National Library of Energy BETA

Sample records for form eia-923 approximately

  1. Form EIA-923 Mock-Ups

    Gasoline and Diesel Fuel Update

    Hours: 2.3 FORM EIA-923 POWER PLANT OPERATIONS REPORT ... purchase received for the use of electricity generation. ... COMPANY SADIE SAFETY CLEAN SALT RIVER PROJECT SAMPSON COAL ...

  2. EIA - 2008 New Electric Power EIA-923 Form Anticipated Questions

    Energy Information Administration (EIA) (indexed site)

    923 Answers to Anticipated Questions for New Form EIA-923, "Power Plant Operations Report" I am currently registered for the survey Form EIA-906 and/or survey Form EIA-920. Will I need to re-register prior to submitting my data for Form EIA-923? No, you will automatically have access to the new Form EIA-923 once the form is open for data collection. What is Form EIA-923 and why has EIA come up with another form for me to fill out? Form EIA-923 replaces Forms EIA-906, EIA-920, EIA-423,

  3. EIA - 2008 New Electric Power EIA-923 Form

    Energy Information Administration (EIA) (indexed site)

    923 Form The New Form EIA-923 combines: Form EIA-906 - Power Plant Report Form EIA-920 - Combined Heat and Power Plant Report Form EIA-423 - Monthly Cost and Quality of Fuels for Electric Plants FERC Form 423 - Monthly Report of Cost and Quality of Fuels for Electric Plants Form EIA-767 - Steam-Electric Plant Operation and Design Report (operational information) What Do I Need to Do? See if you are required to file the EIA-923 Yes? File the EIA-923 electronically No need to re-register if

  4. EIA - 2008 New Electric Power EIA-923 Form Summary of New and Deleted

    Energy Information Administration (EIA) (indexed site)

    Elements 923 Summary of New and Deleted Data Elements for New Form EIA-923, "Power Plant Operations Report" NEW Data Elements On Schedule 2, required information from plants 50 MW and above that consume fossil fuels: Commodity Cost in cents per MMBtu - for coal and natural gas fuels. These data will be kept confidential. Mercury Content in coal, parts per million (ppm) Fuel Transportation Modes - reported by code. For natural gas, either Firm or Interruptible transportation

  5. FORM EIA-923 POWER PLANT OPERATIONS REPORT INSTRUCTIONS

    Gasoline and Diesel Fuel Update

    by-products, operational cooling water data, and operational data for NOx, SO2, ...cooling, steam for purchase or hot water) from a common source. 7. CHP Plant ...

  6. EIA-423 and Schedule 2 of EIA-923

    Energy Information Administration (EIA) (indexed site)

    Survey form EIA-423 collected monthly nonutility fuel receipts and fuel quality files on ... facilities are included at the specific energy source, quantity of fuel delivered, the ...

  7. EIA - 2008 New Electric Power Forms

    Energy Information Administration (EIA) (indexed site)

    industry. figure showing what electricity forms merge into the new forms Click for more information on the New EIA-860 Click for more information on the New EIA-923 Resources to ...

  8. Parallel FE Approximation of the Even/Odd Parity Form of the Linear Boltzmann Equation

    SciTech Connect

    Drumm, Clifton R.; Lorenz, Jens

    1999-07-21

    A novel solution method has been developed to solve the linear Boltzmann equation on an unstructured triangular mesh. Instead of tackling the first-order form of the equation, this approach is based on the even/odd-parity form in conjunction with the conventional mdtigroup discrete-ordinates approximation. The finite element method is used to treat the spatial dependence. The solution method is unique in that the space-direction dependence is solved simultaneously, eliminating the need for the conventional inner iterations, and the method is well suited for massively parallel computers.

  9. Covariant spectator theory for the electromagnetic three-nucleon form factors: Complete impulse approximation

    SciTech Connect

    Pinto, Sérgio Alexandre; Stadler, Alfred; Gross, Franz

    2009-05-01

    We present the first calculations of the electromagnetic form factors of 3He and 3H within the framework of the Covariant Spectator Theory (CST). This first exploratory study concentrates on the sensitivity of the form factors to the strength of the scalar meson-nucleon off-shell coupling, known from previous studies to have a strong influence on the three-body binding energy. Results presented here were obtained using the complete impulse approximation (CIA), which includes contributions of relativistic origin that appear as two-body corrections in a non-relativistic framework, such as "Z-graphs," but omits other two and three-body currents. Finally, we compare our results to non-relativistic calculations augmented by relativistic corrections of O(v/c)2.

  10. Covariant spectator theory for the electromagnetic three-nucleon form factors: Complete impulse approximation

    SciTech Connect

    Pinto, Sergio Alexandre; Stadler, Alfred; Gross, Franz

    2009-05-15

    We present the first calculations of the electromagnetic form factors of {sup 3}He and {sup 3}H within the framework of the Covariant Spectator Theory (CST). This first exploratory study concentrates on the sensitivity of the form factors to the strength of the scalar meson-nucleon off-shell coupling, known from previous studies to have a strong influence on the three-body binding energy. Results presented here were obtained using the complete impulse approximation (CIA), which includes contributions of relativistic origin that appear as two-body corrections in a nonrelativistic framework, such as 'Z-graphs', but omits other two and three-body currents. We compare our results to nonrelativistic calculations augmented by relativistic corrections of O(v/c){sup 2}.

  11. Covariant spectator theory for the electromagnetic three-nucleon form factors: Complete impulse approximation

    SciTech Connect

    Alexandre Pinto, SÂ ergio; Stadler, Alfred; Gross, Franz

    2009-01-01

    We present the first calculations of the electromagnetic form factors of 3He and 3H within the framework of the Covariant Spectator Theory (CST). This first exploratory study concentrates on the sensitivity of the form factors to the strength of the scalar meson-nucleon off-shell coupling, known from previous studies to have a strong influence on the three-body binding energy. Results presented here were obtained using the complete impulse approximation (CIA), which includes contributions of relativistic origin that appear as two-body corrections in a non-relativistic framework, such as ?Z-graphs?, but omits other two and three-body currents. We compare our results to non-relativistic calculations augmented by relativistic corrections of O(v/c)2.

  12. Covariant spectator theory for the electromagnetic three-nucleon form factors: Complete impulse approximation

    SciTech Connect

    Sergio Alexandre Pinto, Alfred Stadler, Franz Gross

    2009-05-01

    We present the first calculations of the electromagnetic form factors of 3He and 3H within the framework of the Covariant Spectator Theory (CST). This first exploratory study concentrates on the sensitivity of the form factors to the strength of the scalar meson-nucleon off-shell coupling, known from previous studies to have a strong influence on the three-body binding energy. Results presented here were obtained using the complete impulse approximation (CIA), which includes contributions of relativistic origin that appear as two-body corrections in a non-relativistic framework, such as #28;Z-graphs#29;, but omits other two and three-body currents. We compare our results to non-relativistic calculations augmented by relativistic corrections of O(v/c)2.

  13. EIA-906 & EIA-920, and EIA-923 Database Notes

    Energy Information Administration (EIA) (indexed site)

    for each plant (e.g., NERC region and census region); adding the operator name and EIA operator ID number; showing nuclear data by unit; adding columns that show consumption ...

  14. U.S. Energy Information Administration | State Energy Data 2014...

    Annual Energy Outlook

    ... B1 (http:www.eia.govstatesedsseds-technical-notes- complete.cfm). * 2001 forward: EIA Form EIA-923, "Power Plant Operations Report" and predecessor forms, http:...

  15. U.S. Energy Information Administration | State Energy Data 2014...

    Annual Energy Outlook

    ... Expenditures," at http:www.eia.govstatesedsseds- technical-notes-complete.cfm. ... and are collected on Form EIA-923, "Power Plant Operations Report," and predecessor forms. ...

  16. State Nuclear Profiles 2010

    Energy Information Administration (EIA) (indexed site)

    Data for 2010 PWR Pressurized Light Water Reactor. Source: Form EIA-860, "Annual Electric Generator Report," and Form EIA-923, "Power Plant Operations Report." Type Commercial ...

  17. State Nuclear Profiles 2010

    Energy Information Administration (EIA) (indexed site)

    Data for 2010 BWR Boiling Water Reactor. Source: Form EIA-860, "Annual Electric Generator Report," and Form EIA-923, "Power Plant Operations Report." Type Commercial operation ...

  18. State Nuclear Profiles 2010

    Energy Information Administration (EIA) (indexed site)

    Data for 2010 BWR Boiling Water Reactor. Source: Form EIA-860, "Annual Electric Generator Report," and Form EIA-923, "Power Plant Operations Report." Type Commercial operation date ...

  19. Annual Electric Utility Data - EIA-906/920/923 Data File

    Annual Energy Outlook

    923 detailed data with previous form data (EIA-906920) The survey Form EIA-923 collects detailed electric power data -- monthly and annually -- on electricity generation, fuel...

  20. Proposed Changes to Electricity and Renewable (Photovoltaic)...

    Gasoline and Diesel Fuel Update

    ... U.S. Energy Information Administration | 2017 Proposed Solar & Electricity Survey Form ... Fuel receipts and costs EIA-923: Natural gas receipts would no longer be reported by ...

  1. Coal Distribution Database, 2008

    Energy Information Administration (EIA) (indexed site)

    Processing Coal Plants and Commercial and Institutional Coal Users" and Form EIA-7A, "Coal Production and Preparation Report." Appendix A Assigning Missing Data to EIA-923...

  2. Electricity Monthly Update

    Annual Energy Outlook

    as collected via the Form EIA-923. Nuclear Outages: Reflects the average daily outage amount for the month as reported by the Nuclear Regulatory Commission's Power Reactor...

  3. Year STB EIA STB EIA

    Annual Energy Outlook

    Data Source: The Surface Transportation Board's 900-Byte Carload Waybill Sample EIA Data Source: Form EIA-923 Power Plant Operations Report Real values derived using the GDP...

  4. U.S. Energy Information Administration | Renewable Energy...

    Annual Energy Outlook

    Renewable electricity net generation by energy source and Census Divisions, 2009 ... due to independent rounding. Source: U.S. Energy Information Administration, Form EIA-923, ...

  5. Charge-conjugation symmetric complete impulse approximation for the pion electromagnetic form factor in the covariant spectator theory

    DOE PAGES [OSTI]

    Biernat, Elmar P.; Gross, Franz; Peña, M. T.; Stadler, Alfred

    2015-10-26

    The pion form factor is calculated in the framework of the charge-conjugation invariant covariant spectator theory. This formalism is established in Minkowski space, and the calculation is set up in momentum space. In a previous calculation we included only the leading pole coming from the spectator quark (referred to as the relativistic impulse approximation). In this study we also include the contributions from the poles of the quark which interacts with the photon and average over all poles in both the upper and lower half-planes in order to preserve charge conjugation invariance (referred to as the C-symmetric complete impulse approximation).more » We find that for small pion mass these contributions are significant at all values of the four-momentum transfer Q2 but, surprisingly, do not alter the shape obtained from the spectator poles alone.« less

  6. Charge-conjugation symmetric complete impulse approximation for the pion electromagnetic form factor in the covariant spectator theory

    SciTech Connect

    Biernat, Elmar P.; Gross, Franz; Peña, M. T.; Stadler, Alfred

    2015-10-26

    The pion form factor is calculated in the framework of the charge-conjugation invariant covariant spectator theory. This formalism is established in Minkowski space, and the calculation is set up in momentum space. In a previous calculation we included only the leading pole coming from the spectator quark (referred to as the relativistic impulse approximation). In this study we also include the contributions from the poles of the quark which interacts with the photon and average over all poles in both the upper and lower half-planes in order to preserve charge conjugation invariance (referred to as the C-symmetric complete impulse approximation). We find that for small pion mass these contributions are significant at all values of the four-momentum transfer Q2 but, surprisingly, do not alter the shape obtained from the spectator poles alone.

  7. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Oklahoma" "Item","Value","Rank" "Primary energy source","Coal", "Net summer capacity (megawatts)",24048,17 " Electric Utilities",17045,17 " IPP & CHP",7003,16 "Net generation (megawatthours)",70155504,22 " Electric Utilities",48096026,19 " IPP & CHP",22059478,14 "Emissions (thousand metric tons)",, " Sulfur Dioxide (short tons)",78556,18 " Nitrogen

  8. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Dakota" "Item","Value","Rank" "Primary energy source","Hydroelectric", "Net summer capacity (megawatts)",3948,45 " Electric Utilities",3450,36 " IPP & CHP",499,48 "Net generation (megawatthours)",10995240,45 " Electric Utilities",9344872,38 " IPP & CHP",1650368,48 "Emissions (thousand metric tons)",, " Sulfur Dioxide (short tons)",13852,35 " Nitrogen

  9. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Washington" "Item","Value","Rank" "Primary energy source","Hydroelectric", "Net summer capacity (megawatts)",30949,10 " Electric Utilities",27376,5 " IPP & CHP",3573,26 "Net generation (megawatthours)",116334363,11 " Electric Utilities",102294256,5 " IPP & CHP",14040107,24 "Emissions (thousand metric tons)",, " Sulfur Dioxide (short tons)",13716,36 "

  10. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Wisconsin" "Item","Value","Rank" "Primary energy source","Coal", "Net summer capacity (megawatts)",17166,23 " Electric Utilities",14377,18 " IPP & CHP",2788,32 "Net generation (megawatthours)",61064796,25 " Electric Utilities",47301782,20 " IPP & CHP",13763014,26 "Emissions (thousand metric tons)",, " Sulfur Dioxide (short tons)",81239,17 " Nitrogen

  11. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Arizona" "Item","Value","Rank" "Primary energy source","Coal", "Net summer capacity (megawatts)",28249,13 " Electric utilities",21311,11 " IPP & CHP",6938,17 "Net generation (megawatthours)",112257187,13 " Electric utilities",94847135,8 " IPP & CHP",17410053,19 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",22597,32 " Nitrogen

  12. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    California" "Item","Value","Rank" "Primary energy source","Natural gas", "Net summer capacity (megawatts)",74646,2 " Electric utilities",28201,4 " IPP & CHP",46446,2 "Net generation (megawatthours)",198807622,5 " Electric utilities",71037135,14 " IPP & CHP",127770487,4 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",3102,46 "

  13. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Colorado" "Item","Value","Rank" "Primary energy source","Coal", "Net summer capacity (megawatts)",14933,29 " Electric utilities",10204,28 " IPP & CHP",4729,18 "Net generation (megawatthours)",53847386,30 " Electric utilities",43239615,26 " IPP & CHP",10607771,30 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",28453,30 " Nitrogen

  14. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Connecticut" "Item","Value","Rank" "Primary energy source","Nuclear", "Net summer capacity (megawatts)",8832,35 " Electric utilities",161,45 " IPP & CHP",8671,12 "Net generation (megawatthours)",33676980,38 " Electric utilities",54693,45 " IPP & CHP",33622288,11 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",1897,47 " Nitrogen

  15. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Delaware" "Item","Value","Rank" "Primary energy source","Natural gas", "Net summer capacity (megawatts)",3086,46 " Electric utilities",102,46 " IPP & CHP",2984,31 "Net generation (megawatthours)",7703584,47 " Electric utilities",49050,46 " IPP & CHP",7654534,35 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",824,48 " Nitrogen

  16. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    District of Columbia" "Item","Value","Rank" "Primary energy source","Natural gas", "Net summer capacity (megawatts)",9,51 " Electric utilities",, " IPP & CHP",9,51 "Net generation (megawatthours)",67612,51 " Electric utilities",, " IPP & CHP",67612,51 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",0,51 " Nitrogen oxide (short

  17. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Florida" "Item","Value","Rank" "Primary energy source","Natural Gas", "Net summer capacity (megawatts)",59440,3 " Electric utilities",51775,1 " IPP & CHP",7665,15 "Net generation (megawatthours)",230015937,2 " Electric utilities",211970587,1 " IPP & CHP",18045350,15 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",126600,10 "

  18. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Georgia" "Item","Value","Rank" "Primary energy source","Coal", "Net summer capacity (megawatts)",38250,7 " Electric utilities",28873,3 " IPP & CHP",9377,10 "Net generation (megawatthours)",125837224,10 " Electric utilities",109523336,4 " IPP & CHP",16313888,20 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",105998,11 " Nitrogen

  19. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Hawaii" "Item","Value","Rank" "Primary energy source","Petroleum", "Net summer capacity (megawatts)",2672,47 " Electric utilities",1732,40 " IPP & CHP",939,45 "Net generation (megawatthours)",10204158,46 " Electric utilities",5517389,39 " IPP & CHP",4686769,40 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",21670,33 " Nitrogen

  20. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Idaho" "Item","Value","Rank" "Primary energy source","Hydroelectric", "Net summer capacity (megawatts)",4944,42 " Electric utilities",3413,37 " IPP & CHP",1531,39 "Net generation (megawatthours)",15184417,43 " Electric utilities",9628016,37 " IPP & CHP",5556400,39 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",5777,42 " Nitrogen

  1. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Illinois" "Item","Value","Rank" "Primary energy source","Nuclear", "Net summer capacity (megawatts)",44727,4 " Electric utilities",5263,35 " IPP & CHP",39464,4 "Net generation (megawatthours)",202143878,4 " Electric utilities",10457398,36 " IPP & CHP",191686480,3 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",187536,6 " Nitrogen

  2. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Indiana" "Item","Value","Rank" "Primary energy source","Coal", "Net summer capacity (megawatts)",27499,14 " Electric utilities",23319,7 " IPP & CHP",4180,23 "Net generation (megawatthours)",115395392,12 " Electric utilities",100983285,6 " IPP & CHP",14412107,22 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",332396,3 " Nitrogen

  3. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Iowa" "Item","Value","Rank" "Primary energy source","Coal", "Net summer capacity (megawatts)",16507,24 " Electric utilities",12655,20 " IPP & CHP",3852,25 "Net generation (megawatthours)",56853282,28 " Electric utilities",43021954,27 " IPP & CHP",13831328,25 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",74422,19 " Nitrogen oxide

  4. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Kansas" "Item","Value","Rank" "Primary energy source","Coal", "Net summer capacity (megawatts)",14227,31 " Electric utilities",11468,24 " IPP & CHP",2759,33 "Net generation (megawatthours)",49728363,31 " Electric utilities",39669629,29 " IPP & CHP",10058734,31 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",31550,29 " Nitrogen

  5. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Kentucky" "Item","Value","Rank" "Primary energy source","Coal", "Net summer capacity (megawatts)",20878,21 " Electric utilities",19473,15 " IPP & CHP",1405,40 "Net generation (megawatthours)",90896435,17 " Electric utilities",90133403,10 " IPP & CHP",763032,49 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",204873,5 " Nitrogen

  6. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Louisiana" "Item","Value","Rank" "Primary energy source","Natural gas", "Net summer capacity (megawatts)",26657,15 " Electric utilities",18120,16 " IPP & CHP",8537,13 "Net generation (megawatthours)",104229402,15 " Electric utilities",58518271,17 " IPP & CHP",45711131,8 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",96240,14 "

  7. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Maine" "Item","Value","Rank" "Primary energy source","Natural gas", "Net summer capacity (megawatts)",4470,43 " Electric utilities",10,49 " IPP & CHP",4460,20 "Net generation (megawatthours)",13248710,44 " Electric utilities",523,49 " IPP & CHP",13248187,27 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",10990,38 " Nitrogen oxide

  8. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Maryland" "Item","Value","Rank" "Primary energy source","Coal", "Net summer capacity (megawatts)",12264,33 " Electric utilities",85,47 " IPP & CHP",12179,8 "Net generation (megawatthours)",37833652,35 " Electric utilities",20260,47 " IPP & CHP",37813392,9 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",41370,26 " Nitrogen oxide

  9. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Massachusetts" "Item","Value","Rank" "Primary energy source","Natural gas", "Net summer capacity (megawatts)",13128,32 " Electric utilities",971,42 " IPP & CHP",12157,9 "Net generation (megawatthours)",31118591,40 " Electric utilities",679986,43 " IPP & CHP",30438606,12 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",6748,41 "

  10. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Michigan" "Item","Value","Rank" "Primary energy source","Coal", "Net summer capacity (megawatts)",30435,12 " Electric utilities",22260,9 " IPP & CHP",8175,14 "Net generation (megawatthours)",106816991,14 " Electric utilities",84075322,12 " IPP & CHP",22741669,13 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",173521,7 " Nitrogen

  11. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Minnesota" "Item","Value","Rank" "Primary energy source","Coal", "Net summer capacity (megawatts)",15621,28 " Electric utilities",11557,22 " IPP & CHP",4064,24 "Net generation (megawatthours)",56998330,27 " Electric utilities",45963271,22 " IPP & CHP",11035059,29 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",39272,27 " Nitrogen

  12. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Mississippi" "Item","Value","Rank" "Primary energy source","Natural gas", "Net summer capacity (megawatts)",16090,26 " Electric utilities",13494,19 " IPP & CHP",2597,34 "Net generation (megawatthours)",55127092,29 " Electric utilities",47084382,21 " IPP & CHP",8042710,34 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",101093,13 "

  13. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Missouri" "Item","Value","Rank" "Primary energy source","Coal", "Net summer capacity (megawatts)",21790,19 " Electric utilities",20538,13 " IPP & CHP",1252,42 "Net generation (megawatthours)",87834468,18 " Electric utilities",85271253,11 " IPP & CHP",2563215,46 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",149842,9 " Nitrogen

  14. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Montana" "Item","Value","Rank" "Primary energy source","Coal", "Net summer capacity (megawatts)",6330,41 " Electric utilities",3209,38 " IPP & CHP",3121,30 "Net generation (megawatthours)",30257616,41 " Electric utilities",12329411,35 " IPP & CHP",17928205,16 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",14426,34 " Nitrogen

  15. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Nebraska" "Item","Value","Rank" "Primary energy source","Coal", "Net summer capacity (megawatts)",8732,36 " Electric utilities",7913,30 " IPP & CHP",819,46 "Net generation (megawatthours)",39431291,34 " Electric utilities",36560960,30 " IPP & CHP",2870331,45 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",63994,22 " Nitrogen oxide

  16. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Nevada" "Item","Value","Rank" "Primary energy source","Natural gas", "Net summer capacity (megawatts)",10485,34 " Electric utilities",8480,29 " IPP & CHP",2006,35 "Net generation (megawatthours)",36000537,37 " Electric utilities",27758728,33 " IPP & CHP",8241809,33 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",10229,40 "

  17. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Hampshire" "Item","Value","Rank" "Primary energy source","Nuclear", "Net summer capacity (megawatts)",4418,44 " Electric utilities",1121,41 " IPP & CHP",3297,28 "Net generation (megawatthours)",19538395,42 " Electric utilities",2085585,41 " IPP & CHP",17452810,18 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",3107,45 " Nitrogen

  18. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Jersey" "Item","Value","Rank" "Primary energy source","Nuclear", "Net summer capacity (megawatts)",19399,22 " Electric utilities",544,43 " IPP & CHP",18854,7 "Net generation (megawatthours)",68051086,23 " Electric utilities",-117003,50 " IPP & CHP",68168089,7 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",3369,44 " Nitrogen oxide

  19. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Mexico" "Item","Value","Rank" "Primary energy source","Coal", "Net summer capacity (megawatts)",8072,39 " Electric utilities",6094,33 " IPP & CHP",1978,37 "Net generation (megawatthours)",32306210,39 " Electric utilities",26422867,34 " IPP & CHP",5883343,38 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",12064,37 " Nitrogen oxide

  20. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    York" "Item","Value","Rank" "Primary energy source","Natural gas", "Net summer capacity (megawatts)",40404,6 " Electric utilities",10989,27 " IPP & CHP",29416,5 "Net generation (megawatthours)",137122202,7 " Electric utilities",34082856,31 " IPP & CHP",103039347,5 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",31878,28 " Nitrogen

  1. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Carolina" "Item","Value","Rank" "Primary energy source","Coal", "Net summer capacity (megawatts)",30498,11 " Electric utilities",26941,6 " IPP & CHP",3557,27 "Net generation (megawatthours)",128143588,9 " Electric utilities",119432144,2 " IPP & CHP",8711444,32 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",64168,21 " Nitrogen

  2. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Dakota" "Item","Value","Rank" "Primary energy source","Coal", "Net summer capacity (megawatts)",6790,40 " Electric utilities",5516,34 " IPP & CHP",1274,41 "Net generation (megawatthours)",36462508,36 " Electric utilities",32088446,32 " IPP & CHP",4374062,42 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",52716,23 " Nitrogen oxide

  3. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Ohio" "Item","Value","Rank" "Primary energy source","Coal", "Net summer capacity (megawatts)",31507,9 " Electric utilities",11134,26 " IPP & CHP",20372,6 "Net generation (megawatthours)",134476405,8 " Electric utilities",43290512,25 " IPP & CHP",91185893,6 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",355108,1 " Nitrogen oxide

  4. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Oregon" "Item","Value","Rank" "Primary energy source","Hydroelectric", "Net summer capacity (megawatts)",15884,27 " Electric utilities",11175,25 " IPP & CHP",4709,19 "Net generation (megawatthours)",60119907,26 " Electric utilities",44565239,24 " IPP & CHP",15554668,21 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",10595,39 "

  5. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Pennsylvania" "Item","Value","Rank" "Primary energy source","Coal", "Net summer capacity (megawatts)",42723,5 " Electric utilities",39,48 " IPP & CHP",42685,3 "Net generation (megawatthours)",221058365,3 " Electric utilities",90994,44 " IPP & CHP",220967371,2 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",297598,4 " Nitrogen

  6. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Rhode Island" "Item","Value","Rank" "Primary energy source","Natural gas", "Net summer capacity (megawatts)",1810,49 " Electric utilities",8,50 " IPP & CHP",1803,38 "Net generation (megawatthours)",6281748,49 " Electric utilities",10670,48 " IPP & CHP",6271078,36 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",100,49 " Nitrogen

  7. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    South Carolina" "Item","Value","Rank" "Primary energy source","Nuclear", "Net summer capacity (megawatts)",22824,18 " Electric utilities",20836,12 " IPP & CHP",1988,36 "Net generation (megawatthours)",97158465,16 " Electric utilities",93547004,9 " IPP & CHP",3611461,43 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",43659,25 "

  8. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Tennessee" "Item","Value","Rank" "Primary energy source","Coal", "Net summer capacity (megawatts)",20998,20 " Electric utilities",20490,14 " IPP & CHP",508,47 "Net generation (megawatthours)",79506886,20 " Electric utilities",76986629,13 " IPP & CHP",2520257,47 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",89357,16 " Nitrogen

  9. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Texas" "Item","Value","Rank" "Primary energy source","Natural gas", "Net summer capacity (megawatts)",112914,1 " Electric utilities",29113,2 " IPP & CHP",83800,1 "Net generation (megawatthours)",437629668,1 " Electric utilities",94974953,7 " IPP & CHP",342654715,1 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",349245,2 " Nitrogen

  10. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Utah" "Item","Value","Rank" "Primary energy source","Coal", "Net summer capacity (megawatts)",8325,38 " Electric utilities",7296,31 " IPP & CHP",1029,44 "Net generation (megawatthours)",43784526,33 " Electric utilities",40741425,28 " IPP & CHP",3043101,44 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",23646,31 " Nitrogen oxide

  11. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Vermont" "Item","Value","Rank" "Primary energy source","Nuclear", "Net summer capacity (megawatts)",650,50 " Electric utilities",337,44 " IPP & CHP",313,49 "Net generation (megawatthours)",7031394,48 " Electric utilities",868079,42 " IPP & CHP",6163315,37 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",70,50 " Nitrogen oxide

  12. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Virginia" "Item","Value","Rank" "Primary energy source","Nuclear", "Net summer capacity (megawatts)",26292,16 " Electric utilities",22062,10 " IPP & CHP",4231,22 "Net generation (megawatthours)",77137438,21 " Electric utilities",62966914,16 " IPP & CHP",14170524,23 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",68550,20 "

  13. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    West Virginia" "Item","Value","Rank" "Primary energy source","Coal", "Net summer capacity (megawatts)",16276,25 " Electric utilities",11981,21 " IPP & CHP",4295,21 "Net generation (megawatthours)",81059577,19 " Electric utilities",63331833,15 " IPP & CHP",17727743,17 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",102406,12 "

  14. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    Wyoming" "Item","Value","Rank" "Primary energy source","Coal", "Net summer capacity (megawatts)",8458,37 " Electric utilities",7233,32 " IPP & CHP",1225,43 "Net generation (megawatthours)",49696183,32 " Electric utilities",45068982,23 " IPP & CHP",4627201,41 "Emissions (thousand metric tons)",, " Sulfur dioxide (short tons)",45704,24 " Nitrogen oxide

  15. "Sources: U.S. Energy Information Administration, Form EIA-860, ""Annual Electric Generator Report."" U.S. Energy Information Administration, Form EIA-861,""Annual Electric Power Industry Report."" U.S. Energy Information Administration, Form EIA-923, ""Power Plant Operations Report"" and predecessor forms."

    Energy Information Administration (EIA) (indexed site)

    United States" "Item","Value" "Primary energy source","Coal" "Net summer capacity (megawatts)",1068422 " Electric utilities",616632 " IPP & CHP",451791 "Net generation (megawatthours)",4093606005 " Electric utilities",2382473495 " IPP & CHP",1711132510 "Emissions (thousand metric tons)", " Sulfur dioxide (short tons)",3842005 " Nitrogen oxide (short

  16. Forms

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

    Access Procedures for New Users Deposition Request Form Exit Form Flycutting Request Form Hot Embossing Request Form Metrology Request Form Microfabrication Project Proposal Form...

  17. State Nuclear Profiles 2010

    Energy Information Administration (EIA) (indexed site)

    Source: Form EIA-860, "Annual Electric Generator Report," and Form EIA-923, "Power Plant ... Nuclear Sta LLC R E Ginna Nuclear Power Plant Unit 1 581 4,948 11.8 R.E. Ginna ...

  18. Comment on Motion of a helical vortex filament in superfluid {sup 4}He under the extrinsic form of the local induction approximation [Phys. Fluids 25, 085101 (2013)

    SciTech Connect

    Hietala, Niklas Hnninen, Risto

    2014-01-15

    We comment on the paper by Van Gorder [Motion of a helical vortex filament in superfluid {sup 4}He under the extrinsic form of the local induction approximation, Phys. Fluids 25, 085101 (2013)]. We point out that the flow of the normal fluid component parallel to the vortex will often lead into the DonnellyGlaberson instability, which will cause the amplification of the Kelvin wave. We explain why the comparison to local nonlinear equation is unreasonable, and remark that neglecting the motion in the x-direction is not reasonable for a Kelvin wave with an arbitrary wavelength and amplitude. The correct equations in the general case are also derived.

  19. State Nuclear Profiles 2010

    Energy Information Administration (EIA) (indexed site)

    Calvert Cliffs Nuclear Power Plant Unit 1, Unit 2 1,705 13,994 100.0 Calvert Cliffs ... "Annual Electric Generator Report," and Form EIA-923, "Power Plant Operations Report." ...

  20. State Nuclear Profiles 2010

    Energy Information Administration (EIA) (indexed site)

    2010 Palo Verde Unit 1, Unit 2, Unit 3 3,937 31,200 100.0 Arizona Public ... "Annual Electric Generator Report," and Form EIA-923, "Power Plant Operations Report." ...

  1. State Nuclear Profiles 2010

    Energy Information Administration (EIA) (indexed site)

    and net generation, 2010 Millstone Unit 2, Unit 3 2,103 16,750 100.0 Dominion Nuclear Conn ... "Annual Electric Generator Report," and Form EIA-923, "Power Plant Operations Report." ...

  2. Origin State Destination State

    Gasoline and Diesel Fuel Update

    W W - - - Wyoming Iowa 12.31 12.03 W W W - No deliveries reported W Data Withheld Source: Form EIA-923 Power Plant Operations Report Real values derived using the GDP...

  3. Origin State Destination State

    Gasoline and Diesel Fuel Update

    W 11.42 12.78 W 11.9 Wyoming Indiana W W - - - Wyoming Iowa 13.36 13.20 W W W - No deliveries reported W Data Withheld Source: Form EIA-923 Power Plant Operations Report...

  4. Form

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

    132014 10:58 AM Submitted by Anonymous User This message was created by a Microsoft InfoPath form. The form data may be included as an attachment. Freedom of Information Act...

  5. Form

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

    9:27 PM Submitted by Anonymous User This message was created by a Microsoft InfoPath form. The form data may be included as an attachment. Freedom of Information Act (FOIA)...

  6. Forms

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

    Forms and Checklists Download or view forms and checklists used at WNR. IWD Forms 2100 - Integrated Work Document (IWD) Part 1, Activity Specific Information (word version) 2100_con - Integrated Work Document (IWD) Part 1, Activity Specific Information Continuation Page (word version) 2101 - Integrated Work Document (IWD) Part 2, FOD Requirements and Approval for Entry and Area Hazards and Controls, Non-Tenant Activity Form (word version) 2102 - Integrated Work Document (IWD) Part 2, FOD

  7. Form

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

    the Privacy Act must be signed and, therefore, cannot be submitted : on this form. t Name Richard van Dijk Email , Orga nizati on Mailin g Addre ss city PA State I P Pion e Ex....

  8. Approximate option pricing

    SciTech Connect

    Chalasani, P.; Saias, I.; Jha, S.

    1996-04-08

    As increasingly large volumes of sophisticated options (called derivative securities) are traded in world financial markets, determining a fair price for these options has become an important and difficult computational problem. Many valuation codes use the binomial pricing model, in which the stock price is driven by a random walk. In this model, the value of an n-period option on a stock is the expected time-discounted value of the future cash flow on an n-period stock price path. Path-dependent options are particularly difficult to value since the future cash flow depends on the entire stock price path rather than on just the final stock price. Currently such options are approximately priced by Monte carlo methods with error bounds that hold only with high probability and which are reduced by increasing the number of simulation runs. In this paper the authors show that pricing an arbitrary path-dependent option is {number_sign}-P hard. They show that certain types f path-dependent options can be valued exactly in polynomial time. Asian options are path-dependent options that are particularly hard to price, and for these they design deterministic polynomial-time approximate algorithms. They show that the value of a perpetual American put option (which can be computed in constant time) is in many cases a good approximation to the value of an otherwise identical n-period American put option. In contrast to Monte Carlo methods, the algorithms have guaranteed error bounds that are polynormally small (and in some cases exponentially small) in the maturity n. For the error analysis they derive large-deviation results for random walks that may be of independent interest.

  9. Response to Comment on Motion of a helical vortex filament in superfluid {sup 4}He under the extrinsic form of the local induction approximation [Phys. Fluids 26, 019101 (2014)

    SciTech Connect

    Van Gorder, Robert A.

    2014-01-15

    I agree with the authors regarding their comments on the Donnelly-Glaberson instability for such helical filaments as those obtained in my paper. I also find merit in their derivation of the quantum LIA (local induction approximation) in the manner of the LIA of Boffetta et al. However, I disagree with the primary criticisms of Hietala and Hnninen. In particular, though they suggest LIA and local nonlinear equation modes are not comparable since the former class of models contains superfluid friction parameters, note that since these parameters are small one may take them to zero and consider a qualitative comparison of the models (which is what was done in my paper). Second, while Hietala and Hnninen criticize certain assumptions made in my paper (and the paper of Shivamoggi where the model comes from) since the results break-down when Ak ? ?, note that in my paper I state that any deviations from the central axis along which the filament is aligned must be sufficiently bounded in variation. Therefore, it was already acknowledged that Ak(=|?{sub x}|) should be sufficiently bounded, precluding the Ak ? ? case. I also show that, despite what Hietala and Hnninen claim, the dispersion relation obtained in my paper is consistent with LIA, where applicable. Finally, while Hietala and Hnninen claim that the dispersion parameter should be complex valued, I show that their dispersion relation is wrong, since it was derived incorrectly (they assume the complex modulus of the potential function is constant, yet then use this to obtain a potential function with non-constant modulus)

  10. Plasma Physics Approximations in Ares

    SciTech Connect

    Managan, R. A.

    2015-01-08

    Lee & More derived analytic forms for the transport properties of a plasma. Many hydro-codes use their formulae for electrical and thermal conductivity. The coefficients are complex functions of Fermi-Dirac integrals, Fn( μ/θ ), the chemical potential, μ or ζ = ln(1+e μ/θ ), and the temperature, θ = kT. Since these formulae are expensive to compute, rational function approximations were fit to them. Approximations are also used to find the chemical potential, either μ or ζ . The fits use ζ as the independent variable instead of μ/θ . New fits are provided for Aα (ζ ),Aβ (ζ ), ζ, f(ζ ) = (1 + e-μ/θ)F1/2(μ/θ), F1/2'/F1/2, Fcα, and Fcβ. In each case the relative error of the fit is minimized since the functions can vary by many orders of magnitude. The new fits are designed to exactly preserve the limiting values in the non-degenerate and highly degenerate limits or as ζ→ 0 or ∞. The original fits due to Lee & More and George Zimmerman are presented for comparison.

