Sample records for obtained precautionary steps

  1. Relevance of the precautionary principle in water recycling 

    E-Print Network [OSTI]

    Schäfer, Andrea; Beder, S

    2006-01-01T23:59:59.000Z

    In an engineering context the precautionary principle is often perceived as an excuse to do nothing or a substantial barrier to technical progress. The precautionary principle requires that remedial measures be taken in ...

  2. A field study of the relationships between locus of control and perceived risk and precautionary behavior

    E-Print Network [OSTI]

    Slimak, Marie

    1992-01-01T23:59:59.000Z

    . (August, 1992) Marie Slimak, B. S. , Texas A&M University Chair of Advisory Committee: Dr. Winfred Arthur, Jr. The use of locus of control as a predictor of accidents is based on the premise that individuals with an internal locus of control are more... likely to take active steps to avoid aversive situations than are individuals with an external locus of control. Precautionary behavior that does not prevent an accident from occurring but reduces severity of injury, however, may be elicited more...

  3. Towards a more inclusive and precautionary indicator of global sustainability

    E-Print Network [OSTI]

    Pezzey, Jack

    an environmentally pessimistic, physical constraint on global warming. Our methodology extends the World Bank growth; technical progress #12;2 1. Introduction Are current levels of global human well1 Towards a more inclusive and precautionary indicator of global sustainability John C.V. Pezzeya

  4. Clamping of Solid Tungsten Components for the Bulk W Divertor Row in JET – Precautionary Design for a Brittle Material

    E-Print Network [OSTI]

    Clamping of Solid Tungsten Components for the Bulk W Divertor Row in JET – Precautionary Design for a Brittle Material

  5. Letter to the Editor The precautionary principle and wind-farm planning: Data

    E-Print Network [OSTI]

    Donázar, José A.

    a consequence of the less intensive monitoring of this species and of mortality in wind-farms throughout SpainLetter to the Editor The precautionary principle and wind-farm planning: Data scarcity does to our paper (Carrete et al., 2009) help to clarify issues in the field of wind energy planning, thus

  6. Instructions to obtain the FBI background check Long-Stay Valencia Students The FBI Background Check is the first step in a two-part process. The FBI Background Check takes 4-6

    E-Print Network [OSTI]

    Hull, Elaine

    Instructions to obtain the FBI background check Long-Stay Valencia Students The FBI Background Check is the first step in a two-part process. The FBI Background Check takes 4-6 weeks for processing form, fingerprint card and payment--to the following address: FBI CJIS Division ­ Record Request 1000

  7. Step by Step

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBiSiteNeutron Scattering4 ByWatchingStateAbout UsStencilStepbyStep

  8. Next Step for STEP

    SciTech Connect (OSTI)

    Wood, Claire [CTSI; Bremner, Brenda [CTSI

    2013-08-09T23:59:59.000Z

    The Siletz Tribal Energy Program (STEP), housed in the Tribe’s Planning Department, will hire a data entry coordinator to collect, enter, analyze and store all the current and future energy efficiency and renewable energy data pertaining to administrative structures the tribe owns and operates and for homes in which tribal members live. The proposed data entry coordinator will conduct an energy options analysis in collaboration with the rest of the Siletz Tribal Energy Program and Planning Department staff. An energy options analysis will result in a thorough understanding of tribal energy resources and consumption, if energy efficiency and conservation measures being implemented are having the desired effect, analysis of tribal energy loads (current and future energy consumption), and evaluation of local and commercial energy supply options. A literature search will also be conducted. In order to educate additional tribal members about renewable energy, we will send four tribal members to be trained to install and maintain solar panels, solar hot water heaters, wind turbines and/or micro-hydro.

  9. The Precautionary Principle (with Application to the Genetic Modification of Organisms)

    E-Print Network [OSTI]

    Taleb, Nassim Nicholas; Douady, Raphael; Norman, Joseph; Bar-Yam, Yaneer

    2014-01-01T23:59:59.000Z

    We present a non-naive version of the Precautionary (PP) that allows us to avoid paranoia and paralysis by confining precaution to specific domains and problems. PP is intended to deal with uncertainty and risk in cases where the absence of evidence and the incompleteness of scientific knowledge carries profound implications and in the presence of risks of "black swans", unforeseen and unforeseable events of extreme consequence. We formalize PP, placing it within the statistical and probabilistic structure of ruin problems, in which a system is at risk of total failure, and in place of risk we use a formal fragility based approach. We make a central distinction between 1) thin and fat tails, 2) Local and systemic risks and place PP in the joint Fat Tails and systemic cases. We discuss the implications for GMOs (compared to Nuclear energy) and show that GMOs represent a public risk of global harm (while harm from nuclear energy is comparatively limited and better characterized). PP should be used to prescribe ...

  10. SPAR-H Step-by-Step Guidance

    SciTech Connect (OSTI)

    W. J. Galyean; A. M. Whaley; D. L. Kelly; R. L. Boring

    2011-05-01T23:59:59.000Z

    This guide provides step-by-step guidance on the use of the SPAR-H method for quantifying Human Failure Events (HFEs). This guide is intended to be used with the worksheets provided in: 'The SPAR-H Human Reliability Analysis Method,' NUREG/CR-6883, dated August 2005. Each step in the process of producing a Human Error Probability (HEP) is discussed. These steps are: Step-1, Categorizing the HFE as Diagnosis and/or Action; Step-2, Rate the Performance Shaping Factors; Step-3, Calculate PSF-Modified HEP; Step-4, Accounting for Dependence, and; Step-5, Minimum Value Cutoff. The discussions on dependence are extensive and include an appendix that describes insights obtained from the psychology literature.

  11. NEXT STEPS

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGY TAXBalanced Scorecard Federal2 to:Diesel Engines|Foreign Travel RequestNEXT STEPS The

  12. Step 5b: Help Program Contractors Obtain the Necessary Equipment...

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

    Duct blaster-1,500 Combustion analyzer-300 Digital micro-manometer-500 Digital carbon monoxide analyzer-150 Gas leak detection devices-150 Infrared camera-2,500...

  13. STEP Preferred Contractors

    Broader source: Energy.gov [DOE]

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

  14. STEP Program Benchmark Report

    Broader source: Energy.gov [DOE]

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

  15. STEP Intern Job Description

    Broader source: Energy.gov [DOE]

    STEP Intern Job Description, from the Tool Kit Framework: Small Town University Energy Program (STEP).

  16. STEP Participation Agreement

    Broader source: Energy.gov [DOE]

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

  17. STEP Participant Survey Report

    Broader source: Energy.gov [DOE]

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

  18. STEP Partner Presentation

    Broader source: Energy.gov [DOE]

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

  19. STEP-by-STEP Program Summary | Department of Energy

    Energy Savers [EERE]

    Energy Program (STEP). E6b STEP-by-STEP Program Summary.pdf More Documents & Publications STEP Request For Incentives STEP Participation Agreement Communications Consultant RFP...

  20. Deflection of stepped shafts

    E-Print Network [OSTI]

    Alexander, Richard Marvin

    1967-01-01T23:59:59.000Z

    transducer. 15 Displacement transducer circuitry. 16 Sa. First static load configuration for the one-stepped shaft, with station numbers shown. . . . . . . . . . 22 Second static load configuration for the one- stepped shaft . . 22 9a. First static load... configuration for the two-stepped shaft, with station numbers shown. . . . . . . . . . 23 9b. Second static load configuration for the two- stepped shaft . . 23 10. Comparison between graphical and experimental values of static deflection for the one...

  1. STEP Intern Reference Check Sheet

    Broader source: Energy.gov [DOE]

    STEP Intern Reference Check Sheet, from the Tool Kit Framework: Small Town University Energy Program (STEP).

  2. STEP Utility Data Release Form

    Broader source: Energy.gov [DOE]

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

  3. STEP Utility Bill Analysis Report

    Broader source: Energy.gov [DOE]

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

  4. STEP Participant Survey Executive Summary

    Broader source: Energy.gov [DOE]

    STEP Participant Survey Executive Summary, from the Tool Kit Framework: Small Town University Energy Program (STEP).

  5. PI & Project Team Step-By-Step Procedure

    E-Print Network [OSTI]

    Shyy, Wei

    Proposal Management PI & Project Team Cancel PAF Step-By-Step Procedure Last updated: 4/1/2013 1;Proposal Management PI & Project Team Cancel PAF Step-By-Step Procedure Last updated: 10/01/09 2 of 2 http of 2 http://eresearch.umich.edu Project Team Cancel PAF A PAF can be cancelled during the following

  6. PI & Project Team Step-By-Step Procedure

    E-Print Network [OSTI]

    Shyy, Wei

    Proposal Management PI & Project Team Grants.gov Step-By-Step Procedure Last updated: 8/1/2013 1 Management PI & Project Team Grants.gov Step-By-Step Procedure Last updated: 8/1/2013 4 of 21 http of 21 http://eresearch.umich.edu Grants.gov from eRPM This procedure is a supplement to the rest

  7. Step by Step Instructions for 2009/10 Budget Reports

    E-Print Network [OSTI]

    Thompson, Michael

    SAS FM Step by Step Instructions for 2009/10 Budget Reports - 1 - #12;Table of Contents SUMMARY...................................................12 STEP 4 ­ INCLUDING THE REPORT WITH YOUR NARRATIVE BUDGET SUBMISSION.....13 STEP 4 ­ INCLUDING THE REPORT WITH YOUR NARRATIVE BUDGET SUBMISSION.....13 OPTION 1 ­ PASTE THE REPORT AS A PICTURE INTO A WORD

  8. Preliminary Steps Ethical Issues Producing Data

    E-Print Network [OSTI]

    Watkins, Joseph C.

    : · What can I measure? · What shall I measure? · How shall I measure it? · How frequently shall I measure it? · What obstacle do I face in obtaining a reliable measure? 4 / 8 #12;Preliminary Steps Ethical be difficult judgements and decisions. Two sources of guidance are · the Ethical Guidelines for Statistical

  9. SPAR-H Step-by-Step Guidance

    SciTech Connect (OSTI)

    April M. Whaley; Dana L. Kelly; Ronald L. Boring; William J. Galyean

    2012-06-01T23:59:59.000Z

    Step-by-step guidance was developed recently at Idaho National Laboratory for the US Nuclear Regulatory Commission on the use of the Standardized Plant Analysis Risk-Human Reliability Analysis (SPAR-H) method for quantifying Human Failure Events (HFEs). This work was done to address SPAR-H user needs, specifically requests for additional guidance on the proper application of various aspects of the methodology. This paper overviews the steps of the SPAR-H analysis process and highlights some of the most important insights gained during the development of the step-by-step directions. This supplemental guidance for analysts is applicable when plant-specific information is available, and goes beyond the general guidance provided in existing SPAR-H documentation. The steps highlighted in this paper are: Step-1, Categorizing the HFE as Diagnosis and/or Action; Step-2, Rate the Performance Shaping Factors; Step-3, Calculate PSF-Modified HEP; Step-4, Accounting for Dependence, and; Step-5, Minimum Value Cutoff.

  10. Assign Ad Hoc Reviewer Step-By-Step Procedure

    E-Print Network [OSTI]

    Shyy, Wei

    Proposal Management Reviewer Assign Ad Hoc Reviewer Step-By-Step Procedure Last updated: 12/19/2013 1 of 2 http://eresearch.umich.edu Assign an Ad Hoc Reviewer Based on the information provided as a Reviewer. Anyone who has an account in the system can be added as an Ad Hoc Reviewer. Who Can Assign Ad Hoc

  11. Egypt's next steps Ahmed Zewail

    E-Print Network [OSTI]

    Zewail, Ahmed

    1 Egypt's next steps Ahmed Zewail 3 Feb 2011 Mubarak must step down, a new constitution must change, writes Ahmed Zewail. CAIRO The revolt that has erupted across Egypt is in many ways historic than a better future for Egypt and its people. In this difficult time, the military has earned

  12. STEP Non-Participant Survey Report

    Broader source: Energy.gov [DOE]

    STEP Non-Participant Survey Report, from the Tool Kit Framework: Small Town University Energy Program (STEP).

  13. OPTIMUM PLASMA STATES FOR NEXT STEP TOKAMAKS

    SciTech Connect (OSTI)

    LIN-LIU,YR; STAMBAUGH,RD

    2002-11-01T23:59:59.000Z

    OAK A271 OPTIMUM PLASMA STATES FOR NEXT STEP TOKAMAKS. The dependence of the ideal ballooning {beta} limit on aspect ratio, A, and elongation {kappa} is systematically explored for nearly 100% bootstrap current driven tokamak equilibria in a wide range of the shape parameters (A = 1.2-7.0, {kappa} = 1.5-6.0 with triangularity {delta} = 0.5). The critical {beta}{sub N} is shown to be optimal at {kappa} = 3.0-4.0 for all A studied and increases as A decreases with a dependence close to A{sup -0.5}. The results obtained can be used as a theoretical basis for the choice of optimum aspect ratio and elongation of next step burning plasma tokamaks or tokamak reactors.

  14. Analysis of step-to-step and intrastep gait patterns

    E-Print Network [OSTI]

    Lee, Gyusung

    1996-01-01T23:59:59.000Z

    the joint movement patterns in three dimensions for the knee, hip, and ankle joints. First, the existence of a correlation between successive steps was investigated. The angle data from each stride was examined at specific points of the gait cycle. Second...

  15. Piezoelectric step-motion actuator

    DOE Patents [OSTI]

    Mentesana; Charles P. (Leawood, KS)

    2006-10-10T23:59:59.000Z

    A step-motion actuator using piezoelectric material to launch a flight mass which, in turn, actuates a drive pawl to progressively engage and drive a toothed wheel or rod to accomplish stepped motion. Thus, the piezoelectric material converts electrical energy into kinetic energy of the mass, and the drive pawl and toothed wheel or rod convert the kinetic energy of the mass into the desired rotary or linear stepped motion. A compression frame may be secured about the piezoelectric element and adapted to pre-compress the piezoelectric material so as to reduce tensile loads thereon. A return spring may be used to return the mass to its resting position against the compression frame or piezoelectric material following launch. Alternative embodiment are possible, including an alternative first embodiment wherein two masses are launched in substantially different directions, and an alternative second embodiment wherein the mass is eliminated in favor of the piezoelectric material launching itself.

  16. Hydrodesulfurization and hydrodenitrogenation catalysts obtained from coal mineral matter

    DOE Patents [OSTI]

    Liu, Kindtoken H. D. (Newark, DE); Hamrin, Jr., Charles E. (Lexington, KY)

    1982-01-01T23:59:59.000Z

    A hydrotreating catalyst is prepared from coal mineral matter obtained by low temperature ashing coals of relatively low bassanite content by the steps of: (a) depositing on the low temperature ash 0.25-3 grams of an iron or nickel salt in water per gram of ash and drying a resulting slurry; (b) crushing and sizing a resulting solid; and (c) heating the thus-sized solid powder in hydrogen.

  17. University Park “STEP-UP” Proposal

    Broader source: Energy.gov [DOE]

    University Park “STEP-UP” Proposal: DE-FOA-0000148, from the Tool Kit Framework: Small Town University Energy Program (STEP).

  18. FIRST SOLAR CELLS ON SILICON RIBBONS OBTAINED BY FAST CVD FROM SILANE

    E-Print Network [OSTI]

    Lisbon, University of

    FIRST SOLAR CELLS ON SILICON RIBBONS OBTAINED BY FAST CVD FROM SILANE C. R. Pinto, J. M. Serra, M Lisboa Campo Grande, 1749-016 Lisboa, Portugal ABSTRACT: : In this paper we report our first results on solar cells made on silicon ribbons obtained by a two-step process: pre-ribbons obtained by CVD followed

  19. Step by Step Instruction - ICR - FINAL | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGYWomenthe House Committee on Energy andDepartmentDepartment ofThe platinum/chromiumStep

  20. Steps Toward a Successful Transition to

    E-Print Network [OSTI]

    Kaye, Jason P.

    Steps Toward a Successful Transition to No-Till Sjoerd W. Duiker Soil Management Specialist, Penn .................................................................................. 3 Planning the transition to no ........................................................................ 12 Cover crop selection and management .............................................. 12 STEP 3

  1. Instructions to obtain apostille certification of the FBI background check (Valencia Year-Long Students)

    E-Print Network [OSTI]

    Hull, Elaine

    Instructions to obtain apostille certification of the FBI background check (Valencia Year-Long Students) Once you have received the FBI background check. You will need to proceed with step two, obtain not waste time submitting your FBI Background Check for certification. 1.) Complete the DS-4194 Request

  2. NetStep: a micro-stepped distributed network simulation Olivier Dalle

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    NetStep: a micro-stepped distributed network simulation framework Olivier Dalle Laboratoire I3S UMR This paper presents NetStep, a prototype for the distributed simulation of very large scale network simulations, such as the simulation of peer-to-peer applications. We use sim- ulation micro-steps as a means

  3. Multi-step contrast sensitivity gauge

    DOE Patents [OSTI]

    Quintana, Enrico C; Thompson, Kyle R; Moore, David G; Heister, Jack D; Poland, Richard W; Ellegood, John P; Hodges, George K; Prindville, James E

    2014-10-14T23:59:59.000Z

    An X-ray contrast sensitivity gauge is described herein. The contrast sensitivity gauge comprises a plurality of steps of varying thicknesses. Each step in the gauge includes a plurality of recesses of differing depths, wherein the depths are a function of the thickness of their respective step. An X-ray image of the gauge is analyzed to determine a contrast-to-noise ratio of a detector employed to generate the image.

  4. Step decision rules for multistage stochastic programming

    E-Print Network [OSTI]

    Julien Th ni

    2006-08-08T23:59:59.000Z

    Aug 8, 2006 ... The second idea is to have each expert work with step decision rules. ... OR and Management Sciences (Supply Chain Management ). Citation: ...

  5. Treatment of biomass to obtain ethanol

    DOE Patents [OSTI]

    Dunson, Jr., James B. (Newark, DE); Elander, Richard T. (Evergreen, CO); Tucker, III, Melvin P. (Lakewood, CO); Hennessey, Susan Marie (Avondale, PA)

    2011-08-16T23:59:59.000Z

    Ethanol was produced using biocatalysts that are able to ferment sugars derived from treated biomass. Sugars were obtained by pretreating biomass under conditions of high solids and low ammonia concentration, followed by saccharification.

  6. STEP Utility Bill Analysis Report | Department of Energy

    Energy Savers [EERE]

    STEP Utility Bill Analysis Report, from the Tool Kit Framework: Small Town University Energy Program (STEP). G5d STEP Utility Bill Analysis Report.pdf More Documents &...

  7. Smoothing out step changes of LMP

    SciTech Connect (OSTI)

    Li, Fangxing

    2008-08-15T23:59:59.000Z

    The locational marginal pricing methodology may lead to a step change when system load grows, creating higher financial risk, especially for small and medium-sized market participants. A proposed continuous LMP method is a straightforward solution to eliminate these step changes when load grows. (author)

  8. iSTEP 2011 Uruguay Sarah Belousov

    E-Print Network [OSTI]

    iSTEP 2011 Uruguay Sarah Belousov Yonina Cooper M. Bernardine Dias M. Freddie Dias Afnan Fahim Uruguay's Administraci´on Nacional de Educaci´on P´ublica and their partners; the Qatar Foundation: innovative Student Technology Experience, iSTEP, Uruguay, Montevideo, ICTD, ICT4D, English literacy tools

  9. First-principles calculations of step formation energies and step interactions on TiN(001)

    E-Print Network [OSTI]

    Ciobanu, Cristian

    First-principles calculations of step formation energies and step interactions on TiN(001) Cristian the formation energies and repulsive interactions of monatomic steps on the TiN(001) surface, using den- sity studies on different aspects related to thin film growth on TiN surfaces, few atomistic studies have been

  10. Step 2: Click on the test title Step 3: Click on the test score

    E-Print Network [OSTI]

    Alpay, S. Pamir

    Step 2: Click on the test title Step 3: Click on the test score Step 1: Click on "My Grades test results in HuskyCT Instructors apply settings that determine the extent of the feedback that students see after taking a test in HuskyCT and when that information becomes available. Minimal

  11. Evaluation of Vitrification Processing Step for Rocky Flats Incinerator Ash

    SciTech Connect (OSTI)

    Wigent, W.L.; Luey, J.K.; Scheele, R.D.; Li, H.

    1999-04-08T23:59:59.000Z

    In 1997, Pacific Northwest National Laboratory (PNNL) staff developed a processing option for incinerator ash at the Rocky Flats Environmental Technology Sites (RFETS). This work was performed with support from Los Alamos National Laboratory (LANL) and Safe Sites of Colorado (SSOC). A description of the remediation needs for the RFETS incinerator ash is provided in a report summarizing the recommended processing option for treatment of the ash (Lucy et al. 1998). The recommended process flowsheet involves a calcination pretreatment step to remove carbonaceous material followed by a vitrification processing step for a mixture of glass tit and calcined incinerator ash. Using the calcination pretreatment step to remove carbonaceous material reduced process upsets for the vitrification step, allowed for increased waste loading in the final product, and improved the quality of the final product. Figure 1.1 illustrates the flow sheet for the recommended processing option for treatment of RFETS incinerator ash. In 1998, work at PNNL further developed the recommended flow sheet through a series of studies to better define the vitrification operating parameters and to address secondary processing issues (such as characterizing the offgas species from the calcination process). Because a prototypical rotary calciner was not available for use, studies to evaluate the offgas from the calcination process were performed using a benchtop rotary calciner and laboratory-scale equipment (Lucy et al. 1998). This report focuses on the vitrification process step after ash has been calcined. Testing with full-scale containers was performed using ash surrogates and a muffle furnace similar to that planned for use at RFETS. Small-scale testing was performed using plutonium-bearing incinerator ash to verify performance of the waste form. Ash was not obtained from RFETS because of transportation requirements to calcine the incinerator ash prior to shipment of the material. Because part of PNNL's work was to characterize the ash prior to calcination and to investigate the effect of calcination on product quality, representative material was obtained from LANL. Ash obtained from LANL was selected based on its similarity to that currently stored at RFETS. The plutonium-bearing ashes obtained from LANL are likely from a RFETS incinerator, but the exact origin was not identified.

  12. STEP Energy Coach and Technical Consultant Job Descriptions

    Broader source: Energy.gov [DOE]

    STEP Energy Coach and Technical Consultant Job Descriptions, from the Tool Kit Framework: Small Town University Energy Program (STEP).

  13. A nano-stepping robotic instrumentation platform

    E-Print Network [OSTI]

    Wahab, Adam Joseph

    2013-01-01T23:59:59.000Z

    The development of an Autonomous Nano-stepping Tool (ANT) system is presented. Each ANT is a small, tripodal, robotic instrument capable of untethered precision motion within a quasi-three-dimensional workspace of arbitrary ...

  14. Twelve Steps to Successful Energy Project Management

    E-Print Network [OSTI]

    Smith, W. P.

    by following twelve steps. These steps, which can be grouped into three phases, are outlined in the accompanying flow chart. Phase l, project initiation, includes idea generation, project defi nition and scope, preliminary economics, project support...-range reward for a valuable energy con servation suggestion generally is individual recognition. If interest and participation in the program are to continue, all ideas should be responded to promptly. ~2. Project Definition and Scope (Specifi ?~_tions...

  15. First analysis stepsFirst analysis steps o quality control and optimization

    E-Print Network [OSTI]

    Spang, Rainer

    First analysis stepsFirst analysis steps o quality control and optimization o calibration and error intensities; · background intensities; · quality measures. R and G for each spot on the array. #12 by #12;What is (local) background? usual assumption: total brightness = background brightness (adjacent

  16. Student Conduct Information Packet A Step-by-Step Guide to the Student Conduct Process

    E-Print Network [OSTI]

    Zobin, Nahum

    Student Conduct Information Packet A Step-by-Step Guide to the Student Conduct Process Basic Overview The student conduct process at the College is summarized in the flow chart below. This chart is provided to students to explain the process during the Information Session. #12;Taking a Closer Look

  17. Crowdsourcing step-by-step information extraction to enhance existing how-to videos

    E-Print Network [OSTI]

    Nguyen, Phu Tran

    Millions of learners today use how-to videos to master new skills in a variety of domains. But browsing such videos is often tedious and inefficient because video player interfaces are not optimized for the unique step-by-step ...

  18. CRISP-DM 1.0 Step-by-step data mining guide

    E-Print Network [OSTI]

    Boetticher, Gary D.

    business operations. SPSS (then ISL) had been providing services based on data mining since 1990 and hadCRISP-DM 1.0 Step-by-step data mining guide Pete Chapman (NCR), Julian Clinton (SPSS), Randy Kerber by three "veterans" of the young and immature data mining market. DaimlerChrysler (then Daimler

  19. AEM/S ... Stepping Stone Bill Solitario

    E-Print Network [OSTI]

    AEM/S ... Stepping Stone To Stealth Bill Solitario Professor Systems Engineering September 04, 2003/SENSOR AEM/S #12;TAILORED MATERIAL SYSTEMS #12;Manufacturing Process Seemann Composite Resin Infusion Molding Laminate ­ High Fiber to Resin Volume Ratio = High Strength to Weight CORE MATERIAL DRY FABRIC PEEL PLY

  20. February 2, 2011 Egypt's Next Steps

    E-Print Network [OSTI]

    Zewail, Ahmed

    1 February 2, 2011 Egypt's Next Steps By AHMED ZEWAIL CAIRO -- The revolt that has erupted across Egypt is in many ways historic and should take the nation into a hopeful future. What's unexpected, even, with no religious or ideological agenda other than a better future for Egypt and its people. In this difficult time

  1. FERPA Training Guide FERPA Training Steps

    E-Print Network [OSTI]

    FERPA Training Guide 1 FERPA Training Steps Graduate committee chairs and co-chairs are encouraged-time FERPA training via TrainTraq (if not previously completed). When trying to access the Graduate Committee Degree Evaluation too, the following screen will display if you have not completed FERPA training

  2. Department of Energy Announces Steps to Help Modernize Natural...

    Office of Environmental Management (EM)

    Department of Energy Announces Steps to Help Modernize Natural Gas Infrastructure Department of Energy Announces Steps to Help Modernize Natural Gas Infrastructure July 29, 2014 -...

  3. Smart Grid Outreach and Communication Strategy: Next Steps -...

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

    Next Steps - EAC Recommendations for the Department of Energy (October 17, 2012) Smart Grid Outreach and Communication Strategy: Next Steps - EAC Recommendations for the...

  4. First Steps Toward Developing Renewable Energy and Energy Efficiency...

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

    This is a table on proposed DOE funds regarding the first steps toward developing renewable energy and energy efficiency on Tribal Lands. First Steps Toward Developing Renewable...

  5. A stochastic model for kinesin bidirectional stepping

    SciTech Connect (OSTI)

    Yao, Xiaojun [School of Physics, Shandong University, Jinan 250100 (China) [School of Physics, Shandong University, Jinan 250100 (China); Taishan College, Shandong University, Jinan 250100 (China); Zheng, Yujun, E-mail: yzheng@sdu.edu.cn [School of Physics, Shandong University, Jinan 250100 (China)] [School of Physics, Shandong University, Jinan 250100 (China)

    2014-02-28T23:59:59.000Z

    In this paper, a hand-over-hand stochastic model for the dynamics of the conventional kinesin is constructed. In the model, both forward and backward motions are taken into consideration. First passage time distributions, average velocities, dwell times, and forward/backward step ratios are investigated based on the model. A good agreement between the results of the model and experimental data is achieved under a variety of external loads.

  6. Criticality Calculations for Step-2 GPHS Modules

    SciTech Connect (OSTI)

    Lipinski, Ronald J. [Advanced Nuclear Concepts Department, Sandia National Laboratories, P.O Box 5800, Albuquerque, NM 87185 (United States); Hensen, Danielle L. [Risk and Reliability Department Sandia National Laboratories, P.O Box 5800, Albuquerque, NM 87185 (United States)

    2008-01-21T23:59:59.000Z

    The Multi-Mission Radioisotope Thermoelectric Generator (MMRTG) will use an improved version of the General Purpose Heat Source (GPHS) module as its source of thermal power. This new version, referred to as the Step-2 GPHS Module, has additional and thicker layers of carbon fiber material (Fine Weaved Pierced Fabric) for increased strength over the original GPHS module. The GPHS uses alpha decay of {sup 238}Pu in the oxide form as the primary source of heat, and small amounts of other actinides are also present in the oxide fuel. Criticality calculations have been performed by previous researchers on the original version of the GPHS module (Step 0). This paper presents criticality calculations for the present Step-2 version. The Monte Carlo N-Particle eXtended code (MCNPX) was used for these calculations. Numerous configurations of GPHS module arrays surrounded by wet sand and other materials (to reflect the neutrons back into the stack with minimal absorption) were modeled. For geometries with eight GPHS modules (from a single MMRTG) surrounded by wet sand, the configuration is extremely sub-critical; k{sub eff} is about 0.3. It requires about 1000 GPHS modules (from 125 MMRTGs) in a close-spaced stack to approach criticality (k{sub eff} = 1.0) when surrounded by wet sand. The effect of beryllium in the MMRTG was found to be relatively small.

  7. Criticality calculations for Step-2 GPHS modules.

    SciTech Connect (OSTI)

    Hensen, Danielle Lynn; Lipinski, Ronald J.

    2007-08-01T23:59:59.000Z

    The Multi-Mission Radioisotope Thermoelectric Generator (MMRTG) will use an improved version of the General Purpose Heat Source (GPHS) module as its source of thermal power. This new version, referred to as the Step-2 GPHS Module, has additional and thicker layers of carbon fiber material (Fine Weaved Pierced Fabric) for increased strength over the original GPHS module. The GPHS uses alpha decay of {sup 238}Pu in the oxide form as the primary source of heat, and small amounts of other actinides are also present in the oxide fuel. Criticality calculations have been performed by previous researchers on the original version of the GPHS module (Step 0). This paper presents criticality calculations for the present Step-2 version. The Monte Carlo N-Particle eXtended code (MCNPX) was used for these calculations. Numerous configurations of GPHS module arrays surrounded by wet sand and other materials (to reflect the neutrons back into the stack with minimal absorption) were modeled. For geometries with eight GPHS modules (from a single MMRTG) surrounded by wet sand, the configuration is extremely sub-critical; k{sub eff} is about 0.3. It requires about 1000 GPHS modules (from 125 MMRTGs) in a close-spaced stack to approach criticality (k{sub eff} = 1.0) when surrounded by wet sand. The effect of beryllium in the MMRTG was found to be relatively small.

  8. Action Steps for a Cooperative Research and Development Agreement (CRADA)

    Broader source: Energy.gov [DOE]

    An outline of the steps that DOE laboratories and industry partners fulfill when undertaking projects together.

  9. Multiple time step integrators in ab initio molecular dynamics

    SciTech Connect (OSTI)

    Luehr, Nathan; Martínez, Todd J. [Department of Chemistry, Stanford University, Stanford, California 94305 (United States) [Department of Chemistry, Stanford University, Stanford, California 94305 (United States); The PULSE Institute, Stanford University, Stanford, California 94305 (United States); SLAC National Accelerator Laboratory, Menlo Park, California 94025 (United States); Markland, Thomas E. [Department of Chemistry, Stanford University, Stanford, California 94305 (United States)] [Department of Chemistry, Stanford University, Stanford, California 94305 (United States)

    2014-02-28T23:59:59.000Z

    Multiple time-scale algorithms exploit the natural separation of time-scales in chemical systems to greatly accelerate the efficiency of molecular dynamics simulations. Although the utility of these methods in systems where the interactions are described by empirical potentials is now well established, their application to ab initio molecular dynamics calculations has been limited by difficulties associated with splitting the ab initio potential into fast and slowly varying components. Here we present two schemes that enable efficient time-scale separation in ab initio calculations: one based on fragment decomposition and the other on range separation of the Coulomb operator in the electronic Hamiltonian. We demonstrate for both water clusters and a solvated hydroxide ion that multiple time-scale molecular dynamics allows for outer time steps of 2.5 fs, which are as large as those obtained when such schemes are applied to empirical potentials, while still allowing for bonds to be broken and reformed throughout the dynamics. This permits computational speedups of up to 4.4x, compared to standard Born-Oppenheimer ab initio molecular dynamics with a 0.5 fs time step, while maintaining the same energy conservation and accuracy.

  10. Confinement of neutral fermions by a pseudoscalar double-step potential in (1+1) dimensions

    E-Print Network [OSTI]

    Antonio S. de Castro; Wiliam G. Pereira

    2003-01-09T23:59:59.000Z

    The problem of confinement of neutral fermions in two-dimensional space-time is approached with a pseudoscalar double-step potential in the Dirac equation. Bound-state solutions are obtained when the coupling is of sufficient intensity. The confinement is made plausible by arguments based on effective mass and anomalous magnetic interaction.

  11. STEP Brochure (Spanish) | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists' Research |Regulation Services2014 Update |Department23ICE SUPPORTTo encourageDotSTEP

  12. Early steps in the Cold War

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed NewcatalystNeutronEnvironmentZIRKLE FRUIT reducesEarly Career: Emergent...steps in

  13. Arene Trifluoromethylation: An Effective Strategy to Obtain Air...

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

    Effective Strategy to Obtain Air-Stable nType Organic Semiconductors with Tunable Optoelectronic Arene Trifluoromethylation: An Effective Strategy to Obtain Air-Stable nType...

  14. Policy Flash 2013-24 Fee Determinations: Requirement to Obtain...

    Office of Environmental Management (EM)

    Policy Flash 2013-24 Fee Determinations: Requirement to Obtain Acquisition Executive's Input Policy Flash 2013-24 Fee Determinations: Requirement to Obtain Acquisition Executive's...

  15. Lyondell develops one step isobutylene process

    SciTech Connect (OSTI)

    Not Available

    1992-03-23T23:59:59.000Z

    This paper reports that Lyondell Petrochemical Co., Houston, has developed a one step process to convert normal butylenes to isobutylene, a key component of methyl tertiary butyl ether (MTBE). MTBE is expected to become the additive of choice among U.S. refiners to blend oxygenated gasolines required by 1990 amendments to the Clean Air Act. Lyondell Pres. and Chief Executive Officer Bob Gower the the new process could help assure adequate supplies of MTBE to meet U.S. demand for cleaner burning fuels. Lyondell estimates the capital cost of building a grassroots plant to produce isobutylene with the new process would be less than half the cost of a grassroot plant to produce isobutylene with existing technology starting with normal butane.

  16. Fractal dimensions of the galaxy distribution varying by steps?

    E-Print Network [OSTI]

    Marie-Noelle Celerier; Reuben Thieberger

    2005-04-20T23:59:59.000Z

    The structure of the large scale distribution of the galaxies have been widely studied since the publication of the first catalogs. Since large redshift samples are available, their analyses seem to show fractal correlations up to the observational limits. The value of the fractal dimension(s) calculated by different authors have become the object of a large debate, as have been the value of the expected transition from fractality to a possible large scale homogeneity. Moreover, some authors have proposed that different scaling regimes might be discerned at different lenght scales. To go further on into this issue, we have applied the correlation integral method to the wider sample currently available. We therefore obtain a fractal dimension of the galaxy distribution which seems to vary by steps whose width might be related to the organization hierarchy observed for the galaxies. This result could explain some of the previous results obtained by other authors from the analyses of less complete catalogs and maybe reconcile their apparent discrepancy. However, the method applied here needs to be further checked, since it produces odd fluctuations at each transition scale, which need to be thoroughly explained.

  17. NextSTEPS (Sustainable Transportation Energy Pathways) PROGRAM SUMMARY

    E-Print Network [OSTI]

    California at Davis, University of

    NextSTEPS (Sustainable Transportation Energy Pathways) PROGRAM SUMMARY Institute of Transportation in January 2011, building on the many advances of our Sustainable Transportation Energy Pathways (STEPS Studies University of California, Davis Automakers, energy companies, utilities and governments are making

  18. The EIS process consists of several steps, each with

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

    EIS process consists of several steps, each with opportunities for you to get involved. BPA follows these six steps for EISs on projects, plans and policies. 1. Notice of Intent...

  19. San Antonio's Save for Tomorrow Energy Plant (STEP)

    E-Print Network [OSTI]

    Hernandez, J.

    2013-01-01T23:59:59.000Z

    • Who We Are • Creation of the STEP Program – “The Idea” • What is STEP • STEP Impact on Resource Plan • STEP Programs Overview – Residential & Commercial Energy Efficiency Programs – Demand Response Programs • Program Results • Program Improvements... (equivalent to the amount of energy produced by a medium-sized power plant) – Budget of $849 million through 2020 • Energy Efficiency Programs – Residential – Commercial & Industrial (C&I) • Demand Response Programs – Smart Thermostat – Home Area Network...

  20. Method and apparatus of periodically obtaining accurate opacity monitor readings of an exhaust gas stream

    SciTech Connect (OSTI)

    Weaver, K.L.; Bellows, J.C.

    1990-01-23T23:59:59.000Z

    This patent describes in an opacity monitor associated with an exhaust stack, the monitor having a transmitter and a receiving which cooperate to measure a quantity of particulate matter in an exhaust gas stream, a method of periodically obtaining opacity monitor readings. It comprises: shielding the monitor from the exhaust gas stream by placing two windows adjacent to the monitor, a first window being placed between the transmitter and the exhaust gas stream and a second window being placed between the receiver and the exhaust gas stream; cleaning at least one of the windows for a first predetermined time period by spraying a volatile nonflammable cleaning solvent onto the window by means of a sprayer intermittently operable during the first predetermined time period while wiping the window with a reciprocating wiper arm in resilient engagement therewith; then obtaining an opacity monitor reading by directing a light beam across the exhaust stack from the transmitter via the first window through the exhaust gas stream to the receiver via the second window; and alternately repeating the step of cleaning the window with the step of obtaining an opacity monitor reading.

  1. 2 National Research Foundation National Research Foundation 3 Step by StepGuideliNedocumeNtFoRApplicANtS

    E-Print Network [OSTI]

    Jarrett, Thomas H.

    2 National Research Foundation National Research Foundation 3 Step by Step Foundation National Research Foundation 5 coNteNtS 1. important information .............................6 2)............................23 29. Additional Research outputs.................23 #12;6 National Research Foundation National

  2. Time to pause before the next step

    SciTech Connect (OSTI)

    Siemon, R.E.

    1998-12-31T23:59:59.000Z

    Many scientists, who have staunchly supported ITER for years, are coming to realize it is time to further rethink fusion energy`s development strategy. Specifically, as was suggested by Grant Logan and Dale Meade, and in keeping with the restructuring of 1996, a theme of better, cheaper, faster fusion would serve the program more effectively than ``demonstrating controlled ignition...and integrated testing of the high-heat-flux and nuclear components required to utilize fusion energy...`` which are the important ingredients of ITER`s objectives. The author has personally shifted his view for a mixture of technical and political reasons. On the technical side, he senses that through advanced tokamak research, spherical tokamak research, and advanced stellarator work, scientists are coming to a new understanding that might make a burning-plasma device significantly smaller and less expensive. Thus waiting for a few years, even ten years, seems prudent. Scientifically, there is fascinating physics to be learned through studies of burning plasma on a tokamak. And clearly if one wishes to study burning plasma physics in a sustained plasma, there is no other configuration with an adequate database on which to proceed. But what is the urgency of moving towards an ITER-like step focused on burning plasma? Some of the arguments put forward and the counter arguments are discussed here.

  3. A Step-by-step Guide to the Realisation of Advanced Optical Tweezers

    E-Print Network [OSTI]

    Pesce, Giuseppe; Marago, Onofrio M; Jones, Philip H; Gigain, Sylvain; Sasso, Antonio; Volpe, Giovanni

    2015-01-01T23:59:59.000Z

    Since the pioneering work of Arthur Ashkin, optical tweezers have become an indispensable tool for contactless manipulation of micro- and nanoparticles. Nowadays optical tweezers are employed in a myriad of applications demonstrating the importance of these tools. While the basic principle of optical tweezers is the use of a strongly focused laser beam to trap and manipulate particles, ever more complex experimental set-ups are required in order to perform novel and challenging experiments. With this article, we provide a detailed step- by-step guide for the construction of advanced optical manipulation systems. First, we explain how to build a single-beam optical tweezers on a home-made microscope and how to calibrate it. Improving on this design, we realize a holographic optical tweezers, which can manipulate independently multiple particles and generate more sophisticated wavefronts such as Laguerre-Gaussian beams. Finally, we explain how to implement a speckle optical tweezers, which permit one to employ ...

  4. New Mexico's pioneering steps in commercializing solar power

    SciTech Connect (OSTI)

    Hill, R.R.

    1999-07-01T23:59:59.000Z

    Over the past two years, New Mexico has been engaged in a significant new approach to implement large purchases of solar power. This effort followed a regulatory process that treated solar power generation similar to conventional generation obtained by an investor owned utility under the regulation of a public utility commission. in 1997, Public Service Company of New Mexico (PNM) gained approval to purchase power from a 100-MW combustion turbine facility that would be owned and operated by a wholesale generator. At the same time it issued the approval, and following discussions with the utility, the New Mexico Public Utility Commission (NMPUC) also required PNM to issue a request for proposal for a 5-MW central station solar facility, a major step for solar technologies in the state, in what would be the world's largest of its technology type. In cooperation with the staff of the NMPUC, PNM reviewed the proposals received, and Applied Power Corporation was selected for the photovoltaic portion of the proposed plant, retaining ownership of the plant, assuming the risks connected with the technology, and operating the plant in exchange for a power purchase agreement in a first-of-its-kind contract for photovoltaic. During the NMPUC hearings, various parties raised significant opposition to the cost-recovery mechanism that was proposed and voiced issues about the type of solar plant, its size, cost, and the funding approaches to building it. Because of these issues, alternative proposals were put forth that reduced the size and costs of the plant and had implied changes in ownership and risks. The order issues by the NMPUC on October 21, 1998, requires PNM to impose a charge of 0.5% on its retail electric customers' monthly bills to be used to acquire the solar facilities, but also to obtain other renewable electric power resources, both on a pay-as-you-go basis. This paper identifies the issues and their resolution that similar projects are expected to encounter.

  5. New Mexico's Pioneering Steps in Commercializing Solar Power

    SciTech Connect (OSTI)

    Hill, R.R.

    1999-04-09T23:59:59.000Z

    Over the past two years, New Mexico has been engaged in a significant new approach to implement large purchases of solar power. This effort followed a regulatory process that treated solar power generation similar to conventional generation obtained by an investor-owned utility under the regulation of a public utility commission. In 1997, Public Service Company of New Mexico (PNM) gained approval to purchase power from a 100-MW combustion turbine facility that would be owned and operated by a wholesale generator. At the same time it issued the approval, and following discussions with the utility, the New Mexico Public Utility Commission (NMPUC) also required PNM to issue a request for proposal for a 5-MW central station solar facility, a major step for solar technologies in the state, in what would be the world's largest of its technology type. In cooperation with the staff of the NMPUC, PNM reviewed the proposals received, and Applied Power Corporation was selected for the photovoltaic portion of the proposed plan; retaining ownership of the plant, assuming the risks connected with the technology, and operating the plant in exchange for a power purchase agreement in a first-of-its-kind contract for photovoltaics. During the NMPUC hearings, various parties raised significant opposition to the cost-recovery mechanism that was proposed and voiced issues about the type of solar plant, its size, cost and the tiding approaches to building it. Because of these issues, alternative proposals were put forth that reduced the size and costs of the plant and had implied changes in ownership and risks. The order issued by the NMPUC on October 21, 1998, requires PNM to impose a charge of 0.5% on its retail electric customers' monthly bills to be used to acquire the solar facilities, but also to obtain other renewable electric power resources, both on a pay-as-you-go basis. This paper identifies the issues and their resolution that similar projects are expected to encounter.

  6. Method for localizing and isolating an errant process step

    DOE Patents [OSTI]

    Tobin, Jr., Kenneth W. (Harriman, TN); Karnowski, Thomas P. (Knoxville, TN); Ferrell, Regina K. (Knoxville, TN)

    2003-01-01T23:59:59.000Z

    A method for localizing and isolating an errant process includes the steps of retrieving from a defect image database a selection of images each image having image content similar to image content extracted from a query image depicting a defect, each image in the selection having corresponding defect characterization data. A conditional probability distribution of the defect having occurred in a particular process step is derived from the defect characterization data. A process step as a highest probable source of the defect according to the derived conditional probability distribution is then identified. A method for process step defect identification includes the steps of characterizing anomalies in a product, the anomalies detected by an imaging system. A query image of a product defect is then acquired. A particular characterized anomaly is then correlated with the query image. An errant process step is then associated with the correlated image.

  7. Obama Administration Announces Major Steps Forward to Advance...

    Energy Savers [EERE]

    Obama Administration Announces Major Steps Forward to Advance Energy Efficiency Efforts, Improve Access to Low-Cost Financing for States and Local Communities Obama Administration...

  8. STEP Energy Coach and Technical Consultant Job Descriptions ...

    Energy Savers [EERE]

    Consultant Job Descriptions.pdf More Documents & Publications Technical Consultant RFP Tool Kit Framework: Small Town University Energy Program (STEP) Technical Consultant...

