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171
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604 Matching Results
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Investigation of the cryogenic mechanical properties of low thermal-expansion superalloys
Four Fe-based superalloys, JBK-75, Incoloy 903, Incoloy 905, and Incoloy 909 were evaluated as tube materials for ICCS Nb/sub 3/Sn superconductors. Evaluation consisted of 4-K tensile and elastic-plastic fracture-toughness testing, and a microstructural characterization of unwelded and autogenously gas-tungsten-arc welded sheet given a simulated postweld processing treatment of 15% cold reduction by rolling followed by a Nb/sub 3/Sn-reaction heat treatment of 96 hours at 700/sup 0/C plus 48 hours at 730/sup 0/C. Results indicate that JBK-75 and Incoloy 903 showed satisfactory combinations of strength and toughness for ICCS tube use requiring long Nb/sub 3/Sn-reaction heat treatments. Incoloy 905 welds and 909 showed unacceptable fracture toughness. Results are discussed in terms of microstructural changes caused by the extended Nb/sub 3/Sn-reaction heat treatment.
Date:
July 30, 1985
Creator:
Summers, L.T. & Dalder, E.N.C.
Object Type:
Article
System:
The UNT Digital Library
SOLERAS - Solar Controlled Environment Agriculture Project. Final report, Volume 1. Project summary
A summary of the Solar Controlled Environment Agriculture Project is presented. The design of the greenhouses include transparent double pane glass roof with channels for fluid between the panes, inner pane tinted and double pane extruded acrylic aluminized mylar shade and diffuser. Solar energy technologies provide power for water desalination, for pumping irrigation water, and for cooling and heating the controlled environment space so that crops can grow in arid lands. The project is a joint effort between the United States and Saudi Arabia. (BCS)
Date:
December 30, 1985
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Production and survival of /sup 99/Tc in He-shell recurrent thermal pulses
After a brief introduction to the present state of art of nuclear beta-decay studies in astrophysics, we report our recent work on the long-standing /sup 99/Tc problem. Having combined a detailed study of the recurrent He-shell thermal-pulse, third dredge-up episodes in a 2.25 M/sub solar/ star and an s-process network calculation, we show that a substantial amount of /sup 99/Tc can be produced by the s-process and can survive to be dredged up to the stellar surface. We stress that the factual observation of /sup 99/Tc at the surface of certain stars does not necessarily preclude the /sup 22/Ne(..cap alpha..,n)/sup 25/Mg reaction from remaining as the neutron source for the s-process. The calculated surface abundances of /sup 99/Tc and elements with neighboring atomic numbers are compared with observations. 43 refs., 5 figs.
Date:
May 30, 1985
Creator:
Takahashi, K.; Mathews, G. J.; Ward, R. A. & Becker, S. A.
Object Type:
Article
System:
The UNT Digital Library
[Photograph 2012.201.B0171.0031]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Cameron Eagle puts the finishing touches on an illustration."
Date:
October 30, 1985
Creator:
Miller, Joe
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0174.0151]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Brian Moore, Edmond High School senior, orders graduation announcements from Margaret Simms-Balfour in anticipation of graduation next spring."
Date:
October 30, 1985
Creator:
Klock, Roger
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0155.0016]
Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date:
August 30, 1985
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0145.0029]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Jerry Couch / City / Near Drowning Victim."
Date:
April 30, 1985
Creator:
Gooch, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0141.0050]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Mask from around the world cover one wall of Maybelle Conger's home, most of them given to her by adoring students."
Date:
April 30, 1985
Creator:
Howell, Paul S.
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0138.0590]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "At the buffet are Janyce and Henry Coffeen."
Date:
September 30, 1985
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0146.0647]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Mike Burkhart / Tadpole Cattle Co."
Date:
April 30, 1985
Creator:
Hayden, Don
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0138.0186]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Mayor Andy Coats, center, shows an Oklahoma City map to politically active young foreign visitors, from left, Juan Gabriel Uribe Vegalara, Jean-Florent Rerolle Pete Woolcott, Reinhold Lopatka, Nicholas Pete Offord and Serge Bluds."
Date:
July 30, 1985
Creator:
Klock, Roger
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0335.0193]
Photograph used for a story in the Daily Oklahoman newspaper.
Date:
January 30, 1985
Creator:
Albright, Bob
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0352.0223]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Talking together are, from left, Cindy Hazelwood and Tom and Judy Knott."
Date:
August 30, 1985
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0348.0137]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Mike Krywucki talks with Kelly Riha and Jack O'Meara, from left."
Date:
August 30, 1985
Creator:
Hellstern, Paul
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0348.0133]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Having a good time are, from left, Karleen Krywucki, Dana Hieronymus, Jane Cathey and Kenneth Cathey."
Date:
August 30, 1985
Creator:
Hellstern, Paul
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0349.0533]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Fountainhead State Resort, Lake Eufaula"
Date:
March 30, 1985
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0228.0637]
Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date:
September 30, 1985
Creator:
Klock, Roger
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0245.0953]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Two-year-old Rebecca Campbell, left photo, is skeptical about the fake tarantula in Mary Meier's hand."
Date:
October 30, 1985
Creator:
Southerland, Paul
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0257.0402]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Luis Hererra de la Fuente and his wife, left, are greeted by host John Boland."
Date:
September 30, 1985
Creator:
Howell, Paul S.
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0226.0398]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Saundra Gragg, Michelle DeLong and Renee Preftakes, from left, were at the party."
Date:
August 30, 1985
Creator:
Hellstern, Paul
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0223.0290]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Evelyn Williamson"
Date:
June 30, 1985
Creator:
Blevins, Don
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0262.0291]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Regina Smith Hirsch & Dr. Jeffrey Hirsch, City"
Date:
May 30, 1985
Creator:
Gooch, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0229.0519]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Portraying the battle over liquor -by-the-drink in Oklahoma are area journalists, from left, Carter Bradley...."
Date:
January 30, 1985
Creator:
McDaniel, David
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0262.0338]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Christa Hise hooks a sheep up for its walk."
Date:
August 30, 1985
Creator:
Heckard, Carole
Object Type:
Photograph
System:
The Gateway to Oklahoma History