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Hydroxides as Moderator Coolants in Power-Breeder-Reactors

Description: The following report describes work that was udertaken to determine whether a homogeneous breeder reactor using an alkili metal hydroxide solution is capable of breeding.
Date: March 26, 1952
Creator: Dayton, Russell Wendt & Chastain, Joel W.
Partner: UNT Libraries Government Documents Department
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RADIATION HAZARDS FROM THE USE OP DENTAL X-RAY UNITS

Description: It is well known that for many years x-rays have been used in the dental profession as a potent diagnostic tool. Deprived of this means of exploration, the dentist and patient alike would be at a great disadvantage. In spite of the necessity of x-rays in the dental field, little has been done, however, to protect the patient and the dentist from unnecessary exposure. X-rays cannot immediately be felt or seen, and therein lies the hazard attending their use. What cannot be sensed is often ignore… more
Date: November 26, 1952
Creator: Nolan, W. E. & Patterson, H. W.
Partner: UNT Libraries Government Documents Department
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Airborne Radiometric Survey of the East Flank of the Big Horn Mountains, Wyoming and Montana

Description: Abstract: An airborne radiometric survey of parts of the east flank of the Big Horn Mountains was begun on June 23, and completed on August 27, 1952. An area of approximately 250 square miles was covered, and only two anomalies were found in the entire area. Flight lines were arranged in accordance with the geology of the area, particular attention being given to formations the stratigraphic equivalents of which are known to be uranium bearing in other areas. Two additional zones of radioactivi… more
Date: September 26, 1952
Creator: Jones, E. E.
Partner: UNT Libraries Government Documents Department
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A Large Diameter Vacuum Valve

Description: During the preliminary operaton of a volatilization apparatus it became apparent that a large stopcock in the high vacuum side of the oil diffusion pump was quite unsatisfactory. Since it was necessary to mount the stopcock in a relatively inaccessible location, the difficulty of turning the plug and the consequent necessity of regreasing the valve approximately every week were real problems. Also, it became apparent that an increased pumping speed through the valve would be required. Since a l… more
Date: May 26, 1952
Creator: Foster, K. W.
Partner: UNT Libraries Government Documents Department
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The Cladding of Beryllium

Description: No Description Available.
Date: February 26, 1952
Creator: Saller, H. A.; Keeler, J. R. & Szumachowski, E. R.
Partner: UNT Libraries Government Documents Department
open access

A LOW POWER WATER BOILER REACTOR NEUTRON SOURCE

Description: No Description Available.
Date: June 26, 1952
Creator: Biehl, A.T.; Fahrner, T.; Kash, S.W.; Balent, R.; Clark, E.; Howard, D.F. et al.
Partner: UNT Libraries Government Documents Department
open access

ON ANGULAR MOMENTUM

Description: The commutation relations of an arbitrary angular momentum vector can be reduced to those of the harmonic oscillator. This provides a powerful method for constructing and developing the properties of angular momentum eigenvectors. In this paper many known theorems are derived in this way, and some new results obtained. Among the topics treated are the properties of the rotation matrices; the addition of two, three, and four angular momenta; and the theory of tensor operators.
Date: January 26, 1952
Creator: Schwinger, J.
Partner: UNT Libraries Government Documents Department
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Empirical Cooling Correlation for an Experimental Afterburner With an Annular Cooling Passage

Description: Memorandum presenting an empirical cooling correlation for an experimental high-performance afterburner. The correlation relates the average combustion-chamber wall temperature at a station near the combustion-chamber outlet to the temperatures of the cooling air and combustion gas, and to the mass flows of the cooling air and combustion gas.
Date: June 26, 1952
Creator: Koffel, William K. & Kaufman, Harold R.
Partner: UNT Libraries Government Documents Department
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An investigation of the subsonic speed range of a full-span and a semispan model of a plane wing and of a cambered and twisted wing, all having 45 degrees of sweepback

