National Library of Energy BETA

Sample records for image gallery external

  1. Image Gallery

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation CurrentHenry Bellamy, Ph.D.FoodHydropower,PrincipalIdaho NationalA pIlyaImage

  2. Galleries

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDid you not find whatGasEnergyfeatureCleanperformanceCareers Image Gallery

  3. Galleries

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDid you not find whatGasEnergyfeatureCleanperformanceCareers Image Gallery

  4. Sandia National Laboratories: News: Image Gallery

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation ofAlbuquerque Albuquerque Housing EducationImage Gallery Members of the media

  5. STAR Images: Image gallery from the Solenoidal Tracker at RHIC

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

    The primary physics task of STAR is to study the formation and characteristics of the quark-gluon plasma (QGP), a state of matter believed to exist at sufficiently high energy densities. STAR consists of several types of detectors, each specializing in detecting certain types of particles or characterizing their motion. These detectors allow final statements to be made about the collision. The gallery of STAR images makes available a small collection of event-generated images from Gold-Beam experiments, a simulation of TCP Drift, and a library of STAR instrument and construction photos.

  6. Human Genome Program Image Gallery (from genomics.energy.gov)

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

    This collection contains approximately 240 images from the genome programs of DOE's Office of Science. The images are divided into galleries related to biofuels research, systems biology, and basic genomics. Each image has a title, a basic citation, and a credit or source. Most of the images are original graphics created by the Genome Management Information System (GMIS). GMIS images are recognizable by their credit line. Permission to use these graphics is not needed, but please credit the U.S. Department of Energy Genome Programs and provide the website http://genomics.energy.gov. Other images were provided by third parties and not created by the U.S. Department of Energy. Users must contact the person listed in the credit line before using those images. The high-resolution images can be downloaded.

  7. Sandia National Laboratories: News: Image Gallery

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDid youOxygenLaboratoryInnovationEmployeeNews Detecting biothreatImage

  8. Image Gallery

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverse (JournalvivoHighHusseinSOLICWfATION/MODIFICATlON OFMA!n!NEZ

  9. IEEE TRANSACTIONS ON EDUCATION, VOL. 45, NO. 4, NOVEMBER 2002 1 The SIVA Demonstration Gallery for Signal, Image,

    E-Print Network [OSTI]

    Rajashekar, Umesh

    IEEE TRANSACTIONS ON EDUCATION, VOL. 45, NO. 4, NOVEMBER 2002 1 The SIVA Demonstration Gallery for Signal, Image, and Video Processing Education Umesh Rajashekar, Student Member, IEEE, George C. Panayi, Frank P. Baumgartner, and Alan C. Bovik, Fellow, IEEE Abstract--The techniques of digital signal

  10. Photo Gallery

    E-Print Network [OSTI]

    Photo Gallery. Pictures by Nicola Garofalo. Luis Caffarelli. Luis Caffarelli. Luis Caffarelli. Yanyan Li. Lei Zhang. Marianne Korten. Luigi Ambrosio. Luigi Ambrosio.

  11. SAGE Photo Gallery

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

    Photo Gallery SAGE Photo Gallery A National Science Foundation Research Experiences for Undergraduates program Contacts Institute Director Harald Dogliani-Los Alamos SAGE...

  12. C-Safe Image Gallery from the Center for the Simulation of Accidental Fires and Explosions

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

    The University of Utah created an alliance with the DOE Advanced Simulation and Computing (ASC) program to form the Center for the Simulation of Accidental Fires and Explosions (C-SAFE). The Center focuses specifically on providing state-of-the-art, science-based tools for the numerical simulation of accidental fires and explosions, especially within the context of handling and storage of highly flammable materials. The objective of C-SAFE is to provide a system comprising a problem-solving environment in which fundamental chemistry and engineering physics are fully coupled with non-linear solvers, optimization, computational steering, visualization and experimental data verification. The availability of simulations using this system will help to better evaluate the risks and safety issues associated with fires and explosions. The scientific images at this website provide technical views of various flame types and configurations (http://www.csafe.utah.edu/Information/summary.html). See also the Container Dynamics presentations at http://www.csafe.utah.edu/Teams/ContainerDynamics/cd_presentations.html.

  13. Photo Gallery

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

    limiting NIF's operating energy.

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  14. Photo Gallery

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

    rooftop of a building across the street.

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  15. Photo Gallery

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

    the Targer Chamber. (Credit: Jim Pryatel)

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  16. Photo Gallery

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

    Densities"). Credit: James Pryatel

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  17. Photo Gallery

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

    triple pulse. Credit: James Pryatel

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  18. Photo Gallery

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

    Control Room. Credit: Damien Jemison

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  19. Photo Gallery

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

    and shape. Credit: James Pryatel

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  20. Photo Gallery

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

    next generation of laser fusion systems.

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  1. Photo Gallery

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

    need for the National Ignition Facility.

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  2. Visualizations Image Gallery

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-Inspired SolarAbout /Two0 -UsingHeat & Cool HistoryVisiting

  3. CASL - Image Gallery

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits &Bradbury Science Museum6 Shares Craig Stevens is the

  4. Environmental Image Gallery

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation Current HABFES October 27th, 2010Environment, Health,EnvironmentalLong-term

  5. Photo Galleries | Department of Energy

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

    (Lemont, Illinois) National Labs are Nuclear Experts Oak Ridge Manhattan Project NHP Photo Gallery Prover loop on the meter skid at the Bryan Mound site. Strategic Petroleum...

  6. Albin O. Kuhn Library & Gallery Friends of the Library & Gallery

    E-Print Network [OSTI]

    Maryland, Baltimore County, University of

    Albin O. Kuhn Library & Gallery Friends of the Library & Gallery UMBC 1000 Hilltop Circle Baltimore, MD 21250 PHONE: 410-455-2356 FAX: 410-455-1078 VOICE/TTY: 410-455-32 WEB: www.umbc.edu/library October 25, 2012 Dear UMBC Community Member: Everyone at UMBC benefits from the Albin O. Kuhn Library

  7. Between Conceptual Acts and Photography: Dennis Oppenheim's "Gallery Transplant" (1969)

    E-Print Network [OSTI]

    An, Jamin

    2013-01-01

    Gallery Transplant, 1969. Gelatin silver print, photographicGallery Transplant, 1969. Gelatin-silver prints and hand-Gallery Transplant, 1969. Gelatin silver print, photographic

  8. Photo Galleries | Department of Energy

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

    the D.C. Community Record-Breaking Solar Game-Changing Advancements in Solar Energy CFC Photo Gallery Energy Pumpkin Patterns Science Alliance 2012 Science Alliance David Sandalow,...

  9. The response of an electron in the image potential on the external steady fields

    E-Print Network [OSTI]

    P. A. Golovinski; M. A. Preobrazhenskiy

    2015-02-22

    The exact wave functions, which describe the states of an electron, bound in the image potential, and the magnetic field, which is perpendicular to surface of a metal, are obtained. The correction terms to the energy of an electron in the first order of the perturbation theory with respect to the interaction with the external electric field are calculated. The possibility of experimental measurement of a local electric field by the level shift is analyzed.

  10. Fermilab Art Gallery

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

    Thru A Distant Lens: Sherri Smith & Barbara Cervenka Both of our recent series of works are based on images from NASA. Barbara is using Hubble Space Telescope photographs; Sherri...

  11. Fermilab Art Gallery

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

    and intuitive approach to my research, which involves the application of quantum mechanics to various problems in the atomic world. I produce images as a regular part of my...

  12. A review of "'Veronese, His Seventeenth-Century Legacy.' Exhibition Review, with a Gallery of Images of 'Paolo Veronese: A Master and His Workshop in Renaissance Venice.'" 

    E-Print Network [OSTI]

    Mulvihill, Maureen E.

    2014-01-01

    since 1988 (Ringling’s webpage). Ringling’s Veronese was organized by the show’s lead curator Vir- ginia Brilliant (Curator, European Art; Image 2), with curatorial part- reviews 7 ner Frederick Ilchman (Baker Curator of Paintings, Boston Museum... collection of paint- ings, rare books, and prints, his early acquisitions included Veronese’s full-length oil of Francesco Franceschini (Image 10). Thematically organized, the show presents the achievement of Veronese over five beautifully assembled...

  13. BooNE: Picture Gallery

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura|BilayerBiomimetic DyeBluevsDetectorPicture Gallery

  14. Photo Galleries | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann JacksonDepartment ofOffice|inWest Kentucky Regional SciencePatrickAwardPeter W.Gallery

  15. SU-E-J-73: Generation of Volumetric Images with a Respiratory Motion Model Based On An External Surrogate Signal

    SciTech Connect (OSTI)

    Hurwitz, M; Williams, C; Mishra, P; Dhou, S; Lewis, J

    2014-06-01

    Purpose: Respiratory motion during radiotherapy treatment can differ significantly from motion observed during imaging for treatment planning. Our goal is to use an initial 4DCT scan and the trace of an external surrogate marker to generate 3D images of patient anatomy during treatment. Methods: Deformable image registration is performed on images from an initial 4DCT scan. The deformation vectors are used to develop a patient-specific linear relationship between the motion of each voxel and the trajectory of an external surrogate signal. Correlations in motion are taken into account with principal component analysis, reducing the number of free parameters. This model is tested with digital phantoms reproducing the breathing patterns of ten measured patient tumor trajectories, using five seconds of data to develop the model and the subsequent thirty seconds to test its predictions. The model is also tested with a breathing physical anthropomorphic phantom programmed to reproduce a patient breathing pattern. Results: The error (mean absolute, 95th percentile) over 30 seconds in the predicted tumor centroid position ranged from (0.8, 1.3) mm to (2.2, 4.3) mm for the ten patient breathing patterns. The model reproduced changes in both phase and amplitude of the breathing pattern. Agreement between prediction and truth over the entire image was confirmed by assessing the global voxel intensity RMS error. In the physical phantom, the error in the tumor centroid position was less than 1 mm for all images. Conclusion: We are able to reconstruct 3D images of patient anatomy with a model correlating internal respiratory motion with motion of an external surrogate marker, reproducing the expected tumor centroid position with an average accuracy of 1.4 mm. The images generated by this model could be used to improve dose calculations for treatment planning and delivered dose estimates. This work was partially funded by a research grant from Varian Medical Systems.

  16. Fermilab | Illinois Accelerator Research Center | Image Gallery

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDid you not find whatGasEnergy TechnologiesCapabilitiesIARC

  17. Photo Gallery: Renewable Energy in 2013 | Department of Energy

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

    Photo Gallery: Renewable Energy in 2013 Photo Gallery: Renewable Energy in 2013 December 31, 2013 - 2:07pm Addthis April 2013: The Energy Department recognizes the...

  18. UNIVERSITY ART COLLECTIONS AND GALLERIES POLICIES AND PROCEDURES

    E-Print Network [OSTI]

    UNIVERSITY ART COLLECTIONS AND GALLERIES POLICIES AND PROCEDURES Table of Contents Article I - Mission Article II - Goals Article III - Organization of the University Art Collections and Galleries - Mission The mission of the University Art Collections and Galleries is to inspire and educate

  19. Superficial dosimetry imaging based on ?erenkov emission for external beam radiotherapy with megavoltage x-ray beam

    SciTech Connect (OSTI)

    Zhang, Rongxiao; Glaser, Adam K.; Gladstone, David J.; Fox, Colleen J.; Pogue, Brian W.; Norris Cotton Cancer Center, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire 03766; Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755

    2013-10-15

    Purpose: ?erenkov radiation emission occurs in all tissue, when charged particles (either primary or secondary) travel at velocity above the threshold for the ?erenkov effect (about 220 KeV in tissue for electrons). This study presents the first examination of optical ?erenkov emission as a surrogate for the absorbed superficial dose for MV x-ray beams.Methods: In this study, Monte Carlo simulations of flat and curved surfaces were studied to analyze the energy spectra of charged particles produced in different regions near the surfaces when irradiated by MV x-ray beams. ?erenkov emission intensity and radiation dose were directly simulated in voxelized flat and cylindrical phantoms. The sampling region of superficial dosimetry based on ?erenkov radiation was simulated in layered skin models. Angular distributions of optical emission from the surfaces were investigated. Tissue mimicking phantoms with flat and curved surfaces were imaged with a time domain gating system. The beam field sizes (50 × 50–200 × 200 mm{sup 2}), incident angles (0°–70°) and imaging regions were all varied.Results: The entrance or exit region of the tissue has nearly homogeneous energy spectra across the beam, such that their ?erenkov emission is proportional to dose. Directly simulated local intensity of ?erenkov and radiation dose in voxelized flat and cylindrical phantoms further validate that this signal is proportional to radiation dose with absolute average discrepancy within 2%, and the largest within 5% typically at the beam edges. The effective sampling depth could be tuned from near 0 up to 6 mm by spectral filtering. The angular profiles near the theoretical Lambertian emission distribution for a perfect diffusive medium, suggesting that angular correction of ?erenkov images may not be required even for curved surface. The acquisition speed and signal to noise ratio of the time domain gating system were investigated for different acquisition procedures, and the results show there is good potential for real-time superficial dose monitoring. Dose imaging under normal ambient room lighting was validated, using gated detection and a breast phantom.Conclusions: This study indicates that ?erenkov emission imaging might provide a valuable way to superficial dosimetry imaging in real time for external beam radiotherapy with megavoltage x-ray beams.

  20. Gallery | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    Gallery Chemical Sciences, Geosciences, & Biosciences (CSGB) Division CSGB Home About Research Areas Reports and Activities Science Highlights Principal Investigators' Meetings BES...

  1. Photo Gallery: 2015 ARPA-E Innovation Summit Technology Showcase...

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

    to 60 in under five seconds. Concept to reality in just six weeks. Photo Gallery: 3D Printing Brings Classic Shelby Cobra to Life The backdrop of the 2014 ARPA-E Innovation...

  2. Photo Gallery: Argonne OutLoud: "Invisible Influence: A Bacterial...

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

    Photo Gallery: Argonne OutLoud: "Invisible Influence: A Bacterial Guide to Your Health" Argonne OutLoud Invisible Influence: A Bacterial Guide to Your Health 1 of 10 Argonne...

  3. V&A Medieval & Renaissance Galleries: A Passive Approach to Humidity Control 

    E-Print Network [OSTI]

    Lerpiniere, A.

    2011-01-01

    The new Medieval & Renaissance Galleries employ a passive approach to environmental control. The design exploits the massive nature of the building and uses sophisticated control techniques to minimise variations in humidity in the galleries...

  4. Photo Gallery: 3D Printing Brings Classic Shelby Cobra to Life...

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

    Photo Gallery: 3D Printing Brings Classic Shelby Cobra to Life Photo Gallery: 3D Printing Brings Classic Shelby Cobra to Life April 15, 2015 - 4:02pm Addthis Zero to 60 in under...

  5. Journal of Heat Transfer1999 JHT Heat Transfer Gallery Department of Mechanical 8. Aerospace Engineering

    E-Print Network [OSTI]

    Kihm, IconKenneth David

    Journal of Heat Transfer1999 JHT Heat Transfer Gallery S. M. You Department of Mechanical 8 Transfer Visualization Committee organized two photo gallery sessions in 1998. The International Heat Transfer Photo Gallery was held at the l la' International Heat Transfer Conference (IHTC) in Kyongju

  6. Electrical resistivity tomography survey for delineating uncharted mine galleries in West Bengal, India

    SciTech Connect (OSTI)

    Maillol, J.M. [Univ. of Alberta, Edmonton, Alberta (Canada). Dept. of Physics] [Univ. of Alberta, Edmonton, Alberta (Canada). Dept. of Physics; Seguin, M.K. [Univ. Laval, Ste-Foy, Quebec (Canada). Dept. de Geologie et Genie Geologique] [Univ. Laval, Ste-Foy, Quebec (Canada). Dept. de Geologie et Genie Geologique; Gupta, O.P.; Akhauri, H.M. [Central Mine Planning and Design Inst., Ranchi (India)] [Central Mine Planning and Design Inst., Ranchi (India); Sen, N. [Mining, Geology and Metallurgical Inst., Calcutta (India)] [Mining, Geology and Metallurgical Inst., Calcutta (India)

    1999-03-01

    The history of subsidence, fires, flooding and other kinds of environmental hazards related to shallow coal workings in India goes back to colonial times some 300 years ago. As coal production accelerated in modern times, so did the environmental and socio-economic drawbacks related to exploitation. In the mid-1980s, a hydropneumatic sand-stowing method was developed to fill in abandoned galleries but their exact location had to be known. Unfortunately, most of these old workings are uncharted and consequently large tracts of land cannot be stabilized. A research program making use of integrated surface, borehole and cross-hole geophysical methods was undertaken over a five-year span to try to solve this problem. Surface geophysical methods, being cheaper and faster than their cross- and downhole counterparts, were used to cover larger areas on an exploratory basis, while cross-hole methods were employed to locate more accurately one or a network of galleries to be perforated by drillhole(s) and used as a conduit for sand stowing. The authors report the results of one of the cross-hole geophysical methods: electrical resistivity tomography (ERT). A pole-dipole configuration is used and both cross-hole and surface-borehole methodologies are tested. Forward modelling and inversion of synthetic data making use of downhole and surface physical and geometrical parameters are presented first. This phase is followed by the inversion of real data. It is concluded that ERT is not applicable for the detection of dry voids, but is effective in a waterlogged environment which is estimated to represent 85--90% of the cases. In waterlogged galleries, ERT is applicable in both cross-hole and surface-downhole modes, the latter allowing a larger surface coverage at low cost. ERT is thus a reliable geophysical tool to image water-filled voids and an adequate technique to address environmental and geotechnical problems.

  7. An Exhibition Review, with a Gallery of Selected Images

    E-Print Network [OSTI]

    Mulvihill, Maureen E.

    2010-01-01

    . Organized by The Bard Graduate Center in collaboration with the New-York Historical Society. Curators: Marybeth De Filippis and Deborah L. Krohn. Exhibition Designer, Chief Preparator, Photographer: Ian Sullivan. Exhibition catalogue: Dutch New York..., Associate Professor, Coordinator for History and Theory of Museums, Bard Graduate Center, New York. The show?s impres- sive catalogue (399 pages), an essential reference source for a broad range of researchers, was co-edited by Deborah L. Krohn and Peter...

  8. Sandia National Laboratories: Research: Materials Science: Image Gallery

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation ofAlbuquerque AlbuquerqueCybernetics: Perception

  9. Photo Gallery: Renewable Energy in 2013 | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterested PartiesBuilding energy codesPhiladelhia Gas Works (PGW)DataPhoto Gallery:

  10. Interferometric detection of mode splitting for whispering gallery mode biosensors

    E-Print Network [OSTI]

    Knittel, Joachim; Lee, Kwan H; Bowen, Warwick P

    2010-01-01

    Sensors based on whispering gallery mode resonators can detect single nanoparticles and even single molecules. Particles attaching to the resonator induce a doublet in the transmission spectrum which provides a self-referenced detection signal. However, in practice this spectral feature is often obscured by the width of the resonance line which hides the doublet structure. This happens particularly in liquid environments that reduce the effective Q factor of the resonator. In this paper we demonstrate an interferometric set-up that allows the direct detection of the hidden doublet and thus provides a pathway for developing practical sensor applications.

  11. Detection limits in plasmonic whispering gallery mode biosensors

    E-Print Network [OSTI]

    Swaim, Jon D; Bowen, Warwick P

    2011-01-01

    We analyze a whispering gallery mode biosensor with a metallic nanorod bound to its surface. It is found that a localized surface plasmon resonance in the nanorod can reduce the optical mode volume of the resonator by as much as four orders of magnitude via a local enhancement of the electric field, thus improving the detection sensitivity. Optical frequency shifts as large as 15 MHz are predicted for typical proteins and, for typical experimental parameters, the biosensor is predicted to be limited by laser frequency noise, leading to a minimum detectable polarizability on the order of 10 cubic angstroms.

  12. Gallery | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorkingLosThe 26thIWalterOptimizing(SC)FermiFunding OpportunityGallery

  13. U.S. Geothermal Inc. / Gallery | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EISTJThin Film SolarTown(LECBP) | OpenTrackI/ Gallery < U.S.

  14. Home Articles Directions Contact Green Resources & Links The Green Building Gallery Posted by Branden Klayko: Broken Sidewalk.

    E-Print Network [OSTI]

    Home Articles Directions Contact Green Resources & Links The Green Building Gallery Posted, one door, 72 light fixtu

  15. Genome Structure Gallery from the Mycobacterium Tuberculosis Structual Genomics Consortium

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

    The TB Structural Genomics Consortium works with the structures of proteins from M. tuberculosis, analyzing these structures in the context of functional information that currently exists and that the Consortium generates. The database of linked structural and functional information constructed from this project will form a lasting basis for understanding M. tuberculosis pathogenesis and for structure-based drug design. The Consortium's structural and functional information is publicly available. The Structures Gallery makes more than 650 total structures available by PDB identifier. Some of these are not consortium targets, but all are viewable in 3D color and can be manipulated in various ways by Jmol, an open-source Java viewer for chemical structures in 3D from http://www.jmol.org/

  16. Center for Imaging Science Job Opportunities www.cis.rit.edu/jobs The CIS office does not have any more details on the external postings listed here.

    E-Print Network [OSTI]

    Salvaggio, Carl

    /Expectation: The candidate would work with a cross functional team to architect a camera solution including HW and SW. The candidate would develop proof of concept and demo code in order to validate HW and SW architectures. They would create a lower level SW/HW architecture and work with internal and external work partners to meet

  17. Photo Gallery Photo 1. Flowering plant of the early-blooming, mountain forest understory herb

    E-Print Network [OSTI]

    Medrano, Mónica

    Photo Gallery Photo 1. Flowering plant of the early-blooming, mountain forest understory herb Helleborus foetidus (Ranunculaceae). Inflorescences are produced in early winter, each bearing 20­75 flowers

  18. Three-dimensional whispering gallery modes in InGaAs nanoneedle lasers on silicon

    SciTech Connect (OSTI)

    Tran, T.-T. D.; Chen, R.; Ng, K. W.; Ko, W. S.; Lu, F.; Chang-Hasnain, C. J., E-mail: cch@berkeley.edu [Applied Science and Technology Group and Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, California 94720 (United States)

    2014-09-15

    As-grown InGaAs nanoneedle lasers, synthesized at complementary metal–oxide–semiconductor compatible temperatures on polycrystalline and crystalline silicon substrates, were studied in photoluminescence experiments. Radiation patterns of three-dimensional whispering gallery modes were observed upon optically pumping the needles above the lasing threshold. Using the radiation patterns as well as finite-difference-time-domain simulations and polarization measurements, all modal numbers of the three-dimensional whispering gallery modes could be identified.

  19. Victoria & Albert Museum- Medieval & Renaissance Galleries: A Passive Approach to Humidity Control 

    E-Print Network [OSTI]

    Lerpiniere, A.; Bingham, M.; Walker, S.

    2010-01-01

    , Kuwait, October 26-28, 2010 Table 1. Exhibition categories B C D E Collections Sensitive to high humidity (>55%) Collections Sensitive to low humidity (10... with gallery control. Figure 1. Target conditions ESL-IC-10-10-89 Proceedings of the Tenth International Conference Enhanced Building Operations, Kuwait, October 26-28, 2010 CONTROL STRATEGY The internal environment of the galleries is subject to many...

  20. Center for Imaging Science Job Opportunities www.cis.rit.edu/jobs The CIS office does not have any more details on the external postings listed here.

    E-Print Network [OSTI]

    Salvaggio, Carl

    Center for Imaging Science Job Opportunities www.cis.rit.edu/jobs The CIS office does not have any, Chemistry, or Chemical Engineering. 4. MBA a plus. 5. Good command of Software applications-human effectively to achieve goals. #12;Center for Imaging Science Job Opportunities www.cis.rit.edu/jobs The CIS

  1. 2.4. IMAGE PROCESSING Umesh Rajashekar & Alan C. Bovik

    E-Print Network [OSTI]

    Rajashekar, Umesh

    - The Signal, Image, and Video Audio-Visualization Gallery Umesh Rajashekar and Alan C. Bovik, The University . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3 Java-based Educational Software for Image and Two-Dimensional Signal Processing Lina J. Karam . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 4.3.1 Binary image processing . . . . . . . . . . . . . . . . . . . . . . . . . 17 4.3.2 Histogram

  2. Center for Imaging Science Job Opportunities www.cis.rit.edu/jobs The CIS office does not have any more details on the external postings listed here.

    E-Print Network [OSTI]

    Salvaggio, Carl

    Center for Imaging Science Job Opportunities www.cis.rit.edu/jobs The CIS office does not have any.D. in Physics, Chemistry, Engineering, Neuroscience or related areas, be highly motivated and self

  3. Optothermal transport behavior in whispering gallery mode optical cavities

    SciTech Connect (OSTI)

    Soltani, Soheil; Armani, Andrea M.

    2014-08-04

    Over the past century, whispering gallery mode optical cavities have enabled numerous advances in science and engineering, such as discoveries in quantum mechanics and non-linear optics, as well as the development of optical gyroscopes and add drop filters. One reason for their widespread appeal is their ability to confine light for long periods of time, resulting in high circulating intensities. However, when sufficiently large amounts of optical power are coupled into these cavities, they begin to experience optothermal or photothermal behavior, in which the optical energy is converted into heat. Above the optothermal threshold, the resonance behavior is no longer solely defined by electromagnetics. Previous work has primarily focused on the role of the optothermal coefficient of the material in this instability. However, the physics of this optothermal behavior is significantly more complex. In the present work, we develop a predictive theory based on a generalizable analytical expression in combination with a geometry-specific COMSOL Multiphysics finite element method model. The simulation couples the optical and thermal physics components, accounting for geometry variations as well as the temporal and spatial profile of the optical field. To experimentally verify our theoretical model, the optothermal thresholds of a series of silica toroidal resonant cavities are characterized at different wavelengths (visible through near-infrared) and using different device geometries. The silica toroid offers a particularly rigorous case study for the developed optothermal model because of its complex geometrical structure which provides multiple thermal transport paths.

  4. Transcript of the movie "Bouncing of a Jet off a Newtonian Liquid Surface" 2007 Gallery of Fluid Motion, http://pof.aip.org/pof/gallery

    E-Print Network [OSTI]

    twice. The stream is perturbed by a plastic cable tie and the disturbance starts the jet bouncing. If the stream is perturbed again, it can bounce a second time. As the bath velocity is decreased, the jetTranscript of the movie "Bouncing of a Jet off a Newtonian Liquid Surface" 2007 Gallery of Fluid

  5. Topological Galleries: A High Level User Interface for Topology Controlled Volume Rendering

    SciTech Connect (OSTI)

    MacCarthy, Brian; Carr, Hamish; Weber, Gunther H.

    2011-06-30

    Existing topological interfaces to volume rendering are limited by their reliance on sophisticated knowledge of topology by the user. We extend previous work by describing topological galleries, an interface for novice users that is based on the design galleries approach. We report three contributions: an interface based on hierarchical thumbnail galleries to display the containment relationships between topologically identifiable features, the use of the pruning hierarchy instead of branch decomposition for contour tree simplification, and drag-and-drop transfer function assignment for individual components. Initial results suggest that this approach suffers from limitations due to rapid drop-off of feature size in the pruning hierarchy. We explore these limitations by providing statistics of feature size as function of depth in the pruning hierarchy of the contour tree.

  6. U-199: Drupal Drag & Drop Gallery Module Arbitrary File Upload Vulnerability

    Broader source: Energy.gov [DOE]

    The vulnerability is caused due to the sites/all/modules/dragdrop_gallery/upload.php script improperly validating uploaded files, which can be exploited to execute arbitrary PHP code by uploading a PHP file with e.g. an appended ".gif" file extension.

  7. Optical apparatus for conversion of whispering-gallery modes into a free space gaussian like beam

    DOE Patents [OSTI]

    Stallard, B.W.; Makowski, M.A.; Byers, J.A.

    1992-05-19

    An optical converter for efficient conversion of millimeter wavelength whispering-gallery gyrotron output into a linearly polarized, free-space Gaussian-like beam is described. The converter uses a mode-converting taper and three mirror optics. The first mirror has an azimuthal tilt to eliminate the k[sub [phi

  8. Realisierung externer kryptographischer Funktionen

    E-Print Network [OSTI]

    Clausen, Michael

    Realisierung externer kryptographischer Funktionen für Arduino Bachelorarbeit von René Julian Neff;Zusammenfassung In dieser Bachelorarbeit wird der Entwurf und die Implementierung von zwei auf der Arduino in dieser Arbeit realisiertes Koprozessorsystem, das ebenfalls mit einem weite- ren Arduino Mikrocontroller

  9. External Science Review Report of the External Science

    E-Print Network [OSTI]

    Power, Mary Eleanor

    1 External Science Review Report of the External Science Review Committee The Nature Conservancy and Design: Lee Meinicke Jonathan Adams Design and Layout: Naomi Nickerson #12;3 External Science Review............................................................................................................................... 10 The Challenge of Changing Conservation and Changing Science

  10. PROGRESS IN DEVELOPING AN OVARIAN CANCER SCREEN BASED ON WHISPERING GALLERY MODE IMAGING

    E-Print Network [OSTI]

    Huckabay, Heath Aaron

    2012-05-31

    Despite considerable research devoted to identifying biomarkers for ovarian cancer, no screening method is currently available for routine early detection of the disease. While highly treatable in its early stages, a lack of symptoms early...

  11. External Technical Review Report

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum12, 2015Executive Order 13514 Federal LeadershipDepartmentSeptemebr 2010External

  12. Incorporating externalities in conservation programs

    SciTech Connect (OSTI)

    Jordan, J.L.

    1995-06-01

    As water utilities incorporate integrated resource planning in their management processes, it is necessary to incorporate the concept of externalities. This is particularly important as methods evolve of evaluating the costs and benefits of water conservation programs. The purpose of this article is to provide an introduction to the issues surrounding externalities, including their definition, methods of internalizing externalities, and a survey of ways to estimate costs and benefits of externalities. Although most discussions of externalities emphasize negative effects on the environment, this article will illustrate both positive and negative externalities associated with practicing water conservation.

  13. Imaging

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDid you notHeat Pumps Heat Pumpsfacility doe logo CH2M-WG logoImaging

  14. Imaging

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation CurrentHenry Bellamy, Ph.D.FoodHydropower,PrincipalIdahoImaging Print The

  15. Imaging

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation CurrentHenry Bellamy, Ph.D.FoodHydropower,PrincipalIdahoImaging Print

  16. Infrared light detection using a whispering-gallery-mode optical microcavity

    SciTech Connect (OSTI)

    Zhu, Jiangang, E-mail: jzhu@seas.wustl.edu, E-mail: ozdemir@seas.wustl.edu, E-mail: yang@seas.wustl.edu; Ozdemir, Sahin Kaya, E-mail: jzhu@seas.wustl.edu, E-mail: ozdemir@seas.wustl.edu, E-mail: yang@seas.wustl.edu; Yang, Lan, E-mail: jzhu@seas.wustl.edu, E-mail: ozdemir@seas.wustl.edu, E-mail: yang@seas.wustl.edu [Department of Electrical and Systems Engineering, Washington University, St. Louis, Missouri 63117 (United States)

    2014-04-28

    We demonstrate a thermal infrared (IR) detector based on an ultra-high-quality-factor (Q) whispering-gallery-mode (WGM) microtoroidal silica resonator and investigate its performance to detect IR radiation at 10??m wavelength. The bandwidth and the sensitivity of the detector are dependent on the power of a probe laser and the detuning between the probe laser and the resonance frequency of the resonator. The microtoroid IR sensor achieved a noise-equivalent-power (NEP) of 7.46?nW, corresponding to an IR intensity of 0.095?mW/cm{sup 2}.

  17. Whispering gallery modes in quantum dot-embedded dielectric microspheres for tagless remote refractometric sensing 

    E-Print Network [OSTI]

    Pang, Shuo

    2008-10-10

    coating. The CdSe/Zns core/shell quantum dots are prepared colloidally via organometallic synthesis. In these experiments, green quantum dots with an emission peak at 530nm are used. The absorption and emission spectra are shown in Figure 9. 23... stream_source_info Shuo.pdf.txt stream_content_type text/plain stream_size 66833 Content-Encoding UTF-8 stream_name Shuo.pdf.txt Content-Type text/plain; charset=UTF-8 WHISPERING GALLERY MODES IN QUANTUM DOT...

  18. External split field generator

    DOE Patents [OSTI]

    Thundat, Thomas George (Knoxville, TN); Van Neste, Charles W. (Kingston, TN); Vass, Arpad Alexander (Oak Ridge, TN)

    2012-02-21

    A generator includes a coil disposed about a core. A first stationary magnetic field source may be disposed on a first end portion of the core and a second stationary magnetic field source may be disposed on a second end portion of core. The first and second stationary magnetic field sources apply a stationary magnetic field to the coil. An external magnetic field source may be disposed outside the coil to apply a moving magnetic field to the coil. Electrical energy is generated in response to an interaction between the coil, the moving magnetic field, and the stationary magnetic field.

  19. Bevalac external beamline optics

    SciTech Connect (OSTI)

    Kalnins, J.G.; Krebs, G.F.; Tekawa, M.M.; Alonso, J.R.

    1987-04-01

    This handbook is intended as an aid for tuning the external particle beam (EPB) lines at the Lawrence Berkeley Laboratory's Bevalac. The information contained within will be useful to the Bevalac's Main Control Room and experimenters alike. First, some general information is given concerning the EPB lines and beam optics. Next, each beam line is described in detail: schematics of the beam line components are shown, all the variables required to run a beam transport program are presented, beam envelopes are given with wire chamber pictures and magnet currents, focal points and magnifications. Some preliminary scaling factors are then presented which should aid in choosing a given EPB magnet's current for a given central Bevalac field. Finally, some tuning hints are suggested.

