Sample records for reach 30-percent improvement

  1. Over 30{percent} efficient InGaP/GaAs tandem solar cells

    SciTech Connect (OSTI)

    Takamoto, T.; Ikeda, E.; Kurita, H. [Central Research Laboratory, Japan Energy Corporation, 3-17-35 Niizo-Minami, Toda, Saitama 335 (Japan)] [Central Research Laboratory, Japan Energy Corporation, 3-17-35 Niizo-Minami, Toda, Saitama 335 (Japan); Ohmori, M. [Japan Energy Research Center Company, Ltd., 1-11-9 Azabudai, Minato-ku, Tokyo 106 (Japan)] [Japan Energy Research Center Company, Ltd., 1-11-9 Azabudai, Minato-ku, Tokyo 106 (Japan)

    1997-01-01T23:59:59.000Z

    A two-terminal monolithic InGaP/GaAs tandem solar cell with a new efficiency record of 30.28{percent} is realized with a practical large area of 4 cm{sup 2} under one-sun air-mass 1.5 global illumination. We report improvements of the tandem cell performance by introducing a double-hetero (hereafter DH) structure InGaP tunnel junction, in which the InGaP layers are surrounded by high band gap AlInP barriers. The DH structure by AlInP barriers increase the peak current of InGaP tunnel junction. The AlInP barrier directly below the InGaP top cell, which takes the part of a back surface field (hereafter BSF) layer, is found to be considerably effective in reflecting minority carriers in the top cell. The AlInP BSF layer does not only form a high potential barrier but also prevents the diffusion of zinc from a high doped tunnel junction toward the top cell during epitaxial growth. Furthermore, an InGaP tunnel junction reduces the absorption loss, which exists in a GaAs tunnel junction, and increases the photogenerated current in the GaAs bottom cell. {copyright} {ital 1997 American Institute of Physics.}

  2. Improved WIMP-search reach of the CDMS II germanium data

    E-Print Network [OSTI]

    Agnese, R; Asai, M; Balakishiyeva, D; Barker, D; Thakur, R Basu; Bauer, D A; Billard, J; Borgland, A; Bowles, M A; Brandt, D; Brink, P L; Bunker, R; Cabrera, B; Caldwell, D O; Calkins, R; Cerdeño, D G; Chagani, H; Chen, Y; Cooley, J; Cornell, B; Crewdson, C H; Cushman, P; Daal, M; Di Stefano, P C F; Doughty, T; Esteban, L; Fallows, S; Figueroa-Feliciano, E; Godfrey, G L; Golwala, S R; Hall, J; Harris, H R; Hertel, S A; Hofer, T; Holmgren, D; Hsu, L; Huber, M E; Jardin, D; Jastram, A; Kamaev, O; Kara, B; Kelsey, M H; Kennedy, A; Kiveni, M; Koch, K; Leder, A; Loer, B; Asamar, E Lopez; Lukens, P; Mahapatra, R; Mandic, V; McCarthy, K A; Mirabolfathi, N; Moffatt, R A; Oser, S M; Page, K; Page, W A; Partridge, R; Pepin, M; Phipps, A; Prasad, K; Pyle, M; Qiu, H; Rau, W; Redl, P; Reisetter, A; Ricci, Y; Rogers, H E; Saab, T; Sadoulet, B; Sander, J; Schneck, K; Schnee, R W; Scorza, S; Serfass, B; Shank, B; Speller, D; Toback, D; Upadhyayula, S; Villano, A N; Welliver, B; Wilson, J S; Wright, D H; Yang, X; Yellin, S; Yen, J J; Young, B A; Zhang, J

    2015-01-01T23:59:59.000Z

    CDMS II data from the 5-tower runs at the Soudan Underground Laboratory were reprocessed with an improved charge-pulse fitting algorithm. Two new analysis techniques to reject surface-event backgrounds were applied to the 612 kg days germanium-detector WIMP-search exposure. An extended analysis was also completed by decreasing the 10 keV analysis threshold to $\\sim$5 keV, to increase sensitivity near a WIMP mass of 8 GeV/$c^2$. After unblinding, there were zero candidate events above a deposited energy of 10 keV and 6 events in the lower-threshold analysis. This yielded minimum WIMP-nucleon spin-independent scattering cross-section limits of $1.8 \\times 10^{-44}$ and $1.18 \\times 10 ^{-41}$ cm$^2$ at 90\\% confidence for 60 and 8.6 GeV/$c^2$ WIMPs, respectively. This improves the previous CDMS II result by a factor of 2.4 (2.7) for 60 (8.6) GeV/$c^2$ WIMPs.

  3. Driving equitable demand : early lessons from the BetterBuildings Program to access 'hard-to-reach' communities for energy efficiency building improvements

    E-Print Network [OSTI]

    Crauderueff, Robert (Robert Joseph)

    2011-01-01T23:59:59.000Z

    Increasing the energy efficiency of low- to moderate-income and minority-occupied households could significantly reduce energy consumption in the United States. Strategies to access these 'hard to reach' households, however, ...

  4. Energy Savings and Comfort Improvements through Plant- and Operating mode Optimisation Demonstrated by Means of Project Examples

    E-Print Network [OSTI]

    Muller, C.

    More than 40 percent of Europe's primary energy is required for conditioning of buildings. By improving energy efficiency, approximately 30 percent of this energy could be saved. Energy counts for 35 percent of the operating cost and put...

  5. High Performance “Reach” Codes

    E-Print Network [OSTI]

    Edelson, J.

    2011-01-01T23:59:59.000Z

    Jim Edelson New Buildings Institute A Growing Role for Codes and Stretch Codes in Utility Programs Clean Air Through Energy Efficiency November 9, 2011 ESL-KT-11-11-39 CATEE 2011, Dallas, Texas, Nov. 7 ? 9, 2011 New Buildings Institute ESL..., Nov. 7 ? 9, 2011 ?31? Flavors of Codes ? Building Codes Construction Codes Energy Codes Stretch or Reach Energy Codes Above-code programs Green or Sustainability Codes Model Codes ?Existing Building? Codes Outcome-Based Codes ESL-KT-11...

  6. educating, engaging and empowering californians to improve our state's future California Climate

    E-Print Network [OSTI]

    Sadoulet, Elisabeth

    and Resources (BeaR) model, we find that if California improves energy efficiency by just 1 percent per year order #s­3­05 (schwarzenegger 2005) which calls for a 30 percent reduction below business- as on emissions that cause global warming, requires that the California air Resources Board (CaRB) put

  7. REACHING AGREEMENT A Fundamental Task--

    E-Print Network [OSTI]

    Schneider, Fred B.

    REACHING AGREEMENT A Fundamental Task-- Even in Distributed Computer Systems by Fred B. Schneider consists of a collection of computers interconnected by communication channels. The computers are usually that will achieve ByzantineAgreement: Agreement. All nontraitorous generals execute the same action. Validity

  8. Approximating Human Reaching Volumes Using Inverse Kinematics

    E-Print Network [OSTI]

    Rodríguez, Inmaculada

    of reach: standing reach, which is useful in computer animation where virtual humans have to interact. Introduction Virtual Humans are a valuable medium for gaining knowledge and understanding about the human bodyApproximating Human Reaching Volumes Using Inverse Kinematics I. Rodrígueza , M. Peinadoa , R

  9. Low-Interest Rates Entice Philadelphians to Reach for the Stars...

    Energy Savers [EERE]

    Low-Interest Rates Entice Philadelphians to Reach for the Stars For many Philadelphia area residents, getting a loan for home energy efficiency improvements is a no brainer...

  10. Limitations of extended reach drilling in deepwater

    E-Print Network [OSTI]

    Akinfenwa, Akinwunmi Adebayo

    2000-01-01T23:59:59.000Z

    As the worldwide search for hydrocarbons continues into the deepwater of the oceans, drilling extended reach wells have helped to drain the fields in the most cost effective way, thus providing the oil and gas industry the cushion to cope...

  11. The smallest refrigerators can reach maximal efficiency

    E-Print Network [OSTI]

    Paul Skrzypczyk; Nicolas Brunner; Noah Linden; Sandu Popescu

    2011-12-02T23:59:59.000Z

    We investigate whether size imposes a fundamental constraint on the efficiency of small thermal machines. We analyse in detail a model of a small self-contained refrigerator consisting of three qubits. We show analytically that this system can reach the Carnot efficiency, thus demonstrating that there exists no complementarity between size and efficiency.

  12. Reaching Wider South West Wales Partnership Strategy

    E-Print Network [OSTI]

    Martin, Ralph R.

    1 Reaching Wider South West Wales Partnership Strategy 2011-14 #12;2 `Poverty is when someone patterns, customs and activities.' Joseph Rowntree Foundation Monitoring poverty and social exclusion in Communities First areas of high relative poverty. It interlocks with higher education strategic approaches

  13. Table B30. Percent of Floorspace Lit When Open, Number of Buildings and Floorspa

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are nowTotal" (Percent) Type: Sulfur Content API GravityDakota" "Fuel, quality", 2013,Iowa"Dakota" ,"FullWestQuantity of2".9. Percent of.0.

  14. Strategies for In-Cylinder Reductions to Reach Bin 2 and LEV...

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

    Strategies for In-Cylinder Reductions to Reach Bin 2 and LEVIII Air System Management to Reduce NOx and PM and Improve Fuel Economy Poster Location P-03 Robert Czarnowski, John...

  15. Spallation Neutron Source reaches megawatt power

    ScienceCinema (OSTI)

    Dr. William F. Brinkman

    2010-01-08T23:59:59.000Z

    The Department of Energy's Spallation Neutron Source (SNS), already the world's most powerful facility for pulsed neutron scattering science, is now the first pulsed spallation neutron source to break the one-megawatt barrier. "Advances in the materials sciences are fundamental to the development of clean and sustainable energy technologies. In reaching this milestone of operating power, the Spallation Neutron Source is providing scientists with an unmatched resource for unlocking the secrets of materials at the molecular level," said Dr. William F. Brinkman, Director of DOE's Office of Science.

  16. Reach Energy, LLC | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty Edit with form History Facebook iconQuito,Jump to:RadiantRappaportRayReEnergyReach

  17. NERSC Reaches Out to Women in Computing

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes |IsLove Your1AllocationsNOVAPlayed Key Role in NobelReaches Out to

  18. Reach and get capability in a computing environment

    DOE Patents [OSTI]

    Bouchard, Ann M. (Albuquerque, NM); Osbourn, Gordon C. (Albuquerque, NM)

    2012-06-05T23:59:59.000Z

    A reach and get technique includes invoking a reach command from a reach location within a computing environment. A user can then navigate to an object within the computing environment and invoke a get command on the object. In response to invoking the get command, the computing environment is automatically navigated back to the reach location and the object copied into the reach location.

  19. Increasing TLB reach using TCAM cells 

    E-Print Network [OSTI]

    Kumar, Anuj

    2005-02-17T23:59:59.000Z

    We propose dynamic aggregation of virtual tags in TLB to increase its coverage and improve the overall miss ratio during address translation. Dynamic aggregation exploits both the spatial and temporal locality inherent in ...

  20. Expanded "Green Button" Will Reach Federal Agencies and More...

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

    "Green Button" Will Reach Federal Agencies and More American Energy Consumers Expanded "Green Button" Will Reach Federal Agencies and More American Energy Consumers December 6,...

  1. DOE-Sponsored Syngas Cleanup Demonstration Project Reaches Development...

    Energy Savers [EERE]

    DOE-Sponsored Syngas Cleanup Demonstration Project Reaches Development Milestone DOE-Sponsored Syngas Cleanup Demonstration Project Reaches Development Milestone February 19, 2015...

  2. The Smart Grid Experience: Applying Results, Reaching Beyond...

    Energy Savers [EERE]

    Grid Experience: Applying Results, Reaching Beyond - Summary of Conference Proceedings (December 2014) The Smart Grid Experience: Applying Results, Reaching Beyond - Summary of...

  3. Comparison of Robot-Assisted Reaching to Free Reaching in Promoting Recovery

    E-Print Network [OSTI]

    Reinkensmeyer, David J.

    . To date, ten subjects have completed twenty-four therapy sessions over an eight-week period, randomized to either a robot exercise group (N = 6) or non-robotic exercise group (N = 4). For the robot exercise group, the ARM Guide mechanically assisted in reaching to a series of targets. For the non-robotic group

  4. Reaching 10 ms single photon lifetimes for superconducting aluminum cavities

    E-Print Network [OSTI]

    M. Reagor; Hanhee Paik; G. Catelani; L. Sun; C. Axline; E. Holland; I. M. Pop; N. A. Masluk; T. Brecht; L. Frunzio; M. H. Devoret; L. I. Glazman; R. J. Schoelkopf

    2013-05-22T23:59:59.000Z

    Three-dimensional microwave cavities have recently been combined with superconducting qubits in the circuit quantum electrodynamics (cQED) architecture. These cavities should have less sensitivity to dielectric and conductor losses at surfaces and interfaces, which currently limit the performance of planar resonators. We expect that significantly (>10^3) higher quality factors and longer lifetimes should be achievable for 3D structures. Motivated by this principle, we have reached internal quality factors greater than 0.5x10^9 and intrinsic lifetimes of 0.01 seconds for multiple aluminum superconducting cavity resonators at single photon energies and millikelvin temperatures. These improvements could enable long lived quantum memories with submicrosecond access times when strongly coupled to superconducting qubits.

  5. Drilling engineering package used for extended reach project

    SciTech Connect (OSTI)

    Chapman, P. (BP Exploration, Sunbury (United Kingdom)); Good, A. (Baker Hughes Inteq, Houston, TX (United States))

    1995-02-20T23:59:59.000Z

    Extended reach drilling can improve the economics of some field developments by minimizing the number of facilities required to access remote reserves. The technique requires detailed engineering design and monitoring, however, to minimize the risk of operating at the limits of drilling equipment. Working as a team over the past 4 years, BP Exploration (BPX) and Baker Hughes Inteq have developed an integrated drilling engineering package for the planning, monitoring, and review of well construction data. The drilling engineering application platform (DEAP) is now used by BP Exploration worldwide for the integrated engineering design, monitoring, and review of its wells. These engineering applications are linked together via a data base and drilling reporting system. Integration between rig site reporting and the engineering applications allows the current drilling operation to be analyzed at the touch of a single computer button. DEAP also provides links to commercially available software packages. This facility, along with its graphical user interface, encourages and simplifies the use of engineering tools at the rig site. The full capabilities of DEAP can perhaps be seen as four key functions necessary for successful well bore construction management.

  6. New Stream-reach Development (NSD) Final Report | Department...

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

    to help individuals and organizations evaluate the feasibility of developing new hydropower sources in the United States. New Stream-reach Development Report More Documents &...

  7. Optic Ataxia: From Balint's Syndrome to the Parietal Reach Region

    E-Print Network [OSTI]

    Andersen, Richard

    Neuron Review Optic Ataxia: From Balint's Syndrome to the Parietal Reach Region Richard A. Andersen@vis.caltech.edu http://dx.doi.org/10.1016/j.neuron.2014.02.025 Optic ataxia is a high-order deficit in reaching's syndrome that also includes attentional and gaze disorders. Aspects of optic ataxia are misreaching

  8. RESEARCH ARTICLE Vestibular contribution to the planning of reach trajectories

    E-Print Network [OSTI]

    Haslwanter, Thomas

    have applied artificial force fields while per- forming reaching movements when subjects held the han- dle of a robotic arm (Shadmehr and Mussa-Ivaldi 1994). These studies indicate that humans rapidly inertial forces. Human subjects reached in darkness to a remem- bered target 33 cm distant. Subjects were

  9. Global Installed Capacity of Coal Fired Power Generation to Reach...

    Open Energy Info (EERE)

    Global Installed Capacity of Coal Fired Power Generation to Reach 2,057.6 GW by 2019 Home > Groups > Increase Natural Gas Energy Efficiency John55364's picture Submitted by...

  10. Wind Turbine Inspection Technology Reaches New Heights | GE Global...

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

    Wind Turbine Inspection Technology Reaches New Heights Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new window) Click to share (Opens in new...

  11. anas crecca reach: Topics by E-print Network

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

    Angelo 380 "Reaching the Unreached": (Un)Making an Inclusive and World-Class Delhi Texas A&M University - TxSpace Summary: low income areas in the city-state. The slogan of...

  12. Milestone Reached: New Process Reduces Cost and Risk of Biofuel...

    Energy Savers [EERE]

    Addthis Related Articles Milestone Reached: New Process Reduces Cost and Risk of Biofuel Production from Bio-Oil Upgrading Refining Bio-Oil alongside Petroleum Why Bio-Oil Turns...

  13. Molecular Engineering of Conjugated Polymers to Reach Higher...

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

    Engineering of Conjugated Polymers to Reach Higher Efficiency "Plastic" Solar Cells November 12, 2010 at 3pm36-428 Wei You University of North Carolina you.wei001 abstract: The...

  14. Biomass Power Generation Market Capacity is Estimated to Reach...

    Open Energy Info (EERE)

    Energy Concerns to Push Global Market to Grow at 8.1% CAGR from 2013 to 2019 Oil Shale Market is Estimated to Reach USD 7,400.70 Million by 2022 more Group members (32)...

  15. MOAB PROJECT REACHES SIGNIFICANT MILESTONE | Department of Energy

    Office of Environmental Management (EM)

    REACHES SIGNIFICANT MILESTONE August 1, 2011 - 12:00pm Addthis View of the mill tailings pile at the MOAB site, looking east. View of the mill tailings pile at the MOAB site,...

  16. Kick circulation analysis for extended reach and horizontal wells

    E-Print Network [OSTI]

    Long, Maximilian Mark

    2005-02-17T23:59:59.000Z

    KICK CIRCULATION ANALYSIS FOR EXTENDED-REACH AND HORIZONTAL WELLS A Thesis by MAXIMILIAN M. LONG Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE December 2004 Major Subject: Petroleum Engineering KICK CIRCULATION ANALYSIS FOR EXTENDED-REACH AND HORIZONTAL WELLS A Thesis by MAXIMILIAN M. LONG Submitted...

  17. Extraction of Plutonium into 30 Percent Tri-Butyl Phosphate from Nitric Acid Solution Containing Fluoride, Aluminum, and Boron

    SciTech Connect (OSTI)

    Kyser, E.A.

    2000-01-06T23:59:59.000Z

    This work consists of experimental batch extraction data for plutonium into 30 volume-percent tri-butyl phosphate at ambient temperature from such a solution matrix and a model of this data using complexation constants from the literature.

  18. Telerobotic operation of structurally flexible, long-reach manipulators

    SciTech Connect (OSTI)

    Kwon, D.S.; Hwang, D.H.; Babcock, S.M.

    1994-09-01T23:59:59.000Z

    As a part of the Department of Energy`s Environmental Restoration and Waste Management Program, long-reach manipulators are being considered for the retrieval of waste from large storage tanks. Long-reach manipulators may have characteristics significantly different from those of typical industrial robots because of the flexibility of long links needed to cover the large workspace. To avoid structural vibrations during operation, control algorithms employing various types of shaping filters were investigated. A new approach that uses embedded simulation was developed and compared with others. In the new approach, generation of joint trajectories considering link flexibility was also investigated.

  19. Reach set computation using optimal control \\Lambda Pravin Varaiya

    E-Print Network [OSTI]

    Varaiya, Pravin

    Reach set computation using optimal control \\Lambda Pravin Varaiya Department of Electrical based on the Pontryagin maximum principle of optimal control theory. The approach is elaborated for linear systems, and it may prove useful for more general continuous­variable systems. 1 Introduction

  20. Japan, EU reach basic agreement over ITER The Yomiuri Shimbun

    E-Print Network [OSTI]

    Japan, EU reach basic agreement over ITER The Yomiuri Shimbun The government and the European Union to the unsuccessful candidate country. Japan and France, the EU's candidate, have been bidding to host the facility bidder's country. The ITER project participants--Japan, China, the EU, Russia, South Korea and the United

  1. The reach of the ATLAS experiment in SUSY parameter space

    E-Print Network [OSTI]

    Janet Dietrich

    2009-10-29T23:59:59.000Z

    Already with very first data, the ATLAS experiment should be sensitive to a SUSY signal well beyond the regions explored by the Tevatron. We present a detailed study of the ATLAS discovery reach in the parameter space for various SUSY models. The expected uncertainties on the background estimates are taken ito account.

  2. Patterns of Arm Muscle Activation Involved in Octopus Reaching Movements

    E-Print Network [OSTI]

    Hochner, Binyamin

    (EMG)] was measured together with the kinematics of reaching movements. The traveling bend is associated with a propagat- ing wave of muscle activation, with maximal muscle activation slightly preceding with the kinematic variables (velocities and accelerations) re- veals that a significant part of the kinematic

  3. TOWARDS REACHING CONSENSUS IN THE DETERMINATION OF PHOTOVOLTAICS CAPACITY CREDIT

    E-Print Network [OSTI]

    Perez, Richard R.

    , 251 Fuller Rd Albany, NY, 12203 Perez@asrc.cestm.albany,edu Mike Taylor Solar Electric Power effort to reach consensus on the notion of capacity credit for solar power electrical generation capacity or capacity credit of a power plant quantifies the output of a power plant that effectively

  4. Reaching optimally over the workspace: a machine learning approach

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Control (HMC) properties [20], [19], [3]. Recently, [13] proposed a model of human reaching movement based-Critic (NAC) and its episodic variant eNAC [11] have been successfully applied to complex robotics problems Abstract--Recent theories of Human Motor Control explain our outstanding coordination capabilities

  5. THOMASSIN et al.: IDENTIFICATION OF A RIVER REACH BY A BAYESIAN APPROACH 1 Identification of a Managed River Reach

    E-Print Network [OSTI]

    Boyer, Edmond

    -delay estimation, of a river reach managed to produce hydroelectric power. Difficulties lie in the obligation risks or fall-off in hydroelectric power production, the implementation of experimental protocols, the control stabilization [13]. This is particularly true for cascaded systems like run-of-river hydroelectric

  6. Has the world economy reached its globalization limit?

    E-Print Network [OSTI]

    Miskiewicz, Janusz

    2009-01-01T23:59:59.000Z

    The economy globalization measure problem is discussed. Four macroeconomic indices of twenty among the "richest" countries are examined. Four types of "distances" are calculated.Two types of networks are next constructed for each distance measure definition. It is shown that the globalization process can be best characterised by an entropy measure, based on entropy Manhattan distance. It is observed that a globalization maximum was reached in the interval 1970-2000. More recently a deglobalization process is observed.

  7. Airborne particles smuggle pollutants to far reaches of globe...

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

    published in Environmental Science & Technology will help scientists improve atmospheric air-quality and pollution transport models. Pacific Northwest National Laboratory Senior...

  8. DOE Reaches $1.9M Settlement | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the YouTube| Department of Energy81stEnforcement Effort with|Residential2020DOE Reaches

  9. MHK Projects/Third Reach District | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, searchOfRose Bend < MHK Projects Jump to: navigation,Thames atReach District

  10. Clean Cities Reaches Across the Sea | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny: Theof"Wave the White Flag" | DepartmentCladding12-00123Reaches Across

  11. To: UT Arlington Faculty and Staff From: IN-Reach Mentor Program

    E-Print Network [OSTI]

    Texas at Arlington, University of

    To: UT Arlington Faculty and Staff From: IN-Reach Mentor Program Re: IN-Reach Mentor Program Announcement Greetings Maverick Professionals: We are excited to announce our new IN-Reach Mentor Program! We

  12. Reach the Bottom Line of the Sbottom Search

    SciTech Connect (OSTI)

    Alvarez, Ezequiel; Bai, Yang

    2012-05-22T23:59:59.000Z

    We propose a new search strategy for directly-produced sbottoms at the LHC with a small mass splitting between the sbottom and its decayed stable neutralino. Our search strategy is based on boosting sbottoms through an energetic initial state radiation jet. In the final state, we require a large missing transverse energy and one or two b-jets besides the initial state radiation jet. We also define a few kinematic variables to further increase the discovery reach. For the case that the sbottom mainly decays into the bottom quark and the stable neutralino, we have found that even for a mass splitting as small as 10 GeV sbottoms with masses up to around 400 GeV can be excluded at the 95% confidence level with 20 inverse femtobarn data at the 8 TeV LHC.

  13. Higher harmonics increase LISA's mass reach for supermassive black holes

    E-Print Network [OSTI]

    K. G. Arun; Bala R. Iyer; B. S. Sathyaprakash; Siddhartha Sinha

    2007-06-05T23:59:59.000Z

    Current expectations on the signal to noise ratios and masses of supermassive black holes which the Laser Interferometer Space Antenna (LISA) can observe are based on using in matched filtering only the dominant harmonic of the inspiral waveform at twice the orbital frequency. Other harmonics will affect the signal-to-noise ratio of systems currently believed to be observable by LISA. More significantly, inclusion of other harmonics in our matched filters would mean that more massive systems that were previously thought to be {\\it not} visible in LISA should be detectable with reasonable SNRs. Our estimates show that we should be able to significantly increase the mass reach of LISA and observe the more commonly occurring supermassive black holes of masses $\\sim 10^8M_\\odot.$ More specifically, with the inclusion of all known harmonics LISA will be able to observe even supermassive black hole coalescences with total mass $\\sim 10^8 M_\\odot (10^9M_\\odot)$ (and mass-ratio 0.1) for a low frequency cut-off of $10^{-4}{\\rm Hz}$ $(10^{-5}{\\rm Hz})$ with an SNR up to $\\sim 60$ $(\\sim 30)$ at a distance of 3 Gpc. This is important from the astrophysical viewpoint since observational evidence for the existence of black holes in this mass range is quite strong and binaries containing such supermassive black holes will be inaccessible to LISA if one uses as detection templates only the dominant harmonic.

  14. Hydrodynamic Simulation of the Columbia River, Hanford Reach, 1940--2004

    SciTech Connect (OSTI)

    Waichler, Scott R.; Perkins, William A.; Richmond, Marshall C.

    2005-06-15T23:59:59.000Z

    Many hydrological and biological problems in the Columbia River corridor through the Hanford Site require estimates of river stage (water surface elevation) or river flow and velocity. Systematic collection of river stage data at locations in the Hanford Reach began in 1991, but many environmental projects need river stage information at unmeasured locations or over longer time periods. The Modular Aquatic Simulation System 1D (MASS1), a one-dimensional, unsteady hydrodynamic and water quality model, was used to simulate the Columbia River from Priest Rapids Dam to McNary Dam from 1940 to 2004, providing estimates of water surface elevation, volumetric flow rate, and flow velocity at 161 locations on the Hanford Reach. The primary input data were bathymetric/topographic cross sections of the Columbia River channel, flow rates at Priest Rapids Dam, and stage at McNary Dam. Other inputs included Yakima River and Snake River inflows. Available flow data at a gaging station just below Priest Rapids Dam was mean daily flow from 1940 to 1986 and hourly thereafter. McNary dam was completed in 1957, and hourly stage data are available beginning in 1975. MASS1 was run at an hourly timestep and calibrated and tested using 1991--2004 river stage data from six Hanford Reach locations (areas 100B, 100N, 100D, 100H, 100F, and 300). Manning's roughness coefficient in the Reach above each river recorder location was adjusted using an automated genetic algorithm and gradient search technique in three separate calibrations, corresponding to different data subsets, with minimization of mean absolute error as the objective. The primary calibration was based on 1999, a representative year, and included all locations. The first alternative calibration also used all locations but was limited in time to a high-flow period during spring and early summer of 1997. The second alternative calibration was based on 1999 and included only 300 Area stage data. Model goodness-of-fit for all years with data was high in the primary calibration and indicated little bias caused by selecting 1999. The alternative calibrations led to improved goodness-of-fit for their limited time and locations, but degraded goodness-of-fit overall. Overall, the simulations were very accurate and even highlighted some probable data problems, as evidenced by systematic shifts in the data. Further improvements in simulating the historic period would depend on correcting these inferred data problems. For all years and locations, the mean absolute error in the primary calibration was 14.8 cm, the mean error was 1 mm, and model efficiency was 0.988. The MASS1 output for 1940--2004 can be used to reconstruct historical river elevations at Hanford or to build scenarios of future river elevations for solving environmental problems such as groundwater-river interaction or fish habitat inventories. Model output and additional processing services are available from the authors. Longer-term scenarios extending more than a few decades from now should also consider the impacts of climate change and reservoir operation change. Once defined, these impacts could be used to drive new simulations with MASS1.

  15. Multi-Year Agreement for Universities for 2006-07 to 2008-09 As part of the 2005 Ontario Budget, the government introduced "Reaching Higher: The

    E-Print Network [OSTI]

    will provide a cumulative investment of $6.2B in Ontario's post-secondary education and training system by 2009-10. The government's goal is to use the Reaching Higher investments to improve the access, quality and accountability grants. The Ministry remains committed to the goal of reducing and consolidating accountability

  16. Evaluation of Macroinvertebrate Communities and Habitat for Selected Stream Reaches at Los Alamos National Laboratory

    SciTech Connect (OSTI)

    L.J. Henne; K.J. Buckley

    2005-08-12T23:59:59.000Z

    This is the second aquatic biological monitoring report generated by Los Alamos National Laboratory's (LANL's) Water Quality and Hydrology Group. The study has been conducted to generate impact-based assessments of habitat and water quality for LANL waterways. The monitoring program was designed to allow for the detection of spatial and temporal trends in water and habitat quality through ongoing, biannual monitoring of habitat characteristics and benthic aquatic macroinvertebrate communities at six key sites in Los Alamos, Sandia, Water, Pajarito, and Starmer's Gulch Canyons. Data were collected on aquatic habitat characteristics, channel substrate, and macroinvertebrate communities during 2001 and 2002. Aquatic habitat scores were stable between 2001 and 2002 at all locations except Starmer's Gulch and Pajarito Canyon, which had lower scores in 2002 due to low flow conditions. Channel substrate changes were most evident at the upper Los Alamos and Pajarito study reaches. The macroinvertebrate Stream Condition Index (SCI) indicated moderate to severe impairment at upper Los Alamos Canyon, slight to moderate impairment at upper Sandia Canyon, and little or no impairment at lower Sandia Canyon, Starmer's Gulch, and Pajarito Canyon. Habitat, substrate, and macroinvertebrate data from the site in upper Los Alamos Canyon indicated severe impacts from the Cerro Grande Fire of 2000. Impairment in the macroinvertebrate community at upper Sandia Canyon was probably due to effluent-dominated flow at that site. The minimal impairment SCI scores for the lower Sandia site indicated that water quality improved with distance downstream from the outfall at upper Sandia Canyon.

  17. Capability Improvement

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

    Trinity NERSC-8 Capability Improvement Trinity NERSC-8 Capability Improvement As stated in Section 3.5 of the Technical Requirements, The performance of the ASC and NERSC...

  18. Overcoming Technical and Market Barriers for Distributed Wind Applications: Reaching the Mainstream; Preprint

    SciTech Connect (OSTI)

    Rhoads-Weaver, H.; Forsyth, T.

    2006-07-01T23:59:59.000Z

    This paper describes how the distributed wind industry must overcome hurdles including system costs and interconnection and installation restrictions to reach its mainstream market potential.

  19. Entrainment of Dungeness Crab in the Desdemona Shoals Reach of the Lower Columbia River Navigation Channel

    SciTech Connect (OSTI)

    Pearson, Walter H.; Kohn, Nancy P.; Skalski, J. R.

    2006-09-30T23:59:59.000Z

    Proposed dredging of the Columbia River has raised concerns about related impacts on Dungeness crab in the Columbia River Estuary (CRE). This study follows two major efforts, sponsored by the Portland District of the U. S. Army Corps of Engineers (USACE) to quantify the number of crabs entrained by a hopper dredge working in the CRE. From June 2002 through September 2002, Pacific Northwest National Laboratory (PNNL) conducted direct measurements of crab entrainment in the CRE from the mouth of the Columbia River (MCR, river mile -3 to +3) upriver as far as Miller Sands (river mile 21 to 24). These studies constituted a major step in quantifying crab entrainment in the CRE, and allowed statistically bounded projections of adult equivalent loss (AEL) for Dungeness crab populations under a range of future construction dredging and maintenance dredging scenarios (Pearson et al. 2002, 2003). In 2004, PNNL performed additional measurements to improve estimates of crab entrainment at Desdemona Shoals and at Flavel Bar, a reach near Astoria that had not been adequately sampled in 2002 (Figure 1). The 2004 data were used to update the crab loss projections for channel construction to 43 ft MLLW. In addition, a correlation between bottom salinity and adult (age 2+ and 3+, >100 mm carapace width) crab entrainment was developed using 2002 data, and elaborated upon with the 2004 data. This crab salinity model was applied to forecasting seasonal (monthly) entrainment rates and AEL using seasonal variations in salinity (Pearson et al. 2005). In the previous studies, entrainment rates in Desdemona Shoals were more variable than in any of the other reaches. Pearson et al. (2005) concluded that ?the dynamics behind the variable entrainment rates at Desdemona Shoals are not fully understood,? as well as finding that juvenile crab entrainment was not significantly correlated with salinity as it was for older crab. The present study was undertaken to address the question of whether the high age 1+ entrainment rate at Desdemona Shoals in June 2002 unusual, or would it be observed again under similar conditions? PNNL and USACE personnel directly measured crab entrainment by the USACE hopper dredge Essayons working in Desdemona Shoals in June 2006. In addition to quantifying crab entrainment of all age classes, bottom salinity was directly measured in as many samples as possible, so that the relationship between crab entrainment and salinity could be further evaluated. All 2006 data were collected and analyzed in a manner consistent with the previous entrainment studies (Pearson et al. 2002, 2003, 2005).

  20. In 1991 UC Irvine adopted standards to outperform California's Title 24 Energy Efficiency Standards by 30 percent, use 100 percent reclaimed water, CO2 sensing for

    E-Print Network [OSTI]

    Rose, Michael R.

    in Sacramento. · Nine buildings at UC Irvine bear the U.S. Green Building Council's Leadership in Energy· In 1991 UC Irvine adopted standards to outperform California's Title 24 Energy Efficiency, and no rainforest hardwoods · UC Irvine's Smart Labs Initiative, which reduces energy consumption in new

  1. The role (relationship) of visual and motor imagery in estimating reach

    E-Print Network [OSTI]

    Ammar, Diala Fouad

    2007-09-17T23:59:59.000Z

    The primary intent of this study was to explore fundamental questions about the role and relationship between motor (MI) and visual (VI) imagery within the context of estimating reach. Experiment 1 examined and compared VI and MI tasks under matched...

  2. The Discovery reach of $CP$ violation in neutrino oscillation with non-standard interaction effects

    E-Print Network [OSTI]

    Rahman, Zini; Adhikari, Rathin

    2015-01-01T23:59:59.000Z

    We have studied the $CP$ violation discovery reach in neutrino oscillation experiment with superbeam, neutrino factory and monoenergetic neutrino beam. For NSI satisfying model-dependent bound for shorter baselines (like CERN-Fr\\'ejus set-up ) there is insignificant effect of NSI on the the discovery reach of $CP$ violation due to $\\delta$. Particularly, for superbeam and neutrino factory we have also considered relatively longer baselines for which there could be significant NSI effects on $CP$ violation discovery reach for higher allowed values of NSI. For monoenergetic beam only shorter baselines are considered to study $CP$ violation with different nuclei as neutrino sources. Interestingly for non-standard interactions - $\\varepsilon_{e\\mu}$ and $\\varepsilon_{e\\tau}$ of neutrinos with matter during propagation in longer baselines in superbeam, there is possibility of better discovery reach of $CP$ violation than that with only Standard Model interactions of neutrinos with matter. For complex NSI we have s...

  3. Maintenance decision making tool reaching a compromise between maintainability and reliability performances

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    or scheduled preventive maintenance) to condition-based or predictive maintenance strategies preventive maintenance actions, in the sense that planned production stoppages within this temporal horizonMaintenance decision making tool reaching a compromise between maintainability and reliability

  4. Blohm, Keith, Crawford: Decoding the cortical transformations for visually-guided reaching in 3D space

    E-Print Network [OSTI]

    Blohm, Gunnar

    on the Optimal Linear Estimator (OLE) read-out (Salinas and Abbott, 1994). This analysis determined our choice for geometrically accurate visually guided reaching in 3-D space. Journal of Vision 7: 1-22. Salinas E, Abbott LF

  5. How-Models of Human Reaching Movements in the Context of Everyday Manipulation Activities

    E-Print Network [OSTI]

    Cremers, Daniel

    Nyga, Moritz Tenorth and Michael Beetz Intelligent Autonomous Systems, Technische Universit¨at M¨unchen {nyga, tenorth, beetz}@cs.tum.edu Abstract-- We present a system for learning models of human reaching

  6. Accelerating the Adoption of Second-Tier Reach Standards forApplicable Appliance Products in China

    SciTech Connect (OSTI)

    Lin, Jiang; Fridley, David

    2007-03-01T23:59:59.000Z

    The minimum energy efficiency standards program for household appliances in China was initiated in 1989. Since 1996, CLASP and its implementing partner, LBNL, have assisted China in developing 11 minimum energy performance standards (MEPS) for 9 products and endorsement labels for 11 products including: refrigerators; air conditioners; clothes washers; televisions; printers; computers; monitors; fax machines; copiers; DVD/VCD players; external power supplies; and set-top boxes (under development). Before 2003, China's traditional approach to standards development involved small increases in efficiency requirements for implementation within 6 months of a standard's approval. Since 2003, China has adopted a new approach in setting MEPS. This new approach involves the development of two tiers of standards--one for initial implementation and a second tier at a more aggressive level of energy efficiency for implementation three to five years later. The second-tier standard is also referred to as a 'reach standard'. Reach standards have now been developed in China for: color TVs; refrigerators; air conditioners; and external power supplies. This report is presented in five sections. After the introduction in Section 1, Section 2 analyzes the distribution of the efficiency of refrigerators and air-conditioners in China based on data collected by the China Energy Label Center for the mandatory energy information label program. The results provide an assessment of the adoption of reach standards for these two products. Section 3 summarizes on-going collaborations with Shanghai related to early local adoption of reach standards, and presents both the impact and an analysis of barriers to the local adoption of reach standard for air-conditioners. Section 4 offers suggestions for local governments on how to move forward in adopting reach standards in their localities and concludes with a summary of the results and a plan for developing local capacity in order to achieve success in adopting reach standards.

  7. Redd Site Selection and Spawning Habitat Use by Fall Chinook Salmon, Hanford Reach, Columbia River : Final Report 1995 - 1998.

    SciTech Connect (OSTI)

    Geist, David R.

    1999-05-01T23:59:59.000Z

    This report summarizes results of research activities conducted from 1995 through 1998 on identifying the spawning habitat requirements of fall chinook salmon (Oncorhynchus tshawytscha) in the Hanford Reach of the Columbia River. The project investigated whether traditional spawning habitat models could be improved in order to make better predictions of available habitat for fall chinook salmon in the Snake River. Results suggest models could be improved if they used spawning area-specific, rather than river-specific, spawning characteristics; incorporated hyporheic discharge measurements; and gave further consideration to the geomorphic features that are present in the unconstrained segments of large alluvial rivers. Ultimately the recovery of endangered fall chinook salmon will depend on how well we are able to recreate the characteristics once common in alluvial floodplains of large rivers. The results from this research can be used to better define the relationship between these physical habitat characteristics and fall chinook salmon spawning site selection, and provide more efficient use of limited recovery resources. This report is divided into four chapters which were presented in the author's doctoral dissertation which he completed through the Department of Fisheries and Wildlife at Oregon State University. Each of the chapters has been published in peer reviewed journals or is currently under review. Chapter one is a conceptual spawning habitat model that describes how geomorphic features of river channels create hydraulic processes, including hyporheic flows, that influence where salmon spawn in unconstrained reaches of large mainstem alluvial rivers. Chapter two describes the comparison of the physical factors associated with fall chinook salmon redd clusters located at two sites within the Reach. Spatial point pattern analysis of redds showed that redd clusters averaged approximately 10 hectares in area and their locations were consistent from year to year. The tendency to spawn in clusters suggests fall chinook salmon's use of spawning habitat is highly selective. Hydraulic characteristics of the redd clusters were significantly different than the habitat surrounding them. Velocity and lateral slope of the river bottom were the most important habitat variables in predicting redd site selection. While these variables explained a large proportion of the variance in redd site selection (86 to 96%), some unmeasured factors still accounted for a small percentage of actual spawning site selection. Chapter three describes the results from an investigation into the hyporheic characteristics of the two spawning areas studied in chapter two. This investigation showed that the magnitude and chemical characteristics of hyporheic discharge were different between and within two spawning areas. Apparently, fall chinook salmon used chemical and physical cues from the discharge to locate spawning areas. Finally, chapter four describes a unique method that was developed to install piezometers into the cobble bed of the Columbia River.