  9. Single-step conversion of cellulose to 5-hydroxymethylfurfural...

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

    of HMF directly from raw natural cellulose represents the last major barrier toward the development of a sustainable HMF platform. Here we report an unprecedented single-step...

  10. Tool Kit Framework: Small Town University Energy Program (STEP)

    Broader source: Energy.gov [DOE]

    Tool Kit Framework: Small Town University Energy Program (STEP), as posted on the U.S. Department of Energy's Better Buildings Neighborhood Program website.

  11. STEPS: A Grid Search Methodology for Optimized Peptide Identification...

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

    A Grid Search Methodology for Optimized Peptide Identification Filtering of MSMS Database Search Results. STEPS: A Grid Search Methodology for Optimized Peptide Identification...

  12. Step decision rules for multistage stochastic programming: a ...

    E-Print Network [OSTI]

    2006-09-27T23:59:59.000Z

    J.-Ph.Vial. ?. September 27, 2006. Abstract. Stochastic programming with step ... imating the stochastic process by a computationally tractable event tree as in ...

  13. Obama Administration Officials to Announce Major Steps toward...

    Energy Savers [EERE]

    of Energy Secretary Steven Chu, U.S. General Services Administrator Martha Johnson and White House Council on Environmental Quality Chair Nancy Sutley, will announce next steps in...

  14. Step change in Fuel Efficiency:Eatons perspective

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

    2011 Eaton Corporation. All rights reserved. Step change in Fuel Efficiency: Eaton's perspective October 2012 2 2 2011 Eaton Corporation. All rights reserved. Many parts of the...

  15. Steps to Establish a Real-Time Transmission Monitoring System...

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

    evaluation of how such a system could be established if one is to be pursued. This joint report merely describes the steps necessary to establish and implement an...

  16. Obama Administration Takes Major Step toward Advanced Vehicles...

    Office of Environmental Management (EM)

    step in moving the Federal fleet further towards advanced vehicles and decreased petroleum consumption, while also cutting costs associated with fuel consumption. Furthering...

  17. Step 3: Develop Plans of Action | Department of Energy

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

    their expected duration, and the personnel responsible. Each pillar?marketing, financing, workforce, and evaluation?requires its own steps for development, but an implementation...

  18. Towards an Open Cloud Marketplace Vision and First Steps

    E-Print Network [OSTI]

    and First Steps.'' October 2013. Page 2 of 12 The Cloud Marketplace e notion of co putin as a co odit

  19. First Steps Toward Developing Renewable Energy and Energy Efficiency...

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

    DOE funds, and proposed cost share for the tribes participating in developing renewable energy and energy efficiency on tribal lands. First Steps Toward Developing...

  20. Steps toward fault-tolerant quantum chemistry.

    SciTech Connect (OSTI)

    Taube, Andrew Garvin

    2010-05-01T23:59:59.000Z

    Developing quantum chemistry programs on the coming generation of exascale computers will be a difficult task. The programs will need to be fault-tolerant and minimize the use of global operations. This work explores the use a task-based model that uses a data-centric approach to allocate work to different processes as it applies to quantum chemistry. After introducing the key problems that appear when trying to parallelize a complicated quantum chemistry method such as coupled-cluster theory, we discuss the implications of that model as it pertains to the computational kernel of a coupled-cluster program - matrix multiplication. Also, we discuss the extensions that would required to build a full coupled-cluster program using the task-based model. Current programming models for high-performance computing are fault-intolerant and use global operations. Those properties are unsustainable as computers scale to millions of CPUs; instead one must recognize that these systems will be hierarchical in structure, prone to constant faults, and global operations will be infeasible. The FAST-OS HARE project is introducing a scale-free computing model to address these issues. This model is hierarchical and fault-tolerant by design, allows for the clean overlap of computation and communication, reducing the network load, does not require checkpointing, and avoids the complexity of many HPC runtimes. Development of an algorithm within this model requires a change in focus from imperative programming to a data-centric approach. Quantum chemistry (QC) algorithms, in particular electronic structure methods, are an ideal test bed for this computing model. These methods describe the distribution of electrons in a molecule, which determine the properties of the molecule. The computational cost of these methods is high, scaling quartically or higher in the size of the molecule, which is why QC applications are major users of HPC resources. The complexity of these algorithms means that MPI alone is insufficient to achieve parallel scaling; QC developers have been forced to use alternative approaches to achieve scalability and would be receptive to radical shifts in the programming paradigm. Initial work in adapting the simplest QC method, Hartree-Fock, to this the new programming model indicates that the approach is beneficial for QC applications. However, the advantages to being able to scale to exascale computers are greatest for the computationally most expensive algorithms; within QC these are the high-accuracy coupled-cluster (CC) methods. Parallel coupledcluster programs are available, however they are based on the conventional MPI paradigm. Much of the effort is spent handling the complicated data dependencies between the various processors, especially as the size of the problem becomes large. The current paradigm will not survive the move to exascale computers. Here we discuss the initial steps toward designing and implementing a CC method within this model. First, we introduce the general concepts behind a CC method, focusing on the aspects that make these methods difficult to parallelize with conventional techniques. Then we outline what is the computational core of the CC method - a matrix multiply - within the task-based approach that the FAST-OS project is designed to take advantage of. Finally we outline the general setup to implement the simplest CC method in this model, linearized CC doubles (LinCC).

  1. Lab obtains approval to begin design on new radioactive waste...

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

    New radioactive waste staging facility Lab obtains approval to begin design on new radioactive waste staging facility The 4-acre complex will include multiple staging buildings...

  2. Idaho Site Obtains Patent for Nuclear Reactor Sodium Cleanup...

    Office of Environmental Management (EM)

    Idaho Site Obtains Patent for Nuclear Reactor Sodium Cleanup Treatment March 28, 2013 - 12:00pm Addthis CWI engineers Jeff Jones, David Tolman, right, and Kirk Dooley...

  3. Structural effects on the oxidation of HCOOH by bismuth-modified Pt(111) electrodes with (100) monatomic steps

    SciTech Connect (OSTI)

    Smith, S.P.E.; Ben-Dor, K.F.; Abruna, H.D.

    1999-10-12T23:59:59.000Z

    Significant enhancements in the electrocatalytic oxidation of HCOOH are obtained on deliberately stepped platinum surfaces with (111) terraces and (100) monatomic steps when bismuth is deposited on terrace and/or step sites. The bismuth-modified surfaces with higher step densities/narrower terrace widths exhibit higher catalytic activity in the oxidation of HCOOH than surfaces with lower step densities/wider terrace widths, behavior which is opposite to that exhibited by the analogous bare (unmodified) surfaces. For Bi/Pt(544) and Bi/Pt(755), with nine- and six-atom wide (111) terraces, respectively, maximum catalytic behavior occurs when bismuth is deposited only on the steps, suggesting that a critical ensemble (critical size), two atoms wide, enhances the reactive intermediate pathway for the complete oxidation of HCOOH over the poisoning reaction pathway. Moreover, the potential for the onset of oxidation of HCOOH shifts to less positive potentials as the terrace width of the bismuth-modified surfaces becomes narrower, suggesting a diminution in the activation energy barrier as the ensemble size becomes smaller. Contrary to the behavior on the stepped surfaces, bismuth-modified, polyoriented spherical platinum electrodes, which contain a random distribution of (111), (100), and (110) faces, exhibit a continuous rise in catalytic activity for HCOOH oxidation with bismuth coverage, even at bismuth coverages approaching 100%.

  4. The Georgia Tech Student and Teacher Enhancement Partnership (STEP)

    E-Print Network [OSTI]

    Gaucher, Eric

    ;STEP Fellows at Tri-Cities High School, Fulton County Christal Gordon--Ph.D. student in ElectricalKalb County Sundiata Jangha--Ph.D student in Mechanical Engineering #12;STEP Fellows at Dunwoody High School, DeKalb County Frank Pyrtle--Ph.D. student in Mechanical Engineering Kendra Taylor--Ph.D. student

  5. Small Town Energy Program (STEP) Final Report revised

    SciTech Connect (OSTI)

    Wilson, Charles (Chuck) T. [Chuck

    2014-01-02T23:59:59.000Z

    University Park, Maryland (“UP”) is a small town of 2,540 residents, 919 homes, 2 churches, 1 school, 1 town hall, and 1 breakthrough community energy efficiency initiative: the Small Town Energy Program (“STEP”). STEP was developed with a mission to “create a model community energy transformation program that serves as a roadmap for other small towns across the U.S.” STEP first launched in January 2011 in UP and expanded in July 2012 to the neighboring communities of Hyattsville, Riverdale Park, and College Heights Estates, MD. STEP, which concluded in July 2013, was generously supported by a grant from the U.S. Department of Energy (DOE). The STEP model was designed for replication in other resource-constrained small towns similar to University Park - a sector largely neglected to date in federal and state energy efficiency programs. STEP provided a full suite of activities for replication, including: energy audits and retrofits for residential buildings, financial incentives, a community-based social marketing backbone and local community delivery partners. STEP also included the highly innovative use of an “Energy Coach” who worked one-on-one with clients throughout the program. Please see www.smalltownenergy.org for more information. In less than three years, STEP achieved the following results in University Park: • 30% of community households participated voluntarily in STEP; • 25% of homes received a Home Performance with ENERGY STAR assessment; • 16% of households made energy efficiency improvements to their home; • 64% of households proceeded with an upgrade after their assessment; • 9 Full Time Equivalent jobs were created or retained, and 39 contractors worked on STEP over the course of the project. Estimated Energy Savings - Program Totals kWh Electricity 204,407 Therms Natural Gas 24,800 Gallons of Oil 2,581 Total Estimated MMBTU Saved (Source Energy) 5,474 Total Estimated Annual Energy Cost Savings $61,343 STEP clients who had a home energy upgrade invested on average $4,500, resulting in a 13% reduction in annual energy use and utility bill savings of $325. Rebates and incentives covered 40%-50% of retrofit cost, resulting in an average simple payback of about 7 years. STEP has created a handbook in which are assembled all the key elements that went into the design and delivery of STEP. The target audiences for the handbook include interested citizens, elected officials and municipal staff who want to establish and run their own efficiency program within a small community or neighborhood, using elements, materials and lessons from STEP.

  6. General Project Sequence The following are typical steps on many projects. Actual required steps may vary from project to project

    E-Print Network [OSTI]

    Mather, Patrick T.

    General Project Sequence The following are typical steps on many projects. Actual required steps may vary from project to project depending upon the scope, complexity, and specific features. Time periods indicated will vary depending on the nature of the project and needs of the user group

  7. Stabilization of a Three-Dimensional Limit Cycle Walking Model through Step-to-Step Ankle Control

    E-Print Network [OSTI]

    Collins, Steven H.

    Stabilization of a Three-Dimensional Limit Cycle Walking Model through Step-to-Step Ankle Control ankle control. If ankle control can contribute significantly to maintaining balance, even in the presence of active foot placement, this might provide an opportunity to improve balance using robotic ankle

  8. COMPUTER ERGONOMIC REVIEW TOOL This tool was designed to provide step-by-step practical guidance to perform simple ergonomic

    E-Print Network [OSTI]

    Russell, Lynn

    COMPUTER ERGONOMIC REVIEW TOOL This tool was designed to provide step-by-step practical guidance to perform simple ergonomic workstation evaluations for computer users. Please use this form to determine how Marketplace at http://marketplace.ucsd.edu/ergonomic.asp for monitor risers, glare screens, screen cleaners

  9. CBER-DETR Nevada Coincident and Leading Employment Two Steps Forward and One Step Back: The Nevada Recovery

    E-Print Network [OSTI]

    Ahmad, Sajjad

    data reported by the Bureau of Labor Statistics. The Nevada Coincident Employment Index includes fourCBER-DETR Nevada Coincident and Leading Employment Indexes1 Two Steps Forward and One Step Back: The Nevada Recovery The Nevada Coincident Employment Index measures the ups and downs of the Nevada economy

  10. Systems Analysis of a Compact Next Step Burning Plasma Experiment

    SciTech Connect (OSTI)

    S.C. Jardin; C.E. Kessel; D. Meade; C. Neumeyer

    2002-02-06T23:59:59.000Z

    A new burning plasma systems code (BPSC) has been developed for analysis of a next step compact burning plasma experiment with copper-alloy magnet technology. We consider two classes of configurations: Type A, with the toroidal field (TF) coils and ohmic heating (OH) coils unlinked, and Type B, with the TF and OH coils linked. We obtain curves of the minimizing major radius as a function of aspect ratio R(A) for each configuration type for typical parameters. These curves represent, to first order, cost minimizing curves, assuming that device cost is a function of major radius. The Type B curves always lie below the Type A curves for the same physics parameters, indicating that they lead to a more compact design. This follows from that fact that a high fraction of the inner region, r < R-a, contains electrical conductor material. However, the fact that the Type A OH and TF magnets are not linked presents fewer engineering challenges and should lead to a more reliable design. Both the Type A and Type B curves have a minimum in major radius R at a minimizing aspect ratio A typically above 2.8 and at high values of magnetic field B above 10 T. The minimizing A occurs at larger values for longer pulse and higher performance devices. The larger A and higher B design points also have the feature that the ratio of the discharge time to the current redistribution time is largest so that steady-state operation can be more realistically prototyped. A sensitivity study is presented for the baseline Type A configuration showing the dependence of the results on the parameters held fixed for the minimization study.

  11. Theoretical Analysis for Obtaining Physical Properties of Composite Electrodes

    E-Print Network [OSTI]

    Weidner, John W.

    , 2003. Composite electrodes, composed of a mixture of electronically and ionically conducting materials and electronic conductivities of Nafion/ carbon composites. Shibuya et al.1 used an interdigitated arrayTheoretical Analysis for Obtaining Physical Properties of Composite Electrodes Parthasarathy M

  12. Treatment of biomass to obtain a target chemical

    DOE Patents [OSTI]

    Dunson, Jr., James B. (Newark, DE); Tucker, III, Melvin P. (Lakewood, CO); Elander, Richard T. (Evergreen, CO); Hennessey, Susan Marie (Avondale, PA)

    2010-08-24T23:59:59.000Z

    Target chemicals were produced using biocatalysts that are able to ferment sugars derived from treated biomass. Sugars were obtained by pretreating biomass under conditions of high solids and low ammonia concentration, followed by saccharification.

  13. Terra-Gen Powers Coso Geothermal Facility Obtains Critical Federal...

    Open Energy Info (EERE)

    Obtains Critical Federal Permit to Increase Its Renewable Energy Generation Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Terra-Gen Powers Coso...

  14. Predicting cutability of lamb carcasses from easily obtainable carcass measurements

    E-Print Network [OSTI]

    Oliver, William McCoy

    1967-01-01T23:59:59.000Z

    . One of the purposes of this study was to determine which of several measures of carcass cutability could be estimated from easily obtainable weights and measures. The measures of cutability considered in the study may be described as follows: a...

  15. Next Steps for the FCEV Learning Demonstration Project (Presentation)

    SciTech Connect (OSTI)

    Wipke, K.; Sprik, S.; Kurtz, J.; Ramsden, T.; Ainscough, C.; Saur, G.

    2011-02-01T23:59:59.000Z

    This presentation summarizes project goals; vehicle and H2 station deployment status, critical performance compared to targets; highlights of latest vehicle and infrastructure analysis results and progress; learning demo next steps; highlights of partner activities and summary.

  16. NextSTEPS White Paper: Three Routes Forward for Biofuels

    E-Print Network [OSTI]

    California at Davis, University of

    NextSTEPS White Paper: Three Routes Forward for Biofuels: Incremental, Transitional, and Leapfrog NOT CITE #12;Three Routes Forward for Biofuels: Incremental, Transitional, and Leapfrog 2 Contents ......................................................................................................................................12 1.a. The Need for Low Carbon Biofuels

  17. Council on Environmental Quality - Steps to Modernize and Reinvigorate...

    Open Energy Info (EERE)

    to: navigation, search OpenEI Reference LibraryAdd to library Report: Council on Environmental Quality - Steps to Modernize and Reinvigorate NEPA Abstract This page links to the...

  18. Treading Lightly Steps Toward Reducing Our Carbon Footprint

    E-Print Network [OSTI]

    Wong, Pak Kin

    Treading Lightly Steps Toward Reducing Our Carbon Footprint This is one section of The University reducing the UA's carbon footprint. The Facilities Management recycling and waste department supports long

  19. Step 9: Assess Your Progress | Department of Energy

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

    Sample Phone Survey for Drop-Outs << Previous: Driving Demand Step 8 Portland Evaluates Waves of Success In July 2009, Clean Energy Works Oregon (CEWO) launched a pilot program in...

  20. DOE Takes Next Steps to Expand Strategic Petroleum Reserve to...

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

    to Expand Strategic Petroleum Reserve to One Billion Barrels DOE Takes Next Steps to Expand Strategic Petroleum Reserve to One Billion Barrels December 8, 2006 - 9:34am Addthis...

  1. Ion implanted step recovery diodes - influence of material parameter variations

    E-Print Network [OSTI]

    Mosman, Thomas Michael

    2012-06-07T23:59:59.000Z

    ION IMPLANTED STEP RECOVERY DIODES ? INFLUENCE OF MATERIAL PARAMETER VARIATIONS A Thesis by THOMAS MICHAEL MOSMAN Submitted to the Craduate College of Texas ARM University in partial fulfillment of the requirement for the degree of MASTER... OF SCIENCE December 1974 Major Subject: Electrical Engineering ION IMPLANTED STEP RECOVERY DIODES ? INFLUENCE OF MATERIAL PARAMETER VARIATIONS A Thesis by THOMAS MICHAEL MOSMAN Approved as to style and content by: (Chairman of Committee) (Head f...

  2. Brain Mapping Using Topology Graphs Obtained by Surface Segmentation

    E-Print Network [OSTI]

    Linsen, Lars

    Brain Mapping Using Topology Graphs Obtained by Surface Segmentation Fabien Vivodtzev1 , Lars@ucdavis.edu Summary. Brain mapping is a technique used to alleviate the tedious and time- consuming process of annotating brains by mapping existing annotations from brain atlases to individual brains. We introduce

  3. INSTRUCTIONS FOR OBTAINING CENSUS DATA FROM E-STAT

    E-Print Network [OSTI]

    Haykin, Simon

    Titlelink to connect to E-Stat. You may be asked to enter a user ID and password (depending on where you are). Just1 INSTRUCTIONS FOR OBTAINING CENSUS DATA FROM E-STAT Go to the Library homepage http://library.mcmaster.ca Click on the FIND ARTICLES tab. Click on the letter E and scroll down to find E-Stat. Clickonthe

  4. Damping filter method for obtaining spatially localized solutions

    E-Print Network [OSTI]

    Toshiki Teramura; Sadayoshi Toh

    2014-04-30T23:59:59.000Z

    Spatially localized structures are key components of turbulence and other spatio-temporally chaotic systems. From a dynamical systems viewpoint, it is desirable to obtain corresponding exact solutions, though their existence is not guaranteed. A damping filter method is introduced to obtain variously localized solutions, and adopted into two typical cases. This method introduces a spatially selective damping effect to make a good guess at the exact solution, and we can obtain an exact solution through a continuation with the damping amplitude. First target is a steady solution to Swift-Hohenberg equation, which is a representative of bi-stable systems in which localized solutions coexist, and a model for span-wisely localized cases. Not only solutions belonging to the well-known snaking branches but also those belonging to an isolated branch known as "isolas" are found with a continuation paths between them in phase space extended with the damping amplitude. This indicates that this spatially selective excitation mechanism has an advantage in searching spatially localized solutions. Second target is a spatially localized traveling-wave solution to Kuramoto-Sivashinsky equation, which is a model for stream-wisely localized cases. Since the spatially selective damping effect breaks Galilean and translational invariances, the propagation velocity cannot be determined uniquely while the damping is active, and a singularity arises when these invariances are recovered. We demonstrate that this singularity can be avoided by imposing a simple condition, and a localized traveling-wave solution is obtained with a specific propagation speed.

  5. OBTAINING EMPLOYMENT AT THE UNIVERSITY OF HAWAI`I

    E-Print Network [OSTI]

    Olsen, Stephen L.

    OBTAINING EMPLOYMENT AT THE UNIVERSITY OF HAWAI`I Employees at the University of Hawai`i fall into one of four distinct categories of employment ­ civil service, faculty, administrative of Campus Security Policy and Campus Crime Statistics Act, annual campus crime statistics for the University

  6. The structure and reactivity of adsorbates on stepped Rh and Pt surfaces investigated by LEED, HREELS, TPD, XPS and STM

    SciTech Connect (OSTI)

    Batteas, J.D. [Univ. of California, Berkeley, CA (United States). Dept. of Chemistry]|[Lawrence Berkeley Lab., CA (United States). Materials Science Div.

    1995-06-01T23:59:59.000Z

    Defects on surfaces such as steps play an important role in surface chemistry. In order to obtain an understanding of the influence of steps in surface chemical reactions, the structure and reactivity of small molecules (O{sub 2}, CO, H{sub 2}S, and C{sub 2}H{sub 4}) on atomically stepped surfaces of RH and Pt have been investigated. The detailed structures of CO and oxygen bonded to the Rh(110) surface were determined. The CO molecules bond near the short bridge sites with the CO molecular axis tilted approximately 24{degree} from the surface normal. Oxygen atoms are bound asymmetrically in the 3-fold fcc hollow-sites to the (111) facets of the steps. The interactions of CO and oxygen on the Rh(311) surface were examined. The reaction of CO with the ordered phases of O shows two distinct reaction channels, a low temperature reaction limited channel (200 K) and a high temperature diffusion limited channel (350 K). Models of the reaction geometry and dynamics are proposed. The thermal decomposition of ethylene was examined on the Rh(311) surface. The stable decomposition species (C{sub 2}H, CH and C{sub 2}) are formed near 300 K, approximately 100 K lower on the stepped Rh(311) than on the flatter Rh(111) surface. The formation of these species at lower temperatures is attributed to the stepped nature of the surface. Finally, in situ STM was used to examine surface structural changes of a stepped Pt(111) crystal under coadsorption of sulfur and CO. This is the first direct evidence for a new mechanism by which a surface covered with an unreactive, strongly chemisorbed overlayer can form new sites, for bonding and reactions to occur, by massive surface restructuring at the step edges. This new surface phenomenon answers some of the puzzles of metal surface catalysis and its implications are described. 278 refs.

  7. New families of superintegrable systems from k-step rational extensions, polynomial algebras and degeneracies

    E-Print Network [OSTI]

    Ian Marquette

    2014-12-01T23:59:59.000Z

    Four new families of two-dimensional quantum superintegrable systems are constructed from k-step extension of the harmonic oscillator and the radial oscillator. Their wavefunctions are related with Hermite and Laguerre exceptional orthogonal polynomials (EOP) of type III. We show that ladder operators obtained from alternative construction based on combinations of supercharges in the Krein-Adler and Darboux Crum ( or state deleting and creating ) approaches can be used to generate a set of integrals of motion and a corresponding polynomial algebra that provides an algebraic derivation of the full spectrum and total number of degeneracies. Such derivation is based on finite dimensional unitary representations (unirreps) and doesn't work for integrals build from standard ladder operators in supersymmetric quantum mechanics (SUSYQM) as they contain singlets isolated from excited states. In this paper, we also rely on a novel approach to obtain the finite dimensional unirreps based on the action of the integrals of motion on the wavefunctions given in terms of these EOP. We compare the results with those obtained from the Daskaloyannis approach and the realizations in terms of deformed oscillator algebras for one of the new families in the case of 1-step extension. This communication is a review of recent works.

  8. Solving the Dirac equation with nonlocal potential by Imaginary Time Step method

    E-Print Network [OSTI]

    Ying Zhang; Haozhao Liang; Jie Meng

    2009-10-21T23:59:59.000Z

    The Imaginary Time Step (ITS) method is applied to solve the Dirac equation with the nonlocal potential in coordinate space by the ITS evolution for the corresponding Schr\\"odinger-like equation for the upper component. It is demonstrated that the ITS evolution can be equivalently performed for the Schr\\"odinger-like equation with or without localization. The latter algorithm is recommended in the application for the reason of simplicity and efficiency. The feasibility and reliability of this algorithm are also illustrated by taking the nucleus $^{16}$O as an example, where the same results as the shooting method for the Dirac equation with localized effective potentials are obtained.

  9. Obtaining and Using USDA Market and Production Reports

    E-Print Network [OSTI]

    Bevers, Stan; Amosson, Stephen H.; Smith, Jackie; O'Brien, Daniel

    2008-10-07T23:59:59.000Z

    Obtaining and Using USDA Market and Production Reports Risk Management E-490 RM2-11.0 09-08 *Professors and Extension Economists?Management, The Texas A&M System. It has been said that ?accurate and timely in- formation is the lubricant... organizations. Public information is commonly available from the United States Department of Agriculture (USDA) and land grant universities. USDA is responsible for collecting and reporting to the public a vast array of information on virtually every...

  10. Obtaining anisotropic velocity data for proper depth seismic imaging

    SciTech Connect (OSTI)

    Egerev, Sergey; Yushin, Victor; Ovchinnikov, Oleg; Dubinsky, Vladimir; Patterson, Doug [Andreyev Acoustics Institute, Moscow, 117036 (Russian Federation); Baker Hughes, Inc, 2001 Rankin Road, Houston, TX, 77073 (United States)

    2012-05-24T23:59:59.000Z

    The paper deals with the problem of obtaining anisotropic velocity data due to continuous acoustic impedance-based measurements while scanning in the axial direction along the walls of the borehole. Diagrams of full conductivity of the piezoceramic transducer were used to derive anisotropy parameters of the rock sample. The measurements are aimed to support accurate depth imaging of seismic data. Understanding these common anisotropy effects is important when interpreting data where it is present.

  11. The MOVE-Step model for article introductions Introductions to academic articles are frequently written according to the MOVE-Step pat-

    E-Print Network [OSTI]

    Kielmann, Thilo

    The MOVE-Step model for article introductions Introductions to academic articles are frequently in academic and research settings., Cambridge, CUP.) Move 1 Establishing a territory Step 1 Claiming Announcing present research Step 2 Announcing principal findings Step 3 Indicating research article structure

  12. Step-coverage simulation for tetraethoxysilane and ozone atmospheric pressure chemical vapor deposition

    SciTech Connect (OSTI)

    Fujino, K. (Semiconductor Process Lab., Toyko (Japan)); Egashira, Y.; Shimogaki, Y.; Komiyama, H. (Univ. of Tokyo, (Japan). Dept. of Chemical Engineering)

    1993-08-01T23:59:59.000Z

    A simulation model for atmospheric pressure (AP) CVD has bee developed using one-dimensional diffusion and mass conservation equations. The model was applied to trench step-coverage of the tetraethoxysilane (TEOS) and O[sub 3] CVD, in which it was not necessary to consider lateral diffusion because of narrow (and deep) trenches. For nondoped silicate glass (NSG), the step-coverage of a 4.5 aspect ratio trench showed a good fit if a sticking probability of 0.0039 was assumed for the 0.6% ozone (in oxygen) deposition and of 0.0026 for the 6% ozone deposition (both 400 C). The reaction rate constant was compared with the diffusion mass-transfer coefficient, and the reaction proved to be limited by diffusion of the reactant, TEOS, which directly participated in the CVD reaction. For the 2 m/o phosphosilicate glass (PSG) step-coverage, which had a slight overhang, the model matched the obtained results well only when an active growth species with a high sticking probability of 1.0 was added to the growth species of nondoped oxide. This analytical simulation method satisfactorily explains the experimental data.

  13. A stepped leader model for lightning including charge distribution in branched channels

    SciTech Connect (OSTI)

    Shi, Wei; Zhang, Li [School of Electrical Engineering, Shandong University, Jinan 250061 (China); Li, Qingmin, E-mail: lqmeee@ncepu.edu.cn [Beijing Key Lab of HV and EMC, North China Electric Power University, Beijing 102206 (China); State Key Lab of Alternate Electrical Power System with Renewable Energy Sources, Beijing 102206 (China)

    2014-09-14T23:59:59.000Z

    The stepped leader process in negative cloud-to-ground lightning plays a vital role in lightning protection analysis. As lightning discharge usually presents significant branched or tortuous channels, the charge distribution along the branched channels and the stochastic feature of stepped leader propagation were investigated in this paper. The charge density along the leader channel and the charge in the leader tip for each lightning branch were approximated by introducing branch correlation coefficients. In combination with geometric characteristics of natural lightning discharge, a stochastic stepped leader propagation model was presented based on the fractal theory. By comparing simulation results with the statistics of natural lightning discharges, it was found that the fractal dimension of lightning trajectory in simulation was in the range of that observed in nature and the calculation results of electric field at ground level were in good agreement with the measurements of a negative flash, which shows the validity of this proposed model. Furthermore, a new equation to estimate the lightning striking distance to flat ground was suggested based on the present model. The striking distance obtained by this new equation is smaller than the value estimated by previous equations, which indicates that the traditional equations may somewhat overestimate the attractive effect of the ground.

  14. How to obtain the National Energy Modeling System (NEMS)

    Reports and Publications (EIA)

    2013-01-01T23:59:59.000Z

    The National Energy Modeling System (NEMS) NEMS is used by the modelers at the U. S. Energy Information Administration (EIA) who understand its structure and programming. NEMS has only been used by a few organizations outside of the EIA, because most people that requested NEMS found out that it was too difficult or rigid to use. NEMS is not typically used for state-level analysis and is poorly suited for application to other countries. However, many do obtain the model simply to use the data in its input files or to examine the source code.

  15. Hybrid nuclear reactor grey rod to obtain required reactivity worth

    DOE Patents [OSTI]

    Miller, John V. (Munhall, PA); Carlson, William R. (Scott Township, Allegheny County, PA); Yarbrough, Michael B. (Hempfield Township, Westmoreland County, PA)

    1991-01-01T23:59:59.000Z

    Hybrid nuclear reactor grey rods are described, wherein geometric combinations of relatively weak neutron absorber materials such as stainless steel, zirconium or INCONEL, and relatively strong neutron absorber materials, such as hafnium, silver-indium cadmium and boron carbide, are used to obtain the reactivity worths required to reach zero boron change load follow. One embodiment includes a grey rod which has combinations of weak and strong neutron absorber pellets in a stainless steel cladding. The respective pellets can be of differing heights. A second embodiment includes a grey rod with a relatively thick stainless steel cladding receiving relatively strong neutron absorber pellets only. A third embodiment includes annular relatively weak netron absorber pellets with a smaller diameter pellet of relatively strong absorber material contained within the aperture of each relatively weak absorber pellet. The fourth embodiment includes pellets made of a homogeneous alloy of hafnium and a relatively weak absorber material, with the percentage of hafnium chosen to obtain the desired reactivity worth.

  16. One-step curing method for manufacture of neutron absorbing plates

    SciTech Connect (OSTI)

    Storm, R.S.

    1980-04-15T23:59:59.000Z

    A one-step curinging articles, such as those of long thin plate form for use in storage racks for spent nuclear fuel, includes curing a mixture of boron carbide particles, phenolic resin in liquid state and phenolic resin in particulate solid form at an elevated temperature to produce a neutron absorbing article containing at least 6% of B10 content from the boron carbide thereof, 60% to 80% of boron carbide particles and 40% to 60% of irreversibly cured phenolic polymer, with the proportion of weight of phenolic resin in liquid state to that of phenolic resin in solid state being within the range of about 1:0.5 to 1:4, the temperature of the cure being in the range of about 130 to 200/sup 0/ C and the cure being effected over a period of about two to twenty hours. Because of the use of solid resin, in particulate form, together with the resin in liquid state, the neutron absorbing articles made include better bonds between the polymer and the boron carbide particles than would be obtainable by using the normally solid resin only and the phenolic polymer content of the article is greater than that which would be obtainable by a one-step cure effected when the curable phenolic resin is all in the liquid state and the mixture is not held in article form under compacting or pressing pressure.

  17. Relationship between gradient and EM steps in latent variable models.

    E-Print Network [OSTI]

    Roweis, Sam

    includes random search, standard gradient­based algorithms, line search methods such as conjugate gradient to to first order method operat­ ing on the gradient of a locally reshaped likelihood function. DirectRelationship between gradient and EM steps in latent variable models. Ruslan Salakhutdinov Sam

  18. Relationship between gradient and EM steps in latent variable models.

    E-Print Network [OSTI]

    Roweis, Sam

    includes random search, standard gradient-based algorithms, line search methods such as conjugate gradient to to first order method operat- ing on the gradient of a locally reshaped likelihood function. DirectRelationship between gradient and EM steps in latent variable models. Ruslan Salakhutdinov Sam

  19. Steps to Developing the New Orleans Strategic Energy Plan (Presentation)

    SciTech Connect (OSTI)

    Brown, E.

    2011-01-01T23:59:59.000Z

    This presentation was given by NREL's Elizabeth Doris (Brown) to the New Orleans City Council in January 2008. NREL was funded by DOE to provide technical assistance to New Orleans after Hurricanes Katrina and Rita. The presentation provides an overview of strategic energy planning, case studies, and suggested next steps for implementing energy efficiency and renewable energy into the city's rebuilding efforts.

  20. Next Steps: Communications Communicate the strategic planning process,

    E-Print Network [OSTI]

    Cui, Yan

    Conduct a Mid-year Review of Progress with implementation Communicate the results of the review to Executive Committee UTHSC-wide 2014 2 #12;Next Steps: Moving Forward Conduct the Annual Strategy Review and Student Affairs Clinical Affairs Research Development and Alumni Affairs Finance and Operations

  1. Recycling Water: one step to making algal biofuels a reality

    E-Print Network [OSTI]

    Fay, Noah

    Recycling Water: one step to making algal biofuels a reality Manuel Vasquez, Juan Sandoval acquisition of solar power, nuclear power, and biofuels to diversify the country's domestic energy profile, the chemical make-up of biofuels allows them to be readily converted into their petroleum counterparts making

  2. Making Time-stepped Applications Tick in the Cloud

    E-Print Network [OSTI]

    Keinan, Alon

    Making Time-stepped Applications Tick in the Cloud Tao Zou, Guozhang Wang, Marcos Vaz Salles · Iterative Graph Processing · Matrix Computation #12;Why Run Scientific Applications in the Cloud? · Elasticity · Cost Saving · Instant Availability 9 Avoid jobs queuing for days #12;What Does Cloud

  3. Degree project in A First Step Toward Green

    E-Print Network [OSTI]

    Maguire Jr., Gerald Q.

    Degree project in A First Step Toward Green Wireline Broadband Second level, 30.0 HEC E R I C S V E at Ericsson AB: Jonas Rosenberg #12;Abstract This project aims to lower the power consumption of broadband the device. The methods that are proposed could in theory be applied to reach the goals of the project

  4. Single-Step Stereolithography of Complex Anatomical Models

    E-Print Network [OSTI]

    Pekkan, Kerem

    Single-Step Stereolithography of Complex Anatomical Models for Optical Flow Measurements Diane de of Technology & Emory University School of Medicine, Room 2119 U.A. Whitaker Building, 313 Ferst Dr., Atlanta demonstrated in literature to be a practical model construction tool for optical flow measurements

  5. Thermonuclear Fusion Energy : Assessment and Next Step Ren Pellat

    E-Print Network [OSTI]

    Thermonuclear Fusion Energy : Assessment and Next Step René Pellat High Commissioner at the French 2000, Rome Abstract Fifty years of thermonuclear fusion work with no insurmountable road blocks have is well advanced through the International Thermonuclear Experimental Reactor (ITER) programme, which has

  6. In Search of Stepping Stones School of Natural Sciences

    E-Print Network [OSTI]

    Hut, Piet

    such a stepping stone. Already famil- iar in science, philosophy, and personal paths of explorations, but under there clearly was room for mysticism. Not that they had it easy: every deep mystic ran the risk to be bran reality, in meditation and prayer and philosophy, in order to get deeper in touch with reality itself

  7. Finite quantum dissipation: the challenge of obtaining specific heat

    E-Print Network [OSTI]

    Hänggi, Peter; Talkner, Peter

    2008-01-01T23:59:59.000Z

    We consider a free particle coupled with finite strength to a bath and investigate the evaluation of its specific heat. A harmonic oscillator bath of Drude type with cutoff frequency omega_D is employed to model an ohmic friction force with dissipation strength gamma. Two scenarios for obtaining specific heat are presented. The first one uses the measurement of the kinetic energy of the free particle while the second one is based on the reduced partition function. Both descriptions yield results which are consistent with the Third Law of thermodynamics. Nevertheless, the two methods produce different results that disagree even in their leading quantum corrections at high temperatures. We also consider the regime where the cutoff frequency is smaller than the friction strength, i.e. omega_D1.

  8. Energy Department Takes Major Steps to Increase U.S. Energy Productivi...

    Office of Environmental Management (EM)

    Energy Department Takes Major Steps to Increase U.S. Energy Productivity and Manufacturing Energy Department Takes Major Steps to Increase U.S. Energy Productivity and...

  9. Finite quantum dissipation: the challenge of obtaining specific heat

    E-Print Network [OSTI]

    Peter Hänggi; Gert-Ludwig Ingold; Peter Talkner

    2008-05-26T23:59:59.000Z

    We consider a free particle coupled with finite strength to a bath and investigate the evaluation of its specific heat. A harmonic oscillator bath of Drude type with cutoff frequency omega_D is employed to model an ohmic friction force with dissipation strength gamma. Two scenarios for obtaining specific heat are presented. The first one uses the measurement of the kinetic energy of the free particle while the second one is based on the reduced partition function. Both descriptions yield results which are consistent with the Third Law of thermodynamics. Nevertheless, the two methods produce different results that disagree even in their leading quantum corrections at high temperatures. We also consider the regime where the cutoff frequency is smaller than the friction strength, i.e. omega_Dheat based on the thermodynamic prescription becomes negative. This anomaly is rooted in an ill-defined density of states of the damped free particle which assumes unphysical negative values when gamma/omega_D>1.

  10. Noise correction of turbulent spectra obtained from Acoustic Doppler Velocimeters

    SciTech Connect (OSTI)

    Durgesh, Vibhav; Thomson, Jim; Richmond, Marshall C.; Polagye, Brian

    2014-03-02T23:59:59.000Z

    Accurately estimated auto-spectral density functions are essential for characterization of turbulent flows, and they also have applications in computational fluid dynamics modeling, site and inflow characterization for hydrokinetic turbines, and inflow turbulence generation. The Acoustic Doppler Velocimeter (ADV) provides single-point temporally resolved data, that are used to characterize turbulent flows in rivers, seas, and oceans. However, ADV data are susceptible to contamination from various sources, including instrument noise, which is the intrinsic limit to the accuracy of acoustic velocity measurements. Due to the presence of instrument noise, the spectra obtained are altered at high frequencies. The focus of this study is to develop a robust and effective method for accurately estimating auto-spectral density functions from ADV data by reducing or removing the spectral contribution derived from instrument noise. For this purpose, the “Noise Auto-Correlation” (NAC) approach was developed, which exploits the correlation properties of instrument noise to identify and remove its contribution from spectra. The spectra estimated using the NAC approach exhibit increased fidelity and a slope of -5/3 in the inertial range, which is typically observed for turbulent flows. Finally, this study also compares the effectiveness of low-pass Gaussian filters in removing instrument noise with that of the NAC approach. For the data used in this study, both the NAC and Gaussian filter approaches are observed to be capable of removing instrument noise at higher frequencies from the spectra. However, the NAC results are closer to the expected frequency power of -5/3 in the inertial sub-range.

  11. K:\\Career Development Center\\Co-op\\co-op handbook\\co-op handbook step by step guide 02/06/2013 Cooperative Education Handbook

    E-Print Network [OSTI]

    Boyce, Richard L.

    /06/2013 Cooperative Education Handbook The step-by-step guide for students What is cooperative education? Cooperative-level, elective credit. The grading is pass/fail and students pay tuition for this credit, similar to any other

  12. Mitigating Pollution Concerns through Process Integration Technology Steps

    E-Print Network [OSTI]

    Tripathi, P.; Shukla, D.; Smith, S.

    MITIGATING POLLUTION CONCERNS THROUGH PROCESS INTEGRATION TECHNOLOGY STEPS Paul Tripathi, D.Shukla TENSA Services, Houston, Tx and Steve Smith Duke Power, Charlotte, NC Abstract: With increasing concern to reduce the emission of SOx... of the studies to illustrate succesahow sful partnership can work. 1.0 Introduction: Over the past decade, there is an increasing concern for reducing environmental pollution. Some of the issues being addressed related to this topic...

  13. Steps to Commercialization: Nickel Metal Hydride Batteries | Department of

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy UsageAUDITVehicles »ExchangeDepartmentResolveFuture |Energy Steps to

  14. Single-Step Implementation of Universal Quantum Gates

    SciTech Connect (OSTI)

    Grigorenko, I.A.; Khveshchenko, D.V. [Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27599 (United States)

    2005-09-09T23:59:59.000Z

    We construct optimized implementations of the controlled-NOT and other universal two-qubit gates that, unlike many of the previously proposed protocols, are carried out in a single step. The new protocols require tunable interqubit couplings but, in return, show a significant improvement in the quality of gate operations. We make specific predictions for coupled Josephson junction qubits and compare them with the results of recent experiments.

  15. Hydrogenation of O and OH on Pt(111): A comparison between the reaction rates of the first and the second hydrogen addition steps

    SciTech Connect (OSTI)

    Näslund, L.-Å., E-mail: lars-ake.naslund@liu.se [Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025 (United States)

    2014-03-14T23:59:59.000Z

    The formation of water through hydrogenation of oxygen on platinum occurs at a surprisingly low reaction rate. The reaction rate limited process for this catalytic reaction is, however, yet to be settled. In the present work, the reaction rates of the first and the second hydrogen addition steps are compared when hydrogen is obtained through intense synchrotron radiation that induces proton production in a water overlayer on top of the adsorbed oxygen species. A substantial amount of the produced hydrogen diffuses to the platinum surface and promotes water formation at the two starting conditions O/Pt(111) and (H{sub 2}O+OH)/Pt(111). The comparison shows no significant difference in the reaction rate between the first and the second hydrogen addition steps, which indicates that the rate determining process of the water formation from oxygen on Pt(111) is neither the first nor the second H addition step or, alternatively, that both H addition steps exert rate control.

  16. Recent Steps Towards a Controlled Thermonuclear Fusion Reactor with Results from the JET Tokamak Device

    E-Print Network [OSTI]

    Recent Steps Towards a Controlled Thermonuclear Fusion Reactor with Results from the JET Tokamak Device

  17. Elastic displacements and step interactions on metallic surfaces: GIXD and ab initio study of Au(332)

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    -range displacement fields generated by atomic relaxations at the steps.10 It is generally assumed that the most authors have come up with elastic models to describe step-step interactions.10,11,12,13,14 In generalElastic displacements and step interactions on metallic surfaces: GIXD and ab initio study of Au

  18. The Trotter Step Size Required for Accurate Quantum Simulation of Quantum Chemistry

    E-Print Network [OSTI]

    David Poulin; M. B. Hastings; Dave Wecker; Nathan Wiebe; Andrew C. Doherty; Matthias Troyer

    2014-06-19T23:59:59.000Z

    The simulation of molecules is a widely anticipated application of quantum computers. However, recent studies \\cite{WBCH13a,HWBT14a} have cast a shadow on this hope by revealing that the complexity in gate count of such simulations increases with the number of spin orbitals $N$ as $N^8$, which becomes prohibitive even for molecules of modest size $N\\sim 100$. This study was partly based on a scaling analysis of the Trotter step required for an ensemble of random artificial molecules. Here, we revisit this analysis and find instead that the scaling is closer to $N^6$ in worst case for real model molecules we have studied, indicating that the random ensemble fails to accurately capture the statistical properties of real-world molecules. Actual scaling may be significantly better than this due to averaging effects. We then present an alternative simulation scheme and show that it can sometimes outperform existing schemes, but that this possibility depends crucially on the details of the simulated molecule. We obtain further improvements using a version of the coalescing scheme of \\cite{WBCH13a}; this scheme is based on using different Trotter steps for different terms. The method we use to bound the complexity of simulating a given molecule is efficient, in contrast to the approach of \\cite{WBCH13a,HWBT14a} which relied on exponentially costly classical exact simulation.

  19. Step by Step Instructions

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up from the GridwiseSiteDepartment ofCreatingCell ResearchStent Technology Saves

  20. Time Step Size Limitation Introduced by the BSSN Gamma Driver

    E-Print Network [OSTI]

    Erik Schnetter

    2010-06-17T23:59:59.000Z

    Many mesh refinement simulations currently performed in numerical relativity counteract instabilities near the outer boundary of the simulation domain either by changes to the mesh refinement scheme or by changes to the gauge condition. We point out that the BSSN Gamma Driver gauge condition introduces a time step size limitation in a similar manner as a CFL condition, but which is independent of the spatial resolution. We give a didactic explanation of this issue, show why especially mesh refinement simulations suffer from it, and point to a simple remedy.

