Sample records for latest 12-month period

  1. Press TAB to move to input areas. Press UP or DOW Confirm consecutive 12-month period

    E-Print Network [OSTI]

    Abolmaesumi, Purang

    -year to month-year) January 2011 - December 2011 Type of Public Agency (Sector): Post-Secondary EducationalElectricity Wood Energy Consumption and Greenhouse Gas Emissions Reporting - for 2011 Total (These columns Institution Agency Sub-sector University Organization Name Queen's University at Kingston Renewable? If Yes

  2. FedEx Express Gasoline Hybrid Electric Delivery Truck Evaluation: 12-Month Report

    SciTech Connect (OSTI)

    Barnitt, R.

    2011-01-01T23:59:59.000Z

    This report summarizes the data obtained in a 12-month comparison of three gasoline hybrid electric delivery vehicles with three comparable diesel vehicles. The data show that there was no statistical difference between operating cost per mile of the two groups of vehicles. As expected, tailpipe emissions were considerably lower across all drive cycles for the gHEV than for the diesel vehicle.

  3. Dow EmployAbility Internship Programme 2014 3 to 12 months

    E-Print Network [OSTI]

    Nabben, Reinhard

    Dow EmployAbility Internship Programme 2014 Start Date Flexible Duration 3 to 12 months Location of any degree discipline returning to education following completion of the internship. Some internship marketing or HR related qualifications. Compensation Meets or exceeds minimum wage at the internship

  4. Signal transduction research has made some glowing progress in the past 12 months. Recent advances in fluorescent

    E-Print Network [OSTI]

    Tsien, Roger Y.

    416 Signal transduction research has made some glowing progress in the past 12 months. Recent Medical Institute, 310 Cellular and Molecular Medicine West, 0647, University of California at San Diego Progress in understanding signal transduction, especially in complex tissues such as those found

  5. Assistant Professor in Quantitative Genomics POSITION: This is a 12-month tenure track faculty position with a 80% research and

    E-Print Network [OSTI]

    Arnold, Jonathan

    Assistant Professor in Quantitative Genomics POSITION: This is a 12-month tenure track faculty, statistical genomics, genome-wide analysis, gene-environment interactions, and/or epigenetics of crop plants/statistical genomics to crop plants is expected. UGA offers a vibrant research environment with potential

  6. LATEST PROJECTS & Preview a few of our latest research projects

    E-Print Network [OSTI]

    California at Davis, University of

    , disseminate informa- tion, and facilitate programs that reduce cooling system electrical demand and energy applied research through Western Cooling Challenge Demonstrations and many other ongoing projects. Our feaLATEST PROJECTS & UPDATES Preview a few of our latest research projects & updates pg. 10 OUTREACH

  7. LATEST PROJECTS & Preview a few of our latest research projects

    E-Print Network [OSTI]

    California at Davis, University of

    and development, disseminate informa- tion, and facilitate programs that reduce cooling system electrical demandLATEST PROJECTS & UPDATES Preview a few of our latest research projects & updates pg. 8 ENERGY?: pg. 5 #12;WESTERN COOLING CONNECTION2 Beutler Carrier Coolerado Davis Energy Group Integrated Comfort

  8. LATEST PROJECTS & Preview a few of our latest research projects

    E-Print Network [OSTI]

    California at Davis, University of

    , and facilitate programs that reduce cooling system electrical demand and energy consumption in the Western United usage in evaporative cooling systems · Aerosol Building Envelopes: we successfully sealed over 50LATEST PROJECTS & UPDATES Preview a few of our latest research projects & updates pg. 7 WCEC

  9. Double Chooz: Latest results

    E-Print Network [OSTI]

    J. I. Crespo-Anadón; for the Double Chooz collaboration

    2014-12-11T23:59:59.000Z

    The latest results from the Double Chooz experiment on the neutrino mixing angle $\\theta_{13}$ are presented. A detector located at an average distance of 1050 m from the two reactor cores of the Chooz nuclear power plant has accumulated a live time of 467.90 days, corresponding to an exposure of 66.5 GW-ton-year (reactor power $\\times$ detector mass $\\times$ live time). A revised analysis has boosted the signal efficiency and reduced the backgrounds and systematic uncertainties compared to previous publications, paving the way for the two detector phase. The measured $\\sin^2 2\\theta_{13} = 0.090^{+0.032}_{-0.029}$ is extracted from a fit to the energy spectrum. A deviation from the prediction above a visible energy of 4 MeV is found, being consistent with an unaccounted reactor flux effect, which does not affect the $\\theta_{13}$ result. A consistent value of $\\theta_{13}$ is measured in a rate-only fit to the number of observed candidates as a function of the reactor power, confirming the robustness of the result.

  10. Randomized, Multicenter Trial on the Effect of Radiation Therapy on Plantar Fasciitis (Painful Heel Spur) Comparing a Standard Dose With a Very Low Dose: Mature Results After 12 Months' Follow-Up

    SciTech Connect (OSTI)

    Niewald, Marcus, E-mail: marcus.niewald@uks.eu [Department of Radiation Oncology, Saarland University Medical Center, Homburg/Saar (Germany)] [Department of Radiation Oncology, Saarland University Medical Center, Homburg/Saar (Germany); Seegenschmiedt, M. Heinrich [Radiotherapy Center, Hamburg (Germany)] [Radiotherapy Center, Hamburg (Germany); Micke, Oliver [Franziskus Hospital, Bielefeld (Germany)] [Franziskus Hospital, Bielefeld (Germany); Graeber, Stefan [Institute for Medical Biometry, Epidemiology and Medical Informatics, Saarland University Medical Center, Homburg/Saar (Germany)] [Institute for Medical Biometry, Epidemiology and Medical Informatics, Saarland University Medical Center, Homburg/Saar (Germany); Muecke, Ralf [Lippe Hospital, Lemgo (Germany)] [Lippe Hospital, Lemgo (Germany); Schaefer, Vera; Scheid, Christine; Fleckenstein, Jochen; Licht, Norbert; Ruebe, Christian [Department of Radiation Oncology, Saarland University Medical Center, Homburg/Saar (Germany)] [Department of Radiation Oncology, Saarland University Medical Center, Homburg/Saar (Germany)

    2012-11-15T23:59:59.000Z

    Purpose: To conduct a randomized trial of radiation therapy for painful heel spur, comparing a standard dose with a very low dose. Methods and Materials: Sixty-six patients were randomized to receive radiation therapy either with a total dose of 6.0 Gy applied in 6 fractions of 1.0 Gy twice weekly (standard dose) or with a total dose of 0.6 Gy applied in 6 fractions of 0.1 Gy twice weekly (low dose). In all patients lateral opposing 4- to 6-MV photon beams were used. The results were measured using a visual analogue scale, the Calcaneodynia score, and the SF12 health survey. The fundamental phase of the study ended after 3 months, and the follow-up was continued up to 1 year. Patients with insufficient pain relief after 3 months were offered reirradiation with the standard dosage at any time afterward. Results: Of 66 patients, 4 were excluded because of withdrawal of consent or screening failures. After 3 months the results in the standard arm were highly significantly superior compared with those in the low-dose arm (visual analogue scale, P=.001; Calcaneodynia score, P=.027; SF12, P=.045). The accrual of patients was stopped at this point. Further evaluation after 12 months' follow-up showed the following results: (1) highly significant fewer patients were reirradiated in the standard arm compared with the low-dose arm (P<.001); (2) the results of patients in the low-dose arm who were reirradiated were identical to those in the standard arm not reirradiated (reirradiation as a salvage therapy if the lower dose was ineffective); (3) patients experiencing a favorable result after 3 months showed this even after 12 months, and some results even improved further between 3 and 12 months. Conclusions: This study confirms the superior analgesic effect of radiation therapy with 6-Gy doses on painful heel spur even for a longer time period of at least 1 year.

  11. External Beam Radiotherapy for Clinically Localized Hormone-Refractory Prostate Cancer: Clinical Significance of Nadir Prostate-Specific Antigen Value Within 12 Months

    SciTech Connect (OSTI)

    Ogawa, Kazuhiko [Department of Radiology, University of the Ryukyus, Okinawa, Osaka (Japan)], E-mail: kogawa@med.u-ryukyu.ac.jp; Nakamura, Katsumasa [Department of Clinical Radiology, Fukuoka University, Fukuoka (Japan); Sasaki, Tomonari [Department of Radiation Oncology, National Kyushu Center, Fukuoka (Japan); Onishi, Hiroshi [Department of Radiology, Yamanashi University, Yamanashi (Japan); Koizumi, Masahiko [Department of Radiation Oncology, Osaka University, Osaka (Japan); Shioyama, Yoshiyuki [Department of Clinical Radiology, Kyushu University, Fukuoka (Japan); Araya, Masayuki [Department of Radiology, Yamanashi University, Yamanashi (Japan); Mukumoto, Nobutaka M.S. [Department of Medical Physics and Engineering, Osaka University, Osaka (Japan); Mitsumori, Michihide [Department of Radiation Oncology and Image-Applied Therapy, Kyoto University, Kyoto (Japan); Teshima, Teruki [Department of Medical Physics and Engineering, Osaka University, Osaka (Japan)

    2009-07-01T23:59:59.000Z

    Purpose: To analyze retrospectively the results of external beam radiotherapy for clinically localized hormone-refractory prostate cancer and investigate the clinical significance of nadir prostate-specific antigen (PSA) value within 12 months (nPSA12) as an early estimate of clinical outcomes after radiotherapy. Methods and Materials: Eighty-four patients with localized hormone-refractory prostate cancer treated with external beam radiotherapy were retrospectively reviewed. The total radiation doses ranged from 30 to 76 Gy (median, 66 Gy), and the median follow-up period for all 84 patients was 26.9 months (range, 2.7-77.3 months). Results: The 3-year actuarial overall survival, progression-free survival (PFS), and local control rates in all 84 patients after radiotherapy were 67%, 61%, and 93%, respectively. Although distant metastases and/or regional lymph node metastases developed in 34 patients (40%) after radiotherapy, local progression was observed in only 5 patients (6%). Of all 84 patients, the median nPSA12 in patients with clinical failure and in patients without clinical failure was 3.1 ng/mL and 0.5 ng/mL, respectively. When dividing patients according to low (<0.5 ng/mL) and high ({>=}0.5 ng/mL) nPSA12 levels, the 3-year PFS rate in patients with low nPSA12 and in those with high nPSA12 was 96% and 44%, respectively (p < 0.0001). In univariate analysis, nPSA12 and pretreatment PSA value had a significant impact on PFS, and in multivariate analysis nPSA12 alone was an independent prognostic factor for PFS after radiotherapy. Conclusions: External beam radiotherapy had an excellent local control rate for clinically localized hormone-refractory prostate cancer, and nPSA12 was predictive of clinical outcomes after radiotherapy.

  12. SJSU Information Support Services Create Contracts for 12-Month Appointment info-support@sjsu.edu, 408-924-1530 Page 1

    E-Print Network [OSTI]

    Su, Xiao

    . Note Data about the position will populate. Term Enter the fall term of the current year in a four demonstrates how to create a contract for a 12-month appointment by entering effective dates that encompass hyperlink. 3. Click the CSU Contract Data hyperlink. The CSU Contract Data search page displays. 4. Click

  13. Latest News | Critical Materials Institute

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

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

  14. Sandia National Laboratories: Latest News

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's PossibleRadiationImplementingnpitche Home About npitcheSandianPrograms:Co-ops: GoLatest News IEEE

  15. What Is Your Latest Energy Efficient Purchase? | Department of...

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

    Latest Energy Efficient Purchase? What Is Your Latest Energy Efficient Purchase? February 10, 2011 - 6:30am Addthis On Tuesday, Andrea told us about her new door and the research...

  16. Latest Feature Video | The Ames 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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItemResearch > The Energy MaterialsFeatured VideosTechnologiesLatest Feature Video

  17. Latest News Releases | The Ames 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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItemResearch > The Energy MaterialsFeatured VideosTechnologiesLatest Feature

  18. Latest notices | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof Energy 2,AUDIT REPORTEnergyFarmsPower Co LtdTN LLCKirmartLGC SkyrotaLangchengLatest

  19. Latest News Releases | The Ames 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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes |Is Your HomeLatest News Releases Tribune carries magnet recycling

  20. *** Prices are subject to change. Please contact properties directly to confirm latest prices. Updated: 2/8/2013 1 BR 2 BR 2 BR 2 BR 3 BR 3 BR 4 BR

    E-Print Network [OSTI]

    Behmer, Spencer T.

    -8981 12 months $555 $665 9 months Hunter's Point 12 months $575 $650-$730 9 months Lincoln Townhomes (979

  1. Information Security Policy Manual Latest Revision: May 16, 2012

    E-Print Network [OSTI]

    Alpay, S. Pamir

    1 Information Security Policy Manual Latest Revision: May 16, 2012 #12;2 Table of Contents Information Security Policy Manual...............................................................................................................................................17 Information Security Glossary

  2. Latest Results from BNL and RHIC--2013

    E-Print Network [OSTI]

    M. J. Tannenbaum

    2014-04-22T23:59:59.000Z

    A selection of results from the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory (BNL) from 2012 to 2013 is presented together with a few newsworthy developments in this period. The move of the g-2 magnet from BNL to Fermilab for the "fifth muon g-2 experiment" inspired a brief discussion of the original g-2 experiments at CERN. Highlights of the past year include a change in the measurement of the suppression of large transverse momentum ($p_T$) particles in the Quark Gluon Plasma to a measure of the fractional shift in the observed $p_T$ spectrum from the expected A+A spectrum for independent collisions as an estimate of the energy loss in the medium. The p+Pb run at LHC in early 2013 spurred new or improved measurements in d+Au at RHIC which included the observation of elliptical flow in d+Au collisions and measurements of transverse energy ($E_T$) spectra in p-p, d+Au and Au+Au collisions at 200 GeV nucleon-nucleon c.m. energy which demonstrated that constituent quarks are the fundamental element of particle production in all 3 systems. Measurements of identified hadrons in d+Au show a huge Cronin effect for protons but no effect for mesons. An important step for the future was the acquisition by BNL of the superconducting solenoid used in the BABAR experiment at SLAC for use in future experiments at RHIC and possibly eRHIC, starting with an upgrade of the PHENIX experiment called sPHENIX.

  3. EDELWEISS dark matter search: Latest results and future plans

    E-Print Network [OSTI]

    Boyer, Edmond

    EDELWEISS dark matter search: Latest results and future plans Johann Gironnet Institut de Physique is a direct search for WIMP dark matter using cryogenic heat-and-ionization germanium detectors. We report the 4850 meter- water-equivalent rock cover reduces the cosmic-ray background by six order of magnitude

  4. Latest Jurassic-early Cretaceous regressive facies, northeast Africa craton

    SciTech Connect (OSTI)

    van Houten, F.B.

    1980-06-01T23:59:59.000Z

    Nonmarine to paralic detrital deposits accumulated in six large basins between Algeria and the Arabo-Nubian shield during major regression in latest Jurassic and Early Cretaceous time. The Ghadames Sirte (north-central Libya), and Northern (Egypt) basins lay along the cratonic margin of northeastern Africa. The Murzuk, Kufra, and Southern (Egypt) basins lay in the south within the craton. Data for reconstructing distribution, facies, and thickness of relevant sequences are adequate for the three northern basins only. High detrital influx near the end of Jurassic time and in mid-Cretaceous time produced regressive nubian facies composed largely of low-sinuosity stream and fahdelta deposits. In the west and southwest the Ghadames, Murzuk, and Kufra basins were filled with a few hundred meters of detritus after long-continued earlier Mesozoic aggradation. In northern Egypt the regressive sequence succeeded earlier Mesozoic marine sedimentation; in the Sirte and Southern basins correlative deposits accumulated on Precambrian and Variscan terranes after earlier Mesozoic uplift and erosion. Waning of detrital influx into southern Tunisia and adjacent Libya in the west and into Israel in the east initiated an Albian to early Cenomanian transgression of Tethys. By late Cenomanian time it had flooded the entire cratonic margin, and spread southward into the Murzuk and Southern basins, as well as onto the Arabo-Nubian shield. Latest Jurassic-earliest Cretaceous, mid-Cretaceous, and Late Cretaceous transgressions across northeastern Africa recorded in these sequences may reflect worldwide eustatic sea-level rises. In contrast, renewed large supply of detritus during each regression and a comparable subsidence history of intracratonic and marginal basins imply regional tectonic control. 6 figures.

  5. Text-Alternative Version: LED Replacement Lamps: Current Performance and the Latest on ENERGY STAR®

    Broader source: Energy.gov [DOE]

    Below is the text-alternative version of the LED Replacement Lamps: Current Performance and the Latest on ENERGY STAR® webcast.

  6. Students in Health Sciences at the UA simulate real hospital practice with the latest technological devices

    E-Print Network [OSTI]

    Escolano, Francisco

    , as well as maternal and child care. It is equipped with hospital beds, incubators, medical simulationStudents in Health Sciences at the UA simulate real hospital practice with the latest technological that will allow students to complete their practical training with the latest technological devices. The opening

  7. Rehabilitation engineers help people with disabilities with wireless technology LATEST NEWS

    E-Print Network [OSTI]

    Information Technology Management & Policy Sciences RELATED LINKS - Economic Development News - GTRI Annual two parallel goals: (1) to develop new and innovative ways of applying mobile wireless technologiesRehabilitation engineers help people with disabilities with wireless technology SEARCH LATEST NEWS

  8. LATEST RESULTS AND TEST PLANS FROM THE 100 mA CORNELL ERL INJECTOR SCRF CRYOMODULE

    E-Print Network [OSTI]

    Hoffstaetter, Georg

    LATEST RESULTS AND TEST PLANS FROM THE 100 mA CORNELL ERL INJECTOR SCRF CRYOMODULE M. Liepe , S developed and fabricated a SCRF injector cryomodule for the acceleration of a high current, low emittance

  9. 12 MONTHS OF SAFETY & WELLNESS DECEMBER: WINTER DRIVING

    E-Print Network [OSTI]

    Loudon, Catherine

    , winter weather hazards result in thousands of motor vehicle accidents each year: · Heavy fog can reduce vehicle Solution: · Plan ahead & consider delaying your trip if the weather is bad · Turn on your in the rain & increase the distance between you & the vehicle ahead · Maintain your vehicle & regularly check

  10. A 12-month, full-time Program Begining in January

    E-Print Network [OSTI]

    Abolmaesumi, Purang

    global advocacy initiatives for responsible leadership, in partnership with the United Nations Global Compact. Thought Leadership Queen's School of Business has an impressive record of cutting edge research

  11. Making water work: Program trains farmers on latest irrigation tools' techniques

    E-Print Network [OSTI]

    Wythe, Kathy

    2008-01-01T23:59:59.000Z

    tx H2O | pg. 10 Story by Kathy Wythe | pg. 10 tx H2O | pg. 11 Making water work Program trains farmers on latest irrigation tools#31; techniques Photo by Danielle Supercinski, Texas Water Resources Institute tx H2O | pg. 1 tx H2O | pg.... 12 Program trains farmers on latest irrigation tools#31; techniques Making water work Every year farmers on the Texas High Plains hear how the Ogallala Aquifer under- neath their cultivated acres is slowly being depleted. They know...

  12. Storm Water Analytical Period

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

    Protection Obeying Environmental Laws Individual Permit Storm Water Analytical Period Storm Water Analytical Period The Individual Permit authorizes the discharge of storm...

  13. Instructions for Web Browsers Make sure you have the latest version of your preferred web browser.

    E-Print Network [OSTI]

    Millar, Andrew J.

    Instructions for Web Browsers Make sure you have the latest version of your preferred web browser Alternatively you can right click the web links and choose save target as to save the PDF form. Once downloaded for reference Alternatively you can right click the web link and choose save Link as to save the PDF file. Once

  14. The Earth Institute I Corporate Circle The latest information, tools and networks to achieve sustainability

    E-Print Network [OSTI]

    The Earth Institute I Corporate Circle Fall 2009 The latest information, tools and networks to achieve sustainability #12;The Earth Institute I Corporate Circle STRATEGIC OPPORTUNITIES GOAL Engage and allow for flexibility in the nature and extent of engagement. The Earth Institute I Corporate Circle #12

  15. Tivoli Professional Certification e-Newsletter Check Out the Latest Tivoli Certifications and News

    E-Print Network [OSTI]

    & Certification Retirement -> Fund. of Enterprise Solutions Using IBM Tivoli Security 2007 Tivoli Storage Manager of the Month -> Shayne Gardener Promotions - Discounted Exams and Assessments -> "Early Bird" Specials & CERTIFICATION RETIREMENT For the latest news in exam withdrawals and certification retirement, go to: http

  16. Tivoli Professional Certification e-Check Out the Latest Tivoli Certifications

    E-Print Network [OSTI]

    Workshops -> IBM Tivoli Storage Manager V6.1 Administration Exam Withdrawal & Certification Retirement Rodriguez Promotions - Discounted Exams and Assessments -> "Early Bird" Specials for Newly Published Exams & CERTIFICATION RETIREMENT For the latest news in exam withdrawals and certification retirement, go to: http

  17. C4 expansion in the central Inner Mongolia during the latest Miocene and early Pliocene

    E-Print Network [OSTI]

    Wang, Yang

    C4 expansion in the central Inner Mongolia during the latest Miocene and early Pliocene Chunfu 2009 Editor: M.L. Delaney Keywords: C4 plants stable isotopes fossil mammals Inner Mongolia late mammalian tooth enamel samples from the central Inner Mongolia. Our samples represent a diverse group

  18. Latest revised date: October 26, 2011 Page 1 of 3 Prepared by: Department of Health & Safety S-018

    E-Print Network [OSTI]

    deYoung, Brad

    .0 OBJECTIVE: 1. 1 To reduce the possibility of personal injury resulting from contact with utility energyLatest revised date: October 26, 2011 Page 1 of 3 Prepared by: Department of Health & Safety S-018,Above&Below Ground,while ExcavatingonUniversity Property #12;Latest revised date: October 26, 2011 Page 2 of 3

  19. Threshold model and the latest NA50 data on $J/?$ suppression in Pb+Pb collisions

    E-Print Network [OSTI]

    A. K. Chaudhuri

    2003-05-26T23:59:59.000Z

    Using the QGP motivated threshold model, where all the $J/\\psi$'s are suppressed above a threshold density, we have analyzed the latest version of the NA50 data on the centrality dependence of the $J/\\psi$ over Drell-Yan ratio. The data are not well explain in the model, unless the threshold density is largely smeared. Large smeared threshold density effectively excludes creation of any deconfined medium in the collision.

  20. Business Exploration Series SkillSoft's latest content innovation, the Business Exploration Series, was designed to be visually rich and

    E-Print Network [OSTI]

    Maryland, Baltimore County, University of

    Business Exploration Series SkillSoft's latest content innovation, the Business Exploration Series to our Business Skills Courseware Library. The Business Exploration Series provides learners two different learning assets: Business Impact Series Challenge Series Analyze frequently encountered

  1. Genealogy of periodic trajectories

    SciTech Connect (OSTI)

    de Adguiar, M.A.M.; Maldta, C.P.; de Passos, E.J.V.

    1986-05-20T23:59:59.000Z

    The periodic solutions of non-integrable classical Hamiltonian systems with two degrees of freedom are numerically investigated. Curves of periodic families are given in plots of energy vs. period. Results are presented for this Hamiltonian: H = 1/2(p/sub x//sup 2/ + p/sub y//sup 2/) + 1/2 x/sup 2/ + 3/2 y/sup 2/ - x/sup 2/y + 1/12 x/sup 4/. Properties of the families of curves are pointed out. (LEW)

  2. Fourier series and periodicity

    E-Print Network [OSTI]

    Donal F. Connon

    2014-12-07T23:59:59.000Z

    A large number of the classical texts dealing with Fourier series more or less state that the hypothesis of periodicity is required for pointwise convergence. In this paper, we highlight the fact that this condition is not necessary.

  3. The latest results on top quark pair cross-section measurement

    E-Print Network [OSTI]

    Yamauchi, Katsuya; The ATLAS collaboration

    2015-01-01T23:59:59.000Z

    The latest results on top quark pair production cross-section measurement in proton-proton collisions at $\\sqrt{s} = 7\\ TeV$ and $\\sqrt{s} = 8\\ TeV$ with the ATLAS detector are reported. The inclusive cross-section was measured with 4% of uncertainty using di-lepton e-mu events. The measurement of the differential cross-section as functions of various observables such as transverse momentum and rapidity of the top quark and invariant mass of the pseudo-top-quark pair system including the results in boosted topologies are also reported. These results are compared with the various generators such as Powheg, Alpgen and MC@NLO and the various PDF sets.

  4. Latest flow results from PHENIX at RHIC - Quarks and Nuclear Physics Conference Proceedings

    E-Print Network [OSTI]

    E. Richardson; for the PHENIX Collaboration

    2012-06-22T23:59:59.000Z

    At the Relativistic Heavy Ion Collider (RHIC), key insights into the bulk properties of the hot and dense partonic matter arise from the study of azimuthal anisotropy (v_2) of the produced particles. The v_2 values indicate that the matter undergoes rapid thermalization and behaves hydrodynamically at low p_T. Furthermore, the quark scaling of v_2 for different particle species suggests that thermalization occurs at the quark level and that v_2 is the same for all quark flavors. Recently, higher order harmonic measurements (v_3, v_4) have shown the potential for insights into the medium's initial geometry and fluctuations. This proceeding discusses some of the PHENIX Collaboration's latest flow results and their implications.

  5. Latest development in seismic texture analysis for subsurface structure, facies, and reservoir characterization: A review

    SciTech Connect (OSTI)

    Gao, Dengliang

    2011-03-01T23:59:59.000Z

    In exploration geology and geophysics, seismic texture is still a developing concept that has not been sufficiently known, although quite a number of different algorithms have been published in the literature. This paper provides a review of the seismic texture concepts and methodologies, focusing on latest developments in seismic amplitude texture analysis, with particular reference to the gray level co-occurrence matrix (GLCM) and the texture model regression (TMR) methods. The GLCM method evaluates spatial arrangements of amplitude samples within an analysis window using a matrix (a two-dimensional histogram) of amplitude co-occurrence. The matrix is then transformed into a suite of texture attributes, such as homogeneity, contrast, and randomness, which provide the basis for seismic facies classification. The TMR method uses a texture model as reference to discriminate among seismic features based on a linear, least-squares regression analysis between the model and the data within an analysis window. By implementing customized texture model schemes, the TMR algorithm has the flexibility to characterize subsurface geology for different purposes. A texture model with a constant phase is effective at enhancing the visibility of seismic structural fabrics, a texture model with a variable phase is helpful for visualizing seismic facies, and a texture model with variable amplitude, frequency, and size is instrumental in calibrating seismic to reservoir properties. Preliminary test case studies in the very recent past have indicated that the latest developments in seismic texture analysis have added to the existing amplitude interpretation theories and methodologies. These and future developments in seismic texture theory and methodologies will hopefully lead to a better understanding of the geologic implications of the seismic texture concept and to an improved geologic interpretation of reflection seismic amplitude

  6. Latest revised date: October 26, 2011 Page 1 of 6 Prepared by: Department of Health & Safety S-009

    E-Print Network [OSTI]

    deYoung, Brad

    Latest revised date: October 26, 2011 Page 1 of 6 Prepared by: Department of Health & Safety S-009 Page 2 of 6 Prepared by: Department of Health & Safety S-009 Printed Copies of this Document with the Department of Health & Safety) the type of hand protection required for the specific hand hazard; Provide

  7. LATEST RESULTS FROM A SEARCH FOR NEUTRINOLESS DOUBLE BETA DECAY WITH NEMO3 AND PLANS FOR SUPERNEMO

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    LATEST RESULTS FROM A SEARCH FOR NEUTRINOLESS DOUBLE BETA DECAY WITH NEMO3 AND PLANS FOR SUPERNEMO The NEMO3 experiment is devoted to the search for neutrinoless double beta decay, as well as for accurate Experimental search for the neutrinoless double beta decay (0) is of major importance in particle physics

  8. New primordial-magnetic-field limit from the latest LIGO S5 data

    SciTech Connect (OSTI)

    Wang, S. [Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026 (China) and Institute of Theoretical Physics, Chinese Academy of Science, Beijing 100080 (China)

    2010-01-15T23:59:59.000Z

    Since the energy momentum tensor of a magnetic field always contains a spin-2 component in its anisotropic stress, stochastic primordial magnetic field (PMF) in the early universe must generate stochastic gravitational-wave (GW) background. This process will greatly affect the relic gravitational wave (RGW), which is one of the major scientific goals of the laser interferometer GW detections. Recently, the fifth science (S5) run of laser interferometer gravitational-wave observatory (LIGO) gave a latest upper limit {Omega}{sub GW}<6.9x10{sup -6} on the RGW background. Utilizing this upper limit, we derive new PMF limits: for a scale of galactic cluster {lambda}=1 Mpc, the amplitude of PMF, that produced by the electroweak phase transition, has to be weaker than B{sub {lambda}{<=}4}x10{sup -7} G; for a scale of supercluster {lambda}=100 Mpc, the amplitude of PMF has to be weaker than B{sub {lambda}{<=}9}x10{sup -11} G. In this manner, GW observation has potential to make interesting contributions to the study of primordial magnetic field.

  9. New Primordial-Magnetic-Field Limit from The Latest LIGO S5 data

    E-Print Network [OSTI]

    Shuang Wang

    2009-12-16T23:59:59.000Z

    Since the energy momentum tensor of a magnetic field always contains a spin-2 component in its anisotropic stress, stochastic primordial magnetic field (PMF) in the early universe must generate stochastic gravitational wave (GW) background. This process will greatly affect the relic gravitational wave (RGW), which is one of major scientific goals of the laser interferometer GW detections. Recently, the fifth science (S5) run of laser interferometer gravitational-wave observatory (LIGO) gave a latest upper limit $\\Omega_{GW}<6.9\\times10^{-6}$ on the RGW background. Utilizing this upper limit, we derive new PMF Limits: for a scale of galactic cluster $\\lambda=1$ Mpc, the amplitude of PMF, that produced by the electroweak phase transition (EPT), has to be weaker than $B_{\\lambda} \\leq 4\\times 10^{-7}$ Gauss; for a scale of supercluster $\\lambda=100$ Mpc, the amplitude of PMF has to be weaker than $B_{\\lambda} \\leq 9\\times 10^{-11}$ Gauss. In this manner, GW observation has potential to make interesting contributions to the study of primordial magnetic field.

  10. PERIODIC WAVELET TRANSFORMS AND PERIODICITY JOHN J. BENEDETTO AND G

    E-Print Network [OSTI]

    Benedetto, John J.

    PERIODIC WAVELET TRANSFORMS AND PERIODICITY DETECTION JOHN J. BENEDETTO #3; AND G  OTZ E. PFANDER y Key words. Continuous wavelet transform, epileptic seizure prediction, periodicity detection algorithm, optimal generalized Haar wavelets, wavelet frames on Z. AMS subject classi#12;cations. 42C99, 42C

  11. Author's personal copy Latest Pleistocene and Holocene glaciation of Baffin Island, Arctic Canada: key

    E-Print Network [OSTI]

    Briner, Jason P.

    t Melting glaciers and ice caps on Baffin Island contribute roughly half of the sea-level rise from all ice future response of arctic glaciers and ice caps to climate change motivates the use of paleodata throughout the Holocene to its present margin (Barnes Ice Cap) except for two periods of rapid retreat

  12. Representing Periodic Functions by Fourier

    E-Print Network [OSTI]

    Vickers, James

    Representing Periodic Functions by Fourier Series 23.2 Introduction In this Section we show how, then the Fourier series expansion takes the form: f(t) = a0 2 + n=1 (an cos nt + bn sin nt) Our main purpose here Fourier coefficients of a function of period 2 calculate Fourier coefficients of a function of general

  13. Mechanics of planar periodic microstructures

    E-Print Network [OSTI]

    Prange, Sharon M. (Sharon Marie)

    2007-01-01T23:59:59.000Z

    The deformation of two-dimensional periodically patterned elastomeric sheets has been shown to trigger interesting pattern changes that are both repeatable and predictable (Bertoldi et al., 2007). Here, both square and ...

  14. Postdoctoral stay up to 12 months Postdoctoral stay from 13 up to 24 months

    E-Print Network [OSTI]

    Schüler, Axel

    D in Meteorology, physics or Mathemathics Work and dissertation language and language level English or German (one

  15. Postdoctoral stay up to 12 months Postdoctoral stay from 13 up to 24 months

    E-Print Network [OSTI]

    Schüler, Axel

    Topic Chemistry ­ Hybrid Materials: Inorganic Polymers Number of places: 2 (short) 1 (long) Institution Inorganic polymers, hybrid materials, applications in catalysis, molecular magnets, non-linear optics Synthesis and characterization (NMR, IR, MS, etc.) of inorganic and organometallic compounds as precursors

  16. J O U R N A L O F Volume 270, Number 12, Month 2009

    E-Print Network [OSTI]

    Bermingham, Eldredge

    and Archeology, PO Box 2072, Balboa, Republic of Panama ABSTRACT Numerous gross morphological attributes to their massive radiation and dominance in benthic habitats that began shortly after the appearance of incubation

  17. St. Louis Metro Biodiesel (B20) Transit Bus Evaluation: 12-Month Final Report

    SciTech Connect (OSTI)

    Barnitt, R.; McCormick, R. L.; Lammert, M.

    2008-07-01T23:59:59.000Z

    The St. Louis Metro Bodiesel Transit Bus Evaluation project is being conducted under a Cooperative Research and Development Agreement between NREL and the National Biodiesel Board to evaluate the extended in-use performance of buses operating on B20 fuel. The objective of this research project is to compare B20 and ultra-low sulfur diesel buses in terms of fuel economy, veicles maintenance, engine performance, component wear, and lube oil performance.

  18. St. Louis Metro Biodiesel (B20) Transit Bus Evaluation: 12-Month Final Report

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over Our Instagram Secretary900 Special Report:Spotlight: Bryantis here April 15,SolarSt.

  19. Suspension of Partial Offers of Less Than 12 Months to Long-Term Service

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over Our InstagramStructure ofIndustrialSupportingAlbedofsidentoi SurveyRequests -

  20. FedEx Express Gasoline Hybrid Electric Delivery Truck Evaluation: 12-Month Report

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField8,Dist. CategoryFebruaryFebruary 17, 2015 - SEAB8 An employee

  1. Responses of East Asian Summer Monsoon to Natural and Anthropogenic Forcings in the 17 Latest CMIP5 Models

    SciTech Connect (OSTI)

    Song, Fengfei; Zhou, Tianjun; Qian, Yun

    2014-01-31T23:59:59.000Z

    In this study, we examined the responses of East Asian Summer Monsoon (EASM) to natural (solar variability and volcanic aerosols) and anthropogenic (greenhouse gasses and aerosols) forcings simulated in the 17 latest Coupled Model Intercomparison Program phase 5 (CMIP5) models with 105 realizations. The observed weakening trend of low-level EASM circulation during 1958-2001 is partly reproduced under all-forcing runs. A comparison of separate forcing experiments reveals that the aerosol-forcing plays a primary role in driving the weakened low-level monsoon circulation. The preferential cooling over continental East Asia caused by aerosol affects the monsoon circulation through reducing the land-sea thermal contrast and results in higher sea level pressure over northern China. In the upper-level, both natural-forcing and aerosol-forcing contribute to the observed southward shift of East Asian subtropical jet through changing the meridional temperature gradient.

  2. Neutrinos in the holographic dark energy model: constraints from latest measurements of expansion history and growth of structure

    E-Print Network [OSTI]

    Jing-Fei Zhang; Ming-Ming Zhao; Yun-He Li; Xin Zhang

    2015-02-13T23:59:59.000Z

    The model of holographic dark energy (HDE) with massive neutrinos and/or dark radiation is investigated in detail. The background and perturbation evolutions in the HDE model are calculated. We employ the PPF approach to overcome the gravity instability difficulty (perturbation divergence of dark energy) led by the equation-of-state parameter $w$ evolving across the phantom divide $w=-1$ in the HDE model with $cradiation on the CMB anisotropy power spectrum and the matter power spectrum in the HDE scenario are discussed. Furthermore, we constrain the models of HDE with massive neutrinos and/or dark radiation by using the latest measurements of expansion history and growth of structure, including the Planck CMB temperature data, the baryon acoustic oscillation data, the JLA supernova data, the Hubble constant direct measurement, the cosmic shear data of weak lensing, the Planck CMB lensing data, and the redshift space distortions data. We find that $\\sum m_\

  3. The Histoty of Ventilation and Air Conditioning is CERN Up to Date with the latest Technological Developments?

    E-Print Network [OSTI]

    Kühnl-Kinel, J

    2000-01-01T23:59:59.000Z

    The invention of ventilation cannot be ascribed to a certain date. It started with simple aeration when man brought fire into his abode and continued through different stages including air cooling using ice to finally arrive at the time when ventilation and air conditioning has become an essential part of our life and plays an important role in human evolution. This paper presents the history of ventilation and air conditioning, explains the key constraints over the centuries, and shows its influence on everyday life. Some examples of previous air-conditioning plants are described and different approaches to the way of calculation of ventilation systems discussed. It gives an overview of the Heating, Ventilation and Air Conditioning (HVAC) installations at CERN and points out their particularities. It also compares them with the latest technological developments in the field as well as showing the new trends that are being applied at CERN.

