Search Results

open access

(Energy and electricity supply and demand)

Description: At the request of the International Atomic Energy Agency (IAEA), representing eleven international agencies which are sponsoring the 1991 Helsinki Symposium on Electricity and the Environment, I traveled to Brussels to participate in the second meeting of one of four advisory groups established to prepare for the Symposium. At the meeting, I was involved in a review of a draft issue paper being prepared for the Symposium and of the Symposium program.
Date: October 9, 1990
Creator: Wilbanks, T.J.
open access

Further studies of 60 Hz exposure effects on human function

Description: Public concern has been expressed about possible health risks arising from exposure to the electric and magnetic fields generated power distribution systems. This project is addressing this concern through a laboratory research program designed to evaluate the effects of brief exposure to known field conditions on multiple measures of human function. In previous research, we found that exposure had statistically significant effects on physiological measures of cardiac and brain activity, and on… more
Date: October 9, 1990
Creator: Graham, C. & Cohen, H.D.
open access

Higgs effects in the polarization of top quarks

Description: Top quarks produced in high-energy collisions should exhibit a parity-conserving spin polarization normal to the production plane which can be measured by the asymmetry in their leptonic decays. A portion of this effect, which can be calculated in perturbation theory, is attributable to the quark`s QCD interactions. In addition, there is a component of the polarization due to the Yukawa coupling (g{sub Y} {congruent} m{sub T}/(250 GeV)) of the top quark with the Higgs sector. We can demonstrate… more
Date: October 9, 1990
Creator: Sivers, D.
open access

Method for co-processing waste rubber and carbonaceous material

Description: In a process for the co-processing of waste rubber and carbonaceous material to form a useful liquid product, the rubber and the carbonaceous material are combined and heated to the depolymerization temperature of the rubber in the presence of a source of hydrogen. The deploymerized rubber acts as a liquefying solvent for the carbonaceous material while a beneficial catalytic effect is obtained from the carbon black released on deploymerization the reinforced rubber. The reaction is carried out… more
Date: October 9, 1990
Creator: Farcasiu, M. & Smith, C. M.
open access

Method of electrode fabrication and an electrode for metal chloride battery

Description: A method of fabricating an electrode for use in a metal chloride battery and an electrode are provided. The electrode has relatively larger and more uniform pores than those found in typical electrodes. The fabrication method includes the steps of mixing sodium chloride particles selected from a predetermined size range with metal particles selected from a predetermined size range, and then rigidifying the mixture. The electrode exhibits lower resistivity values of approximately 0.5 {Omega}cm{s… more
Date: October 9, 1990
Creator: Bloom, I.D.; Nelson, P.A. & Vissers, D.R.
open access

Method of Electrode Fabrication and an Electrode for Metal Chloride Battery

Description: A method of fabricating an electrode for use in a metal chloride battery and an electrode are provided. The electrode has relatively larger and more uniform pores than those found in typical electrodes. The fabrication method includes the steps of mixing sodium chloride particles selected from a predetermined size range with metal particles selected from a predetermined size range, and then rigidifying the mixture. The electrode exhibits lower resistivity values of approximately 0.5 {Omega}cm{s… more
Date: October 9, 1990
Creator: Bloom, Ira D.; Nelson, Paul A. & Vissers, Donald R.
open access

Synthesis of a naphthalene-hydroxynaphthalene polymer model compound

Description: This goal is to synthesize a new naphthalene hydroxynaphthalene polymer model compound for use in coal combustion studies. na effort will also require the development of a synthetic procedure to synthesize this compound since it is unreported. As a result of our synthesis efforts, a number of potential precursors and Area's Analytical Section for characterization and identification. The synthesis of the pre-Bakefite intermediate has been identified as being key to the evaluation of our syntheti… more
Date: October 9, 1990
Creator: Kwong, C. D.
open access

Synthesis of a naphthalene-hydroxynaphthalene polymer model compound. Quarterly report, June 13, 1990--September 12, 1990

