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284
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146
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116
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53
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39
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Path of Triple Point for spherical Shocks Above a Rigid Plane
Paths of trip points of Mach reflections produced by 0.5-oz pentolite detonations have been observed for various burst heights. The slopes, Y, at points on the curved path are found to vary from values of Y predicted from plane shock wave data. This discrepancy is attributed to the shock strength conditions at the early inception of the Mach reflection, which later influence the triple point equilibrium, and in lesser degree to radius of curvature effects.
Date:
July 13, 1954
Creator:
Todd, Jay. Jr. & Schellenbaum, Ralph L.
Object Type:
Report
System:
The UNT Digital Library
Test of Heater and Cooler Concepts for OCR-ORR Loop, Design 4
High heat flux electrical cartridge heaters were tested with direct air cooling under simulated ORR Loop conditions. The cartridges and the heater design were found to be satisfactory. A gas cooled of concentric pipe design utilizing air, water, and air-water mixtures as the coolant was also evaluated and found to be satisfactory.
Date:
July 13, 1959
Creator:
Kelley, W. H., Jr. & Storto, E.
Object Type:
Report
System:
The UNT Digital Library
The Use of the Electrical Conductivity of Graphite as a Radiation Damage and Flux Monitor. Implications of the Results to the General Theory of Radiation Damage
A method for monitoring radiation damage irradiations using the change of the electrical conductivity of graphite is described. Results of monitoring operations in a number of locations are given. An attempt is made to explain the damage rate found in the converter at CP-3. An estimate of the flux spectrum in VT-4 and the converter of CP-3 is made and the damage rate is computed according to theories of Seitz and James. It is found that the experimental results are more in accord with the predictions of Seitz. A number of corrections to James' report, ORNL-307, are noted in an appendix. It is shown that some information about the fast flux spectrum can be inferred from the radiation damage rate.
Date:
July 13, 1953
Creator:
Primak, W. L. & Fuchs, L. H.
Object Type:
Report
System:
The UNT Digital Library
Stability for inhomogeneous difference schemes
Abstract. The Equivalence Theorem of P. Lax is extended to difference schemes for initial-value problems for linear inhomogeneous PDE with linear inhomogeneous boundary values and for boundary-value problems.
Date:
July 13, 1960
Creator:
Seidman, Thomas I.
Object Type:
Report
System:
The UNT Digital Library
Advertising Attachment for Scales.
Patent for improvements in advertising attachments for scales to "provide an attachment of the character specified, wherein a series of display members are provided, mounted to be moved into different positions, to bring different matter into different positions, and controlled to movement by the stepping onto the weighing platform of the one to be weighed." (lines 11-18)
Date:
July 13, 1920
Creator:
Funk, Arthur Neal
Object Type:
Patent
System:
The Portal to Texas History
Coal-Oil Generator.
Patent for improvements in oil burners to have the "means to permit the same to be positioned within the fire box of a stove, by means of the especially constructed support." (lines 12-15)
Date:
July 13, 1920
Creator:
Epps, Henry Gaston
Object Type:
Patent
System:
The Portal to Texas History
Knife.
Patent for a knife with multiple curved blades used to cut food.
Date:
July 13, 1920
Creator:
Oertli, Henri
Object Type:
Patent
System:
The Portal to Texas History
Valve-Grinder.
Patent for "a tool adapted to rotate valves of an internal combustion engine for grinding the same on their seats." (lines 9-11) It is adapted to connect to the cylinder "of the engine in such a manner as to permit accurate and quick operation of the valve for grinding it, and whereby the handle of the tool may be set at a convenient angle for manipulation, and may be lengthened or shortened according to requirements." (lines 15-21)
Date:
July 13, 1920
Creator:
Ralston, John
Object Type:
Patent
System:
The Portal to Texas History
Process of Producing Prints on Metal.
Patent for a new way to print negatives directly on sensitized metal by dying the print, removing the dye stains, burnishing the "high lights," polishing the dye print and finally lacquering in order to make permanent. This gives the image a bas-relief effect.
Date:
July 13, 1920
Creator:
Snow, Philo V.
