States

Direct conversion of methane to C sub 2 's and liquid fuels (open access)

Direct conversion of methane to C sub 2 's and liquid fuels

The objectives of the project are to discover and evaluate novel catalytic systems for the conversion of methane or by-product light hydrocarbon gases either indirectly (through intermediate light gases rich in C{sub 2}'s) or directly to liquid hydrocarbon fuels, and to evaluate, from an engineering perspective, different conceptualized schemes. The approach is to carry out catalyst testing on several specific classes of potential catalysts for the conversion of methane selectively to C{sub 2} products. The behavior of alkaline earth/metal oxide/halide catalysts containing strontium was found to be different from the behavior of catalysts containing barium. Two approaches were pursued to avoid the heterogeneous/homogeneous mechanism in order to achieve higher C{sub 2} selectivity/methane conversion combinations. One approach was to eliminate or minimize the typical gas phase combustion chemistry and make more of the reaction occur on the surface of the catalyst by using silver. Another approach was to change the gas phase chemistry to depart from the typical combustion reaction network by using vapor-phase catalysts. The layered perovskite K{sub 2}La{sub 2}Ti{sub 3}O{sub 10} was further studied. Modifications of process and catalyst variables for LaCaMnCoO{sub 6} catalysts resulted in catalysts with superior performance. Results obtained with a literature catalyst Na{sub 2}CO{sub 3}/Pr{sub …
Date: March 12, 1990
Creator: Warren, B. K.; Campbell, K. D.; Matherne, J. L. & Kinkade, N. E.
Object Type: Report
System: The UNT Digital Library
Texas Register, Volume 16, Number 19, Pages 1487-1520, March 12, 1991 (open access)

Texas Register, Volume 16, Number 19, Pages 1487-1520, March 12, 1991

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: March 12, 1991
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Hawaii Geothermal Project Environmental Impact Statement Scoping Meetings. Volume 5 (open access)

Hawaii Geothermal Project Environmental Impact Statement Scoping Meetings. Volume 5

None
Date: March 12, 1992
Creator: unknown
Object Type: Article
System: The UNT Digital Library
Hawaii Geothermal Project Environmental Impact Statement Scoping Meetings. Volume 6 (open access)

Hawaii Geothermal Project Environmental Impact Statement Scoping Meetings. Volume 6

None
Date: March 12, 1992
Creator: unknown
Object Type: Article
System: The UNT Digital Library
CAVEMAN: Configuration And VErsion MANagement. User`s guide, v2.1.2 (open access)

CAVEMAN: Configuration And VErsion MANagement. User`s guide, v2.1.2

The mission of the CAVEMAN project is to provide the tools for large code systems so that those who work on them can perform source control and configuration control on UNIX-based file servers, rather than the LC Crays. An outside product called cvs has been chosen as the underlying source control system. The initials stand for {open_quotes}Concurrent Versions System{close_quotes}. It is a freeware program that runs on most UNIX stations. To quote from the cvs man page: {open_quotes}cvs is a front end to the rcs revision control system which extends the notion of revision control from a collection of files in a single directory to a hierarchical collection of directories consisting of revision controlled files. These directories and files can be combined together to form a software release. cvs provides the functions necessary to manage these software releases and to control the concurrent editing of source files among multiple software developers.{close_quotes} While cvs may be run directly, there are several tasks in the LLNL environment that it seemed either safer or easier to automate. CAVEMAN provides the needed functionality, generally in the form of wrappers to cvs.
Date: March 12, 1993
Creator: Dyer, K. M.
Object Type: Report
System: The UNT Digital Library
Public census data on CD-ROM at Lawrence Berkeley Laboratory. Revision 4 (open access)

