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Baytown Connection (Baytown, Tex.), Vol. 2, No. 2, Ed. 1 Wednesday, April 1, 1998
Newspaper from Baytown, Texas published by the Exxon Corporation that includes news and information of interest to current and former employees of the Baytown facilities.
Date:
April 1, 1998
Creator:
Pfennig, Glena
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 76, No. 125, Ed. 1 Wednesday, April 1, 1998
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
April 1, 1998
Creator:
Dobbs, Gary
Object Type:
Newspaper
System:
The Portal to Texas History
Bear Creek Valley Floodplain hot spot removal early action characterization field data summary report, Oak Ridge Y-12 Plant, Oak Ridge, Tennessee
This report summarizes the field and laboratory efforts as a result of the Bear Creek Floodplain Hot Spot Removal Project Early Action. The purpose of this project was to collect data necessary to assess contaminant levels in the Bear Creek Valley Floodplain and evaluate the risk posed by the sites. This report provides information on the background of the site, characterization of site and field activities, results of field and laboratory data collected, extent and distribution of contamination, and an assessment of the future risk posed by the site.
Date:
April 1, 1998
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Bench-Scale Testing and Verification of Pyrolysis Concept for Remediation of Tank Bottoms: Final Report
Final report
Date:
April 1998
Creator:
Satchwell, Robert
Object Type:
Report
System:
The UNT Digital Library
Biodiesel research progress 1992-1997
The US Department of Energy (DOE) Office of Fuels Development began evaluating the potential of various alternative fuels, including biodiesel, as replacement fuels for traditional transportation fuels. Biodiesel is derived from a variety of biological materials from waste vegetable grease to soybean oil. This alkyl ester could be used as a replacement, blend, or additive to diesel fuel. This document is a comprehensive summary of relevant biodiesel and biodiesel-related research, development demonstration, and commercialization projects completed and/or started in the US between 1992 and 1997. It was designed for use as a reference tool to the evaluating biodiesel`s potential as a clean-burning alternative motor fuel. It encompasses, federally, academically, and privately funded projects. Research projects are presented under the following topical sections: Production; Fuel characteristics; Engine data; Regulatory and legislative activities; Commercialization activities; Economics and environment; and Outreach and education.
Date:
April 1, 1998
Creator:
Tyson, K. S.
Object Type:
Report
System:
The UNT Digital Library
Bioreporter bacteria for landmine detection
Landmines (and other UXO) gradually leak explosive chemicals into the soil at significant concentrations. Bacteria, which have adapted to scavenge low concentrations of nutrients, can detect these explosive chemicals. Uptake of these chemicals results in the triggering of specific bacterial genes. The authors have created genetically recombinant bioreporter bacteria that detect small concentrations of energetic chemicals. These bacteria are genetically engineered to produce a bioluminescent signal when they contact specific explosives. A gene for a brightly fluorescent compound can be substituted for increased sensitivity. By finding the fluorescent bacteria, you find the landmine. Detection might be accomplished using stand-off illumination of the minefield and GPS technology, which would result in greatly reduced risk to the deminers. Bioreporter technology has been proven at the laboratory scale, and will be tested under field conditions in the near future. They have created a bacterial strain that detects sub-micromolar concentrations of o- and p-nitrotoluene. Related bacterial strains were produced using standard laboratory protocols, and bioreporters of dinitrotoluene and trinitrotoluene were produced, screening for activity with the explosive compounds. Response time is dependent on the growth rate of the bacteria. Although frill signal production may require several hours, the bacteria can be applied over vast …
Date:
April 1, 1998
Creator:
Burlage, R.S.; Youngblood, T. & Lamothe, D.
Object Type:
Report
System:
The UNT Digital Library
The Black Economic Times (Oklahoma City, Okla.), Vol. 2, No. 7, Ed. 1 Wednesday, April 1, 1998
Semimonthly newspaper from Oklahoma City, Oklahoma that includes local, state, and national news along with advertising.
Date:
April 1, 1998
Creator:
Dismuke, Vernona
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Blast Furnace Granular Coal Injection Projection. Annual Report, Jan 1 - Dec 31, 1997
This 1997 annual report describes the Blast Furnace Granular Coal Injection project being implemented at the Burns Harbor Plant of Bethlehem Steel Corporation. The project is receiving cost-sharing from the U.S. Department of Energy (DOE), and is being administrated by the Morgantown Energy Technology Center in accordance with the DOE Cooperative Agreement No. DE-FC21-91MC27362. This installation is the first in the United States to use British Steel technology1*2 that uses granular coal to provide a portion of the fuel requirements of blast furnaces. The project will demonstrate/assess a broad range of technical and economic issues associated with the use of coal for injection into blast furnaces. To achieve the progmm objectives, the demonstration project is divided into the following three Phases: Phase I - Design Phase II - Construction Phase III - Operation Preliminary Design (Phase 1) began in 1991 with detailed design commencing in 1993. Construction at the Burns Harbor Plant (Phase II) began in August 1993 and was completed at the end of 1994. The demonstration test program (Phase III) started in the fourth quarter of 1995.
