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UNT Libraries Government Documents Department
278
Oklahoma Historical Society
45
Sterling Municipal Library
12
UNT Libraries Special Collections
9
Alvin Community College
6
National Museum of the Pacific War/Admiral Nimitz Foundation
6
UNT Music Library
6
Carl Albert Congressional Research and Studies Center
5
Gaines County Library
5
Livingston Municipal Library
5
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Office of Scientific & Technical Information Technical Reports
121
Texas Digital Newspaper Program
119
Congressional Research Service Reports
111
Tocker Foundation Grant
69
Oklahoma Digital Newspaper Program
51
Texas Laws and Resolutions Archive
28
Government Accountability Office Reports
17
The Baytown Sun
12
Chickasha Newspaper Collection
11
Sapulpa Herald
11
88 More
Year
Month
Day
Language
Positron emission mammography imaging
This paper examines current trends in Positron Emission Mammography (PEM) instrumentation and the performance tradeoffs inherent in them. The most common geometry is a pair of parallel planes of detector modules. They subtend a larger solid angle around the breast than conventional PET cameras, and so have both higher efficiency and lower cost. Extensions to this geometry include encircling the breast, measuring the depth of interaction (DOI), and dual-modality imaging (PEM and x-ray mammography, as well as PEM and x-ray guided biopsy). The ultimate utility of PEM may not be decided by instrument performance, but by biological and medical factors, such as the patient to patient variation in radiotracer uptake or the as yet undetermined role of PEM in breast cancer diagnosis and treatment.
Date:
October 2, 2003
Creator:
Moses, William W.
Object Type:
Article
System:
The UNT Digital Library
Progress Towards High Performance, Steady-state Spherical Torus
Research on the Spherical Torus (or Spherical Tokamak) is being pursued to explore the scientific benefits of modifying the field line structure from that in more moderate aspect-ratio devices, such as the conventional tokamak. The Spherical Tours (ST) experiments are being conducted in various U.S. research facilities including the MA-class National Spherical Torus Experiment (NSTX) at Princeton, and three medium-size ST research facilities: Pegasus at University of Wisconsin, HIT-II at University of Washington, and CDX-U at Princeton. In the context of the fusion energy development path being formulated in the U.S., an ST-based Component Test Facility (CTF) and, ultimately a Demo device, are being discussed. For these, it is essential to develop high-performance, steady-state operational scenarios. The relevant scientific issues are energy confinement, MHD stability at high beta (B), noninductive sustainment, ohmic-solenoid-free start-up, and power and particle handling. In the confinement area, the NSTX experiments have shown that the confinement can be up to 50% better than the ITER-98-pby2 H-mode scaling, consistent with the requirements for an ST-based CTF and Demo. In NSTX, CTF-relevant average toroidal beta values bT of up to 35% with the near unity central betaT have been obtained. NSTX will be exploring advanced regimes where bT …
Date:
October 2, 2003
Creator:
Ono, M.; Bell, M. G.; Bell, R. E.; Bigelow, T.; Bitter, M.; Blanchard, W. et al.
Object Type:
Report
System:
The UNT Digital Library
Quarterly Report 9/30/03
In this quarter, LLNL personnel traveled to the Alcoa Technical Center to discuss the current status of simulations and experiments. The previously-noted deficiencies of the fracture model were discussed in detail as were ways to improve its functional form to ensure reasonable behavior over a wider range of pressures and strain rates. Additional experiments to calibrate the model at low strain rates and high triaxiality were reviewed. We expect that ATC will provide the refined fracture model to LLNL shortly. Once available, appropriate modifications will be made in the FEM subroutines, and the validation process for ingot fracture will continue. A simulation is being performed to validate the FEM model for a production facility mill configuration. The current focus is on the evolution of the deformed slab shape with increasing number of reduction passes. A detailed comparison of the slab side profile with experimental results is currently being carried out to identify key parameters controlling the simulated shape. Preliminary results show that the friction model plays a dominant role in the intermediate and final profile shapes. Using details of the deformed shape as a validation metric, additional simulations will be performed to optimize parameter values.
Date:
October 2, 2003
Creator:
Couch, R G
Object Type:
Report
System:
The UNT Digital Library
Rio Grande Herald (Rio Grande City, Tex.), Vol. 90, No. 39, Ed. 1 Thursday, October 2, 2003
Weekly newspaper from Rio Grande City, Texas that includes local, state and national news along with extensive advertising.
