Aerogels for microelectronic applications: Fast, inexpensive, and light as air (open access)

Aerogels for microelectronic applications: Fast, inexpensive, and light as air

Silica aerogel consists of bonded silicon and oxygen joined into log strands, which are randomly linked together with pockets of air between them. Discovered in the 1930s, the material was thought to have little use outside of theoretical science. However, with the advent of greatly improved processing techniques, such as those developed at Lawrence Livermore National Laboratory, aerogels are on the verge of commercialization. This document describes the need for aerogels in the high-speed microelectronics industry, and state of the art processing techniques. Collaboration is welcomed in the endeavor.
Date: March 25, 1993
Creator: Contolini, R. J.; Hrubesh, L. W. & Bernhardt, A. F.
Object Type: Article
System: The UNT Digital Library
Analysis of offsite emergency planning zones (EPZs) for the Rocky Flats Plant. Phase 3, Sitewide spectrum-of-accidents and bounding EPZ analysis (open access)

Analysis of offsite emergency planning zones (EPZs) for the Rocky Flats Plant. Phase 3, Sitewide spectrum-of-accidents and bounding EPZ analysis

This Charter provides the basis for a cooperative, interagency effort to conduct Phase III of the ``Analysis of Offsite Emergency Planning Zones (EPZs) for the Rocky Flats Plant`` Project. The purpose of this Charter is to define the Project and establish an Oversight Committee management structure together with responsibilities and commitments. This Charter establishes a commitment on the part of the signing agencies to participate in a Phase III EPZ analysis to refine existing EPZs for the Rocky Flats Plant. These agencies agree to commit resources to this Project to fulfill their identified roles. The specific types and levels of resources committed by each agency will be determined as part of the Project planning process. This Charter does not commit any agency to any specific level of effort or resources. It does, however, commit these agencies to support the Phase III analysis to completion.
Date: October 25, 1993
Creator: Petrocchi, A. J. & Smith, M. L.
Object Type: Report
System: The UNT Digital Library
Annual report to Congress 1992 (open access)

Annual report to Congress 1992

By Congress in 1977 as an independent entity within the Department of Energy, the Energy Information Administration (EIA) is the principal and authoritative source of comprehensive energy data for the Congress, the Federal Government, the States, and the public. During 1992, EIA provided information and analysis in response to many energy-related issues and events, including Hurricane Andrew. In addition, EIA made substantial strides in a number of critical special projects, most notably development of the National Energy Modeling System, preparation of National Petroleum Council studies on petroleum refining and natural gas, and establishment of oxygenate data program mandated by the Clean Air Act Amendments of 1990. EIA also took advantage of new opportunities for international consultations and energy information exchanges. This report to Congress contains energy-related information on the following: petroleum; natural gas; integrated analysis and forecasting; electricity; coal; energy markets and end use, nuclear, statistical standards, and information services. The appendices include: data collection surveys of the Energy Information Administration; Analytic models of the Energy Information Administration; EIA publication -- EIA products available on diskette; and Major laws affecting EIA, 1974-1992.
Date: March 25, 1993
Creator: unknown
Object Type: Report
System: The UNT Digital Library
An assessment of testing requirement impacts on nuclear thermal propulsion ground test facility design (open access)

An assessment of testing requirement impacts on nuclear thermal propulsion ground test facility design

Programs to develop solid core nuclear thermal propulsion (NTP) systems have been under way at the Department of Defense (DoD), the National Aeronautics and Space Administration (NASA), and the Department of Energy (DOE). These programs have recognized the need for a new ground test facility to support development of NTP systems. However, the different military and civilian applications have led to different ground test facility requirements. The Department of Energy (DOE) in its role as landlord and operator of the proposed research reactor test facilities has initiated an effort to explore opportunities for a common ground test facility to meet both DoD and NASA needs. The baseline design and operating limits of the proposed DoD NTP ground test facility are described. The NASA ground test facility requirements are reviewed and their potential impact on the DoD facility baseline is discussed.
Date: October 25, 1993
Creator: Shipers, L. R.; Ottinger, C. A. & Sanchez, L. C.
Object Type: Article
System: The UNT Digital Library
Balanced Dairying: Economics, Volume 13, Number 1, January 1993 (open access)

