Search Results

open access

Analysis and synthesis of models for effects of climate change on agricultural systems. Final report

Description: Our objectives are to develop a new integrative physiological-morphological model of the wheat crop that will behave realistically in high-CO{sub 2} environments, and to update the ALFALFA model to match the wheat model`s photosynthetic structures and microclimates.
Date: July 27, 1992
Creator: Geng, S.; Plant, R. & Loomis, R.
open access

Analysis of K-Area core samples for K-Area formation stabilization work

Description: Foundation stabilization work in K-Area has been recently completed by Bechtel Inc. This effort involved pumping cement and cement-sand grout into unconsolidated sediments under K-Area. Subsequent to stabilization, core samples were collected to document the extent of grout flow in the area. Samples of this core were examined by SRTC personnel in support of the grouting program at the request of Bechtel personnel. This report summarizes the results of the SRTC study.
Date: May 27, 1992
Creator: Langton, C. A.
open access

Analysis of K-Area core samples for K-Area formation stabilization work

Description: Foundation stabilization work in K-Area has been recently completed by Bechtel Inc. This effort involved pumping cement and cement-sand grout into unconsolidated sediments under K-Area. Subsequent to stabilization, core samples were collected to document the extent of grout flow in the area. Samples of this core were examined by SRTC personnel in support of the grouting program at the request of Bechtel personnel. This report summarizes the results of the SRTC study.
Date: May 27, 1992
Creator: Langton, C. A.
open access

Azerbaijan: Basic Facts

Description: This report is on the basic facts of the Republic of Azerbaijan, a nation largely populated by Turkic-speaking Muslims. Includes information on the geographies, demographics, history, political leaders and institutions, and foreign relations of Azerbaijan.
Date: May 27, 1992
Creator: Nichol, Jim
open access

Baseline design/economics for advanced Fischer-Tropsch technology

Description: The objectives of the study are to: Develop a baseline design for indirect liquefaction using advanced Fischer-Tropsch (F-T) technology. Prepare the capital and operating costs for the baseline design. Develop a process flowsheet simulation (PFS) model. The baseline design, the economic analysis, and the computer model will be the major research planning tools that Pittsburgh Energy Technology Center will use to plan, guide, and evaluate its ongoing and future research and commercialization pro… more
Date: April 27, 1992
open access

Baseline design/economics for advanced Fischer-Tropsch technology. Quarterly report, October--December 1991

Description: The objectives of the study are to: Develop a baseline design for indirect liquefaction using advanced Fischer-Tropsch (F-T) technology. Prepare the capital and operating costs for the baseline design. Develop a process flowsheet simulation (PFS) model. The baseline design, the economic analysis, and the computer model will be the major research planning tools that Pittsburgh Energy Technology Center will use to plan, guide, and evaluate its ongoing and future research and commercialization pro… more
Date: April 27, 1992
open access

Bench-scale co-processing. Quarterly report No. 14, October 1, 1991--December 31, 1991

Description: This report, which is the 14th quarterly report for Contract DE-AC22-87PC79818, covers the quarter from October 1991 to December 1991. The objective of this contract is to extend and optimize UOP`s single-stage, slurry-catalyzed co-processing scheme. The current task is to complete a long-term operability run using a molybdenum-based catalyst at approximately 460{degrees}C. The objectives of this study are to demonstrate that high-severity conditions can be run for an extended period (at least … more
Date: March 27, 1992
Creator: Piasecki, C. A. & Gatsis, J. G.
open access

Catalyst and process development for synthesis gas conversion to isobutylene

Description: A rate equation for carbon monoxide consumption showing first order in CO and 0.5 order in hydrogen indicates the rate controlling step involves dissociated hydrogen. The inhibition of the rate with carbon dioxide is also shown. Examination of the hydrocarbon distributions indicates a see-saw effect with the C[sub 4]s representing the fulcrum and methane and C[sub 5][sup +] the end points. The shift in the distributions tends to be towards the C[sub 5][sup +] for high pressures and long residen… more
Date: July 27, 1992
Creator: Anthony, R. G. & Akgerman, A.
open access

