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Sample records for vancouver bc v6t

  1. Vancouver, Canada: Energy Resources | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    in Vancouver, Canada 4 References Registered Research Institutions in Vancouver, Canada NRC Institute for Fuel Cell Innovation Registered Energy Companies in Vancouver, Canada...

  2. Vancouver, Washington: Energy Resources | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Vancouver, Washington: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 45.6387281, -122.6614861 Show Map Loading map... "minzoom":false,"mappin...

  3. Geocost-Bc

    Energy Science and Technology Software Center

    1981-03-24

    GEOCOST calculates the cost of generating electricity from geothermal energy. The version of GEOCOST in this release, GEOCOST-BC, simulates the production of electricity using a binary fluid cycle based upon a hydrothermal resource.

  4. 2009 Solid-State Lighting Vancouver Manufacturing Workshop Highlights |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy 09 Solid-State Lighting Vancouver Manufacturing Workshop Highlights 2009 Solid-State Lighting Vancouver Manufacturing Workshop Highlights Well over 150 lighting industry leaders gathered in Vancouver, Washington, on June 24-25, 2009, for the second DOE Solid-State Lighting (SSL) Manufacturing Workshop. The primary purpose was to review and refine a "strawman" roadmap for SSL manufacturing, based on insights and recommendations from the first workshop, which was

  5. Search for: All records | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    Schuster, M D (1) TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, V6T 2A3 (1) ... P. ; TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, V6T 2A3 The exact ...

  6. SREL Reprint #3298

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    8 Development and characterization of twenty-five microsatellite markers for the longnose dace (Cyprinidae: Rhinichthys) using paired-end Illumina shotgun sequencing Rochelle Beasley1, Stacey L. Lance1, Jennifer A. Ruskey2, and Eric B. Taylor2 1Savannah River Ecology Laboratory, University of Georgia, Aiken, SC 29802, USA 2Department of Zoology, Biodiversity Research Centre and Beaty Biodiversity Museum, University of British Columbia, 6270 University Blvd., Vancouver, BC V6T 1Z4, Canada

  7. A-BC Exact Coupled Channel Scattering

    Energy Science and Technology Software Center

    1992-03-02

    VIVAS2 computes the scattering S-matrix and transition probabilities for the collision of an S-state atom, A, with a sigma-state diatomic molecule, BC.

  8. ARM - Campaign Instrument - tc-bc

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    govInstrumentstc-bc Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Total Carbon and Black Carbon Concentrations on Filter Samples (TC-BC) Instrument Categories Aerosols, Atmospheric Carbon Campaigns Aerosol IOP [ Download Data ] Southern Great Plains, 2003.05.01 - 2003.05.31 Primary Measurements Taken The following measurements are those considered scientifically relevant. Refer to the datastream (netcdf) file headers for

  9. Synthesis of bulk superhard semiconducting B-C material (Journal...

    Office of Scientific and Technical Information (OSTI)

    Synthesis of bulk superhard semiconducting B-C material Citation Details In-Document Search Title: Synthesis of bulk superhard semiconducting B-C material A bulk composite ...

  10. Ferro- and antiferro-magnetism in (Np, Pu)BC

    SciTech Connect

    Klimczuk, T.; Kozub, A. L.; Griveau, J.-C.; Colineau, E.; Wastin, F.; Falmbigl, M.; Rogl, P.

    2015-04-01

    Two new transuranium metal boron carbides, NpBC and PuBC, have been synthesized. Rietveld refinements of powder XRD patterns of (Np,Pu)BC confirmed in both cases isotypism with the structure type of UBC. Temperature dependent magnetic susceptibility data reveal antiferromagnetic ordering for PuBC below T{sub N} = 44 K, whereas ferromagnetic ordering was found for NpBC below T{sub C} = 61 K. Heat capacity measurements prove the bulk character of the observed magnetic transition for both compounds. The total energy electronic band structure calculations support formation of the ferromagnetic ground state for NpBC and the antiferromagnetic ground state for PuBC.

  11. New Whole-House Solutions Case Study: New Tradition Homes, Vancouver, WA

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Tradition Homes of Vancouver, Washington, partnered with Building America to design homes that achieved HERS scores of 65 or less. The homes were designed with ducts in conditioned space and incorporated moisture management techniques for durability in the damp Northwest climate. For homes built with crawlspaces, New Tradition employs extensive grading so that the ground slopes away from the home on all sides. Below grade, a sloped trench is dug diagonally across the crawlspace that exits to a

  12. Hanford Site - 100-BC-5 | Department of Energy

    Office of Environmental Management (EM)

    BC-5 Hanford Site - 100-BC-5 July 1, 2014 - 12:00pm Addthis US Department of Energy Groundwater Database Groundwater Master Report InstallationName, State: Hanford Site Responsible DOE Office: Office of Environmental Management Plume Name: 100-BC-5 Remediation Contractor: CHPRC PBS Number: 30 Report Last Updated: July 2014 with CY2013 data Contaminants Halogenated VOCs/SVOCs Present?: Yes VOC Name Concentration (ppb) Regulatory Driver Cleanup Requirement TCE 2.8 No Metal Name Metal Concentration

  13. 100-B/C Target Analyte List Development for Soil

    SciTech Connect

    R.W. Ovink

    2010-03-18

    This report documents the process used to identify source area target analytes in support of the 100-B/C remedial investigation/feasibility study addendum to DOE/RL-2008-46. This report also establishes the analyte exclusion criteria applicable for 100-B/C use and the analytical methods needed to analyze the target analytes.

  14. Microsoft Word - NiR.doc

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Side-on Cu-Nitrosyl Coordination by Nitrite Reductase Elitza I. Tocheva and Michael E. P. Murphy Department of Microbiology & Immunology, The University of British Columbia, Vancouver, BC, Canada V6T 1Z3. Nitric oxide (NO) is one of the smallest and simplest biologically active molecules. In mammals, NO is produced from arginine by isoforms of nitric oxide synthase, and it func- tions in signal transduction and as a cytoprotective or cytotoxic agent. In bacteria, NO is produced by nitrite

  15. Painted Hills B&C Wind Farm I | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Painted Hills B&C Wind Farm I Jump to: navigation, search Name Painted Hills B&C Wind Farm I Facility Painted Hills B&C Sector Wind energy Facility Type Commercial Scale Wind...

  16. BC Transit Fuel Cell Bus Project: Evaluation Results Report

    SciTech Connect

    Eudy, L.; Post, M.

    2014-02-01

    This report evaluates a fuel cell electric bus demonstration led by British Columbia Transit (BC Transit) in Whistler, Canada. BC Transit is collaborating with the California Air Resources Board and the U.S. Department of Energy's National Renewable Energy Laboratory to evaluate the buses in revenue service. This evaluation report covers two years of revenue service data on the buses from April 2011 through March 2013.

  17. CHPRC0909-33 BC Control Facts.indd

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Aerial Radiological Surveys at Hanford A Department of Energy Recovery Act Project An innovative approach to radiological surveys is being used to evaluate shallow soil contamination near the center of the Hanford Site, an area known as the Central Plateau. As a result of animal intrusion and wind dispersion of contaminants originating in the BC Cribs and Trenches, shallow soil contamination across the adjacent site known as the BC Controlled Area, located south of Hanford's 200 East Area. The

  18. BC Transit Fuel Cell Bus Project Evaluation Results: Second Report

    SciTech Connect

    Eudy, L.; Post, M.

    2014-09-01

    Second report evaluating a fuel cell electric bus (FCEB) demonstration led by British Columbia Transit (BC Transit) in Whistler, Canada. BC Transit is collaborating with the California Air Resources Board and the U.S. Department of Energy's National Renewable Energy Laboratory to evaluate the buses in revenue service. NREL published its first report on the demonstration in February 2014. This report is an update to the previous report; it covers 3 full years of revenue service data on the buses from April 2011 through March 2014 and focuses on the final experiences and lessons learned.

  19. Synthesis of bulk superhard semiconducting B-C material

    SciTech Connect

    Solozhenko, Vladimir L.; Dubrovinskaia, Natalia A.; Dubrovinsky, Leonid S.

    2004-08-30

    A bulk composite superhard material was synthesized from graphitelike BC{sub 3} at 20 GPa and 2300 K using a multianvil press. The material consists of intergrown boron carbide B{sub 4}C and B-doped diamond with 1.8 at.%B. The material exhibits semiconducting behavior and extreme hardness comparable with that of single-crystal diamond.

  20. Painted Hills B&C Wind Farm II | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    II Jump to: navigation, search Name Painted Hills B&C Wind Farm II Facility Painted Hills B&C Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service...

  1. BC Hydro Brings Energy Savings to Low-Income Families in Canada...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    BC Hydro Brings Energy Savings to Low-Income Families in Canada BC Hydro Brings Energy Savings to Low-Income Families in Canada The number of British Columbia, Canada, households ...

  2. BC Hydro Brings Energy Savings to Low-Income Families in Canada |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy BC Hydro Brings Energy Savings to Low-Income Families in Canada BC Hydro Brings Energy Savings to Low-Income Families in Canada The number of British Columbia, Canada, households eligible for Better Buildings Residential Network member BC Hydro's Energy Conservation Assistance Program (ECAP) just doubled. British Columbia Energy Minister Bill Bennett recently announced an increase in the low-income qualification cutoff for BC Hydro's free home energy-saving kits and

  3. A hybrid fast-multipole technique for space-charge tracking with...

    Office of Scientific and Technical Information (OSTI)

    Authors: Jones, F. W. 1 + Show Author Affiliations TRIUMF, 4004 Wesbrook Mall, Vancouver, V6T 2A3 (Canada) Publication Date: 1998-11-05 OSTI Identifier: 21202286 Resource Type: ...

  4. Search for: All records | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    ... Vancouver, British Columbia, V6T2A3 ; Green, K. L. ; Bangay, J. ; Varela, A. Diaz ; ... of stringent limits on, low-energy branches between potential multi-phonon levels. ...

  5. Study of the B+c ? J/?D+s and B+c ? J/?D*s+ decays with the ATLAS detector

    DOE PAGES [OSTI]

    Aad, G.; Abbott, B.; Abdallah, J.; Abdinov, O.; Aben, R.; Abolins, M.; AbouZeid, O. S.; Abramowicz, H.; Abreu, H.; Abreu, R.; et al

    2016-01-05

    The decays B+c ? J/?D+s and B+c ? J/?D*s+ are studied with the ATLAS detector at the LHC using a dataset corresponding to integrated luminosities of 4.9 and 20.6 fb1 of pp collisions collected at centre-of-mass energies ?s = 7 TeV and 8 TeV, respectively. Furthermore, signal candidates are identified through J/? ? ?+?- and D(*)+s ? ??+(?/?0) decays.

  6. Measurement of the ratio of the production cross sections times branching fractions of Bc ? J/??and B ? J/? K and B(Bc? J/? ???-/+)/B(Bc ? J/? ?) in pp collisions at ?s = 7 TeV

    DOE PAGES [OSTI]

    Khachatryan, V.

    2015-01-13

    The ratio of the production cross sections times branching fractions (?(Bc) B(Bc ? J/??))/(?(B) B(B ? J/?K) is studied in proton-proton collisions at a center-of-mass energy of 7 TeV with the CMS detector at the LHC. The kinematic region investigated requires Ba,sub>c and Bmesons with transverse momentum p? > 15 GeV and rapidity |y| -1. The ratio is determined to be [0.48 0.05 (stat) 0.03(syst) 0.05 (?Bc)]% The J/????-/+ decay mode is also observed in the same data sample. Using a model-independent method developed tomoremeasure the efficiency given the presence of resonant behaviour in the three-pion system, the ratio of the branching fractions J/? ???-/+)/B(Bc is measured to be 2.55 0.80(stat) 0.33(syst) +0.04-0.01 (?Bc), consistent with the previous LHCb result.less

  7. Genome analysis and physiological comparison of Alicycliphilus denitrificans strains BC and K601T

    SciTech Connect

    Oosterkamp, Margreet J.; Veuskens, Teun; Saia, Flavia Talarico; Weelink, Sander A.B.; Goodwin, Lynne A.; Daligault, Hajnalka E.; Bruce, David; Detter, J. Chris; Tapia, Roxanne; Han, Cliff; Land, Miriam L; Hauser, Loren John; Langenhoff, A. M.; Gerritse, Jan; Van Berkel, Willem J. H.; Pieper, Dietmar; Junca, Howard; Smidt, Hauke; Schraa, Gosse; Davids, Mark; Schaap, Peter J; Plugge, Caroline M.; Stams, Alfons J. M.

    2013-01-01

    The genomes of the Betaproteobacteria Alicycliphilus denitrificans strains BC and K601T have been sequenced to get insight into the physiology of the two strains. Strain BC degrades benzene with chlorate as electron acceptor. The cyclohexanol-degrading denitrifying strain K601T is not able to use chlorate as electron acceptor, while strain BC cannot degrade cyclohexanol. The 16S rRNA sequences of strains BC and K601T are identical and the fatty acid methyl ester patterns of the strains are similar. Basic Local Alignment Search Tool (BLAST) analysis of predicted open reading frames of both strains showed most hits with Acidovorax sp. JS42, a bacterium that degrades nitro-aromatics. The genomes include strain-specific plasmids (pAlide201 in strain K601T and pAlide01 and pAlide02 in strain BC). Key genes of chlorate reduction in strain BC were located on a 120 kb megaplasmid (pAlide01), which was absent in strain K601T. Genes involved in cyclohexanol degradation were only found in strain K601T. Benzene and toluene are degraded via oxygenase-mediated pathways in both strains. Genes involved in the meta-cleavage pathway of catechol are present in the genomes of both strains. Strain BC also contains all genes of the ortho-cleavage pathway. The large number of mono- and dioxygenase genes in the genomes suggests that the two strains have a broader substrate range than known thus far.

  8. Synthesis of new Diamond-like B-C Phases under High Pressure and Temperatures

    SciTech Connect

    Ming, L. C.; Zinin, P. V.; Sharma, S. K.

    2014-04-22

    A cubic BC3 (c-BC3) phase was synthesized by direct transformation from graphitic phases at a pressure of 39 GPa and temperature of 2200 K in a laser-heated diamond anvil cell (DAC). A combination of x-ray diffraction (XRD), electron diffraction (ED), transmission electron microscopy (TEM) imaging, and electron energy loss spectroscopy (EELS) measurements lead us to conclude that the obtained phase is hetero-nano-diamond, c-BC3. The EELS measurements show that the atoms inside the cubic structure are bonded by sp3 bonds.

  9. Study of the B+c → J/ΨD+s and B+c → J/ΨD*s+ decays with the ATLAS detector

    DOE PAGES [OSTI]

    Aad, G.; Abbott, B.; Abdallah, J.; Abdinov, O.; Aben, R.; Abolins, M.; AbouZeid, O. S.; Abramowicz, H.; Abreu, H.; Abreu, R.; et al

    2016-01-05

    The decays B+c → J/ΨD+s and B+c → J/ΨD*s+ are studied with the ATLAS detector at the LHC using a dataset corresponding to integrated luminosities of 4.9 and 20.6 fb–1 of pp collisions collected at centre-of-mass energies √s = 7 TeV and 8 TeV, respectively. Furthermore, signal candidates are identified through J/ψ → μ+μ- and D(*)+s → Φπ+(γ/π0) decays.

  10. BETO FY14 BC FOA Presentation for BETO 2015 Project Peer Review

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    DEPARTMENT OF ENERGY BIOENERGY TECHNOLOGIES OFFICE BETO FY14 BC FOA Overview Bryna Guriel Biochemical Conversion Technology Manager May 24, 2015 2 | Bioenergy Technologies Office eere.energy.gov FY14 BC Conversion FOAs * Biological and Chemical Upgrading for Advanced Biofuels and Products (BCU) * Renewable Carbon Fibers (RCF) 3 | Bioenergy Technologies Office eere.energy.gov BCU Overview - DE-FOA-0001085 * Sought diversification of the BETO portfolio to allow for biological, chemical and hybrid

  11. AVTA Federal Fleet PEV Readiness Data Logging and Characterization Study for the National Park Service: Fort Vancouver National Historic Site

    SciTech Connect

    Stephen Schey; Jim Francfort

    2014-03-01

    Battelle Energy Alliance, LLC, managing and operating contractor for the U.S. Department of Energy’s Idaho National Laboratory, is the lead laboratory for the U.S. Department of Energy’s Advanced Vehicle Testing. Battelle Energy Alliance, LLC contracted with Intertek Testing Services, North America (ITSNA) to collect data on federal fleet operations as part of the Advanced Vehicle Testing Activity’s Federal Fleet Vehicle Data Logging and Characterization study. The Advanced Vehicle Testing Activity study seeks to collect data to validate the use of advanced electric drive vehicle transportation. This report focuses on the Fort Vancouver National Historic Site (FVNHS) fleet to identify daily operational characteristics of select vehicles and report findings on vehicle and mission characterizations to support the successful introduction of electric vehicles (EVs) into the agencies’ fleet. Individual observations of the selected vehicles provided the basis for recommendations related to EV adoption and whether a battery electric vehicle (BEV) or plug-in hybrid electric vehicle (PHEV) (collectively plug-in electric vehicles) could fulfill the mission requirements. FVNHS identified three vehicles in its fleet for consideration. While the FVNHS vehicles conduct many different missions, only two (i.e., support and pool missions) were selected by agency management to be part of this fleet evaluation. The logged vehicles included a pickup truck and a minivan. This report will show that BEVs and PHEVs are capable of performing the required missions and providing an alternative vehicle for both mission categories, because each has sufficient range for individual trips and time available each day for charging to accommodate multiple trips per day. These charging events could occur at the vehicle’s home base, high-use work areas, or in intermediate areas along routes that the vehicles frequently travel. Replacement of vehicles in the current fleet would result in

  12. Preparing for Tomorrow's Systems: Manycore Resilience Patterns...

    Office of Scientific and Technical Information (OSTI)

    BC, Canada.; Related Information: Proposed for presentation at the International Congress on Industrial and Applied Mathematics held July 19-22, 2011 in Vancouver, BC, Canada

  13. Remedial investigation/feasibility study work plan for the 100-BC-2 operable unit, Hanford Site, Richland, Washington

    SciTech Connect

    Not Available

    1993-05-01

    This work plan and attached supporting project plans establish the operable unit setting and the objectives, procedures, tasks, and schedule for conducting the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA) remedial investigation/feasibility study (RI/FS) for the 100-BC-2 operable unit in the 100 Area of the Hanford Site. The 100 Area is one of four areas at the Hanford Site that are on the US Environmental Protection Agency`s (EPA) National Priorities List under CERCLA. The 100-BC-2 operable unit is one of two source operable units in the 100-B/C Area (Figure ES-1). Source operable units are those that contain facilities and unplanned release sites that are potential sources of hazardous substance contamination. The 100-BC-2 source operable unit contains waste sites that were formerly in the 100-BC-2, 100-BC-3, and 100-BC-4 operable units. Because of their size and geographic location, the waste sites from these two operable units were added to 100-BC-2. This allows for a more efficient and effective investigation of the remaining 100-B/C Reactor area waste sites. The investigative approach to waste sites associated with the 100-BC-2 operable unit are listed in Table ES-1. The waste sites fall into three general categories: high priority liquid waste disposal sites, low priority liquid waste disposal sites, and solid waste burial grounds. Several sites have been identified as candidates for conducting an IRM. Two sites have been identified as warranting additional limited field sampling. The two sites are the 116-C-2A pluto crib, and the 116-C-2C sand filter.

  14. BC_2

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    the J efferson Science A sso ciates for the U.S. Department of Energy Office of Science Thomas Jefferson National Accelerator Facility Jefferson Lab Operated by the J efferson Science A sso ciates for the U.S. Department of Energy Office of Science Thomas Jefferson National Accelerator Facility Jefferson Lab Operated by the J efferson Science A sso ciates for the U.S. Department of Energy Office of Science Thomas Jefferson National Accelerator Facility Jefferson Lab Operated by the J efferson

  15. Oh Canada! B.C. ratifies North America's first carbon tax

    SciTech Connect

    Peltier, R.

    2008-08-15

    British Columbia began collecting increased tax revenue on fossil fuels on July 1 with a promise to rebate those taxes through reduced income and business tax rates. This 'revenue recycling' plan makes little progress toward the province's goal to reduce CO{sub 2} emissions 33% by 2020, yet it is hailed by proponents as a legislative milestone. Others believe BC residents are victims of another governmental 'bait and switch' program. This paper examines the legislation. 2 figs.

  16. Source sector and region contributions to BC and PM2.5 in Central Asia

    DOE PAGES [OSTI]

    Kulkarni, S.; Sobhani, N.; Miller-Schulze, J. P.; Shafer, M. M.; Schauer, J. J.; Solomon, P. A.; Saide, P. E.; Spak, S. N.; Cheng, Y. F.; Denier van der Gon, H. A. C.; et al

    2015-02-18

    Particulate matter (PM) mass concentrations, seasonal cycles, source sector, and source region contributions in Central Asia (CA) are analyzed for the period April 2008–July 2009 using the Sulfur Transport and dEposition Model (STEM) chemical transport model and modeled meteorology from the Weather Research and Forecasting (WRF) model. Predicted aerosol optical depth (AOD) values (annual mean value ~0.2) in CA vary seasonally, with lowest values in the winter. Surface PM2.5 concentrations (annual mean value ~10 μg m-3) also exhibit a seasonal cycle, with peak values and largest variability in the spring/summer, and lowest values and variability in the winter (hourly valuesmore » from 2 to 90 μg m-3). Surface concentrations of black carbon (BC) (mean value ~0.1 μg m-3) show peak values in the winter. The simulated values are compared to surface measurements of AOD as well as PM2.5, PM10, BC, and organic carbon (OC) mass concentrations at two regional sites in Kyrgyzstan (Lidar Station Teplokluchenka (LST) and Bishkek). The predicted values of AOD and PM mass concentrations and their seasonal cycles are fairly well captured. The carbonaceous aerosols are underpredicted in winter, and analysis suggests that the winter heating emissions are underestimated in the current inventory. Dust, from sources within and outside CA, is a significant component of the PM mass and drives the seasonal cycles of PM and AOD. On an annual basis, the power and industrial sectors are found to be the most important contributors to the anthropogenic portion of PM2.5. Residential combustion and transportation are shown to be the most important sectors for BC. Biomass burning within and outside the region also contributes to elevated PM and BC concentrations. The analysis of the transport pathways and the variations in particulate matter mass and composition in CA demonstrates that this region is strategically located to characterize regional and intercontinental transport of

  17. Novel spin-electronic properties of BC{sub 7} sheets induced by strain

    SciTech Connect

    Xu, Lei; Dai, ZhenHong Sui, PengFei; Sun, YuMing; Wang, WeiTian

    2014-11-01

    Based on first-principles calculations, the authors have investigated the electronic and magnetic properties of BC{sub 7} sheets with different planar strains. It is found that metal–semiconductor transition appears at the biaxial strain of 15.5%, and the sheets are characteristic of spin-polarized semiconductor with a zero band-gap. The band-gap rapidly increases with strain, and reaches a maximum value of 0.60 eV at the strain of 20%. Subsequently, the band-gap decreases until the strain reaches up to 22% and shows a semiconductor-half metal transformation. It will further present metal properties until the strain is up to the maximum value of 35%. The magnetic moments also have some changes induced by biaxial strain. The numerical analysis shows that the two-dimensional distortions have great influences on the magnetic moments. The novel spin-electronic properties make BC{sub 7} sheets have potential applications in future spintronic nanodevices.

  18. Thermal evolution of the metastable r8 and bc8 polymorphs of silicon

    DOE PAGES [OSTI]

    Haberl, Bianca; Guthrie, Malcolm; Sinogeikin, Stanislav; Shen, Guoyin; Williams, James S.; Bradby, Jodie E.

    2015-01-01

    The kinetics of two metastable polymorphs of silicon under thermal annealing was investi- gated. These phases with body-centred cubic bc8 and rhombohedral r8 structures can be formed upon pressure release from metallic silicon. In the present study, these metastable polymorphs were formed by two dierent methods, via point loading and in a diamond-anvil cell. Upon thermal annealing dierent transition pathways were detected. In the point loading case, the previously reported Si-XIII formed and was conrmed as a new phase with an as yet unidentied structure. In the diamond-anvil cell case, bc8-Si transformed to the hexagonal-diamond structure at elevated pressure, consistentmore » with previous studies at ambient pressure. In contrast, r8-Si transformed directly to diamond-cubic Si at a temperature of 255C. These data were used to construct diagrams of the metastability regimes of the polymorphs formed in a diamond anvil cell and may prove useful for potential technological applications of these metastable polymorphs.« less

  19. Thermal evolution of the metastable r8 and bc8 polymorphs of silicon

    SciTech Connect

    Haberl, Bianca; Guthrie, Malcolm; Sinogeikin, Stanislav; Shen, Guoyin; Williams, James S.; Bradby, Jodie E.

    2015-01-01

    The kinetics of two metastable polymorphs of silicon under thermal annealing was investi- gated. These phases with body-centred cubic bc8 and rhombohedral r8 structures can be formed upon pressure release from metallic silicon. In the present study, these metastable polymorphs were formed by two dierent methods, via point loading and in a diamond-anvil cell. Upon thermal annealing dierent transition pathways were detected. In the point loading case, the previously reported Si-XIII formed and was conrmed as a new phase with an as yet unidentied structure. In the diamond-anvil cell case, bc8-Si transformed to the hexagonal-diamond structure at elevated pressure, consistent with previous studies at ambient pressure. In contrast, r8-Si transformed directly to diamond-cubic Si at a temperature of 255C. These data were used to construct diagrams of the metastability regimes of the polymorphs formed in a diamond anvil cell and may prove useful for potential technological applications of these metastable polymorphs.

  20. THE BC CRIBS & TRENCHES GEOPHYSICAL CHARACTERIZATION PROJECT ONE STEP FORWARD IN HANFORDS CLEANUP PROCESS

    SciTech Connect

    BENECKE, MN.W.

    2006-02-22

    A geophysical characterization project was conducted at the BC Cribs and Trenches Area, located south of 200 East at the Hanford Site. The area consists of 26 waste disposal trenches and cribs, which received approximately 30 million gallons of liquid waste from the uranium recovery process and the ferrocyanide processes associated with wastes generated by reprocessing nuclear fuel. Waste discharges to BC Cribs contributed perhaps the largest liquid fraction of contaminants to the ground in the 200 Areas. The site also includes possibly the largest inventory of Tc-99 ever disposed to the soil at Hanford with an estimated quantity of 400 Ci. Other waste constituents included high volumes of nitrate and U-238. The geophysical characterization at the 50 acre site primarily included high resolution resistivity (HRR). The resistivity technique is a non-invasive method by which electrical resistivity data are collected along linear transects, and data are presented as continuous profiles of subsurface electrical properties. The transects ranged in size from about 400-700 meters and provided information down to depths of 60 meters. The site was characterized by a network of 51 HRR lines with a total of approximately 19.7 line kilometers of data collected parallel and perpendicular to the trenches and cribs. The data were compiled to form a three-dimensional representation of low resistivity values. Low resistivity, or high conductivity, is indicative of high ionic strength soil and porewater resulting from the migration of nitrate and other inorganic constituents through the vadose zone. High spatial density soil data from a single borehole, that included coincident nitrate concentrations, electrical conductivity, and Tc-99, were used to transform the electrical resistivity data into a nitrate plume. The plume was shown to extend laterally beyond the original boundaries of the waste site and, in one area, to depths that exceeded the characterization strategy. It is

  1. Stochastic Parameterization for Light Absorption by Internally Mixed BC/dust in Snow Grains for Application to Climate Models

    SciTech Connect

    Liou, K. N.; Takano, Y.; He, Cenlin; Yang, P.; Leung, Lai-Yung R.; Gu, Y.; Lee, W- L.

    2014-06-27

    A stochastic approach to model the positions of BC/dust internally mixed with two snow-grain types has been developed, including hexagonal plate/column (convex) and Koch snowflake (concave). Subsequently, light absorption and scattering analysis can be followed by means of an improved geometric-optics approach coupled with Monte Carlo photon tracing to determine their single-scattering properties. For a given shape (plate, Koch snowflake, spheroid, or sphere), internal mixing absorbs more light than external mixing. The snow-grain shape effect on absorption is relatively small, but its effect on the asymmetry factor is substantial. Due to a greater probability of intercepting photons, multiple inclusions of BC/dust exhibit a larger absorption than an equal-volume single inclusion. The spectral absorption (0.2 – 5 um) for snow grains internally mixed with BC/dust is confined to wavelengths shorter than about 1.4 um, beyond which ice absorption predominates. Based on the single-scattering properties determined from stochastic and light absorption parameterizations and using the adding/doubling method for spectral radiative transfer, we find that internal mixing reduces snow albedo more than external mixing and that the snow-grain shape plays a critical role in snow albedo calculations through the asymmetry factor. Also, snow albedo reduces more in the case of multiple inclusion of BC/dust compared to that of an equal-volume single sphere. For application to land/snow models, we propose a two-layer spectral snow parameterization containing contaminated fresh snow on top of old snow for investigating and understanding the climatic impact of multiple BC/dust internal mixing associated with snow grain metamorphism, particularly over mountains/snow topography.

  2. Remaining Sites Verification Package for the 100-B-21:2 Subsite (100-B/C Discovery Pipeline DS-100BC-002), Waste Site Reclassification Form 2008-003

    SciTech Connect

    J. M. Capron

    2008-06-16

    The 100-B-21:2 waste site consists of the immediate area of the DS-100BC-02 pipeline. In accordance with this evaluation, the confirmatory and verification sampling results support a reclassification of this site to Interim Closed Out. The results of verification sampling show that residual contaminant concentrations do not preclude any future uses and allow for unrestricted use of shallow zone soils. The results also demonstrate that residual contaminant concentrations are protective of groundwater and the Columbia River.

  3. Inflow/outflow boundary conditions for particle-based blood flow...

    Office of Scientific and Technical Information (OSTI)

    WA (United States) Univ. of Lugano, Lugano (Switzerland); Swiss Institute of Bioinformatics, Lausanne (Switzerland) Univ. of British Columbia, Vancouver, BC (Canada) ...

  4. Emittance exchange results (Conference) | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    Resource Relation: Conference: Presented at Particle Accelerator Conference (PAC 09), Vancouver, BC, Canada, 4-8 May 2009 Research Org: Fermi National Accelerator Laboratory...

  5. The microscopic structure of charge density waves in underdoped...

    Office of Scientific and Technical Information (OSTI)

    of Liverpool, Liverpool (United Kingdom) Univ. of British Columbia, Vancouver, BC (Canada) Technical Univ. of Denmark, Lyngby (Denmark) Deutsches Elektronen-Synchrotron (DESY), ...

  6. Gravitational Instability of a Nonrotating Galaxy (Conference...

    Office of Scientific and Technical Information (OSTI)

    Resource Relation: Conference: Invited talk at Particle Accelerator Conference (PAC 09), Vancouver, BC, Canada, 4-8 May 2009 Research Org: Stanford Linear Accelerator Center (SLAC) ...

  7. Data:0149f280-821d-4e6f-bc27-501c18ec12fd | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    f-bc27-501c18ec12fd No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic...

  8. Source sector and region contributions to BC and PM2.5 in Central Asia

    SciTech Connect

    Kulkarni, S.; Sobhani, N.; Miller-Schulze, J. P.; Shafer, M. M.; Schauer, J. J.; Solomon, P. A.; Saide, P. E.; Spak, S. N.; Cheng, Y. F.; Denier van der Gon, H. A. C.; Lu, Z.; Streets, D. G.; Janssens-Maenhout, G.; Wiedinmyer, C.; Lantz, J.; Artamonova, M.; Chen, B.; Imashev, S.; Sverdlik, L.; Deminter, J. T.; Adhikary, B.; D'Allura, A.; Wei, C.; Carmichael, G. R.

    2015-02-18

    Particulate matter (PM) mass concentrations, seasonal cycles, source sector, and source region contributions in Central Asia (CA) are analyzed for the period April 2008–July 2009 using the Sulfur Transport and dEposition Model (STEM) chemical transport model and modeled meteorology from the Weather Research and Forecasting (WRF) model. Predicted aerosol optical depth (AOD) values (annual mean value ~0.2) in CA vary seasonally, with lowest values in the winter. Surface PM2.5 concentrations (annual mean value ~10 μg m-3) also exhibit a seasonal cycle, with peak values and largest variability in the spring/summer, and lowest values and variability in the winter (hourly values from 2 to 90 μg m-3). Surface concentrations of black carbon (BC) (mean value ~0.1 μg m-3) show peak values in the winter. The simulated values are compared to surface measurements of AOD as well as PM2.5, PM10, BC, and organic carbon (OC) mass concentrations at two regional sites in Kyrgyzstan (Lidar Station Teplokluchenka (LST) and Bishkek). The predicted values of AOD and PM mass concentrations and their seasonal cycles are fairly well captured. The carbonaceous aerosols are underpredicted in winter, and analysis suggests that the winter heating emissions are underestimated in the current inventory. Dust, from sources within and outside CA, is a significant component of the PM mass and drives the seasonal cycles of PM and AOD. On an annual basis, the power and industrial sectors are found to be the most important contributors to the anthropogenic portion of PM2.5. Residential combustion and transportation are shown to be the most important sectors for BC. Biomass burning within and outside the region also contributes to elevated PM and BC concentrations. The analysis of the transport pathways and the variations in particulate matter mass and composition in CA demonstrates that this region is strategically located

  9. Communication: Microsecond dynamics of the protein and water affect electron transfer in a bacterial bc{sub 1} complex

    SciTech Connect

    Martin, Daniel R.; Matyushov, Dmitry V.

    2015-04-28

    Cross-membrane electron transport between cofactors localized in proteins of mitochondrial respiration and bacterial photosynthesis is the source of all biological energy. The statistics and dynamics of nuclear fluctuations in these protein/membrane/water heterogeneous systems are critical for their energetic efficiency. The results of 13 ?s of atomistic molecular dynamics simulations of the membrane-bound bc{sub 1} bacterial complex are analyzed here. The reaction is affected by a broad spectrum of nuclear modes, with the slowest dynamics in the range of time-scales ?0.1-1.6 ?s contributing half of the reaction reorganization energy. Two reorganization energies are required to describe protein electron transfer due to dynamical arrest of protein conformations on the observation window. This mechanistic distinction allows significant lowering of activation barriers for reactions in proteins.

  10. Characterization of Sediments from the Soil Desiccation Pilot Test (SDPT) Site in the BC Cribs and Trenches Area

    SciTech Connect

    Um, Wooyong; Truex, Michael J.; Valenta, Michelle M.; Iovin, Cristian; Kutnyakov, Igor V.; Chang, Hyun-shik; Clayton, Ray E.; Serne, R. Jeffrey; Ward, Anderson L.; Brown, Christopher F.; Geiszler, Keith N.; Clayton, Eric T.; Baum, Steven R.; Smith, David M.

    2009-09-25

    This technical report documents the results of laboratory geochemical and hydrologic measurements of sediments collected from new borehole 299-E13-65 (C7047) and comparison of the results with those of nearby borehole 299-13E-62 (C5923) both drilled in the BC Cribs and Trenches Area. The total and water-leachable concentrations of key contaminants will be used to update contaminant-distribution conceptual models and to provide more data for improving baseline risk predictions and remedial alternative selections. Improved understanding of subsurface conditions and methods to remediate these principal contaminants can be also used to evaluate the application of specific technologies to other contaminants across the Hanford Site.

  11. Electrical Resistivity Correlation to Vadose Zone Sediment and Pore-Water Composition for the BC Cribs and Trenches Area

    SciTech Connect

    Serne, R. Jeffrey; Ward, Anderson L.; Um, Wooyong; Bjornstad, Bruce N.; Rucker, Dale F.; Lanigan, David C.; Benecke, Mark W.

    2009-06-01

    This technical report documents the results of geochemical and soil resistivity characterization of sediment obtained from four boreholes drilled in the BC Cribs and Trench area. Vadose zone sediment samples were obtained at a frequency of about every 2.5 ft from approximately 5 ft bgs to borehole total depth. In total, 505 grab samples and 39 six-inch long cores were obtained for characterization. The pore-water chemical composition data, laboratory-scale soil resistivity and other ancillary physical and hydrologic measurements and analyses described in this report are designed to provide a crucial link between direct measurements on sediments and the surface-based electrical-resistivity information obtained via field surveys. A second goal of the sediment characterization was to measure the total and water-leachable concentrations of key contaminants of concern as a function of depth and distance from the footprints of inactive disposal facilities. The total and water-leachable concentrations of key contaminants will be used to update contaminant distribution conceptual models and to provide more data for improving base-line risk predictions and remedial alternative selections. The ERC “ground truthing” exercise for the individual boreholes showed mixed results. In general, the high concentrations of dissolved salts in the pore waters of sediments from C5923, C5924 and C4191 produced a low resistivity “target” in the processed resistivity field surveys, and variability could be seen in the resistivity data that could relate to the variability in pore- water concentrations but the correlations (regression R2 were mediocre ranging from 0.2 to 0.7 at best; where perfect correlation is 1.0). The field-based geophysical data also seemed to suffer from a sort of vertigo, where looking down from the ground surface, the target (e.g., maximum pore-water salt concentration) depth was difficult to resolve. The best correlations between the field electrical

  12. 1992 CBECS BC

    Energy Information Administration (EIA) (indexed site)

    A57. Energy Conservation Features, Number of Buildings and Floorspace, 1992 Building ... 12,619 12,234 11,655 9,477 6,628 993 9.3 Energy Sources (more than one may apply) ...

  13. 1992 CBECS BC

    Energy Information Administration (EIA) (indexed site)

    Energy Sources, Number of Buildings, 1992 (Thousand) Building Characteristics RSE Column Factor: All Buildings All Buildings Using Any Energy Source Energy Sources Used (more than ...

  14. 1992 CBECS BC

    Gasoline and Diesel Fuel Update

    ... Q 416 740 2,154 20.3 Building Shell Conservation Features (more than one may apply) ... HVAC Conservation Features (more than one may apply) Variable Air-Volume System ...

  15. Bc at CDF

    SciTech Connect

    Wester, William; /Fermilab

    2006-04-01

    The authors report CDF results on the B{sub c}{sup -} meson in Run II. The B{sub c}{sup -} meson has been observed in semileptonic decays, B{sub c}{sup -} {yields} J/{psi} {ell}{sup -} {nu}X, where {ell} = e, {mu} at a significance greater than 5{sigma} in both channels. The B{sub c}{sup -} {yields} J/{psi} {ell}{sup -}{nu}X observations have resulted in measurements of the relative production times branching ratio with respect to B{sup -} J/{psi} K{sup -} decays and a precise determination of the lifetime of the B{sub c}{sup -}: {tau}(B{sub c}{sup -}) = 0.474{sub -0.066}{sup +0.073}(stat.) {+-} 0.033(syst.) ps. Also, an observation of B{sub c}{sup -} {yields} J/{psi} {pi}{sup -} decays at a significance exceeding 6{sigma} results in a precise determination of the mass of the B{sub c}{sup -}: M(B{sub c}{sup -}) = 6275.2 {+-} 4.3(stat.) {+-} 2.3(syst.) MeV/c{sup 2}.

  16. PP-22 BC Hydro

    Energy Saver

  17. 1992 CBECS BC

    Gasoline and Diesel Fuel Update

    ... 1,560 1,884 983 912 18.2 District Chilled Water ...... 28 2 7 10 9 2,066 ... 14,383 21,205 10,296 6.6 Buildings with Water Heating ...... 3,502 625 906 1,307 664 ...

  18. 1992 CBECS BC

    Gasoline and Diesel Fuel Update

    ... 22 14 22 17 10 4 7 20.0 District Chilled Water ...... 28 Q Q 10 5 3 2 3 ... 781 502 384 118 63 31 6.0 Buildings with Water Heating ...... 3,502 1,609 777 512 384 ...

  19. 1992 CBECS BC

    Gasoline and Diesel Fuel Update

    ... Primary Space Heating Secondary Space Heating Water Heating Cooling Cooking Manu- ... 91 4 38 (*) 6 Q Q 20.6 District Chilled Water ...... 28 -- -- -- 28 -- ...

  20. 1992 CBECS BC

    Gasoline and Diesel Fuel Update

    ... 746 1,125 76 50 33.5 9.9 District Chilled Water ...... 28 2,066 2,709 72.6 ... 5.0 853 950 63 51 27.5 4.2 Buildings with Water Heating ......

  1. 1992 CBECS BC

    Gasoline and Diesel Fuel Update

    ... 11 28 16 10 6 5 1 23.0 District Chilled Water ...... 28 Q Q 8 9 Q 2 2 1 ... 519 236 103 59 24 9 7.0 Buildings with Water Heating ...... 3,502 1,733 787 539 ...

  2. 1992 CBECS BC

    Gasoline and Diesel Fuel Update

    ... 95 8 Q 15 93 Q 2 Q 21.2 District Chilled Water ...... 28 28 Q Q 3 24 Q Q ... 1,081 80 509 855 36 7.0 Buildings with Water Heating ......

  3. Binding of the Respiratory Chain Inhibitor Antimycin to theMitochondrial bc1 Complex: A New Crystal Structure Reveals an AlteredIntramolecular Hydrogen-Bonding Pattern

    SciTech Connect

    Huang, Li-shar; Cobessi, David; Tung, Eric Y.; Berry, Edward A.

    2005-05-10

    Antimycin A (antimycin), one of the first known and most potent inhibitors of the mitochondrial respiratory chain, binds to the quinone reduction site of the cytochrome bc1 complex.Structure-activity-relationship studies have shown that the N-formylamino-salicyl-amide group is responsible for most of the binding specificity, and suggested that a low pKa for the phenolic OH group and an intramolecular H-bond between that OH and the carbonyl O of the salicylamide linkage are important. Two previous X-ray structures of antimycin bound to vertebrate bc1 complex gave conflicting results. A new structure reported here of the bovine mitochondrial bc1 complex at 2.28Angstrom resolution with antimycin bound, allows us for the first time to reliably describe the binding of antimycin and shows that the intramolecular hydrogen bond described in solution and in the small-molecule structure is replaced by one involving the NH rather than carbonyl O of the amide linkage, with rotation of the amide group relative to the aromatic ring. The phenolic OH and formylamino N form H-bonds with conserved Asp228 of cyt b, and the formylamino O H-bonds via a water molecule to Lys227. A strong density the right size and shape for a diatomic molecule is found between the other side of the dilactone ring and the alpha-A helix.

  4. License Amendment Request for Storing Exelon Sister Nuclear Stations Class B/C LLRW in the LaSalle Station Interim Radwaste Storage Facility - 13620

    SciTech Connect

    Azar, Miguel; Gardner, Donald A.; Taylor, Edward R.

    2013-07-01

    Exelon Nuclear (Exelon) designed and constructed an Interim Radwaste Storage Facility (IRSF) in the mid-1980's at LaSalle County Nuclear Station (LaSalle). The facility was designed to store low-level radioactive waste (LLRW) on an interim basis, i.e., up to five years. The primary reason for the IRSF was to offset lack of disposal in case existing disposal facilities, such as the Southeast Compact's Barnwell Disposal Facility in Barnwell, South Carolina, ceased accepting radioactive waste from utilities not in the Southeast Compact. Approximately ninety percent of the Radwaste projected to be stored in the LaSalle IRSF in that period of time was Class A, with the balance being Class B/C waste. On July 1, 2008 the Barnwell Disposal Facility in the Southeast Compact closed its doors to out of- compact Radwaste, which precluded LaSalle from shipping Class B/C Radwaste to an outside disposal facility. Class A waste generated by LaSalle is still able to be disposed at the 'Envirocare of Utah LLRW Disposal Complex' in Clive, Utah. Thus the need for utilizing the LaSalle IRSF for storing Class B/C Radwaste for an extended period, perhaps life-of-plant or more became apparent. Additionally, other Exelon Midwest nuclear stations located in Illinois that did not build an IRSF heretofore also needed extended Radwaste storage. In early 2009, Exelon made a decision to forward Radwaste from the Byron Nuclear Station (Byron), Braidwood Nuclear Station (Braidwood), and Clinton Nuclear Station (Clinton) to LaSalle's IRSF. As only Class B/C Radwaste would need to be forwarded to LaSalle, the original volumetric capacity of the LaSalle IRSF was capable of handling the small number of additional expected shipments annually from the Exelon sister nuclear stations in Illinois. Forwarding Class B/C Radwaste from the Exelon sister nuclear stations in Illinois to LaSalle would require an amendment to the LaSalle Station operating license. Exelon submitted the License Amendment Request

  5. Measured thermal and fast neutron fluence rates, ATR Cycle 100-BC, April 23, 1993--May 13, 1993

    SciTech Connect

    Smith, L.D.; Murray, R.K.; Rogers, J.W.

    1993-07-01

    This report contains the thermal (2200 m/s) and fast (E>1MeV) neutron fluence rate data for ATR Cycle 100-BC which were measured by the Radiation Measurements Laboratory (RML) as requested by the Power Reactor Programs (ATR Experiments) Radiation Measurements Work Order. This report contains fluence rate values corresponding to the particular elevations (relative to the 80 ft. core elevation) where the measurements were taken. The data in this report consists of (1) a table of the ATR power history and distribution, (2) a hard copy listing of all thermal and fast neutron fluence rates, (3) plots of both the thermal and fast neutron fluence rates, and (4) a magnetic record (3.5 inch diskette) containing a listing of only the fast neutron fluence rates, their assigned elevations and proper header identification of all monitor positions contained herein. The fluence rates reported are for the average power levels given in the table of power history and distribution. All {open_quotes}H{close_quotes} holder monitor wires for this cycle are 54 inches long. All {open_quotes}SR{close_quotes} holder monitor wires for this cycle are 55 inches long. This length allows measurement of the full core region and makes the first count elevation 24.73 inches above core midplane. Due to the safety rod problems in the west lobe, {open_quotes}BR{close_quotes} holders were used in the W-1, 2, 3, and 4 positions. All {open_quotes}BR{close_quotes} holder monitor wires for this cycle are 56.25 inches long. The distance from the end of the wires to the first count position was 4.25 inches for all wires counted from this cycle. The results from the measurements in the W-1, 2, 3, 4 monitor positions indicate that the safety rod followers were rotated to a different azimuthal orientation relative to the normal orientation. The results indicate that the rotation was counterclockwise from their normal orientation. This is the same condition observed starting with Cycle 99-B.

  6. Data:A3a8d802-1d32-4c6c-9e1f-e583306bc162 | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    83306bc162 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2....

  7. Gravitational Instability of a Nonrotating Galaxy (Conference...

    Office of Scientific and Technical Information (OSTI)

    Number: AC02-76SF00515 Resource Type: Conference Resource Relation: Conference: Invited talk at Particle Accelerator Conference (PAC 09), Vancouver, BC, Canada, 4-8 May 2009...

  8. Alternative Earth Resources Inc | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    840 - 1140 West Pender St. Place: Vancouver, B.C. Zip: V6E 4G1 Sector: Geothermal energy Website: www.alternative-earth.comsHo References: Alternative Earth Website1...

  9. Parallel State Estimation Assessment with Practical Data (Conference...

    Office of Scientific and Technical Information (OSTI)

    DOE Contract Number: AC05-76RL01830 Resource Type: Conference Resource Relation: Conference: IEEE Power and Energy Society General Meeting (PES), July 21-25, 2013, Vancouver, BC, ...

  10. Parallel State Estimation Assessment with Practical Data (Conference...

    Office of Scientific and Technical Information (OSTI)

    DOE Contract Number: AC05-76RL01830 Resource Type: Conference Resource Relation: Conference: IEEE Power & Energy Society General Meeting (PES), July 27-31, 2014. Vancouver, BC ...

  11. Microsoft Word - Press release - Evok portfolio launch - FINAL Sept 23.docx

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    PRESS RELEASE 200 - 560 Beatty Street Ÿ Vancouver Ÿ BC Ÿ V6B 2L3 p: 604.620.3895 e: info@evokinnovations.com Evok Innovations Announces First Round of Investments Investment in breakthrough clean technologies to address the environmental and economic challenges of today's oil and gas industry VANCOUVER, BRITISH COLUMBIA - September 27 th , 2016- Evok Innovations is pleased to announce its first investments in clean technologies to address the most pressing environmental and economic issues

  12. 2015-03-3-ESI-CS-Vancouver.indd

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    UTILITY Clark Public Utilities PROJECT Wastewater Treatment Plant COMPLETED CAPITAL IMPROVEMENTS (VERIFIED SAVINGS) Westside Plant Blower Swap 711,487 kWhyr Marine Park...

  13. CBECS 1992 - BC Tables and Definitions

    Energy Information Administration (EIA) (indexed site)

    of building characteristics that provide the most comprehensive breakdown of principal building activity and energy sources and end uses, respectively. Generally, there are two...