Date:
April 1, 1998
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Border Business Indicators, Volume 22, Number 4, April 1998
Monthly publication documenting statistics related to economic information in the Mexico-Texas border areas including types of border crossings, employment, customs revenues, and other related data.
Date:
April 1998
Creator:
Texas Center for Border Economic and Enterprise Development
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
BPA Prepares for the 21st Century.
This is a brief review of the state of the Bonneville Power Administration. It reviews BPA`s competitive status, fish and wildlife funding, cost structure of the federal system, subscription sales of electricity, emergency cost recovery, cost reduction measures, transmission access and operation, and the 1998 power rate case decision making process.
Date:
April 1, 1998
Creator:
United States. Bonneville Power Administration.
Object Type:
Report
System:
The UNT Digital Library
The Brand (Abilene, Tex.), Vol. 84, No. 15, Ed. 1, Wednesday, April 1, 1998
Weekly student newspaper from Hardin-Simmons University in Abilene, Texas that includes local, state and campus news along with advertising.
Date:
April 1, 1998
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Building a simulator control station using the TCL/TK language
This paper describes the construction of a simulator graphical user interface (GUI) using the cross-platform, public domain programming language TCL/TK. TCL/TK is a high level scripting language for building GUIs. It is freely available for UNIX, Windows and the Mac operating systems. This paper will demonstrate how the traditionally difficult, time consuming aspects of producing a simulator control station are easily overcome with TCL/TK. Referred to as the Interactive Control Station (ICS), this user interface provides a graphical method for interactive control of real time applications produced with the Real Time Programming Environment (RTProE). The techniques and tools developed for connecting the ICS to real time simulator models are described in detail within the paper. The real time data collection and plotting tool included with the ICS is also discussed. The ICS uses a client/server design and can provide its features across a distributed computer network. Standard TCP/IP sockets are used as the communications transport medium. Multiple clients on a network may be served by a single server connected to the simulation. The clients may exist on the same or separate computers. Multiple servers, connected to different simulations, can also exist on the same or separate computers of the network.
Date:
April 1, 1998
Creator:
LaBelle, D. R.
Object Type:
Article
System:
The UNT Digital Library
Building a simulator control station using the TCL/TK language -- Appendix A
This appendix contains all source code for the Interactive Control Station. The following file contents are included: ics.tcl; icserver.tcl; icsgraph.tcl; lib{_}ics.tcl.
Date:
April 1, 1998
Creator:
LaBelle, D. R.
Object Type:
Article
System:
The UNT Digital Library
Building an internet-based workflow system - the case of Lawrence Livermore National Laboratories` Zephyr project
Lawrence Livermore National Laboratories` Zephyr System provides a showcase for the ways in which emerging technologies can help streamline procurement processes and improve the coordination between participants in engineering projects by allowing collaboration in ways that have not been possible before. The project also shows the success of a highly pragmatic approach that was initiated by the end user community, and that intentionally covered standard situations, rather than aiming at also automating the exceptions. By helping push purchasing responsibilities down to the end user, thereby greatly reducing the involvement of the purchasing department in operational activities, it was possible to streamline the process significantly resulting in time savings of up to 90%, major cost reductions, and improved quality. Left with less day-to- day purchasing operations, the purchasing department has more time for strategic tasks such as selecting and pre-qualifying new suppliers, negotiating blanket orders, or implementing new procurement systems. The case shows once more that the use of information technologies can result in major benefits when aligned with organizational adjustments.
Date:
April 1, 1998
Creator:
Jordan, C. W., LLNL
Object Type:
Report
System:
The UNT Digital Library
Cadmium zinc telluride spectral modeling
Cadmium Zinc Telluride (CZT) detectors are the highest resolution room-temperature gamma ray detectors available for isotopic analysis. As with germanium detectors, accurate isotopic analysis using the spectra requires peak deconvolution. The CZT peak shapes are asymmetric, with a long low energy tail. The asymmetry is a result of the physics of the electron/hole transport in the semiconductor. An accurate model of the physics of the electron/hole transport through an electric field will allow the parameterization of the peak shapes as a function of energy. In turn this leads to the ability to perform accurate spectral deconvolution and therefore accurate isotopic analysis. The model and the peak-shape parameterization as a function of energy will be presented.