Description: This goal is to synthesize a new naphthalene hydroxynaphthalene polymer model compound for use in coal combustion studies. na effort will also require the development of a synthetic procedure to synthesize this compound since it is unreported. As a result of our synthesis efforts, a number of potential precursors and Area`s Analytical Section for characterization and identification. The synthesis of the pre-Bakefite intermediate has been identified as being key to the evaluation of our syntheti… more
Date: October 9, 1990
Creator: Kwong, C. D.
open access

Marketing research for EE G Mound Applied Technologies' heat treatment process of high strength materials

Description: This report summarizes research conducted by ITI to evaluate the commercialization potential of EG G Mound Applied Technologies' heat treatment process of high strength materials. The remainder of the report describes the nature of demand for maraging steel, extent of demand, competitors, environmental trends, technology life cycle, industry structure, and conclusion. (JL)
Date: October 9, 1991
Creator: Shackson, R.H.
open access

PHYSLIB: A C++ tensor class library

Description: C++ is the first object-oriented programming language which produces sufficiently efficient code for consideration in computation-intensive physics and engineering applications. In addition, the increasing availability of massively parallel architectures requires novel programming techniques which may prove to be relatively easy to implement in C++. For these reasons, Division 1541 at Sandia National Laboratories is devoting considerable resources to the development of C++ libraries. This docum… more
Date: October 9, 1991
Creator: Budge, K.G.
open access

Recent results from the Crystal Barrel experiment

Description: The Crystal Barrel experiment has been constructed and installed at the Low Energy Antiproton Ring (LEAR) at CERN. It has been fully operational since late 1989. In this talk, recent results of meson spectroscopy in p[bar p]-annihilations are presented. The main emphasis is on all-neutral annihilations, the study of the strange quark content of the proton, and the investigation of the decay mode of il particles. A 2[sup ++] resonance decaying into [pi][degrees][pi][degrees]at a mass of 1515 [pl… more
Date: October 9, 1991
open access

Recent results from the Crystal Barrel experiment

Description: The Crystal Barrel experiment has been constructed and installed at the Low Energy Antiproton Ring (LEAR) at CERN. It has been fully operational since late 1989. In this talk, recent results of meson spectroscopy in p{bar p}-annihilations are presented. The main emphasis is on all-neutral annihilations, the study of the strange quark content of the proton, and the investigation of the decay mode of il particles. A 2{sup ++} resonance decaying into {pi}{degrees}{pi}{degrees}at a mass of 1515 {pl… more
Date: October 9, 1991
Creator: The Crystal Barrel Collaboration
open access

Chemical and thermal stability of refrigerant-lubricant mixtures with metals

Description: This report presents the results of a sealed tube stability study on twenty-one refrigerant-lubricant mixtures selected from the following groupings: HFCs R-32, R-125, R-134, R-134a, R-143a, and R-152a with one or more lubricants selected from among three pentaerythritol esters and three polyalkylene glycols. All lubricants were carefully predried to 25 ppm or less moisture content. HCFCs R-22, R-123, R-124, and R-142b, as well as CFC R-11, with one or more lubricants selected from among two mi… more
Date: October 9, 1992
Creator: Huttenlocher, D.F.
open access

Chemical and thermal stability of refrigerant-lubricant mixtures with metals. Final report

Description: This report presents the results of a sealed tube stability study on twenty-one refrigerant-lubricant mixtures selected from the following groupings: HFCs R-32, R-125, R-134, R-134a, R-143a, and R-152a with one or more lubricants selected from among three pentaerythritol esters and three polyalkylene glycols. All lubricants were carefully predried to 25 ppm or less moisture content. HCFCs R-22, R-123, R-124, and R-142b, as well as CFC R-11, with one or more lubricants selected from among two mi… more
Date: October 9, 1992
Creator: Huttenlocher, D. F.
open access

EQ6, a computer program for reaction path modeling of aqueous geochemical systems: Theoretical manual, user`s guide, and related documentation (Version 7.0); Part 4

