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Sample records for technique activity start

  1. Active Load Control Techniques for Wind Turbines

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

    Active Load Control Techniques for Wind Turbines Scott J. Johnson and C. P. "Case" van Dam Department of Mechanical and Aeronautical Engineering University of California One ...

  2. Getting Started

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

    Getting Started Before you can use or access Hopper, you must have an active NERSC account and valid password. If you don't, follow the "Accounts and Allocations" link in "See ...

  3. Active Seismic Techniques | Open Energy Information

    Open Energy Info (EERE)

    Technique: Seismic Techniques Information Provided by Technique Lithology: Rock unit density influences elastic wave velocities. StratigraphicStructural: Structural geology-...

  4. Active load control techniques for wind turbines.

    SciTech Connect (OSTI)

    van Dam, C.P.; Berg, Dale E.; Johnson, Scott J.

    2008-07-01

    This report provides an overview on the current state of wind turbine control and introduces a number of active techniques that could be potentially used for control of wind turbine blades. The focus is on research regarding active flow control (AFC) as it applies to wind turbine performance and loads. The techniques and concepts described here are often described as 'smart structures' or 'smart rotor control'. This field is rapidly growing and there are numerous concepts currently being investigated around the world; some concepts already are focused on the wind energy industry and others are intended for use in other fields, but have the potential for wind turbine control. An AFC system can be broken into three categories: controls and sensors, actuators and devices, and the flow phenomena. This report focuses on the research involved with the actuators and devices and the generated flow phenomena caused by each device.

  5. Category:Active Seismic Techniques | Open Energy Information

    Open Energy Info (EERE)

    Active Seismic Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Active Seismic Techniques page? For detailed information...

  6. Getting Started

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

    Getting Started Logging in In order to follow this page, you will need an account, a username and a password. If you do not have all of these things please visit the Accounts Page. ...

  7. Hybrid: Starting

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    button highlighted Cruising Button Passing Button Braking Button Stopped Button subbanner graphic: gray bar STARTING When the vehicle is started, the gasoline engine "warms up." If necessary, the electric motor acts as a generator, converting energy from the engine into electricity and storing it in the battery. stage graphic: vertical blue rule Main stage: See through car with battery, engine, and electric motor visible. The car is moving. There are arrows flowing from the gasoline

  8. Getting Started

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

    Started Getting Started Getting a New User Account Fill this form out if you want to request a new PDSF account for yourself... Read More » Accessing PDSF This page describes the basics of logging in to PDSF... Read More » Best Practices A few pointers about the best way to use the PDSF system... Read More » Passwords This page describes how to manage your NERSC/PDSF password. Read More » CHOS Several different Linux environments are provided using CHOS... Read More » Setting Up Your User

  9. Getting started

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

    Getting started Getting started Logging In Users can log into Euclid using the Secure Shell (SSH) protocol 2 with the following command: % ssh -l username euclid.nersc.gov When you successfully log in you will land in your $HOME directory. Euclid is a one node system. All jobs that run on Euclid, e.g. compiles, edits, user jobs, etc,. run on the same node. Sample Program Code: Parallel Hello World Although Euclid was not intended for production runs of MPI codes, it is possible to run small MPI

  10. Getting Started on Edison

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

    Getting Started on Edison Before you can use or access Edison, you must have an active NERSC account and valid password. If you don't, see Accounts and Allocations. Edison should ...

  11. Getting Started

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

    you can use or access Cori, you must have an active NERSC account and valid password. ... NERSC username and password, and to be a member of an allocated project account ("repo"). ...

  12. Getting Started

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

    Before you can use or access Franklin, you must have an active NERSC account and valid password. If you don't, follow the "Accounts and Allocations" link in "See Also" at right. ...

  13. Alaska START Application

    Broader source: Energy.gov [DOE]

    Download the application for the START Program for Community Energy Planning and Projects–Round Three.

  14. START Program Project Sites

    Broader source: Energy.gov [DOE]

    The Strategic Technical Assistance Response Team (START) Program is part of the DOE Office of Indian Energy effort to assist in the development of tribal renewable energy projects. Through START,...

  15. Daylight Savings Time Starts

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

    Daylight Savings Time Starts Daylight Savings Time Starts WHEN: Mar 08, 2015 3:00 AM - 11:59 PM WHERE: World Time Zones CATEGORY: Holiday INTERNAL: Calendar Login Daylight Savings...

  16. Getting Started - Hanford Site

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

    Hanford Site Voluntary Protection Program Getting Started Hanford Site Voluntary Protection Program VPP Home VPP Hanford Site Champions Committee Getting Started Maintaining STAR VPP Communications VPP Conferences Getting Started Email Email Page | Print Print Page | Text Increase Font Size Decrease Font Size History of VPP (PDF) VPP How To Guide (PDF) VPP Getting Started Tools Employee Pocket Guide (PDF) What is a Personal Safety Action Plan (PDF) Picture This (PDF) VPP Tenets Tenet 1 (PDF)

  17. START Program: Alaska

    Broader source: Energy.gov [DOE]

    Overview fact sheet on the selected DOE Office of Indian Energy Strategic Technical Assistance Response Team (START) projects in Alaska.

  18. Webinar: Testing Oxygen Reduction Reaction Activity with the Rotating Disc Electrode Technique

    Broader source: Energy.gov [DOE]

    Video recording of the Fuel Cell Technologies Office webinar, Testing Oxygen Reduction Reaction Activity with the Rotating Disc Electrode Technique, originally presented on March 12, 2013.

  19. Full Hybrid: Starting

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    highlighted Low Speed button Cruising button Passing button Braking button Stopped button STARTING When a full hybrid vehicle is initially started, the battery typically powers all accessories. The gasoline engine only starts if the battery needs to be charged or the accessories require more power than available from the battery. stage graphic: vertical blue rule Main stage: See through car with battery, engine, generator, power split device, and electric motor visible. the car is stopped at an

  20. Stop/Start: Overview

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    highlighted Driving button Braking button subbanner graphic: gray bar OVERVIEW Stop/Start hybrids are not true hybrids since electricity from the battery is not used to propel the vehicle. However, the Stop/Start feature is an important, energy-saving building block used in hybrid vehicles. Stop/Start technology conserves energy by shutting off the gasoline engine when the vehicle is at rest, such as at a traffic light, and automatically re-starting it when the driver pushes the gas pedal to go

  1. Blank Starting Slide

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

    Rewind Generator Rewind Denison Powerhouse Denison Rewind Rewind Contract - Awarded to Alstom May 2004 - 4.56 million - 526 calendar days Denison Rewind Original Schedule - Start...

  2. START Program 2013: Alaska

    Broader source: Energy.gov [DOE]

    The Strategic Technical Assistance Response Team (START) Program is part of the DOE's Office of Indian Energy Policy and Programs effort to assist in the development of tribal renewable energy projects. Through START, Tribes in the 48 contiguous states and Alaska can apply for and are selected to receive technical assistance from DOE and national laboratory experts to move projects closer to implementation.

  3. Testing Oxygen Reduction Reaction Activity with the Rotating Disc Electrode Technique

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

    Testing Oxygen Reduction Reaction Activity with the Rotating Disc Electrode Technique Date: Tuesday, March 12, 2013 Innovation for Our Energy Future Shyam S. Kocha: NREL Yannick Garsany: EXCET/NRL Deborah Myers: ANL https://www1.eere.energy.gov/hydrogenandfuelcells/webinars.html Outline 1) Background 2) Experimental Aspects of RDE Testing 3) Basic Measurement Technique & Analysis 4) Parameters Affecting RDE Activity Measurements 1) Impact of Film Deposition & Drying Techniques 2) Impact

  4. Getting Started at NERSC

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

    NERSC Getting Started at NERSC September 13, 2011 gerbyao NERSC Training Event 10:00 - 12:00 PDT September 13, 2011 Concurrently presented on the web and at NERSC's Oakland Scientific Facility Getting Started at NERSC For New NERSC Users Richard Gerber, NERSC User Services Group Yushu Yao, NERSC User Services Group This training event is intended for new NERSC Users. Hands-on exercises will be interspersed with the presentations. Please register (it's free!) using the Registration link in the

  5. Getting Started at NERSC

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

    NERSC Getting Started at NERSC January 17, 2013 Richard-Gerber.jpg NERSC Training Webinar 10:00 - 12:00 PST January 17, 2013 Presented as a Web Event only Getting Started at NERSC For New NERSC Users Richard Gerber, NERSC User Services Group This training event is intended for new NERSC users. Basic computer skills and some knowledge of how distributed-memory supercomputers work is assumed. Hands-on exercises will be interspersed with the presentations. Please register (it's free!) using the

  6. Getting Started at NERSC

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

    NERSC Getting Started at NERSC June 7, 2011 gerbyao NERSC Training Event 10:00 - 12:00 PDT June 7, 2011 Concurrently presented on the web and at NERSC's Oakland Scientific Facility Getting Started at NERSC For New NERSC Users Richard Gerber, NERSC User Services Group Yushu Yao, NERSC User Services Group This training event is intended for new NERSC Users. Hands-on exercises will be interspersed with the presentations. Please register (it's free!) using the Registration link in the menu on the

  7. Stop/Start: Overview

    Buildings Energy Data Book [EERE]

    Braking button hilighted subbanner graphic: gray bar BRAKING PART 1 Stop/Start vehicles use a combination of regenerative and conventional friction braking to slow the vehicle. In regenerative braking, energy from the wheels turns the electric generator, creating electricity. Using energy from the wheels to turn the generator slows the vehicle. Go to next… stage graphic: vertical blue rule Main stage: See through car with battery, engine, and electric starter/generator visible. The car is

  8. Stop/Start: Driving

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    highlighted Braking button subbanner graphic: gray bar PULLING OUT & DRIVING PART 1 The gasoline engine does not run when the vehicle is at rest. When pulling out, the electric starter/generator uses electricity from the battery to instantly start the gasoline engine---the sole source of propulsion for the vehicle. Go to next… stage graphic: vertical blue rule Main stage: See through car with battery, engine, and electric starter/generator visible. The car is stopped at an intersection.

  9. START Program | Department of Energy

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

    Technical Assistance START Program START Program The U.S. Department of Energy (DOE) Office of Indian ... assists rural Alaska Native communities in developing strategic energy ...

  10. Starting of turbine engines

    SciTech Connect (OSTI)

    Shekleton, J.R.

    1990-05-01

    This patent describes a relatively small turbine engine. It comprises: a rotary turbine wheel; a rotary compressor coupled to the turbine wheel; an annular combustor for receiving air from the compressor and fuel from a fuel source combusting the same and providing gases of combustion to the turbine wheel to drive the same; substantially identical main fuel injectors including fuel injecting nozzles angularly spaced about the compressor; fuel and air from the compressor being introduced into the combustor generally in the tangential direction; a fuel pump; a control schedule valve; and first and second main fuel solenoid valves. The first valve being operable to connect a minority of the injectors to the control schedule valve and the fuel pump for starting the engine, there being an even number of the injectors and the minority of injectors consisting of two diametrically opposite injectors; the first and second valves being operable to connect all of the injectors to the control schedule valve and the pump for causing normal operation of the engine; the engine further being characterized by the absence of start fuel injectors for the combustor.

  11. Alaska START | Department of Energy

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

    START Program » Alaska START Alaska START The U.S. Department of Energy (DOE) Office of Indian Energy Alaska Strategic Technical Assistance Response Team (START) Program assists Alaska Native corporations and federally recognized Alaska Native governments with accelerating clean energy projects. Alaska START is a competitive technical assistance opportunity aimed at: Reducing the cost and use of energy for rural Alaska consumers and communities Increasing local capacity, energy efficiency, and

  12. Passive and Active Neutron Matrix Correction for Heterogeneous Distributions Utilizing the Neutron Imaging Technique

    SciTech Connect (OSTI)

    Villani, M.F.; Croft, St.; Alvarez, E.; Wilkins, C.G.; Stamp, D.; Fisher, J.; Ambrifi, A.; Simone, G.; Bourva, L.C.

    2008-07-01

    Classical Non-Destructive Assay (NDA) Passive Neutron Coincidence Counting (PNCC) and Differential Die-Away (DDA) active neutron interrogation techniques [1, 2] are well suited for determining the gross matrix correction factors for homogenous mass distributions of Special Nuclear Material (SNM) within an interfering waste drum matrix. These measured passive and active matrix correction factors are crucial in quantifying the SNM mass, associated Total Measurement Uncertainty (TMU), and Minimum Detectable Activity (MDA) within the drum. When heterogeneous SNM mass distributions are encountered, the measured SNM mass, TMU and MDA biases introduced may be 100%, or greater, especially for dense hydrogenous matrices. The standard matrix correction factors can be adjusted if a coarse spatial image of the SNM mass, relative to the matrix, is available. The image can then be analyzed to determine the spatially-adjusted, matrix correction factors case by case. This image analysis approach was accomplished by modifying the standard Passive-Active Neutron (PAN) counter design [3] to accommodate a unique data acquisition architecture that supports a newly developed image acquisition and analysis application called the Neutron Imaging Technique (NIT). The NIT functionality supports both PNCC and DDA acquisition and analysis modes and exploits the symmetry between a stored set of factory acquired NIT images with those from the unknown PAN assay. The NIT result is then an adjustment to the classical correction factor reducing, if not removing, the SNM mass bias and revealing the true TMU and MDA values. In this paper we describe the NIT for the PAN design from the software and algorithmic perspectives and how this technique accommodates waste matrix drums that are difficult, from the classical standpoint, if not impossible, to extract meaningful SNM mass, TMU and MDA results. (authors)

  13. Getting Started and Optimization Strategy

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

    Getting Started and Optimization Strategy Getting Started and Optimization Strategy The purpose of this page is to get you started thinking about how to optimize your application for the Knights Landing (KNL) Architecture that will be on Cori. This page will walk you through the high level steps and give an example using a real application that runs at NERSC. How Does Cori Differ From Edison There are several important differences between the Cori (Knights-Landing) node architecture and the

  14. START Program: 48 Contiguous States

    Broader source: Energy.gov [DOE]

    Overview fact sheet on the selected DOE Office of Indian Energy Strategic Technical Assistance Response Team (START) projects in the 48 contiguous states.

  15. START Team | Department of Energy

    Energy Savers [EERE]

    Response Team (START) Program assists in the development of tribal renewable energy projects. ... Ms. Doris has managed state and local policy and technical assistance project teams ...

  16. Eversource- Municipal Smart Start Program

    Office of Energy Efficiency and Renewable Energy (EERE)

    Eversource (previously Public Service of New Hampshire), an electric utility, offers the Smart Start Program to municipal customers. This program assists municipalities in reducing energy...

  17. PSNH- Municipal Smart Start Program

    Broader source: Energy.gov [DOE]

    Public Service of New Hampshire (PSNH), an electric utility, offers the Smart Start Program to Municipal customers. This program assists municipalities in reducing energy consumption and electric...

  18. Getting Started | Argonne National Laboratory

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

    Technical Assistance » ISO 50001 Energy Management Standard » Getting Started with ISO 50001 Getting Started with ISO 50001 Companies use an energy management system (EnMS) to establish the policies and procedures to systematically track, analyze, and improve energy efficiency. ISO 50001, the global energy management systems standard, specifies requirements for establishing, implementing, maintaining, and improving an EnMS. The standard is based upon the Plan-Do-Check-Act management system,

  19. An Analysis Technique for Active Neutron Multiplicity Measurements Based on First Principles

    SciTech Connect (OSTI)

    Evans, Louise G; Goddard, Braden; Charlton, William S; Peerani, Paolo

    2012-08-13

    Passive neutron multiplicity counting is commonly used to quantify the total mass of plutonium in a sample, without prior knowledge of the sample geometry. However, passive neutron counting is less applicable to uranium measurements due to the low spontaneous fission rates of uranium. Active neutron multiplicity measurements are therefore used to determine the {sup 235}U mass in a sample. Unfortunately, there are still additional challenges to overcome for uranium measurements, such as the coupling of the active source and the uranium sample. Techniques, such as the coupling method, have been developed to help reduce the dependence of calibration curves for active measurements on uranium samples; although, they still require similar geometry known standards. An advanced active neutron multiplicity measurement method is being developed by Texas A&M University, in collaboration with Los Alamos National Laboratory (LANL) in an attempt to overcome the calibration curve requirements. This method can be used to quantify the {sup 235}U mass in a sample containing uranium without using calibration curves. Furthermore, this method is based on existing detectors and nondestructive assay (NDA) systems, such as the LANL Epithermal Neutron Multiplicity Counter (ENMC). This method uses an inexpensive boron carbide liner to shield the uranium sample from thermal and epithermal neutrons while allowing fast neutrons to reach the sample. Due to the relatively low and constant fission and absorption energy dependent cross-sections at high neutron energies for uranium isotopes, fast neutrons can penetrate the sample without significant attenuation. Fast neutron interrogation therefore creates a homogeneous fission rate in the sample, allowing for first principle methods to be used to determine the {sup 235}U mass in the sample. This paper discusses the measurement method concept and development, including measurements and simulations performed to date, as well as the potential

  20. Impulsively started incompressible turbulent jet

    SciTech Connect (OSTI)

    Witze, P O

    1980-10-01

    Hot-film anemometer measurements are presented for the centerline velocity of a suddenly started jet of air. The tip penetration of the jet is shown to be proportional to the square-root of time. A theoretical model is developed that assumes the transient jet can be characterized as a spherical vortex interacting with a steady-state jet. The model demonstrates that the ratio of nozzle radius to jet velocity defines a time constant that uniquely characterizes the behavior and similarity of impulsively started incompressible turbulent jets.

  1. Start Your Energy Conversion Devices

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

    | Department of Energy Start 2015 with an #EnergyResolution to Save Money and Energy All Year Long Start 2015 with an #EnergyResolution to Save Money and Energy All Year Long January 19, 2015 - 9:52am Addthis Create an #EnergyResolution to share how you plan to save money and energy in the New Year. | Graphic courtesy of Joelynn Schroeder, National Renewable Energy Laboratory Create an #EnergyResolution to share how you plan to save money and energy in the New Year. | Graphic courtesy of

  2. Starting apparatus for internal combustion engines

    DOE Patents [OSTI]

    Dyches, G.M.; Dudar, A.M.

    1995-01-01

    This report is a patent description for a system to start an internal combustion engine. Remote starting and starting by hearing impaired persons are addressed. The system monitors the amount of current being drawn by the starter motor to determine when the engine is started. When the engine is started the system automatically deactivates the starter motor. Five figures are included.

  3. START Signed | National Nuclear Security Administration | (NNSA)

    National Nuclear Security Administration (NNSA)

    START Signed START Signed Russia Moscow, USSR President Bush signs the Strategic Arms Reduction Treaty (START), which will reduce nuclear weapon stockpiles to 6,000 "accountable" warheads

  4. Project LIBERTY Biorefinery Starts Cellulosic Ethanol Production...

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

    Project LIBERTY Biorefinery Starts Cellulosic Ethanol Production Project LIBERTY Biorefinery Starts Cellulosic Ethanol Production September 3, 2014 - 12:05pm Addthis News Media ...

  5. 2005 Getting Started with Epics Videos

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

    Video Library APS Colloquium Videos * 2007 * 2006 * 2005 * 2004 Getting Started with Epics * 2005 * 2004 2005 Getting Started with Epics Videos ASD Controls and AOD BCDA have...

  6. Rapid starting methanol reactor system

    DOE Patents [OSTI]

    Chludzinski, Paul J.; Dantowitz, Philip; McElroy, James F.

    1984-01-01

    The invention relates to a methanol-to-hydrogen cracking reactor for use with a fuel cell vehicular power plant. The system is particularly designed for rapid start-up of the catalytic methanol cracking reactor after an extended shut-down period, i.e., after the vehicular fuel cell power plant has been inoperative overnight. Rapid system start-up is accomplished by a combination of direct and indirect heating of the cracking catalyst. Initially, liquid methanol is burned with a stoichiometric or slightly lean air mixture in the combustion chamber of the reactor assembly. The hot combustion gas travels down a flue gas chamber in heat exchange relationship with the catalytic cracking chamber transferring heat across the catalyst chamber wall to heat the catalyst indirectly. The combustion gas is then diverted back through the catalyst bed to heat the catalyst pellets directly. When the cracking reactor temperature reaches operating temperature, methanol combustion is stopped and a hot gas valve is switched to route the flue gas overboard, with methanol being fed directly to the catalytic cracking reactor. Thereafter, the burner operates on excess hydrogen from the fuel cells.

  7. An in situ electron microscopy technique for the study of thermally activated reactions in multilayered materials

    SciTech Connect (OSTI)

    Wall, M.A.; Barbee, T.W. Jr.; Weihs, T.P.

    1995-04-14

    A novel in situ transmission electron microscopy technique for the observation of reaction processes in multilayered materials is reported. The technique involves constant heating rate experiments of multilayered materials in image and diffraction modes. Because the fine scale microstructure of multilayered materials is typically a small fraction of the TEM specimen thickness, realistic comparison of the microstructural evolution with that of similarly processed thick foil samples is possible. Such experiments, when well designed, can provide rapid characterization of phase transformations and stability of nano-structured materials. The results of these experiments can be recorded in both video and micrograph format. The results and limitations of this technique will be shown for the Al/Zr and Al/Monel multilayered systems.

  8. Kick-Starting the School Year with Operation Clean Desert

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

    September 10, 2012 Kick-Starting the School Year with Operation Clean Desert School is back in session and Operation Clean Desert was there to give it a kick start! On August 21, 2012, the Operation Clean Desert Teacher's Guide made its debut along with the recently revised companion activity book during the 2012 Educator Appreciation Day & Back To School Fair at The Mirage in Las Vegas, NV. Hundreds of teachers attended the event (hosted by MGM Resorts International) and approximately 150

  9. Property:StartDate | Open Energy Information

    Open Energy Info (EERE)

    StartDate Jump to: navigation, search This is a property of type Date. Pages using the property "StartDate" Showing 25 pages using this property. (previous 25) (next 25) 4 4-County...

  10. Laser-ablated active doping technique for visible spectroscopy measurements on Z.

    SciTech Connect (OSTI)

    Gomez, Matthew Robert

    2013-09-01

    Visible spectroscopy is a powerful diagnostic, allowing plasma parameters ranging from temperature and density to electric and magnetic fields to be measured. Spectroscopic dopants are commonly introduced to make these measurements. On Z, dopants are introduced passively (i.e. a salt deposited on a current-carrying surface); however, in some cases, passive doping can limit the times and locations at which measurements can be made. Active doping utilizes an auxiliary energy source to disperse the dopant independently from the rest of the experiment. The objective of this LDRD project was to explore laser ablation as a method of actively introducing spectroscopic dopants. Ideally, the laser energy would be delivered to the dopant via fiber optic, which would eliminate the need for time-intensive laser alignments in the Z chamber. Experiments conducted in a light lab to assess the feasibility of fibercoupled and open-beam laser-ablated doping are discussed.

  11. Joining techniques for a reduced activation 12Cr steel for inertial fusion energy

    SciTech Connect (OSTI)

    Hunt, R. M.; El-Dasher, B.; Choi, B. W.; Torres, S. G.

    2014-10-01

    At Lawrence Livermore National Laboratory, we are developing a reduced activation ferritic martensitic steel that is based on the ferritic martensitic steel HT-9. As a part of the development of this steel, we tested a series of welding processes for characterization, including conventional welds (electron beam, tungsten inert gas, and laser) as well as solid-state welds (hot isostatic pressing). We also heat treated the joints at various temperatures between 750 °C and 1050 °C to find a suitable normalization scheme. The modified HT-9 reduced activation ferritic martensitic steel appears highly suitable to welding and diffusion bonding. All welds showed good quality fusion zones with insignificant cracking or porosity. Additionally, a heat treatment schedule of 950 °C for one hour caused minimal grain growth while still converging the hardness of the base metal with that of the fusion and heat-affected zones. Also, modified HT-9 diffusion bonds that were created at temperatures of at least 950 °C for two hours at 103 MPa had interface tensile strengths of greater than 600 MPa. The diffusion bonds showed no evidence of increased hardness nor void formation at the diffusion bonded interface.

  12. Research Techniques

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

    Research Techniques Research Techniques Print Coming Soon

  13. Characterization of electrically-active defects in ultraviolet light-emitting diodes with laser-based failure analysis techniques

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

    Miller, Mary A.; Tangyunyong, Paiboon; Edward I. Cole, Jr.

    2016-01-12

    In this study, laser-based failure analysis techniques demonstrate the ability to quickly and non-intrusively screen deep ultraviolet light-emitting diodes(LEDs) for electrically-active defects. In particular, two laser-based techniques, light-induced voltage alteration and thermally-induced voltage alteration, generate applied voltage maps (AVMs) that provide information on electrically-active defect behavior including turn-on bias, density, and spatial location. Here, multiple commercial LEDs were examined and found to have dark defect signals in the AVM indicating a site of reduced resistance or leakage through the diode. The existence of the dark defect signals in the AVM correlates strongly with an increased forward-bias leakage current. This increasedmore » leakage is not present in devices without AVM signals. Transmission electron microscopyanalysis of a dark defect signal site revealed a dislocation cluster through the pn junction. The cluster included an open core dislocation. Even though LEDs with few dark AVM defect signals did not correlate strongly with power loss, direct association between increased open core dislocation densities and reduced LED device performance has been presented elsewhere [M. W. Moseley et al., J. Appl. Phys. 117, 095301 (2015)].« less

  14. NUG 2013: Training - Getting Started at NERSC

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

    Getting Started at NERSC NUG 2013: Training - Getting Started at NERSC February 16, 2013 n logo Friday, Feb. 15 - Training: Getting Started at NERSC NERSC Oakland Scientific Facility 8:30 - Welcome - Richard Gerber, NERSC 9:00 - NERSC Computational and Storage Systems Overview, Charging - Harvey Wasserman, NERSC ( 30 min ) 9:30 - Connecting to NERSC and Transferring Data, David Turner, NERSC ( 30 min ) 10:00 - Accelerating X Applications Using NX, Yushu Yao, NERSC (20 min) 10:20-10:30 - Break

  15. Time to Start Getting Ready for Cori

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

    Time to Start Getting Ready for Cori Time to Start Getting Ready for Cori February 4, 2015 by Richard Gerber Cori is coming and it's time to start getting ready. Yes, NERSC's Intel Xeon Phi-based system is still more than a year away, but if you're not already thinking about how you're going to use it, you need to get started. That's because to get your codes to run well (or maybe at all) on NERSC's first "many-core" system it is going to take more than a simple recompile. It's no

  16. CleanStart | Open Energy Information

    Open Energy Info (EERE)

    search Name: CleanStart Place: McClellan, California Zip: CA 95652 Product: US Business Technology Incubator located in California. Coordinates: 38.668696, -121.394799...

  17. WestStart CALSTART | Open Energy Information

    Open Energy Info (EERE)

    California Zip: 91106 Product: String representation "WestStart-CALST ... nd create jobs." is too long. Coordinates: 29.690847, -95.196308 Show Map Loading map......

  18. START Program: Alaska Strategic Technical Assistance Response...

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

    Assistance Response Team (START) Program is a U.S. Department of Energy Offce of Indian Energy Policy and ... and helps tribal communities strategically plan their energy future. ...

  19. START Alaska Historical Energy Usage Spreadsheet

    Broader source: Energy.gov [DOE]

    Communities applying for the DOE Office of Indian Energy Strategic Technical Assistance Response Team (START) Initiative for Community Energy Planning and Projects Round Two are asked to download...

  20. Starting Points | National Nuclear Security Administration |...

    National Nuclear Security Administration (NNSA)

    Starting Points Kansas City Plant Related Web Pages Summary Kansas City Plant Home Page Kansas City Plant Contracts DOE Directives NNSA Policy System Kansas City Field Office ...

  1. Non destructive multi elemental analysis using prompt gamma neutron activation analysis techniques: Preliminary results for concrete sample

    SciTech Connect (OSTI)

    Dahing, Lahasen Normanshah; Yahya, Redzuan; Yahya, Roslan; Hassan, Hearie

    2014-09-03

    In this study, principle of prompt gamma neutron activation analysis has been used as a technique to determine the elements in the sample. The system consists of collimated isotopic neutron source, Cf-252 with HPGe detector and Multichannel Analysis (MCA). Concrete with size of 10×10×10 cm{sup 3} and 15×15×15 cm{sup 3} were analysed as sample. When neutrons enter and interact with elements in the concrete, the neutron capture reaction will occur and produce characteristic prompt gamma ray of the elements. The preliminary result of this study demonstrate the major element in the concrete was determined such as Si, Mg, Ca, Al, Fe and H as well as others element, such as Cl by analysis the gamma ray lines respectively. The results obtained were compared with NAA and XRF techniques as a part of reference and validation. The potential and the capability of neutron induced prompt gamma as tool for multi elemental analysis qualitatively to identify the elements present in the concrete sample discussed.

  2. New tech fights fires before they start

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

    New tech fights fires before they start New tech fights fires before they start One spark, and like a monster with an unquenchable appetite, a wildfire can burn forests, homes and towns. That's reason enough for the invention of the brand new Simtable, which is being used at Los Alamos National Lab. June 12, 2016 Mars Watch coverage on the Lab's video on KOB4TV New tech fights fires before they start It takes just one spark, and like a monster with an unquenchable appetite, wildfire can burn

  3. Introduction to Benchmarking: Starting a Benchmarking Plan

    Broader source: Energy.gov [DOE]

    Presentation for the Introduction to Benchmarking: Starting a Benchmarking Plan webinar, presented on February 21, 2013 as part of the U.S. Department of Energy's Technical Assistance Program (TAP).

  4. Starting Points | National Nuclear Security Administration | (NNSA)

    National Nuclear Security Administration (NNSA)

    Starting Points Kansas City Plant Related Web Pages Summary Kansas City Plant Home Page Kansas City Plant Contracts DOE Directives NNSA Policy System Kansas City Field Office (KCFO) Home Page List of Applicable Directives in the Current Contract

  5. Assessment of inhalation and ingestion doses from exposure to radon gas using passive and active detecting techniques

    SciTech Connect (OSTI)

    Ismail, A. H.; Jafaar, M. S.

    2011-07-01

    The aim of this study was to assess an environmental hazard of radon exhalation rate from the samples of soil and drinking water in selected locations in Iraqi Kurdistan, passive (CR-39NTDs) and active (RAD7) detecting techniques has been employed. Long and short term measurements of emitted radon concentrations were estimated for 124 houses. High and lower radon concentration in soil samples was in the cities of Hajyawa and Er. Tyrawa, respectively. Moreover, for drinking water, high and low radon concentration was in the cities of Similan and Kelak, respectively. A comparison between our results with that mentioned in international reports had been done. Average annual dose equivalent to the bronchial epithelium, stomach and whole body in the cities of Kelak and Similan are estimated, and it was varied from 0.04{+-}0.01 mSv to 0.547{+-}0.018 mSv, (2.832{+-}0.22)x10{sup -5} to (11.972{+-}2.09)x10{sup -5} mSv, and (0.056 {+-}0.01) x10{sup -5} to (0.239{+-}0.01)x10{sup -5} mSv, respectively. This indicated that the effects of dissolved radon on the bronchial epithelium are much than on the stomach and whole body. (authors)

  6. Eleven Tribes Jump START Clean Energy Projects, Summer 2012 (Newsletter)

    SciTech Connect (OSTI)

    Not Available

    2012-06-01

    This newsletter describes key activities of the DOE Office of Indian Energy Policy and Programs for Summer 2012. The U.S. Department of Energy Office of Indian Energy Policy and Programs (DOE-IE) has selected 11 Tribes - five in Alaska and six in the contiguous United States - to receive on-the-ground technical support for community-based energy efficiency and renewable energy projects as part of DOE-IE's Strategic Technical Assistance Response Team (START) Program. START finalists were selected based on the clarity of their requests for technical assistance and the ability of START to successfully work with their projects or community. Technical experts from DOE and its National Renewable Energy Laboratory (NREL) will work directly with community-based project teams to analyze local energy issues and assist the Tribes in moving their projects forward. In Alaska, the effort will be bolstered by DOE-IE's partnership with the Denali Commission, which will provide additional assistance and expertise, as well as funding to fuel the Alaska START initiative.

  7. Verifying the INF and START treaties

    SciTech Connect (OSTI)

    Ifft, Edward

    2014-05-09

    The INF and START Treaties form the basis for constraints on nuclear weapons. Their verification provisions are one of the great success stories of modern arms control and will be an important part of the foundation upon which the verification regime for further constraints on nuclear weapons will be constructed.

  8. START Renewable Energy Project Development Assistance

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy (DOE) Office of Indian Energy is now accepting applications for the third round of the Strategic Technical Assistance Response Team (START) Renewable Energy Project Development Assistance Program to provide Tribes with technical assistance with furthering the development of community- and commercial-scale renewable energy projects.

  9. Long pulse EBW start-up experiments in MAST

    SciTech Connect (OSTI)

    Shevchenko, V. F.; Baranov, Y. F.; Bigelow, T.; Caughman, J. B.; Diem, S.; Dukes, C.; Finburg, P.; Hawes, J.; Gurl, C.; Griffiths, J.; Mailloux, J.; Peng, M.; Saveliev, A. N.; Takase, Y.; Tanaka, H.; Taylor, G.

    2015-03-12

    Start-up technique reported here relies on a double mode conversion (MC) for electron Bernstein wave (EBW) excitation. It consists of MC of the ordinary (O) mode, entering the plasma from the low field side of the tokamak, into the extraordinary (X) mode at a mirror-polarizer located at the high field side. The X mode propagates back to the plasma, passes through electron cyclotron resonance (ECR) and experiences a subsequent X to EBW MC near the upper hybrid resonance (UHR). Finally the excited EBW mode is totally absorbed at the Doppler shifted ECR. The absorption of EBW remains high even in cold rarefied plasmas. Furthermore, EBW can generate significant plasma current giving the prospect of a fully solenoid-free plasma start-up. First experiments using this scheme were carried out on MAST [1]. Plasma currents up to 33 kA have been achieved using 28 GHz 100kW 90ms RF pulses. Recently experimental results were extended to longer RF pulses showing further increase of plasma currents generated by RF power alone. A record current of 73kA has been achieved with 450ms RF pulse of similar power. The current drive enhancement was mainly achieved due to RF pulse extension and further optimisation of the start-up scenario.

  10. Long pulse EBW start-up experiments in MAST

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

    Shevchenko, V. F.; Baranov, Y. F.; Bigelow, T.; Caughman, J. B.; Diem, S.; Dukes, C.; Finburg, P.; Hawes, J.; Gurl, C.; Griffiths, J.; et al

    2015-03-12

    Start-up technique reported here relies on a double mode conversion (MC) for electron Bernstein wave (EBW) excitation. It consists of MC of the ordinary (O) mode, entering the plasma from the low field side of the tokamak, into the extraordinary (X) mode at a mirror-polarizer located at the high field side. The X mode propagates back to the plasma, passes through electron cyclotron resonance (ECR) and experiences a subsequent X to EBW MC near the upper hybrid resonance (UHR). Finally the excited EBW mode is totally absorbed at the Doppler shifted ECR. The absorption of EBW remains high even inmore » cold rarefied plasmas. Furthermore, EBW can generate significant plasma current giving the prospect of a fully solenoid-free plasma start-up. First experiments using this scheme were carried out on MAST [1]. Plasma currents up to 33 kA have been achieved using 28 GHz 100kW 90ms RF pulses. Recently experimental results were extended to longer RF pulses showing further increase of plasma currents generated by RF power alone. A record current of 73kA has been achieved with 450ms RF pulse of similar power. The current drive enhancement was mainly achieved due to RF pulse extension and further optimisation of the start-up scenario.« less

  11. Starting apparatus for internal combustion engines

    SciTech Connect (OSTI)

    Dyches, G.M.; Dudar, A.M.

    1997-02-11

    An internal combustion engine starting apparatus uses a signal from a curt sensor to determine when the engine is energized and the starter motor should be de-energized. One embodiment comprises a transmitter, receiver, computer processing unit, current sensor and relays to energize a starter motor and subsequently de-energize the same when the engine is running. Another embodiment comprises a switch, current transducer, low-pass filter, gain/comparator, relay and a plurality of switches to energize and de-energize a starter motor. Both embodiments contain an indicator lamp or speaker which alerts an operator as to whether a successful engine start has been achieved. Both embodiments also contain circuitry to protect the starter and to de-energize the engine. 5 figs.

  12. Starting apparatus for internal combustion engines

    DOE Patents [OSTI]

    Dyches, Gregory M.; Dudar, Aed M.

    1997-01-01

    An internal combustion engine starting apparatus uses a signal from a curt sensor to determine when the engine is energized and the starter motor should be de-energized. One embodiment comprises a transmitter, receiver, computer processing unit, current sensor and relays to energize a starter motor and subsequently de-energize the same when the engine is running. Another embodiment comprises a switch, current transducer, low-pass filter, gain/comparator, relay and a plurality of switches to energize and de-energize a starter motor. Both embodiments contain an indicator lamp or speaker which alerts an operator as to whether a successful engine start has been achieved. Both embodiments also contain circuitry to protect the starter and to de-energize the engine.

  13. Analysis of the Impacts of an Early Start for Compliance with the Kyoto Protocol

    Reports and Publications (EIA)

    1999-01-01

    This report describes the Energy Information Administration's analysis of the impacts of an early start, using the same methodology as in Impacts of the Kyoto Protocol on U.S. Energy Markets and Economic Activity, with only those changes in assumptions caused by the early start date.

  14. GettingStartedGuide.PDF | Department of Energy

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

    GettingStartedGuide.PDF&0; GettingStartedGuide.PDF&0; PDF icon GettingStartedGuide.PDF&0; More Documents & Publications PARS II 104 Contractor Monthly Upload Home Energy Score...

  15. Starting Small, Thinking Big - Continuum Magazine | NREL

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

    Photo of two long cabins with a view of one roof, which is covered with solar panels. In the background are forest-covered mountains. New rules for interconnecting solar power systems to the grid in the U.S. Virgin Islands have led to a significant growth in installed solar power in the territory. Photo by Don Buchanan, VIEO Starting Small, Thinking Big NREL helps communities of all sizes and types-from islands and tribes to rural villages and cities-transition to clean energy. NREL is fostering

  16. Energy Department Extends Deadline to Apply for START Tribal...

    Energy Savers [EERE]

    Extends Deadline to Apply for START Tribal Renewable Energy Project Development Assistance to May 22, 2015 Energy Department Extends Deadline to Apply for START Tribal Renewable...

  17. Property:Geothermal/ProjectStartDate | Open Energy Information

    Open Energy Info (EERE)

    Jump to: navigation, search Property Name GeothermalProjectStartDate Property Type Date Description Project Start Date Retrieved from "http:en.openei.orgw...

  18. DOE's Jefferson Lab Receives Approval To Start Construction of...

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

    DOE's Jefferson Lab Receives Approval To Start Construction of 310 Million Upgrade DOE's Jefferson Lab Receives Approval To Start Construction of 310 Million Upgrade NEWPORT ...

  19. Zhengzhou High Tech Start up Investment | Open Energy Information

    Open Energy Info (EERE)

    Zhengzhou High Tech Start up Investment Jump to: navigation, search Name: Zhengzhou High-Tech Start-up Investment Place: Zhengzhou, Henan Province, China Product: Chinese...

  20. Recovering START institutional knowledge (Conference) | SciTech...

    Office of Scientific and Technical Information (OSTI)

    Recovering START institutional knowledge Citation Details In-Document Search Title: Recovering START institutional knowledge You are accessing a document from the Department of ...