  20. External Technical Reviews | Department of Energy

    Office of Environmental Management (EM)

    Waste Management Tank Waste and Waste Processing External Technical Reviews External Technical Reviews Documents Available for Download November 15, 2012 External Technical...

  1. Photo Gallery

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

    Switchyard

    Switchyard Support Structures

    The switchyards convert the parallel laser beam layout to the spherical configuration of the target chamber, as the beams need to...

  2. Photo Gallery

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    Featured Photos

    NIF Final Optics

    Two of the 48 final optics assemblies (FOAs) that convert the wavelength of NIF's beamlines and focus the laser light into the Target...

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    Optics

    Frequency Conversion Crystals

    An Optics Processing technician inspects a frequency conversion crystal in the off-line laser conditioning facility. Frequency...

  4. Photo Gallery

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    Area

    NIF Final Optics

    Two of the 48 final optics assemblies (FOAs) that convert the wavelength of NIF's beamlines and focus the laser light into the Target Chamber. The...

  5. Photo Gallery

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

    and robotics engineer Matt Bauer along with lead robotics engineer Albert Wang (not in photo) complete the assembly and programming of new versions of the universal robotic target...

  6. Video Gallery

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    FAQs Visit Us Science Stockpile Stewardship National Security National Competitiveness Fusion and Ignition Experiments Fast Ignition Energy for the Future How to Make a Star How...

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    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-Inspired SolarAbout /Two0 -UsingHeat & Cool »

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  12. History Gallery

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  1. Photo Gallery

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  9. cctbx news: Fast triplet generator for direct methods, Gallery of direct-space asymmetric units, et. al.

    E-Print Network [OSTI]

    Grosse-Kunstleve, Ralf

    10 cctbx news: Fast triplet generator for direct methods, Gallery of direct-space asymmetric units crystallographic algorithms. In this article we give an overview of recent developments. Fast triplet generator for direct methods For almost a year the cctbx has included an experimental triplet generator in the cctbx

  10. Home Your account Current issue Archives Subscriptions Calendar Newsletters Gallery Books The New York Review of Books

    E-Print Network [OSTI]

    · Gallery · Books The New York Review of Books November 21, 2002 Review Looking for a Black Swan By Colin Mc early academic years in New Zealand before obtaining a post at the London School of Economics in 1945 to the need for a new theory; she generates, by means of imaginative creativity, a range of conjectures

  11. Yield enhancement in whispering gallery mode biosensors: microfluidics and optical forces

    E-Print Network [OSTI]

    Khosla, Kiran; Knittel, Joachim; Bowen, Warwick P

    2010-01-01

    A microfluidic whispering gallery mode (WGM) biosensing system is proposed for enhanced delivery and detection of target molecules. A microtoroid resonator coupled to a tapered optical fiber is immersed within a microfluidic channel, and supplied with target molecules at various flow rates. We show through Monte Carlo simulations that the flow characteristics and resonantly enhanced optical forces of the sensor substantially improve both the sensing time and yield. When compared to a diffusion-limited sensing modality, the average time required to detect a single molecule is reduced from more than 100 minutes to less than 10 seconds, and the overall yield of the device is enhanced from less than 5% to a maximum of 70.6% for femtomolar concentrations of analyte.

  12. Coherent spectroscopy of rare-earth-metal-ion-doped whispering-gallery-mode resonators

    SciTech Connect (OSTI)

    McAuslan, D. L.; Korystov, D.; Longdell, J. J. [Jack Dodd Centre for Photonics and Ultra-Cold Atoms, Department of Physics, University of Otago, Dunedin, New Zealand. (New Zealand)

    2011-06-15

    We perform an investigation into the properties of Pr{sup 3+}:Y{sub 2}SiO{sub 5} whispering-gallery-mode resonators as a first step toward achieving the strong coupling regime of cavity QED with rare-earth-metal-ion-doped crystals. Direct measurement of cavity QED parameters are made using photon echoes, giving good agreement with theoretical predictions. By comparing the ions at the surface of the resonator to those in the center, it is determined that the physical process of making the resonator does not negatively affect the properties of the ions. Coupling between the ions and resonator is analyzed through the observation of optical bistability and normal-mode splitting.

  13. External Examiner Reports AcademicBoard/

    E-Print Network [OSTI]

    Daley, Monica A.

    External Examiner Reports AcademicBoard/ CMCSecretary AcademicQuality Officer TQCSub-Group External Examiner Reports ExamBoard Chair/Deputy& CourseDirector Academic QualityOfficer External Examiner Submit external examiner report(s) via online system If multiple reports, create one external examiner report

  14. Macroscopic Center-of-mass Cooling using Whispering Gallery Mode Resonances

    E-Print Network [OSTI]

    Li, Ying Lia; Barker, P F

    2015-01-01

    We demonstrate simultaneous center-of-mass cooling of two coupled oscillators, consisting of a microsphere-cantilever and a tapered optical fiber. Excitation of a whispering gallery mode (WGM) of the microsphere, via the evanescent field of the taper, provides a transduction signal that continuously monitors the relative motion between these two microgram objects with a sensitivity of 3\\,pm. The cavity enhanced optical dipole force is used to provide feedback damping on the motion of the micron-diameter taper, whereas a piezo stack is used to damp the motion of the much larger (up to $ 180\\,\\mu$m in diameter), heavier (up to $1.5\\times 10^{-7}\\,$kg) and stiffer microsphere-cantilever. In each feedback scheme multiple mechanical modes of each oscillator can be cooled, and mode temperatures below 10\\,K are reached for the dominant mode, consistent with limits determined by the measurement noise of our system. This indicates stabilization on the $10^{-12}$ m level and is the first demonstration of using WGM reso...

  15. Integrated External Aerodynamic and Underhood Thermal Analysis...

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

    External Aerodynamic and Underhood Thermal Analysis for Heavy Vehicles Integrated External Aerodynamic and Underhood Thermal Analysis for Heavy Vehicles 2012 DOE Hydrogen and Fuel...

  16. BIOMECHANICAL KIDNEY MODEL FOR PREDICTING TUMOR DISPLACEMENT IN THE PRESENCE OF EXTERNAL PRESSURE LOAD

    E-Print Network [OSTI]

    Hamarneh, Ghassan

    BIOMECHANICAL KIDNEY MODEL FOR PREDICTING TUMOR DISPLACEMENT IN THE PRESENCE OF EXTERNAL PRESSURE biomechanical model to simulate de- formations under additional external pressure load. A second CT scan that the biomechanical simula- tion improves by 29% the tumor localization. Index Terms-- Partial nephrectomy, image

  17. Overlap Fermion in External Gravity

    E-Print Network [OSTI]

    Hiroto So; Masashi Hayakawa; Hiroshi Suzuki

    2006-12-12

    On a lattice, we construct an overlap Dirac operator which describes the propagation of a Dirac fermion in external gravity. The local Lorentz symmetry is manifestly realized as a lattice gauge symmetry, while the general coordinate invariance is expected to be restored only in the continuum limit. The lattice index density in the presence of a gravitational field is calculated.

  18. A review of "Fate, Glory, and Love in Early Modern Gallery Decoration: Visualizing Supreme Power" by Margaretha Rossholm Lagerlöf 

    E-Print Network [OSTI]

    Kirch, Miriam Hall

    2015-01-01

    as it was in galleries, as an enveloping ensemble of structure, painting, sculpture, and frame, is the most difficult of the arts to describe in text. Any- thing so truly three-dimensional and even four-dimensional fights against being reduced to the flatness..., the sequential nature of writing and reading—and architecture usually loses that fight. It is greatly to Lagerlöf ’s credit that she nevertheless brings these places to thought- provoking life. Dániel Margócsy. Commercial Visions: Science, Trade, and Visual...

  19. Electricity Generation and Environmental Externalities: Case Studies

    Reports and Publications (EIA)

    1995-01-01

    Provides an overview of the economic foundation of externalities, the federal and state regulatory approaches, and case studies of the impacts of the externality policies adopted by three states.

  20. External Collaborations - Research - Cyclotron 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation Current HABFES OctoberEvan Racah Evan-5 BeamlineGE, Ford, UniversityExternal

  1. UNBC Library External Review 2012 Library Response

    E-Print Network [OSTI]

    Northern British Columbia, University of

    UNBC Library External Review 2012 Library Response November 2, 2012 An external review was conducted of the UNBC Library services in April 2012 by Dr. Vicki Williamson of University of Saskatchewan is available at https://library.unbc.ca/external- review/ . Below is the Library's planned followup

  2. The Astrobiology Web About Us Advertising Contact Us Comments Tuesday, October 18, 2005 Select a Site Go Home | Calendar -News -Gallery -Space Directory -Station Guide -Space Weather

    E-Print Network [OSTI]

    Arizona, University of

    Select a Site Go Home | Calendar - News - Gallery - Space Directory - Station Guide - Space Weather Mars and the life forms that may have lived on it, the really good places to look are rugged terrains like canyons and home in on geological and potential astrobiological 'sweet spots.'" The new paradigm is spearheaded

  3. The Whole Mars Catalog About Us Advertising Comments Tuesday, October 18, 2005 Select a Site Go Home | Calendar -News -Gallery -Space Directory -Station Guide -Space Weather

    E-Print Network [OSTI]

    Arizona, University of

    Go Home | Calendar - News - Gallery - Space Directory - Station Guide - Space Weather Mars News the history of a planet and the life forms that may have lived on it, the really good places to look greater opportunity and freedom to identify and home in on geological and potential astrobiological 'sweet

  4. In vivo dosimetry in external beam radiotherapy

    SciTech Connect (OSTI)

    Mijnheer, Ben [Department of Radiation Oncology, Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam 1066 CX (Netherlands); Beddar, Sam [Department of Radiation Physics, University of Texas MD Anderson Cancer Center, Houston, Texas 77030 (United States); Izewska, Joanna [Division of Human Health, International Atomic Energy Agency, Vienna 1400 (Austria); Reft, Chester [Department of Radiation and Cellular Oncology, University of Chicago Medical Center, Chicago, Illinois 60637 (United States)

    2013-07-15

    In vivo dosimetry (IVD) is in use in external beam radiotherapy (EBRT) to detect major errors, to assess clinically relevant differences between planned and delivered dose, to record dose received by individual patients, and to fulfill legal requirements. After discussing briefly the main characteristics of the most commonly applied IVD systems, the clinical experience of IVD during EBRT will be summarized. Advancement of the traditional aspects of in vivo dosimetry as well as the development of currently available and newly emerging noninterventional technologies are required for large-scale implementation of IVD in EBRT. These new technologies include the development of electronic portal imaging devices for 2D and 3D patient dosimetry during advanced treatment techniques, such as IMRT and VMAT, and the use of IVD in proton and ion radiotherapy by measuring the decay of radiation-induced radionuclides. In the final analysis, we will show in this Vision 20/20 paper that in addition to regulatory compliance and reimbursement issues, the rationale for in vivo measurements is to provide an accurate and independent verification of the overall treatment procedure. It will enable the identification of potential errors in dose calculation, data transfer, dose delivery, patient setup, and changes in patient anatomy. It is the authors' opinion that all treatments with curative intent should be verified through in vivo dose measurements in combination with pretreatment checks.

  5. Mixing at the external boundary of a submerged turbulent jet

    E-Print Network [OSTI]

    A. Eidelman; T. Elperin; N. Kleeorin; G. Hazak; I. Rogachevskii; O. Sadot; I. Sapir-Katiraie

    2009-05-11

    We study experimentally and theoretically mixing at the external boundary of a submerged turbulent jet. In the experimental study we use Particle Image Velocimetry and an Image Processing Technique based on the analysis of the intensity of the Mie scattering to determine the spatial distribution of tracer particles. An air jet is seeded with the incense smoke particles which are characterized by large Schmidt number and small Stokes number. We determine the spatial distributions of the jet fluid characterized by a high concentration of the particles and of the ambient fluid characterized by a low concentration of the tracer particles. In the data analysis we use two approaches, whereby one approach is based on the measured phase function for the study of the mixed state of two fluids. The other approach is based on the analysis of the two-point second-order correlation function of the particle number density fluctuations generated by tangling of the gradient of the mean particle number density by the turbulent velocity field. This gradient is formed at the external boundary of a submerged turbulent jet. We demonstrate that PDF of the phase function of a jet fluid penetrating into an external flow and the two-point second-order correlation function of the particle number density do not have universal scaling and cannot be described by a power-law function. The theoretical predictions made in this study are in a qualitative agreement with the obtained experimental results.

  6. Ion source with external RF antenna

    DOE Patents [OSTI]

    Leung, Ka-Ngo; Ji, Qing; Wilde, Stephen

    2005-12-13

    A radio frequency (RF) driven plasma ion source has an external RF antenna, i.e. the RF antenna is positioned outside the plasma generating chamber rather than inside. The RF antenna is typically formed of a small diameter metal tube coated with an insulator. An external RF antenna assembly is used to mount the external RF antenna to the ion source. The RF antenna tubing is wound around the external RF antenna assembly to form a coil. The external RF antenna assembly is formed of a material, e.g. quartz, which is essentially transparent to the RF waves. The external RF antenna assembly is attached to and forms a part of the plasma source chamber so that the RF waves emitted by the RF antenna enter into the inside of the plasma chamber and ionize a gas contained therein. The plasma ion source is typically a multi-cusp ion source.

  7. Hamiltonian surface charges using external sources

    E-Print Network [OSTI]

    Troessaert, Cedric

    2015-01-01

    In this work, we interpret part of the boundary conditions as external sources in order to solve the integrability problem present in the computation of surface charges associated to gauge symmetries in the hamiltonian formalism. We start by describing the hamiltonian structure of external symmetries preserving the action up to a transformation of the external sources of the theory. We then extend these results to the computation of surface charges for field theories with non-trivial boundary conditions.

  8. Visualization Gallery from the Computational Research Division at Lawrence Berkeley National Laboratory

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

    This excellent collection of visualization vignettes highlights research work done by the LBNL/NERSC Visualization Group and its collaborators from 1993 to the present. Images lead to technical explanations and project details, helping users to branch out to other related sources. Titles of the projects provide clues both to the imaging focus of the research and the scientific discipline for which the visualizations are intended. Only a few of the many titles/images/projects are listed here: 1) Hybrid Parallelism for Volume Rendering at Large Scale Analysis of Laser Wakefield Particle Acceleration Data; 2) Visualization of Microearthquake Data from Enhanced Geothermal Systems; 3) PointCloudXplore: Visualization and Analysis of 3D Gene Expression Data; 4) Visualization of Quantum Monte-Carlo simulations; 5) Global Cloud Resolving Models; 6) Visualization of large-scale GFDL/NOAA climate simulations; 7) Direct Numerical Simulation of Turbulent Flame Quenching by Fine Water Droplets; 8) Visualization of Magneto-rotational instability and turbulent angular momentum transport; 9) Sunfall: Visual Analytics for Astrophysics; 10) Fast Contour Descriptor Algorithm for Supernova Image Classification; 11) Supernova Recognition Using Support Vector Machines; 12) High Performance Visualization - Query-Driven Network Traffic Analysis; 13) Visualization of Magneto-rotational instability and turbulent angular momentum transport; 14) Life Sciences: Cell Division of Caulobacter Crescentus; 15) Electron Cloud Simulations.

  9. Review of Externality Valuation Lotte Schleisner

    E-Print Network [OSTI]

    Greenhouse gas R&D Programme "Full Fuel Cycle" 16 4.3 The New York Electricity Externality Study 17 4.4 US

  10. Universal Ownership: Why Environmental Externalities Matter to...

    Open Energy Info (EERE)

    Universal Ownership: Why Environmental Externalities Matter to Institutional Investors Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Universal Ownership: Why...

  11. Exporting Spatial Externalities Andrew J. Cassey

    E-Print Network [OSTI]

    Keywords: agglomeration, exports, distance, spatial econometrics,Russia Cassey: cassey@wsu.edu; 101 HulbertExporting Spatial Externalities Andrew J. Cassey School of Economic Sciences Washington State of externalities generated by neighbors' ex- ports on place-level exports, explicitly modeling the distance

  12. Internal Labor Markets Under External Market Pressures

    E-Print Network [OSTI]

    Lee, Jeong Yeon

    2015-03-01

    Through an empirical investigation of 11 Korean firms before and after the Asian financial crisis, the author examines the impact of increasing external market pressures on internal labor market (ILM) practices. In addition, ...

  13. Proceedings: National conference on environmental externalities

    SciTech Connect (OSTI)

    Not Available

    1990-12-31

    This report is the proceedings of the National Conference on Environmental Externalities. A environmental externality is the environmental impact of a process or a plant that society must endure. It is a social cost and is paid, but not by the company who produced it or the company`s customers who endure it. The main purpose of this report is to gather the many designs and ideas of how and why to internalize the externalities into the pricing systems of the public utility commissions, especially that of the electric utilities. Economic and sociological aspects of the internalization of these externalities are given in these proceedings. Individual papers are processed separately for databases. (MB)

  14. A study on the characteristics of externally

    E-Print Network [OSTI]

    Kim, Jongwon

    and decelerating due to the air film generated by the externally compressed air. Compared with oil bear- ings, air methods that adapted the point source assumption have been developed. Majumdar4 proposed a method

  15. Negative ion source with external RF antenna

    DOE Patents [OSTI]

    Leung, Ka-Ngo; Hahto, Sami K.; Hahto, Sari T.

    2007-02-13

    A radio frequency (RF) driven plasma ion source has an external RF antenna, i.e. the RF antenna is positioned outside the plasma generating chamber rather than inside. The RF antenna is typically formed of a small diameter metal tube coated with an insulator. An external RF antenna assembly is used to mount the external RF antenna to the ion source. The RF antenna tubing is wound around the external RF antenna assembly to form a coil. The external RF antenna assembly is formed of a material, e.g. quartz, which is essentially transparent to the RF waves. The external RF antenna assembly is attached to and forms a part of the plasma source chamber so that the RF waves emitted by the RF antenna enter into the inside of the plasma chamber and ionize a gas contained therein. The plasma ion source is typically a multi-cusp ion source. A converter can be included in the ion source to produce negative ions.

  16. External Examiner Handbook (Taught Programmes): Supplement on Sharing External Examiner Reports with Students, July 2014 Handbook on External Examining for Taught Programmes (Undergraduate and

    E-Print Network [OSTI]

    Painter, Kevin

    1 External Examiner Handbook (Taught Programmes): Supplement on Sharing External Examiner Reports) Supplement on Sharing External Examiner Reports with Students 1. Background: Requirement to Share External Examiner Reports with Students In the QAA's Report on the Transnational Education Review of the University

  17. Mixed-mode diesel HCCI with External Mixture Formation: Preliminary...

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

    Mixed-mode diesel HCCI with External Mixture Formation: Preliminary Results Mixed-mode diesel HCCI with External Mixture Formation: Preliminary Results 2003 DEER Conference...

  18. Diesel HCCI with External Mixture Preparation | Department of...

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

    with External Mixture Preparation Diesel HCCI with External Mixture Preparation 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: The Ohio State University...

  19. Impact of External Heat-shielding Techniques on Shell Surface...

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

    External Heat-shielding Techniques on Shell Surface Temperatures and Dynamic Shell Thermal Deformation of Diesel Engine Emission Control Systems Impact of External Heat-shielding...

  20. Benchmarking Outreach and Data Collection Techniques for External...

    Energy Savers [EERE]

    Benchmarking Outreach and Data Collection Techniques for External Portfolios Benchmarking Outreach and Data Collection Techniques for External Portfolios This presentation contains...

  1. External-field-free magnetic biosensor

    SciTech Connect (OSTI)

    Li, Yuanpeng; Wang, Yi; Klein, Todd; Wang, Jian-Ping, E-mail: jpwang@umn.edu [Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, Minnesota 55455 (United States)

    2014-03-24

    In this paper, we report a magnetic nanoparticle (MNP) detection scheme without the presence of any external magnetic field. The proposed magnetic sensor uses a patterned groove structure within the sensor so that no external magnetic field is needed to magnetize the MNPs. An example is given based on a giant magnetoresistance (GMR) sensing device with a spin valve structure. For this structure, the detection of MNPs located inside the groove and near the free layer is demonstrated under no external magnetic field. Micromagnetic simulations are performed to calculate the signal to noise level of this detection scheme. A maximum signal to noise ratio (SNR) of 18.6?dB from one iron oxide magnetic nanoparticle with 8?nm radius is achieved. As proof of concept, this external-field-free GMR sensor with groove structure of 200?nm?×?200?nm is fabricated using a photo and an electron beam integrated lithography process. Using this sensor, the feasibility demonstration of the detection SNR of 9.3?dB is achieved for 30??l magnetic nanoparticles suspension (30?nm iron oxide particles, 1?mg/ml). This proposed external-field-free sensor structure is not limited to GMR devices and could be applicable to other magnetic biosensing devices.

  2. In August, the Office of Research and External Support, the Office of Academic Affairs, and Helmke Library partnered to purchase software to create an institutional repository at IPFW.

    E-Print Network [OSTI]

    Hamburger, Peter

    In August, the Office of Research and External Support, the Office of Academic Affairs, and Helmke, and produce an image. Mining our dictionaries, thesauri, and the creative minds within University Relations

  3. Crystal growth under external electric fields

    SciTech Connect (OSTI)

    Uda, Satoshi; Koizumi, Haruhiko; Nozawa, Jun; Fujiwara, Kozo

    2014-10-06

    This is a review article concerning the crystal growth under external electric fields that has been studied in our lab for the past 10 years. An external field is applied electrostatically either through an electrically insulating phase or a direct injection of an electric current to the solid-interface-liquid. The former changes the chemical potential of both solid and liquid and controls the phase relationship while the latter modifies the transport and partitioning of ionic solutes in the oxide melt during crystallization and changes the solute distribution in the crystal.

  4. Benchmarking Outreach and Data Collection Techniques for External Portfolios

    Broader source: Energy.gov [DOE]

    This presentation contains information on Benchmarking Outreach and Data Collection Techniques for External Portfolios.

  5. External noise yields a What template?

    E-Print Network [OSTI]

    Klein, Stanley

    External noise yields a surprise: What template? Stanley Klein, Dennis Levi, Suko Toyofuku Vision Science University of California, Berkeley #12;Overview Detection of patterns in noise Why noise masking is a powerful technique The Lu-Dosher framework: useful black boxes Graham-Nachmias experiment in noise (detect

  6. Dirac oscillator in an external magnetic field

    E-Print Network [OSTI]

    Bhabani Prasad Mandal; Shweta Verma

    2009-12-19

    We show that 2+1 dimensional Dirac oscillators in an external magnetic field is mapped onto the same with reduced angular frequency in absence of magnetic field. This can be used to study the atomic transitions in a radiation field. Relativistic Landau levels are constructed explicitly. Several interesting features of this system are discussed.

  7. Capital controls and external debt term structure 

    E-Print Network [OSTI]

    Al Zein, Eza Ghassan

    2005-11-01

    of date- and maturity-specific reserve requirements on the maturity structure of external debt? Can they prevent a bank run? I develop a simple Diamond-Dybvig-type model with three dates. In the low income countries, banks arise endogenously. There are two...

  8. Research on External Power Supplies Will Save

    E-Print Network [OSTI]

    in the development of subsequent energy policies. #12;China, Australia, Canada, Brazil and several EuropeanResearch on External Power Supplies Will Save Californians Millions Energy Efficiency Research Office PIER Buildings Energy End-use Efficiency Research Program www.energy

  9. Heron isosceles with integral external radii

    E-Print Network [OSTI]

    Konstantine Zelator

    2008-04-29

    Each triangle has three exterior or external circles tangential to the three straight lines containing the three sides of the triangle.Among the preliminaries in this paper, is deriving formulas for the radii of the three exterior circles in terms of the triangle's sidelengths. After that we focus on Heron triangles. Heron triangles are known in the literature as triangles with integer sidelengths and integral area.Pythagorean triangles are examples of Heron triangles. In the first part of the paper, we parametrically describe all Heron isosceles triangles. In the second part, we parametrically(in terms of three independent parameters) describe the subfamily which consists of all Heron isosceles triangles which also have integral external radii. We provide numerical examples and tables.

  10. Fermilab Art Gallery

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

    Biological Impulses: Beverly Kedzior and Yvette Kaiser Smith Artist Statement by Beverly Kedzior This body of work displays the constructs of an invented infinite space, as...

  11. NIMROD Visualizations Plot Gallery

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

    Sovinec, C. R. [Nimrod Team

    NIMROD solves the extended magnetohydrodynamic equations using: 1) Spectral finite element discretization in two dimensions, 2) Finite Fourier series in the third dimension, 3) Semi-implicit and implicit temporal discretization for the range of temporal scales found in fusion experiments, 4) Simulation particles for kinetic effects from a minority species of energetic ions, and 5) Integro-differential methods for kinetic effects from free-streaming. [copied from the NIMROD home page

  12. Fermilab Art Gallery

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

    Linda Conlee-Johnson I have evolved from a basketry artist who wove sculptural art-vessels using traditional basketry materials to an artist experimenting with the weaving...

  13. Fermilab Art Gallery

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

    prompted by the emergence of a strong ruling class. A distinct line of pottery vessels was established which were intended for use in ceremony and ritual. This marked a...

  14. Fermilab Art Gallery

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

    Kathleen Newman - Artist Statement The tradition of plein air painting began with the invention of the metal tube paint container and for the first time artists were able to bring...

  15. Fermilab Art Gallery

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

    probability of interpretation for centuries. Through the science education of fluid mechanics, I am blessed with the gift to merge my education with my heritage background to...

  16. Fermilab Art Gallery

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

    communication begins with the photographer's inner self. It continues through the mechanics of photography, which act as transmitters of his thoughts, feelings and vision to...

  17. Fermilab Art Gallery

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

    found in the simplest piece of fruit or a vegetable. I believe good art like good food are beautiful things that nourish. About the taxis and traffic paintings, I feel I'm...

  18. WIPP - Photo Gallery

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDidDevelopmentat LENA|UpcomingVisit UsNews This

  19. SAGE Photo Gallery

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust, High-Throughput Analysis of Protein StructuresMaintenance / APRobertSummerAwardsPastPhoto

  20. Manhattan Project: Photo Gallery

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfate Reducing(Journalspectroscopy ofArticle)SciTechNorris Bradbury,Cubes of uraniumY-12

  1. Google Earth Gallery

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation Current HABFESOpportunitiesNERSC Getting Started at14 atGolden

  2. Fermilab Art Gallery

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverse (Journal Article) | SciTech Connect Large AreaFermilab Accelerator

  3. Fermilab Art Gallery

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverse (Journal Article) | SciTech Connect Large AreaFermilab

  4. Fermilab Art Gallery

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverse (Journal Article) | SciTech Connect Large AreaFermilab Contact Us Current

  5. Fermilab Art Gallery

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverse (Journal Article) | SciTech Connect Large AreaFermilab Contact Us

  6. Pin loosening in external skeletal fixation 

    E-Print Network [OSTI]

    Vittal, Bamini

    1993-01-01

    should maximize the axial pull out strength, or holding power, once inserted. Threaded pins dramatically improve holding power over nonthreaded pins. This is particularly true after the pins are subjected to 8 weeks of fracture/osteotomy stabilization... of the fracture, the accuracy of reduction, and the amount of physiologic loading. Comparative experiments using a canine tibial osteotomy model have been performed to study the effects of mechanical environment on healing of fractures stabilized by external...

  7. Markets, herding and response to external information

    E-Print Network [OSTI]

    Carro, Adrián; Miguel, Maxi San

    2015-01-01

    We focus on the influence of external sources of information upon financial markets. In particular, we develop a stochastic agent-based market model characterized by a certain herding behavior as well as allowing traders to be influenced by an external dynamic signal of information. This signal can be interpreted as a time-varying advertising, public perception or rumor, in favor or against one of two possible trading behaviors, thus breaking the symmetry of the system and acting as a continuously varying exogenous shock. As an illustration, we use a well-known German Indicator of Economic Sentiment as information input and compare our results with Germany's leading stock market index, the DAX, in order to calibrate some of the model parameters. We study the conditions for the ensemble of agents to more accurately follow the information input signal. The response of the system to the external information is maximal for an intermediate range of values of a market parameter, suggesting the existence of three di...

  8. Hyperspectral Microscopy of Explosives Particles Using an External Cavity Quantum Cascade Laser

    SciTech Connect (OSTI)

    Phillips, Mark C.; Bernacki, Bruce E.

    2012-12-26

    Using infrared hyperspectral imaging, we demonstrate microscopy of small particles of the explosives compounds RDX, tetryl, and PETN with near diffraction-limited performance. The custom microscope apparatus includes an external cavity quantum cascade laser illuminator scanned over its tuning range of 9.13-10.53 µm in four seconds, coupled with a microbolometer focal plane array to record infrared transmission images. We use the hyperspectral microscopy technique to study the infrared absorption spectra of individual explosives particles, and demonstrate sub-nanogram detection limits.

  9. Numerical and experimental study of a high-power narrow-line phase-locked tapered lasers array in external cavity

    E-Print Network [OSTI]

    Boyer, Edmond

    of their beams by phase locking between the emitters. This has already been investigated successfully with CO2 benefit of the self-imaging Talbot properties inside an external cavity to induce the coherent emission describes the self-imaging properties of a periodic coherent field [3]. It is a pure Fresnel diffractive

  10. Project Charter CALS External Relations Advancement Planning: Alumni

    E-Print Network [OSTI]

    Herrman WALSAA Board Tara Talbot CALS BOV Kara Luedtke External Relations Megan O'Rourke UP&S, Career

  11. Past experiences with automotive external combustion engines

    SciTech Connect (OSTI)

    Amann, C.A.

    1999-07-01

    GMR (General Motors Research Laboratories, now GM R and D Center) has a history of improving the internal combustion engine, especially as it relates to automotive use. During the quarter century from 1950--75, considerable effort was devoted to evaluating alternative powerplants based on thermodynamic cycles different from those on which the established spark-ignition and diesel engines are founded. Two of these, the steam engine and the Stirling engine, incorporated external combustion. Research on those two alternatives is reviewed. Both were judged to fall short of current needs for commercial success as prime movers for conventional automotive vehicles.

  12. Help:External searches | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'SHeavy ElectricalsFTLTechnology Srl Jump to:source History ViewExternal

  13. External Advisory Committee | Argonne National Laboratory

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submitKansasCommunitiesof Energy8)highlightsNew PhaseExposureExternal Advisory

  14. An Exhibition Review, with a Gallery of Selected Images of "Dutch New York Between East and West: The World of Margrieta van Varick" 

    E-Print Network [OSTI]

    Mulvihill, Maureen E.

    2010-01-01

    . Organized by The Bard Graduate Center in collaboration with the New-York Historical Society. Curators: Marybeth De Filippis and Deborah L. Krohn. Exhibition Designer, Chief Preparator, Photographer: Ian Sullivan. Exhibition catalogue: Dutch New York..., Associate Professor, Coordinator for History and Theory of Museums, Bard Graduate Center, New York. The show?s impres- sive catalogue (399 pages), an essential reference source for a broad range of researchers, was co-edited by Deborah L. Krohn and Peter...

  15. Two-dimensional calculation of eddy currents on external conducting walls induced by low-n external modes

    E-Print Network [OSTI]

    Two-dimensional calculation of eddy currents on external conducting walls induced by low-n external 1997; accepted 8 December 1997 The results of two-dimensional calculations of eddy currents induced on external conducting walls surrounding a tokamak are reported. The computed eddy currents are generated

  16. Multiaxial stress concentration in an externally pressurized cylinder with an external circumferential groove

    SciTech Connect (OSTI)

    Tipton, S.M.; Sorem, J.R. Jr. [Univ. of Tulsa, OK (United States). Mechanical Engineering Dept.; Hickey, K.A.; Rawson, M.S. [Baker Oil Tools, Broken Arrow, OK (United States)

    1995-11-01

    Downhole oil tools are often comprised of cylindrical sections with external, circumferential stress concentrations. Frequently, it is necessary to design locally thin walls that are just capable of sustaining rare applications of severe external pressure with little or moderate amounts of yielding. Here, a thick-walled cylindrical specimen containing an external circumferential groove was subjected to external pressure. To investigate the maximum pressure sustainable by the reduced wall thickness, strain gage measurements were taken during external pressurization tests. For comparison to experimental results, an elastic-plastic notch stress-strain analysis was conducted based on Neuber`s rule. The analysis utilized multiaxial elastic finite element results along with elastic-plastic tensile test data for the cylinder material. It is demonstrated that the boundary conditions used to model the specimen had a substantial effect on the finite element results, even though the boundary was somewhat removed from the region of concentrated stress. Biaxial strain measurements are presented versus pressure over the elastic and into the plastic regime, and deformation plasticity theory was used to compute stress and radial strain components corresponding to measured strains. It is demonstrated that in order to apply a multiaxial Neuber`s rule to accurately estimate the elastic-plastic stress-strain response (using elastic stress concentration information and elastic-plastic material data), it is necessary to utilize an experimental observation that the ratio of the hoop to radial strain remains invariant from the elastic to the elastic-plastic regime. This differs from published assumptions about invariant hoop-to-axial strain ratios based on analysis of circumferentially grooved solid shafts. The predictions are accurate for moderate plastic strains, but correlation breaks down for bulk plastic deformation.

