Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

The objective of this multiyear effort was the development, fabrication and testing of a zirconia oxygen production module capable of delivering approximately 100 liters/minute (LPM) of oxygen. The work discussed in this report consists of development and improvement of the zirconia cell along with manufacture of cell components, preliminary design of the final plant, additional economic analysis and industrial participation. (VC)

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

The overall objective of the Direct Conversion Technology task is to develop an experimentally verified technology base for promising direct conversion systems that have potential application for energy conservation in the end-use sectors. Initially, two systems were selected for exploratory research and advanced development. These are Alkali Metal Thermal-to-Electric Converter (AMTEC) and Two-Phase Liquid Metal MD Generator (LMMHD). This report describes progress that has been made during the first six months of 1992 on research activities associated with these two systems. (GHH)

This decorative tree is assembled from metal shopping carts and large Christmas tree ornaments. It is about forty feet tall and is an annual tradition which began in 1996. The piece is presented in the Edgemar Complex, Santa Monica, California, courtyard during the Christmas season.

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Evelyn and Ralph Downs try to catch the attention of comedian Argus Hamilton."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Argus Hamilton, left, shares a laugh with Randy Rognas."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "UCLA's Yvonne Gutierrez takes a swing Sunday."

Photograph used for a newspaper owned by the Oklahoma Publishing Company.

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Mary Duffe presents a framed certificate to Argus Hamilton III at the Regents Council of the Daughters of the American Revolution luncheon."

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Versatile actor Dorian Harewood (left) is the voice behind War Machine/Jim Rhodes (right) in the new , nationally syndicated animated series, "Iron Man," that premieres as part of the Marvel Action Hour this September."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Jean Hayes of Oklahoma City received the Visiting Nursing Association of America's 1992 Volunteer of the Year Award for individual care providers at an annual meeting in Los Angeles."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "The Oklahoman-born comedian and columnist has studied Rogers since he was a college history major."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "UCLA Pitcher B'Ann Burns (above) combined with Dee Dee Welman on a no-hitter to eliminate Illinois-Chicago early Saturday."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Garth turns pro."

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, covering a news story about the Dallas Cowboy cheerleaders arriving in Pasadena for Super Bowl XXVII. Footage includes the squad shooting promotional spots and arriving via bus. The story aired at 10 P.M.

Video footage from the KXAS-TV television station in Fort Worth, Texas, covering a news story.

Video footage from the KXAS-TV television station in Fort Worth, Texas, covering a news story.

The overall objective of the Direct Conversion Technology task is to develop an experimentally verified technology base for promising direct conversion systems that have potential application for energy conservation in the end-use sectors. This report contains progress of research on the Alkali Metal Thermal-to-Electric Converter (AMTEC) and on the Two-Phase Liquid-Metal MHD Electrical Generator (LMMHD) for the period January 1, 1991 through December 31, 1991. Research on AMTEC and on LMMHD was initiated during October 1987. Reports prepared on previous occasions (Refs. 1--5) contain descriptive and performance discussions of the following direct conversion concepts: thermoelectric, pyroelectric, thermionic, thermophotovoltaic, thermoacoustic, thermomagnetic, thermoelastic (Nitionol heat engine); and also, more complete descriptive discussions of AMTEC and LMMHD systems.

Newspaper clipping of a section of the May 1990 issue of The Miami Herald. Articles about the WASPs service in World War 2, why Maria Muniz joined the Marine Corps, two nurses who served in the Vietnam War, and more are included.

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.