  1. Identifying Low pH Active and Lactate-Utilizing Taxa within Oral Microbiome Communities from Healthy Children Using Stable Isotope Probing Techniques

    SciTech Connect (OSTI)

    McLean, Jeffrey S.; Fansler, Sarah J.; Majors, Paul D.; Mcateer, Kathleen; Allen, Lisa Z.; Shirtliff, Mark E.; Lux, Renate; Shi, Wenyuan

    2012-03-05

    Many human microbial infectious diseases including dental caries are polymicrobial in nature and how these complex multi-species communities evolve from a healthy to a diseased state is not well understood. Although many health- or disease-associated oral microbes have been characterized in vitro, their physiology in vivo in the presence of the complex oral microbiome is difficult to determine with current approaches. In addition, about half of these oral species remain uncultivated to date and little is known except their 16S rRNA sequence. Lacking culture-based physiological analyses, the functional roles of uncultivated microorganisms will remain enigmatic despite their apparent disease correlation. To start addressing these knowledge gaps, we applied a novel combination of in vivo Magnetic Resonance Spectroscopy (MRS) with RNA and DNA based Stable Isotope Probing (SIP) to oral plaque communities from healthy children for temporal monitoring of carbohydrate utilization, organic acid production and identification of metabolically active and inactive bacterial species.

  2. Prepermit work starts on California crude line

    SciTech Connect (OSTI)

    Not Available

    1991-04-08

    This paper reports on preliminary work leading to permitting efforts for a 171 mile pipeline to move low gravity crude from giant fields of California to the Los Angeles area. The 20 in., unheated pipeline would cost $180-190 million and could go on stream in 3-3 1/2 years. The project has the backing of partners in development of giant Point Arguello field in the Santa Maria basin off Santa Barbara County, a project blocked from start-up for more than 3 years by permitting wrangles. Pipeline sponsors also have proposed moving oil production from development of Santa Ynez Unit in the Santa Barbara Channel. Point Arguello production is expected to start this year with flow limited to 20,000 b/d, moving moved by pipeline to refineries outside Los Angeles. Point Arguello partners want to ship full Arguello production of 80,000-100,00 b/d by tanker until the PPC project is complete, which the county opposes. The group has appealed the county's denial of an interim tankering permit to the California Coastal Commission, which is expected to hold a hearing on the matter this month. The controversy has been further complicated by other, competing projects designed to move Point Arguello crude to market.

  3. Method and apparatus for starting supersonic compressors

    DOE Patents [OSTI]

    Lawlor, Shawn P

    2013-08-06

    A supersonic gas compressor with bleed gas collectors, and a method of starting the compressor. The compressor includes aerodynamic duct(s) situated for rotary movement in a casing. The aerodynamic duct(s) generate a plurality of oblique shock waves for efficiently compressing a gas at supersonic conditions. A convergent inlet is provided adjacent to a bleed gas collector, and during startup of the compressor, bypass gas is removed from the convergent inlet via the bleed gas collector, to enable supersonic shock stabilization. Once the oblique shocks are stabilized at a selected inlet relative Mach number and pressure ratio, the bleed of bypass gas from the convergent inlet via the bypass gas collectors is effectively eliminated.

  4. Technical Assistance Program: Off to a Running Start (Newsletter)

    SciTech Connect (OSTI)

    Not Available

    2012-02-01

    This newsletter describes key activities of the DOE Office of Indian Energy Policy and Programs for Winter 2012. Between December 2, 2011, and January 15, 2012, 46 American Indian and Alaska Native Tribes submitted applications to receive technical assistance through the program, which provides Tribes with on-the-ground technical support from DOE and National Renewable Energy Laboratory (NREL) staff to help move tribal energy efficiency and renewable energy projects forward. The applications are being considered through the Strategic Technical Assistance Response Team (START) selection process, which incorporates expert reviews and outreach to Tribes who present a need for assistance with their community-based energy efficiency and renewable energy projects. The final successful applicants will be selected based on the clarity of their requests for technical assistance and the ability of START to successfully work with each unique project or community. At least three selected Tribes in Alaska will receive technical assistance between March and May 2012, and up to five selected Tribes in the contiguous United States will receive technical assistance between March and August 2012. During the months of START Program activity, DOE and NREL experts will work in the two locations. In Alaska, START experts will work directly with community-based project teams to analyze local energy issues and provide assistance with energy projects and cost savings initiatives. This effort will be bolstered by DOE-IE's partnership with the Denali Commission, which will provide further assistance and expertise. In the lower 48 states, NREL experts will work with the selected renewable energy START projects to evaluate financial and technical feasibility and provide early development technical assistance to better position the projects for financing and construction. This on-the-ground technical assistance is part of a broader DOE-IE effort to make reliable, accurate technical information

  5. START 48 Contiguous United States | Department of Energy

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

    48 Contiguous United States START 48 Contiguous United States The U.S. Department of Energy (DOE) Office of Indian Energy Strategic Technical Assistance Response Team (START) Program helps competitively selected tribes in the 48 contiguous states, as well as Alaska Native regional corporations, further the development of renewable energy projects. START-supported projects are selected through a competitive application process. Learn more about START projects. The START team is comprised of DOE

  6. Energy Literacy Quick Start Guide | Department of Energy

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

    Quick Start Guide Energy Literacy Quick Start Guide Energy Literacy Quick Start Guide Want to teach about energy but don't know where to start? Our Quick Start Guide will help you take information from the Energy Literacy framework and apply it to your unique classroom--whether you teach physics, environmental science, or even social studies! The guide answers some of your basic questions, such as how Energy Literacy aligns to the Next Generation Science Standards, or where to find fun

  7. Extended Deterrence, Nuclear Proliferation, and START III

    SciTech Connect (OSTI)

    Speed, R.D.

    2000-06-20

    Early in the Cold War, the United States adopted a policy of ''extended nuclear deterrence'' to protect its allies by threatening a nuclear strike against any state that attacks these allies. This threat can (in principle) be used to try to deter an enemy attack using conventional weapons or one using nuclear, chemical, or biological weapons. The credibility of a nuclear threat has long been subject to debate and is dependent on many complex geopolitical factors, not the least of which is the military capabilities of the opposing sides. The ending of the Cold War has led to a significant decrease in the number of strategic nuclear weapons deployed by the United States and Russia. START II, which was recently ratified by the Russian Duma, will (if implemented) reduce the number deployed strategic nuclear weapons on each side to 3500, compared to a level of over 11,000 at the end of the Cold War in 1991. The tentative limit established by Presidents Clinton and Yeltsin for START III would reduce the strategic force level to 2000-2500. However, the Russians (along with a number of arms control advocates) now argue that the level should be reduced even further--to 1500 warheads or less. The conventional view is that ''deep cuts'' in nuclear weapons are necessary to discourage nuclear proliferation. Thus, as part of the bargain to get the non-nuclear states to agree to the renewal of the Nuclear Non-Proliferation Treaty, the United States pledged to work towards greater reductions in strategic forces. Without movement in the direction of deep cuts, it is thought by many analysts that some countries may decide to build their own nuclear weapons. Indeed, this was part of the rationale India used to justify its own nuclear weapons program. However, there is also some concern that deep cuts (to 1500 or lower) in the U.S. strategic nuclear arsenal could have the opposite effect. The fear is that such cuts might undermine extended deterrence and cause a crisis in confidence

  8. Eastman, AP start on coal unit

    SciTech Connect (OSTI)

    1995-10-25

    Eastman Chemical and Air Products and Chemicals (AP) have started construction of a $214-million, coal-to-methanol demonstration unit at Eastmans site in Kingsport, TN. The project is part of the Department of Energy`s clean coal technology program and is receiving $93 million in federal support. The demonstration unit-which will have a methanol capacity of 260 tons/day-will use novel catalyst technology for converting coal-derived synthesis gas (syngas) to methanol. Unlike conventional technology that processes syngas through a fixed bed of dry catalyst particles, the liquid-phase methanol process converts the syngas in a single vessel containing catalysts suspended in mineral oil. The companies say the innovation allows the process to better able handle the gases from coal gasifiers and is more stable and reliable than existing processes. Eastman says it will use the methanol produced by the plant as a chemical feedstock. It currently uses methanol as an intermediate in making acetic anhydride and dimethyl terephthalate. In addition, the companies say the methanol will be evaluated as a feedstock in making methyl tert-butyl ether for reformulated fuels. Eastman also says it will evaluate coproducing dimethyl ether (DME) with the methanol. DME can be used as a fuel additive or blended with methanol for a chemical feedstock, according to Eastman.

  9. The AmeriFlux Data Activity and Data System: An Evolving Collection of Data Management Techniques, Tools, Products and Services

    SciTech Connect (OSTI)

    Boden, Thomas A; Krassovski, Misha B; Yang, Bai

    2013-01-01

    The Carbon Dioxide Information Analysis Center (CDIAC) at Oak Ridge National Laboratory (ORNL), USA has provided scientific data management support for the U.S. Department of Energy and international climate change science since 1982. Over this period, climate change science has expanded from research focusing on basic understanding of geochemical cycles, particularly the carbon cycle, to integrated research addressing climate change impacts, vulnerability, adaptation, and mitigation. Interests in climate change data and information worldwide have grown remarkably and, as a result, so have demands and expectations for CDIAC s data systems. To meet the growing demands, CDIAC s strategy has been to design flexible data systems using proven technologies blended with new, evolving technologies and standards. CDIAC development teams are multidisciplinary and include computer science and information technology expertise, but also scientific expertise necessary to address data quality and documentation issues and to identify data products and system capabilities needed by climate change scientists. CDIAC has learned there is rarely a single commercial tool or product readily available to satisfy long-term scientific data system requirements (i.e., one size does not fit all and the breadth and diversity of environmental data are often too complex for easy use with commercial products) and typically deploys a variety of tools and data products in an effort to provide credible data freely to users worldwide. Like many scientific data management applications, CDIAC s data systems are highly customized to satisfy specific scientific usage requirements (e.g., developing data products specific for model use) but are also designed to be flexible and interoperable to take advantage of new software engineering techniques, standards (e.g., metadata standards) and tools and to support future Earth system data efforts (e.g., ocean acidification). CDIAC has provided data management

  10. Formation Testing Techniques | Open Energy Information

    Open Energy Info (EERE)

    Testing Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Formation Testing Techniques Details Activities (0) Areas (0) Regions (0)...

  11. Kinetic Activation-Relaxation Technique and Self-Evolving Atomistic Kinetic Monte Carlo: Comparison of on-the-fly kinetic Monte Carlo algorithms

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

    Beland, Laurent Karim; Osetskiy, Yury N.; Stoller, Roger E.; Xu, Haixuan

    2015-02-07

    Here, we present a comparison of the Kinetic Activation–Relaxation Technique (k-ART) and the Self-Evolving Atomistic Kinetic Monte Carlo (SEAKMC), two off-lattice, on-the-fly Kinetic Monte Carlo (KMC) techniques that were recently used to solve several materials science problems. We show that if the initial displacements are localized the dimer method and the Activation–Relaxation Technique nouveau provide similar performance. We also show that k-ART and SEAKMC, although based on different approximations, are in agreement with each other, as demonstrated by the examples of 50 vacancies in a 1950-atom Fe box and of interstitial loops in 16,000-atom boxes. Generally speaking, k-ART’s treatment ofmore » geometry and flickers is more flexible, e.g. it can handle amorphous systems, and rigorous than SEAKMC’s, while the later’s concept of active volumes permits a significant speedup of simulations for the systems under consideration and therefore allows investigations of processes requiring large systems that are not accessible if not localizing calculations.« less

  12. Cold-Start Performance and Emissions Behavior of Alcohol Fuels...

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

    Cold-Start Performance and Emissions Behavior of Alcohol Fuels in an SIDI Engine Using Transient Hardware-In-Loop Test Meth Discusses results of cold- and hot-start transient tests ...

  13. Property:ASHRAE 169 Start Date | Open Energy Information

    Open Energy Info (EERE)

    Start Date Jump to: navigation, search This is a property of type Date. Pages using the property "ASHRAE 169 Start Date" Showing 25 pages using this property. (previous 25) (next...

  14. New Jersey SmartStart Buildings- New Construction and Retrofits

    Broader source: Energy.gov [DOE]

    New Jersey SmartStart Buildings is a program sponsored by the New Jersey Board of Public Utilities in partnership with New Jersey’s gas and electric utilities. New Jersey SmartStart Buildings rec...

  15. Green Business in Indian Country Start-Up Award

    Broader source: Energy.gov [DOE]

    Trees, Water, & People is accepting applications for the Green Business in Indian Country Start-Up Award and offering assistance to one selected applicant in starting their own business in a related field.

  16. Construction, Qualification, and Low Rate Production Start-up...

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

    Construction, Qualification, and Low Rate Production Start-up of a DC Bus Capacitor High ... Construction, Qualification, and Low Rate Production Start-up of a DC Bus Capacitor High ...

  17. Property:Building/StartPeriod | Open Energy Information

    Open Energy Info (EERE)

    to: navigation, search This is a property of type Date. Start of the period (first day o the month) Pages using the property "BuildingStartPeriod" Showing 25 pages using this...

  18. AVTA: 2010 Volkswagon Golf Diesel Start-Stop Testing Results

    Broader source: Energy.gov [DOE]

    The Vehicle Technologies Office's Advanced Vehicle Testing Activity carries out testing on a wide range of advanced vehicles and technologies on dynamometers, closed test tracks, and on-the-road. These results provide benchmark data that researchers can use to develop technology models and guide future research and development. The following reports describe results of testing done on a 2010 Volkswagon Golf Diesel vehicle with stop-start technology. Baseline data, which provides a point of comparison for the other test results, was collected at two different research laboratories. Baseline and other data collected at Idaho National Laboratory is in the attached documents. Baseline and battery testing data collected at Argonne National Laboratory is available in summary and CSV form on the Argonne Downloadable Dynometer Database site (http://www.anl.gov/energy-systems/group/downloadable-dynamometer-databas...). Taken together, these reports give an overall view of how this vehicle functions under extensive testing.

  19. AVTA: 2010 Mazda 3 Hatchback Start-Stop Testing Results

    Broader source: Energy.gov [DOE]

    The Vehicle Technologies Office's Advanced Vehicle Testing Activity carries out testing on a wide range of advanced vehicles and technologies on dynamometers, closed test tracks, and on-the-road. These results provide benchmark data that researchers can use to develop technology models and guide future research and development. The following reports describe results of testing done on a 2010 Mazda3 hatchback with stop-start technology. Baseline and other data collected at Idaho National Laboratory is in the attached documents. Baseline and battery testing data collected at Argonne National Laboratory is available in summary and CSV form on the Argonne Downloadable Dynometer Database site (http://www.anl.gov/energy-systems/group/downloadable-dynamometer-databas...). Taken together, these reports give an overall view of how this vehicle functions under extensive testing.

  20. PHEV Engine Cold Start Emissions Management | Department of Energy

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

    Cold Start Emissions Management PHEV Engine Cold Start Emissions Management Coordination of engine and powertrain supervisory control strategies to minimize cold start emissions p-05_chambon.pdf (369.94 KB) More Documents & Publications PHEV Engine Control and Energy Management Strategy PHEV Engine Control and Energy Management Strategy PHEV Engine Control and Energy Management Strategy

  1. Start-up control system and vessel for LMFBR

    DOE Patents [OSTI]

    Durrant, Oliver W.; Kakarala, Chandrasekhara R.; Mandel, Sheldon W.

    1987-01-01

    A reflux condensing start-up system includes a steam generator, a start-up vessel connected parallel to the steam generator, a main steam line connecting steam outlets of the steam generator and start-up vessel to a steam turbine, a condenser connected to an outlet of the turbine and a feedwater return line connected between the condenser and inlets of the steam generator and start-up vessel. The start-up vessel has one or more heaters at the bottom thereof for heating feedwater which is supplied over a start-up line to the start-up vessel. Steam is thus generated to pressurize the steam generator before the steam generator is supplied with a heat transfer medium, for example liquid sodium, in the case of a liquid metal fast breeder reactor. The start-up vessel includes upper and lower bulbs with a smaller diameter mid-section to act as water and steam reservoirs. The start-up vessel can thus be used not only in a start-up operation but as a mixing tank, a water storage tank and a level control at low loads for controlling feedwater flow.

  2. Start-up control system and vessel for LMFBR

    DOE Patents [OSTI]

    Durrant, Oliver W.; Kakarala, Chandrasekhara R.; Mandel, Sheldon W.

    1987-01-01

    A reflux condensing start-up system comprises a steam generator, a start-up vessel connected parallel to the steam generator, a main steam line connecting steam outlets of the steam generator and start-up vessel to a steam turbine, a condenser connected to an outlet of the turbine and a feedwater return line connected between the condenser and inlets of the steam generator and start-up vessel. The start-up vessel has one or more heaters at the bottom thereof for heating feedwater which is supplied over a start-up line to the start-up vessel. Steam is thus generated to pressurize the steam generator before the steam generator is supplied with a heat transfer medium, for example liquid sodium, in the case of a liquid metal fast breeder reactor. The start-up vessel includes upper and lower bulbs with a smaller diameter mid-section to act as water and steam reservoirs. The start-up vessel can thus be used not only in a start-up operation but as a mixing tank, a water storage tank and a level control at low loads for controlling feedwater flow.

  3. Getting Started | U.S. DOE Office of Science (SC)

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

    Getting Started User Facilities User Facilities Home User Facilities at a Glance User Resources Getting Started User Safety Access Models User Agreements Data Management Resources Acknowledging User Facilities User Statistics Policies and Processes Frequently Asked Questions User Facility Science Highlights User Facility News Contact Information Office of Science U.S. Department of Energy 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-5430 User Resources Getting Started Print Text

  4. Energy Literacy Framework A Quick Start Guide for Educators

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

    Framework A Quick Start Guide for Educators Energy - it's everywhere! When you turn on the lights, listen to the radio, heat your home, fuel your car, or use a computer, you are using energy. Energy is crucial to every- thing we do and experience. Understanding energy can help us make better informed decisions about our homes, communities, and our nation. If you are new to energy education, then the following answers to questions about Energy Literacy will help you get started. Start thinking

  5. Cold-Start Emissions Control in Hybrid Vehicles Equipped with...

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

    Adsorber for Hydrocarbons and NOx Cold-Start Emissions Control in Hybrid Vehicles Equipped with a Passive Adsorber for Hydrocarbons and NOx Reports results from study of ...

  6. Eleven Tribes Jump START Clean Energy Projects, Summer 2012 ...

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

    ... and Kevin Davidson of the Hualapai Tribe Planning and Economic Development Department discuss utility-scale solar and wind project potential during a START site visit in Arizona. ...

  7. 20 MW Maibarara Geothermal Power Project Starts Commercial Operations...

    Open Energy Info (EERE)

    02092014 DOI Not Provided Check for DOI availability: http:crossref.org Online Internet link for 20 MW Maibarara Geothermal Power Project Starts Commercial Operations...

  8. Property:Incentive/StartDateString | Open Energy Information

    Open Energy Info (EERE)

    Pages using the property "IncentiveStartDateString" Showing 25 pages using this property. (previous 25) (next 25) 3 30% Business Tax Credit for Solar (Vermont) +...

  9. NNSA Authorizes Start-Up of Highly Enriched Uranium Materials...

    National Nuclear Security Administration (NNSA)

    Authorizes Start-Up of Highly Enriched Uranium Materials Facility at Y-12 | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the...

  10. Transfer Activity Last 8 Days

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

    Activity Last 8 Days Transfer Activity Last 8 Days These graphs show the transfer activity statistics for the past eight days with the most recent day shown first. BE CAREFUL because the graphs are autoscaling - check the scales on each axis before you compare graphs. Transfers started/in progress (Both Systems) Transfers started/in progress (Both Systems) Transfers started/in progress (Both Systems) Transfers started/in progress (Both Systems) Transfers started/in progress (Both Systems)

  11. Vehicle Technologies Office: AVTA- Start-Stop (Micro) Hybrid Vehicles Performance Data

    Broader source: Energy.gov [DOE]

    The Advanced Vehicle Testing Activity (AVTA) uses standard procedures and test specifications to test and collect data from vehicles on dynamometers, closed test tracks, and on-the-road. Performance and testing data on the stop-start hybrid versions of the following vehicles is available: 2010 Smart Fortwo, 2010 Volkswagen Golf Diesel, and 2010 Mazda3 Hatchback.

  12. Major Projects with Quick Starts & Jobs Creation Office of Clean Coal

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

    Major Projects with Quick Starts & Jobs Creation Office of Clean Coal Summary of Projects and Job Creation The following table outlines the near-term possibilities for projects that capture and sequester carbon from coal-based systems. The potential jobs associated with these activities are listed along with likely construction and operation dates. Since the funding is primarily for construction and associated activities, a rough estimate of 30 job years per $1 million dollars expended was

  13. Getting Started on ALCF Resources | Argonne Leadership Computing Facility

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

    Getting Started on ALCF Resources Start Date: Aug 24 2016 - 9:00am to 12:30pm Location: Webinar Event Website: http://www.alcf.anl.gov/workshops/getting-started-alcf-resources-videoco... This essential introductory videoconference is intended for new ALCF users, but is open to any user interested in learning how to make the best use of our systems. This interactive course covers the basics you'll need to get your projects up and running. Learn ways to minimize wait time in job queues; receive

  14. DOE Provides $30 Million to Jump Start Bioenergy Research Centers |

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

    Department of Energy 30 Million to Jump Start Bioenergy Research Centers DOE Provides $30 Million to Jump Start Bioenergy Research Centers October 1, 2007 - 2:49pm Addthis DOE Bioenergy Research Center Investment Tops $400 Million WASHINGTON, DC-The U.S. Department of Energy (DOE) today announced it has invested nearly $30 million in end-of-fiscal-year (2007) funds to accelerate the start-up of its three new Bioenergy Research Centers, bringing total DOE Bioenergy Research Center investment

  15. Getting Started on ALCF Resources | Argonne Leadership Computing Facility

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

    Getting Started on ALCF Resources Start Date: Sep 15 2016 - 9:00am to 12:30pm Location: Webinar Event Website: http://www.alcf.anl.gov/workshops/getting-started-alcf-resources-videoco... This essential introductory videoconference is intended for new ALCF users, but is open to any user interested in learning how to make the best use of our systems. This interactive course covers the basics you'll need to get your projects up and running. Learn ways to minimize wait time in job queues; receive

  16. Subfreezing Start/Stop Protocol for and Advanced Metallic Open...

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

    Subfreezing StartStop Protocol for and Advanced Metallic Open-Flowfield Fuel Cell Stack Part of a 100 million fuel cell award announced by DOE Secretary Bodman on Oct. 25, 2006. ...

  17. Gasoline Compression Ignition - Start of Injection Timing Sweep...

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

    Contact Us For more information, contact Greg Cunningham at (630) 252-8232 or media@anl.gov. Gasoline Compression Ignition - Start of Injection Timing Sweep (VERIFI) Share Topic...

  18. St. Gobain Innovation Competition for Start-Ups

    Broader source: Energy.gov [DOE]

    The Saint-Gobain NOVA Innovation Competition rewards start-ups offering the most innovative solutions in the field of habitat, sustainable products, advanced materials, renewable energy sources and high-efficiency building solutions.

  19. START Site Visit Examines Viability of Tribal Community Solar Project

    Broader source: Energy.gov [DOE]

    Members of the Office of Indian Energy START team, the Southern Ute Tribe, and Southern Ute Alternative Energy meet to discuss a potential solar photovoltaic project using a community ownership model.

  20. Testimony Before the Senate Armed Services Committee, New START Treaty

    National Nuclear Security Administration (NNSA)

    Hearing | National Nuclear Security Administration | (NNSA) Testimony Before the Senate Armed Services Committee, New START Treaty Hearing July 20, 2010 Chairman Levin, Ranking Member McCain, and Members of the Committee, thank you for the opportunity to testify on the Treaty between the United States of America and the Russian Federation on Measures for the Further Reduction and Limitation of Strategic Offensive Arms, known as "New START." Last month, Secretary of Energy Chu

  1. Getting Started with ISO 50001 | Department of Energy

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

    ISO 50001 Energy Management Standard » Getting Started with ISO 50001 Getting Started with ISO 50001 Companies use an energy management system (EnMS) to establish the policies and procedures to systematically track, analyze, and improve energy efficiency. ISO 50001, the global energy management systems standard, specifies requirements for establishing, implementing, maintaining, and improving an EnMS. The standard is based upon the Plan-Do-Check-Act management system, which is familiar to many

  2. Minto Upgrades Community Lodge with START Support | Department of Energy

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

    Minto Upgrades Community Lodge with START Support Minto Upgrades Community Lodge with START Support October 20, 2014 - 5:00pm Addthis With DOE support, workers weatherize the exterior of the Lakeview Lodge in Minto, Alaska. Photo from Russell Snyder, Interior Regional Housing Authority, NREL 31796 With DOE support, workers weatherize the exterior of the Lakeview Lodge in Minto, Alaska. Photo from Russell Snyder, Interior Regional Housing Authority, NREL 31796 The Lakeview Lodge is the heart of

  3. Belarus ratifies START I pact; Ukraine remains last holdout

    SciTech Connect (OSTI)

    Lockwood, D.

    1993-03-01

    The Belarus Parliment ratified START I by a vote of 218 to 1 on February 4, 1993. The Parliment also voted to accede to the nuclear Non-Proliferation Treaty as a non-nuclear weapon state. The Parliment also passed two companion accords with Russia to coordinate the withdrawal of the ICBMs now in Belarus and to define the legal states of those weapons. Ukraine remains the only party to START I that has not yet approved the treaty.

  4. Department of Energy Announces Start of Western Area Power Administration

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

    Recovery Act Project | Department of Energy Start of Western Area Power Administration Recovery Act Project Department of Energy Announces Start of Western Area Power Administration Recovery Act Project September 16, 2009 - 12:00am Addthis WASHINGTON, DC - With the goal of bringing new jobs and green power to the West, Energy Secretary Steven Chu announced today a large-scale transmission project to be financed using funding from the American Recovery and Reinvestment Act. The Western Area

  5. Waterflood surveillance techniques; A reservoir management approach

    SciTech Connect (OSTI)

    Thakur, G.C. )

    1991-10-01

    The reservoir management aspects of waterflooding span the time before the start of waterflood to the time when the secondary recovery either is uneconomic or is changed to an enhanced recovery. This paper reviews waterflood techniques and reports on surveillance techniques in the management of waterflooding of oil wells.

  6. Activation

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

    Emergency Response Services Activated At the Waste Isolation Pilot Plant CARLSBAD, N.M., 252014, 11:43 a.m. (MDT) - Emergency response services have been activated at the Waste...

  7. Stop and Restart Effects on Modern Vehicle Starting System Components

    SciTech Connect (OSTI)

    Windover, Paul R.; Owens, Russell J.; Levinson, Terry M.; Laughlin, Michael; Gaines, Linda

    2015-01-01

    Many drivers of personal and commercial vehicles believe that turning the vehicle off and on frequently instead of idling will cause premature wear of the starter system (starter motor and starter battery). As a result, they are concerned that the replacement cost of the starter motor and/or battery due to increased manual engine cycling would be more than the cumulative cost of the fuel saved by not idling unnecessarily. A number of variables play a role in addressing this complex concern, including the number of starting cycles per day, the time between starting cycles, the intended design life of the starting system, the amount of fuel used to restart an engine, and the cumulative cost of the saved fuel. Qualitative and quantitative information from a variety of sources was used to develop a life-cycle economic model to evaluate the cost and quantify the realistic factors that are related to the permissible frequency of starter motor cycles for the average vehicle to economically minimize engine idle time. Annual cost savings can be calculated depending on shutdown duration and the number of shutdown cycles per day. Analysis shows that cost savings are realized by eliminating idling exceeding one minute by shutting down the engine and restarting it. For a typical motorist, the damage to starting system components resulting from additional daily start cycles will be negligible. Overall, it was found that starter life is mostly dependent on the total number of start cycles, while battery life is more dependent on ensuring a full charge between start events.

  8. Electrochemical Techniques

    SciTech Connect (OSTI)

    Chen, Gang; Lin, Yuehe

    2008-07-20

    Sensitive and selective detection techniques are of crucial importance for capillary electrophoresis (CE), microfluidic chips, and other microfluidic systems. Electrochemical detectors have attracted considerable interest for microfluidic systems with features that include high sensitivity, inherent miniaturization of both the detection and control instrumentation, low cost and power demands, and high compatibility with microfabrication technology. The commonly used electrochemical detectors can be classified into three general modes: conductimetry, potentiometry, and amperometry.

  9. Modeling and cold start in alcohol-fueled engines

    SciTech Connect (OSTI)

    Markel, A.J.; Bailey, B.K.

    1998-05-01

    Neat alcohol fuels offer several benefits over conventional gasoline in automotive applications. However, their low vapor pressure and high heat of vaporization make it difficult to produce a flammable vapor composition from a neat alcohol fuel during a start under cold ambient conditions. Various methods have been introduced to compensate for this deficiency. In this study, the authors applied computer modeling and simulation to evaluate the potential of four cold-start technologies for engines fueled by near-neat alcohol. The four technologies were a rich combustor device, a partial oxidation reactor, a catalytic reformer, and an enhanced ignition system. The authors ranked the competing technologies by their ability to meet two primary criteria for cold starting an engine at {minus}25 deg C and also by several secondary parameters related to commercialization. Their analysis results suggest that of the four technologies evaluated, the enhanced ignition system is the best option for further development.

  10. scriptEnv - loading modules before starting a script

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

    scriptEnv - loading modules before starting a script scriptEnv - loading modules before starting a script In some cases a script needs to load modules before the script can be executed, but it can often be inconvenient or impossible to provide wrapper scripts which load the needed modules. CGI scripts on the gpweb resources or in the NERSC portal environment which require the genepool-specific python/perl/R or databases configuration modules are a strong example of this. NERSC provides the

  11. Edison Down for About One Month Starting June 24

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

    Down for About One Month Starting June 24 Edison Down for About One Month Starting June 24 June 4, 2013 by Francesca Verdier The Edison Phase II system arrives at NERSC in June, and will boost the Phase I core count by more than a factor of 10. In order to integrate the new components and upgrade existing ones, the entire Edison system will be unavailable for about one month beginning June 24. This includes the login nodes and the scratch file system. Please plan your work accordingly. While we

  12. Innovative Wave Power Device Starts Producing Clean Power in Hawaii |

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

    Department of Energy Wave Power Device Starts Producing Clean Power in Hawaii Innovative Wave Power Device Starts Producing Clean Power in Hawaii July 6, 2015 - 6:31pm Addthis With support from the Energy Department and the U.S. Navy, a prototype wave energy device has advanced successfully from initial concept to grid-connected, open-sea pilot testing. The device, called Azura, was recently launched and installed in a 30-meter test berth at the Navy's Wave Energy Test Site (WETS) in Kaneohe

  13. PEM Fuel Cell Freeze Durability and Cold Start Project

    SciTech Connect (OSTI)

    Patterson, T.; O'Neill, Jonathan

    2008-01-02

    UTC has taken advantage of the unique water management opportunities inherent in micro-porous bipolar-plates to improve the cold-start performance of its polymer electrolyte fuel cells (PEFC). Diagnostic experiments were used to determine the limiting factors in micro-porous plate PEFC freeze performance and the causes of any performance decay. Alternative cell materials were evaluated for their freeze performance. Freeze-thaw cycling was also performed to determine micro-porous plate PEFC survivability. Data from these experiments has formed the basis for continuing development of advanced materials capable of supporting DOE's cold-start and durability objectives.

  14. Cold-start characteristics of polymer electrolyte fuel cells

    SciTech Connect (OSTI)

    Mishler, Jeff; Mukundan, Rangachary; Wang, Yun; Mishler, Jeff; Mukherjee, Partha P

    2010-01-01

    In this paper, we investigate the electrochemical reaction kinetics, species transport, and solid water dynamics in a polymer electrolyte fuel cell (PEFC) during cold start. A simplitied analysis is developed to enable the evaluation of the impact of ice volume fraction on cell performance during coldstart. Supporting neutron imaging data are also provided to reveal the real-time water evolution. Temperature-dependent voltage changes due to the reaction kinetics and ohmic loss are also analyzed based on the ionic conductivity of the membrane at subfreezing temperature. The analysis is valuable for the fundamental study of PEFC cold-start.

  15. Fast Thorium Molten Salt Reactors Started with Plutonium

    SciTech Connect (OSTI)

    Merle-Lucotte, E.; Heuer, D.; Le Brun, C.; Brissot, R.; Liatard, E.; Meplan, O.; Nuttin, A.

    2006-07-01

    One of the pending questions concerning Molten Salt Reactors based on the {sup 232}Th/{sup 233}U fuel cycle is the supply of the fissile matter, and as a consequence the deployment possibilities of a fleet of Molten Salt Reactors, since {sup 233}U does not exist on earth and is not yet produced in the current operating reactors. A solution may consist in producing {sup 233}U in special devices containing Thorium, in Pressurized Water or Fast Neutrons Reactors. Two alternatives to produce {sup 233}U are examined here: directly in standard Molten Salt Reactors started with Plutonium as fissile matter and then operated in the Th/{sup 233}U cycle; or in dedicated Molten Salt Reactors started and fed with Plutonium as fissile matter and Thorium as fertile matter. The idea is to design a critical reactor able to burn the Plutonium and the minor actinides presently produced in PWRs, and consequently to convert this Plutonium into {sup 233}U. A particular reactor configuration is used, called 'unique channel' configuration in which there is no moderator in the core, leading to a quasi fast neutron spectrum, allowing Plutonium to be used as fissile matter. The conversion capacities of such Molten Salt Reactors are excellent. For Molten Salt Reactors only started with Plutonium, the assets of the Thorium fuel cycle turn out to be quickly recovered and the reactor's characteristics turn out to be equivalent to Molten Salt Reactors operated with {sup 233}U only. Using a combination of Molten Salt Reactors started or operated with Plutonium and of Molten Salt Reactors started with {sup 233}U, the deployment capabilities of these reactors fully satisfy the condition of sustainability. (authors)

  16. Starting low compression ratio rotary Wankel diesel engine

    SciTech Connect (OSTI)

    Kamo, R.; Yamada, T.Y.; Hamada, Y.

    1987-01-01

    The single stage rotary Wankel engine is difficult to convert into a diesel version having an adequate compression ratio and a compatible combustion chamber configuration. Past efforts in designing a rotary-type Wankel diesel engine resorted to a two-stage design. Complexity, size, weight, cost and performance penalties were some of the drawbacks of the two-stage Wankel-type diesel designs. This paper presents an approach to a single stage low compression ratio Wankel-type rotary engine. Cold starting of a low compression ratio single stage diesel Wankel becomes the key problem. It was demonstrated that the low compression single stage diesel Wankel type rotary engine can satisfactorily be cold started with a properly designed combustion chamber in the rotor and a variable heat input combustion aid.

  17. SNL Starting Points | National Nuclear Security Administration | (NNSA)

    National Nuclear Security Administration (NNSA)

    SNL Starting Points Sandia Field Office Home Page SNL Contract DOE Directives NNSA Policy System SNL's Economic Impact Brochure SNL's Fact Sheets SNL's Accomplishments SNL Partnerships Annual Report (Added June 30) SNL Strategic Plan SNL Strategic Plan FY16-FY20 State of the Labs Presentation State of the Labs Presentation 2015 SNL Corporate Overview and Organization SNL Corporate Overview FY16 SNL Corporate Overview FY 16 Presenter Notes SNL Organization Chart Agreements 2014 MTC Joint Review

  18. Sandia starts silicon wafer production for three nuclear weapon programs |

    National Nuclear Security Administration (NNSA)

    National Nuclear Security Administration | (NNSA) starts silicon wafer production for three nuclear weapon programs Wednesday, March 25, 2015 - 3:24pm Sandia National Laboratories has begun making silicon wafers for three nuclear weapon modernization programs, the largest production series in the history of its Microsystems and Engineering Sciences Applications (MESA) complex. MESA's silicon fab in October began producing base wafers for Application-Specific Integrated Circuits for the

  19. Graduate Fellows learn skills on starting careers as fellowships end |

    National Nuclear Security Administration (NNSA)

    National Nuclear Security Administration | (NNSA) Graduate Fellows learn skills on starting careers as fellowships end Tuesday, January 19, 2016 - 12:00am NNSA Blog NGFP Fellows at the annual NGFP Career Skills Workshop, where they met with PNNL and NNSA leaders to gain practical guidance and best practices for applying to positions after their fellowships. The NNSA Graduate Fellowship Program (NGFP) participated a Career Skills Workshop earlier this month in Washington. The annual event

  20. PPPL physicists simulate innovative method for starting up tokamaks without

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

    using a solenoid | Princeton Plasma Physics Lab physicists simulate innovative method for starting up tokamaks without using a solenoid By Raphael Rosen January 4, 2016 Tweet Widget Google Plus One Share on Facebook PPPL Scientist Francesca Poli (Photo by Elle Starkman/PPPL Office of Communications) PPPL Scientist Francesca Poli Scientists at the U.S. Department of Energy's Princeton Plasma Physics Laboratory (PPPL) have produced self-consistent computer simulations that capture the

  1. PPPL physicists simulate innovative method for starting up tokamaks without

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

    using a solenoid | Princeton Plasma Physics Lab physicists simulate innovative method for starting up tokamaks without using a solenoid By Raphael Rosen January 4, 2016 Tweet Widget Google Plus One Share on Facebook PPPL Scientist Francesca Poli (Photo by Elle Starkman/PPPL Office of Communications) PPPL Scientist Francesca Poli Scientists at the U.S. Department of Energy's Princeton Plasma Physics Laboratory (PPPL) have produced self-consistent computer simulations that capture the

  2. Getting Started on ALCF Resources - Videoconferences | Argonne Leadership

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

    Computing Facility on ALCF Resources - Videoconferences Getting Started on ALCF Resources - Videoconferences This essential introductory videoconference is intended for new ALCF users, but is open to any user interested in learning how to make the best use of our systems. Led by ALCF staff, this interactive course covers the basics you'll need to get your projects up and running. Learn ways to minimize wait time in job queues; receive tips for backing up your data; and gain experience

  3. Helping Cleantech Start-ups with Employee Compensation - News Releases |

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

    NREL Helping Cleantech Start-ups with Employee Compensation October 17, 2011 The Colorado Center for Renewable Energy Economic Development (CREED) at U.S. Department of Energy's National Renewable Energy Laboratory (NREL) invites cleantech entrepreneurs to attend the next event in its Entrepreneur Series. The Oct. 20 class, "How do you pay your CEO," will help cleantech entrepreneurs determine how to compensate a team, particularly when the company is short on cash. To help

  4. Western Pond Turtle Head-starting and Reintroduction; 2004-2005 Annual Report.

    SciTech Connect (OSTI)

    Van Leuven, Susan; Allen, Harriet; Slavin, Kate

    2005-09-01

    This report covers the results of the western pond turtle head-starting and reintroduction project for the period of October 2004-September 2005. Wild hatchling western pond turtles from the Columbia River Gorge were reared at the Woodland Park and Oregon Zoos in 2004 and 2005 as part of the recovery effort for this Washington State endangered species. The objective of the program is to reduce losses to introduced predators like bullfrogs and largemouth bass by raising the hatchlings to a size where they are too large to be eaten by most of these predators. Thirty-five turtles were placed at the Woodland Park Zoo and 53 at the Oregon Zoo. Of these, 77 head-started juvenile turtles were released at three sites in the Columbia Gorge in 2005. Four were held back to attain more growth in captivity. Eleven were released at the Klickitat ponds, 22 at the Klickitat lake, 39 at the Skamania site, and 5 at Pierce National Wildlife Refuge (NWR). This brought the total number of head-start turtles released since 1991 to 257 for the Klickitat ponds, 136 for the Klickitat lake, 206 for the Skamania pond complex, and 255 at Pierce NWR. In 2005, 34 females from the two Columbia Gorge populations were equipped with transmitters and monitored for nesting activity. Twenty-four nests were located and protected; these produced 90 hatchlings. The hatchlings were collected in September and transported to the Oregon and Woodland Park zoos for rearing in the head-start program. During the 2005 field season trapping effort, 486 western pond turtles were captured in the Columbia Gorge, including 430 previously head-started turtles. These recaptures, together with confirmed nesting by head-start females and visual resightings, indicate the program is succeeding in boosting juvenile recruitment to increase the populations. Records were also collected on 216 individual painted turtles captured in 2005 during trapping efforts at Pierce NWR, to gather baseline information on this native

  5. Western Pond Turtle Head-starting and Reintroduction; 2003-2004 Annual Report.

    SciTech Connect (OSTI)

    Van Leuven, Susan; Allen, Harriet; Slavin, Kate

    2004-09-01

    This report covers the results of the western pond turtle head-starting and reintroduction project for the period of October 2003-September 2004. Wild hatchling western pond turtles from the Columbia River Gorge were reared at the Woodland Park and Oregon Zoos in 2003 and 2004 as part of the recovery effort for this Washington State endangered species. The objective of the program is to reduce losses to introduced predators like bullfrogs and largemouth bass by raising the hatchlings to a size where they are too large to be eaten by most of these predators. Sixty-nine turtles were over-wintered at the Woodland Park Zoo and 69 at the Oregon Zoo. Of these, 136 head-started juvenile turtles were released at three sites in the Columbia Gorge in 2004. Two were held back to attain more growth in captivity. Thirty-four were released at the Klickitat ponds, 19 at the Klickitat lake, 21 at the Skamania site, and 62 at Pierce National Wildlife Refuge (NWR). This brought the total number of head-start turtles released since 1991 to 246 for the Klickitat ponds, 114 for the Klickitat lake, 167 for the Skamania pond complex, and 250 at Pierce NWR. In 2004, 32 females from the two Columbia Gorge populations were equipped with transmitters and monitored for nesting activity. Twenty-one of the females nested and produced 85 hatchlings. The hatchlings were collected in September and October and transported to the Woodland Park and Oregon zoos for rearing in the head-start program. Data collection for a four-year telemetry study of survival and habitat use by juvenile western pond turtles at Pierce NWR concluded in 2004. Radio transmitters on study animals were replaced as needed until all replacements were in service; afterward, the turtles were monitored until their transmitters failed. The corps of study turtles ranged from 39 in August 2003 to 2 turtles at the end of August 2004. These turtles showed the same seasonal pattern of movements between summer water and upland winter

  6. Transfer Activity Historical Yearly Peak

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

    Activity Historical Yearly Peak Transfer Activity Historical Yearly Peak The plots below show the yearly peak days from 2000 to the present. BE CAREFUL because the graphs are autoscaling - check the scales on each axis before you compare graphs. Note that the graph for the current year shows the data for the year-to-date peak. Transfers Started/In Progress Transfers Started/In Progress Transfers Started/In Progress Transfers Started/In Progress Transfers Started/In Progress Transfers Started/In

  7. Science on Saturday starts Jan. 11 | Princeton Plasma Physics Lab

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

    Science on Saturday starts Jan. 11 By Jeanne Jackson DeVoe January 10, 2014 Tweet Widget Google Plus One Share on Facebook Joshua E. G. Peek, a Hubble Fellow at Columbia University's Department of Astronomy and son of PPPL physicist and former director Robert Goldston, discussed "Outer Space!" at a Science on Saturday lecture in 2013. (Photo by Elle Starkman/PPPL Office of Communications) Joshua E. G. Peek, a Hubble Fellow at Columbia University's Department of Astronomy and son of

  8. Cell Shipments Total Inventory, Start-of-Year

    U.S. Energy Information Administration (EIA) Indexed Site

    Cell Shipments Total Inventory, Start-of-Year 628,668 Manufactured and Purchased During Reporting Year 652,696 Imported During Reporting Year 233,377 Total Available for Shipment 1,514,740 Cells Assembled into Modules and Sold for Resale 1,129,525 Export Shipments 106,472 Total Shipments 1,235,997 Inventory, End-of-Year 278,744 Table 5. Source and disposition of photovoltaic cell shipments, 2014 (peak kilowatts) Source Disposition Source: U.S. Energy Information Administration, Form EIA-63B,

  9. Phase I. Lanthanum-based Start Materials for Hydride Batteries

    SciTech Connect (OSTI)

    Gschneidner, K. A.; Schmidt, F. A.; Frerichs, A. E.; Ament, K. A.