  14. PP-22_BC_Hydro.pdf

    Energy Saver

  15. PP-369 BC Hydro.pdf

    Energy Saver

  16. Conferences and Workshops

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Conferences and Workshops Below are events that are specifically related to Gasification. Also visit the NETL Events page to learn about other events. CONFERENCE DATES LOCATION 2016 International Advanced Coal Technologies Conference TBD TBD 2016 Gasification Technologies Conference 10/16/16 - 10/19/16 Vancouver, BC Power-Gen International 2016 12/13/16 - 12/15/16 Orlando, FL 34th International Pittsburgh Coal Conference, 2017 9/5/17 - 9/8/17 Pittsburgh, PA Conference Proceedings 2015

  17. Best Practices Case Study: New Tradition Homes - Landover Commons, Vancouver, WA

    SciTech Connect

    none,

    2010-09-01

    Case study of New Tradition Homes who saved 26% over Washington states energy code by moving ducts inside conditioned space, upgrading the furnace, increasing attic insulation to R-49, and improving air sealing. This added $3,600 to the initial cost or $290 in increased annual mortgage costs but saved $991 per year for an annual net cash back to the homeowner of $700.

  18. New Whole-House Solutions Case Study: New Traditions, Vancouver, Washington

    SciTech Connect

    none,

    2012-04-01

    This builder worked with WSU Energy Extension/Building America Partnership for Improved Residential Construction to design HERS-65 homes with ducts in conditioned space, site grading and drain piping, and high-efficiency HVAC..

  19. Microsoft Word - Fort Vancouver vehicle report 14-31608 08-11...

    Office of Environmental Management (EM)

    ... Individual observations of the selected vehicles provided the basis for recommendations related to EV adoption and whether a battery electric vehicle (BEV) or plug-in hybrid ...

  20. BC Transit Fuel Cell Bus Project Evaluation Results: Second Report

    Alternative Fuels and Advanced Vehicles Data Center

    ... The Quebec plant produces hydrogen using renewable methods-through electrolysis of water ... The first problems were quality related due to water getting into the motor controllers. ...

  1. MHK Projects/Ucluelet BC Canada | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    has been granted an Investigative Use Permit for the purposes on determining the feasibility of a wave energy project off the coast of Ucluelet, British Columbia. Project...

  2. BC Transit Fuel Cell Bus Project: Evaluation Results Report

    Alternative Fuels and Advanced Vehicles Data Center

    The Quebec plant produces hydrogen using renewable methods-through electrolysis of water and using a chlor alkali waste recuperation process. Power for these processes comes...

  3. BC TIPS - Hot-Humid Climate: New Orleans

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Hot-Humid Climate: New Orleans Building Technologies Program The U.S. Department of Energy's Builders Challenge recognizes quality homes that also save you money. U.S. homebuilders...

  4. PP-22-1_BC_Hydro.pdf

    Energy Saver

  5. PP-22-2_BC_Hydro.pdf

    Energy Saver

  6. BC TIPS- Hot-Humid Climate: New Orleans

    Energy.gov [DOE]

    Homes that provide substantial reductions in energy use and home-owner utility bills and recognizes the best practices for quality, comfort, health, and safety in the market.

  7. Measurement of the B+-_c Meson Lifetime Using B+-_c -> J/psi + l+- + X Decays

    SciTech Connect

    Hartz, Mark Patrick; /Pittsburgh U.

    2008-11-01

    This thesis describes a measurement of the average proper decay time of the B{sub c}{sup {+-}} mesons, the ground state of bottom and charm quark bound states. The lifetime measurement is carried out in the decay modes B{sub c}{sup {+-}} {yields} J/{psi} + e{sup {+-}} + X and B{sub c}{sup {+-}} {yields} J/{psi} + {mu}{sup {+-}} + X, where the J/{psi} decays as J/{psi} {yields} {mu}{sup +}{mu}{sup -} and the X are unmeasured particles such as {nu}{sub e} or {nu}{sub {mu}}. The data are collect by the CDF II detector which measures the properties of particles created in {radical}s = 1.96 TeV p{bar p} collisions delivered by the Fermilab Tevatron. This measurement uses {approx} 1 fb{sup -1} of integrated luminosity. The measured average proper decay time of B{sub c}{sup {+-}} mesons, {tau} = 0.475{sub -0.049}{sup +0.053}(stat.) {+-} 0.018(syst.) ps, is competitive with the most precise measurements in the world and confirms previous measurements and theoretical predictions.

  8. PROP re-refined oil engine test performance

    SciTech Connect

    Linnard, R.E.

    1980-11-01

    Using conventional, commercially-available nonproprietary (to Phillips) additive treatments, engine test programs have successfully demonstrated Phillips Re-refined Oil Process (PROP) oils' compliance with the performance requirements of MIL-L-46152A and API Services SE/CC. This paper reports on the engine testing experience with PROP refined oils as produced in a full-scale 2 MM GPY PROP plant operating with Buyer-collected used oil feedstocks. Comment is also made on the status of the first two PROP plants, one built for the state of North Carolina and the other for Mohawk Oil Company, Ltd., Vancouver B.C., Canada.

  9. Materials and Modules for Low Cost, High Performance Fuel Cell Humidifiers

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Kick-off Meeting, Wash. D.C - 10/01/2009 Materials and Modules for Low Cost, High Performance Fuel Cell Humidifiers Prime Contractor: W. L. Gore & Associates Elkton, MD Principal Investigator: William B. Johnson Sub-Contractor: dPoint Technologies Vancouver, BC W. L. Gore & Associates, Inc. DOE Kick-off Meeting, Wash. D.C - 10/01/2009 Ahluwalia, et. al, ibid. Mirza, Z. DOE Hydrogen Program Review, June 9-13, 2008; Washington, DC Background W. L. Gore & Associates, Inc. DOE Kick-off

  10. Tanzania wildcats to evaluate Jurassic Mandawa salt basin

    SciTech Connect

    Nagati, M.

    1996-10-07

    After 5 years of stagnant exploration in East Africa, Canadian independent Tanganyika Oil Co. of Vancouver, B.C., will drill two wildcats in Tanzania to evaluate the hydrocarbon potential of the coastal Jurassic Mandawa salt basin. Mita-1, spudded around Oct. 1, will be drilled to about 7,000 ft, East Lika-1 will be drilled in early December 1996 to approximately 6,000 ft. The two wells will test different structures and play concepts. The paper describes the exploration history, source rock potential, hydrocarbon shows, potential reservoir, and the prospects.

  11. Materials Data on Pr(BC)2 (SG:127) by Materials Project

    SciTech Connect

    Kristin Persson

    2015-02-09

    Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations

  12. Materials Data on La(BC)2 (SG:127) by Materials Project

    SciTech Connect

    Kristin Persson

    2015-02-09

    Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations

  13. Materials Data on Tb(BC)2 (SG:127) by Materials Project

    SciTech Connect

    Kristin Persson

    2015-03-08

    Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations

  14. Materials Data on Tm(BC)2 (SG:127) by Materials Project

    SciTech Connect

    Kristin Persson

    2015-03-08

    Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations

  15. Materials Data on Er(BC)2 (SG:127) by Materials Project

    SciTech Connect

    Kristin Persson

    2015-03-08

    Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations

  16. Materials Data on Ce(BC)2 (SG:127) by Materials Project

    SciTech Connect

    Kristin Persson

    2015-02-09

    Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations

  17. Materials Data on Lu(BC)2 (SG:127) by Materials Project

    SciTech Connect

    Kristin Persson

    2014-11-02

    Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations

  18. Materials Data on Dy(BC)2 (SG:127) by Materials Project

    SciTech Connect

    Kristin Persson

    2015-02-09

    Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations

  19. Materials Data on Ho(BC)2 (SG:127) by Materials Project

    SciTech Connect

    Kristin Persson

    2015-03-08

    Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations

  20. Materials Data on Mg(BC)2 (SG:64) by Materials Project

    DOE Data Explorer

    Kristin Persson

    2014-11-02

    Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations

  1. BC TIPS - Hot-Humid Climate: New Orleans | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Homes that provide substantial reductions in energy use and home-owner utility bills and recognizes the best practices for quality, comfort, health, and safety in the market. PDF ...

  2. Evaluation of the In Vivo and Ex Vivo Binding of Novel BC1 Cannabinoid Receptor Radiotracers

    SciTech Connect

    Miller, A.; Gatley, J.; Gifford, A.

    2002-01-01

    The primary active ingredient of marijuana, 9-tetrahydrocannabinol, exerts its psychoactive effects by binding to cannabinoid CB1 receptors. These receptors are found throughout the brain with high concentrations in the hippocampus and cerebellum. The current study was conducted to evaluate the binding of a newly developed putative cannabinoid antagonist, AM630, and a classical cannabinoid 8-tetrahydrocannabinol as potential PET and/or SPECT imaging agents for brain CB1 receptors. For both of these ligands in vivo and ex vivo studies in mice were conducted. AM630 showed good overall brain uptake (as measure by %IA/g) and a moderately rapid clearance from the brain with a half-clearance time of approximately 30 minutes. However, AM630 did not show selective binding to CB1 cannabinoid receptors. Ex vivo autoradiography supported the lack of selective binding seen in the in vivo study. Similar to AM630, 8-tetrahydrocanibol also failed to show selective binding to CB1 receptor rich brain areas. The 8-tetrahydrocanibol showed moderate overall brain uptake and relatively slow brain clearance as compared to AM630. Further studies were done with AM2233, a cannabinoid ligand with a similar structure as AM630. These studies were done to develop an ex vivo binding assay to quantify the displacement of [131I]AM2233 binding by other ligands in Swiss-Webster and CB1 receptor knockout mice. By developing this assay we hoped to determine the identity of an unknown binding site for AM2233 present in the hippocampus of CB1 knockout mice. Using an approach based on incubation of brain slices prepared from mice given intravenous [131I]AM2233 in either the presence or absence of AM2233 (unlabelled) it was possible to demonstrate a significant AM2233-displacable binding in the Swiss-Webster mice. Future studies will determine if this assay is appropriate for identifying the unknown binding site for AM2233 in the CB1 knockout mice.

  3. Observation of an Excited Bc± Meson State with the ATLAS Detector

    DOE PAGES [OSTI]

    Aad, G.; Abbott, B.; Abdallah, J.; Abdel Khalek, S.; Abdinov, O.; Aben, R.; Abi, B.; Abolins, M.; AbouZeid, O. S.; Abramowicz, H.; et al

    2014-11-21

    We perform a search for excited states of the B±c meson using 4.9 fb-1 of 7 TeV and 19.2 fb-1 of 8 TeV pp collision data collected by the ATLAS experiment at the LHC. A new state is observed through its hadronic transition to the ground state, with the latter detected in the decay B±c →J/ψπ±. The state appears in the m(B±c π+π₋)₋m(B±c )₋2m(π±) mass difference distribution with a significance of 5.2 standard deviations. The mass of the observed state is 6842±4±5 MeV, where the first error is statistical and the second is systematic. The mass and decay of thismore » state are consistent with expectations for the second S-wave state of the B±c meson, B±c (2S).« less

  4. Contract NO. DE-FG22-93BC14862 Department of Petroleum Engineering

    Office of Scientific and Technical Information (OSTI)

    Manager (DOE): F. John Fayers Khalid Aziz Thomas A. Hewett Sepehr Arbabi Marilyn Smith Thomas B. Reid - ; . ? --.i 4 . - - - - 9 r c . 1 > -- r n * : - * c-2 : , ...

  5. Materials Data on Nb7(BC)4 (SG:71) by Materials Project

    DOE Data Explorer

    Kristin Persson

    2014-11-02

    Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations

  6. Materials Data on Y(BC)2 (SG:131) by Materials Project

    DOE Data Explorer

    Kristin Persson

    2015-03-08

    Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations

  7. Nevaro Capital Corporation Formerly VRB Power Systems | Open...

    OpenEI (Open Energy Information) [EERE & EIA]

    Vancouver, British Columbia, Canada Zip: V6E2Y3 Product: Vancouver-based electrochemical energy storage company that has commercialised the patented Vanadium Redox Battery Energy...

  8. USAJobs Search | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Apply Phoenix, Arizona filter Fort Peck, Montana (2) Apply Fort Peck, Montana filter Vancouver, Washington (2) Apply Vancouver, Washington filter Lakewood, Colorado (1) Apply...

  9. USAJobs Search | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Search Equipment Services Remove Equipment Services filter Filter by locations: Vancouver, Washington (1) Apply Vancouver, Washington filter Filter by salary: 62,531.00 -...

  10. Building America Whole-House Solutions for New Homes: New Traditions...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    New Traditions, Vancouver, Washington Building America Whole-House Solutions for New Homes: New Traditions, Vancouver, Washington Case study of New Tradition Homes who worked with ...

  11. International Bio Fuels Corporation | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Corporation Jump to: navigation, search Name: International Bio Fuels Corporation Place: Vancouver, Washington State Zip: WA 98682 Product: Vancouver based Biodiesel project...

  12. The Lifetime of a beautiful and charming meson: B_c lifetime measured using the D0 detector

    SciTech Connect

    Welty-Rieger, Leah Christine; /Indiana U.

    2008-09-01

    Using approximately 1.3 fb{sup -1} of data collected by the D0 detector between 2002 and 2006, the lifetime of the B{sub c}{sup {+-}} meson is studied in the B{sub c}{sup {+-}} {yields} J/{psi}{mu}{sup {+-}} + X final state. Using an unbinned likelihood simultaneous fit to J/{psi} + {mu} invariant mass and lifetime distributions, a signal of 810 {+-} 80(stat.) candidates is estimated and a lifetime measurement made of: {tau}(B{sub c}{sup {+-}}) = 0.448{sub -0.036}{sup +0.038}(stat) {+-} 0.032(sys) ps.

  13. Radiation environment simulations at the Tevatron, studies of the beam profile and measurement of the Bc meson mass

    SciTech Connect

    Nicolas, Ludovic Y.

    2005-09-01

    The description of a computer simulation of the CDF detector at Fermilab and the adjacent accelerator parts is detailed, with MARS calculations of the radiation background in various elements of the model due to the collision of beams and machine-related losses. Three components of beam halo formation are simulated for the determination of the principal source of radiation background in CDF due to beam losses. The effect of a collimator as a protection for the detector is studied. The simulation results are compared with data taken by a CDF group. Studies of a 150 GeV Tevatron proton beam are performed to investigate the transverse diffusion growth and distribution. A technique of collimator scan is used to scrape the beam under various experimental conditions, and computer programs are written for the beam reconstruction. An average beam halo growth speed is given and the potential of beam tail reconstruction using the collimator scan is evaluated. A particle physics analysis is conducted in order to detect the B{sub c} {yields} J/{psi}{pi} decay signal with the CDF Run II detector in 360 pb{sup -1} of data. The cut variables and an optimization method to determine their values are presented along with a criterion for the detection threshold of the signal. The mass of the B{sub c} meson is measured with an evaluation of the significance of the signal.

  14. B_c Meson Production Around the Z^0 Peak at a High Luminosity e^+ e^- Collider

    SciTech Connect

    Yang, Zhi; Wu, Xing-Gang; Chen, Gu; Liao, Qi-Li; Zhang, Jia-Wei; /Chongqing U.

    2012-05-22

    Considering the possibility to build an e{sup +}e{sup -} collider at the energies around the Z{sup 0}-boson resonance with a planned luminosity so high as L {proportional_to} 10{sup 34} {approx} 10{sup 36} cm{sup -2}s{sup -1} (super Z-factory), we make a detailed discussion on the (c{bar b})-quarkonium production through e{sup +}e{sup -} {yields} (c{bar b})[n] + b + {bar c} within the framework of non-relativistic QCD. Here [n] stands for the Fock-states |(c{sub b}){sub 1}[{sup 1}S{sub 0}]>, |(c{bar b})8[{sup 1}S{sub 0}]g>, |(c{bar b} ){sub 1}[{sup 3}S{sub 1}]>, |(c{bar b}){sub 8}[{sup 3}S{sub 1}]g>, |(c{bar b}){sub 1}[{sup 1}P{sub 1}]> and |(c{bar b}){sub 1}[{sup 3}P{sub J}]> (with J = (1, 2, 3)) respectively. To simplify the hard-scattering amplitude as much as possible and to derive analytic expressions for the purpose of future events simulation, we adopt the 'improved trace technology' to do our calculation, which deals with the hard scattering amplitude directly at the amplitude level other than the conventional way at the squared-amplitude level. Total cross-section uncertainties caused by the quark masses are predicted by taking m{sub c} = 1.50 {+-} 0.30 GeV and m{sub b} = 4.90 {+-} 0.40 GeV. If all higher (c{bar b})-quarkonium states decay to the ground state B{sub c} (|(c{bar b}){sub 1}[{sup 1}S{sub 0}]>) with 100% efficiency, we obtain {sigma}{sub e{sup +}+e{sup -}{yields}B{sub c}+b+{bar c}} = 5.190{sub -2.419}{sup +6.222} pb, which shows that about 10{sup 5} {approx} 10{sup 7} B{sub c} events per operation year can be accumulated in the super Z-factory. If taking the collider energy runs slightly off the Z{sup 0}-peak, i.e. {radical}S = (1.00 {+-} 0.05)m{sub Z}, the total cross-section shall be lowered by about one-order from its peak value. Such a super Z-factory shall provide another useful platform to study the properties of B{sub c} meson, or even the properties of its excited P-wave states, in addition to its production at the hadronic colliders Tevatron and LHC.

  15. Di-photon and photon + b/c production cross sections at Ecm = 1.96- TeV

    SciTech Connect

    Gajjar, Anant; /Liverpool U.

    2005-05-01

    Measurements of the di-photon cross section have been made in the central region and are found to be in good agreement with NLO QCD predictions. The cross section of events containing a photon and additional heavy flavor jet have also been measured, as well as the ratio of photon + b to photon + c. The statistically limited sample shows good agreement with Leading Order predictions.

  16. Treatment and Outcomes in Patients With Primary Cutaneous B-Cell Lymphoma: The BC Cancer Agency Experience

    SciTech Connect

    Hamilton, Sarah N.; Wai, Elaine S.; Tan, King; Alexander, Cheryl; Gascoyne, Randy D.; Connors, Joseph M.

    2013-11-15

    Purpose: To review the treatment and outcomes of patients with primary cutaneous B-cell lymphoma (CBCL). Methods and Materials: Clinical characteristics, treatment, and outcomes were analyzed for all patients referred to our institution from 1981 through 2011 with primary CBCL without extracutaneous or distant nodal spread at diagnosis (n=136). Hematopathologists classified 99% of cases using the World Health Organization-European Organization for Research and Treatment of Cancer (WHO-EORTC) guidelines. Results: Median age at diagnosis was 62 years. Classification was 18% diffuse large B-cell leg-type (DLBCL-leg), 32% follicle center (FCCL), 45% marginal zone (MZL), and 6% nonclassifiable (OTHER). Of the 111 subjects with indolent lymphoma (FCCL, MZL, OTHER), 79% received radiation alone (RT), 11% surgery alone, 3% chemotherapy alone, 4% chemotherapy followed by RT, and 3% observation. Following treatment, 29% of subjects relapsed. In-field recurrence occurred in 2% treated with RT and in 33% treated with surgery alone. Of the 25 subjects with DLBCL-leg, 52% received chemotherapy followed by RT, 24% chemotherapy, 20% RT, and 4% surgery alone. Seventy-nine percent received CHOP-type chemotherapy (cyclophosphamide, doxorubicin or epirubicin, vincristine, prednisone), 47% with rituximab added. Overall and disease-specific survival and time to progression at 5 years were 81%, 92%, and 69% for indolent and 26%, 61%, and 54% for DLBCL-leg, respectively. On Cox regression analysis of indolent subjects, RT was associated with better time to progression (P=.05). RT dose, chemo, age >60 y, and >1 lesion were not significantly associated with time to progression. For DLBCL-leg, disease-specific survival at 5 years was 100% for those receiving rituximab versus 67% for no rituximab (P=.13). Conclusions: This review demonstrates better outcomes for indolent histology compared with DLBCL-leg, validating the prognostic utility of the WHO-EORTC classification. In the indolent group, RT was associated with 98% local control. DLBCL-leg is a more aggressive disease; the excellent results in the rituximab group suggest it has an important role in management.

  17. Life cycle assessment of base-load heat sources for district heating system options

    SciTech Connect

    Ghafghazi, Saeed; Sowlati, T.; Sokhansanj, Shahabaddine; Melin, Staffan

    2011-03-01

    Purpose There has been an increased interest in utilizing renewable energy sources in district heating systems. District heating systems are centralized systems that provide heat for residential and commercial buildings in a community. While various renewable and conventional energy sources can be used in such systems, many stakeholders are interested in choosing the feasible option with the least environmental impacts. This paper evaluates and compares environmental burdens of alternative energy source options for the base load of a district heating center in Vancouver, British Columbia (BC) using the life cycle assessment method. The considered energy sources include natural gas, wood pellet, sewer heat, and ground heat. Methods The life cycle stages considered in the LCA model cover all stages from fuel production, fuel transmission/transportation, construction, operation, and finally demolition of the district heating system. The impact categories were analyzed based on the IMPACT 2002+ method. Results and discussion On a life-cycle basis, the global warming effect of renewable energy options were at least 200 kgeqCO2 less than that of the natural gas option per MWh of heat produced by the base load system. It was concluded that less than 25% of the upstream global warming impact associated with the wood pellet energy source option was due to transportation activities and about 50% of that was resulted from wood pellet production processes. In comparison with other energy options, the wood pellets option has higher impacts on respiratory of inorganics, terrestrial ecotoxicity, acidification, and nutrification categories. Among renewable options, the global warming impact of heat pump options in the studied case in Vancouver, BC, were lower than the wood pellet option due to BC's low carbon electricity generation profile. Ozone layer depletion and mineral extraction were the highest for the heat pump options due to extensive construction required for these

  18. USAJobs Search | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    62,531.00 - 97,434.00 Remove 62,531.00 - 97,434.00 filter Filter by locations: Vancouver, Washington (1) Apply Vancouver, Washington filter Filter by salary: 62,531.00 -...

  19. A Stieltjes-Lanczos procedure for parameterized matrix problems...

    Office of Scientific and Technical Information (OSTI)

    July 18-22, 2011 in Vancouver, Canada.; Related Information: Proposed for presentation at the ICIAM 2011 held July 18-22, 2011 in Vancouver, Canada. Research Org: Sandia National ...

  20. CX-005003: Categorical Exclusion Determination

    Energy.gov [DOE]

    Washington-City-VancouverCX(s) Applied: A1, A9, A11, B2.5, B5.1Date: 01/10/2011Location(s): Vancouver, WashingtonOffice(s): Energy Efficiency and Renewable Energy

  1. CX-007074: Categorical Exclusion Determination

    Energy.gov [DOE]

    Washington-City-VancouverCX(s) Applied: A1, A9, A11, B2.5, B5.1Date: 01/10/2011Location(s): Vancouver, WashingtonOffice(s): Energy Efficiency and Renewable Energy

  2. A FOURTH ORDER RESONANCE OF A HIGH INTENSITY LINAC (Conference...

    Office of Scientific and Technical Information (OSTI)

    Resource Type: Conference Resource Relation: Conference: 2009 Particle Accelerator Conference, Vancouver, Canada, 20090504, 20090508 Research Org: Oak Ridge National Laboratory ...

  3. Building America Whole-House Solutions for New Homes: New Traditions,

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Vancouver, Washington | Department of Energy New Traditions, Vancouver, Washington Building America Whole-House Solutions for New Homes: New Traditions, Vancouver, Washington Case study of New Tradition Homes who worked with Building America partner WSU Energy Extension to design HERS-65 homes with ducts in conditioned space, site grading and drain piping, and high-efficiency HVAC. New Tradition Homes: Landover Commons - Vancouver, WA (653.77 KB) More Documents & Publications Low-Cost

  4. Data:2bc1a91a-517b-42a1-8f30-4d35cf7ce439 | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information...

  5. Data:8777236b-9eb8-4857-bc99-0e5a03782fa7 | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information...

  6. Data:4bc8edda-d0e1-40ee-aac2-c2b32603a6b4 | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    edda-d0e1-40ee-aac2-c2b32603a6b4 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1....

  7. Data:Dc0b9e78-93e5-4718-b979-92bc8c6f8fcd | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information...

  8. Data:2490a6af-e189-42e4-ae82-4bc2282ee035 | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information...

  9. Data:A125b2bf-bc5f-4315-a944-c784a51a1dac | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    c784a51a1dac No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2....

  10. Variation of the radiative properties during black carbon aging...

    Office of Scientific and Technical Information (OSTI)

    A theoretical black carbon (BC) aging model is developed to account for three typical evolution stages, namely, freshly emitted aggregates, coated BC by soluble material, and BC ...

  11. CX-012809: Categorical Exclusion Determination

    Energy.gov [DOE]

    LURR 20140313 City of Vancouver Sewer Lateral CX(s) Applied: B4.9Date: 41906 Location(s): WashingtonOffices(s): Bonneville Power Administration

  12. Machinist

    Energy.gov [DOE]

    Join the Bonneville Power Administration (BPA) for a challenging and rewarding career, while working, living, and playing in the Pacific Northwest and working in Vancouver, Washington. This...

  13. Silicon Chemical Corp SCC | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Corp SCC Jump to: navigation, search Name: Silicon Chemical Corp (SCC) Place: Vancouver, Washington State Zip: 98687 Product: US manufacturer of polysilicon and silicon chemical...

  14. Prudent Energy | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    ss":"","icon":"","group":"","inlineLabel":"","visitedicon":"" Hide Map References: VRB Energy Storage System1 Prudent Energy Inc. (Prudent Energy), with offices in Vancouver,...

  15. Natural Ventilation in California Offices: Estimated Health Effects...

    Office of Scientific and Technical Information (OSTI)

    Resource Relation: Conference: ASHRAE IAQ 2013: Environmental Health in Low Energy Buildings, Vancouver, British Colombia, October 15-18, 2013 Research Org: Ernest Orlando Lawrence ...

  16. USAJobs Search | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    and light industrial facilities, buildings and grounds located at the Ross Complex in Vancouver, Washington, and the leased Portland BPA hangar. Functions include day-to-day...

  17. Supplement Analyses (SA) | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Analysis Transmission System Vegetation Manaement Program, the ROWs span sections of Vancouver Washington and Portland Oregon and are all located in the Olympia Region June 6,...

  18. EIS-0285-SA-15: Supplement Analysis

    Energy.gov [DOE]

    Transmission System Vegetation Manaement Program, the ROWs span sections of Vancouver Washington and Portland Oregon and are all located in the Olympia Region

  19. BPA-2011-00369-FOIA Request

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    The following is a New FOIA request: ***s* Name: Richard van Dijk Organization: Another Way BPA Address: P.O. Box 820152 Vancouver, WA 98682 Phone:...

  20. Dispersion in the Presence of Strong Transverse Wakefields (Conference...

    Office of Scientific and Technical Information (OSTI)

    Science, Technology and Applications, 12-16 May 1997, Vancouver, British Columbia, Canada Research Org: SLAC National Accelerator Laboratory (SLAC) Sponsoring Org: USDOE ...

  1. Itron (Washington) | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Washington) Jump to: navigation, search Name: Itron Address: 601 Officers Row Place: Vancouver, Washington Zip: 98661 Region: Pacific Northwest Area Sector: Efficiency Product:...

  2. Solar Energy Sources SES Solar Inc formerly Electric Network...

    OpenEI (Open Energy Information) [EERE & EIA]

    SES Solar Inc formerly Electric Network com Jump to: navigation, search Name: Solar Energy Sources - SES Solar Inc (formerly Electric Network.com) Place: Vancouver, British...

  3. BONNEVILLE POWER ADMINISTRATION FOR IMMEDIATE RELEASE

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Wash. * Shahala Middle School, Vancouver, Wash. * Pierce County Home School Club, Milton, Wash. BPA sponsors the science bowl to showcase students' talents in science,...

  4. Westview Team 1 of Portland wins BPA Regional Science Bowl

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Wash. Shahala Middle School, Vancouver, Wash. Pierce County Home School Club, Milton, Wash. BPA sponsors the science bowl to showcase students' talents in science,...

  5. Stoller Middle School of Beaverton, Ore., emerges undefeated...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Wash. Shahala Middle School, Vancouver, Wash. Pierce County Home School Club, Milton, Wash. BPA sponsors the science bowl to showcase students' talents in science,...

  6. Advanced Lithium Power Inc ALP | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Lithium Power Inc ALP Jump to: navigation, search Name: Advanced Lithium Power Inc (ALP) Place: Vancouver, British Columbia, Canada Product: They develop lithium ion and advanced...

  7. Etna Resources soon to be Pan American Lithium | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Etna Resources soon to be Pan American Lithium Jump to: navigation, search Name: Etna Resources (soon to be Pan American Lithium) Place: Vancouver, British Columbia, Canada Zip:...

  8. I-5 Corridor Reinforcement Project Fact Sheet -- Keeping the...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Minnehaha Salmon Creek Camas Troutdale Troutdale Oak Park Filbert Rainier Vancouver Shipyard Clatskanie Trojan Thatcher Junction Rivergate Mill Plain Fishers Road Chelatchie...

  9. Pacific West Energy | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Energy Jump to: navigation, search Name: Pacific West Energy Place: Vancouver, Washington State Zip: 98661 Sector: Renewable Energy Product: Pacific West Energy is a renewable...

  10. CX-013628: Categorical Exclusion Determination

    Energy.gov [DOE]

    LURR 20150197 Vancouver Parking Area CX(s) Applied: B4.9Date: 04/29/2015 Location(s): WashingtonOffices(s): Bonneville Power Administration

  11. Pangaea Ventures Ltd (Canada) | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Canada) Jump to: navigation, search Logo: Pangaea Ventures Ltd (Canada) Name: Pangaea Ventures Ltd (Canada) Address: 1500 West Georgia Street, Suite 1580 Place: Vancouver, Canada...

  12. Technical Services Supply Process Specialist

    Energy.gov [DOE]

    This position is located in Vancouver, Washington, and serves as senior process and procedure specialist within Technical Services Support (NSTS), and is responsible for the technical assimilation...

  13. BPA-2011-01316-FOIA Request

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    AMERICA June 2, 2011 Ms. Michelle Belkot Bonneville Power Administration RFP: 1928, Ross Complex Hazardous & Non-Hazardous Disposal 7600 NE 41 ST Street, Suite 201 Vancouver,...

  14. IT Specialist

    Energy.gov [DOE]

    This position is located in the IT Asset Management Team of IT Client Services, Information Technology at Bonneville Power Administration located in Vancouver, Washington. The IT Client Services...

  15. CX-003083: Categorical Exclusion Determination

    Energy.gov [DOE]

    Wood Pole Replacement of Ross-Vancouver Shipyard Number 1, Structure 2/3 in Fog Chamber Dump Area Number 2CX(s) Applied: B1.3Date: 07/07/2010Location(s): Vancouver, WashingtonOffice(s): Bonneville Power Administration

  16. 2002 DOE Final Inherently Governmental and Commercial Activities...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... 019 50 BPA Vancouver WA US 1 Q560 I 1999 1975 019 50 BPA Vancouver WA US 1 Q560 I 1999 1947 019 50 BPA Portland OR US 1 Q560 I 1999 1932 019 50 BPA Portland OR US 4 Q560 I 1999 ...

  17. Randomized Noninferiority Trial of Reduced High-Dose Volume Versus Standard Volume Radiation Therapy for Muscle-Invasive Bladder Cancer: Results of the BC2001 Trial (CRUK/01/004)

    SciTech Connect

    Huddart, Robert A.; Hall, Emma; Hussain, Syed A.; Jenkins, Peter; Rawlings, Christine; Tremlett, Jean; Crundwell, Malcolm; Adab, Fawzi A.; Sheehan, Denise; Syndikus, Isabel; Hendron, Carey; Lewis, Rebecca; Waters, Rachel; James, Nicholas D.

    2013-10-01

    Purpose: To test whether reducing radiation dose to uninvolved bladder while maintaining dose to the tumor would reduce side effects without impairing local control in the treatment of muscle-invasive bladder cancer. Methods and Materials: In this phase III multicenter trial, 219 patients were randomized to standard whole-bladder radiation therapy (sRT) or reduced high-dose volume radiation therapy (RHDVRT) that aimed to deliver full radiation dose to the tumor and 80% of maximum dose to the uninvolved bladder. Participants were also randomly assigned to receive radiation therapy alone or radiation therapy plus chemotherapy in a partial 2 2 factorial design. The primary endpoints for the radiation therapy volume comparison were late toxicity and time to locoregional recurrence (with a noninferiority margin of 10% at 2 years). Results: Overall incidence of late toxicity was less than predicted, with a cumulative 2-year Radiation Therapy Oncology Group grade 3/4 toxicity rate of 13% (95% confidence interval 8%, 20%) and no statistically significant differences between groups. The difference in 2-year locoregional recurrence free rate (RHDVRT ? sRT) was 6.4% (95% confidence interval ?7.3%, 16.8%) under an intention to treat analysis and 2.6% (?12.8%, 14.6%) in the per-protocol population. Conclusions: In this study RHDVRT did not result in a statistically significant reduction in late side effects compared with sRT, and noninferiority of locoregional control could not be concluded formally. However, overall low rates of clinically significant toxicity combined with low rates of invasive bladder cancer relapse confirm that (chemo)radiation therapy is a valid option for the treatment of muscle-invasive bladder cancer.

  18. Data:D2e8eb8e-d151-44bc-8a2c-7e468f57f91f | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    a2c-7e468f57f91f No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic...

  19. CX-001866: Categorical Exclusion Determination

    Energy.gov [DOE]

    Renewable Energy Composite SolutionsCX(s) Applied: A1, A9, B5.1Date: 03/31/2010Location(s): Vancouver, WashingtonOffice(s): Energy Efficiency and Renewable Energy, Golden Field Office

  20. Blue Energy | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Blue Energy Address: Box 29068 1950 West Broadway Place: Vancouver Zip: V6J 1Z0 Region: Canada Sector: Marine and Hydrokinetic Phone Number: 604-682-2583 Website: www.bluenergy.com...

  1. Finavera Renewables Ocean Energy Ltd | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Ocean Energy Ltd Address: 595 Burrard Street Suite 3113 Three Bentall Centre PO Box 49071 Place: Vancouver Zip: V7X 1G4 Region: Canada Sector: Marine and Hydrokinetic...

  2. US Ethanol LLC | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    LLC Place: Vancouver, Washington State Zip: 98660 Product: Ethanol producer in the north-west. References: US Ethanol LLC1 This article is a stub. You can help OpenEI by...

  3. USAJobs Search | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Vancouver, Washington USAJobs Search USAJobs Search The jobs listed below are open to all U.S. Citizens. If you are a current DOE employee, or a current Federal employee at any...

  4. Seawood Designs Inc | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Jump to: navigation, search Name: Seawood Designs Inc Address: 201 Marine Drive Cobble Hill Place: Vancouver Island Zip: V0R 1L1 Region: Canada Sector: Marine and Hydrokinetic...

  5. BPA-2013-01714-FOIA Correspondence

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Richard van Dijk Another Way BPA PO Box 820152 Vancouver, WA 98682 FOIA BPA-2013-01714-F Dear Mr. van Dijk: Thank you for your request for records that you made to the Bonneville...

  6. BPA-2011-00359-FOIA Correspondence

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    's of PUBLIC AFFAIRS December 14. 2010 In reply refer to: DK-7 Richard van Dijk Another Way BPA P.O. Box 820152 Vancouver, WA 98682 RE: BPA-2011-00359-F Dear Mr. van...

  7. Microsoft Word - ExLtr.doc

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    8, 2013 In reply refer to: DK-7 Richard van Dijk Another Way BPA PO Box 820152 Vancouver, WA 98682 FOIA BPA-2013-00361-F Dear Mr. van Dijk: Bonneville Power Administration (BPA)...

  8. BPA-2013-01712-FOIA Correspondence

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    AND CONTINUITY OF OPERATIONS September 20, 2013 In reply refer to: NN- 1 Richard van Dijk Another Way BPA P0 Box 820152 Vancouver, WA 98682 FOIA BPA-2013-01712-F Dear Mr. van...

  9. BPA-2010-00122-FOIA Response

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Mr. Richard van Dijk Another Way BPA P.O. Box 820152 Vancouver, WA 98682 RE: FOIA BPA-2011-00122-F Dear Mr. van Dijk: This is a final response to your request for information...

  10. BPA-2012-00183-CRequest

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    information is needed to fulfill this request, please let me know. Thank you, Richard van Dijk Another Way BRA P0 Box 820152 Vancouver, WA 98682 360.453.7260 richard@alderspur.com...

  11. BPA-2013-00484-FOIA Response

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    4, 2013 In reply refer to: DK-7 Richard van Dijk Another Way BPA PO Box 820152 Vancouver, WA 98682 FOIA BPA-2013-00484-F Dear Mr. van Dijk: Thank you for your request for records...

  12. BPA 2011-00359-FOIA Response

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    4, 2011 In reply refer to: DK-7 Mr. Richard van Dijk Another Way BPA P.O. Box 820152 Vancouver, WA 98682 RE: FOIA BPA-2011-00359-F Dear Mr. van Dijk: This is a final response to...

  13. CX-006783: Categorical Exclusion Determination

    Energy.gov [DOE]

    Ross Complex Fiber Optic Cable Install by Comcast CommunicationsCX(s) Applied: B4.7Date: 08/30/2011Location(s): Vancouver, WashingtonOffice(s): Bonneville Power Administration

  14. CX-006786: Categorical Exclusion Determination

    Energy.gov [DOE]

    Ross Control House Seismic UpgradesCX(s) Applied: B2.5Date: 09/02/2011Location(s): Vancouver, WashingtonOffice(s): Bonneville Power Administration

  15. BPA-2011-00768-FOIA Response

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    3, 2011 In reply refer to: DK-7 Ms. Leslie Stewart Bell Another Way BPA PO Box 820152, Vancouver, WA 98682 RE: FOIA BPA-2011-00768-F Dear Ms. Stewart-Bell: This is a final...

  16. BPA-2011-00768-FOIA Correspondence

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    8, 2011 In reply refer to: DK Leslie Stewart Bell P.O. Box 820152 Vancouver, WA 98682 RE: FOIA BPA-2011-00768-F Dear Ms. Bell: Thank you for your request for information that you...

  17. BPA-2011-00768-FOIA Request

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    AM To: FOIA Subject: FOIA Request The following is a New FOIA request: Name: Leslie Stewart Bell Organization: Another Way BPA Address: PO Box 820152 Vancouver, WA 98682 Phone:...

  18. BPA-2010-01696-FOIA Response

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Eric Hansen Spectron Group 500 Broadway Street, Suite 260 Vancouver, WA 98660 RE: BPA-2010-01696-F Dear Mr. Hansen: This is the final response to your request for information that...

  19. BPA-2010-00794-FOIA Correspondence

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    5, 2010 In reply refer to: DK-7 David W. Meyer Attorney at Law Bullivant, Houser, Bailey PC 805 Broadway Street, Suite 400 Vancouver, WA 98660-3310 RE: FOIA BPA-2010-00794-F Dear...

  20. BPA-2010-01043-FOIA Correspondence

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    1, 2010 In reply refer to: DK-7 David W. Meyer Attorney at Law Bullivant, Houser, Bailey, PC 805 Broadway Street, Suite 400 Vancouver, WA 98660-3310 RE: BPA-2010-01043-F Dear Mr....

  1. Microsoft Word - BPA-2010-01043-FResponse.doc

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    25, 2010 In reply refer to: DK-7 David W. Meyer Attorney at Law Bullivant, Houser, Bailey, PC 805 Broadway Street, Suite 400 Vancouver, WA 98660-3310 RE: BPA-2010-01043-F Dear Mr....

  2. Public Utilities Specialist (Real Time Transmission Duty Scheduler)

    Energy.gov [DOE]

    LOCATION INFORMATION: THESE POSITIONS WILL BE LOCATED IN VANCOUVER, WA FOR UP TO ONE (1) YEAR FOR AN INITIAL TRAINING PERIOD. AFTER THE INITIAL TRAINING PERIOD, YOU WILL BE REQUIRED TO WORK FULL...

  3. Veterans, Guard, Reserve and Eligible Spouses Hiring Event |...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Spouses Hiring Event Veterans, Guard, Reserve and Eligible Spouses Hiring Event May 13, 2016 9:00AM to 2:00PM EDT Armed Forces Reserve Center, Vancouver, WA Contact Ed Agodoa

  4. Accelrate Power Systems | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Systems Place: Vancouver, British Columbia, Canada Zip: V6E 4G1 Product: High Speed Battery Charger Technology. Coordinates: 49.26044, -123.114034 Show Map Loading map......

  5. Clean Power Concepts | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Concepts Place: Vancouver, British Columbia, Canada Zip: V6B 1G1 Sector: Hydro, Solar, Wind energy Product: Clean Power aims to be a one-stop shop for retail, business-to-business...

  6. Electrical Engineer

    Energy.gov [DOE]

    Up to three positions may be filled at one or both of the following duty locations. Duty location to be determined at time of selection. Vancouver WA: https://www.opm.gov/policy-data-oversight/pay...

  7. BPA-2011-00503-FOIA Request

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Email: rchapman Description of Request: Latest revision of plan and profile drawings serial numbered 2137 and 2178 of the Vancouver -Kelso line operated as Ross-Lexington No. 1...

  8. BPA-2010-02021-FOIA Response

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    5, 2010 In reply refer to: DK-7 Albert F. Schlotfeldt Attorney at Law Duggan Schlotfeldt & Welch, PLLC 900 Washington Street, Suite 1020 Vancouver, WA 98666-0570 RE: FOIA...

  9. BPA-2010-02021-FOIA Correspondence

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    3, 2010 In reply refer to: DK-7 Albert F. Schlotfeldt Duggan, Schlotfeldt & Welch, PLLC 900 Washington Street, Suite 1020 Vancouver, WA 98666-0570 RE: BPA-2010-02021-F Dear Mr....

  10. CX-000016: Categorical Exclusion Determination

    Energy.gov [DOE]

    Ross-Lexington #1 Meter ProjectCX(s) Applied: B3.1Date: 12/17/2009Location(s): Vancouver, WashingtonOffice(s): Bonneville Power Administration

  11. Photo Gallery - Hanford Site

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Recovery Act 284 West Boiler Demolition 284 West Boiler Demolition 284 West Boiler Demolition 284 West Boiler Demolition 284 West Boiler Demolition 284 West Boiler Demolition 284 West Boiler Demolition 284 West Boiler Demolition 284 West Boiler Demolition 284 West Boiler Demolition 284 West Boiler Demolition 284 West Boiler Demolition BC Control Area Last Truckload BC Control Area Last Truckload BC Control Area Before Remediation BC Control Area Before Remediation BC Control Area After

  12. Enhanced Solar Energy Absorption by Internally-mixed Black Carbon in Snow Grains

    SciTech Connect

    Flanner, M. G.; Liu, Xiaohong; Zhou, Cheng; Penner, Joyce E.; Jiao, C.

    2012-05-30

    Here we explore light absorption by snowpack containing black carbon (BC) particles residing within ice grains. Basic considerations of particle volumes and BC/snow mass concentrations show that there are generally 0:05-109 BC particles for each ice grain. This suggests that internal BC is likely distributed as multiple inclusions within ice grains, and thus the dynamic effective medium approximation (DEMA) (Chylek and Srivastava, 1983) is a more appropriate optical representation for BC/ice composites than coated-sphere or standard mixing approximations. DEMA calculations show that the 460 nm absorption cross-section of BC/ice composites, normalized to the mass of BC, is typically enhanced by factors of 1.8-2.1 relative to interstitial BC. BC effective radius is the dominant cause of variation in this enhancement, compared with ice grain size and BC volume fraction. We apply two atmospheric aerosol models that simulate interstitial and within-hydrometeor BC lifecycles. Although only {approx}2% of the atmospheric BC burden is cloud-borne, 71-83% of the BC deposited to global snow and sea-ice surfaces occurs within hydrometeors. Key processes responsible for within-snow BC deposition are development of hydrophilic coatings on BC, activation of liquid droplets, and subsequent snow formation through riming or ice nucleation by other species and aggregation/accretion of ice particles. Applying deposition fields from these aerosol models in offline snow and sea-ice simulations, we calculate that 32-73% of BC in global surface snow resides within ice grains. This fraction is smaller than the within-hydrometeor deposition fraction because meltwater flux preferentially removes internal BC, while sublimation and freezing within snowpack expose internal BC. Incorporating the DEMA into a global climate model, we simulate increases in BC/snow radiative forcing of 43-86%, relative to scenarios that apply external optical properties to all BC. We show that snow metamorphism

  13. Wind flow in the Fraser Valley as measured by a pulsed CO{sub 2} Doppler lidar

    SciTech Connect

    Olivier, L.D.; Banta, R.M.; Hardesty, R.M.

    1994-12-31

    The Vancouver, British Columbia metropolitan area, with a population close to 1.5 million people, experiences high levels of tropospheric ozone during the summer months. The transport of pollution, including tropospheric ozone, in the Vancouver area, is influenced by a local land/sea breeze circulation, the valley flows associated with the Lower Fraser River Valley to the east of the city, and the complex terrain to the north and northeast of the city. In July and August of 1993, an experiment was conducted in the Vancouver area to assess the distribution and transport of tropospheric ozone. Wind flow and aerosol measurements were obtained with a pulsed CO(sub 2) Doppler lidar and wind fields and their interactions with the complex terrain were mapped. The combination of Doppler lidar measurements of wind velocity and backscattered signal intensity, obtained simultaneously, will help identify wind flow patterns that enhanced the transport of urban pollution from the city of Vancouver to the Lower Fraser River Valley, and the possible recirculation of these pollutants back into Vancouver.

  14. Free Boundary, High Beta Equilibrium in a Large Aspect Ratio...

    Office of Scientific and Technical Information (OSTI)

    ... B.C. Stratton, E.J. Synakowski, G. Taylor, R.M. Wieland, M.C. Zarnstorff, J. ... B.C. Stratton, E.J. Synakowski, G. Taylor, R.M. Wieland, M.C. Zarnstorff, J. ...

  15. Search for: All records | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    ... FF is also the dominant local source type for BC column burden, deposition, and near-surface BC, while for all distant source regions combined the contribution of biomassbiofuel ...

  16. SP2 Deployment at Boston College-Aerodyne-Led Coated Black Carbon...

    Office of Scientific and Technical Information (OSTI)

    Coated Black Carbon Study (BC4) Final Campaign Summary Citation Details In-Document Search Title: SP2 Deployment at Boston College-Aerodyne-Led Coated Black Carbon Study (BC4) ...

  17. Impact Evaluation of the FY2012-13 Site-Specific Savings Portfolio

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    17 shows the distribution of the BC ratios within each of the domains. Two measures had positive benefits but negative costs which resulted in an infinite value for the BC...

  18. Bonneville Power Administration

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    In reply refer to: PGPO Renata Kurschner Director, Generation Resource Management BC Hydro and Power Authority 691 1 Southpoint Drive, El5 Burnaby, B.C., Canada V3N 4 x 8 Dear...

  19. EIS-0170-SA-01: Supplement Analysis

    Energy.gov [DOE]

    System Operation Review EIS, Bonneville Power Administration, and B.C. Hydro and Power Authority, British Columbia, Canada

  20. SP2 Deployment at Boston College-Aerodyne-Led Coated Black Carbon Study

    Office of Scientific and Technical Information (OSTI)

    (BC4) Final Campaign Summary (Technical Report) | SciTech Connect SP2 Deployment at Boston College-Aerodyne-Led Coated Black Carbon Study (BC4) Final Campaign Summary Citation Details In-Document Search Title: SP2 Deployment at Boston College-Aerodyne-Led Coated Black Carbon Study (BC4) Final Campaign Summary The main objective of the Boston College-Aerodyne led laboratory study (BC4) was to measure the optical properties of black carbon (BC) particles from a diffusion flame directly and

  1. Variation of the radiative properties during black carbon aging: theoretical and experimental intercomparison

    DOE PAGES [OSTI]

    He, C.; Liou, K.-N.; Takano, Y.; Zhang, R.; Zamora, M. L.; Yang, P.; Li, Q.; Leung, L. R.

