Resource Type
Serial/Series Title
NACA Research Memorandums
173
Atomic Energy Commission Reports
75
NACA Technical Reports
37
Hanford Works Reports
26
HW (Series)
21
Oak Ridge National Laboratory Reports
21
University of California Radiation Laboratory Reports
20
ORNL (Series)
14
BNL (Series)
9
Brookhaven National Laboratory Reports
9
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Natural Icing of an Axial-Flow Turbojet Engine in Flight for a Single Icing Condition
Memorandum presenting an investigation in natural icing conditions to determine the effect of ice formations on the performance of an axial-flow turbojet engine. A description of the change over time in tail-pipe temperature, engine jet thrust, fuel flow, ice collection, and acceleration qualities are provided.
Date:
August 12, 1948
Creator:
Acker, Loren W.
Object Type:
Report
System:
The UNT Digital Library
Tests of a centering spring used as an artificial feel device on the elevator of a fighter airplane
Report presenting tests to investigate the use of a simple centering spring, which had no variation of force gradient with impact pressure, as an artificial feel device for the elevator control of a fighter airplane. Testing was conducted using a Chance Vought F4U-4B airplane equipped with power controls. Results regarding the force experienced and effects of the feel system are provided.
Date:
September 12, 1952
Creator:
Adams, James J. & Whitten, James B.
Object Type:
Report
System:
The UNT Digital Library
Experimental investigation of effects of moderate sideslip on the flow fields near a 45 degree swept-wing-fuselage combination at low speed
The flow fields near a 45 degree swept-wing-fuselage combination at moderate angles of sideslip (plus-or-minus 8 degrees), as determined experimentally at low speed, are presented as variations with chordwise distance for various spanwise and vertical locations and angles of attack. The results indicated that for positions close to the fuselage (on and near the plane of symmetry) changes in the angle of sideslip caused large changes in the flow-field characteristics and particularly in the local angles of sideslip, which in some cases were nearly double the static angle of sideslip.
Date:
July 12, 1957
Creator:
Alford, William J., Jr. & King, Thomas J., Jr.
Object Type:
Report
System:
The UNT Digital Library
Completion Report An Automatic Fuel Element Stamping Machine
This document will be concerned with the design, operation and maintenance of an automatic fuel element stamping machine. In order to take advantage of automatic unloading and length checking at the Acme-Gridley lathes in the 313 Building, automatic stamping of fuel elements is desirable. This, along with the need for a permanent canning line identification, resulted in a request for a machine to automatically stamp HAPO fuel elements on a production basis.
Date:
January 12, 1960
Creator:
Allen, C. H.
Object Type:
Report
System:
The UNT Digital Library
High-Speed Aerodynamic Characteristics of a Model Tail Plane with Modified NACA 65-010 Sections and 0 Degree and 45 Degrees Sweepback
Memorandum presenting wind-tunnel tests that have been made to determine the aerodynamic characteristics of a model tail plane with modified NACA 65-010 sections and a tapered plan form. Results were obtained with the model tail plane unswept and swept back. The data show the lift, drag, pitching-moment, and hinge-moment coefficient variation with angle of attack and flap deflection at various Mach numbers.
Date:
January 12, 1948
Creator:
Anderson, Joseph L. & Martin, Andrew
Object Type:
Report
System:
The UNT Digital Library
A flight evaluation of the longitudinal stability characteristics associated with the pitch-up of a swept-wing airplane in maneuvering flight at transonic speeds
This report presents the results of flight measurements of longitudinal stability and control characteristics made on a swept-wing jet aircraft to determine the origin of the pitch-up encountered in maneuvering flight at transonic speeds. For this purpose measurements were made of elevator angle, tail angle of attack, and wing-fuselage pitching moments (obtained from measurements of the balancing tail loads).
Date:
September 12, 1951
Creator:
Anderson, Seth B. & Bray, Richard S.
Object Type:
Report
System:
The UNT Digital Library
Lateral Stability and Control Measurements of a Fighter-Type Airplane With a Low-Aspect-Ratio Unswept Wing and a Tee-Tail
Report presenting an investigation of the lateral stability and control effectiveness of a model of a fighter-type airplane model with a low-aspect-ratio and 3.4-percent-thick wing with negative dihedral at a range of Mach numbers, sideslip angles, and angles of attack. Results regarding the lateral characteristics at zero angle of attack, lifting conditions, and lateral and directional controls are provided.
Date:
June 12, 1956
Creator:
Arabian, Donald D. & Schmeer, James W.
Object Type:
Report
System:
The UNT Digital Library
A Study of Transparent Plastics for use on Aircraft, Special Report
"Various transparent organic plastics, including both commercially available and experimental materials, have been examined to determine their suitability for use as flexible windshields on aircraft, The properties which have been studied include light transmission, haziness, distortion, resistance to weathering, scratch and indentation hardness, impact strength, dimensional stability, resistance to water and various cleaning fluids, bursting strength at normal and low temperatures, and flammability" (p. 1).
