Nuclear Decay Schemes of Some of the Isotopes of Tantalum (Master's Thesis) (open access)

Nuclear Decay Schemes of Some of the Isotopes of Tantalum (Master's Thesis)

This report discusses a nuclear spectroscopic study of the radiations resulting from the electron capture decay of Ta-176, Ta-177, and Ta-178, analyzing data of nuclear decay schemes.
Date: January 25, 1956
Creator: Felber, Frank Frederick, Jr.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Texas Attorney General Opinion: S-202 (open access)

Texas Attorney General Opinion: S-202

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, John Ben Shepperd, regarding a legal question submitted for clarification: Statements of campaign contributions and expenditures which candidates are required to file.
Date: June 25, 1956
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
[Cladding of uranium tubes] (open access)

[Cladding of uranium tubes]

None
Date: January 25, 1956
Creator: McBride, C. C.
Object Type: Report
System: The UNT Digital Library
Flow test: CG-482 ``DR type`` rear pigtail with B, D, DR and F pile fittings (open access)

Flow test: CG-482 ``DR type`` rear pigtail with B, D, DR and F pile fittings

This letter transmits the data from the 189-D Hydraulics Laboratory flow test on three CG-482 rear pigtails. The tests were run with a standard B, D, Dr and F rear nozzle and rear Parker fitting over the range of flows and temperatures anticipated for early CG-558 operation. The data from the test are given. All three pigtails gave essentially identical results. For comparison the results of previous tests with present rear pigtails are also plotted.
Date: May 25, 1956
Creator: Bell, K. J.
Object Type: Report
System: The UNT Digital Library
The Constitution of Delta-Phase Alloys of the System Uranium-Molybdenum-Titanium (open access)

The Constitution of Delta-Phase Alloys of the System Uranium-Molybdenum-Titanium

None
Date: September 25, 1956
Creator: Saller, H. A.; Rough, F. A.; Bauer, A. A. & Doig, J. R.
Object Type: Report
System: The UNT Digital Library
Uranium Alloys for High-Temperature Application (open access)

Uranium Alloys for High-Temperature Application

None
Date: June 25, 1956
Creator: Saller, H. A.; Dickerson, R. F. & Murr, W. E.
Object Type: Report
System: The UNT Digital Library
PRESSURE SHELL STRESS ANALYSIS HRR (open access)

PRESSURE SHELL STRESS ANALYSIS HRR

None
Date: May 25, 1956
Creator: Lawrence, M.C.
Object Type: Report
System: The UNT Digital Library
HRT MODIFIED PRESSURIZER DESIGN (open access)

HRT MODIFIED PRESSURIZER DESIGN

None
Date: May 25, 1956
Creator: Michelson, C.
Object Type: Report
System: The UNT Digital Library
ESTIMATE OF THE COST OF PRODUCING NITROGEN 15 BY CHEMICAL EXCHANGE: DETERMINATION OF MINIMUM COST NITROX SYSTEM (open access)

ESTIMATE OF THE COST OF PRODUCING NITROGEN 15 BY CHEMICAL EXCHANGE: DETERMINATION OF MINIMUM COST NITROX SYSTEM

None
Date: April 25, 1956
Creator: Klima, B.B.
Object Type: Report
System: The UNT Digital Library
Effect of inlet-air-flow-distortions on steady-state performance of J65-B-3 turbojet engine (open access)

Effect of inlet-air-flow-distortions on steady-state performance of J65-B-3 turbojet engine

The effects of inlet-air-flow distortions on the performance of the J65-B-3 turbojet engine were determined over a range of altitudes from 15,000 to 50,000 feet at a flight Mach number of 0.8. Radial inlet-air-flow distortions apparently do not affect the radial distribution of pressure after the first few compressor stages, while the circumferential inlet-air-flow distortion carried completely through the engine. For the distortions investigated, at rated exhaust-gas temperature and fixed-area exhaust-nozzle operation, the primary effect of the radial inlet-air-flow distortions was to reduce the engine air flow, and the primary effect of the circumferential distortion was to impose a temperature profile on the turbine, both resulting in reduction of thrust.
Date: January 25, 1956
Creator: Smith, Ivan D.; Braithwaite, W. M. & Calvert, Howard F.
Object Type: Report
System: The UNT Digital Library
Experimental investigation of effect of cooling air on turbine performance of two turbojet engines modified for air-cooling (open access)

Experimental investigation of effect of cooling air on turbine performance of two turbojet engines modified for air-cooling

