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Serial/Series Title
NACA Research Memorandums
183
Atomic Energy Commission Reports
63
Oak Ridge National Laboratory Reports
33
Hanford Works Reports
26
NACA Technical Reports
24
University of California Radiation Laboratory Reports
21
HW (Series)
16
ORNL (Series)
12
CF (Series)
11
AEC research and development report
10
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367 Matching Results
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Analysis of Rocket, Ramjet, Turbojet Engines for Supersonic Propulsion of Long-Range Missiles 2: Rocket Missile Performance
Memorandum presenting an investigation of the theoretical performance of a two-stage ballistic rocket missile with a centerbody and two parallel boosters for JP4-oxygen and ammonia-fluorine propellants. The missile using the ammonia-fluorine propellant weighs about one-half as much as a missile using JP4-oxygen. Results regarding the optimum missile and effect of variation of design parameters are provided.
Date:
October 11, 1954
Creator:
Huff, Vearl N. & Kerrebrock, Jack
Object Type:
Report
System:
The UNT Digital Library
Analytical and experimental studies of a divided-flow ram-jet combustor
From Introduction: "The investigation reported herein is a continuation of a ram-jet-combustor design program being conducted at the NACA Lewis laboratory. The purpose of this broad program is to establish basic design criteria for combustors operating over wide range of fuel-air ratio with low pressure losses and high combustion efficiency, and to utilize these design criteria in the development of practical ram-jet combustors."
Date:
January 11, 1954
Creator:
Dangle, E. E.; Friedman, Robert & Cervenka, Adolph J.
Object Type:
Report
System:
The UNT Digital Library
Analytical determination of local surface heat-transfer coefficients for cooled turbine blades from measured metal temperatures
Analytical methods are presented for the determination of local values of outside and inside heat-transfer coefficients and effective gas temperatures by use of turbine-blade-temperature measurements. The methods are derived for a number of configurations that can be applied to typical cooled-turbine-blade shapes as well as to other types of heat-transfer apparatus.
Date:
August 11, 1950
Creator:
Brown, W. Byron & Esgar, Jack B.
Object Type:
Report
System:
The UNT Digital Library
Application of Ascorbic Acid Method to Uranium in Salvage Solutions
Abstract: The erroneously high values for uranium content of salvage solutions as determined by the ether extraction-ascorbic acid procedure have been demonstrated to be due to the presence of colored organic materials in these solutions. Evaporation of such solutions to fumes of HC104 before extraction has been shown to be completely successful in preventing such interference while pretreatment with activated carbon is sufficiently successful for application in Control laboratories. Complete procedures for application of either protreatment and results of such application to composite salvage solutions received over a six-month period are included.
Date:
June 11, 1947
Creator:
Rothenberger, C. D. & Grimes, W. R.
Object Type:
Report
System:
The UNT Digital Library
Automatic control systems satisfying certain general criterions on transient behavior
"An analytic method for the design of automatic controls is developed that starts from certain arbitrary criterions on the behavior of the controlled system and gives those physically realizable equations that the control system can follow in order to realize this behavior. The criterions used are developed in the form of certain time integrals. General results are shown for systems of second order and of any number of degrees of freedom. Detailed examples for several cases in the control of a turbojet engine are presented" (p. 207).
Date:
October 11, 1950
Creator:
Boksenbom, Aaron S. & Hood, Richard
Object Type:
Report
System:
The UNT Digital Library
Average Physical Properties of Tuff in the Vicinity of Ground Zero, U12g.01 Tunnel, Nevada Test Site, Nye County, Nevada
This report presents the physical properties of tuff in the vicinity of the U12g.01 tunnel at the Nevada Test Site based off of two previous Technical Letters on the tunnel: Technical Letter: Area 12-1, and Technical Letter 12-1, Supplement 1.
Date:
January 11, 1963
Creator:
Emerick, W. L.; Snyder, R. P. & Hoover, D. L.
