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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:
July 1, 1992
Creator:
Williams, R. M.; Jeffries-Nakamura, B.; Ryan, M. A.; Underwood, M. L.; O`Connor, D. & Kikkert, S.
Object Type:
Article
System:
The UNT Digital Library
Aeronautics Star, Volume 4, Number 4, July/August 2003
Bimonthly newsletter published for employees of Lockheed Martin Aeronautics Co. containing work-related information, updates about employees, and other news.
Date:
July 2003
Creator:
Lockheed Martin Astronautics (Firm)
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Aeronautics Star, Volume 6, Number 3, July/August 2004
Bimonthly newsletter published for employees of Lockheed Martin Aeronautics Co. containing work-related information, updates about employees, and other news.
Date:
July 2004
Creator:
Lockheed Martin Astronautics Corporation
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Agreement for Dissolution of Partnership
An agreement of dissolution between Gayle Snell and Robert Schaefer for their company Schell Air-Photo Service, describing specific financial arrangements and rights between them and signed by a Los Angeles County notary.
Date:
July 21, 1950
Creator:
Snell, Gayle M. & Schaefer, Robert C.
Object Type:
Legal Document
System:
The Portal to Texas History
[Check receipt for Robert Schaefer and Gayle Snell]
Receipt for a check of $25 paid to Robert Schaefer and Gayle Snell, who owned a aerial photography business, by the California State Board of Equalization.
Date:
July 25, 1950
Creator:
State Board of Equalization
Object Type:
Text
System:
The Portal to Texas History
[Commercial Script, First Draft, Joe Velez - July 29, 1977]
First draft of a commercial script for Joe Velez, dated July 29, 1977. The commercial, funded by Adolph Coors Company, declares LULAC's support for Coors. The commercial was to air on KWKW radio in Los Angeles.
Date:
July 29, 1977
Creator:
Velez, Joe
Object Type:
Script
System:
The Portal to Texas History
Convair Supervisory Newsletter, Number 99, July 1, 1953
Weekly newsletter written for supervisors working at the Convair Division in Fort Worth containing news about events and activities, workplace reminders, and other relevant information.
Date:
July 1, 1953
Creator:
Hicks, M. L.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Convair Supervisory Newsletter, Number 101, July 15, 1953
Weekly newsletter written for supervisors working at the Convair Division in Fort Worth containing news about events and activities, workplace reminders, and other relevant information.
Date:
July 15, 1953
Creator:
Esenwein, August C.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Convair Supervisory Newsletter, Number 316, July 24, 1957
Weekly newsletter written for supervisors working at the Convair Division in Fort Worth containing news about events and activities, workplace reminders, and other relevant information.
Date:
July 24, 1957
Creator:
Esenwein, August C.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Convairiety, Volume 5, Number 14, July 2, 1952
Bimonthly newsletter published for employees of the Convair Division in Fort Worth containing work-related information, updates about employees, and other news.
Date:
July 2, 1952
Creator:
Consolidated Vultee Aircraft Corporation
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Convairiety, Volume 5, Number 15, July 16, 1952
Bimonthly newsletter published for employees of the Convair Division in Fort Worth containing work-related information, updates about employees, and other news.
Date:
July 16, 1952
Creator:
Consolidated Vultee Aircraft Corporation
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Convairiety, Volume 5, Number 16, July 30, 1952
Bimonthly newsletter published for employees of the Convair Division in Fort Worth containing work-related information, updates about employees, and other news.
Date:
July 30, 1952
Creator:
Consolidated Vultee Aircraft Corporation
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Convairiety, Volume 6, Number 13, July 1, 1953
Bimonthly newsletter published for employees of the Convair Division in Fort Worth containing work-related information, updates about employees, and other news.
Date:
July 1, 1953
Creator:
Consolidated Vultee Aircraft Corporation
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Convairiety, Volume 6, Number 14, July 15, 1953
Bimonthly newsletter published for employees of the Convair Division in Fort Worth containing work-related information, updates about employees, and other news.
Date:
July 15, 1953
Creator:
Consolidated Vultee Aircraft Corporation
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Convairiety, Volume 6, Number 15, July 29, 1953
Bimonthly newsletter published for employees of the Convair Division in Fort Worth containing work-related information, updates about employees, and other news.