Report presenting an investigation at sea-level static conditions to determine the effects of radial discharge of cooling air from turbine rotor blades on turbine performance in two turbojet engines, one with a centrifugal compressor and the other with an axial-flow compressor. Results regarding the performance characteristics, efficiency comparisons, and some interpretation are provided.
Date: January 25, 1956
Creator: Smith, Gordon T.; Freche, John C. & Cochran, Reeves P.
Object Type: Report
System: The UNT Digital Library
Interference effects at Mach 1.9 on a horizontal tail due to trailing shock waves from an axisymmetric body with an exiting jet (open access)

Interference effects at Mach 1.9 on a horizontal tail due to trailing shock waves from an axisymmetric body with an exiting jet

Report presenting measurements of the normal force and pitching moment of a rectangular tail surface at Mach 1.9 to determine the interference effects due to trailing shock waves from an axisymmetric body with a jet exiting from a sonic nozzle in the base. The data were obtained at various jet pressure ratios and locations of tail with respect to the body. Results regarding tail location, tail pitching moment, and tail-shock-wave effects on base pressure are provided.
Date: January 25, 1956
Creator: Salmi, Reino J. & Klann, John L.
Object Type: Report
System: The UNT Digital Library
A Summary of Results Obtained During Flight Simulation of Several Aircraft Prototypes With Variable-Stability Airplanes (open access)

A Summary of Results Obtained During Flight Simulation of Several Aircraft Prototypes With Variable-Stability Airplanes

Memorandum describing an investigation using two airplanes, an F6F-3 and F-86A, each fitted with servo equipment for varying in flight the lateral and directional stability and handling characteristics, which have been flown by test pilots to simulate the predicted dynamic behavior of six prototype airplanes. The methods of simulation and the types and ranges of variables considered are presented and the results of the individual programs are discussed.
Date: May 25, 1956
Creator: McNeill, Walter E. & Creer, Brent Y.
Object Type: Report
System: The UNT Digital Library
The Subsonic Lateral and Longitudinal Static Stability Characteristics Up to Large Angles of Sideslip for a Triangular-Wing Airplane Model Having a Ventral Fin (open access)

The Subsonic Lateral and Longitudinal Static Stability Characteristics Up to Large Angles of Sideslip for a Triangular-Wing Airplane Model Having a Ventral Fin

"Wind-tunnel tests were conducted to determine the effects of a ventral fin on the static characteristics of a triangular-wing airplane model. Data were obtained for angles of sideslip up to 18 degrees at angles of attack of 0, 6, 12, and 18 degrees at Mach numbers from 0.25 to 0.94. The results of the tests indicated that the ventral fin did not produce as much yawing moment per unit of exposed area at any angle of sideslp as the vertical tail" (p. 1).
Date: October 25, 1956
Creator: Buell, Donald A. & Tinling, Bruce E.
Object Type: Report
System: The UNT Digital Library
Effect of combustion-chamber pressure and nozzle expansion ratio on theoretical performance of several rocket propellant systems (open access)

Effect of combustion-chamber pressure and nozzle expansion ratio on theoretical performance of several rocket propellant systems

Theoretical calculations of specific impulse to determine the separate effects of increasing the combustion-chamber pressure and the nozzle expansion ratio on the performance of the propellants, hydrogen-fluorine, hydrogen-oxygen, ammonia-fluorine and AN-F-58 fuel - white fuming nitric acid (95 percent). The results indicate that an increase in specific impulse obtainable with an increase in combustion-chamber pressure is almost entirely caused by the increased expansion ratio through the nozzle.
Date: May 25, 1956
Creator: Morrell, Virginia E.
Object Type: Report
System: The UNT Digital Library
Preliminary investigation of short two-dimensional subsonic diffusers (open access)

Preliminary investigation of short two-dimensional subsonic diffusers

Report presenting several short two-dimensional subsonic diffusers over a range of throat Mach numbers from 0.3 to 0.9. The designs incorporated an effective diffusion angle of approximately 30 degrees and an area ratio of 3. At a throat Mach number of 0.7, the resulting profile distortion of the unmodified 30 degree diffuser was diminished from about 11 to approximately 4 percent by using any of the configurations.
Date: May 25, 1956
Creator: Woollett, Richard R.
Object Type: Report
System: The UNT Digital Library
THE ELECTRICAL PROPERTIES OF URANIUM OXIDES (open access)

THE ELECTRICAL PROPERTIES OF URANIUM OXIDES

None
Date: September 25, 1956
Creator: Willardson, R.K.; Moody, J.W. & Goering, H.L.
Object Type: Report
System: The UNT Digital Library
EFFICIENCY OF FUEL SYSTEM ENTRAINMENT SEPARATOR DURING NORMAL OPERATION. HRT Report 11 A (7c)b. Work Period: September 27, 1955-November 25, 1955 (open access)

