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14,702
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3,616
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2,756
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2,105
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1,680
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530
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275
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100
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73
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1,967
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1,476
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578
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542
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416
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372
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369
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24,316 Matching Results
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Accelerator Beam Pulsing System With Extremely Wide Range of Pulse Lengths and Pulse Repetition Rates
The following document describes the usage and results of sending pulsed beams of electrically charged particles with electrically wide range of pulse lengths and pulse repetition rates.
Date:
June 28, 1960
Creator:
Aaland, Kristian
Object Type:
Report
System:
The UNT Digital Library
Economic Evaluation of a 300 Mwe Fast Supercritical Pressure Power Reactor
Report regarding Hanford Laboratories' 300 Mwe fast supercritical pressure power reactor. This includes descriptions of the plant and reactor, their operations, safety systems, and plant economics. Appendices begin on page 107.
Date:
December 9, 1963
Creator:
Aase, D. T.; Fox, J. C.; Hennig, R. J.; Peterson, R. E.; Stewart, S. L. & Toyoda, K. G.
Object Type:
Report
System:
The UNT Digital Library
STEAM-COOLED FAST BREEDER REACTORS.
None
Date:
January 1, 1968
Creator:
Aase, D.T.
Object Type:
Report
System:
The UNT Digital Library
External-Fuel Thermionic Reactors
The concept of the external-fuel thermionic converter, in which the fuel surrounds an inner emitter annulus, is introduced and the major advantages of its use in a thermionic reactor are discussed. In-core reactors, ranging from 15-ekW to megawatts, can be designed based on external-fuel converter modules of fixed emitter and collector dimensions. Sizes and weights of typical reactors in this power range are shown.
Date:
May 1, 1968
Creator:
Abbate, M. J.; Eisen, C. L.; Raab, B. & Schock, Alfred
Object Type:
Report
System:
The UNT Digital Library
Optical Mapping of Oak Ridge Research Reactor Experiment Tubes
Report issued by the Oak Ridge National Laboratory discussing optical mapping of experiment tubes. Descriptions of experiment equipment, and designs of the tubes are presented. This report includes tables, illustrations, and photographs.
Date:
April 1965
Creator:
Abbatiello, A. A.
Object Type:
Report
System:
The UNT Digital Library
REMOTELY CONTROLLED SHEARING OF PIPE AND STRUCTURAL MEMBERS
A shearing tool was developed for remotely controlled severing of pipes or structural members. The shear is rotated about its axis in a wrist motion by the pumped hydraulic fluid that also powers the shear blade. It can be used in a stationary mounting or suspended from a crane. A C-shaped support for the shear was designed to pass through a small top opening of a shielded cell. The controls for manipulating the shear pass through or along the Cframe. The shear jaw opens to 5 in. in height and 7 in. in width, and the total weight of the tool is only 575 lb. It was used to cut metal sections 4 3/4 in. thick and 4-in. sched.-40 stainless steel pipe. (auth)
Date:
December 28, 1961
Creator:
Abbatiello, A. A.
Object Type:
Report
System:
The UNT Digital Library
Aircraft Reactor Test Removal and Disassembly
Report documenting the dissection of a reactor called the Aircraft Reactor Test (ART). Includes the removal of the reactor from its test cell, component removal, and plans for a for a disassembly building facility.
Date:
1960?
Creator:
Abbatiello, A. A. & McQuilkin, F. R.
Object Type:
Report
System:
The UNT Digital Library
Three-Dimensional Inviscid Flow About Supersonic Blunt Cones at Angle of Attack - III: Coupled Subsonic and Supersonic Programs for Inviscid Three-Dimensional Flow
The three-dimensional ideal gas flow in the shock layer of a blunted supersonic cone at an angle of attack is calculated using two asymptotic solutions. The first solution calculates the steady state flow in the subsonic nose region by obtaining a time-dependent solution of the hyperbolic equations using numerical techniques. Internal, nonboundary points are calculated using a Lax-Wendroff numerical type technique. Boundary points, shock and body surface, are computed using a time-dependent method of characteristics. When a steady state solution is reached the flow properties on a surface of constant {theta}, (where the Mach number is everywhere > 1) are used for initial data for the afterbody solution. The afterbody solution, using polar coordinates (r, {theta}, {phi}) assumes at r{sub 0} an arbitrary set of initial conditions provided by the nose region solution and computes the downstream flow as a function of {theta}, {phi}, and r until an asymptotic state independent of r develops. The interior mesh points are again calculated using a Lax- Wendroff type technique and the boundary points by a method of characteristics. This report covers the coupling of the time-dependent and radius (r) dependent solutions. Instructions are given for the operation of the resulting Fortran code. …
Date:
September 1, 1968
Creator:
Abbett, M. J. & Fort, R.