  8. Volumetric reach comparison of possible end-effectors for the articulated transporter and manipulator system

    SciTech Connect (OSTI)

    Kress, R.L.; Babcock, S.M.; Hamel, W.R. (Oak Ridge National Lab., TN (USA)); Bills, K.C. (Martin Marietta Energy Systems, Inc., Oak Ridge, TN (USA))

    1990-01-01T23:59:59.000Z

    The goal of this research was to investigate the performance of the Articulated Transporter and Manipulator System (ATMS) during various tasks relative to the choice of wrist/end-effector configuration. The approach taken was to generate computer graphics-aided three-dimensional interactive application (CATIA) system-based models of four wrist/end-effector combinations and consider the volumetric reach of each of these configurations based on the capacity of the ATMS. The results indicate that a simple, lightweight end-effector provides a greater volumetric reach. The greatest variation presented herein is {approximately}40% when comparing a 7-degree-of-freedom (DOF) dexterous arm with a simple 3-DOF arm; however, the benefit of increasing volumetric reach by only 40% by using a simple arm may be outweighed by the loss of dexterity. 10 refs., 5 figs., 3 tabs.

  9. Direct ventilation of the North Pacific did not reach the deep ocean during the last deglaciation

    E-Print Network [OSTI]

    Long, Bernard

    Pacific core sites between 2710 and 3640 m, are incon- sistent with local ventilation of the lower halfDirect ventilation of the North Pacific did not reach the deep ocean during the last deglaciation S ventilated by dense waters formed in the subarctic Pacific during Heinrich Stadial 1 (HS1) of the early

  10. Calibration of Visually Guided Reaching Is Driven by Error-Corrective Learning and Internal Dynamics

    E-Print Network [OSTI]

    Sabes, Philip

    Calibration of Visually Guided Reaching Is Driven by Error-Corrective Learning and Internal Submitted 22 August 2006; accepted in final form 16 December 2006 Cheng S, Sabes PN. Calibration of visually­3069, 2007. First published January 3, 2007; doi:10.1152/ jn.00897.2006. The sensorimotor calibration

  11. IIT Architecture NOWNESS is our approach. One that attempts to reach a di-

    E-Print Network [OSTI]

    Heller, Barbara

    NOWNESS 2013 2014 IIT Architecture Chicago #12;NOWNESS is our approach. One that attempts to reach a di- verse audience; one that demonstrates architecture's multidis- ciplinary character; and one discipline. Architecture, today, is in demand. Now is the moment, and Chicago is the metropo- lis, in which

  12. Innovative Telemetry System Will Help Tap Hard-to-Reach Natural Gas Resources

    Broader source: Energy.gov [DOE]

    The commercialization of an innovative telemetry communications system developed through a U.S. Department of Energy research program will help U.S. producers tap previously hard-to-reach natural gas resources deep underground, resulting in access to additional supplies that will help enhance national energy security.

  13. Extending the Reach of a Rod Injected into a Cylinder Through Distributed Vibration

    E-Print Network [OSTI]

    Reis, Pedro Miguel

    of rods fo- cused on the case of compression of a fixed length of rod inside of a frictionless cylinder [7Extending the Reach of a Rod Injected into a Cylinder Through Distributed Vibration Jay T. MIller. The injection speed (be- low a critical value that we uncover), as well as the ampli- tude and frequency

  14. Co-Tenancy Agreement This agreement was reached on _________________________________, 20_______ between

    E-Print Network [OSTI]

    Suzuki, Masatsugu

    Co-Tenancy Agreement This agreement was reached on _________________________________, 20:___________________________________ Rent amount:______________________ These persons shall from now on in this agreement be called "Co: 1. Lease and Rules: Each co-tenant agrees to abide by the terms of any lease or agreement entered

  15. Reach Zones Try this experiment: Place one of your arms out in

    E-Print Network [OSTI]

    , doc- ument stand, folders, staplers, books and other resources that you access regularly. The Tertiary, binders and office resources. Workplace Health and Wellness Monthly Issue Includes Cholesterol Reach Zones oil Olive oil contains antioxidants that can lower your "bad" (LDL) cholesterol but leave your "good

  16. Applying Empirical Data on Upper Torso Movement to Real-time Collision-free Reach Tasks

    E-Print Network [OSTI]

    Badler, Norman I.

    Liming Zhao, Ying Liu, Norman I. Badler Center for Human Modeling and Simulation Computer and Information Science University of Pennsylvania Copyright © 2005 SAE International ABSTRACT Simulating human reach on motion capture data, human strength models, and multi-joint coordination functions. Movement paths

  17. An EUV Fresnel zoneplate mask-imaging microscope for lithography generations reaching 8 nm

    E-Print Network [OSTI]

    An EUV Fresnel zoneplate mask-imaging microscope for lithography generations reaching 8 nm Kenneth lithography design rules. The proposed microscope features an array of user-selectable Fresnel zoneplate-EUV, Fresnel zoneplate microscope, the AIT has been in the vanguard of high-resolution EUV mask imaging

  18. Reaching Volumes Generated by Means of Octal Trees and Cartesian Constraints

    E-Print Network [OSTI]

    Rodríguez, Inmaculada

    in closed form. It was designed to be applied to robotic manipulators [1]. A recent work has proposeReaching Volumes Generated by Means of Octal Trees and Cartesian Constraints I. Rodrígueza , M studied in ergonomic research [6]. For example, cars are designed so that front panel elements are easily

  19. Macroroughness and variations in reach-averaged flow resistance in steep mountain streams

    E-Print Network [OSTI]

    Kirchner, James W.

    , boulder diameter and protrusion, and roughness of longitudinal channel profiles in six reaches of steep equation for flow velocity. The predictions were better than predictions by the variable power law equation intakes, and other infrastructure in or near streams. To accurately predict bed load transport rates

  20. Prediction of Physico-Chemical Properties for REACH Based on QSPR Models

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Prediction of Physico-Chemical Properties for REACH Based on QSPR Models Guillaume Fayeta models have been developed for the prediction of flash points of two families of organic compounds respected all OECD validation principles with excellent performances in predictivity, the one dedicated

  1. Synthesizing Redundancy Resolution Criteria of the Human Arm Posture in Reaching

    E-Print Network [OSTI]

    Rosen, Jacob

    to that of existing robotic arms. Regularity in Human Arm Movements: For decades, continuous research efforts direction. When applied to human arm movements, Donders' law predicts that every position of the hand in 3DSynthesizing Redundancy Resolution Criteria of the Human Arm Posture in Reaching Movements Zhi Li

  2. Fact #864: March 16, 2015 Imports of Primary Energy have Declined Sharply Since the Peak Reached in 2007

    Broader source: Energy.gov [DOE]

    Excel file and dataset for Imports of Primary Energy have Declined Sharply Since the Peak Reached in 2007

  3. Trends in radionuclide concentrations in Hanford Reach fish, 1982 through 1992

    SciTech Connect (OSTI)

    Poston, T.M.

    1994-06-01T23:59:59.000Z

    Environmental monitoring has been conducted at the US Department of Energy`s Hanford Site in southeast Washington State since 1945. Fish from the Hanford Reach of the Columbia River, which borders the Site, are monitored annually. The two objectives of this report were (1) to evaluate trends in the concentrations of radionuclides [e.g., {sup 90}Sr and {sup 137}Cs] in two species of Columbia River fish [smallmouth bass and mountain whitefish] sampled from the Hanford Reach from 1982 through 1992; and (2) to determine the impact of Hanford Site releases on these two species and carp and fall chinook salmon collected during this time frame. The evaluation found gradual reductions of {sup 137}Cs in bass muscle and {sup 90}Sr in bass and whitefish carcass from 1982 through 1992. Concentrations of {sup 90}Sr in bass and whitefish followed the pattern established by reported Hanford Site releases from 1982 through 1992 and was supported by significant regression analyses comparing annual releases to sample concentration. Because data for carp have been collected only since 1990, the data base was inadequate for determining trends. Moreover, fall chinook salmon were only sampled once in this 11-year period. Concentrations of {sup 90}Sr and {sup 137}Cs in fish samples collected from distant background locations exceeded concentrations in Hanford Reach fish. Estimates of the dose from consumption of Hanford Reach fish were less than 0.001 times the National Council on Radiation Protection and Measurements and the US Department of Energy guideline of 100 mrem/yr.

  4. Evaluation of Juvenile Fall Chinook Stranding on the Hanford Reach, 1997-1999 Interim Report.

    SciTech Connect (OSTI)

    Wagner, Paul; Nugent, John; Price, William (Washington Department of Fish and Wildlife, Olympia, WA)

    1999-02-15T23:59:59.000Z

    Pilot work conducted in 1997 to aid the development of the study for the 1998 Evaluation of Juvenile Fall Chinook Stranding on The Hanford Reach. The objectives of the 1997 work were to: (1) identify juvenile chinook production and rearing areas..., (2) identify sampling sites and develop the statistical parameters necessary to complete the study, (3) develop a study plan..., (4) conduct field sampling activities...

  5. Corps Improvement 

    E-Print Network [OSTI]

    Wythe, Kathy

    2007-01-01T23:59:59.000Z

    in the Upper Trinity River Basin was mainly from findings in a Corps environmental impact statement (EIS) report in the 1980s, according to Gene Rice, Corps project manager of the Dallas Floodway and Dallas Floodway Extension projects, two of the Trinity River... to mitigate environmental impacts of the proj- ect. The Corps? Fort Worth District and the City of Dallas are using an innovative approach to return floodplain value to the Trinity River, while improving flood damage reduction. Big Fossil Creek Watershed...

  6. Corps Improvement

    E-Print Network [OSTI]

    Wythe, Kathy

    2007-01-01T23:59:59.000Z

    tx H 2 O | pg. 6 O ne of the key federal players in the restoration of the Trinity River Basin is the U.S. Army Corps of Engineers, whose primary civil mission is developing and managing the nation?s water resources, including projects to reduce... flood damage; improve navigation channels and harbors; protect wetlands; and preserve, safeguard and enhance the environment. The Corps has been involved in the Trinity River Basin for more than 50 years, but the impetus for the current projects...

  7. Search for Heavy Neutral MSSM Higgs Bosons with CMS: Reach and Higgs-Mass Precision

    E-Print Network [OSTI]

    S. Gennai; S. Heinemeyer; A. Kalinowski; R. Kinnunen; S. Lethi; A. Nikitenko; G. Weiglein

    2007-04-04T23:59:59.000Z

    The search for MSSM Higgs bosons will be an important goal at the LHC. We analyze the search reach of the CMS experiment for the heavy neutral MSSM Higgs bosons with an integrated luminosity of 30 or 60 fb^-1. This is done by combining the latest results for the CMS experimental sensitivities based on full simulation studies with state-of-the-art theoretical predictions of MSSM Higgs-boson properties. The results are interpreted in MSSM benchmark scenarios in terms of the parameters tan_beta and the Higgs-boson mass scale, M_A. We study the dependence of the 5 sigma discovery contours in the M_A-tan_beta plane on variations of the other supersymmetric parameters. The largest effects arise from a change in the higgsino mass parameter mu, which enters both via higher-order radiative corrections and via the kinematics of Higgs decays into supersymmetric particles. While the variation of $\\mu$ can shift the prospective discovery reach (and correspondingly the ``LHC wedge'' region) by about Delta tan_beta = 10, we find that the discovery reach is rather stable with respect to the impact of other supersymmetric parameters. Within the discovery region we analyze the accuracy with which the masses of the heavy neutral Higgs bosons can be determined. We find that an accuracy of 1-4% should be achievable, which could make it possible in favourable regions of the MSSM parameter space to experimentally resolve the signals of the two heavy MSSM Higgs bosons at the LHC.

  8. Reaching Social Media Goals on Facebook, Twitter | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-f < RAPID‎ | Roadmap Jump to:bJump to:Reaching Social Media Goals on

  9. Search for Heavy Neutral MSSM Higgs Bosons with CMS: Reach and Higgs-Mass Precision

    E-Print Network [OSTI]

    Gennai, S; Kalinowski, A; Kinnunen, R; Lethi, S; Nikitenko, A; Weiglein, G

    2007-01-01T23:59:59.000Z

    The search for MSSM Higgs bosons will be an important goal at the LHC. We analyze the search reach of the CMS experiment for the heavy neutral MSSM Higgs bosons with an integrated luminosity of 30 or 60 fb^-1. This is done by combining the latest results for the CMS experimental sensitivities based on full simulation studies with state-of-the-art theoretical predictions of MSSM Higgs-boson properties. The results are interpreted in MSSM benchmark scenarios in terms of the parameters tan_beta and the Higgs-boson mass scale, M_A. We study the dependence of the 5 sigma discovery contours in the M_A-tan_beta plane on variations of the other supersymmetric parameters. The largest effects arise from a change in the higgsino mass parameter mu, which enters both via higher-order radiative corrections and via the kinematics of Higgs decays into supersymmetric particles. While the variation of $\\mu$ can shift the prospective discovery reach (and correspondingly the ``LHC wedge'' region) by about Delta tan_beta = 10, we...

  10. Improved aethalometer

    DOE Patents [OSTI]

    Hansen, A.D.

    1988-01-25T23:59:59.000Z

    An improved aethalometer having a single light source and a single light detector and two light paths from the light source to the light detector. A quartz fiber filter is inserted in the device, the filter having a collection area in one light path and a reference area in the other light path. A gas flow path through the aethalometer housing allows ambient air to flow through the collection area of the filter so that aerosol particles can be collected on the filter. A rotating disk with an opening therethrough allows light for the light source to pass alternately through the two light paths. The voltage output of the detector is applied to a VCO and the VCO pulses for light transmission separately through the two light paths, are counted and compared to determine the absorption coefficient of the collected aerosol particles. 5 figs.

  11. Spawning Habitat Studies of Hanford Reach Fall Chinook Salmon (Oncorhynchus tshawytscha), Final Report.

    SciTech Connect (OSTI)

    Geist, David R.; Arntzen, Evan V.; Chien, Yi-Ju (Pacific Northwest National Laboratory)

    2009-03-02T23:59:59.000Z

    The Pacific Northwest National Laboratory conducted this study for the Bonneville Power Administration (BPA) with funding provided through the Northwest Power and Conservation Council(a) and the BPA Fish and Wildlife Program. The study was conducted in the Hanford Reach of the Columbia River. The goal of study was to determine the physical habitat factors necessary to define the redd capacity of fall Chinook salmon that spawn in large mainstem rivers like the Hanford Reach and Snake River. The study was originally commissioned in FY 1994 and then recommissioned in FY 2000 through the Fish and Wildlife Program rolling review of the Columbia River Basin projects. The work described in this report covers the period from 1994 through 2004; however, the majority of the information comes from the last four years of the study (2000 through 2004). Results from the work conducted from 1994 to 2000 were covered in an earlier report. More than any other stock of Pacific salmon, fall Chinook salmon (Oncorhynchus tshawytscha) have suffered severe impacts from the hydroelectric development in the Columbia River Basin. Fall Chinook salmon rely heavily on mainstem habitats for all phases of their life cycle, and mainstem hydroelectric dams have inundated or blocked areas that were historically used for spawning and rearing. The natural flow pattern that existed in the historic period has been altered by the dams, which in turn have affected the physical and biological template upon which fall Chinook salmon depend upon for successful reproduction. Operation of the dams to produce power to meet short-term needs in electricity (termed power peaking) produces unnatural fluctuations in flow over a 24-hour cycle. These flow fluctuations alter the physical habitat and disrupt the cues that salmon use to select spawning sites, as well as strand fish in near-shore habitat that becomes dewatered. The quality of spawning gravels has been affected by dam construction, flood protection, and agricultural and industrial development. In some cases, the riverbed is armored such that it is more difficult for spawners to move, while in other cases the intrusion of fine sediment into spawning gravels has reduced water flow to sensitive eggs and young fry. Recovery of fall Chinook salmon populations may involve habitat restoration through such actions as dam removal and reservoir drawdown. In addition, habitat protection will be accomplished through set-asides of existing high-quality habitat. A key component to evaluating these actions is quantifying the salmon spawning habitat potential of a given river reach so that realistic recovery goals for salmon abundance can be developed. Quantifying salmon spawning habitat potential requires an understanding of the spawning behavior of Chinook salmon, as well as an understanding of the physical habitat where these fish spawn. Increasingly, fish biologists are recognizing that assessing the physical habitat of riverine systems where salmon spawn goes beyond measuring microhabitat like water depth, velocity, and substrate size. Geomorphic features of the river measured over a range of spatial scales set up the physical template upon which the microhabitat develops, and successful assessments of spawning habitat potential incorporate these geomorphic features. We had three primary objectives for this study. The first objective was to determine the relationship between physical habitats at different spatial scales and fall Chinook salmon spawning locations. The second objective was to estimate the fall Chinook salmon redd capacity for the Reach. The third objective was to suggest a protocol for determining preferable spawning reaches of fall Chinook salmon. To ensure that we collected physical data within habitat that was representative of the full range of potential spawning habitat, the study area was stratified based on geomorphic features of the river using a two-dimensional river channel index that classified the river cross section into one of four shapes based on channel symmetry, depth, and width. We found t

  12. INFLUENCE OF ROCKY REACH DAM AND THE TEMPERATURE OF THE OKANOGAN RIVER ON THE UPSTREAM MIGRATION OF SOCKEYE

    E-Print Network [OSTI]

    INFLUENCE OF ROCKY REACH DAM AND THE TEMPERATURE OF THE OKANOGAN RIVER ON THE UPSTREAM MIGRATION Reach Dam, constructed on the Columbia River 7 miles above Wenatchee, Wash.· in 1957-61, has not appreciably increased the time required for adult sockeye salmon (Oncorhynchus nerka) to mi~rate to Zosel Dam

  13. Influence of Headwater Streams on Downstream Reaches in Forested Lee H. MacDonald and Drew Coe

    E-Print Network [OSTI]

    MacDonald, Lee

    Influence of Headwater Streams on Downstream Reaches in Forested Areas Lee H. MacDonald and Drew of the streamflow in downstream areas. Headwater streams also provide other important constituents to downstream, and fine particulate organic matter are more likely to be delivered to downstream reaches than coarse

  14. Improving Unit Operations-Test Station Performance

    E-Print Network [OSTI]

    Filak, J. J. Jr.

    IMPROVING UNIT OPERATIONS - TEST STATION PERFORMANCE JosqIb 1. Filak. Jr, ? Corporate Energy Manager. Park.er?Hannafin COfpontioo- Cleveland. Oh ABSTRACT: This program's basic concept deals with the possibilities for reducing energy efficiency... requirements, control operation test performance functions more successfully, and retain peak load surges from reaching higher utility rate expense levels. 142 ESL-IE-95-04-23 Proceedings from the Seventeenth Industrial Energy Technology Conference...

  15. Reaching Grid Parity Using BP Solar Crystalline Silicon Technology: A Systems Class Application

    SciTech Connect (OSTI)

    Cunningham, Daniel W; Wohlgemuth, John; Carlson, David E; Clark, Roger F; Gleaton, Mark; Posbic, John P; Zahler, James

    2010-12-06T23:59:59.000Z

    The primary target market for this program was the residential and commercial PV markets, drawing on BP Solar's premium product and service offerings, brand and marketing strength, and unique routes to market. These two markets were chosen because: (1) in 2005 they represented more than 50% of the overall US PV market; (2) they are the two markets that will likely meet grid parity first; and (3) they are the two market segments in which product development can lead to the added value necessary to generate market growth before reaching grid parity. Federal investment in this program resulted in substantial progress toward the DOE TPP target, providing significant advancements in the following areas: (1) Lower component costs particularly the modules and inverters. (2) Increased availability and lower cost of silicon feedstock. (3) Product specifically developed for residential and commercial applications. (4) Reducing the cost of installation through optimization of the products. (5) Increased value of electricity in mid-term to drive volume increases, via the green grid technology. (6) Large scale manufacture of PV products in the US, generating increased US employment in manufacturing and installation. To achieve these goals BP Solar assembled a team that included suppliers of critical materials, automated equipment developers/manufacturers, inverter and other BOS manufacturers, a utility company, and University research groups. The program addressed all aspects of the crystalline silicon PV business from raw materials (particularly silicon feedstock) through installation of the system on the customers site. By involving the material and equipment vendors, we ensured that supplies of silicon feedstock and other PV specific materials like encapsulation materials (EVA and cover glass) will be available in the quantities required to meet the DOE goals of 5 to 10 GW of installed US PV by 2015 and at the prices necessary for PV systems to reach grid parity in 2015. This final technical report highlights the accomplishments of the BP Solar technical team from 2006 to the end of the project in February 2010. All the main contributors and team members are recognized for this accomplishment and their endeavors are recorded in the twelve main tasks described here.

  16. Improving School Governance | 1 Improving School Governance

    E-Print Network [OSTI]

    Rambaut, Andrew

    Improving School Governance | 1 Improving School Governance A Recommended Code of Governance for Schools: A flexible framework for strategic planning October 2012 Pilot version 1 #12;Improving School Governance | 2 #12;Improving School Governance | 3 This pilot version of the Recommended Code of Governance

  17. Ecological evaluation of proposed dredged material from the Point Frazer Bend Reach, Winyah Bay, South Carolina

    SciTech Connect (OSTI)

    Gardiner, W.W.; Ward, J.A.; Word, J.Q.

    1995-02-01T23:59:59.000Z

    The port of Georgetown, South Carolina, is served by navigational channels within Winyah Bay and the lower Sampit River. Dredging is required to maintain these waterways and to facilitate normal shipping traffic. Prior to dredging, ecological evaluations must be conducted to determine the suitability of the proposed dredged material for open-ocean disposal. These evaluations are to be performed under Section 103 of the Marine Protection, Research, and, Sanctuaries Act of 1972 (MPRSA), following the testing protocols presented in Evaluation of Dredged Material Proposed for Ocean Disposal Testing Manual, hereafter referred to as the 1991 Implementation Manual. The Charleston Intensive Project is a reevaluation of sediments collected from two stations (IH-2 and IH-3) in the Frazier Point Bend reach of the Winyah Bay channel. Reference sediment was also collected from site IH-R2, just south of Hare Island. The results of physical/chemical analyses indicated that some contaminants of concern were present in test treatments representing dredged material when compared with the reference treatment IH-R2. The results of this study indicate that, based on the acute toxicity and chemical analyses, dredged material represented by these test treatments is suitable for open-ocean disposal.

  18. Impact of access port diameter on the long reach manipulator design

    SciTech Connect (OSTI)

    Stoughton, R.S.

    1994-04-01T23:59:59.000Z

    Many of the single shell storage tanks (SSTs) on the Hanford site appear to have central 42-in. risers which could be used as access ports for the Long Reach Manipulator (LRM). However, about half of the tanks are known to not have a central 42-in. riser and it has recently been discovered that of the tanks whose drawings indicate central 42-in. risers, the majority have been plugged, sealed, or taper down to a much smaller diameter at ground level. Thus, it can be assumed that a central access port for the LRM will have to be made. There are many issues involved in determining the best diameter for this access port such as radiation exposure, contamination prevention, and availability of remote excavation technology. This report analyzes the relationship between the access port diameter and the performance characteristics of the LRM. Previous work has assumed that the mast diameter would be 80% of the access port diameter. In this report, the maximum mast diameter will be varied rather than the access port diameter, leaving the issue of the required clearance between the mast and the access port open.

  19. Locating Ground-Water Discharge in the Hanford Reach of the Columbia River

    SciTech Connect (OSTI)

    Lee, D.R.; Geist, D.R.; Saldi, K.; Hartwig, D.; Cooper, T.

    1997-03-01T23:59:59.000Z

    A bottom-contacting probe for measuring electrical conductivity at the sediment-water interface was used to scan the bed of the Columbia River adjacent to the Hanford Site in southeast Washington State during a 10-day investigation. Four river-sections, each about a kilometer in length, were scanned for variations in electrical conductivity. The probe was towed along the riverbed at a speed of 1 m/s and is position was recorded using a Global Positioning System. The bottom tows revealed several areas of elevated electrical conductivity. Where these anomalies were relatively easy to access, piezometers were driven into the riverbed and porewater electrical conductivity ranged from 111 to 150 uS/cm. The piezometers, placed in electrical conductivity “hotspots,” yielded chemical or isotopic data consistent with previous analyses of water taken from monitoring wells and visible shoreline seeps. Tritium, nitrate, and chromium exceeded water quality standards in some porewaters. The highest tritium and nitrate levels were found near the Old Hanford Townsite at 120,000 pCi/L (+ 5,880 pCi/L total propagated analytical uncertainty) and ug/L (+ 5,880 ug/L), respectively. The maximum chromium (total and hexavalent) levels were found near 100-H reactor area where unfiltered porewater total chromium was 1,900 ug/L (+ 798 ug/L) and hexavalent chromium was 20 ug/L. The electrical conductivity probe provided rapid, cost-effective reconnaissance for ground-water discharge areas when used in combination with conventional piezometers. It may be possible to obtain quantitative estimates of both natural and contaminated ground-water discharge in the Hanford Reach with more extensive surveys of river bottom.

  20. DOWN-STREAM SPATIAL DISTRIBUTION OF ANTIBIOTIC RESISTANCE TRAITS ALONG METAL CONTAMINATED STREAM REACHES

    SciTech Connect (OSTI)

    Tuckfield, C; J V Mcarthur (NOEMAIL), J

    2007-04-16T23:59:59.000Z

    Sediment bacteria samples were collected from three streams in South Carolina, two contaminated with multiple metals (Four Mile Creek and Castor Creek), one uncontaminated (Meyers Branch), and another metal contaminated stream (Lampert Creek) in northern Washington State. Growth plates inoculated with Four Mile Creek sample extracts show bacteria colony growth after incubation on plates containing either one of two aminoglycosides (kanamycin or streptomycin), tetracycline or chloramphenocol. This study analyzes the spatial pattern of antibiotic resistance in culturable sediment bacteria in all four streams that may be due to metal contamination. We summarize the two aminoglycoside resistance measures and the 10 metals concentrations by Principal Components Analysis. Respectively, 63% and 58% of the variability was explained in the 1st principal component of each variable set. We used the respective multivariate summary metrics (i.e. 1st principal component scores) as input measures for exploring the spatial correlation between antibiotic resistance and metal concentration for each stream reach sampled. Results show a significant and negative correlation between metals scores versus aminoglycoside resistance scores and suggest that selection for metal tolerance among sediment bacteria may influence selection for antibiotic resistance differently than previously supposed.. In addition, we borrow a method from geostatistics (variography) wherein a spatial cross-correlation analysis shows that decreasing metal concentrations scores are associated with increasing aminoglycoside resistance scores as the separation distance between sediment samples decreases, but for contaminated streams only. Since these results were counter to our initial expectation and to other experimental evidence for water column bacteria, we suspect our field results are influenced by metal bioavailability in the sediments and by a contaminant promoted interaction or ''cocktail effect'' from complex combinations of pollution mediated selection agents.

  1. Conceptual design of a regional water quality screening model. [RFF; Reach; HANFORD; ARQUAL; SEAS; NASQUAN

    SciTech Connect (OSTI)

    Davis, M J

    1981-01-01T23:59:59.000Z

    This water quality assessment methodology is intended to predict concentrations at future times and to estimate the impacts on water quality of energy-related activities (including industrial boilers). Estimates of impacts on water quality at future times are based on incremental changes in pollutant inputs to the body water. Important features of the model are: use of measured concentrations to account for existing conditions; consideration of incremental changes in pollutant loads; emphasis on the energy sector and industrial boilers; analysis restricted to streams only; no attempt to fully account for pollutant behavior; and flexible design, so that future improvements can be incorporated. The basic approach is very similar to the one used by Argonne's ARQUAL model but will allow more complex pollutant behavior and more flexibility in use. (PSB)

  2. Spawning and abundance of fall chinook salmon (Oncorhynchus tshawytscha) in the Hanford Reach of the Columbia River, 1948--1988

    SciTech Connect (OSTI)

    Dauble, D.D.; Watson, D.G.

    1990-03-01T23:59:59.000Z

    The Hanford Reach of the Columbia River provides the only major spawning habitat for the upriver bright (URB) race of fall chinook salmon in the mainstem Columbia River. Hanford Site biologists have conducted aerial surveys of spawning salmon in the Hanford Reach since 1948. This report summarizes data on fall chinook salmon spawning in the Hanford Reach and presents a discussion of factors that may affect population trends. Most data are limited to fisheries agency reports and other working documents. Fisheries management practices in the Columbia River system have changed rapidly over the last decade, particularly under requirements of the Pacific Northwest Power Planning and Conservation Act of 1980. New information has been generated and included in this report. 75 refs., 17 figs., 11 tabs.

  3. Evaluation of Juvenile Fall Chinook Salmon Stranding on the Hanford Reach of the Columbia River, 1999 Annual Report.

    SciTech Connect (OSTI)

    Nugent, John

    2002-01-24T23:59:59.000Z

    The Washington Department of Fish and Wildlife (WDFW) has been contracted through the Bonneville Power Administration (BPA) and the Grant County Public Utility District (GCPUD) to perform an evaluation of juvenile fall chinook salmon (Oncorhynchus tshawytscha) stranding on the Hanford Reach. The evaluation, in the third year of a multi-year study, has been developed to assess the impacts of water fluctuations from Priest Rapids Dam on rearing juvenile fall chinook salmon, other fishes, and benthic macroinvertebrates of the Hanford Reach. This document provides the results of the 1999 field season.

  4. Housing Within Reach: Innovations in Affordable Housing February 16-17, 2006 David T. Damery, UMASS-Amherst

    E-Print Network [OSTI]

    Schweik, Charles M.

    Housing Within Reach: Innovations in Affordable Housing ­ February 16-17, 2006 David T. Damery hosted a two-day conference focusing on the topic of affordable housing this past February. The conference brought together national figures in the design and development of affordable housing, developers

  5. As corn-based biofuels reach their practical limits, advanced algae-based biofuels are poised to supply

    E-Print Network [OSTI]

    Reisslein, Martin

    SEMTE abstract As corn-based biofuels reach their practical limits, advanced algae-based biofuels of Energy, General Electric, Algenol Biofuels, and Southern Company. Currently a post-doctoral fellow working for Algenol Biofuels, Dr. Lively is expanding his expertise in gas and liquid separations

  6. Stream-reach Identification for New Run-of-River Hydropower Development through a Merit Matrix Based Geospatial Algorithm

    SciTech Connect (OSTI)

    Pasha, M. Fayzul K. [California State University, Fresno; Yeasmin, Dilruba [ORNL; Kao, Shih-Chieh [ORNL; Hadjerioua, Boualem [ORNL; Wei, Yaxing [ORNL; Smith, Brennan T [ORNL

    2014-01-01T23:59:59.000Z

    Even after a century of development, the total hydropower potential from undeveloped rivers is still considered to be abundant in the United States. However, unlike evaluating hydropower potential at existing hydropower plants or non-powered dams, locating a feasible new hydropower plant involves many unknowns, and hence the total undeveloped potential is harder to quantify. In light of the rapid development of multiple national geospatial datasets for topography, hydrology, and environmental characteristics, a merit matrix based geospatial algorithm is proposed to help identify possible hydropower stream-reaches for future development. These hydropower stream-reaches sections of natural streams with suitable head, flow, and slope for possible future development are identified and compared using three different scenarios. A case study was conducted in the Alabama-Coosa-Tallapoosa (ACT) and Apalachicola-Chattahoochee-Flint (ACF) hydrologic subregions. It was found that a merit matrix based algorithm, which is based on the product of hydraulic head, annual mean flow, and average channel slope, can help effectively identify stream-reaches with high power density and small surface inundation. The identified stream-reaches can then be efficiently evaluated for their potential environmental impact, land development cost, and other competing water usage in detailed feasibility studies . Given that the selected datasets are available nationally (at least within the conterminous US), the proposed methodology will have wide applicability across the country.

  7. How to Reach ISI Delhi While booking an auto or a taxi to ISI, mention two wellknown landmarks: Qutab Hotel

    E-Print Network [OSTI]

    Bandyopadhyay, Antar

    How to Reach ISI Delhi While booking an auto or a taxi to ISI, mention two wellknown landmarks: Qutab Hotel (ISI is about 300 meters away from the Qutab Hotel) or Katwaria Sarai (which is the locality where ISI belongs and is directly opposite to the Katwaria Sarai bus stop). For the exact location click

  8. Red River Stream Improvement Final Design Nez Perce National Forest.

    SciTech Connect (OSTI)

    Watershed Consulting, LLC

    2007-03-15T23:59:59.000Z

    This report details the final stream improvement design along the reach of Red River between the bridge below Dawson Creek, upstream for approximately 2 miles, Idaho County, Idaho. Geomorphic mapping, hydrologic profiles and cross-sections were presented along with existing fish habitat maps in the conceptual design report. This information is used to develop a stream improvement design intended to improve aquatic habitat and restore riparian health in the reach. The area was placer mined using large bucket dredges between 1938 and 1957. This activity removed most of the riparian vegetation in the stream corridor and obliterated the channel bed and banks. The reach was also cut-off from most valley margin tributaries. In the 50 years since large-scale dredging ceased, the channel has been re-established and parts of the riparian zone have grown in. However, the recruitment of large woody debris to the stream has been extremely low and overhead cover is poor. Pool habitat makes up more than 37% of the reach, and habitat diversity is much better than the project reach on Crooked River. There is little large woody debris in the stream to provide cover for spawning and juvenile rearing, because the majority of the woody debris does not span a significant part of the channel, but is mainly on the side slopes of the stream. Most of the riparian zone has very little soil or subsoil left after the mining and so now consists primarily of unconsolidated cobble tailings or heavily compacted gravel tailings. Knapweed and lodgepole pine are the most successful colonizers of these post mining landforms. Tributary fans which add complexity to many other streams in the region, have been isolated from the main reach due to placer mining and road building.

  9. Improved Biomass Cooking Stoves and Improved Stove Emission Equipment

    SciTech Connect (OSTI)

    HATFIELD, MICHAEL; Still, Dean

    2013-04-15T23:59:59.000Z

    In developing countries, there is an urgent need for access to safe, efficient, and more affordable cooking technologies. Nearly 2.5 billion people currently use an open fire or traditional cookstove to prepare their meals, and recent models predict that use of biomass for cooking will continue to be the dominant energy use in rural, resource-poor households through 2030. For these families, cooking poses serious risks to health, safety, and income. An alarming 4 million people, primarily women and children, die prematurely each year from indoor and outdoor exposure to the harmful emissions released by solid fuel combustion. Use of traditional stoves can also have a significant impact on deforestation and climate change. This dire situation creates a critical need for cookstoves that significantly and verifiably reduce fuel use and emissions in order to reach protective levels for human health and the environment. Additionally, advances in the scientific equipment needed to measure and monitor stove fuel use and emissions have not kept pace with the significant need within the industry. While several testing centers in the developed world may have hundred thousand-dollar emissions testing systems, organizations in the field have had little more than a thermometer, a scale, and subjective observations to quantify the performance of stove designs. There is an urgent need for easy-to-use, inexpensive, accurate, and robust stove testing equipment for use by laboratory and field researchers around the world. ASAT and their research partner, Aprovecho Research Center (ARC), have over thirty years of experience addressing these two needs, improved cookstoves and emissions monitoring equipment, with expertise spanning the full spectrum of development from conceptual design to product manufacturing and dissemination. This includes: 1) research, design, and verification of clean biomass cookstove technology and emissions monitoring equipment; 2) mass production of quality-controlled stove and emissions equipment at levels scalable to meet global demand; and 3) global distribution through a variety of channels and partners. ARC has been instrumental in designing and improving more than 100 stove designs over the past thirty years. In the last four years, ASAT and ARC have played a key role in the production and sales of over 200,000 improved stoves in the developed and developing world. The ARC-designed emissions equipment is currently used by researchers in laboratories and field studies on five continents. During Phase I of the DOE STTR grant, ASAT and ARC worked together to apply their wealth of product development experience towards creating the next generation of improved cookstoves and emissions monitoring equipment. Highlights of Phase I for the biomass cookstove project include 1) the development of several new stove technologies that reached the DOE 50/90 benchmark; 2) fabrication of new stove prototypes by ASAT’s manufacturing partner, Shengzhou Stove Manufacturing (SSM); 3) field testing of prototype stoves with consumers in Puerto Rico and the US; and 4) the selection of three stove prototypes for further development and commercialization during Phase II. Highlights of Phase I for the emissions monitoring equipment project include: 1) creation of a new emissions monitoring equipment product, the Laboratory Emissions Monitoring System (LEMS 2) the addition of gravimetric PM measurements to the stove testing systems to meet International Standards Organization criteria; 3) the addition of a CO{sub 2} sensor and wireless 3G capability to the IAP Meter; and 4) and the improvement of sensors and signal quality on all systems. Twelve Regional Testing and Knowledge Centers purchased this equipment during the Phase I project period.

  10. Economic Improvement Districts (Indiana)

    Broader source: Energy.gov [DOE]

    A legislative body may adopt an ordinance establishing an economic improvement district and an Economic Improvement Board to manage development in a respective district. The Board can choose to...

  11. REALIZING POTENTIAL REACHING BEYOND

    E-Print Network [OSTI]

    Farritor, Shane

    namesakes prosper intellectually, socially and emotionally. These endeavors have stemmed from the resolute Home for Latinos Game Plans for Early Childhood Coaching Student Affiliate's Thesis Measures Up

  12. Microsoft Word - Agreement Reached

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHighandSWPA / SPRA / USACE SWPAURTeC:8 3. EFFECTIVE2 U.S.32009 Joint2008

  13. Investigation of exposure rates and radionuclide and trace metal distributions along the Hanford Reach of the Columbia River

    SciTech Connect (OSTI)

    Cooper, A.T.; Woodruff, R.K.

    1993-09-01T23:59:59.000Z

    Studies have been conducted to investigate exposure rates, and radionuclide and trace metal distributions along the Columbia River where it borders the Hanford Site. The last major field study was conducted in 1979. With recently renewed interest in various land use and resource protection alternatives, it is important to have data that represent current conditions. Radionuclides and trace metals were surveyed in Columbia River shoreline soils along the Hanford Site (Hanford Reach). The work was conducted as part of the Surface Environmental Surveillance Project, Pacific Northwest Laboratory. The survey consisted of taking exposure rate measurements and soil samples primarily at locations known or expected to have elevated exposure rates.

  14. THE FLAMMABILITY ANALYSIS AND TIME TO REACH LOWER FLAMMABILITY LIMIT CALCULATIONS ON THE WASTE EVAPORATION AT 242-A EVAPORATOR

    SciTech Connect (OSTI)

    HU TA

    2007-10-31T23:59:59.000Z

    This document describes the analysis of the waste evaporation process on the flammability behavior. The evaluation calculates the gas generation rate, time to reach 25% and 100% of the lower flammability limit (LFL), and minimum ventilation rates for the 242-A Evaporator facility during the normal evaporation process and when vacuum is lost. This analysis performs flammability calculations on the waste currently within all 28 double-shell tanks (DST) under various evaporation process conditions to provide a wide spectrum of possible flammable gas behavior. The results of this analysis are used to support flammable gas control decisions and support and upgrade to Documented Safety Analysis for the 242-A Evaporator.

  15. Development and Deployment of the Extended Reach Sluicing System (ERSS) for Retrieval of Hanford Single Shell Tank Waste. Draft

    SciTech Connect (OSTI)

    Bauer, Roger E. [Washington River Protection Systems, Richland, WA (United States); Figley, Reed R. [Washington River Protection Systems, Richland, WA (United States); Innes, A. G. [Washington River Protection Systems, Richland, WA (United States)

    2013-11-11T23:59:59.000Z

    A history of the evolution and the design development of Extended Reach Sluicer System (ERSS) is presented. Several challenges are described that had to be overcome to create a machine that went beyond the capabilities of prior generation sluicers to mobilize waste in Single Shell Tanks for pumping into Double Shell Tank receiver tanks. Off-the-shelf technology and traditional hydraulic fluid power systems were combined with the custom-engineered components to create the additional functionality of the ERSS, while still enabling it to fit within very tight entry envelope into the SST. Problems and challenges inevitably were encountered and overcome in ways that enhance the state of the art of fluid power applications in such constrained environments. Future enhancements to the ERSS design are explored for retrieval of tanks with different dimensions and internal obstacles.

  16. Improving Fired Heater Efficiency 

    E-Print Network [OSTI]

    Shriver, J. E.

    1983-01-01T23:59:59.000Z

    1982. 2, Fehervari, Willi, "Gas Measurement and Control for Pipeline Systems," The Foxboro Company. 3. Shriver, James, "CO/02 Boiler Control: Point Is Vi tal," POWER, October 1982. Set 1\\. Dukelow, Samuel, "Improving Boiler Efficiency...

  17. Recent Improvements in DDT

    E-Print Network [OSTI]

    Edwards, D.J.

    1963-11-01T23:59:59.000Z

    This paper will report new developments and recent improvements to DDT. "Window DDT" now will remember undefined symbols and define them on a later command. Using sequence breaks, it can change the contents of memory while ...

  18. Abuse Tolerance Improvements

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

    additive shows some improvement in flammability compared to the control electrolyte (EC:EMC (2:8)). Metal Phosphate-Coated Cathodes (PSI): Delivered 2 kg of LiMPO4-coated...

  19. Improved Dragline Utilization 

    E-Print Network [OSTI]

    Keller, K. J.

