Resource Type
Serial/Series Title
NACA Research Memorandums
184
Atomic Energy Commission Reports
50
NACA Technical Reports
33
Hanford Works Reports
26
HW (Series)
17
Oak Ridge National Laboratory Reports
17
University of California Radiation Laboratory Reports
17
UCRL (Series)
11
National Bureau of Standards Reports
8
CF (Series)
7
58 More
Country
States
Decade
Month
Day
365 Matching Results
Results open in a new window/tab.
Results:
1 - 24 of
365
next
The 1958 He4 Scale of Temperatures: Part 1. Introduction, Part 2. Tables for the 1958 Temperature Scale
Report containing information regarding He4 vapor pressure measurement as of 1958, the recent history of the vapor pressure temperature scale, and a series of tables containing these measurements.
Date:
June 17, 1960
Creator:
Brickwedde, F. G. (Ferdinand Graft), 1903-; van Dijk, H.; Durieux, M.; Clement, J. R. & Logan, J. K.
Object Type:
Report
System:
The UNT Digital Library
Abrasive Cutting of Irradiated Uranium
The preparation of radioactive metallurgical specimens for microscopic examination is one of the responsibilities of the Radiometallurgy Sub-Unit. An abrasive cut-off machine development program, based upon a previous experimental model, was undertaken to provide a method for sectioning of irradiated materials without undue personnel exposure or spread of contamination and finally to provide data for the design of an abrasive cutting unit for use in the work cells in the Radiometallurgy Building. A horizontal-feed type set-off machine, powered by a 7 1/2 hp motor with V-belt drive, has been developed for the submerged sectioning of irradiated uranium and is currently being used successfully to obtain samples for metallurgical, chemical and physical investigations without excessive personnel exposure or spread of radioactive contaminates.
Date:
September 17, 1953
Creator:
Boyd, Carl L.
Object Type:
Report
System:
The UNT Digital Library
The Aeolotropic Elastic Relations for Uranium Crystals
Handwritten report. This theoretical introduction to the anisotropic elastic properties of the orthorombic [sic] uranium crystal presents certain basic ideas which are useful in the study of experimental methods for determining preferred orientations in polycrystalline bodies. The method of analysis used to determine the elastic constants suggests explanations and correlations for the observations of sonic wave experiments on bars having preferred orientations and also serves as an introduction into the type of mathematical relations used in the study of anisotropic crystals.
Date:
December 17, 1954
Creator:
Merckx, K. R.
Object Type:
Report
System:
The UNT Digital Library
Aerial Radiometric and Magnetic Survey: Death Valley National Topographic Map, Nevada and California
"The results of analyses of the airborne gamma radiation and total magnetic field survey flown for the region identified as the Death Valley National Topographic Map NJ11-11 is presented in this report"--Abstract.
Date:
September 17, 1979
Creator:
Geodata International, Inc.
Object Type:
Report
System:
The UNT Digital Library
An Aerodynamic Analysis of the Autogiro Rotor With a Comparison Between Calculated and Experimental Results
This report presents an extension of the autogiro theory of Glauert and Lock in which the influence of a pitch varying with the blade radius is evaluated and methods of approximating the effect of blade tip losses and the influence of reversed velocities on the retreating blades are developed. A comparison of calculated and experimental results showed that most of the rotor characteristics could be calculated with reasonable accuracy, and that the type of induced flow assumed has a secondary effect upon the net rotor forces, although the flapping motion is influenced appreciably. An approximate evaluation of the effect of parasite drag on the rotor blades established the importance of including this factor in the analysis.
Date:
January 17, 1934
Creator:
Wheatley, John B.
Object Type:
Report
System:
The UNT Digital Library
Aerodynamic Heating and Boundary-Layer Transition on a 1/10-Power Nose Shape in Free Flight at Mach Numbers Up to 6.7 and Free-Stream Reynolds Numbers Up To 16 x 10(Exp 6)
Report presenting testing of a modified 1/10-power nose shape in free flight at Mach numbers up to 6.7. Measured heating rates were presented and compared with calculated values. Results regarding transition and comparison with previous investigations are provided.
Date:
June 17, 1957
Creator:
Garland, Benjamine J.; Swanson, Andrew G. & Speegle, Katherine C.
Object Type:
Report
System:
The UNT Digital Library
Aerodynamic Loads on an External Store Adjacent to an Unswept Wing at Mach Numbers Between 0.75 and 1.96
Report presenting an investigation to determine the aerodynamic characteristics of a sting-mounted Douglas Aircraft Company store in the presence of an unswept semispan cantilevered wing of aspect ratio 4.0. Results regarding wing loads and store loads are provided.
Date:
February 17, 1956
Creator:
Hadaway, William M.