  1. Evaluation of the stepped blade using the pressuremeter

    E-Print Network [OSTI]

    Gan, Kuat Chin

    1987-01-01T23:59:59.000Z

    contribute to the fact that the soil pressure versus blade thickness curve exhibits a peak in certain soils Steppe d blade tests, preboring pressur?ineter tests and self-boring pr&ssiirem?- ter tests w& re performed at two overconsolidated clay sites arid... two san&i sites In th?clay, the stepped blade values of It, w& re on the av& rage 3 to 4 tim?s larger than tlie prebonng pressuremeter and the self-boring pressuremeter values ol' Ir In the sand, the st& pped blade values of Iv?compared well...

  2. Prabhat Steps In as DAS Group LeadPage

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassive Solar Home Design PassivePostdoctoralKanareykin,U D GPoweringofPrabhat Steps

  3. ARM - Steps for Submitting Field Campaign Data and Metadata

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc Documentation RUC :ProductsSCM Forcing DataScienceSteering Committee Related LinksCampaignsSteps

  4. An Important Step Forward for CCUS | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergy Cooperation |South42.2 (April 2012) 1 Documentation andEnergy| Department1An Important Step

  5. Our Next Two Steps for Fukushima Daiichi Muon Tomography

    SciTech Connect (OSTI)

    Miyadera, Haruo [Los Alamos National Laboratory

    2012-04-11T23:59:59.000Z

    After the vast disasters caused by the great earthquake and tsunami in eastern Japan, we proposed applying our Muon Tomography (MT) technique to help and improve the emergency situation at Fukushima Daiichi using cosmic-ray muons. A reactor-tomography team was formed at LANL which was supported by the Laboratory as a response to a request by the former Japanese Prime Minister, Naoto Kan. Our goal is to help the Japanese people and support remediation of the reactors. At LANL, we have carried out a proof-of-principle technical demonstration and simulation studies that established the feasibility of MT to image a reactor core. This proposal covers the next two critical steps for Fukushima Daiichi Muon Imaging: (1) undertake case study mock-up experiments of Fukushima Daiichi, and (2) system optimization. We requested funding to the US and Japanese government to assess damage of reactors at Fukushima Daiichi. The two steps will bring our project to the 'ready-to-go' level.

  6. Step 6: Make Your Workforce True Partners | Department of Energy

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

    not part of the energy upgrade program to obtain feedback on how the program is doing. An image of two crossed tools, a screwdriver and a wrench. The Better Buildings Neighborhood...

  7. One-step method for the production of nanofluids

    DOE Patents [OSTI]

    Kostic, Milivoje (Chicago, IL); Golubovic, Mihajlo (Chicago, IL); Hull, John R. (Downers Grove, IL); Choi, Stephen U. S. (Napersville, IL)

    2010-05-18T23:59:59.000Z

    A one step method and system for producing nanofluids by a particle-source evaporation and deposition of the evaporant into a base fluid. The base fluid such (i.e. ethylene glycol) is placed in a rotating cylindrical drum having an adjustable heater-boat-evaporator and heat exchanger-cooler apparatus. As the drum rotates, a thin liquid layer is formed on the inside surface of the drum. A heater-boat-evaporator having an evaporant material (particle-source) placed within its boat evaporator is adjustably positioned near a portion of the rotating thin liquid layer, the evaporant material being heated thereby evaporating a portion of the evaporant material, the evaporated material absorbed by the liquid film to form nanofluid.

  8. One-step method for the production of nanofluids

    DOE Patents [OSTI]

    Kostic, Milivoje (Sycamore, IL); Golubovic, Mihajlo (Chicago, IL); Hull, John (Downers Grove, IL); Choi, Stephen U. S. (Naperville, IL)

    2011-08-16T23:59:59.000Z

    A one step method and system for producing nanofluids by a nanoparticle-source evaporation and deposition of the evaporant into a base fluid. The base fluid such oil or ethylene glycol is placed in a rotating cylindrical drum having an adjustable heater-boat-evaporator and heat exchanger-cooler apparatus. As the drum rotates, a thin liquid layer is formed on the inside surface of the drum. An insulated heater-boat-evaporator having an evaporant material (nanoparticle-source) placed within its boat evaporator is adjustably positioned near a portion of the rotating thin liquid layer, the evaporant material being heated thereby evaporating a portion of the evaporant material and forming nanoparticles, the nanoparticles absorbed by the liquid film to form nanofluid.

  9. Design of a high speed planing hull with a cambered step and surface piercing hydrofoils

    E-Print Network [OSTI]

    Faison, Leon Alexander

    2014-01-01T23:59:59.000Z

    Design of a high speed planing hull is analyzed by implementing a cambered step and stem, surface piercing hydrofoils, commonly known as a Dynaplane hull. This configuration combines the drag reduction benefits of a stepped ...

  10. U.S. Deputy Energy Secretary Poneman Announces New Steps to Support...

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

    U.S. Deputy Energy Secretary Poneman Announces New Steps to Support Clean Energy Small Businesses U.S. Deputy Energy Secretary Poneman Announces New Steps to Support Clean Energy...

  11. Step-Stress Accelerated Degradation Testing (SSADT) for Photovoltaic (PV) Devices and Cells (Presentation)

    SciTech Connect (OSTI)

    Lee, J.; Elmore, R.; Suh, C.; Jones, W.

    2010-10-01T23:59:59.000Z

    Presentation on step-stress accelerated degradation testing (SSADT) for photovoltaics (PV). Developed are a step-stress degradation test (SSADT) for PV reliability tests and a lifetime prediction model for PV products.

  12. April 2 Webinar to Introduce Five-Step Tribal Energy Project...

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

    Webinar to Introduce Five-Step Tribal Energy Project Development Process April 2 Webinar to Introduce Five-Step Tribal Energy Project Development Process March 26, 2014 - 7:12pm...

  13. A new step size rule in Yan et al.'s self-adaptive projection method

    E-Print Network [OSTI]

    Gao Bin

    2015-01-29T23:59:59.000Z

    Jan 29, 2015 ... Abstract: In this paper, we propose a new step size rule to accelerate Yan et al.'s self-adaptive projection method. Under the new step size ...

  14. A Detailed Analysis of the Nonlinear Dynamics of the Electric Step Motor J. Reiss, F. Alin*

    E-Print Network [OSTI]

    Reiss, Josh

    A Detailed Analysis of the Nonlinear Dynamics of the Electric Step Motor J. Reiss, F. Alin* , M.robert@univ-reims.fr Abstract The electric step motor is an electromechanical device which converts electrical pulses of stationarity in the system. We show that the electric step motor may function as a low-dimensional chaotic

  15. Error Bounds for the Large Time Step Glimm Scheme Applied to Scalar Conservation Laws 1

    E-Print Network [OSTI]

    for the Glimm scheme under the restriction of Courant numbers up to 1=2. 1. Introduction The large time step solution of (1) generated from the LTS Glimm scheme, #1;x the spatial mesh length and #1;t the time stepError Bounds for the Large Time Step Glimm Scheme Applied to Scalar Conservation Laws 1 Jinyang

  16. Grants.gov eRPM Steps 1. PAF worksheet Grants.gov submissions

    E-Print Network [OSTI]

    Shyy, Wei

    ­ Grants.gov submissions 3 Look up FOA number to tie Grants.gov forms to PAF #12;Step 1 - PAF worksheet (PDFs) must be in a specific order. #12;Step 6 ­ Generate PDF 21 Click Generate PDF Version Status = Valid for Submission #12;Step 6 ­ Generate PDF 22 Select the box to include attachments & click OK. #12

  17. Indexed Step-Wise Semi-Naive Evaluation for Recursive Queries

    E-Print Network [OSTI]

    Wang, Ke

    - cation of the step-wise semi-naive evaluation based on the semi-naive build-up of hash tables is proposed for relations generated at intermediate steps of rule r- ings, such as the result of a 1 b in the above exampleIndexed Step-Wise Semi-Naive Evaluation for Recursive Queries Ke Wang Department of Information

  18. Movement of oxygen from the atmosphere to the mitochondria occurs via several convective and diffusive steps

    E-Print Network [OSTI]

    Bennett, Albert F.

    4111 Movement of oxygen from the atmosphere to the mitochondria occurs via several convective and diffusive steps (Weibel et al., 1981). In mammals, maximal rate of oxygen consumption (VOmax) is not limited by any one step of the oxygen cascade; rather limitations to VOmax are distributed across all steps

  19. StepGreen.org: Increasing energy saving behaviors via social networks Jennifer Mankoff1

    E-Print Network [OSTI]

    Mankoff, Jennifer

    StepGreen.org: Increasing energy saving behaviors via social networks Jennifer Mankoff1 , Susan R and evaluation of StepGreen.org, a site intended to promote energy-saving behaviors. We present the results of StepGreen.org (Figure 1), a site intended to motivate people to make energy-reducing changes

  20. U-163: PHP Command Parameter Bug Lets Remote Users Obtain Potentially...

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

    63: PHP Command Parameter Bug Lets Remote Users Obtain Potentially Sensitive Information and Execute Arbitrary Code U-163: PHP Command Parameter Bug Lets Remote Users Obtain...

  1. E-Print Network 3.0 - acid isomers obtained Sample Search Results

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

    isomers obtained Search Powered by Explorit Topic List Advanced Search Sample search results for: acid isomers obtained Page: << < 1 2 3 4 5 > >> 1 Refolding of Amphioxus...

  2. Diagnostic and Prognostic Models for Generator Step-Up Transformers

    SciTech Connect (OSTI)

    Vivek Agarwal; Nancy J. Lybeck; Binh T. Pham

    2014-09-01T23:59:59.000Z

    In 2014, the online monitoring (OLM) of active components project under the Light Water Reactor Sustainability program at Idaho National Laboratory (INL) focused on diagnostic and prognostic capabilities for generator step-up transformers. INL worked with subject matter experts from the Electric Power Research Institute (EPRI) to augment and revise the GSU fault signatures previously implemented in the Electric Power Research Institute’s (EPRI’s) Fleet-Wide Prognostic and Health Management (FW-PHM) Suite software. Two prognostic models were identified and implemented for GSUs in the FW-PHM Suite software. INL and EPRI demonstrated the use of prognostic capabilities for GSUs. The complete set of fault signatures developed for GSUs in the Asset Fault Signature Database of the FW-PHM Suite for GSUs is presented in this report. Two prognostic models are described for paper insulation: the Chendong model for degree of polymerization, and an IEEE model that uses a loading profile to calculates life consumption based on hot spot winding temperatures. Both models are life consumption models, which are examples of type II prognostic models. Use of the models in the FW-PHM Suite was successfully demonstrated at the 2014 August Utility Working Group Meeting, Idaho Falls, Idaho, to representatives from different utilities, EPRI, and the Halden Research Project.

  3. Step-Stress Accelerated Degradation Testing for Solar Reflectors: Preprint

    SciTech Connect (OSTI)

    Jones, W.; Elmore, R.; Lee, J.; Kennedy, C.

    2011-09-01T23:59:59.000Z

    To meet the challenge to reduce the cost of electricity generated with concentrating solar power (CSP) new low-cost reflector materials are being developed including metalized polymer reflectors and must be tested and validated against appropriate failure mechanisms. We explore the application of testing methods and statistical inference techniques for quantifying estimates and improving lifetimes of concentrating solar power (CSP) reflectors associated with failure mechanisms initiated by exposure to the ultraviolet (UV) part of the solar spectrum. In general, a suite of durability and reliability tests are available for testing a variety of failure mechanisms where the results of a set are required to understand overall lifetime of a CSP reflector. We will focus on the use of the Ultra-Accelerated Weathering System (UAWS) as a testing device for assessing various degradation patterns attributable to accelerated UV exposure. Depending on number of samples, test conditions, degradation and failure patterns, test results may be used to derive insight into failure mechanisms, associated physical parameters, lifetimes and uncertainties. In the most complicated case warranting advanced planning and statistical inference, step-stress accelerated degradation (SSADT) methods may be applied.

  4. Jatropha Curcas Kernel Meals Obtained From Four Different Agro-Climatic Areas of Ghana:

    E-Print Network [OSTI]

    S. K. Chikpah; B. Demuyakor

    ) concentration of Jatropha curcas kernel meals (KM) obtained from four different agro-climatic conditions. The

  5. Investigation of various ways of obtaining output waveforms of CMOS digital circuits by explicit methods

    E-Print Network [OSTI]

    Ong, Lian Wah

    1989-01-01T23:59:59.000Z

    Local and Total Error. 18 5. 1 Full Adder, FADD. 30 5. 2 Waveform Comparison with Spice: JKFP. 5. 3 Waveform Comparison with Spice: FADD. 32 5. 4 Effect of AV on Window Method. 5. 5 4-Bits Counter, CB41. 5. 6 4-Bits Counter, CM14. 34 38 5. 7 4... already know its input wave (ie. the output waveform of S4). We can then adjust the step size according to this input wave. The step size is varied as follows: (1) Initially, the whole circuit is simulated based on a specified AV (eg 0. 5V...

  6. Analysis on burnup step effect for evaluating reactor criticality and fuel breeding ratio

    SciTech Connect (OSTI)

    Saputra, Geby; Purnama, Aditya Rizki; Permana, Sidik [Nuclear Physics and Biophysics Research Division, Physics Department, Institut Teknologi Bandung (Indonesia); Suzuki, Mitsutoshi [Department of Science and Technology for Nuclear Material Management (STNM), Japan Atomic Energy Agency (JAEA) (Japan)

    2014-09-30T23:59:59.000Z

    Criticality condition of the reactors is one of the important factors for evaluating reactor operation and nuclear fuel breeding ratio is another factor to show nuclear fuel sustainability. This study analyzes the effect of burnup steps and cycle operation step for evaluating the criticality condition of the reactor as well as the performance of nuclear fuel breeding or breeding ratio (BR). Burnup step is performed based on a day step analysis which is varied from 10 days up to 800 days and for cycle operation from 1 cycle up to 8 cycles reactor operations. In addition, calculation efficiency based on the variation of computer processors to run the analysis in term of time (time efficiency in the calculation) have been also investigated. Optimization method for reactor design analysis which is used a large fast breeder reactor type as a reference case was performed by adopting an established reactor design code of JOINT-FR. The results show a criticality condition becomes higher for smaller burnup step (day) and for breeding ratio becomes less for smaller burnup step (day). Some nuclides contribute to make better criticality when smaller burnup step due to individul nuclide half-live. Calculation time for different burnup step shows a correlation with the time consuming requirement for more details step calculation, although the consuming time is not directly equivalent with the how many time the burnup time step is divided.

  7. Single-Step Ironmaking from Ore to Improve Energy Efficiency

    SciTech Connect (OSTI)

    S.K. Kawatra; B. Anamerie; T.C. Eisele

    2005-10-01T23:59:59.000Z

    The pig iron nugget process was developed as an alternative to the traditional blast furnace process by Kobe Steel. The process aimed to produce pig iron nuggets, which have similar chemical and physical properties to blast furnace pig iron, in a single step. The pig iron nugget process utilizes coal instead of coke and self reducing and fluxing dried green balls instead of pellets and sinters. In this process the environmental emissions caused by coke and sinter production, and energy lost between pellet induration (heat hardening) and transportation to the blast furnace can be eliminated. The objectives of this research were to (1) produce pig iron nuggets in the laboratory, (2) characterize the pig iron nugget produced and compare them with blast furnace pig iron, (3) investigate the furnace temperature and residence time effects on the pig iron nugget production, and (4) optimize the operational furnace temperatures and residence times. The experiments involved heat treatment of self reducing and fluxing dried green balls at various furnace temperatures and residence times. Three chemically and physically different products were produced after the compete reduction of iron oxides to iron depending on the operational furnace temperatures and/or residence times. These products were direct reduced iron (DRI), transition direct reduced iron (TDRI), and pig iron nuggets. The increase in the carbon content of the system as a function of furnace temperature and/or residence time dictated the formation of these products. The direct reduced iron, transition direct reduced iron, and pig iron nuggets produced were analyzed for their chemical composition, degree of metallization, apparent density, microstructure and microhardness. In addition, the change in the carbon content of the system with the changing furnace temperature and/or residence time was detected by optical microscopy and Microhardness measurements. The sufficient carbon dissolution required for the production of pig iron nuggets was determined. It was determined that pig iron nuggets produced had a high apparent density (6.7-7.2 gr/cm3), highly metallized, slag free structure, high iron content (95-97%), high microhardness values (> 325 HVN) and microstructure similar to white cast iron. These properties made them a competitive alternative to blast furnace pig iron.

  8. Reduction of NOx in Synthetic Diesel Exhaust via Two-Step Plasma...

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

    Citation: Tonkyn RG, SE Barlow, and J Hoard.2003."Reduction of NOx in Synthetic Diesel Exhaust via Two-Step Plasma-Catalysis Treatment."Applied Catalysis. B,...

  9. In Situ One-Step Synthesis of Hierarchical Nitrogen-Doped Porous...

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

    Synthesis of Hierarchical Nitrogen-Doped Porous Carbon for High Performance Supercapacitors. In Situ One-Step Synthesis of Hierarchical Nitrogen-Doped Porous Carbon for High...

  10. Modeling Metal Fatigue As a Key Step in PV Module Life Time Prediction (Presentation)

    SciTech Connect (OSTI)

    Bosco, N.

    2012-02-01T23:59:59.000Z

    This presentation covers modeling metal fatigue as a key step in photovoltaic (PV) module lifetime predictions. Described are time-dependent and time-independent case studies.

  11. Domestic production of medical isotope Mo-99 moves a step closer

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

    Mo-99 Domestic production of medical isotope Mo-99 moves a step closer Irradiated uranium fuel has been recycled and reused for molybdenum-99 (Mo-99) production, with...

  12. A new step size rule in Yan et al.'s self-adaptive projection method

    E-Print Network [OSTI]

    2015-01-29T23:59:59.000Z

    Jan 29, 2015 ... ... which can be viewed as a combination of Li and Yuan's manipulation idea of step size and descending direction presented by Yan et al. [14].

  13. Policy Flash 2015-11 Implementation of Steps Outlined in OFPP...

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

    Policy Flash 2015-11 Implementation of Steps Outlined in OFPP Memorandum dated July 10, 2014, "Making Better Use of Contractor Performance Information" Policy Flash 2015-11...

  14. How to Obtain Authorization to Import and/or Export Natural Gas...

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

    How to Obtain Authorization to Import andor Export Natural Gas and LNG How to Obtain Authorization to Import andor Export Natural Gas and LNG LNG Exports | Long Terms | Blanket...

  15. U-017: HP MFP Digital Sending Software Lets Local Users Obtain Potentially Sensitive Information

    Broader source: Energy.gov [DOE]

    A vulnerability was reported in HP MFP Digital Sending Software. A local user can obtain potentially sensitive information.

  16. IMPROVEMENTS TO THE TIME STEPPING ALGORITHM OF RELAP5-3D

    SciTech Connect (OSTI)

    Cumberland, R.; Mesina, G.

    2009-01-01T23:59:59.000Z

    The RELAP5-3D time step method is used to perform thermo-hydraulic and neutronic simulations of nuclear reactors and other devices. It discretizes time and space by numerically solving several differential equations. Previously, time step size was controlled by halving or doubling the size of a previous time step. This process caused the code to run slower than it potentially could. In this research project, the RELAP5-3D time step method was modifi ed to allow a new method of changing time steps to improve execution speed and to control error. The new RELAP5-3D time step method being studied involves making the time step proportional to the material courant limit (MCL), while insuring that the time step does not increase by more than a factor of two between advancements. As before, if a step fails or mass error is excessive, the time step is cut in half. To examine performance of the new method, a measure of run time and a measure of error were plotted against a changing MCL proportionality constant (m) in seven test cases. The removal of the upper time step limit produced a small increase in error, but a large decrease in execution time. The best value of m was found to be 0.9. The new algorithm is capable of producing a signifi cant increase in execution speed, with a relatively small increase in mass error. The improvements made are now under consideration for inclusion as a special option in the RELAP5-3D production code.

  17. Task analysis: a detailed example of stepping up from JSA

    SciTech Connect (OSTI)

    Banks, W.W.; Paramore, B.A.; Buys, J.R.

    1984-10-01T23:59:59.000Z

    This paper discusses a pilot task analysis of operations in a proposed facility for the cutting and packaging of radioactively contaminated gloveboxes, for long-term storage or burial. The objective was to demonstrate how task analysis may be used as a tool for planning and risk management. Two specific products were generated - preliminary operating procedures and training requirements. The task data base, procedures list and training requirements developed were intended as first order categorizations. The analysis was limited to tasks that will be performed within the boundaries of the operational facility and the associated load-out area. The analysis documents tasks to be performed by D and D (Decontamination and Decommissioning) Workers. However, the analysis included all tasks identified as an integral part of glovebox processing within the facility. Thus tasks involving Radiation Protection Technicians (RPTs) are included. Based on hazard assessments, it is planned that at least two RPTs will be assigned full-time to the facility, so they may be considered part of its crew. Similarly, supervisory/administrative tasks are included where they were determined to be directly part of process sequences, such as obtaining appropriate certification. 11 tables.

  18. Implementing multi-step chemical kinetics models in opposed-flow flame spread over cellulose and a comparison to single-step chemistry

    SciTech Connect (OSTI)

    Wolverton, M.K.; Altenkirch, R.A.; Tang, L. [Mississippi State Univ., MS (United States)] [Mississippi State Univ., MS (United States)

    1999-07-01T23:59:59.000Z

    Multi-step, gas-phase chemical kinetics are introduced into flame spread modeling efforts. An unsteady multi-step, gas-phase kinetics model both with and without steady-state species assumptions, and including nonunit Lewis number, is compared with a model including a single, finite-rate gas-phase reaction, which has been the usual approach in flame spread modeling. Laminar diffusion flames over a thin fuel in an opposing O{sub 2}/N{sub 2} flow are considered with the solution in two-dimensional space of momentum, energy, and 12 gas-phase species. Results for the multi-step models show detailed flame structure in terms of species and heat release distributions throughout the flame and the role of chemical kinetics as a controlling mechanism in flame spread. Of particular interest is the potential of multi-step chemical kinetics in solutions at near-extinction limit conditions. While the incorporation of nonunit Le alone affords more detailed species transport, in high opposing flows it was found to give only minor structural differences form the single-step unit Le model. The multi-step chemistry allows for the gas kinetics to be self-adjusting to environmental conditions. As a result, the distribution of endothermicity and exothermicity throughout the flame and for particular reversible reactions is found to be a function of the flow environment, which overcomes a major drawback of single-step models, namely a fixed heat of combustion independent of environmental conditions, or one that must be determined separately from the model itself.

  19. Follow these steps to help you return to good academic standing (and possibly regain your scholarships).

    E-Print Network [OSTI]

    Duchowski, Andrew T.

    @clemson.edu. #12;STEP 3. Utilize the ASC Services STEP 4. Contact us with any questions. We are here to help you:00 pm. Pre-register online at clemson.edu/asc/workshops/register.html?wkshpID=774. Learn the university session (meeting twice a week). See session times and register with the online form at the following link

  20. Follow these steps to help you return to good academic standing (and possibly regain your scholarships).

    E-Print Network [OSTI]

    Duchowski, Andrew T.

    @clemson.edu. #12;STEP 3. Utilize the ASC Services STEP 4. Contact us with any questions. We are here to help you (meeting once a week) or a 4 week session (meeting twice a week). See session times and register to success. Register online using this link: http://www.clemson.edu/asc/workshops/ register.html?wkshpID=695

  1. Steps on anatase TiO2(101) XUE-QING GONG1

    E-Print Network [OSTI]

    Diebold, Ulrike

    of anatase titanium dioxide (TiO2). This surface is of great interest in its own right. TiO2 is one with the theoretical predictions. Step-edge formation energies as well as the adsorption energies of water scale to be related to defects3,4 . Steps are special adsorption sites for molecules5­7 , and most metals

  2. Large-amplitude internal wave generation in the lee of step-shaped topography

    E-Print Network [OSTI]

    Sutherland, Bruce

    1 Large-amplitude internal wave generation in the lee of step-shaped topography B. R. Sutherland are generated in the lee of flow over a smoothly varying topographic step. In this idealized study are generated both because of buoyancy restoring forces (returning stratified fluid driven up and over the hill

  3. Multi-step quantum secure direct communication using multi-particle Green-Horne-Zeilinger state

    E-Print Network [OSTI]

    Chuan Wang; Fu Guo Deng; Gui Lu Long

    2006-01-21T23:59:59.000Z

    A multi-step quantum secure direct communication protocol using blocks of multi-particle maximally entangled state is proposed. In this protocol, the particles in a Green-Horne-Zeilinger state are sent from Alice to Bob in batches in several steps. It has the advantage of high efficiency and high source capacity.

  4. Multi-step quantum secure direct communication using multi-particle Green-Horne-Zeilinger state

    E-Print Network [OSTI]

    Wang, C; Long, G L; Wang, Chuan; Deng, Fu Guo; Long, Gui Lu

    2005-01-01T23:59:59.000Z

    A multi-step quantum secure direct communication protocol using blocks of multi-particle maximally entangled state is proposed. In this protocol, the particles in a Green-Horne-Zeilinger state are sent from Alice to Bob in batches in several steps. It has the advantage of high efficiency and high source capacity.

  5. CONTINUUM RELAXATION OF INTERACTING STEPS ON CRYSTAL SURFACES IN 2+1 DIMENSIONS

    E-Print Network [OSTI]

    energetics, which include the tendency of closed steps to reduce their length via motion driven by curvature and become flat under the influence of step energetics and kinetics. In this article, we address 02139 (dio@math.mit.edu). Courant Institute, New York University, 251 Mercer Street, New York, NY 10012

  6. UNIVERSITY OF CHICAGO TOPOLOGY AND HETEROGENEITY AT THE RATE-LIMITING STEP

    E-Print Network [OSTI]

    Sosnick, Tobin R.

    UNIVERSITY OF CHICAGO TOPOLOGY AND HETEROGENEITY AT THE RATE-LIMITING STEP OF THE PROTEIN FOLDING .......................................................................... 2 1.3 Physical processes in protein folding...................................................... 5 of the rate-limiting step in protein folding ...................... 11 1.4.1 Two-state mechanisms and TS

  7. E-Print Network 3.0 - association networks obtained Sample Search...

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

    Sample search results for: association networks obtained Page: << < 1 2 3 4 5 > >> 1 Ad Hoc Networking Critical Features and Performance Metrics Madhavi W. Subbarao Summary:...

  8. U-017: HP MFP Digital Sending Software Lets Local Users Obtain...

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

    TRACETRACK Support Lets Remote Users Obtain Potentially Sensitive Information V-002: EMC NetWorker Module for Microsoft Applications Lets Remote Users Execute Arbitrary Code...

  9. Method and apparatus for obtaining enhanced production rate of thermal chemical reactions

    DOE Patents [OSTI]

    Tonkovich, Anna Lee Y. (Pasco, WA); Wang, Yong (Richland, WA); Wegeng, Robert S. (Richland, WA); Gao, Yufei (Kennewick, WA)

    2006-05-16T23:59:59.000Z

    Reactors and processes are disclosed that can utilize high heat fluxes to obtain fast, steady-state reaction rates. Porous catalysts used in conjunction with microchannel reactors to obtain high rates of heat transfer are also disclosed. Reactors and processes that utilize short contact times, high heat flux and low pressure drop are described. Improved methods of steam reforming are also provided.

  10. Method and apparatus for obtaining enhanced production rate of thermal chemical reactions

    DOE Patents [OSTI]

    Tonkovich, Anna Lee; Wang, Yong; Wegeng, Robert S.; Gao, Yufei

    2003-09-09T23:59:59.000Z

    Reactors and processes are disclosed that can utilize high heat fluxes to obtain fast, steady-state reaction rates. Porous catalysts used in conjunction with microchannel reactors to obtain high rates of heat transfer are also disclosed. Reactors and processes that utilize short contact times, high heat flux and low pressure drop are described. Improved methods of steam reforming are also provided.

  11. The chemistry of minerals obtained from the combustion of Jordanian oil shale

    E-Print Network [OSTI]

    Shawabkeh, Reyad A.

    The chemistry of minerals obtained from the combustion of Jordanian oil shale Awni Y. Al was performed on the spent oil shale (oil shale ash) obtained from the combustion of Jordanian oil shale process, minimal fragmentation was encountered since Jordanian oil shale contains large proportions of ash

  12. Interfacial and colloidal behavior of asphaltenes obtained from Brazilian crude oils

    E-Print Network [OSTI]

    Loh, Watson

    Interfacial and colloidal behavior of asphaltenes obtained from Brazilian crude oils Anto present new data on the interfacial and colloidal behavior of asphaltenes in model aromatic solvents, inhibition of deposition and emulsion stabilization capacities for two types of asphaltenes obtained from

  13. Mixed n-Step MIR Inequalities, n-Step Conic MIR Inequalities and a Polyhedral Study of Single Row Facility Layout Problem

    E-Print Network [OSTI]

    Sanjeevi, Sujeevraja

    2012-10-19T23:59:59.000Z

    of these inequalities. First we introduce the mixed n-step mixed integer rounding (MIR) inequalities for a generalization of the mixing set which we refer to as the n-mixing set. The n-mixing set is a multi-constraint mixed integer set in which each constraint has n...

  14. What Steps Do You Take to Drive Less? | Department of Energy

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

    Addthis Related Articles What Steps Do You Take to Improve Your Fuel Economy? How Would You Use a Smart Meter to Manage Your Energy Use? How Do You Ensure Your Ducts Aren't Leaky...

  15. One-Step No-Bake Hydrogen Storage Material | The Ames Laboratory

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

    One-Step No-Bake Hydrogen Storage Material Scientists have designed a simple and direct method for the synthesis of a solid-state hydrogen storage material, alane (AlH3). Alane,...

  16. Question of the Week: What Steps Do You Take to Be Safe and Efficient...

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

    and we hope you're staying safe on the road while still keeping efficient driving in mind. What steps do you take to be safe and efficient when driving in the winter? E-mail...

  17. Renewable Energy Project Development and Finance Framework: The Five-Step Process Webinar

    Broader source: Energy.gov [DOE]

    Attendees will be introduced to the five key steps of the energy project development framework that lead up to a successful project: 1) Understanding Project Savings and Production Potential, 2)...

  18. Design and optimization of stepped austempered ductile iron using characterization techniques

    SciTech Connect (OSTI)

    Hernández-Rivera, J.L., E-mail: jose.hernandez@cimav.edu.mx [Centro de Investigación en Materiales Avanzados-Laboratorio Nacional de Nanotecnología, Miguel de Cervantes 120, Z.C. 31109, Chihuahua (Mexico); Garay-Reyes, C.G.; Campos-Cambranis, R.E.; Cruz-Rivera, J.J. [Facultad de Ingeniería, Universidad Autónoma de San Luis Potosí, Sierra Leona 550, Lomas 2a. sección, Z.C. 78210, San Luis Potosí (Mexico)

    2013-09-15T23:59:59.000Z

    Conventional characterization techniques such as dilatometry, X-ray diffraction and metallography were used to select and optimize temperatures and times for conventional and stepped austempering. Austenitization and conventional austempering time was selected when the dilatometry graphs showed a constant expansion value. A special heat color-etching technique was applied to distinguish between the untransformed austenite and high carbon stabilized austenite which had formed during the treatments. Finally, it was found that carbide precipitation was absent during the stepped austempering in contrast to conventional austempering, on which carbide evidence was found. - Highlights: • Dilatometry helped to establish austenitization and austempering parameters. • Untransformed austenite was present even for longer processing times. • Ausferrite formed during stepped austempering caused important reinforcement effect. • Carbide precipitation was absent during stepped treatment.

  19. One-step continuous synthesis of biocompatible gold nanorods for optical coherence tomography

    E-Print Network [OSTI]

    Sebastián, Víctor

    We present a novel one-step flow process to synthesize biocompatible gold nanorods with tunable absorption and biocompatible surface ligands. Photothermal optical coherence tomography (OCT) of human breast tissue is ...

  20. Long-Wavelength Local Density of States Oscillations Near Graphene Step Edges

    E-Print Network [OSTI]

    Xue, Jiamin

    Using scanning tunneling microscopy and spectroscopy, we have studied the local density of states (LDOS) of graphene over step edges in boron nitride. Long-wavelength oscillations in the LDOS are observed with maxima ...

  1. Plane wave stability of the split-step Fourier method for the nonlinear Schrodinger equation

    E-Print Network [OSTI]

    Faou, Erwan

    of linear stability and a non-resonance condition. They can both be verified if the time step Bretagne, Avenue Robert Schumann, F-35170 Bruz, France (Erwan.Faou@inria.fr). 2D´epartement de math

  2. E-Print Network 3.0 - al phosphor obtained Sample Search Results

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

    Engineering ; Materials Science 2 A nearly ideal phosphor-converted white light-emitting diode Steven C. Allen and Andrew J. Steckla Summary: by the phosphor to obtain white...

  3. Obtaining and Ensuring Persistence of O&M Savings Through Resource Conservation Management

    E-Print Network [OSTI]

    Miller, W.

    2001-01-01T23:59:59.000Z

    OBTAINING AND ENSURING PERSISTENCE OF O&M SAVINGS THROUGH RESOURCE CONSERVATION MANAGEMENT WILL MILLER ASSOCIATE DIRECTOR ? TECHNICAL SERVICES PORTLAND ENERGY CONSERVATION, INC. (PECI) PORTLAND, OREGON ABSTRACT Resource conservation management is a...

  4. One-step patterning of double tone high contrast and high refractive index inorganic spin-on resist

    SciTech Connect (OSTI)

    Zanchetta, E.; Della Giustina, G.; Brusatin, G. [Industrial Engineering Department and INSTM, Via Marzolo 9, 35131 Padova (Italy)

    2014-09-14T23:59:59.000Z

    A direct one-step and low temperature micro-fabrication process, enabling to realize large area totally inorganic TiO{sub 2} micro-patterns from a spin-on resist, is presented. High refractive index structures (up to 2 at 632?nm) without the need for transfer processes have been obtained by mask assisted UV lithography, exploiting photocatalytic titania properties. A distinctive feature not shared by any of the known available resists and boosting the material versatility, is that the system behaves either as a positive or as negative tone resist, depending on the process parameters and on the development chemistry. In order to explain the resist double tone behavior, deep comprehension of the lithographic process parameters optimization and of the resist chemistry and structure evolution during the lithographic process, generally uncommon in literature, is reported. Another striking property of the presented resist is that the negative tone shows a high contrast up to 19, allowing to obtain structures resolution down to 2??m wide. The presented process and material permit to directly fabricate different titania geometries of great importance for solar cells, photo-catalysis, and photonic crystals applications.

  5. Electric and magnetic fields and field derivatives from lightning stepped leaders and first return strokes measured at distances

    E-Print Network [OSTI]

    Florida, University of

    Electric and magnetic fields and field derivatives from lightning stepped leaders and first return; published 5 September 2008. [1] Using electric and magnetic field and field derivative sensors arrayed over-peak width of the stepped-leader/return-stroke electric field waveform; the stepped-leader electric field

  6. Steps to starting a LEGO robotics program Congratulations on your decision to start a robotics program! Whether you are a

    E-Print Network [OSTI]

    Keinan, Alon

    Steps to starting a LEGO robotics program Congratulations on your decision to start a robotics of support as you move through this process. Carnegie Mellon's Robotics Academy has compiled a comprehensive that they are trying to achieve as well as how robotics aligns with their school district's standards. Step by step

  7. Quantitative comparison of fuel spray images obtained using ultrafast coherent and incoherent double-pulsed illumination

    E-Print Network [OSTI]

    Purwar, Harsh; Idlahcen, Saïd; Rozé, Claude; Blaisot, Jean-Bernard; Ménard, Thibault

    2015-01-01T23:59:59.000Z

    We present a quantitative comparison between the high-pressure fuel spray images obtained experimentally using classical imaging with coherent and incoherent ultrafast illuminations recorded using a compatible CMOS camera. The ultrafast, incoherent illumination source was extracted from the supercontinuum generated by tightly focusing the femtosecond laser pulses in water. The average velocity maps computed using time-correlated image-pairs and spray edge complexity computed using the average curvature scale space maps are compared for the spray images obtained with the two illumination techniques and also for the numerically simulated spray using the coupled volume of fluid and level set method for interface tracking (direct numerical simulation or DNS). The spray images obtained with supercontinuum-derived, incoherent, ultrafast illumination are clearer, since the artifacts arising due to laser speckles and multiple diffraction effects are largely reduced and show a better correlation with the DNS results.

  8. Process For Cutting Polymers Electrolyte Multi-Layer Batteries And Batteries Obtained Thereby

    DOE Patents [OSTI]

    Gauthier, Michel (La Prairie, CA); Lessard, Ginette (Longueuil, CA); Dussault, Gaston (St-Benoit-de-Mirabel, CA); Rouillard, Roger (Beloeil, CA); Simoneau, Martin (Montreal, CA); Miller, Alan Paul (Woodbury, MN)

    2003-09-09T23:59:59.000Z

    A stacking of battery laminate is prepared, each battery consisting of anode, polymer electrolyte, cathode films and possibly an insulating film, under conditions suitable to constitute a rigid monoblock assembly, in which the films are unitary with one another. The assembly obtained is thereafter cut in predetermined shape by using a mechanical device without macroscopic deformation of the films constituting the assembly and without inducing permanent short circuits. The battery which is obtained after cutting includes at least one end which appears as a uniform cut, the various films constituting the assembly having undergone no macroscopic deformation, the edges of the films of the anode including an electronically insulating passivation film.

  9. Use of aluminum phosphate as the dehydration catalyst in single step dimethyl ether process

    DOE Patents [OSTI]

    Peng, Xiang-Dong (Allentown, PA); Parris, Gene E. (Coopersburg, PA); Toseland, Bernard A. (Allentown, PA); Battavio, Paula J. (Allentown, PA)

    1998-01-01T23:59:59.000Z

    The present invention pertains to a process for the coproduction of methanol and dimethyl ether (DME) directly from a synthesis gas in a single step (hereafter, the "single step DME process"). In this process, the synthesis gas comprising hydrogen and carbon oxides is contacted with a dual catalyst system comprising a physical mixture of a methanol synthesis catalyst and a methanol dehydration catalyst. The present invention is an improvement to this process for providing an active and stable catalyst system. The improvement comprises the use of an aluminum phosphate based catalyst as the methanol dehydration catalyst. Due to its moderate acidity, such a catalyst avoids the coke formation and catalyst interaction problems associated with the conventional dual catalyst systems taught for the single step DME process.

  10. One-step aluminium-assisted crystallization of Ge epitaxy on Si by magnetron sputtering

    SciTech Connect (OSTI)

    Liu, Ziheng, E-mail: ziheng.liu@unsw.edu.au; Hao, Xiaojing; Ho-Baillie, Anita; Green, Martin A. [School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney 2052 (Australia)

    2014-02-03T23:59:59.000Z

    In this work, one-step aluminium-assisted crystallization of Ge on Si is achieved via magnetron sputtering by applying an in-situ low temperature (50?°C to 150?°C) heat treatment in between Al and Ge depositions. The effect of heat treatment on film properties and the growth mechanism of Ge epitaxy on Si are studied via X-ray diffraction, Raman and transmission electron microscopy analyses. Compared with the conventional two-step process, the one-step aluminium-assisted crystallization requires much lower thermal budget and results in pure Ge epitaxial layer, which may be suitable for use as a virtual substrate for the fabrication of III-V solar cells.

  11. Evaluation of extraction and purification methods for obtaining PCR-amplifiable DNA from compost

    E-Print Network [OSTI]

    Michel Jr., Frederick C.

    Evaluation of extraction and purification methods for obtaining PCR-amplifiable DNA from compost complicate the isolation of PCR- amplifiable DNA from compost and other organic-rich samples. In this study from compost decreased with increasing salt concentration in the lysis buffer. DNA purified by gel

  12. ORNL/CDIAC-128 CARBON DIOXIDE, HYDROGRAPHIC, AND CHEMICAL DATA OBTAINED

    E-Print Network [OSTI]

    .S.A. Prepared by Alexander Kozyr1 Carbon Dioxide Information Analysis Center 1 Energy, Environment of Biological and Environmental Research U.S. Department of Energy Budget Activity Numbers KP 12 04 01 0 and KP#12;ORNL/CDIAC-128 NDP-075 CARBON DIOXIDE, HYDROGRAPHIC, AND CHEMICAL DATA OBTAINED DURING THE R

  13. Vol. 36 (2005) ACTA PHYSICA POLONICA B No 4 NUCLEAR SHELL ENERGY OBTAINED

    E-Print Network [OSTI]

    Pomorski, Krzysztof

    , not over the single- particle energies. The new prescription for ~E is the following: · one definesVol. 36 (2005) ACTA PHYSICA POLONICA B No 4 NUCLEAR SHELL ENERGY OBTAINED BY AVERAGING IN PARTICLE (Received December 13, 2004) A revised version of the shell-correction method, based on a new way

  14. ENERGY SPECTRUM OF PRIMARY COSMIC RAYS ABOVE 1017 OBTAINED USING AKENO 20 KM2

    E-Print Network [OSTI]

    OG 6.3-3 ENERGY SPECTRUM OF PRIMARY COSMIC RAYS ABOVE 1017 EV OBTAINED USING AKENO 20 KM2 ARRAY M, Tokyo Institute of Technology, Tokyo 152, Japan . Institute of High Energy Physics, Academia Sinica these showers, 60 of them are initiated by primaries with energies larger than 1019 eV. The energy spectrum

  15. Using Euler-Lagrange Variational Principle to Obtain Flow Relations for Generalized Newtonian Fluids

    E-Print Network [OSTI]

    Taha Sochi

    2013-01-13T23:59:59.000Z

    Euler-Lagrange variational principle is used to obtain analytical and numerical flow relations in cylindrical tubes. The method is based on minimizing the total stress in the flow duct using the fluid constitutive relation between stress and rate of strain. Newtonian and non-Newtonian fluid models; which include power law, Bingham, Herschel-Bulkley, Carreau and Cross; are used for demonstration.

  16. Impact of sludge mechanical behaviour on spatial distribution parameters obtained with centrifugal spreader

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Impact of sludge mechanical behaviour on spatial distribution parameters obtained to analyse organic spreading and opens the way to more developments. Keywords: sludge rheological behaviour a large amount of residues which are spread on agricultural fields. This process of sludge reuse is mainly

  17. Administrative Procedures for Obtaining Unescorted Access to Radioactive Materials of Concern

    E-Print Network [OSTI]

    Jia, Songtao

    -related need". These mandates include fingerprint submission and a Federal Bureau of Investigation ("FBI to the FBI. The information received back from the FBI will be reviewed and confidentially considered that individual obtained from the FBI for the purpose of assuring correct and complete information. Columbia

  18. Internship Guidelines All students seeking to obtain internship credit through the Center for International Studies should

    E-Print Network [OSTI]

    Hutcheon, James M.

    Internship Guidelines All students seeking to obtain internship credit through the Center in pursuing an International Studies internship should begin making plans and searching for an internship well securing an internship at least six months in advance. For example, should you plan to complete

  19. Cooling energy demand evaluation by means of regression models obtained from dynamic simulations

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Cooling energy demand evaluation by means of regression models obtained from dynamic simulations Ph, Université Lyon1, FRANCE ABSTRACT The forecast of the energy heating/cooling demand would be a good indicator between simple and complex methods of evaluating the cooling energy demand we have proposed to use energy

  20. Gamma-strength functions in 60Ni from two-step cascades following proton capture

    E-Print Network [OSTI]

    A. Voinov; S. M. Grimes; C. R. Brune; M. Guttormsen; A. C. Larsen; T. N. Massey; A. Schiller; S. Siem

    2009-11-10T23:59:59.000Z

    The two-step cascade method previously used in neutron capture experiments is now applied to a proton capture reaction. The spectrum of two-step cascades populating the first 2+ level of 60Ni has been measured with 59Co(p,2gamma)60Ni reaction. The simulation technique used for the spectrum analysis allows one to reveal the range of possible shapes of both E1 and M1 gamma-strength functions. The low-energy enhancement previously observed in 3He induced reactions is seen to appear in M1 strength functions of 60Ni.

  1. Mast step and keelson: the early development of a shipbuilding technology

    E-Print Network [OSTI]

    Geannette, Mark Alan

    1983-01-01T23:59:59.000Z

    of the reauirement fo =I;e d'gree cf S TER O:" AB TS De ceinber 19 8 3 'I, r Sui'le c ': AT!+ ~ r polo, , l' MAST STEP AND KEELSON: THE EARLY DEVELOPMENT OF A SHIPBUILDING TECHNOLOGY A Thesis MARK ALAN GEANNETTE Approved as to style and content by: eor e F.... Bass (Chairman of Committee) *cAM )( u 5 Frede rck H. van Doorninck (Member) cy J. D r (Member ) V utahan . Brya ~, Jr (Head of Department. ) De cember 19 8 3 ABSTRACT Mast Step and Keelson: The Early Development of a Shipbuilding Technology...

