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Hydrogen Storage Properties of Magnesium Base Nanostructured Composite Materials

Description: In this work, nanostructured composite materials have been synthesized using the mechanical alloying process. The new materials produced have been investigated by X-ray diffraction (XRD), transition electron microscope (TEM), scanning electron microscope (SEM) and electron energy dispersion spectrum (EDS) for their phase compositions, crystal structure, grain size, particle morphology and the distribution of catalyst element. Hydrogen storage capacities and the hydriding-dehydriding kinetics of… more
Date: April 30, 2004
Creator: AU, M
Partner: UNT Libraries Government Documents Department
open access

Important aspects of radiation shielding for fusion reactor tokamaks

Description: Radiation shielding is a key subsystem in tokamak reactors. Design of this shield must evolve from economic and technological trade-off studies that account for the strong interrelations among the various components of the reactor system. These trade-offs are examined for the bulk shield on the inner side of the torus and for the special shields of major penetrations. Results derived are applicable for a large class of tokamak-type reactors.
Date: April 30, 1977
Creator: Abdou, M. A.
Partner: UNT Libraries Government Documents Department
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[RE: Extended Stays in Santa Barbara]

Description: A memo from Julie Abel, program associate for the Getty Center for Education in the Arts, to the Regional Institute Directors, Sheila Brown, Maggie DiBlasio, Phyllis Scott Johnson, Jessie Lovano-Kerr, Bill McCarter, Nancy Roucher, Brent Wilson, Jack Davis, Edith Curtis Johnson, Anne Lindsey, Nancy MacGregor, Tom McMullen, Frances Thurber, and Joyce Wright. The memo is in regards to the Four Season's Biltmore agreeing to extend the center's rate if they directors wish to stay before or after the… more
Date: April 30, 1992
Creator: Abel, Julie
Partner: UNT Libraries Special Collections
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Analysis of Homogeneous Charge Compression Ignition (HCCI) Engines for Cogeneration Applications

Description: This paper presents an evaluation of the applicability of Homogeneous Charge Compression Ignition Engines (HCCI) for small-scale cogeneration (less than 1 MWe) in comparison to five previously analyzed prime movers. The five comparator prime movers include stoichiometric spark-ignited (SI) engines, lean burn SI engines, diesel engines, microturbines and fuel cells. The investigated option, HCCI engines, is a relatively new type of engine that has some fundamental differences with respect to oth… more
Date: April 30, 2004
Creator: Aceves, S; Martinez-Frias, J & Reistad, G
Partner: UNT Libraries Government Documents Department
open access

Final Report: Theoretical Studies on Radiation-Induced Transformations in Nucleic Acid Bases, May 1, 1993 - April 30, 1996

Description: In the proposal we identified several elemental molecular properties related to the effects observed in genetic material exposed to ionizing irradiation, and we studied them by means of the ab-initio quantum chemistry. The chemistry of irradiation is complex and biological consequences are significant. This includes cell death, mutations, carcinogenic transformations, etc. In the proposal we theoretically modeled several elemental processes related to the radiolysis of components of the nucleic… more
Date: April 30, 1996
Creator: Adamowicz, Ludwik
Partner: UNT Libraries Government Documents Department
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Parametric electric motor study

Description: Technology for the axial gap motor was developed by DOE with an investment of approximately $15 million. This development effort is for motor technologies of high power density and high efficiency. Such motors that are also small and light-weight are not available on the commercial market because high-power motors have typically been used in large industrial applications where small size and light weight are not requirements. AC Delco has been developing motors since 1918 and is interested in l… more
Date: April 30, 1995
Creator: Adams, D. & Stahura, D.
Partner: UNT Libraries Government Documents Department
open access

Power generation systems for NOx reduction. CRADA final report for CRADA Number Y-1292-0111

Description: The Cooperative Research and Development Agreement (CRADA) No. Y1292-0111, between Allison Gas Turbine Division of General Motors Corporation and Lockheed Martin Energy Systems, under contract to the US Department of Energy, is entitled ``Power Generation Systems for NOx Reduction``. The objective of this effort was to design, develop, and demonstrate an integrated turbine genset suitable for high efficiency power generation requirements. The result of this effort would have been prototype gene… more
Date: April 30, 1996
Creator: Adams, D.J. & Berenyi, S.G.
Partner: UNT Libraries Government Documents Department
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Solid-State Fault Current Limiter Development : Design and Testing Update of a 15kV SSCL Power Stack

Description: ABSTRACT The Solid-State Fault Current Limiter (SSCL) is a promising technology that can be applied to utility power delivery systems to address the problem of increasing fault currents associated with load growth. As demand continues to grow, more power is added to utility system either by increasing generator capacity or by adding distributed generators, resulting in higher available fault currents, often beyond the capabilities of the present infrastructure. The SSCL is power-electronics bas… more
Date: April 30, 2012
Creator: Adapa, Dr. Ram & Piccone, Mr. Dante
Partner: UNT Libraries Government Documents Department
open access

