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CHAPTER 7. BERYLLIUM ANALYSIS BY NON-PLASMA BASED METHODS (open access)

CHAPTER 7. BERYLLIUM ANALYSIS BY NON-PLASMA BASED METHODS

The most common method of analysis for beryllium is inductively coupled plasma atomic emission spectrometry (ICP-AES). This method, along with inductively coupled plasma mass spectrometry (ICP-MS), is discussed in Chapter 6. However, other methods exist and have been used for different applications. These methods include spectroscopic, chromatographic, colorimetric, and electrochemical. This chapter provides an overview of beryllium analysis methods other than plasma spectrometry (inductively coupled plasma atomic emission spectrometry or mass spectrometry). The basic methods, detection limits and interferences are described. Specific applications from the literature are also presented.
Date: April 20, 2009
Creator: Ekechukwu, A
System: The UNT Digital Library
Unmanned Systems Integrated Roadmap: Fiscal Years 2009-2034 (open access)

Unmanned Systems Integrated Roadmap: Fiscal Years 2009-2034

Biennial report describing progress and changes in unmanned systems technology used by the military, with a 25-year strategic plan to describe goals for the continued development, production, testing, training, operation, and sustainment of the technologies. "This is the second edition of the integrated Office of the Secretary of Defense Unmanned Systems Roadmap (2009-2034) that includes Unmanned Aircraft systems, Unmanned Ground systems and Unmanned Maritime Systems. This Roadmap provides Defense-wide vision for unmanned systems and related technologies" (p. iii).
Date: April 20, 2009
Creator: United States. Department of Defense.
System: The UNT Digital Library
Chapter 10: BlueGene/Q Sequoia and Mira (open access)

Chapter 10: BlueGene/Q Sequoia and Mira

None
Date: April 20, 2012
Creator: Vranas, P.
System: The UNT Digital Library
Oral History Interview with Marcus Valenta, April 20, 1978 (open access)

Oral History Interview with Marcus Valenta, April 20, 1978

Interview with Marcus Valenta, Catholic chaplain for the U.S. Army. The interview includes Valenta's personal experiences at the post chapel at Schofield Barracks during the Japanese attack at Pearl Harbor on December 7, 1941.
Date: April 20, 1978
Creator: Marcello, Ronald E. & Valenta, Marcus
System: The UNT Digital Library
Hydrogen Outgassing from Lithium Hydride (open access)

Hydrogen Outgassing from Lithium Hydride

Lithium hydride is a nuclear material with a great affinity for moisture. As a result of exposure to water vapor during machining, transportation, storage and assembly, a corrosion layer (oxide and/or hydroxide) always forms on the surface of lithium hydride resulting in the release of hydrogen gas. Thermodynamically, lithium hydride, lithium oxide and lithium hydroxide are all stable. However, lithium hydroxides formed near the lithium hydride substrate (interface hydroxide) and near the sample/vacuum interface (surface hydroxide) are much less thermally stable than their bulk counterpart. In a dry environment, the interface/surface hydroxides slowly degenerate over many years/decades at room temperature into lithium oxide, releasing water vapor and ultimately hydrogen gas through reaction of the water vapor with the lithium hydride substrate. This outgassing can potentially cause metal hydriding and/or compatibility issues elsewhere in the device. In this chapter, the morphology and the chemistry of the corrosion layer grown on lithium hydride (and in some cases, its isotopic cousin, lithium deuteride) as a result of exposure to moisture are investigated. The hydrogen outgassing processes associated with the formation and subsequent degeneration of this corrosion layer are described. Experimental techniques to measure the hydrogen outgassing kinetics from lithium hydride and methods employing …
Date: April 20, 2006
Creator: Dinh, L. N.; Schildbach, M. A.; Smith, R. A.; Balazs, B. & McLean, W., II
System: The UNT Digital Library
Oral History Interview with Stephen E. Van Nostrand, April 20, 1987 (open access)

Oral History Interview with Stephen E. Van Nostrand, April 20, 1987

Interview with Stephen E. Van Nostrand, former executive at Caltex Petroleum Corporation. The interview includes Van Nostrand's personal experiences about service during World War II, employment with Caltex in China, the formation of Ryuku Oil Corporation, and holding various positions within Caltex. Van Nostrand talks about joint ventures with Nippon Oil Company and Koa Oil Company, increasing the refining capacity from 60,000 bbls. to 900,000 bbls. per day, crude oil contracts, the Nippon Petroleum Refining Company, refinery rehabilitation and construction, his role in Caltex operations in Japan, the Nippon Oil Staging Terminal Company, relations between Caltex (Japan) and New York headquarters, OPEC and its effects upon Caltex, character sketches of Neal Lilley, Alec Singleton, and James Voss, and various Japanese oil executives. The interview includes a personal history of S. Nomura.
Date: April 20, 1987
Creator: Marcello, Ronald E. & Van Nostrand, Stephen E.
System: The UNT Digital Library

Oral History Interview with Ali H. Heidari, April 20, 2011

Access: Use of this item is restricted to the UNT Community
Interview with Ali Heidari, an Iranian immigrant, realtor, and restaurateur from Tehran. Heidari discusses growing up, education, moving to Athens, Texas in 1975, attending UT Arlington, getting into real estate, his family, his reaction to the 1979-81 hostage crisis, experiences as an immigrant in DFW, and his thoughts on American youth and culture.
Date: April 20, 2011
Creator: Nabors, Daniel J. & Heidari, Ali H.
System: The UNT Digital Library

Oral History Interview with Alma Clark, April 2017

Access: Use of this item is restricted to the UNT Community
Audio log for a recording of an interview with Alma Clark regarding her experiences with the Denton Women's Interracial Fellowship. She discusses her childhood and background, living in a segregated neighborhood in Austin, interracial relationships, moving to Denton and Quakertown history, and her involvement with the Denton Women's Interracial Fellowship.
Date: April 20, 2017
Creator: Ceballos, Nathan & Clark, Alma
System: The UNT Digital Library