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open access

Effects of ionizing radiation on selected optical materials: An overview

Description: This report gives an overview of the effects of ionizing radiation on optical materials that may be used in spacecraft sensors. It introduces the relevant phenomena and indicates were more detailed information can be found. The topics covered include radiation induced absorption in ultraviolet transmitting materials, ordinary optical glasses, cerium stabilized optical glasses, and infrared transmitting materials; bleaching and annealing, and radioluminesence.
Date: July 30, 1992
Creator: Wirtenson, G. R. & White, R. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Adaptive Superplastic Forming Using NIKE2D with ISLAND

Description: Superplastic forming has emerged as an important manufacturing process for producing near-net-shape parts. The design of a superplastic forming process is more difficult than conventional manufacturing operations, and is less amenable to trial and error approaches. This paper describes a superplastic forming process design capability incorporating nonlinear finite element analysis. The material constraints to allow superplastic behavior are integrated into an external constraint equation which … more
Date: July 30, 1992
Creator: Engelmann, Bruce E.; Whirley, Robert G. & Raboin, Peter J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Large spatial, temporal, and algorithmic adaptivity for implicit nonlinear finite element analysis

Description: The development of effective solution strategies to solve the global nonlinear equations which arise in implicit finite element analysis has been the subject of much research in recent years. Robust algorithms are needed to handle the complex nonlinearities that arise in many implicit finite element applications such as metalforming process simulation. The authors experience indicates that robustness can best be achieved through adaptive solution strategies. In the course of their research, thi… more
Date: July 30, 1992
Creator: Engelmann, B. E. & Whirley, R. G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Preliminary minimum detectable limit measurements in 208-L drums for selected actinide isotopes in mock-waste matrices

Description: Preliminary minimum detectable levels (MDLS) of selected actinide isotopes have been determined in full-scale, 55-gallon drums filled with a range of mock-waste materials from combustibles (0.14 g/CM{sup 3}) to sand (1.7 g/CM{sup 3}). Measurements were recorded from 100 to 10,000 seconds with selected actinide sources located in these drums at an edge position, on the center axis of a drum and midway between these two positions. Measurements were also made with a {sup 166}Ho source to evaluate … more
Date: July 30, 1992
Creator: Camp, D. C.; Wang, Tzu-Fang & Martz, H. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Spectroscopic studies of the 110{degree}C thermal aging of PETN

Description: The 110{degrees}C thermal aging parameters, including initial rates of decomposition, of four types of pentaerythritol tetranitrate (PETN) over a period of ten months are presented. Both decomposition products nitric oxide, NO, and nitrogen dioxide, N0{sub 2} were monitored from multiple, hermetically-sealed, in vacuo samples. Nitric oxide appears to be the first nitrogen oxide product evolved. Nitrogen dioxide produced by abrupt thermal aging is more slowly converted to nitric oxide by a 1:1 p… more
Date: July 30, 1992
Creator: Dosser, L. R. & Seliskar, C. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: Sex Therapy]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: July 30, 1992, 10:00 p.m.
Duration: 2 minutes 15 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: F16-Bush]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: July 30, 1992, 10:00 p.m.
Duration: 2 minutes 08 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: SCC-Sidebar]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: July 30, 1992, 5:00 p.m.
Duration: 1 minute 51 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Bentsen]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: July 30, 1992, 5:00 p.m.
Duration: 36 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: GD]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: July 30, 1992, 8:00 p.m.
Duration: 1 minute 02 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
open access

[RE: Proposal for a Super Session at 1992 NAEA Convention & Miscellaneous Information]

Description: A memo from Vicki Rosenberg, program officer at the Getty Center for Education in the Arts, to the Regional Institutes Directors, Sheila Brown, Maggie DiBlasio, Edith Curtice Johnson, Anne Lindsey, Nancy MacGregor, William McCarter, Brent Wilson, Jack Davis, Ginny Gembica, Phyllis Johnson, Jessie Lovano-Kerr, Tom McMullen, Nancy Roucher, and Joyce Wright. The memo is in regards to a presentation on the regional institutes and Delores McMulley submitting a proposal to NAEA for a Super Session ti… more
Date: July 30, 1992
Creator: Rosenberg, Vicki
Item Type: Refine your search to only Letter
Partner: UNT Libraries Special Collections
open access

Design of a high activity and selectivity alcohol catalyst

Description: In methanol dehydration by K-doped Rh-Mo/[gamma]-Al[sub 2]O[sub 3], while higher K levels reduced the dehydration propensity of the surface, at higher levels the potassium oxide layer formed after doping and calcining the surface interferes detrimentally with the Rh-Mo active metallic sites. Silica- and alumina-supported catalysts with 0.5% Rh loading were synthesized and tested for hydrogenation of CO.
Date: July 30, 1992
Creator: Foley, Henry C. & Mills, G. Alex
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Design of a high activity and selectivity alcohol catalyst. Eighth quarterly report, May 7, 1992--August 7, 1992

Description: In methanol dehydration by K-doped Rh-Mo/{gamma}-Al{sub 2}O{sub 3}, while higher K levels reduced the dehydration propensity of the surface, at higher levels the potassium oxide layer formed after doping and calcining the surface interferes detrimentally with the Rh-Mo active metallic sites. Silica- and alumina-supported catalysts with 0.5% Rh loading were synthesized and tested for hydrogenation of CO.
Date: July 30, 1992
Creator: Foley, H. C. & Mills, G. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Commercial Relations with Russia: Prospects for a Common United States-Japanese Policy

Description: Discussions in Japan in May 1992 related to potential agreements at the September 1992 Russian-Japanese summit were keyed to the central question, Will the barriers to significant commercial cooperation involving Russia, Japan and the United States in Russian Siberia be removed? [1] From these discussions among key Japanese industrialists, bankers, government officials and academics who influence policy, came a tentative "yes", if four conditions are met. A positive outcome would thus seem more… more
Date: July 30, 1992
Creator: Hardt, John P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: Russian Bankers]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: July 30, 1992, 5:00 p.m.
Duration: 1 minute 43 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Perot Group]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: July 30, 1992, 5:00 p.m.
Duration: 31 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Perot Campaign]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: July 30, 1992, 6:00 p.m.
Duration: 1 minute 44 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Psychic Edwards]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: July 30, 1992, 10:00 p.m.
Duration: 1 minute 50 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Bush SSC]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: July 30, 1992, 5:00 p.m.
Duration: 1 minute 55 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Bush SSC]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: July 30, 1992, 6:00 p.m.
Duration: 1 minute 55 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Workers]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: July 30, 1992, 5:00 p.m.
Duration: 41 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Democrats]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: July 30, 1992, 6:00 p.m.
Duration: 1 minute 35 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Abortion]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: July 30, 1992, 6:00 p.m.
Duration: 35 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Addison Murder]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: July 30, 1992, 10:00 p.m.
Duration: 40 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
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