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open access

[Letter from Jack Davis and Bill McCarter to Chad Woolery, March 3, 1993]

Description: Photocopy of a letter from Jack Davis and Bill McCarter, co-directors of North Texas Institute for Educators on the Visual Arts, to Chad Woolery, Deputy Superintendent for Dallas ISD. In regards of Janice Wiggins, Visual Arts Special, Dallas Public Schools and her contract with North Texas Institute for Educators on the Visual Arts, hoping that she could be under an extended contract through June 14 - 25, 1993 to finish work she has started with three of her art specialists in planning the 1993… more
Date: March 3, 1993
Creator: Davis, Donald Jack & McCarter, William
Partner: UNT Libraries Special Collections
open access

[Letter from UNT Health Science Board of Regents, to Harold M. Williams, December 3, 1993]

Description: Photocopy of a letter from the University of North Texas Health Science Center Board of Regents, chairman Jerry Farrington, vice chair E.L. Langley, W. David Bayless, Sr., R.L Crawford, Jr., Nancy Halbreich, Joe Kirven, Lucille G. Murchison, Don Rives and Topsy Wright to Harold M. Williams, President and Chief Executive Officer of the J. Paul Getty Trust. In regards to the Board of Regents wanting to let Williams known how much they appreciate the continued support of the Getty Trust towards th… more
Date: December 3, 1993
Creator: Farrington, Jerry
Partner: UNT Libraries Special Collections
open access

[Letter from Vicki Rosenberg to Jack Davis and Bill McCarter, March 3, 1993]

Description: Photocopy of a letter from Vicki Rosenberg, Program Officer of the Getty Center, to Jack Davis and Bill McCarter, co-directors of North Texas Institute for Educators on the Visual Arts. In regards to having to cancel a planned site visit for April due to scheduling conflict with the Trust to work on the FY94 budget. Rosenberg writes that she'll make a planned site visit to the Fort Worth institute sometime in the summer and will let them know by May when those dates will be.
Date: March 3, 1993
Creator: Rosenberg, Vicki
Partner: UNT Libraries Special Collections
open access

Effective length measurements of prototype Main Injector Dipole endpacks

Description: An endpack design has been developed for the Fermilab Main Injector Dipole. A major part of the design process was the testing of a series of prototype removable endpacks. The magnetic parameters that were tested included the effective length and the field shape variation. This report presents a description of the measurement techniques and the results for the effective length. The final endpack has an effective length at 1500 A (0.29T) of 2.6 [plus minus] 0.3 mm greater than the steel length, … more
Date: March 3, 1993
Creator: Glass, H. D.; Brown, B. C. & Harding, D. J.
Partner: UNT Libraries Government Documents Department
open access

Weld overlay coatings for erosion control

Description: A literature review was made. In spite of similarities between abrasive wear and solid particle erosion, weld overlay hardfacing alloys that exhibit high abrasion resistance may not necessarily have good erosion resistance. The performance of weld overlay hardfacing alloys in erosive environments has not been studied in detail. It is believed that primary-solidified hard phases such as carbides and intermetallic compounds have a strong influence on erosion resistance of weld overlay hardfacing … more
Date: March 3, 1993
Creator: Levin, B.; DuPont, J.N. & Marder, A.R.
Partner: UNT Libraries Government Documents Department
open access

Reversed-field pinch studies in the Madison Symmetric Torus

Description: Studies of large-size (R = 1.5 m, a = 0.5 m), moderate current (I < 750 kA) reversed-field pinch (RFP) plasmas are carried out in the Madison Symmetric Torus in order to evaluate and improve RFP confinement, study general toroidal plasma MHD issues, determine the mechanism of the RFP dynamo, and measure fluctuation-induced transport and anomalous ion heating. MST confinement has been improved by reduction of magnetic field errors with correction coils in the primary circuit and reduction of imp… more
Date: April 3, 1993
Creator: Hokin, S.; Almagri, A.; Cekic, M.; Chapman, B.; Crocker, N.; Den Hartog, D.J. et al.
Partner: UNT Libraries Government Documents Department
open access

Heavy Neutral Beam Probe for edge plasma analysis in Tokamaks. Annual progress report, December 1, 1992--November 30, 1993

Description: The contents of this report present the progress achieved to date on the Heavy Neutral Beam Probe project. This effort is an international collaboration in magnetic confinement fusion energy research sponsored by the US Department of Energy, Office of Energy Research (Confinement Systems Division) and the Centre Canadien de Fusion Magnetique (CCFM). The overall objective of the effort is to develop and apply a neutral particle beam to the study of edge plasma dynamics in discharges on the Tokam… more
Date: September 3, 1993
Creator: Castracane, J.; Saravia, E.; Beckstead, J. & Aceto, S.
Partner: UNT Libraries Government Documents Department
open access

