2,486 Matching Results

Results open in a new window/tab.

Calculations of Emittance and Damping Time Effects in the SLC Damping Rings (open access)

Calculations of Emittance and Damping Time Effects in the SLC Damping Rings

In a recent NDR machine experiment the transverse emittance was studied as a function of store time and tune. To explain the observed transverse emittance damping time constants, the magnetic measurement data of the longitudinal field of the bending magnets had to be taken into account. The variation of the transverse emittances with tune due to misalignments and the associated anomalous dispersion is studied as well as the effect of synchrobetatron coupling due to dispersion in the RF cavities.
Date: March 1, 1992
Creator: Limberg, T.; Moshammer, H.; Raubenheimer, T.; Spencer, J. & Siemann, R.
Object Type: Article
System: The UNT Digital Library
Calculations of Emittance and Damping Time Effects in the SLC Damping Rings (open access)

Calculations of Emittance and Damping Time Effects in the SLC Damping Rings

In a recent NDR machine experiment the transverse emittance was studied as a function of store time and tune. To explain the observed transverse emittance damping time constants, the magnetic measurement data of the longitudinal field of the bending magnets had to be taken into account. The variation of the transverse emittances with tune due to misalignments and the associated anomalous dispersion is studied as well as the effect of synchrobetatron coupling due to dispersion in the RF cavities.
Date: March 1, 1992
Creator: Limberg, T.; Moshammer, H.; Raubenheimer, T.; Spencer, J. & Siemann, R.
Object Type: Article
System: The UNT Digital Library
Center for X-Ray Optics, 1991 (open access)

Center for X-Ray Optics, 1991

This report discusses: Soft-X-Ray imaging with zone-plate lenses; multilayer reflective optics; and spectroscopy with x-rays.
Date: March 1, 1992
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Center for X-Ray Optics, 1991 (open access)

Center for X-Ray Optics, 1991

This report discusses: Soft-X-Ray imaging with zone-plate lenses; multilayer reflective optics; and spectroscopy with x-rays.
Date: March 1, 1992
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Central Station DHC Phase 1 feasibility (open access)

Central Station DHC Phase 1 feasibility

This project assisted a private real estate developer in technically assessing the feasibility of integrating a central DHC system into a proposed 72 acre area mixed-use Planned Development (Central Station) just south of the Chicago Central Business District (Loop). The technical assessment concluded that a district heating and cooling system for Central Station will be feasible, provided that a major anchor load can be connected to the system. The system conceived for the site employs a modular approach that adjusts production capacity to actual load growth. The design concept includes gas-fired boilers for heating, gas turbine driven chillers for base loading, electric motor driven chillers for peaking, steam turbines for peak power and back pressure operation, and chilled water storage. Energy will be supplied to the users in the form of steam or low temperature hot water for heating, and low temperature chilled water for cooling.
Date: March 1, 1992
Creator: Henderson, H. L.
Object Type: Report
System: The UNT Digital Library
Central Station DHC Phase 1 feasibility (open access)

Central Station DHC Phase 1 feasibility

This project assisted a private real estate developer in technically assessing the feasibility of integrating a central DHC system into a proposed 72 acre area mixed-use Planned Development (Central Station) just south of the Chicago Central Business District (Loop). The technical assessment concluded that a district heating and cooling system for Central Station will be feasible, provided that a major anchor load can be connected to the system. The system conceived for the site employs a modular approach that adjusts production capacity to actual load growth. The design concept includes gas-fired boilers for heating, gas turbine driven chillers for base loading, electric motor driven chillers for peaking, steam turbines for peak power and back pressure operation, and chilled water storage. Energy will be supplied to the users in the form of steam or low temperature hot water for heating, and low temperature chilled water for cooling.
Date: March 1, 1992
Creator: Henderson, H.L.
Object Type: Report
System: The UNT Digital Library
Ceramic Technology Project (open access)