    1980-01-01T23:59:59.000Z

    The cause of energy conservation can be served by increasing the efficiency of large draglines used in surface coal mining. The topic is the application of a training simulator, computer instrumentation and computer simulation to improve dragline...

  20. Using the Conceptual Site Model to Remediate Two Sites in New England and Reach License Termination and Site Reuse

    SciTech Connect (OSTI)

    Glucksberg, Nadia; Peters, Jay [MACTEC Engineering and Consulting, Inc., Portland, Maine, 04112 and Wakefield, Massachusetts, 01880 (United States)

    2008-01-15T23:59:59.000Z

    The Conceptual Site Model (CSM) is a powerful tool for understanding the link between contamination sources, cleanup objectives, and ultimate site reuse. The CSM describes the site setting, geology, hydrogeology, potential sources, release mechanisms and migration pathways of contaminants. The CSM is needed to understand the extent of contamination and how receptors may be exposed to both radiological and chemical constituents. A key component of the CSM that is often overlooked concerns how the regulatory requirements drive remediation and how each has to be integrated into the CSM to ensure that all stakeholder requirements are understood and addressed. This paper describes how the use of the CSM helped reach closure and reuse at two facilities in Connecticut that are pursuing termination of their Nuclear Regulatory Commission (NRC) license. The two facilities are the Combustion Engineering Site, located in Windsor, Connecticut, (CE Windsor Site) and the Connecticut Yankee Atomic Power Company, located in Haddam Neck, Connecticut (CYAPCO). The closure of each of these facilities is regulated by four agencies: - Nuclear Regulatory Commission (NRC) - which requires cleanup levels for radionuclides to be protective of public health; - US Environmental Protection Agency (USEPA) - which requires cleanup levels for chemicals to be protective of public health and the environment; - Connecticut Department of Environmental Protection (CTDEP) Bureau of Air Management, Radiation Division - which requires cleanup levels for radionuclides to be protective of public health; and - Connecticut Department of Environmental Protection (CTDEP) Bureau of Water Protection and Land Reuse - which requires cleanup levels for chemicals to be protective of public health and the environment. Some of the radionuclides at the CE Windsor Site are also regulated under the Formerly Utilized Site Remedial Action Program (FUSRAP) under the Army Corps of Engineers. The remainder of this paper presents the similarities and differences between the CSMs for these two sites and how each site used the CSM to reach closure. Although each of these site have unique histories and physical features, the CSM approach was used to understand the geology, hydrogeology, migration and exposure pathways, and regulatory requirements to successfully characterize and plan closure of the sites. A summary of how these attributes affected site closure is provided.

  1. Managing Energy Efficiency Improvement 

    E-Print Network [OSTI]

    Almaguer, J.

    2006-01-01T23:59:59.000Z

    results has been the utilization of Six Sigma methodology to identify and seize opportunities to improve our performance and to better meet customer needs. Since its implementation in 1999, Six Sigma has proven to be a breakthrough process that can... take Dow to the next level of performance for all our key stakeholders. The Six Sigma methodology has been especially successful in improving energy efficiency and reducing energy costs and is the primary methodology used by technology center...

  2. Radionuclides, Trace Metals, and Organic Compounds in Shells of Native Freshwater Mussels Along the Hanford Reach of the Columbia River: 6000 Years Before Present to Current Times

    SciTech Connect (OSTI)

    B. L. Tiller; T. E. Marceau

    2006-01-25T23:59:59.000Z

    This report documents concentrations of radionuclides, trace metals, and semivolatile organic compounds measured in shell samples of the western pearl shell mussel collected along the Hanford Reach of the Columbia River.

  3. Advanced Combustion Concepts - Enabling Systems and Solutions...

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

    advanced control concepts and enabling system to manage multi-modemulti-fuel combustion events and achieve an up to 30 percent fuel economy improvement deer11yilmaz.pdf...

  4. ACHIEVING 800 KW CW BEAM POWER AND CONTINUING ENERGY IMPROVEMENTS IN CEBAF*

    E-Print Network [OSTI]

    ACHIEVING 800 KW CW BEAM POWER AND CONTINUING ENERGY IMPROVEMENTS IN CEBAF* C. E. Reece Thomas, CEBAF at Jefferson Lab has demonstrated its full capacity of sustained 800 kW beam power. All systems the energy reach of CEBAF, we began a program of processing all installed cryomodules. This processing has

  5. Hierarchically Structured ZnO Nanorods-Nanosheets for Improved Quantum-Dot-Sensitized Solar Cells

    E-Print Network [OSTI]

    Cao, Guozhong

    . INTRODUCTION The establishment of low-cost and high-performance solar cells for sustainable energy sources). This hierarchical structure had two advantages in improving the power conversion efficiency (PCE) of the solar cells broadens the optical absorption of the solar cells. So far, CdS/CdSe-cosensitized QDSCs have reached power

  6. Improved vortex reactor system

    DOE Patents [OSTI]

    Diebold, James P. (Lakewood, CO); Scahill, John W. (Evergreen, CO)

    1995-01-01T23:59:59.000Z

    An improved vortex reactor system for affecting fast pyrolysis of biomass and Refuse Derived Fuel (RDF) feed materials comprising: a vortex reactor having its axis vertically disposed in relation to a jet of a horizontally disposed steam ejector that impels feed materials from a feeder and solids from a recycle loop along with a motive gas into a top part of said reactor.

  7. Assessment of the Species Composition, Densities, and Distribution of Native Freshwater Mussels along the Benton County Shoreline of the Hanford Reach, Columbia River, 2004

    SciTech Connect (OSTI)

    Mueller, Robert P.; Tiller, Brett L.; Bleich, Matthew D.; Turner, Gerald; Welch, Ian D.

    2011-01-31T23:59:59.000Z

    The Hanford Reach of the Columbia River is the last unimpounded section of the river and contains substrate characteristics (cobble, gravel, sand/silt) suitable for many of the native freshwater mussels known to exist in the Pacific Northwest. Information concerning the native mussel species composition, densities, and distributions in the mainstem of the Columbia River is limited. Under funding from the U.S. Department of Energy Richland Operations Office (DOE-RL), Pacific Northwest National Laboratory conducted an assessment of the near-shore habitat on the Hanford Reach. Surveys conducted in 2004 as part of the Ecological Monitoring and Compliance project documented several species of native mussels inhabiting the near-shore habitat of the Hanford Reach. Findings reported here may be useful to resource biologists, ecologists, and DOE-RL to determine possible negative impacts to native mussels from ongoing near-shore remediation activities associated with Hanford Site cleanup. The objective of this study was to provide an initial assessment of the species composition, densities, and distribution of the freshwater mussels (Margaritiferidae and Unionidae families) that exist in the Hanford Reach. Researchers observed and measured 201 live native mussel specimens. Mussel density estimated from these surveys is summarized in this report with respect to near-shore habitat characteristics including substrate size, substrate embeddedness, relative abundance of aquatic vegetation, and large-scale geomorphic/hydrologic characteristics of the Hanford Reach.

  8. Improved solar heating systems

    DOE Patents [OSTI]

    Schreyer, J.M.; Dorsey, G.F.

    1980-05-16T23:59:59.000Z

    An improved solar heating system is described in which the incident radiation of the sun is absorbed on collector panels, transferred to a storage unit and then distributed as heat for a building and the like. The improvement is obtained by utilizing a storage unit comprising separate compartments containing an array of materials having different melting points ranging from 75 to 180/sup 0/F. The materials in the storage system are melted in accordance with the amount of heat absorbed from the sun and then transferred to the storage system. An efficient low volume storage system is provided by utilizing the latent heat of fusion of the materials as they change states in storing ad releasing heat for distribution.

  9. Improved vortex reactor system

    DOE Patents [OSTI]

    Diebold, J.P.; Scahill, J.W.

    1995-05-09T23:59:59.000Z

    An improved vortex reactor system is described for affecting fast pyrolysis of biomass and Refuse Derived Fuel (RDF) feed materials comprising: a vortex reactor having its axis vertically disposed in relation to a jet of a horizontally disposed steam ejector that impels feed materials from a feeder and solids from a recycle loop along with a motive gas into a top part of said reactor. 12 figs.

  10. Improving haul truck productivity

    SciTech Connect (OSTI)

    Fiscor, S.

    2007-06-15T23:59:59.000Z

    The paper reviews developments in payload management and cycle times. These were discussed at a roundtable held at the Haulage and Loading 2007 conference held in May in Phoenix, AZ, USA. Several original equipment manufacturers (OEMs) explaind what their companies were doing to improve cycle times for trucks, shovels and excavators used in surface coal mining. Quotations are given from Dion Domaschenz of Liebherr and Steve Plott of Cat Global Mining. 4 figs.

  11. Track 10: Feedback and Improvement

    Broader source: Energy.gov [DOE]

    ISM Workshop Presentations Knoxville Convention Center, Knoxville, TN August 2009 Track 10: Feedback and Improvement

  12. Improved ion detector

    DOE Patents [OSTI]

    Tullis, A.M.

    1986-01-30T23:59:59.000Z

    An improved ion detector device of the ionization detection device chamber type comprises an ionization chamber having a central electrode therein surrounded by a cylindrical electrode member within the chamber with a collar frictionally fitted around at least one of the electrodes. The collar has electrical contact means carried in an annular groove in an inner bore of the collar to contact the outer surface of the electrode to provide electrical contact between an external terminal and the electrode without the need to solder leads to the electrode.

  13. Improved cycling cryopump

    DOE Patents [OSTI]

    Batzer, T.H.; Call, W.R.

    1984-12-04T23:59:59.000Z

    The present invention is designed to achieve continuous high efficiency cryopumping of a vacuum vessel by improving upon and combining in a novel way the cryopumping in a novel way the cryopumping methods. The invention consists of a continuous operation cryopump, with movable louvres, with a high efficiency pumping apparatus. The pumping apparatus includes three cryogenic tubes. They are constructed of a substance of high thermal conductivity, such as aluminum and their exterior surfaces are cryogenic condensing surfaces. Through their interior liquid or gaseous helium from two reservoirs can be made to flow, alternately promoting extreme cooling or allowing some warming.

  14. Improved Dark Energy Constraints

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItem Not Found Item Not Found TheHot electron dynamics in graphene byI _Improved Dark

  15. Arctic sea ice extent small as never before Alerting message from the Arctic: The extent the the Arctic sea ice has reached on Sep. 8

    E-Print Network [OSTI]

    Bremen, Universität

    Arctic sea ice extent small as never before Alerting message from the Arctic: The extent the the Arctic sea ice has reached on Sep. 8 with 4.240 million km2 a new historic minimum (Figure 1). Physicists of the University of Bremen now confirm the apprehension existing since July 2011 that the ice melt in the Arctic

  16. "A Tour of the Cryosphere 2009" Though cold and often remote, the icy reaches of the Arctic, Antarctic, and other frozen

    E-Print Network [OSTI]

    . These currents influence climate worldwide. Most ice exists in the cold polar regions, but we see glaciers like"A Tour of the Cryosphere 2009" Transcript Though cold and often remote, the icy reaches. Offshore, sea ice forms when the surface of the ocean freezes, pushing salt out of the ice. The cold salty

  17. Graphene and New Electronic Materials Silicon-based electronics will reach its fundamental limits over the next 6-10 years. This will

    E-Print Network [OSTI]

    Li, Mo

    to allow continued advances in this critical field. A material that has received extensive attention device fabrication. Interfaces and thus bonding structures between materials are criticalGraphene and New Electronic Materials Silicon-based electronics will reach its fundamental limits

  18. Lake Improvement District Law and County Lake Improvement Program (Minnesota)

    Broader source: Energy.gov [DOE]

    Lake Improvement Districts may be established by county boards in order to “improve the quality of water in lakes; provide for reasonable assurance of water quantity in lakes, where feasible and...

  19. Improved Lattice Radial Quantization

    E-Print Network [OSTI]

    Richard C. Brower; Michael Cheng; George T. Fleming

    2014-07-28T23:59:59.000Z

    Lattice radial quantization was proposed in a recent paper by Brower, Fleming and Neuberger[1] as a nonperturbative method especially suited to numerically solve Euclidean conformal field theories. The lessons learned from the lattice radial quantization of the 3D Ising model on a longitudinal cylinder with 2D Icosahedral cross-section suggested the need for an improved discretization. We consider here the use of the Finite Element Methods(FEM) to descretize the universally-equivalent $\\phi^4$ Lagrangian on $\\mathbb R \\times \\mathbb S^2$. It is argued that this lattice regularization will approach the exact conformal theory at the Wilson-Fisher fixed point in the continuum. Numerical tests are underway to support this conjecture.

  20. Deceleration Orbit Improvements

    SciTech Connect (OSTI)

    Church, M.

    1991-04-26T23:59:59.000Z

    During the accelerator studies period of 12/90-1/91 much study time was dedicated to improving the E760 deceleration ramps. 4 general goals were in mind: (1) Reduce the relative orbit deviations from the nominal reference orbit as much as possible. This reduces the potential error in the orbit length calculation - which is the primary source of error in the beam energy calculation. (2) Maximize the transverse apertures. This minimizes beam loss during deceleration and during accidental beam blow-ups. (3) Measure and correct lattice parameters. Knowledge of {gamma}{sub T}, {eta}, Q{sub h}, Q{sub v}, and the dispersion in the straight sections allows for a more accurate energy calculation and reliable SYNCH calculations. (4) Minimize the coupling. This allows one to discern between horizontal and vertical tunes.

  1. Regulatory Streamlining and Improvement

    SciTech Connect (OSTI)

    Mark A. Carl

    2006-07-11T23:59:59.000Z

    The Interstate Oil and Gas Compact Commission (IOGCC) engaged in numerous projects outlined under the scope of work discussed in the United States Department of Energy (DOE) grant number DE-FC26-04NT15456 awarded to the IOGCC. Numerous projects were completed that were extremely valuable to state oil and gas agencies as a result of work performed utilizing resources provided by the grant. There are numerous areas in which state agencies still need assistance. This additional assistance will need to be addressed under future scopes of work submitted annually to DOE's Project Officer for this grant. This report discusses the progress of the projects outlined under the grant scope of work for the 2005-2006 areas of interest, which are as follows: Area of Interest No. 1--Regulatory Streamlining and Improvement: This area of interest continues to support IOGCC's regulatory streamlining efforts that include the identification and elimination of unnecessary duplications of efforts between and among state and federal programs dealing with exploration and production on public lands. Area of Interest No. 2--Technology: This area of interest seeks to improve efficiency in states through the identification of technologies that can reduce costs. Area of Interest No. 3--Training and Education: This area of interest is vital to upgrading the skills of regulators and industry alike. Within the National Energy Policy, there are many appropriate training and education opportunities. Education was strongly endorsed by the President's National Energy Policy Development group. Acting through the governors offices, states are very effective conduits for the dissemination of energy education information. While the IOGCC favors the development of a comprehensive, long-term energy education plan, states are also supportive of immediate action on important concerns, such as energy prices, availability and conservation. Area of Interest No. 4--Resource Assessment and Development: This area of interest relates directly to helping maximize production of domestic oil and natural gas resources, including areas that are under explored or have not been adequately defined.

  2. Improvements to the LC Muon tracking and identification software

    SciTech Connect (OSTI)

    Milstene, C.; Fisk, G.; Para, A.

    2005-03-01T23:59:59.000Z

    This note summarizes the evolution of the Muon-ID package originally written by R. Markeloff at NIU. The original method used a helical swimmer to extrapolate the tracks from the interaction point and to collect hits in all sub-detectors: the electromagnetic and hadronic calorimeters and muon detector. The package was modified to replace the swimmer by a stepper which does account for both the effects of the magnetic field and for the losses by ionization in the material encountered by the particle. The modified package shows a substantial improvement in the efficiency of muon identification. Further improvement should be reached by accounting for stochastic processes via the utilization of a Kalman filter.

  3. CONFORMANCE IMPROVEMENT USING GELS

    SciTech Connect (OSTI)

    Randall S. Seright

    2004-09-30T23:59:59.000Z

    This report describes work performed during the third and final year of the project, ''Conformance Improvement Using Gels.'' Corefloods revealed throughput dependencies of permeability reduction by polymers and gels that were much more prolonged during oil flow than water flow. This behavior was explained using simple mobility ratio arguments. A model was developed that quantitatively fits the results and predicts ''clean up'' times for oil productivity when production wells are returned to service after application of a polymer or gel treatment. X-ray computed microtomography studies of gels in strongly water-wet Berea sandstone and strongly oil-wet porous polyethylene suggested that oil penetration through gel-filled pores occurs by a gel-dehydration mechanism, rather than gel-ripping or gel-displacement mechanisms. In contrast, analysis of data from the University of Kansas suggests that the gel-ripping or displacement mechanisms are more important in more permeable, strongly water-wet sandpacks. These findings help to explain why aqueous gels can reduce permeability to water more than to oil under different conditions. Since cement is the most commonly used material for water shutoff, we considered when gels are preferred over cements. Our analysis and experimental results indicated that cement cannot be expected to completely fill (top to bottom) a vertical fracture of any width, except near the wellbore. For vertical fractures with apertures less than 4 mm, the cement slurry will simply not penetrate very far into the fracture. For vertical fractures with apertures greater than 4 mm, the slurry may penetrate a substantial distance into the bottom part of the fracture. However, except near the wellbore, the upper part of the fracture will remain open due to gravity segregation. We compared various approaches to plugging fractures using gels, including (1) varying polymer content, (2) varying placement (extrusion) rate, (3) using partially formed gels, (4) using combinations of high and low molecular weight (Mw) polymers, (5) using secondary crosslinking reactions, (6) injecting un-hydrated polymer particles, and (7) incorporating particulates. All of these methods showed promise in some aspects, but required performance improvements in other aspects. All materials investigated to date showed significant performance variations with fracture width. High pressure gradients and limited distance of penetration are common problems in tight fractures. Gravity segregation and low resistance to breaching are common problems in wide fractures. These will be key issues to address in future work. Although gels can exhibit disproportionate permeability reduction in fractures, the levels of permeability reduction for oil flow are too high to allow practical exploitation in most circumstances. In contrast, disproportionate permeability reduction provided by gels that form in porous rock (adjacent to the fractures) has considerable potential in fractured systems.

  4. Refines Efficiency Improvement

    SciTech Connect (OSTI)

    WRI

    2002-05-15T23:59:59.000Z

    Refinery processes that convert heavy oils to lighter distillate fuels require heating for distillation, hydrogen addition or carbon rejection (coking). Efficiency is limited by the formation of insoluble carbon-rich coke deposits. Heat exchangers and other refinery units must be shut down for mechanical coke removal, resulting in a significant loss of output and revenue. When a residuum is heated above the temperature at which pyrolysis occurs (340 C, 650 F), there is typically an induction period before coke formation begins (Magaril and Aksenova 1968, Wiehe 1993). To avoid fouling, refiners often stop heating a residuum before coke formation begins, using arbitrary criteria. In many cases, this heating is stopped sooner than need be, resulting in less than maximum product yield. Western Research Institute (WRI) has developed innovative Coking Index concepts (patent pending) which can be used for process control by refiners to heat residua to the threshold, but not beyond the point at which coke formation begins when petroleum residua materials are heated at pyrolysis temperatures (Schabron et al. 2001). The development of this universal predictor solves a long standing problem in petroleum refining. These Coking Indexes have great potential value in improving the efficiency of distillation processes. The Coking Indexes were found to apply to residua in a universal manner, and the theoretical basis for the indexes has been established (Schabron et al. 2001a, 2001b, 2001c). For the first time, a few simple measurements indicates how close undesired coke formation is on the coke formation induction time line. The Coking Indexes can lead to new process controls that can improve refinery distillation efficiency by several percentage points. Petroleum residua consist of an ordered continuum of solvated polar materials usually referred to as asphaltenes dispersed in a lower polarity solvent phase held together by intermediate polarity materials usually referred to as resins. The Coking Indexes focus on the amount of these intermediate polarity species since coke formation begins when these are depleted. Currently the Coking Indexes are determined by either titration or solubility measurements which must be performed in a laboratory. In the current work, various spectral, microscopic, and thermal techniques possibly leading to on-line analysis were explored for measuring the Coking Indexes.

  5. Improving energy storage devices | EMSL

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

    energy storage devices Improving energy storage devices Released: April 15, 2014 Lithium-sulfur batteries last longer with nanomaterial-packed cathode A new PNNL-developed...

  6. Improve Your Boiler's Combustion Efficiency

    SciTech Connect (OSTI)

    Not Available

    2006-01-01T23:59:59.000Z

    This revised ITP tip sheet on boiler combustion efficiency provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

  7. Improving Solar-Cell Efficiency

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

    2003 | 2002 2001 | 2000 | 1998 | Subscribe to APS Science Highlights rss feed Improving Solar Cell Efficiency October 7, 2014 Bookmark and Share The two-dimensional grazing...

  8. QCD Thermodynamics with Improved Actions

    E-Print Network [OSTI]

    Karsch, Frithjof; Engels, J; Joswig, R; Laermann, E; Peikert, A; Petersson, B

    1996-01-01T23:59:59.000Z

    The thermodynamics of the SU(3) gauge theory has been analyzed with tree level and tadpole improved Symanzik actions. A comparison with the continuum extrapolated results for the standard Wilson action shows that improved actions lead to a drastic reduction of finite cut-off effects already on lattices with temporal extent $N_\\tau=4$. Results for the pressure, the critical temperature, surface tension and latent heat are presented. First results for the thermodynamics of four-flavour QCD with an improved staggered action are also presented. They indicate similarly large improvement factors for bulk thermodynamics.

  9. Hanford Reach Fall Chinook Redd

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField8,Dist.NewofGeothermal848 UnlimitedIntegrated Responsibleof07 Revision 0

  10. LANL reaches waste shipment milestone

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes |Is Your Home as ReadyAppointedKyungmin2010 top corporateJeffopenLANL

  11. Water Efficiency Improvements at Various Environmental Protection...

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

    Water Efficiency Improvements at Various Environmental Protection Agency Sites Water Efficiency Improvements at Various Environmental Protection Agency Sites Water Efficiency...

  12. Improving alternative fuel utilization: detailed kinetic combustion...

    Energy Savers [EERE]

    Improving alternative fuel utilization: detailed kinetic combustion modeling & experimental testing Improving alternative fuel utilization: detailed kinetic combustion modeling &...

  13. Improved recovery demonstration for Williston Basin carbonates. Annual report, June 10, 1995--June 9, 1996

    SciTech Connect (OSTI)

    Carrell, L.A.; Sippel, M.A.

    1996-09-01T23:59:59.000Z

    The purpose of this project is to demonstrate targeted infill and extension drilling opportunities, better determinations of oil-in-place, methods for improved completion efficiency and the suitability of waterflooding in Red River and Ratcliffe shallow-shelf carbonate reservoirs in the Williston Basin, Montana, North Dakota and South Dakota. Improved reservoir characterization utilizing three-dimensional and multi-component seismic are being investigated for identification of structural and stratigraphic reservoir compartments. These seismic characterization tools are integrated with geological and engineering studies. Improved completion efficiency is being tested with extended-reach jetting lance and other ultra-short-radius lateral technologies. Improved completion efficiency, additional wells at closer spacing and better estimates of oil in place will result in additional oil recovery by primary and enhanced recovery processes.

  14. Improved recovery demonstration for Williston basin carbonates. Annual report, June 10, 1994--June 9, 1995

    SciTech Connect (OSTI)

    Sippel, M.; Zinke, S.; Magruder, G.; Eby, D.

    1995-09-01T23:59:59.000Z

    The purpose of this project is to demonstrate targeted infill and extension drilling opportunities, better determinations of oil-in-place, methods for improved completion efficiency and the suitability of waterflooding in Red River and Ratcliffe shallow-shelf carbonate reservoirs in the Williston Basin, Montana, North Dakota and South Dakota. Improved reservoir characterization utilizing three-dimensional and multi-component seismic are being investigated for identification of structural and stratigraphic reservoir compartments. These seismic characterization tools are integrated with geological and engineering studies. Improved completion efficiency is being tested with extended-reach jetting lance and other ultra-short-radius lateral technologies. Improved completion efficiency, additional wells at closer spacing and better estimates of oil in place will result in additional oil recovery by primary and enhanced recovery processes.

  15. Understanding and Improving Software Productivity

    E-Print Network [OSTI]

    Scacchi, Walt

    Understanding and Improving Software Productivity Walt Scacchi Institute for Software Research;2 Introduction · What affects software productivity? ­ Software productivity has been one of the most studied aspects of software engineering ­ Goal: review sample of empirical studies of software productivity

  16. Hamilton County- Home Improvement Program

    Broader source: Energy.gov [DOE]

    The Hamilton County, Ohio, Home Improvement Program (HIP) was originally initiated in 2002, and then reinstated in May 2008. The HIP loan allows homeowners in Hamilton County communities to borrow...

  17. Collimator application for microchannel plate image intensifier resolution improvement

    DOE Patents [OSTI]

    Thomas, Stanley W. (Livermore, CA)

    1996-02-27T23:59:59.000Z

    A collimator is included in a microchannel plate image intensifier (MCPI). Collimators can be useful in improving resolution of MCPIs by eliminating the scattered electron problem and by limiting the transverse energy of electrons reaching the screen. Due to its optical absorption, a collimator will also increase the extinction ratio of an intensifier by approximately an order of magnitude. Additionally, the smooth surface of the collimator will permit a higher focusing field to be employed in the MCP-to-collimator region than is currently permitted in the MCP-to-screen region by the relatively rough and fragile aluminum layer covering the screen. Coating the MCP and collimator surfaces with aluminum oxide appears to permit additional significant increases in the field strength, resulting in better resolution.

  18. Improved Prediction of the Doppler Effect in TRISO Fuel

    SciTech Connect (OSTI)

    J. Ortensi; A.M. Ougouag

    2009-05-01T23:59:59.000Z

    The Doppler feedback mechanism is a major contributor to the passive safety of gas-cooled, graphite-moderated High Temperature Reactors that use fuel based on TRISO particles. It follows that the correct prediction of the magnitude and time-dependence of this feedback effect is essential to the conduct of safety analyses for these reactors. Since the effect is directly dependent on the actual temperature reached by the fuel during transients, the underlying phenomena of heat transfer and temperature rise must be correctly predicted. This paper presents an improved model for the TRISO particle and its thermal behavior during transients. The improved approach incorporates an explicit TRISO heat conduction model to better quantify the time dependence of the temperature in the various layers of the TRISO particle, including its fuel central zone. There follows a better treatment of the Doppler Effect within said fuel zone. The new model is based on a 1-D analytic solution for composite media using the Green’s function technique. The modeling improvement takes advantage of some of the physical behavior of TRISO fuel under irradiation and includes a distinctive look at the physics of the neutronic Doppler Effect. The new methodology has been implemented within the coupled R-Z nodal diffusion code CYNOD-THERMIX. The new model has been applied to the analysis of earthquakes (presented in a companion paper). In this paper, the model is applied to the control rod ejection event, as specified in the OECD PBMR-400 benchmark, but with temperature dependent thermal properties. The results obtained for this transient using the enhanced code are a considerable improvement over the predictions of the original code. The incorporation of the enhanced model shows that the Doppler Effect plays a more significant role than predicted by the original unenhanced model based on the THERMIX homogenized fuel region model. The new model shows that the overall energy generation during the rod ejection transient is significantly lower than predicted by the unenhanced model. The fuel temperature reaches a slightly higher maximum, but at no time does it approach the nominal allowable TRISO fuel temperature. The analyses with the enhanced model also show that the reactor period during the cool down is larger than previously predicted with the homogenous fuel region model.

  19. Energy Impacts of Productivity Improvements in Manufacturing 

    E-Print Network [OSTI]

    Mitrovic, B.; Muller, M. R.

    2002-01-01T23:59:59.000Z

    for potential improvements in energy use in concert with examination of waste streams and potential productivity improvements. The benefits of this new approach are substantial in particular with respect to productivity improvements. Such projects are much...

  20. Improving Inventory Control Using Forecasting

    E-Print Network [OSTI]

    Balandran, Juan

    2005-12-16T23:59:59.000Z

    EMGT 835 FIELD PROJECT: Improving Inventory Control Using Forecasting By Juan Mario Balandran jmbg@hotmail.com Master of Science The University of Kansas Fall Semester, 2005 An EMGT Field Project report submitted...............................................................................................................................................10 Current Inventory Forecast Process ...........................................................................................10 Development of Alternative Forecast Process...

  1. Improvement February 28 & 29, 2012

    E-Print Network [OSTI]

    New Mexico, University of

    HR Process Improvement Forums February 28 & 29, 2012 #12;Agenda Updates ­ New initiatives Resources Education Verification Request ­ Found in Employment Forms on the HR Web Page Researching other avenues ­ Diploma Translations ­ NM Department of Education for verification of High School diploma #12

  2. UNCONVENTIONAL METHODS FOR YIELD IMPROVEMENT

    E-Print Network [OSTI]

    Beckermann, Christoph

    methods (active heating and cooling, directional solidifi- cation) Novel yield improvement techniques through a vari- ety of active heating and cooling schemes. It is envisioned that the techniques will allow techniques for decreasing the size and number of risers re- quired to produce quality castings

  3. 3, 435470, 2006 Improved surface

    E-Print Network [OSTI]

    Boyer, Edmond

    related to off-shore activities require the knowledge of accurate sur- face winds and sea states on fineOSD 3, 435­470, 2006 Improved surface wind resolution A. Bentamy et al. Title Page Abstract near real time surface wind resolution over the Mediterranean Sea A. Bentamy, H.-L. Ayina, P

  4. Zymomonas with improved xylose utilization

    DOE Patents [OSTI]

    Viitanen, Paul V. (West Chester, PA); Tao, Luan (Havertown, PA); Zhang, Yuying (New Hope, PA); Caimi, Perry G. (Kennett Square, PA); McCutchen, Carol M. (Wilmington, DE); McCole, Laura (East Fallowfield, PA); Zhang, Min (Lakewood, CO); Chou, Yat-Chen (Lakewood, CO); Franden, Mary Ann (Centennial, CO)

    2011-08-16T23:59:59.000Z

    Strains of Zymomonas were engineered by introducing a chimeric xylose isomerase gene that contains a mutant promoter of the Z. mobilis glyceraldehyde-3-phosphate dehydrogenase gene. The promoter directs increased expression of xylose isomerase, and when the strain is in addition engineered for expression of xylulokinase, transaldolase and transketolase, improved utilization of xylose is obtained.

  5. Improved photovoltaic cells and electrodes

    DOE Patents [OSTI]

    Skotheim, T.A.

    1983-06-29T23:59:59.000Z

    Improved photovoltaic cells and electrodes for use therein, particularly electrodes employing amorphous silicon or polyacetylene coating are produced by a process which includes filling pinholes or porous openings in the coatings by electrochemical oxidation of selected monomers to deposit insulating polymer in the openings.

  6. What are Improvement Partnerships? "VCHIPisaperfectexampleofhowstategroupscancometogetheraroundacommongoaland

    E-Print Network [OSTI]

    Hayden, Nancy J.

    and knowledge, IPs increase the strength and quality of health care reform efforts for the nation as a whole the will and knowledge for sustainable change across the health care delivery system. Other states have expressed measurement- based efforts and a systems approach to improve the quality of children's health care. IPs draw

  7. Managing Critical Management Improvement Initiatives

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

    2003-10-01T23:59:59.000Z

    Provides requirements and responsibilities for planning, executing and assessing critical management improvement initiatives within DOE. DOE N 251.59, dated 9/27/2004, extends this Notice until 10/01/2005. Archived 11-8-10. Does not cancel other directives.

  8. Water Efficiency Improvements at Various Environmental Protection...

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

    Water Efficiency Improvements at Various Environmental Protection Agency Sites: Best Management Practices Case Study 12-LaboratoryMedical Equipment Water Efficiency Improvements...

  9. Further improvement of conventional diesel NOx aftertreatment...

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

    FEV GmbHOct 5 th 2011 DEER 2 Outline Introduction: Status of T2B5 LNT passenger car applications Improvement potential of engine out emissions Improvement...

  10. Industrial Energy Efficiency Projects Improve Competitiveness...

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

    Energy Efficiency Projects Improve Competitiveness and Protect Jobs Industrial Energy Efficiency Projects Improve Competitiveness and Protect Jobs U.S. Department of Energy (DOE)...

  11. CRAD, Feedback and Continuous Improvement - DOE Headquarters...

    Office of Environmental Management (EM)

    CRAD, Feedback and Continuous Improvement - DOE Headquarters - December 4, 2007 CRAD, Feedback and Continuous Improvement - DOE Headquarters - December 4, 2007 December 4, 2007...

  12. Improved Solvers for Advanced Engine Combustion Simulation |...

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

    Improved Solvers for Advanced Engine Combustion Simulation Improved Solvers for Advanced Engine Combustion Simulation 2013 DOE Hydrogen and Fuel Cells Program and Vehicle...

  13. Durability Improvements Through Degradation Mechanism Studies...

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

    Improvements Through Degradation Mechanism Studies Durability Improvements Through Degradation Mechanism Studies Presented at the Department of Energy Fuel Cell Projects Kickoff...

  14. Advanced Manufacturing Initiative Improves Turbine Blade Productivity...

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

    Advanced Manufacturing Initiative Improves Turbine Blade Productivity Advanced Manufacturing Initiative Improves Turbine Blade Productivity May 20, 2011 - 2:56pm Addthis This is an...

  15. Vehicle Fuel Economy Improvement through Thermoelectric Waste...

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

    Fuel Economy Improvement through Thermoelectric Waste Heat Recovery Vehicle Fuel Economy Improvement through Thermoelectric Waste Heat Recovery 2005 Diesel Engine Emissions...

  16. Smart Grid Investments Improve Grid Reliability, Resilience,...

    Office of Environmental Management (EM)

    Investments Improve Grid Reliability, Resilience, and Storm Responses (November 2014) Smart Grid Investments Improve Grid Reliability, Resilience, and Storm Responses (November...

  17. Improving Strategies via SMT Solving

    E-Print Network [OSTI]

    Gawlitza, Thomas Martin

    2011-01-01T23:59:59.000Z

    We consider the problem of computing numerical invariants of programs by abstract interpretation. Our method eschews two traditional sources of imprecision: (i) the use of widening operators for enforcing convergence within a finite number of iterations (ii) the use of merge operations (often, convex hulls) at the merge points of the control flow graph. It instead computes the least inductive invariant expressible in the domain at a restricted set of program points, and analyzes the rest of the code en bloc. We emphasize that we compute this inductive invariant precisely. For that we extend the strategy improvement algorithm of [Gawlitza and Seidl, 2007]. If we applied their method directly, we would have to solve an exponentially sized system of abstract semantic equations, resulting in memory exhaustion. Instead, we keep the system implicit and discover strategy improvements using SAT modulo real linear arithmetic (SMT). For evaluating strategies we use linear programming. Our algorithm has low polynomial s...

  18. Process Improvement at Army Installations

    E-Print Network [OSTI]

    Northrup, J.; Smith, E. D.; Lin, M.; Baird, J.

    recommendations are for the Fill and Press line where most of the Level I focused LESSONS LEARNED On completion of the project, the researchers assessed the results and some of the 198 ESL-IE-97-04-31 Proceedings from the Nineteenth Industrial Energy.... Finally, the energy issues included initiate an energy team; install energy efficient lighting; and decommission unused steam lines. After the first cost, savings, and simple payback time was calculated for all of the proposed improvements, a...

  19. Improving the performance of BITNET

    E-Print Network [OSTI]

    Ku, Chih-Hsiung

    1989-01-01T23:59:59.000Z

    diff'erent heuristics have been adopted to design large and distributed computer networks. The cut-saturation heuristic has been shown to be a, very ef- ficient method for topological design. In this thesis, the cut-saturation heunst&c is employed... to improve the performance of BITNET. In addition, a topology con- straint (retention of BITNET connectivitv) is also adopted. The traditionai cut-saturation heuristic as reported in the literature uses a single capacity for simplicity. A combination...

  20. Soil Sampling to Demonstrate Compliance with Department of Energy Radiological Clearance Requirements for the ALE Unit of the Hanford Reach National Monument

    SciTech Connect (OSTI)

    Fritz, Brad G.; Dirkes, Roger L.; Napier, Bruce A.

    2007-04-01T23:59:59.000Z

    The Hanford Reach National Monument consists of several units, one of which is the Fitzner/Eberhardt Arid Lands Ecology Reserve (ALE) Unit. This unit is approximately 311 km2 of shrub-steppe habitat located to the south and west of Highway 240. To fulfill internal U. S. Department of Energy (DOE) requirements prior to any radiological clearance of land, DOE must evaluate the potential for residual radioactive contamination on this land and determine compliance with the requirements of DOE Order 5400.5. Historical soil monitoring conducted on ALE indicated soil concentrations of radionuclides were well below the Authorized Limits. However, the historical sampling was done at a limited number of sampling locations. Therefore, additional soil sampling was conducted to determine if the concentrations of radionuclides in soil on the ALE Unit were below the Authorized Limits. This report contains the results of 50 additional soil samples. The 50 soil samples collected from the ALE Unit all had concentrations of radionuclides far below the Authorized Limits. The average concentrations for all detectable radionuclides were less than the estimated Hanford Site background. Furthermore, the maximum observed soil concentrations for the radionuclides included in the Authorized Limits would result in a potential annual dose of 0.14 mrem assuming the most probable use scenario, a recreational visitor. This potential dose is well below the DOE 100-mrem per year dose limit for a member of the public. Spatial analysis of the results indicated no observable statistically significant differences between radionuclide concentrations across the ALE Unit. Furthermore, the results of the biota dose assessment screen, which used the ResRad Biota code, indicated that the concentrations of radionuclides in ALE Unit soil pose no significant health risk to biota.

  1. JOB DESCRIPTION Title: Continuous Improvement Specialist

    E-Print Network [OSTI]

    Heller, Barbara

    or Six Sigma-based continuous improvement methods. Certification: Six Sigma Black Belt or Green Belt

  2. Synchronized sampling improves fault location

    SciTech Connect (OSTI)

    Kezunovic, M. [Texas A and M Univ., College Station, TX (United States)] [Texas A and M Univ., College Station, TX (United States); Perunicic, B. [Lamar Univ., Beaumont, TX (United States)] [Lamar Univ., Beaumont, TX (United States)

    1995-04-01T23:59:59.000Z

    Transmission line faults must be located accurately to allow maintenance crews to arrive at the scene and repair the faulted section as soon as possible. Rugged terrain and geographical layout cause some sections of power transmission lines to be difficult to reach. In the past, a variety of fault location algorithms were introduced as either an add-on feature in protective relays or stand-alone implementation in fault locators. In both cases, the measurements of current and voltages were taken at one terminal of a transmission line only. Under such conditions, it may become difficult to determine the fault location accurately, since data from other transmission line ends are required for more precise computations. In the absence of data from the other end, existing algorithms have accuracy problems under several circumstances, such as varying switching and loading conditions, fault infeed from the other end, and random value of fault resistance. Most of the one-end algorithms were based on estimation of voltage and current phasors. The need to estimate phasors introduces additional difficulty in high-speed tripping situations where the algorithms may not be fast enough in determining fault location accurately before the current signals disappear due to the relay operation and breaker opening. This article introduces a unique concept of high-speed fault location that can be implemented either as a simple add-on to the digital fault recorders (DFRs) or as a stand-alone new relaying function. This advanced concept is based on the use of voltage and current samples that are synchronously taken at both ends of a transmission line. This sampling technique can be made readily available in some new DFR designs incorporating receivers for accurate sampling clock synchronization using the satellite Global Positioning System (GPS).

  3. Steam Cracker Furnace Energy Improvements

    E-Print Network [OSTI]

    Gandler, T.

    & challenges in steam cracking ? Energy efficiency improvements Overview Baytown Olefins Plant Page 3 Baytown Complex ?One of world?s largest integrated, most technologically advanced petroleum/petrochemical complexes ?~3,400 acres along Houston Ship... wall temperatures Furnace tube hydrocarbon + steam 0 0.2 0.4 0.6 0.8 1 1.2 1 2 time C o k e l a y e r Page 8 Steam Cracker Furnace Energy Efficiency ? Overall energy efficiency of furnace depends on ? Run length or % of time...

  4. Sandia technology & entrepreneurs improve Lasik

    ScienceCinema (OSTI)

    Neal, Dan; Turner, Tim

    2014-02-26T23:59:59.000Z

    Former Sandian Dan Neal started his company, WaveFront Sciences, based on wavefront sensing metrology technologies licensed from Sandia National Laboratories and by taking advantage of its Entrepreneurial Separation to Transfer Technology (ESTT) program. Abbott Medical Optics since acquired WaveFront and estimates that one million patients have improved the quality of their vision thanks to its products. ESTT is a valuable tool which allows Sandia to transfer technology to the private sector and Sandia employees to leave the Labs in order to start up new technology companies or help expand existing companies.

  5. Instrumentation for severe processes improved

    SciTech Connect (OSTI)

    Platt, R.J.

