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Exploring novel silicon-containing polymers---From preceramic polymers to conducting polymers with nonlinear optical properties

Description: Several new types of silicon-containing preceramic polymers, i.e., poly(diorganosilacetylene) and poly(diorganosilvinylene) have been synthesized with molecular weights from 10,000 to 120,000. These polymers could be thermally converted to SiC with a moderate to high char yields. Ready solubility and good processability made these types of polymers attractive in their applications to ceramics. The thermal polymerization of diethynyldiphenyl-silane, which was reported in 1968 to afford poly(diph… more
Date: October 7, 1991
Creator: Pang, Yi.
Partner: UNT Libraries Government Documents Department
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Low-cost solar array project. Task I. Silicon material. Investigation of the hydrogenation of SiCl/sub 4/

Description: Reaction kinetic measurements on the hydrochlorination of SiCl/sub 4/ and m.g. silicon metal were last reported as a function of reaction temperature, reactor pressure, H/sub 2//SiCl/sub 4/ ratio and silicon metal particle size distribution, 3 SiCl/sub 4/ + 2 H/sub 2/ + Si reversible 4 SiHCl/sub 3/. The effect of impurities in the m.g. silicon metal on the rate of this reaction has been investigated in this quarter. The m.g. silicon was replaced with high purity, electronic grade silicon metal … more
Date: October 7, 1980
Creator: Mui, J. Y. P. & Seyferth, D.
Partner: UNT Libraries Government Documents Department
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Some Scoping Experiments for a Space Reactor

Description: Some scoping experiments were performed to evaluate fuel performance in a lithium heat pipe reactor operating at a nominal 1500K heat pipe temperature. Fuel-coolant and fuel-coolant-clad relationships showed that once a failed heat pipe occurs temperatures can rise high enough so that large concentrations of uranium can be transported by the vapor phase. Upon condensation this uranium would be capable of penetrating heat pipes adjacent to the failed pipe. The potential for propagation of failur… more
Date: July 7, 1983
Creator: Alexander, C. A. & Ogden, J. S.
Partner: UNT Libraries Government Documents Department
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[News Script: Tower]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas relating a news story.
Date: March 7, 1969
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
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[News Script: Death]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas relating a news story.
Date: October 7, 1968
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
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[Letter from Marvin E. Edwards to Bill McCarter, February 7, 1992]

Description: Photocopy of a letter from Marvin E. Edwards, General Superintendent, Dallas ISD, to Bill McCarter, co-director for North Texas Institute for Educators on the Visual Arts. Thanking McCarter for his letter of January 10, 1992 requesting the attendance of Janice Wiggins, Visual Arts Specialist for the DISD at the National Art Education Association Conference, which Edwards is pleased to have her participate in the DBAE report. Edwards also is in support of the discipline-based approach to teachin… more
Date: February 7, 1992
Creator: Edwards, Marvin E.
Partner: UNT Libraries Special Collections
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[RE: "Achieving National Education Reform: Arts Education as Catalyst," January 7, 1993]

Description: Photocopy of a letter from Vicki Rosenberg, program officer of the Getty Center, to the Regional and Californian Institute Exhibition Staff. In regards to "Achieving National Education Reform: Art Education as Catalyst" conference being held at San Francisco Hilton and Towers, February 3, 1993. The letter holds information about travel arrangements needed to be made before January 20th, hotel reservations and notification that the Getty center will cover the cost of lodging, incidental expenses… more
Date: January 7, 1993
Creator: Rosenberg, Vicki
Partner: UNT Libraries Special Collections
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[Letter from Nancy Reynolds to Nancy Ruff, May 7, 1993]

Description: Photocopy of a letter from Nancy Reynolds, project coordinator of North Texas Institute for Educators on the Visual Arts, to Nancy Ruff, Hurst-Euless-Bedford ISD. In regards to a letter that Bill McCarter and Jack Davis wrote to Russ Chapman, Principal of Lakewood Elementary School, to congratulate Chapman on being selected by the Getty Institute to attend a National Administrators Focus Group Conference. Reynolds informs Ruff that Chapman will give presentations on two different days about the… more
Date: May 7, 1993
Creator: Reynolds, Nancy
Partner: UNT Libraries Special Collections
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[Letter from Jack Davis to Janice Wiggins, April 7, 1995]

Description: Photocopy of a letter from Jack Davis, co-director of North Texas Institute for Educators on the Visual Arts, to Janice Wiggins, Dallas ISD. Discussing the use of grant money. Wiggins requested that the grant money, intended to be used for support of Dallas I.S.D's participation in the Secondary Institute be used to stipends for participants of the Elementary Institute instead. Davis writes back that this is not possible for several reason which he encloses in the letter, the first being that h… more
Date: April 7, 1995
Creator: Davis, Donald Jack
Partner: UNT Libraries Special Collections
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[Letter from Bill McCarter, Jack Davis and Nancy Reynolds to Russell Chapman, May 7, 1993]

Description: Photocopy of a letter from Bill McCarter, Jack Davis and Nancy Reynolds, North Texas Institute for Educators on the Visual Arts, to Russel Chapman, Principal of Lakewood Elementary School. In regards to Chapman's selection by the Getty Institute to represent North Texas Institute for Educators on the Visual Arts at the upcoming National Administrators Focus Group Conference and that Chapman's enthusiasm and dedication to the discipline-based art education, DBAE, program deserves recognition. Th… more
Date: May 7, 1993
Creator: Davis, Donald Jack; McCarter, William & Reynolds, Nancy
Partner: UNT Libraries Special Collections
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