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Overview of radioactive waste management

Description: The question of what to do with radioactive wastes is discussed. The need to resolve this issue promptly is pointed out. Two significant events which have occurred during the Carter administration are discussed. An Interagency Review Group (IRG) on waste management was formed to formulate recommendations leading to the establishment of a National policy for managing radioactive wastes. The technical findings in the IRG report are listed. The author points out some issues not addressed by the re… more
Date: May 29, 1980
Creator: Ritter, G.L.
Partner: UNT Libraries Government Documents Department
open access

Localized corrosion of steels in geothermal steam/brine mixtures

Description: Coupons of eight different carbon and chrome-moly alloy steels were exposed to high temperature, high salinity wellhead brine flow at a geothermal well in the Salton Sea Geothermal Field for periods of up to six months. The corrosion rate and corrosion attack morphology of each coupon was determined. Exposure time was a test variable and ranged from one month to six months. Test results indicate that carbon steels generally suffer high corrosion rates and are susceptible to severe localized att… more
Date: May 29, 1980
Creator: McCright, R. D.; Frey, W. F. & Tardiff, G. E.
Partner: UNT Libraries Government Documents Department
open access

Reservoir response to tidal and barometric effects

Description: Solid earth tidal strain and surface loading due to fluctuations in barometric pressure have the effect, although extremely minute, of dilating or contracting the effective pore volume in a porous reservoir. If a well intersects the formation, the change in pore pressure can be measured with sensitive quartz pressure gauges. Mathematical models of the relevant fluid dynamics of the well-reservoir system have been generated and tested against conventional well pumping results or core data at the… more
Date: May 29, 1980
Creator: Hanson, J.M.
Partner: UNT Libraries Government Documents Department
open access

Progress toward identification of gluonic states

Description: Progress in the last two years toward identification of gluonic states is reviewed. Discovery of additional pseudoscalars tends to confirm the glueball interpretation of iota(1460). A variety of evidence indicates new physics in the J = 1 channel in the E mass region. 65 refs., 1 tab.
Date: May 29, 1987
Creator: Chanowitz, Michael S.
Partner: UNT Libraries Government Documents Department
open access

The Origins of the Rate Enhancement in LiNi0.4Co0.2-yAlyMn0.4O2 (0<y<_0.2) Cathode Materials

Description: Recently, much research has been directed towards finding a replacement cathode material for LiCoO{sub 2} combining high performance with lower cost and toxicity. One promising candidate material is the mixed transition metal oxide LiNi{sub 0.4}Co{sub 0.2}Mn{sub 0.4}O{sub 2}, which delivers 180 mAh/g below 4.4 V versus Li/Li{sup +} (1, 2). However, in this material, there is 4% anti-site cation mixing, which hinders the mobility of lithium within the lattice, adversely affecting its rate perfor… more
Date: May 29, 2008
Creator: Doeff, Marca M; Wilcox, James & Doeff, Marca M.
Partner: UNT Libraries Government Documents Department
open access

Compact Analytic Expression for the Electric Field of a 2DElliptical Charge Distribution Inside a Perfectly Conducting CircularCylinder

Description: By combining the method of images with calculus of complex variables, we provide a simple expression for the electric field of a two-dimensional (2D) static elliptical charge distribution inside a perfectly conducting cylinder. The charge distribution need not be concentric with the cylinder.
Date: May 29, 2007
Creator: Furman, M. A.
Partner: UNT Libraries Government Documents Department
open access

Quantum geometry and gravitational entropy

Description: Most quantum states have wavefunctions that are widely spread over the accessible Hilbert space and hence do not have a good description in terms of a single classical geometry. In order to understand when geometric descriptions are possible, we exploit the AdS/CFT correspondence in the half-BPS sector of asymptotically AdS_5 x S5 universes. In this sector we devise a&quot;coarse-grained metric operator&quot; whose eigenstates are well described by a single spacetime topology and geometry. We s… more
Date: May 29, 2007
Creator: Simon, Joan; Balasubramanian, Vijay; Czech, Bart Iomiej; Larjo, Klaus; Marolf, Donald & Simon, Joan
Partner: UNT Libraries Government Documents Department
open access

Semiconductor Quantum Rods as Single Molecule FluorescentBiological Labels

Description: In recent years, semiconductor quantum dots have beenapplied with great advantage in a wide range of biological imagingapplications. The continuing developments in the synthesis of nanoscalematerials and specifically in the area of colloidal semiconductornanocrystals have created an opportunity to generate a next generation ofbiological labels with complementary or in some cases enhanced propertiescompared to colloidal quantum dots. In this paper, we report thedevelopment of rod shaped semicond… more
Date: May 29, 2006
Creator: Fu, Aihua; Gu, Weiwei; Boussert, Benjamine; Koski, Kristie; Gerion, Daniele; Manna, Liberato et al.
Partner: UNT Libraries Government Documents Department
open access

Use of the (t,p) reaction for in-beam spectroscopy studies

Description: Triton induced reactions, such as the (t,p) reaction, can be used for in-beam gamma-ray and conversion-electron studies of nuclei that are somewhat neutron rich. We have developed systems for both conversion-electron and gamma-ray spectroscopy in coincidence with the outgoing energetic proton to identify the (t,p) reaction channel. Data from the /sup 142/Nd(t,p..gamma..) reaction illustrate several of the characteristics of this reaction for studying nuclear structure. Preliminary results from … more
Date: May 29, 1986
Creator: Henry, E.A.
Partner: UNT Libraries Government Documents Department
open access