Object Type:
Report
System:
The UNT Digital Library
Backmixing in Pulse Columns II, Experimental Values and Effect of Several Variables
Seven runs were made with the system Penn. Ref. Co. "Supersol" (dispersed) water (continuous) to investigate the effects of pulse frequency, amplitude plate spacing, volume flow ratio, and throughput on backmixing, using the technique of continuous injection of a tracer solution into the packed section. Backmixing was found to be surprisingly insensitive to all the above variables over the range studied with the exception of pulse amplitude and continuous phase flow rate, showing greatest dependence on the later. Backmixing increased with decreasing continuous phase flow rate and increased with pulse amplitude.
Date:
August 11, 1953
Creator:
Swift, W. H. (Ward Henry), d 1929- & Burger, L. L.
Object Type:
Report
System:
The UNT Digital Library
Behavior of Transistors in a Magnetic Field
Experiments are described which show that magnetic fields can exert a controlling influence on the operating characteristics of point contact transistors. The effect is especially evident when the transistor is operated in its negative resistance region. The frequency of an oscillator can be varied, or a switch made to trigger by applying a magnetic field to the transistor. Some applications of the principle are suggested; many more are evident.
Date:
August 11, 1954
Creator:
Sander, Howard H.
Object Type:
Report
System:
The UNT Digital Library
A Brief Review of thermal Gradient Mass Transfer in Sodium and NaK Systems
The fact that material transport does occur under conditions of finite temperature difference in a flowing molten metal system was established. The rate mass transfer was thought to be either diffusion limited or solution rate limited. It is believed that the mass transfer of structural materials in Na or NaK systems is solution rate limited. The limiting process has not been qualitatively or quantitatively confirmed for the Inconel-Na or Inconel-NaK system. Increasing the maximum system wall temperature increases the amount of mass transfer, at least above 1300 deg F. The effect of the total temperature difference across the system on the amount of mass transfer was determined.
Date:
February 11, 1957
Creator:
DeVan, J. H. & West, J. B.
Object Type:
Report
System:
The UNT Digital Library
Calculated Performance of Nuclear Turbojet Powered Airplane at Flight Mach Number of 0.9
"An analysis was made at flight Mach number of 0.9 to estimate performance of nuclear-energy-powered turbojet engine and optimum engine operating conditions and to determine gross weight and load-carrying capacity of airplane powered by such an engine. The size of airplane required to carry disposable load of 20,000 pounds was found to vary from approximately 300,000 to 900,000 pounds depending on assumptions. For a reactor tube-wall mean temperature of 2500 degrees R, turbine-inlet temperature of 2000 degrees R, reactor-free-flow-area ratio of 0.33, reactor-shielding-material specific gravity of 6.0, shielding thickness of 3.0 feet, and altitude of 30,000 feet, the airplane gross weight required to carry a 20,000 payload is 545,000 pounds" (p. 1).
Date:
May 11, 1950
Creator:
Doyle, Ronald B.
Object Type:
Report
System:
The UNT Digital Library
Calculation of Shield Induced Gamma Radiation Escaping Through Openings in a Biological Shield -- Application to the HRT
A method was developed for calculating shield induced gamma radiation escaping through openings in a biological shield. The method was applied to the HRT and the results indicated that the contribution to the dose from induced activity in the HRT shield was around 0.1 r/hr and was insignificant in comparison to to other mechanisms contributing to the escape of gamma rays through shield openings.
Date:
January 11, 1957
Creator:
Claiborne, H. C. & Fowler, T. B.
Object Type:
Report
System:
The UNT Digital Library
Calculation of Wing Bending Moments and Tail Loads Resulting from the Jettison of Wing Tips During a Symmetrical Pull-Up
"A preliminary analytical investigation was made to determine the feasibility of the basic idea of controlled failure points as safety valves for the primary airplane structure. The present analysis considers the possibilities of the breakable wing tip which, in failing as a weak link, would relieve the bending moments on the wing structure. The analysis was carried out by computing the time histories of the wing and stabilizer angle of attack in a 10g pull-up for an XF8F airplane with tips fixed and comparing the results with those for the same maneuver, that is, elevator motion but with tips jettisoned at 8g" (p. 1).
