)

Antiknock Effectiveness of Xylidines in Small-Scale Engines

"The data presented in this report are part of a general program to determine the effects of xylidines on the knock-limited performance of currently used aviation fuels" (p. 2).
Date: August 1943
Creator: Branstetter, J. Robert & Meyer, Carl L.
Object Type: Report
System: The UNT Digital Library
The Roundheaded Apple-Tree Borer (open access)

The Roundheaded Apple-Tree Borer

This report discusses the roundheaded apple-tree borer, an insect in the eastern and midwestern United States that, in its larval stage, destroys the bark and wood of apple trees. Several methods of control are discussed, including worming, paints and washes, and sprays.Apple-tree borers.
Date: 1915
Creator: Brooks, Fred E.
Object Type: Pamphlet
System: The UNT Digital Library
A Study and Development of the Hickman Sea-Water Still (open access)

A Study and Development of the Hickman Sea-Water Still

From Introduction: "The report is organized into three major sections and three appendixes. In first major section are presented a brief historical account of the work done by other organizations prior to November, 1957, and a detailed description of the experiments conducted by Battelle with the No.4 and No. 5 stills. The second major section summarizes the results of cost studies. The third major section gives data, calculations, and derivations pertaining to the heat-transfer aspects of the Hickman still."
Date: September 1960
Creator: Buckel, W. L.; Beck, W. D.; Irwin, J. R.; Putnam, A. A. & Eibling, J. A.
Object Type: Report
System: The UNT Digital Library
Forest Planting and Farm Management (open access)

Forest Planting and Farm Management

Report promoting and explaining the role of forest planting in farm management. Planning preparations and model prairie farm are proposed. A farm in Ohio is used as an example of successful forest planting techniques in managing a farm. In addition, types of trees and planting methods are recommended.
Date: 1905
Creator: Clothier, George L. (George Lemon)
Object Type: Pamphlet
System: The UNT Digital Library
Resolution 36-05 (open access)

Resolution 36-05

Resolution from the council of the village of Bulter, Ohio, to the BRAC regarding the 179th Airlift Wing in Mansfield, Ohio. The resolution notes several reasons why the council supports the repeal of BRAC's recommendation for the wing's closure, from economic considerations to community pride and security.
Date: July 25, 2005
Creator: Council of the Village of Butler, Ohio
Object Type: Text
System: The UNT Digital Library
Uranium Favorability of Nonmarine and Marginal-Marine Strata of Late Precambrian and Paleozoic Age in Ohio, Pennsylvania, New Jersey, and New York (open access)

Uranium Favorability of Nonmarine and Marginal-Marine Strata of Late Precambrian and Paleozoic Age in Ohio, Pennsylvania, New Jersey, and New York

"This report was prepared in fulfillment of the U.S. Atomic Energy Commission Contract No. AT(05-1)-1623 to the University of North Carolina during the Period May 1973 through September 1981."
Date: June 1982
Creator: Dennison, John M.
Object Type: Report
System: The UNT Digital Library
Altitude-wind-tunnel investigation of thrust augmentation of a turbojet engine IV: performance with tail-pipe burning and water injection (open access)

Altitude-wind-tunnel investigation of thrust augmentation of a turbojet engine IV: performance with tail-pipe burning and water injection

From Introduction: "Thrust augmentation of an axial-flow-type turbojet engine by burning fuel in the tail pipe is discussed in references 1 to 3. Thrust augmentation of the same turbojet engine by water injection at the compressor inlet is reported in reference 4."
Date: June 15, 1948
Creator: Dietz, Robert O., Jr.; Wishnek, George & Kuenzig, John K.
Object Type: Report
System: The UNT Digital Library
Dredging Apparatus. (open access)

Dredging Apparatus.

Patent for an improved dredging apparatus "and it consists in combining with the well known bucket chain form of excavator a suction pipe provided with a hopper and a crushing or breaking device so that the material being deposited in the hopper by the continuously moving buckets will be carried under the action of gravity to the breaking or crushing device and thence through a suction pipe and pump and delivery pipe to the place of deposit" (lines 9-18).
Date: February 14, 1893
Creator: Douglas, William M.
Object Type: Patent
System: The Portal to Texas History
Alfalfa on Corn-Belt Farms (open access)

Alfalfa on Corn-Belt Farms

"Alfalfa, on Corn Belt farms, if introduced in any considerable acreage, requires a great amount of labor at the most critical stage of the cultivation of corn. This bulletin tells how the more successful Corn Belt growers fit alfalfa into their cropping systems without interfering seriously with labor schedules. This is done in the main by speeding up the haying operations and corn cultivation by the use of labor-saving implements and more efficient methods. To some extent, the use of alfalfa for pasture serves to reduce the labor difficulties. The methods of handling the alfalfa crop that have been worked out by some of the more experienced Corn Belt growers are illustrated by several concrete examples of good management. The material for this bulletin was obtained on 235 Corn Belt farms on which alfalfa is grown successfully." -- p. 2
Date: 1919
Creator: Drake, J. A.; Rundles, J. C. & Jennings, R. D. (Ralph Dickieson), 1892-
Object Type: Pamphlet
System: The UNT Digital Library
Mining and Preparing Domestic Graphite for Crucible Use (open access)

