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345 Matching Results
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Arsenic Removal From Gaseous Streams
Uranium feed materials, depending on the production process, have been found to contain arsenic (As) as a contaminant. Analyses show the As to be present as As pentafluoride (AsF{sub 5}) and/or hexafluoroarsenic acid (HAsF{sub 6}) and enter the enrichment cycle through contaminated hydrogen fluoride (HF). Problems related to corrosion of cylinder valves and plugging of feed lines and valves have been attributed to the As. Techniques to separate AsF{sub 5} from uranium hexafluoride (UF{sub 6}) using sodium fluoride (NaF) as a trapping media were successful and will be discussed. Procedures to significantly reduce (up to 97%) the level of As in HF will also be reported. 5 figs., 9 tabs.
Date:
November 22, 1989
Creator:
Russell, R. G. & Otey, M. G.
Object Type:
Report
System:
The UNT Digital Library
Improved methods for computing masses from numerical simulations
An important advance in the computation of hadron and glueball masses has been the introduction of non-local operators. This talk summarizes the critical signal-to-noise ratio of glueball correlation functions in the continuum limit, and discusses the case of (q{bar q} and qqq) hadrons in the chiral limit. A new strategy for extracting the masses of excited states is outlined and tested. The lessons learned here suggest that gauge-fixed momentum-space operators might be a suitable choice of interpolating operators. 15 refs., 2 tabs.
Date:
November 22, 1989
Creator:
Kronfeld, A.S.
Object Type:
Article
System:
The UNT Digital Library
Microscopic approach to the generator coordinate method
In this paper, we solve different theoretical problems associated with the calculation of the kernel occurring in the Hill-Wheeler integral equations within the framework of generator coordinate method. In particular, we extend the Wick's theorem to nonorthogonal Bogoliubov states. Expressions for the overlap between Bogoliubov states and for the generalized density matrix are also derived. These expressions are valid even when using an incomplete basis, as in the case of actual calculations. Finally, the Hill-Wheeler formalism is developed for a finite range interaction and the Skyrme force, and evaluated for the latter. 20 refs., 1 fig., 4 tabs.
Date:
August 22, 1989
Creator:
Haider, Q.; Gogny, D. & Weiss, M.S.
Object Type:
Report
System:
The UNT Digital Library
Current (1990) Operating Budget for North Texas Institute for Educators on the Visual Arts
Photocopy of an operating budget for NTIEVA for the year 1990. This copy is the revised version, as of December 22, 1989. The budget is divided into five groups, Personnel, Personnel Fringe Benefits, Staff Development Activities, under which are Leadership Retreat costs, Institute Preparatory Sessions costs, and Summer Institute costs, then come the Implementation costs, and Operating costs. Across all these groups there is a further breakdown of where the funds will come from. Either In-Kind, Match, Getty will cover the item, with a total budget tallied at the end.
Date:
December 22, 1989
Creator:
North Texas Institute for Educators on the Visual Arts
Object Type:
Report
System:
The UNT Digital Library
Sid W. Richardson Foundation
A financial data report for the Sid W. Richardson Foundation. The financial report lists the foundations assets from the 1984 year to the 1988 year and the grants awarded for that year.
Date:
June 22, 1989
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
[News Clip: Auto theft]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, covering a news story about an Auto Theft bust, showing the arrest to men accused of selling stolen car parts and their relation to drug dealing. This story aired at 5pm.
Date:
November 22, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Farmers Market]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, of the farmers market during the winter season, showing baskets of fruit available for purchase. This story aired at 5pm.
Date:
December 22, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Salvador fast]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, covering a news story by reporter Shelley Kofler about Salvadorans and others in Dallas choosing to fast as a form of opposition to the U.S. support of government in El Salvador. This story aired at 6pm.
Date:
November 22, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Lipscomb]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, covering a news story about a speech by Dallas council member Al Lipscomb and others about his past criminal history. This story aired at 6pm.
Date:
November 22, 1989, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Blankets]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, covering a news story about blankets being given to the homeless. This story aired at 10pm.
Date:
November 22, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Greetings]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 5pm.
Date:
December 22, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Crack buys]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, covering a news story about crack busts in Dallas and the large amount of arrests that have controversial trial decisions on the jail time. This story aired at 6pm.
Date:
November 22, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Fires]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 5pm.
Date:
December 22, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Farmers Market]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, covering a news story by reporter Jeff Eliasoph about the Farmers Market that has a very small amount of people out buying and selling during the winter cold. This story aired at 6pm.
Date:
December 22, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Dealey Plaza]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, covering the Dealey Plaza and the building with the six floor window related to the JFK assassination. This story aired at 5pm.
Date:
November 22, 1989, 5:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Victims]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. this story aired at 6pm.
Date:
September 22, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Red Cross]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 10pm.
Date:
September 22, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Motorcycle Cop]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 66pm.
Date:
August 22, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Valencia]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
September 22, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Apartment Fire]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 5pm.
Date:
March 22, 1989, 5:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Stolen Car]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 5pm.
Date:
June 22, 1989, 5:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Portrait: Nina Hardy]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 10pm.
Date:
July 22, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Tipit Outdoors]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 5pm.
Date:
June 22, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Texas Imports]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 5pm.
Date:
September 22, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library