    1983-01-31T23:59:59.000Z

    This article discusses the evolution of equipment to solve or at least mitigate the serious control problems involved in petroleum refineries, where control valves and sensors become fouled, lead lines plug, and overall process performance is impaired. Points out that visbreaking, coal liquefaction and residfining (resid desulfurization) are all processes that impose severe conditions on process instrumentation. Reports that experience at the Exxon Coal Liquefaction Plant (ECLP) has shown that conventional cylindrical thermowells are subject to severe erosion, which can be prevented by eliminating mechanical bending through improved shape.

  6. Superalloy material with improved weldability

    DOE Patents [OSTI]

    Allen, David B.; Wagner, Gregg P.; Seth, Brij B.

    2004-02-24T23:59:59.000Z

    A fusion weldable superalloy containing 0.005-0.5 wt. % scandium. In one embodiment, the superalloy may have a composition similar to IN-939 alloy, but having added scandium and having only 0.005-0.040 wt. % zirconium. A gas turbine component may be formed by an investment casting of such a scandium-containing superalloy, and may include a fusion weld repaired area. A scandium-containing nickel-based superalloy coated with an MCrAlY bond coat will have improved cyclic oxidation resistance due to the sulfur-gettering effect of the scandium.

  7. Improving Energy Efficiency of Auxiliaries

    SciTech Connect (OSTI)

    Carl T. Vuk

    2001-12-12T23:59:59.000Z

    The summaries of this report are: Economics Ultimately Dictates Direction; Electric Auxiliaries Provide Solid Benefits. The Impact on Vehicle Architecture Will be Important; Integrated Generators With Combined With Turbo Generators Can Meet the Electrical Demands of Electric Auxiliaries; Implementation Will Follow Automotive 42V Transition; Availability of Low Cost Hardware Will Slow Implementation; Industry Leadership and Cooperation Needed; Standards and Safety Protocols Will be Important. Government Can Play an Important Role in Expediting: Funding Technical Development; Incentives for Improving Fuel Economy; Developing Standards, Allowing Economy of Scale; and Providing Safety Guidelines.

  8. Improving OpenMP Scaling

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC) EnvironmentalGyroSolé(tm)HydrogenRFP » Important Trinity /Energy Improving

  9. Method for improving instrument response

    DOE Patents [OSTI]

    Hahn, David W. (7528 Oxford Cir., Dublin, Alameda County, CA 94568); Hencken, Kenneth R. (2665 Calle Alegre, Pleasanton, Alameda County, CA 94566); Johnsen, Howard A. (5443 Celeste Ave., Livermore, Alameda County, CA 94550); Flower, William L. (5447 Theresa Way, Livermore, Alameda County, CA 94550)

    2000-01-01T23:59:59.000Z

    This invention pertains generally to a method for improving the accuracy of particle analysis under conditions of discrete particle loading and particularly to a method for improving signal-to-noise ratio and instrument response in laser spark spectroscopic analysis of particulate emissions. Under conditions of low particle density loading (particles/m.sup.3) resulting from low overall metal concentrations and/or large particle size uniform sampling can not be guaranteed. The present invention discloses a technique for separating laser sparks that arise from sample particles from those that do not; that is, a process for systematically "gating" the instrument response arising from "sampled" particles from those responses which do not, is dislosed as a solution to his problem. The disclosed approach is based on random sampling combined with a conditional analysis of each pulse. A threshold value is determined for the ratio of the intensity of a spectral line for a given element to a baseline region. If the threshold value is exceeded, the pulse is classified as a "hit" and that data is collected and an average spectrum is generated from an arithmetic average of "hits". The true metal concentration is determined from the averaged spectrum.

  10. How Control Improvements Save Process Heater Fuel

    E-Print Network [OSTI]

    Dukelow, S. G.

    1979-01-01T23:59:59.000Z

    , including instrumentation and controls. This provides an incentive for improving existing installations, especially for process heaters as compared to boilers. Control systems which optimize combustion air while improving other performance attributes...

  11. Advanced fenestration systems for improved daylight performance

    E-Print Network [OSTI]

    Selkowitz, S.; Lee, E.S.

    1998-01-01T23:59:59.000Z

    Systems for Improved Daylight Performance S. Selkowitz, E.S.Systems for Improved Daylight Performance S. Selkowitz, E.S.Introduction The use of daylight to replace or supplement

  12. How Control Improvements Save Process Heater Fuel 

    E-Print Network [OSTI]

    Dukelow, S. G.

    1979-01-01T23:59:59.000Z

    , including instrumentation and controls. This provides an incentive for improving existing installations, especially for process heaters as compared to boilers. Control systems which optimize combustion air while improving other performance attributes...

  13. Productivity Improvement of a Manual Assembly Line

    E-Print Network [OSTI]

    Yerasi, Pranavi

    2012-10-19T23:59:59.000Z

    The current project addresses the productivity improvement of a manual assembly line by making use of operations analysis in the framework of Lean production. A methodology is proposed that helps to improve the productivity of any production process...

  14. Nontoxic quantum dot research improves solar cells

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

    Nontoxic quantum dot research improves solar cells Nontoxic quantum dot research improves solar cells Solar cells made with low-cost, nontoxic copper-based quantum dots can achieve...

  15. Recent performance improvements on FXR

    SciTech Connect (OSTI)

    Kulke, B.; Kihara, R.

    1983-01-01T23:59:59.000Z

    The FXR machine is a nominal 4-kA, 20-MeV, linear-induction, electron accelerator for flash radiography at LLNL. The machine met its baseline requirements in March 1982. Since then, the performance has been greatly improved. We have achieved stable and repeatable beam acceleration and transport, with over 80% transmission to the tungsten bremsstrahlung target located some 35 m downstream. For best stability, external-beam steering has been eliminated almost entirely. We regularly produce over 500 Roentgen at 1 m from the target (TLD measurement), with a radiographic spot size of 3 to 5 mm. Present efforts are directed towards the development of a 4-kA tune, working interactively with particle-field and beam transport code models. A remaining uncertainty is the possible onset of RF instabilities at the higher current levels.

  16. Improvements of biomass deconstruction enzymes

    SciTech Connect (OSTI)

    Sale, K. L.

    2012-03-01T23:59:59.000Z

    Sandia National Laboratories and DSM Innovation, Inc. collaborated on the investigation of the structure and function of cellulases from thermophilic fungi. Sandia's role was to use its expertise in protein structure determination and X-ray crystallography to solve the structure of these enzymes in their native state and in their substrate and product bound states. Sandia was also tasked to work with DSM to use the newly solved structure to, using computational approaches, analyze enzyme interactions with both bound substrate and bound product; the goal being to develop approaches for rationally designing improved cellulases for biomass deconstruction. We solved the structures of five cellulases from thermophilic fungi. Several of these were also solved with bound substrate/product, which allowed us to predict mutations that might enhance activity and stability.

  17. Data quality improvements for FAA

    SciTech Connect (OSTI)

    Perry, R.; Marlman, K.; Olson, D.; Werner, P.

    1997-09-01T23:59:59.000Z

    Effective communication among air safety professionals is only as good as the information being communicated. Data sharing cannot be effective unless the data are relevant to aviation safety problems, and decisions based on faulty data are likely to be invalid. The validity of aviation safety data depends on satisfying two primary characteristics. Data must accurately represent or conform to the real world (conformance), and it must be relevant or useful to addressing the problems at hand (utility). The FAA, in efforts to implement the Safety Performance Analysis System (SPAS), identified significant problems in the quality of the data which SPAS and FAA air safety professionals would use in defining the state of aviation safety in the US. These finding were reinforced by Department of Transportation Inspector General and General Accounting Office investigations into FAA surveillance of air transport operations. Many recent efforts to improve data quality have been centered on technological solutions to the problems. They concentrate on reducing errors in the data (conformance), but they cannot adequately address the relationship of data to need (utility). Sandia National Laboratories, working with the FAA`s Airport and Aircraft Safety Research and Development Division and the Flight Standards Service, has been involved in four programs to assist FAA in addressing their data quality problems. The Sandia approach has been data-driven rather than technology-driven. In other words, the focus has been on first establishing the data requirements by analyzing the FAA`s surveillance and decision-making processes. This process analysis looked at both the data requirements and the methods used to gather the data in order to address both the conformance and utility problems inherent in existing FAA data systems. This paper discusses Sandia`s data quality programs and their potential improvements to the safety analysis processes and surveillance programs of the FAA.

  18. Improving alternative fuel utilization: detailed kinetic combustion...

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

    Improving alternative fuel utilization: detailed kinetic combustion modeling & experimental testing Salvador Aceves, Daniel Flowers, Bill Pitz, Charlie Westbrook, Emma Silke,...

  19. Secretary Richardson Accepts Recommendations for Improving Security...

    National Nuclear Security Administration (NNSA)

    Secretary Richardson Accepts Recommendations for Improving Security at Nuclear Weapons Laboratories | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS...

  20. ENGINEERED INTERFACE CHEMISTRY TO IMPROVE THE MECHANICAL PROPERTIES OF CARBON FIBER COMPOSITES CURED BY ELECTRON BEAM

    SciTech Connect (OSTI)

    Vautard, Frederic [ORNL; Grappe, Hippolyte A. [Oak Ridge Institute for Science and Education (ORISE); Ozcan, Soydan [ORNL

    2014-01-01T23:59:59.000Z

    A reactive sizing was designed to achieve high levels of interfacial adhesion and mechanical properties with a carbon fiber-acrylate system cured by electron beam (EB). The sizing was made of a partially cured epoxy sizing with a high density of pendant functional groups (acrylate functionality) able to generate a covalent bonding with the matrix. The interlaminar shear strength was clearly improved from 61 MPa to 81 MPa (+ 33 %) without any post-processing, reaching a similar value to the one obtained with the same system cured by a thermal treatment. Observation of the fracture profiles clearly highlighted a change in the fracture mechanism from a purely adhesive failure to a cohesive failure. Such improvements of the mechanical properties of carbon fiber composites cured by EB, without any post-cure, have not been reported previously to the best of our knowledge. This constitutes a breakthrough for the industrial development of composites EB curing.

  1. High-Beta, Improved Confinement Reversed-Field Pinch Plasmas at High Density

    SciTech Connect (OSTI)

    Wyman, M. [University of Wisconsin, Madison; Chapman, B. E. [University of Wisconsin, Madison; Ahn, J. W. [University of Wisconsin, Madison; Almagri, A. [University of Wisconsin, Madison; Anderson, J. [University of Wisconsin, Madison; Bonomo, F. [Consorzio RFX, Italy; Brower, D. L. [University of California, Los Angeles; Combs, Stephen Kirk [ORNL; Craig, D. [University of Wisconsin, Madison; Hartog, D. J. Den [University of Wisconsin, Madison; Deng, B. [University of California, Los Angeles; Ding, W. X. [University of California, Los Angeles; Ebrahimi, F. [University of Wisconsin, Madison; Ennis, D. [University of Wisconsin, Madison; Fiksel, G. [University of Wisconsin, Madison; Foust, Charles R [ORNL; Franz, P. [EURATOM / ENEA, Italy; Gangadhara, S. [University of Wisconsin, Madison; Goetz, J. [University of Wisconsin, Madison; O'Connell, R, [University of Wisconsin, Madison; Oliva, S. [University of Wisconsin, Madison; Prager, S. C. [University of Wisconsin, Madison; Reusch, J. A. [University of Wisconsin, Madison; Sarff, J. S. [University of Wisconsin, Madison; Stephens, H. D. [University of Wisconsin, Madison; Yates, T. [University of California, Los Angeles

    2008-01-01T23:59:59.000Z

    In Madison Symmetric Torus Dexter et al., Fusion Technol. 19, 131 1991 discharges where improved confinement is brought about by modification of the current profile, pellet injection has quadrupled the density, reaching ne=41019 m 3. Without pellet injection, the achievable density in improved confinement discharges had been limited by edge-resonant tearing instability. With pellet injection, the total beta has been increased to 26%, and the energy confinement time is comparable to that at low density. Pressure-driven local interchange and global tearing are predicted to be linearly unstable. Interchange has not yet been observed experimentally, but there is possible evidence of pressure-driven tearing, an instability usually driven by the current gradient in the reversed-field pinch.

  2. High-{beta}, improved confinement reversed-field pinch plasmas at high density

    SciTech Connect (OSTI)

    Wyman, M. D.; Chapman, B. E.; Ahn, J. W.; Almagri, A. F.; Anderson, J. K.; Den Hartog, D. J.; Ebrahimi, F.; Ennis, D. A.; Fiksel, G.; Gangadhara, S.; Goetz, J. A.; O'Connell, R.; Oliva, S. P.; Prager, S. C.; Reusch, J. A.; Sarff, J. S.; Stephens, H. D. [Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706 (United States); Bonomo, F.; Franz, P. [Consorzio RFX, Corso Stati Uniti 4, 35127 Padova (Italy); Brower, D. L. [Department of Physics and Astronomy, University of California at Los Angeles, Los Angeles, California 90095-1594 (United States)] (and others)

    2008-01-15T23:59:59.000Z

    In Madison Symmetric Torus [Dexter et al., Fusion Technol. 19, 131 (1991)] discharges where improved confinement is brought about by modification of the current profile, pellet injection has quadrupled the density, reaching n{sub e}=4x10{sup 19} m{sup -3}. Without pellet injection, the achievable density in improved confinement discharges had been limited by edge-resonant tearing instability. With pellet injection, the total beta has been increased to 26%, and the energy confinement time is comparable to that at low density. Pressure-driven local interchange and global tearing are predicted to be linearly unstable. Interchange has not yet been observed experimentally, but there is possible evidence of pressure-driven tearing, an instability usually driven by the current gradient in the reversed-field pinch.

  3. Improving Attack Graph Visualization through Data Reduction and Attack Grouping

    SciTech Connect (OSTI)

    John Homer; Ashok Varikuti; Xinming Ou; Miles A. McQueen

    2008-09-01T23:59:59.000Z

    Various tools exist to analyze enterprise network systems and to produce attack graphs detailing how attackers might penetrate into the system. These attack graphs, however, are often complex and difficult to comprehend fully, and a human user may find it problematic to reach appropriate configuration decisions. This paper presents methodologies that can 1) automatically identify portions of an attack graph that do not help a user to understand the core security problems and so can be trimmed, and 2) automatically group similar attack steps as virtual nodes in a model of the network topology, to immediately increase the understandability of the data. We believe both methods are important steps toward improving visualization of attack graphs to make them more useful in configuration management for large enterprise networks. We implemented our methods using one of the existing attack-graph toolkits. Initial experimentation shows that the proposed approaches can 1) significantly reduce the complexity of attack graphs by trimming a large portion of the graph that is not needed for a user to understand the security problem, and 2) significantly increase the accessibility and understandability of the data presented in the attack graph by clearly showing, within a generated visualization of the network topology, the number and type of potential attacks to which each host is exposed.

  4. Improved methods for simulating nearly extremal binary black holes

    E-Print Network [OSTI]

    Mark A. Scheel; Matthew Giesler; Daniel A. Hemberger; Geoffrey Lovelace; Kevin Kuper; Michael Boyle; Bela Szilagyi; Lawrence E. Kidder

    2014-12-04T23:59:59.000Z

    Astrophysical black holes could be nearly extremal (that is, rotating nearly as fast as possible); therefore, nearly extremal black holes could be among the binaries that current and future gravitational-wave observatories will detect. Predicting the gravitational waves emitted by merging black holes requires numerical-relativity simulations, but these simulations are especially challenging when one or both holes have mass $m$ and spin $S$ exceeding the Bowen-York limit of $S/m^2=0.93$. We present improved methods that enable us to simulate merging, nearly extremal black holes more robustly and more efficiently. We use these methods to simulate an unequal-mass, precessing binary black hole coalescence, where the larger black hole has $S/m^2=0.99$. We also use these methods to simulate a non-precessing binary black hole coalescence, where both black holes have $S/m^2=0.994$, nearly reaching the Novikov-Thorne upper bound for holes spun up by thin accretion disks. We demonstrate numerical convergence and estimate the numerical errors of the waveforms; we compare numerical waveforms from our simulations with post-Newtonian and effective-one-body waveforms; we compare the evolution of the black-hole masses and spins with analytic predictions; and we explore the effect of increasing spin magnitude on the orbital dynamics (the so-called "orbital hangup" effect).

  5. An Improved Cluster Richness Estimator

    SciTech Connect (OSTI)

    Rozo, Eduardo; /Ohio State U.; Rykoff, Eli S.; /UC, Santa Barbara; Koester, Benjamin P.; /Chicago U. /KICP, Chicago; McKay, Timothy; /Michigan U.; Hao, Jiangang; /Michigan U.; Evrard, August; /Michigan U.; Wechsler, Risa H.; /SLAC; Hansen, Sarah; /Chicago U. /KICP, Chicago; Sheldon, Erin; /New York U.; Johnston, David; /Houston U.; Becker, Matthew R.; /Chicago U. /KICP, Chicago; Annis, James T.; /Fermilab; Bleem, Lindsey; /Chicago U.; Scranton, Ryan; /Pittsburgh U.

    2009-08-03T23:59:59.000Z

    Minimizing the scatter between cluster mass and accessible observables is an important goal for cluster cosmology. In this work, we introduce a new matched filter richness estimator, and test its performance using the maxBCG cluster catalog. Our new estimator significantly reduces the variance in the L{sub X}-richness relation, from {sigma}{sub lnL{sub X}}{sup 2} = (0.86 {+-} 0.02){sup 2} to {sigma}{sub lnL{sub X}}{sup 2} = (0.69 {+-} 0.02){sup 2}. Relative to the maxBCG richness estimate, it also removes the strong redshift dependence of the richness scaling relations, and is significantly more robust to photometric and redshift errors. These improvements are largely due to our more sophisticated treatment of galaxy color data. We also demonstrate the scatter in the L{sub X}-richness relation depends on the aperture used to estimate cluster richness, and introduce a novel approach for optimizing said aperture which can be easily generalized to other mass tracers.

  6. Prospects for improved fusion reactors

    SciTech Connect (OSTI)

    Krakowski, R.A.; Miller, R.L.; Hagenson, R.L.

    1986-01-01T23:59:59.000Z

    Ideally, a new energy source must be capable of displacing old energy sources while providing both economic opportunities and enhanced environmental benefits. The attraction of an essentially unlimited fuel supply has generated a strong impetus to develop advanced fission breeders and, even more strongly, the exploitation of nuclear fusion. Both fission and fusion systems trade a reduced fuel charge for a more capital-intensive plant needed to utilize a cheaper and more abundant fuel. Results from early conceptual designs of fusion power plants, however, indicated a capital intensiveness that could override cost savings promised by an inexpensive fuel cycle. Early warnings of these problems appeared, and generalized routes to more economically attractive systems have been suggested; specific examples have also recently been given. Although a direct reduction in the cost (and mass) of the fusion power core (FPC, i.e., plasma chamber, first wall, blanket, shield, coils, and primary structure) most directly reduces the overall cost of fusion power, with the mass power density (MPD, ratio of net electric power to FPC mass, kWe/tonne) being suggested as a figure-of-merit in this respect, other technical, safety/environmental, and institutional issues also enter into the definition of and direction for improved fusion concepts. These latter issues and related tradeoffs are discussed.

  7. Gasification Product Improvement Facility status

    SciTech Connect (OSTI)

    Carson, R.D.; Dixit, V.B.; Sadowski, R.S.; Thamaraichelvan, P.; Culberson, H.

    1995-11-01T23:59:59.000Z

    Department of Energy (DOE) has awarded a two phase contract for the construction of a Gasification Product Improvement Facility (GPIF) to develop an innovative air blown, dry bottom, pressurized fixed bed gasifier based on the patented PyGas{trademark} fixed bed process. The objective of the project is to provide a test site to support early commercialization of the Integrated Gasification Combined Cycle (IGCC) technology. The GPIF will be capable of processing run of mine high swelling coals that comprise 87% of all Eastern US coals. This program will generate useful scale up data that will be utilized to develop commercial size designs. The project will also support the development of a hot gas clean up subsystem and the gasifier infrastructure consisting of controls, special instrumentation and interconnects with Allegheny Power System`s host power plant, Fort Martin Station in Maidesville, West Virginia. This paper presents the status of the GPIF project. It describes the work performed in the past year on the PyGas process development, gasifier design, plant engineering/layout, tie in with the existing Fort Martin facility, procurement, site permitting and project scheduling.

  8. OPSAID improvements and capabilities report.

    SciTech Connect (OSTI)

    Halbgewachs, Ronald D.; Chavez, Adrian R.

    2011-08-01T23:59:59.000Z

    Process Control System (PCS) and Industrial Control System (ICS) security is critical to our national security. But there are a number of technological, economic, and educational impediments to PCS owners implementing effective security on their systems. Sandia National Laboratories has performed the research and development of the OPSAID (Open PCS Security Architecture for Interoperable Design), a project sponsored by the US Department of Energy Office of Electricity Delivery and Energy Reliability (DOE/OE), to address this issue. OPSAID is an open-source architecture for PCS/ICS security that provides a design basis for vendors to build add-on security devices for legacy systems, while providing a path forward for the development of inherently-secure PCS elements in the future. Using standardized hardware, a proof-of-concept prototype system was also developed. This report describes the improvements and capabilities that have been added to OPSAID since an initial report was released. Testing and validation of this architecture has been conducted in another project, Lemnos Interoperable Security Project, sponsored by DOE/OE and managed by the National Energy Technology Laboratory (NETL).

  9. Method to improve superconductor cable

    DOE Patents [OSTI]

    Borden, A.R.

    1984-03-08T23:59:59.000Z

    A method is disclosed of making a stranded superconductor cable having improved flexing and bending characteristics. In such method, a plurality of superconductor strands are helically wound around a cylindrical portion of a mandrel which tapers along a transitional portion to a flat end portion. The helically wound strands form a multistrand hollow cable which is partially flattened by pressure rollers as the cable travels along the transitional portion. The partially flattened cable is impacted with repeated hammer blows as the hollow cable travels along the flat end portion. The hammer blows flatten both the internal and the external surfaces of the strands. The cable is fully flattened and compacted by two sets of pressure rollers which engage the flat sides and the edges of the cable after it has traveled away from the flat end portion of the mandrel. The flattened internal surfaces slide easily over one another when the cable is flexed or bent so that there is very little possibility that the cable will be damaged by the necessary flexing and bending required to wind the cable into magnet coils.

  10. Improving pulverized coal plant performance

    SciTech Connect (OSTI)

    Regan, J.W.; Borio, R.W.; Palkes, M.; Mirolli, M. [ABB Combustion Engineering, Inc., Windsor, CT (United States); Wesnor, J.D. [ABB Environmental Systems, Birmingham, AL (United States); Bender, D.J. [Raytheon Engineers and Constructors, Inc., New York, NY (United States)

    1995-12-31T23:59:59.000Z

    A major deliverable of the U.S. Department of Energy (DOE) project ``Engineering Development of Advanced Coal-Fired Low-Emissions Boiler Systems`` (LEBS) is the design of a large, in this case 400 MWe, commercial generating unit (CGU) which will meet the Project objectives. The overall objective of the LEBS Project is to dramatically improve environmental performance of future pulverized coal fired power plants without adversely impacting efficiency or the cost of electricity. The DOE specified the use of near-term technologies, i.e., advanced technologies that partially developed, to reduce NO{sub x}, SO{sub 2} and particulate emissions to be substantially less than current NSPS limits. In addition, air toxics must be in compliance and waste must be reduced and made more disposable. The design being developed by the ABB Team is projected to meet all the contract objectives and to reduce emission of NO{sub x}, SO{sub 2} and particulates to one-fifth to one-tenth NSPS limits while increasing net station efficiency significantly and reducing the cost of electricity. This design and future work are described in the paper.

  11. Improving Traveler Information and Collecting Behavior Data with Smartphones

    E-Print Network [OSTI]

    Jariyasunant, Jerald

    2012-01-01T23:59:59.000Z

    processing data from mobile technologies. [108] Y. Asakura,at the intersection of mobile technology and transportation.smartphones and mobile technology have lead to far reaching

  12. Connecticut Weatherization Project Improves Lives, Receives National...

    Energy Savers [EERE]

    Families Energy and Money How to Save Energy, Money with Home Energy Upgrades Several energy-efficient improvements made to a senior care center in New Milford, Connecticut,...

  13. Supertruck - Improving Transportation Efficiency through Integrated...

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

    Research Supertruck - Improving Transportation Efficiency through Integrated Vehicle, Engine and Powertrain Research 2012 DOE Hydrogen and Fuel Cells Program and Vehicle...

  14. Graphene 'gateway' discovery opens possibilities for improved...

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

    Dawn Levy Communications 865.576.6448 Graphene 'gateway' discovery opens possibilities for improved energy technologies Computer simulations show a single proton (pink) can cross...

  15. Sandia National Laboratories: improving PV performance model...

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

    accuracy PV Performance Modeling Collaborative's New and Improved Website Is Launched On December 10, 2014, in Computational Modeling & Simulation, Energy, Facilities, News, News &...

  16. Sandia National Laboratories: improving PV performance model...

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

    technical rigor PV Performance Modeling Collaborative's New and Improved Website Is Launched On December 10, 2014, in Computational Modeling & Simulation, Energy, Facilities, News,...

  17. Improving Wind Turbine Gearbox Reliability: Preprint

    SciTech Connect (OSTI)

    Musial, W.; Butterfield, S.; McNiff, B.

    2007-06-01T23:59:59.000Z

    This paper describes a new research and development initiative to improve gearbox reliability in wind turbines begun at the National Renewable Energy Laboratory (NREL) in Golden, Colorado, USA.

  18. Rural Business Energy Efficiency Improvement Loan Program

    Broader source: Energy.gov [DOE]

    The Maryland Agricultural and Resource Based Industry Development Corporation (MARBIDCO) offers low interest loans for energy efficiency improvements to farms and rural businesses through the Rural...

  19. Mining Test Cases To Improve Software Maintenance

    E-Print Network [OSTI]

    Ziftci, Celal

    lifecycle, has many benefits for the final product, and islifecycle, has many benefits for the final product, and islifecycle to improve the quality of the final product.

  20. Energy-Efficiency Improvement Opportunities for the Textile Industry

    E-Print Network [OSTI]

    Hasanbeigi, Ali

    2010-01-01T23:59:59.000Z

    E. and Galitsky, C. , 2004. Energy-efficiency improvementL. , 2008 , Energy-efficiency improvement opportunities forMasanet, E. , 2010. Energy-efficiency Improvement and Cost

  1. Classroom HVAC: Improving ventilation and saving energy -- field study plan

    E-Print Network [OSTI]

    Apte, Michael G.; Faulkner, David; Hodgson, Alfred T.; Sullivan, Douglas P.

    2004-01-01T23:59:59.000Z

    in this study. Classroom HVAC: Improving Ventilation andV8doc.sas.com/sashtml. Classroom HVAC: Improving VentilationBerkeley, CA 94720. Classroom HVAC: Improving Ventilation

  2. Numerical Analysis Department Robustness improvement of

    E-Print Network [OSTI]

    Vuik, Kees

    Numerical Analysis Department Robustness improvement of polyhedral mesh method for airbag of polyhedral mesh method for airbag deployment simulations MASTER OF SCIENCE THESIS For the degree of Master entitled ROBUSTNESS IMPROVEMENT OF POLYHEDRAL MESH METHOD FOR AIRBAG DEPLOYMENT SIMULATIONS by SANTIAGO

  3. Testability Transformation --Program Transformation to Improve Testability

    E-Print Network [OSTI]

    Binkley, David W.

    Testability Transformation -- Program Transformation to Improve Testability Mark Harman1 , Andr, 26 Richmond Street, Glasgow G1 1XH, UK. Corresponding Author. Abstract. Testability transformation. The goal is to improve the testing process by transforming a program to one that is more amenable

  4. Testability Transformation: Program Transformation to Improve Testability

    E-Print Network [OSTI]

    Singer, Jeremy

    Testability Transformation: Program Transformation to Improve Testability An Overview of Recent Author. Abstract. Testability transformation is a new form of program transfor- mation in which the goal to some chosen test adequacy criterion. The goal is to improve the testing process by transforming

  5. Electrical power conversion is essential for improving

    E-Print Network [OSTI]

    Langendoen, Koen

    % Electricity is the most flexible and efficient source of energy to power mankind. If we improveElectrical power conversion is essential for improving energy efficiency and harvesting renewable energy. Diploma Master of Science Electrical Engineering Track: Electrical Sustainable Energy Credits 120

  6. Improving Statistical Machine Translation with Monolingual Collocation

    E-Print Network [OSTI]

    Wang, Haifeng

    monolingual collocations to improve Statistical Ma- chine Translation (SMT). We make use of the collocation for various kinds of SMT sys- tems and improving phrase table for phrase-based SMT. The experimental re- sults on a phrase-based SMT system and 1.76 BLEU score on a parsing-based SMT system. 1 Introduction Statistical

  7. Improved catalysts for carbon and coal gasification

    DOE Patents [OSTI]

    McKee, D.W.; Spiro, C.L.; Kosky, P.G.

    1984-05-25T23:59:59.000Z

    This invention relates to improved catalysts for carbon and coal gasification and improved processes for catalytic coal gasification for the production of methane. The catalyst is composed of at least two alkali metal salts and a particulate carbonaceous substrate or carrier is used. 10 figures, 2 tables.

  8. Improved Power System of the Future

    E-Print Network [OSTI]

    Mario Rabinowitz

    2003-04-22T23:59:59.000Z

    This paper is intended to provide an insight into physics and engineering that can modernize electric power systems. Topics covered are Flexible ac transmission systems (FACTS), Custom Power, Greatly improved Capacitors, Electrical Insulation, Distribution Cables, Improved Polymeric Insulation, Underground Vault Explosions, Fault Location, Smart Cables, Neutral and Ground, Corrosion and Protection, Conventional Transformers, Compact Transformers, Ferroresonance, and Solid State Transformers.

  9. Improving Targeted Radionuclide Therapy Using Nuclear Nanotechnology 

    E-Print Network [OSTI]

    Evans, Jordan Andrew

    2013-05-03T23:59:59.000Z

    IMPROVING TARGETED RADIONUCLIDE THERAPY USING NUCLEAR NANOTECHNOLOGY A Thesis by JORDAN ANDREW EVANS Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree... of Nanotechnology ................................................. 4 1.3 Paradigm Shift - Improving TRT Using Nuclear Nanotechnology .......... 8 1.4 Cancer Cell Line Investigated in This Study .......................................... 14 1.5 Nano...

  10. ESSENCE Good practice document series to improving

    E-Print Network [OSTI]

    Rambaut, Andrew

    ESSENCE Good practice document series 2012 Five keys to improving research costing in low ESSENCE Good practice document series Five keys to improving research costing in low- and middle- income countries 2012 ESSENCE Good practice document series Contents About ESSENCE and this 2 good practise

  11. Improving Indoor Air Quality Improves the Performance of Office Work and School Work 

    E-Print Network [OSTI]

    Wargocki, P.

    2008-01-01T23:59:59.000Z

    Recent studies show that improving indoor air quality (IAQ) from the mediocre level prevalent in many buildings worldwide improves the performance of office work by adults and the performance of schoolwork by children. These results constitute a...

  12. On QCD Thermodynamics with Improved Actions

    E-Print Network [OSTI]

    Karsch, Frithjof

    1998-01-01T23:59:59.000Z

    We discuss recent advances in the calculation of thermodynamic observables using improved actions. In particular, we discuss the calculation of the equation of state of the SU(3) gauge theory, the critical temperature in units of the string tension, the surface tension and the latent heat at the deconfinement transition. We also present first results from a calculation of the equation of state for four-flavour QCD using an O(a^2) improved staggered fermion action and discuss possible further improvements of the staggered fermion action.

  13. Texas A&M University A detailed account of how one university

    E-Print Network [OSTI]

    20 percent · Decrease greenhouse gas emissions associated with energy consumption by 30 percentTexas A&M University A detailed account of how one university is improving its energy efficiency and campus environment through effective management and performance contracting usa.siemens.com/tamu #12;One

  14. Enabling process improvements through systems thinking

    E-Print Network [OSTI]

    Dolak, Jessica

    2006-01-01T23:59:59.000Z

    Manufacturing organizations around the world strive to improve processes with varying degrees of realization. There is no right way or latest and greatest process that can guarantee success, therefore the approach, and not ...

  15. Predicting Improved Chiller Performance Through Thermodynamic Modeling

    E-Print Network [OSTI]

    Figueroa, I. E.; Cathey, M.; Medina, M. A.; Nutter, D. W.

    This paper presents two case studies in which thermodynamic modeling was used to predict improved chiller performance. The model predicted the performance (COP and total energy consumption) of water-cooled centrifugal chillers as a function...

  16. Managing Warm-season Improved Pastures

    E-Print Network [OSTI]

    Stichler, Charles; Prostko, Eric P.; Livingston, Stephen

    1998-10-09T23:59:59.000Z

    M anaging Warm-season Improved Pastures Charles Stichler, Eric Prostko, Steve Livingston* he quality and quantity of forage in pastures can vary greatly and are constantly changing throughout the year. The goal of forage management is to provide...

  17. Improving the world through engineering OPPORTUNITY?

    E-Print Network [OSTI]

    Columbia University

    themes of Energy, Environment, Education and Transport and its vision of `Improving the world through-melted. However, for many other types of waste, recovering its value to provide electricity, heat and/or transport

  18. Basophile: Accurate Fragment Charge State Prediction Improves...

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

    Accurate Fragment Charge State Prediction Improves Peptide Identification Rates."Genomics, Proteomics & Bioinformatics 11(2):86-95. doi:10.1016j.gpb.2012.11.004 Authors: D...

  19. Improved Solvers for Advanced Engine Combustion Simulation

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

    53560 Improved Solvers for Advanced Engine Combustion Simulation M. J. McNenly (PI), S. M. Aceves, D. L. Flowers, N. J. Killingsworth, G. M. Oxberry, G. Petitpas and R. A....

  20. Compressor & Steam Turbine Efficiency Improvements & Revamping Opportunities

    E-Print Network [OSTI]

    Hata, S.; Horiba, J.; Sicker, M.

    2011-01-01T23:59:59.000Z

    of the plant and introduce the history of efficiency improvements for compressors and steam turbines in the Petrochemical Industry. Since heat balance configurations affect the plant's steam consumption, the authors will explain several cases of heat balance...

  1. Improving Classical Authentication with Quantum Communication

    E-Print Network [OSTI]

    of short secret keys [1]. Brassard's scheme is itself an improvement of the Wegman-Carter protocol [2 of messages we want to authenticate, as opposed to the Wegman-Carter proposal. The security of PRGs is based

  2. Innovative, Safer Alternatives Improve Environmental Sampling...

    Energy Savers [EERE]

    at a teach-in at Davidson Fine Arts in Augusta, Ga. Savannah River Site Workers Share Knowledge with Students in Engineering Teach-Ins Innovative, Safer Alternatives Improve...

  3. Improvements to Existing Jefferson Lab Wire Scanners

    SciTech Connect (OSTI)

    McCaughan, Michael D. [JLAB; Tiefenback, Michael G. [JLAB; Turner, Dennis L. [JLAB

    2013-06-01T23:59:59.000Z

    This poster will detail the augmentation of selected existing CEBAF wire scanners with commercially available hardware, PMTs, and self created software in order to improve the scanners both in function and utility.

  4. Compressor & Steam Turbine Efficiency Improvements & Revamping Opportunities 

    E-Print Network [OSTI]

    Hata, S.; Horiba, J.; Sicker, M.

    2011-01-01T23:59:59.000Z

    of the plant and introduce the history of efficiency improvements for compressors and steam turbines in the Petrochemical Industry. Since heat balance configurations affect the plant's steam consumption, the authors will explain several cases of heat balance...

  5. Prospects for Improved Carbon Capture Technology

    E-Print Network [OSTI]

    Prospects for Improved Carbon Capture Technology Report to the Congressional Research Service Capture Technology i Table of Contents CHAPTER 1. EXECUTIVE SUMMARY ................................................................................................................ 7 CHAPTER 3. OVERVIEW OF CO2 CAPTURE TECHNOLOGIES

  6. Towards improving phenotype representation in OWL

    E-Print Network [OSTI]

    Loebe, Frank; Stumpf, Frank; Hoehndorf, Robert; Herre, Heinrich

    2012-09-21T23:59:59.000Z

    PROCEEDINGS Open Access Towards improving phenotype representation in OWL Frank Loebe1*, Frank Stumpf1, Robert Hoehndorf2, Heinrich Herre3 From Ontologies in Biomedicine and Life Sciences (OBML 2011) Berlin, Germany. 6-7 October 2011...

  7. Extending dependencies for improving data quality 

    E-Print Network [OSTI]

    Ma, Shuai

    2011-06-30T23:59:59.000Z

    This doctoral thesis presents the results of my work on extending dependencies for improving data quality, both in a centralized environment with a single database and in a data exchange and integration environment with ...

  8. Lakes and Rivers Improvement Act (Ontario, Canada)

    Broader source: Energy.gov [DOE]

    The Lakes and Rivers Improvement Act proscribes the management, protection, preservation and use of the waters of the lakes and rivers of Ontario and the land under them. The Act also details...

  9. Improvements to Technical Specifications surveillance requirements

    SciTech Connect (OSTI)

    Lobel, R.; Tjader, T.R.

    1992-12-01T23:59:59.000Z

    In August 1983 an NRC task group was formed to investigate problems with surveillance testing required by Technical Specifications, and to recommend approaches to effect improvements. NUREG-1024 ( Technical Specifications-Enhancing Safety Impact'') resulted, and it contained recommendations to review the basis for test frequencies; to ensure that the tests promote safety and do not degrade equipment; and to review surveillance tests so that they do not unnecessarily burden personnel. The Technical Specifications Improvement Program (TSIP) was established in December 1984 to provide the framework for rewriting and improving the Technical Specifications. As an element of the TSIP, all Technical Specifications surveillance requirements were comprehensively examined as recommended in NUREG-1024. The results of that effort are presented in this report. The study found that while some testing at power is essential to verify equipment and system operability, safety can be improved, equipment degradation decreased, and unnecessary personnel burden relaxed by reducing the amount of testing at power.

  10. Polycarbonate blends having an improved impact strength

    SciTech Connect (OSTI)

    Krishnan, S.; Lazear, N.R.

    1984-05-15T23:59:59.000Z

    Thermoplastic molding compositions characterized by their improved impact performance and deformation under load are disclosed comprising a homogeneous, intimate blend of a polycarbonate resin and a nuclear alkylated polycarbonate resin wherein blend dispersed is a polymeric modifier.

  11. Light Steel Framing: Improving the Integral Design 

    E-Print Network [OSTI]

    Amundarain, Aitor; Torero, Jose L; Usmani, Asif; Al-Remal, Ahmad M

    2006-09-11T23:59:59.000Z

    Light Steel Framing has been extensively used in cold climate countries due to its good thermal and structural behaviour. Improved thermal behaviour results in positive environmental impact essential for sustainable ...

  12. IMPROVING DATABASE DESIGN TEACHING IN SECONDARY EDUCATION

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Review Copy IMPROVING DATABASE DESIGN TEACHING IN SECONDARY EDUCATION: ACTION RESEARCH Education, University of Patras, 26500, Patras, GREECE. Abstract Database design and use has educational interest for utilitarian and learning reasons. Database technology has significant economic impact

  13. Improved Usability of Aviation Automation Through Direct

    E-Print Network [OSTI]

    Kaber, David B.

    Improved Usability of Aviation Automation Through Direct Manipulation and Graphical User Interface Design David B. Kaber and Jennifer M. Riley Department of Industrial Engineering North Carolina State University Kheng-Wooi Tan Department of Industrial Engineering Mississippi State University Problems

  14. RELIABILITY IMPROVEMENT OF BART TRAIN CONTROL

    E-Print Network [OSTI]

    Turner, D.B.

    2011-01-01T23:59:59.000Z

    equipment to resolve equipment reliability problems must bereliability problems was seen to be a mandatory first step in improving equipmentreliability of the Bay Area Rapid Tran- sit district's vehicle-borne Automatic Train Control equipment.

  15. Improving Industrial Refrigeration System Efficiency - Actual Applications

    E-Print Network [OSTI]

    White, T. L.

    1980-01-01T23:59:59.000Z

    cycle cooling during winter operation, compressor intercooling, direct refrigeration vs. brine cooling, insulation of cold piping to reduce heat gain, multiple screw compressors for improved part load operation, evaporative condensers for reduced system...

  16. Program Characteristics that Predict Improved Learner Outcomes

    E-Print Network [OSTI]

    Patterson, Margaret; Mellard, Daryl

    2007-06-01T23:59:59.000Z

    This study identifies adult education program characteristics that predict improved learner outcomes through statistical analyses of data across four years in a single state. Data indicate that, collectively, several ...

  17. Process for preparing improved silvered glass mirrors

    DOE Patents [OSTI]

    Buckwalter, C.Q. Jr.

    1980-01-28T23:59:59.000Z

    Glass mirrors having improved weathering properties are prepared by an improvement in the process for making the mirrors. The glass surface after it has been cleaned but before it is silvered, is contacted with a solution of lanthanide rare earths in addition to a sensitization solution of tin or palladium. The addition of the rare earths produces a mirror which has increased resistance to delamination of the silver from the glass surface in the presence of water.

