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1991 Annual Report to the National Science Foundation
The Geometry Center research program has a number of different aspects, most of which involve longer term commitments, such as, development of research software, teams of individuals visually exploring mathematical structures and sponsoring of workshops. The Center is built on the research programs of its faculty. These programs have flourished and interacted under the Center umbrella. There are many interconnections and commonalities between the fields represented. Here, a summary of the research work of each of the faculty members. Some of the research topics are geometric calculus of variations, group theory, geometric algorithms, and computer graphics.
Date:
December 1, 1991
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
1991 Annual report to the National Science Foundation
This report contains discussions by researcher of the center on the computation and visualization of geometric structures. Most of the research involves the following: development of research software; exploration of mathematical structures; and computational crystal growth.
Date:
December 1, 1991
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
1991 Pacific Northwest Loads and Resources Study.
This study establishes the Bonneville Power Administration's (BPA) planning basis for supplying electricity to BPA customers. The Loads and Resources Study is presented in three documents: (1) this summary of federal system and Pacific Northwest region loads and resources; (2) a technical appendix detailing forecasted Pacific Northwest economic trends and loads, and (3) a technical appendix detailing the loads and resources for each major Pacific Northwest generating utility. This analysis updates our 1990 study. BPS's long-range planning incorporates resource availability with a range of forecasted electrical consumption. The forecasted future electrical demands-firm loads--are subtracted from the projected capability of existing resources to determine whether BPA and the region will be surplus or deficit. If resources are greater than loads in any particular year or month, there is a surplus of energy and/or capacity, which BPA can sell to increase revenues. Conversely, if firm loads exceed available resources, there is a deficit of energy and/or capacity, then additional conservation, contract purchases, or generating resources will be needed to meet load growth. This study analyzes the Pacific Northwest's projected loads and available generating resources in two parts: (1) the loads and resources of the federal system, for which BPA is the marketing …
Date:
December 1, 1991
Creator:
United States. Bonneville Power Administration.
Object Type:
Report
System:
The UNT Digital Library
3d Image Reconstruction for PET by Multi-Slice Rebinning and Axial Filtering
Two different approaches are used at present to reconstruct from 3D coincidence data in PET. We refer to these approaches as the single-slice rebinning approach and the fully-3D approach. The single-slice rebinning approach involves geometrical approximations, but it requires the least possible amount of computation. Fully-3D reconstruction algorithms, both iterative and non-iterative, do not make such approximations, but require much more computation. Multi-slice rebinning with axial filtering is a new approach which attempts to achieve the geometrical accuracy of the fully-3D approach with the simplicity and modest amount of computation of the single-slice rebinning approach. The first step (multi-slice rebinning) involves rebinning of coincidence lines into a stack of 2D sinograms, where multiple sinograms are incremented for each oblique coincidence line. This operation is followed by an axial filtering operation, either before or after slice-by-slice reconstruction, to reduce the blurring in the axial direction. Tests with simulated and experimental data indicate that the new method has better geometrical accuracy than single-slice rebinning, at the cost of only a modest increase in computation. 11 refs.
Date:
December 1, 1991
Creator:
Lewitt, R. M.; Muehllehner, G. & Karp, J. S.
Object Type:
Article
System:
The UNT Digital Library
Accelerator Fusion Research Division 1991 summary of activities
This report discusses research projects in the following areas: Heavy-ion fusion accelerator research; magnetic fusion energy; advanced light source; center for x-ray optics; exploratory studies; superconducting magnets; and bevalac operations.
Date:
December 1, 1991
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Accelerator & Fusion Research Division 1991 summary of activities
This report discusses research projects in the following areas: Heavy-ion fusion accelerator research; magnetic fusion energy; advanced light source; center for x-ray optics; exploratory studies; superconducting magnets; and bevalac operations.