  4. Neutrinos in the holographic dark energy model: constraints from latest measurements of expansion history and growth of structure

    E-Print Network [OSTI]

    Zhang, Jing-Fei; Li, Yun-He; Zhang, Xin

    2015-01-01T23:59:59.000Z

    The model of holographic dark energy (HDE) with massive neutrinos and/or dark radiation is investigated in detail. The background and perturbation evolutions in the HDE model are calculated. We employ the PPF approach to overcome the gravity instability difficulty (perturbation divergence of dark energy) led by the equation-of-state parameter $w$ evolving across the phantom divide $w=-1$ in the HDE model with $cdark radiation on the CMB anisotropy power spectrum and the matter power spectrum in the HDE scenario are discussed. Furthermore, we constrain the models of HDE with massive neutrinos and/or dark radiation by using the latest measurements of expansion history and growth of structure, including the Planck CMB temperature data, the baryon acoustic oscillation data, the JLA supernova data, the Hubble constant direct measurement, the cosmic shear...

  5. Down hole periodic seismic generator

    DOE Patents [OSTI]

    Hardee, Harry C. (Albuquerque, NM); Hills, Richard G. (Las Cruces, NM); Striker, Richard P. (Albuquerque, NM)

    1989-01-01T23:59:59.000Z

    A down hole periodic seismic generator system for transmitting variable frequency, predominantly shear-wave vibration into earth strata surrounding a borehole. The system comprises a unitary housing operably connected to a well head by support and electrical cabling and contains clamping apparatus for selectively clamping the housing to the walls of the borehole. The system further comprises a variable speed pneumatic oscillator and a self-contained pneumatic reservoir for producing a frequency-swept seismic output over a discrete frequency range.

  6. Advanced downhole periodic seismic generator

    DOE Patents [OSTI]

    Hardee, Harry C. (Albuquerque, NM); Hills, Richard G. (Las Cruces, NM); Striker, Richard P. (Albuquerque, NM)

    1991-07-16T23:59:59.000Z

    An advanced downhole periodic seismic generator system for transmitting variable frequency, predominantly shear-wave vibration into earth strata surrounding a borehole. The system comprises a unitary housing operably connected to a well head by support and electrical cabling and contains clamping apparatus for selectively clamping the housing to the walls of the borehole. The system further comprises a variable speed pneumatic oscillator and a self-contained pneumatic reservoir for producing a frequency-swept seismic output over a discrete frequency range.

  7. SBT 2012 Response to ISRP 2012-5 Page 1 Detailed responses to the latest ISRP review comments are provided in the Tribes Response to ISRP

    E-Print Network [OSTI]

    SBT 2012 Response to ISRP 2012-5 Page 1 Detailed responses to the latest ISRP review comments are provided in the Tribes Response to ISRP 2012-5 Review Memorandum (00). The response and referenced-059-00 be subject to the Three-Step Review Process. The 2008 Columbia Basin Fish Accord Agreement with the Tribes

  8. Regular simplex and periodic billiard orbit

    E-Print Network [OSTI]

    Bedaride, Nicolas

    2011-01-01T23:59:59.000Z

    We consider billiard inside regular simplex of $\\mathbb{R}^n$. We show the existence of two periodic trajectories. One of period $n+1$ which passes one time by each face and one of period $2n$ which passes $n$ times through one face and one time through each other face. In both cases we obtain exact coordinates for the periodic points.

  9. Carbon Capture By Solids | Latest News | Chemical & Engineering News http://pubs.acs.org/cen/news/88/i44/8844notw9.html[11/3/2010 3:56:50 PM

    E-Print Network [OSTI]

    Yaghi, Omar M.

    - capture technology. Carbon cleanup in industrial settings today is often carried out by flowing flue gasesCarbon Capture By Solids | Latest News | Chemical & Engineering News http » Latest News » Carbon Capture By Solids Advertisement Advertise Here NOVEMBER 1, 2010 VOLUME 88, NUMBER 44

  10. LATEST RESULTS FROM MINOS.

    SciTech Connect (OSTI)

    JAFFE,D.E.

    2006-10-26T23:59:59.000Z

    Among the goals of the MINOS experiment are the test of the {nu}{sub {mu}} {yields} {nu}{sub {tau}} oscillation and the search for sub-dominant {nu}{sub {mu}} {yields} {nu}{sub {tau}} oscillations. The former proceeds by a {nu}{sub {mu}} ''disappearance'' analysis while the latter would involve the ''appearance'' of {nu}{sub e} interactions in a predominantly {nu}{sub {mu}} beam. The disappearance of muon neutrinos is described by P({nu}{sub {mu}} {yields} {mu}{sub {mu}}) = 1 - sin{sup 2} 2{theta}{sub 23} sin{sup 2} (1.27 {Delta} m{sub 23}{sup 2} L/E) in the two-flavor approximation where {theta}{sub 23} is the angle between the second row and third column of the neutrino mixing matrix, {Delta}m{sub 23}{sup 2} = m{sub 2}{sup 2}-m{sub 3}{sup 2} (eV{sup 2}), L is the neutrino flight distance in km and E is the neutrino energy in GeV. A generic disappearance experiment compares a measured muon neutrino energy spectrum at a fixed baseline to the known energy spectrum of muon neutrino beam to extract the oscillation parameters sin{sup 2} 2{theta} which controls the overall magnitude of the disappearance and {Delta}m{sup 2} which controls the energy dependence.

  11. Latest in tire burning

    SciTech Connect (OSTI)

    Betzig, H.M.

    1996-12-31T23:59:59.000Z

    On September 26, Cris Lombardi and I presented a paper at the ARIPPA. The economic and environmental advantages available to CFB operators through the firing of tire-derived fuel (TDF) are discussed. The bottom line savings to the operation can be significant. It is believed that a regional scrap tire processing facility, capable of making properly-sized fuel, can be supported in Pennsylvania. An effort to develop such an operation is described. The technology for shredding and sizing TDF is well-proven. The proper equipment has been identified and reliable sources of scrap tires have been located. What is needed is to establish a certain minimum annual TDF usage so that fuel user permit modification activity can begin. Data are presented on the production and use of TDF.

  12. Correspondence Latest MMR `dispute'

    E-Print Network [OSTI]

    Gillespie, Rosemary

    's reassurances. We should instead be considering solar energy -- a safe and sustainable option. India receives 5,000 trillion kilowatt-hours of solar energy equivalent every year, more than the total energy the country of the UK General Medical Council last year, but fail to report that it found Wakefield guilty, against

  13. Latest Documents and Notices

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking ofOil & Gas »of Energy Laser-Firing ChemCam Vital

  14. Deglaciation and latest Pleistocene and early Holocene glacier readvances on the Alaska Peninsula: Records of rapid climate change due to transient changes in solar intensity and atmospheric CO sub 2 content

    SciTech Connect (OSTI)

    Pinney, D.S.; Beget, J.E.

    1992-03-01T23:59:59.000Z

    Geologic mapping near Windy Creek, Katmai National Park, identified two sets of glacial deposits postdating late-Wisconsin Iliuk moraines and separated from them by volcaniclastic deposits laid down under ice-free conditions. Radiocarbon dating of organic material incorporated in the younger Katolinat till and in adjacent peat and lake sediments suggests that alpine glaciers on the northern Alaska Peninsula briefly expanded between ca. 8500 and 10,000 years B.P. Stratigraphic relationships and radiocarbon dates suggest an age for the older Ukak drift near the Pleistocene-Holocene boundary between ca. 10,000 and 12,000 years B.P. The authors suggest that rapid deglaciation following deposition of the Iliuk drift occurred ca. 13,000-12,000 years B.P. in response to large increases in global atmospheric greenhouse gas content, including C02. Short-term decreases in these concentrations, as recorded in polar ice cores, may be linked with brief periods of glacier expansion during the latest Pleistocene and early Holocene. A transient episode of low solar intensity may also have occurred during parts of the early Holocene. Rapid environmental changes and glacial fluctuations on the Alaska Peninsula may have been in response to transient changes in the concentration of atmospheric greenhouse gases and solar intensity.

  15. The latest dirt on technology: River germs could run computers -The Boston Globe http://www.boston.com/news/globe/health_science/articles/2007/02/12/the_latest_dirt_on_tec... 1 of 4 2/12/2007 1:39 PM

    E-Print Network [OSTI]

    Lovley, Derek

    / SCIENCE The latest dirt on technology: River germs could run computers Geobacter bacteria with the long, hair-like pili that are capable of conducting electricity. (gemma reguera and dale callaham. Lovley found the Geobacter germ 20 years ago at the bottom of the Potomac River, where it had naturally

  16. A highly specific test for periodicity

    E-Print Network [OSTI]

    Ansmann, Gerrit

    2015-01-01T23:59:59.000Z

    We present a method that allows to distinguish between nearly periodic and strictly periodic time series. To this purpose, we employ a conservative criterion for periodicity, namely that the time series can be interpolated by a periodic function whose local extrema are also present in the time series. Our method is intended for the analysis of time series generated by deterministic dynamical systems, where it can help telling periodic dynamics from chaotic or transient ones. We empirically investigate our method's performance and compare it to an approach based on marker events (or Poincar\\'e sections). We demonstrate that our method is capable of detecting small deviations from periodicity and outperforms the marker-event-based approach in typical situations. Our method requires no adjustment of parameters to the individual time series, yields the period length with a precision that exceeds the sampling rate, and its run time grows asymptotically linear with the length of the time series.

  17. Seismic isolation of two dimensional periodic foundations

    SciTech Connect (OSTI)

    Yan, Y.; Mo, Y. L., E-mail: yilungmo@central.uh.edu [University of Houston, Houston, Texas 77004 (United States); Laskar, A. [Indian Institute of Technology Bombay, Powai, Mumbai (India); Cheng, Z.; Shi, Z. [Beijing Jiaotong University, Beijing (China); Menq, F. [University of Texas, Austin, Texas 78712 (United States); Tang, Y. [Argonne National Laboratory, Argonne, Illinois 60439 (United States)

    2014-07-28T23:59:59.000Z

    Phononic crystal is now used to control acoustic waves. When the crystal goes to a larger scale, it is called periodic structure. The band gaps of the periodic structure can be reduced to range from 0.5?Hz to 50?Hz. Therefore, the periodic structure has potential applications in seismic wave reflection. In civil engineering, the periodic structure can be served as the foundation of upper structure. This type of foundation consisting of periodic structure is called periodic foundation. When the frequency of seismic waves falls into the band gaps of the periodic foundation, the seismic wave can be blocked. Field experiments of a scaled two dimensional (2D) periodic foundation with an upper structure were conducted to verify the band gap effects. Test results showed the 2D periodic foundation can effectively reduce the response of the upper structure for excitations with frequencies within the frequency band gaps. When the experimental and the finite element analysis results are compared, they agree well with each other, indicating that 2D periodic foundation is a feasible way of reducing seismic vibrations.

  18. Optimized Periodic Control of Chaotic Systems

    E-Print Network [OSTI]

    Robert Mettin; Thomas Kurz

    1995-05-09T23:59:59.000Z

    In this work, we demonstrate the open-loop control of chaotic systems by means of optimized periodic signals. The use of such signals enables us to reduce control power significantly in comparison to simple harmonic perturbations. It is found that the stabilized periodic dynamics can be changed by small, specific alterations of the control signal. Thus, low power switching between different periodic states can be achieved without feedback. The robustness of the proposed control method against noise is discussed.

  19. Pricing Conspicuous Consumption Products in Recession Periods ...

    E-Print Network [OSTI]

    2012-09-26T23:59:59.000Z

    cally used in chemical engineering, e.g., to avoid irreversible reactions in ... Our basic problem is based on an economic setting with a recession period followed.

  20. Broadband solar absorption enhancement via periodic

    E-Print Network [OSTI]

    Province, 230009, P. R. China. Solution processed colloidal quantum dot (CQD) solar cells have greatBroadband solar absorption enhancement via periodic nanostructuring of electrodes Michael M. Adachi demonstrate a bottom- illuminated periodic nanostructured CQD solar cell that enhances broadband absorption

  1. Metallurgy Department Progress Report for the Period

    E-Print Network [OSTI]

    Dlcfc^ooWS imsm "-"' Metallurgy Department Progress Report for the Period 1 January to 31 December 1962 (Uw National Laboratory, DK-4000 Roskilde, Denmark July 1963 #12;Risø-R-486 METALLURGY DEPARTMENT PROGRESS REPORT FOR THE PERIOD 1 JANUARY TO 31 DECEMBER 1982 Abstract. The activities of the Metallurgy

  2. Thermoelectricity of Wigner crystal in a periodic potential

    E-Print Network [OSTI]

    Shepelyansky, Dima

    the EPL website to read the latest articles published in cutting-edge fields of research from across of the referees to making all final acceptance decisions Impact Factor ­ The 2010 Impact Factor is 2.753; your Journal Citation Reports IMPACT FACTOR 500 000full text downloads in 2010 OVER 30 DAYS 16 961 average

  3. Large Scale Periodicity in Redshift Distribution

    E-Print Network [OSTI]

    K. Bajan; M. Biernacka; P. Flin; W. Godlowski; V. Pervushin; A. Zorin

    2004-08-30T23:59:59.000Z

    We review the previous studies of galaxies and quasar redshifts discretisation. We present also the investigations of the large scale periodicity, detected by pencil--beam observations, which revealed 128 (1/h) Mpc period, afterwards confirmed with supercluster studies. We present the theoretical possibility of obtaining such a periodicity using a toy-model. We solved the Kepler problem, i.e. the equation of motion of a particle with null energy moving in the uniform, expanding Universe, decribed by FLRW metrics. It is possible to obtain theoretically the separation between large scale structures similar to the observed one.

  4. Variable-Period Undulators For Synchrotron Radiation

    DOE Patents [OSTI]

    Shenoy, Gopal (Naperville, IL); Lewellen, John (Plainfield, IL); Shu, Deming (Darien, IL); Vinokurov, Nikolai (Novosibirsk, RU)

    2005-02-22T23:59:59.000Z

    A new and improved undulator design is provided that enables a variable period length for the production of synchrotron radiation from both medium-energy and high-energy storage rings. The variable period length is achieved using a staggered array of pole pieces made up of high permeability material, permanent magnet material, or an electromagnetic structure. The pole pieces are separated by a variable width space. The sum of the variable width space and the pole width would therefore define the period of the undulator. Features and advantages of the invention include broad photon energy tunability, constant power operation and constant brilliance operation.

  5. DEVELOPMENT OF RASASASTRA IN MEDIEVAL PERIOD*

    E-Print Network [OSTI]

    Harishankar Sharma

    1984-01-01T23:59:59.000Z

    ABSTRACT: The paper deals with the historical development of Rasasastra in Medieval period. Knowledge of Rasa has been in existence from the time immemorial. Exploration of natural resources for the benefit of human beings is the object of this therapy. It is a medical science recognized during vedic periods for the betterment of even Devas. Medieval period can be treated as a golden age for the development of this science. Looking at its aim and objects, methodology and therapeutics, it was recognized as a medical science with an independent philosophical background in 14 th century, by Madhavacharya in his Sarva Darsana Samgraha.

  6. PERIODIC WAVELET TRANSFORMS AND PERIODICITY JOHN J. BENEDETTO AND GOTZ E. PFANDER

    E-Print Network [OSTI]

    Pfander, Götz

    PERIODIC WAVELET TRANSFORMS AND PERIODICITY DETECTION JOHN J. BENEDETTO AND G¨OTZ E. PFANDER Key words. Continuous wavelet transform, epileptic seizure prediction, periodicity detection algorithm, optimal generalized Haar wavelets, wavelet frames on Z. AMS subject classifications. 42C99, 42C40

  7. Single-machine scheduling with periodic and exible periodic maintenance to minimize maximum tardiness

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    periods often appear in industry due to a machine breakdown (stochastic) or preventive maintenance of machine unavailability. However, in some cases (e.g. preventive maintenance), the maintenance of a machineSingle-machine scheduling with periodic and exible periodic maintenance to minimize maximum

  8. Impact of Motor Failures on Payback Periods

    E-Print Network [OSTI]

    Cheek, K. F.; Pillay, P.; Dudley, K. J.

    This paper uses MotorMaster and Vaughen's Complete Price Guide to determine payback periods for different motor failure scenarios. Some scenarios considered are rewinds, reconditions, and replacement of bearings. Prices for these repairs...

  9. Enforcement Policy Statement: Compliance Period for Regional...

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

    Compliance Period for Regional Standards Applicable to Central Air Conditioners April 24, 2014 On June 27, 2011, the U.S. Department of Energy (DOE) published in the Federal...

  10. Analytical homogenization method for periodic composite materials

    E-Print Network [OSTI]

    Chen, Ying

    We present an easy-to-implement technique for determining the effective properties of composite materials with periodic microstructures, as well as the field distributions in them. Our method is based on the transformation ...

  11. The periodicity of the eta Carinae events

    E-Print Network [OSTI]

    A. Damineli; M. F. Corcoran; D. J. Hillier; O. Stahl; R. S. Levenhagen; N. V. Leister; J. H. Groh; M. Teodoro; J. F. Albacete Colombo; F. Gonzalez; J. Arias; H. Levato; M. Grosso; N. Morrell; R. Gamen; G. Wallerstein; V. Niemela

    2007-11-27T23:59:59.000Z

    Extensive spectral observations of eta Carinae over the last cycle, and particularly around the 2003.5 low excitation event, have been obtained. The variability of both narrow and broad lines, when combined with data taken from two earlier cycles, reveal a common and well defined period. We have combined the cycle lengths derived from the many lines in the optical spectrum with those from broad-band X-rays, optical and near-infrared observations, and obtained a period length of 2022.7+-1.3 d. Spectroscopic data collected during the last 60 years yield an average period of 2020+-4 d, consistent with the present day period. The period cannot have changed by more than $\\Delta$P/P=0.0007 since 1948. This confirms the previous claims of a true, stable periodicity, and gives strong support to the binary scenario. We have used the disappearance of the narrow component of HeI 6678 to define the epoch of the Cycle 11 minimum, T_0=JD 2,452,819.8. The next event is predicted to occur on 2009 January 11 (+-2 days). The dates for the start of the minimum in other spectral features and broad-bands is very close to this date, and have well determined time delays from the HeI epoch.

  12. Kepler and the long-period variables

    SciTech Connect (OSTI)

    Hartig, Erich; Lebzelter, Thomas [University of Vienna, Department of Astrophysics, Türkenschanzstrasse 17, A-1180 Vienna (Austria); Cash, Jennifer [Department of Biological and Physical Sciences, South Carolina State University, P.O. Box 7024, Orangeburg, SC 29117 (United States); Hinkle, Kenneth H.; Mighell, Kenneth J. [National Optical Astronomy Observatories, P.O. Box 26732, Tucson, AZ 85726 (United States); Walter, Donald K., E-mail: erich.hartig@univie.ac.at, E-mail: thomas.lebzelter@univie.ac.at, E-mail: jcash@physics.scsu.edu, E-mail: hinkle@noao.edu, E-mail: mighell@noao.edu, E-mail: dkw@physics.scsu.edu [Department of Biological and Physical Sciences, South Carolina State University, P.O. Box 7296, Orangeburg, SC 29117 (United States)

    2014-12-01T23:59:59.000Z

    High-precision Kepler photometry is used to explore the details of asymptotic giant branch (AGB) light curves. Since AGB variability has a typical timescale on the order of a year, we discuss at length the removal of long-term trends and quarterly changes in Kepler data. Photometry for a small sample of nine semi-regular (SR) AGB stars is examined using a 30 minute cadence over a period of 45 months. While undergoing long-period variations of many magnitudes, the light curves are shown to be smooth at the millimagnitude level over much shorter time intervals. No flares or other rapid events were detected on a sub-day timescale. The shortest AGB period detected is on the order of 100 days. All the SR variables in our sample are shown to have multiple modes. This is always the first overtone, typically combined with the fundamental. A second common characteristic of SR variables is shown to be the simultaneous excitation of multiple closely separated periods for the same overtone mode. Approximately half the sample had a much longer variation in the light curve, likely a long secondary period (LSP). The light curves were all well represented by a combination of sinusoids. However, the properties of the sinusoids are time variable, with irregular variations present at low levels. No non-radial pulsations were detected. It is argued that the LSP variation seen in many SR variables is intrinsic to the star and linked to multiple mode pulsation.

  13. Periodic subsystem density-functional theory

    SciTech Connect (OSTI)

    Genova, Alessandro; Pavanello, Michele, E-mail: m.pavanello@rutgers.edu [Department of Chemistry, Rutgers University, Newark, New Jersey 07102 (United States); Ceresoli, Davide [Department of Chemistry, Rutgers University, Newark, New Jersey 07102 (United States); CNR-ISTM, Institute of Molecular Sciences and Technologies, Milano (Italy)

    2014-11-07T23:59:59.000Z

    By partitioning the electron density into subsystem contributions, the Frozen Density Embedding (FDE) formulation of subsystem Density Functional Theory (DFT) has recently emerged as a powerful tool for reducing the computational scaling of Kohn–Sham DFT. To date, however, FDE has been employed to molecular systems only. Periodic systems, such as metals, semiconductors, and other crystalline solids have been outside the applicability of FDE, mostly because of the lack of a periodic FDE implementation. To fill this gap, in this work we aim at extending FDE to treat subsystems of molecular and periodic character. This goal is achieved by a dual approach. On one side, the development of a theoretical framework for periodic subsystem DFT. On the other, the realization of the method into a parallel computer code. We find that periodic FDE is capable of reproducing total electron densities and (to a lesser extent) also interaction energies of molecular systems weakly interacting with metallic surfaces. In the pilot calculations considered, we find that FDE fails in those cases where there is appreciable density overlap between the subsystems. Conversely, we find FDE to be in semiquantitative agreement with Kohn–Sham DFT when the inter-subsystem density overlap is low. We also conclude that to make FDE a suitable method for describing molecular adsorption at surfaces, kinetic energy density functionals that go beyond the GGA level must be employed.

  14. Thermo-quantum diffusion in periodic potentials

    E-Print Network [OSTI]

    R. Tsekov

    2012-01-18T23:59:59.000Z

    Quantum Brownian motion in a periodic cosine potential is studied and a simple estimate of the tunneling effect is obtained in the frames of a quasi-equilibrium semiclassical approach. It is shown that the latter is applicable for heavy particles but electrons cannot be described properly since the quantum effects dominate over the thermal ones. The purely quantum electron diffusion is investigated at zero temperature and demonstrates that electrons do not obey the classical Einstein law of Brownian motion in the field of periodic potentials, since the dispersion of the wave packet increases logarithmically in time.

  15. TFE Verification Program. Semiannual report for the period ending March 31, 1993

    SciTech Connect (OSTI)

    Not Available

    1993-05-01T23:59:59.000Z

    The objective of the semiannual progress report is to summarize the technical results obtained during the latest reporting period. The information presented herein will include evaluated test data, design evaluations, the results of analyses and the significance of results. The program objective is to demonstrate the technology readiness of a TFE (thermionic fuel element) suitable for use as the basic element in a thermionic reactor with electric power output in the 0.5 to 5.0 MW(e) range, and a full-power life of 7 years. The TFE Verification Program builds directly on the technology and data base developed in the 1960s and early 1970s in an AEC/NASA program, and in the SP-100 program conducted in 1983, 1984 and 1985. In the SP-100 program, the attractive features of thermionic power conversion technology were recognized but concern was expressed over the lack of fast reactor irradiation data. The TFE Verification Program addresses this concern.

  16. 5. Wavelengths and periods of field motions

    E-Print Network [OSTI]

    Finlay, Christopher

    . Using a technique based on the Radon transform [2], we determined the amount of power propagating5. Wavelengths and periods of field motions 2D frequency-wavenumber (FK) power spectra were of the large scale magnetic field at the surface of the core. Here we deconstruct such a model (gufm1

  17. clock period selection method slack minimization criteria

    E-Print Network [OSTI]

    California at Irvine, University of

    An optimal clock period selection method based on slack minimization criteria En­Shou Chang Daniel the effect of clock slack on the performance of designs and present an algorithm to find a slack]: allocation, scheduling and binding. The purpose of alloca­ tion is to determine the number of resources

  18. Utility Building Analysis Billing Period: NOV -2013

    E-Print Network [OSTI]

    Ciocan-Fontanine, Ionut

    ELECTRICITY Consumption MUNICIPAL WATER Consumption 8 CCF STEAM Consumption CHILLED WATER Consumption GAS Building Analysis Billing Period: NOV - 2013 032 JACKSON HALL: 150,393 Square Feet ELECTRICITY Consumption,550 Square Feet ELECTRICITY Consumption 114,185 KWHRS MUNICIPAL WATER Consumption 1,423 CCF STEAM Consumption

  19. Quantum transport calculations using periodic boundaryconditions

    SciTech Connect (OSTI)

    Wang, Lin-Wang

    2004-06-15T23:59:59.000Z

    An efficient new method is presented to calculate the quantum transports using periodic boundary conditions. This method allows the use of conventional ground state ab initio programs without big changes. The computational effort is only a few times of a normal groundstate calculations, thus is makes accurate quantum transport calculations for large systems possible.

  20. Student Job Review Questionnaire / Periodic Survey

    E-Print Network [OSTI]

    Amin, S. Massoud

    Student Job Review Questionnaire / Periodic Survey FOR OHR USE ONLY No Change Date Received JRQ Number Notice Number Job Family Title Job Family Number New Pay Rate/Range Certifiable Yes No Effective Date Approved for Notice Letter Date Notice Mailed Job Review Questionnaire (JRQ) (Student Request

  1. Elsevier Journal Specific Embargo Periods 2013 Journal Name Issn Embargo Period

    E-Print Network [OSTI]

    Ayala-Rincón, Mauricio

    Elsevier Journal Specific Embargo Periods 2013 Journal Name Issn Embargo Period ACADEMIC PEDIATRICS 18762859 12 ACADEMIC RADIOLOGY 10766332 12 ACC CARDIOSOURCE REVIEW JOURNAL 15568571 12 ACCIDENT ANALYSIS 18759637 24 AEROSPACE SCIENCE AND TECHNOLOGY 12709638 24 AESTHETIC SURGERY JOURNAL 1090820X 12 AESTHETISCHE

  2. Environment News Service for the latest environmental news, current issues, climate, water, food, forests, species, energy, education. RSS feed. | | | | |Home About News Index Services My Account Events | Search February 2, 2006

    E-Print Network [OSTI]

    Environment News Service for the latest environmental news, current issues, climate, water, food negotiation on the joint implementation agreement of ITER was concluded December 6, 2005, in Jeju, South Korea as in fitter) is based around a hydrogen plasma torus operating at over 100 million degrees Celsius

  3. Surfing may be one of the most complex motor tasks to learn. Knowing this, we will take you on a journey through Europe to discover the latest findings about motor learning and

    E-Print Network [OSTI]

    Cengarle, María Victoria

    CONTENT: Surfing may be one of the most complex motor tasks to learn. Knowing this, we will take you on a journey through Europe to discover the latest findings about motor learning and performance. We will start in The Netherlands where you will learn the fundamental principles of motor learning

  4. Chaotic Transport in Planar Periodic Vortical Flows

    E-Print Network [OSTI]

    Taehoon Ahn; Seunghwan Kim

    1993-09-24T23:59:59.000Z

    We have studied a chaotic transport in a two-dimensional periodic vortical flow under a time-dependent perturbation with period T where the global diffusion occurs along the stochastic web. By using the Melnikov method we construct the separatrix map describing the approximate dynamics near the saddle separatrices. Focusing on the small T, the width of the stochastic layer is calculated analytically by using the residue criterion and the diffusion constant by using the random phase assumption and correlated random walks. The analytical results are in good agreements with the results of two different types of numerical simulations by integrations of the Hamilton's equation of motion and by iterations of the separatrix map, which establishes the validity of the use of the separatrix map.

  5. Periodic-Orbit Theory of Level Correlations

    E-Print Network [OSTI]

    Stefan Heusler; Sebastian Müller; Alexander Altland; Petr Braun; Fritz Haake

    2006-10-20T23:59:59.000Z

    We present a semiclassical explanation of the so-called Bohigas-Giannoni-Schmit conjecture which asserts universality of spectral fluctuations in chaotic dynamics. We work with a generating function whose semiclassical limit is determined by quadruplets of sets of periodic orbits. The asymptotic expansions of both the non-oscillatory and the oscillatory part of the universal spectral correlator are obtained. Borel summation of the series reproduces the exact correlator of random-matrix theory.

  6. Policy Flash 2013-41 Contracts Periods of Performance Exceeding...

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

    41 Contracts Periods of Performance Exceeding 5 Years Policy Flash 2013-41 Contracts Periods of Performance Exceeding 5 Years Attached is Policy Flash 2013-41 Contracts Periods of...

  7. SEXUAL SIGNALING IN PERIODICAL CICADAS, MAGICICADA SPP. (HEMIPTERA: CICADIDAE)

    E-Print Network [OSTI]

    Simon, Chris

    SEXUAL SIGNALING IN PERIODICAL CICADAS, MAGICICADA SPP. (HEMIPTERA: CICADIDAE) by JOHN R. COOLEY1 behavior of periodical cicadas (Insecta: Hemiptera: Magicicada spp.) has been considered enigmatic because

  8. Detection of periodic signatures in the solar power spectrum. On the track of l=1 gravity modes

    E-Print Network [OSTI]

    R. A. Garcia; S. Turck-Chieze; S. J. Jimenez-Reyes; J. Ballot; P. L. Palle; A. Eff-Darwich; S. Mathur; J. Provost

    2006-11-27T23:59:59.000Z

    In the present work we show robust indications of the existence of g modes in the Sun using 10 years of GOLF data. The present analysis is based on the exploitation of the collective properties of the predicted low-frequency (25 to 140 microHz) g modes: their asymptotic nature, which implies a quasi equidistant separation of their periods for a given angular degree (l). The Power Spectrum (PS) of the Power Spectrum Density (PSD), reveals a significant structure indicating the presence of features (peaks) in the PSD with near equidistant periods corresponding to l=1 modes in the range n=-4 to n=-26. The study of its statistical significance of this feature was fully undertaken and complemented with Monte Carlo simulations. This structure has a confidence level better than 99.86% not to be due to pure noise. Furthermore, a detailed study of this structure suggests that the gravity modes have a much more complex structure than the one initially expected (line-widths, magnetic splittings...). Compared to the latest solar models, the obtained results tend to favor a solar core rotating significantly faster than the rest of the radiative zone. In the framework of the Phoebus group, we have also applied the same methodology to other helioseismology instruments on board SoHO and ground based networks.

  9. Down-hole periodic seismic generator

    DOE Patents [OSTI]

    Hardee, H.C.; Hills, R.G.; Striker, R.P.

    1982-10-28T23:59:59.000Z

    A down hole periodic seismic generator system is disclosed for transmitting variable frequency, predominantly shear-wave vibration into earth strata surrounding a borehole. The system comprises a unitary housing operably connected to a well head by support and electrical cabling and contains clamping apparatus for selectively clamping the housing to the walls of the borehole. The system further comprises a variable speed pneumatic oscillator and a self-contained pneumatic reservoir for producing a frequency-swept seismic output over a discrete frequency range.

  10. Almost Periodic Measures and Meyer Sets

    E-Print Network [OSTI]

    Nicolae Strungaru

    2015-01-05T23:59:59.000Z

    In the first part, we construct a cut and project scheme from a family $\\{P_\\varepsilon\\}$ of sets verifying four conditions. We use this construction to characterize weighted Dirac combs defined by cut and project schemes and by continuous functions on the internal groups in terms of almost periodicity. We are also able to characterise those weighted Dirac combs for which the internal function is compactly supported. Lastly, using the same cut and project construction for $\\varepsilon$-dual sets, we are able to characterise Meyer sets in $\\sigma$-compact locally compact Abelian groups.

  11. Property:TimePeriod | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag Jump to:ID8/OrganizationTechProbSolutions Jump to: navigation,TimePeriod Jump to:

  12. Latest Jet Results from Tevatron

    E-Print Network [OSTI]

    Andrea Messina

    2006-05-16T23:59:59.000Z

    This contribution reports preliminary jet results in ppbar collisions at sqrt(s)=1.96 TeV from the CDF and D0 experiments. The jet inclusive cross section, measured using both the Midpoint and the K_T jet clustering algorithm, is compared to next-to-leading order QCD prediction in different rapidity regions. The b-jet inclusive cross section measured exploiting the long lifetime and large mass of B hadrons is presented and compared to QCD prediction. A complementary measurement, using the large branching fraction of B hadrons into muons, is also described. The measurement of two-particle momentum correlation in jets is presented and compared to predictions.

  13. Latest ARPA-E News

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

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

  14. Latest News | 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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122Commercial602 1,39732on ArmedManufacturingJune 17, 2015LMLand andShadeofNews »

  15. LATEST_m_93.DOC

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes |Is Your Home as ReadyAppointedKyungmin2010SciencesLANS16thTHE3 AM

  16. Latest News | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking ofOil & Gas »of Energy Laser-Firing ChemCam VitalJune23,About Us »

  17. Latest News | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking ofOil & Gas »of Energy Laser-Firing ChemCam VitalJune23,About Us

  18. Periodic Cluster Mutations and Related Integrable Maps

    E-Print Network [OSTI]

    Allan P Fordy

    2014-03-31T23:59:59.000Z

    One of the remarkable properties of cluster algebras is that any cluster, obtained from a sequence of mutations from an initial cluster, can be written as a Laurent polynomial in the initial cluster (known as the "Laurent phenomenon"). There are many nonlinear recurrences which exhibit the Laurent phenomenon and thus unexpectedly generate integer sequences. The mutation of a typical quiver will not generate a recurrence, but rather an erratic sequence of exchange relations. How do we "design" a quiver which gives rise to a given recurrence? A key role is played by the concept of "periodic cluster mutation", introduced in 2009. Each recurrence corresponds to a finite dimensional map. In the context of cluster mutations, these are called "cluster maps". What properties do cluster maps have? Are they integrable in some standard sense? In this review I describe how integrable maps arise in the context of cluster mutations. I first explain the concept of "periodic cluster mutation", giving some classification results. I then give a review of what is meant by an integrable map and apply this to cluster maps. Two classes of integrable maps are related to interesting monodromy problems, which generate interesting Poisson algebras of functions, used to prove complete integrability and a linearisation. A connections to the Hirota-Miwa equation is explained.

  19. Equilibrium quasi-periodic configurations with resonant frequencies in quasi-periodic media I: perturbative expansions

    E-Print Network [OSTI]

    Xifeng Su; Lei Zhang; Rafael de la Llave

    2015-03-11T23:59:59.000Z

    We consider 1-D quasi-periodic Frenkel-Kontorova models (describing, for example, deposition of materials in a quasi-periodic substratum). We study the existence of equilibria whose frequency (i.e. the inverse of the density of deposited material) is resonant with the frequencies of the substratum. We study perturbation theory for small potential. We show that there are perturbative expansions to all orders for the quasi-periodic equilibria with resonant frequencies. Under very general conditions, we show that there are at least two such perturbative expansions for equilibria for small values of the parameter. We also develop a dynamical interpretation of the equilibria in these quasi-periodic media. We show that the dynamical system has very unusual properties. Using these, we obtain results on the Lyapunov exponents of the resonant quasi-periodic solutions. In a companion paper, we develop a rather unusual KAM theory (requiring new considerations) which establishes that the perturbative expansions converge when the perturbing potentials satisfy a one-dimensional constraint.

  20. Detrended cross-correlation analysis for non-stationary time series with periodic trends

    E-Print Network [OSTI]

    Podobnik, Boris

    Compilation Index Visit the EPL website to read the latest articles published in cutting-edge fields all final acceptance decisions 1 Impact Factor ­ The 2009 Impact Factor increased by 31% to 2

  1. Quasi-Periodic Oscillations from Magnetorotational Turbulence

    E-Print Network [OSTI]

    Phil Arras; Omer Blaes; Neal J. Turner

    2006-02-13T23:59:59.000Z

    Quasi-periodic oscillations (QPOs) in the X-ray lightcurves of accreting neutron star and black hole binaries have been widely interpreted as being due to standing wave modes in accretion disks. These disks are thought to be highly turbulent due to the magnetorotational instability (MRI). We study wave excitation by MRI turbulence in the shearing box geometry. We demonstrate that axisymmetric sound waves and radial epicyclic motions driven by MRI turbulence give rise to narrow, distinct peaks in the temporal power spectrum. Inertial waves, on the other hand, do not give rise to distinct peaks which rise significantly above the continuum noise spectrum set by MRI turbulence, even when the fluid motions are projected onto the eigenfunctions of the modes. This is a serious problem for QPO models based on inertial waves.

  2. Periodic table for topological insulators and superconductors

    E-Print Network [OSTI]

    Alexei Kitaev

    2009-01-20T23:59:59.000Z

    Gapped phases of noninteracting fermions, with and without charge conservation and time-reversal symmetry, are classified using Bott periodicity. The symmetry and spatial dimension determines a general universality class, which corresponds to one of the 2 types of complex and 8 types of real Clifford algebras. The phases within a given class are further characterized by a topological invariant, an element of some Abelian group that can be 0, Z, or Z_2. The interface between two infinite phases with different topological numbers must carry some gapless mode. Topological properties of finite systems are described in terms of K-homology. This classification is robust with respect to disorder, provided electron states near the Fermi energy are absent or localized. In some cases (e.g., integer quantum Hall systems) the K-theoretic classification is stable to interactions, but a counterexample is also given.