The reaction of hydroperoxy-propyl radicals with molecular oxygen

Description: Addition of hydroperoxy-alkyl radicals to molecular oxygen leads to chain branching in autoignition and engine knock, and in low temperature oxidation of paraffins. Rate constants and product channels for reaction of hydroperoxy-propyl radicals with O{sub 2} are estimated using thermodynamic properties, bimolecular quantum Kassel analysis and transition state theory. Thermochemistry of relevant molecules and radicals is estimated using group additivity and bond dissociation groups for radicals.… more
Date: December 3, 1993
Creator: Bozzelli, J. W. & Pitz, W. J.
Partner: UNT Libraries Government Documents Department
open access

Integrated computer-enhanced remote viewing system. Quarterly report No. 2, January--March 1993

Description: The Interactive, Computer-Enhanced, Remote Viewing System (ICERVS) is a system designed to provide a reliable geometric description of a robotic task space in a fashion that enables robotic remediation to be carried out more efficiently and economically than with present systems. The key elements are a faithful way to store empirical data and a friendly user interface that provides an operator with timely access to all that is known about a scene.
Date: May 3, 1993
Partner: UNT Libraries Government Documents Department
open access

Search for the top quark in the electron-electron and electron-muon channels at D0

Description: We discuss preliminary results of a search for top quarks using their decays in two di-lepton, with the D0 detector at Fermilab. The present analysis has been optimized to search for a top with mass near 100{sub c{sup 2}}/{sup GeV}, consistent with published limits. In the event sample corresponding to an integrated luminosity of 15pb{sup {minus}1} we observe two events passing all selection cuts. The number of events observed is consistent with the expected number of background events. Consequ… more
Date: December 3, 1993
Creator: Fatyga, M. & Collaboration, The D0
Partner: UNT Libraries Government Documents Department
open access

A new comprehensive reaction mechanism for combustion of hydrocarbon fuels

Description: A chemical kinetic model has been developed which describes pyrolysis, ignition and oxidation of many small hydrocarbon fuels over a wide range of experimental conditions. Fuels include carbon monoxide and hydrogen, methane and other alkane species up to n-butane, ethylene, propene, acetylene, and oxygenated species such as methanol, acetaldehyde and ethanol. Formation of some larger intermediate and product species including benzene, butadiene, large olefins, and cyclopentadiene has been treat… more
Date: December 3, 1993
Creator: Ranzi, E.; Sogaro, A.; Gaffuri, P.; Pennati, G.; Westbrook, C. K. & Pitz, W. J.
Partner: UNT Libraries Government Documents Department
open access

Development of More Efficacious {Tc}-99m Organ Imaging Agents for Use in Nuclear Medicine by Analytical Characterization of Radiopharmaceuticals. Annual Technical Progress Report, September 1, 1992--August 31, 1993

Description: This research program is detailed at development of more efficacious technetium-99m radiopharmaceuticals for use as imaging agents in diagnostic nuclear medicine. We seek to isolate and develop distinct site imaging agents to provide diagnostic information concerning a given pathological condition. Analytical techniques are being developed to enable complete analysis of radiopharmaceutical preparations so that individual complexes can be characterized with respect to imaging efficacy and to ena… more
Date: May 3, 1993
Creator: Heineman, W. R.
Partner: UNT Libraries Government Documents Department
open access

A comparison between direct spark ignition and prechamber ignition in an internal combustion engine

Description: We simulated the flow field and flame propagation near top dead center in a generic large-bore internal combustion engine using the COYOTE computer program, which is based on the full Navier-Stokes equations for a fluid mixture. The combustion chamber is a right circular cylinder, and the main charge is uniformly premixed. The calculations are axisymmetric. The results illustrate the differences in flow patterns, flame propagation, and thermal NO production between ignition with a spark plug an… more
Date: December 3, 1993
Creator: Cloutman, L. D.
Partner: UNT Libraries Government Documents Department
open access

Advanced Coal-Fueled Gas Turbine Systems. Technical Progress Report, October--December 1992

Description: Activity towards completing Advanced Turbine Systems (ATS) Phase I work was begun again in December. Effort to complete the Phase I work was temporarily suspended upon receipt of the ATS Phase II RFP the last week in August. The Westinghouse ATS team`s efforts were directed at preparing the ATS Phase II proposal which was submitted November 18. It is planned to finish Phase I work and submit the topical report by the end of February 1993. The objective of the four slogging combustor tests condu… more
Date: February 3, 1993
Partner: UNT Libraries Government Documents Department
open access

Weld overlay coatings for erosion control. Task A: Literature review, progress report