  17. External Affairs Phone: (646) 317-7401

    E-Print Network [OSTI]

    Chen, Tsuhan

    resonance energy transfer (FRET) efficiency reflect sub-nanometer (nm) to nanometer scale transport domain). Real-time measurements of "elevator-like" motions of individual transport domains within Glt://images.med.cornell.edu/body/dean /2015/02_04_15_GLtphLG.jpg) Static architecture of the glutamate transporter homologue, GltPh, (left

  18. 25/08/2010 14:33In pictures: The week in wildlife | Environment | guardian.co.uk Page 2 of 3http://www.guardian.co.uk/environment/gallery/2010/aug/20/week-in-wildlife#/?picture=365949451&index=1

    E-Print Network [OSTI]

    West, Stuart

    25/08/2010 14:33In pictures: The week in wildlife | Environment | guardian.co.uk Page 2 of 3http://www.guardian.co.uk/environment/gallery/2010/aug/20/week-in-wildlife#/?picture=365949451&index=1 A white-fronted bee-eater, a species with very crocodile 8 Apr 2009 UK butterfly numbers plunge after worst year Gallery (16 pictures): The week

  19. Gaussian fidelity distorted by external fields

    E-Print Network [OSTI]

    Santos, Jonas F G

    2015-01-01

    Gaussian state decoherence aspects due to interacting magnetic-like and gravitational fields are quantified through the quantum fidelity and Shannon entropy in the scope of the phase-space representation of elementary quantum systems. For Gaussian Wigner functions describing harmonic oscillator states, an interacting external field destroys the quantum fidelity and introduces a quantum beating behavior. Likewise, it introduces harmonic profiles for free particle systems. Some aspects of quantum decoherence for the quantum harmonic oscillator and for the free particle limit are also quantified through the Shannon entropy. For the gravitational quantum well, the effect of a magnetic-like field on the quantum fidelity is suppressed by the linear term of the gravitational potential. To conclude, one identifies a fine formal connection of the quantum decoherence aspects discussed here with the noncommutative quantum mechanics.

  20. Gaussian fidelity distorted by external fields

    E-Print Network [OSTI]

    Jonas F. G. Santos; Alex E. Bernardini

    2015-10-10

    Gaussian state decoherence aspects due to interacting magnetic-like and gravitational fields are quantified through the quantum fidelity and Shannon entropy in the scope of the phase-space representation of elementary quantum systems. For Gaussian Wigner functions describing harmonic oscillator states, an interacting external field destroys the quantum fidelity and introduces a quantum beating behavior. Likewise, it introduces harmonic profiles for free particle systems. Some aspects of quantum decoherence for the quantum harmonic oscillator and for the free particle limit are also quantified through the Shannon entropy. For the gravitational quantum well, the effect of a magnetic-like field on the quantum fidelity is suppressed by the linear term of the gravitational potential. To conclude, one identifies a fine formal connection of the quantum decoherence aspects discussed here with the noncommutative quantum mechanics.

  1. Secondary emission electron gun using external primaries

    DOE Patents [OSTI]

    Srinivasan-Rao, Triveni (Shoreham, NY); Ben-Zvi, Ilan (Setauket, NY); Kewisch, Jorg (Wading River, NY); Chang, Xiangyun (Middle Island, NY)

    2007-06-05

    An electron gun for generating an electron beam is provided, which includes a secondary emitter. The secondary emitter includes a non-contaminating negative-electron-affinity (NEA) material and emitting surface. The gun includes an accelerating region which accelerates the secondaries from the emitting surface. The secondaries are emitted in response to a primary beam generated external to the accelerating region. The accelerating region may include a superconducting radio frequency (RF) cavity, and the gun may be operated in a continuous wave (CW) mode. The secondary emitter includes hydrogenated diamond. A uniform electrically conductive layer is superposed on the emitter to replenish the extracted current, preventing charging of the emitter. An encapsulated secondary emission enhanced cathode device, useful in a superconducting RF cavity, includes a housing for maintaining vacuum, a cathode, e.g., a photocathode, and the non-contaminating NEA secondary emitter with the uniform electrically conductive layer superposed thereon.

  2. Secondary emission electron gun using external primaries

    DOE Patents [OSTI]

    Srinivasan-Rao, Triveni (Shoreham, NY); Ben-Zvi, Ilan (Setauket, NY)

    2009-10-13

    An electron gun for generating an electron beam is provided, which includes a secondary emitter. The secondary emitter includes a non-contaminating negative-electron-affinity (NEA) material and emitting surface. The gun includes an accelerating region which accelerates the secondaries from the emitting surface. The secondaries are emitted in response to a primary beam generated external to the accelerating region. The accelerating region may include a superconducting radio frequency (RF) cavity, and the gun may be operated in a continuous wave (CW) mode. The secondary emitter includes hydrogenated diamond. A uniform electrically conductive layer is superposed on the emitter to replenish the extracted current, preventing charging of the emitter. An encapsulated secondary emission enhanced cathode device, useful in a superconducting RF cavity, includes a housing for maintaining vacuum, a cathode, e.g., a photocathode, and the non-contaminating NEA secondary emitter with the uniform electrically conductive layer superposed thereon.

  3. Externally Dispersed Interferometry for Precision Radial Velocimetry

    SciTech Connect (OSTI)

    Erskine, D J; Muterspaugh, M W; Edelstein, J; Lloyd, J; Herter, T; Feuerstein, W M; Muirhead, P; Wishnow, E

    2007-03-27

    Externally Dispersed Interferometry (EDI) is the series combination of a fixed-delay field-widened Michelson interferometer with a dispersive spectrograph. This combination boosts the spectrograph performance for both Doppler velocimetry and high resolution spectroscopy. The interferometer creates a periodic spectral comb that multiplies against the input spectrum to create moire fringes, which are recorded in combination with the regular spectrum. The moire pattern shifts in phase in response to a Doppler shift. Moire patterns are broader than the underlying spectral features and more easily survive spectrograph blurring and common distortions. Thus, the EDI technique allows lower resolution spectrographs having relaxed optical tolerances (and therefore higher throughput) to return high precision velocity measurements, which otherwise would be imprecise for the spectrograph alone.

  4. Case histories of external microbiologically influenced corrosion

    SciTech Connect (OSTI)

    Pikas, J.L.

    1997-05-01

    External microbiologically influenced corrosion (MIC) is a serious dilemma in the pipeline industry. Even today, it has not been recognized as such because it has been primarily mistaken for galvanic corrosion. Due to the type of coating materials used in the past, the cleaning process or lack of it, and application methods used, all coating systems have the propensity to develop defects and pinholes where disbondment and this type of microbial corrosion could occur. In addition, the pipeline may or may not have had cathodic protection initially and/or consistently applied. Given these factors and the interaction of bacteria from the soil, moisture availability, degree of cathodic protection, and temperature of the pipeline, this paper will discuss the role that microbes play in the disbondment process, thus resulting in corrosion of an underground pipeline. Several case histories, laboratory testing results, and field findings will be presented.

  5. Low-Cost Alternative External Rotation Shoulder Brace and Review of Treatment in Acute Shoulder Dislocations

    E-Print Network [OSTI]

    Lacy, Kyle; Cooke, Chris; Cooke, Pat; Schupbach, Justin; Vaidya, Rahul

    2015-01-01

    after Video. Low-cost alternative external rotation shoulder1 : January 2015 Lacy et al. Alternative External RotationMedicine Lacy et al. Alternative External Rotation Shoulder

  6. Test Images

    E-Print Network [OSTI]

    Test Images. I hope to have a set of test images for the course soon. Some images are available now; some will have to wait until I can find another 100-200

  7. Brushed permanent magnet DC MLC motor operation in an external magnetic field

    SciTech Connect (OSTI)

    Yun, J.; St Aubin, J.; Rathee, S.; Fallone, B. G.

    2010-05-15

    Purpose: Linac-MR systems for real-time image-guided radiotherapy will utilize the multileaf collimators (MLCs) to perform conformal radiotherapy and tumor tracking. The MLCs would be exposed to the external fringe magnetic fields of the linac-MR hybrid systems. Therefore, an experimental investigation of the effect of an external magnetic field on the brushed permanent magnet DC motors used in some MLC systems was performed. Methods: The changes in motor speed and current were measured for varying external magnetic field strengths up to 2000 G generated by an EEV electromagnet. These changes in motor characteristics were measured for three orientations of the motor in the external magnetic field, mimicking changes in motor orientations due to installation and/or collimator rotations. In addition, the functionality of the associated magnetic motor encoder was tested. The tested motors are used with the Varian 120 leaf Millennium MLC (Maxon Motor half leaf and full leaf motors) and the Varian 52 leaf MKII MLC (MicroMo Electronics leaf motor) including a carriage motor (MicroMo Electronics). Results: In most cases, the magnetic encoder of the motors failed prior to any damage to the gearbox or the permanent magnet motor itself. This sets an upper limit of the external magnetic field strength on the motor function. The measured limits of the external magnetic fields were found to vary by the motor type. The leaf motor used with a Varian 52 leaf MKII MLC system tolerated up to 450{+-}10 G. The carriage motor tolerated up to 2000{+-}10 G field. The motors used with the Varian 120 leaf Millennium MLC system were found to tolerate a maximum of 600{+-}10 G. Conclusions: The current Varian MLC system motors can be used for real-time image-guided radiotherapy coupled to a linac-MR system, provided the fringe magnetic fields at their locations are below the determined tolerance levels. With the fringe magnetic fields of linac-MR systems expected to be larger than the tolerance levels determined, some form of magnetic shielding would be required.

  8. Energy Conservation Standards for Battery Chargers and External...

    Energy Savers [EERE]

    Chargers and External Power Supplies; Proposed Rule Making - Ex Parte Communication Apple Inc. met with DOE to discuss the notice of proposed rule making the Department sent...

  9. EM Announces New Director of Office of External Affairs

    Broader source: Energy.gov [DOE]

    WASHINGTON, D.C. – EM has announced that Paul Seidler has joined EM as the Director of the Office of External Affairs.

  10. NA EA - Associate Administrator for External Affairs | National...

    National Nuclear Security Administration (NNSA)

    Us Our Operations Management and Budget Office of Civil Rights Workforce Statistics NA EA - Associate Administrator for External Affairs NA EA - Associate...

  11. Treatment of External Levels in Neutron Resonance Fitting: Application...

    Office of Scientific and Technical Information (OSTI)

    techniques are reviewed. They describe the contribution of external levels to the R matrix concisely in terms of average resonance parameters (strength function, effective...

  12. ORNL/TM-2001/164 Prediction of External Corrosion

    E-Print Network [OSTI]

    ORNL/TM-2001/164 Prediction of External Corrosion for Steel Cylinders--2001 Report Rick Schmoyer States Government or any agency thereof. #12;ORNL/TM-2001/164 PREDICTION OF EXTERNAL CORROSION FOR STEEL STORAGE CYLINDERS--2001 REPORT Rick Schmoyer and B. F. Lyon Date Published: September 2001 Prepared for U

  13. WHIRLING OF A CANTILEVER ELASTIC SHAFT SUBJECTED TO EXTERNAL PRESSURE

    E-Print Network [OSTI]

    Newland, David E.

    11 WHIRLING OF A CANTILEVER ELASTIC SHAFT SUBJECTED TO EXTERNAL PRESSURE D. E. Newland* This paper is a theoretical study of the whirling of a cantilever elastic shaft subjected to external pressure. The whirling speeds are shown to depend on the variation of pressure and area along the shaft and the lowest whirling

  14. Automated imaging system for single molecules

    DOE Patents [OSTI]

    Schwartz, David Charles; Runnheim, Rodney; Forrest, Daniel

    2012-09-18

    There is provided a high throughput automated single molecule image collection and processing system that requires minimal initial user input. The unique features embodied in the present disclosure allow automated collection and initial processing of optical images of single molecules and their assemblies. Correct focus may be automatically maintained while images are collected. Uneven illumination in fluorescence microscopy is accounted for, and an overall robust imaging operation is provided yielding individual images prepared for further processing in external systems. Embodiments described herein are useful in studies of any macromolecules such as DNA, RNA, peptides and proteins. The automated image collection and processing system and method of same may be implemented and deployed over a computer network, and may be ergonomically optimized to facilitate user interaction.

  15. Estimating Externalities of Natural Gas Fuel Cycles, Report 4

    SciTech Connect (OSTI)

    Barnthouse, L.W.; Cada, G.F.; Cheng, M.-D.; Easterly, C.E.; Kroodsma, R.L.; Lee, R.; Shriner, D.S.; Tolbert, V.R.; Turner, R.S.

    1998-01-01

    This report describes methods for estimating the external costs (and possibly benefits) to human health and the environment that result from natural gas fuel cycles. Although the concept of externalities is far from simple or precise, it generally refers to effects on individuals' well being, that result from a production or market activity in which the individuals do not participate, or are not fully compensated. In the past two years, the methodological approach that this report describes has quickly become a worldwide standard for estimating externalities of fuel cycles. The approach is generally applicable to any fuel cycle in which a resource, such as coal, hydro, or biomass, is used to generate electric power. This particular report focuses on the production activities, pollution, and impacts when natural gas is used to generate electric power. In the 1990s, natural gas technologies have become, in many countries, the least expensive to build and operate. The scope of this report is on how to estimate the value of externalities--where value is defined as individuals' willingness to pay for beneficial effects, or to avoid undesirable ones. This report is about the methodologies to estimate these externalities, not about how to internalize them through regulations or other public policies. Notwithstanding this limit in scope, consideration of externalities can not be done without considering regulatory, insurance, and other considerations because these institutional factors affect whether costs (and benefits) are in fact external, or whether they are already somehow internalized within the electric power market. Although this report considers such factors to some extent, much analysis yet remains to assess the extent to which estimated costs are indeed external. This report is one of a series of reports on estimating the externalities of fuel cycles. The other reports are on the coal, oil, biomass, hydro, and nuclear fuel cycles, and on general methodology.

  16. Image alignment

    DOE Patents [OSTI]

    Dowell, Larry Jonathan

    2014-04-22

    Disclosed is a method and device for aligning at least two digital images. An embodiment may use frequency-domain transforms of small tiles created from each image to identify substantially similar, "distinguishing" features within each of the images, and then align the images together based on the location of the distinguishing features. To accomplish this, an embodiment may create equal sized tile sub-images for each image. A "key" for each tile may be created by performing a frequency-domain transform calculation on each tile. A information-distance difference between each possible pair of tiles on each image may be calculated to identify distinguishing features. From analysis of the information-distance differences of the pairs of tiles, a subset of tiles with high discrimination metrics in relation to other tiles may be located for each image. The subset of distinguishing tiles for each image may then be compared to locate tiles with substantially similar keys and/or information-distance metrics to other tiles of other images. Once similar tiles are located for each image, the images may be aligned in relation to the identified similar tiles.

  17. Integrated reservoir characterization: Improvement in heterogeneities stochastic modelling by integration of additional external constraints

    SciTech Connect (OSTI)

    Doligez, B.; Eschard, R.; Geffroy, F.

    1997-08-01

    The classical approach to construct reservoir models is to start with a fine scale geological model which is informed with petrophysical properties. Then scaling-up techniques allow to obtain a reservoir model which is compatible with the fluid flow simulators. Geostatistical modelling techniques are widely used to build the geological models before scaling-up. These methods provide equiprobable images of the area under investigation, which honor the well data, and which variability is the same than the variability computed from the data. At an appraisal phase, when few data are available, or when the wells are insufficient to describe all the heterogeneities and the behavior of the field, additional constraints are needed to obtain a more realistic geological model. For example, seismic data or stratigraphic models can provide average reservoir information with an excellent areal coverage, but with a poor vertical resolution. New advances in modelisation techniques allow now to integrate this type of additional external information in order to constrain the simulations. In particular, 2D or 3D seismic derived information grids, or sand-shale ratios maps coming from stratigraphic models can be used as external drifts to compute the geological image of the reservoir at the fine scale. Examples are presented to illustrate the use of these new tools, their impact on the final reservoir model, and their sensitivity to some key parameters.

  18. China's Coal: Demand, Constraints, and Externalities

    SciTech Connect (OSTI)

    Aden, Nathaniel; Fridley, David; Zheng, Nina

    2009-07-01

    This study analyzes China's coal industry by focusing on four related areas. First, data are reviewed to identify the major drivers of historical and future coal demand. Second, resource constraints and transport bottlenecks are analyzed to evaluate demand and growth scenarios. The third area assesses the physical requirements of substituting coal demand growth with other primary energy forms. Finally, the study examines the carbon- and environmental implications of China's past and future coal consumption. There are three sections that address these areas by identifying particular characteristics of China's coal industry, quantifying factors driving demand, and analyzing supply scenarios: (1) reviews the range of Chinese and international estimates of remaining coal reserves and resources as well as key characteristics of China's coal industry including historical production, resource requirements, and prices; (2) quantifies the largest drivers of coal usage to produce a bottom-up reference projection of 2025 coal demand; and (3) analyzes coal supply constraints, substitution options, and environmental externalities. Finally, the last section presents conclusions on the role of coal in China's ongoing energy and economic development. China has been, is, and will continue to be a coal-powered economy. In 2007 Chinese coal production contained more energy than total Middle Eastern oil production. The rapid growth of coal demand after 2001 created supply strains and bottlenecks that raise questions about sustainability. Urbanization, heavy industrial growth, and increasing per-capita income are the primary interrelated drivers of rising coal usage. In 2007, the power sector, iron and steel, and cement production accounted for 66% of coal consumption. Power generation is becoming more efficient, but even extensive roll-out of the highest efficiency units would save only 14% of projected 2025 coal demand for the power sector. A new wedge of future coal consumption is likely to come from the burgeoning coal-liquefaction and chemicals industries. If coal to chemicals capacity reaches 70 million tonnes and coal-to-liquids capacity reaches 60 million tonnes, coal feedstock requirements would add an additional 450 million tonnes by 2025. Even with more efficient growth among these drivers, China's annual coal demand is expected to reach 3.9 to 4.3 billion tonnes by 2025. Central government support for nuclear and renewable energy has not reversed China's growing dependence on coal for primary energy. Substitution is a matter of scale: offsetting one year of recent coal demand growth of 200 million tonnes would require 107 billion cubic meters of natural gas (compared to 2007 growth of 13 BCM), 48 GW of nuclear (compared to 2007 growth of 2 GW), or 86 GW of hydropower capacity (compared to 2007 growth of 16 GW). Ongoing dependence on coal reduces China's ability to mitigate carbon dioxide emissions growth. If coal demand remains on a high growth path, carbon dioxide emissions from coal combustion alone would exceed total US energy-related carbon emissions by 2010. Within China's coal-dominated energy system, domestic transportation has emerged as the largest bottleneck for coal industry growth and is likely to remain a constraint to further expansion. China has a low proportion of high-quality reserves, but is producing its best coal first. Declining quality will further strain production and transport capacity. Furthermore, transporting coal to users has overloaded the train system and dramatically increased truck use, raising transportation oil demand. Growing international imports have helped to offset domestic transport bottlenecks. In the long term, import demand is likely to exceed 200 million tonnes by 2025, significantly impacting regional markets.

  19. Externalizing and interpreting autonomic arousal in people diagnosed with autism

    E-Print Network [OSTI]

    Lee, Jackie Chia-Hsun

    2011-01-01

    This research explores how externalization of physiological states helps to provide an awareness of hidden stressors through a home-based study, a lab-based study, and a school-based study in order to facilitate social ...

  20. Oil Prices, External Income, and Growth: Lessons from Jordan

    E-Print Network [OSTI]

    Mohaddes, Kamiar; Raissi, Mehdi

    2011-12-08

    This paper extends the long-run growth model of Esfahani et al. (2009) to a labour exporting country that receives large inflows of external income - the sum of remittances, FDI and general government transfers - from major oil exporting economies...

  1. PRESSURIZATION OF FIXED ROOF STORAGE TANKS DUE TO EXTERNAL FIRES

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    PRESSURIZATION OF FIXED ROOF STORAGE TANKS DUE TO EXTERNAL FIRES Fabien FouiHen, INERIS, Parc initiating event of the fire ball observed. In concrete terms, when a fixed roof storage tank is surrounded

  2. DOE Notice of Proposed Rulemaking to Amend the External Power...

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

    DOE to discuss the Notice of Proposed Rulemaking to Amend the External Power Supply Test Procedure. EPS TP Ex Parte MemoApple12-19-14 More Documents & Publications...

  3. Independent External Evaluation of The Columbia Basin Water Transactions Program

    E-Print Network [OSTI]

    Independent External Evaluation of The Columbia Basin Water Transactions Program (2003 of Water Transactions...............................................32 Program Administration......................................................................................................45 Annex 1: Evaluation Matrix Annex 2: Limiting Factors to Water Transactions in the Columbia Basin

  4. Estimating Externalities of Coal Fuel Cycles, Report 3

    SciTech Connect (OSTI)

    Barnthouse, L.W.; Cada, G.F.; Cheng, M.-D.; Easterly, C.E.; Kroodsma, R.L.; Lee, R.; Shriner, D.S.; Tolbert, V.R.; Turner, R.S.

    1994-09-01

    The agreement between the US DOE and the EC established the specific objectives of the study: (a) to develop a methodological framework that uses existing data and models to quantify the external costs and benefits of energy; (b) to demonstrate the application of the framework to estimate the externalities of the coal, biomass, oil, natural gas, hydro, nuclear, photovoltaic, and wind fuel cycles (by agreement with the EC, the US addressed the first six of these); and (c) to identify major gaps in the availability of information to quantify impacts, damages, benefits, and externalities of fuel cycles; and to suggest priorities for future research. The main consideration in defining these objectives was a desire to have more information about externalities, and a better method for estimating them.

  5. Mending fractured spaces : external legibility and seamlessness in interface design

    E-Print Network [OSTI]

    Zigelbaum, Jamie B

    2008-01-01

    This thesis presents External Legibility: a property of user interfaces that affects the ability of non-participating observers to understand the context of a user's actions. Claims of its value are supported with arguments ...

  6. Improving the external extraction efficiency of organic light emitting devices

    E-Print Network [OSTI]

    Ho, John C., 1980-

    2004-01-01

    Over the last decade Organic Light Emitting Device (OLED) technology has matured, progressing to the point where state-of-the-art OLEDs can demonstrate external extraction efficiencies that surpass those of fluorescent ...

  7. COLLABORATION INNOVATION INTEROPERABILITY DISCOVERY PARTNERSHIP External Research Division

    E-Print Network [OSTI]

    Narasayya, Vivek

    and excitement for how computing technologies can help address major scientific and educational challenges. Tony Hey Corporate Vice President, External Research Division, Microsoft Research 1 Advancing a New Era

  8. Electricity generation and environmental externalities: Case studies, September 1995

    SciTech Connect (OSTI)

    NONE

    1995-09-28

    Electricity constitutes a critical input in sustaining the Nation`s economic growth and development and the well-being of its inhabitants. However, there are byproducts of electricity production that have an undesirable effect on the environment. Most of these are emissions introduced by the combustion of fossil fuels, which accounts for nearly 70 percent of the total electricity generated in the United States. The environmental impacts (or damages) caused by these emissions are labeled environmental ``externalities.`` Included in the generic term ``externality`` are benefits or costs resulting as an unintended byproduct of an economic activity that accrue to someone other than the parties involved in the activity. This report provides an overview of the economic foundation of externalities, the Federal and State regulatory approaches, and case studies of the impacts of the externality policies adopted by three States.

  9. On-chip Benchmarking and Calibration without External References

    E-Print Network [OSTI]

    Lee, Cheol-Woong

    2011-01-01

    the form factor of the mobile devices. The form factor meansa given size of the mobile devices. The external componentcrucial to the success of mobile devices in addition to the

  10. Portfolio Analysis and Management System (PAMS) External User Guide

    Office of Energy Efficiency and Renewable Energy (EERE)

    Portfolio Analysis and Management System (PAMS) External User Guide, Version 11.0, September 2013. Prepared for: U.S. Department of Energy Office of Science Office of Business Policy and Operations.

  11. CGOL - an Alternative External Representation For LISP users

    E-Print Network [OSTI]

    Pratt, Vaughan R.

    Advantages of the standard external representation of LISP include its simple definition, its economical implementation and its convenient extensibility. These advantages have been gained by trading off syntactic variety ...

  12. Strategic inventory management of externally sourced medical devices

    E-Print Network [OSTI]

    Hillstrom, Nichole L. (Nichole Leigh)

    2013-01-01

    The purpose of this research was to determine inventory strategies for externally sourced medical devices. In the medical device industry, the desire for high levels of customer service often results in less than optimal ...

  13. Kilovoltage Rotational External Beam Radiotherapy on a Breast Computed Tomography Platform: A Feasibility Study

    SciTech Connect (OSTI)

    Prionas, Nicolas D.; McKenney, Sarah E. [Department of Radiology, University of California, Davis, Medical Center, Sacramento, California (United States)] [Department of Radiology, University of California, Davis, Medical Center, Sacramento, California (United States); Stern, Robin L. [Department of Radiation Oncology, University of California, Davis, Medical Center, Sacramento, California (United States)] [Department of Radiation Oncology, University of California, Davis, Medical Center, Sacramento, California (United States); Boone, John M., E-mail: jmboone@ucdavis.edu [Department of Radiology, University of California, Davis, Medical Center, Sacramento, California (United States)

    2012-10-01

    Purpose: To demonstrate the feasibility of a dedicated breast computed tomography (bCT) platform to deliver rotational kilovoltage (kV) external beam radiotherapy (RT) for partial breast irradiation, whole breast irradiation, and dose painting. Methods and Materials: Rotational kV-external beam RT using the geometry of a prototype bCT platform was evaluated using a Monte Carlo simulator. A point source emitting 178 keV photons (approximating a 320-kVp spectrum with 4-mm copper filtration) was rotated around a 14-cm voxelized polyethylene disk (0.1 cm tall) or cylinder (9 cm tall) to simulate primary and primary plus scattered photon interactions, respectively. Simulations were also performed using voxelized bCT patient images. Beam collimation was varied in the x-y plane (1-14 cm) and in the z-direction (0.1-10 cm). Dose painting for multiple foci, line, and ring distributions was demonstrated using multiple rotations with varying beam collimation. Simulations using the scanner's native hardware (120 kVp filtered by 0.2-mm copper) were validated experimentally. Results: As the x-y collimator was narrowed, the two-dimensional dose profiles shifted from a cupped profile with a high edge dose to an increasingly peaked central dose distribution with a sharp dose falloff. Using a 1-cm beam, the cylinder edge dose was <7% of the dose deposition at the cylinder center. Simulations using 120-kVp X-rays showed distributions similar to the experimental measurements. A homogeneous dose distribution (<2.5% dose fluctuation) with a 20% decrease in dose deposition at the cylinder edge (i.e., skin sparing) was demonstrated by weighted summation of four dose profiles using different collimation widths. Simulations using patient bCT images demonstrated the potential for treatment planning and image-guided RT. Conclusions: Rotational kV-external beam RT for partial breast irradiation, dose painting, and whole breast irradiation with skin sparing is feasible on a bCT platform with the potential for high-resolution image-guided RT.

  14. BANK ACCOUNT FORM FOR EXTERNAL EXAMINERS (POSTGRADUATE) 1. The University prefers to make payment to external suppliers through BACS. This ensures that the

    E-Print Network [OSTI]

    Bearhop, Stuart

    payment to external suppliers through BACS. This ensures that the payment reaches your bank account more

  15. Color superconductivity in a strong external magnetic field

    E-Print Network [OSTI]

    Cristina Manuel

    2006-07-26

    We explore the effects of an applied strong external magnetic field in a three flavor massless color superconductor. The long-range component of the B field that penetrates the superconductor enhances some quark condensates, leading to a different condensation pattern. The external field also reduces the flavor symmetries in the system, and thus it changes drastically the corresponding low energy physics. Our considerations are relevant for the study of highly magnetized compact stars.

  16. The Higher Education Academy A handbook for external examining

    E-Print Network [OSTI]

    Daley, Monica A.

    . The scope of the handbook 5 1.1 Outline of the handbook 5 1.2 Inspector or critical friend? 6 2. An outlineYork/John Houlihan2 #12;3 Contents Page Section 24 5 The external examiner's report 27 6. Judging standards 28 6 four 35 Appendices 36 UUK/GuildHE general principles for external examining 36 A typical year

  17. A Review of "The Emblem in Scandinavia and the Baltic" by Simon McKeown, and "Emblematic Paintings from Sweden's Age of Greatness. Nils Bielke and the Neo-Stoic Gallery at Skokloster" by Simon McKeown 

    E-Print Network [OSTI]

    Burman, Lars

    2009-01-01

    in Scandinavia and the Baltic. Ed. Simon McKeown and Mara R. Wade. Glasgow: Glasgow Emblem Studies 11, 2006. xxvi + 340 pp. + illus. ? 21.99. Simon McKeown, Emblematic Paintings from Sweden?s Age of Greatness. Nils Bielke and the Neo-Stoic Gallery..., but the Danish and Swedish realms were geographically vast, and the rise of Sweden as a European great power extraordinary. The cultural influx in Scandinavia was strong and quick, and it is interesting to reflect on how the rise of political influence...

  18. The hydrogen atom in plasmas with an external electric field

    SciTech Connect (OSTI)

    Bahar, M. K.; Soylu, A.

    2014-09-15

    We numerically solve the Schrödinger equation, using a more general exponential cosine screened Coulomb (MGECSC) potential with an electric field, in order to investigate the screening and weak external electric field effects on the hydrogen atom in plasmas. The MGECSC potential is examined for four different cases, corresponding to different screening parameters of the potential and the external electric field. The influences of the different screening parameters and the weak external electric field on the energy eigenvalues are determined by solving the corresponding equations using the asymptotic iteration method (AIM). It is found that the corresponding energy values shift when a weak external electric field is applied to the hydrogen atom in a plasma. This study shows that a more general exponential cosine screened Coulomb potential allows the influence of an applied, weak, external electric field on the hydrogen atom to be investigated in detail, for both Debye and quantum plasmas simultaneously. This suggests that such a potential would be useful in modeling similar effects in other applications of plasma physics, and that AIM is an appropriate method for solving the Schrödinger equation, the solution of which becomes more complex due to the use of the MGECSC potential with an applied external electric field.

  19. Processing Visual Images

    SciTech Connect (OSTI)

    Litke, Alan (UC Santa Cruz) [UC Santa Cruz

    2006-03-27

    The back of the eye is lined by an extraordinary biological pixel detector, the retina. This neural network is able to extract vital information about the external visual world, and transmit this information in a timely manner to the brain. In this talk, Professor Litke will describe a system that has been implemented to study how the retina processes and encodes dynamic visual images. Based on techniques and expertise acquired in the development of silicon microstrip detectors for high energy physics experiments, this system can simultaneously record the extracellular electrical activity of hundreds of retinal output neurons. After presenting first results obtained with this system, Professor Litke will describe additional applications of this incredible technology.

  20. Low-Cost Alternative External Rotation Shoulder Brace and Review of Treatment in Acute Shoulder Dislocations

    E-Print Network [OSTI]

    Lacy, Kyle; Cooke, Chris; Cooke, Pat; Schupbach, Justin; Vaidya, Rahul

    2015-01-01

    beneficial after Video. Low-cost alternative externalmaterials cost for the low-cost external rotation shoulderR eview A rticle Low-Cost Alternative External Rotation

  1. How can an external application get access to OpenEI images and thumbnails?

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar2-0057-EA JumpDuimen RiverScoring Tool Jump to:Ethanol LLCJump to:

  2. Elastic monopoles and external torques in nematic liquid crystal colloids

    E-Print Network [OSTI]

    O. M. Tovkach; S. B. Chernyshuk; B. I. Lev

    2013-11-19

    Up to now it is commonly believed that a colloidal particle suspended in a nematic liquid crystal never produces elastic monopoles because this violates the mechanical equilibrium condition. And the only way to obtain deformations of director field falling off with distance as r^{-1} is to exert an external torque \\Gamma_{ext} on the colloid \\cite{de_Gennes}. In this paper we demonstrate that this statement is not quite correct and elastic monopoles, as well as dipoles and quadrupoles, can be induced without any external influence just by the particle itself. A behavior of a spherical colloidal particle with asymmetric anchoring strength distribution is considered theoretically. It is demonstrated that such a particle when suspended in a nematic host can produce director deformations decreasing as $r^{-1}$, i.e. elastic monopoles, by itself without any external influence.

  3. Chapter 2 A Gallery of Applications 17 A gallery of

    E-Print Network [OSTI]

    Wright, Dawn Jeannine

    data, such as those generated using GPS technology or supplied by value-added resellers (VARs) of data; business and service planning; geodemographics; housing study; logistics and transportation; emergency supports mapping, measurement, management, monitoring, and modeling operations; o generates measurable

  4. Externalities and electric power: an integrated assessment approach

    SciTech Connect (OSTI)

    Lee, R.

    1995-12-31

    This paper describes an integrated assessment approach for considering the options that electric utilities have to meet the anticipated demand for their power. The objective that this paper considers is one of meeting the demand for power, with an acceptable degree of reliability, at minimum cost. The total cost is the sum of the private cost of producing the electric power plus the external costs that result from its production. These external costs, or externalities, are effects on the well-being of third parties that producers and consumers of electric power do not take into account in their decisions. The external costs include many different types of effects such as illness, ecosystem damage, and road damage. The solution to the problem of minimizing total cost is addressed in two steps. The first step uses damage function methods to establish a common metric for the weights of the different objectives (i.e., external costs). The damage function analysis also reduces the dimensionality of the analysis in the second step, and identifies criteria to include in that analysis. The second step uses multi-criteria decision methods. This analysis includes the most important externalities that the damage function analysis identifies and, in addition, potentially important factors that can not be quantified reliably using damage function methods. An example of the latter are the damages from global climate change. The two-step method that this paper describes addresses many of the limitations of the damage function method and multi-criteria methods, that arise when they are used separately. This linked method can be used by electric utilities for their integrated resource planning. It can also be adapted to other applications.

  5. Instructions for External Examiners submitting 2014/15 Annual Report The Royal Veterinary College utilises an online system for submitting External Examiner Reports. This allows External Examiners to view the

    E-Print Network [OSTI]

    Daley, Monica A.