Description: EQ6 is a FORTRAN computer program in the EQ3/6 software package (Wolery, 1979). It calculates reaction paths (chemical evolution) in reacting water-rock and water-rock-waste systems. Speciation in aqueous solution is an integral part of these calculations. EQ6 computes models of titration processes (including fluid mixing), irreversible reaction in closed systems, irreversible reaction in some simple kinds of open systems, and heating or cooling processes, as well as solve ``single-point`` ther… more
Date: October 9, 1992
Creator: Wolery, T.J. & Daveler, S.A.
open access

Steam explosion analysis in support of the SRS reactor safety assessment

Description: This report describes the application of two steam explosion models in support of the Probabilistic Risk Assessment (PRA) for the Savannah River Reactors. Theoretical models are required to estimate steam explosion yields in terms of kinetic energy, pressure shock and steam generated by the event. These quantities are used in the PRA to determine fission product barrier integrity in the reactor confinement following a hypothetical steam explosion. The basic preconditions for a steam explosion a… more
Date: October 9, 1992
Creator: Vonderfecht, B.E. & Smith, D.C.
open access

Steam explosion analysis in support of the SRS reactor safety assessment

Description: This report describes the application of two steam explosion models in support of the Probabilistic Risk Assessment (PRA) for the Savannah River Reactors. Theoretical models are required to estimate steam explosion yields in terms of kinetic energy, pressure shock and steam generated by the event. These quantities are used in the PRA to determine fission product barrier integrity in the reactor confinement following a hypothetical steam explosion. The basic preconditions for a steam explosion a… more
Date: October 9, 1992
Creator: Vonderfecht, B. E. & Smith, D. C.
open access

Advanced radiation techniques for inspection of diesel engine combustion chamber materials components. Final report

Description: Heavy duty truck engines must meet stringent life cycle cost and regulatory requirements. Meeting these requirements has resulted in convergence on 4-stroke 6-in-line, turbocharged, and after-cooled engines with direct-injection combustion systems. These engines provide much higher efficiencies (42%, fuel consumption 200 g/kW-hr) than automotive engines (31%, fuel consumption 270 g/kW-hr), but at higher initial cost. Significant near-term diesel engine improvements are necessary and are spurred… more
Date: October 9, 1995
open access

Experimental characterization of high-brightness electron photoinjector

Description: Operational experience of the emittance compensated photoinjector at the Brookhaven Accelerator Test Facility (ATF) is presented in this paper. The photoinjector has demonstrated the stability and reliability required for UV and X-ray FEL applications. The RF gun has been routinely running at more than 100 MV/m peak acceleration field; the laser system of the photoinjector has achieved 2% peak to peak energy stability, 0.5% point stability and better than 2 ps timing jitter. The highest measure… more
Date: October 9, 1995
Creator: Wang, X. J.; Babzien, M.; Batchelor, K.; Ben-Zvi, Ilan; Pogorelsky, R. M. I.; Qui, X. et al.
open access

Power electronic building block (PEDD) workshop. Trip report

Description: I attended the Power Electronic Building Block (PEBB) workshop at DOE HQ on June 21,1995. Accompanying me was Doug Hopkins, who is contracting with the Lab through Mark Newton on power electronics. The PEBB concept, and the workshop in particular, are sponsored by the Office of Naval Research (ONR) and DOE. The general concept behind PEBB is a ``second electronics revolution`` facilitated by a single-package, smart, multi-function power control block. The PEBB will potentially replace all conve… more
Date: October 9, 1995
Creator: Johnson, G.W.
open access

Results an data on the growth of the microorganisms

Description: The study of biocorrosion of aluminum and its alloy was performed under conditions of continuous fermentation of thermophilic anaerobic microorganisms of different groups. This allowed us to examine the effect of various types of metabolic reactions of reduction-oxidation proceeding at different pH and temperatures under highly reduced conditions on aluminum corrosion. Besides, the experiments were performed where the part of the standard sample was exposed under strictly anaerobic conditions w… more
Date: October 9, 1995
Creator: Laurinavichius, K.S.
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