    2013-08-20

    The purpose of Phase I of this work is to focus on developing a La-based start material for making nickel-metal (lanthanum)-hydride batteries based on our carbothermic-silicon process. The goal is to develop a protocol for the manufacture of (La1-xRx)(Ni1-yMy)(Siz), where R is a rare earth metal and M is a non-rare earth metal, to be utilized as the negative electrode in nickel-metal hydride (NiMH) rechargeable batteries.

  10. Cold start characteristics of ethanol as an automobile fuel

    DOE Patents [OSTI]

    Greiner, Leonard

    1982-01-01

    An alcohol fuel burner and decomposer in which one stream of fuel is preheated by passing it through an electrically heated conduit to vaporize the fuel, the fuel vapor is mixed with air, the air-fuel mixture is ignited and combusted, and the combustion gases are passed in heat exchange relationship with a conduit carrying a stream of fuel to decompose the fuel forming a fuel stream containing hydrogen gas for starting internal combustion engines, the mass flow of the combustion gas being increased as it flows in heat exchange relationship with the fuel carrying conduit, is disclosed.

  11. Jump start: DuPont exports its energy management program

    SciTech Connect (OSTI)

    1994-11-23

    In August 1993, DuPont launched its innovative Jump Start program, which called for managers in its 25 largest plants to carry out a 120-day crash effort to find ways to reduce energy use at their facilities. The effort produced ideas that will result in $21.5 million in energy savings over six years, exceeding DuPont`s target. It also kicked off a longer-term program the company hopes will cut as much as $300 million, or 15% from energy bills through 2000.

  12. The MicroBooNE Experiment - Getting Started

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

    Getting Started on MicroBooNE Welcome to MicroBooNE! This page is designed to help new MicroBooNE collaborators find their way around the experiment and Fermilab. Table of Contents Fermilab ID, Computing Accounts, and Required Training Visas for non-US Citizens Traveling to Fermilab Housing/Hotels Getting Around Communication within the Collaboration Software Getting Help Step One First, make sure the PI of your institution has sent an email to the MicroBooNE spokespeople letting them know that

  13. Module Shipments Total Inventory, Start-of-Year

    U.S. Energy Information Administration (EIA) Indexed Site

    Module Shipments Total Inventory, Start-of-Year 906,914 Manufactured During Reporting Year 726,915 Imported During Reporting Year 5,858,676 Purchased from U.S. OEM 33,951 Total Available for Shipment 7,526,456 U.S. Shipments and Sales for Resale 6,054,538 Export Shipments 182,985 Total Shipments 6,237,524 Inventory, End-of-Year 1,288,933 Table 6. Source and disposition of photovoltaic module shipments, 2014 (peak kilowatts) Source Disposition Source: U.S. Energy Information Administration, Form

  14. Western Pond Turtle Head-starting and Reintroduction, 2005-2006 Annual Report.

    SciTech Connect (OSTI)

    Van Leuven, Susan; Allen, Harriet; Slavens, Kate

    2006-11-01

    This report covers the results of the western pond turtle head-starting and reintroduction project for the period of October 2005-September 2006. Wild hatchling western pond turtles from the Columbia River Gorge were reared at the Woodland Park and Oregon zoos in 2005 and 2006 as part of the recovery effort for this Washington State endangered species. The objective of the program is to reduce losses to introduced predators like bullfrogs and largemouth bass by raising the hatchlings to a size where they are too large to be eaten by most of these predators. Twenty-six turtles were placed at the Woodland Park Zoo and 62 at the Oregon Zoo in fall 2005. These turtles joined two that were held back from release in summer 2005 due to their small size. All 90 juvenile turtles were released at three sites in the Columbia Gorge in 2006. Twenty-eight juvenile turtles were released at the Klickitat ponds, 22 at the Klickitat lake, 21 at the Skamania site, and 19 at Pierce National Wildlife Refuge (NWR). This brought the total number of head-start turtles released since 1991 to 944; 285 for the Klickitat ponds, 158 for the Klickitat lake, 227 for the Skamania pond complex, and 274 at Pierce NWR. In 2006, 20 females from the Klickitat population were equipped with transmitters and monitored for nesting activity. Fifteen nests were located and protected; these produced 55 hatchlings. The hatchlings were collected in September and transported to the Oregon and Woodland Park zoos for rearing in the head-start program. One wild hatchling captured in spring 2006 was placed in the head-start program to attain more growth in captivity. During the 2006 field season trapping effort, 414 western pond turtles were captured in the Columbia Gorge, including 374 previously head-started turtles. These recaptures, together with confirmed nesting by head-start females and visual resightings, indicate the program is succeeding in boosting juvenile recruitment to increase the populations

  15. Sandia Energy - Power Production Started on All Three SWiFT Turbines

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

    Power Production Started on All Three SWiFT Turbines Home Renewable Energy Energy SWIFT Facilities Partnership News Wind Energy News & Events Power Production Started on All Three...

  16. Colorado Start-Up Awarded First 'America's Next Top Energy Innovator...

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

    Colorado Start-Up Awarded First 'America's Next Top Energy Innovator' Agreement Colorado Start-Up Awarded First 'America's Next Top Energy Innovator' Agreement May 20, 2011 - ...

  17. DART's (Dallas Area Rapid Transit) LNG Bus Fleet Start-Up Experience (Alternative Fuel Transit Buses Brochure)

    SciTech Connect (OSTI)

    Battelle

    2000-06-30

    This report, based on interviews and site visits conducted in October 1999, describes the start-up activities of the DART liquefied natural gas program, identifying problem areas, highlighting successes, and capturing the lessons learned in DART's ongoing efforts to remain at the forefront of the transit industry.

  18. Dual-Fuel Truck Fleet: Start-Up Experience

    SciTech Connect (OSTI)

    NREL

    1998-09-30

    Although dual-fuel engine technology has been in development and limited use for several years, it has only recently moved toward full-scale operational capability for heavy-duty truck applications. Unlike a bifuel engine, which has two separate fuel systems that are used one at a time, a dual-fuel engine uses two fuel systems simultaneously. One of California's South Coast Air Quality Management District (SCAQMD) current programs is a demonstration of dual-fuel engine technology in heavy-duty trucks. These trucks are being studied as part of the National Renewable Energy Laboratory's (NREL's) Alternative Fuel Truck Program. This report describes the start-up experience from the program.

  19. Method of forming and starting a sodium sulfur battery

    DOE Patents [OSTI]

    Paquette, David G.

    1981-01-01

    A method of forming a sodium sulfur battery and of starting the reactive capability of that battery when heated to a temperature suitable for battery operation is disclosed. An anodic reaction zone is constructed in a manner that sodium is hermetically sealed therein, part of the hermetic seal including fusible material which closes up openings through the container of the anodic reaction zone. The hermetically sealed anodic reaction zone is assembled under normal atmospheric conditions with a suitable cathodic reaction zone and a cation-permeable barrier. When the entire battery is heated to an operational temperature, the fusible material of the hermetically sealed anodic reaction zone is fused, thereby allowing molten sodium to flow from the anodic reaction zone into reactive engagement with the cation-permeable barrier.

  20. Method for starting operation of a resistance melter

    DOE Patents [OSTI]

    Chapman, Christopher Charles

    1977-01-01

    A method for starting the operation of a resistance furnace, where heating occurs by passing a current through the charge between two furnace electrodes and the charge is a material which is essentially electrically nonconductive when in a solid physical state but which becomes more electrically conductive when in a molten physical state, by connecting electrical resistance heating wire between the furnace electrodes, placing the wire in contact with the charge material between the electrodes and passing a current through the wire to heat the wire to a temperature sufficient to melt the material between the furnace electrodes so that as the material melts, current begins to pass between the electrodes through the melted material, further heating and melting more material until all current between the electrodes passes through the charge material without the aid or presence of the resistance element.

  1. START Program for Renewable Energy Project Development Assistance – Round Three Application

    Broader source: Energy.gov [DOE]

    Download the application for the START Program for Renewable Energy Project Development Assistance–Round Three.

  2. Verification of Readiness to Start Up or Restart Nuclear Facilities

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

    2010-04-16

    The order establishes requirements for verifying readiness for startup of new Hazard Category 1, 2, and 3 nuclear facilities, activities, and operations, and for restart of existing Hazard Category 1, 2, and 3 nuclear facilities, activities, and operations that have been shut down. Adm Chg 1, dated 4-2-13, supersedes DOE O 425.1D.

  3. Verification of Readiness to Start Up or Restart Nuclear Facilities

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

    2010-04-16

    The order establishes requirements for verifying readiness for startup of new Hazard Category 1, 2, and 3 nuclear facilities, activities, and operations, and for restart of existing Hazard Category 1, 2, and 3 nuclear facilities, activities, and operations that have been shut down. Cancels DOE O 425.1C. Adm Chg 1, dated 4-2-13.

  4. Western Pond Turtle Head-starting and Reintroduction; 2002-2003 Progress Report.

    SciTech Connect (OSTI)

    Van Leuven, Susan; Allen, Harriet; Slavin, Kate

    2004-02-01

    release and August 2003, together with juveniles from the 2001 release which were monitored from June 2001 through August 2003, and juveniles from the 2000 release which were monitored from August 2000 through August 2003. The number of functioning transmitters varied due to transmitter failures and detachments, and availability of replacement transmitters, as well as opportunities to recapture turtles. By August 15, 2003, a total of 39 turtles were being monitored: 6 from the 2000 release, 8 from the 2001 release, 10 from the 2002 release, and 15 from the 2003 release. During the 2002 field season trapping effort, 280 turtles were captured in the Columbia Gorge, including 236 previously head-started turtles. During the 2003 trapping season, 349 turtles were captured in the Columbia Gorge; 304 of these had been head-started. These recaptures, together with confirmed nesting by head-start females and visual re-sightings, indicate the program is succeeding in boosting juvenile recruitment to increase the populations. Records were also collected on 160 individual painted turtles captured in 2002 and 189 painted turtles captured in 2003 during trapping efforts at Pierce NWR, to gather baseline information on this native population. Eight female painted turtles were monitored by telemetry during the 2002 nesting season; 4 nests were recorded for these animals, plus 35 nests located incidentally. Preferred habitat for nesting was identified based on the telemetry results, to be considered in anticipating future turtle habitat needs and in management planning at Pierce NWR. Bonneville Power Administration (BPA) funding supported activities in the Columbia River Gorge from June 2002 through September 2003.

  5. Reducing cold-start emissions by catalytic converter thermal management

    SciTech Connect (OSTI)

    Burch, S D; Potter, T F; Keyser, M A; Brady, M J; Michaels, K F

    1995-01-01

    Vacuum insulation and phase-change thermal storage have been used to enhance the heat retention of a prototype catalytic converter. Storing heat in the converter between trips allows exhaust gases to be converted more quickly, significantly reducing cold-start emissions. Using a small metal hydride, the thermal conductance of the vacuum insulation can be varied continuously between 0.49 and 27 W/m{sup 2}K (R-12 to R-0.2 insulation) to prevent overheating of the catalyst. A prototype was installed in a Dodge Neon with a 2.0-liter engine. Following a standard preconditioning and a 23-hour cold soak, an FTP (Federal Test Procedure) emissions test was performed. Although exhaust temperatures during the preconditioning were not hot enough to melt the phase-change material, the vacuum insulation performed well, resulting in a converter temperature of 146{degrees}C after the 23-hour cold soak at 27{degrees}C. Compared to the same converter at ambient conditions, overall emissions of CO and HC were reduced by 52 % and 29 %, to 0.27 and 0.037 g/mile, respectively. The maximum converter temperature during the FTP cycle was 720{degrees}C. This limited testing was performed with a nearly-fresh palladium-only catalyst, but demonstrates the potential of this vacuum insulation approach for emissions reduction and thermal control. Further testing is ongoing. An initial assessment of several production issues is made, including high-volume fabrication challenges, durability, and cost.

  6. Property:OpenEI/UtilityRate/StartDate | Open Energy Information

    Open Energy Info (EERE)

    StartDate Jump to: navigation, search This is a property of type Date. Name: Start Date Retrieved from "http:en.openei.orgwindex.php?titleProperty:OpenEIUtilityRate...

  7. On eigenfunction expansion solutions for the start-up of fluid...

    Office of Scientific and Technical Information (OSTI)

    On eigenfunction expansion solutions for the start-up of fluid flow Citation Details In-Document Search Title: On eigenfunction expansion solutions for the start-up of fluid flow ...

  8. Contact and Stress Anisotropies in Start-Up Flow of Colloidal...

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

    Contact and Stress Anisotropies in Start-Up Flow of Colloidal Suspensions Authors: Martys, N.S., Lootens, D., George, W., and H Spatiotemporal correlations in start-up flows of...

  9. Active Load Control Techniques for Wind Turbines

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

    ... 90264 David Laino Windward Engineering 8219 Glen Arbor Dr. ... & M University PO Box 248 Canyon, TX 79016 Cecelia M. ... 01944 C.P. van Dam (10) Dept. of Mechanical & Aerospace Eng. ...

  10. Alternative Fuels Data Center: Ten Ways You Can Start to Cut Petroleum Use

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Right Now Ten Ways You Can Start to Cut Petroleum Use Right Now to someone by E-mail Share Alternative Fuels Data Center: Ten Ways You Can Start to Cut Petroleum Use Right Now on Facebook Tweet about Alternative Fuels Data Center: Ten Ways You Can Start to Cut Petroleum Use Right Now on Twitter Bookmark Alternative Fuels Data Center: Ten Ways You Can Start to Cut Petroleum Use Right Now on Google Bookmark Alternative Fuels Data Center: Ten Ways You Can Start to Cut Petroleum Use Right Now on

  11. Development of a Rapid-Start On-Board Automotive Steam Reformer

    SciTech Connect (OSTI)

    Whyatt, Greg A.; Fischer, Christopher M.; Davis, James M.

    2004-04-29

    The paper reports on the status of efforts to engineer a microchannel steam reforming system to enable a rapid cold start capability. The steam reformer is intended to be coupled with a WGS and PROX reactor to provide reformate to a PEM fuel cell for an automotive propulsion application. A compact and efficient microchannel steam reformer was previously developed that required ~15 minutes to accomplish a cold start. The objective of the current work was to reduce this start time to <30 seconds without sacrificing steady-state efficiency. The paper describes the changes made in the reforming system to enable cold start capability and presents data on reformate flow and temperature transients during cold start testing. The results demonstrate that the system is capable of producing reformate within 22 seconds after a cold start. A strategy for integrating the system with a WGS and PROX reactor to provide a rapid start fuel processing system is described.

  12. AVTA: 2010 Smart Fortwo Start-Stop Testing Results

    Broader source: Energy.gov [DOE]

    The Vehicle Technologies Office's Advanced Vehicle Testing Activity carries out testing on a wide range of advanced vehicles and technologies on dynamometers, closed test tracks, and on-the-road. These results provide benchmark data that researchers can use to develop technology models and guide future research and development. Baseline data, which provides a point of comparison for the other test results, was collected at two different research laboratories. Baseline and other data collected at Idaho National Laboratory is in the attached documents. Baseline and battery testing data collected at Argonne National Laboratory is available in summary and CSV form on the Argonne Downloadable Dynometer Database site (http://www.anl.gov/energy-systems/group/downloadable-dynamometer-databas...). Taken together, these reports give an overall view of how this vehicle functions under extensive testing.

  13. Well Log Techniques At Newberry Caldera Area (DOE GTP) | Open...

    Open Energy Info (EERE)

    navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Well Log Techniques At Newberry Caldera Area (DOE GTP) Exploration Activity Details Location Newberry...

  14. Well Log Techniques At Coso Geothermal Area (1985) | Open Energy...

    Open Energy Info (EERE)

    navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Well Log Techniques At Coso Geothermal Area (1985) Exploration Activity Details Location Coso Geothermal...

  15. The Challenge for Arms Control Verification in the Post-New START World

    SciTech Connect (OSTI)

    Wuest, C R

    2012-05-24

    prospects for maintaining U.S. security and minimizing the chances of nuclear war, while deliberately reducing stockpiles to a few hundred weapons, is possible but not without risk. While the question of the appropriate level of cuts to U.S. nuclear forces is being actively debated, a key issue continues to be whether verification procedures are strong enough to ensure that both the U.S. and Russia are fulfilling their obligations under the current New Start treaty and any future arms reduction treaties. A recent opinion piece by Henry Kissinger and Brent Scowcroft (2012) raised a number of issues with respect to governing a policy to enhance strategic stability, including: in deciding on force levels and lower numbers, verification is crucial. Particularly important is a determination of what level of uncertainty threatens the calculation of stability. At present, that level is well within the capabilities of the existing verification systems. We must be certain that projected levels maintain - and when possible, reinforce - that confidence. The strengths and weaknesses of the New START verification regime should inform and give rise to stronger regimes for future arms control agreements. These future arms control agreements will likely need to include other nuclear weapons states and so any verification regime will need to be acceptable to all parties. Currently, China is considered the most challenging party to include in any future arms control agreement and China's willingness to enter into verification regimes such as those implemented in New START may only be possible when it feels it has reached nuclear parity with the U.S. and Russia. Similarly, in keeping with its goals of reaching peer status with the U.S. and Russia, Frieman (2004) suggests that China would be more willing to accept internationally accepted and applied verification regimes rather than bilateral ones. The current verification protocols specified in the New START treaty are considered as the

  16. Starting a local conservation and passive solar retrofit program: an energy planning sourcebook

    SciTech Connect (OSTI)

    Barber, V; Mathews, R

    1982-02-01

    A city planner or a neighborhood activist may wish to initiate a local conservation and passive solar retrofit program but may not have previous experience in doing so. This sourcebook is designed to assist interested individuals with their energy planning efforts, from determining retrofit potential, to financing and implementing the program. An approach or methodology is provided which can be applied to determine retrofit potential in single-family residences, mobile homes, multifamily residences, and nonresidential buildings. Case studies in Albuquerque, New Mexico, are given as examples. Guidelines are provided for evaluating the economic benefits of a retrofit program through benefit-cost analysis and economic base studies at the city and neighborhood levels. Also included are approaches to community outreach, detailing how to get started, how to gain local support, and examples of successful programs throughout the US. The need for financing, the development of a local strategy, public and private financing techniques, and community energy service organizations are examined. In addition to the Albuquerque case studies, a brief technology characterization, heat-loss calculations, economic tools, and a list of resources are appended.

  17. Integrated starting and running amalgam assembly for an electrodeless fluorescent lamp

    DOE Patents [OSTI]

    Borowiec, Joseph Christopher; Cocoma, John Paul; Roberts, Victor David

    1998-01-01

    An integrated starting and running amalgam assembly for an electrodeless SEF fluorescent lamp includes a wire mesh amalgam support constructed to jointly optimize positions of a starting amalgam and a running amalgam in the lamp, thereby optimizing mercury vapor pressure in the lamp during both starting and steady-state operation in order to rapidly achieve and maintain high light output. The wire mesh amalgam support is constructed to support the starting amalgam toward one end thereof and the running amalgam toward the other end thereof, and the wire mesh is rolled for friction-fitting within the exhaust tube of the lamp. The positions of the starting and running amalgams on the wire mesh are jointly optimized such that high light output is achieved quickly and maintained, while avoiding any significant reduction in light output between starting and running operation.

  18. NNSA Authorizes Start of Design for New Uranium Storage Facility | National

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

    Nuclear Security Administration | (NNSA) Authorizes Start of Design for New Uranium Storage Facility September 06, 2002 PDF icon 9-5-

  19. ARPA-E Announces Start-up Companies, Strategic Partnerships and...

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

    ARPA-E Announces Start-up Companies, Strategic Partnerships and Private Sector Funding at ... strategic partnerships, and secure private sector funding to help move ARPA-E ...

  20. DOE Announces Start of Recovery Act Funded Cleanup Projects at Y-12

    Broader source: Energy.gov [DOE]

    DOE announces that cleanup of the Old Salvage Yard at the Y-12 National Security Complex has started using funding received from the Recovery Act.

  1. The Art of the Start: Moving Science from the Lab to the Marketplace

    ScienceCinema (OSTI)

    Larry Bock

    2010-01-08

    April 25, 2009 Berkeley Lab Nano*High lecture: The Art of the Start: Moving Science from the Lab to the Marketplace

  2. Text-Alternative Version: L Prize-PAR 38 Competition: A New Start

    Office of Energy Efficiency and Renewable Energy (EERE)

    Below is the text-alternative version of the "L Prize-PAR 38 Competition: A New Start" webcast, held March 27, 2012.

  3. Applied Science/Techniques

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

    Applied ScienceTechniques Print The ALS is an excellent incubator of new scientific techniques and instrumentation. Many of the technical advances that make the ALS a world-class...

  4. Getting Started

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

    with the Laboratory will be required to register in the System for Award Management (SAM). The System for Award Management (SAM) is the primary supplier database for the...

  5. Getting Started

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

    Read More Accessing HPSS You can access NERSC's HPSS systems from any machine that supports HSI, HTAR or ftppftp. You can also access the user system,...

  6. Getting Started

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

    Staff Blogs Request Repository Mailing List Need Help? Out-of-hours Status and Password ... is available 24x7, seven days a week to give you status updates and reset your password. ...

  7. Getting started

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

    successfully log in you will land in your HOME directory. Euclid is a one node system. ... Running the Job Euclid does not have a batch system. All jobs are truly interactive and ...

  8. Getting started

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

    into the login nodes or gpint systems, you should take a look at the list of installed software on genepool, and then familiarize yourself with the modules system and the user ...

  9. Applied Science/Techniques

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

    New Spectroscopic Technique Reveals the Dynamics of Operating Battery Electrodes ... The ALS X-Ray Streak Camera: Bringing the Ultrafast and Ultrasmall into Focus Laser ...

  10. Ground Electromagnetic Techniques | Open Energy Information

    Open Energy Info (EERE)

    Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Electromagnetic Techniques Information...

  11. Colorado Start-Up Awarded First 'America's Next Top Energy Innovator'

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

    Agreement | Department of Energy Colorado Start-Up Awarded First 'America's Next Top Energy Innovator' Agreement Colorado Start-Up Awarded First 'America's Next Top Energy Innovator' Agreement May 20, 2011 - 5:42pm Addthis Ginny Simmons Ginny Simmons Former Managing Editor for Energy.gov, Office of Public Affairs While visiting the National Renewable Energy Laboratory in Golden, Colorado, today, Vice President Biden announced that the Colorado-based start-up company U.S. e-Chromic LLC has

  12. Small Business Vouchers Pave Way for U.S. Start-Ups | Department of Energy

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

    Small Business Vouchers Pave Way for U.S. Start-Ups Small Business Vouchers Pave Way for U.S. Start-Ups June 8, 2016 - 3:53pm Addthis American small businesses now have a fighting chance to make a big impact in clean energy. Through EERE's Small Business Vouchers (SBV) pilot, 33 small businesses are gaining access to world-class resources at nine national laboratories to help move their innovative ideas and technologies closer to the marketplace. Skysun LLC, a start-up from Bay Village, Ohio, is

  13. Educated and Equipped: Jump-Start Your Career in the Bioenergy Industry |

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

    Department of Energy Jump-Start Your Career in the Bioenergy Industry Educated and Equipped: Jump-Start Your Career in the Bioenergy Industry July 16, 2014 - 10:13am Addthis Many fields of study can lead to a career in the bioenergy industry. Many fields of study can lead to a career in the bioenergy industry. Alicia Moulton Communications Specialist, Bioenergy Technologies Office Are you a recent college graduate looking to jump-start your career? Whether you majored in engineering or

  14. VIDEO: Getting Started on the Road to Clean Energy | Department of Energy

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

    VIDEO: Getting Started on the Road to Clean Energy VIDEO: Getting Started on the Road to Clean Energy May 5, 2016 - 10:45am Addthis Pat Adams Pat Adams Digital Content Specialist, Office of Public Affairs Simon Edelman Simon Edelman Chief Creative Officer For America's next generation of clean energy innovators, getting started can be the hardest part. That's why the Department of Energy is testing a new model for clean energy research and development (R&D) through a program called Cyclotron

  15. Subfreezing Start/Stop Protocol for and Advanced Metallic Open-Flowfield

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

    Fuel Cell Stack | Department of Energy Subfreezing Start/Stop Protocol for and Advanced Metallic Open-Flowfield Fuel Cell Stack Subfreezing Start/Stop Protocol for and Advanced Metallic Open-Flowfield Fuel Cell Stack Part of a $100 million fuel cell award announced by DOE Secretary Bodman on Oct. 25, 2006. 2_nuvera.pdf (21.96 KB) More Documents & Publications Subfreezing Start/Stop Protocol for an Advanced Metallic Open-Flowfield Fuel Cell Stack Fuel Cell Kickoff Meeting Agenda Advance

  16. Interactive Activity Detection Tools

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

    Activity Detection Tools Interactive Activity Detection Tools Tools for detecting specified activities in video data provide a key intelligence capability. High numbers of false alarms, however, reduce tool effectiveness and analyst patience. User feedback reduces false alarms * This project will reduce the number of false alarms generated by activity detection tools (including single vehicle start / stop, multi-vehicle meetings and coordinated driving patterns) by exploiting user feedback in a

  17. Contamination Control Techniques

    SciTech Connect (OSTI)

    EBY, J.L.

    2000-05-16

    Welcome to a workshop on contamination Control techniques. This work shop is designed for about two hours. Attendee participation is encouraged during the workshop. We will address different topics within contamination control techniques; present processes, products and equipment used here at Hanford and then open the floor to you, the attendees for your input on the topics.

  18. Electromagnetic Sounding Techniques | Open Energy Information

    Open Energy Info (EERE)

    Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Ground Electromagnetic Techniques Information Provided by Technique Lithology: Rock...

  19. Electromagnetic Profiling Techniques | Open Energy Information

    Open Energy Info (EERE)

    Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Ground Electromagnetic Techniques Information Provided by Technique Lithology: Rock...

  20. Applications for START Clean Energy Project Development Technical Assistance Due May 22

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy (DOE) Office of Indian Energy is accepting applications for the third round of Strategic Technical Assistance Response Team (START) Renewable Energy Project...

  1. Fact #853 December 29, 2014 Stop/Start Technology is in nearly...

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

    Note: 2014 estimates are preliminary. Fact 853 Dataset Supporting Information Penetration of Non-Hybrid StopStart in New Light Vehicles Model Year Cars Light Trucks All Cars and ...

  2. U.S. Geothermal Starts New Drilling Programs at Neal Hot Springs...

    Open Energy Info (EERE)

    Project Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: U.S. Geothermal Starts New Drilling Programs at Neal Hot Springs Project Abstract NA Author...

  3. Vehicle Technologies Office Merit Review 2015: A 12V Start-Stop Li Polymer Battery Pack

    Office of Energy Efficiency and Renewable Energy (EERE)

    Presentation given by LG Chem Power at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about A 12V start-stop Li polymer...

  4. Method and apparatus for rapid stopping and starting of a thermoacoust...

    Office of Scientific and Technical Information (OSTI)

    Title: Method and apparatus for rapid stopping and starting of a thermoacoustic engine A thermoacoustic engine-driven system with a hot heat exchanger, a regenerator or stack, and ...

  5. New shared lab spells opportunity for small biotech start-ups

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

    New shared lab spells opportunity for small biotech start-ups Community Connections: Your ... Latest Issue:July 2016 all issues All Issues submit New shared lab spells opportunity ...

  6. Secretary of Energy's Statement on the NuStart Consortium's Site Selection

    Broader source: Energy.gov [DOE]

    WASHINGTON, DC – Secretary of Energy Samuel Bodman released the following statement regarding today’s announcement by the NuStart Consortium on the selection of two sites for Advanced Nuclear Plant...

  7. New Hampshire Electric Co-Op- SmartSTART Energy Efficiency Loan Program

    Broader source: Energy.gov [DOE]

    New Hampshire Electric Co-Op's SmartSTART (Savings Through Affordable Retrofit Technologies) Program is a no-money-down option to have energy efficient products installed in a business or...

  8. START Program for Renewable Energy Project Development Assistance Non-Disclosure Agreement

    Broader source: Energy.gov [DOE]

    Download the Non-Disclosure Agreement to submit along with your application for the DOE Office of Indian Energy Strategic Technical Assistance Response Team (START) Program for Renewable Energy...

  9. Cold-Start Emissions Control in Hybrid Vehicles Equipped with a Passive

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

    Adsorber for Hydrocarbons and NOx | Department of Energy Emissions Control in Hybrid Vehicles Equipped with a Passive Adsorber for Hydrocarbons and NOx Cold-Start Emissions Control in Hybrid Vehicles Equipped with a Passive Adsorber for Hydrocarbons and NOx Reports results from study of potential for using chemisorbing materials to temporally trap HC and NOx emissions during cold-start of HEVs and PHEVs over transient driving cycles p-13_gao.pdf (1.35 MB) More Documents & Publications

  10. Top Student Team Wins $180,000 Toward Clean Energy Start Up | Department of

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

    Energy Student Team Wins $180,000 Toward Clean Energy Start Up Top Student Team Wins $180,000 Toward Clean Energy Start Up June 15, 2012 - 2:57pm Addthis Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs The winners were: Grand prize: NuMat Technologies from Northwestern University Second place: SolidEnergy Systems from Massachusetts Institute of Technology People's Choice: Navillum Nanotechnologies from University of Utah NuMat Technologies beat

  11. A Fast Start-up On-Board Fuel Reformer for NOx Adsorber Regeneration and

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

    Desulfation | Department of Energy A Fast Start-up On-Board Fuel Reformer for NOx Adsorber Regeneration and Desulfation A Fast Start-up On-Board Fuel Reformer for NOx Adsorber Regeneration and Desulfation 2004 Diesel Engine Emissions Reduction (DEER) Conference: ArvinMeritor 2004_deer_crane.pdf (430.54 KB) More Documents & Publications Plasmatron Fuel Reformer Development and Internal Combustion Engine Vehicle Applications Use of a Diesel Fuel Processor for Rapid and Efficient

  12. Natural gas inventories heading to record levels at start of winter heating season

    U.S. Energy Information Administration (EIA) Indexed Site

    Natural gas inventories heading to record levels at start of winter heating season U.S. natural gas inventories are expected to be at record levels to start the winter heating season. In its new forecast, the U.S. Energy Information Administration said the amount of natural gas stored underground should total almost 4 trillion cubic feet by the beginning of November, reflecting record high natural gas production. Inventories could go even higher if heating demand is not strong during October

  13. The L Prize PAR 38 Competition: A New Start | Department of Energy

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

    The L Prize PAR 38 Competition: A New Start The L Prize PAR 38 Competition: A New Start This March 27, 2012 webcast presented information on the newly reopened L Prize® PAR 38 competition. Moderated by James Brodrick, DOE Lighting Program Manager, the webcast featured an overview of the PAR 38 competition from Marc Ledbetter of Pacific Northwest National Laboratory, and explained key changes of the retooled competition requirements. Topics included performance specifications, U.S. content

  14. Method and apparatus for rapid stopping and starting of a thermoacoustic engine

    DOE Patents [OSTI]

    Swift, Gregory W.; Backhaus, Scott N.; Gardner, David L.

    2003-11-11

    A thermoacoustic engine-driven system with a hot heat exchanger, a regenerator or stack, and an ambient heat exchanger includes a side branch load for rapid stopping and starting, the side branch load being attached to a location in the thermoacoustic system having a nonzero oscillating pressure and comprising a valve, a flow resistor, and a tank connected in series. The system is rapidly stopped simply by opening the valve and rapidly started by closing the valve.

  15. Contact and Stress Anisotropies in Start-Up Flow of Colloidal Suspensions |

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

    Argonne Leadership Computing Facility Contact and Stress Anisotropies in Start-Up Flow of Colloidal Suspensions Authors: Martys, N.S., Lootens, D., George, W., and H Spatiotemporal correlations in start-up flows of attractive colloids are explored by numerical simulations as a function of their volume fraction and shear rate. The suspension is first allowed to flocculate during a time tw, then the stress necessary to induce its flow is computed. We find that, at low volume fractions, the

  16. Start-up fuel and power flattening of sodium-cooled candle core

    SciTech Connect (OSTI)

    Takaki, Naoyuki; Sagawa, Yu; Umino, Akitake; Sekimoto, Hiroshi

    2013-07-01

    The hard neutron spectrum and unique power shape of CANDLE enable its distinctive performances such as achieving high burnup more than 30% and exempting necessity of both enrichment and reprocessing. On the other hand, they also cause several challenging problems. One is how the initial fuel can be prepared to start up the first CANDLE reactor because the equilibrium fuel composition that enables stable CANDLE burning is complex both in axial and radial directions. Another prominent problem is high radial power peaking factor that worsens averaged burnup, namely resource utilization factor in once-through mode and shorten the life time of structure materials. The purposes of this study are to solve these two problems. Several ideas for core configurations and startup fuel using single enrichment uranium and iron as a substitute of fission products are studied. As a result, it is found that low enriched uranium is applicable to ignite the core but all concepts examined here exceeded heat limits. Adjustment in enrichment and height of active and burnt zone is opened for future work. Sodium duct assemblies and thorium fuel assemblies loaded in the center region are studied as measures to reduce radial power peaking factor. Replacing 37 fuels by thorium fuel assemblies in the zeroth to third row provides well-balanced performance with flattened radial power distribution. The CANDLE core loaded with natural uranium in the outer and thorium in the center region achieved 35.6% of averaged burnup and 7.0 years of cladding life time owing to mitigated local fast neutron irradiation at the center. Using thorium with natural or depleted uranium in CANDLE reactor is also beneficial to diversifying fission resource and extending available term of fission energy without expansion of needs for enrichment and reprocessing.

  17. Magnetotelluric Techniques At Mt Princeton Hot Springs Geothermal...

    Open Energy Info (EERE)

    Techniques At Mt Princeton Hot Springs Geothermal Area (Held & Henderson, 2012) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Magnetotelluric...

  18. CNEEC - Synchrotron Techniques Tutorial by Profs. Pianetta and Toney

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

    Synchrotron Techniques

  19. Pyrolysis of scrap tires and conversion of chars to activated carbon

    SciTech Connect (OSTI)

    Merchant, A.A.; Petrich, M.A. . Dept. of Chemical Engineering)

    1993-08-01

    The primary objective of this work was to demonstrate the conversion of scrap tires to activated carbon. The authors have been successful in this endeavor, producing carbons with surface areas greater than 500 m[sup 2]/g and significant micropore volumes. Tire shreddings were pyrolyzed in batch reactors, and the pyrolysis chars activated by reaction with superheated steam. Solid products of pyrolysis and activation were studied with nitrogen adsorption techniques. They find that the porosity development during steam activation of tire pyrolysis char is similar to that reported for various other chars. A maximum in micropore volume is observed as a function of conversion, but the total surface area increases monotonically with conversion. They suggest that the activation process consists of micropore formation, followed by pore enlargement. The process conditions used in this study are a good starting point from which to optimize a process to convert tires to activated carbon.

  20. Characterization of Cu–Ni nanostructured alloys obtained by a chemical route. Influence of the complexing agent content in the starting solution

    SciTech Connect (OSTI)

    Carreras, Alejo C.

    2015-03-15

    The influence of the amount of complexing agent added to the starting solution on the physicochemical properties of Cu–Ni nanostructured alloys obtained through a chemical route, was studied. For this purpose, three Cu–Ni nanoalloy samples were synthesized by a previously developed procedure, starting from solutions with citric acid to metal molar ratios (C/Me) of 0.73, 1.00 and 1.50. The synthesis technique consisted in preparing a precursor via the citrate-gel method, and carrying out subsequent thermal treatments in controlled atmospheres. Sample characterization was performed by scanning electron microscopy, X-ray microanalysis, X-ray diffraction, transmission electron microscopy, X-ray nanoanalysis and electron diffraction. In the three cases, copper and nickel formed a solid solution with a Cu/Ni atomic ratio close to 50/50, and free of impurities inside the crystal structure. The citric acid content of the starting solution proved to have an important influence on the morphology, size distribution, porosity, and crystallinity of the Cu–Ni alloy microparticles obtained, but a lesser influence on their chemical composition. The molar ratio C/Me = 1.00 resulted in the alloy with the Cu/Ni atomic ratio closest to 50/50. - Highlights: • We synthesize Cu–Ni nanoalloys by a chemical route based on the citrate-gel method. • We study the influence of the complexing agent content of the starting solution. • We characterize the samples by electron microscopy and X-ray techniques. • Citric acid influences the shape, size, porosity and crystallinity of the alloys.