  11. Residential Commercial Industrial Electric Power

    Energy Information Administration (EIA) (indexed site)

    63 dollars per thousand cubic feet 0 2 4 6 8 10 12 2011 2012 2013 2014 2015 Residential Commercial Industrial Electric Power Notes: Coverage for prices varies by consumer sector. Prices are in nominal dollars. See Appendix A for further discussion on consumer prices. Sources: Energy Information Administration (EIA), Form EIA-176, "Annual Report of Natural and Supplemental Gas Supply and Disposition"; Form EIA-923, "Power Plant Operations Report"; and Form EIA-910,

  12. SAS Output

    Energy Information Administration (EIA) (indexed site)

    6. Net Generation by Energy Source: Residential Sector, 2014 (Thousand Megawatthours) Distributed Generation Period Estimated Distributed Solar Photovoltaic Generation Annual Totals 2014 4,243 Year 2014 January 226 February 238 March 328 April 361 May 402 June 410 July 431 August 431 September 404 October 382 November 319 December 311 See Glossary for definitions. Values are final. See Technical Notes for a discussion of the sample design for the Form EIA-923 and predecessor forms. Totals may

  13. Service Forms

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

    Service Forms Beamtime Request Form Deposition Request Form Exposure Request Form - pdf Fly Cutting Request Form Hot Embossing Request Form Metrology Request Form...

  14. Approximate circuits for increased reliability

    DOEpatents

    Hamlet, Jason R.; Mayo, Jackson R.

    2015-08-18

    Embodiments of the invention describe a Boolean circuit having a voter circuit and a plurality of approximate circuits each based, at least in part, on a reference circuit. The approximate circuits are each to generate one or more output signals based on values of received input signals. The voter circuit is to receive the one or more output signals generated by each of the approximate circuits, and is to output one or more signals corresponding to a majority value of the received signals. At least some of the approximate circuits are to generate an output value different than the reference circuit for one or more input signal values; however, for each possible input signal value, the majority values of the one or more output signals generated by the approximate circuits and received by the voter circuit correspond to output signal result values of the reference circuit.

  15. Approximate circuits for increased reliability

    DOEpatents

    Hamlet, Jason R.; Mayo, Jackson R.

    2015-12-22

    Embodiments of the invention describe a Boolean circuit having a voter circuit and a plurality of approximate circuits each based, at least in part, on a reference circuit. The approximate circuits are each to generate one or more output signals based on values of received input signals. The voter circuit is to receive the one or more output signals generated by each of the approximate circuits, and is to output one or more signals corresponding to a majority value of the received signals. At least some of the approximate circuits are to generate an output value different than the reference circuit for one or more input signal values; however, for each possible input signal value, the majority values of the one or more output signals generated by the approximate circuits and received by the voter circuit correspond to output signal result values of the reference circuit.

  16. U.S. Energy Information Administration (EIA) - Data

    Gasoline and Diesel Fuel Update

    Find statistics on nuclear operable units, nuclear electricity net generation, nuclear share of electricity net generation, and capacity factor. + EXPAND ALL Nuclear power plants Interactive Daily nuclear status/outages (with annual capacity) Daily status of U.S. nuclear plants with summary and plant-specific data on percentage output, outage amount, and capacity Nuclear electricity generation and capacity Release date: May 26, 2016 | data from: survey forms EIA-923 and EIA-860. State and

  17. JLF Forms

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

    jlf forms JLF Forms JLF Target Fab Request JLF Experiment Worksheet JLF-Experimental Team Registration Form JLF-LLNL Participant Registration Form JLF-External Participant Registration Form JLF-Debriefing Form

  18. Computer Experiments for Function Approximations

    SciTech Connect

    Chang, A; Izmailov, I; Rizzo, S; Wynter, S; Alexandrov, O; Tong, C

    2007-10-15

    This research project falls in the domain of response surface methodology, which seeks cost-effective ways to accurately fit an approximate function to experimental data. Modeling and computer simulation are essential tools in modern science and engineering. A computer simulation can be viewed as a function that receives input from a given parameter space and produces an output. Running the simulation repeatedly amounts to an equivalent number of function evaluations, and for complex models, such function evaluations can be very time-consuming. It is then of paramount importance to intelligently choose a relatively small set of sample points in the parameter space at which to evaluate the given function, and then use this information to construct a surrogate function that is close to the original function and takes little time to evaluate. This study was divided into two parts. The first part consisted of comparing four sampling methods and two function approximation methods in terms of efficiency and accuracy for simple test functions. The sampling methods used were Monte Carlo, Quasi-Random LP{sub {tau}}, Maximin Latin Hypercubes, and Orthogonal-Array-Based Latin Hypercubes. The function approximation methods utilized were Multivariate Adaptive Regression Splines (MARS) and Support Vector Machines (SVM). The second part of the study concerned adaptive sampling methods with a focus on creating useful sets of sample points specifically for monotonic functions, functions with a single minimum and functions with a bounded first derivative.

  19. How to Solve Schroedinger Problems by Approximating the Potential Function

    SciTech Connect

    Ledoux, Veerle; Van Daele, Marnix

    2010-09-30

    We give a survey over the efforts in the direction of solving the Schroedinger equation by using piecewise approximations of the potential function. Two types of approximating potentials have been considered in the literature, that is piecewise constant and piecewise linear functions. For polynomials of higher degree the approximating problem is not so easy to integrate analytically. This obstacle can be circumvented by using a perturbative approach to construct the solution of the approximating problem, leading to the so-called piecewise perturbation methods (PPM). We discuss the construction of a PPM in its most convenient form for applications and show that different PPM versions (CPM,LPM) are in fact equivalent.

  20. Online Forms

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

    Microfabrication | Safety Online Forms, Guidelines & Policies Questions of How to Get Started? - Click here! User Forms: Beamtime Request Form - pdf CAMD Gas Cylinder Request Form - pdf Compressed Gas Purchase Order - pdf Exposure Request Form - pdf (How To Fill the Exposure Request Form?) Format for Annual User Reports - pdf Microfabrication Project Proposal Form - pdf Synchrotron Project Proposal Form - pdf Registration & Test Application for Facility Access & Radiation Badge - pdf

  1. An approximation technique for jet impingement flow

    SciTech Connect

    Najafi, Mahmoud; Fincher, Donald; Rahni, Taeibi; Javadi, KH.; Massah, H.

    2015-03-10

    The analytical approximate solution of a non-linear jet impingement flow model will be demonstrated. We will show that this is an improvement over the series approximation obtained via the Adomian decomposition method, which is itself, a powerful method for analysing non-linear differential equations. The results of these approximations will be compared to the Runge-Kutta approximation in order to demonstrate their validity.

  2. Approximate Bisimulation-Based Reduction of Power System Dynamic Models

    SciTech Connect

    Stankovic, AM; Dukic, SD; Saric, AT

    2015-05-01

    In this paper we propose approximate bisimulation relations and functions for reduction of power system dynamic models in differential- algebraic (descriptor) form. The full-size dynamic model is obtained by linearization of the nonlinear transient stability model. We generalize theoretical results on approximate bisimulation relations and bisimulation functions, originally derived for a class of constrained linear systems, to linear systems in descriptor form. An algorithm for transient stability assessment is proposed and used to determine whether the power system is able to maintain the synchronism after a large disturbance. Two benchmark power systems are used to illustrate the proposed algorithm and to evaluate the applicability of approximate bisimulation relations and bisimulation functions for reduction of the power system dynamic models.

  3. Higher-degree linear approximations of nonlinear systems

    SciTech Connect

    Karahan, S.

    1989-01-01

    In this dissertation, the author develops a new method for obtaining higher degree linear approximations of nonlinear control systems. The standard approach in the analysis and synthesis of nonlinear systems is a first order approximation by a linear model. This is usually performed by obtaining a series expansion of the system at some nominal operating point and retaining only the first degree terms in the series. The accuracy of this approximation depends on how far the system moves away from the normal point, and on the relative magnitudes of the higher degree terms in the series expansion. The approximation is achieved by finding an appropriate nonlinear coordinate transformation-feedback pair to perform the higher degree linearization. With the proposed method, one can improve the accuracy of the approximation up to arbitrarily higher degrees, provided certain solvability conditions are satisfied. The Hunt-Su linearizability theorem makes these conditions precise. This approach is similar to Poincare's Normal Form Theorem in formulation, but different in its solution method. After some mathematical background the author derives a set of equations (called the Homological Equations). A solution to this system of linear equations is equivalent to the solution to the problem of approximate linearization. However, it is generally not possible to solve the system of equations exactly. He outlines a method for systematically finding approximate solutions to these equations using singular value decomposition, while minimizing an error with respect to some defined norm.

  4. FermiCulture Subscription Form

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

    This is a private, announcement-only mail list and will never be used for spamming or discussions. Subscribers receive approximately five emails per month. Use the form below to ...

  5. U.S. Energy Information Administration | Natural Gas Annual

    Energy Information Administration (EIA) (indexed site)

    22 8.0 5.9 5.0 4.4 3.5 0 2 4 6 8 10 12 2011 2012 2013 2014 2015 Sources: Energy Information Administration (EIA), Form EIA-176, "Annual Report of Natural and Supplemental Gas Supply and Disposition"; Form EIA-64A, "Annual Report of the Origin of Natural Gas Liquids Production"; Office of Fossil Energy, U.S. Department of Energy, Natural Gas Imports and Exports; Form EIA-914, "Monthly Natural Gas Production Report"; Form EIA-923, "Power Plant Operations

  6. ARM - Forms

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

    Send Forms To assist researchers in the conduct of field campaigns or required administrative procedures (such as Baseline Change Requests), we provide a number of...

  7. Request Form

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

    The Research Library may not have the resources to handle all requests from the public. Question? 667-5809 Email The Request Form is for internal use only. Login to SSL-Portal, or ...

  8. Form Approved

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

    OGE Form 450, 5 CFR Part 2634, Subpart I U.S. Office of Government Ethics (January 2007) (Replaces September 2002 edition) Form Approved OMB NO. 3209-0006 CONFIDENTIAL FINANCIAL DISCLOSURE REPORT Executive Branch Why Must I File? The duties and responsibilities of your position require you to file the Confidential Financial Disclosure Report to avoid involvement in a real or apparent conflict of interest. The purpose of this report is to assist employees and their agencies in avoiding conflicts

  9. Approximate error conjugation gradient minimization methods

    DOEpatents

    Kallman, Jeffrey S

    2013-05-21

    In one embodiment, a method includes selecting a subset of rays from a set of all rays to use in an error calculation for a constrained conjugate gradient minimization problem, calculating an approximate error using the subset of rays, and calculating a minimum in a conjugate gradient direction based on the approximate error. In another embodiment, a system includes a processor for executing logic, logic for selecting a subset of rays from a set of all rays to use in an error calculation for a constrained conjugate gradient minimization problem, logic for calculating an approximate error using the subset of rays, and logic for calculating a minimum in a conjugate gradient direction based on the approximate error. In other embodiments, computer program products, methods, and systems are described capable of using approximate error in constrained conjugate gradient minimization problems.

  10. Microsoft Word - Figure_02.doc

    Energy Information Administration (EIA) (indexed site)

    6 0.0 0.2 0.4 0.6 0.8 1.0 1.2 2013 2014 2015 2016 2017 Residential Commercial trillion cubic feet Figure 2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 2013 2014 2015 2016 2017 Industrial Electric Power trillion cubic feet Sources: 2013-2015: Energy Information Administration (EIA): Form EIA-857, "Monthly Report of Natural Gas Purchases and Deliveries to Consumers"; Form EIA-923, "Power Plant Operations Report"; EIA computations; and Natural Gas Annual 2015. January 2016 through current

  11. A Survey of Techniques for Approximate Computing

    DOE PAGES [OSTI]

    Mittal, Sparsh

    2016-03-18

    Approximate computing trades off computation quality with the effort expended and as rising performance demands confront with plateauing resource budgets, approximate computing has become, not merely attractive, but even imperative. Here, we present a survey of techniques for approximate computing (AC). We discuss strategies for finding approximable program portions and monitoring output quality, techniques for using AC in different processing units (e.g., CPU, GPU and FPGA), processor components, memory technologies etc., and programming frameworks for AC. Moreover, we classify these techniques based on several key characteristics to emphasize their similarities and differences. Finally, the aim of this paper is tomore » provide insights to researchers into working of AC techniques and inspire more efforts in this area to make AC the mainstream computing approach in future systems.« less

  12. An improved proximity force approximation for electrostatics

    SciTech Connect

    Fosco, Cesar D.; Instituto Balseiro, Universidad Nacional de Cuyo, R8402AGP Bariloche ; Lombardo, Fernando C.; IFIBA ; Mazzitelli, Francisco D.

    2012-08-15

    A quite straightforward approximation for the electrostatic interaction between two perfectly conducting surfaces suggests itself when the distance between them is much smaller than the characteristic lengths associated with their shapes. Indeed, in the so called 'proximity force approximation' the electrostatic force is evaluated by first dividing each surface into a set of small flat patches, and then adding up the forces due two opposite pairs, the contributions of which are approximated as due to pairs of parallel planes. This approximation has been widely and successfully applied in different contexts, ranging from nuclear physics to Casimir effect calculations. We present here an improvement on this approximation, based on a derivative expansion for the electrostatic energy contained between the surfaces. The results obtained could be useful for discussing the geometric dependence of the electrostatic force, and also as a convenient benchmark for numerical analyses of the tip-sample electrostatic interaction in atomic force microscopes. - Highlights: Black-Right-Pointing-Pointer The proximity force approximation (PFA) has been widely used in different areas. Black-Right-Pointing-Pointer The PFA can be improved using a derivative expansion in the shape of the surfaces. Black-Right-Pointing-Pointer We use the improved PFA to compute electrostatic forces between conductors. Black-Right-Pointing-Pointer The results can be used as an analytic benchmark for numerical calculations in AFM. Black-Right-Pointing-Pointer Insight is provided for people who use the PFA to compute nuclear and Casimir forces.

  13. DOE - NNSA/NFO -- Nevada Test Tour Form

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

    NTS Tour Forms NNSANFO Language Options U.S. DOENNSA - Nevada Field Office Nevada National Security Site Tour Forms Groups and individuals wishing to tour the approximately ...

  14. Administrative Forms/Policies

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

    Administrative Forms Microfab Project Proposal Form Exit Form After Hours Request Form

  15. First and second order approximations to stage numbers in multicomponent enrichment cascades

    SciTech Connect

    Scopatz, A.

    2013-07-01

    This paper describes closed form, Taylor series approximations to the number product stages in a multicomponent enrichment cascade. Such closed form approximations are required when a symbolic, rather than a numeric, algorithm is used to compute the optimal cascade state. Both first and second order approximations were implemented. The first order solution was found to be grossly incorrect, having the wrong functional form over the entire domain. On the other hand, the second order solution shows excellent agreement with the 'true' solution over the domain of interest. An implementation of the symbolic, second order solver is available in the free and open source PyNE library. (authors)

  16. Approximations of very weak solutions to boundary-value problems.

    SciTech Connect

    Berggren, Martin Olof

    2003-03-01

    Standard weak solutions to the Poisson problem on a bounded domain have square-integrable derivatives, which limits the admissible regularity of inhomogeneous data. The concept of solution may be further weakened in order to define solutions when data is rough, such as for inhomogeneous Dirichlet data that is only square-integrable over the boundary. Such very weak solutions satisfy a nonstandard variational form (u, v) = G(v). A Galerkin approximation combined with an approximation of the right-hand side G defines a finite-element approximation of the very weak solution. Applying conforming linear elements leads to a discrete solution equivalent to the text-book finite-element solution to the Poisson problem in which the boundary data is approximated by L{sub 2}-projections. The L{sub 2} convergence rate of the discrete solution is O(h{sub s}) for some s {element_of} (0,1/2) that depends on the shape of the domain, asserting a polygonal (two-dimensional) or polyhedral (three-dimensional) domain without slits and (only) square-integrable boundary data.

  17. Approximate inverse preconditioners for general sparse matrices

    SciTech Connect

    Chow, E.; Saad, Y.

    1994-12-31

    Preconditioned Krylov subspace methods are often very efficient in solving sparse linear matrices that arise from the discretization of elliptic partial differential equations. However, for general sparse indifinite matrices, the usual ILU preconditioners fail, often because of the fact that the resulting factors L and U give rise to unstable forward and backward sweeps. In such cases, alternative preconditioners based on approximate inverses may be attractive. We are currently developing a number of such preconditioners based on iterating on each column to get the approximate inverse. For this approach to be efficient, the iteration must be done in sparse mode, i.e., we must use sparse-matrix by sparse-vector type operatoins. We will discuss a few options and compare their performance on standard problems from the Harwell-Boeing collection.

  18. Second derivatives for approximate spin projection methods

    SciTech Connect

    Thompson, Lee M.; Hratchian, Hrant P.

    2015-02-07

    The use of broken-symmetry electronic structure methods is required in order to obtain correct behavior of electronically strained open-shell systems, such as transition states, biradicals, and transition metals. This approach often has issues with spin contamination, which can lead to significant errors in predicted energies, geometries, and properties. Approximate projection schemes are able to correct for spin contamination and can often yield improved results. To fully make use of these methods and to carry out exploration of the potential energy surface, it is desirable to develop an efficient second energy derivative theory. In this paper, we formulate the analytical second derivatives for the Yamaguchi approximate projection scheme, building on recent work that has yielded an efficient implementation of the analytical first derivatives.

  19. Microscopic justification of the equal filling approximation

    SciTech Connect

    Perez-Martin, Sara; Robledo, L. M.

    2008-07-15

    The equal filling approximation, a procedure widely used in mean-field calculations to treat the dynamics of odd nuclei in a time-reversal invariant way, is justified as the consequence of a variational principle over an average energy functional. The ideas of statistical quantum mechanics are employed in the justification. As an illustration of the method, the ground and lowest-lying states of some octupole deformed radium isotopes are computed.

  20. Photoelectron spectroscopy and the dipole approximation

    SciTech Connect

    Hemmers, O.; Hansen, D.L.; Wang, H.

    1997-04-01

    Photoelectron spectroscopy is a powerful technique because it directly probes, via the measurement of photoelectron kinetic energies, orbital and band structure in valence and core levels in a wide variety of samples. The technique becomes even more powerful when it is performed in an angle-resolved mode, where photoelectrons are distinguished not only by their kinetic energy, but by their direction of emission as well. Determining the probability of electron ejection as a function of angle probes the different quantum-mechanical channels available to a photoemission process, because it is sensitive to phase differences among the channels. As a result, angle-resolved photoemission has been used successfully for many years to provide stringent tests of the understanding of basic physical processes underlying gas-phase and solid-state interactions with radiation. One mainstay in the application of angle-resolved photoelectron spectroscopy is the well-known electric-dipole approximation for photon interactions. In this simplification, all higher-order terms, such as those due to electric-quadrupole and magnetic-dipole interactions, are neglected. As the photon energy increases, however, effects beyond the dipole approximation become important. To best determine the range of validity of the dipole approximation, photoemission measurements on a simple atomic system, neon, where extra-atomic effects cannot play a role, were performed at BL 8.0. The measurements show that deviations from {open_quotes}dipole{close_quotes} expectations in angle-resolved valence photoemission are observable for photon energies down to at least 0.25 keV, and are quite significant at energies around 1 keV. From these results, it is clear that non-dipole angular-distribution effects may need to be considered in any application of angle-resolved photoelectron spectroscopy that uses x-ray photons of energies as low as a few hundred eV.

  1. Relativistic Random Phase Approximation At Finite Temperature

    SciTech Connect

    Niu, Y. F.; Paar, N.; Vretenar, D.; Meng, J.

    2009-08-26

    The fully self-consistent finite temperature relativistic random phase approximation (FTRRPA) has been established in the single-nucleon basis of the temperature dependent Dirac-Hartree model (FTDH) based on effective Lagrangian with density dependent meson-nucleon couplings. Illustrative calculations in the FTRRPA framework show the evolution of multipole responses of {sup 132}Sn with temperature. With increased temperature, in both monopole and dipole strength distributions additional transitions appear in the low energy region due to the new opened particle-particle and hole-hole transition channels.

  2. Process to form mesostructured films

    DOEpatents

    Brinker, C. Jeffrey; Anderson, Mark T.; Ganguli, Rahul; Lu, Yunfeng

    1999-01-01

    This invention comprises a method to form a family of supported films film with pore size in the approximate range 0.8-20 nm exhibiting highly ordered microstructures and porosity derived from an ordered micellar or liquid-crystalline organic-inorganic precursor structure that forms during film deposition. Optically transparent, 100-500-nm thick films exhibiting a unique range of microstructures and uni-modal pore sizes are formed in seconds in a continuous coating operation. Applications of these films include sensors, membranes, low dielectric constant interlayers, anti-reflective coatings, and optical hosts.

  3. Process to form mesostructured films

    DOEpatents

    Brinker, C.J.; Anderson, M.T.; Ganguli, R.; Lu, Y.F.

    1999-01-12

    This invention comprises a method to form a family of supported films with pore size in the approximate range 0.8-20 nm exhibiting highly ordered microstructures and porosity derived from an ordered micellar or liquid-crystalline organic-inorganic precursor structure that forms during film deposition. Optically transparent, 100-500-nm thick films exhibiting a unique range of microstructures and uni-modal pore sizes are formed in seconds in a continuous coating operation. Applications of these films include sensors, membranes, low dielectric constant interlayers, anti-reflective coatings, and optical hosts. 12 figs.

  4. APPENDIX A: Forms and Instructions Form Form R93D-44 Form R93D...

    Energy Information Administration (EIA) (indexed site)

    and Instructions Form Form R93D-44 Form R93D-03 Form R93D-59 Instructions Form RT94-02 Form RT94-04 Form RT94-0 Form RT94-03 Form RT94-05 Form RT94-06 Instructions Form...

  5. Coal Distribution Database, 2008

    Energy Information Administration (EIA) (indexed site)

    Electric Utility Combined Heat & Power plants. Commercial Combined Heat & Power and Industrial Combined Heat & Power plants, which also submit data on the EIA-923, are included in...

  6. Semiclassical approximation to supersymmetric quantum gravity

    SciTech Connect

    Kiefer, Claus; Lueck, Tobias; Moniz, Paulo

    2005-08-15

    We develop a semiclassical approximation scheme for the constraint equations of supersymmetric canonical quantum gravity. This is achieved by a Born-Oppenheimer type of expansion, in analogy to the case of the usual Wheeler-DeWitt equation. The formalism is only consistent if the states at each order depend on the gravitino field. We recover at consecutive orders the Hamilton-Jacobi equation, the functional Schroedinger equation, and quantum gravitational correction terms to this Schroedinger equation. In particular, the following consequences are found: (i) the Hamilton-Jacobi equation and therefore the background spacetime must involve the gravitino, (ii) a (many-fingered) local time parameter has to be present on super Riem {sigma} (the space of all possible tetrad and gravitino fields) (iii) quantum supersymmetric gravitational corrections affect the evolution of the very early Universe. The physical meaning of these equations and results, in particular, the similarities to and differences from the pure bosonic case, are discussed.

  7. Magnetic reconnection under anisotropic magnetohydrodynamic approximation

    SciTech Connect

    Hirabayashi, K.; Hoshino, M.

    2013-11-15

    We study the formation of slow-mode shocks in collisionless magnetic reconnection by using one- and two-dimensional collisionless MHD codes based on the double adiabatic approximation and the Landau closure model. We bridge the gap between the Petschek-type MHD reconnection model accompanied by a pair of slow shocks and the observational evidence of the rare occasion of in-situ slow shock observations. Our results showed that once magnetic reconnection takes place, a firehose-sense (p{sub ?}>p{sub ?}) pressure anisotropy arises in the downstream region, and the generated slow shocks are quite weak comparing with those in an isotropic MHD. In spite of the weakness of the shocks, however, the resultant reconnection rate is 10%30% higher than that in an isotropic case. This result implies that the slow shock does not necessarily play an important role in the energy conversion in the reconnection system and is consistent with the satellite observation in the Earth's magnetosphere.

  8. Approximate Model for Turbulent Stagnation Point Flow.

    SciTech Connect

    Dechant, Lawrence

    2016-01-01

    Here we derive an approximate turbulent self-similar model for a class of favorable pressure gradient wedge-like flows, focusing on the stagnation point limit. While the self-similar model provides a useful gross flow field estimate this approach must be combined with a near wall model is to determine skin friction and by Reynolds analogy the heat transfer coefficient. The combined approach is developed in detail for the stagnation point flow problem where turbulent skin friction and Nusselt number results are obtained. Comparison to the classical Van Driest (1958) result suggests overall reasonable agreement. Though the model is only valid near the stagnation region of cylinders and spheres it nonetheless provides a reasonable model for overall cylinder and sphere heat transfer. The enhancement effect of free stream turbulence upon the laminar flow is used to derive a similar expression which is valid for turbulent flow. Examination of free stream enhanced laminar flow suggests that the rather than enhancement of a laminar flow behavior free stream disturbance results in early transition to turbulent stagnation point behavior. Excellent agreement is shown between enhanced laminar flow and turbulent flow behavior for high levels, e.g. 5% of free stream turbulence. Finally the blunt body turbulent stagnation results are shown to provide realistic heat transfer results for turbulent jet impingement problems.

  9. Densified waste form and method for forming

    SciTech Connect

    Garino, Terry J.; Nenoff, Tina M.; Sava Gallis, Dorina Florentina

    2015-08-25

    Materials and methods of making densified waste forms for temperature sensitive waste material, such as nuclear waste, formed with low temperature processing using metallic powder that forms the matrix that encapsulates the temperature sensitive waste material. The densified waste form includes a temperature sensitive waste material in a physically densified matrix, the matrix is a compacted metallic powder. The method for forming the densified waste form includes mixing a metallic powder and a temperature sensitive waste material to form a waste form precursor. The waste form precursor is compacted with sufficient pressure to densify the waste precursor and encapsulate the temperature sensitive waste material in a physically densified matrix.

  10. Densified waste form and method for forming

    DOEpatents

    Garino, Terry J.; Nenoff, Tina M.; Sava Gallis, Dorina Florentina

    2016-05-17

    Materials and methods of making densified waste forms for temperature sensitive waste material, such as nuclear waste, formed with low temperature processing using metallic powder that forms the matrix that encapsulates the temperature sensitive waste material. The densified waste form includes a temperature sensitive waste material in a physically densified matrix, the matrix is a compacted metallic powder. The method for forming the densified waste form includes mixing a metallic powder and a temperature sensitive waste material to form a waste form precursor. The waste form precursor is compacted with sufficient pressure to densify the waste precursor and encapsulate the temperature sensitive waste material in a physically densified matrix.

  11. Bond selective chemistry beyond the adiabatic approximation

    SciTech Connect

    Butler, L.J.

    1993-12-01

    One of the most important challenges in chemistry is to develop predictive ability for the branching between energetically allowed chemical reaction pathways. Such predictive capability, coupled with a fundamental understanding of the important molecular interactions, is essential to the development and utilization of new fuels and the design of efficient combustion processes. Existing transition state and exact quantum theories successfully predict the branching between available product channels for systems in which each reaction coordinate can be adequately described by different paths along a single adiabatic potential energy surface. In particular, unimolecular dissociation following thermal, infrared multiphoton, or overtone excitation in the ground state yields a branching between energetically allowed product channels which can be successfully predicted by the application of statistical theories, i.e. the weakest bond breaks. (The predictions are particularly good for competing reactions in which when there is no saddle point along the reaction coordinates, as in simple bond fission reactions.) The predicted lack of bond selectivity results from the assumption of rapid internal vibrational energy redistribution and the implicit use of a single adiabatic Born-Oppenheimer potential energy surface for the reaction. However, the adiabatic approximation is not valid for the reaction of a wide variety of energetic materials and organic fuels; coupling between the electronic states of the reacting species play a a key role in determining the selectivity of the chemical reactions induced. The work described below investigated the central role played by coupling between electronic states in polyatomic molecules in determining the selective branching between energetically allowed fragmentation pathways in two key systems.

  12. Born-Oppenheimer approximation for open quantum systems within the quantum trajectory approach

    SciTech Connect

    Huang, X. L.; Wu, S. L.; Wang, L. C.; Yi, X. X.

    2010-05-15

    Using the quantum trajectory approach, we extend the Born-Oppenheimer (BO) approximation from closed to open quantum systems, where the open quantum system is described by a master equation in Lindblad form. The BO approximation is defined and the validity condition is derived. We find that the dissipation in fast variables improves the BO approximation, unlike the dissipation in slow variables. A detailed comparison is presented between this extension and our previous approximation based on the effective Hamiltonian approach [X. L. Huang and X. X. Yi, Phys. Rev. A 80, 032108 (2009)]. Several additional features and advantages are analyzed, which show that the two approximations are complementary to each other. Two examples are described to illustrate our method.

  13. Nodal approximations of varying order by energy group for solving the diffusion equation

    SciTech Connect

    Broda, J.T.

    1992-02-01

    The neutron flux across the nuclear reactor core is of interest to reactor designers and others. The diffusion equation, an integro-differential equation in space and energy, is commonly used to determine the flux level. However, the solution of a simplified version of this equation when automated is very time consuming. Since the flux level changes with time, in general, this calculation must be made repeatedly. Therefore solution techniques that speed the calculation while maintaining accuracy are desirable. One factor that contributes to the solution time is the spatial flux shape approximation used. It is common practice to use the same order flux shape approximation in each energy group even though this method may not be the most efficient. The one-dimensional, two-energy group diffusion equation was solved, for the node average flux and core k-effective, using two sets of spatial shape approximations for each of three reactor types. A fourth-order approximation in both energy groups forms the first set of approximations used. The second set used combines a second-order approximation with a fourth-order approximation in energy group two. Comparison of the results from the two approximation sets show that the use of a different order spatial flux shape approximation results in considerable loss in accuracy for the pressurized water reactor modeled. However, the loss in accuracy is small for the heavy water and graphite reactors modeled. The use of different order approximations in each energy group produces mixed results. Further investigation into the accuracy and computing time is required before any quantitative advantage of the use of the second-order approximation in energy group one and the fourth-order approximation in energy group two can be determined.

  14. Forms | Department of Energy

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

    Forms Forms Computer Keyboard Keyboard DOE Forms DOE's forms are developed within the Department and approved by the DOE Forms Manager. The forms provided (below) are designed to serve the needs of two (or more) DOE Headquarters or field organizations. (You must have Adobe Acrobat(R) Reader to view and print the below files. Fillable forms are identified by the "fillable" icon, and require the full version of Adobe Acrobat software.) Forms by Subject Forms by Number Management &

  15. Forms | Department of Energy

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

    Forms Forms The following interactive Web-based forms in Adobe Acrobat Portable Document Format (PDF) are designed for online completion with Acrobat Reader. Input data will ...

  16. Mixed series in ultraspherical polynomials and their approximation properties

    SciTech Connect

    Sharapudinov, I I

    2003-04-30

    New (mixed) series in ultraspherical polynomials P{sub n}{sup {alpha}}{sup ,{alpha}}(x) are introduced. The basic difference between a mixed series in the polynomials P{sub n}{sup {alpha}}{sup ,{alpha}}(x) and a Fourier series in the same polynomials is as follows: a mixed series contains terms of the form (2{sup r}f{sub r,k}{sup {alpha}})/(k+2{alpha}){sup [r]}) P{sub k+r}{sup {alpha}}{sup -r,{alpha}}{sup -r}(x), where 1{<=}r is an integer and f{sub r,k}{sup {alpha}} is the kth Fourier coefficient of the derivative f{sup (r)}(x) with respect to the ultraspherical polynomials P{sub k}{sup {alpha}}{sup ,{alpha}}(x). It is shown that the partial sums Y{sub n+2r}{sup {alpha}}(f,x) of a mixed series in the polynomial P{sub k}{sup {alpha}}{sup ,{alpha}}(x) contrast favourably with Fourier sums S{sub n}{sup {alpha}}(f,x) in the same polynomials as regards their approximation properties in classes of differentiable and analytic functions, and also in classes of functions of variable smoothness. In particular, the Y{sub n+2r}{sup {alpha}}(f,x) can be used for the simultaneous approximation of a function f(x) and its derivatives of orders up to (r- 1), whereas the S{sub n}{sup {alpha}}(f,x) are not suitable for this purpose.

  17. Methods of forming boron nitride

    SciTech Connect

    Trowbridge, Tammy L; Wertsching, Alan K; Pinhero, Patrick J; Crandall, David L

    2015-03-03

    A method of forming a boron nitride. The method comprises contacting a metal article with a monomeric boron-nitrogen compound and converting the monomeric boron-nitrogen compound to a boron nitride. The boron nitride is formed on the same or a different metal article. The monomeric boron-nitrogen compound is borazine, cycloborazane, trimethylcycloborazane, polyborazylene, B-vinylborazine, poly(B-vinylborazine), or combinations thereof. The monomeric boron-nitrogen compound is polymerized to form the boron nitride by exposure to a temperature greater than approximately 100.degree. C. The boron nitride is amorphous boron nitride, hexagonal boron nitride, rhombohedral boron nitride, turbostratic boron nitride, wurzite boron nitride, combinations thereof, or boron nitride and carbon. A method of conditioning a ballistic weapon and a metal article coated with the monomeric boron-nitrogen compound are also disclosed.

  18. Page 8, Benefit Forms

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

    Form - 853 Kb - Allows an employee to enroll or waive health insurance coverage. SF-2817 - Life Insurance Election Form (Federal Employee Group Life Insurance) - 120 Kb - ...

  19. Form OE-417

    Energy Information Administration (EIA) (indexed site)

    Electricity Delivery and Energy Reliability Form OE-417 ELECTRIC EMERGENCY INCIDENT AND DISTURBANCE REPORT Form Approved OMB No. 1901-0288 Approval Expires 03312018 Burden Per...

  20. A Multithreaded Algorithm for Network Alignment Via Approximate...

    Office of Scientific and Technical Information (OSTI)

    The best current approaches are entirely heuristic, and are iterative in nature. They generate real-valued heuristic approximations that must be rounded to find integer solutions. ...

  1. Charge-conjugation symmetric complete impulse approximation for...

    Office of Scientific and Technical Information (OSTI)

    from the spectator quark (referred to as the relativistic impulse approximation). In this study we also include the contributions from the poles of the quark which interacts with ...

  2. ANALOG QUANTUM NEURON FOR FUNCTIONS APPROXIMATION A. EZHOV; A...

    Office of Scientific and Technical Information (OSTI)

    FOR FUNCTIONS APPROXIMATION A. EZHOV; A. KHROMOV; G. BERMAN 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; IMPLEMENTATION; NERVE CELLS; WAVEGUIDES We describe a system able...

  3. Quasiparticle random-phase approximation with interactions from...

    Office of Scientific and Technical Information (OSTI)

    Quasiparticle random-phase approximation with interactions from the Similarity Renormalization Group Citation Details In-Document Search Title: Quasiparticle random-phase ...

  4. Form:SampleForm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    SampleForm Jump to: navigation, search Input the name of a Test Page below. If the resource already exists, you will be able to edit its information. AddEdit a Test Page The text...

  5. Properties of the Boltzmann equation in the classical approximation

    SciTech Connect

    Epelbaum, Thomas; Gelis, François; Tanji, Naoto; Wu, Bin

    2014-12-30

    We examine the Boltzmann equation with elastic point-like scalar interactions in two different versions of the the classical approximation. Although solving numerically the Boltzmann equation with the unapproximated collision term poses no problem, this allows one to study the effect of the ultraviolet cutoff in these approximations. This cutoff dependence in the classical approximations of the Boltzmann equation is closely related to the non-renormalizability of the classical statistical approximation of the underlying quantum field theory. The kinetic theory setup that we consider here allows one to study in a much simpler way the dependence on the ultraviolet cutoff, since one has also access to the non-approximated result for comparison.

  6. Properties of the Boltzmann equation in the classical approximation

    DOE PAGES [OSTI]

    Epelbaum, Thomas; Gelis, François; Tanji, Naoto; Wu, Bin

    2014-12-30

    We examine the Boltzmann equation with elastic point-like scalar interactions in two different versions of the the classical approximation. Although solving numerically the Boltzmann equation with the unapproximated collision term poses no problem, this allows one to study the effect of the ultraviolet cutoff in these approximations. This cutoff dependence in the classical approximations of the Boltzmann equation is closely related to the non-renormalizability of the classical statistical approximation of the underlying quantum field theory. The kinetic theory setup that we consider here allows one to study in a much simpler way the dependence on the ultraviolet cutoff, since onemore » has also access to the non-approximated result for comparison.« less

  7. Properties of the Boltzmann equation in the classical approximation

    SciTech Connect

    Tanji, Naoto; Epelbaum, Thomas; Gelis, Francois; Wu, Bin

    2014-12-30

    We study the Boltzmann equation with elastic point-like scalar interactions in two different versions of the the classical approximation. Although solving numerically the Boltzmann equation with the unapproximated collision term poses no problem, this allows one to study the effect of the ultraviolet cutoff in these approximations. This cutoff dependence in the classical approximations of the Boltzmann equation is closely related to the non-renormalizability of the classical statistical approximation of the underlying quantum field theory. The kinetic theory setup that we consider here allows one to study in a much simpler way the dependence on the ultraviolet cutoff, since one has also access to the non-approximated result for comparison.