Catalyst and process development for synthesis gas conversion to isobutylene. Quarterly report, April 1, 1992--June 30, 1992

Description: A rate equation for carbon monoxide consumption showing first order in CO and 0.5 order in hydrogen indicates the rate controlling step involves dissociated hydrogen. The inhibition of the rate with carbon dioxide is also shown. Examination of the hydrocarbon distributions indicates a see-saw effect with the C{sub 4}s representing the fulcrum and methane and C{sub 5}{sup +} the end points. The shift in the distributions tends to be towards the C{sub 5}{sup +} for high pressures and long residen… more
Date: July 27, 1992
Creator: Anthony, R. G. & Akgerman, A.
open access

Computer Science and Telecommunications Board summary of activities

Description: The Computer Science and Telecommunications Board (CSTB) considers technical and policy issues pertaining to computer science, telecommunications, and associated technologies. CSTB actively disseminates the results of its completed projects to those in a position to help implement their recommendations or otherwise use their insights. It provides a forum for the exchange of information on computer science, computing technology, and telecommunications. This report discusses the major accomplishm… more
Date: March 27, 1992
Creator: Blumenthal, M. S.
open access

Computer Science and Telecommunications Board summary of activities

Description: The Computer Science and Telecommunications Board (CSTB) considers technical and policy issues pertaining to computer science, telecommunications, and associated technologies. CSTB actively disseminates the results of its completed projects to those in a position to help implement their recommendations or otherwise use their insights. It provides a forum for the exchange of information on computer science, computing technology, and telecommunications. This report discusses the major accomplishm… more
Date: March 27, 1992
Creator: Blumenthal, M. S.
open access

Confined zone dispersion flue gas desulfurization demonstration

Description: The confined zone dispersion (CZD) process involves flue gas post-treatment, physically located between a boiler's outlet and its particulate collector, which in the majority of cases is an electrostatic precipitator. The features that distinguish this process from other similar injection processes are: Injection of an alkaline slurry directly into the duct, instead of injection of dry solids into the duct ahead of a fabric filter. Use of an ultrafine calcium/magnesium hydroxide, type S pressur… more
Date: February 27, 1992
open access

Confined zone dispersion flue gas desulfurization demonstration. Volume 1, Quarterly report No. 4, August 1, 1991--October 31, 1991

Description: The confined zone dispersion (CZD) process involves flue gas post-treatment, physically located between a boiler`s outlet and its particulate collector, which in the majority of cases is an electrostatic precipitator. The features that distinguish this process from other similar injection processes are: Injection of an alkaline slurry directly into the duct, instead of injection of dry solids into the duct ahead of a fabric filter. Use of an ultrafine calcium/magnesium hydroxide, type S pressur… more
Date: February 27, 1992
open access

CP Violation in the Decays B sup 0 Yields. Psi. K sub s and B sup 0 Yields. pi. sup +. pi. sup minus : A Probe for New Physics

Description: We point out the strong correlation between the CP-violating asymmetries in the decays B{sup o} {yields} {Psi}K{sub s} and B{sup o} {yields} {pi}{sup +}{pi}{sup {minus}} that is predicted by the Kobayashi-Maskawa model. This results in a very restricted allowed region for the asymmetries, and so their measurement will provide a powerful test of the standard model. To show how new physics may give very different results, we look at the predictions of a simple model where both the standard model … more
Date: May 27, 1992
Creator: Soares, J. M. & Wolfenstein, L.
open access

CP Violation in the Decays B{sup 0} {yields} {Psi}K{sub s} and B{sup 0} {yields} {pi}{sup +}{pi}{sup {minus}}: A Probe for New Physics