  3. Periodic Arrays of M2-Branes

    E-Print Network [OSTI]

    Imtak Jeon; Neil Lambert; Paul Richmond

    2012-11-29T23:59:59.000Z

    We consider periodic arrays of M2-branes in the ABJM model in the spirit of a circle compactification to D2-branes in type IIA string theory. The result is a curious formulation of three-dimensional maximally supersymmetric Yang-Mills theory in terms of fermions, seven transverse scalars, a non-dynamical gauge field and an additional scalar `dual gluon'. Upon further T-duality on a transverse torus we obtain a non-manifest-Lorentz-invariant description of five-dimensional maximally supersymmetric Yang-Mills. Here the additional scalar field can be thought of as the components of a two-form along the torus. This action can be viewed as an M-theory description of M5-branes on ${\\mathbb T}^3$.

  4. Fluorescence in nonlocal dissipative periodic structures

    E-Print Network [OSTI]

    Francesco Intravaia; Kurt Busch

    2015-02-24T23:59:59.000Z

    We present an approach for the description of fluorescence from optically active material embedded in layered periodic structures. Based on an exact electromagnetic Green's tensor analysis, we determine the radiative properties of emitters such as the local photonic density of states, Lamb shifts, line widths etc. for a finite or infinite sequence of thin alternating plasmonic and dielectric layers. In the effective medium limit, these systems may exhibit hyperbolic dispersion relations so that the large wave-vector characteristics of all constituents and processes become relevant. These include the finite thickness of the layers, the nonlocal properties of the constituent metals, and local-field corrections associated with an emitter's dielectric environment. In particular, we show that the corresponding effects are non-additive and lead to considerable modifications of an emitter's luminescence properties.

  5. Steady periodic gravity waves with surface tension

    E-Print Network [OSTI]

    Samuel Walsh

    2009-11-06T23:59:59.000Z

    In this paper we consider two-dimensional, stratified, steady water waves propagating over an impermeable flat bed and with a free surface. The motion is assumed to be driven by capillarity (that is, surface tension) on the surface and a gravitational force acting on the body of the fluid. We prove the existence of global continua of classical solutions that are periodic and traveling. This is accomplished by first constructing a 1-parameter family of laminar flow solutions, $\\mathcal{T}$, then applying bifurcation theory methods to obtain local curves of small amplitude solutions branching from $\\mathcal{T}$ at an eigenvalue of the linearized problem. Each solution curve is then continued globally by means of a degree theoretic theorem in the spirit of Rabinowitz. Finally, we complement the degree theoretic picture by proving an alternate global bifurcation theorem via the analytic continuation method of Dancer.

  6. 1/27/2014 Microscopic Wind Turbines Offer Renewable Energyon the Go http://oilprice.com/Latest-Energy-News/World-News/Microscopic-Wind-Turbines-Offer-Renewable-Energy-on-the-Go.html 1/3

    E-Print Network [OSTI]

    Chiao, Jung-Chih

    in on the latest trends and investment opportunities in the energy space. A A A SearchSearch OilPrice.com 0 Tweet moveable mechanical structures that can be self-assembled from two-dimensional metal Commodity Prices PRICE CHG CHG% Crude Oil 95.69 -0.03 -0.03% Ethanol 1.719s -0.011 -0.64% Natural Gas 4.754 +0.080 +1

  7. Periodic relativity: basic framework of the theory

    E-Print Network [OSTI]

    Vikram H. Zaveri

    2014-11-25T23:59:59.000Z

    An alternative gravity theory is proposed which does not rely on Riemannian geometry and geodesic trajectories. The theory named periodic relativity (PR) does not use the weak field approximation and allows every two body system to deviate differently from the flat Minkowski metric. PR differs from general relativity (GR) in predictions of the proper time intervals of distant objects. PR proposes a definite connection between the proper time interval of an object and gravitational frequency shift of its constituent particles as the object travels through the gravitational field. PR is based on the dynamic weak equivalence principle which equates the gravitational mass with the relativistic mass. PR provides very accurate solutions for the Pioneer anomaly and the rotation curves of galaxies outside the framework of general relativity. PR satisfies Einstein's field equations with respect to the three major GR tests within the solar system and with respect to the derivation of Friedmann equation in cosmology. This article defines the underlying framework of the theory.

  8. CEQ Extends Comment Period on Revised Draft Guidance on Consideration...

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

    comment period on its revised draft guidance on consideration of greenhouse gas (GHG) emissions and the effects of climate change in NEPA reviews. The comment period now ends on...

  9. Transition Period High Water Marks - May 2009.indd

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

    the Contract High Water Mark (CHWM) contracts in May 2009, BPA is publishing initial Transition Period High Water Marks (THWMs) and Above-Rate-Period High Water Mark (Above-RHWM)...

  10. Orbital stability of periodic waves for the nonlinear Schrodinger equation

    E-Print Network [OSTI]

    Gallay, Thierry

    Orbital stability of periodic waves for the nonlinear SchrË?odinger equation Thierry Gallay Institut: Thierry Gallay, Thierry.Gallay@ujf­grenoble.fr Keywords: Nonlinear SchrË?odinger equation, periodic waves

  11. Orbital stability of periodic waves for the nonlinear Schrodinger equation

    E-Print Network [OSTI]

    Orbital stability of periodic waves for the nonlinear Schr¨odinger equation Thierry Gallay Institut: Thierry Gallay, Thierry.Gallay@ujf-grenoble.fr Keywords: Nonlinear Schr¨odinger equation, periodic waves

  12. Orbital stability of periodic waves for the nonlinear Schrodinger equation

    E-Print Network [OSTI]

    Boyer, Edmond

    Orbital stability of periodic waves for the nonlinear Schr¨odinger equation Thierry Gallay Institut: Thierry Gallay, Thierry.Gallay@ujf-grenoble.fr Keywords: Nonlinear Schr¨odinger equation, periodic waves

  13. Focusing-to-defocusing crossover in nonlinear periodic structures

    E-Print Network [OSTI]

    Focusing-to-defocusing crossover in nonlinear periodic structures Francis H. Bennet,* Inés A. Amuli

  14. Quarterly Construction Status Report Period Ending: June 30, 2013

    E-Print Network [OSTI]

    Alpay, S. Pamir

    Quarterly Construction Status Report Period Ending: June 30, 2013 Storrs and Regional Campuses University of Connecticut Health Center Quarterly Construction Status Report for Period Ending: June 30, 2013 #12;Quarterly Construction Status Report Period Ending: June 30, 2013 Project Number Project Index

  15. Steady periodic waves bifurcating for fixed-depth rotational flows

    E-Print Network [OSTI]

    consider steady periodic water waves for rotational flows with a specified fixed-depth over a flat bed. We the existence of steady periodic water waves for rotational flows with a specified fixed depth over a flat bedSteady periodic waves bifurcating for fixed-depth rotational flows David Henry School

  16. Period of K system generator of pseudorandom numbers

    E-Print Network [OSTI]

    Akopov, N Z; Floratos, Emmanuel G; Savvidy, G K

    1996-01-01T23:59:59.000Z

    We analyze the structure of the periodic trajectories of the matrix generator of pseudorandom numbers which has been proposed earlier. The structure of the periodic trajectories becomes more transparent when the rational sublattice coincides with the Galois field GF[p]. We are able to compute the period of the trajectories as a function of p and the dimension of the matrix d.

  17. Period of K System Generator of Pseudorandom Numbers

    E-Print Network [OSTI]

    N. Z. Akopov; G. G. Athanasiu; E. G. Floratos; G. K. Savvidy

    1996-02-09T23:59:59.000Z

    We analyze the structure of the periodic trajectories of the matrix generator of pseudorandom numbers which has been proposed earlier. The structure of the periodic trajectories becomes more transparent when the rational sublattice coincides with the Galois field $GF[p]$. We are able to compute the period of the trajectories as a function of $p$ and the dimension of the matrix $d$.

  18. Periodically poled silicon Nick K. Hon,a

    E-Print Network [OSTI]

    Jalali. Bahram

    as quasi-phase matching. Periodically poled silicon PePSi adds the periodic poling capability to silicon to be harnessed for devices based on second-order nonlinear effects. As an example of the utility of the PePSi is in effect, periodically poled silicon PePSi , a new technology for efficient second-order nonlinear

  19. Jitter-Approximation Tradeoff for Periodic Scheduling Zvika Brakerski

    E-Print Network [OSTI]

    Patt-Shamir, Boaz

    Jitter-Approximation Tradeoff for Periodic Scheduling Zvika Brakerski Dept. of Electrical the average period of a job in the schedule is blown up w.r.t. its requested period, and the jitter ratio with low jitter ratio allow the mobile devices to save power by hav- ing their receivers switched off

  20. Quarterly Construction Status Report Period Ending: March 31, 2014

    E-Print Network [OSTI]

    Alpay, S. Pamir

    Quarterly Construction Status Report Period Ending: March 31, 2014 Storrs and Regional Campuses University of Connecticut Health Center Quarterly Construction Status Report for Period Ending: March 31, 2014 #12;Quarterly Construction Status Report Period Ending: March 31, 2014 Project Number Project

  1. Period-luminosity and period-luminosity-colour relations for Mira variables at maximum light

    E-Print Network [OSTI]

    S. M. Kanbur; M. A. Hendry; D. Clarke

    1997-04-14T23:59:59.000Z

    In this paper we confirm the existence of period-luminosity (PL) and period-luminosity-colour (PLC) relations at maximum light for O and C Mira variables in the LMC. We demonstrate that in the J and H bands the maximum light PL relations have a significantly smaller dispersion than their counterparts at mean light, while the K band and bolometric PL relations have a dispersion comparable to that at mean light. In the J, H and K bands the fitted PL relations for the O Miras are found to have smaller dispersion than those for the C Miras, at both mean and maximum light, while the converse is true for the relations based on bolometric magnitudes. The inclusion of a non-zero log period term is found to be highly significant in all cases except that of the C Miras in the J band, for which the data are found to be consistent with having constant absolute magnitude. This suggests the possibility of employing C Miras as standard candles. We suggest both a theoretical justification for the existence of Mira PL relations at maximum light and a possible explanation of why these relations should have a smaller dispersion than at mean light. The existence of such maximum light relations offers the possibility of extending the range and improving the accuracy of the Mira distance scale to Galactic globular clusters and to other galaxies.

  2. Periodic eigendecomposition and its application to Kuramoto-Sivashinsky system

    E-Print Network [OSTI]

    Xiong Ding; Predrag Cvitanovi?

    2014-06-18T23:59:59.000Z

    Periodic eigendecomposition algorithm for calculating eigenvectors of a periodic product of a sequence of matrices, an extension of the periodic Schur decomposition, is formulated and compared with the recently proposed covariant vectors algorithms. In contrast to those, periodic eigendecomposition requires no power iteration and is capable of determining not only the real eigenvectors, but also the complex eigenvector pairs. Its effectiveness, and in particular its ability to resolve eigenvalues whose magnitude differs by hundreds of orders, is demonstrated by applying the algorithm to computation of the full linear stability spectrum of periodic solutions of Kuramoto-Sivashinsky system.

  3. Convection, granulation and period jitter in classical Cepheids

    E-Print Network [OSTI]

    Neilson, Hilding R

    2014-01-01T23:59:59.000Z

    Analyses of recent observations of the sole classical Cepheid in the Kepler field, V1154 Cygni, found random changes of about 30 minutes in the pulsation period. These period changes challenge standard theories of pulsation and evolution because the period change is non-secular, and explaining this period jitter is necessary for understanding stellar evolution and the role of Cepheids as precise standard candles. We suggest that convection and convective hot spots can explain the observed period jitter. Convective hot spots alter the timing of flux maximum and minimum in the Cepheid light curve, hence change the measured pulsation period. We present a model of random hot spots that generate a localized flux excess that perturbs the Cepheid light curve and consequently the pulsation period which is consistent with the observed jitter. This result demonstrates how important understanding convection is for modeling Cepheid stellar structure and evolution, how convection determines the red edge of the instability...

  4. Green's function analysis of periodic structures in computational electromagnetics

    E-Print Network [OSTI]

    Van Orden, Derek

    2011-01-01T23:59:59.000Z

    the two-dimensional periodic Green's function," IEEE Trans.evaluation of the Green's function for the Helmholtzrepresentations of certain Green's functions," J. Comp.

  5. EIS-0250: Notice of Public Comment Period Extension and Additional...

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

    Period Extension and Additional Public Meeting Geologic Repository for the Disposal of Spent Nuclear Fuel and High-Level Radioactive Waste at Yucca Mountain, Nye County, NV...

  6. Uranium Leasing Program Draft PEIS Public Comment Period Extended...

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

    Uranium Leasing Program Draft PEIS Public Comment Period Extended to May 31, 2013 Draft ULPEIS comment extension community notification041813 (3).pdf More Documents & Publications...

  7. Multilevel interference lithography--fabricating sub-wavelength periodic nanostructures

    E-Print Network [OSTI]

    Chang, Chih-Hao, 1980-

    2008-01-01T23:59:59.000Z

    Periodic nanostructures have many exciting applications, including high-energy spectroscopy, patterned magnetic media, photonic crystals, and templates for self-assembly. Interference lithography (IL) is an attractive ...

  8. CV evolution: AM Her binaries and the period gap

    E-Print Network [OSTI]

    R. F. Webbink; D. T. Wickramasinghe

    2002-04-19T23:59:59.000Z

    AM Her variables -- synchronised magnetic cataclysmic variables (CVs) -- exhibit a different period distribution from other CVs across the period gap. We show that non-AM Her systems may infiltrate the longer-period end of the period gap if they are metal-deficient, but that the position and width of the gap in orbital period is otherwise insensitive to other binary parameters (excepting the normalisation of the braking rate). In AM Her binaries, magnetic braking is reduced as the wind from the secondary star may be trapped within the magnetosphere of the white dwarf primary. This reduced braking fills the period gap from its short-period end as the dipole magnetic moment of the white dwarf increases. The consistency of these models with the observed distribution of CVs, both AM Her and non-AM Her type, provides compelling evidence supporting magnetic braking as the agent of angular momentum loss among long-period CVs, and its disruption as the explanation of the 2 - 3 hour period gap among nonmagnetic CVs.

  9. Extension of Comment Period on the Draft Integrated, Interagency...

    Energy Savers [EERE]

    Extension of Comment Period on the Draft Integrated, Interagency Pre-Application (IIP) Process for Electric Transmission Projects Requiring Federal Authorizations Extension of...

  10. Phase-locked rhythms in periodically stimulated heart cell aggregates

    E-Print Network [OSTI]

    Glass, Leon

    Phase-locked rhythms in periodically stimulated heart cell aggregates MICHAEL R. GUEVARA, ALVIN GUEVARA,MICHAEL R., ALVIN SHRIER,ANDLEONGLASS. Phase-locked rhythms in periodically stimulated heart cell, THE SINOATRIAL NODE acts as the pace- maker of the heart. As a result of the orderly spread of excitation

  11. Efficient Mining of Partial Periodic Patterns in Time Series Database

    E-Print Network [OSTI]

    Dong, Guozhu

    Efficient Mining of Partial Periodic Patterns in Time Series Database In ICDE 99 Jiawei Han \\Lambda peri­ odic patterns in time­series databases, is an interesting data mining problem. Previous studies several algorithms for efficient mining of par­ tial periodic patterns, by exploring some interesting

  12. TIME-PERIODIC SOUND WAVE PROPAGATION COMPRESSIBLE EULER EQUATIONS

    E-Print Network [OSTI]

    A PARADIGM FOR TIME-PERIODIC SOUND WAVE PROPAGATION IN THE COMPRESSIBLE EULER EQUATIONS BLAKE consistent with time-periodic sound wave propagation in the 3 Ã? 3 nonlinear compressible Euler equations description of shock-free waves that propagate through an oscillating entropy field without breaking or dis

  13. Quantum coherent switch utilizing commensurate nanoelectrode and charge density periodicities

    DOE Patents [OSTI]

    Harrison; Neil (Santa Fe, NM), Singleton; John (Los Alamos, NM), Migliori; Albert (Santa Fe, NM)

    2008-08-05T23:59:59.000Z

    A quantum coherent switch having a substrate formed from a density wave (DW) material capable of having a periodic electron density modulation or spin density modulation, a dielectric layer formed onto a surface of the substrate that is orthogonal to an intrinsic wave vector of the DW material; and structure for applying an external spatially periodic electrostatic potential over the dielectric layer.

  14. Periodic Solutions of a Nonlinear Evolution Problem from Heterogeneous Catalysis

    E-Print Network [OSTI]

    Bothe, Dieter

    Periodic Solutions of a Nonlinear Evolution Problem from Heterogeneous Catalysis Dieter Bothe for heterogeneous catalysis in a stirred multi-phase chemical reactor. Since the appearance of T-periodic feeds for this evolution problem are provided and applied to the class of reaction-diffusion systems mentioned above. AMS

  15. Dual periodicities in the rotational modulation of Saturn narrowband emissions

    E-Print Network [OSTI]

    Gurnett, Donald A.

    Dual periodicities in the rotational modulation of Saturn narrowband emissions S.Y. Ye,1 D. A emissions is examined, restricting the spacecraft location to either the northern or the southern hemisphere of Saturn. It is found that in both hemispheres, the modulation period of 5 kHz narrowband emissions has two

  16. Analysis of Periodic GrowthDisturbance Models Timothy C. Reluga

    E-Print Network [OSTI]

    Reluga, Tim

    model for a fluctuating population. Changes in the disturbance frequency are shown to generate a period-bubbling bifurcation structure and population dynamics that are most variable at intermediate disturbance frequenciesAnalysis of Periodic Growth­Disturbance Models Timothy C. Reluga treluga

  17. On the Mass-Period Correlation of the Extrasolar Planets

    E-Print Network [OSTI]

    Shay Zucker; Tsevi Mazeh

    2002-02-22T23:59:59.000Z

    We report on a possible correlation between the masses and periods of the extrasolar planets, manifested as a paucity of massive planets with short orbital periods. Monte-Carlo simulations show the effect is significant, and is not solely due to an observational selection effect. We also show the effect is stronger than the one already implied by published models that assumed independent power-law distributions for the masses and periods of the extrasolar planets. Planets found in binary stellar systems may have an opposite correlation. The difference is highly significant despite the small number of planets in binary systems. We discuss the paucity of short-period massive planets in terms of some theories for the close-in giant planets. Almost all models can account for the deficit of massive planets with short periods, in particular the model that assumes migration driven by a planet-disk interaction, if the planet masses do not scale with their disk masses.

  18. Planar resonant periodic orbits in Kuiper belt dynamics

    E-Print Network [OSTI]

    George Voyatzis; Thomas Kotoulas

    2005-02-28T23:59:59.000Z

    In the framework of the planar restricted three body problem we study a considerable number of resonances associated to the Kuiper Belt dynamics and located between 30 and 48 a.u. Our study is based on the computation of resonant periodic orbits and their stability. Stable periodic orbits are surrounded by regular librations in phase space and in such domains the capture of trans-Neptunian object is possible. All the periodic orbits found are symmetric and there is evidence for the existence of asymmetric ones only in few cases. In the present work first, second and third order resonances are under consideration. In the planar circular case we found that most of the periodic orbits are stable. The families of periodic orbits are temporarily interrupted by collisions but they continue up to relatively large values of the Jacobi constant and highly eccentric regular motion exists for all cases. In the elliptic problem and for a particular eccentricity value of the primary bodies the periodic orbits are isolated. The corresponding families, where they belong to, bifurcate from specific periodic orbits of the circular problem and seem to continue up to the rectilinear problem. Both stable and unstable orbits are obtained for each case. In the elliptic problem the unstable orbits found are associated with narrow chaotic domains in phase space. The evolution of the orbits, which are located in such chaotic domains, seems to be practically regular and bounded for long time intervals.

  19. Development of Seismic Isolation Systems Using Periodic Materials

    SciTech Connect (OSTI)

    Mo, Yi-Lung; Stokoe, Kenneth H.; Perkins, Judy; Tang, Yu

    2014-12-10T23:59:59.000Z

    Advanced fast nuclear power plants and small modular fast reactors are composed of thin-walled structures such as pipes; as a result, they do not have sufficient inherent strength to resist seismic loads. Seismic isolation, therefore, is an effective solution for mitigating earthquake hazards for these types of structures. Base isolation, on which numerous studies have been conducted, is a well-defined structure protection system against earthquakes. In conventional isolators, such as high-damping rubber bearings, lead-rubber bearings, and friction pendulum bearings, large relative displacements occur between upper structures and foundations. Only isolation in a horizontal direction is provided; these features are not desirable for the piping systems. The concept of periodic materials, based on the theory of solid-state physics, can be applied to earthquake engineering. The periodic material is a material that possesses distinct characteristics that prevent waves with certain frequencies from being transmitted through it; therefore, this material can be used in structural foundations to block unwanted seismic waves with certain frequencies. The frequency band of periodic material that can filter out waves is called the band gap, and the structural foundation made of periodic material is referred to as the periodic foundation. The design of a nuclear power plant, therefore, can be unified around the desirable feature of a periodic foundation, while the continuous maintenance of the structure is not needed. In this research project, three different types of periodic foundations were studied: one-dimensional, two-dimensional, and three-dimensional. The basic theories of periodic foundations are introduced first to find the band gaps; then the finite element methods are used, to perform parametric analysis, and obtain attenuation zones; finally, experimental programs are conducted, and the test data are analyzed to verify the theory. This procedure shows that the periodic foundation is a promising and effective way to mitigate structural damage caused by earthquake excitation.

  20. ancient glacial periods: Topics by E-print Network

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

    15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 MECHANISMS OF ABRUPT CLIMATE CHANGE OF THE LAST GLACIAL PERIOD Geosciences Websites Summary: MECHANISMS OF...

  1. Wave propagation in periodic lattices with defects of smaller dimension

    E-Print Network [OSTI]

    A. A. Kutsenko

    2013-05-20T23:59:59.000Z

    The procedure of evaluating of the spectrum for discrete periodic operators perturbed by operators of smaller dimensions is obtained. This result allows to obtain propagative, guided, localised spectra for different kind of physical operators on graphs with defects.

  2. Period tripling accumulation point for complexified Henon map

    E-Print Network [OSTI]

    O. B. Isaeva; S. P. Kuznetsov

    2005-09-06T23:59:59.000Z

    Accumulation point of period-tripling bifurcations for complexified Henon map is found. Universal scaling properties of parameter space and Fourier spectrum intrinsic to this critical point is demonstrated.

  3. Competitive Multi-period Pricing with Fixed Inventories

    E-Print Network [OSTI]

    Perakis, Georgia

    This paper studies the problem of multi-period pricing for perishable products in a competitive (oligopolistic) market. We study non cooperative Nash equilibrium policies for sellers. At the beginning of the time horizon, ...

  4. activities reporting period: Topics by E-print Network

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

    information about Weber, Rodney 19 Type II and IV radio bursts in the active period October-November 2003 CERN Preprints Summary: In this report we present the Type II and IV...

  5. Optimization models for improving periodic maintenance schedules by utilizing opportunities

    E-Print Network [OSTI]

    Patriksson, Michael

    to this as preventive maintenance activities at an oppor- tunity. The original opportunistic replacement problemOptimization models for improving periodic maintenance schedules by utilizing opportunities Torgny of Technology Abstract We present mathematical models for finding optimal opportunistic maintenance schedules

  6. activity rules periodic: Topics by E-print Network

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

    WITH PERIODIC ACTIVE THERMAL IMAGING Physics Websites Summary: methods where the thermal evolution of a scene is recorded while some external time varying energyIMPACT OF A LOSSY...

  7. Fourier Analysis and Autocorrelation Function Applied to Periodical Nanostructures

    E-Print Network [OSTI]

    Rockett, Angus

    Fourier Analysis and Autocorrelation Function Applied to Periodical Nanostructures E. Cruz Microscopy (AFM) Image Fast Fourier Transformation Autocorrelation Function(AC) Angular Distribution] Fourier Analysis: analytical and geometrical aspects, Bray William O ed. New York: Marcel Dekker, 1994

  8. Total Estimated Contract Cost: Performance Period Total Fee Paid

    Office of Environmental Management (EM)

    FY2011 FY2012 Fee Information Minimum Fee Maximum Fee September 2014 Contract Number: Cost Plus Incentive Fee Contractor: 3,260,603,765 Contract Period: EM Contractor Fee Site:...

  9. Total Estimated Contract Cost: Performance Period Total Fee Paid

    Office of Environmental Management (EM)

    Wastren-EnergX Mission Support LLC Contract Number: DE-CI0000004 Contract Type: Cost Plus Award Fee 128,879,762 Contract Period: December 2009 - July 2015 Fee Information...

  10. Total Estimated Contract Cost: Performance Period Total Fee Paid

    Office of Environmental Management (EM)

    - September 2015 September 2014 Contractor: Contract Number: Contract Type: Idaho Treatment Group LLC DE-EM0001467 Cost Plus Award Fee Fee Information 444,161,295 Contract Period:...

  11. Total Estimated Contract Cost: Performance Period Total Fee Paid

    Office of Environmental Management (EM)

    Cumulative Fee Paid 22,200,285 Wackenhut Services, Inc. DE-AC30-10CC60025 Contractor: Cost Plus Award Fee 989,000,000 Contract Period: Contract Type: January 2010 - December...

  12. Total Estimated Contract Cost: Performance Period Total Fee Paid

    Office of Environmental Management (EM)

    Number: Contract Type: Contract Period: 0 Minimum Fee Maximum Fee Washington River Protection Solutions LLC DE-AC27-08RV14800 Cost Plus Award Fee 5,553,789,617 Fee Information...

  13. Total Estimated Contract Cost: Performance Period Total Fee Paid

    Office of Environmental Management (EM)

    & Wilcox Conversion Services, LLC Contract Number: DE-AC30-11CC40015 Contract Type: Cost Plus Award Fee Fee Available 4,324,912 408,822,369 Contract Period: December 2010 -...

  14. Variable Selection and Inference for Multi-period Forecasting Problems

    E-Print Network [OSTI]

    Pesaran, M Hashem; Pick, Andreas; Timmermann, Allan

    Variable Selection and Inference for Multi-period Forecasting Problems? M. Hashem Pesaran Cambridge University and USC Andreas Pick De Nederlandsche Bank and Cambridge University, CIMF Allan Timmermann UC San Diego and CREATES January 26, 2009...

  15. Ultrasonic wave propagation in random and periodic particulate composites

    E-Print Network [OSTI]

    Henderson, Benjamin Kyle

    1996-01-01T23:59:59.000Z

    ULTRASONIC WAVE PROPAGATION IN RANDOM AND PERIODIC PARTICULATE COMPOSITES A Thesis by BENJAMIN KYLE HENDERSON Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfilltnent of the requirements for the degree... of MASTER OF SCIENCE May 1996 Major Subject: Aerospace Engineering ULTRASONIC WAVE PROPAGATION IN RANDOM AND PERIODIC PARTICULATE COMPOSITES A Thesis by BENJAMIN KYLE HENDERSON Submitted to Texas ASM University in partial fulfillment...

  16. Flux avalanches in superconducting films with periodic arrays of holes.

    SciTech Connect (OSTI)

    Vlasko-Vlasov, V.; Welp, U.; Metlushko, V.; Crabtree, G. W.; Materials Science Division; Inst. of Solid State Physics RAS

    2000-01-01T23:59:59.000Z

    The magnetic flux dynamics in Nb films with periodic hole arrays is studied magneto-optically. Flux motion in the shape of microavalanches along {l_brace}100{r_brace} and {l_brace}110{r_brace} directions of the hole lattice is observed. At lower temperatures anisotropic large scale thermo-magnetic avalanches dominate flux entry and exit. At T-T{sub c} critical-state-like field patterns periodically appear at fractions of the matching field.

  17. Mean ZZ Ceti pulsation period gauges stellar temperature

    E-Print Network [OSTI]

    Anjum S. Mukadam; M. H. Montgomery; A. Kim; D. E. Winget; S. O. Kepler; J. C. Clemens

    2006-12-15T23:59:59.000Z

    The mean pulsation period of ZZ Ceti stars increases with decreasing effective temperature as we traverse from the blue to the red edge of the instability strip. This well-established correlation between the mean period and spectroscopic temperature suggests that the mean period could be utilized as a tool to measure the relative temperature of the star independent of spectroscopy. Measuring the pulsation periods of a ZZ Ceti star is a simple, model-independent, and straight forward process as opposed to a spectroscopic determination of its temperature. Internal uncertainties in determining the spectroscopic temperature of a ZZ Ceti star are at least 200K, 15% of the 1350K width of the instability strip. The uncertainties in determining the mean period arise mostly from amplitude modulation in the pulsation spectrum and are smaller than 100s for 91% of the ZZ Ceti stars, temperature indicator rather than conventional spectroscopy. Presently we only claim that the relative temperatures of ZZ Ceti stars derived by using the mean pulsation period are certainly as good as and perhaps about 15% better than spectroscopy.

  18. Periodic trajectories for a two-dimensional nonintegrable Hamiltonian

    SciTech Connect (OSTI)

    Baranger, M.; Davies, K.T.R.

    1987-08-01T23:59:59.000Z

    A numerical study is made of the classical periodic trajectories for the two-dimensional nonintegrable Hamiltonian H = 1/2(p/sup 2//sub x/+p/sup 2//sub y/)+(y-1/2x/sup 2/)/sup 2/+0.05 x/sup 2/. In addition to x--y pictures of the trajectories, E--tau (energy--period) plots of the periodic families are presented. Efforts have been ade to include all trajectories with short periods and all simple branchings of these trajectories. The monodromy matrix has been calculated in all cases, and from it the stability properties are derived. The topology of the E--tau plot has been explored, with the following results. One family may have several stable regions. The plot is not completely connected; there are islands. The plot is not a tree; there are cycles. There are isochronous branchings, period-doublings, and period-multiplyings of higher orders, and examples of each of these are presented. There is often more than one branch issuing from a branch point. Some general empirical rules are inferred. In particular, the existence of isochronous branching is seen to be a consequence of the symmetry of the Hamiltonian. All these results agree with the general classification of possible branchings derived in Ref. (10). (M. A. M. de Aguiar, C. P. Malta, M. Baranger, and K. T. R. Davies, in preparation). Finally, some nonperiodic trajectories are calculated to illustrate the fact that stable periodic trajectories lie in ''regular'' regions of phase space, while unstable ones lie in ''chaotic'' regions.

  19. Avoiding Booby Traps and Whipping Up Pumpkin-spinach Purées: A Critical Narrative Analysis of Pediatric Nutrition Birth through the First 12-Months

    E-Print Network [OSTI]

    Spradley, Elizabeth

    2013-11-05T23:59:59.000Z

    , provides insight into the domesticity associated with good mothering. Gerson’s (2010) work uses life history interviews to better understand changing perceptions of family roles. Gerson concludes that while preferences for egalitarian relationships...

  20. Avoiding Booby Traps and Whipping Up Pumpkin-spinach Purées: A Critical Narrative Analysis of Pediatric Nutrition Birth through the First 12-Months 

    E-Print Network [OSTI]

    Spradley, Elizabeth

    2013-11-05T23:59:59.000Z

    With attention to parenting, mothering, and fathering in the academy and attention to pediatric nutrition in the sciences, this study meets at their intersection. Using a critical approach to study narrative, this inquiry ...

  1. INTO/CSU Job Description: Coordinator of Student Engagement This is a 12-month, full-time Administrative Professional (AP) position. INTO is an organization working in

    E-Print Network [OSTI]

    6/8/2012 INTO/CSU Job Description: Coordinator of Student Engagement. Job Purpose The Coordinator of Student Engagement will be responsible

  2. Intermittent and sustained periodic windows in networked chaotic Rössler oscillators

    SciTech Connect (OSTI)

    He, Zhiwei; Sun, Yong [Wuhan Center for Magnetic Resonance, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071 (China) [Wuhan Center for Magnetic Resonance, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071 (China); University of the Chinese Academy of Sciences, Beijing 100049 (China); Zhan, Meng, E-mail: zhanmeng@wipm.ac.cn [Wuhan Center for Magnetic Resonance, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071 (China)] [Wuhan Center for Magnetic Resonance, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071 (China)

    2013-12-15T23:59:59.000Z

    Route to chaos (or periodicity) in dynamical systems is one of fundamental problems. Here, dynamical behaviors of coupled chaotic Rössler oscillators on complex networks are investigated and two different types of periodic windows with the variation of coupling strength are found. Under a moderate coupling, the periodic window is intermittent, and the attractors within the window extremely sensitively depend on the initial conditions, coupling parameter, and topology of the network. Therefore, after adding or removing one edge of network, the periodic attractor can be destroyed and substituted by a chaotic one, or vice versa. In contrast, under an extremely weak coupling, another type of periodic window appears, which insensitively depends on the initial conditions, coupling parameter, and network. It is sustained and unchanged for different types of network structure. It is also found that the phase differences of the oscillators are almost discrete and randomly distributed except that directly linked oscillators more likely have different phases. These dynamical behaviors have also been generally observed in other networked chaotic oscillators.

  3. Time-periodic solutions of the Benjamin-Ono equation

    SciTech Connect (OSTI)

    Ambrose , D.M.; Wilkening, Jon

    2008-04-01T23:59:59.000Z

    We present a spectrally accurate numerical method for finding non-trivial time-periodic solutions of non-linear partial differential equations. The method is based on minimizing a functional (of the initial condition and the period) that is positive unless the solution is periodic, in which case it is zero. We solve an adjoint PDE to compute the gradient of this functional with respect to the initial condition. We include additional terms in the functional to specify the free parameters, which, in the case of the Benjamin-Ono equation, are the mean, a spatial phase, a temporal phase and the real part of one of the Fourier modes at t = 0. We use our method to study global paths of non-trivial time-periodic solutions connecting stationary and traveling waves of the Benjamin-Ono equation. As a starting guess for each path, we compute periodic solutions of the linearized problem by solving an infinite dimensional eigenvalue problem in closed form. We then use our numerical method to continue these solutions beyond the realm of linear theory until another traveling wave is reached (or until the solution blows up). By experimentation with data fitting, we identify the analytical form of the solutions on the path connecting the one-hump stationary solution to the two-hump traveling wave. We then derive exact formulas for these solutions by explicitly solving the system of ODE's governing the evolution of solitons using the ansatz suggested by the numerical simulations.

  4. Attachment 3: Hourly Labor Rate Proposal, attachment 3, RFP RHT...

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

    Hourly Labor Rate Proposal RFP RHT-5-52358 Basic Period - Execution through 12 Months Labor Category Base Rate Hourly Labor Overhead % Fringe Benefits % General & Admin. Exp. %...

  5. Counting of Sieber-Richter pairs of periodic orbits

    E-Print Network [OSTI]

    Gutkin, Boris

    2011-01-01T23:59:59.000Z

    In the framework of the semiclassical approach the universal spectral correlations in the Hamiltonian systems with classical chaotic dynamics can be attributed to the systematic correlations between actions of periodic orbits which (up to the switch in the momentum direction) pass through approximately the same points of the phase space. By considering symbolic dynamics of the system one can introduce a natural ultrametric distance between periodic orbits and organize them into clusters. Each cluster consists of orbits approaching closely each other in the phase space. We study the distribution of cluster sizes for the backer's map in the asymptotic limit of long trajectories. This problem is equivalent to the one of counting degeneracies in the length spectrum of the {\\it de Bruijn} graphs. Based on this fact, we derive the probability $\\P_k$ that $k$ randomly chosen periodic orbits belong to the same cluster. Furthermore, we find asymptotic behaviour of the largest cluster size $|\\Cll_{\\max}|$ and derive th...

  6. Periodic Discrete Energy for Long-Range Potentials

    E-Print Network [OSTI]

    D. P. Hardin; E. B. Saff; Brian Simanek

    2014-12-11T23:59:59.000Z

    We consider periodic energy problems in Euclidean space with a special emphasis on long-range potentials that cannot be defined through the usual infinite sum. One of our main results builds on more recent developments of Ewald summation to define the periodic energy corresponding to a large class of long-range potentials. Two particularly interesting examples are the logarithmic potential and the Riesz potential when the Riesz parameter is smaller than the dimension of the space. For these examples, we use analytic continuation methods to provide concise formulas for the periodic kernel in terms of the Epstein Hurwitz Zeta function. We apply our energy definition to deduce several properties of the minimal energy including the asymptotic order of growth and the distribution of points in energy minimizing configurations as the number of points becomes large. We conclude with some detailed calculations in the case of one dimension, which shows the utility of this approach.

  7. Double-periodic blue variables in the Magellanic Clouds

    E-Print Network [OSTI]

    R. E. Mennickent; G. Pietrzynski; M. Diaz; W. Gieren

    2002-12-09T23:59:59.000Z

    We report the discovery, based on an inspection of the OGLE-II database, of a group of blue variables in the Magellanic Clouds showing simultaneously two kinds of photometric variability: a short-term cyclic variability with typical amplitude $\\Delta I \\sim$ 0.05 mag and period $P_{1}$ between 4 and 16 days and a sinusoidal, long-term cyclic oscillation with much larger amplitude $\\Delta I \\sim$ 0.2 mag with period $P_{2}$ in the range of 150-1000 days. We find that both periods seems to be coupled through the relationship $P_{2}$ = 35.2 $\\pm$ 0.8 $P_{1}$. In general, the short term variability is reminiscent of those shown by Algol-type binaries. We propose that the long-term oscillation could arise in the precession of a elliptical disc fed by a Roche-lobe filling companion in a low mass ratio Algol system.