  8. Improved approximate formulas for flux from cylindrical and rectangular sources

    SciTech Connect

    Wallace, O.J.; Bokharee, S.A.

    1993-03-01

    This report provides two new approximate formulas for the flux at detector points outside the radial and axial extensions of a homogeneous cylindrical source and improved approximate formulas for the flux at points opposite rectangular surface sources. These formulas extend the range of geometries for which analytic approximations may be used by shield design engineers to make rapid scoping studies and check more extensive calculations for reasonableness. These formulas can be used to support skeptical, independent evaluations and are also valuable teaching tools for introducing shield designers to complex shield analyses.

  9. Communication: Improved pair approximations in local coupled-cluster methods

    SciTech Connect

    Schwilk, Max; Werner, Hans-Joachim; Usvyat, Denis

    2015-03-28

    In local coupled cluster treatments the electron pairs can be classified according to the magnitude of their energy contributions or distances into strong, close, weak, and distant pairs. Different approximations are introduced for the latter three classes. In this communication, an improved simplified treatment of close and weak pairs is proposed, which is based on long-range cancellations of individually slowly decaying contributions in the amplitude equations. Benchmark calculations for correlation, reaction, and activation energies demonstrate that these approximations work extremely well, while pair approximations based on local second-order Møller-Plesset theory can lead to errors that are 1-2 orders of magnitude larger.

  10. 2015 Electricity Form Proposals

    Gasoline and Diesel Fuel Update

    (Photovoltaic) Survey Forms November 19, 2015 In early 2016 the U.S. Energy Information ... Details will be provided closer to that date. Proposed changes as of December 2015 Forms ...

  11. FOIA Request Form

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

    DOEID Home > FOIA > FOIA Request Form U.S. Department of Energy Idaho (DOE-ID) Operations Office Electronic FOIA Request Form* To make an Electronic FOIA (E-FOIA) request, please...

  12. Standard Form 120

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

    1 OF STANDARD FORM 120 REV. APRIL 1957 GEN. SERV. ADMIN. FPMR (41 CFR) 101-43.311 ... NUMBER FAIR % ITEM DESCRIPTION PER UNIT TOTAL NO. (a) (b) (f) (g) STANDARD FORM 120 REV. ...

  13. DVU Training News Form

    Energy.gov [DOE] (indexed site)

    Training News Form Please complete this form in its entirety and email to ... For Web Team Only NODE DOE F 360.9 (092014) Guidance for Posting to "Training News" ...

  14. Form OE-417

    Energy Information Administration (EIA) (indexed site)

    | U.S. Department of Energy Electricity Delivery and Energy Reliability Form OE-417|ELECTRIC EMERGENCY INCIDENT AND DISTURBANCE REPORT|Form Approved OMB No. 1901-0288 Approval...

  15. ARM - Ingest Readiness Form

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

    FormsIngest Readiness Form Ingest Ingest Workflow Graphic Supporting Workflow Documentation Supporting Tools and Forms Process Configuration Manager (PCM) Metadata Management Tool (MMT) ARM Data Integrator (ADI) Ingest Readiness Form Associated Status Reports Contacts Engineering Processes Engineering Home Workflow Graphic Engineering Workflow Document Tools for Workflow ECR ECO BCR Ingests Value-Added Products Reprocessing Instruments Data System Elements Field Campaign Startup Ingest Readiness

  16. ORSSAB Membership Application Form

    Energy.gov [DOE]

    Resident interested in joining the Oak Ridge Site Specific Advisory Board should complete and submit the included form.

  17. OCPR Forms | Department of Energy

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

    OCPR Forms OCPR Forms Technology Transfer Reporting Form Agreement to Mediate Form Instructions: Fill out the form and e-mail the completed document to Office of Conflict ...

  18. Method for forming ammonia

    DOEpatents

    Kong, Peter C.; Pink, Robert J.; Zuck, Larry D.

    2008-08-19

    A method for forming ammonia is disclosed and which includes the steps of forming a plasma; providing a source of metal particles, and supplying the metal particles to the plasma to form metal nitride particles; and providing a substance, and reacting the metal nitride particles with the substance to produce ammonia, and an oxide byproduct.

  19. Paperwork Reductin Act Form

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

    PAPERWORK REDUCTION ACT COLLECTION DISCONTINUATION FORM Agency/Subagency OMB Control Number __ __ __ __ - __ __ __ __ Title of Collection: Current Expiration Date Month/Year Requested Expiration Date to Discontinue Collection Month/Year Reason for Discontinuation: Signature of Senior Official or Designee: Date: For OIRA Use ________________________ ________________________ OMB FORM 83-D, 10/04 Reset Form

  20. Low temperature waste form process intensification

    SciTech Connect

    Fox, K. M.; Cozzi, A. D.; Hansen, E. K.; Hill, K. A.

    2015-09-30

    This study successfully demonstrated process intensification of low temperature waste form production. Modifications were made to the dry blend composition to enable a 50% increase in waste concentration, thus allowing for a significant reduction in disposal volume and associated costs. Properties measurements showed that the advanced waste form can be produced using existing equipment and processes. Performance of the waste form was equivalent or better than the current baseline, with approximately double the amount of waste incorporation. The results demonstrate the feasibility of significantly accelerating low level waste immobilization missions across the DOE complex and at environmental remediation sites worldwide.

  1. Summary of Time Period-Based and Other Approximation Methods...

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

    ... updates previous work that describes time period-based and other approximation methods for estimating the capacity value of wind power and extends it to include solar power 1, 2. ...

  2. Exact and approximate Kohn-Sham potentials in ensemble density...

    Office of Scientific and Technical Information (OSTI)

    Title: Exact and approximate Kohn-Sham potentials in ensemble density-functional theory Authors: Yang, Zeng-hui ; Trail, John R. ; Pribram-Jones, Aurora ; Burke, Kieron ; Needs, ...

  3. Second post-Newtonian approximation of Einstein-aether theory

    SciTech Connect

    Xie Yi; Huang Tianyi

    2008-06-15

    In this paper, second post-Newtonian approximation of Einstein-aether theory is obtained by Chandrasekhar's approach. Five parametrized post-Newtonian parameters in first post-Newtonian approximation are presented after a time transformation and they are identical with previous works, in which {gamma}=1, {beta}=1, and two preferred-frame parameters remain. Meanwhile, in second post-Newtonian approximation, a parameter, which represents third order nonlinearity for gravity, is zero--the same as in general relativity. For an application for future deep space laser ranging missions, we reduce the metric coefficients for light propagation in a case of N point masses as a simplified model of the Solar System. The resulting light deflection angle in second post-Newtonian approximation poses another constraint on the Einstein-aether theory.

  4. Integral approximations to classical diffusion and smoothed particle hydrodynamics

    DOE PAGES [OSTI]

    Du, Qiang; Lehoucq, R. B.; Tartakovsky, A. M.

    2014-12-31

    The contribution of the paper is the approximation of a classical diffusion operator by an integral equation with a volume constraint. A particular focus is on classical diffusion problems associated with Neumann boundary conditions. By exploiting this approximation, we can also approximate other quantities such as the flux out of a domain. Our analysis of the model equation on the continuum level is closely related to the recent work on nonlocal diffusion and peridynamic mechanics. In particular, we elucidate the role of a volumetric constraint as an approximation to a classical Neumann boundary condition in the presence of physical boundary.more » The volume-constrained integral equation then provides the basis for accurate and robust discretization methods. As a result, an immediate application is to the understanding and improvement of the Smoothed Particle Hydrodynamics (SPH) method.« less

  5. Explicit approximations to estimate the perturbative diffusivity in the presence of convectivity and damping. II. Semi-infinite cylindrical approximations

    SciTech Connect

    Berkel, M. van; Hogeweij, G. M. D.; Tamura, N.; Ida, K.; Zwart, H. J.; Inagaki, S.; Baar, M. R. de

    2014-11-15

    In this paper, a number of new explicit approximations are introduced to estimate the perturbative diffusivity (χ), convectivity (V), and damping (τ) in a cylindrical geometry. For this purpose, the harmonic components of heat waves induced by localized deposition of modulated power are used. The approximations are based upon the heat equation in a semi-infinite cylindrical domain. The approximations are based upon continued fractions, asymptotic expansions, and multiple harmonics. The relative error for the different derived approximations is presented for different values of frequency, transport coefficients, and dimensionless radius. Moreover, it is shown how combinations of different explicit formulas can yield good approximations over a wide parameter space for different cases, such as no convection and damping, only damping, and both convection and damping. This paper is the second part (Part II) of a series of three papers. In Part I, the semi-infinite slab approximations have been treated. In Part III, cylindrical approximations are treated for heat waves traveling towards the center of the plasma.

  6. Methods of forming steel

    DOEpatents

    Branagan, Daniel J.; Burch, Joseph V.

    2001-01-01

    In one aspect, the invention encompasses a method of forming a steel. A metallic glass is formed and at least a portion of the glass is converted to a crystalline steel material having a nanocrystalline scale grain size. In another aspect, the invention encompasses another method of forming a steel. A molten alloy is formed and cooled the alloy at a rate which forms a metallic glass. The metallic glass is devitrified to convert the glass to a crystalline steel material having a nanocrystalline scale grain size. In yet another aspect, the invention encompasses another method of forming a steel. A first metallic glass steel substrate is provided, and a molten alloy is formed over the first metallic glass steel substrate to heat and devitrify at least some of the underlying metallic glass of the substrate.

  7. Explicit approximations to estimate the perturbative diffusivity in the presence of convectivity and damping. I. Semi-infinite slab approximations

    SciTech Connect

    Berkel, M. van; Zwart, H. J.; Tamura, N.; Ida, K.; Hogeweij, G. M. D.; Inagaki, S.; Baar, M. R. de

    2014-11-15

    In this paper, a number of new approximations are introduced to estimate the perturbative diffusivity (χ), convectivity (V), and damping (τ) in cylindrical geometry. For this purpose, the harmonic components of heat waves induced by localized deposition of modulated power are used. The approximations are based on semi-infinite slab approximations of the heat equation. The main result is the approximation of χ under the influence of V and τ based on the phase of two harmonics making the estimate less sensitive to calibration errors. To understand why the slab approximations can estimate χ well in cylindrical geometry, the relationships between heat transport models in slab and cylindrical geometry are studied. In addition, the relationship between amplitude and phase with respect to their derivatives, used to estimate χ, is discussed. The results are presented in terms of the relative error for the different derived approximations for different values of frequency, transport coefficients, and dimensionless radius. The approximations show a significant region in which χ, V, and τ can be estimated well, but also regions in which the error is large. Also, it is shown that some compensation is necessary to estimate V and τ in a cylindrical geometry. On the other hand, errors resulting from the simplified assumptions are also discussed showing that estimating realistic values for V and τ based on infinite domains will be difficult in practice. This paper is the first part (Part I) of a series of three papers. In Part II and Part III, cylindrical approximations based directly on semi-infinite cylindrical domain (outward propagating heat pulses) and inward propagating heat pulses in a cylindrical domain, respectively, will be treated.

  8. Adoption Assistance Claim Form

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

    Certification for Reimbursement Complete all information in this section (child's name, birth date, date child was placed in the employee's home). Send form to the address...

  9. User Financial Account Form

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

    22013 User Financial Account Form Establish a user financial account at SLAC to procure gases, chemicals, supplies or services to support your experiment at SLAC's user ...

  10. User Financial Account Form

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

    102115 User Financial Account Form Establish a user financial account at SLAC to procure gases, chemicals, supplies or services to support your experiment at SLAC's user ...

  11. Procurement Forms | NREL

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

    RFPs relating to construction projects require additional documentation and are located in the "Construction Specific Forms" tab. Representations and Certifications Representations ...

  12. Benefits Forms & Required Notices

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

    Contributions, 3027 (pdf) Universal Beneficiary Designation Change Form, 1938 (pdf) Notices Health Insurance Marketplace Coverage (pdf) HIPAA Special Enrollment Rights Notice (pdf

  13. Product Information Form

    Energy.gov [DOE]

    When planning to present a new product to the EERE Product Governance Team, complete this product information form and email it to ee.communications@ee.doe.gov.

  14. OFFSITE USE FORM

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

    OFFSITE USE FORM Fill form out in triplicate, send original to Property Control, m/s 85A, give a copy to the Gate Guard and keep a copy for your files. This form needs to be updated once a year. Stanford Linear Accelerator Center Authorization Record Form: Stanford University Removal of Government Property from SLAC PO Box 4349 premises for Official Use Elsewhere (*) Date: To: Property Control, m/s 85A From: Name E Mail Address Group and Mail Stop SLAC Extension This is to notify you that I have

  15. 2013 Electricity Form Proposals

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

    Form EIA-861, "Annual Electric Power Industry Report" The EIA-861 survey has historically collected retail sales, revenue, and a variety of information related to demand response ...

  16. SGP Shipment Notification Form

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

    PlainsShipment Notification Form SGP Related Links Virtual Tour Facilities and Instruments Central Facility Boundary Facility Extended Facility Intermediate Facility Radiometric...

  17. Variational principles with Pad approximants for tearing mode analysis

    SciTech Connect

    Cole, Andrew J.; Finn, John M.

    2014-03-15

    Tearing modes occur in several distinct physical regimes, and it is often important to compute the inner layer response for these modes with various effects. There is a need for an approximate and efficient method of solving the inner layer equations in all these regimes. In this paper, we introduce a method of solving the inner layer equations based on using a variational principle with Pad approximants. For all the regimes considered, the main layer equations to be solved are inhomogeneous, and Pad approximants give a convenient and efficient method of satisfying the correct asymptotic behavior at the edge of the layer. Results using this variational principlePad approximant method in three of these regimes is presented. These regimes are the constant-? resistive-inertial (RI) regime, the constant-? viscoresistive regime, and the non-constant-? inviscid tearing regime. The last regime includes the constant-? RI regime and the inertial regime. The results show that reasonable accuracy can be obtained very efficiently with Pad approximants having a small number of parameters.

  18. Massive neutrinos in cosmology: Analytic solutions and fluid approximation

    SciTech Connect

    Shoji, Masatoshi; Komatsu, Eiichiro

    2010-06-15

    We study the evolution of linear density fluctuations of free-streaming massive neutrinos at redshift of z<1000, with an explicit justification on the use of a fluid approximation. We solve the collisionless Boltzmann equation in an Einstein de-Sitter (EdS) universe, truncating the Boltzmann hierarchy at l{sub max}=1 and 2, and compare the resulting density contrast of neutrinos {delta}{sub {nu}}{sup fluid} with that of the exact solutions of the Boltzmann equation that we derive in this paper. Roughly speaking, the fluid approximation is accurate if neutrinos were already nonrelativistic when the neutrino density fluctuation of a given wave number entered the horizon. We find that the fluid approximation is accurate at subpercent levels for massive neutrinos with m{sub {nu}>}0.05 eV at the scale of k < or approx. 1.0h Mpc{sup -1} and redshift of z<100. This result validates the use of the fluid approximation, at least for the most massive species of neutrinos suggested by the neutrino oscillation experiments. We also find that the density contrast calculated from fluid equations (i.e., continuity and Euler equations) becomes a better approximation at a lower redshift, and the accuracy can be further improved by including an anisotropic stress term in the Euler equation. The anisotropic stress term effectively increases the pressure term by a factor of 9/5.

  19. State Nuclear Profiles 2010

    Energy Information Administration (EIA) (indexed site)

    5 Iowa Iowa total electric power industry, summer capacity and net generation, by energy source, 2010 Nuclear 601 4.1 4,451 7.7 Coal 6,956 47.7 41,283 71.8 Hydro and Pumped Storage 144 1.0 948 1.6 Natural Gas 2,299 15.8 1,312 2.3 Other Renewable 1 3,584 24.6 9,360 16.3 Petroleum 1,007 6.9 154 0.3 Total 14,592 100.0 57,509 100.0 Source: Form EIA-860, "Annual Electric Generator Report," and Form EIA-923, "Power Plant Operations Report." Share of State total (percent) 1

  20. State Nuclear Profiles 2010

    Energy Information Administration (EIA) (indexed site)

    20 Kansas Kansas total electric power industry, summer capacity and net generation, by energy source, 2010 Nuclear 1,160 9.2 9,556 19.9 Coal 5,179 41.3 32,505 67.8 Hydro and Pumped Storage 3 * 13 * Natural Gas 4,573 36.5 2,287 4.8 Other Renewable 1 1,079 8.6 3,459 7.2 Petroleum 550 4.4 103 0.2 Total 12,543 100.0 47,924 100.0 * = Absolute percentage less than 0.05. Source: Form EIA-860, "Annual Electric Generator Report," and Form EIA-923, "Power Plant Operations Report."

  1. State Nuclear Profiles 2010

    Energy Information Administration (EIA) (indexed site)

    7 Nebraska Nebraska total electric power industry, summer capacity and net generation, by energy source, 2010 Nuclear 1,245 15.8 11,054 30.2 Coal 3,932 50.0 23,363 63.8 Hydro and Pumped Storage 278 3.5 1,314 3.6 Natural Gas 1,849 23.5 375 1.0 Other Renewable 1 165 2.1 493 1.3 Petroleum 387 4.9 31 0.1 Total 7,857 100.0 36,630 100.0 Source: Form EIA-860, "Annual Electric Generator Report," and Form EIA-923, "Power Plant Operations Report." Share of State total (percent) 1

  2. State Nuclear Profiles 2010

    Energy Information Administration (EIA) (indexed site)

    60 Vermont Vermont total electric power industry, summer capacity and net generation, by energy source, 2010 Nuclear 620 55.0 4,782 72.2 Hydro and Pumped Storage 324 28.7 1,347 20.3 Natural Gas - - 4 0.1 Other Renewable 1 84 7.5 482 7.3 Petroleum 100 8.9 5 0.1 Total 1,128 100.0 6,620 100.0 - = No data reported. Source: Form EIA-860, "Annual Electric Generator Report," and Form EIA-923, "Power Plant Operations Report." Share of State total (percent) 1 Municipal Solid Waste net

  3. Fokker-Planck approximation of monoenergetic transport processes

    SciTech Connect

    Boergers, C.; Larsen, E.W.

    1994-12-31

    For transport problems with highly forward-peaked scattering, the transport equation is often approximated by the Fokker-Planck equation or, if large-angle scattering is deemed sufficiently important, by the Boltzmann-Fokker-Planck equation. In this paper, we state a simple, necessary, and sufficient condition for the validity of the simpler Fokker-Planck approximation for monoenergetic particle transport. We also show that for screened Rutherford scattering, the Fokker-Planck approximation is only marginally valid and is inaccurate unless the scattering is extremely forward peaked. (The same is true for more sophisticated models of elastic scattering of charged particles. In this paper, we restrict ourselves to screened Rutherford scattering for simplicity). More details on the results presented here will be given in forthcoming publications.

  4. Method of forming nanodielectrics

    DOEpatents

    Tuncer, Enis [Knoxville, TN; Polyzos, Georgios [Oak Ridge, TN

    2014-01-07

    A method of making a nanoparticle filled dielectric material. The method includes mixing nanoparticle precursors with a polymer material and reacting the nanoparticle mixed with the polymer material to form nanoparticles dispersed within the polymer material to form a dielectric composite.

  5. Paperwork Reduction Act Forms

    Office of Energy Efficiency and Renewable Energy (EERE)

    You may need to fill out one or several of these forms depending on the nature of your survey or usability project. See the Paperwork Reduction Act Web page for more information about the process. Contact the Web Usability Coordinator if you have questions about which forms to complete.

  6. Method for forming materials

    DOEpatents

    Tolle, Charles R.; Clark, Denis E.; Smartt, Herschel B.; Miller, Karen S.

    2009-10-06

    A material-forming tool and a method for forming a material are described including a shank portion; a shoulder portion that releasably engages the shank portion; a pin that releasably engages the shoulder portion, wherein the pin defines a passageway; and a source of a material coupled in material flowing relation relative to the pin and wherein the material-forming tool is utilized in methodology that includes providing a first material; providing a second material, and placing the second material into contact with the first material; and locally plastically deforming the first material with the material-forming tool so as mix the first material and second material together to form a resulting material having characteristics different from the respective first and second materials.

  7. On the approximation of crack shapes found during inservice inspection

    SciTech Connect

    Bhate, S.R.; Chawla, D.S.; Kushwaha, H.S.

    1997-04-01

    This paper addresses the characterization of axial internal flaw found during inservice inspection of a pipe. J-integral distribution for various flaw shapes is obtained using line spring finite, element method. The peak J-value and its distribution across the crack is found to be characteristic feature of each shape. The triangular shape yields peak J-value away from the center, the point of depth. The elliptic approximation results in large overestimate of J-value for unsymmetric flaws. Triangular approximation is recommended for such flaws so that further service can be obtained from the component.

  8. Trigonometric Pade approximants for functions with regularly decreasing Fourier coefficients

    SciTech Connect

    Labych, Yuliya A; Starovoitov, Alexander P [Gomel State University, Gomel (Belarus)

    2009-08-31

    Sufficient conditions describing the regular decrease of the coefficients of a Fourier series f(x)=a{sub 0}/2 + {sigma} a{sub n} cos kx are found which ensure that the trigonometric Pade approximants {pi}{sup t}{sub n,m}(x;f) converge to the function f in the uniform norm at a rate which coincides asymptotically with the highest possible one. The results obtained are applied to problems dealing with finding sharp constants for rational approximations. Bibliography: 31 titles.

  9. Bose gases, Bose–Einstein condensation, and the Bogoliubov approximation

    SciTech Connect

    Seiringer, Robert

    2014-07-15

    We review recent progress towards a rigorous understanding of the Bogoliubov approximation for bosonic quantum many-body systems. We focus, in particular, on the excitation spectrum of a Bose gas in the mean-field (Hartree) limit. A list of open problems will be discussed at the end.

  10. On the mathematical treatment of the Born-Oppenheimer approximation

    SciTech Connect

    Jecko, Thierry

    2014-05-15

    Motivated by the paper by Sutcliffe and Woolley [“On the quantum theory of molecules,” J. Chem. Phys. 137, 22A544 (2012)], we present the main ideas used by mathematicians to show the accuracy of the Born-Oppenheimer approximation for molecules. Based on mathematical works on this approximation for molecular bound states, in scattering theory, in resonance theory, and for short time evolution, we give an overview of some rigorous results obtained up to now. We also point out the main difficulties mathematicians are trying to overcome and speculate on further developments. The mathematical approach does not fit exactly to the common use of the approximation in Physics and Chemistry. We criticize the latter and comment on the differences, contributing in this way to the discussion on the Born-Oppenheimer approximation initiated by Sutcliffe and Woolley. The paper neither contains mathematical statements nor proofs. Instead, we try to make accessible mathematically rigourous results on the subject to researchers in Quantum Chemistry or Physics.

  11. Hyperspherical Sparse Approximation Techniques for High-Dimensional Discontinuity Detection

    DOE PAGES [OSTI]

    Zhang, Guannan; Webster, Clayton G.; Gunzburger, Max; Burkardt, John

    2016-08-04

    This work proposes a hyperspherical sparse approximation framework for detecting jump discontinuities in functions in high-dimensional spaces. The need for a novel approach results from the theoretical and computational inefficiencies of well-known approaches, such as adaptive sparse grids, for discontinuity detection. Our approach constructs the hyperspherical coordinate representation of the discontinuity surface of a function. Then sparse approximations of the transformed function are built in the hyperspherical coordinate system, with values at each point estimated by solving a one-dimensional discontinuity detection problem. Due to the smoothness of the hypersurface, the new technique can identify jump discontinuities with significantly reduced computationalmore » cost, compared to existing methods. Several approaches are used to approximate the transformed discontinuity surface in the hyperspherical system, including adaptive sparse grid and radial basis function interpolation, discrete least squares projection, and compressed sensing approximation. Moreover, hierarchical acceleration techniques are also incorporated to further reduce the overall complexity. In conclusion, rigorous complexity analyses of the new methods are provided, as are several numerical examples that illustrate the effectiveness of our approach.« less

  12. ORPS Facility Registration Form

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

    ORPS FACILITY REGISTRATION FORM Submit completed form to: U.S. Department of Energy AU User Support EMAIL: ORPSsupport@hq.doe.gov PHONE: 800-473-4375 FAX: 301-903-9823 Note:  Only one facility per form  Type or print all entries 1. TYPE OF CHANGE  Add a Facility (Complete Section 1.A, then go to Section 2)  Change a Facility (Complete Section 1.B, then go to Section)  Delete a Facility (Complete Section 1.C, then go to Section 2) A. Add a New Facility Use this section if you are

  13. Supplier, Vendor Forms

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

    Supplier, Vendor Forms Supplier, Vendor Forms As a premier national research and development laboratory, LANL seeks to do business with qualified companies that offer value and high quality products and services. Contact Small Business Office (505) 667-4419 Email Form No. Name Revision# Revised Date 3500.00.0059 Certification Regarding Former LANS or UC Employees (doc) 0 7/31/2015 3191.00.0993 Small Business Subcontracting Plan (doc) 1 7/9/2015 3251.00.0200 BAA Domestic Construction Materials

  14. Montana MPDES General Information Form (MDEQ Form 1) | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    (MDEQ Form 1) Jump to: navigation, search OpenEI Reference LibraryAdd to library Form: Montana MPDES General Information Form (MDEQ Form 1) Abstract Completion of form allows...

  15. STANDARD FORM NO. 64

    Office of Legacy Management (LM)

    qz-5 STANDARD FORM NO. 64 rl . . .' . , G Ojice Memoawl crl LA STATES GOVER pi,+ ip; ; (' , TO : F. M . Belmore, M remtor, Produution Division DATE: Deomnber FROM : R. F. Van Wy ...

  16. Image forming apparatus

    DOEpatents

    Satoh, Hisao (Hachioji, JP); Haneda, Satoshi (Hachioji, JP); Ikeda, Tadayoshi (Hachioji, JP); Morita, Shizuo (Hachioji, JP); Fukuchi, Masakazu (Hachioji, JP)

    1996-01-01

    In an image forming apparatus having a detachable process cartridge in which an image carrier on which an electrostatic latent image is formed, and a developing unit which develops the electrostatic latent image so that a toner image can be formed, both integrally formed into one unit. There is provided a developer container including a discharge section which can be inserted into a supply opening of the developing unit, and a container in which a predetermined amount of developer is contained, wherein the developer container is provided to the toner supply opening of the developing unit and the developer is supplied into the developing unit housing when a toner stirring screw of the developing unit is rotated.

  17. Forming the Future

    Energy.gov [DOE] (indexed site)

    ... At the tip of the stylus is a traditional quench-and-tempered 52100 steel ball bearing. Ford uses all types of hardened steel styluses of different diameter balls for forming ...

  18. User Financial Account Form

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

    2/20/13 User Financial Account Form Establish a user financial account at SLAC to procure gases, chemicals, supplies or services to support your experiment at SLAC's user facilities and to send samples, dewars, or other equipment between SLAC and your institution. To open or renew your SLAC user financial account, complete and submit this form along with a Purchase Order (PO) from your institution. The PO should be made to SLAC National Accelerator Laboratory for the amount of estimated

  19. Compute Reservation Request Form

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

    Compute Reservation Request Form Compute Reservation Request Form Users can request a scheduled reservation of machine resources if their jobs have special needs that cannot be accommodated through the regular batch system. A reservation brings some portion of the machine to a specific user or project for an agreed upon duration. Typically this is used for interactive debugging at scale or real time processing linked to some experiment or event. It is not intended to be used to guarantee fast

  20. Thermal effects and sudden decay approximation in the curvaton scenario

    SciTech Connect

    Kitajima, Naoya; Takesako, Tomohiro; Yokoyama, Shuichiro; Langlois, David; Takahashi, Tomo E-mail: langlois@apc.univ-paris7.fr E-mail: takesako@icrr.u-tokyo.ac.jp

    2014-10-01

    We study the impact of a temperature-dependent curvaton decay rate on the primordial curvature perturbation generated in the curvaton scenario. Using the familiar sudden decay approximation, we obtain an analytical expression for the curvature perturbation after the decay of the curvaton. We then investigate numerically the evolution of the background and of the perturbations during the decay. We first show that the instantaneous transfer coefficient, related to the curvaton energy fraction at the decay, can be extended into a more general parameter, which depends on the net transfer of the curvaton energy into radiation energy or, equivalently, on the total entropy ratio after the complete curvaton decay. We then compute the curvature perturbation and compare this result with the sudden decay approximation prediction.

  1. Data approximation using a blending type spline construction

    SciTech Connect

    Dalmo, Rune; Bratlie, Jostein

    2014-11-18

    Generalized expo-rational B-splines (GERBS) is a blending type spline construction where local functions at each knot are blended together by C{sup k}-smooth basis functions. One way of approximating discrete regular data using GERBS is by partitioning the data set into subsets and fit a local function to each subset. Partitioning and fitting strategies can be devised such that important or interesting data points are interpolated in order to preserve certain features. We present a method for fitting discrete data using a tensor product GERBS construction. The method is based on detection of feature points using differential geometry. Derivatives, which are necessary for feature point detection and used to construct local surface patches, are approximated from the discrete data using finite differences.

  2. Doorway states in the random-phase approximation

    SciTech Connect

    De Pace, A.; Molinari, A.; Weidenmüller, H.A.

    2014-12-15

    By coupling a doorway state to a sea of random background states, we develop the theory of doorway states in the framework of the random-phase approximation (RPA). Because of the symmetry of the RPA equations, that theory is radically different from the standard description of doorway states in the shell model. We derive the Pastur equation in the limit of large matrix dimension and show that the results agree with those of matrix diagonalization in large spaces. The complexity of the Pastur equation does not allow for an analytical approach that would approximately describe the doorway state. Our numerical results display unexpected features: The coupling of the doorway state with states of opposite energy leads to strong mutual attraction.

  3. Nearest neighbor rules PAC-approximate feedforward networks

    SciTech Connect

    Rao, N.S.V.

    1996-05-01

    The problem of function estimation using feedforward neural networks based on an indpendently and identically generated sample is addressed. The feedforward networks with a single hidden layer of 1/(1+{epsilon}{sup -{gamma}z}) units and bounded parameters are considered. It is shown that given a sufficiently large sample, a nearest neighbor rule approximates the best neural network such that the expected error is arbitrarily bounded with an arbitrary high probability. Result is extendible to other neural networks where the hidden units satisfy a suitable Lipschitz condition. A result of practical interest is that the problem of computing a neural network that approximates (in the above sense) the best possible one is computationally difficult, whereas a nearest neighbor rule is linear-time computable in terms of the sample size.

  4. Crossing contours in the interacting boson approximation (IBA) symmetry triangle

    SciTech Connect

    McCutchan, E. A.; Casten, R. F.

    2006-11-15

    Constant contours of basic observables are discussed in the context of the interacting boson approximation (IBA) symmetry triangle. Contours that exhibit orthogonal crossing within the triangle are presented as a method for determining a set of parameter values for a particular nucleus and trajectories for isotopic chains. A set of contours that highlights a class of nuclei that are outside the two-parameter IBA-1 Hamitonian space is also presented.

  5. The Monte Carlo Independent Column Approximation Model Intercomparison

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

    Project (McMIP) The Monte Carlo Independent Column Approximation Model Intercomparison Project (McMIP) Barker, Howard Meteorological Service of Canada Cole, Jason Meteorological Service of Canada Raisanen, Petri Finnish Meteorological Institute Pincus, Robert NOAA-CIRES Climate Diagnostics Center Morcrette, Jean-Jacques European Centre for Medium-Range Weather Forecasts Li, Jiangnan Canadian Center for Climate Modelling Stephens, Graeme Colorado State University Vaillancourt, Paul

  6. COMPLEXITY & APPROXIMABILITY OF QUANTIFIED & STOCHASTIC CONSTRAINT SATISFACTION PROBLEMS

    SciTech Connect

    H. B. HUNT; M. V. MARATHE; R. E. STEARNS

    2001-06-01

    Let D be an arbitrary (not necessarily finite) nonempty set, let C be a finite set of constant symbols denoting arbitrary elements of D, and let S and T be an arbitrary finite set of finite-arity relations on D. We denote the problem of determining the satisfiability of finite conjunctions of relations in S applied to variables (to variables and symbols in C) by SAT(S) (by SATc(S).) Here, we study simultaneously the complexity of decision, counting, maximization and approximate maximization problems, for unquantified, quantified and stochastically quantified formulas. We present simple yet general techniques to characterize simultaneously, the complexity or efficient approximability of a number of versions/variants of the problems SAT(S), Q-SAT(S), S-SAT(S),MAX-Q-SAT(S) etc., for many different such D,C,S,T. These versions/variants include decision, counting, maximization and approximate maximization problems, for unquantified, quantified and stochastically quantified formulas. Our unified approach is based on the following two basic concepts: (i) strongly-local replacements/reductions and (ii) relational/algebraic representability. Some of the results extend the earlier results in [Pa85,LMP99,CF+93,CF+94] Our techniques and results reported here also provide significant steps towards obtaining dichotomy theorems, for a number of the problems above, including the problems MAX-Q-SAT(S), and MAX-S-SAT(S). The discovery of such dichotomy theorems, for unquantified formulas, has received significant recent attention in the literature [CF+93, CF+94, Cr95, KSW97]. Keywords: NP-hardness; Approximation Algorithms; PSPACE-hardness; Quantified and Stochastic Constraint Satisfaction Problems.

  7. Methods for forming particles

    DOEpatents

    Fox, Robert V.; Zhang, Fengyan; Rodriguez, Rene G.; Pak, Joshua J.; Sun, Chivin

    2016-06-21

    Single source precursors or pre-copolymers of single source precursors are subjected to microwave radiation to form particles of a I-III-VI.sub.2 material. Such particles may be formed in a wurtzite phase and may be converted to a chalcopyrite phase by, for example, exposure to heat. The particles in the wurtzite phase may have a substantially hexagonal shape that enables stacking into ordered layers. The particles in the wurtzite phase may be mixed with particles in the chalcopyrite phase (i.e., chalcopyrite nanoparticles) that may fill voids within the ordered layers of the particles in the wurtzite phase thus produce films with good coverage. In some embodiments, the methods are used to form layers of semiconductor materials comprising a I-III-VI.sub.2 material. Devices such as, for example, thin-film solar cells may be fabricated using such methods.

  8. ARM - VAP Suggestion Form

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

    Suggestion Form Showcase Data ARM Best Estimate Data Products (ARMBE) This is a collection of data products that represents "best estimates" derived from several instruments and/or VAPs. We are interested in your feedback; please contact us. VAP Update Information on new, existing, and future value-added products for July l-September 30, 2015 is now available. Have a VAP idea? Use this form to let us know. Datastream Status Further details on the status of VAPs being processed or

  9. Realtime Queue Request Form

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

    Realtime Queue Request Form Realtime Queue Request Form NERSC now supports realtime queues on Cori and Edison. Users can request a small number of on-demand nodes if their jobs have special needs that cannot be accommodated through the regular batch system. The real-time queue enables immediate access to a set of nodes, for jobs that are under the realtime wallclock limit (currently 6 hours). Typically this is used for real time processing linked to some experiment or event. It is not intended

  10. ORPS User Registration Form

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

    ENERGY OPERATIONAL EVENT INFORMATION SYSTEMS REGISTRATION FORM User Registration For:  ORPS Submit Completed Form To: EMAIL: ORPSsupport@hq.doe.gov PHONE: 800-473-4375 FAX: 301-903-9823 U.S. Department of Energy AU User Support (Type or Print) 1. Name Birth date / (Last) (First) (Middle Initial) (Month) (Day) 2.JobTitle 3. Company Name 4. Address Mail Stop City State Zip 5. Work Phone Work Fax 6. Internet E-Mail Address (e.g. orpssupport@hq.doe.gov 7. USA Citizenship (check one)  Yes 

  11. The extraordinary wave excitation in microwave gas breakdown in the adiabatic approximation

    SciTech Connect

    Ghorbanalilu, M.; Shokri, B.

    2008-09-15

    Making use of the electron distribution function formed in the interaction of high-frequency microwave (MW) pulsed fields with a rarefied neutral gas [M. Ghorbanalilu, Phys. Plasmas. 13, 102110 (2006)], the dielectric permittivity tensor of the produced plasma is derived under the condition that the ions are cold and nonmagnetized. According to the adiabatic approximation and using the dielectric permittivity tensor elements the dispersion relations for ordinary and extraordinary excited waves are found. The numerical solution of the dispersion relation shows that the extraordinary modes are unstable in such a nonequilibrium system. These modes are generated in a wide range of wavelengths by tuning the MW field amplitude and magnetic field strength.