Description: Report presenting a wind-tunnel investigation of two full-span and two semispan models with 45 degrees of sweepback, an aspect ratio of 5.5, and a taper ratio of 0.53. The lift and drag data obtained from tests of the semispan agreed well with data obtained on the full-span model. Results regarding a comparison of the data for the full-span and semispan models, full-span model data, and effect of surface roughness are provided.
Date: June 26, 1952
Creator: Shibata, Harry H.; Bandettini, Angelo & Cleary, Joseph
Partner: UNT Libraries Government Documents Department
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A Theoretical Investigation of the Effect of a Target Seeker Sensitive to Pitch Attitude on the Dynamic Stability and Response Characteristics of a Supersonic Canard Missile Configuration

Description: Report presenting a theoretical investigation of the longitudinal dynamic characteristics of an automatically stabilized supersonic canard missile configuration with a target seeker sensitive to changes in pitch altitude. Variables explored include seeker gain, time delay, and non-linearities, including dead spots in the seeker.
Date: August 26, 1952
Creator: Gates, Ordway B., Jr. & Schy, Albert A.
Partner: UNT Libraries Government Documents Department
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Investigation of lift and center of pressure of low-aspect-ratio, cruciform, triangular, and rectangular wings in combination with a slender fuselage at high supersonic speeds

Description: Report presenting tests to evaluate the usefulness of available theory for the calculation of lift-curve slope and center of pressure of low-aspect-ratio, triangular, and rectangular cruciform wings in combination with a long slender body. Tests were made over a range of Mach and Reynolds numbers based on model length.
Date: June 26, 1952
Creator: Canning, Thomas N. & Denardo, Billy Pat
Partner: UNT Libraries Government Documents Department
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Preliminary investigation of a rectangular supersonic scoop inlet with swept sides designed for low drag at a Mach number of 2.7

Description: Report presenting an investigation of a swept, rectangular, supersonic scoop inlet designed to have low external drag at the design Mach number of 2.7. The inlet was tested with two simulated fuselages with circular and rectangular cross sections. Results regarding shadow photographs, pressure recovery, wedge effects, drag, boundary-layer control, Mach number distribution in diffuser, wedge loads, aspect-ratio effects, and applicability of results are provided.
Date: November 26, 1952
Creator: Comenzo, Raymond J. & Mackley, Ernest A.
Partner: UNT Libraries Government Documents Department
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Empirical cooling correlation for an experimental afterburner with an annular cooling passage

Description: Report presenting an empirical cooling correlation for an experimental high-performance afterburner. The correlation equation is useful for shortening the experimental investigation of afterburner cooling characteristics inasmuch as it provides a method for interpolating the critical wall temperatures for other combinations of operating variables.
Date: June 26, 1952
Creator: Koffel, William K. & Kaufman, Harold R.
Partner: UNT Libraries Government Documents Department
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Hinge-Moment and Other Aerodynamic Characteristics at Transonic Speeds of a Quarter-Span Spoiler on a Tapered 45 Degree Sweptback Wing of Aspect Ratio 3

Description: Memorandum presenting an investigation at transonic speeds in the high-speed 7- by 10-foot tunnel to determine the hinge-moment and other aerodynamic characteristics of an inboard plug-type spoiler on a 45 degree sweptback wing of aspect ratio 3. The results indicated that the spoiler would be overbalanced at low projections through the speed range investigated and the for the same rolling moment, the spoiler hinge moments would be small in comparison with those of a plain-flap-type control.
Date: February 26, 1952
Creator: Fikes, Joseph E.
Partner: UNT Libraries Government Documents Department
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Pressure Measurements on an Ogive-Cylinder Body at Mach Number 4.04

Description: Report presenting pressure-distribution tests on an ogive-cylinder configuration with and without longitudinal spoilers at Mach number 4.04. Spoilers were not found to cause any noticeable change in the body pressures in regions that contribute the largest amount of normal body force. Results regarding a comparison of experimentation and theory, flow separation, and cross-flow effects are also provided.
Date: February 26, 1952
Creator: Lord, Douglas R. & Ulmann, Edward F.
Partner: UNT Libraries Government Documents Department
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Altitude Wind Tunnel Investigation of High-Temperature Afterburners