Date:
May 12, 1937
Creator:
Axilrod, Benjamin M. & Kline, Gordon M.
Object Type:
Report
System:
The UNT Digital Library
Analysis for Oxide in Thorium Metal
Abstract. to estimate the oxygen picked up by thorium in casting a rapid method of running the acid insoluble content was developed. the quickest procedure consists of reacting with mixed acids, fuming with perchloric and filtration to separate the "free" thorium from the "combined". The precipitate is ignited and weighed as thorium dioxide.
Date:
May 12, 1945
Creator:
Ayers, A. S.
Object Type:
Report
System:
The UNT Digital Library
The Design Study of Fluid Engine Power Systems
From abstract: This report presents information generated during a six month feasibility study of an engine which uses a supercritical working fluid as the secondary portion of nuclear powered electric generating system.
Date:
April 12, 1963
Creator:
Baker, C. H.; Hunter, T. A.; Pauliukonis, R. S. & Pradhan, A. V.
Object Type:
Report
System:
The UNT Digital Library
Neutron Economy of Various Converter Reactor Designs
The following report determines how many neutrons are being absorbed in various converter reactor designs, how many neutrons leak from the reactor and the breakdown between fast and thermal leakage. Another interest this paper examines is to determine how many neutrons are absorbed in thorium in the resonance region, at thermal energy, and in the blanket.
Date:
December 12, 1951
Creator:
Balent, Ralph
Object Type:
Report
System:
The UNT Digital Library
Water Landing Investigation of a Hydro-Ski Model at Beam Loadings of 18.9 and 4.4
Report presenting an investigation of water landings in the impact basin with a model with a flat rectangular planing surface, a pulled-up bow, and a simulated landing wheel. Runs were made at several wave conditions, trim ranges, flight-path angles, and beam loadings. The results were found to be applicable in predicting loads and motions exhibited by a flat rectangular ski during impact with a water surface.
Date:
September 12, 1951
Creator:
Batterson, Sidney A.
Object Type:
Report
System:
The UNT Digital Library
Jet effects on base pressures of conical afterbodies at Mach 1.91 and 3.12
Report presenting data showing the effect of a jet on base pressure for a series of conical afterbody-jet-nozzle combinations with a range of boattail angles and base-to-jet diameter ratios. Generally, base pressure increased for increasing values of boattail angle, nozzle angle, jet temperature, and jet total pressure and for decreasing values of base-to-jet diameter ratio, jet Mach number, and free-stream Mach number.
Date:
August 12, 1957
Creator:
Baughman, L. Eugene & Kochendorfer, Fred D.
Object Type:
Report
System:
The UNT Digital Library
Microwave Impedance Measurements and Standards
Report presenting a survey and discussion of well-known microwave impedance measurement techniques. The discussion includes an introduction which emphasizes basic concepts and reflection coefficient-voltage standing-wave ratio relationships. Sources of error in the various measurement techniques are discussed and methods to reduce errors are presented. Methods using rotating loops and resonance lines are included and a brief discussion of microwave impedance standards is given.
Date:
August 12, 1965
Creator:
Beatty, Robert W.
Object Type:
Report
System:
The UNT Digital Library
Stability characteristics at low speed of a variable-sweep airplane model having a partially cambered wing with several chord-extension configurations
Report presenting an investigation to determine the effect of several chord-extension configurations at low speed on a variable-sweep airplane model with a partially cambered wing. Testing occurred at a designated Reynolds number based on the mean aerodynamic chord of the wing at 50 degrees sweep for average test conditions. Results regarding the effect of chord extensions at 50 degrees, 60 degrees, and 20 degrees sweep, effect of chord extensions on lateral stability, and a comparison with different wing modifications are provided.
Date:
February 12, 1954
Creator:
Becht, Robert E.
Object Type:
Report
System:
The UNT Digital Library
Simulated Altitude Performance of Combustors for the 24C Jet Engine: 2: 24C-4 Combustor
"The performance of a 24C-4 combustor was investigated with three different combustor baskets and five modifications of these baskets at conditions simulating static (zero-ram) operation of the 24C jet engine over ranges of altitude and engine speed to determine and improve the altitude operational limits of the 24C combustor. Information was also obtained regarding combustion characteristics, the fuel-flow characteristics of the fuel manifolds, and the combustor total-pressure drop. NACA modifications, which consisted of blocking rows of holes on the baskets, increased the minimum point on the altitude-operational-limit curve, which occurs at low engine speeds, for a narrow-upstream-end basket by 8000 feet (from 23, 000 to 31,000 ft) and for a wide-upstream-end basket by 21,000 feet (from 12, 000 to 34,000 ft)" (p. 1).
Date:
November 12, 1947
Creator:
Bernardo, Everett; Schroeter, Thomas T. & Miller, Robert C.