  1. Cold-Start Performance and Emissions Behavior of Alcohol Fuels in an SIDI

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

    Engine Using Transient Hardware-In-Loop Test Meth | Department of Energy Performance and Emissions Behavior of Alcohol Fuels in an SIDI Engine Using Transient Hardware-In-Loop Test Meth Cold-Start Performance and Emissions Behavior of Alcohol Fuels in an SIDI Engine Using Transient Hardware-In-Loop Test Meth Discusses results of cold- and hot-start transient tests using gasoline and 3 alcohol-gasoline blends (50% and 85% ethanol, and 83% iso-butanol) deer11_ickes.pdf (603.35 KB) More

  2. The Race is On: Clean Energy and New Jobs in America, Starting in Michigan

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

    | Department of Energy The Race is On: Clean Energy and New Jobs in America, Starting in Michigan The Race is On: Clean Energy and New Jobs in America, Starting in Michigan May 14, 2012 - 5:48pm Addthis Deputy Secretary Poneman Travels to Michigan to Highlight How America Can Win the Clean Energy Race, and the Jobs that come with it Amanda Scott Amanda Scott Former Managing Editor, Energy.gov On Friday, Deputy Secretary of Energy Daniel B. Poneman traveled to Detroit, Michigan to speak to

  3. Iowa Start-up May Be "America's Next Top Energy Innovator" |

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

    Department of Energy May Be "America's Next Top Energy Innovator" Iowa Start-up May Be "America's Next Top Energy Innovator" August 4, 2011 - 1:09pm Addthis Company Licenses Technology from Ames Laboratory to Produce Titanium Powder for Use in Military, Biomedical and Aerospace Components Washington, DC -- U.S. Secretary of Energy Steven Chu today announced that an Iowa based start-up company has been selected to participate in the Department of Energy's "America's

  4. What Started the Motion Described By Newton's Third Law? | GE Global

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

    Research Started the Motion Described By Newton's Third Law? Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new window) Click to share (Opens in new window) Click to share on LinkedIn (Opens in new window) Click to share on Tumblr (Opens in new window) What Started the Motion Described By Newton's Third Law? 2012.02.24 Chief Scientist Jim Bray discusses the motion of atoms, the classical laws of physics and the forces associated with the big bang theory. 1

  5. Battery Test Manual For 12 Volt Start/Stop Hybrid Electric Vehicles

    SciTech Connect (OSTI)

    Belt, Jeffrey R.

    2015-05-01

    This manual was prepared by and for the United Stated Advanced Battery Consortium (USABC) Electrochemical Energy Storage Team. It is based on the targets established for 12 Volt Start/Stop energy storage development and is similar (with some important changes) to an earlier manual for the former FreedomCAR program. The specific procedures were developed primarily to characterize the performance of energy storage devices relative to the USABC requirements. However, it is anticipated that these procedures will have some utility for characterizing 12 Volt Start/Stop hybrid energy storage device behavior in general.

  6. Start 2015 with an #EnergyResolution to Save Money and Energy All Year Long

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

    | Department of Energy Start 2015 with an #EnergyResolution to Save Money and Energy All Year Long Start 2015 with an #EnergyResolution to Save Money and Energy All Year Long January 19, 2015 - 9:52am Addthis Create an #EnergyResolution to share how you plan to save money and energy in the New Year. | Graphic courtesy of Joelynn Schroeder, National Renewable Energy Laboratory Create an #EnergyResolution to share how you plan to save money and energy in the New Year. | Graphic courtesy of

  7. Order Module--DOE O 425.1D, VERIFICATION OF READINESS TO START UP OR

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

    RESTART NUCLEAR FACILITIES | Department of Energy 5.1D, VERIFICATION OF READINESS TO START UP OR RESTART NUCLEAR FACILITIES Order Module--DOE O 425.1D, VERIFICATION OF READINESS TO START UP OR RESTART NUCLEAR FACILITIES "The familiar level of this module is divided into three sections. In the first section we will discuss the purpose of DOE O 425.1D and the requirements for 1) determining the level of readiness review (RR), 2) determining the startup authorization authority (SAA), and

  8. America's Best Student Start-Up Companies Pitch for Your Vote | Department

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

    of Energy Best Student Start-Up Companies Pitch for Your Vote America's Best Student Start-Up Companies Pitch for Your Vote May 24, 2012 - 9:03am Addthis After pitching their business plan to panels of judges at the regional semifinal and final, six teams advanced to the national competition for a chance at the cash grand prize. | Energy Department file graphic. After pitching their business plan to panels of judges at the regional semifinal and final, six teams advanced to the national

  9. Department of Energy Small Business Conference Starts Today in Kansas City,

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

    Missouri | Department of Energy Small Business Conference Starts Today in Kansas City, Missouri Department of Energy Small Business Conference Starts Today in Kansas City, Missouri May 10, 2011 - 12:00am Addthis Washington, D.C. - The U.S. Department of Energy, the largest civilian contracting agency within the Federal government, is holding its 12th Annual Small Business Conference & Expo at the Kansas City Convention Center in Kansas City, Missouri from May 10-12, 2011. Drawing more

  10. The attribute measurement technique

    SciTech Connect (OSTI)

    Macarthur, Duncan W; Langner, Diana; Smith, Morag; Thron, Jonathan; Razinkov, Sergey; Livke, Alexander

    2010-01-01

    Any verification measurement performed on potentially classified nuclear material must satisfy two seemingly contradictory constraints. First and foremost, no classified information can be released. At the same time, the monitoring party must have confidence in the veracity of the measurement. An information barrier (IB) is included in the measurement system to protect the potentially classified information while allowing sufficient information transfer to occur for the monitoring party to gain confidence that the material being measured is consistent with the host's declarations, concerning that material. The attribute measurement technique incorporates an IB and addresses both concerns by measuring several attributes of the nuclear material and displaying unclassified results through green (indicating that the material does possess the specified attribute) and red (indicating that the material does not possess the specified attribute) lights. The attribute measurement technique has been implemented in the AVNG, an attribute measuring system described in other presentations at this conference. In this presentation, we will discuss four techniques used in the AVNG: (1) the 1B, (2) the attribute measurement technique, (3) the use of open and secure modes to increase confidence in the displayed results, and (4) the joint design as a method for addressing both host and monitor needs.

  11. Method and device for reducing overpenetration at the start of plasma arc welds

    DOE Patents [OSTI]

    Sanders, John M.; Lehmann, John M.; Ryan, Patrick M.

    1998-01-01

    A shim for improving plasma arc weld quality has ends tapered at about 25.degree. and notches at each end roughly centered over the corner between the tapered ends and main body of the shim. The improved shim allows lower starting plasma arc heat input and reduces the occurrence of sagging, or overpenetration, of the weld.

  12. Method and device for reducing overpenetration at the start of plasma arc welds

    SciTech Connect (OSTI)

    Sanders, J.M.; Lehmann, J.M.; Ryan, P.M.

    2000-03-14

    A shim for improving plasma arc weld quality has ends tapered at about 25{degree} and notches at each end roughly centered over the corner between the tapered ends and main body of the shim. The improved shim allows lower starting plasma arc heat input and reduces the occurrence of sagging, or overpenetration, of the weld.

  13. Cold starting capabilities of petroleum and syntehetic lubricants in heavy-duty diesel engines

    SciTech Connect (OSTI)

    Margeson, M.A.; Belmesch, B.J. )

    1989-01-01

    The objective of the work described in this paper was to compare the cold weather starting ability of diesel engines lubricated with SAE 15W-40 petroleum and SAE 5W-30 synthetic motor oil. Laboratory bench tests were used to compare rhelogical features such as borderline pumping temperature and cold cranking simulator profiles. A cold box provided a well controlled environment in which cranking and starting studies were carried out on the two oils in a turbocharged diesel engine. The SAE 5W-30 synthetic exhibited higher cranking speeds, lower starter amperage draw and immediate oil pressure readings when compared to the SAE l5W-40 petroleum. The SAE 5W-30 synthetic oil was safely started at {minus} l0 {sup 0}F oil temperature without auxiliary heaters. The comparative cylinder turbocharged diesel engines representing conditions commonly found in the commercial and off-highway sectors, These studies indicate that combining high capacity cold cranking amperage batteries, high pressure ether aid injection, and SAE 5W-30 synthetic oil resulted in a system that safely starts diesel engines down to actual oil temperatures of at least {minus} 10 {sup 0}F.

  14. PNNL delivers expertise, technology to biofuels start-up, InEnTec

    ScienceCinema (OSTI)

    None

    2012-12-31

    Initially through its Entrepreneurial Leave of Absence Program, PNNL gives biofuels innovators a start in opening up a new business based on technology developed for incinerating waste on the Hanford Site. Today, the companies Plasma Enhanced Melters are in operation around the world converting organic waste into valuable, clean fuels.

  15. USABC Development of 12 Volt Battery for Start-Stop Application: Preprint

    SciTech Connect (OSTI)

    Tataria, H.; Gross, O.; Bae, C.; Cunningham, B.; Barnes, J. A.; Deppe, J.; Neubauer, J.

    2015-02-01

    Global automakers are accelerating the development of fuel efficient vehicles, as a part of meeting regional regulatory CO2 emissions requirements. The micro hybrid vehicles with auto start-stop functionality are considered economical solutions for the stringent European regulations. Flooded lead acid batteries were initially considered the most economical solution for idle-stop systems. However, the dynamic charge acceptance (DCA) at lower state-of-charge (SOC) was limiting the life of the batteries. While improved lead-acid batteries with AGM and VRLA features have improved battery longevity, they do not last the life of the vehicle. The United States Advanced Battery Consortium (or USABC, a consortium of GM, Ford, and Chrysler) analyzed energy storage needs for a micro hybrid automobile with start-stop capability, and with a single power source. USABC has analyzed the start-stop behaviors of many drivers and has developed the requirements for the start-stop batteries (Table 3). The testing procedures to validate the performance and longevity were standardized and published. The guideline for the cost estimates calculations have also been provided, in order to determine the value of the newly developed modules. The analysis effort resulted in a set of requirements which will help the battery manufacturers to develop a module to meet the automotive Original Equipment Manufacturers (OEM) micro hybrid vehicle requirements. Battery developers were invited to submit development proposals and two proposals were selected for 50% cost share with USABC/DOE.

  16. JLab Nanotube Research Leads To Newport News Start-Up (Daily Press) |

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

    Jefferson Lab Nanotube Research Leads To Newport News Start-Up (Daily Press) External Link: http://articles.dailypress.com/2012-08-03/news/dp-nws-cp-jefferson-lab-spinoff-2... By jlab_admin on Fri, 2012-08-03

  17. First LNG from North field overcomes feed, start-up problems

    SciTech Connect (OSTI)

    Redha, A.; Rahman, A.; Al-Thani, N.H.; Ishikura, Masayuki; Kikkawa, Yoshitsugi

    1998-08-24

    Qatar Gas LNG is the first LNG project in the gas-development program of the world`s largest gas reservoir, North field. The LNG plant was completed within the budget and schedule. The paper discusses the LNG plant design, LNG storage and loading, alternative mercaptan removal, layout modification, information and control systems, training, data management systems, start-up, and performance testing.

  18. Soil Analysis using the semi-parametric NAA technique

    SciTech Connect (OSTI)

    Zamboni, C. B.; Silveira, M. A. G.; Medina, N. H.

    2007-10-26

    The semi-parametric Neutron Activation Analysis technique, using Au as a flux monitor, was applied to measure element concentrations of Br, Ca, Cl, K, Mn and Na for soil characterization. The results were compared with those using the Instrumental Neutron Activation Analysis technique and they found to be compatible. The viability, advantages, and limitations of using these two analytic methodologies are discussed.

  19. Resin infiltration transfer technique

    DOE Patents [OSTI]

    Miller, David V.; Baranwal, Rita

    2009-12-08

    A process has been developed for fabricating composite structures using either reaction forming or polymer infiltration and pyrolysis techniques to densify the composite matrix. The matrix and reinforcement materials of choice can include, but are not limited to, silicon carbide (SiC) and zirconium carbide (ZrC). The novel process can be used to fabricate complex, net-shape or near-net shape, high-quality ceramic composites with a crack-free matrix.

  20. Weld braze technique

    DOE Patents [OSTI]

    Kanne, Jr., William R.; Kelker, Jr., John W.; Alexander, Robert J.

    1982-01-01

    High-strength metal joints are formed by a combined weld-braze technique. A hollow cylindrical metal member is forced into an undersized counterbore in another metal member with a suitable braze metal disposed along the bottom of the counterbore. Force and current applied to the members in an evacuated chamber results in the concurrent formation of the weld along the sides of the counterbore and a braze along the bottom of the counterbore in one continuous operation.

  1. Image compression technique

    DOE Patents [OSTI]

    Fu, Chi-Yung; Petrich, Loren I.

    1997-01-01

    An image is compressed by identifying edge pixels of the image; creating a filled edge array of pixels each of the pixels in the filled edge array which corresponds to an edge pixel having a value equal to the value of a pixel of the image array selected in response to the edge pixel, and each of the pixels in the filled edge array which does not correspond to an edge pixel having a value which is a weighted average of the values of surrounding pixels in the filled edge array which do correspond to edge pixels; and subtracting the filled edge array from the image array to create a difference array. The edge file and the difference array are then separately compressed and transmitted or stored. The original image is later reconstructed by creating a preliminary array in response to the received edge file, and adding the preliminary array to the received difference array. Filling is accomplished by solving Laplace's equation using a multi-grid technique. Contour and difference file coding techniques also are described. The techniques can be used in a method for processing a plurality of images by selecting a respective compression approach for each image, compressing each of the images according to the compression approach selected, and transmitting each of the images as compressed, in correspondence with an indication of the approach selected for the image.

  2. Image compression technique

    DOE Patents [OSTI]

    Fu, C.Y.; Petrich, L.I.

    1997-03-25

    An image is compressed by identifying edge pixels of the image; creating a filled edge array of pixels each of the pixels in the filled edge array which corresponds to an edge pixel having a value equal to the value of a pixel of the image array selected in response to the edge pixel, and each of the pixels in the filled edge array which does not correspond to an edge pixel having a value which is a weighted average of the values of surrounding pixels in the filled edge array which do correspond to edge pixels; and subtracting the filled edge array from the image array to create a difference array. The edge file and the difference array are then separately compressed and transmitted or stored. The original image is later reconstructed by creating a preliminary array in response to the received edge file, and adding the preliminary array to the received difference array. Filling is accomplished by solving Laplace`s equation using a multi-grid technique. Contour and difference file coding techniques also are described. The techniques can be used in a method for processing a plurality of images by selecting a respective compression approach for each image, compressing each of the images according to the compression approach selected, and transmitting each of the images as compressed, in correspondence with an indication of the approach selected for the image. 16 figs.

  3. Electromagnetic Techniques | Open Energy Information

    Open Energy Info (EERE)

    Physical Properties See Electrical Techniques Electromagnetic techniques utilize EM induction processes to measure one or more electric or magnetic field components resulting...

  4. Electrical Techniques | Open Energy Information

    Open Energy Info (EERE)

    fluid type and phase state of the pore water Thermal: Resistivity influenced by temperature Dictionary.png Electrical Techniques: Electrical techniques aim to image the...

  5. Property:ExpActivityDate | Open Energy Information

    Open Energy Info (EERE)

    started or year of activity. Subproperties This property has the following 1 subproperty: M Micro-Earthquake At Kilauea East Rift Geothermal Area (FURUMOTO, 1976) Pages using the...

  6. Applied ALARA techniques

    SciTech Connect (OSTI)

    Waggoner, L.O.

    1998-02-05

    The presentation focuses on some of the time-proven and new technologies being used to accomplish radiological work. These techniques can be applied at nuclear facilities to reduce radiation doses and protect the environment. The last reactor plants and processing facilities were shutdown and Hanford was given a new mission to put the facilities in a safe condition, decontaminate, and prepare them for decommissioning. The skills that were necessary to operate these facilities were different than the skills needed today to clean up Hanford. Workers were not familiar with many of the tools, equipment, and materials needed to accomplish:the new mission, which includes clean up of contaminated areas in and around all the facilities, recovery of reactor fuel from spent fuel pools, and the removal of millions of gallons of highly radioactive waste from 177 underground tanks. In addition, this work has to be done with a reduced number of workers and a smaller budget. At Hanford, facilities contain a myriad of radioactive isotopes that are 2048 located inside plant systems, underground tanks, and the soil. As cleanup work at Hanford began, it became obvious early that in order to get workers to apply ALARA and use hew tools and equipment to accomplish the radiological work it was necessary to plan the work in advance and get radiological control and/or ALARA committee personnel involved early in the planning process. Emphasis was placed on applying,ALARA techniques to reduce dose, limit contamination spread and minimize the amount of radioactive waste generated. Progress on the cleanup has,b6en steady and Hanford workers have learned to use different types of engineered controls and ALARA techniques to perform radiological work. The purpose of this presentation is to share the lessons learned on how Hanford is accomplishing radiological work.

  7. Exploration of cloud computing late start LDRD #149630 : Raincoat. v. 2.1.

    SciTech Connect (OSTI)

    Echeverria, Victor T.; Metral, Michael David; Leger, Michelle A.; Gabert, Kasimir Georg; Edgett, Patrick Garrett; Thai, Tan Q.

    2010-09-01

    This report contains documentation from an interoperability study conducted under the Late Start LDRD 149630, Exploration of Cloud Computing. A small late-start LDRD from last year resulted in a study (Raincoat) on using Virtual Private Networks (VPNs) to enhance security in a hybrid cloud environment. Raincoat initially explored the use of OpenVPN on IPv4 and demonstrates that it is possible to secure the communication channel between two small 'test' clouds (a few nodes each) at New Mexico Tech and Sandia. We extended the Raincoat study to add IPSec support via Vyatta routers, to interface with a public cloud (Amazon Elastic Compute Cloud (EC2)), and to be significantly more scalable than the previous iteration. The study contributed to our understanding of interoperability in a hybrid cloud.

  8. Method and apparatus for operating a self-starting air heating system

    DOE Patents [OSTI]

    Heinrich, Charles E.

    1983-12-06

    A self-starting, fuel fired, air heating system including a fuel burner fired vapor generator, a turbine, and a condenser connected in a closed circuit such that the vapor output from the vapor generator is conducted to the turbine and then to the condenser where it is condensed for return to the vapor generator. The turbine drives an air blower which passes air over the condenser for cooling the condenser and heating the air. Also, a condensate pump is driven by the turbine. The disclosure is particularly concerned with a method and apparatus which on start-up prevents the vapor generator's vapor output from being conducted to the turbine until a predetermined pressure differential has been achieved. However, after the vapor flow is once permitted, it cannot again be prevented until after the fuel burner has been shut off and restarted.

  9. Well Log Techniques At Snake River Plain Region (DOE GTP) | Open...

    Open Energy Info (EERE)

    navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Well Log Techniques At Snake River Plain Region (DOE GTP) Exploration Activity Details Location Snake...

  10. Construction, Qualification, and Low Rate Production Start-up of a DC Bus

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

    Capacitor High Volume Manufacturing Facility with Capacity to Support 100,000 Electric Drive Vehicles | Department of Energy 1 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation arravt029_ape_sawyer_2011_p.pdf (670.52 KB) More Documents & Publications Construction, Qualification, and Low Rate Production Start-up of a DC Bus Capacitor High Volume Manufacturing Facility with Capacity to Support 100,000 Electric Drive Vehicles

  11. Nonrecovery cokemaking/cogeneration complex at Inland Steel scheduled to start up in mid-1998

    SciTech Connect (OSTI)

    Samways, N.L.

    1997-12-01

    A 1.33 million ton/year cokemaking/cogeneration power complex is under construction at the Indiana Harbor Works. The cokemaking plant consists of four batteries of nonrecovery type coke ovens representing a total of 268 ovens. The cogeneration energy facilities include: 16 heat recovery boilers; a steam turbine generator, and a flue gas desulfurization system. Start-up is scheduled for mid-1998. Both facilities are described.

  12. CREED to Help Cleantech Start-ups with Go-to-Market Strategies - News

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

    Releases | NREL CREED to Help Cleantech Start-ups with Go-to-Market Strategies August 17, 2011 The Colorado Center for Renewable Energy Economic Development (CREED) at U.S. Department of Energy's National Renewable Energy Laboratory (NREL) invites cleantech entrepreneurs to attend the next event in its Entrepreneur Series. The Aug. 25 class, "Go-to-Market Strategies," will help cleantech entrepreneurs analyze primary and secondary markets and teach them how to build and use a

  13. Helping Cleantech Start-ups with Strategic Messaging - News Releases | NREL

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

    Helping Cleantech Start-ups with Strategic Messaging December 5, 2011 The Colorado Center for Renewable Energy Economic Development (CREED) at U.S. Department of Energy's National Renewable Energy Laboratory (NREL) invites cleantech entrepreneurs to attend the next event in its Entrepreneur Series. The Dec. 8 class, "Strategic Messaging: Finding the Words to Win," will help cleantech entrepreneurs learn how to craft language about their companies that can be used in pitches, press

  14. Minto, Alaska Lakeview Lodge START Program Weatherization and Rehab Project Final Report

    SciTech Connect (OSTI)

    Titus, Bessie; Messier, Dave

    2015-11-20

    This report details the process that Minto Village Council undertook during the DOE sponsored START program and the work that was completed on the main energy consumer in the community, the Minto Lakeview Lodge. The report takes a look at the steps leading up to the large weatherization and renovation project, the work the was completed as a result of the funding and the results in terms of effect on the community and real energy savings.

  15. Small business given start by Jefferson Lab now $40 million company, wins

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

    SURA/JLab Small Disadvantaged Business award | Jefferson Lab Small business given start by Jefferson Lab now $40 million company, wins SURA/JLab Small Disadvantaged Business award Wildflower International, Ltd. business owner and manager Kimberly deCastro accepts SURA/JLab Small Disadvantaged Business Award Danny Lloyd, (left to right) JLab's purchasing and small business manager, poses for a photo with Wildflower International, Ltd. business owner and manager Kimberly deCastro and

  16. Russia's views on cruise missiles in the context of START III

    SciTech Connect (OSTI)

    Ball, D Y

    2000-10-30

    The abysmal state of Russia's conventional forces has caused Russia to rely on nuclear weapons to ensure its security. This reliance was formalized in Russia's military doctrine which states that nuclear weapons can be used ''in situations critical to the national security of the RF and its allies.'' In fact, most Russian security analysts believe that this dependence on nuclear weapons will remain for the foreseeable future because the economy will have to improve significantly before a conventional force build up can be contemplated. Yet, despite Russia's need to rely on nuclear weapons, even this may be problematic because its economic plight may create difficulties in maintaining its current level of nuclear forces. Thus, Russia has a keen interest in negotiating a treaty to reduce Strategic Nuclear Forces below START II levels and would prefer to go even beyond the 2,000-2,500 numbers agreed to by Presidents Yeltsin and Clinton in Helsinki in 1997. Sergei Rogov, an influential defense analyst, believes that Russia's strategic nuclear forces will fall below 1,000 warheads by 2010 irrespective of arms control agreements. Accordingly, Russia is keen to ensure rough parity with the US. To retain a credible deterrent posture at these lower levels, Russia believes that it is important to restrain US sea-launched cruise missiles (SLCM)--forces that have heretofore not been captured as strategic weapons in the START treaties. Russian officials reason that once strategic nuclear forces go to very low levels, SLCM capabilities become strategically significant. In fact, according to two well-known Russian security analysts, Anatoli Diakov and Pavel Podvig, Russia's current START III negotiating position calls for the complete elimination of all SLCMs, both nuclear and conventional. Prior to assessing Russia's position regarding cruise missiles and START III, I will examine Russia's overall view of its security position vis-a-vis the US in order to provide background for

  17. Poster — Thur Eve — 03: Application of the non-negative matrix factorization technique to [{sup 11}C]-DTBZ dynamic PET data for the early detection of Parkinson's disease

    SciTech Connect (OSTI)

    Lee, Dong-Chang; Jans, Hans; McEwan, Sandy; Riauka, Terence; Martin, Wayne; Wieler, Marguerite

    2014-08-15

    In this work, a class of non-negative matrix factorization (NMF) technique known as alternating non-negative least squares, combined with the projected gradient method, is used to analyze twenty-five [{sup 11}C]-DTBZ dynamic PET/CT brain data. For each subject, a two-factor model is assumed and two factors representing the striatum (factor 1) and the non-striatum (factor 2) tissues are extracted using the proposed NMF technique and commercially available factor analysis software “Pixies”. The extracted factor 1 and 2 curves represent the binding site of the radiotracer and describe the uptake and clearance of the radiotracer by soft tissues in the brain, respectively. The proposed NMF technique uses prior information about the dynamic data to obtain sample time-activity curves representing the striatum and the non-striatum tissues. These curves are then used for “warm” starting the optimization. Factor solutions from the two methods are compared graphically and quantitatively. In healthy subjects, radiotracer uptake by factors 1 and 2 are approximately 35–40% and 60–65%, respectively. The solutions are also used to develop a factor-based metric for the detection of early, untreated Parkinson's disease. The metric stratifies healthy subjects from suspected Parkinson's patients (based on the graphical method). The analysis shows that both techniques produce comparable results with similar computational time. The “semi-automatic” approach used by the NMF technique allows clinicians to manually set a starting condition for “warm” starting the optimization in order to facilitate control and efficient interaction with the data.

  18. Fact #853 December 29, 2014 Stop/Start Technology is in nearly 5% of All New Light Vehicles Produced- Dataset

    Broader source: Energy.gov [DOE]

    Excel file with dataset for Fact #853: December  29, 2014 Stop/Start Technology is in nearly 5% of All New Light Vehicles Produced

  19. Report on technical exchanges between CESTA and LLNL concerning FEL/induction activities; Bilan des exchanges techniques entre le CESTA et le LLNL sur les activites LEL/induction

    SciTech Connect (OSTI)

    Thevenot, M.; Eyl, P.

    1991-11-06

    Within the framework of scientific collaboration related to FEL (Free Electron Laser) activities between LLNL (Lawrence Livermore National Laboratory, USA) and CESTA [Centre d`Etudes des Systemes et des Technologies Avancees = Advanced Technology and Systems Research Center -- Tr. Ed.], the principal subject of these exchanges was the technology of high-voltage impulse generators designed to supply induction-type [linear] accelerators (LINAC). The role of this cooperative effort, which was to pool the expertise of the two laboratories, was not limited simply to an inspection of installations and methods. On the contrary, it permitted two representatives from each center to participate intimately in the experiments conducted on the experiments conducted on the LLNL equipment, and then at CESTA. 4 refs., 1 fig.

  20. NREL to Help Four Start-ups Ramp up Solar Energy Innovations - News

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

    Releases | NREL to Help Four Start-ups Ramp up Solar Energy Innovations DOE to provide $5.8 million to support early-stage solar technologies through Incubator program at NREL September 1, 2011 Companies with innovative, game-changing ways to lower the cost of solar energy have been awarded $5.8 million to work with the U.S. Department of Energy's National Renewable Energy Laboratory. The SunShot Incubator Program is an expansion of DOE's successful PV Technology Incubator Program, launched

  1. START-3: Operational Evaluations of the ISUS Engine Ground Demonstration Thermionic Power System

    SciTech Connect (OSTI)

    Luchau, D.W.; Luke, J.R.; Wyant, F.J.

    1998-10-08

    START-3 was a test program conducted in order to demonstrate and characterize the operational performance of the prototype Integrated Solar Upper Stage (ISUS) thermionic power system. The test device consisted of a graphite thermal storage uni~ multilayer foil insulation, and sixteen thermionic converters electrically connected in a series array. Several thermal input conditions were achieved during the test, which resulted in measuring converter performance at average converter hot shoe temperatures in the range of 1600 K to 2000 K. Results indicate that the ;hermionic converter; did not perform as weil as expected in the array individual sixteen converters is currently being performed.

  2. Iowa Start-up Taps Ames Laboratory Technology in Challenge | Department of

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

    Energy Taps Ames Laboratory Technology in Challenge Iowa Start-up Taps Ames Laboratory Technology in Challenge August 10, 2011 - 2:21pm Addthis Using gas atomization technology developed at the Ames Lab (click through the photo to see a video), IPAT will be able to make titanium powder 10 times more efficiently than traditional powder-making methods. Above right, 1.8 grams of gas atomized titanium powder makes a finished 1.8 gram titanium bolt. | Image Courtesy of IPAT Using gas atomization

  3. Method and system for controlling start of a permanent magnet machine

    DOE Patents [OSTI]

    Walters, James E.; Krefta, Ronald John

    2003-10-28

    Method and system for controlling a permanent magnet machine are provided. The method provides a sensor assembly for sensing rotor sector position relative to a plurality of angular sectors. The method further provides a sensor for sensing angular increments in rotor position. The method allows starting the machine in a brushless direct current mode of operation using a calculated initial rotor position based on an initial angular sector position information from the sensor assembly. Upon determining a transition from the initial angular sector to the next angular sector, the method allows switching to a sinusoidal mode of operation using rotor position based on rotor position information from the incremental sensor.

  4. Laboratory Director Stewart Prager heralds start of new era with NSTX-U and

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

    looks to future projects in "State of the Laboratory" address | Princeton Plasma Physics Lab Laboratory Director Stewart Prager heralds start of new era with NSTX-U and looks to future projects in "State of the Laboratory" address By Jeanne Jackson DeVoe October 13, 2015 Tweet Widget Google Plus One Share on Facebook PPPL Director Stewart Prager (Photo by Elle Starkman/PPPL Office of Communications) PPPL Director Stewart Prager The completion of the $94 million National

  5. Laboratory Director Stewart Prager heralds start of new era with NSTX-U and

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

    looks to future projects in "State of the Laboratory" address | Princeton Plasma Physics Lab Laboratory Director Stewart Prager heralds start of new era with NSTX-U and looks to future projects in "State of the Laboratory" address By Jeanne Jackson DeVoe October 28, 2015 Tweet Widget Google Plus One Share on Facebook PPPL Director Stewart Prager (Photo by Elle Starkman/PPPL Office of Communications) PPPL Director Stewart Prager The completion of the $94 million National

  6. COST BREAKDOWN AWARD NO: START DATE: EXPIRATION DATE: FISCAL YEAR BREAKDOWN OF FUNDS

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

    COST BREAKDOWN AWARD NO: START DATE: EXPIRATION DATE: FISCAL YEAR BREAKDOWN OF FUNDS ELEMENTS FY FY FY FY FY TOTAL Direct Labor Overhead Materials Supplies Travel Other Direct Costs Subcontractors Total Direct Costs G&A Expense Total All Costs DOE Share* Awardee Share* Overhead Rate G&A Rate 1. The cost elements indicated are provided as an example only. Your firm should indicate the costs elements you have used on your invoices. 2. You should indicate the cost incurred for each of your

  7. JLab Roads Update: Rattley Rd. Closure Planned to Start Week of July 11

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

    (updated posted June 23, 2016) | Jefferson Lab Roads Update: Rattley Rd. Closure Planned to Start Week of July 11 (updated posted June 23, 2016) JLab Road Work Update: Status of Work on Lawrence Dr. and Upcoming Closure of Rattley Rd. (update posted July 5, 2016) The final layer of asphalt is scheduled to go on Lawrence Drive this week (week of July 4, 2016). The plan is to complete this portion of the work on Friday, July 8. An announcement will be made when the Lawrence Dr./Jefferson

  8. Design, start up, and three years operating experience of an ammonia scrubbing, distillation, and destruction plant

    SciTech Connect (OSTI)

    Gambert, G.

    1996-12-31

    When the rebuilt Coke Plant started operations in November of 1992, it featured a completely new closed circuit secondary cooler, ammonia scrubbing, ammonia distillation, and ammonia destruction plants. This is the second plant of this type to be built in North America. To remove the ammonia from the gas, it is scrubbed with three liquids: Approximately 185 gallons/minute of cooled stripped liquor from the ammonia stills; Light oil plant condensate; and Optionally, excess flushing liquor. These scrubbers typically reduce ammonia content in the gas from 270 Grains/100 standard cubic feet to 0.2 Grains/100 standard cubic feet.

  9. Borehole Seismic Techniques | Open Energy Information

    Open Energy Info (EERE)

    Technique: Downhole Techniques Information Provided by Technique Lithology: Rock unit density influences elastic wave velocities StratigraphicStructural: Structural geology-...

  10. COMMISSIONING AND START-UP TESTS OF ALPHA-CONTAMINATED SOLID WASTE SORTING, CEMENTING, AND INTERIM STORAGE FACILITIES AT BELGOPROCESS (BELGIUM)

    SciTech Connect (OSTI)

    GLIBERT, R.C.; NUYT, G.; LAMOTTE, G.; RENARD, CL.; DE GOEYSE, A.; GOETSCHALCKX, R.; GHYS, B.

    2003-02-27

    The alpha-contaminated solid waste generated in Belgium results from past activities in the fuel cycle (R & D +Reprocessing and MOX fabrication pilot plants) and present operation of BELGONUCLEAIRE's MOX fuel fabrication plant. After the main steps in the management of alpha-contaminated solid waste were established, BELGONUCLEAIRE, with the backing of BELGOPROCESS and ONDRAF/NIRAS, started the design and construction of the T & C and interim-storage facilities for this alpha waste. The accumulated solid alpha radwaste containing a mixture of combustible and non-combustible material will be sorted. After sorting, both the accumulated and recently-generated non-combustible alpha waste will be embedded in a cement matrix. The erection of the sorting and cementing units which include glove-boxes and the interim storage building for conditioned packages was completed at BELGOPROCESS, at the beginning of year 2002. Start-up operations for both facilities have been performed. Operating tests of the sorting and cementing units were completed in July 2002 and inactive operation campaigns were started in August 2002. The results of the tests and inactive campaigns are given. Overall testing of the storage building supervised by the Safety Authorities was successfully performed at the end of 202 after completion of the operating tests on the equipment. The present paper summarizes the main information collected during the tests and campaigns, some of which has led to modifications of the equipment originally installed.

  11. Dose Reduction Techniques

    SciTech Connect (OSTI)

    WAGGONER, L.O.

    2000-05-16

    As radiation safety specialists, one of the things we are required to do is evaluate tools, equipment, materials and work practices and decide whether the use of these products or work practices will reduce radiation dose or risk to the environment. There is a tendency for many workers that work with radioactive material to accomplish radiological work the same way they have always done it rather than look for new technology or change their work practices. New technology is being developed all the time that can make radiological work easier and result in less radiation dose to the worker or reduce the possibility that contamination will be spread to the environment. As we discuss the various tools and techniques that reduce radiation dose, keep in mind that the radiological controls should be reasonable. We can not always get the dose to zero, so we must try to accomplish the work efficiently and cost-effectively. There are times we may have to accept there is only so much you can do. The goal is to do the smart things that protect the worker but do not hinder him while the task is being accomplished. In addition, we should not demand that large amounts of money be spent for equipment that has marginal value in order to save a few millirem. We have broken the handout into sections that should simplify the presentation. Time, distance, shielding, and source reduction are methods used to reduce dose and are covered in Part I on work execution. We then look at operational considerations, radiological design parameters, and discuss the characteristics of personnel who deal with ALARA. This handout should give you an overview of what it takes to have an effective dose reduction program.

  12. Start-up and control method and apparatus for resonant free piston Stirling engine

    DOE Patents [OSTI]

    Walsh, Michael M.

    1984-01-01

    A resonant free-piston Stirling engine having a new and improved start-up and control method and system. A displacer linear electrodynamic machine is provided having an armature secured to and movable with the displacer and having a stator supported by the Stirling engine housing in juxtaposition to the armature. A control excitation circuit is provided for electrically exciting the displacer linear electrodynamic machine with electrical excitation signals having substantially the same frequency as the desired frequency of operation of the Stirling engine. The excitation control circuit is designed so that it selectively and controllably causes the displacer electrodynamic machine to function either as a generator load to extract power from the displacer or the control circuit selectively can be operated to cause the displacer electrodynamic machine to operate as an electric drive motor to apply additional input power to the displacer in addition to the thermodynamic power feedback to the displacer whereby the displacer linear electrodynamic machine also is used in the electric drive motor mode as a means for initially starting the resonant free-piston Stirling engine.

  13. Disturbed subsurface microbial communities follow equivalent trajectories despite different structural starting points

    SciTech Connect (OSTI)

    Handley, Kim M.; Wrighton, Kelly C.; Miller, Christopher S.; Wilkins, Michael J.; Kantor, Rose S.; Thomas, Brian C.; Williams, Kenneth H.; Gilbert, Jack A.; Long, Philip E.; Banfield, Jillian F.

    2015-03-01

    We explored the impact of the starting community composition and structure on ecosystem response to perturbations using organic carbon amendment experiments. Subsurface sediment was partitioned into flow-through columns, and the microbial communities were initially stimulated in situ by addition of acetate as a carbon and electron donor source. This drove community richness and evenness down, and pushed the system into a new biogeochemical state characterized by iron reduction. Reconstructed near-full-length 16S rRNA gene sequence analysis indicated a concomitant enrichment of Desulfuromonadales, Comamonadaceae and Bacteroidetes lineages. After 10 to 12 days, acetate was exchange for lactate in a subset of columns. Following the clear onset of sulfate reduction (35 days after acetate-amendment), acetate was substituted for lactate in additional columns. Acetatestimulated communities differed markedly during each biogeochemical regime and at each lactate-switch. Regardless, however, of when communities were switched to lactate, they followed comparable trajectories with respect to composition and structure, with convergence evident one week after each switch, and marked after one month of lactate amendment. During sulfate reduction all treatments were enriched in Firmicutes and a number of species likely involved in sulfate reduction (notably Desulfobulbus, Desulfosporosinus, Desulfitobacterium and Desulfotomaculum). Lactate treatments were distinguished by substantially lower relative abundances of Desulfotomaculum and Bacteroidetes, and enrichments of Psychrosinus and Clostridiales species. Results imply that the structure of the starting community was not significant in controlling organism selection in community succession.

  14. The start-up of the DIOS pilot plant (DIOS Project)

    SciTech Connect (OSTI)

    Sawada, Terutoshi

    1995-12-01

    The DIOS process has been successfully developed as an 8-year project commenced in April 1988. Based on the results of the element studies reported at the previous conference and at other meetings, the pilot plant, with a designed capacity of 500 t/d, was constructed and started up in october 1993. After the starting operation with the single smelting reduction furnace in the beginning of the first campaign, the pilot plant has been principally operated in integration, that is, with the smelting reduction furnace connected with the preheating and prereduction furnaces. So far five campaigns have been successfully conducted on schedule. The operation has been improved gradually and the designed performance has been achieved. New processes are targeted at the direct use of coal and iron ore fines to eliminate not only the problematic coke ovens but also pellet and sinter plants. The direct smelting reduction processes currently at the most advanced stage of development are the DIOS in Japan, the AISI in the USA and the HIsmelt in Australia.

  15. Quick start user%3CU%2B2019%3Es guide for the PATH/AWARE decision support system.

    SciTech Connect (OSTI)

    Knowlton, Robert G.; Melton, Brad Joseph; Einfeld, Wayne; Tucker, Mark D; Franco, David Oliver; Yang, Lynn I.

    2013-06-01

    The Prioritization Analysis Tool for All-Hazards/Analyzer for Wide Area Restoration Effectiveness (PATH/AWARE) software system, developed by Sandia National Laboratories, is a comprehensive decision support tool designed to analyze situational awareness, as well as response and recovery actions, following a wide-area release of chemical, biological or radiological materials. The system provides capability to prioritize critical infrastructure assets and services for restoration. It also provides a capability to assess resource needs (e.g., number of sampling teams, laboratory capacity, decontamination units, etc.), timelines for consequence management activities, and costs. PATH/AWARE is a very comprehensive tool set with a considerable amount of database information managed through a Microsoft SQL (Structured Query Language) database engine, a Geographical Information System (GIS) engine that provides comprehensive mapping capabilities, as well as comprehensive decision logic to carry out the functional aspects of the tool set. This document covers the basic installation and operation of the PATH/AWARE tool in order to give the user enough information to start using the tool. A companion users manual is under development with greater specificity of the PATH/AWARE functionality.