    2015-07-20

    A theoretical black carbon (BC) aging model is developed to account for three typical evolution stages, namely, freshly emitted aggregates, coated BC by soluble material, and BC particles undergoing further hygroscopic growth. The geometric-optics surface-wave (GOS) approach is employed to compute the BC single-scattering properties at each aging stage, which are subsequently compared with laboratory measurements. Theoretical calculations are consistent with measurements in extinction and absorption cross sections for fresh BC aggregates, but overestimate the scattering cross sections for BC mobility diameters of 155, 245, and 320 nm, because of uncertainties associated with theoretical calculations for small particles as wellmore » as laboratory scattering measurements. The measured optical cross sections for coated BC by sulfuric acid and for those undergoing further hygroscopic growth are captured by theoretical calculations using a concentric core-shell structure, with differences of less than 20 %. This suggests that the core-shell shape represents the realistic BC coating morphology reasonably well in this case, which is consistent with the observed strong structure compaction during aging. We find that the absorption and scattering properties of fresh BC aggregates vary by up to 60 % due to uncertainty in the BC refractive index, which, however, is a factor of two smaller in the case of coated BC particles. Sensitivity analyses on the BC morphology show that the optical properties of fresh BC aggregates are more sensitive to fractal dimension than primary spherule size. The absorption and scattering cross sections of coated BC particles vary by more than a factor of two due to different coating structures. We find an increase of 20–250 % in absorption and a factor of 3–15 in scattering during aging, significantly depending on coating morphology and aging stages. Applying the aging model to CalNex 2010 field measurements, we show that the resulting BC

  2. Modelled Black Carbon Radiative Forcing and Atmospheric Lifetime in AeroCom Phase II Constrained by Aircraft Observations

    SciTech Connect

    Samset, B. H.; Myhre, G.; Herber, Andreas; Kondo, Yutaka; Li, Shao-Meng; Moteki, N.; Koike, Makoto; Oshima, N.; Schwarz, Joshua P.; Balkanski, Y.; Bauer, S.; Bellouin, N.; Berntsen, T.; Bian, Huisheng; Chin, M.; Diehl, Thomas; Easter, Richard C.; Ghan, Steven J.; Iversen, T.; Kirkevag, A.; Lamarque, Jean-Francois; Lin, Guang; Liu, Xiaohong; Penner, Joyce E.; Schulz, M.; Seland, O.; Skeie, R. B.; Stier, P.; Takemura, T.; Tsigaridis, Kostas; Zhang, Kai

    2014-11-27

    Black carbon (BC) aerosols absorb solar radiation, and are generally held to exacerbate global warming through exerting a positive radiative forcing1. However, the total contribution of BC to the ongoing changes in global climate is presently under debate2-8. Both anthropogenic BC emissions and the resulting spatial and temporal distribution of BC concentration are highly uncertain2,9. In particular, long range transport and processes affecting BC atmospheric lifetime are poorly understood, leading to large estimated uncertainty in BC concentration at high altitudes and far from emission sources10. These uncertainties limit our ability to quantify both the historical, present and future anthropogenic climate impact of BC. Here we compare vertical profiles of BC concentration from four recent aircraft measurement campaigns with 13 state of the art aerosol models, and show that recent assessments may have overestimated present day BC radiative forcing. Further, an atmospheric lifetime of BC of less than 5 days is shown to be essential for reproducing observations in transport dominated remote regions. Adjusting model results to measurements in remote regions, and at high altitudes, leads to a 25% reduction in the multi-model median direct BC forcing from fossil fuel and biofuel burning over the industrial era.

  3. Remote Automatic Material On-Line Sensor

    SciTech Connect

    Magnuson, Erik

    2005-12-20

    moisture ranging from 2% to over 140% (referenced to the wood's dry weight). Accuracy exceeded that offered by existing instrumentation when the moisture content was in excess of the fiber saturation point ({approx}20%). Accuracy was independent of the wood form: solid wood, wood chips or sawdust. The prototype NMR system was designed and built for incorporation and use in a beta test site. Beta testing is under way at the pilot plant operated by the Pulp and Paper Research Institute of Canada (PAPRICAN) in Vancouver, B.C. Other industries were also investigated. For example, laboratory testing demonstrated that low-field NMR is capable of measuring the hydrogen content of calcium oxide (quicklime). Hydrogen content measurement can be done both rapidly (on the order of 1 second) and nondestructively. Measurement of moisture in quicklime affects energy consumption in the steel industry. Further advances in system electronics, ongoing under DOD support, will enable yet more substantial system cost reductions over the prototype system, opening up a wider range of utility.

  4. CX-001288: Categorical Exclusion Determination

    Energy.gov [DOE]

    Energy Efficiency Retrofits and Upgrades, and Purchase Electrical VehiclesCX(s) Applied: A1, B1.32, B2.5, B5.1Date: 11/30/2009Location(s): Vancouver, WashingtonOffice(s): Energy Efficiency and Renewable Energy

  5. JPRS report: Arms control, [October 16, 1989

    SciTech Connect

    1989-10-16

    This report contains translations of articles and/or broadcasts on arms control. Titles include: Warsaw Pact Military Council Convenes; Kostov Speaks at Disarmament Session; Chemical Weapons Reduction Proposals Welcomed; Fischer Asks for Arms Cuts in UN Speech; India Succeeds in Another `Prithvi` Test Firing; Central Europe Chemical Weapons-Free Zone; Vancouver SUN Urges Chemical Weapons Treaty; and others.

  6. CX-000011: Categorical Exclusion Determination

    Energy.gov [DOE]

    Transfer of Puget Sound Energy (PSE), Inc.'s Mint Farm Energy Center, LLCCX(s) Applied: B4.1, B4.6Date: 11/30/2009Location(s): Vancouver, WashingtonOffice(s): Bonneville Power Administration

  7. CX-001184: Categorical Exclusion Determination

    Energy.gov [DOE]

    Hopkins Ridge Generation Plant - Bonneville Power Administration Enters into a Balancing Authority Area Service Agreement with Puget Sound Energy, Inc.CX(s) Applied: B4.1, B4.6Date: 03/09/2010Location(s): Columbia County, Vancouver, CandaOffice(s): Bonneville Power Administration

  8. Metabolic Engineering X Conference

    SciTech Connect

    Flach, Evan

    2015-05-07

    The International Metabolic Engineering Society (IMES) and the Society for Biological Engineering (SBE), both technological communities of the American Institute of Chemical Engineers (AIChE), hosted the Metabolic Engineering X Conference (ME-X) on June 15-19, 2014 at the Westin Bayshore in Vancouver, British Columbia. It attracted 395 metabolic engineers from academia, industry and government from around the globe.

  9. BPA-2010-02021-FOIA Request

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    . 1 Ir:; WV0 6PA' I O O2o2 * s * o . o Du Schlo g t a f n eldt 900 Washington Street Albert F. 5chlotfeldt * Suite 1020 * PO BoK 570 Direct 360-737-1460 &WelchPLLC Vancouver, WA...

  10. Evaluation of Preindustrial to Present-day Black Carbon and its Albedo Forcing from Atmospheric Chemistry and Climate Model Intercomparison Project (ACCMIP)

    SciTech Connect

    Lee, Y. H.; Lamarque, J.-F.; Flanner, M. G.; Jiao, C.; Shindell, Drew; Berntsen, T.; Bisiauxs, M.; Cao, J.; Collins, W. J.; Curran, M.; Edwards, R.; Faluvegi, G.; Ghan, Steven J.; Horowitz, L.; McConnell, J.R.; Ming, J.; Myhre, G.; Nagashima, T.; Naik, Vaishali; Rumbold, S.; Skeie, R. B.; Sudo, K.; Takemura, T.; Thevenon, F.; Xu, B.; Yoon, Jin-Ho

    2013-03-05

    As a part of the Atmospheric Chemistry and Climate Model Intercomparison Project (ACCMIP), we evaluate the historical black carbon (BC) aerosols simulated by 8 ACCMIP models against the observations including 12 ice core records, a long-term surface mass concentrations and recent Arctic BC snowpack measurements. We also estimate BC albedo forcing by performing additional simulations using the NCAR Community Land and Sea-Ice model 4 with prescribed meteorology from 1996-2000, which includes the SNICAR BC-snow model. We evaluated the vertical profile of BC snow concentrations from these offline simulations to using recent BC snowpack measurements. Despite using the same BC emissions, global BC burden differs by approximately a factor of 3 among models due to the differences in aerosol removal parameterizations and simulated meteorology among models; 34 Gg to 103 Gg in 1850 and 82 Gg to 315 Gg in 2000. However,models agree well on 2.5~3 times increase in the global BC burden from preindustrial to present-day, which matches with the 2.5 times increase in BC emissions. We find a large model diversity at both NH and SH high latitude regions for BC burden and at SH high latitude regions for deposition fluxes. The ACCMIP simulations match the observed BC mass concentrations well in Europe and North America except at Jungfrauch and Ispra. However, the models fail to capture the Arctic BC seasonality due tosevere underestimations during winter and spring. Compared to recent snowpack measurements, the simulated vertically resolved BC snow concentrations are, on average, within a factor of 2-3 of observations except for Greenland and Arctic Ocean. However, model and observation differ widely due to missing interannual variations in emissions and possibly due to the choice of the prescribed meteorology period (i.e., 1996-2000).

  11. Quantification of black carbon mixing state from traffic: Implications for aerosol optical properties

    DOE PAGES [OSTI]

    Willis, Megan D.; Healy, Robert M.; Riemer, Nicole; West, Matthew; Wang, Jon M.; Jeong, Cheol -Heon; Wenger, John C.; Evans, Greg J.; Abbatt, Jonathan P. D.; Lee, Alex K. Y.

    2016-04-14

    The climatic impacts of black carbon (BC) aerosol, an important absorber of solar radiation in the atmosphere, remain poorly constrained and are intimately related to its particle-scale physical and chemical properties. Using particle-resolved modelling informed by quantitative measurements from a soot-particle aerosol mass spectrometer, we confirm that the mixing state (the distribution of co-emitted aerosol amongst fresh BC-containing particles) at the time of emission significantly affects BC-aerosol optical properties even after a day of atmospheric processing. Both single particle and ensemble aerosol mass spectrometry observations indicate that BC near the point of emission co-exists with hydrocarbon-like organic aerosol (HOA) inmore » two distinct particle types: HOA-rich and BC-rich particles. The average mass fraction of black carbon in HOA-rich and BC-rich particle classes was  < 0.1 and 0.8, respectively. Notably, approximately 90 % of BC mass resides in BC-rich particles. This new measurement capability provides quantitative insight into the physical and chemical nature of BC-containing particles and is used to drive a particle-resolved aerosol box model. Lastly, significant differences in calculated single scattering albedo (an increase of 0.1) arise from accurate treatment of initial particle mixing state as compared to the assumption of uniform aerosol composition at the point of BC injection into the atmosphere.« less

  12. Quantifying sources of black carbon in Western North America using observationally based analysis and an emission tagging technique in the Community Atmosphere Model

    DOE PAGES [OSTI]

    Zhang, R.; Wang, H.; Hegg, D. A.; Qian, Y.; Doherty, S. J.; Dang, C.; Ma, P.-L.; Rasch, P. J.; Fu, Q.

    2015-05-04

    The Community Atmosphere Model (CAM5), equipped with a technique to tag black carbon (BC) emissions by source regions and types, has been employed to establish source-receptor relationships for atmospheric BC and its deposition to snow over Western North America. The CAM5 simulation was conducted with meteorological fields constrained by reanalysis for year 2013 when measurements of BC in both near-surface air and snow are available for model evaluation. We find that CAM5 has a significant low bias in predicted mixing ratios of BC in snow but only a small low bias in predicted atmospheric concentrations over the Northwest USA andmore » West Canada. Even with a strong low bias in snow mixing ratios, radiative transfer calculations show that the BC-in-snow darkening effect is substantially larger than the BC dimming effect at the surface by atmospheric BC. Local sources contribute more to near-surface atmospheric BC and to deposition than distant sources, while the latter are more important in the middle and upper troposphere where wet removal is relatively weak. Fossil fuel (FF) is the dominant source type for total column BC burden over the two regions. FF is also the dominant local source type for BC column burden, deposition, and near-surface BC, while for all distant source regions combined the contribution of biomass/biofuel (BB) is larger than FF. An observationally based Positive Matrix Factorization (PMF) analysis of the snow-impurity chemistry is conducted to quantitatively evaluate the CAM5 BC source-type attribution. While CAM5 is qualitatively consistent with the PMF analysis with respect to partitioning of BC originating from BB and FF emissions, it significantly underestimates the relative contribution of BB. In addition to a possible low bias in BB emissions used in the simulation, the model is likely missing a significant source of snow darkening from local soil found in the observations.« less

  13. Quantifying sources of black carbon in Western North America using observationally based analysis and an emission tagging technique in the Community Atmosphere Model

    SciTech Connect

    Zhang, Rudong; Wang, Hailong; Hegg, D. A.; Qian, Yun; Doherty, Sarah J.; Dang, Cheng; Ma, Po-Lun; Rasch, Philip J.; Fu, Qiang

    2015-11-18

    The Community Atmosphere Model (CAM5), equipped with a technique to tag black carbon (BC) emissions by source regions and types, has been employed to establish source-receptor relationships for atmospheric BC and its deposition to snow over Western North America. The CAM5 simulation was conducted with meteorological fields constrained by reanalysis for year 2013 when measurements of BC in both near-surface air and snow are available for model evaluation. We find that CAM5 has a significant low bias in predicted mixing ratios of BC in snow but only a small low bias in predicted atmospheric concentrations over the Northwest USA and West Canada. Even with a strong low bias in snow mixing ratios, radiative transfer calculations show that the BC-in-snow darkening effect is substantially larger than the BC dimming effect at the surface by atmospheric BC. Local sources contribute more to near-surface atmospheric BC and to deposition than distant sources, while the latter are more important in the middle and upper troposphere where wet removal is relatively weak. Fossil fuel (FF) is the dominant source type for total column BC burden over the two regions. FF is also the dominant local source type for BC column burden, deposition, and near-surface BC, while for all distant source regions combined the contribution of biomass/biofuel (BB) is larger than FF. An observationally based Positive Matrix Factorization (PMF) analysis of the snow-impurity chemistry is conducted to quantitatively evaluate the CAM5 BC source-type attribution. While CAM5 is qualitatively consistent with the PMF analysis with respect to partitioning of BC originating from BB and FF emissions, it significantly underestimates the relative contribution of BB. In addition to a possible low bias in BB emissions used in the simulation, the model is likely missing a significant source of snow darkening from local soil found in the observations.

  14. Black Carbon Concentrations and Diesel Vehicle Emission FactorsDerived from Coefficient of Haze Measurements in California:1967-2003

    SciTech Connect

    Kirchstetter, Thomas W.; Aguiar, Jeffery; Tonse, Shaheen; Novakov, T.

    2007-10-01

    We have derived ambient black carbon (BC) concentrations and estimated emission factors for on-road diesel vehicles from archived Coefficient of Haze (COH) data that was routinely collected beginning in 1967 at 11 locations in the San Francisco Bay Area. COH values are a measure of the attenuation of light by particles collected on a white filter, and available data indicate they are proportional to BC concentrations measured using the conventional aethalometer. Monthly averaged BC concentrations are up to five times greater in winter than summer, and, consequently, so is the population's exposure to BC. The seasonal cycle in BC concentrations is similar for all Bay Area sites, most likely due to area-wide decreased pollutant dispersion during wintertime. A strong weekly cycle is also evident, with weekend concentrations significantly lower than weekday concentrations, consistent with decreased diesel traffic volume on weekends. The weekly cycle suggests that, in the Bay Area, diesel vehicle emissions are the dominant source of BC aerosol. Despite the continuous increase in diesel fuel consumption in California, annual Bay Area average BC concentrations decreased by a factor of {approx}3 from the late 1960s to the early 2000s. Based on estimated annual BC concentrations, on-road diesel fuel consumption, and recent measurements of on-road diesel vehicle BC emissions, diesel BC emission factors decreased by an order of magnitude over the study period. Reductions in the BC emission factor reflect improved engine technology, emission controls and changes in diesel fuel composition. A new BC monitoring network is needed to continue tracking ambient BC trends because the network of COH monitors has recently been retired.

  15. Black Carbon Concentrations and Diesel Vehicle Emission Factors Derived from Coefficient of Haze Measurements in California: 1967-2003

    SciTech Connect

    Tast, CynthiaL; Kirchstetter, Thomas W.; Aguiar, Jeffery; Tonse, Shaheen; Novakov, T.; Fairley, David

    2007-11-09

    We have derived ambient black carbon (BC) concentrations and estimated emission factors for on-road diesel vehicles from archived Coefficient of Haze (COH) data that was routinely collected beginning in 1967 at 11 locations in the San Francisco Bay Area. COH values are a measure of the attenuation of light by particles collected on a white filter, and available data indicate they are proportional to BC concentrations measured using the conventional aethalometer. Monthly averaged BC concentrations are up to five times greater in winter than summer, and, consequently, so is the population?s exposure to BC. The seasonal cycle in BC concentrations is similar for all Bay Area sites, most likely due to area-wide decreased pollutant dispersion during wintertime. A strong weekly cycle is also evident, with weekend concentrations significantly lower than weekday concentrations, consistent with decreased diesel traffic volume on weekends. The weekly cycle suggests that, in the Bay Area, diesel vehicle emissions are the dominant source of BC aerosol. Despite the continuous increase in diesel fuel consumption in California, annual Bay Area average BC concentrations decreased by a factor of ~;;3 from the late 1960s to the early 2000s. Based on estimated annual BC concentrations, on-road diesel fuel consumption, and recent measurements of on-road diesel vehicle BC emissions, diesel BC emission factors decreased by an order of magnitude over the study period. Reductions in the BC emission factor reflect improved engine technology, emission controls and changes in diesel fuel composition. A new BC monitoring network is needed to continue tracking ambient BC trends because the network of COH monitors has recently been retired.

  16. Quantifying sources of black carbon in western North America using observationally based analysis and an emission tagging technique in the Community Atmosphere Model

    DOE PAGES [OSTI]

    Zhang, R.; Wang, H.; Hegg, D. A.; Qian, Y.; Doherty, S. J.; Dang, C.; Ma, P.-L.; Rasch, P. J.; Fu, Q.

    2015-11-18

    The Community Atmosphere Model (CAM5), equipped with a technique to tag black carbon (BC) emissions by source regions and types, has been employed to establish source–receptor relationships for atmospheric BC and its deposition to snow over western North America. The CAM5 simulation was conducted with meteorological fields constrained by reanalysis for year 2013 when measurements of BC in both near-surface air and snow are available for model evaluation. We find that CAM5 has a significant low bias in predicted mixing ratios of BC in snow but only a small low bias in predicted atmospheric concentrations over northwestern USA and westernmore » Canada. Even with a strong low bias in snow mixing ratios, radiative transfer calculations show that the BC-in-snow darkening effect is substantially larger than the BC dimming effect at the surface by atmospheric BC. Local sources contribute more to near-surface atmospheric BC and to deposition than distant sources, while the latter are more important in the middle and upper troposphere where wet removal is relatively weak. Fossil fuel (FF) is the dominant source type for total column BC burden over the two regions. FF is also the dominant local source type for BC column burden, deposition, and near-surface BC, while for all distant source regions combined the contribution of biomass/biofuel (BB) is larger than FF. An observationally based positive matrix factorization (PMF) analysis of the snow-impurity chemistry is conducted to quantitatively evaluate the CAM5 BC source-type attribution. While CAM5 is qualitatively consistent with the PMF analysis with respect to partitioning of BC originating from BB and FF emissions, it significantly underestimates the relative contribution of BB. In addition to a possible low bias in BB emissions used in the simulation, the model is likely missing a significant source of snow darkening from local soil found in the observations.« less

  17. Variation of the radiative properties during black carbon aging: theoretical and experimental intercomparison

    DOE PAGES [OSTI]

    He, C.; Liou, K.-N.; Takano, Y.; Zhang, R.; Levy Zamora, M.; Yang, P.; Li, Q.; Leung, L. R.

    2015-10-28

    A theoretical black carbon (BC) aging model is developed to account for three typical evolution stages, namely, freshly emitted aggregates, BC coated by soluble material, and BC particles undergoing further hygroscopic growth. The geometric-optics surface-wave (GOS) approach is employed to compute the BC single-scattering properties at each aging stage, which are subsequently compared with laboratory measurements. Theoretical calculations are consistent with measurements in extinction and absorption cross sections for fresh BC aggregates with different BC sizes (i.e., mobility diameters of 155, 245, and 320 nm), with differences of ≤ 25 %. The measured optical cross sections for BC coated bymore » sulfuric acid and for that undergoing further hygroscopic growth are generally captured (differences < 30 %) by theoretical calculations using a concentric core-shell structure, with an overestimate in extinction and absorption of the smallest BC size and an underestimate in scattering of the largest BC size. We find that the absorption and scattering cross sections of fresh BC aggregates vary by 20–40 and 50–65 %, respectively, due to the use of upper (1.95–0.79i) and lower (1.75–0.63i) bounds of BC refractive index, while the variations are < 20 % in absorption and < 50 % in scattering in the case of coated BC particles. Sensitivity analyses of the BC morphology show that the optical properties of fresh BC aggregates are more sensitive to fractal dimension than primary spherule size. The absorption and scattering cross sections of coated BC particles vary by more than a factor of 2 due to different coating structures. We find an increase of 20–250 % in absorption and a factor of 3–15 in scattering during aging, significantly depending on coating morphology and aging stages. This study suggests that an accurate estimate of BC radiative effects requires the incorporation of a dynamic BC aging process that accounts for realistic coating structures in

  18. Variation of Radiative Properties During Black Carbon Aging. Theoretical and Experimental Intercomparison

    SciTech Connect

    He, Cenlin; Liou, K. N.; Takano, Y.; Zhang, Renyi; Zamora, Misty L.; Yang, Ping; Li, Qinbin; Leung, Lai-Yung R.

    2015-10-28

    A theoretical model is developed to account for black carbon (BC) aging during three major evolution stages, i.e., freshly emitted aggregates, coated particles by soluble materials, and those after further hygroscopic growth. The geometric-optics surface-wave approach is employed to compute BC single-scattering properties at each stage, which are compared with laboratory measurements. Theoretical predictions using input parameters determined from experiments are consistent with measurements in extinction and scattering cross sections for coated BC (within 30 20%) and absorption enhancement from coating (within 15%). The calculated scattering cross sections of fresh BC aggregates are larger than those experimentally measured, because of uncertainties in measurements and calculations. We apply the aging model to compute BC direct radiative forcing (DRF) over the LA Basin using the CalNex 2010 field measurements. Our results demonstrate that accounting for the interactive radiative properties during BC aging is essential in obtaining reliable DRF estimates within a regional context.

  19. Characterization of Black Carbon Mixing State

    DOE Data Explorer

    Sedlacek, Arthur; S, Satheesh; Springston, Stephen

    2013-11-06

    This measurement characterizes the types of BC emissions that result in nearsurface BC containing particles in a region that is dominated by biomass and open pit/stove cooking. Specifically, examine three primary BC emission sources: (i) urban setting (e.g., fossil fuel emissions); and (ii) biomass burning. Source (i) are captured at the Indian Institute of Science (IISc) in Bangalore. Biomass emissions (ii) contains a series of 12 day measurement excursions to the rural area surrounding Bangalore.

  20. Characterization of Black Carbon Mixing State (Dataset) | Data Explorer

    Office of Scientific and Technical Information (OSTI)

    Characterization of Black Carbon Mixing State Title: Characterization of Black Carbon Mixing State This measurement characterizes the types of BC emissions that result in near-surface BC- containing particles in a region that is dominated by biomass and open pit/stove cooking. Specifically, examine three primary BC emission sources: (i) urban setting (e.g., fossil fuel emissions); and (ii) biomass burning. Source (i) are captured at the Indian Institute of Science (IISc) in Bangalore. Biomass

  1. Microsoft PowerPoint - Recovery Fact Sheet rev4.ppt [Read-Only...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    under current regulatory documents and current prime contracts, allowing work to begin contaminants, remediate soil contamination in in the 100 BC Areas, expandimprove...

  2. L:LCB:lg

    Office of Legacy Management (LM)

    understand in admum, hovemar, that we till bc reluctant to JESUS additional liconm3e for production of lumin- ow paints exceptforpignenta to be wed exlwiwly inproduta having...

  3. 836.pdf

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    836 (706) LA-UR- Approved for public release; distribution is unlimited. Los Alamos ... problems, 3) establishing development guidelines, 4) implementation of periodic BC's, 5) ...

  4. Municipalities and Renewable Energy Opportunities | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Municipalities and Renewable Energy Opportunities Jump to: navigation, search BUILDING COMMUNITIES WITH RENEWABLE ENERGY --Rsiegent 20:06, 20 January 2010 (UTC) BC communities and...

  5. Bonneville Power Administration

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    agreement (Agreement) between the BC Hydro and Power uthority (BCH) and the Bonneville Power Administration (BP A), jointly the Parties, which BA for accounting purposes is...

  6. Where are They Now? In Search of Former Solar Decathlon Houses...

    Energy Saver

    Olympic Dreams for the Solar Decathlon: Zero energy West House, inspired by 2009 Team OntarioBC, was ... have reduced our carbon footprint through repurposed and recycled materials. ...

  7. Supplement Analyses (SA) | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Analysis System Operation Review EIS, Bonneville Power Administration, and B.C. Hydro and Power Authority, British Columbia, Canada June 19, 2002 EIS-0265-SA-83:...

  8. Fact Sheet Fact Sheet Fact Sheet Fact Sheet Fact Sheet Fact Sheet

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    negotiation of operational agreements that provide mutual benefits to the Bonneville Power Administration and BC Hydro. BPA is seeking to negotiate a non-Treaty storage...

  9. 1

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    BC content was measured in Moscow with an aethalometer AE-16. At ZSS, aerosol samples were collected on fiber filters around the clock, without breaks. Individual samples were ...

  10. Microsoft Word - OE AMI-SEC Requirements Document.doc

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... Utilities contributing to this effort include American Electric Power, Austin Energy, BC Hydro, Consumers Energy, Dominion, Duke Energy, Exelon, Kansas City Power & Light, Oncor, ...

  11. DOE/SC-ARM-15-032 ARM-ACME V: ARM Airborne Carbon

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... Airborne Carbon Measurements Project BC black carbon CARVE NASA Carbon in Arctic ... observations to regional scales, but focused on Alaska as a whole (Figure 2 and Figure 3). ...

  12. Quantifying sources, transport, deposition, and radiative forcing of black carbon over the Himalayas and Tibetan Plateau

    SciTech Connect

    Zhang, Rudong; Wang, Hailong; Qian, Yun; Rasch, Philip J.; Easter, Richard C.; Ma, Po-Lun; Singh, Balwinder; Huang, Jianping; Fu, Qiang

    2015-01-01

    Black carbon (BC)particles over the Himalayas and Tibetan Plateau (HTP), both airborne and those deposited on snow, have been shown to affect snowmelt and glacier retreat. Since BC over the HTP may originate from a variety of geographical regions and emission sectors, it is essential to quantify the source-receptor relationships of BC in order to understand the contributions of natural and anthropogenic emissions and provide guidance for potential mitigation actions. In this study, we use the Community Atmosphere Model version 5 (CAM5) with a newly developed source tagging technique, nudged towards the MERRA meteorological reanalysis, to characterize the fate of BC particles emitted from various geographical regions and sectors. Evaluated against observations over the HTP and surrounding regions, the model simulation shows a good agreement in the seasonal variation of the near-surface airborne BC concentrations, providing confidence to use this modeling framework for characterizing BC source- receptor relationships. Our analysis shows that the relative contributions from different geographical regions and source sectors depend on seasons and the locations in the HTP. The largest contribution to annual mean BC burden and surface deposition in the entire HTP region is from biofuel and biomass (BB) emissions in South Asia, followed by fossil fuel (FF) emissions from South Asia, then FF from East Asia. The same roles hold for all the seasonal means except for the summer when East Asia FF becomes more important. For finer receptor regions of interest, South Asia BB and FF have the largest impact on BC in Himalayas and Central Tibetan Plateau, while East Asia FF and BB contribute the most to Northeast Plateau in all seasons and Southeast Plateau in the summer. Central Asia and Middle East FF emissions have relatively more important contributions to BC reaching Northwest Plateau, especially in the summer. Although the HTP local emissions only contribute about 10% of BC in

  13. WS-J 14 Update Worksheet (8.2.2016).xlsx

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    4 Modification 558 HANFORD WASTE SITE ASSIGNMENT LIST Site Code Site Names Designated Area Assigned Contractor 100-B-1 100-B-1; Laydown Yard; Surface Chemical and Solid Waste Dumping Area 100B WCH 100-B-10 100-B-10; 107-B Basin Leak and Warm Springs 100B WCH 100-B-11 100-B-11; 115-B Tank; 115-B/C Caisson Site; 115-B/C Caisson Valve Pit; 115-BC Drywell; 115-BC Sump 100B WCH 100-B-12 100-B-12; Filter Box Radiological Materials Area (RMA) 100B WCH 100-B-14 100-B-14; 100-B Area Process and Sanitary

  14. WS-J 14 Update Worksheet(20April14).xlsx

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    4 Modification 350, Attachment 4 HANFORD WASTE SITE ASSIGNMENT LIST Site Code Site Names Designated Area Assigned Contractor 100-B-1 100-B-1; Laydown Yard; Surface Chemical and Solid Waste Dumping Area 100B WCH 100-B-10 100-B-10; 107-B Basin Leak and Warm Springs 100B WCH 100-B-11 100-B-11; 115-B Tank; 115-B/C Caisson Site; 115-B/C Caisson Valve Pit; 115-BC Drywell; 115-BC Sump 100B WCH 100-B-12 100-B-12; Filter Box Radiological Materials Area (RMA) 100B WCH 100-B-14 100-B-14; 100-B Area Process

  15. EM Contractor List.xls

    Office of Environmental Management (EM)

    Vrain Facility Improvements Project Idaho National Laboratory CD3A Sandia Corporation Lockheed Martin 001035 ID-0030B.C4 Accelerated Retrieval Project IX Idaho National Laboratory ...

  16. ARM - Field Campaign - Characterization of Black Carbon Mixing...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    the single particle soot photometer (SP2). The large uncertainty associated with black carbon (BC) direct forcing is due, in part, to the dependence of light absorption of...

  17. my title

    Office of Scientific and Technical Information (OSTI)

    Gschneidner, Jr.bc a School of Materials Science and Engineering, Zhejiang University, ... for various Mn-based compounds, e.g., direct exchange, double exchange, super ...

  18. Energy Conservation Standards for Manufactured Housing. Notice...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    EERE-2009-BT-BC-0021 RIN: 1904-AC11 Energy Conservation Standards for Manufactured ... which directs DOE to establish energy conservation standards for manufactured housing. ...

  19. LCLS CDR Glossary

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    C Glossary ACO Anneaux Collisions Orsay, 500 MeV storage ring, LURE, Orsay, France ADC Analog to Digital Converter ADONE 1.5 GeV storage ring, Frascati, Italy ALS Advanced Light Source (LBNL) AMPERES 3D Magnet Modeling Code ANL Argonne National Laboratory APS Advanced Photon Source (ANL) ASSET Accelerator Structure Setup ATF Accelerator Test Facility (BNL) BBO BaB 2 O 4 , Beta barium Borate BC1 Bunch Compressor 1 BC2 Bunch Compressor 2 BC2-ED Emittance Diagnostic Station following BC2 BCS Beam

  20. I'

    Office of Legacy Management (LM)

    ... records of all such discoveries and inventions and shall promptly furnish. the ... filed on suoh discoveries or inventions shall bc propared and prosecuted ...

  1. Toward a Minimal Representation of Aerosols in Climate Models...

    Office of Scientific and Technical Information (OSTI)

    and external mixing between aerosol components, treating numerous complicated aerosol ... black carbon (BC) with other aerosol components, merging of the MAM7 fine dust and fine ...

  2. Using an Explicit Emission Tagging Method in Global Modeling of Source-Receptor Relationships for Black Carbon in the Arctic: Variations, Sources and Transport Pathways

    SciTech Connect

    Wang, Hailong; Rasch, Philip J.; Easter, Richard C.; Singh, Balwinder; Zhang, Rudong; Ma, Po-Lun; Qian, Yun; Ghan, Steven J.; Beagley, Nathaniel

    2014-11-27

    We introduce an explicit emission tagging technique in the Community Atmosphere Model to quantify source-region-resolved characteristics of black carbon (BC), focusing on the Arctic. Explicit tagging of BC source regions without perturbing the emissions makes it straightforward to establish source-receptor relationships and transport pathways, providing a physically consistent and computationally efficient approach to produce a detailed characterization of the destiny of regional BC emissions and the potential for mitigation actions. Our analysis shows that the contributions of major source regions to the global BC burden are not proportional to the respective emissions due to strong region-dependent removal rates and lifetimes, while the contributions to BC direct radiative forcing show a near-linear dependence on their respective contributions to the burden. Distant sources contribute to BC in remote regions mostly in the mid- and upper troposphere, having much less impact on lower-level concentrations (and deposition) than on burden. Arctic BC concentrations, deposition and source contributions all have strong seasonal variations. Eastern Asia contributes the most to the wintertime Arctic burden. Northern Europe emissions are more important to both surface concentration and deposition in winter than in summer. The largest contribution to Arctic BC in the summer is from Northern Asia. Although local emissions contribute less than 10% to the annual mean BC burden and deposition within the Arctic, the per-emission efficiency is much higher than for major non-Arctic sources. The interannual variability (1996-2005) due to meteorology is small in annual mean BC burden and radiative forcing but is significant in yearly seasonal means over the Arctic. When a slow aging treatment of BC is introduced, the increase of BC lifetime and burden is source-dependent. Global BC forcing-per-burden efficiency also increases primarily due to changes in BC vertical distributions. The

  3. Carbonaceous aerosols recorded in a southeastern Tibetan glacier: analysis of temporal variations and model estimates of sources and radiative forcing

    SciTech Connect

    Wang, Mo; Xu, B.; Cao, J.; Tie, X.; Wang, Hailong; Zhang, Rudong; Qian, Yun; Rasch, Philip J.; Zhao, Shuyu; Wu, Guangjian; Zhao, Huabiao; Joswiak, Daniel R.; Li, Jiule; Xie, Ying

    2015-02-02

    High temporal resolution measurements of black carbon (BC) and organic carbon (OC) covering the time period of 1956–2006 in an ice core over the southeastern Tibetan Plateau show a distinct seasonal dependence of BC and OC with higher respective concentrations but a lower OC / BC ratio in the non-monsoon season than during the summer monsoon. We use a global aerosol-climate model, in which BC emitted from different source regions can be explicitly tracked, to quantify BC source–receptor relationships between four Asian source regions and the southeastern Tibetan Plateau as a receptor. The model results show that South Asia has the largest contribution to the present-day (1996–2005) mean BC deposition at the ice-core drilling site during the non-monsoon season (October to May) (81%) and all year round (74%), followed by East Asia (14% to the non-monsoon mean and 21% to the annual mean). The ice-core record also indicates stable and relatively low BC and OC deposition fluxes from the late 1950s to 1980, followed by an overall increase to recent years. This trend is consistent with the BC and OC emission inventories and the fuel consumption of South Asia (as the primary contributor to annual mean BC deposition). Moreover, the increasing trend of the OC / BC ratio since the early 1990s indicates a growing contribution of coal combustion and/or biomass burning to the emissions. The estimated radiative forcing induced by BC and OC impurities in snow has increased since 1980, suggesting an increasing potential influence of carbonaceous aerosols on the Tibetan glacier melting and the availability of water resources in the surrounding regions. Our study indicates that more attention to OC is merited because of its non-negligible light absorption and the recent rapid increases evident in the ice-core record.

  4. Carbonaceous aerosols recorded in a southeastern Tibetan glacier: analysis of temporal variations and model estimates of sources and radiative forcing

    DOE PAGES [OSTI]

    Wang, Mo; Xu, B.; Cao, J.; Tie, X.; Wang, Hailong; Zhang, Rudong; Qian, Yun; Rasch, Philip J.; Zhao, Shuyu; Wu, Guangjian; et al

    2015-02-02

    High temporal resolution measurements of black carbon (BC) and organic carbon (OC) covering the time period of 1956–2006 in an ice core over the southeastern Tibetan Plateau show a distinct seasonal dependence of BC and OC with higher respective concentrations but a lower OC / BC ratio in the non-monsoon season than during the summer monsoon. We use a global aerosol-climate model, in which BC emitted from different source regions can be explicitly tracked, to quantify BC source–receptor relationships between four Asian source regions and the southeastern Tibetan Plateau as a receptor. The model results show that South Asia hasmore » the largest contribution to the present-day (1996–2005) mean BC deposition at the ice-core drilling site during the non-monsoon season (October to May) (81%) and all year round (74%), followed by East Asia (14% to the non-monsoon mean and 21% to the annual mean). The ice-core record also indicates stable and relatively low BC and OC deposition fluxes from the late 1950s to 1980, followed by an overall increase to recent years. This trend is consistent with the BC and OC emission inventories and the fuel consumption of South Asia (as the primary contributor to annual mean BC deposition). Moreover, the increasing trend of the OC / BC ratio since the early 1990s indicates a growing contribution of coal combustion and/or biomass burning to the emissions. The estimated radiative forcing induced by BC and OC impurities in snow has increased since 1980, suggesting an increasing potential influence of carbonaceous aerosols on the Tibetan glacier melting and the availability of water resources in the surrounding regions. Our study indicates that more attention to OC is merited because of its non-negligible light absorption and the recent rapid increases evident in the ice-core record.« less

  5. Microsoft Word - GJPPGPracticesDraft.doc

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    INTRODUCTION: The idea behind using most janitorial products is to make places clean - not caustic, corrosive, contaminated, and costly. Many cleaning products on the market contain hazardous chemicals, use unnecessary dyes and fragrances, and have cumulative negative effects on the environment and its inhabitants - that includes us. To promote the safety of employees using cleaning products, other staff, the public, and the living systems around us, parks such as Yellowstone NP, Fort Vancouver

  6. Development and Demonstration of Hydrogen and Compressed Natural Gas (H/CNG) Blend Transit Buses: October 15, 2002-September 30, 2004

    Alternative Fuels and Advanced Vehicles Data Center

    Development and Demonstration of Hydrogen and Compressed Natural Gas (H/CNG) Blend Transit Buses October 15, 2002 - September 30, 2004 A. Del Toro SunLine Services Group Thousand Palms, California M. Frailey National Renewable Energy Laboratory Golden, Colorado F. Lynch Hydrogen Components Inc. Littleton, Colorado S. Munshi Westport Innovations Inc. Vancouver, British Columbia, Canada S. Wayne West Virginia University Morgantown, West Virginia Technical Report NREL/TP-540-38707 November 2005

  7. Mem. S.A.It. Vol.

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Mem. S.A.It. Vol. 76, 114 c SAIt 2005 Memorie della Polarization and energy content of parsec-scale AGN jets Maxim Lyutikov 1 , Vladimir Pariev 2,3 , Denise Gabuzda 4 1 University of British Columbia, Vancouver, Canada 2 University of Wisconsin Madison, Madison, USA and 3 Lebedev Physical Institute, Moscow, Russia 4 University College Cork, Cork, Ireland Abstract. Most of energy carried by relativistic AGN jets remains undetected until hun- dreds of kiloparsecs where interaction with

  8. Hydrogen and Fuel Cells Program Overview

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Hydrogen and Fuel Cells Program U.S. Department of Energy Hydrogen + Fuel Cells 2011 International Conference and Exhibition Vancouver, Canada May 17, 2011 Enable widespread commercialization of hydrogen and fuel cell technologies: * Early markets such as stationary power, lift trucks, and portable power * Mid-term markets such as residential CHP systems, auxiliary power units, fleets and buses * Long-term markets including mainstream transportation applications/light duty vehicles Updated

  9. RCC Contract No. DE-AC06-05RL14655 TABLE B.2 SCHEDULE OF QUANTITIES...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Fld. Rem.-100 BC Area Design 1 LS 702,783 702,783 Confirmatory Sampling Sites 1.03.01.01.03 Fld. Rem.-Conf Sampling Sites-100 BC 10 EA 838,517 838,517 Liquid Waste ...

  10. Enhanced light absorption by mixed source black and brown carbon particles in UK winter

    DOE PAGES [OSTI]

    Liu, Shang; Aiken, Allison C.; Gorkowski, Kyle; Dubey, Manvendra K.; Cappa, Christopher D.; Williams, Leah R.; Herndon, Scott C.; Massoli, Paola; Fortner, Edward C.; Chhabra, Puneet S.; et al

    2015-09-30

    We report that black carbon (BC) and light-absorbing organic carbon (brown carbon, BrC) play key roles in warming the atmosphere, but the magnitude of their effects remains highly uncertain. Theoretical modelling and laboratory experiments demonstrate that coatings on BC can enhance BC’s light absorption, therefore many climate models simply assume enhanced BC absorption by a factor of ~1.5. However, recent field observations show negligible absorption enhancement, implying models may overestimate BC’s warming. Here we report direct evidence of substantial field-measured BC absorption enhancement, with the magnitude strongly depending on BC coating amount. Increases in BC coating result from a combinationmore » of changing sources and photochemical aging processes. When the influence of BrC is accounted for, observationally constrained model calculations of the BC absorption enhancement can be reconciled with the observations. In conclusion, we find that the influence of coatings on BC absorption should be treated as a source and regionally specific parameter in climate models.« less

  11. Enhanced light absorption by mixed source black and brown carbon particles in UK winter

    SciTech Connect

    Liu, Shang; Aiken, Allison C.; Gorkowski, Kyle; Dubey, Manvendra K.; Cappa, Christopher D.; Williams, Leah R.; Herndon, Scott C.; Massoli, Paola; Fortner, Edward C.; Chhabra, Puneet S.; Brooks, William A.; Onasch, Timothy B.; Jayne, John T.; Worsnop, Douglas R.; China, Swarup; Sharma, Noopur; Mazzoleni, Claudio; Xu, Lu; Ng, Nga L.; Liu, Dantong; Allan, James D.; Lee, James D.; Fleming, Zoë L.; Mohr, Claudia; Zotter, Peter; Szidat, Sönke; Prévôt, André S. H.

    2015-09-30

    We report that black carbon (BC) and light-absorbing organic carbon (brown carbon, BrC) play key roles in warming the atmosphere, but the magnitude of their effects remains highly uncertain. Theoretical modelling and laboratory experiments demonstrate that coatings on BC can enhance BC’s light absorption, therefore many climate models simply assume enhanced BC absorption by a factor of ~1.5. However, recent field observations show negligible absorption enhancement, implying models may overestimate BC’s warming. Here we report direct evidence of substantial field-measured BC absorption enhancement, with the magnitude strongly depending on BC coating amount. Increases in BC coating result from a combination of changing sources and photochemical aging processes. When the influence of BrC is accounted for, observationally constrained model calculations of the BC absorption enhancement can be reconciled with the observations. In conclusion, we find that the influence of coatings on BC absorption should be treated as a source and regionally specific parameter in climate models.

  12. Supporting technology for enhanced oil recovery for thermal processes

    SciTech Connect

    Reid, T.B.; Bolivar, J.

    1997-12-01

    This report contains the results of efforts under the six tasks of the Ninth Amendment and Extension of Annex IV, Enhanced Oil Recovery Thermal Processes of the Venezuela/USA Agreement. The report is presented in sections (for each of the 6 tasks) and each section contains one or more reports prepared by various individuals or groups describing the results of efforts under each of the tasks. A statement of each task, taken from the agreement, is presented on the first page of each section. The tasks are numbered 62 through 67. The first, second, third, fourth fifth, sixth, seventh, eighth, and ninth reports on Annex IV, [Venezuela MEM/USA-DOE Fossil Energy Report IV-1, IV-2, IV-3, IV-4, IV-5, IV-6, IV-7, and IV-8 (DOE/BETC/SP-83/15, DOE/BC-84/6/SP, DOE/BC-86/2/SP, DOE/BC-87/2/SP, DOE/BC-90/1/SP, DOE/BC-90/1/SP) (DOE/BC-92/1/SP, DOE/BC-93/3/SP, and DOE/BC-95/3/SP)] contain the results from the first 61 tasks. Those reports are dated April 1983, August 1984, March 1986, July 1987, November 1988, October 1991, February 1993, and March 1995 respectively.

  13. Supporting Technology for Enhanced Oil Recovery-EOR Thermal Processes Report IV-12

    SciTech Connect

    Izequeido, Alexandor

    2001-04-01

    This report contains the results of efforts under the six tasks of the Ninth Amendment and Extension of Annex IV, Enhanced Oil Recovery Thermal Processes of the Venezuela/USA Agreement. The report is presented in sections (for each of the 6 tasks) and each section contains one or more reports prepared by various individuals or groups describing the results of efforts under each of the tasks. A statement of each task, taken from the agreement, is presented on the first page of each section. The tasks are numbered 62 through 67. The first, second, third, fourth, fifth, sixth, seventh, eight, and ninth reports on Annex IV, [Venezuela MEM/USA-DOE Fossil Energy Report IV-1, IV-2, IV-3, IV-4, IV-5, IV-6, IV-7, and IV-8 (DOE/BETC/SP-83/15, DOE/BC-84/6/SP, DOE/BC-86/2/SP, DOE/BC-87/2/SP, DOE/BC-89/1/SP, DOE/BC-90/1/SP) DOE/BC-92/1/SP, DOE/BC-93/3/SP, and DOE/BC-95/3/SP] contain the results from the first 61 tasks. Those reports are dated April 1983, August 1984, March 1986, July 1! 987, November 1988, December 1989, October 1991, February 1993, and March 1995 respectively.

  14. Confronting the “Indian summer monsoon response to black carbon aerosol” with the uncertainty in its radiative forcing and beyond

    DOE PAGES [OSTI]

    Kovilakam, Mahesh; Mahajan, Salil

    2016-06-28

    While black carbon aerosols (BC) are believed to modulate the Indian monsoons, the radiative forcing estimate of BC suffers from large uncertainties globally. In this paper, we analyze a suite of idealized experiments forced with a range of BC concentrations that span a large swath of the latest estimates of its global radiative forcing. Within those bounds of uncertainty, summer precipitation over the Indian region increases nearly linearly with the increase in BC burden. The linearity holds even as the BC concentration is increased to levels resembling those hypothesized in nuclear winter scenarios, despite large surface cooling over India andmore » adjoining regions. The enhanced monsoonal circulation is associated with a linear increase in the large-scale meridional tropospheric temperature gradient. The precipitable water over the region also increases linearly with an increase in BC burden, due to increased moisture transport from the Arabian sea to the land areas. The wide range of Indian monsoon response elicited in these experiments emphasizes the need to reduce the uncertainty in BC estimates to accurately quantify their role in modulating the Indian monsoons. Finally, the increase in monsoonal circulation in response to large BC concentrations contrasts earlier findings that the Indian summer monsoon may break down following a nuclear war.« less

  15. Black carbon aerosols and the third polar ice cap

    SciTech Connect

    Menon, Surabi; Koch, Dorothy; Beig, Gufran; Sahu, Saroj; Fasullo, John; Orlikowski, Daniel

    2010-04-15

    Recent thinning of glaciers over the Himalayas (sometimes referred to as the third polar region) have raised concern on future water supplies since these glaciers supply water to large river systems that support millions of people inhabiting the surrounding areas. Black carbon (BC) aerosols, released from incomplete combustion, have been increasingly implicated as causing large changes in the hydrology and radiative forcing over Asia and its deposition on snow is thought to increase snow melt. In India BC emissions from biofuel combustion is highly prevalent and compared to other regions, BC aerosol amounts are high. Here, we quantify the impact of BC aerosols on snow cover and precipitation from 1990 to 2010 over the Indian subcontinental region using two different BC emission inventories. New estimates indicate that Indian BC emissions from coal and biofuel are large and transport is expected to expand rapidly in coming years. We show that over the Himalayas, from 1990 to 2000, simulated snow/ice cover decreases by {approx}0.9% due to aerosols. The contribution of the enhanced Indian BC to this decline is {approx}36%, similar to that simulated for 2000 to 2010. Spatial patterns of modeled changes in snow cover and precipitation are similar to observations (from 1990 to 2000), and are mainly obtained with the newer BC estimates.

  16. Black Carbon Radiative Forcing over the Tibetan Plateau

    SciTech Connect

    He, Cenlin; Li, Qinbin; Liou, K. N.; Takano, Y.; Gu, Yu; Qi, L.; Mao, Yuhao; Leung, Lai-Yung R.

    2014-11-28

    We estimate the snow albedo forcing and direct radiative forcing (DRF) of black carbon (BC) in the Tibetan Plateau using a global chemical transport model in conjunction with a stochastic snow model and a radiative transfer model. Our best estimate of the annual BC snow albedo forcing in the Plateau is 2.9 W m-2 (uncertainty: 1.55.0 W m-226 ). We find that BC-snow internal mixing increases the albedo forcing by 40-60% compared with external mixing and coated BC increases the forcing by 30-50% compared with uncoated BC, whereas Koch snowflakes reduce the forcing by 20-40% relative to spherical snow grains. Our best estimate of the annual BC DRF at the top of the atmosphere is 2.3 W m-2 (uncertainty: 0.74.3 W m-230 ) in the Plateau after scaling the modeled BC absorption optical depth to Aerosol Robotic Network (AERONET) observations. The BC forcings are attributed to emissions from different regions.

  17. Black carbon emissions in the United Kingdom during the past four decades: An empirical analysis

    SciTech Connect

    Novakov, T.; Hansen, J.E.

    2004-04-22

    We use data from a unique 40-year record of 150 urban and rural stations in the ''Black Smoke and SO2 Network'' in Great Britain to infer information about sources of atmospheric black carbon (BC). The data show a rapid decline of ambient atmospheric BC between 1962 and the early 1990s that exceeds the decline in official estimates of BC emissions based only on amount of fuel use and mostly fixed emission factors. This provides empirical confirmation of the existence and large impact of a time-dependent ''technology factor'' that must multiply the rate of fossil fuel use. Current ambient BC amounts in Great Britain comparable to those in western and central Europe, with diesel engines being the principal present source. From comparison of BC and SO2 data we infer that current BC emission inventories understate true emissions in the U.K. by about a factor of two. The results imply that there is the potential for improved technology to achieve large reduction of global ambient BC. There is a need for comparable monitoring of BC in other countries.