Object Type:
Report
System:
The UNT Digital Library
Aerodynamic Loads on an External Store Adjacent to an Unswept Wing at Mach Numbers Between 0.75 and 1.96
Memorandum presenting an investigation in the blowdown tunnel of the pressure tunnel to determine the aerodynamic characteristics of a sting-mounted Douglas Aircraft Company store in the presence of, but not attached to, an unswept semispan cantilevered wing of aspect ratio 4.0. The influence of the store on the aerodynamic characteristics of the wing was also obtained.
Date:
February 17, 1956
Creator:
Hadaway, William M.
Object Type:
Report
System:
The UNT Digital Library
Aerodynamic Performance and Static Stability and Control of Flat-Top Hypersonic Gliders at Mach Numbers From 0.6 to 18
Memorandum presenting a study of aerodynamic performance and static stability and control at hypersonic speeds. In the first part of the study, the effect of interference lift is investigated by tests of asymmetric models with conical fuselages and arrow plan-form wings. In the second part, the aerodynamic performance and static stability and control characteristics of a hypersonic glider are investigated in somewhat greater detail.
Date:
September 17, 1958
Creator:
Syvertson, Clarence A.; Gloria, Hermilo R. & Sarabia, Michael F.
Object Type:
Report
System:
The UNT Digital Library
Aerodynamic Performance and Static Stability and Control of Flat-Top Hypersonic Gliders at Mach Numbers From 0.6 to 18
Report presenting a study of the aerodynamic performance and static stability and control at hypersonic speed using flat-top hypersonic gliders.
Date:
September 17, 1958
Creator:
Syvertson, Clarence A.; Gloria, Hermilo R. & Sarabia, Michael F.
Object Type:
Report
System:
The UNT Digital Library
Aerodynamic Performance of Several Techniques for Spike-Position Control of a Blunt-Lip Nose Inlet Having Internal Contraction; Mach Numbers of 0.63 and 1.5 to 2.0
Memorandum presenting a study to determine locations of pressure sensors for controlling the spike position of a blunt-lip, axisymmetric inlet with internal contraction. The inlet performance was determined at Mach numbers of 0.63 and 1.5 to 2.0 for airflow schedules corresponding to those of a given turbojet engine over a wide range of ambient temperatures. The use of the ratio of a throat static pressure to either a local total or the spike-tip total pressure provided a signal that could set nearly maximum pressure recoveries at Mach numbers of 1.7 to 2.0 and within 6 percent of maximum recovery at Mach 1.5.
Date:
September 17, 1957
Creator:
Anderson, Arthur A. & Weinstein, Maynard I.
Object Type:
Report
System:
The UNT Digital Library
Aerodynamics of Oscillating Control Surfaces at Transonic Speeds
Memorandum presenting a discussion of oscillating flap-type and all-movable controls with particular emphasis on the aerodynamic forces and moments at transonic speeds. Hinge-moment results from recent wind-tunnel and rocket-powered-model tests are summarized for trailing-edge flap-type controls to illustrate the effects of control hinge-line position and profile shape on one-degree-of-freedom flutter of this type of control.
Date:
June 17, 1957
Creator:
Thompson, Robert F. & Clevenson, Sherman A.
Object Type:
Report
System:
The UNT Digital Library
Air Scattering of Co60 Gamma Rays: Theory Versus Experiment
For Co60 source at 15 meters, the air-scattered gamma dose rate predicted by theory is excerpted from ORNL-1575, pp. 167-203. This is compared with experimental measurements for the same source and comparable geometry reported by Convair in CVAC-170T. After applying an appropriate correction for ground scattering as estimated in Mart-55-16T (Convair), the two results are found to be in substantial agreement.
Date:
April 17, 1958
Creator:
Moran, Rubert S.
Object Type:
Report
System:
The UNT Digital Library
Airfoil profiles for minimum pressure drag at supersonic velocities: Application of shock-expansion theory, including consideration of hypersonic range
From Summary: "A comparison of optimum profiles determined by the shock-expansion method of this report with corresponding profiles determined by the linearized-theory method of a previous report shows only small differences in shape at Mach numbers up to infinity even though the linearized theory at high supersonic Mach numbers breaks down completely insofar as the drag of the profile is concerned. Curves are presented which show that for thin airfoils the use of a trailing-edge thickness considerably greater than the theoretical optimum can result in an excessive drag penalty at moderate supersonic Mach numbers, though not at hypersonic Mach numbers."
Date:
September 17, 1952
Creator:
Chapman, Dean R.
Object Type:
Report
System:
The UNT Digital Library
The Alkaline Method for Treatment of High Radiation Level Aluminum Wastes
The method is based on caustic precipitation and centrifugation (which removes the Cs and small amounts of Sr, rare earths, Zr, Nb, and Ru). These are removed in the supernatant and run through a cation exchange column. This separates Zr-NB and Ru. The effluent is precipitated and the Zr-Nb is stored in an asphalt pit. The Ru then may be recovered from the precipitate. The precipitate from the original centrifugation is calcined, pressed and transported to a deep well.