  16. Structural features of the human C3 gene: Intron/exon organization, transcriptional start site, and promoter region sequence

    SciTech Connect (OSTI)

    Vik, D.P.; Amiguet, P.; Moffat, G.J.; Fey, M.; Amiguet-Barras, F.; Tack, B.F. ); Wetsel, R.A. )

    1991-01-29

    The third component of human complement (C3) is a key molecule in the activation of the complement cascade. C3 cDNA fragments were used to identify seven cosmid clones that covered all but 1 kilobase pair (kb) of the C3 gene. The remainder of the gene was cloned by using the polymerase chain reaction. These clones were used to identify the interon/exon boundaries and to map the gene. The C3 gene is 42 kb in length and comprises 41 exons ranging in size from 52 to 213 base pairs (bp). The transcription start site was identified by primer extension, and approximately 1 kb of DNA upstream of this site was sequenced. Putative TATA and CAAT boxes were identified along with a number of regions that shared homology with known regulatory sequences. These include responsive elements for interferon-{gamma}, interleukin-6, nuclear factor kB, estrogen, glucocorticoids and thyroid hormone. Several of these agents have been shown to affect C3 synthesis and mRNA levels. The sizes of the exons in C3 were compared to those of C4 and {alpha}{sub 2}-macroglobulin ({alpha}{sub 2}M). Thirty-nine of 41 exons in C4 were found to be of similar size to the analogous ones in C3, and two-thirds of those in {alpha}{sub 2}M were also similarly sized, supporting the hypothesis that these genes arose from a common ancestor.

  17. Active Seismic Methods | Open Energy Information

    Open Energy Info (EERE)

    Methods Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Active Seismic Methods Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration...

  18. Start-up operations at the Fenton Hill HDR Pilot Plant

    SciTech Connect (OSTI)

    Ponden, R.F.

    1991-01-01

    With the completion of the surface test facilities at Fenton Hill, the Hot Dry Rock (HDR) Geothermal Energy Program at Los Alamos is moving steadily into the next stage of development. Start-up operations of the surface facilities have begun in preparation for testing the Phase II reservoir and the initial steady-state phase of operations. A test program has been developed that will entail a number of operational strategies to characterize the thermal performance of the reservoir. The surface facilities have been designed to assure high reliability while providing the flexibility and control to support the different operating modes. This paper presents a review of the system design and provides a discussion of the preliminary results of plant operations and equipment performance.

  19. Start-Up Operations at the Fenton Hill HDR Pilot Plant

    SciTech Connect (OSTI)

    Ponden, Raymond F.

    1992-03-24

    With the completion of the surface test facilities at Fenton Hill, the Hot Dry Rock (HDR) Geothermal Energy Program at Los Alamos is moving steadily into the next stage of development. Start-up operations of the surface facilities have begun in preparation for testing the Phase II reservoir and the initial steady-state phase of operations. A test program has been developed that will entail a number of operational strategies to characterize the thermal performance of the reservoir. The surface facilities have been designed to assure high reliability while providing the flexibility and control to support the different operating modes. This paper presents a review of the system design and provides a discussion of the preliminary results of plant operations and equipment performance.

  20. Effect of CNG start - gasoline run on emissions from a 3/4 ton pick-up truck

    SciTech Connect (OSTI)

    Springer, K.J.; Smith, L.R.; Dickinson, A.G.

    1994-10-01

    This paper describes experiments to determine the effect on exhaust emissions of starting on compressed natural gas (CNG) and then switching to gasoline once the catalyst reaches operating temperature. Carbon monoxide, oxides of nitrogen, and detailed exhaust hydrocarbon speciation data were obtained for dedicated CNG, then unleaded gasoline, and finally CNG start - gasoline run using the Federal Test Procedure at 24{degree}C and at -7{degree}C. The results was a reductiopn in emissions from the gasoline baseline, especially at -7{degree}C. It was estimated that CNG start - gasoline run resulted in a 71 percent reduction in potential ozone formation per mile. 3 refs., 6 figs., 11 tabs.

  1. Diagnostic techniques used in AVLIS

    SciTech Connect (OSTI)

    Heestand, G.M.; Beeler, R.G.

    1992-12-01

    This is the second part of a general overview talk on the atomic vapor laser isotope separation (AVLIS) process. In this presentation the authors will discuss the diagnostic techniques used to measure key parameters in their atomic vapor including densities, temperature, velocities charge exchange rates and background ionization levels. Although these techniques have been extensively applied to their uranium program they do have applicability to other systems. Relevant data demonstrating these techniques will be shown.

  2. Gravity Techniques | Open Energy Information

    Open Energy Info (EERE)

    in density, such as at fault contacts. 2 Gravity techniques are also applied towards reservoir monitoring for subsidence and mass gain or loss within a geothermal reservoir...

  3. Downhole Techniques | Open Energy Information

    Open Energy Info (EERE)

    in-situ within the well, downhole techniques are capable of accurately constraining these reservoir parameters relative to depth.2 Gaining an understanding of these reservoir...

  4. Low temperature material bonding technique

    DOE Patents [OSTI]

    Ramsey, J. Michael (Knoxville, TN); Foote, Robert S. (Oak Ridge, TN)

    2002-02-12

    A method of performing a lower temperature bonding technique to bond together two mating pieces of glass includes applying a sodium silicate aqueous solution between the two pieces.

  5. Low Temperature Material Bonding Technique

    DOE Patents [OSTI]

    Ramsey, J. Michael (Knoxville, TN); Foote, Robert S. (Oak Ridge, TN)

    2000-10-10

    A method of performing a lower temperature bonding technique to bond together two mating pieces of glass includes applying a sodium silicate aqueous solution between the two pieces.

  6. techniques | OpenEI Community

    Open Energy Info (EERE)

    and discussion of smart grid technologies, tools, and techniques. The Smart Grid Investment Grant (SGIG) program is authorized by the Energy Independence and Security Act of...

  7. Fact #853 December 29, 2014 Stop/Start Technology is in nearly 5% of All New Light Vehicles Produced

    Broader source: Energy.gov [DOE]

    Stop/Start technology improves fuel economy by reducing engine idle time. As a vehicle slows to a stop, the engine is shut down but then immediately restarts when the break pedal is released so...

  8. Energy Department Extends Deadline to Apply for START Tribal Renewable Energy Project Development Assistance to May 22, 2015

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy (DOE) Office of Indian Energy the application deadline for the third round of Strategic Technical Assistance Response Team (START) Renewable Energy Project Development Assistance to May 22, 2015.

  9. Advanced Start of Combustion Sensor Phases I and II-A: Feasibility Demonstration, Design and Optimization

    SciTech Connect (OSTI)

    Chad Smutzer

    2010-01-31

    Homogeneous Compressed Charge Ignition (HCCI) has elevated the need for Start of Combustion (SOC) sensors. HCCI engines have been the exciting focus of engine research recently, primarily because HCCI offers higher thermal efficiency than the conventional Spark Ignition (SI) engines and significantly lower NOx and soot emissions than conventional Compression Ignition (CI) engines, and could be fuel neutral. HCCI has the potential to unify all the internal combustion engine technology to achieve the high-efficiency, low-emission goal. However, these advantages do not come easy. It is well known that the problems encountered with HCCI combustion center on the difficulty of controlling the Start of Combustion. TIAX has an SOC sensor under development which has shown promise. In previous work, including a DOE-sponsored SBIR project, TIAX has developed an accelerometer-based method which was able to determine SOC within a few degrees crank angle for a range of operating conditions. A signal processing protocol allows reconstruction of the combustion pressure event signal imbedded in the background engine vibration recorded by the accelerometer. From this reconstructed pressure trace, an algorithm locates the SOC. This SOC sensor approach is nonintrusive, rugged, and is particularly robust when the pressure event is strong relative to background engine vibration (at medium to high engine load). Phase I of this project refined the previously developed technology with an engine-generic and robust algorithm. The objective of the Phase I research was to answer two fundamental questions: Can the accelerometer-based SOC sensor provide adequate SOC event capture to control an HCCI engine in a feedback loop? And, will the sensor system meet cost, durability, and software efficiency (speed) targets? Based upon the results, the answer to both questions was 'YES'. The objective of Phase II-A was to complete the parameter optimization of the SOC sensor prototype in order to reach a

  10. Metrology Techniques for the Assembly of NCSX

    SciTech Connect (OSTI)

    C. Priniski, T. Dodson, M. Duco, S. Raftopoulos, R. Ellis, and A. Brooks

    2009-09-24

    In support of the National Compact Stellerator Experiment (NCSX), stellerator assembly activities continued this past year at the Princeton Plasma Physics Laboratory (PPPL) in partnership with the Oak Ridge National Laboratory (ORNL). The construction program saw the completion of the first two Half Field-Period Assemblies (HPA), each consisting of three modular coils. The full machine includes six such sub-assemblies. A single HPA consists of three of the NCSX modular coils wound and assembled at PPPL. These geometrically-complex threedimensional coils were wound using computer-aided metrology and CAD models to tolerances within +/- 0.5mm. The assembly of these coils required similar accuracy on a larger scale with the added complexity of more individual parts and fewer degrees of freedom for correction. Several new potential positioning issues developed for which measurement and control techniques were developed. To accomplish this, CAD coordinate-based computer metrology equipment and software similar to the solutions employed for winding the modular coils was used. Given the size of the assemblies, the primary tools were both interferometeraided and Absolute Distance Measurement (ADM)-only based laser trackers. In addition, portable Coordinate Measurement Machine (CMM) arms and some novel indirect measurement techniques were employed. This paper will detail both the use of CAD coordinate-based metrology technology and the techniques developed and employed for dimensional control of NSCX subassemblies. The results achieved and possible improvements to techniques will be discussed.

  11. Cold-Start Emissions Control in Hybrid Vehicles Equipped with a Passive Hydrocarbon and NOx Adsorber

    SciTech Connect (OSTI)

    Gao, Zhiming; Kim, Miyoung; Choi, Jae-Soon; Daw, C Stuart; Parks, II, James E; Smith, David E

    2012-01-01

    We presents a study of the potential for using low-cost sorbent materials (i.e. Ag-Beta-zeolite and Fe-Mn-Zr transition metal oxides) to temporally trap hydrocarbons (HCs) and nitrogen oxides (NOx) emissions during cold-start periods in HEVs and PHEVs over transient driving cycles. The adsorption behavior of the candidate sorbent materials was characterized in our laboratory flow reactor experiments. The parameters were then used to develop a one-dimensional, transient device model which has been implemented in the Powertrain Systems Analysis Toolkit (PSAT) to simulate a passive HC and NOx absorber device. The results show that such an absorber can substantially reduce HC and NOx emissions by storing them when the 3-way catalyst is too cool to function and re-releasing them when the exhaust temperature rises. These improved emission controls do not involve any penalty in fuel consumption or require any change in engine operation. The cost of these sorbent materials is also much less than conventional 3-way catalysts.

  12. Evaluation of Neutron Radiography Reactor LEU-Core Start-Up Measurements

    SciTech Connect (OSTI)

    Bess, John D.; Maddock, Thomas L.; Smolinski, Andrew T.; Marshall, Margaret A.

    2014-11-04

    Benchmark models were developed to evaluate the cold-critical start-up measurements performed during the fresh core reload of the Neutron Radiography (NRAD) reactor with Low Enriched Uranium (LEU) fuel. Experiments include criticality, control-rod worth measurements, shutdown margin, and excess reactivity for four core loadings with 56, 60, 62, and 64 fuel elements. The worth of four graphite reflector block assemblies and an empty dry tube used for experiment irradiations were also measured and evaluated for the 60-fuel-element core configuration. Dominant uncertainties in the experimental keff come from uncertainties in the manganese content and impurities in the stainless steel fuel cladding as well as the 236U and erbium poison content in the fuel matrix. Calculations with MCNP5 and ENDF/B-VII.0 neutron nuclear data are approximately 1.4% (9?) greater than the benchmark model eigenvalues, which is commonly seen in Monte Carlo simulations of other TRIGA reactors. Simulations of the worth measurements are within the 2? uncertainty for most of the benchmark experiment worth values. The complete benchmark evaluation details are available in the 2014 edition of the International Handbook of Evaluated Reactor Physics Benchmark Experiments.

  13. Evaluation of Neutron Radiography Reactor LEU-Core Start-Up Measurements

    SciTech Connect (OSTI)

    Bess, John D.; Maddock, Thomas L.; Smolinski, Andrew T.; Marshall, Margaret A.

    2014-11-04

    Benchmark models were developed to evaluate the cold-critical start-up measurements performed during the fresh core reload of the Neutron Radiography (NRAD) reactor with Low Enriched Uranium (LEU) fuel. Experiments include criticality, control-rod worth measurements, shutdown margin, and excess reactivity for four core loadings with 56, 60, 62, and 64 fuel elements. The worth of four graphite reflector block assemblies and an empty dry tube used for experiment irradiations were also measured and evaluated for the 60-fuel-element core configuration. Dominant uncertainties in the experimental keff come from uncertainties in the manganese content and impurities in the stainless steel fuel cladding as well as the 236U and erbium poison content in the fuel matrix. Calculations with MCNP5 and ENDF/B-VII.0 neutron nuclear data are approximately 1.4% (9σ) greater than the benchmark model eigenvalues, which is commonly seen in Monte Carlo simulations of other TRIGA reactors. Simulations of the worth measurements are within the 2σ uncertainty for most of the benchmark experiment worth values. The complete benchmark evaluation details are available in the 2014 edition of the International Handbook of Evaluated Reactor Physics Benchmark Experiments.

  14. ISDAC - NRC Convair-580 Flight Hours Date Flight From To Start

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

    - NRC Convair-580 Flight Hours Date Flight From To Start End hrs 03/21/08 F01-Test-01 Ottawa Ottawa 16:15Z 18:15Z 2.2 03/22/08 F02-Test-02 Ottawa Ottawa 12:45Z 15:50Z 3.3 03/28/08 F03-Transit-01 Ottawa, ON Kenora, ON 12:23Z 15:44Z 3.6 03/28/08 F04-Transit-02 Kenora, ON Calgary, AB 16:30Z 19:36Z 3.3 03/28/08 F05-Transit-03 Calgary, AB Comox, BC 20:24Z 22:17Z 2.1 03/29/08 F06-Transit-04 Comox, BC Whitehorse, YK 17:43Z 20:50Z 3.3 03/29/08 F07-Transit-05 Whitehorse, YK Fairbanks 21:51Z 23:42Z 2.1

  15. Evaluation of Neutron Radiography Reactor LEU-Core Start-Up Measurements

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

    Bess, John D.; Maddock, Thomas L.; Smolinski, Andrew T.; Marshall, Margaret A.

    2014-11-04

    Benchmark models were developed to evaluate the cold-critical start-up measurements performed during the fresh core reload of the Neutron Radiography (NRAD) reactor with Low Enriched Uranium (LEU) fuel. Experiments include criticality, control-rod worth measurements, shutdown margin, and excess reactivity for four core loadings with 56, 60, 62, and 64 fuel elements. The worth of four graphite reflector block assemblies and an empty dry tube used for experiment irradiations were also measured and evaluated for the 60-fuel-element core configuration. Dominant uncertainties in the experimental keff come from uncertainties in the manganese content and impurities in the stainless steel fuel cladding asmore » well as the 236U and erbium poison content in the fuel matrix. Calculations with MCNP5 and ENDF/B-VII.0 neutron nuclear data are approximately 1.4% (9σ) greater than the benchmark model eigenvalues, which is commonly seen in Monte Carlo simulations of other TRIGA reactors. Simulations of the worth measurements are within the 2σ uncertainty for most of the benchmark experiment worth values. The complete benchmark evaluation details are available in the 2014 edition of the International Handbook of Evaluated Reactor Physics Benchmark Experiments.« less

  16. Form:ExplorationTechnique | Open Energy Information

    Open Energy Info (EERE)

    Exploration Technique below. If the technique already exists, you will be able to edit its information. AddEdit Technique Retrieved from "http:en.openei.orgw...

  17. Twistor inspired techniques in QCD

    SciTech Connect (OSTI)

    Duhr, C.

    2008-08-29

    I present a short review of the new twistor inspired techniques in perturbative QCD, which are the result of Witten's conjecture of a duality between twistors and string theory. I give an introduction to the main two tree-level techniques, the BCFW recursion and the CSW formalism, and show how the idea of using on-shell QCD amplitudes evaluated for complex momenta can lead to efficient techniques to perform analytic computations. Finally, I briefly discuss how these ideas can be applied to loop calculations if they are combined to the generalized unitarity approach.

  18. PFT Air Infiltration Measurement Technique

    Broader source: Energy.gov [DOE]

    The airtightness of a building can be determined by using several methods. Learn how the PFT (PerFluorocarbon tracer gas) technique provides information about air leakage and energy loss.

  19. PRELIMINARY DATA CALL REPORT ADVANCED BURNER REACTOR START UP FUEL FABRICATION FACILITY

    SciTech Connect (OSTI)

    S. T. Khericha

    2007-04-01

    The purpose of this report is to provide data for preparation of a NEPA Environmental Impact Statement in support the U. S. Department of Energy (DOE) Global Nuclear Energy Partnership (GNEP). One of the GNEP objectives is to reduce the inventory of long lived actinide from the light water reactor (LWR) spent fuel. The LWR spent fuel contains Plutonium (Pu) -239 and other transuranics (TRU) such as Americium-241. One of the options is to transmute or burn these actinides in fast neutron spectra as well as generate the electricity. A sodium-cooled Advanced Recycling Reactor (ARR) concept has been proposed to achieve this goal. However, fuel with relatively high TRU content has not been used in the fast reactor. To demonstrate the utilization of TRU fuel in a fast reactor, an Advanced Burner Reactor (ABR) prototype of ARR is proposed, which would necessarily be started up using weapons grade (WG) Pu fuel. The WG Pu is distinguished by relatively highest proportions of Pu-239 and lesser amount of other actinides. The WG Pu will be used as the startup fuel along with TRU fuel in lead test assemblies. Because such fuel is not currently being produced in the US, a new facility (or new capability in an existing facility) is being considered for fabrication of WG Pu fuel for the ABR. This report is provided in response to Data Call for the construction of startup fuel fabrication facility. It is anticipated that the facility will provide the startup fuel for 10-15 years and will take to 3 to 5 years to construct.

  20. Influence of starting precursors and synthesis methods on the physiochemical properties of zirconia

    SciTech Connect (OSTI)

    Gaydhankar, T.R.; Jha, R.K.; Nikalje, M.D.; Waghmare, K.J.

    2014-07-01

    Graphical abstract: Crystallite size of tetragonal phase of the zirconia samples prepared using different synthesis parameters and precursors as a function of calcination temperature. Surface area values of the zirconia samples calcined at 500 and 700 C are in given brackets. - Highlights: Zirconia prepared with modified solgel method is less stable compared with zirconia prepared by precipitation method. Optimized synthesis conditions shifted the glow exotherm to higher temperature range indicating better thermal stability. Tetragonal-zirconia could be synthesized in cost-effective manner using zirconium oxy-nitrate. In our studies no co-relation between the surface area and crystallite size was observed. - Abstract: Under identical and judiciously pre-optimized synthesis conditions, the influence of different combinations of zirconium sources and/or post treatment conditions on structural properties, thermal stability, phase composition and morphology of zirconia has been investigated. High surface area tetragonal zirconia could be synthesized in a cost-effective manner from 1 M solution of zirconium oxy-nitrate at pH 11 using aqueous ammonia solution as a precipitant when calcined at 400 C for 3 h. Irrespective of the preparation method, pH and starting precursor, zirconia samples prepared without digestion contained dominant monoclinic phase with some traces of tetragonal phase when calcined at 700 C. Even though there is linear decrease in surface area with increase in the crystallite size for each sample as a function of calcination temperature, no co-relation between the surface area and crystallite size could be achieved. SEM images show agglomerated and irregular shape particles between 10 to 20 ?m.

  1. Techniques for multiboson interferometry (Journal Article) |...

    Office of Scientific and Technical Information (OSTI)

    Techniques for multiboson interferometry Citation Details In-Document Search Title: Techniques for multiboson interferometry Authors: Gangadharan, Dhevan Publication Date: ...

  2. Category:Magnetotelluric Techniques | Open Energy Information

    Open Energy Info (EERE)

    Magnetotelluric Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Magnetotelluric Techniques page? For detailed...

  3. Effect of CNG start-gasoline run on emissions from a 3/4 ton pick-up truck

    SciTech Connect (OSTI)

    Springer, K.J.; Smith, L.R.; Dickinson, A.G.

    1994-10-01

    This paper describes experiments to determine the effect on exhaust emissions of starting on compressed natural gas (CNG) and then switching to gasoline once the catalyst reaches operating temperature. Carbon monoxide, oxides of nitrogen, and detailed exhaust hydrocarbon speciation data were obtained for dedicated CNG, then unleaded gasoline, and finally CNG start-gasoline run using the Federal Test Procedure at 24{degree}C and at -7{degree}C. The result was a reduction in emissions from the gasoline baseline, especially at -7{degree}C. It was estimated that CNG start - gasoline run resulted in a 71 percent reduction in potential ozone formation per mile. 3 refs., 6 figs., 11 tabs.

  4. Innovative production technique for PEFC electrodes

    SciTech Connect (OSTI)

    Bevers, D.; Guelzow, E.; Helmbold, A.; Mueller, B.

    1996-12-31

    Fuel cells are high efficient and low polluting energy conversation devices. Using hydrogen as a fuel gas they are applicable to solve environmental problems e.g. CO{sub 2} impact on the climate. Thus international research efforts have been increased in recent years. Low temperature fuel cells e.g. the PEFC are specially applicable for future transportation and stationary energy supply systems. Application and economics success of his technology is obstructed by the high investment costs with respect to conventional energy conversion devices. The intent of our activities is the improvement of electrodes and membrane-electrode-assemblies as used in PEFC. Commercial and technical aspects of electrode manufacturing have been considered in early stages of the development of the production procedure. Two different techniques are developed at DLR. The first is a rolling procedure as used for production for batteries and alkaline fuel cells which has been modified and adapted to the specific demand of PEFC electrodes. The second technique is a new printing process to produce ultra thin layers of catalyst directly on the electrolyte. In this paper we will show the first results of the first electrode technique which have been tested in fuel cells and a short description of the second very new method.

  5. Authentication techniques for smart cards

    SciTech Connect (OSTI)

    Nelson, R.A.

    1994-02-01

    Smart card systems are most cost efficient when implemented as a distributed system, which is a system without central host interaction or a local database of card numbers for verifying transaction approval. A distributed system, as such, presents special card and user authentication problems. Fortunately, smart cards offer processing capabilities that provide solutions to authentication problems, provided the system is designed with proper data integrity measures. Smart card systems maintain data integrity through a security design that controls data sources and limits data changes. A good security design is usually a result of a system analysis that provides a thorough understanding of the application needs. Once designers understand the application, they may specify authentication techniques that mitigate the risk of system compromise or failure. Current authentication techniques include cryptography, passwords, challenge/response protocols, and biometrics. The security design includes these techniques to help prevent counterfeit cards, unauthorized use, or information compromise. This paper discusses card authentication and user identity techniques that enhance security for microprocessor card systems. It also describes the analysis process used for determining proper authentication techniques for a system.

  6. Natural resource validation: A primer on concepts and techniques

    SciTech Connect (OSTI)

    Ulibarri, C.A.; Wellman, K.F.

    1997-07-01

    Natural resource valuation has always had a fundamental role in the practice of cost-benefit analysis of health, safety, and environmental issues. The authors provide an objective overview of resource valuation techniques and describe their potential role in environmental restoration/waste management (ER/WM) activities at federal facilities. This handbook considers five general classes of valuation techniques: (1) market-based techniques, which rely on historical information on market prices and transactions to determine resource values; (2) nonmarket techniques that rely on indirect estimates of resource values; (3) nonmarket techniques that are based on direct estimates of resource values; (4) cross-cutting valuation techniques, which combine elements of one or more of these methods; and (5) ecological valuation techniques used in the emerging field of ecological economics. The various valuation techniques under consideration are described by highlighting their applicability in environmental management and regulation. The handbook also addresses key unresolved issues in the application of valuation techniques generally, including discounting future values, incorporating environmental equity concerns, and concerns over the uncertainties in the measurement of natural resource values and environmental risk.

  7. New techniques said to be backed by results

    SciTech Connect (OSTI)

    Not Available

    1993-11-01

    One of the benefits to have come from activities of the International Atomic Energy Agency (IAEA) inspection teams in Iraq, according to Director General Hans Blix, is a vast amount of experience with new techniques, which may be of great value in efforts to strengthen the capability of the safeguards system. In particular, techniques of environmental monitoring could help to detect undeclared material and installations.

  8. Seismic Vulnerability Evaluations Within The Structural And Functional Survey Activities Of The COM Bases In Italy

    SciTech Connect (OSTI)

    Zuccaro, G.; Cacace, F.; Albanese, V.; Mercuri, C.; Papa, F.; Pizza, A. G.; Sergio, S.; Severino, M.

    2008-07-08

    The paper describes technical and functional surveys on COM buildings (Mixed Operative Centre). This activity started since 2005, with the contribution of both Italian Civil Protection Department and the Regions involved. The project aims to evaluate the efficiency of COM buildings, checking not only structural, architectonic and functional characteristics but also paying attention to surrounding real estate vulnerability, road network, railways, harbours, airports, area morphological and hydro-geological characteristics, hazardous activities, etc. The first survey was performed in eastern Sicily, before the European Civil Protection Exercise 'EUROSOT 2005'. Then, since 2006, a new survey campaign started in Abruzzo, Molise, Calabria and Puglia Regions. The more important issue of the activity was the vulnerability assessment. So this paper deals with a more refined vulnerability evaluation technique by means of the SAVE methodology, developed in the 1st task of SAVE project within the GNDT-DPC programme 2000-2002 (Zuccaro, 2005); the SAVE methodology has been already successfully employed in previous studies (i.e. school buildings intervention programme at national scale; list of strategic public buildings in Campania, Sicilia and Basilicata). In this paper, data elaborated by SAVE methodology are compared with expert evaluations derived from the direct inspections on COM buildings. This represents a useful exercise for the improvement either of the survey forms or of the methodology for the quick assessment of the vulnerability.

  9. Multi-scale Shock Technique

    Energy Science and Technology Software Center (OSTI)

    2009-08-01

    The code to be released is a new addition to the LAMMPS molecular dynamics code. LAMMPS is developed and maintained by Sandia, is publicly available, and is used widely by both natioanl laboratories and academics. The new addition to be released enables LAMMPS to perform molecular dynamics simulations of shock waves using the Multi-scale Shock Simulation Technique (MSST) which we have developed and has been previously published. This technique enables molecular dynamics simulations of shockmore » waves in materials for orders of magnitude longer timescales than the direct, commonly employed approach.« less

  10. Start-up Plan for Plautonium-238 Production for Radioisotope Power System (Report to Congress- June 2010)

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Administration has requested the restart of plutonium?238 (Pu?238) production in fiscal year (FY) 2011. The following joint start?up plan, consistent with the President's request, has been developed collaboratively between the Department of Energy (DOE) and the National Aeronautics and Space Administration (NASA), and defines the roles and contributions of major users of Pu?238 in response to Congressional request.

  11. Determining Plutonium Mass in Spent Fuel with Nondestructive Assay Techniques -- Preliminary Modeling Results Emphasizing Integration among Techniques

    SciTech Connect (OSTI)

    Tobin, S. J.; Fensin, M. L.; Ludewigt, B. A.; Menlove, H. O.; Quiter, B. J.; Sandoval, N. P.; Swinhoe, M. T.; Thompson, S. J.

    2009-08-03

    There are a variety of motivations for quantifying Pu in spent (used) fuel assemblies by means of nondestructive assay (NDA) including the following: strengthen the capabilities of the International Atomic Energy Agencies to safeguards nuclear facilities, quantifying shipper/receiver difference, determining the input accountability value at reprocessing facilities and providing quantitative input to burnup credit determination for repositories. For the purpose of determining the Pu mass in spent fuel assemblies, twelve NDA techniques were identified that provide information about the composition of an assembly. A key point motivating the present research path is the realization that none of these techniques, in isolation, is capable of both (1) quantifying the elemental Pu mass of an assembly and (2) detecting the diversion of a significant number of pins. As such, the focus of this work is determining how to best integrate 2 or 3 techniques into a system that can quantify elemental Pu and to assess how well this system can detect material diversion. Furthermore, it is important economically to down-select among the various techniques before advancing to the experimental phase. In order to achieve this dual goal of integration and down-selection, a Monte Carlo library of PWR assemblies was created and is described in another paper at Global 2009 (Fensin et al.). The research presented here emphasizes integration among techniques. An overview of a five year research plan starting in 2009 is given. Preliminary modeling results for the Monte Carlo assembly library are presented for 3 NDA techniques: Delayed Neutrons, Differential Die-Away, and Nuclear Resonance Fluorescence. As part of the focus on integration, the concept of"Pu isotopic correlation" is discussed and the role of cooling time determination.

  12. Magnetic Techniques | Open Energy Information

    Open Energy Info (EERE)

    in the vicinity of hydrothermal activity and indicate the presence of the geothermal reservoir and conduit structures such as faults or dikes. 3 In addition, it is possible...

  13. New Techniques for Particle Acclerators

    SciTech Connect (OSTI)

    Sessler, Andrew M.

    1990-06-01

    A review is presented of the new techniques which have been proposed for use in particle accelerators. Attention is focused upon those areas where significant progress has been made in the last two years--in particular, upon two-beam accelerators, wakefield accelerators, and plasma focusers.

  14. Solenoid-free Plasma Start-up in NSTX using Transient CHI

    SciTech Connect (OSTI)

    Raman, R; Jarboe, T; Nelson, B; Mueller, D; Soukhanovskii, V A

    2009-01-05

    Experiments in NSTX have now demonstrated the coupling of toroidal plasmas produced by the technique of Coaxial Helicity Injection (CHI) to inductive sustainment and ramp-up of the toroidal plasma current. In these discharges, the central Ohmic transformer was used to apply an inductive loop voltage to discharges with a toroidal current of about 100 kA created by CHI. The coupled discharges have ramped up to >700 kA and transitioned into an H-mode demonstrating compatibility of this startup method with conventional operation. The electron temperature in the coupled discharges reached over 800 eV and the resulting plasma had low inductance, which is preferred for long-pulse high performance discharges. These results from NSTX in combination with the previously obtained record 160 kA non-inductively-generated startup currents in an ST or tokamak in NSTX demonstrate that CHI is a viable solenoid-free plasma startup method for future STs and tokamaks.

  15. Data mining and visualization techniques

    DOE Patents [OSTI]

    Wong, Pak Chung; Whitney, Paul; Thomas, Jim

    2004-03-23

    Disclosed are association rule identification and visualization methods, systems, and apparatus. An association rule in data mining is an implication of the form X.fwdarw.Y where X is a set of antecedent items and Y is the consequent item. A unique visualization technique that provides multiple antecedent, consequent, confidence, and support information is disclosed to facilitate better presentation of large quantities of complex association rules.

  16. Active-R filter

    DOE Patents [OSTI]

    Soderstrand, Michael A.

    1976-01-01

    An operational amplifier-type active filter in which the only capacitor in the circuit is the compensating capacitance of the operational amplifiers, the various feedback and coupling elements being essentially solely resistive.

  17. Uncertainty Analysis Technique for OMEGA Dante Measurements ...

    Office of Scientific and Technical Information (OSTI)

    Uncertainty Analysis Technique for OMEGA Dante Measurements Citation Details In-Document Search Title: Uncertainty Analysis Technique for OMEGA Dante Measurements You are...

  18. Techniques for multiboson interferometry (Journal Article) |...

    Office of Scientific and Technical Information (OSTI)

    Techniques for multiboson interferometry Title: Techniques for multiboson interferometry Authors: Gangadharan, Dhevan Publication Date: 2015-07-08 OSTI Identifier: 1198623 Grant...

  19. Category:Downhole Techniques | Open Energy Information

    Open Energy Info (EERE)

    Downhole Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Downhole Techniques page? For detailed information on Downhole...

  20. Category:Seismic Techniques | Open Energy Information

    Open Energy Info (EERE)

    Seismic Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Seismic Techniques page? For detailed information on Seismic...

  1. Category:Geophysical Techniques | Open Energy Information

    Open Energy Info (EERE)

    Geophysical Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Geophysical Techniques page? For detailed information on...

  2. Category:Drilling Techniques | Open Energy Information

    Open Energy Info (EERE)

    Drilling Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Drilling Techniques page? For detailed information on Drilling...

  3. Category:Magnetic Techniques | Open Energy Information

    Open Energy Info (EERE)

    Magnetic Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Magnetic Techniques page? For detailed information on Magnetic...

  4. Hyperspectral Remote Sensing Techniques For Locating Geothermal...

    Open Energy Info (EERE)

    Remote Sensing Techniques For Locating Geothermal Resources Jump to: navigation, search OpenEI Reference LibraryAdd to library Poster: Hyperspectral Remote Sensing Techniques For...

  5. Category:Electrical Techniques | Open Energy Information

    Open Energy Info (EERE)

    Resistivity Survey E Electrical Techniques Electromagnetic Techniques R Radiometrics S Self Potential T Telluric Survey Retrieved from "http:en.openei.orgw...

  6. Category:Geochemical Techniques | Open Energy Information

    Open Energy Info (EERE)

    Techniques Technique Subcategories This category has only the following subcategory. G + Geochemical Data Analysis (2 categories) 4 pages Pages in category "Geochemical...

  7. Innovative Exploration Techniques for Geothermal Assessment at...

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

    Techniques for Geothermal Assessment at Jemez Pueblo, New Mexico Innovative Exploration Techniques for Geothermal Assessment at Jemez Pueblo, New Mexico Innovative Exploration ...

  8. Start, Stop, Restart: The Recent History of Federal Funding for Radiochemistry Education

    SciTech Connect (OSTI)

    Williamson, R. Craig

    2009-08-19

    Over the course of the 2009, Federal Fiscal Year the U.S. Departments of Homeland Security and Defense will introduce university programs designed to provide the U.S. national laboratories with a highly qualified workforce in nuclear forensics. These programs are designed to recruit the best and brightest students, develop universities research and education activities, and to enhance university/laboratory(s) interactions nuclear forensics. The approach will be comprehensive in that it will target undergraduate and graduate students, faculty members and institutions. This will include an undergraduate research program designed to encourage emerging seniors to perform research at designated national laboratories throughout the United States. In addition to the undergraduate program, a nationally competitive graduate fellowship program in nuclear forensics was established in 2008. This program provides a four-year appointment with a monthly stipend, full payment of tuition and fees, the establishment of participating universities, and required post-graduate positions in nuclear forensics. A Nuclear Forensics Education Award program will also be introduced. This broad-based program will have an impact on university programs interested in developing nuclear forensics capabilities. This will include funds for instrumentation and equipment, faculty members, students, and curriculum.

  9. Investigating High Field Gravity using Astrophysical Techniques

    SciTech Connect (OSTI)

    Bloom, Elliott D.; /SLAC

    2008-02-01

    The purpose of these lectures is to introduce particle physicists to astrophysical techniques. These techniques can help us understand certain phenomena important to particle physics that are currently impossible to address using standard particle physics experimental techniques. As the subject matter is vast, compromises are necessary in order to convey the central ideas to the reader. Many general references are included for those who want to learn more. The paragraphs below elaborate on the structure of these lectures. I hope this discussion will clarify my motivation and make the lectures easier to follow. The lectures begin with a brief review of more theoretical ideas. First, elements of general relativity are reviewed, concentrating on those aspects that are needed to understand compact stellar objects (white dwarf stars, neutron stars, and black holes). I then review the equations of state of these objects, concentrating on the simplest standard models from astrophysics. After these mathematical preliminaries, Sec. 2(c) discusses 'The End State of Stars'. Most of this section also uses the simplest standard models. However, as these lectures are for particle physicists, I also discuss some of the more recent approaches to the equation of state of very dense compact objects. These particle-physics-motivated equations of state can dramatically change how we view the formation of black holes. Section 3 focuses on the properties of the objects that we want to characterize and measure. X-ray binary systems and Active Galactic Nuclei (AGN) are stressed because the lectures center on understanding very dense stellar objects, black hole candidates (BHCs), and their accompanying high gravitational fields. The use of x-ray timing and gamma-ray experiments is also introduced in this section. Sections 4 and 5 review information from x-ray and gamma-ray experiments. These sections also discuss the current state of the art in x-ray and gamma-ray satellite experiments and

  10. Lessons learned from an installation perspective for chemical demilitarization plant start-up at four operating incineration sites.

    SciTech Connect (OSTI)

    Motz, L.; Decision and Information Sciences

    2011-02-21

    This study presents the lessons learned by chemical storage installations as they prepared for the start of chemical demilitarization plant operations at the four current chemical incinerator sites in Alabama, Arkansas, Oregon, and Utah. The study included interviews with persons associated with the process and collection of available documents prepared at each site. The goal was to provide useful information for the chemical weapons storage sites in Colorado and Kentucky that will be going through plant start-up in the next few years. The study is not a compendium of what to do and what not to do. The information has been categorized into ten lessons learned; each is discussed individually. Documents that may be useful to the Colorado and Kentucky sites are included in the appendices. This study should be used as a basis for planning and training.

  11. The use of dimethyl ether as a starting aid for methanol-fueled SI engines at low temperatures

    SciTech Connect (OSTI)

    Kozole, K.H.; Wallace, J.S

    1988-01-01

    Methanol-fueled SI engines have proven to be difficult to start at ambient temperatures below approximately 10/sup 0/C. The use of dimethyl ether (DME) is proposed to improve the cold starting performance of methanol-fueled SI engines. Tests to evaluate this idea were carried out with a modified single-cylinder CFR research engine having a compression ratio of 12:1. The engine was fueled with combinations of gaseous dimethyl ether and liquid methanol having DME mass fractions of 30%, 40%, 60% and 70%. For comparison, tests were also carried out with 100% methanol and with winter grade premium unleaded gasoline. Overall stoichiometric mixtures were used in all tests.

  12. Looking for project-based learning activities

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

    Looking for project-based learning activities to incorporate energy into your classroom or program? Explore these K-12 resources to get started today. The Office of Energy Efficiency and Renewable Energy (EERE) has the following featured lesson plans, labs, projects, videos and other activities for grades K-12 on energy-related topics. Download or order resources today. For a complete listing, visit energy.gov/eere/education/teach-and-learn Activity and Coloring Books The Get Current Coloring

  13. The effect of shot noise on the start up of the fundamental and harmonics in free-electron lasers

    SciTech Connect (OSTI)

    Freund, H. P.; Miner, W. H. Jr.; Giannessi, L.

    2008-12-15

    The problem of radiation start up in free-electron lasers (FELs) is important in the simulation of virtually all FEL configurations including oscillators and amplifiers in both seeded master oscillator power amplifier (MOPA) and self-amplified spontaneous emission (SASE) modes. Both oscillators and SASE FELs start up from spontaneous emission due to shot noise on the electron beam, which arises from the random fluctuations in the phase distribution of the electrons. The injected power in a MOPA is usually large enough to overwhelm the shot noise. However, this noise must be treated correctly in order to model the initial start up of the harmonics. In this paper, we discuss and compare two different shot noise models that are implemented in both one-dimensional wiggler-averaged (PERSEO) and non-wiggler-averaged (MEDUSA1D) simulation codes, and a three-dimensional non-wiggler-averaged (MEDUSA) formulation. These models are compared for examples describing both SASE and MOPA configurations in one dimension, in steady-state, and time-dependent simulations. Remarkable agreement is found between PERSEO and MEDUSA1D for the evolution of the fundamental and harmonics. In addition, three-dimensional correction factors have been included in the MEDUSA1D and PERSEO, which show reasonable agreement with MEDUSA for a sample MOPA in steady-state and time-dependent simulations.

