National Library of Energy BETA

Sample records for opal bench pipelin

  1. OPAL opacities

    SciTech Connect (OSTI)

    Rogers, F.J.; Iglesias, C.A. )

    1992-01-01

    Radiative transport is essential in determining the structure and evolution of a star. However, there are no direct measurements of the radiative opacity at stellar interior conditions so that stellar models must rely on theoretical results. Generally, the opacity calculations produced at Los Alamos have proven adequate to describe most features of stellar evolution. Nevertheless, many details remain unexplained. For example, pulsation properties of Cepheids, [delta] Scuti variables, and [beta] Cephei stars have eluded explanation. This situation has been altered with the introduction of new OPAL opacity calculations. The OPAL opacities show large increases compared to the Los Alamos results and have resolved pulsation problems. In addition, the OPAL opacities have made favorable impact on solar models, the critical mass limit for pulsationaly stable stars, convective core overshooting, and the lithium depletion problem in G Dwarfs in the Hyades. A brief description of the OPAL code will be presented along with results.

  2. OPAL opacities

    SciTech Connect (OSTI)

    Rogers, F.J.; Iglesias, C.A.

    1992-08-01

    We have continued to improve and update the OPAL opacity code. Addition of intermediate coupling has further increases the opacity over earlier LS coupling results. A corresponding states method has been used to extend the tables in both X and Z. This has allowed the calculation and distribution of extensive opacity tables for several different sets of metal abundance.

  3. Freight pipelines

    SciTech Connect (OSTI)

    Liu, H. (University of Missouri, Columbia, MO (US)); Round, G.F. (McMaster University (CA))

    1989-01-01

    This book presents papers on slurry pipelines, pneumatic pipelines, capsule pipelines, pipeline education, and pipeline research.

  4. OPAL Opacities for astrophysical applications

    SciTech Connect (OSTI)

    Iglesias, C.A.; Rogers, F.J.

    1991-05-01

    The OPAL opacity code developed at LLNL has been applied to astrophysical problems. The computed Rosseland mean opacities show significant differences when compared to the Los Alamos results. These differences have been traced to both atomic and equation of state improvements in the OPAL code. Furthermore, preliminary work suggest that the OPAL calculations considerably improve the agreement between observations and stellar models. 24 refs., 4 figs.

  5. Donor states in inverse opals

    SciTech Connect (OSTI)

    Mahan, G. D.

    2014-09-21

    We calculate the binding energy of an electron bound to a donor in a semiconductor inverse opal. Inverse opals have two kinds of cavities, which we call octahedral and tetrahedral, according to their group symmetry. We put the donor in the center of each of these two cavities and obtain the binding energy. The binding energies become very large when the inverse opal is made from templates with small spheres. For spheres less than 50 nm in diameter, the donor binding can increase to several times its unconfined value. Then electrons become tightly bound to the donor and are unlikely to be thermally activated to the semiconductor conduction band. This conclusion suggests that inverse opals will be poor conductors.

  6. A Fossilized Opal A To Opal C-T Transformation On The Northeast...

    Open Energy Info (EERE)

    A Fossilized Opal A To Opal C-T Transformation On The Northeast Atlantic Margin- Support For A Significantly Elevated Palaeogeothermal Gradient During The Neogene? Jump to:...

  7. Updated opal opacities

    SciTech Connect (OSTI)

    Iglesias, C.A.; Rogers, F.J.

    1996-06-01

    The reexamination of astrophysical opacities has eliminated gross discrepancies between a variety of observations and theoretical calculations; thus allowing for more detailed tests of stellar models. A number of such studies indicate that model results are sensitive to modest changes in the opacity. Consequently, it is desirable to update available opacity databases with recent improvements in physics, refinements of element abundance, and other such factors affecting the results. Updated OPAL Rosseland mean opacities are presented. The new results have incorporated improvements in the physics and numerical procedures as well as corrections. The main opacity changes are increases of as much as 20{percent} for Population I stars due to the explicit inclusion of 19 metals (compared to 12 metals in the earlier calculations) with the other modifications introducing opacity changes smaller than 10{percent}. In addition, the temperature and density range covered by the updated opacity tables has been extended. As before, the tables allow accurate interpolation in density and temperature as well as hydrogen, helium, carbon, oxygen, and metal mass fractions. Although a specific metal composition is emphasized, opacity tables for different metal distributions can be made readily available. The updated opacities are compared to other work. {copyright} {ital 1996 The American Astronomical Society.}

  8. RF test bench automation Description

    E-Print Network [OSTI]

    Dobigeon, Nicolas

    RF test bench automation Description: Callisto would like to implement automated RF test bench. Three RF test benches have to be studied and automated: LNA noise temperature test bench LNA gain phase of the test benches and an implementation of the automation phase. Tasks: Noise temperature

  9. OPAL Supplementary Note for PR177 October 11, 1996

    E-Print Network [OSTI]

    OPAL Supplementary Note for PR177 October 11, 1996 Details of the Search for Chargino and Neutralino Production Using the OPAL Detector at p s = 161 GeV at LEP The OPAL Collaboration Abstract This is a supplementary note to the OPAL paper PR177. It provides details on the search for charginos and neutralinos

  10. Ceria based inverse opals for thermochemical fuel production: Quantification and prediction of high temperature behavior

    E-Print Network [OSTI]

    Casillas, Danielle Courtney

    2015-01-01

    Angeles Ceria based inverse opals for thermochemical fuelCeria based inverse opals for thermochemical fuelCeria- based inverse opals are currently being investigated

  11. Opal photonic crystals infiltrated with chalcogenide glasses

    SciTech Connect (OSTI)

    Astratov, V. N.; Adawi, A. M.; Skolnick, M. S.; Tikhomirov, V. K.; Lyubin, V.; Lidzey, D. G.; Ariu, M.; Reynolds, A. L.

    2001-06-25

    Composite opal structures for nonlinear applications are obtained by infiltration with chalcogenide glasses As{sub 2}S{sub 3} and AsSe by precipitation from solution. Analysis of spatially resolved optical spectra reveals that the glass aggregates into submillimeter areas inside the opal. These areas exhibit large shifts in the optical stop bands by up to 80 nm, and by comparison with modelling are shown to have uniform glass filling factors of opal pores up to 40%. Characterization of the domain structure of the opals prior to infiltration by large area angle-resolved spectroscopy is an important step in the analysis of the properties of the infiltrated regions. {copyright} 2001 American Institute of Physics.

  12. Update on the OPAL opacity code

    SciTech Connect (OSTI)

    Rogers, F.J.; Iglesias, C.A.; Wilson, B.G.

    1990-02-23

    Persisting discrepancies between theory and observation in a number of astrophysical properties has led to the conjecture that opacity databases may be inaccurate. The OPAL opacity code has been developed to address this question. The physical basis of OPAL removes several of the approximations present in past calculations. For example, it utilizes a much larger and more detailed set of atomic data than was used to construct the Los Alamos Astrophysical Library. This data is generated online, in LS or intermediate coupling, from prefitted analytic effective potentials and is of similar quality as single configuration, relativistic, self-consistent-field calculations. The OPAL code has been used to calculate opacities for the solar core and for Cepheid variable stars. In both cases, significant increases in the opacity compared to the Los Alamos Astrophysical Library were found. 37 refs., 2 figs., 1 tab.

  13. Update on the opal opacity code

    SciTech Connect (OSTI)

    Rogers, F.J.; Iglesias, C.A.; Wilson, B.G. )

    1990-05-01

    Persisting discrepancies between theory and observation in a number of astrophysical properties has led to the conjecture that opacity databases may be inaccurate. The OPAL opacity code has been developed to address this question. The physical basis of OPAL removes several of the approximations present in past calculations. For example, it utilizes a much larger and more detailed set of atomic data than was used to construct the los Alamos Astrophysical Library. This data is generated online, in LS or intermediate coupling, from prefitted analytic effective potentials and is of similar quality as single configuration, relativistic, self-consistent-field calculations. The OPAL code has been used to calculate opacities for the solar core and for Cepheid variable stars. In both cases, significant increases in the opacity compared to the Los Alamos Astrophysical Library were found.

  14. Directional Fluorescence Spectra of Laser Dye in Opal and Inverse Opal Photonic Crystals Lydia Bechger,* Peter Lodahl, and Willem L. Vos

    E-Print Network [OSTI]

    Vos, Willem L.

    Directional Fluorescence Spectra of Laser Dye in Opal and Inverse Opal Photonic Crystals Lydia polystyrene opals and alumina inverse opals are studied, allowing us to compare direct and inverted structures emission was first reported in refs 6 and 7: titania inverse opals doped with laser dye showed a broadband

  15. EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH Determination of # S using OPAL

    E-Print Network [OSTI]

    EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH Determination of # S using OPAL hadronic event shapes at # s = 91 - 209 GeV and resummed NNLO calculations The OPAL Collaboration Abstract Hadronic event shape distributions from e + e - annihilation measured by the OPAL ex­ periment at centre­of­mass energies between 91

  16. Reflection of focused beams from opal photonic crystals

    E-Print Network [OSTI]

    Jonsson, Fredrik

    Reflection of focused beams from opal photonic crystals Karri Varis, Marco Mattila Optoelectronics from opals that are synthesized using polystyrene and poly(methyl methacrylate) microspheres. 2005 of self-organized opal photonic crystals," Phys. Rev. E 61, 57845793 (2000). 12. M. Bardosova and R. H

  17. EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH OPAL PR 305

    E-Print Network [OSTI]

    EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH OPAL PR 305 CERN­EP­2000­032 February 23, 2000 Measurement of |V cb | using ? B 0 # D #+ # - ? # decays The OPAL Collaboration Abstract The magnitude on the Z 0 peak using the OPAL detector at LEP. The D #+ # D 0 # + decays were reconstructed both

  18. HADRON SPIN PHYSICS AT OPAL \\Lambda G. D. Lafferty

    E-Print Network [OSTI]

    (1) HADRON SPIN PHYSICS AT OPAL \\Lambda G. D. Lafferty Department of Physics and Astronomy in a sample of 4.3 million hadronic Z 0 decays from the OPAL experiment at LEP. Leading, light vector mesons, Poland #12; 2 At OPAL, we have studied the vectormeson helicity density matrices for inclusively

  19. OPAL Physics Note PN258 10 September 1996

    E-Print Network [OSTI]

    Evans, Hal

    OPAL Physics Note PN258 10 September 1996 Measurement of the Exclusive Lepton Decay to a Final State with One K 0 S Meson and Three Charged Hadrons The OPAL Collaboration Abstract We describe hadrons, using Z 0 ! + \\Gamma candidates collected with the OPAL detector at LEP during the 1990

  20. EUROPEAN ORGANISATION FOR NUCLEAR RESEARCH OPAL Physics Paper PR395

    E-Print Network [OSTI]

    EUROPEAN ORGANISATION FOR NUCLEAR RESEARCH OPAL Physics Paper PR395 15 th January 2004 Revised 1 st at LEP2 The OPAL Collaboration Abstract Anomalous quartic couplings between the electroweak gauge bosons. This analysis uses the LEP2 OPAL data sample at centre-of-mass energies up to 209 GeV. Event selections identify

  1. EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH OPAL PR 317

    E-Print Network [OSTI]

    EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH OPAL PR 317 CERN­EP­2000­90 July 7, 2000 Measurement of the B 0 Lifetime and Oscillation Frequency using ? B 0 # D #+ # - ? # decays The OPAL Collaboration #+ # - ? # decays recorded on the Z 0 peak with the OPAL detector at LEP. The D #+ # D 0 # + decays were

  2. Diffusion and transport coefficients in synthetic opals

    SciTech Connect (OSTI)

    Sofo, J. O.; Mahan, G. D.; Department of Physics and Astronomy, The University of Tennessee, Knoxville, Tennessee 37996-1200

    2000-07-15

    Opals are structures composed of close-packed spheres in the size range of nano to micrometers. They are sintered to create small necks at the points of contact. We have solved the diffusion problem in such structures. The relation between the diffusion coefficient and the thermal and electrical conductivity is used to estimate the transport coefficients of opal structures as a function of the neck size and the mean free path of the carriers. The theory presented is also applicable to the diffusion problem in other periodic structures. (c) 2000 The American Physical Society.

  3. Application of Fourier transform infrared spectroscopy to silica diagenesis: The opal-A to opal-CT transformation

    SciTech Connect (OSTI)

    Rice, S.B.; Freund, H.; Huang, W.L.; Clouse, J.A.; Isaacs, C.M.

    1995-10-02

    An important goal in silica diagenesis research is to understand the kinetics of opal transformation from noncrystalline opal-A to the disordered silica polymorph opal-CT. Because the conventional technique for monitoring the transformation, powder X-ray diffraction (XRD), is applicable only to phases with long-range order, the authors used Fourier transform infrared spectroscopy (FTIR) to monitor the transformation. They applied this technique, combined with XRD and TEM, to experimental run products and natural opals from the Monterey Formation and from siliceous deposits in the western Pacific Ocean. Using a ratio of two infrared absorption intensities ({omega} = I{sub 472 cm{sup {minus}1}}/I{sub 500 cm{sup {minus}1}}), the relative proportions of opal-A and opal-CT can be determined. The progress of the transformation is marked by changes in slope of {omega} vs. depth or time when a sufficient stratigraphic profile is available. There are three stages in the opal-A to opal-CT reaction: (1) opal-A dissolution; (2) opal-CT precipitation, whose end point is marked by completion of opal-A dissolution; and (3) opal-CT ordering, during which tridymite stacking is eliminated in favor of crystobalite stacking.

  4. Worldwide pipelines and contractors directory

    SciTech Connect (OSTI)

    1999-11-01

    This directory contains information on the following: pipeline contractors; US natural gas pipelines; US crude oil pipelines; US product pipelines; Canadian pipelines and foreign pipelines.

  5. P1.26 ROLE OF WARM OCEAN FEATURES ON INTENSITY CHANGE: HURRICANE OPAL

    E-Print Network [OSTI]

    P1.26 ROLE OF WARM OCEAN FEATURES ON INTENSITY CHANGE: HURRICANE OPAL Lynn K. Shay, Gustavo J. Goni elds during hurricane Opal. 2. HURRICANE OPAL As shown in Fig. 1a., the passage of hurricane Opal, hurricane Opal moved over a warm core eddy detected by the altimeter onboard the NASA oceanographic TOPogra

  6. The OPAL opacity code: New results

    SciTech Connect (OSTI)

    Rogers, F.J.; Iglesias, C.A.

    1994-12-31

    The OPAL code was developed to calculate the wide range of frequency-dependent and mean opacity data needed to model laboratory experiments and stellar interiors. We use parametric potentials to generate vastly more atomic data than used in earlier opacity work for all elements with atomic number less than 35. We have also developed an improved equation of state based on an activity expansion of the grand canonical partition function. We give herein a brief description of the OPAL code and present new results that include the effect of additional heavy elements compared to our earlier carbons. The importance of very heavy elements having atomic number greater than 30 is also discussed. We present some comparisons with recent results from the Opacity Project and some directions for future work.

  7. Amplified spontaneous emission from opal photonic crystals engineered with structural defectsw

    E-Print Network [OSTI]

    Amplified spontaneous emission from opal photonic crystals engineered with structural defectsw opals engineered with planar structural defects containing a conjugated polymer emitter. Defects in opals give rise to allowed states inside the photonic stop band, which are probed by transmittance

  8. EXAMEN ALGEBRE Universit du Littoral Cte d'Opale

    E-Print Network [OSTI]

    Smouch, Laurent

    EXAMEN ­ ALGEBRE Université du Littoral Côte d'Opale Mercredi 17 juin 2009, 9h-12h L'usage de tout

  9. Questions and Issues on Hydrogen Pipelines: Pipeline Transmission...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Questions and Issues on Hydrogen Pipelines: Pipeline Transmission of Hydrogen Questions and Issues on Hydrogen Pipelines: Pipeline Transmission of Hydrogen Pipping of GH2 Pipeline....

  10. Holocene hydrologic balance of tropical South America from oxygen isotopes of lake sediment opal, Venezuelan Andes

    E-Print Network [OSTI]

    Wolfe, Alexander P.

    Holocene hydrologic balance of tropical South America from oxygen isotopes of lake sediment opal.V. All rights reserved. Keywords: oxygen isotopes; biogenic opal; hydrologic balance; Holocene; Venezuela

  11. Opal Palmer Adisa. It Begins With Tears (Portsmouth, NH: Heinemann Press, 1997).

    E-Print Network [OSTI]

    Devlin, Leslie

    1997-01-01

    Opal Palmer Adisa. It Begins With Tears (Portsmouth, NH:Tears, is the first novel of Opal Palmer Adisa. She was born

  12. Bench-Scale Fermentation Laboratory (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-07-01

    This fact sheet provides information about Bench-Scale Fermentation Laboratory capabilities and applications at NREL's National Bioenergy Center.

  13. Pipeline ADC Design Methodology

    E-Print Network [OSTI]

    Zhao, Hui

    2012-01-01

    Scaling vs. R. Figure 4.8 Pipeline ADC Structures. Figure2.4 A Pipelined ADC. Figure 3.1 Pipeline ADC Transfer Curve.Modes (b) data latency in pipeline ADC Figure 3.3 Detailed

  14. Late Quaternary changes in biogenic opal uxes in the Southern Indian Ocean

    E-Print Network [OSTI]

    Demouchy, Sylvie

    Late Quaternary changes in biogenic opal uxes in the Southern Indian Ocean L. Dezileau a; , J Ocean have been reconstructed from radioisotope and proxy element profiles (biogenic opal and organic Circumpolar Current. Dissolution- corrected opal rain rates were used to reconstruct past changes of opal

  15. HRTEM of microcrystalline opal in chert and porcelanite from the Monterey Formation, California

    SciTech Connect (OSTI)

    Cady, S.L.; Wenk, H.R.; Downing, K.H.

    1996-11-01

    Microcrystalline opal was investigated using low-dose transmission electron microscopy (TEM) methods to identify microstructural characteristics and possible phase-transformation mechanisms that accommodate silica diagenesis. High-resolution TEM (HRTEM) revealed that microcrystalline opal in opal-CT chert (>90 wt% silica) and opal-CT porcelanite (50-90 wt% silica) from the Miocene Monterey Formation of California displays various amounts of structural disorder and coherent and incoherent lamellar intergrowths. Species of microfibrous opal identified by HRTEM in early-formed opal-CT chert include length-slow opal-C and unidimensionally disordered length-slow opal-CT ({open_quotes}lussatite{close_quotes}). These fibers often display a microstructure characterized by an aperiodic distribution of highly strained domains that separate ordered domains located at discrete positions along the direction of the fiber axes. Microfibrous opal occurs as several types of fiber-aggregation forms. TEM revealed that the siliceous matrix in later-formed opal-CT porcelanite consists of equidimensional, nanometer-size opal-CT crystallites and lussatite fibers. Pseudo-orthorhombic tridymite (PO-2) was identified by HRTEM in one sample of opal-CT porcelanite. Burial diagenesis of chert and porcelanite results in the precipitation of opal-C and the epitaxial growth of opal-C domains on opal-CT substrates. Diagenetic maturation of lussatite was identified by TEM in banded opal-CT-quartz chert to occur as a result of solid-state ordering. The primary diagenetic silica phase transformations between noncrystalline opal, microcrystalline opal, and quartz occur predominantly by a series of dissolution-precipitation reactions. However, TEM showed that in banded opal-CT-quartz chert, the epitaxial growth of quartz on microfibrous opal enhances the rate of silica diagenesis.

  16. Beat Cepheid Period Ratios from OPAL Opacities

    E-Print Network [OSTI]

    S. M. Morgan; D. L. Welch

    1997-06-26

    The discovery of a large number of beat Cepheids in the Large Magellanic Cloud in the MACHO survey, provides an opportunity to compare the characteristics of such Cepheids over a range of metallicities. We produced a large grid of linear nonadiabatic pulsation models using the OPAL opacity tables and with compositions corresponding to those of the Milky Way, and the Large and Small Magellanic Clouds. Using the relationship between the period ratio and the main pulsation period, we are able to define a range of models which correspond to the observed beat Cepheids, and thereby constrain the physical characteristics of the LMC beat Cepheids. We are also able to make some predictions about the nature of the yet-to-be-discovered SMC beat Cepheids.

  17. Hydrogen Pipeline Working Group Workshop: Code for Hydrogen Pipelines...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Working Group Workshop: Code for Hydrogen Pipelines Hydrogen Pipeline Working Group Workshop: Code for Hydrogen Pipelines Code for Hydrogen Piping and Pipelines. B31 Hydrogen...

  18. Hydrogen Pipelines | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Pipelines Hydrogen Pipelines Photo of a hydrogen pipeline. Gaseous hydrogen can be transported through pipelines much the way natural gas is today. Approximately 1,500 miles of...

  19. Calibration of the HAO standard opal filter set. Technical note

    SciTech Connect (OSTI)

    Streete, J.L.

    1989-10-01

    Solar radiation attenuators called opal filters have been used for several decades to calibrate photographic film in instruments used to measure the brightness of the solar corona. The primary component used in fabricating these filters is opal glass. New measurements of the transmittance of the HAO fundamental standard set of opal filters were begun in September, 1988. Since nearly two decades had passed from the time of the last calibration measurements, there was concern that the transmittance of the filters might have changed. Another motivation for recalibrating the opal filters was the desire to know the transmittance values in spectral regions above and below those used in 1970. The spectral regions chosen were 450 nm, 550 nm, 650 nm and 800 nm. Comparisons of transmittance are made with the previous values, and new transmittance values are given.

  20. Pipeline Expansions

    Reports and Publications (EIA)

    1999-01-01

    This appendix examines the nature and type of proposed pipeline projects announced or approved for construction during the next several years in the United States. It also includes those projects in Canada and Mexico that tie-in with the U.S. markets or projects.

  1. Photoluminescence modification by a high-order photonic band with abnormal dispersion in ZnO inverse opal

    E-Print Network [OSTI]

    Cao, Hui

    O inverse opal Heeso Noh, Michael Scharrer, Mark A. Anderson, Robert P. H. Chang, and Hui Cao Materials- and polarization-resolved reflection and photoluminescence spectra of ZnO inverse opals. Significant enhancement widely used for fabrication of face-centered-cubic fcc structures such as opals or inverse opals. An opal

  2. Bench terracing in the Kerinci uplands of Sumatra, Indonesia

    E-Print Network [OSTI]

    Belsky, Jill M.

    Bench terracing in the Kerinci uplands of Sumatra, Indonesia ABSTRACF: Bench terracing's effect farmers views and use of bench terraces were evaluated in the Kerinci uplands of Sumatra , Indonesia

  3. Comparison of On-Road Portable and Bench Emission Measurements...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Comparison of On-Road Portable and Bench Emission Measurements Comparison of On-Road Portable and Bench Emission Measurements Chassis dynamometer testing using a conventional...

  4. Ultrafast optical switching of three-dimensional Si inverse opal photonic band gap crystals

    E-Print Network [OSTI]

    Vos, Willem L.

    Ultrafast optical switching of three-dimensional Si inverse opal photonic band gap crystals Tijmen on three-dimensional photonic band gap crystals. Switching the Si inverse opal is achieved by optically

  5. An experimental study of strongly modified emission in inverse opal photonic crystals

    E-Print Network [OSTI]

    Vos, Willem L.

    An experimental study of strongly modified emission in inverse opal photonic crystals A. Femius crystals, made of inverse opals in titania. We show that both the fluorescence quantum efficiency and weak

  6. Opal Waters, Rising Seas: How Sociocultural Inequality Reduces Resilience to Climate

    E-Print Network [OSTI]

    Green, Donna

    218 Chapter 12 Opal Waters, Rising Seas: How Sociocultural Inequality Reduces Resilience to Climate in the north indicate increasing extreme events: #12;Opal Waters, Rising Seas 219 monsoonal rain projected

  7. Glucose-Sensitive Inverse Opal Hydrogels: Analysis of Optical Diffraction Response

    E-Print Network [OSTI]

    Braun, Paul

    Glucose-Sensitive Inverse Opal Hydrogels: Analysis of Optical Diffraction Response Yun-Ju Lee swelling of the inverse opal hydrogel, which was observed through shifts in the optical diffraction

  8. Propagation of polarized light in opals: Amplitude and phase anisotropy

    SciTech Connect (OSTI)

    Baryshev, A. V. Dokukin, M. E.; Merzlikin, A. M.; Inoue, M.

    2011-03-15

    The interaction of linearly polarized light with photonic crystals based on bulk and thin-film synthetic opals is studied. Experimental transmission spectra and spectra showing the polarization state of light transmitted through opals are discussed. A change in polarization is found for waves experiencing Bragg diffraction from systems of crystallographic planes of the opal lattice. It is shown that the polarization plane of the incident linearly polarized wave at the exit from photonic crystals can be considerably rotated. In addition, incident linearly polarized light can be transformed to elliptically polarized light with the turned major axis of the polarization ellipse. Analysis of polarization states of transmitted light by using the transfer-matrix theory and homogenization theory revealed good agreement between calculated and experimental spectra.

  9. Implementation of New OPAL Tables in Eggleton's Stellar Evolution Code

    E-Print Network [OSTI]

    Xuefei Chen; Christopher A. Tout

    2006-11-08

    Based on the work of OPAL (Iglesias & Rogers 1996) and Alexander & Ferguson (1994), we construct a series of opacity tables for various metallicities Z=0, 0.00001, 0.00003, 0.0001, 0.0003, 0.001, 0.004, 0.01, 0.02, 0.03, 0.04, 0.05, 0.06, 0.08 and 0.1. These tables can be easily used in Eggleton's stellar evolution code in place of the old tables without changing the code. The OPAL tables are used for ${\\log}_{10}(T/{\\rm K})> 3.95$ and Alexander's for ${\\log}_{10}(T/{\\rm K})OPAL tables (Iglesias & Rogers 1992) shows that the new opacities have most effect in the late stages of evolution, the extension of the blue loop during helium burning for intermediate-mass and massive stars.

  10. Fabrication of inverted opal ZnO photonic crystals by atomic layer deposition

    E-Print Network [OSTI]

    Yamilov, Alexey

    Fabrication of inverted opal ZnO photonic crystals by atomic layer deposition M. Scharrer, X. Wu, A templates using a low-temperature atomic layer deposition process. The polystyrene is removed by firing into opal or inverted opal backbones.3,5,13,14 Recently, atomic layer deposition ALD has been pro- posed

  11. Artificially inscribed defects in opal photonic crystals Fredrik Jonsson a,*, Clivia M. Sotomayor Torres a

    E-Print Network [OSTI]

    Jonsson, Fredrik

    Artificially inscribed defects in opal photonic crystals Fredrik Jonsson a,*, Clivia M. Sotomayor 13 January 2005 Abstract Opals are three-dimensional photonic crystals, self-assembled from]. In this respect the opals are of particular inter- est since they provide a three-dimensional pho- tonic structure

  12. 13.4 A HIGH RESOLUTION NUMERICAL SIMULATION OF THE LANDFALL OF HURRICANE OPAL (1995)

    E-Print Network [OSTI]

    Wilhelmson, Robert

    1995-01-01

    13.4 A HIGH RESOLUTION NUMERICAL SIMULATION OF THE LANDFALL OF HURRICANE OPAL (1995) Glen Romine at: http://pampa.ncsa.uiuc.edu/~romine/opal.html Recent high-resolution simulations within a high-resolution (1.1 km) simulation of Hurricane Opal (1995) carried out using the MM5. The primary

  13. Accurate calculation of the local density of optical states in inverse-opal

    E-Print Network [OSTI]

    Vos, Willem L.

    Accurate calculation of the local density of optical states in inverse-opal photonic crystals Ivan We have investigated the local density of optical states (LDOS) in titania and silicon inverse opals for many dif- ferent emitter positions and orientations in inverse opals in order to supply a theoretical

  14. Opal: A Multi-radio Platform for High Throughput Wireless Sensor Networks

    E-Print Network [OSTI]

    Langendoen, Koen

    1 Opal: A Multi-radio Platform for High Throughput Wireless Sensor Networks Raja Jurdak, Kevin requirements. This letter presents the design of the versatile Opal platform that couples a Cortex M3 MCU sacrificing communication range. We present experiments that evaluate Opal's throughput and range when

  15. Relationships between palaeogeography and opal occurrence in Australia: A data-mining approach

    E-Print Network [OSTI]

    Mller, Dietmar

    Relationships between palaeogeography and opal occurrence in Australia: A data-mining approach T 2013 Keywords: Data-mining Spatio-temporal analysis Palaeogeography Opal Association rules Great-temporal patterns related to the occurrence of Australian opal. Our aim is to test the concept that only

  16. Optical properties and diffraction effects in opal photonic crystals Alessandra Balestreri and Lucio Claudio Andreani

    E-Print Network [OSTI]

    Optical properties and diffraction effects in opal photonic crystals Alessandra Balestreri Optical properties of fcc opals oriented along the 111 direction are calculated by means of a scattering on polystyrene opals. Diffraction spectra as a function of the number of layers display an oscillatory behavior

  17. Towards a Predictive Model for Opal Exploration using a Spatio-temporal Data Mining Approach

    E-Print Network [OSTI]

    Mller, Dietmar

    Towards a Predictive Model for Opal Exploration using a Spatio-temporal Data Mining Approach Andrew depositional, unclassified Opal deposit 140E120E 20S 40S Winton Opalton Jundah Eromanga Quilpie Lightning Ridge White Cliffs Stuart Creek LambinaMintabie Coober Pedy Surat Basin Eromanga Basin Opal mining town

  18. Fluorescence Lifetime of Emitters with Broad Homogeneous Linewidths Modified in Opal Photonic Crystals

    E-Print Network [OSTI]

    Vos, Willem L.

    Fluorescence Lifetime of Emitters with Broad Homogeneous Linewidths Modified in Opal Photonic, 2008 We have investigated the dynamics of spontaneous emission from dye molecules embedded in opal optical frequency and crystal lattice parameter of the polystyrene opals. Due to the broad homogeneous

  19. Waveguides in inverted opal photonic Virginie Lousse 1,2 and Shanhui Fan 1

    E-Print Network [OSTI]

    Fan, Shanhui

    Waveguides in inverted opal photonic crystals Virginie Lousse 1,2 and Shanhui Fan 1 1 Ginzton phenomena are investigated in an inverted opal photonic crystal made of interpenetrating air spheres, coated, and simulations," Phys. Rev. E 71, 026,605 (2005). 12. V.N. Astratov, et al, "Optical spectroscopy of opal

  20. Size-specific opal-bound nitrogen isotope measurements in North Pacific sediments

    E-Print Network [OSTI]

    Gilli, Adrian

    Size-specific opal-bound nitrogen isotope measurements in North Pacific sediments Anja S. Studer a composition of diatom opal (d15 Ndb) is a valuable recorder of nitrate utilization in the polar surface oceans the measurement of the biogenic opal fraction up to 150 lm in size, which should represent the bulk

  1. THE APPLICATIONS FOR 3D INVERSE OPAL MICROSTRUCTURES TAE WAN KIM

    E-Print Network [OSTI]

    Braun, Paul

    THE APPLICATIONS FOR 3D INVERSE OPAL MICROSTRUCTURES BY TAE WAN KIM THESIS Submitted-D micro structures applications, and in particular 3-D inverse opal micro structures made using structures. This inverse opal micro structure can not only be used for micro electromechanical systems (MEMS

  2. Structural Properties of Opals Grown with Vertical Controlled Drying Alex Hartsuiker*, and Willem L. Vos,

    E-Print Network [OSTI]

    Vos, Willem L.

    Structural Properties of Opals Grown with Vertical Controlled Drying Alex Hartsuiker*, and Willem L ReceiVed January 15, 2008 We have grown thin opals of self-assembled silica colloids by the well. These self-assembled photonic crystals, also called artificial opals, have attracted much attention over

  3. Are artificial opals non-close-packed fcc structures? F. Garca-Santamaraa

    E-Print Network [OSTI]

    Braun, Paul

    Are artificial opals non-close-packed fcc structures? F. Garca-Santamaraa and P. V. Braun experimental method to accurately measure the volume fraction of artificial opals. The results are modeled in the opal interstices with the optical properties may need revision, especially in the case of high

  4. 8D.3 INVESTIGATING CONVECTIVE ELEMENTS IN A HIGH RESOLUTION SIMULATION OF HURRICANE OPAL (1995)

    E-Print Network [OSTI]

    Wilhelmson, Robert

    1995-01-01

    8D.3 INVESTIGATING CONVECTIVE ELEMENTS IN A HIGH RESOLUTION SIMULATION OF HURRICANE OPAL (1995. INTRODUCTION Numerous studies have investigated the intensity and track of Hurricane Opal in 1995, an event the convective scale behavior of the hurricane. This is of particular interest because Hurricane Opal

  5. Optical response with threefold symmetry axis on oriented microdomains of opal photonic crystals

    E-Print Network [OSTI]

    Optical response with threefold symmetry axis on oriented microdomains of opal photonic crystals L November 2008 Opal photonic crystals viewed along the 111 direction of the fcc structure have a threefold measurements on 111 -stacked silica opals with single oriented microdomains, identified by field

  6. DOI: 10.1002/adma.200602792 Filling Fraction Dependent Properties of Inverse Opal Metallic

    E-Print Network [OSTI]

    Braun, Paul

    DOI: 10.1002/adma.200602792 Filling Fraction Dependent Properties of Inverse Opal Metallic Photonic, and battery electrodes.[7] The photonic properties of metallic inverse opal structures have been. However, in prac- tice, experiments on metal inverse opals have been inconclu- sive,[810] presumably

  7. Phytolith assemblages and opal concentrations from modern soils differentiate temperate grasslands of controlled composition on

    E-Print Network [OSTI]

    Thomas, David D.

    Phytolith assemblages and opal concentrations from modern soils differentiate temperate grasslands on their silica record in topsoil in a controlled experiment. The differences in total biogenic opal concentration reserved. 1. Introduction Phytoliths are silica (opal) microfossils produced in tissues of higher plants

  8. Photonic bandgap engineering with inverse opal multistacks of different refractive index contrasts

    E-Print Network [OSTI]

    Cao, Hui

    Photonic bandgap engineering with inverse opal multistacks of different refractive index contrasts but from materials with different refractive indices. Al2O3, ZnO, and TiO2 are infiltrated into opal templates by atomic layer deposition. Stacking multiple inverse opal structures with different refractive

  9. Cryogenic opal-A deposition from Yellowstone hot springs Alan Channing a,, Ian B. Butler b,1

    E-Print Network [OSTI]

    Cryogenic opal-A deposition from Yellowstone hot springs Alan Channing a,, Ian B. Butler b,1 Sub-zero winter temperatures on the Yellowstone Plateau alter the opal-A precipitation pathway, contains abundant opal-A particles, comprising sheet and filament- like aggregations of opal-A microspheres

  10. The OPAL Equation of State and Low Metallicity Isochrones

    E-Print Network [OSTI]

    Brian Chaboyer; Yong --Cheol Kim

    1995-06-19

    The Yale stellar evolution code has been modified to use the OPAL equation of state tables (Rogers 1994). Stellar models and isochrones were constructed for low metallicity systems ($-2.8 \\le [Fe/H] \\le -0.6$). Above $M\\sim 0.7\\,\\msun$, the isochrones are very similar to those which are constructed using an equation of state which includes the analytical Debye-Huckel correction at high temperatures. The absolute magnitude of the main sequence turn-off (\\mvto) with the OPAL or Debye-Huckel isochrones is about 0.06 magnitudes fainter, at a given age, than \\mvto derived from isochrones which do not include the Debye-Huckel correction. As a consequence, globular clusters ages derived using \\mvto are reduced by 6 -- 7\\% as compared to the ages determined from the standard isochrones. Below $M\\sim 0.7\\,\\msun$, the OPAL isochrones are systematically hotter (by approximately 0.04 in B-V) at a given magnitude as compared to the standard, or Debye-Huckel isochrones. However, the lower mass models fall out of the OPAL table range, and this could be the cause of the differences in the location of the lower main-sequences.

  11. Fabrication and characterization of cerium-doped barium titanate inverse opal by sol-gel method

    SciTech Connect (OSTI)

    Jin Yi; Zhu Yihua Yang Xiaoling; Li Chunzhong; Zhou Jinghong

    2007-01-15

    Cerium-doped barium titanate inverted opal was synthesized from barium acetate contained cerous acetate and tetrabutyl titanate in the interstitial spaces of a polystyrene (PS) opal. This procedure involves infiltration of precursors into the interstices of the PS opal template followed by hydrolytic polycondensation of the precursors to amorphous barium titanate and removal of the PS opal by calcination. The morphologies of opal and inverse opal were characterized by scanning electron microscope (SEM). The pores were characterized by mercury intrusion porosimetry (MIP). X-ray photoelectron spectroscopy (XPS) investigation showed the doping structure of cerium, barium and titanium. And powder X-ray diffraction allows one to observe the influence of doping degree on the grain size. The lattice parameters, crystal size and lattice strain were calculated by the Rietveld refinement method. The synthesis of cerium-doped barium titanate inverted opals provides an opportunity to electrically and optically engineer the photonic band structure and the possibility of developing tunable three-dimensional photonic crystal devices. - Graphical abstract: Cerium-doped barium titanate inverted opal was synthesized from barium acetate acid contained cerous acetate and tetrabutyl titanate in the interstitial spaces of a PS opal, which involves infiltration of precursors into the interstices of the PS opal template and removal of the PS opal by calcination.

  12. The rheology and processing of edge sheared colloidal polymer opals

    SciTech Connect (OSTI)

    Wong, Hon Sum; Mackley, Malcolm Butler, Simon; Baumberg, Jeremy; Snoswell, David; Finlayson, Chris; Zhao, Qibin

    2014-03-15

    This paper is concerned with the rheology and processing of solvent-free core shell polymer opals that consist of a soft outer shell grafted to hard colloidal polymer core particles. Strong iridescent colors can be produced by shearing the material in a certain way that causes the initially disordered spheres to rearrange into ordered crystalline structures and produce colors by diffraction and interference of multiple light scattering, similar to gemstone opals. The basic linear viscoelastic rheology of a polymer opal sample was determined as a function of temperature, and the material was found to be highly viscoelastic at all tested temperatures. A Cambridge multipass rheometer was specifically modified in order to make controlled mechanical measurements of initially disordered polymer opal tapes that were sandwiched between protective polyethylene terephthalate sheets. Axial extension, simple shear, and a novel edge shearing geometry were all evaluated, and multiple successive experiments of the edge shearing test were carried out at different temperatures. The optical development of colloidal ordering, measured as optical opalescence, was quantified by spectroscopy using visible backscattered light. The development of opalescence was found to be sensitive to the geometry of deformation and a number of process variables suggesting a complex interaction of parameters that caused the opalescence. In order to identify aspects of the deformation mechanism of the edge shearing experiment, a separate series of in situ optical experiments were carried out and this helped indicate the extent of simple shear generated with each edge shear deformation. The results show that strong ordering can be induced by successive edge shearing deformation. The results are relevant to polymer opal rheology, processing, and mechanisms relating to ordering within complex viscoelastic fluids.

  13. Components in the Pipeline

    SciTech Connect (OSTI)

    Gorton, Ian; Wynne, Adam S.; Liu, Yan; Yin, Jian

    2011-02-24

    Scientists commonly describe their data processing systems metaphorically as software pipelines. These pipelines input one or more data sources and apply a sequence of processing steps to transform the data and create useful results. While conceptually simple, pipelines often adopt complex topologies and must meet stringent quality of service requirements that place stress on the software infrastructure used to construct the pipeline. In this paper we describe the MeDICi Integration Framework, which is a component-based framework for constructing complex software pipelines. The framework supports composing pipelines from distributed heterogeneous software components and provides mechanisms for controlling qualities of service to meet demanding performance, reliability and communication requirements.

  14. Pipeline Construction Guidelines (Indiana)

    Broader source: Energy.gov [DOE]

    The Division of Pipeline Safety of the Indiana Utility Regulatory Commission regulates the construction of any segment of an interstate pipeline on privately owned land in Indiana. The division has...

  15. Keystone XL pipeline update

    Broader source: Energy.gov [DOE]

    Questions have been raised recently about the Keystone XL pipeline project, so we wanted to make some points clear.

