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  1. ARM - NSA Barrow Facility

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

    Barrow Facility NSA Related Links Facilities and Instruments Barrow Atqasuk Oliktok Point (AMF3) ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site NSA...

  2. ARM - NSA Science

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

    AlaskaNSA Science NSA Related Links Virtual Tour Facilities and Instruments Barrow Atqasuk Oliktok Point (AMF3) ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site NSA Fact Sheet Images Information for Guest Scientists Contacts NSA Science Scientific objectives for the NSA/AAO site are provided below: Provide the comprehensive data sets necessary to develop and test continually improved algorithms for GCMs to describe radiative transfer and cloud processes at high

  3. ARM - NSA Operations

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

    AlaskaNSA Operations NSA Related Links Virtual Tour Facilities and Instruments Barrow Atqasuk Oliktok Point (AMF3) ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site NSA Fact Sheet Images Information for Guest Scientists Contacts NSA Operations Barrow Facility Instrumentation at the Barrow facility operates 7 days a week, 24 hours a day, year around. The instrumentation is routinely maintained using an extensive "daily rounds" checklist 5 days a week,

  4. ARM - NSA Contacts

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

    Contacts NSA Related Links Virtual Tour Facilities and Instruments Barrow Atqasuk Oliktok Point (AMF3) ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site NSA Fact Sheet Images Information for Guest Scientists Contacts NSA Contacts Site Manager - Mark Ivey, Sandia National Laboratories Barrow Site Manager - Dan Lucero, Sandia National Laboratories Barrow Site Facilities Manager - Walter Brower, UIC Science, LLC, Cell: 907.878.4780 Rapid Response Team Manager - Martin

  5. ARM - Visiting the NSA

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

    AlaskaVisiting the NSA NSA Related Links Virtual Tour Facilities and Instruments Barrow Atqasuk Oliktok Point (AMF3) ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site NSA Fact Sheet Images Information for Guest Scientists Contacts Visiting the NSA View a custom Google map with driving directions to the Barrow site. Zoom in on the map for more detail. View a custom Google map with driving directions to the Barrow site. Zoom in on the map for more detail. Safety

  6. ARM - PI Product - NSA AERI Hatch Correction Data Set

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

    ProductsNSA AERI Hatch Correction Data Set 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 PI Product : NSA AERI Hatch Correction Data Set From 2000-2008, the NSA AERI hatch was determined to be indicated as open too frequently. Analysis suggests that the hatch was actually opening and closing properly but that its status was not being correctly reported by the hatch controller to the datastream. An algorithm was

  7. NSA Broadband Instrument Study: Update

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

    Broadband Instrument Study: Update PI: Scott Richardson, NSA SST Co-Is: Chuck Long, Tom Stoffel, Ells Dutton, Joe Michalsky, Jeff Zirzow... Background * NSA last site where Diffuse ...

  8. NSA Atqasuk Facility

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

    Inactive NSA Related Links Virtual Tour Facilities and Instruments Barrow Atqasuk Oliktok Point (AMF3) ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site NSA Fact Sheet Images Information for Guest Scientists Contacts NSA Atqasuk Facility-Inactive Location: 70° 28' 19.11" N, 157° 24' 28.99" W Altitude: 20 meters The Atqasuk facility, which was part of the larger ARM Climate Research Facility (ARM) North Slope of Alaska site, was installed the summer of

  9. NSA Barrow Facility

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

    Barrow Facility NSA Related Links Virtual Tour Facilities and Instruments Barrow Atqasuk Oliktok Point (AMF3) ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site NSA Fact Sheet Images Information for Guest Scientists Contacts NSA Barrow Facility Location: 71° 19' 23.73" N, 156° 36' 56.70" W Altitude: 8 meters The Barrow facility was dedicated in July 1997 and chosen because the Arctic is particularly sensitive to climate changes. Barrow is located at the

  10. ARM - NSA Calendar

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

    Calendar NSA Related Links Virtual Tour Facilities and Instruments Barrow Atqasuk Oliktok Point (AMF3) ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site NSA Fact Sheet Images Information for Guest Scientists Contacts NSA Calendar Claire Moffett/Baylor Check on equipment already on site, deliver new filters for sampling, and set up aethalometer 2016.09.20 » 2016.09.22 Danny Donald/SNL Safety observation 2016.09.08 » 2016.09.09 Dave Cook/ANL Point ECOR/SEBS

  11. ARM - Field Campaign - NSA Scanning Radar IOP

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

    Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : NSA Scanning Radar IOP ... Low-level mixed-phase clouds, frequently present over the North Slope of Alaska (NSA) ...

  12. ARM/NSA Vehicle Use Policy

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

    Slope of AlaskaAdjacent Arctic Ocean NSA Tip Tower Lowering Procedure Procedure ... NSAttlRev6.doc 1 ACRFNSAAAO Revision 6 Tip Tower Lowering Procedure November 2006 ...

  13. ARM - NSA Atqasuk Facility-Inactive

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

    Atqasuk Facility-Inactive NSA Related Links Virtual Tour Facilities and Instruments Barrow Atqasuk Oliktok Point (AMF3) ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site NSA Fact Sheet Images Information for Guest Scientists Contacts NSA Atqasuk Facility-Inactive Location: 70° 28' 19.11" N, 157° 24' 28.99" W Altitude: 20 meters The Atqasuk facility, which was part of the larger ARM Climate Research Facility (ARM) North Slope of Alaska site, was

  14. Browse A to Z | Department of Energy

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

    A to Z Browse A to Z Browse OLWD services alphabetically Learning & Workforce Development Browse A to Z

  15. NSA AERI Hatch Correction Data Set

    SciTech Connect (OSTI)

    Turner, David

    2012-03-23

    From 2000-2008, the NSA AERI hatch was determined to be indicated as open too frequently. Analysis suggests that the hatch was actually opening and closing properly but that its status was not being correctly reported by the hatch controller to the datastream. An algorithm was written to determine the hatch status from the observed

  16. ARM - Field Campaign - NSA Snow IOP

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

    We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : NSA Snow IOP 2011.10.01 - 2012.05.31 Lead Scientist : Johannes Verlinde For data ...

  17. ARM Quick-looks Database for North Slope Alaska (NSA) sites

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Stamnes, Knut [NSA Site Scientist

    From these pages one can monitor parts of the data acquisition process and access daily data visualizations from the different instruments. These data visualizations are produced in near real time automatically and are called Quick-Looks (QLs). The quick-looks contains unofficial data of unknown quality. Once data is released one can obtain the full data-set from any instrument available, and along with that, a statement about the data quality from the ARM archive. The database provides Quick-looks for the Barrow ACRF site (NSA C1), the Atqasuk ACRF site (NSA C2), or the SHEBA ice campaign of 1997 and 1998. As of 12-17-08, the database had more than 528,000 quick-looks available as data figures and data plots. No password is required for Quick-look access. (Specialized Interface)

  18. Browse by Role | Department of Energy

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

    by Role Browse by Role OLWD_CategoryIcon_Role_500x332.png Role Browse by Role

  19. Derivation of Seasonal Cloud Properties at ARM-NSA from Multispectral...

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

    Derivation of Seasonal Cloud Properties at ARM-NSA from Multispectral MODIS Data D. A. ... over the Atmospheric Radiation Measurement (ARM) North Slope of Alaska (NSA) Barrow site. ...

  20. Naval Support Activity (NSA) in Bethesda Employment Education Fair

    Office of Energy Efficiency and Renewable Energy (EERE)

    Location: NSA Bethesda Fitness Center (Gymnasium, Bldg 17), 8901 Wisconsin Ave., Bethesda, MD 20889Attendees: Donna Friend (HC) and Rauland Sharp (HC)POC: Donna FriendWebsite: http://bit.ly/1yTjTNu

  1. Microsoft PowerPoint - nsa_shippingforminstructions.ppt

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

    existing record (change data or add receive information) requires a login with username and password. At this point in time, we will be limiting this to NSA operations personnel. ...

  2. Attachment C2

    Office of Environmental Management (EM)

    C2 1 RESERVED 2

  3. Radiative Closure Studies at the NSA ACRF Site

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

    Radiative Closure Studies at the NSA ACRF Site Delamere, Jennifer Atmospheric and Environmental Research, Inc. Mlawer, Eli Atmospheric & Environmental Research, Inc. Turner, David University of Wisconsin-Madison Clough, Shepard Atmospheric and Environmental Research Jensen, Michael Brookhaven National Laboratory Miller, Mark Brookhaven National Laboratory Johnson, Karen Brookhaven National Laboratory Troyan, David Brookhaven National Laboratory Shippert, Timothy Pacific Northwest National

  4. DOE Research and Development Accomplishments Database Browse

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

    Database Browse Sorted by: Most Recently Added Sort List By: -------------------- Most Recently Added Title Author Publication Date

  5. Use of ARM/NSA Data to Validate and Improve the Remote Sensing...

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

    ARMNSA Data to Validate and Improve the Remote Sensing Retrieval of Cloud and Surface ... North Slope of Alaska (NSA) through the Atmospheric Radiation Measurement (ARM) Program. ...

  6. Appendix C-2

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

    6, 2012 APPENDIX C - 2 Intellectual Property Provisions For Domestic Small Business, Educational Institutions, and Other Nonprofit Organizations (Research, Development, or Demonstration) The Subcontractor is hereby placed on notice that the contracting party to this subcontract is the Alliance for Sustainable Energy, LLC, in its capacity as the Managing and Operating Contractor for the National Renewable Energy Laboratory (NREL) under U.S. Department of Energy Contract No. DE-AC36-08GO28308. All

  7. Browse Designations - DOE Directives, Delegations, and Requirements

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

    Browse Designations Current By Functional Area By Position Designations Assignments Rescinded by Diane Johnson More filters Less filters Current search Δ Hide filters ∇ Show filters (0) [X] Remove all Issue Date Start date End date 4215e3a365085280c76e65d2bb255c3a

  8. Browse Success Stories - Energy Innovation Portal

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

    Stories » All Site Map Printable Version Share this resource About Search Categories (15) Advanced Materials Biomass and Biofuels Building Energy Efficiency Electricity Transmission Energy Analysis Energy Storage Geothermal Hydrogen and Fuel Cell Hydropower, Wave and Tidal Industrial Technologies Solar Photovoltaic Solar Thermal Startup America Vehicles and Fuels Wind Energy Partners (27) Visual Patent Search Success Stories Graphic of a full-grown tree with many leaves. Browse Success Stories

  9. Browsing a wealth of millimeter-wavelength doppler spectra data...

    Office of Scientific and Technical Information (OSTI)

    doppler spectra data Citation Details In-Document Search Title: Browsing a wealth of millimeter-wavelength doppler spectra data The ARM Climate Research Facility ...

