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International conference on bone mineral measurement, October 12--13, 1973, Chicago, Illinois

Description: From international conference on bone mineral measurement; Chicago, Illinois, USA (12 Oct 1973). Abstracts of papers presented at the international conference on bone mineral measurement are presented. The papers were grouped into two sessions: a physical session including papers on measuring techniques, errors, interpretation and correlations, dual photon techniques, and data handling and exchange; a biomedical session including papers on bone disease, osteoporosis, normative data, non-disease… more
Date: December 31, 1973
Partner: UNT Libraries Government Documents Department
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Role of statistical linearization in the solution of nonlinear stochastic equations

Description: The solution of a generalized Langevin equation is referred to as a stochastic process. If the external forcing function is Gaussian white noise, the forward Kolmogarov equation yields the transition probability density function. Nonlinear problems must be handled by approximation procedures e.g., perturbation theories, eigenfunction expansions, and nonlinear optimization procedures. After some comments on the first two of these, attention is directed to the third, and the method of statistical… more
Date: August 31, 1977
Creator: Budgor, Aaron B.
Partner: UNT Libraries Government Documents Department
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ICF drivers: a comparison of some new entries and old standbys. Revision 1

Description: There has been a great deal of progress in recent years on the development of solid state and KrF lasers, light ion diodes, and heavy ion accelerators for use as drivers in inertial confinement fusion (ICF) facilities. Two relatively new entries in the ICF driver derby are the free electron laser (FEL) and the compact torus (CT). The status and remaining technological challenges of each potential driver are described. The author discusses driver performance criteria for various reactor applicat… more
Date: July 31, 1986
Creator: Hogan, W.J.
Partner: UNT Libraries Government Documents Department
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Progress of the LASL dry hot rock geothermal energy project

Description: Under sponsorship of the Division of Applied Technology of AEC, Los Alamos Scientific Laboratory is investigating the possibilities and problems of extracting energy from geothermal reservoirs which do not spontaneously yield useful amounts of steam or hot water. The system for accomplishing this which is being developed first is a pressurized-water circulation loop intended for use in relatively impermeable hot rock. It will consist of two holes connected through the hot rock by a very large h… more
Date: December 31, 1974
Creator: Smith, M.C.
Partner: UNT Libraries Government Documents Department
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Laser-generated shock-wave experiments in metals above 1 TPa

Description: Some initial experiments are described which form part of a new program aimed at significantly extending the range of high pressures and densities which may be explored in laboratory equation-of-state (EOS) experiments. These experiments will utilize high-energy lasers, such as those employed in the Laser Fusion Program at Lawrence Livermore Laboratory (LLL), to generate intense shock waves in materials of interest.
Date: January 31, 1978
Creator: Trainor, R. J.; Shaner, J. W.; Auerbach, J. M. & Phillion, D. W.
Partner: UNT Libraries Government Documents Department
open access

Line intensities for diagnosing laser-produced plasmas

Description: We have measured relative line intensities of the K x-ray spectra of Si, Cl, and Ca from laser-produced plasmas to assess their usefulness as a plasma diagnostic. The different elements are added at low concentrations to CH disks which are irradiated at 5 x 10/sup 14/ W/cm/sup 2/ with a 0.53 ..mu..m laser pulse of 20 Joules at 1 nsec. The concentration of each element is kept low in order not to change the Z of the plasma, and therefore the plasma dynamics. The various spectra are measured with… more
Date: October 31, 1983
Creator: Kauffman, R.L.; Matthews, D.L.; Lee, R.W.; Whitten, B.L. & Kilkenny, J.D.
Partner: UNT Libraries Government Documents Department
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Scattering of waves from a staggered difference scheme on a variable grid

Description: We show experimentally that for a staggered scheme on a variable grid the numerical solution of the wave equation exhibits scattering of waves even when the grid varies slowly and the waves are smooth. We also show that this scattering is predicted very well by a modified equation, which thus serves as a backward error analysis.
Date: March 31, 1982
Creator: Chin, R.C.Y. & Hedstrom, G.W.
Partner: UNT Libraries Government Documents Department
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Introduction to the differential geometry of quantum groups

