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Sputter deposited beryllium fuel capsules for NIF

Description: The objective of our effort is to systematically study the properties of films produced under different conditions, with an emphasis on improving surface morphology and microstructure while studying permeability and capsule strength. We have made extensive use of atomic force and electron microscopy to determine the microstructure of the films, along with composition probes (mainly x-ray fluorescence) to quantify the chemical structure. Our studies can be roughly divided into three categories. … more
Date: February 12, 1998
Creator: Alford, C.S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Experimental investigation of effects of moderate sideslip on the flow fields near a 45 degree swept-wing-fuselage combination at low speed

Description: The flow fields near a 45 degree swept-wing-fuselage combination at moderate angles of sideslip (plus-or-minus 8 degrees), as determined experimentally at low speed, are presented as variations with chordwise distance for various spanwise and vertical locations and angles of attack. The results indicated that for positions close to the fuselage (on and near the plane of symmetry) changes in the angle of sideslip caused large changes in the flow-field characteristics and particularly in the loca… more
Date: July 12, 1957
Creator: Alford, William J., Jr. & King, Thomas J., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Plasma experiments with 1. 06. mu. m lasers at Lawrence Livermore Laboratory

Description: Recent laser fusion experiments at Lawrence Livermore Laboratory have provided basic data concerning laser beam propagation and absorption in high temperature plasmas, electron energy transport processes that transfer the absorbed laser energy to the high density ablation region, the general fluid dynamic expansion and compression of the heated plasma, and the processes responsible for the production of 14 MeV neutrons during implosion experiments. This paper reports results related to the prop… more
Date: March 12, 1976
Creator: Alhlstrom, H. G.; Holzrichter, J. F.; Haas, R. A.; Storm, E. K.; Manes, K. R.; Phillion, D. W. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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On the Significance of the Contribution of Multiple-Electron Capture Processes to Cometary X-Ray Emission

Description: We report laboratory studies of the role played by multiple-electron capture (MEC) in solar wind induced cometary X-ray emission. Collisions of Ne{sup 10+} with He, Ne, Ar, CO, and CO{sub 2} have been investigated by means of the traditional singles X-ray spectroscopy in addition to the triple-coincidence measurements of X-rays, scattered projectile, and target recoil ions for the atomic targets. The coincidence measurements enable the reduction of the singles X-ray spectra into partial spectra… more
Date: May 12, 2005
Creator: Ali, R.; Neill, P. A.; Beiersdorfer, P.; Harris, C. L.; Rakovi?, M. J.; Wang, J. G. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Extraction of tritium from liquid lithium by permeation

Description: This paper assesses a method for extracting tritium from liquid lithium for specific application to the conceptual laser fusion reactor that uses a continuous lithium ''waterfall.'' The tritium diffuses through a refractory metal that contains a getter and is then stored in a hydride-forming alloy. There are various uncertainties with this method including helium-4 extraction, unknown impurities that may accumulate in liquid lithium, the effects of these impurities on tritium separation, and th… more
Date: April 12, 1978
Creator: Alire, R.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Liquid film/polymer interfaces

Description: The objectives were: (1) Through experimental studies, advance the fundamental understanding of the principles that govern adsorption and wetting phenomena at polymer and organic surfaces. (2) Establish a firm scientific basis for improving the design of coatings for metal fin cooling surfaces used to control the wetting of water condensate for optimum energy efficiency. Several important findings were: (1) water adsorbed at hydrophobic surfaces has a liquid-like structure, in contrast to the g… more
Date: June 12, 2003
Creator: Allara, David L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Scaling Breakdown: A Signature of Aging

Description: In this article, the authors prove that the Lévy walk is characterized by bilinear scaling. This effect mirrors the existence of a form of aging that does not require the adoption of nonstationary conditions.
Date: July 12, 2002
Creator: Allegrini, Paolo; Bellazzini, Jacopo; Bramanti, G.; Ignaccolo, Massimiliano; Grigolini, Paolo & Yang, J.
Item Type: Refine your search to only Article
Partner: UNT College of Arts and Sciences
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Completion Report An Automatic Fuel Element Stamping Machine