  12. Simplified approach to interacting boson approximation-2 calculations using Hamiltonian invariants

    SciTech Connect

    Chou, W.-T.; Zamfir, N. V.; Clark University, Worcester, Massachusetts 01610; National Institute of Physics and Nuclear Engineering, Bucharest, ; Casten, R. F.

    2000-07-01

    A systematic study of predictions of the interacting boson approximation (IBA)-2 model leads to the identification of two parameter invariants such that calculations with the same values of the invariants yield results that are identical in certain cases and show close similarities under a wider set of conditions. The invariants validate a much-used form of the IBA-2 Hamiltonian and provide a systematic method to simplify IBA-2 calculations by choosing a truncated Hamiltonian with the same invariant values as more general Hamiltonians. (c) 2000 The American Physical Society.

  13. Forms | Princeton Plasma Physics Lab

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

    Forms Forms Computer Keyboard Keyboard DOE Forms DOE's forms are developed within the Department and approved by the DOE Forms Manager. The forms provided (below) are designed to serve the needs of two (or more) DOE Headquarters or field organizations. (You must have Adobe Acrobat(R) Reader to view and print the below files. Fillable forms are identified by the "fillable" icon, and require the full version of Adobe Acrobat software.) Forms by Subject Forms by Number Management &

  14. Coach Compliance Form

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

    Coach Compliance Form My team is participating in theNational Renewable Energy Laboratory's Lithium-Ion Battery Car Competition. I have reviewed the following documents with the participating students: o Safety Hazards of Batteries o Material Safety Data Sheet - Lithium Polymer Battery o Electric Battery Car Competition Rules ______________________________ ______________ Coach Signature Date Name of School: ____________________________________________ Name of Coach (Please Print):

  15. Inelastic Scattering Form Factors

    Energy Science and Technology Software Center

    1992-01-01

    ATHENA-IV computes form factors for inelastic scattering calculations, using single-particle wave functions that are eigenstates of motion in either a Woods-Saxon potential well or a harmonic oscillator well. Two-body forces of Gauss, Coulomb, Yukawa, and a sum of cut-off Yukawa radial dependences are available.

  16. Method for forming targets

    DOEpatents

    Woerner, Robert L.

    1979-01-01

    Method for cryoinduced uniform deposition of cryogenic materials, such as deuterium-tritium (DT) mixtures, on the inner surface of hollow spherical members, such as inertially imploded targets. By vaporizing and quickly refreezing cryogenic materials contained within a hollow spherical member, a uniform layer of the materials is formed on the inner surface of the spherical member. Heating of the cryogenic material, located within a non-isothermal compact freezing cell, is accomplished by an electrical heat pulse, whereafter the material is quickly frozen forming a uniform layer on the inner surface of the spherical member. The method is not restricted to producing a frozen layer on only the inner surface of the innermost hollow member, but where multiple concentric hollow spheres are involved, such as in multiple shell targets for lasers, electron beams, etc., layers of cryogenic material may also be formed on the inner surface of intermediate or outer spherical members, thus providing the capability of forming targets having multiple concentric layers or shells of frozen DT.

  17. Apparatus for forming targets

    DOEpatents

    Woerner, Robert L.

    1980-01-01

    Apparatus and method for cryoinduced uniform deposition of cryogenic materials, such as deuterium-tritium (DT) mixtures, on the inner surface of hollow spherical members, such as inertially imploded targets. By vaporizing and quickly refreezing cryogenic materials contained within a hollow spherical member, a uniform layer of the materials is formed on the inner surface of the spherical member. Heating of the cryogenic material, located within a non-isothermal compact freezing cell, is accomplished by an electrical heat pulse, whereafter the material is quickly frozen forming a uniform layer on the inner surface of the spherical member. The method is not restricted to producing a frozen layer on only the inner surface of the innermost hollow member, but where multiple concentric hollow spheres are involved, such as in multiple shell targets for lasers, electron beams, etc., layers of cryogenic material may also be formed on the inner surface of intermediate or outer spherical members, thus providing the capability of forming targets having multiple concentric layers or shells of frozen DT.

  18. Formed photovoltaic module busbars

    SciTech Connect

    Rose, Douglas; Daroczi, Shan; Phu, Thomas

    2015-11-10

    A cell connection piece for a photovoltaic module is disclosed herein. The cell connection piece includes an interconnect bus, a plurality of bus tabs unitarily formed with the interconnect bus, and a terminal bus coupled with the interconnect bus. The plurality of bus tabs extend from the interconnect bus. The terminal bus includes a non-linear portion.

  19. COMPLEXITY&APPROXIMABILITY OF QUANTIFIED&STOCHASTIC CONSTRAINT SATISFACTION PROBLEMS

    SciTech Connect

    Hunt, H. B.; Marathe, M. V.; Stearns, R. E.

    2001-01-01

    Let D be an arbitrary (not necessarily finite) nonempty set, let C be a finite set of constant symbols denoting arbitrary elements of D, and let S and T be an arbitrary finite set of finite-arity relations on D. We denote the problem of determining the satisfiability of finite conjunctions of relations in S applied to variables (to variables and symbols in C) by SAT(S) (by SATc(S).) Here, we study simultaneously the complexity of decision, counting, maximization and approximate maximization problems, for unquantified, quantified and stochastically quantified formulas. We present simple yet general techniques to characterize simultaneously, the complexity or efficient approximability of a number of versions/variants of the problems SAT(S), Q-SAT(S), S-SAT(S),MAX-Q-SAT(S) etc., for many different such D,C ,S, T. These versions/variants include decision, counting, maximization and approximate maximization problems, for unquantified, quantified and stochastically quantified formulas. Our unified approach is based on the following two basic concepts: (i) strongly-local replacements/reductions and (ii) relational/algebraic represent ability. Some of the results extend the earlier results in [Pa85,LMP99,CF+93,CF+94O]u r techniques and results reported here also provide significant steps towards obtaining dichotomy theorems, for a number of the problems above, including the problems MAX-&-SAT( S), and MAX-S-SAT(S). The discovery of such dichotomy theorems, for unquantified formulas, has received significant recent attention in the literature [CF+93,CF+94,Cr95,KSW97

  20. Exploring the Random Phase Approximately for materials chemistry and physics

    SciTech Connect

    Ruzsinsky, Adrienn

    2015-03-23

    This proposal focuses on improved accuracy for the delicate energy differences of interest in materials chemistry with the fully nonlocal random phase approximation (RPA) in a density functional context. Could RPA or RPA-like approaches become standard methods of first-principles electronic-structure calculation for atoms, molecules, solids, surfaces, and nano-structures? Direct RPA includes the full exact exchange energy and a nonlocal correlation energy from the occupied and unoccupied Kohn-Sham orbitals and orbital energies, with an approximate but universal description of long-range van der Waals attraction. RPA also improves upon simple pair-wise interaction potentials or vdW density functional theory. This improvement is essential to capture accurate energy differences in metals and different phases of semiconductors. The applications in this proposal are challenges for the simpler approximations of Kohn-Sham density functional theory, which are part of the current “standard model” for quantum chemistry and condensed matter physics. Within this project we already applied RPA on different structural phase transitions on semiconductors, metals and molecules. Although RPA predicts accurate structural parameters, RPA has proven not equally accurate in all kinds of structural phase transitions. Therefore a correction to RPA can be necessary in many cases. We are currently implementing and testing a nonempirical, spatially nonlocal, frequency-dependent model for the exchange-correlation kernel in the adiabatic-connection fluctuation-dissipation context. This kernel predicts a nearly-exact correlation energy for the electron gas of uniform density. If RPA or RPA-like approaches prove to be reliably accurate, then expected increases in computer power may make them standard in the electronic-structure calculations of the future.

  1. Explicit solutions of the radiative transport equation in the P{sub 3} approximation

    SciTech Connect

    Liemert, André Kienle, Alwin

    2014-11-01

    Purpose: Explicit solutions of the monoenergetic radiative transport equation in the P{sub 3} approximation have been derived which can be evaluated with nearly the same computational effort as needed for solving the standard diffusion equation (DE). In detail, the authors considered the important case of a semi-infinite medium which is illuminated by a collimated beam of light. Methods: A combination of the classic spherical harmonics method and the recently developed method of rotated reference frames is used for solving the P{sub 3} equations in closed form. Results: The derived solutions are illustrated and compared to exact solutions of the radiative transport equation obtained via the Monte Carlo (MC) method as well as with other approximated analytical solutions. It is shown that for the considered cases which are relevant for biomedical optics applications, the P{sub 3} approximation is close to the exact solution of the radiative transport equation. Conclusions: The authors derived exact analytical solutions of the P{sub 3} equations under consideration of boundary conditions for defining a semi-infinite medium. The good agreement to Monte Carlo simulations in the investigated domains, for example, in the steady-state and time domains, as well as the short evaluation time needed suggests that the derived equations can replace the often applied solutions of the diffusion equation for the homogeneous semi-infinite medium.

  2. Fundamental gaps with approximate density functionals: The derivative discontinuity revealed from ensemble considerations

    SciTech Connect

    Kraisler, Eli; Kronik, Leeor

    2014-05-14

    The fundamental gap is a central quantity in the electronic structure of matter. Unfortunately, the fundamental gap is not generally equal to the Kohn-Sham gap of density functional theory (DFT), even in principle. The two gaps differ precisely by the derivative discontinuity, namely, an abrupt change in slope of the exchange-correlation energy as a function of electron number, expected across an integer-electron point. Popular approximate functionals are thought to be devoid of a derivative discontinuity, strongly compromising their performance for prediction of spectroscopic properties. Here we show that, in fact, all exchange-correlation functionals possess a derivative discontinuity, which arises naturally from the application of ensemble considerations within DFT, without any empiricism. This derivative discontinuity can be expressed in closed form using only quantities obtained in the course of a standard DFT calculation of the neutral system. For small, finite systems, addition of this derivative discontinuity indeed results in a greatly improved prediction for the fundamental gap, even when based on the most simple approximate exchange-correlation density functional the local density approximation (LDA). For solids, the same scheme is exact in principle, but when applied to LDA it results in a vanishing derivative discontinuity correction. This failure is shown to be directly related to the failure of LDA in predicting fundamental gaps from total energy differences in extended systems.

  3. Comparisons of characteristic timescales and approximate models for Brownian magnetic nanoparticle rotations

    SciTech Connect

    Reeves, Daniel B. Weaver, John B.

    2015-06-21

    Magnetic nanoparticles are promising tools for a host of therapeutic and diagnostic medical applications. The dynamics of rotating magnetic nanoparticles in applied magnetic fields depend strongly on the type and strength of the field applied. There are two possible rotation mechanisms and the decision for the dominant mechanism is often made by comparing the equilibrium relaxation times. This is a problem when particles are driven with high-amplitude fields because they are not necessarily at equilibrium at all. Instead, it is more appropriate to consider the “characteristic timescales” that arise in various applied fields. Approximate forms for the characteristic time of Brownian particle rotations do exist and we show agreement between several analytical and phenomenological-fit models to simulated data from a stochastic Langevin equation approach. We also compare several approximate models with solutions of the Fokker-Planck equation to determine their range of validity for general fields and relaxation times. The effective field model is an excellent approximation, while the linear response solution is only useful for very low fields and frequencies for realistic Brownian particle rotations.

  4. A multilevel approximate projections for incompressible flow calculations

    SciTech Connect

    Howell, L.H.

    1994-12-31

    An adaptive-mesh projection algorithm for unsteady, variable-density, incompressible flow at high Reynolds number has been developed in the Applied Mathematics Group at LLNL. A grid-based refinement scheme combines the theoretical efficiencies of adaptive methods with the computational advantages of uniform grids, while a second-order Godunov method provides a robust and accurate treatment of advection in the presence of discontinuities without excessive dissipation. This paper focuses on the work of the present author concerning the approximate projection itself, which involves the numerical inversion of the operator {del} {center_dot} (1/{rho}){del} on various subsets of the adaptive grid hierarchy.

  5. Multigroup Free-atom Doppler-broadening Approximation. Experiment

    SciTech Connect

    Gray, Mark Girard

    2015-11-06

    The multigroup energy Doppler-broadening approximation agrees with continuous energy Dopplerbroadening generally to within ten percent for the total cross sections of 1H, 56Fe, and 235U at 250 lanl. Although this is probably not good enough for broadening from room temperature through the entire temperature range in production use, it is better than any interpolation scheme between temperatures proposed to date, and may be good enough for extrapolation from high temperatures. The method deserves further study since additional improvements are possible.

  6. Compton scattering from positronium and validity of the impulse approximation

    SciTech Connect

    Kaliman, Z.; Pisk, K.; Pratt, R. H.

    2011-05-15

    The cross sections for Compton scattering from positronium are calculated in the range from 1 to 100 keV incident photon energy. The calculations are based on the A{sup 2} term of the photon-electron or photon-positron interaction. Unlike in hydrogen, the scattering occurs from two centers and the interference effect plays an important role for energies below 8 keV. Because of the interference, the criterion for validity of the impulse approximation for positronium is more restrictive compared to that for hydrogen.

  7. Structural physical approximations of unphysical maps and generalized quantum measurements

    SciTech Connect

    Fiurasek, Jaromir

    2002-11-01

    We investigate properties of the structural physical approximation (SPA) of the partial transposition map recently introduced by Horodecki and Ekert [Phys. Rev. Lett. 89, 127902 (2002)]. We focus on the case of two-qubit states and show that in this case the map has the structure of a generalized quantum measurement followed by the preparation of a suitable output state. We also introduce SPA for a map that transforms two copies of density matrix of a single qubit onto a square of that matrix. We prove that also this map is essentially a generalized quantum measurement.

  8. PAC learning algorithms for functions approximated by feedforward networks

    SciTech Connect

    Rao, N.S.V.; Protopopescu, V.

    1996-06-01

    The authors present a class of efficient algorithms for PAC learning continuous functions and regressions that are approximated by feedforward networks. The algorithms are applicable to networks with unknown weights located only in the output layer and are obtained by utilizing the potential function methods of Aizerman et al. Conditions relating the sample sizes to the error bounds are derived using martingale-type inequalities. For concreteness, the discussion is presented in terms of neural networks, but the results are applicable to general feedforward networks, in particular to wavelet networks. The algorithms can be directly adapted to concept learning problems.

  9. Formed HIP Can Processing

    SciTech Connect

    Clarke, Kester Diederik

    2015-07-27

    The intent of this report is to document a procedure used at LANL for HIP bonding aluminum cladding to U-10Mo fuel foils using a formed HIP can for the Domestic Reactor Conversion program in the NNSA Office of Material, Management and Minimization, and provide some details that may not have been published elsewhere. The HIP process is based on the procedures that have been used to develop the formed HIP can process, including the baseline process developed at Idaho National Laboratory (INL). The HIP bonding cladding process development is summarized in the listed references. Further iterations with Babcock & Wilcox (B&W) to refine the process to meet production and facility requirements is expected.

  10. FOIA Request Form

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

    Southwestern Power Administration To make an FOIA request, please provide the information below. Failure to enter accurate and complete information may render your FOIA request impossible to fulfill. * Requests submitted under the Privacy Act must be signed and, therefore, cannot be submitted on this form. Contact Information Name Organization Address Fax Number Phone Number Email Address Reasonably Describe Records Describe the specific record (s) you seek with sufficient detail that a

  11. NEPA Determination Form

    National Nuclear Security Administration (NNSA)

    LA NEPA COMPLIANCE DETERMINATION FORM PRID - 09P-0059 V2 Page 1 of 8 Project/Activity Title: TA-3 Substation Replacement Project PRID: 09P-0059 V2 Date: February 16, 2016 Purpose: The proposed demolition and replacement of the Los Alamos National Laboratory's (LANL) Technical Area (TA)-3 electrical power substation is needed to provide reliable and efficient electrical distribution systems with sufficient electrical capacity to support the national security missions. The electrical distribution

  12. Nucleon Electromagnetic Form Factors

    SciTech Connect

    Kees de Jager

    2004-08-01

    Although nucleons account for nearly all the visible mass in the universe, they have a complicated structure that is still incompletely understood. The first indication that nucleons have an internal structure, was the measurement of the proton magnetic moment by Frisch and Stern (1933) which revealed a large deviation from the value expected for a point-like Dirac particle. The investigation of the spatial structure of the nucleon, resulting in the first quantitative measurement of the proton charge radius, was initiated by the HEPL (Stanford) experiments in the 1950s, for which Hofstadter was awarded the 1961 Nobel prize. The first indication of a non-zero neutron charge distribution was obtained by scattering thermal neutrons off atomic electrons. The recent revival of its experimental study through the operational implementation of novel instrumentation has instigated a strong theoretical interest. Nucleon electro-magnetic form factors (EMFFs) are optimally studied through the exchange of a virtual photon, in elastic electron-nucleon scattering. The momentum transferred to the nucleon by the virtual photon can be selected to probe different scales of the nucleon, from integral properties such as the charge radius to scaling properties of its internal constituents. Polarization instrumentation, polarized beams and targets, and the measurement of the polarization of the recoiling nucleon have been essential in the accurate separation of the charge and magnetic form factors and in studies of the elusive neutron charge form factor.

  13. A multiscale two-point flux-approximation method

    SciTech Connect

    Myner, Olav Lie, Knut-Andreas

    2014-10-15

    A large number of multiscale finite-volume methods have been developed over the past decade to compute conservative approximations to multiphase flow problems in heterogeneous porous media. In particular, several iterative and algebraic multiscale frameworks that seek to reduce the fine-scale residual towards machine precision have been presented. Common for all such methods is that they rely on a compatible primaldual coarse partition, which makes it challenging to extend them to stratigraphic and unstructured grids. Herein, we propose a general idea for how one can formulate multiscale finite-volume methods using only a primal coarse partition. To this end, we use two key ingredients that are computed numerically: (i) elementary functions that correspond to flow solutions used in transmissibility upscaling, and (ii) partition-of-unity functions used to combine elementary functions into basis functions. We exemplify the idea by deriving a multiscale two-point flux-approximation (MsTPFA) method, which is robust with regards to strong heterogeneities in the permeability field and can easily handle general grids with unstructured fine- and coarse-scale connections. The method can easily be adapted to arbitrary levels of coarsening, and can be used both as a standalone solver and as a preconditioner. Several numerical experiments are presented to demonstrate that the MsTPFA method can be used to solve elliptic pressure problems on a wide variety of geological models in a robust and efficient manner.

  14. downloadForm.asp

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

    DE-DT0010963 PAGE NO (a) (b) (c) (d) (e) (f) (g) DE-EM0003586/0455/15/501866/01 Period of Performance: 03/15/2016 to 03/14/2017 00001 Task 1 - LANL Land Conveyance and Transfers 121,845.38 2016 Line item value is:$121,845.38 Incrementally Funded Amount: $121,845.38 Prescribed by GSA FAR (48 CFR) 53.213(f) OPTIONAL FORM 348 (Rev. 4/2006) AUTHORIZED FOR LOCAL REPODUCTION PREVIOUS EDITION NOT USABLE TOTAL CARRIED FORWARD TO 1ST PAGE (ITEM 17(H)) $121,845.38 Contract DE-EM0003586 Task Order

  15. GlassForm

    Energy Science and Technology Software Center

    2011-09-16

    GlassForm is a software tool for generating preliminary waste glass formulas for a given waste stream. The software is useful because it reduces the number of verification melts required to develop a suitable additive composition. The software includes property models that calculate glass properties of interest from the chemical composition of the waste glass. The software includes property models for glass viscosity, electrical conductivity, glass transition temperature, and leach resistance as measured by the 7-daymore » product consistency test (PCT).« less

  16. Approximate Weighted Matching On Emerging Manycore and Multithreaded Architectures

    SciTech Connect

    Halappanavar, Mahantesh; Feo, John T.; Villa, Oreste; Tumeo, Antonino; Pothen, Alex

    2012-11-30

    Graph matching is a prototypical combinatorial problem with many applications in computer science and scientific computing, but algorithms for computing optimal matchings are challenging to parallelize. Approximate matching algorithms provide an alternate route for parallelization, and in many contexts compute near-optimal matchings for large-scale graphs. We present sharedmemory parallel implementations for computing half-approximate weighted matching on state-of-the-art multicore (Intel Nehalem and AMD Magny-Cours), manycore (Nvidia Tesla and Nvidia Fermi) and massively multithreaded (Cray XMT) platforms. We provide two implementations: the first implementation uses shared work queues, and is suited to all these platforms; the second implementation is based on dataflow principles, and exploits the architectural features of the Cray XMT. Using a carefully chosen dataset that exhibits characteristics from a wide range of real-world applications, we show scalable performance across different platforms. In particular, for one instance of the input, an R-MAT graph (RMAT-G), we show speedups of: about 32 on 48 cores of an AMD Magny-Cours; 7 on 8 cores of Intel Nehalem; 3 on Nvidia Tesla and 10 on Nvidia Fermi relative to one core of Intel Nehalem; and 60 on 128 processors of Cray XMT. We demonstrate good weak and strong scaling for graphs with up to a billion edges using up to 12, 800 threads. Given the breadth of this work, we focus on simplicity and portability of software rather than excessive fine-tuning for each platform. To the best of our knowledge, this is the first such large-scale study of the half-approximate weighted matching problem on shared-memory platforms. Driven by the critical enabling role of combinatorial algorithms such as matching in scientific computing and the emergence of informatics applications, there is a growing demand to support irregular computations on current and future computing platforms. In this context, we evaluate the capability

  17. Low-level radioactive waste form qualification testing

    SciTech Connect

    Sohal, M.S.; Akers, D.W.

    1998-06-01

    This report summarizes activities that have already been completed as well as yet to be performed by the Idaho National Engineering and Environmental Laboratory (INEEL) to develop a plan to quantify the behavior of radioactive low-level waste forms. It briefly describes the status of various tasks, including DOE approval of the proposed work, several regulatory and environmental related documents, tests to qualify the waste form, preliminary schedule, and approximate cost. It is anticipated that INEEL and Brookhaven National Laboratory will perform the majority of the tests. For some tests, services of other testing organizations may be used. It should take approximately nine months to provide the final report on the results of tests on a waste form prepared for qualification. It is anticipated that the overall cost of the waste quantifying service is approximately $150,000. The following tests are planned: compression, thermal cycling, irradiation, biodegradation, leaching, immersion, free-standing liquid tests, and full-scale testing.

  18. Analytic derivation of an approximate SU(3) symmetry inside the symmetry triangle of the interacting boson approximation model

    SciTech Connect

    Bonatsos, Dennis; Karampagia, S.; Casten, R. F.

    2011-05-15

    Using a contraction of the SU(3) algebra to the algebra of the rigid rotator in the large-boson-number limit of the interacting boson approximation (IBA) model, a line is found inside the symmetry triangle of the IBA, along which the SU(3) symmetry is preserved. The line extends from the SU(3) vertex to near the critical line of the first-order shape/phase transition separating the spherical and prolate deformed phases, and it lies within the Alhassid-Whelan arc of regularity, the unique valley of regularity connecting the SU(3) and U(5) vertices in the midst of chaotic regions. In addition to providing an explanation for the existence of the arc of regularity, the present line represents an example of an analytically determined approximate symmetry in the interior of the symmetry triangle of the IBA. The method is applicable to algebraic models possessing subalgebras amenable to contraction. This condition is equivalent to algebras in which the equilibrium ground state and its rotational band become energetically isolated from intrinsic excitations, as typified by deformed solutions to the IBA for large numbers of valence nucleons.

  19. Surface wake in the random-phase approximation

    SciTech Connect

    Garcia de Abajo, F.J. ); Echenique, P.M. )

    1993-11-01

    The scalar-electric-potential distribution set up by an ion traveling in the vicinity of a plane solid-vacuum interface, that is, the surface-wake potential, is investigated with the specular-reflection model to describe the response of the surface and with the random-phase approximation for the dielectric function of the bulk material. This permits us to address the study of the low-velocity surface wake: the static potential is found to have a dip at the position of the ion; that dip is shifted towards the direction opposite to the velocity vector for velocities smaller than the threshold of creation of plasmons ([approx]1.3[ital v][sub [ital F

  20. Above-threshold ionization beyond the dipole approximation

    SciTech Connect

    Klaiber, Michael; Hatsagortsyan, Karen Z.; Keitel, Christoph H.

    2005-03-01

    A generalization of the analytical theory of above-threshold ionization in the single active electron approximation is developed while taking into account leading non-dipole and relativistic corrections in the starting Hamiltonian. Special interest is placed on the high energy part of the photoelectron spectrum which consists of a plateau and a characteristic cutoff. It is shown that the correction due to the magnetic component of the laser field gives rise to a decrease of the plateau height, an increase of the maximal cutoff energy, and a drift of the emitted electrons in propagation direction of the laser field. Furthermore, the influence of the relativistic mass shift may become non-neglible by reducing the cutoff energy significantly. Spin effects or the Zitterbewegung play a comparably minor role in the investigated parameter regime of suboptical frequencies and high but not ultra-high laser intensities.

  1. Bipolar pulse forming line

    DOEpatents

    Rhodes, Mark A.

    2008-10-21

    A bipolar pulse forming transmission line module for linear induction accelerators having first, second, third, fourth, and fifth planar conductors which form an interleaved stack with dielectric layers between the conductors. Each conductor has a first end, and a second end adjacent an acceleration axis. The first and second planar conductors are connected to each other at the second ends, the fourth and fifth planar conductors are connected to each other at the second ends, and the first and fifth planar conductors are connected to each other at the first ends via a shorting plate adjacent the first ends. The third planar conductor is electrically connectable to a high voltage source, and an internal switch functions to short a high voltage from the first end of the third planar conductor to the first end of the fourth planar conductor to produce a bipolar pulse at the acceleration axis with a zero net time integral. Improved access to the switch is enabled by an aperture through the shorting plate and the proximity of the aperture to the switch.

  2. Nucleon Electromagnetic Form Factors

    SciTech Connect

    Marc Vanderhaeghen; Charles Perdrisat; Vina Punjabi

    2007-10-01

    There has been much activity in the measurement of the elastic electromagnetic proton and neutron form factors in the last decade, and the quality of the data has greatly improved by performing double polarization experiments, in comparison with previous unpolarized data. Here we review the experimental data base in view of the new results for the proton, and neutron, obtained at JLab, MAMI, and MIT-Bates. The rapid evolution of phenomenological models triggered by these high-precision experiments will be discussed, including the recent progress in the determination of the valence quark generalized parton distributions of the nucleon, as well as the steady rate of improvements made in the lattice QCD calculations.

  3. Fermilab | Fermilab at Work | Web Form | Feedback Form

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

    Feedback Form Use the form below to submit a suggestion to senior management. Required fields are marked with an asterisk (*). Suggestion: Name: Email Address: Submit Last modified...

  4. Form 1 | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Form 1 Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- Permit ApplicationPermit Application: Form 1Legal Abstract Form 1: General Information,...

  5. HDOT Forms | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    HDOT Forms Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- OtherOther: HDOT FormsLegal Abstract The State of Hawaii Forms Central webpage...

  6. Zeroth-order regular approximation approach to molecular parity violation

    SciTech Connect

    Berger, Robert; Langermann, Norbert; Wuellen, Christoph van

    2005-04-01

    We present an ab initio (quasirelativistic) two-component approach to the computation of molecular parity-violating effects which is based on the zeroth-order regular approximation (ZORA). As a first application, we compute the parity-violating energy differences between various P and M conformations of C{sub 2}-symmetric molecules belonging to the series H{sub 2}X{sub 2} with X=O, S, Se, Te, Po. The results are compared to previously reported (relativistic) four-component Dirac-Hartree-Fock-Coulomb (DHFC) data. Relative deviations between ZORA and DHFC values are well below 2% for diselane and the heavier homologs whereas somewhat larger relative deviations are observed for the lighter homologs. The larger deviations for lighter systems are attributed to the (nonlocal) exchange terms coupling large and small components, which have been neglected in the present ZORA implementation. For heavier systems these play a minor role, which explains the good performance of the ZORA approach. An excellent performance, even for lighter systems, is expected for a related density-functional-theory-based ZORA because then the exchange terms coupling large and small components are absent.

  7. Radiation Safety Work Control Form

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

    Radiation Safety Work Control Form (see instructions on pg-3) Rev. May 2014 Area: Form : ... Safety Office (namesignaturedate) Radiation Physics (namesignaturedate) Section 4: ...

  8. NDEP Forms | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    to library Legal Document- OtherOther: NDEP FormsLegal Abstract The Nevada Division of Environmental Protection (NDEP) provides links various forms, including all necessary...

  9. Electronic Registration Form - Hanford Site

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

    Site Wide Programs Health & Safety Exposition Electronic Registration Form About Us Booth Awards Special Events Exhibitor Information What is EXPO Electronic Registration Form...

  10. Form 200 | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    ApplicationPermit Application: Form 200Legal Abstract Form 200: ApplicationReport for Waste Discharge, current through August 14, 2014. Published NA Year Signed or Took Effect...

  11. Waste form product characteristics

    SciTech Connect

    Taylor, L.L.; Shikashio, R.

    1995-01-01

    The Department of Energy has operated nuclear facilities at the Idaho National Engineering Laboratory (INEL) to support national interests for several decades. Since 1953, it has supported the development of technologies for the storage and reprocessing of spent nuclear fuels (SNF) and the resultant wastes. However, the 1992 decision to discontinue reprocessing of SNF has left nearly 768 MT of SNF in storage at the INEL with unspecified plans for future dispositioning. Past reprocessing of these fuels for uranium and other resource recovery has resulted in the production of 3800 M{sup 3} calcine and a total inventory of 7600 M{sup 3} of radioactive liquids (1900 M{sup 3} destined for immediate calcination and the remaining sodium-bearing waste requiring further treatment before calcination). These issues, along with increased environmental compliance within DOE and its contractors, mandate operation of current and future facilities in an environmentally responsible manner. This will require satisfactory resolution of spent fuel and waste disposal issues resulting from the past activities. A national policy which identifies requirements for the disposal of SNF and high level wastes (HLW) has been established by the Nuclear Waste Policy Act (NWPA) Sec.8,(b) para(3)) [1982]. The materials have to be conditioned or treated, then packaged for disposal while meeting US Environmental Protection Agency (EPA) and Nuclear Regulatory Commission (NRC) regulations. The spent fuel and HLW located at the INEL will have to be put into a form and package that meets these regulatory criteria. The emphasis of Idaho Chemical Processing Plant (ICPP) future operations has shifted toward investigating, testing, and selecting technologies to prepare current and future spent fuels and waste for final disposal. This preparation for disposal may include mechanical, physical and/or chemical processes, and may differ for each of the various fuels and wastes.

  12. Gaussian approximation and single-spin measurement in magnetic resonance force microscopy with spin noise

    SciTech Connect

    Raghunathan, Shesha; Brun, Todd A.; Goan, Hsi-Sheng

    2010-11-15

    A promising technique for measuring single electron spins is magnetic resonance force microscopy (MRFM), in which a microcantilever with a permanent magnetic tip is resonantly driven by a single oscillating spin. The most effective experimental technique is the oscillating cantilever-driven adiabatic reversals (OSCAR) protocol, in which the signal takes the form of a frequency shift. If the quality factor of the cantilever is high enough, this signal will be amplified over time to the point where it can be detected by optical or other techniques. An important requirement, however, is that this measurement process occurs on a time scale that is short compared to any noise which disturbs the orientation of the measured spin. We describe a model of spin noise for the MRFM system and show how this noise is transformed to become time dependent in going to the usual rotating frame. We simplify the description of the cantilever-spin system by approximating the cantilever wave function as a Gaussian wave packet and show that the resulting approximation closely matches the full quantum behavior. We then examine the problem of detecting the signal for a cantilever with thermal noise and spin with spin noise, deriving a condition for this to be a useful measurement.

  13. Markov Jump Processes Approximating a Non-Symmetric Generalized Diffusion

    SciTech Connect

    Limic, Nedzad

    2011-08-15

    Consider a non-symmetric generalized diffusion X( Dot-Operator ) in Double-Struck-Capital-R {sup d} determined by the differential operator A(x) = -{Sigma}{sub ij} {partial_derivative}{sub i}a{sub ij}(x){partial_derivative}{sub j} + {Sigma}{sub i} b{sub i}(x){partial_derivative}{sub i}. In this paper the diffusion process is approximated by Markov jump processes X{sub n}( Dot-Operator ), in homogeneous and isotropic grids G{sub n} Subset-Of Double-Struck-Capital-R {sup d}, which converge in distribution in the Skorokhod space D([0,{infinity}), Double-Struck-Capital-R {sup d}) to the diffusion X( Dot-Operator ). The generators of X{sub n}( Dot-Operator ) are constructed explicitly. Due to the homogeneity and isotropy of grids, the proposed method for d{>=}3 can be applied to processes for which the diffusion tensor {l_brace}a{sub ij}(x){r_brace}{sub 11}{sup dd} fulfills an additional condition. The proposed construction offers a simple method for simulation of sample paths of non-symmetric generalized diffusion. Simulations are carried out in terms of jump processes X{sub n}( Dot-Operator ). For piece-wise constant functions a{sub ij} on Double-Struck-Capital-R {sup d} and piece-wise continuous functions a{sub ij} on Double-Struck-Capital-R {sup 2} the construction and principal algorithm are described enabling an easy implementation into a computer code.

  14. Modeling of free electronic state density in hydrogenic plasmas based on nearest neighbor approximation

    SciTech Connect

    Nishikawa, Takeshi

    2014-07-15

    Most conventional atomic models in a plasma do not treat the effect of the plasma on the free-electron state density. Using a nearest neighbor approximation, the state densities in hydrogenic plasmas for both bound and free electrons were evaluated and the effect of the plasma on the atomic model (especially for the state density of the free electron) was studied. The model evaluates the electron-state densities using the potential distribution formed by the superposition of the Coulomb potentials of two ions. The potential from one ion perturbs the electronic state density on the other. Using this new model, one can evaluate the free-state density without making any ad-hoc assumptions. The resulting contours of the average ionization degree, given as a function of the plasma temperature and density, are shifted slightly to lower temperatures because of the effect of the increasing free-state density.

  15. STEP Utility Data Release Form

    Energy.gov [DOE]

    STEP Utility Data Release Form, from the Tool Kit Framework: Small Town University Energy Program (STEP).

  16. Fire Protection Account Request Form

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

    Fire Protection System Account Request Form To obtain a user id and password to access the Fire Protection system, please complete the form, save the file and email it to...

  17. SSRL Computer Account Request Form

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

    SSRL/LCLS Computer Account Request Form August 2009 Fill in this form and sign the security statement mentioned at the bottom of this page to obtain an account. Your Name: __________________________________________________________ Institution: ___________________________________________________________ Mailing Address: ______________________________________________________ Email Address: _______________________________________________________ Telephone:

  18. Fermilab | Tevatron | Guest Book | Form

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

    Guest Book - Form Share your Tevatron-related memories, comments and stories by using our submission form below: Submitted comments are restricted to 200 words and comments will be...

  19. Forms & Documents | The Ames Laboratory

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

    Forms & Documents Incremental Budget Request Form FY 2016 Field Work Proposal (FWP) use for WAS Field Work Proposal (FWP) Out-of-Cycle use for proposals LDRD Budget Template New ...

  20. Paperclips Etc. Special Order Form

    Energy.gov [DOE] (indexed site)

    PSS-02.2 (March 7, 2011) Replaces PSS-02.1 PAPERCLIPS Etc. SPECIAL Orders Form This form is used to order supplies that are not readily available in the DOE HQ self-service supply...

  1. CSLB Forms | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Forms Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- OtherOther: CSLB FormsLegal Abstract The Colorado State Land Board (CSLB) provides various...

  2. ADOT Forms | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Forms Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- OtherOther: ADOT FormsLegal Abstract The Arizona Department of Transportation provides...

  3. NDSL Forms | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    NDSL Forms Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- OtherOther: NDSL FormsLegal Abstract The Nevada Division of State Lands provides...

  4. CSLC Forms | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Forms Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- OtherOther: CSLC FormsLegal Abstract The California State Lands Commission (CSLC) provides...

  5. WSDNR Forms | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Forms Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- OtherOther: WSDNR FormsLegal Abstract The Washington State Department of Natural Resources...

  6. HHS SMALL BUSINESS REVIEW FORM

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

    DOE Form 4220.2 (Revised March 14 2013) Office of Small and Disadvantaged Business Utilization DOE F 4220.2 - Small Business Review Form (03142013) OSDBU Control Number: ...

  7. ESA Forms | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    navigation, search OpenEI Reference LibraryAdd to library Web Site: ESA Forms Abstract Fish and Wildlife Service Fish and Wildlife Permit Application Forms Author U.S. Fish and...