Balanced Dairying: Economics, Volume 13, Number 1, January 1993

Newsletter of the Texas Agricultural Extension Service discussing topics related to economic aspects of raising dairy cows, dairy production, and managing dairy operations.
Date: January 25, 1993
Creator: Texas Agricultural Extension Service
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Battery testing at Argonne National Laboratory (open access)

Battery testing at Argonne National Laboratory

Argonne National Laboratory`s Analysis & Diagnostic Laboratory (ADL) tests advanced batteries under simulated electric and hybrid vehicle operating conditions. The ADL facilities also include a post-test analysis laboratory to determine, in a protected atmosphere if needed, component compositional changes and failure mechanisms. The ADL provides a common basis for battery performance characterization and life evaluations with unbiased application of tests and analyses. The battery evaluations and post-test examinations help identify factors that limit system performance and life, and the most-promising R&D approaches for overcoming these limitations. Since 1991, performance characterizations and/or life evaluations have been conducted on eight battery technologies (Na/S, Li/S, Zn/Br, Ni/MH, Ni/Zn, Ni/Cd, Ni/Fe, and lead-acid). These evaluations were performed for the Department of Energy`s. Office of Transportation Technologies, Electric and Hybrid Propulsion Division (DOE/OTT/EHP), and Electric Power Research Institute (EPRI) Transportation Program. The results obtained are discussed.
Date: March 25, 1993
Creator: DeLuca, W. H.; Gillie, K. R.; Kulaga, J. E.; Smaga, J. A.; Tummillo, A. F. & Webster, C. E.
Object Type: Article
System: The UNT Digital Library
Battery testing at Argonne National Laboratory (open access)

Battery testing at Argonne National Laboratory

Argonne National Laboratory's Analysis Diagnostic Laboratory (ADL) tests advanced batteries under simulated electric and hybrid vehicle operating conditions. The ADL facilities also include a post-test analysis laboratory to determine, in a protected atmosphere if needed, component compositional changes and failure mechanisms. The ADL provides a common basis for battery performance characterization and life evaluations with unbiased application of tests and analyses. The battery evaluations and post-test examinations help identify factors that limit system performance and life, and the most-promising R D approaches for overcoming these limitations. Since 1991, performance characterizations and/or life evaluations have been conducted on eight battery technologies (Na/S, Li/S, Zn/Br, Ni/MH, Ni/Zn, Ni/Cd, Ni/Fe, and lead-acid). These evaluations were performed for the Department of Energy's. Office of Transportation Technologies, Electric and Hybrid Propulsion Division (DOE/OTT/EHP), and Electric Power Research Institute (EPRI) Transportation Program. The results obtained are discussed.
Date: March 25, 1993
Creator: DeLuca, W. H.; Gillie, K. R.; Kulaga, J. E.; Smaga, J. A.; Tummillo, A. F. & Webster, C. E.
Object Type: Article
System: The UNT Digital Library
Beam transfer at E0: An overview (open access)

Beam transfer at E0: An overview

The helical orbits in the Tevatron necessitated changes in the beam transfer operation between the Main Ring and the Tevatron. This document is intended to present an overview of the beam transfer with an emphasis on the recent changes. It will also serve as a bibliography for the other documents that exist on Tevatron injection.
Date: June 25, 1993
Creator: Saritepe, S. & Annala, G.
Object Type: Report
System: The UNT Digital Library
Bioconversion of coal derived synthesis gas to liquid fuels. Final quarterly technical progress report, July 1, 1993--September 30, 1993 (open access)

Bioconversion of coal derived synthesis gas to liquid fuels. Final quarterly technical progress report, July 1, 1993--September 30, 1993