PFP solution stabilization

Description: This Functional Design Criteria (FDC) addresses remediation of the plutonium-bearing solutions currently in inventory at the Plutonium Finishing Plant (PFP). The recommendation from the Environmental Impact Statement (EIS) is that the solutions be treated thermally and stabilized as a solid for long term storage. For solutions which are not discardable, the baseline plan is to utilize a denitration process to stabilize the solutions prior to packaging for storage.
Date: April 30, 1996
Creator: Aftanas, B.L.
Partner: UNT Libraries Government Documents Department
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Flow Transients in CLIRA and TSMDA

Description: From joint meeting of the American Nuclear Society and the Atomic Industrial Forum and Nuclear Energy Exhibition; San Francisco, California, USA (11 Nov 1973). The capability of the Closed Loop In-Reactor Assembly (CLIRA) in FFTF to accommodate various postulated events is demonstrated. These events include, in their order of severity, (a) flow coastdown, (b) inlet pipe break, and (c) inlet blockage. All of these accidents are extremely unlikely, nonetheless the consequences of even the most se… more
Date: April 30, 1974
Creator: Agrawal, A. K.; Hoppner, G.; Coffield, R. D. & Bradbury, P.
Partner: UNT Libraries Government Documents Department
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Hydrogen Storage in metal-modified single-walled carbon nanotubes

Description: It has been known for over thirty years that potassium-intercalated graphites can readily adsorb and desorb hydrogen at {approx}1 wt% at 77 K. These levels are much higher than can be attained in pure graphite, owing to a larger thermodynamic enthalpy of adsorption. This increased enthalpy may allow hydrogen sorption at higher temperatures. Potassium has other beneficial effects that enable the design of a new material: (a) Increased adsorption enthalpy in potassium-intercalated graphite compar… more
Date: April 30, 2004
Creator: Ahn, Dr.
Partner: UNT Libraries Government Documents Department
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Project Work Plan 100-N Area Strontium-90 Treatability Demonstration Project: Phytoremediation Along the 100-N Columbia River Riparian Zone

Description: The 100-N Area Innovative Treatment and Remediation Demonstration (ITRD) identified phyto¬remediation as a potential technology both for the removal of 90Sr from the soil of the riparian zone and as a filter for groundwater along the Columbia River. Recent greenhouse and growth chamber studies have demonstrated the viability of phytoextraction to remove 90Sr from this area’s soil/water; in conjunction with monitored natural attenuation and an apatite barrier the process would make an effective … more
Date: April 30, 2006
Creator: Ainsworth, Calvin C.
Partner: UNT Libraries Government Documents Department
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Excitation of the synchro-betatron resonances by the beam-beam interaction in the Tevatron Run II lattice

Description: Effect of different mechanisms of the synchro-betatron coupling (dispersion function at the interaction points, chromatic tune modulation, finite bunch length) on the p-bar stability in the Tevatron Run II configuration is considered. It is found that the long-range interactions in the presence of large dispersion produce large contribution ({approximately}10) to the chromaticity of the betatron tunes. This chromaticity, in its turn, can give rise to multiple synchrotron satellites of the betat… more
Date: April 30, 2001
Creator: Alexahin, Yuri I.
Partner: UNT Libraries Government Documents Department
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Tanks Focus Area Site Needs Assessment - FY 2001

Description: The TFA uses a systematic process for developing its annual program that draws from the tanks science and technology development needs expressed by the five DOE tank waste sites. TFA's annual program development process is iterative and involves the following steps: Collection of site needs; Needs analysis; Development of technical responses and initial prioritization; Refinement of the program for the next fiscal year; Formulation of the Corporate Review Budget (CRB); Preparation of Program Ex… more
Date: April 30, 2001
Creator: Allen, Bob W; Josephson, Gary B; Westsik, Joseph H & Nickola, Cheryl L
Partner: UNT Libraries Government Documents Department
open access

Tanks Focus Area Site Needs Assessment - FY 2001

Description: The TFA uses a systematic process for developing its annual program that draws from the tanks science and technology development needs expressed by the five DOE tank waste sites. TFA's annual program development process is iterative and involves the following steps: Collection of site needs; Needs analysis; Development of technical responses and initial prioritization; Refinement of the program for the next fiscal year; Formulation of the Corporate Review Budget (CRB); Preparation of Program Ex… more
Date: April 30, 2001
Creator: Allen, Robert W.; Josephson, Gary B.; Westsik, Joseph H. & Nickola, Cheryl L.
Partner: UNT Libraries Government Documents Department
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