National Library of Energy BETA

Sample records for linear programming lp

  1. Comparison of open-source linear programming solvers.

    SciTech Connect (OSTI)

    Gearhart, Jared Lee; Adair, Kristin Lynn; Durfee, Justin David.; Jones, Katherine A.; Martin, Nathaniel; Detry, Richard Joseph

    2013-10-01

    When developing linear programming models, issues such as budget limitations, customer requirements, or licensing may preclude the use of commercial linear programming solvers. In such cases, one option is to use an open-source linear programming solver. A survey of linear programming tools was conducted to identify potential open-source solvers. From this survey, four open-source solvers were tested using a collection of linear programming test problems and the results were compared to IBM ILOG CPLEX Optimizer (CPLEX) [1], an industry standard. The solvers considered were: COIN-OR Linear Programming (CLP) [2], [3], GNU Linear Programming Kit (GLPK) [4], lp_solve [5] and Modular In-core Nonlinear Optimization System (MINOS) [6]. As no open-source solver outperforms CPLEX, this study demonstrates the power of commercial linear programming software. CLP was found to be the top performing open-source solver considered in terms of capability and speed. GLPK also performed well but cannot match the speed of CLP or CPLEX. lp_solve and MINOS were considerably slower and encountered issues when solving several test problems.

  2. LDRD final report on massively-parallel linear programming : the parPCx system.

    SciTech Connect (OSTI)

    Parekh, Ojas; Phillips, Cynthia Ann; Boman, Erik Gunnar

    2005-02-01

    This report summarizes the research and development performed from October 2002 to September 2004 at Sandia National Laboratories under the Laboratory-Directed Research and Development (LDRD) project ''Massively-Parallel Linear Programming''. We developed a linear programming (LP) solver designed to use a large number of processors. LP is the optimization of a linear objective function subject to linear constraints. Companies and universities have expended huge efforts over decades to produce fast, stable serial LP solvers. Previous parallel codes run on shared-memory systems and have little or no distribution of the constraint matrix. We have seen no reports of general LP solver runs on large numbers of processors. Our parallel LP code is based on an efficient serial implementation of Mehrotra's interior-point predictor-corrector algorithm (PCx). The computational core of this algorithm is the assembly and solution of a sparse linear system. We have substantially rewritten the PCx code and based it on Trilinos, the parallel linear algebra library developed at Sandia. Our interior-point method can use either direct or iterative solvers for the linear system. To achieve a good parallel data distribution of the constraint matrix, we use a (pre-release) version of a hypergraph partitioner from the Zoltan partitioning library. We describe the design and implementation of our new LP solver called parPCx and give preliminary computational results. We summarize a number of issues related to efficient parallel solution of LPs with interior-point methods including data distribution, numerical stability, and solving the core linear system using both direct and iterative methods. We describe a number of applications of LP specific to US Department of Energy mission areas and we summarize our efforts to integrate parPCx (and parallel LP solvers in general) into Sandia's massively-parallel integer programming solver PICO (Parallel Interger and Combinatorial Optimizer). We

  3. Averaging and Linear Programming in Some Singularly Perturbed Problems of Optimal Control

    SciTech Connect (OSTI)

    Gaitsgory, Vladimir; Rossomakhine, Sergey

    2015-04-15

    The paper aims at the development of an apparatus for analysis and construction of near optimal solutions of singularly perturbed (SP) optimal controls problems (that is, problems of optimal control of SP systems) considered on the infinite time horizon. We mostly focus on problems with time discounting criteria but a possibility of the extension of results to periodic optimization problems is discussed as well. Our consideration is based on earlier results on averaging of SP control systems and on linear programming formulations of optimal control problems. The idea that we exploit is to first asymptotically approximate a given problem of optimal control of the SP system by a certain averaged optimal control problem, then reformulate this averaged problem as an infinite-dimensional linear programming (LP) problem, and then approximate the latter by semi-infinite LP problems. We show that the optimal solution of these semi-infinite LP problems and their duals (that can be found with the help of a modification of an available LP software) allow one to construct near optimal controls of the SP system. We demonstrate the construction with two numerical examples.

  4. Toward portable programming of numerical linear algebra on manycore...

    Office of Scientific and Technical Information (OSTI)

    Toward portable programming of numerical linear algebra on manycore nodes. Citation Details In-Document Search Title: Toward portable programming of numerical linear algebra on ...

  5. Sustainable Technology Capital, LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Capital, LP Jump to: navigation, search Logo: Sustainable Technology Capital, LP Name: Sustainable Technology Capital, LP Address: 625 Liberty Ave., Suite 3200 Place: Pittsburgh,...

  6. Planning under uncertainty solving large-scale stochastic linear programs

    SciTech Connect (OSTI)

    Infanger, G. . Dept. of Operations Research Technische Univ., Vienna . Inst. fuer Energiewirtschaft)

    1992-12-01

    For many practical problems, solutions obtained from deterministic models are unsatisfactory because they fail to hedge against certain contingencies that may occur in the future. Stochastic models address this shortcoming, but up to recently seemed to be intractable due to their size. Recent advances both in solution algorithms and in computer technology now allow us to solve important and general classes of practical stochastic problems. We show how large-scale stochastic linear programs can be efficiently solved by combining classical decomposition and Monte Carlo (importance) sampling techniques. We discuss the methodology for solving two-stage stochastic linear programs with recourse, present numerical results of large problems with numerous stochastic parameters, show how to efficiently implement the methodology on a parallel multi-computer and derive the theory for solving a general class of multi-stage problems with dependency of the stochastic parameters within a stage and between different stages.

  7. Deterministic algorithms for 2-d convex programming and 3-d online linear programming

    SciTech Connect (OSTI)

    Chan, T.M.

    1997-06-01

    We present a deterministic algorithm for solving two-dimensional convex programs with a linear objective function. The algorithm requires O(k log k) primitive operations for k constraints; if a feasible point is given, the bound reduces to O(k log k/ log log k). As a consequence, we can decide whether k convex n-gons in the plane have a common intersection in O(k log n min (log k, log log n)) worst-case time. Furthermore, we can solve the three-dimensional online linear programming problem in o(log{sup 3} n) worst-case time per operation.

  8. Microgrid Reliability Modeling and Battery Scheduling Using Stochastic Linear Programming

    SciTech Connect (OSTI)

    Cardoso, Goncalo; Stadler, Michael; Siddiqui, Afzal; Marnay, Chris; DeForest, Nicholas; Barbosa-Povoa, Ana; Ferrao, Paulo

    2013-05-23

    This paper describes the introduction of stochastic linear programming into Operations DER-CAM, a tool used to obtain optimal operating schedules for a given microgrid under local economic and environmental conditions. This application follows previous work on optimal scheduling of a lithium-iron-phosphate battery given the output uncertainty of a 1 MW molten carbonate fuel cell. Both are in the Santa Rita Jail microgrid, located in Dublin, California. This fuel cell has proven unreliable, partially justifying the consideration of storage options. Several stochastic DER-CAM runs are executed to compare different scenarios to values obtained by a deterministic approach. Results indicate that using a stochastic approach provides a conservative yet more lucrative battery schedule. Lower expected energy bills result, given fuel cell outages, in potential savings exceeding 6percent.

  9. Texas Power, LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    search Name: Texas Power, LP Place: Texas Website: www.texaspoweronline.com Facebook: https:www.facebook.compagesTexas-Power-LP110752578951516 References: EIA Form...

  10. Future Energy Assets LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Assets LP Jump to: navigation, search Name: Future Energy Assets LP Place: Austin, Texas Zip: 78701 Product: String representation "Future Energy A ... S and in China." is too...

  11. Corpus Christi Cogeneration LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Corpus Christi Cogeneration LP Jump to: navigation, search Name: Corpus Christi Cogeneration LP Place: Texas Phone Number: 408-995-5115 Website: www.calpine.com Outage Hotline:...

  12. SRW Cogeneration LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    SRW Cogeneration LP Jump to: navigation, search Name: SRW Cogeneration LP Place: Texas Phone Number: 281-293-1000 Website: www.puc.texas.govindustryele Outage Hotline:...

  13. Hunterdon Cogeneration LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Hunterdon Cogeneration LP Jump to: navigation, search Name: Hunterdon Cogeneration LP Place: New Jersey References: EIA Form EIA-861 Final Data File for 2010 - File220101 EIA...

  14. Refining and end use study of coal liquids. Topical report: Petroleum Refinery; Linear Programming Model; and Design Basis

    SciTech Connect (OSTI)

    1995-03-01

    A model was developed for use in the Bechtel PIMS (Process Industry Modeling System) linear programming software to simulate a generic Midwest (PADD II) petroleum refinery of the future. This ``petroleum-only`` version of the model establishes the size and complexity of the refinery after the year 2000 and prior to the introduction of coal liquids. It should be noted that no assumption has been made on when a plant can be built to produce coal liquids except that it will be after the year 2000. The year 2000 was chosen because it is the latest year where fuel property and emission standards have been set by the Environmental Protection Agency. It assumes the refinery has been modified to accept crudes that are heavier in gravity and higher in sulfur than today`s average crude mix. In addition, the refinery has also been modified to produce a product slate of transportation fuels of the future (i.e. 40% reformulated gasolines). This model will be used as a basis for determining the optimum scheme for processing coal liquids in a petroleum refinery. This report summarizes the design basis for this ``petroleum only`` LP refinery model. A report detailing the refinery configuration when coal liquids are processed will be provided at a later date.

  15. EA-303-A Saracen Merchant Energy, LP | Department of Energy

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

    3-A Saracen Merchant Energy, LP EA-303-A Saracen Merchant Energy, LP Order authorizing Saracen Merchant Energy, LP to export electric energy to Canada EA-303-A Saracen Merchant Energy, LP (41.87 KB) More Documents & Publications EA-409 Saracen Power LP EA-340 Saracen Energy Partners, LP EA-340-A Saracen Energy Partners, LP

  16. Dunbarton Energy Partners LP Biomass Facility | Open Energy Informatio...

    Open Energy Information (Open El) [EERE & EIA]

    Dunbarton Energy Partners LP Biomass Facility Jump to: navigation, search Name Dunbarton Energy Partners LP Biomass Facility Facility Dunbarton Energy Partners LP Sector Biomass...

  17. Smithtown Energy Partners LP Biomass Facility | Open Energy Informatio...

    Open Energy Information (Open El) [EERE & EIA]

    Smithtown Energy Partners LP Biomass Facility Jump to: navigation, search Name Smithtown Energy Partners LP Biomass Facility Facility Smithtown Energy Partners LP Sector Biomass...

  18. Suffolk Energy Partners LP Biomass Facility | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Energy Partners LP Biomass Facility Jump to: navigation, search Name Suffolk Energy Partners LP Biomass Facility Facility Suffolk Energy Partners LP Sector Biomass Facility Type...

  19. Biomass One LP Biomass Facility | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    LP Biomass Facility Jump to: navigation, search Name Biomass One LP Biomass Facility Facility Biomass One LP Sector Biomass Location Jackson County, Oregon Coordinates 42.334535,...

  20. Bridgewater Power LP Biomass Facility | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Power LP Biomass Facility Jump to: navigation, search Name Bridgewater Power LP Biomass Facility Facility Bridgewater Power LP Sector Biomass Location Grafton County, New Hampshire...

  1. Montenay Montgomery LP Biomass Facility | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Montenay Montgomery LP Biomass Facility Jump to: navigation, search Name Montenay Montgomery LP Biomass Facility Facility Montenay Montgomery LP Sector Biomass Facility Type...

  2. MMA LA Power LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    MMA LA Power LP Jump to: navigation, search Name: MMA LA Power LP -- ELACC Photovoltaic Power Facility Place: California Phone Number: 415-986-8038 or 800-331-1534 Website:...

  3. MMA WBF Power LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    LP Jump to: navigation, search Name: MMA WBF Power LP -- Bolthouse S&P and Rowen Farms Solar Place: California Phone Number: 415-986-8038 or 800-331-1534 Website:...

  4. MMA Fresno Power LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    MMA Fresno Power LP Jump to: navigation, search Name: MMA Fresno Power LP -- CSU Fresno Solar Project Place: California Phone Number: 415-986-8038 or 800-331-1534 Website:...

  5. Biomass One LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    LP Jump to: navigation, search Name: Biomass One LP Place: White City, Oregon Product: Owner and operator of a 25MW wood fired cogeneration plant in Oregon. References: Biomass One...

  6. Clear Lake Cogeneration LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Cogeneration LP Jump to: navigation, search Name: Clear Lake Cogeneration LP Place: Idaho Phone Number: 281-474-7611 Outage Hotline: 281-474-7611 References: EIA Form EIA-861 Final...

  7. LP Hoying, LLC | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    LP Hoying, LLC Jump to: navigation, search Name: LP Hoying, LLC Address: P.O. Box 258 Place: Fort Loramie, Ohio Zip: 45845-0258 Sector: Solar Product: Retail, Supplier - PC Power...

  8. MMA GDC Power LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Power LP Jump to: navigation, search Name: MMA GDC Power LP -- Gap Pacific Distribution Center Place: California Phone Number: 415-986-8038 or 800-331-1534 Website:...

  9. EA-340 Saracen Energy Partners, LP | Department of Energy

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

    Saracen Energy Partners, LP EA-340 Saracen Energy Partners, LP Order authorizing Saracen Energy Partners, LP to export electric energy to Canada EA-340 Saracen Energy Partners, LP (2.97 MB) More Documents & Publications EA-340-A

  10. The MARX Modulator Development Program for the International Linear Collider

    SciTech Connect (OSTI)

    Leyh, G.E.; /SLAC

    2006-06-12

    The ILC Marx Modulator Development Program at SLAC is working towards developing a full-scale ILC Marx ''Reference Design'' modulator prototype, with the goal of significantly reducing the size and cost of the ILC modulator while improving overall modulator efficiency and availability. The ILC Reference Design prototype will provide a proof-of-concept model to industry in advance of Phase II SBIR funding, and also allow operation of the new 10MW L-Band Klystron prototypes immediately upon their arrival at SLAC.

  11. American Photovoltaics LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Photovoltaics LP Place: Houston, Texas Product: Manufactures and markets thin-film photovoltaic modules. Coordinates: 29.76045, -95.369784 Show Map Loading map......

  12. Access Fund Partners LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Partners, LP Place: San Juan Capistrano, California Zip: 92675 Product: Boutique investment banking and investment advisory firm with clean energy focus References: Access Fund...

  13. Fulcrum Power Services LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Name: Fulcrum Power Services LP Place: Houston, Texas Zip: 77056 Product: fulcrum is an energy management solutions provider for managing power generation assets and load serving...

  14. WTU Energy, LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Energy, LP Place: Texas Phone Number: 1-866-322-5563 Website: www.wturetailenergy.com Twitter: @wtuenergy Facebook: https:www.facebook.comWTUenergy Outage Hotline:...

  15. Heartland Grain Fuels LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Name: Heartland Grain Fuels LP Place: Aberdeen, South Dakota Zip: 57401 Sector: Bioenergy Product: Heartland Grain Fuels is a cooperatively-owned producer of corn-derived...

  16. Spark Energy, LP (Connecticut) | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Connecticut) Jump to: navigation, search Name: Spark Energy, LP Place: Connecticut Phone Number: 1-877-547-7275 Website: www.sparkenergy.comenconnect Outage Hotline:...

  17. Crimson Renewable Energy LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Crimson Renewable Energy LP Place: Denver, Colorado Zip: 80202 Sector: Biomass, Renewable Energy Product: Focused on biodiesel production and conversion of waste biomass into...

  18. Hydrogenica Partners LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Name: Hydrogenica Partners LP Place: Denver, Colorado Zip: CO 80202 Sector: Hydro, Hydrogen, Renewable Energy Product: A small venture capital company focusing on clean,...

  19. EA-368 Brookfield Energy Marketing LP | Department of Energy

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

    8 Brookfield Energy Marketing LP EA-368 Brookfield Energy Marketing LP Order authorizing Brookfield Energy Marketing LP to export electric energy to Canada EA-368 Brookfield Energy Marketing LP (3.37 MB) More Documents & Publications Record of Categorical Exclusion (CS) Determination, Office of Electricity Delivery and Energy Reliability (OE): EA-368 Brookfield Energy Marketing LP EA-368-A Brookfield Energy Marketing LP EA-258-D Brookfield Energy Marketing Inc.

  20. Ridge Energy Storage and Grid Services LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Energy Storage and Grid Services LP Jump to: navigation, search Name: Ridge Energy Storage and Grid Services LP Place: Houston, Texas Zip: 77027 Product: Developer of compressed...

  1. KMS Joliet Power Partners LP Biomass Facility | Open Energy Informatio...

    Open Energy Information (Open El) [EERE & EIA]

    navigation, search Name KMS Joliet Power Partners LP Biomass Facility Facility KMS Joliet Power Partners LP Sector Biomass Facility Type Landfill Gas Location Will County, Illinois...

  2. El Paso Merchant Energy LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Energy LP Jump to: navigation, search Name: El Paso Merchant Energy LP Place: Texas Phone Number: (713) 369-9000 Website: www.kindermorgan.compagesse Outage Hotline: (713)...

  3. Direct Energy, LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Direct Energy, LP Place: Texas Website: www.directenergy.com Twitter: @directenergy Facebook: https:www.facebook.comDirectEnergy Outage Hotline: 1-855-461-1926 References: EIA...

  4. Pattern Energy Group LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    and operates renewable and transmission energy assets across North America and parts of Latin America. References: Pattern Energy Group LP1 This article is a stub. You can help...

  5. Onsite Recovered Energy LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    to: navigation, search Name: Onsite Recovered Energy LP Address: Centurion Region: South Africa Sector: Marine and Hydrokinetic Year Founded: 2009 Phone Number: +27 (0)83 526-3767...

  6. SH Coatings LP | Department of Energy

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

    SH Coatings LP America's Next Top Energy Innovator Challenge 10147 likes SH Coatings LP Oak Ridge National Laboratory SH Coating protects power lines from inclement weather as well as contamination from salt deposits that often cause flashovers in coastal environments. The coating can be applied to existing power lines and equipment in any field condition. The most important application is coating power lines in ice storm threatened areas. Power lines coated with SHC prevent the ice build-up

  7. Refining and end use study of coal liquids II - linear programming analysis

    SciTech Connect (OSTI)

    Lowe, C.; Tam, S.

    1995-12-31

    A DOE-funded study is underway to determine the optimum refinery processing schemes for producing transportation fuels that will meet CAAA regulations from direct and indirect coal liquids. The study consists of three major parts: pilot plant testing of critical upgrading processes, linear programming analysis of different processing schemes, and engine emission testing of final products. Currently, fractions of a direct coal liquid produced form bituminous coal are being tested in sequence of pilot plant upgrading processes. This work is discussed in a separate paper. The linear programming model, which is the subject of this paper, has been completed for the petroleum refinery and is being modified to handle coal liquids based on the pilot plant test results. Preliminary coal liquid evaluation studies indicate that, if a refinery expansion scenario is adopted, then the marginal value of the coal liquid (over the base petroleum crude) is $3-4/bbl.

  8. EA-340-A Saracen Energy Partners, LP | Department of Energy

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

    -A Saracen Energy Partners, LP EA-340-A Saracen Energy Partners, LP Order authorizing Saracen Energy Partners, LP to export electric energy to Canada EA-340-A Saracen Energy Partners, LP (384.01 KB) More Documents & Publications EA-340

  9. SLFP: A stochastic linear fractional programming approach for sustainable waste management

    SciTech Connect (OSTI)

    Zhu, H.; Huang, G.H.

    2011-12-15

    Highlights: > A new fractional programming (SLFP) method is developed for waste management. > SLFP can solve ratio optimization problems associated with random inputs. > A case study of waste flow allocation demonstrates its applicability. > SLFP helps compare objectives of two aspects and reflect system efficiency. > This study supports in-depth analysis of tradeoffs among multiple system criteria. - Abstract: A stochastic linear fractional programming (SLFP) approach is developed for supporting sustainable municipal solid waste management under uncertainty. The SLFP method can solve ratio optimization problems associated with random information, where chance-constrained programming is integrated into a linear fractional programming framework. It has advantages in: (1) comparing objectives of two aspects, (2) reflecting system efficiency, (3) dealing with uncertainty expressed as probability distributions, and (4) providing optimal-ratio solutions under different system-reliability conditions. The method is applied to a case study of waste flow allocation within a municipal solid waste (MSW) management system. The obtained solutions are useful for identifying sustainable MSW management schemes with maximized system efficiency under various constraint-violation risks. The results indicate that SLFP can support in-depth analysis of the interrelationships among system efficiency, system cost and system-failure risk.

  10. Fuzzy linear programming based optimal fuel scheduling incorporating blending/transloading facilities

    SciTech Connect (OSTI)

    Djukanovic, M.; Babic, B.; Milosevic, B.; Sobajic, D.J.; Pao, Y.H. |

    1996-05-01

    In this paper the blending/transloading facilities are modeled using an interactive fuzzy linear programming (FLP), in order to allow the decision-maker to solve the problem of uncertainty of input information within the fuel scheduling optimization. An interactive decision-making process is formulated in which decision-maker can learn to recognize good solutions by considering all possibilities of fuzziness. The application of the fuzzy formulation is accompanied by a careful examination of the definition of fuzziness, appropriateness of the membership function and interpretation of results. The proposed concept provides a decision support system with integration-oriented features, whereby the decision-maker can learn to recognize the relative importance of factors in the specific domain of optimal fuel scheduling (OFS) problem. The formulation of a fuzzy linear programming problem to obtain a reasonable nonfuzzy solution under consideration of the ambiguity of parameters, represented by fuzzy numbers, is introduced. An additional advantage of the FLP formulation is its ability to deal with multi-objective problems.

  11. Little Sioux Corn Processors LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    LP Place: Iowa Zip: 51035 Product: Owners and operators of the 40m gallon per year bioethanol plant in Marcus, Iowa. References: Little Sioux Corn Processors LP1 This article...

  12. Galveston Bay Biodiesel LP GBB | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Galveston Bay Biodiesel LP GBB Jump to: navigation, search Name: Galveston Bay Biodiesel LP (GBB) Place: Houston, Texas Product: Developer of a 75.8m litre per year biodiesel...

  13. FRV SI Transport Solar LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    SI Transport Solar LP Jump to: navigation, search Name: FRV SI Transport Solar LP Place: Arizona References: EIA Form EIA-861 Final Data File for 2010 - File220101 EIA Form 861...

  14. EA-353 Boralex Ashland LP | Department of Energy

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

    Order authorizing Boralex Ashland LP to export electric energy to Canada PDF icon EA- 353 ... Boralex Ashland LP: Federal Register Notice Vol 74 No 151 EA-344 Twin Cities Power-Canada,

  15. File:Wind-turbine-economics-lp.pdf | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Wind-turbine-economics-lp.pdf Jump to: navigation, search File File history File usage Metadata File:Wind-turbine-economics-lp.pdf Size of this preview: 463 599 pixels. Other...

  16. FreshTracks Capital LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    FreshTracks Capital LP Jump to: navigation, search Name: FreshTracks Capital LP Address: 29 Harbor Road, Suite 200 Place: Shelburne, New Hampshire Zip: 05482 Product: Venture...

  17. APN Starfirst, L.P. (Ohio) | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    APN Starfirst, L.P. (Ohio) Jump to: navigation, search Name: APN Starfirst, L.P. Place: Ohio Phone Number: (877) 977-2636 or (610) 372-8500 Website: www.americanpowernet.com...

  18. Cooperative L&P Assn Lake Cnty | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Cooperative L&P Assn Lake Cnty Jump to: navigation, search Name: Cooperative L&P Assn Lake Cnty Place: Minnesota Phone Number: 800-580-5881 Website: www.clpower.com Facebook:...

  19. Minnesota Valley Coop L&P Assn | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Minnesota Valley Coop L&P Assn Jump to: navigation, search Name: Minnesota Valley Coop L&P Assn Place: Minnesota Phone Number: 320-269-2163 or 1-800-247-5051 Website:...

  20. EA-409 Saracen Power LP | Department of Energy

    Energy.gov (indexed) [DOE]

    EA-409 Sararcen Power LP Application to Export Electric Energy OE Docket No. EA-409 Saracen Power LP: Federal Register Notice, Volume 80, No. 70 - April 13, 2015 EA-196-D Minnesota ...

  1. Update on Mammoth Pacific, LP Operations | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Update on Mammoth Pacific, LP Operations Abstract Abstract unavailable. Author Charlene L. Wardlow Published Publisher Not Provided, 2011 DOI Not Provided Check for DOI...

  2. Sixth SIAM conference on applied linear algebra: Final program and abstracts. Final technical report

    SciTech Connect (OSTI)

    1997-12-31

    Linear algebra plays a central role in mathematics and applications. The analysis and solution of problems from an amazingly wide variety of disciplines depend on the theory and computational techniques of linear algebra. In turn, the diversity of disciplines depending on linear algebra also serves to focus and shape its development. Some problems have special properties (numerical, structural) that can be exploited. Some are simply so large that conventional approaches are impractical. New computer architectures motivate new algorithms, and fresh ways to look at old ones. The pervasive nature of linear algebra in analyzing and solving problems means that people from a wide spectrum--universities, industrial and government laboratories, financial institutions, and many others--share an interest in current developments in linear algebra. This conference aims to bring them together for their mutual benefit. Abstracts of papers presented are included.

  3. EA-206-B Frontera Generation L.P. | Department of Energy

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

    6-B Frontera Generation L.P. EA-206-B Frontera Generation L.P. Order authorizing Frontera Generation L.P. to export electricity to Mexico. EA-206-B Frontera (MX).pdf (270.81 KB) ...

  4. EA-338 Shell Energy North America (US), L.P. | Department of...

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

    Shell Energy North America (US), L.P. EA-338 Shell Energy North America (US), L.P. Order authorizing Shell Energy North America (US), L.P. to export electric energy to Mexico ...

  5. EA-339 Shell Energy North America (US), L.P. | Department of...

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

    9 Shell Energy North America (US), L.P. EA-339 Shell Energy North America (US), L.P. Order authorizing Shell Energy North America (US), L.P. to export electric energy to Canada ...

  6. TEE-0069 - In the Matter of Severson Oil & LP Co., Inc. | Department...

    Energy Savers

    69 - In the Matter of Severson Oil & LP Co., Inc. TEE-0069 - In the Matter of Severson Oil & LP Co., Inc. On March 23, 2010, Severson Oil & LP Co., Inc. (Severson) filed an ...

  7. Freeport LNG Expansion, L.P. and FLNG Liquefaction, LLC - FE...

    Energy.gov (indexed) [DOE]

    (FLEX I Conditional Order) to Freeport LNG Expansion, L.P. and FLNG Liquefaction, LLC, ... holders, together with Freeport LNG Expansion, L.P. and FLNG Liquefaction, LLC ...

  8. PP-285 Sharyland Utilities LP | Department of Energy

    Energy.gov (indexed) [DOE]

    Mexico border. PDF icon PP-285 Sharyland Utilities LP More Documents & Publications PP-35 Trico Electric Cooperative Inc PP-107-1 Arizona Public Service Company PP-317 AEP Texas ...

  9. APN Starfirst, L.P. (Texas) | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    APN Starfirst, L.P. Place: Texas Phone Number: 877-977-2636 Website: www.puc.texas.govindustryele Outage Hotline: 877-977-2636 References: EIA Form EIA-861 Final Data File for...

  10. Ambit Energy, L.P. (New York) | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    New York) Jump to: navigation, search Name: Ambit Energy, L.P. Place: New York Phone Number: (877) 282-6248 Website: ww2.ambitenergy.com Twitter: @AmbitEnergy Facebook: https:...

  11. APN Starfirst, L.P. (Illinois) | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    APN Starfirst, L.P. Place: Illinois Phone Number: (877) 977-2636 Website: www.americanpowernet.comindex Outage Hotline: (877) 977-2636 References: EIA Form EIA-861 Final Data File...

  12. Ambit Energy, L.P. (Maryland) | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Maryland) Jump to: navigation, search Name: Ambit Energy, L.P. Place: Maryland Phone Number: (877) 282-6248 Website: ww2.ambitenergy.com Twitter: @AmbitEnergy Facebook: https:...

  13. EA-320-A S.A.C. Energy Investments, L.P. | Department of Energy

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

    0-A S.A.C. Energy Investments, L.P. EA-320-A S.A.C. Energy Investments, L.P. Order authorizing S.A.C. Energy Investments, L.P. to export electric energy to Canada EA-320-A S.A.C. Energy Investments, L.P. (473.37 KB) More Documents & Publications EA-359 Louis Dreyfus Energy Services L.P. EA-339 Shell Energy North America (US), L.P. EA-328 RBC Energy Services L.P.

  14. EA-359 Louis Dreyfus Energy Services L.P. | Department of Energy

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

    Louis Dreyfus Energy Services L.P. EA-359 Louis Dreyfus Energy Services L.P. Order authorizing Louis Dreyfus Energy Services L.P. to export electric energy to Canada EA-359 Louis Dreyfus Energy Services L.P. (377.35 KB) More Documents & Publications Application to Export Electric Energy OE Docket No. EA-359 Louis Dreyfus Energy Services L.P. EA-359-A Castleton Commodities Merchant Trading L.P. EA-359-B Castleton Commodities Merchant Trading L.P.

  15. EA-359-A Castleton Commodities Merchant Trading L.P. | Department of Energy

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

    A Castleton Commodities Merchant Trading L.P. EA-359-A Castleton Commodities Merchant Trading L.P. Order authorizing Castleton Commodities Merchant Trading to export electric energy to Canada. Name Change from Louis Dreyfus Energy Services L.P. EA-359-A Castleton Commodities (CN) Name Change.pdf (107.56 KB) More Documents & Publications EA-359-B Castleton Commodities Merchant Trading L.P. EA-359 Louis Dreyfus Energy Services L.P. EA-353-A ReEnergy Ashland LP

  16. PP-299-1 Sea Breeze Olympic Converter LP | Department of Energy

    Energy.gov (indexed) [DOE]

    Sea Breeze Olympic Converter LP to construct, operate, and maintain electric transmission facilities at the U.S-Canada border. PDF icon PP-299-1 Sea Breeze Olympic Converter LP ...

  17. SEMI-ANNUAL REPORTS - FREEPORT LNG EXPANSION L.P. & FLNG LIQUEFACTION...

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

    - FREEPORT LNG EXPANSION L.P. & FLNG LIQUEFACTION, LLC - FE DKT. 10-161-LNG - ORDER 3282 SEMI-ANNUAL REPORTS - FREEPORT LNG EXPANSION L.P. & FLNG LIQUEFACTION, LLC - FE DKT. ...

  18. SEMI-ANNUAL REPORTS FOR FREEPORT LNG EXPANSION, L.P. & FLNG LIQUEFACTI...

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

    EXPANSION, L.P. & FLNG LIQUEFACTION, LLC - FE DKT. NO. 11-161-LNG - ORDER 3357 SEMI-ANNUAL REPORTS FOR FREEPORT LNG EXPANSION, L.P. & FLNG LIQUEFACTION, LLC - FE DKT. NO. ...

  19. SEMI-ANNUAL REPORTS FOR FREEPORT LNG EXPANSION, L.P. & FLNG LIQUEFACTI...

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

    EXPANSION, L.P. & FLNG LIQUEFACTION, LLC - FE DKT. NOs. 12-06-LNG, 10-161-LNG and 11-161-LNG (Order Nos. 3066, 3282 and 3357) SEMI-ANNUAL REPORTS FOR FREEPORT LNG EXPANSION, L.P. & ...

  20. File:Wind-turbine-economics-lp-HS.pdf | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Wind-turbine-economics-lp-HS.pdf Jump to: navigation, search File File history File usage Metadata File:Wind-turbine-economics-lp-HS.pdf Size of this preview: 463 599 pixels....

  1. SEMI-ANNUAL REPORTS FOR FREEPORT LNG EXPANSION L.P. & FLNG LIQUEFACTIO...

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

    LNG EXPANSION L.P. & FLNG LIQUEFACTION, LLC - FE DKT. 10-160-LNG - ORDER 2913 SEMI-ANNUAL REPORTS FOR FREEPORT LNG EXPANSION L.P. & FLNG LIQUEFACTION, LLC - FE DKT. 10-160-LNG - ...

  2. Freeport LNG Expansion, L.P., FLNG Liquefaction, LLC, FLNG Liquefactio...

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

    Freeport LNG Expansion, L.P., FLNG Liquefaction, LLC, FLNG Liquefaction 2, LLC and FLNG Liquefaction 3, LLC - 14-005-CIC Freeport LNG Expansion, L.P., FLNG Liquefaction, LLC, FLNG ...

  3. SEMI-ANNUAL REPORTS FOR DOMINION COVE POINT, LP - DK. NO. 11...

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

    DOMINION COVE POINT, LP - DK. NO. 11-128-LNG - ORDER 3331 (Conditional Order) and Order 3331-A Final Order SEMI-ANNUAL REPORTS FOR DOMINION COVE POINT, LP - DK. NO. 11-128-LNG - ...

  4. Idaho Cnty L&P Coop Assn, Inc | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Cnty L&P Coop Assn, Inc Jump to: navigation, search Name: Idaho Cnty L&P Coop Assn, Inc Place: Idaho Phone Number: 208-983-1065 Website: www.iclp.coop Outage Hotline: 877-212-0424...