The overall objective of the project is to develop an integrated two stage fermentation process for conversion of coal-derived synthesis gas to a mixture of alcohols. This is achieved in two steps. In the first step, Butyribacterium methylotrophicum converts carbon monoxide (CO) to butyric and acetic acids. Subsequent fermentation of the acids by Clostridium acetobutylicum leads to the production of butanol and ethanol. The tasks for this quarter were: (1) development/isolation of superior strains for fermentation of syngas, (2) optimization of process conditions for fermentation of syngas, (3) evaluation of bioreactor configuration for improved mass transfer of syngas, (4) development of a membrane-based pervaporation system, (5) optimization of process conditions for reducing carbon and electron loss by H{sub 2}-CO{sub 2} fermentation, and (6) synthesis gas fermentation in single-stage by co-culture. Progress is reported in isolation of CO utilizing anaerobic strains; investigating the product profile for the fermentation of syngas by B. methylotrophicum; and determining the effect of carbon monoxide on growth of C. acetobutylicum.
Date: October 25, 1993
Creator: Jain, M. K.; Worden, R. M. & Grethlein, H.
Object Type: Report
System: The UNT Digital Library
Cable tracking system proposal (open access)

Cable tracking system proposal

The Experimental Facilities Division requires a labeling system to identify and catalog the instrumentation, control, and computer cables that will run throughout the building. Tom Sheridan from the MIS Group has already made some general suggestions about the information that could be included in an Oracle-based Cable Tracking System (E-mail text distributed by Gary Gunderson on the 27th of August). Glenn Decker`s LS Note No. 191 is also relevant to the subject since it addresses name assignment rules for the storage ring devices. The intent of this note is to recommend a mechanism for tracking wires/cables, with enough specifics, to which all groups in the Division would adhere when pulling cables. Because most cables will run between various beamline devices, hutch safety components, and equipment racks, any method of tracking cables is related to the Equipment Tracking System. That system has been developed by the APS Project personnel and is described in the APS Project Equipment Tracking System Guidelines (DRAFT). It can be adopted to XFD`s needs. Two essential features of the Cable Tracking System are: 1) Each cable shell have a unique Identifier, and 2) Cable label must contain information that is helpful during troubleshooting in the field. The …
Date: June 25, 1993
Creator: Friedman, N.
Object Type: Report
System: The UNT Digital Library
Chemical compatibility of DWPF canistered waste forms. Revision 1 (open access)

Chemical compatibility of DWPF canistered waste forms. Revision 1

The Waste Acceptance Preliminary Specifications (WAPS) require that the contents of the canistered waste form are compatible with one another and the stainless steel canister. The canistered waste form is a closed system comprised of a stainless steel vessel containing waste glass, air, and condensate. This system will experience a radiation field and an elevated temperature due to radionuclide decay. This report discusses possible chemical reactions, radiation interactions, and corrosive reactions within this system both under normal storage conditions and after exposure to temperatures up to the normal glass transition temperature, which for DWPF waste glass will be between 440 and 460{degrees}C. Specific conclusions regarding reactions and corrosion are provided. This document is based on the assumption that the period of interim storage prior to packaging at the federal repository may be as long as 50 years.
Date: June 25, 1993
Creator: Harbour, J. R.
Object Type: Report
System: The UNT Digital Library
Coherent multiple-foil x-ray transition radiation (open access)

Coherent multiple-foil x-ray transition radiation

Intense x-ray transition radiation can be generated when relativistic electrons pass through a multiple-foil target. When the foil spacing is periodic, the transition radiation can be spatially coherent with respect to the target period. The spatial coherence can be evident in the spectra and angular distributions of transition radiation from such targets. A series of experiments has measured coherent transition radiation distributions from multiple-foil targets (up to six foils) with spacings of 50 {mu}m and 100 {mu}m. The electron energy was about 75 MeV and the photon energies were about 200 eV. Agreement between calculation and experimental data is excellent.
Date: August 25, 1993
Creator: Moran, M. J.; Chang, B. & Schneider, M. B.
Object Type: Report
System: The UNT Digital Library
Corrosion fatigue of iron-chromium-nickel alloys: Fracture mechanics, microstructure and chemistry (open access)

Corrosion fatigue of iron-chromium-nickel alloys: Fracture mechanics, microstructure and chemistry