  10. Analysis of Selected Radiosonde Data from the ARM/NSA Site

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

    Analysis of Selected Radiosonde Data from the ARM/NSA Site B. Petracca, H. W. Church, and B. D. Zak Sandia National Laboratories Albuquerque, New Mexico R. Storvold and C. Marty Geophysical Institute University of Alaska Fairbanks, Alaska B. M. Lesht Argonne National Laboratories Argonne, Illinois Introduction The purpose of this study was to analyze differences in temperature and relative humidity (RH) profiles obtained from near-simultaneous radiosonde soundings made from different locations

  11. Characterization of Surface Albedo Over the ARM SGP CART and the NSA

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

    Characterization of Surface Albedo Over the ARM SGP CART and the NSA Z. Li and M. C. Cribb Earth System Science Interdisciplinary Center University of Maryland College Park, Maryland A. P. Trishchenko and Y. Luo Canada Centre for Remote Sensing Ottawa, Ontario, Canada Introduction Surface albedo is needed for satellite remote sensing of the surface radiation budget and for climate modelling. Determination of areal-mean surface albedo is challenging. Over the Southern Great Plains (SGP) site, a

  12. Atmospheric Radiation Measurement (ARM) Data from the North Slope Alaska (NSA) Site

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    The Atmospheric Radiation Measurement (ARM) Program is the largest global change research program supported by the U.S. Department of Energy. The primary goal of the ARM Program is to improve the treatment of cloud and radiation physics in global climate models in order to improve the climate simulation capabilities of these models. To achieve this goal, ARM scientists and researchers around the world use continuous data obtained through the ARM Climate Research Facility. ARM maintains four major, permanent sites for data collection and deploys the ARM Mobile Facility to other sites as determined. The North Slope of Alaska (NSA) site is a permanent site providing data about cloud and radiative processes at high latitudes. These data are being used to refine models and parameterizations as they relate to the Arctic. Centered at Barrow and extending to the south (to the vicinity of Atqasuk), west (to the vicinity of Wainwright), and east (towards Oliktok), the NSA site has become a focal point for atmospheric and ecological research activity on the North Slope. Approximately 300,000 NSA data sets from 1993 to the present reside in the ARM Archive at http://www.archive.arm.gov/. Users will need to register for a password, but all files are then free for viewing or downloading. The ARM Archive physically resides at the Oak Ridge National Laboratory.

  13. Nuclear science abstracts (NSA) database 1948--1974 (on the Internet)

    SciTech Connect (OSTI)

    1999-02-01

    Nuclear Science Abstracts (NSA) is a comprehensive abstract and index collection of the International Nuclear Science and Technology literature for the period 1948 through 1976. Included are scientific and technical reports of the US Atomic Energy Commission, US Energy Research and Development Administration and its contractors, other agencies, universities, and industrial and research organizations. Coverage of the literature since 1976 is provided by Energy Science and Technology Database. Approximately 25% of the records in the file contain abstracts. These are from the following volumes of the print Nuclear Science Abstracts: Volumes 12--18, Volume 29, and Volume 33. The database contains over 900,000 bibliographic records. All aspects of nuclear science and technology are covered, including: Biomedical Sciences; Metals, Ceramics, and Other Materials; Chemistry; Nuclear Materials and Waste Management; Environmental and Earth Sciences; Particle Accelerators; Engineering; Physics; Fusion Energy; Radiation Effects; Instrumentation; Reactor Technology; Isotope and Radiation Source Technology. The database includes all records contained in Volume 1 (1948) through Volume 33 (1976) of the printed version of Nuclear Science Abstracts (NSA). This worldwide coverage includes books, conference proceedings, papers, patents, dissertations, engineering drawings, and journal literature. This database is now available for searching through the GOV. Research Center (GRC) service. GRC is a single online web-based search service to well known Government databases. Featuring powerful search and retrieval software, GRC is an important research tool. The GRC web site is at http://grc.ntis.gov.

  14. ARM - Contacts

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

    Contacts Related Links RHUBC Home NSA Home ARM Data Discovery Browse Data Experiment ... instrument mentor for the GVR Mark Ivey, NSA site manager Hans Verlinde, NSA site ...

  15. Browse Draft Directives - DOE Directives, Delegations, and Requirements

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

    Browse Draft Directives Current Draft Archives by Website Administrator More filters Less filters Directive Type Order Guide Manual Policy Notice Cancellation Notice HQ Order Sec of Energy Notice Justification Memorandum Certification Memo 0 Series Series All 0000 Subject Classification 100 Leadership/Management Planning 200 Information and Analysis 300 Human Resources 400 Work Processes 500 Business and Support Services 1100 Org. Authorities, Functions and Internal Relationships 1200 External

  16. C2 Biofuels | Open Energy Information

    Open Energy Info (EERE)

    Jump to: navigation, search Name: C2 Biofuels Place: Atlanta, Georgia Product: Ethanol production from cellulose. Coordinates: 33.748315, -84.391109 Show Map Loading...

  17. The North Slope of Alaska and Adjacent Arctic Ocean (NSA/AAO) cart site begins operation: Collaboration with SHEBA and FIRE

    SciTech Connect (OSTI)

    Zak, D. B.; Church, H.; Ivey, M.; Yellowhorse, L.; Zirzow, J.; Widener, K. B.; Rhodes, P.; Turney, C.; Koontz, A.; Stamnes, K.; Storvold, R.; Eide, H. A.; Utley, P.; Eagan, R.; Cook, D.; Hart, D.; Wesely, M.

    2000-04-04

    Since the 1997 Atmospheric Radiation Measurement (ARM) Science Team Meeting, the North Slope of Alaska and Adjacent Arctic Ocean (NSA/AAO) Cloud and Radiation Testbed (CART) site has come into being. Much has happened even since the 1998 Science Team Meeting at which this paper was presented. To maximize its usefulness, this paper has been updated to include developments through July 1998.

  18. Electronic structure of U2PtC2 and U2RhC2

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Ronning, F.; Zhu, J. -X.

    2015-03-18

    In this study, we present density functional theory calculations within the generalized gradient approximation of U2RhC2 and U2PtC2. We find the calculated density of states are significantly less than that measured by specific heat indicating the need for electronic correlations. The mass enhancement found for U2PtC2 is m*/mband ≈ 4.

  19. PROGRESS REPORT OF FY 2004 ACTIVITIES: IMPROVED WATER VAPOR AND CLOUD RETRIEVALS AT THE NSA/AAO

    SciTech Connect (OSTI)

    E. R. Westwater; V. V. Leuskiy; M. Klein; A. J. Gasiewski; and J. A. Shaw

    2004-11-01

    The basic goals of the research are to develop and test algorithms and deploy instruments that improve measurements of water vapor, cloud liquid, and cloud coverage, with a focus on the Arctic conditions of cold temperatures and low concentrations of water vapor. The importance of accurate measurements of column amounts of water vapor and cloud liquid has been well documented by scientists within the Atmospheric Radiation Measurement Program. Although several technologies have been investigated to measure these column amounts, microwave radiometers (MWR) have been used operationally by the ARM program for passive retrievals of these quantities: precipitable water vapor (PWV) and integrated water liquid (IWL). The technology of PWV and IWL retrievals has advanced steadily since the basic 2-channel MWR was first deployed at ARM CART sites Important advances are the development and refinement of the tipcal calibration method [1,2], and improvement of forward model radiative transfer algorithms [3,4]. However, the concern still remains that current instruments deployed by ARM may be inadequate to measure low amounts of PWV and IWL. In the case of water vapor, this is especially important because of the possibility of scaling and/or quality control of radiosondes by the water amount. Extremely dry conditions, with PWV less than 3 mm, commonly occur in Polar Regions during the winter months. Accurate measurements of the PWV during such dry conditions are needed to improve our understanding of the regional radiation energy budgets. The results of a 1999 experiment conducted at the ARM North Slope of Alaska/Adjacent Arctic Ocean (NSA/AAO) site during March of 1999 [5] have shown that the strength associated with the 183 GHz water vapor absorption line makes radiometry in this frequency regime suitable for measuring low amounts of PWV. As a portion of our research, we conducted another millimeter wave radiometric experiment at the NSA/AAO in March-April 2004. This

  20. MultiFacet: A Faceted Interface for Browsing Large Multimedia Collections

    SciTech Connect (OSTI)

    Henry, Michael J.; Hampton, Shawn D.; Endert, Alexander; Roberts, Ian E.; Payne, Deborah A.

    2013-10-31

    Faceted browsing is a common technique for exploring collections where the data can be grouped into a number of pre-defined categories, most often generated from textual metadata. Historically, faceted browsing has been applied to a single data type such as text or image data. However, typical collections contain multiple data types, such as information from web pages that contain text, images, and video. Additionally, when browsing a collection of images and video, facets are often created based on the metadata which may be incomplete, inaccurate, or missing altogether instead of the actual visual content contained within those images and video. In this work we address these limitations by presenting MultiFacet, a faceted browsing interface that supports multiple data types. MultiFacet constructs facets for images and video in a collection from the visual content using computer vision techniques. These visual facets can then be browsed in conjunction with text facets within a single interface to reveal relationships and phenomena within multimedia collections. Additionally, we present a use case based on real-world data, demonstrating the utility of this approach towards browsing a large multimedia data collection.

  1. Using Radar, Lidar and Radiometer Data from NSA and SHEBA to Quantify Cloud Property Effects on the Surface Heat Budget in the Arctic

    SciTech Connect (OSTI)

    Janet Intrieri; Mathhew Shupe

    2005-01-01

    Cloud and radiation data from two distinctly different Arctic areas are analyzed to study the differences between coastal Alaskan and open Arctic Ocean region clouds and their respective influence on the surface radiation budget. The cloud and radiation datasets were obtained from (1) the DOE North Slope of Alaska (NSA) facility in the coastal town of Barrow, Alaska, and (2) the SHEBA field program, which was conducted from an icebreaker frozen in, and drifting with, the sea-ice for one year in the Western Arctic Ocean. Radar, lidar, radiometer, and sounding measurements from both locations were used to produce annual cycles of cloud occurrence and height, atmospheric temperature and humidity, surface longwave and shortwave broadband fluxes, surface albedo, and cloud radiative forcing. In general, both regions revealed a similar annual trend of cloud occurrence fraction with minimum values in winter (60-75%) and maximum values during spring, summer and fall (80-90%). However, the annual average cloud occurrence fraction for SHEBA (76%) was lower than the 6-year average cloud occurrence at NSA (92%). Both Arctic areas also showed similar annual cycle trends of cloud forcing with clouds warming the surface through most of the year and a period of surface cooling during the summer, when cloud shading effects overwhelm cloud greenhouse effects. The greatest difference between the two regions was observed in the magnitude of the cloud cooling effect (i.e., shortwave cloud forcing), which was significantly stronger at NSA and lasted for a longer period of time than at SHEBA. This is predominantly due to the longer and stronger melt season at NSA (i.e., albedo values that are much lower coupled with Sun angles that are somewhat higher) than the melt season observed over the ice pack at SHEBA. Longwave cloud forcing values were comparable between the two sites indicating a general similarity in cloudiness and atmospheric temperature and humidity structure between the two

  2. Measurement of Boundary-Layer Temperature Profiles by a Scanning 5-MM Radiometer During the 1999 Winter NSA/AAO Radiometer Exp

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

    Boundary-Layer Temperature Profiles by a Scanning 5-MM Radiometer During the 1999 Winter NSA/AAO Radiometer Experiment and WVIOP 2000 V. Y. Leuski and E. R. Westwater Cooperative Institute for Research in the Environmental Sciences National Oceanic and Atmospheric Administration Environmental Technology Laboratory University of Colorado Boulder, Colorado Introduction A scanning 5-mm-wavelength radiometer was deployed during two Intensive Operational Periods (IOPs) at the Atmospheric Radiation

  3. Cybersecurity Capability Maturity Model (C2M2) | Department of...

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

    The C2M2 model, which is designed to be used by any organization to enhance its own ... support adoption of the C2M2. If your organization has questions about the C2M2 model or ...

