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Transportation Corps : railway-operating battalion.

Description: Describes "the organization and operation of the railway-operating battalion upon a railway operated by the Military Railway Service. Its purpose is to assist military railway officers in the training and operation of their units and to guide command and staff officers charged with their employment."
Date: February 4, 1944
Creator: United States. War Department.
Partner: UNT Libraries Government Documents Department

Preliminary Investigation at Low Speeds of Swept Wings in Yawing Flow

Description: Memorandum presenting a wind-tunnel investigation conducted to determine the rotary stability characteristics in yawing flow of a series of untapered wings with angles of sweep of -45, 0, 45, and 60 degrees. The results of the yawing-flow tests indicated that the values of the rotary derivatives agreed fairly well with simple sweep theory for a moderate range of lift coefficients.
Date: February 4, 1948
Creator: Goodman, Alex & Feigenbaum, David
Partner: UNT Libraries Government Documents Department

Two-Dimensional Wind-Tunnel Investigation at High Reynolds Numbers of an NACA 65A006 Airfoil With High-Lift Devices

Description: Report presenting an investigation of an NACA 65A006 airfoil equipped with high-lift devices, including a 0.15-chord drooped-nose flap and a 0.20-chord plain trailing-edge flap. Airfoil section lift, pitching-moment, and drag characteristics obtained at high Reynolds numbers and low Mach numbers with the flaps deflected individually and simultaneously are presented. At Reynolds numbers up to 9.0 x 10(exp 6), the optimum combination of drooped-nose and plain trailing-edge flaps increased the maximum section lift coefficients from 0.78 to 1.89.
Date: February 4, 1948
Creator: Nuber, Robert J. & Gottlieb, Stanley M.
Partner: UNT Libraries Government Documents Department

Effect of Turbine Axial Nozzle-Wheel Clearance on Performance of Mark 25 Torpedo Power Plant

Description: "Investigations were made of the turbine from a Mark 25 torpedo to determine the performance of the unit with three different turbine nozzles at various axial nozzle-wheel clearances. Turbine efficiency with a reamed nondivergent nozzle that uses the axial clearance space for gas expansion was little affected by increasing the axial running clearance from 0.030 to 0.150 inch. Turbine efficiency with cast nozzles that expanded the gas inside the nozzle passage was found to be sensitive to increased axial nozzle-wheel clearance" (p. 1).
Date: February 4, 1948
Creator: Hoyt, Jack W. & Kottas, Harry
Partner: UNT Libraries Government Documents Department

Free-Spinning-Tunnel Tests of a 1/24-Scale Model of the Grumman XF9F-2 Airplane, TED No. NACA DE 317

Description: "An investigation of the spin and recovery characteristics of a scale model of the Grumman XF9F-2 airplane has been conducted in the Langley 20-foot free-spinning tunnel. The effects of control settings and movements on the erect and inverted spin and recovery characteristics of the model in the flight loading were determined. The investigation also included spin-recovery-parachute, pilot-escape, and rudder-pedal- . force tests" (p. 1).
Date: February 4, 1948
Creator: Berman, Theodore
Partner: UNT Libraries Government Documents Department

Jet-boundary and plan-form corrections for partial-span models with reflection-plane, end-plate, or no end-plate in a closed circular wind tunnel

Description: A method is presented for determining the jet-boundary and plan-form corrections necessary for application to test data for a partial-span model with a reflection plane, an end plate, or no end plate in a closed circular wind tunnel. Examples are worked out for a partial-span model with each of the three end conditions in the Langley 19-foot pressure tunnel and the corrections are applied to measured values of lift, drag, pitching-moment, rolling-moment, and yawing-moment coefficients.
Date: February 4, 1946
Creator: Sivells, James C. & Deters, Owen J.
Partner: UNT Libraries Government Documents Department

Newsmap for the Armed Forces : Operation Crossroads

Description: Front: The text and illustrations highlight the issues in the atomic age, that humanity was perhaps at its most fateful crossroads. Photographs: Labor, industry sign wage agreements -- Radar reaches the Moon -- Pacific rendezvous -- Felix Gouin leads France -- Hans goes to the polls. Back: Highlights of 45 years (1901 - 1945) service of the Army Nurse Corps. Includes three photographs: U.S. nurses in Britain in 1918 -- Nurses in evacuation hospital, Sicily, 1943 -- Anzio : first nurses to receive Silver Star.
Date: February 4, 1946
Creator: [United States.] Army Information Branch.
Partner: UNT Libraries Government Documents Department

Preparation and use of Ammonium Diuranate in the Ether Extraction Process

Description: In the ether extraction process, as originally developed, purified uranium dioxide was obtained by evaporation and calcination of the uranyl nitrate solution, followed by calcination of the resultant UO{sub 3}. It was suggested that an alternate procedure might be developed, involving the precipitation of uranium from the nitrate solution as ammonium diuranate. This material could then be calcined to uranosic acid, or reduced directly to the dioxide. It had already been established that ammonium diuranate could be precipitated completely from uranyl nitrate solutions. Experiments were carried out to determine whether a basic nitrate, analogous to a known sulfate salt, would be formed in the process. Both direct reduction of the diuranate to UO{sub 2} and calcination to uranosic acid were investigated to determine the physical characteristics and residual nitrogen of the resultant brown oxide.
Date: February 4, 1947
Creator: Brimm, E. O., Dr. & Mohr, P.
Partner: UNT Libraries Government Documents Department

Precipitation of Sodium Diuranate from Pitchblende Liquors

Description: In the treatment of carnotite concentrates, sodium diuranate was prepared by acidifying tricarbonate liquors to eliminate carbon dioxide, and then precipitating the sodium salt by the addition of caustic. Direct precipitation of uranium by the addition of caustic to tricarbonate liquors was used when pitchblende ores were processed, because this procedure was more effective in giving a product with a low molybdenum content. Tests of this method in the laboratory and Pilot Plant indicated that low uranium losses (0.2 to 0.3%) would be encountered with typical liquors if 1.7 to 2.0 lbs of caustic were added for every pound of uranosic oxide in solution. Since losses as high as 3% were incurred in plant operations, further work was undertaken, in an effort to reduce the uranium concentration in the waste liquors.
Date: February 4, 1947
Creator: Brimm, E. O., Dr.
Partner: UNT Libraries Government Documents Department

News bulletin from Luzon, Philippines; Upton Close; Cedric Foster; John Daly; Joseph C. Harsch

Description: Recording of multiple news programs from various networks: A news bulletin from Luzon, in the Philippines; Upton Close, World Parade (NBC, WKY); Cedric Foster (Mutual, KOCY); John Daly, The World Today (CBS, KOMA); Joseph C. Harsch, The Meaning of the News (CBS, KOMA).
Date: February 4, 1945
Creator: Close, Upton, 1894-1960; Foster, Cedric & Daly, John Charles, 1914-1991
Partner: UNT Music Library