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Report
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Technical Report Archive and Image Library
The Vapor Pressure of Arsenic Trioxide
Date: March 1915
Creator: Welch, H. V.
Description: Technical paper issued by the Bureau of Mines over investigations of vapor pressure. The methods and equipment used for the investigations are presented. The results are discussed. This paper includes tables, illustrations, and photographs.
Contributing Partner: UNT Libraries Government Documents Department
Permallink:digital.library.unt.edu/ark:/67531/metadc66432/
Vapor pressures and calculated heats of vaporization of concentrated nitric acid solutions in the composition range 71 to 89 percent nitrogen dioxide, 1 to 10 percent water, and in the temperature range 10 to 60 degrees C
Date: February 5, 1954
Creator: Mckeown, A B
Description: Total vapor pressures were measured for 16 acid mixtures of the ternary system nitric acid, nitrogen dioxide, and water within the temperature range 10 degrees to 60 degrees Celsius, and with the composition range 71 to 89 weight percent nitric acid, 7 to 20 weight percent nitrogen dioxide, and 1 to 10 weight percent water. Heats of vaporization were calculated from the vapor pressure measurements for each sample for the temperatures 25, 40, and 60 degrees Celsius. The ullage of the apparatus used for the measurements was 0.46. Ternary diagrams showing isobars as a function of composition of the system were constructed from experimental and interpolated data for the temperatures 25, 40, 45, and 60 degrees C and are presented herein.
Contributing Partner: UNT Libraries Government Documents Department
Permallink:digital.library.unt.edu/ark:/67531/metadc60127/
Vapor pressures of concentrated nitric acid solutions in the composition range 83 to 97 percent nitric acid 0 to 6 percent nitrogen dioxide, 0 to 15 percent water, and in the temperature range 20 to 80 C
Date: September 17, 1953
Creator: Mckeown, A B
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Permallink:digital.library.unt.edu/ark:/67531/metadc59800/
Vaporization rates and drag coefficients for isooctane sprays in turbulent air streams
Date: October 1, 1954
Creator: Ingebo, Robert D
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Permallink:digital.library.unt.edu/ark:/67531/metadc57262/
Vaporization rates and heat-transfer coefficients for pure liquid drops
Date: July 1, 1951
Creator: Ingebo, Robert D
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Permallink:digital.library.unt.edu/ark:/67531/metadc59849/
Variable Characteristics of the Oil in the Tensleep Sandstone Reservoir, Elk Basin Field, Wyoming and Montana
Date: April 1951
Creator: Espach, Ralph H.
Description: Report issued by the U.S. Bureau of Mines on the characteristics of oil obtained from the Tensleep Sandstone Reservoir. The samples collected are analyzed for physical characteristics and presented in tables and graphs. The report also includes a map.
Contributing Partner: UNT Libraries Government Documents Department
Permallink:digital.library.unt.edu/ark:/67531/metadc38557/
The variable density wind tunnel of the National Advisory Committee for Aeronautics
Date: January 1, 1926
Creator: Munk, Max M
Description: This report contains an exact description of the new wind tunnel of the National Advisory Committee for Aeronautics. This is the first american type wind tunnel. It differs from ordinary wind tunnels by its being surrounded by a strong steel shell, 35 feet long and 15 feet in diameter. A compressor system is provided to fill this shell - and hence the entire wind tunnel - with air compressed to a density up to 25 times the ordinary atmospheric density. It is demonstrated in the report that the increase of the air density makes up for a corresponding decrease in the scale of the model. Hence such american type wind tunnel is free from scale effect. The report is illustrated by many drawings and photographs. All construction details are described, and many dimensions given. The method of conducting tests is also described and some preliminary results given in the report. So far, the tests have confirmed the chief feature of this wind tunnel - absence of scale effect.
Contributing Partner: UNT Libraries Government Documents Department
Permallink:digital.library.unt.edu/ark:/67531/metadc65879/
A variable-frequency light synchronized with a high-speed motion-picture camera to provide very short exposure times
Date: May 1, 1953
Creator: Lindsey, Walter F
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Permallink:digital.library.unt.edu/ark:/67531/metadc57143/
A variable-geometry axisymmetric supersonic inlet with telescoping centerbody
Date: September 7, 1955
Creator: Conners, James F
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Permallink:digital.library.unt.edu/ark:/67531/metadc61615/
Variable pitch propeller
Date: July 1, 1923
Creator: Pistolesi, Enrico
Description: The advantages of variable pitch propellers over constant pitch propellers is presented along with different methods of varying the pitch. The technique of varying the shape of the propeller is presented as the most efficient one.
Contributing Partner: UNT Libraries Government Documents Department
Permallink:digital.library.unt.edu/ark:/67531/metadc56115/