Object Type:
Report
System:
The UNT Digital Library
Low-Detonation-Pressure Explosives
None
Date:
December 1, 1964
Creator:
Abegg, M. T.; Fisher, H. J.; Lawton, H. C. & Weatherill, W. T.
Object Type:
Report
System:
The UNT Digital Library
Effects of gamma-ray irradiation on M1 propellant
Samples of M1 single-base propellant were exposed to 10{sup 5}, 10{sup 6}, and 10{sup 7}r of Co{sup 60} gamma rays. Burning rates were determined over a pressure range of 600 to 2600 psi at -40{degrees}, 21{degrees}, and 71{degrees}C. A statistical study indicated no significant change in the burning rate and a small but statistically significant increase (6%) in the exponential factor n after the 10{sup 7}r dose. Visible deterioration resulted, as the color changed from yellow to dark brown and the surface became uneven. In view of these marked visible effects, the slight change in burning rate is surprising. One sample exposed to 5 {times} 10{sup 8}r showed severe blistering, swelling, and contraction, and embrittlement causing fracture. Nitrogen Taliani tests conducted at 110{degrees}C indicated that the decomposition rate is decreased by exposure to 10{sup 5}r, is decreased less by 10{sup 6}r, and remains unchanged after 10{sup 7}r exposure. Chemical analysis showed that the percentage of 2-nitrodiphenylamine increases with dose by a factor of 7 at 10{sup 7}r, while, at the same time, the nitrogen content of the nitrocellulose decreases with increasing dose. This indicates that a substantial part of the nitrocellulose decomposition product had reacted with the diphenylamine stabilizer. It …
Date:
April 1, 1964
Creator:
Abel, J.E.; Mapes, J.E. & Levy, P.W.
Object Type:
Report
System:
The UNT Digital Library
Isotopic Analysis of Boron as Trimethyl Borate
Boron-impregnated polyethylene tape was irradiated in the Engineering Test Reactor Critical Facility to study the effect of boron as a burnable poison in reactor fuel. Isotopic analysis of the boron was performed with a conventional CEC Model 21-103 mass spectrometer. The tape was distilled off and the residual boron was converted to trimethyl borate. The reaction mixture was analyzed without separation. Good precision was obtained with samples containing less than 0.5 mg. boron. Features of the mass spectrum of trimethyl borate are discussed. Other applications of the method are suggested. (auth)
Date:
January 28, 1960
Creator:
Abernathey, R. M.
Object Type:
Report
System:
The UNT Digital Library
Determination of Heavy Water Purity by Infrared Absorption
The practical application of heavy water purity determination by infrared absorption spectroscopy using standard laboratory equipment was demonstrated in connection with the operation of heavy water-moderated Special Power Excursion Reactor Test (SPERT II) Facillty at the NRTS. (auth)
Date:
January 16, 1962
Creator:
Abernathey, R. M. & Morgan, T. D.
Object Type:
Report
System:
The UNT Digital Library
Filling and Emptying System, Cannelton Main Lock, Ohio River, and Generalized Tests of Sidewall Port Systems for 110- by 1200-ft Locks: Hydraulic Model Investigation
Report providing the results of a hydraulic model investigation of the Cannelton Lock proposed for construction on the Ohio River. It includes detailed information about the tests and suggested dimensions and features of the final lock.
Date:
February 1966
Creator:
Ables, Jackson H., Jr. & Boyd, M. B.
Object Type:
Report
System:
The UNT Digital Library
Filling and Emptying System, Dardanelle Lock, Arkansas River: Hydraulic Model Investigation
Report on investigations into the construction of a lock in the Arkansas River including results of model tests and recommendations.
Date:
April 1969
Creator:
Ables, Jackson H., Jr. & Boyd, M. B.
Object Type:
Report
System:
The UNT Digital Library
Filling and Emptying Systems, Low-Lift Locks, Arkansas River Project: Hydraulic Model Investigation
Results of a hydraulic model investigation based on locks in the Arkansas River before the construction of additional locks. "Model studies of the filling and emptying system proposed for use at the low-lift locks in the Arkansas project were conducted to confirm the adequacy of the original design hydraulic system, and to develop, if needed, improvements in the system" (p. 2).
Date:
November 1966
Creator:
Ables, Jackson H., Jr. & Boyd, M. B.