  8. Lyapunov functions for periodic matrix-valued Jacobi operators

    E-Print Network [OSTI]

    Evgeny Korotyaev; Anton Kutsenko

    2007-01-16T23:59:59.000Z

    We consider periodic matrix-valued Jacobi operators. The spectrum of this operator is absolutely continuous and consists of intervals separated by gaps. We define the Lyapunov function, which is analytic on an associated Riemann surface. On each sheet the Lyapunov function has the standard properties of the Lyapunov function for the scalar case. We show that this function has (real or complex) branch points, which we call resonances. We prove that there exist two types of gaps: i) stable gaps, i.e., the endpoints are periodic and anti-periodic eigenvalues, ii) unstable (resonance) gaps, i.e., the endpoints are resonances (real branch points). We show that some spectral data determine the spectrum (counting multiplicity) of the Jacobi operator.

  9. Period Change of Eclipsing Binaries from the ASAS Catalog

    E-Print Network [OSTI]

    Radoslaw Poleski; Bogumil Pilecki

    2006-07-10T23:59:59.000Z

    We present a preliminary statistical analysis of a period change of eclipsing binaries from the ASAS Catalog of Variable Stars. For each contact and semidetached system brighter than 13.3$mag$ (in V) with a period shorter than 0.4 days and at least 300 observation points we have found an angular velocity $\\omega$ and its time derivative $\\frac{d\\omega}{dt}$. According to our accuracy there is no evidence that average $\\frac{d\\omega}{dt}$ differs from 0. Light curves for selected stars are presented.

  10. Period doubling, information entropy, and estimates for Feigenbaum's constants

    E-Print Network [OSTI]

    Reginald D. Smith

    2013-08-03T23:59:59.000Z

    The relationship between period doubling bifurcations and Feigenbaum's constants has been studied for nearly 40 years and this relationship has helped uncover many fundamental aspects of universal scaling across multiple nonlinear dynamical systems. This paper will combine information entropy with symbolic dynamics to demonstrate how period doubling can be defined using these tools alone. In addition, the technique allows us to uncover some unexpected, simple estimates for Feigenbaum's constants which relate them to log 2 and the golden ratio, phi, as well as to each other.

  11. A wavelet-based tool for studying non-periodicity

    E-Print Network [OSTI]

    R. Benítez; V. J. Bolós; M. E. Ramírez

    2010-07-20T23:59:59.000Z

    This paper presents a new numerical approach to the study of non-periodicity in signals, which can complement the maximal Lyapunov exponent method for determining chaos transitions of a given dynamical system. The proposed technique is based on the continuous wavelet transform and the wavelet multiresolution analysis. A new parameter, the \\textit{scale index}, is introduced and interpreted as a measure of the degree of the signal's non-periodicity. This methodology is successfully applied to three classical dynamical systems: the Bonhoeffer-van der Pol oscillator, the logistic map, and the Henon map.

  12. Diffraction Properties of Periodic Lattices under Free Electron Laser Radiation

    SciTech Connect (OSTI)

    Rajkovic, I.; Busse, G.; Hallmann, J.; More, R.; Petri, M.; Quevedo, W. [Max Planck Institute for Biophysical Chemistry, 37070 Goettingen (Germany); Krasniqi, F.; Rudenko, A. [Max-Planck Advanced Study Group at CFEL, Notkestrasse 85, 22607 Hamburg (Germany); Tschentscher, T. [European XFEL GmbH, Albert-Einstein-Ring 19, 22671 Hamburg (Germany); Stojanovic, N.; Duesterer, S.; Treusch, R. [HASYLAB at DESY, Notkestrasse 85, 22607 Hamburg (Germany); Tolkiehn, M. [Institut fuer Roentgenphysik, Universitaet Goettingen, Friedrich-Hund-Platz 1, 37077 Goettingen (Germany); Techert, S. [Max Planck Institute for Biophysical Chemistry, 37070 Goettingen (Germany); Max-Planck Advanced Study Group at CFEL, Notkestrasse 85, 22607 Hamburg (Germany)

    2010-03-26T23:59:59.000Z

    In this Letter, we report the pioneering use of free electron laser radiation for the investigation of periodic crystalline structures. The diffraction properties of silver behenate single nanocrystals (5.8 nm periodicity) with the dimensions of 20 nmx20 nmx20 {mu}m and as powder with grain sizes smaller than 200 nm were investigated with 8 nm free electron laser radiation in single-shot modus with 30 fs long free electron laser pulses. This work emphasizes the possibility of using soft x-ray free electron laser radiation for these crystallographic studies on a nanometer scale.

  13. Phase transitions in full counting statistics for periodic pumping

    E-Print Network [OSTI]

    Dmitri A. Ivanov; Alexander G. Abanov

    2010-07-16T23:59:59.000Z

    We discuss the problem of full counting statistics for periodic pumping. The probability generating function is usually defined on a circle of the "physical" values of the counting parameter, with its periodicity corresponding to charge quantization. The extensive part of the generating function can either be an analytic function on this circle or have singularities. These two cases may be interpreted as different thermodynamic phases in time domain. We discuss several examples of phase transitions between these phases for classical and quantum systems. Finally, we prove a criterion for the "analytic" phase in the problem of a quantum pump for noninteracting fermions.

  14. Controlling mobility via rapidly oscillating time-periodic stimulus

    E-Print Network [OSTI]

    Prasun Sarkar; Alok Kumar Maity; Anindita Shit; Sudip Chattopadhyay; Jyotipratim Ray Chaudhuri; Suman K Banik

    2014-03-26T23:59:59.000Z

    To address the dynamics of a Brownian particle on a periodic symmetric substrate under high-frequency periodic forcing with a vanishing time average, we construct an effective Langevin dynamics by invoking Kapitza-Landau time window. Our result is then exploited to simulate the mobility both for original and effective dynamics which are in good agreement with theoretical predictions. This close agreement and the enhancement of mobility are very robust against the tailoring of amplitude-to-frequency ratio which substantiates the correctness of our calculation. Present results may be illuminating for understanding the dynamics of cold atoms in electromagnetic fields.

  15. Overall Dynamic Properties of 3-D periodic elastic composites

    E-Print Network [OSTI]

    Ankit Srivastava; Sia Nemat-Nasser

    2011-05-27T23:59:59.000Z

    A method for the homogenization of 3-D periodic elastic composites is presented. It allows for the evaluation of the averaged overall frequency dependent dynamic material constitutive tensors relating the averaged dynamic ?eld variable tensors of velocity, strain, stress, and linear momentum. The formulation is based on micromechanical modeling of a representative unit cell of a composite proposed by Nemat-Nasser & Hori (1993), Nemat-Nasser et. al. (1982) and Mura (1987) and is the 3-D generalization of the 1-D elastodynamic homogenization scheme presented by Nemat-Nasser & Srivastava (2011). We show that for 3-D periodic composites the overall compliance (stiffness) tensor is hermitian, irrespective of whether the corresponding unit cell is geometrically or materially symmetric.Overall mass density is shown to be a tensor and, like the overall compliance tensor, always hermitian. The average strain and linear momentum tensors are, however, coupled and the coupling tensors are shown to be each others' hermitian transpose. Finally we present a numerical example of a 3-D periodic composite composed of elastic cubes periodically distributed in an elastic matrix. The presented results corroborate the predictions of the theoretical treatment.

  16. Spectroscopy and orbital periods of four cataclysmic variable stars

    E-Print Network [OSTI]

    J. R. Thorstensen; C. J. Taylor

    2001-05-29T23:59:59.000Z

    We present spectroscopy and orbital periods Porb of four relatively little-studied cataclysmic variable stars. The stars and their periods are: AF Cam, Porb = 0.324(1) d (the daily cycle count is slightly ambiguous); V2069 Cyg (= RX J2123.7+4217), 0.311683(2) d; PG 0935+075, 0.1868(3) d; and KUV 03580+0614, 0.1495(6) d. V2069 Cyg and KUV 03580+0614 both show HeII lambda 4686 emission comparable in strength to H beta. V2069 Cyg appears to be a luminous novalike variable, and the strong HeII suggests it may be an intermediate polar. The period of KUV 03580+0614 is similar to members of the SW Sex-type novalike variables, and it shows the phase-dependent absorption in the Balmer and He I lines typical of this subclass. AF Cam shows absorption features from a K-type secondary, as expected given its rather long orbital period. The secondary spectrum and the outburst magnitude both suggest that AF Cam is about 1 kpc distant. The spectrum of PG 0935+075 resembles that of a dwarf nova at minimum light, with a noticeable contribution from an M-dwarf secondary star. The secondary spectrum and a tentative outburst magnitude both suggest a distance near 500 pc.

  17. Excitation and control of multi-phase periodic waves in

    E-Print Network [OSTI]

    Fominov, Yakov

    the phase of the excited wave by the driver ("phase-locking") control the wave by varying parametersExcitation and control of multi-phase periodic waves in sine-Gordon equation Arkadiy Shagalovµcr U ()eff U ()eff Threshold condition for phase-locking: µ > µcr = 0.41 > cr = 3.28 3/2 0m 3

  18. Collective periodicity in mean-field models of cooperative behavior

    E-Print Network [OSTI]

    Francesca Collet; Paolo Dai Pra; Marco Formentin

    2015-02-06T23:59:59.000Z

    We propose a way to break symmetry in stochastic dynamics by introducing a dissipation term. We show in a specific mean-field model, that if the reversible model undergoes a phase transition of ferromagnetic type, then its dissipative counterpart exhibits periodic orbits in the thermodynamic limit.

  19. Diffusive propagation of wave packets in a fluctuating periodic potential

    E-Print Network [OSTI]

    Eman Hamza; Yang Kang; Jeffrey Schenker

    2010-10-05T23:59:59.000Z

    We consider the evolution of a tight binding wave packet propagating in a fluctuating periodic potential. If the fluctuations stem from a stationary Markov process satisfying certain technical criteria, we show that the square amplitude of the wave packet after diffusive rescaling converges to a superposition of solutions of a heat equation.

  20. lthough Earth has undergone many periods of significant environmen-

    E-Print Network [OSTI]

    Horton, Tom

    A lthough Earth has undergone many periods of significant environmen- tal change, the planet push the Earth system outside the stable environmental state of the Holocene, with consequences occurred naturally and Earth's regu- latory capacity maintained the conditions that enabled human

  1. On the Survival of Short-Period Terrestrial Planets

    E-Print Network [OSTI]

    Rosemary A. Mardling; D. N. C. Lin

    2004-06-30T23:59:59.000Z

    The currently feasible method of detection of Earth-mass planets is transit photometry, with detection probability decreasing with a planet's distance from the star. The existence or otherwise of short-period terrestrial planets will tell us much about the planet formation process, and such planets are likely to be detected first if they exist. Tidal forces are intense for short-period planets, and result in decay of the orbit on a timescale which depends on properties of the star as long as the orbit is circular. However, if an eccentric companion planet exists, orbital eccentricity ($e_i$) is induced and the decay timescale depends on properties of the short-period planet, reducing by a factor of order $10^5 e_i^2$ if it is terrestrial. Here we examine the influence companion planets have on the tidal and dynamical evolution of short-period planets with terrestrial structure, and show that the relativistic potential of the star is fundamental to their survival.

  2. NANO EXPRESS Fabrication of Large Area Periodic Nanostructures Using

    E-Print Network [OSTI]

    Mohseni, Hooman

    , such as photonic band-gap materials, high dense data storage, and photonic devices. We have developed a maskless areas, such as photonic band-gap materials [1], high dense data storage [2], and photonic devices [3NANO EXPRESS Fabrication of Large Area Periodic Nanostructures Using Nanosphere Photolithography

  3. Colloidal Inks for Directed Assembly of 3-D Periodic Structures

    E-Print Network [OSTI]

    Lewis, Jennifer

    during assembly, which simultaneously facilitated bonding and shape retention of the deposited elements the desired 3-D periodicity, places the most stringent demands on ink design. Direct-write techniques- controlled viscoelastic response; that is, they must be able to flow through a deposition nozzle

  4. Model Reduction Near Periodic Orbits of Hybrid Dynamical Systems

    E-Print Network [OSTI]

    Sastry, S. Shankar

    manipulation in manufacturing [2], gene regulation in cells [3], and power generation in electrical systems [41 Model Reduction Near Periodic Orbits of Hybrid Dynamical Systems Samuel A. Burden, Shai Revzen system. We demonstrate reduction of a high­dimensional underactuated mechanical model for terrestrial

  5. Quality of monitoring of stochastic events by periodic and ...

    E-Print Network [OSTI]

    David K. Y. Yau, Nung Kwan Yip, Chris Y. T. Ma, Nageswara S. V. Rao, Mallikarjun Shankar

    2010-08-28T23:59:59.000Z

    infeasible to transmit sensor data over long distances, or in an underground system of ... the case of static sensors, their placement to best protect people has been ... function of the event dynamics and type of events: (1) What is the QoM of a ... a class of periodic coverage algorithms considering the travel time overhead.

  6. Proton aurora related to intervals of pulsations of diminishing periods

    E-Print Network [OSTI]

    California at Berkeley, University of

    Proton aurora related to intervals of pulsations of diminishing periods A. G. Yahnin,1 T. A are generated because of a cyclotron instability of the anisotropic distribution of ring current ions. Proton precipitation produced by the cyclotron instability can be responsible for proton aurora. Indeed

  7. Periodic schedules for Unitary Timed Weighted Event Graphs

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Event Graph model (TEG also called marked graphs [5]) and dataflow graphs, oftenly used in the computer questions are polynomially solved for ordinary TEG [1], [5], [6], [8]. In particular, it has been shown that if a TEG is live, there always exists a periodic schedule with the optimal throughput (i.e. with the same

  8. Strategic Sourcing Dashboard Reporting Period: January 2010 through December 2011

    E-Print Network [OSTI]

    Minnesota, University of

    We have accomplished $10.8 million in annual savings through our Strategic Sourcing efforts over below. Strategic Sourcing continues to have a significant emphasis for Purchasing Services, but savings/Activities/Risks for this Reporting Period Annual savings of over $200,000 was booked in the last quarter in the office and lab supply

  9. Total Estimated Contract Cost: Performance Period Total Fee Paid

    Office of Environmental Management (EM)

    Fee Paid 127,390,991 Contract Number: Fee Available Contract Period: Contract Type: Cost Plus Award Fee 4,104,318,749 28,500,000 31,597,837 0 39,171,018 32,871,600 EM...

  10. CLATHRATE HYDRATES FORMATION IN SHORT-PERIOD COMETS

    SciTech Connect (OSTI)

    Marboeuf, Ulysse; Mousis, Olivier; Petit, Jean-Marc [Institut UTINAM, CNRS-UMR 6213, Observatoire de Besancon, BP 1615, 25010 Besancon Cedex (France); Schmitt, Bernard, E-mail: marboeuf@ujf-grenoble.f [Universite Joseph Fourier, Laboratoire de Planetologie de Grenoble, CNRS INSU (France)

    2010-01-01T23:59:59.000Z

    The initial composition of current models of cometary nuclei is only based on two forms of ice: crystalline ice for long-period comets and amorphous ice for short-period comets. A third form of ice, i.e., clathrate hydrate, could exist within the short-period cometary nuclei, but the area of formation of this crystalline structure in these objects has never been studied. Here, we show that the thermodynamic conditions in the interior of short-period comets allow the existence of clathrate hydrates in Halley-type comets. We show that their existence is viable in the Jupiter family comets only when the equilibrium pressure of CO clathrate hydrate is at least 1 order of magnitude lower than the usually assumed theoretical value. We calculate that the amount of volatiles that could be trapped in the clathrate hydrate layer may be orders of magnitude greater than the daily amount of gas released at the surface of the nucleus at perihelion. The formation and the destruction of the clathrate hydrate cages could then explain the diversity of composition of volatiles observed in comets, as well as some pre-perihelion outbursts. We finally show that the potential clathrate hydrate layer in comet 67P/Churyumov-Gerasimenko would, unfortunately, be deep inside the nucleus, out of reach of the Rosetta lander. However, such a clathrate hydrate layer would show up by the gas composition of the coma.

  11. Extraordinary infrared transmission through a periodic bowtie aperture array

    E-Print Network [OSTI]

    Xu, Xianfan

    Extraordinary infrared transmission through a periodic bowtie aperture array Edward C. Kinzel to surface plasmon polariton (SPP) resonances and/or Rayleigh­Wood anomalies (RWA). Bowtie apertures to be strongly resonant. We demonstrate here that the total transmission through a bowtie aperture array can

  12. Periodic fluctuations in deep water formation due to sea ice

    E-Print Network [OSTI]

    Raj Saha

    2015-02-21T23:59:59.000Z

    During the last ice age several quasi-periodic abrupt warming events took place. Known as Dansgaard-Oeschger (DO) events their effects were felt globally, although the North Atlantic experienced the largest temperature anomalies. Paleoclimate data shows that the fluctuations often occurred right after massive glacial meltwater releases in the North Atlantic and in bursts of three or four with progressively decreasing strengths. In this study a simple dynamical model of an overturning circulation and sea ice is developed with the goal of understanding the fundamental mechanisms that could have caused the DO events. Interaction between sea ice and the overturning circulation in the model produces self-sustained oscillations. Analysis and numerical experiments reveal that the insulating effect of sea ice causes the ocean to periodically vent out accumulated heat in the deep ocean into the atmosphere. Subjecting the model to idealized freshwater forcing mimicking Heinrich events causes modulation of the natural periodicity and produces burst patterns very similar to what is observed in temperature proxy data. Numerical experiments with the model also suggests that the characteristic period of 1,500 years is due to the geometry, or the effective heat capacity, of the ocean that comes under sea ice cover.

  13. Some Reflections on the Periodization of Tibetan History

    E-Print Network [OSTI]

    Cuevas, Bryan

    2006-01-01T23:59:59.000Z

    Some Reflections on the Periodization of Tibetan History* Bryan J. Cuevas(Florida State University, USA) istory is always expressed as a narrative, a story about the past. Towrite a story out of the events of the past, historians must give...

  14. Bounded, Periodic Relative Motion using Canonical Epicyclic Orbital Elements

    E-Print Network [OSTI]

    Rowley, Clarence W.

    Bounded, Periodic Relative Motion using Canonical Epicyclic Orbital Elements N. Jeremy Kasdin using canonical perturbation theory for studying relative motion trajectories and for finding simple motion [2, 3, 4, 5]. This has the advantage that Lagrange's planetary equations (LPEs) or Gauss

  15. The theme of a vanishing period. Daniel Barlet

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    period, Bernstein polynomial, filtered Gauss-Manin sys- tem, (a,b)-module, Brieskorn module. Contents 1.1 Stability by quotient and twisted duality. . . . . . . . . . . . . . . . . 10 3.2 Standard and canonical forms for a []-primitive theme. . . . . . . . 18 4 The uniqueness of a canonical form 23 4

  16. Local Lyapunov Functions for periodic and finite-time ODEs

    E-Print Network [OSTI]

    Hafstein, Sigurður Freyr

    Local Lyapunov Functions for periodic and finite-time ODEs Peter Giesl and Sigurdur Hafstein Abstract Lyapunov functions for general systems are difficult to construct. How- ever, for autonomous Lyapunov function by solving a matrix equa- tion. Consequently, the same function is a local Lyapunov

  17. Periodic photometric variability of the brown dwarf Kelu-1

    E-Print Network [OSTI]

    F. J. Clarke; C. G. Tinney; K. R. Covey

    2002-01-10T23:59:59.000Z

    We have detected a strong periodicity of 1.80+/-0.05 hours in photometric observations of the brown dwarf Kelu-1. The peak-to-peak amplitude of the variation is ~1.1% (11.9+/-0.8 mmag) in a 41nm wide filter centred on 857nm and including the dust/temperature sensitive TiO & CrH bands. We have identified two plausible causes of variability: surface features rotating into- and out-of-view and so modulating the light curve at the rotation period; or, elliposidal variability caused by an orbiting companion. In the first scenario, we combine the observed vsin(i) of Kelu-1 and standard model radius to determine that the axis of rotation is inclined at 65+/-12 degrees to the line of sight.

  18. Periodic Schrödinger operators with local defects and spectral pollution

    E-Print Network [OSTI]

    Eric Cancès; Virginie Ehrlacher; Yvon Maday

    2011-11-16T23:59:59.000Z

    This article deals with the numerical calculation of eigenvalues of perturbed periodic Schr\\"odinger operators located in spectral gaps. Such operators are encountered in the modeling of the electronic structure of crystals with local defects, and of photonic crystals. The usual finite element Galerkin approximation is known to give rise to spectral pollution. In this article, we give a precise description of the corresponding spurious states. We then prove that the supercell model does not produce spectral pollution. Lastly, we extend results by Lewin and S\\'er\\'e on some no-pollution criteria. In particular, we prove that using approximate spectral projectors enables one to eliminate spectral pollution in a given spectral gap of the reference periodic Sch\\"odinger operator.

  19. Periodic fluctuations in deep water formation due to sea ice

    E-Print Network [OSTI]

    Saha, Raj

    2015-01-01T23:59:59.000Z

    During the last ice age several quasi-periodic abrupt warming events took place. Known as Dansgaard-Oeschger (DO) events their effects were felt globally, although the North Atlantic experienced the largest temperature anomalies. Paleoclimate data shows that the fluctuations often occurred right after massive glacial meltwater releases in the North Atlantic and in bursts of three or four with progressively decreasing strengths. In this study a simple dynamical model of an overturning circulation and sea ice is developed with the goal of understanding the fundamental mechanisms that could have caused the DO events. Interaction between sea ice and the overturning circulation in the model produces self-sustained oscillations. Analysis and numerical experiments reveal that the insulating effect of sea ice causes the ocean to periodically vent out accumulated heat in the deep ocean into the atmosphere. Subjecting the model to idealized freshwater forcing mimicking Heinrich events causes modulation of the natural p...

  20. Wave propagation in periodic networks of thin fibers

    E-Print Network [OSTI]

    S. Molchanov; B. Vainberg

    2009-08-02T23:59:59.000Z

    We will discuss a one-dimensional approximation for the problem of wave propagation in networks of thin fibers. The main objective here is to describe the boundary (gluing) conditions at branching points of the limiting one-dimensional graph. The results will be applied to Mach-Zehnder interferometers on chips and to periodic chains of the interferometers. The latter allows us to find parameters which guarantee the transparency and slowing down of wave packets.

  1. Spatially Dispersive Inhomogeneous Electromagnetic Media with Periodic Structure

    E-Print Network [OSTI]

    Gratus, Jonathan

    2015-01-01T23:59:59.000Z

    Spatially dispersive (also known as non-local) electromagnetic media are considered where the parameters defining the permittivity relation vary periodically. Maxwell's equations give rise to a difference equation corresponding to the Floquet modes. A complete set of approximate solutions is calculated which are valid when the inhomogeneity is small. This is applied to inhomogeneous wire media. A new feature arises when considering spatially dispersive media, that is the existence of coupled modes.

  2. A climatological analysis of the freeze period of Texas

    E-Print Network [OSTI]

    Donahue, Christopher Alan

    1991-01-01T23:59:59.000Z

    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Synoptic Patterns Sample Calculations and Applications CONCLUSIONS AND RECOMMENDATIONS. . . 31 41 45 59 70 76 VI 81 APPENDIX Computer Programs 83 VITA 90 LIST OF TABLES Table Page 1 Periods of record for substations 17 2 Sample of data... of the freeze in parentheses. . . . . . . . . 64 16 Dates of 10% and 90% first and last freeze probabilities 75 tx LIST OF FIGURES Figure Page Map of the study area with the substation locations indicated . 2 Station history for Corsicana, Texas 16...

  3. PARC Periodical: Volume 5, Issue 3 | Photosynthetic Antenna Research Center

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for RenewableSpeedingBiomass and BiofuelsOversightand SimulatedEQUILIBRIUM4,Periodical:

  4. Magnetic field gradients in solar wind plasma and geophysics periods

    E-Print Network [OSTI]

    A. Bershadskii

    2006-11-16T23:59:59.000Z

    Using recent data obtained by Advanced Composition Explorer (ACE) the pumping scale of the magnetic field gradients of the solar wind plasma has been calculated. This pumping scale is found to be equal to 24h $\\pm$ 2h. The ACE spacecraft orbits at the L1 libration point which is a point of Earth-Sun gravitational equilibrium about 1.5 million km from Earth. Since the Earth's magnetosphere extends into the vacuum of space from approximately 80 to 60,000 kilometers on the side toward the Sun the pumping scale cannot be a consequence of the 24h-period of the Earth's rotation. Vise versa, a speculation is suggested that for the very long time of the coexistence of Earth and of the solar wind the weak interaction between the solar wind and Earth could lead to stochastic synchronization between the Earth's rotation and the pumping scale of the solar wind magnetic field gradients. This synchronization could transform an original period of the Earth's rotation to the period close to the pumping scale of the solar wind magnetic field gradients.

  5. Latest Jet Results from the Tevatron

    E-Print Network [OSTI]

    Mikolaj Cwiok; for the CDF; D0 Collaborations

    2007-05-21T23:59:59.000Z

    Recent QCD jet production measurements in p-pbar collisions at sqrt(s)=1.96 TeV at the Tevatron Collider at Fermilab are presented. Preliminary: inclusive jet, dijet, isolated photon + jet and Z + jets measurements are compared to available perturbative QCD models.

  6. Latest Documents and Notices | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(FactDepartment ofLetter Report:40PM toLEDControlDepartmentofLasting GiftsSeptember

  7. Latest Documents and Notices | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(FactDepartment ofLetter Report:40PM toLEDControlDepartmentofLasting

  8. Latest Documents and Notices | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(FactDepartment ofLetter Report:40PM toLEDControlDepartmentofLastingJuly 31, 2014

  9. Latest Documents and Notices | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(FactDepartment ofLetter Report:40PM toLEDControlDepartmentofLastingJuly 31,

  10. Latest Documents and Notices | 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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122Commercial602 1,39732on ArmedManufacturingJune 17, 2015LMLand andShadeof

  11. Latest Documents and Notices | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking ofOil & Gas »of Energy Laser-Firing ChemCam VitalJune 11, 2015

  12. Latest Documents and Notices | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking ofOil & Gas »of Energy Laser-Firing ChemCam VitalJune 11, 2015May

  13. Latest Documents and Notices | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking ofOil & Gas »of Energy Laser-Firing ChemCam VitalJune 11,

  14. Latest Documents and Notices | Department of Energy

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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 Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking ofOil & Gas »of Energy Laser-Firing ChemCam VitalJune 11,February

  15. Latest Documents and Notices | Department of Energy

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  16. Latest Documents and Notices | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking ofOil & Gas »of Energy Laser-Firing ChemCam VitalJune23, 2014

  17. Latest Documents and Notices | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking ofOil & Gas »of Energy Laser-Firing ChemCam VitalJune23, 201412,

  18. Latest Documents and Notices | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking ofOil & Gas »of Energy Laser-Firing ChemCam VitalJune23,

  19. Alternative Fuels Data Center: Latest Additions

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisiting the TWP TWP RelatedCellulase C.TierIdaho County

  20. ARQ07-1.latest.indd

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041cloth DocumentationProducts (VAP) VAP UpdateRefresh ModelES&HresultsARPES ProvidesARPESNRC

  1. NASA-TM-III642 Design of Inielligent Mesoscale Periodic Array

    E-Print Network [OSTI]

    Asher, Sanford A.

    i" /} , NASA-TM-III642 Design of Inielligent Mesoscale Periodic Array Structures Utilizing Smart *National Research Council hitrodoetion Mesoscale Periodic Arlay Structures (MPAS, also known as crystalline

  2. On 3D instabilities of 2D time-periodic flows - Department of ...

    E-Print Network [OSTI]

    The Karman vortex street, the 2D periodically shedding wake of a circular cylinder, is the prototypical example. We shall consider this as well as a periodically ...

  3. Properties of an axially periodic magnetic field in a betatron

    SciTech Connect (OSTI)

    Zvontsov, A.A.; Filinova, V.A.; Chakhlov, V.L.

    1983-07-01T23:59:59.000Z

    It is shown by solving an equation for the vector potential A (r, z) of the magnetic field that under appropriate conditions the focusing properties of a betatron magnetic field are periodic with respect to the z coordinate. Under these conditions there may be several equilibrium orbits lying in parallel planes z = 0, z = z/sub 01/ xxx, z = mz/sub 01/ in the accelerator. An equation is derived for the distance z/sub 01/ between the equilibrium orbit planes for a given orbit radius r/sub 0/ and field decay exponent n/sub 0/. The operation of such accelerators is described.

  4. Light bullets in nonlinear periodically curved waveguide arrays

    SciTech Connect (OSTI)

    Matuszewski, Michal; Garanovich, Ivan L. [Nonlinear Physics Centre, Research School of Physics and Engineering, Australian National University, Canberra, ACT 0200 (Australia); Sukhorukov, Andrey A. [Nonlinear Physics Centre, Research School of Physics and Engineering, Australian National University, Canberra, ACT 0200 (Australia); Centre for Ultra-high Bandwidth Devices for Optical Systems (CUDOS), Research School of Physics and Engineering, Australian National University, Canberra, ACT 0200 (Australia)

    2010-04-15T23:59:59.000Z

    We predict that stable mobile spatiotemporal solitons can exist in arrays of periodically curved optical waveguides. We find two-dimensional light bullets in planar arrays with harmonic waveguide bending and three-dimensional bullets in square lattices with helical waveguide bending using variational formalism. Stability of the light-bullet solutions is confirmed by the direct numerical simulations which show that the light bullets can freely move across the curved arrays. This mobility property is a distinguishing characteristic compared to previously considered discrete light bullets which were trapped to a specific lattice site. These results suggest new possibilities for flexible spatiotemporal manipulation of optical pulses in photonic lattices.

  5. Forced Oscillations in Fluid Tori and Quasi-Periodic Oscillations

    E-Print Network [OSTI]

    William H. Lee

    2005-10-19T23:59:59.000Z

    The kilo-Hertz Quasi--Periodic Oscillations in X-ray binaries could originate within the accretion flow, and be a signature of non--linear fluid oscillations and mode coupling in strong gravity. The possibility to decipher these systems will impact our knowledge of fundamental parameters such as the neutron star mass, radius, and spin. Thus they offer the possibility to constrain the nuclear equation of state and the rotation parameter of stellar--mass black holes. We review the general properties of these oscillations from a hydrodynamical point of view, when the accretion flow is subject to external perturbations and summarize recent results.

  6. Holographic classification of Topological Insulators and its 8-fold periodicity

    E-Print Network [OSTI]

    André LeClair; Denis Bernard

    2012-05-16T23:59:59.000Z

    Using generic properties of Clifford algebras in any spatial dimension, we explicitly classify Dirac hamiltonians with zero modes protected by the discrete symmetries of time-reversal, particle-hole symmetry, and chirality. Assuming the boundary states of topological insulators are Dirac fermions, we thereby holographically reproduce the Periodic Table of topological insulators found by Kitaev and Ryu. et. al, without using topological invariants nor K-theory. In addition we find candidate Z_2 topological insulators in classes AI, AII in dimensions 0,4 mod 8 and in classes C, D in dimensions 2,6 mod 8.

  7. Dense periodic packings of tetrahedra with small repeating units

    E-Print Network [OSTI]

    Yoav Kallus; Veit Elser; Simon Gravel

    2010-03-19T23:59:59.000Z

    We present a one-parameter family of periodic packings of regular tetrahedra, with the packing fraction $100/117\\approx0.8547$, that are simple in the sense that they are transitive and their repeating units involve only four tetrahedra. The construction of the packings was inspired from results of a numerical search that yielded a similar packing. We present an analytic construction of the packings and a description of their properties. We also present a transitive packing with a repeating unit of two tetrahedra and a packing fraction $\\frac{139+40\\sqrt{10}}{369}\\approx0.7194$.

  8. Non-existence of time-periodic vacuum spacetimes

    E-Print Network [OSTI]

    Alexakis, Spyros

    2015-01-01T23:59:59.000Z

    We prove that smooth asymptotically flat solutions to the Einstein vacuum equations which are assumed to be periodic in time, are in fact stationary in a neighborhood of infinity. Our result applies under physically relevant regularity assumptions purely at the level of the initial data. In particular, our work removes the assumption of analyticity up to null infinity in [Bicak, Scholtz, and Tod; 2010]. The proof relies on extending a suitably constructed "candidate" Killing vector field from null infinity, via Carleman-type estimates obtained in [Alexakis, Schlue, Shao; 2013].

  9. EIS-0391: Notice to Extend Scoping Period | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny:Revised FindingDepartment of Energy :to Extend Scoping Period EIS-0391: Notice

  10. Tsallis Distribution Decorated With Log-Periodic Oscillation

    E-Print Network [OSTI]

    Wilk, Grzegorz

    2015-01-01T23:59:59.000Z

    In many situations, in all branches of physics, one encounters power-like behavior of some variables which are best described by a Tsallis distribution characterized by a nonextensivity parameter $q$ and scale parameter $T$. However, there exist experimental results which can be described only by a Tsallis distributions which are additionally decorated by some log-periodic oscillating factor. We argue that such a factor can originate from allowing for a complex nonextensivity parameter $q$. The possible information conveyed by such an approach (like the occurrence of complex heat capacity, the notion of complex probability or complex multiplicative noise) will also be discussed.

  11. Turbulent transport phenomena in a channel with periodic rib turbulators

    SciTech Connect (OSTI)

    Liou, T.M.; Hwang, J.J.; Chen, S.H. (National Tsing Hua University, Hsinchu (Taiwan))

    1992-09-01T23:59:59.000Z

    Periodic fully developed turbulent flow in a 2D channel with rib turbulators on two opposite walls has been studied numerically and experimentally. In numerical predictions, an algebraic Reynolds stress turbulence model is adopted, and a smoothed hybrid central/skew upstream difference scheme is developed. In experiments, the laser-Doppler velocimetry and laser holographic interferometry are employed to measure the local flow and heat transfer characteristics. The results are obtained with the ratio of pitch to rib height 5, 10, 15, and 20, for Reynolds number of 3.3 x 10 exp 4 and are presented in terms of the reattachment length, mean velocity and turbulent kinetic energy profiles, isotherm patterns, and distributions of local pressure recovery and Nusselt number. A detailed comparison with experimental data shows that the present calculations have an improvement over the previous work in the prediction of periodic ribbed-wall flow and heat transfer. In addition, regions susceptible to hot spots are identified by examining the distributions of the local Nusselt number. Furthermore, the enhancement of mean Nusselt number is documented in terms of relative contributions of the increased turbulence intensity and surface area provided by the ribs. 32 refs.

  12. Periodicity of the solar full-disk magnetic fields

    SciTech Connect (OSTI)

    Xiang, N. B.; Qu, Z. N.; Zhai, Q. [National Astronomical Observatories/Yunnan Observatory, CAS, Kunming 650011 (China)

    2014-07-01T23:59:59.000Z

    A full-disk solar magnetogram has been measured each day since 1970 January 19, and the daily Magnetic Plage Strength Index (MPSI) and the daily Mount Wilson Sunspot Index (MWSI) were calculated for each magnetogram at the Mount Wilson Observatory. The MPSI and MWSI are used to investigate the periodicity of the solar full-disk magnetic activity through autocorrelation analyses. Just two periods, the solar cycle and the rotation cycle, are determined in both the MPSI (the solar full-disk weak magnetic field activity) and MWSI (the solar full-disk strong magnetic field activity) with no annual signal found. The solar cycle for MPSI (10.83 yr) is found to be obviously longer than that for MWSI (9.77 yr). The rotation cycle is determined to be 26.8 ± 0.63 sidereal days for MPSI and 27.4 ± 2.4 sidereal days for MWSI. The rotation cycle length for MPSI is found to fluctuate around 27 days within a very small amplitude, but for MWSI it obviously temporally varies with a rather large amplitude. The rotation cycle for MWSI seems longer near solar minimum than at solar maximum. Cross-correlation analyses of daily MPSI and MWSI are carried out, and it is inferred that the MPSI components partly come from relatively early MWSI measurements.

  13. Periodic forcing of graphene as geometric ripples on its surface

    E-Print Network [OSTI]

    Tridev Mishra; Tapomoy Guha Sarkar; Jayendra N. Bandyopadhyay

    2014-10-27T23:59:59.000Z

    We explore the possibility of using modulated high frequency periodic driving of mono-layer graphene to create effects of curved geometry. The low energy continuum limit of graphene is modeled using Dirac equation in (2+1) dimensions. We suggest that the modifications to the Dirac equation when written in a curved background space can also be induced by a suitable driving scheme. The time dependent system yields, in the approximate limit of high frequency pulsing, an effective time independent Hamiltonian that governs the time evolution, except for an initial and a final kick. We use a specific form of 4-phase pulsed forcing with suitably tuned choice of modulating operators to mimic the effects of weak metric perturbations and thereby effectively induce mild wrinkles on the surface. The strength of the perturbation is found to be directly related to omega^{-1} the time period of the driving field at the leading order. We apply the method to engineer some specific `nearly flat' metrics and we find that the imprint of curvilinear geometry modifies the band structure significantly. The emergence of band gap at the Dirac point is crucial in this regard. We suggest that this method shall be useful in studying the response of various properties of such materials to non-trivial geometry without requiring any actual physical deformations.