Date:
December 11, 1947
Creator:
Boshar, John
Object Type:
Report
System:
The UNT Digital Library
Calibration of instruments for measuring wind velocity and direction
From Summary: "Signal Corps wind equipment AN/GMQ-1 consisting of a 3-cup anemometer and wind vane was calibrated for wind velocities from 1 to 200 miles per hour. Cup-shaft failure prevented calibration at higher wind velocities. The action of the wind vane was checked and found to have very poor directional accuracy below a velocity of 8 miles per hour. After shaft failure was reported to the Signal Corps, the cup rotors were redesigned by strengthening the shafts for better operation at high velocities. The anemometer with the redesigned cup rotors was recalibrated, but cup-shaft failure occurred again at a wind velocity of approximately 220 miles per hour."
Date:
September 11, 1950
Creator:
Vogler, Raymond D. & Pilny, Miroslav J.
Object Type:
Report
System:
The UNT Digital Library
Ceramic-Based Materials for High Temperature Service
The following report provides data that was discovered from a preliminary literature survey that was made to define the utility of the newer refractory ceramics or ceramic-based materials.
Date:
June 11, 1951
Creator:
Bates, W. A.
Object Type:
Report
System:
The UNT Digital Library
Characterization of Inclusion in Dingot Uranium
Abstract: The nonmetallic inclusions in both as-reduced and fabricated dingot uranium have been studied for comparison with those in ingot uranium. Special attention was paid to the hydride for the purpose of determining the amount and distribution in the various types of uranium. The types and distribution of other inclusions were also studied. It was found that the dingot uranium was of a higher quality than ingot uranium and was comparable to as-reduced derby uranium on the basis of over-all inclusion count. The hydrogen content in dingot uranium, however, was found to be appreciably higher than in either ingot or derby uranium.
Date:
January 11, 1957
Creator:
Cheney, Donald M. & Dickerson, Ronald F.
Object Type:
Report
System:
The UNT Digital Library
Chemistry Division, Section C-1, Quarterly Report July, August, and September 1952
Report describing the research and development activities related to nuclear chemistry and radiochemistry and basic chemistry conducted by the Argonne National Laboratory Chemistry Division, Section C-1.
Date:
January 11, 1952
Creator:
Manning, W. M. & Osborne, D. W.
Object Type:
Report
System:
The UNT Digital Library
Coefficients of discharge of fuel-injection nozzles for compression-ignition engines
"This report presents the results of an investigation to determine the coefficients of discharge of nozzles with small, round orifices of the size used with high-speed compression-ignition engines. The injection pressures and chamber back pressures employed were comparable to those existing in compression-ignition engines during injection. The construction of the nozzles was varied to determine the effect of the nozzle design on the coefficient. Tests were also made with nozzles assembled in an automatic injection valve, both with a plain and with a helically grooved stem" (p. 193).
Date:
September 11, 1930
Creator:
Gelalles, A. G.
Object Type:
Report
System:
The UNT Digital Library
Cofit - A 709 Program for Determining Extrapolation Length from Horizontal Traverse Data
A program has been prepared for the 709 computer which will determine extrapolation length from horizontal traverses measurements taken in an exponential pile. The flux across the pile is assured to fit a cosine function of the form y = A cos B (X-C)
Date:
August 11, 1959
Creator:
Matsumoto, D. D.
Object Type:
Report
System:
The UNT Digital Library
Column Adsorption Methods in Analytical Chemistry
Technical report. Numerous application of various column adsorption techniques to inorganic analytical chemistry have appear in the literature. The comparatively recent introduction of ion exchange resins has resulted in the development of efficient, simple, and rapid column adsorption methods. the principal service of column adsorption methods to analytical chemistry is that of providing a relatively simple means of separating an element in a sufficiently pure state so that a direct precipitation, ignition, and weighting, for example, will suffice to complete the quantitative analysis. Systems involving uranyl nitrate will naturally be emphasized in this report but information will be included concerning the separation of the individual members of a series from one another, such as in the alkaline earths and the rare earths.