  5. SEMI-ANNUAL REPORTS FOR FREEPORT LNG EXPANSION, L.P. & FLNG LIQUEFACTI...

    Energy Savers

    EXPANSION, L.P. & FLNG LIQUEFACTION, LLC - FE DKT. NO. 11-161-LNG - ORDER 3357 SEMI-ANNUAL REPORTS FOR FREEPORT LNG EXPANSION, L.P. & FLNG LIQUEFACTION, LLC - FE DKT. NO....

  6. SEMI-ANNUAL REPORTS - FREEPORT LNG EXPANSION L.P. & FLNG LIQUEFACTION...

    Energy Savers

    - FREEPORT LNG EXPANSION L.P. & FLNG LIQUEFACTION, LLC - FE DKT. 10-161-LNG - ORDER 3282 SEMI-ANNUAL REPORTS - FREEPORT LNG EXPANSION L.P. & FLNG LIQUEFACTION, LLC - FE DKT....

  7. SEMI-ANNUAL REPORTS FOR FREEPORT LNG EXPANSION L.P. & FLNG LIQUEFACTIO...

    Energy Savers

    EXPANSION L.P. & FLNG LIQUEFACTION, LLC - FE DKT. NO. 12-06-LNG - ORDER 3066 SEMI-ANNUAL REPORTS FOR FREEPORT LNG EXPANSION L.P. & FLNG LIQUEFACTION, LLC - FE DKT. NO. 12-06-LNG -...

  8. EA-338-A Shell Energy North America (US), L.P. | Department of...

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

    -A Shell Energy North America (US), L.P. EA-338-A Shell Energy North America (US), L.P. Order authorizing Shell Energy to export electric energy to Mexico. EA-338-A Shell Energy ...

  9. EA-339-A Shell Energy North America (US), L.P. | Department of...

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

    -A Shell Energy North America (US), L.P. EA-339-A Shell Energy North America (US), L.P. Order authorizing Shell Energy to export electric energy to Canada. EA-339-A Shell Energy ...

  10. EA-353-A ReEnergy Ashland LP | Department of Energy

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

    -A ReEnergy Ashland LP EA-353-A ReEnergy Ashland LP Amendment to Order authorizing ReEnergy Ashland LP to export electric energy to Canada. EA-353-A ReEnergy Ashland Name Change.pdf (87.73 KB) More Documents & Publications EA-359-A Castleton Commodities Merchant Trading L.P. EA-421 ReEnergy Fort Fairfield LLC Application to Export Electric Energy OE Docket No. EA-421 ReEnergy Fort Fairfield LLC

  11. EA-359-B Castleton Commodities Merchant Trading L.P. | Department of Energy

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

    B Castleton Commodities Merchant Trading L.P. EA-359-B Castleton Commodities Merchant Trading L.P. Order authorizing Castleton to export electric energy to Canada. EA-359-B Castleton Commodiities (CN).pdf (1.06 MB) More Documents & Publications EA-359-A Castleton Commodities Merchant Trading L.P. EA-365-A Centre Lane Trading Limited EA-339-A Shell Energy North America (US), L.P.

  12. EA-167 PG&E Energy Trading-Power, L.P | Department of Energy

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

    PG&E Energy Trading-Power, L.P EA-167 PG&E Energy Trading-Power, L.P Order authorizing PG&E Energy Trading-Power, L.P to export electric energy to Mexico. EA-167 PG&E Energy ...

  13. EA-168-B PG&E Energy Trading-Power, L.P | Department of Energy

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

    -B PG&E Energy Trading-Power, L.P EA-168-B PG&E Energy Trading-Power, L.P Order authorizing PG&E Energy Trading-Power, L.P to export electric energy to Canada. EA-168-B PG&E Energy ...

  14. EA-167-A PG&E Energy Trading-Power, L.P | Department of Energy

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

    -A PG&E Energy Trading-Power, L.P EA-167-A PG&E Energy Trading-Power, L.P Order authorizing PG&E Energy Trading-Power, L.P to export electric energy to Mexico. EA-167-A PG&E Energy ...

  15. EA-168 PG&E Energy Trading-Power, L.P | Department of Energy

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

    EA-168 PG&E Energy Trading-Power, L.P EA-168 PG&E Energy Trading-Power, L.P Order authorizing PG&E Energy Trading-Power, L.P to export electric energy to Canada. EA-168 PG&E Energy ...

  16. QER- Comment of Plains All American Pipeline, L.P.

    Energy.gov [DOE]

    To: Members of the Quadrennial Energy Review Task Force Secretariat and Energy Policy and Systems Analysis Staff, U.S. Department of Energy Enclosed please find comments submitted on behalf of Plains All American Pipeline, L.P. for the record of the QER’s August 21, 2014 Infrastructure Siting and Permitting Meeting in Cheyenne, WY. Feel free to contact me if you need anything further regarding this communication.

  17. RELAP5/MOD2 assessment, OECD-LOFT small break experiment LP-SB-03

    SciTech Connect (OSTI)

    Guntay, S. )

    1990-04-01

    An analysis of the experimental results and post-test calculations using RELAP5/MOD2 carried out for OECD-LOFT small break experiment LP-SB-3 are presented. Experiment LP-SB-3 was conducted on March 5, 1984 in Loss-of-Fluid Test (LOFT) facility located at the Idaho National Engineering Laboratory (INEL). The experiment simulated a small cold leg break, with concurrent loss of high pressure injection system, and cooldown and recovery by feed and bleed of the steam generator secondary side and accumulator injection, respectively. The analysis was under taken as a part of a program at EIR aimed at developing experience in using the latest generation of best estimate Loss of Coolant Accident (LOCA) analysis computer codes, and to improve understanding of Small Break LOCA transients and as well as a part of a program aimed at assessing the RELAP5/MOD2 code. The latest available version (Cycle 33 to 36.1) of the code was used. The particular test selected for the analysis included several phenomena potentially relevant to any PWR plant operation in Switzerland. This report documents a short post-test analysis of the experiment emphasizing the results of additional analysis performed during the course of this task. RELAP5/MOD2 input model and results of the post-test calculation are documented. Included in the report are the results of a sensitivity analysis which show the predicted thermal-hydraulic response to a different input model. 7 refs., 55 figs., 2 tabs.

  18. Terra Nitrogen Company, L.P.: Ammonia Plant Greatly Reduces Natural Gas

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

    Consumption After Energy Assessment | Department of Energy Terra Nitrogen Company, L.P.: Ammonia Plant Greatly Reduces Natural Gas Consumption After Energy Assessment Terra Nitrogen Company, L.P.: Ammonia Plant Greatly Reduces Natural Gas Consumption After Energy Assessment This case study describes how Terra Nitrogen Company saved 497,000 MMBtu and $3.5 million yearly after upgrading the steam system in its ammonia plant in Verdigris, Oklahoma. Terra Nitrogen Company, L.P.: Ammonia Plant

  19. SEMI-ANNUAL REPORTS FOR JORDAN COVE ENERGY PROJECT, L.P. - FE...

    Energy Savers

    JORDAN COVE ENERGY PROJECT, L.P. - FE DKT. NO. 11-127-LNG - ORDER 3041 SEMI-ANNUAL REPORTS FOR JORDAN COVE ENERGY PROJECT, L.P. - FE DKT. NO. 11-127-LNG - ORDER 3041 PDF icon April 2012 ...

  20. SEMI-ANNUAL REPORTS FOR JORDAN COVE LNG L.P. - FE DKT. NO. 13...

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

    JORDAN COVE LNG L.P. - FE DKT. NO. 13-141-LNG - ORDER 3412 SEMI-ANNUAL REPORTS FOR JORDAN COVE LNG L.P. - FE DKT. NO. 13-141-LNG - ORDER 3412 PDF icon October 2014 PDF icon April ...

  1. Ea-168-A PG&E Energy Trading-Power, L.P | Department of Energy

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

    Ea-168-A PG&E Energy Trading-Power, L.P Ea-168-A PG&E Energy Trading-Power, L.P Order authorizing PG&E Energy Trading-Power, L.P to export electric energy to Canada. Ea-168-A PG&E Energy Trading-Power, L.P (28.09 KB) More Documents & Publications EA-168

  2. Freeport LNG Expansion, L.P. and FLNG Liquefaction, LLC - FE Dkt. No.

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

    11-161-LNG | Department of Energy Freeport LNG Expansion, L.P. and FLNG Liquefaction, LLC - FE Dkt. No. 11-161-LNG Freeport LNG Expansion, L.P. and FLNG Liquefaction, LLC - FE Dkt. No. 11-161-LNG On November 15, 2013, the Office of Fossil Energy of the Department of Energy (DOE/FE) issued Order No. 3357 (FLEX II Conditional Order) to Freeport LNG Expansion, L.P., FLNG Liquefaction, LLC, FLNG Liquefaction 2, LLC, and FLNG Liquefaction 3, LLC (collectively, FLEX) pursuant to section 3(a) of

  3. SEMI-ANNUAL REPORTS FOR FREEPORT LNG EXPANSION L.P. & FLNG LIQUEFACTION,

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

    LLC - FE DKT. NO. 12-06-LNG - ORDER 3066 | Department of Energy EXPANSION L.P. & FLNG LIQUEFACTION, LLC - FE DKT. NO. 12-06-LNG - ORDER 3066 SEMI-ANNUAL REPORTS FOR FREEPORT LNG EXPANSION L.P. & FLNG LIQUEFACTION, LLC - FE DKT. NO. 12-06-LNG - ORDER 3066 April 2013 (1.3 MB) April 2014 (229.51 KB) October 2014 (46.03 KB) April 2015 (2.19 MB) October 2015 (2.31 MB) More Documents & Publications SEMI-ANNUAL REPORTS FOR FREEPORT LNG EXPANSION, L.P. & FLNG LIQUEFACTION, LLC - FE

  4. SEMI-ANNUAL REPORTS FOR FREEPORT LNG EXPANSION L.P. & FLNG LIQUEFACTIO...

    Energy.gov (indexed) [DOE]

    More Documents & Publications SEMI-ANNUAL REPORTS FOR FREEPORT LNG EXPANSION, L.P. & FLNG LIQUEFACTION, LLC - FE DKT. NOs. 12-06-LNG, 10-161-LNG and 11-161-LNG (Order Nos. 3066, ...

  5. Freeport LNG Expansion, L.P. and FLNG Liquefaction, LLC - FE...

    Energy.gov (indexed) [DOE]

    (FLEX II Conditional Order) to Freeport LNG Expansion, L.P., FLNG Liquefaction, LLC, ... Order 3357-B - Final Opinion and Order Granting LNG Export Authorization (704.57 KB) More ...

  6. Terra Nitrogen Company, L.P.: Ammonia Plant Greatly Reduces Natural...

    Energy.gov (indexed) [DOE]

    Terra Nitrogen Company, L.P.: Ammonia Plant Greatly Reduces Natural Gas Consumption After Energy Assessment (October 2007) (497.87 KB) More Documents & Publications J.R. Simplot: ...

  7. Flint Hills Resources, LP- FE Dkt. No. 15-168-LNG

    Energy.gov [DOE]

    The Office of Fossil Energy (FE) of the Department of Energy (DOE) gives notice of receipt of an application, filed on November 5, 2015, by Flint Hills Resources, LP (Flint Hills), requesting long...

  8. 1,"Union Power Partners LP","Natural gas","Union Power Partners LP",2020

    U.S. Energy Information Administration (EIA) (indexed site)

    Arkansas" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Union Power Partners LP","Natural gas","Union Power Partners LP",2020 2,"Arkansas Nuclear One","Nuclear","Entergy Arkansas Inc",1819.6 3,"Independence Steam Electric Station","Coal","Entergy Arkansas Inc",1680.5 4,"White Bluff","Coal","Entergy

  9. Laboratory Policy (LP) Homepage | U.S. DOE Office of Science (SC)

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

    Home Laboratory Policy (LP) LP Home About Laboratory Appraisal Process Laboratory Planning Process Laboratory Directed Research and Development (LDRD) Management & Operating (M&O) Contracts Technology Transfer Strategic Partnership Projects (SPP) Contact Information Laboratory Policy U.S. Department of Energy SC-32/Forrestal Building 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-5447 F: (202) 586-3119 More Information » The Department of Energy National Laboratories The

  10. Independent Oversight Inspection, Stanford Linear Accelerator...

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

    Safety, and Health Programs at the Stanford Linear Accelerator Center This report provides the results of an inspection of the environment, safety, and health programs at the ...

  11. LINEAR ACCELERATOR

    DOE Patents [OSTI]

    Christofilos, N.C.; Polk, I.J.

    1959-02-17

    Improvements in linear particle accelerators are described. A drift tube system for a linear ion accelerator reduces gap capacity between adjacent drift tube ends. This is accomplished by reducing the ratio of the diameter of the drift tube to the diameter of the resonant cavity. Concentration of magnetic field intensity at the longitudinal midpoint of the external sunface of each drift tube is reduced by increasing the external drift tube diameter at the longitudinal center region.

  12. Linear Accelerator

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

    Linear Accelerator (LINAC) The core of the LANSCE facility is one of the nation's most powerful proton linear accelerators or LINAC. The LINAC at LANSCE has served the nation since 1972, providing the beam current required by all the experimental areas that support NNSA-DP and other DOE missions. The LINAC's capability to reliably deliver beam current is the key to the LANSCE's ability to do research-and thus the key to meeting NNSA and DOE mission deliverables. The LANSCE Accelerator The LANSCE

  13. Microsoft Word - 4.24.13 Final LP Testimony

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

    technology vehicles that would help automobile manufacturers meet more stringent CAFE standards, create jobs, and reduce the nation's dependence on oil. The ATVM Program...

  14. Order 3331-A: Dominion Cove Point LNG, LP - Dk. No. 11-128-LNG |

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

    Department of Energy 331-A: Dominion Cove Point LNG, LP - Dk. No. 11-128-LNG Order 3331-A: Dominion Cove Point LNG, LP - Dk. No. 11-128-LNG FINAL ORDER AND OPINION GRANTING LONG-TERM MULTI-CONTRACT AUTHORIZATION TO EXPORT LIQUEFIED NATURAL GAS BY VESSEL FROM THE DOMINION COVE POINT LNG TERMINAL IN CALVERT COUNTY, MARYLAND TO NON-FREE TRADE AGREEMENT NATIONS Based on a review of the complete record and for the reasons set forth below, DOE/FE has concluded that the opponents of the Dominion

  15. LINEAR ACCELERATOR

    DOE Patents [OSTI]

    Colgate, S.A.

    1958-05-27

    An improvement is presented in linear accelerators for charged particles with respect to the stable focusing of the particle beam. The improvement consists of providing a radial electric field transverse to the accelerating electric fields and angularly introducing the beam of particles in the field. The results of the foregoing is to achieve a beam which spirals about the axis of the acceleration path. The combination of the electric fields and angular motion of the particles cooperate to provide a stable and focused particle beam.

  16. Freeport LNG Expansion, L.P., FLNG Liquefaction, LLC, FLNG Liquefactio...

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

    ...P., FLNG Liquefaction, LLC, FLNG Liquefaction 2, LLC and FLNG Liquefaction 3, LLC - 14-005-CIC; 10-160-LNG; 10-161-LNG, 11-161-LNG and 12-06-LNG Freeport LNG Expansion, L.P., FLNG ...

  17. Single spin asymmetries in lp{yields}hX processes: A test of factorization

    SciTech Connect (OSTI)

    Anselmino, M.; Boglione, M.; Prokudin, A.; D'Alesio, U.; Melis, S.; Murgia, F.

    2010-02-01

    Predictions for the transverse single spin asymmetry (SSA), A{sub N}, are given for the inclusive processes lp{sup {up_arrow}{yields}h}X and lp{sup {up_arrow}{yields}j}et+X, which could be measured in operating or future experiments. These estimates are based on the Sivers distributions and the Collins fragmentation functions which fit the azimuthal asymmetries measured in semi-inclusive deep inelastic scattering (SIDIS) processes (lp{sup {up_arrow}{yields}l'}hX). The factorization in terms of transverse momentum dependent distribution and fragmentation functions (TMD factorization)--which supplies the theoretical framework in which SIDIS azimuthal asymmetries are analyzed--is assumed to hold also for the lp{yields}hX inclusive process at large P{sub T}. A measurement of A{sub N} would then provide a direct test of the validity of the TMD factorization in this case and would have important consequences for the study and understanding of SSAs in pp{sup {up_arrow}{yields}h}X processes.

  18. Independent Oversight Inspection, Stanford Linear Accelerator Center -

    Office of Environmental Management (EM)

    January 2007 | Department of Energy Stanford Linear Accelerator Center - January 2007 Independent Oversight Inspection, Stanford Linear Accelerator Center - January 2007 January 2007 Inspection of Environment, Safety, and Health Programs at the Stanford Linear Accelerator Center This report provides the results of an inspection of the environment, safety, and health programs at the Department of Energy's (DOE) Stanford Linear Accelerator Center. The inspection was conducted during October

  19. SEMI-ANNUAL REPORTS FOR JORDAN COVE LNG L.P. - FE DKT. NO. 13-141-LNG -

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

    ORDER 3412 | Department of Energy JORDAN COVE LNG L.P. - FE DKT. NO. 13-141-LNG - ORDER 3412 SEMI-ANNUAL REPORTS FOR JORDAN COVE LNG L.P. - FE DKT. NO. 13-141-LNG - ORDER 3412 October 2014 (297.15 KB) April 2015 (85.45 KB) October 2015 (80.33 KB) April 2016 (88.23 KB) October 2016 (76.49 KB) More Documents & Publications SEMI-ANNUAL REPORTS FOR JORDAN COVE ENERGY FE DKT. NO. 12-32-LNG - ORDER 3413 SEMI-ANNUAL REPORTS FOR JORDAN COVE ENERGY PROJECT, L.P. - FE DKT. NO. 11-127-LNG - ORDER

  20. DOE CALiPER Program, Report 21.2: Linear (T8) LED Lamp Performance in Five Types of Recessed Troffers

    SciTech Connect (OSTI)

    Miller, Naomi J.; Perrin, Tess E.; Royer, Michael P.; Wilkerson, Andrea M.; Beeson, Tracy A.

    2014-05-20

    Although lensed troffers are numerous, there are many other types of optical systems as well. This report looked at the performance of three linear (T8) LED lamps chosen primarily based on their luminous intensity distributions (narrow, medium, and wide beam angles) as well as a benchmark fluorescent lamp in five different troffer types. Also included are the results of a subjective evaluation. Results show that linear (T8) LED lamps can improve luminaire efficiency in K12-lensed and parabolic-louvered troffers, effect little change in volumetric and high-performance diffuse-lensed type luminaires, but reduce efficiency in recessed indirect troffers. These changes can be accompanied by visual appearance and visual comfort consequences, especially when LED lamps with clear lenses and narrow distributions are installed. Linear (T8) LED lamps with diffuse apertures exhibited wider beam angles, performed more similarly to fluorescent lamps, and received better ratings from observers. Guidance is provided on which luminaires are the best candidates for retrofitting with linear (T8) LED lamps.

  1. SEMI-ANNUAL REPORTS FOR FREEPORT LNG EXPANSION, L.P. & FLNG LIQUEFACTION,

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

    LLC - FE DKT. NOs. 12-06-LNG, 10-161-LNG and 11-161-LNG (Order Nos. 3066, 3282 and 3357) | Department of Energy EXPANSION, L.P. & FLNG LIQUEFACTION, LLC - FE DKT. NOs. 12-06-LNG, 10-161-LNG and 11-161-LNG (Order Nos. 3066, 3282 and 3357) SEMI-ANNUAL REPORTS FOR FREEPORT LNG EXPANSION, L.P. & FLNG LIQUEFACTION, LLC - FE DKT. NOs. 12-06-LNG, 10-161-LNG and 11-161-LNG (Order Nos. 3066, 3282 and 3357) April 2014 (229.51 KB) October 2014 (46.03 KB) April 2015 (2.19 MB) October 2015 (2.31

  2. Record of Categorical Exclusion (CS) Determination, Office of Electricity Delivery and Energy Reliability (OE): EA-368 Brookfield Energy Marketing LP

    Energy.gov [DOE]

    Record of Categorical Exclusion (CS) Determination, Office of Electricity Delivery and Energy Reliability (OE):  Application from Brookfield Energy Marketing LP to export electric energy to CanadaA

  3. Programming

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

    Programming Programming Compiling and linking programs on Euclid. Compiling Codes How to compile and link MPI codes on Euclid. Read More » Using the ACML Math Library How to compile and link a code with the ACML library and include the $ACML environment variable. Read More » Process Limits The hard and soft process limits are listed. Read More » Last edited: 2016-04-29 11:35:11

  4. Programming

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

    Programming Programming Compiling Codes on Hopper Cray provides a convenient set of wrapper commands that should be used in almost all cases for compiling and linking parallel programs. Invoking the wrappers will automatically link codes with the MPI libraries and other Cray system software libraries. All the MPI and Cray system include directories are also transparently imported. This page shows examples of how to compile codes on Franklin and Hopper. Read More » Shared and Dynamic Libraries

  5. Programming

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

    Programming Programming The genepool system has a diverse set of software development tools and a rich environment for delivering their functionality to users. Genepool has adopted a modular system which has been adapted from the Programming Environments similar to those provided on the Cray systems at NERSC. The Programming Environment is managed by a meta-module named similar to "PrgEnv-gnu/4.6". The "gnu" indicates that it is providing the GNU environment, principally GCC,

  6. Programming

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

    Storage & File Systems Application Performance Data & Analytics Job Logs & Statistics ... Each programming environment contains the full set of compatible compilers and libraries. ...

  7. Positrons for linear colliders

    SciTech Connect (OSTI)

    Ecklund, S.

    1987-11-01

    The requirements of a positron source for a linear collider are briefly reviewed, followed by methods of positron production and production of photons by electromagnetic cascade showers. Cross sections for the electromagnetic cascade shower processes of positron-electron pair production and Compton scattering are compared. A program used for Monte Carlo analysis of electromagnetic cascades is briefly discussed, and positron distributions obtained from several runs of the program are discussed. Photons from synchrotron radiation and from channeling are also mentioned briefly, as well as positron collection, transverse focusing techniques, and longitudinal capture. Computer ray tracing is then briefly discussed, followed by space-charge effects and thermal heating and stress due to showers. (LEW)

  8. Programming

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

    using MPI and OpenMP on NERSC systems, the same does not always exist for other supported parallel programming models such as UPC or Chapel. At the same time, we know that these...

  9. Programming

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

    Programming Programming Compiling Codes There are three compiler suites available on Carver: Portland Group (PGI), Intel, and GCC. The PGI compilers are the default, to provide compatibility with other NERSC platforms. Read More » Using MKL Intel's Math Kernel Library (MKL) is a library of highly optimized, extensively threaded math routines optimized for Intel processors. Core math functions include BLAS, LAPACK, ScaLAPACK, Sparse Solvers, Fast Fourier Transforms, Vector Math, and more. It is

  10. Application to Export Electric Energy OE Docket No. EA-328 RBC Energy Services L.P.: Federal Register Notice Volume 72, No. 158- Aug. 16, 2007

    Energy.gov [DOE]

    Application from RBC Energy Services L.P. to export electric energy to Canada. Federal Register Notice Vol 72 No 158

  11. Application to Export Electric Energy OE Docket No. EA-359 Louis Dreyfus Energy Services L.P.: Federal Register Notice Volume 74, No. 162- Aug. 24, 2009

    Energy.gov [DOE]

    Application from Louis Dreyfus Energy Services L.P. to export electric energy to Canada. Federal Register Notice Volume 74 No 162

  12. Effect of nicotine on melanogenesis and antioxidant status in HEMn-LP melanocytes

    SciTech Connect (OSTI)

    Delijewski, Marcin; Beberok, Artur; Otręba, Michał; Wrześniok, Dorota; Rok, Jakub; Buszman, Ewa

    2014-10-15

    Nicotine is a natural ingredient of tobacco plants and is responsible for the addictive properties of tobacco. Nowadays nicotine is also commonly used as a form of smoking cessation therapy. It is suggested that nicotine may be accumulated in human tissues containing melanin. This may in turn affect biochemical processes in human cells producing melanin. The aim of this study was to examine the effect of nicotine on melanogenesis and antioxidant status in cultured normal human melanocytes HEMn-LP. Nicotine induced concentration-dependent loss in melanocytes viability. The value of EC{sub 50} was determined to be 7.43 mM. Nicotine inhibited a melanization process in human light pigmented melanocytes and caused alterations of antioxidant defense system. Significant changes in cellular antioxidant enzymes: superoxide dismutase and catalase activities and in hydrogen peroxide content were stated. The obtained results may explain a potential influence of nicotine on biochemical processes in melanocytes in vivo during long term exposition to nicotine. - Graphical abstract: Nicotine inhibits melanogenesis and induces oxidative stress in HEMn-LP melanocytes. - Highlights: • Nicotine induces concentration-dependent loss in melanocytes viability. • Nicotine in non-cytotoxic concentrations inhibits melanogenesis. • Nicotine in higher concentrations induces oxidative stress.

  13. OFF-THE-RECORD COMMUNICATION FOR JORDAN COVE ENERGY PROJECT, L.P., FE DKT. NO. 12-32-LNG

    Energy.gov [DOE]

    Posting of Off-the-Record CommunicationThe documents linked below were sent to the Department of Energy (DOE) in reference to the Jordan Cove Energy Project, L.P., FE Dkt. No. 12-32-LNG proceeding....

  14. Linear induction accelerator parameter options

    SciTech Connect (OSTI)

    Birx, D.L.; Caporaso, G.J.; Reginato, L.L.

    1986-04-21

    The principal undertaking of the Beam Research Program over the past decade has been the investigation of propagating intense self-focused beams. Recently, the major activity of the program has shifted toward the investigation of converting high quality electron beams directly to laser radiation. During the early years of the program, accelerator development was directed toward the generation of very high current (>10 kA), high energy beams (>50 MeV). In its new mission, the program has shifted the emphasis toward the production of lower current beams (>3 kA) with high brightness (>10/sup 6/ A/(rad-cm)/sup 2/) at very high average power levels. In efforts to produce these intense beams, the state of the art of linear induction accelerators (LIA) has been advanced to the point of satisfying not only the current requirements but also future national needs.

  15. Development of a methodology for conducting an integrated HRA/PRA --. Task 1, An assessment of human reliability influences during LP&S conditions PWRs

    SciTech Connect (OSTI)

    Luckas, W.J.; Barriere, M.T.; Brown, W.S.; Wreathall, J.; Cooper, S.E.

    1993-06-01

    During Low Power and Shutdown (LP&S) conditions in a nuclear power plant (i.e., when the reactor is subcritical or at less than 10--15% power), human interactions with the plant`s systems will be more frequent and more direct. Control is typically not mediated by automation, and there are fewer protective systems available. Therefore, an assessment of LP&S related risk should include a greater emphasis on human reliability than such an assessment made for power operation conditions. In order to properly account for the increase in human interaction and thus be able to perform a probabilistic risk assessment (PRA) applicable to operations during LP&S, it is important that a comprehensive human reliability assessment (HRA) methodology be developed and integrated into the LP&S PRA. The tasks comprising the comprehensive HRA methodology development are as follows: (1) identification of the human reliability related influences and associated human actions during LP&S, (2) identification of potentially important LP&S related human actions and appropriate HRA framework and quantification methods, and (3) incorporation and coordination of methodology development with other integrated PRA/HRA efforts. This paper describes the first task, i.e., the assessment of human reliability influences and any associated human actions during LP&S conditions for a pressurized water reactor (PWR).

  16. Fault tolerant linear actuator

    DOE Patents [OSTI]

    Tesar, Delbert

    2004-09-14

    In varying embodiments, the fault tolerant linear actuator of the present invention is a new and improved linear actuator with fault tolerance and positional control that may incorporate velocity summing, force summing, or a combination of the two. In one embodiment, the invention offers a velocity summing arrangement with a differential gear between two prime movers driving a cage, which then drives a linear spindle screw transmission. Other embodiments feature two prime movers driving separate linear spindle screw transmissions, one internal and one external, in a totally concentric and compact integrated module.

  17. Linear phase compressive filter

    DOE Patents [OSTI]

    McEwan, Thomas E.

    1995-01-01

    A phase linear filter for soliton suppression is in the form of a laddered series of stages of non-commensurate low pass filters with each low pass filter having a series coupled inductance (L) and a reverse biased, voltage dependent varactor diode, to ground which acts as a variable capacitance (C). L and C values are set to levels which correspond to a linear or conventional phase linear filter. Inductance is mapped directly from that of an equivalent nonlinear transmission line and capacitance is mapped from the linear case using a large signal equivalent of a nonlinear transmission line.

  18. Linear phase compressive filter

    DOE Patents [OSTI]

    McEwan, T.E.

    1995-06-06

    A phase linear filter for soliton suppression is in the form of a laddered series of stages of non-commensurate low pass filters with each low pass filter having a series coupled inductance (L) and a reverse biased, voltage dependent varactor diode, to ground which acts as a variable capacitance (C). L and C values are set to levels which correspond to a linear or conventional phase linear filter. Inductance is mapped directly from that of an equivalent nonlinear transmission line and capacitance is mapped from the linear case using a large signal equivalent of a nonlinear transmission line. 2 figs.

  19. Snapshot: Linear Lamps (TLEDs)

    Energy.gov [DOE]

    A report using LED Lighting Facts data to examine the current state of the market for linear fluorescent lamps. (8 pages, July 2016)

  20. Focusing in Linear Accelerators

    DOE R&D Accomplishments [OSTI]

    McMillan, E. M.

    1950-08-24

    Review of the theory of focusing in linear accelerators with comments on the incompatibility of phase stability and first-order focusing in a simple accelerator.

  1. Freeport LNG Development, L.P. (Freeport LNG)- Blanket Authorization to Export Previously Imported LNG- FE Dkt. No. 15-103-LNG

    Energy.gov [DOE]

    The Office of Fossil Energy gives notice of receipt of an Application filed June 25, 2015 by Freeport LNG Development, L.P. (Freeport LNG), requesting blanket authorization to export liquefied...

  2. Linearly polarized fiber amplifier

    DOE Patents [OSTI]

    Kliner, Dahv A.; Koplow, Jeffery P.

    2004-11-30

    Optically pumped rare-earth-doped polarizing fibers exhibit significantly higher gain for one linear polarization state than for the orthogonal state. Such a fiber can be used to construct a single-polarization fiber laser, amplifier, or amplified-spontaneous-emission (ASE) source without the need for additional optical components to obtain stable, linearly polarized operation.

  3. Emission factors for domestic use of L.P. gas in the metropolitan area of Mexico City

    SciTech Connect (OSTI)

    Molina, M.M.; Schifter, I.; Ontiveros, L.E.; Salinas, A.; Moreno, S.; Melgarejo, L.A.; Molina, R.; Krueger, B.

    1998-12-31

    One of the main problems found in air pollution in the Metropolitan Area of Mexico City (MAMC) is the presence of high concentrations of ozone at ground level in the atmosphere. The official Mexican standard for ozone concentration in the air (0.11 ppm, one hour, once every 3 years) has been exceeded more than 300 days per year. Ozone is formed due to the emissions of nitrogen oxides and hydrocarbons originated from either combustion processes or vapors emanating from fuel handling operations. The results of an evaluation of several domestic devices like stoves and water heaters with L.P. gas as fuel are presented. A method for the evaluation of hydrocarbon emission was developed. A prototype of domestic installation was constructed. The prototype includes L.P. gas tank, domestic stove, water heater, piping and instrumentation. Several combinations of stoves and water heaters were evaluated. The sampling and analysis of hydrocarbons were performed using laboratory equipment originally designed for the evaluation of combustion and evaporative emissions in automobiles: a SHED camera (sealed room equipped with an hydrocarbon analyzer) was used to measure leaks in the prototype of domestic installation and a Constant Volume Sampler (CVS) for the measurement of incomplete combustion emissions. Emission factors were developed for each domestic installation.