Ceramic Technology Project

The Ceramic Technology Project was developed by the USDOE Office of Transportation Systems (OTS) in Conservation and Renewable Energy. This project, part of the OTS's Materials Development Program, was developed to meet the ceramic technology requirements of the OTS's automotive technology programs. Significant accomplishments in fabricating ceramic components for the USDOE and NASA advanced heat engine programs have provided evidence that the operation of ceramic parts in high-temperature engine environments is feasible. These programs have also demonstrated that additional research is needed in materials and processing development, design methodology, and data base and life prediction before industry will have a sufficient technology base from which to produce reliable cost-effective ceramic engine components commercially. A five-year project plan was developed with extensive input from private industry. In July 1990 the original plan was updated through the estimated completion of development in 1993. The objective is to develop the industrial technology base required for reliable ceramics for application in advanced automotive heat engines. The project approach includes determining the mechanisms controlling reliability, improving processes for fabricating existing ceramics, developing new materials with increased reliability, and testing these materials in simulated engine environments to confirm reliability. Although this is a generic materials project, …
Date: March 1, 1992
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Ceramic Technology Project. Semiannual progress report, April 1991--September 1991 (open access)

Ceramic Technology Project. Semiannual progress report, April 1991--September 1991

The Ceramic Technology Project was developed by the USDOE Office of Transportation Systems (OTS) in Conservation and Renewable Energy. This project, part of the OTS`s Materials Development Program, was developed to meet the ceramic technology requirements of the OTS`s automotive technology programs. Significant accomplishments in fabricating ceramic components for the USDOE and NASA advanced heat engine programs have provided evidence that the operation of ceramic parts in high-temperature engine environments is feasible. These programs have also demonstrated that additional research is needed in materials and processing development, design methodology, and data base and life prediction before industry will have a sufficient technology base from which to produce reliable cost-effective ceramic engine components commercially. A five-year project plan was developed with extensive input from private industry. In July 1990 the original plan was updated through the estimated completion of development in 1993. The objective is to develop the industrial technology base required for reliable ceramics for application in advanced automotive heat engines. The project approach includes determining the mechanisms controlling reliability, improving processes for fabricating existing ceramics, developing new materials with increased reliability, and testing these materials in simulated engine environments to confirm reliability. Although this is a generic materials project, …
Date: March 1, 1992
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Cesium in the Savannah River Site environment (open access)

Cesium in the Savannah River Site environment

Cesium in the Savannah River Site Environment is published as a part of the Radiological Assessment Program (RAP). It is the fourth in a series of eight documents on individual radioisotopes released to the environment as a result of Savannah River Site (SRS) operations. The earlier documents describe the environmental consequences of tritium, iodine, and uranium. Documents on plutonium, strontium, carbon, and technetium will be published in the future. These are dynamic documents and current plans call for revising and updating each one on a two-year schedule.Radiocesium exists in the environment as a result of above-ground nuclear weapons tests, the Chernobyl accident, the destruction of satellite Cosmos 954, small releases from reactors and reprocessing plants, and the operation of industrial, medical, and educational facilities. Radiocesium has been produced at SRS during the operation of five production reactors. Several hundred curies of [sup 137]Cs was released into streams in the late 50s and 60s from leaking fuel elements. Smaller quantities were released from the fuel reprocessing operations. About 1400 Ci of [sup 137]Cs was released to seepage basins where it was tightly bound by clay in the soil. A much smaller quantity, about four Ci. was released to the atmosphere. Radiocesium …
Date: March 1, 1992
Creator: Carlton, W. H.; Bauer, L. R.; Evans, A. G.; Geary, L. A.; Murphy, C. E. Jr.; Pinder, J. E. et al.
Object Type: Report
System: The UNT Digital Library
Cesium in the Savannah River Site environment (open access)

Cesium in the Savannah River Site environment

Cesium in the Savannah River Site Environment is published as a part of the Radiological Assessment Program (RAP). It is the fourth in a series of eight documents on individual radioisotopes released to the environment as a result of Savannah River Site (SRS) operations. The earlier documents describe the environmental consequences of tritium, iodine, and uranium. Documents on plutonium, strontium, carbon, and technetium will be published in the future. These are dynamic documents and current plans call for revising and updating each one on a two-year schedule.Radiocesium exists in the environment as a result of above-ground nuclear weapons tests, the Chernobyl accident, the destruction of satellite Cosmos 954, small releases from reactors and reprocessing plants, and the operation of industrial, medical, and educational facilities. Radiocesium has been produced at SRS during the operation of five production reactors. Several hundred curies of {sup 137}Cs was released into streams in the late 50s and 60s from leaking fuel elements. Smaller quantities were released from the fuel reprocessing operations. About 1400 Ci of {sup 137}Cs was released to seepage basins where it was tightly bound by clay in the soil. A much smaller quantity, about four Ci. was released to the atmosphere. Radiocesium …
Date: March 1, 1992
Creator: Carlton, W. H.; Bauer, L. R.; Evans, A. G.; Geary, L. A.; Murphy, C. E. Jr.; Pinder, J. E. et al.
Object Type: Report
System: The UNT Digital Library
Characteristics of federal grant-in-aid programs to state and local governments : grants funded FY 1991 (open access)