  14. Feedback Control of the Sawtooth Period through Real Time Control of the Ion Cyclotron Resonance Frequency

    E-Print Network [OSTI]

    Feedback Control of the Sawtooth Period through Real Time Control of the Ion Cyclotron Resonance Frequency

  15. Energy Conservation Program for Consumer Products: Test Procedures for Furnaces and Boilers, Comment Period Extension

    Broader source: Energy.gov [DOE]

    Energy Conservation Program for Consumer Products: Test Procedures for Furnaces and Boilers, Comment Period Extension

  16. Quasi-periodic Fibonacci and periodic one-dimensional hypersonic phononic crystals of porous silicon: Experiment and simulation

    SciTech Connect (OSTI)

    Aliev, Gazi N., E-mail: g.aliev@bath.ac.uk; Goller, Bernhard [Department of Physics, University of Bath, Bath BA2 7AY (United Kingdom)

    2014-09-07T23:59:59.000Z

    A one-dimensional Fibonacci phononic crystal and a distributed Bragg reflector were constructed from porous silicon. The structures had the same number of layers and similar acoustic impedance mismatch, and were electrochemically etched in highly boron doped silicon wafers. The thickness of the individual layers in the stacks was approximately 2??m. Both types of hypersonic band gap structure were studied by direct measurement of the transmittance of longitudinal acoustic waves in the 0.1–2.6?GHz range. Acoustic band gaps deeper than 50?dB were detected in both structures. The experimental results were compared with model calculations employing the transfer matrix method. The acoustic properties of periodic and quasi-periodic structures in which half-wave retarding bi-layers do not consist of two quarter-wave retarding layers are discussed. The strong correlation between width and depth of gaps in the transmission spectra is demonstrated. The dominant mechanisms of acoustic losses in porous multilayer structures are discussed. The elastic constants remain proportional over our range of porosity, and hence, the Grüneisen parameter is constant. This simplifies the expression for the porosity dependence of the Akhiezer damping.

  17. Dynamically tunable Fano resonance in periodically asymmetric graphene nanodisk pair

    E-Print Network [OSTI]

    Zhang, Zhengren; Fan, Yuancheng; Yin, Pengfei; Zhang, Liwei; Shi, Xi

    2015-01-01T23:59:59.000Z

    We present a dynamically frequency tunable Fano resonance planar device composed of periodically asymmetric graphene nanodisk pair for the mid-infrared region. There are two kinds of modes in this structure, that is, the symmetric mode and the antisymmetric mode. The resonance coupling between the symmetric and antisymmetric modes creates a classical Fano resonance. Both of the Fano resonance amplitude and frequency of the structure can be dynamically controlled by varying the Fermi energy of graphene. Resonance transition in the structure is studied to reveal the physical mechanism behind the dynamically tunable Fano resonance. The features of the Fano resonant graphene nanostructures should have promising applications in tunable THz filters, switches, and modulators.

  18. Desingularization of periodic vortex sheet roll-up

    SciTech Connect (OSTI)

    Krasny, R.

    1986-08-01T23:59:59.000Z

    The equations governing periodic vortex sheet roll-up from analytic initial data are desingularized. Linear stability analysis shows that this diminishes the vortex sheet model's short wavelength instability, yielding a numerically more tractable set of equations. Computational evidence is presented which indicates that this approximation converges, beyond the critical time of singularity formation in the vortex sheet, if the mesh is refined and the smoothing parameter is reduced in the proper order. The results suggest that the vortex sheet rolls up into a double branched spiral past the critical time. It is demonstrated that either higher machine precision or a spectra filter can be used to maintain computational accuracy as the smoothing parameter is decreased. Some conjectures on the model's long time asymptotic state are given.

  19. Periodic relativity: deflection of light, acceleration, rotation curves

    E-Print Network [OSTI]

    Vikram H. Zaveri

    2014-12-08T23:59:59.000Z

    Vectorial analysis relating to derivation of deflection of light is presented. Curvilinear acceleration is distinguished from the Newtonian polar conic acceleration. The difference between the two is due to the curvature term. Lorentz invariant expression for acceleration is derived. A physical theory of rotation curves of galaxies based on second solution to Einstein's field equation is presented. Theory is applied to Milky Way, M31, NGC3198 and Solar system. Modified Kepler's third law yields correct orbital periods of stars in a galaxy. Deviation factor in the line element of the theory happens to be the ratio of the Newtonian gravitational acceleration to the measured acceleration of the star in the galaxy. Therefore this deviation factor can replace the MOND function.

  20. Magnetic helicity evolution in a periodic domain with imposed field

    E-Print Network [OSTI]

    Axel Brandenburg; William H. Matthaeus

    2004-05-24T23:59:59.000Z

    In helical hydromagnetic turbulence with an imposed magnetic field (which is constant in space and time) the magnetic helicity of the field within a periodic domain is no longer an invariant of the ideal equations. Alternatively, there is a generalized magnetic helicity that is an invariant of the ideal equations. It is shown that this quantity is not gauge invariant and that it can therefore not be used in practice. Instead, the evolution equation of the magnetic helicity of the field describing the deviation from the imposed field is shown to be a useful tool. It is demonstrated that this tool can determine steady state quenching of the alpha-effect. A simple three-scale model is derived to describe the evolution of the magnetic helicity and to predict its sign as a function of the imposed field strength. The results of the model agree favorably with simulations.

  1. A Radio SETI Campaign for microsec-sec Periodic Signals

    E-Print Network [OSTI]

    Harp, G R; Astorga, Alfredo; Arbunich, Jack; Hightower, Kristin; Meitzner, Seth; Barott, W C; Nolan, Michael C; Messerschmitt, D G; Vakoch, Douglas A; Shostak, Seth; Tarter, J C

    2015-01-01T23:59:59.000Z

    We report a novel radio autocorrelation (AC) search for extraterrestrial intelligence (SETI). For selected frequencies across the terrestrial microwave window (1-10 GHz) observations were conducted at the Allen Telescope Array to identify artificial non-sinusoidal periodic signals with radio bandwidths greater than 1 kHz, which are capable of carrying substantial messages with symbol-rates from 10-10e6 Hz. Out of 243 observations, about half (101) were directed toward sources with known continuum flux greater than 1 Jy (quasars, pulsars, supernova remnants and masers), based on the hypothesis that they might harbor heretofore undiscovered natural or artificial, repetitive, phase or frequency modulation. The rest of the targets were mostly toward exoplanet stars and similarly interesting targets from the standpoint of SETI. This campaign rules out several previously untested hypotheses relating to the number of artificially modulated "natural" sources. Since we are using a phase sensitive detector, these obser...

  2. Ratchet transport and periodic structures in parameter space

    E-Print Network [OSTI]

    Alan Celestino; Cesar Manchein; Holokx A. Albuquerque; Marcus W. Beims

    2011-11-06T23:59:59.000Z

    Ratchet models are prominent candidates to describe the transport phenomenum in nature in the absence of external bias. This work analyzes the parameter space of a discrete ratchet model and gives direct connections between chaotic domains and a family of isoperiodic stable structures with the ratchet current. The isoperiodic structures appear along preferred direction in the parameter space giving a guide to follow the current, which usually increases inside the structures but is independent of the corresponding period. One of such structures has the shrimp-shaped form which is known to be an universal structure in the parameter space of dissipative systems. Currents in parameter space provide a direct measure of the momentum asymmetry of the multistable and chaotic attractors times the size of the corresponding basin of attraction. Transport structures are shown to exist in the parameter space of the Langevin equation with an external oscillating force.

  3. Periodic forcing of a 555-IC based hysteretic oscillator

    E-Print Network [OSTI]

    Moises Santillan

    2014-08-12T23:59:59.000Z

    In this work we designed and developed a master-slave electronic oscillatory system (based on the 555-timer IC working in the astable mode), and investigated its dynamic behavior regarding synchronization. For that purpose we measured the circulation number corresponding to the phase-locking rhythm achieved in a large set of values of the normalized forcing period (NFP) and of the coupling strength between the master and the slave oscillators. In particular we were interested in the system behavior in the strong-coupling limit, because such problem has not been extensively studied from an experimental perspective. Our results indicate the existence of a degenerate codimension-2 bifurcation point at NFP=1:2, where all the phase-locking regions converge in the very strong coupling limit. These findings were corroborated by a mathematical model we developed to that end.

  4. Transverse commensurability effect for vortices on periodic pinning arrays

    SciTech Connect (OSTI)

    Reichhardt, Charles [Los Alamos National Laboratory; Reichhardt, Cynthia J [Los Alamos National Laboratory

    2008-01-01T23:59:59.000Z

    Using computer simulations, we demonstrate a type of commensurability that occurs for vortices moving longitudinally through periodic pinning arrays in the presence of an additional transverse driving force. As a function of vortex density, there is a series of broad maxima in the transverse critical depinning force that do not fall at the matching fields where the number of vortices equals an integer multiple of the number of pinning sites. The commensurability effects are associated with dynamical states in which evenly spaced structures consisting of one or more moving rows of vortices form between rows of pinning sites. Remarkably, the critical transverse depinning force can be more than an order of magnitude larger than the longitudinal depinning force.

  5. Physics Division progress report for period ending September 30, 1984

    SciTech Connect (OSTI)

    Livingston, A.B. (ed.)

    1985-01-01T23:59:59.000Z

    The research activities of the Division are centered primarily in three areas: experimental nuclear physics, experimental atomic physics, and theoretical nuclear and atomic physics. The largest of these efforts, experimental nuclear physics, is dominated by the heavy ion research program. A major responsibility under this program is the operation of the Holifield Heavy Ion Research Facility as a national user facility. During the period of this report, the facility has begun routine operation for the experimental program. The experimental atomic physics program has two components: the accelerator-based studies of basic collisional phenomena and the studies in support of the controlled fusion program. Also associated with the fusion-related studies are a plasma diagnostics program and the operation of an atomic physics data center. The theoretical physics program, both nuclear and atomic, is covered. This program has benefited this year from the success of the VAX-AP computer system and from the increase in manpower provided by the ORNL/University of Tennessee Distinguished Scientist Program. Smaller programs in applications and high-energy physics are summarized. During the period of this report, we continued to explore possible future extensions of the Holifield Facility. We retain a strong interest in a relativistic heavy-ion collider in the 10 x 10 GeV/nuclear energy range. The ideas for such a facility, described in last year's report, have been modified to utilize the HHIRF 25 MV tandem accelerator as the first stage. Finally, the report concludes with some general information on publications, Division activities, and personnel changes.

  6. IUPAC Periodic Table of Isotopes for the Educational Community

    SciTech Connect (OSTI)

    Holden N. E.; Holden,N.E.; Coplen,T.B.

    2012-07-15T23:59:59.000Z

    John Dalton first proposed the concept of atomic weights of the elements in the first decade of the nineteenth century. These atomic weights of the chemical elements were thought of as constants of nature, similar to the speed of light. Dmitri Mendeleev arranged the atomic weights of the elements in ascending order of value and used the systematic variation of their chemical properties to produce his Periodic Table of the Elements in 1869. Measurement of atomic weight values became an important chemical activity for a century and a half. Theodore Richards received a Noble Prize for his work in this area. In 1913, Fredrick Soddy found a species of radium, which had an atomic weight value of 228, compared to the familiar radium gas value of 226. Soddy coined the term 'isotope' (Greek for 'in the same place') to account for this second atomic weight value in the radium position of the Periodic Table. Both of these isotopes of radium are radioactive. Radioactive isotopes are energetically unstable and will decay (disintegrate) over time. The time it takes for one half of a sample of a given radioactive isotope to decay is the half-life of that isotope. In addition to having different atomic weight values, radium-226 and radium-228 also have different half-life values. Around the same time as Soddy's work, J.J. Thomson (discoverer of the electron) identified two stable (non-radioactive) isotopes of the same element, neon. Over the next 40 years, the majority of the known chemical elements were found to have two or more stable (or long-lived radioactive isotopes that contribute significantly to the determination of the atomic weights of the elements).

  7. THE OPTICAL GRAVITATIONAL LENSING EXPERIMENT. THE CATALOG OF PERIODIC VARIABLE STARS IN THE GALACTIC BULGE. I. PERIODIC VARIABLES IN THE CENTER OF THE BAADE'S WINDOW.

    E-Print Network [OSTI]

    A. UDALSKI; M. KUBIAK; M. SZYMANSKI; J. KALUZNY; M. MATEO; W. KRZEMINSKI

    1995-01-09T23:59:59.000Z

    This paper is the first part of the Catalog of Periodic Variable Stars in the Galactic bulge. The Catalog is based on observations collected during the OGLE microlensing search. 213 periodic variable stars brighter than I=18 mag: 31 pulsating, 116 eclipsing and 66 miscellaneous type variables from the Baade's Window BWC field are presented. Periodic variable stars from remaining 20 fields will be presented in similar form in the next parts of the Catalog. The Catalog as well as observations of all periodic variable objects are available to astronomical community over the Internet network.

  8. A renewal theory approach to periodic copolymers with adsorption

    E-Print Network [OSTI]

    Francesco Caravenna; Giambattista Giacomin; Lorenzo Zambotti

    2007-10-24T23:59:59.000Z

    We consider a general model of a heterogeneous polymer chain fluctuating in the proximity of an interface between two selective solvents. The heterogeneous character of the model comes from the fact that the monomer units interact with the solvents and with the interface according to some charges that they carry. The charges repeat themselves along the chain in a periodic fashion. The main question concerning this model is whether the polymer remains tightly close to the interface, a phenomenon called localization, or whether there is a marked preference for one of the two solvents, thus yielding a delocalization phenomenon. In this paper, we present an approach that yields sharp estimates for the partition function of the model in all regimes (localized, delocalized and critical). This, in turn, makes possible a precise pathwise description of the polymer measure, obtaining the full scaling limits of the model. A key point is the closeness of the polymer measure to suitable Markov renewal processes, Markov renewal theory being one of the central mathematical tools of our analysis.

  9. Periodically-driven quantum matter: the case of resonant modulations

    E-Print Network [OSTI]

    N. Goldman; J. Dalibard; M. Aidelsburger; N. R. Cooper

    2015-03-06T23:59:59.000Z

    Quantum systems can show qualitatively new forms of behavior when they are driven by fast time-periodic modulations. In the limit of large driving frequency, the long-time dynamics of such systems can often be described by a time-independent effective Hamiltonian, which is generally identified through a perturbative treatment. Here, we present a general formalism that describes time-modulated physical systems, in which the driving frequency is large, but resonant with respect to energy spacings inherent to the system at rest. Such a situation is currently exploited in optical-lattice setups, where superlattice (or Wannier-Stark-ladder) potentials are resonantly modulated so as to control the tunneling matrix elements between lattice sites, offering a powerful method to generate artificial fluxes for cold-atom systems. The formalism developed in this work identifies the basic ingredients needed to generate interesting flux patterns and band structures using resonant modulations. Additionally, our approach allows for a simple description of the micro-motion underlying the dynamics; we illustrate its characteristics based on diverse dynamic-lattice configurations. It is shown that the impact of the micro-motion on physical observables strongly depends on the implemented scheme, suggesting that a theoretical description in terms of the effective Hamiltonian alone is generally not sufficient to capture the full time-evolution of the system.

  10. The periodic standing-wave approximation: post-Minkowski computation

    E-Print Network [OSTI]

    Christopher Beetle; Benjamin Bromley; Napoleón Hernández; Richard H. Price

    2007-08-08T23:59:59.000Z

    The periodic standing wave method studies circular orbits of compact objects coupled to helically symmetric standing wave gravitational fields. From this solution an approximation is extracted for the strong field, slowly inspiralling motion of black holes and binary stars. Previous work on this model has dealt with nonlinear scalar models, and with linearized general relativity. Here we present the results of the method for the post-Minkowski (PM) approximation to general relativity, the first step beyond linearized gravity. We compute the PM approximation in two ways: first, via the standard approach of computing linearized gravitational fields and constructing from them quadratic driving sources for second-order fields, and second, by solving the second-order equations as an ``exact'' nonlinear system. The results of these computations have two distinct applications: (i) The computational infrastructure for the ``exact'' PM solution will be directly applicable to full general relativity. (ii) The results will allow us to begin supplying initial data to collaborators running general relativistic evolution codes.

  11. Physics division. Progress report for period ending September 30, 1996

    SciTech Connect (OSTI)

    Ball, S.J. [ed.

    1997-04-01T23:59:59.000Z

    This report covers the research and development activities of the Physics Division for the 1995 and 1996 fiscal years, beginning October 1, 1994, and ending September 30, 1996. The activities of the Division continue to be concentrated in the areas of experimental nuclear physics, experimental atomic physics, and theoretical nuclear and atomic physics. In addition, there are smaller programs in plasma diagnostics and data compilation and evaluation. During the period of this report, there has been considerable success in bringing the Holifield Radioactive Ion Beam Facility (HRIBF) into routine operation. The budgets of the nuclear physics portion of the Division have increased each year in nearly all areas, and several new members have been added to the Division research and development staff. On August 30, 1996, the HRIBF successfully accelerated its first radioactive ion beams, {sup 69}As and {sup 70}As. Prior to this, the heart of the facility, the RIB injector system, was completed, including installation of a remote handling system for the target/ion source assembly. Target and ion source development is likely to be the technical key to success of the HRIBF. We have expanded our efforts in those development areas. Of special note is the development of highly permeable composite targets which have now been shown to allow release of difficult-to-produce radioactive ions such as {sup 17,18}F. A summary of the HRIBF work is provided in Chapter 1, along with supporting activities of the Joint Institute for Heavy Ion Research.

  12. Periodic solutions of even Hamiltonian systems on Thomas Bartsch & ZhiQiang Wang 1

    E-Print Network [OSTI]

    Wang, Zhi-Qiang

    Periodic solutions of even Hamiltonian systems on the torus Thomas Bartsch & Zhi­Qiang Wang 1 and their hospitality. #12; 2 Thomas Bartsch & Zhi­Qiang Wang 1 Introduction Hamiltonian systems with periodic

  13. Geothermal R and D Project report for period April 1, 1976 to...

    Open Energy Info (EERE)

    report for period April 1, 1976 to June 30, 1976 Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Geothermal R and D Project report for period April 1,...

  14. The Near-infrared Period-luminosity Relations of Cepheids in the Large Magellanic Cloud

    E-Print Network [OSTI]

    Mahzooni, Salma

    2011-08-08T23:59:59.000Z

    We present near-infrared (J & Ks) observations of Cepheids in the Large Magellanic Cloud. The goals of these observations are to better characterize the Cepheid Period-Luminosity relation at these wavelengths, especially for periods below 10 days...

  15. Wave propagation and instabilities in monolithic and periodically structured elastomeric materials undergoing large deformations

    E-Print Network [OSTI]

    Wave propagation and instabilities in monolithic and periodically structured elastomeric materials; revised manuscript received 3 October 2008; published 14 November 2008 Wave propagation in elastomeric states can influence wave propagation and hence interpretation of data. In the case of periodically

  16. A New Methodology for Frequency Domain Analysis of Wave Energy Converters with Periodically Varying Physical Parameters

    E-Print Network [OSTI]

    Victoria, University of

    A New Methodology for Frequency Domain Analysis of Wave Energy Converters with Periodically Varying Methodology for Frequency Domain Analysis of Wave Energy Converters with Periodically Varying Physical of Mechanical Engineering) ABSTRACT Within a wave energy converter's operational bandwidth, device operation

  17. A STUDY OF THE SHORTEST-PERIOD PLANETS FOUND WITH KEPLER

    E-Print Network [OSTI]

    Kotson, Michael C.

    We present the results of a survey aimed at discovering and studying transiting planets with orbital periods shorter than one day (ultra-short-period, or USP, planets), using data from the Kepler spacecraft. We computed ...

  18. PERIODIC SOLUTIONS WITH NONCONSTANT SIGN IN ABEL EQUATIONS OF THE SECOND KIND

    E-Print Network [OSTI]

    Politècnica de Catalunya, Universitat

    PERIODIC SOLUTIONS WITH NONCONSTANT SIGN IN ABEL EQUATIONS OF THE SECOND KIND JOSEP M. OLM, XAVIER, is equivalent. Key words and phrases. Abel differential equations, periodic solutions. 1 #12;2 JOSEP M. OLM

  19. LS Note 340 - New Design for a 27-mm Period Undulator for the...

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

    Design for a 27-mm Period Undulator for the MBA Lattice Melike Abliz, John Grimmer, Isaac Vasserman Abstract By further optimizing the dimensions of a 27-mm period undulator's...

  20. Taxonomy of periodic nets and the design of materials Olaf Delgado-Friedrichs,a

    E-Print Network [OSTI]

    Yaghi, Omar M.

    Taxonomy of periodic nets and the design of materials Olaf Delgado-Friedrichs,a Michael O classification (taxonomy) of polyhedra and periodic nets that is appropriate for identifying the structures

  1. Lyapunov instability for a periodic Lorentz gas thermostated by deterministic scattering K. Rateitschak*

    E-Print Network [OSTI]

    Klages, Rainer

    Lyapunov instability for a periodic Lorentz gas thermostated by deterministic scattering K assess the nonlinear properties of this dynamical system by numerically calculating its Lyapunov exponents. Based on a revised method for computing Lyapunov exponents, which employs periodic

  2. Steady-State Electrical Conduction in the Periodic Lorentz Gas

    E-Print Network [OSTI]

    N. I. Chernov; G. L. Eyink; J. L. Lebowitz; Ya. G. Sinai

    1993-02-08T23:59:59.000Z

    We study nonequilibrium steady states in the Lorentz gas of periodic scatterers when an external field is applied and the particle kinetic energy is held fixed by a ``thermostat'' constructed according to Gauss' principle of least constraint (a model problem previously studied numerically by Moran and Hoover). The resulting dynamics is reversible and deterministic, but does not preserve Liouville measure. For a sufficiently small field, we prove the following results: (1) existence of a unique stationary, ergodic measure obtained by forward evolution of initial absolutely continuous distributions, for which the Pesin entropy formula and Young's expression for the fractal dimension are valid; (2) exact identity of the steady-state thermodyamic entropy production, the asymptotic decay of the Gibbs entropy for the time-evolved distribution, and minus the sum of the Lyapunov exponents; (3) an explicit expression for the full nonlinear current response (Kawasaki formula); and (4) validity of linear response theory and Ohm's transport law, including the Einstein relation between conductivity and diffusion matrices. Results (2) and (4) yield also a direct relation between Lyapunov exponents and zero-field transport (=diffusion) coefficients. Although we restrict ourselves here to dimension $d=2,$ the results carry over to higher dimensions and to some other physical situations: e.g. with additional external magnetic fields. The proofs use a well-developed theory of small perturbations of hyperbolic dynamical systems and the method of Markov sieves, an approximation of Markov partitions. In our context we discuss also the van Kampen objection to linear response theory, which, we point out, overlooks the ``structural stability'' of strongly hyperbolic flows.

  3. RF properties of periodic accelerating structures for linear colliders

    SciTech Connect (OSTI)

    Wang, J.W.

    1989-07-01T23:59:59.000Z

    With the advent of the SLAC electron-positron linear collider (SLC) in the 100 GeV center-of-mass energy range, research and development work on even higher energy machines of this type has started in several laboratories in the United States, Europe, the Soviet Union and Japan. These linear colliders appear to provide the only promising approach to studying e/sup /plus//e/sup /minus// physics at center-of-mass energies approaching 1 TeV. This thesis concerns itself with the study of radio frequency properties of periodic accelerating structures for linear colliders and their interaction with bunched beams. The topics that have been investigated are: experimental measurements of the energy loss of single bunches to longitudinal modes in two types of structures, using an equivalent signal on a coaxial wire to simulate the beam; a method of canceling the energy spread created within a single bunch by longitudinal wakefields, through appropriate shaping of the longitudinal charge distribution of the bunch; derivation of the complete transient beam-loading equation for a train of bunches passing through a constant-gradient accelerator section, with application to the calculation and minimization of multi-bunch energy spread; detailed study of field emission and radio frequency breakdown in disk-loaded structures at S-, C- and X-band frequencies under extremely high-gradient conditions, with special attention to thermal effects, radiation, sparking, emission of gases, surface damage through explosive emission and its possible control through RF-gas processing. 53 refs., 49 figs., 9 tabs.

  4. Direct Energy Conversion Fission Reactor for the period December 1, 1999 through February 29, 2000

    SciTech Connect (OSTI)

    Brown, L.C.

    2000-03-20T23:59:59.000Z

    OAK B135 Direct Energy Conversion Fission Reactor for the period December 1, 1999 through February 29, 2000

  5. DIRECT ENERGY CONVERSION FISSION REACTOR FOR THE PERIOD JUNE 1, 2001 THROUGH SEPTEMBER 30, 2001

    SciTech Connect (OSTI)

    L.C. BROWN

    2001-09-30T23:59:59.000Z

    OAK-B135 DIRECT ENERGY CONVERSION FISSION REACTOR FOR THE PERIOD JUNE 1, 2001 THROUGH SEPTEMBER 30, 2001

  6. Fabrication of 200 nm period nanomagnet arrays using interference lithography and a negative resist

    E-Print Network [OSTI]

    Murphy, Thomas E.

    period array of holes in a positive resist and electrodeposited magnetic nickel and cobalt pillars.4 We

  7. Solutions to Test 1 Review Problems 1. Here are two sound waves. Identify which is periodic. For the periodic wave, sketch a

    E-Print Network [OSTI]

    Hall, Rachel W.

    in Hz and BPM. Is the frequency within the range of human hearing? Answer. The periodic wave frequency is 1/0.01 = 100 Hz = 6000 BPM. 2. Functions. (a) For each function, determine whether and frequency =3 BPM (2) amplitude = 10 and fundamental period = 0.005 seconds. Answer. (1) since 3 BPM = 180 Hz

  8. Entrainment to Periodic Initiation and Transition Rates in a Computational Model for Gene Translation

    E-Print Network [OSTI]

    Margaliot, Michael

    , the biological system must entrain or phase-lock to the periodic excitation. Entrainment is also important entrain or phase-lock to the periodic excitation. In other words, in response to a periodic excitation in biological systems (sometimes called phase locking [2]) and, more generally, biological oscillators

  9. Entrainment and termination of reentrant wave propagation in a periodically stimulated ring of excitable media

    E-Print Network [OSTI]

    Glass, Leon

    Entrainment and termination of reentrant wave propagation in a periodically stimulated ring periodic stimulation of a class of cardiac arrhythmias caused by reentrant wave propagation in the human wave of circulation. In analogy with earlier results found from the periodic stimulation

  10. Year Budget Period 1 5/1/2012 4/30/2013

    E-Print Network [OSTI]

    Kay, Mark A.

    /1/2014 ­ 4/30/2015 Year Budget Period 4 5/1/2015 date of the budget period funded by the FY15 funds � The Final Financial of the end date of the last budget period funded by the FY14 funds � Departments

  11. Detection and discrimination of the periodicity of prime numbers by discrete Fourier transform

    E-Print Network [OSTI]

    Levente Csoka

    2015-01-27T23:59:59.000Z

    A novel representation of a quasi-periodic modified von Mangoldt function L(n) on prime numbers and its decomposition into Fourier series has been investigated. We focus on some particular quantities characterizing the modified von Mangoldt function. The results indicate that prime number progression can be decomposed into periodic sequences. The main approach is to decompose it into sin or cosine function. Basically, it is applied to extract hidden periodicities in seemingly quasi periodic prime function. Numerical evidences were provided to confirm the periodic distribution of primes.

  12. The periods of the intermediate polar RX J0153.3+7446

    E-Print Network [OSTI]

    A. J. Norton; J. D. Tanner

    2005-12-06T23:59:59.000Z

    We present the first optical photometry of the counterpart to the candidate intermediate polar RX J0153.3+7446. This reveals an optical pulse period of 2333s +/- 5s. Reanalysis of the previously published ROSAT X-ray data reveals that the true X-ray pulse period is probably 1974s +/- 30s, rather than the 1414 s previously reported. Given that the previously noted orbital period of the system is 3.94 h, we are able to identify the X-ray pulse period with the white dwarf spin period and the optical pulse period with the rotation period of the white dwarf in the binary reference frame, as commonly seen in other intermediate polars. We thus confirm that RX J0153.3+7446 is indeed a typical intermediate polar.

  13. A Low-Cost, High-Efficiency Periodic Flow Gas Turbine for Distributed Energy Generation

    SciTech Connect (OSTI)

    Dr. Adam London

    2008-06-20T23:59:59.000Z

    The proposed effort served as a feasibility study for an innovative, low-cost periodic flow gas turbine capable of realizing efficiencies in the 39-48% range.

  14. EIS-0466: Re-opening of Public Scoping Period and Announcement...

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

    Public Scoping Meetings Continued Operation of the Sandia National Laboratories, New Mexico Comment Period Ends: 9122011 Submit Comments to: Ms. Jeanette Norte NNSA Sandia...

  15. Measuring the rotation period distribution of field M-dwarfs with Kepler

    E-Print Network [OSTI]

    McQuillan, Amy; Mazeh, Tsevi

    2013-01-01T23:59:59.000Z

    We have analysed 10 months of public data from the Kepler space mission to measure rotation periods of main-sequence stars with masses between 0.3 and 0.55 M_sun. To derive the rotational period we introduce the autocorrelation function and show that it is robust against phase and amplitude modulation and residual instrumental systematics. Of the 2483 stars examined, we detected rotation periods in 1570 (63.2%), representing an increase of a factor ~ 30 in the number of rotation period determination for field M-dwarfs. The periods range from 0.37-69.7 days, with amplitudes ranging from 1.0-140.8 mmags. The rotation period distribution is clearly bimodal, with peaks at ~ 19 and ~ 33 days, hinting at two distinct waves of star formation, a hypothesis that is supported by the fact that slower rotators tend to have larger proper motions. The two peaks of the rotation period distribution form two distinct sequences in period-temperature space, with the period decreasing with increasing temperature, reminiscent of ...

  16. DOE Extends Comment Period on Notice of Inquiry Under the Energy...

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

    Act of 2007, which implements the Convention on Supplementary Compensation for Nuclear Damage. The public comment period will be extended to October 27, 2010. The signed extension...

  17. EIS-0299: Notice of Extension of Comment Period for the Environmental...

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

    Impact Statement Proposed Production of Plutonium-238 for Use in Advanced Radioisotope Power Systems for Future Space Missions DOE is extending the public scoping period on the...

  18. EIS-0385: Notice to Extend the Public Scoping Period and Reschedule...

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

    to Extend the Public Scoping Period and Reschedule Public Scoping Meetings Strategic Petroleum Reserve Due to the extraordinary circumstances created by Hurricane Katrina in the...

  19. Attractiveness of periodic orbits in parametrically forced systems with time-increasing friction

    E-Print Network [OSTI]

    Attractiveness of periodic orbits in parametrically forced systems with time-increasing friction-dimensional systems subject to a periodic force and study numer- ically how a time-varying friction affects oscillator in the presence of friction. We find that, if the damping coefficient increases in time up

  20. Efficient Solvers for Nonlinear Time-Periodic Eddy Current F. Bachinger

    E-Print Network [OSTI]

    Schoeberl, Joachim

    Efficient Solvers for Nonlinear Time-Periodic Eddy Current Problems F. Bachinger U. Langer J. Sch-periodic eddy current problems, ranging from the description of the nonlinearity to an efficient solution setup, the magnetic field and the thereby generated eddy currents hardly penetrate into conducting

  1. Approximations to wave propagation through doubly-periodic arrays of scatterers

    E-Print Network [OSTI]

    Approximations to wave propagation through doubly-periodic arrays of scatterers P. Mc Abstract The propagation of waves through a doubly-periodic array of identical rigid scatterers of matched asymptotic expansions is used to obtain the dispersion relation corresponding to wave propagation

  2. Periodic Cooling of Bird Eggs Reduces Embryonic Growth Efficiency Christopher R. Olson*

    E-Print Network [OSTI]

    Vleck, Carol

    927 Periodic Cooling of Bird Eggs Reduces Embryonic Growth Efficiency Christopher R. Olson* Carol M, periodic cooling occurs when the in- cubating adult leaves the nest to forage, but the effects of pe- riodic cooling on embryo growth, yolk use, and metabolism are poorly known. To address this question, we

  3. Stable all-optical limiting in nonlinear periodic structures. I. Analysis

    E-Print Network [OSTI]

    Pelinovsky, Dmitry

    Stable all-optical limiting in nonlinear periodic structures. I. Analysis Dmitry Pelinovsky consider propagation of coherent light through a nonlinear periodic optical structure consisting of two al-dependent dy- namics. We find the domain for existence of true all-optical limiting when the input

  4. Multi-Period Production Capacity Planning for Integrated Product and Production System Design*

    E-Print Network [OSTI]

    Saitou, Kazuhiro "Kazu"

    Multi-Period Production Capacity Planning for Integrated Product and Production System Design* Emre.ac.uk kazu@umich.edu .Abstract ­ This paper presents a simulation-based method to aid multi-period production capacity planning by quantifying the trade-off between product quality and production cost. The product

  5. Covariation of coastal water temperature and microbial pollution at interannual to tidal periods

    E-Print Network [OSTI]

    Winant, Clinton D.

    Covariation of coastal water temperature and microbial pollution at interannual to tidal periods, California, USA Daniel B. Lluch-Cota Centro de Investigaciones Biologicas del Noroeste, La Paz, Mexico-period cooling are coincident with elevated levels of microbial pollution in the surf zone. This relationship can

  6. Instability inside a rotating gas cylinder subject to axial periodic strain Y. Duguet,a

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    of viscous flow inside a closed circular cylinder rotating about its axis, periodically compressed by meansInstability inside a rotating gas cylinder subject to axial periodic strain Y. Duguet,a J. F. Scott are known to support inertial oscillations whose frequencies are less than twice the basic rotation rate.1

  7. Commensurability effects induced by a periodic array of nanoscale anti-dots in Nb superconductor

    E-Print Network [OSTI]

    Metlushko, Vitali

    Commensurability effects induced by a periodic array of nanoscale anti-dots in Nb superconductor A. PACS: 74.25.Ha; 74.76.)w Keywords: Nanostructures; Anti-dots; Commensurability 1. Introduction atomic layers on periodical substrate [5], magnetic bubble arrays [6] and the magnetically induced Wigner

  8. Operator Non-Availability Periods N. Brauner, G. Finke, V. Lehoux-Lebacque, C. Rapine

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Operator Non-Availability Periods N. Brauner, G. Finke, V. Lehoux-Lebacque, C. Rapine C. Potts, V. Strusevich July 27, 2007 version-3 Abstract. In scheduling literature, the notion of machine non-availability special periods (the week-ends, holidays, vacations) where the chemists are not available. However, human

  9. Evolution of obesity prevalence in France: An Age-Period-Cohort analysis

    E-Print Network [OSTI]

    Evolution of obesity prevalence in France: An Age-Period- Cohort analysis Authors : Ibrahima Diouf1, France. Running title: Age-Period-Cohort analysis for obesity prevalence in France Address in the prevalence of obesity has been reported in France since 1990. We investigated the impact of birth cohort

  10. Guide to Library Resources for English 110 Finding Books, Periodicals, Microforms and Media

    E-Print Network [OSTI]

    Cakoni, Fioralba

    the Library of Congress Classification System. Each book (or bound volume of a periodical) is assigned a call1 Guide to Library Resources for English 110 Finding Books, Periodicals, Microforms and Media held by the University of Delaware Library, you may wish to start by searching DELCAT or WorldCat Local

  11. ON THE EXISTENCE OF STEADY PERIODIC CAPILLARY-GRAVITY STRATIFIED WATER WAVES

    E-Print Network [OSTI]

    points for steady water waves. The condition which ensures the lack of stagnation points for 1991ON THE EXISTENCE OF STEADY PERIODIC CAPILLARY-GRAVITY STRATIFIED WATER WAVES DAVID HENRY AND BOGDAN­VASILE MATIOC Abstract. We prove the existence of small steady periodic capillary-gravity water waves

  12. Program Director/Principal Investigator (Last, First, Middle): DETAILED BUDGET FOR INITIAL BUDGET PERIOD

    E-Print Network [OSTI]

    Ungerleider, Leslie G.

    Program Director/Principal Investigator (Last, First, Middle): DETAILED BUDGET FOR INITIAL BUDGET SUBTOTAL DIRECT COSTS FOR INITIAL BUDGET PERIOD (Item 7a, Face Page) $ CONSORTIUM/CONTRACTUAL COSTS FACILITIES AND ADMINISTRATIVE COSTS TOTAL DIRECT COSTS FOR INITIAL BUDGET PERIOD $ PHS 398 (Rev. 6/09) Page

  13. Program Director/Principal Investigator (Last, First, Middle): DETAILED BUDGET FOR INITIAL BUDGET PERIOD

    E-Print Network [OSTI]

    Baker, Chris I.

    Program Director/Principal Investigator (Last, First, Middle): DETAILED BUDGET FOR INITIAL BUDGET SUBTOTAL DIRECT COSTS FOR INITIAL BUDGET PERIOD (Item 7a, Face Page) $ CONSORTIUM/CONTRACTUAL COSTS FACILITIES AND ADMINISTRATIVE COSTS TOTAL DIRECT COSTS FOR INITIAL BUDGET PERIOD $ Page Form Page 4 PHS 398

  14. Propagation of travelling waves in sub-excitable systems driven by noise and periodic forcing

    E-Print Network [OSTI]

    Fen-Ni Si; Quan-Xing Liu; Jin-Zhong Zhang; Lu-Qun Zhou

    2007-11-23T23:59:59.000Z

    It has been reported that traveling waves propagate periodically and stably in sub-excitable systems driven by noise [Phys. Rev. Lett. \\textbf{88}, 138301 (2002)]. As a further investigation, here we observe different types of traveling waves under different noises and periodic forces, using a simplified Oregonator model. Depending on different noises and periodic forces, we have observed different types of wave propagation (or their disappearance). Moreover, the reversal phenomena are observed in this system based on the numerical experiments in the one-dimensional space. As an explanation, we regard it as the effect of periodic forces. Thus, we give qualitative explanations to how reversal phenomena stably appear, which seem to arise from the mixing function of the periodic force and the noise. And the output period and three velocities (the normal, the positive and the negative) of the travelling waves are defined and their relationship with the periodic forces, along with the types of waves, are also studied in sub-excitable system under a fixed noise intensity.

