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52
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30
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29
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23
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14
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7
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5
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128 Matching Results
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Nonlinear ion-cyclotron waves in mirror machines. Paper IAEA-CN-38/S-1
Experimental results on ion-cyclotron waves observed in the 2XIIB mirror machine are reviewed, and relevant theoretical work is discussed. The work reported generally substantiates the quasilinear diffusion model of mirror-plasma confinement, but also suggests alternatives. The end-loss current required by theory of the drift-cyclotron loss-cone (DCLC) instability agrees with measurements of this current. The experiment indicates that an increased ratio of plasma radius to ion gyroradius improves plasma confinement. However, measurements sometimes show a second ion-cyclotron mode, which is not the DCLC mode. Theoretical work on loss-cone instabilities has concentrated on linear, quasilinear, and fully nonlinear models of increased sophistication and experimental applicability.
Date:
May 22, 1980
Creator:
Cohen, B. I.; Smith, G. R. & Berk, H. L.
Object Type:
Article
System:
The UNT Digital Library
Plasma confinement experiments in the TMX tandem mirror. Paper IAEA-CN-38/F-1
Results from the new Tandem Mirror Experiment (TMX) are described. Tandem-mirror density and potential profiles are produced using end-plug neutral-beam injection and central-cell gas-fueling. TMX parameters are near those predicted theoretically. The end-plug electron temperature is higher than in the comparably sized single-mirror 2XIIB. Axial confinement of the finite-beta central-cell plasma is improved by the end plugs by as much as a factor of 9. In TMX, end-plug microinstability limits central-cell confinement in agreement with theory.
Date:
May 22, 1980
Creator:
Simonen, T. C.; Anderson, C. A. & Casper, T. A.
Object Type:
Article
System:
The UNT Digital Library
Review of geochemical measurement techniques for a nuclear waste repository in bedded salt
A broad, general review is presented of geochemical measurement techniques that can provide data necessary for site selection and repository effectiveness assessment for a radioactive waste repository in bedded salt. The available measurement techniques are organized according to the parameter measured. The list of geochemical parameters include all those measurable geochemical properties of a sample whole values determine the geochemical characteristics or behavior of the system. For each technique, remarks are made pertaining to the operating principles of the measurement instrument and the purpose for which the technique is used. Attention is drawn to areas where further research and development are needed.
Date:
May 22, 1980
Creator:
Knauss, K.G. & Steinborn, T.L.
Object Type:
Report
System:
The UNT Digital Library
Theory of field-reversed mirrors and field-reversed plasma-gun experiments. Paper IAEA-CN-38/R-2
Experimental and theoretical studies of field reversal in a mirror machine are reported. Plasma-gun experiments demonstrate that reversed-field plasma layers are formed. Low energy plasma flowing behind the initially produced plasma front prevents tearing of the layer from the gun muzzle. MHD simulation shows that tearing can be obtained by impeding the slow plasma flow with a plasma divider. It is demonstrated theoretically that a field-reversed mirror imbedded in a multipole field can be sustained in steady state with neutral-beam injection even in the absence of impurities. MHD stability analysis shows that growth rates of elongated reversed-field theta-pinch configurations decrease with axial extension, which indicates the importance of including finite Larmor radius in the analysis. Tilting-mode criteria are dramatically improved by proper shaping, and a problimak shape is proposed. Tearing mode stability of reversed-field theta-pinches is greatly enhanced by flux exclusion. Self-consistent, 1-1/2-dimensional transport codes have been developed, and initial results are presented.
Date:
May 22, 1980
Creator:
Anderson, D.V.; Auerbach, S.P. & Berk, H.L.
Object Type:
Article
System:
The UNT Digital Library
[Photograph 2012.201.B0352.0185]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Steven George Knopp, Warr Acres police officer who was wounded Feb 16 of this year holds a plaque that was presented to him by the Warr Acres Fraternal Order of Police Lodge 145."
Date:
May 22, 1980
Creator:
Grier, Bob
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0553.0267]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Jean Hochhaus (1980 Dem. Convention delegate)"
Date:
May 22, 1980
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0245.0571]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Leota Hall of Muskogee and her 6-year-old granddaughter Angela Armstrong visit the grave of Mrs. Hall's husband, a veteran"
Date:
May 22, 1980
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0151.0268]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Oklahoma City Zoo Director Larry Curtis, left with microphone, and animal technician Karen Anderson look on as 'Spike,' a female turtle bites her way through a ribbon Thursday to open the zoo's new Galapagos Islands exhibit."
Date:
May 22, 1980
Creator:
Grier, Bob
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0261C.0077]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Jeff Holberg, 23, gets his whole wrist into a throw as tees off on the Frisbee golf course at Lions Northeast Park in Norman."
Date:
May 22, 1980
Creator:
James, Todd
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0261C.0078]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Jeff Holberg uses a flick of the wrist for a chip shot on the Frisbee golf course in Norman."
Date:
May 22, 1980
Creator:
James, Todd
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0051.0977]
Photograph taken for a newspaper owned by the Oklahoma Publishing Company. Caption: "Officer Bob Pratt, center, holds a scratched helmet worn by Daniel Rounds, 18, when he collided Wednesday with a car driven by Norine Pavatt on the Broadway Extension north of Memorial Road"
Date:
May 22, 1980
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0101.0471]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Minutes could save a life in the profession of Tim Boyett and Steve Heath."
Date:
May 22, 1980
Creator:
Albright, Bob
Object Type:
Photograph
System:
The Gateway to Oklahoma History
The Tulia Herald (Tulia, Tex.), Vol. 72, No. 21, Ed. 1 Thursday, May 22, 1980
Weekly newspaper from Tulia, Texas that includes local, state and national news along with extensive advertising.
Date:
May 22, 1980
Creator:
Tooley, Wendell
Object Type:
Newspaper
System:
The Portal to Texas History
[News Clip: Rowlett]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
May 22, 1980, 10:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Gas / miles]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
May 22, 1980, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Rescue]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
May 22, 1980, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Littlest Angels]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
May 22, 1980, 5:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: DHA Discrimination]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
May 22, 1980, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: DISD Budget]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
May 22, 1980, 5:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Pyramid Victims]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
May 22, 1980, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Pyramid Plan]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
May 22, 1980, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: DISD Budget]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
May 22, 1980, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Building]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
May 22, 1980, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: DHA Discrimination]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
May 22, 1980, 10:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library