  18. Open Boundary Conditions for Dissipative MHD

    SciTech Connect

    Meier, E T

    2011-11-10

    In modeling magnetic confinement, astrophysics, and plasma propulsion, representing the entire physical domain is often difficult or impossible, and artificial, or 'open' boundaries are appropriate. A novel open boundary condition (BC) for dissipative MHD, called Lacuna-based open BC (LOBC), is presented. LOBC, based on the idea of lacuna-based truncation originally presented by V.S. Ryaben'kii and S.V. Tsynkov, provide truncation with low numerical noise and minimal reflections. For hyperbolic systems, characteristic-based BC (CBC) exist for separating the solution into outgoing and incoming parts. In the hyperbolic-parabolic dissipative MHD system, such separation is not possible, and CBC are numerically unstable. LOBC are applied in dissipative MHD test problems including a translating FRC, and coaxial-electrode plasma acceleration. Solution quality is compared to solutions using CBC and zero-normal derivative BC. LOBC are a promising new open BC option for dissipative MHD.

  19. Decadal growth of black carbon emissions in India - article no. L02807

    SciTech Connect

    Sahu, S.K.; Beig, G.; Sharma, C.

    2008-01-15

    A Geographical Information System (GIS) based methodology has been used to construct the black carbon (BC) emission inventory for the Indian geographical region. The distribution of emissions from a broader level to a spatial resolution of 1{sup o} x 1{sup o} grid has been carried out by considering micro level details and activity data of fossil fuels and bio-fuels. Our calculated total BC emissions were 1343.78 Gg and 835.50 Gg for the base years 2001 and 1991 respectively with a decadal growth of around 61%, which is highly significant. The district level analysis shows a diverse spatial distribution with the top 10% emitting districts contributing nearly 50% of total BC emission. Coal contributes more than 50% of total BC emission. All the metropolitan cities show high BC emissions due to high population density giving rise to high vehicular emissions and more demand of energy.

  20. B2_Mod708_forDOE.xlsx

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Contract No. DE-AC06-05RL14655 TABLE B.2 SCHEDULE OF QUANTITIES AND TARGET COST Section B 708 CLIN 1 CLIN 2 CLIN 3 CLIN 4 100 Area 100-B/C Area FR - 100 B/C Area Design 1.03.01.04.01 Fld. Rem.-100 B/C Area Design 1 LS $702,783 $702,783 Confirmatory Sampling Sites 1.03.01.01.03 Fld. Rem.-Conf Sampling Sites-100 B/C 10 EA $838,517 $838,517 Liquid Waste Site Remediation 1.03.01.02.04 Fld. Rem.-Liquid Waste Sites-100-BC-1 0 TONS $322,870 $322,870 Waste Site Remediation 1.03.01.02.05 / 1.03.01.03.05

  1. Sources of black carbon aerosols in South Asia and surrounding regions during the Integrated Campaign for Aerosols, Gases and Radiation Budget (ICARB)

    DOE PAGES [OSTI]

    Kumar, R.; Barth, M. C.; Nair, V. S.; Pfister, G. G.; Suresh Babu, S.; Satheesh, S. K.; Moorthy, K. Krishna; Carmichael, G. R.; Lu, Z.; Streets, D. G.

    2015-05-19

    This study examines differences in the surface black carbon (BC) aerosol loading between the Bay of Bengal (BoB) and the Arabian Sea (AS) and identifies dominant sources of BC in South Asia and surrounding regions during March–May 2006 (Integrated Campaign for Aerosols, Gases and Radiation Budget, ICARB) period. A total of 13 BC tracers are introduced in the Weather Research and Forecasting Model coupled with Chemistry to address these objectives. The model reproduced the temporal and spatial variability of BC distribution observed over the AS and the BoB during the ICARB ship cruise and captured spatial variability at the inlandmore » sites. In general, the model underestimates the observed BC mass concentrations. However, the model–observation discrepancy in this study is smaller compared to previous studies. Model results show that ICARB measurements were fairly well representative of the AS and the BoB during the pre-monsoon season. Elevated BC mass concentrations in the BoB are due to 5 times stronger influence of anthropogenic emissions on the BoB compared to the AS. Biomass burning in Burma also affects the BoB much more strongly than the AS. Results show that anthropogenic and biomass burning emissions, respectively, accounted for 60 and 37% of the average ± standard deviation (representing spatial and temporal variability) BC mass concentration (1341 ± 2353 ng m-3) in South Asia. BC emissions from residential (61%) and industrial (23%) sectors are the major anthropogenic sources, except in the Himalayas where vehicular emissions dominate. We find that regional-scale transport of anthropogenic emissions contributes up to 25% of BC mass concentrations in western and eastern India, suggesting that surface BC mass concentrations cannot be linked directly to the local emissions in different regions of South Asia.« less

  2. Linearity of Climate Response to Increases in Black Carbon Aerosols

    SciTech Connect

    Mahajan, Salil; Evans, Katherine J.; Hack, James J.; Truesdale, John

    2013-04-19

    The impact of absorbing aerosols on global climate are not completely understood. Here, we present results of idealized experiments conducted with the Community Atmosphere Model (CAM4) coupled to a slab ocean model (CAM4-SOM) to simulate the climate response to increases in tropospheric black carbon aerosols (BC) by direct and semi-direct effects. CAM4-SOM was forced with 0, 1x, 2x, 5x and 10x an estimate of the present day concentration of BC while maintaining their estimated present day global spatial and vertical distribution. The top of the atmosphere (TOA) radiative forcing of BC in these experiments is positive (warming) and increases linearly as the BC burden increases. The total semi-direct effect for the 1x experiment is positive but becomes increasingly negative for higher BC concentrations. The global average surface temperature response is found to be a linear function of the TOA radiative forcing. The climate sensitivity to BC from these experiments is estimated to be 0.42 K $ W^{-1} m^{2}$ when the semi-direct effects are accounted for and 0.22 K $ W^{-1} m^{2}$ with only the direct effects considered. Global average precipitation decreases linearly as BC increases, with a precipitation sensitivity to atmospheric absorption of 0.4 $\\%$ $W^{-1}m^{2}$ . The hemispheric asymmetry of BC also causes an increase in southward cross-equatorial heat transport and a resulting northward shift of the inter-tropical convergence zone in the simulations at a rate of 4$^{\\circ}$N $ PW^{-1}$. Global average mid- and high-level clouds decrease, whereas the low-level clouds increase linearly with BC. The increase in marine stratocumulus cloud fraction over the south tropical Atlantic is caused by increased BC-induced diabatic heating of the free troposphere.

  3. Sources of black carbon aerosols in South Asia and surrounding regions during the Integrated Campaign for Aerosols, Gases and Radiation Budget (ICARB)

    SciTech Connect

    Kumar, R.; Barth, M. C.; Nair, V. S.; Pfister, G. G.; Suresh Babu, S.; Satheesh, S. K.; Moorthy, K. Krishna; Carmichael, G. R.; Lu, Z.; Streets, D. G.

    2015-05-19

    This study examines differences in the surface black carbon (BC) aerosol loading between the Bay of Bengal (BoB) and the Arabian Sea (AS) and identifies dominant sources of BC in South Asia and surrounding regions during March–May 2006 (Integrated Campaign for Aerosols, Gases and Radiation Budget, ICARB) period. A total of 13 BC tracers are introduced in the Weather Research and Forecasting Model coupled with Chemistry to address these objectives. The model reproduced the temporal and spatial variability of BC distribution observed over the AS and the BoB during the ICARB ship cruise and captured spatial variability at the inland sites. In general, the model underestimates the observed BC mass concentrations. However, the model–observation discrepancy in this study is smaller compared to previous studies. Model results show that ICARB measurements were fairly well representative of the AS and the BoB during the pre-monsoon season. Elevated BC mass concentrations in the BoB are due to 5 times stronger influence of anthropogenic emissions on the BoB compared to the AS. Biomass burning in Burma also affects the BoB much more strongly than the AS. Results show that anthropogenic and biomass burning emissions, respectively, accounted for 60 and 37% of the average ± standard deviation (representing spatial and temporal variability) BC mass concentration (1341 ± 2353 ng m-3) in South Asia. BC emissions from residential (61%) and industrial (23%) sectors are the major anthropogenic sources, except in the Himalayas where vehicular emissions dominate. We find that regional-scale transport of anthropogenic emissions contributes up to 25% of BC mass concentrations in western and eastern India, suggesting that surface BC mass concentrations cannot be linked directly to the local emissions in different regions of South Asia.

  4. Quantifying sources, transport, deposition and radiative forcing of black carbon over the Himalayas and Tibetan Plateau

    DOE PAGES [OSTI]

    Zhang, R.; Wang, H.; Qian, Y.; Rasch, P. J.; Easter, R. C.; Ma, P. -L.; Singh, B.; Huang, J.; Fu, Q.

    2015-01-07

    Black carbon (BC) particles over the Himalayas and Tibetan Plateau (HTP), both airborne and those deposited on snow, have been shown to affect snowmelt and glacier retreat. Since BC over the HTP may originate from a variety of geographical regions and emission sectors, it is essential to quantify the source–receptor relationships of BC in order to understand the contributions of natural and anthropogenic emissions and provide guidance for potential mitigation actions. In this study, we use the Community Atmosphere Model version 5 (CAM5) with a newly developed source tagging technique, nudged towards the MERRA meteorological reanalysis, to characterize the fatemore » of BC particles emitted from various geographical regions and sectors. Evaluated against observations over the HTP and surrounding regions, the model simulation shows a good agreement in the seasonal variation of the near-surface airborne BC concentrations, providing confidence to use this modeling framework for characterizing BC source–receptor relationships. Our analysis shows that the relative contributions from different geographical regions and source sectors depend on seasons and the locations in the HTP. The largest contribution to annual mean BC burden and surface deposition in the entire HTP region is from biofuel and biomass (BB) emissions in South Asia, followed by fossil fuel (FF) emissions from South Asia, then FF from East Asia. The same roles hold for all the seasonal means except for the summer when East Asia FF becomes more important. For finer receptor regions of interest, South Asia BB and FF have the largest impact on BC in Himalayas and Central Tibetan Plateau, while East Asia FF and BB contribute the most to Northeast Plateau in all seasons and Southeast Plateau in the summer. Central Asia and Middle East FF emissions have relatively more important contributions to BC reaching Northwest Plateau, especially in the summer. Although local emissions only contribute about 10% to

  5. Quantifying sources, transport, deposition, and radiative forcing of black carbon over the Himalayas and Tibetan Plateau

    DOE PAGES [OSTI]

    Zhang, R.; Wang, H.; Qian, Y.; Rasch, P. J.; Easter, R. C.; Ma, P. -L.; Singh, B.; Huang, J.; Fu, Q.

    2015-06-08

    Black carbon (BC) particles over the Himalayas and Tibetan Plateau (HTP), both airborne and those deposited on snow, have been shown to affect snowmelt and glacier retreat. Since BC over the HTP may originate from a variety of geographical regions and emission sectors, it is essential to quantify the source–receptor relationships of BC in order to understand the contributions of natural and anthropogenic emissions and provide guidance for potential mitigation actions. In this study, we use the Community Atmosphere Model version 5 (CAM5) with a newly developed source-tagging technique, nudged towards the MERRA meteorological reanalysis, to characterize the fate ofmore » BC particles emitted from various geographical regions and sectors. Evaluated against observations over the HTP and surrounding regions, the model simulation shows a good agreement in the seasonal variation in the near-surface airborne BC concentrations, providing confidence to use this modeling framework for characterizing BC source–receptor relationships. Our analysis shows that the relative contributions from different geographical regions and source sectors depend on season and location in the HTP. The largest contribution to annual mean BC burden and surface deposition in the entire HTP region is from biofuel and biomass (BB) emissions in South Asia, followed by fossil fuel (FF) emissions from South Asia, then FF from East Asia. The same roles hold for all the seasonal means except for the summer, when East Asia FF becomes more important. For finer receptor regions of interest, South Asia BB and FF have the largest impact on BC in the Himalayas and central Tibetan Plateau, while East Asia FF and BB contribute the most to the northeast plateau in all seasons and southeast plateau in the summer. Central Asia and Middle East FF emissions have relatively more important contributions to BC reaching the northwest plateau, especially in the summer. Although local emissions only contribute about

  6. Evaluation of Black Carbon Estimations in Global Aerosol Models

    SciTech Connect

    Koch, D.; Schulz, M.; Kinne, Stefan; McNaughton, C. S.; Spackman, J. R.; Balkanski, Y.; Bauer, S.; Berntsen, T.; Bond, Tami C.; Boucher, Olivier; Chin, M.; Clarke, A. D.; De Luca, N.; Dentener, F.; Diehl, T.; Dubovik, O.; Easter, Richard C.; Fahey, D. W.; Feichter, J.; Fillmore, D.; Freitag, S.; Ghan, Steven J.; Ginoux, P.; Gong, S.; Horowitz, L.; Iversen, T.; Kirkevag, A.; Klimont, Z.; Kondo, Yutaka; Krol, M.; Liu, Xiaohong; Miller, R.; Montanaro, V.; Moteki, N.; Myhre, G.; Penner, J.; Perlwitz, Ja; Pitari, G.; Reddy, S.; Sahu, L.; Sakamoto, H.; Schuster, G.; Schwarz, J. P.; Seland, O.; Stier, P.; Takegawa, Nobuyuki; Takemura, T.; Textor, C.; van Aardenne, John; Zhao, Y.

    2009-11-27

    We evaluate black carbon (BC) model predictions from the AeroCom model intercomparison project by considering the diversity among year 2000 model simulations and comparing model predictions with available measurements. These model-measurement intercomparisons include BC surface and aircraft concentrations, aerosol absorption optical depth (AAOD) from AERONET and OMI retrievals and BC column estimations based on AERONET. In regions other than Asia, most models are biased high compared to surface concentration measurements. However compared with (column) AAOD or BC burden retreivals, the models are generally biased low. The average ratio of model to retrieved AAOD is less than 0.7 in South American and 0.6 in African biomass burning regions; both of these regions lack surface concentration measurements. In Asia the average model to observed ratio is 0.6 for AAOD and 0.5 for BC surface concentrations. Compared with aircraft measurements over the Americas at latitudes between 0 and 50N, the average model is a factor of 10 larger than observed, and most models exceed the measured BC standard deviation in the mid to upper troposphere. At higher latitudes the average model to aircraft BC is 0.6 and underestimate the observed BC loading in the lower and middle troposphere associated with springtime Arctic haze. Low model bias for AAOD but overestimation of surface and upper atmospheric BC concentrations at lower latitudes suggests that most models are underestimating BC absorption and should improve estimates for refractive index, particle size, and optical effects of BC coating. Retrieval uncertainties and/or differences with model diagnostic treatment may also contribute to the model-measurement disparity. Largest AeroCom model diversity occurred in northern Eurasia and the remote Arctic, regions influenced by anthropogenic sources. Changing emissions, aging, removal, or optical properties within a single model generated a smaller change in model predictions than the

  7. Observed high-altitude warming and snow cover retreat over Tibet and the Himalayas enhanced by black carbon aerosols

    DOE PAGES [OSTI]

    Xu, Y.; Ramanathan, V.; Washington, W. M.

    2015-07-10

    Himalayan mountain glaciers and the snowpack over the Tibetan Plateau provide the headwater of several major rivers in Asia. In-situ observations of snow cover fraction since the 1960s suggest that the snow pack in the region have retreated significantly, accompanied by a surface warming of 22.5 C observed over the peak altitudes (5000 m). Using a high-resolution oceanatmosphere global climate model and an observationally constrained black carbon (BC) aerosol forcing, we attribute the observed altitude dependence of the warming trends as well as the spatial pattern of reductions in snow depths and snow cover fraction to various anthropogenic factors. Atmorethe Tibetan Plateau altitudes, the increase of atmospheric CO2 concentration exerted a warming of 1.7 C, BC 1.3 C where as cooling aerosols cause about 0.7 C cooling, bringing the net simulated warming consistent with the anomalously large observed warming. We therefore conclude that BC together with CO2 has contributed to the snow retreat trends. Especially, BC increase is the major factor in the strong elevation dependence of the observed surface warming. The atmospheric warming by BC as well as its surface darkening of snow are coupled with the positive snow albedo feedbacks to account for the disproportionately large role of BC in high-elevation regions. These findings reveal that BC impact needs to be properly accounted for in future regional climate projections, in particular on high-altitude cryosphere.less

  8. Century-long Record of Black Carbon in an Ice Core from the Eastern Pamirs: Estimated Contributions from Biomass Burning

    SciTech Connect

    Wang, Mo; Xu, B.; Kaspari, Susan D.; Gleixner, Gerd; Schwab, Valerie; Zhao, Huabiao; Wang, Hailong; Yao, Ping

    2015-08-01

    We analyzed refractory black carbon (rBC) in an ice core spanning 1875-2000 AD from Mt. Muztagh Ata, the Eastern Pamirs, using a Single Particle Soot Photometer (SP2). Additionally a pre-existing levoglucosan record from the same ice core was used to differentiate rBC that originated from open fires, energy-related combustion of biomass, and fossil fuel combustion. Mean rBC concentrations increased four-fold since the mid-1970s and reached maximum values at the end of 1980s. The observed decrease of the rBC concentrations during the 1990s was likely driven by the economic recession of former USSR countries in Central Asia. Levoglucosan concentrations showed a similar temporal trend to rBC concentrations, exhibiting a large increase around 1980 AD followed by a decrease in the 1990s that was likely due to a decrease in energy-related biomass combustion. The time evolution of levoglucosan/rBC ratios indicated stronger emissions from open fires during the 1940s-1950s, while the increase in rBC during the 1980s-1990s was caused from an increase in energy-related combustion of biomass and fossil fuels.

  9. Black carbon aerosol-induced Northern Hemisphere tropical expansion

    DOE PAGES [OSTI]

    Kovilakam, Mahesh; Mahajan, Salil

    2015-06-23

    Global climate models (GCMs) underestimate the observed trend in tropical expansion. Recent studies partly attribute it to black carbon (BC) aerosols, which are poorly represented in GCMs. In this paper, we conduct a suite of idealized experiments with the Community Atmosphere Model version 4 coupled to a slab ocean model forced with increasing BC concentrations covering a large swath of the estimated range of current BC radiative forcing while maintaining their spatial distribution. The Northern Hemisphere (NH) tropics expand poleward nearly linearly as BC radiative forcing increases (0.7° W-1 m2), indicating that a realistic representation of BC could reduce GCMmore » biases. We find support for the mechanism where BC-induced midlatitude tropospheric heating shifts the maximum meridional tropospheric temperature gradient poleward resulting in tropical expansion. Finally, we also find that the NH poleward tropical edge is nearly linearly correlated with the location of the Intertropical Convergence Zone, which shifts northward in response to increasing BC.« less

  10. Black carbon aerosol-induced Northern Hemisphere tropical expansion

    SciTech Connect

    Kovilakam, Mahesh; Mahajan, Salil

    2015-06-23

    Global climate models (GCMs) underestimate the observed trend in tropical expansion. Recent studies partly attribute it to black carbon (BC) aerosols, which are poorly represented in GCMs. In this paper, we conduct a suite of idealized experiments with the Community Atmosphere Model version 4 coupled to a slab ocean model forced with increasing BC concentrations covering a large swath of the estimated range of current BC radiative forcing while maintaining their spatial distribution. The Northern Hemisphere (NH) tropics expand poleward nearly linearly as BC radiative forcing increases (0.7° W-1 m2), indicating that a realistic representation of BC could reduce GCM biases. We find support for the mechanism where BC-induced midlatitude tropospheric heating shifts the maximum meridional tropospheric temperature gradient poleward resulting in tropical expansion. Finally, we also find that the NH poleward tropical edge is nearly linearly correlated with the location of the Intertropical Convergence Zone, which shifts northward in response to increasing BC.

  11. Measured Black Carbon Deposition on the Sierra Nevada Snow Pack and Implication for Snow Pack Retreat

    SciTech Connect

    Hadley, O.L.; Corrigan, C.E.; Kirchstetter, T.W.; Cliff, S.S.; Ramanathan, V.

    2010-01-12

    Modeling studies show that the darkening of snow and ice by black carbon deposition is a major factor for the rapid disappearance of arctic sea ice, mountain glaciers and snow packs. This study provides one of the first direct measurements for the efficient removal of black carbon from the atmosphere by snow and its subsequent deposition to the snow packs of California. The early melting of the snow packs in the Sierras is one of the contributing factors to the severe water problems in California. BC concentrations in falling snow were measured at two mountain locations and in rain at a coastal site. All three stations reveal large BC concentrations in precipitation, ranging from 1.7 ng/g to 12.9 ng/g. The BC concentrations in the air after the snow fall were negligible suggesting an extremely efficient removal of BC by snow. The data suggest that below cloud scavenging, rather than ice nuclei, was the dominant source of BC in the snow. A five-year comparison of BC, dust, and total fine aerosol mass concentrations at multiple sites reveals that the measurements made at the sampling sites were representative of large scale deposition in the Sierra Nevada. The relative concentration of iron and calcium in the mountain aerosol indicates that one-quarter to one-third of the BC may have been transported from Asia.

  12. A 700 year sediment record of black carbon and polycyclic aromatic hydrocarbons near the EMEP air monitoring station in Aspvreten, Sweden

    SciTech Connect

    Marie Elmquist; Zdenek Zencak; Oerjan Gustafsson

    2007-10-15

    In view of poor constraints on historical combustion emissions, past environmental loadings of black carbon (BC) and polycyclic aromatic hydrocarbon (PAH) were reconstructed from dated lake sediment cores collected 70 km south of Stockholm, Sweden. Compared to several dramatic variations over the recent 150 years, the preindustrial loadings were steady within {+-}50% through the entire medieval with BC fluxes of 0.071 g m{sup -2} yr{sup -1} and PAH fluxes of 6 g m{sup -2} yr{sup -1}. In the wood-burning dominated century leading up to the industrial revolution around 1850, increasing BC fluxes were leading PAH fluxes. BC fluxes reached their millennial-scale maximum around 1920, whereas PAH fluxes increased exponentially to its record maximum around 1960, 50-fold above preindustrial values. For 1920-1950, BC fluxes consistently decreased as PAH fluxes kept increasing. Coal and coke represented >50% of the Swedish energy market in the 1930s. Combined with sharply decreasing (1,7-)/(1,7{+-}2,6-dimethylphenanthrene), indicative of diminishing wood combustion, and decreasing methylphenanthrenes/phenanthrene, indicative of higher-temperature combustion (coal instead of wood), the sediment archive suggests that the relative BC/PAH emission factors thus are lower for coal than for wood combustion. For the first time, both BC and PAH fluxes decreased after 1960. This trend break is a testament to the positive effects of decreasing reliance on petroleum fuels and a number of legislative actions aimed at curbing emissions and by 1990, the loading of BC was back at preindustrial levels, whereas that of PAH were the lowest since the 1910s. However, for the most recent period (1990-2004) the BC and PAH fluxes are no longer decreasing. 55 refs., 3 figs.

  13. ACMEV-SP2 (Single Particle Soot Photometer) (Dataset) | Data Explorer

    Office of Scientific and Technical Information (OSTI)

    ACMEV-SP2 (Single Particle Soot Photometer) Title: ACMEV-SP2 (Single Particle Soot Photometer) The SP2 provides information on the amounts of rBC (refractory black carbon) and of other, non-refractory substances associated with individual rBC containing particles by simultaneously measuring the scattering and incandescence signals of such particles that are directed through the cavity of a 1064 nm Nd:YAG laser. (refractory Black Carbon) rBC mixing ratio (ng/Kg) and number size distribution time

  14. ARM - Field Campaign - SP2 Deployment at Boston College-Aerodyne led Coated

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Black Carbon Study (BC4) govCampaignsSP2 Deployment at Boston College-Aerodyne led Coated Black Carbon Study (BC4) ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : SP2 Deployment at Boston College-Aerodyne led Coated Black Carbon Study (BC4) 2015.03.25 - 2015.04.30 Lead Scientist : Timothy Onasch For data sets, see below. Abstract The main objective of the Boston College-Aerodyne led laboratory study

  15. Science in St. Louis | Dr. Tristram R. Kidder | Photosynthetic...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Tristram R. Kidder Ancient Lessons for Modern Times: An Environmental History of the Yellow River, China, 5000-2000 BC November 10, 2015 - 7:00pm Mid-County Branch, St. Louis ...

  16. CX-004719: Categorical Exclusion Determination

    Energy.gov [DOE]

    Upgrade Communication/Control Systems to BC Brine Disposal Well (Government Furnished Equipment and Install)CX(s) Applied: B1.7Date: 11/23/2010Location(s): LouisianaOffice(s): Strategic Petroleum Reserve Field Office

  17. CX-008368: Categorical Exclusion Determination

    Energy.gov [DOE]

    Renovate 773-A B&C Wing Bathrooms CX(s) Applied: B1.3 Date: 03/28/2012 Location(s): South Carolina Offices(s): Savannah River Operations Office

  18. TO: A. B. GrenFnpr

    Office of Legacy Management (LM)

    Straightening g the National meaning of :bf 32. 1s transmissmr. in any manner co BC rohlbiced by law. -- - 9 n ggc 9 .I&% G:,-. -hi 3 ' ic .:;..Oll ' I. ,,,+lngists of -+ a, ...

  19. Slide 1

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... River Corridor (210 sq. mi.) * Complete: excavation of a total of 3 of 5 100-H burial grounds (M-016-51-T02); 22 interim remedial actions at the 100 BC Area (M-16-94); ...

  20. done

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    "%&'()*+,*+-(%*'B"%&'(C%2,1&-2&D(*26%((E&F*11*:%'GA*&'(2(*(E& ... (E& M&K +*1& (E-( %'(&G+-(&D A*6'%A-(%*'2 :%11 ,1-K %' &'-1%'G 6(%1%(%&2 (* ...

  1. Bull Outdoor Products: Order (2015-CE-14014)

    Energy.gov [DOE]

    DOE ordered Bull Outdoor Products, Inc. to pay a $8,000 civil penalty after finding Bull had failed to certify that refrigerator basic model BC-130 complies with the applicable energy conservation standards.

  2. Bull Outdoor Products: Proposed Penalty (2015-CE-14014)

    Energy.gov [DOE]

    DOE alleged in a Notice of Proposed Civil Penalty that Bull Outdoor Products, Inc. failed to certify refrigerator basic model BC-130 as compliant with the applicable energy conservation standards.

  3. CX-002883: Categorical Exclusion Determination

    Office of Energy Efficiency and Renewable Energy (EERE)

    Procure and Install Analytical Chemistry Instrumentation, 773-A (B&C Wings)CX(s) Applied: B3.1Date: 06/02/2010Location(s): Aiken, South CarolinaOffice(s): Environmental Management, Savannah River Operations Office

  4. Paul Loach | Photosynthetic Antenna Research Center

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    he is working to determine how LH1, the reaction center (RC) and the bc1 complex interact in the intact membrane. Professor of Biochemistry, Molecular Biology and Cell Biology Bio...

  5. Dr. Tristram Kidder | Photosynthetic Antenna Research Center

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Tristram Kidder Ancient Lessons for Modern Times: An Environmental History of the Yellow River, China, 5000-2000 BC Original Event Info: November 10, 2015 - 7:00pm Mid-County ...

  6. APS Beamline 6-ID-B,C

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    B,C Home Recent Publications Beamline Info Optics Instrumentation Software User Info Beamline 6-ID-B,C Beamline 6-ID-B,C is operated by the Magnetic Materials Group in the X-ray...

  7. Environmental Compliance Performance Scorecard ¬タモ Third...

    Office of Environmental Management (EM)

    ... MILESTONE FIELD ID MILESTONE NAME MILESTONE DESCRIPTION VARIANCE NARRATIVE FORECAST DATE ACTUAL DATE ARRA Project: N ARRA Project: N ID-0030B.C1-027 OU 3-14 Draft Phase II 90% ...

  8. Community Response to Concentrating Solar Power in the San Luis...

    OpenEI (Open Energy Information) [EERE & EIA]

    Laboratory, University of Colorado Partner B.C. Farhar, L.M. Hunter, T.M. Kirkland, and K.J. Tierney Focus Area Solar Phase Bring the Right People Together, Evaluate Options, Get...

  9. 2011-2012 SECTION II: HEAVY ION REACTIONS

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    May, P. Marini, D.V. Shetty, W.B. Smith, S.N. Soisson, G.A. Souliotis, B.C. Stein, R. Tripathi, S. Wuenschel, and S.J. Yennello Correlation functions in constrained molecular...

  10. Thermophysical properties of sodium nitrate and sodium chloride...

    Office of Scientific and Technical Information (OSTI)

    ... Authors: Xu, Tianfu ; Pruess, Karsten Publication Date: 2001-10-01 OSTI Identifier: 790019 Report Number(s): LBNL--48913 R&D Project: 80BC01; TRN: US0200332 DOE Contract Number: ...

  11. Modelled Black Carbon Radiative Forcing and Atmospheric Lifetime...

    Office of Scientific and Technical Information (OSTI)

    Adjusting model results to measurements in remote regions, and at high altitudes, leads to a 25% reduction in the multi-model median direct BC forcing from fossil fuel and biofuel ...

  12. CX-014464: Categorical Exclusion Determination

    Energy.gov [DOE]

    Replacement of Bayou Choctaw Deep Well Anode Ground Bed Sites (BC-OM-1472) CX(s) Applied: B1.3Date: 12/08/2015 Location(s): Multiple LocationsOffices(s): Strategic Petroleum Reserve Field Office

  13. untitled

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    a plastic scintillator (Bicron BC-408), 127 mm (5 in.) in diameter and 127 mm (5 in.) in length, coupled with a 130 mm diameter photo- multiplier tube, both shielded from hard x...

  14. D0208002Rev1print.pdf

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Fact Sheet Public Comment U.S. Department of Energy - Washington State Department of Ecology - U.S. Environmental Pr otection Agency 300 Are a 10 0- B,C 1 00- KW & KE 1 00- N 1 00-...

  15. thesis.dvi

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... 2 layers of 1 mm thick -metal. 4 De ection of the ... The cell is lled with the liquid organic uid BC;501 12 . The ... are mounted separately on linear bearings riding on rails. ...

  16. Team Ontario 2009 Solar Decathlon House

    Office of Energy Efficiency and Renewable Energy (EERE)

    This photograph features Team Ontario/BC's solar-powered house that glows at night during the Lighting Design contest at the U.S. Department of Energy Solar Decathlon on the National Mall. Team...

  17. 10-04-2010 CA-B-10-0154

    National Nuclear Security Administration (NNSA)

    4 Sandia National LaboratoriesCalifornia (SNLCA) will develop a novel fieldable laser-induced incandescence sensor to measure black carbon (BC) and brown carbon (BrC) organic ...

  18. TO: FILE MEMORANDUM FR0t-k

    Office of Legacy Management (LM)

    ... "Notification of Hazardous Haste Site" forms ,for our.Elmore,,Oh,io and'luckey, Ohio plants. Very truly yours, bc: ,G. S. Blome M. 8. Powers - I .-..I .v......, - ' ..' ...

  19. MEMORANDUrl TO: FILE

    Office of Legacy Management (LM)

    rr0b.c EQUIPMENT ORE OR RAW MATL FINAL PRODUCT WASTE & RESIDUE Control 0 Health Physics Protection 0 AECMED managed operations 0 Little or None U AECMED responsible for c ...

  20. http://pubs.usgs.gov/wri/wri964109/report.htm

    National Nuclear Security Administration (NNSA)

    ... events, and from 200 to more than 350 ft for larger events (Hudson and Smith, 1981). ... sheets, scale 1:4,800. Hudson, B.C., and Smith, J.R., 1981, Cavity radius uncertainties: ...

  1. The importance of China's household sector for black carbon emissions - article no. L12708

    SciTech Connect

    Streets, D.G.; Aunan, K.

    2005-06-30

    The combustion of coal and biofuels in Chinese households is a large source of black carbon (BC), representing about 10-15% of total global emissions during the past two decades, depending on the year. How the Chinese household sector develops during the next 50 years will have an important bearing on future aerosol concentrations, because the range of possible outcomes (about 550 Gg yr{sup -1}) is greater than total BC emissions in either the United States or Europe (each about 400-500 Gg yr{sup -1}). In some Intergovernmental Panel on Climate Change scenarios biofuels persist in rural China for at least the next 50 years, whereas in other scenarios a transition to cleaner fuels and technologies effectively mitigates BC emissions. This paper discusses measures and policies that would help this transition and also raises the possibility of including BC emission reductions as a post-Kyoto option for China and other developing countries.

  2. Word Pro - S3

    Energy Information Administration (EIA) (indexed site)

    Stock Change j Adjust- ments c,k Petroleum Products Supplied Crude Oil b,c NGPL e Total c Im- ports h Ex- ports Net Imports i 48 States d Alaska Total 1950 Average ...

  3. Day4Energy Inc | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Day4Energy Inc Place: Burnaby, British Columbia, Canada Zip: BC V5G 4X4 Product: Manufactures modules using crystalline silicon PV cells and a patented back-contact method, the...

  4. Aethalometer Instrument Handbook

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... on this filter using the same light source and detector, the net intensity will be: ( ) exp A( ) 4 where the absorbance is ( ) 5 and BC is the amount which has ...

  5. The Secretary of Energy

    Office of Legacy Management (LM)

    ' The Secretary of Energy cj L. Washington. bC 20585 1 .) :-. . . The .Honora.leZ ... sent to the President for signature the Energy and Water Development Appropriations Act, ...

  6. The Secretary of Energy

    Office of Legacy Management (LM)

    The Secretary of Energy Washington. bC-20585 -.. October 10, 1997 . - The Honorable Wlliam ... Secremy: ' The Congress recently sent to the President for signature the Energy and Water ...

  7. James L. Liveman, Acting AssLBtaOt

    Office of Legacy Management (LM)

    SD:ZTJ cc: B. ' veen, UL w. Smith, Am ' A. Baker, Utivc-oity of Nevada W. E. Not:, ECT, EQ Robert H. Bauc xanager . ' bc: OX , OFFICE SfiEfm,r SAFE -, -*-r SURNAME ias ce --&%y ...

  8. Russian anthropogenic black carbon: Emission reconstruction and Arctic black carbon simulation

    DOE PAGES [OSTI]

    Huang, Kan; Fu, Joshua S.; Prikhodko, Vitaly Y.; Storey, John M.; Romanov, Alexander; Hodson, Elke L.; Cresko, Joe; Morozova, Irina; Ignatieva, Yulia; Cabaniss, John

    2015-10-02

    Development of reliable source emission inventories is needed to advance the understanding of the origin of Arctic haze using chemical transport modeling. This paper develops a regional anthropogenic black carbon (BC) emission inventory for the Russian Federation, the largest country by land area in the Arctic Council. Activity data from combination of local Russia information and international resources, emission factors based on either Russian documents or adjusted values for local conditions, and other emission source data are used to approximate the BC emissions. Emissions are gridded at a resolution of 0.1° × 0.1° and developed into a monthly temporal profile.more » Total anthropogenic BC emission of Russia in 2010 is estimated to be around 224 Gg. Gas flaring, a commonly ignored black carbon source, contributes a significant fraction of 36.2% to Russia's total anthropogenic BC emissions. Other sectors, i.e., residential, transportation, industry, and power plants, contribute 25.0%, 20.3%, 13.1%, and 5.4%, respectively. Three major BC hot spot regions are identified: the European part of Russia, the southern central part of Russia where human population densities are relatively high, and the Urals Federal District where Russia's major oil and gas fields are located but with sparse human population. BC simulations are conducted using the hemispheric version of Community Multi-scale Air Quality Model with emission inputs from a global emission database EDGAR (Emissions Database for Global Atmospheric Research)-HTAPv2 (Hemispheric Transport of Air Pollution) and EDGAR-HTAPv2 with its Russian part replaced by the newly developed Russian BC emissions, respectively. The simulation using the new Russian BC emission inventory could improve 30–65% of absorption aerosol optical depth measured at the AERONET sites in Russia throughout the whole year as compared to that using the default HTAPv2 emissions. At the four ground monitoring sites (Zeppelin, Barrow, Alert

  9. Russian anthropogenic black carbon: Emission reconstruction and Arctic black carbon simulation

    SciTech Connect

    Huang, Kan; Fu, Joshua S.; Prikhodko, Vitaly Y.; Storey, John M.; Romanov, Alexander; Hodson, Elke L.; Cresko, Joe; Ignatieva, Yulia; Cabaniss, John

    2015-10-02

    Development of reliable source emission inventories is needed to advance the understanding of the origin of Arctic haze using chemical transport modeling. This paper develops a regional anthropogenic black carbon (BC) emission inventory for the Russian Federation, the largest country by land area in the Arctic Council. Activity data from combination of local Russia information and international resources, emission factors based on either Russian documents or adjusted values for local conditions, and other emission source data are used to approximate the BC emissions. Emissions are gridded at a resolution of 0.1° × 0.1° and developed into a monthly temporal profile. Total anthropogenic BC emission of Russia in 2010 is estimated to be around 224 Gg. Gas flaring, a commonly ignored black carbon source, contributes a significant fraction of 36.2% to Russia's total anthropogenic BC emissions. Other sectors, i.e., residential, transportation, industry, and power plants, contribute 25.0%, 20.3%, 13.1%, and 5.4%, respectively. Three major BC hot spot regions are identified: the European part of Russia, the southern central part of Russia where human population densities are relatively high, and the Urals Federal District where Russia's major oil and gas fields are located but with sparse human population. BC simulations are conducted using the hemispheric version of Community Multi-scale Air Quality Model with emission inputs from a global emission database EDGAR (Emissions Database for Global Atmospheric Research)-HTAPv2 (Hemispheric Transport of Air Pollution) and EDGAR-HTAPv2 with its Russian part replaced by the newly developed Russian BC emissions, respectively. The simulation using the new Russian BC emission inventory could improve 30–65% of absorption aerosol optical depth measured at the AERONET sites in Russia throughout the whole year as compared to that using the default HTAPv2 emissions. At the four ground monitoring sites (Zeppelin, Barrow, Alert, and

  10. Potential of Diazorphic, Endophytic Bacteria Associated with Sugarcane for Energycane Production

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Diazorphic, Endophytic Bacteria Associated with Sugarcane for Energycane Production Michael P. Grisham, Anna L. Hale, and Paul M. White USDA - Agricultural Research Service Sugarcane Research Unit Houma, LA, U.S.A. Origin and Spread of Sugarcane 6000 BC Domestication of sugarcane in New Guinea 1000 BC Traders began spreading sugarcane westward 1493 Brought by Columbus to Hispaniola from Canary Islands 1500s Spanish and Portuguese explores bring sugarcane to Americas "Creole," a noble

  11. 2013 DOE Bioenergy Technologies Office (BETO) Project Peer Review

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    BC Process Improvements Validation Task (2.3.1.7) Date: May 21, 2013 Technology Area Review: Biochemical Conversion Principal Investigators: James D. (Jim) McMillan and Nancy Dowe Organization: NREL This presentation does not contain any proprietary, confidential, or otherwise restricted information NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. BC Process Improvements

  12. Microsoft Word - beam characterization and verification.doc

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Characterization and Verification Detector Components and Arrangement The beam uniformity and flux are determined using an array of five particle detectors. Each detector consists of Bicron BC-400 scintillator, a Bicron BC-634A optical coupling pad, a Hamamatsu R1635 photomultiplier tube, and a Hamamatsu E1761-04 tube base. Four of the detectors are fixed in position as show in Figure 1 and set up to measure beam particle counting rates continuously at four characteristic points, each 1.64

  13. ARM - Publications: Science Team Meeting Documents

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Finding a Method to Measure the Black Carbon State of Mixture Fiebig, M. and Ogren, J.A., National Oceanic and Administrative Administration - Climate Monitoring and Diagnostics Laboratory Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Black carbon (BC), the predominant source of solar absorption in atmospheric aerosol, can be present therein as pure BC particles distinct from purely scattering particles (external mixture), homogeneously mixed with purely scattering

  14. A.J. Stewart Smith to step down as Princeton University vice president for

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    PPPL in 2016 | Princeton Plasma Physics Lab A.J. Stewart Smith to step down as Princeton University vice president for PPPL in 2016 By John Greenwald July 24, 2015 Tweet Widget Google Plus One Share on Facebook A.J. Stewart Smith (Photo by Elle Starkman/Office of Communications) A.J. Stewart Smith Gallery: Smith, second from left, scoring a goal for the Vancouver Carlings during a 1961 Canadian National Lacrosse Championship game. (Photo by Photo courtesy of A.J. Stewart Smith) Smith, second

  15. A.J. Stewart Smith to step down as Princeton University vice president for

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    PPPL in 2016 | Princeton Plasma Physics Lab A.J. Stewart Smith to step down as Princeton University vice president for PPPL in 2016 By John Greenwald July 24, 2015 Tweet Widget Google Plus One Share on Facebook A.J. Stewart Smith (Photo by Elle Starkman/Office of Communications) A.J. Stewart Smith Gallery: Smith, second from left, scoring a goal for the Vancouver Carlings during a 1961 Canadian National Lacrosse Championship game. (Photo by Photo courtesy of A.J. Stewart Smith) Smith, second

  16. Bonneville Power Ampere Annex Z-995 Building

    Building Catalog

    Vancouver, WA The Bonneville Power Administration (BPA), a federal agency headquartered in Portland, Oregon, provides about half of the electricity used in the Pacific Northwest and operates more than three-fourths of the region's high-voltage transmission. Because BPA markets power at cost from 31 federal dams, its rates are among the least expensive electricity in the country. The Ampere Annex project is a renovation of an exisiting 60-year-old standard warehouse building located within the Ross Complex. 09/22/2014 - 10:45

  17. Elastic properties, sp³ fraction, and Raman scattering in low and high pressure synthesized diamond-like boron rich carbides

    SciTech Connect

    Zinin, Pavel V.; Burgess, Katherine; Jia, Ruth; Sharma, Shiv; Ming, Li-Chung; Liu, Yongsheng; Ciston, Jim; Hong, Shiming

    2014-10-07

    Dense BC{sub x} phases with high boron concentration are predicted to be metastable, superhard, and conductors or superconductors depending on boron concentration. However, up to this point, diamond-like boron rich carbides BC{sub x} (dl-BC{sub x}) phases have been thought obtainable only through high pressure and high temperature treatment, necessitating small specimen volume. Here, we use electron energy loss spectroscopy combined with transmission electron microscopy, Raman spectroscopy, surface Brillouin scattering, laser ultrasonics (LU) technique, and analysis of elastic properties to demonstrate that low pressure synthesis (chemical vapor deposition) of BC{sub x} phases may also lead to the creation of diamond-like boron rich carbides. The elastic properties of the dl-BC{sub x} phases depend on the carbon sp²versus sp³ content, which decreases with increasing boron concentration, while the boron bonds determine the shape of the Raman spectra of the dl-BC{sub x} after high pressure-high temperature treatment. Using the estimation of the density value based on the sp³ fraction, the shear modulus μ of dl-BC₄, containing 10% carbon atoms with sp³ bonds, and dl-B₃C₂, containing 38% carbon atoms with sp³ bonds, were found to be μ = 19.3 GPa and μ = 170 GPa, respectively. The presented experimental data also imply that boron atoms lead to a creation of sp³ bonds during the deposition processes.

  18. Supporting technology for enhanced oil recovery: EOR thermal processes. Seventh Amendment and Extension to Annex 4, Enhanced oil recovery thermal processes

    SciTech Connect

    Reid, T B; Colonomos, P

    1993-02-01

    This report contains the results of efforts under the six tasks of the Seventh Amendment and Extension of Annex IV, Enhanced Oil Recovery Thermal Processes of the Venezuela/USA Agreement. The report is presented in sections (for each of the 6 tasks) and each section contains one or more reports prepared by various individuals or groups describing the results of efforts under each of the tasks. A statement of each task, taken from the agreement, is presented on the first page of each section. The tasks are numbered 50 through 55. The first, second, third, fourth, fifth, sixth and seventh reports on Annex IV, Venezuela MEM/USA-DOE Fossil Energy Report IV-1, IV-2, IV-3, IV-4, IV-5 and IV-6 (DOE/BETC/SP-83/15, DOE/BC-84/6/SP, DOE/BC-86/2/SP, DOE/BC-87/2/SP, DOE/BC-89/l/SP, DOE/BC-90/l/SP, and DOE/BC-92/l/SP) contain the results for the first 49 tasks. Those reports are dated April 1983, August 1984, March 1986, July 1987, November 1988, December 1989, and October 1991, respectively. Each task report has been processed separately for inclusion in the Energy Science and Technology Database.

  19. An AeroCom Assessment of Black Carbon in Arctic Snow and Sea Ice

    SciTech Connect

    Jiao, C.; Flanner, M. G.; Balkanski, Y.; Bauer, S.; Bellouin, N.; Berntsen, T.; Bian, Huisheng; Carslaw, K. S.; Chin, Mian; De Luca, N.; Diehl, Thomas; Ghan, Steven J.; Iversen, T.; Kirkevag, A.; Koch, Dorothy; Liu, Xiaohong; Mann, G. W.; Penner, Joyce E.; Pitari, G.; Schulz, M.; Seland, O.; Skeie, R. B.; Steenrod, Stephen D.; Stier, P.; Takemura, T.; Tsigaridis, Kostas; van Noije, T.; Yun, Yuxing; Zhang, Kai

    2014-03-07

    Though many global aerosols models prognose surface deposition, only a few models have been used to directly simulate the radiative effect from black carbon (BC) deposition to snow and sea-ice. Here, we apply aerosol deposition fields from 25 models contributing to two phases of the Aerosol Comparisons between Observations and Models (AeroCom) project to simulate and evaluate within snow BC concentrations and radiative effect in the Arctic. We accomplish this by driving the offline land and sea-ice components of the Community Earth System Model with different deposition fields and meteorological conditions from 2004-2009, during which an extensive field campaign of BC measurements in Arctic snow occurred. We find that models generally underestimate BC concentrations in snow in northern Russia and Norway, while overestimating BC amounts elsewhere in the Arctic. Although simulated BC distributions in snow are poorly correlated with measurements, mean values are reasonable. The multi-model mean (range) bias in BC concentrations, sampled over the same grid cells, snow depths, and months of measurements, are -4.4 (-13.2 to +10.7) ng g−1 for an earlier Phase of AeroCom models (Phase I), and +4.1 (-13.0 to +21.4) ng g−1 for a more recent Phase of AeroCom models (Phase II), compared to the observational mean of 19.2 ng g−1. Factors determining model BC concentrations in Arctic snow include Arctic BC emissions, transport of extra-Arctic aerosols, precipitation, deposition efficiency of aerosols within the Arctic, and meltwater removal of particles in snow. Sensitivity studies show that the model–measurement evaluation is only weakly affected by meltwater scavenging efficiency because most measurements were conducted in non-melting snow. The Arctic (60-90◦N) atmospheric residence time for BC in Phase II models ranges from 3.7 to 23.2 days, implying large inter-model variation in local BC deposition efficiency. Combined with the fact that most Arctic BC deposition

  20. Observed high-altitude warming and snow cover retreat over Tibet and the Himalayas enhanced by black carbon aerosols

    DOE PAGES [OSTI]

    Xu, Y.; Ramanathan, V.; Washington, W. M.

    2016-02-05

    Himalayan mountain glaciers and the snowpack over the Tibetan Plateau provide the headwater of several major rivers in Asia. In situ observations of snow cover extent since the 1960s suggest that the snowpack in the region have retreated significantly, accompanied by a surface warming of 2–2.5°C observed over the peak altitudes (5000 m). Using a high-resolution ocean–atmosphere global climate model and an observationally constrained black carbon (BC) aerosol forcing, we attribute the observed altitude dependence of the warming trends as well as the spatial pattern of reductions in snow depths and snow cover extent to various anthropogenic factors. At themore » Tibetan Plateau altitudes, the increase in atmospheric CO2 concentration exerted a warming of 1.7°C, BC 1.3°C where as cooling aerosols cause about 0.7°C cooling, bringing the net simulated warming consistent with the anomalously large observed warming. We therefore conclude that BC together with CO2 has contributed to the snow retreat trends. In particular, BC increase is the major factor in the strong elevation dependence of the observed surface warming. The atmospheric warming by BC as well as its surface darkening of snow is coupled with the positive snow albedo feedbacks to account for the disproportionately large role of BC in high-elevation regions. Here, these findings reveal that BC impact needs to be properly accounted for in future regional climate projections, in particular on high-altitude cryosphere.« less

  1. Black carbon emissions from Russian diesel sources. Case study of Murmansk

    SciTech Connect

    Evans, M.; Kholod, N.; Malyshev, V.; Tretyakova, S.; Gusev, E.; Yu, S.; Barinov, A.