Public census data on CD-ROM at Lawrence Berkeley Laboratory. Revision 4

The Comprehensive Epidemiologic Data Resource (CEDR) and Populations at Risk to Environmental Pollution (PAREP) projects, of the Information and Computing sciences Division (ICSD) at Lawrence Berkeley Laboratory (LBL), are using public socioeconomic and geographic data files which are available to CEDR and PAREP collaborators via LBL`s computing network. At this time 89 CD-ROM diskettes (approximately 45 gigabytes) are on line via the Unix file server cedrcd.lbl.gov. Most of the files are from the US Bureau of the Census, and many of these pertain to the 1990 Census of Population and Housing. All the CD-ROM diskettes contain documentation in the form of ASCII text files. In addition, printed documentation for most files is available for inspection at University of California Data and Technical Assistance (UC DATA), tel. (510) 642-6571, or the UC Documents Library, tel. (510) 642-2569, both located on the UC Berkeley Campus. Many of the CD-ROM diskettes distributed by the Census Bureau contain software for PC compatible computers, for easily accessing the data. Shared access to the data is maintained through a collaboration among the CEDR and PAREP projects at LBL, and UC DATA, and the UC Documents Library. LBL is grateful to UC DATA and the UC Documents …
Date: March 12, 1993
Creator: Merrill, D. W.
Object Type: Report
System: The UNT Digital Library
Structural stability of 1100{degree}C heated Pd/k during absorption cycling in protium (open access)

Structural stability of 1100{degree}C heated Pd/k during absorption cycling in protium

Pd/k is a hydride forming packing material which is used in the Thermal Cycling Absorption Process (TCAP). Palladium is supported on kieselguhr to create a packing material which will provide adequate void space to prevent excessive pressure drops and flow restrictions. The use of unsupported palladium would result in blockage of columns and clogging of filters due to the small particle size of unsupported palladium hydride powder. During pilot scale demonstrations, it was noted that the Pd/k packing material had degraded causing severe flow restrictions within the TCAP column. A solution to the problem involved the heating of Pd/k at 1,110{degree}C to strengthen the packing material, and render it more resistant to breakdown. The 1, 100{degree}C heated Pd/k has been shown to be more resistant to mechanical breakdown than the Pd/k prior to heat treatment. Two primary modes of Pd/k particle degradation have been identified: mechanical breakdown caused by particle fluidization and degradation caused by absorption/desorption cycling. Absorption/desorption cycling causes the palladium particles within the packing to expanded and contract upon formation and decomposition of the hydride, respectively. This expansion and contraction causes large localized stresses within the packing material, which if these stresses can not be accommodated within the …
Date: March 12, 1993
Creator: Fisher, I. A.
Object Type: Report
System: The UNT Digital Library
Structural stability of 1100[degree]C heated Pd/k during absorption cycling in protium. [Palladium supported on kieselguhr] (open access)

Structural stability of 1100[degree]C heated Pd/k during absorption cycling in protium. [Palladium supported on kieselguhr]

Pd/k is a hydride forming packing material which is used in the Thermal Cycling Absorption Process (TCAP). Palladium is supported on kieselguhr to create a packing material which will provide adequate void space to prevent excessive pressure drops and flow restrictions. The use of unsupported palladium would result in blockage of columns and clogging of filters due to the small particle size of unsupported palladium hydride powder. During pilot scale demonstrations, it was noted that the Pd/k packing material had degraded causing severe flow restrictions within the TCAP column. A solution to the problem involved the heating of Pd/k at 1,110[degree]C to strengthen the packing material, and render it more resistant to breakdown. The 1, 100[degree]C heated Pd/k has been shown to be more resistant to mechanical breakdown than the Pd/k prior to heat treatment. Two primary modes of Pd/k particle degradation have been identified: mechanical breakdown caused by particle fluidization and degradation caused by absorption/desorption cycling. Absorption/desorption cycling causes the palladium particles within the packing to expanded and contract upon formation and decomposition of the hydride, respectively. This expansion and contraction causes large localized stresses within the packing material, which if these stresses can not be accommodated within the …
Date: March 12, 1993
Creator: Fisher, I. A.
Object Type: Report
System: The UNT Digital Library
Texas Attorney General Opinion: LO93-021 (open access)

Texas Attorney General Opinion: LO93-021

Letter opinion issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Dan Morales, regarding a legal question submitted for clarification;Whether the Hidalgo county Bail Bond Board has the authority to raise or lower the bail bond to security ratio set by V.T.C.S article 2372p-3,section 6(g) (ID# 18845).
Date: March 12, 1993
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: LO93-022 (open access)

Texas Attorney General Opinion: LO93-022

Letter opinion issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Dan Morales, regarding a legal question submitted for clarification: Whether a member of the board of trustees of a school district may serve simultaneously as a member of a city council located in the same county (ID# 18954)
Date: March 12, 1993
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Parks & Wildlife News, March 12, 1993 (open access)