Description: An introduction to the noncommutative differential calculus on quantum groups. The invariant group average is also discussed.
Date: October 31, 1991
Creator: Zumino, B.
Partner: UNT Libraries Government Documents Department
open access

Jahn-Teller Effect: Its History and Applicability

Description: The interactions between Teller, Renner, Jahn and Landau which led to the formulation of the Jahn-Teller effect are discussed. The applicability of Jahn-Teller type of theory to superconductivity and the explanation proposed by the use of Goldstone particles are assessed.
Date: August 31, 1981
Creator: Teller, E.
Partner: UNT Libraries Government Documents Department
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Turbostar: an ICF reactor using both direct and thermal power conversion. Revision 1

Description: Combining direct and thermal power conversion results in a 52% gross plant efficiency with DT fuel and 68% with advanced DD fuel. We maximize the fraction of fusion-yield energy converted to kinetic energy in a liquid-lithium blanket, and use this energy directly with turbine generators to produce electricity. We use the remainder of the energy to produce electricity in a standard Rankine thermal power conversion cycle.
Date: July 31, 1986
Creator: Pitts, J.H.
Partner: UNT Libraries Government Documents Department
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Wavelength scaling of implosion symmetry, ablation pressure, and hydrodynamic efficiency in laser fusion

Description: We examine the scaling of implosion symmetry, ablation pressure, and hydrodynamic efficiency with the wavelength of the laser, using a recent theoretical analysis of ablative laser driven implosions as a tool. Symmetrization by a hot atmosphere is most effective for long wavelength lasers, whereas ablation pressure and hydrodynamic efficiency are best for shorter laser wavelengths.
Date: July 31, 1981
Creator: Max, C.E.; Lindl, J.D. & Mead, W.C.
Partner: UNT Libraries Government Documents Department
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Compact torus accelerator: a driver for ICF. Revision 1

Description: We have carried out further investigations of technical issues associated with using a compact torus (CT) accelerator as a driver for inertial confinement fusion (ICF). In a CT accelerator, a magnetically-confined torus-shaped plasma is compressed, accelerated and focused by two concentric electrodes. Here, we evaluate an accelerator point design with a capacitor bank energy of 9.2 MJ. Modeled by a O-D code, the system produces a xenon plasma ring with a radius of 0.73 cm, a velocity of 4 x 10/… more
Date: July 31, 1986
Creator: Tobin, M. T. & Morse, E. C.
Partner: UNT Libraries Government Documents Department
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Nuclear and particle astrophysics

Description: We discuss the physics of matter that is relevant to the structure of compact stars. This includes nuclear, neutron star matter and quark matter and phase transitions between them. Many aspects of neutron star structure and its dependance on a number of physical assumptions about nuclear matter properties and hyperon couplings are investigated. We also discuss the prospects for obtaining constraints on the equation of state from astrophysical sources. Neuron star masses although few are known a… more
Date: October 31, 1990
Creator: Glendenning, N.K.
Partner: UNT Libraries Government Documents Department
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Fluorescent scattering by molecules embedded in small particles. Progress report, February 1, 1981-January 31, 1982

Description: In earlier work a model of fluorescent and Raman scattering by active molecules represented as classical electric dipoles embedded in small particles was developed. The intensity and angular distribution of the inelastically scattered radiation was shown to depend on the geometric and optical properties of the particle. The model was originally developed for particles having spherical shape and later extended to concentric spheres, cylinders, and prolate spheroids. The active molecules were ori… more
Date: January 31, 1982
Creator: Chew, H. & McNulty, P.J.
Partner: UNT Libraries Government Documents Department
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Neutral beams for mirrors

Description: An important demonstration of negative ion technology is proposed for FY92 in the MFTF-..cap alpha..+T, an upgrade of the Mirror Fusion Test Facility at the Lawrence Livermore National Laboratory. This facility calls for 200-keV negative ions to form neutral beams that generate sloshing ions in the reactor end plugs. Three different beam lines are considered for this application. Their advantages and disadvantages are discussed.
Date: August 31, 1983
Creator: Fink, J.H.
Partner: UNT Libraries Government Documents Department
open access

