Dynamics of a turbojet engine considered as a quasi-static system (open access)

Dynamics of a turbojet engine considered as a quasi-static system

From Summary: "A determination of the dynamic characteristics of a typical turbojet engine with a centrifugal compressor, a sonic-flow turbine-nozzle diaphragm, and fixed area exhaust nozzle is presented. A generalized equation for transient behavior of the engine was developed; this equation was then verified by calculations using compressor and turbine performance charts extrapolated from equilibrium operating data and by experimental data obtained from an engine operated under transients in fuel flow."
Date: July 27, 1949
Creator: Otto, Edward W. & Taylor, Burt L., III
Object Type: Report
System: The UNT Digital Library
Investigation of effects of movable exhaust-nozzle plug on operational performance of 20-inch ram jet (open access)

Investigation of effects of movable exhaust-nozzle plug on operational performance of 20-inch ram jet

Report presenting the effects of a movable exhaust-nozzle plug on the operational performance of a 20-inch ramjet in the altitude wind tunnel. Results were obtained at various exhaust-nozzle-plug positions over a range of fuel-air ratios, combustion-chamber-inlet velocities and static pressures, and ambient-air static pressures.
Date: July 27, 1948
Creator: Sterbentz, William H. & Wilcox, Fred A.
Object Type: Report
System: The UNT Digital Library

Newsmap. Monday, July 27, 1942 : week of July 17 to July 24

Front: Text describes action on various war fronts: Southwest Pacific, China, Aleutians, Atlantic, North Africa, Western Europe, Russia. Large world map is keyed to text and illustrates time zones around the world. Includes inset maps: China front, Russian front. Includes seven photographs. Back: Photographs show a variety of tanks utilized by the British Army.
Date: July 27, 1942
Creator: [United States.] Army Orientation Course.
Object Type: Poster
System: The UNT Digital Library
The Preparation of TCl₄ With Hexachloropropylene (open access)

The Preparation of TCl₄ With Hexachloropropylene

Report discussing various reaction methods for preparing TCl₄ with hexachloropropylene, as well as various methods for drying the TCl₄ after the reaction. Experimental methods are described in detail, and experimental results are presented.
Date: July 27, 1945
Creator: Pitt, B. M.; Curran, W. F.; Schmitt, J. M.; Wagner, E. L. & Miller, A. J.
Object Type: Report
System: The UNT Digital Library
Texas Attorney General Opinion: V-863 (open access)

Texas Attorney General Opinion: V-863

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Price Daniel, regarding a legal question submitted for clarification: Authority of a stock fire and casualty insurance company and a county mutual insurance company to enter into a mutual reinsurance agreement, and related questions.
Date: July 27, 1949
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Business Review, Volume 14, Issue 6, July 1940 (open access)

Texas Business Review, Volume 14, Issue 6, July 1940

Newsletter of the University of Texas Bureau of Business Research outlining statistics and research related to business in Texas.
Date: July 27, 1940
Creator: University of Texas. Bureau of Business Research.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Theoretical Characteristics of Two-Dimensional Supersonic Control Surfaces (open access)

Theoretical Characteristics of Two-Dimensional Supersonic Control Surfaces

Report presenting aerodynamic characteristics of uncambered symmetrical parabolic and double-wedge airfoils with leading-edge and trailing-edge flaps using the Busemann second-order-approximation theory. Characteristics presented include aileron effectiveness factor, rate of change of hinge-moment coefficient with aileron deflection, rate of change of the pitching-moment coefficient, and the location of the center of pressure of the airfoil-aileron combination.
Date: July 27, 1948
Creator: Morrissette, Robert R. & Oborny, Lester F.
Object Type: Report
System: The UNT Digital Library
Urine Analysis for Tritium Oxide (open access)

Urine Analysis for Tritium Oxide

This report analyzes a procedure based on the production of acetylene from the active water, with subsequent measurement of the ionization caused by the tritium beta particle. This eliminates the troublesome absorption on the chamber walls when hydrogen is used, and provides a rapid method for the preparation of the urine samples.
Date: July 27, 1949
Creator: Healy, J. W.
Object Type: Report
System: The UNT Digital Library
Urine Analysis for Tritium Oxide (open access)

Urine Analysis for Tritium Oxide

This paper describes a means of determining tritium oxides in urine relying upon the production of acetylene from the active water with subsequent measurement of the ionization caused by the tritium beta particle.
Date: July 27, 1949
Creator: Healy, J. W.
Object Type: Report
System: The UNT Digital Library