Characteristics of federal grant-in-aid programs to state and local governments : grants funded FY 1991

The ACIR Library is composed of publications that study the interactions between different levels of government. This document addresses characteristics of federal grant-in-aid programs to state and local governments.
Date: March 1992
Creator: United States. Advisory Commission on Intergovernmental Relations.
Object Type: Book
System: The UNT Digital Library
Chemical changes associated with zeolitization of the tuffaceous beds of Calico Hills at Yucca Mountain, Nevada (open access)

Chemical changes associated with zeolitization of the tuffaceous beds of Calico Hills at Yucca Mountain, Nevada

The chemistry of the tuffaceous beds of Calico Hills was examined in samples collected over a 100{sup 2} km area south of the Timber Mountain-Oasis Valley caldera complex to determine regional geochemical patterns during zeolitization. Samples of 58 vitric and zeolitic tuffs were analyzed for 48 elements by a combination of x-ray fluorescence, atomic absorption spectrophotometry, and neutron activation analysis. Major and trace element concentrations for zeolitic tuffs vary significantly from those for vitric tuffs. Complex, geographically-controlled patterns of elemental enrichment and depletion in the zeolitic tuffs are found for Na, K, Ca, Mg, U, Rb, Sr, Ba and Cs. Vitric and zeolitic tuffs generally have the same SiO{sub 2} contents on an anhydrous basis, but minor net silica gain or loss has occurred in some samples. Zeolitic tuffs from the northern part of the study area, adjacent to the caldera complex, are notably K-rich and Na- and U-poor compared to zeolitic tuffs to the south. The compositions of the K-rich zeolitic tuffs are similar to those found in other areas of the western US where volcanic rocks are affected by potassium metasomatism. Alteration of vitric tuffs took place in an open chemical system and geographic control of major element …
Date: March 1, 1992
Creator: Broxton, D. E.
Object Type: Article
System: The UNT Digital Library
Chemical reactivity of potential ferrocyanide precipitates in Hanford tanks with nitrates and nitrites (open access)

Chemical reactivity of potential ferrocyanide precipitates in Hanford tanks with nitrates and nitrites

Ferrocyanide-bearing wastes were produced at the Hanford Site during the 1950s. Safe storage of these wastes has recently drawn increased attention. As a result of these concerns, the Pacific Northwest Laboratory was chartered to investigate the chemical reactivity and explosivity of the ferrocyanide bearing wastes. WE have investigated the thermal sensitivity of synthetic wastes and ferrocyanides and observed oxidation at 130{degrees}C and explosions down to 295{degrees}C. Coupled with thermodynamic calculations, these thermal studies have also shown a dependence of the reactivity on the synthetic waste composition, which is dependent on the solids settling behavior.
Date: March 1, 1992
Creator: Scheele, R. D.; Tingey, J. M.; Lilga, M. A.; Burger, L. L. & Hallen, R. T.
Object Type: Article
System: The UNT Digital Library
Chemical reactivity of potential ferrocyanide precipitates in Hanford tanks with nitrates and nitrites (open access)

Chemical reactivity of potential ferrocyanide precipitates in Hanford tanks with nitrates and nitrites

Ferrocyanide-bearing wastes were produced at the Hanford Site during the 1950s. Safe storage of these wastes has recently drawn increased attention. As a result of these concerns, the Pacific Northwest Laboratory was chartered to investigate the chemical reactivity and explosivity of the ferrocyanide bearing wastes. WE have investigated the thermal sensitivity of synthetic wastes and ferrocyanides and observed oxidation at 130{degrees}C and explosions down to 295{degrees}C. Coupled with thermodynamic calculations, these thermal studies have also shown a dependence of the reactivity on the synthetic waste composition, which is dependent on the solids settling behavior.
Date: March 1, 1992
Creator: Scheele, R. D.; Tingey, J. M.; Lilga, M. A.; Burger, L. L. & Hallen, R. T.
Object Type: Article
System: The UNT Digital Library
Chemical Technology Division, Annual technical report, 1991 (open access)