Object Type:
Report
System:
The UNT Digital Library
Design and Development of a High-Temperature High-Pressure Spectrophotometer System: Status Report
On 3/14/60 the Applied Physics Corporation was awarded a subcontract for the design and development of a high-temperature high-pressure spectrophotometer system based on the Cary Model 14pm Spectrophotometer insofar as possible, and consistent with our specifications, No. CTD-2, December 16, 1959.
Date:
November 12, 1960
Creator:
Biggers, R. E. & Wymer, R. G.
Object Type:
Report
System:
The UNT Digital Library
The Metabolism of Chyle Cholesterol in the Rat
Abstract: "Observations on the metabolism of chyle cholesterol in the rat show that exogenous cholesterol entering the systemic circulation in chyle exists in lipoproteins of low density (including chylomicrons) migrating with a high Sf rate (i.e.>400) in the ultracentrifuge. Following entry into the systemic circulation these molecules are rapidly removed from the plasma. This "clearing" of serum chyle cholesterol is a tissue phenomenon, the liver being the predominant site. Within the liver the chyle cholesterol esters are at least partially hydrolyzed; hydrolysis apparently does not occur in the plasma to any appreciable extent. After its entry into the liver exogenous cholesterol, if normally metabolized, presumably mixes with and becomes indistinguishable from cholesterol produced by endogenous synthesis."
Date:
May 12, 1954
Creator:
Biggs, Max William & Nichols, Alexander V.
Object Type:
Report
System:
The UNT Digital Library
Solid State Division Semiannual Progress Report For Period Ending February 28, 1955
This semiannual progress report and future reports will be published as two documents to permit a wider distribution of the unclassified material. The report numbers are assigned in sequence so that the two reports will fall together when filed by report number.
Date:
July 12, 1960
Creator:
Billington, D. S. & Crawford, J. H., Jr.
Object Type:
Report
System:
The UNT Digital Library
Effect of Conical and Flat Sting-Mounted Windshields on the Zero-Lift Drag of a Flare-Stabilized Bluff Body at Mach Numbers From 0.6 to 1.15
Report presenting zero-lift drag data for a flare-stabilized bluff body of fineness ratio 4.4 alone and with conical and flat windshields at a range of Mach and Reynolds numbers. The model with the flat windshield was found to have the lowest drag at Mach numbers up to 1.05, but there was little difference in drag among the models above 1.05.
Date:
September 12, 1957
Creator:
Blanchard, Willard S., Jr.
Object Type:
Report
System:
The UNT Digital Library
Radiation Problems of the Chemical Plant
"Absorption measurements have been made in a large body of water to evaluate the contribution to the radiation intensity produced by the degradation of radiation without absorption. Radiation intensities three times those expected from a simple exponential absorption were found. Scattering from the air of gamma radiation has been measured and has been found to agree satisfactorily with theoretical predictions. The penetration of radiation through curved pipes in shielding has been measured and been found to be a flat topped function. A 2" pipe bent in the arc of a circle of 7' chord and a 10' radius gives a reduction intensity over the intensity in air at the same distance of 2.5X10⁴."
Date:
December 12, 1942
Creator:
Borst, Lyle B. & Wollan, Ernest Omar
Object Type:
Report
System:
The UNT Digital Library
Life of Van Stone Corrective Measures
This report is a document summarizing all information available on life aspects of various measures proposed to reduce or eliminate corrosion of Van Stone flanger.
Date:
September 12, 1949
Creator:
Botsford, C. W. & Eschbach, E. A.
Object Type:
Report
System:
The UNT Digital Library
Study of Low Frequency Molecular Motions in HF, KHF2, KH2F3 and NaH2F3
The spectra of KHF2, KH2F3, NaH2F3, liquid and solid HF were measured between 1200 and 30 cm-1 by the inelastic scattering of "cold neutrons" (0.005e.v.). The spectrum of KHF2 is in agreement with previous infrared measurements and shows a peak at 147 mV corresponding to a deformation frequency v2 of the F-H-F group and a broad peak at 13 mV due to a libration of this group. The observed spectra for KH2F3, NaH2F3 solid and liquid HF were compared with that for KHF2 considering the known results that the F-F distance increases, the position of the H atom between the two fluorines becomes more asymmetrical, and the strength of the hydrogen bond decreases in going from the HF2- ion to H2F3- ion to HF. In this comparison the known structure of the H2F3- ion is considered as being intermediate between that of HF2- and the zig-zag hydrogen bonded chains in solid HF. As a result, the lines observed at 112 mV and 67 mV in the H2F3- spectra and in HF respectively are associated with the deformation frequency v2 of the H-F-H group in these compounds. In addition the spectra of H2F3- ions show a peak at a 15 mV …
Date:
March 12, 1963
Creator:
Boutin, Henri & Safford, G. J.
Object Type:
Report
System:
The UNT Digital Library
Characteristics of a Lead-Glass Photon Spectrometer and its Use in Studying the Absorption of Photons and Antinucleons
Thesis analyzing a lead-glass photon spectrometer and its use in studying the absorption of photons and antinucleons.
Date:
December 12, 1956
Creator:
Brabant, John Michael
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library