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Glossary: Carbon dioxide and climate
This Glossary contains definitions of selected CO{sub 2}-related terms as well as tables containing information related to CO{sub 2} and climate. Each term is defined with an emphasis on its relationship to CO{sub 2} and climate. Many of the definitions are then followed by a more detailed description of the term and its use. References to the literature from which the definitions were taken are listed at the end of the Glossary.
Date:
August 1, 1990
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
[Letter from Cassandra Broadus to Sharon Warwick, August 27, 1990]
Photocopy of a letter from Cassandra Broadus to Sharon Warwick, in regards to the material that Warwick is using in class to teach her students. Enclosed in the letter Broadus has given suggestions to enhance the material better and has included materials that Broadus believes Warwick will find interesting such as Art History Games and other materials to focus on the children's perceptions. Thematic units are enclosed with the letter.
Date:
August 27, 1990
Creator:
Broadus, Cassandra
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Bill McCarter to Jan Schronk, August 24, 1990]
Photocopy of a letter from Bill McCarter, co-director of North Texas Institute for Educators on the Visual Arts, to Jan Schronk, Art Supervisor of Hurst-Euless-Bedford ISD. Hoping the presentation that Schronk attended, fulfilled basic expectations she had in terms of understanding DBAE better, and that the art specialists who participated in the workshop have a better understanding of NTIEVA's goals for the HEB district.
Date:
August 24, 1990
Creator:
McCarter, William
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Bill McCarter to Nicole Murphy Holland, August 24, 1990]
Photocopy of a letter from Bill McCarter, co-director of North Texas Institute for Educators on the Visual Arts, to Nicole Murphy Holland, Vice President for Exhibitions InterCultura. In regards of McCarter's enthusiasm for the presentation regarding "The Wanderers," and mentions David Coffey doing a superb job amplifying the content written by Andrew Harris. McCarter says that it is imperative that art teachers at both an elementary and secondary level be exposed to excellent presentations and that Georgia Blades is working with the program for Texas Art Education Fall Meeting in Fort Worth, hoping that Holland and Blades could connect for a repeat presentation to the members of TAEA. Enclosed in the letter to Holland, McCarter has sent a newsletter of the National Art Education Association, for Holland to get a feeling of strength from the teacher organization. Newsletter not present with letter.
Date:
August 24, 1990
Creator:
McCarter, William
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Bill McCarter to Peggy Mitchell, August 24, 1990]
Photocopy of a letter from Bill McCarter, co-director of North Texas Institute for Educators on the Visual Arts, to Peggy Mitchell, teacher at Bedford Heights Elementary. McCarter writes that Mitchell's participation in the workshop for Art Teachers from Hurst-Euless-Bedford ISD was very appreciated and that Mitchell brings a special insight into the problems NTIEVA faces. McCarter writes that Mitchell and Sonja Starnes should be able to build a DBAE program for the schools.
Date:
August 24, 1990
Creator:
McCarter, William
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Nancy Cason to Nicole Holland, August, 15, 1990]
Photocopy of a letter from Nancy Cason, North Texas Institute for Educators on the Visual Arts, to Nicole Holland, InterCultura, in regards to their meeting and about the upcoming "Wanderers" exhibition and how NTIEVA might assist Institute K-1 teachers and art specialists in preparing their students for it. Cason writes that they will mention the exhibition in the October NTIEVA newsletter, outlining ideas for connections with K-1 social studies and larger global theme of world peace. Cason will keep in touch with updates about the newsletter.
Date:
August 15, 1990
Creator:
Cason, Nancy
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Bill McCarter to Sonja Starnes, August 24, 1990]
Photocopy of a letter from Bill McCarter, co-director of North Texas Institute for Educators on the Visual Arts, to Sonja Starnes, Art Teacher at Bedford Heights Elementary. In regards to Starnes's participation in the workshop for elementary art teaches at Hurst-Euless-Bedford ISD. Starnes's leadership was insightful for the other faculty about the implementation of DBAE, discipline-based arts education, in HEB schools and McCarter is looking forward to working with her.
Date:
August 24, 1990
Creator:
McCarter, William
Object Type:
Letter
System:
The UNT Digital Library
TRAC L reactor model: Geometry review and benchmarking
The analysis of the Design Basis Loss of Coolant Acident (LOCA) for Savannah River Site (SRS) reactors involves the best estimate reactor system thermal-hydraulics code TRAC-PFI/MOD1. Power levels for the L-3.1 and P-10.2 subcycles were determined based, in part, on TRAC analyses of the first few seconds of a plenum inlet break LOCA. The TRAC code is currently being used to analyze reactor system response for the Double Ended Guillotine Break (DEGB) LOCA, the Expansion Joint Bellows Break LOCA, the Loss of Pumping Accident (LOPA), and the Pump Shaft Break event. Currently, the DEGB LOCA analysis is performed with TRAC only for the flow instability (FI) phase of the accident. This analysis provides input to the determination of operating power limits for the K-14.1 subcycle.