  2. The cation inversion and magnetization in nanopowder zinc ferrite obtained by soft mechanochemical processing

    SciTech Connect (OSTI)

    Milutinovi?, A. [Institute of Physics, University of Belgrade, Pregrevica 118, Zemun, Belgrade (Serbia); Lazarevi?, Z., E-mail: lzorica@yahoo.com [Institute of Physics, University of Belgrade, Pregrevica 118, Zemun, Belgrade (Serbia); Jovaleki?, ?. [Institute for Multidisciplinary Research, University of Belgrade, Belgrade (Serbia); Kuryliszyn-Kudelska, I. [Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw (Poland); Rom?evi?, M.; Kosti?, S.; Rom?evi?, N. [Institute of Physics, University of Belgrade, Pregrevica 118, Zemun, Belgrade (Serbia)

    2013-11-15T23:59:59.000Z

    Graphical abstract: - Highlights: • Nano powder of ZnFe{sub 2}O{sub 4} prepared by a soft mechanochemical route after 18 h milling. • Phase formation controlled by XRD, Raman spectroscopy and magnetic measurements. • Size, strain and cation inversion degree determined by Rietveld refinement. • We were able to estimate the degree of inversion at most 0.348 and 0.4. • Obtained extremely high values of saturation magnetizations at T = 4.5 K. - Abstract: Two zinc ferrite nanoparticle materials were prepared by the same method – soft mechanochemical synthesis, but starting from different powder mixtures: (1) Zn(OH){sub 2}/?-Fe{sub 2}O{sub 3} and (2) Zn(OH){sub 2}/Fe(OH){sub 3}. In both cases a single phase system was obtained after 18 h of milling. The progress of the synthesis was controlled by X-ray diffractometry (XRD), Raman spectroscopy, TEM and magnetic measurements. Analysis of the XRD patterns by Rietveld refinement allowed determination of the cation inversion degree for both obtained single phase ZnFe{sub 2}O{sub 4} samples. The sample obtained from mixture (1) has the cation inversion degree 0.3482 and the sample obtained from mixture (2) 0.400. Magnetization measurements were confirmed that the degrees of the inversion were well estimated. Comparison with published data shows that used method of synthesis gives nano powder samples with extremely high values of saturation magnetizations: sample (1) 78.3 emu g{sup ?1} and sample (2) 91.5 emu g{sup ?1} at T = 4.5 K.

  3. Method for making graded I-III-VI.sub.2 semiconductors and solar cell obtained thereby

    DOE Patents [OSTI]

    Devaney, Walter E. (Seattle, WA)

    1987-08-04T23:59:59.000Z

    Improved cell photovoltaic conversion efficiencies are obtained by the simultaneous elemental reactive evaporation process of Mickelsen and Chen for making semiconductors by closer control of the evaporation rates and substrate temperature during formation of the near contact, bulk, and near junction regions of a graded I-III-VI.sub.2, thin film, semiconductor, such as CuInSe.sub.2 /(Zn,Cd)S or another I-III-VI.sub.2 /II-VI heterojunction.

  4. Hydrodynamic equations for electrons in graphene obtained from the maximum entropy principle

    SciTech Connect (OSTI)

    Barletti, Luigi, E-mail: luigi.barletti@unifi.it [Dipartimento di Matematica e Informatica “Ulisse Dini”, Università degli Studi di Firenze, Viale Morgagni 67/A, 50134 Firenze (Italy)

    2014-08-15T23:59:59.000Z

    The maximum entropy principle is applied to the formal derivation of isothermal, Euler-like equations for semiclassical fermions (electrons and holes) in graphene. After proving general mathematical properties of the equations so obtained, their asymptotic form corresponding to significant physical regimes is investigated. In particular, the diffusive regime, the Maxwell-Boltzmann regime (high temperature), the collimation regime and the degenerate gas limit (vanishing temperature) are considered.

  5. Broadband precision wavelength meter based on a stepping FabryProt interferometer

    E-Print Network [OSTI]

    Rehse, Steven J.

    Broadband precision wavelength meter based on a stepping Fabry­Pérot interferometer T. J. Scholl. INTRODUCTION Wavelength meters based on Michelson or Fizeau inter- ferometers have long been the standard a more general laser wavelength meter in which the FP ring pattern was employed to compare

  6. Three steps in the anode reaction of the polymer electrolyte membrane fuel cell. Effect of CO

    E-Print Network [OSTI]

    Kjelstrup, Signe

    Three steps in the anode reaction of the polymer electrolyte membrane fuel cell. Effect of CO Anne in the polymer electrolyte membrane fuel cell (PEMFC) using electrochemical impedance spectroscopy (EIS mechanism 1. Introduction In the polymer electrolyte membrane fuel cell (PEMFC), the largest overpotential

  7. Test Method Determination of sample size for step-wise transient thermal tests

    E-Print Network [OSTI]

    Pan, Ning

    and thermal diffusivity of materials simultaneously. Owing to its heating mode, the step-wise transient method 95616, USA a r t i c l e i n f o Article history: Received 13 November 2008 Accepted 6 January 2009.elsevier.com/locate/polytest ARTICLE

  8. HIGH-LEVEL MULTI-STEP INVERTER OPTIMIZATION, USING A MINIMUM NUMBER OF POWER TRANSISTORS.

    E-Print Network [OSTI]

    Catholic University of Chile (Universidad Católica de Chile)

    HIGH-LEVEL MULTI-STEP INVERTER OPTIMIZATION, USING A MINIMUM NUMBER OF POWER TRANSISTORS. Juan 56-41-246-999 e-mail lmoran@renoir.die.udec.cl ABSTRACT Multilevel inverters with a large number-5]. Multi-level inverters can operate not only with PWM techniques but also with amplitude modulation (AM

  9. Lithium Inhibits a Late Step in Agrin-Induced AChR Aggregation

    E-Print Network [OSTI]

    Sharma, Shiv K.

    Lithium Inhibits a Late Step in Agrin-Induced AChR Aggregation S. K. Sharma,* B. G. Wallace 1. Here we report that treating chick myotubes with lithium prevented any detectable agrin-induced change phosphorylation and detergent extractabil- ity. Lithium treatment also increased the rate at which AChR aggregates

  10. Stepped Pressure Equilibrium Code computes extrema of the multi-region, relaxed MHD energy principle

    E-Print Network [OSTI]

    Hudson, Stuart

    Stepped Pressure Equilibrium Code computes extrema of the multi-region, relaxed MHD energy Code, G. Dennis et al., PRL, (2013) Topological features correctly reproduced #12;SPEC: ongoing; · Recent applications a. Computed 1/x and -function singular currents in ideal equilibria; completed

  11. A Two Step Model for Linear Prediction, with Connections to PLS

    E-Print Network [OSTI]

    A Two Step Model for Linear Prediction, with Connections to PLS Ying Li Faculty of Natural ISSN, 1654-9406 ISBN, 978-91-576-9055-5 c 2011 Ying Li, Uppsala Print: SLU Service/Repro, Uppsala 2011 Model, Krylov Space, MLE, PLS. Author's address: Ying Li SLU, Department of Energy and Technology, Box

  12. Simplified Modelling and Control of a Synchronous Machine with VariableSpeed SixStep Drive

    E-Print Network [OSTI]

    Sanders, Seth

    of electrical power flow in the machine. Cost is a driving factor in the design of such a system, and the power frequency than PWM as well. II. VARIABLE­SPEED ELECTRIC MACHINE DRIVES While the choice of driveSimplified Modelling and Control of a Synchronous Machine with Variable­Speed Six­Step Drive

  13. Chloroplast Biogenesis of Photosystem II Cores Involves a Series of Assembly-Controlled Steps

    E-Print Network [OSTI]

    of the oxygen evolving enhancer (OEE) proteins, PSBO, P, and Q, on the lumenal side of the membrane. Strikingly of the reaction center subunit D2 is required for the expression of the other reaction center subunit D1, while (Morais et al., 1998). It interacts at a very early step with the reaction center (RC) subunit D2, encoded

  14. Self-assembly of silicide quantum dot arrays on stepped silicon surfaces by reactive epitaxy

    E-Print Network [OSTI]

    Ortega, Enrique

    investigated on the epitaxy and self- organization of laterally nanostructured transition metal TM silicideSelf-assembly of silicide quantum dot arrays on stepped silicon surfaces by reactive epitaxy L to be a flexible and a convenient method for the preparation of dense arrays of Co silicide quantum dots

  15. First-principles statistical mechanics approach to step decoration at surfaces Yongsheng Zhang, Karsten Reuter *

    E-Print Network [OSTI]

    -principles parameterized lattice-gas Hamiltonian (LGH) [1­3]. The concept is illustrated with the application to the on) terrace sites and at sites close to or at a (111) step. In a first stage the resulting multi-site LGH

  16. First ITER Council convened in Cadarache Historic step in the quest for clean Energy

    E-Print Network [OSTI]

    First ITER Council convened in Cadarache Historic step in the quest for clean Energy Cadarache, 28 of age in a world in desperate need of clean, abundant, and carbon dioxide-free energy." Setting a new Energy Agency (IAEA), said: "Let me congratulate all who have contributed to the achievements of the ITER

  17. Prediction of sediment transport in step-pool channels E. M. Yager,1

    E-Print Network [OSTI]

    Kirchner, James W.

    Prediction of sediment transport in step-pool channels E. M. Yager,1 W. E. Dietrich,2 J. W 2011; published 27 January 2012. [1] In mountainous drainage networks, sediment mobilized on hillslopes sediment transport equations overpredict sediment flux in steep streams by several orders of magnitude

  18. Processing Steps For Creating Standardized 5-Minute-by-Lane Datasets

    E-Print Network [OSTI]

    1 Processing Steps For Creating Standardized 5-Minute-by-Lane Datasets (program code in "city measures. · Dataset DS1: Import original source data into SAS using INFILE statement. In SAS, we give this first dataset a "DS1" label (DataSet1). Most, if not all, original source data is submitted as ASCII

  19. Identifying the Time of a Step-Change with 2 Control Charts

    E-Print Network [OSTI]

    Pignatiello, Joe

    (SPC) charts are tools that are used to monitor the state of a process by distinguishing between commonIdentifying the Time of a Step-Change with 2 Control Charts by Gunabushanam Nedumaran Oracle-3143 #12;2 Abstract If a control chart signals a change in the process parameter, identifying the time

  20. NextSTEPS White Paper: Four-Page Summary Three Routes Forward for Biofuels1

    E-Print Network [OSTI]

    California at Davis, University of

    NextSTEPS White Paper: Four-Page Summary Three Routes Forward for Biofuels1: Incremental forward for biofuels and their associated technologies. We seek to: · Highlight policy incentives that encourage certain types of biofuel innovation. · Spotlight the distinctions between the routes in terms

  1. A reduced voltage polarization intensity electrooptic modulator in SBN:60 utilizing a step strain waveguide

    E-Print Network [OSTI]

    Ottinger, Tina Lynette

    2012-06-07T23:59:59.000Z

    Strain induced optical waveguides have been produced in LiNbo3 and SBN substrate material using a step strain geometry. Propagation losses in SBN as low as 1.43 dB/cm and 2.64 dB/cm were achieved for TE and TM polarizations, respectively...

  2. Two-Step Laser Mass Spectrometry of Asphaltenes Andrew E. Pomerantz,*,

    E-Print Network [OSTI]

    Zare, Richard N.

    that high pulse energy and sample concentration promote aggregation of asphaltenes in the plasma plumeTwo-Step Laser Mass Spectrometry of Asphaltenes Andrew E. Pomerantz,*, Matthew R. Hammond, Amy L- heptane, asphaltenes are a highly aromatic, polydisperse mixture consisting of the heaviest and most polar

  3. Steps to Assemble a MiNT Node I. HARDWARE COMPONENTS WITH VENDOR LIST

    E-Print Network [OSTI]

    Chiueh, Tzi-cker

    Steps to Assemble a MiNT Node I. HARDWARE COMPONENTS WITH VENDOR LIST The following list · Vendor: http://www.mikrotik.com · Comments: RouterBoard 230 is a small form- factor embedded computing be purchased separately from the same vendor. Hence, one must buy a Compact Flash card which is used as the non

  4. Influence of steps on the interaction between adsorbed hydrogen atoms and a nickel surface

    E-Print Network [OSTI]

    Sibener, Steven

    practical phenomena such as hydrogen stor- age, corrosion, and embrittlement. One of the goals of surfaceInfluence of steps on the interaction between adsorbed hydrogen atoms and a nickel surface Aubrey T-dimensional phase behavior of adsorbed hydrogen on a Ni surface using helium atom scattering. Specifically

  5. A Three-Step Approach for Building Correct-by-Design Autonomic Service-Oriented Architectures

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    A Three-Step Approach for Building Correct-by-Design Autonomic Service-Oriented Architectures Emna Introduction Service-Oriented Architectures (SOA) represent an abstract style to implement user requirements are accessible to a large community of clients. Still, the Service-Oriented Architecture abstraction contributes

  6. A step towards the hydrogen economy by using the existing natural gas grid

    E-Print Network [OSTI]

    A step towards the hydrogen economy by using the existing natural gas grid (the NATURALHY to the hydrogen-economy will be lengthy, costly and will require significant R&D PRACTICAL STRATEGY Prepared - end use · Pipeline durability · Pipeline integrity · End user appliances' performance Prepared by O

  7. Single Step Channeling in Glass Interior by Femtosecond Laser Panjawat Kongsuwan, Hongliang Wang, Y. Lawrence Yao

    E-Print Network [OSTI]

    Yao, Y. Lawrence

    rather than hybrid processes that combine the laser irradiation with an additional tool or step to remove the material. Tightly focusing of a single femtosecond laser pulse using proper optical and laser processing are microsystems integrated with functional components such as micro-optics, waveguides and micro- fluidics aiming

  8. Time Step Sensitivity of Nonlinear Atmospheric Models: Numerical Convergence, Truncation Error Growth, and Ensemble Design

    E-Print Network [OSTI]

    Judd, Kevin

    1973; Oran and Boris 1987; Murray 1989; Gershenfeld 1999). Weather and climate prediction models, which to the initial conditions, which is a major source of uncertainty in Numerical Weather Prediction (NWP; eTime Step Sensitivity of Nonlinear Atmospheric Models: Numerical Convergence, Truncation Error

  9. A two-step nucleotide-flipping mechanism enables kinetic discrimination of DNA lesions by AGT

    E-Print Network [OSTI]

    Dinner, Aaron

    A two-step nucleotide-flipping mechanism enables kinetic discrimination of DNA lesions by AGT Jie serve as a paradigm for the many nucleotide-flipping proteins that regulate genes and repair DNA in all trajectories of molecu- larly rare events now enable us to elucidate a pathway for nucleotide flipping by AGT

  10. We're a step closer to taming the Sun (Filed: 06/07/2005)

    E-Print Network [OSTI]

    We're a step closer to taming the Sun (Filed: 06/07/2005) An experimental thermonuclear reactor days in the 1950s when scientists first dreamt of taming the Sun, tens of billions have been spent that fusion - the source of the Sun's power - could solve the world's future energy needs by generating vast

  11. Single-Step Assembly of Homogenous Lipid Polymeric and Lipid Quantum

    E-Print Network [OSTI]

    Zhang, Liangfang

    Single-Step Assembly of Homogenous Lipid Polymeric and Lipid Quantum Dot Nanoparticles Enabled shown that hybrid lipid polymeric NPs combine the desir- able characteristics of polymeric NPs by entrapping one agent in the lipid envelope and the other one in the polymeric core.5 The development of novel

  12. Included are Popular Write-ups (in order) of: STEP Cement

    E-Print Network [OSTI]

    Schmitt, William R.

    atmospheric carbon dioxide to preindustrial levels in a decade, harnessing the sun's power to make useful products at the same time. by Elizabeth Svoboda published online August 1, 2011 Stuart Licht's STEP (Solar Thermal Electrochemical Production) process uses solar energy to break down atmospheric CO2 and other

  13. Higher-order effects on Shapiro steps in Josephson junctions Kim O" . Rasmussen and Vadim Zharnitsky*

    E-Print Network [OSTI]

    Zharnitsky, Vadim

    Higher-order effects on Shapiro steps in Josephson junctions Kim O" . Rasmussen and Vadim is that the pendulum equation is the most widely used model for super- conducting Josephson junctions.1,8 Particularly Josephson junction, where phase-locking of the voltage response to an ac current can occur in certain

  14. One step process for producing dense aluminum nitride and composites thereof

    DOE Patents [OSTI]

    Holt, J. Birch (San Jose, CA); Kingman, Donald D. (Danville, CA); Bianchini, Gregory M. (Livermore, CA)

    1989-01-01T23:59:59.000Z

    A one step combustion process for the synthesis of dense aluminum nitride compositions is disclosed. The process comprises igniting pure aluminum powder in a nitrogen atmosphere at a pressure of about 1000 atmospheres or higher. The process enables the production of aluminum nitride bodies to be formed directly in a mold of any desired shape.

  15. Water adsorption on stepped ZnO surfaces from MD simulation David Raymand a

    E-Print Network [OSTI]

    Goddard III, William A.

    Water adsorption on stepped ZnO surfaces from MD simulation David Raymand a , Adri C.T. van Duin b Keywords: Zinc oxide Water Solid­gas interfaces Construction and use of effective interatomic interactions force-field for use in molecular dynamics simulations of the ZnO­ water system. The force

  16. Fusion Ignition Research Experiment (FIRE) A Next Step Option for MFE

    E-Print Network [OSTI]

    Laboratory Bechtel Technology and Consulting General Atomics Technology Georgia Institute of Technology Idaho Burning Plasma Experiment is Needed. ......A necessary next major scientific step is the exploration using different concepts to explore this scientific frontier. Thus, the program confronts a management

  17. A modified Activated Sludge Model No. 3 (ASM3) with two-step nitrificationedenitrification

    E-Print Network [OSTI]

    A modified Activated Sludge Model No. 3 (ASM3) with two-step nitrificationedenitrification Ilenia of the Activated Sludge Models (ASM) [Henze, M., Gujer, W., Mino, T., van Loosdrecht, M.C.M., 2000. Ac- tivated Sludge Models ASM1, ASM2, ASM2d, and ASM3. IWA Scientific and Technical Report No. 9. IWA Publishing

  18. INTERACTIVE SMALL-STEP ALGORITHMS II: ABSTRACT STATE MACHINES AND THE CHARACTERIZATION THEOREM

    E-Print Network [OSTI]

    Blass, Andreas R.

    , MA 02139, U.S.A. e-mail address: brossman@mit.edu Abstract. In earlier work, the Abstract StateINTERACTIVE SMALL-STEP ALGORITHMS II: ABSTRACT STATE MACHINES AND THE CHARACTERIZATION THEOREM Machine Thesis -- that arbitrary algo- rithms are behaviorally equivalent to abstract state machines

  19. Ergonomics Self-Evaluation: Computer Workstation Step 1: Adjust the Chair

    E-Print Network [OSTI]

    Johnston, Daniel

    Ergonomics Self-Evaluation: Computer Workstation Step 1: Adjust the Chair a. Seat height ­ Adjust medical condition or ergonomic concern, contact the UT at Austin Occupational Health Program at 512.471.4OHP(4647). http://www.utexas.edu/hr/current/services/ohp.html Ergonomic evaluation services

  20. Influence of oxygen dissolution history on reconstruction behavior of a stepped metal surface

    E-Print Network [OSTI]

    Sibener, Steven

    that the upper end of the thermal range over which this stepped metal surface transforms from single to double Present address: Applied Materials, Inc., 3050 Bowers Ave, Santa Clara, CA 95054-3299, USA. 3 Present for oxygen and are more resistant to forming oxides. Structural phase sensitivity of these high index

  1. Published: 11 July 2013 Healing Egypt: Three Steps to Unify a Divided

    E-Print Network [OSTI]

    Zewail, Ahmed

    1 Published: 11 July 2013 Healing Egypt: Three Steps to Unify a Divided Nation The uprising of millions of Egyptians since June 30 has led to sharp polarization. Growing up in Egypt, I never saw the military should be punished by stopping US aid to Egypt. The picture is not this simple, and the current

  2. Published as Feature Article: 12 July 2013 Healing Egypt: Three Steps to Unify the Nation

    E-Print Network [OSTI]

    Zewail, Ahmed

    1 Published as Feature Article: 12 July 2013 Healing Egypt: Three Steps to Unify the Nation Op by stopping U.S. aid to Egypt. The picture is not this simple, and the current situation is more than a coup troubled Middle East. The real question is: What can be done for Egypt in its democratic transition

  3. Nine Regimes of Radio Spectrum Management: A 4-Step Decision Guide

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Nine Regimes of Radio Spectrum Management: A 4-Step Decision Guide Gérard POGOREL Ecole Nationale N°65 April 2007 Summary Diverse radio spectrum management regimes are defined according to 4 levels in the next decade. The generally accepted view is that this will provoke an increased need for radio spectrum

  4. High temperature superconductor step-edge Josephson junctions using Ti-Ca-Ba-Cu-O

    SciTech Connect (OSTI)

    Ginley, D.S.; Hietala, V.M.; Hohenwarter, G.K.G.; Martens, J.S.; Plut, T.A.; Tigges, C.P.; Vawter, G.A.; Zipperian, T.E.

    1994-10-25T23:59:59.000Z

    A process is disclosed for formulating non-hysteretic and hysteretic Josephson junctions using HTS materials which results in junctions having the ability to operate at high temperatures while maintaining high uniformity and quality. The non-hysteretic Josephson junction is formed by step-etching a LaAlO[sub 3] crystal substrate and then depositing a thin film of TlCaBaCuO on the substrate, covering the step, and forming a grain boundary at the step and a subsequent Josephson junction. Once the non-hysteretic junction is formed the next step to form the hysteretic Josephson junction is to add capacitance to the system. In the current embodiment, this is accomplished by adding a thin dielectric layer, LaA1O[sub 3], followed by a cap layer of a normal metal where the cap layer is formed by first depositing a thin layer of titanium (Ti) followed by a layer of gold (Au). The dielectric layer and the normal metal cap are patterned to the desired geometry. 8 figs.

  5. High temperature superconductor step-edge Josephson junctions using Ti-Ca-Ba-Cu-O

    SciTech Connect (OSTI)

    Ginley, David S. (Evergreen, CO); Hietala, Vincent M. (Placitas, NM); Hohenwarter, Gert K. G. (Madison, WI); Martens, Jon S. (Sunnyvale, CA); Plut, Thomas A. (Albuquerque, NM); Tigges, Chris P. (Albuquerque, NM); Vawter, Gregory A. (Albuquerque, NM); Zipperian, Thomas E. (Albuquerque, NM)

    1994-10-25T23:59:59.000Z

    A process for formulating non-hysteretic and hysteretic Josephson junctions using HTS materials which results in junctions having the ability to operate at high temperatures while maintaining high uniformity and quality. The non-hysteretic Josephson junction is formed by step-etching a LaAlO.sub.3 crystal substrate and then depositing a thin film of TlCaBaCuO on the substrate, covering the step, and forming a grain boundary at the step and a subsequent Josephson junction. Once the non-hysteretic junction is formed the next step to form the hysteretic Josephson junction is to add capacitance to the system. In the current embodiment, this is accomplished by adding a thin dielectric layer, LaA1O.sub.3, followed by a cap layer of a normal metal where the cap layer is formed by first depositing a thin layer of titanium (Ti) followed by a layer of gold (Au). The dielectric layer and the normal metal cap are patterned to the desired geometry.

  6. Exploratory Research on Novel Coal Liquefaction Concept - Task 2: Evaluation of Process Steps.

    SciTech Connect (OSTI)

    Brandes, S.D.; Winschel, R.A.

    1997-05-01T23:59:59.000Z

    A novel direct coal liquefaction technology is being investigated in a program being conducted by CONSOL Inc. with the University of Kentucky, Center for Applied Energy Research and LDP Associates under DOE Contract DE-AC22-95PC95050. The novel concept consists of a new approach to coal liquefaction chemistry which avoids some of the inherent limitations of current high-temperature thermal liquefaction processes. The chemistry employed is based on hydride ion donation to solubilize coal at temperatures (350-400{degrees}C) significantly lower than those typically used in conventional coal liquefaction. The process concept being explored consists of two reaction stages. In the first stage, the coal is solubilized by hydride ion donation. In the second, the products are catalytically upgraded to acceptable refinery feedstocks. The program explores not only the initial solubilization step, but integration of the subsequent processing steps, including an interstage solids-separation step, to produce distillate products. A unique feature of the process concept is that many of the individual reaction steps can be decoupled, because little recycle around the liquefaction system is expected. This allows for considerable latitude in the process design. Furthermore, this has allowed for each key element in the process to be explored independently in laboratory work conducted under Task 2 of the program.

  7. The automatic reconfiguration of electric shipboard power systems is an important step toward improved

    E-Print Network [OSTI]

    Lai, Hong-jian

    are envisioned by redes- igning the electric power system and its controls. This research focuses on a new schemeABSTRACT The automatic reconfiguration of electric shipboard power systems is an important step answer for a decentralized energy management system of the electric shipboard power system is addressed

  8. The spiral troughs of Mars as cyclic steps Isaac B. Smith,1

    E-Print Network [OSTI]

    Spiga, Aymeric

    The spiral troughs of Mars as cyclic steps Isaac B. Smith,1 John W. Holt,1 Aymeric Spiga,2 Alan D to estimate the rate of upstream migration caused by katabatic winds for the spiral troughs. Citation: Smith are constructional features, having migrated northward during deposition since their onset [Smith and Holt, 2010

  9. Branch structures at the steps of the devil's staircase of the sine circle map

    SciTech Connect (OSTI)

    Wen, H.C. (Department of Physics, Stanford University, Stanford, California 94305 (United States)); Duong-van, M. (Physics Department, Lawrence Livermore National Laboratory, University of California, Livermore, California 94550 (United States))

    1992-09-15T23:59:59.000Z

    We have discovered substructures consisting of branches at each step of the devil's staircase of the sine circle map. These substructures are found to follow the hierarchy of the Farey tree. We develop a formalism to relate the rational winding number {ital W}={ital p}/{ital q} to the number of branches in these substructures.

  10. Automated ECG artefact reduction in EEG as a preprocessing step for neonatal seizure detection

    E-Print Network [OSTI]

    Automated ECG artefact reduction in EEG as a preprocessing step for neonatal seizure detection W and automated analysis of the EEG much more difficult. This paper addresses the problem of removing the ECG EEG of newborn children with perinatal asphyxia. Results show that ICA is able to extract the ECG from

  11. Rigidity-dependent cosmic ray energy spectra in the knee region obtained with the GAMMA experiment

    E-Print Network [OSTI]

    A. P. Garyaka; R. M. Martirosov; S. V. Ter-Antonyan; N. Nikolskaya; Y. A. Gallant; L. Jones; J. Procureur

    2007-04-24T23:59:59.000Z

    On the basis of the extensive air shower (EAS) data obtained by the GAMMA experiment, the energy spectra and elemental composition of the primary cosmic rays are derived in the 1-100 PeV energy range. The reconstruction of the primary energy spectra is carried out using an EAS inverse approach in the framework of the SIBYLL2.1 and QGSJET01 interaction models and the hypothesis of power-law primary energy spectra with rigidity-dependent knees. The energy spectra of primary H, He, O-like and Fe-like nuclei obtained with the SIBYLL interaction model agree with corresponding extrapolations of the balloon and satellite data to ~1 PeV energies. The energy spectra obtained from the QGSJET model show a predominantly proton composition in the knee region. The rigidity-dependent knee feature of the primary energy spectra for each interaction model is displayed at the following rigidities: ~2.5+/-0.2 PV (SIBYLL) and ~3.1-4.2 PV (QGSJET). All the results presented are derived taking into account the detector response, the reconstruction uncertainties of the EAS parameters, and fluctuations in the EAS development.

  12. Rigidity-dependent cosmic ray energy spectra in the knee region obtained with the GAMMA experiment

    E-Print Network [OSTI]

    Garyaka, A P; Ter-Antonian, S V; Nikolskaya, N; Gallant, Y A; Jones, L; Procureur, J

    2007-01-01T23:59:59.000Z

    On the basis of the extensive air shower (EAS) data obtained by the GAMMA experiment, the energy spectra and elemental composition of the primary cosmic rays are derived in the 1-100 PeV energy range. The reconstruction of the primary energy spectra is carried out using an EAS inverse approach in the framework of the SIBYLL2.1 and QGSJET01 interaction models and the hypothesis of power-law primary energy spectra with rigidity-dependent knees. The energy spectra of primary H, He, O-like and Fe-like nuclei obtained with the SIBYLL interaction model agree with corresponding extrapolations of the balloon and satellite data to ~1 PeV energies. The energy spectra obtained from the QGSJET model show a predominantly proton composition in the knee region. The rigidity-dependent knee feature of the primary energy spectra for each interaction model is displayed at the following rigidities: ~2.5+/-0.2 PV (SIBYLL) and ~3.1-4.2 PV (QGSJET). All the results presented are derived taking into account the detector response, th...

  13. WIPP radiological assistance team dispatched to Los Alamos as precautionary measure

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism inS-4500IIVasudhaSurface.Laboratory30, 2014 WIPP3,2,Radiological

  14. Review: Precautionary Tools for Reshaping Environmental Policy, by Nancy J. Myers and Carolyn Raffensperger (eds.)

    E-Print Network [OSTI]

    Carchidi, Victoria

    2008-01-01T23:59:59.000Z

    who cares about environmental policy— which should includeTools for Reshaping Environmental Policy Edited by Nancy J.Tools for Reshaping Environmental Policy. Cambridge, MA: MIT

  15. Brownian cluster dynamics with short range patchy interactions. Its application to polymers and step-growth polymerization

    E-Print Network [OSTI]

    Achutha Prabhu; Sujin B. Babu; Jorge S. Dolado; J. -C. Gimel

    2014-04-15T23:59:59.000Z

    We present a novel simulation technique derived from Brownian cluster dynamics used so far to study the isotropic colloidal aggregation. It now implements the classical Kern-Frenkel potential to describe patchy interactions between particles. This technique gives access to static properties, dynamics and kinetics of the system, even far from the equilibrium. Particle thermal motions are modeled using billions of independent small random translations and rotations, constrained by the excluded volume and the connectivity. This algorithm, applied to a single polymer chain leads to correct static and dynamic properties, in the framework where hydrodynamic interactions are ignored. By varying patch angles, various chain flexibilities can be obtained. We have used this new algorithm to model step-growth polymerization under various solvent qualities. The polymerization reaction is modeled by an irreversible aggregation between patches while an isotropic finite square-well potential is superimposed to mimic the solvent quality. In bad solvent conditions, a competition between a phase separation (due to the isotropic interaction) and polymerization (due to patches) occurs. Surprisingly, an arrested network with a very peculiar structure appears. It is made of strands and nodes. Strands gather few stretched chains that dip into entangled globular nodes. These nodes act as reticulation points between the strands. The system is kinetically driven and we observe a trapped arrested structure. That demonstrates one of the strengths of this new simulation technique. It can give valuable insights about mechanisms that could be involved in the formation of stranded gels.

  16. When Smoothening Makes It Rough: Unhindered Step-Edge Diffusion and the Meandering Instability on Metal Surfaces

    SciTech Connect (OSTI)

    Nita, F. [LASMEA, UMR 6602 CNRS, Universite Blaise Pascal-Clermont 2, F-63177 Aubiere Cedex (France); Institute of Physical Chemistry 'IG Murgulescu' of Romanian Academy, Splaiul Independentei 202, Bucharest (Romania); Pimpinelli, A. [LASMEA, UMR 6602 CNRS, Universite Blaise Pascal-Clermont 2, F-63177 Aubiere Cedex (France)

    2005-09-02T23:59:59.000Z

    The precise microscopic origin of step meandering is not known in many real situations. A detailed study of this instability has been made for copper, and none of the microscopic mechanisms proposed until now is able to describe all of the observed characteristic features of the instability, in particular, its dependence on the crystallographic orientations of steps. We propose a novel scenario, and using kinetic Monte Carlo simulations we show that essentially all features of step meandering of copper can be explained, if atoms diffuse along step edges and freely turn around the kinks they encounter along the ledge. Then, in a rather counterintuitive way, step meandering appears due to the very mechanism -step-edge diffusion - that may be expected to oppose it.

  17. The use of particle tracking to obtain planar velocity measurements in an unsteady laminar diffusion flame

    SciTech Connect (OSTI)

    Lewis, G.S.; Cantwell, B.J.; Lecuona, A.

    1987-01-01T23:59:59.000Z

    An investigation of the flame-flow interaction in an unsteady laminar co-flowing jet diffusion flame is underway. The flame is made periodic by acoustic excitation of the fuel stream. The objective of the research is to develop a better understanding of the relationship between the flowfield and combustion process by superimposing measurements of the vector velocity field on planar measurements of reactive and passive scalars. In this connection a technique is being developed to obtain instantaneous two-dimensional velocity measurements from multiply-exposed photographic images of scattered light from speed particles in the flow. The technique involves simple photographic images taken at a right angle to a thin laser sheet on the diametric center of the jet. The illumination source is pulsed Cu vapor laser. The important issues considered have included the particle type and size as they relate to the particle's ability to follow the flow and to withstand combustion temperatures. Also of concern is the effect of thermophoretic forces on the measurement accuracy. Both Al/sub 2/O/sub 3/ and TiO/sub 2/ have been used successfully and detailed information about the size and geometry of TiO/sub 2/ particles has been obtained through scanning electron microscope photographs. The TiO/sub 2/ particles have been produced from the reaction of TiCl/sub 4/ and water. The technique has been successfully demonstrated by measuring a cold laminar jet exit velocity profile. Also, good particle images have been obtained in a pulsed diffusion flame.

  18. Results of the 2013 UT modeling benchmark obtained with models implemented in CIVA

    SciTech Connect (OSTI)

    Toullelan, Gwénaël; Raillon, Raphaële; Chatillon, Sylvain [CEA, LIST, 91191Gif-sur-Yvette (France); Lonne, Sébastien [EXTENDE, Le Bergson, 15 Avenue Emile Baudot, 91300 MASSY (France)

    2014-02-18T23:59:59.000Z

    The 2013 Ultrasonic Testing (UT) modeling benchmark concerns direct echoes from side drilled holes (SDH), flat bottom holes (FBH) and corner echoes from backwall breaking artificial notches inspected with a matrix phased array probe. This communication presents the results obtained with the models implemented in the CIVA software: the pencilmodel is used to compute the field radiated by the probe, the Kirchhoff approximation is applied to predict the response of FBH and notches and the SOV (Separation Of Variables) model is used for the SDH responses. The comparison between simulated and experimental results are presented and discussed.

  19. Comparison of product yields obtained from the New Albany Shale by different rapid heating retorting procedures

    SciTech Connect (OSTI)

    Rubel, A.M.; Audeh, C.A.

    1985-02-01T23:59:59.000Z

    Seven samples of New Albany Shale, Clegg Creek Member were independently evaluated for possible oil yield enhancement above Fischer Assay. Bulk samples were crushed, blended, sieved and riffled into representative aliquots and then divided between two laboratories. Samples were evaluated by the ASTM Fischer Assay and the Rapid Heat Up Assay (RHU). Results provided the first case of the independent evaluation of oil yield enhancement over Fischer Assay (FA) for eastern US oil shales carried out by different laboratories working on the same samples. Oil yield enhancements were obtained by both laboratories. Fischer Assay results were remarkably comparable indicating that reproducibility is possible for eastern US shale. Results from the assays are given.

  20. Reduction of CCD observations obtained with the Fabry-Perot scanning interferometer. II. Additional Procedures

    E-Print Network [OSTI]

    A. V. Moiseev; O. V. Egorov

    2008-05-15T23:59:59.000Z

    We describe a software package used at the Special Astrophysical Observatory of the Russian Academy of Sciences to reduce and analyze the data obtained with the Fabry-Perot scanning interferometer. We already described most of the algorithms employed in our earlier Paper I (Moiseev, 2002). In this paper we focus on extra procedures required in the case of the use of a high-resolution Fabry-Perot interferometer: removal of ghosts and measurement of the velocity dispersion of ionized gas in galactic and extragalactic objects.

  1. Optimization and modeling studies for obtaining high injection efficiency at the Advanced Photon Source.

    SciTech Connect (OSTI)

    Emery, L.; APS Operations Division

    2005-01-01T23:59:59.000Z

    In recent years, the optics of the Advanced Photon Source storage ring has evolved to a lower equilibrium emittance (2.5 nm-rad) at the cost of stronger sextupoles and stronger nonlinearities, which have reduced the injection efficiency from the virtual 100% of the high emittance mode. Over the years we have developed a series of optimizations, measurements, and modeling studies of the injection process, which allows us to obtain or maintain low injection losses. The above will be described along with the injection configuration.

  2. Hamiltonian structure of reduced fluid models for plasmas obtained from a kinetic description

    E-Print Network [OSTI]

    Loïc De Guillebon; Cristel Chandre

    2012-04-19T23:59:59.000Z

    We consider the Hamiltonian structure of reduced fluid models obtained from a kinetic description of collisionless plasmas by Vlasov-Maxwell equations. We investigate the possibility of finding Poisson subalgebras associated with fluid models starting from the Vlasov-Maxwell Poisson algebra. In this way, we show that the only possible Poisson subalgebra involves the moments of zeroth and first order of the Vlasov distribution, meaning the fluid density and the fluid velocity. We find that the bracket derived in [Phys. Rev. Lett. 93, 175002 (2004)] which involves moments of order 2 is not a Poisson bracket since it does not satisfy the Jacobi identity.

  3. Idaho How to Obtain EPA ID Number Webpage | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:GreerHiCalifornia:ISI Solar JumpObtain EPA ID Number Webpage Jump to:

  4. Obtaining accurate amounts of mercury from mercury compounds via electrolytic methods

    DOE Patents [OSTI]

    Grossman, Mark W. (Belmont, MA); George, William A. (Rockport, MA)

    1987-01-01T23:59:59.000Z

    A process for obtaining pre-determined, accurate rate amounts of mercury. In one embodiment, predetermined, precise amounts of Hg are separated from HgO and plated onto a cathode wire. The method for doing this involves dissolving a precise amount of HgO which corresponds to a pre-determined amount of Hg desired in an electrolyte solution comprised of glacial acetic acid and H.sub.2 O. The mercuric ions are then electrolytically reduced and plated onto a cathode producing the required pre-determined quantity of Hg. In another embodiment, pre-determined, precise amounts of Hg are obtained from Hg.sub.2 Cl.sub.2. The method for doing this involves dissolving a precise amount of Hg.sub.2 Cl.sub.2 in an electrolyte solution comprised of concentrated HCl and H.sub.2 O. The mercurous ions in solution are then electrolytically reduced and plated onto a cathode wire producing the required, pre-determined quantity of Hg.

  5. Obtaining accurate amounts of mercury from mercury compounds via electrolytic methods

    DOE Patents [OSTI]

    Grossman, M.W.; George, W.A.

    1987-07-07T23:59:59.000Z

    A process is described for obtaining pre-determined, accurate rate amounts of mercury. In one embodiment, predetermined, precise amounts of Hg are separated from HgO and plated onto a cathode wire. The method for doing this involves dissolving a precise amount of HgO which corresponds to a pre-determined amount of Hg desired in an electrolyte solution comprised of glacial acetic acid and H[sub 2]O. The mercuric ions are then electrolytically reduced and plated onto a cathode producing the required pre-determined quantity of Hg. In another embodiment, pre-determined, precise amounts of Hg are obtained from Hg[sub 2]Cl[sub 2]. The method for doing this involves dissolving a precise amount of Hg[sub 2]Cl[sub 2] in an electrolyte solution comprised of concentrated HCl and H[sub 2]O. The mercurous ions in solution are then electrolytically reduced and plated onto a cathode wire producing the required, pre-determined quantity of Hg. 1 fig.

  6. Printed circuit board impedance matching step for microwave (millimeter wave) devices

    DOE Patents [OSTI]

    Pao, Hsueh-Yuan; Aguirre, Jerardo; Sargis, Paul

    2013-10-01T23:59:59.000Z

    An impedance matching ground plane step, in conjunction with a quarter wave transformer section, in a printed circuit board provides a broadband microwave matching transition from board connectors or other elements that require thin substrates to thick substrate (>quarter wavelength) broadband microwave (millimeter wave) devices. A method of constructing microwave and other high frequency electrical circuits on a substrate of uniform thickness, where the circuit is formed of a plurality of interconnected elements of different impedances that individually require substrates of different thicknesses, by providing a substrate of uniform thickness that is a composite or multilayered substrate; and forming a pattern of intermediate ground planes or impedance matching steps interconnected by vias located under various parts of the circuit where components of different impedances are located so that each part of the circuit has a ground plane substrate thickness that is optimum while the entire circuit is formed on a substrate of uniform thickness.

  7. Decomposition of a Nonlinear Multivariate Function using the Heaviside Step Function

    E-Print Network [OSTI]

    Eisuke Chikayama

    2014-05-21T23:59:59.000Z

    Whereas the Dirac delta function introduced by P. A. M. Dirac in 1930 in his famous quantum mechanics text has been well studied, a not famous formula related to the delta function using the Heaviside step function in a single-variable form, also given in Dirac's text, has been poorly studied. We demonstrate the decomposition of a nonlinear multivariate function into a sum of integrals in which each integrand is composed of a derivative of the function and a direct product of Heaviside step functions. It is an extension of Dirac's single-variable form to that for multiple variables. Moreover, it remains mathematically equivalent to the definition of the Dirac delta function with multiple variables, and offers a mathematically unified expression.

  8. Magnetic modelling and tomography: First steps towards a consistent reconstruction of the solar corona

    E-Print Network [OSTI]

    T. Wiegelmann; B. Inhester

    2008-02-05T23:59:59.000Z

    We undertake a first attempt towards a consistent reconstruction of the coronal magnetic field and the coronal density structure. We consider a stationary solar corona which has to obey the equations of magnetohydrostatics. We solve these equations with help of a newly developed optimization scheme. As a first step we illustrate how tomographic information can be included into the reconstruction of coronal magnetic fields. In a second step we use coronal magnetic field information to improve the tomographic inversion process. As input the scheme requires magnetic field measurements on the photosphere from vector-magnetographs and the line-of-sight integrated density distribution from coronagraphs. We test our codes with well known analytic magnetohydrostatic equilibria and models. The program is planed for use within the STEREO mission.

  9. #WomenInSTEM: Stepping Stones From One Career to Another

    ScienceCinema (OSTI)

    Martin, Cheryl

    2014-11-24T23:59:59.000Z

    Meet Cheryl Martin, Acting Director of the Advanced Research Projects Agency for Energy (ARPA-E) and the latest profile in the Energy Department's #WomenInSTEM video series. Cheryl looks at transformational projects to explore the uncharted territories of energy technology to generate options for entirely new paths to create, store and use energy. There are many challenges to overcome in the energy field, and it's important to have a diverse set of voices in STEM careers to meet these demands. Cheryl recommends that young women include all the skills they have - those gained at formal jobs as well as through volunteering or nonprofit organizations - when they take their next career step. These skills form the stepping stones that lead from one career to the next. And with a solid grounding in STEM, the opportunities are endless.

  10. Leakage estimation of incompressible fluids in stepped labyrinth seals with swirl

    E-Print Network [OSTI]

    Waughtal, Scott Perry

    2012-06-07T23:59:59.000Z

    LEAKAGE ESTIMATION OF INCOMPRESSIBLE FLUIDS IN STEPPED LABYRINTH SEALS WITH SWIRL A Thesis by SCOTT PERRY WAUGHTAL Submitted to the Graduate C o l l e g e of Texas A&M U n i v e r s i t y i n p a r t i a l f u l f i l l m e n... t of the requirement f o r the degree of MASTER OF SCIENCE December 1986 Major Su b j e c t : Mechanical E n g i n e e r i n g LEAKAGE ESTIMATION OF INCOMPRESSIBLE FLUIDS IN STEPPED LABYRINTH SEALS WITH SWIRL A T h e s i s by S c o t t W a u g h t a l A p p r...

  11. Non-equilibrium coherent vortex states and subharmonic giant Shapiro steps in Josephson junction arrays

    E-Print Network [OSTI]

    Daniel Domínguez; Jorge V. José

    1994-07-11T23:59:59.000Z

    This is a review of recent work on the dynamic response of Josephson junction arrays driven by dc and ac currents. The arrays are modeled by the resistively shunted Josephson junction model, appropriate for proximity effect junctions, including self-induced magnetic fields as well as disorder. The relevance of the self-induced fields is measured as a function of a parameter $\\kappa=\\lambda_L/a$, with $\\lambda_L$ the London penetration depth of the arrays, and $a$ the lattice spacing. The transition from Type II ($\\kappa>1$) to Type I ($\\kappa <1$) behavior is studied in detail. We compare the results for models with self, self+nearest-neighbor, and full inductance matrices. In the $\\kappa=\\infty$ limit, we find that when the initial state has at least one vortex-antivortex pair, after a characteristic transient time these vortices unbind and {\\it radiate} other vortices. These radiated vortices settle into a parity-broken, time-periodic, {\\em axisymmetric coherent vortex state} (ACVS), characterized by alternate rows of positive and negative vortices lying along a tilted axis. The ACVS produces subharmonic steps in the current voltage (IV) characteristics, typical of giant Shapiro steps. For finite $\\kappa$ we find that the IV's show subharmonic giant Shapiro steps, even at zero external magnetic field. We find that these subharmonic steps are produced by a whole family of coherent vortex oscillating patterns, with their structure changing as a function of $\\kappa$. In general, we find that these patterns are due to a break down of translational invariance produced, for example, by disorder or antisymmetric edge-fields. The zero field case results are in good qualitative agreement with experiments

  12. 5 Steps to Making Your Windows More Energy Efficient | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels DataCombinedDepartment2015 Information Management25thDepartmentSteps to Making

  13. Process and apparatus for obtaining samples of liquid and gas from soil

    DOE Patents [OSTI]

    Rossabi, J.; May, C.P.; Pemberton, B.E.; Shinn, J.; Sprague, K.