  16. The isogeometric segmentation pipeline

    E-Print Network [OSTI]

    Jttler, Bert

    The isogeometric segmentation pipeline M. Pauley, Dang-Manh Nguyen, D. Mayer, J. Speh, O. Weeger, Bert Juttler G+S Report No. 31 June 2015 #12;The isogeometric segmentation pipeline Michael Pauley, Dang-Manh Nguyen, David Mayer, Jaka Speh, Oliver Weeger, Bert Jttler Abstract We present a pipeline

  17. RETROSPECTIVE: Software Pipelining

    E-Print Network [OSTI]

    Lam, Monica

    RETROSPECTIVE: Software Pipelining: An Effective Scheduling Technique for VLIW Machines Monica S. Lam Computer Systems Laboratory Stanford University ABSTRACT The basic idea behind software pipelining was first developed by Patel and Davidson for scheduling hardware pipe-lines. As instruction- level

  18. Results from {gamma}{gamma} collisions in OPAL

    SciTech Connect (OSTI)

    Patt, Jochen

    1998-05-29

    The production of charged hadrons and jets is measured in collisions of quasi-real photons. The data were taken with the OPAL detector at LEP at e{sup +}e{sup -} centre-of-mass energies {radical}(s{sub ee})=161 and 172 GeV. The measured cross-sections are compared to perturbative next-to-leading order QCD calculations. The separation of the direct and the resolved component of the photon is demonstrated.

  19. Opal equation-of-state tables for astrophysical applications

    SciTech Connect (OSTI)

    Rogers, F.J.; Swenson, F.J.; Iglesias, C.A.

    1996-01-01

    OPAL opacities have recently helped to resolve a number of long-standing discrepancies between theory and observation. This success has made it important to provide the associated equation-of-state (EOS) data. The OPAL EOS is based on an activity expansion of the grand canonical partition function of the plasma in terms of its fundamental constituents (electrons and nuclei). The formation of composite particles and many-body effects on the internal bound states occur naturally in this approach. Hence, pressure ionization is a consequence of the theory. In contrast, commonly used approaches, all of which are based on minimization of free energy, are forced to assert the effect of the plasma on composite particles and must rely on an ad hoc treatment of pressure ionization. Another advantage of the OPAL approach is that it provides a systematic expansion in the Coulomb coupling parameter that includes subtle quantum effects generally not considered in other EOS calculations. Tables have been generated that provide pressure, internal energy, entropy, and a variety of derivative quantities. These tables cover a fairly broad range of conditions and compositions applicable to general stellar-evolution calculations for stars more massive than {approximately}0.8 {ital M}{sub {circle_dot}}. An interpolation code is provided along with the tables to facilitate their use. {copyright} {ital 1996 The American Astronomical Society.}

  20. Subsea pipeline connection

    SciTech Connect (OSTI)

    Langner, C. G.

    1985-12-17

    A method and apparatus are provided for laying an offshore pipeline or flowline bundle to a deepwater subsea structure. The pipeline or flowline bundle is laid along a prescribed path, preferably U-shape, such that a pullhead at the terminus of the pipeline or flowline bundle falls just short of the subsea structure. A pull-in tool connected to the pipeline or flowline bundle by a short length of pull cable is then landed on and latched to the subsea structure, and the pipeline or flowline bundle is pulled up to the subsea structure by the pull-in tool and pull cable.

  1. Optics of an opal modeled with a stratified effective index and the effect of the interface

    E-Print Network [OSTI]

    Maurin, Isabelle; Laliotis, Athanasios; Bloch, Daniel

    2015-01-01

    Reflection and transmission for an artificial opal are described through a model of stratified medium based upon a one-dimensional variation of an effective index. The model is notably applicable to a Langmuir-Blodgett type disordered opal. Light scattering is accounted for by a phenomenological absorption. The interface region between the opal and the substrate -or the vacuum- induces a periodicity break in the photonic crystal arrangement, which exhibits a prominent influence on the reflection, notably away from the Bragg reflection peak. Experimental results are compared to our model. The model is extendable to inverse opals, stacked cylinders, or irradiation by evanescent waves

  2. Psoriasis Bench to Bedside Genetics Meets Immunology

    E-Print Network [OSTI]

    Abecasis, Goncalo

    COMMENTARY Psoriasis Bench to Bedside Genetics Meets Immunology M ORE THAN 25 years of accu- mulating evi- dence strongly implicates the immune system in the pathogen- esis of psoriasis, including, and kera- tinocytes). Psoriasis also has a strong genetic component, but the iden- tity of the genes

  3. BENCH SCALE SALTSTONE PROCESS DEVELOPMENT MIXING STUDY

    SciTech Connect (OSTI)

    Cozzi, A.; Hansen, E.

    2011-08-03

    The Savannah River National Laboratory (SRNL) was requested to develop a bench scale test facility, using a mixer, transfer pump, and transfer line to determine the impact of conveying the grout through the transfer lines to the vault on grout properties. Bench scale testing focused on the effect the transfer line has on the rheological property of the grout as it was processed through the transfer line. Rheological and other physical properties of grout samples were obtained prior to and after pumping through a transfer line. The Bench Scale Mixing Rig (BSMR) consisted of two mixing tanks, grout feed tank, transfer pump and transfer hose. The mixing tanks were used to batch the grout which was then transferred into the grout feed tank. The contents of the feed tank were then pumped through the transfer line (hose) using a progressive cavity pump. The grout flow rate and pump discharge pressure were monitored. Four sampling stations were located along the length of the transfer line at the 5, 105 and 205 feet past the transfer pump and at 305 feet, the discharge of the hose. Scaling between the full scale piping at Saltstone to bench scale testing at SRNL was performed by maintaining the same shear rate and total shear at the wall of the transfer line. The results of scaling down resulted in a shorter transfer line, a lower average velocity, the same transfer time and similar pressure drops. The condition of flow in the bench scale transfer line is laminar. The flow in the full scale pipe is in the transition region, but is more laminar than turbulent. The resulting plug in laminar flow in the bench scale results in a region of no-mixing. Hence mixing, or shearing, at the bench scale should be less than that observed in the full scale, where this plug is non existent due to the turbulent flow. The bench scale tests should be considered to be conservative due to the highly laminar condition of flow that exists. Two BSMR runs were performed. In both cases, wall shearing was shown to reduce the rheological properties of the grout as it was processed through the transfer line. Samples taken at the static feed tank showed that gelling impacted the rheological properties of the grout before it was fed into the pump and transfer line. A comparison of the rheological properties of samples taken at the feed tank and transfer line discharge indicated shearing of the grout was occurring in the transfer line. Bench scale testing of different mixing methods with three different salt solutions showed that method of mixing influences the rheological properties of the grouts. The paddle blade mixing method of the salt solution used for the BMSR testing provided comparable rheological properties of the grout prepared in the BMSR after 14 minutes of processing, B3. The paddle blade mixing method can be used to represent BMSR results and mixing time can be adjusted to represent larger scale mixing.

  4. Smart polymer inverse-opal photonic crystal films by melt-shear organization for hybrid coreshell architectures

    E-Print Network [OSTI]

    Schfer, C. G.; Winter, T.; Heidt, S.; Dietz, C.; Ding, T.; Baumberg, J. J.; Gallei, M.

    2015-01-16

    A feasible strategy to achieve large-area mechano-, thermo- and solvatochromic hybrid opal (OPC) and inverse opal photonic crystal (IOPC) films based on polymer hydrogels is described. Silica core particles featuring surface-anchored stimuli...

  5. EIA - Natural Gas Pipeline Network - Largest Natural Gas Pipeline...

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    capacity) Pipeline Name Market Regions Served Primary Supply Regions States in Which Pipeline Operates Transported in 2007 (million dekatherm)1 System Capacity (MMcfd) 2...

  6. Modified spontaneous emission spectra of laser dye in inverse opal photonic crystals Henry P. Schriemer,* Henry M. van Driel,

    E-Print Network [OSTI]

    Vos, Willem L.

    Modified spontaneous emission spectra of laser dye in inverse opal photonic crystals Henry P crystals made of inverse opals in titania (TiO2). We identify stop bands with large relative widths of 15 constants 15,16 . These so-called air-sphere crystals, or inverse opals, interact so strongly with light

  7. OPAL: A Multi-Layer Hybrid Photonic NoC for 3D ICs Sudeep Pasricha, Shirish Bahirat

    E-Print Network [OSTI]

    Pasricha, Sudeep

    OPAL: A Multi-Layer Hybrid Photonic NoC for 3D ICs Sudeep Pasricha, Shirish Bahirat Colorado State propose and explore a novel multi-layer hybrid photonic NoC fabric (OPAL) for 3D ICs. Our proposed hybrid layers to significantly reduce on-chip communication power dissipation and packet latency. OPAL also

  8. Th ratio as a proxy for past changes in opal fluxes in the Indian sector of the Southern Ocean

    E-Print Network [OSTI]

    Demouchy, Sylvie

    The 231 Pa/230 Th ratio as a proxy for past changes in opal fluxes in the Indian sector of particles. In this study we compare the 230 Th normalized vertical fluxes of both total sediments and opal (ACC). We observe a better correlation between the 231 Pa/230 Th ratios and the vertical opal fluxes

  9. Tunable Inverse Opal Hydrogel pH Sensors** By Yun-Ju Lee and Paul V. Braun*

    E-Print Network [OSTI]

    Braun, Paul

    Tunable Inverse Opal Hydrogel pH Sensors** By Yun-Ju Lee and Paul V. Braun* Synthesis of three suspen- sions and chemicals, we demonstrate the synthesis and optical diffraction of robust inverse opal away the template, the remaining PNIPAM inverse opal exhibited color changes which were dependent

  10. z14xcotrin.f A set of subroutines to interpolate the OPAL opacity tables in the six input

    E-Print Network [OSTI]

    Boothroyd, Arnold

    z14xcotrin.f ============ A set of subroutines to interpolate the OPAL opacity tables in the six been interconverted by nuclear burning, and/or the OPAL opacity tables can be extended by molecular .................................................................. 4 Update history ................................................................ 4 OPAL opacity

  11. Subsea pipeline connection

    SciTech Connect (OSTI)

    Langner, C. G.

    1985-09-17

    A method and apparatus are provided for connecting an offshore pipeline or flowline bundle to a deepwater subsea structure and then laying away from said structure. The pipeline or flowline bundle is deployed vertically from a pipelay vessel to make a hinged connection with the subsea structure. The connection operation is facilitated by a flowline connection tool attached to the pipeline or flowline bundle and designed to be inserted into a funnel located either centrally or to one side of the subsea structure. The connection procedure consists of landing and securing the flowline connection tool onto the subsea structure, then hinging over and connecting the pipeline or flowline bundle to the subsea structure as the pipeline or flowline bundle is laid on the seafloor beginning at the subsea structure.

  12. TAJE_A_754793.3d (TAJE) 02-05-2013 23:56 Towards a predictive model for opal exploration using

    E-Print Network [OSTI]

    Mller, Dietmar

    TAJE_A_754793.3d (TAJE) 02-05-2013 23:56 Towards a predictive model for opal exploration using produces over 90% of the world's precious opal from highly weathered Cretaceous sedimen- tary rocks within the Great Artesian Basin. Since opal was first discovered around 1870 until the present day, opal mining has

  13. Potential Benefits of Manmade Opals Demonstrated for First Time (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-06-01

    NREL experiments show that disordered inverse opals significantly scatter and trap near-infrared light, with possible impact on optoelectronic materials. Inverse opals, familiar in the form of brilliantly colored opal gemstones, are a class of materials that has astounding optical properties. Scientists have been exploring the ability of inverse opals to manipulate light in the hopes of harnessing this capacity for advanced technologies such as displays, detectors, lasers, and photovoltaics. A research group at the National Renewable Energy Laboratory (NREL) discovered that man-made inverse opal films containing significant morphological disorder exhibit substantial light scattering, consequently trapping wavelengths in the near-infrared (NIR), which is important to a number of technologies. This discovery is the first experimental evidence to validate a 2005 theoretical model predicting the confinement of light in such structures, and it holds great promise for improving the performance of technologies that rely on careful light control. This breakthrough also makes possible optoelectronic technologies that use a range of low-cost molecular and semiconductor species that otherwise absorb light too weakly to be useful. The disordered inverse opal architecture validates the theoretical model that predicts the diffusion and confinement of light in such structures. Electrochemically deposited CdSe inverse opal films containing significant morphological disorder exhibit substantial light scattering and consequent NIR light trapping. This discovery holds promise for NIR light management in optoelectronic technologies, particularly those involving weakly absorbing molecular and semiconductor photomaterials.

  14. GAS PIPELINE PIGABILITY

    SciTech Connect (OSTI)

    Ted Clark; Bruce Nestleroth

    2004-04-01

    In-line inspection equipment is commonly used to examine a large portion of the long distance transmission pipeline system that transports natural gas from well gathering points to local distribution companies. A piece of equipment that is inserted into a pipeline and driven by product flow is called a ''pig''. Using this term as a base, a set of terms has evolved. Pigs that are equipped with sensors and data recording devices are called ''intelligent pigs''. Pipelines that cannot be inspected using intelligent pigs are deemed ''unpigable''. But many factors affect the passage of a pig through a pipeline, or the ''pigability''. The pigability pipeline extend well beyond the basic need for a long round hole with a means to enter and exit. An accurate assessment of pigability includes consideration of pipeline length, attributes, pressure, flow rate, deformation, cleanliness, and other factors as well as the availability of inspection technology. All factors must be considered when assessing the appropriateness of ILI to assess specific pipeline threats.

  15. bench scale dev | netl.doe.gov

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorkingLos Alamos verifiesValidationENCOAL® Mild CoalSNOX(tm)43Bench-Scale

  16. INTERNAL REPAIR OF PIPELINES

    SciTech Connect (OSTI)

    Robin Gordon; Bill Bruce; Nancy Porter; Mike Sullivan; Chris Neary

    2003-05-01

    The two broad categories of deposited weld metal repair and fiber-reinforced composite repair technologies were reviewed for potential application for internal repair of gas transmission pipelines. Both are used to some extent for other applications and could be further developed for internal, local, structural repair of gas transmission pipelines. Preliminary test programs were developed for both deposited weld metal repairs and for fiber-reinforced composite repair. To date, all of the experimental work pertaining to the evaluation of potential repair methods has focused on fiber-reinforced composite repairs. Hydrostatic testing was also conducted on four pipeline sections with simulated corrosion damage: two with composite liners and two without.

  17. The OPAL silicon-tungsten calorimeter front end electronics

    SciTech Connect (OSTI)

    Anderson, B.E.; Charalambous, A. . Dept. of Physics and Astronomy); Anderson, K. )

    1994-08-01

    A pair of small angle silicon-tungsten (Si-W) calorimeters has been built to measure the luminosity to a precision better than 0.1% in the OPAL experiment at the Large Electron Positron (LEP) collider at CERN near Geneva. Each calorimeter contains 19 layers of tungsten (W) plates and silicon (Si) detectors, corresponding to a total of 22 radiation lengths, sampled by about 1 m[sup 2] of detectors divided into 304 x64 independently read out channels. A complete electronics system has been developed, from the preamplifier up to the VME read out and control interface. It includes a fast trigger based on analogue sums. This paper describes how a large number of channels have been implemented in a dense environment, thanks to the use of ASIC's directly bonded on the detector.

  18. Rnnotator Assembly Pipeline

    SciTech Connect (OSTI)

    Martin, Jeff

    2010-06-03

    Jeff Martin of the DOE Joint Genome Institute discusses a de novo transcriptome assembly pipeline from short RNA-Seq reads on June 3, 2010 at the "Sequencing, Finishing, Analysis in the Future" meeting in Santa Fe, NM

  19. Luminescence of CdSe/ZnS quantum dots infiltrated into an opal matrix

    SciTech Connect (OSTI)

    Gruzintsev, A. N. Emelchenko, G. A.; Masalov, V. M.; Yakimov, E. E.; Barthou, C.; Maitre, A.

    2009-02-15

    The effect of the photonic band gap in the photonic crystal, the synthesized SiO{sub 2} opal with embedded CdSe/ZnS quantum dots, on its luminescence in the visible spectral region is studied. It is shown that the position of the photonic band gap in the luminescence and reflectance spectra for the infiltrated opal depends on the diameter of the constituent nanospheres and on the angle of recording the signal. The optimal conditions for embedding the CdSe/ZnS quantum dots from the solution into the opal matrix are determined. It is found that, for the opal-CdSe/ZnS nanocomposites, the emission intensity decreases and the luminescence decay time increases in the spatial directions, in which the spectral positions of the photonic band gap and the luminescence peak of the quantum dots coincide.

  20. The effects of lithium hydroxide solution on alkali silica reaction gels created with opal

    SciTech Connect (OSTI)

    Mitchell, Lyndon D.; Beaudoin, James J.; Grattan-Bellew, Patrick

    2004-04-01

    The reaction of Nevada opal with calcium hydroxide, potassium hydroxide and lithium hydroxide solutions was investigated. In addition, opal was exposed to a combined solution of these three hydroxides. The progress of the three reactions was followed using X-ray diffraction (XRD), {sup 29}Si nuclear magnetic resonance (NMR) and scanning electron microscopy (SEM). The XRD results indicated the presence of a low-angle peak exclusive to the lithium-based reactions. The NMR results suggested a change in the silicate structure in the presence of lithium. These techniques indicated that the reaction of the alkali with the opal starting material is inhibited and perhaps stopped in the presence of lithium hydroxide. SEM revealed that the morphology of the reaction products on the surface of the reacted opal grains is markedly different invariably. It was concluded that evidence to support the theory of a protective layer exists and that the nature of the layer varies with ion type.

  1. A comparison of Rosseland-mean opacities from OP and OPAL

    E-Print Network [OSTI]

    M. J. Seaton; N. R. Badnell

    2004-04-22

    Monochromatic opacities from the Opacity Project (OP) (Seaton et al.) have been augmented by hitherto missing inner-shell contributions (Badnell & Seaton). OP Rosseland-mean opacities are compared with results from OPAL (Iglesias & Rogers) for the elements H, He, C, O, S and Fe. Overall, there is good agreement between OP and OPAL Rosseland-mean opacities for the 6-elements, but there are some differences. In particular, recent work (Bahcall et al.) has shown that helioseismology measurements give a very accurate value for the depth of the solar convection zone and that solar models give agreement with that value only if opacities there are about 7% larger than OPAL values. For the 6-element mix, here, we obtain Rosseland-mean opacities to be larger than OPAL by 5%.

  2. BlackjackBench: Portable Hardware Characterization with Automated Results Analysis

    E-Print Network [OSTI]

    Dongarra, Jack

    ForReview Only BlackjackBench: Portable Hardware Characterization with Automated Results Analysis-Benchmarks, Hardware Characterization, Statistical Analysis #12;ForReview Only BlackjackBench: Portable Hardware characterizes the targetted hardware and optimizes the application codes accordingly. We present the Blackjack

  3. RHIC electron lens test bench diagnostics

    SciTech Connect (OSTI)

    Gassner, D.; Beebe, E.; Fischer, W.; Gu, X.; Hamdi, K.; Hock, J.; Liu, C.; Miller, T.; Pikin, A.; Thieberger, P.

    2011-05-16

    An Electron Lens (E-Lens) system will be installed in RHIC to increase luminosity by counteracting the head-on beam-beam interaction. The proton beam collisions at the RHIC experimental locations will introduce a tune spread due to a difference of tune shifts between small and large amplitude particles. A low energy electron beam will be used to improve luminosity and lifetime of the colliding beams by reducing the betatron tune shift and spread. In preparation for the Electron Lens installation next year, a test bench facility will be used to gain experience with many sub-systems. This paper will discuss the diagnostics related to measuring the electron beam parameters.

  4. Department of Transportation Pipeline and Hazardous Materials...

    Office of Environmental Management (EM)

    Transportation Pipeline and Hazardous Materials Safety Administration Activities Department of Transportation Pipeline and Hazardous Materials Safety Administration Activities...

  5. Pipeline MT Instructions Identification Number

    E-Print Network [OSTI]

    Hong, Don

    Pipeline MT Instructions Identification Number For identification purposes, you will be assigned a special identification number. M# You can activate your MT email, login to PipelineMT to register for classes or pay tuition and fees. Activating the MTSU Email and PipelineMT accounts: Visit the website

  6. Mobile sensor network to monitor wastewater collection pipelines

    E-Print Network [OSTI]

    Lim, Jungsoo

    2012-01-01

    Advanced pipeline monitoringDesign of mobile pipeline floating sensor SewerSnortIllustration of mobile pipeline floating sensor monitoring

  7. The optical interface of a photonic crystal: Modeling an opal with a stratified effective index

    E-Print Network [OSTI]

    Maurin, Isabelle; Laliotis, Athanasios; Bloch, Daniel

    2014-01-01

    An artificial opal is a compact arrangement of transparent spheres, and is an archetype of a three-dimensional photonic crystal. Here, we describe the optics of an opal using a flexible model based upon a stratified medium whose (effective) index is governed by the opal density in a small planar slice of the opal. We take into account the effect of the substrate and assume a well- controlled number of layers, as it occurs for an opal fabricated by Langmuir-Blodgett deposition. The calculations are performed with transfer matrices, and an absorptive component in the effective index is introduced to account for the light scattering. This one-dimensional formalism allows quantitative predictions for reflection and transmission, notably as a function of the ratio between the irradiation wavelength and the sphere diameter, or as a function of the incidence angle or of the polarization. It can be used for an irradiation from the substrate side or from the vacuum side and can account for defect layers. The interface...

  8. OPAL: An Open-Source MPI-IO Library over Cray XT

    SciTech Connect (OSTI)

    Yu, Weikuan; Vetter, Jeffrey S; Canon, Richard Shane

    2007-01-01

    Parallel IO over Cray XT is supported by a vendor-supplied MPI-IO package. This package contains a proprietary ADIO implementation built on top of the sysio library. While it is reasonable to maintain a stable code base for application scientists' convenience, it is also very important to the system developers and researchers to analyze and assess the effectiveness of parallel IO software, and accordingly, tune and optimize the MPI-IO implementation. A proprietary parallel IO code base relinquishes such flexibilities. On the other hand, a generic UFS-based MPI-IO implementation is typically used on many Linux-based platforms. We have developed an open-source MPI-IO package over Lustre, referred to as OPAL (OPportunistic and Adaptive MPI-IO Library over Lustre). OPAL provides a single source-code base for MPI-IO over Lustre on Cray XT and Linux platforms. Compared to Cray implementation, OPAL provides a number of good features, including arbitrary specification of striping patterns and Lustre-stripe aligned file domain partitioning. This paper presents the performance comparisons between OPAL and Cray's proprietary implementation. Our evaluation demonstrates that OPAL achieves the performance comparable to the Cray implementation. We also exemplify the benefits of an open source package in revealing the underpinning of the parallel IO performance.

  9. Improving Efficiency of Tube Drawing Bench | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    small-diameter stainless steel tubing, conducted an in-house system performance optimization project to improve the efficiency of its No. 6 tube drawing bench. This four-page...

  10. Design of test bench apparatus for piezoelectric energy harvesters

    E-Print Network [OSTI]

    Yoon, You C. (You Chang)

    2013-01-01

    This thesis presents the design and analysis of an experimental test bench for the characterization of piezoelectric microelectromechanical system (MEMS) energy harvester being developed by the Micro & Nano Systems Laboratory ...

  11. Bench Scale Integration Presentation for BETO 2015 Project Peer...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    bioconversion scalemethod Bench scale Batch Pilot scale Fed-batch Bioconversion Volumetric Productivity (gL-hr) 0.29 0.4 Lipid Content (wt%) 57% 60% Glucose to Product total...

  12. The SINFONI pipeline

    E-Print Network [OSTI]

    Andrea Modigliani; Wolfgang Hummel; Roberto Abuter; Paola Amico; Pascal Ballester; Richard Davies; Christophe Dumas; Mattew Horrobin; Mark Neeser; Markus Kissler-Patig; Michele Peron; Juha Rehunanen; Juergen Schreiber; Thomas Szeifert

    2007-02-05

    The SINFONI data reduction pipeline, as part of the ESO-VLT Data Flow System, provides recipes for Paranal Science Operations, and for Data Flow Operations at Garching headquarters. At Paranal, it is used for the quick-look data evaluation. For Data Flow Operations, it fulfills several functions: creating master calibrations; monitoring instrument health and data quality; and reducing science data for delivery to service mode users. The pipeline is available to the science community for reprocessing data with personalised reduction strategies and parameters. The pipeline recipes can be executed either with EsoRex at the command line level or through the Gasgano graphical user interface. The recipes are implemented with the ESO Common Pipeline Library (CPL). SINFONI is the Spectrograph for INtegral Field Observations in the Near Infrared (1.1-2.45 um) at the ESO-VLT. SINFONI was developed and build by ESO and MPE in collaboration with NOVA. It consists of the SPIFFI integral field spectrograph and an adaptive optics module which allows diffraction limited and seeing limited observations. The image slicer of SPIFFI chops the SINFONI field of view on the sky in 32 slices which are re-arranged to a pseudo slit. The latter is dispersed by one of the four possible gratings (J, H, K, H+K). The detector thus sees a spatial dimension (along the pseudo-slit) and a spectral dimension. We describe in this paper the main data reduction procedures of the SINFONI pipeline, which is based on SPRED - the SPIFFI data reduction software developed by MPE, and the most recent developments after more than a year of SINFONI operations.

  13. The PMMA opal film was infiltrated with SiO2 using a homemade CVD setup operating at atmospheric pressure and room temperature

    E-Print Network [OSTI]

    The PMMA opal film was infiltrated with SiO2 using a homemade CVD setup operating at atmospheric. HRSEM was used to observe the alterations in the opal structure. Before examination, samples had been

  14. Abstract--A mesochronous pipeline scheme is described in this paper. In a conventional pipeline scheme each pipeline stage

    E-Print Network [OSTI]

    Delgado-Frias, Jos G.

    Abstract-- A mesochronous pipeline scheme is described in this paper. In a conventional pipeline scheme each pipeline stage operates on only one data set at a time. In the mesochronous scheme, pipeline stages operate on multiple data sets simultaneously. The clock period in conventional pipeline scheme

  15. Resonant infiltration of an opal: reflection lineshape and contribution from in-depth regions

    E-Print Network [OSTI]

    Maurin, Isabelle

    2015-01-01

    We analyze the resonant variation of the optical reflection on an infiltrated artificial opal made of transparent nanospheres. The resonant infiltration is considered as a perturbation in the frame of a previously described one-dimensional model based upon a stratified effective index. We show that for a thin slice of resonant medium, the resonant response oscillates with the position of this slice. We derive that for adequate conditions of incidence angle, this spatially oscillating behavior matches the geometrical periodicity of the opal, and hence the related density of resonant infiltration. Close to these matching conditions, the resonant response of the global infiltration varies sharply in amplitude and shape with the incidence angle and polarization. The corresponding resonant reflection originates from a rather deep infiltration, up to several wavelengths or layers of spheres. Finally, we discuss the relationship between the present predictions and our previous observations on an opal infiltrated wit...

  16. Secondary emission from synthetic opal infiltrated by colloidal gold and glycine

    E-Print Network [OSTI]

    Dovbeshko, G; Boyko, V; Romanyuk, V; Gorelik, V; Moiseyenko, V; Sobolev, V; Shvalagin, V

    2012-01-01

    A comparison of the secondary emission (photoluminescence) and Bragg reflection spectra of photonic crystals (PC), namely, synthetic opals, opals infiltrated by colloidal gold, glycine, and a complex of colloidal gold with glycine is performed. The infiltration of colloidal gold and a complex of colloidal gold with glycine into the pores of PC causes a short-wavelength shift (about 5-15 nm) of the Bragg reflection and increases the intensity of this band by 1.5-3 times. In photoluminescence, the infiltration of PC by colloidal gold and colloidal gold with glycine suppresses the PC emission band near 375-450 nm and enhances the shoulder of the stop-zone band of PC in the region of 470-510 nm. The shape of the observed PC emission band connected with defects in synthetic opal is determined by the type of infiltrates and the excitation wavelength. Possible mechanisms of the effects are discussed.

  17. Comparison of radiative accelerations obtained with atomic data from OP and OPAL

    E-Print Network [OSTI]

    Franck Delahaye; Marc Pinsonneault

    2004-11-30

    Here, we compare radiative accelerations (g_rad) derived from the new Opacity Project (OP) data with those computed from OPAL and some previous data from OP. For the case where we have full data from OPAL, the differences in the Rosseland mean opacities between OPAL and the new OP data are within 12% and less than 30% between new OP and previous OP data (OP1 at CDS). The radiative accelerations g_rad differ at up to the 17% level when compared to OPAL and up to the 38% level when compared to OP1. The comparison with OP1 on a larger (rho-T) space gives a difference of up to 40% for g_rad(C). And it increases for heavier elements. The differences increase for heavier elements reaching 60% for Si and 65% for S and Fe. We also constructed four representative stellar models in order to compare the new OP accelerations with prior published results that used OPAL data. The Rosseland means overall agree better than 10% for all of our cases. For the accelerations, the comparisons with published values yield larger differences in general. The published OPAL accelerations for carbon are even larger relative to OP compare to what our direct comparisons would indicate. Potential reasons for this puzzling behavior are discussed. In light of the significant differences in the inferred acceleration rates, theoretical errors should be taken into account when comparing models with observations. The implications for stellar evolution are briefly discussed. The sensitivity of g_rad to the atomic physics may provide a useful test of different opacity sources.

  18. Tantalum(V) Nitride Inverse Opals as Photonic Structures for Visible Wavelengths Alessandro Rugge, Jin-Seong Park, Roy G. Gordon,*, and Sarah H. Tolbert*,

    E-Print Network [OSTI]

    Tantalum(V) Nitride Inverse Opals as Photonic Structures for Visible Wavelengths Alessandro Rugge nanoscale waveguides. In this work we move toward that goal with the synthesis of an inverse opal thin film. Colloidal crystals, akin to the naturally occurring gem opal, diffract light at visible wave- lengths

  19. Design and Evaluation of Opal2: A Toolkit for Scientific Software as a Service Sriram Krishnan, Luca Clementi, Jingyuan Ren, Philip Papadopoulos and Wilfred Li

    E-Print Network [OSTI]

    Krishnan, Sriram

    Design and Evaluation of Opal2: A Toolkit for Scientific Software as a Service Sriram Krishnan. Opal2 is a toolkit for wrapping scientific applications as Web services on Grid and cloud computing machine images. In this paper, we describe the overall philosophy and architecture of the Opal2 framework

  20. Band structure and optical properties of opal photonic crystals E. Pavarini, L. C. Andreani, C. Soci, M. Galli, and F. Marabelli

    E-Print Network [OSTI]

    Band structure and optical properties of opal photonic crystals E. Pavarini, L. C. Andreani, C of opal photonic crystals with fcc structure and 111 surface orientation is presented. It is based corresponding to the excitation of photonic modes in the crystal . Reflectance measurements on artificial opals

  1. Instrumented Pipeline Initiative

    SciTech Connect (OSTI)

    Thomas Piro; Michael Ream

    2010-07-31

    This report summarizes technical progress achieved during the cooperative agreement between Concurrent Technologies Corporation (CTC) and U.S. Department of Energy to address the need for a for low-cost monitoring and inspection sensor system as identified in the Department of Energy (DOE) National Gas Infrastructure Research & Development (R&D) Delivery Reliability Program Roadmap.. The Instrumented Pipeline Initiative (IPI) achieved the objective by researching technologies for the monitoring of pipeline delivery integrity, through a ubiquitous network of sensors and controllers to detect and diagnose incipient defects, leaks, and failures. This report is organized by tasks as detailed in the Statement of Project Objectives (SOPO). The sections all state the objective and approach before detailing results of work.

  2. The SDSS Imaging Pipelines

    E-Print Network [OSTI]

    Robert Lupton; James E. Gunn; Zeljko Ivezic; Gillian R. Knapp; Stephen Kent; Naoki Yasuda

    2001-05-24

    We summarise the properties of the Sloan Digital Sky Survey (SDSS) project, discuss our software infrastructure, and outline the architecture of the SDSS image processing pipelines. We then discuss two of the algorithms used in the SDSS image processing; the KL-transform based modelling of the spatial variation of the PSF, and the use of galaxy models in star/galaxy separation. We conclude with the first author's personal opinions on the challenges that the astronomical community faces with major software projects.

  3. Leaking Pipelines: Doctoral Student Family Formation

    E-Print Network [OSTI]

    Serrano, Christyna M.

    2008-01-01

    Sari M. Why the Academic Pipeline Leaks: Fewer Men thanone reason the academic pipeline leaks. 31 Blair-Loy, Mary.to leak out of the academic pipeline. The term academic

  4. RNA-Seq Pipeline in Galaxy

    E-Print Network [OSTI]

    Meng, Xiandong

    2014-01-01

    Assembly in Galaxy RNA-Seq q Pipeline p QC : To find outRNA-Seq Pipeline in Galaxy Xiandong Meng 1 , Jeffrey Martinof California RNA--Seq Pipeline in Galaxy RNA Xiandong Meng

  5. Opportunities for Materials Science and Biological Research at the OPAL Research Reactor

    SciTech Connect (OSTI)

    Kennedy, S. J.

    2008-03-17

    Neutron scattering techniques have evolved over more than 1/2 century into a powerful set of tools for determination of atomic and molecular structures. Modern facilities offer the possibility to determine complex structures over length scales from {approx}0.1 nm to {approx}500 nm. They can also provide information on atomic and molecular dynamics, on magnetic interactions and on the location and behaviour of hydrogen in a variety of materials. The OPAL Research Reactor is a 20 megawatt pool type reactor using low enriched uranium fuel, and cooled by water. OPAL is a multipurpose neutron factory with modern facilities for neutron beam research, radioisotope production and irradiation services. The neutron beam facility has been designed to compete with the best beam facilities in the world. After six years in construction, the reactor and neutron beam facilities are now being commissioned, and we will commence scientific experiments later this year. The presentation will include an outline of the strengths of neutron scattering and a description of the OPAL research reactor, with particular emphasis on it's scientific infrastructure. It will also provide an overview of the opportunities for research in materials science and biology that will be possible at OPAL, and mechanisms for accessing the facilities. The discussion will emphasize how researchers from around the world can utilize these exciting new facilities.

  6. Thermoelectric properties of highly doped n-type polysilicon inverse opals

    SciTech Connect (OSTI)

    Ma, J; Sinha, S

    2012-10-01

    Nanostructured single-crystal silicon exhibits a remarkable increase in the figure of merit for thermoelectric energy conversion. Here we theoretically investigate a similar enhancement for polycrystalline silicon inverse opals. An inverse opal provides nanoscale grains and a thin-film like geometry to scatter phonons preferentially over electrons. Using solutions to the Boltzmann transport equation for electrons and phonons, we show that the figure of merit at 300 K is fifteen times that of bulk single-crystal silicon. Our models predict that grain boundaries are more effective than surfaces in enhancing the figure of merit. We provide insight into this effect and show that preserving a grain size smaller than the shell thickness of the inverse opal increases the figure of merit by as much as 50% when the ratio between the two features is a third. At 600 K, the figure of merit is as high as 0.6 for a shell thickness of 10 nm. This work advances the fundamental understanding of charge and heat transport in nanostructured inverse opals. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4758382

  7. Machinist Pipeline/Apprentice Program Program Description

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Machinist PipelineApprentice Program Program Description The Machinist Pipeline Program was created by the Prototype Fabrication Division to fill a critical need for skilled...

  8. Infiltrating a thin or single layer opal with an atomic vapour: sub-doppler signals and crystal optics

    E-Print Network [OSTI]

    Moufarej, Elias; Zabkov, Ilya; Laliotis, Athanasios; Ballin, Philippe; Klimov, Vasily; Bloch, Daniel

    2014-01-01

    Artificial thin glass opals can be infiltrated with a resonant alkali-metal vapour, providing novel types of hybrid systems. The reflection at the interface between the substrate and the opal yields a resonant signal, which exhibits sub-Doppler structures in linear spectroscopy for a range of oblique incidences. This result is suspected to originate in an effect of the three-dimensional confinement of the vapour in the opal interstices. It is here extended to a situation where the opal is limited to a few or even a single layer opal film, which is a kind of bidimensional grating. We have developed a flexible one-dimensional layered optical model, well suited for a Langmuir-Blodgett opal. Once extended to the case of a resonant infiltration, the model reproduces quick variations of the lineshape with incidence angle or polarization. Alternately, for an opal limited to a single layer of identical spheres, a three-dimensional numerical calculation was developed. It predicts crystalline anisotropy, which is demon...

  9. INTERNAL REPAIR OF PIPELINES

    SciTech Connect (OSTI)

    Bill Bruce; Nancy Porter; George Ritter; Matt Boring; Mark Lozev; Ian Harris; Bill Mohr; Dennis Harwig; Robin Gordon; Chris Neary; Mike Sullivan

    2005-07-20

    The two broad categories of fiber-reinforced composite liner repair and deposited weld metal repair technologies were reviewed and evaluated for potential application for internal repair of gas transmission pipelines. Both are used to some extent for other applications and could be further developed for internal, local, structural repair of gas transmission pipelines. Principal conclusions from a survey of natural gas transmission industry pipeline operators can be summarized in terms of the following performance requirements for internal repair: (1) Use of internal repair is most attractive for river crossings, under other bodies of water, in difficult soil conditions, under highways, under congested intersections, and under railway crossings. (2) Internal pipe repair offers a strong potential advantage to the high cost of horizontal direct drilling when a new bore must be created to solve a leak or other problem. (3) Typical travel distances can be divided into three distinct groups: up to 305 m (1,000 ft.); between 305 m and 610 m (1,000 ft. and 2,000 ft.); and beyond 914 m (3,000 ft.). All three groups require pig-based systems. A despooled umbilical system would suffice for the first two groups which represents 81% of survey respondents. The third group would require an onboard self-contained power unit for propulsion and welding/liner repair energy needs. (4) The most common size range for 80% to 90% of operators surveyed is 508 mm (20 in.) to 762 mm (30 in.), with 95% using 558.8 mm (22 in.) pipe. Evaluation trials were conducted on pipe sections with simulated corrosion damage repaired with glass fiber-reinforced composite liners, carbon fiber-reinforced composite liners, and weld deposition. Additional un-repaired pipe sections were evaluated in the virgin condition and with simulated damage. Hydrostatic failure pressures for pipe sections repaired with glass fiber-reinforced composite liner were only marginally greater than that of pipe sections without liners, indicating that this type of liner is only marginally effective at restoring the pressure containing capabilities of pipelines. Failure pressures for larger diameter pipe repaired with a semi-circular patch of carbon fiber-reinforced composite lines were also marginally greater than that of a pipe section with un-repaired simulated damage without a liner. These results indicate that fiber reinforced composite liners have the potential to increase the burst pressure of pipe sections with external damage Carbon fiber based liners are viewed as more promising than glass fiber based liners because of the potential for more closely matching the mechanical properties of steel. Pipe repaired with weld deposition failed at pressures lower than that of un-repaired pipe in both the virgin and damaged conditions, indicating that this repair technology is less effective at restoring the pressure containing capability of pipe than a carbon fiber-reinforced liner repair. Physical testing indicates that carbon fiber-reinforced liner repair is the most promising technology evaluated to-date. In lieu of a field installation on an abandoned pipeline, a preliminary nondestructive testing protocol is being developed to determine the success or failure of the fiber-reinforced liner pipeline repairs. Optimization and validation activities for carbon-fiber repair methods are ongoing.

  10. IRAN: laboratory test bench for hypertelescope pupil-plane recombination

    E-Print Network [OSTI]

    Liske, Jochen

    -apertures illuminated by laser sources are recombined using the IRAN scheme. The validation of the IRAN recombinationIRAN: laboratory test bench for hypertelescope pupil-plane recombination F. Allouchea,b, F. Vakilib-Antipolis, CNRS UMR 6525 Parc Valrose, 06108 Nice Cedex 2, France ABSTRACT In 2004, our group proposed IRAN

  11. BlackjackBench: Portable Hardware Characterization with Automated

    E-Print Network [OSTI]

    Luszczek, Piotr

    BlackjackBench: Portable Hardware Characterization with Automated Results' Analysis ANTHONY DANALIS. Such a compiler automatically characterizes the targetted hardware and optimizes the application codes accordingly discover the effective sizes and speeds of the hardware environment rather than the often unattainable peak

  12. Transforming an Object-Oriented Pipeline to a Master-Worker: The State-Based Pipeline

    E-Print Network [OSTI]

    MacDonald, Steve

    Transforming an Object-Oriented Pipeline to a Master-Worker: The State-Based Pipeline Steve Mac in such an algorithm is exposed using a pipeline [5, 6, 7]. The pipeline is a conceptually simple parallel structure in their education. However, expert parallel programmers typically eschew using the pipeline structure, especially

  13. Transforming an ObjectOriented Pipeline to a MasterWorker: The StateBased Pipeline

    E-Print Network [OSTI]

    MacDonald, Steve

    Transforming an ObjectOriented Pipeline to a MasterWorker: The StateBased Pipeline Steve Mac in such an algorithm is exposed using a pipeline [5, 6, 7]. The pipeline is a conceptually simple parallel structure in their education. However, expert parallel programmers typically eschew using the pipeline structure, especially

  14. ASYNCHRONOUS WAVE PIPELINES FOR HIGH THROUGHPUT DATAPATHS

    E-Print Network [OSTI]

    Huss, Sorin A.