Date:
October 2, 2003
Creator:
Roberts, Kenneth
Object Type:
Newspaper
System:
The Portal to Texas History
Sanger Courier (Sanger, Tex.), Vol. 105, No. 40, Ed. 1 Thursday, October 2, 2003
Weekly newspaper from Sanger, Texas that includes local, state, and national news along with extensive advertising.
Date:
October 2, 2003
Creator:
Chase, Kit
Object Type:
Newspaper
System:
The Portal to Texas History
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 89, No. 17, Ed. 1 Thursday, October 2, 2003
Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 2, 2003
Creator:
Broaddus, Matthew B.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Stamford American (Stamford, Tex.), Vol. 83, No. 27, Ed. 1 Thursday, October 2, 2003
Weekly newspaper from Stamford, Texas that includes local, state, and national news along with advertising.
Date:
October 2, 2003
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Terrorism and National Security: Issues and Trends
None
Date:
October 2, 2003
Creator:
Perl, Raphael F.
Object Type:
Report
System:
The UNT Digital Library
Texas Jewish Post (Fort Worth, Tex.), Vol. 57, No. 40, Ed. 1 Thursday, October 2, 2003
Weekly Jewish newspaper from Fort Worth, Texas that includes local, state, and national news along with extensive advertising.
Date:
October 2, 2003
Creator:
Wisch, Rene & Wisch-Ray, Sharon
Object Type:
Newspaper
System:
The Portal to Texas History
Timpson & Tenaha News (Timpson, Tex.), Vol. 18, No. 39, Ed. 1 Thursday, October 2, 2003
Weekly newspaper from Timpson, Texas that includes local, state, and national news along with advertising.
Date:
October 2, 2003
Creator:
Alexander, Nancy
Object Type:
Newspaper
System:
The Portal to Texas History
Today Cedar Hill (Duncanville, Tex.), Vol. 38, No. 27, Ed. 1 Thursday, October 2, 2003
Weekly newspaper published in Duncanville, Texas that includes local Cedar Hill, state, and national news along with advertising.
Date:
October 2, 2003
Creator:
Gooch, Robin
Object Type:
Newspaper
System:
The Portal to Texas History
The Tulia Herald (Tulia, Tex.), Vol. 95, No. 40, Ed. 1 Thursday, October 2, 2003
Weekly newspaper from Tulia, Texas that includes local, state and national news along with extensive advertising.
Date:
October 2, 2003
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Vlasov simulations of beams with a moving grid
Thanks to the rapid increase of computing power in recent years, simulations of plasmas and particle beams based on direct solution of the Vlasov equation on a multi-dimensional phase-space grid are becoming attractive as an alternative to Particle-In-Cell (PIC) simulations. Their strength lies essentially in the fact that they are noiseless and that all parts of phase space, including the tail of the distribution, are equally well resolved. Their major drawback is that, for inhomogeneous systems, many of the grid points (where no particles are present) are wasted. This is especially the case for beam simulations where the beam moves rapidly through the phase space (due to varying alternating-gradient focusing forces, for example). This inefficiency has made such Vlasov simulations unsuitable for those cases.
Date:
October 2, 2003
Creator:
Friedman, A; Sonnendrucker, E; Filbet, F; Oudet, E & Vay, J
Object Type:
Article
System:
The UNT Digital Library
War on Drugs: The National Youth Anti-Drug Media Campaign
None
Date:
October 2, 2003
Creator:
Eddy, Mark
Object Type:
Report
System:
The UNT Digital Library
Water Quality: Implementing the Clean Water Act
None
Date:
October 2, 2003
Creator:
Copeland, Claudia
Object Type:
Report
System:
The UNT Digital Library
The Wynnewood Gazette (Wynnewood, Okla.), Vol. 101, No. 27, Ed. 1 Thursday, October 2, 2003
Weekly newspaper from Wynnewood, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 2, 2003
Creator:
unknown
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
XPS Studies of Yb14MnSb11 and Yb14ZnSb11
Measurements of core and valence electronic states of single crystals of the rare earth transition metal Zintl phases Yb{sub 14}MnSb{sub 11} and Yb{sub 14}ZnSb{sub 11} were performed using the X-ray photoelectron spectroscopy station of Beamline 7 at the Advanced Light Source. Sample surfaces of Yb{sub 14}MnSb{sub 11} and Yb{sub 14}ZnSb{sub 11} were measured as received, after Ar{sup +} ion bombardment, and after cleaving in situ. Detailed analysis of the clean Mn and Zn analog sample surfaces reveal a significant contribution of both Yb{sup 3+} and Yb{sup 2+} 4f states in the valence band region for the Zn analog and no contribution of Yb{sup 3+} states to the valence band for the Mn analog. This result is predicted for the Zn analog by Zintl counting rules, and single crystal X-ray diffraction studies presented here also support the mixed valency of Yb for Yb{sub 14}ZnSb{sub 11}. Further detailed analysis of the core and valence band structure of both Yb{sub 14}MnSb{sub 11} and Yb{sub 14}ZnSb{sub 11} will be presented.