Computational simulations of plasma flow switches and imploding loads

Description: The Procyon system in the Los Alamos Trailmaster foil implosion project is intended to produce soft x-ray radiation by delivering about 1 MJ of kinetic energy to an imploding plasma liner. The final switching stage of this system will be a Plasma Flow Switch (PFS) which delivers current to the cylindrical foil load. 1-D and 2-D simulations are now being conducted to examine: the initiation of the PFS plasma: the dynamics of the PFS and its switching efficiency; the load implosion and resulting … more
Date: May 29, 1991
Creator: Peterson, D. L.; Bowers, R. L.; Brownell, J. H.; Greene, A. E. & Roderick, N. F.
Partner: UNT Libraries Government Documents Department
open access

Errors in determination of soil water content using time-domain reflectometry caused by soil compaction around wave guides

Description: Application of time domain reflectometry (TDR) in soil hydrology often involves the conversion of TDR-measured dielectric permittivity to water content using universal calibration equations (empirical or physically based). Deviations of soil-specific calibrations from the universal calibrations have been noted and are usually attributed to peculiar composition of soil constituents, such as high content of clay and/or organic matter. Although it is recognized that soil disturbance by TDR wavegui… more
Date: May 29, 2008
Creator: Ghezzehei, Teamrat A.
Partner: UNT Libraries Government Documents Department
open access

Computational features of the CACECO containment analysis code. [LMFBR]

Description: A code, CACECO, has been written to assist in the analysis of containment situations peculiar to sodium cooled reactors. Typically, these situations involve relatively slow energy release processes and chemical reaction heat. Two examples are given to illustrate some of the code's features. These particular cases illustrate the potential for hydrogen formation in the containment building, but show that time is available to take corrective action. The code is suitable for other problems involvin… more
Date: May 29, 1975
Creator: Peak, R. D. & Stepnewski, D. D.
Partner: UNT Libraries Government Documents Department
open access

Gas-Phase Molecular Dynamics: Theoretical Studies In Spectroscopy and Chemical Dynamics

Description: The main goal of this program is the development and application of computational methods for studying chemical reaction dynamics and molecular spectroscopy in the gas phase. We are interested in developing rigorous quantum dynamics algorithms for small polyatomic systems and in implementing approximate approaches for complex ones. Particular focus is on the dynamics and kinetics of chemical reactions and on the rovibrational spectra of species involved in combustion processes. This research al… more
Date: May 29, 2012
Creator: Yu, H. G. & Muckerman, J. T.
Partner: UNT Libraries Government Documents Department
open access

Gas-Phase Molecular Dynamics: High Resolution Spectroscopy and Collision Dynamics of Transient Species

Description: This research is carried out as part of the Gas-Phase Molecular Dynamics program in the Chemistry Department at Brookhaven National Laboratory. Chemical intermediates in the elementary gas-phase reactions involved in combustion chemistry are investigated by high resolution spectroscopic tools. Production, reaction, and energy transfer processes are investigated by transient, double resonance, polarization and saturation spectroscopies, with an emphasis on technique development and connection wi… more
Date: May 29, 2012
Creator: Hall, G. E. & Goncharov, V.
Partner: UNT Libraries Government Documents Department
open access

Ion Desorption Stability in Superconducting High Energy Physics Proton Colliders

Description: In this paper we extend our previous analysis of cold beam tube vacuum in a superconducting proton collider to include ion desorption in addition to thermal desorption and synchrotron radiation induced photodesorption. The new ion desorption terms introduce the possibility of vacuum instability. This is similar to the classical room temperature case but now modified by the inclusion of ion desorption coefficients for cryosorbed (physisorbed) molecules which can greatly exceed the coefficients f… more
Date: May 29, 1995
Creator: Turner, W.C.
Partner: UNT Libraries Government Documents Department
open access

GLAMM: Genome-Linked Application for Metabolic Maps

Description: The Genome-Linked Application for Metabolic Maps (GLAMM) is a unified web interface for visualizing metabolic networks, reconstructing metabolic networks from annotated genome data, visualizing experimental data in the context of metabolic networks, and investigating the construction of novel, transgenic pathways. This simple, user-friendly interface is tightly integrated with the comparative genomics tools of MicrobesOnline. GLAMM is available for free to the scientific community at glamm.lbl.… more
Date: May 29, 2011
Creator: Bates, John; Chivian, Dylan & Arkin, Adam
Partner: UNT Libraries Government Documents Department
open access

Semi-inclusive Deep Inelastic Scattering at Small-x

Description: We study the semi-inclusive hadron production in deep inelastic scattering at small-x.A transverse momentum dependent factorization is found consistent with the resultscalculated in the color-dipole framework in the appropriate kinematic region. The transverse momentum dependent quark distribution can be studied in this processas a probe for the small-x saturation physics. Especially, the ratio of the quark distributions as functions of transverse momentum at different x demonstrates strong dep… more
Date: May 29, 2009
Creator: Marquet, C.; Xiao, B.-W. & Yuan, Feng
Partner: UNT Libraries Government Documents Department
open access

Electromigration-induced Plasticity: Texture Correlation and Implications for Reliability Assessment

Description: Plastic behavior has previously been observed in metallic interconnects undergoing high current density electromigration (EM) loading. In this study of Cu interconnects, using the synchrotron technique of white beam X-ray microdiffraction, we have further found preliminary evidence of a texture correlation. In lines with strong (111) textures, the extent of plastic deformation is found to be relatively large compared to that of weaker textures. We suggest that this strong (111) texture may lead… more
Date: May 29, 2008
Creator: Budiman, A. S.; Besser, P. R.; Hau-Riege, C. S.; Marathe, A.; Joo, Y.-C.; Tamura, N. et al.
Partner: UNT Libraries Government Documents Department
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