    1999-03-30T23:59:59.000Z

    An apparatus and process for obtaining samples of liquid and gas from subsurface soil is provided having filter zone adjacent an external expander ring. The expander ring creates a void within the soil substrate which encourages the accumulation of soil-borne fluids. The fluids migrate along a pressure gradient through a plurality of filters before entering a first chamber. A one-way valve regulates the flow of fluid into a second chamber in further communication with a collection tube through which samples are collected at the surface. A second one-way valve having a reverse flow provides additional communication between the chambers for the pressurized cleaning and back-flushing of the apparatus. 8 figs.

  14. An Ad-Hoc Method for Obtaining chi**2 Values from Unbinned Maximum Likelihood Fits

    E-Print Network [OSTI]

    M. Williams; C. A. Meyer

    2008-06-30T23:59:59.000Z

    A common goal in an experimental physics analysis is to extract information from a reaction with multi-dimensional kinematics. The preferred method for such a task is typically the unbinned maximum likelihood method. In fits using this method, the likelihood is a goodness-of-fit quantity in that it effectively discriminates between available hypotheses; however, it does not provide any information as to how well the best hypothesis describes the data. In this paper, we present an {\\em ad-hoc} procedure for obtaining chi**2/n.d.f. values from unbinned maximum likelihood fits. This method does not require binning the data, making it very applicable to multi-dimensional problems.

  15. Characterization of new corrosion resistant nickel-zinc-phosphorus alloys obtained by electrodeposition

    SciTech Connect (OSTI)

    Swathirajan, S.; Mikhail, Y.M. (Physical Chemistry Dept., General Motors Research Labs., Warren, MI (US))

    1989-08-01T23:59:59.000Z

    The authors discuss the electrodeposition of a family of NiZnP coatings studied at a rotating cylinder electrode by varying the temperature (45{sup 0}-80{sup 0}C) and the applied current density (0.03-0.95 A/cm/sup 2/). Two of the coatings were nickel-rich, two were zinc-rich, and a fifth coating had approximately equal amounts of Ni and Zn. The coatings were characterized using SEM/EDX and Auger depth profile techniques. A Ni-rich alloy with a supersaturated amount of zinc and the approximate composition 59Ni-39Zn-2P was obtained at all temperatures in the high speed electrodeposition current density range 0.6-1.0 A/cm/sup 2/. The supersaturated alloy could be deposited at current efficiencies higher than 80% at all temperatures. The corrosion rate of this coating was the lowest among the various NiZnP coatings.

  16. Towards obtaining Green functions for a Casimir cavity in de Sitter spacetime

    E-Print Network [OSTI]

    Giampiero Esposito; George M. Napolitano

    2014-12-02T23:59:59.000Z

    Recent work in the literature has studied rigid Casimir cavities in a weak gravitational field, or in de Sitter spacetime, or yet other spacetime models. The present review paper studies the difficult problem of direct evaluation of scalar Green functions for a Casimir-type apparatus in de Sitter spacetime. Working to first order in the small parameter of the problem, i.e. twice the gravity acceleration times the plates' separation divided by the speed of light in vacuum, suitable coordinates are considered for which the differential equations obeyed by the zeroth- and first-order Green functions can be solved in terms of special functions. This result can be used, in turn, to obtain, via the point-split method, the regularized and renormalized energy-momentum tensor both in the scalar case and in the physically more relevant electromagnetic case.

  17. Quantum correlations in bulk properties of solids obtained from neutron scattering

    E-Print Network [OSTI]

    Ben-Qiong Liu; Lian-Ao Wu; Guo-Mo Zeng; Jian-Ming Song; Wei Luo; Yang Lei; Guang-Ai Sun; Bo Chen; Shu-Ming Peng

    2014-07-02T23:59:59.000Z

    We demonstrate that inelastic neutron scattering technique can be used to indirectly detect and measure the macroscopic quantum correlations quantified by both entanglement and discord in a quantum magnetic material, VODPO4 . 1D2O. The amount of quantum correlations is obtained 2 by analyzing the neutron scattering data of magnetic excitations in isolated V4+ spin dimers. Our quantitative analysis shows that the critical temperature of this material can reach as high as Tc = 82.5 K, where quantum entanglement drops to zero. Significantly, quantum discord can even survive at Tc = 300 K and may be used in room temperature quantum devices. Taking into account the spin-orbit (SO) coupling, we also predict theoretically that entanglement can be significantly enhanced and the critical temperature Tc increases with the strength of spin-orbit coupling.

  18. Characterization of measurement uncertainties using the correlations between local outcomes obtained from maximally entangled pairs

    E-Print Network [OSTI]

    Shota Kino; Taiki Nii; Holger F. Hofmann

    2015-02-23T23:59:59.000Z

    Joint measurements of non-commuting observables are characterized by unavoidable measurement uncertainties that can be described in terms of the error statistics for input states with well-defined values for the target observables. However, a complete characterization of measurement errors must include the correlations between the errors of the two observables. Here, we show that these correlations appear in the experimentally observable measurement statistics obtained by performing the joint measurement on maximally entangled pairs. For two-level systems, the results indicate that quantum theory requires imaginary correlations between the measurement errors of X and Y since these correlations are represented by the operator product XY=iZ in the measurement operators. Our analysis thus reveals a directly observable consequence of non-commutativity in the statistics of quantum measurements.

  19. Process and apparatus for obtaining samples of liquid and gas from soil

    DOE Patents [OSTI]

    Rossabi, Joseph (105 Michael Ct., Aiken, SC 29801); May, Christopher P. (5002 Hesperus Dr., Columbia, MD 21044); Pemberton, Bradley E. (131 Glencarin Dr., Aiken, SC 29803); Shinn, Jim (Box 65, RFD. #1, South Royalton, VT 05068); Sprague, Keith (Box 234 Rte. 14, Brookfield, VT 05036)

    1999-01-01T23:59:59.000Z

    An apparatus and process for obtaining samples of liquid and gas from subsurface soil is provided having filter zone adjacent an external expander ring. The expander ring creates a void within the soil substrate which encourages the accumulation of soil-borne fluids. The fluids migrate along a pressure gradient through a plurality of filters before entering a first chamber. A one-way valve regulates the flow of fluid into a second chamber in further communication with a collection tube through which samples are collected at the surface. A second one-way valve having a reverse flow provides additional communication between the chambers for the pressurized cleaning and back-flushing of the apparatus.

  20. Optical properties of ITO films obtained by high-frequency magnetron sputtering with accompanying ion treatment

    SciTech Connect (OSTI)

    Krylov, P. N., E-mail: ftt@uni.udm.ru; Zakirova, R. M.; Fedotova, I. V. [Udmurt State University (Russian Federation)] [Udmurt State University (Russian Federation)

    2013-10-15T23:59:59.000Z

    A variation in the properties of indium-tin-oxide (ITO) films obtained by the method of reactive magnetron sputtering with simultaneous ion treatment is reported. The ITO films feature the following parameters in the optical range of 450-1100 nm: a transmission coefficient of 80%, band gap of 3.50-3.60 eV, and a refractive index of 1.97-2.06. All characteristics of the films depend on the ion-treatment current. The latter, during the course of deposition, reduces the resistivity of the ITO films with the smallest value of the resistivity being equal to 2 Multiplication-Sign 10{sup -3} {Omega} cm. The degradation of films with a high resistivity when kept in air is observed.

  1. Computing single step operators of logic programming in radial basis function neural networks

    SciTech Connect (OSTI)

    Hamadneh, Nawaf; Sathasivam, Saratha; Choon, Ong Hong [School of Mathematical Sciences, Universiti Sains Malaysia, 11800 USM, Penang (Malaysia)

    2014-07-10T23:59:59.000Z

    Logic programming is the process that leads from an original formulation of a computing problem to executable programs. A normal logic program consists of a finite set of clauses. A valuation I of logic programming is a mapping from ground atoms to false or true. The single step operator of any logic programming is defined as a function (T{sub p}:I?I). Logic programming is well-suited to building the artificial intelligence systems. In this study, we established a new technique to compute the single step operators of logic programming in the radial basis function neural networks. To do that, we proposed a new technique to generate the training data sets of single step operators. The training data sets are used to build the neural networks. We used the recurrent radial basis function neural networks to get to the steady state (the fixed point of the operators). To improve the performance of the neural networks, we used the particle swarm optimization algorithm to train the networks.

  2. Multi-step process for concentrating magnetic particles in waste sludges

    DOE Patents [OSTI]

    Watson, J.L.

    1990-07-10T23:59:59.000Z

    This invention involves a multi-step, multi-force process for dewatering sludges which have high concentrations of magnetic particles, such as waste sludges generated during steelmaking. This series of processing steps involves (1) mixing a chemical flocculating agent with the sludge; (2) allowing the particles to aggregate under non-turbulent conditions; (3) subjecting the mixture to a magnetic field which will pull the magnetic aggregates in a selected direction, causing them to form a compacted sludge; (4) preferably, decanting the clarified liquid from the compacted sludge; and (5) using filtration to convert the compacted sludge into a cake having a very high solids content. Steps 2 and 3 should be performed simultaneously. This reduces the treatment time and increases the extent of flocculation and the effectiveness of the process. As partially formed aggregates with active flocculating groups are pulled through the mixture by the magnetic field, they will contact other particles and form larger aggregates. This process can increase the solids concentration of steelmaking sludges in an efficient and economic manner, thereby accomplishing either of two goals: (a) it can convert hazardous wastes into economic resources for recycling as furnace feed material, or (b) it can dramatically reduce the volume of waste material which must be disposed. 7 figs.

  3. The impact of equivalence ratio oscillations on combustion dynamics in a backward-facing step combustor

    SciTech Connect (OSTI)

    Murat Altay, H.; Speth, Raymond L.; Hudgins, Duane E.; Ghoniem, Ahmed F. [Massachusetts Institute of Technology, Department of Mechanical Engineering, Cambridge, MA 02139 (United States)

    2009-11-15T23:59:59.000Z

    The combustion dynamics of propane-air flames are investigated in an atmospheric pressure, atmospheric inlet temperature, lean, premixed backward-facing step combustor. We modify the location of the fuel injector to examine the impact of equivalence ratio oscillations arriving at the flame on the combustion dynamics. Simultaneous pressure, velocity, heat-release rate and equivalence ratio measurements and high-speed video from the experiments are used to identify and characterize several distinct operating modes. When the fuel is injected far upstream from the step, the equivalence ratio arriving at the flame is steady and the combustion dynamics are controlled only by flame-vortex interactions. In this case, different dynamic regimes are observed depending on the operating parameters. When the fuel is injected close to the step, the equivalence ratio arriving at the flame exhibits oscillations. In the presence of equivalence ratio oscillations, the measured sound pressure level is significant across the entire range of lean mean equivalence ratios even if the equivalence ratio oscillations arriving at the flame are out-of-phase with the pressure oscillations. The combustion dynamics are governed primarily by the flame-vortex interactions, while the equivalence ratio oscillations have secondary effects. The equivalence ratio oscillations could generate variations in the combustion dynamics in each cycle under some operating conditions, destabilize the flame at the entire range of the lean equivalence ratios, and increase the value of the mean equivalence ratio at the lean blowout limit. (author)

  4. Multi-step process for concentrating magnetic particles in waste sludges

    DOE Patents [OSTI]

    Watson, John L. (Rolla, MO)

    1990-01-01T23:59:59.000Z

    This invention involves a multi-step, multi-force process for dewatering sludges which have high concentrations of magnetic particles, such as waste sludges generated during steelmaking. This series of processing steps involves (1) mixing a chemical flocculating agent with the sludge; (2) allowing the particles to aggregate under non-turbulent conditions; (3) subjecting the mixture to a magnetic field which will pull the magnetic aggregates in a selected direction, causing them to form a compacted sludge; (4) preferably, decanting the clarified liquid from the compacted sludge; and (5) using filtration to convert the compacted sludge into a cake having a very high solids content. Steps 2 and 3 should be performed simultaneously. This reduces the treatment time and increases the extent of flocculation and the effectiveness of the process. As partially formed aggregates with active flocculating groups are pulled through the mixture by the magnetic field, they will contact other particles and form larger aggregates. This process can increase the solids concentration of steelmaking sludges in an efficient and economic manner, thereby accomplishing either of two goals: (a) it can convert hazardous wastes into economic resources for recycling as furnace feed material, or (b) it can dramatically reduce the volume of waste material which must be disposed.

  5. Composition and microstructure of zirconium and hafnium germanates obtained by different chemical routes

    SciTech Connect (OSTI)

    Utkin, A.V., E-mail: utkinalex@hotmail.com; Prokip, V.E.; Baklanova, N.I.

    2014-01-15T23:59:59.000Z

    The phase composition and morphology of zirconium and hafnium germanates synthesized by ceramic and co-precipitation routes were studied. The products were characterized using high-temperature X-ray diffraction analysis (XRD), Raman spectroscopy, scanning electron microscopy (SEM) and thermal (TG/DTA) analysis. To investigate the phase composition and stoichiometry of compounds the unit cell parameters were refined by full-profile Rietveld XRD analysis. The morphology of products and its evolution during high-temperature treatment was examined by SEM analysis. It was stated that there is the strong dependence of the phase composition and morphology of products on the preparation route. The ceramic route requires a multi-stage high-temperature treatment to obtain zirconium and hafnium germanates of 95% purity or more. Also, there are strong diffusion limitations to obtain hafnium germanate Hf{sub 3}GeO{sub 8} by ceramic route. On the contrary, the co-precipitation route leads to the formation of nanocrystalline single phase germanates of stoichiometric composition at a relatively low temperatures (less than 1000 °C). The results of quantitative XRD analysis showed the hafnium germanates are stoichiometric compounds in contrast to zirconium germanates that form a set of solid solutions. This distinction may be related to the difference in the ion radii of Zr and Hf. - Graphical abstract: The phase composition and morphology of zirconium and hafnium germanates synthesized by ceramic and co-precipitation routes were studied. It was stated that there is the strong dependence of the phase composition and morphology of products on the preparation route. Display Omitted - Highlights: • Zr and Hf germanates were synthesized by ceramic and co-precipitation routes. • The morphology of products depends on the synthesis parameters. • Zirconium germanates forms a set of solid solutions. • Hafnium germanates are stoichiometric compounds.

  6. Development of High-Temperature Air Braze Filler Metals for Use in Two-Step Joining and Sealing Processes

    SciTech Connect (OSTI)

    Hardy, John S.; Weil, K. Scott

    2006-11-02T23:59:59.000Z

    Reactive air brazing (RAB) creates metallic braze joints between oxide surfaces. RAB can be performed in air and can undergo subsequent operation at temperatures up to 900ºC in oxidizing environments. This makes RAB an attractive joining method for creating seals in solid oxide fuel cells (SOFCs) which operate at temperatures between 700 and 850ºC and comprise cathode materials which are intolerant of reducing environments. Many planar SOFC designs require a two-step sealing process. Thus the seal formed during the first step must not melt or soften at the firing temperature of the second step, otherwise its integrity could be compromised. The goal of this study is to investigate the effects of adding Pd to a Ag-CuO RAB to produce a braze composition with a melting temperature high enough that it might be used in the first step of a two-step sealing process with unmodified Ag-CuO RAB used in the second step, thereby making possible a two step reactive air brazing process. Yttria-stabilized zirconia (YSZ) is the substrate of choice in this study in order to simulate the initial sealing step in planar SOFCs which often involves sealing a yttrium-stabilized zirconia (YSZ) electrolyte to a metallic support frame. RAB compositions containing a 15 mol% Pd : 85 mol% Ag alloy with 8 mol% Cu added were found to provide the best combination of wettability, mechanical strength, and melting characteristics for brazing YSZ.

  7. Deformation and Scattering in Graphene over Substrate Steps T. Low, V. Perebeinos, J. Tersoff, and Ph. Avouris

    E-Print Network [OSTI]

    Perebeinos, Vasili

    Deformation and Scattering in Graphene over Substrate Steps T. Low, V. Perebeinos, J. Tersoff October 2011; published 1 March 2012) The electrical properties of graphene depend sensitively on the substrate. For example, recent measurements of epitaxial graphene on SiC show resistance arising from steps

  8. Step-edge-induced resistance anisotropy in quasi-free-standing bilayer chemical vapor deposition graphene on SiC

    SciTech Connect (OSTI)

    Ciuk, Tymoteusz [Institute of Electronic Materials Technology, Wolczynska 133, 01-919 Warsaw (Poland); Institute of Microelectronics and Optoelectronics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw (Poland); Cakmakyapan, Semih; Ozbay, Ekmel [Department of Electrical and Electronics Engineering, Department of Physics, Nanotechnology Research Center, Bilkent University, 06800 Bilkent, Ankara (Turkey); Caban, Piotr; Grodecki, Kacper; Pasternak, Iwona; Strupinski, Wlodek, E-mail: wlodek.strupinski@itme.edu.pl [Institute of Electronic Materials Technology, Wolczynska 133, 01-919 Warsaw (Poland); Krajewska, Aleksandra [Institute of Electronic Materials Technology, Wolczynska 133, 01-919 Warsaw (Poland); Institute of Optoelectronics, Military University of Technology, Gen. S. Kaliskiego 2, 00-908 Warsaw (Poland); Szmidt, Jan [Institute of Microelectronics and Optoelectronics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw (Poland)

    2014-09-28T23:59:59.000Z

    The transport properties of quasi-free-standing (QFS) bilayer graphene on SiC depend on a range of scattering mechanisms. Most of them are isotropic in nature. However, the SiC substrate morphology marked by a distinctive pattern of the terraces gives rise to an anisotropy in graphene's sheet resistance, which may be considered an additional scattering mechanism. At a technological level, the growth-preceding in situ etching of the SiC surface promotes step bunching which results in macro steps ?10?nm in height. In this report, we study the qualitative and quantitative effects of SiC steps edges on the resistance of epitaxial graphene grown by chemical vapor deposition. We experimentally determine the value of step edge resistivity in hydrogen-intercalated QFS-bilayer graphene to be ?190???m for step height h{sub S}?=?10?nm and provide proof that it cannot originate from mechanical deformation of graphene but is likely to arise from lowered carrier concentration in the step area. Our results are confronted with the previously reported values of the step edge resistivity in monolayer graphene over SiC atomic steps. In our analysis, we focus on large-scale, statistical properties to foster the scalable technology of industrial graphene for electronics and sensor applications.

  9. Step Up & Scale Down Information for Agents 1 Texas A&M AgriLife Extension Service Acknowledgments

    E-Print Network [OSTI]

    Step Up & Scale Down ­ Information for Agents 1 Texas A&M AgriLife Extension Service Editor, Family Development & Resource Management Jennifer Leone, East Region Office Associate #12;Step Up Up & Scale Down is a 12-week educational program based on the USDA 2010 Dietary Guidelines, which

  10. NiO-silica based nanostructured materials obtained by microemulsion assisted sol-gel procedure

    SciTech Connect (OSTI)

    Mihaly, M.; Comanescu, A.F. [University POLITEHNICA Bucharest, Faculty of Applied Chemistry and Materials Science, 1 Polizu, 011061 Bucharest (Romania)] [University POLITEHNICA Bucharest, Faculty of Applied Chemistry and Materials Science, 1 Polizu, 011061 Bucharest (Romania); Rogozea, A.E. [ILIE MURGULESCU Institute of Physical Chemistry of the Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest (Romania)] [ILIE MURGULESCU Institute of Physical Chemistry of the Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest (Romania); Vasile, E. [METAV Research and Development, 31 C.A. Rosetti, 020011 Bucharest (Romania)] [METAV Research and Development, 31 C.A. Rosetti, 020011 Bucharest (Romania); Meghea, A., E-mail: a.meghea@gmail.com [University POLITEHNICA Bucharest, Faculty of Applied Chemistry and Materials Science, 1 Polizu, 011061 Bucharest (Romania)

    2011-10-15T23:59:59.000Z

    Graphical abstract: TEM micrograph of NiO/SiO{sub 2} nanoparticles. Highlights: {yields} Microemulsion assisted sol-gel procedure for NiO silica nanomaterials synthesis. {yields} Controlling the size and shape of nanoparticles and avoiding their aggregation. {yields} Narrow band-gap semiconductors (energies <3 eV) absorbing VIS or near-UV light biologically and chemically inert semiconductors entrapping/coating in silica network. {yields} Low cost as the microemulsion is firstly used in water metallic cation extraction. -- Abstract: NiO-silica based materials have been synthesized by microemulsion assisted sol-gel procedure. The versatility of these soft nanotechnology techniques has been exploited in order to obtain different types of nanostructures, such as NiO nanoparticles, NiO silica coated nanoparticles and NiO embedded in silica matrix. These materials have been characterized by adequate structural and morphology techniques: DLS, HR-TEM/SAED, BET, AFM. Optical and semiconducting properties (band-gap values) of the synthesized materials have been quantified by means of VIS-NIR diffuse reflectance spectra, thus demonstrating their applicative potential in various electron transfer phenomena such as photocatalysis, electrochromic thin films, solid oxide fuel cells.

  11. The component groups structure of DPPC bilayers obtained by specular neutron reflectometry

    E-Print Network [OSTI]

    Michal Beli?ka; Yuri Gerelli; Norbert Ku?erka; Giovanna Fragneto

    2014-12-16T23:59:59.000Z

    Specular neutron reflectometry (SNR) was measured on a system of a floating bilayer consisting of 1,2-dipalmitoyl-d62-\\textit{sn}-glycero-3-phosphocholine (d62-diC16:0PC) deposited over a 1,2-dibehenoyl-\\textit{sn}-glycero-3-phosphocholine (diC22:0PC) bilayer at 25 and 55 {\\deg}C. The internal structure of lipid bilayers was described by a one dimensional scattering length density profile (SLDP) model, originally developed for the evaluation of small angle scattering data. The corresponding model reflectivity curves successfully describe the experimental reflectivity curves of a supported bilayer in the gel phase and a system of a floating bilayer in the liquid crystalline phase. The reflectivity data from the supported bilayer were evaluated individually and served further as an input by the data treatment of floating bilayer reflectivity curves. The results yield internal structure of a deposited and floating bilayer on the level of component groups of lipid molecules. The obtained structure of the floating d62-diC16:0PC bilayer displays high resemblance to the bilayer structure in the form of unilamellar vesicles, however, simultaneously it shows rate of fluctuations in comparison to unilamellar vesicle bilayers.

  12. Assessment of national systems for obtaining local acceptance of waste management siting and routing activities

    SciTech Connect (OSTI)

    Paige, H.W.; Lipman, D.S.; Owens, J.E.

    1980-07-01T23:59:59.000Z

    There is a rich mixture of formal and informal approaches being used in our sister nuclear democracies in their attempts to deal with the difficulties of obtaining local acceptance for siting of waste management facilities and activities. Some of these are meeting with a degree of success not yet achieved in the US. Although this survey documents and assesses many of these approaches, time did not permit addressing in any detail their relevance to common problems in the US. It would appear the US could benefit from a periodic review of the successes and failures of these efforts, including analysis of their applicability to the US system. Of those countries (Germany, Sweden, Switzerland, Japan, Belgium, and the US) who are working to a time table for the preparation of a high-level waste (HLW) repository, Germany is the only country to have gained local siting acceptance for theirs. With this (the most difficult of siting problems) behind them they appear to be in the best overall condition relative to waste management progress and plans. This has been achieved without a particularly favorable political structure, made up for by determination on the part of the political leadership. Of the remaining three countries studied (France, UK and Canada) France, with its AVM production facility, is clearly the world leader in the HLW immobilization aspect of waste management. France, Belgium and the UK appear to have the least favorable political structures and environments for arriving at waste management decisions. US, Switzerland and Canada appear to have the least favorable political structures and environments for arriving at waste management decisions.

  13. Numerical analysis of liquid-solids suspension velocities and concentrations obtained by NMR imaging.

    SciTech Connect (OSTI)

    Ding, J.; Lyczkowski, R. W.; Sha, W. T.; Altobelli, S. A.; Fukushima, E.; Lovelace Medical Foundation

    1993-01-01T23:59:59.000Z

    Analyses of some of the steady-state, fully developed, and isothermal carrier fluid velocity and solids concentration data of Altobelli et al. and Sinton and Chow obtained using three-dimensional time-of-flight nuclear magnetic (NMR) imaging techniques are presented. NMR imaging offers powerful techniques to nonintrusively determine three-dimensional time-dependent velocity and concentration fields to assist development and validation of the constitutive models and the computer programs describing concentrated suspensions. These experiments were carefully performed and probably represent the best available open literature data of their kind. COMMIX-M, a three-dimensional transient and steady-state computer program written in Cartesian and cylindrical coordinates, has been used to analyze the NMR data. This computer program is capable of analyzing multiphase flow and heat transfer and utilizes the separate phases model wherein each phase has its own mass, momentum, and energy equations. COMMIX-M contains constitutive relationships for interfacial drag, solids viscosities and stresses to describe the solids rheology, and virtual mass and shear lift forces extended to a continuum from the single particle literature. Also included is a solids partial-slip boundary condition to allow nonzero tangential velocity at the tube walls. This computer program is being developed at Argonne National Laboratory for application to test various interphase interaction models and to predict design and processing of dense fluid-solids suspension systems. Comparisons of computed and measured concentration and velocity profiles provide some insights into the mechanisms governing the observed phenomena. Recommendations for model improvement are given. To the authors knowledge, these are the first such comparisons of theory and experiment

  14. Analysis of liquid-solids suspension velocities and concentrations obtained by NMR imaging

    SciTech Connect (OSTI)

    Ding, J.; Lyczkowski, R.W.; Sha, W.T. [Argonne National Lab., IL (United States); Altobelli, S.A.; Fukushima, E. [Lovelace Medical Foundation, Albuquerque, NM (United States)

    1992-09-01T23:59:59.000Z

    COMMIX-M, a three-dimensional transient and steady-state computer program written in Cartesian and cylindrical coordinates, has been developed by Argonne National Laboratory. This computer program is capable of analyzing multiphase flow and heat transfer and utilizes the separate phases model wherein each phase has its own mass, momentum, and energy equations. This computer program is in its early stages of development for application to test various interphase interaction models and to predict design and processing of dense fluid-solids suspension systems. COMMIX-M contains preliminary constitutive relationships for interfacial drag, solids viscosities and stresses to describe the solids rheology, and shear lift forces from the literature. Also included is a solids partial slip boundary condition to allow non-zero tangential velocity at the tube walls. Analyses of some of the steady-state, fully-developed isothermal carrier fluid velocity and solids concentration data of Altobelli et al. and Sinton and Chow are presented. These experimental data obtained using three-dimensional time-of-flight nuclear magnetic (NMR) imaging techniques were carefully performed and represent some of the best available open literature data of their kind. NMR imaging offers powerful techniques to non-intrusively determine three-dimensional time-dependent velocity and concentration fields to assist development and validation of the constitutive models and the computer programs describing concentrated suspensions. Analyses of these NMR data, together with comparisons of computed and measured concentration and velocity profiles provide some insights into the mechanisms governing the observed phenomena. Recommendations for future research are given. To the authors` knowledge, these are the first such comparisons of theory and experiment.

  15. Analysis of liquid-solids suspension velocities and concentrations obtained by NMR imaging

    SciTech Connect (OSTI)

    Ding, J.; Lyczkowski, R.W.; Sha, W.T. (Argonne National Lab., IL (United States)); Altobelli, S.A.; Fukushima, E. (Lovelace Medical Foundation, Albuquerque, NM (United States))

    1992-09-01T23:59:59.000Z

    COMMIX-M, a three-dimensional transient and steady-state computer program written in Cartesian and cylindrical coordinates, has been developed by Argonne National Laboratory. This computer program is capable of analyzing multiphase flow and heat transfer and utilizes the separate phases model wherein each phase has its own mass, momentum, and energy equations. This computer program is in its early stages of development for application to test various interphase interaction models and to predict design and processing of dense fluid-solids suspension systems. COMMIX-M contains preliminary constitutive relationships for interfacial drag, solids viscosities and stresses to describe the solids rheology, and shear lift forces from the literature. Also included is a solids partial slip boundary condition to allow non-zero tangential velocity at the tube walls. Analyses of some of the steady-state, fully-developed isothermal carrier fluid velocity and solids concentration data of Altobelli et al. and Sinton and Chow are presented. These experimental data obtained using three-dimensional time-of-flight nuclear magnetic (NMR) imaging techniques were carefully performed and represent some of the best available open literature data of their kind. NMR imaging offers powerful techniques to non-intrusively determine three-dimensional time-dependent velocity and concentration fields to assist development and validation of the constitutive models and the computer programs describing concentrated suspensions. Analyses of these NMR data, together with comparisons of computed and measured concentration and velocity profiles provide some insights into the mechanisms governing the observed phenomena. Recommendations for future research are given. To the authors' knowledge, these are the first such comparisons of theory and experiment.

  16. Development of a general method for obtaining the geometry of microfluidic networks

    SciTech Connect (OSTI)

    Razavi, Mohammad Sayed, E-mail: m.sayedrazavi@gmail.com; Salimpour, M. R. [Department of Mechanical Engineering, Isfahan University of Technology, Isfahan 84156-83111 (Iran, Islamic Republic of)] [Department of Mechanical Engineering, Isfahan University of Technology, Isfahan 84156-83111 (Iran, Islamic Republic of); Shirani, Ebrahim [Department of Engineering, Foolad Institute of Technology, FooladShahr 84916-63763, Isfahan (Iran, Islamic Republic of)] [Department of Engineering, Foolad Institute of Technology, FooladShahr 84916-63763, Isfahan (Iran, Islamic Republic of)

    2014-01-15T23:59:59.000Z

    In the present study, a general method for geometry of fluidic networks is developed with emphasis on pressure-driven flows in the microfluidic applications. The design method is based on general features of network's geometry such as cross-sectional area and length of channels. Also, the method is applicable to various cross-sectional shapes such as circular, rectangular, triangular, and trapezoidal cross sections. Using constructal theory, the flow resistance, energy loss and performance of the network are optimized. Also, by this method, practical design strategies for the fabrication of microfluidic networks can be improved. The design method enables rapid prediction of fluid flow in the complex network of channels and is very useful for improving proper miniaturization and integration of microfluidic networks. Minimization of flow resistance of the network of channels leads to universal constants for consecutive cross-sectional areas and lengths. For a Y-shaped network, the optimal ratios of consecutive cross-section areas (A{sub i+1}/A{sub i}) and lengths (L{sub i+1}/L{sub i}) are obtained as A{sub i+1}/A{sub i} = 2{sup ?2/3} and L{sub i+1}/L{sub i} = 2{sup ?1/3}, respectively. It is shown that energy loss in the network is proportional to the volume of network. It is also seen when the number of channels is increased both the hydraulic resistance and the volume occupied by the network are increased in a similar manner. Furthermore, the method offers that fabrication of multi-depth and multi-width microchannels should be considered as an integral part of designing procedures. Finally, numerical simulations for the fluid flow in the network have been performed and results show very good agreement with analytic results.

  17. Treatment of methyl tert-butyl ether vapors in a biotrickling filters. 2. Analysis of the rate-limiting step and behavior under transient conditions

    SciTech Connect (OSTI)

    Fortin, N.Y.; Deshusses, M.A. [Univ. of California, Riverside, CA (United States). Dept. of Chemical and Environmental Engineering] [Univ. of California, Riverside, CA (United States). Dept. of Chemical and Environmental Engineering

    1999-09-01T23:59:59.000Z

    Detailed experiments were performed with gas phase biotrickling filters treating vapors of methyl tert-butyl ether (MTBE), a gasoline additive of great environmental concern. A particular emphasis was placed on the analysis of the rate-limiting step, and it was found that the process was mostly limited by the biological reaction rather than by mass transfer. Further experiments involved the study of the dynamic behavior of the biotrickling filters under simulated field conditions. In all cases, the biotrickling filters adapted rapidly to the new conditions, and new steady states were obtained within hours. The relevance of the results and the implications as far as implementation of biotrickling filters for field MTBE treatment are discussed.

  18. Theoretical Investigation of the Enzymatic Phosphoryl Transfer of ?-phosphoglucomutase: Revisiting Both Steps of the Catalytic Cycle

    SciTech Connect (OSTI)

    Elsasser, Brigitta M.; Dohmeier-Fischer, Silvia; Fels, Gregor

    2012-07-12T23:59:59.000Z

    Enzyme catalyzed phosphate transfer is a part of almost all metabolic processes. Such reactions are of central importance for the energy balance in all organisms and play important roles in cellular control at all levels. Mutases transfer a phosphoryl group while nucleases cleave the phosphodiester linkages between two nucleotides. The subject of our present study is the Lactococcus lactis ?-phosphoglucomutase (?-PGM), which effectively catalyzes the interconversion of ?-D-glucose-1-phosphate (?-G1P) to ?- D-glucose-6-phosphate (?-G6P) and vice versa via stabile intermediate ?-D-glucose-1,6-(bis)phosphate (?-G1,6diP) in the presence of Mg2+. In this paper we revisited the reaction mechanism of the phosphoryl transfer starting from the bisphosphate ?-G1,6diP in both directions (toward ?-G1P and ?-G6P) combining docking techniques and QM/MM theoretical method at the DFT/PBE0 level of theory. In addition we performed NEB (nudged elastic band) and free energy calculations to optimize the path and to identify the transition states and the energies involved in the catalytic cycle. Our calculations reveal that both steps proceed via dissociative pentacoordinated phosphorane, which is not a stabile intermediate but rather a transition state. In addition to the Mg2+ ion, Ser114 and Lys145 also play important roles in stabilizing the large negative charge on the phosphate through strong coordination with the phosphate oxygens and guiding the phosphate group throughout the catalytic process. The calculated energy barrier of the reaction for the ?-G1P to ?-G1,6diP step is only slightly higher than for the ?-G1,6diP to ?-G6P step (16.10 kcal mol-1 versus 15.10 kcal mol-1) and is in excellent agreement with experimental findings (14.65 kcal mol-1).

  19. Real-time, single-step bioassay using nanoplasmonic resonator with ultra-high sensitivity

    DOE Patents [OSTI]

    Zhang, Xiang; Ellman, Jonathan A; Chen, Fanqing Frank; Su, Kai-Hang; Wei, Qi-Huo; Sun, Cheng

    2014-04-01T23:59:59.000Z

    A nanoplasmonic resonator (NPR) comprising a metallic nanodisk with alternating shielding layer(s), having a tagged biomolecule conjugated or tethered to the surface of the nanoplasmonic resonator for highly sensitive measurement of enzymatic activity. NPRs enhance Raman signals in a highly reproducible manner, enabling fast detection of protease and enzyme activity, such as Prostate Specific Antigen (paPSA), in real-time, at picomolar sensitivity levels. Experiments on extracellular fluid (ECF) from paPSA-positive cells demonstrate specific detection in a complex bio-fluid background in real-time single-step detection in very small sample volumes.

  20. Two-step behavior of initial oxidation at HfO{sub 2}/Si interface

    SciTech Connect (OSTI)

    Miyata, Noriyuki [MIRAI, Advanced Semiconductor Research Center, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8562 (Japan)

    2006-09-04T23:59:59.000Z

    In situ x-ray photoelectron spectroscopy revealed that initial Si oxidation at the HfO{sub 2}/Si(001) interface in O{sub 2} proceeds in a two-step manner with an initial slow stage followed by a fast one. This transition in the oxidation process is most likely caused by crystallization of the HfO{sub 2} film. The first stage at 400-600 deg. C exhibited postdeposition annealing conditions suitable for suppressing the interfacial Si oxide in a monolayer region.

  1. A strange weak value in spontaneous pair productions via a supercritical step potential

    E-Print Network [OSTI]

    Kazuhiro Yokota; Nobuyuki Imoto

    2012-08-24T23:59:59.000Z

    We consider a case where a weak value is introduced as a physical quantity rather than an average of weak measurements. The case we treat is a time evolution of a particle by 1+1 dimensional Dirac equation. Particularly in a spontaneous pair production via a supercritical step potential, a quantitative explanation can be given by a weak value for the group velocity of the particle. We also show the condition for the pair production (supercriticality) corresponds to the condition when the weak value takes a strange value (superluminal velocity).

  2. Shapiro steps and stimulated radiation of electromagnetic waves due to Josephson oscillations in layered superconductors.

    SciTech Connect (OSTI)

    Bulaevskii, L. N.; Kosehlev, A. E.; Tachiki, M.; Materials Science Division; LANL; Univ. of Tokyo

    2008-01-01T23:59:59.000Z

    Single crystals of layered high-temperature superconductors intrinsically behave as stacks of Josephson junctions. We analyze response of current-biased stack of intrinsic junctions to irradiation by the external electromagnetic (em) wave. In addition to well-known Shapiro steps in the current-voltage characteristics, irradiation promotes stimulated radiation which adds with spontaneous Josephson radiation from the crystal. Such enhancement of radiation from current-biased crystal may be used for amplification of em waves. Irradiation also facilitates synchronization of Josephson oscillations in all intrinsic Josephson junctions of a single crystal as well as oscillations in intrinsic junctions of different crystals.

  3. Modeling and experimental characterization of stepped and v-shaped (311) defects in silicon

    SciTech Connect (OSTI)

    Marqués, Luis A., E-mail: lmarques@ele.uva.es; Aboy, María [Departamento de Electrónica, Universidad de Valladolid, E.T.S.I. de Telecomunicación, 47011 Valladolid (Spain); Dudeck, Karleen J.; Botton, Gianluigi A. [Department of Materials Science and Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L7 (Canada); Knights, Andrew P. [Department of Engineering Physics, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L7 (Canada); Gwilliam, Russell M. [Surrey Ion Beam Centre, University of Surrey, Guildford, Surrey GU2 7XH (United Kingdom)

    2014-04-14T23:59:59.000Z

    We propose an atomistic model to describe extended (311) defects in silicon. It is based on the combination of interstitial and bond defect chains. The model is able to accurately reproduce not only planar (311) defects but also defect structures that show steps, bends, or both. We use molecular dynamics techniques to show that these interstitial and bond defect chains spontaneously transform into extended (311) defects. Simulations are validated by comparing with precise experimental measurements on actual (311) defects. The excellent agreement between the simulated and experimentally derived structures, regarding individual atomic positions and shape of the distinct structural (311) defect units, provides strong evidence for the robustness of the proposed model.

  4. Numerical simualtion of mixed convection over a three-dimensional horizontal backward-facing step

    E-Print Network [OSTI]

    Barbosa Saldana, Juan Gabriel

    2005-08-29T23:59:59.000Z

    architecture (SMA)???????????.??????91 6.3 Application-programming interface for OpenMP????????????93 6.4 Fork-join model execution for OpenMP???????????????...94 6.5 Flow chart for the numerical d code??????..??????????...97 6.6 Collection of planes... distribution for Ri=1 at different x-, y- and z-constant planes?..140 7.17 Temperature distribution for Ri=0 at different x-, y- and z-constant planes?..141 7.18 Temperature contours inside the backward-facing step for different thermal conductivities...

  5. Efficient one-step generation of large cluster states with solid-state circuits

    SciTech Connect (OSTI)

    You, J. Q. [Department of Physics and Surface Physics Laboratory (National Key Laboratory), Fudan University, Shanghai 200433 (China); Frontier Research System, The Institute of Physical and Chemical Research (RIKEN), Wako-shi 351-0198 (Japan); Wang, Xiang-bin [Frontier Research System, The Institute of Physical and Chemical Research (RIKEN), Wako-shi 351-0198 (Japan); CREST, Japan Science and Technology Agency (JST), Kawaguchi, Saitama 332-0012 (Japan); Department of Physics, Tsinghua University, Beijing 100084 (China); Tanamoto, Tetsufumi [Corporate R and D Center, Toshiba Corporation, Saiwai-ku, Kawasaki 212-8582 (Japan); Nori, Franco [Frontier Research System, The Institute of Physical and Chemical Research (RIKEN), Wako-shi 351-0198 (Japan); Center for Theoretical Physics, Physics Department, Center for the Study of Complex Systems, University of Michigan, Ann Arbor, Michigan 48109-1040 (United States)

    2007-05-15T23:59:59.000Z

    Highly entangled states called cluster states are a universal resource for measurement-based quantum computing (QC). Here we propose an efficient method for producing large cluster states using superconducting quantum circuits. We show that a large cluster state can be efficiently generated in just one step by turning on the interqubit coupling for a short time. Because the interqubit coupling is only switched on during the time interval for generating the cluster state, our approach is also convenient for preparing the initial state for each qubit and for implementing one-way QC via single-qubit measurements. Moreover, the cluster state is robust against parameter variations.

  6. Taking Steps to Make Energy Data More Accessible | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy Usage »of Energy StrainClient updateTRI-STATE GENERATION 1.Take aSteps to Make

  7. #WomenInSTEM: Stepping Stones From One Career to Another | Department of

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNG IHDR€ÍSolar Energy41 (Dollars and Sense Committee)Energy Stepping Stones

  8. Two-Step Process Converts Lignin into Simple Aromatic Compounds - Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism in Layeredof Energy Two CompaniesTwoInnovation Portal Two-Step

  9. Site-Specific Imaging of Elemental Steps in Dehydration of Diols on

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBi (2)SharingTiO2(110). | EMSL Imaging of Elemental Steps in

  10. Can bio-inspired information processing steps be realized as synthetic biochemical processes?

    E-Print Network [OSTI]

    Vladimir Privman; Evgeny Katz

    2014-11-07T23:59:59.000Z

    We consider possible designs and experimental realiza-tions in synthesized rather than naturally occurring bio-chemical systems of a selection of basic bio-inspired information processing steps. These include feed-forward loops, which have been identified as the most common information processing motifs in many natural pathways in cellular functioning, and memory-involving processes, specifically, associative memory. Such systems should not be designed to literally mimic nature. Rather, we can be guided by nature's mechanisms for experimenting with new information/signal processing steps which are based on coupled biochemical reactions, but are vastly simpler than natural processes, and which will provide tools for the long-term goal of understanding and harnessing nature's information processing paradigm. Our biochemical processes of choice are enzymatic cascades because of their compatibility with physiological processes in vivo and with electronics (e.g., electrodes) in vitro allowing for networking and interfacing of enzyme-catalyzed processes with other chemical and biochemical reactions. In addition to designing and realizing feed-forward loops and other processes, one has to develop approaches to probe their response to external control of the time-dependence of the input(s), by measuring the resulting time-dependence of the output. The goal will be to demonstrate the expected features, for example, the delayed response and stabilizing effect of the feed-forward loops.

  11. A Semi-Empirical Two Step Carbon Corrosion Reaction Model in PEM Fuel Cells

    SciTech Connect (OSTI)

    Young, Alan; Colbow, Vesna; Harvey, David; Rogers, Erin; Wessel, Silvia

    2013-01-01T23:59:59.000Z

    The cathode CL of a polymer electrolyte membrane fuel cell (PEMFC) was exposed to high potentials, 1.0 to 1.4 V versus a reversible hydrogen electrode (RHE), that are typically encountered during start up/shut down operation. While both platinum dissolution and carbon corrosion occurred, the carbon corrosion effects were isolated and modeled. The presented model separates the carbon corrosion process into two reaction steps; (1) oxidation of the carbon surface to carbon-oxygen groups, and (2) further corrosion of the oxidized surface to carbon dioxide/monoxide. To oxidize and corrode the cathode catalyst carbon support, the CL was subjected to an accelerated stress test cycled the potential from 0.6 VRHE to an upper potential limit (UPL) ranging from 0.9 to 1.4 VRHE at varying dwell times. The reaction rate constants and specific capacitances of carbon and platinum were fitted by evaluating the double layer capacitance (Cdl) trends. Carbon surface oxidation increased the Cdl due to increased specific capacitance for carbon surfaces with carbon-oxygen groups, while the second corrosion reaction decreased the Cdl due to loss of the overall carbon surface area. The first oxidation step differed between carbon types, while both reaction rate constants were found to have a dependency on UPL, temperature, and gas relative humidity.