  15. Formation of laser-induced periodic surface structures on niobium by femtosecond laser irradiation

    SciTech Connect (OSTI)

    Pan, A.; Dias, A.; Gomez-Aranzadi, M.; Olaizola, S. M. [CIC microGUNE, Goiru Kalea 9 Polo Innovación Garaia, 20500 Arrasate-Mondragón (Spain); CEIT-IK4 and Tecnun, University of Navarra, Manuel Lardizábal 15, 20018 San Sebastián (Spain); Rodriguez, A. [CIC microGUNE, Goiru Kalea 9 Polo Innovación Garaia, 20500 Arrasate-Mondragón (Spain)

    2014-05-07T23:59:59.000Z

    The surface morphology of a Niobium sample, irradiated in air by a femtosecond laser with a wavelength of 800?nm and pulse duration of 100 fs, was examined. The period of the micro/nanostructures, parallel and perpendicularly oriented to the linearly polarized fs-laser beam, was studied by means of 2D Fast Fourier Transform analysis. The observed Laser-Induced Periodic Surface Structures (LIPSS) were classified as Low Spatial Frequency LIPSS (periods about 600?nm) and High Spatial Frequency LIPSS, showing a periodicity around 300?nm, both of them perpendicularly oriented to the polarization of the incident laser wave. Moreover, parallel high spatial frequency LIPSS were observed with periods around 100?nm located at the peripheral areas of the laser fingerprint and overwritten on the perpendicular periodic gratings. The results indicate that this method of micro/nanostructuring allows controlling the Niobium grating period by the number of pulses applied, so the scan speed and not the fluence is the key parameter of control. A discussion on the mechanism of the surface topology evolution was also introduced.

  16. The Lyapunov function for Schrödinger operators with a periodic 2x2 matrix potential

    E-Print Network [OSTI]

    Andrei Badanin; Jochen Brüning; Evgeny Korotyaev

    2005-08-29T23:59:59.000Z

    We consider the Schr\\"odinger operator on the real line with a 2x2 matrix valued 1-periodic potential. The spectrum of this operator is absolutely continuous and consists of intervals separated by gaps. We define a Lyapunov function which is analytic on a two sheeted Riemann surface. On each sheet, the Lyapunov function has the same properties as in the scalar case, but it has branch points, which we call resonances. We prove the existence of real as well as non-real resonances for specific potentials. We determine the asymptotics of the periodic and anti-periodic spectrum and of the resonances at high energy. We show that there exist two type of gaps: 1) stable gaps, where the endpoints are periodic and anti-periodic eigenvalues, 2) unstable (resonance) gaps, where the endpoints are resonances (i.e., real branch points of the Lyapunov function). We also show that periodic and anti-periodic spectrum together determine the spectrum of the matrix Hill operator.

  17. Performance Period

    Office of Environmental Management (EM)

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

  18. Reconstruction of spatial patterns of climatic anomalies during the medieval warm period (AD 900-1300)

    SciTech Connect (OSTI)

    Diaz, H.F. [National Oceanic and Atmospheric Administration, Boulder, CO (United States). Environmental Research Labs.; Hughes, M.K. [Arizona Univ., Tucson, AZ (United States). Lab. of Tree-Ring Research

    1992-12-31T23:59:59.000Z

    The workshop will focus on climatic variations during the Medieval Warm Period or Little Climatic Optimum. The nominal time interval assigned to this period is AD 900--1300, but climate information available during the century or two preceding and following this episode is welcome. The aims of the workshop will be to: examine the available evidence for the existence of this episode; assess the spatial and temporal synchronicity of the climatic signals; discuss possible forcing mechanisms; and identify areas and paleoenvironmental records where additional research efforts are needed to improve our knowledge of this period. This document consists of abstracts of eighteen papers presented at the meeting.

  19. Cooperative accumulation of coherent undulator radiation emitted from periodic electron bunches

    SciTech Connect (OSTI)

    Seo, Y. H. [Department of Electrophysics, Kwangwoon University, Seoul 139-701 (Korea, Republic of)

    2013-01-15T23:59:59.000Z

    Cavity build-up of coherent undulator synchrotron radiation emitted by periodic electron bunches is investigated. At the optimal off-grazing resonance, the bunch slippage relative to the radiation pulse introduces an initial transient period during which radiation accumulates cooperatively as if it is emitted by a single bunch. The power growth during the period is quadratic to the number of bunches. The number of cooperative bunches is {approx}2 Script-Small-L {sub s}{sup 2}, where Script-Small-L {sub s} denotes the slippage length in units of the resonant wavelength.

  20. Homogenized dynamic constitutive relation for Bloch-wave propagation in periodic composites: structure and symmetries

    E-Print Network [OSTI]

    Nemat-Nasser, Sia

    Homogenized dynamic constitutive relation for Bloch-wave propagation in periodic composites composites has been made only very recently. Here we discuss the explicit form of the effective dynamic properties of composites with tailored microstructure necessitates a systematic homogenization procedure

  1. Use and Finance BiAnnual Reporting Form Reporting Period: July 2013 through December 2013

    E-Print Network [OSTI]

    Papalambros, Panos

    Use and Finance BiAnnual Reporting Form Reporting Period: July 2013 through December 2013 $ Other (Professional Fees, Telecommunications, Moving) 538,200$ Other (Finance resources services center will be established for finance and human resources transaction processing activities

  2. Dental analysis of Classic period population variability in the Maya area 

    E-Print Network [OSTI]

    Scherer, Andrew Kenneth

    2005-02-17T23:59:59.000Z

    In this dissertation I examine population history and structure in the Maya area during the Classic period (A.D. 250-900). Within the Maya area, archaeologists have identified regional variation in material culture between ...

  3. Effect of availability on multi-period planning of subsea oil and gas production systems

    E-Print Network [OSTI]

    Ruiz Vasquez, Karla Liliana

    2009-05-15T23:59:59.000Z

    subsea equipment downtime of approximately 7%. As a result, new production planning is accomplished in the effective work period, which will be beneficial in financial risk decisions such as a government’s deliverability contracts....

  4. Periodicity in Class II methanol masers in high mass star forming regions

    E-Print Network [OSTI]

    Goedhart, S; Gaylard, M J; van der Walt, D J

    2013-01-01T23:59:59.000Z

    We report the results of 10 years of monitoring of six regularly varying 6.7 GHz methanol masers using the Hartebeesthoek 26m telescope. Observations were done at intervals of 1--2 weeks, with faster sampling during flaring episodes. Four of the sources were also monitored at 12.2 GHz and show correlated variations. We find the Lomb-Scargle periodogram to be the most sensitive method to search for periodicity but possibly prone to false detections. Periods range from 132.8 days (with 26 cycles observed) to 509 days (with 7 cycles observed). Five of the sources show arguably periodic variations, while G331.13-0.24 shows strong periodicity in one peak, with large and variable delays in other peaks.

  5. Reduced ventilation and enhanced magnitude of the deep Pacific carbon pool during the last glacial period

    E-Print Network [OSTI]

    Skinner, L.; McCave, I. N.; Carter, L.; Fallon, S.; Scrivner, A. E.; Primeau, F.

    2014-12-15T23:59:59.000Z

    It has been proposed that the ventilation of the deep Pacific carbon pool was not significantly reduced during the last glacial period, posing a problem for canonical theories of glacial–interglacial CO2 change. However, using radiocarbon dates...

  6. The effect of disorder on the wave propagation in one-dimensional periodic optical systems

    E-Print Network [OSTI]

    Yuri A. Godin; Stanislav Molchanov; Boris Vainberg

    2011-10-18T23:59:59.000Z

    The influence of disorder on the transmission through periodic waveguides is studied. Using a canonical form of the transfer matrix we investigate dependence of the Lyapunov exponent $\\gamma$ on the frequency $\

  7. Simulation of adiabatic thermal beams in a periodic solenoidal magnetic focusing field

    E-Print Network [OSTI]

    Barton, T. J.

    Self-consistent particle-in-cell simulations are performed to verify earlier theoretical predictions of adiabatic thermal beams in a periodic solenoidal magnetic focusing field [ K.?R. Samokhvalova, J. Zhou and C. Chen ...

  8. Periodic orbit bifurcations as an ionization mechanism: The bichromatically driven hydrogen atom

    E-Print Network [OSTI]

    S. Huang; C. Chandre; T. Uzer

    2007-12-17T23:59:59.000Z

    We investigate the multiphoton ionization of hydrogen driven by a strong bichromatic microwave field. In a regime where classical and quantum simulations agree, periodic orbit analysis captures the mechanism: Through the linear stability of periodic orbits we match qualitatively the variation of experimental ionization rates with control parameters such as the amplitudes of the two modes of the field or their relative phases. Moreover, we discuss an empirical formula which reproduces quantum simulations to a high degree of accuracy. This quantitative agreement shows the mechanism by which short periodic orbits organize the dynamics in multiphoton ionization. We also analyze the effect of longer pulse durations. Finally we compare our results with those based on the peak amplitude rule. Both qualitative and quantitative analyses are implemented for different mode locked fields. In parameter space, the localization of the period doubling and halving allows one to predict the set of parameters (amplitudes and phase lag) where ionization occurs.

  9. Einstein@Home search for periodic gravitational waves in LIGO S4 data

    E-Print Network [OSTI]

    Zucker, Michael E.

    A search for periodic gravitational waves, from sources such as isolated rapidly spinning neutron stars, was carried out using 510 h of data from the fourth LIGO science run (S4). The search was for quasimonochromatic waves ...

  10. Einstein@Home search for periodic gravitational waves in early S5 LIGO data

    E-Print Network [OSTI]

    Barsotti, Lisa

    This paper reports on an all-sky search for periodic gravitational waves from sources such as deformed isolated rapidly spinning neutron stars. The analysis uses 840 hours of data from 66 days of the fifth LIGO science run ...

  11. CO2 Abatement in the UK Power Sector: Evidence from the EU ETS Trial Period

    E-Print Network [OSTI]

    Ellerman, A. Denny

    2008-01-01T23:59:59.000Z

    This paper provides an empirical assessment of CO2 emissions abatement in the UK power sector during the trial period of the EU ETS. Using an econometrically estimated model of fuel switching, it separates the impacts of ...

  12. Enhanced radiation tolerance in nitride multilayered nanofilms with small period-thicknesses

    SciTech Connect (OSTI)

    Hong Mengqing; Ren Feng; Zhang Hongxiu; Xiao Xiangheng; Tian Canxin; Fu Dejun; Jiang Changzhong [School of Physics and Technology and Center for Electron Microscopy, Wuhan University, Wuhan 430072 (China); Yang Bing [School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072 (China); Wang Yongqiang [Materials Science and Technology Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

    2012-10-08T23:59:59.000Z

    This paper demonstrates a substantial enhancement in radiation tolerance for small period-thickness of CrN/AlTiN multilayered nanofilms. CrN/AlTiN multilayered nanofilms with period-thicknesses of 3, 5, 7, and 9 nm were irradiated by 190 keV Ar{sup +} ions to fluences ranging from 1 to 5 Multiplication-Sign 10{sup 16} ions/cm{sup 2}. Nanofilm with 3 nm period-thickness begins to be amorphized under 5 Multiplication-Sign 10{sup 16} ions/cm{sup 2}, while those with larger period-thicknesses are amorphized under 3 Multiplication-Sign 10{sup 16} ions/cm{sup 2}. Our results show that multilayered ceramic nanofilms are potential radiation tolerant materials with good properties. The interfaces in the multilayered nanofilms act as good sinks to absorb the radiation-induced defects.

  13. Effective slip boundary conditions for arbitrary periodic surfaces: the surface mobility tensor

    E-Print Network [OSTI]

    Kamrin, Kenneth N.

    In a variety of applications, most notably microfluidics design, slip-based boundary conditions have been sought to characterize fluid flow over patterned surfaces. We focus on laminar shear flows over surfaces with periodic ...

  14. Exhibition of the periodicity of Quantum Fourier Transformation in Nuclear Magnetic Resonance

    E-Print Network [OSTI]

    Xinhua Peng; Xiwen Zhu; Ximing Fang; Mang Feng; Xiaodong Yang; Maili Liu; Kelin Gao

    2002-02-01T23:59:59.000Z

    The remarkable capability of quantum Fourier transformation (QFT) to extract the periodicity of a given periodic function has been exhibited by using nuclear magnetic resonance (NMR) techniques. Two separate sets of experiments were performed. In a full QFT, the periodicity were validated with state tomography and fidelity measurements. For a simplified QFT, the three-qubit pseudo-pure state was created by introducting an additional observer spin, and the spectra recorded on the observer spin showed intuitively the power of QFT\\ to find the periodicity. Experimentally realizing the QFT provides a critical step to implement the renowned Shor's quantum factoring algorithm and many other algorithms. Moveover, it can be applied to the study of quantum chaos and other quantum information processing.

  15. Exhibition of the periodicity of Quantum Fourier Transformation in Nuclear Magnetic Resonance

    E-Print Network [OSTI]

    Peng, X; Fang, X; Feng, M; Yang, X; Liu, M; Gao, K; Peng, Xinhua; Zhu, Xiwen; Fang, Ximing; Feng, Mang; Yang, Xiaodong; Liu, Maili; Gao, Kelin

    2002-01-01T23:59:59.000Z

    The remarkable capability of quantum Fourier transformation (QFT) to extract the periodicity of a given periodic function has been exhibited by using nuclear magnetic resonance (NMR) techniques. Two separate sets of experiments were performed. In a full QFT, the periodicity were validated with state tomography and fidelity measurements. For a simplified QFT, the three-qubit pseudo-pure state was created by introducting an additional observer spin, and the spectra recorded on the observer spin showed intuitively the power of QFT\\ to find the periodicity. Experimentally realizing the QFT provides a critical step to implement the renowned Shor's quantum factoring algorithm and many other algorithms. Moveover, it can be applied to the study of quantum chaos and other quantum information processing.

  16. Periodic Metallic Nanostructures as Plasmonic Chemical Sensors Chiara Valsecchi and Alexandre G. Brolo*

    E-Print Network [OSTI]

    Brolo, Alexandre G.

    ;evaluation as chemical sensors and a brief comparison of the pPeriodic Metallic Nanostructures as Plasmonic Chemical Sensors Chiara Valsecchi and Alexandre G generation of low- cost and efficient chemical sensors and biosensors. The extensive variety

  17. June 15, 1996 / Vol. 21, No. 12 / OPTICS LETTERS 857 Photorefractive effects in periodically poled ferroelectrics

    E-Print Network [OSTI]

    Fejer, Martin M.

    - conversion interactions.2 ­ 5 There have been several reports that periodically poled lithium niobate (PPLN s is a parameter that depends on the properties of the host crystal, donors, and traps and nd is the dark

  18. Mediterraneità and modernità : architecture and culture during the period of Italian colonization of North Africa

    E-Print Network [OSTI]

    McLaren, Brian L. (Brian Lloyd), 1958-

    2001-01-01T23:59:59.000Z

    This dissertation examines the intersection of the modern and the colonial in architecture and culture during the period of Italian colonization of North Africa from 1911 to 1943. Rather than see the colonies as merely a ...

  19. Guided wave optics in periodically poled KTP: quadratic nonlinearity and prospects for attosecond jitter characterization

    E-Print Network [OSTI]

    Roberts, Tony D.

    For the first time to our knowledge, continuous nonsegmented channel waveguides in periodically poled KTiOPO4 with guided orthogonal polarizations are used to demonstrate type II background-free second harmonic generation ...

  20. Semiclassical analysis for a Schrodinger operator with a U(2) artificial gauge: the periodic case

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    : semiclassical asymptotic, spectrum, eigenvalues, Schrodinger, periodic potential, BKW method, width of the first Preliminary: the artificial gauge model 3 3 Proof of Theorem 2.1 5 4 Asymptotic of the first band 6 5 B.K.W

  1. Semiclassical analysis for a Schrodinger operator with a U(2) artificial gauge: the periodic case

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    : semiclassical asymptotic, spectrum, eigenvalues, Schrodinger, periodic potential, BKW method, width of the first Preliminary: the artificial gauge model 3 3 Proof of Theorem 2.1 5 4 Asymptotic of the first band 7 5 B.K.W

  2. Modeling laser-induced periodic surface structures: Finite-difference time-domain feedback simulations

    SciTech Connect (OSTI)

    Skolski, J. Z. P., E-mail: j.z.p.skolski@utwente.nl; Vincenc Obona, J. [Materials innovation institute M2i, Faculty of Engineering Technology, Chair of Applied Laser Technology, University of Twente, P.O. Box 217, 7500 AE Enschede (Netherlands); Römer, G. R. B. E.; Huis in 't Veld, A. J. [Faculty of Engineering Technology, Chair of Applied Laser Technology, University of Twente, P.O. Box 217, 7500 AE Enschede (Netherlands)

    2014-03-14T23:59:59.000Z

    A model predicting the formation of laser-induced periodic surface structures (LIPSSs) is presented. That is, the finite-difference time domain method is used to study the interaction of electromagnetic fields with rough surfaces. In this approach, the rough surface is modified by “ablation after each laser pulse,” according to the absorbed energy profile, in order to account for inter-pulse feedback mechanisms. LIPSSs with a periodicity significantly smaller than the laser wavelength are found to “grow” either parallel or orthogonal to the laser polarization. The change in orientation and periodicity follow from the model. LIPSSs with a periodicity larger than the wavelength of the laser radiation and complex superimposed LIPSS patterns are also predicted by the model.

  3. Ergodic theory and visualization. II. Harmonic mesochronic plots visualize (quasi)periodic sets

    E-Print Network [OSTI]

    Zoran Levnaji?; Igor Mezi?

    2014-07-26T23:59:59.000Z

    We present a new method of analysis of measure-preserving dynamical systems, based on frequency analysis and ergodic theory, which extends our earlier work [1]. Our method employs the novel concept of harmonic time average [2], and is realized as a computational algorithms for visualization of periodic and quasi-periodic sets or arbitrary periodicity in the phase space. Besides identifying all periodic sets, our method is useful in detecting chaotic phase space regions with a good precision. The range of method's applicability is illustrated using well-known Chirikov standard map, while its full potential is presented by studying higher-dimensional measure-preserving systems, in particular Froeschl\\'e map and extended standard map.

  4. Public Comment Period for Portsmouth Site D&D and Waste Disposition...

    Office of Environmental Management (EM)

    2014 8:00AM EST to March 11, 2015 5:00PM EDT Public Comment Period for the Process Buildings and Complex Facilities Decontamination and Decommissioning and Site-Wide Waste...

  5. Dietary modifications of lipid metabolism in canine plasma during gestation, lactation, and the neonatal period 

    E-Print Network [OSTI]

    Wright, Angela Shanna

    2004-01-01T23:59:59.000Z

    A study was done to investigate and better understand dietary modifications of canine lipid metabolism during gestation, lactation, and the neonatal period. Sexually intact, clinically normal female dogs were bred to the same sire and divided...

  6. Comparison of quantization of charge transport in periodic and open pumps

    E-Print Network [OSTI]

    Gian Michele Graf; Gregorio Ortelli

    2007-09-19T23:59:59.000Z

    We compare the charges transported in two systems, a spatially periodic and an open quantum pump, both depending periodically and adiabatically on time. The charge transported in a cycle was computed by Thouless, respectively by Buttiker et al. in the two cases. We show that the results agree in the limit where the two physical situations become the same, i.e., that of a large open pump.

  7. Spatial Periodic Forcing Can Displace Patterns It Is Intended to Control

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

    Mau, Yair; Hagberg, Aric; Meron, Ehud

    2012-07-01T23:59:59.000Z

    Spatial periodic forcing of pattern-forming systems is an important, but lightly studied, method of controlling patterns. It can be used to control the amplitude and wave number of one-dimensional periodic patterns, to stabilize unstable patterns, and to induce them below instability onset. We show that, although in one spatial dimension the forcing acts to reinforce the patterns, in two dimensions it acts to destabilize or displace them by inducing two-dimensional rectangular and oblique patterns.

  8. Effect of the hepatoma growth period on host plasma and liver lipid concentrations

    E-Print Network [OSTI]

    Matocha, Martha Frances

    1979-01-01T23:59:59.000Z

    EFFECT OF THE HEPATOMA GROWTH PERIOD ON HOST PLASMA AND LIVER LIPID CONCENTRATIONS A Thesis by MARTHA FRANCES MATOCHA Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree... of MASTER OF SCIENCE August 1979 Niajor Sub ect: Biochem. 'stry EFFECT OF THE HEPATOMA GROWTH PERIOD ON HOST PLASMA AND LIVER LIPID CONCENTRATIONS A Thesis MARTHA FRANCES MATOCHA Approved as to style and content by: (Chairman of Committee) (Mern...

  9. An improved correlation method for determining the period of a torsion pendulum

    SciTech Connect (OSTI)

    Luo Jie; Wang Dianhong [Faculty of Mechanical and Electronic Information, China University of Geosciences, Wuhan 430074 (China)

    2008-09-15T23:59:59.000Z

    Considering variation of environment temperature and unhomogeneity of background gravitational field, an improved correlation method was proposed to determine the variational period of a torsion pendulum with high precision. The result of processing experimental data shows that the uncertainty of determining the period with this method has been improved about twofolds than traditional correlation method, which is significant for the determination of gravitational constant with time-of-swing method.

  10. On the spin period distribution in Be/X-ray binaries

    SciTech Connect (OSTI)

    Cheng, Z.-Q.; Shao, Y.; Li, X.-D., E-mail: lixd@nju.edu.cn [Department of Astronomy, Nanjing University, Nanjing 210093 (China)

    2014-05-10T23:59:59.000Z

    There is a remarkable correlation between the spin periods of the accreting neutron stars (NSs) in Be/X-ray binaries (BeXBs) and their orbital periods. Recently, Knigge et al. showed that the distribution of the spin periods contains two distinct subpopulations peaked at ?10 s and ?200 s, respectively, and suggested that they may be related to two types of supernovae for the formation of the NSs, i.e., core-collapse and electron-capture supernovae. Here we propose that the bimodal spin period distribution is likely to be ascribed to different accretion modes of the NSs in BeXBs. When the NS tends to capture material from the warped, outer part of the Be star disk and experiences giant outbursts, a radiatively cooling dominated disk is formed around the NS, which spins up the NS and is responsible for the short-period subpopulation. In BeXBs that are dominated by normal outbursts or are persistent, the accretion flow is advection-dominated or quasi-spherical. The spin-up process is accordingly inefficient, leading to longer periods of the neuron stars. The potential relation between the subpopulations and the supernova mechanism is also discussed.

  11. 1-QFT or 2-step TST is required if there is no documentation of a negative test within the past 12 months 2-Documentation of appropriate evaluation and treatment must be provided prior to clearance for work

    E-Print Network [OSTI]

    Sonnenburg, Justin L.

    of the following symptoms: YES NO 1) Persistent coughing (3 weeks or more)? 2) Coughing up blood or bloody sputum

  12. Development of Advanced Concept for Shortening Construction Period of ABWR Plant

    SciTech Connect (OSTI)

    Hiroshi Ijichi; Toshio Yamashita; Masahiro Tsutagawa; Hiroya Mori [Toshiba Corporation (Japan); Nobuaki Ooshima; Jun Miura [Hitachi Ltd. (Japan); Minoru Kanechika [Kajima Corporation (Japan); Nobuaki Miura [Shimizu Corporation (Japan)

    2002-07-01T23:59:59.000Z

    Construction of a nuclear power plant (NPP) requires a very long period because of large amount of construction materials and many issues for negotiation among multiple sections. Shortening the construction period advances the date of return on an investment, and can also result in reduced construction cost. Therefore, the study of this subject has a very high priority for utilities. We achieved a construction period of 37 months from the first concrete work to fuel loading (F/L) (51.5 months from the inspection of the foundation (I/F) to the start of commercial operation (C/O)) at the Kashiwazaki-Kariwa NPPs No. 6 and 7 (KK-6/7), which are the first ABWR plants in the world. At TEPCO's next plant, we think that a construction period of less than 36 months (45 months from I/F to C/O) can be realized based on conventional methods such as early start of equipment installation and blocking of equipment to be brought in advance. Furthermore, we are studying the feasibility of a 21.5-month construction period (30 months from I/F to C/O) with advanced ideas and methods. The important concepts for a 21.5-month construction period are adoption of a new building structure that is the steel plate reinforced concrete (SC) structure and promotion of extensive modularization of equipment and building structure. With introducing these new concepts, we are planning the master schedule (M/S) and finding solutions to conflicts in the schedule of area release from building construction work to equipment installation work (schedule-conflicts.) In this report, we present the shortest construction period and an effective method to put it into practice for the conventional general arrangement (GA) of ABWR. In the future, we will continue the study on the improvement of building configuration and arrangements, and make clear of the concept for large composite modules of building structures and equipment. (authors)

  13. THE SPECTROSCOPIC SIGNATURE OF QUASI-PERIODIC UPFLOWS IN ACTIVE REGION TIMESERIES

    SciTech Connect (OSTI)

    Tian Hui; McIntosh, Scott W. [High Altitude Observatory, National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 8037 (United States); De Pontieu, Bart, E-mail: htian@ucar.edu, E-mail: mscott@ucar.edu, E-mail: bdp@lmsal.com [Lockheed Martin Solar and Astrophysics Laboratory, 3251 Hanover Street, Org. ADBS, Bldg. 252, Palo Alto, CA 94304 (United States)

    2011-02-01T23:59:59.000Z

    Quasi-periodic propagating disturbances are frequently observed in coronal intensity image sequences. These disturbances have historically been interpreted as being the signature of slow-mode magnetoacoustic waves propagating into the corona. The detailed analysis of Hinode EUV Imaging Spectrometer (EIS) timeseries observations of an active region (known to contain propagating disturbances) shows strongly correlated, quasi-periodic, oscillations in intensity, Doppler shift, and line width. No frequency doubling is visible in the latter. The enhancements in the moments of the line profile are generally accompanied by a faint, quasi-periodically occurring, excess emission at {approx}100 km s{sup -1} in the blue wing of coronal emission lines. The correspondence of quasi-periodic excess wing emission and the moments of the line profile indicates that repetitive high-velocity upflows are responsible for the oscillatory behavior observed. Furthermore, we show that the same quasi-periodic upflows can be directly identified in a simultaneous image sequence obtained by the Hinode X-Ray Telescope. These results are consistent with the recent assertion of De Pontieu and McIntosh that the wave interpretation of the data is not unique. Indeed, given that several instances are seen to propagate along the direction of the EIS slit that clearly shows in-phase, quasi-periodic variations of intensity, velocity, width (without frequency doubling), and blue wing enhanced emission, this data set would appear to provide a compelling example that upflows are more likely to be the main cause of the quasi-periodicities observed here, as such correspondences are hard to reconcile in the wave paradigm.

  14. Data:7484ef14-d604-4bb9-987e-08cf9be2db23 | Open Energy Information

    Open Energy Info (EERE)

    12 month period. Service shall be single phase and taken through one meter with no motor to exceed 5 hp in size. Under this rate customers are to be billed twice annually with...

  15. Data:0b0ebbc6-033b-45da-8774-1a0e6620b636 | Open Energy Information

    Open Energy Info (EERE)

    year's maximum demand recorded was 50% or less of the rated horsepower of the installed motor, the minimum bill shall be 55.00 per month for a twelve (12) month period plus 2.30...

  16. Data:018673f0-093a-4a53-869d-3ac77d260efb | Open Energy Information

    Open Energy Info (EERE)

    year's maximum demand recorded was 50% or less of the rated horsepower of the installed motor, the minimum bill shall be 55.00 per month for a twelve (12) month period plus 2.30...

  17. Data:C59601b9-981c-46a8-8165-43a81f92240f | Open Energy Information

    Open Energy Info (EERE)

    year's maximum demand recorded was 50% or less of the rated horsepower of the installed motor, the minimum bill shall be 55.00 per month for a twelve (12) month period plus 2.30...

  18. Data:B9116c61-ade2-4305-8c8b-e43f4500ebbb | Open Energy Information

    Open Energy Info (EERE)

    a period of not less than 12 months. Net Metered Renewable Energy Source Rider - If the electricity produced by the net metered renewable energy source is less than that consumed...

  19. Job Tax Credit and Super Credit (Tennessee)

    Broader source: Energy.gov [DOE]

    The Job Tax Credit Program is a tax credit program for companies investing at least $500,000 and creating 25 new jobs in a 12-month period. The company creating these jobs can claim a Job Tax...

  20. Periodic auroral forms and geomagnetic field oscillations in the 1400 MLT region

    SciTech Connect (OSTI)

    Potemra, T.A. (Johns Hopkins Univ., Laurel, MD (United States)); Vo, H.; Venkatesan, D.; Cogger, L.L. (Univ. of Calgary, Alberta (Canada)); Erlandson, R.E.; Zanetti, L.J.; Bythrow, P.F.; Anderson, B.J. (Johns Hopkins Univ., Laurel, MD (United States))

    1990-05-01T23:59:59.000Z

    The UV images obtained with the Viking satellite often show bright features which resemble beads or pearls aligned in the east-west direction between noon and 1800 MLT. Viking acquired a series of 25 UV images during a 28-min period on July 29, 1986, which showed a distinct series of periodic bright features in this region. Magnetic field and hot plasma measurements obtained by Viking confirm that the UV emissions are colocated with the field line projection of an upward-flowing region 1 Birkeland current and precipitating energetic ({approximately}200 eV) electrons. The magnetic field and electric field measurements show transverse oscillations with a nearly constant period of about 3.5 min from 67{degree} invariant latitude equatorward up to the location of the large-scale Birkeland current system near 76{degree} invariant latitude. The electric field oscillations lead the magnetic field oscillations by about a quarter-period. The authors interpret the observed oscillations as standing Alfven waves driven at a frequency near the local resonance frequency by a large-scale wave in the boundary layer. They propose that the energy flux of the precipitating low-energy electrons in this afternoon region is modulated by this boundary wave and produces the periodic UV emission features. The results of this study support the view that large-scale oscillations of magnetospheric boundaries, possibly associated with the Kelvin-Helmholtz instability, can modulate currents, particles, and auroral forms.

  1. Dwarf Nova-like Outburst of Short Period Intermediate Polar HT Camelopardalis

    E-Print Network [OSTI]

    Ryoko Ishioka; Taichi Kato; Makoto Uemura; Gary W. Billings; Koichi Morikawa; Ken'ichi Torii; Kenji Tanabe; Arto Oksanen; Harri Hyvonen; Hitoshi Itoh

    2002-06-12T23:59:59.000Z

    We report the first time-series observations of the short outburst of the proposed intermediate polar HT Cam (=RX J0757.0+6306). On 2001 December 29, we detected the object was undergoing a bright outburst at the magnitude of $m_{vis}=12.2$. Following this detection, we started international joint observations through VSNET. The light curve showed a gradual decline for the first 0.5 d. Following this short plateau phase, the rate of decline dramatically increased to more than 4 mag d$^{-1}$. Within 1.5 d from the outburst detection, the object almost declined to the quiescent level. During the rapidly declining phase, long-term modulations with a period of 86 min and strong pulses with a period of 8.6 min were observed. We concluded that 86 min and 8.6 min are the orbital period and the spin period of HT Cam, respectively. By the detection of the spin period, we confirmed the IP classification of HT Cam. However, its outburst behavior rather resembles that of dwarf novae. The discrepancy between the declining rates of the total flux and the pulse flux strongly suggests that the disk instabilities were taking place during the outburst.

  2. Discovery of four periodic methanol masers and updated light curve for a further one

    E-Print Network [OSTI]

    Szymczak, M; Bartkiewicz, A

    2015-01-01T23:59:59.000Z

    We report the discovery of 6.7 GHz methanol maser periodic flares in four massive star forming regions and the updated light curve for the known periodic source G22.357+0.066. The observations were carried out with the Torun 32 m radio telescope between June 2009 and April 2014. Flux density variations with period of 120 to 245 d were detected for some or all spectral features. A variability pattern with a fast rise and relatively slow fall on time-scale of 30-60 d dominated. A reverse pattern was observed for some features of G22.357+0.066, while sinusoidal-like variations were detected in G25.411+0.105. A weak burst lasting ~520 d with the velocity drift of 0.24 km/s/yr occurred in G22.357+0.066. For three sources for which high resolution maps are available, we found that the features with periodic behaviour are separated by more than 500 au from those without any periodicity. This suggests that the maser flares are not triggered by large-scale homogeneous variations in either the background seed photon fl...

  3. Analysis of electromagnetic scattering by nearly periodic structures: an LDRD report.

    SciTech Connect (OSTI)

    Johnson, William Arthur; Warne, Larry Kevin; Jorgenson, Roy Eberhardt; Wilton, Donald R. (University of Houston, Houston, TX); Basilio, Lorena I.; Peters, David William; Capolino, F. (University of Houston, Houston, TX)

    2006-10-01T23:59:59.000Z

    In this LDRD we examine techniques to analyze the electromagnetic scattering from structures that are nearly periodic. Nearly periodic could mean that one of the structure's unit cells is different from all the others--a defect. It could also mean that the structure is truncated, or butted up against another periodic structure to form a seam. Straightforward electromagnetic analysis of these nearly periodic structures requires us to grid the entire structure, which would overwhelm today's computers and the computers in the foreseeable future. In this report we will examine various approximations that allow us to continue to exploit some aspects of the structure's periodicity and thereby reduce the number of unknowns required for analysis. We will use the Green's Function Interpolation with a Fast Fourier Transform (GIFFT) to examine isolated defects both in the form of a source dipole over a meta-material slab and as a rotated dipole in a finite array of dipoles. We will look at the numerically exact solution of a one-dimensional seam. In order to solve a two-dimensional seam, we formulate an efficient way to calculate the Green's function of a 1d array of point sources. We next formulate ways of calculating the far-field due to a seam and due to array truncation based on both array theory and high-frequency asymptotic methods. We compare the high-frequency and GIFFT results. Finally, we use GIFFT to solve a simple, two-dimensional seam problem.

  4. Study of multi-periodic coronal pulsations during an X-class solar flare

    E-Print Network [OSTI]

    Chowdhury, Partha; Dwivedi, B N; Sych, Robert; Moon, Y -J

    2015-01-01T23:59:59.000Z

    We investigate quasi-periodic coronal pulsations during the decay phase of an X 3.2 class flare on 14 May 2013, using soft X-ray data from the RHESSI satellite. Periodogram analyses of soft X-ray light curves show that 53 s and 72 s periods co-exist in the 3-6, 6-12 and 12-25 KeV energy bands. Considering the typical length of the flaring loop system and observed periodicities, we find that they are associated with multiple (first two harmonics) of fast magnetoacoustic sausage waves. The phase relationship of soft X-ray emissions in different energy bands using cross-correlation technique show that these modes are standing in nature as we do not find the phase lag. Considering the period ratio, we diagnose the local plasma conditions of the flaring region by invoking MHD seismology. The period ratio P1/2P2 is found to be 0.65, which indicates that such oscillations are most likely excited in longitudinal density stratified loops.

  5. Modification of the Carbon and Beryllium Walls in JET by Erosion, Redeposition and Deuterium Trapping after the 1991 Discharge Period

    E-Print Network [OSTI]

    Modification of the Carbon and Beryllium Walls in JET by Erosion, Redeposition and Deuterium Trapping after the 1991 Discharge Period

  6. Energy Efficiency Program for Residential Products: Energy Conservation Standards for Residential Dishwashers, Reopening of the Comment Period

    Broader source: Energy.gov [DOE]

    Energy Efficiency Program for Residential Products: Energy Conservation Standards for Residential Dishwashers, Reopening of the Comment Period

  7. Complex modes and new amplification regimes in periodic multi transmission lines interacting with an electron beam

    E-Print Network [OSTI]

    Othman, Mohamed; Capolino, Filippo

    2014-01-01T23:59:59.000Z

    We show the existence of a new regime of operation for travelling wave tubes (TWTs) composed of slow-wave periodic structures that support two or more electromagnetic modes, with at least two synchronized with an electron beam. The interaction between the slow-wave structure and an electron beam is quantified using a multi transmission line approach (MTL) and transfer matrix analysis leading to the identification of modes with complex Bloch wavenumber. In particular, we report a new operation condition for TWTs based on an electron beam synchronous to two modes exhibiting a degeneracy condition near a band edge in a MTL slow-wave periodic structure. We show a phenomenological change in the band structure of periodic TWT where we observe at least two growing modal cooperating solutions as opposed to a uniform MTL interacting with an electron beam where there is strictly only one growing mode solution.

  8. On the Stability of the 421-day Periodicity in A0538-66

    E-Print Network [OSTI]

    Katherine E. McGowan; Phil A. Charles

    2002-11-01T23:59:59.000Z

    In this paper we analyse 70 years of archival Harvard and Schmidt plate data of the 16.6 d Be X-ray binary A0538-66 in order to search for the presence of the long-term period of 420.82 +/- 0.79 d found in MACHO photometry (Alcock et al. 2001). We find evidence for a long-term period of 421.29 +/- 0.95 d in the archival data, and examine its stability. We also combine the archival and MACHO datasets in order to improve the accuracy of the orbital period determination, using a cycle-counting analysis to refine its value to 16.6460 +/- 0.0004 d. We also test the model proposed in our previous paper (Alcock et al. 2001) with observations documented in the literature for A0538-66 from 1980-1995, constraining the system inclination to be i > 74.9 +/- 6.5 deg.