  18. Solar Cell Modules With Improved Backskin

    DOE Patents [OSTI]

    Gonsiorawski, Ronald C. (Danvers, MA)

    2003-12-09T23:59:59.000Z

    A laminated solar cell module comprises a front light transmitting support, a plurality of interconnected solar cells encapsulated by a light-transmitting encapsulant material, and an improved backskin formed of an ionomer/nylon alloy. The improved backskin has a toughness and melting point temperature sufficiently great to avoid any likelihood of it being pierced by any of the components that interconnect the solar cells.

  19. Continuous Improvement Energy Projects Reduce Energy Consumption

    E-Print Network [OSTI]

    Niemeyer, E.

    2014-01-01T23:59:59.000Z

    Continuous Improvement Energy Projects Reduce Energy Consumption Eric Niemeyer, Operations Superintendent Drilling Specialties Company A division of Chevron Phillips Chemical Company LP ESL-IE-14-05-31 Proceedings of the Thrity..., LA. May 20-23, 2014 A presentation of the paper “Continuous Improvement Energy Projects Reduce Energy Consumption” by Bruce Murray and Allison Myers ESL-IE-14-05-31 Proceedings of the Thrity-Sixth Industrial Energy Technology Conference New Orleans...

  20. New Stream-Reach Hydropower Development

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

    evaluation of opportunities for new hydropower development must include considerations of ecological and social sustainability. Although the NSD assessment did not make...

  1. Limitations of extended reach drilling in deepwater 

    E-Print Network [OSTI]

    Akinfenwa, Akinwunmi Adebayo

    2000-01-01T23:59:59.000Z

    bore stability was 150 m /g shale strength, which is a pretty stable shale. The minimum mud weight was determined by thc pore pressure or collapse pressure with a trip margin of 0. 2 ppg. This is a function of the fracture pressure with a fracture...

  2. Reaching towards higher masses of supersymmetric particles

    E-Print Network [OSTI]

    Olsen, Agnethe Seim

    This thesis presents an optimisation of the search for SUSY in final states with one tau lepton, jets and large missing transverse energy. The search is performed in proton-proton collisions at sqrt(s) = 8TeV corresponding to an integrated luminosity of 20.3 fb^(?1). The SUSY model considered is mSUGRA with parameter values: m0 and m1/2 are treated as grid parameters, A0 = ?2m0, tan beta = 30 and mu>0. The event selection is optimised for maximal sensitivity to mSUGRA in the low m0, high m1/2 region of the mass plane. The result of the optimised analysis is interpreted in the mSUGRA model and a limit in the (m0, m1/2) plane is obtained. Values of m1/2 up to 640 GeV are excluded for low m0 and 300 GeV for high m0 ( 2000 GeV < m0 < 5400 GeV).

  3. EcoCAR Reaches the Finish Line

    Office of Energy Efficiency and Renewable Energy (EERE)

    Virginia Tech takes the checkered flag as the inaugural EcoCar competition comes to a close in Washington, D.C.

  4. Increasing TLB reach using TCAM cells

    E-Print Network [OSTI]

    Kumar, Anuj

    2005-02-17T23:59:59.000Z

    with aggregation technique to enhance the benefits due to spatial locality. The performance of the proposed TLB architecture is evaluated using SPEC2000 benchmarks concentrating on those that show high data TLB miss ratios. Simulation results indicate a reduction...

  5. Well control procedures for extended reach wells

    E-Print Network [OSTI]

    Gjorv, Bjorn

    2004-09-30T23:59:59.000Z

    The limits of directional drilling continue to be pushed back as horizontal or near-horizontal reservoir sections are being drilled, cased, cemented and completed to tap reserves at extreme distances. Continuous development of new technology...

  6. Investing in Agriculture: Far-Reaching Challenge,

    E-Print Network [OSTI]

    Wisconsin at Madison, University of

    Perspective June 2009 Carbon Counter widget available for download at: www.Know-The-Number.com Whitepaper of speculators and commodity funds. Once the bubble burst, the debate over producing fuel over food subsided points out both the constraints of water and carbon emissions that these agri-business solutions bring

  7. Reaching agreements on indoor air quality

    SciTech Connect (OSTI)

    Stewart, S.M.

    1992-08-01T23:59:59.000Z

    The phrases sick building syndrome and indoor air quality (IAQ) are in common use today because of a heightened public awareness of various environmental issues. IAQ complaints must be diplomatically resolved because employers and building owners and managers now face a potential impact on their bottom-lines. The office's IAQ was first questioned when 12 of the 47 employees reported complaints particular to the time they spent in the office building. Three employees were so severely affected, they developed respective cases of rhinitis, conjunctivitis and sinus infection. When the tenant presented this information to the building owner, he was told that there was not an IAQ problem within the building. This article summarizes an unfortunate, yet typical, aspect of IAQ problems. It also offers a more efficient method for evaluating and resolving all IAQ problems.

  8. Hoover Police Fleet Reaches Alternative Fuel Milestone

    Broader source: Energy.gov [DOE]

    When Tony Petelos became the mayor of Hoover in 2004, the police fleet was run down. Within the next year, Petelos, with support from the community, called for a big change: switch out the old police fleet with new, flexible-fueled vehicles.

  9. PROGRAM REACHES DIVERSE NORTH CAROLINA COMMUNITY | Department...

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

    of energy upgrade jobs by providing training opportunities to contractors and creating demand for energy upgrades. Defining Characteristics Approaches Taken Key Takeaways What's...

  10. Government Buildings CHARTING YOUR JOURNEY REACHING MILESTONES

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy ChinaofSchaefer To: CongestionDevelopment of a downholeReactorsgoalGoodmanofEnergy Use

  11. New Stream-Reach Hydropower Development

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking ofOilNEW HAMPSHIREof EnergyBulbs |Reactors | DepartmentEfficiency

  12. Quenched hadron spectroscopy with improved staggered quark action

    E-Print Network [OSTI]

    MILC Collaboration; Claude Bernard; Tom Blum; Thomas A. DeGrand; Carleton DeTar; Steven Gottlieb; Urs M. Heller; James Hetrick; Craig McNeile; K. Rummukainen; Bob Sugar; Doug Toussaint

    1997-12-11T23:59:59.000Z

    We investigate light hadron spectroscopy with an improved quenched staggered quark action. We compare the results obtained with an improved gauge plus an improved quark action, an improved gauge plus standard quark action, and the standard gauge plus standard quark action. Most of the improvement in the spectroscopy results is due to the improved gauge sector. However, the improved quark action substantially reduces violations of Lorentz invariance, as evidenced by the meson dispersion relations.

  13. Improved Performance of an Air Cooled Condenser (ACC) Using SPX Wind Guide Technology at Coal-Based Thermoelectric Power Plants

    SciTech Connect (OSTI)

    Ken Mortensen

    2010-12-31T23:59:59.000Z

    This project added a new airflow enhancement technology to an existing ACC cooling process at a selected coal power plant. Airflow parameters and efficiency improvement for the main plant cooling process using the applied technology were determined and compared with the capabilities of existing systems. The project required significant planning and pre-test execution in order to reach the required Air Cooled Condenser system configuration for evaluation. A host Power Plant ACC system had to be identified, agreement finalized, and addition of the SPX ACC Wind Guide Technology completed on that site. Design of the modification, along with procurement, fabrication, instrumentation, and installation of the new airflow enhancement technology were executed. Baseline and post-modification cooling system data was collected and evaluated. The improvement of ACC thermal performance after SPX wind guide installation was clear. Testing of the improvement indicates there is a 5% improvement in heat transfer coefficient in high wind conditions and 1% improvement at low wind speed. The benefit increased with increasing wind speed. This project was completed on schedule and within budget.

  14. Idaho Chemical Processing Plant Process Efficiency improvements

    SciTech Connect (OSTI)

    Griebenow, B.

    1996-03-01T23:59:59.000Z

    In response to decreasing funding levels available to support activities at the Idaho Chemical Processing Plant (ICPP) and a desire to be cost competitive, the Department of Energy Idaho Operations Office (DOE-ID) and Lockheed Idaho Technologies Company have increased their emphasis on cost-saving measures. The ICPP Effectiveness Improvement Initiative involves many activities to improve cost effectiveness and competitiveness. This report documents the methodology and results of one of those cost cutting measures, the Process Efficiency Improvement Activity. The Process Efficiency Improvement Activity performed a systematic review of major work processes at the ICPP to increase productivity and to identify nonvalue-added requirements. A two-phase approach was selected for the activity to allow for near-term implementation of relatively easy process modifications in the first phase while obtaining long-term continuous improvement in the second phase and beyond. Phase I of the initiative included a concentrated review of processes that had a high potential for cost savings with the intent of realizing savings in Fiscal Year 1996 (FY-96.) Phase II consists of implementing long-term strategies too complex for Phase I implementation and evaluation of processes not targeted for Phase I review. The Phase II effort is targeted for realizing cost savings in FY-97 and beyond.

  15. Improved Algorithms Speed It Up for Codes

    SciTech Connect (OSTI)

    Hazi, A

    2005-09-20T23:59:59.000Z

    Huge computers, huge codes, complex problems to solve. The longer it takes to run a code, the more it costs. One way to speed things up and save time and money is through hardware improvements--faster processors, different system designs, bigger computers. But another side of supercomputing can reap savings in time and speed: software improvements to make codes--particularly the mathematical algorithms that form them--run faster and more efficiently. Speed up math? Is that really possible? According to Livermore physicist Eugene Brooks, the answer is a resounding yes. ''Sure, you get great speed-ups by improving hardware,'' says Brooks, the deputy leader for Computational Physics in N Division, which is part of Livermore's Physics and Advanced Technologies (PAT) Directorate. ''But the real bonus comes on the software side, where improvements in software can lead to orders of magnitude improvement in run times.'' Brooks knows whereof he speaks. Working with Laboratory physicist Abraham Szoeke and others, he has been instrumental in devising ways to shrink the running time of what has, historically, been a tough computational nut to crack: radiation transport codes based on the statistical or Monte Carlo method of calculation. And Brooks is not the only one. Others around the Laboratory, including physicists Andrew Williamson, Randolph Hood, and Jeff Grossman, have come up with innovative ways to speed up Monte Carlo calculations using pure mathematics.

  16. Improved high temperature creep resistant austenitic alloy

    DOE Patents [OSTI]

    Maziasz, P.J.; Swindeman, R.W.; Goodwin, G.M.

    1988-05-13T23:59:59.000Z

    An improved austenitic alloy having in wt% 19-21 Cr, 30-35 Ni, 1.5-2.5 Mn, 2-3 Mo, 0.1-0.4 Si, 0.3-0.5 Ti, 0.1-0.3 Nb, 0.1-0.5 V, 0.001-0.005 P, 0.08-0.12 C, 0.01-0.03 N, 0.005-0.01 B and the balance iron that is further improved by annealing for up to 1 hour at 1150-1200/degree/C and then cold deforming 5-15%. The alloy exhibits dramatically improved creep rupture resistance and ductility at 700/degree/C. 2 figs.

  17. Method of chaotic mixing and improved stirred tank reactors

    DOE Patents [OSTI]

    Muzzio, Fernando J. (Monroe, NJ); Lamberto, David J. (Edison, NJ)

    1999-01-01T23:59:59.000Z

    The invention provides a method and apparatus for efficiently achieving a homogeneous mixture of fluid components by introducing said components having a Reynolds number of between about .ltoreq.1 to about 500 into a vessel and continuously perturbing the mixing flow by altering the flow speed and mixing time until homogeniety is reached. This method prevents the components from aggregating into non-homogeneous segregated regions within said vessel during mixing and substantially reduces the time the admixed components reach homogeneity.

  18. Method of chaotic mixing and improved stirred tank reactors

    DOE Patents [OSTI]

    Muzzio, F.J.; Lamberto, D.J.

    1999-07-13T23:59:59.000Z

    The invention provides a method and apparatus for efficiently achieving a homogeneous mixture of fluid components by introducing said components having a Reynolds number of between about [le]1 to about 500 into a vessel and continuously perturbing the mixing flow by altering the flow speed and mixing time until homogeneity is reached. This method prevents the components from aggregating into non-homogeneous segregated regions within said vessel during mixing and substantially reduces the time the admixed components reach homogeneity. 19 figs.

  19. Fiber-type dosimeter with improved illuminator

    DOE Patents [OSTI]

    Fox, R.J.

    1985-12-23T23:59:59.000Z

    A single-piece, molded plastic, Cassigrainian-type condenser arrangement is incorporated in a tubular-shaped personal pocket dosimeter of the type which combines an ionization chamber with an optically-read fiber electrometer to provide improved illumination of the electrometer fiber. The condenser routes incoming light from one end of the dosimeter tubular housing around a central axis charging pin assembly and focuses the light at low angles to the axis so that it falls within the acceptance angle of the electrometer fiber objective lens viewed through an eyepiece lens disposed in the opposite end of the dosimeter. This results in improved fiber illumination and fiber image contrast.

  20. Improving Motor and Drive System Performance

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(Fact Sheet),EnergyImprovement of the Lost FoamCooling and ImprovingMotor and

  1. High Performance Healthcare Buildings: A Roadmap to Improved Energy Efficiency

    E-Print Network [OSTI]

    Singer, Brett C.

    2010-01-01T23:59:59.000Z

    Roadmap to Improved Energy Efficiency iii 11-Sept-2009 ListA Roadmap to Improved Energy Efficiency 11-Sept-2009 Topic /A Roadmap to Improved Energy Efficiency 11-Sept-2009 Topic /

  2. Process Modeling for Process Improvement A Process Conformance Approach

    E-Print Network [OSTI]

    Process Modeling for Process Improvement - A Process Conformance Approach Sigurd Thunem September processes. In order to improve these processes, knowledge about them is necessary. To support process improve- ment the organization should collect process data, transform process data into knowledge

  3. Working with Communities to Improve Dignity: The Case of Improved Bio-Centres in Kenya

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Working with Communities to Improve Dignity: The Case of Improved Bio-Centres in Kenya George, to redress the attendant problems. Introduction As is the case in many developing nations, Kenya's urban for in article 184 (Government of Kenya [GOK], 2010) that has enabled subsequent legislation through an Act

  4. Improved e-Jet Printing -TFOT Improved e-Jet Printing

    E-Print Network [OSTI]

    Rogers, John A.

    Improved e-Jet Printing - TFOT Home Sections News Articles Forums About Us Improved e-Jet Printing at the University of Illinois have developed a technology that provides higher resolution and more versatility in e-jet printing. As opposed to conventional ink-jet printers, where heat or mechanical vibrations are used

  5. Guide for prioritizing power plant productivity improvement projects: handbook of availability improvement methodology

    SciTech Connect (OSTI)

    Not Available

    1981-09-15T23:59:59.000Z

    As part of its program to help improve electrical power plant productivity, the Department of Energy (DOE) has developed a methodology for evaluating productivity improvement projects. This handbook presents a simplified version of this methodology called the Availability Improvement Methodology (AIM), which provides a systematic approach for prioritizing plant improvement projects. Also included in this handbook is a description of data taking requirements necessary to support the AIM methodology, benefit/cost analysis, and root cause analysis for tracing persistent power plant problems. In applying the AIM methodology, utility engineers should be mindful that replacement power costs are frequently greater for forced outages than for planned outages. Equivalent availability includes both. A cost-effective ranking of alternative plant improvement projects must discern between those projects which will reduce forced outages and those which might reduce planned outages. As is the case with any analytical procedure, engineering judgement must be exercised with respect to results of purely mathematical calculations.

  6. LCDETxxxxxxx Improved TESLA Optics and Beam Induced

    E-Print Network [OSTI]

    LC­DET­xxxx­xxx Improved TESLA Optics and Beam Induced Backgrounds Update Karsten BË?uÃ?er, DESY and Olivier Napoly, CEA/Saclay LCWS 2002, Jeju, Korea Abstract A new tesla optics with l*=5m is under development. An update is given on the simulation of the beam induced backgrounds in the TESLA detector. 1

  7. Improved Theory of Neutrino Oscillations in Matter

    E-Print Network [OSTI]

    Leonard S. Kisslinger

    2014-11-19T23:59:59.000Z

    This is revision of the S-Matrix theory of neutrino oscillations used for many years. We evaluate the transition probability of a $\\mu$ to $e$ neutrino without an approximation used for many theoretical studies, and find important differences which could improve the extraction of neutrino parameters from experimental data in the future.

  8. Improved Theory of Neutrino Oscillations in Matter

    E-Print Network [OSTI]

    Kisslinger, Leonard S

    2014-01-01T23:59:59.000Z

    This is revision of the S-Matrix theory of neutrino oscillations used for many years. We evaluate the transition probability of a $\\mu$ to $e$ neutrino without an approximation used for many theoretical studies, and find important differences which could improve the extraction of neutrino parameters from experimental data in the future.

  9. Original article A reparameterization to improve

    E-Print Network [OSTI]

    Boyer, Edmond

    Original article A reparameterization to improve numerical optimization in multivariate REML (co numerical optimization on the basis of Downhill-Simplex (DS) or quasi- Newton (QN) procedures suffers from / optimization / quasi-Newton / Downhill-Simplex / reparame- terization Résumé - Un reparamétrage pour améliorer

  10. Introduction Improved Model Alternative Statistical Model

    E-Print Network [OSTI]

    Regression Linear "Linear" is for the parameter(s) e.g. yi = 0 +1xi +i Non-linear "Non-linear Square Regression Linear "Linear" is for the parameter(s) e.g. yi = 0 +1xi +i #12;Introduction Improved Model Recall of Ordinary Least-Square Regression Least Square Regression Linear "Linear

  11. the Meridianthe Meridian HomelandImprovement, Inc.

    E-Print Network [OSTI]

    Netoff, Theoden

    environment of UMore Park. Living in the Meridian will not only promote active, healthy and sustainable maximizes open space while retaining the privacy of one's own home Living sustainably also means living costthe Meridianthe Meridian HomelandImprovement, Inc. EVOLUTIONARY LIVING requires rethinking one

  12. Superconducting wire with improved strain characteristics

    DOE Patents [OSTI]

    Luhman, Thomas (Westhampton Beach, NY); Klamut, Carl J. (E. Patchogue, NY); Suenaga, Masaki (Bellport, NY); Welch, David (Stony Brook, NY)

    1982-01-01T23:59:59.000Z

    A superconducting wire comprising a superconducting filament and a beryllium strengthened bronze matrix in which the addition of beryllium to the matrix permits a low volume matrix to exhibit reduced elastic deformation after heat treating which increases the compression of the superconducting filament on cooling and thereby improves the strain characteristics of the wire.

  13. Superconducting wire with improved strain characteristics

    DOE Patents [OSTI]

    Luhman, Thomas (Westhampton Beach, NY); Klamut, Carl J. (East Patchogue, NY); Suenaga, Masaki (Bellport, NY); Welch, David (Stony Brook, NY)

    1982-01-01T23:59:59.000Z

    A superconducting wire comprising a superconducting filament and a beryllium strengthened bronze matrix in which the addition of beryllium to the matrix permits a low volume matrix to exhibit reduced elastic deformation after heat treating which increases the compression of the superconducting filament on cooling and thereby improve the strain characteristics of the wire.

  14. IMPROVING SANDSTONE MATRIX STIMULATION OF OIL

    E-Print Network [OSTI]

    Abu-Khamsin, Sidqi

    products and the oil that otherwise would be contacted. This paper pre- sents the resultsIMPROVING SANDSTONE MATRIX STIMULATION OF OIL WELLS BY GAS PRECONDITIONING M. A. Aggour, M. Al, Dhahran, Saudi Arabia ABSTRACT Experience has shown that for sandstone formations, oil wells respond

  15. Increased Mercury Bioaccumulation Follows Water Quality Improvement

    SciTech Connect (OSTI)

    Bogle, M.A.; Peterson, M.J.; Smith, J.G.; Southworth, G.R.

    1999-09-15T23:59:59.000Z

    Changes in physical and chemical characteristics of aquatic habitats made to reduce or eliminate ecological risks can sometimes have unforeseen consequences. Environmental management activities on the U.S. Dept. of Energy reservation in Oak Ridge, Tennessee,have succeeded in improving water quality in streams impacted by discharges fi-om industrial facilities and waste disposal sites. The diversity and abundance of pollution-sensitive components of the benthic macroinvertebrate communities of three streams improved after new waste treatment systems or remedial actions reduced inputs of various toxic chemicals. Two of the streams were known to be mercury-contaminated from historical spills and waste disposal practices. Waterborne mercury concentrations in the third were typical of uncontaminated systems. In each case, concentrations of mercury in fish, or the apparent biological availability of mercury increased over the period during which ecological metrics indicated improved water quality. In the system where waterborne mercury concentrations were at background levels, increased mercury bioaccumulation was probably a result of reduced aqueous selenium concentrations; however, the mechanisms for increased mercury accumulation in the other two streams remain under investigation. In each of the three systems, reduced inputs of metals and inorganic anions was followed by improvements in the health of aquatic invertebrate communities. However, this reduction in risk to aquatic invertebrates was accompanied by increased risk to humans and piscivorous wildlife related to increased mercury concentrations in fish.

  16. Improvements to Hydrogen Delivery Scenario Analysis

    E-Print Network [OSTI]

    Improvements to Hydrogen Delivery Scenario Analysis Model (HDSAM) and Results May 8, 2007 Amgad and storage are at or adjacent to Liquid Hydrogen (LH) TruckH2 Production 100 or 1500 kg/d Compressed H2 (CH) Truck H2 Production 3 or 7 kpsi 100 or 1500 kg/d H2 Production Gaseous H2 Pipeline 100 or 1500 kg

  17. Improvements of the local bosonic algorithm

    E-Print Network [OSTI]

    B. Jegerlehner

    1996-12-15T23:59:59.000Z

    We report on several improvements of the local bosonic algorithm proposed by M. Luescher. We find that preconditioning and over-relaxation works very well. A detailed comparison between the bosonic and the Kramers-algorithms shows comparable performance for the physical situation examined.

  18. Evaluating Energy Efficiency Improvements in Manufacturing Processes

    E-Print Network [OSTI]

    Boyer, Edmond

    Evaluating Energy Efficiency Improvements in Manufacturing Processes Katharina Bunse1 , Julia Sachs kbunse@ethz.ch, sachsj@student.ethz.ch, mvodicka@ethz.ch Abstract. Global warming, rising energy prices and increasing awareness of "green" customers have brought energy efficient manufacturing on top of the agenda

  19. Center for Diesel Research Potential Efficiency Improvement

    E-Print Network [OSTI]

    Minnesota, University of

    Center for Diesel Research Potential Efficiency Improvement by Accessory Load Reduction on Hybrid University of Minnesota Center for Diesel Research #12;Center for Diesel Research Acknowledgements · Jeff;Center for Diesel Research Transit Energy Use and Cost · 633 M gallons diesel used for US transit in 2010

  20. AbstractAbstract Improving efficiency of thermoelectric

    E-Print Network [OSTI]

    Walker, D. Greg

    AbstractAbstract · Improving efficiency of thermoelectric energy conversion devices is a major-classical transport models used to predict ZT can effectively predict thermoelectric performance of bulk materials method proposed to couple quantum and scattering effects to predict thermoelectric performance. · NEGF

  1. Improved Modular Termination Proofs Using Dependency Pairs

    E-Print Network [OSTI]

    Kobbelt, Leif

    Improved Modular Termination Proofs Using Dependency Pairs Renâ??e Thiemann, JË?urgen Giesl, Peter) termination proofs of term rewrite systems (TRSs). For any TRS, it generates inequality constraints that have to be satisfied by well­founded orders. However, proving innermost termination is considerably easier than

  2. Improved Modular Termination Proofs Using Dependency Pairs #

    E-Print Network [OSTI]

    Ábrahám, Erika

    Improved Modular Termination Proofs Using Dependency Pairs # Renâ??e Thiemann, JË?urgen Giesl, Peter) termination proofs of term rewrite systems (TRSs). For any TRS, it generates inequality constraints that have to be satisfied by well­founded orders. However, proving innermost termination is considerably easier than

  3. Improved Modular Termination Proofs Using Dependency Pairs

    E-Print Network [OSTI]

    Middeldorp, Aart

    Improved Modular Termination Proofs Using Dependency Pairs Ren´e Thiemann, J¨urgen Giesl, Peter) termination proofs of term rewrite systems (TRSs). For any TRS, it generates inequality constraints that have to be satisfied by well-founded orders. However, proving innermost termination is considerably easier than

  4. Ris-M-2873 Improvement ofthe Bandwidth

    E-Print Network [OSTI]

    for checking the rise time of the test pulse. The pulse in "fed to the digitizer, and the step response be modified to improve the response time from approx. 480 to 410 ps. ISBN 87-550-1648-0 ISSN 0418-6435 Grafisk duration, and rn the response time of the detection system. The duration of the laser pulse is 300 ps

  5. Improved Microseismicity Detection During Newberry EGS Stimulations

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

    Templeton, Dennise

    Effective enhanced geothermal systems (EGS) require optimal fracture networks for efficient heat transfer between hot rock and fluid. Microseismic mapping is a key tool used to infer the subsurface fracture geometry. Traditional earthquake detection and location techniques are often employed to identify microearthquakes in geothermal regions. However, most commonly used algorithms may miss events if the seismic signal of an earthquake is small relative to the background noise level or if a microearthquake occurs within the coda of a larger event. Consequently, we have developed a set of algorithms that provide improved microearthquake detection. Our objective is to investigate the microseismicity at the DOE Newberry EGS site to better image the active regions of the underground fracture network during and immediately after the EGS stimulation. Detection of more microearthquakes during EGS stimulations will allow for better seismic delineation of the active regions of the underground fracture system. This improved knowledge of the reservoir network will improve our understanding of subsurface conditions, and allow improvement of the stimulation strategy that will optimize heat extraction and maximize economic return.

  6. Organic electroluminescent devices having improved light extraction

    DOE Patents [OSTI]

    Shiang, Joseph John (Niskayuna, NY)

    2007-07-17T23:59:59.000Z

    Organic electroluminescent devices having improved light extraction include a light-scattering medium disposed adjacent thereto. The light-scattering medium has a light scattering anisotropy parameter g in the range from greater than zero to about 0.99, and a scatterance parameter S less than about 0.22 or greater than about 3.

  7. Continuous improvement in nitrogen rejection unit design

    SciTech Connect (OSTI)

    O`Brien, J.V. [Process Systems International, Inc., Westborough, MA (United States); Maloney, J.J. [Praxair, Inc., Tonawanda, NY (United States)

    1997-12-31T23:59:59.000Z

    The design and fabrication of Nitrogen Rejection Units (NRU) has advanced considerably over the past 15 years. Improvements have been made in all aspects of producing an NRU plant and cold box. This paper presents the primary areas involved that have seen these improvements. (1) Process design: the two-column process has been superseded by an approach which utilizes multiple flash drums and one column. This leads to a smaller and lower cost cold box. With low nitrogen content feeds, the prefractionater recovers half the methane as a high pressure residue gas and reduces the cold box size. (2) Mechanical Design: improved software enables the design process to be more accurate, eliminate piping and equipment interferences, reduce the size of the box and save design time. (3) Manufacturing: the interfacing of the 3D software design tools and the manufacturing process enables the shop floor personnel to reduce the manufacturing time by 10%. All of these individual improvements have reduced the real cost of an NRU substantially over the past 15 years.

  8. Observations and simulations improve space weather models

    E-Print Network [OSTI]

    - 1 - Observations and simulations improve space weather models June 25, 2014 Los Alamos with fast-moving particles and a space weather system that varies in response to incoming energy computer simulations of the space weather that can affect vital technology, communication and navigation

  9. Plant improvement Contribution of some agronomic traits

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Plant improvement Contribution of some agronomic traits to durum wheat performance in a dry, the contribution of these traits to genotype discrimination proved rather lim- ited when combined with grain yield; Contribution de quelques caractères agronomiques au rendement du blé dur dans une région mé- diterranéenne

  10. Irrigation Retrofit Program Improving sprinkler system efficiency

    E-Print Network [OSTI]

    Jawitz, James W.

    Irrigation Retrofit Program Improving sprinkler system efficiency Approximately 70% of the homes of irrigation system retrofits that qualify for rebates Contact the Extension Service. MiamiDade County in MiamiDade County have h i l i i i i d i d i l ( h l f )mechanical irrigation timers and indexing valves

  11. Using Undergraduates to Improve the Library

    E-Print Network [OSTI]

    ceiling material " "More green spaces in the library" "Longer weekend hours during exam weeks" "BetterUsing Undergraduates to Improve the Library Monena Hall Rashad Assir Virginia Tech Libraries #12://www.mba.vt.edu/admissions/interact/on-campus/ http://www.vtnews.vt.edu/photo-galleries/2011/071411-gowallatour/tour-gallery.html #12;Newman Library

  12. 3 December 2007 1 MERIT Improvement List

    E-Print Network [OSTI]

    McDonald, Kirk

    syringe position sensor in case the two inside the secondary have some unobserved radiation damage of solenoid. Optical Diagnostic System Improvements/Changes · Clean up all messy cables and fibers on and near radiation shield, mostly neutron shield, on the electronic rack at TT2. Protect PCs from neutron radiation

  13. Improved Microseismicity Detection During Newberry EGS Stimulations

    SciTech Connect (OSTI)

    Templeton, Dennise

    2013-11-01T23:59:59.000Z

    Effective enhanced geothermal systems (EGS) require optimal fracture networks for efficient heat transfer between hot rock and fluid. Microseismic mapping is a key tool used to infer the subsurface fracture geometry. Traditional earthquake detection and location techniques are often employed to identify microearthquakes in geothermal regions. However, most commonly used algorithms may miss events if the seismic signal of an earthquake is small relative to the background noise level or if a microearthquake occurs within the coda of a larger event. Consequently, we have developed a set of algorithms that provide improved microearthquake detection. Our objective is to investigate the microseismicity at the DOE Newberry EGS site to better image the active regions of the underground fracture network during and immediately after the EGS stimulation. Detection of more microearthquakes during EGS stimulations will allow for better seismic delineation of the active regions of the underground fracture system. This improved knowledge of the reservoir network will improve our understanding of subsurface conditions, and allow improvement of the stimulation strategy that will optimize heat extraction and maximize economic return.

  14. Improved Microseismicity Detection During Newberry EGS Stimulations

    SciTech Connect (OSTI)

    Templeton, Dennise

    2013-10-01T23:59:59.000Z

    Effective enhanced geothermal systems (EGS) require optimal fracture networks for efficient heat transfer between hot rock and fluid. Microseismic mapping is a key tool used to infer the subsurface fracture geometry. Traditional earthquake detection and location techniques are often employed to identify microearthquakes in geothermal regions. However, most commonly used algorithms may miss events if the seismic signal of an earthquake is small relative to the background noise level or if a microearthquake occurs within the coda of a larger event. Consequently, we have developed a set of algorithms that provide improved microearthquake detection. Our objective is to investigate the microseismicity at the DOE Newberry EGS site to better image the active regions of the underground fracture network during and immediately after the EGS stimulation. Detection of more microearthquakes during EGS stimulations will allow for better seismic delineation of the active regions of the underground fracture system. This improved knowledge of the reservoir network will improve our understanding of subsurface conditions, and allow improvement of the stimulation strategy that will optimize heat extraction and maximize economic return.

  15. Adaptive Control to Improve Low Temperature Diesel Engine Combustion...

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

    Control to Improve Low Temperature Diesel Engine Combustion Adaptive Control to Improve Low Temperature Diesel Engine Combustion Presentation given at DEER 2006, August 20-24,...

  16. Electrospray characteristic curves: in pursuit of improved performance...

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

    Electrospray characteristic curves: in pursuit of improved performance in the nano-flow regime. Electrospray characteristic curves: in pursuit of improved performance in the...

  17. Improving Performance of Federal Permitting and Review of Infrastructu...

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

    Modernizing the nation's electric transmission grid requires improvements in how transmission lines are sited, permitted, and reviewed. As part of its efforts to improve the...

  18. Technologies and Policies to Improve Energy Efficiency in Industry

    E-Print Network [OSTI]

    Price, Lynn

    2008-01-01T23:59:59.000Z

    of Policy Instruments for Energy-Efficiency Improvements inand Graus, W. , 2007. Energy Efficiency Improvement and Costimplementation of energy-efficiency and greenhouse gas

  19. Using CrAIN Multilayer Coatings to Improve Oxidation Resistance...

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

    Coatings to Improve Oxidation Resistance of Steel Interconnects for Solid Oxide Fuel Cell Stacks. Using CrAIN Multilayer Coatings to Improve Oxidation Resistance of Steel...

  20. Ventilation System to Improve Savannah River Site's Liquid Waste...

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

    Ventilation System to Improve Savannah River Site's Liquid Waste Operations Ventilation System to Improve Savannah River Site's Liquid Waste Operations August 28, 2014 - 12:00pm...

  1. Special Improvement Districts for Redevelopment of Blighted Areas (Indiana)

    Broader source: Energy.gov [DOE]

    Local redevelopment commissions may designate special improvement districts to aid local public improvements and provide special benefits to district property owners.

  2. The Wind Forecast Improvement Project (WFIP): A Public/Private...

    Office of Environmental Management (EM)

    The Wind Forecast Improvement Project (WFIP): A PublicPrivate Partnership for Improving Short Term Wind Energy Forecasts and Quantifying the Benefits of Utility Operations The...

  3. Catalyst for Improving the Combustion Efficiency of Petroleum...

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

    for Improving the Combustion Efficiency of Petroleum Fuels in Diesel Engines Catalyst for Improving the Combustion Efficiency of Petroleum Fuels in Diesel Engines 2005 Diesel...

  4. Multi-component Nanoparticle Based Lubricant Additive to Improve...

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

    Nanoparticle Based Lubricant Additive to Improve Efficiency and Durability in Engines Multi-component Nanoparticle Based Lubricant Additive to Improve Efficiency and...

  5. Mitigating Voltage Fade in Cathode Materials by Improving the...

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

    Fade in Cathode Materials by Improving the Atomic Level Uniformity of Elemental Distribution. Mitigating Voltage Fade in Cathode Materials by Improving the Atomic Level...

  6. Autonomie Modeling Tool Improves Vehicle Design and Testing,...

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

    Autonomie Modeling Tool Improves Vehicle Design and Testing, Informs New Fuel Economy Standards Autonomie Modeling Tool Improves Vehicle Design and Testing, Informs New Fuel...

  7. Johnson Controls Develops an Improved Vehicle Battery, Works...

    Energy Savers [EERE]

    Johnson Controls Develops an Improved Vehicle Battery, Works to Cut Battery Costs in Half Johnson Controls Develops an Improved Vehicle Battery, Works to Cut Battery Costs in Half...

  8. Los Alamos improves biomass-to-fuel process

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

    Biomass-to-fuel Process Improved Los Alamos improves biomass-to-fuel process Los Alamos scientists and collaborators published an article in the scientific journal Nature Chemistry...

  9. Possible Origin of Improved High Temperature Performance of Hydrotherm...

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

    Origin of Improved High Temperature Performance of Hydrothermally Aged CuBeta Zeolite Catalysts. Possible Origin of Improved High Temperature Performance of Hydrothermally Aged...

  10. An Approach to Sustainability that Improves Environmental and...

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

    An Approach to Sustainability that Improves Environmental and Safety Performance An Approach to Sustainability that Improves Environmental and Safety Performance August 2009...

  11. Opportunities for Energy Efficiency Improvements in the U.S....

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

    Energy Efficiency Improvements in the U.S. Electricity Transmission and Distribution System Opportunities for Energy Efficiency Improvements in the U.S. Electricity Transmission...

  12. Silicon sponge improves lithium-ion battery performance | EMSL

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

    sponge improves lithium-ion battery performance Silicon sponge improves lithium-ion battery performance Increasing battery's storage capacity could allow devices to run...

  13. Security Improvements Project Completed Ahead of Schedule, $20...

    National Nuclear Security Administration (NNSA)

    Field Offices Welcome to the NNSA Production Office NPO News Releases Security Improvements Project Completed Ahead of Schedule, ... Security Improvements Project Completed...

  14. United States and Ukraine Sign Agreement to Improve Security...

    Office of Environmental Management (EM)

    Ukraine Sign Agreement to Improve Security of Ukraine's Radioactive Materials United States and Ukraine Sign Agreement to Improve Security of Ukraine's Radioactive Materials May...

  15. Improving the Reliability and Resiliency of the US Electric Grid...

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

    Improving the Reliability and Resiliency of the US Electric Grid: SGIG Article in Metering International, March 2012 Improving the Reliability and Resiliency of the US Electric...

  16. Constraint of DNA on Functionalized Graphene Improves Its Biostability...

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

    Constraint of DNA on Functionalized Graphene Improves Its Biostability and Specificity. Constraint of DNA on Functionalized Graphene Improves Its Biostability and Specificity....

  17. Apply: Funding Opportunity - Advancing Solutions to Improve Energy...

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

    Apply: Funding Opportunity - Advancing Solutions to Improve Energy Efficiency of Commercial Buildings Apply: Funding Opportunity - Advancing Solutions to Improve Energy Efficiency...

  18. DOE Tribal Intern Aims to Improve Conditions in Indian Country...

    Office of Environmental Management (EM)

    DOE Tribal Intern Aims to Improve Conditions in Indian Country by Addressing Barriers to Renewable Energy Development DOE Tribal Intern Aims to Improve Conditions in Indian Country...

  19. Improvement and Simplification of Diesel Particulate Filter System...

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

    Improvement and Simplification of Diesel Particulate Filter System using a Ceria-Based Fuel-Borne Catalyst in Serial Applications Improvement and Simplification of Diesel...

  20. Future Diesel Engine Thermal Efficiency Improvement andn Emissions...

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

    Diesel Engine Thermal Efficiency Improvement andn Emissions Control Technology Future Diesel Engine Thermal Efficiency Improvement andn Emissions Control Technology 2005 Diesel...

  1. Load Expansion with Diesel/Gasoline RCCI for Improved Engine...

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

    with DieselGasoline RCCI for Improved Engine Efficiency and Emissions Load Expansion with DieselGasoline RCCI for Improved Engine Efficiency and Emissions This poster will...

  2. Opportunities for Efficiency Improvements in the U.S. Natural...

    Office of Environmental Management (EM)

    Efficiency Improvements in the U.S. Natural Gas Transmission, Storage and Distribution System Opportunities for Efficiency Improvements in the U.S. Natural Gas Transmission,...

  3. Using Consulting Skills to Improve Individual and Organizational...

    Office of Environmental Management (EM)

    Using Consulting Skills to Improve Individual and Organizational Performance Using Consulting Skills to Improve Individual and Organizational Performance June 2, 2015 7:00AM MDT to...

  4. ITP Energy Intensive Processes: Improved Heat Recovery in Biomass...

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

    Improved Heat Recovery in Biomass-Fired Boilers ITP Energy Intensive Processes: Improved Heat Recovery in Biomass-Fired Boilers biomass-firedboilers.pdf More Documents &...

  5. NASA's Marshall Space Flight Center Improves Cooling System Performanc...

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

    Improves Cooling System Performance Case study details Marshall Space Flight Center's innovative technologies to improve water efficiency and cooling performance for one of its...

  6. EECBG Success Story: Getting Traffic Lights Talking to Improve...

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

    Traffic Lights Talking to Improve Topeka's Traffic Tunnel EECBG Success Story: Getting Traffic Lights Talking to Improve Topeka's Traffic Tunnel October 8, 2010 - 11:16am Addthis...

  7. Oxygen Diffusion (OD) Dramatically Improves Wear-Resistance of...

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

    Oxygen Diffusion (OD) Dramatically Improves Wear-Resistance of Titanium Oxygen Diffusion (OD) Dramatically Improves Wear-Resistance of Titanium 2007 Diesel Engine-Efficiency &...

  8. Water Efficiency Improvements at Various U.S. Environmental Protection...

    Office of Environmental Management (EM)

    Water Efficiency Improvements at Various U.S. Environmental Protection Agency Sites Water Efficiency Improvements at Various U.S. Environmental Protection Agency Sites Water...

  9. Energy Assessment Helps Kaiser Aluminum Save Energy and Improve...

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

    Helps Kaiser Aluminum Save Energy and Improve Productivity Energy Assessment Helps Kaiser Aluminum Save Energy and Improve Productivity This case study describes how a DOE energy...

  10. Vehicle Technologies Office Merit Review 2014: Improved Solvers...

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

    Improved Solvers for Advanced Engine Combustion Simulation Vehicle Technologies Office Merit Review 2014: Improved Solvers for Advanced Engine Combustion Simulation Presentation...

  11. Bimetallic and Ternary Alloys for Improved Oxygen Reduction Catalysis...

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

    Bimetallic and Ternary Alloys for Improved Oxygen Reduction Catalysis . Bimetallic and Ternary Alloys for Improved Oxygen Reduction Catalysis . Abstract: The research described in...

  12. Waste Heat Management Options for Improving Industrial Process...

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

    Heat Management Options for Improving Industrial Process Heating Systems Waste Heat Management Options for Improving Industrial Process Heating Systems This presentation covers...