  12. Stepping and crowding of molecular motors: statistical kinetics from an exclusion process perspective

    E-Print Network [OSTI]

    Luca Ciandrini; M. Carmen Romano; A. Parmeggiani

    2014-05-26T23:59:59.000Z

    Motor enzymes are remarkable molecular machines that use the energy derived from the hydrolysis of a nucleoside triphosphate to generate mechanical movement, achieved through different steps that constitute their kinetic cycle. These macromolecules, nowadays investigated with advanced experimental techniques to unveil their molecular mechanisms and the properties of their kinetic cycles, are implicated in many biological processes, ranging from biopolymerisation (e.g. RNA polymerases and ribosomes) to intracellular transport (motor proteins such as kinesins or dyneins). Although the kinetics of individual motors is well studied on both theoretical and experimental grounds, the repercussions of their stepping cycle on the collective dynamics still remains unclear. Advances in this direction will improve our comprehension of transport process in the natural intracellular medium, where processive motor enzymes might operate in crowded conditions. In this work, we therefore extend the current statistical kinetic analysis to study collective transport phenomena of motors in terms of lattice gas models belonging to the exclusion process class. Via numerical simulations, we show how to interpret and use the randomness calculated from single particle trajectories in crowded conditions. Importantly, we also show that time fluctuations and non-Poissonian behavior are intrinsically related to spatial correlations and the emergence of large, but finite, clusters of co-moving motors. The properties unveiled by our analysis have important biological implications on the collective transport characteristics of processive motor enzymes in crowded conditions.

  13. Proceedings of the international workshop on engineering design of next step reversed field pinch devices

    SciTech Connect (OSTI)

    Thomson, D.B. (comp.)

    1987-11-01T23:59:59.000Z

    These Proceedings contain the formal contributed papers, the workshop papers and workshop summaries presented at the International Workshop on Engineering Design of Next Step RFP Devices held at Los Alamos, July 13-17, 1987. Contributed papers were presented at formal sessions on the topics: (1) physics overview (3 papers); (2) general overview (3 papers); (3) front-end (9 papers); (4) computer control and data acquisition (1 paper); (5) magnetics (5 papers); and (6) electrical design (9 papers). Informal topical workshop sessions were held on the topics: (1) RFP physics (9 papers); (2) front-end (7 papers); (3) magnetics (3 papers); and (4) electrical design (1 paper). This volume contains the summaries written by the Chairmen of each of the informal topical workshop sessions. The papers in these Proceedings represent a significant review of the status of the technical base for the engineering design of the next step RFP devices being developed in the US, Europe, and Japan, as of this date.

  14. Single-strand DNA translation initiation step analyzed by Isothermal Titration Calorimetry

    SciTech Connect (OSTI)

    Damian, Luminita, E-mail: luminitadamian@microcal.eu.com [CNRS, IPBS (Institut de Pharmacologie et de Biologie Structurale), 205 route de Narbonne, F-31077 Toulouse (France) [CNRS, IPBS (Institut de Pharmacologie et de Biologie Structurale), 205 route de Narbonne, F-31077 Toulouse (France); Universite de Toulouse, UPS, IPBS, F-31077 Toulouse (France); IUB, School of Engineering and Science, D-28727 Bremen (Germany); Marty-Detraves, Claire, E-mail: claire.detraves@free.fr [CNRS, IPBS (Institut de Pharmacologie et de Biologie Structurale), 205 route de Narbonne, F-31077 Toulouse (France) [CNRS, IPBS (Institut de Pharmacologie et de Biologie Structurale), 205 route de Narbonne, F-31077 Toulouse (France); Universite de Toulouse, UPS, IPBS, F-31077 Toulouse (France); Winterhalter, Mathias [IUB, School of Engineering and Science, D-28727 Bremen (Germany)] [IUB, School of Engineering and Science, D-28727 Bremen (Germany); Fournier, Didier, E-mail: Didier.Fournier@ipbs.fr [CNRS, IPBS (Institut de Pharmacologie et de Biologie Structurale), 205 route de Narbonne, F-31077 Toulouse (France) [CNRS, IPBS (Institut de Pharmacologie et de Biologie Structurale), 205 route de Narbonne, F-31077 Toulouse (France); Universite de Toulouse, UPS, IPBS, F-31077 Toulouse (France); Paquereau, Laurent, E-mail: Laurent.Paquereau@ipbs.fr [CNRS, IPBS (Institut de Pharmacologie et de Biologie Structurale), 205 route de Narbonne, F-31077 Toulouse (France) [CNRS, IPBS (Institut de Pharmacologie et de Biologie Structurale), 205 route de Narbonne, F-31077 Toulouse (France); Universite de Toulouse, UPS, IPBS, F-31077 Toulouse (France)

    2009-07-31T23:59:59.000Z

    Is single-strand DNA translatable? Since the 60s, the question still remains whether or not DNA could be directly translated into protein. Some discrepancies in the results were reported about functional translation of single-strand DNA but all results converged on a similar behavior of RNA and ssDNA in the initiation step. Isothermal Titration Calorimetry method was used to determine thermodynamic constants of interaction between single-strand DNA and S30 extract of Escherichia coli. Our results showed that the binding was not affected by the nature of the template tested and the dissociation constants were in the same range when ssDNA (K{sub d} = 3.62 {+-} 2.1 x 10{sup -8} M) or the RNA corresponding sequence (K{sub d} = 2.7 {+-} 0.82 x 10{sup -8} M) bearing SD/ATG sequences were used. The binding specificity was confirmed by antibiotic interferences which block the initiation complex formation. These results suggest that the limiting step in translation of ssDNA is the elongation process.

  15. U-163: PHP Command Parameter Bug Lets Remote Users Obtain Potentially Sensitive Information and Execute Arbitrary Code

    Broader source: Energy.gov [DOE]

    A vulnerability was reported in PHP. A remote user can obtain potentially sensitive information. A remote user can execute arbitrary code on the target system.

  16. Analysis of Alternate Methods to Obtain Stabilized Power Performance of CdTe and CIGS PV Modules (Presentation)

    SciTech Connect (OSTI)

    del Cueto, J. A.; Deline, C. A.; Rummel, S.

    2011-02-01T23:59:59.000Z

    This presentation outlines an analysis of alternate methods to obtain stabilized power performance of CdTe and CIGS PV modules.

  17. Development of a Multi-Step Synthesis and Workup Sequence for an Integrated, Continuous Manufacturing Process of a Pharmaceutical

    E-Print Network [OSTI]

    Heider, Patrick L.

    The development and operation of the synthesis and workup steps of a fully integrated, continuous manufacturing plant for synthesizing aliskiren, a small molecule pharmaceutical, are presented. The plant started with ...

  18. Step-wise changes in glacier flow speed coincide with calving and glacial earthquakes at Helheim Glacier, Greenland

    E-Print Network [OSTI]

    Nettles, M.; Larsen, T.B.; Elosegui, P.; Hamilton, Gordon S.; Stearns, Leigh; Ahlstrom, A.P.; Davis, J.L.; Anderson, M.L.; de Juan, J.; Khan, S.A.; Stenseng, L.; Ekstrom, G.; Forsberg, R.

    2008-12-30T23:59:59.000Z

    [1] Geodetic observations show several large, sudden increases in flow speed at Helheim Glacier, one of Greenland's largest outlet glaciers, during summer, 2007. These step-like accelerations, detected along the length of the glacier, coincide...

  19. Ab initio density functional studies of stepped TaC surfaces V. B. Shenoy and C. V. Ciobanu

    E-Print Network [OSTI]

    Ciobanu, Cristian

    RevB.67.081402 PACS number s : 68.35.Bs, 68.35.Md, 73.20.At The stepped surfaces of transition-metal carbides TiC, TaC, etc. are technologically important due to their applica- tions as surface catalysts as they provide a rich ground for studying faceting transitions that involve single- and multiple-height steps

  20. Flame-vortex interaction driven combustion dynamics in a backward-facing step combustor

    SciTech Connect (OSTI)

    Altay, H. Murat; Speth, Raymond L.; Hudgins, Duane E.; Ghoniem, Ahmed F. [Massachusetts Institute of Technology, Department of Mechanical Engineering, Cambridge, MA 02139 (United States)

    2009-05-15T23:59:59.000Z

    The combustion dynamics of propane-hydrogen mixtures are investigated in an atmospheric pressure, lean, premixed backward-facing step combustor. We systematically vary the equivalence ratio, inlet temperature and fuel composition to determine the stability map of the combustor. Simultaneous pressure, velocity, heat release rate and equivalence ratio measurements and high-speed video from the experiments are used to identify and characterize several distinct operating modes. When fuel is injected far upstream from the step, the equivalence ratio entering the flame is temporally and spatially uniform, and the combustion dynamics are governed only by flame-vortex interactions. Four distinct dynamic regimes are observed depending on the operating parameters. At high but lean equivalence ratios, the flame is unstable and oscillates strongly as it is wrapped around the large unsteady wake vortex. At intermediate equivalence ratios, weakly oscillating quasi-stable flames are observed. Near the lean blowout limit, long stable flames extending from the corner of the step are formed. At atmospheric inlet temperature, the unstable mode resonates at the 1/4 wavemode of the combustor. As the inlet temperature is increased, the 5/4 wavemode of the combustor is excited at high but lean equivalence ratios, forming the high-frequency unstable flames. Higher hydrogen concentration in the fuel and higher inlet temperatures reduce the equivalence ratios at which the transitions between regimes are observed. We plot combustion dynamics maps or the response curves, that is the overall sound pressure level as a function of the equivalence ratio, for different operating conditions. We demonstrate that numerical results of strained premixed flames can be used to collapse the response curves describing the transitions among the dynamic modes onto a function of the heat release rate parameter alone, rather than a function dependent on the equivalence ratio, inlet temperature and fuel composition separately. We formulate a theory for predicting the critical values of the heat release parameter at which quasi-stable to unstable and unstable to high-frequency unstable modes take place. (author)

  1. Rate Estimates In order to estimate the time needed to obtain a complete data set for one combination

    E-Print Network [OSTI]

    Appendix C Rate Estimates In order to estimate the time needed to obtain a complete data set for one combination of colliding beams at one energy the following requirements were defined to obtain the model predictions. Also, since emphasis is put on the most central collisions, a 5% trigger is employed

  2. Generation region of pulsating aurora obtained simultaneously by the FAST satellite and a Syowa-Iceland conjugate pair of observatories

    E-Print Network [OSTI]

    California at Berkeley, University of

    Generation region of pulsating aurora obtained simultaneously by the FAST satellite and a Syowa 2004; published 7 October 2004. [1] We have carried out a direct comparison of pulsating auroras), with reference to simultaneous data obtained by a Syowa-Iceland conjugate pair of observatories. The aurora

  3. Extrapolation methods for obtaining low-lying eigenvalues of a large-dimensional shell model Hamiltonian matrix

    SciTech Connect (OSTI)

    Yoshinaga, N. [Department of Physics, Saitama University, Saitama City 338-8570 (Japan); Arima, A. [Science Museum, Japan Science Foundation, 2-1 Kitanomaru-koen, Chiyoda ku, Tokyo 102-0091 (Japan)

    2010-04-15T23:59:59.000Z

    We propose some new, efficient, and practical extrapolation methods to obtain a few low-lying eigenenergies of a large-dimensional Hamiltonian matrix in the nuclear shell model. We obtain those energies at the desired accuracy by extrapolation after diagonalizing small-dimensional submatrices of the sorted Hamiltonian matrix.

  4. CO Oxidation at the Interface of Au Nanoclusters and the Stepped-CeO2(111) Surface

    SciTech Connect (OSTI)

    Kim H. Y.; Henkelman, G.

    2013-01-14T23:59:59.000Z

    To reveal the richer chemistry of CO oxidation by CeO2 supported Au Nanoclusters NCs)/Nanoparticles, we design a Au12 supported on a stepped-CeO2 model (Au/CeO2-step) and study various kinds of CO oxidation mechanisms at the interface of the Au/CeO2-step: oxygen spillover from the CeO2 to the Au NCs;2 CO oxidation by the O2 bound to the Au-Ce3+ interface;3 and CO oxidation by the Mars-van Krevelen (M-vK) mechanism.4 DFT+U calculations show that lattice oxygen at the CeO2 step edge oxidizes CO bound to Au NCs by the M-vK mechanism. CO2 desorption determines the rate of CO oxidation and the vacancy formation energy (Evac) is a reactivity descriptor for CO oxidation. The maximum Evac that insures spontaneous CO2 production is higher for the Au/CeO2-step than the Au/CeO2-surface suggesting that the CeO2-step is a better supporting material than the CeO2-surface for CO oxidation by the Au/CeO2. Our results also suggest that for CO oxidation by Au NCs supported on nano- or meso-structured CeO2, which is the case of industrial catalysts, the M-vK mechanism accounts for a large portion of the total activity.

  5. Scattering and bound states of fermions in a mixed vector–scalar smooth step potential

    SciTech Connect (OSTI)

    Castilho, W.M., E-mail: castilho.w@gmail.com; Castro, A.S. de, E-mail: castro@pq.cnpq.br

    2014-07-15T23:59:59.000Z

    The scattering of a fermion in the background of a smooth step potential is considered with a general mixing of vector and scalar Lorentz structures with the scalar coupling stronger than or equal to the vector coupling. Charge-conjugation and chiral-conjugation transformations are discussed and it is shown that a finite set of intrinsically relativistic bound-state solutions appears as poles of the transmission amplitude. It is also shown that those bound solutions disappear asymptotically as one approaches the conditions for the realization of the so-called spin and pseudospin symmetries in a four-dimensional space–time. - Highlights: • Scattering and bound states of fermions in a kink-like potential. • No pair production despite the high localization. • No bounded solution under exact spin and pseudospin symmetries.

  6. Polarization dependent formation of femtosecond laser-induced periodic surface structures near stepped features

    SciTech Connect (OSTI)

    Murphy, Ryan D. [Applied Physics Program, University of Michigan, Ann Arbor, Michigan 48109 (United States); Torralva, Ben [Department of Atmospheric, Oceanic and Space Sciences, University of Michigan, Ann Arbor, Michigan 48109 (United States); Adams, David P. [Sandia National Laboratories, Albuquerque, New Mexico 87123 (United States); Yalisove, Steven M. [Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109 (United States)

    2014-06-09T23:59:59.000Z

    Laser-induced periodic surface structures (LIPSS) are formed near 110?nm-tall Au microstructured edges on Si substrates after single-pulse femtosecond irradiation with a 150 fs pulse centered near a 780 nm wavelength. We investigate the contributions of Fresnel diffraction from step-edges and surface plasmon polariton (SPP) excitation to LIPSS formation on Au and Si surfaces. For certain laser polarization vector orientations, LIPSS formation is dominated by SPP excitation; however, when SPP excitation is minimized, Fresnel diffraction dominates. The LIPSS orientation and period distributions are shown to depend on which mechanism is activated. These results support previous observations of the laser polarization vector influencing LIPSS formation on bulk surfaces.

  7. Transparent ultralow-density silica aerogels prepared by a two-step sol-gel process

    SciTech Connect (OSTI)

    Tillotson, T.M.; Hrubesh, L.W.

    1991-09-01T23:59:59.000Z

    Conventional silica sol-gel chemistry is limited for the production of transparent ultralow-density aerogels because (1) gelation is either slow or unachievable, and (2) even when gelation is achieved, the large pore sizes result in loss of transparency for aerogels <.020 g/cc. We have developed a two-step sol-gel process that circumvents the limitations of the conventional process and allows the formation of ultralow-density gels in a matter of hours. we have found that the gel time is dependent on the catalyst concentration. After supercritical extraction, the aerogels are transparent, uncracked tiles with densities as low as .003 g/cc. 6 figs., 11 refs.

  8. Modeling the Auto-Ignition of Biodiesel Blends with a Multi-Step Model

    SciTech Connect (OSTI)

    Toulson, Dr. Elisa [Michigan State University, East Lansing; Allen, Casey M [Michigan State University, East Lansing; Miller, Dennis J [Michigan State University, East Lansing; McFarlane, Joanna [ORNL; Schock, Harold [Michigan State University, East Lansing; Lee, Tonghun [Michigan State University, East Lansing

    2011-01-01T23:59:59.000Z

    There is growing interest in using biodiesel in place of or in blends with petrodiesel in diesel engines; however, biodiesel oxidation chemistry is complicated to directly model and existing surrogate kinetic models are very large, making them computationally expensive. The present study describes a method for predicting the ignition behavior of blends of n-heptane and methyl butanoate, fuels whose blends have been used in the past as a surrogate for biodiesel. The autoignition is predicted using a multistep (8-step) model in order to reduce computational time and make this a viable tool for implementation into engine simulation codes. A detailed reaction mechanism for n-heptane-methyl butanoate blends was used as a basis for validating the multistep model results. The ignition delay trends predicted by the multistep model for the n-heptane-methyl butanoate blends matched well with that of the detailed CHEMKIN model for the majority of conditions tested.

  9. NUMERICAL EXPERIMENTS ON THE TWO-STEP EMERGENCE OF TWISTED MAGNETIC FLUX TUBES IN THE SUN

    SciTech Connect (OSTI)

    Toriumi, S.; Yokoyama, T., E-mail: toriumi@eps.s.u-tokyo.ac.jp [Department of Earth and Planetary Science, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan)

    2011-07-10T23:59:59.000Z

    We present the new results of the two-dimensional numerical experiments on the cross-sectional evolution of a twisted magnetic flux tube rising from the deeper solar convection zone (-20,000 km) to the corona through the surface. The initial depth is 10 times deeper than most of the previous calculations focusing on the flux emergence from the uppermost convection zone. We find that the evolution is illustrated by the following two-step process. The initial tube rises due to its buoyancy, subject to aerodynamic drag due to the external flow. Because of the azimuthal component of the magnetic field, the tube maintains its coherency and does not deform to become a vortex roll pair. When the flux tube approaches the photosphere and expands sufficiently, the plasma on the rising tube accumulates to suppress the tube's emergence. Therefore, the flux decelerates and extends horizontally beneath the surface. This new finding owes to our large-scale simulation, which simultaneously calculates the dynamics within the interior as well as above the surface. As the magnetic pressure gradient increases around the surface, magnetic buoyancy instability is triggered locally and, as a result, the flux rises further into the solar corona. We also find that the deceleration occurs at a higher altitude than assumed in our previous experiment using magnetic flux sheets. By conducting parametric studies, we investigate the conditions for the two-step emergence of the rising flux tube: field strength {approx}> 1.5 x 10{sup 4} G and the twist {approx}> 5.0 x 10{sup -4} km{sup -1} at -20,000 km depth.

  10. Potential Next Steps for the New Orleans City Council Energy Efficiency Resolution

    SciTech Connect (OSTI)

    Doris, E.

    2011-09-01T23:59:59.000Z

    This document is adapted from an actual February 2008 deliverable memo and report delivered by the National Renewable Energy Laboratory (NREL) to the City Council of New Orleans, the office of the Mayor of New Orleans, the Chairperson of the Citizen Stakeholders Group (New Orleans Energy Task Force) and the Department of Energy Project Officer in February of 2008. In January 2008, the New Orleans Utility Committee requested review, commentary, and suggestions for Utility Committee next steps related to the Energy Efficiency Resolution (the Resolution) passed by the City Council in December 2007. The suggestions are reprinted here as: (1) An illustration of opportunities for other local governments for the development and implementation of effective energy efficiency ordinances and resolutions; and (2) An example of the type of policy technical assistance that DOE/NREL provides to communities. For more information on the strategy for delivering assistance, please see: www.nrel.gov/docs/fy11osti/48689.pdf. Based on experience in other communities and energy efficiency policies and programs, NREL found the Resolution to be a solid framework for increasing the responsible use of energy efficiency and reaping the associated economic and environmental benefits in the city of New Orleans. The remainder of this document provides the requested suggestions for next steps in implementing the word and spirit of the resolution. These suggestions integrate the extensive work of other entities, including the New Orleans Mayor's office, the New Orleans Energy Advisory Committee, the Energy Efficiency Initiative, and the U.S. Environmental Protection Agency's National Action Plan for Energy Efficiency. In general, three actions were suggested for funding mechanisms, two for near-term successes, and two for longer-term success.

  11. Multi-step self-assembly route to three-dimensional block copolymer-semiconducting nanoparticle photonic arrays with structural hierarchy.

    E-Print Network [OSTI]

    Yusuf, Huda

    2009-01-01T23:59:59.000Z

    ??A new multi-step self-assembly route to polymer-semiconducting nanoparticle photonic structures is described. The multi-step self-assembly strategy targets complex hierarchical structures in which organization of cadmium… (more)

  12. Comment on "Time Step Sensitivity of Nonlinear Atmospheric Models: Numerical Convergence, Truncation Error Growth, and Ensemble Design" Teixeira et al. (2007)

    E-Print Network [OSTI]

    Lun-Shin Yao; Dan Hughes

    2007-04-26T23:59:59.000Z

    Comment on "Time Step Sensitivity of Nonlinear Atmospheric Models: Numerical Convergence, Truncation Error Growth, and Ensemble Design" Teixeira et al.

  13. A Simple Algorithm for Closed-Loop Control of Stepping Motors IEE Proc. -Electr. Power Appl., (1995) Vol 142, No 1, pp 5-13.

    E-Print Network [OSTI]

    Grimbleby, James

    A Simple Algorithm for Closed-Loop Control of Stepping Motors IEE Proc. - Electr. Power Appl of Reading Whiteknights PO Box 225 Reading RG6 2AY ABSTRACT Stepping motors are normally operated without feedback. A simple control algorithm is developed which allows a stepping motor to operate effectively

  14. Effects of aflatoxin production in peanuts on the nutritional and functional properties of products obtained by various processing methods

    E-Print Network [OSTI]

    Ifeacho, Carole Ihuoma

    1978-01-01T23:59:59.000Z

    of flours and protein isolates from wholesome and aflatoxin contaminated peanuts 38 10. Hunter color values for wholesome and aflatoxin contaminated peanut flours and peanut protein isolates. 39 11. Lovibond color tintometer ratio for crude oil obtained... . from prepress solvent extraction and aqueous p~ocessing of wholesome and aflatoxin contaminated peanuts . . 44 12. Some physical and chemical properties of crude oil obtained from prepress solvent extraction and aqueous processing of wholesome...

  15. Constituent quark masses obtained from hadron masses with contributions of Fermi-Breit and Glozman-Riska hyperfine interactions

    SciTech Connect (OSTI)

    Borka Jovanovic, V.; Borka, D. [Laboratory of Physics (010), Vinca Institute of Nuclear Sciences, University of Belgrade, P.O. Box 522, 11001 Belgrade (Serbia); Ignjatovic, S. R. [Department of Physics, Faculty of Science, University of Banja Luka, Mladena Stojanovica 2, 78000 Banja Luka (Bosnia and Herzegowina); Jovanovic, P. [Astronomical Observatory, Volgina 7, 11060 Belgrade (Serbia)

    2010-12-01T23:59:59.000Z

    We use the color-spin and flavor-spin interaction Hamiltonians with SU(3) flavor symmetry breaking to obtain meson and baryon mass formulas. Adjusting these masses with experimental masses we determine the constituent quark masses. We discuss the constituent quark masses obtained from meson and baryon mass fits. The results for constituent quark masses are very similar in the case of two different phenomenological models: Fermi-Breit and Glozman-Riska hyperfine interactions.

  16. One-step synthesis and chemical characterization of Pt-C nanowire composites by plasma sputtering

    E-Print Network [OSTI]

    Boyer, Edmond

    to obtain the highest catalytic surface area from a low metal weight, as for fuel cells [9] or sensors, information storage, medical, biotechnology.[4] Numerous processes of heterogeneous catalysis (vehicle exhaust and industrial effluent treatments, petrochemistry, sensors, energy storage and conversion...) used costly

  17. FutureGen: Stepping-Stone to Sustainable Fossil-Fuel Power Generation

    SciTech Connect (OSTI)

    Zitney, S.E.

    2006-11-01T23:59:59.000Z

    This presentation will highlight the U.S. Department of Energy's FutureGen Initiative. The nearly $1 billion government-industry project is a stepping-stone toward future coal-fired power plants that will produce hydrogen and electricity with zero-emissions, including carbon dioxide. The 275-megawatt FutureGen plant will initiate operations around 2012 and employ advanced coal gasification technology integrated with combined cycle electricity generation, hydrogen production, and carbon capture and sequestration. The initiative is a response to a presidential directive to develop a hydrogen economy by drawing upon the best scientific research to address the issue of global climate change. The FutureGen plant will be based on cutting-edge power generation technology as well as advanced carbon capture and sequestration systems. The centerpiece of the project will be coal gasification technology that can eliminate common air pollutants such as sulfur dioxide and nitrogen oxides and convert them to useable by-products. Gasification will convert coal into a highly enriched hydrogen gas, which can be burned much more cleanly than directly burning the coal itself. Alternatively, the hydrogen can be used in a fuel cell to produce ultra-clean electricity, or fed to a refinery to help upgrade petroleum products. Carbon sequestration will also be a key feature that will set the Futuregen plant apart from other electric power plant projects. The initial goal will be to capture 90 percent of the plant's carbon dioxide, but capture of nearly 100 percent may be possible with advanced technologies. Once captured, the carbon dioxide will be injected as a compressed fluid deep underground, perhaps into saline reservoirs. It could even be injected into oil or gas reservoirs, or into unmineable coal seams, to enhance petroleum or coalbed methane recovery. The ultimate goal for the FutureGen plant is to show how new technology can eliminate environmental concerns over the future use of coal--the most abundant fossil fuel in the United States with supplies projected to last 250 years. FutureGen's co-production of power and hydrogen will also serve as a stepping-stone to an environmentally sustainable energy future.

  18. Obtaining Disaster Assistance (Spanish)

    E-Print Network [OSTI]

    Cavanagh, Joyce

    2008-09-24T23:59:59.000Z

    cubrir las necesidades relacionadas con el desastre ? Cuando se hayan agotado los Gastos Diarios Adicionales provistos por su p?liza ? Cuando usted no cuenta con recursos de alquiler en su ?rea Para obtener m?s informaci?n, visite www. fema...

  19. Obtaining Disaster Assistance

    E-Print Network [OSTI]

    Cavanagh, Joyce

    2008-09-24T23:59:59.000Z

    ? call TTY: 1-800-462-7585). You also may apply online at www.fema.gov (by clicking on ?Online Individual As- sistance Center?). FEMA does not accept applications through the mail; nor can they be completed at Disaster Recovery Centers (unless a Center...). If FEMA determines you are not eligible for assistance, you will receive a letter explaining why you were denied and how to appeal. Appeals must be made in writing and mailed within 60 days of FEMA?s decision. If you have insurance, you should contact...

  20. NREL: Publications - Obtain Publications

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratory | NationalJohn F. Geisz, Ph.D.Solar Energy ResearchWorking with

  1. Coccinelle 1D: A one-dimensional neutron kinetic code using time-step size control

    SciTech Connect (OSTI)

    Engrand, P.R.; Effantin, M.E.; Gherchanoc, J. [Electricite de France, Clamart (France); Larive, B. [Electricite de France, Villeurbanne (France)

    1995-12-31T23:59:59.000Z

    COCCINELLE 1D is a one-dimensional neutron kinetic code that has been adapted from Electricite de France (EDF)`s core design code : COCCINELLE. The aim of this work is to integrate a code, derived from COCCINELLE and therefore taking advantage of most of its developments, into EDF`s Pressurized Water Reactors (PWR) simulation tools. The neutronic model of COCCINELLE ID has been optimized so that the code executes as rapidly as possible. In particular, a fast and stable kinetic method has been implemented: the Generalized Runge-Kutta (GRK) method together with its associated time-step size control. Moreover, efforts have been made to structure the code such that it could be easily integrated into any PWR simulation tool. Results show that the code executes at a rate faster than real-time on several test cases, and that, once integrated in a PWR simulation tool, the system is in good agreement with an experimental transient, that is a 3-hour load follow transient.

  2. Closed loop adaptive control of spectrum-producing step using neural networks

    DOE Patents [OSTI]

    Fu, Chi Yung (San Francisco, CA)

    1998-01-01T23:59:59.000Z

    Characteristics of the plasma in a plasma-based manufacturing process step are monitored directly and in real time by observing the spectrum which it produces. An artificial neural network analyzes the plasma spectrum and generates control signals to control one or more of the process input parameters in response to any deviation of the spectrum beyond a narrow range. In an embodiment, a plasma reaction chamber forms a plasma in response to input parameters such as gas flow, pressure and power. The chamber includes a window through which the electromagnetic spectrum produced by a plasma in the chamber, just above the subject surface, may be viewed. The spectrum is conducted to an optical spectrometer which measures the intensity of the incoming optical spectrum at different wavelengths. The output of optical spectrometer is provided to an analyzer which produces a plurality of error signals, each indicating whether a respective one of the input parameters to the chamber is to be increased or decreased. The microcontroller provides signals to control respective controls, but these lines are intercepted and first added to the error signals, before being provided to the controls for the chamber. The analyzer can include a neural network and an optional spectrum preprocessor to reduce background noise, as well as a comparator which compares the parameter values predicted by the neural network with a set of desired values provided by the microcontroller.

  3. Closed loop adaptive control of spectrum-producing step using neural networks

    DOE Patents [OSTI]

    Fu, C.Y.

    1998-11-24T23:59:59.000Z

    Characteristics of the plasma in a plasma-based manufacturing process step are monitored directly and in real time by observing the spectrum which it produces. An artificial neural network analyzes the plasma spectrum and generates control signals to control one or more of the process input parameters in response to any deviation of the spectrum beyond a narrow range. In an embodiment, a plasma reaction chamber forms a plasma in response to input parameters such as gas flow, pressure and power. The chamber includes a window through which the electromagnetic spectrum produced by a plasma in the chamber, just above the subject surface, may be viewed. The spectrum is conducted to an optical spectrometer which measures the intensity of the incoming optical spectrum at different wavelengths. The output of optical spectrometer is provided to an analyzer which produces a plurality of error signals, each indicating whether a respective one of the input parameters to the chamber is to be increased or decreased. The microcontroller provides signals to control respective controls, but these lines are intercepted and first added to the error signals, before being provided to the controls for the chamber. The analyzer can include a neural network and an optional spectrum preprocessor to reduce background noise, as well as a comparator which compares the parameter values predicted by the neural network with a set of desired values provided by the microcontroller. 7 figs.

  4. Detachment, Futile Cycling and Nucleotide Pocket Collapse in Myosin-V Stepping

    E-Print Network [OSTI]

    Neville J. Boon; Rebecca B. Hoyle

    2015-02-06T23:59:59.000Z

    Myosin-V is a highly processive dimeric protein that walks with 36nm steps along actin tracks, powered by coordinated ATP hydrolysis reactions in the two myosin heads. No previous theoretical models of the myosin-V walk reproduce all the observed trends of velocity and run-length with [ADP], [ATP] and external forcing. In particular, a result that has eluded all theoretical studies based upon rigorous physical chemistry is that run length decreases with both increasing [ADP] and [ATP]. We systematically analyse which mechanisms in existing models reproduce which experimental trends and use this information to guide the development of models that can reproduce them all. We formulate models as reaction networks between distinct mechanochemical states with energetically determined transition rates. For each network architecture, we compare predictions for velocity and run length to a subset of experimentally measured values, and fit unknown parameters using a bespoke MCSA optimization routine. Finally we determine which experimental trends are replicated by the best-fit model for each architecture. Only two models capture them all: one involving [ADP]-dependent mechanical detachment, and another including [ADP]-dependent futile cycling and nucleotide pocket collapse. Comparing model-predicted and experimentally observed kinetic transition rates favors the latter.

  5. Turbulent heat transfer in parallel flow boundary layers with streamwise step changes in surface conditions

    SciTech Connect (OSTI)

    Lindberg, W.R.; Lee, R.C.; Smathers, L.B. (Univ. of Wyoming, Laramie (United States))

    1989-11-01T23:59:59.000Z

    This paper examines the convective heat/mass transfer behavior of a turbulent boundary layer with parallel streamlines. The most notable example of such flow is an atmospheric boundary layer with a steady mean wind in the absence of topography. The classic, two-dimensional problem involves the surface boundary condition of a finite-length step change in temperature/concentration in the streamwise direction of an atmospheric flow. In the literature on geophysical evapotranspiration, this problem is known as Sutton's problem (cf. Sutton, 1934, and Brutsaert, 1984). This flow situation is equally applicable to heat/mass transfer in solar ponds, ground solar collectors, and heated roadways, as examples. The present note revisits the Sutton problem, with the can Driest eddy diffusivity model, and expands the types of boundary conditions that are examined to include surface changes in temperature/concentration and fluxes. The parallel streamline condition allows for Graetz-type solutions, with boundary conditions at the surface and in the far flow field. The predicted results are presented as a series of power law correlations of the relevant nondimensional parameters.

  6. Stepped-frequency continuous-wave microwave-induced thermoacoustic imaging

    SciTech Connect (OSTI)

    Nan, Hao, E-mail: haonan@stanford.edu; Arbabian, Amin [Department of Electrical Engineering, Stanford University, Stanford, California 94305 (United States)

    2014-06-02T23:59:59.000Z

    Microwave-induced thermoacoustic (TA) imaging combines the dielectric contrast of microwave imaging with the resolution of ultrasound imaging. Prior studies have only focused on time-domain techniques with short but powerful microwave pulses that require a peak output power in excess of several kilowatts to achieve sufficient signal-to-noise ratio (SNR). This poses safety concerns as well as to render the imager expensive and bulky with requiring a large vacuum radio frequency source. Here, we propose and demonstrate a coherent stepped-frequency continuous-wave (SFCW) technique for TA imaging which enables substantial improvements in SNR and consequently a reduction in peak power requirements for the imager. Constructive and destructive interferences between TA signals are observed and explained. Full coherency across microwave and acoustic domains, in the thermo-elastic response, is experimentally verified and this enables demonstration of coherent SFCW microwave-induced TA imaging. Compared to the pulsed technique, an improvement of 17?dB in SNR is demonstrated.

  7. Improving the actinides recycling in closed fuel cycles, a major step towards nuclear energy sustainability

    SciTech Connect (OSTI)

    Poinssot, C.; Grandjean, S.; Masson, M. [RadioChemistry and Processes Department, CEA Marcoule, 30207 Bagnols sur Ceze (France); Bouillis, B.; Warin, D. [Innovation and Industrial Support Direction, CEA Saclay, F-91191 Gif-sur-Yvette (France)

    2013-07-01T23:59:59.000Z

    Increasing the sustainability of nuclear energy is a longstanding road that requires a stepwise approach to successively tackle the following 3 objectives. First of all, optimize the consumption of natural resource to preserve them for future generations and hence guarantee the energetic independence of the countries (no uranium ore is needed anymore). The current twice-through cycle of Pu implemented by France, UK, Japan and soon China is a first step in this direction and already allows the development and optimization of the relevant industrial processes. It also allows a major improvement regarding the conditioning of the ultimate waste in a durable and robust nuclear glass. Secondly, the recycling of americium could be an interesting option for the future with the deployment of FR fleet to save the repository resource and optimize its use by allowing a denser disposal. It would limit the burden towards the future generations and the need for additional repositories before several centuries. Thirdly, the recycling of the whole minor actinides inventory could be an interesting option for the far-future for strongly decreasing the waste long-term toxicity, down to a few centuries. It would bring the waste issue back within the human history, which should promote its acceptance by the social opinion.

  8. Lifetime Prediction for Degradation of Solar Mirrors using Step-Stress Accelerated Testing (Presentation)

    SciTech Connect (OSTI)

    Lee, J.; Elmore, R.; Kennedy, C.; Gray, M.; Jones, W.

    2011-09-01T23:59:59.000Z

    This research is to illustrate the use of statistical inference techniques in order to quantify the uncertainty surrounding reliability estimates in a step-stress accelerated degradation testing (SSADT) scenario. SSADT can be used when a researcher is faced with a resource-constrained environment, e.g., limits on chamber time or on the number of units to test. We apply the SSADT methodology to a degradation experiment involving concentrated solar power (CSP) mirrors and compare the results to a more traditional multiple accelerated testing paradigm. Specifically, our work includes: (1) designing a durability testing plan for solar mirrors (3M's new improved silvered acrylic "Solar Reflector Film (SFM) 1100") through the ultra-accelerated weathering system (UAWS), (2) defining degradation paths of optical performance based on the SSADT model which is accelerated by high UV-radiant exposure, and (3) developing service lifetime prediction models for solar mirrors using advanced statistical inference. We use the method of least squares to estimate the model parameters and this serves as the basis for the statistical inference in SSADT. Several quantities of interest can be estimated from this procedure, e.g., mean-time-to-failure (MTTF) and warranty time. The methods allow for the estimation of quantities that may be of interest to the domain scientists.

  9. Elementary Steps of Syngas Reactions on Mo2C(001): Adsorption Thermochemistry and Bond Dissociation

    SciTech Connect (OSTI)

    Medford, Andrew

    2012-02-16T23:59:59.000Z

    Density functional theory (DFT) and ab initio thermodynamics are applied in order to investigate the most stable surface and subsurface terminations of Mo{sub 2}C(001) as a function of chemical potential and in the presence of syngas. The Mo-terminated (001) surface is then used as a model surface to evaluate the thermochemistry and energetic barriers for key elementary steps in syngas reactions. Adsorption energy scaling relations and Broensted-Evans-Polanyi relationships are established and used to place Mo{sub 2}C into the context of transition metal surfaces. The results indicate that the surface termination is a complex function of reaction conditions and kinetics. It is predicted that the surface will be covered by either C{sub 2}H{sub 2} or O depending on conditions. Comparisons to transition metals indicate that the Mo-terminated Mo{sub 2}C(001) surface exhibits carbon reactivity similar to transition metals such as Ru and Ir, but is significantly more reactive towards oxygen.

  10. Cobalt intercalation at the graphene/iridium(111) interface: Influence of rotational domains, wrinkles, and atomic steps

    SciTech Connect (OSTI)

    Vlaic, S.; Kimouche, A.; Coraux, J.; Rougemaille, N. [CNRS, Inst NEEL, F-38042 Grenoble (France) [CNRS, Inst NEEL, F-38042 Grenoble (France); Univ. Grenoble Alpes, Inst NEEL, F-38042 Grenoble (France); Santos, B.; Locatelli, A. [Elettra-Sincrotrone Trieste S.C.p.A., S.S: 14 km 163.5 in AREA Science Park, I-34149 Basovizza, Trieste (Italy)] [Elettra-Sincrotrone Trieste S.C.p.A., S.S: 14 km 163.5 in AREA Science Park, I-34149 Basovizza, Trieste (Italy)

    2014-03-10T23:59:59.000Z

    Using low-energy electron microscopy, we study Co intercalation under graphene grown on Ir(111). Depending on the rotational domain of graphene on which it is deposited, Co is found intercalated at different locations. While intercalated Co is observed preferentially at the substrate step edges below certain rotational domains, it is mostly found close to wrinkles below other domains. These results indicate that curved regions (near substrate atomic steps and wrinkles) of the graphene sheet facilitate Co intercalation and suggest that the strength of the graphene/Ir interaction determines which pathway is energetically more favorable.

  11. The Planck Length Scale and Einstein Mass-Energy Obtained from the Sciama-Mach Large Number Relationship

    E-Print Network [OSTI]

    Scott Funkhouser

    2003-09-25T23:59:59.000Z

    If a physical significance should be attributed to the cosmological large number relationship obtained from Sciama's formulation of Mach's Principle, then a number of interesting physical conclusions may be drawn. The Planck length is naturally obtained as the amplitude of waves in a medium whose properties are implied by the relationship. The relativistic internal energy associated with a rest mass is explicitly related to the gravitational potential energy of the Universe, and consistency with the Einstein photon energy is demonstrated. Broader cosmological consequences of this formulation are addressed.

  12. Studies on design of a process for organo-refining of coal to obtain super clean coal

    SciTech Connect (OSTI)

    Sharma, C.S.; Sharma, D.K. [Indian Inst. of Tech., New Delhi (India). Centre for Energy Studies

    1999-08-01T23:59:59.000Z

    Organo-refining of coal results in refining the coal to obtain super clean coal and residual coal. Super clean coal may be used to obtain value added chemicals, products, and cleaner fuels from coal. In the present work, studies on the design of a semicontinuous process for organo-refining of one ton of coal have been made. The results are reported. This is only a cursory attempt for the design, and further studies may be required for designing this process for use in the development of a scaled-up process of organo-refining of coal.

  13. GLOBAL MONITORING OF URANIUM HEXIFLORIDE CYLINDERS NEXT STEPS IN DEVELOPMENT OF AN ACTION PLAN

    SciTech Connect (OSTI)

    Hanks, D.

    2010-06-09T23:59:59.000Z

    Over 40 industrial facilities world-wide use standardized uranium hexafluoride (UF{sub 6}) cylinders for transport, storage and in-process receiving in support of uranium conversion, enrichment and fuel fabrication processes. UF{sub 6} is processed and stored in the cylinders, with over 50,000 tU of UF{sub 6} transported each year in these International Organization for Standardization (ISO) qualified containers. Although each cylinder is manufactured to an ISO standard that calls for a nameplate with the manufacturer's identification number (ID) and the owner's serial number engraved on it, these can be quite small and difficult to read. Recognizing that each facility seems to use a different ID, a cylinder can have several different numbers recorded on it by means of metal plates, sticky labels, paint or even marker pen as it travels among facilities around the world. The idea of monitoring movements of UF{sub 6} cylinders throughout the global uranium fuel cycle has become a significant issue among industrial and safeguarding stakeholders. Global monitoring would provide the locations, movements, and uses of cylinders in commercial nuclear transport around the world, improving the efficiency of industrial operations while increasing the assurance that growing nuclear commerce does not result in the loss or misuse of cylinders. It should be noted that a unique ID (UID) attached to a cylinder in a verifiable manner is necessary for safeguarding needs and ensuring positive ID, but not sufficient for an effective global monitoring system. Modern technologies for tracking and inventory control can pair the UID with sensors and secure data storage for content information and complete continuity of knowledge over the cylinder. This paper will describe how the next steps in development of an action plan for employing a global UF{sub 6} cylinder monitoring network could be cultivated using four primary UID functions - identification, tracking, controlling, and accounting.

  14. The need for health impact assessment in China: Potential benefits for public health and steps forward

    SciTech Connect (OSTI)

    Wu Liming, E-mail: lmwu@scdc.sh.c [Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336 (China); Center for Environment and Population Health, Griffith University, Nathan 4111 (Australia); Rutherford, Shannon; Chu, Cordia [Center for Environment and Population Health, Griffith University, Nathan 4111 (Australia)

    2011-07-15T23:59:59.000Z

    Health impact assessment (HIA) is a useful tool to predict and estimate the potential health impact associated with programs, projects, and policies by comprehensively identifying relevant health determinants and their consequences. China is undergoing massive and rapid socio-economic changes leading to environment and population health challenges such as a large increase in non-communicable diseases, the emergence and re-emergence of infectious diseases, new health risks associated with environmental pollutants and escalating health inequality. These health issues are affected by multiple determinants which can be influenced by planned policies, programs, and projects. This paper discusses the needs for health impact assessment in China in order to minimize the negative health consequences from projects, programs and policies associated with rapid social and economic development. It first describes the scope of China's current impact assessment system and points out its inadequacy in meeting the requirements of population health protection and promotion. It then analyses the potential use of HIA and why China needs to develop and apply HIA as a tool to identify potential health impacts of proposed programs, projects and policies so as to influence decision-making early in the planning process. Thus, the paper recommends the development of HIA as a useful tool in China to enhance decision-making for the protection and promotion of population health. For this to happen, the paper outlines steps necessary for the establishment and successful implementation of HIA in China: beginning with the establishment of a HIA framework, followed by workforce capacity building, methodology design, and intersectoral collaboration and stakeholder engagement.

  15. Structural and magnetic properties of NiZn and Zn ferrite thin films obtained by laser ablation deposition

    E-Print Network [OSTI]

    McHenry, Michael E.

    Structural and magnetic properties of NiZn and Zn ferrite thin films obtained by laser ablation ferrite structures. Our investigations were performed on NiZn and Zn ferrite films deposited on silicon of the blocking temperature in both NiZn and Zn ferrite systems. © 2005 American Institute of Physics. DOI: 10

  16. with Earth's Theia component; thus, it is present-ly not possible to obtain information on D17

    E-Print Network [OSTI]

    Napp, Nils

    with Earth's Theia component; thus, it is present- ly not possible to obtain information on D17 O of the proto-Earth. An alternative explanation for the isotope difference between Earth and the Moon is that the D17 O value of Earth was modified by late- accreting material (late veneer) after the for- mation

  17. Jessica Currier Homeless Program I obtained my Bachelor's degree in Social Work at the College at Brockport. I minored

    E-Print Network [OSTI]

    McConnell, Terry

    , employment opportunities, and assess for emergent needs. Substance abuse treatment groups are also offered. #12;David Minney ­ Patient Aligned Care Team I obtained my undergraduate degree at Syracuse University for treatment. There are also opportunities for the student to provide Brief Family Therapy. #12;Naomi Mc

  18. Characterization of Gas Metal Arc Welding welds obtained with new high Cr-Mo ferritic stainless steel filler wires

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Characterization of Gas Metal Arc Welding welds obtained with new high Cr-Mo ferritic stainless Several compositions of metal cored filler wire were manufactured to define the best welding conditions for homogeneous welding, by Gas Metal Arc Welding (GMAW) process, of a modified AISI 444 ferritic stainless steel

  19. Anal. Chem. 1981, 53, 1241-1244 1241 Comparison of Mass Spectra Obtained with Low-Energy Ion

    E-Print Network [OSTI]

    Chait, Brian T.

    and High-Energy Californium-252 Fission Fragment Bombardment Werner Ens and K. G. Standing Physics mass spectrometry (1,2)and low-energy ion bombardment mass spectrometry (3-5). In these techniquesAnal. Chem. 1981, 53, 1241-1244 1241 Comparison of Mass Spectra Obtained with Low-Energy Ion

  20. ON THE DYNAMICS OF THE SOLAR CORONA: FIRST RESULTS OBTAINED WITH A NEW 3D MHD MODEL

    E-Print Network [OSTI]

    Grauer, Rainer

    1 ON THE DYNAMICS OF THE SOLAR CORONA: FIRST RESULTS OBTAINED WITH A NEW 3D MHD MODEL J. Kleimann 1) is applied to the problem of the dynamics of the solar corona. First, we present the basic system of equations for a two- uid description of the solar wind plasma and point out possible numerical di

  1. For economic energy, we need: tritium, large size to obtain hot fusing plasma; high fields and large currents

    E-Print Network [OSTI]

    -D, and not optimised for neutron production) Fusion for ENERGY is difficult: #12;22 The smaller scale (and possible11 For economic energy, we need: tritium, large size to obtain hot fusing plasma; high fields and large currents high running costs, large stored energy (beware disruptions, ELMs) Fusion for NEUTRONS

  2. Phytologia (Oct. 1, 2014) 96(4)252 Comparison of volatile leaf terpenoids from Lippia dulcis (Verbenaceae) obtained by steam

    E-Print Network [OSTI]

    Adams, Robert P.