  4. The structure of C2b, a fragment of complement component C2 produced during C3 convertase formation

    SciTech Connect (OSTI)

    Krishnan, Vengadesan; Xu, Yuanyuan; Macon, Kevin; Volanakis, John E.; Narayana, Sthanam V. L.

    2009-03-01

    The crystal structure of C2b has been determined at 1.8 Å resolution, which reveals the arrangement of its three complement control protein (CCP) modules. A model for complement component C2 is presented and its conformational changes during the C3-convertase formation are also discussed. The second component of complement (C2) is a multi-domain serine protease that provides catalytic activity for the C3 and C5 convertases of the classical and lectin pathways of human complement. The formation of these convertases requires the Mg{sup 2+}-dependent binding of C2 to C4b and the subsequent cleavage of C2 by C1s or MASP2, respectively. The crystal structure of full-length C2 is not yet available, although the structure of its C-terminal catalytic segment C2a has been determined. The crystal structure of the N-terminal segment C2b of C2 determined to 1.8 Å resolution presented here reveals the arrangement of its three CCP domains. The domains are arranged differently compared with most other CCP-domain assemblies, but their arrangement is similar to that found in the Ba part of the full-length factor B structure. The crystal structures of C2a, C2b and full-length factor B are used to generate a model for C2 and a discussion of the domain association and possible interactions with C4b during formation of the C4b–C2 complex is presented. The results of this study also suggest that upon cleavage by C1s, C2a domains undergo conformational rotation while bound to C4b and the released C2b domains may remain folded together similar to as observed in the intact protein.

  5. CYBERSECURITY CAPABILITY MATURITY MODEL (C2M2)

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

    CYBERSECURITY CAPABILITY MATURITY MODEL (C2M2) Version 1.1 February 2014 Cybersecurity Capability Maturity Model Version 1.1 i TABLE OF CONTENTS Acknowledgments ........................................................................................................................................ iii 1. Introduction .............................................................................................................................................. 1 1.1 Intended Audience

  6. CYBERSECURITY CAPABILITY MATURITY MODEL (C2M2) FACILITATOR GUIDE

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

    ... sector, which includes the search for, production, ... Worksheet and enter notes. 3.2 Kicking Off the ... a copy of the glossary of terms from Appendix C of the C2M2 ...

  7. Browse OSTIblog Articles by Related Topics | OSTI, US Dept of Energy Office

    Office of Scientific and Technical Information (OSTI)

    of Scientific and Technical Information Browse OSTIblog Articles by Related Topics 1 2 3 7 9 @ A B C D E F G H I J K L M N O P Q R S T U V W X Y 1970s 21st century 3D Printing 70th Anniversary 9/11 @ostigov Accelerated Climate Modeling for Energy accelerator accepted manuscript access accomplishments ACME additive manufacturing adhesive tape administrative interval ADNI Advanced Photon Source Advanced Research Projects Agency-Energy Advanced Scientific Computing Research AEC Aerogels Albert

  8. ARM - Field Campaign - AIRS Validation Soundings Phase IV and...

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

    Validation Soundings Phase IV and V-NSA ARM Data Discovery Browse Data Comments? ... Campaign : AIRS Validation Soundings Phase IV and V-NSA 2005.04.25 - 2006.04.24 Lead ...

  9. Consumer to Grid (C2G) (Smart Grid Project) (Schwarzach, Austria...

    Open Energy Info (EERE)

    Consumer to Grid (C2G) (Smart Grid Project) (Schwarzach, Austria) Jump to: navigation, search Project Name Consumer to Grid (C2G) Country Austria Headquarters Location Schwarzach,...

  10. Consumer to Grid (C2G) (Smart Grid Project) | Open Energy Information

    Open Energy Info (EERE)

    Consumer to Grid (C2G) (Smart Grid Project) Jump to: navigation, search Project Name Consumer to Grid (C2G) Country Austria Headquarters Location Salzburg, Austria Coordinates...

  11. Consumer to Grid (C2G) (Smart Grid Project) (Hallein, Austria...

    Open Energy Info (EERE)

    Consumer to Grid (C2G) (Smart Grid Project) (Hallein, Austria) Jump to: navigation, search Project Name Consumer to Grid (C2G) Country Austria Headquarters Location Hallein,...

  12. ARM - Instruments

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

    Instruments Related Links RHUBC Home NSA Home ARM Data Discovery Browse Data Experiment Planning RHUBC Proposal Abstract Full Proposal (pdf, 420kb) Science Plan (pdf) Operations ...

  13. ARM - Instrument - noaacrn

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

    those considered scientifically relevant. Atmospheric temperature Precipitation Surface skin temperature Locations North Slope Alaska NSA X1 Browse Data External Data (satellites...

  14. ARM - VAP Product - mmcrmode3ge200404141cloth

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

    by this product are those considered scientifically relevant. Cloud base height Radar Doppler Radar reflectivity Vertical velocity Locations North Slope Alaska NSA C1 Browse...

  15. ARM - VAP Product - mmcrmode2ci200712011cloth

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

    by this product are those considered scientifically relevant. Cloud base height Radar Doppler Radar reflectivity Vertical velocity Locations North Slope Alaska NSA C1 Browse...

  16. ARM - VAP Product - mmcrmode1st200404151cloth

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

    by this product are those considered scientifically relevant. Cloud base height Radar Doppler Radar reflectivity Vertical velocity Locations North Slope Alaska NSA C1 Browse...

  17. ARM - VAP Product - mmcrmode3ge200712011cloth

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

    by this product are those considered scientifically relevant. Cloud base height Radar Doppler Radar reflectivity Vertical velocity Locations North Slope Alaska NSA C1 Browse...

  18. ARM - VAP Product - mmcrmode2ci200404141cloth

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

    by this product are those considered scientifically relevant. Cloud base height Radar Doppler Radar reflectivity Vertical velocity Locations North Slope Alaska NSA C1 Browse...

  19. ARM - VAP Product - mmcrmode1bl200712011cloth

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

    by this product are those considered scientifically relevant. Cloud base height Radar Doppler Radar reflectivity Vertical velocity Locations North Slope Alaska NSA C1 Browse...

  20. Failure and Redemption of Multifilter Rotating Shadowband Radiometer (MFRSR)/Normal Incidence Multifilter Radiometer (NIMFR) Cloud Screening: Contrasting Algorithm Performance at Atmospheric Radiation Measurement (ARM) North Slope of Alaska (NSA) and Southern Great Plains (SGP) Sites

    SciTech Connect (OSTI)

    Kassianov, Evgueni I.; Flynn, Connor J.; Koontz, Annette S.; Sivaraman, Chitra; Barnard, James C.

    2013-09-11

    Well-known cloud-screening algorithms, which are designed to remove cloud-contaminated aerosol optical depths (AOD) from AOD measurements, have shown great performance at many middle-to-low latitude sites around the world. However, they may occasionally fail under challenging observational conditions, such as when the sun is low (near the horizon) or when optically thin clouds with small spatial inhomogeneity occur. Such conditions have been observed quite frequently at the high-latitude Atmospheric Radiation Measurement (ARM) North Slope of Alaska (NSA) sites. A slightly modified cloud-screening version of the standard algorithm is proposed here with a focus on the ARM-supported Multifilter Rotating Shadowband Radiometer (MFRSR) and Normal Incidence Multifilter Radiometer (NIMFR) data. The modified version uses approximately the same techniques as the standard algorithm, but it additionally examines the magnitude of the slant-path line of sight transmittance and eliminates points when the observed magnitude is below a specified threshold. Substantial improvement of the multi-year (1999-2012) aerosol product (AOD and its Angstrom exponent) is shown for the NSA sites when the modified version is applied. Moreover, this version reproduces the AOD product at the ARM Southern Great Plains (SGP) site, which was originally generated by the standard cloud-screening algorithms. The proposed minor modification is easy to implement and its application to existing and future cloud-screening algorithms can be particularly beneficial for challenging observational conditions.

  1. Detailed Studies of Hydrocarbon Radicals: C2H Dissociation

    SciTech Connect (OSTI)

    Wittig, Curt

    2014-10-06

    A novel experimental technique was examined whose goal was the ejection of radical species into the gas phase from a platform (film) of cold non-reactive material. The underlying principle was one of photo-initiated heat release in a stratum that lies below a layer of CO2 or a layer of amorphous solid water (ASW) and CO2. A molecular precursor to the radical species of interest is deposited near or on the film's surface, where it can be photo-dissociated. It proved unfeasible to avoid the rampant formation of fissures, as opposed to large "flakes." This led to many interesting results, but resulted in our aborting the scheme as a means of launching cold C2H radical into the gas phase. A journal article resulted that is germane to astrophysics but not combustion chemistry.

  2. Fusion proton diagnostic for the C-2 field reversed configuration

    SciTech Connect (OSTI)

    Magee, R. M. Clary, R.; Korepanov, S.; Smirnov, A.; Garate, E.; Knapp, K.; Tkachev, A.

    2014-11-15

    Measurements of the flux of fusion products from high temperature plasmas provide valuable insights into the ion energy distribution, as the fusion reaction rate is a very sensitive function of ion energy. In C-2, where field reversed configuration plasmas are formed by the collision of two compact toroids and partially sustained by high power neutral beam injection [M. Binderbauer et al., Phys. Rev. Lett. 105, 045003 (2010); M. Tuszewski et al., Phys. Rev. Lett. 108, 255008 (2012)], measurements of DD fusion neutron flux are used to diagnose ion temperature and study fast ion confinement and dynamics. In this paper, we will describe the development of a new 3 MeV proton detector that will complement existing neutron detectors. The detector is a large area (50?cm{sup 2}), partially depleted, ion implanted silicon diode operated in a pulse counting regime. While the scintillator-based neutron detectors allow for high time resolution measurements (?100 kHz), they have no spatial or energy resolution. The proton detector will provide 10 cm spatial resolution, allowing us to determine if the axial distribution of fast ions is consistent with classical fast ion theory or whether anomalous scattering mechanisms are active. We will describe in detail the diagnostic design and present initial data from a neutral beam test chamber.

  3. Cybersecurity Capability Maturity Model (C2M2) | Department of Energy

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

    Program » Cybersecurity Capability Maturity Model (C2M2) Cybersecurity Capability Maturity Model (C2M2) Cybersecurity Capability Maturity Model (C2M2) The C2M2 model, which is designed to be used by any organization to enhance its own cybersecurity capabilities, is publicly available and can be downloaded now. More information is available in the FAQs. For those organizations performing self-assessments, please refer to the C2M2 Facilitators Guide and request a free C2M2 toolkit. The

  4. Colorado Centre for Biorefining and Biofuels C2B2 | Open Energy...

    Open Energy Info (EERE)

    Centre for Biorefining and Biofuels C2B2 Jump to: navigation, search Name: Colorado Centre for Biorefining and Biofuels (C2B2) Place: Boulder, Colorado Zip: 80309 Sector: Biofuels,...

  5. Consumer to Grid (C2G) (Smart Grid Project) (Austria) | Open...

    Open Energy Info (EERE)

    Consumer to Grid (C2G) (Smart Grid Project) (Austria) Jump to: navigation, search Project Name Consumer to Grid (C2G) Country Austria Coordinates 47.516232, 14.550072 Loading...

  6. Consumer to Grid (C2G) (Smart Grid Project) (Hallein, Austria...

    Open Energy Info (EERE)

    Consumer to Grid (C2G) (Smart Grid Project) (Hallein, Austria) (2) Jump to: navigation, search Project Name Consumer to Grid (C2G) Country Austria Headquarters Location Hallein,...

