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UNT Libraries Government Documents Department
551
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84
Oklahoma Historical Society
69
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21
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12
National Museum of the Pacific War/Admiral Nimitz Foundation
8
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7
Carl Albert Congressional Research and Studies Center
4
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3
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Office of Scientific & Technical Information Technical Reports
269
Defense Base Closure and Realignment Commission
182
Texas Digital Newspaper Program
68
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54
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44
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43
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42
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30
Tocker Foundation Grant
30
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20
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Results:
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B physics: first evidence for b_s0 --> phi phi decay and measurements of branching ratio and a_cp for b+ --> phi k+
We present the first evidence of charmless decays of the B{sub s}{sup 0} meson, the decay B{sub s}{sup 0} {yields} {phi}{phi}, and a measurement of the Branching Ratio BR(B{sub s}{sup 0} {yields} {phi}{phi}) using 180 pb{sup -1} of data collected by the CDF II experiment at the Fermilab Tevatron collider. In addition, the BR and direct CP asymmetry for the B{sup +} {yields} {phi}K{sup +} decay are measured.
Date:
May 31, 2005
Creator:
Acosta, D.
Object Type:
Report
System:
The UNT Digital Library
Production Well Performance Enhancement using Sonication Technology
The objective of this project was to develop a sonic well performance enhancement technology that focused on near wellbore formation damage. In order to successfully achieve this objective, a three-year project was defined. The entire project was broken into four tasks. The overall objective of all this was to foster a better understanding of the mechanisms involved in sonic energy interactions with fluid flow in porous media and adapt such knowledge for field applications. The fours tasks are: • Laboratory studies • Mathematical modeling • Sonic tool design and development • Field demonstration The project was designed to be completed in three years; however, due to budget cuts, support was only provided for the first year, and hence the full objective of the project could not be accomplished. This report summarizes what was accomplished with the support provided by the US Department of Energy. Experiments performed focused on determining the inception of cavitation, studying thermal dissipation under cavitation conditions, investigating sonic energy interactions with glass beads and oil, and studying the effects of sonication on crude oil properties. Our findings show that the voltage threshold for onset of cavitation is independent of transducer-hydrophone separation distance. In addition, thermal dissipation under …
Date:
December 31, 2005
Creator:
Adewumi, Michael A.; Ityokumbul, M. Thaddeus; Watson, Robert W.; Eltohami, Eltohami; Farias, Mario; Heckman, Glenn et al.
Object Type:
Report
System:
The UNT Digital Library
Development of a Novel Catalyst for NO Decomposition
Air pollution arising from the emission of nitrogen oxides as a result of combustion taking place in boilers, furnaces and engines, has increasingly been recognized as a problem. New methods to remove NO{sub x} emissions significantly and economically must be developed. The current technology for post-combustion removal of NO is the selective catalytic reduction (SCR) of NO by ammonia or possibly by a hydrocarbon such as methane. The catalytic decomposition of NO to give N{sub 2} will be preferable to the SCR process because it will eliminate the costs and operating problems associated with the use of an external reducing species. The most promising decomposition catalysts are transition metal (especially copper)-exchanged zeolites, perovskites, and noble metals supported on metal oxides such as alumina, silica, and ceria. The main shortcoming of the noble metal reducible oxide (NMRO) catalysts is that they are prone to deactivation by oxygen. It has been reported that catalysts containing tin oxide show oxygen adsorption behavior that may involve hydroxyl groups attached to the tin oxide. This is different than that observed with other noble metal-metal oxide combinations, which have the oxygen adsorbing on the noble metal and subsequently spilling over to the metal oxide. This observation …
Date:
March 31, 2005
Creator:
Akyurtlu, Ates & Akyurtlu, Jale F
Object Type:
Report
System:
The UNT Digital Library
Greater Understanding of Lipids in Caenorhabditis elegans Exposed to Oxygen Deprivation
Presentation for the 2005 University Scholars Day at the University of North Texas discussing research on lipids in Caenorhabditis elegans exposed to oxygen deprivation.
Date:
March 31, 2005
Creator:
Alarcón, Jemma & Padilla, Pamela A.
Object Type:
Presentation
System:
The UNT Digital Library
Laser glazing of rails - WBB/IWS tests (CNRC-Ottawa).
None
Date:
January 31, 2005
Creator:
Aldajah, S.; Fenske, G.; Ajayi, L.; Reed, C.; Xu, Z. & DiMelfi, R.