  8. Benefit Forms | Department of Energy

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

    New Employee Orientation » Benefit Forms Benefit Forms The employment and benefits forms that you will be asked to complete as part of this orientation program can be numerous. Each, however, serves an important purpose in ensuring proper recording of your employment and benefit elections. This online program is designed to make the task a little easier. Each set of forms that you will work with has been compiled to ensure that you are only completing the essential documentation for your

  9. Prioritization Tool Measurement Input Form

    Office of Energy Efficiency and Renewable Energy (EERE)

    BTO encourages stakeholders to recommend updates and improvements to the Prioritization Tool by using the below Measure Input Form.

  10. Document Certification and Transmittal Form

    Energy.gov [DOE]

    Use this form to submit a NEPA document to the Office of NEPA Policy and Compliance for website posting.

  11. Quantum Theory of (H,H{Sub 2}) Scattering: Approximate Treatments of Reactive Scattering

    DOE R&D Accomplishments

    Tang, K. T.; Karplus, M.

    1970-10-01

    A quantum mechanical study is made of reactive scattering in the (H, H{sub 2}) system. The problem is formulated in terms of a form of the distorted-wave Born approximation (DWBA) suitable for collisions in which all particles have finite mass. For certain incident energies, differential and total cross sections, as well as other attributes of the reactive collisions, (e.g. reaction configuration), are determined. Two limiting models in the DWBA formulation are compared; in one, the molecule is unperturbed by the incoming atom and in the other, the molecule adiabatically follows the incoming atom. For thermal incident energies and semi-empirical interaction potential employed, the adiabatic model seems to be more appropriate. Since the DWBA method is too complicated for a general study of the (H, H{sub 2}) reaction, a much simpler approximation method, the “linear model” is developed. This model is very different in concept from treatments in which the three atoms are constrained to move on a line throughout the collision. The present model includes the full three-dimensional aspect of the collision and it is only the evaluation of the transition matrix element itself that is simplified. It is found that the linear model, when appropriately normalized, gives results in good agreement with that of the DWBA method. By application of this model, the energy dependence, rotational state of dependence and other properties of the total and differential reactions cross sections are determined. These results of the quantum mechanical treatment are compared with the classical calculation for the same potential surface. The most important result is that, in agreement with the classical treatment, the differential cross sections are strongly backward peaked at low energies and shifts in the forward direction as the energy increases. Finally, the implications of the present calculations for a theory of chemical kinetics are discussed.

  12. Hawaii Well Abandonment Report Form (DLNR Form WAR) | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Notice Form Topic Well Abandonment Report Organization State of Hawaii Commission on Water Resource Management Published Publisher Not Provided, 012008 DOI Not Provided Check...

  13. Form

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

    must exist at the time the request is submitted. Orga nizati Pillsbury Winthrop Shaw Pi on Mailin g 909 Fannin Suite 2000 Addre 55 City Houston Enter description: 1. All...

  14. Forms

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

    completed 20 or more years of Reserve or National Guard service but will not receive a pension until age 60.) SF-181 Ethnicity and Race Identification Ethnicity and Race...

  15. Performance aspects of de Laval spray-forming nozzles

    SciTech Connect

    McHugh, K.M.; Key, J.F.

    1993-05-01

    Spray forming is a multiphase fabrication technology in which a spray of finely atomized liquid droplets is directed onto a suitably shaped substrate or pattern to produce a coherent, near-net-shape deposit The technology can simplify materials processing where simultaneously improving product quality. Researchers at the Idaho National Engineering Laboratory (INEL) are developing spray-forming technology for producing near-net-shape solids and coatings of a variety of metals, polymers, and composite materials using de Laval nozzles. Here we briefly describe the flow field characterization and atomization behavior of liquid metals in linear de Laval nozzles, and illustrate their versatility by summarizing results from three spray-forming programs. In one program, low-carbon steel strip >0.75 mm was produced. In another program, polymer membranes {approximately} 5 {mu}m thick were spray formed. Finally, recent results in spray forming molds, dies, and related tooling for rapid prototyping are described.

  16. Performance aspects of de Laval spray-forming nozzles

    SciTech Connect

    McHugh, K.M.; Key, J.F.

    1993-01-01

    Spray forming is a multiphase fabrication technology in which a spray of finely atomized liquid droplets is directed onto a suitably shaped substrate or pattern to produce a coherent, near-net-shape deposit The technology can simplify materials processing where simultaneously improving product quality. Researchers at the Idaho National Engineering Laboratory (INEL) are developing spray-forming technology for producing near-net-shape solids and coatings of a variety of metals, polymers, and composite materials using de Laval nozzles. Here we briefly describe the flow field characterization and atomization behavior of liquid metals in linear de Laval nozzles, and illustrate their versatility by summarizing results from three spray-forming programs. In one program, low-carbon steel strip >0.75 mm was produced. In another program, polymer membranes [approximately] 5 [mu]m thick were spray formed. Finally, recent results in spray forming molds, dies, and related tooling for rapid prototyping are described.

  17. Seal for fluid forming tools

    DOEpatents

    Golovashchenko, Sergey Fedorovich; Bonnen, John Joseph Francis

    2012-03-20

    An electro-hydraulic forming tool for forming a sheet metal blank in a one-sided die has first and second rigid rings that engage opposite sides of a sheet metal blank. The rigid rings are contained within slots on a die portion and a hydraulic force applicator portion of the forming tool. The seals are either resiliently biased by an elastomeric member or inherently resiliently biased into contact with the blank.

  18. Complaint Form | Department of Energy

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

    Complaint Form Complaint Form The Office of Inspector General (OIG) maintains a Hotline to facilitate the reporting of allegations of fraud, waste, abuse, or mismanagement in U.S. Department of Energy (DOE) programs or operations. To submit an allegation to the OIG, complete the form below. Acknowledgement * I acknowledge that I have read the Office of Inspector General Hotline section of the OIG website regarding issues which should be reported to the OIG, complaint processing, anonymity and

  19. System for forming janus particles

    DOEpatents

    Hong, Liang; Jiang, Shan; Granick, Steve

    2011-01-25

    The invention is a method of forming Janus particles, that includes forming an emulsion that contains initial particles, a first liquid, and a second liquid; solidifying the first liquid to form a solid that contains at least a portion of the initial particles on a surface of the solid; and treating the exposed particle sides with a first surface modifying agent, to form the Janus particles. Each of the initial particles on the surface has an exposed particle side and a blocked particle side.

  20. Technology Transfer Reporting Form | Department of Energy

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

    Transfer Reporting Form Technology Transfer Reporting Form PDF icon Technology Transfer Reporting Form More Documents & Publications Technology Partnership Ombudsman - Roles,...

  1. SNL Information Repository subscription form

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

    2015 SANDIA NATIONAL LABORATORIES HAZARDOUS WASTE INFORMATION REPOSITORY INDEX Subscription form for hard copy notices of updates Name: Address: City: State: Zip: Please check each topic for which you want to receive notices of updates. Public meeting notices Information repository updates Please mail completed form to: Anita Reiser Sandia National Laboratories PO Box 5800, MS 0729 Albuquerque NM 87185-0729

  2. Method of forming ceramic bricks

    DOEpatents

    Poeppel, R.B.; Claar, T.D.; Silkowski, P.

    1987-04-22

    A method for forming free standing ceramic bricks for use as tritium breeder material is disclosed. Aqueous solutions of sodium carbonate and potassium carbonate are mixed with an organic hydrocolloid dispersion and powdered lithium carbonate, spray dried, and ceramic bricks formed by molding in a die and firing.

  3. Method of forming ceramic bricks

    DOEpatents

    Poeppel, Roger B. (Glen Ellyn, IL); Claar, Terry D. (Newark, DE); Silkowski, Peter (Urbana, IL)

    1988-01-01

    A method for forming free standing ceramic bricks for use as tritium breeder material is disclosed. Aqueous solutions of sodium carbonate and potassium carbonate are mixed with an organic hydrocolloid dispersion and powdered lithium carbonate, spray dried, and ceramic bricks formed by molding in a die and firing.

  4. Method of forming ceramic bricks

    DOEpatents

    Poeppel, Roger B.; Claar, Terry D.; Silkowski, Peter

    1988-09-06

    A method for forming free standing ceramic bricks for use as tritium breeder material is disclosed. Aqueous solutions of sodium carbonate and potassium carbonate are mixed with an organic hydrocolloid dispersion and powdered lithium carbonate, spray dried, and ceramic bricks formed by molding in a die and firing.

  5. Oregon Modification Application Geothermal Wells Form | Open...

    OpenEI (Open Energy Information) [EERE & EIA]

    Modification Application Geothermal Wells Form Jump to: navigation, search OpenEI Reference LibraryAdd to library Form: Oregon Modification Application Geothermal Wells Form Form...

  6. TEPP - Exercise Evaluation Forms | Department of Energy

    Office of Environmental Management (EM)

    TEPP - Exercise Evaluation Forms TEPP - Exercise Evaluation Forms Hazardous Materials Exercise Evaluation Forms PDF icon Exercise Evaluation Forms More Documents & Publications...

  7. Approximate Computing

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

    space, get 33%-50% power savings Implemented These Ideas in Crayon System Crayon Software Architecture Cairo is a standard, widely-used graphics API Firefox, Graphviz, Poppler, ......

  8. Search for effects beyond the Born approximation in polarization transfer observables in $\\vec{e}p$ elastic scattering

    SciTech Connect

    Meziane, M; Brash, E J; Jones, M K; Luo, W; Pentchev, L; Perdrisat, C F; Puckett, A J.R.; Punjabi, V; Wesselmann, F R; Ahmidouch, A; Albayrak, I; Aniol, K A; Arrington, J; Asaturyan, A; Ates, O; Baghdasaryan, H; Benmokhtar, F; Bertozzi, W; Bimbot, L; Bosted, P; Boeglin, W; Butuceanu, C; Carter, P; Chernenko, S; Christy, E; Commisso, M; Cornejo, J C; Covrig, S; Danagoulian, S; Daniel, A; Davidenko, A; Day, D; Dhamija, S; Dutta, D; Ent, R; Frullani, S; Fenker, H; Frlez, E; Garibaldi, F; Gaskell, D; Gilad, S; Goncharenko, Y; Hafidi, K; Hamilton, D; Higinbothan, D W; Hinton, W; Horn, T; Hu, B; Huang, J; Huber, G M; Jensen, E; Kang, H; Keppel, C; Khandaker, M; King, P; Kirillov, D; Kohl, M; Kravtsov, V; Kumbartzki, G; Li, Y; Mamyan, V; Margaziotis, D J; Markowitz, P; Marsh, A; Matulenko, Y; Maxwell, J; Mbianda, G; Meekins, D; Melnick, Y; Miller, J; Mkrtchyan, A; Mkrtchyan, H; Moffit, B; Moreno, O; Mulholland, J; Narayan, A; Nuruzzaman,; Nedev, S; Piasetzky, E; Pierce, W; Piskunov, N M; Prok, Y; Ransome, R D; Razin, D S; Reimer, P E; Reinhold, J; Rondon, O; Shabestari, M; Shahinyan, A; Shestermanov, K; Sirca, S; Sitnik, I; Smykov, L; Smith, G; Solovyev, L; Solvignon, P; Subedi, R; Suleiman, R; Tomasi-Gustafsson, E; Vasiliev, A; Vanderhaeghen, M; Veilleux, M; Wojtsekhowski, B B; Wood, S; Ye, Z; Zanevsky, Y; Zhang, X; Zhang, Y; Zheng, X; Zhu, L

    2011-04-01

    Intensive theoretical and experimental efforts over the past decade have aimed at explaining the discrepancy between data for the proton electric to magnetic form factor ratio, $G_{E}/G_{M}$, obtained separately from cross section and polarization transfer measurements. One possible explanation for this difference is a two-photon-exchange (TPEX) contribution. In an effort to search for effects beyond the one-photon-exchange or Born approximation, we report measurements of polarization transfer observables in the elastic $H(\\vec{e},e'\\vec{p})$ reaction for three different beam energies at a fixed squared momentum transfer $Q^2 = 2.5$ GeV$^2$, spanning a wide range of the virtual photon polarization parameter, $\\epsilon$. From these measured polarization observables, we have obtained separately the ratio $R$, which equals $\\mu_p G_{E}/G_{M}$ in the Born approximation, and the longitudinal polarization transfer component $P_\\ell$, with statistical and systematic uncertainties of $\\Delta R \\approx \\pm 0.01 \\mbox{(stat)} \\pm 0.013 \\mbox{(syst)}$ and $\\Delta P_\\ell/P^{Born}_{\\ell} \\approx \\pm 0.006 \\mbox{(stat)}\\pm 0.01 \\mbox{(syst)}$. The ratio $R$ is found to be independent of $\\epsilon$ at the 1.5% level, while the $\\epsilon$ dependence of $P_\\ell$ shows an enhancement of $(2.3 \\pm 0.6) %$ relative to the Born approximation at large $\\epsilon$.

  9. Search for effects beyond the Born approximation in polarization transfer observables in e(pol)p elastic scattering.

    SciTech Connect

    Meziane, M.; Brash, E. J.; Jones, M. K.; Luo, W.; Pentchev, L.; Arrington, J.; Hafidi, K.; Reimer, P.; Solvignon, P.; Gep2 Collaboration

    2011-03-29

    Intensive theoretical and experimental efforts over the past decade have aimed at explaining the discrepancy between data for the proton electric to magnetic form factor ratio, G{sub E}/G{sub M}, obtained separately from cross section and polarization transfer measurements. One possible explanation for this difference is a two-photon-exchange contribution. In an effort to search for effects beyond the one-photon-exchange or Born approximation, we report measurements of polarization transfer observables in the elastic H({rvec e}, e' {rvec p}) reaction for three different beam energies at a Q{sup 2} = 2.5 GeV{sup 2}, spanning a wide range of the kinematic parameter {epsilon}. The ratio R, which equals {mu}{sub p}G{sub E}/G{sub M} in the Born approximation, is found to be independent of {epsilon} at the 1.5% level. The {epsilon} dependence of the longitudinal polarization transfer component P{sub {ell}} shows an enhancement of (2.3 {+-} 0.6)% relative to the Born approximation at large {epsilon}.

  10. A separate phase drag model and a surrogate approximation for simulation of the steam assisted gravity drainage (SAGD) process

    DOE PAGES [OSTI]

    Padrino-Inciarte, Juan Carlos; Ma, Xia; VanderHeyden, W. Brian; Zhang, Duan Zhong

    2016-01-01

    General ensemble phase averaged equations for multiphase flows have been specialized for the simulation of the steam assisted gravity drainage (SAGD) process. In the average momentum equation, fluid-solid and fluid-fluid viscous interactions are represented by separate force terms. This equation has a form similar to that of Darcy’s law for multiphase flow but augmented by the fluid-fluid viscous forces. Models for these fluid-fluid interactions are suggested and implemented into the numerical code CartaBlanca. Numerical results indicate that the model captures the main features of the multiphase flow in the SAGD process, but the detailed features, such as plumes are missed.more » We find that viscous coupling among the fluid phases is important. Advection time scales for the different fluids differ by several orders of magnitude because of vast viscosity differences. Numerically resolving all of these time scales is time consuming. To address this problem, we introduce a steam surrogate approximation to increase the steam advection time scale, while keeping the mass and energy fluxes well approximated. This approximation leads to about a 40-fold speed-up in execution speed of the numerical calculations at the cost of a few percent error in the relevant quantities.« less

  11. A separate phase drag model and a surrogate approximation for simulation of the steam assisted gravity drainage (SAGD) process

    SciTech Connect

    Padrino-Inciarte, Juan Carlos; Ma, Xia; VanderHeyden, W. Brian; Zhang, Duan Zhong

    2016-01-01

    General ensemble phase averaged equations for multiphase flows have been specialized for the simulation of the steam assisted gravity drainage (SAGD) process. In the average momentum equation, fluid-solid and fluid-fluid viscous interactions are represented by separate force terms. This equation has a form similar to that of Darcy’s law for multiphase flow but augmented by the fluid-fluid viscous forces. Models for these fluid-fluid interactions are suggested and implemented into the numerical code CartaBlanca. Numerical results indicate that the model captures the main features of the multiphase flow in the SAGD process, but the detailed features, such as plumes are missed. We find that viscous coupling among the fluid phases is important. Advection time scales for the different fluids differ by several orders of magnitude because of vast viscosity differences. Numerically resolving all of these time scales is time consuming. To address this problem, we introduce a steam surrogate approximation to increase the steam advection time scale, while keeping the mass and energy fluxes well approximated. This approximation leads to about a 40-fold speed-up in execution speed of the numerical calculations at the cost of a few percent error in the relevant quantities.

  12. NMOSE Forms | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    library Legal Document- Permit ApplicationPermit Application: NMOSE FormsLegal Published NA Year Signed or Took Effect 2012 Legal Citation Not provided DOI Not Provided Check for...

  13. Triggered pore-forming agents

    DOEpatents

    Bayley, Hagan; Walker, Barbara J.; Chang, Chung-yu; Niblack, Brett; Panchal, Rekha

    1998-01-01

    An inactive pore-forming agent which is activated to lytic function by a condition such as pH, light, heat, reducing potential, or metal ion concentration, or substance such as a protease, at the surface of a cell.

  14. EIA-412 Form and Instructions

    Gasoline and Diesel Fuel Update

    METHOD OF FILING RESPONSE Submit your data electronically over the Internet using our web-based form. Log on to https:elecidc.eia.doe.gov Web-based Survey Information EIA uses ...

  15. FAQs for Survey Forms 914

    Gasoline and Diesel Fuel Update

    ... May the oil or gas volumes be submitted separately? Where are oil sales submitted (web or ... If you're using the web form there are comments you can select from the drop down list or ...

  16. Process for forming planarized films

    DOEpatents

    Pang, Stella W.; Horn, Mark W.

    1991-01-01

    A planarization process and apparatus which employs plasma-enhanced chemical vapor deposition (PECVD) to form plarnarization films of dielectric or conductive carbonaceous material on step-like substrates.

  17. SSRL User Financial Account Form

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

    07/25/16 SSRL User Financial Account Form Establish an SSRL user financial account at SLAC to procure gases, chemicals, supplies or services to support your experiment at SLAC's user facilities or to send samples, dewars, or other equipment between SLAC and your institution. To open or renew your SLAC user financial account, complete and submit this form along with a Purchase Order (PO) from your institution. The PO should be made to SLAC National Accelerator Laboratory for the amount of

  18. Methods of forming hardened surfaces

    DOEpatents

    Branagan, Daniel J. (Iona, ID)

    2004-07-27

    The invention encompasses a method of forming a metallic coating. A metallic glass coating is formed over a metallic substrate. After formation of the coating, at least a portion of the metallic glass can be converted into a crystalline material having a nanocrystalline grain size. The invention also encompasses metallic coatings comprising metallic glass. Additionally, the invention encompasses metallic coatings comprising crystalline metallic material, with at least some of the crystalline metallic material having a nanocrystalline grain size.

  19. Radiation Safety Work Control Form

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

    Radiation Safety Work Control Form (see instructions on pg-3) Rev. May 2014 Area: Form #: Date: Preliminary Applicability Screen: (a) Will closing the beam line injection stoppers mitigate the radiological hazards introduced by the proposed work? Yes No (b) Can the closed state of the beam line injection stoppers be assured during the proposed work (ie., work does NOT involve injection stoppers or associated HPS)? Yes No If the answers to both questions are yes, the work can be performed safely

  20. Method for forming metal contacts

    DOEpatents

    Reddington, Erik; Sutter, Thomas C; Bu, Lujia; Cannon, Alexandra; Habas, Susan E; Curtis, Calvin J; Miedaner, Alexander; Ginley, David S; Van Hest, Marinus Franciscus Antonius Maria

    2013-09-17

    Methods of forming metal contacts with metal inks in the manufacture of photovoltaic devices are disclosed. The metal inks are selectively deposited on semiconductor coatings by inkjet and aerosol apparatus. The composite is heated to selective temperatures where the metal inks burn through the coating to form an electrical contact with the semiconductor. Metal layers are then deposited on the electrical contacts by light induced or light assisted plating.

  1. Chevron, GE form Technology Alliance

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

    Chevron, GE form Technology Alliance Chevron, GE form Technology Alliance The Chevron GE Technology Alliance will develop and commercialize valuable technologies to solve critical needs for the oil and gas industry. February 3, 2014 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Los

  2. Supplier Information Form | Argonne National Laboratory

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

    Supplier Information Form PDF icon SB_SIF_form_Rev_0110

  3. LBNL Affiliate Forms - 88-Inch Cyclotron

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

    New Users‎ > ‎ LBNL Affiliate Forms Affiliate Forms (click here to open pdf)

  4. A simple approximation for the current-voltage characteristics of high-power, relativistic diodes

    DOE PAGES [OSTI]

    Ekdahl, Carl

    2016-06-01

    A simple approximation for the current-voltage characteristics of a relativistic electron diode is presented. The approximation is accurate from non-relativistic through relativistic electron energies. Although it is empirically developed, it has many of the fundamental properties of the exact diode solutions. Lastly, the approximation is simple enough to be remembered and worked on almost any pocket calculator, so it has proven to be quite useful on the laboratory floor.

  5. Utah Antidegradation Review Form | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Utah Antidegradation Review Form Jump to: navigation, search OpenEI Reference LibraryAdd to library Form: Utah Antidegradation Review Form Form Type ApplicationNotice Form Topic...

  6. Paperwork Reduction Act Form | Department of Energy

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

    Paperwork Reduction Act Form Paperwork Reduction Act Form Collection Discontinuation Form Paperwork Reduction Act Form (17.93 KB) More Documents & Publications OMB83 D Discontinuance Form OMB 83 C Paperwork Reduction Act Submission (OMB 83-I)

  7. DOE - NNSA/NFO -- Request Forms

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

    Forms NNSANFO Language Options U.S. DOENNSA - Nevada Field Office Forms Click the links below to view the form. Complete the form by filling-out the form fields online and ...

  8. Mapping the genome of meta-generalized gradient approximation density functionals: The search for B97M-V

    SciTech Connect

    Mardirossian, Narbe; Head-Gordon, Martin

    2015-02-21

    A meta-generalized gradient approximation density functional paired with the VV10 nonlocal correlation functional is presented. The functional form is selected from more than 10{sup 10} choices carved out of a functional space of almost 10{sup 40} possibilities. Raw data come from training a vast number of candidate functional forms on a comprehensive training set of 1095 data points and testing the resulting fits on a comprehensive primary test set of 1153 data points. Functional forms are ranked based on their ability to reproduce the data in both the training and primary test sets with minimum empiricism, and filtered based on a set of physical constraints and an often-overlooked condition of satisfactory numerical precision with medium-sized integration grids. The resulting optimal functional form has 4 linear exchange parameters, 4 linear same-spin correlation parameters, and 4 linear opposite-spin correlation parameters, for a total of 12 fitted parameters. The final density functional, B97M-V, is further assessed on a secondary test set of 212 data points, applied to several large systems including the coronene dimer and water clusters, tested for the accurate prediction of intramolecular and intermolecular geometries, verified to have a readily attainable basis set limit, and checked for grid sensitivity. Compared to existing density functionals, B97M-V is remarkably accurate for non-bonded interactions and very satisfactory for thermochemical quantities such as atomization energies, but inherits the demonstrable limitations of existing local density functionals for barrier heights.

  9. Method of forming structural heliostat

    DOEpatents

    Anderson, Alfred J.

    1984-06-26

    In forming a heliostat having a main support structure and pivoting and tilting motors and gears and a mirror module for reflecting solar energy onto a collector, the improvement characterized by a method of forming the mirror module in which the mirror is laid upon a solid rigid supporting bed in one or more sections, with or without focusing; a mirror backing sheet is applied by first applying respective thin layers of silicone grease and, thereafter, progressively rolling application to eliminate air bubbles; followed by affixing of a substrate assembly to the mirror backing sheet to form a mirror module that does not curve because of thermally induced stresses and differential thermal expansion or contraction effects. The silicone grease also serves to dampen fluttering of the mirror and protect the mirror backside against adverse effects of the weather. Also disclosed are specific details of preferred embodiments.

  10. PROCESS OF FORMING POWDERED MATERIAL

    DOEpatents

    Glatter, J.; Schaner, B.E.

    1961-07-14

    A process of forming high-density compacts of a powdered ceramic material is described by agglomerating the powdered ceramic material with a heat- decompossble binder, adding a heat-decompossble lubricant to the agglomerated material, placing a quantity of the material into a die cavity, pressing the material to form a compact, pretreating the compacts in a nonoxidizing atmosphere to remove the binder and lubricant, and sintering the compacts. When this process is used for making nuclear reactor fuel elements, the ceramic material is an oxide powder of a fissionsble material and after forming, the compacts are placed in a cladding tube which is closed at its ends by vapor tight end caps, so that the sintered compacts are held in close contact with each other and with the interior wall of the cladding tube.

  11. Substrate system for spray forming

    DOEpatents

    Chu, Men G.; Chernicoff, William P.

    2002-01-01

    A substrate system for receiving a deposit of sprayed metal droplets including a movable outer substrate on which the sprayed metal droplets are deposited. The substrate system also includes an inner substrate disposed adjacent the outer substrate where the sprayed metal droplets are deposited on the outer substrate. The inner substrate includes zones of differing thermal conductivity to resist substrate layer porosity and to resist formation of large grains and coarse constituent particles in a bulk layer of the metal droplets which have accumulated on the outer substrate. A spray forming apparatus and associated method of spray forming a molten metal to form a metal product using the substrate system of the invention is also provided.

  12. Substrate system for spray forming

    DOEpatents

    Chu, Men G.; Chernicoff, William P.

    2000-01-01

    A substrate system for receiving a deposit of sprayed metal droplets including a movable outer substrate on which the sprayed metal droplets are deposited. The substrate system also includes an inner substrate disposed adjacent the outer substrate where the sprayed metal droplets are deposited on the outer substrate. The inner substrate includes zones of differing thermal conductivity to resist substrate layer porosity and to resist formation of large grains and coarse constituent particles in a bulk layer of the metal droplets which have accumulated on the outer substrate. A spray forming apparatus and associated method of spray forming a molten metal to form a metal product using the substrate system of the invention is also provided.

  13. Interacting-boson-approximation study on the nuclear structural factor in double-charge-exchange reactions

    SciTech Connect

    Wu, H.; Wang, R.; Liu, Y.; Zhao, E. , P.O. Box 8730, Beijing Physics Department, Suzhou University, Suzhou Institute of High Energy Physics, Academia Sinica, Beijing Institute of Theoretical Physics, Academia Sinica, Beijing )

    1992-04-01

    The double-charge-exchange (DCX) reaction with Ca isotopes as targets is studied by employing the interacting-boson approximation (IBA). A comparison between the IBA and the shell-model results shows that IBA is a good approximation of the shell model in describing the DCX reactions.

  14. Momentum and energy approximations for elementary squeeze-film damper flows

    SciTech Connect

    Crandall, S.H.; El-shafei, A.

    1993-09-01

    To provide understanding of the effects of inertia on squeeze-film damper performance, two elementary flow patterns are studied. These elementary flows each depend on a single generalized motion coordinate whereas general planar motions of a damper are described by two independent generalized coordinates. Momentum and energy approximations for the elementary flows are compared with exact solutions. It is shown that the energy approximation, not previously applied to squeeze films, is superior to the momentum approximation in that at low Reynolds number the energy approximations agree with the exact solutions to first order in the Reynolds number whereas there are 20 percent errors in the first-order terms of the momentum approximations. 17 refs.

  15. Technetium Immobilization Forms Literature Survey

    SciTech Connect

    Westsik, Joseph H.; Cantrell, Kirk J.; Serne, R. Jeffrey; Qafoku, Nikolla

    2014-05-01

    Of the many radionuclides and contaminants in the tank wastes stored at the Hanford site, technetium-99 (99Tc) is one of the most challenging to effectively immobilize in a waste form for ultimate disposal. Within the Hanford Tank Waste Treatment and Immobilization Plant (WTP), the Tc will partition between both the high-level waste (HLW) and low-activity waste (LAW) fractions of the tank waste. The HLW fraction will be converted to a glass waste form in the HLW vitrification facility and the LAW fraction will be converted to another glass waste form in the LAW vitrification facility. In both vitrification facilities, the Tc is incorporated into the glass waste form but a significant fraction of the Tc volatilizes at the high glass-melting temperatures and is captured in the off-gas treatment systems at both facilities. The aqueous off-gas condensate solution containing the volatilized Tc is recycled and is added to the LAW glass melter feed. This recycle process is effective in increasing the loading of Tc in the LAW glass but it also disproportionally increases the sulfur and halides in the LAW melter feed which increases both the amount of LAW glass and either the duration of the LAW vitrification mission or the required supplemental LAW treatment capacity.

  16. Triggered pore-forming agents

    DOEpatents

    Bayley, H.; Walker, B.J.; Chang, C.Y.; Niblack, B.; Panchal, R.

    1998-07-07

    An inactive pore-forming agent is revealed which is activated to lytic function by a condition such as pH, light, heat, reducing potential, or metal ion concentration, or substance such as a protease, at the surface of a cell. 30 figs.

  17. Spin-forming Project Report

    SciTech Connect

    Switzner, Nathan; Henry, Dick

    2009-03-20

    In a second development order, spin-forming equipment was again evaluated using the test shape, a hemispherical shell. In this second development order, pure vanadium and alloy titanium (Ti-6Al-4V) were spin-formed, as well as additional copper and 21-6-9 stainless. In the first development order the following materials had been spin-formed: copper (alloy C11000 ETP), 6061 aluminum, 304L stainless steel, 21-6-9 stainless steel, and tantalum-2.5% tungsten. Significant challenges included properly adjusting the rotations-per-minute (RPM), cracking at un-beveled edges and laser marks, redressing of notches, surface cracking, non-uniform temperature evolution in the titanium, and cracking of the tailstock. Lessons learned were that 300 RPM worked better than 600 RPM for most materials (at the feed rate of 800 mm/min); beveling the edges to lower the stress reduces edge cracking; notches, laser marks, or edge defects in the preform doom the process to cracking and failure; coolant is required for vanadium spin-forming; increasing the number of passes to nine or more eliminates surface cracking for vanadium; titanium develops a hot zone in front of the rollers; and the tailstock should be redesigned to eliminate the cylindrical stress concentrator in the center.

  18. ExRep_form.indd

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

    Report Submit all experiment reports using this fillable pdf form and upload the saved file using the LANSCE proposals Websi After logging in, click the "Upload Experiment Report" link in the proposal actions view table. Local contact Flight path/instrument Proposal number Title Authors and Affiliations Experiment report

  19. Process for forming sulfuric acid

    DOEpatents

    Lu, Wen-Tong P.

    1981-01-01

    An improved electrode is disclosed for the anode in a sulfur cycle hydrogen generation process where sulfur dioxie is oxidized to form sulfuric acid at the anode. The active compound in the electrode is palladium, palladium oxide, an alloy of palladium, or a mixture thereof. The active compound may be deposited on a porous, stable, conductive substrate.

  20. HHS SMALL BUSINESS REVIEW FORM

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

    Form 4220.2 (Revised January 2014) Office of Small and Disadvantaged Business Utilization Small Business Review OSDBU Control Number: _______________________________________Date Received: ______________________________ A. Project Information 1. Requisition Number: ________________________ Acquisition Instrument Proposed/Contract Type: [ ] Contract No (Mod): ______________________ [ ] Departmental IDIQ No: ___________________ [ ] GSA Schedule: _________________________ [ ] GWAC Contract:

  1. Chloride chemical form in various types of fly ash

    SciTech Connect

    Fenfen Zhu; Masaki Takaoka; Kenji Shiota; Kazuyuki Oshita; Yoshinori Kitajima

    2008-06-01

    Chloride content is a critical problem for the reuse of fly ash as a raw material in cement, and the method used by recyclers to reduce the fly ash chloride content depends on the chemical form of the chlorides. However, limited information is available on the quantitative distribution of chlorides and the identity of some chlorides such as Friedel's salt. We examined chloride forms and percentages using X-ray absorption near edge structure and X-ray diffraction analyses, as well as corresponding washing experiments. Approximately 15% of the chlorine in raw fly ash was estimated to be in the form of NaCl, 10% in KCl, 50% in CaCl{sub 2}, and the remainder in the form of Friedel's salt. Fly ash collected in a bag filter with the injection of calcium hydroxide for acid gas removal (CaFA) contained 35% chlorine as NaCl, 11% as KCl, 37% as CaCl{sub 2}, 13% as Friedel's salt, and the remaining 4% as CaClOH. In fly ash collected in a bag filter with the injection of sodium bicarbonate for acid gas removal (NaFA), approximately 79% of chlorine was in NaCl, 12% was in KCl, and 9% was in Friedel's salt. 25 refs., 4 figs., 4 tabs.

  2. Security Review Processing Form | Department of Energy

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

    Security Review Processing Form Security Review Processing Form Security Review Process - Please review carefully. Security Acknowledge Form - Complete and return immediately. ...

  3. ORPS Facility Registration Form | Department of Energy

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

    PDF icon ORPS Facility Registration Form More Documents & Publications ORPS User Registration Form Design Code Survey Form Federal Building Energy Use Benchmarking Guidance, August ...

  4. Convergence properties of polynomial chaos approximations for L2 random variables.

    SciTech Connect

    Field, Richard V., Jr. (.,; .); Grigoriu, Mircea (Cornell University, Ithaca, NY)

    2007-03-01

    Polynomial chaos (PC) representations for non-Gaussian random variables are infinite series of Hermite polynomials of standard Gaussian random variables with deterministic coefficients. For calculations, the PC representations are truncated, creating what are herein referred to as PC approximations. We study some convergence properties of PC approximations for L{sub 2} random variables. The well-known property of mean-square convergence is reviewed. Mathematical proof is then provided to show that higher-order moments (i.e., greater than two) of PC approximations may or may not converge as the number of terms retained in the series, denoted by n, grows large. In particular, it is shown that the third absolute moment of the PC approximation for a lognormal random variable does converge, while moments of order four and higher of PC approximations for uniform random variables do not converge. It has been previously demonstrated through numerical study that this lack of convergence in the higher-order moments can have a profound effect on the rate of convergence of the tails of the distribution of the PC approximation. As a result, reliability estimates based on PC approximations can exhibit large errors, even when n is large. The purpose of this report is not to criticize the use of polynomial chaos for probabilistic analysis but, rather, to motivate the need for further study of the efficacy of the method.

  5. Forms | Y-12 National Security Complex

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

    Forms Forms The following are the official Y-12 forms needed by the public. Forms are provided in one or more of three formats: PDF fillable, Word, and HTML. Select a category to...

  6. Method of forming calthrate ice

    DOEpatents

    Hino, T.; Gorski, A.J.

    1985-09-30

    A method of forming clathrate ice in a supercooled water-based liquid contained in a vessel is disclosed. Initially, an oscillator device is located in the liquid in the vessel. The oscillator device is then oscillated ultransonically so that small crystals are formed in the liquid. Thes small crystals serve as seed crystals for ice formation in the liquid and thereby prevent supercooling of the liquid. Preferably, the oscillating device is controlled by a thermostat which initiates operation of the oscillator device when the temperature of the liquid is lowered to the freezing point. Thereafter, the operation of the oscillator device is terminated when ice is sensed in the liquid by an ice sensor.

  7. Method of forming clathrate ice

    DOEpatents

    Hino, Toshiyuki (Tokyo, JP); Gorski, Anthony J. (Lemont, IL)

    1987-01-01

    A method of forming clathrate ice in a supercooled water-based liquid contained in a vessel is disclosed. Initially, an oscillator device is located in the liquid in the vessel. The oscillator device is then oscillated ultrasonically so that small crystals are formed in the liquid. These small crystals serve as seed crystals for ice formation in the liquid and thereby prevent supercooling of the liquid. Preferably, the oscillating device is controlled by a thermostat which initiates operation of the oscillator device when the temperature of the liquid is lowered to the freezing point. Thereafter, the operation of the oscillator device is terminated when ice is sensed in the liquid by an ice sensor.

  8. Unsplit bipolar pulse forming line

    DOEpatents

    Rhodes, Mark A.

    2011-05-24

    A bipolar pulse forming transmission line module and system for linear induction accelerators having first, second, third, and fourth planar conductors which form a sequentially arranged interleaved stack having opposing first and second ends, with dielectric layers between the conductors. The first and second planar conductors are connected to each other at the first end, and the first and fourth planar conductors are connected to each other at the second end via a shorting plate. The third planar conductor is electrically connectable to a high voltage source, and an internal switch functions to short at the first end a high voltage from the third planar conductor to the fourth planar conductor to produce a bipolar pulse at the acceleration axis with a zero net time integral. Improved access to the switch is enabled by an aperture through the shorting plate and the proximity of the aperture to the switch.

