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Office of Scientific & Technical Information Technical Reports
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Congressional Research Service Reports
79
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24
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19
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13
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302 Matching Results
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NACA Investigation of Fuels Corresponding to Specification an-F-58 : Results of Studies in Single Combustors of J-33, J-34, J-35, and Nene Turbojet Engines
"The NACA is engaged in a program to evaluate the performance of fuels conforming to AN-F-58 specification in both full-scale engines and single combustors. This research memorandum constitutes an interim report on the results obtained on single cosibustors" (p. 1).
Date:
November 16, 1945
Creator:
Cleveland Laboratory Staff
System:
The UNT Digital Library
Methods of assaying for plutonium in biological materials
Since plutonium is manufactured at the Hanford Works in the 1940s, a study of its effect on biological materials is important. To determine the amount of plutonium deposited in a biological sample, it is necessary to have and accurate method for extracting plutonium from these samples. Some of the different methods for plutonium assay are reviewed and given in this paper dated November 16, 1948.
Date:
November 16, 1948
Creator:
Case, A. C.
System:
The UNT Digital Library
Results Obtained During Extension of U.S. Air Force Transonic-Flight Tests of XS-1 Airplane
Memorandum presenting limited data covering extension of the transonic-flight tests of the XS-1 airplane. The data show that successful flight to a Mach number of 1.35 has been achieved at altitudes up to 40,000 feet.
Date:
November 16, 1948
Creator:
Goodman, Harold R. & Drake, Hubert M.
System:
The UNT Digital Library
Static longitudinal aerodynamic characteristics of a 52 degree sweptback wing of aspect ratio 2.88 at Reynolds numbers from 2,000,000 to 11,000,000
Report presenting the effects of changes in Reynolds number on the longitudinal aerodynamic characteristics of a 52 degree sweptback wing with an aspect ratio of 2.88 and NACA 64(sub 1)-112 airfoil sections. The model was tested with the leading edge both smooth and rough. Results regarding force and pitching-moment results, flow observations, and discussion of force and moment characteristics are provided.
Date:
November 16, 1948
Creator:
Fitzpatrick, James E. & Foster, Gerald V.
System:
The UNT Digital Library
100 Areas technical activities report: Physics, November 1949
Work of the pile physics and experimental physics groups is reported. Theoretical work is also reported.
Date:
November 16, 1949
Creator:
Carson, A. B.
System:
The UNT Digital Library
Information for Reactor Safeguard Committee
This report provides information on reactivity, temperature coefficients and energy storage to the Reactor Safeguard Committee with regard to contemplated increases in power levels.
Date:
November 16, 1949
Creator:
Woods, W. K.
System:
The UNT Digital Library
Study of the canard configuration with particular reference to transonic flight characteristics and low-speed characteristics at high lift
Report presenting a study of the flight characteristics of the canard configuration at transonic and supersonic speeds. Known problems concerning the low-speed characteristics of the canard are also investigated.
Date:
November 16, 1949
Creator:
Mathews, Charles W.
System:
The UNT Digital Library
Flight Measurements of Base Pressure on Bodies of Revolution With and Without Simulated Rocket Chambers
Report presenting base pressures measured in flight on fin-stabilized bodies of revolution with and without rocket chambers and a converging afterbody at a range of Mach numbers. Pressures were found to be higher over the center portion of the bases of models with rocket chambers than edge pressures, while center base pressures on models without rocket chambers were lower than edge pressures.
Date:
November 16, 1950
Creator:
Peck, Robert F.
System:
The UNT Digital Library
Monthly Progress Report. Covering the Period October 15, 1950 to November 15, 1950.
None
Date:
November 16, 1950
Creator:
Bolt, R. O. & Carroll, R. G.