Date:
October 2, 2003
Creator:
Holm, A. P.; Ozawa, T. C.; Kauzlarich, S. M.; Morton, S. A.; Waddill, G. D.; Pickett, W. E. et al.
Object Type:
Report
System:
The UNT Digital Library
The Air Force KC-767 Tanker Lease Proposal: Key Issues for Congress
The Air Force is proposing to replace 133 of its oldest Boeing KC-135E aerial refueling tanker aircraft by leasing 100 new Boeing KC-767 tankers instead of initially buying them outright. The proposed lease was authorized by Section 8159 of the FY2002 DOD Appropriations Act (P.L. 107-117 of January 10, 2002). The main issue for Congress is whether to approve or disapprove the lease. This report examines the lease proposal and its ramifications by providing background information on the Air Force’s tanker fleet, the Boeing 767 tanker, and the proposed lease itself. Then the report analyzes potential oversight issues for Congress relating to the merits of the proposed lease:
Date:
September 2, 2003
Creator:
Bolkcom, Christopher
Object Type:
Report
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 105, No. 144, Ed. 1 Tuesday, September 2, 2003
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 2, 2003
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Analyses of coupled hydrological-mechanical effects during drilling of the FEBEX tunnel at Grimsel
This paper presents analyses of coupled hydrological-mechanical (HM) processes during drilling of the FEBEX tunnel, located in fractured granite at Grimsel, Switzerland. Two and three-dimensional transient finite-element simulations were performed to investigate HM-induced fluid-pressure pulses, observed in the vicinity of the FEBEX tunnel during its excavation in 1995. The results show that fluid-pressure responses observed in the rock mass during TBM drilling of the FEBEX tunnel could not be captured using current estimates of regional stress. It was also shown that the measured pressure responses can be captured in both two and three-dimensional simulations if the stress field is rotated such that contraction (compressive strain rate) and corresponding increases in mean stress occur on the side of the drift, where increased fluid pressure spikes were observed.
Date:
September 2, 2003
Creator:
Rutqvist, J.; Rejeb, A.; Tijani, M. & Tsang, C.-F.
Object Type:
Article
System:
The UNT Digital Library
Atmospheric Radiation Measurement Program Facilities Newsletter, August 2003.
Monthly newsletter discussing news and activities related to the Atmospheric Radiation Measurement Program, articles about weather and atmospheric phenomena, and other related topics.
Date:
September 2, 2003
Creator:
Atmospheric Radiation Measurement Program (U.S.)
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Automated Diagnostics Software Requirements Specification, Version 1.1
This document specifies requirements for a computerized automated diagnostic tool for the detection of faults in certain heating, ventilation, and air-conditioning (HVAC) system components. The automated diagnostic tool is being developed for Architectural Energy Corporation (AEC) by Battelle as part of a program sponsored by the California Energy Commission (CEC). Supplemental cost-share funds are provided by U.S. Department of Energy through the Pacific Northwest National Laboratory (PNNL). This Requirements Specification (RS) specifies the essential capabilities required of the automated diagnostic tool. The purpose of this document is to clarify for AEC, the California Energy Commission (CEC), the Office of Buildings Programs, Office of Energy Efficiency and Renewable Energy (EERN) of the U.S. Department of Energy, and the project team the results that must be achieved by the automated diagnostic tool. The automated diagnostic tool detects and identifies faults in chillers and cooling tower subsystems of HVAC units using sensed data acquired from the unit, unit specifications, unit installation and configuration data, and unit operation data (such as schedules). The tool is a software product that will be utilized primarily by building operators and facilities managers and only secondarily by HVAC service technicians, energy service providers, and operation supervisors.
Date:
September 2, 2003
Creator:
Sisk, Daniel R.; Brambley, Michael R.; Carlon, Teresa A. & Briggs, Robert S.
Object Type:
Report
System:
The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 81, No. 278, Ed. 1 Tuesday, September 2, 2003
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
September 2, 2003
Creator:
Cash, Wanda Garner
Object Type:
Newspaper
System:
The Portal to Texas History
The Boerne Star (Boerne, Tex.), Vol. 97, No. 71, Ed. 1 Tuesday, September 2, 2003
Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
September 2, 2003
Creator:
Cartwright, Brian
Object Type:
Newspaper
System:
The Portal to Texas History