    (Verbenaceae) obtained by steam distillation and pentane liquid extraction Robert P. Adams Biology Department, Prairie View, TX 77446 ABSTRACT Comparison of pentane extraction and steam distillation of intact leaves to be due to the different effects of pentane solvent on intact leaves (vs. steam volatilization

  3. Decarboxylative Arylation of Amino Acids via Photoredox Catalysis: A One-Step Conversion of Biomass to Drug

    E-Print Network [OSTI]

    MacMillan, David W. C.

    Decarboxylative Arylation of Amino Acids via Photoredox Catalysis: A One-Step Conversion of Biomass. This method offers rapid entry to prevalent benzylic amine architectures from an abundant biomass the worldwide abundance of biomass6 that incorporates carboxylate functionality (e.g., amino acids, -hydroxy

  4. Developments for a Swept Wing Airfoil to Study the Effects of Step and Gap Excrescences on Boundary Layer Transition

    E-Print Network [OSTI]

    Hedderman, Simon Peter

    2013-01-15T23:59:59.000Z

    on excrescences on flat plates, and only recently included pressure gradient effects. A new three-dimensional swept wing airfoil with an actuated leading edge (SWIFTER) has been constructed, and will extend the body of knowledge of step and gap excrescences to a...

  5. Absolute orientation-dependent TiN(001) step energies from two-dimensional equilibrium island shape and

    E-Print Network [OSTI]

    Khare, Sanjay V.

    Absolute orientation-dependent TiN(001) step energies from two-dimensional equilibrium island shape and coarsening measurements on epitaxial TiN(001) layers S. Kodambaka *, S.V. Khare, V. Petrova, A. Vailionis 1 microscopy was used to determine the equilibrium shapes of two-dimensional TiN vacancy islands on atomically

  6. Absolute orientation-dependent anisotropic TiN,,111... island step energies and stiffnesses from shape fluctuation analyses

    E-Print Network [OSTI]

    Khare, Sanjay V.

    Absolute orientation-dependent anisotropic TiN,,111... island step energies and stiffnesses from fluctuations about the anisotropic equilibrium shape of two-dimensional TiN 111 adatom and vacancy islands on atomically smooth TiN 111 terraces. The equilibrium island shape was found to be a truncated hexagon bounded

  7. JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 16, NO. 12, DECEMBER 1998 2451 Power Loss Analysis at a Step Discontinuity

    E-Print Network [OSTI]

    Krchnavek, Robert R.

    JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 16, NO. 12, DECEMBER 1998 2451 Power Loss Analysis at a Step neglecting the evanescent radiation modes. The amount of power loss depends primarily on the number of modes. Index Terms--Multimode waveguides, optical waveguides, opti- cal waveguide theory, power loss, radiation

  8. One-Step Synthesis of FePt Nanoparticles with Tunable Size Min Chen,, J. P. Liu, and Shouheng Sun*,

    E-Print Network [OSTI]

    Liu, J. Ping

    One-Step Synthesis of FePt Nanoparticles with Tunable Size Min Chen,, J. P. Liu, and Shouheng SunPt is coated over the seeds. Although size distribution of the particles prepared from all these methods can of the stabilizers and metal precursors, heating rate, heating temperature, and heating duration. Further, core

  9. Uncovering the Microbial Diversity of the Alberta Oil Sands through Metagenomics: A Stepping Stone for Enhanced Oil Recovery and

    E-Print Network [OSTI]

    Voordouw, Gerrit

    1 Uncovering the Microbial Diversity of the Alberta Oil Sands through Metagenomics: A Stepping Stone for Enhanced Oil Recovery and Environmental Solutions Writing Team: Julia Foght1 , Robert Holt2 Agency; 3 Department of Biological Sciences, University of Calgary; 4 Department of Geology

  10. Wiring design based on Global Energy Requirement criteria: a first step towards optimization of DC distribution voltage

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    optimization methodology based on the primary energy environmental impact 2.1. The Global Energy RequirementWiring design based on Global Energy Requirement criteria: a first step towards optimization of DC. Introduction Nowadays, the global energy context leads to a need for the development of distributed Renewable

  11. Possibility of c-axis voltage steps for a cuprate superconductor in a resonant cavity I. Tornes* and D. Stroud

    E-Print Network [OSTI]

    Stroud, David

    , when driven by currents parallel to the c axis, behave like stacks of underdamped Josephson junctions's in stacks of artificial Josephson junctions. We conclude that such steps might be observable with a suitably, 74.25.Nf I. INTRODUCTION Barbara et al.1 have recently shown that underdamped Josephson-junction

  12. Reduced Total Energy Requirements for the Natario Warp Drive Spacetime using Heaviside Step Functions as Analytical Shape Functions.

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Reduced Total Energy Requirements for the Natario Warp Drive Spacetime using Heaviside Step Functions as Analytical Shape Functions. Fernando Loup Daniel Rocha December 3, 2012 Abstract Warp Drives Relativity. There are at the present moment two known solutions: The Alcubierre warp drive discovered in 1994

  13. The Effect of Debris on Collector Optics, its Mitigation and Repair: Next-Step a Gaseous Sn EUV DPP Source

    E-Print Network [OSTI]

    Spila, Timothy P.

    The Effect of Debris on Collector Optics, its Mitigation and Repair: Next-Step a Gaseous Sn EUV DPP to advanced fuel plasma EUV sources is collector lifetime. The Illinois Debris-mitigation EUV Applications based on this work. Keywords: EUV source, debris, optics, collector lifetime, mitigation, plasma

  14. 1. RESERVOIR PERFORMANCE ANALYSIS 1.1 Analysis of Step Rate Injection Tests in the O'Daniel Pilot Area

    E-Print Network [OSTI]

    Schechter, David S.

    - 1- 1. RESERVOIR PERFORMANCE ANALYSIS 1.1 Analysis of Step Rate Injection Tests in the O the reservoir rock. This pressure is referred as to formation parting pressure. Determination of formation demonstrates stress-sensitive behavior, one of the phenomena that influences the performance of waterflooding

  15. Single-step multiplex detection of toxic metal ions by Au nanowires-on-chip sensor using reporter elimination

    E-Print Network [OSTI]

    Kim, Bongsoo

    Single-step multiplex detection of toxic metal ions by Au nanowires-on-chip sensor using reporter sensitively detect multiple toxic metal ions. Most importantly, the reporter elimination method simplified by using this sensor. 1. Introduction Heavy metal ions such as mercury (Hg2+ ), silver (Ag+ ), and lead (Pb

  16. The Effects of the Four-Step Problem-Solving Model on Algebra I Students' Mathematical Achievement and Opinions

    E-Print Network [OSTI]

    Cruce, Marae Michelle

    2010-07-29T23:59:59.000Z

    This study investigated the effects of experiences with a specific problem-solving model on students' ability to solve multi-step word problems and students' beliefs about problem solving. Algebra I students completed a test of the same 16 free...

  17. Using remotely sensed solar radiation data for reference1 evapotranspiration estimation at a daily time step2

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Using remotely sensed solar radiation data for reference1 evapotranspiration estimation: +33 5 57 35 07 59. Email: k-van-leeuwen@enitab.fr13 14 15 Abstract16 Solar radiation is an important database, which displays spatialized19 solar radiation data at a daily time step for Europe and Africa

  18. Instructions for Using the Pre, Post, and 30-day Follow-up Instrument for Step Up and Scale Down

    E-Print Network [OSTI]

    Instructions for Using the Pre, Post, and 30-day Follow-up Instrument for Step Up and Scale Down 1 their code number is so you can match it with their post-survey and 30-day follow-up instruments. You can of the series, contact the participants by phone to administer the 30-day follow-up survey. Either the Extension

  19. Abstract-During the design of permanent magnet synchronous machines (PMSM), the first step that engineers have to do,

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Abstract-During the design of permanent magnet synchronous machines (PMSM), the first step. Fractional- slots (FS)-PMSM offers several advantages and have been focused by a lot of researches. However to their numerous advantages, PMSM have found wide attention in the research and industrial areas. For instance

  20. Utilizing of protein splicing phenomenon for optimization of obtaining and purification of the recombinant human growth hormone

    E-Print Network [OSTI]

    P. L. Starokadomskyy; O. V. Okunev; L. V. Dubey

    2006-12-05T23:59:59.000Z

    Protein splicing is a post-translational autocatalystic excision of internal protein sequence (intein) with the subsequent ligation of the flanking polypeptides (exteins). The high specificity of excision ensured by intein makes it possible to use a phenomenon of protein splicing for the biotechnology purposes. The aim of this work was optimization of obtaining and purification of the recombinant human growth hormone using the protein splicing. It was experimentally demonstrated that the use of modified intein as auto-removal affine marker makes it possible to perform the rapid and cheap isolation of the recombinant protein Hgh. Furthermore, this approach allows to obtain the human growth hormone with native N-terminus, without formyl-metionine. Key words: intein, human growth hormone, protein splicing

  1. Subcontracted R and D final report: analysis of samples obtained from GKT gasification test of Kentucky coal. Nonproprietary version

    SciTech Connect (OSTI)

    Raman, S.V.

    1983-09-01T23:59:59.000Z

    A laboratory test program was performed to obtain detailed compositional data on the Gesellshaft fuer Kohle-Technologie (GKT) gasifier feed and effluent streams. GKT performed pilot gasification tests with Kentucky No. 9 coal and collected various samples which were analyzed by GKT and the Radian Corporation, Austin, Texas. The coal chosen had good liquefaction characteristics and a high gasification reactivity. No organic priority pollutants or PAH compounds were detected in the wash water, and solid waste leachates were within RCRA metals limits.

  2. Validation and Comparison of Carbon Sequestration Project Cost Models with Project Cost Data Obtained from the Southwest Partnership

    SciTech Connect (OSTI)

    Robert Lee; Reid Grigg; Brian McPherson

    2011-04-15T23:59:59.000Z

    Obtaining formal quotes and engineering conceptual designs for carbon dioxide (CO{sub 2}) sequestration sites and facilities is costly and time-consuming. Frequently, when looking at potential locations, managers, engineers and scientists are confronted with multiple options, but do not have the expertise or the information required to quickly obtain a general estimate of what the costs will be without employing an engineering firm. Several models for carbon compression, transport and/or injection have been published that are designed to aid in determining the cost of sequestration projects. A number of these models are used in this study, including models by J. Ogden, MIT's Carbon Capture and Sequestration Technologies Program Model, the Environmental Protection Agency and others. This report uses the information and data available from several projects either completed, in progress, or conceptualized by the Southwest Regional Carbon Sequestration Partnership on Carbon Sequestration (SWP) to determine the best approach to estimate a project's cost. The data presented highlights calculated versus actual costs. This data is compared to the results obtained by applying several models for each of the individual projects with actual cost. It also offers methods to systematically apply the models to future projects of a similar scale. Last, the cost risks associated with a project of this scope are discussed, along with ways that have been and could be used to mitigate these risks.

  3. A Ten Step Protocol and Plan for CCS Site Characterization, Based on an Analysis of the Rocky Mountain Region, USA

    SciTech Connect (OSTI)

    McPherson, Brian; Matthews, Vince

    2013-09-15T23:59:59.000Z

    This report expresses a Ten-Step Protocol for CO2 Storage Site Characterization, the final outcome of an extensive Site Characterization analysis of the Rocky Mountain region, USA. These ten steps include: (1) regional assessment and data gathering; (2) identification and analysis of appropriate local sites for characterization; (3) public engagement; (4) geologic and geophysical analysis of local site(s); (5) stratigraphic well drilling and coring; (6) core analysis and interpretation with other data; (7) database assembly and static model development; (8) storage capacity assessment; (9) simulation and uncertainty assessment; (10) risk assessment. While the results detailed here are primarily germane to the Rocky Mountain region, the intent of this protocol is to be portable or generally applicable for CO2 storage site characterization.

  4. Steps being taken to resolve questions on natural gas use for power generation in the New England region

    SciTech Connect (OSTI)

    Gulick, C. [Boston Gas Company, Boston, MA (United States)

    1995-12-31T23:59:59.000Z

    Steps being taken to resolve questions on natural gas use for power generation in the New England Region are outlined. The following topics are discussed: bridging the gap, gas/electric discussion group, energy consumption by fuel, NEPOOL energy mix forecast, the players and their needs, pipelines serving New England, evaluation of pipeline reliability, industry survey, summary of survey conclusions, communications, operational differences, recommended red alert information sequence, handling a crisis, and major accomplishments to date.

  5. Predictability of estimated maximal aerobic capacities for manual material handlers using submaximal box lifting and bench stepping tests

    E-Print Network [OSTI]

    Cortner, James D.

    1996-01-01T23:59:59.000Z

    and not supporting an Oxylog unit that weighs 2.6 kg (5.8 lb). The mean S.D. manual material handling V 02 max of 2.94 ?0.3 8 L02 /min was not significantly greater (p = 0.0798) than the bench stepping while supporting the Oxylog unit V 02 m. (2.94 ?0.44 L02/min...

  6. Process for separating carbon dioxide from flue gas using sweep-based membrane separation and absorption steps

    DOE Patents [OSTI]

    Wijmans, Johannes G.; Baker, Richard W.; Merkel, Timothy C.

    2012-08-21T23:59:59.000Z

    A gas separation process for treating flue gases from combustion processes, and combustion processes including such gas separation. The invention involves routing a first portion of the flue gas stream to be treated to an absorption-based carbon dioxide capture step, while simultaneously flowing a second portion of the flue gas across the feed side of a membrane, flowing a sweep gas stream, usually air, across the permeate side, then passing the permeate/sweep gas to the combustor.

  7. A Study of the Yield of Camphor and of Camphor Oil Obtained from the Laurus Camphora of Jamaica

    E-Print Network [OSTI]

    Weidlein, Edward Ray

    1910-05-15T23:59:59.000Z

    to the air* On fractionating this a color­ less -transparent liquid is obtained, specific gravity 870-©3.0. It boils from 150° to 195©. The chief con­ stituents are pinene, phellandrene, cineol, dipentene and some oamphor. On further fractionating, a yellow... of drying and distilling it is not possible to separate it from water and the essential oil, exoept with a loss of some of the camphor. We have thought it best, therefore, to follow a method which may be like the one used in Industrial extraction...

  8. Method and apparatus for converting and removing organosulfur and other oxidizable compounds from distillate fuels, and compositions obtained thereby

    DOE Patents [OSTI]

    D'Alessandro, Robert N. (Spanish Fort, AL); Tarabocchia, John (Parsippany, NJ); Jones, Jerald Andrew (Frankfurt am Main, DE); Bonde, Steven E. (West Richard, WA); Leininger, Stefan (Langenselbold, DE)

    2010-10-26T23:59:59.000Z

    The present disclosure is directed to a multi-stage system and a process utilizing said system with the design of reducing the sulfur-content in a liquid comprising hydrocarbons and organosulfur compounds. The process comprising at least one of the following states: (1) an oxidation stage; (2) an extraction state; (3) a raffinate washing stage; (4) a raffinate polishing stage; (5) a solvent recovery stage; (6) a solvent purification stage; and (7) a hydrocarbon recovery stage. The process for removing sulfur-containing hydrocarbons from gas oil, which comprises oxidizing gas oil comprising hydrocarbons and organosulfur compounds to obtain a product gas oil.

  9. Patient-specific quantification of respiratory motion-induced dose uncertainty for step-and-shoot IMRT of lung cancer

    SciTech Connect (OSTI)

    Li, Heng; Park, Peter; Liu, Wei; Matney, Jason; Balter, Peter; Zhang, Xiaodong; Li, Xiaoqiang; Zhu, X. Ronald [Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030 (United States)] [Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030 (United States); Liao, Zhongxing [Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030 (United States)] [Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030 (United States); Li, Yupeng [Applied Research, Varian Medical Systems, Palo Alto, California 94304 (United States)] [Applied Research, Varian Medical Systems, Palo Alto, California 94304 (United States)

    2013-12-15T23:59:59.000Z

    Purpose: The objective of this study was to quantify respiratory motion-induced dose uncertainty at the planning stage for step-and-shoot intensity-modulated radiation therapy (IMRT) using an analytical technique.Methods: Ten patients with stage II/III lung cancer who had undergone a planning four-dimensional (4D) computed tomographic scan and step-and-shoot IMRT planning were selected with a mix of motion and tumor size for this retrospective study. A step-and-shoot IMRT plan was generated for each patient. The maximum and minimum doses with respiratory motion were calculated for each plan, and the mean deviation from the 4D dose was calculated, taking delivery time, fractionation, and patient breathing cycle into consideration.Results: For all patients evaluated in this study, the mean deviation from the 4D dose in the planning target volume (PTV) was <2.5%, with a standard deviation <1.2%, and maximum point dose variation from the 4D dose was <6.2% in the PTV assuming delivery dose rate of 200 MU/min and patient breathing cycle of 8 s. The motion-induced dose uncertainty is a function of motion, fractionation, MU (plan modulation), dose rate, and patient breathing cycle.Conclusions: Respiratory motion-induced dose uncertainty varies from patient to patient. Therefore, it is important to evaluate the dose uncertainty on a patient-specific basis, which could be useful for plan evaluation and treatment strategy determination for selected patients.

  10. Method And Aparatus For Improving Resolution In Spectrometers Processing Output Steps From Non-Ideal Signal Sources

    DOE Patents [OSTI]

    Warburton, William K. (1300 Mills St., Menlo Park, CA 94025); Momayezi, Michael (San Francisco, CA)

    2003-07-01T23:59:59.000Z

    A method and apparatus for processing step-like output signals generated by non-ideal, nominally single-pole ("N-1P") devices responding to possibly time-varying, pulse-like input signals of finite duration, wherein the goal is to recover the integrated areas of the input signals. Particular applications include processing step-like signals generated by detector systems in response to absorbed radiation or particles and, more particularly, to digitally processing such step-like signals in high resolution, high rate gamma ray (.gamma.-ray) spectrometers with resistive feedback preamplifiers connected to large volume germanium detectors. Superconducting bolometers can be similarly treated. The method comprises attaching a set of one or more filters to the device's (e.g., preamplifier's) output, capturing a correlated multiple output sample from the filter set in response to a detected event, and forming a weighted sum of the sample values to accurately recover the total area (e.g., charge) of the detected event.

  11. Synthesis of lithium cobalt oxide by single-step soft hydrothermal method

    SciTech Connect (OSTI)

    Kumar Bokinala, Kiran [National Institute for R and D in Electrochemistry and Condensed Matter, Timisoara 30024 (Romania) [National Institute for R and D in Electrochemistry and Condensed Matter, Timisoara 30024 (Romania); CNRS, Universite de Bordeaux, ICMCB, 87 Avenue du Dr. A. Schweitzer, Pessac F-33608 (France); Universitatea Politehnica, Timisoara (Romania); Pollet, M., E-mail: pollet@icmcb-bordeaux.cnrs.fr [CNRS, Universite de Bordeaux, ICMCB, 87 Avenue du Dr. A. Schweitzer, Pessac F-33608 (France); Artemenko, A. [CNRS, Universite de Bordeaux, ICMCB, 87 Avenue du Dr. A. Schweitzer, Pessac F-33608 (France)] [CNRS, Universite de Bordeaux, ICMCB, 87 Avenue du Dr. A. Schweitzer, Pessac F-33608 (France); Miclau, M., E-mail: marinela.miclau@gmail.com [National Institute for R and D in Electrochemistry and Condensed Matter, Timisoara 30024 (Romania); Grozescu, I [National Institute for R and D in Electrochemistry and Condensed Matter, Timisoara 30024 (Romania) [National Institute for R and D in Electrochemistry and Condensed Matter, Timisoara 30024 (Romania); Universitatea Politehnica, Timisoara (Romania)

    2013-02-15T23:59:59.000Z

    Lithium cobalt double oxide LiCoO{sub 2} was synthesized at 220 Degree-Sign C by soft hydrothermal method using Co(OH){sub 2} and LiOH as precursors, LiOH/NaOH as mineralizers and H{sub 2}O{sub 2} as oxidant. The soft hydrothermal synthesis method offers the dual advantage of a much lower synthesis time and a higher purity in comparison with other synthesis methods. The compound was identified by X-ray diffraction and its purity was checked by magnetic and electron magnetic resonance measurements. The grain morphology was studied by Scanning Electron Microscopy and an exponential growth of particle size with synthesis time was observed. - Graphical abstract: Concave cuboctohedrons obtained after 60 h reaction time. Highlights: Black-Right-Pointing-Pointer An optimized soft hydrothermal method for a fast synthesis of high purity LiCoO{sub 2} compound is reported. Black-Right-Pointing-Pointer Both lamellar and cuboctahedral particles could be stabilized. Black-Right-Pointing-Pointer Secondary phases content is lower than 0.1%. Black-Right-Pointing-Pointer Close to surface defects were evidenced using EMR.

  12. HD172189: another step in furnishing one of the best laboratories known for asteroseismic studies

    E-Print Network [OSTI]

    Creevey, O L; Martín-Ruiz, S; Amado, P J; Niemczura, E; VanWinckel, H; Suárez, J C; Rolland, A; Rodler, F; Rodríguez-López, C; Rodríguez, E; Raskin, G; Rainer, M; Poretti, E; Pallé, P; Molina, R; Moya, A; Mathias, P; Guillou, L Le; Hadrava, P; Fabbian, D; Garrido, R; Decin, L; Cutispoto, G; Casanova, V; Broeders, E; Ferro, A Arellano; Aceituno, F

    2009-01-01T23:59:59.000Z

    HD172189 is a spectroscopic eclipsing binary system with a rapidly-rotating pulsating delta Scuti component. It is also a member of the open cluster IC4756. These combined characteristics make it an excellent laboratory for asteroseismic studies. To date, HD172189 has been analysed in detail photometrically but not spectroscopically. For this reason we have compiled a set of spectroscopic data to determine the absolute and atmospheric parameters of the components. We determined the radial velocities (RV) of both components using four different techniques. We disentangled the binary spectra using KOREL, and performed the first abundance analysis on both disentangled spectra. By combining the spectroscopic results and the photometric data, we obtained the component masses, 1.8 and 1.7 solar masses, and radii, 4.0 and 2.4 solar radii, for inclination i = 73.2 degrees, eccentricity e = 0.28, and orbital period 5.70198 days. Effective temperatures of 7600 K and 8100 K were also determined. The measured vsini are 7...

  13. Fast Plasma Shutdowns Obtained With Massive Hydrogenic, Noble and Mixed-Gas Injection in DIII-D

    SciTech Connect (OSTI)

    Wesley, J; Hollmann, E; Jernigan, T; Van Zeeland, M; Baylor, L; Boedo, J; Combs, S; Evans, T; Groth, M; Humphreys, D; Hyatt, A; Izzo, V; James, A; Moyer, R; Parks, P; Rudakov, D; Strait, E; Wu, W; Yu, J

    2008-10-14T23:59:59.000Z

    Massive gas injection (MGI) experiments with H{sub 2}, D{sub 2}, He, Ne and Ar and 'mixed' (H{sub 2} + Ar and D{sub 2} + Ne) gases injected into 'ITER-similar' 1.3-MA H-mode plasmas are described. Gas species, injected quantity Q, delivery time, t{sub inj}, rate-of-rise and intrinsic and added impurities are found to affect the attributes and 'disruption mitigation' efficacies of the resulting fast plasma shutdowns. With sufficient Q and t{sub inj} < {approx}2 ms, all species provide fast (within {le} {approx}3 ms), more-or-less uniform radiative dissipation of the 0.7-MJ plasma thermal energy and fast but benign current decays with reduced vacuum vessel vertical force impulse. With pure and mixed low-Z gases, free-electron densities up to 2 x 10{sup 21} m{sup -3} are obtained. While these densities are high relative to normal tokamak densities, they are still an order of magnitude smaller than the densities required for unconditional mitigation of the runaway electron avalanche process. Key information relevant to the design of effective MGI systems for larger tokamaks and ITER has been obtained and the collective species and Q-variation data provides a rich basis for validation of emerging 2D + t MHD/transport/radiation models.

  14. Domain formation due to surface steps in topological insulator Bi{sub 2}Te{sub 3} thin films grown on Si (111) by molecular beam epitaxy

    SciTech Connect (OSTI)

    Borisova, S.; Kampmeier, J.; Mussler, G.; Grützmacher, D. [Peter Grünberg Institute-9, Forschungszentrum Jülich, Jülich 52425 (Germany) [Peter Grünberg Institute-9, Forschungszentrum Jülich, Jülich 52425 (Germany); Jülich Aachen Research Alliance, Fundamentals of Future Information Technologies, Jülich 52425 (Germany); Luysberg, M. [Peter Grünberg Institute-5 and Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons, Forschungszentrum Jülich, Jülich 52425 (Germany)] [Peter Grünberg Institute-5 and Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons, Forschungszentrum Jülich, Jülich 52425 (Germany)

    2013-08-19T23:59:59.000Z

    The atomic structure of topological insulators Bi{sub 2}Te{sub 3} thin films on Si (111) substrates grown in van der Waals mode by molecular beam epitaxy has been investigated by in situ scanning tunneling microscopy and scanning transmission electron microscopy. Besides single and multiple quintuple layer (QL) steps, which are typical for the step-flow mode of growth, a number of 0.4 QL steps is observed. We determine that these steps originate from single steps at the substrate surface causing domain boundaries in the Bi{sub 2}Te{sub 3} film. Due to the peculiar structure of these domain boundaries the domains are stable and penetrate throughout the entire film.

  15. Demineralization of petroleum cokes and fly ash samples obtained from the upgrading of Athabasca oil sands bitumen

    SciTech Connect (OSTI)

    Majid, A.; Ratcliffe, C.I.; Ripmeester, J.A. (National Research Council of Canada, Ottawa, ON (Canada). Div. of Chemistry)

    1989-01-01T23:59:59.000Z

    Ash reduction of the cokes and fly ash samples derived from the Athabasca oil sands bitumen was attempted by dissolving the mineral matter in acids. The samples used for this investigation included Syncrude fluid coking coke, Suncor delayed coking coke and the two fly ash samples obtained from the combustion of these cokes. All samples were analyzed for C,H,N,O, and S before and after acid demineralization and the analyses results compared. Further, the ash from the samples before and after acid demineralization was analyzed for silica, alumina, iron titanium, nickel and vanadium to assess the acid leaching of these elements. CP/MAS, /sup 13/C NMR spectroscopic study of the demineralized coke and fly ash samples was also attempted.

  16. Characterization and thermal behavior of PrMO{sub 3} (M = Co or Ni) ceramic materials obtained from gelatin

    SciTech Connect (OSTI)

    Aquino, F.M., E-mail: flavyma@hotmail.com [Federal University of Rio Grande of Norte, Laboratory of Catalysis and Refining – NUPRAR, Av. Senador Salgado Filho, 3000, CEP 59078-970, Natal-RN (Brazil); Melo, D.M.A. [Federal University of Rio Grande of Norte, Laboratory of Catalysis and Refining – NUPRAR, Av. Senador Salgado Filho, 3000, CEP 59078-970, Natal-RN (Brazil)] [Federal University of Rio Grande of Norte, Laboratory of Catalysis and Refining – NUPRAR, Av. Senador Salgado Filho, 3000, CEP 59078-970, Natal-RN (Brazil); Pimentel, P.M. [Universidade Federal Rural do Semi-Árido, Campus Angicos, CEP 59515-000, Angicos-RN (Brazil)] [Universidade Federal Rural do Semi-Árido, Campus Angicos, CEP 59515-000, Angicos-RN (Brazil); Braga, R.M.; Melo, M.A.F.; Martinelli, A.E.; Costa, A.F. [Federal University of Rio Grande of Norte, Laboratory of Catalysis and Refining – NUPRAR, Av. Senador Salgado Filho, 3000, CEP 59078-970, Natal-RN (Brazil)] [Federal University of Rio Grande of Norte, Laboratory of Catalysis and Refining – NUPRAR, Av. Senador Salgado Filho, 3000, CEP 59078-970, Natal-RN (Brazil)

    2012-09-15T23:59:59.000Z

    Graphical abstract: The micrograph in figure shows sample calcined at temperature 900 °C. The sample exhibits morphology with considerable porosity and the formation of agglomerated nanometric particles. Gelatin provides the system with a large amount of organic matter, which is then removed during calcinations, favoring the appearance of pores in the material. Highlights: ? Oxides with PrNiO{sub 3} and PrCoO{sub 3} were prepared by new method synthesis. ? The gelatin, through its carboxylate groups and amine, is an efficient director. ? The obtained materials have magnetic properties and application in catalysis. ? The decomposition kinetic study of bonding groups of gelatin with metallic ions that takes part in the synthesis of PrMO{sub 3}. -- Abstract: Metal oxides with perovskite-type structure have attracted considerable interest in recent years due to their magnetic and electrical properties, as well as their catalytic activity. In this study, oxides with PrNiO{sub 3} and PrCoO{sub 3} composition were prepared by using gelatin powder as a precursor agent for its use as a catalyst. The powders obtained were calcined at 700 °C and 900 °C and characterized using the X-ray diffraction, thermal analysis (thermogravimetry and differential thermal analysis), infrared spectroscopy, temperature programed reduction and scanning electron microscopy techniques. Thermogravimetric data using the non-isothermal kinetic models of Flynn and Wall and “Model-free Kinetics” were used to determine the activation energy to study the decomposition kinetics of the ligand groups with system's metallic ions that takes part in the synthesis of PrMO{sub 3} (M = Ni or Co).

  17. Investigation on plasma parameters and step ionization from discharge characteristics of an atmospheric pressure Ar microplasma jet

    SciTech Connect (OSTI)

    Bora, B.; Bhuyan, H.; Favre, M.; Chuaqui, H.; Wyndham, E. [Facultad de Fisica, Pontificia Universidad Catolica de Chile, Ave. Vicuna Mackenna 4860, Santiago (Chile); Kakati, M. [Thermal Plasma Processed Materials Laboratory, Centre of Plasma Physics, Institute for Plasma Research, Sonapur 782 402, Assam (India)

    2012-06-15T23:59:59.000Z

    In this communication, we report a technique to estimate the plasma parameters from the discharge characteristics of a microplasma device, operated in atmospheric pressure on the basis of homogeneous discharge model. By this technique, we investigate the plasma parameters of a microplasma jet produced by microplasma device consisting of coaxial capillary electrodes surrounded by dielectric tube. Our results suggest that the complex dependence of electrical discharge characteristics observed for microplasma device operated with Ar or it admixtures probably signify the existence of step ionization, which is well known in inductively coupled plasma.

  18. Energy Implications of Retrofitting Retail Sector Rooftop Units with Stepped-Speed and Variable-Speed Functionality

    SciTech Connect (OSTI)

    Studer, D.; Romero, R.; Herrmann, L.; Benne, K.

    2012-04-01T23:59:59.000Z

    Commercial retailers understand that retrofitting constant-speed RTU fan motors with stepped- or variable-speed alternatives could save significant energy in most U.S. climate zones. However, they lack supporting data, both real-world and simulation based, on the cost effectiveness and climate zone-specific energy savings associated with this measure. Thus, building managers and engineers have been unable to present a compelling business case for fan motor upgrades to upper management. This study uses whole-building energy simulation to estimate the energy impact of this type of measure so retailers can determine its economic feasibility.

  19. STEPS TO ESTABLISH A REAL-TIME TRANSMISSION MONITORING SYSTEM FOR TRANSMISSION OWNERS AND OPERATORS WITHIN THE

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGY TAXBalancedDepartmentRestrictions onSBBiodieselHeadline| DepartmentSTEPS TO ESTABLISH

  20. Interatomic potentials for ionic systems with density functional accuracy based on charge densities obtained by a neural network

    E-Print Network [OSTI]

    Ghasemi, S Alireza; Saha, Santanu; Goedecker, Stefan

    2015-01-01T23:59:59.000Z

    Based on an analysis of the short range chemical environment of each atom in a system, standard machine learning based approaches to the construction of interatomic potentials aim at determining directly the central quantity which is the total energy. This prevents for instance an accurate description of the energetics of systems where long range charge transfer is important as well as of ionized systems. We propose therefore not to target directly with machine learning methods the total energy but an intermediate physical quantity namely the charge density, which then in turn allows to determine the total energy. By allowing the electronic charge to distribute itself in an optimal way over the system, we can describe not only neutral but also ionized systems with unprecedented accuracy. We demonstrate the power of our approach for both neutral and ionized NaCl clusters where charge redistribution plays a decisive role for the energetics. We are able to obtain chemical accuracy, i.e. errors of less than a mil...

  1. Nickel-cobalt alloy nanosheets obtained from reductive hydrothermal-treatment of nickel-cobalt hydroxide carbonate

    SciTech Connect (OSTI)

    Ghotbi, Mohammad Yeganeh, E-mail: yeganehghotbi@gmail.com [Nanomaterials and Nanotechnology Program, Ceramic Engineering Department, Faculty of Engineering, Malayer University, Malayer (Iran, Islamic Republic of); Jolagah, Ali; Afrasiabi, Hasan-ali [Nanomaterials and Nanotechnology Program, Ceramic Engineering Department, Faculty of Engineering, Malayer University, Malayer (Iran, Islamic Republic of)] [Nanomaterials and Nanotechnology Program, Ceramic Engineering Department, Faculty of Engineering, Malayer University, Malayer (Iran, Islamic Republic of)

    2012-03-15T23:59:59.000Z

    Highlights: Black-Right-Pointing-Pointer An anionic layered material, nickel-cobalt hydroxide carbonate was synthesized. Black-Right-Pointing-Pointer Reductive hydrothermal-treatment of the layered precursor produced an alloy. Black-Right-Pointing-Pointer The alloy is a bimetallic nanostructured nickel-cobalt and a soft magnet material. -- Abstract: Nickel-cobalt hydroxide carbonate, a layered material was synthesized by the co-precipitation method using urea as precipitant agent. This anionic layered material with hexagonal structure is constructed from nickel and cobalt ions within the layers and carbonate anions between the layers. Nickel-cobalt alloy with pure cubic phase was obtained by a reductive hydrothermal-treatment of the layered precursor. Powder X-ray diffraction pattern and Fourier transform infrared spectroscopy confirmed the formation of the initial layered material and its metallic alloy product. That is, the nickel-cobalt alloy has really produced via a wet chemical route for the first time. Magnetic measurement revealed that the alloy sample is a soft magnet material.

  2. Petroleum and geothermal production technology in Russia: Summary of information obtained during informational meetings with several Russian Institutes

    SciTech Connect (OSTI)

    Schafer, D.M.; Glowka, D.A.; Teufel, L.W.

    1995-04-01T23:59:59.000Z

    Russian scientists and engineers have drilled the deepest holes in the world. It is recognized that this experience has given them an expertise in drilling superdeep holes, as well as other aspects of drilling, completions, and geophysics. More and more US oil and gas companies are vigorously expanding their exploration and development into Russia. It is important for them to identify and use Russian technology in drilling, completion, logging, and reservoir characterization to the extent possible, in order to both reduce drilling costs and help support the Russian economy. While these US companies are interested in becoming involved in and/or sponsoring research in Russia, they have been unsure as to which scientists and institutes are working on problems of interest. It was also important to determine in which areas Russian technology is farther advanced than in the West. Such technology could then be commercialized as part of the Industrial Partnering Program. In order to develop a clear understanding of these issues, two Sandia engineers with drilling and completions expertise and a geophysicist with expertise in reservoir analysis traveled to Russia to meet with Russian scientists and engineers to discuss their technologies and areas of interest. This report contains a summary of the information obtained during the visit.

  3. A Simple Approach for Obtaining High Resolution, High Sensitivity ¹H NMR Metabolite Spectra of Biofluids with Limited Mass Supply

    SciTech Connect (OSTI)

    Hu, Jian Zhi; Rommereim, Donald N.; Wind, Robert A.; Minard, Kevin R.; Sears, Jesse A.

    2006-11-01T23:59:59.000Z

    A simple approach is reported that yields high resolution, high sensitivity ¹H NMR spectra of biofluids with limited mass supply. This is achieved by spinning a capillary sample tube containing a biofluid at the magic angle at a frequency of about 80Hz. A 2D pulse sequence called ¹H PASS is then used to produce a high-resolution ¹H NMR spectrum that is free from magnetic susceptibility induced line broadening. With this new approach a high resolution ¹H NMR spectrum of biofluids with a volume less than 1.0 µl can be easily achieved at a magnetic field strength as low as 7.05T. Furthermore, the methodology facilitates easy sample handling, i.e., the samples can be directly collected into inexpensive and disposable capillary tubes at the site of collection and subsequently used for NMR measurements. In addition, slow magic angle spinning improves magnetic field shimming and is especially suitable for high throughput investigations. In this paper first results are shown obtained in a magnetic field of 7.05T on urine samples collected from mice using a modified commercial NMR probe.

  4. Scope and limitations of high energy electron scattering in obtaining relevant structural information about atoms and molecules

    SciTech Connect (OSTI)

    Ketkar, S.N.

    1984-01-01T23:59:59.000Z

    During the course of this work experiments were undertaken to measure the scattering cross-sections for high energy electrons scattering from various target systems. The experiments can be broadly classified into two categories, one dealing with rather small systems and the other dealing with large systems (at least in the view of physicists). Although the experimental aspects, in so much as the experimental measurement of the intensities of the scattered electron is concerned, is the same for both the cases the motivation for performing the experiment is totally different. In the first case, simple atomic and molecular target systems, namely He, H/sub 2/ and D/sub 2/, are used. For such systems, good theoretical framework is available and critical comparisons of experimental cross sections are made with theoretical predictions. Attention is focussed mainly at small momentum transfer (up to 10A/sup -1/), and correlation and binding effects are studied. In the second case, somewhat larger molecular systems, namely naphthalene, anthraquinone, anthracene and dichromium tetraacetate are used. For such systems attention is focused at large momentum transfer (from 10 to 25 A/sup -1/) to obtain structural information about the molecules.

  5. Percutaneous Transcatheter One-Step Mechanical Aortic Disc Valve Prosthesis Implantation: A Preliminary Feasibility Study in Swine

    SciTech Connect (OSTI)

    Sochman, Jan [Institute for Clinical and Experimental Medicine, Intensive Care Unit, Clinic of Cardiology (Czech Republic)], E-mail: jan.sochman@medicon.cz; Peregrin, Jan H.; Rocek, Miloslav [Institute for Clinical and Experimental Medicine, Department of Diagnostic and Interventional Radiology (Czech Republic); Timmermans, Hans A.; Pavcnik, Dusan; Roesch, Josef [Oregon Health and Sciences University, Dotter Interventional Institute (United States)

    2006-02-15T23:59:59.000Z

    Purpose. To evaluate the feasibility of one-step implantation of a new type of stent-based mechanical aortic disc valve prosthesis (MADVP) above and across the native aortic valve and its short-term function in swine with both functional and dysfunctional native valves. Methods. The MADVP consisted of a folding disc valve made of silicone elastomer attached to either a nitinol Z-stent (Z model) or a nitinol cross-braided stent (SX model). Implantation of 10 MADVPs (6 Z and 4 SX models) was attempted in 10 swine: 4 (2 Z and 2 SX models) with a functional native valve and 6 (4 Z and 2 SX models) with aortic regurgitation induced either by intentional valve injury or by MADVP placement across the native valve. MADVP function was observed for up to 3 hr after implantation. Results. MADVP implantation was successful in 9 swine. One animal died of induced massive regurgitation prior to implantation. Four MADVPs implanted above functioning native valves exhibited good function. In 5 swine with regurgitation, MADVP implantation corrected the induced native valve dysfunction and the device's continuous good function was observed in 4 animals. One MADVP (SX model) placed across native valve gradually migrated into the left ventricle. Conclusion. The tested MADVP can be implanted above and across the native valve in a one-step procedure and can replace the function of the regurgitating native valve. Further technical development and testing are warranted, preferably with a manufactured MADVP.

  6. High-resolution wave-theory-based ultrasound reflection imaging using the split-step fourier and globally optimized fourier finite-difference methods

    DOE Patents [OSTI]

    Huang, Lianjie

    2013-10-29T23:59:59.000Z

    Methods for enhancing ultrasonic reflection imaging are taught utilizing a split-step Fourier propagator in which the reconstruction is based on recursive inward continuation of ultrasonic wavefields in the frequency-space and frequency-wave number domains. The inward continuation within each extrapolation interval consists of two steps. In the first step, a phase-shift term is applied to the data in the frequency-wave number domain for propagation in a reference medium. The second step consists of applying another phase-shift term to data in the frequency-space domain to approximately compensate for ultrasonic scattering effects of heterogeneities within the tissue being imaged (e.g., breast tissue). Results from various data input to the method indicate significant improvements are provided in both image quality and resolution.

  7. 5. Kodama, R. et al. Fast heating of ultrahigh-density plasma as a step towards laser fusion ignition. Nature 412, 798802 (2001).

    E-Print Network [OSTI]

    Davis, James C.

    5. Kodama, R. et al. Fast heating of ultrahigh-density plasma as a step towards laser fusion. J. Geophys. Res. 100, 23567­23581 (1995). 13. Hirahara, M. et al. Acceleration and heating of cold

  8. SUN-TO-EARTH CHARACTERISTICS OF TWO CORONAL MASS EJECTIONS INTERACTING NEAR 1 AU: FORMATION OF A COMPLEX EJECTA AND GENERATION OF A TWO-STEP GEOMAGNETIC STORM

    E-Print Network [OSTI]

    Liu, Ying D.

    On 2012 September 30-October 1 the Earth underwent a two-step geomagnetic storm. We examine the Sun-to-Earth characteristics of the coronal mass ejections (CMEs) responsible for the geomagnetic storm with combined heliospheric ...

  9. IEEE Transactions on Power Apparatus and Systems, Vol. PAS-101, No. 6 June 1982 A TWO-STEP COMPENSATION METHOD FOR SOLVING SHORT CIRCUIT PROBLEMS

    E-Print Network [OSTI]

    Gross, George

    -STEP COMPENSATION METHOD FOR SOLVING SHORT CIRCUIT PROBLEMS G. Gross Pacific Gas and Electric Company San Francisco requires that three-phase systems be solved and the representa- tion of mutual couplings in the network

  10. Uncertainty and Sensitivity Analysis Results Obtained in the 1996 Performance Assessment for the Waste Isolation Pilot Plant

    SciTech Connect (OSTI)

    Bean, J.E.; Berglund, J.W.; Davis, F.J.; Economy, K.; Garner, J.W.; Helton, J.C.; Johnson, J.D.; MacKinnon, R.J.; Miller, J.; O'Brien, D.G.; Ramsey, J.L.; Schreiber, J.D.; Shinta, A.; Smith, L.N.; Stockman, C.; Stoelzel, D.M.; Vaughn, P.

    1998-09-01T23:59:59.000Z

    The Waste Isolation Pilot Plant (WPP) is located in southeastern New Mexico and is being developed by the U.S. Department of Energy (DOE) for the geologic (deep underground) disposal of transuranic (TRU) waste. A detailed performance assessment (PA) for the WIPP was carried out in 1996 and supports an application by the DOE to the U.S. Environmental Protection Agency (EPA) for the certification of the WIPP for the disposal of TRU waste. The 1996 WIPP PA uses a computational structure that maintains a separation between stochastic (i.e., aleatory) and subjective (i.e., epistemic) uncertainty, with stochastic uncertainty arising from the many possible disruptions that could occur over the 10,000 yr regulatory period that applies to the WIPP and subjective uncertainty arising from the imprecision with which many of the quantities required in the PA are known. Important parts of this structure are (1) the use of Latin hypercube sampling to incorporate the effects of subjective uncertainty, (2) the use of Monte Carlo (i.e., random) sampling to incorporate the effects of stochastic uncertainty, and (3) the efficient use of the necessarily limited number of mechanistic calculations that can be performed to support the analysis. The use of Latin hypercube sampling generates a mapping from imprecisely known analysis inputs to analysis outcomes of interest that provides both a display of the uncertainty in analysis outcomes (i.e., uncertainty analysis) and a basis for investigating the effects of individual inputs on these outcomes (i.e., sensitivity analysis). The sensitivity analysis procedures used in the PA include examination of scatterplots, stepwise regression analysis, and partial correlation analysis. Uncertainty and sensitivity analysis results obtained as part of the 1996 WIPP PA are presented and discussed. Specific topics considered include two phase flow in the vicinity of the repository, radionuclide release from the repository, fluid flow and radionuclide transport in formations overlying the repository, and complementary cumulative distribution functions used in comparisons with regulatory standards (i.e., 40 CFR 191, Subpart B).