    ASYNCHRONOUS WAVE PIPELINES FOR HIGH THROUGHPUT DATAPATHS O. Hauck and S. A. Huss fhauck j hussg pipeline architecture for highspeed clockless computation is proposed. It features gatelevel pipelining the advantages of wave pipelining and asynchronous operation, i. e. very high throughput at low latency while

  15. Continuous Pipelines at Google Dan Dennison

    E-Print Network [OSTI]

    Cortes, Corinna

    Continuous Pipelines at Google Dan Dennison dennison@google.com 12 May 2015 Table of Contents Abstract for SREcon Europe 2015 Abstract Origin of the Pipeline Design Pattern Initial Effect of Big Data on the Simple Pipeline Pattern Challenges to the Periodic Pipeline Pattern Trouble Caused

  16. Natural gas pipeline technology overview.

    SciTech Connect (OSTI)

    Folga, S. M.; Decision and Information Sciences

    2007-11-01

    The United States relies on natural gas for one-quarter of its energy needs. In 2001 alone, the nation consumed 21.5 trillion cubic feet of natural gas. A large portion of natural gas pipeline capacity within the United States is directed from major production areas in Texas and Louisiana, Wyoming, and other states to markets in the western, eastern, and midwestern regions of the country. In the past 10 years, increasing levels of gas from Canada have also been brought into these markets (EIA 2007). The United States has several major natural gas production basins and an extensive natural gas pipeline network, with almost 95% of U.S. natural gas imports coming from Canada. At present, the gas pipeline infrastructure is more developed between Canada and the United States than between Mexico and the United States. Gas flows from Canada to the United States through several major pipelines feeding U.S. markets in the Midwest, Northeast, Pacific Northwest, and California. Some key examples are the Alliance Pipeline, the Northern Border Pipeline, the Maritimes & Northeast Pipeline, the TransCanada Pipeline System, and Westcoast Energy pipelines. Major connections join Texas and northeastern Mexico, with additional connections to Arizona and between California and Baja California, Mexico (INGAA 2007). Of the natural gas consumed in the United States, 85% is produced domestically. Figure 1.1-1 shows the complex North American natural gas network. The pipeline transmission system--the 'interstate highway' for natural gas--consists of 180,000 miles of high-strength steel pipe varying in diameter, normally between 30 and 36 inches in diameter. The primary function of the transmission pipeline company is to move huge amounts of natural gas thousands of miles from producing regions to local natural gas utility delivery points. These delivery points, called 'city gate stations', are usually owned by distribution companies, although some are owned by transmission companies. Compressor stations at required distances boost the pressure that is lost through friction as the gas moves through the steel pipes (EPA 2000). The natural gas system is generally described in terms of production, processing and purification, transmission and storage, and distribution (NaturalGas.org 2004b). Figure 1.1-2 shows a schematic of the system through transmission. This report focuses on the transmission pipeline, compressor stations, and city gates.

  17. About U.S. Natural Gas Pipelines

    Reports and Publications (EIA)

    2007-01-01

    This information product provides the interested reader with a broad and non-technical overview of how the U.S. natural gas pipeline network operates, along with some insights into the many individual pipeline systems that make up the network. While the focus of the presentation is the transportation of natural gas over the interstate and intrastate pipeline systems, information on subjects related to pipeline development, such as system design and pipeline expansion, are also included.

  18. INTERNAL REPAIR OF PIPELINES

    SciTech Connect (OSTI)

    Robin Gordon; Bill Bruce; Ian Harris; Dennis Harwig; George Ritter; Bill Mohr; Matt Boring; Nancy Porter; Mike Sullivan; Chris Neary

    2004-12-31

    The two broad categories of fiber-reinforced composite liner repair and deposited weld metal repair technologies were reviewed and evaluated for potential application for internal repair of gas transmission pipelines. Both are used to some extent for other applications and could be further developed for internal, local, structural repair of gas transmission pipelines. Principal conclusions from a survey of natural gas transmission industry pipeline operators can be summarized in terms of the following performance requirements for internal repair: (1) Use of internal repair is most attractive for river crossings, under other bodies of water, in difficult soil conditions, under highways, under congested intersections, and under railway crossings. (2) Internal pipe repair offers a strong potential advantage to the high cost of horizontal direct drilling when a new bore must be created to solve a leak or other problem. (3) Typical travel distances can be divided into three distinct groups: up to 305 m (1,000 ft.); between 305 m and 610 m (1,000 ft. and 2,000 ft.); and beyond 914 m (3,000 ft.). All three groups require pig-based systems. A despooled umbilical system would suffice for the first two groups which represents 81% of survey respondents. The third group would require an onboard self-contained power unit for propulsion and welding/liner repair energy needs. (4) The most common size range for 80% to 90% of operators surveyed is 508 mm (20 in.) to 762 mm (30 in.), with 95% using 558.8 mm (22 in.) pipe. Evaluation trials were conducted on pipe sections with simulated corrosion damage repaired with glass fiber-reinforced composite liners, carbon fiber-reinforced composite liners, and weld deposition. Additional un-repaired pipe sections were evaluated in the virgin condition and with simulated damage. Hydrostatic failure pressures for pipe sections repaired with glass fiber-reinforced composite liner were only marginally greater than that of pipe sections without liners, indicating that this type of liner is only marginally effective at restoring the pressure containing capabilities of pipelines. Failure pressures for larger diameter pipe repaired with a semi-circular patch of carbon fiber-reinforced composite lines were also marginally greater than that of a pipe section with un-repaired simulated damage without a liner. These results indicate that fiber reinforced composite liners have the potential to increase the burst pressure of pipe sections with external damage Carbon fiber based liners are viewed as more promising than glass fiber based liners because of the potential for more closely matching the mechanical properties of steel. Pipe repaired with weld deposition failed at pressures lower than that of un-repaired pipe in both the virgin and damaged conditions, indicating that this repair technology is less effective at restoring the pressure containing capability of pipe than a carbon fiber-reinforced liner repair. Physical testing indicates that carbon fiber-reinforced liner repair is the most promising technology evaluated to-date. The first round of optimization and validation activities for carbon-fiber repairs are complete. Development of a comprehensive test plan for this process is recommended for use in the field trial portion of this program.

  19. INTERNAL REPAIR OF PIPELINES

    SciTech Connect (OSTI)

    Robin Gordon; Bill Bruce; Ian Harris; Dennis Harwig; George Ritter; Bill Mohr; Matt Boring; Nancy Porter; Mike Sullivan; Chris Neary

    2004-08-17

    The two broad categories of fiber-reinforced composite liner repair and deposited weld metal repair technologies were reviewed and evaluated for potential application for internal repair of gas transmission pipelines. Both are used to some extent for other applications and could be further developed for internal, local, structural repair of gas transmission pipelines. Principal conclusions from a survey of natural gas transmission industry pipeline operators can be summarized in terms of the following performance requirements for internal repair: (1) Use of internal repair is most attractive for river crossings, under other bodies of water, in difficult soil conditions, under highways, under congested intersections, and under railway. (2) Internal pipe repair offers a strong potential advantage to the high cost of horizontal direct drilling when a new bore must be created to solve a leak or other problem. (3) Typical travel distances can be divided into three distinct groups: up to 305 m (1,000 ft.); between 305 m and 610 m (1,000 ft. and 2,000 ft.); and beyond 914 m (3,000 ft.). All three groups require pig-based systems. A despooled umbilical system would suffice for the first two groups which represents 81% of survey respondents. The third group would require an onboard self-contained power unit for propulsion and welding/liner repair energy needs. (4) The most common size range for 80% to 90% of operators surveyed is 508 mm (20 in.) to 762 mm (30 in.), with 95% using 558.8 mm (22 in.) pipe. Evaluation trials were conducted on pipe sections with simulated corrosion damage repaired with glass fiber-reinforced composite liners, carbon fiber-reinforced composite liners, and weld deposition. Additional un-repaired pipe sections were evaluated in the virgin condition and with simulated damage. Hydrostatic failure pressures for pipe sections repaired with glass fiber-reinforced composite liner were only marginally greater than that of pipe sections without liners, indicating that this type of liner is only marginally effective at restoring the pressure containing capabilities of pipelines. Failure pressures for larger diameter pipe repaired with a semi-circular patch of carbon fiber-reinforced composite lines were also marginally greater than that of a pipe section with un-repaired simulated damage without a liner. These results indicate that fiber reinforced composite liners have the potential to increase the burst pressure of pipe sections with external damage Carbon fiber based liners are viewed as more promising than glass fiber based liners because of the potential for more closely matching the mechanical properties of steel. Pipe repaired with weld deposition failed at pressures lower than that of un-repaired pipe in both the virgin and damaged conditions, indicating that this repair technology is less effective at restoring the pressure containing capability of pipe than a carbon fiber-reinforced liner repair. Physical testing indicates that carbon fiber-reinforced liner repair is the most promising technology evaluated to-date. Development of a comprehensive test plan for this process is recommended for use in the field trial portion of this program.

  20. INTERNAL REPAIR OF PIPELINES

    SciTech Connect (OSTI)

    Robin Gordon; Bill Bruce; Ian Harris; Dennis Harwig; Nancy Porter; Mike Sullivan; Chris Neary

    2004-04-12

    The two broad categories of deposited weld metal repair and fiber-reinforced composite liner repair technologies were reviewed for potential application for internal repair of gas transmission pipelines. Both are used to some extent for other applications and could be further developed for internal, local, structural repair of gas transmission pipelines. Preliminary test programs were developed for both deposited weld metal repair and for fiber-reinforced composite liner repair. Evaluation trials have been conducted using a modified fiber-reinforced composite liner provided by RolaTube and pipe sections without liners. All pipe section specimens failed in areas of simulated damage. Pipe sections containing fiber-reinforced composite liners failed at pressures marginally greater than the pipe sections without liners. The next step is to evaluate a liner material with a modulus of elasticity approximately 95% of the modulus of elasticity for steel. Preliminary welding parameters were developed for deposited weld metal repair in preparation of the receipt of Pacific Gas & Electric's internal pipeline welding repair system (that was designed specifically for 559 mm (22 in.) diameter pipe) and the receipt of 559 mm (22 in.) pipe sections from Panhandle Eastern. The next steps are to transfer welding parameters to the PG&E system and to pressure test repaired pipe sections to failure. A survey of pipeline operators was conducted to better understand the needs and performance requirements of the natural gas transmission industry regarding internal repair. Completed surveys contained the following principal conclusions: (1) Use of internal weld repair is most attractive for river crossings, under other bodies of water, in difficult soil conditions, under highways, under congested intersections, and under railway crossings. (2) Internal pipe repair offers a strong potential advantage to the high cost of horizontal direct drilling (HDD) when a new bore must be created to solve a leak or other problem. (3) Typical travel distances can be divided into three distinct groups: up to 305 m (1,000 ft.); between 305 m and 610 m (1,000 ft. and 2,000 ft.); and beyond 914 m (3,000 ft.). All three groups require pig-based systems. A despooled umbilical system would suffice for the first two groups which represents 81% of survey respondents. The third group would require an onboard self-contained power unit for propulsion and welding/liner repair energy needs. (4) Pipe diameter sizes range from 50.8 mm (2 in.) through 1,219.2 mm (48 in.). The most common size range for 80% to 90% of operators surveyed is 508 mm to 762 mm (20 in. to 30 in.), with 95% using 558.8 mm (22 in.) pipe. An evaluation of potential repair methods clearly indicates that the project should continue to focus on the development of a repair process involving the use of GMAW welding and on the development of a repair process involving the use of fiber-reinforced composite liners.

  1. The pipeline and future of drug development in schizophrenia

    E-Print Network [OSTI]

    Gray, J A; Roth, B L

    2007-01-01

    The Pipeline and Future of Drug Development in SchizophreniaThe Drug Discovery Pipeline in Schizophrenia Keywords:discuss the current pipeline of drugs for schizophrenia,

  2. Piko: A Framework for Authoring Programmable Graphics Pipelines

    E-Print Network [OSTI]

    Patney, Anjul; Tzeng, Stanley; Seitz, Kerry A. Jr.; Owens, John D.

    2015-01-01

    of image processing pipelines. ACM Transactions on Graphicsgrain scheduling of pipeline parallelism. In Proceedings ofmodel for graphics pipelines. ACM Transactions on Graphics

  3. Hydrogen permeability and Integrity of hydrogen transfer pipelines...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    permeability and Integrity of hydrogen transfer pipelines Hydrogen permeability and Integrity of hydrogen transfer pipelines Presentation by 03-Babu for the DOE Hydrogen Pipeline...

  4. Diffraction anomalies in hybrid structures based on chalcogenide-coated opal photonic crystals

    E-Print Network [OSTI]

    Voronov, M M; Yakovlev, S A; Kurdyukov, D A; Golubev, V G

    2014-01-01

    The results of spectroscopic studies of the diffraction anomalies (the so-called resonant Wood anomalies) in spatially-periodic hybrid structures based on halcogenide (GST225)-coated opal films of various thickness are presented. A theoretical analysis of spectral-angular dependencies of the Wood anomalies has been made by means of a phenomenological approach using the concept of the effective refractive index of waveguiding surface layer.

  5. Decoupled Sampling for Graphics Pipelines

    E-Print Network [OSTI]

    Ragan-Kelley, Jonathan Millar

    We propose a generalized approach to decoupling shading from visibility sampling in graphics pipelines, which we call decoupled sampling. Decoupled sampling enables stochastic supersampling of motion and defocus blur at ...

  6. PIPELINES AS COMMUNICATION NETWORK LINKS

    SciTech Connect (OSTI)

    Kelvin T. Erickson; Ann Miller; E. Keith Stanek; C.H. Wu; Shari Dunn-Norman

    2005-03-14

    This report presents the results of an investigation into two methods of using the natural gas pipeline as a communication medium. The work addressed the need to develop secure system monitoring and control techniques between the field and control centers and to robotic devices in the pipeline. In the first method, the pipeline was treated as a microwave waveguide. In the second method, the pipe was treated as a leaky feeder or a multi-ground neutral and the signal was directly injected onto the metal pipe. These methods were tested on existing pipeline loops at UMR and Batelle. The results reported in this report indicate the feasibility of both methods. In addition, a few suitable communication link protocols for this network were analyzed.

  7. A synoptic comparison of the MHD and the OPAL equations of state

    E-Print Network [OSTI]

    R. Trampedach; W. Dappen; V. A. Baturin

    2006-04-28

    A detailed comparison is carried out between two popular equations of state (EOS), the Mihalas-Hummer-Dappen (MHD) and the OPAL equations of state, which have found widespread use in solar and stellar modeling during the past two decades. They are parts of two independent efforts to recalculate stellar opacities; the international Opacity Project (OP) and the Livermore-based OPAL project. We examine the difference between the two equations of state in a broad sense, over the whole applicable rho-T range, and for three different chemical mixtures. Such a global comparison highlights both their differences and their similarities. We find that omitting a questionable hard-sphere correction, tau, to the Coulomb interaction in the MHD formulation, greatly improves the agreement between the MHD and OPAL EOS. We also find signs of differences that could stem from quantum effects not yet included in the MHD EOS, and differences in the ionization zones that are probably caused by differences in the mechanisms for pressure ionization. Our analysis do not only give a clearer perception of the limitations of each equation of state for astrophysical applications, but also serve as guidance for future work on the physical issues behind the differences. The outcome should be an improvement of both equations of state.

  8. Conversion of the luminescence of laser dyes in opal matrices to stimulated emission

    SciTech Connect (OSTI)

    Alimov, O K; Basiev, T T; Orlovskii, Yu V; Osiko, V V; Samoilovich, M I

    2008-07-31

    The luminescence and laser characteristics of a synthetic opal matrix filled with organic dyes are studied upon excitation by nanosecond laser pulses. The appearance of stimulated emission in a partially ordered scattering medium is investigated. It is shown that if the luminescence spectrum of a dye (oxazine-17) is located far outside the photonic bandgap of the opal matrix, stimulated emission along a preferential direction in the (111) plane is observed when pumping exceeds a threshold even without an external optical cavity. The stimulated emission spectrum is considerably narrower than the luminescence spectrum and consists of several narrow lines located within the dye luminescence band. If the luminescence spectrum of a dye (rhodamine 6G) overlaps with the photonic bandgap of the opal matrix, a different picture is observed. The loss of radiation in the matrix leads to the red shift of the luminescence spectrum, while the stimulated emission as in the case of oxazine-17 lies is observed within the luminescence band. (active media, lasers, and amplifiers)

  9. Unique pathway of expression of an opal suppressor phosphoserine tRNA

    SciTech Connect (OSTI)

    Lee, B.J.; De La Pena, P.; Tobian, J.A.; Zasloff, M.; Hatfield, D.

    1987-09-01

    An opal suppressor phosphoserine tRNA gene is present in single copy in the genomes of higher vertebrates. The authors have shown that the product of this gene functions as a suppressor in an in vitro assay, and they have proposed that it may donate a modified amino acid directly to protein in response to specific UGA codons. In this report, they show through in vitro and in vivo studies that the human and Xenopus opal suppressor phosphoserine tRNAs are synthesized by a pathway that is, to the best of our knowledge, unlike that of nay know eukaryotic tRNA. The primary transcript of this gene does not contain a 5'-leader sequence; and, therefore, transcription of this suppressor is initiated at the first nucleotide within the coding sequence. The 5'-terminal triphosphate, present on the primary transcript, remains intact through 3'-terminal maturation and through subsequent transport of the tRNA to the cytoplasm. The unique biosynthetic pathway of this opal suppressor may underlie its distinctive role in eukaryotic cells.

  10. Creating a pipeline rehabilitation plan

    SciTech Connect (OSTI)

    Marshall, W.F.

    1997-05-01

    This paper will highlight the various aspects of planning a pipeline rehabilitation project to maximize used resources. The paper will visit in some detail the aspect of pipeline data collection to make rehabilitation decisions, including intelligent pig data and its use, close interval survey and its use, hydrotest data and its use, etc. This paper will also review the analysis of the hydrotest data, the close interval survey data, and its meaning to the overall rehabilitation design and plan. The paper will also assess the various types of pipeline coatings and methods of recoating and typical and innovative cathodic protection methods. The paper will stress analysis of pipeline structural integrity prior to making rehabilitation decisions. It will review cost estimating for various types of pipeline rehabilitation, and look at various alternatives. Finally, this paper will review typical results from various types of rehabilitation and soil conditions. It will emphasize the need to assess the results of the different rehabilitation methods and detail the future pipeline rehabilitation project decision making. The paper will discuss the use of RAP sheets (rehabilitation analysis profile) for data review and suggest various methods to invest rehabilitation dollars to get the greatest quantity of rehabilitation work done for the least cost.

  11. Bench wear testing of engine power cylinder components

    SciTech Connect (OSTI)

    Patterson, D.J.; Hill, S.H.; Tung, S.C.

    1993-02-01

    A need exists for an accurate and repeatable friction and wear bench test for engine power cylinder components that more closely relates to engine test results. Current research and development includes investigation of new engine designs, materials, coatings and surface treatments for reduced weight, longer life, higher operating temperature, and reduced friction. Alternative fuels being examined include alcohols and gaseous fuels, as well as reformulated gasolines and distillate fuels. Concurrently, new lubricants are being formulated for the new engine and fuel combinations. Because of the enormous cost and time of developing commercial engine, fuel and lubricant combinations by means of engine testing alone, much interest is being focused on more representative and repeatable bench tests. This paper examines some known bench testers employing either rotary or reciprocating motion for evaluating the friction, wear, and durability of material couples. Information is presented on experience and practice with one rotary (Falex type) and two reciprocating testers (Cameron-Plint and a new design, the EMA-L59). Some correlation with engine data is given.

  12. Biogenic opal germanium/silicon ratios used to monitor upwelling intensity in Newport Lagoon section, Monterey Formation, California

    SciTech Connect (OSTI)

    Murnane, R.J.

    1986-04-01

    Empirical evidence and modeling of geochemical cycles of silicon (Si) and germanium (Ge) suggest that opal Ge/Si ratios record water Ge/Si ratios although some fractionation of germanium from silicon occurs during biogenic opal formation. Modeling results also suggest that opal Ge/Si ratios could record changes in upwelling intensity. In today's oceans, areas of high productivity associated with upwelling show relatively elevated surface-water nutrient concentrations, whereas areas of low productivity with restricted upwelling exhibit low surface-water nutrient concentrations. Fractionation of germanium from silicon during biogenic opal formation would cause the surface ocean's Ge/Si ratio to increase as surface-water nutrient concentrations are lowered. Diatomites from the Newport Lagoon section of the Monterey Formation were analyzed to test the hypothesis that biogenic opal Ge/Si ratios could be used to trace upwelling intensity. Diatom assemblages of the Monterey Formation vary with upwelling intensity over a time scale of millions of years. Samples collected from the middle and late Miocene have high ratios (up to 8 x 10/sup -7/) when diatom assemblages indicate relatively weak upwelling, and low ratios (less than 6 x 10/sup -7/) when diatom assemblages indicate relatively strong upwelling. These ratios agree with modeling predictions. Opal Ge/Si ratios may also record upwelling fluctuations on much shorter times scales. Adjacent, centimeter-scale, lighter and darker layers record past variations in biogenic and terrigenous inputs to ocean-bottom sediments. Opal Ge/Si ratios may indicate whether the darker layers result from a relative decrease in surface-water productivity in response to a reduction in upwelling intensity, or only from a relative increase in terrigenous detrital inputs.

  13. Mapco's NGL Rocky Mountain pipeline

    SciTech Connect (OSTI)

    Isaacs, S.F.

    1980-01-01

    The Rocky Mountain natural gas liquids (NGL) pipeline was born as a result of major producible gas finds in the Rocky Mountain area after gas deregulation. Gas discoveries in the overthurst area indicated considerable volumes of NGL would be available for transportation out of the area within the next 5 to 7 years. Mapco studied the need for a pipeline to the overthrust, but the volumes were not substantial at the time because there was little market and, consequently, little production for ethane. Since that time crude-based products for ethylene manufacture have become less competitive as a feed product on the world plastics market, and ethane demand has increased substantially. This change in the market has caused a major modification in the plans of the NGL producers and, consequently, the ethane content of the NGL stream for the overthrust area is expected to be 30% by volume at startup and is anticipated to be at 45% by 1985. These ethane volumes enhance the feasibility of the pipeline. The 1196-mile Rocky Mountain pipeline will be installed from the existing facility in W. Texas, near Seminole, to Rock Springs, Wyoming. A gathering system will connect the trunk line station to various plant locations. The pipeline development program calls for a capacity of 65,000 bpd by the end of 1981.

  14. Method and system for pipeline communication

    SciTech Connect (OSTI)

    Richardson; John G.

    2008-01-29

    A pipeline communication system and method includes a pipeline having a surface extending along at least a portion of the length of the pipeline. A conductive bus is formed to and extends along a portion of the surface of the pipeline. The conductive bus includes a first conductive trace and a second conductive trace with the first and second conductive traces being adapted to conformally couple with a pipeline at the surface extending along at least a portion of the length of the pipeline. A transmitter for sending information along the conductive bus on the pipeline is coupled thereto and a receiver for receiving the information from the conductive bus on the pipeline is also couple to the conductive bus.

  15. OMAE 1993: Proceedings. Volume 5: Pipeline technology

    SciTech Connect (OSTI)

    Yoon, M.; Murray, A.; Thygesen, J.

    1993-01-01

    This volume of conference proceedings is volume five of a five volume series dealing with offshore and arctic pipeline, marine riser, platforms, and ship design and engineering. This volume is a result of increased use of pipeline transportation for oil, gas, and liquid products and the resultant need for lower design and operating costs. Papers in this conference cover topics on environmental considerations, pipeline automation, computer simulation techniques, materials testing, corrosion protection, permafrost problems, pipeline integrity, geotechnical concerns, and offshore engineering problems.

  16. Coupling of Titania Inverse Opals to Nanocrystalline Titania Layers in Dye-Sensitized Solar Seung-Hyun Anna Lee, Neal M. Abrams,, Paul G. Hoertz,,4 Greg D. Barber,,

    E-Print Network [OSTI]

    Coupling of Titania Inverse Opals to Nanocrystalline Titania Layers in Dye-Sensitized Solar Cells-sensitized solar cells (DSSCs) that contain bilayers of nanocrystalline TiO2 (nc-TiO2) and titania inverse opal

  17. Trawler: de novo regulatory motif discovery pipeline

    E-Print Network [OSTI]

    Cai, Long

    Trawler: de novo regulatory motif discovery pipeline for chromatin immunoprecipitation Laurence, the fastest computational pipeline to date, to efficiently discover over-represented motifs in chromatin present the Trawler pipeline (Fig. 1a) that attempts the de novo identification of all over

  18. Squibs and Discussions Pipelines and Size Constraints

    E-Print Network [OSTI]

    Squibs and Discussions Pipelines and Size Constraints Ehud Reiter* University of Aberdeen Some. This can be a difficult constraint to enforce in a pipelined natural language generation (NLG) system of the pipeline, but size cannot be accurately measured until the document has been completely processed

  19. BDP: BrainSuite Diffusion Pipeline

    E-Print Network [OSTI]

    Leahy, Richard M.

    BDP: BrainSuite Diffusion Pipeline Chitresh Bhushan #12; Quantify microstructural tissue ROI Connectivity ROI Statistics MPRAGE Diffusion #12;Diffusion Pipeline Dicom to NIfTI Co ROIs Custom ROIs #12;Diffusion Pipeline Dicom to NIfTI Co-registration Diffusion Modeling Tractography

  20. Pipelined Asynchronous Circuits Andrew Matthew Lines

    E-Print Network [OSTI]

    Pipelined Asynchronous Circuits Andrew Matthew Lines June 1995, revised June 1998 This thesis building blocks for highly pipelined designs. The first chapter presents the implementation approach for individual cells. The second chapter in vestigates the time behavior of complex pipelined circuits

  1. Proceedings of IPC 2004 International Pipeline Conference

    E-Print Network [OSTI]

    Clapham, Lynann

    Proceedings of IPC 2004 International Pipeline Conference October 4 - 8, 2004 Calgary, Alberta) inspection tools have the potential to locate and characterize mechanical damage in pipelines. However, MFL The most common cause of pipeline failure in North America is mechanical damage: denting or gouging

  2. Calcite/opal deposits at Yucca Mountain, Nevada: Pedogenic or hypogene?

    SciTech Connect (OSTI)

    Hill, C.A.; Schluter, C.M.; Harmon, R.S.

    1994-01-01

    This study is part of the research program of the Yucca Mountain Project intended to provide the State of Nevada with a detailed assessment of the geology and geochemistry of Yucca Mountain and adjacent regions. The purpose of this paper is to consider all of the geological and geochemical data available for the calcite/opal deposits at Yucca Mountain and to ascertain whether this data favors a pedogenic or hyogene origin for these deposits. Far from being of esoteric concern, this subject is of paramount importance to the debate which rages around the suitability of Yucca Mountain as a high-level radioactive waste repository site. It is also the purpose of this paper to serve as a foundation for a lengthy feature article to be submitted for publication in 1994. In addition, a stand has been taken by the National Research Council of the National Academy of Sciences against the upwelling-water model (a vote of 17 to 0 against), and this same panel report has concluded that {open_quotes}there is no compelling evidence for the repetitive flooding of the environment by expulsion of groundwater{close_quotes} and that {open_quotes}instead, the evidence strongly supports the idea that the near-surface mineral deposits resulted from percolating rainwater, which carried soil minerals down into rock fractures{close_quotes}. Based on such information the Department of Energy has stated that it {open_quotes}finds no basis to continue to study the origin of these specific deposits{close_quotes}. This study, based upon many different independent lines of evidence, reaches the opposite conclusion and instead favors a hypogene spring-travertine origin for the controversial calcite/opal deposits at Yucca Mountain. This study recognizes a pedogenic carbonate component at Yucca Mountain, but argues that this component is distinct from, and sometimes intermixed with, the calcite/opal deposits.

  3. Use of modern software technology in the redesign of OPAL trigger software

    SciTech Connect (OSTI)

    Ackerstaff, K.; Khodabandeh, A.; Shears, T.

    1998-08-01

    The OPAL experiment at LEP has a central trigger system which is modular and VME based. An upgrade of the control software was necessary to increase the flexibility and maintainability of the system. The software has been completely re-engineered in a project which lasted from January until August 1997. The use and benefits of a customized software development environment as an instrumentation of the design process, and of the project infrastructure, are described. The importance of this approach for the success of the project and its suitability for use in real-time systems is demonstrated.

  4. 03/10/2006 04:51 PMOptoElectronics Packaging & Materials Lab -Publications Page 1 of 13http://www.eng.uci.edu/chems/opal/publications.htm

    E-Print Network [OSTI]

    Mease, Kenneth D.

    03/10/2006 04:51 PMOptoElectronics Packaging & Materials Lab - Publications Page 1 of 13http://www.eng.uci.edu/chems/opal & Materials Lab - Publications Page 2 of 13http://www.eng.uci.edu/chems/opal/publications.htm J. H. Choi, Shi

  5. Automatic Mapping of Real Time Radio Astronomy Signal Processing Pipelines onto Heterogeneous Clusters

    E-Print Network [OSTI]

    Filiba, Terry

    2013-01-01

    Astronomy Signal Processing Pipelines onto HeterogeneousAstronomy Signal Processing Pipelines onto HeterogeneousAstronomy Signal Processing Pipelines onto Heterogeneous

  6. Evaluation of Smart Irrigation Controllers: Initial Bench Testing Results

    E-Print Network [OSTI]

    Swanson, Charles; Fipps, Guy

    2009-01-01

    stream_source_info TR-354 Inital Results-Smart Controller Report 7-16-09.pdf.txt stream_content_type text/plain stream_size 20709 Content-Encoding ISO-8859-1 stream_name TR-354 Inital Results-Smart Controller Report 7-16-09.pdf....txt Content-Type text/plain; charset=ISO-8859-1 COLLEGE OF AGRICULTURE AND LIFE SCIENCES TR-354 2009 Evaluation of Smart Irrigation Controllers: Initial Bench Testing Results July 2009 By Charles Swanson...

  7. 01-12-1998 - Bench Top FIre Involving Use of Alcohol and Burner...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    1998 - Bench Top FIre Involving Use of Alcohol and Burner Document Number: NA Effective Date: 011998 File (public): 01-12-1998...

  8. Bench-Top Engine System for Fast Screening of Alternative Fuels and Fuel Additives

    Broader source: Energy.gov [DOE]

    A bench-top engine testing system was used to fast screen the efficiency of fuel additives or fuel blends on NOx reduction

  9. MAY 1998 1259P O W E L L A N D H O U S T O N Surface Wind Fields of 1995 Hurricanes Erin, Opal, Luis, Marilyn, and

    E-Print Network [OSTI]

    MAY 1998 1259P O W E L L A N D H O U S T O N Surface Wind Fields of 1995 Hurricanes Erin, Opal) ABSTRACT Hurricanes Erin, Opal, Luis, Marilyn, and Roxanne were the most destructive hurricanes of 1995 the DestinFt. Walton area. Hurricane Opal made landfall in nearly the identical area as Erin, with maximum

  10. Transformation of Hydrogel-Based Inverse Opal Photonic Sensors from FCC to L11 during Yun-Ju Lee,, Carla E. Heitzman, Walter R. Frei, H. T. Johnson, and Paul V. Braun*,

    E-Print Network [OSTI]

    Braun, Paul

    Transformation of Hydrogel-Based Inverse Opal Photonic Sensors from FCC to L11 during Swelling Yun diffracting inverse opal hydrogel sensors during swelling is directly observed by two-photon laser scanning an inverse opal. Fluorescence imaging of the hydrogel at different pH values reveals an inhomogeneous

  11. High-Performance Asynchronous Pipelines

    E-Print Network [OSTI]

    tool support, testing, and recent industrial and academic applications. Applications of pipelining, asynchronous pipe- lines have had broad application, from the early commercial graphics and flight simulation systems of Evans & Sutherland, whose LDS-1 (Line Drawing System-1) was first shipped to Bolt, Beranek

  12. CASE CRITICAL Keystone XL Pipeline

    E-Print Network [OSTI]

    Hall, Sharon J.

    Former President, Shell Oil Company Julie A. Wrigley Private Sector Executive-in-Residence, ASU's School Professor, ASU's School of Geographical Sciences and Urban Planning The Keystone XL Pipeline, a large lands yield a sustainable future? Join this panel discussion and discover the political, economic

  13. Pipeline rehabilitation using field applied tape systems

    SciTech Connect (OSTI)

    Reeves, C.R. [Tapecoat Co., Evanston, IL (United States)

    1998-12-31

    Bare steel pipelines were first installed years before the turn of the century. Pipeline operators soon realized the lie of bare steel could be greatly enhanced by applying coatings. Thus began ``pipeline rehabilitation.`` Many of the older pipelines were exposed, evaluated, coated and returned to service. This procedure has reached new heights in recent years as coated pipelines of the twentieth century, having lived past their original design life, are now subject to coating failure. Many operator companies with pipelines thirty years or older are faced with ``replace or recondition.`` Considering the emphasis on cost restraints and environmental issues, replacing an existing pipeline is often not the best decision. Rehabilitation is a preferred solution for many operators.

  14. Capsule injection system for a hydraulic capsule pipelining system

    DOE Patents [OSTI]

    Liu, Henry (Columbia, MO)

    1982-01-01

    An injection system for injecting capsules into a hydraulic capsule pipelining system, the pipelining system comprising a pipeline adapted for flow of a carrier liquid therethrough, and capsules adapted to be transported through the pipeline by the carrier liquid flowing through the pipeline. The injection system comprises a reservoir of carrier liquid, the pipeline extending within the reservoir and extending downstream out of the reservoir, and a magazine in the reservoir for holding capsules in a series, one above another, for injection into the pipeline in the reservoir. The magazine has a lower end in communication with the pipeline in the reservoir for delivery of capsules from the magazine into the pipeline.

  15. Analytic prognostic for petrochemical pipelines

    E-Print Network [OSTI]

    Jaoude, Abdo Abou; El-Tawil, Khaled; Noura, Hassan; Ouladsine, Mustapha

    2012-01-01

    Pipelines tubes are part of vital mechanical systems largely used in petrochemical industries. They serve to transport natural gases or liquids. They are cylindrical tubes and are submitted to the risks of corrosion due to high PH concentrations of the transported liquids in addition to fatigue cracks due to the alternation of pressure-depression of gas along the time, initiating therefore in the tubes body micro-cracks that can propagate abruptly to lead to failure. The development of the prognostic process for such systems increases largely their performance and their availability, as well decreases the global cost of their missions. Therefore, this paper deals with a new prognostic approach to improve the performance of these pipelines. Only the first mode of crack, that is, the opening mode, is considered.

  16. Analytic prognostic for petrochemical pipelines

    E-Print Network [OSTI]

    Abdo Abou Jaoude; Seifedine Kadry; Khaled El-Tawil; Hassan Noura; Mustapha Ouladsine

    2012-12-25

    Pipelines tubes are part of vital mechanical systems largely used in petrochemical industries. They serve to transport natural gases or liquids. They are cylindrical tubes and are submitted to the risks of corrosion due to high PH concentrations of the transported liquids in addition to fatigue cracks due to the alternation of pressure-depression of gas along the time, initiating therefore in the tubes body micro-cracks that can propagate abruptly to lead to failure. The development of the prognostic process for such systems increases largely their performance and their availability, as well decreases the global cost of their missions. Therefore, this paper deals with a new prognostic approach to improve the performance of these pipelines. Only the first mode of crack, that is, the opening mode, is considered.

  17. An HRTEM investigation of the metastable low-temperature silica phase opal-CT in cherts and porcelanites from the Monterey Formation, CA

    SciTech Connect (OSTI)

    Cady, S.L.; Wenk, H.R. )

    1992-01-01

    High resolution transmission electron microscopy (HRTEM) is used to investigate the metastable low-temperature silica phase opal-CT in cherts and porcelanites from the Miocene Monterey Formation of California. Low-dose imaging techniques developed to image highly beam sensitive proteins were used in this study and have resulted in good phase contrast images of this hydrous silica phase. Detailed X-ray powder diffraction studies of stratigraphically equivalent rocks along the Santa Barbara coast indicate that the primary d-spacing of newly formed opal-CT differs in rocks with different ratios of silica and detrital minerals. Opal-CT forms progressively later and with a smaller primary d-spacing in rocks with increasing amounts of detrital minerals. In siliceous cherts opal-CT occurs as long needles that most often form dense spherulitic fiber bundles which are randomly dispersed within the rock matrix. The random orientation of fiber bundle nucleation centers does not appear to be associated with any obvious nucleation site, unlike the length-slow opal-CT fibers known as lussatite. Opal-CT needles produce optical diffractogram patterns that are compatible with tridymite and crystobalite. Streaking in the diffraction pattern of individual needles is attributed to a high density of planar defects parallel to their length. Planar defects are not as abundant in opal-CT needles formed in detrital-rich rocks suggesting the rapid growth of opal-CT in highly siliceous environments results in a greater proportion of stacking disorder in the needles. HRTEM provides a method for investigating the development of the microstructure of opal-CT during diagenesis.

  18. Flow of suspensions in pipelines

    SciTech Connect (OSTI)

    Nasr-El-Din, H.A. [Laboratory R& D Center, Saudi Aramco, Dhahran (Saudi Arabia)

    1996-12-31

    Slurry pipelines are used in many industrial applications. Several parameters are often needed by the operator, including critical deposit velocity, solids concentration, and particle velocity profiles. This chapter first reviews important formulas used to predict critical deposit velocity both in Newtonian and non-Newtonian (power-law) carrier fluids. Various methods to measure local velocity and solids concentration profiles in slurry pipelines are discussed. Local solids concentration can be measured by sample withdrawal technique. However, the sample should be withdrawn at isokinetic conditions. Sampling downstream of tees and elbows can result in significant errors in measuring solids concentration. Gamma-ray absorption methods can be used; however, two scans are needed to obtain local solids concentration. Bulk velocity of conductive slurries can be obtained using magnetic flow meters mounted on a vertical section of the pipe. Local particle velocity can be obtained using conductivity probes. NMR methods can be used to measure concentration and particle velocity profiles but are limited to small-diameter pipes. Vertical solids concentration of coarse slurries flowing in a horizontal pipeline exhibits a positive gradient near the bottom of the pipe. Traditional models to predict these profiles are given, and new mathematical models and computer software to determine these profiles are introduced. 104 refs., 31 figs., 1 tab.

  19. US pipelines report mixed results for 1993

    SciTech Connect (OSTI)

    True, W.R.

    1994-11-21

    US natural gas pipelines started 1994 in generally better conditions than a year earlier. These companies' operational and financial results for 1993 indicate modest but continuing improvement. Petroleum liquids pipelines, on the other hand, suffered reduced revenues and incomes last: increased deliveries and trunkline movement of liquid petroleum products failed fully to offset fewer barrels of crude oil moving through the companies' pipeline systems. Revenues, incomes, mileage operated, and other data are tracked in Oil and Gas Journal's exclusive Economics Report. Additionally, this report contains extensive data on actual costs of pipeline construction compared with what companies expected to spend at the time of projects' approvals. The paper also discusses the continuing shift of natural gas pipelines as merchants to role of transporter; what was spent; the US interstate network; pipeline mileage; deliveries; the top 10 companies; construction activities; cost trends; and cost components.

  20. Enhanced spontaneous emission from nanodiamond colour centres on opal photonic crystal

    E-Print Network [OSTI]

    Faraz A Inam; Torsten Gaebel; Carlo Bradac; Luke Stewart; Michael J Withford; Judith M Dawes; James R Rabeau; Michael J Steel

    2011-02-02

    Colour centres in diamond are promising candidates as a platform for quantum technologies and biomedical imaging based on spins and/or photons. Controlling the emission properties of colour centres in diamond is a key requirement for developing efficient single photon sources with high collection efficiency. A number of groups have produced enhancement in the emission rate over narrow wavelength ranges by coupling single emitters in nanodiamond crystals to resonant electromagnetic structures. Here we characterise in detail the spontaneous emission rates of nitrogen-vacancy centres positioned in various locations on a structured substrate. We show an average factor of 1.5 enhancement of the total emission rate when nanodiamonds are on an opal photonic crystal surface, and observe changes in the lifetime distribution. We present a model to explain these observations and associate the lifetime properties with dipole orientation and polarization effects.