  9. Method of forming a joint

    DOEpatents

    Butt, Darryl Paul; Cutler, Raymond Ashton; Rynders, Steven Walton; Carolan, Michael Francis

    2006-08-22

    A method of joining at least two sintered bodies to form a composite structure, including providing a first multicomponent metallic oxide having a perovskitic or fluorite crystal structure; providing a second sintered body including a second multicomponent metallic oxide having a crystal structure of the same type as the first; and providing at an interface a joint material containing at least one metal oxide containing at least one metal identically contained in at least one of the first and second multicomponent metallic oxides. The joint material is free of cations of Si, Ge, Sn, Pb, P and Te and has a melting point below the sintering temperatures of both sintered bodies. The joint material is heated to a temperature above the melting point of the metal oxide(s) and below the sintering temperatures of the sintered bodies to form the joint. Structures containing such joints are also disclosed.

  10. Chevron, GE form Technology Alliance

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

    Chevron, GE form Technology Alliance February 3, 2014 HOUSTON, TX, Feb. 3, 2014-Chevron Energy Technology Company and GE Oil & Gas announced today the creation of the Chevron GE Technology Alliance, which will develop and commercialize valuable technologies to solve critical needs for the oil and gas industry. The Alliance builds upon a current collaboration on flow analysis technology for oil and gas wells. It will leverage research and development from GE's newest Global Research Center,

  11. Disclosure of Lobbying Activities Form

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

    Approved by OMB 0348-0046 Disclosure of Lobbying Activities Complete this form to disclose lobbying activities pursuant to 31 U.S.C. 1352 (See reverse for public burden disclosure) | Type of Federal Action: a. contract ____ b. grant c. cooperative agreement d. loan e. loan guarantee f. loan insurance | Status of Federal Action: a. bid/offer/application _____ b. initial award c. post-award | Report Type: a. initial filing _____ b. material change | |Name and Address of Reporting Entity: ____

  12. Rib forming tool for tubing

    DOEpatents

    Rowley, James P.; Lewandowski, Edward F.; Groh, Edward F.

    1976-01-01

    Three cylindrical rollers are rotatably mounted equidistant from the center of a hollow tool head on radii spaced 120.degree. apart. Each roller has a thin flange; the three flanges lie in a single plane to form an internal circumferential rib in a rotating tubular workpiece. The tool head has two complementary parts with two rollers in one part of the head and one roller in the other part; the two parts are joined by a hinge. A second hinge, located so the rollers are between the two hinges, connects one of the parts to a tool bar mounted in a lathe tool holder. The axes of rotation of both hinges and all three rollers are parallel. A hole exposing equal portions of the three roller flanges is located in the center of the tool head. The two hinges permit the tool head to be opened and rotated slightly downward, taking the roller flanges out of the path of the workpiece which is supported on both ends and rotated by the lathe. The parts of the tool head are then closed on the workpiece so that the flanges are applied to the workpiece and form the rib. The tool is then relocated for forming of the next rib.

  13. Insight into organic reactions from the direct random phase approximation and its corrections

    SciTech Connect

    Ruzsinszky, Adrienn; Zhang, Igor Ying; Scheffler, Matthias

    2015-10-14

    The performance of the random phase approximation (RPA) and beyond-RPA approximations for the treatment of electron correlation is benchmarked on three different molecular test sets. The test sets are chosen to represent three typical sources of error which can contribute to the failure of most density functional approximations in chemical reactions. The first test set (atomization and n-homodesmotic reactions) offers a gradually increasing balance of error from the chemical environment. The second test set (Diels-Alder reaction cycloaddition = DARC) reflects more the effect of weak dispersion interactions in chemical reactions. Finally, the third test set (self-interaction error 11 = SIE11) represents reactions which are exposed to noticeable self-interaction errors. This work seeks to answer whether any one of the many-body approximations considered here successfully addresses all these challenges.

  14. Onsets of hierarchy truncation and self–consistent Born approximation with quantum mechanics prescriptions invariance

    SciTech Connect

    Zhang, Hou-Dao; Yan, YiJing

    2015-12-07

    The issue of efficient hierarchy truncation is related to many approximate theories. In this paper, we revisit this issue from both the numerical efficiency and quantum mechanics prescription invariance aspects. The latter requires that the truncation approximation made in Schrödinger picture, such as the quantum master equations and their self–consistent–Born–approximation improvements, should be transferable to their Heisenberg–picture correspondences, without further approximations. We address this issue with the dissipaton equation of motion (DEOM), which is a unique theory for the dynamics of not only reduced systems but also hybrid bath environments. We also highlight the DEOM theory is not only about how its dynamical variables evolve in time, but also the underlying dissipaton algebra. We demonstrate this unique feature of DEOM with model systems and report some intriguing nonlinear Fano interferences characteristics that are experimentally measurable.

  15. Far-Field Approximation in the Generalized Geometry Holdup (GGH) Model

    SciTech Connect

    Oberer, R. B.; Gunn, C. A.; Chiang, L.G.

    2006-09-07

    Quantitative gamma spectrometry measurements of uranium frequently require corrections for attenuation by an equipment or container layer and by the uranium bearing material itself. It is common to correct for attenuation using the ''far-field approximation''. Under this approximation, the minimum thickness of equipment or material is used for the correction rather than an average thickness over the detector field-of-view. In reality this aspect of the far-field approximation is really a narrow field-of-view approximation. The price of this simplification is the introduction of a bias. This bias will be investigated in this paper. In addition, there is a distance dependence of the radial response of a detector. This dependence will also be investigated.

  16. Diffusion approximations to the chemical master equation only have a consistent stochastic thermodynamics at chemical equilibrium

    SciTech Connect

    Horowitz, Jordan M.

    2015-07-28

    The stochastic thermodynamics of a dilute, well-stirred mixture of chemically reacting species is built on the stochastic trajectories of reaction events obtained from the chemical master equation. However, when the molecular populations are large, the discrete chemical master equation can be approximated with a continuous diffusion process, like the chemical Langevin equation or low noise approximation. In this paper, we investigate to what extent these diffusion approximations inherit the stochastic thermodynamics of the chemical master equation. We find that a stochastic-thermodynamic description is only valid at a detailed-balanced, equilibrium steady state. Away from equilibrium, where there is no consistent stochastic thermodynamics, we show that one can still use the diffusive solutions to approximate the underlying thermodynamics of the chemical master equation.

  17. CERAMIC WASTE FORM DATA PACKAGE

    SciTech Connect

    Amoroso, J.; Marra, J.

    2014-06-13

    The purpose of this data package is to provide information about simulated crystalline waste forms that can be used to select an appropriate composition for a Cold Crucible Induction Melter (CCIM) proof of principle demonstration. Melt processing, viscosity, electrical conductivity, and thermal analysis information was collected to assess the ability of two potential candidate ceramic compositions to be processed in the Idaho National Laboratory (INL) CCIM and to guide processing parameters for the CCIM operation. Given uncertainties in the CCIM capabilities to reach certain temperatures throughout the system, one waste form designated 'Fe-MP' was designed towards enabling processing and another, designated 'CAF-5%TM-MP' was designed towards optimized microstructure. Melt processing studies confirmed both compositions could be poured from a crucible at 1600{degrees}C although the CAF-5%TM-MP composition froze before pouring was complete due to rapid crystallization (upon cooling). X-ray diffraction measurements confirmed the crystalline nature and phase assemblages of the compositions. The kinetics of melting and crystallization appeared to vary significantly between the compositions. Impedance spectroscopy results indicated the electrical conductivity is acceptable with respect to processing in the CCIM. The success of processing either ceramic composition will depend on the thermal profiles throughout the CCIM. In particular, the working temperature of the pour spout relative to the bulk melter which can approach 1700{degrees}C. The Fe-MP composition is recommended to demonstrate proof of principle for crystalline simulated waste forms considering the current configuration of INL's CCIM. If proposed modifications to the CCIM can maintain a nominal temperature of 1600{degrees}C throughout the melter, drain, and pour spout, then the CAF-5%TM-MP composition should be considered for a proof of principle demonstration.

  18. Tests of Monte Carlo Independent Column Approximation in the ECHAM5

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

    Atmospheric GCM Tests of Monte Carlo Independent Column Approximation in the ECHAM5 Atmospheric GCM Raisanen, Petri Finnish Meteoroligical Institute Jarvenoja, Simo Finnish Meteorological Institute Jarvinen, Heikki Finnish Meteorological Institute Category: Modeling The Monte Carlo Independent Column Approximation (McICA) was recently introduced as a new approach for parametrizing broadband radiative fluxes in global climate models (GCMs). The McICA allows a flexible description of

  19. Approximately 10,000 legacy DOE R&D documents added to Information Bridge

    Office of Scientific and Technical Information (OSTI)

    searchable database | OSTI, US Dept of Energy Office of Scientific and Technical Information Approximately 10,000 legacy DOE R&D documents added to Information Bridge searchable database Back to the OSTI News Listing for 2008 OSTI recently completed a digitization load of legacy technical reports issued during 1991 to 1994. This process added approximately 10,000 documents to the Information Bridge database, bringing the total (1991 to present) to more than 165,000 fully searchable

  20. Rapid Freeform Sheet Metal Forming

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

    Vij Kiridena, Ford Motor Company U.S. DOE Advanced Manufacturing Office Program Review Meeting Washington, D.C. June 14, 2016 This presentation does not contain any proprietary, confidential, or otherwise restricted information. Project Objective  Develop a transformational RApid Freeform sheet metal Forming Technology (RAFFT) to deliver:  A sheet metal parts (up to 2.0 m x 1.5 m)  Dimensional accuracy (± 1.0 mm) & surface finish (Ra < 30 µm)  3-day art to part total time

  1. DOE Form 1332.4

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

    2 DOE F 243.2 Records Scheduling Request DOE F 243 2 Records Scheduling Request Form (1).pdf (335.35 KB) More Documents & Publications DOE F 243.5 Electronic Recordkeeping System Questionnaire Records Management Handbook Records Management Handbook Energy

    5 Electronic Recordkeeping System Questionnaire DOE F 243.5 Electronic Recordkeeping System Questionnaire DOE F 243.5 Electronic Recordkeeping System Questionnaire.pdf (69.34 KB) More Documents & Publications DOE F 243.5

  2. RadBudgForm.revised

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

    RADIATION BUDGET FORM PAGE NUM/REV 1/- Fill in blanks or (preferably) provide in tab-separated or Excel/WKS format. Hall (circle one): A B C experiment num.: _______________ drawing num. supplied: _______________ name of liaison: _________________________ run hours (100% effect.) days* 0.0 setup number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 beam energy GeV beam current uA(CW) mean polarization % exp/target ID number exp't target material (1) exp't target thickness (1) mg/cm2 exp't target

  3. FORMING PROTECTIVE FILMS ON METAL

    DOEpatents

    Gurinsky, D.H.; Kammerer, O.F.; Sadofsky, J.; Weeks, J.R.

    1958-12-16

    Methods are described of inhibiting the corrosion of ferrous metal by contact with heavy liquid metals such as bismuth and gallium at temperatures above 500 icient laborato C generally by bringing nltrogen and either the metal zirconium, hafnium, or titanium into reactlve contact with the ferrous metal to form a thin adherent layer of the nitride of the metal and thereafter maintaining a fractional percentage of the metal absorbed in the heavy liquid metal in contact with the ferrous metal container. The general purpose for uslng such high boiling liquid metals in ferrous contalners would be as heat transfer agents in liquid-metal-fueled nuclear reactors.

  4. An efficient implementation of the Chebyshev Rational Approximation Method (CRAM) for solving the burnup equations

    SciTech Connect

    Pusa, M.; Leppaenen, J.

    2012-07-01

    The Chebyshev Rational Approximation Method (CRAM) has been recently introduced by the authors for solving the burnup equations with excellent results. This method has been shown to be capable of simultaneously solving an entire burnup system with thousands of nuclides both accurately and efficiently. The method was prompted by an analysis of the spectral properties of burnup matrices and it can be characterized as the best rational approximation on the negative real axis. The coefficients of the rational approximation are fixed and have been reported for various approximation orders. In addition to these coefficients, implementing the method only requires a linear solver. This paper describes an efficient method for solving the linear systems associated with the CRAM approximation. The introduced direct method is based on sparse Gaussian elimination where the sparsity pattern of the resulting upper triangular matrix is determined before the numerical elimination phase. The stability of the proposed Gaussian elimination method is discussed based on considering the numerical properties of burnup matrices. Suitable algorithms are presented for computing the symbolic factorization and numerical elimination in order to facilitate the implementation of CRAM and its adoption into routine use. The accuracy and efficiency of the described technique are demonstrated by computing the CRAM approximations for a large test case with over 1600 nuclides. (authors)

  5. Integrally formed radio frequency quadrupole

    DOEpatents

    Abbott, Steven R.

    1989-01-01

    An improved radio frequency quadrupole (10) is provided having an elongate housing (11) with an elongate central axis (12) and top, bottom and two side walls (13a-d) symmetrically disposed about the axis, and vanes (14a-d) formed integrally with the walls (13a-d), the vanes (14a-d) each having a cross-section at right angles to the central axis (12) which tapers inwardly toward the axis to form electrode tips (15a-d) spaced from each other by predetermined distances. Each of the four walls (13a-d), and the vanes (14a-d) integral therewith, is a separate structural element having a central lengthwise plane (16) passing through the tip of the vane, the walls (13a-d) having flat mounting surfaces (17, 18) at right angles to and parallel to the control plane (16), respectively, which are butted together to position the walls and vane tips relative to each other.

  6. Alumina forming iron base superalloy

    DOEpatents

    Yamamoto, Yukinori; Muralidharan, Govindarajan; Brady, Michael P.

    2014-08-26

    An austenitic stainless steel alloy, consists essentially of, in weight percent 2.5 to 4 Al; 25 to 35 Ni; 12 to 19 Cr; at least 1, up to 4 total of at least one element selected from the group consisting of Nb and Ta; 0.5 to 3 Ti; less than 0.5 V; 0.1 to 1 of at least on element selected from the group consisting of Zr and Hf; 0.03 to 0.2 C; 0.005 to 0.1 B; and base Fe. The weight percent Fe is greater than the weight percent Ni. The alloy forms an external continuous scale including alumina, and contains coherent precipitates of .gamma.'-Ni.sub.3Al, and a stable essentially single phase FCC austenitic matrix microstructure. The austenitic matrix is essentially delta-ferrite-free and essentially BCC-phase-free.

  7. Miscellaneous Waste-Form FEPs

    SciTech Connect

    A. Schenker

    2000-12-08

    The US DOE must provide a reasonable assurance that the performance objectives for the Yucca Mountain Project (YMP) potential radioactive-waste repository can be achieved for a 10,000-year post-closure period. The guidance that mandates this direction is under the provisions of 10 CFR Part 63 and the US Department of Energy's ''Revised Interim Guidance Pending Issuance of New US Nuclear Regulatory Commission (NRC) Regulations (Revision 01, July 22, 1999), for Yucca Mountain, Nevada'' (Dyer 1999 and herein referred to as DOE's Interim Guidance). This assurance must be demonstrated in the form of a performance assessment that: (1) identifies the features, events, and processes (FEPs) that might affect the performance of the potential geologic repository; (2) examines the effects of such FEPs on the performance of the potential geologic repository; (3) estimates the expected annual dose to a specified receptor group; and (4) provides the technical basis for inclusion or exclusion of specific FEPs.

  8. CFCNCA Sample Pledge Form | Department of Energy

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

    CFCNCA Sample Pledge Form CFCNCA Sample Pledge Form This file contains a sample pledge form and instructions for completing a paper donation through the CFC. CFCNCA Fall 2012 Sample Pledge Form.pdf (151.39 KB) More Documents & Publications CFCNCA Sample Pledge Form 2012 CFCNCA Catalog of Caring DOE F 3630.1 Rights and Benefits of Reservists Called to Active Duty

  9. Two Forms of Identification | Department of Energy

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

    Forms of Identification Two Forms of Identification Two Forms of Identification (95.07 KB) More Documents & Publications Self-Identification of Disability LNG Exports by Truck out of the U.S. Form LNG Imports by Truck into the U.S. Form

  10. Use of de Laval nozzles in spray forming

    SciTech Connect

    McHugh, K.M.; Key, J.F.

    1993-04-01

    Spray forming is a near-net-shape fabrication technology in which a spray of finely atomized liquid droplets is deposited onto a suitably-shaped substrate or pattern to produce a coherent solid. The technology offers unique opportunities for simplifying materials processing, oftentimes while substantially improving product quality. Spray forming is applicable to a wide range of metals and nonmetals, and offers property improvements resulting from rapid solidification (e.g. refined microstructures, extended solid solubilities, and reduced segregation). Economic benefits result from process simplification and the elimination of unit operations. Researchers at the Idaho National Engineering Laboratory (INEL) are developing spray-forming technology for producing near-net-shape solids and coatings of a variety of metals, polymers, and composite materials using de Laval nozzles. This paper briefly describes the atomization behavior of liquid metals in linear de Laval nozzles and illustrates the versatility of the process by summarizing results from two spray-forming programs. In one program, low-carbon steel strip > 0.75 mm thick was produced; in the other, polymer membranes {approximately}5 {mu}m thick were spray formed.

  11. Form W-9 (Rev. October 2007)

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

    Give form to the requester. Do not send to the IRS. Form W-9 Request for Taxpayer ... Date General Instructions Form W-9 (Rev. 10-2007) Part I Part II Business ...

  12. Postdoctoral Initial Discussion Form | Argonne National Laboratory

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

    Initial Discussion Form This form outlines initial goals and clarifies expectations between a postdoc and his/her supervisor for a successful and productive relationship. Microsoft Office document icon Postdoctoral Initial Discussion Form.doc

  13. DEQ UPDES Forms Website | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    UPDES Forms Website Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: DEQ UPDES Forms Website Abstract A website containing forms and guidance for...

  14. Employee Information Form | Department of Energy

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

    Information Form Employee Information Form New Employee Information Form (103.85 KB) More Documents & Publications TEE-0074 - In the Matter of GE Appliances & Lighting CX-007131: Categorical Exclusion Determination CX-007148: Categorical Exclusion Determination

  15. Capital Equipment Validation Form | The Ames Laboratory

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

    Capital Equipment Validation Form Version Number: 2.0 Document Number: Form 48100.001 Effective Date: 02/2015 File (public): Office spreadsheet icon form_48100.001_rev2.xls

  16. Form:EZFeed Policy | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Help Apps Datasets Community Login | Sign Up Search Form Edit History Form:EZFeed Policy Jump to: navigation, search This is the 'EZFeed Policy' form. To add a page with this...

  17. Gaussian approximations for stochastic systems with delay: Chemical Langevin equation and application to a Brusselator system

    SciTech Connect

    Brett, Tobias Galla, Tobias

    2014-03-28

    We present a heuristic derivation of Gaussian approximations for stochastic chemical reaction systems with distributed delay. In particular, we derive the corresponding chemical Langevin equation. Due to the non-Markovian character of the underlying dynamics, these equations are integro-differential equations, and the noise in the Gaussian approximation is coloured. Following on from the chemical Langevin equation, a further reduction leads to the linear-noise approximation. We apply the formalism to a delay variant of the celebrated Brusselator model, and show how it can be used to characterise noise-driven quasi-cycles, as well as noise-triggered spiking. We find surprisingly intricate dependence of the typical frequency of quasi-cycles on the delay period.

  18. Improved master equation approach to quantum transport: From Born to self-consistent Born approximation

    SciTech Connect

    Jin, Jinshuang; Li, Jun; Liu, Yu; Li, Xin-Qi; Yan, YiJing

    2014-06-28

    Beyond the second-order Born approximation, we propose an improved master equation approach to quantum transport under self-consistent Born approximation. The basic idea is to replace the free Green's function in the tunneling self-energy diagram by an effective reduced propagator under the Born approximation. This simple modification has remarkable consequences. It not only recovers the exact results for quantum transport through noninteracting systems under arbitrary voltages, but also predicts the challenging nonequilibrium Kondo effect. Compared to the nonequilibrium Green's function technique that formulates the calculation of specific correlation functions, the master equation approach contains richer dynamical information to allow more efficient studies for such as the shot noise and full counting statistics.

  19. Simulating higher-dimensional geometries in GADRAS using approximate one-dimensional solutions.

    SciTech Connect

    Thoreson, Gregory G.; Mitchell, Dean James; Harding, Lee T.

    2013-02-01

    The Gamma Detector Response and Analysis Software (GADRAS) software package is capable of simulating the radiation transport physics for one-dimensional models. Spherical shells are naturally one-dimensional, and have been the focus of development and benchmarking. However, some objects are not spherical in shape, such as cylinders and boxes. These are not one-dimensional. Simulating the radiation transport in two or three dimensions is unattractive because of the extra computation time required. To maintain computational efficiency, higher-dimensional geometries require approximations to simulate them in one-dimension. This report summarizes the theory behind these approximations, tests the theory against other simulations, and compares the results to experimental data. Based on the results, it is recommended that GADRAS users always attempt to approximate reality using spherical shells. However, if fissile material is present, it is imperative that the shape of the one-dimensional model matches the fissile material, including the use of slab and cylinder geometry.

  20. Relativistic equation of state at subnuclear densities in the Thomas-Fermi approximation

    SciTech Connect

    Zhang, Z. W.; Shen, H., E-mail: shennankai@gmail.com [School of Physics, Nankai University, Tianjin 300071 (China)

    2014-06-20

    We study the non-uniform nuclear matter using the self-consistent Thomas-Fermi approximation with a relativistic mean-field model. The non-uniform matter is assumed to be composed of a lattice of heavy nuclei surrounded by dripped nucleons. At each temperature T, proton fraction Y{sub p} , and baryon mass density ? {sub B}, we determine the thermodynamically favored state by minimizing the free energy with respect to the radius of the Wigner-Seitz cell, while the nucleon distribution in the cell can be determined self-consistently in the Thomas-Fermi approximation. A detailed comparison is made between the present results and previous calculations in the Thomas-Fermi approximation with a parameterized nucleon distribution that has been adopted in the widely used Shen equation of state.

  1. Research Form | Photosynthetic Antenna Research Center

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

    Research Form Research Form Students may arrange to receive credit andor choose to receive points toward the PARCI-CARES certificate through research in a faculty-supervised...

  2. 2015 Housing Innovation Awards Application Form | Department...

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

    Housing Innovation Awards Application Form 2015 Housing Innovation Awards Application Form ... The 2015 ceremony will take place at the EEBA Excellence in Building Conference & Expo ...

  3. Pulse Pressure Forming of Lightweight Materials, Development...

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

    Forming of Lightweight Materials, Development of High Strength Superplastic Al Sheet, Friction Stir Spot Welding of Advanced High Strength Steels Pulse Pressure Forming of...

  4. Alten Energias Renovables Sociedad Limitada formly Solpark |...

    OpenEI (Open Energy Information) [EERE & EIA]

    Alten Energias Renovables Sociedad Limitada formly Solpark Jump to: navigation, search Name: Alten Energias Renovables Sociedad Limitada (formly Solpark) Place: Bilbao, Spain...

  5. DOE Forms National Center for Photovoltaics

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

    Services » Forms » DOE Forms Management FAQ's DOE Forms Management FAQ's Facts.jpg What types of forms are there? Departmental Form: for use department-wide by DOE personnel only Headquarters (HQ) Form: developed or managed by a DOE Headquarters organization and generally for use by HQ or within an HQ element Local Form: for use within a specific DOE Field Office Optional Form: developed by a Federal agency for use by two or more agencies, or non-mandatory Government-wide use and approved by

  6. CDC DOGGR Forms | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    CDC DOGGR FormsLegal Abstract The California Department of Conservation (CDC) Division of Oil, Gas & Geothermal Resources (DOGGR) provides various forms and information related to...

  7. Form EIA-860 | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    LibraryAdd to library Form: Form EIA-860 Abstract The U.S. Energy Information Administration (EIA) requires certain developers of electric generating plants (meeting certain...

  8. CDOT Applications and Forms | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    to library Legal Document- OtherOther: CDOT Applications and FormsLegal Abstract The California Department of Transportation (CDOT) provides various applications and forms,...

  9. FAQs for Survey Forms 804 and 814

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

    intended for cracking into olefins. EIA-804 Survey form & instructions Contact: Robert Merriam, (202) 586-4615 EIA-814 Survey form & instructions Contact: Chris Buckner, (202)...

  10. Design Code Survey Form | Department of Energy

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

    Design Code Survey Form Design Code Survey Form Survey of Safety Software Used in Design of Structures, Systems, and Components 1. Introduction The Department's Implementation Plan ...

  11. New Species of Cyanobacteria Forms Intracellular Carbonates

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

    New Species of Cyanobacteria Forms Intracellular Carbonates New Species of Cyanobacteria Forms Intracellular Carbonates Print Wednesday, 30 January 2013 00:00 A new species of ...

  12. DOE Forms Management FAQ's | Department of Energy

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

    Services » Forms » DOE Forms Management FAQ's DOE Forms Management FAQ's Facts.jpg What types of forms are there? Departmental Form: for use department-wide by DOE personnel only Headquarters (HQ) Form: developed or managed by a DOE Headquarters organization and generally for use by HQ or within an HQ element Local Form: for use within a specific DOE Field Office Optional Form: developed by a Federal agency for use by two or more agencies, or non-mandatory Government-wide use and approved by

  13. Form 2C | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Application: Form 2CLegal Abstract Form 2C: Application for Permit to Discharge Wastewater - Existing Industrial Facilities, current through August 14, 2014. Published NA...

  14. Form 2B | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Application: Form 2BLegal Abstract Form 2B: Application for Permit to Discharge Wastewater from Concentrated Animal Feeding Operations and Aquatic Animal Production...

  15. California Water Forms | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Not provided DOI Not Provided Check for DOI availability: http:crossref.org Online Internet link for California Water Forms Citation California Water Forms(2009). Retrieved from...

  16. Arizona Department of Environmental Quality's Application Forms...

    OpenEI (Open Energy Information) [EERE & EIA]

    search OpenEI Reference LibraryAdd to library Web Site: Arizona Department of Environmental Quality's Application Forms and Guidance Website Abstract This site contains forms...

  17. The NERSC Allocation Request Form (ERCAP)

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

    via a web form known as the ERCAP (Energy Research Computing Allocations Process) Request Form. ERCAP is accessed through the NERSC Information Management (NIM) web interface ...

  18. Mentee Profile Form | Department of Energy

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

    Mentee Profile Form (241.46 KB) More Documents & Publications Mentor Profile Form Tools for the Mentor Tools for the Mentee Benefits Executive Resources Learning and Workforce ...

  19. Inflation in a two 3-form fields scenario

    SciTech Connect

    Kumar, K. Sravan; Marto, J.; Moniz, P. Vargas; Nunes, Nelson J. E-mail: jmarto@ubi.pt E-mail: pmoniz@ubi.pt

    2014-06-01

    A setting constituted by N 3-form fields, without any direct interaction between them, minimally coupled to gravity, is introduced in this paper as a framework to study the early evolution of the universe. We focus particularly on the two 3-forms case. An inflationary scenario is found, emerging from the coupling to gravity. More concretely, the fields coupled in this manner exhibit a complex interaction, mediated by the time derivative of the Hubble parameter. Our investigation is supported by means of a suitable choice of potentials, employing numerical methods and analytical approximations. In more detail, the oscillations on the small field limit become correlated, and one field is intertwined with the other. In this type of solution, a varying sound speed is present, together with the generation of isocurvature perturbations. The mentioned features allow to consider an interesting model, to test against observation. It is subsequently shown how our results are consistent with current CMB data (viz.Planck and BICEP2)

  20. Light emission from Si nanoclusters formed at low temperatures

    SciTech Connect

    Pi, X.D.; Zalloum, O.H.Y.; Roschuk, T.; Wojcik, J.; Knights, A.P.; Mascher, P.; Simpson, P.J.

    2006-03-06

    Photoluminescence (PL) from amorphous Si nanoclusters (Si-ncls) formed by thin-film deposition via electron-cyclotron resonance plasma-enhanced chemical vapor deposition followed by annealing at temperatures {<=}875 deg. C has been investigated. We find that Si-ncls grow very slowly after their initial nucleation at low temperatures. An increase in the size of Si-ncls, which can be controlled by the annealing temperature, induces a redshift in the Si-ncl PL peak. While the emitted optical power is more than 100 times smaller than that of Si nanocrystals formed in an identically deposited film, it is increased by a factor of up to approximately four times following hydrogen passivation. The incorporation of hydrogen causes a redshift in the PL peak position, suggesting a partial hydrogenation induced bond distortion of the Si-ncls. This redshift decreases with increasing hydrogen ambient annealing temperature.

  1. On the approximations of the distribution function of fusion alpha particles

    SciTech Connect

    Bilato, R. Brambilla, M.; Poli, E.

    2014-10-15

    The solution of the drift-kinetic equation for fusion-born alpha particles is derived in the limit of dominant parallel streaming, and it is related to the usual slowing-down distribution function. The typical approximations of the fast tail of fusion-born alpha particles are briefly compared and discussed. In particular, approximating the distribution function of fast-alpha particles with an “equivalent” Maxwellian is inaccurate to describe absorption of radio-frequency waves in the ion-cyclotron range of frequencies.

  2. Approximate local magnetic-to-electric surface operators for time-harmonic Maxwell's equations

    SciTech Connect

    El Bouajaji, M.

    2014-12-15

    The aim of this paper is to propose new local and accurate approximate magnetic-to-electric surface boundary operators for the three-dimensional time-harmonic Maxwell's equations. After their construction where their accuracy is improved through a regularization process, a localization of these operators and a full finite element approximation is introduced. Next, their numerical efficiency and accuracy is investigated in detail for different scatterers when these operators are used in the extreme situation of On-Surface Radiation Conditions methods.

  3. Numerical integration for ab initio many-electron self energy calculations within the GW approximation

    SciTech Connect

    Liu, Fang; Lin, Lin; Vigil-Fowler, Derek; Lischner, Johannes; Kemper, Alexander F.; Sharifzadeh, Sahar; Jornada, Felipe H. da; Deslippe, Jack; Yang, Chao; and others

    2015-04-01

    We present a numerical integration scheme for evaluating the convolution of a Green's function with a screened Coulomb potential on the real axis in the GW approximation of the self energy. Our scheme takes the zero broadening limit in Green's function first, replaces the numerator of the integrand with a piecewise polynomial approximation, and performs principal value integration on subintervals analytically. We give the error bound of our numerical integration scheme and show by numerical examples that it is more reliable and accurate than the standard quadrature rules such as the composite trapezoidal rule. We also discuss the benefit of using different self energy expressions to perform the numerical convolution at different frequencies.

  4. Forming chondrules in impact splashes. I. Radiative cooling model

    SciTech Connect

    Dullemond, Cornelis Petrus; Stammler, Sebastian Markus; Johansen, Anders

    2014-10-10

    The formation of chondrules is one of the oldest unsolved mysteries in meteoritics and planet formation. Recently an old idea has been revived: the idea that chondrules form as a result of collisions between planetesimals in which the ejected molten material forms small droplets that solidify to become chondrules. Pre-melting of the planetesimals by radioactive decay of {sup 26}Al would help produce sprays of melt even at relatively low impact velocity. In this paper we study the radiative cooling of a ballistically expanding spherical cloud of chondrule droplets ejected from the impact site. We present results from numerical radiative transfer models as well as analytic approximate solutions. We find that the temperature after the start of the expansion of the cloud remains constant for a time t {sub cool} and then drops with time t approximately as T ≅ T {sub 0}[(3/5)t/t {sub cool} + 2/5]{sup –5/3} for t > t {sub cool}. The time at which this temperature drop starts t {sub cool} depends via an analytical formula on the mass of the cloud, the expansion velocity, and the size of the chondrule. During the early isothermal expansion phase the density is still so high that we expect the vapor of volatile elements to saturate so that no large volatile losses are expected.

  5. ARM - Ingest Supporting Tools and Forms

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

    Forms Ingest Ingest Workflow Graphic Supporting Workflow Documentation Supporting Tools and Forms Process Configuration Manager (PCM) Metadata Management Tool (MMT) ARM Data Integrator (ADI) Ingest Readiness Form Associated Status Reports Contacts Engineering Processes Engineering Home Workflow Graphic Engineering Workflow Document Tools for Workflow ECR ECO BCR Ingests Value-Added Products Reprocessing Instruments Data System Elements Field Campaign Startup Ingest Supporting Tools and Forms

  6. Delta Dental Claim Form | Argonne National Laboratory

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

    Delta Dental Claim Form PDF icon 2010_DeltaDental_claimform

  7. Closeout Forms: Patent Certification | Department of Energy

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

    Closeout Forms: Patent Certification Closeout Forms: Patent Certification Closeout forms for the financial opportunities process. Patent Certification (DOE F2050.11) (71 KB) Patent Certification Instructions and Example (66.93 KB) More Documents & Publications DOE F 2050.11 C:\Forms\DOE F 2050.11.cdr Patent Certification

  8. Direct Deposit Form | Department of Energy

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

    Direct Deposit Form Direct Deposit Form Direct Deposit Form (66.61 KB) More Documents & Publications Employee In-Processing Forms Agreement for Minority Financial Institutions Participation in the Bank Deposit Financial Assistance Program Agreement for Minority Financial Institutions Participation in the Bank Deposit Financial Assistance Program

  9. Hydrogen atom excitation in intense attosecond laser field: Gauge dependence of dipole approximation

    SciTech Connect

    Aldarmaa, Ch. E-mail: l-xemee@yahoo.com; Khenmedekh, L. E-mail: l-xemee@yahoo.com; Lkhagva, O.

    2014-03-24

    It is assumed that, the atomic excitations probability can be calculated using first order perturbation theory and dipole approximations. The validity of the dipole approximations had been examined by comparing the results with the results obtained by exact calculations within the first order perturbation theory[2]. Figure 1 shows the time dependence of the transition probability in the dipole approximation. From these plots it is obvious that, the probabilities obtained in the length gauge are higher than that in the velocity gauge, in the interaction period (??/2approximation) calculations results. (Figure 2) Though the time evolution of the same transition probabilities are different for these cases, the final results are the same for all three cases, excluding the 6s-6p{sub 0} transition. For the later case, only the length gauge give a false results, but the velocity gauge give the same result as the exact one, for the final value of the transition probability.

  10. A New 2D-Transport, 1D-Diffusion Approximation of the Boltzmann Transport equation

    SciTech Connect

    Larsen, Edward

    2013-06-17

    The work performed in this project consisted of the derivation, implementation, and testing of a new, computationally advantageous approximation to the 3D Boltz- mann transport equation. The solution of the Boltzmann equation is the neutron flux in nuclear reactor cores and shields, but solving this equation is difficult and costly. The new “2D/1D” approximation takes advantage of a special geometric feature of typical 3D reactors to approximate the neutron transport physics in a specific (ax- ial) direction, but not in the other two (radial) directions. The resulting equation is much less expensive to solve computationally, and its solutions are expected to be sufficiently accurate for many practical problems. In this project we formulated the new equation, discretized it using standard methods, developed a stable itera- tion scheme for solving the equation, implemented the new numerical scheme in the MPACT code, and tested the method on several realistic problems. All the hoped- for features of this new approximation were seen. For large, difficult problems, the resulting 2D/1D solution is highly accurate, and is calculated about 100 times faster than a 3D discrete ordinates simulation.

  11. A new class of ensemble conserving algorithms for approximate quantum dynamics: Theoretical formulation and model problems

    SciTech Connect

    Smith, Kyle K. G.; Poulsen, Jens Aage Nyman, Gunnar; Rossky, Peter J.

    2015-06-28

    We develop two classes of quasi-classical dynamics that are shown to conserve the initial quantum ensemble when used in combination with the Feynman-Kleinert approximation of the density operator. These dynamics are used to improve the Feynman-Kleinert implementation of the classical Wigner approximation for the evaluation of quantum time correlation functions known as Feynman-Kleinert linearized path-integral. As shown, both classes of dynamics are able to recover the exact classical and high temperature limits of the quantum time correlation function, while a subset is able to recover the exact harmonic limit. A comparison of the approximate quantum time correlation functions obtained from both classes of dynamics is made with the exact results for the challenging model problems of the quartic and double-well potentials. It is found that these dynamics provide a great improvement over the classical Wigner approximation, in which purely classical dynamics are used. In a special case, our first method becomes identical to centroid molecular dynamics.