Phase transformation and cracking during RT aging of charged, high-purity Fe18Cr12Ni alloy and commerical 304 ss were examined; results show that [epsilon]* (hcp) hydride formed on Fe18Cr12Ni upon charging, and it decomposed rapidly to form first [epsilon] and then [alpha]' martensite. Morphology of fracture surfaces of Fe18Cr12Ni produced by corrosion fatigue in NaCl solutions and in hydrogen was found to be identical. Effort was made to examine the approaches and methodologies used in service life predictions and reliability analyses.
Date: January 25, 1993
Creator: Wei, R.P.
Object Type: Report
System: The UNT Digital Library
Corrosion fatigue of iron-chromium-nickel alloys: Fracture mechanics, microstructure and chemistry. Progress report, January 1, 1992--December 31, 1992 (open access)

Corrosion fatigue of iron-chromium-nickel alloys: Fracture mechanics, microstructure and chemistry. Progress report, January 1, 1992--December 31, 1992

Phase transformation and cracking during RT aging of charged, high-purity Fe18Cr12Ni alloy and commerical 304 ss were examined; results show that {epsilon}* (hcp) hydride formed on Fe18Cr12Ni upon charging, and it decomposed rapidly to form first {epsilon} and then {alpha}` martensite. Morphology of fracture surfaces of Fe18Cr12Ni produced by corrosion fatigue in NaCl solutions and in hydrogen was found to be identical. Effort was made to examine the approaches and methodologies used in service life predictions and reliability analyses.
Date: January 25, 1993
Creator: Wei, R. P.
Object Type: Report
System: The UNT Digital Library
Cratering rates from lunar xenospherules (open access)

Cratering rates from lunar xenospherules

The goal of this project is to obtain the time history of impacts on the moon, with emphasis on recent impacts. In particular, the project could prove (or disprove) the existence of comet sores and provide the dates when they occurred.
Date: May 25, 1993
Creator: Muller, R. A.
Object Type: Report
System: The UNT Digital Library
D0 Solenoid Upgrade Project: Pressure Ratings for Some Chimney and Control Dewar Componenets (open access)

D0 Solenoid Upgrade Project: Pressure Ratings for Some Chimney and Control Dewar Componenets

Pressure rating calculations were done for some of the chimney and control dewar components. This engineering note documents these calculations. The table below summarizes the components looked at, and what pressure rating are. The raw engineering calculations for each of the components is given.
Date: May 25, 1993
Creator: Rucinski, R.
Object Type: Report
System: The UNT Digital Library
Development of a membrane-based process for the treatment of oily waste waters. [Quarterly] report, December 5, 1992--March 4, 1993 (open access)

Development of a membrane-based process for the treatment of oily waste waters. [Quarterly] report, December 5, 1992--March 4, 1993

This is the fourth quarterly report covering December 5, 1992, to March 4, 1993. The overall goal of this program is to develop a system based on reverse osmosis (RO) membranes that can treat oily water economically. This system will be based on the use of thin-film-composite (TFC) membranes that consist of a selective coating placed on a solvent-resistant hollow-fiber support. For this program, we plan to develop solvent-resistant hollow-fiber supports and coat them with a ``loose RO`` coating. We developed the coating, which is designated TTM, in previous work for the treatment of oily waste waters. During this reporting period, work was focused on (1)fabrication and testing of large-scale hollow-fiber modules, (2)performing preliminary field tests using these modules, and (3)arranging for a demonstration test of this technology. Our results show that the solvent-resistant TTM hollow-fiber modules perform well when operated on oily waters. During the next reporting period, we plan to complete arrangements for the demonstration test of this technology. This field test, preparation of the final report, and technology transfer are the only tasks remaining in this program.
Date: March 25, 1993
Creator: McCray, S. B.
Object Type: Report
System: The UNT Digital Library
Development of an extraction process for removal of heteroatoms from coal liquids. Technical progress report No. 6, 1 July, 1993--30 September, 1993 (open access)

Development of an extraction process for removal of heteroatoms from coal liquids. Technical progress report No. 6, 1 July, 1993--30 September, 1993