  9. Broadband asymmetric acoustic transmission by a plate with quasi-periodic surface ridges

    SciTech Connect (OSTI)

    Li, Chunhui; Ke, Manzhu, E-mail: mzke@whu.edu.cn; Ye, Yangtao; Xu, Shengjun; Qiu, Chunyin; Liu, Zhengyou [Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education and School of Physics and Technology, Wuhan University, Wuhan 430072 (China)

    2014-07-14T23:59:59.000Z

    In this paper, an acoustic system with broadband asymmetric transmission is designed and fabricated, which consists of a water-immersed aluminum plate engraved with quasi-periodically-patterned ridges on single surface. It demonstrates that when the acoustic waves are launched into the system from the structured side, they can couple into the Lamb modes in the plate efficiently and attain a high transmission; on the contrary, when the waves are incident from the opposite flat side, the coupling is weak, and the transmission is low. Superior to systems with periodic patterning, this quasi-periodically-patterned system has a broad working frequency range due to the collective contributions from the multiple diffractions specific to the structure.

  10. Controlled motion of Janus particles in periodically phase-separating binary fluids

    E-Print Network [OSTI]

    Takeaki Araki; Shintaro Fukai

    2015-04-03T23:59:59.000Z

    We numerically investigate the propelled motions of a Janus particle in a periodically phase-separating binary fluid mixture. In this study, the surface of the particle tail prefers one of the binary fluid components and the particle head is neutral in the wettability. During the demixing period, the more wettable phase is selectively adsorbed to the particle tail. Growths of the adsorbed domains induce the hydrodynamic flow in the vicinity of the particle tail, and this asymmetric pumping flow drives the particle toward the particle head. During the mixing period, the particle motion almost ceases because the mixing primarily occurs via diffusion and the resulting hydrodynamic flow is negligibly small. Repeating this cycle unboundedly moves the Janus particle toward the head. The dependencies of the composition and the repeat frequency on the particle motion are discussed.

  11. X-ray Variability and Period Determinations in the Eclipsing Polar DP Leo

    E-Print Network [OSTI]

    C. R. Robinson; F. A. Cordova

    1994-08-15T23:59:59.000Z

    An analysis of ROSAT observations for the eclipsing magnetic cataclysmic binary DP Leo provides constraints on the origin, size, temperature, variability and structure of the soft X-ray emission region on the surface of the white dwarf. These data, when combined with prior observations, show a progression of approximately 2 degrees per year in the impact position of the accretion stream onto the white dwarf. One explanation for the observed drift in stream position is that a magnetic activity cycle on the secondary produces orbital period oscillations. These oscillations result in an orbital period which cycles above and below the rotational period of the nearly synchronous white dwarf. The accretion stream and X-ray emission regions are modeled to fit the observational data. A distance to the system is also calculated. [An erroneous value for the cyclotron luminosity, included in an earlier paper version of the preprint, is corrected here.

  12. Rotation numbers of invariant manifolds around unstable periodic orbits for the diamagnetic Kepler problem

    E-Print Network [OSTI]

    Zuo-Bing Wu

    2008-03-17T23:59:59.000Z

    In this paper, a method to construct topological template in terms of symbolic dynamics for the diamagnetic Kepler problem is proposed. To confirm the topological template, rotation numbers of invariant manifolds around unstable periodic orbits in a phase space are taken as an object of comparison. The rotation numbers are determined from the definition and connected with symbolic sequences encoding the periodic orbits in a reduced Poincar\\'e section. Only symbolic codes with inverse ordering in the forward mapping can contribute to the rotation of invariant manifolds around the periodic orbits. By using symbolic ordering, the reduced Poincar\\'e section is constricted along stable manifolds and a topological template, which preserves the ordering of forward sequences and can be used to extract the rotation numbers, is established. The rotation numbers computed from the topological template are the same as those computed from their original definition.

  13. MAP3S precipitation chemistry network. Third periodic summary report, July 1978-December 1979

    SciTech Connect (OSTI)

    Not Available

    1980-05-01T23:59:59.000Z

    The MAP3S Precipitation Chemistry Network consists of eight collection sites in the northeastern United States. Precipitation event samples are collected by cooperating site operators, using specially developed sampling equipment. In this, the third periodic summary report, are listed field and concentration data for the period July 1, 1978 to December 31, 1979. Over three years' samples have been collected at most of the sites, which went into operation between September 1976 and October 1978. Samples are chemically analyzed at a central laboratory for 13 pollutant species. Weekly samples in addition to event samples were collected over a 1 1/2 year period at three sites. Analysis of one year's results indicates that there is little difference between the concentrations collected by the two methods in terms of seasonal precipitation-weighted means for all species except dissolved SO/sub 2/. Event samples tend to average about 25% higher in SO/sub 2/ than weekly samples.

  14. NATIONAL EVALUATION OF THE WEATHERIZATION ASSISTANCE PROGRAM DURING THE ARRA PERIOD: PROGRAM YEARS 2009-2011

    SciTech Connect (OSTI)

    Tonn, Bruce Edward [ORNL; Rose, Erin M [ORNL; Schmoyer, Richard L [ORNL; Eisenberg, Joel Fred [ORNL; Ternes, Mark P [ORNL; Schweitzer, Martin [ORNL; Hendrick, Timothy P [ORNL

    2012-08-01T23:59:59.000Z

    This report describes the third major evaluation of the Program, encompassing program years 2009 to 2011. In this report, this period of time is referred to as the ARRA Period. This is a special period of time for the Program because the American Recovery and Reinvestment Act (ARRA) of 2009 has allocated $5 billion of funding for the Program. In normal program years, WAP s annual appropriation is in the range of $200-250 million, supporting the weatherization of approximately 100,000 homes. With the addition of ARRA funding during these program years, the expectation is that weatherization activity will exceed 300,000 homes per year. In addition to saving energy and reducing low-income energy bills, expanded WAP funding is expected to stimulate the economy by providing new jobs in the weatherization field and allowing low-income households to spend more money on goods and services by spending less on energy.

  15. Chemical Technology Division progress report for the period April 1, 1985 to December 31, 1986

    SciTech Connect (OSTI)

    Not Available

    1987-08-01T23:59:59.000Z

    This progress report summarizes the research and development efforts conducted in the Chemical Technology Division (Chem Tech) during the period April 1, 1985, through December 31, 1986. The following major areas are covered in the discussion: nuclear and chemical waste management, environmental control technology, basic science and technology, biotechnology research, transuranium-element processing, Nuclear Regulatory Commission programs, radioactive materials production, computer/engineering applications, fission energy, environmental cleanup projects, and various other work activities. As an appendix, the Administrative Summary presents a comprehensive compilation of publications, oral presentations, awards and recognitions, and patents of Chem Tech staff members during this report period. An organization chart, a staffing level and financial summary, and lists of seminars and Chem Tech consultants for the period are also included to provide additional information. 78 figs., 40 tabs.

  16. Long-Period Objects in the Extrasolar Planetary Systems 47 UMa and 14 Her

    E-Print Network [OSTI]

    Robert A. Wittenmyer; Michael Endl; William D. Cochran

    2006-09-05T23:59:59.000Z

    The possible existence of additional long-period planetary-mass objects in the extrasolar planetary systems 47 UMa and 14 Her is investigated. We combine all available radial-velocity data on these stars, spanning up to 18 years. For the 47 UMa system, we show that while a second planet improves the fit to all available data, there is still substantial ambiguity as to the orbital parameters of the proposed planetary companion 47 UMa c. We also present new observations which clearly support a long-period companion in the 14 Her system. With a period of 6906+/-70 days, 14 Her c may be in a 4:1 resonance with the inner planet. We also present revised orbital solutions for 7 previously known planets incorporating recent additional data obtained with the 2.7m Harlan J. Smith Telescope at McDonald Observatory.

  17. BoseEinstein condensates in spatially periodic potentials Kirstine BergSrensen 1 and Klaus Mlmer 2

    E-Print Network [OSTI]

    Berg-Sørensen, Kirstine

    Bose­Einstein condensates in spatially periodic potentials Kirstine Berg­Sørensen 1 and Klaus theoretically the properties of a Bose­Einstein condensate located in a spatially periodic potential. The excitations of the condensate are obtained from linear equations involving the periodic potential

  18. Los Alamos National Laboratory's Chemistry Division Presents Periodic Table of the Elements

    E-Print Network [OSTI]

    Hochberg, Michael

    144.2 61 Pm (147) 62 Sm 150.4 63 Eu 152.0 64 Gd 157.3 65 Tb 158.9 66 Dy 162.5 67 Ho 164.9 68 Er 167.lanl.gov/periodic/ (1 of 3) [5/17/2001 4:06:20 PM] #12;Lanthanide Series* 58 Ce 140.1 59 Pr 140.9 60 Nd) [5/17/2001 4:06:20 PM] #12;about this resource A Periodic Table of the Elements at Los Alamos

  19. Pump-probe imaging of laser-induced periodic surface structures after ultrafast irradiation of Si

    SciTech Connect (OSTI)

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

    2013-09-30T23:59:59.000Z

    Ultrafast pump-probe microscopy has been used to investigate laser-induced periodic surface structure (LIPSS) formation on polished Si surfaces. A crater forms on the surface after irradiation by a 150 fs laser pulse, and a second, subsequent pulse forms LIPSS within the crater. Sequentially delayed images show that LIPSS with a periodicity slightly less than the fundamental laser wavelength of 780 nm appear on Si surfaces ?50 ps after arrival of the second pump laser pulse, well after the onset of melting. LIPSS are observed on the same timescale as material removal, suggesting that their formation involves material ejection.

  20. Propagation of matter wave solitons in periodic and random nonlinear potentials

    E-Print Network [OSTI]

    Fatkhulla Kh. Abdullaev; Josselin Garnier

    2005-11-10T23:59:59.000Z

    We study the motion of bright matter wave solitons in nonlinear potentials, produced by periodic or random spatial variations of the atomic scattering length. We obtain analytical results for the soliton motion, the radiation of matter wave, and the radiative soliton decay in such configurations of the Bose-Einstein condensate. The stable regimes of propagation are analyzed. The results are in remarkable agreement with the numerical simulations of the Gross-Pitaevskii equation with periodic or random spatial variations of the mean field interactions.

  1. Limit Distribution of Averages over Unstable Periodic Orbits Forming Chaotic Attractor

    E-Print Network [OSTI]

    Denis S. Goldobin

    2012-08-08T23:59:59.000Z

    We address the question of representativeness of a single long unstable periodic orbit for properties of the chaotic attractor it is embedded in. Y. Saiki and M. Yamada [Phys. Rev. E 79, 015201(R) (2009)] have recently suggested the hypothesis that there exist a limit distribution of averages over unstable periodic orbits with given number of loops, N, which is not a Dirac delta-function for infinitely long orbits. In this paper we show that the limit distribution is actually a delta-function and standard deviations decay as 1/sqrt(N) for large enough N.

  2. Getting More For Your Money: Identifying and Confirming Long-Period Planets with Kepler

    E-Print Network [OSTI]

    Jennifer C. Yee; B. Scott Gaudi

    2008-07-16T23:59:59.000Z

    Kepler will monitor enough stars that it is likely to detect single transits of planets with periods longer than the mission lifetime. We show that by combining the Kepler photometry of such transits with precise radial velocity (RV) observations taken over ~3 months, and assuming circular orbits, it is possible to estimate the periods of these transiting planets to better than 20% (for planets with radii greater than that of Neptune) and the masses to within a factor of 2 (for planet masses m_p > M_Jup). We also explore the effects of eccentricity on our estimates of these uncertainties.

  3. Orbital period derivative of a binary system using an exact orbital energy equation

    E-Print Network [OSTI]

    Vikram H. Zaveri

    2014-11-07T23:59:59.000Z

    It is proposed that the equations of motion in periodic relativity which yielded major predictions of general relativity without utilizing Riemannian geometry and geodesic trajectories are exact in nature and can be applied to pulsars and inspiraling compact binaries for analyzing orbital period derivative and two polarization gravitational wave forms. Exactness of these equations eliminates the need for higher order xPN corrections to the orbital energy part of the balance equation. This is mainly due to the introduction of dynamic WEP which states that the gravitational mass is equal to the relativistic mass.

  4. Paraje (de Fra Cristobal): investigations of a Territorial period Hispanic village site in southern New Mexico

    E-Print Network [OSTI]

    Boyd, Douglas Kevin

    1986-01-01T23:59:59.000Z

    PARAJE (DE FRA CRISTOBAL): INVESTIGATIONS OF A TERRITORIAL PERIOD HISPANIC VILLAGE SITE IN SOUTHERN NEW MEXICO A Thesis by DOUGLAS KE V I N BOYD Submitted to the Graduate College of Texas A8iM University in partial fulfillment... of the requirements for the degree of MASTER OF ARTS May 1986 Major Subj ect: Ant hropol ogy PARAJE (DE FRA CRISTOBAL): INVESTIGATIONS OF A TERRITORIAL PERIOD HISPANIC VILLAGE SITE IN SOUTHERN NEW MEXICO A Thesis by DOUGLAS KEVIN BOYD Approved as to style...

  5. The quasi-periodic nature of wall slip for molten plastics in large amplitude oscillatory shear

    E-Print Network [OSTI]

    Adrian, David Warren

    1992-01-01T23:59:59.000Z

    is not to be confused with a quasi-periodic spectrum like Figure 15 because of its strong continuous component. 0. 01 X 0. 001 0. 0001 0. 2 0. 4 0. 6 f (Hz) Figure 14. Chaotic amplitude spectrum of Duffing's equation. 0. 1 0. 01 X 0. 001 0. 0001 1E-05 0... amplitude spectrum for a viscoelastic melt in LAOS 6. Pipkin diagram, adapted from Dealy and Wissbrun (1990), 14 showing the regimes of oscillatory shear for a viscoelastic melt . . . . 15 7. Time domain plot of the quasi-periodic forced van der Pol...

  6. Quantization and 2{pi} periodicity of the axion action in topological insulators

    SciTech Connect (OSTI)

    Vazifeh, M. M.; Franz, M. [Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, V6T 1Z1 (Canada)

    2010-12-15T23:59:59.000Z

    The Lagrangian describing the bulk electromagnetic response of a three-dimensional strong topological insulator contains a topological ''axion'' term of the form {theta}E{center_dot}B. It is often stated (without proof) that the corresponding action is quantized on periodic space time and therefore invariant under {theta}{yields}{theta}+2{pi}. Here we provide a simple, physically motivated proof of the axion action quantization on the periodic space time, assuming only that the vector potential is consistent with single valuedness of the electron wave functions in the underlying insulator.

  7. Periodic striations on beryllium and tungsten surfaces by indirect femtosecond laser irradiation

    SciTech Connect (OSTI)

    Lungu, C. P.; Tico?, C. M., E-mail: catalin.ticos@inflpr.ro; Poro?nicu, C.; Jepu, I.; Lungu, M.; Marcu, A.; Luculescu, C.; Cojocaru, G.; Ursescu, D.; B?nici, R.; Ungureanu, G. R. [National Institute for Laser, Plasma and Radiation Physics, 077125 Bucharest (Romania)] [National Institute for Laser, Plasma and Radiation Physics, 077125 Bucharest (Romania)

    2014-03-10T23:59:59.000Z

    Femtosecond laser pulses with ??=?800?nm were focused in air at one atmosphere and in deuterium (D) at low pressure. Submicron periodic structures were observed on surfaces made of Be, W and a mixture of Be-W immersed in these gases and placed nearly parallel with the laser beam, at 300??m from the focal spot. In air, no structures were observed on Be. For the Be-W mixture, the periodic structures were uniform and parallel when formed in D but irregular in air. In this last case the striations were organized into small patches of 1 to 2 ?m in size.

  8. Analysis of periodically-forced turbulence in the rapid distortion limit

    E-Print Network [OSTI]

    O'Neil, Joshua Robert

    2006-04-12T23:59:59.000Z

    ANALYSIS OF PERIODICALLY-FORCED HOMOGENEOUS TURBULENCE IN THE RAPID DISTORTION LIMIT A Thesis by JOSHUA R. O?NEIL Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE December 2004 Major Subject: Aerospace Engineering ANALYSIS OF PERIODICALLY-FORCED HOMOGENEOUS TURBULENCE IN THE RAPID DISTORTION LIMIT A Thesis by JOSHUA R. O?NEIL Submitted to Texas A&M University in partial fulfillment of the requirements...

  9. Complete Chaotic Mixing in an Electro-osmotic Flow by Destabilization of Key Periodic Pathlines

    E-Print Network [OSTI]

    R. Chabreyrie; C. Chandre; P. Singh; N. Aubry

    2011-02-07T23:59:59.000Z

    The ability to generate complete, or almost complete, chaotic mixing is of great interest in numerous applications, particularly for microfluidics. For this purpose, we propose a strategy that allows us to quickly target the parameter values at which complete mixing occurs. The technique is applied to a time periodic, two-dimensional electro-osmotic flow with spatially and temporally varying Helmoltz-Smoluchowski slip boundary conditions. The strategy consists of following the linear stability of some key periodic pathlines in parameter space (i.e., amplitude and frequency of the forcing), particularly through the bifurcation points at which such pathlines become unstable.

  10. Black and white: a portrayal of gender roles in American women's periodicals during the Eisenhour years

    E-Print Network [OSTI]

    McGaugh, Emily Cozette

    1996-01-01T23:59:59.000Z

    (1883) GOOD 3~0, 690 3, 442, 784 3, 602+33 4, 367, 766 HOUSEKEEPING (1885) 4, 437, 978 4, 673, 416 REDBOOK 1, 980, 153 2, 048, 407 2, 288, 170 2, 689, 510 2, 808, 729 2, 994, 059 (1903) READER'S DIGEST N/A 10, 000, 000 11, 024, 410 12, 184, 516 12.... Civil Rights, Transition. SUMMARY AND CONCLUSIONS. S ummary. Conclusions. BIBLIOGRAPHY. VITA . . Page tv v 1 2 3 7 13 15 19 20 23 26 26 26 32 37 LIST OF TABLES TABLES 1 Black Periodicals Circulation. 2 White Periodicals...

  11. The quasi-periodic nature of wall slip for molten plastics in large amplitude oscillatory shear 

    E-Print Network [OSTI]

    Adrian, David Warren

    1992-01-01T23:59:59.000Z

    is not to be confused with a quasi-periodic spectrum like Figure 15 because of its strong continuous component. 0. 01 X 0. 001 0. 0001 0. 2 0. 4 0. 6 f (Hz) Figure 14. Chaotic amplitude spectrum of Duffing's equation. 0. 1 0. 01 X 0. 001 0. 0001 1E-05 0... amplitude spectrum for a viscoelastic melt in LAOS 6. Pipkin diagram, adapted from Dealy and Wissbrun (1990), 14 showing the regimes of oscillatory shear for a viscoelastic melt . . . . 15 7. Time domain plot of the quasi-periodic forced van der Pol...

  12. Short period fluctuations of sea level in the West Florida Keys

    E-Print Network [OSTI]

    Hsu, Sangem

    1978-01-01T23:59:59.000Z

    stages at each station. It is found that seiches at Vaca Key show strong correlations with weather conditions and also that short period fluctuations at several stations are influenced by effects of non-linear residual tidal currents (effects through... Fluctuations of Sea Level at Stations with Data Recorded in April. 4. 3 Short Period Fluctuations of Sea Level at Stations with Data Recorded in June. 21 21 24 vi 4. 4 Residual Tidal Currents 4. 5 Seiches in Vaca Key 4. 6 The Effects of Friction...

  13. MULTI-PERIOD CAPACITY PLANNING FOR INTEGRATED PRODUCT-PROCESS DESIGN

    E-Print Network [OSTI]

    Saitou, Kazuhiro "Kazu"

    the quality of the finished products and minimize the total production cost dur- ing the periods. The product the quality of the 415 #12;finished products and minimizes the total cost of production. The product quality and operating costs of a production facility and the quality of finished prod- ucts. Given forecasted market

  14. Autophagic response of higher plant cells to a prolonged period of sucrose deprivation

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    , sudden temperature drop, water stress or the decrease of the circadian light period diminishes the rates in 3! P nuclear magnetic resonance (NMR) experi- ments. Cells harvested from the culture medium were acid (PCA) extraction (Roby et aL, 1987), sucrose and starch determi- nations (Journet et al., 1986

  15. Real-time Scheduling of periodic tasks in a monoprocessor system with rechargeable energy storage

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Real-time Scheduling of periodic tasks in a monoprocessor system with rechargeable energy storage-time computing system that is powered through a renewable energy storage device. In this context, two constraints for the properties of the energy source, capacity of the energy storage as well as energy consumption of the tasks

  16. A MEDIEVAL WARM PERIOD l)13 C RECORD FROM THE GAURA CU MUSCA CAVE, SW ROMANIA

    E-Print Network [OSTI]

    Forray, Ferenc

    A MEDIEVAL WARM PERIOD l)13 C RECORD FROM THE GAURA CU MUSCA CAVE, SW ROMANIA Bogdan P. ONAC1 · 2, Romania (2) School of Geosciences, University of South Florida, 4202 E. Fowler Ave., NES 107, Tampa, FL and Romania. B. Geological map of the region {modified fromlancu et al., 1995). The mapof the Gaura cu Musca

  17. POSSIBLE DISINTEGRATING SHORT-PERIOD SUPER-MERCURY ORBITING KIC 12557548

    E-Print Network [OSTI]

    Chiang, E.

    We report on the discovery of stellar occultations, observed with Kepler, which recur periodically at 15.685 hr intervals, but which vary in depth from a maximum of 1.3% to a minimum that can be less than 0.2%. The star ...

  18. Proceedings Published 2007 by the American Chemical Society Double Direct Templating of Periodically

    E-Print Network [OSTI]

    Braun, Paul

    of Periodically Nanostructured Inorganic Hollow Microspheres Paul V. Braun, Alejandro Wolosiuk, Dongyeon Son, Dara, and Frederick Seitz Materials Research Laboratory, Urbana, IL 61801 INTRODUCTION Hollow capsules are both technologically and scientifically interesting. `Smart' nano and micro containers could lead to structures

  19. Double Direct Templating of Periodically Nanostructured ZnS Hollow Microspheres

    E-Print Network [OSTI]

    Braun, Paul

    Double Direct Templating of Periodically Nanostructured ZnS Hollow Microspheres Alejandro Wolosiuk 61801 Received July 22, 2005; E-mail: pbraun@uiuc.edu Hollow capsules are both technologically and scientifically interesting. "Smart" nano- and microcontainers could lead new catalysts, structures

  20. RESEARCH COUNCILS' INDIVIDUAL MERIT PROMOTION SCHEME INDIVIDUAL MERIT PROMOTION PERIODIC REVIEW

    E-Print Network [OSTI]

    Brierley, Andrew

    GUIDANCE NOTES Please read these guidance notes carefully before completing the form. You may also wish in the development and exploitation of technologies 6. Provide a CV that summarises your career to date; include that have had an impact on your career progression; for example, periods of maternity leave, part

  1. Summary: An Approximately 1.3-Year Periodicity in ap and IMP 8 Solar Wind Observations

    E-Print Network [OSTI]

    Richardson, John

    of geomagnetic activity, the ap index (a measure of p geomagnetic disturbance) is examined to look peak [Paularena et al., 1995]. This agreement t in long-period behavior between a geomagnetic index NASA contract 959203 from JPL to MIT a N (Voyager). One of the authors (AS) currently holds ational

  2. SEARCHES FOR PERIODIC NEUTRINO EMISSION FROM BINARY SYSTEMS WITH 22 AND 40 STRINGS OF ICECUBE

    SciTech Connect (OSTI)

    Abbasi, R.; Aguilar, J. A.; Andeen, K.; Baker, M. [Department of Physics, University of Wisconsin, Madison, WI 53706 (United States); Abdou, Y. [Department of Physics and Astronomy, University of Gent, B-9000 Gent (Belgium); Abu-Zayyad, T. [Department of Physics, University of Wisconsin, River Falls, WI 54022 (United States); Ackermann, M.; Bazo Alba, J. L. [DESY, D-15735 Zeuthen (Germany); Adams, J. [Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch (New Zealand); Ahlers, M. [Department of Physics, University of Oxford, 1 Keble Road, Oxford OX1 3NP (United Kingdom); Allen, M. M. [Department of Physics, Pennsylvania State University, University Park, PA 16802 (United States); Altmann, D. [III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen (Germany); Auffenberg, J. [Department of Physics, University of Wuppertal, D-42119 Wuppertal (Germany); Bai, X. [Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, DE 19716 (United States); Barwick, S. W. [Department of Physics and Astronomy, University of California, Irvine, CA 92697 (United States); Bay, R. [Department of Physics, University of California, Berkeley, CA 94720 (United States); Beattie, K. [Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (United States); Beatty, J. J. [Department of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, OH 43210 (United States); Bechet, S. [Universite Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels (Belgium); Becker, J. K. [Fakultaet fuer Physik and Astronomie, Ruhr-Universitaet Bochum, D-44780 Bochum (Germany); Collaboration: IceCube Collaboration; and others

    2012-04-01T23:59:59.000Z

    In this paper, we present the results of searches for periodic neutrino emission from a catalog of binary systems. Such modulation, observed in the photon flux, would be caused by the geometry of these systems. In the analysis, the period is fixed by these photon observations, while the phase and duration of the neutrino emission are treated as free parameters to be fit with the data. If the emission occurs during {approx}20% or less of the total period, this analysis achieves better sensitivity than a time-integrated analysis. We use the IceCube data taken from 2007 May 31 to 2008 April 5 with its 22 string configuration and from 2008 April 5 to 2009 May 20 with its 40 string configuration. No evidence for neutrino emission is found, with the strongest excess occurring for Cygnus X-3 at 2.1{sigma} significance after accounting for trials. Neutrino flux upper limits for both periodic and time-integrated emission are provided.

  3. What hides behind extended periods of youth unemployment in Bosnia and Herzegovina?

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    What hides behind extended periods of youth unemployment in Bosnia and Herzegovina? Evidence from This paper provides the first empirical analysis on youth unemployment duration in Bosnia and ongoing economic and political reforms, the old economic structure and patterns of em- ployment in Bosnia

  4. QUANTUM ENERGY EXPECTATION IN PERIODIC TIME-DEPENDENT HAMILTONIANS VIA GREEN

    E-Print Network [OSTI]

    QUANTUM ENERGY EXPECTATION IN PERIODIC TIME-DEPENDENT HAMILTONIANS VIA GREEN FUNCTIONS C´ESAR R. DE. Introduction 1 2. Average Energy and Green Functions 4 3. Applications 10 3.1. Time-Independent Hamiltonians 10(t). For each positive and discrete observable A (which we call a probe energy), we derive a formula

  5. Ultrafast laser induced periodic sub-wavelength aluminum surface structures and nanoparticles in air and liquids

    SciTech Connect (OSTI)

    Kuladeep, Rajamudili; Dar, Mudasir H.; Rao, D. Narayana, E-mail: dnrsp@uohyd.ac.in, E-mail: dnr-laserlab@yahoo.com [School of Physics, University of Hyderabad, Hyderabad 500046 (India); Deepak, K. L. N. [Department of Physics and Center for Research in Photonics, University of Ottawa, 150 Louis Pasteur, Ottawa K1N6N5, Ontario (Canada)

    2014-09-21T23:59:59.000Z

    In this communication, we demonstrate the generation of laser-induced periodic sub-wavelength surface structures (LIPSS) or ripples on a bulk aluminum (Al) and Al nanoparticles (NPs) by femtosecond (fs) laser direct writing technique. Laser irradiation was performed on Al surface at normal incidence in air and by immersing in ethanol (C{sub 2}H{sub 5}OH) and water (H{sub 2}O) using linearly polarized Ti:sapphire fs laser pulses of ?110 fs pulse duration and ?800?nm wavelength. Field emission scanning electron microscope is utilized for imaging surface morphology of laser written structures and it reveals that the spatial periodicity as well as the surface morphology of the LIPSS depends on the surrounding dielectric medium and also on the various laser irradiation parameters. The observed LIPSS have been classified as low spatial frequency LIPSS which are perpendicularly oriented to the laser polarization with a periodicity from 460 to 620?nm and high spatial frequency LIPSS which spectacles a periodicity less than 100?nm with the orientation parallel to the polarization of the incident laser beam. Fabricated colloidal solutions, which contain the Al NPs, were characterized by UV-Vis absorption spectroscopy and transmission electron microscopy (TEM). TEM results reveal the formation of internal cavities in Al NPs both in ethanol and water. Formation mechanism of LIPSS and cavities inside the nanoparticles are discussed in detail.

  6. Periodic equivalence ratio modulation method and apparatus for controlling combustion instability

    DOE Patents [OSTI]

    Richards, George A. (Morgantown, WV); Janus, Michael C. (Baltimore, MD); Griffith, Richard A. (Morgantown, WV)

    2000-01-01T23:59:59.000Z

    The periodic equivalence ratio modulation (PERM) method and apparatus significantly reduces and/or eliminates unstable conditions within a combustion chamber. The method involves modulating the equivalence ratio for the combustion device, such that the combustion device periodically operates outside of an identified unstable oscillation region. The equivalence ratio is modulated between preselected reference points, according to the shape of the oscillation region and operating parameters of the system. Preferably, the equivalence ratio is modulated from a first stable condition to a second stable condition, and, alternatively, the equivalence ratio is modulated from a stable condition to an unstable condition. The method is further applicable to multi-nozzle combustor designs, whereby individual nozzles are alternately modulated from stable to unstable conditions. Periodic equivalence ratio modulation (PERM) is accomplished by active control involving periodic, low frequency fuel modulation, whereby low frequency fuel pulses are injected into the main fuel delivery. Importantly, the fuel pulses are injected at a rate so as not to affect the desired time-average equivalence ratio for the combustion device.

  7. Attractiveness of periodic orbits in parametrically forced systems with time-increasing friction

    E-Print Network [OSTI]

    Bartuccelli, Michele

    Attractiveness of periodic orbits in parametrically forced systems with time- increasing friction with time-increasing friction Michele Bartuccelli,1,a) Jonathan Deane,1,b) and Guido Gentile2,c) 1 oscillator in the presence of friction, and study numerically how time-varying friction affects the dynamics

  8. Solid State Division progress report for period ending September 30, 1990

    SciTech Connect (OSTI)

    Green, P.H.; Hinton, L.W. (eds.)

    1991-03-01T23:59:59.000Z

    This report covers research progress in the Solid State Division from April 1, 1989, to September 30, 1990. During this period, division research programs were significantly enhanced by the restart of the High-Flux Isotope Reactor (HFIR) and by new initiatives in processing and characterization of materials.

  9. Final report on Project ESEPP (LEAP+) for the period January 1, 1996 - August 1, 1998

    SciTech Connect (OSTI)

    Henley, Vernard Jr.

    2000-03-10T23:59:59.000Z

    This is the final report for the Project to Enhance Student Science and Engineering Preparation at the Pre-College Level (Project ESEPP) for the period from January 1, 1996 through August 1, 1998. This report summarizes the accomplishments of the program and its ability to meet the objectives described in the original proposal (1990).

  10. Testing eccentricity pumping mechanisms to model eccentric long period sdB binaries with MESA

    E-Print Network [OSTI]

    Vos, Joris; Marchant, Pablo; Van Winckel, Hans

    2015-01-01T23:59:59.000Z

    Hot subdwarf-B stars in long-period binaries are found to be on eccentric orbits, even though current binary-evolution theory predicts those objects to be circularised before the onset of Roche-lobe overflow (RLOF). We aim to find binary-evolution mechanisms that can explain these eccentric long-period orbits, and reproduce the currently observed period-eccentricity diagram. Three different processes are considered; tidally-enhanced wind mass-loss, phase-dependent RLOF on eccentric orbits and the interaction between a circumbinary disk and the binary. The binary module of the stellar-evolution code MESA (Modules for Experiments in Stellar Astrophysics) is extended to include the eccentricity-pumping processes. The effects of different input parameters on the final period and eccentricity of a binary-evolution model are tested with MESA. The end products of models with only tidally-enhanced wind mass-loss can indeed be eccentric, but these models need to lose too much mass, and invariably end up with a helium ...

  11. Ultrasonic wave propagation through a layer of spherical inclusions with random of periodic arrangements 

    E-Print Network [OSTI]

    Day, Nathan Allan

    1994-01-01T23:59:59.000Z

    of inclusions with both periodic and random arrangements. Transducer sets having center frequencies of 0.25 MHz to 2.25 MHz were used for the tests. The rigid-body resonance of the particles was observed. The frequency of this resonance was found to be dependent...

  12. Report on the Implementation of Periodic Natural Phenomena Hazards Assessment Reviews at Department of Energy Sites

    Broader source: Energy.gov [DOE]

    This report provides the results of a review conducted by the Office of Nuclear Safety (AU-30) of the implementation of periodic Natural Phenomena Hazards (NPH) assessment reviews by sites reporting to the National Nuclear Security Administration (NNSA), and the Offices of Environmental Management, Nuclear Energy, and Science.

  13. Weekly Security Incident Log Period of Aug 12 -Aug 18, 2013

    E-Print Network [OSTI]

    2013-001248 THOMPSON ROAD Gas leak Security , Toronto Fire, Toronto Police, and Occupational Health and Safety responded to a report of a natural gas leak in the area of the Life Science BuildingWeekly Security Incident Log Period of Aug 12 - Aug 18, 2013 Incident No. Reported Date Building

  14. Weekly Security Incident Log Period of Feb 6 -Feb 12, 2012

    E-Print Network [OSTI]

    Gas leak Security and Toronto Fire responded to a report of a natural gas odour in B-wing. TorontoWeekly Security Incident Log Period of Feb 6 - Feb 12, 2012 Incident No. Reported Date Building\\Const. Security, York Fire Prevention and Toronto Fire responded to a fire alarm. The cause of the alarm

  15. Weekly Security Incident Log Period of Jul 9 -Jul 15, 2012

    E-Print Network [OSTI]

    and Safety responded to a report of a natural gas odour in the building. The building was checked and no natural gas was found. Toronto Fire determined that all was in order. 7/12/2012 07:31 AM HazardousWeekly Security Incident Log Period of Jul 9 - Jul 15, 2012 Incident No. Reported Date Building

  16. Weekly Security Incident Log Period of Apr 29 -May 5, 2013

    E-Print Network [OSTI]

    2013-000845 YORK LANES RETAIL Gas leak Security, Toronto Fire and Enbridge Gas responded to a report of a natural gas odour in the building. The source of the odour was located in a restaurant kitchen. EnbridgeWeekly Security Incident Log Period of Apr 29 - May 5, 2013 Incident No. Reported Date Building

  17. Copyright 2009 by ASME Laminar fully developed flow in streamwise-periodic

    E-Print Network [OSTI]

    Bahrami, Majid

    . Rough tubes or channels with ribs on their surfaces are examples of streamwise-periodic ducts which for straight channels of arbitrary cross-section, compact models are developed for linear and sinusoidal wall) very tall channels and compared with the available experimental and numerical data in the literature

  18. Periodic Broadcast with Dynamic Server Selection Ewa Kusmierek, Yingping Lu and David H.C. Du

    E-Print Network [OSTI]

    Minnesota, University of

    1 Periodic Broadcast with Dynamic Server Selection Ewa Kusmierek, Yingping Lu and David H.C. Du requirements and resource availability problem. Dynamic service selection enables clients to choose a server offering the best performance. Proper server selection is especially important for video streaming over

  19. X-ray periodicities in sources observed by the RXTE ASM

    E-Print Network [OSTI]

    Shivamoggi, Vasudha B

    2005-01-01T23:59:59.000Z

    The X-ray intensities measured from 230 X-ray sources observed by the RXTE All-Sky Monitor (ASM) were analyzed for periodic behavior. The ASM has been observing sources for nine years in the 1.5-12 keV energy range. In ...

  20. Periodic orbit analysis of a system with continuous symmetry - a tutorial

    E-Print Network [OSTI]

    Nazmi Burak Budanur; Daniel Borrero-Echeverry; Predrag Cvitanovi?

    2015-02-06T23:59:59.000Z

    Dynamical systems with translational or rotational symmetry arise frequently in studies of spatially extended physical systems, such as Navier-Stokes flows on periodic domains. In these cases, it is natural to express the state of the fluid in terms of a Fourier series truncated to a finite number of modes. Here, we study a 4-dimensional two-mode SO(2)-equivariant model of this type, the smallest possible truncation that retains the symmetry but is high-dimensional enough to allow for chaotic dynamics. A crucial step in the analysis of such a system is symmetry reduction. We use the model to illustrate different symmetry-reduction techniques. Its relative equilibria are conveniently determined by rewriting the dynamics in terms of a symmetry-invariant polynomial basis. However, for the analysis of its chaotic dynamics, the `method of slices', which is applicable to very high-dimensional problems, is preferable. We show that a Poincar\\'e section taken on the `slice' can be used to further reduce this flow to what is for all practical purposes a unimodal map. This enables us to systematically determine all relative periodic orbits and their symbolic dynamics up to any desired period. We then present cycle averaging formulas adequate for systems with continuous symmetry and use them to compute dynamical averages using relative periodic orbits. The convergence of such computations is discussed.

  1. HTGR gas-turbine program. Semiannual progress report for period ending March 31, 1980

    SciTech Connect (OSTI)

    Not Available

    1982-01-01T23:59:59.000Z

    This report describes the conceptual design and analysis performed by General Atomic Company and its subcontractors for the US Department of Energy on the direct cycle gas turbine high-temperature gas-cooled reactor. The primary accomplishments for this period were cost reduction studies, turbomachinery failure analysis, and alternate plant concept evaluation.