    Instructions for External Examiners submitting 2014/15 Annual Report The Royal Veterinary College utilises an online system for submitting External Examiner Reports. This allows External Examiners to view the report that they have submitted and the responses made to them, online for the duration

  6. The external field dependence of the BCS critical temperature

    E-Print Network [OSTI]

    Rupert L. Frank; Christian Hainzl; Robert Seiringer; Jan Philip Solovej

    2014-10-09

    We consider the Bardeen-Cooper-Schrieffer free energy functional for particles interacting via a two-body potential on a microscopic scale and in the presence of weak external fields varying on a macroscopic scale. We study the influence of the external fields on the critical temperature. We show that in the limit where the ratio between the microscopic and macroscopic scale tends to zero, the next to leading order of the critical temperature is determined by the lowest eigenvalue of the linearization of the Ginzburg-Landau equation.

  7. A channel Brownian pump powered by an unbiased external force

    E-Print Network [OSTI]

    Bao-quan Ai; Liang-gang Liu

    2010-03-22

    A Brownian pump of particles in an asymmetric finite tube is investigated in the presence of an unbiased external force. The pumping system is bounded by two particle reservoirs. It is found that the particles can be pumped through the tube from a reservoir at low concentration to one at the same or higher concentration. There exists an optimized value of temperature (or the amplitude of the external force) at which the pumping capacity takes its maximum value. The pumping capacity decreases with increasing the radius at the bottleneck of the tube.

  8. Photon propagation in noncommutative QED with constant external field

    E-Print Network [OSTI]

    R. Fresneda; D. M. Gitman; A. E. Shabad

    2015-01-20

    We find dispersion laws for the photon propagating in the presence of mutually orthogonal constant external electric and magnetic fields in the context of the $\\theta $-expanded noncommutative QED. We show that there is no birefringence to the first order in the noncommutativity parameter $% \\theta .$ By analyzing the group velocities of the photon eigenmodes we show that there occurs superluminal propagation for any direction. This phenomenon depends on the mutual orientation of the external electromagnetic fields and the noncommutativity vector. We argue that the propagation of signals with superluminal group velocity violates causality in spite of the fact that the noncommutative theory is not Lorentz-invariant and speculate about possible workarounds.

  9. The damage function approach for estimating fuel cycle externalities

    SciTech Connect (OSTI)

    Lee, R.

    1993-10-01

    This paper discusses the methodology used in a study of fuel cycle externalities sponsored by the US Department of Energy and the Commission of the European Communities. The methodology is the damage function approach. This paper describes that approach and discusses its application and limitations. The fuel cycles addressed are those in which coal, biomass, oil, hydro, natural gas and uranium are used to generate electric power. The methodology is used to estimate the physical impacts of these fuel cycles on environmental resources and human health, and the external costs and benefits of these impacts.

  10. Frequency-doubled vertical-external-cavity surface-emitting laser

    DOE Patents [OSTI]

    Raymond, Thomas D. (Edgewood, NM); Alford, William J. (Albuquerque, NM); Crawford, Mary H. (Albuquerque, NM); Allerman, Andrew A. (Albuquerque, NM)

    2002-01-01

    A frequency-doubled semiconductor vertical-external-cavity surface-emitting laser (VECSEL) is disclosed for generating light at a wavelength in the range of 300-550 nanometers. The VECSEL includes a semiconductor multi-quantum-well active region that is electrically or optically pumped to generate lasing at a fundamental wavelength in the range of 600-1100 nanometers. An intracavity nonlinear frequency-doubling crystal then converts the fundamental lasing into a second-harmonic output beam. With optical pumping with 330 milliWatts from a semiconductor diode pump laser, about 5 milliWatts or more of blue light can be generated at 490 nm. The device has applications for high-density optical data storage and retrieval, laser printing, optical image projection, chemical-sensing, materials processing and optical metrology.

  11. Photo Galleries | Department of Energy

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

    Flat Wind Farm 2013 Washington Auto Show An Express Train to Crescent Junction Photo of the Week: 2013 What&039;s your energypledge? What's your EnergyPledge? 1....

  12. Photo Galleries | Department of Energy

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

    Skip to main content Menu Energy.gov Search link to facebook link to twitter Email Signup Sign up for updates Go Search form Search Energy.gov Public Services Public Services Home...

  13. Photo Galleries | Department of Energy

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

    Campus adds 3.5 MW of Clean, Domestic Electricity Generation Low-Temperature Geothermal Photo Library FORO Energy partners with the U.S. Department of Energy to Commercialize...

  14. Photo Galleries | Department of Energy

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

    Demonstration Yields First Commercial Power to the Grid Geothermal EGS Demonstration Photo Library University of Las Vegas Challenge Home Student Design Competition Western...

  15. Photo Galleries | Department of Energy

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

    Illinois First Zero Energy Custom by Evolutionary Home Builders LLC (formerly Weiss) DOE Tour of Zero: The MassDevelopment Production House by Transformations Inc. DOE Tour of...

  16. Photo Galleries | Department of Energy

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

    -Smart Grid Science & Innovation -Science & Technology --Biological Science --Chemical Science --Computing --Engineering --Environmental Science --Materials Science...

  17. Photo Galleries | Department of Energy

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

    Tour of Zero: McCormick Avenue by BrightLeaf Homes DOE Tour of Zero: Taft School by BPC Green Builders DOE Tour of Zero: Fishers Circle by Amaris Homes DOE Tour of Zero: Cobbler...

  18. Photo Galleries | Department of Energy

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

    --Water --Geothermal --Bioenergy -Fossil --Coal ---Carbon Capture & Sequestration --Oil ---Petroleum Reserves --Natural Gas -Nuclear --Fusion --Fission -Electricity -Hydrogen...

  19. VPP Photo Gallery - Hanford Site

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

    Treatment Facility 100HX Groundwater Treatment Facility 200 West Groundwater Treatment LEED Facility 200 West Pump and Treat 200W Pump and Treat Event 2010 Fire Season 2013 Safety...

  20. Princeton Plasma Physics Lab - Galleries

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass mapSpeedingProgram GuidelinesThousand CubicCubicengineering Thisroadmapping

  1. Galleries | Princeton Plasma Physics Lab

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation Current HABFESOpportunities Nuclear PhysicsGE GlobalGetting&Tools » Galaxy

  2. Wind Gallery | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann Jackson About1996HowFOAShowingFuelWeatherize » Airare theWildlifeWind Farms through

  3. Photo Galleries | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuelsof EnergyAprilEnergyPartnership for EnergyPetroleum Reserves

  4. Photo Galleries | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuelsof EnergyAprilEnergyPartnership for EnergyPetroleum ReservesIllinois

  5. Photo Galleries | Department of Energy

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

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

  6. Photo Galleries | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuelsof EnergyAprilEnergyPartnership for EnergyPetroleumZero to 60 in under

  7. Photo Galleries | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuelsof EnergyAprilEnergyPartnership for EnergyPetroleumZero to 60 in

  8. Photo Galleries | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuelsof EnergyAprilEnergyPartnership for EnergyPetroleumZero to 60 inEnergy

  9. Photo Galleries | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuelsof EnergyAprilEnergyPartnership for EnergyPetroleumZero to 60

  10. Photo Galleries | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuelsof EnergyAprilEnergyPartnership for EnergyPetroleumZero to 60Day 12:

  11. Photo Galleries | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels Data CenterFinancialInvesting inServices »About Us »ParkingPersonalNews &

  12. Experiences of child maltreatment and their effects on the development of externalizing behavior problems among youth

    E-Print Network [OSTI]

    Villodas, Miguel

    2011-01-01

    Age Four LCA………………………………. ……..……………….Age Eight LCA……………………………………………………….Age Twelve LCA…………………………………………………… LTA of Externalizing

  13. External micro ion-beam analysis (X-MIBA)

    SciTech Connect (OSTI)

    Doyle, B.L.; Lee, S.R. (Sandia National Labs., Albuquerque, NM (USA)); Walsh, D.S. (Idaho State Univ., Pocatello, ID (USA))

    1989-01-01

    In-air or external ion beam analysis combined with 10--100 {mu}m spatial resolution, is a truly unique feature of the nuclear microprobe technique. PIXE has been performed externally for many years, but recently, other IBA techniques such as backscattering and nuclear reaction depth profiling measurements have been made in air. Presently, the use of eXternal Micro Ion-Beam Analysis, or X-MIBA, is being attempted at a growing number of microprobe facilities; however, the full potential of this new technique remains relatively unexploited. This paper will review the X-MIBA technique with emphasis on optimization of exit foil geometries, beam focusing and spot size considerations, external IBA techniques, and radiation hazards associated with the direct and scattered beam, nuclear reaction products and radionuclei production in the air. The unique in-air analysis advantages of no pump down, and essentially unrestricted sample size or state (solid, liquid etc.), has resulted in a myriad of applications of this technique at Sandia, which are featured as examples. 52 refs., 8 figs., 2 tabs.

  14. THE ENACTMENT-EXTERNALIZATION DIALECTIC: RATIONALIZATION AND THE PERSISTENCE OF

    E-Print Network [OSTI]

    Leonardi, Paul

    what "good engineers" do, and they sought to justify those practices as rational. This externalization aimed at helping newcomers to learn the norms of a partic- ular culture. For this reason, most research a "good doctor." The re- searchers pointed out that in many cases, students' notions about natural, normal

  15. External Memory Controller for Virtex II Pro Blagomir Donchev

    E-Print Network [OSTI]

    An implementation of an On Chip Memory (OCM) based Dual Data Rate external memory controller (OCM2DDR) for Virtex II Pro is described. The proposed OCM2DDR controller comprises Data Side OCM (DSOCM) bus interface module, read and write control logic, halt read module and Xilinx DDR controller IP core. The presented design

  16. First Generation Indian External Sector Reforms in Context

    E-Print Network [OSTI]

    Bhala, Raj

    2013-01-01

    India's first generation external sector reforms are a fascinating case study of emergence from a post-Independence socialist-style economy to the world’s largest free market democracy. Part I of this article reviews the Indian license Raj system...

  17. April 2015 P a g e | 116 Major External Reviews

    E-Print Network [OSTI]

    Princeton Plasma Physics Laboratory

    Committee = 11 DOE-OPA = 7 Other Management = 6 Technical Design Review = 10 Total =34 Detail List External 2009 DOE 17 CDR Conceptual Design Review (Oct 28-29, 2009) GA 8 DOE-OPA Review CD-1 Dec 2009 ORNL 7 Princeton University Advisory Committee Oct 2010 Culham 1 DOE-OPA Review CD-2 August 2010 Abuquerque 1

  18. Final Independent External Peer Review Report West Sacramento Project, California,

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Final Independent External Peer Review Report West Sacramento Project, California, General Baltimore District Contract No. W912HQ-10-D-0002 Task Order: 0072 October 6, 2014 #12;West Sacramento GRR Sacramento GRR IEPR | Final IEPR Report BATTELLE | October 6, 2014 i CONTRACT NO. W912HQ-10-D-0002 Task Order

  19. Externally triggered coherent two-photon emission from hydrogen molecules

    E-Print Network [OSTI]

    Yuki Miyamoto; Hideaki Hara; Takahiko Masuda; Noboru Sasao; Minoru Tanaka; Satoshi Uetake; Akihiro Yoshimi; Koji Yoshimura; Motohiko Yoshimura

    2015-05-28

    We report coherent enhancement of two-photon emission from the excited vibrational state of molecular hydrogen triggered by irradiating mid-infrared pulses externally. We previously observed the two-photon emission triggered by the internally generated fourth Stokes photons. By injecting independent mid-infrared pulses externally, it is possible to control experimental parameters and investigate the mechanism in more detail. In this article, we describe the two-photon emission using the external trigger pulses. Its spectrum and dependence on the energy and timing of the trigger pulse are presented along with numerical simulations based on the Maxwell-Bloch equations. The measured number of emitted photons is 6 10^11 photons/pulse and the resulting enhancement factor from the spontaneous emission is more than 10^18. This value is three orders of magnitude higher than that of the previous experiment. External control of emission process is expected to be essential for observation of weaker process of radiative emission of neutrino pair.

  20. Externally triggered coherent two-photon emission from hydrogen molecules

    E-Print Network [OSTI]

    Miyamoto, Yuki; Masuda, Takahiko; Sasao, Noboru; Tanaka, Minoru; Uetake, Satoshi; Yoshimi, Akihiro; Yoshimura, Koji; Yoshimura, Motohiko

    2015-01-01

    We report coherent enhancement of two-photon emission from the excited vibrational state of molecular hydrogen triggered by irradiating mid-infrared pulses externally. We previously observed the two-photon emission triggered by the internally generated fourth Stokes photons. By injecting independent mid-infrared pulses externally, it is possible to control experimental parameters and investigate the mechanism in more detail. In this article, we describe the two-photon emission using the external trigger pulses. Its spectrum and dependence on the energy and timing of the trigger pulse are presented along with numerical simulations based on the Maxwell-Bloch equations. The measured number of emitted photons is 6 10^11 photons/pulse and the resulting enhancement factor from the spontaneous emission is more than 10^18. This value is three orders of magnitude higher than that of the previous experiment. External control of emission process is expected to be essential for observation of weaker process of radiative ...

  1. An External Shock Origin of GRB $\\textit{141028A}$

    E-Print Network [OSTI]

    Burgess, J Michael; Ryde, Felix; Omodei, Nicola; Pe'er, Asaf; Racusin, J L; Cucchiara, A

    2015-01-01

    The prompt emission of the long, smooth, and single-pulsed gamma-ray burst, GRB $\\textit{141028A}$, is analyzed under the guise of an external shock model. First, we fit the $\\gamma$-ray spectrum with a two-component photon model, namely synchrotron+blackbody, and then fit the recovered evolution of the synchrotron $\

  2. Is Knowledge Easy -or Impossible? Externalism as the Only Alternative

    E-Print Network [OSTI]

    Fitelson, Branden

    Chapter 4 Is Knowledge Easy - or Impossible? Externalism as the Only Alternative to Skepticism makes knowledge too easy. i In what follows I press the suggestion that the only alternative, they believe that there is some third alternative to the easy knowledge of the externalist and the unattainable

  3. Positron emission imaging device and method of using the same

    DOE Patents [OSTI]

    Bingham, Philip R.; Mullens, James Allen

    2013-01-15

    An imaging system and method of imaging are disclosed. The imaging system can include an external radiation source producing pairs of substantially simultaneous radiation emissions of a picturization emission and a verification emissions at an emission angle. The imaging system can also include a plurality of picturization sensors and at least one verification sensor for detecting the picturization and verification emissions, respectively. The imaging system also includes an object stage is arranged such that a picturization emission can pass through an object supported on said object stage before being detected by one of said plurality of picturization sensors. A coincidence system and a reconstruction system can also be included. The coincidence can receive information from the picturization and verification sensors and determine whether a detected picturization emission is direct radiation or scattered radiation. The reconstruction system can produce a multi-dimensional representation of an object imaged with the imaging system.

  4. Estimating Fuel Cycle Externalities: Analytical Methods and Issues, Report 2

    SciTech Connect (OSTI)

    Barnthouse, L.W.; Cada, G.F.; Cheng, M.-D.; Easterly, C.E.; Kroodsma, R.L.; Lee, R.; Shriner, D.S.; Tolbert, V.R.; Turner, R.S.

    1994-07-01

    The activities that produce electric power typically range from extracting and transporting a fuel, to its conversion into electric power, and finally to the disposition of residual by-products. This chain of activities is called a fuel cycle. A fuel cycle has emissions and other effects that result in unintended consequences. When these consequences affect third parties (i.e., those other than the producers and consumers of the fuel-cycle activity) in a way that is not reflected in the price of electricity, they are termed ''hidden'' social costs or externalities. They are the economic value of environmental, health and any other impacts, that the price of electricity does not reflect. How do you estimate the externalities of fuel cycles? Our previous report describes a methodological framework for doing so--called the damage function approach. This approach consists of five steps: (1) characterize the most important fuel cycle activities and their discharges, where importance is based on the expected magnitude of their externalities, (2) estimate the changes in pollutant concentrations or other effects of those activities, by modeling the dispersion and transformation of each pollutant, (3) calculate the impacts on ecosystems, human health, and any other resources of value (such as man-made structures), (4) translate the estimates of impacts into economic terms to estimate damages and benefits, and (5) assess the extent to which these damages and benefits are externalities, not reflected in the price of electricity. Each step requires a different set of equations, models and analysis. Analysts generally believe this to be the best approach for estimating externalities, but it has hardly been used! The reason is that it requires considerable analysis and calculation, and to this point in time, the necessary equations and models have not been assembled. Equally important, the process of identifying and estimating externalities leads to a number of complex issues that also have not been fully addressed. This document contains two types of papers that seek to fill part of this void. Some of the papers describe analytical methods that can be applied to one of the five steps of the damage function approach. The other papers discuss some of the complex issues that arise in trying to estimate externalities. This report, the second in a series of eight reports, is part of a joint study by the U.S. Department of Energy (DOE) and the Commission of the European Communities (EC)* on the externalities of fuel cycles. Most of the papers in this report were originally written as working papers during the initial phases of this study. The papers provide descriptions of the (non-radiological) atmospheric dispersion modeling that the study uses; reviews much of the relevant literature on ecological and health effects, and on the economic valuation of those impacts; contains several papers on some of the more complex and contentious issues in estimating externalities; and describes a method for depicting the quality of scientific information that a study uses. The analytical methods and issues that this report discusses generally pertain to more than one of the fuel cycles, though not necessarily to all of them. The report is divided into six parts, each one focusing on a different subject area.

  5. The development of external sanitary facilities aboard ships of the fifteenth to nineteenth centuries 

    E-Print Network [OSTI]

    Simmons, Joe J

    1985-01-01

    Centuries. (December 1985) Joe John S1mmons, III, B. A. , Southern Methodist University Chai rman of Advisory Comm1ttee: Dr. George F. Bass This thesis examines the appearance and development of seats-of-ease, roundhouses, pissdales, quarter galleries.... Stern turrets on two vessels drawn by the Master WA; late 15th century. . . . . . . . . . . . . . 41 Figure 13. Battlemented stern turrets on ship from Gozzoli 's The Ra e of Helen; late 15th century. 41 Figure 14. Stern of a 15th-century carrack...

  6. Imaging Scatterometry

    E-Print Network [OSTI]

    Madsen, Morten Hannibal

    2015-01-01

    We present an optical metrology system for characterization of topography of micro/nano-structures on a surface or embedded in a semi-transparent material. Based on the principles of scatterometry, where the intensity of scattered light is used as a 'fingerprint' to reconstruct a surface, this new imaging scatterometer can easily find areas of interest on the cm scale and measure multiple segments simultaneously. The imaging scatterometer measures structural features, such as height, width, and sidewall angle of a grating locally on few um2 areas with nm resolution. We demonstrate two imaging scatterometers, one built into an optical microscope and one in a split configuration. The two scatterometers are targeted characterization of mm2 and cm2 areas, respectively, and both setups are validated using nano-textured samples.

  7. CONTINUOUS EXTRACTED BEAM IN THE AGS FAST EXTERNAL BEAM LINE.

    SciTech Connect (OSTI)

    GLENN,J.W.; TSOUPAS,N.; BROWN,K.A.; BIRYUKOV,V.M.

    2001-06-18

    A method to split off a few percent of the 6 x 10{sup 13} AGS beam delivered to the Slow External Beam (SEB) lines and send it down the Fast External Beam line (FEB) has been developed. The mission is to feed a counter experiment off the FEB that directly measures the neutrino mass using the muon storage ring. The use of normal thin septum splitters would have an excessive loss overhead and been optically difficult. The AGS Slow Extraction uses a third integer resonance with sextuple strength so the resonance width is a few percent of the beam width. This results in a low density tail which will be clipped by a bent crystal and deflected into the FEB channel. This clipping off of the tail should reduce losses in the SEB transport line. Details of modeled orbits, particle distribution and extraction trajectories into and out off the crystal will be given.

  8. Tidal deformation of a slowly rotating material body. External metric

    E-Print Network [OSTI]

    Philippe Landry; Eric Poisson

    2015-07-31

    We construct the external metric of a slowly rotating, tidally deformed material body in general relativity. The tidal forces acting on the body are assumed to be weak and to vary slowly with time, and the metric is obtained as a perturbation of a background metric that describes the external geometry of an isolated, slowly rotating body. The tidal environment is generic and characterized by two symmetric-tracefree tidal moments E_{ab} and B_{ab}, and the body is characterized by its mass M, its radius R, and a dimensionless angular-momentum vector \\chi^a new quantities, which we designate as rotational-tidal Love numbers. All these Love numbers are gauge invariant in the usual sense of perturbation theory, and all vanish when the body is a black hole.

  9. Emergence of coexisting coherence and incoherence by an external forcing

    E-Print Network [OSTI]

    V. K. Chandrasekar; R. Suresh; D. V. Senthilkumar; M. Lakshmanan

    2015-04-11

    A common external forcing can cause a saddle-node bifurcation in an ensemble of identical Duffing oscillators by breaking the symmetry of the individual bistable (double-well) unit. The strength of the forcing determines the separation between the saddle and node, which in turn dictates different dynamical transitions depending on the distribution of the initial states of the oscillators. In particular, chimera-like states appear in the vicinity of the saddle-node bifurcation for which theoretical explanation is provided from the stability of slow-scale dynamics of the original system of equations. Further, as a consequence, it is shown that even a linear nearest neighbor coupling can lead to the manifestation of the chimera states in an ensemble of identical Duffing oscillators in the presence of the common external forcing.

  10. Dirac bound states of anharmonic oscillator in external fields

    SciTech Connect (OSTI)

    Hamzavi, Majid, E-mail: majid.hamzavi@gmail.com [Department of Physics, University of Zanjan, Zanjan (Iran, Islamic Republic of)] [Department of Physics, University of Zanjan, Zanjan (Iran, Islamic Republic of); Ikhdair, Sameer M., E-mail: sikhdair@gmail.com [Department of Physics, Faculty of Science, an-Najah National University, Nablus, West Bank, Palestine (Country Unknown); Department of Electrical and Electronic Engineering, Near East University, 922022 Nicosia, Northern Cyprus, Mersin 10 (Turkey); Falaye, Babatunde J., E-mail: fbjames11@physicist.net [Theoretical Physics Section, Department of Physics, University of Ilorin, P. M. B. 1515, Ilorin (Nigeria)

    2014-02-15

    We explore the effect of the external magnetic and Aharonov–Bohm (AB) flux fields on the energy levels of Dirac particle subjects to mixed scalar and vector anharmonic oscillator field in the two-dimensional (2D) space. We calculate the exact energy eigenvalues and the corresponding un-normalized two-spinor-components wave functions in terms of the chemical potential parameter, magnetic field strength, AB flux field and magnetic quantum number by using the Nikiforov–Uvarov (NU) method. -- Highlights: • Effect of the external fields on the energy levels of Dirac particle with the anharmonic oscillator is investigated. • The solutions are discussed in view of spin and pseudospin symmetries limits. • The energy levels and wave function are presented by the Nikiforov–Uvarov method.

  11. Thermodynamic Branch in the Chemical System Response to External Impact

    E-Print Network [OSTI]

    Zilbergleyt, B

    2012-01-01

    The paper gives an account of a detailed investigation of the thermodynamic branch as a path of the chemical system deviation from its isolated thermodynamic equilibrium under an external impact. For a combination of direct and reverse reactions in the same chemical system, full thermodynamic branch is presented by an S-shaped curve, whose ends asymptotically achieve appropriate initial states, which, in turn, are logistic ends of the opposite reactions. The slope tangents of the steepest parts of the curves, the areas of the maximum rate of the shift growth vs. the external thermodynamic force, occurred to be directly proportional to the force and, simultaneously, linearly proportional to the thermodynamic equivalent of chemical reaction, which is the ratio between the amount in moles of any reaction participant, transformed in an isolated system, along the reaction way from its initial state to thermodynamic equilibrium, to its stoichiometric coefficient. The found linearity is valid for arbitrary combinati...

  12. RF Pulse Design for Parallel Excitation in Magnetic Resonance Imaging 

    E-Print Network [OSTI]

    Liu, Yinan

    2012-07-16

    ? ?= (2.1) where ? is the gyromagnetic ratio. For 1H, ? = 42.58MHz/Tesla. 5 Figure 2.1. Precession of a nuclear spin about an external magnetic field. The imaging of an object relies on the bulk precession of the hydrogen spins in water...

  13. Record External Quantum Efficiency in Blue OLED Device

    Broader source: Energy.gov [DOE]

    Scientists at Pacific Northwest National Laboratory (PNNL) have created a blue organic light emitting diode (OLED) with an external quantum efficiency (EQE) of 11% at 800 cd/m2, exceeding their previous record EQE of 8%. The EQE of blue OLEDs is a major challenge in OLED technology development. This achievement is particularly notable since it was accomplished at a much lower operating voltage (6.2V) than previous demonstrations using similar structures, revealing the potential for much higher power efficiencies.

  14. Entrainment of Weakly Coupled Oscillators by External Driving

    E-Print Network [OSTI]

    Anlage, Steven

    Entrainment of Weakly Coupled Oscillators by External Driving Rose Faghih and John Platig Advisers entrainment? Entrainment: The response of the oscillator system varies periodically at the period of the drive is a threshold for entrainment. Our Result 0 0.5 1 1.5 2 2.5 3 0 0.5 1 1.5 2 2.5 3 M Entrainment Threshold in M

  15. Nonresonant entrainment of detuned oscillators induced by common external noise

    E-Print Network [OSTI]

    Kazuyuki Yoshimura; Peter Davis; Atsushi Uchida

    2007-05-31

    We have found that a novel type of entrainment occurs in two nonidentical limit cycle oscillators subjected to a common external white Gaussian noise. This entrainment is anomalous in the sense that the two oscillators have different mean frequencies, where the difference is constant as the noise intensity increases, but their phases come to be locked for almost all the time. We present a theory and numerical evidence for this phenomenon.

  16. Hanford External Dosimetry Technical Basis Manual PNL-MA-842

    SciTech Connect (OSTI)

    Rathbone, Bruce A.

    2005-02-25

    The Hanford External Dosimetry Technical Basis Manual PNL-MA-842 documents the design and implementation of the external dosimetry system used at Hanford. The manual describes the dosimeter design, processing protocols, dose calculation methodology, radiation fields encountered, dosimeter response characteristics, limitations of dosimeter design under field conditions, and makes recommendations for effective use of the dosimeters in the field. The manual describes the technical basis for the dosimetry system in a manner intended to help ensure defensibility of the dose of record at Hanford and to demonstrate compliance with 10 CFR 835, DOELAP, DOE-RL, ORP, PNSO, and Hanford contractor requirements. The dosimetry system is operated by PNNL’s Hanford External Dosimetry Program which provides dosimetry services to all Hanford contractors. The primary users of this manual are DOE and DOE contractors at Hanford using the dosimetry services of PNNL. Development and maintenance of this manual is funded directly by DOE and DOE contractors. Its contents have been reviewed and approved by DOE and DOE contractors at Hanford through the Hanford Personnel Dosimetry Advisory Committee which is chartered and chaired by DOE-RL and serves as means of coordinating dosimetry practices across contractors at Hanford. This manual was established in 1996. Since inception, it has been revised many times and maintained by PNNL as a controlled document with controlled distribution. Rev. 0 marks the first revision to be released through PNNL’s Electronic Records & Information Capture Architecture (ERICA) database.

  17. Nuclear Imaging | Jefferson Lab

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

    Research Jefferson Lab's Radiation Detector and Imaging Group Members of Jefferson Lab's Radiation Detector & Medical Imaging Group design and build unique imaging devices based on...

  18. Imaging bolometer

    DOE Patents [OSTI]

    Wurden, Glen A. (Los Alamos, NM)

    1999-01-01

    Radiation-hard, steady-state imaging bolometer. A bolometer employing infrared (IR) imaging of a segmented-matrix absorber of plasma radiation in a cooled-pinhole camera geometry is described. The bolometer design parameters are determined by modeling the temperature of the foils from which the absorbing matrix is fabricated by using a two-dimensional time-dependent solution of the heat conduction equation. The resulting design will give a steady-state bolometry capability, with approximately 100 Hz time resolution, while simultaneously providing hundreds of channels of spatial information. No wiring harnesses will be required, as the temperature-rise data will be measured via an IR camera. The resulting spatial data may be used to tomographically investigate the profile of plasmas.

  19. Imaging bolometer

    DOE Patents [OSTI]

    Wurden, G.A.

    1999-01-19

    Radiation-hard, steady-state imaging bolometer is disclosed. A bolometer employing infrared (IR) imaging of a segmented-matrix absorber of plasma radiation in a cooled-pinhole camera geometry is described. The bolometer design parameters are determined by modeling the temperature of the foils from which the absorbing matrix is fabricated by using a two-dimensional time-dependent solution of the heat conduction equation. The resulting design will give a steady-state bolometry capability, with approximately 100 Hz time resolution, while simultaneously providing hundreds of channels of spatial information. No wiring harnesses will be required, as the temperature-rise data will be measured via an IR camera. The resulting spatial data may be used to tomographically investigate the profile of plasmas. 2 figs.

  20. Exaggerated attention blink response in prisoners with externalizing Arielle Baskin-Sommers a,

    E-Print Network [OSTI]

    Nieuwenhuis, Sander

    Exaggerated attention blink response in prisoners with externalizing Arielle Baskin-Sommers a task to a sample of male prisoners and assessed externalizing using the Impulsive­Antisociality scale

  1. Utility External Disconnect Switch: Practical, Legal, and Technical Reasons to Eliminate the Requirement

    Broader source: Energy.gov [DOE]

    This report documents the safe operation of PV systems without a utility external disconnect switch in several large jurisdictions. It includes recommendations for regulators contemplating utility external disconnect switch requirements.

  2. Hanford External Dosimetry Technical Basis Manual PNL-MA-842

    SciTech Connect (OSTI)

    Rathbone, Bruce A.

    2009-08-28

    The Hanford External Dosimetry Technical Basis Manual PNL-MA-842 documents the design and implementation of the external dosimetry system used at Hanford. The manual describes the dosimeter design, processing protocols, dose calculation methodology, radiation fields encountered, dosimeter response characteristics, limitations of dosimeter design under field conditions, and makes recommendations for effective use of the dosimeters in the field. The manual describes the technical basis for the dosimetry system in a manner intended to help ensure defensibility of the dose of record at Hanford and to demonstrate compliance with 10 CFR 835, DOELAP, DOE-RL, ORP, PNSO, and Hanford contractor requirements. The dosimetry system is operated by PNNL’s Hanford External Dosimetry Program (HEDP) which provides dosimetry services to all Hanford contractors. The primary users of this manual are DOE and DOE contractors at Hanford using the dosimetry services of PNNL. Development and maintenance of this manual is funded directly by DOE and DOE contractors. Its contents have been reviewed and approved by DOE and DOE contractors at Hanford through the Hanford Personnel Dosimetry Advisory Committee (HPDAC) which is chartered and chaired by DOE-RL and serves as means of coordinating dosimetry practices across contractors at Hanford. This manual was established in 1996. Since inception, it has been revised many times and maintained by PNNL as a controlled document with controlled distribution. The first revision to be released through PNNL’s Electronic Records & Information Capture Architecture (ERICA) database was designated Revision 0. Revision numbers that are whole numbers reflect major revisions typically involving changes to all chapters in the document. Revision numbers that include a decimal fraction reflect minor revisions, usually restricted to selected chapters or selected pages in the document.

  3. Control of multiple excited image states around segmented carbon nanotubes

    E-Print Network [OSTI]

    Knörzer, J; Sadeghpour, H R; Schmelcher, P

    2015-01-01

    Electronic image states around segmented carbon nanotubes can be confined and shaped along the nanotube axis by engineering the image potential. We show how several such image states can be prepared simultaneously along the same nanotube. The inter-electronic distance can be controlled a priori by engineering tubes of specific geometries. High sensitivity to external electric and magnetic fields can be exploited to manipulate these states and their mutual long-range interactions. These building blocks provide access to a new kind of tailored interacting quantum systems.

  4. Noncommutative Dirac oscillator in an external magnetic field

    E-Print Network [OSTI]

    Bhabani Prasad Mandal; Sumit Kumar Rai

    2012-03-13

    We show that (2+1) dimensional noncommutative Dirac oscillator in an external magnetic field is mapped onto the same but with reduced angular frequency in absence of magnetic field. We construct the relativistic Landau levels by solving corresponding Dirac equation in (2+1) dimensional noncommutative phase space. We observe that lowest Landau levels are exactly same as in commutative space and independent of non-commutative parameter. All the Landau levels become independent of noncommutative parameter for a critical value of the magnetic field. Several other interesting features along with the relevance of such models in the study of atomic transitions in a radiation field have been discussed.

  5. Environmental externalities: A survey of state commission actions

    SciTech Connect (OSTI)

    Cohen, S.D.; Eto, J.H. [National Association of Regulatory Utility Commissioners, Washington, DC (United States); Goldman, C.A. [Lawrence Berkeley Lab., CA (United States); Beldock, J. [USDOE Assistant Secretary for Conservation and Renewable Energy, Washington, DC (United States). Office of Buildings and Community Systems; Crandall, G. [MSB Associates, Middleton, WI (United States)

    1990-05-01

    Awareness of the environmental consequences of electricity production have led many state public utility commissions (PUC) to consider these externalities formally in their regulation of utilities. At the request of NARUC`s Energy Conservation staff subcommittee, the Lawrence Berkeley Laboratory conducted a survey to identify the extent and range of PUC approaches to this issue; responses were obtained from PUC staff in 49 states and the District of Columbia. The study should be viewed as providing a ``snapshot`` of regulatory developments in an area that is evolving rapidly. 16 refs.

