Newsmap. Monday, December 13, 1943 : week of December 2 to December 9, 222nd week of the war, 104th week of U.S. participation

Front: Text describes action on various war fronts: Italy, U.S.S.R., air offensive, Marshal Is[lands], southwest Pacific, [Teheran] conference. Map shows Nazi-dominated areas of Europe. Photographs: Marshal Stalin, President Roosevelt, and Prime Minister Churchill at Teheran conference (4 photographs); The Air Offensive - 8th Air Force bombes en route - Target Bremen. Back: A sign of comradeship... Includes illustration and "Li'l Abner" cartoons.
Date: December 13, 1943
Creator: [United States.] Army Orientation Course.
Object Type: Poster
System: The UNT Digital Library

Newsmap. Monday, September 13, 1943 : week of September 2 to September 9, 209th week of the war, 91st week of U.S. participation

Front: Text describes action on various war fronts: Italy, Yugoslavia, Air offensive, Southwest Pacific, Russia. Maps show military activities in Eurasia and New Guinea near Salamaua with boxed text highlighting action. Photograph: A story of blood [American soldier receives a transfusion while lying on the street in Santa Agata, Sicily while townspeople look on]. Back: Something money can't buy - United States Army tradition! Illustration shows service ribbons of service medals. Text describes the purpose and conditions of award of service medals.
Date: September 13, 1943
Creator: [United States.] Army Orientation Course.
Object Type: Poster
System: The UNT Digital Library
Texas Attorney General Opinion: O-5148 (open access)

Texas Attorney General Opinion: O-5148

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, Gerald Mann, regarding a legal question submitted for clarification: Constitutionality of H. B. No. 360, 48th Legislature, Regular Session.
Date: March 13, 1943
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: O-5183 (open access)

Texas Attorney General Opinion: O-5183

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, Gerald Mann, regarding a legal question submitted for clarification: Payment of compensation to election officials holding common school district trustee elections.
Date: April 13, 1943
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Production of (Uranium) Tetrafluoride (open access)

Production of (Uranium) Tetrafluoride

Production of tetrafluoride for the month of April was 49,400. New equipment installed late in March operated smoothly and the production was slightly over the rated capacity of the plant. Nickel ends were welded on to the steel reactor tubes to prevent corrosion at the cover joint and possible contamination of the product with iron. The nickel ends will also save considerable repair work on the tube ends. The magnesium trays for some of the reactors are beginning to crack at the sides from frequent straightening. The trays are bent out of shape by the expansion of the product and are reshaped by hammering over a die. Some of the cracks have been repaired by welding but this is not very satisfactory because the welded trays are harder to straighten and often crack again.
Date: May 13, 1943
Creator: Long, K. E. & Swinehart, C. F.
Object Type: Report
System: The UNT Digital Library
The Flow of a Compressible Fluid Past a Curved Surface (open access)

The Flow of a Compressible Fluid Past a Curved Surface

"An iteration method is employed to obtain the flow of a compressible fluid past a curved surface. The first approximation which leads to the Prandtl-Glauert rule, is based on the assumption that the flow differs but little from a pure translation. The iteration process then consists in improving this first approximation in order that it will apply to a flow differing from pure translatory motion to a greater degree. The method fails when the Mach number of the undisturbed stream reaches unity but permits a transition from subsonic to supersonic conditions without the appearance of a compression shock" (p. 305).
Date: September 13, 1943
Creator: Kaplan, Carl
Object Type: Report
System: The UNT Digital Library
Jet-boundary corrections for reflection-plane models in rectangular wind tunnels (open access)

Jet-boundary corrections for reflection-plane models in rectangular wind tunnels

A detailed method for determining the jet-boundary corrections for reflection-plane models in rectangular wind tunnels is presented. The method includes the determination of the tunnel span local distribution and the derivation of equations for the corrections to the angle of attack, the lift and drag coefficients, and the pitching-, rolling-, yawing-, and hinge-moment coefficients. The principle effects of aerodynamic induction and of the boundary-induced curvature of the streamlines have been considered. An example is included to illustrate the method. Numerical values of the more important corrections for reflection-plane models in 7 by 10-foot closed wind tunnels are presented.
Date: April 13, 1943
Creator: Swanson, Robert S. & Toll, Thomas A.
Object Type: Report
System: The UNT Digital Library
Determination of general relations for the behavior of turbulent boundary layers (open access)

Determination of general relations for the behavior of turbulent boundary layers

From Summary: "An analysis has been made of a considerable amount of data for turbulent boundary layers along wings and bodies of various shapes in order to determine the fundamental variables that control the development of turbulent boundary layers. It was found that the type of velocity distribution in the boundary layer could be expressed in terms of a single parameter. This parameter was chosen as the ratio of the displacement thickness to the momentum thickness of the boundary layer. The variables that control the development of the turbulent boundary layer apparently are: (1) the ratio of the nondimensional pressure gradient, expressed in terms of the local dynamic pressure outside the boundary layer and boundary-layer thickness, to the local skin-friction coefficient and (2) the shape of the boundary layer. An empirical equation has been developed in terms of these variables that, when used with the momentum equation and the skin-friction relation, makes it possible to trace the development of the turbulent boundary layer to the separation point."
Date: April 13, 1943
Creator: von Doenhoff, Albert E. & Tetervin, Neal
Object Type: Report
System: The UNT Digital Library
Optimum Design of Catalytic Towers (open access)

Optimum Design of Catalytic Towers

Abstract: "This paper gives an arithmetic method of computing the number of sections required in a catalytic tower to produce a given enrichment. It also tells how to calculate the enrichment of a tower with a given number of sections. The problem of the most economical design of catalytic towers is solved. Methods are given for determining the temperature, the efficiencies of catalyst beds and strippers, the relative production rate, and the water vapor-hydrogen gas ratio which give the optimum combination of operating pressure, cross sectional area, number of sections, and volume of catalyst in the tower. Simple directions as to how to make the calculations are included."
Date: March 13, 1943
Creator: Mayer, Harris
Object Type: Report
System: The UNT Digital Library