Texas Parks & Wildlife News, March 12, 1993

Weekly newsletter discussing natural resources, parks, hunting and fishing, and other information related to the outdoors in Texas.
Date: March 12, 1993
Creator: Texas. Parks and Wildlife Department.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 18, Number [20], Pages 1599-1735, March 12, 1993 (open access)

Texas Register, Volume 18, Number [20], Pages 1599-1735, March 12, 1993

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: March 12, 1993
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Thermodynamics of computation and information distance (open access)

Thermodynamics of computation and information distance

Applying the tools of algorithmic information theory, we compare several candidates for an asymptotically machine-independent. absolute measure of the informational or cognitive'' distance between discrete objects x and y. The maximum of the conditional Kolmogorov complexities max[l brace]K(y[vert bar]z) K(m[vert bar]y)[r brace], is shown to be optimal, in the sense of being minimal within an additive constant among semicomputable, symmetric, positive semidefinite functions of z and y satisfying a reasonable normalization condition and obeying the triangle intequality. The optimal metric, in turn, differs by at most an additive logarithmic term from the size of the smallest program for a universal reversible computer to transform x into y. This program functions in a 'catalytic'' capacity, being retained in the computer before, during, and after the computation. Similarly, the sum of the conditional complexities. K(y[vert bar]x) + K(x[vert bar]y), is shown to be equal within a logarithmic term to the minimal amount Of information flowing out and in during a reversible computation in which the program is not retained. Finally. using the physical theory of reversible computation, it is shown that the simple difference K(x) - K(y) is an appropriate (ie universal, antisymmetric, and transitive) measure of the amount of thermodynamic work …
Date: March 12, 1993
Creator: Bennett, C.H.; Gacs, P.; Li, M.; Vitanyi, P.M.B. & Zurek, W.H.
Object Type: Article
System: The UNT Digital Library
Thermodynamics of computation and information distance (open access)

Thermodynamics of computation and information distance

Applying the tools of algorithmic information theory, we compare several candidates for an asymptotically machine-independent. absolute measure of the informational or ``cognitive`` distance between discrete objects x and y. The maximum of the conditional Kolmogorov complexities max{l_brace}K(y{vert_bar}z) K(m{vert_bar}y){r_brace}, is shown to be optimal, in the sense of being minimal within an additive constant among semicomputable, symmetric, positive semidefinite functions of z and y satisfying a reasonable normalization condition and obeying the triangle intequality. The optimal metric, in turn, differs by at most an additive logarithmic term from the size of the smallest program for a universal reversible computer to transform x into y. This program functions in a `catalytic`` capacity, being retained in the computer before, during, and after the computation. Similarly, the sum of the conditional complexities. K(y{vert_bar}x) + K(x{vert_bar}y), is shown to be equal within a logarithmic term to the minimal amount Of information flowing out and in during a reversible computation in which the program is not retained. Finally. using the physical theory of reversible computation, it is shown that the simple difference K(x) - K(y) is an appropriate (ie universal, antisymmetric, and transitive) measure of the amount of thermodynamic work required to transform string x into …
Date: March 12, 1993
Creator: Bennett, C. H.; Gacs, P.; Li, M.; Vitanyi, P. M. B. & Zurek, W. H.
Object Type: Article
System: The UNT Digital Library
Application of integrated reservoir management and reservoir characterization to optimize infill drilling. Quarterly technical progress report, December 13, 1994--March 12, 1995 (open access)

Application of integrated reservoir management and reservoir characterization to optimize infill drilling. Quarterly technical progress report, December 13, 1994--March 12, 1995

Results are presented concerning reservoir performance analysis and effectiveness of hydraulic fracture treatments. A geostatistical analysis task, reservoir simulation, and integrated reservoir description tasks are also described.
Date: March 12, 1995
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Acceptance test report for high pressure water jet system feed pump (open access)

Acceptance test report for high pressure water jet system feed pump

This document summarizes results of WHC-SD-SNF-ATP-016, Rev. 0 ``Acceptance Test Procedure High Pressure Water Jet System``, conducted on December 20, 1995 and December 22, 1995. This jet supplies water at 15,000 psi @ 15 gpm to nozzles to clean surfaces of empty fuel storage canisters.
Date: March 12, 1996
Creator: Crystal, J.B.
Object Type: Report
System: The UNT Digital Library
Fuel sorting evaluation (open access)