  1. Enhanced spontaneous emission from nanodiamond colour centres on opal photonic crystal

    E-Print Network [OSTI]

    Inam, Faraz A; Bradac, Carlo; Stewart, Luke; Withford, Michael J; Dawes, Judith M; Rabeau, James R; Steel, Michael J

    2011-01-01

    Colour centres in diamond are promising candidates as a platform for quantum technologies and biomedical imaging based on spins and/or photons. Controlling the emission properties of colour centres in diamond is a key requirement for developing efficient single photon sources with high collection efficiency. A number of groups have produced enhancement in the emission rate over narrow wavelength ranges by coupling single emitters in nanodiamond crystals to resonant electromagnetic structures. Here we characterise in detail the spontaneous emission rates of nitrogen-vacancy centres positioned in various locations on a structured substrate. We show an average factor of 1.5 enhancement of the total emission rate when nanodiamonds are on an opal photonic crystal surface, and observe changes in the lifetime distribution. We present a model to explain these observations and associate the lifetime properties with dipole orientation and polarization effects.

  2. Dark Current and Multipacting Capabilities in OPAL: Model Benchmarks and Applications

    E-Print Network [OSTI]

    Wang, C; Yin, Z G; Zhang, T J

    2012-01-01

    Dark current and multiple electron impacts (multipacting), as for example observed in radio frequency (RF) structures of accelerators, are usually harmful to the equipment and the beam quality. These effects need to be suppressed to guarantee efficient and stable operation. Large scale simulations can be used to understand causes and develop strategies to suppress these phenomenas. We extend \\opal, a parallel framework for charged particle optics in accelerator structures and beam lines, with the necessary physics models to efficiently and precisely simulate multipacting phenomenas. We added a Fowler-Nordheim field emission model, two secondary electron emission models, developed by Furman-Pivi and Vaughan respectively, as well as efficient 3D boundary geometry handling capabilities. The models and their implementation are carefully benchmark against a non-stationary multipacting theory for the classic parallel plate geometry. A dedicated, parallel plate experiment is sketched.

  3. Thin scintillating tiles (with fiber readout and high light-yield) for the OPAL endcaps

    SciTech Connect (OSTI)

    Ball, Austin H.

    1998-11-09

    Scintillating tiles with embedded wavelength-shifting fiber readout have recently been installed in the OPAL endcaps to improve trigger performance, time resolution and hermeticity for experiments at LEP II. The design is constrained to provide hermetic coverage of the available area with high single particle efficiency, uniform response and good time resolution, notwithstanding the limited space for the detector and its long readout cables, and despite the strong endcap magnetic field. A high light yield per embedded fiber is required. This paper motivates and describes the design, and demonstrates that the performance meets the required targets. A light yield of 14 photoelectrons/MIP and a time resolution of 3ns have been obtained during 1997 LEP operation.

  4. Thin scintillating tiles (with fiber readout and high light-yield) for the OPAL endcaps

    SciTech Connect (OSTI)

    Ball, A.H.

    1998-11-01

    Scintillating tiles with embedded wavelength-shifting fiber readout have recently been installed in the OPAL endcaps to improve trigger performance, time resolution and hermeticity for experiments at LEP II. The design is constrained to provide hermetic coverage of the available area with high single particle efficiency, uniform response and good time resolution, notwithstanding the limited space for the detector and its long readout cables, and despite the strong endcap magnetic field. A high light yield per embedded fiber is required. This paper motivates and describes the design, and demonstrates that the performance meets the required targets. A light yield of 14 photoelectrons/MIP and a time resolution of 3ns have been obtained during 1997 LEP operation. {copyright} {ital 1998 American Institute of Physics.}

  5. Computer Science and Information Technology Student Pipeline

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Science and Information Technology Student Pipeline Program Description Los Alamos National Laboratory's High Performance Computing and Information Technology Divisions recruit and...

  6. Acoustic system for communication in pipelines

    DOE Patents [OSTI]

    Martin, II, Louis Peter (San Ramon, CA); Cooper, John F. (Oakland, CA)

    2008-09-09

    A system for communication in a pipe, or pipeline, or network of pipes containing a fluid. The system includes an encoding and transmitting sub-system connected to the pipe, or pipeline, or network of pipes that transmits a signal in the frequency range of 3-100 kHz into the pipe, or pipeline, or network of pipes containing a fluid, and a receiver and processor sub-system connected to the pipe, or pipeline, or network of pipes containing a fluid that receives said signal and uses said signal for a desired application.

  7. Department of Transportation Pipeline and Hazardous Materials...

    Office of Environmental Management (EM)

    Conroy U S Department of Transportation - 1 - U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration Office of Hazardous Materials Safety...

  8. GLAST (FERMI) Data-Processing Pipeline

    SciTech Connect (OSTI)

    Flath, Daniel L.; Johnson, Tony S.; Turri, Massimiliano; Heidenreich, Karen A.; /SLAC

    2011-08-12

    The Data Processing Pipeline ('Pipeline') has been developed for the Gamma-Ray Large Area Space Telescope (GLAST) which launched June 11, 2008. It generically processes graphs of dependent tasks, maintaining a full record of its state, history and data products. The Pipeline is used to automatically process the data down-linked from the satellite and to deliver science products to the GLAST collaboration and the Science Support Center and has been in continuous use since launch with great success. The pipeline handles up to 2000 concurrent jobs and in reconstructing science data produces approximately 750GB of data products using 1/2 CPU-year of processing time per day.

  9. SIDE: SPIRITS (or Spitzer) Imaging Differencing & Extraction pipeline

    E-Print Network [OSTI]

    Masci, Frank

    1 SIDE: SPIRITS (or Spitzer) Imaging Differencing & Extraction pipeline - epochal (sci) coadd of 6 everything that's static in space & time · Pipeline adapted from a very early version of the PTF pipeline, i

  10. Embedded Damage Detection in Water Pipelines Using Wireless Sensor Networks

    E-Print Network [OSTI]

    Shinozuka, Masanobu

    Embedded Damage Detection in Water Pipelines Using Wireless Sensor Networks Hadil Mustafa real-time detec- tion algorithm for detecting rupture events in water pipelines noninvasively reducing the total energy consumption significantly. Index Terms--Water pipeline monitoring, ruptures

  11. Master's Thesis: Behaviors of Air Bubbles in Drinking Water Pipelines

    E-Print Network [OSTI]

    Cirpka, Olaf Arie

    Master's Thesis: Behaviors of Air Bubbles in Drinking Water Pipelines: Experimental Investigation............................................................................... 3 2.1 Air Bubbles in Pipeline........................................................................................ 3 2.1.1 Air Existence in Drinking Water Pipeline Networks

  12. Structural Genomics of Minimal Organisms: Pipeline and Results

    E-Print Network [OSTI]

    Kim, Sung-Hou

    2008-01-01

    of Minimal Organisms: Pipeline and Results Sung-Hou Kim*,~500 genes, respectively). Pipeline: To achieve our mission,determination. Over all pipeline schemes for the single-path

  13. Trenches Under The Pipeline: The Educational Trajectories of Chicano Male Continuation High School Students

    E-Print Network [OSTI]

    Malagon, Maria

    2010-01-01

    Trenches Under The Pipeline: The Educational Trajectories ofnavigate the educational pipeline, continuation high school

  14. NOVEL CRYOGENIC ENGINEERING SOLUTIONS FOR THE NEW AUSTRALIAN RESEARCH REACTOR OPAL

    SciTech Connect (OSTI)

    Olsen, S. R.; Kennedy, S. J.; Kim, S.; Schulz, J. C.; Thiering, R.; Gilbert, E. P.; Lu, W.; James, M.; Robinson, R. A.

    2008-03-16

    In August 2006 the new 20MW low enriched uranium research reactor OPAL went critical. The reactor has 3 main functions, radio pharmaceutical production, silicon irradiation and as a neutron source. Commissioning on 7 neutron scattering instruments began in December 2006. Three of these instruments (Small Angle Neutron Scattering, Reflectometer and Time-of-flight Spectrometer) utilize cold neutrons.The OPAL Cold Neutron Source, located inside the reactor, is a 20L liquid deuterium moderated source operating at 20K, 330kPa with a nominal refrigeration capacity of 5 kW and a peak flux at 4.2meV (equivalent to a wavelength of 0.4nm). The Thermosiphon and Moderator Chamber are cooled by helium gas delivered at 19.8K using the Brayton cycle. The helium is compressed by two 250kW compressors (one with a variable frequency drive to lower power consumption).A 5 Tesla BSCCO (2223) horizontal field HTS magnet will be delivered in the 2{sup nd} half of 2007 for use on all the cold neutron instruments. The magnet is cooled by a pulse tube cryocooler operating at 20K. The magnet design allows for the neutron beam to pass both axially and transverse to the field. Samples will be mounted in a 4K to 800K Gifford-McMahon (GM) cryofurnace, with the ability to apply a variable electric field in-situ. The magnet is mounted onto a tilt stage. The sample can thus be studied under a wide variety of conditions.A cryogen free 7.4 Tesla Nb-Ti vertical field LTS magnet, commissioned in 2005 will be used on neutron diffraction experiments. It is cooled by a standard GM cryocooler operating at 4.2K. The sample is mounted in a 2{sup nd} GM cryocooler (4K-300K) and a variable electric field can be applied.

  15. EIA - Natural Gas Pipeline Network - Natural Gas Pipeline Mileage by

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979Coal4Cubic43,728ConfigurationList Pipelines

  16. Harmonic distortion correction in pipelined analog to digital converters

    E-Print Network [OSTI]

    Panigada, Andrea

    2009-01-01

    Background Correction of Harmonic Distortion in PipelinedBackground Correction of Harmonic Distortion in PipelinedADC with 69dB SNDR Enabled by Digital Harmonic Distortion

  17. Piko: A Framework for Authoring Programmable Graphics Pipelines

    E-Print Network [OSTI]

    Patney, Anjul; Tzeng, Stanley; Seitz, Kerry A. Jr.; Owens, John D.

    2015-01-01

    systems Keywords: graphics pipelines, parallel computing Introduction Renderers in computer graphics often build upon an underlying graphics pipeline: a series of computational

  18. Sequencing Technologies and Computational pipelines at the JGI

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Sequencing Technologies and Computational pipelines at the JGI Sequencing Technologies and Computational pipelines at the JGI September 17, 2013 JGI logo 2 James Han, JGI...

  19. Evalutation of Natural Gas Pipeline Materials and Infrastructure...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Evalutation of Natural Gas Pipeline Materials and Infrastructure for HydrogenMixed Gas Service Evalutation of Natural Gas Pipeline Materials and Infrastructure for HydrogenMixed...

  20. Energy Department Moves Forward on Alaska Natural Gas Pipeline...

    Broader source: Energy.gov (indexed) [DOE]

    guarantee program to encourage the construction of a pipeline that will bring Alaskan natural gas to the continental United States. The pipeline will provide access to Alaska's...

  1. Hydrogen Delivery Technologies and Systems- Pipeline Transmission of Hydrogen

    Broader source: Energy.gov [DOE]

    Hydrogen Delivery Technologies and Systems - Pipeline Transmission of Hydrogen. Design and operations standards and materials for hydrogen and natural gas pipelines.

  2. Hydrogen Permeability and Integrity of Hydrogen Delivery Pipelines...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Permeability and Integrity of Hydrogen Delivery Pipelines Hydrogen Permeability and Integrity of Hydrogen Delivery Pipelines Project Objectives: To gain basic understanding of...

  3. Evaluation of Natural Gas Pipeline Materials for Hydrogen Science...

    Office of Environmental Management (EM)

    Evaluation of Natural Gas Pipeline Materials for Hydrogen Science Evaluation of Natural Gas Pipeline Materials for Hydrogen Science Presentation by 04-Adams to DOE Hydrogen...

  4. Report to Congress: Dedicated Ethanol Pipeline Feasability Study...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Report to Congress: Dedicated Ethanol Pipeline Feasability Study - Energy Independence and Security Act of 2007 Section 243 Report to Congress: Dedicated Ethanol Pipeline...

  5. Seismological comparisons of solar models with element diffusion using the MHD, OPAL, and SIREFF equations of state

    SciTech Connect (OSTI)

    Guzik, J.A.; Swenson, F.J.

    1997-12-01

    We compare the thermodynamic and helioseismic properties of solar models evolved using three different equation of state (EOS) treatments: the Mihalas, D{umlt a}ppen & Hummer EOS tables (MHD); the latest Rogers, Swenson, & Iglesias EOS tables (OPAL), and a new analytical EOS (SIREFF) developed by Swenson {ital et al.} All of the models include diffusive settling of helium and heavier elements. The models use updated OPAL opacity tables based on the 1993 Grevesse & Noels solar element mixture, incorporating 21 elements instead of the 14 elements used for earlier tables. The properties of solar models that are evolved with the SIREFF EOS agree closely with those of models evolved using the OPAL or MHD tables. However, unlike the MHD or OPAL EOS tables, the SIREFF in-line EOS can readily account for variations in overall Z abundance and the element mixture resulting from nuclear processing and diffusive element settling. Accounting for Z abundance variations in the EOS has a small, but non-negligible, effect on model properties (e.g., pressure or squared sound speed), as much as 0.2{percent} at the solar center and in the convection zone. The OPAL and SIREFF equations of state include electron exchange, which produces models requiring a slightly higher initial helium abundance, and increases the convection zone depth compared to models using the MHD EOS. However, the updated OPAL opacities are as much as 5{percent} lower near the convection zone base, resulting in a small decrease in convection zone depth. The calculated low-degree nonadiabatic frequencies for all of the models agree with the observed frequencies to within a few microhertz (0.1{percent}). The SIREFF analytical calibrations are intended to work over a wide range of interior conditions found in stellar models of mass greater than 0.25M{sub {circle_dot}} and evolutionary states from pre-main-sequence through the asymptotic giant branch (AGB). It is significant that the SIREFF EOS produces solar models that both measure up to the stringent requirements imposed by solar oscillation observations and inferences, and are more versatile than EOS tables. {copyright} {ital 1997} {ital The American Astronomical Society}

  6. Universit du Littoral Cte d'Opale Anne 2009/2010 Licence Informatique et Mathmatiques, 1re anne Semestre 2, Session 1

    E-Print Network [OSTI]

    Smouch, Laurent

    Université du Littoral Côte d'Opale Année 2009/2010 Licence Informatique et Mathématiques, 1ère

  7. Addressing the workforce pipeline challenge

    SciTech Connect (OSTI)

    Leonard Bond; Kevin Kostelnik; Richard Holman

    2006-11-01

    A secure and affordable energy supply is essential for achieving U.S. national security, in continuing U.S. prosperity and in laying the foundations to enable future economic growth. To meet this goal the next generation energy workforce in the U.S., in particular those needed to support instrumentation, controls and advanced operations and maintenance, is a critical element. The workforce is aging and a new workforce pipeline, to support both current generation and new build has yet to be established. The paper reviews the challenges and some actions being taken to address this need.

  8. FERC approves Northwest pipeline expansion

    SciTech Connect (OSTI)

    Not Available

    1992-06-15

    Northwest Pipeline Co., Salt Lake City, Utah, received a final permit from the Federal Energy Regulatory Commission for a $373.4 million main gas line expansion. This paper reports that it plans to begin construction of the 443 MMcfd expansion in mid-July after obtaining further federal, state, and local permits. The expanded system is to be fully operational by second quarter 1993. When the expansion is complete, total Northwest system mileage will be 3,936 miles and system capacity about 2.49 bcfd.

  9. Aspen Pipeline | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAandAmminex A SOpenAshley, Ohio: Energy- Transport JumpAsolaCleanPipeline

  10. Algeria LPG pipeline is build by Bechtel

    SciTech Connect (OSTI)

    Horner, C.

    1984-08-01

    The construction of the 313 mile long, 24 in. LPG pipeline from Hassi R'Mel to Arzew, Algeria is described. The pipeline was designed to deliver 6 million tons of LPG annually using one pumping station. Eventually an additional pumping station will be added to raise the system capacity to 9 million tons annually.

  11. Natural Gas Pipeline and System Expansions

    Reports and Publications (EIA)

    1997-01-01

    This special report examines recent expansions to the North American natural gas pipeline network and the nature and type of proposed pipeline projects announced or approved for construction during the next several years in the United States. It includes those projects in Canada and Mexico that tie in with U.S. markets or projects.

  12. Pipeline Safety Program Oak Ridge National Laboratory

    E-Print Network [OSTI]

    .S. Department of Energy under Contract number DE-AC05-00OR22725 Research Areas Freight Flows Passenger Flows support to the U.S. Department of Transportation's Pipeline and Hazardous Materials Safety Administration and hazardous liquid pipelines. To assist PHMSA accomplish this mission, ORNL Subject Matter Experts (SMEs) who

  13. Changes in the Pipeline Transportation Market

    Reports and Publications (EIA)

    1999-01-01

    This analysis assesses the amount of capacity that may be turned back to pipeline companies, based on shippers' actions over the past several years and the profile of contracts in place as of July 1, 1998. It also examines changes in the characteristics of contracts between shippers and pipeline companies.

  14. U.S. interstate pipelines ran more efficiently in 1994

    SciTech Connect (OSTI)

    True, W.R.

    1995-11-27

    Regulated US interstate pipelines began 1995 under the momentum of impressive efficiency improvements in 1994. Annual reports filed with the US Federal Energy Regulatory Commission (FERC) show that both natural-gas and petroleum liquids pipeline companies increased their net incomes last year despite declining operating revenues. This article discusses trends in the pipeline industry and gives data on the following: pipeline revenues, incomes--1994; current pipeline costs; pipeline costs--estimated vs. actual; current compressor construction costs; compressor costs--estimated vs. actual; US interstate mileage; investment in liquids pipelines; 10-years of land construction costs; top 10 interstate liquids pipelines; top 10 interstate gas pipelines; liquids pipeline companies; and gas pipeline companies.

  15. Design of a bench-scale apparatus for processing carbon black derived from scrap tires

    E-Print Network [OSTI]

    Woodrow, Philip Travis

    1996-01-01

    The focus of this work is to design a bench-scale apparatus, for laboratory applications, that will perform solid processing operations for carbon black obtained through the thermal catalytic depolymerization of scrap tires. These operations...

  16. The E-lens test bench for RHIC beam-beam compensation

    SciTech Connect (OSTI)

    Gu X.; Altinbas, F.Z.; Aronson, J.; Beebe, E. et al

    2012-05-20

    To compensate for the beam-beam effects from the proton-proton interactions at IP6 and IP8 in the Relativistic Heavy Ion Collider (RHIC), we are fabricating two electron lenses that we plan to install at RHIC IR10. Before installing the e-lenses, we are setting-up the e-lens test bench to test the electron gun, collector, GS1 coil, modulator, partial control system, some instrumentation, and the application software. Some e-lens power supplies, the electronics for current measurement will also be qualified on test bench. The test bench also was designed for measuring the properties of the cathode and the profile of the beam. In this paper, we introduce the layout and elements of the e-lens test bench; and we discuss its present status towards the end of this paper.

  17. Pipeline Decommissioning Trial AWE Berkshire UK - 13619

    SciTech Connect (OSTI)

    Agnew, Kieran

    2013-07-01

    This Paper details the implementation of a 'Decommissioning Trial' to assess the feasibility of decommissioning the redundant pipeline operated by AWE located in Berkshire UK. The paper also presents the tool box of decommissioning techniques that were developed during the decommissioning trial. Constructed in the 1950's and operated until 2005, AWE used a pipeline for the authorised discharge of treated effluent. Now redundant, the pipeline is under a care and surveillance regime awaiting decommissioning. The pipeline is some 18.5 km in length and extends from AWE site to the River Thames. Along its route the pipeline passes along and under several major roads, railway lines and rivers as well as travelling through woodland, agricultural land and residential areas. Currently under care and surveillance AWE is considering a number of options for decommissioning the pipeline. One option is to remove the pipeline. In order to assist option evaluation and assess the feasibility of removing the pipeline a decommissioning trial was undertaken and sections of the pipeline were removed within the AWE site. The objectives of the decommissioning trial were to: - Demonstrate to stakeholders that the pipeline can be removed safely, securely and cleanly - Develop a 'tool box' of methods that could be deployed to remove the pipeline - Replicate the conditions and environments encountered along the route of the pipeline The onsite trial was also designed to replicate the physical prevailing conditions and constraints encountered along the remainder of its route i.e. working along a narrow corridor, working in close proximity to roads, working in proximity to above ground and underground services (e.g. Gas, Water, Electricity). By undertaking the decommissioning trial AWE have successfully demonstrated the pipeline can be decommissioned in a safe, secure and clean manor and have developed a tool box of decommissioning techniques. The tool box of includes; - Hot tapping - a method of breaching the pipe while maintaining containment to remove residual liquids, - Crimp and shear - remote crimping, cutting and handling of pipe using the excavator - Pipe jacking - a way of removing pipes avoiding excavations and causing minimal disturbance and disruption. The details of the decommissioning trial design, the techniques employed, their application and effectiveness are discussed and evaluated here in. (authors)

  18. Preparation of LiFePO{sub 4} with inverse opal structure and its satisfactory electrochemical properties

    SciTech Connect (OSTI)

    Lu Junbiao . E-mail: ljb01@mails.tsinghua.edu.cn; Tang Zilong; Zhang Zhongtai; Shen Wanci

    2005-12-08

    Phase pure, well-crystallized and homogeneous LiFePO{sub 4} powder with inverse opal structure was obtained by calcining the precursors of Li{sup +}, Fe{sup 2+} and PO{sub 4} {sup 3-} in the presence of organic template of poly(styrene-methyl methacrylate-acrylic acid) latex micro-spheres under nitrogen atmosphere. The resultant products were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), chemical titration, Fourier transform infrared (FTIR) and Land 2001A electrochemical measurement system. Results indicated that after the decomposition of organic template, inverse opal structure and conductive carbon were left in the resultant products. With the large specific surface area resulting from inverse opal structure and with the conductive carbon, the products delivered satisfactory capacity and superior rate capability at room temperature, i.e., over 100 mAh/g at the high current density of 5.9C.

  19. Software De-Pipelining Technique Bogong Su 1

    E-Print Network [OSTI]

    Su, Bogong

    Software De-Pipelining Technique Bogong Su 1 Jian Wang 2 Erh-Wen Hu 1 Joseph Manzano 1 sub Abstract Software pipelining is a loop optimization technique used to speed up loop execution. It is widely parallelism. Software de-pipelining is the reverse of software pipelining; it restores the assembly code

  20. Highly Pipelined Asynchronous FPGAs John Teifel and Rajit Manohar

    E-Print Network [OSTI]

    Manohar, Rajit

    Highly Pipelined Asynchronous FPGAs John Teifel and Rajit Manohar Computer Systems Laboratory of a high-performance, highly pipelined asynchronous FPGA. We describe a very fine-grain pipelined logic advantage of this large amount of pipelining. Our FPGA, which does not use a clock to sequence computations

  1. Highly Pipelined Asynchronous FPGAs John Teifel and Rajit Manohar

    E-Print Network [OSTI]

    Manohar, Rajit

    Highly Pipelined Asynchronous FPGAs John Teifel and Rajit Manohar Computer Systems Laboratory of a high-performance, highly pipelined asynchronous FPGA. We describe a very #12;ne-grain pipelined logic advantage of this large amount of pipelining. Our FPGA, which does not use a clock to sequence computations

  2. The Design of High-Throughput Asynchronous Pipelines

    E-Print Network [OSTI]

    The Design of High-Throughput Asynchronous Pipelines Montek Singh Department of Computer Science UNIVERSITY December 2001 #12;The Design of High-Throughput Asynchronous Pipelines Montek Singh ABSTRACT is on high-throughput asynchronous pipelines, since pipelining is at the heart of most high

  3. The Design of HighThroughput Asynchronous Pipelines

    E-Print Network [OSTI]

    The Design of HighThroughput Asynchronous Pipelines Montek Singh Department of Computer Science UNIVERSITY December 2001 #12; The Design of HighThroughput Asynchronous Pipelines Montek Singh ABSTRACT is on highthroughput asynchronous pipelines, since pipelining is at the heart of most high

  4. Towards Reliable 5Gbps Wave-pipelined and

    E-Print Network [OSTI]

    Lemieux, Guy

    Towards Reliable 5Gbps Wave-pipelined and 3Gbps Surfing Interconnect in 65nm FPGAs Paul Teehan Guy source Data destination Input switches Output switches High-speed pipelined wire Regular interconnect-speed pipelined wire #12;FPGA'09 4 of 27 Key points Base design Wave pipelining, source synchronous timing

  5. ORIGINAL CONTRIBUTION The Physician-Scientist Career Pipeline

    E-Print Network [OSTI]

    Oliver, Douglas L.

    ORIGINAL CONTRIBUTION The Physician-Scientist Career Pipeline in 2005 Build It, and They Will Come, the pipeline of physician- scientists has a serious problem, first de- scribed more than a generation ago.2-scientist career pipeline. Design We assessed recent trends in the physician-scientist career pipeline using data

  6. Reference: RGL 84-07 Subject: MAPPING PIPELINES

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Reference: RGL 84-07 Subject: MAPPING PIPELINES Title: CHARTING OF PIPELINES AND CABLES Issued: 05/01/84 Expires: 12/31/86 Originator: DAEN-CWO-N Description: REQUIRES MAPPING OF PIPELINE CROSSINGS ON NAUTICAL and pipeline crossings on nautical charts published by the Government. This policy is contained in 33 CFR 209

  7. Bench-scale co-processing economic assessment. Final report

    SciTech Connect (OSTI)

    Gala, H.B.; Marker, T.L.; Miller, E.N.

    1994-11-01

    The UOP Co-Processing scheme is a single-stage slurry catalyzed process in which petroleum vacuum resid and coal are simultaneously upgraded to a high-quality synthetic oil. A highly active dispersed catalyst has been developed which enables the operation of the co-processing unit at relatively moderate and high temperatures and relatively high pressure. Under the current contract, a multi-year research program was undertaken to study the technical and economic feasibility of this technology. All the contractual tasks were completed. Autoclave experiments were carried out to evaluate dispersed vanadium catalysts, molybdenum catalysts, and a less costly UOP-proprietary catalyst preparation technique. Autoclave experiments were also carried out in support of the continuous pilot plant unit operation and to study the effects of the process variables (pressure, temperature, and metal loading on the catalyst). A total of 24 continuous pilot plant runs were made. Research and development efforts during the pilot plant operations were concentrated on addressing the cost effectiveness of the UOP single-stage slurry catalyzed co-processing concept based on UOP experience gained in the previous DOE contract. To this end, effect of catalyst metal concentration was studied and a highly-active Mo-based catalyst was developed. This catalyst enabled successful long-term operation (924 hours) of the continuous bench-scale plant at highly severe operating conditions of 3,000 psig, 465{degree}C temperature, and 2:1 resid-to-MAF (moisture- and ash-free) coal ratio with 0.1 wt % active metal. The metal loading of the catalyst was low enough to consider the catalyst as a disposable slurry catalyst. Also, liquid recycle was incorporated in the pilot plant design to increase the, reactor back mixing and to increase the flow of liquid through the reactor (to introduce turbulence in the reactor) and to represent the design of a commercial-scale reactor.

  8. Pipeline Morphing and Virtual Pipelines W. Luk, N. Shirazi, S.R. Guo and P.Y.K. Cheung

    E-Print Network [OSTI]

    Cheung, Peter Y. K.

    Pipeline Morphing and Virtual Pipelines W. Luk, N. Shirazi, S.R. Guo and P.Y.K. Cheung Department of Computing, Imperial College, 180 Queen's Gate, London SW7 2BZ, UK Abstract. Pipeline morphing is a simple but e ective technique for re- con guring pipelined FPGA designs at run time. By overlapping com

  9. Middleware for Astronomical Data Analysis Pipelines

    SciTech Connect (OSTI)

    Abdulla, G; Liu, D; Garlick, J; Miller, M; Nikolaev, S; Cook, K; Brase, J

    2005-01-26

    In this paper the authors describe the approach to research, develop, and evaluate prototype middleware tools and architectures. The developed tools can be used by scientists to compose astronomical data analysis pipelines easily. They use the SuperMacho data pipelines as example applications to test the framework. they describe their experience from scheduling and running these analysis pipelines on massive parallel processing machines. they use MCR a Linux cluster machine with 1152 nodes and Luster parallel file system as the hardware test-bed to test and enhance the scalability of the tools.

  10. Natural Pipeline of America Check Presentation

    E-Print Network [OSTI]

    Unknown

    2011-08-17

    stream_source_info TR-330 Water Loss Test Results for Pipeline Units - Hidalgo Co ID No. 2.pdf.txt stream_content_type text/plain stream_size 17364 Content-Encoding ISO-8859-1 stream_name TR-330 Water Loss Test Results for Pipeline... Units - Hidalgo Co ID No. 2.pdf.txt Content-Type text/plain; charset=ISO-8859-1 TR-330 2008 Water Loss Test Results for the Pipeline Units: I-19/I-18, I-7A and I-22 Hidalgo County Irrigation District No. 2...

  11. Design method addresses subsea pipeline thermal stresses

    SciTech Connect (OSTI)

    Suman, J.C.; Karpathy, S.A. )

    1993-08-30

    Managing thermal stresses in subsea pipelines carrying heated petroleum requires extensive thermal-stress analysis to predict trouble spots and to ensure a design flexible enough to anticipate stresses and expansions. Explored here are various methods for resolving predicaments posed by thermal loads and resulting deformations by keeping the stresses and deformations in the pipeline system within allowable limits. The problems posed by thermal stresses are not unique; the solutions proposed here are. These methods are based on recent work performed for a major Asian subsea pipeline project currently under construction.

  12. Thermal emission and absorption of radiation in finite inverted-opal photonic crystals

    SciTech Connect (OSTI)

    Florescu, Marian; Stimpson, Andrew J.; Lee, Hwang; Dowling, Jonathan

    2005-09-15

    We study theoretically the optical properties of a finite inverted-opal photonic crystal. The light-matter interaction is strongly affected by the presence of the three-dimensional photonic crystal and the alterations of the light emission and absorption processes can be used to suppress or enhance the thermal emissivity and absorptivity of the dielectric structure. We investigate the influence of the absorption present in the system on the relevant band edge frequencies that control the optical response of the photonic crystal. Our study reveals that the absorption processes cause spectral broadening and shifting of the band edge optical resonances, and determine a strong reduction of the photonic band gap spectral range. Using the angular and spectral dependence of the band edge frequencies for stop bands along different directions, we argue that by matching the blackbody emission spectrum peak with a prescribed maximum of the absorption coefficient, it is possible to achieve an angle-sensitive enhancement of the thermal emission/absorption of radiation. This result opens a way to realize a frequency-sensitive and angle-sensitive photonic crystal absorbers/emitters.

  13. Evacuated optical structure comprising optical bench mounted to sidewall of vacuum chamber in a manner which inhibits deflection and rotation of the optical bench

    DOE Patents [OSTI]

    Bowers, Joel M. (Livermore, CA)

    1994-01-01

    An improved evacuated optical structure is disclosed comprising an optical bench mounted in a vacuum vessel in a manner which inhibits transmission of movement of the vacuum vessel to the optical bench, yet provides a compact and economical structure. The vacuum vessel is mounted, through a sidewall thereof, to a support wall at four symmetrically positioned and spaced apart areas, each of which comprises a symmetrically positioned group of mounting structures passing through the sidewall of the vacuum vessel. The optical bench is pivotally secured to the vacuum vessel by four symmetrically spaced apart bolts and spherical bearings, each of which is centrally positioned within one of the four symmetrically positioned groups of vacuum vessel mounting structures. Cover plates and o-ring seals are further provided to seal the vacuum vessel mounting structures from the interior of the vacuum vessel, and venting bores are provided to vent trapped gases in the bores used to secure the cover plates and o-rings to the vacuum vessel. Provision for detecting leaks in the mounting structures from the rear surface of the vacuum vessel sidewall facing the support wall are also provided. Deflection to the optical bench within the vacuum vessel is further minimized by tuning the structure for a resonant frequency of at least 100 Hertz.

  14. Evacuated optical structure comprising optical bench mounted to sidewall of vacuum chamber in a manner which inhibits deflection and rotation of the optical bench

    DOE Patents [OSTI]

    Bowers, J.M.

    1994-04-19

    An improved evacuated optical structure is disclosed comprising an optical bench mounted in a vacuum vessel in a manner which inhibits transmission of movement of the vacuum vessel to the optical bench, yet provides a compact and economical structure. The vacuum vessel is mounted, through a sidewall thereof, to a support wall at four symmetrically positioned and spaced apart areas, each of which comprises a symmetrically positioned group of mounting structures passing through the sidewall of the vacuum vessel. The optical bench is pivotally secured to the vacuum vessel by four symmetrically spaced apart bolts and spherical bearings, each of which is centrally positioned within one of the four symmetrically positioned groups of vacuum vessel mounting structures. Cover plates and o-ring seals are further provided to seal the vacuum vessel mounting structures from the interior of the vacuum vessel, and venting bores are provided to vent trapped gases in the bores used to secure the cover plates and o-rings to the vacuum vessel. Provision for detecting leaks in the mounting structures from the rear surface of the vacuum vessel sidewall facing the support wall are also provided. Deflection to the optical bench within the vacuum vessel is further minimized by tuning the structure for a resonant frequency of at least 100 Hertz. 10 figures.

  15. Method and apparatus for constructing buried pipeline systems

    SciTech Connect (OSTI)

    Heuer, C.E.; Hsu, H.; Jahns, H.O.

    1982-11-09

    A method and apparatus for mitigating or eliminating the frost heave of refrigerated pipelines buried in frost-susceptible soil are provided. A blanket of heat absorbent material is placed over the pipeline on the surface of the soil to increase the flow of heat into the region surrounding the pipeline. This technique may be used in combination with other frost heave mitigation techniques, such as insulating the pipeline and supporting the pipeline with a heave resistant bedding material.

  16. EIS-0433: Keystone XL Pipeline

    Broader source: Energy.gov [DOE]

    The proposed Keystone XL project consists of a 1,700-mile crude oil pipeline and related facilities that would primarily be used to transport Western Canadian Sedimentary Basin crude oil from an oil supply hub in Alberta, Canada to delivery points in Oklahoma and Texas. This EIS, prepared by the Department of State, evaluates the environmental impacts of the proposed Keystone XL project. DOEs Western Area Power Administration, a cooperating agency, has jurisdiction over certain proposed transmission facilities (construction and operation of a short 230-kv transmission line and construction of a new substation). The State Department published a notice in the Federal Register on February 3, 2012, regarding the denial of the Keystone XL presidential permit (77 FR 5614).

  17. Using Natural Gas Transmission Pipeline Costs to Estimate Hydrogen Pipeline Costs

    E-Print Network [OSTI]

    Parker, Nathan

    2004-01-01

    higher demand push US natural gas construction plans. Using Natural Gas Transmission Pipeline Costs to Estimatethe construction costs of natural gas, oil, and petroleum

  18. Location, location, location: utilizing pipelines and services to more effectively georeference the world's biodiversity data

    E-Print Network [OSTI]

    2009-01-01

    location, location: utilizing pipelines and services to morebut also to create pipelines integrated with humanbecome available [8]. These pipelines can be developed to

  19. Pipelines, Pathways, and Payoffs: Economic Challenges and Returns to Changing Demographics in California

    E-Print Network [OSTI]

    Stiles, Jon; Brady, Henry

    2007-01-01

    on Multiple Pathways Pipelines, Pathways, and Payoffs:Jon Stiles & Henry Brady Pipelines, Pathways, and Payoffs:of the educational pipeline to describe how students

  20. Stuck in the Pipeline: A Critical Review of STEM Workforce Literature

    E-Print Network [OSTI]

    Metcalf, Heather

    2010-01-01

    and science careers: Leaky pipeline or gender filter? GenderL. (2006). Expanding the pipeline: Transforming the cultureThe incredible shrinking pipeline. Inroads: SIGCE Bulletin,

  1. Efficient, distributed and interactive neuroimaging data analysis using the LONI Pipeline

    E-Print Network [OSTI]

    2009-01-01

    A. W. (2003). The LONI pipeline process- ing environment.in Neuroinformatics LONI Pipeline Thompson, P. M. (2006).provenance using the LONI pipeline workfl ow environment.

  2. Applications of the pipeline environment for visual informatics and genomics computations

    E-Print Network [OSTI]

    2011-01-01

    et al. : Applications of the pipeline environment for visualusing the LONI pipeline. Frontiers in Neuroinformatics 2010,Access Applications of the pipeline environment for visual

  3. Applications of the Pipeline Environment for Visual Informatics and Genomics Computations

    E-Print Network [OSTI]

    2011-01-01

    et al. : Applications of the pipeline environment for visualusing the LONI pipeline. Frontiers in Neuroinformatics 2010,Access Applications of the pipeline environment for visual

  4. Experience with pipelined multiple instruction streams

    SciTech Connect (OSTI)

    Jordon, H.F.

    1984-01-01

    Pipelining has been used to implement efficient, high-speed vector computers. It is also an effective method for implementing multiprocessors. The Heterogeneous Element Processor (HEP) built by Denelcor Incorporated is the first commercially available computer system to use pipelining to implement multiple processes. This paper introduces the architecture and programming environment of the HEP and surveys a range of scientific applications programs for which parallel versions have been produced, tested, and analyzed on this computer. In all cases, the ideal of one instruction completion every pipeline step time is closely approached. Speed limitations in the parallel programs are more often a result of the extra code necessary to ensure synchronization than of actual synchronization lockout at execution time. The pipelined multiple instruction stream architecture is shown to cover a wide range of applications with good utilization of the parallel hardware.

  5. Florida products pipeline set to double capacity

    SciTech Connect (OSTI)

    True, W.R.

    1995-11-13

    Directional drilling has begun this fall for a $68.5 million, approximately 110,000 b/d expansion of Central Florida Pipeline Co.`s refined products line from Tampa to Orlando. The drilling started in August and is scheduled to conclude this month, crossing under seven water bodies in Hillsborough, Polk, and Osceola counties. The current 6 and 10-in. system provides more than 90% of the petroleum products used in Central Florida, according to Central Florida Pipeline. Its additional capacity will meet the growing region`s demand for gasoline, diesel, and jet fuel. The new pipeline, along with the existing 10-in. system, will increase total annual capacity from 30 million bbl (82,192 b/d) to approximately 70 million bbl (191,781 b/d). The older 6-in. line will be shutdown when the new line is operating fully. The steps of pipeline installation are described.

  6. Overview of interstate hydrogen pipeline systems.

    SciTech Connect (OSTI)

    Gillette, J .L.; Kolpa, R. L

    2008-02-01

    The use of hydrogen in the energy sector of the United States is projected to increase significantly in the future. Current uses are predominantly in the petroleum refining sector, with hydrogen also being used in the manufacture of chemicals and other specialized products. Growth in hydrogen consumption is likely to appear in the refining sector, where greater quantities of hydrogen will be required as the quality of the raw crude decreases, and in the mining and processing of tar sands and other energy resources that are not currently used at a significant level. Furthermore, the use of hydrogen as a transportation fuel has been proposed both by automobile manufacturers and the federal government. Assuming that the use of hydrogen will significantly increase in the future, there would be a corresponding need to transport this material. A variety of production technologies are available for making hydrogen, and there are equally varied raw materials. Potential raw materials include natural gas, coal, nuclear fuel, and renewables such as solar, wind, or wave energy. As these raw materials are not uniformly distributed throughout the United States, it would be necessary to transport either the raw materials or the hydrogen long distances to the appropriate markets. While hydrogen may be transported in a number of possible forms, pipelines currently appear to be the most economical means of moving it in large quantities over great distances. One means of controlling hydrogen pipeline costs is to use common rights-of-way (ROWs) whenever feasible. For that reason, information on hydrogen pipelines is the focus of this document. Many of the features of hydrogen pipelines are similar to those of natural gas pipelines. Furthermore, as hydrogen pipeline networks expand, many of the same construction and operating features of natural gas networks would be replicated. As a result, the description of hydrogen pipelines will be very similar to that of natural gas pipelines. The following discussion will focus on the similarities and differences between the two pipeline networks. Hydrogen production is currently concentrated in refining centers along the Gulf Coast and in the Farm Belt. These locations have ready access to natural gas, which is used in the steam methane reduction process to make bulk hydrogen in this country. Production centers could possibly change to lie along coastlines, rivers, lakes, or rail lines, should nuclear power or coal become a significant energy source for hydrogen production processes. Should electrolysis become a dominant process for hydrogen production, water availability would be an additional factor in the location of production facilities. Once produced, hydrogen must be transported to markets. A key obstacle to making hydrogen fuel widely available is the scale of expansion needed to serve additional markets. Developing a hydrogen transmission and distribution infrastructure would be one of the challenges to be faced if the United States is to move toward a hydrogen economy. Initial uses of hydrogen are likely to involve a variety of transmission and distribution methods. Smaller users would probably use truck transport, with the hydrogen being in either the liquid or gaseous form. Larger users, however, would likely consider using pipelines. This option would require specially constructed pipelines and the associated infrastructure. Pipeline transmission of hydrogen dates back to late 1930s. These pipelines have generally operated at less than 1,000 pounds per square inch (psi), with a good safety record. Estimates of the existing hydrogen transmission system in the United States range from about 450 to 800 miles. Estimates for Europe range from about 700 to 1,100 miles (Mohipour et al. 2004; Amos 1998). These seemingly large ranges result from using differing criteria in determining pipeline distances. For example, some analysts consider only pipelines above a certain diameter as transmission lines. Others count only those pipelines that transport hydrogen from a producer to a customer (e.g., t

  7. Pump packages for Colombian crude oil pipeline

    SciTech Connect (OSTI)

    1994-05-01

    The Caterpillar Large Engine Center recently packaged ten engine-driven centrifugal pump packages for British Petroleum Exploration`s crude oil pipeline in South America. The ten sets, which use Ingersoll-Dresser centrifugal pumps, are designed to increase significantly the output of BP`s Central LLanos pipeline located in a remote region near Bogota, Colombia. BP anticipates that the addition of the new pump packages will increase daily volume from the current 100000 barrels to approximately 210000 barrels when the upgrade of the pipeline is completed in September. The ten sets are installed at three separate pumping stations. The stations are designed to operate continuously while unmanned, with only periodic maintenance required. The pump packages are powered by Caterpillar 3612 engines rated 3040 kW at 1000 r/min. The 12-cylinder engines are turbocharged and charge-air cooled and use the pipeline oil as both fuel and a cooling medium for the fuel injectors.