  7. Cybersecurity Capability Maturity Model (C2M2) Program | Department of

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

    Energy Program Cybersecurity Capability Maturity Model (C2M2) Program Cybersecurity Capability Maturity Model (C2M2) Program The Cybersecurity Capability Maturity Model (C2M2) program is a public-private partnership effort that was established as a result of the Administration's efforts to improve electricity subsector cybersecurity capabilities, and to understand the cybersecurity posture of the grid. The C2M2 helps organizations-regardless of size, type, or industry-evaluate, prioritize,

  8. Electricity Subsector Cybersecurity Capability Maturity Model (ES-C2M2) |

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

    Department of Energy Electricity Subsector Cybersecurity Capability Maturity Model (ES-C2M2) Electricity Subsector Cybersecurity Capability Maturity Model (ES-C2M2) Electricity Subsector Cybersecurity Capability Maturity Model (ES-C2M2) The Electricity Subsector Cybersecurity Capability Maturity Model (ES-C2M2) was established as a result of the Administration's efforts to improve electricity subsector cybersecurity capabilities, and to understand the cybersecurity posture of the energy

  9. RAPID/Roadmap/7-FD-c(2) | Open Energy Information

    Open Energy Info (EERE)

    RAPIDRoadmap7-FD-c(2) < RAPID | Roadmap Jump to: navigation, search RAPID Regulatory and Permitting Information Desktop Toolkit BETA About Bulk Transmission Geothermal...

  10. COLLOQUIUM: The Main Results from the C-2 Device | Princeton Plasma Physics

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

    Lab September 17, 2014, 4:00pm to 5:30pm Colloquia MBG Auditorium COLLOQUIUM: The Main Results from the C-2 Device Michel Tuszewski Tri Alpha Energy Experiments in the C-2 device have recently concluded after six years of operation. Research will resume in winter 2015 on an upgraded device. The main goal of the C-2 device was to establish the foundation for high-beta Field Reversed Configuration (FRC) plasmas sustained by neutral beam injection. The C-2 campaigns proved successful, and

  11. 1-/sup 11/C-2-deoxy-D-glucose and process for the preparation thereof

    DOE Patents [OSTI]

    MacGregor, R.R.; Wolf, A.P.; Shiue, C.Y.; Wan, C.N.

    1980-02-08

    The novel labelled compound 1-/sup 11/C-2-deoxy-D-glucose, and a process for its preparation from 2,3:4,5-di-O-isopropylidene-D-arabinitol derivatives of relatively high reactivity are disclosed. 1-/sup 11/C-2-deoxy-D-glucose is useful for measuring regional brain glucose metabolism in vivo.

  12. ARM - VAP Product - armbeatm

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

    Productsarmbearmbeatm Documentation Data Management Facility Plots (Quick Looks) Citation DOI: 10.5439/1095313 DOI: 10.5439/1039931 Central Facility, Lamont, OK (SGP C1) DOI: 10.5439/1039932 Central Facility, Barrow AK (NSA C1) DOI: 10.5439/1039933 Central Facility, Manus I., PNG (TWP C1) DOI: 10.5439/1039934 Central Facility, Nauru Island (TWP C2) DOI: 10.5439/1039935 Central Facility, Darwin, Australia (TWP C3) [ What is this? ] Generate Citation ARM Data Discovery Browse Data Comments? We

  13. ARM - VAP Product - armbecldrad

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

    Productsarmbearmbecldrad Documentation Data Management Facility Plots (Quick Looks) Citation DOI: 10.5439/1095314 DOI: 10.5439/1039926 Central Facility, Lamont, OK (SGP C1) DOI: 10.5439/1039927 Central Facility, Barrow AK (NSA C1) DOI: 10.5439/1039928 Central Facility, Manus I., PNG (TWP C1) DOI: 10.5439/1039929 Central Facility, Nauru Island (TWP C2) DOI: 10.5439/1039930 Central Facility, Darwin, Australia (TWP C3) [ What is this? ] Generate Citation ARM Data Discovery Browse Data Comments? We

  14. Radiolysis and Ageing of C2-BTP in Cinnamaldehyde/Hexanol Mixtures

    SciTech Connect (OSTI)

    Fermvik, Anna; Ekberg, Christian; Retegan, Teodora; Skarnemark, Gunnar

    2007-07-01

    The separation of actinides from lanthanides is an important step in the alternative methods for nuclear waste treatment currently under development. Polycyclic molecules containing nitrogen are synthesised and used for solvent extraction. A potential problem in the separation process is the degradation of the molecule due to irradiation or ageing. An addition of nitrobenzene has proved to have an inhibitory effect on degradation when added to a system containing C2-BTP in hexanol before irradiation. In this study, 2,6-di(5,6-diethyl-1,2,4-triazine-3-yl)pyridine (C2-BTP) was dissolved in different mixtures of cinnamaldehyde and hexanol and the effects on extraction after ageing and irradiation were investigated. Similar to nitrobenzene, cinnamaldehyde contains an aromatic ring which generally has a relatively high resistance towards radiolysis. Both C2-BTP in cinnamaldehyde and C2-BTP in hexanol seem to degrade with time. The system with C2-BTP in pure hexanol is relatively stable up to 17 days but then starts slowly to degrade. The solution with pure cinnamaldehyde as diluent started to degrade after only {approx}20 hours. The opposite is true for degradation caused by radiolysis; hexanol systems are more sensitive to radiolysis than cinnamaldehyde systems. Most of the radiolytic degradation took place during the first days of irradiation, up to a dose of 4 kGy. (authors)

  15. ARM/NSA Vehicle Use Policy

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

    North Slope of AlaskaAdjacent Arctic Ocean (ACRFNSAAAO) Operating Procedures for The Use of Scaffolds at ACRFNSAAAO Meteorological Towers Introduction: An aluminum ...

  16. Overview of C-2 field-reversed configuration experiment plasma diagnostics

    SciTech Connect (OSTI)

    Gota, H. Thompson, M. C.; Tuszewski, M.; Binderbauer, M. W.

    2014-11-15

    A comprehensive diagnostic suite for field-reversed configuration (FRC) plasmas has been developed and installed on the C-2 device at Tri Alpha Energy to investigate the dynamics of FRC formation as well as to understand key FRC physics properties, e.g., confinement and stability, throughout a discharge. C-2 is a unique, large compact-toroid merging device that produces FRC plasmas partially sustained for up to ∼5 ms by neutral-beam (NB) injection and end-on plasma-guns for stability control. Fundamental C-2 FRC properties are diagnosed by magnetics, interferometry, Thomson scattering, spectroscopy, bolometry, reflectometry, and NB-related fast-ion/neutral diagnostics. These diagnostics (totaling >50 systems) are essential to support the primary goal of developing a deep understanding of NB-driven FRCs.

  17. OIL AND NATURAL GAS SUBSECTOR CYBERSECURITY CAPABILITY MATURITY MODEL (ONG-C2M2)

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

    OIL AND NATURAL GAS SUBSECTOR CYBERSECURITY CAPABILITY MATURITY MODEL (ONG-C2M2) Version 1.1 February 2014 Oil and Natural Gas Subsector Cybersecurity Capability Maturity Model Version 1.1 iii TABLE OF CONTENTS Acknowledgments ......................................................................................................................................... v 1. Introduction

  18. Cobalt triggers necrotic cell death and atrophy in skeletal C2C12 myotubes

    SciTech Connect (OSTI)

    Rovetta, Francesca; Stacchiotti, Alessandra; Faggi, Fiorella; Catalani, Simona; Apostoli, Pietro; Fanzani, Alessandro; Aleo, Maria Francesca

    2013-09-01

    Severe poisoning has recently been diagnosed in humans having hip implants composed of cobalt–chrome alloys due to the release of particulate wear debris on polyethylene and ceramic implants which stimulates macrophagic infiltration and destroys bone and soft tissue, leading to neurological, sensorial and muscular impairments. Consistent with this premise, in this study, we focused on the mechanisms underlying the toxicity of Co(II) ions on skeletal muscle using mouse skeletal C2C12 myotubes as an in vitro model. As detected using propidium iodide incorporation, increasing CoCl{sub 2} doses (from 5 to 200 μM) affected the viability of C2C12 myotubes, mainly by cell necrosis, which was attenuated by necrostatin-1, an inhibitor of the necroptotic branch of the death domain receptor signaling pathway. On the other hand, apoptosis was hardly detectable as supported by the lack of caspase-3 and -8 activation, the latter resulting in only faint activation after exposure to higher CoCl{sub 2} doses for prolonged time points. Furthermore, CoCl{sub 2} treatment resulted in atrophy of the C2C12 myotubes which was characterized by the increased expression of HSP25 and GRP94 stress proteins and other typical 'pro-atrophic molecular hallmarks, such as early activation of the NF-kB pathway and down-regulation of AKT phosphorylation, followed by the activation of the proteasome and autophagy systems. Overall, these results suggested that cobalt may impact skeletal muscle homeostasis as an inducer of cell necrosis and myofiber atrophy. - Highlights: • The effects of cobalt on muscle myofibers in vitro were investigated. • Cobalt treatment mainly causes cell necrosis in skeletal C2C12 myotubes. • Cobalt impacts the PI3K/AKT and NFkB pathways and induces cell stress markers. • Cobalt induces atrophy of C2C12 myotubes through the activation of proteasome and autophagy systems. • Co treatment triggers NF-kB and PI3K/AKT pathways in C2C12 myotubes.

  19. Doppler spectroscopy and D-alpha emission diagnostics for the C-2 FRC plasma

    SciTech Connect (OSTI)

    Gupta, Deepak K.; Paganini, E.; Bonelli, L.; Deng, B. H.; Gornostaeva, O.; Hayashi, R.; Knapp, K.; McKenzie, M.; Pousa-Hijos, R.; Primavera, S.; Schroeder, J.; Tuszewski, M.; Balvis, A.; Giammanco, F.; Marsili, P.

    2010-10-15

    Two Doppler spectroscopy diagnostics with complementary capabilities are developed to measure the ion temperatures and velocities of FRC plasmas in the C-2 device. First, the multichord ion doppler diagnostic can simultaneously measure 15 chords of the plasma using an image intensified camera. Second, a single-chord fast-response ion Doppler diagnostic provides much higher faster time response by using a 16-channel photo-multiplier tube array. To study the neutral density of deuterium under different wall and plasma conditions, a highly sensitive eight-channel D-alpha diagnostic has been developed and calibrated for absolute radiance measurements. These spectroscopic diagnostics capabilities, combined with other plasma diagnostics, are helping to understand and improve the field reversed configuration plasmas in the C-2 device.

  20. A new high performance field reversed configuration operating regime in the C-2 device

    SciTech Connect (OSTI)

    Tuszewski, M.; Smirnov, A.; Thompson, M. C.; Barnes, D.; Binderbauer, M. W.; Brown, R.; Bui, D. Q.; Clary, R.; Conroy, K. D.; Deng, B. H.; Dettrick, S. A.; Douglass, J. D.; Garate, E.; Glass, F. J.; Gota, H.; Guo, H.Y.; Gupta, D.; Gupta, S.; Kinley, J. S.; Knapp, K.; and others

    2012-05-15

    Large field reversed configurations (FRCs) are produced in the C-2 device by combining dynamic formation and merging processes. The good confinement of these FRCs must be further improved to achieve sustainment with neutral beam (NB) injection and pellet fuelling. A plasma gun is installed at one end of the C-2 device to attempt electric field control of the FRC edge layer. The gun inward radial electric field counters the usual FRC spin-up and mitigates the n = 2 rotational instability without applying quadrupole magnetic fields. Better plasma centering is also obtained, presumably from line-tying to the gun electrodes. The combined effects of the plasma gun and of neutral beam injection lead to the high performance FRC operating regime, with FRC lifetimes up to 3 ms and with FRC confinement times improved by factors 2 to 4.