  14. Active Interrogation for Spent Fuel

    SciTech Connect (OSTI)

    Swinhoe, Martyn Thomas; Dougan, Arden

    2015-11-05

    The DDA instrument for nuclear safeguards is a fast, non-destructive assay, active neutron interrogation technique using an external 14 MeV DT neutron generator for characterization and verification of spent nuclear fuel assemblies.

  15. Techniques for Automated Performance Analysis

    SciTech Connect (OSTI)

    Marcus, Ryan C.

    2014-09-02

    The performance of a particular HPC code depends on a multitude of variables, including compiler selection, optimization flags, OpenMP pool size, file system load, memory usage, MPI configuration, etc. As a result of this complexity, current predictive models have limited applicability, especially at scale. We present a formulation of scientific codes, nodes, and clusters that reduces complex performance analysis to well-known mathematical techniques. Building accurate predictive models and enhancing our understanding of scientific codes at scale is an important step towards exascale computing.

  16. Interval Between Hysterectomy and Start of Radiation Treatment Is Predictive of Recurrence in Patients With Endometrial Carcinoma

    SciTech Connect (OSTI)

    Cattaneo, Richard; Hanna, Rabbie K.; Jacobsen, Gordon; Elshaikh, Mohamed A.

    2014-03-15

    Purpose: Adjuvant radiation therapy (RT) has been shown to improve local control in patients with endometrial carcinoma. We analyzed the impact of the time interval between hysterectomy and RT initiation in patients with endometrial carcinoma. Methods and Materials: In this institutional review board-approved study, we identified 308 patients with endometrial carcinoma who received adjuvant RT after hysterectomy. All patients had undergone hysterectomy, oophorectomy, and pelvic and para-aortic lymph node evaluation from 1988 to 2010. Patients' demographics, pathologic features, and treatments were compared. The time interval between hysterectomy and the start of RT was calculated. The effects of time interval on recurrence-free (RFS), disease-specific (DSS), and overall survival (OS) were calculated. Following univariate analysis, multivariate modeling was performed. Results: The median age and follow-up for the study cohort was 65 years and 72 months, respectively. Eighty-five percent of the patients had endometrioid carcinoma. RT was delivered with high-dose-rate brachytherapy alone (29%), pelvic RT alone (20%), or both (51%). Median time interval to start RT was 42 days (range, 21-130 days). A total of 269 patients (74%) started their RT <9 weeks after undergoing hysterectomy (group 1) and 26% started ≥9 weeks after surgery (group 2). There were a total of 43 recurrences. Tumor recurrence was significantly associated with treatment delay of ≥9 weeks, with 5-year RFS of 90% for group 1 compared to only 39% for group 2 (P<.001). On multivariate analysis, RT delay of ≥9 weeks (P<.001), presence of lymphovascular space involvement (P=.001), and higher International Federation of Gynecology and Obstetrics grade (P=.012) were independent predictors of recurrence. In addition, RT delay of ≥9 weeks was an independent significant predictor for worse DSS and OS (P=.001 and P=.01, respectively). Conclusions: Delay in administering adjuvant RT after hysterectomy was

  17. High-Activity Dealloyed Catalysts

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

    Activity Dealloyed Catalysts 2010 DOE Hydrogen Program Fuel Cell Project Kick-Off Frederick T. Wagner General Motors Research & Development Electrochemical Energy Research Lab Honeoye Falls, NY September 28, 2010 This presentation does not contain any proprietary, confidential, or otherwise restricted information 2 * Project start date: 1 Sept 2010 * Project end date: 31 Aug 2013 * Percent complete: 0% * Barriers addressed - B. Cost * Decrease required loading of precious metals including

  18. The Development of a Robust Accelerometer-Based Start of Combustion Sensing System

    SciTech Connect (OSTI)

    Lynn Davis

    2010-03-31

    manufacturing cost of less than $5 per square foot, making it commercially attractive. To capitalize on the benefits of nanofiber technologies in solid-state lighting, several new remote phosphor reflector configurations were developed in the project. When combined with these unique lighting designs, nanofibers have a number of demonstrated benefits in lighting devices including: (1) Providing high quantum efficiency down-conversion of LED wavelengths to produce full spectrum white light; (2) Enabling tunable device structures that achieve colors ranging from warm white to cool white with high CRIs; (3) Supplying mass producible, cost-effective solutions for diffuse, high reflectance light management across the visible spectrum; (4) Facilitating remote phosphor luminaire designs that increase the lifetime and performance of luminescent materials; and (5) Providing conformability to geometries imposed by the light fixture enabling new lighting designs. This report provides a review of the activities conducted during this project and the major advances that have been made during this work in the field of nanoscale materials for solid-state lighting. Section 1 provides background on the nanofiber technologies and patent-pending luminaire structures developed during this project. Section 2 provides a detailed discussion of the benefits of the technologies developed during this work. Section 3 compares the execution of this project with the original proposal. A high level summary of the findings from each Task is also provided in the section. Section 4 lists the products (i.e., patent applications, presentations, publications, collaborations) that have been developed during this project. More details on work conducted during Budget Periods 1-3 can be found in Appendices A-C. The technologies developed during this program have significant commercial potential, and there has already been strong interest in these breakthroughs from the lighting community. It is anticipated that these

  19. Compensation Techniques in Accelerator Physics

    SciTech Connect (OSTI)

    Hisham Kamal Sayed

    2011-05-31

    Accelerator physics is one of the most diverse multidisciplinary fields of physics, wherein the dynamics of particle beams is studied. It takes more than the understanding of basic electromagnetic interactions to be able to predict the beam dynamics, and to be able to develop new techniques to produce, maintain, and deliver high quality beams for different applications. In this work, some basic theory regarding particle beam dynamics in accelerators will be presented. This basic theory, along with applying state of the art techniques in beam dynamics will be used in this dissertation to study and solve accelerator physics problems. Two problems involving compensation are studied in the context of the MEIC (Medium Energy Electron Ion Collider) project at Jefferson Laboratory. Several chromaticity (the energy dependence of the particle tune) compensation methods are evaluated numerically and deployed in a figure eight ring designed for the electrons in the collider. Furthermore, transverse coupling optics have been developed to compensate the coupling introduced by the spin rotators in the MEIC electron ring design.

  20. 2006 ALARA Activities at DOE

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

    DOE 2006 Report 4- Section Four ALARA Activities at DOE 4 ALARA Activities at DOE In past years, the published annual report has included descriptions of ALARA activities at DOE for the purposes of sharing strategies and techniques that have shown promise in the reduction of radiation exposure. For 2006, these ALARA activity descriptions have been moved to the HSS REMS Web site to facilitate the dissemination among DOE radiation protection managers and others interested in these project

  1. Repositioning of Covered Stents: The Grip Technique

    SciTech Connect (OSTI)

    Kirby, John Martin; Guo Xiaofeng; Midia, Mehran

    2011-06-15

    Introduction: Retrieval and repositioning of a stent deployed beyond its intended target region may be a difficult technical challenge. Materials and Methods: A balloon-mounted snare technique, a variant of the coaxial loop snare technique, is described. Results: The technique is described for the repositioning of a covered transjugular intrahepatic portosystemic shunt stent and a covered biliary stent. Conclusion: The balloon-mounted snare technique is a useful technique for retrieval of migrated stents.

  2. Template:ExplorationActivity | Open Energy Information

    Open Energy Info (EERE)

    The exploration technique used in this activity SpectralSensor - The spectral imaging sensor used in this activity Place - The name of the exploration field or location of the...

  3. Subranging technique using superconducting technology

    DOE Patents [OSTI]

    Gupta, Deepnarayan

    2003-01-01

    Subranging techniques using "digital SQUIDs" are used to design systems with large dynamic range, high resolution and large bandwidth. Analog-to-digital converters (ADCs) embodying the invention include a first SQUID based "coarse" resolution circuit and a second SQUID based "fine" resolution circuit to convert an analog input signal into "coarse" and "fine" digital signals for subsequent processing. In one embodiment, an ADC includes circuitry for supplying an analog input signal to an input coil having at least a first inductive section and a second inductive section. A first superconducting quantum interference device (SQUID) is coupled to the first inductive section and a second SQUID is coupled to the second inductive section. The first SQUID is designed to produce "coarse" (large amplitude, low resolution) output signals and the second SQUID is designed to produce "fine" (low amplitude, high resolution) output signals in response to the analog input signals.

  4. Black-start and restoration of a part of the Italian HV network: Modelling and simulation of a field test

    SciTech Connect (OSTI)

    Delfino, B.; Denegri, G.B.; Invernizzi, M.; Morini, A.; Bonini, E.C.; Marconato, R.; Scarpellini, P.

    1996-08-01

    ENEL (Italian Electricity Board) planned a set of operator guidelines for the restoration of parts of the national grid starting from selected hydro power plants and progressively reaching thermal units. In order to improve system restoration reliability, ENEL periodically executes field tests taking advantage of the maintenance outages of the thermal groups. The paper concerns with modelling and simulation of an experimental test performed on the Italian HV network near the French border. The study makes use of a stability code provided with user defined model facilities, enabling an accurate description of loads and regulation equipment during the restoration process.

  5. CRADA (AL-C-2009-02) Final Report: Phase I. Lanthanum-based Start Materials for Hydride Batteries

    SciTech Connect (OSTI)

    Gschneidner, Jr., Karl; Schmidt, Frederick; Frerichs, A. E.; Ament, Katherine A.

    2013-05-01

    The purpose of Phase I of this work is to focus on developing a La-based start material for making nickel-metal (lanthanum)-hydride batteries based on our carbothermic-silicon process. The goal is to develop a protocol for the manufacture of (La{sub 1-x}R{sub x})(Ni{sub 1-y}M{sub y})(Si{sub z}), where R is a rare earth metal and M is a non-rare earth metal, to be utilized as the negative electrode in nickel-metal hydride (NiMH) rechargeable batteries.

  6. Literature survey of heat transfer enhancement techniques in refrigeration applications

    SciTech Connect (OSTI)

    Jensen, M.K.; Shome, B.

    1994-05-01

    A survey has been performed of the technical and patent literature on enhanced heat transfer of refrigerants in pool boiling, forced convection evaporation, and condensation. Extensive bibliographies of the technical literature and patents are given. Many passive and active techniques were examined for pure refrigerants, refrigerant-oil mixtures, and refrigerant mixtures. The citations were categorized according to enhancement technique, heat transfer mode, and tube or shell side focus. The effects of the enhancement techniques relative to smooth and/or pure refrigerants were illustrated through the discussion of selected papers. Patented enhancement techniques also are discussed. Enhanced heat transfer has demonstrated significant improvements in performance in many refrigerant applications. However, refrigerant mixtures and refrigerant-oil mixtures have not been studied extensively; no research has been performed with enhanced refrigerant mixtures with oil. Most studies have been of the parametric type; there has been inadequate examination of the fundamental processes governing enhanced refrigerant heat transfer, but some modeling is being done and correlations developed. It is clear that an enhancement technique must be optimized for the refrigerant and operating condition. Fundamental processes governing the heat transfer must be examined if models for enhancement techniques are to be developed; these models could provide the method to optimize a surface. Refrigerant mixtures, with and without oil present, must be studied with enhancement devices; there is too little known to be able to estimate the effects of mixtures (particularly NARMs) with enhanced heat transfer. Other conclusions and recommendations are offered.

  7. Testing Oxygen Reduction Reaction Activity with the Rotating Disc Electrode

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

    Technique | Department of Energy Oxygen Reduction Reaction Activity with the Rotating Disc Electrode Technique Testing Oxygen Reduction Reaction Activity with the Rotating Disc Electrode Technique Presentation slides from the Fuel Cell Technologies Office webinar, "Testing Oxygen Reduction Reaction Activity with the Rotating Disc Electrode Technique," held March 12, 2013. Presenters were Shyam S. Kocha, National Renewable Energy Laboratory; Yannick Garsany, Naval Research

  8. Investigation of Diesel combustion using multiple injection strategies for idling after cold start of passenger-car engines

    SciTech Connect (OSTI)

    Payri, F.; Broatch, A.; Salavert, J.M.; Martin, J.

    2010-10-15

    A comprehensive investigation was carried out in order to better understand the combustion behaviour in a low compression ratio DI Diesel engine when multiple injection strategies are applied just after the engine cold starts in low temperature conditions (idling). More specifically, the aim of this study was twofold: on one hand, to understand the effect of the multiple injection strategies on the indicated mean effective pressure; on the other hand, to contribute to the understanding of combustion stability characterized by the coefficient of variation of indicated mean effective pressure. The first objective was fulfilled by analyzing the rate of heat release obtained by in-cylinder pressure diagnosis. The results showed that the timing of the pilot injection closest to the main injection was the most influential parameter based on the behaviour of the rate of heat release (regardless of the multiple injection strategy applied). For the second objective, the combustion stability was found to be correlated with the combustion centroid angle. The results showed a trend between them and the existence of a range of centroid angles where the combustion stability is strong enough. In addition, it was also evident that convenient split injection allows shifting the centroid to such a zone and improves combustion stability after start. (author)

  9. The use Na, Li, K cations for modification of ZSM-5 zewolite to control hydrocarbon cold-start emission

    SciTech Connect (OSTI)

    Golubeva V.; Rohatgi U.; Korableva, A.; Anischenko, O.; Kustov, L.; Nissenbaum, V; Viola, M.B.

    2012-08-29

    This paper addresses the problem of controlling hydrocarbon emissions from cold-start of engines by investigating the adsorbents which could adsorb the hydrocarbons at cold temperatures and hold them to 250-300 ?. The materials, that has been studied, are based on the modification of ZSM-5 (SiO{sub 2}/Al{sub 2}O{sub 3} = 35) zeolite with Li, K, Na cations. It has been shown that the introduction of Li, Na and K in an amount that is equivalent to the content of Al in zeolite results in occurrence of toluene temperature desorption peaks at high-temperatures. The toluene temperature desorption curves for 5%Li-ZSM-5 and 2.3%Na-ZSM-5 zeolites are identical and have peak toluene desorption rate between 200 to 400 ?. Upon analysis of toluene adsorption isotherms for 2.3%Na-ZSM-5 and 5%Li-ZSM-5, it was concluded that the toluene diffusion inside of the modified zeolites channels is extremely slow and the sorption capacity of 2.3%Na-ZSM-5 is higher than with 5%Li-ZSM-5. The 2.3%Na-ZSM-5 didn't change toluene temperature programmed desorption (TPD) rate of curve after the treatment in environment with 10% ?{sub 2}? at 750-800 ? for about 28 h. The 2.3%Na-ZSM-5 zeolite is very promising as adsorbent to control the cold-start hydrocarbon emissions.

  10. Synchronous motor with soft start element formed between the motor rotor and motor output shaft to successfully synchronize loads that have high inertia and/or high torque

    DOE Patents [OSTI]

    Umans, Stephen D; Nisley, Donald L; Melfi, Michael J

    2014-10-28

    A line-start synchronous motor has a housing, a rotor shaft, and an output shaft. A soft-start coupling portion is operatively coupled to the output shaft and the rotor shaft. The soft-start coupling portion is configurable to enable the synchronous motor to obtain synchronous operation and to drive, at least near synchronous speed during normal steady state operation of the motor, a load having characteristics sufficient to prevent obtaining normal synchronous operation of the motor when the motor is operatively connected to the load in the absence of the soft-start coupling. The synchronous motor is sufficiently rated to obtain synchronous operation and to drive, at least near synchronous speed during normal steady state operation of the motor, a load having characteristics sufficient to prevent obtaining normal synchronous operation of the motor when the motor is operatively connected to the load in the absence of the soft-start coupling.

  11. It Starts with Science...

    Office of Energy Efficiency and Renewable Energy (EERE)

    Secretary Chu sits down with a journalism student at Carnegie Mellon's Education City campus in Qatar to discuss the value of science in education and what attracted him to the study of Physics.

  12. It Starts with Science...

    ScienceCinema (OSTI)

    Chu, Steven

    2013-05-29

    Secretary Chu sits down with a journalism student at Carnegie Mellon's Education City campus in Qatar to discuss the value of science in education and what attracted him to the study of Physics.

  13. Planned Start July 18

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

    l Because the holder color is black, the dosimeter can reach temperatures in excess of 150 F when placed in direct sunlight in an unventilated area, such as the dashboard of a car....

  14. EERE's Usability and Analysis Techniques Guidebook

    Office of Energy Efficiency and Renewable Energy (EERE)

    For more information on the usability techniques associated with the templates, see EERE's Usability and Analysis Techniques Guidebook, which is a collection of best practices for creating and running different kinds of user-centered design projects.

  15. NREL: Measurements and Characterization - Capacitance Techniques

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

    Photoluminescence Spectroscopy Minority-Carrier Lifetime Spectroscopy Fourier-Transform Infrared & Raman Spectroscopy Spectroscopic Ellipsometry Capacitance Techniques Scanning ...

  16. Characterization of patinas by means of microscopic techniques

    SciTech Connect (OSTI)

    Vazquez-Calvo, C.

    2007-11-15

    Many stone-made historic buildings have a yellowish layer called 'patina' on their external surface. In some cases, it is due to the natural ageing of the stone caused by chemical-physical reactions between the surface of the stone and the environment, and in other cases it is the result of biological activity. The origin of these patinas can be also be due to ancient protective treatments. The use of organic additives, such as protein-based compounds, in lime or gypsum-based patinas is a traditional technique, which has been used in past centuries for the conservation and protection of stone materials. The thinness of the patinas ensures that microscopic techniques are irreplaceable for their analysis. Optical Microscopy, Fluorescence Microscopy, Scanning Electron Microscopy together with an Energy Dispersive X-ray Spectrometer, and Electron Microprobe are the microscopic techniques used for the characterization of these coverings, providing very useful information on their composition, texture and structure.

  17. Survey of data compression techniques

    SciTech Connect (OSTI)

    Gryder, R.; Hake, K.

    1991-09-01

    PM-AIM must provide to customers in a timely fashion information about Army acquisitions. This paper discusses ways that PM-AIM can reduce the volume of data that must be transmitted between sites. Although this paper primarily discusses techniques of data compression, it also briefly discusses other options for meeting the PM-AIM requirements. The options available to PM-AIM, in addition to hardware and software data compression, include less-frequent updates, distribution of partial updates, distributed data base design, and intelligent network design. Any option that enhances the performance of the PM-AIM network is worthy of consideration. The recommendations of this paper apply to the PM-AIM project in three phases: the current phase, the target phase, and the objective phase. Each recommendation will be identified as (1) appropriate for the current phase, (2) considered for implementation during the target phase, or (3) a feature that should be part of the objective phase of PM-AIM's design. The current phase includes only those measures that can be taken with the installed leased lines. The target phase includes those measures that can be taken in transferring the traffic from the leased lines to the DSNET environment with minimal changes in the current design. The objective phase includes all the things that should be done as a matter of course. The objective phase for PM-AIM appears to be a distributed data base with data for each site stored locally and all sites having access to all data.

  18. Survey of data compression techniques

    SciTech Connect (OSTI)

    Gryder, R.; Hake, K.

    1991-09-01

    PM-AIM must provide to customers in a timely fashion information about Army acquisitions. This paper discusses ways that PM-AIM can reduce the volume of data that must be transmitted between sites. Although this paper primarily discusses techniques of data compression, it also briefly discusses other options for meeting the PM-AIM requirements. The options available to PM-AIM, in addition to hardware and software data compression, include less-frequent updates, distribution of partial updates, distributed data base design, and intelligent network design. Any option that enhances the performance of the PM-AIM network is worthy of consideration. The recommendations of this paper apply to the PM-AIM project in three phases: the current phase, the target phase, and the objective phase. Each recommendation will be identified as (1) appropriate for the current phase, (2) considered for implementation during the target phase, or (3) a feature that should be part of the objective phase of PM-AIM`s design. The current phase includes only those measures that can be taken with the installed leased lines. The target phase includes those measures that can be taken in transferring the traffic from the leased lines to the DSNET environment with minimal changes in the current design. The objective phase includes all the things that should be done as a matter of course. The objective phase for PM-AIM appears to be a distributed data base with data for each site stored locally and all sites having access to all data.

  19. LOCO with Constraints and Improved Fitting Technique

    SciTech Connect (OSTI)

    Huang, Xiaobiao; Safranek, James; Portmann, Greg; /LBL, Berkeley

    2009-06-18

    } reduction, i.e., small {chi}{sup 2} reduction with large changes of {Delta}K. Under effects of random noise, the fitting solution tends to crawl toward these patterns and ends up with unrealistically large {Delta}K. Such a solution is not very useful in optics correction because after the solution is dialed in, the quadrupoles will not respond as predicted by the lattice model due to magnet hysteresis. We will show that adding constraints to the fitting parameters is an effective way to combat this problem of LOCO. In fact, it improves optics calibration precision even for machines that don't show severe degeneracy behavior. LOCO fitting is essentially to solve a nonlinear least square problem with an iterative approach. The linear least square technique is applied in each iteration to move the solution toward the minimum. This approach is commonly referred to as the Gauss-Newton method. By using singular value decomposition (SVD) to invert the Jacobian matrix, this method has generally been very successful for LOCO. However, this method is based on a linear expansion of the residual vector over the fitting parameters which is valid only when the starting solution is sufficiently close to the real minimum. The fitting algorithm can have difficulties to converge when the initial guess is too far off. For example, it's possible for the {chi}{sup 2} merit function to increase after an iteration instead of decrease. This situation can be improved by using more robust nonlinear least square fitting algorithms, such as the Levenberg-Marquardt method. We will discuss the degeneracy problem in section 2 and then show how the constrained fitting can help in section 3. The application of Levenberg-Marquadt method to LOCO is shown in section 4. A summary is given in section 5.

  20. Network Activity

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

    Statistics Network Activity Network Activity PDSF Network Uplinks to NERSC (dual 10 Gbps) NERSC Uplink to ESnet Last edited: 2011-03-31 22:20:59...

  1. Radar transponder apparatus and signal processing technique

    DOE Patents [OSTI]

    Axline, Jr., Robert M.; Sloan, George R.; Spalding, Richard E.

    1996-01-01

    An active, phase-coded, time-grating transponder and a synthetic-aperture radar (SAR) and signal processor means, in combination, allow the recognition and location of the transponder (tag) in the SAR image and allow communication of information messages from the transponder to the SAR. The SAR is an illuminating radar having special processing modifications in an image-formation processor to receive an echo from a remote transponder, after the transponder receives and retransmits the SAR illuminations, and to enhance the transponder's echo relative to surrounding ground clutter by recognizing special transponder modulations from phase-shifted from the transponder retransmissions. The remote radio-frequency tag also transmits information to the SAR through a single antenna that also serves to receive the SAR illuminations. Unique tag-modulation and SAR signal processing techniques, in combination, allow the detection and precise geographical location of the tag through the reduction of interfering signals from ground clutter, and allow communication of environmental and status information from said tag to be communicated to said SAR.

  2. Radar transponder apparatus and signal processing technique

    DOE Patents [OSTI]

    Axline, R.M. Jr.; Sloan, G.R.; Spalding, R.E.

    1996-01-23

    An active, phase-coded, time-grating transponder and a synthetic-aperture radar (SAR) and signal processor means, in combination, allow the recognition and location of the transponder (tag) in the SAR image and allow communication of information messages from the transponder to the SAR. The SAR is an illuminating radar having special processing modifications in an image-formation processor to receive an echo from a remote transponder, after the transponder receives and retransmits the SAR illuminations, and to enhance the transponder`s echo relative to surrounding ground clutter by recognizing special transponder modulations from phase-shifted from the transponder retransmissions. The remote radio-frequency tag also transmits information to the SAR through a single antenna that also serves to receive the SAR illuminations. Unique tag-modulation and SAR signal processing techniques, in combination, allow the detection and precise geographical location of the tag through the reduction of interfering signals from ground clutter, and allow communication of environmental and status information from said tag to be communicated to said SAR. 4 figs.

  3. NDA safeguards techniques for LMFBR assemblies

    SciTech Connect (OSTI)

    Persiani, P.J.; Gundy, M.L.

    1982-08-01

    The significant safeguards concerns for liquid-metal fast breeder reactors (LMFBRs), and for the LMFBR fuel handling systems are the accountability, surveillance, and identification of fuel and blanket assemblies. The introduction of fuel assemblies with a high content of Pu into the receiving and shipping areas of the LMFBR fuel cycle does allow a more direct near-real-time assay profile of the disposition of Pu. Isotope correlations and neutron assay methods have been investigated and implemented for determining plutonium and burnup in fresh and spent LMFBR fuel assemblies. The methods are based on active and passive neutron coincidence counting (NCC) techniques. Preliminary studies on neutron yield rates from the spontaneous fission of plutonium and curium isotopes have indicated that the NCC system is a most effective measure in the verification of nuclear material flow in assembly form for the entire reactor fuel handling cycle, i.e., from the fresh- to the spent-fuel stage. A consequence of the high plutonium concentration level throughout the fuel irradiation period in an LMFBR, is that the spontaneous fission neutron yield from the 242-curium and 244-curium does not dominate the spontaneous fission neutron yield from the plutonium isotopes in the spent fuel stage.

  4. Construction and start-up of a 250 kW natural gas fueled MCFC demonstration power plant

    SciTech Connect (OSTI)

    Figueroa, R.A.; Carter, J.; Rivera, R.; Otahal, J.

    1996-12-31

    San Diego Gas & Electric (SDG&E) is participating with M-C Power in the development and commercialization program of their internally manifolded heat exchanger (IMHEX{reg_sign}) carbonate fuel cell technology. Development of the IMHEX technology base on the UNOCAL test facility resulted in the demonstration of a 250 kW thermally integrated power plant located at the Naval Air Station at Miramar, California. The members of the commercialization team lead by M-C Power (MCP) include Bechtel Corporation, Stewart & Stevenson Services, Inc., and Ishikawajima-Harima Heavy Industries (IHI). MCP produced the fuel cell stack, Bechtel was responsible for the process engineering including the control system, Stewart & Stevenson was responsible for packaging the process equipment in a skid (pumps, desulfurizer, gas heater, turbo, heat exchanger and stem generator), IHI produced a compact flat plate catalytic reformer operating on natural gas, and SDG&E assumed responsibility for plant construction, start-up and operation of the plant.

  5. Outreach Activities | Department of Energy

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

    Services » Conflict Prevention and Resolution » Outreach Activities Outreach Activities The O mediation 2.jpg CPR staff engages in various outreach activities within the DOE complex and the greater federal ADR community to promote the use of alternative dispute resolution techniques. To that end, OCPR staff are members of the Interagency Alternative Dispute Resolution Working Group (IADRWG) Workplace Conflict Management Section ("Workplace Section"). This group provides guidance on

  6. EC assisted start-up experiments reproduction in FTU and AUG for simulations of the ITER case

    SciTech Connect (OSTI)

    Granucci, G.; Ricci, D.; Farina, D.; Figini, L.; Cavinato, M.; Stober, J.; Tudisco, O.

    2014-02-12

    The breakdown and plasma start-up in ITER are well known issues studied in the last few years in many tokamaks with the aid of calculation based on simplified modeling. The thickness of ITER metallic wall and the voltage limits of the Central Solenoid Power Supply strongly limit the maximum toroidal electric field achievable (0.3 V/m), well below the level used in the present generation of tokamaks. In order to have a safe and robust breakdown, the use of Electron Cyclotron Power to assist plasma formation and current rump up has been foreseen. This has raised attention on plasma formation phase in presence of EC wave, especially in order to predict the required power for a robust breakdown in ITER. Few detailed theory studies have been performed up to nowadays, due to the complexity of the problems. A simplified approach, extended from that proposed in ref[1] has been developed including a impurity multispecies distribution and an EC wave propagation and absorption based on GRAY code. This integrated model (BK0D) has been benchmarked on ohmic and EC assisted experiments on FTU and AUG, finding the key aspects for a good reproduction of data. On the basis of this, the simulation has been devoted to understand the best configuration for ITER case. The dependency of impurity distribution content and neutral gas pressure limits has been considered. As results of the analysis a reasonable amount of power (1 - 2 MW) seems to be enough to extend in a significant way the breakdown and current start up capability of ITER. The work reports the FTU data reproduction and the ITER case simulations.

  7. REE Sorption Study on sieved -50 +100 mesh fraction of Media #1 in Brine #1 with Different Starting pH's at 70C

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

    Gary Garland

    2015-09-29

    This is a continuation of the REE sorption study for shaker bath tests on 2g media #1 in 150mL brine #1 with different starting pH's at 70C. In a previous submission we reported data for shaker bath tests for brine #1 with starting pH's of 3.5, 4.5 and 5.5. In this submission we these pH's compared to starting brine #1 pH's of 6, and 7.

  8. Activation detector

    DOE Patents [OSTI]

    Bell, Zane William [Oak Ridge, TN; Boatner, Lynn Allen [Oak Ridge, TN

    2009-12-08

    A method of detecting an activator, the method including impinging with an activator a receptor material lacking a photoluminescent material and generating a by-product of a radioactive decay due to the activator impinging the reeptor material. The method further including, generating light from the by-product via the Cherenkov effect and identifying a characteristic of the activator based on the light.

  9. Activated carbon material

    DOE Patents [OSTI]

    Evans, A. Gary

    1978-01-01

    Activated carbon particles for use as iodine trapping material are impregnated with a mixture of selected iodine and potassium compounds to improve the iodine retention properties of the carbon. The I/K ratio is maintained at less than about 1 and the pH is maintained at above about 8.0. The iodine retention of activated carbon previously treated with or coimpregnated with triethylenediamine can also be improved by this technique. Suitable flame retardants can be added to raise the ignition temperature of the carbon to acceptable standards.

  10. Brawley 10MW Geothermal Plant Plant Manual for Southern California Edison Company and Union Oil Company of California: Systems Start-up and Operations, Volume II

    SciTech Connect (OSTI)

    1980-11-28

    Each system within the facility is considered from an operation viewpoint. There are five subsegments within this operation's viewpoint. Prerequisite conditions, start-up, normal operating, emergency and shutdown.

  11. Network as Discovery Instrument: A Quick-Start Guide (2013 DOE JGI Genomics of Energy and Environment 8th Annual User Meeting)

    SciTech Connect (OSTI)

    Bell, Gregory [Berkeley Lab

    2013-03-01

    Gregory Bell of Berkeley Lab on "Network as discovery instrument: a Quick-Start Guide" at the 8th Annual Genomics of Energy & Environment Meeting in Walnut Creek, Calif.

  12. Evaluation of the Start-Up Core Physics Tests at Japan's High Temperature Engineering Test Reactor (Annular Core Loadings)

    SciTech Connect (OSTI)

    John D. Bess; Nozomu Fujimoto; James W. Sterbentz; Luka Snoj; Atsushi Zukeran

    2010-03-01

    The High Temperature Engineering Test Reactor (HTTR) of the Japan Atomic Energy Agency (JAEA) is a 30 MWth, graphite-moderated, helium-cooled reactor that was constructed with the objectives to establish and upgrade the technological basis for advanced high-temperature gas-cooled reactors (HTGRs) as well as to conduct various irradiation tests for innovative high-temperature research. The core size of the HTTR represents about one-half of that of future HTGRs, and the high excess reactivity of the HTTR, necessary for compensation of temperature, xenon, and burnup effects during power operations, is similar to that of future HTGRs. During the start-up core physics tests of the HTTR, various annular cores were formed to provide experimental data for verification of design codes for future HTGRs. The Japanese government approved construction of the HTTR in the 1989 fiscal year budget; construction began at the Oarai Research and Development Center in March 1991 and was completed May 1996. Fuel loading began July 1, 1998, from the core periphery. The first criticality was attained with an annular core on November 10, 1998 at 14:18, followed by a series of start-up core physics tests until a fully-loaded core was developed on December 16, 1998. Criticality tests were carried out into January 1999. The first full power operation with an average core outlet temperature of 850ºC was completed on December 7, 2001, and operational licensing of the HTTR was approved on March 6, 2002. The HTTR attained high temperature operation at 950 ºC in April 19, 2004. After a series of safety demonstration tests, it will be used as the heat source in a hydrogen production system by 2015. Hot zero-power critical, rise-to-power, irradiation, and safety demonstration testing , have also been performed with the HTTR, representing additional means for computational validation efforts. Power tests were performed in steps from 0 to 30 MW, with various tests performed at each step to confirm

  13. Hybrid Technique in SCALE for Fission Source Convergence Applied to Used Nuclear Fuel Analysis

    SciTech Connect (OSTI)

    Ibrahim, Ahmad M; Peplow, Douglas E.; Bekar, Kursat B; Celik, Cihangir; Scaglione, John M; Ilas, Dan; Wagner, John C

    2013-01-01

    The new hybrid SOURCE ConveRgence accelERator (SOURCERER) sequence in SCALE deterministically computes a fission distribution and uses it as the starting source in a Monte Carlo eigenvalue criticality calculation. In addition to taking the guesswork out of defining an appropriate, problem-dependent starting source, the more accurate starting source provided by the deterministic calculation decreases the probability of producing inaccurate tally estimates associated with undersampling problems caused by inadequate source convergence. Furthermore, SOURCERER can increase the efficiency of the overall simulation by decreasing the number of cycles that has to be skipped before the keff accumulation. SOURCERER was applied to a representative example for a used nuclear fuel cask utilized at the Maine Yankee storage site {Scaglione and Ilas}. Because of the time constraints of the Used Fuel Research, Development, and Demonstration project, it was found that using more than 30,000 neutrons per cycle will lead to inaccurate Monte Carlo calculation of keff due to the inevitable decrease in the number of skipped and active cycles used with this problem. For a fixed uncertainty objective and by using 30,000 neutron per cycle, the use of SOURCERER increased the efficiency of the keff calculation by 60%compared to a Monte Carlo calculation that used a starting source distributed uniformly in fissionable regions, even with the inclusion of the extra computational time required by the deterministic calculation. Additionally, the use of SOURCERER increased the reliability of keff calculation using any number of skipped cycles below 350.

  14. Argonne National Laboratory Scientists Invent Breakthrough Technique...

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

    Bahns and Argonne scientist Liaohai Chen had been investigating carbon in soil using a laser-based technique called Raman spectroscopy. They added gold nanoparticles to their ...

  15. Accelerated Technique for Carbon Mesoporous Materials - Energy...

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

    Advanced Materials Find More Like This Return to Search Accelerated Technique for Carbon Mesoporous Materials Oak Ridge National Laboratory Contact ORNL About This Technology...

  16. Airborne electromagnetic surveys as a reconnaissance technique...

    Open Energy Info (EERE)

    it was thought that a shallow exploration technique would not be effective. Extensive audio-magnetotelluric (AMT) work by the USGS in KGRA's showed that many geothermal systems...

  17. Transportation Techniques LLC | Open Energy Information

    Open Energy Info (EERE)

    Techniques LLC Place: Denver, CO, Colorado Zip: 80205 Sector: Vehicles Product: Colorado-USA-based company that uses patented series hybrid technology to design and develop hybrid...

  18. Category:Data Techniques | Open Energy Information

    Open Energy Info (EERE)

    1 pages G Geographic Information System 1 pages Geothermal Literature Review 1 pages Pages in category "Data Techniques" The following 4 pages are in...

  19. EERE's Usability and Analysis Techniques Guidebook | Department...

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

    see EERE's Usability and Analysis Techniques Guidebook, which is a collection of best practices for creating and running different kinds of user-centered design projects. ...

  20. Tomographic inversion techniques incorporating physical constraints...

    Office of Scientific and Technical Information (OSTI)

    In the case of low signal levels or partial spatial coverage of the plasma cross-section, standard inversion techniques utilizing matrix inversion and linear-regularization often ...

  1. Promising technique improves hydrogen production of affordable...

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

    (Materialscientist, Wikipedia) (click image to enlarge) Promising technique improves hydrogen production of affordable alternative to platinum By Angela Hardin * October 26, 2015...

  2. Comparison of 17 Ice Nucleation Measurement Techniques

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

    17 Ice Nucleation Measurement Techniques for Immersion Freezing For original submission and image(s), see ARM Research Highlights http:www.arm.govsciencehighlights Research...

  3. Footprinting Technique Gives ALS Users New Insights

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

    left: Research Scientist Sayan Gupta, Beamline 5.3.1 Scientist Rich Celestre, and BCSB Head Corie Ralston. XFP, a powerful technique for the study of macromolecular structures...

  4. Category:Electromagnetic Techniques | Open Energy Information

    Open Energy Info (EERE)

    3 subcategories, out of 3 total. A Airborne Electromagnetic Survey 1 pages G + Ground Electromagnetic Techniques (2 categories) 3 pages S Self Potential...

  5. Lightweight and Statistical Techniques for Petascale Debugging...

    Office of Scientific and Technical Information (OSTI)

    ... years of CoPS research, significant work remains. While STAT provides scalable debugging assistance for incorrect application runs, we could apply its techniques to assertions ...

  6. Innovative Exploration Techniques for Geothermal Assessment at...

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

    Innovative Exploration Techniques for Geothermal Assessment at Jemez Pueblo, New Mexico ... geothermal exploration project in New Mexico since Fenton Hill at nearby Valles caldera. ...

  7. Eddy current technique for predicting burst pressure

    DOE Patents [OSTI]

    Petri, Mark C.; Kupperman, David S.; Morman, James A.; Reifman, Jaques; Wei, Thomas Y. C.

    2003-01-01

    A signal processing technique which correlates eddy current inspection data from a tube having a critical tubing defect with a range of predicted burst pressures for the tube is provided. The method can directly correlate the raw eddy current inspection data representing the critical tubing defect with the range of burst pressures using a regression technique, preferably an artificial neural network. Alternatively, the technique deconvolves the raw eddy current inspection data into a set of undistorted signals, each of which represents a separate defect of the tube. The undistorted defect signal which represents the critical tubing defect is related to a range of burst pressures utilizing a regression technique.

  8. Photons, Electrons and Positrons Transport in 3D by Monte Carlo Techniques

    Energy Science and Technology Software Center (OSTI)

    2014-12-01

    Version 04 FOTELP-2014 is a new compact general purpose version of the previous FOTELP-2K6 code designed to simulate the transport of photons, electrons and positrons through three-dimensional material and sources geometry by Monte Carlo techniques, using subroutine package PENGEOM from the PENELOPE code under Linux-based and Windows OS. This new version includes routine ELMAG for electron and positron transport simulation in electric and magnetic fields, RESUME option and routine TIMER for obtaining starting random numbermore » and for measuring the time of simulation.« less

  9. A synthesis of LiFePO{sub 4} starting from FePO{sub 4} under reducing atmosphere

    SciTech Connect (OSTI)

    Prosini, Pier Paolo; Cento, Cinzia; Masci, Amedeo; Carewska, Maria; Gislon, Paola

    2014-06-19

    A fast and easy way to produce LiFePO{sub 4} starting from FePO{sub 4}, used as iron and phosphorus source, is proposed. 5% hydrogen is employed as a reducing agent and various compounds containing lithium as lithiation agents. The selected lithiation agents included: LiCl, CH{sub 3}COOLi, LiOH, Li{sub 2}S, LiH, and Li{sub 2}CO{sub 3}. Solid state synthesis is used for the LiFePO{sub 4} preparation and the so obtained materials are structurally characterized by XRD. The materials are used to fabricate composite electrode and their specific capacity is evaluated by low rate galvanostatic charge/discharge cycles (C/10 rate). Among the various lithium salts, the acetate give rise to the LiFePO{sub 4} with the best electrochemical performance. The morphology of this material is further investigated by SEM microscopy and the specific capacity is evaluated as a function of the discharge rate and the cycle number.

  10. Geothermal activities in Central America

    SciTech Connect (OSTI)

    Whetten, J.T.; Hanold, R.J.