  6. Environmental externalities: A survey of state commission actions

    SciTech Connect (OSTI)

    Cohen, S.D.; Eto, J.H. (National Association of Regulatory Utility Commissioners, Washington, DC (United States)); Goldman, C.A. (Lawrence Berkeley Lab., CA (United States)); Beldock, J. (USDOE Assistant Secretary for Conservation and Renewable Energy, Washington, DC (United States). Office of Buildings and Community Systems); Crandall, G. (MSB Associates, Middleton, WI (United States))

    1990-05-01

    Awareness of the environmental consequences of electricity production have led many state public utility commissions (PUC) to consider these externalities formally in their regulation of utilities. At the request of NARUC's Energy Conservation staff subcommittee, the Lawrence Berkeley Laboratory conducted a survey to identify the extent and range of PUC approaches to this issue; responses were obtained from PUC staff in 49 states and the District of Columbia. The study should be viewed as providing a snapshot'' of regulatory developments in an area that is evolving rapidly. 16 refs.

  7. Nonrelativistic molecular models under external magnetic and AB flux fields

    E-Print Network [OSTI]

    Sameer M. Ikhdair; Babatunde J. Falaye; Majid Hamzavi

    2014-12-21

    By using the wave function ansatz method, we study the energy eigenvalues and wave function for any arbitrary $m$-state in two-dimensional Schr\\"{o}dinger wave equation with various power interaction potentials in constant magnetic and Aharonov-Bohm (AB) flux fields perpendicular to the plane where the interacting particles are confined. We calculate the energy levels of some diatomic molecules in the presence and absence of external magnetic and AB flux fields using different potential models. We found that the effect of the Aharonov-Bohm field is much as it creates a wider shift for $m\

  8. Freezing of energy of a soliton in an external potential

    E-Print Network [OSTI]

    Dario Bambusi; Alberto Maspero

    2015-03-30

    In this paper we study the dynamics of a soliton in the generalized NLS with a small external potential $\\epsilon V$ of Schwartz class. We prove that there exists an effective mechanical system describing the dynamics of the soliton and that, for any positive integer $r$, the energy of such a mechanical system is almost conserved up to times of order $\\epsilon^{-r}$. In the rotational invariant case we deduce that the true orbit of the soliton remains close to the mechanical one up to times of order $\\epsilon^{-r}$.

  9. Spin echo without an external permanent magnetic field

    E-Print Network [OSTI]

    Joakim Bergli; Leonid Glazman

    2006-09-19

    The spin echo techniques aim at the elimination of the effect of a random magnetic field on the spin evolution. These techniques conventionally utlize the application of a permanent field which is much stronger than the random one. The strong field, however, may also modify the magnetic response of the medium containing the spins, thus altering their ``natural'' dynamics. We suggest an iterative scheme for generating a sequence of pulses which create an echo without an external permanent field. The approximation to the ideal echo improves with the sequence length.

  10. Superconductive magnetic energy storage (SMES) external fields and safety considerations

    SciTech Connect (OSTI)

    Polk, C. . Dept. of Electrical Engineering); Boom, R.W.; Eyssa, Y.M. . Applied Superconductivity Center)

    1992-01-01

    This paper addresses preferred SMES configurations and the external magnetic fields which they generate. Possible biological effects of fields are reviewed briefly. It is proposed that SMES units be fenced at the 10 gauss (1 mT) level to keep unrestricted areas safe, even for persons with cardiac pacemakers. For a full size 5000 MWh (1.8 {times} 10 {sup 13} J) SMES the magnetic field decreases to 10 gauss at a radial distance of 2 km from the center of the coil. Other considerations related to the environmental impact of large SMES magnetic fields are discussed briefly.

  11. Colloidal crystal growth at externally imposed nucleation clusters

    E-Print Network [OSTI]

    Sven van Teeffelen; Christos N. Likos; Hartmut Löwen

    2008-02-15

    We study the conditions under which and how an imposed cluster of fixed colloidal particles at prescribed positions triggers crystal nucleation from a metastable colloidal fluid. Dynamical density functional theory of freezing and Brownian dynamics simulations are applied to a two-dimensional colloidal system with dipolar interactions. The externally imposed nucleation clusters involve colloidal particles either on a rhombic lattice or along two linear arrays separated by a gap. Crystal growth occurs after the peaks of the nucleation cluster have first relaxed to a cutout of the stable bulk crystal.

  12. Enhancing Invenio Digital Library With An External Relevance Ranking Engine

    E-Print Network [OSTI]

    Glauner, Patrick Oliver

    Invenio is a comprehensive web-based free digital library software suite originally developed at CERN. In order to improve its information retrieval and word similarity ranking capabilities, the goal of this thesis is to enhance Invenio by bridging it with modern external information retrieval systems. In the first part a comparison of various information retrieval systems such as Solr and Xapian is made. In the second part a system-independent bridge for word similarity ranking is designed and implemented. Subsequently, Solr and Xapian are integrated in Invenio via adapters to the bridge. In the third part scalability tests are performed. Finally, a future outlook is briefly discussed.

  13. External Links | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorkingLosThe 26thI D- 6 0 4Contract ManagementHome »ExemptionsExternal Links

  14. External first quarter package (1-27-2012).xls

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submitKansasCommunitiesof Energy8)highlightsNew PhaseExposureExternal Advisory4,

  15. PV Fact Sheets Argument B1Some people state that "The external costs of PV electricity

    E-Print Network [OSTI]

    PV Fact Sheets Argument B1Some people state that "The external costs of PV electricity is much shows the external costs for current PV systems at Southern and Central European locations in addition to other costs". For current PV installations in South-Europe the external costs are about 0.15 per k

  16. A Report by the American Society of Civil Engineers Hurricane Katrina External Review Panel

    E-Print Network [OSTI]

    Maynard, J. Barry

    A Report by the American Society of Civil Engineers Hurricane Katrina External Review Panel wrong and why : a report / by the American Society of Civil Engineers Hurricane Katrina External Review, Stormproof. 3. Hurricane protection. I. American Society of Civil Engineers. Hurricane Katrina External

  17. A biped static balance control and torque pattern learning under unknown periodic external forces

    E-Print Network [OSTI]

    Ito, Satoshi

    A biped static balance control and torque pattern learning under unknown periodic external forces balancing task in which an unknown external force is exerted, using so-called `ankle strategy' model. When an external force is pe- riodic, a human adaptively maintains the balance, next learns how much force should

  18. Dielectric anisotropy in polar solvents under external fields

    E-Print Network [OSTI]

    Sahin Buyukdagli

    2015-07-23

    We investigate dielectric saturation and increment in polar liquids under external fields. We couple a previously introduced dipolar solvent model to a uniform electric field and derive the electrostatic kernel of interacting dipoles. This procedure allows an unambiguous definition of the liquid dielectric permittivity embodying non-linear dielectric response and correlation effects.We find that the presence of the external field results in a dielectric anisotropy characterized by a two-component dielectric permittivity tensor. The increase of the electric field amplifies the permittivity component parallel to the field direction, i.e. dielectric increment is observed along the field. However, the perpendicular component is lowered below the physiological permittivity, indicating dielectric saturation perpendicular to the field. By comparison with Molecular Dynamics simulations from the literature, we show that the mean-field level dielectric response theory underestimates dielectric saturation. The inclusion of dipolar correlations at the weak-coupling level intensify the mean-field level dielectric saturation and improves the agreement with simulation data at weak electric fields. The correlation-corrected theory predicts as well the presence of a metastable configuration corresponding to the antiparallel alignment of dipoles with the field. This prediction can be verified by solvent-explicit simulations where solvent molecules are expected to be trapped transiently in this metastable state.

  19. Thermodynamic Branch in the Chemical System Response to External Impact

    E-Print Network [OSTI]

    B. Zilbergleyt

    2012-03-20

    The paper gives an account of a detailed investigation of the thermodynamic branch as a path of the chemical system deviation from its isolated thermodynamic equilibrium under an external impact. For a combination of direct and reverse reactions in the same chemical system, full thermodynamic branch is presented by an S-shaped curve, whose ends asymptotically achieve appropriate initial states, which, in turn, are logistic ends of the opposite reactions. The slope tangents of the steepest parts of the curves, the areas of the maximum rate of the shift growth vs. the external thermodynamic force, occurred to be directly proportional to the force and, simultaneously, linearly proportional to the thermodynamic equivalent of chemical reaction, which is the ratio between the amount in moles of any reaction participant, transformed in an isolated system, along the reaction way from its initial state to thermodynamic equilibrium, to its stoichiometric coefficient. The found linearity is valid for arbitrary combination of the stoichiometric coefficients in a reaction of compound synthesis from chemical elements like aA+bB=AaBb, and confirms the exclusive role of the thermodynamic equivalent of transformation as the chemical system characteristic of robustness and irreversibility. Results of this work allow for quantitative evaluation of the chemical system shift from thermodynamic equilibrium along thermodynamic branch and its rate vs. the shifting force. Such an investigation became possible due to the development of discrete thermodynamics of chemical equilibria.

  20. External pressure limitations for 0--15 psi storage tanks

    SciTech Connect (OSTI)

    Dib, M.W. [ICF Kaiser Hanford Co., Richland, WA (United States); Shrivastava, H.P. [Westinghouse Hanford Co., Richland, WA (United States)

    1995-12-01

    Large cylindrical storage tanks are designed in accordance with design rules of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code, Section 3, Subsection NC, Article NC-3900 or American Petroleum Institute (API) Standard 620. Both of these Codes have identical requirements. These Codes provide a limit on the partial vacuum in the gas or vapor space not to exceed 1 oz/in{sup 2} to ensure stability of cylindrical walls against collapse. This criterion seems to be too conservative for the underground double shell storage tanks to be built at Hanford for the Department of Energy. The analysis presented herein shows that the bottom plate of the Hanford tank is the most critical component when an empty tank is subjected to partial vacuum. However, the allowable external pressures for both cylindrical walls and the bottom plate are significantly higher than 1 oz/in{sup 2}. The allowable external pressure for the bottom plate is largely dependent upon the plate uplift considerations which in turns depends on the plate thickness. The large displacement non-linear elastic analyses and the eigenvalue buckling solutions indicate that considerable wrinkling can occur before a snap-through buckling failure occurs.

  1. Computer simulations of single particles in external electric fields

    E-Print Network [OSTI]

    Jiajia Zhou; Friederike Schmid

    2015-07-20

    Applying electric fields is an attractive way to control and manipulate single particles or molecules, e.g., in lab-on-a-chip devices. However, the response of nanosize objects in electrolyte solution to external fields is far from trivial. It is the result of a variety of dynamical processes taking place in the ion cloud surrounding charged particles and in the bulk electrolyte, and it is governed by an intricate interplay of electrostatic and hydrodynamic interactions. Already systems composed of one single particle in electrolyte solution exhibit a complex dynamical behaviour. In this review, we discuss recent coarse-grained simulations that have been performed to obtain a molecular-level understanding of the dynamic and dielectric response of single particles and single macromolecules to external electric fields. We address both the response of charged particles to constant fields (DC fields), which can be characterized by an electrophoretic mobility, and the dielectric response of both uncharged and charged particles to alternating fields (AC fields), which is described by a complex polarizability. Furthermore, we give a brief survey of simulation algorithms and highlight some recent developments.

  2. RSNA 2002: Image Fusion Image Fusion

    E-Print Network [OSTI]

    Pelizzari, Charles A.

    RSNA 2002: Image Fusion Image Fusion: Introduction to the Technology Charles A. Pelizzari, Ph.D. Department of Radiation and Cellular Oncology The University of Chicago #12;RSNA 2002: Image Fusion "Fusion and limitations) ·Where do we need to go? (future directions) #12;RSNA 2002: Image Fusion Terminology

  3. Policy on agreements with external consultants and firms 1 Current Revision: 01/2013 Policy on agreements with external consultants and

    E-Print Network [OSTI]

    Hammack, Richard

    Policy on agreements with external consultants and firms 1 Current Revision: 01/2013 Policy on agreements with external consultants and firms Policy Type: Local Responsible Office: Development and Alumni Relations Initial Policy Approved: 05/2009 Revised Policy Approved: 1/2013 Policy Statement

  4. Hanford External Dosimetry Technical Basis Manual PNL-MA-842

    SciTech Connect (OSTI)

    Rathbone, Bruce A.

    2007-03-12

    The Hanford External Dosimetry Technical Basis Manual PNL-MA-842 documents the design and implementation of the external dosimetry system used at Hanford. The manual describes the dosimeter design, processing protocols, dose calculation methodology, radiation fields encountered, dosimeter response characteristics, limitations of dosimeter design under field conditions, and makes recommendations for effective use of the dosimeters in the field. The manual describes the technical basis for the dosimetry system in a manner intended to help ensure defensibility of the dose of record at Hanford and to demonstrate compliance with 10 CFR 835, DOELAP, DOE-RL, ORP, PNSO, and Hanford contractor requirements. The dosimetry system is operated by PNNL’s Hanford External Dosimetry Program (HEDP) which provides dosimetry services to all Hanford contractors. The primary users of this manual are DOE and DOE contractors at Hanford using the dosimetry services of PNNL. Development and maintenance of this manual is funded directly by DOE and DOE contractors. Its contents have been reviewed and approved by DOE and DOE contractors at Hanford through the Hanford Personnel Dosimetry Advisory Committee (HPDAC) which is chartered and chaired by DOE-RL and serves as means of coordinating dosimetry practices across contractors at Hanford. This manual was established in 1996. Since inception, it has been revised many times and maintained by PNNL as a controlled document with controlled distribution. Rev. 0 marks the first revision to be released through PNNL’s Electronic Records & Information Capture Architecture (ERICA) database. Revision numbers that are whole numbers reflect major revisions typically involving changes to all chapters in the document. Revision numbers that include a decimal fraction reflect minor revisions, usually restricted to selected chapters or selected pages in the document. Revision Log: Rev. 0 (2/25/2005) Major revision and expansion. Rev. 0.1 (3/12/2007) Minor revision. Updated Chapters 5, 6 and 9 to reflect change in default ring calibration factor used in HEDP dose calculation software. Factor changed from 1.5 to 2.0 beginning January 1, 2007. Pages on which changes were made are as follows: 5.23, 5.69, 5.78, 5.80, 5.82, 6.3, 6.5, 6.29, 9.2.

  5. Hanford External Dosimetry Technical Basis Manual PNL-MA-842

    SciTech Connect (OSTI)

    Rathbone, Bruce A.

    2011-04-04

    The Hanford External Dosimetry Technical Basis Manual PNL-MA-842 documents the design and implementation of the external dosimetry system used at the U.S. Department of Energy (DOE) Hanford site. The manual describes the dosimeter design, processing protocols, dose calculation methodology, radiation fields encountered, dosimeter response characteristics, limitations of dosimeter design under field conditions, and makes recommendations for effective use of the dosimeters in the field. The manual describes the technical basis for the dosimetry system in a manner intended to help ensure defensibility of the dose of record at Hanford and to demonstrate compliance with requirements of 10 CFR 835, the DOE Laboratory Accreditation Program, the DOE Richland Operations Office, DOE Office of River Protection, DOE Pacific Northwest Office of Science, and Hanford’s DOE contractors. The dosimetry system is operated by the Pacific Northwest National Laboratory (PNNL) Hanford External Dosimetry Program which provides dosimetry services to PNNL and all Hanford contractors. The primary users of this manual are DOE and DOE contractors at Hanford using the dosimetry services of PNNL. Development and maintenance of this manual is funded directly by DOE and DOE contractors. Its contents have been reviewed and approved by DOE and DOE contractors at Hanford through the Hanford Personnel Dosimetry Advisory Committee which is chartered and chaired by DOE-RL and serves as means of coordinating dosimetry practices across contractors at Hanford. This manual was established in 1996. Since its inception, it has been revised many times and maintained by PNNL as a controlled document with controlled distribution. The first revision to be released through PNNL’s Electronic Records & Information Capture Architecture database was designated Revision 0. Revision numbers that are whole numbers reflect major revisions typically involving significant changes to all chapters in the document. Revision numbers that include a decimal fraction reflect minor revisions, usually restricted to selected chapters or selected pages in the document. Maintenance and distribution of controlled hard copies of the manual by PNNL was discontinued beginning with Revision 0.2.

  6. Hanford External Dosimetry Technical Basis Manual PNL-MA-842

    SciTech Connect (OSTI)

    Rathbone, Bruce A.

    2010-04-01

    The Hanford External Dosimetry Technical Basis Manual PNL-MA-842 documents the design and implementation of the external dosimetry system used at the U.S. Department of Energy (DOE) Hanford site. The manual describes the dosimeter design, processing protocols, dose calculation methodology, radiation fields encountered, dosimeter response characteristics, limitations of dosimeter design under field conditions, and makes recommendations for effective use of the dosimeters in the field. The manual describes the technical basis for the dosimetry system in a manner intended to help ensure defensibility of the dose of record at Hanford and to demonstrate compliance with requirements of 10 CFR 835, the DOE Laboratory Accreditation Program, the DOE Richland Operations Office, DOE Office of River Protection, DOE Pacific Northwest Office of Science, and Hanford’s DOE contractors. The dosimetry system is operated by the Pacific Northwest National Laboratory (PNNL) Hanford External Dosimetry Program which provides dosimetry services to PNNL and all Hanford contractors. The primary users of this manual are DOE and DOE contractors at Hanford using the dosimetry services of PNNL. Development and maintenance of this manual is funded directly by DOE and DOE contractors. Its contents have been reviewed and approved by DOE and DOE contractors at Hanford through the Hanford Personnel Dosimetry Advisory Committee which is chartered and chaired by DOE-RL and serves as means of coordinating dosimetry practices across contractors at Hanford. This manual was established in 1996. Since its inception, it has been revised many times and maintained by PNNL as a controlled document with controlled distribution. The first revision to be released through PNNL’s Electronic Records & Information Capture Architecture database was designated Revision 0. Revision numbers that are whole numbers reflect major revisions typically involving significant changes to all chapters in the document. Revision numbers that include a decimal fraction reflect minor revisions, usually restricted to selected chapters or selected pages in the document. Maintenance and distribution of controlled hard copies of the manual by PNNL was discontinued beginning with Revision 0.2.

  7. Application of largest Lyapunov exponent analysis on the studies of dynamics under external forces

    E-Print Network [OSTI]

    Jovan Odavic; Petar Mali; Jasmina Tekic; Milan Pantic; Milica Pavkov Hrvojevic

    2015-10-25

    Dynamics of driven Frenkel-Kontorova model is examined by using largest Lyapunov exponent computational technique. Obtained results show that comparing to the usual way where behavior of the system in the presence of external forces is examined by analyzing its dynamical response function, the largest Lyapunov exponent analysis often represents a better tool to estimate the system dynamics. In the dc driven system, the critical depinning force that needs to be applied on particular structure could be estimated according to the largest Lyapunov exponent. In the dc+ac driven system, calculation of the largest Lyapunov exponent not only offers the most accurate way to detect the presence of Shapiro steps but completely reflects the amplitude dependence of the step size and the critical depinning force. The largest Lyapunov exponent as a function of the ac amplitude calculated in the pinned regime represents a mirror image of the amplitude dependence of the critical depinning force obtained from the dynamical response function when both forces are applied.

  8. Chirality-preserving neutrino oscillations in an external magnetic field

    E-Print Network [OSTI]

    Juan Carlos D'Olivo; Jose F. Nieves

    1996-06-03

    Neutrinos propagating in matter acquire an effective electromagnetic vertex induced by their weak interactions with the charged particles in the background. In the presence of an external magnetic field the induced vertex affects the flavor transformations of mixed neutrinos in a way that, in contrast to the oscillations driven by an intrinsic magnetic moment interaction, preserve chirality. We derive the evolution equation for this case and discuss some of the physical consequences in environments such as a supernova. For small values of the square mass difference the resonance for neutrinos and antineutrinos occur within regions which are close. In that case, the resonance condition becomes independent of the vacuum parameters and is approximately the same for both.

  9. Hanford External Dosimetry Technical Basis Manual PNL-MA-842

    SciTech Connect (OSTI)

    Rathbone, Bruce A.

    2010-01-01

    The Hanford External Dosimetry Technical Basis Manual PNL-MA-842 documents the design and implementation of the external dosimetry system used at Hanford. The manual describes the dosimeter design, processing protocols, dose calculation methodology, radiation fields encountered, dosimeter response characteristics, limitations of dosimeter design under field conditions, and makes recommendations for effective use of the dosimeters in the field. The manual describes the technical basis for the dosimetry system in a manner intended to help ensure defensibility of the dose of record at Hanford and to demonstrate compliance with 10 CFR 835, DOELAP, DOE-RL, ORP, PNSO, and Hanford contractor requirements. The dosimetry system is operated by PNNL’s Hanford External Dosimetry Program (HEDP) which provides dosimetry services to all Hanford contractors. The primary users of this manual are DOE and DOE contractors at Hanford using the dosimetry services of PNNL. Development and maintenance of this manual is funded directly by DOE and DOE contractors. Its contents have been reviewed and approved by DOE and DOE contractors at Hanford through the Hanford Personnel Dosimetry Advisory Committee (HPDAC) which is chartered and chaired by DOE-RL and serves as means of coordinating dosimetry practices across contractors at Hanford. This manual was established in 1996. Since its inception, it has been revised many times and maintained by PNNL as a controlled document with controlled distribution. The first revision to be released through PNNL’s Electronic Records & Information Capture Architecture (ERICA) database was designated Revision 0. Revision numbers that are whole numbers reflect major revisions typically involving significant changes to all chapters in the document. Revision numbers that include a decimal fraction reflect minor revisions, usually restricted to selected chapters or selected pages in the document. Maintenance and distribution of controlled hard copies of the manual by PNNL was discontinued beginning with Revision 0.2. Revision Log: Rev. 0 (2/25/2005) Major revision and expansion. Rev. 0.1 (3/12/2007) Updated Chapters 5, 6 and 9 to reflect change in default ring calibration factor used in HEDP dose calculation software. Factor changed from 1.5 to 2.0 beginning January 1, 2007. Pages on which changes were made are as follows: 5.23, 5.69, 5.78, 5.80, 5.82, 6.3, 6.5, 6.29, and 9.2. Rev 0.2 (8/28/2009) Updated Chapters 3, 5, 6, 8 and 9. Chapters 6 and 8 were significantly expanded. References in the Preface and Chapters 1, 2, 4, and 7 were updated to reflect updates to DOE documents. Approved by HPDAC on 6/2/2009. Rev 1.0 (1/1/2010) Major revision. Updated all chapters to reflect the Hanford site wide implementation on January 1, 2010 of new DOE requirements for occupational radiation protection. The new requirements are given in the June 8, 2007 amendment to 10 CFR 835 Occupational Radiation Protection (Federal Register, June 8, 2007. Title 10 Part 835. U.S., Code of Federal Regulations, Vol. 72, No. 110, 31904-31941). Revision 1.0 to the manual replaces ICRP 26 dosimetry concepts and terminology with ICRP 60 dosimetry concepts and terminology and replaces external dose conversion factors from ICRP 51 with those from ICRP 74 for use in measurement of operational quantities with dosimeters. Descriptions of dose algorithms and dosimeter response characteristics, and field performance were updated to reflect changes in the neutron quality factors used in the measurement of operational quantities.

  10. Hydraulic External Pre-Isolator System for LIGO

    E-Print Network [OSTI]

    Wen, S; Mason, K; Giaime, J; Abbott, R; Kern, J; O'Reilly, B; Bork, R; Hammond, M; Hardham, C; Lantz, B; Hua, W; Coyne, D; Traylor, G; Overmier, H; Evans, T; Hanson, J; Spjeld, O; Macinnis, M; Mailand, K; Sellers, D; Carter, K; Sarin, P

    2013-01-01

    The Hydraulic External Pre-Isolator (HEPI) is the first 6 degrees of freedom active seismic isolation system implemented at the Laser Interferometer Gravitational Wave Observatory (LIGO). Implementation was first completed at the LIGO Livingston Observatory (LLO) prior to LIGO's 5th science run, successfully cutting down the disturbance seen by LLO's suspended optics in the two most prominent seismic disturbance bands, the microseism (0.1-0.3Hz) and the anthropogenic (1-3Hz) bands, by a factor of a few to tens. The improvement in seismic isolation contributed directly to LLO's much improved duty cycle of 66.7% and LIGO's triple coincident duty cycle of 53%. We report the design, control scheme, and isolation performance of HEPI at LLO in this paper. Aided with this success, funding for incorporating HEPI into the LIGO Hanford Observatory was approved and installation is currently underway.

  11. GRAVITATIONAL INFALL ONTO MOLECULAR FILAMENTS. II. EXTERNALLY PRESSURIZED CYLINDERS

    SciTech Connect (OSTI)

    Heitsch, Fabian

    2013-10-10

    Two aspects of the evolution of externally pressurized, hydrostatic filaments are discussed. (1) The free-fall accretion of gas onto such a filament will lead to filament parameters (specifically, FWHM-column-density relations) inconsistent with the observations of Arzoumanian et al., except for two cases: for low-mass, isothermal filaments, agreement is found as in the analysis by Fischera and Martin. Magnetized cases, for which the field scales weakly with the density as B?n {sup 1/2}, also reproduce observed parameters. (2) Realistically, the filaments will be embedded not only in gas of non-zero pressure, but also of non-zero density. Thus, the appearance of sheet-embedded filaments is explored. Generating a grid of filament models and comparing the resulting column density ratios and profile shapes with observations suggests that the three-dimensional filament profiles are intrinsically flatter than isothermal, beyond projection and evolution effects.

  12. Case histories of external microbiologically influenced corrosion underneath disbonded coatings

    SciTech Connect (OSTI)

    Pikas, J.L.

    1996-08-01

    External microbiological influenced corrosion (MIC) underneath disbanded pipeline coating systems is a serious dilemma in the industry. In the past and even today, it has not been recognized as such because it has been primarily mistaken for galvanic corrosion. Due to the type of coating materials used in the past, the cleaning process or lack of it, and application methods used, all coating systems have the propensity to develop defects and pinholes where disbandment and this type of microbial corrosion could occur. In addition, the pipeline may or may not have had cathodic protection initially and/or consistently applied. Given these factors and the interaction of bacteria from the soil, moisture availability, and temperature of the pipeline, this paper will discuss the role that microbes play in the disbandment process, thus resulting in corrosion of an underground pipeline. Several case histories, laboratory results, and field findings will be presented.

  13. Exergetic, thermal, and externalities analyses of a cogeneration plant

    SciTech Connect (OSTI)

    Bailey, M.B.; Curtiss, P.; Blanton, P.H.; McBrayer, T.B.

    2006-02-15

    A thermodynamic study of an 88.4 MW cogeneration plant located in the United States is presented in this paper. The feedstock for this actual plant is culm, the waste left from anthracite coal mining. Before combustion in circulating fluidized bed boilers, the usable carbon within the culm is separated from the indigenous rock. The rock and ash waste from the combustion process fill adjacent land previously scared by strip mining. Trees and grass are planted in these areas as part of a land reclamation program. Analyses based on the first and second laws of thermodynamics using actual operating data are first presented to acquaint the reader with the plant's components and operation. Using emission and other relevant environmental data from the plant, all externalities study is outlined that estimates the plant's effect on the local population. The results show that the plant's cycle performs with a coefficient of utilization of 29% and all approximate exergetic efficiency of 34.5%. In order to increase these values, recommended improvements to the plant are noted. In addition, the externality costs associated with the estimated SO{sub 2} and NOx discharge from the culm fed plant are lower (85-95%) than those associated with a similarly sized coal fed plant. The plant's cycle efficiencies are lower than those associated with more modern technologies; such as all integrated gas turbine combined cycle. However, given the abundant, inexpensive supply of feedstock located adjacent to the plant and the environmental benefit of removing culm banks, the plant's existing operation is unique from an economical and environmental viewpoint.

  14. Estimating externalities of biomass fuel cycles, Report 7

    SciTech Connect (OSTI)

    Barnthouse, L.W.; Cada, G.F.; Cheng, M.-D.; Easterly, C.E.; Kroodsma, R.L.; Lee, R.; Shriner, D.S.; Tolbert, V.R.; Turner, R.S.

    1998-01-01

    This report documents the analysis of the biomass fuel cycle, in which biomass is combusted to produce electricity. The major objectives of this study were: (1) to implement the methodological concepts which were developed in the Background Document (ORNL/RFF 1992) as a means of estimating the external costs and benefits of fuel cycles, and by so doing, to demonstrate their application to the biomass fuel cycle; (2) to develop, given the time and resources, a range of estimates of marginal (i.e., the additional or incremental) damages and benefits associated with selected impact-pathways from a new wood-fired power plant, using a representative benchmark technology, at two reference sites in the US; and (3) to assess the state of the information available to support energy decision making and the estimation of externalities, and by so doing, to assist in identifying gaps in knowledge and in setting future research agendas. The demonstration of methods, modeling procedures, and use of scientific information was the most important objective of this study. It provides an illustrative example for those who will, in the future, undertake studies of actual energy options and sites. As in most studies, a more comprehensive analysis could have been completed had budget constraints not been as severe. Particularly affected were the air and water transport modeling, estimation of ecological impacts, and economic valuation. However, the most important objective of the study was to demonstrate methods, as a detailed example for future studies. Thus, having severe budget constraints was appropriate from the standpoint that these studies could also face similar constraints. Consequently, an important result of this study is an indication of what can be done in such studies, rather than the specific numerical estimates themselves.

  15. Quasar Image Shifts due to Gravitational Microlensing

    E-Print Network [OSTI]

    Geraint F. Lewis; Rodrigo A. Ibata

    1998-02-23

    Gravitational microlensing of quasars by stars in external galaxies can introduce fluctuations in the centroid of the ``point-like'' macro--images. The induced shifts are extremely small, on micro--arcsecond scales, below the limits of current optical observations. However, such shifts will become measurable with the proposed ``Space Interferometry'' mission, due to fly in 2005. The degree of the centroid shifts and their application as probes of both quasar structure and the stellar mass function in the lensing galaxy are discussed.

  16. Sandia Energy - Advanced Imaging

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

    Advanced Imaging Home Transportation Energy Predictive Simulation of Engines Reacting Flow Experiments Advanced Imaging Advanced ImagingAshley Otero2015-10-30T01:47:37+00:00...

  17. Safety design approach for external events in Japan sodium-cooled fast reactor

    SciTech Connect (OSTI)

    Yamano, H.; Kubo, S. [Japan Atomic Energy Agency, 4002 Narita-cho, O-arai, Ibaraki, 311-1393 (Japan); Tani, A. [Mitsubishi FBR Systems, Inc., 2-34-17, Jingumae, Shibuya-ku, Tokyo, 150-0001 (Japan); Nishino, H.; Sakai, T. [Japan Atomic Energy Agency, 4002 Narita-cho, O-arai, Ibaraki, 311-1393 (Japan)

    2012-07-01

    This paper describes a safety design approach for external events in the design study of Japan sodium-cooled fast reactor. An emphasis is introduction of a design extension external condition (DEEC). In addition to seismic design, other external events such as tsunami, strong wind, abnormal temperature, etc. were addressed in this study. From a wide variety of external events consisting of natural hazards and human-induced ones, a screening method was developed in terms of siting, consequence, frequency to select representative events. Design approaches for these events were categorized on the probabilistic, statistical and deterministic basis. External hazard conditions were considered mainly for DEECs. In the probabilistic approach, the DEECs of earthquake, tsunami and strong wind were defined as 1/10 of exceedance probability of the external design bases. The other representative DEECs were also defined based on statistical or deterministic approaches. (authors)

  18. Image Georeferencing Lesson 4: Image Georeferencing

    E-Print Network [OSTI]

    Butler, Christopher J.

    vector digitizing. You should read the section "Coordinate Transformation", in Chapter 4 of the GIS georeferencing, also known as image registration or image transformation. We'll then update a data layers through mapping vegetation, wetlands, and land use change. While many images are provided in digital formats

  19. Fermilab | Press Room | Images

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

    Fermilab constructs pioneering accelerator test facility: photos, videos & graphics Click on links below images for medium and high-resolution jpeg images. When using this...

  20. 2014-10-02 Issuance: Energy Conservation Program: Test Procedures for External Power Supplies, Notice of Proposed Rulemaking

    Broader source: Energy.gov [DOE]

    Energy Conservation Program: Test Procedures for External Power Supplies, Notice of Proposed Rulemaking

  1. Report of the External Expert Peer Review Panel: DOE Benefits Forecasts

    SciTech Connect (OSTI)

    2009-01-18

    A report for the FY 2007 GPRA methodology review, highlighting the views of an external expert peer review panel on DOE benefits forecasts.

  2. Prediction-based trajectory tracking of External Gas Recirculation for turbocharged SI Engines

    E-Print Network [OSTI]

    Prediction-based trajectory tracking of External Gas Recirculation for turbocharged SI Engines with direct injection, turbocharger and Variable Valve Timing (VVT) actuators [21]. Such a setup

  3. Cerenkov emission induced by external beam radiation stimulates molecular fluorescence

    SciTech Connect (OSTI)

    Axelsson, Johan; Davis, Scott C.; Gladstone, David J.; Pogue, Brian W.

    2011-07-15

    Purpose: Cerenkov emission is induced when a charged particle moves faster than the speed of light in a given medium. Both x-ray photons and electrons produce optical Cerenkov photons in everyday radiation therapy of tissue; yet, this phenomenon has never been fully documented. This study quantifies the emissions and also demonstrates that the Cerenkov emission can excite a fluorophore, protoporphyrin IX (PpIX), embedded in biological phantoms. Methods: In this study, Cerenkov emission induced by radiation from a clinical linear accelerator is investigated. Biological mimicking phantoms were irradiated with x-ray photons, with energies of 6 or 18 MV, or electrons at energies 6, 9, 12, 15, or 18 MeV. The Cerenkov emission and the induced molecular fluorescence were detected by a camera or a spectrometer equipped with a fiber optic cable. Results: It is shown that both x-ray photons and electrons, at MeV energies, produce optical Cerenkov photons in tissue mimicking media. Furthermore, we demonstrate that the Cerenkov emission can excite a fluorophore, protoporphyrin IX (PpIX), embedded in biological phantoms. Conclusions: The results here indicate that molecular fluorescence monitoring during external beam radiotherapy is possible.

