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378 Matching Results
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The Aerodynamic Characteristics of Airfoils at Negative Angles of Attack
From Introduction: "The present report gives all the results, including those published in reference 1 and the results of previously un-published tests tests of the airfoils at positive angles of attack."
Date:
February 26, 1932
Creator:
Anderson, Raymond F.
System:
The UNT Digital Library
Specifications for the Freezing Point Method for Determination of the Amount of HF in UF₆
From introduction: "You will find enclosed the specifications for the freezing point method for determination of the amount of HF in UF₆. The specification for cleaning new shipping containers is also included."
Date:
February 26, 1944
Creator:
Priest, Homer F.
System:
The UNT Digital Library
METHOD OF WASHING URANIUM METAL SAWDUST
None
Date:
February 26, 1945
Creator:
Oppold, W.A.
System:
The UNT Digital Library
REPORT ON THE PROCESSING OF PITCHBLENDE
A detailed description of the processing of pitchblende ores used at the Port Hope, Canada, refinery is given including both the recovery and purification of U and Fu. The health hazards present in the processing are discussed, and recommendations are made which will insure adequate health protection. (L.T.W.)
Date:
February 26, 1945
Creator:
Anonsen, S.H.
System:
The UNT Digital Library
Minimum Specific Fuel Consumption of a Liquid-Cooled Multicylinder Aircraft Engine as Affected by Compression Ratio and Engine Operating Conditions
From Summary: "An investigation was conducted on a 12-cylinder V-type liquid-cooled aircraft engine of 1710-cubic-inch displacement to determine the minimum specific fuel consumption at constant cruising engine speed and compression ratios of 6.65, 7.93, and 9.68. At each compression ratio, the effect.of the following variables was investigated at manifold pressures of 28, 34, 40, and 50 inches of mercury absolute: temperature of the inlet-air to the auxiliary-stage supercharger, fuel-air ratio, and spark advance. Standard sea-level atmospheric pressure was maintained at the auxiliary-stage supercharger inlet and the exhaust pressure was atmospheric."
Date:
February 26, 1947
Creator:
Brun, Rinaldo J.; Feder, Melvin S. & Harries, Myron L.
System:
The UNT Digital Library
Free-flight performance of 16-inch diameter supersonic ram-jet units 4: performance of ram-jet units designed for combustion chamber inlet Mach number of 0.21 at free-stream Mach number of 1.6 over a range flight conditions
Report presenting an investigation of 16-inch-diameter ram-jet units under free-flight conditions to determine performance at high subsonic, transonic, and supersonic velocities. Full-scale units were released from the airplane at high altitudes and accelerated by the engine thrust and force of gravity. Results regarding the diffuser total-pressure recovery, drag, thrust coefficient, and combustion are provided.
Date:
February 26, 1951
Creator:
Rabb, Leonard & North, Warren J.
System:
The UNT Digital Library
The Synthetic Liquid Fuel Potential of Arizona
Report documenting the suitability of Arizona for plant locations to produce synthetic liquid fuels, based on raw materials, water sources, and local interest. In this report, they analyze the state primarily for coal deposits suitable for synthetic liquid fuels.
Date:
February 26, 1951
Creator:
Ford, Bacon, and Davis
System:
The UNT Digital Library
Wind-Tunnel Investigation at Mach Numbers From 0.50 to 1.29 of an Unswept, Tapered Wing of Aspect Ratio 2.67 With Leading- and Trailing-Edge Flaps - Flaps Deflected in Combination
Report discusses the results of aerodynamic testing of an unswept, tapered wing with full-span, 25-percent-chord, plain, leading- and trailing-edge flaps at several angles of attack, leading-edge-flap deflection, and trailing-edge-flap deflection. This testing was done in an attempt to reduce the lift coefficients of the wings at moderate angles of attack and to provide more control for flight in the transonic Mach number range.
Date:
February 26, 1951
Creator:
Stivers, Louis S., Jr. & Malick, Alexander W.