System:
The UNT Digital Library
Note on some observed effects of rocket motor operation on the base pressures of bodies in free light
Some measurements of the effects of rocket-motor operation on base pressure were obtained incidental to other research on some bodies in free flight. These data are presented and qualitatively analyzed. The analysis indicates that jet effects on drag are of sufficient importance to deserve consideration in the design of jet motor nozzles, especially for aircraft and missiles where the thrust and drag are of the same order of magnitude. The base-pressure changes induced by the jet should be considered in the structural design of the outer body skin on the aft portion of fuselages containing jets. (author).
Date:
November 16, 1950
Creator:
Purser, Paul E.; Thibodaux, Joseph G. & Jackson, H. Herbert
System:
The UNT Digital Library
Combustion-Chamber Performance Characteristics of a Python Turbine-Propeller Engine Investigated in Altitude Wind Tunnel
Combustion-chamber performance characteristics of a Python turbine-propeller engine were determined from investigation of a complete engine over a range of engine speeds and shaft horsepowers at simulated altitudes. Results indicated the effect of engine operating conditions and altitude on combustion efficiency and combustion-chamber total pressure losses. Performance of this vaporizing type combustion chamber was also compared with several atomizing type combustion chambers.
Date:
November 16, 1951
Creator:
Campbell, Carl E.
System:
The UNT Digital Library
Geology and Ore Deposits of Mesa V, Lukachukai District, Arizona
From abstract: Mesa V of the Lukachukai area is capped by Morrison sediments which dip gently eastward from the mountains to the mesa tip, where the strata are tilted sharply to the opposite dip by the Lukachukai monocline. The Salt Wash of Mesa V contains ore outcrops which indicate favorable intensity of mineralization at one horizon along a 2000-foot outcrop interval. Other scatted exposures indicate the existence of ore under much of the mesa surface.
Date:
November 16, 1951
Creator:
King, John W.
System:
The UNT Digital Library
Study of inadvertent speed increases in transport operation
From Summary: "Some factors relating to inadvertent speed and Mach number increases in transport operation are discussed with the object of indicating the manner in which they might vary with different qualities of the airplane and the minimum margins required to guard against reaching unsafe values. The speed increments and the margins required under several assumed conditions are investigated. The results indicate that, on a percentage basis, smaller margins should be required of high-speed airplanes than of low-speed airplanes to prevent overspeeding in inadvertent maneuvers."
Date:
November 16, 1951
Creator:
Pearson, Henry A.
System:
The UNT Digital Library
Evaporation and Spreading of Isooctane Sprays in High Velocity Air Streams
Memorandum presenting an investigation of the evaporation and spreading of isooctane sprays over a range of inlet-air conditions common in ram-jet engines. The total and liquid fuel distribution across the duct were determined. Over the specified ranges in the investigation, expressions were obtained which related the evaporation rate and degree of spreading of the sprays to the experimental variables.
Date:
November 16, 1953
Creator:
Bahr, Donald W.
System:
The UNT Digital Library
[Imperial Sugar Company Rates & Transportation, November 16, 1953]
Document detailing terms of the Stevedoring contract for Suderman including a discussion of the rate paid and Suderman's gross profits.
Date:
November 16, 1953
Creator:
Imperial Sugar Company
System:
The Portal to Texas History
Investigation of a Chromium Plus Aluminum Oxide Metal-Ceramic Body for Possible Gas Turbine Blade Application
"A metal-ceramic composition containing approximately 80 percent chromium plus 20 percent aluminum oxide (Al(sub 2)O(sub 3)) by weight has been investigated for possible gas-turbine blade use. The results of modulus-of-rupture, thermal-shock, and blade-performance studies indicate that this material may have adequate thermal-shock resistance; however, the strength for the application appears marginal" (p. 1).
Date:
November 16, 1953
Creator:
Hoffman, Charles A.
System:
The UNT Digital Library
Jet effects on flow over afterbodies in supersonic stream
From Summary: "Current NACA research on the subject of jet effects on the flow over afterbodies in a supersonic stream is briefly summarized. Several jet nozzle types installed in various afterbody configurations are considered for a wide range of operating conditions."