Object Type:
Report
System:
The UNT Digital Library
Timpson & Tenaha News (Timpson, Tex.), Vol. 20, No. 12, Ed. 1 Thursday, March 31, 2005
Weekly newspaper from Timpson, Texas that includes local, state, and national news along with advertising.
Date:
March 31, 2005
Creator:
Alexander, Nancy
Object Type:
Newspaper
System:
The Portal to Texas History
Membership of the 109th Congress: A Profile
This report presents a profile of the membership of the 109th Congress. Statistical information is included on selected characteristics of Members. This includes data on party affiliation; average age and length of service; occupation; religious affiliation; female and minority Members; foreign-born Members; and military service.
Date:
May 31, 2005
Creator:
Amer, Mildred L.
Object Type:
Report
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 106, No. 254, Ed. 1 Monday, January 31, 2005
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 31, 2005
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 106, No. 304, Ed. 1 Thursday, March 31, 2005
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
March 31, 2005
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 107, No. 51, Ed. 1 Tuesday, May 31, 2005
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
May 31, 2005
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 107, No. 102, Ed. 1 Sunday, July 31, 2005
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
July 31, 2005
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 107, No. 129, Ed. 1 Wednesday, August 31, 2005
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 31, 2005
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Simulation of Hypervelocity Penetration in Limestone
A parameter study was performed to examine the (shock) damage obtained with long-rod and spherical mono-material penetrators impacting two varieties of limestone. In all cases, the impacts were assumed to be normal to the plane of the rock and at zero angle of attack (in the case of the rods). Impact velocities ranged to 15 km/s but most calculations were performed at 4 and 6 km/s and the penetrator mass was fixed at 1000 kg. For unlined underground structures, incipient damage was defined to occur when the peak stress, {sigma}{sub pk}, exceeds 1 kb (100 MPa) and the applied impulse per unit area, I{sub pk}, exceeds 1 ktap (1 kb-{micro}s). Severe damage was assumed to occur when {sigma}{sub pk} exceeds 1 kb and I{sub pk} exceeds 1000 ktaps. Using the latter definition it was found that severe damage in hard, non-porous limestone with spherical impactors extended to a depth of 9 m on-axis for an impact velocity of 4 km/s and 12 m at 6 km/s. Cylinders with length-to-diameter (L/D) ratio of 8.75 achieved depth to severe damage of 23 m and 40 m, respectively under the same conditions. For a limestone medium with 2% initial gas porosity, the latter …
Date:
May 31, 2005
Creator:
Antoun, T; Glenn, L; Walton, O; Goldstein, P; Lomov, I & Liu, B
Object Type:
Article
System:
The UNT Digital Library
National Route 66 Old Town Museum Complex
Photograph of a scene at the National Route 66 Old Town Museum Complex, off Route 66.
Date:
January 31, 2005
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
National Route 66 Old Town Museum Complex
Photograph of a scene at the National Route 66 Old Town Museum Complex, off Route 66.
Date:
January 31, 2005
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
National Route 66 Old Town Museum Complex
Photograph of a scene at the National Route 66 Old Town Museum Complex, off Route 66.
Date:
January 31, 2005
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
National Route 66 Old Town Museum Complex
Photograph of a scene at the National Route 66 Old Town Museum Complex, off Route 66.
Date:
January 31, 2005
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
National Route 66 Old Town Museum Complex
Photograph of a scene at the National Route 66 Old Town Museum Complex, off Route 66.
Date:
January 31, 2005
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
National Route 66 Old Town Museum Complex
Photograph of a scene at the National Route 66 Old Town Museum Complex, off Route 66.
Date:
January 31, 2005
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
National Route 66 Old Town Museum Complex
Photograph of a scene at the National Route 66 Old Town Museum Complex, off Route 66.
Date:
January 31, 2005
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
National Route 66 Old Town Museum Complex
Photograph of a scene at the National Route 66 Old Town Museum Complex, off Route 66.
Date:
January 31, 2005
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
National Route 66 Old Town Museum Complex
Photograph of a scene at the National Route 66 Old Town Museum Complex, off Route 66.
Date:
January 31, 2005
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
National Route 66 Old Town Museum Complex
Photograph of a scene at the National Route 66 Old Town Museum Complex, off Route 66.
Date:
January 31, 2005
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
National Route 66 Old Town Museum Complex
Photograph of a scene at the National Route 66 Old Town Museum Complex, off Route 66.
Date:
January 31, 2005
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History