  1. ARM - Datastreams - 915rwptempmom

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

    noise ratio dB*100 ssnr ( time, height ) Acoustic spectral width ms; 100*%, see comment ... Locations North Slope Alaska NSA C1 Browse Data Central Facility, Barrow AK retired ...

  2. Feasibility study of microwave electron heating on the C-2 field-reversed configuration device

    SciTech Connect (OSTI)

    Yang, Xiaokang Ceccherini, Francesco; Dettrick, Sean; Binderbauer, Michl; Koehn, Alf; Petrov, Yuri

    2015-12-10

    Different microwave heating scenarios for the C-2 plasmas have been investigated recently with use of both the Genray ray-racing code and the IPF-FDMC full-wave code, and the study was focused on the excitation of the electron Bernstein wave (EBW) with O-mode launch. For a given antenna position on C-2 and the fixed 2D plasma density and equilibrium field profiles, simulations have been done for six selected frequencies (2.45 GHz, 5 GHz, 8 GHz, 18 GHz, 28 GHz, and 50 GHz). Launch angles have been optimized for each case in order to achieve high coupling efficiencies to the EBW by the O-X-B mode conversion process and high power deposition. Results show that among those six frequencies, the case of 8 GHz is the most promising scenario, which has both high mode conversion efficiency (90%) and the relatively deeper power deposition.

  3. Separation of C2 Hydrocarbons by Porous Materials: Metal Organic Frameworks as Platform

    SciTech Connect (OSTI)

    Banerjee, Debasis; Liu, Jun; Thallapally, Praveen K.

    2014-12-22

    The effective separation of small hydrocarbon molecules (C1 C4) is an important process for petroleum industry, determining the end price of many essential commodities in our daily lives. Current technologies for separation of these molecules rely on energy intensive fractional distillation processes at cryogenic temperature, which is particularly difficult because of their similar volatility. In retrospect, adsorptive separation using solid state adsorbents might be a cost effective alternative. Several types of solid state adsorbents (e.g. zeolite molecular sieves) were tested for separation of small hydrocarbon molecules as a function of pressure, temperature or vacuum. Among different types of plausible adsorbents, metal organic frameworks (MOFs), a class of porous, crystalline, inorganic-organic hybrid materials, is particularly promising. In this brief comment article, we discuss the separation properties of different types of solid state adsorbents, with a particular emphasis on MOF based adsorbents for separation of C2 hydrocarbon molecules.

  4. Multi-channel Doppler backscattering measurements in the C-2 field reversed configuration

    SciTech Connect (OSTI)

    Schmitz, L. Peebles, W. A.; Ruskov, E.; Deng, B. H.; Gota, H.; Gupta, D.; Tuszewski, M.; Douglass, J.; Binderbauer, M.; Tajima, T.

    2014-11-15

    A versatile heterodyne Doppler Backscattering (DBS) system is used to measure density fluctuation levels (in the wavenumber range kρ{sub s} ≤ 50), and the toroidal E × B flow velocity in the C-2 Field-Reversed Configuration (FRC). Six tunable frequencies in three waveguide bands (26 GHz ≤ f ≤ 90 GHz) are launched using monostatic beam optics, via a quasi-optical beam combiner/polarizer and an adjustable parabolic focusing mirror (inside the vacuum enclosure) achieving Gaussian beam spot sizes of 3–5.5 cm at the X/O-mode cutoff. The DBS system covers plasma densities of 0.8 × 10{sup 13} ≤ n{sub e} ≤ 1 × 10{sup 14} cm{sup −3}, and provides access to the FRC core (up to the field null) and across the FRC separatrix into the scrape-off layer plasma.

  5. Ti 3 C 2 T x (MXene)–polyacrylamide nanocomposite films

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Naguib, Michael; Saito, Tomonori; Lai, Sophia; Rager, Matthew S.; Aytug, Tolga; Parans Paranthaman, M.; Zhao, Meng-Qiang; Gogotsi, Yury

    2016-07-20

    Polymer nanocomposite films are of great interest due to their enhanced properties over base polymers. By incorporating 2D titanium carbide a representative of a new family of 2D materials, MXenes, as nanofillers into a water soluble polyacrylamide (PAM) matrix, the resulting films benefit from the flexibility, robustness, and processability of PAM, as well as the conductivity and mechanical properties of MXene fillers. We report on manufacturing and characterization of MXene-PAM nanocomposite films. Dimethylsulfoxide (DMSO) intercalation in-between the Ti3C2-based MXene layers led to full delamination of the MXene layers and hence a uniform dispersion of hydrophilic MXene nanosheets in aqueous PAMmore » solutions was achieved. Moreover, the polymer composite solutions of up to 75 wt.% MXene loading were sonicated and cast onto large Teflon trays and dried at room temperature to produce shiny black films. The observation of reduced 0002 peaks of Ti3C2Tx phase in X-ray diffraction patterns and TEM images indicate the presence of well dispersed nanoflakes. The as-prepared composite films are flexible and the conductivity was increased significantly to 3 x 10-3 S cm-1 for 6 wt. % MXene-PAM films. With high MXene loading, some non-uniformity between the top and bottom surfaces was observed. This could be due to the segregation of MXene layers in composite films during drying. Finally, the power law dependence of conductivity above the percolation threshold is presented through detailed conductivity measurements.« less

  6. Nanocrystalline SiC and Ti3SiC2 Alloys for Reactor Materials: Diffusion of Fission Product Surrogates

    SciTech Connect (OSTI)

    Henager, Charles H.; Jiang, Weilin

    2014-11-01

    MAX phases, such as titanium silicon carbide (Ti3SiC2), have a unique combination of both metallic and ceramic properties, which make them attractive for potential nuclear applications. Ti3SiC2 has been suggested in the literature as a possible fuel cladding material. Prior to the application, it is necessary to investigate diffusivities of fission products in the ternary compound at elevated temperatures. This study attempts to obtain relevant data and make an initial assessment for Ti3SiC2. Ion implantation was used to introduce fission product surrogates (Ag and Cs) and a noble metal (Au) in Ti3SiC2, SiC, and a dual-phase nanocomposite of Ti3SiC2/SiC synthesized at PNNL. Thermal annealing and in-situ Rutherford backscattering spectrometry (RBS) were employed to study the diffusivity of the various implanted species in the materials. In-situ RBS study of Ti3SiC2 implanted with Au ions at various temperatures was also performed. The experimental results indicate that the implanted Ag in SiC is immobile up to the highest temperature (1273 K) applied in this study; in contrast, significant out-diffusion of both Ag and Au in MAX phase Ti3SiC2 occurs during ion implantation at 873 K. Cs in Ti3SiC2 is found to diffuse during post-irradiation annealing at 973 K, and noticeable Cs release from the sample is observed. This study may suggest caution in using Ti3SiC2 as a fuel cladding material for advanced nuclear reactors operating at very high temperatures. Further studies of the related materials are recommended.

  7. Diffusion of Ag, Au and Cs implants in MAX phase Ti3SiC2 (Journal...

    Office of Scientific and Technical Information (OSTI)

    Title: Diffusion of Ag, Au and Cs implants in MAX phase Ti3SiC2 MAX phases (M: early transition metal; A: elements in group 13 or 14; X: C or N), such as titanium silicon carbide ...

  8. The effect of Fe-Rh alloying on CO hydrogenation to C2+ oxygenates

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Palomino, Robert; Magee, Joseph W.; Llorca, Jordi; Senanayake, Sanjaya D.; White, Michael G.

    2015-05-20

    A combination of reactivity and structural studies using X-ray diffraction (XRD), pair distribution function (PDF), and transmission electron microscopy (TEM) was used to identify the active phases of Fe-modified Rh/TiO2 catalysts for the synthesis of ethanol and other C2+ oxygenates from CO hydrogenation. XRD and TEM confirm the existence of Fe–Rh alloys for catalyst with 1–7 wt% Fe and ~2 wt% Rh. Rietveld refinements show that FeRh alloy content increases with Fe loading up to ~4 wt%, beyond which segregation to metallic Fe becomes favored over alloy formation. Catalysts that contain Fe metal after reduction exhibit some carburization as evidencedmore » by the formation of small amounts of Fe3C during CO hydrogenation. Analysis of the total Fe content of the catalysts also suggests the presence of FeOx also increased under reaction conditions. Reactivity studies show that enhancement of ethanol selectivity with Fe loading is accompanied by a significant drop in CO conversion. Comparison of the XRD phase analyses with selectivity suggests that higher ethanol selectivity is correlated with the presence of Fe–Rh alloy phases. As a result, the interface between Fe and Rh serves to enhance the selectivity of ethanol, but suppresses the activity of the catalyst which is attributed to the blocking or modifying of Rh active sites.« less

  9. Langmuir probe diagnostic suite in the C-2 field-reversed configuration

    SciTech Connect (OSTI)

    Roche, T. Armstrong, S.; Knapp, K.; Slepchenkov, M.; Sun, X.

    2014-11-15

    Several in situ probes have been designed and implemented into the diagnostic array of the C-2 field-reversed configuration (FRC) at Tri Alpha Energy [M. Tuszewski et al. (the TAE Team), Phys. Rev. Lett. 108, 255008 (2012)]. The probes are all variations on the traditional Langmuir probe. They include linear arrays of triple probes, linear arrays of single-tipped swept probes, a multi-faced Gundestrup probe, and an ion-sensitive probe. The probes vary from 5 to 7 mm diameter in size to minimize plasma perturbations. They also have boron nitride outer casings that prevent unwanted electrical breakdown and reduce the introduction of impurities. The probes are mounted on motorized linear-actuators allowing for programmatic scans of the various plasma parameters over the course of several shots. Each probe has a custom set of electronics that allows for measurement of the desired signals. High frequency ( > 5MHz) analog optical-isolators ensure that plasma parameters can be measured at sub-microsecond time scales while providing electrical isolation between machine and data acquisition systems. With these probes time-resolved plasma parameters (temperature, density, spatial potential, flow, and electric field) can be directly/locally measured in the FRC jet and edge/scrape-off layer.

  10. The effect of Fe-Rh alloying on CO hydrogenation to C2+ oxygenates

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Palomino, Robert; Magee, Joseph W.; Llorca, Jordi; Senanayake, Sanjaya D.; White, Michael G.