Date:
August 1, 1990
Creator:
Griggs, D.P. (Westinghouse Savannah River Co., Aiken, SC (United States)) & Cozzuol, J.M. (Idaho National Engineering Lab., Idaho Falls, ID (United States))
Object Type:
Report
System:
The UNT Digital Library
Innovative Clean Coal Technology (ICCT): Demonstration of innovative applications of technology for cost reductions to the CT-121 FGD process
The objective of this project is to demonstrate on a commercial scale several innovative applications of cost-reducing technology to the Chiyoda Thoroughbred-121 (CT-121) process. CT-121 is a second generation flue gas desulfurization (FGD) process which is considered by the Electric Power Research Institute (EPRI) and Southern Company Services (SCS) to be one of the most reliable and lowest cost FGD options for high-sulfur coal-fired utility boiler applications. Demonstrations of the innovative design approaches will further reduce the cost and provide a clear advantage to CT121 relative to competing technology.
Date:
August 6, 1990
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
A first simulation study of the barrel-endcap transition region in a calorimeter of the scintillator tile design
We have made a first study of the calorimetric response to 10 GeV/c charged pions in the transition region between barrel and endcap for the scintillator-tile design pursued at Argonne National Laboratory using the simulation program ANLSIM. For (very nearly) projective tower orientations in the barrel, the crack appears deep within a narrow angular range, causing a loss of the response in that region up to 40%. Pointing the towers onto the beam axis 35 cm or more away from the nominal-interaction point leads to a shortened depth of the barrel-endcap crack as seen by particles incident from the interaction region, cutting the maximum loss down by almost one half. The worsening of the resolution follows the same trend. Introduction of a solenoidal coil in front of the calorimeter causes an overall degradation of the response by an amount nearly comparable to the effect of the crack. Electrons of the same incident momentum are more strongly affected by the coil than pions but see only a much narrower region of degradation by the crack. 15 refs., 6 figs., 2 tabs.
Date:
August 24, 1990
Creator:
Proudfoot, J. & Trost, H. J.
Object Type:
Report
System:
The UNT Digital Library
Ductile nickel-silicon alloy
An improvement over prior compositions wherein the ductility of Ni-Si alloys are improved with minor alloying additions of hafnium or zirconium.
Date:
August 6, 1990
Creator:
Oliver, W. C.
Object Type:
Patent
System:
The UNT Digital Library
Development of alternative oxygen production source using a zirconia solid electrolyte membrane
The objective of this multiyear effort was the development, fabrication and testing of a zirconia oxygen production module capable of delivering approximately 100 liters/minute (LPM) of oxygen. The work discussed in this report consists of development and improvement of the zirconia cell along with manufacture of cell components, preliminary design of the final plant, additional economic analysis and industrial participation. (VC)
Date:
August 1, 1990
Creator:
Suitor, J. W.; Clark, D. J. & Losey, R. W.
Object Type:
Report
System:
The UNT Digital Library
Critical heat flux concerns during the flow instability phase of a DEGB LOCA
Arguments are presented that support the proposal that a separate burnout risk analysis, for the Flow Instability (FI) phase of a LOCA, not be required for reactor restart. With expected reactor power limits, flow instability will occur before critical heat flux (CHF). Since FI power limits preclude the occurrence of flow instability in a bounding accident, a DEGB LOCA, the risk of CHF and attendant burnout is negligible. A review of RDAP data revealed that in the past reactor assemblies operated at flow and power conditions similar to those expected in a LOCA without burnout occurring. This is strong bounding empirical evidence, without the scaling concerns of laboratory experiments. A bounding analysis of the influences of assembly non-idealities on CHF, power tilts, and channel eccentricity, is included. The margin between operating heat fluxes, during the postulated LOCA, and CHF was quantified by scoping calculations. Based on measured azimuthal power variations, the local heat flux would have to be more than 20 standard deviations above the calculated mean heat flux for CHF to occur.
Date:
August 1, 1990
Creator:
Shadday, M.A. Jr.
Object Type:
Report
System:
The UNT Digital Library
Guest Artist Recital: 1990-08-08 - Krakow Youth Jazz Ensemble
Access:
Use of this item is restricted to the UNT Community
Guest jazz concert performed at the UNT College of Music Concert Hall.