    2015-07-27

    Black carbon (BC) is a potent pollutant because of its effects on climate change, ecosystems and human health. Black carbon has a particularly pronounced impact as a climate forcer in the Arctic because of its effect on snow albedo and cloud formation. We have estimated BC emissions from diesel sources in the Murmansk Region and Murmansk City, the largest city in the world above the Arctic Circle. In this study we developed a detailed inventory of diesel sources including on-road vehicles, off-road transport (mining, locomotives, construction and agriculture), ships and diesel generators. For on-road transport, we conducted several surveys to understand the vehicle fleet and driving patterns, and, for all sources, we also relied on publicly available local data sets and analysis. We calculated that BC emissions in the Murmansk Region were 0.40 Gg in 2012. The mining industry is the largest source of BC emissions in the region, emitting 69 % of all BC emissions because of its large diesel consumption and absence of emissions controls. On-road vehicles are the second largest source, emitting about 13 % of emissions. Old heavy duty trucks are the major source of emissions. Emission controls on new vehicles limit total emissions from on-road transportation. Vehicle traffic and fleet surveys show that many of the older cars on the registry are lightly or never used. We also estimated that total BC emissions from diesel sources in Russia were 50.8 Gg in 2010, and on-road transport contributed 49 % of diesel BC emissions. Agricultural machinery is also a significant source Russia-wide, in part because of the lack of controls on off-road vehicles.

  2. Observed high-altitude warming and snow cover retreat over Tibet and the Himalayas enhanced by black carbon aerosols

    DOE PAGES [OSTI]

    Xu, Y.; Ramanathan, V.; Washington, W. M.

    2016-02-05

    Himalayan mountain glaciers and the snowpack over the Tibetan Plateau provide the headwater of several major rivers in Asia. In situ observations of snow cover extent since the 1960s suggest that the snowpack in the region have retreated significantly, accompanied by a surface warming of 2–2.5 °C observed over the peak altitudes (5000 m). Using a high-resolution ocean–atmosphere global climate model and an observationally constrained black carbon (BC) aerosol forcing, we attribute the observed altitude dependence of the warming trends as well as the spatial pattern of reductions in snow depths and snow cover extent to various anthropogenic factors. At the Tibetanmore » Plateau altitudes, the increase in atmospheric CO2 concentration exerted a warming of 1.7 °C, BC 1.3 °C where as cooling aerosols cause about 0.7 °C cooling, bringing the net simulated warming consistent with the anomalously large observed warming. We therefore conclude that BC together with CO2 has contributed to the snow retreat trends. In particular, BC increase is the major factor in the strong elevation dependence of the observed surface warming. The atmospheric warming by BC as well as its surface darkening of snow is coupled with the positive snow albedo feedbacks to account for the disproportionately large role of BC in high-elevation regions. These findings reveal that BC impact needs to be properly accounted for in future regional climate projections, in particular on high-altitude cryosphere.« less

  3. Black carbon emissions from Russian diesel sources. Case study of Murmansk

    DOE PAGES [OSTI]

    Evans, M.; Kholod, N.; Malyshev, V.; Tretyakova, S.; Gusev, E.; Yu, S.; Barinov, A.

    2015-07-27

    Black carbon (BC) is a potent pollutant because of its effects on climate change, ecosystems and human health. Black carbon has a particularly pronounced impact as a climate forcer in the Arctic because of its effect on snow albedo and cloud formation. We have estimated BC emissions from diesel sources in the Murmansk Region and Murmansk City, the largest city in the world above the Arctic Circle. In this study we developed a detailed inventory of diesel sources including on-road vehicles, off-road transport (mining, locomotives, construction and agriculture), ships and diesel generators. For on-road transport, we conducted several surveys tomore » understand the vehicle fleet and driving patterns, and, for all sources, we also relied on publicly available local data sets and analysis. We calculated that BC emissions in the Murmansk Region were 0.40 Gg in 2012. The mining industry is the largest source of BC emissions in the region, emitting 69 % of all BC emissions because of its large diesel consumption and absence of emissions controls. On-road vehicles are the second largest source, emitting about 13 % of emissions. Old heavy duty trucks are the major source of emissions. Emission controls on new vehicles limit total emissions from on-road transportation. Vehicle traffic and fleet surveys show that many of the older cars on the registry are lightly or never used. We also estimated that total BC emissions from diesel sources in Russia were 50.8 Gg in 2010, and on-road transport contributed 49 % of diesel BC emissions. Agricultural machinery is also a significant source Russia-wide, in part because of the lack of controls on off-road vehicles.« less

  4. Measurement of the $$B_c^{\\pm}$$ production cross section in $$p\\bar{p}$$ collisions at $$\\sqrt{s}=1.96$$ TeV

    DOE PAGES [OSTI]

    Aaltonen, Timo Antero

    2016-03-01

    Here, we describe a measurement of the ratio of the cross sections times branching fractions of the Bc+ meson in the decay mode Bc+ → J/ψμ+ν to the B+ meson in the decay mode B+ → J/ψK+ in proton-antiproton collisions at center-of-mass energy √s = 1.96 TeV. The measurement is based on the complete CDF Run II data set, which comes from an integrated luminosity of 8.7 fb-1. The ratio of the production cross sections times branching fractions for Bc+ and B+ mesons with momentum transverse to the beam greater than 6 GeV/c and rapidity magnitude smaller than 0.6 ismore » 0.211 ± 0.012(stat)-0.020+0.021(syst). Using the known B+ → J/ψK+ branching fraction, the known B+ production cross section, and a selection of the predicted Bc+ → J/ψμ+ν branching fractions, the range for the total Bc+ production cross section is estimated.« less

  5. Upper critical field and Kondo effects in Fe(Te0.9Se0.1) thin films by pulsed field measurements

    DOE PAGES [OSTI]

    Salamon, Myron B.; Cornell, Nicholas; Jaime, Marcelo; Balakirev, Fedor F.; Zakhidov, Anvar; Huang, Jijie; Wang, Haiyan

    2016-02-10

    The transition temperatures of epitaxial films of Fe(Te0:9Se0:1) are remarkably insensitive to applied magnetic field, leading to predictions of upper critical fields Bc2(T = 0) in excess of 100 T. Using pulsed magnetic fields, we find Bc2(0) to be on the order of 45 T, similar to values in bulk material and still in excess of the paramagnetic limit. The same films show strong magnetoresistance in fields above Bc2(T), consistent with the observed Kondo minimum seen above Tc. Fits to the temperature dependence in the context of the WHH model, using the experimental value of the Maki parameter, require anmore » effective spin-orbit relaxation parameter of order unity. Lastly, we suggest that Kondo localization plays a similar role to spin-orbit pair breaking in making WHH fits to the data.« less

  6. Three dimensional simulation for bayou choctaw strategic petroleum reserve (SPR).

    SciTech Connect

    Ehgartner, Brian L. (Sandia National Laboratories, Albuquerque, NM); Park, Byoung Yoon; Lee, Moo Yul

    2006-12-01

    Three dimensional finite element analyses were performed to evaluate the structural integrity of the caverns located at the Bayou Choctaw (BC) site which is considered a candidate for expansion. Fifteen active and nine abandoned caverns exist at BC, with a total cavern volume of some 164 MMB. A 3D model allowing control of each cavern individually was constructed because the location and depth of caverns and the date of excavation are irregular. The total cavern volume has practical interest, as this void space affects total creep closure in the BC salt mass. Operations including both cavern workover, where wellhead pressures are temporarily reduced to atmospheric, and cavern enlargement due to leaching during oil drawdowns that use water to displace the oil from the caverns, were modeled to account for as many as the five future oil drawdowns in the six SPR caverns. The impacts on cavern stability, underground creep closure, surface subsidence, infrastructure, and well integrity were quantified.

  7. What is the importance of climate model bias when projecting the impacts of climate change on land surface processes?

    SciTech Connect

    Liu, M. L.; Rajagopalan, K.; Chung, S. H.; Jiang, X.; Harrison, J. H.; Nergui, T.; Guenther, Alex B.; Miller, C.; Reyes, J.; Tague, C. L.; Choate, J. S.; Salathe, E.; Stockle, Claudio O.; Adam, J. C.

    2014-05-16

    Regional climate change impact (CCI) studies have widely involved downscaling and bias-correcting (BC) Global Climate Model (GCM)-projected climate for driving land surface models. However, BC may cause uncertainties in projecting hydrologic and biogeochemical responses to future climate due to the impaired spatiotemporal covariance of climate variables and a breakdown of physical conservation principles. Here we quantify the impact of BC on simulated climate-driven changes in water variables(evapotranspiration, ET; runoff; snow water equivalent, SWE; and water demand for irrigation), crop yield, biogenic volatile organic compounds (BVOC), nitric oxide (NO) emissions, and dissolved inorganic nitrogen (DIN) export over the Pacific Northwest (PNW) Region. We also quantify the impacts on net primary production (NPP) over a small watershed in the region (HJ Andrews). Simulation results from the coupled ECHAM5/MPI-OM model with A1B emission scenario were firstly dynamically downscaled to 12 km resolutions with WRF model. Then a quantile mapping based statistical downscaling model was used to downscale them into 1/16th degree resolution daily climate data over historical and future periods. Two series climate data were generated according to the option of bias-correction (i.e. with bias-correction (BC) and without bias-correction, NBC). Impact models were then applied to estimate hydrologic and biogeochemical responses to both BC and NBC meteorological datasets. These im20 pact models include a macro-scale hydrologic model (VIC), a coupled cropping system model (VIC-CropSyst), an ecohydrologic model (RHESSys), a biogenic emissions model (MEGAN), and a nutrient export model (Global-NEWS). Results demonstrate that the BC and NBC climate data provide consistent estimates of the climate-driven changes in water fluxes (ET, runoff, and water demand), VOCs (isoprene and monoterpenes) and NO emissions, mean crop yield, and river DIN export over the PNW domain. However

  8. {sup 25}Na and {sup 25}Mg fragmentation on {sup 12}C at 9.23 MeV per nucleon at TRIUMF

    SciTech Connect

    St-Onge, Patrick; Boisjoli, Mark; Fregeau, Marc-Olivier; Gauthier, Jerome; Wallace, Barton; Roy, Rene

    2012-10-20

    HERACLES is a multidetector that is used to study heavy-ion collisions, with ion beams with an energy range between 8 to 15 MeV per nucleon. It has 78 detectors axially distributed around the beam axis in 6 rings allowing detection of multiple charged fragments from nuclear reactions. HERACLES has 4 different types of detectors, BC408/BaF{sub 2} phoswich, Si/CsI(Tl) telescope, BC408/BC444 phoswich and CsI(Tl) detectors. The multidetector has been run with a radioactive {sup 25}Na beam and a stable {sup 25}Mg beam at 9.23 MeV per nucleon on a carbon target.

  9. Vitrification demonstration with surrogate Oak Ridge Reservation K-25 B and C pond sludge

    SciTech Connect

    Cicero, C.A.; Overcamp, T.J.; Erich, D.L.

    1996-07-01

    Surrogate Oak Ridge Reservation (ORR) K-25 B&C Pond sludge was vitrified in a pilot-scale EnVit Co melter operated by Clemson University at the DOE/Industrial Center for Vitrification Research Center. This demonstration was performed for the Savannah River Technology Center (SRTC) in support of a Department of Energy (DOE) - Office of Technology Development (OTD) Technical Task Plan. The intent of the demonstration was to determine the feasibility of vitrifying actual K-25 B&C Pond sludge in an EnVitCo type melter. B&C Pond sludge is a mixed waste consisting primarily of various amounts of Ca, Fe, and Si, with Ni and U as the principal hazardous and radioactive components. The demonstration was successfully completed and homogeneous, durable glass was produced. Characterization of the glass product, as well as details of the demonstration, will be discussed.

  10. Do We Really Know how Much it Costs to Construct High Performance Buildings?

    SciTech Connect

    Livingston, Olga V.; Dillon, Heather E.; Halverson, Mark A.; Antonopoulos, Chrissi A.; Madison, Michael C.; Lucas, Robert G.

    2012-08-31

    Understanding the cost of energy efficient construction is critical to decision makers in building design, code development, and energy analysis. How much does it cost to upgrade from R-13 to R-19 in a building wall? How much do low-e windows really cost? Can we put a dollar figure on commissioning? Answers to these questions have a fuzzy nature, based on educated guesses and industry lore. The response depends on location, perspective, bulk buying, and hand waving. This paper explores the development of a web tool intended to serve as a publicly available repository of building component costs. In 2011 the U.S. Department of Energy (DOE) funded the launch of a web tool called the Building Component Cost Community (BC3), dedicated to publishing building component costs from documented sources, actively gathering verifiable cost data from the users, and collecting feedback from a wide range of participants on the quality of the posted cost data. The updated BC3 database, available at http://bc3.pnnl.gov, went live on April 30, 2012. BC3 serves as the ultimate source of the energy-related component costs for DOEs residential code development activities, including cost-effectiveness analyses. The paper discusses BC3 objectives, structure, functionality and the current content of the database. It aims to facilitate a dialog about the lack of verifiable transparent cost data, as well as introduce a web tool that helps to address the problem. The questions posed above will also be addressed by this paper, but they have to be resolved by the user community by providing feedback and cost data to the BC3 database, thus increasing transparency and removing information asymmetry.

  11. Collection efficiency of the soot-particle aerosol mass spectrometer (SP-AMS) for internally mixed particulate black carbon

    DOE PAGES [OSTI]

    Willis, M. D.; Lee, A. K. Y.; Onasch, T. B.; Fortner, E. C.; Williams, L. R.; Lambe, A. T.; Worsnop, D. R.; Abbatt, J. P. D.

    2014-12-18

    The soot-particle aerosol mass spectrometer (SP-AMS) uses an intra-cavity infrared laser to vaporize refractory black carbon (rBC) containing particles, making the particle beam–laser beam overlap critical in determining the collection efficiency (CE) for rBC and associated non-refractory particulate matter (NR-PM). This work evaluates the ability of the SP-AMS to quantify rBC and NR-PM mass in internally mixed particles with different thicknesses of organic coating. Using apparent relative ionization efficiencies for uncoated and thickly coated rBC particles, we report measurements of SP-AMS sensitivity to NR-PM and rBC, for Regal Black, the recommended particulate calibration material. Beam width probe (BWP) measurements aremore » used to illustrate an increase in sensitivity for highly coated particles due to narrowing of the particle beam, which enhances the CE of the SP-AMS by increasing the laser beam–particle beam overlap. Assuming complete overlap for thick coatings, we estimate CE for bare Regal Black particles of 0.6 ± 0.1, which suggests that previously measured SP-AMS sensitivities to Regal Black were underestimated by up to a factor of 2. The efficacy of the BWP measurements is highlighted by studies at a busy road in downtown Toronto and at a non-roadside location, which show particle beam widths similar to, but greater than that of bare Regal Black and coated Regal Black, respectively. Further BWP measurements at field locations will help to constrain the range of CE for fresh and aged rBC-containing particles. The ability of the SP-AMS to quantitatively assess the composition of internally mixed particles is validated through measurements of laboratory-generated organic coated particles, which demonstrate that the SP-AMS can quantify rBC and NR-PM over a wide range of particle compositions and rBC core sizes.« less

  12. Collection efficiency of the Soot-Particle Aerosol Mass Spectrometer (SP-AMS) for internally mixed particulate black carbon

    DOE PAGES [OSTI]

    Willis, M. D.; Lee, A. K. Y.; Onasch, T. B.; Fortner, E. C.; Williams, L. R.; Lambe, A. T.; Worsnop, D. R.; Abbatt, J. P. D.

    2014-05-26

    The soot-particle aerosol mass spectrometer (SP-AMS) uses an intra-cavity infrared laser to vaporize refractory black carbon (rBC) containing particles, making the particle beam–laser beam overlap critical in determining the collection efficiency (CE) for rBC and associated non-refractory particulate matter (NR-PM). This work evaluates the ability of the SP-AMS to quantify rBC and NR-PM mass in internally mixed particles with different thicknesses of organic coating. Using apparent relative ionization efficiencies for uncoated and thickly coated rBC particles, we report measurements of SP-AMS sensitivity to NR-PM and rBC, for Regal Black, the recommended particulate calibration material. Beam width probe (BWP) measurements aremore » used to illustrate an increase in sensitivity for highly coated particles due to narrowing of the particle beam, which enhances the CE of the SP-AMS by increasing the laser beam–particle beam overlap. Assuming complete overlap for thick coatings, we estimate CE for bare Regal Black particles of 0.6 ± 0.1, which suggests that previously measured SP-AMS sensitivities to Regal Black were underestimated by up to a factor of two. The efficacy of the BWP measurements is highlighted by studies at a busy road in downtown Toronto and at a non-roadside location, which show particle beam widths similar to, but greater than that of bare Regal Black and coated Regal Black, respectively. Further BWP measurements at field locations will help to constrain the range of CE for fresh and aged rBC-containing particles. The ability of the SP-AMS to quantitatively assess the composition of internally mixed particles is validated through measurements of laboratory-generated organic coated particles, which demonstrate that the SP-AMS can quantify rBC and NR-PM over a wide range of particle compositions and rBC core sizes.« less

  13. River Corridor Closure Contract Section J, Attachment J-10

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    0 Contract No. DE-AC06-05RL14655 A000 1 SECTION J, ATTACHMENT J-10 RCC SUBCONTRACTS EXISTING AT TIME OF SOLICITATION The following subcontracts are/were available for assignment to the Contractor at the time Solicitation No. DE-RP06-04RL14655 was issued: End Date Current Value Description Supplier 02/28/05 $ 5,994,091 100 B/C AREA PIPELINES RCI ENVIRONMENTAL, INC. 10/31/06 $ 1,324,615 100-BC BURIAL GROUNDS AND REMAINING SITES FEDERAL ENGINEERS & CONSTRUCTORS 12/31/05 $ 3,400,000 116-N-1 CRIB

  14. M Sub-Shell Cross Sections For 75-300 keV Proton Impact On W, Pt And Pb

    SciTech Connect

    Cipolla, Sam J.

    2011-06-01

    M sub-shell x-ray production cross sections from 75-300 keV proton bombardment of thick elemental targets of W, Pt, and Pb were measured and compared with ECPSSR and relativistic RPWBA-BC cross sections using different data bases of fluorescence yields, Coster-Kronig factors, and x-ray transition rates. With a few exceptions, the differences between the various data base comparisons were not significant. For different sub-shells, either ECPSSR or RPWBA-BC compared better with the measurements. In all cases, agreement with theory improved as the collision energy increased.

  15. Characterization of Black Carbon Mixing State

    DOE Data Explorer

    Sedlacek, Arthur; S, Satheesh; Springston, Stephen

    2013-11-06

    This measurement characterizes the types of BC emissions that result in near­surface BC­ containing particles in a region that is dominated by biomass and open pit/stove cooking. Specifically, examine three primary BC emission sources: (i) urban setting (e.g., fossil fuel emissions); and (ii) biomass burning. Source (i) are captured at the Indian Institute of Science (IISc) in Bangalore. Biomass emissions (ii) contains a series of 1­2 day measurement excursions to the rural area surrounding Bangalore.

  16. Catalytic conversion reactions in nanoporous systems with concentration-dependent selectivity: Statistical mechanical modeling

    DOE PAGES [OSTI]

    Garcia, Andres; Wang, Jing; Windus, Theresa L.; Sadow, Aaron D.; Evans, James W.

    2016-05-20

    Statistical mechanical modeling is developed to describe a catalytic conversion reaction A → Bc or Bt with concentration-dependent selectivity of the products, Bc or Bt, where reaction occurs inside catalytic particles traversed by narrow linear nanopores. The associated restricted diffusive transport, which in the extreme case is described by single-file diffusion, naturally induces strong concentration gradients. Hence, by comparing kinetic Monte Carlo simulation results with analytic treatments, selectivity is shown to be impacted by strong spatial correlations induced by restricted diffusivity in the presence of reaction and also by a subtle clustering of reactants, A.

  17. Fuel cells -- An increasingly competitive reality now for on-site applications and for mobile applications before the year 2000

    SciTech Connect

    Nurdin, M.A.B.

    1997-07-01

    A fuel cell converts the energy released when hydrogen and oxygen combine to produce water, directly into electricity and heat--without combustion and without moving parts. Fuel cells are inherently clean, highly efficient and reliable. The most attractive near-term application is commercial cogeneration followed by distributed power. A fleet of over 70 ONSI 200 kW cogeneration plants has demonstrated reliability and durability significantly better than mature conventional cogeneration equipment. The cities of Chicago and Vancouver will introduce small fleets of prototype commercial fuel cell buses over the next two years and Daimler-Benz launched a prototype fuel cell powered car in May 1996. The US and Japanese governments are providing commercialization support to accelerate the market introduction of near-term stationary systems and plant will achieve competitive costs by 1998/99. Commercial buses will become available in 1998 and cars are expected within the following decade.

  18. Monitoring of Olympic National Park Beaches to determine fate and effects of spilled bunker C fuel oil

    SciTech Connect

    Strand, J.A.; Cullinan, V.I.; Crecelius, E.A.; Fortman, T.J.; Citterman, R.J.; Fleischmann, M.L.

    1990-10-01

    On December 23, 1988, the barge Nestucca was accidentally struck by its tow, a Souse Brothers Towing Company tug, releasing approximately 230,000 gallons of Bunker C fuel oil and fouling beaches from Grays Harbor north to Vancouver Island. Affected beaches in Washington included a 40-mile-long strip that has been recently added to Olympic National Park. The purpose of the monitoring program documented in this report was to determine the fate of spilled Bunker C fuel oil on selected Washington coastal beaches. We sought to determine (1) how much oil remained in intertidal and shallow subtidal habitats following clean-up and weathering, (2) to what extent intertidal and/or shallow subtidal biotic assemblages have been contaminated, and (3) how rapidly the oil has left the ecosystem. 45 refs., 18 figs., 8 tabs.

  19. Numerical calculation of protein-ligand binding rates through solution of the Smoluchowski equation using smoothed particle hydrodynamics

    SciTech Connect

    Pan, Wenxiao; Daily, Michael; Baker, Nathan A.

    2015-05-07

    Background: The calculation of diffusion-controlled ligand binding rates is important for understanding enzyme mechanisms as well as designing enzyme inhibitors. Methods: We demonstrate the accuracy and effectiveness of a Lagrangian particle-based method, smoothed particle hydrodynamics (SPH), to study diffusion in biomolecular systems by numerically solving the time-dependent Smoluchowski equation for continuum diffusion. Unlike previous studies, a reactive Robin boundary condition (BC), rather than the absolute absorbing (Dirichlet) BC, is considered on the reactive boundaries. This new BC treatment allows for the analysis of enzymes with imperfect reaction rates. Results: The numerical method is first verified in simple systems and then applied to the calculation of ligand binding to a mouse acetylcholinesterase (mAChE) monomer. Rates for inhibitor binding to mAChE are calculated at various ionic strengths and compared with experiment and other numerical methods. We find that imposition of the Robin BC improves agreement between calculated and experimental reaction rates. Conclusions: Although this initial application focuses on a single monomer system, our new method provides a framework to explore broader applications of SPH in larger-scale biomolecular complexes by taking advantage of its Lagrangian particle-based nature.

  20. ConferenceCall

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Non-Treaty Storage Agreement Update Public Open Houses May-June 2011 2 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Status of Non-Treaty Storage Agreement BPA and BC...

  1. Tri-Party Agreement Project Manager List by Operable Unit

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    9, 2016 Name EPA PM Ecology PM DOE PM Assistant Manager Lead Regulatory Agency 1 Unit Description 100-BC-1 Buelow, L.C. Varljen, R.E. French, M.S. Corey, R.J. EPA CPP 100B Area, ...

  2. Nanometer-scale chemical heterogeneities of black carbon materials and their impacts on PCB sorption properties: soft X-ray spectromicroscopy study

    SciTech Connect

    Tae Hyun Yoon; Karim Benzerara; Sungwoo Ahn; Richard G. Luthy; Tolek Tyliszczak; Gordon E. Brown, Jr.

    2006-10-01

    Synchrotron-based soft X-ray spectromicroscopy was used to probe nanometer-scale chemical heterogeneities of black carbon (BC) materials, including anthracite coal, coke, and activated carbon (AC), and to study their impact on the partitioning of one type of polychlorinated biphenyls (PCB-166: 2,3,4,4',5,6 hexachloro biphenyl) onto AC particles. Various carbon species (e.g., aromatic, ketonic/phenolic, and carboxylic functional groups) were found in all of the BC materials examined, and impurities (e.g., carbonate and potassium ions in anthracite coal) were identified in nanometer-scale regions of these samples. The show that these chemical heterogeneities in AC particles influence their sorption of hydrophobic organic compounds (HOCs). PCB-166 was found to accumulate preferentially on AC particles with the highest content of aromatic functionalities. These new findings from X-ray spectromicroscopy have the following implications for the role of BC materials in the environment: (1) the functional groups of BC materials vary on a 25-nanometer scale, and so does the abundance of the HOCs; (2) molecular-level characterization of HOC sorption preferences on AC will lead to an improved understanding of AC sorption properties for the remediation of HOCs in soils and sediments. 40 refs., 3 figs.

  3. Delegations - DOE Directives, Delegations, and Requirements

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Delegations Current By Functional Area By Position Designations Assignments Rescinded by Website Administrator More filters Less filters Issue Date Start date End date Filters applied Δ Hide filters ∇ Show filters (0) [X] Remove all 604be8a4f5b9904f643538bf983bc723

  4. Treatability studies of actual listed waste sludges from the Oak Ridge Reservation (ORR)

    SciTech Connect

    Jantzen, C.M.; Peeler, D.K.; Gilliam, T.M.; Bleier, A.; Spence, R.D.

    1996-05-06

    Oak Ridge National Laboratory (ORNL) and Savannah River Technology Center (SRTC) are investigating vitrification for various low-level and mixed wastes on the Oak Ridge Reservation (ORR). Treatability studies have included surrogate waste formulations at the laboratory-, pilot-, and field-scales and actual waste testing at the laboratory- and pilot-scales. The initial waste to be processing through SRTC`s Transportable Vitrification System (TVS) is the K-1407-B and K-1407-C (B/C) Pond sludge waste which is a RCRA F-listed waste. The B/C ponds at the ORR K-25 site were used as holding and settling ponds for various waste water treatment streams. Laboratory-, pilot-, and field- scale ``proof-of-principle`` demonstrations are providing needed operating parameters for the planned field-scale demonstration with actual B/C Pond sludge waste at ORR. This report discusses the applied systems approach to optimize glass compositions for this particular waste stream through laboratory-, pilot-, and field-scale studies with surrogate and actual B/C waste. These glass compositions will maximize glass durability and waste loading while optimizing melt properties which affect melter operation, such as melt viscosity and melter refractory corrosion. Maximum waste loadings minimize storage volume of the final waste form translating into considerable cost savings.

  5. Numerical calculation of protein-ligand binding rates through solution of the Smoluchowski equation using smoothed particle hydrodynamics

    DOE PAGES [OSTI]

    Pan, Wenxiao; Daily, Michael; Baker, Nathan A.

    2015-05-07

    Background: The calculation of diffusion-controlled ligand binding rates is important for understanding enzyme mechanisms as well as designing enzyme inhibitors. Methods: We demonstrate the accuracy and effectiveness of a Lagrangian particle-based method, smoothed particle hydrodynamics (SPH), to study diffusion in biomolecular systems by numerically solving the time-dependent Smoluchowski equation for continuum diffusion. Unlike previous studies, a reactive Robin boundary condition (BC), rather than the absolute absorbing (Dirichlet) BC, is considered on the reactive boundaries. This new BC treatment allows for the analysis of enzymes with “imperfect” reaction rates. Results: The numerical method is first verified in simple systems and thenmore » applied to the calculation of ligand binding to a mouse acetylcholinesterase (mAChE) monomer. Rates for inhibitor binding to mAChE are calculated at various ionic strengths and compared with experiment and other numerical methods. We find that imposition of the Robin BC improves agreement between calculated and experimental reaction rates. Conclusions: Although this initial application focuses on a single monomer system, our new method provides a framework to explore broader applications of SPH in larger-scale biomolecular complexes by taking advantage of its Lagrangian particle-based nature.« less

  6. Microscopical Examination of Ancient Silver Coins

    SciTech Connect

    Pistofidis, N.; Vourlias, G.; Pavlidou, El.; Stergioudis, G.; Polychroniadis, E. K.; Dilo, T.; Prifti, I.; Bilani, O.; Civici, N.; Stamati, F.; Gjongecaj, Sh.

    2007-04-23

    The microstructure of three silver coins of the IIId century B.C. from the Illyrian king Monounios, the ancient Greek city of Dyrrachion and of Korkyra was studied with XRF and microscopy. From this investigation it turned out that these coins have different chemical composition and microstructure that imply different minting method.

  7. CX-011224: Categorical Exclusion Determination

    Energy.gov [DOE]

    Replacement of Deep-Anode Ground Bed Sites for Big Hill Cavern 104 and Site Unit 1 “A”, and BC Cavern 18 CX(s) Applied: B1.3 Date: 10/01/2013 Location(s): Texas Offices(s): Strategic Petroleum Reserve Field Office

  8. Historical emissions of black and organic carbon aerosol from energy-related combustion, 1850-2000 - article no. GB2018

    SciTech Connect

    Bond, T.C.; Bhardwaj, E.; Dong, R.; Jogani, R.; Jung, S.K.; Roden, C.; Streets, D.G.; Trautmann, N.M.

    2007-05-15

    We present an emission inventory of primary black carbon (BC) and primary organic carbon (OC) aerosols from fossil fuel and biofuel combustion between 1850 and 2000. We reconstruct fossil fuel consumption and represent changes in technology on a national and sectoral basis. Our estimates rely on new estimates of biofuel consumption, and updated emission factors for old technologies. Emissions of black carbon increase almost linearly, totaling about 1000 Gg in 1850, 2200 Gg in 1900, 3000 Gg in 1950, and 4400 Gg in 2000. Primary organic carbon shows a similar pattern, with emissions of 4100 Gg, 5800 Gg, 6700 Gg, and 8700 Gg in 1850, 1900, 1950, and 2000, respectively. Biofuel is responsible for over half of BC emission until about 1890, and dominates energy-related primary OC emission throughout the entire period. Coal contributes the greatest fraction of BC emission between 1880 and 1975, and is overtaken by emissions from biofuel around 1975, and by diesel engines around 1990. Previous work suggests a rapid rise in BC emissions between 1950 and 2000. This work supports a more gradual increase between 1950 and 2000, similar to the increase between 1850 and 1925; implementation of clean technology is a primary reason.

  9. HEALTH AhO SAFETY DIVISION Industrial Hygiene or Medical Dept...

    Office of Legacy Management (LM)

    No, Ro Oil PH Be Th Nc0 NO 8506 BcA-j &A- ii JC cL"w-- Anolyticol Chemistry Secrion: Date Received--b4-56 by Lab* Date Reported 6-X-66 bu I&b , Method of Analyair Vluarima4rFpt ...

  10. 08_15_2004.tex

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    1 c,d 35.6 0.6 b,c , p 2, 3, 4, 6, 7, 9, 10, 12 2.32 20 c 3 + ; 1 350 30 c 4, 6, 7, 9, 10, 12 3.5 500 c 2 - 8 4 MeV c 6, 7 10.619 9 0 + ; 2 < 60 12 a See...

  11. Light absorption from particulate impurities in snow and ice determined by spectrophotometric analysis of filters

    SciTech Connect

    Grenfell, Thomas C.; Doherty, Sarah J.; Clarke, Antony D.; Warren, Stephen G.

    2011-05-10

    Light absorption by particulate impurities in snow and ice can affect the surface albedo and is important for the climate. The absorption properties of these particles can be determined by collecting and melting snow samples and extracting the particulate material by filtration of the meltwater. This paper describes the optical design and testing of a new instrument to measure the absorption spectrum from 400 to 750 nm wavelength of the particles collected on filters using an ''integrating-sandwich'' configuration. The measured absorption is shown to be unaffected by scattering of light from the deposited particulates. A set of calibration standards is used to derive an upper limit for the concentration of black carbon (BC) in the snow. The wavelength dependence of the absorption spectra from 450 to 600 nm is used to calculate an absorption Angstrom exponent for the aerosol. This exponent is used to estimate the actual BC concentration in the snow samples as well as the relative contributions of BC and non-BC constituents to the absorption of solar radiation integrated over the wavelength band 300 to 750 nm.

  12. Concept design and optimization of MSW management system

    SciTech Connect

    Palmer, J.R.

    1999-03-01

    The maximum recovery of recyclables from municipal solid waste (MSW) using material recovery facility (MRF) technologies is determined. Two waste streams at Spangdahlem AB, Germany are analyzed; stationary container wastes and commingled recyclables. Three schemes are considered, one for each waste stream, and one for both. Multi-criteria decision making is the methodology. The criteria are recovery and annual benefit minus cost (B-C). Recovery is determined using the recovery factor transfer function of Diaz et al. (1982). Each technology, or unit operation, in a sequence is independent because particle size distribution of each waste component is considered. B-C is based on revenue from sold recyclables, tipping fees saved by not landfilling separated waste, and manual labor and amortized equipment costs. Six unit operations are considered: eddy current separator (ECS), magnet, air classifier, screen, manual sort, and shredder. Sequences one to six operations long are considered. Three heuristics eliminate 42,179 of 55,986 potential sequences as infeasible. The result is domination by a MRF to process both wastes and a tradeoff between 35.7% recovery of the total at an annual B-C of $0.95 million and recovery of 35.6% at an annual B-C of $1.02 million. Hand sort recovers the most, and is economical.

  13. Grand Challenges of Characterization & Modeling of Cellulose Nanomaterials

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Challenges of Characterization & Modeling of Cellulose Nanomaterials Robert Moon Adjunct Assistant Professor Materials Engineering Purdue University Materials Research Engineer US Forest Service Forest Products Laboratory DOE- Sustainable Nanomaterials Workshop, 26 June, 2012 Cellulose Nanomaterials (CN) 2 * Influence: * Cellulose Source * Extraction Process * Two Particle Morphologies: * Rod: CNC, NCC, NCW, NCXLS * Fibrillar: CNF, NFC, MFC, BC, AC * Questions: * What to Characterize? * How

  14. Spatial and kinematic distributions of transition populations in intermediate redshift galaxy clusters

    SciTech Connect

    Crawford, Steven M.; Wirth, Gregory D.; Bershady, Matthew A. E-mail: wirth@keck.hawaii.edu

    2014-05-01

    We analyze the spatial and velocity distributions of confirmed members in five massive clusters of galaxies at intermediate redshift (0.5 < z < 0.9) to investigate the physical processes driving galaxy evolution. Based on spectral classifications derived from broad- and narrow-band photometry, we define four distinct galaxy populations representing different evolutionary stages: red sequence (RS) galaxies, blue cloud (BC) galaxies, green valley (GV) galaxies, and luminous compact blue galaxies (LCBGs). For each galaxy class, we derive the projected spatial and velocity distribution and characterize the degree of subclustering. We find that RS, BC, and GV galaxies in these clusters have similar velocity distributions, but that BC and GV galaxies tend to avoid the core of the two z ? 0.55 clusters. GV galaxies exhibit subclustering properties similar to RS galaxies, but their radial velocity distribution is significantly platykurtic compared to the RS galaxies. The absence of GV galaxies in the cluster cores may explain their somewhat prolonged star-formation history. The LCBGs appear to have recently fallen into the cluster based on their larger velocity dispersion, absence from the cores of the clusters, and different radial velocity distribution than the RS galaxies. Both LCBG and BC galaxies show a high degree of subclustering on the smallest scales, leading us to conclude that star formation is likely triggered by galaxy-galaxy interactions during infall into the cluster.

  15. An unusual insertion/deletion in the gene encoding the. beta. -subunit of propionyl-CoA carboxylase is a frequent mutation in Caucasian propionic acidemia

    SciTech Connect

    Tahara, T.; Kraus, J.P.; Rosenberg, L.E. )

    1990-02-01

    Propionic acidemia is an inherited disorder of organic acid metabolism that is caused by deficiency of propionly-CoA carboxylase. Affected patients fall into two complementation groups, pccA and pccBC (subgroups B, C, and BC), resulting from deficiency of the nonidentical {alpha} and {beta} subunits of PCC, respectively. The authors have detected an unusual insertion/deletion in the DNA of patients from the pccBC and pccC subgroups that replaces 14 nucleotides in the coding sequence of the {beta} subunit with 12 nucleotides unrelated to this region of the gene. Among 14 unrelated Caucasian patients in the pccBc complementation group, this unique mutation was found in 8 of 28 mutant alleles examined. Mutant allele-specific oligonucleotide hybridization to amplified genomic DNAs revealed that the inserted 12 nucleotides do not originate in an {approx}1000-bp region around the mutation. In the course of the investigation, they identified another mutation in the same exon: a 3-bp in-frame deletion that eliminates one of two isoleucine codons immediately preceding the Msp I site. Two unrelated patients were compound heterozygotes for this single-codon deletion and for the insertion/deletion described above. They conclude that either there is a propensity for the PCC {beta}-subunit gene to undergo mutations of this sort at this position or, more likely, the mutations in all of the involved Caucasian patients have a common origin in preceding generations.

  16. Development of an aerosol microphysical module: Aerosol Two-dimensional bin module for foRmation and Aging Simulation (ATRAS)

    SciTech Connect

    Matsui, H.; Koike, Makoto; Kondo, Yutaka; Fast, Jerome D.; Takigawa, M.

    2014-09-30

    Number concentrations, size distributions, and mixing states of aerosols are essential parameters for accurate estimation of aerosol direct and indirect effects. In this study, we developed an aerosol module, designated Aerosol Two-dimensional bin module for foRmation and Aging Simulation (ATRAS), that can represent these parameters explicitly by considering new particle formation (NPF), black carbon (BC) aging, and secondary organic aerosol (SOA) processes. A two-dimensional bin representation is used for particles with dry diameters from 40 nm to 10 m to resolve both aerosol size (12 bins) and BC mixing state (10 bins) for a total of 120 bins. The particles with diameters from 1 to 40 nm are resolved using an additional 8 size bins to calculate NPF. The ATRAS module was implemented in the WRF-chem model and applied to examine the sensitivity of simulated mass, number, size distributions, and optical and radiative parameters of aerosols to NPF, BC aging and SOA processes over East Asia during the spring of 2009. BC absorption enhancement by coating materials was about 50% over East Asia during the spring, and the contribution of SOA processes to the absorption enhancement was estimated to be 10 20% over northern East Asia and 20 35% over southern East Asia. A clear north-south contrast was also found between the impacts of NPF and SOA processes on cloud condensation nuclei (CCN) concentrations: NPF increased CCN concentrations at higher supersaturations (smaller particles) over northern East Asia, whereas SOA increased CCN concentrations at lower supersaturations (larger particles) over southern East Asia. Application of ATRAS to East Asia also showed that the impact of each process on each optical and radiative parameter depended strongly on the process and the parameter in question. The module can be used in the future as a benchmark model to evaluate the accuracy of simpler aerosol models and examine interactions between NPF, BC aging, and SOA processes

  17. Dissecting the cAMP-inducible allosteric switch in protein kinase A RI alpha

    SciTech Connect

    Sjoberg, T.J.; Kornev, A.P.; Taylor, S.S.; /SLAC

    2012-08-23

    The regulatory subunits of cAMP-dependent protein kinase (PKA) are the major receptors of cAMP in most eukaryotic cells. As the cyclic nucleotide binding (CNB) domains release cAMP and bind to the catalytic subunit of PKA, they undergo a major conformational change. The change is mediated by the B/C helix in CNB-A, which extends into one long helix that now separates the two CNB domains and docks onto the surface of the catalytic subunit. We explore here the role of three key residues on the B/C helix that dock onto the catalytic subunit, Arg226, Leu233, and Met 234. By replacing each residue with Ala, we show that each contributes significantly to creating the R:C interface. By also deleting the second CNB domain (CNB-B), we show furthermore that CNB-B is a critical part of the cAMP-induced conformational switch that dislodges the B/C helix from the surface of the catalytic subunit. Without CNB-B the K{sub a} for activation by cAMP increases from 80 to 1000 nM. Replacing any of the key interface residues with Ala reduces the K{sub a} to 25-40 nM. Leu233 and M234 contribute to a hydrophobic latch that binds the B/C helix onto the large lobe of the C-subunit, while Arg226 is part of an electrostatic switch that couples the B/C helix to the phosphate binding cassette where the cAMP docks.

  18. Single-Centre Experience with Percutaneous Cryoablation of Breast Cancer in 23 Consecutive Non-surgical Patients

    SciTech Connect

    Cazzato, Roberto Luigi; Lara, Christine Tunon de; Buy, Xavier Ferron, Stéphane Hurtevent, Gabrielle; Fournier, Marion; Debled, Marc; Palussière, Jean

    2015-10-15

    AimTo present our single-centre prospective experience on the use of cryoablation (CA) applied to treat primary breast cancer (BC) in a cohort of patients unsuitable for surgical treatment.Materials and MethodsTwenty-three consecutive post-menopausal female patients (median age 85 years; range 56–96) underwent percutaneous CA of unifocal, biopsy-proven BC, under ultrasound/computed tomography (US/CT) guidance. Clinical and dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) follow-ups were systematically scheduled at 3, 12, 18 and 24 months. Local tumour control was assessed by comparing baseline and follow-up DCE-MRI.ResultsTwenty-three BC (median size 14 mm) were treated under local anaesthesia (78.3 %) or local anaesthesia and conscious sedation (21.7 %). Median number of cryo-probes applied per session was 2.0. A “dual-freezing” protocol was applied for the first ten patients and a more aggressive “triple-freezing” protocol for the remaining 13. Median follow-up was 14.6 months. Five patients recurred during follow-up and two were successfully re-treated with CA. Five patients presented immediate CA-related complications: four hematomas evolved uneventfully at 3-month follow-up and one skin burn resulted in skin inflammation and skin retraction at 3 and 12 months, respectively.ConclusionsPercutaneous CA is safe and well tolerated for non-resected elderly BC patients. Procedures can be proposed under local anaesthesia only. Given the insulation properties of the breast gland, aggressive CA protocols are required. Prospective studies are needed to better understand the potential role of CA in the local treatment of early BC.

  19. Bromocriptine increased operant responding for high fat food but decreased chow intake in both obesity-prone and resistant rats

    SciTech Connect

    Thanos, P.K.; Wang, G.; Thanos, P.K.; Cho, J. Kim, R.; Michaelides, M.; Primeaux, S.; Bray, G.; Wang, G.-J.; Volkow, N.D.

    2010-10-27

    Dopamine (DA) and DAD{sub 2} receptors (D2R) have been implicated in obesity and are thought to be involved in the rewarding properties of food. Osborne-Mendel (OM) rats are susceptible to diet induced obesity (DIO) while S5B/P (S5B) rats are resistant when given a high-fat diet. Here we hypothesized that the two strains would differ in high-fat food self-administration (FSA) and that the D2R agonist bromocriptine (BC) would differently affect their behavior. Ad-libitum fed OM and S5B/P rats were tested in a FSA operant chamber and were trained to lever press for high-fat food pellets under a fixed-ratio (FR1) and a progressive ratio (PR) schedule. After sixteen days of PR sessions, rats were treated with three different doses of BC (1, 10 and 20 mg/kg). No significant differences were found between the two strains in the number of active lever presses. BC treatment (10 mg/kg and 20 mg/kg) increased the number of active lever presses (10 mg/kg having the strongest effect) whereas it decreased rat chow intake in the home cage with equivalent effects in both strains. These effects were not observed on the day of BC administration but on the day following its administration. Our results suggest that these two strains have similar motivation for procuring high fat food using this paradigm. BC increased operant responding for high-fat pellets but decreased chow intake in both strains, suggesting that D2R stimulation may have enhanced the motivational drive to procure the fatty food while correspondingly decreasing the intake of regular food. These findings suggest that susceptibility to dietary obesity (prior to the onset of obesity) may not affect operant motivation for a palatable high fat food and that differential susceptibility to obesity may be related to differential sensitivity to D2R stimulation.

  20. Quantification of online removal of refractory black carbon using laser-induced incandescence in the single particle soot photometer

    DOE PAGES [OSTI]

    Aiken, Allison C.; McMeeking, Gavin R.; Levin, Ezra J. T.; Dubey, Manvendra K.; DeMott, Paul J.; Kreidenweis, Sonia M.

    2016-04-05

    Refractory black carbon (rBC) is an aerosol that has important impacts on climate and human health. rBC is often mixed with other species, making it difficult to isolate and quantify its important effects on physical and optical properties of ambient aerosol. To solve this measurement challenge, a new method to remove rBC was developed using laser-induced incandescence (LII) by Levin et al. in 2014. Application of the method with the Single Particle Soot Photometer (SP2) is used to determine the effects of rBC on ice nucleating particles (INP). Here, we quantify the efficacy of the method in the laboratory usingmore » the rBC surrogate Aquadag. Polydisperse and mobility-selected samples (100–500 nm diameter, 0.44–36.05 fg), are quantified by a second SP2. Removal rates are reported by mass and number. For the mobility-selected samples, the average percentages removed by mass and number of the original size are 88.9 ± 18.6% and 87.3 ± 21.9%, respectively. Removal of Aquadag is efficient for particles >100 nm mass-equivalent diameter (dme), enabling application for microphysical studies. However, the removal of particles ≤100 nm dme is less efficient. Absorption and scattering measurements are reported to assess its use to isolate brown carbon (BrC) absorption. Scattering removal rates for the mobility-selected samples are >90% on average, yet absorption rates are 53% on average across all wavelengths. Therefore, application to isolate effects of microphysical properties determined by larger sizes is promising, but will be challenging for optical properties. Lastly, the results reported also have implications for other instruments employing internal LII, e.g., the Soot Particle Aerosol Mass Spectrometer (SP-AMS).« less

  1. Sensitivity studies on the impacts of Tibetan Plateau snowpack pollution on the Asian hydrological cycle and monsoon climate

    SciTech Connect

    Qian, Yun; Flanner, M. G.; Leung, Lai-Yung R.; Wang, Weiguo

    2011-03-02

    The Tibetan Plateau (TP), the highest and largest plateau in the world, has long been identified to be critical in regulating the Asian monsoon climate and hydrological cycle. The snowpack and glaciers over the TP provide fresh water to billions of people in Asian countries, but the TP glaciers have been retreating extensively at a speed faster than any other part of the world. In this study a series of experiments with a global climate model are designed to simulate black carbon (BC) and dust in snow and their radiative forcing and to assess the relative impacts of anthropogenic CO2 and carbonaceous particles in the atmosphere and snow, respectively, on the snowpack over the TP, as well as their subsequent impacts on the Asian monsoon climate and hydrological cycle. Results show a large BC content in snow over the TP, especially the southern slope, with concentration larger than 100 k/kg. Because of the high aerosol content in snow and large incident solar radiation in the low latitude and high elevation, the TP exhibits the largest surface radiative forcing induced by aerosols (e.g. BC, Dust) in snow compared to other snow-covered regions in the world. The aerosol-induced snow albedo perturbations generate surface radiative forcing of 5-25 W m-2 during spring, with a maximum in April or May. BC-in-snow increases the surface air temperature by around 1.0oC averaged over the TP and reduces snowpack over the TP more than that induced by pre-industrial to present CO2 increase and carbonaceous particles in the atmosphere during spring. As a result, runoff increases during late winter and early spring but decreases during late spring and early summer (i.e. a trend toward earlier melt dates). The snowmelt efficacy, defined as the snowpack reduction per unit degree of warming induced by the forcing agent, is 1-4 times larger for BC-in-snow than CO2 increase during April-July, indicating that BC-in-snow more efficiently accelerates snowmelt because the increased net

  2. Canada-USA Salmon Shelf Survival Study, 2007-2008 Annual Report.

    SciTech Connect

    Trudel, Marc; Tucker, Strahan; Morris, John

    2009-03-09

    Historically, salmon stocks from the Columbia River and Snake River formed one of the most valuable fisheries on the west coast of North America. However, salmon and steelhead returns sharply declined during the 1980s and 1990s to reach nearly 1 million fish. Although several factors may be responsible for the decline of Columbia River salmon and steelhead, there is increasing evidence that these drastic declines were primarily attributable to persistently unfavorable ocean conditions. Hence, an understanding of the effects of ocean conditions on salmon production is required to forecast the return of salmon to the Columbia River basin and to assess the efficacy of mitigation measures such as flow regulation on salmon resources in this system. The Canadian Program on High Seas Salmon has been collecting juvenile salmon and oceanographic data off the west coast of British Columbia and Southeast Alaska since 1998 to assess the effects of ocean conditions on the distribution, migration, growth, and survival of Pacific salmon. Here, we present a summary of the work conducted as part of the Canada-USA Salmon Shelf Survival Study during the 2008 fiscal year and compare these results with those obtained from previous years. The working hypothesis of this research is that fast growth enhances the marine survival of salmon, either because fast growing fish quickly reach a size that is sufficient to successfully avoid predators, or because they accumulate enough energy reserves to better survive their first winter at sea, a period generally considered critical in the life cycle of salmon. Sea surface temperature decreased from FY05 to FY08, whereas, the summer biomass of phytoplankton increased steadily off the west coast of Vancouver Island from FY05 to FY08. As in FY07, zooplankton biomass was generally above average off the west coast of Vancouver Island in FY08. Interestingly, phytoplankton and zooplankton biomass were higher in FY08 than was expected from the observed

  3. Molecular Siganture and Sources of Biochemical Recalcitrance of Organic C in Amozonian Dark Earths

    SciTech Connect

    Solomon,D.; Lehmann, J.; Thies, J.; Schafer, T.; Liang, B.; Kinyangi, J.; Neves, E.; Peterson, J.; Liuzao, F.; Skjemstad, J.

