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10
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7
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7
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256
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225
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176
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105
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84
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16
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16
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14
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Combination free-electron and gaseous laser
A multiple laser having one or more gaseous laser stages and one or more free electron stages is described. Each of the free electron laser stages is sequentially pumped by a microwave linear accelerator. Subsequently, the electron beam is directed through a gaseous laser, in the preferred embodiment, and in an alternative embodiment, through a microwave accelerator to lower the energy level of the electron beam to pump one or more gaseous lasers. The combination laser provides high pulse repetition frequencies, on the order of 1 kHz or greater, high power capability, high efficiency, and tunability in the synchronous production of multiple beams of coherent optical radiation.
Date:
June 8, 1981
Creator:
Brau, C. A.; Rockwood, S. D. & Stein, W. E.
Object Type:
Patent
System:
The UNT Digital Library
Fast transient digitizer
Method and apparatus are presented for sequentially scanning a plurality of target elements with an electron scanning beam modulated in accordance with variations in a high-frequency analog signal to provide discrete analog signal samples representative of successive portions of the analog signal; coupling the discrete analog signal samples from each of the target elements to a different one of a plurality of high speed storage devices; converting the discrete analog signal samples to equivalent digital signals; and storing the digital signals in a digital memory unit for subsequent measurement or display.
Date:
July 8, 1981
Creator:
Villa, F.
Object Type:
Patent
System:
The UNT Digital Library
[Photograph 2012.201.B0052.0722]
Photograph taken for a newspaper owned by the Oklahoma Publishing Company. Caption: "Nasty Spill Amcare paramedic Mark Hunt questions David Bohnett about possible injuries after Bohnett was hit by frozen hamburger patties that flew from the rear of a truck that overturned Tuesday in a three-car collision at SE 44 and Sooner Road in Oklahoma City. Bohnett, of Oklahoma City, was treated for minor injuries and released. Truck driver William Judson Corn, 77, was hospitalized with undetermined injuries."
Date:
September 8, 1981
Creator:
Buehner, Jeff
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0117.0277]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Buddy Burns and wife Tammie."
Date:
December 8, 1981
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0146.0145]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Wayne Covington, Oklahoma City Clinic."
Date:
March 8, 1981
Creator:
Tullous, Don
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0137.0052]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Cleveland County Courthouse"
Date:
February 8, 1981
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0161.0196]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Robert DeWitt, who is in charge of the greenhouses, said most of the visitors are from out of state or organized groups such as nursery school classes and girl scout troops."
Date:
April 8, 1981
Creator:
Southerland, Paul B.
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0174.0278]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Senior citizens board their own van after a day of activities at the local senior center."
Date:
January 8, 1981
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0170.0185]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "John Durie, second from left, is greeted by his parents, Mr. and Mrs. Charles Durie, right, of the Village, and Mark Wright of Bartlesville on his return to Oklahoma City this week from the International DeMolay Congress in Cherry Hill, N. J."
Date:
April 8, 1981
Creator:
Southerland, Paul B.
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0166.0103]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Rudy Doss is fighting the chamber of commerce in the attempt to open a car dealership."
Date:
September 8, 1981
Creator:
Albright, Bob
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0149.0077]
Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date:
January 8, 1981
Creator:
Klock, Roger
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0139.0262]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Joyce Cole signs for the audience at Del City High School."
Date:
November 8, 1981
Creator:
Longstreath, David
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0139.0263]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Joyce Cole delights the audience with sign language and a universally understood smile."
Date:
November 8, 1981
Creator:
Longstreath, David
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0142.0251]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "A car belonging to Doris Cook of Yukon is pulled from Lake Overholser after a two-hour search by divers."
Date:
April 8, 1981
Creator:
Klock, Roger
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0314B.0263]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Frank Jones"
Date:
July 8, 1981
Creator:
Wilson, George R.
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Electromagnetic velocity gauge: use of multiple gauges, time response, and flow perturbations
We have developed an in-situ electromagnetic velocity (EMV) gauge system for use in multiple-gauge studies of initiating and detonating explosives. We have also investigated the risetime of the gauge and the manner in which it perturbs a reactive flow. We report on the special precautions that are necessary in multiple gauge experiments to reduce lead spreading, simplify target fabrication problems and minimize cross talk through the conducting explosive. Agreement between measured stress records and calculations from multiple velocity gauge data give us confidence that our velocity gauges are recording properly. We have used laser velocity interferometry to measure the gauge risetime in polymethyl methacrylate (PMMA). To resolve the difference in the two methods, we have examined hydrodynamic and material rate effects. In addition, we considered the effects of shock tilt, electronic response and magntic diffusion on the gauge's response time.
Date:
April 8, 1981
Creator:
Erickson, L. M.; Johnson, C. B.; Parker, N. L.; Vantine, H. C.; Weingart, R. C. & Lee, R. S.
Object Type:
Article
System:
The UNT Digital Library
[Photograph 2012.201.B0316B.0192]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Alberta, played by Regina Johnson, threatens to nail down a threadbare sofa after her mother, Weedy, played by Cordelia Edmondson, admonishes her not to get rid of it while she is away at a church convocation."
Date:
December 8, 1981
Creator:
Southerland, Paul
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0249.0109]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Harrah residents and other eastern Oklahoma County citizens tour the new City Hall building at 20 N Harrah Road."
Date:
January 8, 1981
Creator:
Beuhner, Jeff
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0354.0761]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "John lee, financial planning expert from Dallas is scheduled to speak to Oklahoma City Personnel Association at 6 p.m. Thursday, March 25, at Holiday Inn West."
Date:
September 8, 1981
Creator:
Miller, Joe
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0313B.0132]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Mathew Jemett, 2, fulfills a fleeting fascination with fur, taking time out to pet a fox fur peit at the Martin Nature Park exhibit during "Kid's Day" Saturday at Quail Springs Mall."
Date:
August 8, 1981
Creator:
Lynn, Renee
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0257.0456]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Robert Herriott"
Date:
September 8, 1981
Creator:
Lynn, Renee
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0354.0012]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Richard Lemin"
Date:
December 8, 1981
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0261B.0157]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Betty Hollingshead talks with a pregnant teen-ager at Deaconess Home, a home for unwed mothers."
Date:
December 8, 1981
Creator:
Lynn, Renee
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0249.0108]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "The hands reaching out to snip the ribbon on Harrah's new City Hall belong to Gov. George Nigh, who met with city officials and residents to dedicate the building Thursday."
Date:
January 8, 1981
Creator:
Beuhner, Jeff
Object Type:
Photograph
System:
The Gateway to Oklahoma History