  8. On-the-fly pipeline parallelism

    E-Print Network [OSTI]

    Lee, I-Ting Angelina

    Pipeline parallelism organizes a parallel program as a linear sequence of s stages. Each stage processes elements of a data stream, passing each processed data element to the next stage, and then taking on a new element ...

  9. Seadrift/UCAR pipelines achieve ISO registration

    SciTech Connect (OSTI)

    Arrieta, J.R.; Byrom, J.A.; Gasko, H.M. )

    1992-10-01

    Proper meter station design using gas orifice meters must include consideration of a number of factors to obtain the best accuracy available. This paper reports that Union Carbide's Seadrift/UCAR Pipelines has become the world's first cross-country pipelines to comply with the International Standards Organization's quality criteria for transportation and distribution of ethylene. Carbide's organization in North America and Europe, with 22 of the corporation's businesses having the internationally accepted quality system accredited by a third-party registrar.

  10. Are shorted pipeline casings a problem

    SciTech Connect (OSTI)

    Gibson, W.F. )

    1994-11-01

    The pipeline industry has many road and railroad crossings with casings which have been in service for more than 50 years without exhibiting any major problems, regardless of whether the casing is shorted to or isolated from the carrier pipe. The use of smart pigging and continual visual inspection when retrieving a cased pipeline segment have shown that whether shorted or isolated, casings have no significant bearing on the presence or absence of corrosion on the carrier pipe.

  11. World pipeline work set for rapid growth

    SciTech Connect (OSTI)

    Not Available

    1992-08-01

    This paper reports on international pipeline construction which has entered a fast-growth period, accelerated by the new political and economic realities around the world and increasing demand for natural gas, crude oil and refined petroleum products. Many projects are under way or in planning for completion in the mid- to late 1990s in Europe, South America, Asia and the Middle East. Pipeline And Gas Journal's projection calls for construction or other work on 30,700 miles of new natural gas, crude oil and refined products pipelines in the 1992-93 period outside Canada and the U.S. These projects will cost an estimated $30 billion-plus. Natural gas pipelines will comprise most of the mileage, accounting for almost 23,000 miles at an estimated cost of $26.3 billion. Products pipelines, planned or under construction, will add another 5,800 miles at a cost of $2.8 billion. Crude oil pipelines, at a minimum, will total 1,900 new miles at a cost of slightly under $1 billion.

  12. Bayou pipeline crossing requires helical pilings

    SciTech Connect (OSTI)

    Not Available

    1992-01-01

    This paper discusses a routine inspection by Transcontinental Gas Pipe Line Corp. which revealed the approximately 100 ft of its 30-in gas pipeline in St. Landry Parish, La., had become suspended. The situation occurred in the West Atchafalaya Floodway after periods of heavy rain produced strong currents that scoured the soil from around and below the pipeline. To protect the pipeline from possible damage from overstressing, Transco awarded a lump-sum contract to Energy Structures Inc., Houston, to design and install pipeline supports. The pipeline supports engineered by ESI used helical-screw pilings instead of conventional driven pilings. The helical piles were manufactured by A.B. Chance Co., Centralia, Mo. Typically, helical pilings consist of steel pipe ranging from 3.5- to 8-in. diameter pipe with one or more helixes welded onto the pipe. Selection of the proper piling cross-section was based on design loads and soil conditions at the project locations. length was determined by the amount of pipeline suspension and on-site soil conditions.

  13. Energy Minimization of a Pipelined Processor using a Low Voltage Pipelined Cache

    E-Print Network [OSTI]

    Mooney, Vincent

    condition in the embedded systems area. Especially for mobile de- vices, power and energy usage canEnergy Minimization of a Pipelined Processor using a Low Voltage Pipelined Cache Jun Cheol Park, Vincent J. Mooney III, Krishna Palem and Kyu-won Choi School of Electrical and Computer Engineering

  14. The 14th Pipeline and Gas Journal 500 report. [Statistical dimensions of leading US pipeline companies

    SciTech Connect (OSTI)

    Congram, G.E.

    1994-09-01

    This article presents compiled data on oil and gas pipeline systems in the US and includes specific information on mileage, volume of transported fluids, and cost information. It lists the rankings based on miles of pipeline, units of gas sold, number of customers, units of petroleum sold, and utility by production sales. Information is also presented in alphabetical format.

  15. Measurement of observables sensitive to coherence effects in hadronic Z decays with the OPAL detector at LEP

    E-Print Network [OSTI]

    Fischer, Nadine; Kluth, Stefan; Pltzer, Simon; Skands, Peter

    2015-01-01

    A study of QCD coherence is presented based on a sample of about 397000 $e^+e^-$ hadronic annihilation events collected at $\\sqrt{s}=91$ GeV with the OPAL detector at LEP. The study is based on four recently proposed observables that are sensitive to coherence effects in the perturbative regime. The measurement of these observables is presented, along with a comparison with the predictions of different parton shower models. The models include both conventional parton shower models and dipole antenna models. Different ordering variables are used to investigate their influence on the predictions.

  16. Direct liquefaction proof-of-concept program: Final topical report, Bench Run 03 (227-93)

    SciTech Connect (OSTI)

    Comolli, A.G.; Pradhan, V.R.; Lee, T.L.K.; Karolkiewicz, W.F.; Popper, G.

    1996-12-01

    This report presents the results of bench-scale work, Bench Run PB-03, conducted under the DOE Proof of Concept--Bench Option Program in direct coal liquefaction at Hydrocarbon Technologies, Inc. in Lawrenceville, New Jersey. The Bench Run PB-03 was the third of the nine runs planned in the POC Bench Option Contract between the US DOE and Hydrocarbon Technologies, Inc. The Bench Run PB-03 had multiple goals. These included the evaluation of the effects of dispersed slurry catalyst loadings and types on the performance of two-stage direct coal liquefaction, the effect of HTI`s new iron catalyst, modified with phosphorus, and the evaluation of the effect of recycle solvent hydrotreatment on the overall process performance. PB-03 employed a close-coupled (no interstage separator) configuration of hydroconversion reactors. Other features of PB-03 included the use of an in-line fixed bed hydrotreater for the net product. No significant effects on process performance was found by changing the loadings of iron and molybdenum in the ranges of 1,000--5,000 ppm for iron and 50--100 ppm for molybdenum. However, the modification of HTI`s iron-based gel catalyst with 100 ppm of phosphorous improved the process performance significantly. A newly tested Mo-Carbon dispersed catalyst was not found to be any better than Molyvan-A, which was used during all but one condition of PB-03. Hydrotreatment of part of the recycle solvent was found to have a positive influence on the overall performance.

  17. Bench-scale Kinetics Study of Mercury Reactions in FGD Liquors

    SciTech Connect (OSTI)

    Gary Blythe; John Currie; David DeBerry

    2008-03-31

    This document is the final report for Cooperative Agreement DE-FC26-04NT42314, 'Kinetics Study of Mercury Reactions in FGD Liquors'. The project was co-funded by the U.S. DOE National Energy Technology Laboratory and EPRI. The objective of the project has been to determine the mechanisms and kinetics of the aqueous reactions of mercury absorbed by wet flue gas desulfurization (FGD) systems, and develop a kinetics model to predict mercury reactions in wet FGD systems. The model may be used to determine optimum wet FGD design and operating conditions to maximize mercury capture in wet FGD systems. Initially, a series of bench-top, liquid-phase reactor tests were conducted and mercury species concentrations were measured by UV/visible light spectroscopy to determine reactant and byproduct concentrations over time. Other measurement methods, such as atomic absorption, were used to measure concentrations of vapor-phase elemental mercury, that cannot be measured by UV/visible light spectroscopy. Next, a series of bench-scale wet FGD simulation tests were conducted. Because of the significant effects of sulfite concentration on mercury re-emission rates, new methods were developed for operating and controlling the bench-scale FGD experiments. Approximately 140 bench-scale wet FGD tests were conducted and several unusual and pertinent effects of process chemistry on mercury re-emissions were identified and characterized. These data have been used to develop an empirically adjusted, theoretically based kinetics model to predict mercury species reactions in wet FGD systems. The model has been verified in tests conducted with the bench-scale wet FGD system, where both gas-phase and liquid-phase mercury concentrations were measured to determine if the model accurately predicts the tendency for mercury re-emissions. This report presents and discusses results from the initial laboratory kinetics measurements, the bench-scale wet FGD tests, and the kinetics modeling efforts.

  18. A Cheap Levitating Gas/Load Pipeline

    E-Print Network [OSTI]

    Alexander Bolonkin

    2008-12-02

    Design of new cheap aerial pipelines, a large flexible tube deployed at high altitude, for delivery of natural (fuel) gas, water and other payload over a long distance is delineated. The main component of the natural gas is methane which has a specific weight less than air. A lift force of one cubic meter of methane equals approximately 0.5 kg (1 pound). The lightweight film flexible pipeline can be located in air at high altitude and, as such, does not damage the environment. Using the lift force of this pipeline and wing devices payloads of oil, water, or other fluids, or even solids such as coal, cargo, passengers can be delivered cheaply at long distance. This aerial pipeline dramatically decreases the cost and the time of construction relative to conventional pipelines of steel which saves energy and greatly lowers the capital cost of construction. The article contains a computed project for delivery 24 billion cubic meters of gas and tens of million tons of oil, water or other payload per year.

  19. Some applications of pipelining techniques in parallel scientific computing

    E-Print Network [OSTI]

    Deng, Yuanhua

    1996-01-01

    columnwise partitioning schemes. For chasing algorithms, in addition to the pipelining, we apply block-cyclic partitioning, group message-passing techniques to enhance the performance of the pipelined parallel algorithms. The numerical results for the use...

  20. REAL-TIME OPTIMIZATION FOR AIR LIQUIDE GAS PIPELINES NETWORK

    E-Print Network [OSTI]

    Grossmann, Ignacio E.

    REAL-TIME OPTIMIZATION FOR AIR LIQUIDE GAS PIPELINES NETWORK Yash Puranik and Nick Sahinidis (CMU pipelines connecting air separation units and consumers Consumer Consumer O2 network N2 network #12

  1. EIA - Natural Gas Pipeline Network - Regional Overview and Links

    U.S. Energy Information Administration (EIA) Indexed Site

    number of individual natural gas pipeline systems (more than 90) and the highest level of pipeline mileage (over 106,000). The Central Region produces more gas than it consumes and...

  2. U.S. pipelines continue gains into 1996

    SciTech Connect (OSTI)

    True, W.R.

    1996-11-25

    US interstate natural gas, crude oil, and petroleum product pipelines turned in health performances for 1995, continuing impressive efficiency improvements that were evident in 1994. Revenues and incomes earned from operations along with volumes moved are among data annually submitted to FERC and tracked by Oil and Gas Journal year to year in this exclusive report. This year`s report expands coverage of plans for new construction and completed-cost figures by including Canadian activity for the same 12-month period: July 1, 1995, to June 30, 1996. The paper includes data on the following: pipeline revenues, incomes--1995; North American pipeline costs, estimated; US pipeline costs, estimated vs. actual; North American compressor-construction costs; US compressor costs, estimated vs. actual; Canadian pipeline construction costs, actual; US interstate mileage; investment in liquids pipelines; 10 years of land construction costs; to 10 interstate liquids lines; top 10 interstate gas lines; liquids pipeline companies; and gas pipeline companies.

  3. Weather, construction inflation could squeeze North American pipelines

    SciTech Connect (OSTI)

    True, W.R.

    1998-08-31

    Major North American interstate and interprovincial pipeline companies appear headed for a squeeze near-term: 1997 earnings from operations were down for the second straight year even as the companies expected new construction to begin this year or later to cost more. The effects of warmer-than-normal weather during 1997 in North America made a showing in annual reports filed by US regulated interstate oil and gas pipeline companies with the US Federal Energy Regulatory Commission (FERC). This paper contains data on the following: pipeline revenues, incomes--1997; North American pipeline costs; North American pipeline costs (estimated vs. actual); North American compressor construction costs; US compressor costs (estimated vs. actual); US interstate mileage; investment in liquids pipelines; 10 years of land construction costs; top 10 interstate liquids lines; top 10 interstate gas lines; liquids pipeline companies; and gas pipeline companies.

  4. Modeling fatique behavior of dents in petroleum pipelines

    E-Print Network [OSTI]

    Hoffmann, Roger Lynn

    1997-01-01

    Dents in pipelines can seriously reduce the design life of a pipeline. Dents cause stress concentrations to develop which make dents susceptible to fatigue failures. Acceptance criteria of dents are currently only based on dent depth. To understand...

  5. Automatically Generating Coarse Grained Software Pipelining from Declaratively Specified Communication

    E-Print Network [OSTI]

    Lumsdaine, Andrew

    on three benchmarks that are amenable to software pipelining. * Student author. 1 #12;A[j] storage location

  6. Deliverability on the Interstate Natural Gas Pipeline System

    Reports and Publications (EIA)

    1998-01-01

    Examines the capability of the national pipeline grid to transport natural gas to various U.S. markets.

  7. Coal-log pipeline system development

    SciTech Connect (OSTI)

    Liu, H.

    1991-12-01

    Project tasks include: (1) Perform the necessary testing and development to demonstrate that the amount of binder in coal logs can be reduced to 8% or lower to produce logs with adequate strength to eliminate breakage during pipeline transportation, under conditions experienced in long distance pipeline systems. Prior to conducting any testing and demonstration, grantee shall perform an information search and make full determination of all previous attempts to extrude or briquette coal, upon which the testing and demonstration shall be based. (2) Perform the necessary development to demonstrate a small model of the most promising injection system for coal-logs, and tests the logs produced. (3) Conduct economic analysis of coal-log pipeline, based upon the work to date. Refine and complete the economic model. (VC)

  8. Caspian pipeline combine awards construction contract

    SciTech Connect (OSTI)

    Not Available

    1992-11-02

    This paper reports that the Caspian Pipeline Consortium (CPC) has let contract to Overseas Bechtel Inc. for a 500 mile crude oil export pipeline in Russia. Bechtel will provide engineering, procurement, financing, and construction services and serve as project manager for the 42 inc. line that will extend west from Grozny, near the Caspian Sea, to Novorossiisk, on the Black Sea. Estimated cost is more than $850 million. At Grozny, the new line will tie into 800 miles of existing pipeline that runs along the north shore of the Caspian Sea from supergiant Tengiz field in Kazakhstan. Together, the two segments will form a 1,300 mile system capable of shipping crude oil from the Tengiz region and from Baku, Azerbaijan, to a new terminal and port facilities at Novorossiisk for shipment to world markets, ultimately reaching open oceans via the Mediterranean Sea.

  9. Subsea pipeline isolation systems: Reliability and costs

    SciTech Connect (OSTI)

    Masheder, R.R.

    1996-08-01

    Since the Piper Alpha disaster, more than 80 subsea isolation systems (SSIS) have been installed in subsea gas and oil pipelines in the U.K. continental shelf at an estimated cost in the region of {Brit_pounds}500 million. The reliability and costs of these installations have now been assessed between Dec. 1992 and Oct. 1993. This assessment was based upon comprehensive reliability and cost databases which were established so that the studies could be based upon factual information in order to obtain a current status as required by the sponsoring group. The study consultants report findings have now been consolidated into a report by the UKOOA Pipeline Valve Work Group. Probabilities of failure for different types of valves and systems have been assessed and expenditures broken down and compared. The results of the studies and the conclusions drawn by UKOOA Pipeline Valve Group and the HSE Offshore Safety Division are presented in this paper.

  10. Pipeline rehabilitation -- conclusion: Two projects highlight water, air processes for reconditioning pipeline surfaces

    SciTech Connect (OSTI)

    Taylor, S.A.; Werner, D.P. (CRC-Evans Rehabilitation Systems Inc., Houston, TX (United States))

    1994-02-14

    In jobs for United Texas Transmission Co. and Natural Gas Pipeline Co. of America, a proprietary system of high-pressure water jet blasting for cleaning and air abrasive or mechanical-wheel blasting for surface preparation increased productivity and decreased time required for long-line pipelines rehabilitation projects. This second of two articles presents field results of the process' use for cleaning, conditioning, and coating pipelines by line-travel equipment. The first article detailed the procedure and notes tests of the process for asbestos-containing coatings.

  11. Design of a model pipeline for testing of piezoelectric micro power generator for the Trans-Alaska Pipeline System

    E-Print Network [OSTI]

    Lah, Mike M. (Mike Myoung)

    2007-01-01

    In order to provide a reliable corrosion detection system for the Trans-Alaska Pipeline System (TAPS), a distributed wireless self-powered sensor array is needed to monitor the entire length of the pipeline at all times. ...

  12. HIGH-PERFORMANCE PARALLEL ADDITION USING HYBRID WAVE-PIPELINING

    E-Print Network [OSTI]

    Nyathi, Jabulani

    HIGH-PERFORMANCE PARALLEL ADDITION USING HYBRID WAVE-PIPELINING James Levy, Jabulani Nyathi, jabu, jdelgado)@eecs.wsu.edu Abstract-- Pipelining digital systems has been shown to provide significant performance gains over non-pipelined systems and remains a standard in microprocessor design

  13. A shading pipeline for 2D animation techniques HEDLENA BEZERRA

    E-Print Network [OSTI]

    de Figueiredo, Luiz Henrique

    A shading pipeline for 2D animation techniques HEDLENA BEZERRA 1 , LUIZ VELHO 2 , BRUNO FEIJ 1 1 Pura e Aplicada Figure 1: Pipeline - [D] Digitization; [T] Skeletonization; [C] Curve Extraction; [N is unknown, and the position information lacks depth. This work describes a pipeline to process 2D images

  14. A Component Selection Algorithm for HighPerformance Pipelines

    E-Print Network [OSTI]

    California at Irvine, University of

    A Component Selection Algorithm for HighPerformance Pipelines Smita Bakshi Daniel D. Gajski the critical paths. This report presents a costoptimized algorithm for selecting components and pipelining Problem Statement and Definitions 9 5 Component Selection and Pipelining 10 5.1 An overview

  15. Soft Vector Processors with Streaming Pipelines A. Severance , J. Edwards

    E-Print Network [OSTI]

    Lemieux, Guy

    Soft Vector Processors with Streaming Pipelines A. Severance , J. Edwards aaronsev-multiplexed fashion, this does not exploit a key strength of FPGA performance: pipeline par- allelism. This paper shows how streaming pipelines can be integrated into the datapath of a SVP to achieve dramatic speedups

  16. Pipelineable On-Line Encryption Farzaneh Abed1

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    Pipelineable On-Line Encryption Farzaneh Abed1 , Scott Fluhrer2 , Christian Forler1, Eik List1 chosen-ciphertext attacks with pipelineability to support efficient implementations. POE combines a block POET, a provably secure on-line AE scheme, which inherits pipelineability and chosen

  17. Software Requirements Specification Offline MIPS-24m Pipelines

    E-Print Network [OSTI]

    Masci, Frank

    Software Requirements Specification for Offline MIPS-24µm Pipelines Prepared by Frank Masci (fmasci #12;Software Requirements Specification Version 4.5 Offline MIPS-24µm Pipelines 20 June 2004 ii 1. Revision History Version Description Date 1.0 Initial version June 20, 2002 2.0 · Modified pipeline flow

  18. Behavior of fullscale concrete segmented pipelines under permanent ground displacements

    E-Print Network [OSTI]

    Michalowski, Radoslaw L.

    Behavior of fullscale concrete segmented pipelines under permanent ground displacements Junhee, Indiana; d Department of Civil Engineering, Merrimack College, MA ABSTRACT Concrete pipelines are one pipelines and eventually lead to joint failures. In order to understand and model the typical failure

  19. Runtime Assignment of Reconfigurable Hardware Components for Image Processing Pipelines

    E-Print Network [OSTI]

    Meleis, Waleed

    Runtime Assignment of Reconfigurable Hardware Components for Image Processing Pipelines Heather balance the benefits and costs of using FPGAs. Image processing applications of- ten consist of a pipeline implementations of image processing algorithms for a given problem. The pipeline assignment problem chooses from

  20. Software Pipelining: An Effective Scheduling Technique for VLIW Machines

    E-Print Network [OSTI]

    Lam, Monica

    Software Pipelining: An Effective Scheduling Technique for VLIW Machines Monica Lam Department that software pipelining is an effective and viable scheduling technique for VLIW processors. In software pipelining, iterations of a loop in the sourceprogram are continuously initiated at constant intervals

  1. INT WFS Pipeline Processing Mike Irwin & Jim Lewis

    E-Print Network [OSTI]

    Irwin, Mike

    INT WFS Pipeline Processing Mike Irwin & Jim Lewis Institute of Astronomy, Madingley Road pipeline processing developed specifically for the Wide Field Sur­ vey (WFS). The importance of accurate and complete FITS header information is stresed. Data processing products output from the complete pipeline

  2. Boosting FMAX of Processor Pipelines using Intentional Memory Clock Skew

    E-Print Network [OSTI]

    Lemieux, Guy

    Boosting FMAX of Processor Pipelines using Intentional Memory Clock Skew Alexander Brant 1 , Ameer--FPGAs are increasingly being used to implement many new applications, including pipelined processor designs. Designers often employ memories to communicate and pass data between these pipeline stages. However, one

  3. Rotary Pipeline Processors Simon Moore, Peter Robinson, Steve Wilcox

    E-Print Network [OSTI]

    Moore, Simon

    DRAFT Rotary Pipeline Processors Simon Moore, Peter Robinson, Steve Wilcox Computer Laboratory pipeline processor is a new architecture for su- perscalar computing. It is based on a simple and regular pipeline structure which can support several ALUs for effi- cient dispatching of multiple instructions

  4. ABB Review 4/2000 55 ultiphase pipelines connecting

    E-Print Network [OSTI]

    Skogestad, Sigurd

    ABB Review 4/2000 55 ultiphase pipelines connecting remote wellhead platforms and subsea wells-back pipelines to connect subsea processing units directly to on-shore processing plants makes it likely of the multi-phase pipelines connecting wells and remote installations to the processing unit. One common form

  5. A Survey of Pipelined Workflow Scheduling: Models and Algorithms

    E-Print Network [OSTI]

    Benoit, Anne

    A Survey of Pipelined Workflow Scheduling: Models and Algorithms ANNE BENOIT Ecole Normale Sup task-, data-, pipelined-, and/or replicated-parallelism. The scheduling problem that encompasses all of these techniques is called pipelined workflow scheduling, and it has been widely studied in the last decade

  6. Expansion of the U.S. Natural Gas Pipeline Network

    Reports and Publications (EIA)

    2009-01-01

    Additions in 2008 and Projects through 2011. This report examines new natural gas pipeline capacity added to the U.S. natural gas pipeline system during 2008. In addition, it discusses and analyzes proposed natural gas pipeline projects that may be developed between 2009 and 2011, and the market factors supporting these initiatives.

  7. Pipeline Safety Program The Oak Ridge National Laboratory (ORNL)

    E-Print Network [OSTI]

    of natural gas and hazardous liquid pipelines. To assist PHMSA accomplish this mission, ORNL Subject Matter testing, liquefied natural gas facilities, loss of gas or liquid containment, material science pipeline safety regulations, fracture mechanics and metallurgy, hydrogen and natural gas pipeline

  8. Method for route selection of transcontinental natural gas pipelines

    E-Print Network [OSTI]

    Kouroupetroglou, Georgios

    1 Method for route selection of transcontinental natural gas pipelines Fotios G. Thomaidis1@kepa.uoa.gr Abstract. The route of transcontinental natural gas pipelines is characterized by complexity, compared choices. Keywords: Optimum route method, natural gas, transcontinental pipelines, Caspian Region E

  9. Sensor and transmitter system for communication in pipelines

    SciTech Connect (OSTI)

    Cooper, John F.; Burnham, Alan K.

    2013-01-29

    A system for sensing and communicating in a pipeline that contains a fluid. An acoustic signal containing information about a property of the fluid is produced in the pipeline. The signal is transmitted through the pipeline. The signal is received with the information and used by a control.

  10. WITS Image Differencing & Extrac4on pipeline (WIDE)

    E-Print Network [OSTI]

    Masci, Frank

    WITS Image Differencing & Extrac4on pipeline (WIDE) F. Masci, 11 Factory's Image Differencing and Extrac4on pipeline (designed for PTF-I and PTF-2...). 2 #12;The "WIDE" pipeline [from Masci, 2012] 3 #12;Recommenda4ons for WITS

  11. AIPS Memo 112 Capabilities of the VLA pipeline in AIPS

    E-Print Network [OSTI]

    Sjouwerman, Loránt

    AIPS Memo 112 Capabilities of the VLA pipeline in AIPS Lorant O. Sjouwerman March 19, 2007 Abstract This document describes the VLA pipeline procedure. The procedure runs in AIPS, though a system has been set up to process VLA data with this pipeline from a UNIX command line. The latter and an analysis of a pilot

  12. Optimizing buffer sizes for pipeline workflow scheduling with setup times

    E-Print Network [OSTI]

    Benoit, Anne

    Optimizing buffer sizes for pipeline workflow scheduling with setup times Anne Benoit1, Jean real-life applications have a linear pipelined struc- ture, where each data set must go through all (data sets) enters the pipeline and must go through several stages such as filters, encoders, and so

  13. Color Appearance and the Digital Imaging Pipeline Brian A. Wandell

    E-Print Network [OSTI]

    Wandell, Brian A.

    Color Appearance and the Digital Imaging Pipeline Brian A. Wandell Psychology Department Stanford reproduction pipeline, spanning image capture, processing and display, must be designed to account for the properties of the human observer. In designing an image pipeline, three principles of human vision

  14. Capabilities of the VLA pipeline in AIPS Lorant O. Sjouwerman

    E-Print Network [OSTI]

    Sjouwerman, Loránt

    Capabilities of the VLA pipeline in AIPS Lor??ant O. Sjouwerman National Radio Astronomy Observatory November 15, 2006 Abstract This document describes the VLA pipeline procedure. The procedure runs in AIPS, though a system has been set up to process VLA data with this pipeline from a UNIX command line

  15. Performance of Concurrent Rendezvous Systems with Complex Pipeline Structures

    E-Print Network [OSTI]

    Woodside, C. Murray

    Performance of Concurrent Rendezvous Systems with Complex Pipeline Structures Real February 11, 1998 Abstract The term ``complex pipeline'' describes a set of tasks which process incoming data in a sequence, like a pipeline, but have various kinds of parallel execution steps coupled

  16. ORIGINAL ARTICLE PANGEA: pipeline for analysis of next generation

    E-Print Network [OSTI]

    Casella, George

    ORIGINAL ARTICLE PANGEA: pipeline for analysis of next generation amplicons Adriana Giongo1 , David- processing, clustering, database matching and classification, have been compiled into a pipeline called PANGEA. The PANGEA pipeline was written in Perl and can be run on Mac OSX, Windows or Linux. With PANGEA

  17. Comparison of complex effluent treatability in different bench scale microbial electrolysis cells

    E-Print Network [OSTI]

    limited energy recovery (McCarty et al., 2011). Microbial electrochemical technologies (METs), such as microbial electrolysis cells (MECs), have shown great potential for recovering energy from wastewaterComparison of complex effluent treatability in different bench scale microbial electrolysis cells

  18. Algal toxins and reverse osmosis desalination operations: Laboratory bench testing and field monitoring of domoic acid,

    E-Print Network [OSTI]

    Caron, David

    Algal toxins and reverse osmosis desalination operations: Laboratory bench testing and field 2012 Accepted 23 September 2012 Available online 4 October 2012 Keywords: Reverse osmosis Desalination desalination facilities has become an important topic in recent years due to enhanced societal interest

  19. MAGNETIC POLARITY STRATIGRAPHY AND PALEOCENE-EOCENE BIOSTRATIGRAPHY OF POLECAT BENCH,

    E-Print Network [OSTI]

    Gingerich, Philip D.

    MAGNETIC POLARITY STRATIGRAPHY AND PALEOCENE-EOCENE BIOSTRATIGRAPHY OF POLECAT BENCH, NORTHWESTERN Formation in the San Juan Basin of New Mexico. The paleomagnetic stratigraphy of these beds has been studied basins. Here we present a preliminary report on the paleo- magnetic stratigraphy of late Paleocene

  20. Experience with pipelined multiple instruction streams

    SciTech Connect (OSTI)

    Jordan, H.F.

    1984-01-01

    The authors introduces the architecture and programming environment of the heterogeneous element processor (HEP) and surveys a range of scientific applications programs for which parallel versions have been produced, tested, and analyzed on this computer. In all cases, the ideal of one instruction completion every pipeline step time is closely approached. Speed limitations in the parallel programs are more often a result of the extra code necessary to ensure synchronization than of actual synchronization lockout at execution time. The pipelined multiple instruction stream architecture is shown to cover a wide range of applications with good utilization of the parallel hardware. 35 references.

  1. Software design for panoramic astronomical pipeline processing

    E-Print Network [OSTI]

    Lior Shamir; Robert J. Nemiroff; David O. Torrey; Wellesley E. Pereira

    2005-11-23

    We describe the software requirement and design specifications for all-sky panoramic astronomical pipelines. The described software aims to meet the specific needs of super-wide angle optics, and includes cosmic-ray hit rejection, image compression, star recognition, sky opacity analysis, transient detection and a web server allowing access to real-time and archived data. The presented software is being regularly used for the pipeline processing of 11 all-sky cameras located in some of the world's premier observatories. We encourage all-sky camera operators to use our software and/or our hosting services and become part of the global Night Sky Live network.

  2. Innovative Electromagnetic Sensors for Pipeline Crawlers

    SciTech Connect (OSTI)

    J. Bruce Nestleroth

    2006-05-04

    Internal inspection of pipelines is an important tool for ensuring safe and reliable delivery of fossil energy products. Current inspection systems that are propelled through the pipeline by the product flow cannot be used to inspect all pipelines because of the various physical barriers they encounter. Recent development efforts include a new generation of powered inspection platforms that crawl slowly inside a pipeline and are able to maneuver past the physical barriers that can limit inspection. At Battelle, innovative electromagnetic sensors are being designed and tested for these new pipeline crawlers. The various sensor types can be used to assess a wide range of pipeline anomalies including corrosion, mechanical damage, and cracks. Battelle is in the final year on a projected three-year development effort. In the first year, two innovative electromagnetic inspection technologies were designed and tested. Both were based on moving high-strength permanent magnets to generate inspection energy. One system involved translating permanent magnets towards the pipe. A pulse of electric current would be induced in the pipe to oppose the magnetization according to Lenz's Law. The decay of this pulse would indicate the presence of defects in the pipe wall. This inspection method is similar to pulsed eddy current inspection methods, with the fundamental difference being the manner in which the current is generated. Details of this development effort were reported in the first semiannual report on this project. The second inspection methodology is based on rotating permanent magnets. The rotating exciter unit produces strong eddy currents in the pipe wall. At distances of a pipe diameter or more from the rotating exciter, the currents flow circumferentially. These circumferential currents are deflected by pipeline defects such as corrosion and axially aligned cracks. Simple sensors are used to detect the change in current densities in the pipe wall. The second semiannual report on this project reported on experimental and modeling results. The results showed that the rotating system was more adaptable to pipeline inspection and therefore only this system will be carried into the second year of the sensor development. In the third reporting period, the rotating system inspection was further developed. Since this is a new inspection modality without published fundamentals to build upon, basic analytical and experimental investigations were performed. A closed form equation for designing rotating exciters and positioning sensors was derived from fundamental principles. Also signal processing methods were investigated for detection and assessment of pipeline anomalies. A lock in amplifier approach was chosen as the method for detecting the signals. Finally, mechanical implementations for passing tight restrictions such as plug valves were investigated. This inspection concept is new and unique; a United States patent application has been submitted. In this reporting period, a general design of the rotating permanent magnet inspection system is presented. The rotating permanent magnet inspection system is feasible for pipes ranging in diameter from 8 to 18 inches using a two pole configuration. Experimental results and theoretical calculations provide the basis for selection of the critical design parameters. The parameters include a significant magnet to pipe separation that will facilitate the passage of pipeline features. With the basic values of critical components established, the next step is a detailed mechanical design of a pipeline ready inspection system.

  3. North West Shelf pipeline. Part 2 (conclusion). Laying Australia's North West Shelf pipeline

    SciTech Connect (OSTI)

    Seymour, E.V.; Craze, D.J.; Ruinen, W.

    1984-05-14

    Details of the construction of Australia's North West Shelf gas pipeline cover the pipelaying operation, trunkline-to-riser tie-in, posttrenching, backfilling, slugcatcher construction, connection with the shore terminal, and hydrostatic testing.

  4. Al-doped ZnO inverse opal networks as efficient electron collectors in BiVO4 photoanodes for solar

    E-Print Network [OSTI]

    Steiner, Ullrich

    Al-doped ZnO inverse opal networks as efficient electron collectors in BiVO4 photoanodes for solar of photogenerated charge carriers limits the performance of photoelectrodes for solar water splitting. To reduce serves as an electron collector for the BiVO4 film, which suffers from poor electron transport

  5. Opal Creek Forest Preserve Act of 1994. Introduced in the House of Representatives, One Hundred Third Congress, Second Session, August 8, 1994

    SciTech Connect (OSTI)

    1994-12-31

    The legislative text proposes to provide for the establishment and management of the Opal Creek Forest Reserve in Oregon. The purpose of the Act is to protect and preserve the forests and watersheds in the Reserve. And to promote and conduct research regarding old-growth forests and for educators to provide scientifically credible information to the public.

  6. New system pinpoints leaks in ethylene pipeline

    SciTech Connect (OSTI)

    Hamande, A.; Condacse, V.; Modisette, J.

    1995-04-01

    A model-based leak detection, PLDS, developed by Modisette Associates, Inc., Houston has been operating on the Solvay et Cie ethylene pipeline since 1989. The 6-in. pipeline extends from Antwerp to Jemeppe sur Sambre, a distance of 73.5 miles and is buried at a depth of 3 ft. with no insulation. Except for outlets to flares, located every 6 miles for test purposes, there are no injections or deliveries along the pipeline. Also, there are block valves, which are normally open, at each flare location. This paper reviews the design and testing procedures used to determine the system performance. These tests showed that the leak system was fully operational and no false alarms were caused by abrupt changes in inlet/outlet flows of the pipeline. It was confirmed that leaks larger than 2 tonnes/hr. (40 bbl/hr) are quickly detected and accurately located. Also, maximum leak detection sensitivity is 1 tonne/hr. (20 bbl/hr) with a detection time of one hour. Significant operational, configuration, and programming issues also were found during the testing program. Data showed that temperature simulations needed re-examining for improvement since accurate temperature measurements are important. This is especially true for ethylene since its density depends largely on temperature. Another finding showed the averaging period of 4 hrs. was too long and a 1 to 2 hr. interval was better.

  7. Energy Reduction in California Pipeline Operations

    E-Print Network [OSTI]

    The Issue Fluid pipelines operating in California transport gasoline, fuel oil, jet fuel, crude, other: Determine optimal pump selection (electric or natural gas enginedriven) and sequence for specific fluid agent concentration profile based on fluid transported. PIER Program Objectives and Anticipated

  8. Cathodic protection of pipelines in discontinuous permafrost

    SciTech Connect (OSTI)

    Mitchell, C.J.; Wright, M.D.; Waslen, D.W.

    1997-10-01

    There are many unknowns and challenges in providing cathodic protection (CP) for a pipeline located in discontinuous permafrost areas. Preliminary pipe-to-soil data indicates that CP coverage was achieved in these regions without needing local anodes. Work is required to verify whether this conclusion can be extended over the course of an annual freeze-thaw cycle.

  9. Analysis of gas chilling alternatives for Arctic pipelines

    SciTech Connect (OSTI)

    Dvoiris, A.; McMillan, D.K.; Taksa, B.

    1994-12-31

    The operation of buried natural gas pipelines in Arctic regions requires installation of gas chilling facilities at compressor stations. These facilities are required in order to cool compressed pipeline gases to temperatures below that of permanently frozen surrounding soil. If these pipeline gas temperatures are too high, the frozen ground around the pipelines will eventually thaw. This is undesirable for many reasons amongst which are ground settlement and possible catastrophic failure of the pipeline. This paper presents the results of a study which compared several alternative methods of gas chilling for possible application at one of the compressor stations on the proposed new Yamal-Center gas pipeline system in the Russian Arctic. This technical and economic study was performed by Gulf Interstate Engineering (GIE) for GAZPROM, the gas company in Russia that will own and operate this new pipeline system. Geotechnical, climatical and other information provided by GAZPROM, coupled with information developed by GIE, formed the basis for this study.

  10. Determination of alpha_S using hadronic event shape distributions of data taken with the OPAL detector

    E-Print Network [OSTI]

    Schieck, J

    2011-01-01

    The measurement of the strong coupling alpha_S using hadronic event shape distributions measured with the OPAL detector at center-of-mass energies between 91 and 209 GeV is summarized. For this measurement hadronic event shape distributions are compared to theoretical predictions based on next-to-next-to-leading-calculations (NNLO) and NNLO combined with resummed next-to-leading-logarithm calculations (NLLA). The combined result using NNLO calculations is alpha_S(MZ)=0.1201+-0.0008(stat.)+-0.0013(exp.)+-0.0010(had.)+-0.0024(theo.) and the result using NLLO and NLLA calculations is alpha_S(MZ)=0.1189+-0.0008(stat.)+-0.0016(exp.)=-0.0010(had.)+-0.0036(theo.), with both measurements being in agreement with the world average.

  11. A comparative study of inverted-opal titania photonic crystals made from polymer and silica colloidal crystal templates

    SciTech Connect (OSTI)

    Kuai, S.-L.; Truong, V.-V.; Hache, Alain; Hu, X.-F.

    2004-12-01

    Photonic crystals with an inverted-opal structure using polymer and silica colloidal crystal templates were prepared and compared. We show that the behaviors of the template during the removal process and heat treatment are determinant factors on the crystal formation. While both templates result in ordered macroporous structures, the optical quality in each case is quite different. The removal of the polymer template by sintering causes a large shrinkage of the inverted framework and produces a high density of cracks in the sample. With a silica template, sintering actually improves the quality of the inverted structure by enhancing the template's mechanical stability, helping increase the filling fraction, and consolidating the titania framework. The role of the other important factors such as preheating and multiple infiltrations is also investigated.

  12. Creating bio-inspired hierarchical 3D-2D photonic stacks via planar lithography on self-assembled inverse opals

    E-Print Network [OSTI]

    Ian B. Burgess; Joanna Aizenberg; Marko Loncar

    2012-11-29

    Structural hierarchy and complex 3D architecture are characteristics of biological photonic designs that are challenging to reproduce in synthetic materials. Top-down lithography allows for designer patterning of arbitrary shapes, but is largely restricted to planar 2D structures. Self-assembly techniques facilitate easy fabrication of 3D photonic crystals, but controllable defect-integration is difficult. In this paper we combine the advantages of top-down and bottom-up fabrication, developing two techniques to deposit 2D-lithographically-patterned planar layers on top of or in between inverse-opal 3D photonic crystals and creating hierarchical structures that resemble the architecture of the bright green wing scales of the butterfly, Parides sesostris. These fabrication procedures, combining advantages of both top-down and bottom-up fabrication, may prove useful in the development of omnidirectional coloration elements and 3D-2D photonic crystal devices.

