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Acoustic, thrust, and drag characteristics of several full-scale noise suppressors for turbojet engines

Description: From Introduction: " Considerable analytical and experimental research has been done to find means of reducing the noise levels of the turbojet transports. Noise levels can be decreased by engine redesign to reduce the jet-exit velocity (ref. 1), proper flight-climb techniques (ref. 2), and the use of noise-suppression exhaust nozzles (refs. 3 to 5). The present report is concerned with the last method."
Date: April 1958
Creator: Ciepluch, Carl C.; North, Warren J.; Coles, Willard D. & Antl, Robert J.
Partner: UNT Libraries Government Documents Department
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The adhesion of molten boron oxide to various materials

Description: This report includes the description and results of an experiment evaluating the amount of adhesion existing between the liquid boron oxide and various materials used in engines.
Date: April 1, 1958
Creator: Witzke, W. R.
Partner: UNT Libraries Government Documents Department
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Air Scattering of Co60 Gamma Rays: Theory Versus Experiment

Description: 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.
Partner: UNT Libraries Government Documents Department
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Airborne Reconnaissance Project, Ruby Range and Sweetwater Basin, Montana

Description: Abstract: A low-level airborne radioactivity survey of parts of Beaverhead and Madison Counties in southwestern Montana was undertaken from June 6 to October 14, 1955. Flying centered around the Ruby Range-Sweetwater Basin area and concentrated on the Precambrian metamorphic complex and Tertiary lake-bed sediments. No commercial uranium deposits were discovered, and no extensions were found of the few known small occurrences. Five areas of high background detected through the survey were invest… more
Date: April 1958
Creator: Pruitt, Robert G., Jr. & Magleby, Dan N.
Partner: UNT Libraries Government Documents Department
open access

AMENABILITY TESTING OF LaBAJADA ORE

Description: Data are presented on the results of acid and carbonate leaching studies on samples of ore from the LaBajada Mine of the Lone Star Mining Company, Santa Fe County, New Mexico. (auth)
Date: April 17, 1958
Creator: Johnson, R.U.
Partner: UNT Libraries Government Documents Department
open access

Analyses and correlations of HAPO rupture experience with natural uranium material

Description: One of the major factors restricting reactor power levels is the incidence of ruptured slugs. The primary purpose in studying ruptures is to determine how reactor operating variables affect rupture rates. With this knowledge reactor operating conditions may be adjusted or controlled in the manner that will optimize reactor production. In addition, knowledge of rupture rate relationships are useful in fuel element development and in overall economic studies of existing and proposed reactors and … more
Date: April 23, 1958
Creator: Bloomstrand, R.R. & Neef, W.I.
Partner: UNT Libraries Government Documents Department
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Analysis of Flight-Determined and Predicted Effects of Flexibility on the Steady-State Wing Loads of the B-52 Airplane

Description: Memorandum presenting an investigation of the steady-state wing loads conducted on a Boeing B-52 airplane over a range of Mach numbers and altitudes. Results regarding flight tests and air-load calculations are provided.
Date: April 23, 1958
Creator: Kuhl, Albert E.; Rogers, John T. & Little, Mary V.
Partner: UNT Libraries Government Documents Department
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Analysis of flight-determined and predicted effects of flexibility on the steady-state wing loads of the B-52 airplane

Description: From Introduction: "This paper presents the results obtained during the phase of the B-52 flight investigation concerned with the steady-state wing loads. Where possible, the effects of Mach number and flexibility on the measured load are analyzed and presented."
Date: April 23, 1958
Creator: Kuhl, Albert E.; Rogers, John T. & Little, Mary V.
Partner: UNT Libraries Government Documents Department
open access

Analysis of harmonic forces produced at hub by imbalances in helicopter rotor blades

Description: From Introduction: "First, an analysis of loads transmitted to the hub by balanced blades will be given. In the second section, the additional loads transmitted to the hub in a direction normal to the plane of rotation of the blades by imbalances in a rotor are derived. In the entire analysis, the results are given in terms of the forces transmitted to the hub by a single rotating helicopter blade in flight, and these are regarded as known or given."
Date: April 1958
Creator: Morduchow, M. & Muzyka, A.
Partner: UNT Libraries Government Documents Department
open access

An analysis of surface pressures and aerodynamic load distribution over the swept wing of the Douglas D-558-II research airplane at Mach numbers from 0.73 to 1.73

Description: Report presenting the wing-section pressure-distribution and wing-panel load characteristics of the Douglas D-558-II airplane for a range of Mach numbers and airplane normal-force coefficients. At subsonic speeds, the pressure distributions are characterized by a high negative-pressure peak with an abrupt pressure recovery as a result of the leading-edge expansion over the upper surface at moderate angles of attack.
Date: April 21, 1958
Creator: Taillon, Norman V.
Partner: UNT Libraries Government Documents Department
open access

Analysis of Turbulent Flow and Heat Transfer on a Flat Plate at High Mach Numbers With Variable Fluid Properties

Description: From Introduction: "In the turbulent case, however, the results of the various analyses disagree markedly because of the different assumptions made by various authors. These analyses are reviewed in references 1 to 3. The analysis is extended to flow and heat transfer in a boundary layer at high Mach numbers in this paper. (Some preliminary results were presented in ref. 11.)"
Date: April 1958
Creator: Deissler, R. G. & Loeffler, A. L., Jr.
Partner: UNT Libraries Government Documents Department
open access

An Analysis of Vortex Tubes for Combined Gas-Phase Fission-Heating and Separation of the Fissionable Material