Date:
April 1, 1998
Creator:
Dardenne, Y. X., LLNL
Object Type:
Article
System:
The UNT Digital Library
[Card from Elizabeth and Ficre Ghebreyesus to Sterling Houston - April 1998]
Card from Elizabeth Alexander and Ficre Ghebreyesus to Sterling Houston, prominent San Antonio playwright. They write to announce the birth of their son, Solomon Kebede Ghebreyesus. It includes his birth date, weight, and length.
Date:
April 1998
Creator:
Ghebreyesus, Elizabeth Alexander & Ghebreyesus, Ficre
Object Type:
Text
System:
The Portal to Texas History
CART and GSFC Raman lidar measurements of atmospheric aerosol backscattering and extinction profiles for EOS validation and ARM radiation studies
The aerosol retrieval algorithms used by the Moderate-Resolution Imaging Spectroradiometer (MODIS) and Multi-Angle Imaging SpectroRadiometer (MISR) sensors on the Earth Observing Satellite (EOS) AM-1 platform operate by comparing measured radiances with tabulated radiances that have been computed for specific aerosol models. These aerosol models are based almost entirely on surface and/or column averaged measurements and so may not accurately represent the ambient aerosol properties. Therefore, to validate these EOS algorithms and to determine the effects of aerosols on the clear-sky radiative flux, the authors have begun to evaluate the vertical variability of ambient aerosol properties using the aerosol backscattering and extinction profiles measured by the Cloud and Radiation Testbed (CART) and NASA Goddard Space Flight Center (GSFC) Raman Lidars. Using the procedures developed for the GSFC Scanning Raman Lidar (SRL), the authors have developed and have begun to implement algorithms for the CART Raman Lidar to routinely provide profiles of aerosol extinction and backscattering during both nighttime and daytime operations. Aerosol backscattering and extinction profiles are computed for both lidar systems using data acquired during the 1996 and 1997 Water Vapor Intensive Operating Periods (IOPs). By integrating these aerosol extinction profiles, they derive measurements of aerosol optical thickness and compare …
Date:
April 1, 1998
Creator:
Ferrare, R.A.; Turner, D.D.; Melfi, S.H.; Evans, K.D.; Whiteman, D.N.; Schwemmer, G. et al.
Object Type:
Article
System:
The UNT Digital Library
Cat's Claw (Archer City, Tex.), Vol. 52, No. 5, Ed. 1 Wednesday, April 1, 1998
Monthly student newspaper from Archer City High School in Archer City, Texas that includes news and information of interest to students along with advertising.
Date:
April 1, 1998
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The CDF silicon detector upgrade
A major silicon upgrade project is under way for the CDFII experiment that will operate during Run II of the Tevatron in the year 2000. The innermost detector, SVXII, will cover the interaction region with three barrels of five layers of double sided microstrip detectors. In the radial gap between the SVXII and the new main tracking chamber (COT) will be located the ISL that consists of two planes of double sided miscrostrip detectors at large pseudorapidity and one in the central region. A description of the project design and its motivation is presented here.
Date:
April 1, 1998
Creator:
Azzi, P.
Object Type:
Article
System:
The UNT Digital Library
Cesium Hydroxide Fusion Dissolution of Analytical Reference Glass-1 in Both Powder and Shard Form
CsOH has been shown to be an effective and convenient dissolution reagent for Analytical Reference Glass-1 (ARG-1). This glass standard was prepared from nonradioactive DWPF Start-up Glass. Therefore, its composition is similar to DWPF product glass and many of the glass matrices prepared at SRTC.The principal advantage of the CsOH fusion dissolution is that the reagent does not add the alkali metals Li, Na, and K usually needed by SRS customers. Commercially available CsOH is quite pure so that alkali metals can be measured accurately, often without blank corrections. CsOH fusions provide a single dissolution method for applicable glass to replace multiple dissolution schemes used by most laboratories. For example, SRTC glass samples are most commonly dissolved with a Na{sub 2}O{sub 2}-NaOH fusion (ref.1) and a microwave- assisted acid dissolution with HNO{sub 3}-HF-H{sub 3}BO{sub 3}-HCl (ref.2). Othe laboratories use fusion methods based on KOH, LiBO{sub 2}, and Na{sub 2}CO{sub 3} CsOH fusion approach reduces by half not only the work in the dissolution laboratory, but also in the spectroscopy laboratories that must analyze each solution.Experiments also revealed that glass shards or pellets are rapidly attacked if the flux temperature is raised considerably above the glass softening point. The softening point …
Date:
April 1998
Creator:
Coleman, C. J. & Spencer, W. A.