  13. Enhancement of second harmonic generation in NaNO{sub 2}-infiltrated opal photonic crystal using structural light focusing

    SciTech Connect (OSTI)

    Zaytsev, Kirill I. Yurchenko, Stanislav O.

    2014-08-04

    Experimental and numerical results for second harmonic generation (SHG) in photonic crystal (PC) based on NaNO{sub 2}-infiltrated opal matrix are presented. SHG is performed in reflection mode; thus, the direction of the SHG maximum is equal to the angle of mirror reflection. The PC was pumped with femtosecond optical pulses at different angles of incidence, allowing the dependence of the SHG efficiency on the location of the fundamental wavelength toward the PC band gap (BG) to be examined. The most efficient SHG was observed when pumping the BG of the PC. To interpret the experimental results, finite-difference time-domain numerical simulations of the light interaction with the PC were conducted. The observed effect of highly efficient SHG is associated with structural light focusing, and, as a consequence, with strong optical field localization within certain near-surface PC regions. Thus, SHG enhancement based on structural light focusing in PC was demonstrated.

  14. Creating bio-inspired hierarchical 3D-2D photonic stacks via planar lithography on self-assembled inverse opals

    E-Print Network [OSTI]

    Burgess, Ian B; Loncar, Marko

    2012-01-01

    Structural hierarchy and complex 3D architecture are characteristics of biological photonic designs that are challenging to reproduce in synthetic materials. Top-down lithography allows for designer patterning of arbitrary shapes, but is largely restricted to planar 2D structures. Self-assembly techniques facilitate easy fabrication of 3D photonic crystals, but controllable defect-integration is difficult. In this paper we combine the advantages of top-down and bottom-up fabrication, developing two techniques to deposit 2D-lithographically-patterned planar layers on top of or in between inverse-opal 3D photonic crystals and creating hierarchical structures that resemble the architecture of the bright green wing scales of the butterfly, Parides sesostris. These fabrication procedures, combining advantages of both top-down and bottom-up fabrication, may prove useful in the development of omnidirectional coloration elements and 3D-2D photonic crystal devices.

  15. Spin alignment of leading vector mesons and polarization of {lambda} baryons in multihadronic Z{sup 0} decays at OPAL

    SciTech Connect (OSTI)

    Kress, Thomas H.

    1998-05-29

    Helicity density-matrix elements have been measured for K*{sup 0},{phi}(1020), D* and B* mesons produced inclusively in hadronic Z{sup 0} decays in the OPAL experiment at LEP. Apart from the B*, all show a preference for the helicity-zero state when the meson carries a large fraction of the available energy. The mechanisms which produce such spin alignment in the non-perturbative hadronization of the primary partons to the vector mesons is so far unexplained. Inclusive {lambda} baryons show significant longitudinal polarization at intermediate and high momentum. This may be related to the primary quark and antiquark polarization and the hadronization mechanism which produces the leading baryons.

  16. Leakage Risk Assessment of CO2 Transportation by Pipeline at the Illinois Basin Decatur Project, Decatur, Illinois

    E-Print Network [OSTI]

    Mazzoldi, A.

    2014-01-01

    begins with a review of pipeline risk assessment includingPipeline Leakage Risk .We have carried out pipeline leakage risk assessment for the

  17. Bench-scale studies on gasification of biomass in the presence of catalysts

    SciTech Connect (OSTI)

    Mudge, L.K.; Baker, E.G.; Brown, M.D.; Wilcox, W.A.

    1987-11-01

    This report summarizes the results of bench-scale studies on the development of catalysts for conversion of biomass to specific gas products. The primary objective of these studies was to define operating conditions that allow long lifetimes for secondary catalysts used in biomass gasification. Nickel-based catalysts that were found to be active for conversion of wood to synthesis gases in previous studies were evaluated. These catalysts remained active indefinitely in laboratory studies but lost activity rapidly when evaluated in a process research unit. Bench-scale equipment was designed and installed to resolve the differences between laboratory and PRU results. Primary catalysts (alkali carbonates) were also evaluated for their effectiveness in improving conversion yields from biomass gasification. 21 refs., 27 figs., 19 tabs.

  18. Steam Reforming, 6-in. Bench-Scale Design and Testing Project -- Technical and Functional Requirements Description

    SciTech Connect (OSTI)

    Losinski, Sylvester John; Marshall, Douglas William

    2002-08-01

    Feasibility studies and technology development work are currently being performed on several processes to treat radioactive liquids and solids currently stored at the Idaho Nuclear Technology and Engineering Center (INTEC), located within the Idaho National Engineering and Environmental Laboratory (INEEL). These studies and development work will be used to select a treatment process for treatment of the radioactive liquids and solids to meet treatment milestones of the Settlement Agreement between the Department of Energy and the State of Idaho. One process under consideration for treating the radioactive liquids and solids, specifically Sodium-Bearing Waste (SBW) and tank heel solids, is fluid bed steam reforming (FBSR). To support both feasibility and development studies a bench-scale FBSR is being designed and constructed. This report presents the technical and functional requirements, experimental objectives, process flow sheets, and equipment specifications for the bench-scale FBSR.

  19. Structural monitoring helps assess deformations in Arctic pipelines

    SciTech Connect (OSTI)

    Nyman, K.J.; Lara, P.F.

    1986-11-10

    Advanced structural monitoring systems can play an important role in the evaluation of arctic pipeline distortions along the alignment. These systems can influence pipeline design requirements, reduce capital costs, and improve operating reliability. Differential soil movements resulting from terrain instabilities are the main features which threaten a pipeline's structural integrity and affect the design of buried pipeline systems in the Arctic. Economic, aesthetic, and safety concerns make conventional buried construction an optimum design choice for an arctic crude-oil or gas-pipeline transportation system. However, variable frozen and thawed soil conditions underlying the pipeline along a discontinuous permafrost corridor pose a challenge to the design and operation of such systems. Crude-oil pipelines which must operate at elevated temperatures can be installed in unfrozen soils or in permafrost soils where initially frozen segments will exhibit limited settlement under the thawed conditions imposed by pipeline construction and operation. Ice-rich portions of the frozen alignment may have an unacceptable settlement potential for a warm buried pipeline. In contrast, natural-gas pipelines can be operated cold to increase throughput capability and to prevent the problems associated with thawing permafrost.

  20. Data acquisition system time measurement capabilities using WorkBench[trademark] software

    SciTech Connect (OSTI)

    Coutts, D.A.

    1992-04-01

    There is an increasing interest in the ability to measure transient behavior in the Heat Transfer Laboratory (HTL). To accomplish this the timing system behavior for the Data Acquisition Systems (DAS) must be evaluated. This report discusses the evaluation of a DAS timing system using WorkBench[trademark] Software in a Macintosh II environment. It also describes a method which can be successfully used to calibrate the timing system associated with the DAS.

  1. Data acquisition system time measurement capabilities using WorkBench{trademark} software

    SciTech Connect (OSTI)

    Coutts, D.A.

    1992-04-01

    There is an increasing interest in the ability to measure transient behavior in the Heat Transfer Laboratory (HTL). To accomplish this the timing system behavior for the Data Acquisition Systems (DAS) must be evaluated. This report discusses the evaluation of a DAS timing system using WorkBench{trademark} Software in a Macintosh II environment. It also describes a method which can be successfully used to calibrate the timing system associated with the DAS.

  2. A versatile PMT test bench and its application in the DAMPE-PSD

    E-Print Network [OSTI]

    Zhou, Yong; Yu, Yuhong; Zhang, Yongjie; Fang, Fang; Chen, Junling; Hu, Bitao

    2015-01-01

    A versatile test bench system, dedicated for massive PMT characterization, is developed at the Institute of Modern Physics, Chinese Academy of Sciences. It can perform many test contents with large capacity and high level of automation, and the migration from one testing configuration to another is lightweight and time-saving. This system has been used in the construction of the Plastic Scintillator Detector of DArk Matter Particle Explorer already, and a total of 570 Hamamatsu R4443 tubes have been tested successfully.

  3. Direct liquefaction proof-of-concept program: Bench Run 05 (227-97). Final report

    SciTech Connect (OSTI)

    Comolli, A.G.; Pradhan, V.R.; Lee, T.L.K.; Karolkiewicz, W.F.; Popper, G.

    1997-04-01

    This report presents the results Bench Run PB-05, conducted under the DOE Proof of Concept - Bench Option Program in direct coal liquefaction at Hydrocarbon Technologies, Inc. in Lawrenceville, New Jersey. Bench Run PB-05 was the fifth of the nine runs planned in the POC Bench Option Contract between the U.S. DOE and included the evaluation of the effect of using dispersed slurry catalyst in direct liquefaction of a high volatile bituminous Illinois No. 6 coal and in combined coprocessing of coal with organic wastes, such as heavy petroleum resid, MSW plastics, and auto-shredder residue. PB-05 employed a two-stage, back-mixed, slurry reactor system with an interstage V/L separator and an in-line fixed-bed hydrotreater. Coprocessing of waste plastics with Illinois No. 6 coal did not result in the improvement observed earlier with a subbituminous coal. In particular, decreases in light gas yield and hydrogen consumption were not observed with Illinois No. 6 coal as they were with Black Thunder Mine coal. The higher thermal severity during PB-05 is a possible reason for this discrepancy, plastics being more sensitive to temperatures (cracking) than either coal or heavy resid. The ASR material was poorer than MSW plastics in terms of increasing conversions and yields. HTI`s new dispersed catalyst formulation, containing phosphorus-promoted iron gel, was highly effective for the direct liquefaction of Illinois No. 6 coal under the reaction conditions employed; over 95% coal conversion was obtained, along with over 85% residuum conversion and over 73% distillate yields.

  4. The Application of a Genetic Algorithm to Estimate Material Properties for Fire Modeling from Bench-Scale Fire Test Data

    E-Print Network [OSTI]

    Lautenberger, Chris; Rein, Guillermo; Fernandez-Pello, Carlos

    A methodology based on an automated optimization technique that uses a genetic algorithm (GA) is developed to estimate the material properties needed for CFD-based fire growth modeling from bench-scale fire test data. ...

  5. International Journal of Parallel Programming submission February 3, 1997 Analyzing Asynchronous Pipeline Schedules

    E-Print Network [OSTI]

    Ferrante, Jeanne

    Pipeline Schedules Val Donaldson and Jeanne Ferrante Computer Science and Engineering Department University pipelining is a form of parallelism which may be used in distributed memory systems. An asynchronous pipeline of a pipeline schedule is needed to determine if pipelining is appropriate for a loop, and to compare

  6. A NegativeOverhead, SelfTimed Pipeline Brian D. Winters and Mark R. Greenstreet

    E-Print Network [OSTI]

    Greenstreet, Mark

    A NegativeOverhead, SelfTimed Pipeline Brian D. Winters and Mark R. Greenstreet Department a novel variation of wave pipelining that we call ``surfing.'' In previous wave pipelined designs, timing variation of wave pipelin ing called ``surfing.'' In surfing pipelines, a timing pulse is propagated along

  7. A Negative-Overhead, Self-Timed Pipeline Brian D. Winters and Mark R. Greenstreet

    E-Print Network [OSTI]

    Greenstreet, Mark

    A Negative-Overhead, Self-Timed Pipeline Brian D. Winters and Mark R. Greenstreet Department a novel variation of wave pipelining that we call "surfing." In previous wave pipelined designs, timing variation of wave pipelin- ing called "surfing." In surfing pipelines, a timing pulse is propagated along

  8. Frank Masci Page 1 06/17/2003 Initial Pipeline Assignment Procedure

    E-Print Network [OSTI]

    Masci, Frank

    Frank Masci Page 1 06/17/2003 Initial Pipeline Assignment Procedure (The SIRTF "Pipeline Picker") F and request (AOR, IER or SER) is assigned a pipeline thread to initiate processing. It was developed by J, the "pipeline picker" routine is triggered to uniquely determine an appropriate pipeline script-ID (pl

  9. Optimized Sampling Frequencies for Weld Reliability Assessments of Long Pipeline Segments

    E-Print Network [OSTI]

    Kreinovich, Vladik

    Optimized Sampling Frequencies for Weld Reliability Assessments of Long Pipeline Segments Cesar J that design an optimal testing strategy for long pipeline segments. I. INTRODUCTION Inspecting Pipelines buried pipelines. Highpressure corrosive substances transported within a pipeline and often severe soil

  10. Optimized Sampling Frequencies for Weld Reliability Assessments of Long Pipeline Segments

    E-Print Network [OSTI]

    Kreinovich, Vladik

    Optimized Sampling Frequencies for Weld Reliability Assessments of Long Pipeline Segments Cesar J that design an optimal testing strategy for long pipeline segments. I. INTRODUCTION Inspecting Pipelines buried pipelines. High-pressure corrosive substances transported within a pipeline and often severe soil

  11. Crossing Active Faults on the Sakhalin II Onshore Pipeline Route: Pipeline Design and Risk Analysis

    SciTech Connect (OSTI)

    Mattiozzi, Pierpaolo; Strom, Alexander

    2008-07-08

    Twin oil (20 and 24 inch) and gas (20 and 48 inch) pipeline systems stretching 800 km are being constructed to connect offshore hydrocarbon deposits from the Sakhalin II concession in the North to an LNG plant and oil export terminal in the South of Sakhalin island. The onshore pipeline route follows a regional fault zone and crosses individual active faults at 19 locations. Sakhalin Energy, Design and Construction companies took significant care to ensure the integrity of the pipelines, should large seismic induced ground movements occur during the Operational life of the facilities. Complex investigations including the identification of the active faults, their precise location, their particular displacement values and assessment of the fault kinematics were carried out to provide input data for unique design solutions. Lateral and reverse offset displacements of 5.5 and 4.5 m respectively were determined as the single-event values for the design level earthquake (DLE) - the 1000-year return period event. Within the constraints of a pipeline route largely fixed, the underground pipeline fault crossing design was developed to define the optimum routing which would minimize stresses and strain using linepipe materials which had been ordered prior to the completion of detailed design, and to specify requirements for pipe trenching shape, materials, drainage system, etc. Detailed Design was performed with due regard to actual topography and to avoid the possibility of the trenches freezing in winter, the implementation of specific drainage solutions and thermal protection measures.

  12. The e-MERLIN Data Reduction Pipeline

    E-Print Network [OSTI]

    Argo, Megan

    2015-01-01

    Written in Python and utilising ParselTongue to interface with the Astronomical Image Processing System (AIPS), the e-MERLIN data reduction pipeline is intended to automate the procedures required in processing and calibrating radio astronomy data from the e-MERLIN correlator. Driven by a plain text file of input parameters, the pipeline is modular and can be run in stages by the user, depending on requirements. The software includes options to load raw data, average in time and/or frequency, flag known sources of interference, flag more comprehensively with SERPent, carry out some or all of the calibration procedures including self-calibration), and image in either normal or wide-field mode. It also optionally produces a number of useful diagnostic plots at various stages so that the quality of the data can be assessed. The software is available for download from the e-MERLIN website or via Github.

  13. Pipelining heavy crude oil requires special pumps

    SciTech Connect (OSTI)

    Brennan, J.R. [Imo Industries, Singapore (Singapore)

    1995-10-01

    This paper reviews the use of rotary screw pumps installed at Guatemala`s Xan oil field to help pipeline heavy crudes to their processing facilities. It reviews the special design characteristics and specifications for each of the three pumps. It provides information on the capacities and the materials used in making the pumps. It provides information on cooling systems and on the engines used to power the pumps.

  14. Natural Gas Pipeline Network: Changing and Growing

    Reports and Publications (EIA)

    1996-01-01

    This chapter focuses upon the capabilities of the national natural gas pipeline network, examining how it has expanded during this decade and how it may expand further over the coming years. It also looks at some of the costs of this expansion, including the environmental costs which may be extensive. Changes in the network as a result of recent regional market shifts are also discussed.

  15. Pipeline safety joint eliminates need for divers

    SciTech Connect (OSTI)

    Not Available

    1983-04-01

    The Sea-Hook coupling is a diverless pressure-compensated pipeline safety joint designed to protect the pipe from damage by excessive physical loads. The coupling provides a predetermined weak point in the line that will cause a controlled separation when the line is exposed to strong wave action or dragging anchors. Moreover, it offers prepressurized remote lockout protection, metal seal integrity, no hand-up separation, enclosed bolting, optimal manual lockout, and no springs or shear rings.

  16. Liquefaction and Pipeline Costs | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCED MANUFACTURING OFFICE INDUSTRIALU.S.Leadership on CleanUp GeorgiaLinacLiquefaction and Pipeline

  17. Industry Research for Pipeline Systems Panel

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCED MANUFACTURING OFFICE INDUSTRIAL TECHNICAL ASSISTANCE Supports the deployment ofIndustryPipeline

  18. Drag reduction in coal log pipelines

    SciTech Connect (OSTI)

    Marrero, T.R.; Liu, H.

    1996-12-31

    It is well-known that solutions of dissolved long-chain macromolecules produce lower friction or drag losses than with the solvent alone. In coal log pipeline (CLP), water is the conveying medium. Synthetic polymers such as poly(ethylene oxide) have been dissolved in water and tested for their extent of drag reduction as a function of concentration and other variables. Lab-scale experimental results for CLP indicate substantial drag reduction at low concentration levels of polymer. But, the macromolecules exhibit degradation under mechanical shear stresses. The large molecules break into smaller units. This degradation effect causes a loss of drag reduction. However, high levels of drag reduction can be maintained as follows: (1) by injecting polymer into the CLP at several locations along the pipeline, (2) by injecting polymer of different particle sizes, (3) by using more robust types of polymers, or (4) by using polymer-fiber mixtures. This report presents the value of drag-reducing agents in terms of pumping power net cost savings. In addition, this report outlines the environmental impact of drag reduction polymers, and end-of-pipeline water treatment processes. For an operating CLP, hundreds of miles in length, the use of poly(ethylene oxide) as a drag reducing agent provides significant pumping power cost savings at a minimal materials cost.

  19. CFPL installs products pipeline with directional drilling

    SciTech Connect (OSTI)

    1996-01-01

    Central Florida Pipeline Company (CFPL), a subsidiary of GATX Terminals Corp., Tampa, FL, has used directional drilling under seven water bodies in Hillsborough, Polk and Osceola Counties in constructing its new pipeline from Tampa to Orlando. Primary reason for using directional drilling is to protect the environment by minimizing water turbidity while the 16-inch diameter, 109-mile refined petroleum products pipeline is being installed. Total cost of the project is pegged at $68.5 million. Directional drilling enabled the pipe to be placed about 20 feet below the bottom of: The Alafia River in Riverview with 999 feet drilled; Port Sutton Channel near the Port of Tampa with 2,756 feet drilled; Reedy Creek Swamp at the intersection of Interstate 4 and Highway 192 which had 1,111 feet drilled; Wetland {number_sign}70 southwest of Lake Wales with 1,575 feet drilled; Peace River south of Bartow had 2,470 feet drilled; Bonnet Creek west of Kissimmee had 693 feet drilled. Shingle Creek near the borders of Osceola and Orange Counties with 1,700 feet drilled. This paper reviews the design plans for construction and the emergency response plans should a rupture occur in the line.

  20. U.S., Canada pipeline work shows gain in 1994

    SciTech Connect (OSTI)

    Watts, J.

    1994-01-01

    Pipeline construction activity in the US and Canada is expected to be down slightly during 1994 from 1993 mileage, even though natural gas pipeline work remains steady on both sides of the border. Pipeline and Gas Journal and Pipeline and Utilities Construction estimate that a total of 3.638 miles of new gas, crude oil and refined products pipeline will be installed during 1994 in the US, down from a total of 4.278 miles built in 1993. Canadian 1994 work remains essentially unchanged in 1994, with 1,094 new miles compared to 1,091 miles in 1993. This paper reviews the proposed construction by region and company. It includes information on mileage, type pipeline, and estimated completion date.

  1. World`s developing regions provide spark for pipeline construction

    SciTech Connect (OSTI)

    Koen, A.D.; True, W.R.

    1996-02-05

    This paper reviews the proposed construction of oil and gas pipelines which are underway or proposed to be started in 1996. It breaks down the projects by region of the world, type of product to be carried, and diameter of pipeline. It also provides mileage for each category of pipeline. Major projects in each region are more thoroughly discussed giving details on construction expenditures, construction problems, and political issues.

  2. Hydrogen pipeline compressors annual progress report.

    SciTech Connect (OSTI)

    Fenske, G. R.; Erck, R. A.

    2011-07-15

    The objectives are: (1) develop advanced materials and coatings for hydrogen pipeline compressors; (2) achieve greater reliability, greater efficiency, and lower capital in vestment and maintenance costs in hydrogen pipeline compressors; and (3) research existing and novel hydrogen compression technologies that can improve reliability, eliminate contamination, and reduce cost. Compressors are critical components used in the production and delivery of hydrogen. Current reciprocating compressors used for pipeline delivery of hydrogen are costly, are subject to excessive wear, have poor reliability, and often require the use of lubricants that can contaminate the hydrogen (used in fuel cells). Duplicate compressors may be required to assure availability. The primary objective of this project is to identify, and develop as required, advanced materials and coatings that can achieve the friction, wear, and reliability requirements for dynamically loaded components (seal and bearings) in high-temperature, high-pressure hydrogen environments prototypical of pipeline and forecourt compressor systems. The DOE Strategic Directions for Hydrogen Delivery Workshop identified critical needs in the development of advanced hydrogen compressors - notably, the need to minimize moving parts and to address wear through new designs (centrifugal, linear, guided rotor, and electrochemical) and improved compressor materials. The DOE is supporting several compressor design studies on hydrogen pipeline compression specifically addressing oil-free designs that demonstrate compression in the 0-500 psig to 800-1200 psig range with significant improvements in efficiency, contamination, and reliability/durability. One of the designs by Mohawk Innovative Technologies Inc. (MiTi{reg_sign}) involves using oil-free foil bearings and seals in a centrifual compressor, and MiTi{reg_sign} identified the development of bearings, seals, and oil-free tribological coatings as crucial to the successful development of an advanced compressor. MiTi{reg_sign} and ANL have developed potential coatings for these rigorous applications; however, the performance of these coatings (as well as the nickel-alloy substrates) in high-temperature, high-speed hydrogen environments is unknown at this point.

  3. Refiners react to changes in the pipeline infrastructure

    SciTech Connect (OSTI)

    Giles, K.A.

    1997-06-01

    Petroleum pipelines have long been a critical component in the distribution of crude and refined products in the U.S. Pipelines are typically the most cost efficient mode of transportation for reasonably consistent flow rates. For obvious reasons, inland refineries and consumers are much more dependent on petroleum pipelines to provide supplies of crude and refined products than refineries and consumers located on the coasts. Significant changes in U.S. distribution patterns for crude and refined products are reshaping the pipeline infrastructure and presenting challenges and opportunities for domestic refiners. These changes are discussed.

  4. ,"Rhode Island Natural Gas Pipeline and Distribution Use Price...

    U.S. Energy Information Administration (EIA) Indexed Site

    ies","Frequency","Latest Data for" ,"Data 1","Rhode Island Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet)",1,"Annual",2005 ,"Release Date:","9...

  5. ,"New Jersey Natural Gas Pipeline and Distribution Use Price...

    U.S. Energy Information Administration (EIA) Indexed Site

    eries","Frequency","Latest Data for" ,"Data 1","New Jersey Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet)",1,"Annual",2005 ,"Release Date:","9...

  6. ,"North Carolina Natural Gas Pipeline and Distribution Use Price...

    U.S. Energy Information Administration (EIA) Indexed Site

    s","Frequency","Latest Data for" ,"Data 1","North Carolina Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet)",1,"Annual",2005 ,"Release Date:","9...

  7. ,"North Dakota Natural Gas Pipeline and Distribution Use Price...

    U.S. Energy Information Administration (EIA) Indexed Site

    ies","Frequency","Latest Data for" ,"Data 1","North Dakota Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet)",1,"Annual",2005 ,"Release Date:","9...

  8. ,"New Hampshire Natural Gas Pipeline and Distribution Use Price...

    U.S. Energy Information Administration (EIA) Indexed Site

    es","Frequency","Latest Data for" ,"Data 1","New Hampshire Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet)",1,"Annual",2005 ,"Release Date:","9...

  9. ,"New Mexico Natural Gas Pipeline and Distribution Use Price...

    U.S. Energy Information Administration (EIA) Indexed Site

    eries","Frequency","Latest Data for" ,"Data 1","New Mexico Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet)",1,"Annual",2005 ,"Release Date:","9...

  10. ,"New York Natural Gas Pipeline and Distribution Use Price (Dollars...

    U.S. Energy Information Administration (EIA) Indexed Site

    Series","Frequency","Latest Data for" ,"Data 1","New York Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet)",1,"Annual",2005 ,"Release Date:","9...

  11. EIA - Natural Gas Pipeline Network - Salt Cavern Storage Reservoir...

    U.S. Energy Information Administration (EIA) Indexed Site

    Salt Cavern Storage Reservoir Configuration About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 20072008 with selected updates Salt Cavern...

  12. DEX: Increasing the Capability of Scientific Data Analysis Pipelines...

    Office of Scientific and Technical Information (OSTI)

    DEX: Increasing the Capability of Scientific Data Analysis Pipelines by Using Efficient Bitmap Indices to Accelerate Scientific Visualization Citation Details In-Document Search...

  13. Visualization and analysis of large medical image collections using pipelines

    E-Print Network [OSTI]

    Sridharan, Ramesh

    2015-01-01

    Medical image analysis often requires developing elaborate algorithms that are implemented as computational pipelines. A growing number of large medical imaging studies necessitate development of robust and flexible ...

  14. EIA - Analysis of Natural Gas Imports/Exports & Pipelines

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    trends, offshore production shut-ins caused by infrastructure problems and hurricanes, imports and exports of pipeline and liquefied natural gas, and the above-average...

  15. ,"Alamo, TX Natural Gas Pipeline Imports From Mexico (MMcf)"

    U.S. Energy Information Administration (EIA) Indexed Site

    Alamo, TX Natural Gas Pipeline Imports From Mexico (MMcf)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data...

  16. Blending Hydrogen into Natural Gas Pipeline Networks: A Review...

    Broader source: Energy.gov (indexed) [DOE]

    extend from the Rocky Mountain region. This study assesses the potential to deliver hydrogen through the existing natural gas pipeline network as a hydrogen and natural gas...

  17. ,"Total Crude Oil and Petroleum Products Net Receipts by Pipeline...

    U.S. Energy Information Administration (EIA) Indexed Site

    Net Receipts by Pipeline, Tanker, Barge and Rail between PAD Districts" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of...

  18. EIA - Natural Gas Pipeline Network - Depleted Reservoir Storage...

    Gasoline and Diesel Fuel Update (EIA)

    Depleted Reservoir Storage Configuration About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 20072008 with selected updates Depleted Production...

  19. Hydrogen Embrittlement of Pipeline Steels: Causes and Remediation...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Collaboration to Enable a Carbon-Neutral Energy Economy Hydrogen Embrittlement of Pipeline Steels: Causes and Remediation Hydrogen permeability and Integrity of hydrogen...

  20. EIA - Natural Gas Pipeline Network - Aquifer Storage Reservoir...

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    Aquifer Storage Reservoir Configuration About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 20072008 with selected updates Aquifer Underground...

  1. Enter the Post-Doc: The Untapped Sourcing Pipeline

    SciTech Connect (OSTI)

    Boscow, Ryan B.

    2011-07-30

    This article addresses the potential formulation and utilization of an industry-based Post-Doc program in order to create workforce candidate pipelines with targeted universities.

  2. ,"Detroit, MI Natural Gas Pipeline Imports From Canada (MMcf...

    U.S. Energy Information Administration (EIA) Indexed Site

    ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Detroit, MI Natural Gas Pipeline Imports From Canada (MMcf)",1,"Annual",2014 ,"Release...

  3. Panel 2, Hydrogen Delivery in the Natural Gas Pipeline Network

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    in the Natural Gas Pipeline Network DOE'S HYDROGEN ENERGY STORAGE FOR GRID AND TRANSPORTATION SERVICES WORKSHOP Sacramento, CA May 14, 2014 Brian Weeks Gas Technology Institute 2 2...

  4. Assessment of the Adequacy of Natural Gas Pipeline Capacity in...

    Office of Environmental Management (EM)

    changes to the Northeast gas market. Chief among these has been the rapid growth of gas production from the Marcellus Shale in Pennsylvania and new pipeline and processing...

  5. EIS-0517: Port Arthur Liquefaction Project and Port Arthur Pipeline...

    Broader source: Energy.gov (indexed) [DOE]

    natural gas marine terminal along the Sabine-Neches ship channel (Jefferson County, Texas), about 35 miles of new pipeline, and associated facilities. DOE, Office of Fossil...

  6. Piko: A Framework for Authoring Programmable Graphics Pipelines

    E-Print Network [OSTI]

    Patney, Anjul; Tzeng, Stanley; Seitz, Kerry A. Jr.; Owens, John D.

    2015-01-01

    and a manycore GPU (NVIDIA Tesla K40c GPU). We rendered ourran our Piko pipelines on an NVIDIA Tesla K40c GPU. Triangle

  7. BioDelivery Sciences International, Inc. - Product Pipeline Review...

    Open Energy Info (EERE)

    BioDelivery Sciences International, Inc. - Product Pipeline Review - 2014 By Radiant Insights Home > Groups > Future of Condition Monitoring for Wind Turbines Marketresearchri's...

  8. BioInvent International AB - Product Pipeline Review - 2014 According...

    Open Energy Info (EERE)

    BioInvent International AB - Product Pipeline Review - 2014 According To Radiant Insights Home > Groups > Future of Condition Monitoring for Wind Turbines Marketresearchri's...

  9. VoICE: A semi-automated pipeline for standardizing vocal analysis across models

    E-Print Network [OSTI]

    Burkett, ZD; Day, NF; Peagarikano, O; Geschwind, DH; White, SA

    2015-01-01

    al. VoICE: A semi-automated pipeline for standardizing vocalVoICE: A semi-automated pipeline for standardizing vocalwe designed an analysis pipeline into which any type of

  10. Flexible Pipelining Design for Recursive Variable Expansion Zubair Nawaz, Thomas Marconi, Koen Bertels

    E-Print Network [OSTI]

    Bertels, Koen

    Flexible Pipelining Design for Recursive Variable Expansion Zubair Nawaz, Thomas Marconi, Koen area by doing loops parallelization with extensive use of pipelining. This paper presents an automated flexible pipeline design algorithm for our unique acceleration technique called Recursive Variable

  11. Strategic Pipeline and Recruitment Fund: Practical Tools for Chairs, Faculty, and Deans (10/14)

    E-Print Network [OSTI]

    Gasch, Audrey P.

    Strategic Pipeline and Recruitment Fund: Practical Tools for Chairs, Faculty, and Deans (10/14) Goal: Enhance the University's capacity for pipeline development and competitive recruitment robust pipeline and recruitment capacity. It complements, but does not duplicate, SHI programs

  12. Tool Path Planning Generation For Finish Machining of Freeform Surfaces in the Cybercut Process Planning Pipeline

    E-Print Network [OSTI]

    Wright, Paul K; Dornfeld, David; Sundararajan, V.; Misra, Debananda

    2007-01-01

    CYBERCUT PROCESS PLANNING PIPELINE Paul K. Wright, David A.describes part of a "Pipeline of De- sign and Manufacturingversus surface finish. 2.5D PIPELINE AND 3D SURFACES Figure

  13. MetAMOS: a modular and open source metagenomic assembly and analysis pipeline

    E-Print Network [OSTI]

    2013-01-01

    assembly and analysis pipeline. Genome Biology 2013 14:R2.assembly and analysis pipeline Todd J Treangen 1,2 , Sergeyassembly and analysis pipeline. MetAMOS represents an

  14. Black Radicals Make for Bad Citizens: Undoing the Myth of the School to Prison Pipeline

    E-Print Network [OSTI]

    Sojoyner, Damien M

    2013-01-01

    December 13). Prison pipeline hits Black students harder,http://politic365.com/2012/12/13/prison-pipeline-hits-black-The school-to-prison pipeline: Structuring legal reform. New

  15. Analysis of oil-pipeline distribution of multiple products subject to delivery time-windows

    E-Print Network [OSTI]

    Jittamai, Phongchai

    2006-04-12

    This dissertation defines the operational problems of, and develops solution methodologies for, a distribution of multiple products into oil pipeline subject to delivery time-windows constraints. A multiple-product oil pipeline is a pipeline system...

  16. Virtual Pipeline System Testbed to Optimize the U.S. Natural Gas Transmission Pipeline System

    SciTech Connect (OSTI)

    Kirby S. Chapman; Prakash Krishniswami; Virg Wallentine; Mohammed Abbaspour; Revathi Ranganathan; Ravi Addanki; Jeet Sengupta; Liubo Chen

    2005-06-01

    The goal of this project is to develop a Virtual Pipeline System Testbed (VPST) for natural gas transmission. This study uses a fully implicit finite difference method to analyze transient, nonisothermal compressible gas flow through a gas pipeline system. The inertia term of the momentum equation is included in the analysis. The testbed simulate compressor stations, the pipe that connects these compressor stations, the supply sources, and the end-user demand markets. The compressor station is described by identifying the make, model, and number of engines, gas turbines, and compressors. System operators and engineers can analyze the impact of system changes on the dynamic deliverability of gas and on the environment.

  17. Comparing Existing Pipeline Networks with the Potential Scale of Future U.S. CO2 Pipeline Networks

    SciTech Connect (OSTI)

    Dooley, James J.; Dahowski, Robert T.; Davidson, Casie L.

    2008-02-29

    There is growing interest regarding the potential size of a future U.S. dedicated CO2 pipeline infrastructure if carbon dioxide capture and storage (CCS) technologies are commercially deployed on a large scale. In trying to understand the potential scale of a future national CO2 pipeline network, comparisons are often made to the existing pipeline networks used to deliver natural gas and liquid hydrocarbons to markets within the U.S. This paper assesses the potential scale of the CO2 pipeline system needed under two hypothetical climate policies and compares this to the extant U.S. pipeline infrastructures used to deliver CO2 for enhanced oil recovery (EOR), and to move natural gas and liquid hydrocarbons from areas of production and importation to markets. The data presented here suggest that the need to increase the size of the existing dedicated CO2 pipeline system should not be seen as a significant obstacle for the commercial deployment of CCS technologies.

  18. The Oil Network in US:The Oil Network in US: A Closer Look at PipelinesA Closer Look at Pipelines

    E-Print Network [OSTI]

    Nagurney, Anna

    The Oil Network in US:The Oil Network in US: A Closer Look at PipelinesA Closer Look at Pipelines of Oil Network in USHistory of Oil Network in US Origin of pipelines:Origin of pipelines: WWII: Relied of transportationtransportation Need for a complex network:Need for a complex network: Move the raw materials (crude oils), from

  19. Petrographic description of calcite/opal samples collected on field trip of December 5-9, 1992. Special report No. 7

    SciTech Connect (OSTI)

    Hill, C.A.; Schluter, C.M.

    1993-06-01

    This study is part of the research program of the Yucca Mountain Project intended to provide the State of Nevada with a detailed analysis and assessment of the water-deposited minerals of Yucca Mountain and adjacent regions. Forty-three separate stops were made and 203 samples were collected during the five days of the field trip. This report describes petrographic observations made on the calcite/opal samples.

  20. Pipeline and Pressure Vessel R&D under the Hydrogen Regional...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Pipeline and Pressure Vessel R&D under the Hydrogen Regional Infrastructure Program In Pennsylvania Pipeline and Pressure Vessel R&D under the Hydrogen Regional Infrastructure...

  1. Panel: The Intersections of the IDEA and the School-to-Prison Pipeline (Audio file)

    E-Print Network [OSTI]

    Waterstone, Julie; Cannon, Yael; Rivera, Anna; Dudakia, Kunti

    2013-01-01

    known as the School-to-Prison Pipeline-occurs, and willlaws in the School-to-Prison Pipeline discourse will help

  2. Panel: The Intersections of the IDEA and the School-to-Prison Pipeline (Audio file)

    E-Print Network [OSTI]

    Waterstone, Julie; Cannon, Yael; Rivera, Anna; Dudakia, Kunti

    2013-01-01

    as the School-to-Prison Pipeline-occurs, and will explorein the School-to-Prison Pipeline discourse will help the

  3. Supersonic Air Jets Preserve Tree Roots in Underground Pipeline Installation1

    E-Print Network [OSTI]

    Supersonic Air Jets Preserve Tree Roots in Underground Pipeline Installation1 Rob Gross 2 trenching operations for pipeline installation. Although mechanical soil excavation using heavy equipment

  4. damidseq pipeline: an automated pipeline for processing DamID sequencing datasets

    E-Print Network [OSTI]

    Marshall, Owen J.; Brand, Andrea H.

    2015-06-25

    of DamID-seq datasets with normalisation based on read-counts alone can lead to high background and the loss of bound signal. DamID-seq thus presents novel challenges in terms of normalisation and background minimisation. We describe here damidseq_pipeline...

  5. Materials Solutions for Hydrogen Delivery in Pipelines

    SciTech Connect (OSTI)

    Ningileri, Shridas T.; Boggess, Todd A; Stalheim, Douglas

    2013-01-02

    The main objective of the study is as follows: Identify steel compositions/microstructures suitable for construction of new pipeline infrastructure and evaluate the potential use of the existing steel pipeline infrastructure in high pressure gaseous hydrogen applications. The microstructures of four pipeline steels were characterized and tensile testing was conducted in gaseous hydrogen and helium at pressures of 5.5 MPa (800 psi), 11 MPa (1600 psi) and 20.7 MPa (3000 psi). Based on reduction of area, two of the four steels that performed the best across the pressure range were selected for evaluation of fracture and fatigue performance in gaseous hydrogen at 5.5 MPa (800 psi) and 20.7 MPa (3000 psi). The basic format for this phase of the study is as follows: Microstructural characterization of volume fraction of phases in each alloy; Tensile testing of all four alloys in He and H{sub 2} at 5.5 MPa (800 psi), 11 MPa (1600 psi), and 20.7 MPa (3000 psi). RA performance was used to choose the two best performers for further mechanical property evaluation; Fracture testing (ASTM E1820) of two best tensile test performers in H{sub 2} at 5.5 MPa (800 psi) and 20.7 MPa (3000 psi); Fatigue testing (ASTM E647) of two best tensile test performers in H2 at 5.5 MPa (800 psi) and 20.7 MPa (3000 psi) with frequency =1.0 Hz and R-ratio=0.5 and 0.1.

  6. Pipeline bottoming cycle study. Final report

    SciTech Connect (OSTI)

    Not Available

    1980-06-01

    The technical and economic feasibility of applying bottoming cycles to the prime movers that drive the compressors of natural gas pipelines was studied. These bottoming cycles convert some of the waste heat from the exhaust gas of the prime movers into shaft power and conserve gas. Three typical compressor station sites were selected, each on a different pipeline. Although the prime movers were different, they were similar enough in exhaust gas flow rate and temperature that a single bottoming cycle system could be designed, with some modifications, for all three sites. Preliminary design included selection of the bottoming cycle working fluid, optimization of the cycle, and design of the components, such as turbine, vapor generator and condensers. Installation drawings were made and hardware and installation costs were estimated. The results of the economic assessment of retrofitting bottoming cycle systems on the three selected sites indicated that profitability was strongly dependent upon the site-specific installation costs, how the energy was used and the yearly utilization of the apparatus. The study indicated that the bottoming cycles are a competitive investment alternative for certain applications for the pipeline industry. Bottoming cycles are technically feasible. It was concluded that proper design and operating practices would reduce the environmental and safety hazards to acceptable levels. The amount of gas that could be saved through the year 2000 by the adoption of bottoming cycles for two different supply projections was estimated as from 0.296 trillion ft/sup 3/ for a low supply projection to 0.734 trillion ft/sup 3/ for a high supply projection. The potential market for bottoming cycle equipment for the two supply projections varied from 170 to 500 units of varying size. Finally, a demonstration program plan was developed.

  7. The QUEST Data Processing Software Pipeline

    E-Print Network [OSTI]

    Peter Andrews; Charles Baltay; Anne Bauer; Nancy Ellman; Jonathan Jerke; Rochelle Lauer; David Rabinowitz; Julia Silge

    2007-03-16

    A program that we call the QUEST Data Processing Software Pipeline has been written to process the large volumes of data produced by the QUEST camera on the Samuel Oschin Schmidt Telescope at the Palomar Observatory. The program carries out both aperture and PSF photometry, combines data from different repeated observations of the same portion of sky, and produces a Master Object Catalog. A rough calibration of the data is carried out. This program, as well as the calibration procedures and quality checks on the output are described.