Description: From Introduction: "During previous investigations of afterburning conducted at the NACA Lewis laboratory (references 1 to 4, for example), the objective of obtaining high exhaust-gas temperatures and, consequently, maximum thrust augmentation was compromised to some extent in order to alleviate the problem of afterburner shell cooling. The primary objective of the investigation reported herein was therefore the attainment of maximum exhaust-gas temperature imposed by the cooling techniques pre… more
Date: June 26, 1952
Creator: Conrad, E. William & Campbell, Carl E.
Partner: UNT Libraries Government Documents Department
open access

Preliminary investigation of the effects of a paddle balance on the control characteristics at transonic speeds of a tapered 45.58 degrees sweptback wing of aspect ratio 3 having a full-span flap-type control

Description: Report presenting an investigation in the high-speed tunnel on a 45.58 degree sweptback wing to determine the effects of a paddle balance on the control characteristics of a full-span flap-type control. The wing had an aspect ratio of 3, a taper ratio of 0.5, and an NACA 64A010 airfoil section measured in a plane at 45 degrees to the plane of symmetry. Results regarding the hinge-moment characteristics, lift characteristics, and rolling moment-characteristics are provided.
Date: February 26, 1952
Creator: Moseley, William C., Jr.
Partner: UNT Libraries Government Documents Department
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Low-speed tests of a free-to-yaw model in two wind tunnels of different turbulence

Description: Report presenting tests at low speeds in the low turbulence pressure tunnel and the stability tunnel in order to determine the extent of any resulting oscillations of a model mounted with freedom in yaw and to demonstrate the extent to which directional fluctuations in an air stream can be responsible for the oscillations.
Date: February 26, 1952
Creator: Cahill, Jones F. & Bird, John D.
Partner: UNT Libraries Government Documents Department
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The Effective Downwash Characteristics at Transonic Speeds of a 6-Percent-Thick Wing With 47 Degrees of Sweepback in Combination With a Cylindrical Body as Determined From Force Measurements of a Horizontal Tail

Description: Memorandum presenting the effective downwash characteristics of a wing-body configuration and the body alone determined from lift measurements of a horizontal tail located 0.333 and 0.479 wing semispan above the body center line. The wing had a sweepback angle of 47 degrees, an aspect ratio of 3.5, a taper ratio of 0.2, and a thickness ratio of 0.06.
Date: November 26, 1952
Creator: Coppolino, Domenic A.
Partner: UNT Libraries Government Documents Department
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Cooling characteristics of an experimental tail-pipe burner with an annular cooling-air passage

Description: The effects of tail-pipe fuel-air ratio (exhaust-gas temperatures from approximately 3060 degrees to 3825 degrees R), radial distribution of tail-pipe fuel flow, and mass flow of combustion gas and the inside wall were determined for an experimental tail-pipe burner cooled by air flowing through and insulated cooling-air to combustion gas mass flow from 0.066 to 0.192 were also determined. Results regarding the reproducibility of combustion-gas temperature profiles, effect of variables on avera… more
Date: February 26, 1952
Creator: Koffel, William K. & Kaufman, Harold R.
Partner: UNT Libraries Government Documents Department
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Wind-Tunnel Investigation at High and Low Subsonic Mach Numbers of a Thin Sweptback Wing Having an Airfoil Section Designed for High Maximum Lift

Description: Report presenting an investigation in the low-turbulence pressure tunnel to determine the lift, drag, and pitching-moment characteristics of a 45 degree sweptback wing with a 6-percent-thick symmetrical airfoil section designed for maximum lift at low speeds. Results regarding low-speed testing and high-speed testing are provided. Testing indicated that the new airfoil sections provided substantial improvements at low speeds without compromising performance at high speeds.
Date: February 26, 1952
Creator: Racisz, Stanley F. & Paradiso, Nicholas J.
Partner: UNT Libraries Government Documents Department
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Convection of a pattern of vorticity through a shock wave

Description: An arbitrary weak spatial distribution of vorticity can be represented in terms of plane sinusoidal shear waves of all orientations and wave lengths (Fourier integral). The analysis treats the passage of a single representative weak shear wave through a plane shock and shows refraction and modification of the shear wave with simultaneous generation of an acoustically intense sound wave. Applications to turbulence and to noise in supersonic wind tunnels are indicated.
Date: September 26, 1952
Creator: Ribner, H. S.
Partner: UNT Libraries Government Documents Department
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