Object Type:
Patent
System:
The Portal to Texas History
Surgical Splint.
Patent for a surgical splint specifically for the substitution of erectile tissue of the corpora cavernous of the genital organ to promote fecundation even in the absence of an erection.
Date:
July 13, 1920
Creator:
Renois, John J.
Object Type:
Patent
System:
The Portal to Texas History
Pneumatic Tire.
Patent for improvements in pneumatic tire that gives a novel means to repairing a worn casing, a blow out, or a rim cut.
Date:
July 13, 1920
Creator:
Church, Shelby L.
Object Type:
Patent
System:
The Portal to Texas History
Screen Pickup-Roller.
Patent for improvements for condensing things such as lint and hair and removing them from "the screen cylinder of the apparatus by a screen pickup roller." (lines 13-15)
Date:
July 13, 1920
Creator:
Martin, George W.
Object Type:
Patent
System:
The Portal to Texas History
Power-Transmitting Mechanism.
Patent for improvements in a power transmitting mechanism that is "designed for the purpose of connecting a driving or power shaft with a driven shaft, whereby the driven shaft is continuously rotated from the driving shaft." (lines 11-14)
Date:
July 13, 1920
Creator:
Smith, Robert W. J.
Object Type:
Patent
System:
The Portal to Texas History
Method and Apparatus for Coating Pipes, Bars, Angles, and the Like.
Patent for improved method of coating pipes, bars, angles, etc., by applying centrifugal force to the item after being immersed in a coating bath.
Date:
July 13, 1920
Creator:
Watrous, Edward L.
Object Type:
Patent
System:
The Portal to Texas History
Sling-Shot.
Patent for a sling shot that is more durable, efficient, and less likely to break. Includes instructions and one illustration.
Date:
July 13, 1920
Creator:
Jones, Ralph L.
Object Type:
Patent
System:
The Portal to Texas History
Calendar
Patent for a calendar that has the ability to preserve pages of interest for future reference.
Date:
July 13, 1920
Creator:
Pennington, Emory G.
Object Type:
Patent
System:
The Portal to Texas History
Hydrogeochemical and Stream Sediment Reconnaissance Basic Data for Manhattan NTMS Quadrangle, Kansas
from Abstract: "Results are reported of a reconnaissance geochemical survey of the Manhattan quadrangle, Kansas. Field and laboratory data are presented for 674 groundwater and 718 stream sediment samples. Statistical and areal distributions of uranium and possible uranium-related variables are displayed. A generalized geologic map of the survey area is provided, and pertinent geologic factors which may be of significance in evaluating the potential for uranium mineralization are briefly discussed."
Date:
July 13, 1979
Creator:
National Uranium Resource Evaluation Program
Object Type:
Report
System:
The UNT Digital Library
Radiation Laboratory, University of Notre Dame. Quarterly report, April 1, 1977--June 30, 1977. [One paragraph summaries of various investigations]
Investigations in progress include: ionization potentials of H/sub 2/O from molecular orbital and valence bond wavefunctions; early events in pulse-irradiated polar liquids; epithermal trapping of electrons; range of photoionized electrons in high-mobility liquids using field-dependent mobility; scattering of exciton by the impurity; model molecular orbital studies of the chemisorption of atomic hydrogen and oxygen on aluminium surfaces; laser induced fluorescence and the geometry of the excited states of tetra-methyl cyclobutanedione; fluorescence studies of hydrogen adduct and raman studies of radical anion; energy transfer studies between electronically excited atoms and ground state molecules; kinetics and chemically induced electron polarization (CIDP) of transient radicals in solution by modulation ESR spectroscopy, CIDP of t-butyl radicals in solutions; ESR spectra of phosphate, sulfate, and hydroxyl radical adducts to unsaturated carboxylic acids; high-field conduction in thin-film alkali halides; electron reactions in the gas phase; interaction of triplet biradicals with ground state molecular oxygen; reactions of Cl/sub 2//sup -/ radicals with organic compounds; oxidation of Ni(II) macrocyclic complexes by OH radicals; photochemical reactions of Cu(II) complexes with macrocyclic ligands; fast reaction kinetics in fatty acid soap aggregates; the dynamics of probe molecules in a micelle environment; the effect of a micellar phase on the state and …
Date:
July 13, 1977
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Susanville Geothermal Energy Project. Workshop proceedings final technical report
Separate abstracts were prepared for the 16 papers presented in ERA; 10 are included in EAPA. (WHK)
Date:
July 13, 1976
Creator:
Longyear, A. B.