  4. PC Basic Linear Algebra Subroutines

    Energy Science and Technology Software Center (OSTI)

    1992-03-09

    PC-BLAS is a highly optimized version of the Basic Linear Algebra Subprograms (BLAS), a standardized set of thirty-eight routines that perform low-level operations on vectors of numbers in single and double-precision real and complex arithmetic. Routines are included to find the index of the largest component of a vector, apply a Givens or modified Givens rotation, multiply a vector by a constant, determine the Euclidean length, perform a dot product, swap and copy vectors, andmore » find the norm of a vector. The BLAS have been carefully written to minimize numerical problems such as loss of precision and underflow and are designed so that the computation is independent of the interface with the calling program. This independence is achieved through judicious use of Assembly language macros. Interfaces are provided for Lahey Fortran 77, Microsoft Fortran 77, and Ryan-McFarland IBM Professional Fortran.« less

  5. The young and bright Type Ia supernova ASASSN-14lp: Discovery, early-time observations, first-light time, distance to NGC 4666, and progenitor constraints

    DOE PAGES-Beta [OSTI]

    Shappee, B. J.; Piro, A. L.; Holoien, T. W. -S.; Prieto, J. L.; Contreras, C.; Itagaki, K.; Burns, C. R.; Kochanek, C. S.; Stanek, K. Z.; Alper, E.; et al

    2016-07-27

    On 2014 December 9.61, the All-sky Automated Survey for SuperNovae (ASAS-SN or "Assassin") discovered ASASSN-14lp just ~2 days after first light using a global array of 14 cm diameter telescopes. ASASSN-14lp went on to become a bright supernova (V = 11.94 mag), second only to SN 2014J for the year. We present prediscovery photometry (with a detection less than a day after first light) and ultraviolet through near-infrared photometric and spectroscopic data covering the rise and fall of ASASSN-14lp for more than 100 days. We find that ASASSN-14lp had a broad light curve (more » $${\\rm{\\Delta }}{m}_{15}(B)=0.80\\pm 0.05$$), a B-band maximum at 2457015.82 ± 0.03, a rise time of $${16.94}_{-0.10}^{+0.11}$$ days, and moderate host-galaxy extinction ($$E{(B-V)}_{\\mathrm{host}}=0.33\\pm 0.06$$). Using ASASSN-14lp, we derive a distance modulus for NGC 4666 of $$\\mu =30.8\\pm 0.2$$, corresponding to a distance of 14.7 ± 1.5 Mpc. However, adding ASASSN-14lp to the calibrating sample of Type Ia supernovae still requires an independent distance to the host galaxy. Lastly, using our early-time photometric and spectroscopic observations, we rule out red giant secondaries and, assuming a favorable viewing angle and explosion time, any nondegenerate companion larger than 0.34 $${R}_{\\odot }$$.« less

  6. Combustion powered linear actuator

    DOE Patents [OSTI]

    Fischer, Gary J.

    2007-09-04

    The present invention provides robotic vehicles having wheeled and hopping mobilities that are capable of traversing (e.g. by hopping over) obstacles that are large in size relative to the robot and, are capable of operation in unpredictable terrain over long range. The present invention further provides combustion powered linear actuators, which can include latching mechanisms to facilitate pressurized fueling of the actuators, as can be used to provide wheeled vehicles with a hopping mobility.

  7. Linear induction accelerator

    SciTech Connect (OSTI)

    Bosamykin, V.S.; Pavlovskiy, A.I.

    1984-03-01

    A linear induction accelerator of charged particles, containing inductors and an acceleration circuit, characterized by the fact that, for the purpose of increasing the power of the accelerator, each inductor is made in the form of a toroidal line with distributed parameters, from one end of which in the gap of the line a ring commutator is included, and from the other end of the ine a resistor is hooked up, is described.

  8. Linear induction accelerator

    DOE Patents [OSTI]

    Buttram, M.T.; Ginn, J.W.

    1988-06-21

    A linear induction accelerator includes a plurality of adder cavities arranged in a series and provided in a structure which is evacuated so that a vacuum inductance is provided between each adder cavity and the structure. An energy storage system for the adder cavities includes a pulsed current source and a respective plurality of bipolar converting networks connected thereto. The bipolar high-voltage, high-repetition-rate square pulse train sets and resets the cavities. 4 figs.

  9. The Stanford Linear Collider

    SciTech Connect (OSTI)

    Emma, P.

    1995-06-01

    The Stanford Linear Collider (SLC) is the first and only high-energy e{sup +}e{sup {minus}} linear collider in the world. Its most remarkable features are high intensity, submicron sized, polarized (e{sup {minus}}) beams at a single interaction point. The main challenges posed by these unique characteristics include machine-wide emittance preservation, consistent high intensity operation, polarized electron production and transport, and the achievement of a high degree of beam stability on all time scales. In addition to serving as an important machine for the study of Z{sup 0} boson production and decay using polarized beams, the SLC is also an indispensable source of hands-on experience for future linear colliders. Each new year of operation has been highlighted with a marked improvement in performance. The most significant improvements for the 1994-95 run include new low impedance vacuum chambers for the damping rings, an upgrade to the optics and diagnostics of the final focus systems, and a higher degree of polarization from the electron source. As a result, the average luminosity has nearly doubled over the previous year with peaks approaching 10{sup 30} cm{sup {minus}2}s{sup {minus}1} and an 80% electron polarization at the interaction point. These developments as well as the remaining identifiable performance limitations will be discussed.

  10. File:Wind-farm-policy-simulation lp.pdf | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    metadata was last modified 08:57, 7 August 2013 Software used Acrobat PDFMaker 9.0 for Word Conversion program Adobe PDF Library 9.0 Encrypted no Page size 612 x 792 pts (letter)...

  11. File:Tip-top-tip-speed-lp-HS.pdf | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    metadata was last modified 08:54, 7 August 2013 Software used Acrobat PDFMaker 9.0 for Word Conversion program Adobe PDF Library 9.0 Encrypted no Page size 612 x 792 pts (letter)...

  12. File:Power-in-practice-and-theory-lp-HS.pdf | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    metadata was last modified 08:54, 7 August 2013 Software used Acrobat PDFMaker 9.0 for Word Conversion program Adobe PDF Library 9.0 Encrypted no Page size 612 x 792 pts (letter)...

  13. File:What-speed-do-we-need-lp-HS.pdf | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    metadata was last modified 08:56, 7 August 2013 Software used Acrobat PDFMaker 9.0 for Word Conversion program Adobe PDF Library 9.0 Encrypted no Page size 612 x 792 pts (letter)...

  14. File:Tip-top-tip-speed-lp.pdf | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    metadata was last modified 08:54, 7 August 2013 Software used Acrobat PDFMaker 9.0 for Word Conversion program Adobe PDF Library 9.0 Encrypted no Page size 612 x 792 pts (letter)...

  15. File:When-the-wind-doesn't-blow-lp.pdf | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    metadata was last modified 08:57, 7 August 2013 Software used Acrobat PDFMaker 9.0 for Word Conversion program Adobe PDF Library 9.0 Encrypted no Page size 612 x 792 pts (letter)...

  16. File:Wind-farm-policy-simulation lp-HS.pdf | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    metadata was last modified 08:57, 7 August 2013 Software used Acrobat PDFMaker 9.0 for Word Conversion program Adobe PDF Library 9.0 Encrypted no Page size 612 x 792 pts (letter)...

  17. File:When-the-wind-doesn't-blow-lp-HS.pdf | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    metadata was last modified 08:57, 7 August 2013 Software used Acrobat PDFMaker 9.0 for Word Conversion program Adobe PDF Library 9.0 Encrypted no Page size 612 x 792 pts (letter)...

  18. File:Power-in-practice-and-theory-lp.pdf | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    metadata was last modified 08:54, 7 August 2013 Software used Acrobat PDFMaker 9.0 for Word Conversion program Adobe PDF Library 9.0 Encrypted no Page size 612 x 792 pts (letter)...

  19. File:Modeling-power-efficiency-and-tip-speed-ratio-lp-HS.pdf...

    Open Energy Information (Open El) [EERE & EIA]

    metadata was last modified 08:55, 7 August 2013 Software used Acrobat PDFMaker 9.0 for Word Conversion program Adobe PDF Library 9.0 Encrypted no Page size 612 x 792 pts (letter)...

  20. File:What-speed-do-we-need-lp.pdf | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    metadata was last modified 08:56, 7 August 2013 Software used Acrobat PDFMaker 9.0 for Word Conversion program Adobe PDF Library 9.0 Encrypted no Page size 612 x 792 pts (letter)...

  1. File:Modeling-power-efficiency-and-tip-speed-ratio-lp.pdf | Open...

    Open Energy Information (Open El) [EERE & EIA]

    metadata was last modified 08:55, 7 August 2013 Software used Acrobat PDFMaker 9.0 for Word Conversion program Adobe PDF Library 9.0 Encrypted no Page size 612 x 792 pts (letter)...

  2. Linear Fresnel | Department of Energy

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

    Concentrating Solar Power » Linear Fresnel Linear Fresnel DOE funds solar research and development (R&D) in linear Fresnel systems as one of four CSP technologies aiming to meet the goals of the SunShot Initiative. Linear Fresnel systems, which are a type of linear concentrator, are active in Germany, Spain, Australia, India, and the United States. The SunShot Initiative funds R&D on linear Fresnel systems and related aspects within the industry, national laboratories and universities

  3. Non Linear Conjugate Gradient

    Energy Science and Technology Software Center (OSTI)

    2006-11-17

    Software that simulates and inverts electromagnetic field data for subsurface electrical properties (electrical conductivity) of geological media. The software treats data produced by a time harmonic source field excitation arising from the following antenna geometery: loops and grounded bipoles, as well as point electric and magnetic dioples. The inversion process is carried out using a non-linear conjugate gradient optimization scheme, which minimizes the misfit between field data and model data using a least squares criteria.more » The software is an upgrade from the code NLCGCS_MP ver 1.0. The upgrade includes the following components: Incorporation of new 1 D field sourcing routines to more accurately simulate the 3D electromagnetic field for arbitrary geologic& media, treatment for generalized finite length transmitting antenna geometry (antennas with vertical and horizontal component directions). In addition, the software has been upgraded to treat transverse anisotropy in electrical conductivity.« less

  4. HEAVY ION LINEAR ACCELERATOR

    DOE Patents [OSTI]

    Van Atta, C.M.; Beringer, R.; Smith, L.

    1959-01-01

    A linear accelerator of heavy ions is described. The basic contributions of the invention consist of a method and apparatus for obtaining high energy particles of an element with an increased charge-to-mass ratio. The method comprises the steps of ionizing the atoms of an element, accelerating the resultant ions to an energy substantially equal to one Mev per nucleon, stripping orbital electrons from the accelerated ions by passing the ions through a curtain of elemental vapor disposed transversely of the path of the ions to provide a second charge-to-mass ratio, and finally accelerating the resultant stripped ions to a final energy of at least ten Mev per nucleon.

  5. Winding for linear pump

    DOE Patents [OSTI]

    Kliman, G.B.; Brynsvold, G.V.; Jahns, T.M.

    1989-08-22

    A winding and method of winding for a submersible linear pump for pumping liquid sodium are disclosed. The pump includes a stator having a central cylindrical duct preferably vertically aligned. The central vertical duct is surrounded by a system of coils in slots. These slots are interleaved with magnetic flux conducting elements, these magnetic flux conducting elements forming a continuous magnetic field conduction path along the stator. The central duct has placed therein a cylindrical magnetic conducting core, this core having a cylindrical diameter less than the diameter of the cylindrical duct. The core once placed to the duct defines a cylindrical interstitial pumping volume of the pump. This cylindrical interstitial pumping volume preferably defines an inlet at the bottom of the pump, and an outlet at the top of the pump. Pump operation occurs by static windings in the outer stator sequentially conveying toroidal fields from the pump inlet at the bottom of the pump to the pump outlet at the top of the pump. The winding apparatus and method of winding disclosed uses multiple slots per pole per phase with parallel winding legs on each phase equal to or less than the number of slots per pole per phase. The slot sequence per pole per phase is chosen to equalize the variations in flux density of the pump sodium as it passes into the pump at the pump inlet with little or no flux and acquires magnetic flux in passage through the pump to the pump outlet. 4 figs.

  6. Winding for linear pump

    DOE Patents [OSTI]

    Kliman, Gerald B.; Brynsvold, Glen V.; Jahns, Thomas M.

    1989-01-01

    A winding and method of winding for a submersible linear pump for pumping liquid sodium is disclosed. The pump includes a stator having a central cylindrical duct preferably vertically aligned. The central vertical duct is surrounded by a system of coils in slots. These slots are interleaved with magnetic flux conducting elements, these magnetic flux conducting elements forming a continuous magnetic field conduction path along the stator. The central duct has placed therein a cylindrical magnetic conducting core, this core having a cylindrical diameter less than the diameter of the cylindrical duct. The core once placed to the duct defines a cylindrical interstitial pumping volume of the pump. This cylindrical interstitial pumping volume preferably defines an inlet at the bottom of the pump, and an outlet at the top of the pump. Pump operation occurs by static windings in the outer stator sequentially conveying toroidal fields from the pump inlet at the bottom of the pump to the pump outlet at the top of the pump. The winding apparatus and method of winding disclosed uses multiple slots per pole per phase with parallel winding legs on each phase equal to or less than the number of slots per pole per phase. The slot sequence per pole per phase is chosen to equalize the variations in flux density of the pump sodium as it passes into the pump at the pump inlet with little or no flux and acquires magnetic flux in passage through the pump to the pump outlet.

  7. Berkeley Proton Linear Accelerator

    DOE R&D Accomplishments [OSTI]

    Alvarez, L. W.; Bradner, H.; Franck, J.; Gordon, H.; Gow, J. D.; Marshall, L. C.; Oppenheimer, F. F.; Panofsky, W. K. H.; Richman, C.; Woodyard, J. R.

    1953-10-13

    A linear accelerator, which increases the energy of protons from a 4 Mev Van de Graaff injector, to a final energy of 31.5 Mev, has been constructed. The accelerator consists of a cavity 40 feet long and 39 inches in diameter, excited at resonance in a longitudinal electric mode with a radio-frequency power of about 2.2 x 10{sup 6} watts peak at 202.5 mc. Acceleration is made possible by the introduction of 46 axial "drift tubes" into the cavity, which is designed such that the particles traverse the distance between the centers of successive tubes in one cycle of the r.f. power. The protons are longitudinally stable as in the synchrotron, and are stabilized transversely by the action of converging fields produced by focusing grids. The electrical cavity is constructed like an inverted airplane fuselage and is supported in a vacuum tank. Power is supplied by 9 high powered oscillators fed from a pulse generator of the artificial transmission line type.

  8. Linear induction pump

    DOE Patents [OSTI]

    Meisner, John W.; Moore, Robert M.; Bienvenue, Louis L.

    1985-03-19

    Electromagnetic linear induction pump for liquid metal which includes a unitary pump duct. The duct comprises two substantially flat parallel spaced-apart wall members, one being located above the other and two parallel opposing side members interconnecting the wall members. Located within the duct are a plurality of web members interconnecting the wall members and extending parallel to the side members whereby the wall members, side members and web members define a plurality of fluid passageways, each of the fluid passageways having substantially the same cross-sectional flow area. Attached to an outer surface of each side member is an electrically conductive end bar for the passage of an induced current therethrough. A multi-phase, electrical stator is located adjacent each of the wall members. The duct, stators, and end bars are enclosed in a housing which is provided with an inlet and outlet in fluid communication with opposite ends of the fluid passageways in the pump duct. In accordance with a preferred embodiment, the inlet and outlet includes a transition means which provides for a transition from a round cross-sectional flow path to a substantially rectangular cross-sectional flow path defined by the pump duct.

  9. Linear Collider Physics Resource Book Snowmass 2001

    SciTech Connect (OSTI)

    Ronan , M.T.

    2001-06-01

    The American particle physics community can look forward to a well-conceived and vital program of experimentation for the next ten years, using both colliders and fixed target beams to study a wide variety of pressing questions. Beyond 2010, these programs will be reaching the end of their expected lives. The CERN LHC will provide an experimental program of the first importance. But beyond the LHC, the American community needs a coherent plan. The Snowmass 2001 Workshop and the deliberations of the HEPAP subpanel offer a rare opportunity to engage the full community in planning our future for the next decade or more. A major accelerator project requires a decade from the beginning of an engineering design to the receipt of the first data. So it is now time to decide whether to begin a new accelerator project that will operate in the years soon after 2010. We believe that the world high-energy physics community needs such a project. With the great promise of discovery in physics at the next energy scale, and with the opportunity for the uncovering of profound insights, we cannot allow our field to contract to a single experimental program at a single laboratory in the world. We believe that an e{sup +}e{sup -} linear collider is an excellent choice for the next major project in high-energy physics. Applying experimental techniques very different from those used at hadron colliders, an e{sup +}e{sup -} linear collider will allow us to build on the discoveries made at the Tevatron and the LHC, and to add a level of precision and clarity that will be necessary to understand the physics of the next energy scale. It is not necessary to anticipate specific results from the hadron collider programs to argue for constructing an e{sup +}e{sup -} linear collider; in any scenario that is now discussed, physics will benefit from the new information that e{sup +}e{sup -} experiments can provide. This last point merits further emphasis. If a new accelerator could be designed and

  10. Summary of important results and SCDAP/RELAP5 analysis for OECD LOFT experiment LP-FP-2

    SciTech Connect (OSTI)

    Coryell, E.W.

    1994-04-01

    This report summarizes significant technical findings from the LP-FP-2 Experiment sponsored by the Organization of Economic Cooperation and Development (OECD). It was the second, and final, fission product experiment conducted in the Loss-of-Fluid Test (LOFT) facility at the Idaho National Engineering Laboratory. The overall technical objective of the test was to contribute to the understanding of fuel rod behavior, hydrogen generation, and fission product release, transport, and deposition during a V-sequence accident scenario that resulted in severe core damage. An 11 by 11 test bundle, comprised of 100 prepressurized fuel rods, 11 control rods, and 10 instrumented guide tubes, was surrounded by an insulating shroud and contained in a specially designed central fuel module, that was inserted into the LOFT reactor. The simulated transient was a V-sequence loss-of-coolant accident scenario featuring a pipe break in the low pressure injection system line attached to the hot leg of the LOFT broken loop piping. The transient was terminated by reflood of the reactor vessel when the outer wall shroud temperature reached 1517 K. With sustained fission power and heat from oxidation and metal-water reactions, elevated temperatures resulted in zircaloy melting, fuel liquefaction, material relocation, and the release of hydrogen, aerosols, and fission products. A description and evaluation of the major phenomena, based upon the response of on line instrumentation, analysis of fission product data, postirradiation examination of the fuel bundle, and calculations using the SCDAP/RELAP5 computer code, are presented.

  11. The TESLA superconducting linear collider

    SciTech Connect (OSTI)

    the TESLA Collaboration

    1997-03-01

    This paper summarizes the present status of the studies for a superconducting Linear Collider (TESLA). {copyright} {ital 1997 American Institute of Physics.}

  12. Freeport LNG Expansion, L.P., FLNG Liquefaction, LLC, FLNG Liquefaction 2, LLC and FLNG Liquefaction 3, LLC- 14-005-CIC; 10-160-LNG; 10-161-LNG, 11-161-LNG and 12-06-LNG

    Energy.gov [DOE]

    Application of Freeport LNG Expansion, L.P., FLNG Liquefaction, LLC, FLNG Liquefaction 2, LLC and FLNG Liquefaction 3, LLC to Transfer Control of Long-term Authorization to Export LNG to Free Trade...

  13. Linear Accelerator | Advanced Photon Source

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

    Linear Accelerator Producing brilliant x-ray beams at the APS begins with electrons emitted from a cathode heated to 1100 C. The electrons are accelerated by high-voltage...

  14. Acoustic emission linear pulse holography

    DOE Patents [OSTI]

    Collins, H.D.; Busse, L.J.; Lemon, D.K.

    1983-10-25

    This device relates to the concept of and means for performing Acoustic Emission Linear Pulse Holography, which combines the advantages of linear holographic imaging and Acoustic Emission into a single non-destructive inspection system. This unique system produces a chronological, linear holographic image of a flaw by utilizing the acoustic energy emitted during crack growth. The innovation is the concept of utilizing the crack-generated acoustic emission energy to generate a chronological series of images of a growing crack by applying linear, pulse holographic processing to the acoustic emission data. The process is implemented by placing on a structure an array of piezoelectric sensors (typically 16 or 32 of them) near the defect location. A reference sensor is placed between the defect and the array.

  15. Automating linear accelerator quality assurance

    SciTech Connect (OSTI)

    Eckhause, Tobias; Thorwarth, Ryan; Moran, Jean M.; Al-Hallaq, Hania; Farrey, Karl; Ritter, Timothy; DeMarco, John; Pawlicki, Todd; Kim, Gwe-Ya; Popple, Richard; Sharma, Vijeshwar; Park, SungYong; Perez, Mario; Booth, Jeremy T.

    2015-10-15

    Purpose: The purpose of this study was 2-fold. One purpose was to develop an automated, streamlined quality assurance (QA) program for use by multiple centers. The second purpose was to evaluate machine performance over time for multiple centers using linear accelerator (Linac) log files and electronic portal images. The authors sought to evaluate variations in Linac performance to establish as a reference for other centers. Methods: The authors developed analytical software tools for a QA program using both log files and electronic portal imaging device (EPID) measurements. The first tool is a general analysis tool which can read and visually represent data in the log file. This tool, which can be used to automatically analyze patient treatment or QA log files, examines the files for Linac deviations which exceed thresholds. The second set of tools consists of a test suite of QA fields, a standard phantom, and software to collect information from the log files on deviations from the expected values. The test suite was designed to focus on the mechanical tests of the Linac to include jaw, MLC, and collimator positions during static, IMRT, and volumetric modulated arc therapy delivery. A consortium of eight institutions delivered the test suite at monthly or weekly intervals on each Linac using a standard phantom. The behavior of various components was analyzed for eight TrueBeam Linacs. Results: For the EPID and trajectory log file analysis, all observed deviations which exceeded established thresholds for Linac behavior resulted in a beam hold off. In the absence of an interlock-triggering event, the maximum observed log file deviations between the expected and actual component positions (such as MLC leaves) varied from less than 1% to 26% of published tolerance thresholds. The maximum and standard deviations of the variations due to gantry sag, collimator angle, jaw position, and MLC positions are presented. Gantry sag among Linacs was 0.336 ± 0.072 mm. The

  16. MineSeis - A MATLAB@ GUI Program to

    Office of Scientific and Technical Information (OSTI)

    i MineSeis - A MATLAB@ GUI Program to Calculate Synthetic Seismograms from a Linear, ... The program was written with MATLAB Graphical User Interface (GUI) technique ...

  17. Giver-LP

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

    Girls of Energy Girls of Energy DOWNLOAD EBOOK: Girls of Energy Lessons and Activities DOWNLOAD EBOOK: Girls of Energy Lessons and Activities Welcome to Girls of Energy! This is a place to learn about some amazing scientists at the US Department of Energy doing exciting things and solving some pretty big challenges. We invite you to explore these pages, watch some cool videos, and download some fun activities. We hope to inspire you through the stories and personas of these exceptional women who

  18. 1,"Entergy Rhode Island State Energy LP","Natural gas","Entergy RISE",538

    U.S. Energy Information Administration (EIA) (indexed site)

    Rhode Island" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Entergy Rhode Island State Energy LP","Natural gas","Entergy RISE",538 2,"Manchester Street","Natural gas","Dominion Energy New England, LLC",447 3,"Tiverton Power Plant","Natural gas","Tiverton Power LLC",250 4,"Ocean State Power","Natural

  19. VOLUNTARY LEAVE TRANSFER PROGRAM

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

    ... Sandra LP Anderson, Stanley MA Harman, Sarah M. MA 4 6142016 Riley, Betsy A. MA Serrano, Monica A. MA Altamirano, Joelle NA Beg, Michelle F. NA Cofer, Joshua A. NA ...

  20. Belos Block Linear Solvers Package

    Energy Science and Technology Software Center (OSTI)

    2004-03-01

    Belos is an extensible and interoperable framework for large-scale, iterative methods for solving systems of linear equations with multiple right-hand sides. The motivation for this framework is to provide a generic interface to a collection of algorithms for solving large-scale linear systems. Belos is interoperable because both the matrix and vectors are considered to be opaque objects--only knowledge of the matrix and vectors via elementary operations is necessary. An implementation of Balos is accomplished viamore » the use of interfaces. One of the goals of Belos is to allow the user flexibility in specifying the data representation for the matrix and vectors and so leverage any existing software investment. The algorithms that will be included in package are Krylov-based linear solvers, like Block GMRES (Generalized Minimal RESidual) and Block CG (Conjugate-Gradient).« less

  1. LINEAR COUNT-RATE METER

    DOE Patents [OSTI]

    Henry, J.J.

    1961-09-01

    A linear count-rate meter is designed to provide a highly linear output while receiving counting rates from one cycle per second to 100,000 cycles per second. Input pulses enter a linear discriminator and then are fed to a trigger circuit which produces positive pulses of uniform width and amplitude. The trigger circuit is connected to a one-shot multivibrator. The multivibrator output pulses have a selected width. Feedback means are provided for preventing transistor saturation in the multivibrator which improves the rise and decay times of the output pulses. The multivibrator is connected to a diode-switched, constant current metering circuit. A selected constant current is switched to an averaging circuit for each pulse received, and for a time determined by the received pulse width. The average output meter current is proportional to the product of the counting rate, the constant current, and the multivibrator output pulse width.

  2. General Purpose Unfolding Program with Linear and Nonlinear Regularizations.

    Energy Science and Technology Software Center (OSTI)

    1987-05-07

    Version 00 The interpretation of several physical measurements requires the unfolding or deconvolution of the solution of Fredholm integral equations of the first kind. Examples include neutron spectroscopy with activation detectors, moderating spheres, or proton recoil measurements. LOUHI82 is designed to be applicable to a large number of physical problems and to be extended to incorporate other unfolding methods.

  3. Linear Corrugating - Final Technical Report

    SciTech Connect (OSTI)

    Lloyd Chapman

    2000-05-23

    Linear Corrugating is a process for the manufacture of corrugated containers in which the flutes of the corrugated medium are oriented in the Machine Direction (MD) of the several layers of paper used. Conversely, in the conventional corrugating process the flutes are oriented at right angles to the MD in the Cross Machine Direction (CD). Paper is stronger in MD than in CD. Therefore, boxes made using the Linear Corrugating process are significantly stronger-in the prime strength criteria, Box Compression Test (BCT) than boxes made conventionally. This means that using Linear Corrugating boxes can be manufactured to BCT equaling conventional boxes but containing 30% less fiber. The corrugated container industry is a large part of the U.S. economy, producing over 40 million tons annually. For such a large industry, the potential savings of Linear Corrugating are enormous. The grant for this project covered three phases in the development of the Linear Corrugating process: (1) Production and evaluation of corrugated boxes on commercial equipment to verify that boxes so manufactured would have enhanced BCT as proposed in the application; (2) Production and evaluation of corrugated boxes made on laboratory equipment using combined board from (1) above but having dual manufactures joints (glue joints). This box manufacturing method (Dual Joint) is proposed to overcome box perimeter limitations of the Linear Corrugating process; (3) Design, Construction, Operation and Evaluation of an engineering prototype machine to form flutes in corrugating medium in the MD of the paper. This operation is the central requirement of the Linear Corrugating process. Items I and II were successfully completed, showing predicted BCT increases from the Linear Corrugated boxes and significant strength improvement in the Dual Joint boxes. The Former was constructed and operated successfully using kraft linerboard as the forming medium. It was found that tensile strength and stretch

  4. Linear Fresnel Power Plant Illustration

    Energy.gov [DOE]

    With this concentrating solar power (CSP) graphic, flat or slightly curved mirrors mounted on trackers on the ground are configured to reflect sunlight onto a receiver tube fixed in space above these mirrors. A small parabolic mirror is sometimes added atop the receiver to further focus the sunlight. Linear CSP collectors capture the sun's energy with large mirrors that reflect and focus the sunlight onto a linear receiver tube. The receiver contains a fluid that is heated by the sunlight and then used to create superheated steam that spins a turbine that drives a generator to produce electricity.

  5. Linear electric field mass spectrometry

    DOE Patents [OSTI]

    McComas, D.J.; Nordholt, J.E.

    1992-12-01

    A mass spectrometer and methods for mass spectrometry are described. The apparatus is compact and of low weight and has a low power requirement, making it suitable for use on a space satellite and as a portable detector for the presence of substances. High mass resolution measurements are made by timing ions moving through a gridless cylindrically symmetric linear electric field. 8 figs.

  6. Linear electric field mass spectrometry

    DOE Patents [OSTI]

    McComas, David J.; Nordholt, Jane E.

    1992-01-01

    A mass spectrometer and methods for mass spectrometry. The apparatus is compact and of low weight and has a low power requirement, making it suitable for use on a space satellite and as a portable detector for the presence of substances. High mass resolution measurements are made by timing ions moving through a gridless cylindrically symmetric linear electric field.

  7. International Linear Collider Technical Design Report - Volume...

    Office of Scientific and Technical Information (OSTI)

    International Linear Collider Technical Design Report - Volume 2: Physics Citation Details In-Document Search Title: International Linear Collider Technical Design Report - Volume ...

  8. Cast dielectric composite linear accelerator

    DOE Patents [OSTI]

    Sanders, David M.; Sampayan, Stephen; Slenes, Kirk; Stoller, H. M.

    2009-11-10

    A linear accelerator having cast dielectric composite layers integrally formed with conductor electrodes in a solventless fabrication process, with the cast dielectric composite preferably having a nanoparticle filler in an organic polymer such as a thermosetting resin. By incorporating this cast dielectric composite the dielectric constant of critical insulating layers of the transmission lines of the accelerator are increased while simultaneously maintaining high dielectric strengths for the accelerator.

  9. Segmented rail linear induction motor

    DOE Patents [OSTI]

    Cowan, M. Jr.; Marder, B.M.

    1996-09-03

    A segmented rail linear induction motor has a segmented rail consisting of a plurality of nonferrous electrically conductive segments aligned along a guideway. The motor further includes a carriage including at least one pair of opposed coils fastened to the carriage for moving the carriage. A power source applies an electric current to the coils to induce currents in the conductive surfaces to repel the coils from adjacent edges of the conductive surfaces. 6 figs.

  10. Segmented rail linear induction motor

    DOE Patents [OSTI]

    Cowan, Jr., Maynard; Marder, Barry M.

    1996-01-01

    A segmented rail linear induction motor has a segmented rail consisting of a plurality of nonferrous electrically conductive segments aligned along a guideway. The motor further includes a carriage including at least one pair of opposed coils fastened to the carriage for moving the carriage. A power source applies an electric current to the coils to induce currents in the conductive surfaces to repel the coils from adjacent edges of the conductive surfaces.

  11. Precision linear ramp function generator

    DOE Patents [OSTI]

    Jatko, W. Bruce (Knoxville, TN); McNeilly, David R. (Maryville, TN); Thacker, Louis H. (Knoxville, TN)

    1986-01-01

    A ramp function generator is provided which produces a precise linear ramp unction which is repeatable and highly stable. A derivative feedback loop is used to stabilize the output of an integrator in the forward loop and control the ramp rate. The ramp may be started from a selected baseline voltage level and the desired ramp rate is selected by applying an appropriate constant voltage to the input of the integrator.

  12. Precision linear ramp function generator

    DOE Patents [OSTI]

    Jatko, W.B.; McNeilly, D.R.; Thacker, L.H.

    1984-08-01

    A ramp function generator is provided which produces a precise linear ramp function which is repeatable and highly stable. A derivative feedback loop is used to stabilize the output of an integrator in the forward loop and control the ramp rate. The ramp may be started from a selected baseline voltage level and the desired ramp rate is selected by applying an appropriate constant voltage to the input of the integrator.

  13. Linearity Testing of Photovoltaic Cells

    SciTech Connect (OSTI)

    Emery, K.; Winter, S.; Pinegar, S.; Nalley, D.

    2006-01-01

    Photovoltaic devices are rated in terms of their peak power with respect to a specific spectrum, total irradiance, and temperature. To rate photovoltaic devices, a reference detector is required whose response is linear with total irradiance. This paper describes a procedure to determine the linearity of the short-circuit current (I{sub sc}) versus the total irradiance (E{sub tot}) by illuminating a reference cell with two lamps. A device is linear if the current measured with both lamps illuminating the cell is the same as the sum of the currents with each lamp illuminating the cell. The two-lamp method is insensitive to the light spectra or spatial nonuniformity changing with irradiance. The two-lamp method is rapid, easy to implement, and does not require operator intervention to change the irradiances. The presence of room light only limits the lowest irradiance that can be evaluated. Unlike other methods, the two-lamp method does not allow the current to be corrected for nonlinear effects.

  14. Linear Thermite Charge - Energy Innovation Portal

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

    Linear Thermite Charge Battelle Memorial Institute Contact BMI About This Technology Publications: PDF Document Publication Linear Thermite Charge Picture (40 KB) PDF Document Publication Linear Thermite Charge Patent (207 KB) Technology Marketing Summary The Linear Thermite Charge (LTC) is designed to rapidly cut through concrete and steel structural components by using extremely high temperature thermite reactions jetted through a linear nozzle. Description Broadly, the invention provides for

  15. CALiPER Snapshot Linear Lamps (TLEDs)

    Energy Savers

    BUILDING TECHNOLOGIES OFFICE Snapshot Linear Lamps (TLEDs) Linear fluorescent lamps-and the "troffers" in which they are often used-are a staple of ambient lighting in offices, classrooms, and other types of commercial spaces. They are energy-efficient, long-lived, and relatively inexpensive. Linear LED lamps, often called TLEDs, are an alternative to linear fluorescent lamps and are mainly used in retrofit situations. Typically drawing about 60% of the power of linear fluorescent

  16. HEATKAU Program.

    Energy Science and Technology Software Center (OSTI)

    2013-07-24

    Version 00 Calculations of the decay heat is of great importance for the design of the shielding of discharged fuel, the design and transport of fuel-storage flasks and the management of the resulting radioactive waste. These are relevant to safety and have large economic and legislative consequences. In the HEATKAU code, a new approach has been proposed to evaluate the decay heat power after a fission burst of a fissile nuclide for short cooling time.more » This method is based on the numerical solution of coupled linear differential equations that describe decays and buildups of the minor fission products (MFPs) nuclides. HEATKAU is written entirely in the MATLAB programming environment. The MATLAB data can be stored in a standard, fast and easy-access, platform- independent binary format which is easy to visualize.« less

  17. Nonferromagnetic linear variable differential transformer

    DOE Patents [OSTI]

    Ellis, James F.; Walstrom, Peter L.