Description: We point out the strong correlation between the CP-violating asymmetries in the decays B{sup o} {yields} {Psi}K{sub s} and B{sup o} {yields} {pi}{sup +}{pi}{sup {minus}} that is predicted by the Kobayashi-Maskawa model. This results in a very restricted allowed region for the asymmetries, and so their measurement will provide a powerful test of the standard model. To show how new physics may give very different results, we look at the predictions of a simple model where both the standard model … more
Date: May 27, 1992
Creator: Soares, J. M. & Wolfenstein, L.
open access

D0 Collision Hall Outdoor Fresh Air Makeup

Description: This note will briefly describe the collision hall ventilation system and how D0 will monitor outside air makeup and what actions occur in the event of system failures. The Dzero collision hall has two different fresh air makeup conditions it must meet. They are: (1) Tunnel Barriers removed-Fresh air makeup = 4500 CFM; and (2) Tunnel Barriers in place-Fresh air makeup = 2800 CFM. This note demonstrates how the fresh air minimums are met and guaranteed. The air flow paths and ducts at D0 for bot… more
Date: March 27, 1992
Creator: Markley, D.
open access

The design of the AIE: An object-oriented application development system

Description: Three years ago, in response to our challenging development context, the Advanced Modeling and Analysis Section designed and implemented an object-oriented environment -- the Application Interface Engine (AIE). Our prototyping requirements forced existing application development systems beyond their capabilities. Programmers at AMAS and its contractors have developed over twenty applications using AIE. Our initial experience has been very positive. AIE extends an object-oriented programming lan… more
Date: February 27, 1992
Creator: Fuja, R.S. & Widing, M.A.
open access

The design of the AIE: An object-oriented application development system

Description: Three years ago, in response to our challenging development context, the Advanced Modeling and Analysis Section designed and implemented an object-oriented environment -- the Application Interface Engine (AIE). Our prototyping requirements forced existing application development systems beyond their capabilities. Programmers at AMAS and its contractors have developed over twenty applications using AIE. Our initial experience has been very positive. AIE extends an object-oriented programming lan… more
Date: February 27, 1992
Creator: Fuja, R. S. & Widing, M. A.
open access

Determining a cost/effectiveness/safety tradeoff methodology for strategic nuclear warheads

Description: Department of Energy national laboratories are charged with anticipating with a long leadtime which technologies for nuclear warheads should be developed. The Safe Warhead System Study was constituted to provide Lawrence Livermore National Laboratory management with information and suggestions for making such decisions for enhanced safety warheads. The Minuteman III replacement warheads were analyzed as a test case and that information was used to identify and describe the dominant issues, to d… more
Date: April 27, 1992
Creator: Erickson, S. A. Jr. & Hall, C. H.
open access

Development of advanced NO sub x control concepts for coal-fired utility boilers

Description: CombiNO{sub x} is an integration of three technologies: modified reburning, promoted selective noncatalytic reduction (SNCR) and methanol injection. These technologies are combined to achieve high levels of NO{sub x}, emission reduction from coal fired power plants equipped with SO{sub 2} scrubbers. The first two steps, modified reburning and promoted SNCR are linked. It has been shown that, performance of the SNCR agent is dependent upon local oxidation of CO. Reburning is used to generate the… more
Date: May 27, 1992
Creator: Evans, A.; Newhall, J.; England, G. & Seeker, W. R.
open access

Development of advanced NO{sub x} control concepts for coal-fired utility boilers. Quarterly technical progress report No. 5, October 1--December 31, 1991

Description: CombiNO{sub x} is an integration of three technologies: modified reburning, promoted selective noncatalytic reduction (SNCR) and methanol injection. These technologies are combined to achieve high levels of NO{sub x}, emission reduction from coal fired power plants equipped with SO{sub 2} scrubbers. The first two steps, modified reburning and promoted SNCR are linked. It has been shown that, performance of the SNCR agent is dependent upon local oxidation of CO. Reburning is used to generate the… more
Date: May 27, 1992
Creator: Evans, A.; Newhall, J.; England, G. & Seeker, W. R.
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