Date:
July 29, 1953
Creator:
Consolidated Vultee Aircraft Corporation
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Convairiety, Volume 10, Number 15, July 24, 1957
Bimonthly newsletter published for employees of the Convair Division in Fort Worth containing work-related information, updates about employees, and other news.
Date:
July 24, 1957
Creator:
General Dynamics Corporation. Convair Division.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Convairiety, Volume 12, Number 14, July 8, 1959
Bimonthly newsletter published for employees of the Convair Division in Fort Worth containing work-related information, updates about employees, and other news.
Date:
July 8, 1959
Creator:
General Dynamics Corporation. Convair Division.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Convairiety, Volume 12, Number 15, July 22, 1959
Bimonthly newsletter published for employees of the Convair Division in Fort Worth containing work-related information, updates about employees, and other news.
Date:
July 22, 1959
Creator:
General Dynamics Corporation. Convair Division.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Convairiety, Volume 13, Number 14, July 6, 1960
Bimonthly newsletter published for employees of the Convair Division in Fort Worth containing work-related information, updates about employees, and other news.
Date:
July 6, 1960
Creator:
General Dynamics Corporation. Convair Division.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Convairiety, Volume 13, Number 15, July 20, 1960
Bimonthly newsletter published for employees of the Convair Division in Fort Worth containing work-related information, updates about employees, and other news.
Date:
July 20, 1960
Creator:
General Dynamics Corporation. Convair Division.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Direct Conversion Technology
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)
Date:
July 1, 1992
Creator:
Back, L.H.; Fabris, G. & Ryan, M.A.
Object Type:
Report
System:
The UNT Digital Library
Direct Conversion Technology. Progress report, January 1, 1992--June 30, 1992
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)
Date:
July 1, 1992
Creator:
Back, L. H.; Fabris, G. & Ryan, M. A.
Object Type:
Report
System:
The UNT Digital Library
The Earps Invade Southern California: Bootlegging Los Angeles, Santa Monica, and the Old Soldiers’ Home
Access:
Use of this item is restricted to the UNT Community
Most readers of the Wild West know Wyatt Earp, Virgil Earp, and Morgan Earp for the famous shootout on the streets of Tombstone, Arizona. But few know the later years of the close-knit Earp family, which revolved around patriarch Nicholas Earp, and their last push at a major monetary coup in Los Angeles. By 1900 a newly established Old Soldiers’ Home was in place at Sawtelle (between Santa Monica and Los Angeles), with thousands of veterans earning monthly pensions, but in an environment where alcohol was prohibited. Enter the Earps and their “blind pig” (illicit alcohol sales) scheme. Two of the Earps, Nicholas and son Newton, were enrolled in the Soldiers’ Home, and Newton’s far more famous half-brothers Wyatt and Virgil showed up from time to time, but the star of the operation was older brother James. Booze would flow, the pension money would be “dispersed about,” and jails were sometimes filled, as the Earps and several other men on the make competed for the veterans’ money. We are also reintroduced to Old West figures such as “Gunfighter Surgeon” Dr. George Goodfellow, “Silver Tongued Orator” Thomas Fitch, millionaire George Hearst, detective J.V. Brighton, Lucky Baldwin, and many other well-known westerners …
Date:
July 15, 2020
Creator:
Chaput, Donald & De Haas, David D., 1956-
Object Type:
Book
System:
The UNT Digital Library
Four absolute cavity radiometer (pyrheliometer) intercomparisons at New River, Arizona: radiometer standards
Four detailed intercomparisons were made for a number of models of cavity-type self-calibrating radiometers (pyrheliometers). Each intercomparison consisted of simultaneous readings of pyrheliometers at 30-second intervals in runs of 10 minutes, with at least 15 runs per intercomparison. Twenty-seven instruments were in at least one intercomparison, and five were in all four. Summarized results and all raw data are provided from the intercomparisons.
Date:
July 1, 1981
Creator:
Estey, R.S. & Seaman, C.H.
Object Type:
Report
System:
The UNT Digital Library