    1977-06-14

    A nonferromagnetic linear variable differential transformer for accurately measuring mechanical displacements in the presence of high magnetic fields is provided. The device utilizes a movable primary coil inside a fixed secondary coil that consists of two series-opposed windings. Operation is such that the secondary output voltage is maintained in phase (depending on polarity) with the primary voltage. The transducer is well-suited to long cable runs and is useful for measuring small displacements in the presence of high or alternating magnetic fields.

  18. Acoustic emission linear pulse holography

    DOE Patents [OSTI]

    Collins, H. Dale; Busse, Lawrence J.; Lemon, Douglas K.

    1985-01-01

    Defects in a structure are imaged as they propagate, using their emitted acoustic energy as a monitored source. Short bursts of acoustic energy propagate through the structure to a discrete element receiver array. A reference timing transducer located between the array and the inspection zone initiates a series of time-of-flight measurements. A resulting series of time-of-flight measurements are then treated as aperture data and are transferred to a computer for reconstruction of a synthetic linear holographic image. The images can be displayed and stored as a record of defect growth.

  19. DOE Publishes CALiPER Report on Linear (T8) LED Lamps in Recessed Troffers

    Energy.gov [DOE]

    The U.S. Department of Energy's CALiPER program has released Report 21.2, which is part of a series of investigations on linear LED lamps. Report 21.2 focuses on the performance of three linear (T8...

  20. International linear collider reference design report

    SciTech Connect (OSTI)

    Aarons, G.

    2007-06-22

    The International Linear Collider will give physicists a new cosmic doorway to explore energy regimes beyond the reach of today's accelerators. A proposed electron-positron collider, the ILC will complement the Large Hadron Collider, a proton-proton collider at the European Center for Nuclear Research (CERN) in Geneva, Switzerland, together unlocking some of the deepest mysteries in the universe. With LHC discoveries pointing the way, the ILC -- a true precision machine -- will provide the missing pieces of the puzzle. Consisting of two linear accelerators that face each other, the ILC will hurl some 10 billion electrons and their anti-particles, positrons, toward each other at nearly the speed of light. Superconducting accelerator cavities operating at temperatures near absolute zero give the particles more and more energy until they smash in a blazing crossfire at the centre of the machine. Stretching approximately 35 kilometres in length, the beams collide 14,000 times every second at extremely high energies -- 500 billion-electron-volts (GeV). Each spectacular collision creates an array of new particles that could answer some of the most fundamental questions of all time. The current baseline design allows for an upgrade to a 50-kilometre, 1 trillion-electron-volt (TeV) machine during the second stage of the project. This reference design provides the first detailed technical snapshot of the proposed future electron-positron collider, defining in detail the technical parameters and components that make up each section of the 31-kilometer long accelerator. The report will guide the development of the worldwide R&D program, motivate international industrial studies and serve as the basis for the final engineering design needed to make an official project proposal later this decade.

  1. Design and performance of the Stanford Linear Collider Control System

    SciTech Connect (OSTI)

    Melen, R.E.

    1984-10-01

    The success of the Stanford Linear Collider (SLC) will be dependent upon the implementation of a very large advanced computer-based instrumentation and control system. This paper describes the architectural design of this system as well as a critique of its performance. This critique is based on experience obtained from its use in the control and monitoring of 1/3 of the SLAC linac and in support of an expensive experimental machine physics experimental program. 11 references, 3 figures.

  2. Reticle stage based linear dosimeter

    DOE Patents [OSTI]

    Berger, Kurt W.

    2007-03-27

    A detector to measure EUV intensity employs a linear array of photodiodes. The detector is particularly suited for photolithography systems that includes: (i) a ringfield camera; (ii) a source of radiation; (iii) a condenser for processing radiation from the source of radiation to produce a ringfield illumination field for illuminating a mask; (iv) a reticle that is positioned at the ringfield camera's object plane and from which a reticle image in the form of an intensity profile is reflected into the entrance pupil of the ringfield camera, wherein the reticle moves in a direction that is transverse to the length of the ringfield illumination field that illuminates the reticle; (v) detector for measuring the entire intensity along the length of the ringfield illumination field that is projected onto the reticle; and (vi) a wafer onto which the reticle imaged is projected from the ringfield camera.

  3. Reticle stage based linear dosimeter

    DOE Patents [OSTI]

    Berger, Kurt W.

    2005-06-14

    A detector to measure EUV intensity employs a linear array of photodiodes. The detector is particularly suited for photolithography systems that includes: (i) a ringfield camera; (ii) a source of radiation; (iii) a condenser for processing radiation from the source of radiation to produce a ringfield illumination field for illuminating a mask; (iv) a reticle that is positioned at the ringfield camera's object plane and from which a reticle image in the form of an intensity profile is reflected into the entrance pupil of the ringfield camera, wherein the reticle moves in a direction that is transverse to the length of the ringfield illumination field that illuminates the reticle; (v) detector for measuring the entire intensity along the length of the ringfield illumination field that is projected onto the reticle; and (vi) a wafer onto which the reticle imaged is projected from the ringfield camera.

  4. Modeling patterns in data using linear and related models

    SciTech Connect (OSTI)

    Engelhardt, M.E.

    1996-06-01

    This report considers the use of linear models for analyzing data related to reliability and safety issues of the type usually associated with nuclear power plants. The report discusses some of the general results of linear regression analysis, such as the model assumptions and properties of the estimators of the parameters. The results are motivated with examples of operational data. Results about the important case of a linear regression model with one covariate are covered in detail. This case includes analysis of time trends. The analysis is applied with two different sets of time trend data. Diagnostic procedures and tests for the adequacy of the model are discussed. Some related methods such as weighted regression and nonlinear models are also considered. A discussion of the general linear model is also included. Appendix A gives some basic SAS programs and outputs for some of the analyses discussed in the body of the report. Appendix B is a review of some of the matrix theoretic results which are useful in the development of linear models.

  5. High Performance Preconditioners and Linear Solvers

    Energy Science and Technology Software Center (OSTI)

    2006-07-27

    Hypre is a software library focused on the solution of large, sparse linear systems of equations on massively parallel computers.

  6. International Workshop on Linear Colliders 2010

    ScienceCinema (OSTI)

    None

    2011-10-06

    IWLC2010 International Workshop on Linear Colliders 2010ECFA-CLIC-ILC joint meeting: Monday 18 October - Friday 22 October 2010Venue: CERN and CICG (International Conference Centre Geneva, Switzerland) This year, the International Workshop on Linear Colliders organized by the European Committee for Future Accelerators (ECFA) will study the physics, detectors and accelerator complex of a linear collider covering both CLIC and ILC options.Contact Workshop Secretariat  IWLC2010 is hosted by CERN

  7. Program Analysis

    Energy.gov [DOE]

    2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Vehicle Technologies Plenary

  8. Ultra-high vacuum photoelectron linear accelerator

    DOE Patents [OSTI]

    Yu, David U.L.; Luo, Yan

    2013-07-16

    An rf linear accelerator for producing an electron beam. The outer wall of the rf cavity of said linear accelerator being perforated to allow gas inside said rf cavity to flow to a pressure chamber surrounding said rf cavity and having means of ultra high vacuum pumping of the cathode of said rf linear accelerator. Said rf linear accelerator is used to accelerate polarized or unpolarized electrons produced by a photocathode, or to accelerate thermally heated electrons produced by a thermionic cathode, or to accelerate rf heated field emission electrons produced by a field emission cathode.

  9. International Linear Collider Technical Design Report - Volume...

    Office of Scientific and Technical Information (OSTI)

    Design Report - Volume 2: Physics Citation Details In-Document Search Title: International Linear Collider Technical Design Report - Volume 2: Physics You are accessing a ...

  10. International Linear Collider Technical Design Report - Volume...

    Office of Scientific and Technical Information (OSTI)

    Linear Collider Technical Design Report - Volume 2: Physics Baer, Howard; Barklow, Tim; Fujii, Keisuke; Gao, Yuanning; Hoang, Andre; Kanemura, Shinya; List, Jenny; Logan, Heather...

  11. The Linear Engine Pathway of Transformation

    Energy.gov [DOE]

    This poster highlights the major milestones in the history of the linear engine in terms of technological advances, novel designs, and economic/social impact.

  12. LED Replacements for Linear Fluorescent Lamps Webcast

    Energy.gov [DOE]

    In this June 20, 2011 webcast on LED products marketed as replacements for linear fluorescent lamps, Jason Tuenge of the Pacific Northwest National Laboratory (PNNL) discussed current Lighting...

  13. Finite element analyses of a linear-accelerator electron gun

    SciTech Connect (OSTI)

    Iqbal, M. E-mail: muniqbal@ihep.ac.cn; Wasy, A.; Islam, G. U.; Zhou, Z.

    2014-02-15

    Thermo-structural analyses of the Beijing Electron-Positron Collider (BEPCII) linear-accelerator, electron gun, were performed for the gun operating with the cathode at 1000 °C. The gun was modeled in computer aided three-dimensional interactive application for finite element analyses through ANSYS workbench. This was followed by simulations using the SLAC electron beam trajectory program EGUN for beam optics analyses. The simulations were compared with experimental results of the assembly to verify its beam parameters under the same boundary conditions. Simulation and test results were found to be in good agreement and hence confirmed the design parameters under the defined operating temperature. The gun is operating continuously since commissioning without any thermal induced failures for the BEPCII linear accelerator.

  14. Program Evaluation: Program Life Cycle

    Energy.gov [DOE]

    In general, different types of evaluation are carried out over different parts of a program's life cycle (e.g., Creating a program, Program is underway, or Closing out or end of program)....

  15. Non-Linear Seismic Soil Structure Interaction (SSI) Method for...

    Office of Environmental Management (EM)

    Non-Linear Seismic Soil Structure Interaction (SSI) Method for Developing Non-Linear Seismic SSI Analysis Techniques Non-Linear Seismic Soil Structure Interaction (SSI) Method for ...

  16. Voltage regulation in linear induction accelerators

    DOE Patents [OSTI]

    Parsons, William M.

    1992-01-01

    Improvement in voltage regulation in a Linear Induction Accelerator wherein a varistor, such as a metal oxide varistor, is placed in parallel with the beam accelerating cavity and the magnetic core. The non-linear properties of the varistor result in a more stable voltage across the beam accelerating cavity than with a conventional compensating resistance.

  17. Voltage regulation in linear induction accelerators

    DOE Patents [OSTI]

    Parsons, W.M.

    1992-12-29

    Improvement in voltage regulation in a linear induction accelerator wherein a varistor, such as a metal oxide varistor, is placed in parallel with the beam accelerating cavity and the magnetic core is disclosed. The non-linear properties of the varistor result in a more stable voltage across the beam accelerating cavity than with a conventional compensating resistance. 4 figs.

  18. Voila: A visual object-oriented iterative linear algebra problem solving environment

    SciTech Connect (OSTI)

    Edwards, H.C.; Hayes, L.J.

    1994-12-31

    Application of iterative methods to solve a large linear system of equations currently involves writing a program which calls iterative method subprograms from a large software package. These subprograms have complex interfaces which are difficult to use and even more difficult to program. A problem solving environment specifically tailored to the development and application of iterative methods is needed. This need will be fulfilled by Voila, a problem solving environment which provides a visual programming interface to object-oriented iterative linear algebra kernels. Voila will provide several quantum improvements over current iterative method problem solving environments. First, programming and applying iterative methods is considerably simplified through Voila`s visual programming interface. Second, iterative method algorithm implementations are independent of any particular sparse matrix data structure through Voila`s object-oriented kernels. Third, the compile-link-debug process is eliminated as Voila operates as an interpreter.

  19. DOE Publishes CALiPER Report on Cost-Effectiveness of Linear (T8) LED Lamps

    Energy Savers

    | Department of Energy CALiPER Report on Cost-Effectiveness of Linear (T8) LED Lamps DOE Publishes CALiPER Report on Cost-Effectiveness of Linear (T8) LED Lamps May 30, 2014 - 4:58pm Addthis The U.S. Department of Energy's CALiPER program has released Report 21.3, which is part of a series of investigations on linear LED lamps. Report 21.3 details a set of life-cycle cost simulations that compared a two-lamp troffer using LED lamps (38W total power draw) or fluorescent lamps (51W total power

  20. Optically isolated signal coupler with linear response

    DOE Patents [OSTI]

    Kronberg, James W.

    1994-01-01

    An optocoupler for isolating electrical signals that translates an electrical input signal linearly to an electrical output signal. The optocoupler comprises a light emitter, a light receiver, and a light transmitting medium. The light emitter, preferably a blue, silicon carbide LED, is of the type that provides linear, electro-optical conversion of electrical signals within a narrow wavelength range. Correspondingly, the light receiver, which converts light signals to electrical signals and is preferably a cadmium sulfide photoconductor, is linearly responsive to light signals within substantially the same wavelength range as the blue LED.

  1. International Workshop on Linear Colliders 2010

    ScienceCinema (OSTI)

    None

    2016-07-12

    IWLC2010 International Workshop on Linear Colliders 2010ECFA-CLIC-ILC joint meeting: Monday 18 October - Friday 22 October 2010Venue: CERN and CICG (International Conference Centre Geneva, Switzerland) This year, the International Workshop on Linear Colliders organized by the European Committee for Future Accelerators (ECFA) will study the physics, detectors and accelerator complex of a linear collider covering both CLIC and ILC options.Contact Workshop Secretariat  IWLC2010 is hosted by CERN

  2. LINEAR COLLIDER PHYSICS RESOURCE BOOK FOR SNOWMASS 2001.

    SciTech Connect (OSTI)

    ABE,T.; DAWSON,S.; HEINEMEYER,S.; MARCIANO,W.; PAIGE,F.; TURCOT,A.S.; ET AL

    2001-05-03

    The American particle physics community can look forward to a well-conceived and vital program of experimentation for the next ten years, using both colliders and fixed target beams to study a wide variety of pressing questions. Beyond 2010, these programs will be reaching the end of their expected lives. The CERN LHC will provide an experimental program of the first importance. But beyond the LHC, the American community needs a coherent plan. The Snowmass 2001 Workshop and the deliberations of the HEPAP subpanel offer a rare opportunity to engage the full community in planning our future for the next decade or more. A major accelerator project requires a decade from the beginning of an engineering design to the receipt of the first data. So it is now time to decide whether to begin a new accelerator project that will operate in the years soon after 2010. We believe that the world high-energy physics community needs such a project. With the great promise of discovery in physics at the next energy scale, and with the opportunity for the uncovering of profound insights, we cannot allow our field to contract to a single experimental program at a single laboratory in the world. We believe that an e{sup +}e{sup {minus}} linear collider is an excellent choice for the next major project in high-energy physics. Applying experimental techniques very different from those used at hadron colliders, an e{sup +}e{sup {minus}} linear collider will allow us to build on the discoveries made at the Tevatron and the LHC, and to add a level of precision and clarity that will be necessary to understand the physics of the next energy scale. It is not necessary to anticipate specific results from the hadron collider programs to argue for constructing an e{sup +}e{sup {minus}} linear collider; in any scenario that is now discussed, physics will benefit from the new information that e{sup +}e{sup {minus}} experiments can provide.

  3. Educational Programs

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

    Educational Programs Educational Programs The Lab provides a variety of focused educational programs aimed at the development and application of essential knowledge and skills in scientific fields key to our national security mission. Contacts Student Programs Team Leader Scott Robbins National Security Education Center 505-665-3639 Email Los Alamos Educational Programs Educational programs at Los Alamos combine significant hands-on group project experiences with more traditional classroom

  4. Weatherization Program

    Energy.gov [DOE]

    Residences participating in the Home Energy Rebate or New Home Rebate Program may not also participate in the Weatherization Program

  5. Program Administration

    Directives, Delegations, and Requirements [Office of Management (MA)]

    1997-08-21

    This volume describes program administration that establishes and maintains effective organizational management and control of the emergency management program. Canceled by DOE G 151.1-3.

  6. Status of the SLC (Stanford Linear Collider)

    SciTech Connect (OSTI)

    Coupal, D.P.

    1989-07-01

    This report presents a brief review of the status of the Stanford Linear Collider. Topics covered are: Beam luminosity, Detectors and backgrounds; and Future prospects. 3 refs., 8 figs., 1 tab. (LSP)

  7. Randomized Linear Algebra for BioImaging

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

    Randomized Linear Algebra for BioImaging Randomized Linear Algebra for BioImaging Mass-Spectrometry Imaging Mass spectrometry measures ions derived from the molecules present in a biological sample. Spectra of the ions are acquired at each location (pixel) of a sample, allowing for the collection of spatially resolved mass spectra. This mode of analysis is known as mass spectrometry imaging (MSI). The addition of ion-mobility separation (IMS) to MSI adds another dimension, drift time. The

  8. Visiting Faculty Program Program Description

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

    Visiting Faculty Program Program Description The Visiting Faculty Program seeks to increase the research competitiveness of faculty members and their students at institutions historically underrepresented in the research community in order to expand the workforce vital to Department of Energy mission areas. As part of the program, selected university/college faculty members collaborate with DOE laboratory research staff on a research project of mutual interest. Program Objective The program is

  9. Visiting Faculty Program Program Description

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

    covers stipend and travel reimbursement for the 10-week program. Teacherfaculty participants: 1 Program Coordinator: Scott Robbins Email: srobbins@lanl.gov Phone number: 663-5621...

  10. EA-353 Boralex Ashland LP

    Energy.gov [DOE]

    Letter to Boralex requesting additional information regarding the terms and conditions specified in Section 202(e) of the Federal Power Act in order to continue to export electric energy to Canada.

  11. Final Report for the UNIVERSITY-BASED DETECTOR RESEARCH AND DEVELOPMENT FOR THE INTERNATIONAL LINEAR COLLIDER

    SciTech Connect (OSTI)

    Brau, James E

    2013-04-22

    The U.S Linear Collider Detector R&D program, supported by the DOE and NSF umbrella grants to the University of Oregon, made significant advances on many critical aspects of the ILC detector program. Progress advanced on vertex detector sensor development, silicon and TPC tracking, calorimetry on candidate technologies, and muon detection, as well as on beamline measurements of luminosity, energy, and polarization.

  12. Light Water Reactor Sustainability Program - Integrated Program...

    Energy Savers

    Program - Integrated Program Plan Light Water Reactor Sustainability Program - Integrated Program Plan The Light Water Reactor Sustainability (LWRS) Program is a research and ...

  13. Dual-range linearized transimpedance amplifier system

    DOE Patents [OSTI]

    Wessendorf, Kurt O.

    2010-11-02

    A transimpedance amplifier system is disclosed which simultaneously generates a low-gain output signal and a high-gain output signal from an input current signal using a single transimpedance amplifier having two different feedback loops with different amplification factors to generate two different output voltage signals. One of the feedback loops includes a resistor, and the other feedback loop includes another resistor in series with one or more diodes. The transimpedance amplifier system includes a signal linearizer to linearize one or both of the low- and high-gain output signals by scaling and adding the two output voltage signals from the transimpedance amplifier. The signal linearizer can be formed either as an analog device using one or two summing amplifiers, or alternately can be formed as a digital device using two analog-to-digital converters and a digital signal processor (e.g. a microprocessor or a computer).

  14. Linear transformer driver for pulse generation

    DOE Patents [OSTI]

    Kim, Alexander A; Mazarakis, Michael G; Sinebryukhov, Vadim A; Volkov, Sergey N; Kondratiev, Sergey S; Alexeenko, Vitaly M; Bayol, Frederic; Demol, Gauthier; Stygar, William A

    2015-04-07

    A linear transformer driver includes at least one ferrite ring positioned to accept a load. The linear transformer driver also includes a first power delivery module that includes a first charge storage devices and a first switch. The first power delivery module sends a first energy in the form of a first pulse to the load. The linear transformer driver also includes a second power delivery module including a second charge storage device and a second switch. The second power delivery module sends a second energy in the form of a second pulse to the load. The second pulse has a frequency that is approximately three times the frequency of the first pulse. The at least one ferrite ring is positioned to force the first pulse and the second pulse to the load by temporarily isolating the first pulse and the second pulse from an electrical ground.

  15. Linear Transformation Method for Multinuclide Decay Calculation

    SciTech Connect (OSTI)

    Ding Yuan

    2010-12-29

    A linear transformation method for generic multinuclide decay calculations is presented together with its properties and implications. The method takes advantage of the linear form of the decay solution N(t) = F(t)N{sub 0}, where N(t) is a column vector that represents the numbers of atoms of the radioactive nuclides in the decay chain, N{sub 0} is the initial value vector of N(t), and F(t) is a lower triangular matrix whose time-dependent elements are independent of the initial values of the system.

  16. Linear Concentrator Solar Power Plant Illustration

    Energy.gov [DOE]

    This graphic illustrates linear concentrating solar power (CSP) collectors that capture the sun's energy with large mirrors that reflect and focus the sunlight onto a linear receiver tube. The receiver contains a fluid that is heated by the sunlight and then used to create superheated steam that spins a turbine that drives a generator to produce electricity. Alternatively, steam can be generated directly in the solar field, eliminating the need for costly heat exchangers. In a parabolic trough system, the receiver tube is positioned along the focal line of each parabola-shaped reflector.

  17. Linear and angular retroreflecting interferometric alignment target

    DOE Patents [OSTI]

    Maxey, L. Curtis

    2001-01-01

    The present invention provides a method and apparatus for measuring both the linear displacement and angular displacement of an object using a linear interferometer system and an optical target comprising a lens, a reflective surface and a retroreflector. The lens, reflecting surface and retroreflector are specifically aligned and fixed in optical connection with one another, creating a single optical target which moves as a unit that provides multi-axis displacement information for the object with which it is associated. This displacement information is useful in many applications including machine tool control systems and laser tracker systems, among others.

  18. Beamstrahlung spectra in next generation linear colliders

    SciTech Connect (OSTI)

    Barklow, T.; Chen, P. ); Kozanecki, W. )

    1992-04-01

    For the next generation of linear colliders, the energy loss due to beamstrahlung during the collision of the e{sup +}e{sup {minus}} beams is expected to substantially influence the effective center-of-mass energy distribution of the colliding particles. In this paper, we first derive analytical formulae for the electron and photon energy spectra under multiple beamstrahlung processes, and for the e{sup +}e{sup {minus}} and {gamma}{gamma} differential luminosities. We then apply our formulation to various classes of 500 GeV e{sup +}e{sup {minus}} linear collider designs currently under study.

  19. DOE Publishes CALiPER Report on Cost-Effectiveness of Linear (T8) LED Lamps

    Energy.gov [DOE]

    The U.S. Department of Energy's CALiPER program has released Report 21.3, which is part of a series of investigations on linear LED lamps. Report 21.3 details a set of life-cycle cost simulations...

  20. Linear corrugating: Forest products project fact sheet

    SciTech Connect (OSTI)

    NREL

    1999-12-14

    This is a fact sheet written for the Inventions and Innovation Program about a new process for creating corrugated cardboard products.

  1. Beam generation and planar imaging at energies below 2.40 MeV with carbon and aluminum linear accelerator targets

    SciTech Connect (OSTI)

    Parsons, David; Robar, James L.

    2012-07-15

    Purpose: Recent work has demonstrated improvement of image quality with low-Z linear accelerator targets and energies as low as 3.5 MV. In this paper, the authors lower the incident electron beam energy between 1.90 and 2.35 MeV and assess the improvement of megavoltage planar image quality with the use of carbon and aluminum linear accelerator targets. Methods: The bending magnet shunt current was adjusted in a Varian linear accelerator to allow selection of mean electron energy between 1.90 and 2.35 MeV. Linac set points were altered to increase beam current to allow experimental imaging in a practical time frame. Electron energy was determined through comparison of measured and Monte Carlo modeled depth dose curves. Planar image CNR and spatial resolution measurements were performed to quantify the improvement of image quality. Magnitudes of improvement are explained with reference to Monte Carlo generated energy spectra. Results: After modifications to the linac, beam current was increased by a factor greater than four and incident electron energy was determined to have an adjustable range from 1.90 MeV to 2.35 MeV. CNR of cortical bone was increased by a factor ranging from 6.2 to 7.4 and 3.7 to 4.3 for thin and thick phantoms, respectively, compared to a 6 MV therapeutic beam for both aluminum and carbon targets. Spatial resolution was degraded slightly, with a relative change of 3% and 10% at 0.20 lp/mm and 0.40 lp/mm, respectively, when reducing energy from 2.35 to 1.90 MV. The percentage of diagnostic x-rays for the beams examined here, ranges from 46% to 54%.Conclusion: It is possible to produce a large fraction of diagnostic energy x-rays by lowering the beam energy below 2.35 MV. By lowering the beam energy to 1.90 MV or 2.35 MV, CNR improves by factors ranging from 3.7 to 7.4 compared to a 6 MV therapy beam, with only a slight degradation of spatial resolution when lowering the energy from 2.35 MV to 1.90 MV.

  2. HVAC Program

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

    New Commercial Program Development Commercial Current Promotions Industrial Federal Agriculture Heating Ventilation and Air Conditioning Energy efficient Heating Ventilation and...

  3. Retiree Program

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

    Library Services » Retiree Program Retiree Program The Research Library offers a 1 year library card to retired LANL employees that allows usage of Library materials. This service is only available to retired LANL employees. Who is eligible? Any Laboratory retiree, not participating in any other program (ie, Guest Scientist, Affiliate). Upon completion of your application, you will be notified of your acceptance into the program. This does not include past students. What is the term of the

  4. KLU2 Direct Linear Solver Package

    Energy Science and Technology Software Center (OSTI)

    2012-01-04

    KLU2 is a direct sparse solver for solving unsymmetric linear systems. It is related to the existing KLU solver, (in Amesos package and also as a stand-alone package from University of Florida) but provides template support for scalar and ordinal types. It uses a left looking LU factorization method.

  5. Finite Element Interface to Linear Solvers

    Energy Science and Technology Software Center (OSTI)

    2005-03-18

    Sparse systems of linear equations arise in many engineering applications, including finite elements, finite volumes, and others. The solution of linear systems is often the most computationally intensive portion of the application. Depending on the complexity of problems addressed by the application, there may be no single solver capable of solving all of the linear systems that arise. This motivates the desire to switch an application from one solver librwy to another, depending on themore » problem being solved. The interfaces provided by solver libraries differ greatly, making it difficult to switch an application code from one library to another. The amount of library-specific code in an application Can be greatly reduced by having an abstraction layer between solver libraries and the application, putting a common "face" on various solver libraries. One such abstraction layer is the Finite Element Interface to Linear Solvers (EEl), which has seen significant use by finite element applications at Sandia National Laboratories and Lawrence Livermore National Laboratory.« less

  6. Physics Case for the International Linear Collider

    SciTech Connect (OSTI)

    Fujii, Keisuke; Grojean, Christophe; Peskin, Michael E.; Barklow, Tim; Gao, Yuanning; Kanemura, Shinya; Kim, Hyungdo; List, Jenny; Nojiri, Mihoko; Perelstein, Maxim; Poeschl, Roman; Reuter, Juergen; Simon, Frank; Tanabe, Tomohiko; Yu, Jaehoon; Wells, James D.; Murayama, Hitoshi; Yamamoto, Hitoshi; /Tohoku U.

    2015-06-23

    We summarize the physics case for the International Linear Collider (ILC). We review the key motivations for the ILC presented in the literature, updating the projected measurement uncertainties for the ILC experiments in accord with the expected schedule of operation of the accelerator and the results of the most recent simulation studies.

  7. Notes on beam dynamics in linear accelerators

    SciTech Connect (OSTI)

    Gluckstern, R.L.

    1980-09-01

    A collection of notes, on various aspects of beam dynamics in linear accelerators, which were produced by the author during five years (1975 to 1980) of consultation for the LASL Accelerator Technology (AT) Division and Medium-Energy Physics (MP) Division is presented.

  8. A microcomputer-controlled linear heater

    SciTech Connect (OSTI)

    Schuck, V.; Rahimi, S. )

    1991-10-01

    In this note the circuits and principles of operation of a relatively simple and inexpensive linear temperature ramp generator are described. The upper-temperature limit and the heating rate are controlled by an Apple II microcomputer. The temperature versus time is displayed on the screen and may be plotted by an {ital x}-{ital y} plotter.

  9. Linear and non-linear forced response of a conical, ducted, laminar premixed flame

    SciTech Connect (OSTI)

    Karimi, Nader; Brear, Michael J.; Jin, Seong-Ho; Monty, Jason P. [Department of Mechanical Engineering, University of Melbourne, Parkville, 3010 Vic. (Australia)

    2009-11-15

    This paper presents an experimental study on the dynamics of a ducted, conical, laminar premixed flame subjected to acoustic excitation of varying amplitudes. The flame transfer function is measured over a range of forcing frequencies and equivalence ratios. In keeping with previous works, the measured flame transfer function is in good agreement with that predicted by linear kinematic theory at low amplitudes of acoustic velocity excitation. However, a systematic departure from linear behaviour is observed as the amplitude of the velocity forcing upstream of the flame increases. This non-linearity is mostly in the phase of the transfer function and manifests itself as a roughly constant phase at high forcing amplitude. Nonetheless, as predicted by non-linear kinematic arguments, the response always remains close to linear at low forcing frequencies, regardless of the forcing amplitude. The origin of this phase behaviour is then sought through optical data post-processing. (author)

  10. EPACT 2005 SECTION 242 HYDRO INCENTIVE PROGRAM Calendar Year...

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

    LLC 45 Mile Hydroelectric Project Energy Stream, LLC M.S.C. Hydro Erie Boulevard Hydropower LP Sherman Island Unit 1 ... River Hydropower Project Three Sisters Irrigation District ...

  11. Save Energy Now Assessment Helps Expand Energy Management Program...

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

    KB) More Documents & Publications Terra Nitrogen Company, L.P.: Ammonia Plant Greatly ... Save Energy Now Assessment Steam System Efficiency Optimized After J.R. Simplot Fertilizer ...

  12. International Linear Collider-A Technical Progress Report (Technical...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: International Linear Collider-A Technical Progress Report Citation Details In-Document Search Title: International Linear Collider-A Technical Progress Report The ...

  13. MHK Technologies/Ocean Current Linear Turbine | Open Energy Informatio...

    Open Energy Information (Open El) [EERE & EIA]

    Current Linear Turbine < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Ocean Current Linear Turbine.jpg Technology Profile Primary...

  14. Updates to the International Linear Collider Damping Rings Baseline...

    Office of Scientific and Technical Information (OSTI)

    Updates to the International Linear Collider Damping Rings Baseline Design Citation Details In-Document Search Title: Updates to the International Linear Collider Damping Rings...

  15. A Linear Theory of Microwave Instability in Electron Storage...

    Office of Scientific and Technical Information (OSTI)

    Journal Article: A Linear Theory of Microwave Instability in Electron Storage Rings Citation Details In-Document Search Title: A Linear Theory of Microwave Instability in Electron...

  16. Neutrino mass, dark energy, and the linear growth factor (Journal...

    Office of Scientific and Technical Information (OSTI)

    dark energy, and the linear growth factor Citation Details In-Document Search Title: Neutrino mass, dark energy, and the linear growth factor We study the degeneracies between ...

  17. Phase and Radial Motion in Ion Linear Accelerators

    Energy Science and Technology Software Center (OSTI)

    2007-03-29

    Parmila is an ion-linac particle-dynamics code. The name comes from the phrase, "Phase and Radial Motion in Ion Linear Accelerators." The code generates DTL, CCDTL, and CCL accelerating cells and, using a "drift-kick" method, transforms the beam, represented by a collection of particles, through the linac. The code includes a 2-D and 3-D space-charge calculations. Parmila uses data generated by the Poisson Superfish postprocessor SEC. This version of Parmila was written by Harunori Takeda andmore » was supported through Feb. 2006 by James H. Billen. Setup installs executable programs Parmila.EXE, Lingraf.EXE, and ReadPMI.EXE in the LANL directory. The directory LANL\\Examples\\Parmila contains several subdirectories with sample files for Parmila.« less

  18. Non-Linear Seismic Soil Structure Interaction (SSI) Method for Developing Non-Linear Seismic SSI Analysis Techniques

    Energy.gov [DOE]

    Non-Linear Seismic Soil Structure Interaction (SSI) Method for Developing Non-Linear Seismic SSI Analysis Techniques Justin Coleman, P.E. October 25th, 2011

  19. Enhanced dielectric-wall linear accelerator

    DOE Patents [OSTI]

    Sampayan, S.E.; Caporaso, G.J.; Kirbie, H.C.

    1998-09-22

    A dielectric-wall linear accelerator is enhanced by a high-voltage, fast e-time switch that includes a pair of electrodes between which are laminated alternating layers of isolated conductors and insulators. A high voltage is placed between the electrodes sufficient to stress the voltage breakdown of the insulator on command. A light trigger, such as a laser, is focused along at least one line along the edge surface of the laminated alternating layers of isolated conductors and insulators extending between the electrodes. The laser is energized to initiate a surface breakdown by a fluence of photons, thus causing the electrical switch to close very promptly. Such insulators and lasers are incorporated in a dielectric wall linear accelerator with Blumlein modules, and phasing is controlled by adjusting the length of fiber optic cables that carry the laser light to the insulator surface. 6 figs.