  12. An improved thin film approximation to accurately determine the optical conductivity of graphene from infrared transmittance

    SciTech Connect

    Weber, J. W.; Bol, A. A. [Department of Applied Physics, Eindhoven University of Technology, Den Dolech 2, P.O. Box 513, 5600 MB Eindhoven (Netherlands); Sanden, M. C. M. van de [Department of Applied Physics, Eindhoven University of Technology, Den Dolech 2, P.O. Box 513, 5600 MB Eindhoven (Netherlands); Dutch Institute for Fundamental Energy Research (DIFFER), Nieuwegein (Netherlands)

    2014-07-07

    This work presents an improved thin film approximation to extract the optical conductivity from infrared transmittance in a simple yet accurate way. This approximation takes into account the incoherent reflections from the backside of the substrate. These reflections are shown to have a significant effect on the extracted optical conductivity and hence on derived parameters as carrier mobility and density. By excluding the backside reflections, the error for these parameters for typical chemical vapor deposited (CVD) graphene on a silicon substrate can be as high as 17% and 45% for the carrier mobility and density, respectively. For the mid- and near-infrared, the approximation can be simplified such that the real part of the optical conductivity is extracted without the need for a parameterization of the optical conductivity. This direct extraction is shown for Fourier transform infrared (FTIR) transmittance measurements of CVD graphene on silicon in the photon energy range of 3707000?cm{sup ?1}. From the real part of the optical conductivity, the carrier density, mobility, and number of graphene layers are determined but also residue, originating from the graphene transfer, is detected. FTIR transmittance analyzed with the improved thin film approximation is shown to be a non-invasive, easy, and accurate measurement and analysis method for assessing the quality of graphene and can be used for other 2-D materials.

  13. Numerical approximation of the Schrdinger equation with the electromagnetic field by the Hagedorn wave packets

    SciTech Connect

    Zhou, Zhennan

    2014-09-01

    In this paper, we approximate the semi-classical Schrdinger equation in the presence of electromagnetic field by the Hagedorn wave packets approach. By operator splitting, the Hamiltonian is divided into the modified part and the residual part. The modified Hamiltonian, which is the main new idea of this paper, is chosen by the fact that Hagedorn wave packets are localized both in space and momentum so that a crucial correction term is added to the truncated Hamiltonian, and is treated by evolving the parameters associated with the Hagedorn wave packets. The residual part is treated by a Galerkin approximation. We prove that, with the modified Hamiltonian only, the Hagedorn wave packets dynamics give the asymptotic solution with error O(?{sup 1/2}), where ? is the scaled Planck constant. We also prove that, the Galerkin approximation for the residual Hamiltonian can reduce the approximation error to O(?{sup k/2}), where k depends on the number of Hagedorn wave packets added to the dynamics. This approach is easy to implement, and can be naturally extended to the multidimensional cases. Unlike the high order Gaussian beam method, in which the non-constant cut-off function is necessary and some extra error is introduced, the Hagedorn wave packets approach gives a practical way to improve accuracy even when ? is not very small.

  14. Extension of Chern-Simons forms

    SciTech Connect

    Konitopoulos, Spyros; Savvidy, George

    2014-06-15

    We investigate metric independent, gauge invariant, and closed forms in the generalized Yang-Mills (YM) theory. These forms are polynomial on the corresponding fields strength tensors curvature forms and are analogous to the Pontryagin-Chern densities in the YM gauge theory. The corresponding secondary characteristic classes have been expressed in integral form in analogy with the Chern-Simons form. Because they are not unique, the secondary forms can be dramatically simplified by the addition of properly chosen differentials of one-step-lower-order forms. Their gauge variation can also be found yielding the potential anomalies in the gauge field theory.

  15. Sample Forms | National Nuclear Security Administration | (NNSA)

    National Nuclear Security Administration (NNSA)

    Sample Forms U.S. Department of Energy / U.S. Nuclear Regulatory Commission Nuclear Materials Management & Safeguards System Sample Forms The below completed example forms contain "dummy" data for information purposes. For current up to date blank forms please go to the DOE/NRC forms link located on the NMMSS information page. Sample 740s DOE/NRC Form 740M Sample 742s and 742Cs 742 Example 1 Example 1A Example 2 Example 3 Example 3A Example 4 DOE/NRC Form 742 742C Example 1 Example

  16. ORPS User Registration Form | Department of Energy

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

    User Registration Form ORPS User Registration Form September 1, 2015 Operational Event Information Systems Registration Form For Occurrence Reporting and Processing System ORPS User Registration Form (486.14 KB) More Documents & Publications ORPS Facility Registration Form Occurrence Reporting and Processing System (ORPS) - PISA: TRU Waste Drums Containing Treated Nitrate Salts May Challenge the Safety Analysis Microsoft Word - CHAP02ESH _REVISED1_3.doc

  17. Forming the Future | Department of Energy

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

    Forming the Future Forming the Future This feature article from the April 2014 edition of the Fabricating and Forming Journal (FFJournal) describes how Ford Motor Co.'s sheet metal freeforming technology accelerates prototyping, taking stamping tool costs and lead time out of the equation. Reprinted with permission of FFJournal Forming the Future, FFJournal (April 2014) (863.4 KB) More Documents & Publications RAPID FREEFORM SHEET METAL FORMING: TECHNOLOGY DEVELOPMENT AND SYSTEM VERIFICATION

  18. Approximate simulation of CO[sub 2] and H[sub 2]S absorption into aqueous alkanolamines

    SciTech Connect

    Glasscock, D.A.; Rochelle, G.T. . Dept. of Chemical Engineering)

    1993-08-01

    Rigorous and approximate methods are compared for the simulation of CO[sub 2] absorption into aqueous alkanolamine mixtures of methyldiethanolamine and diethanolamine. In addition, data for the mixtures containing monoethanolamine and the simultaneous absorption of CO[sub 2] and H[sub 2]S are presented. For the rigorous approach, the simplified eddy diffusivity theory is used to simulate the liquid-phase hydrodynamic characteristics. The approximation methods examined are the pseudo-first-order approximation, the interpolation approximation of Wellek et al. (1978), the algebraic combined flux (ACFLUX) approximation and the modified combined flux (MCFLUX) approximation. The latter approximation utilizes the reaction zone concept to determine the kinetic preference of the absorbing gas at the gas-liquid interface. Under the range of conditions studied, the MCFLUX approximation predicts very accurately the CO[sub 2] and H[sub 2]S flux rates in mixed amine systems, as compared with the rigorous solution of the differential equations.

  19. Pre-form ceramic matrix composite cavity and method of forming and method of forming a ceramic matrix composite component

    DOEpatents

    Monaghan, Philip Harold; Delvaux, John McConnell; Taxacher, Glenn Curtis

    2015-06-09

    A pre-form CMC cavity and method of forming pre-form CMC cavity for a ceramic matrix component includes providing a mandrel, applying a base ply to the mandrel, laying-up at least one CMC ply on the base ply, removing the mandrel, and densifying the base ply and the at least one CMC ply. The remaining densified base ply and at least one CMC ply form a ceramic matrix component having a desired geometry and a cavity formed therein. Also provided is a method of forming a CMC component.

  20. Formation of less-known structurally complex ?{sub b} and orthorhombic quasicrystalline approximant ?{sub n} on solidification of selected AlPdCr alloys

    SciTech Connect

    Adamech, M.; ?erni?kov, I.; ?urika, L.; Kolesr, V.; Drienovsk, M.; Bednar?k, J.; Svoboda, M.; Janovec, J.

    2014-11-15

    The evolution of phases was investigated on cooling of Al{sub 71}Pd{sub 24}Cr{sub 5}, Al{sub 73}Pd{sub 20}Cr{sub 7}, and Al{sub 73}Pd{sub 23}Cr{sub 4} alloys from 1350 C down to ambient temperature with the rate of 10 Cmin{sup ?1}. To perform the investigation, differential thermal analysis, synchrotron X-ray powder diffraction, and scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy were used. In all the investigated alloys structurally complex phases ?{sub n} (?{sub 6} + ?{sub 28}) and ?{sub b}, as well as the ?-phase were identified. Based on the results of differential thermal analysis, sequences of phase transformations were determined. The Al{sub 71}Pd{sub 24}Cr{sub 5} alloy started to solidify at 1031.4 C through ?. Primary dendrites of ?{sub b} were observed in Al{sub 73}Pd{sub 20}Cr{sub 7} and Al{sub 73}Pd{sub 23}Cr{sub 4} alloys. In the second step of solidification ? and/or ?{sub b} were formed. The peritectic reaction, liquid + ?{sub b} + ? ? ?{sub n} + ?{sub b} + ?, leading to the formation of the quasicrystalline approximant ?{sub n} (?{sub 6} + ?{sub 28}) took place in the final step of solidification at approximately 792 C. - Highlights: Structurally complex ?{sub n} (?{sub 6} + ?{sub 28}), ?{sub b} and ?-phases were identified. The Al{sub 71}Pd{sub 24}Cr{sub 5} alloy started to solidify at 1031.4 C through the primary ? phase. The Al{sub 73}Pd{sub 20}Cr{sub 7} and Al{sub 73}Pd{sub 23}Cr{sub 4} alloys solidified in the same way. The quasicrystalline approximant ?{sub n} (?{sub 6} + ?{sub 28}) was formed at approximately 792 C.

  1. Relativistic quasiparticle time blocking approximation. II. Pygmy dipole resonance in neutron-rich nuclei

    SciTech Connect

    Litvinova, E.; Ring, P.; Tselyaev, V.; Langanke, K.

    2009-05-15

    Theoretical studies of low-lying dipole strength in even-even spherical nuclei within the relativistic quasiparticle time blocking approximation (RQTBA) are presented. The RQTBA developed recently as an extension of the self-consistent relativistic quasiparticle random-phase approximation (RQRPA) enables one to investigate the effects of the coupling of two-quasiparticle excitations to collective vibrations within a fully consistent calculation scheme based on covariant energy density functional theory. Dipole spectra of even-even {sup 130}Sn-{sup 140}Sn and {sup 68}Ni-{sup 78}Ni isotopes calculated within both RQRPA and RQTBA show two well-separated collective structures: the higher lying giant dipole resonance and the lower lying pygmy dipole resonance, which can be identified by the different behavior of the transition densities of states in these regions.

  2. LinguisticBelief: a java application for linguistic evaluation using belief, fuzzy sets, and approximate reasoning.

    SciTech Connect

    Darby, John L.

    2007-03-01

    LinguisticBelief is a Java computer code that evaluates combinations of linguistic variables using an approximate reasoning rule base. Each variable is comprised of fuzzy sets, and a rule base describes the reasoning on combinations of variables fuzzy sets. Uncertainty is considered and propagated through the rule base using the belief/plausibility measure. The mathematics of fuzzy sets, approximate reasoning, and belief/ plausibility are complex. Without an automated tool, this complexity precludes their application to all but the simplest of problems. LinguisticBelief automates the use of these techniques, allowing complex problems to be evaluated easily. LinguisticBelief can be used free of charge on any Windows XP machine. This report documents the use and structure of the LinguisticBelief code, and the deployment package for installation client machines.

  3. Distributed approximating functional approach to the Fokker{endash}Planck equation: Eigenfunction expansion

    SciTech Connect

    Zhang, D.S.; Wei, G.W.; Kouri, D.J.; Hoffman, D.K.

    1997-03-01

    The distributed approximating functional method is applied to the solution of the Fokker{endash}Planck equations. The present approach is limited to the standard eigenfunction expansion method. Three typical examples, a Lorentz Fokker{endash}Planck equation, a bistable diffusion model and a Henon{endash}Heiles two-dimensional anharmonic resonating system, are considered in the present numerical testing. All results are in excellent agreement with those of established methods in the field. It is found that the distributed approximating functional method yields the accuracy of a spectral method but with a local method{close_quote}s simplicity and flexibility for the eigenvalue problems arising from the Fokker{endash}Planck equations. {copyright} {ital 1997 American Institute of Physics.}

  4. Generalized Fokker-Planck Approximations of Particle Transport with Highly Forward-Peaked Scattering

    SciTech Connect

    Leakeas, Christopher L.; Larsen, Edward W.

    2001-03-15

    The Fokker-Planck equation is often used to approximate the description of particle transport processes with highly forward-peaked scattering. Pomraning has shown that if the physical scattering kernel is sufficiently dominated by small-angle scattering, then the Fokker-Planck equation is an asymptotic approximation to the linear Boltzmann equation. However, most physically-meaningful scattering kernels contain a sufficient amount of large-angle scattering that the asymptotic criterion is not met. Thus, in many physical problems, solutions of the Fokker-Planck equation are substantially in error. In this paper, Pomraning's asymptotic results are generalized and a new generalized Fokker-Planck (GFP) theory that robustly incorporates large-angle scattering is developed. Numerical experiments demonstrate that the resulting GFP equations are much more accurate than the standard Fokker-Planck equation.

  5. Study of multiband disordered systems using the typical medium dynamical cluster approximation

    SciTech Connect

    Zhang, Yi; Terletska, Hanna; Moore, C.; Ekuma, Chinedu; Tam, Ka-Ming; Berlijn, Tom; Ku, Wei; Moreno, Juana; Jarrell, Mark

    2015-11-06

    We generalize the typical medium dynamical cluster approximation to multiband disordered systems. Using our extended formalism, we perform a systematic study of the nonlocal correlation effects induced by disorder on the density of states and the mobility edge of the three-dimensional two-band Anderson model. We include interband and intraband hopping and an intraband disorder potential. Our results are consistent with those obtained by the transfer matrix and the kernel polynomial methods. We also apply the method to KxFe2-ySe2 with Fe vacancies. Despite the strong vacancy disorder and anisotropy, we find the material is not an Anderson insulator. Moreover our results demonstrate the application of the typical medium dynamical cluster approximation method to study Anderson localization in real materials.

  6. Two-component hybrid time-dependent density functional theory within the Tamm-Dancoff approximation

    SciTech Connect

    Khn, Michael; Weigend, Florian

    2015-01-21

    We report the implementation of a two-component variant of time-dependent density functional theory (TDDFT) for hybrid functionals that accounts for spin-orbit effects within the Tamm-Dancoff approximation (TDA) for closed-shell systems. The influence of the admixture of Hartree-Fock exchange on excitation energies is investigated for several atoms and diatomic molecules by comparison to numbers for pure density functionals obtained previously [M. Khn and F. Weigend, J. Chem. Theory Comput. 9, 5341 (2013)]. It is further related to changes upon switching to the local density approximation or using the full TDDFT formalism instead of TDA. Efficiency is demonstrated for a comparably large system, Ir(ppy){sub 3} (61 atoms, 1501 basis functions, lowest 10 excited states), which is a prototype molecule for organic light-emitting diodes, due to its spin-forbidden triplet-singlet transition.

  7. Study of multiband disordered systems using the typical medium dynamical cluster approximation

    DOE PAGES [OSTI]

    Zhang, Yi; Terletska, Hanna; Moore, C.; Ekuma, Chinedu; Tam, Ka-Ming; Berlijn, Tom; Ku, Wei; Moreno, Juana; Jarrell, Mark

    2015-11-06

    We generalize the typical medium dynamical cluster approximation to multiband disordered systems. Using our extended formalism, we perform a systematic study of the nonlocal correlation effects induced by disorder on the density of states and the mobility edge of the three-dimensional two-band Anderson model. We include interband and intraband hopping and an intraband disorder potential. Our results are consistent with those obtained by the transfer matrix and the kernel polynomial methods. We also apply the method to KxFe2-ySe2 with Fe vacancies. Despite the strong vacancy disorder and anisotropy, we find the material is not an Anderson insulator. Moreover our resultsmore » demonstrate the application of the typical medium dynamical cluster approximation method to study Anderson localization in real materials.« less

  8. Double-hybrid density-functional theory with meta-generalized-gradient approximations

    SciTech Connect

    Souvi, Sidi M. O. Sharkas, Kamal; Toulouse, Julien; CNRS, UMR 7616, Laboratoire de Chimie Thorique, F-75005 Paris

    2014-02-28

    We extend the previously proposed one-parameter double-hybrid density-functional theory [K. Sharkas, J. Toulouse, and A. Savin, J. Chem. Phys. 134, 064113 (2011)] to meta-generalized-gradient-approximation (meta-GGA) exchange-correlation density functionals. We construct several variants of one-parameter double-hybrid approximations using the Tao-Perdew-Staroverov-Scuseria (TPSS) meta-GGA functional and test them on test sets of atomization energies and reaction barrier heights. The most accurate variant uses the uniform coordinate scaling of the density and of the kinetic energy density in the correlation functional, and improves over both standard Kohn-Sham TPSS and second-order Mller-Plesset calculations.

  9. Exchange-correlation energy from pairing matrix fluctuation and the particle-particle random phase approximation

    SciTech Connect

    Aggelen, Helen van; Department of Chemistry, Duke University, Durham, North Carolina 27708 ; Yang, Yang; Yang, Weitao

    2014-05-14

    Despite their unmatched success for many applications, commonly used local, semi-local, and hybrid density functionals still face challenges when it comes to describing long-range interactions, static correlation, and electron delocalization. Density functionals of both the occupied and virtual orbitals are able to address these problems. The particle-hole (ph-) Random Phase Approximation (RPA), a functional of occupied and virtual orbitals, has recently known a revival within the density functional theory community. Following up on an idea introduced in our recent communication [H. van Aggelen, Y. Yang, and W. Yang, Phys. Rev. A 88, 030501 (2013)], we formulate more general adiabatic connections for the correlation energy in terms of pairing matrix fluctuations described by the particle-particle (pp-) propagator. With numerical examples of the pp-RPA, the lowest-order approximation to the pp-propagator, we illustrate the potential of density functional approximations based on pairing matrix fluctuations. The pp-RPA is size-extensive, self-interaction free, fully anti-symmetric, describes the strong static correlation limit in H{sub 2}, and eliminates delocalization errors in H{sub 2}{sup +} and other single-bond systems. It gives surprisingly good non-bonded interaction energies competitive with the ph-RPA with the correct R{sup ?6} asymptotic decay as a function of the separation R, which we argue is mainly attributable to its correct second-order energy term. While the pp-RPA tends to underestimate absolute correlation energies, it gives good relative energies: much better atomization energies than the ph-RPA, as it has no tendency to underbind, and reaction energies of similar quality. The adiabatic connection in terms of pairing matrix fluctuation paves the way for promising new density functional approximations.

  10. Investigating stability using nonlinear quasihomogeneous approximation to differential equations with impulsive action

    SciTech Connect

    Dvirny, A. I.; Slyn'ko, V. I. E-mail: vitstab@ukr.net

    2014-06-01

    Inverse theorems to Lyapunov's direct method are established for quasihomogeneous systems of differential equations with impulsive action. Conditions for the existence of Lyapunov functions satisfying typical bounds for quasihomogeneous functions are obtained. Using these results, we establish conditions for an equilibrium of a nonlinear system with impulsive action to be stable, using the properties of a quasihomogeneous approximation to the system. The results are illustrated by an example of a large-scale system with homogeneous subsystems. Bibliography: 30 titles. (paper)

  11. Development of Versatile Compressor Modeling using Approximation Techniques for Alternative Refrigerants Evaluation

    SciTech Connect

    Abdelaziz, Omar; Shrestha, Som S

    2014-01-01

    Refrigerants are the life-blood of vapor compression systems that are widely used in Heating, Ventilation, Air-Conditioning, and Refrigeration (HVAC&R) applications. The HVAC&R community is currently transitioning from main-stream refrigerants that have high Global Warming Potential (GWP) to alternative lower-GWP refrigerants. During this transition, it is important to account for the life cycle climate performance of alternative refrigerants since their performance will be different than that of higher-GWP refrigerants. This requires the evaluation of the system performance with the new refrigerants. Unfortunately, it is extremely difficult to predict the realistic performance of new alternative refrigerants without experimental validation. One of the main challenges in this regard is modeling the compressor performance with high fidelity due to the complex interaction of operating parameters, geometry, boundary conditions, and fluid properties. High fidelity compressor models are computationally expensive and require significant pre-processing to evaluate the performance of alternative refrigerants. This paper presents a new approach to modeling compressor performance when alternative refrigerants are used. The new modeling concept relies on using existing compressor performance to create an approximate model that captures the dependence of compressor performance on key operating parameters and fluid properties. The model can be built using a myriad of approximation techniques. This paper focuses on Kriging-based techniques to develop higher fidelity approximate compressor models. Baseline and at least one alternative refrigerant performance data are used to build the model. The model accuracy was evaluated by comparing the model results with compressor performance data using other refrigerants. Preliminary results show that the approximate model can predict the compressor mass flow rate and power consumption within 5%.

  12. Accuracy considerations for Chebyshev rational approximation method (CRAM) in Burnup calculations

    SciTech Connect

    Pusa, M.

    2013-07-01

    The burnup equations can in principle be solved by computing the exponential of the burnup matrix. However, due to the difficult numerical characteristics of burnup matrices, the problem is extremely stiff and the matrix exponential solution has previously been considered infeasible for an entire burnup system containing over a thousand nuclides. It was recently discovered by the author that the eigenvalues of burnup matrices are generally located near the negative real axis, which prompted introducing the Chebyshev rational approximation method (CRAM) for solving the burnup equations. CRAM can be characterized as the best rational approximation on the negative real axis and it has been shown to be capable of simultaneously solving an entire burnup system both accurately and efficiently. In this paper, the accuracy of CRAM is further studied in the context of burnup equations. The approximation error is analyzed based on the eigenvalue decomposition of the burnup matrix. It is deduced that the relative accuracy of CRAM may be compromised if a nuclide concentration diminishes significantly during the considered time step. Numerical results are presented for two test cases, the first one representing a small burnup system with 36 nuclides and the second one a full a decay system with 1531 nuclides. (authors)

  13. Quantum correlations of helicity entangled states in non-inertial frames beyond single mode approximation

    SciTech Connect

    Harsij, Zeynab Mirza, Behrouz

    2014-12-15

    A helicity entangled tripartite state is considered in which the degree of entanglement is preserved in non-inertial frames. It is shown that Quantum Entanglement remains observer independent. As another measure of quantum correlation, Quantum Discord has been investigated. It is explicitly shown that acceleration has no effect on the degree of quantum correlation for the bipartite and tripartite helicity entangled states. Geometric Quantum Discord as a HilbertSchmidt distance is computed for helicity entangled states. It is shown that living in non-inertial frames does not make any influence on this distance, either. In addition, the analysis has been extended beyond single mode approximation to show that acceleration does not have any impact on the quantum features in the limit beyond the single mode. As an interesting result, while the density matrix depends on the right and left Unruh modes, the Negativity as a measure of Quantum Entanglement remains constant. Also, Quantum Discord does not change beyond single mode approximation. - Highlights: The helicity entangled states here are observer independent in non-inertial frames. It is explicitly shown that Quantum Discord for these states is observer independent. Geometric Quantum Discord is also not affected by acceleration increase. Extending to beyond single mode does not change the degree of entanglement. Beyond single mode approximation the degree of Quantum Discord is also preserved.

  14. Simulated Stochastic Approximation Annealing for Global Optimization with a Square-Root Cooling Schedule

    SciTech Connect

    Liang, Faming; Cheng, Yichen; Lin, Guang

    2014-06-13

    Simulated annealing has been widely used in the solution of optimization problems. As known by many researchers, the global optima cannot be guaranteed to be located by simulated annealing unless a logarithmic cooling schedule is used. However, the logarithmic cooling schedule is so slow that no one can afford to have such a long CPU time. This paper proposes a new stochastic optimization algorithm, the so-called simulated stochastic approximation annealing algorithm, which is a combination of simulated annealing and the stochastic approximation Monte Carlo algorithm. Under the framework of stochastic approximation Markov chain Monte Carlo, it is shown that the new algorithm can work with a cooling schedule in which the temperature can decrease much faster than in the logarithmic cooling schedule, e.g., a square-root cooling schedule, while guaranteeing the global optima to be reached when the temperature tends to zero. The new algorithm has been tested on a few benchmark optimization problems, including feed-forward neural network training and protein-folding. The numerical results indicate that the new algorithm can significantly outperform simulated annealing and other competitors.

  15. Paperclips Supply Store Forms | Department of Energy

    Energy.gov [DOE] (indexed site)

    Catalog Order Form for Non-Stocked or Specialty Items For any non-stocked or special item that needs to be ordered, the Catalog Order Form (pdf) needs to be filled in. All supplies...

  16. Form W-8 BEN (Rev. February 2014)

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

    W-8BEN (Rev. February 2014) Department of the Treasury Internal Revenue Service ... Entities must use Form W-8BEN-E. Information about Form W-8BEN and its separate ...

  17. Sources: Energy Information Administration, Form EIA-182,

    Energy Information Administration (EIA) (indexed site)

    "Domestic Crude Oil First Purchase Report"; Form EIA-856, "Monthly Foreign Crude Oil Acquisition Report"; and Form EIA-14, "Refiners' Monthly Cost Report." 0 6 12 18 24 30 J F M A...

  18. Texas GLO Coastal Forms | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Coastal Forms Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- OtherOther: Texas GLO Coastal FormsLegal Abstract The Texas General Land Office...

  19. TCEQ Water Forms | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Water Forms Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- OtherOther: TCEQ Water FormsLegal Abstract The Texas Commission on Environmental...

  20. ADEQ Water Quality Forms | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    ADEQ Water Quality Forms Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- OtherOther: ADEQ Water Quality FormsLegal Abstract The Arizona...

  1. ADNR Water Forms | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    ADNR Water Forms Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- OtherOther: ADNR Water FormsLegal Abstract The Alaska Department of Natural...

  2. 2011 Form EIA-63A Instructions

    Gasoline and Diesel Fuel Update

    U. S. DEPARTMENT OF ENERGY Form Approved U.S. ENERGY INFORMATION ADMINISTRATION OMB No. 1905-0196 Washington, DC 20585 Expires: 12312013 FORM EIA-63A ANNUAL SOLAR THERMAL ...

  3. Form:Buildings Publication | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    name already exists, you will be sent to a form to edit that page. Create or edit Retrieved from "http:en.openei.orgwindex.php?titleForm:BuildingsPublication&oldid270103...

  4. Form:Buildings Model | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    with that name already exists, you will be sent to a form to edit that page. Create or edit Retrieved from "http:en.openei.orgwindex.php?titleForm:BuildingsModel&oldid270041...

  5. CSLB ROW Forms | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    various forms and information related to surface Rights of Way on or across state trust lands. Published NA Year Signed or Took Effect 2014 Legal Citation CSLB ROW Forms DOI...

  6. Form 2D | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    D Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- Permit ApplicationPermit Application: Form 2DLegal Abstract Form 2D: Application for Permit to...

  7. Electric Submersible Pump | GE Global Research

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

    Detailed State Data Final annual data for 2015 Release Date: October 12, 2016 Next Release Date: October 2017 January 13, 2016 Revision/Corrections Annual data format 1990 - 2015 Net Generation by State by Type of Producer by Energy Source (EIA-906, EIA-920, and EIA-923)1 XLS 1990 - 2015 Fossil Fuel Consumption for Electricity Generation by Year, Industry Type and State (EIA-906, EIA-920, and EIA-923)2 XLS 1990 - 2014 Existing Nameplate and Net Summer Capacity by Energy Source, Producer Type and

  8. Fermilab at Work | Manuals and Forms

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

    Policy Guide Engineering Manual Engineering Manual Engineering Manual Appendices Risk Assessment Spreadsheet Engineering Manual Rollout Teamcenter Rollout Facilities Request Form...

  9. CONFIGURATION CHANGE PROPOSAL FORM | Department of Energy

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

    CONFIGURATION CHANGE PROPOSAL FORM CONFIGURATION CHANGE PROPOSAL FORM This form is used for sharing information on Domain Name Server (DNS) changes, new requirements, modifications or enhancements within the DOE Headquarters Programmatic and Office Management Areas. This form is used for sharing information on Domain Name Server (DNS) changes, new requirements, modifications or enhancements within the DOE Headquarters Programmatic and Office Management Areas. (40.5 KB) More Documents &

  10. SWS Variance Request Form | Department of Energy

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

    SWS Variance Request Form SWS Variance Request Form As Grantees update and revise their field standards to align with the SWS, they may discover certain specifications that cannot be implemented precisely as described in the relevant SWS. In such cases, Grantees may request a variance from the relevant SWS. To be granted a variance, the attached request form must be completed in full. Complete one form for each variance requested, which may on occasion include more than one SWS. For example,

  11. EEO Intake Form | Department of Energy

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

    EEO Intake Form EEO Intake Form Download and fill out this form to start the process for Equal Employment Opportunity complaints at the Department of Energy. For more information about the EEO process, visit this site. To get in touch with our Office of Civil Rights, call (202) 586-2218. DOE EEO Intake Form 2016 (395.3 KB) More Documents & Publications Equal Employment Opportunity Intake Process DOE F 1600.2 DOE F 1600.1

  12. CAIRS Registration Form | Department of Energy

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

    More Documents & Publications ORPS User Registration Form Headquarters Facilities Master Security Plan - Chapter 13, Controlled Unclassified Information Fire Protection System ...

  13. General rotating quantum vortex filaments in the low-temperature Svistunov model of the local induction approximation

    SciTech Connect

    Van Gorder, Robert A.

    2014-06-15

    In his study of superfluid turbulence in the low-temperature limit, Svistunov [Superfluid turbulence in the low-temperature limit, Phys. Rev. B 52, 3647 (1995)] derived a Hamiltonian equation for the self-induced motion of a vortex filament. Under the local induction approximation (LIA), the Svistunov formulation is equivalent to a nonlinear dispersive partial differential equation. In this paper, we consider a family of rotating vortex filament solutions for the LIA reduction of the Svistunov formulation, which we refer to as the 2D LIA (since it permits a potential formulation in terms of two of the three Cartesian coordinates). This class of solutions holds the well-known Hasimoto-type planar vortex filament [H. Hasimoto, Motion of a vortex filament and its relation to elastica, J. Phys. Soc. Jpn. 31, 293 (1971)] as one reduction and helical solutions as another. More generally, we obtain solutions which are periodic in the space variable. A systematic analytical study of the behavior of such solutions is carried out. In the case where vortex filaments have small deviations from the axis of rotation, closed analytical forms of the filament solutions are given. A variety of numerical simulations are provided to demonstrate the wide range of rotating filament behaviors possible. Doing so, we are able to determine a number of vortex filament structures not previously studied. We find that the solution structure progresses from planar to helical, and then to more intricate and complex filament structures, possibly indicating the onset of superfluid turbulence.

  14. Opinion of Counsel Form | Department of Energy

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

    Opinion of Counsel Form Opinion of Counsel Form For use with natural gas authorization filings Opinion of Counsel Form - Natural Gas Regulation (7.1 KB) More Documents & Publications Listing of DOE/FE Authorizations Issued in 2013 Listing of DOE/FE Authorizations Issued in 2014 Clean Energy - FE Dkt No. 14-54-LNG (FTA)

  15. Microsoft Word - EMBOSSING REQUEST FORM4611.doc

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

    EMBOSSING REQUEST FORM Please read attached sheet before completing this form Personal Contact Information Date: ____/____/_____ Name: ___________________________ Phone #: _________________ Department: __________ PRN or Acct #: _____________________ E-mail: _____________________________ Technical Information Please use separate forms for requests involving different mold inserts or embossing materials. Mold Insert Name: ___________________________________________________________ Mold Insert

  16. Delta and Omega electromagnetic form factors in a Dyson-Schwinger/Bethe-Salpeter approach

    SciTech Connect

    Diana Nicmorus, Gernot Eichmann, Reinhard Alkofer

    2010-12-01

    We investigate the electromagnetic form factors of the Delta and the Omega baryons within the Poincare-covariant framework of Dyson-Schwinger and Bethe-Salpeter equations. The three-quark core contributions of the form factors are evaluated by employing a quark-diquark approximation. We use a consistent setup for the quark-gluon dressing, the quark-quark bound-state kernel and the quark-photon interaction. Our predictions for the multipole form factors are compatible with available experimental data and quark-model estimates. The current-quark mass evolution of the static electromagnetic properties agrees with results provided by lattice calculations.

  17. Accurate gradient approximation for complex interface problems in 3D by an improved coupling interface method

    SciTech Connect

    Shu, Yu-Chen, E-mail: ycshu@mail.ncku.edu.tw [Department of Mathematics, National Cheng Kung University, Tainan 701, Taiwan (China); Mathematics Division, National Center for Theoretical Sciences (South), Tainan 701, Taiwan (China); Chern, I-Liang, E-mail: chern@math.ntu.edu.tw [Department of Applied Mathematics, National Chiao Tung University, Hsin Chu 300, Taiwan (China); Department of Mathematics, National Taiwan University, Taipei 106, Taiwan (China); Mathematics Division, National Center for Theoretical Sciences (Taipei Office), Taipei 106, Taiwan (China); Chang, Chien C., E-mail: mechang@iam.ntu.edu.tw [Institute of Applied Mechanics, National Taiwan University, Taipei 106, Taiwan (China); Department of Mathematics, National Taiwan University, Taipei 106, Taiwan (China)

    2014-10-15

    Most elliptic interface solvers become complicated for complex interface problems at those exceptional points where there are not enough neighboring interior points for high order interpolation. Such complication increases especially in three dimensions. Usually, the solvers are thus reduced to low order accuracy. In this paper, we classify these exceptional points and propose two recipes to maintain order of accuracy there, aiming at improving the previous coupling interface method [26]. Yet the idea is also applicable to other interface solvers. The main idea is to have at least first order approximations for second order derivatives at those exceptional points. Recipe 1 is to use the finite difference approximation for the second order derivatives at a nearby interior grid point, whenever this is possible. Recipe 2 is to flip domain signatures and introduce a ghost state so that a second-order method can be applied. This ghost state is a smooth extension of the solution at the exceptional point from the other side of the interface. The original state is recovered by a post-processing using nearby states and jump conditions. The choice of recipes is determined by a classification scheme of the exceptional points. The method renders the solution and its gradient uniformly second-order accurate in the entire computed domain. Numerical examples are provided to illustrate the second order accuracy of the presently proposed method in approximating the gradients of the original states for some complex interfaces which we had tested previous in two and three dimensions, and a real molecule ( (1D63)) which is double-helix shape and composed of hundreds of atoms.

  18. DYNAMICAL SPIN SUSCEPTIBILITY IN THE TD-LDA AND QSGW APPROXIMATIONS

    SciTech Connect

    SCHILFGAARDE, MARK VAN; KOTANI, TAKAO

    2012-10-15

    Abstract. This project was aimed at building the transverse dynamical spin susceptibility with the TD-LDA and the recently-developed Quasparticle Self-Consisent Approximations, which determines an optimum quasiparticle picture in a self-consistent manner within the GW approximation. Our main results were published into two papers, (J. Phys. Cond. Matt. 20, 95214 (2008), and Phys. Rev. B83, 060404(R) (2011). In the first paper we present spin wave dispersions for MnO, NiO, and #11;-MnAs based on quasiparticle self-consistent GW approximation (QSGW). For MnO and NiO, QSGW results are in rather good agreement with experiments, in contrast to the LDA and LDA+U descriptions. For #11;-MnAs, we find a collinear ferromagnetic ground state in QSGW, while this phase is unstable in the LDA. In the second, we apply TD-LDA to the CaFeAs2 â?? the first attempt the first ab initio calculation of dynamical susceptibililty in a system with complex electronic structure Magnetic excitations in the striped phase of CaFe2As2 are studied as a function of local moment amplitude. We find a new kind of excitation: sharp resonances of Stoner-like (itinerant) excitations at energies comparable to the N?´eel temperature, originating largely from a narrow band of Fe d states near the Fermi level, and coexisting with more conventional (localized) spin waves. Both kinds of excitations can show multiple branches, highlighting the inadequacy of a description based on a localized spin model.

  19. An approximate framework for quantum transport calculation with model order reduction

    SciTech Connect

    Chen, Quan; Li, Jun; Yam, Chiyung; Zhang, Yu; Wong, Ngai; Chen, Guanhua

    2015-04-01

    A new approximate computational framework is proposed for computing the non-equilibrium charge density in the context of the non-equilibrium Green's function (NEGF) method for quantum mechanical transport problems. The framework consists of a new formulation, called the X-formulation, for single-energy density calculation based on the solution of sparse linear systems, and a projection-based nonlinear model order reduction (MOR) approach to address the large number of energy points required for large applied biases. The advantages of the new methods are confirmed by numerical experiments.

  20. p-barp-Annihilation processes in the tree approximation of SU(3) chiral effective theory

    SciTech Connect

    Tarasov, V. E.; Kudryavtsev, A. E. Romanov, A. I.; Weinberg, V. M.

    2012-12-15

    The p-barp-annihilation reactions p-barp {yields} {eta}{eta} {eta} and p-barp {yields} {eta}KK-bar at rest are considered in the tree approximation in the framework of SU(3) chiral effective theory at leading order. The calculated branchings are compared with the data. The results for neutral ({eta}{eta}{eta}, K{sup 0}K-bar{sup 0}{sub {eta}}) and charged (K{sup +}K{sup -}{sub {eta}}) channels are essentially different.