System:
The UNT Digital Library
Wind-tunnel investigation at Mach numbers from 0.50 to 1.29 of an unswept, tapered wing of aspect ratio 2.67 with leading- and trailing-edge flaps - leading-edge flaps deflected
Report presenting aerodynamic characteristics of an unswept wing with an aspect ratio of 2.67, a taper ratio of 0.5, and employing full-span, 25-percent chord, plain, leading-edge flaps using wind-tunnel testing of a semispan model. The leading edge flap was generally effective at changing both the lift and pitching-moment coefficients at each angle of attack and Mach number. Results regarding lift characteristics, hinge-moment characteristics, drag characteristics, and pitching-moment characteristics are provided.
Date:
February 26, 1951
Creator:
Stivers, Louis S., Jr. & Malick, Alexander W.
System:
The UNT Digital Library
Analytical Chemistry Division Quarterly Progress Report for Period Ending September 10, 1951
Technical report covering experiments happening on the Analytical Chemistry Division's sites at the Oak Ridge National Laboratory. Includes information on ionic analyses, radio-chemical analyses, spectrochemical analyses, service analyses, inorganic preparations, analytical chemical control of homogeneous reactor solution, optical and electron microscopy, and service analyses for the period ending September 10, 1951. Studies and happenings took place on the Analytical Chemistry Division's X-10 and Y-12 sites. [From Table of Contents, Abstract]
Date:
February 26, 1952
Creator:
Kelley, M. T. & Susano, C. D.
System:
The UNT Digital Library
The Cladding of Beryllium
None
Date:
February 26, 1952
Creator:
Saller, H. A.; Keeler, J. R. & Szumachowski, E. R.
System:
The UNT Digital Library
Cooling Characteristics of an Experimental Tail-Pipe Burner With an Annular Cooling-Air Passage
Memorandum presenting the tail-pipe fuel ratio, mass flow of combustion gas, and radial fuel flow distribution on cooling requirements of tail-pipe burner with annular cooling-air passage.
Date:
February 26, 1952
Creator:
Koffel, William K. & Kaufman, Harold R.
System:
The UNT Digital Library
Cooling characteristics of an experimental tail-pipe burner with an annular cooling-air passage
The effects of tail-pipe fuel-air ratio (exhaust-gas temperatures from approximately 3060 degrees to 3825 degrees R), radial distribution of tail-pipe fuel flow, and mass flow of combustion gas and the inside wall were determined for an experimental tail-pipe burner cooled by air flowing through and insulated cooling-air to combustion gas mass flow from 0.066 to 0.192 were also determined. Results regarding the reproducibility of combustion-gas temperature profiles, effect of variables on average longitudinal profiles of combustion-gas temperature, variation of gas temperatures near the wall with cooling-air flow and temperature, and effects of variables on transverse gas temperatures are provided.
Date:
February 26, 1952
Creator:
Koffel, William K. & Kaufman, Harold R.
System:
The UNT Digital Library
Hinge-Moment and Other Aerodynamic Characteristics at Transonic Speeds of a Quarter-Span Spoiler on a Tapered 45 Degree Sweptback Wing of Aspect Ratio 3
Memorandum presenting an investigation at transonic speeds in the high-speed 7- by 10-foot tunnel to determine the hinge-moment and other aerodynamic characteristics of an inboard plug-type spoiler on a 45 degree sweptback wing of aspect ratio 3. The results indicated that the spoiler would be overbalanced at low projections through the speed range investigated and the for the same rolling moment, the spoiler hinge moments would be small in comparison with those of a plain-flap-type control.
Date:
February 26, 1952
Creator:
Fikes, Joseph E.
System:
The UNT Digital Library
Low-speed tests of a free-to-yaw model in two wind tunnels of different turbulence
Report presenting tests at low speeds in the low turbulence pressure tunnel and the stability tunnel in order to determine the extent of any resulting oscillations of a model mounted with freedom in yaw and to demonstrate the extent to which directional fluctuations in an air stream can be responsible for the oscillations.
Date:
February 26, 1952
Creator:
Cahill, Jones F. & Bird, John D.