  20. Noise in phase-preserving linear amplifiers

    SciTech Connect (OSTI)

    Pandey, Shashank; Jiang, Zhang; Combes, Joshua; Caves, Carlton M.

    2014-12-04

    The purpose of a phase-preserving linear amplifier is to make a small signal larger, so that it can be perceived by instruments incapable of resolving the original signal, while sacrificing as little as possible in signal-to-noise. Quantum mechanics limits how well this can be done: the noise added by the amplifier, referred to the input, must be at least half a quantum at the operating frequency. This well-known quantum limit only constrains the second moments of the added noise. Here we provide the quantum constraints on the entire distribution of added noise: any phasepreserving linear amplifier is equivalent to a parametric amplifier with a physical state ? for the ancillary mode; ? determines the properties of the added noise.

  1. Tilted panel linear echelon solar collector

    SciTech Connect (OSTI)

    Appeldorn, R.H.; Vanderwerf, D.F.

    1989-01-31

    A solar concentrator is described for directing incident solar radiation to a linear focus, comprising: a planar base surface being positioned at an angle phi, which is greater than 0/sup 0/ but less than 90/sup 0/, with respect to a direction which is normal to the incident solar radiation; a plurality of planar reflective elements set along the planar base surface each of which is positioned at an angle ..cap alpha..' with respect to the planar base surface and which varies for each of the planar reflective elements to reflect the incident solar radiation to the linear focus, the plurality of planar reflective elements being separated from each other by substantially planar riser elements, the riser elements being substantially normal to the planar base surface, each of the planar reflective elements making an angle ..cap alpha.. with respect to the direction which is normal to the incident solar radiation.

  2. Enhanced dielectric-wall linear accelerator

    DOE Patents [OSTI]

    Sampayan, Stephen E.; Caporaso, George J.; Kirbie, Hugh C.

    1998-01-01

    A dielectric-wall linear accelerator is enhanced by a high-voltage, fast e-time switch that includes a pair of electrodes between which are laminated alternating layers of isolated conductors and insulators. A high voltage is placed between the electrodes sufficient to stress the voltage breakdown of the insulator on command. A light trigger, such as a laser, is focused along at least one line along the edge surface of the laminated alternating layers of isolated conductors and insulators extending between the electrodes. The laser is energized to initiate a surface breakdown by a fluence of photons, thus causing the electrical switch to close very promptly. Such insulators and lasers are incorporated in a dielectric wall linear accelerator with Blumlein modules, and phasing is controlled by adjusting the length of fiber optic cables that carry the laser light to the insulator surface.

  3. Inpainting with sparse linear combinations of exemplars

    SciTech Connect (OSTI)

    Wohlberg, Brendt

    2008-01-01

    We introduce a new exemplar-based inpainting algorithm based on representing the region to be inpainted as a sparse linear combination of blocks extracted from similar parts of the image being inpainted. This method is conceptually simple, being computed by functional minimization, and avoids the complexity of correctly ordering the filling in of missing regions of other exemplar-based methods. Initial performance comparisons on small inpainting regions indicate that this method provides similar or better performance than other recent methods.

  4. Radio frequency quadrupole resonator for linear accelerator

    DOE Patents [OSTI]

    Moretti, Alfred

    1985-01-01

    An RFQ resonator for a linear accelerator having a reduced level of interfering modes and producing a quadrupole mode for focusing, bunching and accelerating beams of heavy charged particles, with the construction being characterized by four elongated resonating rods within a cylinder with the rods being alternately shorted and open electrically to the shell at common ends of the rods to provide an LC parallel resonant circuit when activated by a magnetic field transverse to the longitudinal axis.

  5. High gradient accelerators for linear light sources

    SciTech Connect (OSTI)

    Barletta, W.A.

    1988-09-26

    Ultra-high gradient radio frequency linacs powered by relativistic klystrons appear to be able to provide compact sources of radiation at XUV and soft x-ray wavelengths with a duration of 1 picosecond or less. This paper provides a tutorial review of the physics applicable to scaling the present experience of the accelerator community to the regime applicable to compact linear light sources. 22 refs., 11 figs., 21 tabs.

  6. The Next Linear Collider: NLC2001

    SciTech Connect (OSTI)

    D. Burke et al.

    2002-01-14

    Recent studies in elementary particle physics have made the need for an e{sup +}e{sup -} linear collider able to reach energies of 500 GeV and above with high luminosity more compelling than ever [1]. Observations and measurements completed in the last five years at the SLC (SLAC), LEP (CERN), and the Tevatron (FNAL) can be explained only by the existence of at least one particle or interaction that has not yet been directly observed in experiment. The Higgs boson of the Standard Model could be that particle. The data point strongly to a mass for the Higgs boson that is just beyond the reach of existing colliders. This brings great urgency and excitement to the potential for discovery at the upgraded Tevatron early in this decade, and almost assures that later experiments at the LHC will find new physics. But the next generation of experiments to be mounted by the world-wide particle physics community must not only find this new physics, they must find out what it is. These experiments must also define the next important threshold in energy. The need is to understand physics at the TeV energy scale as well as the physics at the 100-GeV energy scale is now understood. This will require both the LHC and a companion linear electron-positron collider. A first Zeroth-Order Design Report (ZDR) [2] for a second-generation electron-positron linear collider, the Next Linear Collider (NLC), was published five years ago. The NLC design is based on a high-frequency room-temperature rf accelerator. Its goal is exploration of elementary particle physics at the TeV center-of-mass energy, while learning how to design and build colliders at still higher energies. Many advances in accelerator technologies and improvements in the design of the NLC have been made since 1996. This Report is a brief update of the ZDR.

  7. Communications circuit including a linear quadratic estimator

    SciTech Connect (OSTI)

    Ferguson, Dennis D.

    2015-07-07

    A circuit includes a linear quadratic estimator (LQE) configured to receive a plurality of measurements a signal. The LQE is configured to weight the measurements based on their respective uncertainties to produce weighted averages. The circuit further includes a controller coupled to the LQE and configured to selectively adjust at least one data link parameter associated with a communication channel in response to receiving the weighted averages.

  8. Linearity Testing of Photovoltaic Cells (Poster)

    SciTech Connect (OSTI)

    Emery, K.; Winter, S.; Pinegar, S.; Nalley, D.

    2006-05-01

    International PV standards require that the short-circuit current or response of the reference device be linear with total irradiance. Accredited calibration laboratories can not assume that their reference device is linear unless another accredited laboratory has performed the measurement. The NREL PV performance laboratory is ISO 17025 accredited for primary reference cell, secondary reference cell and secondary module calibrations. Limited labor resources necessitated the development of a technique to determine linearity without taking significant labor or technical skill. The two-lamp method is insensitive to the spectrum of the light or spatial nonuniformity changing as the irradiance is varied. It does assume that the temperature does not change with irradiance and that the light-source spectrum resembles the solar spectrum. This requirement is only because nonlinear mechanisms in the photo-current are wavelength dependent. A laser for example may show the same device as linear or very nonlinear with irradiance depending on the wavelength. The two-lamp method assumes that the lamp intensities when individually irradiating the sample are the same as when both lamps irradiate the sample. The presence of room light only limits the lowest irradiance that can be evaluated. Unlike other methods, the two-lamp method does not allow the current to be corrected for nonlinear effects. The most appealing aspect of the two-lamp method when compared with other methods for a high-volume calibration laboratory is that it is fast and does not require operator intervention to change the irradiances and is difficult for the operator to make mistakes that would affect the outcome.

  9. Linearity Testing of Photovoltaic Cells: Preprint

    SciTech Connect (OSTI)

    Emery, K.; Winter, S.; Pinegar, S.; Nalley D.

    2006-05-01

    Photovoltaic devices are rated in terms of their peak power with respect to a specific spectrum, total irradiance, and temperature. To rate photovoltaic devices, a reference detector is required whose response is linear with total irradiance. This paper describes a procedure to determine the linearity of the short-circuit current (Isc) versus the total irradiance (Etot) by illuminating a reference cell with two lamps. A device is linear if the current measured with both lamps illuminating the cell is the same as the sum of the currents with each lamp illuminating the cell. The two-lamp method is insensitive to the light spectra or spatial nonuniformity changing with irradiance. The two-lamp method is rapid, easy to implement, and does not require operator intervention to change the irradiances. The presence of room light only limits the lowest irradiance that can be evaluated. Unlike other methods, the two-lamp method does not allow the current to be corrected for nonlinear effects.

  10. Program Description

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

    Program Description SAGE, the Summer of Applied Geophysical Experience, is a unique educational program designed to introduce students in geophysics and related fields to "hands on" geophysical exploration and research. The program emphasizes both teaching of field methods and research related to basic science and a variety of applied problems. SAGE is hosted by the National Security Education Center and the Earth and Environmental Sciences Division of the Los Alamos National

  11. Towards a Future Linear Collider and The Linear Collider Studies at CERN

    ScienceCinema (OSTI)

    None

    2016-07-12

    During the week 18-22 October, more than 400 physicists will meet at CERN and in the CICG (International Conference Centre Geneva) to review the global progress towards a future linear collider. The 2010 International Workshop on Linear Colliders will study the physics, detectors and accelerator complex of a linear collider covering both the CLIC and ILC options. Among the topics presented and discussed will be the progress towards the CLIC Conceptual Design Report in 2011, the ILC Technical Design Report in 2012, physics and detector studies linked to these reports, and an increasing numbers of common working group activities. The seminar will give an overview of these topics and also CERN’s linear collider studies, focusing on current activities and initial plans for the period 2011-16. n.b: The Council Chamber is also reserved for this colloquium with a live transmission from the Main Auditorium.

  12. Towards a Future Linear Collider and The Linear Collider Studies at CERN

    ScienceCinema (OSTI)

    None

    2011-10-06

    During the week 18-22 October, more than 400 physicists will meet at CERN and in the CICG (International Conference Centre Geneva) to review the global progress towards a future linear collider. The 2010 International Workshop on Linear Colliders will study the physics, detectors and accelerator complex of a linear collider covering both the CLIC and ILC options. Among the topics presented and discussed will be the progress towards the CLIC Conceptual Design Report in 2011, the ILC Technical Design Report in 2012, physics and detector studies linked to these reports, and an increasing numbers of common working group activities. The seminar will give an overview of these topics and also CERN?s linear collider studies, focusing on current activities and initial plans for the period 2011-16. n.b: The Council Chamber is also reserved for this colloquium with a live transmission from the Main Auditorium.

  13. IMPACTS: Industrial Technologies Program, Summary of Program...

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

    IMPACTS: Industrial Technologies Program, Summary of Program Results for CY2009 IMPACTS: Industrial Technologies Program, Summary of Program Results for CY2009 ...

  14. Light Water Reactor Sustainability Program - Integrated Program...

    Energy Savers

    Light Water Reactor Sustainability Program - Integrated Program Plan Light Water Reactor Sustainability Program - Integrated Program Plan The Light Water Reactor Sustainability ...

  15. Counterintelligence Program

    Directives, Delegations, and Requirements [Office of Management (MA)]

    1992-09-04

    To establish the policies, procedures, and specific responsibilities for the Department of Energy (DOE) Counterintelligence (CI) Program. This directive does not cancel any other directive.

  16. Programming Stage

    Directives, Delegations, and Requirements [Office of Management (MA)]

    1997-05-21

    This chapter addresses plans for the acquisition and installation of operating environment hardware and software and design of a training program.

  17. Program Description

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

    their potential and pursue opportunities in science, technology, engineering and mathematics. Through Expanding Your Horizon (EYH) Network programs, we provide STEM role models...

  18. exercise program

    National Nuclear Security Administration (NNSA)

    and dispose of many different hazardous substances, including radioactive materials, toxic chemicals, and biological agents and toxins.

    There are a few programs NNSA uses...

  19. Program Description

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

    Applied Geophysical Experience, is a unique educational program designed to introduce students in geophysics and related fields to "hands on" geophysical exploration and research....

  20. Volunteer Program

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

    National VolunteerMatch Retired and Senior Volunteer Program United Way of Northern New Mexico United Way of Santa Fe County Giving Employee Giving Campaign Holiday Food Drive...

  1. Special Programs

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

    and Application Center for Hydrogen Energy Research Programs ARPA-E Basic Energy Sciences ... Sea State Contour) Code Online Abstracts and Reports Water Power Personnel ...

  2. Counterintelligence Program

    Directives, Delegations, and Requirements [Office of Management (MA)]

    2004-12-10

    The Order establishes Counterintelligence Program requirements and responsibilities for the Department of Energy, including the National Nuclear Security Administration. Supersedes DOE 5670.3.

  3. Program Description

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

    Program Description Inspiring girls to recognize their potential and pursue opportunities in science, technology, engineering and mathematics. Through Expanding Your Horizon (EYH) ...

  4. Special Programs

    Office of Energy Efficiency and Renewable Energy (EERE)

    Headquarters Human Resources Operations promotes a variety of hiring flexibilities for managers to attract a diverse workforce, from Student Internship Program opportunities (Pathways), Veteran...

  5. Student Internship Programs Program Description

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

    Student Internship Programs Program Description The objective of the Laboratory's student internship programs is to provide students with opportunities for meaningful hands- on experience supporting educational progress in their selected scientific or professional fields. The most significant impact of these internship experiences is observed in the intellectual growth experienced by the participants. Student interns are able to appreciate the practical value of their education efforts in their

  6. Program Description | Robotics Internship Program

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

    March 4, 2016. Apply Now for the Robotics Internship About the Internship Program Description Start of Appointment Renewal of Appointment End of Appointment Stipend Information...

  7. Microfabricated linear Paul-Straubel ion trap

    DOE Patents [OSTI]

    Mangan, Michael A.; Blain, Matthew G.; Tigges, Chris P.; Linker, Kevin L.

    2011-04-19

    An array of microfabricated linear Paul-Straubel ion traps can be used for mass spectrometric applications. Each ion trap comprises two parallel inner RF electrodes and two parallel outer DC control electrodes symmetric about a central trap axis and suspended over an opening in a substrate. Neighboring ion traps in the array can share a common outer DC control electrode. The ions confined transversely by an RF quadrupole electric field potential well on the ion trap axis. The array can trap a wide array of ions.

  8. Rf power sources for linear colliders

    SciTech Connect (OSTI)

    Allen, M.A.; Callin, R.S.; Caryotakis, G.; Deruyter, H.; Eppley, K.R.; Fant, K.S.; Farkas, Z.D.; Fowkes, W.R.; Hoag, H.A.; Feinstein, J.; Ko, K.; Koontz, R.F.; Kroll, N.M.; Lavine, T.L.; Lee, T.G.; Loew, G.A.; Miller, R.H.; Nelson, E.M.; Ruth, R.D.; Vlieks, A.E.; Wang, J.W.; Wilson, P.B. ); Boyd, J.K.; Houk, T.; Ryne, R.D.; Westenskow, G.A.; Yu, S.S. (Lawrence Live

    1990-06-01

    The next generation of linear colliders requires peak power sources of over 200 MW per meter at frequencies above 10 GHz at pulse widths of less than 100 nsec. Several power sources are under active development, including a conventional klystron with rf pulse compression, a relativistic klystron (RK) and a crossed-field amplifier. Power from one of these has energized a 0.5 meter two- section High Gradient Accelerator (HGA) and accelerated a beam at over 80 MeV meter. Results of tests with these experimental devices are presented here.

  9. Micromechanism linear actuator with capillary force sealing

    DOE Patents [OSTI]

    Sniegowski, Jeffry J.

    1997-01-01

    A class of micromachine linear actuators whose function is based on gas driven pistons in which capillary forces are used to seal the gas behind the piston. The capillary forces also increase the amount of force transmitted from the gas pressure to the piston. In a major subclass of such devices, the gas bubble is produced by thermal vaporization of a working fluid. Because of their dependence on capillary forces for sealing, such devices are only practical on the sub-mm size scale, but in that regime they produce very large force times distance (total work) values.

  10. Limits on linearity of missile allocation optimization

    SciTech Connect (OSTI)

    Canavan, G.H.

    1997-12-01

    Optimizations of missile allocation based on linearized exchange equations produce accurate allocations, but the limits of validity of the linearization are not known. These limits are explored in the context of the upload of weapons by one side to initially small, equal forces of vulnerable and survivable weapons. The analysis compares analytic and numerical optimizations and stability induces based on aggregated interactions of the two missile forces, the first and second strikes they could deliver, and they resulting costs. This note discusses the costs and stability indices induced by unilateral uploading of weapons to an initially symmetrical low force configuration. These limits are quantified for forces with a few hundred missiles by comparing analytic and numerical optimizations of first strike costs. For forces of 100 vulnerable and 100 survivable missiles on each side, the analytic optimization agrees closely with the numerical solution. For 200 vulnerable and 200 survivable missiles on each side, the analytic optimization agrees with the induces to within about 10%, but disagrees with the allocation of the side with more weapons by about 50%. The disagreement comes from the interaction of the possession of more weapons with the shift of allocation from missiles to value that they induce.

  11. Linear dimensions and volumes of human lungs

    DOE PAGES-Beta [OSTI]

    Hickman, David P.

    2012-03-30

    TOTAL LUNG Capacity is defined as “the inspiratory capacity plus the functional residual capacity; the volume of air contained in the lungs at the end of a maximal inspiration; also equals vital capacity plus residual volume” (from MediLexicon.com). Within the Results and Discussion section of their April 2012 Health Physics paper, Kramer et al. briefly noted that the lungs of their experimental subjects were “not fully inflated.” By definition and failure to obtain maximal inspiration, Kramer et. al. did not measure Total Lung Capacity (TLC). The TLC equation generated from this work will tend to underestimate TLC and does notmore » improve or update total lung capacity data provided by ICRP and others. Likewise, the five linear measurements performed by Kramer et. al. are only representative of the conditions of the measurement (i.e., not at-rest volume, but not fully inflated either). While there was significant work performed and the data are interesting, the data does not represent a maximal situation, a minimal situation, or an at-rest situation. Moreover, while interesting, the linear data generated by this study is limited by the conditions of the experiment and may not be fully comparative with other lung or inspiratory parameters, measures, or physical dimensions.« less

  12. Terahertz-driven linear electron acceleration

    SciTech Connect (OSTI)

    Nanni, Emilio A.; Huang, Wenqian R.; Hong, Kyung-Han; Ravi, Koustuban; Fallahi, Arya; Moriena, Gustavo; Dwayne Miller, R. J.; Kärtner, Franz X.

    2015-10-06

    The cost, size and availability of electron accelerators are dominated by the achievable accelerating gradient. Conventional high-brightness radio-frequency accelerating structures operate with 30–50 MeVm-1 gradients. Electron accelerators driven with optical or infrared sources have demonstrated accelerating gradients orders of magnitude above that achievable with conventional radio-frequency structures. However, laser-driven wakefield accelerators require intense femtosecond sources and direct laser-driven accelerators suffer from low bunch charge, sub-micron tolerances and sub-femtosecond timing requirements due to the short wavelength of operation. Here we demonstrate linear acceleration of electrons with keV energy gain using optically generated terahertz pulses. Terahertz-driven accelerating structures enable high-gradient electron/proton accelerators with simple accelerating structures, high repetition rates and significant charge per bunch. As a result, these ultra-compact terahertz accelerators with extremely short electron bunches hold great potential to have a transformative impact for free electron lasers, linear colliders, ultrafast electron diffraction, X-ray science and medical therapy with X-rays and electron beams.

  13. Terahertz-driven linear electron acceleration

    DOE PAGES-Beta [OSTI]

    Nanni, Emilio A.; Huang, Wenqian R.; Hong, Kyung-Han; Ravi, Koustuban; Fallahi, Arya; Moriena, Gustavo; Dwayne Miller, R. J.; Kärtner, Franz X.

    2015-10-06

    The cost, size and availability of electron accelerators are dominated by the achievable accelerating gradient. Conventional high-brightness radio-frequency accelerating structures operate with 30–50 MeVm-1 gradients. Electron accelerators driven with optical or infrared sources have demonstrated accelerating gradients orders of magnitude above that achievable with conventional radio-frequency structures. However, laser-driven wakefield accelerators require intense femtosecond sources and direct laser-driven accelerators suffer from low bunch charge, sub-micron tolerances and sub-femtosecond timing requirements due to the short wavelength of operation. Here we demonstrate linear acceleration of electrons with keV energy gain using optically generated terahertz pulses. Terahertz-driven accelerating structures enable high-gradient electron/proton acceleratorsmore » with simple accelerating structures, high repetition rates and significant charge per bunch. As a result, these ultra-compact terahertz accelerators with extremely short electron bunches hold great potential to have a transformative impact for free electron lasers, linear colliders, ultrafast electron diffraction, X-ray science and medical therapy with X-rays and electron beams.« less

  14. Program Overview

    Energy.gov [DOE]

    The culture of the DOE community will be based on standards. Technical standards will formally integrate part of all DOE facility, program and project activities. The DOE will be recognized as a...

  15. Integrated Program

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

    Program Review (IPR) Quarterly Business Review (QBR) Access to Capital Debt Management July 2013 Aug. 2013 Sept. 2013 Oct. 2013 Nov. 2013 Dec. 2013 Jan. 2014 Feb. 2014 March...

  16. Deconvolution Program

    Energy Science and Technology Software Center (OSTI)

    1999-02-18

    The program is suitable for a lot of applications in applied mathematics, experimental physics, signal analytical system and some engineering applications range i.e. deconvolution spectrum, signal analysis and system property analysis etc.

  17. Programming models

    SciTech Connect (OSTI)

    Daniel, David J; Mc Pherson, Allen; Thorp, John R; Barrett, Richard; Clay, Robert; De Supinski, Bronis; Dube, Evi; Heroux, Mike; Janssen, Curtis; Langer, Steve; Laros, Jim

    2011-01-14

    A programming model is a set of software technologies that support the expression of algorithms and provide applications with an abstract representation of the capabilities of the underlying hardware architecture. The primary goals are productivity, portability and performance.

  18. Quality Program

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

    ... for Preparing QA Project Plans." 8.4 American Society of Mechanical Engineers (ASME)NQA-1, "Quality Assurance Program Requirements for Nuclear Facilities." 8.5 American Nuclear ...

  19. Science Programs

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

    The focal point for basic and applied R&D programs with a primary focus on energy but also encompassing medical, biotechnology, high-energy physics, and advanced scientific ...

  20. Program Analyst

    Energy.gov [DOE]

    A successful candidate in this position will serve as an Program Analyst for the System Operations team in the area of regulatory compliance. The successful candidate will also become a subject...

  1. Volunteer Program

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

    Volunteer Program Volunteer Program Our good neighbor pledge includes active employee engagement in our communities through volunteering. More than 3,000 current and retired Lab employees have logged more than 1.8 million volunteer hours since 2007. August 19, 2015 Los Alamos National Laboratory employee volunteers with Mountain Canine Corps Lab employee Debbi Miller volunteers for the Mountain Canine Corps with her search and rescue dogs. She also volunteers with another search and rescue

  2. Program Managers

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

    Program Managers Program Managers Enabling remarkable discoveries and tools that transform our understanding of energy and matter and advance national, economic, and energy security. Advanced Scientific Computing Applied Mathematics: Pieter Swart, T-5 Computer Science: Pat McCormick, CCS-7 Computational Partnerships: Galen Shipman, CCS-7 Basic Energy Sciences Materials Sciences & Engineering: Toni Taylor, ADCLES-DO CINT National User Facility: Alex Lacerda, MPA-CINT (Acting Director)

  3. Program Summaries

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

    Program Summaries Basic Energy Sciences (BES) BES Home About Research Facilities Science Highlights Benefits of BES Funding Opportunities Basic Energy Sciences Advisory Committee (BESAC) Community Resources Program Summaries Brochures Reports Accomplishments Presentations BES and Congress Science for Energy Flow Seeing Matter Nano for Energy Scale of Things Chart Contact Information Basic Energy Sciences U.S. Department of Energy SC-22/Germantown Building 1000 Independence Ave., SW Washington,

  4. Educational Programs

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

    Educational Programs Educational Programs A collaboration between Los Alamos National Laboratory and the University of California at San Diego (UCSD) Jacobs School of Engineering Contact Institute Director Charles Farrar (505) 663-5330 Email UCSD EI Director Michael Todd (858) 534-5951 Professional Staff Assistant Ellie Vigil (505) 667-2818 Email Administrative Assistant Rebecca Duran (505) 665-8899 Email There are two educational components to the Engineering Institute. The Los Alamos Dynamic

  5. Shortcuts to adiabaticity from linear response theory

    SciTech Connect (OSTI)

    Acconcia, Thiago V.; Bonança, Marcus V. S.; Deffner, Sebastian

    2015-10-23

    A shortcut to adiabaticity is a finite-time process that produces the same final state as would result from infinitely slow driving. We show that such shortcuts can be found for weak perturbations from linear response theory. Moreover, with the help of phenomenological response functions, a simple expression for the excess work is found—quantifying the nonequilibrium excitations. For two specific examples, i.e., the quantum parametric oscillator and the spin 1/2 in a time-dependent magnetic field, we show that finite-time zeros of the excess work indicate the existence of shortcuts. We finally propose a degenerate family of protocols, which facilitates shortcuts to adiabaticity for specific and very short driving times.

  6. Radio frequency focused interdigital linear accelerator

    DOE Patents [OSTI]

    Swenson, Donald A.; Starling, W. Joel

    2006-08-29

    An interdigital (Wideroe) linear accelerator employing drift tubes, and associated support stems that couple to both the longitudinal and support stem electromagnetic fields of the linac, creating rf quadrupole fields along the axis of the linac to provide transverse focusing for the particle beam. Each drift tube comprises two separate electrodes operating at different electrical potentials as determined by cavity rf fields. Each electrode supports two fingers, pointing towards the opposite end of the drift tube, forming a four-finger geometry that produces an rf quadrupole field distribution along its axis. The fundamental periodicity of the structure is equal to one half of the particle wavelength .beta..lamda., where .beta. is the particle velocity in units of the velocity of light and .lamda. is the free space wavelength of the rf. Particles are accelerated in the gaps between drift tubes. The particle beam is focused in regions inside the drift tubes.

  7. TLD linearity vs. beam energy and modality

    SciTech Connect (OSTI)

    Troncalli, Andrew J.; Chapman, Jane

    2002-12-31

    Thermoluminescent dosimetry (TLD) is considered to be a valuable dosimetric tool in determining patient dose. Lithium fluoride doped with magnesium and titanium (TLD-100) is widely used, as it does not display widely divergent energy dependence. For many years, we have known that TLD-100 shows supralinearity to dose. In a radiotherapy clinic, there are multiple energies and modality beams. This work investigates whether individual linearity corrections must be used for each beam or whether a single correction can be applied to all beams. The response of TLD as a function of dose was measured from 25 cGy to 1000 cGy on both electrons and photons from 6 to 18 MeV. This work shows that, within our measurement uncertainty, TLD-100 exhibits supralinearity at all megavoltage energies and modalities.

  8. Faraday rotation assisted by linearly polarized light

    SciTech Connect (OSTI)

    Choi, Jai Min; Kim, Jang Myun; Cho, D.

    2007-11-15

    We demonstrate a type of chiral effect of an atomic medium. Polarization rotation of a probe beam is observed only when both a magnetic field and a linearly polarized coupling beam are present. We compare it with other chiral effects like optical activity, the Faraday effect, and the optically induced Faraday effect from the viewpoint of spatial inversion and time reversal transformations. As a theoretical model we consider a five-level configuration involving the cesium D2 transition. We use spin-polarized cold cesium atoms trapped in a magneto-optical trap to measure the polarization rotation versus probe detuning. The result shows reasonable agreement with a calculation from the master equation of the five-level configuration.

  9. Shortcuts to adiabaticity from linear response theory

    DOE PAGES-Beta [OSTI]

    Acconcia, Thiago V.; Bonança, Marcus V. S.; Deffner, Sebastian

    2015-10-23

    A shortcut to adiabaticity is a finite-time process that produces the same final state as would result from infinitely slow driving. We show that such shortcuts can be found for weak perturbations from linear response theory. Moreover, with the help of phenomenological response functions, a simple expression for the excess work is found—quantifying the nonequilibrium excitations. For two specific examples, i.e., the quantum parametric oscillator and the spin 1/2 in a time-dependent magnetic field, we show that finite-time zeros of the excess work indicate the existence of shortcuts. We finally propose a degenerate family of protocols, which facilitates shortcuts tomore » adiabaticity for specific and very short driving times.« less

  10. Sfermion precision measurements at a linear collider

    SciTech Connect (OSTI)

    A. Freitas et al.

    2003-09-25

    At future e{sup +}e{sup -} linear colliders, the event rates and clean signals of scalar fermion production--in particular for the scalar leptons--allow very precise measurements of their masses and couplings and the determination of their quantum numbers. Various methods are proposed for extracting these parameters from the data at the sfermion thresholds and in the continuum. At the same time, NLO radiative corrections and non-zero width effects have been calculated in order to match the experimental accuracy. The substantial mixing expected for the third generation sfermions opens up additional opportunities. Techniques are presented for determining potential CP-violating phases and for extracting tan {beta} from the stau sector, in particular at high values. The consequences of possible large mass differences in the stop and sbottom system are explored in dedicated analyses.

  11. Linear nozzle with tailored gas plumes

    DOE Patents [OSTI]

    Leon, David D.; Kozarek, Robert L.; Mansour, Adel; Chigier, Norman

    2001-01-01

    There is claimed a method for depositing fluid material from a linear nozzle in a substantially uniform manner across and along a surface. The method includes directing gaseous medium through said nozzle to provide a gaseous stream at the nozzle exit that entrains fluid material supplied to the nozzle, said gaseous stream being provided with a velocity profile across the nozzle width that compensates for the gaseous medium's tendency to assume an axisymmetric configuration after leaving the nozzle and before reaching the surface. There is also claimed a nozzle divided into respective side-by-side zones, or preferably chambers, through which a gaseous stream can be delivered in various velocity profiles across the width of said nozzle to compensate for the tendency of this gaseous medium to assume an axisymmetric configuration.

  12. Linear nozzle with tailored gas plumes

    DOE Patents [OSTI]

    Kozarek, Robert L.; Straub, William D.; Fischer, Joern E.; Leon, David D.

    2003-01-01

    There is claimed a method for depositing fluid material from a linear nozzle in a substantially uniform manner across and along a surface. The method includes directing gaseous medium through said nozzle to provide a gaseous stream at the nozzle exit that entrains fluid material supplied to the nozzle, said gaseous stream being provided with a velocity profile across the nozzle width that compensates for the gaseous medium's tendency to assume an axisymmetric configuration after leaving the nozzle and before reaching the surface. There is also claimed a nozzle divided into respective side-by-side zones, or preferably chambers, through which a gaseous stream can be delivered in various velocity profiles across the width of said nozzle to compensate for the tendency of this gaseous medium to assume an axisymmetric configuration.

  13. Linear-array systems for aerospace NDE

    SciTech Connect (OSTI)

    Smith, Robert A.; Willsher, Stephen J.; Bending, Jamie M.

    1999-12-02

    Rapid large-area inspection of composite structures for impact damage and multi-layered aluminum skins for corrosion has been a recognized priority for several years in both military and civil aerospace applications. Approaches to this requirement have followed two clearly different routes: the development of novel large-area inspection systems, and the enhancement of current ultrasonic or eddy-current methods to reduce inspection times. Ultrasonic inspection is possible with standard flaw detection equipment but the addition of a linear ultrasonic array could reduce inspection times considerably. In order to investigate their potential, 9-element and 17-element linear ultrasonic arrays for composites, and 64-element arrays for aluminum skins, have been developed to DERA specifications for use with the ANDSCAN area scanning system. A 5 m{sup 2} composite wing surface has been scanned with a scan resolution of approximately 3 mm in 6 hours. With subsequent software and hardware improvements all four composite wing surfaces (top/bottom, left/right) of a military fighter aircraft can potentially be inspected in less than a day. Array technology has been very widely used in the medical ultrasound field although rarely above 10 MHz, whereas lap-joint inspection requires a pulse center-frequency of 12 to 20 MHz in order to resolve the separate interfaces in the lap joint. A 128 mm-long multi-element array of 5 mmx2 mm ultrasonic elements for use with the ANDSCAN scanning software was produced to a DERA specification by an NDT manufacturer with experience in the medical imaging field. This paper analyses the performance of the transducers that have been produced and evaluates their use in scanning systems of different configurations.

  14. 2d PDE Linear Symmetric Matrix Solver

    Energy Science and Technology Software Center (OSTI)

    1983-10-01

    ICCG2 (Incomplete Cholesky factorized Conjugate Gradient algorithm for 2d symmetric problems) was developed to solve a linear symmetric matrix system arising from a 9-point discretization of two-dimensional elliptic and parabolic partial differential equations found in plasma physics applications, such as resistive MHD, spatial diffusive transport, and phase space transport (Fokker-Planck equation) problems. These problems share the common feature of being stiff and requiring implicit solution techniques. When these parabolic or elliptic PDE''s are discretized withmore » finite-difference or finite-element methods,the resulting matrix system is frequently of block-tridiagonal form. To use ICCG2, the discretization of the two-dimensional partial differential equation and its boundary conditions must result in a block-tridiagonal supermatrix composed of elementary tridiagonal matrices. The incomplete Cholesky conjugate gradient algorithm is used to solve the linear symmetric matrix equation. Loops are arranged to vectorize on the Cray1 with the CFT compiler, wherever possible. Recursive loops, which cannot be vectorized, are written for optimum scalar speed. For matrices lacking symmetry, ILUCG2 should be used. Similar methods in three dimensions are available in ICCG3 and ILUCG3. A general source containing extensions and macros, which must be processed by a pre-compiler to obtain the standard FORTRAN source, is provided along with the standard FORTRAN source because it is believed to be more readable. The pre-compiler is not included, but pre-compilation may be performed by a text editor as described in the UCRL-88746 Preprint.« less

  15. Application Program Interface for Engineering and Scientific Applications

    Energy Science and Technology Software Center (OSTI)

    2001-10-18

    An Application Program Interface (API) for engineering and scientific applications. This system allows application developers to write to a single uniform interface, obtaining access to all solvers in the Trilinos framwork. This includes linear solvers, eigensolvers, non-linear solvers, and time-dependent solvers.