  4. Orientational hysteresis in swarms of active particles in external field

    E-Print Network [OSTI]

    Maksym Romensky; Vladimir Lobaskin

    2015-05-28

    Structure and ordering in swarms of active particles have much in common with condensed matter systems like magnets or liquid crystals. A number of important characteristics of such materials can be obtained via dynamic tests such as hysteresis. In this work, we show that dynamic hysteresis can be observed also in swarms of active particles and possesses similar properties to the counterparts in magnetic materials. To study the swarm dynamics, we use computer simulations of the active Brownian particle model with dissipative interactions. The swarm is confined to a narrow linear channel and the one-dimensional polar order parameter is measured. In an oscillating external field, the order parameter demonstrates dynamic hysteresis with the shape of the loop and its area varying with the amplitude and frequency of the applied field, swarm density and the noise intensity. We measure the scaling exponents for the hysteresis loop area, which can be associated with the controllability of the swarm. Although the exponents are non-universal and depend on the system's parameters, their limiting values can be predicted using a generic model of dynamic hysteresis. We also discuss similarities and differences between the swarm ordering dynamics and two-dimensional magnets.

  5. EXTERNAL PHOTOEVAPORATION OF THE SOLAR NEBULA: JUPITER's NOBLE GAS ENRICHMENTS

    SciTech Connect (OSTI)

    Monga, Nikhil; Desch, Steven [School of Earth and Space Exploration, Arizona State University, PO Box 871404, Tempe, AZ 85287-1404 (United States)

    2015-01-01

    We present a model explaining the elemental enrichments in Jupiter's atmosphere, particularly the noble gases Ar, Kr, and Xe. While He, Ne, and O are depleted, seven other elements show similar enrichments (?3 times solar, relative to H). Being volatile, Ar is difficult to fractionate from H{sub 2}. We argue that external photoevaporation by far-ultraviolet (FUV) radiation from nearby massive stars removed H{sub 2}, He, and Ne from the solar nebula, but Ar and other species were retained because photoevaporation occurred at large heliocentric distances where temperatures were cold enough (? 30 K) to trap them in amorphous water ice. As the solar nebula lost H, it became relatively and uniformly enriched in other species. Our model improves on the similar model of Guillot and Hueso. We recognize that cold temperatures alone do not trap volatiles; continuous water vapor production is also necessary. We demonstrate that FUV fluxes that photoevaporated the disk generated sufficient water vapor in regions ? 30 K to trap gas-phase species in amorphous water ice in solar proportions. We find more efficient chemical fractionation in the outer disk: whereas the model of Guillot and Hueso predicts a factor of three enrichment when only <2% of the disk mass remains, we find the same enrichments when 30% of the disk mass remains. Finally, we predict the presence of ?0.1 M {sub ?} of water vapor in the outer solar nebula and protoplanetary disks in H II regions.

  6. CHF Enhancement by Vessel Coating for External Reactor Vessel Cooling

    SciTech Connect (OSTI)

    Yang, J.; Dizon, M.B.; Cheung, F.B. [Department of Mechanical and Nuclear Engineering, Pennsylvania State University, University Park, PA 16802 (United States); Rempe, J.L. [Idaho National Engineering and Environmental Laboratory, P.O. Box 1625, Idaho Falls, ID (United States); Suh, K.Y. [Department of Nuclear Engineering, Seoul National University, Seoul (Korea, Republic of); Kim, S.B. [Korea Atomic Energy Research Institute, P.O. Box 105, Yuseoung, Taejon (Korea, Republic of)

    2004-07-01

    In-vessel retention (IVR) is a key severe accident management (SAM) strategy that has been adopted by some operating nuclear power plants and advanced light water reactors (ALWRs). One viable means for IVR is the method of external reactor vessel cooling (ERVC) by flooding of the reactor cavity during a severe accident. As part of a joint Korean - United States International Nuclear Energy Research Initiative (K-INERI), an experimental study has been conducted to investigate the viability of using an appropriate vessel coating to enhance the critical heat flux (CHF) limits during ERVC. Toward this end, transient quenching and steady-state boiling experiments were performed in the SBLB (Sub-scale Boundary Layer Boiling) facility at Penn State using test vessels with micro-porous aluminum coatings. Local boiling curves and CHF limits were obtained in these experiments. When compared to the corresponding data without coatings, substantial enhancement in the local CHF limits for the case with surface coatings was observed. Results of the steady state boiling experiments showed that micro-porous aluminum coatings were very durable. Even after many cycles of steady state boiling, the vessel coatings remained rather intact, with no apparent changes in color or structure. Moreover, the heat transfer performance of the coatings was found to be highly desirable with an appreciable CHF enhancement in all locations on the vessel outer surface but with very little effect of aging. (authors)

  7. CHF Enhancement by Vessel Coating for External Reactor Vessel Cooling

    SciTech Connect (OSTI)

    Fan-Bill Cheung; Joy L. Rempe

    2004-06-01

    In-vessel retention (IVR) is a key severe accident management (SAM) strategy that has been adopted by some operating nuclear power plants and advanced light water reactors (ALWRs). One viable means for IVR is the method of external reactor vessel cooling (ERVC) by flooding of the reactor cavity during a severe accident. As part of a joint Korean – United States International Nuclear Energy Research Initiative (K-INERI), an experimental study has been conducted to investigate the viability of using an appropriate vessel coating to enhance the critical heat flux (CHF) limits during ERVC. Toward this end, transient quenching and steady-state boiling experiments were performed in the SBLB (Subscale Boundary Layer Boiling) facility at Penn State using test vessels with micro-porous aluminum coatings. Local boiling curves and CHF limits were obtained in these experiments. When compared to the corresponding data without coatings, substantial enhancement in the local CHF limits for the case with surface coatings was observed. Results of the steady state boiling experiments showed that micro-porous aluminum coatings were very durable. Even after many cycles of steady state boiling, the vessel coatings remained rather intact, with no apparent changes in color or structure. Moreover, the heat transfer performance of the coatings was found to be highly desirable with an appreciable CHF enhancement in all locations on the vessel outer surface but with very little effect of aging.

  8. Externally heated valve engine -- An alternative to the Stirling engine

    SciTech Connect (OSTI)

    Kazimierski, Z.; Brzeski, L.

    1996-12-31

    A new concept of the Externally Heated Valve (EHV) engine is presented. The principle of the engine operation is described in the introduction to the paper. Heat delivered to the working medium (air) in the heater, or several heaters working commutatively, can come from a combustion chamber or other heat generator such as nuclear reactors or solar collectors. The engine construction is original entirely different from the well-known Stirling engine. New results of the EHV engine computer modeling are presented. This is connected with a new kind of the annular heater applied to the EHV engine. A whirl motion inside the heater is caused to ensure the proper condition of the heat exchanger during the whole engine cycle. Three heaters working commutatively have been considered in this model. Comparisons between the power and efficiency of the Stirling engine and EHV engine have been performed for the same engine capacity, rotational frequency, maximum and minimum temperatures of the working gas and for the same mean pressures of both the engine cycles. The power of the EHV engine is in this case over three times higher than the Stirling engine power, while the efficiency of both the engines is almost the same.

  9. COLLIMATION AND CONFINEMENT OF MAGNETIC JETS BY EXTERNAL MEDIA

    SciTech Connect (OSTI)

    Levinson, Amir; Begelman, Mitchell C. E-mail: mitch@jila.colorado.edu

    2013-02-20

    We study the collimation of a highly magnetized jet by a surrounding cocoon that forms as a result of the interaction of the jet with the external medium. We show that in regions where the jet is well confined by the cocoon, current-driven instabilities should develop over timescales shorter than the expansion time of the jet's head. We speculate that these instabilities would give rise to complete magnetic field destruction, whereby the jet undergoes a transition from high to low sigma above the collimation zone. Using this assumption, we construct a self-consistent model for the evolution of the jet-cocoon system in an ambient medium of arbitrary density profile. We apply the model to jet breakout in long gamma-ray bursts (GRBs) and show that the jet is highly collimated inside the envelope of the progenitor star and is likely to remain confined well after breakout. We speculate that this strong confinement may provide a channel for magnetic field conversion in GRB outflows, whereby the hot, low-sigma jet section thereby produced is the source of the photospheric emission observed in many bursts.

  10. Comparison of Test Procedures and Energy Efficiency Criteria in Selected International Standards & Labeling Programs for Copy Machines, External Power Supplies, LED Displays, Residential Gas Cooktops and Televisions

    E-Print Network [OSTI]

    Zheng, Nina

    2013-01-01

    Machines, External Power Supplies, LED Displays, Residentialmachines, external power supply, LED displays, residentialPower Supplies .. 6 LED

  11. The management of imaging dose during image-guided radiotherapy: Report of the AAPM Task Group 75

    SciTech Connect (OSTI)

    Murphy, Martin J.; Balter, James; Balter, Stephen; BenComo, Jose A. Jr.; Das, Indra J.; Jiang, Steve B.; Ma, C.-M.; Olivera, Gustavo H.; Rodebaugh, Raymond F.; Ruchala, Kenneth J.; Shirato, Hiroki; Yin, Fang-Fang [Department of Radiation Oncology, Virginia Commonwealth University, Richmond, Virginia 23298 (United States) and Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan 48109 (United States); Departments of Medicine and Radiology, Columbia University Medical Center, New York, New York 10021 (United States) and Department of Radiation Physics, M.D. Anderson Cancer Center, Houston, Texas 77030 (United States); Department of Radiation Oncology, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania 19104 (United States); Department of Radiation Oncology, University of California, San Diego, La Jolla, California 92093 (United States); Department of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania 19111 (United States); Department of Medical Physics, University of Wisconsin, Madison, Wisconsin 53706 (United States); St. Joseph's Hospital, Phoenix, Arizona 85013 (United States); TomoTherapy, Inc., Madison, Wisconsin 53717 (United States); Department of Radiology, Hokkaido University Hospital, Hokkaido (Japan); Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina 27710 (United States)

    2007-10-15

    Radiographic image guidance has emerged as the new paradigm for patient positioning, target localization, and external beam alignment in radiotherapy. Although widely varied in modality and method, all radiographic guidance techniques have one thing in common--they can give a significant radiation dose to the patient. As with all medical uses of ionizing radiation, the general view is that this exposure should be carefully managed. The philosophy for dose management adopted by the diagnostic imaging community is summarized by the acronym ALARA, i.e., as low as reasonably achievable. But unlike the general situation with diagnostic imaging and image-guided surgery, image-guided radiotherapy (IGRT) adds the imaging dose to an already high level of therapeutic radiation. There is furthermore an interplay between increased imaging and improved therapeutic dose conformity that suggests the possibility of optimizing rather than simply minimizing the imaging dose. For this reason, the management of imaging dose during radiotherapy is a different problem than its management during routine diagnostic or image-guided surgical procedures. The imaging dose received as part of a radiotherapy treatment has long been regarded as negligible and thus has been quantified in a fairly loose manner. On the other hand, radiation oncologists examine the therapy dose distribution in minute detail. The introduction of more intensive imaging procedures for IGRT now obligates the clinician to evaluate therapeutic and imaging doses in a more balanced manner. This task group is charged with addressing the issue of radiation dose delivered via image guidance techniques during radiotherapy. The group has developed this charge into three objectives: (1) Compile an overview of image-guidance techniques and their associated radiation dose levels, to provide the clinician using a particular set of image guidance techniques with enough data to estimate the total diagnostic dose for a specific treatment scenario (2) identify ways to reduce the total imaging dose without sacrificing essential imaging information, and (3) recommend optimization strategies to trade off imaging dose with improvements in therapeutic dose delivery. The end goal is to enable the design of image guidance regimens that are as effective and efficient as possible.

  12. Difference image analysis: Automatic kernel design using information criteria

    E-Print Network [OSTI]

    Bramich, D M; Alsubai, K A; Bachelet, E; Mislis, D; Parley, N

    2015-01-01

    We present a selection of methods for automatically constructing an optimal kernel model for difference image analysis which require very few external parameters to control the kernel design. Each method consists of two components; namely, a kernel design algorithm to generate a set of candidate kernel models, and a model selection criterion to select the simplest kernel model from the candidate models that provides a sufficiently good fit to the target image. We restricted our attention to the case of solving for a spatially-invariant convolution kernel composed of delta basis functions, and we considered 19 different kernel solution methods including six employing kernel regularisation. We tested these kernel solution methods by performing a comprehensive set of image simulations and investigating how their performance in terms of model error, fit quality, and photometric accuracy depends on the properties of the reference and target images. We find that the irregular kernel design algorithm employing unreg...

  13. Probabilistic Web Image Gathering

    E-Print Network [OSTI]

    Yanai, Keiji

    1 Probabilistic Web Image Gathering 1. Objective & background 2. Related work 3. Method 4, JAPAN (UEC) (Long-term) Objective of our Web Image Gathering Gather several hundreds of images associated with one concept from the Web without human intervention It's not image search. Non

  14. External Beam Radiotherapy for Colon Cancer: Patterns of Care

    SciTech Connect (OSTI)

    Dunn, Emily F., E-mail: dunn@humonc.wisc.ed [Department of Human Oncology, University of Wisconsin School of Medicine and Public Health, Madison, WI (United States); Kozak, Kevin R. [Department of Human Oncology, University of Wisconsin School of Medicine and Public Health, Madison, WI (United States); Moody, John S. [Division of Radiation Oncology, Moses Cone Regional Cancer Center, Greensboro, NC (United States)

    2010-04-15

    Purpose: Despite its common and well characterized use in other gastrointestinal malignancies, little is known about radiotherapy (RT) use in nonmetastatic colon cancer in the United States. To address the paucity of data regarding RT use in colon cancer management, we examined the RT patterns of care in this patient population. Methods and Materials: Patients with nonmetastatic colon cancer, diagnosed between 1988 and 2005, were identified in the Surveillance, Epidemiology, and End Results (SEER) database. Univariate and multivariate methods were used to identify factors associated with RT use. Results: On univariate analysis, tumor location, age, sex, race, T stage, N stage, and geographic location were each associated with differences in RT use (all p < 0.01). In general, younger patients, male patients, and patients with more advanced disease were more likely to receive RT. On multivariate analysis, tumor location, age, gender, T and N stage, time of diagnosis and geographic location were significantly associated with RT use (all p < 0.001). Race, however, was not associated with RT use. On multivariate analysis, patients diagnosed in 1988 were 2.5 times more likely to receive RT than those diagnosed in 2005 (p = 0.001). Temporal changes in RT use reflect a responsiveness to evolving evidence related to the therapeutic benefits of adjuvant RT. Conclusions: External beam RT is infrequently used for colon cancer, and its use varies according to patient and tumor characteristics. RT use has declined markedly since the late 1980s; however, it continues to be used for nonmetastatic disease in a highly individualized manner.

  15. Seismic Imaging and Monitoring

    SciTech Connect (OSTI)

    Huang, Lianjie

    2012-07-09

    I give an overview of LANL's capability in seismic imaging and monitoring. I present some seismic imaging and monitoring results, including imaging of complex structures, subsalt imaging of Gulf of Mexico, fault/fracture zone imaging for geothermal exploration at the Jemez pueblo, time-lapse imaging of a walkway vertical seismic profiling data for monitoring CO{sub 2} inject at SACROC, and microseismic event locations for monitoring CO{sub 2} injection at Aneth. These examples demonstrate LANL's high-resolution and high-fidelity seismic imaging and monitoring capabilities.

  16. Independent External Peer Review for the Clear Creek, Texas Flood Risk

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Independent External Peer Review for the Clear Creek, Texas Flood Risk Management General Institute 505 King Avenue Columbus, OH 43201 for U.S. Army Corps of Engineers Flood Risk Management Planning SERVICE (STAS) on Final Independent External Peer Review Report for Clear Creek, Texas Flood Risk

  17. Final Independent External Peer Review Report Cedar River Cedar Rapids, Iowa, Flood Risk

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Final Independent External Peer Review Report Cedar River ­ Cedar Rapids, Iowa, Flood Risk Prepared for Department of the Army U.S. Army Corps of Engineers Flood Risk Management Planning Center) on Final Independent External Peer Review Report Cedar River-Cedar Rapids, Iowa, Flood Risk Management

  18. Final Independent External Peer Review Report for the White Oak Bayou Federal Flood Damage

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Final Independent External Peer Review Report for the White Oak Bayou Federal Flood Damage Independent External Peer Review Report for the White Oak Bayou Federal Flood Damage Reduction Plan PEER REVIEW REPORT for the White Oak Bayou Federal Flood Damage Reduction Plan EXECUTIVE SUMMARY White

  19. The response of venation networks in growing leaves to external mechanical stress

    E-Print Network [OSTI]

    Adda-Bedia, Mokhtar

    The response of venation networks in growing leaves to external mechanical stress Yohai Bar-Sinai1 the coupling between vein patterns and growth. We first model the mechanics of a growing vascular network and study its response to external mechanical stress. We use the so-called texture tensor to quantify

  20. Final Independent External Peer Review Report Skagit River Basin Flood Risk Management

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Final Independent External Peer Review Report Skagit River Basin Flood Risk Management General of the Army U.S. Army Corps of Engineers Flood Risk Management Planning Center of Expertise Baltimore District Independent External Peer Review Report Skagit River Basin Flood Risk Management General Investigation, Skagit

  1. The Vlasov-Poisson system with strong external magnetic field. Finite Larmor radius regime

    E-Print Network [OSTI]

    Bostan, Mihai

    -scale character of the problem. Motivated by the magnetic confinement fusion (MCF) the study of strong magneticThe Vlasov-Poisson system with strong external magnetic field. Finite Larmor radius regime Mihai-Poisson equations with strong external magnetic field. The derivation of the limit model follows by formal expansion

  2. A Spatial Econometric Approach to Measuring Pollution Externalities: An Application to Ozone Smog

    E-Print Network [OSTI]

    Lin, C.-Y. Cynthia

    to analyze air pollution externalities. State-by-state source-receptor transfer coefficients that can be used of the six cri- teria pollutants for which National Ambient Air Quali- ty Standards have been establishedA Spatial Econometric Approach to Measuring Pollution Externalities: An Application to Ozone Smog C

  3. Static balance control and external force estimation using ground reaction forces

    E-Print Network [OSTI]

    Ito, Satoshi

    Static balance control and external force estimation using ground reaction forces Satoshi ITO1 In this paper, we consider a balance control with focus- ing on ground reaction forces. As an example of balance control, the static balance with constant external forces act- ing is treated. Ankle joint torque is used

  4. Auctions under Shareability and Externality Jinxiang Pei (peipauj@u.northwestern.edu)

    E-Print Network [OSTI]

    Karaesmen, Fikri

    . As a second example, a procurement contract can be split between suppliers and the buyer can take the advantage of the competition between the suppliers. A third example is when the externality be a feasible alternative. We study auctions with two features: shareability and externality. Shareability

  5. UTS:LIBRARY 0206/UTS:CRICOS CODE 00099F Library External Space

    E-Print Network [OSTI]

    University of Technology, Sydney

    UTS:LIBRARY 0206/UTS:CRICOS CODE 00099F Library External Space: CONDITIONS OF USE WWW.LIB.UTS.EDU.AU UTS LIBRARY: FACILITIES Blake Library (City Camp us) 1. The UTS Blake Library (City Campus) external of the UTS Library Corporate Services or an authorised delegated authority. Users must comply

  6. Independent External Peer Review Report Rough River Dam 18 August 2011 ii

    E-Print Network [OSTI]

    US Army Corps of Engineers

    #12;Independent External Peer Review Report ­ Rough River Dam 18 August 2011 ii This page intentionally blank. #12;Independent External Peer Review Report ­ Rough River Dam 18 August 2011 iii Table Panel Members B-1 Appendix C ­ Charge for IEPR Panel C-1 List of Figures Figure 1. Rough River Dam 4

  7. Marginal costs of freeway traffic congestion with on-road pollution exposure externality

    E-Print Network [OSTI]

    Bertini, Robert L.

    Marginal costs of freeway traffic congestion with on-road pollution exposure externality Alexander August 2012 Received in revised form 6 March 2013 Accepted 23 September 2013 Keywords: External costs Traffic congestion On-road In-vehicle Pollution exposure Vehicle emissions a b s t r a c t The health cost

  8. Image registration method for medical image sequences

    DOE Patents [OSTI]

    Gee, Timothy F.; Goddard, James S.

    2013-03-26

    Image registration of low contrast image sequences is provided. In one aspect, a desired region of an image is automatically segmented and only the desired region is registered. Active contours and adaptive thresholding of intensity or edge information may be used to segment the desired regions. A transform function is defined to register the segmented region, and sub-pixel information may be determined using one or more interpolation methods.

  9. Issues and methods in incorporating environmental externalities into the integrated resource planning process

    SciTech Connect (OSTI)

    Fang, J.M.; Galen, P.S.

    1994-11-01

    This report is a review of current practices and policies in considering environmental externalities in the integrated resource planning and performance based regulation (IRP/PBR) process. The following issues are presented and examined: What are the pros and cons of treating environmental externalities in the IRP process? How are potential future environmental regulations being treated? Are externalities being qualitatively or quantitatively considered, or monetized? Are offsets being allowed? How are externality policies being coordinated among different levels and branches of governments? Should environmental externalities be considered in dispatching a utility`s existing resources? What are the procedures for addressing uncertainty in incorporating environmental externalities into IRP? How are externalities valued? What are other approaches to addressing environmental externalities. This report describes seven major approaches for addressing environmental externalities in the IRP process: qualitative treatment, weighting and ranking, cost of control, damage function, percentage adders, monetization by emission, and multiattribute trade-off analysis. The discussion includes a taxonomy of the full range of alternative methods for addressing environmental externalities, a summary of state PUC actions, the role of state laws, the debate on environmental adders, and the choice of methodologies. In addition, this report characterizes the interests of stakeholders such as the electric industry, fuel suppliers, energy consumers, governmental agencies, public interest groups, consultants, and others. It appears that the views, positions, and interests of these stakeholders are affected by their perceptions of the potential impacts on their economic interests or the viability of their position on environmental policy, by the societal perspective they take, and by the orientation of the analysts toward market competition and their respective accumulated expertise.

  10. Copyright by SIAM. Unauthorized reproduction of this article is prohibited. SIAM J. IMAGING SCIENCES c 2010 Society for Industrial and Applied Mathematics

    E-Print Network [OSTI]

    Bertozzi, Andrea L.

    forces we use total variation­based inverse scale-space techniques on the input data. Furthermore, we use process is the external data, which can be images of any kind, such as photographs or magnetic resonance of California, Los Angeles, Los Angeles, CA 90095. Current address: Mental Images, Fasanenstr. 81, 10623 Berlin

  11. Process for guidance, containment, treatment, and imaging in a subsurface environment utilizing ferro-fluids

    DOE Patents [OSTI]

    Moridis, George J. (Oakland, CA); Oldenburg, Curtis M. (Mill Valley, CA)

    2001-01-01

    Disclosed are processes for monitoring and control of underground contamination, which involve the application of ferrofluids. Two broad uses of ferrofluids are described: (1) to control liquid movement by the application of strong external magnetic fields; and (2) to image liquids by standard geophysical methods.

  12. Abstract--Magnetic Resonance Imaging (MRI) guided nanorobotic systems that could perform diagnostic, curative

    E-Print Network [OSTI]

    Mavroidis, Constantinos

    groups have employed magnetized micro/ nanoparticles and have implemented magnetic propulsion techniquesAbstract-- Magnetic Resonance Imaging (MRI) guided nanorobotic systems that could perform on the use of a MRI scanner to induce the required external driving forces to guide magnetic nanocapsules

  13. Data requirements for valuing externalities: The role of existing permitting processes

    SciTech Connect (OSTI)

    Lee, A.D.; Baechler, M.C.; Callaway, J.M.

    1990-08-01

    While the assessment of externalities, or residual impacts, will place new demands on regulators, utilities, and developers, existing processes already require certain data and information that may fulfill some of the data needs for externality valuation. This paper examines existing siting, permitting, and other processes and highlights similarities and differences between their data requirements and the data required to value environmental externalities. It specifically considers existing requirements for siting new electricity resources in Oregon and compares them with the information and data needed to value externalities for such resources. This paper also presents several observations about how states can take advantage of data acquired through processes already in place as they move into an era when externalities are considered in utility decision-making. It presents other observations on the similarities and differences between the data requirements under existing processes and those for valuing externalities. This paper also briefly discusses the special case of cumulative impacts. And it presents recommendations on what steps to take in future efforts to value externalities. 35 refs., 2 tabs.

  14. Dynamical response of an excitatory-inhibitory neural network to external stimulation: An application to image segmentation

    E-Print Network [OSTI]

    Sinha, Sitabhra

    for Advanced Scientific Research, Bangalore 560 064, India 3 Machine Intelligence Unit, Indian Statistical Institute of Science, Bangalore 560 012, India 2 Condensed Matter Theory Unit, Jawaharlal Nehru Center Institute, Calcutta 700 035, India Received 14 December 2001; published 28 March 2002 Neural network models

  15. A compact chaotic laser device with a two-dimensional external cavity structure

    SciTech Connect (OSTI)

    Sunada, Satoshi Adachi, Masaaki; Fukushima, Takehiro; Shinohara, Susumu; Arai, Kenichi; Harayama, Takahisa

    2014-06-16

    We propose a compact chaotic laser device, which consists of a semiconductor laser and a two-dimensional (2D) external cavity for delayed optical feedback. The overall size of the device is within 230??m?×?1?mm. A long time delay sufficient for chaos generation can be achieved with the small area by the multiple reflections at the 2D cavity boundary, and the feedback strength is controlled by the injection current to the external cavity. We experimentally demonstrate that a variety of output properties, including chaotic output, can be selectively generated by controlling the injection current to the external cavity.

  16. Practical image based lighting 

    E-Print Network [OSTI]

    Lee, Jaemin

    2003-01-01

    information is lighting. Image based lighting that is developed to recover illumination information of the real world from photographs has recently been popular in computer graphics. In this thesis we present a practical image based lighting method. Our...

  17. Computational ghost imaging

    E-Print Network [OSTI]

    Shapiro, Jeffrey H.

    A computational ghost-imaging arrangement that uses only a single-pixel detector is described. It affords a new 3D sectioning capability and matches the resolution of pseudothermal ghost imaging.

  18. User Science Images

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

    Research | URL: https:www.fin.ucar.edunetpubserver.np?find&siteimagelibrary&catalogcatalog&templatedetail.np&fielditemid&opmatches&value3438 Download Image:...

  19. Analyzing and improving image quality in reflective ghost imaging

    E-Print Network [OSTI]

    Hardy, Nicholas D. (Nicholas David)

    2011-01-01

    Ghost imaging is a transverse imaging technique that relies on the correlation between a pair of light fields, one that has interacted with the object to be imaged and one that has not. Most ghost imaging experiments have ...

  20. Human Functional Brain Imaging

    E-Print Network [OSTI]

    Rambaut, Andrew

    Human Functional Brain Imaging 1990­2009 September 2011 Portfolio Review #12;2 | Portfolio Review: Human Functional Brain ImagingThe Wellcome Trust is a charity registered in England and Wales, no's role in supporting human functional brain imaging and have informed `our' speculations for the future

  1. Human Functional Brain Imaging

    E-Print Network [OSTI]

    Rambaut, Andrew

    Human Functional Brain Imaging 1990­2009 September 2011 Portfolio Review Summary Brain Imaging #12 Dale ­ one of our first Trustees. Understanding the brain remains one of our key strategic aims today three-fold: · to identify the key landmarks and influences on the human functional brain imaging

  2. Image Sensor Application

    E-Print Network [OSTI]

    Stanford University

    ; #12; #12; Image Sensor Lens Metadata Actions Flash ... Application Processor Con gure 1 and Statistics #12; Image Sensor Lens Metadata Actions Flash ... Application Processor Con gure 1 Expose 2 and Statistics #12; Image Sensor Lens Metadata Actions Flash ... Application Processor Con gure 1 Expose 2

  3. Medical imaging systems

    DOE Patents [OSTI]

    Frangioni, John V

    2013-06-25

    A medical imaging system provides simultaneous rendering of visible light and diagnostic or functional images. The system may be portable, and may include adapters for connecting various light sources and cameras in open surgical environments or laparascopic or endoscopic environments. A user interface provides control over the functionality of the integrated imaging system. In one embodiment, the system provides a tool for surgical pathology.

  4. Near-electrode imager

    DOE Patents [OSTI]

    Rathke, Jerome W. (Lockport, IL); Klingler, Robert J. (Westmont, IL); Woelk, Klaus (Wachtberg, DE); Gerald, II, Rex E. (Brookfield, IL)

    2000-01-01

    An apparatus, near-electrode imager, for employing nuclear magnetic resonance imaging to provide in situ measurements of electrochemical properties of a sample as a function of distance from a working electrode. The near-electrode imager uses the radio frequency field gradient within a cylindrical toroid cavity resonator to provide high-resolution nuclear magnetic resonance spectral information on electrolyte materials.

  5. Automation in image cytometry : continuous HCS and kinetic image cytometry

    E-Print Network [OSTI]

    Charlot, David J.

    2012-01-01

    OF CALIFORNIA, SAN DIEGO Automation in Image Cytometry:xiv Abstract of Dissertation Automation in Image Cytometry:

  6. Prediction of Multi-Physics Behaviors of Large Lithium-Ion Batteries During Internal and External Short Circuit (Presentation)

    SciTech Connect (OSTI)

    Kim, G. H.; Lee, K. J.; Chaney, L.; Smith, K.; Darcy, E.; Pesaran, A.; Darcy, E.

    2010-11-01

    This presentation describes the multi-physics behaviors of internal and external short circuits in large lithium-ion batteries.

  7. Defect model for the dependence of breakdown rate on external electric fields K. Nordlund and F. Djurabekova

    E-Print Network [OSTI]

    Nordlund, Kai

    on an external electric field, observed in test components for the compact linear collider concept. The model

  8. Hyperspectral microscopy using an external cavity quantum cascade laser and its applications for explosives detection

    SciTech Connect (OSTI)

    Phillips, Mark C.; Suter, Jonathan D.; Bernacki, Bruce E.

    2012-04-01

    A hyperspectral infrared microscope using external cavity quantum cascade laser illumination and a microbolometer focal plane array is used to characterize nanogram-scale particles of the explosives RDX, tetryl, and PETN at fast acquisition rates.

  9. The potential impact of externalities considerations on the market for biomass power technologies

    SciTech Connect (OSTI)

    Swezey, B.G.; Porter, K.L.; Feher, J.S.

    1994-02-01

    This study assesses the current status of externalities considerations--nonmarket costs and benefits--in state and utility electricity resource planning processes and determines how externalities considerations might help or hinder the development of biomass power plants. It provides an overview of biomass resources and technologies, including their market status and environmental impacts; reviews the current treatment of externalities in the states; and documents the perspectives of key utility, regulatory, and industry representatives concerning externalities considerations. The authors make the following recommendations to the biomass industry: (1) the wood and agricultural waste industries should work toward having states and utilities recognize that wood and agricultural waste are greenhouse gas neutral resources because of carbon sequestration during growth; (2) the biomass industry should emphasize nonenvironmental benefits such as economic development and job creation; and (3) the biomass industry should pursue and support efforts to establish renewable energy set-asides or ``green`` requests for proposals.

  10. Enhanced external quantum efficiency in an organic photovoltaic cell via singlet fission exciton sensitizer

    E-Print Network [OSTI]

    Reusswig, Philip David

    We demonstrate bilayer organic photovoltaic cells that incorporate a singlet exciton fission sensitizer layer to increase the external quantum efficiency (EQE). This solar cell architecture is realized by pairing the singlet ...

  11. FUNDRAISING AND GIFT ACCEPTANCE University Policy No: ER4105 Classification: External Relations

    E-Print Network [OSTI]

    Victoria, University of

    1 FUNDRAISING AND GIFT ACCEPTANCE University Policy No: ER4105 Classification: External Relations.01 For Gifts-in-kind to the Library or to the University of Victoria Art Collection, authority may be delegated

  12. PII S0360-3016(00)00591-5 TOWARD OPTIMAL EXTERNAL-BEAM FRACTIONATION FOR

    E-Print Network [OSTI]

    Brenner, David Jonathan

    of brachytherapy--that high-dose-rate (HDR) brachytherapy of the prostate might be as efficacious as low brachytherapy boosts after external-beam treatment for unfavorable prostate cancers. HDR brachytherapy was given

  13. 2014-02-03 Issuance: Energy Conservation Standards for External Power Supplies; Final Rule

    Office of Energy Efficiency and Renewable Energy (EERE)

    This document is a pre-publication Federal Register final rule prescribing new energy conservation standards for external power supplies, as issued by the Assistant Secretary on February 3, 2014.

  14. External proton beam analysis of plasma facing materials for magnetic confinement fusion applications

    E-Print Network [OSTI]

    Barnard, Harold Salvadore

    2009-01-01

    A 1.7MV tandem accelerator was reconstructed and refurbished for this thesis and for surface science applications at the Cambridge laboratory for accelerator study of surfaces (CLASS). At CLASS, an external proton beam ...