Object Type:
Report
System:
The UNT Digital Library
Filling and Emptying Systems, Millers Ferry and Jones Bluff Locks, Alabama River, Alabama: Hydraulic Model Investigation
Report providing results of hydrualic model investigations to test a new type of lock filling and emptying system to determine the final suggested construction for the Millers Ferry Lock in the Alabama River.
Date:
March 1966
Creator:
Ables, Jackson H., Jr. & Boyd, M. B.
Object Type:
Report
System:
The UNT Digital Library
TOTAL RADIATION-INDUCED GENETIC DAMAGE IN ENTIRE GENOMES OF DROSOPHILA MELANOGASTER. Technical Progress Report.
None
Date:
October 31, 1969
Creator:
Abrahamson, S.
Object Type:
Report
System:
The UNT Digital Library
$sup 238$Pu ISOTOPIC FUEL FORM DATA SHEETS.
None
Date:
January 1, 1968
Creator:
Abrahamson, S.G.; Carfagno, D.G. & Kokenge, B.R.
Object Type:
Report
System:
The UNT Digital Library
TOTAL RADIATION-INDUCED GENETIC DAMAGE IN ENTIRE GENOMES OF DROSOPHILA MELANOGASTER. Technical Progress Report.
Drosophila melanogaster adults are irradiated and then mated to flies containing genetic markers and/or crossover suppressors in all chromosomes. Appropriate genetic schemes are followed to obtain balanced stocks of entire treated genomes. Each chromosome of each genome is observed for visibles, lethals, detrimentals and sterility factors. Tests are made for translocations involving any combination of chromosomes. All chromosomes of each genome are examined cytologically for possible deficiencies, inversions, transpositions, etc. and to determine the break points of the translocations. It is believed that a study such as this will give us a far better idea of the overall magnitude of radiation-induced genetic damage and a better insight into the nature of this damage, expecially the inter-relationships between the different kinds of genetic alterations, than has heretofore been possible with studies of selected types of damage in selected chromosomes or loci.
Date:
July 28, 1968
Creator:
Abrahamson, Seymour
Object Type:
Report
System:
The UNT Digital Library
Handbook of Mathematical Functions With Formulas, Graphs, and Mathematical Tables
A handbook of mathematical functions that is designed to provide scientific investigations with a comprehensive and self-contained summary of the mathematical functions that arise in physical and engineering problems.
Date:
November 1967
Creator:
Abramowitz, Milton & Stegun, Irene A.
Object Type:
Report
System:
The UNT Digital Library
MERCURY PUMP DEGRADATION.
None
Date:
January 1, 1963
Creator:
Abramson, P.B.
Object Type:
Report
System:
The UNT Digital Library
NEUTRON TISSUE DOSE AT LARGE DISTANCES FROM AN ELEVATED UNSHIELDED REACTOR
The neutron tissue dose at large distances from a fission source was studied by using a water-filled phantom and four different detectors: a BF/sub 3/ counter, a polyethylenelined ethylene-filled proportional counter, indium foils, and nuclear emulsions. The source of fission neutrons was the ORNL Health Physics Research Reactor which was attached to a hoist which was in turn installed on a 1530-foot tower. The reactor could be operated at any elevation from 27 to 1500 ft. The phantom studies were made at horizontal distances from 250 to 1500 yards from the tower. Dose contributions from recoil protons H/sup 1/ (n, gamma )D/sup 2/ and N/sup 14/(n,p)C/sup 1 reactions are considered. (auth)
Date:
March 11, 1963
Creator:
Aceto, H. Jr.; Pick, M.A. & Stephens, L.D.
Object Type:
Report
System:
The UNT Digital Library
Analysis of Electric Energy Usage in Air Force Houses Equipped with Air-to-Air Heat Pumps
From Introduction: "One part of this study, which is presented in this Monograph, consists of an analysis of electric energy usage and electric power demand data obtained from a sample group of occupied houses at Little Rock Air Force Base in Arkansas, equipped with heat pumps, water heaters, cooking ranges, clothes dryers, and miscellaneous appliances all operated by electricity."
Date:
July 13, 1962
Creator:
Achenbach, Paul R.; Davis, Joseph C. & Smith, William T.
Object Type:
Report
System:
The UNT Digital Library
ALKALI METALS EVALUATION PROGRAM--THE DETERMINATION OF THE LATENT HEAT OF VAPORIZATION AND VAPOR PRESSURE OF POTASSIUM FROM 1000 TO 1900 F
None
Date:
April 1, 1965
Creator:
Achener, P.Y.
Object Type:
Report
System:
The UNT Digital Library