    1985-09-11

    The Agency for International Development is funding a new program in energy and minerals for Central America. Geothermal energy is an important component. A country-wide geothermal assessment has started in Honduras, and other assessment activities are in progress or planned for Costa Rica, El Salvador, Guatemala, and Panama. Instrumentation for well logging has been provided to Costa Rica, and a self-contained logging truck will be made available for use throughout Central America. An important objective of this program is to involve the private sector in resource development. 4 refs., 3 figs.

  11. Opto-electrokinetic manipulation technique for highperformance

    SciTech Connect (OSTI)

    Kwon, Jae-Sung [Purdue University; Ravindranath, Sandeep [Purdue University; Kumar, Aloke [ORNL; Irudayaraj, Joseph [Purdue University; Wereley, Steven T. [Purdue University

    2012-01-01

    This communication first demonstrates bio-compatibility of a recently developed opto-electrokinetic manipulation technique, using microorganisms. Aggregation, patterning, translation, trapping and size-based separation of microorganisms performed with the technique firmly establishes its usefulness for development of a high-performance on-chip bioassay system.

  12. Ion beam analysis techniques in interdisciplinary applications

    SciTech Connect (OSTI)

    Respaldiza, Miguel A.; Ager, Francisco J.

    1999-11-16

    The ion beam analysis techniques emerge in the last years as one of the main applications of electrostatic accelerators. A short summary of the most used IBA techniques will be given as well as some examples of applications in interdisciplinary sciences.

  13. Laser sources and techniques for spectroscopy and dynamics

    SciTech Connect (OSTI)

    Kung, A.H.

    1993-12-01

    This program focuses on the development of novel laser and spectroscopic techniques in the IR, UV, and VUV regions for studying combustion related molecular dynamics at the microscopic level. Laser spectroscopic techniques have proven to be extremely powerful in the investigation of molecular processes which require very high sensitivity and selectivity. The authors approach is to use quantum electronic and non-linear optical techniques to extend the spectral coverage and to enhance the optical power of ultrahigh resolution laser sources so as to obtain and analyze photoionization, fluorescence, and photoelectron spectra of jet-cooled free radicals and of reaction products resulting from unimolecular and bimolecular dissociations. New spectroscopic techniques are developed with these sources for the detection of optically thin and often short-lived species. Recent activities center on regenerative amplification of high resolution solid-state lasers, development of tunable high power mid-IR lasers and short-pulse UV/VUV tunable lasers, and development of a multipurpose high-order suppressor crossed molecular beam apparatus for use with synchrotron radiation sources. This program also provides scientific and technical support within the Chemical Sciences Division to the development of LBL`s Combustion Dynamics Initiative.

  14. The Navajo scrubber project -- Start up and performance testing of the largest FGD system in the USA

    SciTech Connect (OSTI)

    Lusko, J.; Massion, R.; Sekhar, N.

    1998-07-01

    The Navajo Scrubber Project located in Page, Arizona is the largest Flue Gas Desulfurization (FGD) system in the USA. Limestone based FGD system producing disposable grade gypsum is being installed on Units 1,2 and 3 (3 x 750 MWe) at the Navajo Generating Station (NGS) to comply with an EPA ruling mandating SO{sub 2} emission reduction to improve visibility in the Grand Canyon National Park. Compliance will be phased-in by unit in 1997, 1998 and 1999. The NGS burns low-sulfur coal with a sulfur content of approximately 0.5%. The FGD system is designed to treat a total flue gas flow of 11.25 million acfm, at an SO{sub 2} removal efficiency of 92% for an emission of 0.1 lb. per million BTU. Unique features of the FGD system include, a totally closed loop water balance system, 775 ft. chimney with C-276 alloy clad designed to handle both wet and hot dry gas, solid C-276 alloy absorber vessels and the use of existing ID fans, with suitable modification, to overcome the additional pressure drop of the FGD system. The start-up sequence/operation and performance tests of Unit 3 of this unique FGD system is described in this paper. Performance tests include, removal efficiency determination at 0.6 and 0.8% sulfur coal at normal and 60,000 PPM chloride in the slurry, particulate carry over determination under normal as well as upset ESP conditions, and determination of mist eliminator carry-over using Video Droplet Analyzer.

  15. Engine control techniques to account for fuel effects (Patent...

    Office of Scientific and Technical Information (OSTI)

    Patent: Engine control techniques to account for fuel effects Citation Details In-Document Search Title: Engine control techniques to account for fuel effects A technique for ...

  16. PFT Air Infiltration Measurement Technique | Department of Energy

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

    Infiltration Measurement Technique PFT Air Infiltration Measurement Technique The Brookhaven National Laboratory developed the PFT (PerFluorocarbon tracer gas) technique to...

  17. Superhydrophobic Materials Technology-PVC Bonding Techniques

    SciTech Connect (OSTI)

    Hunter, Scott R.; Efird, Marty

    2013-05-03

    The purpose of the technology maturation project was to develop an enhanced application technique for applying diatomaceous earth with pinned polysiloxane oil to PVC pipes and materials. The oil infiltration technique is applied as a spray of diluted oil in a solvent onto the superhydrophobic diatomaceous earth substrate. This makes the surface take on the following characteristics: wet-cleanable; anti-biofouling; waterproof; and anti-corrosion. The project involved obtaining input and supplies from VeloxFlow and the development of successful techniques that would quickly result in a commercial license agreement with VeloxFlow and other companies that use PVC materials in a variety of other fields of use.

  18. Webinar: Testing Oxygen Reduction Reaction Activity with the...

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

    Webinar: Testing Oxygen Reduction Reaction Activity with the Rotating Disc Electrode Technique Above is the video recording for the webinar, "Testing Oxygen Reduction Reaction ...

  19. EA-1692: Red River Environmental Products, LLC Activated Carbon

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

    Manufacturing Facility, Red River Parish, LA | Department of Energy 2: Red River Environmental Products, LLC Activated Carbon Manufacturing Facility, Red River Parish, LA EA-1692: Red River Environmental Products, LLC Activated Carbon Manufacturing Facility, Red River Parish, LA June 1, 2010 EA-1692: Final Environmental Assessment Construction and Start-Up of an Activated Carbon Manufacturing Facility in Red River Parish, Louisiana June 11, 2010 EA-1692: Finding of No Significant Impact Red

  20. HGP-A Wellhead Generator, Proof-Of-Feasibility Project 3 MW Wellhead Generator, Start-Up Training and Operating Manual

    SciTech Connect (OSTI)

    1981-01-01

    The start-up manual is an information aid to initially familiarize plant operators with the plant operation and later be used as a reference manual while operating the plant. This start-up manual is supplemented by the Plant Data Manual which contains a detailed description of the philosophy of operation and equipment characteristics. The sequencing herein presents the necessary operating procedures which must be followed in order that a smooth start-up is obtained. The sequence includes, first conditioning the well and stabilizing the steam/water separations, and then bringing the operating machinery on line. The Piping and Instrumentation Diagrams and Electrical Drawings are included under Section 12.0 and are frequently referred to in the text. Information for ''trouble-shooting'' is provided in the maintenance and operations manuals on all the equipment.

  1. Neutron activation analysis and gamma ray spectrometry

    SciTech Connect (OSTI)

    Lyon, W.S. . Analytical Chemistry Div.)

    1989-11-01

    The authors present scientometric study of the citations and publication data. It shows the present state of neutron activation analysis (NAA) and applied nuclear chemistry as compared to other analytical techniques.

  2. Category:Field Techniques | Open Energy Information

    Open Energy Info (EERE)

    Sampling Field Techniques H Hand-held X-Ray Fluorescence (XRF) P Portable X-Ray Diffraction (XRD) Retrieved from "http:en.openei.orgwindex.php?titleCategory:FieldTechniq...

  3. A Survey of Techniques for Approximate Computing

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

    Mittal, Sparsh

    2016-03-18

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

  4. Techniques for preventing accidental damage to pipelines

    SciTech Connect (OSTI)

    Lothon, A.; Akel, S.

    1996-12-31

    Following a survey of all of the techniques capable of preventing third-party damage to its gas transmission pipelines, Gaz de France has selected two of them, Electromagnetic Detection and Positioning by Satellite. The first technique is based on detection of the magnetic field existing around transmission pipes excited by a driving current. A receiver is mounted on the excavation equipment to detect the magnetic field, thereby preventing any risk of hitting the pipe. The second technique consists in locating excavators by satellite. Each excavator needs to be equipped with a GPS beacon to know its position. Using the map of the transmission network stored in data-base form, i.e., digitized, the system calculates the position of the excavator relative to the pipes buried in its vicinity so as to avoid any accidental contact. The main features, advantages and drawbacks of the two techniques are presented in this paper.

  5. Internal Benchmarking Outreach and Data Collection Techniques

    Broader source: Energy.gov [DOE]

    U.S. Department of Energy (DOE) Technical Assistance Program (TAP) presentation at a TAP webinar held on April 11, 2013 and dealing with internal benchmarking outreach and data collection techniques.

  6. Data Capture Technique for High Speed Signaling

    DOE Patents [OSTI]

    Barrett, Wayne Melvin; Chen, Dong; Coteus, Paul William; Gara, Alan Gene; Jackson, Rory; Kopcsay, Gerard Vincent; Nathanson, Ben Jesse; Vranas, Paylos Michael; Takken, Todd E.

    2008-08-26

    A data capture technique for high speed signaling to allow for optimal sampling of an asynchronous data stream. This technique allows for extremely high data rates and does not require that a clock be sent with the data as is done in source synchronous systems. The present invention also provides a hardware mechanism for automatically adjusting transmission delays for optimal two-bit simultaneous bi-directional (SiBiDi) signaling.

  7. Microcrystallization techniques for serial femtosecond crystallography

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

    using Photosystem II from Thermosynechococcus elongatus as a model system Microcrystallization techniques for serial femtosecond crystallography using Photosystem II from Thermosynechococcus elongatus as a model system Authors: Kupitz, C., Grotjohann, I., Conrad, C.E., Roy-Chowdhury, S., Fromme, R., and Fromme, P. Title: Microcrystallization techniques for serial femtosecond crystallography using Photosystem II from Thermosynechococcus elongatus as a model system Source: Phil. Trans. R. Soc.

  8. Techniques for Bs Mixing at CDF

    SciTech Connect (OSTI)

    Salamanna, Giuseppe; /Rome U. /INFN, Rome

    2005-12-01

    The techniques used to perform a measurement of the mixing frequency of the B{sub s} meson ({Delta}M{sub s}) with the CDF detector at the TeVatron collider are described. Particular stress is put on CDF techniques for flavor tagging, which is possibly the major issue for mixing measurements at a hadron collider. Also CDF performances on lifetime and final state reconstruction are described. The final result of the amplitude scanning presented at 2005 Winter Conferences is reported.

  9. New technique images nanoparticles in solution

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

    technique images nanoparticles in solution Click to share on Facebook (Opens in new window) Click to share on Twitter (Opens in new window) Click to share on Reddit (Opens in new window) Click to share on Pinterest (Opens in new window) A technique called SINGLE uses in situ transmission electron microscopy imaging of platinum nanocrystals freely rotating in a graphene liquid cell to determine the 3-D structures of individual colloidal nanoparticles. (Image: Berkeley Lab) More » Nanotubes that

  10. Lidar techniques for search and rescue

    SciTech Connect (OSTI)

    Cabral, W.L.

    1985-01-01

    Four techniques for using LIDAR in Search and Rescue Operations will be discussed. The topic will include laser retroreflection, laser-induced fluorescence in the visible, laser-induced fluorescence during daylight hours, and laser-induced fluorescence in the uv. These techniques use high-repetition rate lasers at a variety of frequencies to induce either fluorescence in dye markers or retroreflection from plastic corner cubes on life preservers and other emergency markers.

  11. Neutron capture strategy and technique developments for GNEP

    SciTech Connect (OSTI)

    Couture, Aaron Joseph

    2008-01-01

    The initial three years of neutron capture measurements have been very successful in providing data for the Advanced Fuel Cycle Initiative/Global Nuclear Energy Partnership (AFCI/GNEP) program. Now that the most straightforward measurements have been completed, additional technical challenges face future measurements. In particular, techniques are needed to perform measurements that exhibit at least one of three major problems -- large fission:capture ratios, large capture:capture ratios, and high intrinsic activity samples. This paper will set forward a plan for attacking these technical challenges and moving forward with future measurements.

  12. Method for automatically evaluating a transition from a batch manufacturing technique to a lean manufacturing technique

    DOE Patents [OSTI]

    Ivezic, Nenad; Potok, Thomas E.

    2003-09-30

    A method for automatically evaluating a manufacturing technique comprises the steps of: receiving from a user manufacturing process step parameters characterizing a manufacturing process; accepting from the user a selection for an analysis of a particular lean manufacturing technique; automatically compiling process step data for each process step in the manufacturing process; automatically calculating process metrics from a summation of the compiled process step data for each process step; and, presenting the automatically calculated process metrics to the user. A method for evaluating a transition from a batch manufacturing technique to a lean manufacturing technique can comprise the steps of: collecting manufacturing process step characterization parameters; selecting a lean manufacturing technique for analysis; communicating the selected lean manufacturing technique and the manufacturing process step characterization parameters to an automatic manufacturing technique evaluation engine having a mathematical model for generating manufacturing technique evaluation data; and, using the lean manufacturing technique evaluation data to determine whether to transition from an existing manufacturing technique to the selected lean manufacturing technique.

  13. Fuel Safety Activities in Korea

    SciTech Connect (OSTI)

    Auh, Geun-Sun; Shin, A.D.; Lee, J.S.; Woo, S.W.; Ryu, Y.H.; Kim, Jun-Hwan; Kim, S.K.; Jeong, Y.H.

    2007-07-01

    The current regulatory requirements for fuel performance were based on earlier test data of fresh or low burnup Zircaloy fuels of less than 40 GWD/MTU. Most countries have not changed the current regulatory requirements even if they are actively investigating the high burnup and new cladding alloy effects. Korea agrees with commonly accepted international consensus that although there are technical issues requiring resolutions, these issues do not constitute immediate safety concerns. The high burnup fuel reactor performance experiences of Korea do not show any major problems even if there have been some burnup related fuel failures which are described in the paper. KINS has recommended the industry to have lower fuel failure rates than 1-2 per 50,000 fuel rods. A research project of High Burnup Fuel Safety Tests and Evaluations has started in 2002 under a joint cooperation of KAERI/KNFC/KEPRI and KINS to obtain performance results of high burnup fuel and to develop evaluation technologies of high burnup fuel safety issues. From 1998, KINS has closely monitored and actively participated in international activities such as OECD/NEA CABRI Water Loop Program to reflect on regulatory requirements if needed. KINS will closely monitor the high burnup fuel performances of Korea to strength the regulatory activities if needed. The research activities in Korea including of LOCA and RIA being performed at KAERI with active supports of the industry are summarized in the paper. (authors)

  14. Macroeconomic Activity Module - NEMS Documentation

    Reports and Publications (EIA)

    2016-01-01

    Documents the objectives, analytical approach, and development of the National Energy Modeling System (NEMS) Macroeconomic Activity Module (MAM) used to develop the Annual Energy Outlook for 2016 (AEO2016). The report catalogues and describes the module assumptions, computations, methodology, parameter estimation techniques, and mainframe source code

  15. Macroeconomic Activity Module - NEMS Documentation

    Reports and Publications (EIA)

    2014-01-01

    Documents the objectives, analytical approach, and development of the National Energy Modeling System (NEMS) Macroeconomic Activity Module (MAM) used to develop the Annual Energy Outlook for 2014 (AEO2014). The report catalogues and describes the module assumptions, computations, methodology, parameter estimation techniques, and mainframe source code

  16. Catalyst activator

    DOE Patents [OSTI]

    McAdon, Mark H.; Nickias, Peter N.; Marks, Tobin J.; Schwartz, David J.

    2001-01-01

    A catalyst activator particularly adapted for use in the activation of metal complexes of metals of Group 3-10 for polymerization of ethylenically unsaturated polymerizable monomers, especially olefins, comprising two Group 13 metal or metalloid atoms and a ligand structure including at least one bridging group connecting ligands on the two Group 13 metal or metalloid atoms.

  17. Conceptual Ideas for New Nondestructive UF6 Cylinder Assay Techniques

    SciTech Connect (OSTI)

    Miller, Karen A.

    2012-05-02

    Nondestructive assay (NDA) measurements of uranium cylinders play an important role in helping the International Atomic Energy Agency (IAEA) safeguard uranium enrichment plants. Traditionally, these measurements have consisted of a scale or load cell to determine the mass of UF{sub 6} in the cylinder combined with a gamma-ray measurement of the 186 keV peak from {sup 235}U to determine enrichment. More recently, Los Alamos National Laboratory (LANL) and Pacific Northwest National Laboratory (PNNL) have developed systems that exploit the passive neutron signal from UF{sub 6} to determine uranium mass and/or enrichment. These include the Uranium Cylinder Assay System (UCAS), the Passive Neutron Enrichment Meter (PNEM), and the Hybrid Enrichment Verification Array (HEVA). The purpose of this report is to provide the IAEA with new ideas on technologies that may or may not be under active development but could be useful for UF{sub 6} cylinder assay. To begin, we have included two feasibility studies of active interrogation techniques. There is a long history of active interrogation in the field of nuclear safeguards, especially for uranium assay. Both of the active techniques provide a direct measure of {sup 235}U content. The first is an active neutron method based on the existing PNEM design that uses a correlated {sup 252}Cf interrogation source. This technique shows great promise for UF{sub 6} cylinder assay and is based on advanced technology that could be implemented in the field in the near term. The second active technique is nuclear resonance fluorescence (NRF). In the NRF technique, a bremsstrahlung photon beam could be used to illuminate the cylinder, and high-resolution gamma-ray detectors would detect the characteristic de-excitation photons. The results of the feasibility study show that under certain measurement geometries, NRF is impractical for UF6 cylinder assay, but the 'grazing transmission' and 'secant transmission' geometries have more potential

  18. Reuse of activated alumina

    SciTech Connect (OSTI)

    Hobensack, J.E.

    1991-12-31

    Activated alumina is used as a trapping media to remove trace quantities of UF{sub 6} from process vent streams. The current uranium recovery method employs concentrated nitric acid which destroys the alumina pellets and forms a sludge which is a storage and disposal problem. A recently developed technique using a distilled water rinse followed by three dilute acid rinses removes on average 97% of the uranium, and leaves the pellets intact with crush strength and surface area values comparable with new material. Trapping tests confirm the effectiveness of the recycled alumina as UF{sub 6} trapping media.

  19. Microcurrent therapeutic technique for treatment of radiation toxicity

    DOE Patents [OSTI]

    Lennox, Arlene; Funder, Sandra

    2000-01-01

    The present technique provides a method of remediating the toxicities associated with radiation therapy. A conductive gel is applied to the affected bodily area. A sinusoidally pulsed biphasic DC current is then applied to the affected bodily area using at least one electrode. The electrode is manipulated using active tactile manipulation by for a predetermined time and the frequency of the sinusoidally pulsed biphasic DC current is decreased during the course of the treatment. The method also includes applying a spiked pulsed biphasic DC current to the affected bodily area using at least one electrode. This electrode is also manipulated using active tactile manipulation by for a predetermined time and the frequency of the spiked pulsed biphasic DC current is also decreased during the course of the treatment.

  20. New International Program to Asses the Reliability of Emerging Nondestructive Techniques (PARENT)

    SciTech Connect (OSTI)

    Prokofiev, Iouri; Cumblidge, Stephen E.; Csontos, Aladar A.; Braatz, Brett G.; Doctor, Steven R.

    2013-01-25

    The Nuclear Regulatory Commission (NRC) established the Program to Assess the Reliability of Emerging Nondestructive Techniques (PARENT) to follow on from the successful Program for the Inspection of Nickel alloy Components (PINC). The goal of the PARENT is to conduct a confirmatory assessment of the reliability of nondestructive evaluation (NDE) techniques for detecting and sizing primary water stress corrosion cracks (PWSCC) and applying the lessons learned from PINC to a series of round-robin tests. These open and blind round-robin tests will comprise a new set of typical pressure boundary components including dissimilar metal welds (DMWs) and bottom-mounted instrumentation penetrations. Open round-robin tests will engage research and industry teams worldwide to investigate and demonstrate the reliability of emerging NDE techniques to detect and size flaws with a wide range of lengths, depths, orientations, and locations. Blind round-robin tests will utilize various testing organizations, whose inspectors and procedures are certified by the standards for the nuclear industry in their respective countries, to investigate the ability of established NDE techniques to detect and size flaws whose characteristics range from relatively easy to very difficult for detection and sizing. Blind and open round-robin testing started in late 2011 and early 2012, respectively. This paper will present the work scope with reports on progress, NDE methods evaluated, and project timeline for PARENT.

  1. Node Augmentation Technique in Bayesian Network Evidence Analysis and Marshaling

    SciTech Connect (OSTI)

    Keselman, Dmitry; Tompkins, George H; Leishman, Deborah A

    2010-01-01

    Given a Bayesian network, sensitivity analysis is an important activity. This paper begins by describing a network augmentation technique which can simplifY the analysis. Next, we present two techniques which allow the user to determination the probability distribution of a hypothesis node under conditions of uncertain evidence; i.e. the state of an evidence node or nodes is described by a user specified probability distribution. Finally, we conclude with a discussion of three criteria for ranking evidence nodes based on their influence on a hypothesis node. All of these techniques have been used in conjunction with a commercial software package. A Bayesian network based on a directed acyclic graph (DAG) G is a graphical representation of a system of random variables that satisfies the following Markov property: any node (random variable) is independent of its non-descendants given the state of all its parents (Neapolitan, 2004). For simplicities sake, we consider only discrete variables with a finite number of states, though most of the conclusions may be generalized.

  2. Coscheduling Technique for Symmetric Multiprocessor Clusters

    SciTech Connect (OSTI)

    Yoo, A B; Jette, M A

    2000-09-18

    Coscheduling is essential for obtaining good performance in a time-shared symmetric multiprocessor (SMP) cluster environment. However, the most common technique, gang scheduling, has limitations such as poor scalability and vulnerability to faults mainly due to explicit synchronization between its components. A decentralized approach called dynamic coscheduling (DCS) has been shown to be effective for network of workstations (NOW), but this technique is not suitable for the workloads on a very large SMP-cluster with thousands of processors. Furthermore, its implementation can be prohibitively expensive for such a large-scale machine. IN this paper, they propose a novel coscheduling technique based on the DCS approach which can achieve coscheduling on very large SMP-clusters in a scalable, efficient, and cost-effective way. In the proposed technique, each local scheduler achieves coscheduling based upon message traffic between the components of parallel jobs. Message trapping is carried out at the user-level, eliminating the need for unsupported hardware or device-level programming. A sending process attaches its status to outgoing messages so local schedulers on remote nodes can make more intelligent scheduling decisions. Once scheduled, processes are guaranteed some minimum period of time to execute. This provides an opportunity to synchronize the parallel job's components across all nodes and achieve good program performance. The results from a performance study reveal that the proposed technique is a promising approach that can reduce response time significantly over uncoordinated time-sharing and batch scheduling.

  3. Review of air flow measurement techniques

    SciTech Connect (OSTI)

    McWilliams, Jennifer

    2002-12-01

    Airflow measurement techniques are necessary to determine the most basic of indoor air quality questions: ''Is there enough fresh air to provide a healthy environment for the occupants of the building?'' This paper outlines airflow measurement techniques, but it does not make recommendations for techniques that should be used. The airflows that will be discussed are those within a room or zone, those between rooms or zones, such as through doorways (open or closed) or passive vents, those between the building and outdoors, and those through mechanical air distribution systems. Techniques that are highlighted include particle streak velocimetry, hot wire anemometry, fan pressurization (measuring flow at a given pressure), tracer gas, acoustic methods for leak size determination, the Delta Q test to determine duct leakage flows, and flow hood measurements. Because tracer gas techniques are widely used to measure airflow, this topic is broken down into sections as follows: decay, pulse injection, constant injection, constant concentration, passive sampling, and single and multiple gas measurements for multiple zones.

  4. Micro-fabrication Techniques for Target Components

    SciTech Connect (OSTI)

    Miles, R; Hamilton, J; Crawford, J; Ratti, S; Trevino, J; Graff, T; Stockton, C; Harvey, C

    2008-06-10

    Micro-fabrication techniques, derived from the semi-conductor industry, can be used to make a variety of useful mechanical components for targets. A selection of these components including supporting cooling arms for prototype cryogenic inertial confinement fusion targets, stepped and graded density targets for materials dynamics experiments are described. Micro-fabrication enables cost-effective, simultaneous fabrication of multiple high-precision components with complex geometries. Micro-fabrication techniques such as thin-film deposition, photo-lithographic patterning and etch processes normally used in the semi-conductor manufacture industry, can be exploited to make useful mechanical target components. Micro-fabrication processes have in recent years been used to create a number of micro-electro-mechanical systems (MEMS) components such as pressure sensors, accelerometers, ink jet printer heads, microfluidics platforms and the like. These techniques consist primarily of deposition of thin films of material, photo-lithographic patterning and etching processes performed sequentially to produce three dimensional structures using essentially planar processes. While the planar technology can be limiting in terms of the possible geometries of the final product, advantages of using these techniques include the ability to make multiple complex structures simultaneously and cost-effectively. Target components fabricated using these techniques include the supporting cooling arms for cryogenic prototype fusion ignition targets, stepped targets for equation-of-state experiments, and graded density reservoirs for material strength experiments.

  5. Effect of starting microstructure upon the nucleation sites and distribution of graphite particles during a graphitising anneal of an experimental medium-carbon machining steel

    SciTech Connect (OSTI)

    Inam, A. Brydson, R. Edmonds, D.V.

    2015-08-15

    The potential for using graphite particles as an internal lubricant during machining is considered. Graphite particles were found to form during graphitisation of experimental medium-carbon steel alloyed with Si and Al. The graphite nucleation sites were strongly influenced by the starting microstructure, whether ferrite–pearlite, bainite or martensite, as revealed by light and electron microscopy. Favourable nucleation sites in the ferrite–pearlite starting microstructure were, not unexpectedly, found to be located within pearlite colonies, no doubt due to the presence of abundant cementite as a source of carbon. In consequence, the final distribution of graphite nodules in ferrite–pearlite microstructures was less uniform than for the bainite microstructure studied. In the case of martensite, this study found a predominance of nucleation at grain boundaries, again leading to less uniform graphite dispersions. - Highlights: • Metallography of formation of graphite particles in experimental carbon steel. • Potential for using graphite in steel as an internal lubricant during machining. • Microstructure features expected to influence improved machinability studied. • Influence of pre-anneal starting microstructure on graphite nucleation sites. • Influence of pre-anneal starting microstructure on graphite distribution. • Potential benefit is new free-cutting steel compositions without e.g. Pb alloying.

  6. REE Sorption Study of Sieved -50 +100 mesh Media #1 in Brine #1 with Different Starting pH's at 70C

    SciTech Connect (OSTI)

    Gary Garland

    2015-07-21

    This dataset described shaker table experiments ran with sieved -50 +100 mesh media #1 in brine #1 that have 2ppm each of the 7 REE metals at different starting pH's of 3.5, 4.5, and 5.5. The experimental conditions are 2g media to 150mL of REE solution, at 70C.

  7. Cache Energy Optimization Techniques For Modern Processors

    SciTech Connect (OSTI)

    Mittal, Sparsh ORNL

    2013-01-01

    Modern multicore processors are employing large last-level caches, for example Intel's E7-8800 processor uses 24MB L3 cache. Further, with each CMOS technology generation, leakage energy has been dramatically increasing and hence, leakage energy is expected to become a major source of energy dissipation, especially in last-level caches (LLCs). The conventional schemes of cache energy saving either aim at saving dynamic energy or are based on properties specific to first-level caches, and thus these schemes have limited utility for last-level caches. Further, several other techniques require offline profiling or per-application tuning and hence are not suitable for product systems. In this book, we present novel cache leakage energy saving schemes for single-core and multicore systems; desktop, QoS, real-time and server systems. Also, we present cache energy saving techniques for caches designed with both conventional SRAM devices and emerging non-volatile devices such as STT-RAM (spin-torque transfer RAM). We present software-controlled, hardware-assisted techniques which use dynamic cache reconfiguration to configure the cache to the most energy efficient configuration while keeping the performance loss bounded. To profile and test a large number of potential configurations, we utilize low-overhead, micro-architecture components, which can be easily integrated into modern processor chips. We adopt a system-wide approach to save energy to ensure that cache reconfiguration does not increase energy consumption of other components of the processor. We have compared our techniques with state-of-the-art techniques and have found that our techniques outperform them in terms of energy efficiency and other relevant metrics. The techniques presented in this book have important applications in improving energy-efficiency of higher-end embedded, desktop, QoS, real-time, server processors and multitasking systems. This book is intended to be a valuable guide for both newcomers

  8. Technique for Measuring Hybrid Electronic Component Reliability

    SciTech Connect (OSTI)

    Green, C.C.; Hernandez, C.L.; Hosking, F.M.; Robinson, D.; Rutherford, B.; Uribe, F.

    1999-01-01

    Materials compatibility studies of aged, engineered materials and hardware are critical to understanding and predicting component reliability, particularly for systems with extended stockpile life requirements. Nondestructive testing capabilities for component reliability would significantly enhance lifetime predictions. For example, if the detection of crack propagation through a solder joint can be demonstrated, this technique could be used to develop baseline information to statistically determine solder joint lifelengths. This report will investigate high frequency signal response techniques for nondestructively evaluating the electrical behavior of thick film hybrid transmission lines.

  9. Nondestructive analysis of oil shales with PGNAA technique

    SciTech Connect (OSTI)

    Maly, J.; Bozorgmanesh, H.

    1984-02-01

    The feasibility of nondestructive analysis of oil shales using the prompt gamma neutron activation analysis (PGNAA) technique was studied. The PGNAA technique, developed originally for continuous analysis of coal on the belt, was applied to the analysis of eight oil-shale samples, containing between 9 and 60 gallons of oil per ton and 0.8% to 3.4% hydrogen. The PGNAA technique was modified using four neutron moderation conditions: non-moderated neutrons; non-moderated and partially moderated neutrons reflected from a water box behind the source; neutrons moderated in a water box behind and in front of the source; and neutrons strongly moderated in a polyethylene block placed in front of the source and with reflected neutrons from a water box behind the source. The studied oil shales were measured in their aluminum or wooden (masonite) boxes. The obtained Ge-Li spectra were processed by LSI-11/23 computer, using the modified programs previously developed by SAI for continuous coal analysis. The results of such processing (the peak areas for several gamma lines) were corrected and plotted against the weight percent of each analyzed element (from the chemical analysis). Response curves developed for H, C, N, S, Na, Mg, Al, Si, Ti, Ca, Fe and K show generally good linear proportions of peak area to the weight percent of the element. For hydrogen determination, NMD conditions had to be used where the response curve was not linear, but followed a curve whose slope rose with hydrogen concentration. This effect is caused by improving neutron self-moderation in sample boxes of rich oil shales, as compared to poor self-moderation of neutrons in very lean oil shales. The moisture in oil shales was measured by microwave absorption technique in small masonite boxes. This method was calibrated four times using oil-shale samples mixed gradually with larger and larger amounts of water.

  10. Indian Valley Hot Springs Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

    Exploration Activity Page Technique Activity Start Date Activity End Date Reference Material Isotopic Analysis- Fluid At Indian Valley Hot Springs Geothermal Area (1990) Isotopic...

  11. A TOMOGRAPHIC TECHNIQUE FOR MAGNETIZED BEAM MATCHING.

    SciTech Connect (OSTI)

    MONTAG,C.ET AL.

    2004-07-05

    To maintain low electron beam temperatures in the proposed RHIC electron cooler, careful matching of the magnetized beam from the source to the cooler solenoid is mandatory. We propose a tomographic technique to diagnose matching conditions. First simulation results will be presented.

  12. Activity report

    SciTech Connect (OSTI)

    Yu, S W

    2008-08-11

    This report is aimed to show the author's activities to support the LDRD. The title is 'Investigation of the Double-C Behavior in the Pu-Ga Time-Temperature-Transformation Diagram' The sections are: (1) Sample Holder Test; (2) Calculation of x-ray diffraction patterns; (3) Literature search and preparing publications; (4) Tasks Required for APS Experiments; and (5) Communications.

  13. INTEGRATE Partner Demonstrates Active Network Management of Distributed

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

    Energy Resources at NREL | Energy Systems Integration | NREL INTEGRATE Partner Demonstrates Active Network Management of Distributed Energy Resources at NREL April 28, 2016 New York-based Smarter Grid Solutions (SGS) has employed its Active Network Management (ANM) system at NREL to manage and maintain a modeled distribution grid within normal operating limits through the autonomous management, coordination, and control of distributed energy resources (DER) in real time. SGS started by

  14. INTEGRATE Partner Demonstrates Active Network Management of Distributed

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

    Energy Resources at NREL | Grid Modernization | NREL INTEGRATE Partner Demonstrates Active Network Management of Distributed Energy Resources at NREL April 28, 2016 New York-based Smarter Grid Solutions (SGS) has employed its Active Network Management (ANM) system at NREL to manage and maintain a modeled distribution grid within normal operating limits through the autonomous management, coordination, and control of distributed energy resources (DER) in real time. SGS started by demonstrating

  15. A comprehensive laboratory study on the immersion freezing behavior of illite NX particles: a comparison of 17 ice nucleation measurement techniques

    SciTech Connect (OSTI)

    Hiranuma, Naruki; Augustin-Bauditz, Stefanie; Bingemer, Heinz; Budke, Carsten; Curtius, J.; Danielczok, Anja; Diehl, K.; Dreischmeier, Katharina; Ebert, Martin; Frank, F.; Hoffmann, Nadine; Kandler, Kondrad; Kiselev, Alexei; Koop, Thomas; Leisner, Thomas; Mohler, Ottmar; Nillius, Bjorn; Peckhaus, Andreas; Rose, Diana; Weinbruch, Stephan; Wex, Heike; Boose, Yvonne; DeMott, Paul J.; Hader, John D.; Hill, Thomas; Kanji, Zamin; Kulkarni, Gourihar R.; Levin, Ezra; McCluskey, Christina; Murakami, Masataka; Murray, Benjamin J.; Niedermeier, Dennis; Petters, Markus D.; O'Sullivan, Daniel; Saito, Atsushi; Schill, Gregory; Tajiri, Takuya; Tolbert, Margaret A.; Welti, Andre; Whale, Thomas; Wright, Timothy; Yamashita, Katsuya

    2015-01-01

    Immersion freezing is the most relevant heterogeneous ice nucleation mechanism 3 through which ice crystals are formed in mixed-phase clouds. In recent years, an increasing 4 number of laboratory experiments utilizing a variety of instruments have examined immersion 5 freezing activity of atmospherically relevant ice nucleating particles (INPs). However, an 6 inter-comparison of these laboratory results is a difficult task because investigators have used 7 different ice nucleation (IN) measurement methods to produce these results. A remaining 8 challenge is to explore the sensitivity and accuracy of these techniques and to understand how 9 the IN results are potentially influenced or biased by experimental parameters associated with 10 these techniques. 11 Within the framework of INUIT (Ice Nucleation research UnIT), we distributed an 12 illite rich sample (illite NX) as a representative surrogate for atmospheric mineral dust 13 particles to investigators to perform immersion freezing experiments using different IN 14 measurement methods and to obtain IN data as a function of particle concentration, 15 temperature (T), cooling rate and nucleation time. Seventeen measurement methods were 16 involved in the data inter-comparison. Experiments with seven instruments started with the 17 test sample pre-suspended in water before cooling, while ten other instruments employed 18 water vapor condensation onto dry-dispersed particles followed by immersion freezing. The 19 resulting comprehensive immersion freezing dataset was evaluated using the ice nucleation 20 active surface-site density (ns) to develop a representative ns(T) spectrum that spans a wide 21 temperature range (-37 C < T < -11 C) and covers nine orders of magnitude in ns. 22 Our inter-comparison results revealed a discrepancy between suspension and dry-23 dispersed particle measurements for this mineral dust. While the agreement was good below ~-24 26 C, the ice nucleation activity, expressed in ns, was

  16. Optimizing spare parts inventories using RAM techniques

    SciTech Connect (OSTI)

    Purser, F.E.; Farmer, F.G. )

    1990-01-01

    The perfect spare parts inventory is one which always has the component required to prevent a facility outage. Ideally, such an inventory would contain exactly enough of each component to maintain the facility in operating condition until replacements for the spare parts arrive. Real spare parts inventories have typically been specified using a combination of engineering judgement and manufacturer's recommendations, as modified by budgetary constraints. The development of reliability, availability and maintainability (RAM) techniques provides additional tools through which spare parts inventories can more effectively be used to improve the safety and availability of a facility. This paper presents an analysis performed at the INEL using the techniques resident in a Reliability-Centered-Maintenance (RCM) program to prioritize components based on contribution to risk and to availability. The fill rate model or the confidence level approach could then be performed for those critical components resulting in an optimum stock level for the facility.

  17. Plasma filtering techniques for nuclear waste remediation

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

    Gueroult, Renaud; Hobbs, David T.; Fisch, Nathaniel J.

    2015-04-24

    The economical viability of nuclear waste cleanup e orts could, in some cases, be put at risk due to the difficulties faced in handling unknown and complex feedstocks. Plasma filtering, which operates on dissociated elements, offers advantages over chemical techniques for the processing of such wastes. In this context, the economic feasibility of plasma mass filtering for nuclear waste pretreatment before ultimate disposal is analyzed. Results indicate similar costs for chemical and plasma solid-waste pretreatment per unit mass of waste, but suggest significant savings potential as a result of a superior waste mass minimization. This performance improvement is observed overmore » a large range of waste chemical compositions, representative of legacy waste's heterogeneity. Although smaller, additional savings arise from the absence of a secondary liquid waste stream, as typically produced by chemical techniques.« less

  18. Dental diagnostics using optical coherence techniques

    SciTech Connect (OSTI)

    Nathel, H.; Colston, B.; Armitage, G.

    1994-11-15

    Optical radiation can be used for diagnostic purposes in oral medicine. However, due to the turbid, amorphous, and inhomogeneous nature of dental tissue conventional techniques used to transilluminate materials are not well suited to dental tissues. Optical coherence techniques either in the time- of frequency-domain offer the capabilities of discriminating scattered from unscattered light, thus allowing for imaging through turbid tissue. Currently, using optical time-domain reflectometry we are able to discriminate specular from diffuse reflections occurring at tissue boundaries. We have determined the specular reflectivity of enamel and dentin to be approximately 6.6 x 10{sup -5} and 1.3 x 10{sup -6}, respectively. Implications to periodontal imaging will be discussed.

  19. Plasma filtering techniques for nuclear waste remediation

    SciTech Connect (OSTI)

    Gueroult, Renaud; Hobbs, David T.; Fisch, Nathaniel J.

    2015-04-24

    The economical viability of nuclear waste cleanup e orts could, in some cases, be put at risk due to the difficulties faced in handling unknown and complex feedstocks. Plasma filtering, which operates on dissociated elements, offers advantages over chemical techniques for the processing of such wastes. In this context, the economic feasibility of plasma mass filtering for nuclear waste pretreatment before ultimate disposal is analyzed. Results indicate similar costs for chemical and plasma solid-waste pretreatment per unit mass of waste, but suggest significant savings potential as a result of a superior waste mass minimization. This performance improvement is observed over a large range of waste chemical compositions, representative of legacy waste's heterogeneity. Although smaller, additional savings arise from the absence of a secondary liquid waste stream, as typically produced by chemical techniques.

  20. Techniques and guidelines for streamlining NEPA

    SciTech Connect (OSTI)

    Dickerman, J.A.; Tolbert, V.R.; Richmond, A.A.; Salk, M.S. )

    1993-01-01

    Five ideas for streamlining both the NEPA process and documents are explored for preparers of NEPA documents. Techniques and guidelines that implement these ideas will be provided as effective worksheets, pithy guidelines, flowcharts, and examples. The five streamlining ideas and the techniques or guidelines to achieve them are: (1) emphasize early planning through concise definition of project scope, purpose, need, and proposed action; determine need for compliance with applicable environmental requirements. (2) develop effective worksheets that include purpose, need, and proposed action; issue analysis; alternatives; environmental consequences; and NEPA checklist. (3) use information services/databases to integrate information services and identify existing databases. (4) maximize use of tables and graphs for analysis of alternatives; assumptions used (bounding analyses); environmental consequences. (5) create inviting documents with clear, concise writing; summarize in text; supporting data in appendices; and inviting visual layouts.