  16. CALiPER Application Summary Report 19. LED Linear Pendants

    SciTech Connect (OSTI)

    none,

    2012-10-01

    Report 19 reviews the independently tested performance of nine LED linear pendants and also evaluates a collection of 11 linear pendant products available in both an LED and fluorescent version.

  17. Project Profile: Commercial Development of an Advanced Linear...

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

    Project Profile: Commercial Development of an Advanced Linear-Fresnel-Based CSP Concept SkyFuel logo SkyFuel, under the CSP R&D FOA, is developing a commercial linear-Fresnel-based ...

  18. Student Internship Programs Program Description

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

    for a summer high school student to 75,000 for a Ph.D. student working full-time for a year. Program Coordinator: Scott Robbins Email: srobbins@lanl.gov Phone number: 663-5621...

  19. Text-Alternative Version: LED Replacements for Linear Fluorescent Lamps |

    Energy Savers

    Department of Energy Replacements for Linear Fluorescent Lamps Text-Alternative Version: LED Replacements for Linear Fluorescent Lamps Below is the text-alternative version of the "LED Replacements for Linear Fluorescent Lamps" webcast, held June 20, 2011. Theresa Shoemaker: Welcome, ladies and gentlemen. I'm Terry Shoemaker with the Pacific Northwest National Laboratory, and I'd like to welcome you to today's webcast, "LED Replacements for Linear Fluorescent Lamps,"

  20. Postdoctoral Program Program Description The Postdoctoral (Postdoc...

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

    Postdoctoral Program Program Description The Postdoctoral (Postdoc) Research program offers the opportunity for appointees to perform research in a robust scientific R&D...

  1. Machinist Pipeline/Apprentice Program Program Description

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

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

  2. Award DE-FG02-04ER52655 Final Technical Report: Interior Point Algorithms for Optimization Problems

    SciTech Connect (OSTI)

    O'Leary, Dianne P.; Tits, Andre

    2014-04-03

    Over the period of this award we developed an algorithmic framework for constraint reduction in linear programming (LP) and convex quadratic programming (QP), proved convergence of our algorithms, and applied them to a variety of applications, including entropy-based moment closure in gas dynamics.

  3. Governance of the International Linear Collider Project

    SciTech Connect (OSTI)

    Foster, B.; Barish, B.; Delahaye, J.P.; Dosselli, U.; Elsen, E.; Harrison, M.; Mnich, J.; Paterson, J.M.; Richard, F.; Stapnes, S.; Suzuki, A.; Wormser, G.; Yamada, S.; /KEK, Tsukuba

    2012-05-31

    Governance models for the International Linear Collider Project are examined in the light of experience from similar international projects around the world. Recommendations for one path which could be followed to realize the ILC successfully are outlined. The International Linear Collider (ILC) is a unique endeavour in particle physics; fully international from the outset, it has no 'host laboratory' to provide infrastructure and support. The realization of this project therefore presents unique challenges, in scientific, technical and political arenas. This document outlines the main questions that need to be answered if the ILC is to become a reality. It describes the methodology used to harness the wisdom displayed and lessons learned from current and previous large international projects. From this basis, it suggests both general principles and outlines a specific model to realize the ILC. It recognizes that there is no unique model for such a laboratory and that there are often several solutions to a particular problem. Nevertheless it proposes concrete solutions that the authors believe are currently the best choices in order to stimulate discussion and catalyze proposals as to how to bring the ILC project to fruition. The ILC Laboratory would be set up by international treaty and be governed by a strong Council to whom a Director General and an associated Directorate would report. Council would empower the Director General to give strong management to the project. It would take its decisions in a timely manner, giving appropriate weight to the financial contributions of the member states. The ILC Laboratory would be set up for a fixed term, capable of extension by agreement of all the partners. The construction of the machine would be based on a Work Breakdown Structure and value engineering and would have a common cash fund sufficiently large to allow the management flexibility to optimize the project's construction. Appropriate contingency, clearly

  4. Program Year 2008 State Energy Program Formula

    Energy.gov [DOE]

    U.S. Department of Energy (DOE) State Energy Program (SEP), SEP Program Guidance Fiscal Year 2008, Program Year 2008, energy efficiency and renewable energy programs in the states, DOE Office of Energy Efficiency and Renewable Energy

  5. Precision envelope detector and linear rectifier circuitry

    DOE Patents [OSTI]

    Davis, Thomas J.

    1980-01-01

    Disclosed is a method and apparatus for the precise linear rectification and envelope detection of oscillatory signals. The signal is applied to a voltage-to-current converter which supplies current to a constant current sink. The connection between the converter and the sink is also applied through a diode and an output load resistor to a ground connection. The connection is also connected to ground through a second diode of opposite polarity from the diode in series with the load resistor. Very small amplitude voltage signals applied to the converter will cause a small change in the output current of the converter, and the difference between the output current and the constant current sink will be applied either directly to ground through the single diode, or across the output load resistor, dependent upon the polarity. Disclosed also is a full-wave rectifier utilizing constant current sinks and voltage-to-current converters. Additionally, disclosed is a combination of the voltage-to-current converters with differential integrated circuit preamplifiers to boost the initial signal amplitude, and with low pass filtering applied so as to obtain a video or signal envelope output.

  6. Linear air-fuel sensor development

    SciTech Connect (OSTI)

    Garzon, F.; Miller, C.

    1996-12-14

    The electrochemical zirconia solid electrolyte oxygen sensor, is extensively used for monitoring oxygen concentrations in various fields. They are currently utilized in automobiles to monitor the exhaust gas composition and control the air-to-fuel ratio, thus reducing harmful emission components and improving fuel economy. Zirconia oxygen sensors, are divided into two classes of devices: (1) potentiometric or logarithmic air/fuel sensors; and (2) amperometric or linear air/fuel sensors. The potentiometric sensors are ideally suited to monitor the air-to-fuel ratio close to the complete combustion stoichiometry; a value of about 14.8 to 1 parts by volume. This occurs because the oxygen concentration changes by many orders of magnitude as the air/fuel ratio is varied through the stoichiometric value. However, the potentiometric sensor is not very sensitive to changes in oxygen partial pressure away from the stoichiometric point due to the logarithmic dependence of the output voltage signal on the oxygen partial pressure. It is often advantageous to operate gasoline power piston engines with excess combustion air; this improves fuel economy and reduces hydrocarbon emissions. To maintain stable combustion away from stoichiometry, and enable engines to operate in the excess oxygen (lean burn) region several limiting-current amperometric sensors have been reported. These sensors are based on the electrochemical oxygen ion pumping of a zirconia electrolyte. They typically show reproducible limiting current plateaus with an applied voltage caused by the gas diffusion overpotential at the cathode.

  7. Liquid cooled, linear focus solar cell receiver

    DOE Patents [OSTI]

    Kirpich, Aaron S.

    1985-01-01

    Separate structures for electrical insulation and thermal conduction are established within a liquid cooled, linear focus solar cell receiver for use with parabolic or Fresnel optical concentrators. The receiver includes a V-shaped aluminum extrusion having a pair of outer faces each formed with a channel receiving a string of solar cells in thermal contact with the extrusion. Each cell string is attached to a continuous glass cover secured within the channel with spring clips to isolate the string from the external environment. Repair or replacement of solar cells is effected simply by detaching the spring clips to remove the cover/cell assembly without interrupting circulation of coolant fluid through the receiver. The lower surface of the channel in thermal contact with the cells of the string is anodized to establish a suitable standoff voltage capability between the cells and the extrusion. Primary electrical insulation is provided by a dielectric tape disposed between the coolant tube and extrusion. Adjacent solar cells are soldered to interconnect members designed to accommodate thermal expansion and mismatches. The coolant tube is clamped into the extrusion channel with a releasably attachable clamping strip to facilitate easy removal of the receiver from the coolant circuit.

  8. Liquid cooled, linear focus solar cell receiver

    DOE Patents [OSTI]

    Kirpich, A.S.

    1983-12-08

    Separate structures for electrical insulation and thermal conduction are established within a liquid cooled, linear focus solar cell receiver for use with parabolic or Fresnel optical concentrators. The receiver includes a V-shaped aluminum extrusion having a pair of outer faces each formed with a channel receiving a string of solar cells in thermal contact with the extrusion. Each cell string is attached to a continuous glass cover secured within the channel with spring clips to isolate the string from the external environment. Repair or replacement of solar cells is effected simply by detaching the spring clips to remove the cover/cell assembly without interrupting circulation of coolant fluid through the receiver. The lower surface of the channel in thermal contact with the cells of the string is anodized to establish a suitable standoff voltage capability between the cells and the extrusion. Primary electrical insulation is provided by a dielectric tape disposed between the coolant tube and extrusion. Adjacent solar cells are soldered to interconnect members designed to accommodate thermal expansion and mismatches. The coolant tube is clamped into the extrusion channel with a releasably attachable clamping strip to facilitate easy removal of the receiver from the coolant circuit.

  9. VINETA II: A linear magnetic reconnection experiment

    SciTech Connect (OSTI)

    Bohlin, H. Von Stechow, A.; Rahbarnia, K.; Grulke, O.; Klinger, T.; Ernst-Moritz-Arndt University, Domstr. 11, 17489 Greifswald

    2014-02-15

    A linear experiment dedicated to the study of driven magnetic reconnection is presented. The new device (VINETA II) is suitable for investigating both collisional and near collisionless reconnection. Reconnection is achieved by externally driving magnetic field lines towards an X-point, inducing a current in the background plasma which consequently modifies the magnetic field topology. Owing to the open field line configuration of the experiment, the current is limited by the axial sheath boundary conditions. A plasma gun is used as an additional electron source in order to counterbalance the charge separation effects and supply the required current. Two drive methods are used in the device. First, an oscillating current through two parallel conductors drive the reconnection. Second, a stationary X-point topology is formed by the parallel conductors, and the drive is achieved by an oscillating current through a third conductor. In the first setup, the magnetic field of the axial plasma current dominates the field topology near the X-point throughout most of the drive. The second setup allows for the amplitude of the plasma current as well as the motion of the flux to be set independently of the X-point topology of the parallel conductors.

  10. PROGRAM ABSTRACTS

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

    & DEVELOPMENT: PROGRAM ABSTRACTS Energy Efficiency and Renewable Energy Office of Transportation Technologies Office of Advanced Automotive Technologies Catalyst Layer Bipolar Plate Electrode Backing Layers INTEGRATED SYSTEMS Polymer Electrolyte Membrane Fuel Cells Fuel Cell Stack PEM STACK & STACK COMPONENTS Fuel Cell Stack System Air Management System Fuel Processor System For Transportation June 1999 ENERGY EFFICIENCY AND RENEWABLE ENERGY OFFICE OF TRANSPORTATION TECHNOLOGIES OFFICE

  11. Linear Fixed-Field Multi-Pass Arcs for Recirculating Linear Accelerators

    SciTech Connect (OSTI)

    V.S. Morozov, S.A. Bogacz, Y.R. Roblin, K.B. Beard

    2012-06-01

    Recirculating Linear Accelerators (RLA's) provide a compact and efficient way of accelerating particle beams to medium and high energies by reusing the same linac for multiple passes. In the conventional scheme, after each pass, the different energy beams coming out of the linac are separated and directed into appropriate arcs for recirculation, with each pass requiring a separate fixed-energy arc. In this paper we present a concept of an RLA return arc based on linear combined-function magnets, in which two and potentially more consecutive passes with very different energies are transported through the same string of magnets. By adjusting the dipole and quadrupole components of the constituting linear combined-function magnets, the arc is designed to be achromatic and to have zero initial and final reference orbit offsets for all transported beam energies. We demonstrate the concept by developing a design for a droplet-shaped return arc for a dog-bone RLA capable of transporting two beam passes with momenta different by a factor of two. We present the results of tracking simulations of the two passes and lay out the path to end-to-end design and simulation of a complete dog-bone RLA.

  12. High-gradient compact linear accelerator

    DOE Patents [OSTI]

    Carder, B.M.

    1998-05-26

    A high-gradient linear accelerator comprises a solid-state stack in a vacuum of five sets of disc-shaped Blumlein modules each having a center hole through which particles are sequentially accelerated. Each Blumlein module is a sandwich of two outer conductive plates that bracket an inner conductive plate positioned between two dielectric plates with different thicknesses and dielectric constants. A third dielectric core in the shape of a hollow cylinder forms a casing down the series of center holes, and it has a dielectric constant different that the two dielectric plates that sandwich the inner conductive plate. In operation, all the inner conductive plates are charged to the same DC potential relative to the outer conductive plates. Next, all the inner conductive plates are simultaneously shorted to the outer conductive plates at the outer diameters. The signal short will propagate to the inner diameters at two different rates in each Blumlein module. A faster wave propagates quicker to the third dielectric core across the dielectric plates with the closer spacing and lower dielectric constant. When the faster wave reaches the inner extents of the outer and inner conductive plates, it reflects back outward and reverses the field in that segment of the dielectric core. All the field segments in the dielectric core are then in unipolar agreement until the slower wave finally propagates to the third dielectric core across the dielectric plates with the wider spacing and higher dielectric constant. During such unipolar agreement, particles in the core are accelerated with gradients that exceed twenty megavolts per meter. 10 figs.

  13. High-gradient compact linear accelerator

    DOE Patents [OSTI]

    Carder, Bruce M.

    1998-01-01

    A high-gradient linear accelerator comprises a solid-state stack in a vacuum of five sets of disc-shaped Blumlein modules each having a center hole through which particles are sequentially accelerated. Each Blumlein module is a sandwich of two outer conductive plates that bracket an inner conductive plate positioned between two dielectric plates with different thicknesses and dielectric constants. A third dielectric core in the shape of a hollow cylinder forms a casing down the series of center holes, and it has a dielectric constant different that the two dielectric plates that sandwich the inner conductive plate. In operation, all the inner conductive plates are charged to the same DC potential relative to the outer conductive plates. Next, all the inner conductive plates are simultaneously shorted to the outer conductive plates at the outer diameters. The signal short will propagate to the inner diameters at two different rates in each Blumlein module. A faster wave propagates quicker to the third dielectric core across the dielectric plates with the closer spacing and lower dielectric constant. When the faster wave reaches the inner extents of the outer and inner conductive plates, it reflects back outward and reverses the field in that segment of the dielectric core. All the field segments in the dielectric core are then in unipolar agreement until the slower wave finally propagates to the third dielectric core across the dielectric plates with the wider spacing and higher dielectric constant. During such unipolar agreement, particles in the core are accelerated with gradients that exceed twenty megavolts per meter.

  14. 2d PDE Linear Asymmetric Matrix Solver

    Energy Science and Technology Software Center (OSTI)

    1983-10-01

    ILUCG2 (Incomplete LU factorized Conjugate Gradient algorithm for 2d problems) was developed to solve a linear asymmetric matrix system arising from a 9-point discretization of two-dimensional elliptic and parabolic partial differential equations found in plasma physics applications, such as plasma diffusion, equilibria, and phase space transport (Fokker-Planck equation) problems. These equations share the common feature of being stiff and requiring implicit solution techniques. When these parabolic or elliptic PDE''s are discretized with finite-difference or finite-elementmore » methods, the resulting matrix system is frequently of block-tridiagonal form. To use ILUCG2, the discretization of the two-dimensional partial differential equation and its boundary conditions must result in a block-tridiagonal supermatrix composed of elementary tridiagonal matrices. A generalization of the incomplete Cholesky conjugate gradient algorithm is used to solve the matrix equation. Loops are arranged to vectorize on the Cray1 with the CFT compiler, wherever possible. Recursive loops, which cannot be vectorized, are written for optimum scalar speed. For problems having a symmetric matrix ICCG2 should be used since it runs up to four times faster and uses approximately 30% less storage. Similar methods in three dimensions are available in ICCG3 and ILUCG3. A general source, containing extensions and macros, which must be processed by a pre-compiler to obtain the standard FORTRAN source, is provided along with the standard FORTRAN source because it is believed to be more readable. The pre-compiler is not included, but pre-compilation may be performed by a text editor as described in the UCRL-88746 Preprint.« less

  15. Program Description

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

    Program Description The Los Alamos STEM Challenge gives your students a unique opportunity to envision the future years of discovery at LANL. Students will develop 21st century skills as they collaborate in teams to research LANL projects and propose innovative future projects. They apply creativity and critical thinking skills as they visualize their own ideas through posters, videos, apps or essays describing potential future projects at LANL. Students are encouraged to learn about the

  16. Programming Libraries

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

    Libraries Programming Libraries ALTD Automatic Library Tracking Database Infrastructure To track and monitor library usage and better serve your software needs, we have enabled the Automatic Library Tracking Database (ALTD) on our prodcution systems, Hopper and Edison. ALTD is also availailable on Carver. ALTD, originally developed by National Institute for Computational Sciences and further developed at NERSC, automatically and transparently tracks all libraries linked into an application at

  17. Programming models

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

    NERSC-8 Procurement Programming models File Storage and I/O Edison PDSF Genepool Queues and Scheduling Retired Systems Storage & File Systems Application Performance Data & Analytics Job Logs & Statistics Training & Tutorials Software Policies User Surveys NERSC Users Group Help Staff Blogs Request Repository Mailing List Need Help? Out-of-hours Status and Password help Call operations: 1-800-66-NERSC, option 1 or 510-486-6821 Account Support https://nim.nersc.gov

  18. Program Development

    SciTech Connect (OSTI)

    Atencio, Julian J.

    2014-05-01

    This presentation covers how to go about developing a human reliability program. In particular, it touches on conceptual thinking, raising awareness in an organization, the actions that go into developing a plan. It emphasizes evaluating all positions, eliminating positions from the pool due to mitigating factors, and keeping the process transparent. It lists components of the process and objectives in process development. It also touches on the role of leadership and the necessity for audit.

  19. Maryland Efficiency Program Options

    Office of Energy Efficiency and Renewable Energy (EERE)

    Maryland Efficiency Program Options, from the Tool Kit Framework: Small Town University Energy Program (STEP).

  20. STEP Program Benchmark Report

    Energy.gov [DOE]

    STEP Program Benchmark Report, from the Tool Kit Framework: Small Town University Energy Program (STEP).

  1. Program Evaluation: Program Logic | Department of Energy

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

    Program Logic Program Evaluation: Program Logic Step four will help you develop a logical model for your program (learn more about the other steps in general program evaluations): What is a Logic Model? Benefits of Using Logic Modeling Pitfalls and How to Avoid Them Steps to Developing a Logic Model What is a Logic Model? Logic modeling is a thought process program evaluators have found to be useful for at least forty years and has become increasingly popular with program managers during the

  2. Non-linear system identification in flow-induced vibration

    SciTech Connect (OSTI)

    Spanos, P.D.; Zeldin, B.A.; Lu, R.

    1996-12-31

    The paper introduces a method of identification of non-linear systems encountered in marine engineering applications. The non-linearity is accounted for by a combination of linear subsystems and known zero-memory non-linear transformations; an equivalent linear multi-input-single-output (MISO) system is developed for the identification problem. The unknown transfer functions of the MISO system are identified by assembling a system of linear equations in the frequency domain. This system is solved by performing the Cholesky decomposition of a related matrix. It is shown that the proposed identification method can be interpreted as a {open_quotes}Gram-Schmidt{close_quotes} type of orthogonal decomposition of the input-output quantities of the equivalent MISO system. A numerical example involving the identification of unknown parameters of flow (ocean wave) induced forces on offshore structures elucidates the applicability of the proposed method.

  3. Electronic Non-Contacting Linear Position Measuring System

    DOE Patents [OSTI]

    Post, Richard F.

    2005-06-14

    A non-contacting linear position location system employs a special transmission line to encode and transmit magnetic signals to a receiver on the object whose position is to be measured. The invention is useful as a non-contact linear locator of moving objects, e.g., to determine the location of a magnetic-levitation train for the operation of the linear-synchronous motor drive system.

  4. Intergovernmental Programs | Department of Energy

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

    Intergovernmental Programs Intergovernmental Programs Intergovernmental Programs Intergovernmental Programs Intergovernmental Programs Intergovernmental Programs Intergovernmental Programs Intergovernmental Programs Intergovernmental Programs Intergovernmental Programs Intergovernmental Programs Intergovernmental Programs Intergovernmental Programs Intergovernmental Programs The Office of Environmental Management supports, by means of grants and cooperative agreements, a number of

  5. Knot Undulator to Generate Linearly Polarized Photons with Low...

    Office of Scientific and Technical Information (OSTI)

    Heat load on beamline optics is a serious problem to generate pure linearly polarized ... Language: English Subject: 43 PARTICLE ACCELERATORS; OPTICS; PERMANENT MAGNETS; PHOTONS; ...

  6. Vibronic coupling simulations for linear and nonlinear optical...

    Office of Scientific and Technical Information (OSTI)

    optical processes: Theory Citation Details In-Document Search Title: Vibronic coupling simulations for linear and nonlinear optical processes: Theory A comprehensive vibronic ...

  7. Entropy-based separation of linear chain molecules by exploiting...

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

    Entropy-based separation of linear chain molecules by exploiting differences in the saturation capacities in cage-type zeolites Previous Next List Rajamani Krishna, Jasper M. van...

  8. Top Quark Anomalous Couplings at the International Linear Collider...

    Office of Scientific and Technical Information (OSTI)

    to a precision of approximately 1% for each of two choices of beam polarization. ... INTERMEDIATE BOSONS; LINEAR COLLIDERS; POLARIZATION; PROBES; QUARKS; SILICON; SIMULATION; ...

  9. A posteriori error analysis of parameterized linear systems using...

    Office of Scientific and Technical Information (OSTI)

    Journal Article: A posteriori error analysis of parameterized linear systems using spectral methods. Citation Details In-Document Search Title: A posteriori error analysis of ...

  10. Simultaneous linear optics and coupling correction for storage...

    Office of Scientific and Technical Information (OSTI)

    Journal Article: Simultaneous linear optics and coupling correction for storage rings with turn-by-turn beam position monitor data Citation Details In-Document Search Title:...

  11. Unexpected Angular Dependence of X-Ray Magnetic Linear Dichroism

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

    Unexpected Angular Dependence of X-Ray Magnetic Linear Dichroism Print Using spectroscopic ... The effect is unique in that it allows us to distinguish which atomic species magnetism ...

  12. Linear electric field time-of-flight ion mass spectrometer

    DOE Patents [OSTI]

    Funsten, Herbert O.; Feldman, William C.

    2008-06-10

    A linear electric field ion mass spectrometer having an evacuated enclosure with means for generating a linear electric field located in the evacuated enclosure and means for injecting a sample material into the linear electric field. A source of pulsed ionizing radiation injects ionizing radiation into the linear electric field to ionize atoms or molecules of the sample material, and timing means determine the time elapsed between ionization of atoms or molecules and arrival of an ion out of the ionized atoms or molecules at a predetermined position.

  13. The Klynac: An Integrated Klystron and Linear Accelerator

    SciTech Connect (OSTI)

    Potter, J. M., Schwellenbach, D., Meidinger, A.

    2012-08-07

    The Klynac concept integrates an electron gun, a radio frequency (RF) power source, and a coupled-cavity linear accelerator into a single resonant system

  14. Knot Undulator to Generate Linearly Polarized Photons with Low...

    Office of Scientific and Technical Information (OSTI)

    pure linearly polarized photons in the third generation synchrotron radiation facilities. ... Sponsoring Org: USDOE Country of Publication: United States Language: English Subject: 43 ...

  15. DOE - Office of Legacy Management -- Stanford Linear Accelerator...

    Office of Legacy Management (LM)

    The Stanford Linear Accelerator Center was established in 1962 as a research facility for high energy particle physics. The Environmental Management mission at this site is to ...

  16. Optimizing minimum free-energy crossing points in solution: Linear...

    Office of Scientific and Technical Information (OSTI)

    Optimizing minimum free-energy crossing points in solution: Linear-response free energyspin-flip density functional theory approach Citation Details In-Document Search Title:...

  17. A Linear Theory of Microwave Instability in Electron Storage...

    Office of Scientific and Technical Information (OSTI)

    Title: A Linear Theory of Microwave Instability in Electron Storage Rings The well-known Haissinski distribution provides a stable equilibrium of longitudinal beam distribution in ...

  18. Self-Sustained Micromechanical Oscillator with Linear Feedback...

    Office of Scientific and Technical Information (OSTI)

    Publisher's Accepted Manuscript: Self-Sustained Micromechanical Oscillator with Linear Feedback This content will become publicly available on July 1, 2017 Prev Next Title: ...

  19. Linearly Polarized Thermal Emitter for More Efficient Thermophotovolta...

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

    Linearly Polarized Thermal Emitter for More Efficient Thermophotovoltaic Devices Ames ... than can be used to create more efficient thermophotovoltaic devices for power generation. ...

  20. Programming Models

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

    Version Control Tools Programming Libraries Performance and Debugging Tools Grid Software and Services NERSC Software Downloads Software Page Template Policies User Surveys NERSC Users Group Help Staff Blogs Request Repository Mailing List Need Help? Out-of-hours Status and Password help Call operations: 1-800-66-NERSC, option 1 or 510-486-6821 Account Support https://nim.nersc.gov accounts@nersc.gov 1-800-66-NERSC, option 2 or 510-486-8612 Consulting and questions http://help.nersc.gov

  1. Resource-Efficient Generataion of Linear Cluster States by Linear Optics with postselection

    DOE PAGES-Beta [OSTI]

    Uskov, Dmitry B; Alsing, Paul; Fanto, Michael; Kaplan, Lev; Kim, R; Szep, Atilla; Smith IV, Amos M

    2015-01-01

    We report on theoretical research in photonic cluster-state computing. Finding optimal schemes of generating non-classical photonic states is of critical importance for this field as physically implementable photon-photon entangling operations are currently limited to measurement-assisted stochastic transformations. A critical parameter for assessing the efficiency of such transformations is the success probability of a desired measurement outcome. At present there are several experimental groups that are capable of generating multi-photon cluster states carrying more than eight qubits. Separate photonic qubits or small clusters can be fused into a single cluster state by a probabilistic optical CZ gate conditioned on simultaneous detectionmore » of all photons with 1/9 success probability for each gate. This design mechanically follows the original theoretical scheme of cluster state generation proposed more than a decade ago by Raussendorf, Browne, and Briegel. The optimality of the destructive CZ gate in application to linear optical cluster state generation has not been analyzed previously. Our results reveal that this method is far from the optimal one. Employing numerical optimization we have identified that the maximal success probability of fusing n unentangled dual-rail optical qubits into a linear cluster state is equal to 1/2^n-1; an m-tuple of photonic Bell pair states, commonly generated via spontaneous parametric down-conversion, can be fused into a single cluster with the maximal success probability of 1/4^m-1.« less

  2. Resource-efficient generation of linear cluster states by linear optics with postselection

    SciTech Connect (OSTI)

    Uskov, D. B.; Alsing, P. M.; Fanto, M. L.; Kaplan, L.; Kim, R.; Szep, A.; Smith, A. M.

    2015-01-30

    Here we report on theoretical research in photonic cluster-state computing. Finding optimal schemes of generating non-classical photonic states is of critical importance for this field as physically implementable photon-photon entangling operations are currently limited to measurement-assisted stochastic transformations. A critical parameter for assessing the efficiency of such transformations is the success probability of a desired measurement outcome. At present there are several experimental groups that are capable of generating multi-photon cluster states carrying more than eight qubits. Separate photonic qubits or small clusters can be fused into a single cluster state by a probabilistic optical CZ gate conditioned on simultaneous detection of all photons with 1/9 success probability for each gate. This design mechanically follows the original theoretical scheme of cluster state generation proposed more than a decade ago by Raussendorf, Browne, and Briegel. The optimality of the destructive CZ gate in application to linear optical cluster state generation has not been analyzed previously. Our results reveal that this method is far from the optimal one. Employing numerical optimization we have identified that the maximal success probability of fusing n unentangled dual-rail optical qubits into a linear cluster state is equal to 1/2n-1; an m-tuple of photonic Bell pair states, commonly generated via spontaneous parametric down-conversion, can be fused into a single cluster with the maximal success probability of 1/4m-1.

  3. Resource-Efficient Generataion of Linear Cluster States by Linear Optics with postselection

    SciTech Connect (OSTI)

    Uskov, Dmitry B; Alsing, Paul; Fanto, Michael; Kaplan, Lev; Kim, R; Szep, Atilla; Smith IV, Amos M

    2015-01-01

    We report on theoretical research in photonic cluster-state computing. Finding optimal schemes of generating non-classical photonic states is of critical importance for this field as physically implementable photon-photon entangling operations are currently limited to measurement-assisted stochastic transformations. A critical parameter for assessing the efficiency of such transformations is the success probability of a desired measurement outcome. At present there are several experimental groups that are capable of generating multi-photon cluster states carrying more than eight qubits. Separate photonic qubits or small clusters can be fused into a single cluster state by a probabilistic optical CZ gate conditioned on simultaneous detection of all photons with 1/9 success probability for each gate. This design mechanically follows the original theoretical scheme of cluster state generation proposed more than a decade ago by Raussendorf, Browne, and Briegel. The optimality of the destructive CZ gate in application to linear optical cluster state generation has not been analyzed previously. Our results reveal that this method is far from the optimal one. Employing numerical optimization we have identified that the maximal success probability of fusing n unentangled dual-rail optical qubits into a linear cluster state is equal to 1/2^n-1; an m-tuple of photonic Bell pair states, commonly generated via spontaneous parametric down-conversion, can be fused into a single cluster with the maximal success probability of 1/4^m-1.

  4. Resource-efficient generation of linear cluster states by linear optics with postselection

    DOE PAGES-Beta [OSTI]

    Uskov, D. B.; Alsing, P. M.; Fanto, M. L.; Kaplan, L.; Kim, R.; Szep, A.; Smith, A. M.

    2015-01-30

    Here we report on theoretical research in photonic cluster-state computing. Finding optimal schemes of generating non-classical photonic states is of critical importance for this field as physically implementable photon-photon entangling operations are currently limited to measurement-assisted stochastic transformations. A critical parameter for assessing the efficiency of such transformations is the success probability of a desired measurement outcome. At present there are several experimental groups that are capable of generating multi-photon cluster states carrying more than eight qubits. Separate photonic qubits or small clusters can be fused into a single cluster state by a probabilistic optical CZ gate conditioned on simultaneousmore » detection of all photons with 1/9 success probability for each gate. This design mechanically follows the original theoretical scheme of cluster state generation proposed more than a decade ago by Raussendorf, Browne, and Briegel. The optimality of the destructive CZ gate in application to linear optical cluster state generation has not been analyzed previously. Our results reveal that this method is far from the optimal one. Employing numerical optimization we have identified that the maximal success probability of fusing n unentangled dual-rail optical qubits into a linear cluster state is equal to 1/2n-1; an m-tuple of photonic Bell pair states, commonly generated via spontaneous parametric down-conversion, can be fused into a single cluster with the maximal success probability of 1/4m-1.« less

  5. Solar receiver heliostat reflector having a linear drive and position information system

    DOE Patents [OSTI]

    Horton, Richard H.

    1980-01-01

    A heliostat for a solar receiver system comprises an improved drive and control system for the heliostat reflector assembly. The heliostat reflector assembly is controllably driven in a predetermined way by a light-weight drive system so as to be angularly adjustable in both elevation and azimuth to track the sun and efficiently continuously reflect the sun's rays to a focal zone, i.e., heat receiver, which forms part of a solar energy utilization system, such as a solar energy fueled electrical power generation system. The improved drive system includes linear stepping motors which comprise low weight, low cost, electronic pulse driven components. One embodiment comprises linear stepping motors controlled by a programmed, electronic microprocessor. Another embodiment comprises a tape driven system controlled by a position control magnetic tape.

  6. Beryllium Program - Hanford Site

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

    Program About Us About Hanford Cleanup Hanford History Hanford Site Wide Programs Beryllium Program Beryllium Program Points of Contact Beryllium Facilities & Areas Beryllium Program Information Hanford CBDPP Committee Beryllium FAQs Beryllium Related Links Hanford Beryllium Awareness Group (BAG) Program Performance Assessments Beryllium Program Feedback Beryllium Health Advocates Primary Contractors/Employers Medical Testing and Surveillance Facilities General Resources Contact Us Beryllium

  7. Geothermal Technologies Program Overview - Peer Review Program

    SciTech Connect (OSTI)

    Milliken, JoAnn

    2011-06-06

    This Geothermal Technologies Program presentation was delivered on June 6, 2011 at a Program Peer Review meeting. It contains annual budget, Recovery Act, funding opportunities, upcoming program activities, and more.