Date:
January 17, 1957
Creator:
Higgins, I. R.
Object Type:
Report
System:
The UNT Digital Library
Altitude performance of pentaborane - JP-4 fuel blends in a modified J47 combustor
From Introduction: "Experimental investigations of the combustion characteristics of diborane, pentaborane, and pentaborane-hydrocarbon blends in modified turbojet combustors have been conducted at this laboratory at the request of the Bureau of Aeronautics, Department of the Navy, as part of Project Zip. Results of these single-combustor tests are presented in references 2 to 5."
Date:
April 17, 1957
Creator:
Branstetter, J. Robert & Kaufman, Warner B.
Object Type:
Report
System:
The UNT Digital Library
Altitude-wind-tunnel investigation of several afterburner configurations having moderately high burner-inlet velocities
From Introduction: "The screech investigation, reported in reference 1, included a large number of afterburner configurations. Several of these configurations are presented herein to show the effects of afterburner-inlet gas whirl pattern, flame-holder design, and fuel distribution on performance as determined by combustion efficiency, augmented thrust ratio, and special fuel consumption."
Date:
November 17, 1954
Creator:
Schulze, F. W.; Bloomer, H. E. & Miller, R. R.
Object Type:
Report
System:
The UNT Digital Library
Ames Project, Chemical Research - General Chemistry, Report for the Period of April 10 to May 10, 1944
Technical report. Areas covered are properties of uranium halides, properties of uranium nitrides, and hydride formation at high pressure.
Date:
June 17, 1944
Creator:
Spedding, F. H. (Frank Harold), 1902- & Wilhelm, H. A.
Object Type:
Report
System:
The UNT Digital Library
An Analog Study of the Influence of Internal Modifications to a Wing Leading Edge on Its Transient Temperature Rise During Highspeed Flight
Memorandum presenting an investigation made with an electrical heat-flow analog to determine the effect of internal modifications to a wing leading edge on the surface-temperature rise and temperature distribution for conditions of transient aerodynamic heating at high supersonic speeds. Results regarding the leading-edge temperature rise, influence of conduction on leading-edge temperature for skins of uniform thickness, and surface-temperature distribution are provided.
Date:
March 17, 1958
Creator:
Neel, Carr B.
Object Type:
Report
System:
The UNT Digital Library
Analysis of a Nuclear-Powered Liquid-Metal Ducted-Fan Cycle
From Introduction: "The results are presented for flight Mach numbers of 0.9 to 1.5 at an altitude of 50,000 feet. The effect of flight altitude on optimum engine design-point airplane performance is also shown."
Date:
December 17, 1952
Creator:
Rom, F. E. & Wachtl, W. W.
Object Type:
Report
System:
The UNT Digital Library
Analysis of a Nuclear-Powered Liquid-Metal Ducted-Fan Cycle
From Introduction: "The results are presented for flight Mach numbers of 0.9 to 1.5 at an altitude of 50,000 feet. The effect of flight altitude on optimum engine design-point airplane performance is also shown."
Date:
December 17, 1952
Creator:
Rom, F. E. & Wachtl, W. W.
Object Type:
Report
System:
The UNT Digital Library
Analysis of Bulk Shielding Facility Neutron Dosimeter Data
Technical report calculating "effective removal cross sections" for Pb, Fe and O from measurements of fast neutron does in the water surrounding the BSF reactor. The values for Pb and Fe agree quite well with those previously determined from Lid tank data, whereas that for O is somewhat lower. [From Abstract]
Date:
July 17, 1952
Creator:
Podgor, S.
Object Type:
Report
System:
The UNT Digital Library
Analysis of experimental sea-level transient data and analog method of obtaining altitude response for turbine-propeller engine with relay-type speed control
From Introduction: "This report shows correlation between actual transient data obtained from the engine and solutions to a simulated system set up on an analog computer. Data are presented for response of engine speed to changes in set speed when the power plant was being controlled by a relay-type electronic governor that acted to maintain set speed by varying propeller pitch. Correlation obtained for sea-level conditions between actual time data and analog solutions is discussed."
Date:
May 17, 1951
Creator:
Vasu, George & Pack, George J.
Object Type:
Report
System:
The UNT Digital Library
An Analysis of Lateral Stability in Power-Off Flight With Charts for Use in Design
"The aerodynamic and mass factors governing lateral stability are discussed and formulas are given for their estimation. Relatively simple relationships between the governing factors and the resulting stability characteristics are presented. A series of charts is included with which approximate stability characteristics may be rapidly estimated" (p. 1).
Date:
November 17, 1936
Creator:
Zimmerman, Charles H.
Object Type:
Report
System:
The UNT Digital Library