Chemical Technology Division, Annual technical report, 1991

Highlights of the Chemical Technology (CMT) Division's activities during 1991 are presented. In this period, CMT conducted research and development in the following areas: (1) electrochemical technology, including advanced batteries and fuel cells; (2) technology for fluidized-bed combustion and coal-fired magnetohydrodynamics; (3) methods for treatment of hazardous and mixed hazardous/radioactive waste; (4) the reaction of nuclear waste glass and spent fuel under conditions expected for an unsaturated repository; (5) processes for separating and recovering transuranic elements from nuclear waste streams; (6) recovery processes for discharged fuel and the uranium blanket in the Integral Fast Reactor (IFR); (7) processes for removal of actinides in spent fuel from commercial water-cooled nuclear reactors and burnup in IFRs; and (8) physical chemistry of selected materials in environments simulating those of fission and fusion energy systems. The Division also conducts basic research in catalytic chemistry associated with molecular energy resources; chemistry of superconducting oxides and other materials of interest with technological application; interfacial processes of importance to corrosion science, catalysis, and high-temperature superconductivity; and the geochemical processes involved in water-rock interactions occurring in active hydrothermal systems. In addition, the Analytical Chemistry Laboratory in CMT provides a broad range of analytical chemistry support services to the …
Date: March 1, 1992
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Chemical Technology Division, Annual technical report, 1991 (open access)

Chemical Technology Division, Annual technical report, 1991

Highlights of the Chemical Technology (CMT) Division`s activities during 1991 are presented. In this period, CMT conducted research and development in the following areas: (1) electrochemical technology, including advanced batteries and fuel cells; (2) technology for fluidized-bed combustion and coal-fired magnetohydrodynamics; (3) methods for treatment of hazardous and mixed hazardous/radioactive waste; (4) the reaction of nuclear waste glass and spent fuel under conditions expected for an unsaturated repository; (5) processes for separating and recovering transuranic elements from nuclear waste streams; (6) recovery processes for discharged fuel and the uranium blanket in the Integral Fast Reactor (IFR); (7) processes for removal of actinides in spent fuel from commercial water-cooled nuclear reactors and burnup in IFRs; and (8) physical chemistry of selected materials in environments simulating those of fission and fusion energy systems. The Division also conducts basic research in catalytic chemistry associated with molecular energy resources; chemistry of superconducting oxides and other materials of interest with technological application; interfacial processes of importance to corrosion science, catalysis, and high-temperature superconductivity; and the geochemical processes involved in water-rock interactions occurring in active hydrothermal systems. In addition, the Analytical Chemistry Laboratory in CMT provides a broad range of analytical chemistry support services to the …
Date: March 1, 1992
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Chemical Technology Division Annual Technical Report: 1991 (open access)

Chemical Technology Division Annual Technical Report: 1991

Annual report of the Argonne National Laboratory Chemical Technology Division (CMT) discussing the group's activities during 1991. These included electrochemical technology; fossil fuel research; hazardous waste research; nuclear waste programs; separation science and technology; integral fast reactor pyrochemical processes; actinite recovery; applied physical chemistry; basic chemistry research; analytical chemistry; research and development; and computer applications.
Date: March 1992
Creator: Argonne National Laboratory. Chemical Technology Division.
Object Type: Report
System: The UNT Digital Library
Chemisorption and catalytic reactivity of cobalt and sulfur monolayers on ordered molybdenum surfaces (open access)

Chemisorption and catalytic reactivity of cobalt and sulfur monolayers on ordered molybdenum surfaces

Complex Co/Mo sulfide catalysts are modelled by the chemisorption of layers on Mo single crystal surfaces. Growth and structure of overlayers on flat, stepped and kinked surfaces were investigated. Growth of Co overlayers on clean and S covered Mo surfaces was studied using AES and CO chemisorption; results reveal that Co grows as a flat monolayer on clean Mo surfaces. Co multilayers then form 3-D islands. When Co is deposited on S covered surfaces, the S overlayer migrates to the top; this topmost overlayer reduces CO adsorption capacity. While growth mode of Co overlayers are similar on flat and stepped surfaces, the number and type of ordered Co and S structures on flat and stepped surfaces are different. In the case of Co, an ordered (3 {times} 1) structure is formed on Mo(910) and (28,4,1) surfaces; this structure does not develop on clean (100) surface. Only one of two possible (3 {times} 1) Co domains are formed on Mo(910) and Mo(28,4,1) surfaces. These domains have one side of (3 {times} 1) unit cell parallel to the step edges, suggesting that Co adsorbs at the step edges. The (3 {times} 1) structure does not form on Mo(911) surface, indicating that step …
Date: March 1, 1992
Creator: Knight, C. C.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Chemisorption and catalytic reactivity of cobalt and sulfur monolayers on ordered molybdenum surfaces (open access)