    2007-01-01

    Amazonian Dark Earths (ADE) are a unique type of soils developed through intense anthropogenic activities that transformed the original soils into Anthrosols throughout the Brazilian Amazon Basin. We conducted a comparative molecular-level investigation of soil organic C (SOC) speciation in ADE (ages between 600 and 8700 years B.P.) and adjacent soils using ultraviolet photo-oxidation coupled with {sup 13}C cross polarization-magic angle spinning nuclear magnetic resonance (CP-MAS NMR), synchrotron-based Fourier transform infrared-attenuated total reflectance (Sr-FTIR-ATR) and C (1s) near edge X-ray absorption fine structure (NEXAFS) spectroscopy to obtain deeper insights into the structural chemistry and sources of refractory organic C compounds in ADE. Our results show that the functional group chemistry of SOC in ADE was considerably different from adjacent soils. The SOC in ADE was enriched with: (i) aromatic-C structures mostly from H- and C-substituted aryl-C, (ii) O-rich organic C forms from carboxylic-C, aldehyde-C, ketonic-C and quinine-C, and (iii) diverse group of refractory aliphatic-C moieties. The SOC in adjacent soils was predominantly composed of O-alkyl-C and methoxyl-C/N-alkyl-C structures and elements of labile aliphatic-C functionalities. Our study suggests that the inherent molecular structures of organic C due to selective accumulation of highly refractory aryl-C structures seems to be the key factor for the biochemical recalcitrance and stability of SOC in ADE. Anthropogenic enrichment with charred carbonaceous residues from biomass-derived black C (BC) is presumed to be the precursor of these recalcitrant polyaromatic structures. Our results also highlight the complementary role that might be played by organic C compounds composed of O-containing organic C moieties and aliphatic-C structures that persisted for millennia in these anthropic soils as additional or secondary sources of chemical recalcitrance of SOC in ADE. These organic C

  4. RANDOM BALLISTIC INTERPRETATION OF NONLINEAR GUIDING CENTER THEORY

    SciTech Connect

    Ruffolo, D.; Pianpanit, T.; Matthaeus, W. H.; Chuychai, P. E-mail: th_ee@hotmail.com E-mail: p.chuychai@sci.mfu.ac.th

    2012-03-10

    Nonlinear guiding center (NLGC) theory has been used to explain the asymptotic perpendicular diffusion coefficient {kappa} of energetic charged particles in a turbulent magnetic field, which can be applied to better understand cosmic ray transport. Here we re-derive NLGC, replacing the assumption of diffusive decorrelation with random ballistic decorrelation (RBD), which yields an explicit formula for {kappa} . We note that scattering processes can cause a reversal of the guiding center motion along the field line, i.e., 'backtracking', leading to partial cancellation of contributions to {kappa}, especially for low-wavenumber components of the magnetic turbulence. We therefore include a heuristic backtracking correction (BC) that can be used in combination with RBD. In comparison with computer simulation results for various cases, NLGC with RBD and BC provides a substantially improved characterization of the perpendicular diffusion coefficient for a fluctuation amplitude less than or equal to the large-scale magnetic field.

  5. Pacific Northwest Storms Situation Report # 7

    SciTech Connect

    2006-12-21

    Despite a small storm that came through the area last night with wind gusts peaking at 45 MPH, progress continues to be made in restoring power to customers who lost power during the December 14-15 storms which hit the Pacific Northwest region. Currently, 95,971 customers remain without power, down from 1.8 million customers. The wind storm which affected the area yesterday was not as bad as previously expected, with the majority of the customer outages in the BC Hydro region, and 3,000 additional customer outages in the Puget Sound Energy service area. The customers without power represent 5 percent of customers in the affected utility service areas of Washington. The majority of customers without power are served by Puget Sound Energy, BC Hydro, and Seattle City Light.

  6. A Study of the Optical Properties of Ice Crystals with Black Carbon Inclusions

    SciTech Connect

    Arienti, Marco; Yang, Xiaoyuan; Kopacz, Adrian M; Geier, Manfred

    2015-09-01

    The report focu ses on the modification of the optical properties of ice crystals due to atmospheric black car bon (BC) contamination : the objective is to advance the predictive capabilities of climate models through an improved understanding of the radiative properties of compound particles . The shape of the ice crystal (as commonly found in cirrus clouds and cont rails) , the volume fraction of the BC inclusion , and its location inside the crystal are the three factors examined in this study. In the multiscale description of this problem, where a small absorbing inclusion modifies the optical properties of a much la rger non - absorbing particle, state - of - the - art discretization techniques are combined to provide the best compromise of flexibility and accuracy over a broad range of sizes .

  7. Near-Term Climate Mitigation by Short-Lived Forcers

    SciTech Connect

    Smith, Steven J.; Mizrahi, Andrew H.

    2013-08-12

    Emissions reductions focused on anthropogenic climate forcing agents with relatively short atmospheric lifetimes such as methane (CH4) and black carbon (BC) have been suggested as a strategy to reduce the rate of climate change over the next several decades. We find that reductions of methane and BC would likely have only a modest impact on near-term climate warming. Even with maximally feasible reductions phased in from 2015 to 2035, global mean temperatures in 2050 are reduced by 0.16 °C, with an uncertainty range of 0.04-0.36°C, with the high end of this range only possible if total historical aerosol forcing is small. More realistic mitigation scenarios would likely provide a smaller climate benefit. The climate benefits from targeted reductions in short-lived forcing agents are smaller than previously estimated and are not substantially different in magnitude from the benefits due to a comprehensive climate policy.

  8. CO2 Supermarket Refrigeration Systems for Southeast Asia and the USA

    SciTech Connect

    Sharma, Vishaldeep; Fricke, Brian A; Bansal, Pradeep

    2014-01-01

    This paper presents a comparative analysis of the annual energy consumption of these refrigeration systems in eighty eight cities from all climate zones in Southeast Asia. Also, the performance of the CO2 refrigeration systems is compared to the baseline R404A multiplex direct expansion (DX) system. Finally, the overall performance of the CO2 refrigeration systems in various climatic conditions in Southeast Asia is compared to that in the United States. For the refrigeration systems investigated, it was found that the Transcritical Booster System with Bypass Compressor (TBS-BC) performs better or equivalent to the R404A multiplex DX system in the northern regions of Southeast Asia (China and Japan). In the southern regions of Southeast Asia (India, Bangladesh, Burma), the R404A multiplex DX system and the Combined Secondary Cascade (CSC) system performs better than the TBS-BC.

  9. Measurement of boron and carbon fluxes in cosmic rays with the PAMELA experiment

    SciTech Connect

    Adriani, O.; Bongi, M.; Barbarino, G. C.; Bazilevskaya, G. A.; Bellotti, R.; Bruno, A.; Boezio, M.; Bonvicini, V.; Carbone, R.; Bogomolov, E. A.; Bottai, S.; Cafagna, F.; Campana, D.; Carlson, P.; Casolino, M.; De Donato, C.; De Santis, C.; De Simone, N.; Castellini, G.; Danilchenko, I. A.; and others

    2014-08-20

    The propagation of cosmic rays inside our galaxy plays a fundamental role in shaping their injection spectra into those observed at Earth. One of the best tools to investigate this issue is the ratio of fluxes for secondary and primary species. The boron-to-carbon (B/C) ratio, in particular, is a sensitive probe to investigate propagation mechanisms. This paper presents new measurements of the absolute fluxes of boron and carbon nuclei as well as the B/C ratio from the PAMELA space experiment. The results span the range 0.44-129 GeV/n in kinetic energy for data taken in the period 2006 July to 2008 March.

  10. Measurement of the B-cmeson lifetime in the decay B-c→J/ψπ⁻

    DOE PAGES [OSTI]

    Aaltonen, T.; Álvarez González, B.; Amerio, S.; Amidei, D.; Anastassov, A.; Annovi, A.; Antos, J.; Apollinari, G.; Appel, J. A.; Arisawa, T.; et al

    2013-01-02

    The lifetime of the B-c meson is measured using 272 exclusive B-c→J/ψ(→μ⁺μ⁻)π⁻ decays reconstructed in data from proton-antiproton collisions corresponding to an integrated luminosity of 6.7 fb⁻¹ recorded by the CDF II detector at the Fermilab Tevatron. The lifetime of the B-cmeson is measured to be τ(B-c)=0.452±0.048(stat)±0.027(syst) ps. This is the first measurement of the B-c meson lifetime in a fully reconstructed hadronic channel, and it agrees with previous results and has comparable precision.

  11. Barrow Black Carbon Source and Impact Study Final Campaign Report

    SciTech Connect

    Barrett, Tate

    2014-07-01

    The goal of the Barrow Black Carbon Source and Impact campaign was to characterize the concentration and isotopic composition of carbonaceous atmospheric particulate matter (PM) at the Atmospheric Radiation Measurement (ARM) Climate Research Facility site in Barrow, Alaska. The carbonaceous component was characterized by measuring the organic and black carbon (OC and BC) components of the total PM. To facilitate complete characterization of the PM, filter-based collections were used, including a medium volume PM2.5 sampler and a high volume PM10 sampler. Thirty-eight fine PM fractions (PM2.5) and 49 coarse (PM10) PM fractions were collected at weekly and bi-monthly intervals. The PM2.5 sampler operated with minimal maintenance during the 12 month campaign. The PM10 sampler used for the Barrow Black Carbon Source and Impact (BBCSI) study used standard Tisch “hi-vol” motors that have a known lifetime of approximately 1 month under constant use; this necessitated monthly maintenance, and it is suggested that, for future deployment in the Arctic, the motors be upgraded to industrial blowers. The BBCSI sampling campaign successfully collected and archived 87 ambient atmospheric PM samples from Barrow, Alaska, from July 2012 to June 2013. Preliminary analysis of the OC and BC concentrations has been completed. This campaign confirmed known trends of high BC lasting from the winter through to spring haze periods and low BC concentrations in the summer. However, the annual OC concentrations had a very different seasonal pattern with the highest concentrations during the summer, lowest concentrations during the fall, and increased concentrations during the winter and spring (Figure 1).

  12. Word Pro - S8

    Energy Information Administration (EIA) (indexed site)

    U .S. Energy Information Administration / Monthly Energy Review October 2016 129 Table 8.1 Nuclear Energy Overview Total Operable Units a,b Net Summer Capacity of Operable Units b,c Nuclear Electricity Net Generation Nuclear Share of Electricity Net Generation Capacity Factor d Number Million Kilowatts Million Kilowatthours Percent 1957 Total .......................... 1 0.055 10 (s) NA 1960 Total .......................... 3 .411 518 .1 NA 1965 Total .......................... 13 .793 3,657 .3

  13. Simulating Black Carbon and Dust and their Radiative Forcing in Seasonal Snow: A Case Study over North China with Field Campaign Measurements

    SciTech Connect

    Zhao, Chun; Hu, Zhiyuan; Qian, Yun; Leung, Lai-Yung R.; Huang, J.; Huang, Maoyi; Jin, Jiming; Flanner, M. G.; Zhang, Rudong; Wang, Hailong; Yan, Huiping; Lu, Zifeng; Streets, D. G.

    2014-10-30

    A state-of-the-art regional model, WRF-Chem, is coupled with the SNICAR model that includes the sophisticated representation of snow metamorphism processes available for climate study. The coupled model is used to simulate the black carbon (BC) and dust concentrations and their radiative forcing in seasonal snow over North China in January-February of 2010, with extensive field measurements used to evaluate the model performance. In general, the model simulated spatial variability of BC and dust mass concentrations in the top snow layer (hereafter BCS and DSTS, respectively) are quantitatively or qualitatively consistent with observations. The model generally moderately underestimates BCS in the clean regions but significantly overestimates BCS in some polluted regions. Most model results fall into the uncertainty ranges of observations. The simulated BCS and DSTS are highest with >5000 ng g-1 and up to 5 mg g-1, respectively, over the source regions and reduce to <50 ng g-1 and <1 μg g-1, respectively, in the remote regions. BCS and DSTS introduce similar magnitude of radiative warming (~10 W m-2) in snowpack, which is comparable to the magnitude of surface radiative cooling due to BC and dust in the atmosphere. This study represents the first effort in using a regional modeling framework to simulate BC and dust and their direct radiative forcing in snow. Although a variety of observational datasets have been used to attribute model biases, some uncertainties in the results remain, which highlights the need for more observations, particularly concurrent measurements of atmospheric and snow aerosols and the deposition fluxes of aerosols, in future campaigns.

  14. Seminar Series | Photosynthetic Antenna Research Center

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Seminar Series Seminar Series Dr. Martin Warren Enhancing Bacterial Metabolism - from vitamin B12 biosynthesis to Bacterial Microcompartments Dr. Rienk Van Grondelle The Quantum Design of Photosynthesis Dr. Tristram Kidder Ancient Lessons for Modern Times: An Environmental History of the Yellow River, China, 5000-2000 BC Donald Ort Too Green? Dr. Terry Bricker Structural Interactions of the Extrinsic Proteins in Higher Plant Photosystem II Dr. David Tiede "Wiring Photosynthetic and Redox

  15. Seminar Series | Photosynthetic Antenna Research Center

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Seminar Series Seminar Series November 9, 2016 Dr. Martin Warren Enhancing Bacterial Metabolism - from vitamin B12 biosynthesis to Bacterial Microcompartments Read more about Dr. Martin Warren October 4, 2016 Dr. Rienk Van Grondelle The Quantum Design of Photosynthesis Read more about Dr. Rienk Van Grondelle November 12, 2015 Dr. Tristram Kidder Ancient Lessons for Modern Times: An Environmental History of the Yellow River, China, 5000-2000 BC Read more about Dr. Tristram Kidder November 11,

  16. 2013 DOE Bioenergy Technologies Office (BETO) Project Peer Review

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biochemical Feedstock Supply Interface Garold Gresham, INL Nick Nagle, NREL May 20, 2013 2 | Bioenergy Technologies Office eere.energy.gov Goals: Support Biochemical Conversion Pathway: "reducing the cost of converting lignocellulosic biomass to sugars and other fuels intermediates." 1 - Facilitate establishment of pathway(s) toward optimization and cost-reduction; 2 - Develop tools & models to evaluate feedstock costs & quality for BC conversion process (biological, chemical,

  17. Tuning a RANS k-e model for jet-in-crossflow simulations.

    SciTech Connect

    Lefantzi, Sophia; Ray, Jaideep; Arunajatesan, Srinivasan; DeChant, Lawrence Justin

    2013-09-01

    We develop a novel calibration approach to address the problem of predictive ke RANS simulations of jet-incrossflow. Our approach is based on the hypothesis that predictive ke parameters can be obtained by estimating them from a strongly vortical flow, specifically, flow over a square cylinder. In this study, we estimate three ke parameters, C%CE%BC, Ce2 and Ce1 by fitting 2D RANS simulations to experimental data. We use polynomial surrogates of 2D RANS for this purpose. We conduct an ensemble of 2D RANS runs using samples of (C%CE%BC;Ce2;Ce1) and regress Reynolds stresses to the samples using a simple polynomial. We then use this surrogate of the 2D RANS model to infer a joint distribution for the ke parameters by solving a Bayesian inverse problem, conditioned on the experimental data. The calibrated (C%CE%BC;Ce2;Ce1) distribution is used to seed an ensemble of 3D jet-in-crossflow simulations. We compare the ensemble's predictions of the flowfield, at two planes, to PIV measurements and estimate the predictive skill of the calibrated 3D RANS model. We also compare it against 3D RANS predictions using the nominal (uncalibrated) values of (C%CE%BC;Ce2;Ce1), and find that calibration delivers a significant improvement to the predictive skill of the 3D RANS model. We repeat the calibration using surrogate models based on kriging and find that the calibration, based on these more accurate models, is not much better that those obtained with simple polynomial surrogates. We discuss the reasons for this rather surprising outcome.

  18. One-Dimensional Nanostructures for Neutron Detection

    SciTech Connect

    Zhu, Yong; Eapen, Jacob; Hawari, Ayman

    2015-05-04

    This report consists of four parts in addition to a publication/presentation list. Part I is on electronic structure simulations on boron nitride (BN) and BCxN nanotubes using density function theory (DFT), Part II is on fabrication and characterization of nanowire sensors, Part III is on irradiation response of BN nanotubes using molecular dynamics (MD) simulations, and Part IV is on the in-situ transmission electron microscopy (TEM) study of irradiation response of BN nanotubes.

  19. CARES: Carbonaceous Aerosol and Radiative Effects Study Science Plan

    SciTech Connect

    Zaveri, RA; Shaw, WJ; Cziczo, DJ

    2010-05-27

    Carbonaceous aerosol components, which include black carbon (BC), urban primary organic aerosols (POA), biomass burning aerosols, and secondary organic aerosols (SOA) from both urban and biogenic precursors, have been previously shown to play a major role in the direct and indirect radiative forcing of climate. The primary objective of the CARES 2010 intensive field study is to investigate the evolution of carbonaceous aerosols of different types and their effects on optical and cloud formation properties.

  20. Efficiency Advocates' Ex Parte Communication with DOE on June 20, 2014 |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Communication with DOE on June 20, 2014 Efficiency Advocates' Ex Parte Communication with DOE on June 20, 2014 The attendees identified above met on June 20, 2014, to discuss DOE's efforts on setting energy efficiency standards for manufactured housing. (Docket No. EERE-2009-BT-BC-0021). Advocates Ex Parte Memo Manufactured Housing (72.15 KB) More Documents & Publications Efficiency Advocates' Ex Parte Communication Ex Parte Communication Memorandum AHRI/Advocate Ex

  1. Microsoft Word - Ex Parte Memo re Manufactured Housing

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    May 6, 2013 Re Ex Parte Communication On Wednesday May 1, 2013, a group of non-profit and state energy efficiency advocates met with representatives of the Department of Energy to discuss the efficiency standards for Manufactured Housing. See Advanced Notice of Proposed Rulemaking, Energy Efficiency Standards for Manufactured Housing, Docket No. EERE-2009-BT-BC-0021, 75 Fed. Reg. 7556 (Feb. 22, 2010). The efficiency advocates presented information on: a) manufactured homes production, percent of

  2. Using SA508/533 for the HTGR Vessel Material

    SciTech Connect

    Larry Demick

    2012-06-01

    This paper examines the influence of High Temperature Gas-cooled Reactor (HTGR) module power rating and normal operating temperatures on the use of SA508/533 material for the HTGR vessel system with emphasis on the calculated times at elevated temperatures approaching or exceeding ASME Code Service Limits (Levels B&C) to which the reactor pressure vessel could be exposed during postulated pressurized and depressurized conduction cooldown events over its design lifetime.

  3. Revised DOE Acquisition Guide Chapter 71.1 Headquarters Business Clearance

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Process | Department of Energy 71.1 Headquarters Business Clearance Process Revised DOE Acquisition Guide Chapter 71.1 Headquarters Business Clearance Process There was mention in the National Academy of Public Administration (NAPA) report titled "Managing at the Speed of Light - Improving Mission Support Performance" that Departmental procurement personnel don't understand the Business Clearance (BC) process. In an effort to address this issue, each Procurement Director (PD) and

  4. Join HERO

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Join HERO Sept. 29 to Oct. 6, 2017 Roundtrip Seattle! For more information contact Jim Carey at Cruise Holidays: 628-9555 jcarey@cruiseholidays.com HERO coordinator Dianne Whitten 943-4076 dianne_r_whitten@rl.gov Enjoy 7 nights aboard Royal Caribbean's Explorer of the Seas. Featuring Astoria, OR, Victoria, BC and 2 days in San Francisco! Convenient departure and return to Seattle. Reserve early, space is limited! Included: Shipboard accommodations, most meals & beverages, and most onboard

  5. SNP in TXNRD2 Associated With Radiation-Induced Fibrosis: A Study of Genetic Variation in Reactive Oxygen Species Metabolism and Signaling

    SciTech Connect

    Edvardsen, Hege; K. G. Jebsen Breast cancer centre, Institute for Clinical Medicine, University of Oslo, Oslo ; Landmark-Hyvik, Hege; K. G. Jebsen Breast cancer centre, Institute for Clinical Medicine, University of Oslo, Oslo ; Reinertsen, Kristin V.; Zhao, Xi; K. G. Jebsen Breast cancer centre, Institute for Clinical Medicine, University of Oslo, Oslo ; Grenaker-Alns, Grethe Irene; Nebdal, Daniel; Syvnen, Ann-Christine; Rdningen, Olaug; Alsner, Jan; Overgaard, Jens; Borresen-Dale, Anne-Lise; K. G. Jebsen Breast cancer centre, Institute for Clinical Medicine, University of Oslo, Oslo ; Foss, Sophie D.; National Resource Centre for Late Effects after Cancer Treatment, OUS Radiumhospitalet, Oslo ; Kristensen, Vessela N.; K. G. Jebsen Breast cancer centre, Institute for Clinical Medicine, University of Oslo, Oslo; Department of Clinical Molecular Biology , Division of Medicine, Ahus University Hospital

    2013-07-15

    Purpose: The aim of the study was to identify noninvasive markers of treatment-induced side effects. Reactive oxygen species (ROS) are generated after irradiation, and genetic variation in genes related to ROS metabolism might influence the level of radiation-induced adverse effects (AEs). Methods and Materials: 92 breast cancer (BC) survivors previously treated with hypofractionated radiation therapy were assessed for the AEs subcutaneous atrophy and fibrosis, costal fractures, lung fibrosis, pleural thickening, and telangiectasias (median follow-up time 17.1 years). Single-nucleotide polymorphisms (SNPs) in 203 genes were analyzed for association to AE grade. SNPs associated with subcutaneous fibrosis were validated in an independent BC survivor material (n=283). The influence of the studied genetic variation on messenger ribonucleic acid (mRNA) expression level of 18 genes previously associated with fibrosis was assessed in fibroblast cell lines from BC patients. Results: Subcutaneous fibrosis and atrophy had the highest correlation (r=0.76) of all assessed AEs. The nonsynonymous SNP rs1139793 in TXNRD2 was associated with grade of subcutaneous fibrosis, the reference T-allele being more prevalent in the group experiencing severe levels of fibrosis. This was confirmed in another sample cohort of 283 BC survivors, and rs1139793 was found significantly associated with mRNA expression level of TXNRD2 in blood. Genetic variation in 24 ROS-related genes, including EGFR, CENPE, APEX1, and GSTP1, was associated with mRNA expression of 14 genes previously linked to fibrosis (P?.005). Conclusion: Development of subcutaneous fibrosis can be associated with genetic variation in the mitochondrial enzyme TXNRD2, critically involved in removal of ROS, and maintenance of the intracellular redox balance.

  6. D O

    Office of Legacy Management (LM)

    D O E F 1325.8 . Isee) 0 3 fcmo U n ite d S ta tes G o v e r n m e n t D A T E : O C T 0 8 1 9 9 2 bc .22-I R E F L Y T O A l T N OF: E M - 4 2 1 ( W . A . W illiams, 9 0 3 - 8...

  7. Diversity & Inclusion Advisory Council | Argonne National Laboratory

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    African American/Black Club (AA/BC) promotes the richness and diversity of African American/Black cultures and provides professional networking opportunities for all Argonne employees. Hispanic Latino Club (HLC) promotes the richness and diversity of Hispanic/Latino cultures and provides professional networking opportunities for all Argonne employees. Spectrum is an employee group dedicated to building awareness and providing resources for the LGBTQA+ community in order to foster an environment

  8. Barrow Black Carbon Source and Impact Study Final Campaign Report

    SciTech Connect

    Barrett, Tate

    2014-07-01

    The goal of the Barrow Black Carbon Source and Impact (BBCSI) Study was to characterize the concentration and isotopic composition of carbonaceous atmospheric particulate matter (PM) at the Atmospheric Radiation Measurement site in Barrow, AK. The carbonaceous component was characterized via measurement of the organic and black carbon (OC and BC) components of the total PM. To facilitate complete characterization of the particulate matter, filter-based collections were used, including a medium volume PM2.5 sampler and a high volume PM10 sampler. Thirty-eight fine (PM2.5) and 49 coarse (PM10) particulate matter fractions were collected at weekly and bi-monthly intervals. The PM2.5 sampler operated with minimal maintenance during the 12 month campaign. The PM10 sampler used for the BBCSI used standard Tisch hi-vol motors which have a known lifetime of ~1 month under constant use; this necessitated monthly maintenance and it is suggested that the motors be upgraded to industrial blowers for future deployment in the Arctic. The BBCSI sampling campaign successfully collected and archived 87 ambient atmospheric particulate matter samples from Barrow, AK from July 2012 to June 2013. Preliminary analysis of the organic and black carbon concentrations has been completed. This campaign confirmed known trends of high BC lasting from the winter through to spring haze periods and low BC concentrations in the summer.

  9. Concomitant Microbial Generation of Palladium Nanoparticles and Hydrogen To Immobilize Chromate

    SciTech Connect

    Chidambaram, D.; Hennebel, T; Taghavi, S; Mast, J; Boon, N; Verstraete, W; Van Der Lelie, D; Fitts, J

    2010-01-01

    The catalytic properties of various metal nanoparticles have led to their use in environmental remediation. Our aim is to develop and apply an efficient bioremediation method based on in situ biosynthesis of bio-Pd nanoparticles and hydrogen. C. pasteurianum BC1 was used to reduce Pd(II) ions to form Pd nanoparticles (bio-Pd) that primarily precipitated on the cell wall and in the cytoplasm. C. pasteurianum BC1 cells, loaded with bio-Pd nanoparticle in the presence of glucose, were subsequently used to fermentatively produce hydrogen and to effectively catalyze the removal of soluble Cr(VI) via reductive transformation to insoluble Cr(III) species. Batch and aquifer microcosm experiments using C. pasteurianum BC1 cells loaded with bio-Pd showed efficient reductive Cr(VI) removal, while in control experiments with killed or viable but Pd-free bacterial cultures no reductive Cr(VI) removal was observed. Our results suggest a novel process where the in situ microbial production of hydrogen is directly coupled to the catalytic bio-Pd mediated reduction of chromate. This process offers significant advantages over the current groundwater treatment technologies that rely on introducing preformed catalytic nanoparticles into groundwater treatment zones and the costly addition of molecular hydrogen to above ground pump and treat systems.

  10. Strong sorption of native PAHs to pyrogenic and unburned carbonaceous geosorbents in sediments

    SciTech Connect

    Gerard Cornelissen; Gijs D. Breedveld; Stavros Kalaitzidis; Kimon Christanis; Anne Kibsgaard; Amy M.P. Oen

    2006-02-15

    It has recently been shown that the presence of carbonaceous geosorbents (CG, including black carbon (BC), unburned coal, and kerogen) can cause strong sorption of polycyclic aromatic hydrocarbons (PAHs) in sediments. The authors studied sorption of native PAHs in four Norwegian harbor sediments of which high fractions (21-56%) of the total organic carbon (TOC) consisted of CG carbon (CGC), as shown by organic petrography. PAH sorption coefficients were 1-2 orders of magnitude above predictions based on amorphous organic carbon partitioning alone. In recent studies, such strong sorption was attributed solely to BC sorption under the implicit assumption that sorption is linear for coal and kerogen. The most important result of the present study is that total sorption is better explained by considering all three nonlinearly sorbing CGC materials than by only considering BC. In addition, it was evaluated whether activated carbon (AC) amendments could be effective in reducing the freely dissolved porewater concentrations (C{sub W}) and thus the environmental risks of the PAHs in such strongly sorbing sediments. The results indicated that an addition of 2 weight % AC reduced the C{sub W} by factors of 21-153 for the four sediments (average values for all PAHs). It was shown that phenanthrene sorption to AC was, on average, reduced by a factor of 6 in sediment-AC mixtures compared to pure AC. 33 refs., 5 figs., 2 tabs.

  11. Demand forecasting and revenue requirements, with implications for consideration in British Columbia

    SciTech Connect

    Acton, J.P.

    1983-05-01

    This paper was filed as an exhibit on behalf of The Consumers' Association of Canada (B.C. Branch), The Federated Anti-Poverty Groups of B.C., The Sierra Club of Western Canada, and the B.C. Old Age Pensioners' Organization. It was subjected to cross-examination on October 29, 1982, during Phase I of the hearings. The Utilities Commission had designated Phase I for consideration of (1) demand, (2) assets in service, (3) revenue requirements excluding return, and (4) financing and capital requirements. This paper presents a general discussion of the elements of a rate structure and their relationship to the demand for electricity, a systematic review of some 50 empirical studies of the demand for electricity as a function of price and other factors by the three principal classes of customers, and a discussion of the notion of revenue requirements. The paper should be of interest to utility regulators, rate specialists, and forecasters for its review of demand models and to academics concerned with the study of energy demand.

  12. Laboratory Experiments and Instrument Development for the Study of Atmospheric Aerosols

    SciTech Connect

    Davidovits, Paul

    2011-12-10

    Soot particles are generated by incomplete combustion of fossil and biomass fuels. Through direct effects clear air aerosols containing black carbon (BC) such as soot aerosols, absorb incoming light heating the atmosphere, while most other aerosols scatter light and produce cooling. Even though BC represents only 1-2% of the total annual emissions of particulate mass to the atmosphere, it has been estimated that the direct radiative effect of BC is the second-most important contributor to global warming after absorption by CO2. Ongoing studies continue to underscore the climate forcing importance of black carbon. However, estimates of the radiative effects of black carbon on climate remain highly uncertain due to the complexity of particles containing black carbon. Quantitative measurement of BC is challenging because BC often occurs in highly non-spherical soot particles of complex morphology. Freshly emitted soot particles are typically fractal hydrophobic aggregates. The aggregates consist of black carbon spherules with diameters typically in the range of about 15-40 nm, and they are usually coated by adsorbed polyaromatic hydrocarbons (PAHs) produced during combustion. Diesel-generated soot particles are often emitted with an organic coating composed primarily of lubricating oil and unburned fuel, as well as well as PAH compounds. Sulfuric acid has also been detected in diesel and aircraft-emitted soot particles. In the course of aging, these particle coatings may be substantially altered by chemical reactions and/or the deposition of other materials. Such processes transform the optical and CCN properties of the soot aerosols in ways that are not yet well understood. Our work over the past seven years consisted of laboratory research, instrument development and characterization, and field studies with the central focus of improving our understanding of the black carbon aerosol climate impacts. During the sixth year as well as during this seventh year (no

  13. Control strategies for an expert system at a municipal solid waste incinerator

    SciTech Connect

    Dockrill, P.; Zheng, L.; Clements, B.; Ram, K.; Boatwright, K.

    1997-12-31

    Optimal burning of municipal waste is challenging due to the unknown variability of the garbage and the strict limits on the emission streams. Proper operation relies upon procedures that are, to a certain extent, based upon previous experience. Therefore this is an excellent application for an expert system since they are designed to initiate operator actions before actual operator intervention is necessary. This paper briefly discusses the rationale for developing an expert system at the Burnaby Incinerator, Burnaby, British Columbia and how it was implemented. The Burnaby Incinerator, owned by the Greater Vancouver Regional District and operated by Montenay, Inc., was a test location for an expert system jointly funded by Environment Canada and the Panel for Energy Research and Development and developed by the CANMET Energy Technology Centre. The expert system was designed to perform a number of functions: identification of boiler upsets due to fuel variations, prediction of stack emissions and control of lime injection for SO{sub 2} emissions. These particular functions were chosen to smooth the boiler operation and reduce the cost of plant operation. The expert system is a PC based system using both commercial and developed software. It incorporates rule based and model based techniques and neural network technology. The results of the expert system project are presented.

  14. Project Closeout Report Francium trapping facility at Triumf

    SciTech Connect

    Orozco, Luis A

    2014-09-30

    This is a report of the construction of a Francium Trapping Facility (FTF) at the Isotope Separator and Accelerator (ISAC) of TRIUMF in Vancouver, Canada, where the Francium Parity Non Conservation (FrPNC) international collaboration has its home. This facility will be used to study fundamental symmetries with high-resolution atomic spectroscopy. The primary scientific objective of the program is a measurement of the anapole moment of francium in a chain of isotopes by observing the parity violation induced by the weak interaction. The anapole moment of francium and associated signal are expected to be ten times larger than in cesium, the only element in which an anapole moment has been observed. The measurement will provide crucial information for better understanding weak hadronic interactions in the context of Quantum Chromodynamics (QCD). The methodology combines nuclear and particle physics techniques for the production of francium with precision measurements based on laser cooling and trapping and microwave spectroscopy. The program builds on an initial series of atomic spectroscopy measurements of the nuclear structure of francium, based on isotope shifts and hyperfine anomalies, before conducting the anapole moment measurements, these measurements performed during commissioning runs help understand the atomic and nuclear structure of Fr.

  15. Trends and challenges in global arms control regimes: Implications for the Mediterranean, North Africa, and the Middle East

    SciTech Connect

    Lehman, R.F. II

    1994-06-01

    In another sense, however, the nuclear age and ballistic missiles long ago created a much smaller world in which the distinctions between global and regional security have been lessened. In an age of weapons of mass destruction, any point on the earth can find itself suddenly at the center of world attention. This makes it all the more important that we understand all of the arms control tools available, including global approaches. In discussing global arms control regimes, I will focus primarily on those that are open to universal membership such as the Nuclear Nonproliferation Treaty (NPT) or which have global reach, such as certain export control and supplier regimes. It is important to remember, however, that certain regional, bilateral, and even unilateral arms control measures can have a global impact as well. One need only witness the impact of the Treaty on Conventional Forces in Europe (CFE). Despite its mere {open_quotes}Atlantic to the Urals{close_quotes} focus, the CFE treaty helped change the political and strategic calculations of the entire world. Likewise, the Conference on Security and Cooperation in Europe (CSCE), with its headquarters in Vienna, is centered on Europe but spreads from Vancouver to Vladivostok (or perhaps we should say from Amchitka to Kamchatka), circumnavigating much of the northern hemisphere when measured the long way around via North America. The political significance of its successes and failures outdistance CSCE`s geographical spread.

  16. Methanex, Hoechst Celanese dissolve methanol partnership

    SciTech Connect

    Morris, G.D.L.

    1993-03-31

    One of the many joint venture alliances recently announced in the petrochemical sector is ending in divorce. Hoechst Celanese Chemical (Dallas) and Methanex Corp. (Vancouver) are in the process of dissolving the partnership they had formed to restart Hoechst Celanese's methanol plant at Clear Lake, TX. Hoechst Celanese says it is actively seeking replacement partners and has several likely prospects, while Methanex is concentrating on its other ventures. Those include its just-completed acquisition of Fletcher Challenge's (Auckland, NZ) methanol business and a joint venture with American Cyanamid to convert an ammonia plant at Fortier, LA to methanol. Methanex will still be the world's largest producer of methanol. Officially, the negotiations between Methanex and Hoechst Celanese just broke down over the last month or so,' says Steve Yurich, operations manager for the Clear Lake plant. Market sources, however, say that Methanex found itself with too many irons in the fire' and pulled out before it ran into financial or perhaps even antitrust difficulties.

  17. Particulate matter emissions from combustion of wood in district heating applications

    SciTech Connect

    Ghafghazi, S.; Sowlati, T.; Sokhansanj, Shahabaddine; Bi, X.T.; Melin, Staffan

    2011-01-01

    The utilization of wood biomass to generate district heat and power in communities that have access to this energy source is increasing. In this paper the effect of wood fuel properties, combustion condition, and flue gas cleaning system on variation in the amount and formation of particles in the flue gas of typical district heating wood boilers are discussed based on the literature survey. Direct measurements of particulate matter (PM) emissions from wood boilers with district heating applications are reviewed and presented. Finally, recommendations are given regarding the selection of wood fuel, combustion system condition, and flue gas cleaning system in district heating systems in order to meet stringent air quality standards. It is concluded that utilization of high quality wood fuel, such as wood pellets produced from natural, uncontaminated stem wood, would generate the least PM emissions compared to other wood fuel types. Particulate matter emissions from grate burners equipped with electrostatic precipitators when using wood pellets can be well below stringent regulatory emission limit such as particulate emission limit of Metro Vancouver, Canada.

  18. A multicriteria approach to evaluate district heating system options

    SciTech Connect

    Ghafghazi, Saeed; Sowlati, T.; Sokhansanj, Shahabaddine; Melin, Staffan

    2009-07-01

    District energy systems, in which renewable energy sources may be utilized, are centralized systems to provide energy to residential and commercial buildings. The aim of this paper is to evaluate and rank energy sources available for a case of district heating system in Vancouver, Canada, based on multiple criteria and the view points of different stakeholders, and to show how communication would affect the ranking of alternatives. The available energy sources are natural gas, biomass (wood pellets), sewer heat, and geothermal heat. The evaluation criteria include GHG emissions, particulate matter emissions, maturity of technology, traffic load, and local source. In order to rank the energy options the PROMETHEE method is used. In this paper, two different scenarios were developed to indicate how the communication between the stakeholders would affect their preferences about criteria weights and would change the ranking of alternatives. The result of this study shows that without communication the best energy source for the considered district energy system is different for different stakeholders. While, addressing concerns through efficient communication would result in a general consensus. In this case, wood pellet is the best energy alternative for all the stakeholders.

  19. Belleville Hydroelectric Project: A {open_quotes}model{close_quotes} project

    SciTech Connect

    Hughes, B.R.; Gemperline, E.J.; Meier, P.E.

    1995-12-31

    With the development of hydropower stations at existing lock and dam structures, there is a need to develop a project layout that will provide efficient power generation with minimal impacts on the existing river conditions. Model studies have proven to be a cost effective method of ensuring that the most appropriate project layout is achieved prior to the large capital investment required for construction. Physical models provide a means of visualizing the overall project, including river flow patterns and sedimentation, and permit the acquisition of numerical data which can be used to aid in the refinement of the project design or to guide the regulatory bodies in assessing the potential impacts. As part of the proposed hydropower add-on at the existing Belleville Lock and Dam, a physical hydraulic model study was undertaken at Northwest Hydraulic Consultants laboratories in Vancouver, British Columbia to aid in the development of a project layout which would meet all project objectives. These objectives included refinement of the approach and tailrace channels to optimize the powerhouse performance and minimize the potential impacts on river navigation.

  20. Environmental audit, Bonneville Power Administration, lower Columbia area

    SciTech Connect

    Not Available

    1990-11-01

    This report documents the results of the US Department of Energy's (DOE's) Environmental Audit conducted by the DOE Headquarters Office of Environmental Audit within the Bonneville Power Administration's (BPA's) Lower Columbia Area. The BPA facilities included in the Audit are the Ross Complex in Vancouver, Washington; the substations of North Bonneville, North Bonneville Annex, Camas, and Longview within the state of Washington; and the Acton and Troutdale Substations within the state of Oregon. The independent Audit was conducted by a team of professionals from DOE and contractors. The purpose of the Audit is to provide the Secretary of Energy, Admiral James D. Watkins, Ret., with the status of environmental programs within BPA's Lower Columbia Area. The Environmental Audit team identified 25 findings dealing with the lack of conformance with federal and state laws and regulations and DOE Orders, and 7 findings in which BMPs were not attained. Although all findings require corrective action, none required cessation of operations or reflect situations that present an immediate risk to public health or the environment. The Audit team noted inadequacies in PCB management included storage, labeling, reporting, and spill control. The most significant causal factors for the findings include lack of policy implementation throughout the Lower Columbia Area, inadequate training of personnel charged with environmental protection, lack of standard operating procedures for many programs, lack of reviews and appraisals, and an inaccurate perception of low risk for environmental concerns.

  1. Historic Habitat Opportunities and Food-Web Linkages of Juvenile Salmon in the Columbia River Estuary and Their Implications for Managing River Flows and Restoring Estuarine Habitat, Physical Sciences Component, Progress Report.

    SciTech Connect

    Jay, David A.

    2009-08-03

    Long-term changes and fluctuations in river flow, water properties, tides, and sediment transport in the Columbia River and its estuary have had a profound effect on Columbia River salmonids and their habitat. Understanding the river-flow, temperature, tidal, and sediment-supply regimes of the Lower Columbia River (LCR) and how they interact with habitat is, therefore, critical to development of system management and restoration strategies. It is also useful to separate management and climate impacts on hydrologic properties and habitat. This contract, part of a larger project led by the National Oceanic and Atmospheric Administration (NOAA), consists of three work elements, one with five tasks. The first work element relates to reconstruction of historic conditions in a broad sense. The second and third elements consist, respectively, of participation in project-wide integration efforts, and reporting. This report focuses on the five tasks within the historic reconstruction work element. It in part satisfies the reporting requirement, and it forms the basis for our participation in the project integration effort. The first task consists of several topics related to historic changes in river stage and tide. Within this task, the chart datum levels of 14 historic bathymetric surveys completed before definition of Columbia River Datum (CRD) were related to CRD, to enable analysis of these surveys by other project scientists. We have also modeled tidal datums and properties (lower low water or LLW, higher high water or HHW, mean water level or MWL, and greater diurnal tidal range or GDTR) as a function of river flow and tidal range at Astoria. These calculations have been carried for 10 year intervals (1940-date) for 21 stations, though most stations have data for only a few time intervals. Longer-term analyses involve the records at Astoria (1925-date) and Vancouver (1902-date). Water levels for any given river flow have decreased substantially (0.3-1.8 m, depending

  2. Formaldehyde measurements in five new unoccupied energy efficient manufactured homes

    SciTech Connect

    Parker, G.B.; Onisko, S.A.

    1986-11-01

    Week-long integrated formaldehyde levels were measured over eight weeks in five new unoccupied energy efficient manufactured homes. These homes were constructed to the specifications set forth in the Model Conservation Standards (MCS) established by the Northwest Power Planning Council for site-built homes. The MCS standards exceed the Housing and Urban Development's (HUD) standards that currently apply to manufactured homes nationwide. Two of the homes were located at Richland, Washington, and three homes were located at Vancouver, Washington. Among other features of the MCS, the homes are equipped with air-to-air heat exchangers (AAHX) to supply additional fresh air ventilation. The first four weeks of testing were conducted with the AAHX off and the second four-week measurement period was conducted with the AAHX continuously on the HI setting. Formaldehyde levels ranged from 0.047 ppM the fifth week of the testing in a double wide home (with the AAHX turned on) to 0.164 ppM in the single wide home in the first week of measurements with the AAHX off. At no time did the formaldehyde levels exceed 0.4 ppM, the HUD targeted indoor level based on HUD codes for formaldehyde emissions from plywood and particle board building materials used in the homes. There was no strong correlation between formaldehyde levels and the measured air exchange rate. 9 refs., 2 figs., 3 tabs.

  3. Characterization of Ambient Aerosols in Mexico City during the MCMA-2003 Campaign with Aerosol Mass Spectrometry. Results from the CENICA Supersite

    SciTech Connect

    Salcedo, D.; Onasch, Timothy B.; Dzepina, K.; Canagaratna, M. R.; Zhang, Q.; Huffman, A. J.; DeCarlo, Peter; Jayne, J. T.; Mortimer, P.; Worsnop, Douglas R.; Kolb, C. E.; Johnson, Kirsten S.; Zuberi, Bilal M.; Marr, L.; Volkamer, Rainer M.; Molina, Luisa; Molina, Mario J.; Cardenas, B.; Bernabe, R.; Marquez, C.; Gaffney, Jeffrey S.; Marley, Nancy A.; Laskin, Alexander; Shutthanandan, V.; Xie, YuLong; Brune, W. H.; Lesher, R.; Shirley, T.; Jiminez, J. L.

    2006-03-24

    An Aerodyne Aerosol Mass Spectrometer (AMS) was deployed at the CENICA Supersite, while another was deployed in the Aerodyne Mobile Laboratory (AML) during the Mexico City Metropolitan Area field study (MCMA-2003) from March 29-May 4, 2003 to investigate particle concentrations, sources, and processes. This is the first of a series of papers reporting the AMS results from this campaign. The AMS provides real time information on mass concentration and composition of the non-refractory species in particulate matter less than 1 ?m (NR PM1) with high time and size resolution. For the first time, we report field results from a beam width probe, which was used to study the shape and mixing state of the particles and to quantify potential losses of irregular particles due to beam broadening inside the AMS. Data from this probe show that no significant amount of irregular particles was lost due to excessive beam broadening. A comparison of the CENICA and AML AMSs measurements is presented, being the first published intercomparison between two quadrupole AMSs. The speciation, and mass concentrations reported by the two AMSs compared well. In order to account for the refractory material in the aerosol, we also present measurements of Black Carbon (BC) using an aethalometer and an estimate of the aerosol soil component obtained from PIXE analysis of filters. Comparisons of (AMS + BC + soil) mass concentration with other collocated particle instruments (a LASAIR Optical Particle Counter, a Tapered Element Oscillating Microbalance (TEOM) and a DustTrack Aerosol Monitor) are also presented. The comparisons show that the (AMS + BC + soil) mass concentration during MCMC-2003 is a good approximation to the total PM??? mass concentration.

  4. A New Approach to Modeling Aerosol Effects on East Asian Climate: Parametric Uncertainties Associated with Emissions, Cloud Microphysics and their Interactions

    SciTech Connect

    Yan, Huiping; Qian, Yun; Zhao, Chun; Wang, Hailong; Wang, Minghuai; Yang, Ben; Liu, Xiaohong; Fu, Qiang

    2015-09-16

    In this study, we adopt a parametric sensitivity analysis framework that integrates the quasi-Monte Carlo parameter sampling approach and a surrogate model to examine aerosol effects on the East Asian Monsoon climate simulated in the Community Atmosphere Model (CAM5). A total number of 256 CAM5 simulations are conducted to quantify the model responses to the uncertain parameters associated with cloud microphysics parameterizations and aerosol (e.g., sulfate, black carbon (BC), and dust) emission factors and their interactions. Results show that the interaction terms among parameters are important for quantifying the sensitivity of fields of interest, especially precipitation, to the parameters. The relative importance of cloud-microphysics parameters and emission factors (strength) depends on evaluation metrics or the model fields we focused on, and the presence of uncertainty in cloud microphysics imposes an additional challenge in quantifying the impact of aerosols on cloud and climate. Due to their different optical and microphysical properties and spatial distributions, sulfate, BC, and dust aerosols have very different impacts on East Asian Monsoon through aerosol-cloud-radiation interactions. The climatic effects of aerosol do not always have a monotonic response to the change of emission factors. The spatial patterns of both sign and magnitude of aerosol-induced changes in radiative fluxes, cloud, and precipitation could be different, depending on the aerosol types, when parameters are sampled in different ranges of values. We also identify the different cloud microphysical parameters that show the most significant impact on climatic effect induced by sulfate, BC and dust, respectively, in East Asia.

  5. A multi-model assessment of pollution transport to the Arctic

    SciTech Connect

    Shindell, D T; Chin, M; Dentener, F; Doherty, R M; Faluvegi, G; Fiore, A M; Hess, P; Koch, D M; MacKenzie, I A; Sanderson, M G; Schultz, M G; Schulz, M; Stevenson, D S; Teich, H; Textor, C; Wild, O; Bergmann, D J; Bey, I; Bian, H; Cuvelier, C; Duncan, B N; Folberth, G; Horowitz, L W; Jonson, J; Kaminski, J W; Marmer, E; Park, R; Pringle, K J; Schroeder, S; Szopa, S; Takemura, T; Zeng, G; Keating, T J; Zuber, A

    2008-03-13

    We examine the response of Arctic gas and aerosol concentrations to perturbations in pollutant emissions from Europe, East and South Asia, and North America using results from a coordinated model intercomparison. These sensitivities to regional emissions (mixing ratio change per unit emission) vary widely across models and species. Intermodel differences are systematic, however, so that the relative importance of different regions is robust. North America contributes the most to Arctic ozone pollution. For aerosols and CO, European emissions dominate at the Arctic surface but East Asian emissions become progressively more important with altitude, and are dominant in the upper troposphere. Sensitivities show strong seasonality: surface sensitivities typically maximize during boreal winter for European and during spring for East Asian and North American emissions. Mid-tropospheric sensitivities, however, nearly always maximize during spring or summer for all regions. Deposition of black carbon (BC) onto Greenland is most sensitive to North American emissions. North America and Europe each contribute {approx}40% of total BC deposition to Greenland, with {approx}20% from East Asia. Elsewhere in the Arctic, both sensitivity and total BC deposition are dominated by European emissions. Model diversity for aerosols is especially large, resulting primarily from differences in aerosol physical and chemical processing (including removal). Comparison of modeled aerosol concentrations with observations indicates problems in the models, and perhaps, interpretation of the measurements. For gas phase pollutants such as CO and O{sub 3}, which are relatively well-simulated, the processes contributing most to uncertainties depend on the source region and altitude examined. Uncertainties in the Arctic surface CO response to emissions perturbations are dominated by emissions for East Asian sources, while uncertainties in transport, emissions, and oxidation are comparable for European

  6. WRF-Chem Simulations of Aerosols and Anthropogenic Aerosol Radiative Forcing in East Asia

    SciTech Connect

    Gao, Yi; Zhao, Chun; Liu, Xiaohong; Zhang, Meigen; Leung, Lai-Yung R.