Fuel sorting evaluation

An evaluation of functions and requirements associated with sorting fuel from the Hanford K Basins is presented to support design issue resolution decisions for achieving interim fuel storage. Potential requirements are recommended for implementation in design activities. The recommendations are provided as input to a management decision process where decisions are finalized and the sorting issue is closed.
Date: March 12, 1996
Creator: Pajunen, A.L.
Object Type: Report
System: The UNT Digital Library
Monolithic millimeter-wave and picosecond electronic technologies (open access)

Monolithic millimeter-wave and picosecond electronic technologies

Theoretical and experimental studies into monolithic millimeter-wave and picosecond electronic technologies have been undertaken as a collaborative project between the Lawrence Livermore National Laboratory (LLNL) and the University of California Department of Applied Science Coherent Millimeter-Wave Group under the auspices of the Laboratory Directed Research and Development Program at LLNL. The work involves the design and fabrication of monolithic frequency multiplier, beam control, and imaging arrays for millimeter-wave imaging and radar, as well as the development of high speed nonlinear transmission lines for ultra-wideband radar imaging, time domain materials characterization and magnetic fusion plasma applications. In addition, the Coherent Millimeter-Wave Group is involved in the fabrication of a state-of-the-art X-band ({approximately}8-11 GHz) RF photoinjector source aimed at producing psec high brightness electron bunches for advanced accelerator and coherent radiation generation studies.
Date: March 12, 1996
Creator: Talley, W. K. & Luhmann, N. C.
Object Type: Report
System: The UNT Digital Library
Structural evaluation for the core sampling trucks, RMCS operations, 200 Area (open access)

Structural evaluation for the core sampling trucks, RMCS operations, 200 Area

This report evaluates the structural adequacy and the integrity of the existing core sampling trucks to withstand impact should the trucks drop off the ramp, either onto the soft ground or onto a non-yielding surface due to operational error, wind, or earthquake. The report also addresses if the allowable tank dome load will be exceeded by the addition of the impact load.
Date: March 12, 1996
Creator: Islam, M. A.
Object Type: Report
System: The UNT Digital Library
Sub-50 femtosecond, multiterwatt Ti:sapphire laser system (open access)

Sub-50 femtosecond, multiterwatt Ti:sapphire laser system

We discuss a Ti:sapphire laser system based on chirped pulse amplification which produces over 750 mJ in sub-50 femtosecond pulses. We also describe a novel, all-reflective stretcher with a stretching ratio of 30,000.
Date: March 12, 1996
Creator: Banks, P. S.; Zweiback, J.; Fochs, S. N.; Stuart, B. C. & Perry, M. D.
Object Type: Article
System: The UNT Digital Library
Texas Register, Volume 21, Number 19, Part-I, Pages 1925-2067, March 12, 1996 (open access)

Texas Register, Volume 21, Number 19, Part-I, Pages 1925-2067, March 12, 1996

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: March 12, 1996
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 21, Number 19, Part-II, Pages 2069-2141, March 12, 1996 (open access)

Texas Register, Volume 21, Number 19, Part-II, Pages 2069-2141, March 12, 1996

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: March 12, 1996
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
TWRS safety and technical integration risk management plan (open access)

TWRS safety and technical integration risk management plan

The objectives of the Tank Waste Remediation System (TWRS) Safety and Technical Integration (STI) programmatic risk management program are to assess, analyze, and handle risks associated with TWRS STI responsibilities and to communicate information about the actions being taken and the results to enable decision making. The objective of this TWRS STI Risk Management Plan is to communicate a consistent approach to risk management that will be used by the organization.
Date: March 12, 1996
Creator: Fordham, R. A.
Object Type: Report
System: The UNT Digital Library
1996 Tier two emergency and hazardous chemical inventory emergency planning and community right-to-know act section 312 (open access)

1996 Tier two emergency and hazardous chemical inventory emergency planning and community right-to-know act section 312

None
Date: March 12, 1997
Creator: Hays, C. B.
Object Type: Report
System: The UNT Digital Library