Description: This document will be concerned with the design, operation and maintenance of an automatic fuel element stamping machine. In order to take advantage of automatic unloading and length checking at the Acme-Gridley lathes in the 313 Building, automatic stamping of fuel elements is desirable. This, along with the need for a permanent canning line identification, resulted in a request for a machine to automatically stamp HAPO fuel elements on a production basis.
Date: January 12, 1960
Creator: Allen, C. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Energy storage and power conditioning system for the Shiva laser

Description: An optimal energy delivery system for the world's largest glass laser system has been designed based on computer modeling and operation of laser hardware. Components of the system have been tested on operating lasers at LLL. The Shiva system is now under construction and will be completed in 1977. The energy supply described here will provide cost-effective, reliable power and facilitate the gathering of data in pursuit of controlled thermonuclear reactions. (auth)
Date: November 12, 1975
Creator: Allen, G. R.; Gagnon, W. L.; Rupert, P. R. & Trenholme, J. B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Laser Ion Acceleration from the Interaction of Ultra-Intense laser Pulse with thi foils

Description: The discovery that ultra-intense laser pulses (I > 10{sup 18} W/cm{sup 2}) can produce short pulse, high energy proton beams has renewed interest in the fundamental mechanisms that govern particle acceleration from laser-solid interactions. Experiments have shown that protons present as hydrocarbon contaminants on laser targets can be accelerated up to energies > 50 MeV. Different theoretical models that explain the observed results have been proposed. One model describes a front-surface … more
Date: March 12, 2004
Creator: Allen, M
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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Energy savings by means of fuel cell electrodes in electro-chemical industries. Progress report, August 1, 1979-October 31, 1979

Description: Initial efforts in studies of the effects of fuel cell electrodes on energy savings in electrochemical processes have been directed toward assembling test hardware and evaluation of a new zinc plant feed. A complete chemical analysis of the feed is reported. Utilizing the 2'' x 2'' (active electrode area) hardware and techniques developed under Contract No. ET-78-C-02-4881, 6 h zinc electrowinning tests demonstrated a current efficiency of greater than 90% with an energy consumption of 0.54 to … more
Date: December 12, 1979
Creator: Allen, R.J.; Juda, W. & Lindstrom, R.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Higher temperature reactor materials workshop sponsored by the Department of Energy Office of Nuclear Energy, Science, and Technology (NE) and the Office of Basic Energy Sciences (BES).

Description: On March 18-21, 2002, the Department of Energy, Office of Nuclear Energy, Science, and Technology (NE) and the Office of Basic Energy Sciences (BES) sponsored a workshop to identify needs and opportunities for materials research aimed at performance improvements of structural materials in higher temperature reactors. The workshop focused discussion around the reactor concepts proposed as part of the Generation IV Nuclear Energy System Roadmap. The goal of the Generation IV initiative is to make… more
Date: August 12, 2002
Creator: Allen, T.; Bruemmer, S.; Kassner, M.; Odette, R.; Stoller, R.; Was, G. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Resonance modes in moiré photonic patterns for twistoptics

Description: Article studying twistoptics for manipulating optical properties in twisted moiré photonic patterns without physical rotations. The presented approach can lead toward the study of twistoptics for the manipulating of optical properties in moiré patterns with different twist angles.
Date: April 12, 2021
Creator: Alnasser, Khadijah; Kamau, Steve; Cui, Jingbiao & Lin, Yuankun
Item Type: Refine your search to only Article
Partner: University of North Texas
open access

Disposal of Surplus Weapons Grade Plutonium

Description: The Office of Fissile Materials Disposition is responsible for disposing of inventories of surplus US weapons-usable plutonium and highly enriched uranium as well as providing, technical support for, and ultimate implementation of, efforts to obtain reciprocal disposition of surplus Russian plutonium. On January 4, 2000, the Department of Energy issued a Record of Decision to dispose of up to 50 metric tons of surplus weapons-grade plutonium using two methods. Up to 17 metric tons of surplus pl… more
Date: September 12, 2000
Creator: Alsaed, H. & Gottlieb, P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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STUDY OF RESONANCES IN THE Σ-π SYSTEM