Date:
August 8, 1990
Creator:
Krakow Youth Jazz Ensemble
Object Type:
Sound
System:
The UNT Digital Library
Application of the NNWSI [Nevada Nuclear Waste Storage Investigations] Unsaturated Test Method to Actinide Doped SRL [Savannah River Laboratory] 165 Type Glass
The results of tests done using the Unsaturated Test Method are presented. These tests, done to determine the suitability of glass in a potential high-level waste repository as developed by the Nevada Nuclear Waste Storage Investigations Project, simulate conditions anticipated for the post-containment phase of the repository when only limited contact between the waste form and water is expected. The reaction of glass occurs via processes that are initiated due to glass/water vapor and glass/liquid water contact. Vapor interaction results in the initiation of an exchange process between water and the more mobile species (alkalis and boron) in the glass. The liquid reaction produces interactions similar to those seen in standard leaching tests, except due to the limited amount of water present and the presence of partially sensitized 304L stainless steel, the formation of reaction products greatly exceeds that found in MCC-1 type leach tests. The effect of sensitized stainless steel on the reaction is to enhance breakdown of the glass matrix thereby increasing the release of the transuranic elements from the glass. However, most of the plutonium and americium released is entrained by either the metal components of the test or by the reaction phases, and is not released …
Date:
August 1990
Creator:
Bates, John K. & Gerding, Thomas J.
Object Type:
Report
System:
The UNT Digital Library
Nuclear Technology Programs Semiannual Progress Report: October 1987-March 1988
Progress report of the Argonne National Laboratory's Nuclear Technology Programs, including investigations in applied physical chemistry, separation science and technology, and waste management.
Date:
August 1990
Creator:
Argonne National Laboratory. Chemical Technology Division.
Object Type:
Report
System:
The UNT Digital Library
Nuclear Magnetic Resonance Imaging of Green-State Ceramics
Proton (¹H) nuclear magnetic resonance (NMR) imaging techniques are investigated as a means to nondestructively characterize green-state (unfired) Si{sub 3}N{sub 4} ceramic components. Spectroscopic results indicate that the organic additives used in the injection molding of ceramics behave as soft solids, with broad spectral peak widths (T₂ <0.5 ms) and moderate multicomponent spin-lattice relaxation rates (T{sub 1} ranging from 11 ms to 1 s). Because of the intrinsically different spectral characteristics of the organic additives, conventional-solution NMR imaging techniques cannot be applied to these materials. Hence, the authors developed specialized NMR imaging accessories capable of applying high magnetic field gradients in a back-projection protocol. NMR images were acquired of injection-molded test bars that had been fabricated with different mixing and molding parameters. Organic concentrations determined from the NMR images were correlated with results obtained through destructive testing. The correlation suggests that NMR imaging is a viable technique for quantifying organics in injection-molded green-state ceramics.
Date:
August 1990
Creator:
Gopalsami, Nachappa; Dieckman, S. L.; Ellingson, W. A.; Botto, Robert E.; Wong, P. S.; Yeh, H. C. et al.
Object Type:
Report
System:
The UNT Digital Library
Theory Institute in Automated Reasoning : Held at Argonne National Laboratory, August 6-10, 1990
On August 6--10, 1990, Argonne National Laboratory hosted a Theory Institute in Automated Reasoning. The institute was organized by the Mathematics and Computer Science Division and was supported by special funding from Argonne's Physical Research Program Administration. The focus of the Institute was on the obstacles confronting the effective automation of reasoning. The objective was to lay the groundwork for formulating a theory governing the interrelationship of representation, inference rule, and strategy. Here we summarize the activities that took place during the week-long Institute. We also present an evaluation of the progress achieved-progress that includes the solution of challenge questions, the increasing use of both our database of problems and our automated reasoning program OTTER, and the discovery of new used for OTTER.
Date:
August 1990
Creator:
Wos, Larry
Object Type:
Report
System:
The UNT Digital Library
[Photograph 2012.201.B0135.0483]
Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date:
August 13, 1990
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0144.0556]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "A Senate panel unanimously passed a congressional redistricting plan Monday that would make the congressional delegation happy, while the House toyed with several plans that could put it on a collision course with the Senate."
Date:
August 19, 1990
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0153.0336]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Evalia Darling heard a familiar noise as she was lying in bed one recent morning, a noise she knew from being burglarized seven times in two years. Darling reached for her .38-caliber gun and listened."
Date:
August 1, 1990
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0156.0644]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Marie Peddycoart, Carrie Ferguson and Amanda Martin, 13-year-old students at Deer Creek Middle School, watch the ground drop from beneath them as pilot John Lakkman hits the gas."
Date:
August 31, 1990
Creator:
Klock, Roger
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0162.0453]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Phyllis Diller holds up a pair of pants at a garage sale in Chesaning, Mich."
Date:
August 12, 1990
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0171.0110]
Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date:
August 19, 1990
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History