    2015-05-20

    A combination of reactivity and structural studies using X-ray diffraction (XRD), pair distribution function (PDF), and transmission electron microscopy (TEM) was used to identify the active phases of Fe-modified Rh/TiO2 catalysts for the synthesis of ethanol and other C2+ oxygenates from CO hydrogenation. XRD and TEM confirm the existence of Fe–Rh alloys for catalyst with 1–7 wt% Fe and ~2 wt% Rh. Rietveld refinements show that FeRh alloy content increases with Fe loading up to ~4 wt%, beyond which segregation to metallic Fe becomes favored over alloy formation. Catalysts that contain Fe metal after reduction exhibit some carburization as evidencedmore »by the formation of small amounts of Fe3C during CO hydrogenation. Analysis of the total Fe content of the catalysts also suggests the presence of FeOx also increased under reaction conditions. Reactivity studies show that enhancement of ethanol selectivity with Fe loading is accompanied by a significant drop in CO conversion. Comparison of the XRD phase analyses with selectivity suggests that higher ethanol selectivity is correlated with the presence of Fe–Rh alloy phases. As a result, the interface between Fe and Rh serves to enhance the selectivity of ethanol, but suppresses the activity of the catalyst which is attributed to the blocking or modifying of Rh active sites.« less

  11. Nanoscale elastic changes in 2D Ti3C2Tx (MXene) pseudocapacitive electrodes

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Come, Jeremy; Xie, Yu; Naguib, Michael; Jesse, Stephen; Kalinin, Sergei V.; Gogotsi, Yury; Kent, Paul R. C.; Balke, Nina

    2016-02-01

    Designing sustainable electrodes for next generation energy storage devices relies on the understanding of their fundamental properties at the nanoscale, including the comprehension of ions insertion into the electrode and their interactions with the active material. One consequence of ion storage is the change in the electrode volume resulting in mechanical strain and stress that can strongly affect the cycle life. Therefore, it is important to understand the changes of dimensions and mechanical properties occurring during electrochemical reactions. While the characterization of mechanical properties via macroscopic measurements is well documented, in-situ characterization of their evolution has never been achieved atmore » the nanoscale. Two dimensional (2D) carbides, known as MXenes, are promising materials for supercapacitors and various kinds of batteries, and understating the coupling between their mechanical and electrochemical properties is therefore necessary. Here we report on in-situ imaging, combined with density functional theory of the elastic changes, of a 2D titanium carbide (Ti3C2Tx) electrode in direction normal to the basal plane during cation intercalation. The results show a strong correlation between the Li+ ions content and the elastic modulus, whereas little effects of K+ ions are observed. Moreover, this strategy enables identifying the preferential intercalation pathways within a single particle.« less

  12. Effect of neutron irradiation on defect evolution in Ti3SiC2 and Ti2AlC

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Tallman, Darin J.; He, Lingfeng; Garcia-Diaz, Brenda L.; Hoffman, Elizabeth N.; Kohse, Gordon; Sindelar, Robert L.; Barsoum, Michel W.

    2015-10-23

    Here, we report on the characterization of defects formed in polycrystalline Ti3SiC2 and Ti2AlC samples exposed to neutron irradiation – up to 0.1 displacements per atom (dpa) at 350 ± 40 °C or 695 ± 25 °C, and up to 0.4 dpa at 350 ± 40 °C. Black spots are observed in both Ti3SiC2 and Ti2AlC after irradiation to both 0.1 and 0.4 dpa at 350 °C. After irradiation to 0.1 dpa at 695 °C, small basal dislocation loops, with a Burgers vector of b = 1/2 [0001] are observed in both materials. At 9 ± 3 and 10 ±more » 5 nm, the loop diameters in the Ti3SiC2 and Ti2AlC samples, respectively, were comparable. At 1 × 1023 loops/m3, the dislocation loop density in Ti2AlC was ≈1.5 orders of magnitude greater than in Ti3SiC2, at 3 x 1021 loops/m3. After irradiation at 350 °C, extensive microcracking was observed in Ti2AlC, but not in Ti3SiC2. The room temperature electrical resistivities increased as a function of neutron dose for all samples tested, and appear to saturate in the case of Ti3SiC2. The MAX phases are unequivocally more neutron radiation tolerant than the impurity phases TiC and Al2O3. Based on these results, Ti3SiC2 appears to be a more promising MAX phase candidate for high temperature nuclear applications than Ti2AlC.« less

  13. Structure of the human factor VIII C2 domain in complex with the 3E6 inhibitory antibody

    SciTech Connect (OSTI)

    Wuerth, Michelle E.; Cragerud, Rebecca K.; Spiegel, P. Clint

    2015-11-24

    Blood coagulation factor VIII is a glycoprotein cofactor that is essential for the intrinsic pathway of the blood coagulation cascade. Inhibitory antibodies arise either spontaneously or in response to therapeutic infusion of functional factor VIII into hemophilia A patients, many of which are specific to the factor VIII C2 domain. The immune response is largely parsed into “classical” and “non-classical” inhibitory antibodies, which bind to opposing faces cooperatively. In this study, the 2.61 Å resolution structure of the C2 domain in complex with the antigen-binding fragment of the 3E6 classical inhibitory antibody is reported. The binding interface is largely conserved when aligned with the previously determined structure of the C2 domain in complex with two antibodies simultaneously. Further inspection of the B factors for the C2 domain in various X-ray crystal structures indicates that 3E6 antibody binding decreases the thermal motion behavior of surface loops in the C2 domain on the opposing face, thereby suggesting that cooperative antibody binding is a dynamic effect. Furthermore, understanding the structural nature of the immune response to factor VIII following hemophilia A treatment will help lead to the development of better therapeutic reagents.

  14. Corrosion of high temperature alloys in solar salt at 400, 500, and 680%C2%B0C.

    SciTech Connect (OSTI)

    Kruizenga, Alan Michael; Gill, David Dennis; LaFord, Marianne Elizabeth

    2013-09-01

    Corrosion tests at 400, 500, and 680%C2%B0C were performed using four high temperature alloys; 347SS, 321SS In625, and HA230. Molten salt chemistry was monitored over time through analysis of nitrite, carbonate, and dissolved metals. Metallography was performed on alloys at 500 and 680%C2%B0C, due to the relatively thin oxide scale observed at 400%C2%B0C. At 500%C2%B0C, corrosion of iron based alloys took the form of chromium depletion and iron oxides, while nickel based alloys also had chromium depletion and formation of NiO. Chromium was detected in relatively low concentrations at this temperature. At 680%C2%B0C, significant surface corrosion occurred with metal losses greater than 450microns/year after 1025hours of exposure. Iron based alloys formed complex iron, sodium, and chromium oxides. Some data suggests grain boundary chromium depletion of 321SS. Nickel alloys formed NiO and metallic nickel corrosion morphologies, with HA230 displaying significant internal oxidation in the form of chromia. Nickel alloys both exhibited worse corrosion than iron based alloys likely due to preferential dissolution of chromium, molybdenum, and tungsten.

  15. Structure of the human factor VIII C2 domain in complex with the 3E6 inhibitory antibody

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Wuerth, Michelle E.; Cragerud, Rebecca K.; Spiegel, P. Clint

    2015-11-24

    Blood coagulation factor VIII is a glycoprotein cofactor that is essential for the intrinsic pathway of the blood coagulation cascade. Inhibitory antibodies arise either spontaneously or in response to therapeutic infusion of functional factor VIII into hemophilia A patients, many of which are specific to the factor VIII C2 domain. The immune response is largely parsed into “classical” and “non-classical” inhibitory antibodies, which bind to opposing faces cooperatively. In this study, the 2.61 Å resolution structure of the C2 domain in complex with the antigen-binding fragment of the 3E6 classical inhibitory antibody is reported. The binding interface is largely conservedmore » when aligned with the previously determined structure of the C2 domain in complex with two antibodies simultaneously. Further inspection of the B factors for the C2 domain in various X-ray crystal structures indicates that 3E6 antibody binding decreases the thermal motion behavior of surface loops in the C2 domain on the opposing face, thereby suggesting that cooperative antibody binding is a dynamic effect. Furthermore, understanding the structural nature of the immune response to factor VIII following hemophilia A treatment will help lead to the development of better therapeutic reagents.« less

  16. Wnt/{beta}-catenin signaling changes C2C12 myoblast proliferation and differentiation by inducing Id3 expression

    SciTech Connect (OSTI)

    Zhang, Long; Shi, Songting; Zhang, Juan; Zhou, Fangfang; Dijke, Peter ten

    2012-03-02

    Highlights: Black-Right-Pointing-Pointer Expression of Id3 but not Id1 is induced by Wnt3a stimulation in C2C12 cells. Black-Right-Pointing-Pointer Wnt3a induces Id3 expression via canonical Wnt/{beta}-catenin pathway. Black-Right-Pointing-Pointer Wnt3a-induced Id3 expression does not depend on BMP signaling activation. Black-Right-Pointing-Pointer Induction of Id3 expression is critical determinant in Wnt3a-induced cell proliferation and differentiation. -- Abstract: Canonical Wnt signaling plays important roles in regulating cell proliferation and differentiation. In this study, we report that inhibitor of differentiation (Id)3 is a Wnt-inducible gene in mouse C2C12 myoblasts. Wnt3a induced Id3 expression in a {beta}-catenin-dependent manner. Bone morphogenetic protein (BMP) also potently induced Id3 expression. However, Wnt-induced Id3 expression occurred independent of the BMP/Smad pathway. Functional studies showed that Id3 depletion in C2C12 cells impaired Wnt3a-induced cell proliferation and alkaline phosphatase activity, an early marker of osteoblast cells. Id3 depletion elevated myogenin induction during myogenic differentiation and partially impaired Wnt3a suppressed myogenin expression in C2C12 cells. These results suggest that Id3 is an important Wnt/{beta}-catenin induced gene in myoblast cell fate determination.

  17. Covariance mapping of two-photon double core hole states in C 2 H 2 and C 2 H 6 produced by an x-ray free electron laser

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Mucke, M; Zhaunerchyk, V; Frasinski, L J; Squibb, R J; Siano, M; Eland, J H D; Linusson, P; Salén, P; Meulen, P v d; Thomas, R D; et al

    2015-07-01

    Few-photon ionization and relaxation processes in acetylene (C2H2) and ethane (C2H6) were investigated at the linac coherent light source x-ray free electron laser (FEL) at SLAC, Stanford using a highly efficient multi-particle correlation spectroscopy technique based on a magnetic bottle. The analysis method of covariance mapping has been applied and enhanced, allowing us to identify electron pairs associated with double core hole (DCH) production and competing multiple ionization processes including Auger decay sequences. The experimental technique and the analysis procedure are discussed in the light of earlier investigations of DCH studies carried out at the same FEL and at thirdmore » generation synchrotron radiation sources. In particular, we demonstrate the capability of the covariance mapping technique to disentangle the formation of molecular DCH states which is barely feasible with conventional electron spectroscopy methods.« less

  18. Measurements of neutral density profiles using a deuterium Balmer-alpha diagnostic in the C-2 FRC plasma

    SciTech Connect (OSTI)

    Gupta, Deepak K.; Deng, B. H.; Knapp, K.; Sun, X.; Thompson, M. C.

    2012-10-15

    In C-2 field-reversed configuration (FRC) device, low neutral density outside the FRC separatrix is required to minimize the charge exchange loss of fast particles. Titanium gettering is used in C-2 to reduce the wall recycling and keep the neutral density low in plasma edge. The measurements of neutral density radial profile are desirable to understand the plasma recycling and the effects of titanium gettering. These measurements are also needed to study the interaction of neutral beams with FRC plasma and confinement of fast ions. Diagnostic based on absolute deuterium Balmer-alpha (D-alpha) radiation measurements is developed and deployed on C-2 device to measure the radial profile of neutral density. Simultaneous measurements of electron density and temperature are done using CO{sub 2} interferometer, Thomson scattering, and triple probes diagnostics along with absolute D-alpha radiation. Abel inversion was performed to get the time dependent radial profile of the local D-alpha emission density. Neutral density profiles are obtained under different machine conditions of titanium deposition.

