UNT Libraries Government Documents Department - 27 Matching Results

Search Results

Heat Transfer Over the Circumference of a Heated Cylinder in Transverse Flow

Description: A method for recording the local heat-transfer coefficients on bodies in flow was developed. The cylinder surface was kept at constant temperature by the condensation of vapor except for a narrow strip which is heated separately to the same temperature by electricity. The heat-transfer coefficient at each point was determined from the electric heat output and the temperature increase. The distribution of the heat transfer along the circumference of cylinders was recorded over a range of Reynolds numbers of from 5000 to 426,000. The pressure distribution was measured at the same time. At Reynolds numbers up to around 100,000 high maximums of the heat transfer occurred in the forward stagnation point at and on the rear side at 180C, while at around 80 the heat-transfer coefficient on both sides of the cylinder behind the forward stagnation point manifested distinct minimums. Two other maximums occurred at around 115 C behind the forward stagnation point between 170,000 and 426,000. At 426,000 the heat transfer at the location of those maximums was almost twice as great as in the forward stagnation point, and the rear half of the cylinder diffused about 60 percent of the entire heat, The tests are compared with the results of other experimental and theoretical investigations.
Date: October 1, 1943
Creator: Schmidt, Ernst & Wenner, Karl

The Measurement of Fuel-Air Ratio by Analysis of the Oxidized Exhaust Gas

Description: An investigation was made to determine a method of measuring fuel-air ratio that could be used for test purposes in flight and for checking conventional equipment in the laboratory. Two single-cylinder test engines equipped with typical commercial engine cylinders were used. The fuel-air ratio of the mixture delivered to the engines was determined by direct measurement of the quantity of air and of fuel supplied and also by analysis of the oxidized exhaust gas and of the normal exhaust gas. Five fuels were used: gasoline that complied with Army-Navy Fuel Specification, No. AN-VV-F-781 and four mixtures of this gasoline with toluene, benzene, and xylene. The method of determining the fuel-air ratio described in this report involves the measurement of the carbon-dioxide content of the oxidized exhaust gas and the use of graphs or the presented equation. This method is considered useful in aircraft, in the field, or in the laboratory for a range of fuel-air ratios from 0.047 to 0.124.
Date: October 1, 1943
Creator: Memm, J. Lawrence, Jr.

National Safety Competition of 1942

Description: Report issued by the U.S. Bureau of Mines on its annual safety contest between mine workers. Different types of mines enrolled in the competition and the winners and honorable mentions for 1942 are presented. This report includes tables.
Date: October 1943
Creator: Adams, William Waugh & Lawrence, T. D.

Newsmap. Monday, October 4, 1943 : week of September 23 to September 30, 212th week of the war, 94th week of U.S. participation

Description: Front: Text describes action on various war fronts: Italy, Corsica, Russia, New Georgia, Gilbert Is., Ellice Is., New Guinea, Western Europe. Maps show Northeast New Guinea; central Italy; Italy, Yugoslavia, Sardinia, Sicily, Tunisia. All maps show Nazi or Japanese occupied areas. Includes photographs: Naples, On the beach at Salerno, Smoke screen over Palermo, Ship with a mouth. Back: A mournful melody, or, a dud dood it again : and watch out for booby traps! 8 cartoon panels graphically describe the dangers of unexploded projectiles.
Date: October 4, 1943
Creator: [United States.] Army Orientation Course

Newsmap. Monday, October 11, 1943 : week of September 30 to October 7, 213th week of the war, 95th week of U.S. participation

Description: Front: Text describes action on various war fronts: Aegean Sea, Italy, Corsica, Russia, Norway, Southwest Pacific, Air offensive. Maps show Greece and Turkey, Eastern front, Central Italy. Includes photographs: Soldier killed by booby-trap, "Battleship X" is the USS South Dakota, Brenner Pass, Resting American soldiers following a battle in Munda. Back: Typical German infantry regiment. Illustration shows regiment. Text gives detailed description of Regimental Headquarters Company, Battalion Headquarters and Headquarters Detachment, Battalions, Infantry and Motorized Companies.
Date: October 11, 1943
Creator: [United States.] Army Orientation Course

Newsmap. Monday, October 18, 1943 : week of October 7 to October 14, 214th week of the war, 96th week of U.S. participation

Description: Front: Text describes action on various war fronts: Russia, Central Italy, Italy, Azores, Air offensive, Norway, Southwest Pacific, Wake. Large world map shows United Nations, Axis and Axis occupied areas, countries with Axis relations broken, and neutral countries. Includes inset maps: Eastern Europe, Roads to Rome, the globe, Scene of combined operations in the southwest Pacific. Photographs: Burma bombing campaign, Modern road to Rome, Wake Island, Tailgunner Sergt. Harris Goldberg of Brookline, Mass. Back: Photographic view of the world with the center at Tokyo, Japan. Includes instructions for using a detachable scale that, when centered on Tokyo, measures distances along any line running through Tokyo.
Date: October 18, 1943
Creator: [United States.] Army Orientation Course

Newsmap. Monday, October 25, 1943 : week of October 14 to October 21, 215th week of the war, 97th week of U.S. participation

Description: Front: Text describes action on various war fronts: Russia, Italy, Schweinfurt, Southwest Pacific, Burma, North Pacific, U.S. subs. Inset maps: Bridgeheads across the Dnepr River, [Pacific Ocean off coast of New Guinea], [Areas in Southern Europe providing targets for bomber forces], Operations begin in Burma. Photographs: Nazis use Soviet equipment and men in battle for Italy, Soviet soldier and RAF officer, Lieut. Col. Chesley G. Peterson, Salt Lake City, Fuel pipe lines, Fifth Army engineers, In the Naga Hills of northern Burma. Back: Photographic view of the world with the center at Berlin, Germany. Includes instructions for using a detachable scale that, when centered on Berlin, measures distances along any line running through Berlin.
Date: October 25, 1943
Creator: [United States.] Army Orientation Course

Report on Reserves and Production Situation of Vanadiferous and Related Ores in Colorado Plateau Region

Description: From introduction: The general distribution of known deposits of vanadium-bearing sandstone, which also contain some uranium and radium, is shown in figure 1 1/ and Exhibit A, plate 53. 2/ During 1939-41 the Geological Survey made detailed geological studies of these deposits in the Uravan district, Montrose County, Colorado, as well as preliminary examinations in other parts of the Colorado Plateau vanadium region. In 1942 detailed geological studies were made o the deposits in the Egnar-Slick Rock district, San Miguel Co., Colo.; 3/ the Carrizo Moungains district, Navajo Indian Reservation, Arizona and New Mexico; 4/ the Placerville district, San Miguel County, Colo. 5/ and the Monticello district, San Juan Co., Utah. 6/ Since May 3, 1943, the Gelogical Survey has guided the Bureau of Mines program of prospecting these deposits in parts of Colorado and Utah.
Date: October 10, 1943
Creator: Fischer, Richard P. & Stokes, William Lee