    2014-08-01

    This study aims to provide a first comprehensive evaluation of WRF-Chem for modeling aerosols and anthropogenic aerosol radiative forcing (RF) over East Asia. Several numerical experiments were conducted from November 2007 to December 2008. Comparison between model results and observations shows that the model can generally reproduce the observed spatial distributions of aerosol concentration, aerosol optical depth (AOD) and single scattering albedo (SSA) from measurements at different sites, including the relatively higher aerosol concentration and AOD over East China and the relatively lower AOD over Southeast Asia, Korean, and Japan. The model also depicts the seasonal variation and transport of pollutions over East Asia. Particulate matter of 10 um or less in the aerodynamic diameter (PM10), black carbon (BC), sulfate (SO42-), nitrate (NO3-) and ammonium (NH4+) concentrations are higher in spring than other seasons in Japan due to the pollutant transport from polluted area of East Asia. AOD is high over Southwest and Central China in winter, spring and autumn and over North China in summer while is low over South China in summer due to monsoon precipitation. SSA is lowest in winter and highest in summer. The model also captures the dust events at the Zhangye site in the semi-arid region of China. Anthropogenic aerosol RF is estimated to range from -5 to -20 W m-2 over land and -20 to -40 W m-2 over ocean at the top of atmosphere (TOA), 5 to 30 W m-2 in the atmosphere (ATM) and -15 to -40 W m-2 at the bottom (BOT). The warming effect of anthropogenic aerosol in ATM results from BC aerosol while the negative aerosol RF at TOA is caused by scattering aerosols such as SO4 2-, NO3 - and NH4+. Positive BC RF at TOA compensates 40~50% of the TOA cooling associated with anthropogenic aerosol.

  7. Subsurface Flow and Contaminant Transport

    Energy Science and Technology Software Center

    2000-09-19

    FACT is a transient three-dimensional, finite element code for simulating isothermal groundwater flow, moisture movement, and solute transport in variably and/or fully saturated subsurface porous media. Both single and dual-domain transport formulations are available. Transport mechanisms considered include advection, hydrodynamic dispersion, linear adsorption, mobile/immobile mass transfer and first-order degradation. A wide range of acquifier conditions and remediation systems commonly encountered in the field can be simulated. Notable boundary condition (BC) options include, a combined rechargemore » and drain BC for simulating recirculation wells, and a head dependent well BC that computes flow based on specified drawdown. The code is designed to handle highly heterogenous, multi-layer, acquifer systems in a numerically efficient manner. Subsurface structure is represented with vertically distorted rectangular brick elements in a Cartesian system. The groundwater flow equation is approximated using the Bubnov-Galerkin finite element method in conjunction with an efficient symmetric Preconditioned Conjugate Gradient (PCG) ICCG matrix solver. The solute transport equation is approximated using an upstream weighted residual finite element method designed to alleviate numerical oscillation. An efficient asymmetric PCG (ORTHOMIN) matrix solver is employed for transport. For both the flow and transport equations, element matrices are computed from either influence coefficient formulas for speed, or two point Gauss-Legendre quadrature for accuracy. Non-linear flow problems can be solved using either Newton-Ralphson linearization or Picard iteration, with under-relaxation formulas to further enhance convergence. Dynamic memory allocation is implemented using Fortran 90 constructs. FACT coding is clean and modular.« less

  8. Negative feedback regulation of Homer 1a on norepinephrine-dependent cardiac hypertrophy

    SciTech Connect

    Chiarello, Carmelina; Bortoloso, Elena; Carpi, Andrea; Furlan, Sandra; Volpe, Pompeo

    2013-07-15

    Homers are scaffolding proteins that modulate diverse cell functions being able to assemble signalling complexes. In this study, the presence, sub-cellular distribution and function of Homer 1 was investigated. Homer 1a and Homer 1b/c are constitutively expressed in cardiac muscle of both mouse and rat and in HL-1 cells, a cardiac cell line. As judged by confocal immunofluorescence microscopy, Homer 1a displays sarcomeric and peri-nuclear localization. In cardiomyocytes and cultured HL-1 cells, the hypertrophic agonist norepinephrine (NE) induces α{sub 1}-adrenergic specific Homer 1a over-expression, with a two-to-three-fold increase within 1 h, and no up-regulation of Homer 1b/c, as judged by Western blot and qPCR. In HL-1 cells, plasmid-driven over-expression of Homer 1a partially antagonizes activation of ERK phosphorylation and ANF up-regulation, two well-established, early markers of hypertrophy. At the morphometric level, NE-induced increase of cell size is likewise and partially counteracted by exogenous Homer 1a. Under the same experimental conditions, Homer 1b/c does not have any effect on ANF up-regulation nor on cell hypertrophy. Thus, Homer 1a up-regulation is associated to early stages of cardiac hypertrophy and appears to play a negative feedback regulation on molecular transducers of hypertrophy. -- Highlights: • Homer 1a is constitutively expressed in cardiac tissue. • In HL-1 cells, norepinephrine activates signaling pathways leading to hypertrophy. • Homer 1a up-regulation is an early event of norepinephrine-induced hypertrophy. • Homer 1a plays a negative feedback regulation modulating pathological hypertrophy. • Over-expression of Homer 1a per se does not induce hypertrophy.

  9. Crystal Structure of the alpha6beta6 Holoenzyme of propionyl-coenzyme A Carboxylase

    SciTech Connect

    Huang, C.; Sadre-Bazzaz, K; Shen, Y; Deng, B; Zhou, Z; Tong, L

    2010-01-01

    Propionyl-coenzyme A carboxylase (PCC), a mitochondrial biotin-dependent enzyme, is essential for the catabolism of the amino acids Thr, Val, Ile and Met, cholesterol and fatty acids with an odd number of carbon atoms. Deficiencies in PCC activity in humans are linked to the disease propionic acidaemia, an autosomal recessive disorder that can be fatal in infants. The holoenzyme of PCC is an {alpha}{sub 6}{beta}{sub 6} dodecamer, with a molecular mass of 750 kDa. The {alpha}-subunit contains the biotin carboxylase (BC) and biotin carboxyl carrier protein (BCCP) domains, whereas the {beta}-subunit supplies the carboxyltransferase (CT) activity. Here we report the crystal structure at 3.2-{angstrom} resolution of a bacterial PCC {alpha}{sub 6}{beta}{sub 6} holoenzyme as well as cryo-electron microscopy (cryo-EM) reconstruction at 15-{angstrom} resolution demonstrating a similar structure for human PCC. The structure defines the overall architecture of PCC and reveals unexpectedly that the {alpha}-subunits are arranged as monomers in the holoenzyme, decorating a central {beta}{sub 6} hexamer. A hitherto unrecognized domain in the {alpha}-subunit, formed by residues between the BC and BCCP domains, is crucial for interactions with the {beta}-subunit. We have named it the BT domain. The structure reveals for the first time the relative positions of the BC and CT active sites in the holoenzyme. They are separated by approximately 55 {angstrom}, indicating that the entire BCCP domain must translocate during catalysis. The BCCP domain is located in the active site of the {beta}-subunit in the current structure, providing insight for its involvement in the CT reaction. The structural information establishes a molecular basis for understanding the large collection of disease-causing mutations in PCC and is relevant for the holoenzymes of other biotin-dependent carboxylases, including 3-methylcrotonyl-CoA carboxylase (MCC) and eukaryotic acetyl-CoA carboxylase (ACC).

  10. ARM - Instrument - aeth

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    govInstrumentsaeth Documentation AETH : Handbook ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Aethalometer (AETH) Instrument Categories Aerosols Picture of the Aerosol Observing System The aethalometer is an instrument that provides a real-time readout of the concentration of "black" or "elemental" carbon aerosol particles (BC or E) in an air stream. It is a self-contained

  11. ARM - Field Campaign - Black Carbon at the Mt. Bachelor Observatory

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    govCampaignsBlack Carbon at the Mt. Bachelor Observatory Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Black Carbon at the Mt. Bachelor Observatory 2016.06.15 - 2016.10.01 Lead Scientist : Daniel Jaffe Abstract Black carbon (BC) is a key component in the earth system and a significant climate forcing agent. Observations at remote sites and in free-tropospheric air are extremely sparse. We propose to use one of the ARM SP2

  12. Fact Sheet

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Fact Sheet 300 Area 100-B,C 100-KW & KE 100-N 100-D & DR 100-H 100-F 400 Area (FFTF) 200 West Area 200 East Area In May 2005 the US DOE assembled and reviewed historical records related to the 216-U-12 crib. They also located and interviewed a process engineer who worked in the UO3 building during 1987. The interview and historical records (engineering log books, operations log books, official correspondence, a plant operating procedure, a temporary work procedure, and a work plan)

  13. Word Pro - S4

    Energy Information Administration (EIA) (indexed site)

    6 U.S. Energy Information Administration / Monthly Energy Review October 2016 Table 4.4 Natural Gas in Underground Storage (Volumes in Billion Cubic Feet) Natural Gas in Underground Storage, End of Period Change in Working Gas From Same Period Previous Year Storage Activity Base Gas Working Gas Total a Volume Percent Withdrawals Injections Net b,c 1950 Total .................... NA NA NA NA NA 175 230 -54 1955 Total .................... 863 505 1,368 40 8.7 437 505 -68 1960 Total

  14. Microsoft PowerPoint - Dirac Materials QDM Mar 2015 short

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Dirac Materials A.V. Balatsky *New class of materials *What is the definition of Dirac Materials? *Similarities and differences between d-wave superconductors, Graphene and Topological Insulators: All are Dirac materials with some common features *Imaging of k and r space *Local electronics and spins in graphene and TI *Gap or no gap in TI? J. X. Zhu, I. Martin, M. Salkola, T. Das, - Los Alamos D. Abergel, A. Black-Schaffer Nordita H. Dahal - BC T. Wehling, A. Lichtenstein, K. Scharnberg, R.

  15. Microsoft PowerPoint - Overview of 200 Areas.pptx

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Hanford's 200 Areas Ken Niles, Assistant Director Oregon Department of Energy Central Plateau Hanford Central Plateau 200 West & East Areas 200 West 200 East 200 West & East Areas 200 West 200 East WTP ERDF US Ecology 200 BC Cribs "Adjacent" Areas Tank Farms 200 West T-TX-TY S-SX-SY U B-BX-BY A-AX-AY-AZ AN-AP-AW C 200 East 18 Tank Farms in 5 Waste Management Areas Tanks Canyons T-Plant B-Plant PUREX U-Plant REDOX Canyons Other Facilities/Waste Streams PFP PUREX Tunnels WESF

  16. Searching

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Searching for Dark Matter Searches with MiniBooNE Presented to the FNAL PAC Dec 16, 2013 The MiniBooNE Collaboration R. Dharmapalan, & I. Stancu University of Alabama, Tuscaloosa, AL 35487 R. A. Johnson, & D.A. Wickremasinghe University of Cincinnati, Cincinnati, OH 45221 R. Carr, G. Karagiorgi, & M. H. Shaevitz Columbia University; New York, NY 10027 B.C. Brown, F.G. Garcia , R. Ford, T. Kobilarcik, W. Marsh, C. D. Moore, D. Perevalov, & W. Wester Fermi National Accelerator

  17. Hr. Andrew Wallo The Aerospace Corporation

    Office of Legacy Management (LM)

    Department of Energy Washington, b.C. 20545 OCT 28 1985 // && ' Q Hr. Andrew Wallo The Aerospace Corporation Suite 4000 955 L'Enfant Plaza, S.W. Washington, D.C. 20024 Dear Andy: The comTIents and authority decision from the following sites are set out 2cL.f I below. No additional cments are included; therefore, a careful editoria review of these documents should be made when the documents are finalized. t 1. Watertown Arsenal, Watertown, HA NY.4 Although building 421 was used for AEC

  18. River and Plateau Committee

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    December 2011) Page 1 Area RAP Committee Area of Interest Issue Manager(s) (*denotes lead) Other interested committee members Focus/Product For FY2012 Framing Questions/Issues (Articulated by Issue Managers) Cross- cutting River Corridor 100 & 300 Areas * 100 B/C Area * 100 K Area * 100 N Area * 100 D & H Areas * 100 F Area * 300 Area Shelley Cimon Dale Engstrom* Liz Mattson Jean Vanni Gerry Pollet Bob Suyama Wade Riggsbee 6 RODs RI/FS and Proposed Plans to be issued between now &

  19. Carbon Dioxide Information Analysis Center and World Data Center-A for atomspheric trace gases: Catalog of data bases and reports

    SciTech Connect

    Burtis, M.D.

    1995-04-01

    This document provides information about the many reports and other materials made available by the US Department of Energy`s Global Change Research Program (GCRP). Section A provides information about the activities, scope, and direction of the GCRP; Sections B,C, D, and E contain information about research that has been sponsered by GCRP; Sections F and G contains information about the numeric data packages and computer model pa kages the have been compiled by the GCRP; Section H describes reports about research dealing with the responses of vegetation to carbon dioxide; and Section I conatins reports from various workshops, symposia, and reviews.

  20. Photoproduction of B{sub c} mesons

    SciTech Connect

    Berezhnoy, A.V.; Likhoded, A.K.; Shevlyagin, M.V.

    1995-10-01

    The cross section for the process {gamma}{gamma} {yields} B{sub c}(B{sub c}{sup *}){bar b}c is calculated. It is shown numerically that the fragmentation mechanism of B{sub c} production is not realized at any energies and that, near the threshold, the production of the pseudoscalar state is strongly suppressed in relation to the production of the vector state. A method is used in which the direct calculation of the amplitudes of the corresponding subprocesses by means of a FORTRAN program is followed by numerical Monte Carlo integration over the phase space. 10 refs., 7 figs.

  1. simulators | netl.doe.gov

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    simulators DOE/BC-89/3/SP. Handbook for Personal Computer Version of BOAST II: A Three- Dimensional, Three-Phase Black Oil Applied Simulation Tool. Bartlesville Project Office. January 1989. 82 pp. NTIS Order No. DE89000725. FORTRAN source code and executable program. Min. Req.: IBM PC/AT, PS-2, or compatible computer with 640 Kbytes of memory. Download 464 KB Manual 75 KB Manual 404 KB Reference paper (1033-3,v1) by Fanchi, et al. Manual 83 KB Reference paper (1033-3,v2) by Fanchi, et al. BOAST

  2. Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    GCPCC's collaboration and publication policy Beamline acknowledgement Publication List Please contact us when you have a publication resulting from work done at the GCPCC PX beamline. Miller MD, Phillips GN Jr., White MA, Fox RO, Craft BC III The development of the GCPCC Protein Crystallography Beamline at CAMD. Application of Accelerators in Research and Industry -- Sixteenth Int'l Conf., J.L. Duggan and I.L. Morgan eds., 734-737 (2001). {PDF} Qiu C, Tarrant MK, Choi SH, Sathyamurthy A, Bose R,

  3. Evaluation of the carbon content of aerosols from the burn- ing of biomass in the Brazilian Amazon using thermal, op- tical and thermal-optical analysis methods

    SciTech Connect

    Soto-Garcia, Lydia L.; Andreae, Meinrat O.; Andreae, Tracey W.; taxo, Paulo Ar-; Maenhaut, Willy; Kirchstetter, Thomas; Novakov, T.; Chow, Judith C.; Mayol-Bracero, Olga L.

    2011-06-03

    Aerosol samples were collected at a pasture site in the Amazon Basin as part of the project LBA-SMOCC-2002 (Large-Scale Biosphere-Atmosphere Experiment in Amazonia - Smoke Aerosols, Clouds, Rainfall and Climate: Aerosols from Biomass Burning Perturb Global and Regional Climate). Sampling was conducted during the late dry season, when the aerosol composition was dominated by biomass burning emissions, especially in the submicron fraction. A 13-stage Dekati low-pressure impactor (DLPI) was used to collect particles with nominal aerodynamic diameters (D{sub p}) ranging from 0.03 to 0.10 m. Gravimetric analyses of the DLPI substrates and filters were performed to obtain aerosol mass concentrations. The concentrations of total, apparent elemental, and organic carbon (TC, EC{sub a}, and OC) were determined using thermal and thermal-optical analysis (TOA) methods. A light transmission method (LTM) was used to determine the concentration of equivalent black carbon (BC{sub e}) or the absorbing fraction at 880 nm for the size-resolved samples. During the dry period, due to the pervasive presence of fires in the region upwind of the sampling site, concentrations of fine aerosols (D{sub p} < 2.5 {mu}m: average 59.8 {mu}g m{sup -3}) were higher than coarse aerosols (D{sub p} > 2.5 {mu}m: 4.1 {mu}g m{sup -3}). Carbonaceous matter, estimated as the sum of the particulate organic matter (i.e., OC x 1.8) plus BC{sub e}, comprised more than 90% to the total aerosol mass. Concentrations of EC{sub a} (estimated by thermal analysis with a correction for charring) and BCe (estimated by LTM) averaged 5.2 {+-} 1.3 and 3.1 {+-} 0.8 {mu}g m{sup -3}, respectively. The determination of EC was improved by extracting water-soluble organic material from the samples, which reduced the average light absorption {angstrom} exponent of particles in the size range of 0.1 to 1.0 {mu}m from > 2.0 to approximately 1.2. The size-resolved BC{sub e} measured by the LTM showed a clear maximum between 0.4 and

  4. Microsoft Word - WIPP Update 5_23-14.doc

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    "##$%#&'()*$+,-$./0$.123$ 4565789-$85,:$;<78=7>5?$=7@5?8=A,8=<7$=7$#,75B$C$ !"#$"%&'()*$+"*,-..*$"'/*"0$"%"&*122/*3*24*.'0"5*3*$2*26$'70*'&&7$720'5*87&"2*422$'9"*'0&* :+2$29%':+#*24*$+"*:';<*24*&%=/#*$+'$*70;5=&"#*$+"*6%"';+"&*&%=/*$+'$*:2$"0$7'55(*;20$%76=$"&*$2*$+"*

  5. Signature-Dependent Electromagnetic Transition Rates in the {pi}h{sub 11/2} Rotational Sequence of {sub 73}{sup 167}Ta

    SciTech Connect

    R. Chapman; K.-M. Spohr; M.B. Smith; R.A. Bark; G.J. Campbell; G.B. Hagemann; N. Keeley; D.J. Middleton; H. Ryde; P.O. Tjom

    1999-12-31

    Excited states in {sup 167}Ta, populated in the {sup 141}Pr({sup 30}Si, 4n){sup 167}Ta reaction, have been studied using the NORDBALL Ge detector array. For the {pi}h{sub 11/2}[514]{sub 2}{sup 9}{sup -} decay sequence, strong signature-dependent effects in the transition quadrupole moment ratio, Q{sub 1}(I {yields} I - 1)/Q{sub 2}(I {yields} I - 2), have been observed over the spin range {sub 2}{sup 21}{<=}I{<=}{sub 2}{sup 39} which encompasses a BC neutron alignment. This is interpreted as strong evidence for departure from axial symmetry.

  6. Signature-dependent electromagnetic transition rates in the {pi}h{sub 11/2} rotational sequence of {sub 73}{sup 167}Ta

    SciTech Connect

    Chapman, R.; Spohr, K.-M.; Smith, M. B.; Campbell, G. J.; Middleton, D. J.; Bark, R. A.; Ryde, H.; Hagemann, G. B.; Keeley, N.; Tjoem, P. O.

    1999-11-16

    Excited states in {sup 167}Ta, populated in the {sup 141}Pr({sup 30}Si,4n){sup 167}Ta reaction, have been studied using the NORDBALL Ge detector array. For the {pi}h{sub 11/2}[514]9/2{sup -} decay sequence, strong signature-dependent effects in the transition quadrupole moment ratio, Q{sub 1}(I{yields}I-1)/Q{sub 2}(I{yields}I-2), have been observed over the spin range 21/2{<=}I{<=}39/2 which encompasses a BC neutron alignment. This is interpreted as strong evidence for departure from axial symmetry.

  7. Emission Regulations Reduced Impact of Climate Change in CA

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Emission Regulations Reduced Impact of Climate Change in CA Emission Regulations Reduced Impact of Climate Change in CA Study shows clean diesel programs slashed black carbon, a powerful short-term contributor to global warming June 13, 2013 Jon Weiner 510-486-4014 jrweiner@lbl.gov CA-BC-graphic.jpg Sacramento - Reductions in emissions of black carbon since the late 1980s, mostly from diesel engines as a result of air quality programs, have resulted in a measurable reduction of concentrations of

  8. Tri-Party Agreement Agencies - Public involvement calendar - fiscal year 2015

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    November 2014 December 2014 January 2015 February 2015 March 2015 April 2015 Federal Holidays November 11 November 27 December 25 January 1 January 19 February 16 Hanford Advisory Board (HAB) http://www.hanford.gov/page.cfm/hab November 5-6 Richland Red Lion February 4-5 April 8-9 HAB Committee Weeks http://www.hanford.gov/?page=455 River and Plateau (RAP) Health, Safety and Environmental Protection (HSEP) Tank Waste (TW) Public Involvement and Communications (PIC) Budgets and Contracts (BC)

  9. U.S. Department of Energy - Washington State Department of Ecology - U.S. Environmental Protection Agency

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Washington State Department of Ecology - U.S. Environmental Protection Agency 300 Area 100-B,C 100-KW & KE 100-N 100-D & DR 100-H 100-F 400 Area (FFTF) 200 West Area 200 East Area Changes Proposed to the Schedule for Cleaning Up Hanford's Plutonium Finishing Plant U.S. Department of Energy * U.S. Environmental Protection Agency * Washington State Department of Ecology Fact Sheet of its buildings over the next 14 years. There are 15 additional actions being proposed. Some of these actions

  10. BIGHORN SHEEP: SUPPLEMENTAL ANALYSIS TO THE FOREST PLAN ENVIRONMENTAL IMPACT STATEMENT„INTERDISCIPLINARY TEAM MEETING

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    8/6/13 Page 1 of 2 RIVER AND PLATEAU COMMITTEE - 3 MONTH WORK PLAN (SUBJECT TO REVISION) September Committee meeting placeholder: Tuesday, September 10 Committee call placeholder: Tuesday, September 17 @ 1:30 p.m. * Draft Work Plan for the BC Cribs WA-1 RI/FS * Update on 618-10 Documented Safety Analysis; update on VPU remediation * Update on drums from ERDF (TRU?) * Update on K-Reactor boreholes * Advice responses? * Committee Business --HSEP agenda, joint with RAP: Emergency Preparedness Drill

  11. Commitment to Public Involvement

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Create a Sustainable Future » Commitment to Public Involvement Commitment to Public Involvement LANL is committed to our neighbors August 1, 2013 Lab Director McMillan talks with Lab historian Ellen McGhee during Lab tour Lab Director McMillan talks with Lab historian Ellen McGhee during Lab tour RELATED IMAGES http://farm4.staticflickr.com/3815/9442115459_390e5bc841_t.jpg Enlarge http://farm8.staticflickr.com/7111/7650961650_ed1571174f_t.jpg Enlarge

  12. Preparation and uses of amorphous boron carbide coated substrates

    DOEpatents

    Riley, R.E.; Newkirk, L.R.; Valencia, F.A.; Wallace, T.C.

    1979-12-05

    Cloth is coated at a temperature below about 1000/sup 0/C with amorphous boron-carbon deposits in a process which provides a substantially uniform coating on all the filaments making up each yarn fiber bundle of the cloth. The coated cloths can be used in the as-deposited condition for example as wear surfaces where high hardness values are needed; or multiple layers of coated cloths can be hot-pressed to form billets useful for example in fusion reactor wall armor. Also provided is a method of controlling the atom ratio of B:C of boron-carbon deposits onto any of a variety of substrates, including cloths.

  13. Preparation and uses of amorphous boron carbide coated substrates

    DOEpatents

    Riley, Robert E.; Newkirk, Lawrence R.; Valencia, Flavio A.

    1981-09-01

    Cloth is coated at a temperature below about 1000.degree. C. with amorphous boron-carbon deposits in a process which provides a substantially uniform coating on all the filaments making up each yarn fiber bundle of the cloth. The coated cloths can be used in the as-deposited condition for example as wear surfaces where high hardness values are needed; or multiple layers of coated cloths can be hot-pressed to form billets useful for example in fusion reactor wall armor. Also provided is a method of controlling the atom ratio of B:C of boron-carbon deposits onto any of a variety of substrates, including cloths.

  14. Higgs Hunting at the Large Hadron Collider

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Sinjini Sengupta Saturday Morning Physics Texas A&M University 26 th Jan 2013  Introduction to the Standard Model  What is the Higgs really?  Hunting grounds: LHC and the detectors  How do we hunt for particles?  How would we know we see a Higgs?  What have we found so far?  What"s next? SMP 1/26/2013 2 Sinjini Sengupta  The idea that all matter is composed of elementary particles dates as far back as the 6 th century BC. ◦ Most of these were philosophical

  15. ARM - Publications: Science Team Meeting Documents

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Development of Consistent Cirrus Models for Use in the Satellite Community Yang, P. (a), Baum, B.A. (b), Nasiri, S.L. (c), Heymsfield, A.J. (d), McFarquhar, G.M. (d), Gao, B.-C. (e), Wiscombe, W.J. (f), SSAI/NASA-GSFC (a), NASA-LRC (b), University of Wisconsin-Madison (c), NCAR/MMM (d), Naval Research Laboratory (e), NASA-GSFC (f) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Satellite cirrus retrieval teams tend to develop their cirrus scattering models independently of

  16. ARM - Publications: Science Team Meeting Documents

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Evaluation of Terra MODIS Aerosol and Water Vapor Measurements Using ARM SGP Data Ferrare, R.A. (a), Brasseur, L.H. (b), Turner, D.D. (c,d), Tooman, T.P. (e), Remer, L. (f), and Gao, B-C. (g), NASA Langley Research Center (a), Science Applications International Corporation/NASA/LaRC (b), Pacific Northwest National Laboratory (c), University of Wisconsin-Madison (d), Sandia National Laboratories (e), NASA Goddard Space Flight Center (f), Naval Research Laboratory (g) Eleventh Atmospheric

  17. ARM - Publications: Science Team Meeting Documents

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ARESE II Measurements of Broadband Absorptance Valero, F.P.J. (a), Bucholtz, A. (a), Bush, B.C. (a), Cess, R.D. (b), Leitner, A.S. (a), Pope, S.K. (a), and Tooman, T.P. (c), Scripps Institution of Oceanography (a), State University of New York at Stony Brook (b), Sandia National Laboratories (c) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting ARESE II was carried out in Oklahoma in the spring of 2000. Broadband radiometers on an aircraft and on the surface collected

  18. ARM - Publications: Science Team Meeting Documents

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    From Crops to Boundary Layer and Back Down Again: the ARM Carbon Project in the Southern Great Plains Torn, M.S.(a), Berry, J.(b), Riley, W.J.(a), Fischer, M.L.(a), Billesbach, B.(c), Helliker, B.(b), and Giles, L.(b), Lawrence Berkeley National Laboratory (a), Carnegie Institution of Washington (b), University of Nebraska (c) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting One of the challenges in carbon cycle research is the vast range of scale that must be traversed by

  19. Quality of Wood Pellets Produced in British Columbia for Export

    SciTech Connect

    J. S. Tumuluru; S. Sokhansanj; C. J. Lim; T. Bi; A. Lau; S. Melin; T. Sowlati; E. Oveisi

    2010-11-01

    Wood pellet production and its use for heat and power production are increasing worldwide. The quality of export pellets has to consistently meet certain specifications as stipulated by the larger buyers, such as power utilities or as specified by the standards used for the non-industrial bag market. No specific data is available regarding the quality of export pellets to Europe. To develop a set of baseline data, wood pellets were sampled at an export terminal in Vancouver, British Columbia, Canada. The sampling period was 18 months in 2007-2008 when pellets were transferred from storage bins to the ocean vessels. The sampling frequency was once every 1.5 to 2 months for a total of 9 loading/shipping events. The physical properties of the wood pellets measured were moisture content in the range of 3.5% to 6.5%, bulk density from 728 to 808 kg/m3, durability from 97% to 99%, fines content from 0.03% to 0.87%, calorific value as is from 17 to almost 18 MJ/kg, and ash content from 0.26% to 0.93%.The diameter and length were in the range of 6.4 to 6.5 mm and 14.0 to 19.0 mm, respectively. All of these values met the published non-industrial European grades (CEN) and the grades specified by the Pellet Fuel Institute for the United States for the bag market. The measured values for wood pellet properties were consistent except the ash content values decreased over the test period.

  20. QUALITY OF WOOD PELLETS PRODUCED IN BRITISH COLUMBIA FOR EXPORT

    SciTech Connect

    Tumuluru, J.S.; Sokhansanj, Shahabaddine; Lim, C. Jim; Bi, X.T.; Lau, A.K.; Melin, Staffan; Oveisi, E.; Sowlati, T.

    2010-11-01

    Wood pellet production and its use for heat and power production are increasing worldwide. The quality of export pellets has to consistently meet certain specifications as stipulated by the larger buyers, such as power utilities or as specified by the standards used for the non-industrial bag market. No specific data is available regarding the quality of export pellets to Europe. To develop a set of baseline data, wood pellets were sampled at an export terminal in Vancouver, British Columbia, Canada. The sampling period was 18 months in 2007-2008 when pellets were transferred from storage bins to the ocean vessels. The sampling frequency was once every 1.5 to 2 months for a total of 9 loading/shipping events. The physical properties of the wood pellets measured were moisture content in the range of 3.5% to 6.5%, bulk density from 728 to 808 kg/m3, durability from 97% to 99%, fines content from 0.03% to 0.87%, calorific value as is from 17 to almost 18 MJ/kg, and ash content from 0.26% to 0.93%.The diameter and length were in the range of 6.4 to 6.5 mm and 14.0 to 19.0 mm, respectively. All of these values met the published non-industrial European grades (CEN) and the grades specified by the Pellet Fuel Institute for the United States for the bag market. The measured values for wood pellet properties were consistent except the ash content values decreased over the test period.

  1. Techno-economic analysis of renewable energy source options for a district heating project

    SciTech Connect

    Ghafghazi, S.; Sowlati, T.; Sokhansanj, Shahabaddine; Melin, Staffan

    2009-09-01

    With the increased interest in exploiting renewable energy sources for district heating applications, the economic comparison of viable options has been considered as an important step in making a sound decision. In this paper, the economic performance of several energy options for a district heating system in Vancouver, British Columbia, is studied. The considered district heating system includes a 10 MW peaking/ backup natural gas boiler to provide about 40% of the annual energy requirement and a 2.5 MW base-load system. The energy options for the base-load system include: wood pellet, sewer heat, and geothermal heat. Present values of initial and operating costs of each system were calculated over 25-year service life of the systems, considering depreciation and salvage as a negative cost item. It was shown that the wood pellet heat producing technologies provided less expensive energy followed by the sewer heat recovery, geothermal and natural gas systems. Among wood pellet technologies, the grate burner was a less expensive option than powder and gasifier technologies. It was found that using natural gas as a fuel source for the peaking/backup system accounted for more than 40% of the heat production cost for the considered district heating center. This is mainly due to the high natural gas prices which cause high operating costs over the service life of the district heating system. Variations in several economic inputs did not change the ranking of the technology options in the sensitivity analysis. However, it was found that the results were more sensitive to changes in operating costs of the system than changes in initial investment. It is economical to utilize wood pellet boilers to provide the base-load energy requirement of district heating systems Moreover, the current business approach to use natural gas systems for peaking and backup in district heating systems could increase the cost of heat production significantly.

  2. Role of curative radiotherapy in the treatment of lung cancer. [Clinical factors effecting efficacy and incidence of complications

    SciTech Connect

    Coy, P.; Kennelly, G.M.

    1980-02-15

    From 1963 to 1974, 141 patients with lung cancer were treated with curative intent in the A. Maxwell Evans Clinic in Vancouver. The clinical presentation, age and sex distribution, histology, and reasons for surgery not being carried out are examined. The results of this treatment are presented. An attempt has been made to isolate a group of patients who have a better prognosis so that treatment selection can be improved. Hemoptysis, cough, dyspnea, and incidental finding on routine chest x-ray were the most common manner of presentation. Thirty-four percent of the patients were over 70 years of age and 13% were women. The crude overall three- and five-year survival rates were 18 and 10% (19 and 9% in the men, 17 and 14% in the women). Patients presenting with dyspnea had a better survival than those presenting with cough and hemoptysis. Patients with lesions less than 3 cm in diameter had a 28% three-year survival, compared with 14% for lesions greater than 5 cm in diameter. The three- and five-year survival rates in patients over 70 years of age were 23 and 17% respectively. The response to treatment and the survival were better in the patients with squamous cell carcinoma. Twenty-two percent were alive at three years and 12% at five years as compared with 9 and 5% for other histologies. Fifty-four percent of the 35 patients with a complete response and with squamous cell carcinoma were alive at three years, compared with only 8% of the 12 patients with other histologies who showed a complete response.

  3. Particle Physics at the University of Pittsburgh Summary Report for Proposal Period FY'09-11

    SciTech Connect

    Boudreau, Joe; Dytman, Steven; Mueller, James; Naples, Donna; Paolone, Vittorio; Savinov, Vladimir

    2012-10-01

    Presented is the final summary report for grant DOE-FG02-91ER40646. The HEP group at the University consists of three tasks: B,D and L. Task B supports Pitt's CDF group at the energy frontier which includes Joe Boudreau and Paul Shepard. Work of the group includes Hao Song's thesis on the measurement of the B_c lifetime using exclusive J/psi+pion decays, and an update of the previous B_c semi-leptonic analyses under the supervision of Paul Shepard. Task D supports Pitt's neutrino group at the intensity frontier which includes PIs Dytman, Naples and Paolone. The group also includes postdoctoral research associate Danko, and thesis students Isvan (MINOS), Eberly (Minerva ), Ren (Minerva )and Hansen (T2K). This report summarizes their progress on ongoing experiments which are designed to make significant contributions to a detailed understanding of the neutrino mixing matrix. Task L supports Pitt's ATLAS group at the energy frontier and includes investigators Vladimir Savinov, James Mueller and Joe Boudreau. This group contributed both to hardware (calorimeter electronics, Savinov) and to software (Simulation, Detector Description, and Visualization: Boudreau and Mueller; MC generators: Savinov) and a summary of their progress is presented.

  4. Chemical Bonding and Structural Information of Black CarbonReference Materials and Individual Carbonaceous AtmosphericAerosols

    SciTech Connect

    Hopkins, Rebecca J.; Tivanski, Alexei V.; Marten, Bryan D.; Gilles, Mary K.

    2007-04-25

    The carbon-to-oxygen ratios and graphitic nature of a rangeof black carbon standard reference materials (BC SRMs), high molecularmass humic-like substances (HULIS) and atmospheric particles are examinedusing scanning transmission X-ray microscopy (STXM) coupled with nearedge X-ray absorption fine structure (NEXAFS) spectroscopy. UsingSTXM/NEXAFS, individual particles with diameter>100 nm are studied,thus the diversity of atmospheric particles collected during a variety offield missions is assessed. Applying a semi-quantitative peak fittingmethod to the NEXAFS spectra enables a comparison of BC SRMs and HULIS toparticles originating from anthropogenic combustion and biomass burns,thus allowing determination of the suitability of these materials forrepresenting atmospheric particles. Anthropogenic combustion and biomassburn particles can be distinguished from one another using both chemicalbonding and structural ordering information. While anthropogeniccombustion particles are characterized by a high proportion ofaromatic-C, the presence of benzoquinone and are highly structurallyordered, biomass burn particles exhibit lower structural ordering, asmaller proportion of aromatic-C and contain a much higher proportion ofoxygenated functional groups.

  5. The Effect of Cellulose Crystal Structure and Solid-State Morphology on the Activity of Cellulases

    SciTech Connect

    Stipanovic, Arthur J

    2014-11-17

    Consistent with the US-DOE and USDA “Roadmap” objective of producing ethanol and chemicals from cellulosic feedstocks more efficiently, a three year research project entitled “The Effect of Cellulose Crystal Structure and Solid-State Morphology on the Activity of Cellulases” was initiated in early 2003 under DOE sponsorship (Project Number DE-FG02-02ER15356). A three year continuation was awarded in June 2005 for the period September 15, 2005 through September 14, 2008. The original goal of this project was to determine the effect of cellulose crystal structure, including allomorphic crystalline form (Cellulose I, II, III, IV and sub-allomorphs), relative degree of crystallinity and crystallite size, on the activity of different types of genetically engineered cellulase enzymes to provide insight into the mechanism and kinetics of cellulose digestion by “pure” enzymes rather than complex mixtures. We expected that such information would ultimately help enhance the accessibility of cellulose to enzymatic conversion processes thereby creating a more cost-effective commercial process yielding sugars for fermentation into ethanol and other chemical products. Perhaps the most significant finding of the initial project phase was that conversion of native bacterial cellulose (Cellulose I; BC-I) to the Cellulose II (BC-II) crystal form by aqueous NaOH “pretreatment” provided an increase in cellulase conversion rate approaching 2-4 fold depending on enzyme concentration and temperature, even when initial % crystallinity values were similar for both allomorphs.

  6. Substantial Contribution of Anthropogenic Air Pollution to Catastrophic Floods in Southwest China

    SciTech Connect

    Fan, Jiwen; Rosenfeld, Daniel; Yang, Yan; Zhao, Chun; Leung, Lai-Yung R.; Li, Zhanqing

    2015-07-20

    Extreme events such as heat waves, floods, and droughts, have become more frequent since the 1950s1-2. This is likely caused through changes in greenhouse gases and aerosols that perturb the radiative balance and alter cloud processes3-8. On 8-9 July, 2013 a catastrophic flood devastated several metropolitan areas at the foothills of the Sichuan Basin. Using a high-resolution coupled atmosphere-chemistry model, we show that this disaster was not entirely natural. Ensemble simulations robustly show that the severe anthropogenic pollution in the Sichuan Basin significantly enhanced rainfall intensity over the mountainous area northwest of the basin. The heavy air pollution (mainly black carbon) absorbs solar radiation in the lower atmosphere at the expense of surface cooling, which stabilizes the atmosphere and suppresses convection and precipitation over the basin. The enhanced moisture and moist static energy over the basin are then transported by the prevailing winds towards the mountains during daytime. As the excessive moist air that reaches the foothills at night is orographically lifted, very strong convection develops and produces extremely heavy precipitation. Reducing black carbon (BC) emissions in the basin can effectively mitigate the extreme precipitation in the mountains. Unfortunately, BC emissions have been increasing in many developing countries including China9, making them more vulnerable to enhanced disasters as reported here.

  7. Waste management project's alternatives: A risk-based multi-criteria assessment (RBMCA) approach

    SciTech Connect

    Karmperis, Athanasios C.; Sotirchos, Anastasios; Aravossis, Konstantinos; Tatsiopoulos, Ilias P.

    2012-01-15

    Highlights: Black-Right-Pointing-Pointer We examine the evaluation of a waste management project's alternatives. Black-Right-Pointing-Pointer We present a novel risk-based multi-criteria assessment (RBMCA) approach. Black-Right-Pointing-Pointer In the RBMCA the evaluation criteria are based on the quantitative risk analysis of the project's alternatives. Black-Right-Pointing-Pointer Correlation between the criteria weight values and the decision makers' risk preferences is examined. Black-Right-Pointing-Pointer Preference to the multi-criteria against the one-criterion evaluation process is discussed. - Abstract: This paper examines the evaluation of a waste management project's alternatives through a quantitative risk analysis. Cost benefit analysis is a widely used method, in which the investments are mainly assessed through the calculation of their evaluation indicators, namely benefit/cost (B/C) ratios, as well as the quantification of their financial, technical, environmental and social risks. Herein, a novel approach in the form of risk-based multi-criteria assessment (RBMCA) is introduced, which can be used by decision makers, in order to select the optimum alternative of a waste management project. Specifically, decision makers use multiple criteria, which are based on the cumulative probability distribution functions of the alternatives' B/C ratios. The RBMCA system is used for the evaluation of a waste incineration project's alternatives, where the correlation between the criteria weight values and the decision makers' risk preferences is analyzed and useful conclusions are discussed.

  8. Vacuum self-magnetization?

    SciTech Connect

    Perez Rojas, H.; Rodriguez Querts, E.

    2006-06-19

    We study vacuum properties in a strong magnetic field as the zero temperature and zero density limit of quantum statistics. For charged vector bosons (W bosons) the vacuum energy density diverges for B > B{sub c} = m{sub w}{sup 2}/e, leading to vacuum instability. A logarithmic divergence of vacuum magnetization is found for B = Bc, which suggests that if the magnetic field is large enough, it is self-consistently maintained, and this mechanism actually prevents B from reaching the critical value Bc. For virtual neutral vector bosons bearing an anomalous magnetic moment, the instability of the ground state for B > B{sub c}{sup '} = m{sub n}{sup 2}/q also leads to the vacuum energy density divergence for fields B > B{sub c}{sup '} and to the magnetization divergence for B B{sub c}{sup '}. The possibility of virtual electron-positron pairs bosonization in strong magnetic field and the applicability of the neutral bosons model to describe the virtual positronium behavior in a magnetic field are discussed. We conjecture that this could lead to vacuum self-magnetization in QED.

  9. Numerical calculation of protein-ligand binding rates through solution of the Smoluchowski equation using smooth particle hydrodynamics

    SciTech Connect

    Pan, Wenxiao; Daily, Michael D.; Baker, Nathan A.

    2015-12-01

    We demonstrate the accuracy and effectiveness of a Lagrangian particle-based method, smoothed particle hydrodynamics (SPH), to study diffusion in biomolecular systems by numerically solving the time-dependent Smoluchowski equation for continuum diffusion. The numerical method is first verified in simple systems and then applied to the calculation of ligand binding to an acetylcholinesterase monomer. Unlike previous studies, a reactive Robin boundary condition (BC), rather than the absolute absorbing (Dirichlet) boundary condition, is considered on the reactive boundaries. This new boundary condition treatment allows for the analysis of enzymes with "imperfect" reaction rates. Rates for inhibitor binding to mAChE are calculated at various ionic strengths and compared with experiment and other numerical methods. We find that imposition of the Robin BC improves agreement between calculated and experimental reaction rates. Although this initial application focuses on a single monomer system, our new method provides a framework to explore broader applications of SPH in larger-scale biomolecular complexes by taking advantage of its Lagrangian particle-based nature.

  10. Metallography and microstructure interpretation of some archaeological tin bronze vessels from Iran

    SciTech Connect

    Oudbashi, Omid; Davami, Parviz

    2014-11-15

    Archaeological excavations in western Iran have recently revealed a significant Luristan Bronzes collection from Sangtarashan archaeological site. The site and its bronze collection are dated to Iron Age II/III of western Iran (10th–7th century BC) according to archaeological research. Alloy composition, microstructure and manufacturing technique of some sheet metal vessels are determined to reveal metallurgical processes in western Iran in the first millennium BC. Experimental analyses were carried out using Scanning Electron Microscopy–Energy Dispersive X-ray Spectroscopy and Optical Microscopy/Metallography methods. The results allowed reconstructing the manufacturing process of bronze vessels in Luristan. It proved that the samples have been manufactured with a binary copper–tin alloy with a variable tin content that may relates to the application of an uncontrolled procedure to make bronze alloy (e.g. co-smelting or cementation). The presence of elongated copper sulphide inclusions showed probable use of copper sulphide ores for metal production and smelting. Based on metallographic studies, a cycle of cold working and annealing was used to shape the bronze vessels. - Highlights: • Sangtarashan vessels are made by variable Cu-Sn alloys with some impurities. • Various compositions occurred due to applying uncontrolled smelting methods. • The microstructure represents thermo-mechanical process to shape bronze vessels. • In one case, the annealing didn’t remove the eutectoid remaining from casting. • The characteristics of the bronzes are similar to other Iron Age Luristan Bronzes.

  11. Comparative analysis of various CO2 configurations in supermarket refrigeration systems

    DOE PAGES [OSTI]

    Sharma, Vishaldeep; Fricke, Brian; Bansal, Pradeep

    2014-07-09

    Our paper presents an analysis of various CO2 transcritical and cascade/secondary loop refrigeration systems that are becoming popular in supermarket applications with the objective of optimizing the operating parameters of these systems. In addition, the performance of selected CO2-based refrigeration systems is compared to the baseline R404A multiplex direct expansion system using bin analyses in the eight climate zones of the United States. Moreover, for the refrigeration systems investigated, it was found that the Transcritical Booster System with Bypass Compressor (TBS-BC) had the lowest energy consumption for ambient temperatures (Tamb) less than 8 °C, and for higher ambient temperatures themore » R404A direct expansion system was found to have the lowest energy consumption. Finally, the TBS-BC performs equivalent to or better than the R404A direct expansion system in the northern two-thirds of the US. For the southern portion of the US, the R404A multiplex DX system performs better than CO2 systems.« less

  12. Measurement of the ratio of the production cross sections times branching fractions of $$B_{c}^{\\pm} \\to J/\\psi \\pi^{\\pm}$$ and $$B^{\\pm} \\to J/\\psi K^{\\pm}$$ and $$\\mathcal{B}(B_{c}^{\\pm} \\to J/\\psi \\pi^{\\pm}\\pi^{\\pm}\\pi^{\\mp})/\\mathcal{B}(B_{c}^{\\pm} \\to J/\\psi \\pi^{\\pm})$$ in pp collisions at $$\\sqrt{s} =$$ 7 TeV

    DOE PAGES [OSTI]

    Khachatryan, Vardan

    2015-01-13

    The ratio of the production cross sections times branching fractions (σ(B±c)B(B±c→J/ψπ±))/(σ(B±)B(B±→J/ψK±)) is studied in proton-proton collisions at a center of-mass energy of 7 TeV with the CMS detector at the LHC. The kinematic region investigated requires B c ± and B± mesons with transverse momentum p T > 15 GeV and rapidity |y|< 1.6. The data sample corresponds to an integrated luminosity of 5.1 fb-1. The ratio is determined to be [0.48±0.05(stat)± 0.03(syst)±0.05 (τBc)]%. The B c ± → J/ψπ ± π ± π ∓ decay is also observed in the same data sample. Using a model-independent method developed tomore » measure the efficiency given the presence of resonant behaviour in the three-pion system, the ratio of the branching fractions B(B±c→J/ψπ±π±π∓)/B(B±c→J/ψπ±) is measured to be 2.55±0.80(stat)±0.33(syst)+0.04-0.01(τBc), consistent with the previous LHCb result.« less

  13. Comparative analysis of various CO2 configurations in supermarket refrigeration systems

    SciTech Connect

    Sharma, Vishaldeep; Fricke, Brian; Bansal, Pradeep

    2014-07-09

    Our paper presents an analysis of various CO2 transcritical and cascade/secondary loop refrigeration systems that are becoming popular in supermarket applications with the objective of optimizing the operating parameters of these systems. In addition, the performance of selected CO2-based refrigeration systems is compared to the baseline R404A multiplex direct expansion system using bin analyses in the eight climate zones of the United States. Moreover, for the refrigeration systems investigated, it was found that the Transcritical Booster System with Bypass Compressor (TBS-BC) had the lowest energy consumption for ambient temperatures (Tamb) less than 8 °C, and for higher ambient temperatures the R404A direct expansion system was found to have the lowest energy consumption. Finally, the TBS-BC performs equivalent to or better than the R404A direct expansion system in the northern two-thirds of the US. For the southern portion of the US, the R404A multiplex DX system performs better than CO2 systems.

  14. Ancient and Modern Laminated Composites - From the Great Pyramid of Gizeh to Y2K

    SciTech Connect

    Wadsworth, J.; Lesuer, D.R.

    2000-03-14

    Laminated metal composites have been cited in antiquity; for example, a steel laminate that may date as far back as 2750 B.C., was found in the Great Pyramid in Gizeh in 1837. A laminated shield containing bronze, tin, and gold layers, is described in detail by Homer. Well-known examples of steel laminates, such as an Adze blade, dating to 400 B.C. can be found in the literature. The Japanese sword is a laminated composite at several different levels and Merovingian blades were composed of laminated steels. Other examples are also available, including composites from China, Thailand, Indonesia, Germany, Britain, Belgium, France, and Persia. The concept of lamination to provide improved properties has also found expression in modern materials. Of particular interest is the development of laminates including high carbon and low carbon layers. These materials have unusual properties that are of engineering interest; they are similar to ancient welded Damascus steels. The manufacture of collectable knives, labeled ''welded Damascus'', has also been a focus of contemporary knifemakers. Additionally, in the Former Soviet Union, laminated composite designs have been used in engineering applications. Each of the above areas will be briefly reviewed, and some of the metallurgical principles will be described that underlie improvement in properties by lamination. Where appropriate, links are made between these property improvements and those that may have been present in ancient artifacts.

  15. A Sensitivity Study on Modeling Black Carbon in Snow and its Radiative Forcing over the Arctic and Northern China

    SciTech Connect

    Qian, Yun; Wang, Hailong; Zhang, Rudong; Flanner, M. G.; Rasch, Philip J.

    2014-06-02

    Black carbon in snow (BCS) simulated in the Community Atmosphere Model (CAM5) is evaluated against measurements over Northern China and the Arctic, and its sensitivity to atmospheric deposition and two parameters that affect post-depositional enrichment is explored. The BCS concentration is overestimated (underestimated) by a factor of two in Northern China (Arctic) in the default model, but agreement with observations is good over both regions in the simulation with improvements in BC transport and deposition. Sensitivity studies indicate that uncertainty in the melt-water scavenging efficiency (MSE) parameter substantially affects BCS and its radiative forcing (by a factor of 2-7) in the Arctic through post-depositional enrichment. The MSE parameter has a relatively small effect on the magnitude of BCS seasonal cycle but can alter its phase in Northern China. The impact of the snow aging scaling factor (SAF) on BCS, partly through the post-depositional enrichment effect, shows more complex latitudinal and seasonal dependence. Similar to MSE, SAF affects more significantly the magnitude (phase) of BCS season cycle over the Arctic (Northern China). While uncertainty associated with the representation of BC transport and deposition processes in CAM5 is more important than that associated with the two snow model parameters in Northern China, the two uncertainties have comparable effect in the Arctic.