  13. Automotive Fuel Efficiency Improvement via Exhaust Gas Waste...

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

    Fuel Efficiency Improvement via Exhaust Gas Waste Heat Conversion to Electricity Automotive Fuel Efficiency Improvement via Exhaust Gas Waste Heat Conversion to Electricity Working...

  14. Coherent Carbon Cryogel-Ammonia Borane Nanocomposites for Improved...

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

    Carbon Cryogel-Ammonia Borane Nanocomposites for Improved Hydrogen Storage. Coherent Carbon Cryogel-Ammonia Borane Nanocomposites for Improved Hydrogen Storage. Abstract: Ammonia...

  15. Continuous Energy Improvement in Motor Driven Systems - A Guidebook...

    Energy Savers [EERE]

    Continuous Energy Improvement in Motor Driven Systems - A Guidebook for Industry Continuous Energy Improvement in Motor Driven Systems - A Guidebook for Industry This guidebook...

  16. Improving Strategies via SMT Solving Thomas Martin Gawlitza David Monniaux

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Improving Strategies via SMT Solving Thomas Martin Gawlitza David Monniaux January 14, 2011 the system implicit and discover strategy improvements using SAT modulo real linear arithmetic (SMT

  17. Midstream Infrastructure Improvements Key to Realizing Full Potential...

    Office of Environmental Management (EM)

    Midstream Infrastructure Improvements Key to Realizing Full Potential of Domestic Natural Gas Midstream Infrastructure Improvements Key to Realizing Full Potential of Domestic...

  18. DOE to Launch Collaborative Effort with Industry to Improve Natural...

    Energy Savers [EERE]

    DOE to Launch Collaborative Effort with Industry to Improve Natural Gas Systems DOE to Launch Collaborative Effort with Industry to Improve Natural Gas Systems July 30, 2014 -...

  19. Erosion-Resistant Nanocoatings for Improved Energy Efficiency...

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

    Erosion-Resistant Nanocoatings for Improved Energy Efficiency in Gas Turbine Engines Erosion-Resistant Nanocoatings for Improved Energy Efficiency in Gas Turbine Engines...

  20. Improvements to Hydrogen Delivery Scenario Analysis Model (HDSAM...

    Office of Environmental Management (EM)

    Improvements to Hydrogen Delivery Scenario Analysis Model (HDSAM) and Results Improvements to Hydrogen Delivery Scenario Analysis Model (HDSAM) and Results This presentation by...

  1. Feasibility of OnBoard Thermoelectric Generation for Improved...

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

    OnBoard Thermoelectric Generation for Improved Vehicle Fuel Economy Feasibility of OnBoard Thermoelectric Generation for Improved Vehicle Fuel Economy Poster presentation at the...

  2. Now Available: Smart Grid Investments Improve Grid Reliability...

    Energy Savers [EERE]

    Smart Grid Investments Improve Grid Reliability, Resilience, and Storm Responses (November 2014) Now Available: Smart Grid Investments Improve Grid Reliability, Resilience, and...

  3. Idaho Waste Treatment Facility Improves Worker Safety and Efficiency...

    Office of Environmental Management (EM)

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  4. Adaptive Stack with Subdivided Cells for Improved Stability,...

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

    with Subdivided Cells for Improved Stability, Reliability, and Durability under Automotive Load Cycle Adaptive Stack with Subdivided Cells for Improved Stability, Reliability,...

  5. Fact #868: April 13, 2015 Automotive Technology Has Improved...

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

    8: April 13, 2015 Automotive Technology Has Improved Performance and Fuel Economy of New Light Vehicles Fact 868: April 13, 2015 Automotive Technology Has Improved Performance and...

  6. Improving Risk Assessment to Support State Energy Infrastructure...

    Energy Savers [EERE]

    Improving Risk Assessment to Support State Energy Infrastructure Decision Making Improving Risk Assessment to Support State Energy Infrastructure Decision Making May 22, 2015 -...

  7. Improving Steam System Performance: A Sourcebook for Industry...

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

    Improving Steam System Performance: A Sourcebook for Industry, Second Edition Improving Steam System Performance: A Sourcebook for Industry, Second Edition This sourcebook is...

  8. Progress of Negative Ion Source Improvement in N-NBI for JT-60U

    SciTech Connect (OSTI)

    Kawai, M. [Naka Fusion Research Establishment (Japan); Akino, N. [Naka Fusion Research Establishment (Japan); Ebisawa, N. [Naka Fusion Research Establishment (Japan); Grisham, L. [Princeton Plasma Physics Laboratory (United States); Hanada, M. [Naka Fusion Research Establishment (Japan); Honda, A. [Naka Fusion Research Establishment (Japan); Inoue, T. [Naka Fusion Research Establishment (Japan); Kazawa, M. [Naka Fusion Research Establishment (Japan); Kikuchi, K. [Naka Fusion Research Establishment (Japan); Kuriyama, M. [Japan Atomic Energy Research Institute (Japan); Kusanagi, N. [Naka Fusion Research Establishment (Japan); Mogaki, K. [Naka Fusion Research Establishment (Japan); Noto, K. [Naka Fusion Research Establishment (Japan); Ohga, T. [Naka Fusion Research Establishment (Japan); Ooshima, K. [Naka Fusion Research Establishment (Japan); Tanai, Y. [Naka Fusion Research Establishment (Japan); Umeda, N. [Naka Fusion Research Establishment (Japan); Usui, K. [Naka Fusion Research Establishment (Japan); Yamamoto, T. [Naka Fusion Research Establishment (Japan); Yamazaki, H. [Naka Fusion Research Establishment (Japan); Watanabe, K. [Naka Fusion Research Establishment (Japan)

    2003-09-15T23:59:59.000Z

    The negative-ion based neutral beam injection system developed by JAERI for JT-60U has been intended to generate a 500 keV and 10 MW beam for 10 seconds with two ion sources. Technical efforts to decrease heat loads on the accelerator grids, to improve non-uniformity of the source plasma, to increase voltage holding of the accelerator, and to optimize the operational parameters have been conducted intensively. A step-down control of the filament voltage was very effective to keep the acceleration current constant during the pulse duration. To suppress degradation of voltage holding of the accelerator, protection spark gaps of {approx}178 kV for each stage, its gap length is 73 mm, were confirmed to be effective.As results of these improvements, as of June 2002, the maximum injection power has reached 6.2 MW, and a pulse length has attained 10 seconds of the design value with a 2.6 MW beam.

  9. Objective 1: Extend Life, Improve Performance, and Maintain Safety of the Current Fleet Implementation Plan

    SciTech Connect (OSTI)

    Robert Youngblood

    2011-01-01T23:59:59.000Z

    Nuclear power has reliably and economically contributed almost 20% of electrical generation in the United States over the past two decades. It remains the single largest contributor (more than 70%) of non-greenhouse-gas-emitting electric power generation in the United States. By the year 2030, domestic demand for electrical energy is expected to grow to levels of 16 to 36% higher than 2007 levels. At the same time, most currently operating nuclear power plants will begin reaching the end of their 60 year operating licenses. Figure E 1 shows projected nuclear energy contribution to the domestic generating capacity. If current operating nuclear power plants do not operate beyond 60 years, the total fraction of generated electrical energy from nuclear power will begin to decline—even with the expected addition of new nuclear generating capacity. The oldest commercial plants in the United States reached their 40th anniversary in 2009. The U.S. Department of Energy Office of Nuclear Energy’s Research and Development (R&D) Roadmap has organized its activities in accordance with four objectives that ensure nuclear energy remains a compelling and viable energy option for the United States. The objectives are as follows: (1) develop technologies and other solutions that can improve the reliability, sustain the safety, and extend the life of the current reactors; (2) develop improvements in the affordability of new reactors to enable nuclear energy to help meet the Administration’s energy security and climate change goals; (3) develop sustainable nuclear fuel cycles; and (4) understand and minimize risks of nuclear proliferation and terrorism. The Light Water Reactor Sustainability (LWRS) Program is the primary programmatic activity that addresses Objective 1. This document describes how Objective 1 and the LWRS Program will be implemented. The existing U.S. nuclear fleet has a remarkable safety and performance record and today accounts for 70% of the low greenhouse gas emitting domestic electricity production. Extending the operating lifetimes of current plants beyond 60 years and, where possible, making further improvements in their productivity will generate early benefits from research, development, and demonstration investments in nuclear power. DOE’s role in Objective 1 is to partner with industry and the Nuclear Regulatory Commission in appropriate ways to support and conduct the long-term research needed to inform major component refurbishment and replacement strategies, performance enhancements, plant license extensions, and age-related regulatory oversight decisions. The DOE research, development, and demonstration role will focus on aging phenomena and issues that require long-term research and are generic to reactor type. Cost-shared demonstration activities will be conducted when appropriate.

  10. Objective 1: Extend Life, Improve Performance, and Maintain Safety of the Current Fleet Implementation Plan

    SciTech Connect (OSTI)

    Robert Youngblood

    2011-02-01T23:59:59.000Z

    Nuclear power has reliably and economically contributed almost 20% of electrical generation in the United States over the past two decades. It remains the single largest contributor (more than 70%) of non-greenhouse-gas-emitting electric power generation in the United States. By the year 2030, domestic demand for electrical energy is expected to grow to levels of 16 to 36% higher than 2007 levels. At the same time, most currently operating nuclear power plants will begin reaching the end of their 60 year operating licenses. Figure E 1 shows projected nuclear energy contribution to the domestic generating capacity. If current operating nuclear power plants do not operate beyond 60 years, the total fraction of generated electrical energy from nuclear power will begin to decline—even with the expected addition of new nuclear generating capacity. The oldest commercial plants in the United States reached their 40th anniversary in 2009. The U.S. Department of Energy Office of Nuclear Energy’s Research and Development (R&D) Roadmap has organized its activities in accordance with four objectives that ensure nuclear energy remains a compelling and viable energy option for the United States. The objectives are as follows: (1) develop technologies and other solutions that can improve the reliability, sustain the safety, and extend the life of the current reactors; (2) develop improvements in the affordability of new reactors to enable nuclear energy to help meet the Administration’s energy security and climate change goals; (3) develop sustainable nuclear fuel cycles; and (4) understand and minimize risks of nuclear proliferation and terrorism. The Light Water Reactor Sustainability (LWRS) Program is the primary programmatic activity that addresses Objective 1. This document describes how Objective 1 and the LWRS Program will be implemented. The existing U.S. nuclear fleet has a remarkable safety and performance record and today accounts for 70% of the low greenhouse gas emitting domestic electricity production. Extending the operating lifetimes of current plants beyond 60 years and, where possible, making further improvements in their productivity will generate early benefits from research, development, and demonstration investments in nuclear power. DOE’s role in Objective 1 is to partner with industry and the Nuclear Regulatory Commission in appropriate ways to support and conduct the long-term research needed to inform major component refurbishment and replacement strategies, performance enhancements, plant license extensions, and age-related regulatory oversight decisions. The DOE research, development, and demonstration role will focus on aging phenomena and issues that require long-term research and are generic to reactor type. Cost-shared demonstration activities will be conducted when appropriate.

  11. Neutral beamline with improved ion energy recovery

    DOE Patents [OSTI]

    Dagenhart, William K. (Oak Ridge, TN); Haselton, Halsey H. (Knoxville, TN); Stirling, William L. (Oak Ridge, TN); Whealton, John H. (Oak Ridge, TN)

    1984-01-01T23:59:59.000Z

    A neutral beamline generator with unneutralized ion energy recovery is provided which enhances the energy recovery of the full energy ion component of the beam exiting the neutralizer cell of the beamline. The unneutralized full energy ions exiting the neutralizer are deflected from the beam path and the electrons in the cell are blocked by a magnetic field applied transverse to the beamline in the cell exit region. The ions, which are generated at essentially ground potential and accelerated through the neutralizer cell by a negative acceleration voltage, are collected at ground potential. A neutralizer cell exit end region is provided which allows the magnetic and electric fields acting on the exiting ions to be closely coupled. As a result, the fractional energy ions exiting the cell with the full energy ions are reflected back into the gas cell. Thus, the fractional energy ions do not detract from the energy recovery efficiency of full energy ions exiting the cell which can reach the ground potential interior surfaces of the beamline housing.

  12. Improved Calculation of Thermal Fission Energy

    E-Print Network [OSTI]

    Ma, X B; Wang, L Z; Chen, Y X; Cao, J

    2013-01-01T23:59:59.000Z

    Thermal fission energy is one of the basic parameters needed in the calculation of antineutrino flux for reactor neutrino experiments. It is useful to improve the precision of the thermal fission energy calculation for current and future reactor neutrino experiments, which are aimed at more precise determination of neutrino oscillation parameters. In this article, we give new values for thermal fission energies of some common thermal reactor fuel iso-topes, with improvements on two aspects. One is more recent input data acquired from updated nuclear databases. The other, which is unprecedented, is a consideration of the production yields of fission fragments from both thermal and fast incident neutrons for each of the four main fuel isotopes. The change in calculated antineutrino flux due to the new values of thermal fission energy is about 0.33%, and the uncertainties of the new values are about 30% smaller.

  13. Polished Downhole Transducer Having Improved Signal Coupling

    DOE Patents [OSTI]

    Hall, David R. (Provo, UT); Fox, Joe (Spanish Fork, UT)

    2006-03-28T23:59:59.000Z

    Apparatus and methods to improve signal coupling in downhole inductive transmission elements to reduce the dispersion of magnetic energy at the tool joints and to provide consistent impedance and contact between transmission elements located along the drill string. A transmission element for transmitting information between downhole tools is disclosed in one embodiment of the invention as including an annular core constructed of a magnetically conductive material. The annular core forms an open channel around its circumference and is configured to form a closed channel by mating with a corresponding annular core along an annular mating surface. The mating surface is polished to provide improved magnetic coupling with the corresponding annular core. An annular conductor is disposed within the open channel.

  14. Improving tamper detection for hazardous waste security

    SciTech Connect (OSTI)

    Johnston, R. G. (Roger G.); Garcia, A. R. E. (Anthony R. E.); Pacheco, A. N. (Adam N.); Trujillo, S. J. (Sonia J.); Martinez, R. K. (Ronald K.); Martinez, D. D. (Debbie D.); Lopez, L. N. (Leon N.)

    2002-01-01T23:59:59.000Z

    After September 11, waste managers are increasingly expected to provide improved levels of security for the hazardous materials in their charge. Many low-level wastes that previously had minimal or no security must now be well protected, while high-level wastes require even greater levels of security than previously employed. This demand for improved security comes, in many cases, without waste managers being provided the necessary additional funding, personnel, or security expertise. Contributing to the problem is the fact that--at least in our experience--waste managers often fail to appreciate certain types of security vulnerabilities. They frequently overlook or underestimate the security risks associated with disgruntled or compromised insiders, or the potential legal and political liabilities associated with nonexistent or ineffective security. Also frequently overlooked are potential threats from waste management critics who could resort to sabotage, vandalism, or civil disobedience for purposes of discrediting a waste management program.

  15. Improved detection of atmospheric turbulence with SLODAR

    E-Print Network [OSTI]

    Michael Goodwin; Charles Jenkins; Andrew Lambert

    2007-06-19T23:59:59.000Z

    We discuss several improvements in the detection of atmospheric turbulence using SLOpe Detection And Ranging (SLODAR). Frequently, SLODAR observations have shown strong ground-layer turbulence, which is beneficial to adaptive optics. We show that current methods which neglect atmospheric propagation effects can underestimate the strength of high altitude turbulence by up to ~ 30%. We show that mirror and dome seeing turbulence can be a significant fraction of measured ground-layer turbulence, some cases up to ~ 50%. We also demonstrate a novel technique to improve the nominal height resolution, by a factor of 3, called Generalized SLODAR. This can be applied when sampling high-altitude turbulence, where the nominal height resolution is the poorest, or for resolving details in the important ground-layer.

  16. Energy curable compositions having improved cure speeds

    DOE Patents [OSTI]

    Halm, Leo W. (Blaine, MN)

    1993-01-01T23:59:59.000Z

    A composition and method provide improved physical properties and cure speed of polyurethane precursors, with or without free radical polymerizable monomers or oligomers present, by use of a two component catalyst system. The resin blend can be activated with a latent organometallic catalyst combined with an organic peroxide which can be a hydroperoxide or an acyl peroxide to decrease the cure time while increasing the break energy and tangent modulus of the system.

  17. Demand Controlled Ventilation for Improved Humidity Control

    E-Print Network [OSTI]

    Rogers, J. K.

    1996-01-01T23:59:59.000Z

    Demand Controlled Ventilation for Improved Humidity Control James K. Rogers, P.E. One Blacksmith Road Chelmsford, Massachusetts ABSTRACT Recently introduced technology makes it possible to continuously monitor for humidity in numerous... is brought in for ventilation. The high "latent load" inherent in this hot, humid outside air is often the reason for installing excess chiller capacity and the cause of peak power demands. Recent concerns over poor indoor air quality (IAQ) due...

  18. Quantifying Energy Savings by Improving Boiler Operation

    E-Print Network [OSTI]

    Carpenter, K.; Kissock, J. K.

    2005-01-01T23:59:59.000Z

    Dayton, OH ABSTRACT On/off operation and excess combustion air reduce boiler energy efficiency. This paper presents methods to quantify energy savings from switching to modulation control mode and reducing excess air in natural gas fired boilers... the accuracy of the methods. INTRODUCTION In our experience, common opportunities for improving boiler efficiency include switching from on/off to modulation control and reducing excess air. The decision about whether to pursue these opportunities...

  19. Method for improving fuel cell performance

    DOE Patents [OSTI]

    Uribe, Francisco A.; Zawodzinski, Thomas

    2003-10-21T23:59:59.000Z

    A method is provided for operating a fuel cell at high voltage for sustained periods of time. The cathode is switched to an output load effective to reduce the cell voltage at a pulse width effective to reverse performance degradation from OH adsorption onto cathode catalyst surfaces. The voltage is stepped to a value of less than about 0.6 V to obtain the improved and sustained performance.

  20. Improved energy recovery from geothermal reservoirs

    SciTech Connect (OSTI)

    Bodvarsson, G.S.; Pruess, K.; Lippmann, M.J.

    1981-01-01T23:59:59.000Z

    The behavior of a liquid-dominated geothermal reservoir in response to production from different horizons is studied using numerical simulation methods. The Olkaria geothermal field in Kenya is used as an example where a two-phase vapor-dominated zone overlies the main liquid-dominated reservoir. The possibility of improving energy recovery from vapor-dominated reservoirs by tapping deeper horizons is considered.

  1. Nonlinear Michelson interferometer for improved quantum metrology

    E-Print Network [OSTI]

    Alfredo Luis; Ángel Rivas

    2015-04-21T23:59:59.000Z

    We examine nonlinear quantum detection via a Michelson interferometer embedded in a gas with Kerr nonlinearity. The interferometer is illuminated by pulses of classical light. This strategy combines the robustness against practical imperfections of classical light with the improvement provided by nonlinear detection. Regarding ultimate quantum limits, we stress that, as a difference with linear schemes, the nonlinearity introduces pulse duration as a new variable into play along with the energy resources.

  2. Topological susceptibility with the improved Asqtad action

    SciTech Connect (OSTI)

    C. Bernard et al.

    2004-01-06T23:59:59.000Z

    As a test of the chiral properties of the improved Asqtad (staggered fermion) action, we have been measuring the topological susceptibility as a function of quark masses for 2 + 1 dynamical flavors. We report preliminary results, which show reasonable agreement with leading order chiral perturbation theory for lattice spacing less than 0.1 fm. The total topological charge, however, shows strong persistence over Monte Carlo time.

  3. Energy curable compositions having improved cure speeds

    DOE Patents [OSTI]

    Halm, L.W.

    1993-05-18T23:59:59.000Z

    The composition and method provide improved physical properties and cure speed of polyurethane precursors, with or without free radical polymerizable monomers or oligomers present, by use of a two component catalyst system. The resin blend can be activated with a latent organometallic catalyst combined with an organic peroxide which can be a hydroperoxide or an acyl peroxide to decrease the cure time while increasing the break energy and tangent modulus of the system.

  4. Improved Building Performance Through Effective Communication & Training

    E-Print Network [OSTI]

    Bates, R.

    2005-01-01T23:59:59.000Z

    IMPROVED BUILDING PERFORMANCE THROUGH EFFECTIVE COMMUNICATION & TRAINING Rick Bates Project Manager Environmental Education Foundation Gilbert, AZ ABSTRACT This paper describes the procedures involved in the development of a... for not understanding how buildings should be cared for. Separate course materials and separate training programs had been designed although the same underlying guidance was needed for both groups. The gender and age relationship between these groups...

  5. Improved limits on scalar weak couplings

    SciTech Connect (OSTI)

    Adelberger, E.G. (PPE Division, CERN, CH-1211 Geneve 23 (Switzerland) Department of Physics, FM-15, University of Washington, Seattle, Washington 98195 (United States))

    1993-05-10T23:59:59.000Z

    I point out that [beta]-delayed proton spectroscopy is a powerful probe of possible scalar contributions to nuclear [beta] decay, and use Schardt and Riisager's data on the shape of the beta-delayed proton peaks from the superallowed decays of [sup 32]Ar and [sup 33]Ar to set improved upper limits on such couplings. Implications of these limits for leptoquark masses are mentioned.

  6. Convective Cooling and Passive Stack Improvements in Motors (Presentation)

    SciTech Connect (OSTI)

    Bennion, K.

    2014-06-01T23:59:59.000Z

    This presentation discusses current research at NREL in convective cooling and passive stack improvements in motors.

  7. Changing the Conversation: Messages for Improving Public Understanding of Engineering

    E-Print Network [OSTI]

    drinking water to electric cars and faster microchips, engineers use their knowledge to improve people

  8. Improving customer order visibility to enable improved planning and decision making

    E-Print Network [OSTI]

    Krause, Karla M. (Karla Margarete)

    2011-01-01T23:59:59.000Z

    The General Purpose Drives organization of ABB Switzerland does not capture sufficient data on the movement of customer orders through the production process to make efficient decisions on where to allocate improvement ...

  9. Improving the chances of successful protein structure determination with a random forest classifier

    SciTech Connect (OSTI)

    Jahandideh, Samad [Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Road, La Jolla, CA 92307 (United States); Joint Center for Structural Genomics, (United States); Jaroszewski, Lukasz; Godzik, Adam, E-mail: adam@burnham.org [Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Road, La Jolla, CA 92307 (United States); Joint Center for Structural Genomics, (United States); University of California, San Diego, La Jolla, California (United States)

    2014-03-01T23:59:59.000Z

    Using an extended set of protein features calculated separately for protein surface and interior, a new version of XtalPred based on a random forest classifier achieves a significant improvement in predicting the success of structure determination from the primary amino-acid sequence. Obtaining diffraction quality crystals remains one of the major bottlenecks in structural biology. The ability to predict the chances of crystallization from the amino-acid sequence of the protein can, at least partly, address this problem by allowing a crystallographer to select homologs that are more likely to succeed and/or to modify the sequence of the target to avoid features that are detrimental to successful crystallization. In 2007, the now widely used XtalPred algorithm [Slabinski et al. (2007 ?), Protein Sci.16, 2472–2482] was developed. XtalPred classifies proteins into five ‘crystallization classes’ based on a simple statistical analysis of the physicochemical features of a protein. Here, towards the same goal, advanced machine-learning methods are applied and, in addition, the predictive potential of additional protein features such as predicted surface ruggedness, hydrophobicity, side-chain entropy of surface residues and amino-acid composition of the predicted protein surface are tested. The new XtalPred-RF (random forest) achieves significant improvement of the prediction of crystallization success over the original XtalPred. To illustrate this, XtalPred-RF was tested by revisiting target selection from 271 Pfam families targeted by the Joint Center for Structural Genomics (JCSG) in PSI-2, and it was estimated that the number of targets entered into the protein-production and crystallization pipeline could have been reduced by 30% without lowering the number of families for which the first structures were solved. The prediction improvement depends on the subset of targets used as a testing set and reaches 100% (i.e. twofold) for the top class of predicted targets.

  10. Improved-confinement plasmas at high temperature and high beta in the MST RFP

    SciTech Connect (OSTI)

    Chapman, B. E. [University of Wisconsin, Madison; Ahn, J. W. [University of Wisconsin, Madison; Almagri, A. F. [University of Wisconsin, Madison; Anderson, J. [University of Wisconsin, Madison; Combs, Stephen Kirk [ORNL; Foust, Charles R [ORNL; Kaufman, M. [University of Wisconsin, Madison

    2009-01-01T23:59:59.000Z

    We have increased substantially the electron and ion temperatures, the electron density, and the total beta in plasmas with improved energy confinement in the Madison Symmetric Torus (MST). The improved confinement is achieved with a well-established current profile control technique for reduction of magnetic tearing and reconnection. A sustained ion temperature > 1 keV is achieved with intensified reconnection-based ion heating followed immediately by current profile control. In the same plasmas, the electron temperature reaches 2 keV, and the electron thermal diffusivity drops to about 2 m(2) s(-1). The global energy confinement time is 12 ms. This and the reported temperatures are the largest values yet achieved in the reversed-field pinch (RFP). These results were attained at a density similar to 10(19) m(-3). By combining pellet injection with current profile control, the density has been quadrupled, and total beta has nearly doubled to a record value of about 26%. The Mercier criterion is exceeded in the plasma core, and both pressure-driven interchange and pressure-driven tearing modes are calculated to be linearly unstable, yet energy confinement is still improved. Transient momentum injection with biased probes reveals that global momentum transport is reduced with current profile control. Magnetic reconnection events drive rapid momentum transport related to large Maxwell and Reynolds stresses. Ion heating during reconnection events occurs globally, locally, or not at all, depending on which tearing modes are involved in the reconnection. To potentially augment inductive current profile control, we are conducting initial tests of current drive with lower-hybrid and electron-Bernstein waves.

  11. PERFORMANCE IMPROVEMENTS IN COMMERCIAL HEAT PUMP WATER HEATERS USING CARBON DIOXIDE

    SciTech Connect (OSTI)

    BOWERS C.D.; ELBEL S.; PETERSEN M.; HRNJAK P.S.

    2011-07-01T23:59:59.000Z

    Although heat pump water heaters are today widely accepted in Japan, where energy costs are high and government incentives for their use exist, acceptance of such a product in the U.S. has been slow. This trend is slowly changing with the introduction of heat pump water heaters into the residential market, but remains in the commercial sector. Barriers to heat pump water heater acceptance in the commercial market have historically been performance, reliability and first/operating costs. The use of carbon dioxide (R744) as the refrigerant in such a system can improve performance for relatively small increase in initial cost and make this technology more appealing. What makes R744 an excellent candidate for use in heat pump water heaters is not only the wide range of ambient temperatures within which it can operate, but also the excellent ability to match water to refrigerant temperatures on the high side, resulting in very high exit water temperatures of up to 82�ºC (180�ºF), as required by sanitary codes in the U.S.(Food Code, 2005), in a single pass, temperatures that are much more difficult to reach with other refrigerants. This can be especially attractive in applications where this water is used for the purpose of sanitation. While reliability has also been of concern historically, dramatic improvements have been made over the last several years through research done in the automotive industry and commercialization of R744 technology in residential water heating mainly in Japan. This paper presents the performance results from the development of an R744 commercial heat pump water heater of approximately 35kW and a comparison to a baseline R134a unit of the same capacity and footprint. In addition, recommendations are made for further improvements of the R744 system which could result in possible energy savings of up to 20%.

  12. NEXT GENERATION COMMERCIAL HEAT PUMPWATER HEATER USING CARBON DIOXIDE USING DIFFERENT IMPROVEMENT APPROACHES

    SciTech Connect (OSTI)

    Chad Bowers; Michael Petersen; Stefan Elbel; Pega Hrnjak

    2012-04-01T23:59:59.000Z

    Although heat pump water heaters are today widely accepted in Japan, where energy costs are high and government incentives for their use exist, acceptance of such a product in the U.S. has been slow. This trend is slowly changing with the introduction of heat pump water heaters into the residential market, but remains in the commercial sector. Barriers to heat pump water heater acceptance in the commercial market have historically been performance, reliability and first/operating costs. The use of carbon dioxide (R744) as the refrigerant in such a system can improve performance for relatively small increase in initial cost and make this technology more appealing. What makes R744 an excellent candidate for use in heat pump water heaters is not only the wide range of ambient temperatures within which it can operate, but also the excellent ability to match water to refrigerant temperatures on the high side, resulting in very high exit water temperatures of up to 82�ºC, as required by sanitary codes in the U.S. (Food Code, 2005), in a single pass, temperatures that are much more difficult to reach with other refrigerants. This can be especially attractive in applications where this water is used for the purpose of sanitation. While reliability has also been of concern historically, dramatic improvements have been made over the last several years through research done in the automotive industry and commercialization of R744 technology in residential water heating mainly in Japan. This paper presents the performance results from the development of an R744 commercial heat pump water heater of approximately 35 kW and a comparison to a baseline R134a unit of the same capacity and footprint. In addition, recommendations are made for further improvements of the R744 system which could result in possible energy savings of up to 20 %.

  13. IGNITION IMPROVEMENT OF LEAN NATURAL GAS MIXTURES

    SciTech Connect (OSTI)

    Jason M. Keith

    2005-02-01T23:59:59.000Z

    This report describes work performed during a thirty month project which involves the production of dimethyl ether (DME) on-site for use as an ignition-improving additive in a compression-ignition natural gas engine. A single cylinder spark ignition engine was converted to compression ignition operation. The engine was then fully instrumented with a cylinder pressure transducer, crank shaft position sensor, airflow meter, natural gas mass flow sensor, and an exhaust temperature sensor. Finally, the engine was interfaced with a control system for pilot injection of DME. The engine testing is currently in progress. In addition, a one-pass process to form DME from natural gas was simulated with chemical processing software. Natural gas is reformed to synthesis gas (a mixture of hydrogen and carbon monoxide), converted into methanol, and finally to DME in three steps. Of additional benefit to the internal combustion engine, the offgas from the pilot process can be mixed with the main natural gas charge and is expected to improve engine performance. Furthermore, a one-pass pilot facility was constructed to produce 3.7 liters/hour (0.98 gallons/hour) DME from methanol in order to characterize the effluent DME solution and determine suitability for engine use. Successful production of DME led to an economic estimate of completing a full natural gas-to-DME pilot process. Additional experimental work in constructing a synthesis gas to methanol reactor is in progress. The overall recommendation from this work is that natural gas to DME is not a suitable pathway to improved natural gas engine performance. The major reasons are difficulties in handling DME for pilot injection and the large capital costs associated with DME production from natural gas.

  14. Improved fermentative alcohol production. [Patent application

    DOE Patents [OSTI]

    Wilke, C.R.; Maiorella, B.L.; Blanch, H.W.; Cysewski, G.R.

    1980-11-26T23:59:59.000Z

    An improved fermentation process is described for producing alcohol which includes the combination of vacuum fermentation and vacuum distillation. Preferably, the vacuum distillation is carried out in two phases, one a fermentor proper operated at atmospheric pressure and a flash phase operated at reduced pressure with recycle of fermentation brew having a reduced alcohol content to the fermentor, using vapor recompression heating of the flash-pot recycle stream to heat the flash-pot or the distillation step, and using water load balancing (i.e., the molar ratio of water in the fermentor feed is the same as the molar ratio of water in the distillation overhead).

  15. Energy conversion device with improved seal

    DOE Patents [OSTI]

    Miller, Gerald R. (Salt Lake City, UT); Virkar, Anil V. (Midvale, UT)

    1980-01-01T23:59:59.000Z

    An energy conversion device comprising an improved sealing member adapted to seal a cation-permeable casing to the remainder of the device. The sealing member comprises a metal substrate which (i) bears a nonconductive and corrosion resistant coating on the major surface to which said casing is sealed, and (ii) is corrugated so as to render it flexible, thereby allowing said member to move relative to said casing without cracking the seal therebetween. Corrugations may be circumferential, radial, or both radial and circumferential so as to form dimples. The corrugated member may be in form of a bellows or in a substantially flat form, such as a disc.

  16. Metals purification by improved vacuum arc remelting

    DOE Patents [OSTI]

    Zanner, Frank J. (Sandia Park, NM); Williamson, Rodney L. (Albuquerque, NM); Smith, Mark F. (Albuquerque, NM)

    1994-12-13T23:59:59.000Z

    The invention relates to improved apparatuses and methods for remelting metal alloys in furnaces, particularly consumable electrode vacuum arc furnaces. Excited reactive gas is injected into a stationary furnace arc zone, thus accelerating the reduction reactions which purify the metal being melted. Additionally, a cooled condensation surface is disposed within the furnace to reduce the partial pressure of water in the furnace, which also fosters the reduction reactions which result in a purer produced ingot. Methods and means are provided for maintaining the stationary arc zone, thereby reducing the opportunity for contaminants evaporated from the arc zone to be reintroduced into the produced ingot.

  17. Improved FGD dewatering process cuts solid wastes

    SciTech Connect (OSTI)

    Moer, C.; Fernandez, J.; Carraro, B. [Duke Energy (United States)

    2009-08-15T23:59:59.000Z

    In 2007, Duke Energy's W.H. Zimmer Station set out to advance the overall performance of its flue gas desulfurization (FGD) dewatering process. The plant implemented a variety of measures, including upgrading water-solids separation, improving polymer program effectiveness and reliability, optimizing treatment costs, reducing solid waste sent to the landfill, decreasing labor requirements, and maintaining septic-free conditions in clarifiers. The changes succeeded in greatly reducing solid waste generation and achieving total annual savings of over half a million dollars per year. 8 figs., 1 tab.

  18. Improvement of ASME NH for Grade 91

    SciTech Connect (OSTI)

    Bernard Riou

    2007-10-09T23:59:59.000Z

    This report has been prepared in the context of Task 3 of the ASME/DOE Gen IV material project. It has been identified that creep-fatigue evaluation procedures presently available in ASME (1) and RCC-MR (2) have been mainly developed for austenitic stainless steels and may not be suitable for cyclic softening materials such as mod 9 Cr 1 Mo steel (grade 91). The aim of this document is, starting from experimental test results, to perform a review of the procedures and, if necessary, provide recommendations for their improvements.

  19. Biotechnological Approaches for Genetic Improvement of Sorghum

    E-Print Network [OSTI]

    Urriola Simons, Jazmina Itzel

    2013-08-05T23:59:59.000Z

    bicolor L.) constitutes an important source of food, feed and fodder in many parts of the world, and additionally, its role as a bioenergy crop is growing in some countries. Recently, there has been an increasing interest in sorghum cultivation... Tobacco MS Growth improved, leaf TAA decreased PsGS1 (EC 6.3.1.2) CaMV 35S Poplar HS Leaf DW increased (112% under LN AND 6% under HN) PvGS1 Rubisco small subunit Wheat Peat-based compost Root and grain DW increased, enhanced capacity to accumulate...

  20. Improving the Dirac Operator in Lattice QCD

    E-Print Network [OSTI]

    Christof Gattringer; C. B. Lang

    2001-11-22T23:59:59.000Z

    Recently various new concepts for the construction of Dirac operators in lattice Quantum Chromodynamics (QCD) have been introduced. These operators satisfy the so-called Ginsparg-Wilson condition (GWC), thus obeying the Atiyah-Singer index theorem and violating chiral symmetry only in a modest and local form. Here we present studies in 4-d for SU(3) gauge configurations with non-trivial topological content. We study the flow of eigenvalues and we compare the numerical stability and efficiency of a recently suggested chirally improved operator with that of others in this respect.

  1. Genetic improvement of cotton in Turkey

    E-Print Network [OSTI]

    Eksi, Ismail

    1990-01-01T23:59:59.000Z

    disease loss. Proc. Beltwide Cotton Prod. Res. Conf. , San Antonio, TX. National Cotton Council of America, Memphis, TN. 1982. The MAR (multi-adversity resistance) system for genetic improvement of cotton. Plant Dis. 66:172-176. Bridge, R. R. and L. D.... McDonald. 1987. Beltwide efforts and trends in development of varieties for short-season production systems. Proc. Beltwide Cotton Prod. Conf. , National Cotton. Council of America. Memphis, TN. pp. 82-85. Christidis, B. G. and G. J. Harrison...

  2. Genetic improvement of cotton in Turkey 

    E-Print Network [OSTI]

    Eksi, Ismail

    1990-01-01T23:59:59.000Z

    disease loss. Proc. Beltwide Cotton Prod. Res. Conf. , San Antonio, TX. National Cotton Council of America, Memphis, TN. 1982. The MAR (multi-adversity resistance) system for genetic improvement of cotton. Plant Dis. 66:172-176. Bridge, R. R. and L. D.... McDonald. 1987. Beltwide efforts and trends in development of varieties for short-season production systems. Proc. Beltwide Cotton Prod. Conf. , National Cotton. Council of America. Memphis, TN. pp. 82-85. Christidis, B. G. and G. J. Harrison...

  3. Improved Fischer-Tropsch Slurry Reactors

    SciTech Connect (OSTI)

    Andrew Lucero

    2009-03-20T23:59:59.000Z

    The conversion of synthesis gas to hydrocarbons or alcohols involves highly exothermic reactions. Temperature control is a critical issue in these reactors for a number of reasons. Runaway reactions can be a serious safety issue, even raising the possibility of an explosion. Catalyst deactivation rates tend to increase with temperature, particularly of there are hot spots in the reactor. For alcohol synthesis, temperature control is essential because it has a large effect on the selectivity of the catalysts toward desired products. For example, for molybdenum disulfide catalysts unwanted side products such as methane, ethane, and propane are produced in much greater quantities if the temperature increases outside an ideal range. Slurry reactors are widely regarded as an efficient design for these reactions. In a slurry reactor a solid catalyst is suspended in an inert hydrocarbon liquid, synthesis gas is sparged into the bottom of the reactor, un-reacted synthesis gas and light boiling range products are removed as a gas stream, and heavy boiling range products are removed as a liquid stream. This configuration has several positive effects for synthesis gas reactions including: essentially isothermal operation, small catalyst particles to reduce heat and mass transfer effects, capability to remove heat rapidly through liquid vaporization, and improved flexibility on catalyst design through physical mixtures in addition to use of compositions that cannot be pelletized. Disadvantages include additional mass transfer resistance, potential for significant back-mixing on both the liquid and gas phases, and bubble coalescence. In 2001 a multiyear project was proposed to develop improved FT slurry reactors. The planned focus of the work was to improve the reactors by improving mass transfer while considering heat transfer issues. During the first year of the project the work was started and several concepts were developed to prepare for bench-scale testing. PowerEnerCat was unable to raise their cash contribution for the project, and the work was stopped. This report summarizes some of the progress of the project and the concepts that were intended for experimental tests.

  4. Improved superconducting qubit coherence using titanium nitride

    E-Print Network [OSTI]

    J. Chang; M. R. Vissers; A. D. Corcoles; M. Sandberg; J. Gao; David W. Abraham; Jerry M. Chow; Jay M. Gambetta; M. B. Rothwell; G. A. Keefe; Matthias Steffen; D. P. Pappas

    2013-03-17T23:59:59.000Z

    We demonstrate enhanced relaxation and dephasing times of transmon qubits, up to ~ 60 \\mu s by fabricating the interdigitated shunting capacitors using titanium nitride (TiN). Compared to lift-off aluminum deposited simultaneously with the Josephson junction, this represents as much as a six-fold improvement and provides evidence that previous planar transmon coherence times are limited by surface losses from two-level system (TLS) defects residing at or near interfaces. Concurrently, we observe an anomalous temperature dependent frequency shift of TiN resonators which is inconsistent with the predicted TLS model.

  5. Improved method for preparing rare earth sesquichalcogenides

    DOE Patents [OSTI]

    Takeshita, T.; Beaudry, B.J.; Gschneidner, K.A. Jr.

    1982-04-14T23:59:59.000Z

    An improved method for the preparation of high purity rare earth sesquichalcogenides is described. The rare earth, as one or more pieces of the metal, is sealed under a vacuum with a stoichiometric amount of sulfur or selenium and a small amount of iodine into a quartz reaction vessel. The sealed vessel is then heated to above the vaporization temperature of the chalcogen and below the melting temperature of the rare earth metal and maintained until the product has been formed. The iodine is then vaporized off leaving a pure product. The rare earth sulfides and selenides thus formed are useful as semiconductors and as thermoelectric generators. 3 tables.

  6. Heat pipe with improved wick structures

    DOE Patents [OSTI]

    Benson, David A. (Albuquerque, NM); Robino, Charles V. (Albuquerque, NM); Palmer, David W. (Albuquerque, NM); Kravitz, Stanley H. (Placitas, NM)

    2000-01-01T23:59:59.000Z

    An improved planar heat pipe wick structure having projections formed by micromachining processes. The projections form arrays of interlocking, semi-closed structures with multiple flow paths on the substrate. The projections also include overhanging caps at their tops to increase the capillary pumping action of the wick structure. The capped projections can be formed in stacked layers. Another layer of smaller, more closely spaced projections without caps can also be formed on the substrate in between the capped projections. Inexpensive materials such as Kovar can be used as substrates, and the projections can be formed by electrodepositing nickel through photoresist masks.