  1. Model-potential Oppenheimer-Brinkman-Kramers approximation for K -shell electron capture in asymmetric collisions

    SciTech Connect

    Kuang, Y.R. )

    1991-08-01

    A theoretical method to calculate the {ital K}-shell electron-capture cross section in asymmetric collisions is developed. The correlation effect between the active and the passive electrons and the screening effect in the wave function of the active electron are all considered. Under the Oppenheimer-Brinkman-Kramers approximation, an analytical expression for the total capture cross section is obtained. The calculated results for H{sup +}--carbon, nitrogen, oxygen, neon, argon and He{sup 2+}-neon collisions, at the intermediate-energy region, show very good agreement with available experimental findings. A comparison with other theoretical results is given.

  2. Finite-dimensional approximations of the resolvent of an infinite band matrix and continued fractions

    SciTech Connect

    Barrios, Dolores; Lopez, Guillermo L; Martinez-Finkelshtein, A; Torrano, Emilio

    1999-04-30

    The approximability of the resolvent of an operator induced by a band matrix by the resolvents of its finite-dimensional sections is studied. For bounded perturbations of self-adjoint matrices a positive result is obtained. The convergence domain of the sequence of resolvents can be described in this case in terms of matrices involved in the representation. This result is applied to tridiagonal complex matrices to establish conditions for the convergence of Chebyshev continued fractions on sets in the complex domain. In the particular case of compact perturbations this result is improved and a connection between the poles of the limit function and the eigenvalues of the tridiagonal matrix is established.

  3. Molecular Solid EOS based on Quasi-Harmonic Oscillator approximation for phonons

    SciTech Connect

    Menikoff, Ralph

    2014-09-02

    A complete equation of state (EOS) for a molecular solid is derived utilizing a Helmholtz free energy. Assuming that the solid is nonconducting, phonon excitations dominate the specific heat. Phonons are approximated as independent quasi-harmonic oscillators with vibrational frequencies depending on the specific volume. The model is suitable for calibrating an EOS based on isothermal compression data and infrared/Raman spectroscopy data from high pressure measurements utilizing a diamond anvil cell. In contrast to a Mie-Gr ̈uneisen EOS developed for an atomic solid, the specific heat and Gr ̈uneisen coefficient depend on both density and temperature.

  4. Proton-Nucleus Scattering Approximations and Implications for LHC Crystal Collimation

    SciTech Connect

    Noble, Robert; ,

    2010-06-07

    In particle accelerators, scattered protons with energies close to the incident particles may travel considerable distances with the beam before impacting on accelerator components downstream. To analyze such problems, angular deflection and energy loss of scattered particles are the main quantities to be simulated since these lead to changes in the beam's phase space distribution and particle loss. Simple approximations for nuclear scattering processes causing limited energy loss to high-energy protons traversing matter are developed which are suitable for rapid estimates and reduced-description Monte Carlo simulations. The implications for proton loss in the Large Hadron Collider due to nuclear scattering on collimation crystals are discussed.

  5. Comparison of binary collision approximation and molecular dynamics for displacement cascades in GaAs.

    SciTech Connect

    Foiles, Stephen Martin

    2011-10-01

    The predictions of binary collision approximation (BCA) and molecular dynamics (MD) simulations of displacement cascades in GaAs are compared. There are three issues addressed in this work. The first is the optimal choice of the effective displacement threshold to use in the BCA calculations to obtain the best agreement with MD results. Second, the spatial correlations of point defects are compared. This is related to the level of clustering that occurs for different types of radiation. Finally, the size and structure of amorphous zones seen in the MD simulations is summarized. BCA simulations are not able to predict the formation of amorphous material.

  6. Encapsulated fuel unit and method of forming same

    DOEpatents

    Groh, Edward F.; Cassidy, Dale A.; Lewandowski, Edward F.

    1985-01-01

    This invention teaches an encapsulated fuel unit for a nuclear reactor, such as for an enriched uranium fuel plate of thin cross section of the order of 1/64 or 1/8 of an inch and otherwise of rectangular shape 1-2 inches wide and 2-4 inches long. The case is formed from (a) two similar channel-shaped half sections extended lengthwise of the elongated plate and having side edges butted and welded together to define an open ended tube-like structure and from (b) porous end caps welded across the open ends of the tube-like structure. The half sections are preferably of stainless steel between 0.002 and 0.01 of an inch thick, and are beam welded together over and within machined and hardened tool steel chill blocks. The porous end caps preferably are of T-316-L stainless steel having pores of approximately 3-10 microns size.

  7. Improved encapsulated fuel unit and method of forming same

    DOEpatents

    Groh, E.F.; Cassidy, D.A.; Lewandowski, E.

    1982-09-07

    This invention teaches an encapsulated fuel unit for a nuclear reactor, such as for an enriched uranium fuel plate of thin cross section of the order of 1/64 or 1/8 of an inch and otherwise of rectangular shape 1 to 2 inches wide and 2 to 4 inches long. The case is formed from (a) two similar channel-shaped half sections extended lengthwise of the elongated plate and having side edges butted and welded together to define an open ended tube-like structure and from (b) porous end caps welded across the open ends of the tube-like structure. The half sections are preferably of stainless steel between 0.002 and 0.01 of an inch thick, and are beam welded together over and within machined and hardened tool steel chill blocks. The porous end caps preferably are of T-316-L stainless steel having pores of approximately 3 to 10 microns size.

  8. Irradiation creep of various ferritic alloys irradiated {approximately}400 C in the PFR and FFTF reactors

    SciTech Connect

    Toloczko, M.B.; Garner, F.A.; Eiholzer, C.R.

    1998-03-01

    Three ferritic alloys were irradiated in two fast reactors to doses of 50 dpa or more at temperatures near 400 C. One martensitic alloy, HT9, was irradiated in both the FFTF and PFR reactors. PFR is the Prototype Fast Reactor in Dourneay, Scotland, and FFTF is the Fast Flux Test Facility in Richland, WA. D57 is a developmental alloy that was irradiated in PFR only, and MA957 is a Y{sub 2}O{sub 3} dispersion-hardened ferritic alloy that was irradiated only in FFTF. These alloys exhibited little or no void swelling at {approximately}400 C. Depending on the alloy starting condition, these steels develop a variety of non-creep strains early in the irradiation that are associated with phase changes. Each of these alloys creeps at a rate that is significantly lower than that of austenitic steels irradiated in the same experiments. The creep compliance for ferritic alloys in general appears to be {approximately}0.5 {times} 10{sup {minus}6} MPa{sup {minus}1} dpa{sup {minus}1}, independent of both composition and starting state. The addition of Y{sub 2}O{sub 3} as a dispersoid does not appear to change the creep behavior.

  9. On the Validity of Certain Approximations Used in the Modeling of Nuclear EMP

    DOE PAGES [OSTI]

    Farmer, William A.; Cohen, Bruce I.; Eng, Chester D.

    2016-04-01

    The legacy codes developed for the modeling of EMP, multiple scattering of Compton electrons has typically been modeled by the obliquity factor. A recent publication has examined this approximation in the context of the generated Compton current [W. A. Farmer and A. Friedman, IEEE Trans. Nucl. Sc. 62, 1695 (2015)]. Here, this previous analysis is extended to include the generation of the electromagnetic fields. Obliquity factor predictions are compared with Monte-Carlo models. In using a Monte-Carlo description of scattering, two distributions of scattering angles are considered: Gaussian and a Gaussian with a single-scattering tail. Additionally, legacy codes also neglect themore » radial derivative of the backward-traveling wave for computational efficiency. The neglect of this derivative improperly treats the backward-traveling wave. Moreover, these approximations are examined in the context of a high-altitude burst, and it is shown that in comparison to more complete models, the discrepancy between field amplitudes is roughly two to three percent and between rise-times, 10%. Finally, it is concluded that the biggest factor in determining the rise time of the signal is not the dynamics of the Compton current, but is instead the conductivity.« less

  10. Thermally-assisted-occupation density functional theory with generalized-gradient approximations

    SciTech Connect

    Chai, Jeng-Da

    2014-05-14

    We extend the recently proposed thermally-assisted-occupation density functional theory (TAO-DFT) [J.-D. Chai, J. Chem. Phys. 136, 154104 (2012)] to generalized-gradient approximation (GGA) exchange-correlation density functionals. Relative to our previous TAO-LDA (i.e., the local density approximation to TAO-DFT), the resulting TAO-GGAs are significantly superior for a wide range of applications, such as thermochemistry, kinetics, and reaction energies. For noncovalent interactions, TAO-GGAs with empirical dispersion corrections are shown to yield excellent performance. Due to their computational efficiency for systems with strong static correlation effects, TAO-LDA and TAO-GGAs are applied to study the electronic properties (e.g., the singlet-triplet energy gaps, vertical ionization potentials, vertical electron affinities, fundamental gaps, and symmetrized von Neumann entropy) of acenes with different number of linearly fused benzene rings (up to 100), which is very challenging for conventional electronic structure methods. The ground states of acenes are shown to be singlets for all the chain lengths studied here. With the increase of acene length, the singlet-triplet energy gaps, vertical ionization potentials, and fundamental gaps decrease monotonically, while the vertical electron affinities and symmetrized von Neumann entropy (i.e., a measure of polyradical character) increase monotonically.

  11. Approximation of functions of variable smoothness by Fourier-Legendre sums

    SciTech Connect

    Sharapudinov, I I

    2000-06-30

    Assume that 0<{mu}{<=}1, and let r{>=}1 be an integer. Let {delta}={l_brace}a{sub 1},...,a{sub l}{r_brace}, where the a{sub i} are points in the interval (-1,1). The classes S{sup r}H{sup {mu}}{sub {delta}} and S{sup r}H{sup {mu}}{sub {delta}}(B) are introduced. These consist of functions with absolutely continuous (r-1)th derivative on [-1,1] such that their rth and (r+1)th derivatives satisfy certain conditions outside the set {delta}. It is proved that for 0<{mu}<1 the Fourier-Legendre sums realize the best approximation in the classes S{sup r}H{sup {mu}}{sub {delta}}(B). Using the Fourier-Legendre expansions, polynomials Y{sub n+2r} of order n+2r are constructed that possess the following property: for 0<{mu}<1 the {nu}th derivative of the polynomial Y{sub n+2r} approximates f{sup ({nu})}(x) (f element of S{sup r}H{sup {mu}}{sub {delta}}) on [-1,1] to within O(n{sup {nu}}{sup +1-r-{mu}}), and the accuracy is of order O(n{sup {nu}}{sup -r-{mu}}) outside {delta}.

  12. Multilayer shallow shelf approximation: Minimisation formulation, finite element solvers and applications

    SciTech Connect

    Jouvet, Guillaume

    2015-04-15

    In this paper, a multilayer generalisation of the Shallow Shelf Approximation (SSA) is considered. In this recent hybrid ice flow model, the ice thickness is divided into thin layers, which can spread out, contract and slide over each other in such a way that the velocity profile is layer-wise constant. Like the SSA (1-layer model), the multilayer model can be reformulated as a minimisation problem. However, unlike the SSA, the functional to be minimised involves a new penalisation term for the interlayer jumps of the velocity, which represents the vertical shear stresses induced by interlayer sliding. Taking advantage of this reformulation, numerical solvers developed for the SSA can be naturally extended layer-wise or column-wise. Numerical results show that the column-wise extension of a Newton multigrid solver proves to be robust in the sense that its convergence is barely influenced by the number of layers and the type of ice flow. In addition, the multilayer formulation appears to be naturally better conditioned than the one of the first-order approximation to face the anisotropic conditions of the sliding-dominant ice flow of ISMIP-HOM experiments.

  13. Exact and approximate fermion Green`s functions in QED and QCD

    SciTech Connect

    Fried, H.M. [Physics Department, Brown University, Providence, Rhode Island 02912 (United States)] [Physics Department, Brown University, Providence, Rhode Island 02912 (United States); Gabellini, Y. [Institut Non-Lineaire de Nice, 1361, Route des Lucioles, 06560 Valbonne (France)] [Institut Non-Lineaire de Nice, 1361, Route des Lucioles, 06560 Valbonne (France); McKellar, B.H.J. [School of Physics, University of Melbourne, Parkville, Victoria, 3052 (Australia)] [School of Physics, University of Melbourne, Parkville, Victoria, 3052 (Australia)

    1995-06-15

    That special variant of the Fradkin representation, previously defined for scalar Green`s functions {ital G}{sub {ital c}}({ital x},{ital y}{vert_bar}{ital A}) in an arbitrary potential {ital A}({ital z}), is here extended to the case of vector interactions and spinor Green`s functions of QED and QCD. An exact representation is given which may again be approximated by a finite number {ital N} of quadratures, with the order of magnitude of the errors generated specified in advance, and decreasing with increasing {ital N}. A feature appears for both exact and approximate {ital G}{sub {ital c}}[{ital A}]: the possibility of chaotic behavior of a function central to the representation, which in turn generates chaotic behavior in {ital G}{sub {ital c}}[{ital A}] for certain {ital A}({ital z}). An example is given to show how the general criterion specified here works for a known case of ``quantum chaos,`` in a potential theory context of first quantization. When the full, nonperturbative, radiative corrections of quantum field theory are included, such chaotic effects are removed.

  14. Assessment of approximate computational methods for conical intersections and branching plane vectors in organic molecules

    SciTech Connect

    Nikiforov, Alexander; Gamez, Jose A.; Thiel, Walter; Huix-Rotllant, Miquel; Filatov, Michael

    2014-09-28

    Quantum-chemical computational methods are benchmarked for their ability to describe conical intersections in a series of organic molecules and models of biological chromophores. Reference results for the geometries, relative energies, and branching planes of conical intersections are obtained using ab initio multireference configuration interaction with single and double excitations (MRCISD). They are compared with the results from more approximate methods, namely, the state-interaction state-averaged restricted ensemble-referenced Kohn-Sham method, spin-flip time-dependent density functional theory, and a semiempirical MRCISD approach using an orthogonalization-corrected model. It is demonstrated that these approximate methods reproduce the ab initio reference data very well, with root-mean-square deviations in the optimized geometries of the order of 0.1 or less and with reasonable agreement in the computed relative energies. A detailed analysis of the branching plane vectors shows that all currently applied methods yield similar nuclear displacements for escaping the strong non-adiabatic coupling region near the conical intersections. Our comparisons support the use of the tested quantum-chemical methods for modeling the photochemistry of large organic and biological systems.

  15. Characterization of the homogeneous tissue mixture approximation in breast imaging dosimetry

    SciTech Connect

    Sechopoulos, Ioannis; Bliznakova, Kristina; Qin Xulei; Fei Baowei; Feng, Steve Si Jia

    2012-08-15

    Purpose: To compare the estimate of normalized glandular dose in mammography and breast CT imaging obtained using the actual glandular tissue distribution in the breast to that obtained using the homogeneous tissue mixture approximation. Methods: Twenty volumetric images of patient breasts were acquired with a dedicated breast CT prototype system and the voxels in the breast CT images were automatically classified into skin, adipose, and glandular tissue. The breasts in the classified images underwent simulated mechanical compression to mimic the conditions present during mammographic acquisition. The compressed thickness for each breast was set to that achieved during each patient's last screening cranio-caudal (CC) acquisition. The volumetric glandular density of each breast was computed using both the compressed and uncompressed classified images, and additional images were created in which all voxels representing adipose and glandular tissue were replaced by a homogeneous mixture of these two tissues in a proportion corresponding to each breast's volumetric glandular density. All four breast images (compressed and uncompressed; heterogeneous and homogeneous tissue) were input into Monte Carlo simulations to estimate the normalized glandular dose during mammography (compressed breasts) and dedicated breast CT (uncompressed breasts). For the mammography simulations the x-ray spectra used was that used during each patient's last screening CC acquisition. For the breast CT simulations, two x-ray spectra were used, corresponding to the x-ray spectra with the lowest and highest energies currently being used in dedicated breast CT prototype systems under clinical investigation. The resulting normalized glandular dose for the heterogeneous and homogeneous versions of each breast for each modality was compared. Results: For mammography, the normalized glandular dose based on the homogeneous tissue approximation was, on average, 27% higher than that estimated using the

  16. Supplier Information Form Date: New Revision

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

    Supplier Information Form Date: New Revision Interested suppliers may complete and submit a Supplier Information Form to be included into LANS' vendor database. Suppliers are advised that there is no guarantee any solicitations or awards will be sent to Supplier by submitting a Supplier Information Form; however, in the event a solicitation is sent to the Supplier from an LANS Procurement Official, then a more formal quotation/offer may be required. Legal Business Name: D/B/A: (if applicable)

  17. Prescriptive Path compliance form | Department of Energy

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

    Prescriptive Path compliance form Prescriptive Path compliance form This Prescriptive Path compliance form shall be submitted to: doechallengehome@newportpartnersllc.com challenge_home_prescriptive_compliance_5-12.docx (20.98 KB) More Documents & Publications Version Tracking Document for DOE Challenge Homes, National Program Requirements (Rev. 03) DOE Zero Energy Ready Home National Program Requirements (Rev. 04) Washington DOE ZERH Program Requirements

  18. Microsoft Word - JLFTourForm.docx

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

    Jupiter Laser Facility Tour Request Form Host Name/Organization Extension Pager Administrative Support Email Extension Name of Group or Affiliation Tour Date Tour Time Number of Guests Tour Guide Special Needs Purpose of JLF Tour Name (one name per box) Company/Affiliation Country of Citizenship Signature Email completed form to JLF Administrator, Beth Mariotti at mariotti2@llnl.gov or fax to 925-422-6907. Approved by: Approved Date Approval Signature Submit Form to JLF Administrator

  19. Internship Form | Photosynthetic Antenna Research Center

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

    Internship Form Internship Form Students may arrange to receive credit and choose to receive points toward the PARC/I-CARES certificate through an unpaid internship or an internship with a modest stipend. Credit will not be awarded for paid internships. The student is expected to pursue studies or outside activities that are supervised by a faculty advisor or sponsor. Washington University schools and departments require their own separate internship forms to be completed by students seeking

  20. New Species of Cyanobacteria Forms Intracellular Carbonates

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

    rather than external precipitates, cells may not have been entombed within mineral shells, and so calcified cyanobacteria microfossils may not have formed, explaining the...

  1. Electronic Comment Form | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Office of General Counsel National Environmental Policy Act (NEPA) NEPA Reading Room Draft Site-Wide Environmental Impact Statement Nevada Electronic Comment Form...

  2. Course Form | Photosynthetic Antenna Research Center

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

    Course Form Course Form Students may take courses selected by PARC/I-CARES, and receive points toward the certificate. By signing this form, the student acknowledges that he/she has taken the course, and has earned the appropriate grade (i.e., B- or better in a 100-200 level course; C or better in a 300-400 level course). PARC/I-CARES will verify the student's coursework below with the registrar's office. Please complete and submit the following form for final approval. To identify your Course

  3. FAQs for Survey Form EIA-7A

    Gasoline and Diesel Fuel Update

    ... See the EIA Glossary for other coal definitions. How does EIA classify coal rank? Rank ... Form(Includes Instructions). Calculator Conversion calculator Who can I contact? Survey ...

  4. FAQs for Survey Form EIA-8A

    Gasoline and Diesel Fuel Update

    ... See the EIA Glossary for other coal definitions. How does EIA classify coal rank? Rank ... Form (Includes Instructions) Calculator Conversion calculator Who can I contact? Survey ...

  5. FAQs for Survey Form EIA-3

    Gasoline and Diesel Fuel Update

    ... See the EIA Glossary for coal definitions. How does EIA classify coal rank? Rank types ... Forms (Includes Instructions) Calculator Conversion calculator Who can I contact? Survey ...

  6. NDEP 401 WQ Forms | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Legal Document- OtherOther: NDEP 401 WQ FormsLegal Abstract The Nevada Division of Environmental Protection (NDEP) Bureau of Water Quality Planning (BWQP) provides links to...

  7. New Species of Cyanobacteria Forms Intracellular Carbonates

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

    New Species of Cyanobacteria Forms Intracellular Carbonates Print A new species of cyanobacteria-photosynthetic bacteria that occupy a wide array of habitats-was discovered in the...

  8. FAQs for Survey Form EIA-782A

    Gasoline and Diesel Fuel Update

    ... Information from this form is provided to the Defense Energy Support Center for market value analysis. For more information on data confidentiality, please see Section 8, ...

  9. FormCampusMachineShopsLabs.doc

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

    Highway Baton Rouge, Louisiana 70806 225-578-8887 225-578-6954 (Fax) Form for Campus Machine Shops and Labs Purchaser's Name Phone ...

  10. Employee Concerns Reporting Form | National Nuclear Security...

    National Nuclear Security Administration (NNSA)

    Management and Budget Human Resources Employee Concerns Program How Do You Report A Concern? Employee Concerns Reporting Form Employee Concerns Program Policy Statement DOE...

  11. Project Information Form for Usability Projects | Department...

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

    it to the Web Governance Team facilitator. File Project Information Form - Usability More Documents & Publications EERE's Usability and Analysis Techniques Guidebook Web Content ...

  12. Form:RRSection | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    source History View New Pages Recent Changes All Special Pages Semantic SearchQuerying Get Involved Help Apps Datasets Community Login | Sign Up Search Form Edit History...

  13. ODEQ - Construction Stormwater Application and Forms Manual ...

    OpenEI (Open Energy Information) [EERE & EIA]

    search OpenEI Reference LibraryAdd to library PermittingRegulatory Guidance - GuideHandbook: ODEQ - Construction Stormwater Application and Forms ManualPermitting...

  14. Soliton form factors from lattice simulations

    SciTech Connect

    Rajantie, Arttu; Weir, David J.

    2010-12-01

    The form factor provides a convenient way to describe properties of topological solitons in the full quantum theory, when semiclassical concepts are not applicable. It is demonstrated that the form factor can be calculated numerically using lattice Monte Carlo simulations. The approach is very general and can be applied to essentially any type of soliton. The technique is illustrated by calculating the kink form factor near the critical point in 1+1-dimensional scalar field theory. As expected from universality arguments, the result agrees with the exactly calculable scaling form factor of the two-dimensional Ising model.

  15. Form EIA-860 Instructions | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    plants with instructions on completing Form EIA-860. The U.S. Energy Information Administration (EIA) requires certain developers of electric generating plants (meeting defined...

  16. Miscellaneous Forms | Y-12 National Security Complex

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

    Miscellaneous Forms Miscellaneous Forms The following miscellaneous forms are provided in PDF fillable and/or Word format. Click the link in the "Format" column to open a copy of the form or right-click to download. Number* Title/Description Format** SF-85 Questionnaire for Non-Sensitive Positions PDF-fil UCN-13A Relocation Expense Report PDF-fil, PDF print UCN-15436 Gifts and Grants Request PDF-fil, Word UCN-16708 Request for Authorization to Ship SNM or Non-SNM Material (U) Word

  17. Form W-8BEN (Rev. February 2006)

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

    Form W-8BEN (Rev. February 2006) Department of the Treasury Internal Revenue Service Certificate of Foreign Status of Beneficial Owner for United States Tax Withholding See...

  18. LANSCE Training Office Process Improvement Form

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

    Training Office Process Improvement Form You recently contacted our training service department. We want to assure that you're satisfied with our service. Please complete this ...

  19. Process for forming transparent aerogel insulating arrays

    SciTech Connect

    Tewari, P.H.; Hunt, A.J.

    1986-09-09

    This patent describes a drying process for forming transparent aerogel insulating arrays of the type utilizing the steps of hydrolyzing and condensing alkoxides to form alcogels, and subsequently removing the alcohol therefrom to form aerogels, the improvement comprising the additional step, after alcogels are formed, of substituting a solvent having a critical temperature less than the critical temperature of the alcohol for the alcohol in the alcogels, and drying the resulting gels at a supercritical temperature for the solvent, to thereby provide a transparent aerogel array within a substantially reduced drying time period.

  20. ProForm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Spreadsheet ComplexityEase of Use: Simple Website: poet.lbl.govProform Cost: Free References: ProForm1 Related Tools General Equilibrium Modeling Package (GEMPACK)...

  1. New Employee Forms | The Ames Laboratory

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

    New Employee Forms All new employees and non-salaried associates must complete the New Employee Check In Packet to begin work at the Ames Laboratory. To expedite the check in process, you may print off the forms below and bring the completed forms to the Human Resources Office on your first day of work. New employees or returning employees (returning to work after a break in pay) will need to complete the ISU Payroll Packet. The Form I-9, Federal Work Authorization, must be completed on or

  2. Microsoft Word - ProjectProposalForm.dotx

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

    If yes, who? Please attach a list of collaborators and students, if any, from whom we can expect exposure request forms for this...

  3. Better Buildings Residential Network Membership Form | Department...

    Energy.gov [DOE] (indexed site)

    of Energy's Better Buildings Residential Network. BBRN Membership Form (138.55 KB) More Documents & Publications Better Buildings Residential Network Orientation Fact Sheet: ...

  4. Secondary Waste Forms and Technetium Management

    Office of Environmental Management (EM)

    Secondary Waste Forms and Technetium Management Joseph H. Westsik, Jr. Pacific Northwest ... liquid effluents under the Dangerous Waste Permit for disposal at the Integrated ...

  5. Comparative repository performance of plutonium forms - initial...

    Office of Scientific and Technical Information (OSTI)

    Title: Comparative repository performance of plutonium forms - initial studies The disposition of excess weapons plutonium may result in high-level radioactive waste streams ...

  6. Form 2E | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Application for Facilities that do not Discharge Process Wastewaters, current through August 14, 2014. Published NA Year Signed or Took Effect 2014 Legal Citation Form 2E:...

  7. Method for hot press forming articles

    DOEpatents

    Baker, Robert R.; Hartsock, Dale L.

    1982-01-01

    This disclosure relates to an improved method for achieving the best bond strength and for minimizing distortion and cracking of hot pressed articles. In particular, in a method for hot press forming both an outer facing circumferential surface of and an inner portion of a hub, and of bonding that so-formed outer facing circumferential surface to an inner facing circumferential surface of a pre-formed ring thereby to form an article, the following improvement is made. Normally, in this method, the outside ring is restrained by a restraining sleeve of ring-shaped cross-section having an inside diameter. A die member, used to hot press form the hub, is so-formed as to have an outside diameter sized to engage the inside diameter of the restraining sleeve in a manner permitting relative movement therebetween. The improved method is one in which several pairs of matched restraining sleeve and die member are formed with each matched pair having a predetermined diameter. The predetermined diameter of each matched pair is different from another matched pair by stepped increments. The largest inside diameter of a restraining sleeve is equal to the diameter of the outer facing circumferential surface of the hub. Each pair of the matched restraining sleeve and die member is used to form an article in which an inside hub is bonded to an outside ring. The several samples so-formed are evaluated to determine which sample has the best bond formed between the hub and the ring with the least or no cracking or distortion in the ring portion of the article. Thereafter, the matched restraining sleeve and die member which form the article having the best bonding characteristics and least distortion cracking is then used for repeated formations of articles.

  8. Deformation and Forming of Joined Materials

    SciTech Connect

    Carsley, John; Hovanski, Yuri; Clarke, Kester D.; Krajewski, Paul E.

    2014-09-23

    Introductory article to a set of invited papers from the TMS committee on shaping and forming. This paper introduces a set of papers that were prepared to discussing the deformation and forming of joined materials, and to announce an upcoming symposium at the 2015 MS&T meeting in Columbus Ohio.

  9. ACOUSTIC FORMING FOR ENHANCED DEWATERING AND FORMATION

    SciTech Connect

    Cyrus K Aidun

    2007-11-30

    The next generation of forming elements based on acoustic excitation to increase drainage and enhances formation both with on-line control and profiling capabilities has been investigated in this project. The system can be designed and optimized based on the fundamental experimental and computational analysis and investigation of acoustic waves in a fiber suspension flow and interaction with the forming wire.

  10. Methods for forming long subsurface heaters

    DOEpatents

    Kim, Dong Sub

    2013-09-17

    A method for forming a longitudinal subsurface heater includes longitudinally welding an electrically conductive sheath of an insulated conductor heater along at least one longitudinal strip of metal. The longitudinal strip is formed into a tubular around the insulated conductor heater with the insulated conductor heater welded along the inside surface of the tubular.

  11. Rayleigh approximation to ground state of the Bose and Coulomb glasses

    DOE PAGES [OSTI]

    Ryan, S. D.; Mityushev, V.; Vinokur, V. M.; Berlyand, L.

    2015-01-16

    Glasses are rigid systems in which competing interactions prevent simultaneous minimization of local energies. This leads to frustration and highly degenerate ground states the nature and properties of which are still far from being thoroughly understood. We report an analytical approach based on the method of functional equations that allows us to construct the Rayleigh approximation to the ground state of a two-dimensional (2D) random Coulomb system with logarithmic interactions. We realize a model for 2D Coulomb glass as a cylindrical type II superconductor containing randomly located columnar defects (CD) which trap superconducting vortices induced by applied magnetic field. Ourmore » findings break ground for analytical studies of glassy systems, marking an important step towards understanding their properties.« less

  12. Derivative couplings between TDDFT excited states obtained by direct differentiation in the Tamm-Dancoff approximation

    SciTech Connect

    Ou, Qi; Fatehi, Shervin; Alguire, Ethan; Subotnik, Joseph E.; Shao, Yihan

    2014-07-14

    Working within the Tamm-Dancoff approximation, we calculate the derivative couplings between time-dependent density-functional theory excited states by assuming that the Kohn-Sham superposition of singly excited determinants represents a true electronic wavefunction. All Pulay terms are included in our derivative coupling expression. The reasonability of our approach can be established by noting that, for closely separated electronic states in the infinite basis limit, our final expression agrees exactly with the Chernyak-Mukamel expression (with transition densities from response theory). Finally, we also validate our approach empirically by analyzing the behavior of the derivative couplings around the T{sub 1}/T{sub 2} conical intersection of benzaldehyde.

  13. A 3D approximate maximum likelihood solver for localization of fish implanted with acoustic transmitters

    DOE PAGES [OSTI]

    Li, Xinya; Deng, Z. Daniel; USA, Richland Washington; Sun, Yannan; USA, Richland Washington; Martinez, Jayson J.; USA, Richland Washington; Fu, Tao; USA, Richland Washington; McMichael, Geoffrey A.; et al

    2014-11-27

    Better understanding of fish behavior is vital for recovery of many endangered species including salmon. The Juvenile Salmon Acoustic Telemetry System (JSATS) was developed to observe the out-migratory behavior of juvenile salmonids tagged by surgical implantation of acoustic micro-transmitters and to estimate the survival when passing through dams on the Snake and Columbia Rivers. A robust three-dimensional solver was needed to accurately and efficiently estimate the time sequence of locations of fish tagged with JSATS acoustic transmitters, to describe in sufficient detail the information needed to assess the function of dam-passage design alternatives. An approximate maximum likelihood solver was developedmore » using measurements of time difference of arrival from all hydrophones in receiving arrays on which a transmission was detected. Field experiments demonstrated that the developed solver performed significantly better in tracking efficiency and accuracy than other solvers described in the literature.« less

  14. A 3D approximate maximum likelihood solver for localization of fish implanted with acoustic transmitters

    SciTech Connect

    Li, Xinya; Deng, Z. Daniel; USA, Richland Washington; Sun, Yannan; USA, Richland Washington; Martinez, Jayson J.; USA, Richland Washington; Fu, Tao; USA, Richland Washington; McMichael, Geoffrey A.; USA, Richland Washington; Carlson, Thomas J.; USA, Richland Washington

    2014-11-27

    Better understanding of fish behavior is vital for recovery of many endangered species including salmon. The Juvenile Salmon Acoustic Telemetry System (JSATS) was developed to observe the out-migratory behavior of juvenile salmonids tagged by surgical implantation of acoustic micro-transmitters and to estimate the survival when passing through dams on the Snake and Columbia Rivers. A robust three-dimensional solver was needed to accurately and efficiently estimate the time sequence of locations of fish tagged with JSATS acoustic transmitters, to describe in sufficient detail the information needed to assess the function of dam-passage design alternatives. An approximate maximum likelihood solver was developed using measurements of time difference of arrival from all hydrophones in receiving arrays on which a transmission was detected. Field experiments demonstrated that the developed solver performed significantly better in tracking efficiency and accuracy than other solvers described in the literature.

  15. Beyond the random phase approximation: Stimulated Brillouin backscatter for finite laser coherence times

    SciTech Connect

    Korotkevich, Alexander O.; Lushnikov, Pavel M.; Rose, Harvey A.

    2015-01-15

    We developed a linear theory of backward stimulated Brillouin scatter (BSBS) of a spatially and temporally random laser beam relevant for laser fusion. Our analysis reveals a new collective regime of BSBS (CBSBS). Its intensity threshold is controlled by diffraction, once cT{sub c} exceeds a laser speckle length, with T{sub c} the laser coherence time. The BSBS spatial gain rate is approximately the sum of that due to CBSBS, and a part which is independent of diffraction and varies linearly with T{sub c}. The CBSBS spatial gain rate may be reduced significantly by the temporal bandwidth of KrF-based laser systems compared to the bandwidth currently available to temporally smoothed glass-based laser systems.

  16. Pulse profiles from spinning neutron stars in the Hartle-Thorne approximation

    SciTech Connect

    Psaltis, Dimitrios; Özel, Feryal E-mail: fozel@email.arizone.edu

    2014-09-10

    We present a new numerical algorithm for the calculation of pulse profiles from spinning neutron stars in the Hartle-Thorne approximation. Our approach allows us to formally take into account the effects of Doppler shifts and aberration, of frame dragging, as well as of the oblateness of the stellar surface and of its quadrupole moment. We confirm an earlier result that neglecting the oblateness of the neutron-star surface leads to ≅ 5%-30% errors in the calculated profiles and further show that neglecting the quadrupole moment of its spacetime leads to ≅ 1%-5% errors at a spin frequency of ≅ 600 Hz. We discuss the implications of our results for the measurements of neutron-star masses and radii with upcoming X-ray missions, such as NASA's NICER and ESA's LOFT.

  17. Experience with incomplete control rod insertion in fuel with burnup exceeding approximately 40 GWD/MTU

    SciTech Connect

    Kee, E.

    1997-01-01

    Analysis and measurement experience with fuel assemblies having incomplete control rod insertion at burnups of approximately 40 GWD/MTU is presented. Control rod motion dynamics and simplified structural analyses are presented and compared to measurement data. Fuel assembly growth measurements taken with the plant Refueling Machine Z-Tape are described and presented. Bow measurements (including plug gauging) are described and potential improvements are suggested. The measurements described and analysis performed show that sufficient guide tube bow (either from creep or yield buckling) is present in some high burnup assemblies to stop the control rods before they reach their full limit of travel. Recommendations are made that, if implemented, could improve cost performance related to testing and analysis activities.

  18. Rayleigh approximation to ground state of the Bose and Coulomb glasses

    SciTech Connect

    Ryan, S. D.; Mityushev, V.; Vinokur, V. M.; Berlyand, L.

    2015-01-16

    Glasses are rigid systems in which competing interactions prevent simultaneous minimization of local energies. This leads to frustration and highly degenerate ground states the nature and properties of which are still far from being thoroughly understood. We report an analytical approach based on the method of functional equations that allows us to construct the Rayleigh approximation to the ground state of a two-dimensional (2D) random Coulomb system with logarithmic interactions. We realize a model for 2D Coulomb glass as a cylindrical type II superconductor containing randomly located columnar defects (CD) which trap superconducting vortices induced by applied magnetic field. Our findings break ground for analytical studies of glassy systems, marking an important step towards understanding their properties.

  19. Low-energy parameters of neutron-neutron interaction in the effective-range approximation

    SciTech Connect

    Babenko, V. A.; Petrov, N. M. [National Academy of Sciences of Ukraine, Bogolyubov Institute for Theoretical Physics (Ukraine)

    2013-06-15

    The effect of the mass difference between the charged and neutral pions on the low-energy parameters of nucleon-nucleon interaction in the {sup 1}S{sub 0} state is studied in the effective-range approximation. On the basis of experimental values of the singlet parameters of neutron-proton scattering and the experimental value of the virtual-state energy for the neutron-neutron systemin the {sup 1}S{sub 0} state, the following values were obtained for the neutron-neutron scattering length and effective range: a{sub nn} = -16.59(117) fm and r{sub nn} = 2.83(11) fm. The calculated values agree well with present-day experimental results.

  20. Composite materials formed with anchored nanostructures

    SciTech Connect

    Seals, Roland D; Menchhofer, Paul A; Howe, Jane Y; Wang, Wei

    2015-03-10

    A method of forming nano-structure composite materials that have a binder material and a nanostructure fiber material is described. A precursor material may be formed using a mixture of at least one metal powder and anchored nanostructure materials. The metal powder mixture may be (a) Ni powder and (b) NiAl powder. The anchored nanostructure materials may comprise (i) NiAl powder as a support material and (ii) carbon nanotubes attached to nanoparticles adjacent to a surface of the support material. The process of forming nano-structure composite materials typically involves sintering the mixture under vacuum in a die. When Ni and NiAl are used in the metal powder mixture Ni.sub.3Al may form as the binder material after sintering. The mixture is sintered until it consolidates to form the nano-structure composite material.