Resource Type

[Fort Worth Star-Telegram Arts & Entertainment, January 30, 1995] (open access)

[Fort Worth Star-Telegram Arts & Entertainment, January 30, 1995]

An article written by Janet Tyson for the Arts & Entertainment section of the Fort Worth Star-Telegram titled 'Thumbnail Sketch'. The piece is a snapshot of who Dr. R. William McCarter is with direct quotes from him.
Date: January 30, 1995
Creator: Tyson, Janet
System: The UNT Digital Library
New Mexico Geochronology Research Laboratory: Zuni-Bandera volcanic field road log (open access)

New Mexico Geochronology Research Laboratory: Zuni-Bandera volcanic field road log

This field conference was designed to assemble a group of Quaternary researchers to examine the possibility of using the Zuni-Bandera volcanic field in western New Mexico as a test area for evaluating and calibrating various Quaternary dating techniques. The Zuni-Bandera volcanic-field is comprised of a large number of basaltic lava flows ranging in age from about 700 to 3 ka. Older basalts are present in the Mount Taylor volcanic field to the north. Geologic mapping has been completed for a large portion of the Zuni-Bandera volcanic field and a number of geochronological investigations have been initiated in the area. While amending this conference, please consider how you might bring your expertise and capabilities to bear on solving the many problem in Quaternary geochronology.
Date: January 1, 1993
Creator: Laughlin, A. William; Charles, Robert; Reid, Kevin & White, Carol
System: The UNT Digital Library
[Newspaper Article: B'wood Harvey Girl in 'Texas Highways'] (open access)

[Newspaper Article: B'wood Harvey Girl in 'Texas Highways']

Newspaper article about Lillian Preas, a resident of Brownwood, Texas and former Harvey Girl whose story was used in the magazine Texas Highways.
Date: January 26, 1992
Creator: Graves, Harriette
System: The Portal to Texas History
[Plano Star Courier article, January 16, 1992] (open access)

[Plano Star Courier article, January 16, 1992]

An article written by Valerie Barna in the Plano Star Courier about the multinational studies program created at Carlisle Elementary School to highlight the cultures of some of its students. The PTA set up stations where students could experience the cultures.
Date: January 16, 1992
Creator: Barna, Valerie
System: The UNT Digital Library
Activated transport in AMTEC electrodes (open access)

Activated transport in AMTEC electrodes

Transport of alkali metal atoms through porous cathodes of alkali metal thermal-to-electric converter (AMTEC) cells is responsible for significant, reducible losses in the electrical performance of these cells. Experimental evidence for activated transport of metal atoms at grain surfaces and boundaries within some AMTEC electrodes has been derived from temperature dependent studies as well as from analysis of the detailed frequency dependence of ac impedance results for other electrodes, including thin, mature molybdenum electrodes which exhibit transport dominated by free molecular flow of sodium gas at low frequencies or dc conditions. Activated surface transport will almost always exist in parallel with free molecular flow transport, and the process of alkali atom adsorption/desorption from the electrode surface will invariably be part of the transport process, and possibly a dominant part in some cases. Little can be learned about the detailed mass transport process from the ac impedance or current voltage curves of an electrode at one set of operating parameters, because the transport process includes a number of important physical parameters that are not all uniquely determined by one experiment. The temperature dependence of diffusion coefficient of the alkali metal through the electrode in several cases provides an activation energy and …
Date: January 1, 1992
Creator: Williams, R.M.; Jeffries-Nakamura, B.; Ryan, M.A.; Underwood, M.L.; O'Connor, D. & Kikkert, S.
System: The UNT Digital Library
Deep crustal sediment study: Widespread Precambrian layered rocks (Sedimentary) beneath the US midcontinent (open access)

Deep crustal sediment study: Widespread Precambrian layered rocks (Sedimentary) beneath the US midcontinent

A thick sequence of layered rocks occurs beneath the Phanerozoic platform strata which blanket the US midcontinent. Observed on COCORP deep reflection data in southern Illinois and Indiana and in SW Oklahoma and adjacent Texas, this sequence is locally 1--3 times as thick as the overlying Paleozoic cover, but the origin of this sequence, its ultimate lateral extent, and resource potential are unknown. The objective of this project is to seek and reprocess seismic reflection data provided by industry from the US midcontinent and together with the COCORP deep reflection data and information from the scattered basement-penetrating drill holes, to begin to constrain the distribution, origin and evolution of this enigmatic layered sequence, particularly to evaluate if sedimentary material may be an important constituent (i.e., deep gas potential).
Date: January 1, 1992
Creator: Hauser, E. C.
System: The UNT Digital Library
Local S.A.R. chapter holds first officer installation (open access)

Local S.A.R. chapter holds first officer installation

Article in the Hamilton Harold-News containing information about the TXSSAR Leon River Valley Chapter's first officer installation in on January 8, 1991.
Date: January 19, 1991
Creator: unknown
System: The UNT Digital Library
Advances in high temperature components for AMTEC (alkali metal thermal-to-electric converter) (open access)

Advances in high temperature components for AMTEC (alkali metal thermal-to-electric converter)

Long lifetimes are required for AMTEC (or sodium heat engine) components for aerospace and terrestrial applications, and the high heat input temperature as well as the alkali metal liquid and vapor environment places unusual demands on the materials used to construct AMTEC devices. In addition, it is important to maximize device efficiency and power density, while maintaining a long life capability. In addition to the electrode, which must provide both efficient electrode kinetics, transport of the alkali metal, and low electrical resistance, other high temperature components of the cell face equally demanding requirements. The beta{double prime} alumina solid electrolyte (BASE), the seal between the BASE ceramic and its metallic transition to the hot alkali metal (liquid or vapor) source, and metallic components of the device are exposed to hot liquid alkali metal. Modification of AMTEC components may also be useful in optimizing the device for particular operating conditions. In particular, a potassium AMTEC may be expected to operate more efficiently at lower temperatures.
Date: January 1, 1991
Creator: Williams, R.M.; Jeffries-Nakamura, B.; Underwood, M.L.; Ryan, M.A.; O'Connor, D. & Kikkert, S.
System: The UNT Digital Library
Tritium technology programs in the United States (open access)

Tritium technology programs in the United States

Tritium technology in the United States has advanced considerably since the 1988 Tritium Conferences in Toronto. This advance has come in facilities, processing and safety related technologies and in an ever increasing commitment to compliance related issues. The major laboratories in the US tritium programs continue to be (Westinghouse) Savannah River Site, EG G Mound, Lawrence Livermore National Laboratory, Sandia National Laboratory and the Los Alamos National Laboratory. Each of these Laboratories have made some significant changes in their programs and/or facilities in the past four years. 11 refs, 1 fig.
Date: January 1, 1991
Creator: Anderson, J. L.
System: The UNT Digital Library