  15. Intense Internal and External Fluorescence as Solar Cells Approach the Shockley-Queisser Efficiency Limit

    E-Print Network [OSTI]

    Miller, Owen D; Kurtz, Sarah R

    2012-01-01

    Absorbed sunlight in a solar cell produces electrons and holes. But, at the open circuit condition, the carriers have no place to go. They build up in density and, ideally, they emit external fluorescence that exactly balances the incoming sunlight. Any additional non-radiative recombination impairs the carrier density buildup, limiting the open-circuit voltage. At open-circuit, efficient external fluorescence is an indicator of low internal optical losses. Thus efficient external fluorescence is, counter-intuitively, a necessity for approaching the Shockley-Queisser efficiency limit. A great Solar Cell also needs to be a great Light Emitting Diode. Owing to the narrow escape cone for light, efficient external emission requires repeated attempts, and demands an internal luminescence efficiency >>90%.

  16. Influence of meteorology in assessing energy externalities: application of the damage function approach

    SciTech Connect (OSTI)

    Lee, R.; Miller, R.L. [Oak Ridge National Lab., TN (United States)] [Oak Ridge National Lab., TN (United States); McIlvaine, C.M. [Tennessee Univ., Knoxville, TN (United States)] [Tennessee Univ., Knoxville, TN (United States)

    1993-09-14

    This paper describes a methodology for estimating energy externalities. These externalities are environmental, health, and other damages and benefits that traditionally have not been considered as part of the cost of producing and consuming goods and services. An example of externalities is the effect on human health from exposure to ozone formed by NO{sub x} and other emissions from electric power plants. These damages are valued adversely by individuals (and by society) but are not reflected in the price of electricity. The damage function approach is a methodology which is used for developing quantitative estimates of externalities. This paper describes the five major steps in the damage function approach, focuses on the use of ozone models in that framework, and points out the effects of meteorological variables on estimates of ozone concentrations.

  17. Non-Destructive Evaluation of Bridge Stay Cable and External Post-Tensioning Systems 

    E-Print Network [OSTI]

    McCoy, Katlyn Mae

    2014-10-09

    , sounding, ultrasonic tomography, infrared thermography, and ground penetrating radar are evaluated for their applicability to identify selected conditions in a mock-up specimen representative of both a stay cable system and an external PT system. A...

  18. Revised Final Independent External Peer Review Report for the East Branch Dam, Clarion River,

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Revised Final Independent External Peer Review Report for the East Branch Dam, Clarion River, Elk County, Pennsylvania: Dam Safety Modification Report Prepared by Battelle Memorial Institute Prepared Report East Branch Dam, Clarion River, Elk County, Pennsylvania: Dam Safety Modification Report

  19. Oromotor Kinematics of Speech In Children and the Effect of an External Rhythmic Auditory Stimulus

    E-Print Network [OSTI]

    LaGasse, Ashley Blythe

    2009-04-14

    The purpose of this study was to determine the effect of an external auditory rhythmic stimulus on the kinematics of the oromotor musculature during speech production in children and adults. To this effect, the research ...

  20. An investigation into the feasibility of an external combustion, steam injected gas turbine 

    E-Print Network [OSTI]

    Ford, David Bruce

    1981-01-01

    AN INVESTIGATION INTO THE FEASIBILITY OF AN EXTERNAL COMBUSTION, STEAM INJECTED GAS TURBINE A Thesis by DAVID BRUCE FORD Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirement for the degree... of MASTER OF SCIENCE May, 19SI Major Subject: Mechanical Engineering AN INVESTIGATION INTO THE FEASIBILITY OF AN EXTERNAL COMBUSTION i STEAM INJECTED GAS TURBINE A Thesis DAVID BRUCE FORD Approved as to style and content by: & cene 'u Co...

  1. Effect of a static external magnetic perturbation on resistive mode stability in R. Fitzpatrick and T. C. Hender

    E-Print Network [OSTI]

    Fitzpatrick, Richard

    Effect of a static external magnetic perturbation on resistive mode stability in tokamaks R://scitation.aip.org/termsconditions. Downloaded to IP: 128.83.61.231 On: Wed, 11 Mar 2015 21:02:44 #12;Effect of a static external magnetic 1994) The influence of a general static external magnetic perturbation on the stability of resistive

  2. U.S. Army Corps of Engineers 2013 Independent External Peer Review of the USACE Dam Safety Program

    E-Print Network [OSTI]

    US Army Corps of Engineers

    ;#12;#12;#12;#12;#12;#12;#12;#12;#12;U.S. Army Corps of Engineers 2013 Independent External Peer Review of the USACE Dam Safety Program. Dan Corrigan #12;U.S. Army Corps of Engineers 2013 Independent External Peer Review of the USACE Dam All Rights Reserved FINAL REPORT: 2013 INDEPENDENT EXTERNAL PEER REVIEW USACE DAM SAFETY PROGRAM TABLE

  3. Fourier plane imaging microscopy

    SciTech Connect (OSTI)

    Dominguez, Daniel, E-mail: daniel.dominguez@ttu.edu; Peralta, Luis Grave de [Department of Physics, Texas Tech University, Lubbock, Texas 79409 (United States); Nano Tech Center, Texas Tech University, Lubbock, Texas 79409 (United States); Alharbi, Nouf; Alhusain, Mdhaoui [Department of Physics, Texas Tech University, Lubbock, Texas 79409 (United States); Bernussi, Ayrton A. [Nano Tech Center, Texas Tech University, Lubbock, Texas 79409 (United States); Department of Electrical and Computer Engineering, Texas Tech University, Lubbock, Texas 79409 (United States)

    2014-09-14

    We show how the image of an unresolved photonic crystal can be reconstructed using a single Fourier plane (FP) image obtained with a second camera that was added to a traditional compound microscope. We discuss how Fourier plane imaging microscopy is an application of a remarkable property of the obtained FP images: they contain more information about the photonic crystals than the images recorded by the camera commonly placed at the real plane of the microscope. We argue that the experimental results support the hypothesis that surface waves, contributing to enhanced resolution abilities, were optically excited in the studied photonic crystals.

  4. Si Nanopores Development for External Control of Transport of Biomolecules

    SciTech Connect (OSTI)

    Ileri, N; Tringe, J; Letant, S; Palozoglu, A; Stroeve, P; Faller, R

    2008-06-13

    Nazar Ileri has been involved in an independent, multidisciplinary effort to create a new class of molecular sieves for proteins and viruses. Her experimental work has been performed concurrently at two campuses, LLNL and UC Davis, while theoretical components have been largely accomplished at UC Davis. As will be described, the devices she is creating have great potential to improve very significantly the efficiency and selectivity of molecular transport over what is presently available from state-of-the-art membranes. Our biotechnology training program is based on an integrated study of the transport of biomolecules through conically-shaped, nanoporous silicon membranes. The overall objective of this effort is to demonstrate an efficient, highly selective membrane technology that is manufacturable for macroscopic areas and can be employed in sensing, diagnostic and biomedical applications. Our specific aims are to (1) fabricate and characterize the physical characteristics of the membranes, (2) to demonstrate their utility for molecular transport and separation, and (3) to develop models that will facilitate understanding of these devices as well as improved performance of the next generation of devices. We have proposed that the conical pores have superior performance characteristics compared to other porous filters. To study this hypothesis, complementary approaches from different disciplines, such as membrane synthesis, experiment, and molecular simulation need to be combined. This provides an ideal training environment for a future leader in biotechnology. Hence, for this study, Nazar Ileri has started to carry out a full range of experimental and theoretical investigations under our guidance. First, she has begun fabrication of filters with conical/pyramidal pores. She characterized the pores by AFM and SEM, and analyzed the images using wavelets and other mathematical tools. She has also started to conduct biomolecule transport experiments to compare the efficiency of fabricated filters vs. state-of-the-art commercial polycarbonate track-etched (PCTE) membranes. Finally, she has performed preliminary molecular calculations to investigate the operating principles of such systems and she has obtained results which she will present at the international 'Nanostructured materials, membrane modeling and simulation' workshop in Greece.

  5. Image compression technique

    DOE Patents [OSTI]

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

    1997-03-25

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

  6. Image compression technique

    DOE Patents [OSTI]

    Fu, Chi-Yung (San Francisco, CA); Petrich, Loren I. (Livermore, CA)

    1997-01-01

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

  7. Guarding Art Galleries Methods for Mobile Guards

    E-Print Network [OSTI]

    robots through a burning building in search of victims, or having robots survey a nuclear reactor and his comments on my work. The Algorithm Theory Group in Lund p

  8. Energy Education Photo Gallery | Department of Energy

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

    of America's Home Energy Education Challenge from Villa Maria Middle School in Connecticut. Energy Studies at Western Washington University 11 of 14 Energy Studies at...

  9. 2014 YWC Gallery | Princeton Plasma Physics Lab

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  10. Photo Galleries | Argonne Leadership Computing Facility

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

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  12. Photo Gallery | Mickey Leland Energy Fellowship (MLEF)

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  13. Photo Gallery | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

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  14. Video Gallery | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

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  15. LPO: Ga Power Gallery | Department of Energy

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  17. Journal Cover Gallery | The Ames Laboratory

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  20. Energy Education Photo Gallery | Department of Energy

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  1. Quadrennial Technology Review Gallery | Department of Energy

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

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  2. Imaging arrangement and microscope

    DOE Patents [OSTI]

    Pertsinidis, Alexandros; Chu, Steven

    2015-12-15

    An embodiment of the present invention is an imaging arrangement that includes imaging optics, a fiducial light source, and a control system. In operation, the imaging optics separate light into first and second tight by wavelength and project the first and second light onto first and second areas within first and second detector regions, respectively. The imaging optics separate fiducial light from the fiducial light source into first and second fiducial light and project the first and second fiducial light onto third and fourth areas within the first and second detector regions, respectively. The control system adjusts alignment of the imaging optics so that the first and second fiducial light projected onto the first and second detector regions maintain relatively constant positions within the first and second detector regions, respectively. Another embodiment of the present invention is a microscope that includes the imaging arrangement.

  3. Video Toroid Cavity Imager

    DOE Patents [OSTI]

    Gerald, Rex E. II; Sanchez, Jairo; Rathke, Jerome W.

    2004-08-10

    A video toroid cavity imager for in situ measurement of electrochemical properties of an electrolytic material sample includes a cylindrical toroid cavity resonator containing the sample and employs NMR and video imaging for providing high-resolution spectral and visual information of molecular characteristics of the sample on a real-time basis. A large magnetic field is applied to the sample under controlled temperature and pressure conditions to simultaneously provide NMR spectroscopy and video imaging capabilities for investigating electrochemical transformations of materials or the evolution of long-range molecular aggregation during cooling of hydrocarbon melts. The video toroid cavity imager includes a miniature commercial video camera with an adjustable lens, a modified compression coin cell imager with a fiat circular principal detector element, and a sample mounted on a transparent circular glass disk, and provides NMR information as well as a video image of a sample, such as a polymer film, with micrometer resolution.

  4. Ferroelectric optical image comparator

    DOE Patents [OSTI]

    Butler, M.A.; Land, C.E.; Martin, S.J.; Pfeifer, K.B.

    1993-11-30

    A ferroelectric optical image comparator has a lead lanthanum zirconate titanate thin-film device which is constructed with a semi-transparent or transparent conductive first electrode on one side of the thin film, a conductive metal second electrode on the other side of the thin film, and the second electrode is in contact with a nonconducting substrate. A photoinduced current in the device represents the dot product between a stored image and an image projected onto the first electrode. One-dimensional autocorrelations are performed by measuring this current while displacing the projected image. 7 figures.

  5. Graphics and Image Standards

    Broader source: Energy.gov [DOE]

    For EERE websites and applications, follow these requirements and best practices for designing graphics and developing images. This includes making them Section 508-compliant.

  6. Quantitative luminescence imaging system

    DOE Patents [OSTI]

    Erwin, David N. (San Antonio, TX); Kiel, Johnathan L. (San Antonio, TX); Batishko, Charles R. (West Richland, WA); Stahl, Kurt A. (Richland, WA)

    1990-01-01

    The QLIS images and quantifies low-level chemiluminescent reactions in an electromagnetic field. It is capable of real time nonperturbing measurement and simultaneous recording of many biochemical and chemical reactions such as luminescent immunoassays or enzyme assays. The system comprises image transfer optics, a low-light level digitizing camera with image intensifying microchannel plates, an image process or, and a control computer. The image transfer optics may be a fiber image guide with a bend, or a microscope, to take the light outside of the RF field. Output of the camera is transformed into a localized rate of cumulative digitalized data or enhanced video display or hard-copy images. The system may be used as a luminescent microdosimetry device for radiofrequency or microwave radiation, as a thermal dosimeter, or in the dosimetry of ultra-sound (sonoluminescence) or ionizing radiation. It provides a near-real-time system capable of measuring the extremely low light levels from luminescent reactions in electromagnetic fields in the areas of chemiluminescence assays and thermal microdosimetry, and is capable of near-real-time imaging of the sample to allow spatial distribution analysis of the reaction. It can be used to instrument three distinctly different irradiation configurations, comprising (1) RF waveguide irradiation of a small Petri-dish-shaped sample cell, (2) RF irradiation of samples in a microscope for the microscopie imaging and measurement, and (3) RF irradiation of small to human body-sized samples in an anechoic chamber.

  7. Quantitative luminescence imaging system

    DOE Patents [OSTI]

    Erwin, D.N.; Kiel, J.L.; Batishko, C.R.; Stahl, K.A.

    1990-08-14

    The QLIS images and quantifies low-level chemiluminescent reactions in an electromagnetic field. It is capable of real time nonperturbing measurement and simultaneous recording of many biochemical and chemical reactions such as luminescent immunoassays or enzyme assays. The system comprises image transfer optics, a low-light level digitizing camera with image intensifying microchannel plates, an image process or, and a control computer. The image transfer optics may be a fiber image guide with a bend, or a microscope, to take the light outside of the RF field. Output of the camera is transformed into a localized rate of cumulative digitalized data or enhanced video display or hard-copy images. The system may be used as a luminescent microdosimetry device for radiofrequency or microwave radiation, as a thermal dosimeter, or in the dosimetry of ultra-sound (sonoluminescence) or ionizing radiation. It provides a near-real-time system capable of measuring the extremely low light levels from luminescent reactions in electromagnetic fields in the areas of chemiluminescence assays and thermal microdosimetry, and is capable of near-real-time imaging of the sample to allow spatial distribution analysis of the reaction. It can be used to instrument three distinctly different irradiation configurations, comprising (1) RF waveguide irradiation of a small Petri-dish-shaped sample cell, (2) RF irradiation of samples in a microscope for the microscopic imaging and measurement, and (3) RF irradiation of small to human body-sized samples in an anechoic chamber. 22 figs.

  8. Fermilab | Press Room | Images

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

    When using these images, please credit Fermilab. Return to Press Release Med Res | Hi Res According to the Standard Model of particles and forces, the Higgs mechanism gives...

  9. Fermilab | Press Room | Images

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

    using these images, please credit them as specified. Return to Press Release Med Res | Hi Res The Standard Model describes the interactions of the fundamental particle of the...

  10. Edge-based correlation image registration for multispectral imaging

    DOE Patents [OSTI]

    Nandy, Prabal (Albuquerque, NM)

    2009-11-17

    Registration information for images of a common target obtained from a plurality of different spectral bands can be obtained by combining edge detection and phase correlation. The images are edge-filtered, and pairs of the edge-filtered images are then phase correlated to produce phase correlation images. The registration information can be determined based on these phase correlation images.

  11. Potential External (non-DOE) Constraints on U.S. Fuel Cycle Options

    SciTech Connect (OSTI)

    Steven J. Piet

    2012-07-01

    The DOE Fuel Cycle Technologies (FCT) Program will be conducting a screening of fuel cycle options in FY2013 to help focus fuel cycle R&D activities. As part of this screening, performance criteria and go/no-go criteria are being identified. To help ensure that these criteria are consistent with current policy, an effort was initiated to identify the status and basis of potentially relevant regulations, laws, and policies that have been established external to DOE. As such regulations, laws, and policies may be beyond DOE’s control to change, they may constrain the screening criteria and internally-developed policy. This report contains a historical survey and analysis of publically available domestic documents that could pertain to external constraints on advanced nuclear fuel cycles. “External” is defined as public documents outside DOE. This effort did not include survey and analysis of constraints established internal to DOE.

  12. In-air RBS measurements at the LAMFI external beam setup

    SciTech Connect (OSTI)

    Silva, T. F.; Added, N.; Moro, M. V.; Trindade, G. F.; Santos, H. C.; Rodrigues, C. L.; Rizzutto, M. A.; Tabacniks, M. H.

    2014-11-11

    This work describes new developments in the external beam setup of the Laboratory of Material Analysis with Ion Beams of the University of Săo Paulo (LAMFI-USP). This setup was designed to be a versatile analytical station to analyze a broad range of samples. In recent developments, we seek the external beam Rutherford Backscattering Spectroscopy (RBS) analysis to complement the Particle Induced X-ray Emission (PIXE) measurements. This work presents the initial results of the external beam RBS analysis as well as recent developments to improve the energy resolution RBS measurements, in particular tests to seek for sources of resolution degradation. These aspects are discussed and preliminary results of in-air RBS analysis of some test samples are presented.

  13. Events Determine Spreading Patterns: Information Transmission via Internal and External Influences on Social Networks

    E-Print Network [OSTI]

    Liu, Chuang; Zhang, Zi-Ke; Sun, Gui-Quan; Hui, Pak Ming

    2015-01-01

    Recently, information transmission models motivated by the classical epidemic propagation, have been applied to a wide-range of social systems, generally assume that information mainly transmits among individuals via peer-to-peer interactions on social networks. In this paper, we consider one more approach for users to get information: the out-of-social-network influence. Empirical analyses of eight typical events' diffusion on a very large micro-blogging system, \\emph{Sina Weibo}, show that the external influence has significant impact on information spreading along with social activities. In addition, we propose a theoretical model to interpret the spreading process via both internal and external channels, considering three essential properties: (i) memory effect; (ii) role of spreaders; and (iii) non-redundancy of contacts. Experimental and mathematical results indicate that the information indeed spreads much quicker and broader with mutual effects of the internal and external influences. More importantly...

  14. Numerical investigation on operation mode influenced by external frequency in atmospheric pressure barrier discharge

    SciTech Connect (OSTI)

    Wang Qi [Dalian Institute of Semiconductor Technology, School of Electronics Science and Technology, Dalian University of Technology, Dalian 116023 (China); Sun Jizhong; Wang Dezhen [School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116023 (China)

    2011-10-15

    The influence of external driving frequency on the discharge mode in the dielectric barrier discharge was investigated with a two-dimensional, self-consistent fluid model. The simulation results show that the helium discharge exhibits three operation modes: Townsend, homogeneous glow, and local glow discharges from the lower frequency (1 kHz) to the higher frequency (100 kHz) under discharge parameters specified in this work. The discharge operates in a Townsend mode when the driving frequency varies from 1 to about 7 kHz; while it exhibits homogenous glow characteristics in an approximate range from 7 to 65 kHz; when the external frequency exceeds 65 kHz, it turns into a local glow discharge. The effects of external driving frequency on the discharge mode were revealed and the physical reasons were discussed.

  15. The External Magnetic Field Created by the Superposition of Identical Parallel Finite Solenoids

    E-Print Network [OSTI]

    Lim, Melody Xuan

    2015-01-01

    Using superposition and numerical approximations of a published analytical expression for the magnetic field generated by a finite solenoid, we show that the magnetic field external to parallel identical solenoids can be nearly uniform and substantial, even when the solenoids have lengths that are large compared to their radii. We study two arrangements of solenoids---a ring of parallel solenoids whose surfaces are tangent to a common cylindrical surface and to nearest neighbours, and a large finite hexagonal array of parallel solenoids---and summarize how the magnitude and uniformity of the resultant external field depend on the solenoid length and distances between solenoids. We also report some novel results about single solenoids, e.g., that the energy stored in the internal magnetic field exceeds the energy stored in the spatially infinite external magnetic field for even short solenoids. These results should be broadly interesting to undergraduates learning about electricity and magnetism as novel examp...

  16. Scandinavian Workshop on Imaging

    E-Print Network [OSTI]

    Mosegaard, Klaus

    Barcode Imaging of Chocolate Milk Quan.fica.on of Microstructures in Freeze.on of Fat Content in Raw Beef Cut Meat Evalua.on by RGB-to-spectrum Imaging.on to Visualizing Meat Products Characteriza.on of Commercial Danish Apple Cul.var Using Novel

  17. Medical imaging systems

    DOE Patents [OSTI]

    Frangioni, John V. (Wayland, MA)

    2012-07-24

    A medical imaging system provides simultaneous rendering of visible light and fluorescent images. The system may employ dyes in a small-molecule form that remains in a subject's blood stream for several minutes, allowing real-time imaging of the subject's circulatory system superimposed upon a conventional, visible light image of the subject. The system may also employ dyes or other fluorescent substances associated with antibodies, antibody fragments, or ligands that accumulate within a region of diagnostic significance. In one embodiment, the system provides an excitation light source to excite the fluorescent substance and a visible light source for general illumination within the same optical guide that is used to capture images. In another embodiment, the system is configured for use in open surgical procedures by providing an operating area that is closed to ambient light. More broadly, the systems described herein may be used in imaging applications where a visible light image may be usefully supplemented by an image formed from fluorescent emissions from a fluorescent substance that marks areas of functional interest.

  18. COVER IMAGE Mechanical metamaterials

    E-Print Network [OSTI]

    Loss, Daniel

    COVER IMAGE Mechanical metamaterials are artificial structures whose properties originate from a range of structural deformations. Letter p153; News & Views p95 IMAGE: JAYSON PAULOSE COVER DESIGN in elementary optical excitations of monolayer WSe2 Ajit Srivastava, Meinrad Sidler, Adrien V. Allain, Dominik S

  19. Heart imaging method

    DOE Patents [OSTI]

    Collins, H. Dale (Richland, WA); Gribble, R. Parks (Richland, WA); Busse, Lawrence J. (Littleton, CO)

    1991-01-01

    A method for providing an image of the human heart's electrical system derives time-of-flight data from an array of EKG electrodes and this data is transformed into phase information. The phase information, treated as a hologram, is reconstructed to provide an image in one or two dimensions of the electrical system of the functioning heart.

  20. Fluorescent image tracking velocimeter

    DOE Patents [OSTI]

    Shaffer, Franklin D. (Library, PA)

    1994-01-01

    A multiple-exposure fluorescent image tracking velocimeter (FITV) detects and measures the motion (trajectory, direction and velocity) of small particles close to light scattering surfaces. The small particles may follow the motion of a carrier medium such as a liquid, gas or multi-phase mixture, allowing the motion of the carrier medium to be observed, measured and recorded. The main components of the FITV include: (1) fluorescent particles; (2) a pulsed fluorescent excitation laser source; (3) an imaging camera; and (4) an image analyzer. FITV uses fluorescing particles excited by visible laser light to enhance particle image detectability near light scattering surfaces. The excitation laser light is filtered out before reaching the imaging camera allowing the fluoresced wavelengths emitted by the particles to be detected and recorded by the camera. FITV employs multiple exposures of a single camera image by pulsing the excitation laser light for producing a series of images of each particle along its trajectory. The time-lapsed image may be used to determine trajectory and velocity and the exposures may be coded to derive directional information.

  1. Adaptive wiener image restoration kernel

    DOE Patents [OSTI]

    Yuan, Ding (Henderson, NV)

    2007-06-05

    A method and device for restoration of electro-optical image data using an adaptive Wiener filter begins with constructing imaging system Optical Transfer Function, and the Fourier Transformations of the noise and the image. A spatial representation of the imaged object is restored by spatial convolution of the image using a Wiener restoration kernel.

  2. Content-Aware Image enhancement

    E-Print Network [OSTI]

    Schettini, Raimondo

    Content-Aware Image enhancement R. Schettini www.ivl.disco.unimib.it #12;8 Faculties, 61 Degree Recognition Content-based retrieval Quality Assessment #12;Content-Aware Image Enhancement Presentation Image Processing Content aware image enhancement We focus here on image based features. And show how

  3. Synchronization of an array of spin torque nano oscillators in periodic applied external magnetic field

    E-Print Network [OSTI]

    B. Subash; V. K. Chandrasekar; M. Lakshmanan

    2013-04-03

    Considering an array of spin torque transfer nano oscillators (STNOs), we have investigated the synchronization property of the system under the action of a common periodically driven applied external magnetic field by numerically analyzing the underlying system of Landau-Lifshitz-Gilbert-Slonczewski (LLGS) equations for the macro-spin variables. We find the novel result that the applied external magnetic field can act as a medium to induce synchronization of periodic oscillations, both in-phase and anti-phase, even without coupling through spin current, thereby leading to the exciting possibility of enhancement of microwave power in a straightforward way.

  4. Enhancement of crystal homogeneity of protein crystals under application of an external alternating current electric field

    SciTech Connect (OSTI)

    Koizumi, H.; Uda, S.; Fujiwara, K.; Nozawa, J.; Tachibana, M.; Kojima, K.

    2014-10-06

    X-ray diffraction rocking-curve measurements were performed on tetragonal hen egg white (HEW) lysozyme crystals grown with and without the application of an external alternating current (AC) electric field. The crystal quality was assessed by the full width at half maximum (FWHM) value for each rocking curve. For two-dimensional maps of the FWHMs measured on the 440 and the 12 12 0 reflection, the crystal homogeneity was improved under application of an external electric field at 1 MHz, compared with that without. In particular, the significant improvement of the crystal homogeneity was observed for the 12 12 0 reflection.

  5. Pellet fuelling with edge-localised modes controlled by external magnetic perturbations in MAST

    E-Print Network [OSTI]

    Valovic, M; Gurl, C; Kirk, A; Dunai, D; Field, A R; Lupelli, I; Naylor, G; Thornton, A

    2014-01-01

    The fuelling of plasmas by shallow frozen pellets with simultaneous mitigation of edge localised modes (ELM) by external magnetic perturbation is demonstrated on the MAST tokamak. Post-pellet particle loss is dominated by ELMs and inter-ELM gas fuelling. It is shown that the size of post-pellet ELMs can be controlled by external magnetic perturbations. Post-pellet ELMs remove particles from the large part of pellet deposition zone including the area with positive density gradient. The mechanism explaining this peculiarity of particle loss is suggested.

  6. On the interaction of massive spinor particles with external electromagnetic and torsion fields

    E-Print Network [OSTI]

    Lewis H. Ryder; Ilya L. Shapiro

    1998-05-21

    We explore the Dirac equation in external electromagnetic and torsion fields. Motivated by the previous study of quantum field theory in an external torsion field, we include a nonminimal interaction of the spinor field with torsion. As a consequence, the torsion axial vector and the electromagnetic potential enter the action in a similar form. The existence of an extra local symmetry is emphasized and the Foldy-Wouthuysen transformation is performed to an accuracy of next to the leading order. We also discuss the motion of a classical test particle in a constant torsion field.

  7. Aberrant Ovarian Collateral Originating from External Iliac Artery During Uterine Artery Embolization

    SciTech Connect (OSTI)

    Kwon, Joon Ho; Kim, Man Deuk Lee, Kwang-hun; Lee, Myungsu; Lee, Mu Sook; Won, Jong Yun; Park, Sung Il; Lee, Do Yun

    2013-02-15

    We report a case of a 35-year-old woman who underwent uterine artery embolization (UAE) for symptomatic multiple uterine fibroids with collateral aberrant right ovarian artery that originated from the right external iliac artery. We believe that this is the first reported case in the literature of this collateral uterine flow by the right ovarian artery originated from the right external iliac artery. We briefly present the details of the case and review the literature on variations of ovarian artery origin that might be encountered during UAE.

  8. Image forming apparatus

    DOE Patents [OSTI]

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

    1996-01-01

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

  9. Time encoded radiation imaging

    DOE Patents [OSTI]

    Marleau, Peter; Brubaker, Erik; Kiff, Scott

    2014-10-21

    The various technologies presented herein relate to detecting nuclear material at a large stand-off distance. An imaging system is presented which can detect nuclear material by utilizing time encoded imaging relating to maximum and minimum radiation particle counts rates. The imaging system is integrated with a data acquisition system that can utilize variations in photon pulse shape to discriminate between neutron and gamma-ray interactions. Modulation in the detected neutron count rates as a function of the angular orientation of the detector due to attenuation of neighboring detectors is utilized to reconstruct the neutron source distribution over 360 degrees around the imaging system. Neutrons (e.g., fast neutrons) and/or gamma-rays are incident upon scintillation material in the imager, the photons generated by the scintillation material are converted to electrical energy from which the respective neutrons/gamma rays can be determined and, accordingly, a direction to, and the location of, a radiation source identified.

  10. Confocal coded aperture imaging

    DOE Patents [OSTI]

    Tobin, Jr., Kenneth William (Harriman, TN); Thomas, Jr., Clarence E. (Knoxville, TN)

    2001-01-01

    A method for imaging a target volume comprises the steps of: radiating a small bandwidth of energy toward the target volume; focusing the small bandwidth of energy into a beam; moving the target volume through a plurality of positions within the focused beam; collecting a beam of energy scattered from the target volume with a non-diffractive confocal coded aperture; generating a shadow image of said aperture from every point source of radiation in the target volume; and, reconstructing the shadow image into a 3-dimensional image of the every point source by mathematically correlating the shadow image with a digital or analog version of the coded aperture. The method can comprise the step of collecting the beam of energy scattered from the target volume with a Fresnel zone plate.

  11. Functional renormalization group study of Nambu--Jona-Lasinio model at finite temperature and density in external magnetic field

    E-Print Network [OSTI]

    Ken-Ichi Aoki; Hidenari Uoi; Masatoshi Yamada

    2015-07-09

    We study the Nambu--Jona-Lasinio (NJL) model at finite temperature and finite density in an external magnetic field using the Functional Renormalization Group (FRG). The dependence of the position of UltraViolet Fixed Point (UVFP) of the four-fermi coupling constant on temperature, density and external magnetic field is investigated and we obtain the chiral phase structure. The UVFP at low temperature and finite chemical potential oscillates in small external magnetic field, which can be interpreted as the de-Haas--van-Alfen effect. We also find that the external magnetic field moves the chiral phase boundary towards the symmetric side at low temperature and high density region.

  12. Functional renormalization group study of Nambu--Jona-Lasinio model at finite temperature and density in external magnetic field

    E-Print Network [OSTI]

    Aoki, Ken-Ichi; Yamada, Masatoshi

    2015-01-01

    We study the Nambu--Jona-Lasinio (NJL) model at finite temperature and finite density in an external magnetic field using the Functional Renormalization Group (FRG). The dependence of the position of UltraViolet Fixed Point (UVFP) of the four-fermi coupling constant on temperature, density and external magnetic field is investigated and we obtain the chiral phase structure. The UVFP at low temperature and finite chemical potential oscillates in small external magnetic field, which can be interpreted as the de-Haas--van-Alfen effect. We also find that the external magnetic field moves the chiral phase boundary towards the symmetric side at low temperature and high density region.

  13. PC>MPT External TO/DO 20141030 Invoice and Payment Instructions

    E-Print Network [OSTI]

    Ungerleider, Leslie G.

    accelerated payments to its small business subcontractors under this contract, to the maximum extentPC>MPT External TO/DO 20141030 Invoice and Payment Instructions for Contracts and Awards Above) The following is applicable to all contracts and awards above the micro-purchase threshold where

  14. Verification of Relational Data-Centric Dynamic Systems with External Services

    E-Print Network [OSTI]

    Calvanese, Diego

    Verification of Relational Data-Centric Dynamic Systems with External Services Babak Bagheri Hariri@cs.ucsd.edu ABSTRACT Data-centric dynamic systems are systems where both the process controlling the dynamics processes. In this paper we study verification of (first-order) µ-calculus variants over relational data-centric

  15. Verification of Relational Data-Centric Dynamic Systems with External Services

    E-Print Network [OSTI]

    Calvanese, Diego

    Verification of Relational Data-Centric Dynamic Systems with External Services Babak Bagheri Hariri@cs.ucsd.edu ABSTRACT Data-centric dynamic systems are systems where both the process controlling the dynamics relational data-centric dynamic systems, where data are main- tained in a relational database

  16. Vibration responses of h-BN sheet to charge doping and external strain

    SciTech Connect (OSTI)

    Yang, Wei; Yang, Yu; Zheng, Fawei [Institute of Applied Physics and Computational Mathematics, Beijing 100088 (China)] [Institute of Applied Physics and Computational Mathematics, Beijing 100088 (China); Zhang, Ping, E-mail: zhang-ping@iapcm.ac.cn [Institute of Applied Physics and Computational Mathematics, Beijing 100088 (China) [Institute of Applied Physics and Computational Mathematics, Beijing 100088 (China); Beijing Computational Science Research Center, Beijing 100084 (China)

    2013-12-07

    Based on density functional theory and density functional perturbation theory calculations, we systematically investigate the vibration responses of h-BN sheet to charge doping and external strains. It is found that under hole doping, the phonon frequencies of the ZO and TO branches at different wave vector q shift linearly with different slopes. Under electron doping, although the phonon frequencies shift irregularly, the shifting values are different at different phonon wave vectors. Interestingly, we find that external strain can restrain the irregular vibration responses of h-BN sheet to electron doping. The critical factor is revealed to be the relative position of the nearly free electron and boron p{sub z} states of h-BN sheet. Under external strains, the vibration responses of h-BN sheet are also found to be highly dependent on the phonon branches. Different vibration modes at different q points are revealed to be responsible for the vibration responses of h-BN sheet to charge doping and external strain. Our results point out a new way to detect the doping or strain status of h-BN sheet by measuring the vibration frequencies at different wave vector.

  17. Final Independent External Peer Review Report Sacramento River Deep Water Ship Channel,

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Final Independent External Peer Review Report Sacramento River Deep Water Ship Channel, California Institute Prepared for Department of the Army U.S. Army Corps of Engineers Deep Draft Navigation Planning Peer Review Report of the Sacramento River Deep Water Ship Channel, California Limited Reevaluation

  18. Feedback suppression of rotating external kink instabilities in the presence of noise

    E-Print Network [OSTI]

    Mauel, Michael E.