  8. Variable-energy drift-tube linear accelerator

    DOE Patents [OSTI]

    Swenson, Donald A.; Boyd, Jr., Thomas J.; Potter, James M.; Stovall, James E.

    1984-01-01

    A linear accelerator system includes a plurality of post-coupled drift-tubes wherein each post coupler is bistably positionable to either of two positions which result in different field distributions. With binary control over a plurality of post couplers, a significant accumlative effect in the resulting field distribution is achieved yielding a variable-energy drift-tube linear accelerator.

  9. Linear Concentrator System Basics for Concentrating Solar Power

    Office of Energy Efficiency and Renewable Energy (EERE)

    Linear concentrating solar power (CSP) collectors capture the sun's energy with large mirrors that reflect and focus the sunlight onto a linear receiver tube. The receiver contains a fluid that is heated by the sunlight and then used to heat a traditional power cycle that spins a turbine that drives a generator to produce electricity.

  10. Variable-energy drift-tube linear accelerator

    DOE Patents [OSTI]

    Swenson, D.A.; Boyd, T.J. Jr.; Potter, J.M.; Stovall, J.E.

    A linear accelerator system includes a plurality of post-coupled drift-tubes wherein each post coupler is bistably positionable to either of two positions which result in different field distributions. With binary control over a plurality of post couplers, a significant accumlative effect in the resulting field distribution is achieved yielding a variable-energy drift-tube linear accelerator.

  11. Differentially pumped dual linear quadrupole ion trap mass spectrometer

    DOE Patents [OSTI]

    Owen, Benjamin C.; Kenttamaa, Hilkka I.

    2015-10-20

    The present disclosure provides a new tandem mass spectrometer and methods of using the same for analyzing charged particles. The differentially pumped dual linear quadrupole ion trap mass spectrometer of the present disclose includes a combination of two linear quadrupole (LQIT) mass spectrometers with differentially pumped vacuum chambers.

  12. Drift tube suspension for high intensity linear accelerators

    DOE Patents [OSTI]

    Liska, Donald J.; Schamaun, Roger G.; Clark, Donald C.; Potter, R. Christopher; Frank, Joseph A.

    1982-01-01

    The disclosure relates to a drift tube suspension for high intensity linear accelerators. The system comprises a series of box-sections girders independently adjustably mounted on a linear accelerator. A plurality of drift tube holding stems are individually adjustably mounted on each girder.

  13. Drift tube suspension for high intensity linear accelerators

    DOE Patents [OSTI]

    Liska, D.J.; Schamaun, R.G.; Clark, D.C.; Potter, R.C.; Frank, J.A.

    1980-03-11

    The disclosure relates to a drift tube suspension for high intensity linear accelerators. The system comprises a series of box-sections girders independently adjustably mounted on a linear accelerator. A plurality of drift tube holding stems are individually adjustably mounted on each girder.

  14. Machinist Pipeline/Apprentice Program Program Description

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

    cost effective than previous time-based programs Moves apprentices to journeyworker status more quickly Program Coordinator: Heidi Hahn Email: hahn@lanl.gov Phone number:...

  15. Program Year 2008 State Energy Program Formula

    Energy.gov (indexed) [DOE]

    420 (covering the State Energy Program) and 10 CFR part ... are the official sources for program requirements. ... of energy efficiency and renewable energy products, ...

  16. Existing Facilities Rebate Program

    Energy.gov [DOE]

    The NYSERDA Existing Facilities program merges the former Peak Load Reduction and Enhanced Commercial and Industrial Performance programs. The new program offers a broad array of different...

  17. Nonlinear vs. linear biasing in Trp-cage folding simulations

    SciTech Connect (OSTI)

    Spiwok, Vojt?ch Oborsk, Pavel; Krlov, Blanka; Pazrikov, Jana

    2015-03-21

    Biased simulations have great potential for the study of slow processes, including protein folding. Atomic motions in molecules are nonlinear, which suggests that simulations with enhanced sampling of collective motions traced by nonlinear dimensionality reduction methods may perform better than linear ones. In this study, we compare an unbiased folding simulation of the Trp-cage miniprotein with metadynamics simulations using both linear (principle component analysis) and nonlinear (Isomap) low dimensional embeddings as collective variables. Folding of the mini-protein was successfully simulated in 200?ns simulation with linear biasing and non-linear motion biasing. The folded state was correctly predicted as the free energy minimum in both simulations. We found that the advantage of linear motion biasing is that it can sample a larger conformational space, whereas the advantage of nonlinear motion biasing lies in slightly better resolution of the resulting free energy surface. In terms of sampling efficiency, both methods are comparable.

  18. Better Buildings Neighborhood Program Business Models Guide: Program Administrator Description

    Energy.gov [DOE]

    Better Buildings Neighborhood Program Business Models Guide: Program Administrator Business Models, Program Administrator Description.

  19. Human Reliability Program Overview

    SciTech Connect (OSTI)

    Bodin, Michael

    2012-09-25

    This presentation covers the high points of the Human Reliability Program, including certification/decertification, critical positions, due process, organizational structure, program components, personnel security, an overview of the US DOE reliability program, retirees and academia, and security program integration.

  20. Vehicle Technologies Program Overview

    SciTech Connect (OSTI)

    none,

    2006-09-05

    Overview of the Vehicle Technologies Program including external assessment and market view; internal assessment, program history and progress; program justification and federal role; program vision, mission, approach, strategic goals, outputs, and outcomes; and performance goals.

  1. Mentoring Program | The Ames Laboratory

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

    Mentoring Program Mentoring Program Mentee Questionnaire Mentor Questionnaire Ideas for Mentoring Program Activities...

  2. STEM Education Program Inventory

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

    Issue for STEM Education Program Inventory Title of Program* Requestor Contact Information First Name* Last Name* Phone Number* E-mail* Fax Number Institution Name Program Description* Issue Information Leading Organization* Location of Program / Event Program Address Program Website To select multiple options, press CTRL and click. Type of Program (if Other, enter information in the box to the right.)* Workforce Development Student Programs Public Engagement in Life Long Learning

  3. Residential Buildings Integration Program

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

    ... Program Existing Homes HUD The residential program is grounded on technology and research. ... * Quantitative (reporting) * Qualitative (account management, peer exchange ...

  4. Utility Partnerships Program Overview

    SciTech Connect (OSTI)

    2014-10-03

    Document describes the Utility Partnerships Program within the U.S. Department of Energy's Federal Energy Management Program.

  5. Wisconsin Clean Transportation Program

    Energy.gov [DOE]

    2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation

  6. HQ Mediation Program Brochure

    Energy.gov [DOE]

    This document is the HQ Mediation Program's brochure.  It generally discusses the services the program offers.

  7. Undergraduate Student Program

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

    Careers » Career Options » Students » Undergraduate Program Undergraduate Student Program The Undergraduate Student (UGS) program is a year-round educational program that provides students with relevant research experience while they are pursuing an undergraduate degree. Contact Program Manager Scott Robbins Student Programs (505) 667-3639 Email Program Coordinator Emily Robinson Student Programs (505) 665-0964 Email Deadline for continuing and returning students: you are required to submit

  8. Non-linear stochastic growth rates and redshift space distortions

    DOE PAGES-Beta [OSTI]

    Jennings, Elise; Jennings, David

    2015-04-09

    The linear growth rate is commonly defined through a simple deterministic relation between the velocity divergence and the matter overdensity in the linear regime. We introduce a formalism that extends this to a non-linear, stochastic relation between θ = ∇ ∙ v(x,t)/aH and δ. This provides a new phenomenological approach that examines the conditional mean <θ|δ>, together with the fluctuations of θ around this mean. We also measure these stochastic components using N-body simulations and find they are non-negative and increase with decreasing scale from ~10 per cent at k < 0.2 h Mpc-1 to 25 per cent at kmore » ~ 0.45 h Mpc-1 at z = 0. Both the stochastic relation and non-linearity are more pronounced for haloes, M ≤ 5 × 1012 M⊙ h-1, compared to the dark matter at z = 0 and 1. Non-linear growth effects manifest themselves as a rotation of the mean <θ|δ> away from the linear theory prediction -fLTδ, where fLT is the linear growth rate. This rotation increases with wavenumber, k, and we show that it can be well-described by second-order Lagrangian perturbation theory (2LPT) fork < 0.1 h Mpc-1. Furthermore, the stochasticity in the θ – δ relation is not so simply described by 2LPT, and we discuss its impact on measurements of fLT from two-point statistics in redshift space. Furthermore, given that the relationship between δ and θ is stochastic and non-linear, this will have implications for the interpretation and precision of fLT extracted using models which assume a linear, deterministic expression.« less

  9. Structure/Function Studies of Proteins Using Linear Scaling Quantum Mechanical Methodologies

    SciTech Connect (OSTI)

    Merz, K. M.

    2004-07-19

    We developed a linear-scaling semiempirical quantum mechanical (QM) program (DivCon). Using DivCon we can now routinely carry out calculations at the fully QM level on systems containing up to about 15 thousand atoms. We also implemented a Poisson-Boltzmann (PM) method into DivCon in order to compute solvation free energies and electrostatic properties of macromolecules in solution. This new suite of programs has allowed us to bring the power of quantum mechanics to bear on important biological problems associated with protein folding, drug design and enzyme catalysis. Hence, we have garnered insights into biological systems that have been heretofore impossible to obtain using classical simulation techniques.

  10. Asynchronous parallel generating set search for linearly-constrained optimization.

    SciTech Connect (OSTI)

    Lewis, Robert Michael; Griffin, Joshua D.; Kolda, Tamara Gibson

    2006-08-01

    Generating set search (GSS) is a family of direct search methods that encompasses generalized pattern search and related methods. We describe an algorithm for asynchronous linearly-constrained GSS, which has some complexities that make it different from both the asynchronous bound-constrained case as well as the synchronous linearly-constrained case. The algorithm has been implemented in the APPSPACK software framework and we present results from an extensive numerical study using CUTEr test problems. We discuss the results, both positive and negative, and conclude that GSS is a reliable method for solving small-to-medium sized linearly-constrained optimization problems without derivatives.

  11. Explicit 2-D Hydrodynamic FEM Program

    Energy Science and Technology Software Center (OSTI)

    1996-08-07

    DYNA2D* is a vectorized, explicit, two-dimensional, axisymmetric and plane strain finite element program for analyzing the large deformation dynamic and hydrodynamic response of inelastic solids. DYNA2D* contains 13 material models and 9 equations of state (EOS) to cover a wide range of material behavior. The material models implemented in all machine versions are: elastic, orthotropic elastic, kinematic/isotropic elastic plasticity, thermoelastoplastic, soil and crushable foam, linear viscoelastic, rubber, high explosive burn, isotropic elastic-plastic, temperature-dependent elastic-plastic. Themore » isotropic and temperature-dependent elastic-plastic models determine only the deviatoric stresses. Pressure is determined by one of 9 equations of state including linear polynomial, JWL high explosive, Sack Tuesday high explosive, Gruneisen, ratio of polynomials, linear polynomial with energy deposition, ignition and growth of reaction in HE, tabulated compaction, and tabulated.« less

  12. Explicit 2-D Hydrodynamic FEM Program

    SciTech Connect (OSTI)

    1996-08-07

    DYNA2D* is a vectorized, explicit, two-dimensional, axisymmetric and plane strain finite element program for analyzing the large deformation dynamic and hydrodynamic response of inelastic solids. DYNA2D* contains 13 material models and 9 equations of state (EOS) to cover a wide range of material behavior. The material models implemented in all machine versions are: elastic, orthotropic elastic, kinematic/isotropic elastic plasticity, thermoelastoplastic, soil and crushable foam, linear viscoelastic, rubber, high explosive burn, isotropic elastic-plastic, temperature-dependent elastic-plastic. The isotropic and temperature-dependent elastic-plastic models determine only the deviatoric stresses. Pressure is determined by one of 9 equations of state including linear polynomial, JWL high explosive, Sack Tuesday high explosive, Gruneisen, ratio of polynomials, linear polynomial with energy deposition, ignition and growth of reaction in HE, tabulated compaction, and tabulated.

  13. A generating set direct search augmented Lagrangian algorithm for optimization with a combination of general and linear constraints.

    SciTech Connect (OSTI)

    Lewis, Robert Michael (College of William and Mary, Williamsburg, VA); Torczon, Virginia Joanne (College of William and Mary, Williamsburg, VA); Kolda, Tamara Gibson

    2006-08-01

    We consider the solution of nonlinear programs in the case where derivatives of the objective function and nonlinear constraints are unavailable. To solve such problems, we propose an adaptation of a method due to Conn, Gould, Sartenaer, and Toint that proceeds by approximately minimizing a succession of linearly constrained augmented Lagrangians. Our modification is to use a derivative-free generating set direct search algorithm to solve the linearly constrained subproblems. The stopping criterion proposed by Conn, Gould, Sartenaer and Toint for the approximate solution of the subproblems requires explicit knowledge of derivatives. Such information is presumed absent in the generating set search method we employ. Instead, we show that stationarity results for linearly constrained generating set search methods provide a derivative-free stopping criterion, based on a step-length control parameter, that is sufficient to preserve the convergence properties of the original augmented Lagrangian algorithm.

  14. Effective Yukawa couplings and flavor-changing Higgs boson decays at linear colliders

    SciTech Connect (OSTI)

    Gabrielli, E.; Mele, B.

    2011-04-01

    We analyze the advantages of a linear-collider program for testing a recent theoretical proposal where the Higgs boson Yukawa couplings are radiatively generated, keeping unchanged the standard-model mechanism for electroweak-gauge-symmetry breaking. Fermion masses arise at a large energy scale through an unknown mechanism, and the standard model at the electroweak scale is regarded as an effective field theory. In this scenario, Higgs boson decays into photons and electroweak gauge-boson pairs are considerably enhanced for a light Higgs boson, which makes a signal observation at the LHC straightforward. On the other hand, the clean environment of a linear collider is required to directly probe the radiative fermionic sector of the Higgs boson couplings. Also, we show that the flavor-changing Higgs boson decays are dramatically enhanced with respect to the standard model. In particular, we find a measurable branching ratio in the range (10{sup -4}-10{sup -3}) for the decay H{yields}bs for a Higgs boson lighter than 140 GeV, depending on the high-energy scale where Yukawa couplings vanish. We present a detailed analysis of the Higgs boson production cross sections at linear colliders for interesting decay signatures, as well as branching-ratio correlations for different flavor-conserving/nonconserving fermionic decays.

  15. Linear beam-beam tune shift calculations for the Tevatron Collider

    SciTech Connect (OSTI)

    Johnson, D.

    1989-01-12

    A realistic estimate of the linear beam-beam tune shift is necessary for the selection of an optimum working point in the tune diagram. Estimates of the beam-beam tune shift using the ''Round Beam Approximation'' (RBA) have over estimated the tune shift for the Tevatron. For a hadron machine with unequal lattice functions and beam sizes, an explicit calculation using the beam size at the crossings is required. Calculations for various Tevatron lattices used in Collider operation are presented. Comparisons between the RBA and the explicit calculation, for elliptical beams, are presented. This paper discusses the calculation of the linear tune shift using the program SYNCH. Selection of a working point is discussed. The magnitude of the tune shift is influenced by the choice of crossing points in the lattice as determined by the pbar ''cogging effects''. Also discussed is current cogging procedures and presents results of calculations for tune shifts at various crossing points in the lattice. Finally, a comparison of early pbar tune measurements with the present linear tune shift calculations is presented. 17 refs., 13 figs., 3 tabs.

  16. Method and apparatus of highly linear optical modulation

    DOE Patents [OSTI]

    DeRose, Christopher; Watts, Michael R.

    2016-05-03

    In a new optical intensity modulator, a nonlinear change in refractive index is used to balance the nonlinearities in the optical transfer function in a way that leads to highly linear optical intensity modulation.

  17. Physics Case for the International Linear Collider (Technical...

    Office of Scientific and Technical Information (OSTI)

    We summarize the physics case for the International Linear Collider (ILC). We review the ... in accord with the expected schedule of operation of the accelerator and the results of ...

  18. Linear Scaling of the Exciton Binding Energy versus the Band...

    Office of Scientific and Technical Information (OSTI)

    Linear Scaling of the Exciton Binding Energy versus the Band Gap of Two-Dimensional Materials This content will become publicly available on August 6, 2016 Prev Next Title:...

  19. Spin relaxation and linear-in-electric-field frequency shift...

    Office of Scientific and Technical Information (OSTI)

    arbitrary, time-independent magnetic field Citation Details In-Document Search Title: Spin relaxation and linear-in-electric-field frequency shift in an arbitrary, time-independen...

  20. Fourth order resonance of a high intensity linear accelerator...

    Office of Scientific and Technical Information (OSTI)

    For a high intensity beam, the 4nu1 resonance of a linear accelerator is manifested through the octupolar term of space charge potential when the depressed phase advance sigma ...

  1. Linear and cubic response to the initial eccentricity in heavy...

    Office of Scientific and Technical Information (OSTI)

    Linear and cubic response to the initial eccentricity in heavy-ion collisions Citation Details In-Document Search This content will become publicly available on January 21, 2017 ...

  2. Linear Scaling Electronic Structure Methods with Periodic Boundary Conditions

    SciTech Connect (OSTI)

    Gustavo E. Scuseria

    2008-02-08

    The methodological development and computational implementation of linear scaling quantum chemistry methods for the accurate calculation of electronic structure and properties of periodic systems (solids, surfaces, and polymers) and their application to chemical problems of DOE relevance.

  3. Free piston variable-stroke linear-alternator generator

    DOE Patents [OSTI]

    Haaland, Carsten M.

    1998-01-01

    A free-piston variable stroke linear-alternator AC power generator for a combustion engine. An alternator mechanism and oscillator system generates AC current. The oscillation system includes two oscillation devices each having a combustion cylinder and a flying turnbuckle. The flying turnbuckle moves in accordance with the oscillation device. The alternator system is a linear alternator coupled between the two oscillation devices by a slotted connecting rod.

  4. Free piston variable-stroke linear-alternator generator

    DOE Patents [OSTI]

    Haaland, C.M.

    1998-12-15

    A free-piston variable stroke linear-alternator AC power generator for a combustion engine is described. An alternator mechanism and oscillator system generates AC current. The oscillation system includes two oscillation devices each having a combustion cylinder and a flying turnbuckle. The flying turnbuckle moves in accordance with the oscillation device. The alternator system is a linear alternator coupled between the two oscillation devices by a slotted connecting rod. 8 figs.

  5. Producing Linear Alpha Olefins From Biomass - Energy Innovation Portal

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

    Producing Linear Alpha Olefins From Biomass Great Lakes Bioenergy Research Center Contact GLBRC About This Technology Technology Marketing Summary Linear alpha olefins (LAOs) are valuable commodity chemicals traditionally derived from petroleum. They are versatile building blocks for making a range of chemical products like polyethylene, synthetic oils, plasticizers, detergents and oilfield fluids. Relying on fossil fuel to manufacture LAOs is problematic. Not only are the standard methods

  6. International Linear Collider Technical Design Report - Volume 2: Physics

    Office of Scientific and Technical Information (OSTI)

    (Technical Report) | SciTech Connect International Linear Collider Technical Design Report - Volume 2: Physics Citation Details In-Document Search Title: International Linear Collider Technical Design Report - Volume 2: Physics Authors: Baer, Howard ; Barklow, Tim ; Fujii, Keisuke ; Gao, Yuanning ; Hoang, Andre ; Kanemura, Shinya ; List, Jenny ; Logan, Heather E. ; Nomerotski, Andrei ; Perelstein, Maxim ; Peskin, Michael E. ; Poschl, Roman ; Reuter, Jurgen ; Riemann, Sabine ; Savoy-Navarro,

  7. JLab Supports International Linear Collider Cavity Development Work |

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

    Jefferson Lab Supports International Linear Collider Cavity Development Work JLab Supports International Linear Collider Cavity Development Work NEWPORT NEWS, Va. Feb. 12, 2008 - It's not often that major-league baseball and nuclear physics get to share the limelight, but that's what's happening at the Department of Energy's Jefferson Lab. The baseball connection involves a nine-cell niobium cavity developed by KEK accelerator scientists in Japan as one of several designs being tested for

  8. Direct Probes of Linearly Polarized Gluons inside Unpolarized Hadrons

    SciTech Connect (OSTI)

    Boer, Daniel; Brodsky, Stanley J.; Mulders, Piet J.; Pisano, Cristian; /Cagliari U. /INFN, Cagliari

    2011-02-07

    We show that the unmeasured distribution of linearly polarized gluons inside unpolarized hadrons can be directly probed in jet or heavy quark pair production both in electron-hadron and hadron-hadron collisions. We present expressions for the simplest cos 2{phi} asymmetries and estimate their maximal value in the particular case of electron-hadron collisions. Measurements of the linearly polarized gluon distribution in the proton should be feasible in future EIC or LHeC experiments.

  9. Accessing the Distribution of Linearly Polarized Gluons in Unpolarized Hadrons

    SciTech Connect (OSTI)

    Boer, Daniel; Brodsky, Stanley J.; Mulders, Piet J.; Pisano, Cristian; /Cagliari U. /INFN, Cagliari

    2011-08-19

    Gluons inside unpolarized hadrons can be linearly polarized provided they have a nonzero transverse momentum. The simplest and theoretically safest way to probe this distribution of linearly polarized gluons is through cos2{phi} asymmetries in heavy quark pair or dijet production in electron-hadron collisions. Future Electron-Ion Collider (EIC) or Large Hadron electron Collider (LHeC) experiments are ideally suited for this purpose. Here we estimate the maximum asymmetries for EIC kinematics.

  10. Proceedings of the Oak Ridge Electron Linear Accelerator (ORELA) Workshop

    SciTech Connect (OSTI)

    Dunn, M.E.

    2006-02-27

    The Oak Ridge National Laboratory (ORNL) organized a workshop at ORNL July 14-15, 2005, to highlight the unique measurement capabilities of the Oak Ridge Electron Linear Accelerator (ORELA) facility and to emphasize the important role of ORELA for performing differential cross-section measurements in the low-energy resonance region that is important for nuclear applications such as nuclear criticality safety, nuclear reactor and fuel cycle analysis, stockpile stewardship, weapons research, medical diagnosis, and nuclear astrophysics. The ORELA workshop (hereafter referred to as the Workshop) provided the opportunity to exchange ideas and information pertaining to nuclear cross-section measurements and their importance for nuclear applications from a variety of perspectives throughout the U.S. Department of Energy (DOE). Approximately 50 people, representing DOE, universities, and seven U.S. national laboratories, attended the Workshop. The objective of the Workshop was to emphasize the technical community endorsement for ORELA in meeting nuclear data challenges in the years to come. The Workshop further emphasized the need for a better understanding of the gaps in basic differential nuclear measurements and identified the efforts needed to return ORELA to a reliable functional measurement facility. To accomplish the Workshop objective, nuclear data experts from national laboratories and universities were invited to provide talks emphasizing the unique and vital role of the ORELA facility for addressing nuclear data needs. ORELA is operated on a full cost-recovery basis with no single sponsor providing complete base funding for the facility. Consequently, different programmatic sponsors benefit by receiving accurate cross-section data measurements at a reduced cost to their respective programs; however, leveraging support for a complex facility such as ORELA has a distinct disadvantage in that the programmatic funds are only used to support program

  11. Low-level RF signal processing for the Next Linear Collider Test Accelerator

    SciTech Connect (OSTI)

    Holmes, S.; Ziomek, C.; Adolphsen, C.

    1997-05-12

    In the X-band accelerator system for the Next Linear Collider Test Accelerator (NLCTA), the Low Level RF (LLRF) drive system must be very phase stable, but concurrently, be very phase agile. Phase agility is needed to make the Stanford Linear Doubler (SLED) power multiplier systems Energy work and to shape the RF waveforms to compensate beam loading in the accelerator sections. Similarly, precision fast phase and amplitude monitors are required to view, track, and feed back on RF signals at various locations throughout the system. The LLRF is composed of several subsystems: the RF Reference System generates and distributes a reference 11.424 GHz signal to all of the RF stations, the Signal Processing Chassis creates the RF waveforms with the appropriate phase modulation, and the Phase Detector Assembly measures the amplitude and phase of monitor3ed RF signals. The LLRF is run via VXI instrumentation. These instruments are controlled using HP VEE graphical programming software. Programs have been developed to shape the RF waveform, calibrate the phase modulators and demodulators, and display the measured waveforms. This paper describes these and other components of the LLRF system.

  12. High School Internship Program

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

    High School Internship Program High School Internship Program Point your career towards Los Alamos Lab: work with the best minds on the planet in an inclusive environment that is rich in intellectual vitality and opportunities for growth. Contact Program Manager Scott Robbins Student Programs (505) 667-3639 Email Program Coordinator Emily Robinson Student Programs (505) 665-0964 Email Opportunities for Northern New Mexico high school seniors The High School Internship Program provides qualified

  13. Spark Energy, LP (Massachusetts) | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Number: 1-877-547-7275 Website: www.sparkenergy.comenhome Twitter: @SparkEnergy Facebook: https:www.facebook.comSparkEnergy Outage Hotline: 1-800-592-2000 References: EIA...

  14. Wood Fuel LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    77034 Region: Texas Area Sector: Biomass Product: Wood by-products consulting and marketing Website: www.woodfuel.com Coordinates: 29.6221328, -95.1872605 Show Map Loading...

  15. Mega Energy, LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    56247 Utility Location Yes Ownership R NERC ERCOT Yes ISO Ercot Yes Activity Retail Marketing Yes This article is a stub. You can help OpenEI by expanding it. Utility Rate...

  16. The growing world LP-gas supply

    SciTech Connect (OSTI)

    Hoare, M.C.

    1988-11-01

    The possible range of future (LPG) export availabilities is huge, but actual production levels depend on factors, many of which are beyond our direct control - world demand for crude oil and gas, developments in technology, and the price of both energy in general and LPG specifically. Although these factors limit some of the potential developments, a substantial increase in LPG supply is certain, and this is likely to depress its price relative to other products. Over the last few years, a dramatic expansion has taken place in the industry. From 1980 to 1987, non-Communist world production of LPG increased by close to 35%, to a total of 115 million tonnes. If this is set against the general energy scene, LPG represented 3.7% of crude oil production by weight in 1980, rising to 5.4% in 1987. This growth reflects rise in consciousness around the world of the value of the product. LPG is no longer regarded as a byproduct, which is flared or disposed of at low value, but increasingly as a co-product, and much of the growth in production has been due to the installation of tailored recovery systems. LPG markets historically developed around sources of supply, constrained by the costs of transportation. The major exceptions, of course, were the Middle East, the large exporter, and Japan, the large importer.

  17. AES Eastern Energy LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    NPCC Yes ISO NY Yes Operates Generating Plant Yes Activity Generation Yes Activity Wholesale Marketing Yes This article is a stub. You can help OpenEI by expanding it. Utility...

  18. Calpine Energy Services LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Id 2857 Utility Location Yes Ownership W Activity Buying Transmission Yes Activity Wholesale Marketing Yes This article is a stub. You can help OpenEI by expanding it. Utility...

  19. Simple Power, LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Texas Phone Number: 1.800.692.4776 Website: www.cirroenergy.com Twitter: @cirroenergytx Facebook: https:www.facebook.comCirroEnergy Outage Hotline: 1.800.692.4776 References:...

  20. CPL Retail Energy, LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    EIA-861 Final Data File for 2010 - File1a1 EIA Form 861 Data Utility Id 13151 Utility Location Yes Ownership R NERC ERCOT Yes Activity Retail Marketing Yes This article is a...

  1. EA-368_BEM_LP_CN.pdf

    Energy Savers

  2. Sharyland Utilities LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Id 17008 Utility Location Yes Ownership I NERC ERCOT Yes NERC SPP Yes ISO Ercot Yes RTO SPP Yes Activity Transmission Yes Activity Distribution Yes This article is a stub. You...

  3. Plymouth Cogeneration LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    861 Data Utility Id 15112 This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png Average Rates No Rates Available References ...

  4. Pasadena Cogneration LP | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    861 Data Utility Id 11059 This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png Average Rates No Rates Available References ...

  5. Workplace Charging Challenge Partner: Bloomberg LP | Department...

    Energy.gov (indexed) [DOE]

    Bloomberg currently has two charging stations available and has upgraded the facility's electrical service to accommodate additional charging stations when employee demand ...

  6. State Energy Program Competitive Financial Assistance Program

    Energy.gov [DOE]

    State Energy Program (SEP) dedicates a portion of its funding each year to provide competitively awarded financial assistance to U.S. states and territories to advance policies, programs, and market strategies.

  7. Algorithmic advances in stochastic programming

    SciTech Connect (OSTI)

    Morton, D.P.

    1993-07-01

    Practical planning problems with deterministic forecasts of inherently uncertain parameters often yield unsatisfactory solutions. Stochastic programming formulations allow uncertain parameters to be modeled as random variables with known distributions, but the size of the resulting mathematical programs can be formidable. Decomposition-based algorithms take advantage of special structure and provide an attractive approach to such problems. We consider two classes of decomposition-based stochastic programming algorithms. The first type of algorithm addresses problems with a ``manageable`` number of scenarios. The second class incorporates Monte Carlo sampling within a decomposition algorithm. We develop and empirically study an enhanced Benders decomposition algorithm for solving multistage stochastic linear programs within a prespecified tolerance. The enhancements include warm start basis selection, preliminary cut generation, the multicut procedure, and decision tree traversing strategies. Computational results are presented for a collection of ``real-world`` multistage stochastic hydroelectric scheduling problems. Recently, there has been an increased focus on decomposition-based algorithms that use sampling within the optimization framework. These approaches hold much promise for solving stochastic programs with many scenarios. A critical component of such algorithms is a stopping criterion to ensure the quality of the solution. With this as motivation, we develop a stopping rule theory for algorithms in which bounds on the optimal objective function value are estimated by sampling. Rules are provided for selecting sample sizes and terminating the algorithm under which asymptotic validity of confidence interval statements for the quality of the proposed solution can be verified. Issues associated with the application of this theory to two sampling-based algorithms are considered, and preliminary empirical coverage results are presented.

  8. Higher-degree linear approximations of nonlinear systems

    SciTech Connect (OSTI)

    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.

  9. Vehicle Technologies Program Implementation

    SciTech Connect (OSTI)

    none,

    2009-06-19

    The Vehicle Technologies Program takes a systematic approach to Program implementation. Elements of this approach include the evaluation of new technologies, competitive selection of projects and partners, review of Program and project improvement, project tracking, and portfolio management and adjustment.

  10. DOE's Tribal Energy Program

    Energy Savers

    Wind 80 Solar 247 Water 50 Buildings 222 FEMP 32 WIP 270 Hydrogen & Fuel Cells 174 Biomass 220 Industrial 96 Infrastructure ... DOE's Tribal Energy Program Program Funding History Program ...

  11. DOE Laboratory Accreditation Program

    Energy.gov [DOE]

    Administered by the Office of Worker Safety and Health Policy, the DOE Laboratory Accreditation Program (DOELAP) is responsible for implementing performance standards for DOE contractor external dosimetry and radiobioassay programs through periodic performance testing and on-site program assessments.

  12. Y-12 Apprentice Program

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

    Apprentice Program Over the years Y-12 has produced numerous training programs. Many of them have been developed at Y-12 to meet special needs. The training programs have ranged...

  13. Parallel preconditioning for the solution of nonsymmetric banded linear systems

    SciTech Connect (OSTI)

    Amodio, P.; Mazzia, F.

    1994-12-31

    Many computational techniques require the solution of banded linear systems. Common examples derive from the solution of partial differential equations and of boundary value problems. In particular the authors are interested in the parallel solution of block Hessemberg linear systems Gx = f, arising from the solution of ordinary differential equations by means of boundary value methods (BVMs), even if the considered preconditioning may be applied to any block banded linear system. BVMs have been extensively investigated in the last few years and their stability properties give promising results. A new class of BVMs called Reverse Adams, which are BV-A-stable for orders up to 6, and BV-A{sub 0}-stable for orders up to 9, have been studied.

  14. New non-linear photovoltaic effect in uniform bipolar semiconductor

    SciTech Connect (OSTI)

    Volovichev, I.

    2014-11-21

    A linear theory of the new non-linear photovoltaic effect in the closed circuit consisting of a non-uniformly illuminated uniform bipolar semiconductor with neutral impurities is developed. The non-uniform photo-excitation of impurities results in the position-dependant current carrier mobility that breaks the semiconductor homogeneity and induces the photo-electromotive force (emf). As both the electron (or hole) mobility gradient and the current carrier generation rate depend on the light intensity, the photo-emf and the short-circuit current prove to be non-linear functions of the incident light intensity at an arbitrarily low illumination. The influence of the sample size on the photovoltaic effect magnitude is studied. Physical relations and distinctions between the considered effect and the Dember and bulk photovoltaic effects are also discussed.

  15. Confirming the Lanchestrian linear-logarithmic model of attrition

    SciTech Connect (OSTI)

    Hartley, D.S. III.

    1990-12-01

    This paper is the fourth in a series of reports on the breakthrough research in historical validation of attrition in conflict. Significant defense policy decisions, including weapons acquisition and arms reduction, are based in part on models of conflict. Most of these models are driven by their attrition algorithms, usually forms of the Lanchester square and linear laws. None of these algorithms have been validated. The results of this paper confirm the results of earlier papers, using a large database of historical results. The homogeneous linear-logarithmic Lanchestrian attrition model is validated to the extent possible with current initial and final force size data and is consistent with the Iwo Jima data. A particular differential linear-logarithmic model is described that fits the data very well. A version of Helmbold's victory predicting parameter is also confirmed, with an associated probability function. 37 refs., 73 figs., 68 tabs.