Date:
December 1, 1991
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Addressing Data Heterogeneity: Lessons Learned From a Multimedia Risk Assessment
Cleanup activities are currently being conducted by the US Department of Energy (DOE) at a former chemical plant site that has been inactive for more than 20 years. The Army produced nitroaromatic explosives at the 220-acre site during the 1940s, and radioactive materials of the uranium and thorium series were processed there by DOE`s predecessor agency during the 1950s and 1960s. Chemical and radioactive contaminants are present in soil, surface water, sediment, and groundwater at the site as a result of both past releases and disposal activities and subsequent contaminant migration. Samples have been collected from these media over a number of years under both DOE`s environmental monitoring program and the site characterization program of the Superfund process. Results of samples analyses have been compiled in a computerized data base. These data are being evaluated in the context of potential exposure pathways that are currently present at the site or that may be present in the future, in order to estimate possible adverse impacts to human health and the environment in the absence of cleanup. This paper discusses the methodology used to address associated tasks and the lessons learned during the assessment process. Statistical issues and recommended future directions for …
Date:
December 1, 1991
Creator:
Öezkaynak, Halûk; Xue, Jianping; Butler, David A.; Haroun, Lynne A.; MacDonell, Margaret M. & Fingleton, Donald J.
Object Type:
Article
System:
The UNT Digital Library
Advanced atomization concept for CWF burning in small combustors, Phase 2
The program describes a concept referred to as opposed-jet atomization, which is particularly applicable to coal-water fuel (CWF). In the present atomizer design, two opposed jets of CWF are directed at each other and externally encounter a perpendicular blast of air at the collision point to create a spray of much finer droplets. The present Phase 2 program involved further evaluation of the opposed-jet atomizer performance and related tasks.
Date:
December 1, 1991
Creator:
McHale, E. T. & Heaton, H. L.
Object Type:
Report
System:
The UNT Digital Library
Advanced atomization concept for CWF burning in small combustors, Phase 2. Final technical report
The program describes a concept referred to as opposed-jet atomization, which is particularly applicable to coal-water fuel (CWF). In the present atomizer design, two opposed jets of CWF are directed at each other and externally encounter a perpendicular blast of air at the collision point to create a spray of much finer droplets. The present Phase 2 program involved further evaluation of the opposed-jet atomizer performance and related tasks.
Date:
December 1, 1991
Creator:
McHale, E. T. & Heaton, H. L.
Object Type:
Report
System:
The UNT Digital Library
Advanced combustion system for industrial boilers. Final report, Phase 2 activities
None
Date:
December 1, 1991
Creator:
Wagoner, C. L.; Foote, J. P.; Millard, W. P.; Frazier, J. W.; Attig, R. C. & Schulz, R. J.
Object Type:
Report
System:
The UNT Digital Library
Advanced depletion perturbation methods and waste transmutation in the IFR
This report discusses the design of an LMR for burning minor actinides and development of advanced depletion perturbation methods. (LSP).
Date:
December 1, 1991
Creator:
Downar, T.J.
Object Type:
Report
System:
The UNT Digital Library
Advanced depletion perturbation methods and waste transmutation in the IFR. Final report
This report discusses the design of an LMR for burning minor actinides and development of advanced depletion perturbation methods. (LSP).
Date:
December 1, 1991
Creator:
Downar, T. J.
Object Type:
Report
System:
The UNT Digital Library
Advanced development of particle beam probe diagnostic systems
During the period covered by this report the 2 MeV heavy ion beam probe (HIBP) was installed on the TEXt tokamak. This report discusses the initial operating results of this probe.
Date:
December 1, 1991
Creator:
Hickok, R. L.; Crowley, T. P.; Connor, K. A. & Schoch, P. M.
Object Type:
Report
System:
The UNT Digital Library
Advanced development of particle beam probe diagnostic systems. Technical progress report, October 1, 1990--December 15, 1991
During the period covered by this report the 2 MeV heavy ion beam probe (HIBP) was installed on the TEXt tokamak. This report discusses the initial operating results of this probe.
Date:
December 1, 1991
Creator:
Hickok, R. L.; Crowley, T. P.; Connor, K. A. & Schoch, P. M.
Object Type:
Report
System:
The UNT Digital Library
Advanced reactor development: The LMR integral fast reactor program at Argonne
None
Date:
December 1, 1991
Creator:
Till, C. E.