Description: In order to achieve the high exhaust gas temperatures, which are desirable if the full potential of nuclear fission as an energy source for rocket propulsion is to be realized, it seems essential that the fissionable material be maintained in a gaseous mixture with the propellant. It is then necessary to separate the fissionable material from the propellant before discharging the latter, since the loss of fissionable material is prohibitive otherwise. This report presents an analytical evaluati… more
Date: April 11, 1958
Creator: Kerrebrock, J. L. & Meghreblian, R. V.
Partner: UNT Libraries Government Documents Department
open access

Antinucleons

Description: The idea of ''antiparticles'', as is well known, originated with Dirac, who in establishing the relativistic equations for the electron noted that besides the solutions corresponding to ordinary electrons there were also ''unwanted solutions'' corresponding to particles of electronic mass but of charge +e instead of the electronic charge - e. The discovery of the positron by CD Anderson offered a brilliant experimental confirmation of Dirac's prediction and gave the first example of an ''antipa… more
Date: April 1, 1958
Creator: Segre, Emilio
Partner: UNT Libraries Government Documents Department
open access

APPR-1 BURNOUT CALCULATIONS

Description: A general non-uniform burnup program was developed to determine the lifetime of the APPR-1. The calculation is performed using two one dimensional multi-region burnout calculations. The approach to the problem, the equations, and derivation of burnout equations are presented. The results are plotted and compared with the rod bank position as measured at Fort Belvoir. On the basis of these calculations the expected total energy release of the APR-1 is 13 Mw-yr. (auth)
Date: April 10, 1958
Creator: Williamson, T. G.
Partner: UNT Libraries Government Documents Department
open access

An Approximate Method for Design or Analysis of Two-Dimensional Subsonic-Flow Passages

Description: Note presenting a method for the design and analysis of two-dimensional subsonic-flow passages with isentropic nonviscous flow. The method is based on the relation between the pressure change across a stream tube and the centrifugal force resulting from the curvature of the flow. In an example, the method was applied to the design of an expanding elbow at each of two Mach numbers.
Date: April 1958
Creator: Valentine, E. Floyd
Partner: UNT Libraries Government Documents Department
open access

BEVATRON OPERATION AND DEVELOPMENT. XIII. Period covered February, March, April 1957

Description: During this entire quarter, the Bevatron was shut down for major rework of the magnet-coil air shroud and for the scheduled construction of a new experimental area at the north straight section. The existing west and northwest experimental areas were also improved. The Bevatron motor-generator sets and associated ignitrons were overhauled. At the end of this period, the magnet coil rework is concluded and the scheduled shutdown work is well advanced. (auth)
Date: April 1, 1958
Creator: Hartsough, W. & Salsig, W.
Partner: UNT Libraries Government Documents Department
open access

Biology and Medicine Semiannual Report for October 1957 Through March 1958

Description: Data are presented from the following studies: the radiation chemistry of pepsin, gelatin, methanol, benzene, and hexanes; the effects of irradiation of the pituitary in advanced cancer using high-energy particles from the 184-inch cyclotron; applications of ion beams in biological studies; the metabolism of strontium-90 and its relation to calcium metabolism in rats; hematological effects of low-level radiation doses in man; the influence of diet on serum lipoproteins; development of simplifie… more
Date: April 25, 1958
Partner: UNT Libraries Government Documents Department
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Blending UNH streams of different uranium enrichments

Description: The cost and feasibility of blending UNH streams of different uranium enrichments at HAPO was evaluated on a preliminary basis. Cases studied were blending 37.5% enriched UNH with depleted E metal UNH to yield a 0.947% enriched end product, and blending depleted E metal UNH with the depleted natural uranium to yield 0.7115% enriched end product. A reasonable degree of feasibility is indicated for such a blend program at HAPO.
Date: April 18, 1958
Creator: Campbell, B. F.
Partner: UNT Libraries Government Documents Department
open access

BLOWER SYSTEM DYNAMICS

Description: An analysis is presented of the dynamics of a turboblower acting together with its connecting circuit. This is to be distinguished from the aero- thermodynamics involved in the design of the blower itself. The effect on system stability of blower and circuit characteristics is discussed. (auth)
Date: April 16, 1958
Creator: Furgerson, W.T.
Partner: UNT Libraries Government Documents Department
open access

Blowing-type boundary-layer control as applied to the trailing-edge flaps of a 35 degree swept-wing airplane

Description: A wind-tunnel investigation was made to determine the effects on the aerodynamic characteristics of a 35 degree swept-wing airplane of applying blowing-type boundary-layer control to the trailing-edge flaps. Flight tests of a similar airplane were then conducted to determine the effects of boundary-layer control on the handling qualities and operation of the airplane, particularly during landing and take-off. The wind-tunnel and flight tests indicated that blowing over the flaps produced large … more
Date: April 30, 1958
Creator: Kelly, Mark W.; Anderson, Seth B. & Innis, Robert C.
Partner: UNT Libraries Government Documents Department
open access

Bulk outlet temperature limits and increased reactor power levels

Description: In a recent report by J.R. Young means of circumventing the present bulk temperature limits are suggested. These have definite merit but do not present an overall picture of the problem. Therefore this bulk temperature limit is reviewed in order to place the problem in its full perspective. A program of action is suggested that should land to either: Revised operating conditions and process piping to obtain higher power levels at the same bulk outlet temperature, or the completion of production… more
Date: April 21, 1958
Creator: Jones, S. S.
Partner: UNT Libraries Government Documents Department
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