  16. APPLICATION OF NEURAL NETWORK ALGORITHMS FOR BPM LINEARIZATION

    SciTech Connect (OSTI)

    Musson, John C.; Seaton, Chad; Spata, Mike F.; Yan, Jianxun

    2012-11-01

    Stripline BPM sensors contain inherent non-linearities, as a result of field distortions from the pickup elements. Many methods have been devised to facilitate corrections, often employing polynomial fitting. The cost of computation makes real-time correction difficult, particulalry when integer math is utilized. The application of neural-network technology, particularly the multi-layer perceptron algorithm, is proposed as an efficient alternative for electrode linearization. A process of supervised learning is initially used to determine the weighting coefficients, which are subsequently applied to the incoming electrode data. A non-linear layer, known as an ?activation layer,? is responsible for the removal of saturation effects. Implementation of a perceptron in an FPGA-based software-defined radio (SDR) is presented, along with performance comparisons. In addition, efficient calculation of the sigmoidal activation function via the CORDIC algorithm is presented.

  17. Programming on Franklin

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

    Programming Programming on Franklin Compiling Codes on Franklin Cray provides a convenient set of wrapper commands which should be used in almost all cases for compiling and...

  18. Energy Smart Grocer Program

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

    New Commercial Program Development Commercial Current Promotions Industrial Federal Agriculture EnergySmart Grocer Program Close-out BPA and CLEAResult have concluded negotiations...

  19. Graduate Research Assistant Program

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

    ... Living in Los Alamos Ombuds Program Scholarships Student Association Autobiographies Student Programs Advisory Committee (internal) 2015 Student Liaison Contact List (pdf)

  20. TMAC User Program

    Energy.gov [DOE]

    2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C.

  1. " Generation by Program Sponsorship...

    U.S. Energy Information Administration (EIA) (indexed site)

    A49. Total Inputs of Energy for Heat, Power, and Electricity" " Generation by Program Sponsorship, Industry Group, Selected" " Industries, and Type of Energy-Management Program, ...

  2. " Generation, by Program Sponsorship...

    U.S. Energy Information Administration (EIA) (indexed site)

    by Total Inputs of Energy for Heat, Power, and Electricity" " Generation, by Program Sponsorship, Industry Group, Selected" " Industries, and Type of Energy-Management Program, ...

  3. TECHNOLOGY PROGRAM PLAN

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

    ... against business environment risk, reducing program dependency on a single developer. ... U.S. DEPARTMENT OF ENERGY TECHNOLOGY PROGRAM PLAN CHAPTER 2: SOLID OXIDE FUEL CELLS ...

  4. Defense Waste Management Programs

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

    Nuclear Energy Defense Waste Management Programs Advanced Nuclear Energy Nuclear Energy ... Twitter Google + Vimeo Newsletter Signup SlideShare Defense Waste Management Programs ...

  5. NREL: Education Center - Programs

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

    Education Center Printable Version Programs NREL's Education Center in Golden, Colorado, offers a variety of program topics and experiences for students and adult groups addressing...

  6. Hydrogen Program Overview

    Fuel Cell Technologies Publication and Product Library (EERE)

    This 2-page fact sheet provides a brief introduction to the DOE Hydrogen Program. It describes the program mission and answers the question: Why Hydrogen?

  7. Employee Concerns Program

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

    Contract ECP Employee Concerns Program Employees Concern Program provides a place for ... with a mechanism to report employee concerns without fear of retaliation and ...

  8. Hydropower Program Technology Overview

    SciTech Connect (OSTI)

    Not Available

    2001-10-01

    New fact sheets for the DOE Office of Power Technologies (OPT) that provide technology overviews, description of DOE programs, and market potential for each OPT program area.

  9. Civilian Nuclear Program

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

    Civilian Nuclear Program Civilian Nuclear Program Los Alamos is committed to using its advanced nuclear expertise and unique facilities to meet the civilian nuclear national ...

  10. USABC Program Highlights

    Energy.gov [DOE]

    2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C.

  11. DOE's Tribal Energy Program

    Energy.gov (indexed) [DOE]

    and Programs, the Tribal Energy Program provides financial and technical assistance to Tribes to develop their renewable energy resources and reduce their energy consumption. ...

  12. Weapons Program Associate Directors

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

    integration we have achieved between the various components of the program," said Bret Knapp, Principal Associate Director for Weapons Programs. "They have both done an...

  13. Fire Protection Program

    Energy.gov [DOE]

    Department of Energy (DOE) Fire Protection Program provides published fire safety directives (orders, standards, and guidance documents), a range of oversight activities, an annual fire protection program summary.

  14. Magnetic levitation configuration incorporating levitation, guidance and linear synchronous motor

    DOE Patents [OSTI]

    Coffey, Howard T.

    1993-01-01

    A propulsion and suspension system for an inductive repulsion type magnetically levitated vehicle which is propelled and suspended by a system which includes propulsion windings which form a linear synchronous motor and conductive guideways, adjacent to the propulsion windings, where both combine to partially encircling the vehicle-borne superconducting magnets. A three phase power source is used with the linear synchronous motor to produce a traveling magnetic wave which in conjunction with the magnets propel the vehicle. The conductive guideway combines with the superconducting magnets to provide for vehicle leviation.

  15. Magnetic levitation configuration incorporating levitation, guidance and linear synchronous motor

    DOE Patents [OSTI]

    Coffey, H.T.

    1993-10-19

    A propulsion and suspension system for an inductive repulsion type magnetically levitated vehicle which is propelled and suspended by a system which includes propulsion windings which form a linear synchronous motor and conductive guideways, adjacent to the propulsion windings, where both combine to partially encircling the vehicle-borne superconducting magnets. A three phase power source is used with the linear synchronous motor to produce a traveling magnetic wave which in conjunction with the magnets propel the vehicle. The conductive guideway combines with the superconducting magnets to provide for vehicle levitation. 3 figures.

  16. Search for Linear Polarization of the Cosmic Background Radiation

    DOE R&D Accomplishments [OSTI]

    Lubin, P. M.; Smoot, G. F.

    1978-10-01

    We present preliminary measurements of the linear polarization of the cosmic microwave background (3 deg K blackbody) radiation. These ground-based measurements are made at 9 mm wavelength. We find no evidence for linear polarization, and set an upper limit for a polarized component of 0.8 m deg K with a 95% confidence level. This implies that the present rate of expansion of the Universe is isotropic to one part in 10{sup 6}, assuming no re-ionization of the primordial plasma after recombination

  17. LDRD final report on a unified linear reference system

    SciTech Connect (OSTI)

    Espinoza, J. Jr.; Mackoy, R.D.; Fletcher, D.R.

    1997-06-01

    The purpose of the project was to describe existing deficiencies in Geographic Information Systems for transportation (GIS-T) applications and prescribe solutions that would benefit the transportation community in general. After an in-depth literature search and much consultation with noted transportation experts, the need for a common linear reference system that integrated and supported the planning and operational needs of the transportation community became very apparent. The focus of the project was set on a unified linear reference system and how to go about its requirements definition, design, implementation, and promulgation to the transportation community.

  18. Klystron switching power supplies for the Internation Linear Collider

    SciTech Connect (OSTI)

    Fraioli, Andrea; /Cassino U. /INFN, Pisa

    2009-12-01

    The International Linear Collider is a majestic High Energy Physics particle accelerator that will give physicists a new cosmic doorway to explore energy regimes beyond the reach of today's accelerators. ILC will complement the Large Hadron Collider (LHC), a proton-proton collider at the European Center for Nuclear Research (CERN) in Geneva, Switzerland, by producing electron-positron collisions at center of mass energy of about 500 GeV. In particular, the subject of this dissertation is the R&D for a solid state Marx Modulator and relative switching power supply for the International Linear Collider Main LINAC Radio Frequency stations.

  19. LDRD final report : autotuning for scalable linear algebra.

    SciTech Connect (OSTI)

    Heroux, Michael Allen; Marker, Bryan

    2011-09-01

    This report summarizes the progress made as part of a one year lab-directed research and development (LDRD) project to fund the research efforts of Bryan Marker at the University of Texas at Austin. The goal of the project was to develop new techniques for automatically tuning the performance of dense linear algebra kernels. These kernels often represent the majority of computational time in an application. The primary outcome from this work is a demonstration of the value of model driven engineering as an approach to accurately predict and study performance trade-offs for dense linear algebra computations.

  20. Linear-array ultrasonic waveguide transducer for under sodium viewing.

    SciTech Connect (OSTI)

    Sheen, S. H.; Chien, H. T.; Wang, K.; Lawrence, W. P.; Engel, D.; Nuclear Engineering Division

    2010-09-01

    In this report, we first present the basic design of a low-noise waveguide and its performance followed by a review of the array transducer technology. The report then presents the concept and basic designs of arrayed waveguide transducers that can apply to under-sodium viewing for in-service inspection of fast reactors. Depending on applications, the basic waveguide arrays consist of designs for sideway and downward viewing. For each viewing application, two array geometries, linear and circular, are included in design analysis. Methods to scan a 2-D target using a linear array waveguide transducer are discussed. Future plan to develop a laboratory array waveguide prototype is also presented.

  1. Beamstrahlung spectra in next generation linear colliders. Revision

    SciTech Connect (OSTI)

    Barklow, T.; Chen, P.; Kozanecki, W.

    1992-04-01

    For the next generation of linear colliders, the energy loss due to beamstrahlung during the collision of the e{sup +}e{sup {minus}} beams is expected to substantially influence the effective center-of-mass energy distribution of the colliding particles. In this paper, we first derive analytical formulae for the electron and photon energy spectra under multiple beamstrahlung processes, and for the e{sup +}e{sup {minus}} and {gamma}{gamma} differential luminosities. We then apply our formulation to various classes of 500 GeV e{sup +}e{sup {minus}} linear collider designs currently under study.

  2. Direct Probes of Linearly Polarized Gluons inside Unpolarized Hadrons

    SciTech Connect (OSTI)

    Boer, Danieel; Brodsky, Stanley J.; Mulders, Piet J.; Pisano, Cristian

    2011-04-01

    We show that linearly polarized gluons inside unpolarized hadrons can be directly probed in jet or heavy quark pair production in electron-hadron collisions. We discuss the simplest cos2{phi} asymmetries and estimate their maximal value, concluding that measurements of the unknown linearly polarized gluon distribution in the proton should be feasible in future Electron-Ion Collider or Large Hadron electron Collider experiments. Analogous asymmetries in hadron-hadron collisions suffer from factorization breaking contributions and would allow us to quantify the importance of initial- and final-state interactions.

  3. Assistance Program, State Energy Program, Energy Efficiency and...

    Energy Savers

    Assistance Program, State Energy Program, Energy Efficiency and Conservation Block Grants Assistance Program, State Energy Program, Energy Efficiency and Conservation Block Grants ...

  4. DOE Publishes CALiPER Report on Linear (T8) LED Lamps in a 2x4 K12-Lensed Troffer

    Energy.gov [DOE]

    The U.S. Department of Energy's CALiPER program has released Report 21.1, which is part of a series of investigations on linear LED lamps. Report 21.1 focuses on the performance of 31 types of...

  5. Interactive Beam-Dynamics Program

    Energy Science and Technology Software Center (OSTI)

    2001-01-08

    TRACE3D is an interactive program that calculates the envelopes of a bunched beam, including linear space-charge forces, through a user-defined system. The transport system may consist of the following elements: drift, thin lens, quadrupole, permanent magnet quadrupole, solenoid, doublet, triplet, bending magnet, edge angle (for bend), RF gap, radio-frequency-quadrupole cell, RF cavity, coupled-cavity tank, user-desired element, coordinate rotation, and identical element. The beam is represented by a 6X6 matrix defining a hyper-ellipsoid in six-dimensional phasemore » space. The projection of this hyperellipsoid on any two-dimensional plane is an ellipse that defines the boundary of the beam in that plane.« less

  6. Program Assignments | Department of Energy

    Energy Savers

    Balanced Scorecard Program Officer Contractual Services Budget Officer Headquarters Purchase Card Program Headquarters Contract Closeout Headquarters Data Mining Programs Strategic ...

  7. Voluntary Protection Program | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Voluntary Protection Program

  8. Internship Programs Calendar | The Ames Laboratory

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

    Internship Programs Calendar

  9. Solving linear inequalities in a least squares sense

    SciTech Connect (OSTI)

    Bramley, R.; Winnicka, B.

    1994-12-31

    Let A {element_of} {Re}{sup mxn} be an arbitrary real matrix, and let b {element_of} {Re}{sup m} a given vector. A familiar problem in computational linear algebra is to solve the system Ax = b in a least squares sense; that is, to find an x* minimizing {parallel}Ax {minus} b{parallel}, where {parallel} {center_dot} {parallel} refers to the vector two-norm. Such an x* solves the normal equations A{sup T}(Ax {minus} b) = 0, and the optimal residual r* = b {minus} Ax* is unique (although x* need not be). The least squares problem is usually interpreted as corresponding to multiple observations, represented by the rows of A and b, on a vector of data x. The observations may be inconsistent, and in this case a solution is sought that minimizes the norm of the residuals. A less familiar problem to numerical linear algebraists is the solution of systems of linear inequalities Ax {le} b in a least squares sense, but the motivation is similar: if a set of observations places upper or lower bounds on linear combinations of variables, the authors want to find x* minimizing {parallel} (Ax {minus} b){sub +} {parallel}, where the i{sup th} component of the vector v{sub +} is the maximum of zero and the i{sup th} component of v.

  10. SIMULTANEOUS LINEAR AND CIRCULAR OPTICAL POLARIMETRY OF ASTEROID (4) VESTA

    SciTech Connect (OSTI)

    Wiktorowicz, Sloane J.; Nofi, Larissa A.

    2015-02-10

    From a single 3.8 hr observation of the asteroid (4) Vesta at 13.7 phase angle with the POlarimeter at Lick for Inclination Studies of Hot jupiters 2 (POLISH2) at the Lick Observatory Shane 3 m telescope, we confirm rotational modulation of linear polarization in the B and V bands. We measure the peak-to-peak modulation in the degree of linear polarization to be ?P = (294 35) 10{sup ?6} (ppm) and time-averaged ?P/P = 0.0575 0.0069. After rotating the plane of linear polarization to the scattering plane, asteroidal rotational modulation is detected with 12? confidence and observed solely in Stokes Q/I. POLISH2 simultaneously measures Stokes I, Q, U (linear polarization), and V (circular polarization), but we detect no significant circular polarization with a 1? upper limit of 78 ppm in the B band. Circular polarization is expected to arise from multiple scattering of sunlight by rough surfaces, and it has previously been detected in nearly all other classes of solar system bodies except for asteroids. Subsequent observations may be compared with surface albedo maps from the Dawn Mission, which may allow the identification of compositional variation across the asteroidal surface. These results demonstrate the high accuracy achieved by POLISH2 at the Lick 3 m telescope, which is designed to directly detect scattered light from spatially unresolvable exoplanets.

  11. Tunneling control using classical non-linear oscillator

    SciTech Connect (OSTI)

    Kar, Susmita; Bhattacharyya, S. P.

    2014-04-24

    A quantum particle is placed in symmetric double well potential which is coupled to a classical non-linear oscillator via a coupling function. With different spatial symmetry of the coupling and under various controlling fashions, the tunneling of the quantum particle can be enhanced or suppressed, or totally destroyed.

  12. Position sensor for linear synchronous motors employing halbach arrays

    SciTech Connect (OSTI)

    Post, Richard Freeman

    2014-12-23

    A position sensor suitable for use in linear synchronous motor (LSM) drive systems employing Halbach arrays to create their magnetic fields is described. The system has several advantages over previously employed ones, especially in its simplicity and its freedom from being affected by weather conditions, accumulated dirt, or electrical interference from the LSM system itself.

  13. Annular linear induction pump with an externally supported duct

    DOE Patents [OSTI]

    Craig, Edwin R.; Semken, Robert S.

    1979-01-01

    Several embodiments of an annular linear induction pump for pumping liquid metals are disclosed having the features of generally one pass flow of the liquid metal through the pump and an increased efficiency resulting from the use of thin duct walls to enclose the stator. The stator components of this pump are removable for repair and replacement.

  14. Scalable Library for the Parallel Solution of Sparse Linear Systems

    Energy Science and Technology Software Center (OSTI)

    1993-07-14

    BlockSolve is a scalable parallel software library for the solution of large sparse, symmetric systems of linear equations. It runs on a variety of parallel architectures and can easily be ported to others. BlockSovle is primarily intended for the solution of sparse linear systems that arise from physical problems having multiple degrees of freedom at each node point. For example, when the finite element method is used to solve practical problems in structural engineering, eachmore » node will typically have anywhere from 3-6 degrees of freedom associated with it. BlockSolve is written to take advantage of problems of this nature; however, it is still reasonably efficient for problems that have only one degree of freedom associated with each node, such as the three-dimensional Poisson problem. It does not require that the matrices have any particular structure other than being sparse and symmetric. BlockSolve is intended to be used within real application codes. It is designed to work best in the context of our experience which indicated that most application codes solve the same linear systems with several different right-hand sides and/or linear systems with the same structure, but different matrix values multiple times.« less

  15. SLAC linear collider: the machine, the physics, and the future

    SciTech Connect (OSTI)

    Richter, B.

    1981-11-01

    The SLAC linear collider, in which beams of electrons and positrons are accelerated simultaneously, is described. Specifications of the proposed system are given, with calculated preditions of performance. New areas of research made possible by energies in the TeV range are discussed. (GHT)

  16. Translation and integration of numerical atomic orbitals in linear molecules

    SciTech Connect (OSTI)

    Heinäsmäki, Sami

    2014-02-14

    We present algorithms for translation and integration of atomic orbitals for LCAO calculations in linear molecules. The method applies to arbitrary radial functions given on a numerical mesh. The algorithms are based on pseudospectral differentiation matrices in two dimensions and the corresponding two-dimensional Gaussian quadratures. As a result, multicenter overlap and Coulomb integrals can be evaluated effectively.

  17. Biomass Program Overview

    SciTech Connect (OSTI)

    2010-01-01

    This document provides an overview of the Biomass Program's mission, strategic goals, and research approach.

  18. ARM - Program Fact Sheets

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

    MaterialsProgram Fact Sheets Publications Journal Articles Conference Documents Program Documents & Technical Reports Publications Database Public Information Materials Image Library Videos Publication Resources Submit a Publication Publishing Procedures Acronyms Glossary Logos Contacts RSS for Publications Information Materials Annual Reports Program Fact Sheets Campaign Backgrounders Education and Outreach Posters Brochures Research Highlights Summaries Program Fact Sheets Please contact

  19. Laser Programs Highlights 1998

    SciTech Connect (OSTI)

    Lowdermilk, H.; Cassady, C.

    1999-12-01

    This report covers the following topics: Commentary; Laser Programs; Inertial Confinement Fusion/National Ignition Facility (ICF/NIF); Atomic Vapor Laser Isotope Separation (AVLIS); Laser Science and Technology (LS&T); Information Science and Technology Program (IS&T); Strategic Materials Applications Program (SMAP); Medical Technology Program (MTP) and Awards.

  20. Regional Energy Efficiency Programs

    Energy.gov [DOE]

    This presentation covers regional industrial energy efficiency programs in the Midwest, Southeast, and Southwest.

  1. Light water reactor program

    SciTech Connect (OSTI)

    Franks, S.M.

    1994-12-31

    The US Department of Energy`s Light Water Reactor Program is outlined. The scope of the program consists of: design certification of evolutionary plants; design, development, and design certification of simplified passive plants; first-of-a-kind engineering to achieve commercial standardization; plant lifetime improvement; and advanced reactor severe accident program. These program activities of the Office of Nuclear Energy are discussed.

  2. Better Buildings Neighborhood Program

    Energy.gov [DOE]

    U.S. Department of Energy Better Buildings Neighborhood Program: Business Models Guide, October 27, 2011.

  3. SEP Program Planning Template ("Program Planning Template") ...

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

    File Program Planning Template More Documents & Publications Commute Mode Switching Impact Tool Energy Intensity Indicators Data Refrigerator-Freezers (multiple defrost waiver)...

  4. Tribal Energy Program - 2009 Program Review - Agenda

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

    Registration starts at 12:00 p.m. on Monday and at 8:00 a.m. Tuesday through Thursday. DETAILED AGENDA 2016 Office of Indian Energy Program Review November 14-17, 2016 MONDAY, NOVEMBER 14 (1:00 p.m.-5:30 p.m.) TIME DESCRIPTION PRESENTERS 12:00 p.m. Registration 1:00 p.m. Invocation 1:10 p.m. Welcoming Remarks Director, DOE Office of Indian Energy Policy and Chris Deschene Programs Indian Energy Program Moderator: Lizana Pierce (DOE) 1:40 p.m. DOE Indian Energy Program Overview Lizana Pierce 2:20

  5. Technology Commercialization Program 1991

    SciTech Connect (OSTI)

    Not Available

    1991-11-01

    This reference compilation describes the Technology Commercialization Program of the Department of Energy, Defense Programs. The compilation consists of two sections. Section 1, Plans and Procedures, describes the plans and procedures of the Defense Programs Technology Commercialization Program. The second section, Legislation and Policy, identifies legislation and policy related to the Program. The procedures for implementing statutory and regulatory requirements are evolving with time. This document will be periodically updated to reflect changes and new material.

  6. LANSCE | Users | User Program

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

    LANSCE User Program LANSCE's User Program ensures the research it oversees represents the cutting edge of nuclear and materials science and technology. The User Program plays a key role in training the next generation of top scientists, attracting the best graduate students, postdoctoral researchers, and early-career scientists (defined as those less than 40-years old). The User Program typically begins with the first call for proposals and run until the end of the run-cycle. The User-Program

  7. Centralized Procurement Program

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

    Centralized Procurement Program What's New Who to Contact Current Products BOAs MOC Integrated Team Program Elements Future Products Welcome to the Carlsbad Field Office’s (CBFO) Centralized Procurement Program (CPP) Web Page. The purpose of the Centralized Procurement Program is to provide a standardized, economical system of acquisition and distribution of containers and equipment used for shipping Transuranic (TRU) Waste to the Waste Isolation Pilot Plant (WIPP). The program is available

  8. LDRD Program Plan master

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

    Laboratory-Directed Research and Development Program FY2016 Program Plan Thomas Jefferson National Accelerator Facility Newport News, Virginia Thomas Jefferson National Accelerator Facility Laboratory-Directed Research and Development Program FY2016 Program Plan Introduction The Thomas Jefferson National Accelerator Facility (Jefferson Lab) Laboratory- Directed Research and Development (LDRD) program was planned through a formal management process consistent with DOE Order 413.2B, including

  9. Geothermal Technologies Program Overview

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

    Jay Nathwani Acting Program Manager Geothermal Technologies Program Office of Energy Efficiency and Renewable Energy The Geothermal Technologies Program Overview May 18 2010 Energy Efficiency & Renewable Energy eere.energy.gov Geothermal Technologies Program (GTP) Program Topic Areas *Low Temperature, Geopressured and Coproduced Resources *Innovative Exploration Technologies National Goals *Economy Putting people to work in the near- term, and in the future *Security Developing and expanding

  10. Introduction to Control Theory. Part 2. Laplace Transforms and Linear Systems

    SciTech Connect (OSTI)

    Scheinker, Alexander

    2015-09-11

    Presentation for summer students. Start by considering linear differential equations, and how to solve them. The Laplace Transform is a great tool for solving linear differential equations.

  11. Time-of-flight secondary ion mass spectrometry of deuterated linear poly(dimethylsiloxane)

    SciTech Connect (OSTI)

    Zhang, X.K.; Stuart, J.O.; Clarson, S.J. ); Sabata, A. ); Beaucage, G. )

    1994-08-29

    Mass spectrometry (MS) has previously proved to be very valuable for characterizing the thermal decomposition of poly-(dimethylsiloxane) (PDMS) via pyrolysis-MS. Secondary ion mass spectrometry (SIMS) has also been applied to identify the various fragments characteristic of PDMS and thus give fingerprint'' spectra for identification purposes. This paper describes the characterization of deuterated linear PDMS -[(CD[sub 3])[sub 2]SiO][sub n]- using time-of-flight secondary ion mass spectrometry. The work is part of a program investigating the conformations and interactions of deuterated siloxanes in isotopic blends -[(CD[sub 3])[sub 2]SiO][sub n]-/-[CH[sub 3][sub 2]SiO][sub n]- using small-angle neutron scattering. It is therefore clearly important to demonstrate that no deuterium/hydrogen exchanges occurred during the synthetic methodology used.

  12. Linear motor drive system for continuous-path closed-loop position control of an object

    DOE Patents [OSTI]

    Barkman, William E.

    1980-01-01

    A precision numerical controlled servo-positioning system is provided for continuous closed-loop position control of a machine slide or platform driven by a linear-induction motor. The system utilizes filtered velocity feedback to provide system stability required to operate with a system gain of 100 inches/minute/0.001 inch of following error. The filtered velocity feedback signal is derived from the position output signals of a laser interferometer utilized to monitor the movement of the slide. Air-bearing slides mounted to a stable support are utilized to minimize friction and small irregularities in the slideway which would tend to introduce positioning errors. A microprocessor is programmed to read command and feedback information and converts this information into the system following error signal. This error signal is summed with the negative filtered velocity feedback signal at the input of a servo amplifier whose output serves as the drive power signal to the linear motor position control coil.

  13. TFE Verification Program

    SciTech Connect (OSTI)

    Not Available

    1990-03-01

    The objective of the semiannual progress report is to summarize the technical results obtained during the latest reporting period. The information presented herein will include evaluated test data, design evaluations, the results of analyses and the significance of results. The program objective is to demonstrate the technology readiness of a TFE suitable for use as the basic element in a thermionic reactor with electric power output in the 0.5 to 5.0 MW(e) range, and a full-power life of 7 years. The TF Verification Program builds directly on the technology and data base developed in the 1960s and 1970s in an AEC/NASA program, and in the SP-100 program conducted in 1983, 1984 and 1985. In the SP-100 program, the attractive but concern was expressed over the lack of fast reactor irradiation data. The TFE Verification Program addresses this concern. The general logic and strategy of the program to achieve its objectives is shown on Fig. 1-1. Five prior programs form the basis for the TFE Verification Program: (1) AEC/NASA program of the 1960s and early 1970; (2) SP-100 concept development program;(3) SP-100 thermionic technology program; (4) Thermionic irradiations program in TRIGA in FY-86; (5) and Thermionic Technology Program in 1986 and 1987. 18 refs., 64 figs., 43 tabs.

  14. ILC Marx Modulator Development Program Status

    SciTech Connect (OSTI)

    Burkhart, C.; Beukers, T.; Larsen, R.; Macken, K.; Nguyen, M.; Olsen, J.; Tang, T.; /SLAC

    2009-03-04

    Development of a first generation prototype (P1) Marx-topology klystron modulator for the International Linear Collider is nearing completion at the Stanford Linear Accelerator Center. It is envisioned as a smaller, lower cost, and higher reliability alternative to the present, bouncer-topology, 'Baseline Conceptual Design'. The Marx presents several advantages over conventional klystron modulator designs. It is physically smaller; there is no pulse transformer (quite massive at ILC parameters) and the energy storage capacitor bank is quite small, owing to the active droop compensation. It is oil-free; voltage hold-off is achieved using air insulation. It is air cooled; the secondary air-water heat exchanger is physically isolated from the electronic components. The P1-Marx employs all solid state elements; IGBTs and diodes, to control the charge, discharge and isolation of the cells. A general overview of the modulator design and the program status are presented.

  15. FPGA-based Klystron linearization implementations in scope of ILC

    SciTech Connect (OSTI)

    Omet, M.; Michizono, S.; Varghese, P.; Schlarb, H.; Branlard, J.; Cichalewski, W.

    2015-01-23

    We report the development and implementation of four FPGA-based predistortion-type klystron linearization algorithms. Klystron linearization is essential for the realization of ILC, since it is required to operate the klystrons 7% in power below their saturation. The work presented was performed in international collaborations at the Fermi National Accelerator Laboratory (FNAL), USA and the Deutsches Elektronen Synchrotron (DESY), Germany. With the newly developed algorithms, the generation of correction factors on the FPGA was improved compared to past algorithms, avoiding quantization and decreasing memory requirements. At FNAL, three algorithms were tested at the Advanced Superconducting Test Accelerator (ASTA), demonstrating a successful implementation for one algorithm and a proof of principle for two algorithms. Furthermore, the functionality of the algorithm implemented at DESY was demonstrated successfully in a simulation.

  16. Power Saving Optimization for Linear Collider Interaction Region Parameters

    SciTech Connect (OSTI)

    Seryi, Andrei; /SLAC

    2009-10-30

    Optimization of Interaction Region parameters of a TeV energy scale linear collider has to take into account constraints defined by phenomena such as beam-beam focusing forces, beamstrahlung radiation, and hour-glass effect. With those constraints, achieving a desired luminosity of about 2E34 would require use of e{sup +}e{sup -} beams with about 10 MW average power. Application of the 'travelling focus' regime may allow the required beam power to be reduced by at least a factor of two, helping reduce the cost of the collider, while keeping the beamstrahlung energy loss reasonably low. The technique is illustrated for the 500 GeV CM parameters of the International Linear Collider. This technique may also in principle allow recycling the e{sup +}e{sup -} beams and/or recuperation of their energy.

  17. Scalar mesons in three-flavor linear sigma models

    SciTech Connect (OSTI)

    Deirdre Black; Amir H. Fariborz; Sherif Moussa; Salah Nasri; Joseph Schrechter

    2001-09-01

    The three flavor linear sigma model is studied in order to understand the role of possible light scalar mesons in the pi-pi, pi-K and pi-eta elastic scattering channels. The K-matrix prescription is used to unitarize tree-level amplitudes and, with a sufficiently general model, we obtain reasonable ts to the experimental data. The effect of unitarization is very important and leads to the emergence of a nonet of light scalars, with masses below 1 GeV. We compare with a scattering treatment using a more general non-linear sigma model approach and also comment upon how our results t in with the scalar meson puzzle. The latter involves a preliminary investigation of possible mixing between scalar nonets.

  18. Experimental Evaluation of the Free Piston Engine - Linear Alternator (FPLA).

    SciTech Connect (OSTI)

    Leick, Michael T.; Moses, Ronald W.

    2015-03-01

    This report describes the experimental evaluation of a prototype free piston engine - linear alternator (FPLA) system developed at Sandia National Laboratories. The opposed piston design wa developed to investigate its potential for use in hybrid electric vehicles (HEVs). The system is mechanically simple with two - stroke uniflow scavenging for gas exchange and timed port fuel injection for fuel delivery, i.e. no complex valving. Electrical power is extracted from piston motion through linear alternators wh ich also provide a means for passive piston synchronization through electromagnetic coupling. In an HEV application, this electrical power would be used to charge the batteries. The engine - alternator system was designed, assembled and operated over a 2 - year period at Sandia National Laboratories in Livermore, CA. This report primarily contains a description of the as - built system, modifications to the system to enable better performance, and experimental results from start - up, motoring, and hydrogen combus tion tests.

  19. When linear stability does not exclude nonlinear instability

    SciTech Connect (OSTI)

    Kevrekidis, P. G.; Pelinovsky, D. E.; Saxena, A.

    2015-05-29

    We describe a mechanism that results in the nonlinear instability of stationary states even in the case where the stationary states are linearly stable. In this study, this instability is due to the nonlinearity-induced coupling of the linearization’s internal modes of negative energy with the continuous spectrum. In a broad class of nonlinear Schrödinger equations considered, the presence of such internal modes guarantees the nonlinear instability of the stationary states in the evolution dynamics. To corroborate this idea, we explore three prototypical case examples: (a) an antisymmetric soliton in a double-well potential, (b) a twisted localized mode in a one-dimensional lattice with cubic nonlinearity, and (c) a discrete vortex in a two-dimensional saturable lattice. In all cases, we observe a weak nonlinear instability, despite the linear stability of the respective states.

  20. FPGA-based Klystron linearization implementations in scope of ILC

    DOE PAGES-Beta [OSTI]

    Omet, M.; Michizono, S.; Matsumoto, T.; Miura, T.; Qiu, F.; Chase, B.; Varghese, P.; Schlarb, H.; Branlard, J.; Cichalewski, W.

    2015-01-23

    We report the development and implementation of four FPGA-based predistortion-type klystron linearization algorithms. Klystron linearization is essential for the realization of ILC, since it is required to operate the klystrons 7% in power below their saturation. The work presented was performed in international collaborations at the Fermi National Accelerator Laboratory (FNAL), USA and the Deutsches Elektronen Synchrotron (DESY), Germany. With the newly developed algorithms, the generation of correction factors on the FPGA was improved compared to past algorithms, avoiding quantization and decreasing memory requirements. At FNAL, three algorithms were tested at the Advanced Superconducting Test Accelerator (ASTA), demonstrating a successfulmore » implementation for one algorithm and a proof of principle for two algorithms. Furthermore, the functionality of the algorithm implemented at DESY was demonstrated successfully in a simulation.« less