  8. Cathodic protection of pipelines in discontinuous permafrost

    SciTech Connect (OSTI)

    Mitchell, C.J.; Wright, M.D.; Waslen, D.W.

    1997-08-01

    This paper discusses the challenges in providing cathodic protection for a pipeline located in an area with discontinuous permafrost. Specific challenges included: unknown time for the permafrost to melt out, unpredictable current distribution characteristics and wet, inaccessible terrain. Based on preliminary pipe-to-soil data, it appears that cathodic protection coverage was achieved in discontinuous permafrost regions without the need of local anodes. Future work is required to verify whether this conclusion can be extended over the course of an annual freeze-thaw cycle.

  9. EIA - Natural Gas Pipeline System - Central Region

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969Central Region About U.S. Natural Gas Pipelines - Transporting

  10. EIA - Natural Gas Pipeline System - Midwest Region

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969Central Region About U.S. Natural Gas Pipelines -Midwest Region

  11. EIA - Natural Gas Pipeline System - Northeast Region

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969Central Region About U.S. Natural Gas Pipelines -Midwest

  12. EIA - Natural Gas Pipeline System - Southeast Region

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969Central Region About U.S. Natural Gas Pipelines

  13. EIA - Natural Gas Pipeline System - Southwest Region

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969Central Region About U.S. Natural Gas PipelinesSouthwest Region

  14. EIA - Natural Gas Pipeline System - Western Region

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969Central Region About U.S. Natural Gas PipelinesSouthwest

  15. DEMONSTRATING SLOW GROWTH RATES IN OPAL FROM Y.M.,NV, USING MICRODIGESTION AND ION-PROBE URANIUM-SERIES DATING

    SciTech Connect (OSTI)

    J. PACES; L. NEYMARK; H. PERSING; J. WOODEN

    2000-07-25

    Thinly laminated (<0.01 mm) opal sheets and globules associated with calcite in fractures and cavities in the unsaturated zone at Yucca Mountain, Nevada, have U concentrations of 50 to 300 ppm. Previous uranium-series thermal ionization mass spectrometry (TIMS) analyses of 0.2- to 1-mm-thick subsamples resulted in a model of slow mineral growth at rates of 0.5 to 5 mm/m.y. To test this growth model using finer sampling resolution, in situ microdigestions were performed by applying a drop of hydrofluoric acid directly to opal surfaces within a small area encircled by jeweler's wax. After several minutes, the liquid was removed, spiked with a tracer solution, and analyzed by TIMS for both U and Th using a single rhenium filament with colloidal graphite. Solutions contained about 0.5 nanograms of U, equivalent to opal weights of 1 to 10 micrograms and dissolved-layer thicknesses less than 0.003 mm. Microdigested opal surfaces have Th-230/U ages of 5 to 10 thousand years (ka) in contrast to much older ages of 150 to 250 ka obtained previously from whole-globule digestions. Additional tests of the growth model were made on cross sections of identical opal globules using the sensitive high-resolution ion microprobe (SHRIMP) with a 0.04-mm-diameter O-minus primary beam. Counting rates for Tho-246 and U-234 varied between 5 and 70 counts per second with Th-230/Th-232 activity ratios typically much greater than a million. The Th-230/U ages in the outer 0.3 mm of the globules ranged from about 30 ka at the outer edge to 400 ka at depth. Ages correlate with microstratigraphic depths and indicate average growth rates between 0.5 and 0.7 mm/m.y. Current U-series data do not resolve differential growth rates related to climate changes during this time period. However, both microdigestion and SHRIMP results confirm the previous TIMS-based model of slow, uniform rates of mineral growth in a hydrologically stable environment.

  16. Algorithms for Noisy Problems in Gas Transmission Pipeline Optimization \\Lambda

    E-Print Network [OSTI]

    trillion standard cubic feet of natural gas per year, representing roughly a third of worldwide consumption pipeline, or 10 12 cubic feet per year in the US. With wholesale gas prices in the range of 1$ to 2$ per 10Algorithms for Noisy Problems in Gas Transmission Pipeline Optimization \\Lambda R. G. Carter y J. M

  17. Localized Pipeline Encroachment Detector System Using Sensor Network

    E-Print Network [OSTI]

    Ou, Xiaoxi 1986-

    2011-08-08

    Detection of encroachment on pipeline right-of-way is important for pipeline safety. An effective system can provide on-time warning while reducing the probability of false alarms. There are a number of industry and academic developments to tackle...

  18. Natural Gas Pipeline Leaks Across Washington, DC Robert B. Jackson,,,

    E-Print Network [OSTI]

    Jackson, Robert B.

    Natural Gas Pipeline Leaks Across Washington, DC Robert B. Jackson,,, * Adrian Down, Nathan G increased in recent decades, but incidents involving natural gas pipelines still cause an average of 17 fatalities and $133 M in property damage annually. Natural gas leaks are also the largest anthropogenic

  19. A Parallel Visualization Pipeline for Terascale Earthquake Simulations

    E-Print Network [OSTI]

    Ma, Kwan-Liu

    A Parallel Visualization Pipeline for Terascale Earthquake Simulations Hongfeng Yu Kwan-Liu Ma welling@psc.edu ABSTRACT This paper presents a parallel visualization pipeline imple- mented earth- quake and reduce its risk to the general population. The 0 0-7695-2153-3/04 $20.00 (c)2004 IEEE

  20. Sedimentation in Coal-Water Slurry Pipelining Fabio Rosso

    E-Print Network [OSTI]

    Rosso, Fabio

    Sedimentation in Coal-Water Slurry Pipelining Fabio Rosso Dipartimento di Matematica `Ulisse Dini related to the pipelin- ing of a Coal-Water Slurry. The main aspects of the problem are both be moved from a place to another hundreds of miles away using a liquid as transportation tool. The modern

  1. INFORMAL REPORT DETECTION OF INTERSTATE LIQUIDS PIPELINE LEAKS

    E-Print Network [OSTI]

    with Battelle Memorial Institute and the Colonial Pipeline Company #12;ABSTRACT The approximately 200,000-mile half of the crude oil and petroleum products (gasoline, kerosene, home heating oils, diesel fuels be employed by pipeline companies would be the early detection of leaks while they are still small, that is

  2. Use of look-ahead modeling in pipeline operations

    SciTech Connect (OSTI)

    Wray, B.; O`Leary, C.

    1995-12-31

    Amoco Canada Petroleum Company, Ltd. operates the Cochin pipeline system. Cochin pumps batched liquid ethane, propane, ethylene, butane, and NGL. Operating and scheduling this pipeline is very complex. There are safety considerations, especially for ethylene, which cannot be allowed to drop below vapor pressure. Amoco Canada needs to know where batches are in the line, what pressure profiles will look like into the future, and when batches arrive at various locations along the line. In addition to traditional instrumentation and SCADA, Amoco Canada uses modeling software to help monitor and operate the Cochin pipeline. Two important components of the modeling system are the Estimated Time of Arrival (ETA) and Predictive Model (PM) modules. These modules perform look ahead modeling to assist in operating the Cochin pipeline. The modeling software was first installed for the Cochin system in February of 1994, and was commissioned on August 1, 1994. This paper will discuss how the look ahead modules are used for the Cochin pipeline.

  3. Gulf of Mexico pipelines heading into deeper waters

    SciTech Connect (OSTI)

    True, W.R.

    1987-06-08

    Pipeline construction for Gulf of Mexico federal waters is following drilling and production operations into deeper waters, according to U.S. Department of Interior (DOI) Minerals Management Service (MMS) records. Review of MMS 5-year data for three water depth categories (0-300 ft, 300-600 ft, and deeper than 600 ft) reveals this trend in Gulf of Mexico pipeline construction. Comparisons are shown between pipeline construction applications that were approved by the MMS during this period and projects that have been reported to the MMS as completed. This article is the first of annual updates of MMS gulf pipeline data. Future installments will track construction patterns in water depths, diameter classifications, and mileage. These figures will also be evaluated in terms of pipeline-construction cost data.

  4. Leak detection on an ethylene pipeline

    SciTech Connect (OSTI)

    Hamande, A.; Condacse, V.; Modisette, J.

    1995-12-31

    A model-based leak detection system has been in operation on the Solvay et Cie ethylene pipeline from Antwerp to Jemeppe on Sambre since 1989. The leak detection system, which is the commercial product PLDS of Modisette Associations, Inc., was originally installed by the supplier. Since 1991, all system maintenance and configuration changes have been done by Solvay et Cie personnel. Many leak tests have been performed, and adjustments have been made in the configuration and the automatic tuning parameters. The leak detection system is currently able to detect leaks of 2 tonnes/hour in 11 minutes with accurate location. Larger leaks are detected in about 2 minutes. Leaks between 0.5 and 1 tonne per hour are detected after several hours. (The nominal mass flow in the pipeline is 15 tonnes/hour, with large fluctuations.) Leaks smaller than 0.5 tonnes per hour are not detected, with the alarm thresholds set at levels to avoid false alarms. The major inaccuracies of the leak detection system appear to be associated with the ethylene temperatures.

  5. Bench-Scale Silicone Process for Low-Cost CO{sub 2} Capture

    SciTech Connect (OSTI)

    Wood, Benjamin; Genovese, Sarah; Perry, Robert; Spiry, Irina; Farnum, Rachael; Sing, Surinder; Wilson, Paul; Buckley, Paul; Acharya, Harish; Chen, Wei; McDermott, John; Vipperia, Ravikumar; Yee, Michael; Steele, Ray; Fresia, Megan; Vogt, Kirk

    2013-12-31

    A bench-scale system was designed and built to test an aminosilicone-based solvent. A model was built of the bench-scale system and this model was scaled up to model the performance of a carbon capture unit, using aminosilicones, for CO{sub 2} capture and sequestration (CCS) for a pulverized coal (PC) boiler at 550 MW. System and economic analysis for the carbon capture unit demonstrates that the aminosilicone solvent has significant advantages relative to a monoethanol amine (MEA)-based system. The CCS energy penalty for MEA is 35.9% and the energy penalty for aminosilicone solvent is 30.4% using a steam temperature of 395 C (743 F). If the steam temperature is lowered to 204 C (400 F), the energy penalty for the aminosilicone solvent is reduced to 29%. The increase in cost of electricity (COE) over the non-capture case for MEA is ~109% and increase in COE for aminosilicone solvent is ~98 to 103% depending on the solvent cost at a steam temperature of 395 C (743 F). If the steam temperature is lowered to 204 C (400 F), the increase in COE for the aminosilicone solvent is reduced to ~95-100%.

  6. Bench-scale development of mild gasification char desulfurization. Technical report, 1 March--31 May 1994

    SciTech Connect (OSTI)

    Knight, R.A. [Inst. of Gas Technology, Chicago, IL (United States)

    1994-09-01

    The goal of this project is to scale up a process, developed under a previous ICCI grant, for desulfurization of mild gasification char by treatment with hydrogen-rich process-derived fuel gas at 650--760 C and 7--15 atm. The char can be converted into a low-sulfur metallurgical form coke. In the prior study, IBC-105 coal with 4.0 wt% sulfur was converted to chars with less than 1.0 wt% sulfur in a laboratory-scale batch reactor. The susceptibility of the char to desulfurization was correlated with physicochemical char properties and mild gasification conditions. Acid pretreatment of the coal prior to mild gasification was also shown to significantly enhance subsequent sulfur removal. In this study, IGT is conducting continuous bench-scale tests in a 1-lb/h fluidized-bed reactor to determine the preferred process conditions and obtain steady-state data necessary for process design and scale-up. The desulfurized chars are to be used to produce low-sulfur form coke, which will be evaluated for density, reactivity, and strength properties relevant to utilization in blast furnaces. This quarter, 2,500 g of mild gasification char was produced from untreated IBC-105 coal in the bench-scale reactor. Half of this char will be subjected to sulfuric acid treatment to enhance subsequent desulfurization. Char-producing runs were also initiated with acid-pretreated coal, which will produce about 1,250 g of char.

  7. Design of Bench-Scale Silicone Process for Low-Cost CO{sub 2} Capture

    SciTech Connect (OSTI)

    Wood, Benjamin

    2012-06-30

    The major goal of the project is to design and optimize a bench-scale process for novel silicone CO{sub 2}-capture solvents and establish scalability and potential for commercialization of post-combustion capture of CO{sub 2} from coal-fired power plants. This system should be capable of 90% capture efficiency and demonstrate that less than 35% increase in the cost of energy services can be achieved upon scale-up. Experiments were conducted to obtain data required for design of the major unit operations. The bench-scale system design has been completed, including sizing of major unit operations and the development of a detailed Process and Instrument Diagram (P&ID). The system has been designed to be able to operate over a wide range of process conditions so that the effect of various process variables on performance can be determined. To facilitate flexibility in operation, the absorption column has been designed in a modular manner, so that the height of the column can be varied. The desorber has also been designed to allow for a range of residence times, temperatures, and pressures. The system will be fabricated at Techniserv Inc.

  8. Fabrication, assembly, bench and drilling tests of two prototype downhole pneumatic turbine motors: Final technical report

    SciTech Connect (OSTI)

    Bookwalter, R.; Duettra, P.D.; Johnson, P.; Lyons, W.C.; Miska, S.

    1987-04-01

    The first and second prototype downhole pneumatic turbine motors have been fabricated, assembled and tested. All bench tests showed that the motor will produce horsepower and bit speeds approximating the predicted values. Specifically, the downhole pneumatic turbine motor produced approximately 50 horsepower at 100 rpm, while being supplied with about 3600 SCFM of compressed air. The first prototype was used in a drilling test from a depth of 389 feet to a depth of 789 feet in the Kirtland formation. This first prototype motor drilled at a rate exceeding 180 ft/hr, utilizing only 3000 SCFM of compressed air. High temperature tests (at approximately 460/sup 0/F) were carried out on the thrust assembly and the gearboxes for the two prototypes. These components operated successfully at these temperatures. Although the bench and drilling tests were successful, the tests revealed design changes that should be made before drilling tests are carried out in geothermal boreholes at the Geysers area, near Santa Rosa, California.

  9. School of Public Affairs & Civic Engagement Climate Action Forum

    E-Print Network [OSTI]

    climate change and the proposed Keystone XL Pipeline. Special guest: Pennie Opal Plant from Idle No More

  10. Comparing Existing Pipeline Networks with the Potential Scale of Future U.S. CO2 Pipeline Networks

    SciTech Connect (OSTI)

    Dooley, James J.; Dahowski, Robert T.; Davidson, Casie L.

    2009-04-20

    There is growing interest regarding the potential size of a future U.S. dedicated carbon dioxide (CO2) pipeline infrastructure if carbon dioxide capture and storage (CCS) technologies are commercially deployed on a large scale within the United States. This paper assesses the potential scale of the CO2 pipeline system needed under two hypothetical climate policies (so called WRE450 and WRE550 stabilization scenarios) and compares this to the extant U.S. pipeline infrastructures used to deliver CO2 for enhanced oil recovery (EOR), and to move natural gas and liquid hydrocarbons from areas of production and importation to markets. The analysis reveals that between 11,000 and 23,000 additional miles of dedicated CO2 pipeline might be needed in the U.S. before 2050 across these two cases. While that is a significant increase over the 3,900 miles that comprise the existing national CO2 pipeline infrastructure, it is critically important to realize that the demand for additional CO2 pipeline capacity will unfold relatively slowly and in a geographically dispersed manner as new dedicated CCS-enabled power plants and industrial facilities are brought online. During the period 2010-2030, the growth in the CO2 pipeline system is on the order of a few hundred to less than a thousand miles per year. In comparison during the period 1950-2000, the U.S. natural gas pipeline distribution system grew at rates that far exceed these projections in growth in a future dedicated CO2 pipeline system. This analysis indicates that the need to increase the size of the existing dedicated CO2 pipeline system should not be seen as a major obstacle for the commercial deployment of CCS technologies in the U.S. Nevertheless, there will undoubtedly be some associated regulatory and siting issues to work through but these issues should not be unmanageable based on the size of infrastructure requirements alone.

  11. A Tool for Creating and Parallelizing Bioinformatics Pipelines Chenggang Yu and Paul A. Wilson

    E-Print Network [OSTI]

    A Tool for Creating and Parallelizing Bioinformatics Pipelines Chenggang Yu and Paul A. Wilson US pipelines enable life scientists to require effective parallelization for a pipeline to provide effectively of and databases. The huge amount of data and time individual programs into a pipeline and parallelization

  12. Architecture Description Language driven Validation of Processor, Memory, and Co-Processor Pipelines

    E-Print Network [OSTI]

    Mishra, Prabhat

    -Processor Pipelines Prabhat Mishra Nikil Dutt Alex Nicolau pmishra@cecs.uci.edu dutt@cecs.uci.edu nicolau-up approach to pipeline validation, where the functionality of an existing pipelined processor is, in essence's knowledge about the be- havior of the pipelined architecture, through Architecture Description Language (ADL

  13. Beyond Myopic Inference in Big Data Pipelines Karthik Raman, Adith Swaminathan, Johannes Gehrke, Thorsten Joachims

    E-Print Network [OSTI]

    Joachims, Thorsten

    Beyond Myopic Inference in Big Data Pipelines Karthik Raman, Adith Swaminathan, Johannes Gehrke,adith,johannes,tj}@cs.cornell.edu ABSTRACT Big Data Pipelines decompose complex analyses of large data sets into a series of simpler tasks different pipelines. However, the interaction of independently tuned pipeline components yields poor end

  14. When One Pipeline Is Not Enough Dartmouth Computer Science Technical Report TR2007-596

    E-Print Network [OSTI]

    When One Pipeline Is Not Enough Dartmouth Computer Science Technical Report TR2007-596 Thomas H}@cs.dartmouth.edu Elena Riccio Davidson H5 Technologies laneyd@gmail.com Abstract Pipelines that operate on buffers often on disk. Running a single pipeline on each node works well when each pipeline stage consumes and produces

  15. Technoeconomic Analysis of Biomethane Production from Biogas and Pipeline Delivery (Presentation)

    SciTech Connect (OSTI)

    Jalalzadeh-Azar, A.

    2010-10-18

    This presentation summarizes "A Technoeconomic Analysis of Biomethane Production from Biogas and Pipeline Delivery".

  16. Determining Asynchronous Acyclic Pipeline Execution Times Val Donaldson and Jeanne Ferrante

    E-Print Network [OSTI]

    Ferrante, Jeanne

    Determining Asynchronous Acyclic Pipeline Execution Times Val Donaldson and Jeanne Ferrante0114 fvdonalds,ferranteg@cs.ucsd.edu Abstract Pipeline execution is a form of parallelism in which sub. A measure of the execution time of a pipeline is needed to determine if pipelining is an effective form

  17. The dynamics of a suspended pipeline, in the limit of vanishing stiffness1

    E-Print Network [OSTI]

    Rienstra, Sjoerd W.

    The dynamics of a suspended pipeline, in the limit of vanishing stiffness1 by Corinna Bahriawati2 pipelines during laying in one plane. The linearized, two-dimensional equations of pipeline dynamics and production of oil and natural gas in deep water offshore re- quires the presence of pipelines for transport

  18. A Mesochronous Pipeline Scheme for High Performance Low Power Digital Systems

    E-Print Network [OSTI]

    Delgado-Frias, Jos G.

    A Mesochronous Pipeline Scheme for High Performance Low Power Digital Systems Suryanarayana B University Pullman, WA 99164-2752 Email: {statapud, jdelgado}geecs.wsu.edu Abstract- A mesochronous pipeline mesochronous pipeline over conventional pipeline architecture. in size (longer wires with increased parasitic

  19. A Low-Cost Natural Gas/Freshwater Aerial Pipeline

    E-Print Network [OSTI]

    Alexander Bolonkin; Richard Cathcart

    2007-01-05

    Offered is a new type of low-cost aerial pipeline for delivery of natural gas, an important industrial and residential fuel, and freshwater as well as other payloads over long distances. The offered pipeline dramatically decreases the construction and operation costs and the time necessary for pipeline construction. A dual-use type of freight pipeline can improve an arid rural environment landscape and provide a reliable energy supply for cities. Our aerial pipeline is a large, self-lofting flexible tube disposed at high altitude. Presently, the term "natural gas" lacks a precise technical definition, but the main components of natural gas are methane, which has a specific weight less than air. A lift force of one cubic meter of methane equals approximately 0.5 kg. The lightweight film flexible pipeline can be located in the Earth-atmosphere at high altitude and poses no threat to airplanes or the local environment. The authors also suggest using lift force of this pipeline in tandem with wing devices for cheap shipment of a various payloads (oil, coal and water) over long distances. The article contains a computed macroproject in northwest China for delivery of 24 billion cubic meter of gas and 23 millions tonnes of water annually.

  20. A Low-Cost Natural Gas/Freshwater Aerial Pipeline

    E-Print Network [OSTI]

    Bolonkin, A; Bolonkin, Alexander; Cathcart, Richard

    2007-01-01

    Offered is a new type of low-cost aerial pipeline for delivery of natural gas, an important industrial and residential fuel, and freshwater as well as other payloads over long distances. The offered pipeline dramatically decreases the construction and operation costs and the time necessary for pipeline construction. A dual-use type of freight pipeline can improve an arid rural environment landscape and provide a reliable energy supply for cities. Our aerial pipeline is a large, self-lofting flexible tube disposed at high altitude. Presently, the term "natural gas" lacks a precise technical definition, but the main components of natural gas are methane, which has a specific weight less than air. A lift force of one cubic meter of methane equals approximately 0.5 kg. The lightweight film flexible pipeline can be located in the Earth-atmosphere at high altitude and poses no threat to airplanes or the local environment. The authors also suggest using lift force of this pipeline in tandem with wing devices for che...

  1. The development of a chemical biology pipeline for the identification of small molecules that induce cardiopoiesis in murine embryonic stem cells

    E-Print Network [OSTI]

    Bushway, Paul Jay

    2012-01-01

    of a Chemical Biology Pipeline for the Identification ofof a Chemical Biology Pipeline for the Identification ofhinge on the drug development pipeline and the importance of

  2. Switching of the photonic band gap in three-dimensional film photonic crystals based on opal-VO{sub 2} composites in the 1.3-1.6 {mu}m spectral range

    SciTech Connect (OSTI)

    Pevtsov, A. B. Grudinkin, S. A.; Poddubny, A. N.; Kaplan, S. F.; Kurdyukov, D. A.; Golubev, V. G.

    2010-12-15

    The parameters of three-dimensional photonic crystals based on opal-VO{sub 2} composite films in the 1.3-1.6 {mu}m spectral range important for practical applications (Telecom standard) are numerically calculated. For opal pores, the range of filling factors is established (0.25-0.6) wherein the composite exhibits the properties of a three-dimensional insulator photonic crystal. On the basis of the opal-VO{sub 2} composites, three-dimensional photonic film crystals are synthesized with specified parameters that provide a maximum shift of the photonic band gap in the vicinity of the wavelength {approx}1.5 {mu}m ({approx}170 meV) at the semiconductor-metal transition in VO{sub 2}.

  3. The unusual construction aspects of China`s Yacheng 13-1 gas pipeline -- The world`s second longest subsea pipeline

    SciTech Connect (OSTI)

    Woolgar, A.F.; Wilburn, J.S.; Zhao, X.

    1996-12-31

    There are many unusual construction aspects relating to China`s Yacheng 13-1 Pipeline. Initially planned as an onshore pipeline it was later to become Asia`s longest subsea pipeline. The route chosen resulted in an offshore pipeline requiring many unique and innovative construction techniques as well as unusual pipeline installation constraints. The pipeline was installed in two phases. The first phase of 707 km was to be the longest pipeline ever constructed within one lay season and with one lay vessel in a continuous program. Upon completion of the second phase of pipelay works, the world`s longest ever subsea pipeline flooding in one run of 778 kms was to follow. The Yacheng 13-1 construction requirements for pipelay and post installation works, including testing and commissioning were extremely demanding. This paper details how these requirements were met. It covers route selection constraints, construction techniques utilized and the demanding pigging and pre-commissioning operations performed.

  4. Bench-mark solution for a penny-shaped hydraulic fracture driven by a thinning fluid

    E-Print Network [OSTI]

    Linkov, Aleksandr

    2015-01-01

    The paper presents a solution for axisymmetric propagation of a penny-shaped crack driven by a thinning fluid. The solution to the accuracy of four significant digits, at least, is obtained on the basis of the modified formulation of hydraulic fracture problem by employing the particle velocity, rather than conventionally used flux. This serves to properly organize iterations in the opening after reducing the problem to the self-similar form. Numerical results obtained show relatively small dependence of self-similar quantities (fracture radius, propagation speed, opening, particle velocity, pressure, flux) on the behavior index of a thinning fluid. The results provide bench marks for the accuracy control of truly 3D simulators and they serve for assigning an apparent viscosity when simulating the action of a thinning fluid by replacing it with an equivalent Newtonian fluid.

  5. Test bench to commission a third ion source beam line and a newly designed extraction system

    SciTech Connect (OSTI)

    Winkelmann, T.; Cee, R.; Haberer, T.; Naas, B.; Peters, A.

    2012-02-15

    The HIT (Heidelberg Ion Beam Therapy Center) is the first hospital-based treatment facility in Europe where patients can be irradiated with protons and carbon ions. Since the commissioning starting in 2006 two 14.5 GHz electron cyclotron resonance ion sources are routinely used to produce a variety of ion beams from protons up to oxygen. In the future a helium beam for regular patient treatment is requested, therefore a third ion source (Supernanogan source from PANTECHNIK S.A.) will be integrated. This third ECR source with a newly designed extraction system and a spectrometer line is installed at a test bench at HIT to commission and validate this section. Measurements with different extraction system setups will be presented to show the improvement of beam quality for helium, proton, and carbon beams. An outlook to the possible integration scheme of the new ion source into the production facility will be discussed.

  6. Design, fabrication, and bench testing of a solar chemical receiver. Final report

    SciTech Connect (OSTI)

    Summers, W.A.; Pierre, J.F.

    1981-01-01

    Solar thermal energy can be effectively collected, transported, stored, and utilized by means of a chemical storage and transport system employing the reversible SO2 oxidation reaction. A solar chemical receiver for SO3 thermal decomposition to SO2 and oxygen was analyzed. Bench tests of a ten foot section of a receiver module were conducted with dissociated sulfuric acid (SO3 and H2O) in an electrical furnace. Measured percent conversion of SO3 was 85% of the equilibrium value. Methods were developed to fabricate and assemble a complete receiver module. These methods included applying an aluminide coating to certain exposed surfaces, assembling concentric tubes with a wire spacer, applying a platinum catalyst to the tubing wall, and coiling the entire assembly into the desired configuration.

  7. BENCH-SCALE STEAM REFORMING OF ACTUAL TANK 48H WASTE

    SciTech Connect (OSTI)

    Burket, P; Gene Daniel, G; Charles Nash, C; Carol Jantzen, C; Michael Williams, M

    2008-09-25

    Fluidized Bed Steam Reforming (FBSR) has been demonstrated to be a viable technology to remove >99% of the organics from Tank 48H simulant, to remove >99% of the nitrate/nitrite from Tank 48H simulant, and to form a solid product that is primarily carbonate based. The technology was demonstrated in October of 2006 in the Engineering Scale Test Demonstration Fluidized Bed Steam Reformer1 (ESTD FBSR) at the Hazen Research Inc. (HRI) facility in Golden, CO. The purpose of the Bench-scale Steam Reformer (BSR) testing was to demonstrate that the same reactions occur and the same product is formed when steam reforming actual radioactive Tank 48H waste. The approach used in the current study was to test the BSR with the same Tank 48H simulant and same Erwin coal as was used at the ESTD FBSR under the same operating conditions. This comparison would allow verification that the same chemical reactions occur in both the BSR and ESTD FBSR. Then, actual radioactive Tank 48H material would be steam reformed in the BSR to verify that the actual tank 48H sample reacts the same way chemically as the simulant Tank 48H material. The conclusions from the BSR study and comparison to the ESTD FBSR are the following: (1) A Bench-scale Steam Reforming (BSR) unit was successfully designed and built that: (a) Emulated the chemistry of the ESTD FBSR Denitration Mineralization Reformer (DMR) and Carbon Reduction Reformer (CRR) known collectively as the dual reformer flowsheet. (b) Measured and controlled the off-gas stream. (c) Processed real (radioactive) Tank 48H waste. (d) Met the standards and specifications for radiological testing in the Savannah River National Laboratory (SRNL) Shielded Cells Facility (SCF). (2) Three runs with radioactive Tank 48H material were performed. (3) The Tetraphenylborate (TPB) was destroyed to > 99% for all radioactive Bench-scale tests. (4) The feed nitrate/nitrite was destroyed to >99% for all radioactive BSR tests the same as the ESTD FBSR. (5) The radioactive Tank 48H DMR product was primarily made up of soluble carbonates. The three most abundant species were thermonatrite, [Na{sub 2}CO{sub 3} {center_dot} H{sub 2}O], sodium carbonate, [Na{sub 2}CO{sub 3}], and trona, [Na{sub 3}H(CO{sub 3}){sub 2} {center_dot} 2H{sub 2}O] the same as the ESTD FBSR. (6) Insoluble solids analyzed by X-Ray Diffraction (XRD) did not detect insoluble carbonate species. However, they still may be present at levels below 2 wt%, the sensitivity of the XRD methodology. Insoluble solids XRD characterization indicated that various Fe/Ni/Cr/Mn phases are present. These crystalline phases are associated with the insoluble sludge components of Tank 48H slurry and impurities in the Erwin coal ash. The percent insoluble solids, which mainly consist of un-burnt coal and coal ash, in the products were 4 to 11 wt% for the radioactive runs. (7) The Fe{sup +2}/Fe{sub total} REDOX measurements ranged from 0.58 to 1 for the three radioactive Bench-scale tests. REDOX measurements > 0.5 showed a reducing atmosphere was maintained in the DMR indicating that pyrolysis was occurring. (8) Greater than 90% of the radioactivity was captured in the product for all three runs. (9) The collective results from the FBSR simulant tests and the BSR simulant tests indicate that the same chemistry occurs in the two reactors. (10) The collective results from the BSR simulant runs and the BSR radioactive waste runs indicates that the same chemistry occurs in the simulant as in the real waste. The FBSR technology has been proven to destroy the organics and nitrates in the Tank 48H waste and form the anticipated solid carbonate phases as expected.

  8. 05Mar09 ANALYSISIn crisis, GE finds its deep bench not so magical By James B. Kelleher

    E-Print Network [OSTI]

    Kuzmanovic, Aleksandar

    05Mar09 ANALYSISIn crisis, GE finds its deep bench not so magical By James B. Kelleher CHICAGO, March 5 (Reuters) Crotonville, we have a problem. The travails of General Electric Co GE and expensive training program credited with creating those managers. In recent weeks, GE executives have

  9. Application Filing Requirements for Natural Gas Pipeline Construction Projects (Wisconsin)

    Broader source: Energy.gov [DOE]

    Any utility proposing to construct a natural gas pipeline requiring a Certificate of Authority (CA) under Wis. Stat. 196.49 must prepare an application for Commission review. These regulations ...

  10. Slurry Retrieval, Pipeline Transport & Plugging and Mixing Workshop

    Office of Environmental Management (EM)

    Gary L. Smith - Office of Waste Processing (EM-21) Slurry Retrieval, Pipeline Transport & Plugging and Mixing Workshop 1 Dr. Gary L. Smith - Office of Waste Processing (EM-21) Dr....

  11. U.S. LPG pipeline begins deliveries to Pemex terminal

    SciTech Connect (OSTI)

    Bodenhamer, K.C.

    1997-08-11

    LPG deliveries began this spring to the new Mendez LPG receiving terminal near Juarez, State of Chihuahua, Mexico. Supplying the terminal is the 265-mile, 8-in. Rio Grande Pipeline that includes a reconditioned 217-mile, 8-in. former refined-products pipeline from near Odessa, Texas, and a new 48-mile, 8-in. line beginning in Hudspeth County and crossing the US-Mexico border near San Elizario, Texas. Capacity of the pipeline is 24,000 b/d. The LPG supplied to Mexico is a blend of approximately 85% propane and 15% butane. Before construction and operation of the pipeline, PGPB blended the propane-butane mix at a truck dock during loading. Demand for LPG in northern Mexico is strong. Less than 5% of the homes in Juarez have natural gas, making LPG the predominant energy source for cooking and heating in a city of more than 1 million. LPG also is widely used as a motor fuel.

  12. Simulation effectively sites surge-relief facilities on Saudi pipeline

    SciTech Connect (OSTI)

    Dempsey, J.J.; Al-Gouhi, A.H. (Saudi Arabian Oil Co., Dhahrain (Saudi Arabia))

    1993-09-20

    Pipeline hydraulic and surge analysis studies of the Saudi Aramco East-West crude-oil pipeline assisted in expanding the system's capacity by 50%. Surge studies predicted that operational upsets, such as the trip of a pump station, cause excessive surge pressures in the pipeline system at new flow rates. Additional surge studies showed that surge-relief stations must be located downstream from each of six pump stations. The new surge-relief stations and an increase in capacity of existing surge-relief stations protect the pipelines at the higher flow rates. The paper describes modeling the system, the analysis of the hydraulics, surge analysis, acoustic transit times, relief valve simulation, surge-relief protection, surge-relief stations, station locations, simulation results, tank sizing, and valve testing.

  13. Ductile fracture and structural integrity of pipelines & risers

    E-Print Network [OSTI]

    Kofiani, Kirki N. (Kirki Nikolaos)

    2013-01-01

    The Oil and Gas (O&G) industry has recently turned its interest towards deep and ultra-deep offshore installations in order to address the global increase of energy demand. Pipelines and risers are key components for the ...

  14. Analysis of Subsea Buried Pipelines and Partially Buried Cables

    E-Print Network [OSTI]

    Bai, Yanbin

    2014-08-26

    This research investigation addresses the analysis and numerical simulation of two very important offshore engineering problems. The first deals with the modeling of the steady state thermal field around buried pipelines conveying high temperature...

  15. Response of continuous pipelines to tunnel induced ground deformations

    E-Print Network [OSTI]

    Ieronymaki, Evangelia S

    2011-01-01

    This thesis develops analytical solutions for estimating the bending moments and axial loads in a buried pipeline due to ground movements caused by tunnel construction in soft ground. The solutions combine closed-form, ...

  16. Natural Gas Pipeline Research: Best Practices in Monitoring Technology

    E-Print Network [OSTI]

    Natural Gas Pipeline Research: Best Practices in Monitoring Technology Energy Systems Research Office Energy Technology Systems Integration http://www.energy.ca.gov/research/integratio n. It will identify immediate opportunities to improve the assessment, monitoring, and integrity management program

  17. Pipeline issues shape southern FSU oil, gas development

    SciTech Connect (OSTI)

    1995-05-22

    To future production from southern republics of the former Soviet Union (FSU), construction and revitalization of pipelines are as important as the supply of capital. Export capacity will limit production and slow development activity in the region until new pipelines are in place. Plenty of pipeline proposals have come forward. The problem is politics, which for every proposal so far complicates routing or financing or both. Russia has made clear its intention to use pipeline route decisions to retain influence in the region. As a source of external pressure, it is not alone. Iran and Turkey also have made strong bids for the southern FSU`s oil and gas transport business. Diplomacy thus will say as much as commerce does about how transportation issues are settled and how quickly the southern republics move toward their potentials to produce oil and gas. The paper discusses possible routes and the problems with them, the most likely proposal, and future oil flows.

  18. Structural Genomics of Minimal Organisms: Pipeline and Results

    E-Print Network [OSTI]

    Kim, Sung-Hou

    2008-01-01

    of recombinant proteins. J. Struct. Funct. Genomics 5:69-74.proteins. J. Struct. Funct. Genomics 5:69-74. Oganesyan,Structural Genomics of Minimal Organisms: Pipeline and

  19. Pipelines following exploration in deeper Gulf of Mexico

    SciTech Connect (OSTI)

    True, W.R.

    1988-07-04

    Gulf of Mexico pipeline construction has been falling of sharply to shallow-water (less than 300 ft) areas, while construction for middle depth (300 - 600 ft) and deepwater (600 + ft) areas as been holding steady. These trends are evident from analyses of 5-year data compiled by the U.S. Department of Interior (DOI) Minerals Management Service (MMS). This article continues a series of updates based on MMS gulf pipeline data (OGJ, June 8, 1987, p. 50). These installments track construction patterns in water depths, diameter classifications, and mileage. The figures are also evaluated in terms of pipeline-construction cost data published in Oil and Gas Journal's annual Pipeline Economics Reports.

  20. EIA - Natural Gas Pipeline Network - Natural Gas Supply Basins...

    Gasoline and Diesel Fuel Update (EIA)

    with selected updates U.S. Natural Gas Supply Basins Relative to Major Natural Gas Pipeline Transportation Corridors, 2008 U.S. Natural Gas Transporation Corridors out of Major...

  1. Hydrogen Embrittlement of Pipeline Steels: Causes and Remediation...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Presentation by 09-Sofronis to DOE Hydrogen Pipeline R&D Project Review Meeting held January 5-6, 2005 at Oak Ridge National Laboratory in Oak Ridge, Tennessee....

  2. Blending Hydrogen into Natural Gas Pipeline Networks: A Review...

    Broader source: Energy.gov (indexed) [DOE]

    Blending Hydrogen into Natural Gas Pipeline Networks: A Review of Key Issues M. W. Melaina, O. Antonia, and M. Penev Technical Report NRELTP-5600-51995 March 2013 NREL is a...

  3. EIA - Natural Gas Imports & Exports/Pipelines Data & Analysis

    Gasoline and Diesel Fuel Update (EIA)

    Imports & Exports Pipelines U.S. Imports by Country Prices and volumes (monthly, annual). U.S. Exports by Country Prices and volumes (monthly, annual). U.S. Imports & Exports by...

  4. Section 4.1 Flows You are designing an oil pipeline. The pipeline is to have a pumping station p and a

    E-Print Network [OSTI]

    Gould, Ron

    Chapter 4 Networks Section 4.1 Flows You are designing an oil pipeline. The pipeline is to have and s2 on the southern route. Finally, there will also be a pipeline from s2 to n1, from s2 to n2 and from n2 to s1. Our pipeline will also cross several county borders, and each county has a different

  5. Section 4.1 Flows You are designing an oil pipeline. The pipeline is to have a pumping station p and a

    E-Print Network [OSTI]

    Gould, Ron

    Chapter 4 Networks Section 4.1 Flows You are designing an oil pipeline. The pipeline is to have and s 2 on the southern route. Finally, there will also be a pipeline from s 2 to n 1 , from s 2 to n 2 and from n 2 to s 1 . Our pipeline will also cross several county borders, and each county has a different

  6. The liquefied natural gas pipeline: a system study

    E-Print Network [OSTI]

    Hazel, Thomas Ray

    1972-01-01

    THE LIQUEFIED NATURAL GAS PIPELINE: A SYSTEM STUDY A Thesis by THOMAS RAY HAZEL Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE May 1972 Major Subject...: Mechanical Engineering THE LIQUEFIED NATURAL GAS PIPELINE: A SYSTEM STUDY A Thesis by THOMAS RAY HAZEL Approved as to style and content by: Chairman o 'Committee) (Head of Department) (Member) (Member) (Member) (Member) (Member) May 1972 ABSTRACT...

  7. A First Comparison Between LIGO and Virgo Inspiral Search Pipelines

    E-Print Network [OSTI]

    L. Blackburn; F. Beauville; M. -A. Bizouard; L. Bosi; P. Brady; L. Brocco; D. Brown; D. Buskulic; S. Chatterji; N. Christensen; A. -C. Clapson; S. Fairhurst; D. Grosjean; G. Guidi; P. Hello; E. Katsavounidis; M. Knight; A. Lazzarini; F. Marion; B. Mours; F. Ricci; A. Vicere'; M. Zanolin

    2005-04-12

    This article reports on a project that is the first step the LIGO Scientific Collaboration and the Virgo Collaboration have taken to prepare for the mutual search for inspiral signals. The project involved comparing the analysis pipelines of the two collaborations on data sets prepared by both sides, containing simulated noise and injected events. The ability of the pipelines to detect the injected events was checked, and a first comparison of how the parameters of the events were recovered has been completed.

  8. Statistical Modeling of Corrosion Failures in Natural Gas Transmission Pipelines

    E-Print Network [OSTI]

    Cobanoglu, Mustafa Murat

    2014-03-28

    such as pipeline and operator information, failure causes, consequences of these incidents, cathodic protection conditions, coating conditions, property damage, year of installation information, and etc. However, a number of items are missing. For example... was external corrosion due to inadequate cathodic protection (Riemer and Orazem, 2000). Due to an increasing number of incidents and their consequences, reliability of the pipeline system is becoming crucial for the operators and public in general. Public...

