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[2012.201.B0425B.0006]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Since 1983, Mugg and his wife, Joyce, have spent most of their time traveling through a half-dozen Eastern European countries as part of the Eastern European Seminary, which trains clergy members." Image is of an older man wearing glasses dressed in a button down shirt, tie, and tweed jacket in a relaxed pose on a couch speaking to someone out of the frame.
Date:
January 8, 1990
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
(Aerodynamic focusing of particles and heavy molecules)
By accelerating a gas containing suspended particles or large molecules through a converging nozzle, the suspended species may be focused and therefore used to write fine lines on a surface. Our objective was to study the limits on how narrow this focal region could be as a function of particle size. We find that, for monodisperse particles with masses m{sub p} some 3.6 {times} 10{sup 5} times larger than the molecular mass m of the carrier gas (diameters above some 100{angstrom}), there is no fundamental obstacle to directly write submicron features. However, this conclusion has been verified experimentally only with particles larger than 0.1 {mu}m. Experimental, theoretical and numerical studies on the defocusing role of Brownian motion for very small particles or heavy molecules have shown that high resolution (purely aerodynamic) focusing is impossible with volatile molecules whose masses are typically smaller than 1000 Dalton. For these, the minimal focal diameter after optimization appears to be 5{radical}(m/m{sub p}) times the nozzle diameter d{sub n}. But combinations of focused lasers and aerodynamic focusing appear as promising for direct writing with molecular precursors. Theoretical and numerical schemes capable of predicting the evolution of the focusing beam, including Brownian motion effects, have been …
Date:
January 8, 1990
Creator:
de la Mora, J.F.
Object Type:
Report
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 68, No. 7, Ed. 1 Monday, January 8, 1990
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 8, 1990
Creator:
Lomenick, Rick
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Bastrop Advertiser (Bastrop, Tex.), Vol. 136, No. 88, Ed. 1 Monday, January 8, 1990
Semi-weekly newspaper from Bastrop, Texas that includes local, state, and national news along with extensive advertising.
Date:
January 8, 1990
Creator:
McAuley, Davis
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 68, No. 59, Ed. 1 Monday, January 8, 1990
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
January 8, 1990
Creator:
Brown, Leon
Object Type:
Newspaper
System:
The Portal to Texas History
Burleson Star (Burleson, Tex.), Vol. 25, No. 37, Ed. 1 Monday, January 8, 1990
Tri-weekly newspaper from Burleson, Texas that includes local, state, and national news along with advertising.
Date:
January 8, 1990
Creator:
Moody, James
Object Type:
Newspaper
System:
The Portal to Texas History
Chickasha Daily Express (Chickasha, Okla.), Vol. 98, No. 256, Ed. 1 Monday, January 8, 1990
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 8, 1990
Creator:
Drew, Charles C.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Geometric effects in tomographic reconstruction
In x-ray and ion-beam computerized tomography, there are a number of reconstruction effects, manifested as artifacts, that can be attributed to the geometry of the experimental setup and of the object being scanned. In this work, we will examine four geometric effects that are common to first-and third-generation (parallel beam, 180 degree) computerized tomography (CT) scanners and suggest solutions for each problem. The geometric effects focused on in this paper are: X-pattern'' artifacts (believed to be caused by several errors), edge-generated ringing artifacts (due to improper choice of the reconstruction filter and cutoff frequency), circular-ring artifacts (caused by employing uncalibrated detectors), and tuning-fork artifacts (generated by an incorrectly specified center-of-rotation). Examples of four effects are presented. The X-pattern and edge-generated ringing artifacts are presented with actual experimental data introducing the artifact. given the source of the artifact, we present simulated data designed to replicate the artifact. Finally, we suggest ways to reduce or completely remove these artifacts. The circular-ring and tuning-fork artifacts are introduced with actual experimental data as well, while digital signal processing solutions are employed to remove the artifacts from the data. 15 refs., 12 figs.
Date:
January 8, 1990
Creator:
Barnes, F. L.; Azevedo, S. G.; Martz, H. E., Jr.; Roberson, G. P.; Schneberk, D. J. & Skeate, M. F.
Object Type:
Report
System:
The UNT Digital Library
[Historic Property, Photograph 2004-08]
Photograph of a historic property located at 406 E Grand in Yoakum, Texas.
Date:
January 8, 1990
Creator:
Texas Historical Commission
Object Type:
Photograph
System:
The Portal to Texas History
[Historic Property, Photograph 2010-08]
Photograph of a historic property located at 205 Dallas in Yoakum, Texas.
Date:
January 8, 1990
Creator:
Texas Historical Commission
Object Type:
Photograph
System:
The Portal to Texas History
Jacksboro Gazette-News (Jacksboro, Tex.), Vol. 109, No. 36, Ed. 1 Monday, January 8, 1990
Weekly newspaper from Jacksboro, Texas that includes local, state, and national news along with extensive advertising.
Date:
January 8, 1990
Creator:
McGee, Leigh
Object Type:
Newspaper
System:
The Portal to Texas History
[News Clip: Continental]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
January 8, 1990, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Downtown Mall]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
January 8, 1990, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Downtown Mall]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
January 8, 1990, 5:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Drug treatment]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 10 P.M.
Date:
January 8, 1990
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Jamaican gangs]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, covering a news story about Jamaican gangs, showing a police press meeting about the cases and still image of an unidentified man. This story aired at 10pm.
Date:
January 8, 1990, 10:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Prop 42]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
January 8, 1990, 5:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Richards]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
January 8, 1990, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Security]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
January 8, 1990, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
Perry Daily Journal (Perry, Okla.), Vol. 96, No. 281, Ed. 1 Monday, January 8, 1990
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 8, 1990
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0092.0957]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Is it sill grand? Nichols Hills Mayor William Blaik kneels to check the quality of an Oklahoma County road crew's work as District 3 County Commissioner Fred Snyder looks on."
Date:
January 8, 1990
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0148.0512]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Pete Crisswell is at home at Remington Park, whether witnessing to jockeys, horse owners, grooms and stall hands or praying for the horse."
Date:
January 8, 1990
Creator:
Hellstern, Paul
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0410B.0827]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Myriad Gardening chores."
Date:
January 8, 1990
Creator:
Southerland, Paul B.
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0425B.0007]
Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date:
January 8, 1990
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History