  1. New characterization techniques for LSST sensors

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

    Nomerotski, A.

    2015-06-18

    Fully depleted, thick CCDs with extended infra-red response have become the sensor of choice for modern sky surveys. The charge transport effects in the silicon and associated astrometric distortions could make mapping between the sky coordinates and sensor coordinates non-trivial, and limit the ultimate precision achievable with these sensors. Two new characterization techniques for the CCDs, which both could probe these issues, are discussed: x-ray flat fielding and imaging of pinhole arrays.

  2. Radiochemical technique for intensification of underexposed autoradiographs

    SciTech Connect (OSTI)

    Owunwanne, A.

    1984-04-01

    A radiochemical technique has been used to recover images of underexposed and developed autoradiographs. The underexposed image was radioactivated in a solution of (/sup 35/S)thiourea, air-dried, and reexposed to Kodak NMC film which was developed and processed in a Kodak X-Omat processor. Features which were not discernible in the underexposed autoradiographs were well distinguished in the intensified autoradiograph.

  3. Algorithmic Techniques for Massive Data Sets

    SciTech Connect (OSTI)

    Moses Charikar

    2006-04-03

    This report describes the progress made during the Early Career Principal Investigator (ECPI) project on Algorithmic Techniques for Large Data Sets. Research was carried out in the areas of dimension reduction, clustering and finding structure in data, aggregating information from different sources and designing efficient methods for similarity search for high dimensional data. A total of nine different research results were obtained and published in leading conferences and journals.

  4. Downhole drilling network using burst modulation techniques

    DOE Patents [OSTI]

    Hall; David R. , Fox; Joe

    2007-04-03

    A downhole drilling system is disclosed in one aspect of the present invention as including a drill string and a transmission line integrated into the drill string. Multiple network nodes are installed at selected intervals along the drill string and are adapted to communicate with one another through the transmission line. In order to efficiently allocate the available bandwidth, the network nodes are configured to use any of numerous burst modulation techniques to transmit data.

  5. A Radiographic Technique With Heavy Ion Microbeams

    SciTech Connect (OSTI)

    Muscio, J.; Somacal, H.; Burlon, A. A.; Debray, M. E.; Valda, A. A.; Kreiner, A. J.; Kesque, J. M.; Minsky, D. M.

    2007-02-12

    In this work, we introduce a new technique to perform densitometric and multielemental analysis of samples at the same time using a simple detector with heavy ion micro-beams. It consists in the simultaneous analysis of X-rays induced in the sample and in a secondary target arranged behind the specimen. The X-rays originated in the secondary target are attenuated when crossing the specimen producing a radiographic image with a monochromatic source.

  6. A technique for synthesizing metal tritide standards

    SciTech Connect (OSTI)

    Bach, H. T.; Allen, T. H.; Hill, D. D.; Martinez, P. T.; Schwarz, R. B.; Paglieri, S. N.; Wermer, J. R.

    2008-07-15

    Before surplus plutonium pits can be decommissioned and converted into metal oxides to be used as reactor fuels, residual tritium must be reduced to an acceptable level. We have developed two analytical methods involving melting and acid dissolution, combined with liquid scintillation counting as a quantitative and sensitive technique for measuring residual tritium in Pu metal. The detection limit, linearity, and reproducibility of these analytical methods must be validated with a series of metal tritide standards. Since there are no commercially available metal tritide standards, we have developed a technique for their synthesis. The synthesis of these low-level metal tritide standards is accomplished by charging cerium powder with a known amount of tritium to form a master cerium tritide alloy and then by aliquoting from this master alloy and diluting with pure cerium powder to form a series of standards with different tritium concentrations. The major difficulty in synthesizing these standards is that the samples contain extremely low levels of tritium, which span over three decades of concentrations. The synthesis technique and initial data obtained for cerium hydride samples will be presented. (authors)

  7. Balanced pressure techniques applied to geothermal drilling

    SciTech Connect (OSTI)

    Dareing, D.W.

    1981-08-01

    The objective of the study is to evaluate balanced pressure drilling techniques for use in combating lost circulation in geothermal drilling. Drilling techniques evaluated are: aerated drilling mud, parasite tubing, concentric drill pipe, jet sub, and low density fluids. Based on the present state of the art of balanced pressure drilling techniques, drilling with aerated water has the best overall balance of performance, risk, availability, and cost. Aerated water with a 19:1 free air/water ratio reduce maximum pressure unbalance between wellbore and formation pressures from 1000 psi to 50 psi. This pressure unbalance is within acceptable operating limits; however, air pockets could form and cause pressure surges in the mud system due to high percent of air. Low density fluids used with parasite tubing has the greatest potential for combating lost circulation in geothermal drilling, when performance only is considered. The top portion of the hole would be aerated through the parasite tube at a 10:1 free air/mud ratio and the low density mud could be designed so that its pressure gradient exactly matches the formation pore pressure gradient. The main problem with this system at present is the high cost of ceramic beads needed to produce low density muds.

  8. Limiting Effects in the Transverse-to-Longitudinal Emittance Exchange Technique for Low Energy Relativistic Electron Beams

    SciTech Connect (OSTI)

    Rihaoui, M.M.; Piot, P.; Power, J.G.; Gai, W.; /Argonne

    2009-05-01

    Transverse to longitudinal phase space manipulation hold great promises, e.g., as a potential technique for repartitioning the emittances of a beam. A proof-of-principle experiment to demonstrate the exchange of a low longitudinal emittance with a larger transverse emittance is in preparation at the Argonne Wakefield Accelerator using a {approx}12 MeV electron beam. In this paper we explore the limiting effects of this phase space manipulation method including high order and collective effects. A realistic start-to-end simulation of the planned proof-of-principle experiment including sensitivity studies is also presented.

  9. Laboratory Activities

    SciTech Connect (OSTI)

    Brown, Christopher F.; Serne, R. Jeffrey

    2008-01-17

    This chapter summarizes the laboratory activities performed by PNNLs Vadose Zone Characterization Project in support of the Tank Farm Vadose Zone Program, led by CH2M HILL Hanford Group, Inc. The results of these studies are contained in numerous reports (Lindenmeier et al. 2002; Serne et al. 2002a, 2002b, 2002c, 2002d, 2002e; Lindenmeier et al. 2003; Serne et al. 2004a, 2004b; Brown et al. 2005, 2006a, 2007; Serne et al. 2007) and have generated much of the data reported in Chapter 22 (Geochemistry-Contaminant Movement), Appendix G (Geochemistry-Contaminant Movement), and Cantrell et al. (2007, SST WMA Geochemistry Data Package in preparation). Sediment samples and characterization results from PNNLs Vadose Zone Characterization Project are also shared with other science and technology (S&T) research projects, such as those summarized in Chapter 12 (Associated Science Activities).

  10. Advanced InSAR Techniques for Geothermal Exploration and Production...

    Open Energy Info (EERE)

    how these techniques are being used for different stages of geothermal exploration and management. In both cases, multiple advanced InSAR techniques were used to quantify...

  11. "PBS NEWSHOUR" covers new technique that may make solar panel...

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

    covers new technique that may make solar panel production less expensive "PBS NEWSHOUR" covers new technique that may make solar panel production less expensive Scientists have ...

  12. Moore Foundation Funds ALS Researchers for Promising New Technique...

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

    Moore Foundation Funds ALS Researchers for Promising New Technique for Studying Materials Moore Foundation Funds ALS Researchers for Promising New Technique for Studying Materials...

  13. Jiaozuo Coal Group Hejing Technique Co Ltd | Open Energy Information

    Open Energy Info (EERE)

    Jiaozuo Coal Group Hejing Technique Co Ltd Jump to: navigation, search Name: Jiaozuo Coal Group Hejing Technique Co Ltd Place: Jiaozuo, Henan Province, China Zip: 454002 Product: A...

  14. Sub-Cell Resolution Techniques for Multi-Material Electromagnetics...

    Office of Scientific and Technical Information (OSTI)

    Sub-Cell Resolution Techniques for Multi-Material Electromagnetics in Two and Three Dimensions. Citation Details In-Document Search Title: Sub-Cell Resolution Techniques for ...

  15. High-Throughput/Combinatorial Techniques in Hydrogen Storage...

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

    High-ThroughputCombinatorial Techniques in Hydrogen Storage Materials R&D (presentation) High-ThroughputCombinatorial Techniques in Hydrogen Storage Materials R&D (presentation)...

  16. High Througput Combinatorial Techniques in Hydrogen Storage Materials...

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

    High Througput Combinatorial Techniques in Hydrogen Storage Materials R&D Workshop High Througput Combinatorial Techniques in Hydrogen Storage Materials R&D Workshop Summary of the...

  17. "PBS NEWSHOUR" covers new technique that may make solar panel...

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

    "PBS NEWSHOUR" covers new technique that may make solar panel production less expensive "PBS NEWSHOUR" covers new technique that may make solar panel production less expensive ...

  18. USE OF ADVANCED DATA PROCESSING TECHNIQUES IN THE IMAGING OF...

    Open Energy Info (EERE)

    Optim's proprietary nonlinear velocity optimization technique and pre-stack Kirchhoff migration. The nonlinear optimization technique is used to obtain high resolution velocity...

  19. Program Evaluation and Review Technique Operational Review Meeting...

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

    Program Evaluation and Review Technique Operational Review Meeting 2016 Program Evaluation and Review Technique Operational Review Meeting 2016 February 23, 2016 9:00AM PST to...

  20. Novel water-removal technique boosts performance of carbon nanomateria...

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

    Technique boosts performance of carbon nanomaterials Novel water-removal technique boosts ... amount of added water that collects between the oxygen-functionalized nanosheets. ...

  1. Property:ExplorationParentTechnique | Open Energy Information

    Open Energy Info (EERE)

    orationParentTechnique Property Type Page Description parent technique for organization tree Retrieved from "http:en.openei.orgwindex.php?titleProperty:ExplorationParentTechni...

  2. Category:Passive Seismic Techniques | Open Energy Information

    Open Energy Info (EERE)

    Passive Seismic Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Passive Seismic Techniques page? For detailed...

  3. Category:Formation Testing Techniques | Open Energy Information

    Open Energy Info (EERE)

    Formation Testing Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Formation Testing Techniques page? For detailed...

  4. Category:Open-Hole Techniques | Open Energy Information

    Open Energy Info (EERE)

    Open-Hole Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Open-Hole Techniques page? For detailed information on...

  5. Category:Electromagnetic Profiling Techniques | Open Energy Informatio...

    Open Energy Info (EERE)

    Electromagnetic Profiling Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Electromagnetic Profiling Techniques page? For...

  6. Category:Data and Modeling Techniques | Open Energy Information

    Open Energy Info (EERE)

    Data and Modeling Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Data and Modeling Techniques page? For detailed...

  7. Category:Remote Sensing Techniques | Open Energy Information

    Open Energy Info (EERE)

    Remote Sensing Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Remote Sensing Techniques page? For detailed information...

  8. Category:Ground Electromagnetic Techniques | Open Energy Information

    Open Energy Info (EERE)

    Ground Electromagnetic Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Ground Electromagnetic Techniques page? For...

  9. " A Heterodyne Laser-induced Fluorescence Technique to Determine...

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

    A Heterodyne Laser-induced Fluorescence Technique to Determine Simultaneously the Bulk ... molecule velocity distribution using a heterodyne laser induced fluorescence technique. ...

  10. Geothermal Exploration Techniques a Case Study. Final Report...

    Open Energy Info (EERE)

    Techniques a Case Study. Final Report Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Geothermal Exploration Techniques a Case Study. Final Report...

  11. Fission Product Separation/Extraction Techniques (Book) | SciTech...

    Office of Scientific and Technical Information (OSTI)

    Book: Fission Product SeparationExtraction Techniques Citation Details In-Document Search Title: Fission Product SeparationExtraction Techniques No abstract prepared. Authors: ...

  12. MANAGEMENT PRE-START REVIEW FINAL REPORT FOR THE BIOSAFETY LEVEL 3 (BSL-3) FACILITY (B368) LAWRENCE LIVERMORE NATIONAL LABORATORY

    SciTech Connect (OSTI)

    Hull, R; O'brien, J; Owens, T; Salvo, V; Sassone, D; Tuholski, S J; Tsan, S

    2006-07-25

    A Lawrence Livermore National Laboratory (LLNL) Management Pre-Start Review (MPR) Team was formed to independently verify the operational readiness of Building 368 (B368) Biosafety Level III (BSL-3) Facility to conduct research with biological pathogens and toxins including those considered Select Agents. Review objectives and criteria were developed from the DOE/NNSA and LLNL requirements. These were provided in the Implementation Plan for the Biosafety Level III (BSL-3) Facility Management Pre-Start Review (BSL-3 MPR) at Lawrence Livermore National Laboratory that was reviewed and approved by DOE/NNSA-LSO. The formal part of the LLNL MPR for the BSL-3 Facility was begun in August of 2005 but work on the MPR was stopped in October of 2005 due to the need for LLNL to reassess organizational and operational controls and respond to Centers for Disease Control and Prevention inquiries related to a shipping incident involving select agents. The MPR was restarted in mid-June of 2006. Preliminary facility tours and familiarization with project documents took place in June of 2005. The Independent Management Review Team consists of seven members led by a Team Leader with expertise in management, operations, and safety basis experience with biosafety laboratories. Other team members have expertise in electrical engineering, security, environmental/waste management/regulatory compliance, biosafety/industrial hygiene/medical, structural engineering, and mechanical engineering. The MPR Team reviewed various documents, including authorization basis, safety, emergency preparedness, and various operations, configuration, and management plans. They also reviewed building plans, equipment repair/maintenance documents, training records, and many standard operating procedures. The MPR resulted in three Pre-Start Findings, one Post-Start/Critical Finding, and four observations which are shown on Tables 1, 2, and 3, respectively. Based upon this review the Team feels that the B368

  13. Validation and transfer of NDI techniques for corrosion quantification and small crack/disbond detection

    SciTech Connect (OSTI)

    Smith, C.D.; Shurtleff, W.W.

    1997-07-01

    A coordinated program in inspection system research was started at the Federal Aviation Administration (FAA) Technical Center in 1990 as part the National Aging Aircraft Research Program. The primary objectives of the Inspection Systems Research Initiative are to act in concert with other government agencies and private industry to develop improved inspection techniques to address specific airframe and engine inspection problems and to evaluate and validate existing and emerging inspection systems. Advanced conventional technologies, emerging technologies, or combinations of technologies are investigated for their ability to accurately and reliably detect cracks, disbonds, corrosion, and other damage. This paper will present an overview of the FAA inspection system research initiative with special focus on the successes through validation and technology transfer.

  14. Novel polarization-sensitive micropulse lidar measurement technique

    SciTech Connect (OSTI)

    Flynn, Connor J.; Mendoza, Albert; Zheng, Yunhui; Mathur, Savyasachee

    2007-03-19

    Polarization-sensitive detection of elastic backscatter is useful for detection of cloud phase and depolarizing aerosols. The U.S. DOE Atmospheric Radiation Measurements (ARM) Program has deployed micropulse lidar (MPL) for over a decade, but without polarized detection. Adding an actively-controlled liquid crystal retarder provides the capability to identify depolarizing particles by alternately transmitting linearly and circularly polarized light. This represents a departure from established techniques which transmit exclusively linear polarization or exclusively circular polarization. Mueller matrix calculations yield simple relationships between the well-known linear depolarization ratio δlinear, the circular depolarization ratio δcirc, and the hybrid MPL depolarization ratio δMPL. This research was supported by the Office of Biological and Environmental Research of the U.S. Department of Energy as part of the Atmospheric Radiation Measurement Program.

  15. Assurance and assessment techniques for nuclear weapon related software

    SciTech Connect (OSTI)

    Blackledge, M.A.

    1993-07-01

    Sandia National Laboratories has the qualification evaluation responsibility for the design of certain components intended for use in nuclear weapons. Specific techniques in assurance and assessment have been developed to provide the quality evidence that the software has been properly qualified for use. Qualification Evaluation is a process for assessing the suitability of either a process used to develop or manufacture the product, or the product itself. The qualification process uses a team approach to evaluating a product or process, chaired by a Quality Assurance professional, with other members representing the design organization, the systems organization, and the production agency. Suitable for use implies that adequate and appropriate definition and documentation has been produced and formally released, adequate verification and validation activities have taken place to ensure proper operation, and the software product meets all requirements, explicitly or otherwise.

  16. Assurance and assessment techniques for nuclear weapon related software

    SciTech Connect (OSTI)

    Blackledge, M.A.

    1993-12-31

    Sandia National Laboratories has the qualification evaluation responsibility for the design of certain components intended for use in nuclear weapons. Specific techniques in assurance and assessment have been developed to provide the quality evidence that the software has been properly qualified for use. Qualification Evaluation is a process for assessing the suitability of either a process used to develop or manufacture the product, or the product itself The qualification process uses a team approach to evaluating a product or process, chaired by a Quality Assurance professional, with other members representing the design organization, the systems organization, and the production agency. Suitable for use implies that adequate and appropriate definition and documentation has been produced and formally released, adequate verification and validation activities have taken place to ensure proper operation, and the software product meets all requirements, explicitly or otherwise.

  17. Assurance and assessment techniques for nuclear weapon related software

    SciTech Connect (OSTI)

    Blackledge, M.A.

    1993-01-01

    Sandia National Laboratories has the qualification evaluation responsibility for the design of certain components intended for use in nuclear weapons. Specific techniques in assurance and assessment have been developed to provide the quality evidence that the software has been properly qualified for use. Qualification Evaluation is a process for assessing the suitability of either a process used to develop or manufacture the product, or the product itself. The qualification process uses a team approach to evaluating a product or process, chaired by a Quality Assurance professional, with other members representing the design organization, the systems organization, and the production agency. Suitable for use implies that adequate and appropriate definition and documentation has been produced and formally released, adequate verification and validation activities have taken place to ensure proper operation, and the software product meets all requirements, explicitly or otherwise.

  18. FY-87 packing fabrication techniques (commercial waste form) results

    SciTech Connect (OSTI)

    Werry, E.V.; Gates, T.E.; Cabbage, K.S.; Eklund, J.D.

    1988-04-01

    This report covers the investigation of fabrication techniques associated with the development of suitable materials and methods to provide a prefabricated packing for waste packages for the Basalt Waste Isolation Project (BWIP). The principal functions of the packing are to minimize container corrosion during the 300 to 1000 years following repository closure and provide long-term control of the release of radionuclides from the waste package. The investigative work, discussed in this report, was specifically conceived to develop the design criteria for production of full-scale prototypical packing rings. The investigative work included the preparation of procedures, the preparation of fabrication materials, physical properties, and the determination of the engineering properties. The principal activities were the preparation of the materials and the determination of the physical properties. 21 refs., 20 figs., 14 tabs.

  19. INTERIM REPORT ON CONCRETE DEGRADATION MECHANISMS AND ONLINE MONITORING TECHNIQUES

    SciTech Connect (OSTI)

    Mahadevan, Sankaran; Agarwal, Vivek; Neal, Kyle; Kosson, David; Adams, Douglas

    2014-09-01

    The existing fleets of nuclear power plants in the United States have initial operating licenses of 40 years, though most these plants have applied for and received license extensions. As plant structures, systems, and components age, their useful life—considering both structural integrity and performance—is reduced as a result of deterioration of the materials. The online monitoring of concrete structure conducted under the Advanced Instrumentation, Information, and Control Technologies Pathway of the Light Water Reactor Sustainability program at Idaho National Laboratory will develop and demonstrate concrete structures health monitoring capabilities. Assessment and management of aging concrete structures in nuclear plants require a more systematic approach than simple reliance on existing code margins of safety. Therefore, the structural health monitoring is required to produce actionable information regarding structural integrity that supports operational and maintenance decisions. Through this research project, several national laboratories and Vanderbilt University proposes to develop a framework of research activities for the health monitoring of nuclear power plant concrete structures that includes integration of four elements—damage modeling, monitoring, data analytics, and uncertainty quantification. This report briefly discusses available techniques and ongoing challenges in each of the four elements of the proposed framework with emphasis on degradation mechanisms and online monitoring techniques.

  20. Assessment of Weatherization Assistance Program Needs for Improved Residential Measure Selection Techniques

    SciTech Connect (OSTI)

    Gettings, M.B.

    1991-01-01

    This report documents a study conducted by the Oak Ridge National Laboratory (ORNL) to evaluate the current measure selection techniques and needs of agencies within the Weatherization Assistance Program (WAP). The study precedes initiation of a project to revise and upgrade the current means of selecting energy conservation measures for low-income single- and multi-family housing and includes recommendations for the revision. Issues relevant to the formation of the revised audit procedures are discussed. Currently available audits are reviewed. No single- to multi-family audit program was found capable of fulfilling the currents needs of the WAP. Recommendations include the separate development of single- and multi-family audits. Addition of specific features to the single-family audit is recommended, including (1) measure ranking unique to each eligible house, (2) heating and cooling equipment measures, (3) cooling envelope measures, (4) means of determining the amount of infiltration work to be performed, (5) potential for customizing and simplifying to meet local needs, and (6) implementation on either a personal computer or as an alternate manual technique. A single-family audit development plan is proposed which includes examination of several existing programs as potential starting points. Recommendations related to the development of a WAP multi-family audit include examination of several existing private programs for possible use by state WAP agencies expressing the greatest need and further study of the DOE supported programs ASEAM and CIRA as possible starting points for a DOE procedure. Early identification of approved multi-family measures and their applicability to various building stock, equipment types, and fuels is also recommended.

  1. Technique for fast and efficient hierarchical clustering

    DOE Patents [OSTI]

    Stork, Christopher

    2013-10-08

    A fast and efficient technique for hierarchical clustering of samples in a dataset includes compressing the dataset to reduce a number of variables within each of the samples of the dataset. A nearest neighbor matrix is generated to identify nearest neighbor pairs between the samples based on differences between the variables of the samples. The samples are arranged into a hierarchy that groups the samples based on the nearest neighbor matrix. The hierarchy is rendered to a display to graphically illustrate similarities or differences between the samples.

  2. Ambient temperature modelling with soft computing techniques

    SciTech Connect (OSTI)

    Bertini, Ilaria; Ceravolo, Francesco; Citterio, Marco; Di Pietra, Biagio; Margiotta, Francesca; Pizzuti, Stefano; Puglisi, Giovanni; De Felice, Matteo

    2010-07-15

    This paper proposes a hybrid approach based on soft computing techniques in order to estimate monthly and daily ambient temperature. Indeed, we combine the back-propagation (BP) algorithm and the simple Genetic Algorithm (GA) in order to effectively train artificial neural networks (ANN) in such a way that the BP algorithm initialises a few individuals of the GA's population. Experiments concerned monthly temperature estimation of unknown places and daily temperature estimation for thermal load computation. Results have shown remarkable improvements in accuracy compared to traditional methods. (author)

  3. Imaging of SCC with Acoustic Techniques

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

    Operated by Los Alamos National Security, LLC for the U.S. Department of Energy's NNSA UNCLASSIFIED NDE Solutions Imaging SCC with Acoustic Techniques Marcel Remillieux, TJ Ulrich, Pierre-Yves Le Bas Slide 2 Operated by Los Alamos National Security, LLC for the U.S. Department of Energy's NNSA UNCLASSIFIED Context * 2014 meeting at EPRI resulted in a 5 year plan to: - Provide point inspection on SCC  once an area of concern has been identified visually (e.g., camera), can we interrogate this

  4. Neutron Resonance Transmission Analysis (NRTA): A Nondestructive Assay Technique for the Next Generation Safeguards Initiative’s Plutonium Assay Challenge

    SciTech Connect (OSTI)

    J. W. Sterbentz; D. L. Chichester

    2010-12-01

    This is an end-of-year report for a project funded by the National Nuclear Security Administration's Office of Nuclear Safeguards (NA-241). The goal of this project is to investigate the feasibility of using Neutron Resonance Transmission Analysis (NRTA) to assay plutonium in commercial light-water-reactor spent fuel. This project is part of a larger research effort within the Next-Generation Safeguards Initiative (NGSI) to evaluate methods for assaying plutonium in spent fuel, the Plutonium Assay Challenge. The first-year goals for this project were modest and included: 1) developing a zero-order MCNP model for the NRTA technique, simulating data results presented in the literature, 2) completing a preliminary set of studies investigating important design and performance characteristics for the NRTA measurement technique, and 3) documentation of this work in an end of the year report (this report). Research teams at Los Alamos National Laboratory (LANL), Lawrence Berkeley National Laboratory (LBNL), Pacific Northwest National Laboratory (PNNL), and at several universities are also working to investigate plutonium assay methods for spent-fuel safeguards. While the NRTA technique is well proven in the scientific literature for assaying individual spent fuel pins, it is a newcomer to the current NGSI efforts studying Pu assay method techniques having just started in March 2010; several analytical techniques have been under investigation within this program for two to three years or more. This report summarizes a nine month period of work.

  5. Benchmarking Outreach and Data Collection Techniques for External Portfolios

    Broader source: Energy.gov [DOE]

    This presentation contains information on Benchmarking Outreach and Data Collection Techniques for External Portfolios.

  6. Transient data acquisition techniques under EDS

    SciTech Connect (OSTI)

    Telford, S.

    1985-06-01

    This paper is the first of a series which describes the Enrichment Diagnostic System (EDS) developed for the MARS project at Lawrence Livermore National Laboratory. Although EDS was developed for use on AVLIS, the functional requirements, overall design, and specific techniques are applicable to any experimental data acquisition system involving large quantities of transient data. In particular this paper will discuss the techniques and equipment used to do the data acquisition. Included are what types of hardware are used and how that hardware (CAMAC, digital oscilloscopes) is interfaced to the HP computers. In this discussion the author will address the problems encountered and the solutions used, as well as the performance of the instrument/computer interfaces. The second topic the author will discuss is how the acquired data is associated to graphics and analysis portions of EDS through efficient real time data bases. This discussion will include how the acquired data is folded into the overall structure of EDS providing the user immediate access to raw and analyzed data. By example you will see how easily a new diagnostic can be added to the EDS structure without modifying the other parts of the system. 8 figs.

  7. Further Evaluation of the Neutron Resonance Transmission Analysis (NRTA) Technique for Assaying Plutonium in Spent Fuel

    SciTech Connect (OSTI)

    J. W. Sterbentz; D. L. Chichester

    2011-09-01

    This is an end-of-year report (Fiscal Year (FY) 2011) for the second year of effort on a project funded by the National Nuclear Security Administration's Office of Nuclear Safeguards (NA-241). The goal of this project is to investigate the feasibility of using Neutron Resonance Transmission Analysis (NRTA) to assay plutonium in commercial light-water-reactor spent fuel. This project is part of a larger research effort within the Next-Generation Safeguards Initiative (NGSI) to evaluate methods for assaying plutonium in spent fuel, the Plutonium Assay Challenge. The second-year goals for this project included: (1) assessing the neutron source strength needed for the NRTA technique, (2) estimating count times, (3) assessing the effect of temperature on the transmitted signal, (4) estimating plutonium content in a spent fuel assembly, (5) providing a preliminary assessment of the neutron detectors, and (6) documenting this work in an end of the year report (this report). Research teams at Los Alamos National Laboratory (LANL), Lawrence Berkeley National Laboratory (LBNL), Pacific Northwest National Laboratory (PNNL), and at several universities are also working to investigate plutonium assay methods for spent-fuel safeguards. While the NRTA technique is well proven in the scientific literature for assaying individual spent fuel pins, it is a newcomer to the current NGSI efforts studying Pu assay method techniques having just started in March 2010; several analytical techniques have been under investigation within this program for two to three years or more. This report summarizes work performed over a nine month period from January-September 2011 and is to be considered a follow-on or add-on report to our previous published summary report from December 2010 (INL/EXT-10-20620).

  8. Role of water activity in ethanol fermentations

    SciTech Connect (OSTI)

    Jones, R.P.; Greenfield, P.F.

    1986-01-01

    A separate role for water activity in the conversion of sugars to ethanol by two strains of yeast is identified. During fermentation of both single and mixed sugar substrates, the water activity was shown to remain constant during the logarithmic growth phase. This is despite the changes in concentration of substrates and production, the constancy reflecting the fact that the greater influence of ethanol on the solution activity is counterbalanced, in the early stages of the fermentation, by its low yield. The end of the log phase of growth coincides with the start of a period of gradually decreasing water activity. For the more ethanol-tolerant strain UQM66Y, growth was found to cease at a constant value of water activity while that for the less tolerant strain UQM70Y depended on both ethanol concentration and water activity. It is argued that water activity is a more appropriate variable than ethanol concentration for describing some of the nonspecific inhibitory effects apparent in ethanol fermentations. A straightforward method for the calculation of water activity during such fermentations based on the use of solution osmolarity is presented.

  9. Emerging Techniques for Field Device Security

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

    Schwartz, Moses; Bechtel Corp.; Mulder, John; Chavez, Adrian R.; Allan, Benjamin A.

    2014-11-01

    Critical infrastructure, such as electrical power plants and oil refineries, rely on embedded devices to control essential processes. State of the art security is unable to detect attacks on these devices at the hardware or firmware level. We provide an overview of the hardware used in industrial control system field devices, look at how these devices have been attacked, and discuss techniques and new technologies that may be used to secure them. We follow three themes: (1) Inspectability, the capability for an external arbiter to monitor the internal state of a device. (2) Trustworthiness, the degree to which a systemmore » will continue to function correctly despite disruption, error, or attack. (3) Diversity, the use of adaptive systems and complexity to make attacks more difficult by reducing the feasible attack surface.« less

  10. Technique for ship/wake detection

    DOE Patents [OSTI]

    Roskovensky, John K.

    2012-05-01

    An automated ship detection technique includes accessing data associated with an image of a portion of Earth. The data includes reflectance values. A first portion of pixels within the image are masked with a cloud and land mask based on spectral flatness of the reflectance values associated with the pixels. A given pixel selected from the first portion of pixels is unmasked when a threshold number of localized pixels surrounding the given pixel are not masked by the cloud and land mask. A spatial variability image is generated based on spatial derivatives of the reflectance values of the pixels which remain unmasked by the cloud and land mask. The spatial variability image is thresholded to identify one or more regions within the image as possible ship detection regions.

  11. Techniques for Intravascular Foreign Body Retrieval

    SciTech Connect (OSTI)

    Woodhouse, Joe B.; Uberoi, Raman

    2013-08-01

    As endovascular therapies increase in frequency, the incidence of lost or embolized foreign bodies is increasing. The presence of an intravascular foreign body (IFB) is well recognized to have the potential to cause serious complications. IFB can embolize and impact critical sites such as the heart, with subsequent significant morbidity or mortality. Intravascular foreign bodies most commonly result from embolized central line fragments, but they can originate from many sources, both iatrogenic and noniatrogenic. The percutaneous approach in removing an IFB is widely perceived as the best way to retrieve endovascular foreign bodies. This minimally invasive approach has a high success rate with a low associated morbidity, and it avoids the complications related to open surgical approaches. We examined the characteristics, causes, and incidence of endovascular embolizations and reviewed the various described techniques that have been used to facilitate subsequent explantation of such materials.

  12. Techniques for determining physical zones of influence

    DOE Patents [OSTI]

    Hamann, Hendrik F; Lopez-Marrero, Vanessa

    2013-11-26

    Techniques for analyzing flow of a quantity in a given domain are provided. In one aspect, a method for modeling regions in a domain affected by a flow of a quantity is provided which includes the following steps. A physical representation of the domain is provided. A grid that contains a plurality of grid-points in the domain is created. Sources are identified in the domain. Given a vector field that defines a direction of flow of the quantity within the domain, a boundary value problem is defined for each of one or more of the sources identified in the domain. Each of the boundary value problems is solved numerically to obtain a solution for the boundary value problems at each of the grid-points. The boundary problem solutions are post-processed to model the regions affected by the flow of the quantity on the physical representation of the domain.

  13. Delayed gamma technique for fissile material assay

    SciTech Connect (OSTI)

    Mozin, Vladimir; Tobin, Stephen; Vujie, Jasmina; Hunt, Alan

    2010-01-01

    Research sponsored by the Next Generation Safeguards Initiative are investigating several non-destructive assay techniques for the quantification of fissile plutonium mass in spent nuclear fuel assemblies. AppHcation of the delayed gamma signatures is investigated in this context. The objective of the research is to assess whether the delayed gamma assay instrument can provide sufficient sensitivity, isotope specificity and accuracy as required in nuclear material safeguards. This effort includes theoretical and experimental components for the optimal combination of interrogation parameters. A new modeling algorithm offering a high level of detail was developed specifically for this purpose and was validated in series of benchmark experiments. Preliminary modeling of the delayed gamma response from spent fuel assemblies was accomplished offering a future direction for the design process.

  14. Emerging Techniques for Field Device Security

    SciTech Connect (OSTI)

    Schwartz, Moses; Mulder, John; Chavez, Adrian R.; Allan, Benjamin A.

    2014-11-01

    Critical infrastructure, such as electrical power plants and oil refineries, rely on embedded devices to control essential processes. State of the art security is unable to detect attacks on these devices at the hardware or firmware level. We provide an overview of the hardware used in industrial control system field devices, look at how these devices have been attacked, and discuss techniques and new technologies that may be used to secure them. We follow three themes: (1) Inspectability, the capability for an external arbiter to monitor the internal state of a device. (2) Trustworthiness, the degree to which a system will continue to function correctly despite disruption, error, or attack. (3) Diversity, the use of adaptive systems and complexity to make attacks more difficult by reducing the feasible attack surface.

  15. Viscosity Meaurement Technique for Metal Fuels

    SciTech Connect (OSTI)

    Ban, Heng; Kennedy, Rory

    2015-02-09

    Metallic fuels have exceptional transient behavior, excellent thermal conductivity, and a more straightforward reprocessing path, which does not separate out pure plutonium from the process stream. Fabrication of fuel containing minor actinides and rare earth (RE) elements for irradiation tests, for instance, U-20Pu-3Am-2Np-1.0RE-15Zr samples at the Idaho National Laboratory, is generally done by melt casting in an inert atmosphere. For the design of a casting system and further scale up development, computational modeling of the casting process is needed to provide information on melt flow and solidification for process optimization. Therefore, there is a need for melt viscosity data, the most important melt property that controls the melt flow. The goal of the project was to develop a measurement technique that uses fully sealed melt sample with no Americium vapor loss to determine the viscosity of metallic melts and at temperatures relevant to the casting process. The specific objectives of the project were to: develop mathematical models to establish the principle of the measurement method, design and build a viscosity measurement prototype system based on the established principle, and calibrate the system and quantify the uncertainty range. The result of the project indicates that the oscillation cup technique is applicable for melt viscosity measurement. Detailed mathematical models of innovative sample ampoule designs were developed to not only determine melt viscosity, but also melt density under certain designs. Measurement uncertainties were analyzed and quantified. The result of this project can be used as the initial step toward the eventual goal of establishing a viscosity measurement system for radioactive melts.

  16. Acceptance for Beneficial Use for the 100K Service Water Pumps Auto Start Modifications Project 1K-97-3466M

    SciTech Connect (OSTI)

    MULLER, F.J.

    2000-03-27

    This Acceptance for Beneficial Use checklist covers the modifications to the K Basins service water pumps that added an auto-start function for reliability of the fire suppression system. The following information is to document the Acceptance for Beneficial Use (ABU) with a checklist and supporting information. The service water pumps have been modified so that on low system pressure after a time delay, the standby pump will automatically start. This ABU checklist matrix indicates the organizations that are responsible for the preparation of --or for the provision of input to--the identified documentation required by K Basins Operations. Looking at the items in the matrix, it can be seen that the subproject does not bear the sole responsibility for the generation of all these items. Rather, many items are outside of the subproject's scope such that other Spent Nuclear Fuel (SNF) organizations are needed to prepare or perform them (e.g., Training, Procedures, Facility Engineering, Startup, etc.). This supporting document, by virtue of all signatures approving it on the Engineering Data Transmittal, documents an agreement among the various represented disciplines and organizations within the SNF Project as to what is required in terms of documentation to transfer custody to Operations.

  17. Southeastern Environmental Resources Alliance [Status report on completion milestones incorporated in the Cooperative Agreement, and draft start-up plan March 24, 1995

    SciTech Connect (OSTI)

    1995-12-31

    The Southeastern Environmental Resources Alliance (SERA) is a joint effort between the US Department of Energy, the states of Georgia and South Carolina, and Westinghouse Savannah River Company (WSRC). The original proposal for SERA, submitted under the Technology Reinvestment Project (TRP), is based on improving the competitiveness of manufacturers within Georgia and South Carolina by addressing the costs associated with environmental and waste management issues. By using the many technologies available through the national laboratories, universities, the Savannah River Site, and the commercial sector, SERA will improve the competitive position of companies that would otherwise have no access to those technologies. This Start-Up Plan details the steps SERA will take to begin effective operations by June 1, 1995, and will focus on the short-term needs of the program. This plan will serve as a supplement to the original SERA proposal, and will address the major milestones included in the Department of Energy`s Cooperative Agreement. Also documented are the planning processes that SERA will use to ensure the long-term viability of the program. The planning process will include additional work elements that are referenced by the original proposal, but, for the purposes of program start-up, are not immediately addressed. The major milestones and schedules are provided for each goal.

  18. Multiphase soft switched DC/DC converter and active control technique...

    Office of Scientific and Technical Information (OSTI)

    Each primary coil connects a full-bridge circuit comprising two switches on two legs, the primary coil being connected between the switches on each leg, each full-bridge circuit ...

  19. Validation of gamma-ray detection techniques for safeguards monitoring at natural uranium conversion facilities

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

    Dewji, Shaheen A.; Lee, Denise L.; Croft, Stephen; Hertel, Nolan E.; Chapman, Jeffrey Allen; McElroy, Jr., Robert Dennis; Cleveland, S.

    2016-03-28

    Recent IAEA circulars and policy papers have sought to implement safeguards when any purified aqueous uranium solution or uranium oxides suitable for isotopic enrichment or fuel fabrication exists. Under the revised policy, IAEA Policy Paper 18, the starting point for nuclear material under safeguards was reinterpreted, suggesting that purified uranium compounds should be subject to safeguards procedures no later than the first point in the conversion process. In response to this technical need, a combination of simulation models and experimental measurements were employed to develop and validate concepts of nondestructive assay monitoring systems in a natural uranium conversion plant (NUCP).more » In particular, uranyl nitrate (UO2(NO3)2) solution exiting solvent extraction was identified as a key measurement point (KMP), where gamma-ray spectroscopy was selected as the process monitoring tool. The Uranyl Nitrate Calibration Loop Equipment (UNCLE) facility at Oak Ridge National Laboratory was employed to simulate the full-scale operating conditions of a purified uranium-bearing aqueous stream exiting the solvent extraction process in an NUCP. Nondestructive assay techniques using gamma-ray spectroscopy were evaluated to determine their viability as a technical means for drawing safeguards conclusions at NUCPs, and if the IAEA detection requirements of 1 significant quantity (SQ) can be met in a timely way. This work investigated gamma-ray signatures of uranyl nitrate circulating in the UNCLE facility and evaluated various gamma-ray detector sensitivities to uranyl nitrate. These detector validation activities include assessing detector responses to the uranyl nitrate gamma-ray signatures for spectrometers based on sodium iodide, lanthanum bromide, and high-purity germanium detectors. The results of measurements under static and dynamic operating conditions at concentrations ranging from 10–90 g U/L of natural uranyl nitrate are presented. A range of gamma

  20. 9731: It all started here...

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

    However, she continued to study mathematics and physics in the College of Liberal Arts while taking all the statistics courses offered. She graduated in August of 1943. On...