  19. c2.xls

    Gasoline and Diesel Fuel Update (EIA)

    of Hot Water ... 567 19,482 34,904 24,710 6,466 724 3,003 Separate Computer Area ... 553 26,873 44,552 33,308 6,230 732 4,282 HVAC...

  20. app_c2

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

    ... Air quality regulations have been established by Federal and State agencies to protect the public from potential harmful effects of air pollution. The Federal Clean Air Act ...

  1. The Role of Ir in Ternary Rh-Based Catalysts for Syngas Conversion to C2+ Oxygenates

    SciTech Connect (OSTI)

    Glezakou, Vassiliki Alexandra; Jaffe, John E.; Rousseau, Roger J.; Mei, Donghai; Kathmann, Shawn M.; Albrecht, Karl O.; Gray, Michel J.; Gerber, Mark A.

    2012-07-09

    Transition metal modified Rh-catalysts can be used for converting syngas (CO+H2) into C2+ oxygenates. It has been found that Mn has a favorable effect in the selectivity towards oxygenates, while addition of Ir to the binary Rh-Mn catalysts significantly increases the space-time yield of C2+ oxygenates. In this paper, we use quantum mechanical calculations to investigate the distribution of promoter sites within Rh rich nanoparticles and their role in the conversion of syngas towards ethanol. This work was supported by the U.S. Department of Energy (DOE), Office of Energy Efficiency and Renewable Energy Biomass Program. The Pacific Northwest National Laboratory (PNNL) is operated by Battelle for the DOE under Contract DE-AC05-76RL01830. A portion of the research was performed in the Environmental Molecular Sciences Laboratory (EMSL), a national science user facility sponsored by the Department of Energy’s Office of Biological and Environmental Research located at PNNL.

  2. ARM/NSA ES&H Policy Statement

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

    Facility North Slope of AlaskaAdjacent Arctic Ocean (ACRFNSAAAO) ES&H Policy Statement The ACRFNSAAAO ES&H Policy Statement describes the general safety-related ...

  3. Anisotropic swelling and microcracking of neutron irradiated Ti3AlC2-Ti5Al2C3 materials

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Ang, Caen K.; Silva, Chinthaka M.; Shih, Chunghao Phillip; Koyanagi, Takaaki; Katoh, Yutai; Zinkle, Steven J.

    2015-12-17

    Mn + 1AXn (MAX) phase materials based on Ti–Al–C have been irradiated at 400 °C (673 K) with fission neutrons to a fluence of 2 × 1025 n/m2 (E > 0.1 MeV), corresponding to ~ 2 displacements per atom (dpa). We report preliminary results of microcracking in the Al-containing MAX phase, which contained the phases Ti3AlC2 and Ti5Al2C3. Equibiaxial ring-on-ring tests of irradiated coupons showed that samples retained 10% of pre-irradiated strength. Volumetric swelling of up to 4% was observed. Phase analysis and microscopy suggest that anisotropic lattice parameter swelling caused microcracking. Lastly, variants of titanium aluminum carbide may bemore » unsuitable materials for irradiation at light water reactor-relevant temperatures.« less

  4. Resolving the structure of Ti3C2Tx MXenes through multilevel structural modeling of the atomic pair distribution function

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Wesolowski, David J.; Wang, Hsiu -Wen; Page, Katharine L.; Naguib, Michael; Gogotsi, Yury

    2015-12-08

    MXenes are a recently discovered family of two-dimensional (2D) early transition metal carbides and carbonitrides, which have already shown many attractive properties and a great promise in energy storage and many other applications. However, a complex surface chemistry and small coherence length has been an obstacle in some applications of MXenes, also limiting accuracy of predictions of their properties. In this study, we describe and benchmark a novel way of modeling layered materials with real interfaces (diverse surface functional groups and stacking order between the adjacent monolayers) against experimental data. The structures of three kinds of Ti3C2Tx MXenes (T standsmore » for surface terminating species, including O, OH, and F) produced under different synthesis conditions were resolved for the first time using atomic pair distribution function obtained by high-quality neutron total scattering. The true nature of the material can be easily captured with the sensitivity of neutron scattering to the surface species of interest and the detailed third-generation structure model we present. The modeling approach leads to new understanding of MXene structural properties and can replace the currently used idealized models in predictions of a variety of physical, chemical and functional properties of Ti3C2-based MXenes. Furthermore, the developed models can be employed to guide the design of new MXene materials with selected surface termination and controlled contact angle, catalytic, optical, electrochemical and other properties. We suggest that the multi-level structural modeling should form the basis for a generalized methodology on modeling diffraction and pair distribution function data for 2D and layered materials.« less

  5. Data:C9125b18-da0a-4612-b0c6-3eb6421ac6c2 | Open Energy Information

    Open Energy Info (EERE)

    b0c6-3eb6421ac6c2 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...

  6. Nanocrystalline SiC and Ti3SiC2 Alloys for Reactor Materials: Thermal and Mechanical Properties

    SciTech Connect (OSTI)

    Henager, Charles H.; Alvine, Kyle J.; Roosendaal, Timothy J.; Shin, Yongsoon; Nguyen, Ba Nghiep; Borlaug, Brennan A.; Jiang, Weilin

    2014-04-01

    SiC-polymers (pure polycarbosilane and polycarbosilane filled with SiC-particles) are being combined with Si and TiC powders to create a new class of polymer-derived ceramics for consideration as advanced nuclear materials in a variety of applications. Compared to pure SiC these materials have increased fracture toughness with only slightly reduced thermal conductivity. Future work with carbon nanotube (CNT) mats will be introduced with the potential to increase the thermal conductivity and the fracture toughness. At present, this report documents the fabrication of a new class of monolithic polymer derived ceramics, SiC + SiC/Ti3SiC2 dual phase materials. The fracture toughness of the dual phase material was measured to be significantly greater than Hexoloy SiC using indentation fracture toughness testing. However, thermal conductivity of the dual phase material was reduced compared to Hexoloy SiC, but was still appreciable, with conductivities in the range of 40 to 60 W/(m K). This report includes synthesis details, optical and scanning electron microscopy images, compositional data, fracture toughness, and thermal conductivity data.

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

    Open Energy Info (EERE)

    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....

  8. ARM XDC Datastreams

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

    ... Site ID Begin Date SGP-E13: ARM CF Lamont, OK SG01 2003-02-12 NSA-C1: Barrow, Alaska SG27 2003-02-12 NSA-C2: Atqasuk, Alaska ATQK 2007-07-15 TWP-C1: Manus Island, Papua New Guinea ...

  9. Gaseous CN, C2, and C3 jets in the inner coma of Comet P/Halley observed from the Vega 2 spacecraft

    SciTech Connect (OSTI)

    Clairemidi, J.; Moreels, G.; Krasnopol'skii, V.A. Institut Kosmicheskikh Issledovanii, Moscow )

    1990-07-01

    A superposition of the monochromatic charts transmitted by Vega 2's three-channel spectrometer during its approach of Comet P/Halley in March, 1986, has yielded composite images of the inner coma with moderate spatial resolution which cover a sector of angle 50 deg converging to the nucleus. Images of the CN, C3, C2 Delta-v = 1 and C2 Delta-v = 0 emissions show evidence of two well-contrasted jets, one of which is in the direction of the sun while the other lies in the perpendicular direction; they are separated by a valley-shaped low-intensity zone. Radial and transverse profiles of the emissions are presented. 28 refs.

  10. Polarizations of X c1 and X c2 in Prompt Production at the LHC

    SciTech Connect (OSTI)

    Sheng, Shao H.; Ma, Y.; Wang, K.; Ta Chao, K.

    2014-05-08

    Prompt χc production at hadron colliders may provide a unique test for the color-octet mechanism in nonrelativistic QCD. We present an analysis for the polarization observables of χc1 and χc2 at next-to-leading order in αS and propose to measure them at the LHC, which is expected to be important for testing the validity of nonrelativistic QCD.

  11. Assessment of the LV-C2 Stack Sampling Probe Location for Compliance with ANSI/HPS N13.1-1999

    SciTech Connect (OSTI)

    Glissmeyer, John A.; Antonio, Ernest J.; Flaherty, Julia E.

    2015-09-01

    This document reports on a series of tests conducted to assess the proposed air sampling location for the Hanford Tank Waste Treatment and Immobilization Plant (WTP) Low-Activity Waste (LAW) C2V (LV-C2) exhaust stack with respect to the applicable criteria regarding the placement of an air sampling probe. Federal regulations require that a sampling probe be located in the exhaust stack according to the criteria established by the American National Standards Institute/Health Physics Society (ANSI/HPS) N13.1-1999, Sampling and Monitoring Releases of Airborne Radioactive Substances from the Stack and Ducts of Nuclear Facilities. These criteria address the capability of the sampling probe to extract a sample that represents the effluent stream. The tests were conducted on the LV-C2 scale model system. Based on the scale model tests, the location proposed for the air sampling probe in the scale model stack meets the requirements of the ANSI/HPS N13.1-1999 standard for velocity uniformity, flow angle, gas tracer and particle tracer uniformity. Additional velocity uniformity and flow angle tests on the actual stack will be necessary during cold startup to confirm the validity of the scale model results in representing the actual stack.

  12. Sodium arsenite represses the expression of myogenin in C2C12 mouse myoblast cells through histone modifications and altered expression of Ezh2, Glp, and Igf-1

    SciTech Connect (OSTI)

    Hong, Gia-Ming; Present address: The University of Chicago, Section of Hematology Bain, Lisa J.

    2012-05-01

    Arsenic is a toxicant commonly found in water systems and chronic exposure can result in adverse developmental effects including increased neonatal death, stillbirths, and miscarriages, low birth weight, and altered locomotor activity. Previous studies indicate that 20 nM sodium arsenite exposure to C2C12 mouse myocyte cells delayed myoblast differentiation due to reduced myogenin expression, the transcription factor that differentiates myoblasts into myotubes. In this study, several mechanisms by which arsenic could alter myogenin expression were examined. Exposing differentiating C2C12 cells to 20 nM arsenic increased H3K9 dimethylation (H3K9me2) and H3K9 trimethylation (H3K9me3) by 3-fold near the transcription start site of myogenin, which is indicative of increased repressive marks, and reduced H3K9 acetylation (H3K9Ac) by 0.5-fold, indicative of reduced permissive marks. Protein expression of Glp or Ehmt1, a H3-K9 methyltransferase, was also increased by 1.6-fold in arsenic-exposed cells. In addition to the altered histone remodeling status on the myogenin promoter, protein and mRNA levels of Igf-1, a myogenic growth factor, were significantly repressed by arsenic exposure. Moreover, a 2-fold induction of Ezh2 expression, and an increased recruitment of Ezh2 (3.3-fold) and Dnmt3a (? 2-fold) to the myogenin promoter at the transcription start site (? 40 to + 42), were detected in the arsenic-treated cells. Together, we conclude that the repressed myogenin expression in arsenic-exposed C2C12 cells was likely due to a combination of reduced expression of Igf-1, enhanced nuclear expression and promoter recruitment of Ezh2, and altered histone remodeling status on myogenin promoter (? 40 to + 42). -- Highlights: ? Igf-1 expression is decreased in C2C12 cells after 20 nM arsenite exposure. ? Arsenic exposure alters histone remodeling on the myogenin promoter. ? Glp expression, a H3K9 methyltransferase, was increased in arsenic-exposed cells. ? Ezh2 and Dnmt3a

  13. DOE Research and Development Accomplishments Database Browse

    Office of Scientific and Technical Information (OSTI)

    J. J.; Sinclair, D.; Skensved, P.; Smith, M. W. E.; Sonley, T. J.; Steiger, T. D.; ... Simpson, D. Sinclair, P. Skensved, A. R. Smith, M. W. E. Smith, N. Starinsky, T. D. ...