Date:
November 16, 1953
Creator:
Cortright, Edgar M., Jr. & Kochendorfer, Fred D.
System:
The UNT Digital Library
MECHANISMS OF FRACTIONATION
The mechanisms involved in fractionation as measured in samples obtained early from drone planes during the cloud rise or from manned aircraft a few hours later are discussed. A key problem in fractionation is the formation of the precipitate in the cloud, and an attcmpt is made to describe this mechanism. (W.D.M.)
Date:
November 16, 1953
Creator:
Magee, J.L.
System:
The UNT Digital Library
Preliminary drag and heat-transfer data obtained from air-launched cone-cylinder test vehicle over Mach number range from 1.5 to 5.18
From Summary: "An air-launched cone-cylinder test vehicle designed to obtain data at Mach numbers above 4.0 was rocket boosted from a release Mach number of 5.18. The vehicle was launched at an altitude of 35,000 feet and reached peak velocity of 5150 feet per second at 28,500 feet. The total-drag coefficient (based on maximum cross-sectional area) decreased gradually from 0.31 at a Mach number of 1.75 to 0.145 at a Mach number of 5.18, while the Reynold's number (based on body length) increased from 31 x 10 to the 6th power to 107 x 10 to the 6th power."
Date:
November 16, 1953
Creator:
Messing, Wesley E.; Rabb, Leonard & Disher, John H.
System:
The UNT Digital Library
QUARTERLY SUMMARY RESEARCH REPORT IN METALLURGY FOR APRIL, MAY, AND JUNE 1953
None
Date:
November 16, 1953
Creator:
unknown
System:
The UNT Digital Library
Some Comments on the Selection of Operating Temperatures for DPR
The results of this investigation indicate that maximum electric power generation can be obtained by selecting the turbine steam temperature within a range of plus/minus 30 degrees C. from an "idealized" steam temperature. This "idealized" steam temperature is shown to depend primarily on the maximum permissible uranium temperature. The minimum available condenser temperature and the temperature rise of the coolant in the pile effect the selection of the turbine steam temperature to lesser extent.
Date:
November 16, 1953
Creator:
Altmann, Manfred.
System:
The UNT Digital Library
The Thermal Expansion of LiH
The thermal expansion of LiH was studied in the 0 temperature range of 25 to 525O C. by means of x-ray diffraction. The coefficients of linear expansion were determined a s a = 4.2 x 10 - 5 and f3 = 1.9 x 10 - 8 . There is no evidence of any structure transitions in this range. The 0 cell constant for LiH at, 25 C. is a. = 4.083A.
Date:
November 16, 1953
Creator:
Zalkin, Allan
System:
The UNT Digital Library
Studies on Flash Burns: The Influence of Exposure Time and Irradiance on the Thermal Protective Qualities of Two Fabric Assemblies
None
Date:
November 16, 1954
Creator:
Mixter Jr., G. & Pearse, H. E.
System:
The UNT Digital Library
Solid State Division Semiannual Progress Report for Period Ending August 31, 1955
LITR Fluoride-Fuel Loop. — The inconel loop was dismantled for removal of the samples and for recovery of the uranium by using the remote cutting tools installed in a half cell of the Solid State Building. Disassembly proceeded without incident. An electric-arc cutting technique was developed for removal of the stainless steel enclosure around the pump bowl. Fission power and maximum flux were determined by irradiating a simulated loop, by heat-balance calculations, by radiochemical analyses for fission products in the fuel, by measuring the activation of cobalt foils attached to the loop, and by activation of the loop tubing itself. The determination of the power by these various methods gave 2.5 to 2.8 kw during operation of the loop, and the maximum power density was 0.4 kw/cc. Chemical analyses of the fuel were carried out to determine U, Zr, and the major constituents of inconel: Ni, Cr, and Fe.
Date:
November 16, 1955
Creator:
Billington, D. S. & Crawford, J. H., Jr.
System:
The UNT Digital Library