System:
The UNT Digital Library
Preliminary investigation of the effects of a paddle balance on the control characteristics at transonic speeds of a tapered 45.58 degrees sweptback wing of aspect ratio 3 having a full-span flap-type control
Report presenting an investigation in the high-speed tunnel on a 45.58 degree sweptback wing to determine the effects of a paddle balance on the control characteristics of a full-span flap-type control. The wing had an aspect ratio of 3, a taper ratio of 0.5, and an NACA 64A010 airfoil section measured in a plane at 45 degrees to the plane of symmetry. Results regarding the hinge-moment characteristics, lift characteristics, and rolling moment-characteristics are provided.
Date:
February 26, 1952
Creator:
Moseley, William C., Jr.
System:
The UNT Digital Library
Pressure Measurements on an Ogive-Cylinder Body at Mach Number 4.04
Report presenting pressure-distribution tests on an ogive-cylinder configuration with and without longitudinal spoilers at Mach number 4.04. Spoilers were not found to cause any noticeable change in the body pressures in regions that contribute the largest amount of normal body force. Results regarding a comparison of experimentation and theory, flow separation, and cross-flow effects are also provided.
Date:
February 26, 1952
Creator:
Lord, Douglas R. & Ulmann, Edward F.
System:
The UNT Digital Library
The Resistivity of Cu₃Au During Neutron Irradiation
Report discussing an experiment in which samples of initially ordered and disordered copper-gold alloy were exposed to the neutron flux of a graphite moderated nuclear reactor. "Two specimens were irradiated at the same time and at the same position in the reactor. Their temperature was controlled at 80°C. Electrical resistivity measurements were made on the specimens during the course of the irradiation."
Date:
February 26, 1952
Creator:
Glick, H. L.; Brooks, F. C.; Witzig, W. F. & Johnson, W. E.
System:
The UNT Digital Library
Wind-Tunnel Investigation at High and Low Subsonic Mach Numbers of a Thin Sweptback Wing Having an Airfoil Section Designed for High Maximum Lift
Report presenting an investigation in the low-turbulence pressure tunnel to determine the lift, drag, and pitching-moment characteristics of a 45 degree sweptback wing with a 6-percent-thick symmetrical airfoil section designed for maximum lift at low speeds. Results regarding low-speed testing and high-speed testing are provided. Testing indicated that the new airfoil sections provided substantial improvements at low speeds without compromising performance at high speeds.
Date:
February 26, 1952
Creator:
Racisz, Stanley F. & Paradiso, Nicholas J.
System:
The UNT Digital Library
A 37,500 KW Power Reactor with Competitive Possibilities
The following report follows the study on economics of nuclear power generation using a light water reactor.
Date:
February 26, 1954
Creator:
Thompson, W. I. & Cohen, Karl
System:
The UNT Digital Library
[Herman Lurie's Weekly Report, February 26, 1954]
Herman Lurie's weekly report for the sugar market. Details include prices, distribution, sugar tons, and refiners.
Date:
February 26, 1954
Creator:
Lurie, Herman
System:
The Portal to Texas History
INVESTIGATIONS FOR THE PRODUCTION OF THORIUM METAL. Technical Progress Report for Seventh Quarter, December 1, 1953 to February 28, 1954
None
Date:
February 26, 1954
Creator:
Bleiweiss, J.C. & Raynes, B.C.
System:
The UNT Digital Library
[Imperial Sugar Company Sugar Stock and Sales Report: February 25 & 26, 1955]
Sugar Stock and Sales report for Imperial Sugar Company including a list of sugar sales for the date showing the amounts and estimated balance separated by location, raw sugar, and refined sugar sales.
Date:
February 26, 1955
Creator:
Imperial Sugar Company
System:
The Portal to Texas History
[Sugarland Industries, Balance Sheet, February 25, 1955]
Sugarland Industries balance sheet covering details for deposits and withdrawals.
Date:
February 26, 1955
Creator:
Sugarland Industries
System:
The Portal to Texas History