Object Type:
Report
System:
The UNT Digital Library
Air exchange effectiveness of conventional and task ventilation for offices
Air quality and comfort complaints within large buildings are often attributed to air distribution problems. We define three air exchange effectiveness parameters related to air distribution. The first two indicate the indoor air flow pattern (i.e., the extent of short circuiting, mixing, or displacement flow) for an entire building or region. The third parameter is most useful for assessments of the spatial variability of ventilation. We also define the air diffusion effectiveness which indicates the air flow pattern within specific rooms or sections of buildings. The results of measurements of these parameters in US office buildings by the authors and other researchers are reviewed. Almost all measurements indicate very limited short circuiting or displacement flow between locations of air supply and removal. However, a moderate degree of short circuiting is evident from a few measurements in rooms with heated supply air. The results of laboratory-based measurements by the authors are consistent with the field data. Our measurements in office buildings do indicate that ventilation rates can vary substantially between indoor locations, probably due to variation in air supply rates between locations rather than variation in the indoor air flow patterns. One possible method of improving air distribution is to employ …
Date:
December 1, 1991
Creator:
Fisk, W. J.; Faulkner, D. & Prill, R. J.
Object Type:
Article
System:
The UNT Digital Library
Air exchange effectiveness of conventional and task ventilation for offices
Air quality and comfort complaints within large buildings are often attributed to air distribution problems. We define three air exchange effectiveness parameters related to air distribution. The first two indicate the indoor air flow pattern (i.e., the extent of short circuiting, mixing, or displacement flow) for an entire building or region. The third parameter is most useful for assessments of the spatial variability of ventilation. We also define the air diffusion effectiveness which indicates the air flow pattern within specific rooms or sections of buildings. The results of measurements of these parameters in US office buildings by the authors and other researchers are reviewed. Almost all measurements indicate very limited short circuiting or displacement flow between locations of air supply and removal. However, a moderate degree of short circuiting is evident from a few measurements in rooms with heated supply air. The results of laboratory-based measurements by the authors are consistent with the field data. Our measurements in office buildings do indicate that ventilation rates can vary substantially between indoor locations, probably due to variation in air supply rates between locations rather than variation in the indoor air flow patterns. One possible method of improving air distribution is to employ …
Date:
December 1, 1991
Creator:
Fisk, W. J.; Faulkner, D. & Prill, R. J.
Object Type:
Article
System:
The UNT Digital Library
The Allen American (Allen, Tex.), Vol. 22, No. 95, Ed. 1 Sunday, December 1, 1991
Semiweekly newspaper from Allen, Texas that includes local, state, and national news along with advertising.
Date:
December 1, 1991
Creator:
Hutchison, Mark & Epperson, Wayne
Object Type:
Newspaper
System:
The Portal to Texas History
Alternate approaches to verifying the structural adequacy of the Defense High Level Waste Shipping Cask
In the early 1980s, the US Department of Energy/Defense Programs (DOE/DP) initiated a project to develop a safe and efficient transportation system for defense high level waste (DHLW). A long-standing objective of the DHLW transportation project is to develop a truck cask that represents the leading edge of cask technology as well as one that fully complies with all applicable DOE, Nuclear Regulatory Commission (NRC), and Department of Transportation (DOT) regulations. General Atomics (GA) designed the DHLW Truck Shipping Cask using state-of-the-art analytical techniques verified by model testing performed by Sandia National Laboratories (SNL). The analytical techniques include two approaches, inelastic analysis and elastic analysis. This topical report presents the results of the two analytical approaches and the model testing results. The purpose of this work is to show that there are two viable analytical alternatives to verify the structural adequacy of a Type B package and to obtain an NRC license. It addition, this data will help to support the future acceptance by the NRC of inelastic analysis as a tool in packaging design and licensing.
Date:
December 1, 1991
Creator:
Zimmer, A. & Koploy, M.