  9. EIS-0152: Iroquois/Tennessee Phase I Pipeline Project

    Broader source: Energy.gov [DOE]

    The Federal Energy Regulatory Commission prepared this statement to asses the environmental impacts of constructing and operating an interstate natural gas pipeline and associated infrastructure to transport gas from Canada and domestic sources to the New England Market, as proposed by the Iroquois Gas Transmission System and the Tennessee Gas Pipeline Company. The U.S. Department of Energy Office of Fossil Energy was a cooperating agency during statement development and adopted the statement on 9/1/1990.

  10. Deliverability on the interstate natural gas pipeline system

    SciTech Connect (OSTI)

    1998-05-01

    Deliverability on the Interstate Natural Gas Pipeline System examines the capability of the national pipeline grid to transport natural gas to various US markets. The report quantifies the capacity levels and utilization rates of major interstate pipeline companies in 1996 and the changes since 1990, as well as changes in markets and end-use consumption patterns. It also discusses the effects of proposed capacity expansions on capacity levels. The report consists of five chapters, several appendices, and a glossary. Chapter 1 discusses some of the operational and regulatory features of the US interstate pipeline system and how they affect overall system design, system utilization, and capacity expansions. Chapter 2 looks at how the exploration, development, and production of natural gas within North America is linked to the national pipeline grid. Chapter 3 examines the capability of the interstate natural gas pipeline network to link production areas to market areas, on the basis of capacity and usage levels along 10 corridors. The chapter also examines capacity expansions that have occurred since 1990 along each corridor and the potential impact of proposed new capacity. Chapter 4 discusses the last step in the transportation chain, that is, deliverability to the ultimate end user. Flow patterns into and out of each market region are discussed, as well as the movement of natural gas between States in each region. Chapter 5 examines how shippers reserve interstate pipeline capacity in the current transportation marketplace and how pipeline companies are handling the secondary market for short-term unused capacity. Four appendices provide supporting data and additional detail on the methodology used to estimate capacity. 32 figs., 15 tabs.

  11. Criteria for the recognition of pedogenic/supergene and nonpedogenic/hypogene deposits and their relationship to the origin of calcite/opal deposits at Yucca Mountain. Special report No. 14

    SciTech Connect (OSTI)

    Hill, C.A.; Schluter, C.M.; Monger, H.C.

    1993-10-01

    This study is part of the research program of the Yucca Mountain Project intended to provide the State of Nevada with a detailed assessment of the geology and geochemistry of Yucca Mountain and adjacent regions. The purpose of this report is to try and establish criteria for the recognition of pedogenic/supergene deposits of calcite/opal versus non-pedogenic/hypogene deposits of calcite/opal. Far from being of esoteric concern, this subject is of paramount importance to the pedogenic-hypogene debate which rages around the suitability of Yucca Mountain as a high-level radioactive waste repository site.

  12. Pipeline integrity design for differential settlement in discontinuous permafrost areas

    SciTech Connect (OSTI)

    Zhou, Z.J.; Boivin, R.P.; Glover, A.G.; Kormann, P.J.

    1996-12-31

    The NOVA Gas Transmission Ltd. (NGTL) gas pipeline system is expanding northwards as the producers search for and find new gas reserves. This growth has taken the system into the discontinuous permafrost zone, and also into new design problems. One such problem is the structural integrity of a pipeline subjected to the settlement differentials that occur between frozen and unfrozen soils. Adequate integrity design for differential settlement is required by design codes, such as CSA Z662, but the procedures and criteria must be established by the pipeline designers. This paper presents the methodology of pipeline integrity design for differential settlements used on a number of pipeline projects in Northwest Alberta. Outlined in the paper are the procedures, rationales and models used to: (a) locate discontinuous permafrost; (b) quantify the potential differential settlement; (c) predict pipeline stresses and strains; (d) establish strain limits; and (e) determine the pipe wall thickness to withstand those potential differential settlements. Several design options are available and are briefly discussed. For the projects mentioned, the heavy wall pipe option was identified as a cost effective design for medium to large differential settlements.

  13. New developments in pipeline charging preheated coal at Inland Steel

    SciTech Connect (OSTI)

    Sorensen, S.M. Jr.; Arsenault, A.A.; Rupp, P.A.

    1982-01-01

    The first commercial installation of a new pipeline oven charging system for preheated coal, designed by Dynamic Air, Inc., was made at Inland Steel's C Battery in October 1979. With the Dynamic Air charging sytem, production losses due to pipeline delays have been virtually eliminated, pipeline maintenance requirements have been reduced by 90%, conveying steam requirements have been significantly reduced, and oven charge weights have been increased by 500 kg (1000 lb). A test program was subsequently conducted during November and December 1980, to evaluate the use of nitrogen as a conveying medium for pipeline oven charging with the Dynamic Air system. The test results clearly demonstrated that the same weight of preheated coal could be charged into an oven by using either steam or nitrogen as the conveying medium. Moreover, it was found that pipeline oven charging with the Dynamic Air system is a function of the mass flow rate of the conveying medium. With nitrogen charging, an average 9% increase in oven charge rates was obtained at comparable conveying gas mass flow rates and charging bin pressures. In addition, average oven pressure during charging was reduced by approximately 40% and solids carryover was reduced by 100 kg (220 lb) per oven charge with nitrogen charging. It was found that solids carryover during pipeline oven charging is a function of the average pressure generated in the oven during charging, but it was also found that a large oven pressure surge at the end of the charge can produce excessive carryover to completely mask the effect.

  14. Development of the Write Process for Pipeline-Ready Heavy Oil

    SciTech Connect (OSTI)

    Lee Brecher; Charles Mones; Frank Guffey

    2009-03-07

    Work completed under this program advances the goal of demonstrating Western Research Institute's (WRI's) WRITE{trademark} process for upgrading heavy oil at field scale. MEG Energy Corporation (MEG) located in Calgary, Alberta, Canada supported efforts at WRI to develop the WRITE{trademark} process as an oil sands, field-upgrading technology through this Task 51 Jointly Sponsored Research project. The project consisted of 6 tasks: (1) optimization of the distillate recovery unit (DRU), (2) demonstration and design of a continuous coker, (3) conceptual design and cost estimate for a commercial facility, (4) design of a WRITE{trademark} pilot plant, (5) hydrotreating studies, and (6) establish a petroleum analysis laboratory. WRITE{trademark} is a heavy oil and bitumen upgrading process that produces residuum-free, pipeline ready oil from heavy material with undiluted density and viscosity that exceed prevailing pipeline specifications. WRITE{trademark} uses two processing stages to achieve low and high temperature conversion of heavy oil or bitumen. The first stage DRU operates at mild thermal cracking conditions, yielding a light overhead product and a heavy residuum or bottoms material. These bottoms flow to the second stage continuous coker that operates at severe pyrolysis conditions, yielding light pyrolyzate and coke. The combined pyrolyzate and mildly cracked overhead streams form WRITE{trademark}'s synthetic crude oil (SCO) production. The main objectives of this project were to (1) complete testing and analysis at bench scale with the DRU and continuous coker reactors and provide results to MEG for process evaluation and scale-up determinations and (2) complete a technical and economic assessment of WRITE{trademark} technology to determine its viability. The DRU test program was completed and a processing envelope developed. These results were used for process assessment and for scaleup. Tests in the continuous coker were intended to determine the throughput capability of the coker so a scaled design could be developed that maximized feed rate for a given size of reactor. These tests were only partially successful because of equipment problems. A redesigned coker, which addressed the problems, has been build but not operated. A preliminary economic analysis conducted by MEG and an their engineering consultant concluded that the WRITE{trademark} process is a technically feasible method for upgrading bitumen and that it produces SCO that meets pipeline specifications for density. When compared to delayed coking, the industry benchmark for thermal upgrading of bitumen, WRITE{trademark} produced more SCO, less coke, less CO{sub 2} per barrel of bitumen fed, and had lower capital and operating costs. On the other hand, WRITE{trademark}'s lower processing severity yielded crude with higher density and a different product distribution for naphtha, light gas oil and vacuum oil that, taken together, might reduce the value of the SCO. These issues plus the completion of more detailed process evaluation and economics need to be resolved before WRITE{trademark} is deployed as a field-scale pilot.

  15. INTERNAL REPAIR OF PIPELINES REVIEW & EVALUATION OF INTERNAL PIPELINE REPAIR TRIALS REPORT

    SciTech Connect (OSTI)

    Robin Gordon; Bill Bruce; Ian Harris; Dennis Harwig; George Ritter; Bill Mohr; Matt Boring; Nancy Porter; Mike Sullivan; Chris Neary

    2004-09-01

    The two broad categories of fiber-reinforced composite liner repair and deposited weld metal repair technologies were reviewed and evaluated for potential application for internal repair of gas transmission pipelines. Both are used to some extent for other applications and could be further developed for internal, local, structural repair of gas transmission pipelines. Evaluation trials were conducted on pipe sections with simulated corrosion damage repaired with glass fiber-reinforced composite liners, carbon fiber-reinforced composite liners, and weld deposition. Additional un-repaired pipe sections were evaluated in the virgin condition and with simulated damage. Hydrostatic failure pressures for pipe sections repaired with glass fiber-reinforced composite liner were only marginally greater than that of pipe sections without liners, indicating that this type of liner is generally ineffective at restoring the pressure containing capabilities of pipelines. Failure pressure for pipe repaired with carbon fiber-reinforced composite liner was greater than that of the un-repaired pipe section with damage, indicating that this type of liner is effective at restoring the pressure containing capability of pipe. Pipe repaired with weld deposition failed at pressures lower than that of un-repaired pipe in both the virgin and damaged conditions, indicating that this repair technology is less effective at restoring the pressure containing capability of pipe than a carbon fiber-reinforced liner repair. Physical testing indicates that carbon fiber-reinforced liner repair is the most promising technology evaluated to-date. Development of a comprehensive test plan for this process is recommended for use in the next phase of this project.

  16. Power line fault current coupling to nearby natural gas pipelines: Volume 3, Analysis of pipeline coating impedance: Final report

    SciTech Connect (OSTI)

    Dabkowski, J.; Frazier, M. J.

    1988-08-01

    This report is a compilation of results obtained from two research programs. The response of a pipeline and coating at the higher voltage excitation levels encountered under power line fault conditions appears to be dominated by conduction at holiday sites in the coating. A simple analytical model was developed for predicting the resistance of a pipeline coating holiday as a function of the voltage produced across the pipeline coating by a nearby faulted power transmission line. The model was initially validated using coated pipeline samples stressed by a capacitive discharge voltage. Additional validation tests were then performed at the Pacific Gas and Electric Company's High Voltage Engineering Research Facility using high voltage ac waveforms for fault simulation. The principle program objective was to develop, both by laboratory and controlled field testing, an electrical resistance characterization for the pipeline coating as a function of the applied voltage level. The development of this model will allow a more accurate prediction of coupled voltage levels to a pipeline during fault current conditions. 54 figs, 3 tabs.

  17. EIA - Natural Gas Pipeline System - Links to U.S. Natural Gas Pipeline

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969Central Region About U.S. Natural Gas Pipelines -

  18. Illumina GA IIx & HiSeq 2000 Production Sequenccing and QC Analysis Pipelines at the DOE Joint Genome Institute

    E-Print Network [OSTI]

    Daum, Christopher

    2011-01-01

    Sequencing and QC Analysis Pipelines at the DOE Joint GenomeSequencing and QC Analysis Pipelines at the DOE Joint GenomeGenome Analyzer and HiSeq pipeline has been established.

  19. Three-dimensional morphology and gene expression in the Drosophila blastoderm at cellular resolution I: data acquisition pipeline

    E-Print Network [OSTI]

    2006-01-01

    I: data acquisition pipeline The electronic version of thiswe describe an integrated pipeline of methods for studyingA three-dimensional analysis pipeline To be able to analyze

  20. Disproportionality fills in the gaps: Connections between achievement, discipline and special education in the School-to-Prison Pipeline

    E-Print Network [OSTI]

    Annamma, Subini; Morrison, Deb; Jackson, Darrell

    2014-01-01

    discipline, and the school to prison pipeline. Journal ofD. (2010). The school-to-prison-pipeline: Structuring legalFund (2005). School to prison pipeline. Retrieved from

  1. Strain concentrations in pipelines with concrete coating

    SciTech Connect (OSTI)

    Ness, O.B.; Verley, R. [Statoil, Trondheim (Norway)

    1996-08-01

    This paper concerns the strain distribution, and in particular strain concentration in field joints, for concrete-covered pipelines during laying. A semi-analytical model, full-scale tests to verify the model, and results of a parameter study are described. The model is used to establish nonlinear moment-curvature curves at a number of cross sections on the concrete-coated pipe and in the field joint (FJ). These are used to establish a strain concentration factor (SCF) for the FJ, or characteristics for a varying stiffness model of a pipe for direct use in lay analyses. Constant moment, four-point bending tests have been conducted on 16-in and 20-in dia, concrete-coated pipes as well as material tests on the pipe steel, corrosion coating and concrete. The behavior of the pipe, and in particular the SCF at the field joints, is investigated and compared to predictions using the semi-analytical model. The model is found to give a good prediction of the SCF and strain distribution along the pipe joint, for both the steel and the concrete, and is suitable for use in lay analyses for the overbend of S-mode lay vessels.

  2. Qualification of Innovative High Level Waste Pipeline Unplugging Technologies

    SciTech Connect (OSTI)

    McDaniel, D.; Gokaltun, S.; Varona, J.; Awwad, A.; Roelant, D.; Srivastava, R.

    2008-07-01

    In the past, some of the pipelines have plugged during high level waste (HLW) transfers resulting in schedule delays and increased costs. Furthermore, pipeline plugging has been cited by the 'best and brightest' technical review as one of the major issues that can result in unplanned outages at the Waste Treatment Plant causing inconsistent operation. As the DOE moves toward a more active high level waste retrieval, the site engineers will be faced with increasing cross-site pipeline waste slurry transfers that will result in increased probability of a pipeline getting plugged. Hence, availability of a pipeline unplugging tool/technology is crucial to ensure smooth operation of the waste transfers and in ensuring tank farm cleanup milestones are met. FIU had earlier tested and evaluated various unplugging technologies through an industry call. Based on mockup testing, two technologies were identified that could withstand the rigors of operation in a radioactive environment and with the ability to handle sharp 90 elbows. We present results of the second phase of detailed testing and evaluation of pipeline unplugging technologies and the objective is to qualify these pipeline unplugging technologies for subsequent deployment at a DOE facility. The current phase of testing and qualification comprises of a heavily instrumented 3-inch diameter (full-scale) pipeline facilitating extensive data acquisition for design optimization and performance evaluation, as it applies to three types of plugs atypical of the DOE HLW waste. Furthermore, the data from testing at three different lengths of pipe in conjunction with the physics of the process will assist in modeling the unplugging phenomenon that will then be used to scale-up process parameters and system variables for longer and site typical pipe lengths, which can extend as much as up to 19,000 ft. Detailed information resulting from the testing will provide the DOE end-user with sufficient data and understanding of the technology, and its limitations to aid in the benefit-cost analysis for management decision whether to deploy the technology or to abandon the pipeline as has been done in the past. In conclusion: The ultimate objective of this study is to qualify NuVision's unplugging technology for use at Hanford. Experimental testing has been conducted using three pipeline lengths and three types of blockages. Erosion rates have been obtained and pressure data is being analyzed. An amplification of the inlet pressure has been observed along the pipeline and is the key to determining up to what pipe lengths the technology can be used without surpassing the site pressure limit. In addition, we will attempt to establish what the expected unplugging rates will be at the longer pipe lengths for each of the three blockages tested. Detailed information resulting from the testing will provide the DOE end-user with sufficient data and understanding of the technology, and its limitations so that management decisions can be made whether the technology has a reasonable chance to successfully unplug a pipeline, such as a cross site transfer line or process transfer pipeline at the Waste Treatment Plant. (authors)

  3. Complexity analysis of pipeline mapping problems in distributed heterogeneous networks

    SciTech Connect (OSTI)

    Lin, Ying; Wu, Qishi; Zhu, Mengxia; Rao, Nageswara S

    2009-04-01

    Largescale scientific applications require using various system resources to execute complex computing pipelines in distributed networks to support collaborative research. System resources are typically shared in the Internet or over dedicated connections based on their location, availability, capability, and capacity. Optimizing the network performance of computing pipelines in such distributed environments is critical to the success of these applications. We consider two types of largescale distributed applications: (1) interactive applications where a single dataset is sequentially processed along a pipeline; and (2) streaming applications where a series of datasets continuously flow through a pipeline. The computing pipelines of these applications consist of a number of modules executed in a linear order in network environments with heterogeneous resources under different constraints. Our goal is to find an efficient mapping scheme that allocates the modules of a pipeline to network nodes for minimum endtoend delay or maximum frame rate. We formulate the pipeline mappings in distributed environments as optimization problems and categorize them into six classes with different optimization goals and mapping constraints: (1) Minimum Endtoend Delay with No Node Reuse (MEDNNR), (2) Minimum Endtoend Delay with Contiguous Node Reuse (MEDCNR), (3) Minimum Endtoend Delay with Arbitrary Node Reuse (MEDANR), (4) Maximum Frame Rate with No Node Reuse or Share (MFRNNRS), (5) Maximum Frame Rate with Contiguous Node Reuse and Share (MFRCNRS), and (6) Maximum Frame Rate with Arbitrary Node Reuse and Share (MFRANRS). Here, 'contiguous node reuse' means that multiple contiguous modules along the pipeline may run on the same node and 'arbitrary node reuse' imposes no restriction on node reuse. Note that in interactive applications, a node can be reused but its resource is not shared. We prove that MEDANR is polynomially solvable and the rest are NP-complete. MEDANR, where either contiguous or noncontiguous modules in the pipeline can be mapped onto the same node, is essentially the Maximum n-hop Shortest Path problem, and can be solved using a dynamic programming method. In MEDNNR and MFRNNRS, any network node can be used only once, which requires selecting the same number of nodes for onetoone onto mapping. We show its NP-completeness by reducing from the Hamiltonian Path problem. Node reuse is allowed in MEDCNR, MFRCNRS and MFRANRS, which are similar to the Maximum n-hop Shortest Path problem that considers resource sharing. We prove their NP-completeness by reducing from the Disjoint-Connecting-Path Problem and Widest path with the Linear Capacity Constraints problem, respectively.

  4. REMOTE DETECTION OF INTERNAL PIPELINE CORROSION USING FLUIDIZED SENSORS

    SciTech Connect (OSTI)

    Narasi Sridhar; Garth Tormoen; Ashok Sabata

    2005-10-31

    Pipelines present a unique challenge to monitoring because of the great geographical distances they cover, their burial depth, their age, and the need to keep the product flowing without much interruption. Most other engineering structures that require monitoring do not pose such combined challenges. In this regard, a pipeline system can be considered analogous to the blood vessels in the human body. The human body has an extensive ''pipeline'' through which blood and other fluids are transported. The brain can generally sense damage to the system at any location and alert the body to provide temporary repair, unless the damage is severe. This is accomplished through a vast network of fixed and floating sensors combined with a vast and extremely complex communication/decision making system. The project described in this report mimics the distributed sensor system of our body, albeit in a much more rudimentary fashion. Internal corrosion is an important factor in pipeline integrity management. At present, the methods to assess internal corrosion in pipelines all have certain limitations. In-line inspection tools are costly and cannot be used in all pipelines. Because there is a significant time interval between inspections, any impact due to upsets in pipeline operations can be missed. Internal Corrosion Direct Assessment (ICDA) is a procedure that can be used to identify locations of possible internal corrosion. However, the uncertainties in the procedure require excavation and location of damage using more detailed inspection tools. Non-intrusive monitoring techniques can be used to monitor internal corrosion, but these tools also require pipeline excavation and are limited in the spatial extent of corrosion they can examine. Therefore, a floating sensor system that can deposit at locations of water accumulation and communicate the corrosion information to an external location is needed. To accomplish this, the project is divided into four main tasks related to wireless data transmission, corrosion sensor development, sensor system motion and delivery, and consideration of other pipeline operations issues. In the first year of the program, focus was on sensor development and wireless data transmission. The second year of the program, which was discontinued due to funding shortfall, would have focused on further wireless transmission development, packaging of sensor on wireless, and other operational issues. Because, the second year funding has been discontinued, recommendations are made for future studies.

  5. REALTIME MONITORING OF PIPELINES FOR THIRD-PARTY CONTACT

    SciTech Connect (OSTI)

    Gary L. Burkhardt

    2005-12-31

    Third-party contact with pipelines (typically caused by contact with a digging or drilling device) can result in mechanical damage to the pipe, in addition to coating damage that can initiate corrosion. Because this type of damage often goes unreported and can lead to eventual catastrophic failure of the pipe, a reliable, cost-effective method is needed for monitoring the pipeline and reporting third-party contact events. The impressed alternating cycle current (IACC) pipeline monitoring method developed by Southwest Research Institute (SwRI) consists of impressing electrical signals on the pipe by generating a time-varying voltage between the pipe and the soil. The signal voltage between the pipe and ground is monitored continuously at receiving stations located some distance away. Third-party contact to the pipe that breaks through the coating (thus resulting in a signal path to ground) changes the signal received at the receiving stations. The IACC method was shown to be a viable method that can be used to continuously monitor pipelines for third-party contact. Electrical connections to the pipeline can be made through existing cathodic protection (CP) test points without the need to dig up the pipe. The instrumentation is relatively simple, consisting of (1) a transmitting station with a frequency-stable oscillator and amplifier and (2) a receiving station with a filter, lock-in amplifier, frequency-stable oscillator, and remote reporting device (e.g. cell phone system). Maximum distances between the transmitting and receiving stations are approximately 1.61 km (1 mile), although the length of pipeline monitored can be twice this using a single transmitter and one receiver on each side (since the signal travels in both directions). Certain conditions such as poor pipeline coatings or strong induced 60-Hz signals on the pipeline can degrade IACC performance, so localized testing should be performed to determine the suitability for an IACC installation at a given location. The method can be used with pipelines having active CP systems in place without causing interference with operation of the CP system. The most appropriate use of IACC is monitoring of localized high-consequence areas where there is a significant risk of third-party contact (e.g. construction activity). The method also lends itself to temporary, low-cost installation where there is a short-term need for monitoring.

  6. Leakage Risk Assessment of CO2 Transportation by Pipeline at the Illinois Basin Decatur Project, Decatur, Illinois

    E-Print Network [OSTI]

    Mazzoldi, A.

    2014-01-01

    2002). Internal pipeline corrosion is an important cause ofpipelines, and is commonly referred to as sour corrosion (the corrosion rate in an operating dry CO 2 pipeline amounts

  7. Blending Hydrogen into Natural Gas Pipeline Networks: A Review of Key Issues

    Fuel Cell Technologies Publication and Product Library (EERE)

    This study assesses the potential to deliver hydrogen through the existing natural gas pipeline network as a hydrogen and natural gas mixture to defray the cost of building dedicated hydrogen pipeline

  8. Alternatives for reducing the environmental risks associated with natural disasters and their effects on pipelines

    E-Print Network [OSTI]

    Wellborn, Michael Wayne

    1996-01-01

    Past pipeline failure reports have typically focused on corrosion and third party related events. However, natural disasters pose a substantial risk to pipeline integrity as well. Therefore, it was the objective of this thesis to analyze the risks...

  9. Implicit Filtering for Constrained Optimization and Applications to Problems in the Natural Gas Pipeline

    E-Print Network [OSTI]

    Kelley, C. T. "Tim"

    Pipeline Industry 1 Alton Patrick Department of Mathematics Center for Research in Scientific Computation Application of IFFCO to Optimization of Natural Gas Pipelines 12 4 Hidden Constrants 15 4.1 Definition

  10. Characterization of Protein Structure and Function at Genome Scale Using a Computational Prediction Pipeline

    E-Print Network [OSTI]

    Prediction Pipeline Dong Xu1 *, Dongsup Kim1 , Phuongan Dam1 , Manesh Shah1 , Edward C. Uberbacher1 Pipeline. Keywords: protein structure prediction; fold recognition; threading; genome annotation; structure

  11. Hydrogen Pipeline Material Testing We provide critical data, measurement methods and models that enable safe

    E-Print Network [OSTI]

    ENERGY Hydrogen Pipeline Material Testing Facility Objective We provide critical data, measurement methods and models that enable safe and economical transport, delivery and storage of hydrogen fuel predictions about the safe operating limits of pipelines carrying pressurized gaseous hydrogen, thereby

  12. Black Radicals Make for Bad Citizens: Undoing the Myth of the School to Prison Pipeline

    E-Print Network [OSTI]

    Sojoyner, Damien M

    2013-01-01

    R. W. (2007). Golden gulag: Prisons, surplus, crisis, andI. (2012, December 13). Prison pipeline hits Black studentsT. (2010). The school-to-prison pipeline: Structuring legal

  13. Behavioral modeling and digital calibration of pipeline analog to digital converters

    E-Print Network [OSTI]

    Bilhan, Erkan

    2001-01-01

    This research focuses on digital calibration of pipeline analog to digital converters (ADCs) and also modeling of error sources and design parameters of pipeline ADCs. Modern applications such as communications systems require high resolution ADCs...

  14. RESEARCH Open Access The SAAP pipeline and database: tools to analyze

    E-Print Network [OSTI]

    Martin, Andrew C.R.

    RESEARCH Open Access The SAAP pipeline and database: tools to analyze the impact and predict a new analysis pipeline and web interface. Results of machine learning using the structural analysis

  15. Experiments to Separate the Effect of Texture on Anisotropy of Pipeline Steel

    E-Print Network [OSTI]

    Cambridge, University of

    Experiments to Separate the Effect of Texture on Anisotropy of Pipeline Steel M. S. Jooa , D the anisotropy of Charpy test energy. Keywords: pipeline steel, anisotropy, crystallographic texture, memory

  16. Ce-MXRF: the power of separation with bench top element sensitive detection

    SciTech Connect (OSTI)

    Miller, T. C. (Thomasin C.); Joseph, M. R. (Martha R.); Havrilla, G. J. (George J.)

    2002-01-01

    Capillary electrophoresis (CE) is a proven separation technique that offers highly efficient separation, rapid analysis, and minute sample consumption. When combined with a element specific detection scheme, it can be used for chemical speciation of biologically and environmentally relevant species such as metal containing proteins. In this study, a new tool was developed for separation and elemental detection. Specifically, a simple CE apparatus was constructed using a thin-walled fused Si capillary and interfaced with a bench top micro x-ray fluorescence (MXRF) system. X-ray excitation and detection of the separated sample volumes was performed using an EDAX Eagle II micro x-ray fluorescence system equipped with a Rh target excitation source and a SiLi detector. It was demonstrated that the system could be used for the separation and detection of two metals from one another, specifically Cu{sup 2+} and Co{sup 2+}. Free Co{sup 2+} could also be isolated from Co{sup 2+} bound to cyanocobalamin (Vitamin B-12). Other systems that were explored were the separation of two organics, ferritin from cyanocobalamin as well as the separation of the different Cu and Zn isoforms of metallothinein. CE-MXRF was also used to separate the important serum isoforms of transferrin. Direct comparisons were made between CE-MXRF system and other elemental separation techniques such as CE-PIXE, CE-synchrotron-XRF, and CE-ICPMS.

  17. Bench-scale vitrification studies with Savannah River Site mercury contaminated soil

    SciTech Connect (OSTI)

    Cicero, C.A.; Bickford, D.F.

    1995-12-31

    The Savannah River Technology Center (SRTC) has been charted by the Department of Energy (DOE)--Office of Technology Development (OTD) to investigate vitrification technology for the treatment of Low Level Mixed Wastes (LLMW). In fiscal year 1995, mercury containing LLMW streams were targeted. In order to successfully apply vitrification technology to mercury containing LLMW, the types and quantities of glass forming additives necessary for producing homogeneous glasses from the wastes have to be determined and the treatment for the mercury portion must also be determined. Selected additives should ensure that a durable and leach resistant waste form is produced, while the mercury treatment should ensure that hazardous amounts of mercury are not released into the environment. The mercury containing LLMW selected for vitrification studies at the SRTC was mercury contaminated soil from the TNX pilot-plant facility at the Savannah River Site (SRS). Samples of this soil were obtained so bench-scale vitrification studies could be performed at the SRTC to determine the optimum waste loading obtainable in the glass product without sacrificing durability and leach resistance. Vitrifying this waste stream also required offgas treatment for the capture of the vaporized mercury.

  18. 100 Area soil washing: Bench scale tests on 116-F-4 pluto crib soil

    SciTech Connect (OSTI)

    Field, J.G.

    1994-06-10

    The Pacific Northwest Laboratory conducted a bench-scale treatability study on a pluto crib soil sample from 100 Area of the Hanford Site. The objective of this study was to evaluate the use of physical separation (wet sieving), treatment processes (attrition scrubbing, and autogenous surface grinding), and chemical extraction methods as a means of separating radioactively-contaminated soil fractions from uncontaminated soil fractions. The soil washing treatability study was conducted on a soil sample from the 116-F-4 Pluto Crib that had been dug up as part of an excavation treatability study. Trace element analyses of this soil showed no elevated concentrations above typically uncontaminated soil background levels. Data on the distribution of radionuclide in various size fractions indicated that the soil-washing tests should be focused on the gravel and sand fractions of the 116-F-4 soil. The radionuclide data also showed that {sup 137}Cs was the only contaminant in this soil that exceeded the test performance goal (TPG). Therefore, the effectiveness of subsequent soil-washing tests for 116-F-4 soil was evaluated on the basis of activity attenuation of {sup 137}Cs in the gravel- and sand-size fractions.

  19. A Dredging Knowledge-Base Expert System for Pipeline Dredges with Comparison to Field Data

    E-Print Network [OSTI]

    Wilson, Derek Alan

    2011-02-22

    . . . . . . . . . . . . . . . . . . . 21 B. Dredge Pump Cavitation . . . . . . . . . . . . . . . . . . . 24 C. Pumps in Series . . . . . . . . . . . . . . . . . . . . . . . . 27 D. Pump Performance Metrics . . . . . . . . . . . . . . . . . 28 E. Pipeline Hydraulics Summary...

  20. Emptying of Large-Scale Pipeline by Pressurized Air Janek Laanearu, Ph.D.1

    E-Print Network [OSTI]

    Tijsseling, A.S.

    occur (gravity-driven emptying of the pipeline due to siphon only is not analyzed here). The primary

  1. Isolation valve selections play important role in pipelining

    SciTech Connect (OSTI)

    Hingoraney, R.; Goto, D.N. [Saudi Aramco, Dhahran (Saudi Arabia)

    1995-08-01

    Isolation valves are an integral part of every pipeline and play an important role in safe and proper operation. For almost every project, pipeline designers wrestle with choosing between the through-conduit gate valves and ball valves and their associated actuating mechanisms. Complicating this selection process are variables such as individual preferences and the lack of broad-based operating experience. As expected, there is no single valve and actuator combination that is correct for every pipeline or every application. Variables which must be considered and specifically evaluated for each valve installation include: operating characteristics, function, location, process fluid, materials options, space availability, maintenance, repair capability, delivery schedule, and costs. This paper reviews these issues.

  2. Alaskan Natural Gas Pipeline Developments (released in AEO2007)

    Reports and Publications (EIA)

    2007-01-01

    The Annual Energy Outlook 2007 reference case projects that an Alaska natural gas pipeline will go into operation in 2018, based on the Energy Information Administration's current understanding of the projects time line and economics. There is continuing debate, however, about the physical configuration and the ownership of the pipeline. In addition, the issue of Alaskas oil and natural gas production taxes has been raised, in the context of a current market environment characterized by rising construction costs and falling natural gas prices. If rates of return on investment by producers are reduced to unacceptable levels, or if the project faces significant delays, other sources of natural gas, such as unconventional natural gas production and liquefied natural gas imports, could fulfill the demand that otherwise would be served by an Alaska pipeline.

  3. Development Of A Centrifugal Hydrogen Pipeline Gas Compressor

    SciTech Connect (OSTI)

    Di Bella, Francis A.

    2015-04-16

    Concepts NREC (CN) has completed a Department of Energy (DOE) sponsored project to analyze, design, and fabricate a pipeline capacity hydrogen compressor. The pipeline compressor is a critical component in the DOE strategy to provide sufficient quantities of hydrogen to support the expected shift in transportation fuels from liquid and natural gas to hydrogen. The hydrogen would be generated by renewable energy (solar, wind, and perhaps even tidal or ocean), and would be electrolyzed from water. The hydrogen would then be transported to the population centers in the U.S., where fuel-cell vehicles are expected to become popular and necessary to relieve dependency on fossil fuels. The specifications for the required pipeline hydrogen compressor indicates a need for a small package that is efficient, less costly, and more reliable than what is available in the form of a multi-cylinder, reciprocating (positive displacement) compressor for compressing hydrogen in the gas industry.

  4. Bench-scale system design to screen catalyst-coated fabric filters for simultaneous NO{sub x} and particulate control

    SciTech Connect (OSTI)

    Ness, S.R.; Ludlow, D.K. [Univ. of North Dakota, Grand Forks, ND (United States)

    1995-12-31

    A bench-scale system was constructed at the Energy and Environmental Research Center (EERC) to screen performance of various types of V/Ti catalyst-coated, high-temperature, fabric filters manufactured at Owens-Corning, Inc. (OCF). This product is targeted for use in utility and industrial facilities for simultaneous NO{sub x} and particulate control. Described in this paper are the bench-scale system design, operation, and validation of the data produced. 9 refs., 3 figs.

  5. A Pipelined Karatsuba-Ofman Multiplier over GF(397 Amenable for Pairing Computation

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    A Pipelined Karatsuba-Ofman Multiplier over GF(397 ) Amenable for Pairing Computation Nidia Cortez several field multiplications need to be computed at once, we decided to design a k-stage pipeline four-stage pipeline design can perform more than one field mul- tiplication per clock cycle. When

  6. Halide: A Language and Compiler for Optimizing Parallelism, Locality, and Recomputation in Image Processing Pipelines

    E-Print Network [OSTI]

    Reif, Rafael

    Processing Pipelines Jonathan Ragan-Kelley MIT CSAIL Connelly Barnes Adobe Andrew Adams MIT CSAIL Sylvain Paris Adobe Frdo Durand MIT CSAIL Saman Amarasinghe MIT CSAIL Abstract Image processing pipelines of a pipeline and an optimized one is often an order of magnitude. Efficient implementations require

  7. FIFO Sizing for High-Performance Pipelines Cristian Soviani and Stephen A. Edwards

    E-Print Network [OSTI]

    FIFO Sizing for High-Performance Pipelines Cristian Soviani and Stephen A. Edwards Columbia University, New York {soviani, sedwards}@cs.columbia.edu Abstract Performance-critical pipelines--such as a packet processing pipeline in a network device--are built from a sequence of simple processing modules

  8. Assessment of the Behavior of Buried Concrete Pipelines Subjected to Ground Rupture: Experimental Study

    E-Print Network [OSTI]

    Lynch, Jerome P.

    Assessment of the Behavior of Buried Concrete Pipelines Subjected to Ground Rupture: Experimental: Rapid assessment of damage to buried pipelines from earthquake-induced ground deformation is a crucial for buried concrete pipelines subjected to ground deformation. A custom-designed sensing strategy

  9. On the Problem of Allocating Multicore Virtual Resources to Real-Time Task Pipelines

    E-Print Network [OSTI]

    Lipari, Giuseppe

    1 On the Problem of Allocating Multicore Virtual Resources to Real-Time Task Pipelines Giuseppe--Real-time applications that process streams of data can be modelled by a pipeline of tasks, to be executed on a multi-processor system. The pipeline is periodically activated, and each instance must be completed before an end

  10. Designing soft-edge flip-flop-based linear pipelines operating in multiple supply voltage regimes$

    E-Print Network [OSTI]

    Pedram, Massoud

    Designing soft-edge flip-flop-based linear pipelines operating in multiple supply voltage regimes-flop Pipelined circuits design Near-threshold computing Process variation a b s t r a c t Soft-edge flip-flop (SEFF) based pipelines can improve the performance and energy efficiency of circuits operating

  11. The Construction and Maintenance Plan for a Grand Banks Multi-Purpose Pipeline

    E-Print Network [OSTI]

    Bruneau, Steve

    The Construction and Maintenance Plan for a Grand Banks Multi-Purpose Pipeline D.W. (Don) Wilson, Director, North Atlantic Pipeline Partners, L.P. NOIA 2000 Conference June, 2000 #12;Grand Banks Multi-Purpose Pipeline Route January 2000 Grand Banks of Newfoundland Newfoundland Come by Chance St. John's Argentia 50o

  12. S-box pipelining using genetic algorithms for high-throughput AES implementations: How

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    S-box pipelining using genetic algorithms for high-throughput AES implementations: How fast can we. In this manuscript, we explore how Genetic Algorithms (GAs) can be used for pipelining the AES substitution box based the implementation area [5,6]. However, when considering fast hardware implementations, pipelining is an obvious

  13. Herschel DP Workshop ESAC, Madrid, E, 2008 Dec 4 page 1 HIFI Pipelines and Data Products

    E-Print Network [OSTI]

    Boogert, Adwin

    Herschel DP Workshop ­ ESAC, Madrid, E, 2008 Dec 4 page 1 HIFI Pipelines and Data Products HIFI Pipelines and Data Products Adwin Boogert, NHSC/IPAC, Pasadena, CA, USA Thanks to: Pat Morris, Carolyn Mc Workshop ­ ESAC, Madrid, E, 2008 Dec 4 page 2 HIFI Pipelines and Data Products Menu ·HIFI Instrument

  14. ENSC 283: Friction and Minor Losses in Pipelines School of Engineering Science

    E-Print Network [OSTI]

    Bahrami, Majid

    ENSC 283: Friction and Minor Losses in Pipelines 1 School of Engineering Science Mechatronics and Minor Losses in Pipelines 2 School of Engineering Science Mechatronics Systems Engineering 1 Laboratory Figure 1- Components of experimental apparatus. #12;ENSC 283: Friction and Minor Losses in Pipelines 3

  15. 20-Stage Pipelined ADC with Radix-Based Calibration Chong Kyu Yun

    E-Print Network [OSTI]

    Moon, Un-Ku

    20-Stage Pipelined ADC with Radix-Based Calibration by Chong Kyu Yun A THESIS submitted to Oregon comments on the pipelined ADC as well as a wide range of subjects in the analog field. Thanks to Dong......................................................................................................1 2. PIPELINED ARCHITECTURE

  16. Experimental study on the behavior of segmented buried concrete pipelines subject to ground movements

    E-Print Network [OSTI]

    Michalowski, Radoslaw L.

    Experimental study on the behavior of segmented buried concrete pipelines subject to ground of Civil Engineering, Merrimack College, MA ABSTRACT Seismic damage to buried pipelines is mainly caused. In particular, a pipeline crossing the fault plane is subjected to significant bending, shear, and axial forces

  17. The Demand Bound Function Interface of Distributed Sporadic Pipelines of Tasks Scheduled by EDF

    E-Print Network [OSTI]

    Lipari, Giuseppe

    The Demand Bound Function Interface of Distributed Sporadic Pipelines of Tasks Scheduled by EDF and analyzing a DRE can be reduced by applying a component-based methodology: each pipeline can be seen different steps: 1) derivation of the temporal interface of a component pipeline; 2) analysis of the whole

  18. Transparent Mode Flip-Flops for Collapsible Pipelines Eric L. Hill and Mikko H. Lipasti

    E-Print Network [OSTI]

    Lipasti, Mikko H.

    Transparent Mode Flip-Flops for Collapsible Pipelines Eric L. Hill and Mikko H. Lipasti University of Wisconsin - Madison {elhill, mikko}@ece.wisc.edu Abstract Prior work has shown that collapsible pipelining% of the dynamic power in modern high performance microprocessors. Previous collapsible pipeline proposals either

  19. Pipeline for the Creation of Surface-based Averaged Brain Atlases

    E-Print Network [OSTI]

    Menzel, Randolf - Institut fr Biologie

    Pipeline for the Creation of Surface-based Averaged Brain Atlases Anja Ku Hans-Christian Hege from different image modalities and experiments. In this paper we describe a standardized pipeline of individuals. The pipeline consists of the major steps imaging and preprocessing, segmentation, averaging

  20. Mapping pipeline skeletons onto heterogeneous platforms Anne Benoit and Yves Robert

    E-Print Network [OSTI]

    Benoit, Anne

    Mapping pipeline skeletons onto heterogeneous platforms Anne Benoit and Yves Robert LIP, ENS Lyon mapping of the application. In this paper, we discuss the mapping of pipeline skeletons onto different, Fully Heterogeneous platforms. We assume that a pipeline stage must be mapped on a single processor