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1 - 24 of
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Recovery and reuse of asphalt roofing waste. Final report
Burning of asphalt roofing waste as a fuel and incorporating asphalt roofing waste in bituminous paving were identified as the two outstanding resource recovery concepts out of ten studied. Four additional concepts might be worth considering under different market or technical circumstances. Another four concepts were rated as worth no further consideration at this time. This study of the recovery of the resource represented in asphalt roofing waste has identified the sources and quantities of roofing waste. About six million cubic yards of scrap roofing are generated annually in the United States, about 94% from removal of old roofing at the job site and the remainder from roofing material production at factories. Waste disposal is a growing problem for manufacturers and contractors. Nearly all roofing waste is hauled to landfills at a considerable expense to roofing contractors and manufacturers. Recovery of the roofing waste resource should require only a modest economic incentive. The asphalt contained in roofing waste represents an energy resource of more than 7 x 10/sup 13/ Btu/year. Another 1 x 10/sup 13/ Btu/year may be contained in field-applied asphalt on commercial building roofs. The two concepts recommended by this study appear to offer the broadest applicability, the …
Date:
February 2, 1984
Creator:
Desai, S.; Graziano, G. & Shepherd, P.
Object Type:
Report
System:
The UNT Digital Library
Milliwatt generator heat source. Progress report, July-December 1983
All LANL hardware requirements were met during the reporting period as scheduled. Lot 12 of T-111 alloy sheet and Lot 8 of yttrium platelets were procured to meet future WR production needs. The GEND IP schedule requirements for 49 fueled MC2893 heat sources were met. Pressure burst surveillance activities continued to be conducted in accordance with SNLA document BB328965. Final results of evaluations of two pressure-burst capsules were normal, suggesting that the corresponding heat sources should be in good condition. The hardware production period ended with an overall hardware process yield of 98.4%.
Date:
March 2, 1984
Creator:
Mershad, E.A.
Object Type:
Report
System:
The UNT Digital Library
Recent results of studies of acceleration of compact toroids
The observed gross stability and self-contained structure of compact toroids (CT's) give rise to the possibility, unique among magnetically confined plasmas, of translating CT's from their point of origin over distances many times their own length. This feature has led us to consider magnetic acceleration of CT's to directed kinetic energies much greater than their stored magnetic and thermal energies. A CT accelerator falls in the very broad gap between traditional particle accelerators at one extreme, which are limited in the number of particles per bunch by electrostatic repulsive forces, and mass accelerators such as rail guns at the other extreme, which accelerate many particles but are forced by the stress limitations of solids to far smaller accelerations. A typical CT has about a Coulomb of particles, weighs 10 micrograms and can be accelerated by magnetic forces of several tons, leading to an acceleration on the order of 10/sup 11/ gravities.
Date:
March 2, 1984
Creator:
Hammer, J. H.; Hartman, C. W. & Eddleman, J.
Object Type:
Article
System:
The UNT Digital Library
Incorporation of a circular boundary condition into the program POISSON
Two-dimensional problems in electrostatics or magnetostatics frequently are solved numerically by means of relaxation techniques. In many such problems the ''sources'' (charges or currents, and regions of permeable material) lie exclusively within a finite closed boundary curve and the relaxation process in principle then could be confined to the region interior to such a boundary - provided a suitable boundary condition is imposed onto the solution at that boundary. The present notes discuss and illustrate the use of a boundary condition of such a nature as to imply the absence of external sources, in order thereby to avoid the inaccuracies and more extensive meshes present when alternatively a simple Dirichlet or Neumann boundary condition is specified on a somewhat more remote outer boundary.
Date:
March 2, 1984
Creator:
Caspi, S.; Helm, M. & Laslett, L.J.
Object Type:
Report
System:
The UNT Digital Library
HOTSPUR progress report: neutron source spectrum characterization, and /sup 6/Li(n,x. cap alpha. ) and /sup 7/Li(n,x. cap alpha. ) cross section determination
As a prerequisite to high accuracy measurements involving the bulk configuration of /sup 6/LiD we must have a good grasp of the details of the RTNS-I neutron source energy spectrum. Experiments to this end involving neutron yield vs deuteron energy, ratios of foil activation of selected elements, and pulse height distributions of a Si surface barrier detector are described. With this knowledge, the /sup 4/He-production cross sections for /sup 6/Li and /sup 7/Li are found experimentally to be 0.512b and 0.336b, respectively, at anti E/sub N/ = 15.0 MeV in free-field geometry. 14 references.