Chemisorption and catalytic reactivity of cobalt and sulfur monolayers on ordered molybdenum surfaces

Complex Co/Mo sulfide catalysts are modelled by the chemisorption of layers on Mo single crystal surfaces. Growth and structure of overlayers on flat, stepped and kinked surfaces were investigated. Growth of Co overlayers on clean and S covered Mo surfaces was studied using AES and CO chemisorption; results reveal that Co grows as a flat monolayer on clean Mo surfaces. Co multilayers then form 3-D islands. When Co is deposited on S covered surfaces, the S overlayer migrates to the top; this topmost overlayer reduces CO adsorption capacity. While growth mode of Co overlayers are similar on flat and stepped surfaces, the number and type of ordered Co and S structures on flat and stepped surfaces are different. In the case of Co, an ordered (3 {times} 1) structure is formed on Mo(910) and (28,4,1) surfaces; this structure does not develop on clean (100) surface. Only one of two possible (3 {times} 1) Co domains are formed on Mo(910) and Mo(28,4,1) surfaces. These domains have one side of (3 {times} 1) unit cell parallel to the step edges, suggesting that Co adsorbs at the step edges. The (3 {times} 1) structure does not form on Mo(911) surface, indicating that step …
Date: March 1, 1992
Creator: Knight, C. C.
Object Type: Report
System: The UNT Digital Library
Chickasha Daily Express (Chickasha, Okla.), Vol. 100, No. 301, Ed. 1 Sunday, March 1, 1992 (open access)

Chickasha Daily Express (Chickasha, Okla.), Vol. 100, No. 301, Ed. 1 Sunday, March 1, 1992

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: March 1, 1992
Creator: Plummer, George
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Christian Chronicle (Oklahoma City, Okla.), Vol. 49, No. 3, Ed. 1 Sunday, March 1, 1992 (open access)

The Christian Chronicle (Oklahoma City, Okla.), Vol. 49, No. 3, Ed. 1 Sunday, March 1, 1992

Monthly newspaper from Oklahoma City, Oklahoma that includes news and information about the Churches of Christ along with advertising.
Date: March 1, 1992
Creator: Norton, Howard W. & Shipp, Glover
Object Type: Newspaper
System: The Portal to Texas History
Church & Synagogue Libraries, Volume 25, Number 5, March/April 1992 (open access)

Church & Synagogue Libraries, Volume 25, Number 5, March/April 1992

Bimonthly publication of the Church and Synagogue Library Association, containing news and events related to the organization and its members, reviews of books and other materials, and stories of interest to the management of congregational libraries.
Date: March 1992
Creator: Church and Synagogue Library Association
Object Type: Journal/Magazine/Newsletter
System: The UNT Digital Library
Clean Water Act (Section 404) and Rivers and Harbors Act (Sections 9 and 10) (open access)

Clean Water Act (Section 404) and Rivers and Harbors Act (Sections 9 and 10)

This Reference Book contains a current copy of the Clean Water Act (Section 404) and the Rivers and Harbors Act (Sections 9 and 10) and those regulations that implement those sections of the statutes and appear to be most relevant to DOE activities. The document is provided to DOE and contractor staff for informational purposes only and should not be interpreted as legal guidance. Updates that include important new requirements will be provided periodically. Questions concerning this Reference Book may be directed to Mark Petts, IH-231 (FTS 896-2609 or Commercial 202/586-2609).
Date: March 1, 1992
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Clean Water Act (Section 404) and Rivers and Harbors Act (Sections 9 and 10). Environmental Guidance Program Reference Book, Revision 4 (open access)

Clean Water Act (Section 404) and Rivers and Harbors Act (Sections 9 and 10). Environmental Guidance Program Reference Book, Revision 4

This Reference Book contains a current copy of the Clean Water Act (Section 404) and the Rivers and Harbors Act (Sections 9 and 10) and those regulations that implement those sections of the statutes and appear to be most relevant to DOE activities. The document is provided to DOE and contractor staff for informational purposes only and should not be interpreted as legal guidance. Updates that include important new requirements will be provided periodically. Questions concerning this Reference Book may be directed to Mark Petts, IH-231 (FTS 896-2609 or Commercial 202/586-2609).
Date: March 1, 1992
Creator: unknown
Object Type: Report
System: The UNT Digital Library