Object Type:
Report
System:
The UNT Digital Library
A Characterization and Evaluation of Coal Liquefaction Process Streams
This is the Technical Progress Report for the eleventh quarter of activities under DOE Contract No. DE-AC22-94PC93054. It covers the period January 1 through March 31, 1997. Described in this report are the following activities: (1) CONSOL characterized process stream samples from HTI Run ALC-2, in which Black Thunder Mine coal was liquefied using four combinations of dispersed catalyst precursors. These results are described in the Results and Discussion section of this report. (2) Oil assays were completed on the HT I Run PB-05 product blend. Background information is presented in the Results and Discussion section of this report. The results are presented in Appendix 1. (3) Fractional distillation of the net product oil of HTI Run POC-1 was completed. Background information is presented in the Results and Discussion section of this report. The results are presented in Appendix 2. (4) CONSOL completed an evaluation of the potential for producing alkylphenyl ethers from coal liquefaction phenols. Those results are described briefly in the Results and Discussion section of this report. The full report is presented in Appendix 3. (5) At the request of DOE, various coal liquid samples and relevant characterization data were supplied to the University of West Virginia …
Date:
April 1, 1998
Creator:
Robbins, G. A.; Heunisch, G. W.; Winschel, R. A. & Brandes, S. D.
Object Type:
Report
System:
The UNT Digital Library
Characterization of carbon-based electrochemical capacitor technology from Maxwell Energy Products, Inc.
The electrochemical capacitor devices described in this report were deliverables from the US Department of Energy--Idaho Operations Office (DOE-ID) Contract No. DE-AC07-92ID13404 as part of the US Department of Energy`s (DOE) High Power Energy Storage Program. The Idaho national Engineering and Environmental Laboratory (INEEL) has responsibility for technical management, testing, and evaluation of high-power batteries and electrochemical capacitors under this Program. The DOE has developed various electrochemical capacitors as candidate power assist devices for the Partnership for a New Generation of Vehicles (PNGV) fast response engine requirement. This contract with Maxwell Energy Products, Inc. (Maxwell) was intended to develop a high-energy-density, high-power-density ultracapacitor that is capable of load leveling batteries in electric vehicles. The performance criteria for this device are delivery of 5 W {center_dot} h/kg of useful energy that can be used by the vehicle at an average power rating of 600 W/kg. The capacitor must also have an overall charge/discharge efficiency of 90%, and a useful life of more than 100,000 discharge cycles. The deliverables reported on here are those prepared by Maxwell Energy Products, Inc. at various stages of their developmental program. Deliverables were sent to the INEEL`s Energy Storage Technologies (EST) Laboratory for independent testing and …
Date:
April 1, 1998
Creator:
Wright, R.B. & Murphy, T.C.
Object Type:
Report
System:
The UNT Digital Library
Characterization of the structure and polarity of twin boundaries in GaP
The structure of planar defects in GaP films grown by MBE on Si (110) was investigated by transmission electron microscopy. Growth of GaP films on the (110) surface produced numerous microtwins which formed both first and second order twin boundaries. Using high-resolution transmission electron microscopy, the atomic structure of {Sigma} = 3 and {Sigma} = 9 twin boundaries were studied. Both the {Sigma} = 3 and {Sigma} = 9 interfaces were observed to facet along specific crystallographic planes. Geometric models of the {Sigma} = 9 {l_brace}221{r_brace} twin boundary accounting for different polar bonding configurations were proposed and compared with experimental observations.
Date:
April 1, 1998
Creator:
Cohen, D.; Medlin, D. L. & Carter, C. B.
Object Type:
Article
System:
The UNT Digital Library
The characterization of Vicker`s microhardness indentations and pile-up profiles as a strain-hardening microprobe
Microhardness measurements have long been used to examine strength properties and changes in strength properties in metals, for example, as induced by irradiation. Microhardness affords a relatively simple test that can be applied to very small volumes of material. Microhardness is nominally related to the flow stress of the material at a fixed level of plastic strain. Further, the geometry of the pile-up of material around the indentation is related to the strain-hardening behavior of a material; steeper pile-ups correspond to smaller strain-hardening rates. In this study the relationship between pile-up profiles and strain hardening is examined using both experimental and analytical methods. Vickers microhardness tests have been performed on a variety of metal alloys including low alloy, high Cr and austenitic stainless steels. The pile-up topology around the indentations has been quantified using confocal microscopy techniques. In addition, the indentation and pile-up geometry has been simulated using finite element method techniques. These results have been used to develop an improved quantification of the relationship between the pile-up geometry and the strain-hardening constitutive behavior of the test material.
Date:
April 1, 1998
Creator:
Santos Jr., C.; Odette, G. R.; Lucas, G. E.; Schroeter, B.; Klinginsmith, D. & Yamamoto, T.
Object Type:
Report
System:
The UNT Digital Library