EFFICIENCY OF FUEL SYSTEM ENTRAINMENT SEPARATOR DURING NORMAL OPERATION. HRT Report 11 A (7c)b. Work Period: September 27, 1955-November 25, 1955

None
Date: May 25, 1956
Creator: Haubenreich, P.N.; Kolb, J.O.; Van Winkel, R. & Haynes, T.E.
Object Type: Report
System: The UNT Digital Library
Routine 107 basin inlet samples (open access)

Routine 107 basin inlet samples

None
Date: August 25, 1956
Creator: Reid, D. L.
Object Type: Report
System: The UNT Digital Library
The Electrical Properties of Uranium Oxides (open access)

The Electrical Properties of Uranium Oxides

From introduction: "The work described here was part of an integrated investigation of the fundamental properties of uranium oxides done for the Mallinckrodt Chemical Works. Electrical measurements were employed to characterize the oxides produced by various processes from different starting materials. The basic objective of the program was to determine those factors which affect the sintering characteristics of uranium dioxide."
Date: September 25, 1956
Creator: Willardson, Robert K.; Moody, Jerry W. & Goering, Harvey L.
Object Type: Report
System: The UNT Digital Library
Final Physics Report for the Engineering Test Reactor (open access)

Final Physics Report for the Engineering Test Reactor

This report is a summary of the physics design work performed on the Engineering Test Reactor. The ETR presents computational difficulties not found in other reactors because of the large number of experimental holes in the core. The physics of the ETR depends strongly upon the contents of the in-core experimental facilities. In order to properly evaluate the reactor' taking into account the experiments in the core, multi-region, two-dimensional calculations are required. These calculations require .the use of a large computer such as the Remington Rand Univac and are complex and expensive enough to warrant a five-stage program: 1. In the early stages of design, only preliminary two-dimensional calculations were performed .in order to obtain a rough idea of the general behavior of the reactor and its critical mass with tentative experiments in place. 2. A large amount of work was carried out in which the reactor was approximated as one with a uniform homogeneous core. With this model, detailed studies were carried out to investigate the feasibility and to obtain general design data on such points as the design and properties of the gray and black �control rods, the design of the beryllium reflector, gamma and neutron heating, the …
Date: June 25, 1956
Creator: Wolfe, I. B.
Object Type: Report
System: The UNT Digital Library
Final Physics Report for the Engineering Test Reactor (open access)

Final Physics Report for the Engineering Test Reactor

This volume continues with discussions of shielding provided for the heat exchanger building, concrete biological shield, top area and bottom area shielding, canal shielding, water shielding requirements during fuel element exchanges, and supplementary shielding requirements.
Date: June 25, 1956
Creator: Cegelski, W. & Machell, W.
Object Type: Report
System: The UNT Digital Library
ORNL ceramic information meeting trip report, October 1--3, 1956 (open access)

ORNL ceramic information meeting trip report, October 1--3, 1956

The meeting was opened by Leo Brewer, who spoke on a ``Self-Purifying Reactor.`` This is a reactor with theoretically designed-in separations processes, involving calculations to show that it is possible to vaporize many fission products away from fuels. The reactor would be analogous to a graphite rod impregnated with a uranium or thorium compound, vapor-coated with zirconium, and cooled by liquid metal. The fission products will vaporize when the rod gets hot enough, and will be carried out of the pile in a flow of helium. The details of what will happen to the rest of the pile at these temperatures, and of the materials of construction required to handle the situation are yet to be worked out. Remarks were heard from representatives of BMI, GE, Lockland, ANL, ORNL, KAPL, AEC and MCW on properties of uranium oxides and other refractory oxides.
Date: October 25, 1956
Creator: O`Leary, W. J.
Object Type: Report
System: The UNT Digital Library
Ultrasonic Testing With Lamb Waves (open access)

Ultrasonic Testing With Lamb Waves

A method is described whereby many types of flaws lying close to the surface of a metal can be ultrasonically detected, regardless of the time duration of the interrogating pulses. Lamb waves are established in the metal between a flaw and the surface by an ultrasonic beam which impinges at the proper angle of incidence. A suitably positioned receiver transducer picks up the waves to reveal the flaw. In this method the usually troublesome surface echo is eliminated from the receiver by an acoustic barrier, making it well suited for routine and automatic testing. Results of applying the technique to several testing problems are discussed.
Date: September 25, 1956
Creator: Worlton, D. C.
Object Type: Report
System: The UNT Digital Library