Object Type:
Report
System:
The UNT Digital Library
Alternate approaches to verifying the structural adequacy of the Defense High Level Waste Shipping Cask
In the early 1980s, the US Department of Energy/Defense Programs (DOE/DP) initiated a project to develop a safe and efficient transportation system for defense high level waste (DHLW). A long-standing objective of the DHLW transportation project is to develop a truck cask that represents the leading edge of cask technology as well as one that fully complies with all applicable DOE, Nuclear Regulatory Commission (NRC), and Department of Transportation (DOT) regulations. General Atomics (GA) designed the DHLW Truck Shipping Cask using state-of-the-art analytical techniques verified by model testing performed by Sandia National Laboratories (SNL). The analytical techniques include two approaches, inelastic analysis and elastic analysis. This topical report presents the results of the two analytical approaches and the model testing results. The purpose of this work is to show that there are two viable analytical alternatives to verify the structural adequacy of a Type B package and to obtain an NRC license. It addition, this data will help to support the future acceptance by the NRC of inelastic analysis as a tool in packaging design and licensing.
Date:
December 1, 1991
Creator:
Zimmer, A. & Koploy, M.
Object Type:
Report
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 91, No. 222, Ed. 1 Sunday, December 1, 1991
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 1, 1991
Creator:
Lomenick, Rick
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Analysis of diagnostic testing of Gladys McCall Well No. 1
Gladys McCall Well No. 1 was flow tested from 1983 to 1987, underwent long-term pressure buildup testing from October 1987 to October 1991, and has recently been re-entered for final diagnostic testing. The combination of a very large, poorly defined reservoir with data from only a single well has required that the testing be carried out over an unusually long time period for an understanding of the pressure maintenance mechanisms to be developed. Ongoing diagnostic testing of the well has been undertaken by DOE to help resolve questions that arose during the analysis of the test data from the eight year depletion and recovery testing. A rather complete summary of the synthesis, correlation and analysis of the earlier test data has recently been published (Riney, 1991.) and is included in this report as an Appendix. Figure 1 (an update of Figure 9 in the Appendix) includes the final pressure buildup data in the comparison with the earlier reservoir simulation model. During October 1991 the Gladys McCall well was flowed twice as part of the diagnostic testing. On October 1 flow was started to clean out the well and to perform a spinner survey to determine the fluid entry distribution across …
Date:
December 1, 1991
Creator:
Riney, T. D. & Garg, S. K.
Object Type:
Report
System:
The UNT Digital Library
Analytical Chemistry Laboratory Progress Report for FY 1991
The purpose of this report is to summarize the activities of the Analytical Chemistry Laboratory (ACL) at Argonne National Laboratory (ANL) for Fiscal Year 1991 (October 1990 through September 1991). This is the eighth annual report for the ACL. The Analytical Chemistry Laboratory is a full-cost-recovery service center, with the primary mission of providing a broad range of analytical chemistry support services to the scientific and engineering programs at ANL. In addition, the ACL conducts a research program in analytical chemistry, works on instrumental and methods development, and provides analytical services for governmental, educational, and industrial organizations. The ACL handles a wide range of analytical problems, from routine standard analyses to unique problems that require significant development of methods and techniques.
Date:
December 1, 1991
Creator:
Green, D. W.; Heinrich, R. R.; Graczyk, D. G.; Lindahl, P. C. & Boparai, A. S.
Object Type:
Report
System:
The UNT Digital Library
Analytical Chemistry Laboratory Progress Report for FY 1991
The purpose of this report is to summarize the activities of the Analytical Chemistry Laboratory (ACL) at Argonne National Laboratory (ANL) for Fiscal Year 1991 (October 1990 through September 1991). This is the eighth annual report for the ACL. The Analytical Chemistry Laboratory is a full-cost-recovery service center, with the primary mission of providing a broad range of analytical chemistry support services to the scientific and engineering programs at ANL. In addition, the ACL conducts a research program in analytical chemistry, works on instrumental and methods development, and provides analytical services for governmental, educational, and industrial organizations. The ACL handles a wide range of analytical problems, from routine standard analyses to unique problems that require significant development of methods and techniques.
Date:
December 1, 1991
Creator:
Green, D. W.; Heinrich, R. R.; Graczyk, D. G.; Lindahl, P. C. & Boparai, A. S.
Object Type:
Report
System:
The UNT Digital Library