Description: A literature review was made. In spite of similarities between abrasive wear and solid particle erosion, weld overlay hardfacing alloys that exhibit high abrasion resistance may not necessarily have good erosion resistance. The performance of weld overlay hardfacing alloys in erosive environments has not been studied in detail. It is believed that primary-solidified hard phases such as carbides and intermetallic compounds have a strong influence on erosion resistance of weld overlay hardfacing … more
Date: March 3, 1993
Creator: Levin, B.; DuPont, J. N. & Marder, A. R.
Partner: UNT Libraries Government Documents Department
open access

Results of a baseflow tritium survey of surface water in Georgia across from the Savannah River Site

Description: In October 1991 the Georgia Department of Natural Resources (GDNR) issued a press release notifying the public that tritium had been measured in elevated levels (1,200 - 1,500 pCi/1) in water samples collected from drinking water wells in Georgia across from the Savannah River Site in Aiken Co. South Carolina. None of the elevated results were above the Primary Drinking Water Standard for tritium of 20,000 pCi/l. The GDNR initiated 2 surveys to determine the source and extent of elevated tritiu… more
Date: March 3, 1993
Creator: Nichols, R. L.
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: Hutchison subpeona Pkg]

Description: Video footage from the WBAP-TV television station in Fort Worth, Texas, covering a news story.
Date: September 3, 1993, 10:00 p.m.
Duration: 1 minute 42 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
open access

Search for the top quark from (e,{mu}) and (e,e) events in the D0 detector in p{bar p} collisions at {radical}s = 1.8 TeV

Description: We present results from searches for top quark production in p{bar p} collisions at the Tevatron collider based on an integrated luminosity of 7.5 pb{sup {minus}1} obtained during the 1992--1993 ran. The present results are confined to decay modes where both the top and anti-top quarks in the event decay semi-leptonically to the ee and e{mu} channels. A lower limit of 103 (99) GeV/c{sup 2} is obtained at 95% confidence level for the top quark mass from the absence of events consistent with stan… more
Date: June 3, 1993
Creator: Raja, R.
Partner: UNT Libraries Government Documents Department
open access

SOXAL combined SO{sub x}/NO{sub x} flue gas control demonstration. Quarterly report, April--June 1993

Description: AQUATECH Systems, a business unit of Allied-Signal Inc., proposes to demonstrate the technical viability and cost effectiveness of the SOXAL process a combined SO{sub x}/NO{sub x} control process on a 3 MW equivalent flue gas slip stream from Niagara Mohawk Power Corporation, Dunkirk Steam Station Boiler No. 4, a coal fired boiler. The SOXAL process combines 90+% sulfur dioxide removal from the flue gas using a sodium based scrubbing solution and regeneration of the spent scrubbing liquor using… more
Date: August 3, 1993
Partner: UNT Libraries Government Documents Department
open access

Search for the top quark from (e,[mu]) and (e,e) events in the D0 detector in p[bar p] collisions at [radical]s = 1. 8 TeV

Description: We present results from searches for top quark production in p[bar p] collisions at the Tevatron collider based on an integrated luminosity of 7.5 pb[sup [minus]1] obtained during the 1992--1993 ran. The present results are confined to decay modes where both the top and anti-top quarks in the event decay semi-leptonically to the ee and e[mu] channels. A lower limit of 103 (99) GeV/c[sup 2] is obtained at 95% confidence level for the top quark mass from the absence of events consistent with stan… more
Date: June 3, 1993
Creator: Raja, R.
Partner: UNT Libraries Government Documents Department
open access

Effective length measurements of prototype Main Injector Dipole endpacks

Description: An endpack design has been developed for the Fermilab Main Injector Dipole. A major part of the design process was the testing of a series of prototype removable endpacks. The magnetic parameters that were tested included the effective length and the field shape variation. This report presents a description of the measurement techniques and the results for the effective length. The final endpack has an effective length at 1500 A (0.29T) of 2.6 {plus_minus} 0.3 mm greater than the steel length, … more
Date: March 3, 1993
Creator: Glass, H. D.; Brown, B. C. & Harding, D. J.
Partner: UNT Libraries Government Documents Department
open access

SRTC criticality safety technical review of SRT-CMA-930039

Description: Review of SRT-CMA-930039, ``Nuclear Criticality Safety Evaluation (NCSE): DWPF Melter-Batch 1,`` December 1, 1993, has been performed by the Savannah River Technical Center (SRTC) Applied Physics Group. The NCSE is a criticality assessment of the Melt Cell in the DWPF. Additionally, this pertains only to Batch 1 operation, which differs from batches to follow. Plans for subsequent batch operations call for fissile material in the Salt Cell feed-stream, which necessitates a separate criticality … more
Date: December 3, 1993
Creator: Rathbun, R.
Partner: UNT Libraries Government Documents Department
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