  16. Final Report: Wireless Instrument for Automated Measurement of Clean Cookstove Usage and Black Carbon Emissions

    SciTech Connect

    Lukac, Martin; Ramanathan, Nithya; Graham, Eric

    2013-09-10

    Black carbon (BC) emissions from traditional cooking fires and other sources are significant anthropogenic drivers of radiative forcing. Clean cookstoves present a more energy-efficient and cleaner-burning vehicle for cooking than traditional wood-burning stoves, yet many existing cookstoves reduce emissions by only modest amounts. Further research into cookstove use, fuel types, and verification of emissions is needed as adoption rates for such stoves remain low. Accelerated innovation requires techniques for measuring and verifying such cookstove performance. The overarching goal of the proposed program was to develop a low-cost, wireless instrument to provide a high-resolution profile of the cookstove BC emissions and usage in the field. We proposed transferring the complexity of analysis away from the sampling hardware at the measurement site and to software at a centrally located server to easily analyze data from thousands of sampling instruments. We were able to build a low-cost field-based instrument that produces repeatable, low-cost estimates of cookstove usage, fuel estimates, and emission values with low variability. Emission values from our instrument were consistent with published ranges of emissions for similar stove and fuel types.

  17. Sequential Pattern Mining of Electronic Healthcare Reimbursement Claims: Experiences and Challenges in Uncovering How Patients are Treated by Physicians

    SciTech Connect

    Pullum, Laura L; Ramanathan, Arvind; Hobson, Tanner C

    2015-01-01

    We examine the use of electronic healthcare reimbursement claims (EHRC) for analyzing healthcare delivery and practice patterns across the United States (US). We show that EHRCs are correlated with disease incidence estimates published by the Centers for Disease Control. Further, by analyzing over 1 billion EHRCs, we track patterns of clinical procedures administered to patients with autism spectrum disorder (ASD), heart disease (HD) and breast cancer (BC) using sequential pattern mining algorithms. Our analyses reveal that in contrast to treating HD and BC, clinical procedures for ASD diagnoses are highly varied leading up to and after the ASD diagnoses. The discovered clinical procedure sequences also reveal significant differences in the overall costs incurred across different parts of the US, indicating a lack of consensus amongst practitioners in treating ASD patients. We show that a data-driven approach to understand clinical trajectories using EHRC can provide quantitative insights into how to better manage and treat patients. Based on our experience, we also discuss emerging challenges in using EHRC datasets for gaining insights into the state of contemporary healthcare delivery and practice in the US.

  18. Physics with gamma-beams and charged particle detectors: I) Nuclear structure II) Nuclear astrophysics

    SciTech Connect

    Gai, Moshe

    2015-02-24

    The Charged Particle Working Group (CPWG) is proposing to construct large area Silicon Strip Detector (SSD), a gas Time Projection Chamber detector read by an electronic readout system (eTPC) and a Bubble Chamber (BC) containing superheated high purity water to be used in measurements utilizing intense gamma-ray beams from the newly constructed ELI-NP facility at Magurele, Bucharest in Romania. We intend to use the SSD and eTPC detectors to address essential problems in nuclear structure physics, such as clustering and the many alpha-decay of light nuclei such as {sup 12}C and {sup 16}O. All three detectors (SSD, eTPC and BC) will be used to address central problems in nuclear astrophysics such as the astrophysical cross section factor of the {sup 12}C(α,γ) reaction and other processes central to stellar evolution. The CPWG intends to submit to the ELI-NP facility a Technical Design Report (TDR) for the proposed detectors.

  19. Nanostructures of Liquid Crystal Phases in Mixtures of Bent-core and Rod-shaped Molecules

    SciTech Connect

    S Hong; R Verduzco; J Gleeson; S Sprunt; A Jakli

    2011-12-31

    We report small angle x-ray scattering (SAXS) studies of isotropic, nematic, and smectic mesophases formed by binary mixtures of bent-core (BC) and rod-shaped (RS) molecules. While optical studies indicate that the components are fully miscible, SAXS reveals fascinating structures that are consistent with segregation on a nanoscopic scale. We find that tilted smectic clusters, which have been previously reported in both the nematic and isotropic states of the pure BC materials, are also present in mixtures with up to 50 wt% of the RS compound; this is consistent with previous dielectric and flexoelectric studies on such mixtures. Unexpectedly in this concentration range the clusters are present in the isotropic and in the induced smectic phase range, as well as throughout the nematic phase. The results in the smectic phase also reveal complex layering phenomena, providing important insight into the interaction between bent and rod-shaped molecules. These studies will be crucial in the design of promising new functional nanomaterials.

  20. Nanostructures of liquid crystal phases in mixtures of bent-core and rod-shaped molecules

    SciTech Connect

    Hong, S. H.; Gleeson, J. T.; Sprunt, S.; Verduzco, R.; Jakli, A.

    2011-06-15

    We report small angle x-ray scattering (SAXS) studies of isotropic, nematic, and smectic mesophases formed by binary mixtures of bent-core (BC) and rod-shaped (RS) molecules. While optical studies indicate that the components are fully miscible, SAXS reveals fascinating structures that are consistent with segregation on a nanoscopic scale. We find that tilted smectic clusters, which have been previously reported in both the nematic and isotropic states of the pure BC materials, are also present in mixtures with up to 50 wt% of the RS compound; this is consistent with previous dielectric and flexoelectric studies on such mixtures. Unexpectedly in this concentration range the clusters are present in the isotropic and in the induced smectic phase range, as well as throughout the nematic phase. The results in the smectic phase also reveal complex layering phenomena, providing important insight into the interaction between bent and rod-shaped molecules. These studies will be crucial in the design of promising new functional nanomaterials.

  1. Development of innovative techniques and principles that may be used as models to improve plant performance. Technical progress report, February 1, 1990--January 31, 1993

    SciTech Connect

    Hanna, W.W.; Burton, G.W.

    1992-06-01

    Methods and techniques for transferring germplasm from wild to cultivated species are being developed. The transferred germplasm is being shown to be valuable in plant breeding and in cultivar development. In the primary gene pool of the grassy Pennisetum glaucum subspecies monodii germplasm, some cytoplasms are being identified that appear to have significant effects on forage yields and morphological characteristics. One cytoplasm, A{sub 4}, is very stable for male sterility and fertility is not easily restored by other lines. It should be a valuable cytoplasm for producing commercial forage hybrids. Disease resistance and yield genes transferred from monodii to cultivated pearl millet lines are having a major impact on increasing production of animals grazing disease resistant Tifleaf 2 pearl millet. Genes controlling resistance to many of the world-wide diseases on pearl millet are being identified in the monodii germplasm. Valuable germplasm has been transferred from the secondary gene pool P. purpuroum) which is used as the pollinator of the first pearl millet grain hybrid in the US Production of 7-chromosome gametes in 42-chromosome interspecific hybrids appears to be genotype specific and makes possible transfer of germplasm from the secondary gene pool to cultivated diploid pearl millet. Significant progress has been made in transferring genes controlling apomixis from P. squamulatum (tertiary gene pool) to cultivated pearl millet. Highly apomictic BC{sub 4} plants have been recovered, one of which sets five times as much seed as the best BC{sub 3} plant.

  2. ISDAC - NRC Convair-580 Flight Hours Date Flight From To Start

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    - NRC Convair-580 Flight Hours Date Flight From To Start End hrs 03/21/08 F01-Test-01 Ottawa Ottawa 16:15Z 18:15Z 2.2 03/22/08 F02-Test-02 Ottawa Ottawa 12:45Z 15:50Z 3.3 03/28/08 F03-Transit-01 Ottawa, ON Kenora, ON 12:23Z 15:44Z 3.6 03/28/08 F04-Transit-02 Kenora, ON Calgary, AB 16:30Z 19:36Z 3.3 03/28/08 F05-Transit-03 Calgary, AB Comox, BC 20:24Z 22:17Z 2.1 03/29/08 F06-Transit-04 Comox, BC Whitehorse, YK 17:43Z 20:50Z 3.3 03/29/08 F07-Transit-05 Whitehorse, YK Fairbanks 21:51Z 23:42Z 2.1

  3. HOT GAS LINES IN T TAURI STARS

    SciTech Connect

    Ardila, David R.; Herczeg, Gregory J.; Gregory, Scott G.; Hillenbrand, Lynne A.; Ingleby, Laura; Bergin, Edwin; Bethell, Thomas; Calvet, Nuria; France, Kevin; Brown, Alexander; Edwards, Suzan; Johns-Krull, Christopher; Linsky, Jeffrey L.; Yang, Hao; Valenti, Jeff A.; Abgrall, Herve; Alexander, Richard D.; Brown, Joanna M.; Espaillat, Catherine; Hussain, Gaitee; and others

    2013-07-01

    For Classical T Tauri Stars (CTTSs), the resonance doublets of N V, Si IV, and C IV, as well as the He II 1640 A line, trace hot gas flows and act as diagnostics of the accretion process. In this paper we assemble a large high-resolution, high-sensitivity data set of these lines in CTTSs and Weak T Tauri Stars (WTTSs). The sample comprises 35 stars: 1 Herbig Ae star, 28 CTTSs, and 6 WTTSs. We find that the C IV, Si IV, and N V lines in CTTSs all have similar shapes. We decompose the C IV and He II lines into broad and narrow Gaussian components (BC and NC). The most common (50%) C IV line morphology in CTTSs is that of a low-velocity NC together with a redshifted BC. For CTTSs, a strong BC is the result of the accretion process. The contribution fraction of the NC to the C IV line flux in CTTSs increases with accretion rate, from {approx}20% to up to {approx}80%. The velocity centroids of the BCs and NCs are such that V{sub BC} {approx}> 4 V{sub NC}, consistent with the predictions of the accretion shock model, in at most 12 out of 22 CTTSs. We do not find evidence of the post-shock becoming buried in the stellar photosphere due to the pressure of the accretion flow. The He II CTTSs lines are generally symmetric and narrow, with FWHM and redshifts comparable to those of WTTSs. They are less redshifted than the CTTSs C IV lines, by {approx}10 km s{sup -1}. The amount of flux in the BC of the He II line is small compared to that of the C IV line, and we show that this is consistent with models of the pre-shock column emission. Overall, the observations are consistent with the presence of multiple accretion columns with different densities or with accretion models that predict a slow-moving, low-density region in the periphery of the accretion column. For HN Tau A and RW Aur A, most of the C IV line is blueshifted suggesting that the C IV emission is produced by shocks within outflow jets. In our sample, the Herbig Ae star DX Cha is the only object for which we find a

  4. INTEGRATED OUTCROP AND SUBSURFACE STUDIES OF THE INTERWELL ENVIRONMENT OF CARBONATE RESERVOIRS: CLEAR FORK (LEONARDIAN-AGE) RESERVOIRS, WEST TEXAS AND NEW MEXICO

    SciTech Connect

    F. Jerry Lucia

    2002-01-31

    This is the final report of the project ''Integrated Outcrop and Subsurface Studies of the Interwell Environment of Carbonate Reservoirs: Clear Fork (Leonardian-Age) Reservoirs, West Texas and New Mexico'', Department of Energy contract no. DE-AC26-98BC15105 and is the third in a series of similar projects funded jointly by the U.S. Department of Energy and The University of Texas at Austin, Bureau of Economic Geology, Reservoir Characterization Research Laboratory for Carbonates. All three projects focus on the integration of outcrop and subsurface data for the purpose of developing improved methods for modeling petrophysical properties in the interwell environment. The first project, funded by contract no. DE-AC22-89BC14470, was a study of San Andres outcrops in the Algerita Escarpment, Guadalupe Mountains, Texas and New Mexico, and the Seminole San Andres reservoir, Permian Basin. This study established the basic concepts for constructing a reservoir model using sequence-stratigraphic principles and rock-fabric, petrophysical relationships. The second project, funded by contract no. DE-AC22-93BC14895, was a study of Grayburg outcrops in the Brokeoff Mountains, New Mexico, and the South Cowden Grayburg reservoir, Permian Basin. This study developed a sequence-stratigraphic succession for the Grayburg and improved methods for locating remaining hydrocarbons in carbonate ramp reservoirs. The current study is of the Clear Fork Group in Apache Canyon, Sierra Diablo Mountains, West Texas, and the South Wasson Clear Fork reservoir, Permian Basin. The focus was on scales of heterogeneity, imaging high- and low-permeability layers, and the impact of fractures on reservoir performance. In this study (1) the Clear Fork cycle stratigraphy is defined, (2) important scales of petrophysical variability are confirmed, (3) a unique rock-fabric, petrophysical relationship is defined, (4) a porosity method for correlating high-frequency cycles and defining rock-fabric flow layers

  5. Locoregional Treatment for Breast Carcinoma After Hodgkin's Lymphoma: The Breast Conservation Option

    SciTech Connect

    Haberer, Sophie; Belin, Lisa; Le Scodan, Romuald; Kirova, Youlia M.; Savignoni, Alexia; Stevens, Denise; Moisson, Patricia; Decaudin, Didier; Pierga, Jean-Yves; Reyal, Fabien; Campana, Francois; Fourquet, Alain; Bollet, Marc A.

    2012-02-01

    Purpose: To report clinical and pathologic characteristics and outcome of breast cancer (BC) after irradiation for Hodgkin's lymphoma (HL) in women treated at the Institut Curie, with a special focus on the breast-conserving option. Methods and Materials: Medical records of 72 women who developed either ductal carcinoma in situ or Stage I-III invasive carcinoma of the breast after HL between 1978 and 2009 were retrospectively reviewed. Results: Median age at HL diagnosis was 23 years (range, 14-53 years). Median total dose received by the mediastinum was 40 Gy, mostly by a mantle-field technique. Breast cancers occurred after a median interval of 21 years (range, 5-40 years). Ductal invasive carcinoma and ductal carcinoma in situ represented, respectively, 51 cases (71%) and 14 cases (19%). Invasive BCs consisted of 47 cT0-2 tumors (82%), 5 cN1-3 tumors (9%), and 20 Grade 3 tumors (35%). Locoregional treatment for BCs consisted of mastectomy with (3) or without (36) radiotherapy in 39 patients and lumpectomy with (30) or without (2) adjuvant radiotherapy in 32 patients. The isocentric lateral decubitus radiation technique was used in 17 patients after breast-conserving surgery (57%). With a median follow-up of 7 years, 5-year overall survival rate and locoregional control rate were, respectively, 74.5% (95% confidence interval [CI], 64-88%) and 82% (95% CI, 72-93%) for invasive carcinoma and 100% (95% CI, 100 -100%) and 92% (95% CI, 79-100%) for in situ carcinoma. In patients with invasive tumors, the 5-year distant disease-free survival rate was 79% (95% CI, 69-91%), and 13 patients died of progressive BC. Contralateral BC was diagnosed in 10 patients (14%). Conclusions: Breast-conserving treatment can be an option for BCs that occur after HL, despite prior thoracic irradiation. It should consist of lumpectomy and adjuvant breast radiotherapy with use of adequate techniques, such as the lateral decubitus isocentric position, to protect the underlying heart and

  6. EVALUATION OF VADOSE ZONE TREATMENT TECHNOLOGIES TO IMMOBILIZE TECHNETIUM-99

    SciTech Connect

    PETERSEN, S.W.

    2006-03-15

    The Hanford Site End State Vision document (DOE/RL-2003-59) states: ''There should be an aggressive plan to develop technology for remediation of the contamination that could get to the groundwater (particularly the technetium [{sup 99}Tc])''. In addition, there is strong support from the public and regulatory agencies for the above statement, with emphasis on investigation of treatment alternatives. In July 2004, PNNL completed a preliminary evaluation of remediation technologies with respect to their effectiveness and implementability for immobilization of {sup 99}Tc beneath the BC Cribs in the 200 West Area (Truex, 2004). As a result of this evaluation, PNNL recommended treatability testing of in situ soil desiccation, because it has the least uncertainty of those technologies evaluated in July 2004 (Treatability Test Outline, September 30, 2004). In 2005, DOE-RL and Fluor Hanford convened an independent technical panel to review alternative remediation technologies, including desiccation, at a three-day workshop in Richland, Washington. The panel was composed of experts in vadose-zone transport, infiltration control, hydrology, geochemistry, environmental engineering, and geology. Their backgrounds include employment in academia, government laboratories, industry, and consulting. Their review, presented in this document, is based upon written reports from Hanford, oral presentations from Hanford staff, and each panel members' years of experience in their particular field of expertise. The purpose of this report is to document the panel's evaluation of various treatment alternatives with potential for minimizing contaminant migration in the deep vadose zone at the Department of Energy Hanford Site. The panel was tasked with assessing the most viable and practical approach and making recommendations for testing. The evaluation of vadose-zone treatment alternatives was conducted to be broadly applicable at a variety of locations at Hanford. However, because of

  7. Nickel aluminide alloy suitable for structural applications

    DOEpatents

    Liu, Chain T.

    1998-01-01

    Alloys for use in structural applications based upon NiAl to which are added selected elements to enhance room temperature ductility and high temperature strength. Specifically, small additions of molybdenum produce a beneficial alloy, while further additions of boron, carbon, iron, niobium, tantalum, zirconium and hafnium further improve performance of alloys at both room temperature and high temperatures. A preferred alloy system composition is Ni--(49.1.+-.0.8%)Al--(1.0.+-.0.8%)Mo--(0.7.+-.0.5%)Nb/Ta/Zr/Hf--(nearly zero to 0.03%)B/C, where the % is at. % in each of the concentrations. All alloys demonstrated good oxidation resistance at the elevated temperatures. The alloys can be fabricated into components using conventional techniques.

  8. Project Records Information System (PRIS) user's manual

    SciTech Connect

    Smith, P.S.; Nations, J.A.; Short, R.D.

    1991-08-01

    The Projects Record Information System (PRIS) is an interactive system developed for the Information Services Division (ISD) of Martin Marietta Energy Systems, Inc., to perform indexing, maintenance, and retrieval of information about Engineering project record documents for which they are responsible. This PRIS User's Manual provides instruction on the use of this system. Section 2.0 of this manual presents an overview of PRIS, describing the system's purpose; the data that it handles, functions it performs; hardware, software, and access; and help and error functions. Section 3.0 describes the interactive menu-driven operation of PRIS. Appendixes A, B,C, and D contain the data dictionary, help screens, report descriptions, and a primary menu structure diagram, respectively.

  9. Nickel aluminide alloy suitable for structural applications

    DOEpatents

    Liu, C.T.

    1998-03-10

    Alloys are disclosed for use in structural applications based upon NiAl to which are added selected elements to enhance room temperature ductility and high temperature strength. Specifically, small additions of molybdenum produce a beneficial alloy, while further additions of boron, carbon, iron, niobium, tantalum, zirconium and hafnium further improve performance of alloys at both room temperature and high temperatures. A preferred alloy system composition is Ni--(49.1{+-}0.8%)Al--(1.0{+-}0.8%)Mo--(0.7 + 0.5%)Nb/Ta/Zr/Hf--(nearly zero to 0.03%)B/C, where the % is at. % in each of the concentrations. All alloys demonstrated good oxidation resistance at the elevated temperatures. The alloys can be fabricated into components using conventional techniques. 4 figs.

  10. Community Loblolly Pine Slash Pine

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Community _ Loblolly Pine _ Slash Pine oMixed Pine/Hardwood D Upland Hardwod LJ Bottomland Hardwood IJ::J Carolina Bay Wetland * Wastesites N Streams I)iI, Utility ROW /l\W Roads oTES Plants (2) o SRS Bays D Three Rivers Landfill E2J Hydric Soils 280 o Soils Soil Series and Phase D BcB 1iii0g DOrA _ OrB D Rm _ TrB D WaB 280 I Il~ I ~ Figure 23-1. Plant cOllllllunities and soils associated with the Dry Bay Set-Aside Area. 23-7 Set-Aside 23: Dry Bay

  11. Small-angle fragmentation of carbon ions at 0.6 GeV/n: A comparison with models of ion-ion interactions

    DOE PAGES [OSTI]

    Krutenkova, A. P.; Abramov, B. M.; Alekseev, P. N.; Borodin, Yu. A.; Bulychjov, S. A.; Dukhovskoy, I. A.; Khanov, A. I.; Kulikov, V. V.; Martemianov, M. A.; Mashnik, S. G.; et al

    2015-05-29

    Momentum distributions of hydrogen and helium isotopes from ¹²C fragmentation at 3.5° were measured at 0.6 GeV/nucleon in the FRAGM experiment at ITEP TWA heavy ion accelerator. The fragments were selected by correlated time of flight and dE/dx measurements with a magnetic spectrometer with scintillation counters. The main attention was drawn to the high momentum region where the fragment velocity exceeds the velocity of the projectile nucleus. The momentum spectra of fragments span the region of the fragmentation peak as well as the cumulative region. The differential cross sections cover six orders of magnitude. The distributions measured are compared tomore » the predictions of three ion-ion interaction models: BC, QMD and LAQGSM03.03. The kinetic energy spectra of fragments in the projectile rest frame have an exponential shape with two temperatures, being defined by their slope parameters.« less

  12. Pacific Northwest Storms Situation Report # 1

    SciTech Connect

    2006-12-15

    Severe wind and snow storms hit the Pacific Northwest region on December 14 – 15, 2006, following severe flooding during the past few days. The severe weather resulted in major power outages through the region. At peak there were 1.8 million customers without power which included BC Hydro in Canada. Currently, there are over 1.5 million outages in the region as a result of the Pacific Northwest Storms. This represents about 42 percent of customers in affected utility service areas in Oregon and Washington. See table below. Because the current wind and snow storms are coming on the heels of extensive flooding in the region, electric utilities are experiencing damage. Wind gusts reached close to 100 mph in some areas of the region. The storm is expected to bring its strong winds and heavy snow into Idaho, Montana and Wyoming Friday and into the weekend. There are currently no reported major impacts to the petroleum and natural gas infrastructure.

  13. Anomalous magnetic structure and spin dynamics in magnetoelectric LiFePO4

    SciTech Connect

    Toft-Petersen, Rasmus; Reehuis, Manfred; Jensen, Thomas B. S.; Andersen, Niels H.; Li, Jiying; Le, Manh Duc; Laver, Mark; Niedermayer, Christof; Klemke, Bastian; Lefmann, Kim; Vaknin, David

    2015-07-06

    We report significant details of the magnetic structure and spin dynamics of LiFePO4 obtained by single-crystal neutron scattering. Our results confirm a previously reported collinear rotation of the spins away from the principal b axis, and they determine that the rotation is toward the a axis. In addition, we find a significant spin-canting component along c. Furthermore, the possible causes of these components are discussed, and their significance for the magnetoelectric effect is analyzed. Inelastic neutron scattering along the three principal directions reveals a highly anisotropic hard plane consistent with earlier susceptibility measurements. While using a spin Hamiltonian, we show that the spin dimensionality is intermediate between XY- and Ising-like, with an easy b axis and a hard c axis. As a result, it is shown that both next-nearest neighbor exchange couplings in the bc plane are in competition with the strongest nearest neighbor coupling.

  14. Gypsy Field project in reservoir characterization

    SciTech Connect

    Castagna, John P.; Jr., O'Meara, Daniel J.

    2000-01-12

    The overall objective of this project was to use extensive Gypsy Field Laboratory and data as a focus for developing and testing reservoir characterization methods that are targeted at improved recovery of conventional oil. This report describes progress since project report DOE/BC/14970-7 and covers the period June 1997-September 1998 and represents one year of funding originally allocated for the year 1996. During the course of the work previously performed, high resolution geophysical and outcrop data revealed the importance of fractures at the Gypsy site. In addition, personnel changes and alternative funding (OCAST and oil company support of various kinds) allowed the authors to leverage DOE contributions and focus more on geophysical characterization.

  15. Revised DOE Acquisition Guide Chapter 7 1.1 Headquarters Business Clearance Process (wrong document under this file name)

    Energy.gov [DOE]

    There was mention in the National Academy of Public Administration (NAPA) report titled "Managing at the Speed of Light - Improving Mission Support Performance" that Departmental procurement personnel don't understand the Business Clearance (BC) process. In an effort to address this issue, each Procurement Director (PD) and Head of Contracting Activity (HCA) was ask to review Acquisition Guide Chapter 7 1.1 Headquarters Business Clearance Process and identify anything that was unclear, as well as recommend changes or ideas which could improve Acquisition Guide Chapter 71.1 and the understanding of the Business Clearance process. Attached is the revised Acquisition Guide Chapter 71.1 (May 20 10) which reflects the comments and suggestions received.

  16. Sundance 2.0 tutorial.

    SciTech Connect

    Long, Kevin R.

    2004-07-01

    Sundance is a system of software components that allows construction of an entire parallel simulator and its derivatives using a high-level symbolic language. With this high-level problem description, it is possible to specify a weak formulation of a PDE and its discretization method in a small amount of user-level code; furthermore, because derivatives are easily available, a simulation in Sundance is immediately suitable for accelerated PDE-constrained optimization algorithms. This paper is a tutorial for setting up and solving linear and nonlinear PDEs in Sundance. With several simple examples, we show how to set up mesh objects, geometric regions for BC application, the weak form of the PDE, and boundary conditions. Each example then illustrates use of an appropriate solver and solution visualization.

  17. Design and construction of pulsed neutron diagnostic system for plasma focus device (SBUPF1)

    SciTech Connect

    Moghadam, Sahar Rajabi; Davani, Fereydoon Abbasi

    2010-07-15

    In this paper, two designs of pulsed neutron counter structure are introduced. To increase the activation counter efficiency, BC-400 plastic scintillator plates along with silver foils are utilized. Rectangular cubic and cylindrical geometries for activation counter cell are modeled using MCNP4C code. Eventually, an optimum length of 14 cm is calculated for the detector cell and optimum numbers of 20 silver foils for rectangular cubic geometry and ten foils for cylindrical geometry have been acquired. Due to the high cost of cutting, polishing of plastics, and etc., the rectangular cubic design is found to be more economical than the other design. In order to examine the functionality and ensure the detector output and corresponding designing, neutron yield of a 2.48 kJ plasma focus device (SBUPF1) in 8 mbar pressure with removal source method for calibration was measured (3.71{+-}0.32)x10{sup 7} neutrons per shot.

  18. Peptides whose uptake by cells is controllable

    DOEpatents

    Jiang, Tao; Tsien, Roger Y.

    2008-10-07

    A generic structure for the peptides of the present invention includes A-X-B-C, where C is a cargo moiety, the B portion includes basic amino acids, X is a cleavable linker sequence, and the A portion includes acidic amino acids. The intact structure is not significantly taken up by cells; however, upon extracellular cleavage of X, the B-C portion is taken up, delivering the cargo to targeted cells. Cargo may be, for example, a contrast agent for diagnostic imaging, a chemotherapeutic drug, or a radiation-sensitizer for therapy. Cleavage of X allows separation of A from B, unmasking the normal ability of the basic amino acids in B to drag cargo C into cells near the cleavage event. X is cleaved extracellularly, preferably under physiological conditions. D-amino acids are preferred for the A and B portions, to minimize immunogenicity and nonspecific cleavage by background peptidases or proteases.

  19. Peptides whose uptake by cells is controllable

    DOEpatents

    Jiang, Tao; Tsien, Roger Y

    2014-02-04

    A generic structure for the peptides of the present invention includes A-X-B-C, where C is a cargo moiety, the B portion includes basic amino acids, X is a cleavable linker sequence, and the A portion includes acidic amino acids. The intact structure is not significantly taken up by cells; however, upon extracellular cleavage of X, the B-C portion is taken up, delivering the cargo to targeted cells. Cargo may be, for example, a contrast agent for diagnostic imaging, a chemotherapeutic drug, or a radiation-sensitizer for therapy. Cleavage of X allows separation of A from B, unmasking the normal ability of the basic amino acids in B to drag cargo C into cells near the cleavage event. X is cleaved extracellularly, preferably under physiological conditions. D-amino acids are preferred for the A and B portions, to minimize immunogenicity and nonspecific cleavage by background peptidases or proteases.

  20. Analytical description of the Jc(B) dependence of high Tc superconducting thin films in small perpendicular fields

    SciTech Connect

    Hanisch, Jens; Grilli, Francesco; Holzapfel, Bernhard

    2008-01-01

    The field dependencies of J{sub c} of YBa{sub 2}Cu{sub 3}O{sub 7-{delta}} based high-temperature superconducting thin films are measured in fine steps for B||c in a wide temperature range. It is found that J{sub c}(B) of all samples can be described by a generalization of Kim's critical state model with two additional variables. At very low fields, a plateau of constant J{sub c} is observed, for which two possible reasons are discussed - self-field effects and a strong single-vortex pinning mechanism. Around 1 T we identified a small 'peak' which may be responsible for ultralow experimental {alpha} values in high-quality samples.

  1. Small angle neutron scattering as fingerprinting of ancient potteries from Sicily (Southern Italy)

    SciTech Connect

    Barone, G.; Mazzoleni, P.; Crupi, V.; Majolino, D.; Venuti, V.; Teixeira, J.

    2009-09-01

    Small angle neutron scattering measurements have been carried out in order to investigate, in microdestructive way, the mesoscopic structure of a variety of potteries of relevance to cultural heritage coming from different Sicilian (Southern Italy) archeological sites belonging to the 'Strait of Messina' area and dated back to 7th-3rd century B.C. Data have been compared with the mesoscopic parameters extracted for two series of clayey sediments typical of the Strait of Messina area and fired under controlled conditions. The observed agreement between the features of reference and archeological samples allowed us to estimate the maximum firing temperature of the latter. Information on the pore sizes was obtained by the use of the concept of fractal surface, and compared with porosimetry results.

  2. Fast beam studies of free radical photodissociation

    SciTech Connect

    Neumark, D.M.

    1993-12-01

    The authors have developed a novel technique for studying the photodissociation spectroscopy and dynamics of free radicals. In these experiments, radicals are generated by laser photodetachment of a fast (6-8 keV) mass-selected negative ion beam. The resulting radicals are photodissociated with a second laser, and the photofragments are collected and detected with high efficiency using a microchannel plate detector. The overall process is: ABC{sup -} {yields} ABC + e{sup -} {yields} A + BC, AB + C. Two types of fragment detection schemes are used. To map out the photodissociation cross-section of the radical, the photodissociation laser is scanned and the total photofragment yield is measured as a function of wavelength. In other experiments, the photodissociation frequency is fixed and the photofragment masses, kinetic energy release, and scattering angle is determined for each photodissociation event.

  3. Influence of potentially lethal temperature and food on the behavior of juvenile chum salmon, Oncorhynchus keta, under simulated marine conditions. Canadian data report of fisheries and aquatic sciences Number 1040

    SciTech Connect

    Korstrom, J.S.

    1998-12-31

    This is one of a series of reports that describe results of field and laboratory studies on the effect of heated sea water on juvenile chum salmon. The studies were initiated in response to potential increases in the thermal discharge from BC Hydro`s Burrard Generating Station into the marine waters of Port Moody Arm, Burrard Inlet. The report presents results of the first of two 1997 studies, in which the behaviour of chum salmon in response to heated sea water was investigated in the laboratory using a water column simulator that mimicked conditions the fish may encounter in Port Moody Arm. The behaviour of the salmon was examined under controlled conditions during a changing thermal regime and under thermally stratified conditions. The response of the fish to food, their swimming, and school positions were quantified in relation to experimental conditions.

  4. Vertical distribution of juvenile chum salmon, Oncorhynchus keta, in relation to a thermal discharge into Port Moody Arm, Burrard Inlet, British Columbia. Canadian technical report of fisheries and aquatic sciences Number 2235

    SciTech Connect

    Birtwell, I.K.

    1998-12-31

    This is one of a series of reports that describe results of field and laboratory studies on the effect of heated sea water on juvenile chum salmon. The studies were initiated in response to potential increases in the thermal discharge from BC Hydro`s Burrard Generating Station into the marine waters of Port Moody Arm, Burrard Inlet. The report presents results of the second of two 1997 studies, in which preference/avoidance cages in Port Moody Arm were used to examine the vertical distribution of chum salmon at a reference location and at sites 70, 250, and 1,200 metres from the heated cooling water discharge. The results were related to the ambient aquatic conditions to reveal differences or similarities in the vertical distribution of salmon with proximity to discharge location, and to identify variables that accounted for these changes.

  5. Anomalous magnetic structure and spin dynamics in magnetoelectric LiFePO4

    SciTech Connect

    Toft-Petersen, Rasmus; Reehuis, Manfred; Jensen, Thomas B. S.; Andersen, Niels H.; Li, Jiying; Le, Manh Duc; Laver, Mark; Niedermayer, Christof; Klemke, Bastian; Lefmann, Kim; Vaknin, David

    2015-07-06

    We report significant details of the magnetic structure and spin dynamics of LiFePO4 obtained by single-crystal neutron scattering. Our results confirm a previously reported collinear rotation of the spins away from the principal b axis, and they determine that the rotation is toward the a axis. In addition, we find a significant spin-canting component along c. Furthermore, the possible causes of these components are discussed, and their significance for the magnetoelectric effect is analyzed. Inelastic neutron scattering along the three principal directions reveals a highly anisotropic hard plane consistent with earlier susceptibility measurements. While using a spin Hamiltonian, we show that the spin dimensionality is intermediate between XY- and Ising-like, with an easy b axis and a hard c axis. As a result, it is shown that both next-nearest neighbor exchange couplings in the bc plane are in competition with the strongest nearest neighbor coupling.

  6. Small-angle fragmentation of carbon ions at 0.6 GeV/n. A comparison with models of ion-ion interactions

    DOE PAGES [OSTI]

    Krutenkova, Anna P.; Abramov, B. M.; Alekseev, P. N.; Borodin, Yu. A.; Bulychjov, S. A.; Dukhovskoy, I. A.; Khanov, A. I.; Kulikov, V. V.; Martemianov, M. A.; Mashnik, Stepan Georgievich; et al

    2015-05-29

    The momentum distributions of hydrogen and helium isotopes from 12C fragmentation at 3.5° were measured at 0.6 GeV/nucleon in the FRAGM experiment at ITEP TWA heavy ion accelerator. The fragments were selected by correlated time of flight and dE/dx measurements with a magnetic spectrometer with scintillation counters. The main attention was drawn to the high momentum region where the fragment velocity exceeds the velocity of the projectile nucleus. The momentum spectra of fragments span the region of the fragmentation peak as well as the cumulative region. Moreover, the differential cross sections cover six orders of magnitude. The distributions measured aremore » compared to the predictions of three ion-ion interaction models: BC, QMD and LAQGSM03.03. The kinetic energy spectra of fragments in the projectile rest frame have an exponential shape with two temperatures, being defined by their slope parameters.« less

  7. Impact of Different Economic Performance Metrics on the Perceived Value of Solar Photovoltaics

    SciTech Connect

    Drury, E.; Denholm, P.; Margolis, R.

    2011-10-01

    Photovoltaic (PV) systems are installed by several types of market participants, ranging from residential customers to large-scale project developers and utilities. Each type of market participant frequently uses a different economic performance metric to characterize PV value because they are looking for different types of returns from a PV investment. This report finds that different economic performance metrics frequently show different price thresholds for when a PV investment becomes profitable or attractive. Several project parameters, such as financing terms, can have a significant impact on some metrics [e.g., internal rate of return (IRR), net present value (NPV), and benefit-to-cost (B/C) ratio] while having a minimal impact on other metrics (e.g., simple payback time). As such, the choice of economic performance metric by different customer types can significantly shape each customer's perception of PV investment value and ultimately their adoption decision.

  8. The Pathogenomic Sequence Analysis of B. cereus and B. Thuringiensis isolates closely related to Bacillus anthracis

    SciTech Connect

    Han, C S; Xie, G; Challacombe, J F; Altherr, M R; Bhotika, S S; Bruce, D; Campbell, C S; Campbell, M L; Chen, J; Chertkov, O; Cleland, C; Dimitrijevic-Bussod, M; Doggett, N A; Fawcett, J J; Glavina, T; Goodwin, L A; Hill, K K; Hitchcock, P; Jackson, P J; Keim, P; Kewalramani, A R; Longmire, J; Lucas, S; Malfatti, S; McMurry, K; Meincke, L J; Misra, M; Moseman, B L; Mundt, M; Munk, A C; Okinaka, R T; Parson-Quintana, B; Reilly, L P; Richardson, P; Robinson, D L; Rubin, E; Saunders, E; Tapia, R; Tesmer, J G; Thayer, N; Thompson, L S; Tice, H; Ticknor, L O; Wills, P L; Gilna, P; Brettin, T S

    2005-10-12

    The sequencing and analysis of two close relatives of Bacillus anthracis are reported. AFLP analysis of over 300 isolates of B. cereus, B. thuringiensis and B. anthracis identified two isolates as being very closely related to B. anthracis. One, a B. cereus, BcE33L, was isolated from a zebra carcass in Nambia; the second, a B. thuringiensis, 97-27, was isolated from a necrotic human wound. The B. cereus appears to be the closest anthracis relative sequenced to date. A core genome of over 3,900 genes was compiled for the Bacillus cereus group, including B anthracis. Comparative analysis of these two genomes with other members of the B. cereus group provides insight into the evolutionary relationships among these organisms. Evidence is presented that differential regulation modulates virulence, rather than simple acquisition of virulence factors. These genome sequences provide insight into the molecular mechanisms contributing to the host range and virulence of this group of organisms.

  9. The Pathogenomic Sequence Analysis of B. cereus and B.thuringiensis Isolates Closely Related to Bacillus anthracis

    SciTech Connect

    Han, Cliff S.; Xie, Gary; Challacombe, Jean F.; Altherr, MichaelR.; Smriti, B.; Bruce, David; Campbell, Connie S.; Campbell, Mary L.; Chen, Jin; Chertkov, Olga; Cleland, Cathy; Dimitrijevic-Bussod, M.; Doggett, Norman A.; Fawcett, John J.; Glavina, Tijana; Goodwin, Lynne A.; Hill, Karen K.; Hitchcock, Penny; Jackson, Paul J.; Keim, Paul; Kewalramani, Avinash Ramesh; Longmire, Jon; Lucas, Susan; Malfatti,Stephanie; McMurry, Kim; Meincke, Linda J.; Misra, Monica; Moseman,Bernice L.; Mundt, Mark; Munk, A. Christine; Okinaka, Richard T.; Parson-Quintana, B.; Reilly, Lee P.; Richardson, Paul; Robinson, DonnaL.; Rubin, Eddy; Saunders, Elizabeth; Tapia, Roxanne; Tesmer, Judith G.; Thayer, Nina; Thompson, Linda S.; Tice, Hope; Ticknor, Lawrence O.; Wills, Patti L.; Gilna, Payl; Brettin, Thomas S.

    2005-08-18

    The sequencing and analysis of two close relatives of Bacillus anthracis are reported. AFLP analysis of over 300 isolates of B.cereus, B. thuringiensis and B. anthracis identified two isolates as being very closely related to B. anthracis. One, a B. cereus, BcE33L, was isolated from a zebra carcass in Nambia; the second, a B. thuringiensis, 97-27, was isolated from a necrotic human wound. The B. cereus appears to be the closest anthracis relative sequenced to date. A core genome of over 3,900 genes was compiled for the Bacillus cereus group, including Banthracis. Comparative analysis of these two genomes with other members of the B. cereus group provides insight into the evolutionary relationships among these organisms. Evidence is presented that differential regulation modulates virulence, rather than simple acquisition of virulence factors. These genome sequences provide insight into the molecular mechanisms contributing to the host range and virulence of this group of organisms.

  10. Stable local oscillator microcircuit.

    SciTech Connect

    Brocato, Robert Wesley

    2006-10-01

    This report gives a description of the development of a Stable Local Oscillator (StaLO) Microcircuit. The StaLO accepts a 100MHz input signal and produces output signals at 1.2, 3.3, and 3.6 GHz. The circuit is built as a multi-chip module (MCM), since it makes use of integrated circuit technologies in silicon and lithium niobate as well as discrete passive components. The StaLO uses a comb generator followed by surface acoustic wave (SAW) filters. The comb generator creates a set of harmonic components of the 100MHz input signal. The SAW filters are narrow bandpass filters that are used to select the desired component and reject all others. The resulting circuit has very low sideband power levels and low phase noise (both less than -40dBc) that is limited primarily by the phase noise level of the input signal.

  11. Peptides whose uptake by cells is controllable

    DOEpatents

    Jiang, Tao; Olson, Emilia S.; Whitney, Michael; Tsien, Roger

    2011-07-26

    A generic structure for the peptides of the present invention includes A-X-B-C, where C is a cargo moiety, the B portion includes basic amino acids, X is a cleavable linker sequence, and the A portion includes acidic amino acids. The intact structure is not significantly taken up by cells; however, upon extracellular cleavage of X, the B-C portion is taken up, delivering the cargo to targeted cells. Cargo may be, for example, a contrast agent for diagnostic imaging, a chemotherapeutic drug, or a radiation-sensitizer for therapy. X may be cleaved extracellularly or intracellularly. The molecules of the present invention may be linear, cyclic, branched, or have a mixed structure.

  12. Peptides whose uptake by cells is controllable

    DOEpatents

    Jiang, Tao; Olson, Emilia S.; Whitney, Michael; Tsien, Roger

    2015-07-07

    A generic structure for the peptides of the present invention includes A-X-B-C, where C is a cargo moiety, the B portion includes basic amino acids, X is a cleavable linker sequence, and the A portion includes acidic amino acids. The intact structure is not significantly taken up by cells; however, upon extracellular cleavage of X, the B-C portion is taken up, delivering the cargo to targeted cells. Cargo may be, for example, a contrast agent for diagnostic imaging, a chemotherapeutic drug, or a radiation-sensitizer for therapy. X may be cleaved extracellularly or intracellularly. The molecules of the present invention may be linear, cyclic, branched, or have a mixed structure.

  13. Library Resources for Bac End Sequencing. Final Technical Report

    SciTech Connect

    Pieter J. de Jong

    2000-10-01

    Studies directed towards the specific aims outlined for this research award are summarized. The RPCI II Human Bac Library has been expanded by the addition of 6.9-fold genomic coverage. This segment has been generated from a MBOI partial digest of the same anonymous donor DNA used for the rest of the library. A new cloning vector, pTARBAC1, has been constructed and used in the construction of RPCI-II segment 5. This new cloning vector provides a new strategy in identifying targeted genomic regions and will greatly facilitate a large-scale analysis for positional cloning. A new maleCS7BC/6J mouse BAC library has been constructed. RPCI-23 contain 576 plates (approx 210,000 clones) and represents approximately 11-fold coverage of the mouse genome.

  14. EXECUTIVE SUMMARY OF STATE DATA RELATED TO ABANDONED CENTRALIZED AND COMMERCIAL DRILLING-FLUID DISPOSAL SITES IN LOUISIANA, NEW MEXICO, OKLAHOMA, AND TEXAS

    SciTech Connect

    H. Seay Nance

    2003-03-01

    This 2003 Spring Semi-Annual Report contains a summary of the Final Technical Report being prepared for the Soil Remediation Requirements at Commercial and Centralized Drilling-Fluid Disposal (CCDD) Sites project funded by the United States Department of Energy under DOE Award No. DE-AC26-99BC15225. The summary describes (1) the objectives of the investigation, (2) a rationale and methodology of the investigation, (3) sources of data, assessment of data quality, and data availability, (4) examples of well documented centralized and commercial drilling-fluid disposal (CCDD) sites and other sites where drilling fluid was disposed of, and (5) examples of abandoned sites and measures undertaken for their assessment and remediation. The report also includes most of the figures, tables, and appendices that will be included in the final report.

  15. Bat Surveys of Retired Facilitiies Scheduled for Demolition by Washington Closure Hanford

    SciTech Connect

    Gano, K. A.; Lucas, J. G.; Lindsey, C. T.

    2011-06-30

    This project was conducted to evaluate buildings and facilities remaining in the Washington Closure Hanford (WCH) deactivation, decontamination, decommissioning, and demolition schedule for bat roost sites. The project began in spring of 2009 and was concluded in spring of 2011. A total of 196 buildings and facilities were evaluated for the presence of bat roosting sites. The schedule for the project was prioritized to accommodate the demolition schedule. As the surveys were completed, the results were provided to the project managers to facilitate planning and project completion. The surveys took place in the 300 Area, 400 Area, 100-H, 100-D, 100-N, and 100-B/C Area. This report is the culmination of all the bat surveys and summarizes the findings by area and includes recommended mitigation actions where bat roosts were found.

  16. MiniBooNE darkmatter collaboration

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    MiniBooNE-DM Collaboration A.A. Aguilar-Arevalo,1 B. Batell,2 B.C. Brown,3 R. Carr,4 R. Cooper,5 P. deNiverville,6 R. Dharmapalan,7 R. Ford,3 F.G. Garcia,3 G. T. Garvey,8 J. Grange,9 W. Huelsnitz,8 I. L. de Icaza Astiz,1 R.A. Johnson,10 G. Karagiorgi,4 T. Katori,11 T. Kobilarcik,3 W. Ketchum,8 Q. Liu,8 W.C. Louis,8 C. Mariani,12 W. Marsh,3 D. McKeen,13 C.D. Moore,3 G.B. Mills,8 J. Mirabal,8 P. Nienaber,14 Z. Pavlovic,8 D. Perevalov,3 M. Pospelov,6 H. Ray,9 A. Ritz,6 B.P. Roe,15 M.H. Shaevitz,4

  17. Peptides whose uptake by cells is controllable

    DOEpatents

    Jiang, Tao; Tsien, Roger Y.

    2012-02-07

    A generic structure for the peptides of the present invention includes A-X-B-C, where C is a cargo moiety, the B portion includes basic amino acids, X is a cleavable linker sequence, and the A portion includes acidic amino acids. The intact structure is not significantly taken up by cells; however, upon extracellular cleavage of X, the B-C portion is taken up, delivering the cargo to targeted cells. Cargo may be, for example, a contrast agent for diagnostic imaging, a chemotherapeutic drug, or a radiation-sensitizer for therapy. Cleavage of X allows separation of A from B, unmasking the normal ability of the basic amino acids in B to drag cargo C into cells near the cleavage event. X is cleaved extracellularly, preferably under physiological conditions. D-amino acids are preferred for the A and B portions, to minimize immunogenicity and nonspecific cleavage by background peptidases or proteases.

  18. SOLICITATION, OFFER AND AWARD

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    SOLICITATION, OFFER AND AWARD !, TI11S COllT!<'}.l~f l8 AW.TEO ORDER Vr;OER O?>.$ (IS CfR TCO) fiATJtiG I 3 ~-DATE 1SSli[O ] Ii. RE,QU:siilO!i'f'lJRCl-'ASE !llcl/BC.R 15F:M002922 EMCHC U.S. Dep:1rl".!n0.nt of Energy EM Consoliciat.ed Businnss CeriLer 250 E:. Sth Str~at, S11ite 500 Cincinnnl.i Ofl 4S20~ - - - - - - - - - - - - - - - - - - - - - - - - - - - - ---------- NOTE: fft1U]*4 b!d Ut(j!1\lo~1 *0Ntf"3od ''1lff£10('mol'1"bj.j*and._'"""'~"c'°~* - - -

  19. The Utilization of the Microflora Indigenous to and Present in Oil-Bearing Formations to Selectively Plug the More Porous Zones Thereby Increasing Oil Recovery During Waterflooding

    SciTech Connect

    Brown, Lewis R.; Byrnes, Martin J.; Stephens, James O.; Vadie, Alex A.

    1999-07-01

    This project was designed to demonstrate that a microbially enhanced oil recovery process (MEOR), developed in part under DOE Contract No. DE-AC22-90BC14665, will increase oil recovery from fluvial dominated deltaic oil reservoirs. The process involves stimulating the in-situ indigenous microbial population in the reservoir to grow in the more permeable zones, thus diverting flow to other areas of the reservoir, thereby increasing the effectiveness of the waterflood. This five and a half year project is divided into three phases, Phase I, Planning and Analysis (9 months), Phase II, Implementation (45 months), and Phase III, Technology Transfer (12 months). Phase I was completed and reported in the first annual report. This fifth annual report covers the completion of Phase II and the first six months of Phase III.

  20. Fuel Tables.indd

    Gasoline and Diesel Fuel Update

    0: Total Energy Consumption, Price, and Expenditure Estimates, 2014 State Consumption Prices Expenditures a Residential b Commercial b Industrial b,c Transportation Total c Residential Commercial Industrial Transportation Total Residential Commercial Industrial d Transportation Total d Trillion Btu Dollars per Million Btu Million Dollars Alabama 378.7 262.4 848.4 468.7 1,958.2 28.34 26.06 8.74 25.94 18.64 4,535.1 2,943.4 5,006.2 11,661.7 24,146.5 Alaska 47.8 63.2 329.0 163.0 603.1 23.25 19.78