    =vA/a, but a conducting wall at the plasma boundary can interact with the mode. The resulting plasma-wall mode is termed experimental demonstration of active feedback suppression of rotating external kink modes near the ideal wall limit in a tokamak using Kalman filtering to discriminate the n=1 kink mode from background noise

  19. Externality Regulation in Oil and Gas Encyclopedia of Energy, Natural Resource, and

    E-Print Network [OSTI]

    Garousi, Vahid

    Externality Regulation in Oil and Gas Chapter 56 Encyclopedia of Energy, Natural Resource Unitization: Compulsory unitization legislation enables a majority of producers on an oil or gas field resource, congestion exter- nality, minimum oil/gas ratio, monopsony power, pipeline transportation, no

  20. Pollution Externalities and Health: A Study of Indian Rivers Working Paper

    E-Print Network [OSTI]

    Bandyopadhyay, Antar

    Pollution Externalities and Health: A Study of Indian Rivers Working Paper Quy-Toan Do (The World ABSTRACT Water pollution levels in many developing countries remain significantly higher than in the developed world. While such pollution is often a byproduct of economic activity, it also imparts a health

  1. Adapting Task Utility in Externally Triggered Energy Harvesting Wireless Sensing Systems

    E-Print Network [OSTI]

    Simunic, Tajana

    of time. A significant challenge in this type of system is the management and conservation of energyAdapting Task Utility in Externally Triggered Energy Harvesting Wireless Sensing Systems Jamie achievable within a global deadline. We apply our methods to a prototype Structural Health Monitoring system

  2. Stochastic bi-resonance without external signal in the CO O2 catalytic oxidation reaction system

    E-Print Network [OSTI]

    Yang, Lingfa

    Stochastic bi-resonance without external signal in the CO O2 catalytic oxidation reaction system reaction systems13 including the catalytic oxidation of carbon monoxide (CO O2) and the catalytic reduction; accepted 19 April 1999 The noisy dynamic behavior of a surface catalytic reaction model to describe

  3. External noise-induced phenomena in CO oxidation on single crystal surfaces

    E-Print Network [OSTI]

    Toral, Raúl

    of external noise on minimalistic models for the catalytic CO oxidation on Ir 111 and Pt 111 is studied imposed on the catalytic CO oxidation on Ir 111 and Pt 111 . The experimental characterization of noise that bistability in catalytic CO oxidation vanishes below a critical particle size. Kinetic Monte Carlo simulations

  4. QUANTIFYING THE EXTERNAL COSTS OF VEHICLE USE: EVIDENCE FROM AMERICA'S TOP SELLING LIGHT-DUTY MODELS

    E-Print Network [OSTI]

    Kockelman, Kara M.

    -selling passenger cars and light-duty trucks in the U.S. Among these external costs, those associated with crashes estimated for several other vehicles of particular interest, including GM's Hummer and several hybrid drive: small cars, mid-sized cars, large cars, luxury cars, crossover utility vehicles (CUVs), sport

  5. Stability of elastic icosadeltahedral shells under uniform external pressure: Application to viruses under osmotic pressure

    E-Print Network [OSTI]

    Podgornik, Rudolf

    to viruses under osmotic pressure Antonio Siber1,* and Rudolf Podgornik2,3 1 Institute of Physics, P.O. Box, and are applied to the case of viruses under osmotic pressure. DOI: 10.1103/PhysRevE.79.011919 PACS number s : 87 submitted to osmotic pressure of the external solu- tion. The impenetrability of the viral capsid

  6. Internal phase transition induced by external forces in Finsler geometric model for membranes

    E-Print Network [OSTI]

    Hiroshi Koibuchi; Andrey Shobukhov

    2015-08-29

    We numerically study an anisotropic shape transformation of membranes under external forces for two-dimensional triangulated surfaces on the basis of Finsler geometry. The Finsler metric is defined by using a vector field, which is the tangential component of a three dimensional unit vector $\\sigma$ corresponding to the tilt or some external macromolecules on the surface of disk topology. The sigma model Hamiltonian is assumed for the tangential component of $\\sigma$ with the interaction coefficient $\\lambda$. For large (small) $\\lambda$, the surface becomes oblong (collapsed) at relatively small bending rigidity. For the intermediate $\\lambda$, the surface becomes planar. Conversely, fixing the surface with the boundary of area $A$ or with the two point boundaries of distance $L$, we find that the variable $\\sigma$ changes from random to aligned state with increasing of $A$ or $L$ for the intermediate region of $\\lambda$. This implies that an internal phase transition for $\\sigma$ is triggered not only by the thermal fluctuations but also by external mechanical forces. We also find that the frame (string) tension shows the expected scaling behavior with respect to $A/N$ ($L/N$) at the intermediate region of $A$ ($L$) where the $\\sigma$ configuration changes between the disordered and ordered phases. Moreover, we find that the string tension $\\gamma$ at sufficiently large $\\lambda$ is considerably smaller than that at small $\\lambda$. This phenomenon resembles the so-called soft-elasticity in the liquid crystal elastomer, which is deformed by small external tensile forces.

  7. The Design and Development of An Externally Fired Steam Injected Gas Turbine for Cogeneration 

    E-Print Network [OSTI]

    Boyce, M. P.; Meher-Homji, C.; Ford, D.

    1981-01-01

    This paper describes the theoretical background and the design and development of a prototype externally fired steam injected (ECSI) gas turbine which has a potential to utilize lower grade fuels. The system is designed around a 2 shaft 360 HP gas...

  8. Detection and Tracking of External Features in an Urban Environment Using an Autonomous

    E-Print Network [OSTI]

    Sukhatme, Gaurav S.

    Detection and Tracking of External Features in an Urban Environment Using an Autonomous Helicopter-based approach to detect and track features in a structured environment using an autonomous helicopter. Using vision as a sensor enables the helicopter to track features in an urban environment. We use vision

  9. High efficiency cholesteric liquid crystal lasers with an external stable resonator

    E-Print Network [OSTI]

    Richardson, Martin C.

    High efficiency cholesteric liquid crystal lasers with an external stable resonator Hamidreza Shirvani-Mahdavi,1,2 Shima Fardad,2 Ezeddin Mohajerani,1 and Shin-Tson Wu2* 1 Laser and Plasma Research Institute, Shahid Beheshti University, G.C., Evin St., Tehran, Iran 2 College of Optics and Photonics

  10. Generating 3D volumetric meshes of internal and external fruit Mikolaj Cieslak1,2

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Generating 3D volumetric meshes of internal and external fruit structure Mikolaj Cieslak1 Godin2 and Nadia Bertin1 1 INRA, UR 1115 Plantes et Systčmes de Culture Horticoles, Domaine St Paul, Site Agroparc, F-84914 Avignon Cedex 9, France 2 CIRAD/INRIA/INRA, Virtual Plants INRIA Team, UMR AGAP

  11. Final Independent External Peer Review Report Mohawk Dam Major Rehabilitation Report

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Final Independent External Peer Review Report Mohawk Dam Major Rehabilitation Report Warsaw, Ohio Report Mohawk Dam Major Rehabilitation Report Warsaw, Ohio by Battelle 505 King Avenue Columbus, OH 43201 documentation. #12;This page is intentionally left blank. #12;Mohawk Dam Major Rehabilitation Report i Battelle

  12. Generalized External Interaction with Tamper-Resistant Hardware with Bounded Information Leakage

    E-Print Network [OSTI]

    Reif, Rafael

    Generalized External Interaction with Tamper-Resistant Hardware with Bounded Information Leakage of Technology devadas@mit.edu ABSTRACT This paper investigates secure ways to interact with tamper- resistant on top of a recently- proposed secure processor Ascend [11]. Ascend is chosen because unlike other tamper

  13. FREE ENERGY AND SOLUTIONS OF THE VLASOV-POISSON-FOKKER-PLANCK SYSTEM : EXTERNAL POTENTIAL AND CONFINEMENT

    E-Print Network [OSTI]

    Dolbeault, Jean

    FREE ENERGY AND SOLUTIONS OF THE VLASOV-POISSON-FOKKER-PLANCK SYSTEM : EXTERNAL POTENTIAL-mail: dolbeault@ceremade.dauphine.fr June 20, 1997 Introduction I. The free energy 1. Jensen's inequality and related topics 2. Applications to the free energy 2.1. The linear case 2.2. The self-consistent case 3

  14. The Externalities of Strong Social Capital: Post-Tsunami Recovery in Southeast India

    E-Print Network [OSTI]

    1 The Externalities of Strong Social Capital: Post-Tsunami Recovery in Southeast India DANIEL P villages in Tamil Nadu, India following the 2004 Indian Ocean tsunami, this paper demonstrates that high on the southeast coast of India had very different patterns of recovery. One scholar described how, when relief

  15. Current as of Dec. 19, 2014 How to Request to Attend an External Conference

    E-Print Network [OSTI]

    Tipple, Brett

    Current as of Dec. 19, 2014 How to Request to Attend an External Conference Using the Attendance Conference Microsite: http://vaww.ees.lrn.va.gov/Conferences/Guidance/ACES/ACES_Search/ 2. Search the ACES to the Conference Pre- registration page. 4. From the Conference Pre-registration page, click on the "Attendee Pre

  16. Final Independent External Peer Review Report John Day Dam Mitigation Program

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Final Independent External Peer Review Report John Day Dam Mitigation Program Draft Post Valley Division Contract No. W912HQ-10-D-0002 Task Order: 0077 November 21, 2014 #12;John Day Dam IEPR | Final IEPR Report BATTELLE | November 21, 2014 This page is intentionally left blank. #12;John Day Dam

  17. External field control of spin-dependent rotational decoherence of ultracold polar Alexander Petrova,b

    E-Print Network [OSTI]

    Kotochigova, Svetlana

    ; Division of Quantum Mechanics, St. Petersburg State University, 198904, Russia c Department of Physics of ultracold fermionic ground- state 40 K87 Rb polar molecules, when static magnetic, static electric combined with external static electric field [11­13]. The feasibility of orienting rotation- ally cold

  18. Biomechanical Determinants of Pedaling Energetics: Internal and External Work Are Not

    E-Print Network [OSTI]

    ARTICLE Biomechanical Determinants of Pedaling Energetics: Internal and External Work of Texas at Austin KAUTZ, S.A., and R.R. NEPTUNE. Biomechanical determinants of pedaling energetics concept of internal work as an independent cost necessary for moving the legs (2), biomechanical studies

  19. New Cooperative Mechanisms of Low Energy Nuclear Reactions Using Superlow Energy External Fields

    E-Print Network [OSTI]

    F. A. Gareev; I. E. Zhidkova

    2005-11-30

    We proposed a new mechanism of LENR: cooperative processes in whole system - nuclei+atoms+condensed matter can occur at smaller threshold then corresponding ones on free constituents. The cooperative processes can be induced and enhanced by low energy external fields. The excess heat is the emission of internal energy and transmutations at LENR are the result of redistribution inner energy of whole system.

  20. New Cooperative Mechanisms of Low Energy Nuclear Reactions Using Superlow Energy External Fields

    E-Print Network [OSTI]

    Gareev, F A

    2005-01-01

    We proposed a new mechanism of LENR: cooperative processes in whole system - nuclei+atoms+condensed matter can occur at smaller threshold then corresponding ones on free constituents. The cooperative processes can be induced and enhanced by low energy external fields. The excess heat is the emission of internal energy and transmutations at LENR are the result of redistribution inner energy of whole system.

  1. Deforestation and Cattle Ranching in the Brazilian Amazon: External Capital and Household Processes

    E-Print Network [OSTI]

    Walker, Robert T.

    Deforestation and Cattle Ranching in the Brazilian Amazon: External Capital and Household Processes. INTRODUCTION Pasture creation and cattle ranches have been identi®ed as major factors in tropical defores of cattle ranching in Brazil has been particularly notable. Spurred by government incentive programs in Para

  2. Plasma density inside a femtosecond laser filament in air: Strong dependence on external focusing

    E-Print Network [OSTI]

    Becker, Andreas

    Plasma density inside a femtosecond laser filament in air: Strong dependence on external focusing generated in air. The control of plasma filament parameters is suitable for many applications such as remote and intense laser pulses in air has stimulated many research interests because of prom- ising applications

  3. MODELING CITIES WITH CONGESTION AND AGGLOMERATION EXTERNALITIES: THE EFFICIENCY OF CONGESTION TOLLS, LABOR

    E-Print Network [OSTI]

    Kockelman, Kara M.

    1 MODELING CITIES WITH CONGESTION AND AGGLOMERATION EXTERNALITIES: THE EFFICIENCY OF CONGESTION, Agglomeration, Pigouvian Congestion Tolling, Urban Growth Boundaries 1. INTRODUCTION Cities are full pollution and greenhouse gases, and raises a community's energy demands. Across the U.S.'s early 500 urban

  4. Fracture response of externally flawed aluminum cylindrical shells under internal gaseous detonation loading

    E-Print Network [OSTI]

    Barr, Al

    Fracture response of externally flawed aluminum cylindrical shells under internal gaseous. Experiments were performed to observe the fracture behavior of thin- wall and initially-flawed aluminum tubes to different fracture events are analyzed. Keywords: tube fracture, detonation, crack branching, crack curving

  5. Guidelines for external PhD faculty opponents and examination committee members

    E-Print Network [OSTI]

    1 Guidelines for external PhD faculty opponents and examination committee members This document is a description of the procedures for PhD examinations at the Faculty of Engineering (LTH) at Lund University relevant to the thesis discipline and your contribution is of great value in the quality assurance of PhD

  6. Adapting Task Utility in Externally Triggered Energy Harvesting Wireless Sensing Systems

    E-Print Network [OSTI]

    Simunic, Tajana

    Adapting Task Utility in Externally Triggered Energy Harvesting Wireless Sensing Systems Jamie tajana@ucsd.edu Abstract--Energy harvesting sensor nodes eliminate the need for post-deployment physical the utility of their tasks to accommodate the energy availability. For example, on sunny days, a solar

  7. The Effect of an Externally Attached Neutrally Buoyant Transmitter on Mortal Injury during Simulated Hydroturbine Passage

    SciTech Connect (OSTI)

    Brown, Richard S.; Pflugrath, Brett D.; Carlson, Thomas J.; Deng, Zhiqun

    2012-02-03

    On their seaward migration, juvenile salmonids commonly pass hydroelectric dams. Fish passing through hydroturbines experience a rapid decrease in pressure as they pass by the turbine blade and the severity of this decompression can be highly variable. This rapid decrease in pressure can result in injuries such as swim bladder rupture, exophthalmia, and emboli and hemorrhaging in the fins and tissues. However, recent research indicates that the presence of a telemetry tag (acoustic, radio, inductive) implanted inside the coelom of a juvenile salmon increases the likelihood that the fish will be injured or die during turbine passage. Thus, previous research conducted using telemetry tags implanted into the coelom of fish may have been inaccurate. Thus, a new technique is needed to provide unbiased estimates of survival through turbines. This research provides an evaluation of the effectiveness of a neutrally buoyant externally attached acoustic transmitter. Both nontagged fish and fish tagged with a neutrally buoyant external transmitter were exposed to a range of rapid decompressions simulating turbine passage. Juvenile Chinook salmon tagged with a neutrally buoyant externally attached acoustic transmitter did not receive a higher degree of barotrauma than their nontagged counterparts. We suggest that future research include field-based comparisons of survival and behavior among fish tagged with a neutrally buoyant external transmitter and those internally implanted with transmitters.

  8. Final Independent External Peer Review Report Olmsted Locks and Dam 52 and 53 Replacement

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Final Independent External Peer Review Report Olmsted Locks and Dam 52 and 53 Replacement Project Review Report Olmsted Locks and Dam 52 and 53 Replacement Project Post Authorization Change Report--0002 Task Order: 0005 #12;This page is intentionally left blank. #12;Olmsted Locks and Dam PACR IEPR i

  9. Final Independent External Peer Review Report Olmsted Locks and Dam 52 and 53 Replacement

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Final Independent External Peer Review Report Olmsted Locks and Dam 52 and 53 Replacement Project Review Report Olmsted Locks and Dam 52 and 53 Replacement Project Updated Cost Estimate Peer Review and Dam 52 and 53 Replacement Project Updated Cost Estimate Peer Review EXECUTIVE SUMMARY Project

  10. Final Independent External Peer Review Report Melvin Price Wood River Underseepage

    E-Print Network [OSTI]

    US Army Corps of Engineers

    EXECUTIVE SUMMARY Project Background and Purpose The purpose of the Melvin Price Wood River Underseepage Price Wood River LRR and the overall scope of the project, the final panel members were selectedFinal Independent External Peer Review Report Melvin Price Wood River Underseepage Limited

  11. Dependence of climate response on meridional structure of external thermal forcing

    E-Print Network [OSTI]

    Xie, Shang-Ping

    1 Dependence of climate response on meridional structure of external thermal forcing Sarah M. Kang* School of Urban and Environmental Engineering Ulsan National Institute of Science and Technology Shang Engineering Ulsan National Institute of Science and Technology UNIST-gil 50, Ulsan 689-798, Republic of Korea

  12. A Cost-Driven Fracture Heuristics to Minimize External Sliver Length

    E-Print Network [OSTI]

    Zakhor, Avideh

    A Cost-Driven Fracture Heuristics to Minimize External Sliver Length Xu Ma, Shangliang Jiang lithography, mask pattern is first fractured into basic trapezoids, and then fabricated by the variable shaped beam mask writing machine. Ideally, mask fracture tools aim at both suppressing the trapezoid count

  13. Automated External Defibrillator Program 10/04/13 Page 1 of 4 Office of Risk Management

    E-Print Network [OSTI]

    Moore, Paul A.

    Automated External Defibrillator Program 10/04/13 Page 1 of 4 Office of Risk Management Automated to the appropriate energy level and automatically deliver a shock or advise the operator to deliver the shock. AED storage cabinet for ease of access. It should be noted that some AED's may be moved temporarily to provide

  14. ICP External

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergy HeadquartersFuelB IMSofNewsletterGuidingUpdateofMarch 21, 2012 ICEIWGSeptember 21,

  15. Nuclear medicine imaging system

    DOE Patents [OSTI]

    Bennett, G.W.; Brill, A.B.; Bizais, Y.J.C.; Rowe, R.W.; Zubal, I.G.

    1983-03-11

    It is an object of this invention to provide a nuclear imaging system having the versatility to do positron annihilation studies, rotating single or opposed camera gamma emission studies, and orthogonal gamma emission studies. It is a further object of this invention to provide an imaging system having the capability for orthogonal dual multipinhole tomography. It is another object of this invention to provide a nuclear imaging system in which all available energy data, as well as patient physiological data, are acquired simultaneously in list mode.

  16. Colour Image Segmentation Wladyslaw Skarbek

    E-Print Network [OSTI]

    Koschan, Andreas

    Colour Image Segmentation A Survey Wladyslaw Skarbek Institute of Computer Science Polish Academy . . . . . . . . . . . . . . . . . . . . . . . . 23 4.2.1 Colour image segmentation and labeling through multiediting and condensing

  17. Image portion identification methods, image parsing methods, image parsing systems, and articles of manufacture

    DOE Patents [OSTI]

    Lassahn, Gordon D.; Lancaster, Gregory D.; Apel, William A.; Thompson, Vicki S.

    2013-01-08

    Image portion identification methods, image parsing methods, image parsing systems, and articles of manufacture are described. According to one embodiment, an image portion identification method includes accessing data regarding an image depicting a plurality of biological substrates corresponding to at least one biological sample and indicating presence of at least one biological indicator within the biological sample and, using processing circuitry, automatically identifying a portion of the image depicting one of the biological substrates but not others of the biological substrates.

  18. Imaging through scattering

    E-Print Network [OSTI]

    Satat, Guy

    2015-01-01

    In this thesis we demonstrate novel methods to overcome optical scattering in order to resolve information about hidden scenes, in particular for biomedical applications. Imaging through scattering media has long been a ...

  19. Photothermal imaging scanning microscopy

    DOE Patents [OSTI]

    Chinn, Diane (Pleasanton, CA); Stolz, Christopher J. (Lathrop, CA); Wu, Zhouling (Pleasanton, CA); Huber, Robert (Discovery Bay, CA); Weinzapfel, Carolyn (Tracy, CA)

    2006-07-11

    Photothermal Imaging Scanning Microscopy produces a rapid, thermal-based, non-destructive characterization apparatus. Also, a photothermal characterization method of surface and subsurface features includes micron and nanoscale spatial resolution of meter-sized optical materials.

  20. Quantum-mimetic imaging

    E-Print Network [OSTI]

    Venkatraman, Dheera

    2015-01-01

    Many recent experiments have explored the use of nonclassical states of light to perform imaging or sensing. Although these experiments require quantum descriptions of light to explain their behavior, the advantages they ...

  1. Building an urban image

    E-Print Network [OSTI]

    Russin, Andrew J

    1992-01-01

    This design project explores the principles of "urban legibility" and "shared space". The readability, or imageability (in Kevin Lynch's term) of a city results from the recognition of larger urban patterns, organizations, ...

  2. Reflective optical imaging system

    DOE Patents [OSTI]

    Shafer, David R. (Fairfield, CT)

    2000-01-01

    An optical system compatible with short wavelength (extreme ultraviolet) radiation comprising four reflective elements for projecting a mask image onto a substrate. The four optical elements are characterized in order from object to image as convex, concave, convex and concave mirrors. The optical system is particularly suited for step and scan lithography methods. The invention increases the slit dimensions associated with ringfield scanning optics, improves wafer throughput and allows higher semiconductor device density.

  3. The SDSS Imaging Pipelines

    E-Print Network [OSTI]

    Robert Lupton; James E. Gunn; Zeljko Ivezic; Gillian R. Knapp; Stephen Kent; Naoki Yasuda

    2001-05-24

    We summarise the properties of the Sloan Digital Sky Survey (SDSS) project, discuss our software infrastructure, and outline the architecture of the SDSS image processing pipelines. We then discuss two of the algorithms used in the SDSS image processing; the KL-transform based modelling of the spatial variation of the PSF, and the use of galaxy models in star/galaxy separation. We conclude with the first author's personal opinions on the challenges that the astronomical community faces with major software projects.

  4. Fluid Imaging of Enhanced Geothermal Systems

    Broader source: Energy.gov [DOE]

    Project objectives: Attempting to Image EGS Fracture & Fluid Networks; Employing joint Geophysical Imaging Technologies.

  5. Content-Aware Image enhancement

    E-Print Network [OSTI]

    Schettini, Raimondo

    1 Content-Aware Image enhancement R. Schettini www.ivl.disco.unimib.it 8 Faculties, 61 Degree Recognition Content-based retrieval Quality Assessment Content-Aware Image Enhancement Presentation Outline Processing Content aware image enhancement We focus here on image based features. And show how to exploit

  6. Quantity and Price Controls for the Correction of Externalities under Uncertain Damages: Evidence from a Laboratory Experimenta

    E-Print Network [OSTI]

    Lin, C.-Y. Cynthia

    Quantity and Price Controls for the Correction of Externalities under Uncertain Damages: Evidence theory predicts that quantity (e.g., tradable permits) and price (e.g., taxes) instruments uncertainty, experimental economics, externalities, price and quantity controls, tradable permit systems a

  7. Regulations for External PhD Candidates 01-07-2014 / 14N.002075 Status: final version

    E-Print Network [OSTI]

    van Suijlekom, Walter

    Regulations for External PhD Candidates 01-07-2014 / 14N.002075 Status: final version 1Nijmegen School of Management Regulations for External PhD Candidates of the Institute for Management Research on the status of a PhD candidate (as summarized in the table in the appendix). 1 Basis The Institute

  8. Published in Philosophia 31 (2004), 345-54. AN ARGUMENT FOR THE INCONSISTENCY OF CONTENT EXTERNALISM AND

    E-Print Network [OSTI]

    Edinburgh, University of

    2004-01-01

    1 Published in Philosophia 31 (2004), 345-54. AN ARGUMENT FOR THE INCONSISTENCY OF CONTENT of content externalism and epistemic internalism are inconsistent. I Whereas a number of recent articles have focussed upon whether the thesis of content externalism is compatible with a certain sort of knowledge

  9. Computation of the Flow of a Dual-Stream Jet with External Solid and Perforated Wedge Deflectors for

    E-Print Network [OSTI]

    Papamoschou, Dimitri

    Computation of the Flow of a Dual-Stream Jet with External Solid and Perforated Wedge Deflectors of the external jet plume with solid and perforated deflector flaps, the latter with 50% porosity. Flow computation for perforated flaps presents a particular challenge and is handled by use of a localized body

  10. BAYESIAN ENSEMBLE LEARNING FOR MEDICAL IMAGE DENOISING

    E-Print Network [OSTI]

    Oh, Hyuntaek

    2012-08-31

    Medical images are often affected by random noise because of both image acquisition from the medical modalities and image transmission from modalities to workspace in the main computer. Medical image denoising removes noise from the CT or MR images...

  11. Forcing a unitary transformation by an external field: comparing two approaches based on optimal control theory

    E-Print Network [OSTI]

    Jose P. Palao; Ronnie Kosloff

    2002-08-24

    A quantum gate is realized by specific unitary transformations operating on states representing qubits. Considering a quantum system employed as an element in a quantum computing scheme, the task is therefore to enforce the pre-specified unitary transformation. This task is carried out by an external time dependent field. Optimal control theory has been suggested as a method to compute the external field which alters the evolution of the system such that it performs the desire unitary transformation. This study compares two recent implementations of optimal control theory to find the field that induces a quantum gate. The first approach is based on the equation of motion of the unitary transformation. The second approach generalizes the state to state formulation of optimal control theory. This work highlight the formal relation between the two approaches.

  12. Transport properties of a charged drop in an external electromagnetic field

    E-Print Network [OSTI]

    S. Bondarenko; K. Komoshvili; A. Prygarin

    2015-10-26

    We investigate adiabatic expansion of a charged and rotating fireball consisting of weekly interacting particles, which is initially perturbed by an external electromagnetic field. A framework for the perturbative calculation of the non-equilibrium distribution function of the fireball is considered and the distribution function is calculated to the first order in the perturbative expansion. This distribution function, which describes the evolution of the droplet with constant entropy, allows to calculate momentum flux tensor and viscosity coefficients of the expanding system. We show, that these viscosity coefficients depend on the initial angular velocity of the fireball and on the strength of its initial perturbation by the external field. Obtained results are applied to the phenomenology of the viscosity to the entropy ratio calculated in lattice models.

  13. Transport properties of a charged drop in an external electromagnetic field

    E-Print Network [OSTI]

    Bondarenko, S; Prygarin, A

    2015-01-01

    We investigate adiabatic expansion of a charged and rotating fireball consisting of weekly interacting particles, which is initially perturbed by an external electromagnetic field. A framework for the perturbative calculation of the non-equilibrium distribution function of the fireball is considered and the distribution function is calculated to the first order in the perturbative expansion. This distribution function, which describes the evolution of the droplet with constant entropy, allows to calculate momentum flux tensor and viscosity coefficients of the expanding system. We show, that these viscosity coefficients depend on the initial angular velocity of the fireball and on the strength of its initial perturbation by the external field. Obtained results are applied to the phenomenology of the viscosity to the entropy ratio calculated in lattice models.

  14. Effects of Magnetic Nanoparticles and External Magnetostatic Field on the Bulk Heterojunction Polymer Solar Cells

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

    Wang, Kai; Yi, Chao; Liu, Chang; Hu, Xiaowen; Chuang, Steven; Gong, Xiong

    2015-03-18

    The price of energy to separate tightly bound electron-hole pair (or charge-transfer state) and extract freely movable charges from low-mobility materials represents fundamental losses for many low-cost photovoltaic devices. In bulk heterojunction (BHJ) polymer solar cells (PSCs), approximately 50% of the total efficiency lost among all energy loss pathways is due to the photogenerated charge carrier recombination within PSCs and low charge carrier mobility of disordered organic materials. To address these issues, we introduce magnetic nanoparticles (MNPs) and orientate these MNPS within BHJ composite by an external magnetostatic field. Over 50% enhanced efficiency was observed from BHJ PSCs incorporated withmore »MNPs and an external magnetostatic field alignment when compared to the control BHJ PSCs. The optimization of BHJ thin film morphology, suppression of charge carrier recombination, and enhancement in charge carrier collection result in a greatly increased short-circuit current density and fill factor, as a result, enhanced power conversion efficiency.« less

  15. Dispersion relations of externally and thermally excited dust lattice modes in 2D complex plasma crystals

    SciTech Connect (OSTI)

    Yang Xuefeng; Cui Jian; Zhang Yuan [School of Mathematical Sciences, Dalian University of Technology, Dalian 116024 (China); Liu Yue [School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 (China)

    2012-07-15

    The dispersion relations of the externally and thermally (naturally) excited dust lattice modes (both longitudinal and transverse) in two-dimensional Debye-Yukawa complex plasma crystals are investigated. The dispersion relations are calculated numerically by taking the neutral gas damping effects into account and the numerical results are in agreement with the experimental data given by Nunomura et al.[Phys. Rev. E 65, 066402 (2002)]. It is found that for the mode excited by an external disturbance with a real frequency, the dispersion properties are changed at a critical frequency near where the group velocity of the mode goes to zero. Therefore, the high frequency branch with negative dispersion cannot be reached. In contrast, for the thermally excited mode, the dispersion curve can extend all the way to the negative dispersion region, while a 'cut-off' wave number exists at the long wavelength end of the dispersion in the transverse mode.

  16. Effects of Magnetic Nanoparticles and External Magnetostatic Field on the Bulk Heterojunction Polymer Solar Cells

    SciTech Connect (OSTI)

    Wang, Kai; Yi, Chao; Liu, Chang; Hu, Xiaowen; Chuang, Steven; Gong, Xiong

    2015-03-18

    The price of energy to separate tightly bound electron-hole pair (or charge-transfer state) and extract freely movable charges from low-mobility materials represents fundamental losses for many low-cost photovoltaic devices. In bulk heterojunction (BHJ) polymer solar cells (PSCs), approximately 50% of the total efficiency lost among all energy loss pathways is due to the photogenerated charge carrier recombination within PSCs and low charge carrier mobility of disordered organic materials. To address these issues, we introduce magnetic nanoparticles (MNPs) and orientate these MNPS within BHJ composite by an external magnetostatic field. Over 50% enhanced efficiency was observed from BHJ PSCs incorporated with MNPs and an external magnetostatic field alignment when compared to the control BHJ PSCs. The optimization of BHJ thin film morphology, suppression of charge carrier recombination, and enhancement in charge carrier collection result in a greatly increased short-circuit current density and fill factor, as a result, enhanced power conversion efficiency.

  17. Joint probability safety assessment for NPP defense infrastructure against extreme external natural hazards

    SciTech Connect (OSTI)

    Guilin, L.; Defu, L.; Huajun, L.; Fengqing, W.; Tao, Z.

    2012-07-01

    With the increasing tendency of natural hazards, the typhoon, hurricane and tropical Cyclone induced surge, wave, precipitation, flood and wind as extreme external loads menacing Nuclear Power Plants (NPP) in coastal and inland provinces of China. For all of planned, designed And constructed NPP the National Nuclear Safety Administration of China and IAEA recommended Probable Maximum Hurricane /Typhoon/(PMH/T), Probable Maximum Storm Surge (PMSS), Probable Maximum Flood (PMF), Design Basis Flood (DBF) as safety regulations for NPP defense infrastructures. This paper discusses the joint probability analysis of simultaneous occurrence typhoon induced extreme external hazards and compare with IAEA 2006-2009 recommended safety regulation design criteria for some NPP defense infrastructures along China coast. (authors)

  18. Energy Systems Integration Facility (ESIF) External Stakeholders Workshop: Workshop Proceedings, 9 October 2008, Golden, Colorado

    SciTech Connect (OSTI)

    Komomua, C.; Kroposki, B.; Mooney, D.; Stoffel, T.; Parsons, B.; Hammond, S.; Kutscher, C.; Remick, R.; Sverdrup, G.; Hawsey, R.; Pacheco, M.

    2009-01-01

    On October 9, 2008, NREL hosted a workshop to provide an opportunity for external stakeholders to offer insights and recommendations on the design and functionality of DOE's planned Energy Systems Infrastructure Facility (ESIF). The goal was to ensure that the planning for the ESIF effectively addresses the most critical barriers to large-scale energy efficiency (EE) and renewable energy (RE) deployment. This technical report documents the ESIF workshop proceedings.

  19. Utility-Interconnected Photovoltaic Systems: Evaluating the Rationale for the Utility-Accessible External Disconnect Switch

    SciTech Connect (OSTI)

    Coddington, M.; Margolis, R.M.; Aabakken, J.

    2008-01-01

    The utility-accessible alternating current (AC) external disconnect switch (EDS) for distributed generators, including photovoltaic (PV) systems, is a hardware feature that allows a utility?s employees to manually disconnect a customer-owned generator from the electricity grid. This paper examines the utility-accessible EDS debate in the context of utility-interactive PV systems for residential and small commercial installations. It also evaluates the rationale for EDS requirements.

  20. Observation of slow light in the noise spectrum of a vertical external cavity surface emitting laser

    E-Print Network [OSTI]

    A. El Amili; B. -X. Miranda; F. Goldfarb; G. Baili; G. Beaudoin; I. Sagnes; F. Bretenaker; M. Alouini

    2010-10-27

    The role of coherent population oscillations is evidenced in the noise spectrum of an ultra-low noise lasers. This effect is isolated in the intensity noise spectrum of an optimized single-frequency vertical external cavity surface emitting laser. The coherent population oscillations induced by the lasing mode manifest themselves through their associated dispersion that leads to slow light effects probed by the spontaneous emission present in the non-lasing side modes.