Date:
January 11, 1946
Creator:
Schubert, Jack
Object Type:
Report
System:
The UNT Digital Library
The comparative performance of an aviation engine at normal and high inlet air temperatures
"This report presents some results obtained during an investigation to determine the effect of high inlet air temperature on the performance of a Liberty 12 aviation engine. The purpose of this investigation was to ascertain, for normal service carburetor adjustments and a fixed ignition advance, the relation between power and temperature for the range of carburetor air temperatures that may be encountered when supercharging to sea level pressure at altitudes of over 20,000 feet and without intercooling when using plain aviation gasoline and mixtures of benzol and gasoline" (p. 409).
Date:
February 11, 1927
Creator:
Gardiner, Arthur W. & Schey, Oscar W.
Object Type:
Report
System:
The UNT Digital Library
A Comparison of Elementary Criticality Calculations with Experimental Results
Several experiments have been performed at ORNL with light water solutions of uranyl nitrate (highly enriched in either U^233 or U^235) in an essentially bare sphere 27 inches in diameter. This report presents the results of several calculations with elementary bare reactor theory and a discussion of the observed discrepancies between the calculated and experimental results. If the observed critical concentration is used in the calculations, the calculated effective multiplication constant is less than unity' thus a higher critical concentration would be predicted than is actually observed.
Date:
June 11, 1959
Creator:
Nestor, C. W., Jr
Object Type:
Report
System:
The UNT Digital Library
Comparison of Hovering Performance of Helicopters Powered by Jet-Propulsion and Reciprocating Engines
Report presenting an investigation of the maximum hovering time, or the time that a helicopter can sustain itself without motion, for helicopters using a reciprocating engine, by ramjet engines at the tips of rotor blades, and by pulse-jet engines at the tips of rotor blades. Testing showed that the reciprocating engine permitted much longer hovering time than the jet-propulsion engines, but the jet-propulsion engines were much lighter and could lift greater disposable loads.
Date:
June 11, 1948
Creator:
Brightwell, Virginia L.; Peters, Max D. & Sanders, J. C.
Object Type:
Report
System:
The UNT Digital Library
Comparison of measured and predicted indicated angles of attack near the fuselages of a triangular-wing wind-tunnel model and a swept-wing fighter airplane in flight
Report presenting measurements of the local flow angles near the fuselages of a triangular-wing wind-tunnel model and an F-86A-5 airplane in flight using airflow detectors on the fuselages. A comparison of the measured and predicted flow angles is provided. Results indicated that the accuracy of the predicted indicated angles of attack was not sufficient to eliminate the necessity of a flight calibration of a detector mounted on a fuselage.
Date:
March 11, 1953
Creator:
McFadden, Norman M.; McCloud, John L., III & James, Harry A.
Object Type:
Report
System:
The UNT Digital Library
Comparison of the Thermal Conductivity, Electrical Resistivity, and Seebeck Coefficient of a Hight-Purity Iron and Armco Iron to 1000 [degrees] C
The thermophysical properties of Armco iron such as thermal conductivity, electrical resistivity, and Seebeck coefficient have been extensively investigated and reviewed up to 1000 degrees C. Few investigations of such properties have been made on high purity iron. If such a study is made using the same apparatus to determine the properties of two purity levels of iron, then several significant intercomparisons can be made which add meaning to data on a single material. The systemic errors for a single apparatus are the same, therefore comparison of a property of two similar materials is more significant. A comparison of the property changes with temperature and purity can show the effects of impurities on the mechanisms contributing to a property and allows prediction of the properties of iron as a function of purity. For these reasons a study was initiated on the high-purity iron for comparison to Armco iron.
Date:
August 11, 1964
Creator:
Moore, J. P.; Fulkerson, W. & McElroy, D. L.
Object Type:
Report
System:
The UNT Digital Library