  11. OAK 270 - The use of Lidar/radiometer (LIRAD) in the ARM program to obtain optical properties and microphysics of high and midlevel clouds

    SciTech Connect (OSTI)

    C.M.R. Platt; R.T. Austin; S.A. Young; and G.L. Stephens

    2002-12-13T23:59:59.000Z

    OAK 270 - The use of Lidar/Radiometer (LIRAD) in the ARM program to obtain optical properties and microphysics of high and midlevel clouds

  12. STEPS: A Grid Search Methodology for Optimized Peptide Identification Filtering of MS/MS Database Search Results

    SciTech Connect (OSTI)

    Piehowski, Paul D.; Petyuk, Vladislav A.; Sandoval, John D.; Burnum, Kristin E.; Kiebel, Gary R.; Monroe, Matthew E.; Anderson, Gordon A.; Camp, David G.; Smith, Richard D.

    2013-03-01T23:59:59.000Z

    For bottom-up proteomics there are a wide variety of database searching algorithms in use for matching peptide sequences to tandem MS spectra. Likewise, there are numerous strategies being employed to produce a confident list of peptide identifications from the different search algorithm outputs. Here we introduce a grid search approach for determining optimal database filtering criteria in shotgun proteomics data analyses that is easily adaptable to any search. Systematic Trial and Error Parameter Selection - referred to as STEPS - utilizes user-defined parameter ranges to test a wide array of parameter combinations to arrive at an optimal "parameter set" for data filtering, thus maximizing confident identifications. The benefits of this approach in terms of numbers of true positive identifications are demonstrated using datasets derived from immunoaffinity-depleted blood serum and a bacterial cell lysate, two common proteomics sample types.

  13. Effects of a modular two-step ozone-water and annealing process on silicon carbide graphene

    SciTech Connect (OSTI)

    Webb, Matthew J., E-mail: matthew.webb@cantab.net; Lundstedt, Anna; Grennberg, Helena [Department of Chemistry—BMC, Uppsala University, Box 576, SE-751 23 Uppsala (Sweden); Polley, Craig; Niu, Yuran; Zakharov, Alexei A.; Balasubramanian, Thiagarajan [MAX IV Laboratory, Lund University, 22100 Lund (Sweden); Dirscherl, Kai [DFM—Danish Fundamental Metrology, Matematiktorvet 307, DK-2800 Lyngby (Denmark); Burwell, Gregory; Guy, Owen J. [College of Engineering, Faraday Tower, Singleton Park, Swansea University, Swansea SA2 8PP (United Kingdom); Palmgren, Pål [VG Scienta Scientific AB, Box 15120, Vallongatan 1, SE-750 15 Uppsala (Sweden); Yakimova, Rositsa [Department of Physics, Chemistry, and Biology, Linköping University, SE-581 83 Linköping (Sweden)

    2014-08-25T23:59:59.000Z

    By combining ozone and water, the effect of exposing epitaxial graphene on silicon carbide to an aggressive wet-chemical process has been evaluated after high temperature annealing in ultra high vacuum. The decomposition of ozone in water produces a number of oxidizing species, however, despite long exposure times to the aqueous-ozone environment, no graphene oxide was observed after the two-step process. The systems were comprehensively characterized before and after processing using Raman spectroscopy, core level photoemission spectroscopy, and angle resolved photoemission spectroscopy together with low energy electron diffraction, low energy electron microscopy, and atomic force microscopy. In spite of the chemical potential of the aqueous-ozone reaction environment, the graphene domains were largely unaffected raising the prospect of employing such simple chemical and annealing protocols to clean or prepare epitaxial graphene surfaces.

  14. Circulation Take Steps to

    E-Print Network [OSTI]

    Bandettini, Peter A.

    arterial disease) means clogged arteries in your legs. It raises your risk for heart attack and stroke. You in the heart, clogged arteries in the legs mean you are at higher risk for having a heart attack or stroke. #12, heart attack, or stroke visit www.aboutpad.org. RISK FACTORS #12;QUESTIONS TO ASK YOUR HEALTH CARE

  15. Nevada STEP Training

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andDataNational Library of1, 2007TransmissiontoSystem | Department|NAto

  16. Tencor Alpha-Step

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security AdministrationcontrollerNanocrystallineForeignTechnology-Selection-ProcessHigh-Rateof

  17. Step 4: Project Implementation

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy Usage » SearchEnergyDepartmentScopingOverviewFranklinStatusJ.R. Simplot4: Project

  18. Louisiana STEP Training

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: VegetationEquipment Surfaces and Interfaces Sample6,LocalNuclearandplantsLosAlamos,840Losing3.82

  19. STEP Brochure (Spanish)

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |EnergyonSupport0.pdf5Post-HolidayRequest ForDepartment ofSLIDESHOW:| Department of

  20. Colorado STEP Training

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed New SubstationClean Communities ofCellulosic(SNfactory) | DOEatColonel21 3.96Colorado

  1. To obtain representative temperatures, sensors were made with a length of 35 cm. The stainless steel needles have a diameter of 3 mm. Inside are five

    E-Print Network [OSTI]

    Haak, Hein

    To obtain representative temperatures, sensors were made with a length of 35 cm. The stainless steel needles have a diameter of 3 mm. Inside are five Platinum Pt-100 sensors, that are cascaded in series to obtain a Pt-500 sensor. The sensors are calibrated to retrieve individual calibration

  2. DES 192 INTERNSHIP DOCUMENTATION INSTRUCTIONS Paperwork must be completed, signed, and turned in to the Advising Office in order to obtain

    E-Print Network [OSTI]

    Hernes, Peter J.

    DES 192 INTERNSHIP DOCUMENTATION INSTRUCTIONS Paperwork must be completed, signed, and turned of the quarter) OBJECTIVES OF DESIGN INTERNSHIP CREDIT: Encourage students to obtain applied learning experience's personal and educational goals. To obtain academic credit (units) for an internship, you must: · Have

  3. Fifth International Conference on Document Analysis and Recognition (ICDAR99), Bangalore, India, 1999, pp. 173-176 A Two-step Algorithm and its Parallelization for the Generation of Minimum

    E-Print Network [OSTI]

    Sural, Shamik

    , 1999, pp. 173-176 A Two-step Algorithm and its Parallelization for the Generation of Minimum Containing. This reduces resource requirements and speeds up the subsequent rectangle detection step. The rectangle that completely encloses a geometric pattern. In this paper, we present a two-step MCR detection algorithm and its

  4. First Steps: Initial Planning Details Client point of contact schedules a meeting with the event planner (if applicable).

    E-Print Network [OSTI]

    : § Meeting history (if applicable) ­ if the meeting has occurred before, obtain the details of what was done to the client point of contact to enter into event approval database. · Client point of contact develops agenda into the event approval database. · Client point of contact enters event into event approval database and uploads

  5. Measuring Property Management Risk and Loss: Step One Toward Managing Property on a Foundation of Risk, Cost, and Benefit

    SciTech Connect (OSTI)

    Johnson, Curtis

    1999-05-17T23:59:59.000Z

    This is a period of ever-tightening defense budgets and continuing pressure on the public sector to be more commercial-like, Property policies, practices, and regulations are increasingly being challenged and changed. In these times, we must be leaders in understanding and defining the value of our profession from a commercial standpoint so that we can provide the right services to our customers and explain and defend the value of those services. To do so, we must step outside current property management practices, regulations, and oversight. We must learn to think and speak in the language of those who fund us--a financial language of risk, cost, and benefit. Regardless of regulation and oversight, our bosses are demanding that we demonstrate (financially) the benefits of current practice, or else. This article is intended to be the beginning of an effort to understand and define our profession in terms of risk, cost, and benefit so that we can meet these new challenges. The first step in this effort must be defining and measuring risk, cost, and benefit. Our costs, although sometimes difficult to capture, are easy to understand: they are almost exclusively the effort, both within and without the property management organization, involved in managing property. Unfortunately, property risks and benefits are not so simple or so well understood. Generally, risks and benefits are identified and measured through physical inventory results: potential and actual shortages. This paper will explore the weaknesses in the current understanding and use of shortage information as the yardstick for property management risks and performance. It will define a new framework for understanding the purpose and value of property management. And finally, it will set a course for a new method of measuring and valuing physical inventoty shortages. This new method will yield accurate and useful measures of property management risk and benefit. Once risk and benefit are accurately understood and measured, it will be possible to evaluate, adjust, and explain property management practices and regulations from a commercial, financial perspective; it will be possible for us to be the leaders in redefining the purpose and value of the property management profession for today's environment.

  6. Uptake and release of O{sub 2} by myohemerythrin. Evidence for different rate-determining steps and a caveat

    SciTech Connect (OSTI)

    Lloyd, C.R.; Eyring, E.M.; Ellis, W.R. Jr. [Univ. of Utah, Salt Lake City, UT (United States)

    1995-12-06T23:59:59.000Z

    The oxy adducts of hemoglobins and hemerythrins are photosensitive, enabling the study of O{sub 2} recombination with deoxy forms produced by laser flash photolysis. Results to date have been interpreted in terms of consecutive O{sub 2} recombination equilibria for members of both protein families, indicating that O{sub 2} passage through these protein matrices involves multiple barriers. In relating rate and equilibrium data at physiological temperatures for these proteins, it has been tacitly assumed by many workers that K{sub eq}=k{sub on}/k{sub off}. In this communication, we report results for Themiste zostericola myohemerythrin (Mhr) and demonstrate that this assumption is not valid. Mhr binds dioxygen by reducing it to hydroperoxide; concomitantly, diferrous deoxyMhr is oxidized to the diferric oxy form. The (hydro)peroxo {yields} Fe{sup III} charge-transfer transition, centered at 500 nm, of oxyMhr was used to monitor the kinetics of O{sub 2} uptake and release. Rapid mixings of oxyMhr with sodium dithionite was used to scavenge O{sub 2} in solution, initiating O{sub 2} release from the protein. Rate constants for this reaction as a function of temperature and pressure are plotted and summarized. These results point to a rate-determining step that occurs prior to Fe-O bond formation. 14 refs., 3 figs., 1 tab.

  7. Time step rescaling recovers continuous-time dynamical properties for discrete-time Langevin integration of nonequilibrium systems

    E-Print Network [OSTI]

    David A. Sivak; John D. Chodera; Gavin E. Crooks

    2014-04-09T23:59:59.000Z

    When simulating molecular systems using deterministic equations of motion (e.g., Newtonian dynamics), such equations are generally numerically integrated according to a well-developed set of algorithms that share commonly agreed-upon desirable properties. However, for stochastic equations of motion (e.g., Langevin dynamics), there is still broad disagreement over which integration algorithms are most appropriate. While multiple desiderata have been proposed throughout the literature, consensus on which criteria are important is absent, and no published integration scheme satisfies all desiderata simultaneously. Additional nontrivial complications stem from simulating systems driven out of equilibrium using existing stochastic integration schemes in conjunction with recently-developed nonequilibrium fluctuation theorems. Here, we examine a family of discrete time integration schemes for Langevin dynamics, assessing how each member satisfies a variety of desiderata that have been enumerated in prior efforts to construct suitable Langevin integrators. We show that the incorporation of a novel time step rescaling in the deterministic updates of position and velocity can correct a number of dynamical defects in these integrators. Finally, we identify a particular splitting that has essentially universally appropriate properties for the simulation of Langevin dynamics for molecular systems in equilibrium, nonequilibrium, and path sampling contexts.

  8. Single-step in-situ synthesis and optical properties of ZnSe nanostructured dielectric nanocomposites

    SciTech Connect (OSTI)

    Dey, Chirantan; Rahaman Molla, Atiar; Tarafder, Anal; Karmakar, Basudeb, E-mail: basudebk@cgcri.res.in [CSIR-Central Glass and Ceramic Research Institute, Glass Science and Technology Section, Glass Division, 196, Raja S. C. Mullick Road, 700032 Kolkata (India); Kr Mishra, Manish; De, Goutam [CSIR-Central Glass and Ceramic Research Institute, Nano-Structured Materials Division, 196, Raja S. C. Mullick Road, 700032 Kolkata (India); Goswami, Madhumita; Kothiyal, G. P. [Glass and Advanced Ceramics Division, Bhaba Atomic Research Centre, Trombay, 400085 Mumbai (India)

    2014-04-07T23:59:59.000Z

    This work provides the evidence of visible red photoluminescent light emission from ZnSe nanocrystals (NCs) grown within a dielectric (borosilicate glass) matrix synthesized by a single step in-situ technique for the first time and the NC sizes were controlled by varying only the concentration of ZnSe in glass matrix. The ZnSe NCs were investigated by UV-Vis optical absorption spectroscopy, Raman spectroscopy, and transmission electron microscopy (TEM). The sizes of the ZnSe NCs estimated from the TEM images are found to alter in the range of 2–53?nm. Their smaller sizes of the NCs were also calculated by using the optical absorption spectra and the effective mass approximation model. The band gap enlargements both for carrier and exciton confinements were evaluated and found to be changed in the range of 0–1.0?eV. The Raman spectroscopic studies showed blue shifted Raman peaks of ZnSe at 295 and 315?cm{sup ?1} indicating phonon confinement effect as well as compressive stress effect on the surface atoms of the NCs. Red photoluminescence in ZnSe-glass nanocomposite reveals a broad multiple-peak structure due to overlapping of emission from NC size related electron-hole recombination (?707?nm) and emissions from defects to traps, which were formed due to Se and Zn vacancies signifying potential application in photonics.

  9. Surfactant-directed synthesis of mesoporous films made single-step by a tandem photosol-gel/photocalcination route

    SciTech Connect (OSTI)

    De Paz-Simon, Héloïse; Chemtob, Abraham, E-mail: abraham.chemtob@uha.fr; Croutxé-Barghorn, Céline [Laboratory of Macromolecular Photochemistry and Engineering, ENSCMu, University of Haute-Alsace, 3 bis rue Alfred Werner, 68093 Mulhouse Cedex (France); Rigolet, Séverinne; Michelin, Laure; Vidal, Loïc; Lebeau, Bénédicte [Institut de Science des Matériaux de Mulhouse, UMR-CNRS 7361, University of Haute-Alsace, 3 rue Alfred Werner, 68093 Mulhouse Cedex (France)

    2014-11-01T23:59:59.000Z

    In view of their technological impact in materials chemistry, a simplified and more efficient synthetic route to mesoporous films is highly sought. We report, herein, a smart UV-mediated approach coupling in a one-stage process sol-gel photopolymerization and photoinduced template decomposition/ablation to making mesoporous silica films. Performed at room temperature with a solvent-free solution of silicate precursor and amphiphilic poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) block copolymer, the synthesis relies on photoacid generation to induce the fast formation (?10 min) of mesostructured silica/surfactant domains. Continuation of UV exposure for three additional hours enables subsequent and complete photodegradation of the polyether copolymer, resulting in ordered or disordered mesoporous silica film. One of the most attractive features is that the one-step procedure relies on a continuous illumination provided by the same conventional medium-pressure Hg-Xe arc lamp equipped with a 254 nm reflector to enhance the emission of energetic photons <300 nm. In addition to X-ray diffraction and transmission electron microscopy, time-resolved Fourier transform infrared spectroscopy has proved to be a powerful in situ technique to probe the different chemical transformations accompanying irradiation. Photocalcination strengthens the inorganic network, while allowing to preserve a higher fraction of residual silanol groups compared with thermal calcination. A polyether chain degradation mechanism based on oxygen reactive species-mediated photo-oxidation is proposed.

  10. Method for obtaining gelled hydrocarbon compositions, the compositions according to said method and their application in the hydraulic fracturing of underground formations

    SciTech Connect (OSTI)

    Daccord, G.; Lemanczyk, R.; Vercaemer, C.

    1985-03-26T23:59:59.000Z

    The invention relates to a method for obtaining gelled hydrocarbon compositions, and their application in the hydraulic fracturing of rocks. The gelling method according to the invention uses as an activator a partially neutralized aluminum acid salt.

  11. The Steepest Hurdle in Obtaining a Clean Water Act Section 404 Permit: Complying with EPA's 404 (b)(1) Guidelines' Least Environmentally Damaging Practicable Alternative Requirement

    E-Print Network [OSTI]

    Schutz, Jon

    2005-01-01T23:59:59.000Z

    hurdle" in obtaining a 404 permit. Uram, supra note 1, atFindings, Old Cutler Bay Permit 404(q) Elevation (1990) 4 [Army Corps of Engineers, Permit Elevation, Hartz Mountain

  12. Tetraethylene glycol promoted two-step, one-pot rapid synthesis of indole-3-[1-11C]acetic acid

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

    Lee, Sojeong [Brookhaven National Laboratory (BNL), Upton, NY (United States); Stony Brook Univ., Stony Brook, NY (United States); Qu, Wenchao [Brookhaven National Laboratory (BNL), Upton, NY (United States); Alexoff, David L. [Brookhaven National Laboratory (BNL), Upton, NY (United States); Shea, Colleen [Brookhaven National Laboratory (BNL), Upton, NY (United States); Kim, Dohyun [Brookhaven National Laboratory (BNL), Upton, NY (United States); Schueller, Michael [Brookhaven National Laboratory (BNL), Upton, NY (United States); Fowler, Joanna S. [Brookhaven National Laboratory (BNL), Upton, NY (United States)

    2015-01-01T23:59:59.000Z

    An operationally friendly, two-step, one-pot process has been developed for the rapid synthesis of carbon-11 labeled indole-3-acetic acid ([11]IAA or [11]auxin). By replacing an aprotic polar solvent with tetraethylene glycol, nucleophilic [11]cyanation and alkaline hydrolysis reactions were performed consecutively in a single pot without a time-consuming intermediate purification step. The entire production time for this updated procedure is 55 min, which dramatically simplifies the entire synthesis and reduces the starting radioactivity required for a whole plant imaging study.

  13. Stability of CIGS Solar Cells and Component Materials Evaluated by a Step-Stress Accelerated Degradation Test Method: Preprint

    SciTech Connect (OSTI)

    Pern, F. J.; Noufi, R.

    2012-10-01T23:59:59.000Z

    A step-stress accelerated degradation testing (SSADT) method was employed for the first time to evaluate the stability of CuInGaSe2 (CIGS) solar cells and device component materials in four Al-framed test structures encapsulated with an edge sealant and three kinds of backsheet or moisture barrier film for moisture ingress control. The SSADT exposure used a 15oC and then a 15% relative humidity (RH) increment step, beginning from 40oC/40%RH (T/RH = 40/40) to 85oC/70%RH (85/70) as of the moment. The voluminous data acquired and processed as of total DH = 3956 h with 85/70 = 704 h produced the following results. The best CIGS solar cells in sample Set-1 with a moisture-permeable TPT backsheet showed essentially identical I-V degradation trend regardless of the Al-doped ZnO (AZO) layer thickness ranging from standard 0.12 ?m to 0.50 ?m on the cells. No clear 'stepwise' feature in the I-V parameter degradation curves corresponding to the SSADT T/RH/time profile was observed. Irregularity in I-V performance degradation pattern was observed with some cells showing early degradation at low T/RH < 55/55 and some showing large Voc, FF, and efficiency degradation due to increased series Rs (ohm-cm2) at T/RH ? 70/70. Results of (electrochemical) impedance spectroscopy (ECIS) analysis indicate degradation of the CIGS solar cells corresponded to increased series resistance Rs (ohm) and degraded parallel (minority carrier diffusion/recombination) resistance Rp, capacitance C, overall time constant Rp*C, and 'capacitor quality' factor (CPE-P), which were related to the cells? p-n junction properties. Heating at 85/70 appeared to benefit the CIGS solar cells as indicated by the largely recovered CPE-P factor. Device component materials, Mo on soda lime glass (Mo/SLG), bilayer ZnO (BZO), AlNi grid contact, and CdS/CIGS/Mo/SLG in test structures with TPT showed notable to significant degradation at T/RH ? 70/70. At T/RH = 85/70, substantial blistering of BZO layers on CIGS cell pieces was observed that was not seen on BZO/glass, and a CdS/CIGS sample displayed a small darkening and then flaking feature. Additionally, standard AlNi grid contact was less stable than thin Ni grid contact at T/RH ? 70/70. The edge sealant and moisture-blocking films were effective to block moisture ingress, as evidenced by the good stability of most CIGS solar cells and device components at T/RH = 85/70 for 704 h, and by preservation of the initial blue color on the RH indicator strips. The SSADT experiment is ongoing to be completed at T/RH = 85/85.

  14. Dosimetric comparison of volumetric modulated Arc therapy, step-and-shoot, and sliding window IMRT for prostate cancer

    SciTech Connect (OSTI)

    Schnell, Erich; De La Fuente Herman, Tania; Young, Julie; Hildebrand, Kim; Algan, Ozer; Syzek, Elizabeth; Herman, Terence; Ahmad, Salahuddin [Department of Radiation Oncology, University of Oklahoma Health Sciences Center 800 N.E. 10th St., OKCC L100, Oklahoma City, OK 73104 (United States)

    2012-10-23T23:59:59.000Z

    This study aims to evaluate treatment plans generated by Step-and-Shoot (SS), Sliding Window (SW) and Volumetric Modulated Arc Therapy (VMAT) in order to assess the differences in dose volume histograms of planning target volume (PTV) and organs at risk (OAR), conformity indices, radiobiological evaluations, and plan quality for prostate cancer cases. Six prostate cancer patients treated in our center were selected for this retrospective study. Treatment plans were generated with Eclipse version 8.9 using 10 MV photon beams. For VMAT, Varian Rapid Arc with 1 or 2 arcs, and for SS and SW IMRT, 7-9 fields were used. Each plan had three PTVs with prescription doses of 81, 59.4, and 45 Gy to prostate, to prostate and lymph nodes, and to pelvis, respectively. Doses to PTV and OAR and the conformal indices (COIN) were compared among three techniques. The equivalent uniform dose (EUD), tumor control probability (TCP) and normal tissue complication probability (NTCP) were calculated and compared. The mean doses to the PTV prostate on average were 83 Gy and the percent differences of mean dose among all techniques were below 0.28. For bladder and rectum, the percent differences of mean dose among all techniques were below 2.2. The COIN did not favour any particular delivery method over the other. The TCP was higher with SS and SW for four patients and higher with VMAT for two patients. The NTCP for the rectum was the lowest with VMAT in five out of the six patients. The results show similar target coverage in general.

  15. Tectonophysics January 2014 V. 610 pp. 200-203 Reply to comment on the article "Propagation of a lithospheric tear fault (STEP) through the western

    E-Print Network [OSTI]

    Boyer, Edmond

    of a lithospheric tear fault (STEP) through the western boundary of the Calabrian accretionary wedge offshore disagrees with our identification north of the Alfeo Seamount. A. Argnani is convinced that the tear fault et al., 2013). The track of this fault towards the north could be extended following the position

  16. Arab states seek Libya no-fly zone Regional bloc calls on UN Security Council to take steps to protect civilians from air attack by

    E-Print Network [OSTI]

    Arab states seek Libya no-fly zone Regional bloc calls on UN Security Council to take steps on the United Nations Security Council to impose a no-fly zone over Libya in a bid to protect civilians from air the civilian population of Libya. "The Arab League has officially requested the UN Security Council to impose

  17. The Impact of the Item Types and Number of Solution Steps of Multiple-Choice Items on Item Difficulty and Discrimination and Test Reliability

    E-Print Network [OSTI]

    Atalmis, Erkan Hasan

    2014-08-31T23:59:59.000Z

    The Impact of the Item Types and Number of Solution Steps of Multiple-Choice Items on Item Difficulty and Discrimination and Test Reliability By Erkan Hasan Atalmis Submitted to the graduate degree program in the Department of Psychology... ________________________________ Bruce Frey ________________________________ Marianne Perie ________________________________ Argun Saatcioglu ________________________________ William Skorupski Date Defended: 5/5/14 The Dissertation Committee for Erkan Hasan...

  18. Local Agency Project Manager Checklist The steps below follow those outlined in the Mn/DOT Utility Manual. A PDF of the manual

    E-Print Network [OSTI]

    Minnesota, University of

    Form Contact utility owners Utility Contact List available at http://www.dot.state.mn.us/utility/files/pdf/contacts/contact-utilityLocal Agency Project Manager Checklist The steps below follow those outlined in the Mn/DOT Utility Manual. A PDF of the manual and supporting documents are available at: http://www.dot.state.mn.us/utility

  19. Steps for Confirming a Vendor's Legitimacy 1. Check a vendor's legitimacy begin by calling the vendor's phone number listed to see if they

    E-Print Network [OSTI]

    Steps for Confirming a Vendor's Legitimacy 1. Check a vendor's legitimacy begin by calling the vendor's phone number listed to see if they answer as the business 2. Check online with 3 different telephone sources to see if the phone number is listed for the vendor with the corresponding address 3

  20. Abstract-A mimicry attack is a type of attack where the basic steps of a minimalist `core' attack are used to design multiple

    E-Print Network [OSTI]

    Zincir-Heywood, Nur

    Abstract-A mimicry attack is a type of attack where the basic steps of a minimalist `core' attack are used to design multiple attacks achieving the same objective from the same application. Research in mimicry attacks is valuable in determining and eliminating weaknesses of detectors. In this work, we

  1. Random Utility/Multinomial Logit Model Literature Amemiya, Takeshi. 1977. "On a Two-Step Estimation of a Multivariate Logit Model." Journal

    E-Print Network [OSTI]

    Random Utility/Multinomial Logit Model Literature Amemiya, Takeshi. 1977. "On a Two-Step Estimation,-I.-E. "Random Utility Model for Sportfishing: Some Preliminary Results for Florida." Marine extensive use of the random utility (or discrete choice) model in recent years, but few applications appear

  2. Small Au and Pt Clusters at the Anatase TiO2(101) Surface: Behavior at Terraces, Steps, and Surface Oxygen Vacancies

    E-Print Network [OSTI]

    Diebold, Ulrike

    polymorph of titanium dioxide (TiO2). TiO2 is a versatile oxide material with important applications in many@ecust.edu.cn; diebold@tulane.edu Abstract: The adsorption properties of Au and Pt metal nanoclusters on TiO2 anatase edges. A preference for adsorption at type D-(112) steps is observed, which is probably a result

  3. A Next-Step Planning and R&D Activity for the FES Program Hutch Neilson, Jon Menard, and Michael Zarnstorff

    E-Print Network [OSTI]

    research in a fusion nuclear environment, to component testing, to system integration, to generation of net engaged in fusion R&D are now seriously considering the programs and the fusion nuclear facilities science program is envisioned, with a Fusion Nuclear Science Facility (FNSF) as a major next step

  4. Role of step edges in oxygen vacancy transport into SrTiO3,,001... Department of Physics, University of California at Davis, Davis, California 95616

    E-Print Network [OSTI]

    Zhu, Xiangdong

    Role of step edges in oxygen vacancy transport into SrTiO3,,001... X. D. Zhua Department of Physics deficient. The excess oxygen vacancies in the monolayers are reduced by vacancy diffusion into the bulk. We successive monolayer depositions. We propose that the indiffusion of excess surface oxygen vacancies takes

  5. Steps for Switching to Digest Version of Daily Campus-wide Emails The "digest" version compiles all individual campus-wide emails sent through the Computing

    E-Print Network [OSTI]

    Selmic, Sandra

    Steps for Switching to Digest Version of Daily Campus-wide Emails The "digest" version compiles all) Under "Set Digest Mode," switch to "On." 8) Click the "Submit My Changes" button You're done! You should 24 hour period. To switch to the digest version for all campus-wide emails sent to students, faculty

  6. One person can make a difference. Taking small action steps will help reduce your carbon footprint on the earth. If every-

    E-Print Network [OSTI]

    waste from being created in the first place means that there is less energy wasted and fewer resources all took "One small step for man." Change a light. Replacing a regular light bulb with a compact year just by recycling half your household waste. By recycling and buying products with recycled

  7. Medical Students must obtain approval to invite outside commercial entities and vendors to exhibit at student events and/or other activities.

    E-Print Network [OSTI]

    Leistikow, Bruce N.

    Medical Students must obtain approval to invite outside commercial entities and vendors to exhibit Policies and Procedures Section 2204, Vendor Relationship, 2526, UC Davis Policy and Procedural Manual Guidelines, and the Principles of Vendor Relationships. Medical Students must provide written justification

  8. FULL-SCALE, WIND TUNNEL AND CFD WIND ENGINEERING STUDIES A variety of methods can be used to obtain wind engineering design information. These include

    E-Print Network [OSTI]

    Savory, Eric

    FULL-SCALE, WIND TUNNEL AND CFD WIND ENGINEERING STUDIES A variety of methods can be used to obtain wind engineering design information. These include codes of practice, full-scale, wind tunnel are listed in the table below: Table 1. Relative advantages and disadvantages of wind engineering techniques

  9. Revised: 11/2012 Replacement diplomas may be obtained from the Office of the University Registrar and must be requested by

    E-Print Network [OSTI]

    Swaddle, John

    Revised: 11/2012 Replacement diplomas may be obtained from the Office of the University Registrar and must be requested by the student. To request a replacement diploma, please complete this form and send, VA 23187-8795 (757) 221-2800 Fax: (757) 221-2151 registrar@wm.edu REPLACEMENT DIPLOMA REQUEST FORM

  10. Comparative Biomedical Sciences Strategic Plan March 21, 2011 The goals of the Department of Comparative Biomedical Sciences will be to seek and obtain excellence

    E-Print Network [OSTI]

    1 1 Comparative Biomedical Sciences Strategic Plan March 21, 2011 GOALS The goals of the Department of Comparative Biomedical Sciences will be to seek and obtain excellence in our performance: Developing Leaders in Veterinary and Biomedical Careers: CBS will focus on a learning environment

  11. Subchannel Thermal-Hydraulic Experimental Program (STEP). Volume 1. Mixing in a pressurized water reactor (PWR) rod bundle. Final report

    SciTech Connect (OSTI)

    Barber, A.R.; Zielke, L.A.

    1980-08-01T23:59:59.000Z

    This volume describes an experiment that was performed to determine the mixing characteristics of a pressurized water reactor (PWR) rod bundle. The objective of this project was to improve the subchannel computer code models of the reactor core. The experimental technique was isokinetic subchannel withdrawal of the entire flow from two sample subchannels. Once withdrawn, the sample fluid was condensed and its enthalpy was measured by regenerative heat exchange calorimetry. The test bundle was a 4 x 6 electrically heated array with a 50% power upset. The COBRA IIIC code was used to model the experiment and to determine the value of the thermal mixing coefficient, ..beta.., that was necessary to predict the measured results. Both single- and two-phase data were obtained over a range of PWR operating conditions. The results indicate that both single- and two-phase mixing is small. The COBRA model predicts the enthalpy data using a turbulent mixing coefficient, ..beta.. approx. = 0.002.

  12. Single-Step Syngas-to-Distillates (S2D) Synthesis via Methanol and Dimethyl Ether Intermediates: Final Report

    SciTech Connect (OSTI)

    Dagle, Robert A.; Lebarbier, Vanessa MC; Lizarazo Adarme, Jair A.; King, David L.; Zhu, Yunhua; Gray, Michel J.; Jones, Susanne B.; Biddy, Mary J.; Hallen, Richard T.; Wang, Yong; White, James F.; Holladay, Johnathan E.; Palo, Daniel R.

    2013-11-26T23:59:59.000Z

    The objective of the work was to enhance price-competitive, synthesis gas (syngas)-based production of transportation fuels that are directly compatible with the existing vehicle fleet (i.e., vehicles fueled by gasoline, diesel, jet fuel, etc.). To accomplish this, modifications to the traditional methanol-to-gasoline (MTG) process were investigated. In this study, we investigated direct conversion of syngas to distillates using methanol and dimethyl ether intermediates. For this application, a Pd/ZnO/Al2O3 (PdZnAl) catalyst previously developed for methanol steam reforming was evaluated. The PdZnAl catalyst was shown to be far superior to a conventional copper-based methanol catalyst when operated at relatively high temperatures (i.e., >300°C), which is necessary for MTG-type applications. Catalytic performance was evaluated through parametric studies. Process conditions such as temperature, pressure, gas-hour-space velocity, and syngas feed ratio (i.e., hydrogen:carbon monoxide) were investigated. PdZnAl catalyst formulation also was optimized to maximize conversion and selectivity to methanol and dimethyl ether while suppressing methane formation. Thus, a PdZn/Al2O3 catalyst optimized for methanol and dimethyl ether formation was developed through combined catalytic material and process parameter exploration. However, even after compositional optimization, a significant amount of undesirable carbon dioxide was produced (formed via the water-gas-shift reaction), and some degree of methane formation could not be completely avoided. Pd/ZnO/Al2O3 used in combination with ZSM-5 was investigated for direct syngas-to-distillates conversion. High conversion was achieved as thermodynamic constraints are alleviated when methanol and dimethyl are intermediates for hydrocarbon formation. When methanol and/or dimethyl ether are products formed separately, equilibrium restrictions occur. Thermodynamic relaxation also enables the use of lower operating pressures than what would be allowed for methanol synthesis alone. Aromatic-rich hydrocarbon liquid (C5+), containing a significant amount of methylated benzenes, was produced under these conditions. However, selectivity control to liquid hydrocarbons was difficult to achieve. Carbon dioxide and methane formation was problematic. Furthermore, saturation of the olefinic intermediates formed in the zeolite, and necessary for gasoline production, occurred over PdZnAl. Thus, yield to desirable hydrocarbon liquid product was limited. Evaluation of other oxygenate-producing catalysts could possibly lead to future advances. Potential exists with discovery of other types of catalysts that suppress carbon dioxide and light hydrocarbon formation. Comparative techno-economics for a single-step syngas-to-distillates process and a more conventional MTG-type process were investigated. Results suggest operating and capital cost savings could only modestly be achieved, given future improvements to catalyst performance. Sensitivity analysis indicated that increased single-pass yield to hydrocarbon liquid is a primary need for this process to achieve cost competiveness.

  13. Step edge influence on barrier height and contact area in vertical heterojunctions between epitaxial graphene and n-type 4H-SiC

    SciTech Connect (OSTI)

    Tadjer, M. J., E-mail: marko.tadjer.ctr@nrl.navy.mil; Nyakiti, L. O.; Robinson, Z. [American Society for Engineering Education, Washington, DC 20036 (United States); Anderson, T. J.; Myers-Ward, R. L.; Wheeler, V. D.; Eddy, C. R.; Gaskill, D. K.; Koehler, A. D.; Hobart, K. D.; Kub, F. J. [U.S. Naval Research Laboratory, 4555 Overlook Ave, SW, Washington, DC 20375 (United States)

    2014-02-17T23:59:59.000Z

    Vertical rectifying contacts of epitaxial graphene grown by Si sublimation on the Si-face of 4H-SiC epilayers were investigated. Forward bias preferential conduction through the step edges was correlated by linear current density normalization. This phenomenon was observed on samples with 2.7–5.8 monolayers of epitaxial graphene as determined by X-ray photoelectron spectroscopy. A modified Richardson plot was implemented to extract the barrier height (0.81?eV at 290?K, 0.99?eV at 30?K) and the electrically dominant SiC step length of a Ti/Al contact overlapping a known region of approximately 0.52??m wide SiC terraces.

  14. On the variations of optical property and electronic structure in heavily Al-doped ZnO films during double-step growth process

    SciTech Connect (OSTI)

    Hu, Q. C.; Ding, K., E-mail: kding@fjirsm.ac.cn; Zhang, J. Y.; Yan, F. P.; Pan, D. M.; Huang, F., E-mail: fhuang@fjirsm.ac.cn [Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002 (China); Chiou, J. W., E-mail: jwchiou@nuk.edu.tw [Department of Applied Physics, National University of Kaohsiung, Kaohsiung 811, Taiwan (China)

    2014-01-13T23:59:59.000Z

    We have investigated the variations of optical property and electronic structure in heavily Al-doped ZnO (AZO) films during the growth process, which were formed by first creating Zn vacancies in O{sub 2}-rich atmosphere and second filling the vacancies with Zn atoms in Zn-vapor atmosphere. After the first step, the high-resistance AZO films have the same optical bandgap with nominally undoped ZnO, indicating that negligible variations in the fundamental bandgap happened to the AZO films although Al atom was incorporated into the ZnO lattice. After the second step, once free electrons were brought into the lattice by Zn-filling, the optical transition energy blueshifts due to the band-filling effect. X-ray absorption fine structure measurements suggest that Zn-filling process decreased the unoccupied states of the conduction band, but not raised the conduction band minimum.

  15. A Transform Method of a Force Curve Obtained by Surface Force Apparatus to the Density Distribution of a Liquid on a Surface: An Improved Version

    E-Print Network [OSTI]

    Ken-ichi Amano; Eisuke Tanaka

    2014-12-08T23:59:59.000Z

    We propose a transform method from a force curve obtained by a surface force apparatus (SFA) to a density distribution of a liquid on a surface of the SFA probe. (We emphasize that the transform method is a theory for the experiment.) In the method, two-body potential between the SFA probe and the solvent sphere is modeled as the soft attractive potential with rigid wall. The model potential is more realistic compared with the rigid potential applied in our earlier work. The introduction of the model potential is the improved point of the present transform method. The transform method is derived based on the statistical mechanics of a simple liquid where the simple liquid is an ensemble of small spheres. To derive the transform method, Kirkwood superposition approximation is used. It is found that the transformation can be done by a sequential computation. It is considered that the solvation structure can be obtained more precisely by using the improved transform method.

  16. Google:[Leonid Zakharov] http://w3.pppl.gov/~zakharov LiWall Fusion and its 3 step R&D program

    E-Print Network [OSTI]

    Zakharov, Leonid E.

    Google:[Leonid Zakharov] http://w3.pppl.gov/~zakharov LiWall Fusion and its 3 step R&D program Bibble of the 70s") LiWF NBI heating/fueling + Lithium Pumping PFC. No cold particles except He. vskip1em Issue LiWF Current BBBL-70s concept of "fusion" The target RDF (Reactor Dev.Facility, neutron

  17. Single-Step Syngas-to-Distillates (S2D) Process Based on Biomass-Derived Syngas - A Techno-Economic Analysis

    SciTech Connect (OSTI)

    Zhu, Y.; Jones, S. B.; Biddy, M. J.; Dagle, R. A.; Palo, D. R.

    2012-08-01T23:59:59.000Z

    This study compared biomass gasification based syngas-to-distillate (S2D) systems using techno-economic analysis (TEA). Three cases, state of technology (SOT), goal, and conventional, were compared in terms of performance and cost. The SOT case represented the best available experimental results for a process starting with syngas using a single-step dual-catalyst reactor for distillate generation. The conventional case mirrored a conventional two-step S2D process consisting of separate syngas-to-methanol and methanol-to-gasoline (MTG) processes. The goal case assumed the same performance as the conventional, but with a single-step S2D technology. TEA results revealed that the SOT was more expensive than the conventional and goal cases. The SOT case suffers from low one-pass yield and high selectivity to light hydrocarbons, both of which drive up production cost. Sensitivity analysis indicated that light hydrocarbon yield and single pass conversion efficiency were the key factors driving the high cost for the SOT case.

  18. Influence of multi-step heat treatments in creep age forming of 7075 aluminum alloy: Optimization for springback, strength and exfoliation corrosion

    SciTech Connect (OSTI)

    Arabi Jeshvaghani, R.; Zohdi, H. [Department of Materials Engineering, Tarbiat Modares University, P.O. Box 14115-143, Tehran (Iran, Islamic Republic of)] [Department of Materials Engineering, Tarbiat Modares University, P.O. Box 14115-143, Tehran (Iran, Islamic Republic of); Shahverdi, H.R., E-mail: shahverdi@modares.ac.ir [Department of Materials Engineering, Tarbiat Modares University, P.O. Box 14115-143, Tehran (Iran, Islamic Republic of); Bozorg, M. [Department of Materials Engineering, Tarbiat Modares University, P.O. Box 14115-143, Tehran (Iran, Islamic Republic of)] [Department of Materials Engineering, Tarbiat Modares University, P.O. Box 14115-143, Tehran (Iran, Islamic Republic of); Hadavi, S.M.M. [School of Materials Science and Engineering, MA University of Technology, P.O. Box 16765-3197, Tehran (Iran, Islamic Republic of)] [School of Materials Science and Engineering, MA University of Technology, P.O. Box 16765-3197, Tehran (Iran, Islamic Republic of)

    2012-11-15T23:59:59.000Z

    Multi-step heat treatments comprise of high temperature forming (150 Degree-Sign C/24 h plus 190 Degree-Sign C for several minutes) and subsequent low temperature forming (120 Degree-Sign C for 24 h) is developed in creep age forming of 7075 aluminum alloy to decrease springback and exfoliation corrosion susceptibility without reduction in tensile properties. The results show that the multi-step heat treatment gives the low springback and the best combination of exfoliation corrosion resistance and tensile strength. The lower springback is attributed to the dislocation recovery and more stress relaxation at higher temperature. Transmission electron microscopy observations show that corrosion resistance is improved due to the enlargement in the size and the inter-particle distance of the grain boundaries precipitates. Furthermore, the achievement of the high strength is related to the uniform distribution of ultrafine {eta} Prime precipitates within grains. - Highlights: Black-Right-Pointing-Pointer Creep age forming developed for manufacturing of aircraft wing panels by aluminum alloy. Black-Right-Pointing-Pointer A good combination of properties with minimal springback is required in this component. Black-Right-Pointing-Pointer This requirement can be improved through the appropriate heat treatments. Black-Right-Pointing-Pointer Multi-step cycles developed in creep age forming of AA7075 for improving of springback and properties. Black-Right-Pointing-Pointer Results indicate simultaneous enhancing the properties and shape accuracy (lower springback).

  19. A high-order discontinuous Galerkin method for fluid–structure interaction with efficient implicit–explicit time stepping

    SciTech Connect (OSTI)

    Froehle, Bradley, E-mail: bfroehle@berkeley.edu; Persson, Per-Olof, E-mail: persson@berkeley.edu

    2014-09-01T23:59:59.000Z

    We present a high-order accurate scheme for coupled fluid–structure interaction problems. The fluid is discretized using a discontinuous Galerkin method on unstructured tetrahedral meshes, and the structure uses a high-order volumetric continuous Galerkin finite element method. Standard radial basis functions are used for the mesh deformation. The time integration is performed using a partitioned approach based on implicit–explicit Runge–Kutta methods. The resulting scheme fully decouples the implicit solution procedures for the fluid and the solid parts, which we perform using two separate efficient parallel solvers. We demonstrate up to fifth order accuracy in time on a non-trivial test problem, on which we also show that additional subiterations are not required. We solve a benchmark problem of a cantilever beam in a shedding flow, and show good agreement with other results in the literature. Finally, we solve for the flow around a thin membrane at a high angle of attack in both 2D and 3D, and compare with the results obtained with a rigid plate.

  20. The Polymers for Liquid Radioactive Waste Solidification: a Lost Chapter in the History of Engineering or a Step Forward? - 13529

    SciTech Connect (OSTI)

    Pokhitonov, Yury [V.G. Khlopin Radium Institute, St. Petersburg (Russian Federation)] [V.G. Khlopin Radium Institute, St. Petersburg (Russian Federation); Kelley, Dennis [Pacific Nuclear Solutions, Indianapolis, Indiana (United States)] [Pacific Nuclear Solutions, Indianapolis, Indiana (United States)

    2013-07-01T23:59:59.000Z

    Ideas on the application of polymers for the liquid radioactive waste immobilization go a way back, and the first studies in the area were published 30-40 years ago. One should admit that regardless of the fairly large number of publications appeared in the past years currently the interest in this work came down greatly. It was the successful assimilation and worldwide implementation of the LRW cementation technology caused a slump in the interest in polymers. But today it's safe to say that the situation slowly changes, particularly due to the market appearance of the high-tech polymers manufactured by Nochar Company, and unique properties of these polymers gradually raise the demand in various countries. The results of multiple experiments performed with the simulated solutions have passed the comprehensive tests with actual waste. The economic effect from the implementation of the new technology is defined by the volume reduction of waste coming onto the repository, by the decline in the cost of transportation and of the repository construction on account of cutting down the construction volume. Interesting results have been obtained during the search for the technical decisions that would allow using the polymer materials in the processing technology of the industrial toxic waste. One more promising area of the possible application of polymers should be pointed out. It is the application of polymer materials as the assets for the emergency damage control when the advantages of the polymers become obvious. (authors)