Description: In order to study resonances in the {Sigma}-{pi} system, we have analyzed reactions in which a {Sigma} hyperon and two or three pions are produced in K{sup -}-p interactions at 1.22 {+-} 0.040 and 1.51 {+-} 0.050 GeV/c incident K{sup -} momentum (i. e., 1895 and 2025 MeV center-of-mass energy), using the Lawrence Radiation Laboratory's 72-in. hydrogen bubble chamber.
Date: June 12, 1962
Creator: Alston, Margaret H.; Alvarez, Luis W.; Ferro-Luzzi, Massimiliano; Rosenfeld, Arthur H..; Ticho, Harold K. & Wojcicki, Stanley G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Bioremediation of Petroleum Hydrocarbon-Contaminated Soils, Comprehensive Report

Description: The US Department of Energy and the Institute for Ecology of Industrial Areas, Katowice, Poland have been cooperating in the development and implementation of innovative environmental remediation technologies since 1995. U.S. experts worked in tandem with counterparts from the IETU and CZOR throughout this project to characterize, assess and subsequently, design, implement and monitor a bioremediation system.
Date: January 12, 2001
Creator: Altman, D. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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INTEGRATING P-WAVE AND S-WAVE SEISMIC DATA TO IMPROVE CHARACTERIZATION OF OIL RESERVOIRS

Description: During this period, the principal investigator wrote an abstract and research accomplishments which was published in the journal of the historically black colleges and universities and other minority institutions contract review meeting of June 2003. Interpretations and analysis of data from the study area shows that incident full-elastic seismic wavefield reflected four different wave modes, P, fast-S (SH) , slow-S (SV) and C. These four wave modes image unique geologic stratigraphy and facies… more
Date: January 12, 2004
Creator: Aluka, Innocent J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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In-duct countermeasures for reducing fire-generated-smoke-aerosol exposure to HEPA filters. [High efficiency particulate aerosol]

Description: An experimental program was conducted to assess the endurance and lifetime of HEPA filters exposed to fire-generated aerosols, and to reduce the aerosol exposure by installing engineering countermeasures in the duct between the fire source and HEPA filters. Large cribs of wood and other potential fuels of interest were ''forcefully burned'' in a partially ventilated enclosure. In a ''forceful burn'' the crib of fuel is continuously exposed to an energetic premixed methane flame during the entir… more
Date: July 12, 1978
Creator: Alvares, N. J.; Beason, D. G. & Ford, H. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Examining Technology, Structure and Identity During an Enterprise System Implementation

Description: This paper presents a longitudinal study of an Enterprise System (ES) implementation by critically examining the discursive context in which an ES implementation unfolds. The findings show that users strongly supported the ES in the earlier stage of implementation when the technology was an imaginary phenomenon. However, in later stages, when the technology is in use, user support was not consistent. In this phase the ES produces loss of control and an inability to function as an arbiter of fai… more
Date: November 12, 2008
Creator: Alvarez, Rosio
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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It's On: Early Interpretations of ATLAS Results in Jets and Missing Energy

Description: The first search for supersymmetry from ATLAS with 70 nb{sup -1} of integrated luminosity extends the Tevatron's reach for colored particles that decay into jets plus missing transverse energy. For gluinos that decay directly or through a one step cascade into the LSP and two jets, the mass range m{sub {bar g}} {le} 205 GeV is disfavored by the ATLAS searches, regardless of the mass of the LSP. In some cases the coverage extends up to m{sub {bar g}} {approx_equal} 295 GeV, already surpassing th… more
Date: August 12, 2011
Creator: Alves, Daniele S. M.; Izaguirre, Eder & Wacker, Jay G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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