Mining and Preparing Domestic Graphite for Crucible Use

From Prefactory Statement: "In this bulletin are presented the results obtained in the first two phases of the work outlined above. The bulletin is in two parts. The first part describes the methods of mining and milling used, suggests a standard method of sampling finished graphite, and describes a rapid and convenient method of analysis developed at the Pittsburgh station of the Bureau of Mines, to which has been assigned the analytical and microscopic work. The second part describes experiments on the concentration and milling of graphite, which were made at the Salt Lake City, Utah, station."
Date: 1920
Creator: Dub, George D. & Moses, Frederick G.
Object Type: Report
System: The UNT Digital Library
Combined Lister Plow and Planter. (open access)

Combined Lister Plow and Planter.

Patent for a combined Lister plow and planter that both breaks the ground and plants seed. Appears to be a type of early tractor.
Date: May 7, 1907
Creator: Dudley, Thomas J.
Object Type: Patent
System: The Portal to Texas History
[Letters to the BRAC Commission - August 2005] (open access)

[Letters to the BRAC Commission - August 2005]

Letters from doctors and other individuals to the BRAC Commission, in which they support the Armed Forces Institute of Pathology. Also included are two letters calling for the closure of the Air Force Institute of Technology.
Date: August 2005
Creator: Durko, Robert R.; Nawaz, Samia; Auerbach, Donald; Tessmer, Carl F.; Procoop, Gary W. & Hennessey, William J.
Object Type: Letter
System: The UNT Digital Library
Aerial Gamma Ray and Magnetic Survey, Final Report: Cincinnati Quadrangle, Indiana/Ohio/Kentucky (open access)

Aerial Gamma Ray and Magnetic Survey, Final Report: Cincinnati Quadrangle, Indiana/Ohio/Kentucky

Final report analyzing aerial gamma ray and magnetic data in the Cincinnati quadrangle, including a detailed geologic summary, interpretation report, reduced scale copies of all maps and profiles, histograms, and statistical tables for the quadrangle.
Date: March 1981
Creator: EG & G GeoMetrics
Object Type: Report
System: The UNT Digital Library
Aerial Gamma Ray and Magnetic Survey, Final Report: Columbus Quadrangle, Ohio (open access)

Aerial Gamma Ray and Magnetic Survey, Final Report: Columbus Quadrangle, Ohio

Final report analyzing aerial gamma ray and magnetic data in the Columbus quadrangle, including a detailed geologic summary, interpretation report, reduced scale copies of all maps and profiles, histograms, and statistical tables for the quadrangle.
Date: July 1981
Creator: EG & G GeoMetrics
Object Type: Report
System: The UNT Digital Library
Aerial Gamma Ray and Magnetic Survey, Final Report: Louisville Quadrangle, Indiana/Ohio/Kentucky (open access)

Aerial Gamma Ray and Magnetic Survey, Final Report: Louisville Quadrangle, Indiana/Ohio/Kentucky

Final report analyzing aerial gamma ray and magnetic data in the Louisville quadrangle, including a detailed geologic summary, interpretation report, reduced scale copies of all maps and profiles, histograms, and statistical tables for the quadrangle.
Date: March 1981
Creator: EG & G GeoMetrics
Object Type: Report
System: The UNT Digital Library
Aerial Gamma Ray and Magnetic Survey: Marion Quadrangle, Ohio (open access)

Aerial Gamma Ray and Magnetic Survey: Marion Quadrangle, Ohio

Final report analyzing aerial gamma ray and magnetic data in the Marion quadrangle, Ohio, including a detailed geologic summary, interpretation report, reduced scale copies of all maps and profiles, histograms, and statistical tables for the quadrangle.
Date: June 1981
Creator: EG & G GeoMetrics
Object Type: Report
System: The UNT Digital Library

[Cincinnati Quadrangle: Average Record Data Listings]

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Cincinnati quadrangle in Indiana, Ohio, and Kentucky.
Date: March 1981
Creator: EG & G GeoMetrics
Object Type: Dataset
System: The UNT Digital Library

[Cincinnati Quadrangle: Single Record Data Listings]

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Cincinnati quadrangle in Indiana, Ohio, and Kentucky.
Date: March 1981
Creator: EG & G GeoMetrics
Object Type: Dataset
System: The UNT Digital Library

[Columbus Quadrangle: Average Record Data Listings]

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Columbus quadrangle in Ohio.
Date: July 1981
Creator: EG & G GeoMetrics
Object Type: Dataset
System: The UNT Digital Library