The objective of this contract is to develop a CO{sub 2}-water extraction process for the removal of heteroatoms from coal-derived naphtha, diesel, and jet fuel. Coal liquids are characterized by their high content of heteroatoms. Conventional techniques could remove the heteroatoms from coal liquids, but at a high hydrogen consumption and at a high cost. A successful development of the CO{sub 2}-water extraction process will increase the environmental acceptability of coal liquids and reduce the H{sub 2} requirements for the upgrading of coal liquids. This report describes activities under two tasks: Task 2.0, Feed procurement and Task 3.0, Process variable screening studies.
Date: October 25, 1993
Creator: Gala, H. B.
Object Type: Report
System: The UNT Digital Library
Effect of pretreating of host oil on coprocessing (open access)

Effect of pretreating of host oil on coprocessing

The principal objective of this research is to determine the role host petroleum-derived oils (1000[degrees]F+), as well as that of catalytically treated host oils, play when used as liquefaction solvents in coprocessing with coal. The host oils will be extensively characterized and then pretreated in a number of ways which involve catalytic reactions such as hydrogenation, hydrocracking, isomerization, and dehydrogenation. The pretreated oils win then be characterized. The effects of the host oil on coprocessing with coal win be compared to those obtained using catalytically modified heavy oils. When appropriate, model compounds will be used to study specific reactions brought about by the pretreatments. Highly dispersed iron catalysts modified by the addition of small amounts of other metals wig be used to modify the chemical composition of the host oils. Work continued on Task H during this quarter. In the first phase of this task, the test oil, an Amoco resid, is being treated with hydrogenation catalysts such as Mo(CO)[sub 6] and Fe[sub 2]O[sub 3]/SO[sub 4] to determine the conditions necessary to increase the hydrogen content from about 10.2 wt % to about 11.5 wt %. In the second phase, more severe hydrogenation/hydrorefining is being carried out to determine the …
Date: March 25, 1993
Creator: Wender, I. & Tierney, J.W.
Object Type: Report
System: The UNT Digital Library
Effect of pretreating of host oil on coprocessing (open access)

Effect of pretreating of host oil on coprocessing

The principal objective of this research is to determine the role host petroleum-derived oils (1000[degrees]F+), as well as that of catalytically treated host oils, play when used as liquefaction solvents in coprocessing with coal. The host oils will be extensively characterized and then pretreated in a number of ways which involve catalytic reactions such as hydrogenation, hydrocracking, isomerization, and dehydrogenation. The pretreated oils will then be characterized. The effects of the host oil on coprocessing with coal will be compared to those obtained using catalytically modified heavy oils. When appropriate, model compounds will be used to study specific reactions brought about by the pretreatments. Highly dispersed iron catalysts modified by the addition of small amounts of other metals will be used to modify the chemical composition of the host oils. To date, five different pretreatment reactions have been carried out on the Amoco oil. Table 1 list some properties of this oil. Details of the reaction conditions used are given in Table 2. An objective of the pretreatment reactions is to increase hydrogen content without too significant a breakdown (cracking) of the hydrocarbon structures. Severe cracking could produce a light hydrocarbon solvent which may not be suitable for coprocessing because …
Date: January 25, 1993
Creator: Wender, I. & Tierney, J.W.
Object Type: Report
System: The UNT Digital Library
Effect of pretreating of host oil on coprocessing. Quarterly progress report, July 1, 1992--September 30, 1992 (open access)

Effect of pretreating of host oil on coprocessing. Quarterly progress report, July 1, 1992--September 30, 1992

The principal objective of this research is to determine the role host petroleum-derived oils (1000{degrees}F+), as well as that of catalytically treated host oils, play when used as liquefaction solvents in coprocessing with coal. The host oils will be extensively characterized and then pretreated in a number of ways which involve catalytic reactions such as hydrogenation, hydrocracking, isomerization, and dehydrogenation. The pretreated oils will then be characterized. The effects of the host oil on coprocessing with coal will be compared to those obtained using catalytically modified heavy oils. When appropriate, model compounds will be used to study specific reactions brought about by the pretreatments. Highly dispersed iron catalysts modified by the addition of small amounts of other metals will be used to modify the chemical composition of the host oils. To date, five different pretreatment reactions have been carried out on the Amoco oil. Table 1 list some properties of this oil. Details of the reaction conditions used are given in Table 2. An objective of the pretreatment reactions is to increase hydrogen content without too significant a breakdown (cracking) of the hydrocarbon structures. Severe cracking could produce a light hydrocarbon solvent which may not be suitable for coprocessing because …
Date: January 25, 1993
Creator: Wender, I. & Tierney, J. W.
Object Type: Report
System: The UNT Digital Library
Effect of pretreating of host oil on coprocessing. Quarterly progress report, October 1, 1992--December 31, 1992 (open access)