  7. Improved Soybean Oil for Biodiesel Fuel

    SciTech Connect (OSTI)

    Tom Clemente; Jon Van Gerpen

    2007-11-30T23:59:59.000Z

    The goal of this program was to generate information on the utility of soybean germplasm that produces oil, high in oleic acid and low in saturated fatty acids, for its use as a biodiesel. Moreover, data was ascertained on the quality of the derived soybean meal (protein component), and the agronomic performance of this novel soybean germplasm. Gathering data on these later two areas is critical, with respect to the first, soybean meal (protein) component is a major driver for commodity soybean, which is utilized as feed supplements in cattle, swine, poultry and more recently aquaculture production. Hence, it is imperative that the resultant modulation in the fatty acid profile of the oil does not compromise the quality of the derived meal, for if it does, the net value of the novel soybean will be drastically reduced. Similarly, if the improved oil trait negative impacts the agronomics (i.e. yield) of the soybean, this in turn will reduce the value of the trait. Over the course of this program oil was extruded from approximately 350 bushels of soybean designated 335-13, which produces oil high in oleic acid (>85%) and low in saturated fatty acid (<6%). As predicted improvement in cold flow parameters were observed as compared to standard commodity soybean oil. Moreover, engine tests revealed that biodiesel derived from this novel oil mitigated NOx emissions. Seed quality of this soybean was not compromised with respect to total oil and protein, nor was the amino acid profile of the derived meal as compared to the respective control soybean cultivar with a conventional fatty acid profile. Importantly, the high oleic acid/low saturated fatty acids oil trait was not impacted by environment and yield was not compromised. Improving the genetic potential of soybean by exploiting the tools of biotechnology to improve upon the lipid quality of the seed for use in industrial applications such as biodiesel will aid in expanding the market for the crop. This in turn, may lead to job creation in rural areas of the country and help stimulate the agricultural economy. Moreover, production of soybean with enhanced oil quality for biodiesel may increase the attractiveness of this renewable, environmentally friendly fuel.

  8. MECHANISTIC STUDIES OF IMPROVED FOAM EOR PROCESSES

    SciTech Connect (OSTI)

    William R. Rossen

    2005-01-05T23:59:59.000Z

    The objective of this research is to widen the application of foam to enhanced oil recovery (EOR) by investigating fundamental mechanisms of foams in porous media. This research will lay the groundwork for more applied research on foams for improved sweep efficiency in miscible gas, steam and surfactant-based EOR. Task 1 investigates the pore-scale interactions between foam bubbles and polymer molecules. Task 2 examines the mechanisms of gas trapping, and interaction between gas trapping and foam effectiveness. Task 3 investigates mechanisms of foam generation in porous media.

  9. MECHANISTIC STUDIES OF IMPROVED FOAM EOR PROCESSES

    SciTech Connect (OSTI)

    William R. Rossen

    2005-03-16T23:59:59.000Z

    The objective of this research is to widen the application of foam to enhanced oil recovery (EOR) by investigating fundamental mechanisms of foams in porous media. This research is to lay the groundwork for more-applied research on foams for improved sweep efficiency in miscible gas, steam and surfactant-based EOR. Task 1 investigates the pore-scale interactions between foam bubbles and polymer molecules. Task 2 examines the mechanisms of gas trapping, and interaction between gas trapping and foam effectiveness. Task 3 investigates mechanisms of foam generation in porous media.

  10. Improved medical implants comes from nanostructuring

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC) EnvironmentalGyroSolé(tm)HydrogenRFP » Important Trinity / NERSC-8Improved medical

  11. Improving Reuse & Recycling | Critical Materials Institute

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC) EnvironmentalGyroSolé(tm)HydrogenRFP » Important Trinity /EnergyImproving Reuse

  12. Improving Project Management | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking of BlytheDepartment of Energy IRSJuly 2012|| DepartmentImproving Project

  13. Improving DOE Wide Recruitment and Hiring Processes

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33Frequently Asked Questions for DOEthe RankingReform at theDepartment of Energy Improved7, 2010

  14. Improving Convective Parameterization Using ARM Data

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh School footballHydrogenITLaboratory inImproving Convective

  15. Improved Biomass Cooking Stoves | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup | OpenHunan Runhua New EnergyIT PowerImagine Energy Inc JumpImproved

  16. Improving alternative fuel utilization: detailed kinetic combustion

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(Fact Sheet),EnergyImprovement of the Lost FoamCooling

  17. SURFACTANT - POLYMER INTERACTION FOR IMPROVED OIL RECOVERY

    SciTech Connect (OSTI)

    Unknown

    1998-10-01T23:59:59.000Z

    The goal of this research is to use the interaction between a surfactant and a polymer for efficient displacement of tertiary oil by improving slug integrity, adsorption and mobility control. Surfactant--polymer flooding has been shown to be highly effective in laboratory-scale linear floods. The focus of this proposal is to design an inexpensive surfactant-polymer mixture that can efficiently recover tertiary oil by avoiding surfactant slug degradation high adsorption and viscous/heterogeneity fingering. A mixture comprising a ''pseudo oil'' with appropriate surfactant and polymer has been selected to study micellar-polymer chemical flooding. The physical properties and phase behavior of this system have been determined. A surfactant-polymer slug has been designed to achieve high efficiency recovery by improving phase behavior and mobility control. Recovery experiments have been performed on linear cores and a quarter 5-spot. The same recovery experiments have been simulated using a commercially available simulator (UTCHEM). Good agreement between experimental data and simulation results has been achieved.

  18. Improved Water Flooding through Injection Brine Modification

    SciTech Connect (OSTI)

    Robertson, Eric Partridge; Thomas, Charles Phillip; Morrow, Norman; (U of Wyoming)

    2003-01-01T23:59:59.000Z

    Crude oil/brine/rock interactions can lead to large variations in the displacement efficiency of waterflooding, by far the most widely applied method of improved oil recovery. Laboratory waterflood tests show that injection of dilute brine can increase oil recovery. Numerous fields in the Powder River basin have been waterflooded using low salinity brine (about 500 ppm) from the Madison limestone or Fox Hills sandstone. Although many uncertainties arise in the interpretation and comparison of field production data, injection of low salinity brine appears to give higher recovery compared to brine of moderate salinity (about 7,000 ppm). Laboratory studies of the effect of brine composition on oil recovery cover a wide range of rock types and crude oils. Oil recovery increases using low salinity brine as the injection water ranged from a low of no notable increase to as much as 37.0% depending on the system being studied. Recovery increases using low salinity brine after establishing residual oil saturation (tertiary mode) ranged from no significant increase to 6.0%. Tests with two sets of reservoir cores and crude oil indicated slight improvement in recovery for low salinity brine. Crude oil type and rock type (particularly the presence and distribution of kaolinite) both play a dominant role in the effect that brine composition has on waterflood oil recovery.

  19. Improvements on the accuracy of beam bugs

    SciTech Connect (OSTI)

    Chen, Y.J.; Fessenden, T.

    1998-08-17T23:59:59.000Z

    At LLNL resistive wall monitors are used to measure the current and position used on ETA-II show a droop in signal due to a fast redistribution time constant of the signals. This paper presents the analysis and experimental test of the beam bugs used for beam current and position measurements in and after the fast kicker. It concludes with an outline of present and future changes that can be made to improve the accuracy of these beam bugs. of intense electron beams in electron induction linacs and beam transport lines. These, known locally as ''beam bugs'', have been used throughout linear induction accelerators as essential diagnostics of beam current and location. Recently, the development of a fast beam kicker has required improvement in the accuracy of measuring the position of beams. By picking off signals at more than the usual four positions around the monitor, beam position measurement error can be greatly reduced. A second significant source of error is the mechanical variation of the resistor around the bug.

  20. Biospecimen Reporting for Improved Study Quality (BRISQ)

    SciTech Connect (OSTI)

    National Cancer Institute; Jewell, Ph.D., Scott D.; Seijo, M.S., Edward; Kelly, Ph.D., Andrea; Somiari, Ph.D., Stella; B.Chir., M.B.; McShane, Ph.D., Lisa M.; Clark, M.D., Douglas; Greenspan, M.D., Renata; Hayes, M.D., Daniel F.; Hainaut, Ph.D., M.S., Pierre; Kim, Paula; Mansfield, Ph.D., Elizabeth; Potapova, Ph.D., Olga; Riegman, Ph.D., Peter; Rubinstein, Ph.D., Yaffa; Weier, Ph.D., Heinz-Ulrich; Zhu, Ph.D., Claire; Moore, Ph.D., Helen M.; Vaught, Ph.D., Jim; Watson, Peter

    2010-09-02T23:59:59.000Z

    Human biospecimens are subjected to collection, processing, and storage that can significantly alter their molecular composition and consistency. These biospecimen preanalytical factors, in turn, influence experimental outcomes and the ability to reproduce scientific results. Currently, the extent and type of information specific to the biospecimen preanalytical conditions reported in scientific publications and regulatory submissions varies widely. To improve the quality of research that uses human tissues, it is crucial that information on the handling of biospecimens be reported in a thorough, accurate, and standardized manner. The Biospecimen Reporting for Improved Study Quality (BRISQ) recommendations outlined herein are intended to apply to any study in which human biospecimens are used. The purpose of reporting these details is to supply others, from researchers to regulators, with more consistent and standardized information to better evaluate, interpret, compare, and reproduce the experimental results. The BRISQ guidelines are proposed as an important and timely resource tool to strengthen communication and publications on biospecimen-related research and to help reassure patient contributors and the advocacy community that their contributions are valued and respected.

  1. Biospecimen Reporting for Improved Study Quality

    SciTech Connect (OSTI)

    Moore, Ph.D., Helen M.; Kelly, Ph.D., Andrea B.; Jewell, Ph.D., Scott D.; McShane, Ph.D., Lisa M.; Clark, M.D., Douglas P.; Greenspan, M.D., Renata; Hayes, M.D., Daniel F.; Hainaut, Ph.D., Pierre; Kim, Paula; Mansfield, Ph.D., Elizabeth A.; Potapova, Ph.D., Olga; Riegman, Ph.D., Peter; Rubinstein, Ph.D., Yaffa; Seijo, M.S., Edward; Somiari, Ph.D., Stella; Chir., B; Weier, Ph.D., Heinz-Ulrich; Zhu, Ph.D., Claire; Vaught, Ph.D., Jim; Watson,M.B., Peter

    2010-12-27T23:59:59.000Z

    Human biospecimens are subjected to collection, processing, and storage that can significantly alter their molecular composition and consistency. These biospecimen preanalytical factors, in turn, influence experimental outcomes and the ability to reproduce scientific results. Currently, the extent and type of information specific to the biospecimen preanalytical conditions reported in scientific publications and regulatory submissions varies widely. To improve the quality of research that uses human tissues, it is crucial that information on the handling of biospecimens be reported in a thorough, accurate, and standardized manner. The Biospecimen Reporting for Improved Study Quality (BRISQ) recommendations outlined herein are intended to apply to any study in which human biospecimens are used. The purpose of reporting these details is to supply others, from researchers to regulators, with more consistent and standardized information to better evaluate, interpret, compare, and reproduce the experimental results. The BRISQ guidelines are proposed as an important and timely resource tool to strengthen communication and publications on biospecimen-related research and to help reassure patient contributors and the advocacy community that their contributions are valued and respected.

  2. BISON Contact Improvements CASL FY14 Report

    SciTech Connect (OSTI)

    B. W. Spencer; J. D. Hales; D. R. Gaston; D. A. Karpeev; R. L. Williamson; S. R. Novascone; D. M. Perez; R. J. Gardner; K. A. Gamble

    2014-09-01T23:59:59.000Z

    The BISON code is the foundation for multiple fuel performance modeling efforts, and is cur- rently under heavy development. For a variety of fuel forms, the effects of heat conduction across a gap and mechanical contact between components of a fuel system are very significant. It is thus critical that BISON have robust capabilities for enforcement of thermal and mechanical contact. BISON’s solver robustness has generally been quite good before mechanical contact between the fuel and cladding occurs, but there have been significant challenges obtaining converged so- lutions once that contact occurs and the solver begins to enforce mechanical contact constraints. During the current year, significant development effort has been focused on the enforcement of mechanical contact to provide improved solution robustness. In addition to this work to improve mechanical contact robustness, an investigation into ques- tionable results attributable to thermal contact has been performed. This investigation found that the order of integration typically used on the surfaces involved in thermal contact was not suffi- ciently high. To address this problem, a new option was provided to permit the use of a different integration order for surfaces, and new usage recommendations were provided.

  3. Progress in photovoltaic system and component improvements

    SciTech Connect (OSTI)

    Thomas, H.P.; Kroposki, B.; McNutt, P.; Witt, C.E. [National Renewable Energy Lab., Golden, CO (United States); Bower, W.; Bonn, R.; Hund, T.D. [Sandia National Labs., Albuquerque, NM (United States)

    1998-07-01T23:59:59.000Z

    The Photovoltaic Manufacturing Technology (PVMaT) project is a partnership between the US government (through the US Department of Energy [DOE]) and the PV industry. Part of its purpose is to conduct manufacturing technology research and development to address the issues and opportunities identified by industry to advance photovoltaic (PV) systems and components. The project was initiated in 1990 and has been conducted in several phases to support the evolution of PV industrial manufacturing technology. Early phases of the project stressed PV module manufacturing. Starting with Phase 4A and continuing in Phase 5A, the goals were broadened to include improvement of component efficiency, energy storage and manufacturing and system or component integration to bring together all elements for a PV product. This paper summarizes PV manufacturers` accomplishments in components, system integration, and alternative manufacturing methods. Their approaches have resulted in improved hardware and PV system performance, better system compatibility, and new system capabilities. Results include new products such as Underwriters Laboratories (UL)-listed AC PV modules, modular inverters, and advanced inverter designs that use readily available and standard components. Work planned in Phase 5A1 includes integrated residential and commercial roof-top systems, PV systems with energy storage, and 300-Wac to 4-kWac inverters.

  4. Improved liquid-film electron stripper

    DOE Patents [OSTI]

    Gavin, B.F.

    1984-11-01T23:59:59.000Z

    An improved liquid-film electron stripper particularly for high intensity heavy ion beams which produces constant regenerated, stable, free-standing liquid films having an adjustable thickness between 0.3 to 0.05 microns. The improved electron stripper is basically composed of at least one high speed, rotating disc with a very sharp, precision-like, ground edge on one side of the disc's periphery and with highly polished, flat, radial surface adjacent the sharp edge. A fine stream of liquid, such as oil, impinges at a 90/sup 0/ angle adjacent the disc's sharp outer edge. Film terminators, located at a selected distance from the disc perimeter are positioned approximately perpendicular to the film. The terminators support, shape, and stretch the film and are arranged to assist in the prevention of liquid droplet formation by directing the collected film to a reservoir below without breaking or interfering with the film. One embodiment utilizes two rotating discs and associated terminators, with the discs rotating so as to form films in opposite directions, and with the second disc being located down beam-line relative to the first disc.

  5. Biospecimen Reporting for Improved Study Quality (BRISQ)

    SciTech Connect (OSTI)

    Moore, Ph.D., Helen M.; Kelly Ph.D., Andrea; Jewell Ph.D., Scott D.; McShane Ph.D., Lisa M.; Clark M.D., Douglas P.; Greenspan M.D., Renata; Hayes M.D., Daniel F.; Hainaut Ph.D.,, Pierre; Kim, Paula; Mansfield Ph.D., Elizabeth; Potapova Ph.D., Olga; Riegman Ph.D., Peter; Rubinstein Ph.D., Yaffa; Seijo M.S., Edward; Somiari Ph.D., Stella; Watson M.B., Peter; Weier Ph.D., Heinz-Ulrich; Zhu Ph.D., Claire; Vaught Ph.D., Jim

    2011-04-26T23:59:59.000Z

    Human biospecimens are subject to a number of different collection, processing, and storage factors that can significantly alter their molecular composition and consistency. These biospecimen preanalytical factors, in turn, influence experimental outcomes and the ability to reproduce scientific results. Currently, the extent and type of information specific to the biospecimen preanalytical conditions reported in scientific publications and regulatory submissions varies widely. To improve the quality of research utilizing human tissues it is critical that information regarding the handling of biospecimens be reported in a thorough, accurate, and standardized manner. The Biospecimen Reporting for Improved Study Quality (BRISQ) recommendations outlined herein are intended to apply to any study in which human biospecimens are used. The purpose of reporting these details is to supply others, from researchers to regulators, with more consistent and standardized information to better evaluate, interpret, compare, and reproduce the experimental results. The BRISQ guidelines are proposed as an important and timely resource tool to strengthen communication and publications around biospecimen-related research and help reassure patient contributors and the advocacy community that the contributions are valued and respected.

  6. Genome Improvement at JGI-HAGSC

    SciTech Connect (OSTI)

    Grimwood, Jane: Schmutz, Jeremy, J.: Myers, Richard, M.

    2012-03-03T23:59:59.000Z

    Since the completion of the sequencing of the human genome, the JGI has rapidly expanded its scientific goals in several DOE mission-relevant areas. At the JGI-HAGSC, we have kept pace with this rapid expansion of projects with our focus on assessing, assembling, improving and finishing eukaryotic whole genome shotgun (WGS) projects for which the shotgun sequence is generated at the Production Genomic Facility (JGI-PGF). We follow this by combining the draft WGS with genomic resources generated at JGI-HAGSC or in collaborator laboratories (including BAC end sequences, genetic maps and FLcDNA sequences) to produce an improved draft sequence. For eukaryotic genomes important to the DOE mission, we then add further information from directed experiments to produce reference genomic sequences that are publicly available for any scientific researcher. Also, we have continued our program for producing BAC-based finished sequence, both for adding information to JGI genome projects and for small BAC-based sequencing projects proposed through any of the JGI sequencing programs. We have now built our computational expertise in WGS assembly and analysis and have moved eukaryotic genome assembly from the JGI-PGF to JGI-HAGSC. We have concentrated our assembly development work on large plant genomes and complex fungal and algal genomes.

  7. Legal improvements brighten North Africa production outlook

    SciTech Connect (OSTI)

    NONE

    1997-05-12T23:59:59.000Z

    North Africa`s three main oil producing countries soon will reap benefits of past moves by their governments to encourage investment by international companies. Production of crude oil and natural gas in Algeria, Egypt, and Libya is ready to increase from suppressed levels of the recent past, says International Energy Agency, Paris. The gains are possible despite political risks, total reserves accounting for only 4% of the world`s crude reserves, and oil prices well below levels of the 1980s, when the countries` flow rates peaked. The reason: producing oil in North Africa is profitable. In a recent study entitled North Africa Oil and Gas, IEA attributes the bright production outlook to improvements that the countries` governments have made in the past decade to hydrocarbon laws and the fiscal terms they offer international investors. According to announced plans, the three countries` combined capacity to produce crude oil will rise 18% by the year 2000 to 3.65 million b/d, and a further gain of 700,000 b/d is possible. IEA expects production capacity for natural gas to increase 50% from its 1995 level by 2000 to a combined 139.4 billion cu m/year. This paper discusses production capacities, Algeria`s record, improvements in Egypt, and Libya`s changes.

  8. Industrial energy-efficiency-improvement program

    SciTech Connect (OSTI)

    Not Available

    1980-12-01T23:59:59.000Z

    Progress made by industry toward attaining the voluntary 1980 energy efficiency improvement targets is reported. The mandatory reporting population has been expanded from ten original industries to include ten additional non-targeted industries and all corporations using over one trillion Btu's annually in any manufacturing industry. The ten most energy intensive industries have been involved in the reporting program since the signing of the Energy Policy and Conservation Act and as industrial energy efficiency improvement overview, based primarily on information from these industries (chemicals and allied products; primary metal industry; petroleum and coal products; stone, clay, and glass products; paper and allied products; food and kindred products; fabricated metal products; transportation equipment; machinery, except electrical; and textile mill products), is presented. Reports from industries, now required to report, are included for rubber and miscellaneous plastics; electrical and electronic equipment; lumber and wood; and tobacco products. Additional data from voluntary submissions are included for American Gas Association; American Hotel and Motel Association; General Telephone and Electronics Corporation; and American Telephone and Telegraph Company. (MCW)

  9. Greater Green River Basin Production Improvement Project

    SciTech Connect (OSTI)

    DeJarnett, B.B.; Lim, F.H.; Calogero, D.

    1997-10-01T23:59:59.000Z

    The Greater Green River Basin (GGRB) of Wyoming has produced abundant oil and gas out of multiple reservoirs for over 60 years, and large quantities of gas remain untapped in tight gas sandstone reservoirs. Even though GGRB production has been established in formations from the Paleozoic to the Tertiary, recent activity has focused on several Cretaceous reservoirs. Two of these formations, the Ahnond and the Frontier Formations, have been classified as tight sands and are prolific producers in the GGRB. The formations typically naturally fractured and have been exploited using conventional well technology. In most cases, hydraulic fracture treatments must be performed when completing these wells to to increase gas production rates to economic levels. The objectives of the GGRB production improvement project were to apply the concept of horizontal and directional drilling to the Second Frontier Formation on the western flank of the Rock Springs Uplift and to compare production improvements by drilling, completing, and testing vertical, horizontal and directionally-drilled wellbores at a common site.

  10. Process system optimization for life cycle improvement

    SciTech Connect (OSTI)

    Marano, J.J.; Rogers, S.

    1999-12-31T23:59:59.000Z

    Life Cycle Assessment (LCA) is an analytic tool for quantifying the environmental impacts of all processes used in converting raw materials into a final product. The LCA consists of three parts. Life cycle inventory quantifies all material and energy use, and environmental emissions for the entire product life cycle, while impact assessment evaluates actual and potential environmental and human health consequences of the activities identified in the inventory phase. Most importantly, life cycle improvement aims at reducing the risk of these consequences occurring to make the product more benign. when the LCA is performed in conjunction with a technoeconomic analysis, the total economic and environmental benefits and shortcomings of a product or process can be quantified. A methodology has been developed incorporating process performance, economics, and life cycle inventory data to synthesize process systems, which meet life cycle impact-improvement targets at least cost. The method relies on a systematic description of the product life cycle and utilizes successive Linear Programming to formulate and optimize the non-linear, constrained problem which results. The practicality and power of this approach have been demonstrated by examining options for the reduction of emissions of the greenhouse gas CO{sub 2} from petroleum-based fuels.

  11. Generic Side-Channel Distinguishers: Improvements and Limitations

    E-Print Network [OSTI]

    to the application of side-channel analysis against emerging cryptographic imple- mentations. First, we describe. On the industrial side, security against such attacks is now required to reach high certification levels be large. Hence, profiled and non-profiled attacks are complementary and shed a different light

  12. Compliance Monitoring of Underwater Blasting for Rock Removal at Warrior Point, Columbia River Channel Improvement Project, 2009/2010

    SciTech Connect (OSTI)

    Carlson, Thomas J.; Johnson, Gary E.; Woodley, Christa M.; Skalski, J. R.; Seaburg, Adam

    2011-05-10T23:59:59.000Z

    The U.S. Army Corps of Engineers, Portland District (USACE) conducted the 20-year Columbia River Channel Improvement Project (CRCIP) to deepen the navigation channel between Portland, Oregon, and the Pacific Ocean to allow transit of fully loaded Panamax ships (100 ft wide, 600 to 700 ft long, and draft 45 to 50 ft). In the vicinity of Warrior Point, between river miles (RM) 87 and 88 near St. Helens, Oregon, the USACE conducted underwater blasting and dredging to remove 300,000 yd3 of a basalt rock formation to reach a depth of 44 ft in the Columbia River navigation channel. The purpose of this report is to document methods and results of the compliance monitoring study for the blasting project at Warrior Point in the Columbia River.

  13. Global Climate Modeling of the Martian water cycle with improved microphysics and radiatively active water ice clouds

    E-Print Network [OSTI]

    Navarro, Thomas; Forget, François; Spiga, Aymeric; Millour, Ehouarn; Montmessin, Franck

    2013-01-01T23:59:59.000Z

    Radiative effects of water ice clouds have noteworthy consequences on the Martian atmosphere, its thermal structure and circulation. Accordingly, the inclusion of such effects in the LMD Mars Global Climate Model (GCM) greatly modifies the simulated Martian water cycle. The intent of this paper is to address the impact of radiatively active clouds on atmospheric water vapor and ice in the GCM and improve its representation. We propose a new enhanced modeling of the water cycle, consisting of detailed cloud microphysics with dynamic condensation nuclei and a better implementation of perennial surface water ice. This physical modeling is based on tunable parameters. This new version of the GCM is compared to the Thermal Emission Spectrometer observations of the water cycle. Satisfying results are reached for both vapor and cloud opacities. However, simulations yield a lack of water vapor in the tropics after Ls=180{\\deg} which is persistent in simulations compared to observations, as a consequence of aphelion c...

  14. Improved mehtods and reagents for pretargeted radioimmunotherapy of cancer

    E-Print Network [OSTI]

    Zajic, Stefan C

    2007-01-01T23:59:59.000Z

    Pretargeted radioimmunotherapy (PRIT) of cancer improves upon conventional radioimmunotherapy (RIT) by decoupling the pharmacokinetics of the targeting agent and the radioisotope. In order to improve upon PRIT, we have ...

  15. A Computational Study of Feeding Rules and Yield Improvement Techniques

    E-Print Network [OSTI]

    Beckermann, Christoph

    A Computational Study of Feeding Rules and Yield Improvement Techniques Christoph Beckermann improvement techniques is presented. The computer simulations were performed using a commercial solidification chills (termed passive methods), and active heating and cooling are presented and compared. The benefits

  16. Goal setting for improvement in product development performance of organizations

    E-Print Network [OSTI]

    Kashyap, Pankaj Kumar

    2013-01-01T23:59:59.000Z

    Companies have been constantly trying for ways and means to improve R&D performance as it is one of the most important competitive advantage tools of an organization. Literature review on R&D performance improvement suggests ...

  17. assistance improves intracorporeal: Topics by E-print Network

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

    10 Provide Assistance to Improve Water Quality in Hood County Final Report Texas A&M University - TxSpace Summary: Service for funding the Providing Assistance to Improve...

  18. Improving Design Methods for Fixed-Foundation Offshore Wind Energy...

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

    Improving Design Methods for Fixed-Foundation Offshore Wind Energy Systems Improving Design Methods for Fixed-Foundation Offshore Wind Energy Systems October 1, 2013 - 3:10pm...

  19. Improving Diesel Engine Sweet-spot Efficiency and Adapting it...

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

    Diesel Engine Sweet-spot Efficiency and Adapting it to Improve Duty-cycle MPG - plus Increasing Propulsion and Reducing Cost Improving Diesel Engine Sweet-spot Efficiency and...

  20. Quality improvement and control based on defect reduction

    E-Print Network [OSTI]

    Dai, Qi, M. Eng. Massachusetts Institute of Technology

    2010-01-01T23:59:59.000Z

    This thesis addresses the quality improvement in a printing process at a food packaging company now experiencing hundreds of printing defects. Methodologies of Define, Measure, Analyze, Improve, and Control (DMAIC), and ...

  1. Fuel Economy Improvements from a Hybrid-Electric/Diesel Powertrain...

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

    Economy Improvements from a Hybrid-ElectricDiesel Powertrain in a Class 4 Parcel Delivery Vehicle Fuel Economy Improvements from a Hybrid-ElectricDiesel Powertrain in a Class 4...

  2. Defining the Problem Known Environment Unknown Environment Improvements Reinforcement Learning

    E-Print Network [OSTI]

    Kjellström, Hedvig

    Defining the Problem Known Environment Unknown Environment Improvements Reinforcement Learning Bel¨oningsbaserad Inl¨arning Defining the Problem Known Environment Unknown Environment Improvements 1 Defining the Problem Framework Role of Reward Simplifying Assumptions Central Concepts 2 Known Environment Bellmans

  3. Page 1 of 1 PSD FY 2014 ESH IMPROVEMENT PLAN

    E-Print Network [OSTI]

    Ohta, Shigemi

    Page 1 of 1 PSD FY 2014 ESH IMPROVEMENT PLAN PREPARED BY ANDREW ACKERMAN This document defines the actions planned for FY 2014 for improving the PSD ESH programs beyond the primary goal of controlling

  4. Irrigation Retrofit Program Steps to Improving sprinkler system efficiency

    E-Print Network [OSTI]

    Jawitz, James W.

    Irrigation Retrofit Program Steps to Improving sprinkler system efficiency Step 1. Replace Program provides rebates for improving urban landscape irrigation systems. Homeowners Associations can receive up to $400 for upgrading their irrigation system. In order to receive reimbursement , sign up

  5. Energy Department Invests Over $10 Million to Improve Grid Reliability...

    Energy Savers [EERE]

    10 Million to Improve Grid Reliability and Resiliency Energy Department Invests Over 10 Million to Improve Grid Reliability and Resiliency June 11, 2014 - 6:20pm Addthis NEWS...

  6. Evaluating txdot's safety improvement index - a prioritization tool 

    E-Print Network [OSTI]

    Singi Reddy, Giridhar Reddy

    2008-10-10T23:59:59.000Z

    In accordance with the federally mandated Highway Safety Improvement Program (HSIP), every state is required to "develop and implement, on a continuous basis, a highway safety improvement program which has the overall ...

  7. Performance Improvements for Nuclear Reaction Network Integration

    E-Print Network [OSTI]

    Longland, Richard; José, Jordi

    2014-01-01T23:59:59.000Z

    Aims: The aim of this work is to compare the performance of three reaction network integration methods used in stellar nucleosynthesis calculations. These are the Gear's backward differentiation method, Wagoner's method (a 2nd-order Runge-Kutta method), and the Bader-Deuflehard semi-implicit multi-step method. Methods: To investigate the efficiency of each of the integration methods considered here, a test suite of temperature and density versus time profiles is used. This suite provides a range of situations ranging from constant temperature and density to the dramatically varying conditions present in white dwarf mergers, novae, and x-ray bursts. Some of these profiles are obtained separately from full hydrodynamic calculations. The integration efficiencies are investigated with respect to input parameters that constrain the desired accuracy and precision. Results: Gear's backward differentiation method is found to improve accuracy, performance, and stability in integrating nuclear reaction networks. For te...

  8. Improvements of the Variable Thermal Resistance

    E-Print Network [OSTI]

    Székely, V; Kollar, E

    2008-01-01T23:59:59.000Z

    A flat mounting unit with electronically variable thermal resistance [1] has been presented in the last year [2]. The design was based on a Peltier cell and the appropriate control electronics and software. The device is devoted especially to the thermal characterization of packages, e.g. in dual cold plate arrangements. Although this design meets the requirements of the static measurement we are intended to improve its parameters as the settling time and dynamic thermal impedance and the range of realized thermal resistance. The new design applies the heat flux sensor developed by our team as well [3], making easier the control of the device. This development allows even the realization of negative thermal resistances.

  9. Improvements of the Variable Thermal Resistance

    E-Print Network [OSTI]

    V. Szekely; S. Torok; E. Kollar

    2008-01-07T23:59:59.000Z

    A flat mounting unit with electronically variable thermal resistance [1] has been presented in the last year [2]. The design was based on a Peltier cell and the appropriate control electronics and software. The device is devoted especially to the thermal characterization of packages, e.g. in dual cold plate arrangements. Although this design meets the requirements of the static measurement we are intended to improve its parameters as the settling time and dynamic thermal impedance and the range of realized thermal resistance. The new design applies the heat flux sensor developed by our team as well [3], making easier the control of the device. This development allows even the realization of negative thermal resistances.

  10. An improved integrally formed radio frequency quadrupole

    DOE Patents [OSTI]

    Abbott, S.R.

    1987-10-05T23:59:59.000Z

    An improved radio frequency quadrupole is provided having an elongate housing with an elongate central axis and top, bottom and two side walls symmetrically disposed about the axis, and vanes formed integrally with the walls, the vanes each having a cross-section at right angles to the central axis which tapers inwardly toward the axis to form electrode tips spaced from each other by predetermined distances. Each of the four walls, and the vanes integral therewith, is a separate structural element having a central lengthwise plane passing through the tip of the vane, the walls having flat mounting surfaces at right angles to and parallel to the control plane, respectively, which are butted together to position the walls and vane tips relative to each other. 4 figs.

  11. Wind turbine generator with improved operating subassemblies

    DOE Patents [OSTI]

    Cheney, Jr., Marvin C. (24 Stonepost Rd., Glastonbury, CT 06033)

    1985-01-01T23:59:59.000Z

    A wind turbine includes a yaw spring return assembly to return the nacelle from a position to which it has been rotated by yawing forces, thus preventing excessive twisting of the power cables and control cables. It also includes negative coning restrainers to limit the bending of the flexible arms of the rotor towards the tower, and stop means on the rotor shaft to orient the blades in a vertical position during periods when the unit is upwind when the wind commences. A pendulum pitch control mechanism is improved by orienting the pivot axis for the pendulum arm at an angle to the longitudinal axis of its support arm, and excessive creep is of the synthetic resin flexible beam support for the blades is prevented by a restraining cable which limits the extent of pivoting of the pendulum during normal operation but which will permit further pivoting under abnormal conditions to cause the rotor to stall.

  12. Improvements in manufacture of iridium alloy materials

    SciTech Connect (OSTI)

    Ohriner, E.K. (Metals and Ceramics Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6083 (United States))

    1993-01-15T23:59:59.000Z

    Iridium alloys are used as fuel-cladding material in radioisotope thermoelectric generators (RTGs). Hardware produced at the Oak Ridge National Laboratory (ORNL) has been used in Voyager 1 and 2, Galileo, and Ulysses spacecrafts. This hardware was fabricated from small, 500-g drop-cast ingots. Porosity in these ingots and the resulting defects in the rolled sheets caused rejection of about 30% of the product. An improved manufacturing process was developed with the goal of substantially reducing the level of defects in the rolled sheets. The ingot size is increased to 10 kg and is produced by vacuum arc remelting. In addition, the ingot is hot extruded prior to rolling. Since implementation of the process in 1989, the average rate of rejection of the product has been reduced to below 10%.

  13. Power converter having improved fluid cooling

    DOE Patents [OSTI]

    Meyer, Andreas A.; Radosevich, Lawrence D.; Beihoff, Bruce C.; Kehl, Dennis L.; Kannenberg, Daniel G.

    2007-03-06T23:59:59.000Z

    A thermal support may receive one or more power electronic circuits. The support may aid in removing heat from the circuits through fluid circulating through the support, which may be controlled in a closed-loop manner. Interfacing between circuits, circuit mounting structure, and the support provide for greatly enhanced cooling. The support may form a shield from both external EMI/RFI and from interference generated by operation of the power electronic circuits. Features may be provided to permit and enhance connection of the circuitry to external circuitry, such as improved terminal configurations. Modular units may be assembled that may be coupled to electronic circuitry via plug-in arrangements or through interface with a backplane or similar mounting and interconnecting structures.

  14. Vehicle drive module having improved cooling configuration

    DOE Patents [OSTI]

    Radosevich, Lawrence D.; Meyer, Andreas A.; Kannenberg, Daniel G.; Kaishian, Steven C.; Beihoff, Bruce C.

    2007-02-13T23:59:59.000Z

    An electric vehicle drive includes a thermal support may receive one or more power electronic circuits. The support may aid in removing heat from the circuits through fluid circulating through the support. Power electronic circuits are thermally matched, such as between component layers and between the circuits and the support. The support may form a shield from both external EMI/RFI and from interference generated by operation of the power electronic circuits. Features may be provided to permit and enhance connection of the circuitry to external circuitry, such as improved terminal configurations. Modular units may be assembled that may be coupled to electronic circuitry via plug-in arrangements or through interface with a backplane or similar mounting and interconnecting structures.

  15. Power converter having improved EMI shielding

    DOE Patents [OSTI]

    Beihoff, Bruce C.; Kehl, Dennis L.; Gettelfinger, Lee A.; Kaishian, Steven C.; Phillips, Mark G.; Radosevich, Lawrence D.

    2006-06-13T23:59:59.000Z

    EMI shielding is provided for power electronics circuits and the like via a direct-mount reference plane support and shielding structure. The thermal support may receive one or more power electronic circuits. The support may aid in removing heat from the circuits through fluid circulating through the support. The support forms a shield from both external EMI/RFI and from interference generated by operation of the power electronic circuits. Features may be provided to permit and enhance connection of the circuitry to external circuitry, such as improved terminal configurations. Modular units may be assembled that may be coupled to electronic circuitry via plug-in arrangements or through interface with a backplane or similar mounting and interconnecting structures.

  16. Vehicle drive module having improved EMI shielding

    DOE Patents [OSTI]

    Beihoff, Bruce C.; Kehl, Dennis L.; Gettelfinger, Lee A.; Kaishian, Steven C.; Phillips, Mark G.; Radosevich, Lawrence D.

    2006-11-28T23:59:59.000Z

    EMI shielding in an electric vehicle drive is provided for power electronics circuits and the like via a direct-mount reference plane support and shielding structure. The thermal support may receive one or more power electronic circuits. The support may aid in removing heat from the circuits through fluid circulating through the support. The support forms a shield from both external EMI/RFI and from interference generated by operation of the power electronic circuits. Features may be provided to permit and enhance connection of the circuitry to external circuitry, such as improved terminal configurations. Modular units may be assembled that may be coupled to electronic circuitry via plug-in arrangements or through interface with a backplane or similar mounting and interconnecting structures.

  17. Lithium ion battery with improved safety

    DOE Patents [OSTI]

    Chen, Chun-hua; Hyung, Yoo Eup; Vissers, Donald R.; Amine, Khalil

    2006-04-11T23:59:59.000Z

    A lithium battery with improved safety that utilizes one or more additives in the battery electrolyte solution wherein a lithium salt is dissolved in an organic solvent, which may contain propylene, carbonate. For example, a blend of 2 wt % triphenyl phosphate (TPP), 1 wt % diphenyl monobutyl phosphate (DMP) and 2 wt % vinyl ethylene carbonate additives has been found to significantly enhance the safety and performance of Li-ion batteries using a LiPF6 salt in EC/DEC electrolyte solvent. The invention relates to both the use of individual additives and to blends of additives such as that shown in the above example at concentrations of 1 to 4-wt % in the lithium battery electrolyte. This invention relates to additives that suppress gas evolution in the cell, passivate graphite electrode and protect it from exfoliating in the presence of propylene carbonate solvents in the electrolyte, and retard flames in the lithium batteries.

  18. Improved Bounds on Universal Extra Dimensions

    E-Print Network [OSTI]

    Thomas Flacke

    2006-05-13T23:59:59.000Z

    We report on recent constraints on models with a flat ``universal'' extra dimension in which all Standard Model fields propagate in the bulk. A significantly improved constraint on the compactification scale is obtained from the extended set of electroweak precision observables accurately measured at LEP1 and LEP2. We find a lower bound of 1/R > 700 (800) GeV at the 99% (95%) confidence level. Comparison of this constraint with the relic density of Kaluza-Klein dark matter for the Minimal UED model points towards the necessity of including non-minimal boundary terms which motivates studying alternative Kaluza-Klein dark matter candidates. Results for the one-loop induced magnetic dipole moment for Kaluza-Klein neutrino dark matter are presented. This talk is based on Phys.Rev.D73:095002,2006 and hep-ph/0601161.

  19. Ceramics containing dispersants for improved fracture toughness

    DOE Patents [OSTI]

    Nevitt, Michael V. (Wheaton, IL); Aldred, Anthony T. (Wheaton, IL); Chan, Sai-Kit (Darien, IL)

    1987-01-01T23:59:59.000Z

    The invention is a ceramic composition containing a new class of dispersant for hindering crack propagation by means of one or more energy-dissipative mechanisms. The composition is composed of a ceramic matrix with dispersed particles of a transformation-prone rare-earth niobate, tantalate or mixtures of these with each other and/or with a rare-earth vanadate. The dispersants, having a generic composition tRMO.sub.4, where R is a rare-earth element, B is Nb or Ta and O is oxygen, are mixed in powder form with a powder of the matrix ceramic and sintered to produce a ceramic form or body. The crack-hindering mechanisms operates to provide improved performance over a wide range of temperature and operating conditions.

  20. Improved operation of the nonambipolar electron source

    SciTech Connect (OSTI)

    Longmier, Ben; Hershkowitz, Noah [University of Wisconsin-Madison, Madison, Wisconsin 53706 (United States)

    2008-09-15T23:59:59.000Z

    Significant improvements have been made to the nonambipolar electron source (NES), a radio frequency (rf) plasma-based electron source that does not rely on electron emission at a cathode surface [B. Longmier, S. Baalrud, and N. Hershkowitz, Rev. Sci. Instrum. 77, 113504 (2006)]. A prototype NES has produced 30 A of continuous electron current, using 2 SCCM (SCCM denotes cubic centimeter per minute at STP) Xe, 1300 W rf power at 13.56 MHz, yielding a 180 times gas utilization factor. A helicon mode transition has also been identified during NES operation with an argon propellant, using 15 SCCM Ar, 1000 W rf, and 100 G magnetic field. This NES technology has the ability to replace hollow cathode electron sources and to enable high power electric propulsion missions, eliminating one of the lifetime restrictions that many ion thrusters have previously been faced with.