Object Type:
Report
System:
The UNT Digital Library
Enhancing low severity coal liquefaction reactivity using mild chemical pretreatment
In this paper, we describe results from a study in which mild chemical pretreatment of coal has been used to enhance low severity liquefaction reactivity. We have found that ambient pretreatment of eight Argonne coals using methanol and a trace amount of hydrochloric acid improves THF-soluble conversions 24.5 wt% (maf basis) for Wyodak subbituminous coal and 28.4 wt% for Beulah-Zap lignite with an average increase of 14.9 wt% for liquefaction of the eight coals at 623 K (350{degree}C) reaction temperature and 30 min. reaction time. Similar enhancement results occurred using, hexane or acetone in place of methanol. Pretreatment with methanol and HCI separately indicated that both reagents were necessary to achieve maximum liquefaction improvement. Acid concentration was the most important pretreatment variable studied; liquefaction reactivity increased with increasing acid concentration up to 2 vol%. No appreciable effect on reactivity was observed at higher acid concentrations. Although vapor phase alcohol/HCI mixtures have been shown to partially alkylate bituminous coals, analysis of Wyodak and Illinois {number sign}6 coal samples indicated that no organic phase alteration occurred during pretreatment; however, over 90 wt% of the calcium was removed from each coal. Calcium is thought to catalyze retrogressive reactions during coal pyrolysis, and thus …
Date:
July 13, 1992
Creator:
Shams, K. G.; Miller, R. L. & Baldwin, R. M.
Object Type:
Report
System:
The UNT Digital Library
Energy flux distributions for direct converters
Expressions are derived for the relative ion flux in the fans of a mirror fusion reactor. Numerical values are presented for typical reactor parameters.
Date:
July 13, 1976
Creator:
Devoto, R. S.
Object Type:
Report
System:
The UNT Digital Library
Savannah River release: test of the new ARAC capability. [Tritium transport in air]
Working jointly from opposite sides of the nation Lawrence Livermore Laboratory (LLL) and the Savannah River Laboratory (SRL) quickly assessed the consequences of an early-morning tritium release in May 1974 from the Savannah River Plant, in South Carolina. Measurements confirmed the accuracy of the LLL predictions. Due to the small quantity involved and to the release location (well within the plant confines), the release was not dangerous to the public. The emergency provided a dramatic test of procedures and capabilities of the new Atmospheric Release Advisory Capability (ARAC) center at Livermore, which was not yet operational, demonstrating the capacity for quick response, and the feasibility of real-time data acquisition and transmittal across the continent.
Date:
July 13, 1977
Creator:
Dickerson, M. H.
Object Type:
Report
System:
The UNT Digital Library
Blanket design for the mirror fusion/fission hybrid reactor
The evolution of this particular blanket concept is described. The geometry of the mirror reactor blanket and the replacement methods that are employed are described. The sub-module design and its thermal-hydraulic considerations, the nuclear model geometry and compositions, and the nuclear calculational method are described. A brief reference is made to calculational vs. experimental results.
Date:
July 13, 1976
Creator:
Lee, J. D.
Object Type:
Article
System:
The UNT Digital Library
Operators guide: Atmospheric Release Advisory Capability (ARAC) site facility
In this report capabilities and services are described for the Atmospheric Release Advisory Capability (ARAC). The ARAC site system and its operating procedures and interactions with the ARAC central facility located at LLL is outlined. ARAC is designed to help officials at designated ERDA sites and other locations in estimating the effects of atmospheric releases of radionuclides or other hazardous materials by issuing real-time advisories to guide them in their planning.
Date:
July 13, 1977
Creator:
Lawver, B. S.
Object Type:
Report
System:
The UNT Digital Library