Analysis of the Genome of a Korean Isolate of the Pieris rapae Granulovirus Enabled by Its Separation from Total Host Genomic DNA by Pulse-Field Electrophoresis

Description: Article on an analysis of the genome of a Korean isolate of the Pieris rapae granulovirus enabled by its separation from total host genomic DNA by pulse-field electrophoresis.
Date: December 31, 2013
Creator: Jo, Yong Hun; Patnaik, Bharat Bhusan; Kang, Se Won; Chae, Sung-Hwa; Oh, Seunghan; Kim, Dong Hyun et al.
Partner: UNT College of Arts and Sciences
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Elastic electron scattering from formic acid

Description: Following our earlier study on the dynamics of low energy electron attachment to formic acid, we report the results of elastic low-energy electron collisions with formic acid. Momentum transfer and angular differential cross sections were obtained by performing fixed-nuclei calculations employing the complex Kohn variational method. We make a brief description of the technique used to account for the polar nature of this polyatomic target and compare our results with available experimental data. more
Date: July 31, 2006
Creator: Trevisan, Cynthia S.; Orel, Ann E. & Rescigno, Thomas N.
Partner: UNT Libraries Government Documents Department
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STATUS OF CHEMICAL CLEANING OF WASTE TANKS AT THE SAVANNAH RIVER SITE F TANK FARM CLOSURE PROJECT - 9114

Description: Chemical Cleaning is currently in progress for Tanks 5 and 6 at the Savannah River Site. The Chemical Cleaning process is being utilized to remove the residual waste heel remaining after completion of Mechanical Sludge Removal. This work is required to prepare the tanks for closure. Tanks 5 and 6 are 1950s vintage carbon steel waste tanks that do not meet current containment standards. These tanks are 22.9 meters (75 feet) in diameter, 7.5 meters (24.5 feet) in height, and have a capacity of 2.… more
Date: December 31, 2008
Creator: Thaxton, D; Geoff Clendenen, G; Willie Gordon, W; Samuel Fink, S & Michael Poirier, M
Partner: UNT Libraries Government Documents Department
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A Top to Bottom Lithospheric Study of Africa and Arabia

Description: We study the lithospheric structure of Africa, Arabia and adjacent oceanic regions with fundamental-mode surface waves over a wide period range. Including short period group velocities allows us to examine shallower features than previous studies of the whole continent. In the process, we have developed a crustal thickness map of Africa. Main features include crustal thickness increases under the West African, Congo, and Kalahari cratons. We find crustal thinning under Mesozoic and Cenozoic rif… more
Date: October 31, 2006
Creator: Pasyanos, M
Partner: UNT Libraries Government Documents Department
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Calcium Carbonate Storage in Amorphous Form and Its Template-Induced Crystallization

Description: Calcium carbonate crystallization in organisms often occurs through the transformation from the amorphous precursor. It is believed that the amorphous phase could be temporarily stabilized and stored, until its templated transition to the crystalline form is induced. Here we develop a bio-inspired crystallization strategy that is based on the above mechanism. Amorphous calcium carbonate (ACC) spherulitic particles are formed and stabilized on a self-assembled monolayer (SAM) of hydroxy-terminat… more
Date: August 31, 2007
Creator: Han, T Y & Aizenberg, J
Partner: UNT Libraries Government Documents Department
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LISSAT Analysis of a Generic Centrifuge Enrichment Plant

Description: The U.S. Department of Energy (DOE) is interested in developing tools and methods for use in designing and evaluating safeguards systems for current and future plants in the nuclear power fuel cycle. The DOE is engaging several DOE National Laboratories in efforts applied to safeguards for chemical conversion plants and gaseous centrifuge enrichment plants. As part of the development, Lawrence Livermore National Laboratory has developed an integrated safeguards system analysis tool (LISSAT). Th… more
Date: May 31, 2007
Creator: Lambert, H; Elayat, H A; O?Connell, W J; Szytel, L & Dreicer, M
Partner: UNT Libraries Government Documents Department
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