  1. Molten carbonate fuel cell technology improvement

    SciTech Connect (OSTI)

    Not Available

    1991-06-01T23:59:59.000Z

    This report summarizes the work performed under Department of Energy Contract DEAC21-87MC23270, Molten Carbonate Fuel Cell Technology Improvement.'' This work was conducted over a three year period and consisted of three major efforts. The first major effort was the power plant system study which reviewed the competitive requirements for a coal gasifier/molten carbonate fuel cell power plant, produced a conceptual design of a CG/MCFC, and defined the technology development requirements. This effort is discussed in Section 1 of the report. The second major effort involved the design and development of a new MCFC cell configuration which reduced the material content of the cell to a level competitive with competing power plants, simplified the cell configuration to make the components more manufacturable and adaptable to continuous low cost processing techniques, and introduced new-low-pressure drop flow fields for both reactant gases. The new flow fields permitted the incorporation of recirculation systems in both reactant gas systems, permitting simplified cooling techniques and the ability to operate on both natural gas and a wide variety of gasifier fuels. This cell technology improvement is discussed in Section 2. The third major effort involved the scaleup of the new cell configuration to the full-area, 8-sq-ft size and resulted in components used for a 25-kW, 20-cell stack verification test. The verification test was completed with a run of 2200 hours, exceeding the goal of 2000 hours and verifying the new cell design. TWs test, in turn, provided the confidence to proceed to a 100-kW demonstration which is the goal of the subsequent DOE program. The scaleup and stack verification tests are discussed in Sections 3, 4, 5, and 6 of this report.

  2. Multi component Nanoparticle Based Lubricant Additive to Improve...

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

    More Documents & Publications Multi-component Nanoparticle Based Lubricant Additive to Improve Efficiency and Durability in Engines ITP Nanomanufacturing:...

  3. Tax Credits for Home Energy Improvements (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-08-01T23:59:59.000Z

    This fact sheet is an overview of the Department of Energy's tax credits for home energy improvements.

  4. allergic rhinitis improves: Topics by E-print Network

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

    Bulletin No. 774 Genetic Improvement of Private Woodland Ecosystems in the Pacific Northwest Ronald... 3 What does genetic...

  5. On the convergence of the expected improvement algorithm

    E-Print Network [OSTI]

    Vazquez, Emmanuel

    2007-01-01T23:59:59.000Z

    This note deals with the convergence of the Expected Improvement (EI) algorithm. Several interesting open problems raised.

  6. Improving the Contribution of Economic Models in Evaluating Industrial Energy Efficiency Improvements 

    E-Print Network [OSTI]

    Laitner, J. A.

    2007-01-01T23:59:59.000Z

    Traditional representation of improved end-use efficiency in the manufacturing sector has tended to assume “a net cost” perspective. In other words, the assumption for many models is that any change within the energy end-use patterns must imply a...

  7. FC Scotland Timber Development Programme: Improving Timber Quality

    E-Print Network [OSTI]

    FC Scotland Timber Development Programme: Improving Timber Quality Elspeth Macdonald Improving Conifer Timber Quality Steering Group 27th November 2008 #12;Timber Quality Steering Group ­ 27/11/082 FCS efficiency. D. Encourage improvements to the quality of the growing stock. #12;Activity areas: 1. Identify

  8. Dynamically Quantifying and Improving the Reliability of Distributed Storage Systems

    E-Print Network [OSTI]

    Bianchini, Ricardo

    Dynamically Quantifying and Improving the Reliability of Distributed Storage Systems Rekha Bachwani-scale storage systems can be significantly improved by using bet- ter reliability metrics and more efficient on a distributed storage system based on erasure codes. We find that MinI improves relia- bility significantly

  9. BEAN IMPROVEMENT COOPERATIVE 2014 BIC Invoice (US $) and Membership Information

    E-Print Network [OSTI]

    BEAN IMPROVEMENT COOPERATIVE 2014 BIC Invoice (US $) and Membership Information 2014 Dues (Volume ISSN # = 0084-7747] INVOICE 2014 BEAN IMPROVEMENT COOPERATIVE MEMBERSHIP If paying by check, please make payable to the "BEAN IMPROVEMENT COOPERATIVE", and mail to: Dr. Phillip N. Miklas, USDA-ARS, 24106

  10. Business Process Management Systems enabling continuous improvement in industrial services

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Business Process Management Systems ­ enabling continuous improvement in industrial services Heikki that modern business process management systems (BPMS) provide in improving industrial service processes. A case study identifies improvement opportunities in the order-to- cash process in two service lines

  11. Health and productivity benefits of improved indoor air quality

    SciTech Connect (OSTI)

    Dorgan, C.B. [Dorgan Associates, Inc., Madison, WI (United States); Dorgan, C.E.; Kanarek, M.S. [Univ. of Wisconsin, Madison, WI (United States); Willman, A.J. [Quantum Technology, Inc., Springfield, VA (United States)

    1998-10-01T23:59:59.000Z

    This paper is a summary of two studies completed for a national contractor`s association on the health costs and productivity benefits of improved IAQ. The original study documented the general health costs and productivity benefits of improved IAQ. The second study expanded the scope to include medical cost reductions for specific illnesses from improved IAQ. General information on the objectives, assumptions, definitions, and results of the studies are presented, followed by detailed information on research methodology, building inventory and wellness categories, health and medical effects of poor IAQ, health cost benefits, productivity benefits, recommended improvements, and conclusions and future improvements.

  12. SURFACTANT - POLYMER INTERACTION FOR IMPROVED OIL RECOVERY

    SciTech Connect (OSTI)

    Unknown

    1997-09-01T23:59:59.000Z

    The goal of this research is to use the interaction between a surfactant and a polymer for efficient displacement of tertiary oil by improving slug integrity, adsorption and mobility control. Surfactant--polymer flooding has been shown to be highly effective in laboratory-scale linear floods. The focus of this proposal is to design an inexpensive surfactant-polymer mixture that can efficiently recover tertiary oil by avoiding surfactant slug degradation, high adsorption and viscous/heterogeneity fingering. This report contains data concerning selection of appropriate fluids for use in laboratory experiments and numerical simulations. A mixture comprising a ''pseudo oil'' with appropriate surfactant and polymer is proposed. The properties of this system has been determined. The experimental set-up has been conditioned for use and experiments involving the aforementioned system have already started. A commercial simulator has been acquired for use in reproducing the experiments. A graduate student has been trained in its use. Linear stability analysis equations have been developed and phase maps for one and two-dimensions are currently computed.

  13. Improvements in geothermometry. Final technical report. Rev

    SciTech Connect (OSTI)

    Potter, J.; Dibble, W.; Parks, G.; Nur, A.

    1982-08-01T23:59:59.000Z

    Alkali and alkaline earth geothermometers are useful for estimating geothermal reservoir temperatures, though a general theoretical basis has yet to be established and experimental calibration needs improvement. Equilibrium cation exchange between feldspars provided the original basis for the Na-K and Na-K-Ca geothermometers (Fournier and Truesdell, 1973), but theoretical, field and experimental evidence prove that neither equilibrium nor feldspars are necessary. Here, evidence is summarized in support of these observations, concluding that these geothermometers can be expected to have a surprisingly wide range of applicability, but that the reasons behind such broad applicability are not yet understood. Early experimental work proved that water-rock interactions are slow at low temperatures, so experimental calibration at temperatures below 150/sup 0/ is impractical. Theoretical methods and field data were used instead for all work at low temperatures. Experimental methods were emphasized for temperatures above 150/sup 0/C, and the simplest possible solid and solution compositions were used to permit investigation of one process or question at a time. Unexpected results in experimental work prevented complete integration of the various portions of the investigation.

  14. Improving Memory Error Handling Using Linux

    SciTech Connect (OSTI)

    Carlton, Michael Andrew [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Blanchard, Sean P. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Debardeleben, Nathan A. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2014-07-25T23:59:59.000Z

    As supercomputers continue to get faster and more powerful in the future, they will also have more nodes. If nothing is done, then the amount of memory in supercomputer clusters will soon grow large enough that memory failures will be unmanageable to deal with by manually replacing memory DIMMs. "Improving Memory Error Handling Using Linux" is a process oriented method to solve this problem by using the Linux kernel to disable (offline) faulty memory pages containing bad addresses, preventing them from being used again by a process. The process of offlining memory pages simplifies error handling and results in reducing both hardware and manpower costs required to run Los Alamos National Laboratory (LANL) clusters. This process will be necessary for the future of supercomputing to allow the development of exascale computers. It will not be feasible without memory error handling to manually replace the number of DIMMs that will fail daily on a machine consisting of 32-128 petabytes of memory. Testing reveals the process of offlining memory pages works and is relatively simple to use. As more and more testing is conducted, the entire process will be automated within the high-performance computing (HPC) monitoring software, Zenoss, at LANL.

  15. An improved KSR 600 EB-gun

    SciTech Connect (OSTI)

    Blum, M.; Choudhury, A.; Hugo, F.; Knell, F.; Scholz, H. [ALD Vacuum Technologies GmbH, Erlensee (Germany)

    1994-12-31T23:59:59.000Z

    For high power applications in Electron Beam Cold Hearth Remelting particularly for production purposes ALD Vacuum Technologies GmbH has now developed an improved KSR 600 EB-gun. The gun is equipped with an oil-insulated gun hood and beam generator with watercooled heat exchanger. For melting at high pressure levels a complete newly designed pressure stage and accelerating voltages between 45 kV and 50 kV can be used. To realize a defined energy input with a fine beam spot at any operation angle a new high frequency deflection unit is available. This is also the way to minimize undesired evaporation losses of alloying constituents with high vapor pressure. The high frequency deflection unit runs with low eddy current losses, inspite of the fact that the vacuum side of the unit is completely ceramic-free - accordingly no possibility to incorporate ceramic particles Into the melt. In order to achieve highest capability a now control concept based on commercial hardware and special designed software is under realization. The paper describes the gun with all informations about the controlling concept.

  16. Ion source with improved primary arc collimation

    DOE Patents [OSTI]

    Dagenhart, William K. (Oak Ridge, TN)

    1985-01-01T23:59:59.000Z

    An improved negative ion source is provided in which a self-biasing, molybdenum collimator is used to define the primary electron stream arc discharge from a filament operated at a negative potential. The collimator is located between the anode and the filament. It is electrically connected to the anode by means of an appropriate size resistor such that the collimator is biased at essentially the filament voltage during operation. Initially, the full arc voltage appears across the filament to collimator until the arc discharge strikes. Then the collimator biases itself to essentially filament potential due to current flow through the resistor thus defining the primary electron stream without intercepting any appreciable arc power. The collimator aperture is slightly smaller than the anode aperture to shield the anode from the arc power, thereby preventing the exposure of the anode to the full arc power which, in the past, has caused overheating and erosion of the anode collimator during extended time pulsed-beam operation of the source. With the self-biasing collimator of this invention, the ion source may be operated from short pulse periods to steady-state without destroying the anode.

  17. Optical parametric osicllators with improved beam quality

    DOE Patents [OSTI]

    Smith, Arlee V.; Alford, William J.

    2003-11-11T23:59:59.000Z

    An optical parametric oscillator (OPO) having an optical pump, which generates a pump beam at a pump frequency greater than a desired signal frequency, a nonlinear optical medium oriented so that a signal wave at the desired signal frequency and a corresponding idler wave are produced when the pump beam (wave) propagates through the nonlinear optical medium, resulting in beam walk off of the signal and idler waves, and an optical cavity which directs the signal wave to repeatedly pass through the nonlinear optical medium, said optical cavity comprising an equivalently even number of non-planar mirrors that produce image rotation on each pass through the nonlinear optical medium. Utilizing beam walk off where the signal wave and said idler wave have nonparallel Poynting vectors in the nonlinear medium and image rotation, a correlation zone of distance equal to approximately .rho.L.sub.crystal is created which, through multiple passes through the nonlinear medium, improves the beam quality of the OPO output.

  18. Improved control strategy for parallel logic programming

    SciTech Connect (OSTI)

    Chung, I.J.

    1989-01-01T23:59:59.000Z

    The objective of this dissertation is to formulate an improved control strategy for parallel logic programming and to verify that the complexity of the parallel logic programs with this control strategy would be much less than the complexity of the other logic programs. The proposed control strategy is a combination of committed choice nondeterminism, and the data-flow model. The commit operator would be used for committed choice nondeterminism, and the primitives based on the dataflow model would be used to control AND-parallelism and OR-parallelism. With this proposed control strategy, the maximum useful parallelism can be explained with optimal granularity by controlling useless parallelism and limiting the branching factor. For justification of the proposed control strategy, it is suggested that the complexity of the computations of alternating Turing machines, which include a generalization of nondeterminism, can be used for the abstract cost function of logic programs. As justification of the proposed idea, the author bases a comparison of parallel logic programs on a model utilizing alternating Turing machines. The author shows that a natural reduction of the alternating Turing machine for the proposed control strategy yields a deterministic Turing machine whose complexity is linearly- related to that of the alternating Turing machine. However such a reduction for the conventional committed choice nondeterminism has complexity that is quadratically related to that of the alternating Turing machine.

  19. Ion source with improved primary arc collimation

    DOE Patents [OSTI]

    Dagenhart, W.K.

    1983-12-16T23:59:59.000Z

    An improved negative ion source is provided in which a self-biasing, molybdenum collimator is used to define the primary electron stream arc discharge from a filament operated at a negative potential. The collimator is located between the anode and the filament. It is electrically connected to the anode by means of an appropriate size resistor such that the collimator is biased at essentially the filament voltage during operation. Initially, the full arc voltage appears across the filament to collimator until the arc discharge strikes. Then the collimator biases itself to essentially filament potential due to current flow through the resistor thus defining the primary electron stream without intercepting any appreciable arc power. The collimator aperture is slightly smaller than the anode aperture to shield the anode from the arc power which, in the past, has caused overheating and erosion of the anode collimator during extended time pulsed-beam operation of the source. With the self-biasing collimator of this invention, the ion source may be operated from short pulse periods to steady-state without destroying the anode.

  20. Improvement of four anode rods ion source

    SciTech Connect (OSTI)

    Abdel Salam, F. W.; El-Khabeary, H.; Abdel Reheem, A. M. [Accelerators and Ion Sources Department, Nuclear Research Center, Atomic Energy Authority, P. No. 13759 (Egypt); Ahmed, M. M. [Physics Department, Faculty of Science, Helwan University, Cairo (Egypt)

    2011-03-15T23:59:59.000Z

    In this work, an improved form of a saddle field ion source has been designed and constructed. It consists of four anode rods made from copper and two copper cathode discs. The two cathode discs are placed symmetrically on both sides of the four anode rods. The electrical discharge and output ion beam characteristics were measured at different pressures using argon gas. The optimum distance between each two anode rods was determined. Also the optimum distance between the four anode rods and any cathode disc was obtained. It was found that the optimum distance between each two anode rods equal to 6 mm, while the optimum distance between the four anode rods and any cathode disc equal to 16 mm, where a stable discharge current and maximum output ion beam current can be obtained. The effect of negative extraction voltage applied to both the extractor electrode and Faraday cup on the output ion beam current was studied. The sputter yield of copper and aluminum targets using argon ions of different energies was determined.

  1. Improve syngas production using autothermal reforming

    SciTech Connect (OSTI)

    Christensen, T.S.; Primdahl, I.I. (Haldor Topsoe, Copenhagen (Denmark))

    1994-03-01T23:59:59.000Z

    Synthesis gas or syngas, i.e., mixtures of CO and H[sub 2], is a major route from hydrocarbons to many important bulk chemicals ranging from acetic acid to ammonia. Syngas conversion uses hydrocarbon feedstocks, steam, O[sub 2] and CO[sub 2], either separately or in combinations. Autothermal reforming (ATR) is a low-investment process using a simple reactor design. The process is soot-free due to burner design and fixed-bed catalyst. Developed in the late '50s, ATR's main application was for ammonia and methanol syntheses. In ammonia plants, hydrogen production was maximized by operating at high H[sub 2]O/C ratios ranging from 2.5 to 3.5 mole/mole. In methanol units, CO[sub 2] recycle adjusted the syngas composition. ATR is also used to co-produce CO and H[sub 2] as separate streams at H[sub 2]O/C ratios of 1.4 to 2.0 mole/mole. recent developments and optimizations allow cost-effective operation at very low H[sub 2]O/C feed ratios to produce CO-rich syngas. The paper describes the process, including feedstocks and reactor design, the chemical reactions, development and improvements to the process, test results, soot formation, burner design, burner testing, applications, thermodynamic calculations, industrial application, noncatalytic and catalytic partial oxidation, and future uses.

  2. Improved focusing-and-deflection columns

    SciTech Connect (OSTI)

    Mui, P.H.; Szilagyi, M. [Department of Electrical and Computer Engineering, University of Arizona, Tucson, Arizona 85721 (United States)] [Department of Electrical and Computer Engineering, University of Arizona, Tucson, Arizona 85721 (United States)

    1995-07-01T23:59:59.000Z

    Our earlier design procedures for constructing quadrupole columns are further expanded to include octupole corrector units and ``octupole`` deflectors with no third-order harmonics. The additional complications are finer partitioning of the plates and increased number of voltage controllers. Two sample designs, one having only the additional octupole deflectors and one having both the deflectors and the correctors, are presented and compared to our previous quadrupole system. The additional octupole components are shown to be capable of increasing the current density from 30% to more than 300% for a four-plate system, designed to focus and scan the electron beam over a circular area of 0.25 mm radius. The electron beam is assumed to have an initial divergence of {plus_minus}2.3 mrad, an initial energy of 6 kV, a total energy spread of 1 eV, and a final acceleration of 30 keV. These systems are then slightly reoptimized for a superficial comparison with the commercially available column by Micrion Corporation. The numerical results indicate a potential for substantial improvements, demonstrating the power of this design procedure. Finally, a discussion is presented on how the individual components can interact with each other to reduce the various aberrations. {copyright} {ital 1995} {ital American} {ital Vacuum} {ital Society}

  3. Cooking utensil with improved heat retention

    DOE Patents [OSTI]

    Potter, T.F.; Benson, D.K.; Burch, S.D.

    1997-07-01T23:59:59.000Z

    A cooking utensil with improved heat retention includes an inner pot received within an outer pot and separated in a closely spaced-apart relationship to form a volume or chamber there between. The chamber is evacuated and sealed with foil leaves at the upper edges of the inner and outer pot. The vacuum created between the inner and outer pot, along with the minimum of thermal contact between the inner and outer pot, and the reduced radiative heat transfer due to low emissivity coatings on the inner and outer pot, provide for a highly insulated cooking utensil. Any combination of a plurality of mechanisms for selectively disabling and re-enabling the insulating properties of the pot are provided within the chamber. These mechanisms may include: a hydrogen gas producing and reabsorbing device such as a metal hydride, a plurality of metal contacts which can be adjusted to bridge the gap between the inner and outer pot, and a plurality of bimetallic switches which can selectively bridge the gap between the inner and outer pot. In addition, phase change materials with superior heat retention characteristics may be provided within the cooking utensil. Further, automatic and programmable control of the cooking utensil can be provided through a microprocessor and associated hardware for controlling the vacuum disable/enable mechanisms to automatically cook and save food. 26 figs.

  4. Cooking utensil with improved heat retention

    DOE Patents [OSTI]

    Potter, Thomas F. (Denver, CO); Benson, David K. (Golden, CO); Burch, Steven D. (Golden, CO)

    1997-01-01T23:59:59.000Z

    A cooking utensil with improved heat retention includes an inner pot received within an outer pot and separated in a closely spaced-apart relationship to form a volume or chamber therebetween. The chamber is evacuated and sealed with foil leaves at the upper edges of the inner and outer pot. The vacuum created between the inner and outer pot, along with the minimum of thermal contact between the inner and outer pot, and the reduced radiative heat transfer due to low emissivity coatings on the inner and outer pot, provide for a highly insulated cooking utensil. Any combination of a plurality of mechanisms for selectively disabling and re-enabling the insulating properties of the pot are provided within the chamber. These mechanisms may include: a hydrogen gas producing and reabsorbing device such as a metal hydride, a plurality of metal contacts which can be adjusted to bridge the gap between the inner and outer pot, and a plurality of bimetallic switches which can selectively bridge the gap between the inner and outer pot. In addition, phase change materials with superior heat retention characteristics may be provided within the cooking utensil. Further, automatic and programmable control of the cooking utensil can be provided through a microprocessor and associated hardware for controlling the vacuum disable/enable mechanisms to automatically cook and save food.

  5. Multiple horizontal drainholes can improve production

    SciTech Connect (OSTI)

    Graves, K.S. (Baker Hughes Inteq, Houston, TX (United States))

    1994-02-14T23:59:59.000Z

    Drilling several horizontal sections from a single vertical well bore has improved the drilling and production economics on many wells, especially in South Texas, where multilateral wells are becoming more common. A multilateral well consists of two or more horizontal drainholes drilled from one primary vertical well bore, either as a new well or as a re-entry. There are a number of advantages to drilling multilateral drainholes. Multilateral drainholes reduce drilling costs because only one main vertical bore is drilled (reduces drilling time and wellhead and casing costs). Of primary importance is the increased well production compared to similar single horizontal wells and vertical wells. The use of a single vertical well bore minimizes location, access road, and cleanup costs. Fewer surface production facilities may be necessary, and offshore, increasing the drainage area for a fixed number of well slots gives greater platform flexibility and allows more extensive field development. One disadvantage, however, is the potential complications during well control because two or more well bores are open. Also, the ability to service a particular well bore is more complex. To prevent future well bore service problems, each drainhole must be designed for later re-entry.

  6. Research opportunities to improve DSM impact estimates

    SciTech Connect (OSTI)

    Misuriello, H.; Hopkins, M.E.F. [Fleming Group, Washington, DC (United States)

    1992-03-01T23:59:59.000Z

    This report was commissioned by the California Institute for Energy Efficiency (CIEE) as part of its research mission to advance the energy efficiency and productivity of all end-use sectors in California. Our specific goal in this effort has been to identify viable research and development (R&D) opportunities that can improve capabilities to determine the energy-use and demand reductions achieved through demand-side management (DSM) programs and measures. We surveyed numerous practitioners in California and elsewhere to identify the major obstacles to effective impact evaluation, drawing on their collective experience. As a separate effort, we have also profiled the status of regulatory practices in leading states with respect to DSM impact evaluation. We have synthesized this information, adding our own perspective and experience to those of our survey-respondent colleagues, to characterize today`s state of the art in impact-evaluation practices. This scoping study takes a comprehensive look at the problems and issues involved in DSM impact estimates at the customer-facility or site level. The major portion of our study investigates three broad topic areas of interest to CIEE: Data analysis issues, field-monitoring issues, issues in evaluating DSM measures. Across these three topic areas, we have identified 22 potential R&D opportunities, to which we have assigned priority levels. These R&D opportunities are listed by topic area and priority.

  7. Improvement of Sweep Efficiency in Gasflooding

    SciTech Connect (OSTI)

    Kishore Mohanty

    2008-12-31T23:59:59.000Z

    Miscible and near-miscible gasflooding has proven to be one of the few cost effective enhance oil recovery techniques in the past twenty years. As the scope of gas flooding is being expanded to medium viscosity oils in shallow sands in Alaska and shallower reservoirs in the lower 48, there are questions about sweep efficiency in near-miscible regions. The goal of this research is to evaluate sweep efficiency of various gas flooding processes in a laboratory model and develop numerical tools to estimate their effectiveness in the field-scale. Quarter 5-spot experiments were conducted at reservoir pressure to evaluate the sweep efficiency of gas, WAG and foam floods. The quarter 5-spot model was used to model vapor extraction (VAPEX) experiments at the lab scale. A streamline-based compositional simulator and a commercial simulator (GEM) were used to model laboratory scale miscible floods and field-scale pattern floods. An equimolar mixture of NGL and lean gas is multicontact miscible with oil A at 1500 psi; ethane is a multicontact miscible solvent for oil B at pressures higher than 607 psi. WAG improves the microscopic displacement efficiency over continuous gas injection followed by waterflood in corefloods. WAG improves the oil recovery in the quarter 5-spot over the continuous gas injection followed by waterflood. As the WAG ratio increases from 1:2 to 2:1, the sweep efficiency in the 5-spot increases, from 39.6% to 65.9%. A decrease in the solvent amount lowers the oil recovery in WAG floods, but significantly higher amount of oil can be recovered with just 0.1 PV solvent injection over just waterflood. Use of a horizontal production well lowers the oil recovery over the vertical production well during WAG injection phase in this homogeneous 5-spot model. Estimated sweep efficiency decreases from 61.5% to 50.5%. In foam floods, as surfactant to gas slug size ratio increases from 1:10 to 1:1, oil recovery increases. In continuous gasflood VAPEX processes, as the distance between the injection well and production well decreases, the oil recovery and rate decreases in continuous gasflood VAPEX processes. Gravity override is observed for gas injection simulations in vertical (X-Z) cross-sections and 3-D quarter five spot patterns. Breakthrough recovery efficiency increases with the viscous-to-gravity ratio in the range of 1-100. The speed up for the streamline calculations alone is almost linear with the number of processors. The overall speed up factor is sub-linear because of the overhead time spent on the finite-difference calculation, inter-processor communication, and non-uniform processor load. Field-scale pattern simulations showed that recovery from gas and WAG floods depends on the vertical position of high permeability regions and k{sub v}/k{sub h} ratio. As the location of high permeability region moves down and k{sub v}/k{sub h} ratio decreases, oil recovery increases. There is less gravity override. The recovery from the field model is lower than that from the lab 5-spot model, but the effect of WAG ratio is similar.

  8. Improving Access to Foundational Energy Performance Data

    SciTech Connect (OSTI)

    Studer, D.; Livingood, W.; Torcellini, P.

    2014-08-01T23:59:59.000Z

    Access to foundational energy performance data is key to improving the efficiency of the built environment. However, stakeholders often lack access to what they perceive as credible energy performance data. Therefore, even if a stakeholder determines that a product would increase efficiency, they often have difficulty convincing their management to move forward. Even when credible data do exist, such data are not always sufficient to support detailed energy performance analyses, or the development of robust business cases. One reason for this is that the data parameters that are provided are generally based on the respective industry norms. Thus, for mature industries with extensive testing standards, the data made available are often quite detailed. But for emerging technologies, or for industries with less well-developed testing standards, available data are generally insufficient to support robust analysis. However, even for mature technologies, there is no guarantee that the data being supplied are the same data needed to accurately evaluate a product?s energy performance. To address these challenges, the U.S. Department of Energy funded development of a free, publically accessible Web-based portal, the Technology Performance Exchange(TM), to facilitate the transparent identification, storage, and sharing of foundational energy performance data. The Technology Performance Exchange identifies the intrinsic, technology-specific parameters necessary for a user to perform a credible energy analysis and includes a robust database to store these data. End users can leverage stored data to evaluate the site-specific performance of various technologies, support financial analyses with greater confidence, and make better informed procurement decisions.

  9. Gasification Product Improvement Facility (GPIF). Final report

    SciTech Connect (OSTI)

    NONE

    1995-09-01T23:59:59.000Z

    The gasifier selected for development under this contract is an innovative and patented hybrid technology which combines the best features of both fixed-bed and fluidized-bed types. PyGas{trademark}, meaning Pyrolysis Gasification, is well suited for integration into advanced power cycles such as IGCC. It is also well matched to hot gas clean-up technologies currently in development. Unlike other gasification technologies, PyGas can be designed into both large and small scale systems. It is expected that partial repowering with PyGas could be done at a cost of electricity of only 2.78 cents/kWh, more economical than natural gas repowering. It is extremely unfortunate that Government funding for such a noble cause is becoming reduced to the point where current contracts must be canceled. The Gasification Product Improvement Facility (GPIF) project was initiated to provide a test facility to support early commercialization of advanced fixed-bed coal gasification technology at a cost approaching $1,000 per kilowatt for electric power generation applications. The project was to include an innovative, advanced, air-blown, pressurized, fixed-bed, dry-bottom gasifier and a follow-on hot metal oxide gas desulfurization sub-system. To help defray the cost of testing materials, the facility was to be located at a nearby utility coal fired generating site. The patented PyGas{trademark} technology was selected via a competitive bidding process as the candidate which best fit overall DOE objectives. The paper describes the accomplishments to date.

  10. Temporal Land Cover Analysis for Net Ecosystem Improvement

    SciTech Connect (OSTI)

    Ke, Yinghai; Coleman, Andre M.; Diefenderfer, Heida L.

    2013-04-09T23:59:59.000Z

    We delineated 8 watersheds contributing to previously defined river reaches within the 1,468-km2 historical floodplain of the tidally influenced lower Columbia River and estuary. We assessed land-cover change at the watershed, reach, and restoration site scales by reclassifying remote-sensing data from the National Oceanic and Atmospheric Administration Coastal Change Analysis Program’s land cover/land change product into forest, wetland, and urban categories. The analysis showed a 198.3 km2 loss of forest cover during the first 6 years of the Columbia Estuary Ecosystem Restoration Program, 2001–2006. Total measured urbanization in the contributing watersheds of the estuary during the full 1996-2006 change analysis period was 48.4 km2. Trends in forest gain/loss and urbanization differed between watersheds. Wetland gains and losses were within the margin of error of the satellite imagery analysis. No significant land cover change was measured at restoration sites, although it was visible in aerial imagery, therefore, the 30-m land-cover product may not be appropriate for assessment of early-stage wetland restoration. These findings suggest that floodplain restoration sites in reaches downstream of watersheds with decreasing forest cover will be subject to increased sediment loads, and those downstream of urbanization will experience effects of increased impervious surfaces on hydrologic processes.

  11. Efficiency Improvement through Reduction in Friction and Wear in Powertrain Systems

    SciTech Connect (OSTI)

    Michael Killian

    2009-09-30T23:59:59.000Z

    The objective of this project is to improve the efficiency of truck drivelines through reduction of friction and parasitic losses in transmission and drive axles. Known efficiencies for these products exceeded 97 percent, so the task was not trivial. The project relied on a working relationship between modeling and hardware testing. Modeling was to shorten the development cycle by guiding the selection of materials, processes and strategies. Bench top and fixture tests were to validate the models. Modeling was performed at a world class, high academic level, but in the end, modeling did not impact the hardware development as much as intended. Insights leading to the most significant accomplishments came from bench top and fixture tests and full scale dynamometer tests. A key development in the project was the formulation of the implementation strategy. Five technical elements with potential to minimize friction and parasitic losses were identified. These elements included churning, lubrication, surface roughness, coatings and textures. An interesting fact is that both Caterpillar and Eaton independently converged on the same set of technical elements in formulating their implementation strategies. Exploiting technical elements of the implementation strategy had a positive impact on transmission and drive axle efficiencies. During one dynamometer test of an Eaton Best Tech 1 transmission, all three gear ranges tested: Under drive, direct drive and over drive, showed efficiencies greater than 99 percent. Technology boosts to efficiency for transmissions reached 1 percent, while efficiency improvements to drive axle pushed 2 percent. These advancements seem small, but the accomplishment is large considering that these products normally run at greater than 97 percent efficiency. Barriers and risks to implementing these technology elements are clear. Schemes using a low fill sump and spray tubes endanger the gears and bearings by lubricant starvation. Gear coatings have exhibited durability issues, stripping away under conditions less demanding than 750,000 miles in service on the road. Failed coatings compound the problem by contaminating the lubricant with hard particles. Under the most severe conditions, super finished surfaces may polish further, reaching a surface roughness unable to support the critical oil film thickness. Low viscosity and low friction lubricants may not protect the gears and bearings adequately leading to excessive pitting, wear and noise. Additives in low friction oils may not stay in solution or suspended thus settling to the bottom and unavailable when they are needed most. Technical barriers and risks can be overcome through engineering, but two barriers remain formidable: (1) cost of the technology and (2) convincing fleet owners that the technology provides a tangible benefit. Dry sumps lower lubricant operating temperatures so the removal of heat exchangers and hoses and reduced demand on engine cooling systems justify their use. The benefits of surface texturing are varied and remain unproven. Lubricant costs seem manageable, but the cost of super finishing and gear coating are high. These are issues of scale and processing technology. Going across the board with gear super finishing and coating will reduce costs. Pushing the envelope to applications with higher torque and higher power density should drive the adoption of these technologies. Fleet owners are an educated and seasoned lot. Only technology measureable in dollars returned is used on truck fleets. To convince fleet owners of the benefit of these technologies, new precision in measuring fuel efficiency must be introduced. Legislation for a minimum standard in truck miles per gallon would also enable the use of these technologies. Improving the efficiency of truck transmissions and axle will make a noticeable impact on the fuel consumption by heavy vehicles in the United States. However, the greatest benefit will come when all the individual efficiency technologies like hybrid power, aerodynamic fairings, auxiliary power units, super

  12. Onboard Plasmatron Hydrogen Production for Improved Vehicles

    SciTech Connect (OSTI)

    Daniel R. Cohn; Leslie Bromberg; Kamal Hadidi

    2005-12-31T23:59:59.000Z

    A plasmatron fuel reformer has been developed for onboard hydrogen generation for vehicular applications. These applications include hydrogen addition to spark-ignition internal combustion engines, NOx trap and diesel particulate filter (DPF) regeneration, and emissions reduction from spark ignition internal combustion engines First, a thermal plasmatron fuel reformer was developed. This plasmatron used an electric arc with relatively high power to reform fuels such as gasoline, diesel and biofuels at an oxygen to carbon ratio close to 1. The draw back of this device was that it has a high electric consumption and limited electrode lifetime due to the high temperature electric arc. A second generation plasmatron fuel reformer was developed. It used a low-current high-voltage electric discharge with a completely new electrode continuation. This design uses two cylindrical electrodes with a rotating discharge that produced low temperature volumetric cold plasma., The lifetime of the electrodes was no longer an issue and the device was tested on several fuels such as gasoline, diesel, and biofuels at different flow rates and different oxygen to carbon ratios. Hydrogen concentration and yields were measured for both the thermal and non-thermal plasmatron reformers for homogeneous (non-catalytic) and catalytic reforming of several fuels. The technology was licensed to an industrial auto part supplier (ArvinMeritor) and is being implemented for some of the applications listed above. The Plasmatron reformer has been successfully tested on a bus for NOx trap regeneration. The successful development of the plasmatron reformer and its implementation in commercial applications including transportation will bring several benefits to the nation. These benefits include the reduction of NOx emissions, improving engine efficiency and reducing the nation's oil consumption. The objective of this program has been to develop attractive applications of plasmatron fuel reformer technology for onboard applications in internal combustion engine vehicles using diesel, gasoline and biofuels. This included the reduction of NOx and particulate matter emissions from diesel engines using plasmatron reformer generated hydrogen-rich gas, conversion of ethanol and bio-oils into hydrogen rich gas, and the development of new concepts for the use of plasmatron fuel reformers for enablement of HCCI engines.

  13. MOLTEN CARBONATE FUEL CELL PRODUCT DESIGN IMPROVEMENT

    SciTech Connect (OSTI)

    H.C. Maru; M. Farooque

    2005-03-01T23:59:59.000Z

    The program was designed to advance the carbonate fuel cell technology from full-size proof-of-concept field test to the commercial design. DOE has been funding Direct FuelCell{reg_sign} (DFC{reg_sign}) development at FuelCell Energy, Inc. (FCE, formerly Energy Research Corporation) from an early state of development for stationary power plant applications. The current program efforts were focused on technology and system development, and cost reduction, leading to commercial design development and prototype system field trials. FCE, in Danbury, CT, is a world-recognized leader for the development and commercialization of high efficiency fuel cells that can generate clean electricity at power stations, or at distributed locations near the customers such as hospitals, schools, universities, hotels and other commercial and industrial applications. FCE has designed three different fuel cell power plant models (DFC300A, DFC1500 and DFC3000). FCE's power plants are based on its patented DFC{reg_sign} technology, where a hydrocarbon fuel is directly fed to the fuel cell and hydrogen is generated internally. These power plants offer significant advantages compared to the existing power generation technologies--higher fuel efficiency, significantly lower emissions, quieter operation, flexible siting and permitting requirements, scalability and potentially lower operating costs. Also, the exhaust heat by-product can be used for cogeneration applications such as high-pressure steam, district heating and air conditioning. Several sub-MW power plants based on the DFC design are currently operating in Europe, Japan and the US. Several one-megawatt power plant design was verified by operation on natural gas at FCE. This plant is currently installed at a customer site in King County, WA under another US government program and is currently in operation. Because hydrogen is generated directly within the fuel cell module from readily available fuels such as natural gas and waste water treatment gas, DFC power plants are ready today and do not require the creation of a hydrogen infrastructure. Product improvement progress made during the program period in the areas of technology, manufacturing processes, cost reduction and balance-of-plant equipment designs is discussed in this report.

  14. Geometrical splitting technique to improve the computational efficiency in Monte Carlo calculations for proton therapy

    SciTech Connect (OSTI)

    Ramos-Mendez, Jose [Benemerita Universidad Autonoma de Puebla, 18 Sur and San Claudio Avenue, Puebla, Puebla 72750 (Mexico); Perl, Joseph [SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025 (United States); Faddegon, Bruce [Department of Radiation Oncology, University of California at San Francisco, California 94143 (United States); Schuemann, Jan; Paganetti, Harald [Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114 (United States)

    2013-04-15T23:59:59.000Z

    Purpose: To present the implementation and validation of a geometrical based variance reduction technique for the calculation of phase space data for proton therapy dose calculation. Methods: The treatment heads at the Francis H Burr Proton Therapy Center were modeled with a new Monte Carlo tool (TOPAS based on Geant4). For variance reduction purposes, two particle-splitting planes were implemented. First, the particles were split upstream of the second scatterer or at the second ionization chamber. Then, particles reaching another plane immediately upstream of the field specific aperture were split again. In each case, particles were split by a factor of 8. At the second ionization chamber and at the latter plane, the cylindrical symmetry of the proton beam was exploited to position the split particles at randomly spaced locations rotated around the beam axis. Phase space data in IAEA format were recorded at the treatment head exit and the computational efficiency was calculated. Depth-dose curves and beam profiles were analyzed. Dose distributions were compared for a voxelized water phantom for different treatment fields for both the reference and optimized simulations. In addition, dose in two patients was simulated with and without particle splitting to compare the efficiency and accuracy of the technique. Results: A normalized computational efficiency gain of a factor of 10-20.3 was reached for phase space calculations for the different treatment head options simulated. Depth-dose curves and beam profiles were in reasonable agreement with the simulation done without splitting: within 1% for depth-dose with an average difference of (0.2 {+-} 0.4)%, 1 standard deviation, and a 0.3% statistical uncertainty of the simulations in the high dose region; 1.6% for planar fluence with an average difference of (0.4 {+-} 0.5)% and a statistical uncertainty of 0.3% in the high fluence region. The percentage differences between dose distributions in water for simulations done with and without particle splitting were within the accepted clinical tolerance of 2%, with a 0.4% statistical uncertainty. For the two patient geometries considered, head and prostate, the efficiency gain was 20.9 and 14.7, respectively, with the percentages of voxels with gamma indices lower than unity 98.9% and 99.7%, respectively, using 2% and 2 mm criteria. Conclusions: The authors have implemented an efficient variance reduction technique with significant speed improvements for proton Monte Carlo simulations. The method can be transferred to other codes and other treatment heads.

  15. Improved Engine Control Strategies Enabled by Digital Signal...

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

    Control Strategies Enabled by Digital Signal-Processing Method for Zirconia Exhaust Sensors Improved Engine Control Strategies Enabled by Digital Signal-Processing Method for...

  16. Improved Method for Isolation of Microbial RNA from Biofuel Feedstock...

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

    Method for Isolation of Microbial RNA from Biofuel Feedstock for Metatranscriptomics. Improved Method for Isolation of Microbial RNA from Biofuel Feedstock for Metatranscriptomics....

  17. Improved System Performance and Reduced Cost of a Fuel Reformer...

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

    System Performance and Reduced Cost of a Fuel Reformer, LNT, and SCR Aftertreatment System Meeting Emissions Useful Life Requirement Improved System Performance and Reduced Cost of...

  18. Energy efficiency improvements in Chinese compressed air systems

    E-Print Network [OSTI]

    McKane, Aimee; Li, Li; Li, Yuqi; Taranto, T.

    2008-01-01T23:59:59.000Z

    Air Systems, Paper #071 Energy efficiency improvements into increase industrial energy efficiency. As a result, morein use. Over time, energy efficiency decreases and the cost

  19. Sandia National Laboratories: value energy-efficient improvements

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

    value energy-efficient improvements PV Value Tool Featured at Washington D.C. Roundtable On April 1, 2014, in Energy, News, News & Events, Partnership, Photovoltaic, Renewable...

  20. Improving Pumping System Performance: A Sourcebook for Industry, Second Edition

    SciTech Connect (OSTI)

    Not Available

    2006-05-01T23:59:59.000Z

    Prepared for the DOE Industrial Technologies Program, this sourcebook contains the practical guidelines and information manufacturers need to improve the efficiency of their pumping systems.