  14. Browse By Region | Open Energy Information

    Open Energy Info (EERE)

    (231) States (50) Congressional Districts (437) Counties (3142) Cities (27936) Clean Energy Economy Regions (7) Programs (1157) Tools (1669) Retrieved from "http:...

  15. Browse Archived Directives - DOE Directives, Delegations, and...

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

    Issue Date Start date End date Subjects match any Administration Environment Finance Health Human Resources Information Technology Management and Operations Procurement Safety...

  16. Browse Archived Directives - DOE Directives, Delegations, and

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

    Requirements Accessibility Text size: (Requires JavaScript) Large Normal Small This site uses the Open Source Content Management System Plone and has been designed to be completely accessible and usable, working in accordance with the Web Content Accessibility Guidelines (WCAG v1.0). If there is anything on this site - accessibility or validation related - that is not according to the standard, please contact the Site Administration, and not the Plone Team. Access keys Access keys are a

  17. Browse Designations - DOE Directives, Delegations, and Requirements

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

    Accessibility Text size: (Requires JavaScript) Large Normal Small This site uses the Open Source Content Management System Plone and has been designed to be completely accessible and usable, working in accordance with the Web Content Accessibility Guidelines (WCAG v1.0). If there is anything on this site - accessibility or validation related - that is not according to the standard, please contact the Site Administration, and not the Plone Team. Access keys Access keys are a navigation device

  18. c2a.xls

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

    Buildings ... 4,859 71,658 107,897 82,783 16,010 1,826 7,279 Building Floorspace (Square Feet) 1,001 to 5,000 ......

  19. Measurement of sigma(chi(c2)B(chi(c2) ---> J / psi gamma) / sigma(chi(c1)B(chi(c1) ---> J / psi gamma) in p anti-p collisions at s**(1/2) = 1.96-TeV

    SciTech Connect (OSTI)

    Abulencia, A.; Adelman, J.; Affolder, T.; Akimoto, T.; Albrow, M.G.; Ambrose, D.; Amerio, S.; Amidei, D.; Anastassov, A.; Anikeev, K.; Annovi, A.; /Frascati /Comenius U.

    2007-03-01

    The authors measure the ratio of cross section times branching fraction, {sigma}{sub {chi}c2}{beta}({chi}{sub c2} {yields} J/{psi}{gamma})/{sigma}{sub {chi}c1}{beta}({chi}{sub c1} {yields} J/{psi}{gamma}), in 1.1 fb{sup -1} of p{bar p} collisions at {radical}s = 1.96 TeV. This measurement covers the kinematic range p{sub T} (J/{psi}) > 4.0 GeV/c, |{eta}(J/{psi})| < 1.0, and p{sub T}({gamma}) > 1.0 GeV/c. For events due to prompt processes, they find R{sub p} = 0.395 {+-} 0.016(stat.) {+-} 0.015(sys.). This result represents a significant improvement in precision over previous measurements of prompt {chi}{sub c1,2} hadroproduction.

  20. The three-dimensional analysis of hinode polar jets using images from LASCO C2, the STEREO COR2 coronagraphs, and SMEI

    SciTech Connect (OSTI)

    Yu, H.-S.; Jackson, B. V.; Buffington, A.; Hick, P. P.; Shimojo, M.; Sako, N.

    2014-04-01

    Images recorded by the X-ray Telescope on board the Hinode spacecraft are used to provide high-cadence observations of solar jetting activity. A selection of the brightest of these polar jets shows a positive correlation with high-speed responses traced into the interplanetary medium. LASCO C2 and STEREO COR2 coronagraph images measure the coronal response to some of the largest jets, and also the nearby background solar wind velocity, thereby giving a determination of their speeds that we compare with Hinode observations. When using the full Solar Mass Ejection Imager (SMEI) data set, we track these same high-speed solar jet responses into the inner heliosphere and from these analyses determine their mass, flow energies, and the extent to which they retain their identity at large solar distances.

  1. The states of carbon and nitrogen atoms after photodissociation of CN, CH, CH(+), C2, C3, and CO in comets

    SciTech Connect (OSTI)

    Singh, P.D.; De almeida, A.A.; Huebner, W.F. Southwest Research Institute, San Antonio, TX )

    1991-03-01

    The photodissociation of carbon compounds by solar UV radiation at a heliocentric distance of 1 AU is examined, comparing published observational data with the predictions of theoretical models and results from laboratory experiments. It is shown that species other than CO, including CN, CH, CH(+), C2, and C3, can contribute to the observed brightness of the VUV lines of C I (156.1, 165.7, and 193.1 nm) and C II (133.5 nm) in comet comae. CN photodissociation is also found to produce metastable 2D0 and 2P0 N I atoms, possibly leading (at heliocentric distances less than 0.25 AU) to 143.9-nm emission via resonance fluorescence. 37 refs.

  2. ARM - Field Campaign - M-PACE - Polarization Diversity Lidar (PDL)

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

    - Polarization Diversity Lidar (PDL) Campaign Links M-PACE Website 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 : M-PACE - Polarization Diversity Lidar (PDL) 2004.09.01 - 2004.10.21 Lead Scientist : Kenneth Sassen For data sets, see below. Abstract In support of M-PACE, a Polarization Diversity Lidar (PDL), was deployed to the NSA. Unlike the micro pulses of the MPL (micropulse lidar) present at NSA, the

  3. Multispectrum analysis of the v9 band of 12C2H6: Positions, intensities, self- and N2-broadened half-width coefficients

    SciTech Connect (OSTI)

    Devi, V. Malathy; Rinsland, Curtis P.; Benner, D. C.; Sams, Robert L.; Blake, Thomas A.

    2010-06-01

    Line positions, intensities, Lorentz self- and N2-broadened half-width coefficients have been measured for PQ3, PQ2, PQ1, RQ0,RQ1, RQ2, and RQ3 sub-band transitions in the 9 fundamental band of 12C2H6. A multispectrum nonlinear least-squares fitting technique was used to fit up to 17 high-resolution (~0.00156 cm-1), room temperature absorption spectra of pure (99.99% chemical purity) natural sample of ethane and lean mixtures of the high-purity ethane diluted with N2. A Bruker IFS 120HR Fourier transform spectrometer located at the Pacific Northwest National Laboratory (PNNL), in Richland, Washington was used to record the data. A standard Voigt line shape was assumed to fit all the data since no line mixing or other non Voigt line shapes were required to fit any of the spectra used in the analysis. Short spectral intervals (~2 to 2.5 cm-1) of all 17 spectra covering a specific PQ or RQ sub band were fit simultaneously. For the first time in an ethane band, pressure-broadened half-width coefficients were determined for each of the torsional-split components. Constraints were used such that the half-width coefficients of both torsional-split components were identical for a specific broadening gas. No pressure-induced shift coefficients were necessary to fit the spectra to their noise level. The present study revealed for the first time the dependence of self- and N2-broadened half-width coefficients upon the J, K quantum numbers of the transitions in ethane. A number of transitions belonging to the 9+ 4- 4 and the 9+2 4-2 4 hot bands were also observed in the fitted regions and measurements were made when possible.

  4. ARM - AAF ISDAC Field Campaign

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

    govCampaignsISDACVirtual Tour Related Links ISDAC Home AAF Home AVP Aircraft Instrumentation, October 14-16, 2008 ARM Data Discovery Browse Data Post-Campaign Data Sets Flight Summary Table (PDF, 440K) ISDAC Wiki Mission Summary Journal Deployment Resources NSA Site ARM Data Plots Quick Links Experiment Planning ISDAC Proposal Abstract Full Proposal (pdf, 1,735K) Science Questions Science Overview Document for ISDAC (pdf, 525K) ISDAC Flight Planning Document (PDF, 216K) Collaborations Logistics

  5. ARM - Fact Sheets

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

    Campaign (ISDAC)Fact Sheets Related Links ISDAC Home AAF Home AVP Aircraft Instrumentation, October 14-16, 2008 ARM Data Discovery Browse Data Post-Campaign Data Sets Flight Summary Table (PDF, 440K) ISDAC Wiki Mission Summary Journal Deployment Resources NSA Site ARM Data Plots Quick Links Experiment Planning ISDAC Proposal Abstract Full Proposal (pdf, 1,735K) Science Questions Science Overview Document for ISDAC (pdf, 525K) ISDAC Flight Planning Document (PDF, 216K) Collaborations Logistics

  6. ARM - Indirect and Semi-Direct Aerosol Campaign (ISDAC)

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  12. ARM - Radiative Heating in Underexplored Bands Campaign (RHUBC)

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  14. Calibrating and training of neutron based NSA techniques with less SNM standards

    SciTech Connect (OSTI)

    Geist, William H; Swinhoe, Martyn T; Bracken, David S; Freeman, Corey R; Newell, Matthew R

    2010-01-01

    Accessing special nuclear material (SNM) standards for the calibration of and training on nondestructive assay (NDA) instruments has become increasingly difficult in light of enhanced safeguards and security regulations. Limited or nonexistent access to SNM has affected neutron based NDA techniques more than gamma ray techniques because the effects of multiplication require a range of masses to accurately measure the detector response. Neutron based NDA techniques can also be greatly affected by the matrix and impurity characteristics of the item. The safeguards community has been developing techniques for calibrating instrumentation and training personnel with dwindling numbers of SNM standards. Monte Carlo methods have become increasingly important for design and calibration of instrumentation. Monte Carlo techniques have the ability to accurately predict the detector response for passive techniques. The Monte Carlo results are usually benchmarked to neutron source measurements such as californium. For active techniques, the modeling becomes more difficult because of the interaction of the interrogation source with the detector and nuclear material; and the results cannot be simply benchmarked with neutron sources. A Monte Carlo calculated calibration curve for a training course in Indonesia of material test reactor (MTR) fuel elements assayed with an active well coincidence counter (AWCC) will be presented as an example. Performing training activities with reduced amounts of nuclear material makes it difficult to demonstrate how the multiplication and matrix properties of the item affects the detector response and limits the knowledge that can be obtained with hands-on training. A neutron pulse simulator (NPS) has been developed that can produce a pulse stream representative of a real pulse stream output from a detector measuring SNM. The NPS has been used by the International Atomic Energy Agency (IAEA) for detector testing and training applications at the Agency due to the lack of appropriate SNM standards. This paper will address the effect of reduced access to SNM for calibration and training of neutron NDA applications along with the advantages and disadvantages of some solutions that do not use standards, such as the Monte Carlo techniques and the NPS.

  15. Short-Term Arctic Cloud Statistics at NSA from the Infrared Cloud Imager

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    November 2002 1 Short-Term Energy Outlook November 2002 Overview World Oil Markets: During the past 3-4 months, OPEC 10 production has risen more quickly than projected, thus reducing upward pressure on prices. More specifically, while the West Texas Intermediate (WTI) crude oil spot price averaged $28.84 in October, about $6.70 per barrel above the year-ago level (Figure 1), the WTI average price for fourth quarter 2002 is now projected to soften to $28.20, which is about $2 per barrel below

  16. New ARM Data Stream: Surface Images at NSA/AAO Sites in Barrow...

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