Effect of pretreating of host oil on coprocessing. Quarterly progress report, October 1, 1992--December 31, 1992

The principal objective of this research is to determine the role host petroleum-derived oils (1000{degrees}F+), as well as that of catalytically treated host oils, play when used as liquefaction solvents in coprocessing with coal. The host oils will be extensively characterized and then pretreated in a number of ways which involve catalytic reactions such as hydrogenation, hydrocracking, isomerization, and dehydrogenation. The pretreated oils win then be characterized. The effects of the host oil on coprocessing with coal win be compared to those obtained using catalytically modified heavy oils. When appropriate, model compounds will be used to study specific reactions brought about by the pretreatments. Highly dispersed iron catalysts modified by the addition of small amounts of other metals wig be used to modify the chemical composition of the host oils. Work continued on Task H during this quarter. In the first phase of this task, the test oil, an Amoco resid, is being treated with hydrogenation catalysts such as Mo(CO){sub 6} and Fe{sub 2}O{sub 3}/SO{sub 4} to determine the conditions necessary to increase the hydrogen content from about 10.2 wt % to about 11.5 wt %. In the second phase, more severe hydrogenation/hydrorefining is being carried out to determine the …
Date: March 25, 1993
Creator: Wender, I. & Tierney, J. W.
Object Type: Report
System: The UNT Digital Library
The Effect of Prior Out-of-Plane Damage on the in-Plane Behavior of Unreinforced Masonry Infilled Frames (open access)

The Effect of Prior Out-of-Plane Damage on the in-Plane Behavior of Unreinforced Masonry Infilled Frames

In order to address the effect of prior out-of-plane damage on the in-plane behavior of unreinforced masonry infills, two full-scale (24 feet tall by 28 feet long) structural clay tile infills and one frame-only (no infilling) were constructed and tested. The infilled frame, consisting of two wide flange columns surrounded by masonry plasters and an eccentric wide flange purlin, was identical to many of the infills located at the Oak Ridge Y-12 Plant. The masonry infill was approximately 12.5 inches thick and was composed of individual four- and eight-inch hollow clay tile (HCT) units. One of the infill panels was tested out-of-plane by four quasi-static actuators -- two on each column. The test structure was deflected out-of-plane equally at all four actuator locations in order to simulate the computed deflection path of the top and bottom chords of a roof truss framing into the columns at these locations. Prior to the infill testing, a bare frame was loaded similarly in order to determine the behavior and stiffness contribution of the frame only. Following the out-of-plane test of the infilled panel, the structure was loaded in-plane to failure in order to ascertain residual strength. A second, identical infilled frame was then …
Date: August 25, 1993
Creator: Henderson, R. C.; Jones, W. D.; Burdette, E. G. & Porter, M. L.
Object Type: Article
System: The UNT Digital Library
Electric power monthly, May 1993 (open access)

Electric power monthly, May 1993

The Electric Power Monthly (EPM) is prepared by the Survey Management Division; Office of Coal, Nuclear, Electric and Alternate Fuels, Energy Information Administration (EIA), Department of Energy. This publication provides monthly statistics at the US, Census division, and State levels for net generation, fossil fuel consumption and stocks, quantity and quality of fossil fuels, cost of fossil fuels, electricity sales, revenue, and average revenue per kilowatthour of electricity sold. Data on net generation, fuel consumption, fuel stocks, quantity and cost of fossil fuels are also displayed for the North American Electric Reliability Council (NERC) regions.
Date: May 25, 1993
Creator: unknown
Object Type: Report
System: The UNT Digital Library