Date:
April 2, 1984
Creator:
Goldberg, E. & Haight, R.
Object Type:
Report
System:
The UNT Digital Library
[Photograph 2012.201.B0074.0874]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "John Marshall's Patrick German goes up against Darren Caldwell of Douglass during a freshman boys game Thursday at Marshall."
Date:
February 2, 1984
Creator:
Southerland, Paul
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0142.0455]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "A former fisheries biologist, Ken Cook is uniquely qualified to conduct bass fishing seminars."
Date:
February 2, 1984
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0137.0622]
Caption: "Storm clouds boil near Roff in Pontotoc County about 6 p. m/. Wednesday, before unleashing baseball-sized hail and an apparent tornado."
Date:
May 2, 1984
Creator:
Southerland, Paul
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0142.0451]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Seminars are part of Ken Cook's new career as full-time fisherman."
Date:
February 2, 1984
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0142.0169]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Mary Lynne Conzelman takes her chances at the game table."
Date:
March 2, 1984
Creator:
McDaniel, David
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0148.0476]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Police and fire department officials gather near the entrance of a drainage canal tunnel near SW 44 and Brookline where the body of a teen-age girl was found Friday."
Date:
March 2, 1984
Creator:
Southerland, Paul
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0146.0699]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Warden Jack Cowley, who says his prison at Taft may be one of the 'toughest' in the state, takes time to chat, above, with two inmates near the institution's fence."
Date:
October 2, 1984
Creator:
Southerland, Paul
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0312B.0620]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Mary Jane Ridgeway, Rosalie Caperton, Don Tucker and Cathy Rodriguez step out."
Date:
March 2, 1984
Creator:
McDaniel, David
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0335.0237]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Looking over a painting are, form left, John Kirkpatrick, Linda Nelson, Chuck Nelson and Eleanor Kirkpatrick."
Date:
October 2, 1984
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0348.0590]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Chris Gourdie of the Oklahoma State University Lacrosse team has his eye on the ball as Baylor opponent Sam Flippo prepares to "check Stick" to prevent a successful reception today during a game in Stillwater."
Date:
April 2, 1984
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0306B.0759]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "CSU's Ronnie James (left) had his sights on four straight national titles, but he lost 3-2 to unseeded Tim Molitor of Southwest Minnesota State in a 142-pound match on Friday."
Date:
March 2, 1984
Creator:
Southerland, Paul
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Chemistry of glass-ceramic to metal bonding for header applications. I. Effect of treatments on Inconel 718 and Hastelloy C-276 metallic surfaces
Auger electron spectroscopy and depth Auger profiling were used to study the surfaces of Inconel 718 and Hastelloy C-276. The metal surfaces were processed in the same manner as is presently being used in the manufacturing of glass-ceramic headers. At each step in the process, samples were studied with Auger spectroscopy to determine their resultant elemental surface composition and film thickness. In addition, the effect of a final plasma cleaning operation on the metal surface was examined. The results show that the type and concentration of surface species and the thickness of the surface oxides are dependent on the processing technique.
Date:
February 2, 1984
Creator:
Kramer, D P; Craven, S M; Schneider, R E; Moddeman, W E & Brohard, D W
Object Type:
Report
System:
The UNT Digital Library
[Photograph 2012.201.B0354.0093]
Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date:
April 2, 1984
Creator:
Klock, Roger
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0350.0548]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "This hone at 419 NW 14 started out as a two-story frame structure."
Date:
October 2, 1984
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0354.0091]
Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date:
April 2, 1984
Creator:
Klock, Roger
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0348.0694]
Photograph used for a story in the Daily Oklahoman newspaper.
Date:
March 2, 1984
Creator:
Gooch, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0251.0485]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Guests include Phoebe Trent, left, Tiffany Harrison and Jeaneen Naifeh."
Date:
June 2, 1984
Creator:
Howell, Paul S.
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0248.0394]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Bob Hardcastle"
Date:
March 2, 1984
Creator:
Klock, Roger
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0246.0040]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Hale, left, with co-hosts Barbara and John Philbin."
Date:
June 2, 1984
Creator:
Southerland, Paul
Object Type:
Photograph
System:
The Gateway to Oklahoma History