  2. Is the apparent period-doubling in Blazhko stars actually an illusion?

    E-Print Network [OSTI]

    Bryant, Paul H

    2015-01-01T23:59:59.000Z

    It is known that the light curves of many Blazhko stars exhibit intervals in which successive pulsation maxima alternate between two levels in a way that is characteristic of period-doubling. In addition, hydrodynamical models of these stars have clearly demonstrated period-doubling bifurcations. As a result, it is now generally accepted that these stars do indeed exhibit period-doubling. Here we present strong evidence that this assumption is incorrect. The alternating peak heights likely result from the presence of one or more near-resonant modes which appear in the stellar spectra and are significantly offset from 3/2 times the fundamental frequency. A previous explanation for the presence of these peaks is shown to be inadequate. The phase-slip of the dominant near-resonant peak in RR Lyr is shown to be fully correlated with the parity of the observed alternations, providing further strong evidence that the process is nonresonant and cannot be characterized as period-doubling. The dominant near-resonant p...

  3. Post Common Envelope Binaries from SDSS - III. Seven new orbital periods

    E-Print Network [OSTI]

    Rebassa-Mansergas, A; Schreiber, M R; Southworth, J; Schwope, A D; Gomez-Moran, A Nebot; Aungwerojwit, A; Rodríguez-Gil, P; Karamanavis, V; Krumpe, M; Tremou, E; Schwarz, R; Staude, A; Vogel, J

    2008-01-01T23:59:59.000Z

    We present follow-up spectroscopy and photometry of 11 post common envelope binary (PCEB) candidates identified from multiple Sloan Digital Sky Survey (SDSS) spectroscopy in an earlier paper. Radial velocity measurements using the \\Lines{Na}{I}{8183.27,8194.81} absorption doublet were performed for nine of these systems and provided measurements of six orbital periods in the range $\\Porb= 2.7-17.4$ h. Three PCEB candidates did not show significant radial velocity variations in the follow-up data, and we discuss the implications for the use of SDSS spectroscopy alone to identify PCEBs. Differential photometry confirmed one of our spectroscopic orbital periods and provided one additional \\Porb measurement. Binary parameters are estimated for the seven objects for which we have measured the orbital period and the radial velocity amplitude of the low-mass companion star, $K_\\mathrm{sec}$. So far, we have published nine SDSS PCEBs orbital periods, all of them $\\Porb1$ day, and that during the common envelope phase...

  4. Post Common Envelope Binaries from SDSS - III. Seven new orbital periods

    E-Print Network [OSTI]

    A. Rebassa-Mansergas; B. T. Gaensicke; M. R. Schreiber; J. Southworth; A. D. Schwope; A. Nebot Gomez-Moran; A. Aungwerojwit; P. Rodriguez-Gil; V. Karamanavis; M. Krumpe; E. Tremou; R. Schwarz; A. Staude; J. Vogel

    2008-08-15T23:59:59.000Z

    We present follow-up spectroscopy and photometry of 11 post common envelope binary (PCEB) candidates identified from multiple Sloan Digital Sky Survey (SDSS) spectroscopy in an earlier paper. Radial velocity measurements using the \\Lines{Na}{I}{8183.27,8194.81} absorption doublet were performed for nine of these systems and provided measurements of six orbital periods in the range $\\Porb= 2.7-17.4$ h. Three PCEB candidates did not show significant radial velocity variations in the follow-up data, and we discuss the implications for the use of SDSS spectroscopy alone to identify PCEBs. Differential photometry confirmed one of our spectroscopic orbital periods and provided one additional \\Porb measurement. Binary parameters are estimated for the seven objects for which we have measured the orbital period and the radial velocity amplitude of the low-mass companion star, $K_\\mathrm{sec}$. So far, we have published nine SDSS PCEBs orbital periods, all of them $\\Porb1$ day, and that during the common envelope phase the orbital energy of the binary star is maybe less efficiently used to expell the envelope than frequently assumed.

  5. Quarterly RCRA Groundwater Monitoring Data for the Period April Through June 2006

    SciTech Connect (OSTI)

    Hartman, Mary J.

    2006-11-01T23:59:59.000Z

    This report provides information about RCRA groundwater monitoring for the period April through June 2006. Seventeen RCRA sites were sampled during the reporting quarter. Sampled sites include seven monitored under groundwater indicator evaluation (''detection'') programs, eight monitored under groundwater quality assessment programs, and two monitored under final-status programs.

  6. Differential and Integral Equations Volume...., Number....., pp. N-SPECIES COMPETITION IN A PERIODIC CHEMOSTAT

    E-Print Network [OSTI]

    Wolkowicz, Gail S. K.

    , the single-species growth model, has a threshold between global extinction and uniform persistenceDifferential and Integral Equations Volume...., Number....., pp. N-SPECIES COMPETITION is proved and then applied to models of single-species growth and n-species competition in a periodically

  7. ccsd-00082860,version1-28Jun2006 A periodic microfluidic bubbling oscillator

    E-Print Network [OSTI]

    Boyer, Edmond

    &Gamble). For the dispersed gas phase we use nitrogen supplied from a pressurized tank via a pressure reduction valve microfoams in lab-on-a-chip systems. In this letter we will show the generation of a micro- foam at constant input parameters both gas flow rate and bub- ble volume show a large periodic oscillation. We can

  8. Local field enhancement on metallic periodic surface structures produced by femtosecond laser pulses

    SciTech Connect (OSTI)

    Ionin, Andrei A; Kudryashov, Sergei I; Ligachev, A E; Makarov, Sergei V; Mel'nik, N N; Rudenko, A A; Seleznev, L V; Sinitsyn, D V; Khmelnitskii, R A [P N Lebedev Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)

    2013-04-30T23:59:59.000Z

    Periodic surface structures on aluminium are produced by femtosecond laser pulses for efficient excitation of surface electromagnetic waves using a strong objective (NA = 0.5). The local electromagnetic field enhancement on the structures is measured using the technique of surface-enhanced Raman scattering from pyridine molecules. (extreme light fields and their applications)

  9. Weekly Security Incident Log Period of May 14 -May 20, 2012

    E-Print Network [OSTI]

    Weekly Security Incident Log Period of May 14 - May 20, 2012 Incident No. Reported Date Building-000955 PARKING GARAGE - ARBORETUM LANE (PS2) Mech\\Electrical Security responded to a report that an automotive York Security responded to a report of an unknown male causing a disturbance in the food court

  10. Sensitivity of Swept-Wing, Boundary-Layer Transition to Spanwise-Periodic Discrete Roughness Elements

    E-Print Network [OSTI]

    West, David Edward

    2014-12-12T23:59:59.000Z

    Micron-sized, spanwise-periodic, discrete roughness elements (DREs) were applied to and tested on a 30° swept-wing model in order to study their effects on boundary-layer transition in flight where stationary crossflow waves are the dominant...

  11. Periodically Controlled Hybrid Systems Verifying A Controller for An Autonomous Vehicle

    E-Print Network [OSTI]

    Murray, Richard M.

    Periodically Controlled Hybrid Systems Verifying A Controller for An Autonomous Vehicle Tichakorn Hybrid Au- tomata (PCHA) for describing a class of hybrid control systems. In a PCHA, control actions of the planner-controller subsystem of an autonomous ground vehicle, and in deriving geometric properties

  12. UC Berkeley Heat/Ventilation Curtailment Period DECEMBER 24, 2011 through JANUARY 1, 2012

    E-Print Network [OSTI]

    California at Irvine, University of

    UC Berkeley Heat/Ventilation Curtailment Period DECEMBER 24, 2011 through JANUARY 1, 2012 Each year and January 1, 2012 in order to conserve energy, most campus buildings will be closed and heat and ventilation://hrweb.berkeley.edu/ for more information. Barrows Hall BUILDINGS SCHEDULED TO BE WITHOUT HEAT/VENTILATION Bechtel Engineering

  13. All-sky search for periodic gravitational waves in the full S5 LIGO data

    E-Print Network [OSTI]

    Barsotti, Lisa

    We report on an all-sky search for periodic gravitational waves in the frequency band 50–800 Hz and with the frequency time derivative in the range of 0 through -6×10[superscript -9]??Hz/s. Such a signal could be produced ...

  14. Switching periodic membranes via pattern transformation and shape memory Jongmin Shim,b

    E-Print Network [OSTI]

    Switching periodic membranes via pattern transformation and shape memory effect Jie Li,a Jongmin in shape memory polymer (SMP) membranes consisting of a hexagonal array of micron-sized circular holes a stamp. In both scenarios, the original color displays can be recovered. Introduction Shape memory

  15. Reversible ratchets as Brownian particles in an adiabatically changing periodic potential Juan M. R. Parrondo

    E-Print Network [OSTI]

    Parrondo, Juan M.R.

    Reversible ratchets as Brownian particles in an adiabatically changing periodic potential Juan M. R of particles is induced without any energy consumption. These cycles can be called reversible ratchets called ratch- ets, since they are somehow inspired by the discussion in Ref. 16 of a ratchet working

  16. Chaotic Hamiltonian ratchets for pulsed periodic double-well potentials: Classical correlations and the ratchet current

    E-Print Network [OSTI]

    Jonckheere, Thibaut

    Chaotic Hamiltonian ratchets for pulsed periodic double-well potentials: Classical correlations and the ratchet current N. A. C. Hutchings,1 M. R. Isherwood,1 T. Jonckheere,2 and T. S. Monteiro1 1 Department, ratchet currents, and time scales of a new ratchet in a fully chaotic Hamiltonian system, introduced

  17. Ratchet Effects Induced by Terahertz Radiation in Heterostructures with a Lateral Periodic Potential

    E-Print Network [OSTI]

    Ganichev, Sergey

    Ratchet Effects Induced by Terahertz Radiation in Heterostructures with a Lateral Periodic of the Seebeck ratchet effect. The effect is measured in semiconductor heterostructures with a one ratchet effect, we observe a photon helicity dependent response and propose a microscopic mechanism

  18. Spectral correlations in systems undergoing a transition from periodicity to disorder T. Dittrich

    E-Print Network [OSTI]

    Pollner, Péter

    ! for the periodic case. The theoretical results agree very well with the spectral statistics obtained numerically Departamento de F� â?? sica, Universidad de los Andes, A.A. 4976, Santafe â?? de Bogota â?? , Colombia B. Mehlig 25 November 1998! We study the spectral statistics for extended yet finite quasi

  19. Asymptotic Ruin Probabilities of the Lvy Insurance Model under Periodic Taxation

    E-Print Network [OSTI]

    Tang, Qihe

    and that taxes are paid at a ...xed rate 2 [0; 1) whenever S is at a running maximum (called the loss-called loss-carry-forward taxation, meaning that taxes are paid at a certain ...xed rate immediately when the surplus of the company is at a running maximum. In this paper we assume periodic taxation under which

  20. SINE WAVE CANCELATION THROUGH A PERIODIC TRANSFER FUNCTION Pierre Granjon, Christine Servire

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    . Moreover, the transfer function of this process can be shown periodic, and therefore time-varying. Thus we, a stator coil is supplied with a current i(t). It generates an additional vibration signal v(t), which the error e(t). It is measured with an accelerometer on the stator frame. i(t) m(t) d(t) v

  1. Dietary modifications of lipid metabolism in canine plasma during gestation, lactation, and the neonatal period

    E-Print Network [OSTI]

    Wright, Angela Shanna

    2004-01-01T23:59:59.000Z

    /Lo), linseed oil (Hi/Lo), low (Lo/Mod) or high (Lo/Hi) menhaden fish oil. Plasma was collected on days 0, 3, 7, 14, 28, 42, and 56 of gestation, days 10 and 28 of lactation, and days 4, 10, 16, 28, 70, and 84 of the neonatal period. Electrophoresis was run...

  2. Cornell-Bahir Dar University Master's Program Report for the period November 2007 to February 2011

    E-Print Network [OSTI]

    Walter, M.Todd

    1 Cornell-Bahir Dar University Master's Program Report for the period November 2007 to February 2011 The Cornell University/Bahir Dar University (CU/BDU) Master's of Professional Studies (MPS. In January 2010 another 14 students came to the Bahir Dar campus. This is the first graduate degree program

  3. Math 421, Fourier Analysis Suppose we sample a periodically varying quantity such as an intensity or

    E-Print Network [OSTI]

    Offin, Dan

    Math 421, Fourier Analysis Suppose we sample a periodically varying quantity such as an intensity tone 200 400 600 800 100012001400 5 10 15 20 25 The Fourier analysis of the tone Which button was pressed? A general method was found by Jean Baptiste Joseph Fourier (1768 - 1830) in 1807. His method

  4. Subsidence in the Michigan basin produced ~5 km of sedimentation over a period of more

    E-Print Network [OSTI]

    ABSTRACT Subsidence in the Michigan basin produced ~5 km of sedimentation over a period of more a plate tectonic framework for the his- tory of the Michigan basin. INTRODUCTION The Michigan basin of the Michigan basin has led to numerous proposals for basin subsidence mechanisms, including thermal contraction

  5. Solid State Division progress report for period ending March 31, 1992

    SciTech Connect (OSTI)

    Green, P.H.; Hinton, L.W. [eds.

    1992-09-01T23:59:59.000Z

    During this period, the division conducted a broad, interdisciplinary materials research program with emphasis on theoretical solid state physics, superconductivity, neutron scattering, synthesis and characterization of materials, ion beam and laser processing, and the structure of solids and surfaces. The High Flux Isotope Reactor was returned to full operation.

  6. Frictional powders: Ratcheting under periodic strain in 3D , C. T. David2

    E-Print Network [OSTI]

    Luding, Stefan

    and Coulomb friction. In the simplest case visco-elastic rules can be imposed at each contact, differentFrictional powders: Ratcheting under periodic strain in 3D S. Luding1 , C. T. David2 , R. Garcia of friction leads to a transition from ratcheting to shake-down, i.e., the accumulation of strain stops

  7. Periodic Flux Variability of Stars due to the Reflex Doppler Effect Induced by Planetary Companions

    E-Print Network [OSTI]

    Abraham Loeb; B. Scott Gaudi

    2003-03-28T23:59:59.000Z

    Upcoming space-based photometric satellites offer the possibility of detecting continuum flux variability at the micro-magnitude level. We show that the Doppler flux variability induced by the reflex motion of stars due to planetary companions has an amplitude of (3-alpha)K/c, where K is the reflex radial velocity amplitude and alpha is the logarithmic slope of source spectral flux in the observed frequency band. For many of the known close-in planetary systems with periods less than ~0.2 years, the periodic Doppler variability is of order a micromagnitude, and is significant relative to the variability caused by reflected light from the planetary companion. For companions with periods greater than ~0.2 years, the Doppler signal is larger than the reflected light signal. We show that the future photometric satellites should reach the sensitivity to detect this Doppler variability. In particular, the Kepler satellite should have the photon-noise sensitivity to detect at a signal-to-noise ratio > 5, all planets with minimum mass greater than 5 Jupiter masses, and periods less than 0.1 years around the 10,000 main-sequence stars with spectral types A through K and apparent magnitude V<12 in its field-of-view.

  8. Modeling Red Blood Cell and Iron Dynamics in Patients Undergoing Periodic EPO and Iron Treatments

    E-Print Network [OSTI]

    Modeling Red Blood Cell and Iron Dynamics in Patients Undergoing Periodic EPO and Iron Treatments H in the kidneys, that stimulates red blood cell (RBC) production. Without intervention, patients suffer from, erythrocyte, red blood cell, chronic kidney disease, dialysis, iron, neocytolysis, hepcidin, EPO, hemoglobin e

  9. Global Clock, Physical Time Order and Pending Period Analysis in Multiprocessor Systems

    E-Print Network [OSTI]

    Chen, Yunji; Hu, Weiwu

    2009-01-01T23:59:59.000Z

    In multiprocessor systems, various problems are treated with Lamport's logical clock and the resultant logical time orders between operations. However, one often needs to face the high complexities caused by the lack of logical time order information in practice. In this paper, we utilize the \\emph{global clock} to infuse the so-called \\emph{pending period} to each operation in a multiprocessor system, where the pending period is a time interval that contains the performed time of the operation. Further, we define the \\emph{physical time order} for any two operations with disjoint pending periods. The physical time order is obeyed by any real execution in multiprocessor systems due to that it is part of the truly happened operation orders restricted by global clock, and it is then proven to be independent and consistent with traditional logical time orders. The above novel yet fundamental concepts enables new effective approaches for analyzing multiprocessor systems, which are named \\emph{pending period analy...

  10. Small angle neutron scattering on periodically deformed polymers A. R. Rennie

    E-Print Network [OSTI]

    Boyer, Edmond

    765 Small angle neutron scattering on periodically deformed polymers A. R. Rennie Institut für Phys-768 SEPTEMBRE 1984, 1. Introduction. Neutron scattering has proved a useful tool for the investigation of a wide time for a small angle neutron scattering spectrum is several minutes. Obser- vation on rapidly

  11. Globally synchronous ice core volcanic tracers and abrupt cooling during the last glacial period

    E-Print Network [OSTI]

    Price, P. Buford

    Globally synchronous ice core volcanic tracers and abrupt cooling during the last glacial period R ash layers determined by remote optical borehole logging and core assays. We find that the Antarctic. These globally coincident volcanics were associated with abrupt cooling, often simultaneous with onsets or sudden

  12. Einstein@Home all-sky search for periodic gravitational waves in LIGO S5 data

    E-Print Network [OSTI]

    Barsotti, Lisa

    This paper presents results of an all-sky search for periodic gravitational waves in the frequency range [50,1?190]??Hz and with frequency derivative range of ?[-20,1.1]×10[superscript -10]??Hz?s[superscript -1] for the ...

  13. Investigation of long-period fiber gratings induced by high-intensity femtosecond UV laser pulses

    E-Print Network [OSTI]

    Nikogosyan, David N.

    efficiency with that for other existing meth- ods of recording. We studied the temperature sensing properties changes in the fiber core induced by thermal heating, were developed. They include the use of a CO2 laserInvestigation of long-period fiber gratings induced by high-intensity femtosecond UV laser pulses

  14. EXTENDING THE CONCEPTS OF RETURN PERIOD AND RETURN LEVEL TO A CHANGING CLIMATE

    E-Print Network [OSTI]

    Katz, Richard

    -Stationarity in Extremes (3) Risk Communication under Stationarity (4) Risk Communication under Climate Change (5;#12;(4) Risk Communication Under Climate Change · One Approach -- "Effective" return level Permit "return levelEXTENDING THE CONCEPTS OF RETURN PERIOD AND RETURN LEVEL TO A CHANGING CLIMATE Rick Katz Institute

  15. Transiting Planets with LSST II. Period Detection of Planets Orbiting 1 Solar Mass Hosts

    E-Print Network [OSTI]

    Jacklin, Savannah R; Pepper, Joshua; Stassun, Keivan G

    2015-01-01T23:59:59.000Z

    The Large Synoptic Survey Telescope (LSST) will photometrically monitor ~1 billion stars for ten years. The resulting light curves can be used to detect transiting exoplanets. In particular, as demonstrated by Lund et al. (2015), LSST will probe stellar populations currently undersampled in most exoplanet transit surveys, including out to extragalactic distances. In this paper we test the efficiency of the box-fitting least-squares (BLS) algorithm for accurately recovering the periods of transiting exoplanets using simulated LSST data. We model planets with a range of radii orbiting a solar-mass star at a distance of 7 kpc, with orbital periods ranging from 0.5 to 20 d. We find that typical LSST observations will be able to reliably detect Hot Jupiters with periods shorter than ~3 d. At the same time, we find that the LSST deep drilling cadence is extremely powerful: the BLS algorithm successfully recovers at least 30% of sub-Saturn-size exoplanets with orbital periods as long as 20 d.

  16. Millihertz quasi-periodic oscillations and thermonuclear bursts from Terzan 5: A showcase of burning regimes

    E-Print Network [OSTI]

    Linares, M.

    We present a comprehensive study of the thermonuclear bursts and millihertz quasi-periodic oscillations (mHz QPOs) from the neutron star (NS) transient and 11 Hz X-ray pulsar IGR J17480–2446, located in the globular cluster ...

  17. Development/Plasticity/Repair A Refractory Period for Rejuvenating GABAergic Synaptic

    E-Print Network [OSTI]

    Gruner, Daniel S.

    Development/Plasticity/Repair A Refractory Period for Rejuvenating GABAergic Synaptic Transmission and Ocular Dominance Plasticity with Dark Exposure Shiyong Huang,1* Yu Gu,2* Elizabeth M. Quinlan,2 Dark exposure initiated in adulthood reactivates robust ocular dominance plasticity in the visual

  18. Modeling Alveolar Volume Changes During Periodic Breathing in Heterogeneously Ventilated Lungs

    E-Print Network [OSTI]

    Jeavons, Peter

    Modeling Alveolar Volume Changes During Periodic Breathing in Heterogeneously Ventilated Lungs SARA-uniform breathing pattern for a lung with an inhomogeneous gas distribution, such as that observed in some subjects of irregular breathing caused by small, poorly ventilated regions of the lung. Presented here is an extension

  19. The latest... July always seems quiet with the current MSc

    E-Print Network [OSTI]

    Chittka, Lars

    oxygen and low water, and assessing community zonation due to natural barriers like waterfalls worked with Thames21 throughout her MSc is now a Community Learning and Engagement Officer at the London

  20. From: www.tiscali.co.uk/technology/ LATEST NEWS

    E-Print Network [OSTI]

    Leigh, David A.

    Consumers test mobile tv-phone Glow-in-the-dark handbag finds keys Solar power to illuminate bus stops Calls

  1. Example of latest techniques for bottom-sludge dredging

    SciTech Connect (OSTI)

    Hamasuna, J.

    1992-03-01T23:59:59.000Z

    Recently in Japan, the biggest problems of the bottom sludge dredging are lack of enough room for dumping areas and preventing water contamination during dredging in terms of environmental aspects. The new dredging system introduced at this time has been developed for the above purposes.

  2. Atmospheric Tides in the Latest Generation of Climate Models

    E-Print Network [OSTI]

    Covey, Curt

    For atmospheric tides driven by solar heating, the database of climate model output used in the most recent assessment report of the Intergovernmental Panel on Climate Change (IPCC) confirms and extends the authors’ earlier ...

  3. MTBE still facing pressure from ethanol under latest fuel proposal

    SciTech Connect (OSTI)

    Lucas, A.

    1994-01-26T23:59:59.000Z

    The US EPA's finalized reformulated gasoline rule, part of Phase II of the 1990 Clean Air Act, signals a possible turnaround for the sluggish methyl tert-butyl ether (MTBE) market. But if a 30% renewable fuels proposal favoring ethanol passes, pressure could continue for MTBE.

  4. Latest News from Double Chooz Reactor Neutrino Experiment

    E-Print Network [OSTI]

    Masahiro Kuze; for Double Chooz Collaboration

    2011-09-01T23:59:59.000Z

    Double Chooz experiment will search for a disappearance of the reactor neutrinos from Chooz reactor cores in Ardenne, France, in order to detect the yet unknown neutrino oscillation angle \\theta 13. The far detector was completed in 2010 and data-taking has started in spring 2011. Status of data-taking is presented and some performance plots from physics data are shown in this paper for the first time. Also the prospect of experimental sensitivity is presented, in light of recent indication from T2K for a non-zero \\theta 13 value.

  5. Metals recovery from wastes. (Latest citations from Metadex). Published Search

    SciTech Connect (OSTI)

    NONE

    1997-01-01T23:59:59.000Z

    The bibliography contains citations concerning the recovery and recycling or reuse of ferrous and nonferrous metals from various industrial wastes. Types of waste considered include waste water, sludge, scrap, battery waste, and waste liquors. (Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

  6. January 29 Webinar to Highlight the Latest Developments in Energy...

    Office of Environmental Management (EM)

    Solar Robi Robichaud - Wind and Small Hydro Randy Hunsberger - Biomass Kermit Witherbee - Geothermal Amy Hollander - Energy Efficiency "Helping Tribes understand the array of...

  7. Climate Change: The Physical Basis and Latest Results

    ScienceCinema (OSTI)

    None

    2011-10-06T23:59:59.000Z

    The 2007 Assessment Report of the Intergovernmental Panel on Climate Change (IPCC) concludes: "Warming in the climate system is unequivocal." Without the contribution of Physics to climate science over many decades, such a statement would not have been possible. Experimental physics enables us to read climate archives such as polar ice cores and so provides the context for the current changes. For example, today the concentration of CO2 in the atmosphere, the second most important greenhouse gas, is 28% higher than any time during the last 800,000 years. Classical fluid mechanics and numerical mathematics are the basis of climate models from which estimates of future climate change are obtained. But major instabilities and surprises in the Earth System are still unknown. These are also to be considered when the climatic consequences of proposals for geo-engineering are estimated. Only Physics will permit us to further improve our understanding in order to provide the foundation for policy decisions facing the global climate change challenge.

  8. This publication presents the latest research findings on level spread-

    E-Print Network [OSTI]

    Hunt, William F.

    in Urban Stormwater Structural Best Management Practices, AG-588- 01, of the Urban Waterways series treatment of storm- water. It is an excavated, bowl-shaped feature that slows the influent stormwater and describes recommended practices for design- ing, installing, and maintaining these structures. Since 1998

  9. FEMP Presents Latest Training Course on Advanced Energy Savings...

    Energy Savers [EERE]

    and performance matrix in summarizing and assigning risks or responsibilities to the energy service company (ESCO), agency, or both The importance of measurements and...

  10. The Latest Unanticipated Consequence in the Ethanol Fiasco

    E-Print Network [OSTI]

    Griffin, James M.

    to prove too optimistic about gasoline’s future. They do not factor in the substitution to natural gas powered vehi- cles. Because compressed natural gas is likely to be much cheaper than gasoline, it is only a matter of time before...

  11. Recycling tires. (Latest citations from Pollution Abstracts). Published Search

    SciTech Connect (OSTI)

    NONE

    1995-11-01T23:59:59.000Z

    The bibliography contains citations concerning the technology and economic advantages of scrap tire recycling. The application of crumb rubber in the production of asphalt paving, floor-coverings, high performance composites, and other products is described. The production of fuels from scrap tires is also discussed. Legislation which promotes recycling, and the roles of government and the private sector in developing new markets and expanding existing markets are included.(Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

  12. Recycling tires. (Latest citations from Pollution abstracts). Published Search

    SciTech Connect (OSTI)

    Not Available

    1994-01-01T23:59:59.000Z

    The bibliography contains citations concerning the technology and economic advantages of scrap tire recycling. The application of crumb rubber in the production of asphalt paving, floor-coverings, high performance composites, and other products is described. The production of fuels from scrap tires is also discussed. Legislation which promotes recycling, and the roles of government and the private sector in developing new markets and expanding existing markets are included. (Contains a minimum of 76 citations and includes a subject term index and title list.)

  13. Recycling tires. (Latest citations from Pollution abstracts). NewSearch

    SciTech Connect (OSTI)

    Not Available

    1994-11-01T23:59:59.000Z

    The bibliography contains citations concerning the technology and economic advantages of scrap tire recycling. The application of crumb rubber in the production of asphalt paving, floor-coverings, high performance composites, and other products is described. The production of fuels from scrap tires is also discussed. Legislation which promotes recycling, and the roles of government and the private sector in developing new markets and expanding existing markets are included. (Contains a minimum of 83 citations and includes a subject term index and title list.)

  14. Recycling tires. (Latest citations from Pollution Abstracts). Published Search

    SciTech Connect (OSTI)

    NONE

    1996-12-01T23:59:59.000Z

    The bibliography contains citations concerning the technology and economic advantages of scrap tire recycling. The application of crumb rubber in the production of asphalt paving, floor-coverings, high performance composites, and other products is described. The production of fuels from scrap tires is also discussed. Legislation which promotes recycling, and the roles of government and the private sector in developing new markets and expanding existing markets are included.(Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

  15. Refer to website for latest dates The Westin Melbourne

    E-Print Network [OSTI]

    Liley, David

    Identify the relevant information and reports required to make effective financial decisions Consolidate managerial accounting reports and decisions. This program provides relevant accounting and finance participants to practise accounting and finance tasks. Solutions to these activities are also provided

  16. The latest development in Corex production and maintenance performance

    SciTech Connect (OSTI)

    Aswegen, C.M. van; Gregory, J.D.; Loetter, G.J. [Iscor Pretoria Works (South Africa). Corex Plant

    1995-12-01T23:59:59.000Z

    The Corex tower stands 108.6 meters (356 feet) high and includes the reduction shaft and the melter-gasifier where all of the process functions of reduction, gasification and melting are carried out. Indigenous Thabazimbi lump ore is normally charged into the reduction shaft where it is reduced to direct reduced iron (DRI) with an average metallization degree of 93% by means of reduction gas in counterflow. Test campaigns have also demonstrated the suitability and feasibility of charging South African Sishen lump ore, Brazilian pellets and sinter from Newcastle works into the process for the production of high quality hot metal. The Corex process is more flexible compared to a blast furnace in that the burden composition charged to the melter-gasifier can be changed rapidly. This is because the coal and reduced iron is charged separately into the melting zone. A mixture of non-coking local coals are used as the source of energy for melting and as the reducing agent for the Corex reduction shaft.

  17. The latest developments and outlook for hydrogen liquefaction technology

    SciTech Connect (OSTI)

    Ohlig, K.; Decker, L. [Linde Kryotechnik AG, Pfungen, CH-8422 (Switzerland)

    2014-01-29T23:59:59.000Z

    Liquefied hydrogen is presently mainly used for space applications and the semiconductor industry. While clean energy applications, for e.g. the automotive sector, currently contribute to this demand with a small share only, their demand may see a significant boost in the next years with the need for large scale liquefaction plants exceeding the current plant sizes by far. Hydrogen liquefaction for small scale plants with a maximum capacity of 3 tons per day (tpd) is accomplished with a Brayton refrigeration cycle using helium as refrigerant. This technology is characterized by low investment costs but lower process efficiency and hence higher operating costs. For larger plants, a hydrogen Claude cycle is used, characterized by higher investment but lower operating costs. However, liquefaction plants meeting the potentially high demand in the clean energy sector will need further optimization with regard to energy efficiency and hence operating costs. The present paper gives an overview of the currently applied technologies, including their thermodynamic and technical background. Areas of improvement are identified to derive process concepts for future large scale hydrogen liquefaction plants meeting the needs of clean energy applications with optimized energy efficiency and hence minimized operating costs. Compared to studies in this field, this paper focuses on application of new technology and innovative concepts which are either readily available or will require short qualification procedures. They will hence allow implementation in plants in the close future.

  18. analysis latest advances: Topics by E-print Network

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

    in the TMVA ... Becherini, Y; Pita, S; Punch, M 2012-01-01 75 Advanced holographic nondestructive testing system for residual stress analysis CERN Preprints Summary: The design and...

  19. Latest Results from the Cambridge Optical Aperture Synthesis Telescope

    E-Print Network [OSTI]

    Young, John

    autoguider sensors. 2. Imaging the disks of M giants and supergiants 2.1. Results from monolithic telescopes are representations of the disk plus hotspot(s) model that best fits the measurements. Contours are plotted from 5

  20. Ultrafiltration. (Latest citations from the NTIS bibliographic database). Published Search

    SciTech Connect (OSTI)

    Not Available

    1994-12-01T23:59:59.000Z

    The bibliography contains citations concerning ultrafiltration, the separation of colloids or fine solid materials by filtration through microporous or semi-permeable materials. Citations discuss the use of the ultrafiltration process for removing dissolved toxic metals from groundwater, production of food-grade protein, treating kraft black liquor from pulp and paper processing, decontamination of low-level radioactive waste water, desalination, and hemodialysis. Topics also include ultrafiltration equipment and membrane descriptions. Procedures for preventing fouling and the cleaning of the filtration materials and membranes are also presented. (Contains a minimum of 133 citations and includes a subject term index and title list.)

  1. Ultrafiltration. (Latest citations from the NTIS Bibliographic database). Published Search

    SciTech Connect (OSTI)

    Not Available

    1993-12-01T23:59:59.000Z

    The bibliography contains citations concerning ultrafiltration, the separation of colloids or fine solid materials by filtration through microporous or semi-permeable materials. Citations discuss the use of the ultrafiltration process for removing dissolved toxic metals from groundwater, production of food-grade protein, treating kraft black liquor from pulp and paper processing, decontamination of low-level radioactive waste water, desalination, and hemodialysis. Topics also include ultrafiltration equipment and membrane descriptions. Procedures for preventing fouling and the cleaning of the filtration materials and membranes are also presented. (Contains a minimum of 116 citations and includes a subject term index and title list.)

  2. Ultrafiltration. (Latest citations from the NTIS bibliographic database). Published Search

    SciTech Connect (OSTI)

    NONE

    1995-12-01T23:59:59.000Z

    The bibliography contains citations concerning ultrafiltration, the separation of colloids or fine solid materials by filtration through microporous or semi-permeable materials. Citations discuss the use of the ultrafiltration process for removing dissolved toxic metals from groundwater, production of food-grade protein, treating kraft black liquor from pulp and paper processing, decontamination of low-level radioactive waste water, desalination, and hemodialysis. Topics also include ultrafiltration equipment and membrane descriptions. Procedures for preventing fouling and the cleaning of the filtration materials and membranes are also presented. (Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

  3. The Latest Unanticipated Consequence in the Ethanol Fiasco 

    E-Print Network [OSTI]

    Griffin, James M.

    2013-01-01T23:59:59.000Z

    Mandated Ethanol Production E10 Blend Wall Source: U.S. Department of E ergy. En rgy I formation Administration. 2007. Annual Energy Outlook 2007. Washington, D.C.: Department of Energy. The 2007 ethanol mandates were based upon faulty gasoline... Blend Wall Source: U.S. Department of Energy. Energy Information Administration. 2013. Annual Energy Outlook 2013. Washington, D.C.: Department of Energy. ABOUT THE MOSBACHER INSTITUTE The Mosbacher Institute was founded in 2009 to honor Robert A...

  4. Deforestation. (Latest citations from the NTIS Bibliographic database). Published Search

    SciTech Connect (OSTI)

    Not Available

    1993-09-01T23:59:59.000Z

    The bibliography contains citations concerning deforestation. Citations include forest destruction methods, effects on global warming, pollution effects, forestry economics, and environmental consequences. Analysis of deforestation in the United States, Europe, and developing countries is discussed. Methods to analyze deforestation, including the use of satellite remote sensing, are described. (Contains a minimum of 173 citations and includes a subject term index and title list.)

  5. arms control latest: Topics by E-print Network

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

    mechanical arm control system and some of the lines of thought which led to this design. In particular, the paper discusses the basic systme required in order for the arm to...

  6. Latest Innovations from NREL in the United States

    SciTech Connect (OSTI)

    Noun, R. J.

    2011-01-01T23:59:59.000Z

    For more than 30 years, the National Renewable Energy Laboratory (NREL) has advanced the science of renewable energy and energy efficiency technologies while building the capabilities to guide rapid deployment of commercial applications. Today, NREL is at the epicenter for the transformation of our energy systems - enabling a future of sustainable energy systems based on clean, cost-effective, and secure resources. The laboratory has recently made significant technological advances, including in the buildings, electricity, and geothermal fields.

  7. A Livestream with our Latest Nobel Prize Winner

    Broader source: Energy.gov [DOE]

    Dr. Perlmutter presents, “Supernovae, Dark Energy and the Accelerating Universe: How the Energy Department Helped to Win (yet another) Nobel Prize.”

  8. Stirling engines. (Latest citations from the Aerospace database). Published Search

    SciTech Connect (OSTI)

    Not Available

    1993-09-01T23:59:59.000Z

    The bibliography contains citations concerning fuel consumption, engine design and testing, computerized simulation, and lubrication systems relative to the Stirling cycle engine. Solar energy conversion research, thermodynamic efficiency, economics, and utilization for power generation and automobile engines are included. Materials used in Stirling engines are briefly evaluated. (Contains 250 citations and includes a subject term index and title list.)

  9. Stirling engines. (Latest citations from the COMPENDEX database). Published Search

    SciTech Connect (OSTI)

    Not Available

    1992-12-01T23:59:59.000Z

    The bibliography contains citations concerning Stirling engine technology. Design, development, performance testing, and applications are discussed, including power generation, cryogenic cooling, solar power applications, and ground and marine vehicles. The citations also examine engine component design and material testing results. (Contains 250 citations and includes a subject term index and title list.)

  10. Energy star. (Latest citations from the Computer database). Published Search

    SciTech Connect (OSTI)

    NONE

    1995-01-01T23:59:59.000Z

    The bibliography contains citations concerning a collaborative effort between the Environmental Protection Agency (EPA) and private industry to reduce electrical power consumed by personal computers and related peripherals. Manufacturers complying with EPA guidelines are officially recognized by award of a special Energy Star logo, and are referred to in official documents as a vendor of green computers. (Contains a minimum of 234 citations and includes a subject term index and title list.)

  11. Energy star. (Latest citations from the Computer database). Published Search

    SciTech Connect (OSTI)

    NONE

    1995-10-01T23:59:59.000Z

    The bibliography contains citations concerning a collaborative effort between the Environmental Protection Agency (EPA) and private industry to reduce electrical power consumed by personal computers and related peripherals. Manufacturers complying with EPA guidelines are officially recognized by award of a special Energy Star logo, and are referred to in official documents as a vendor of green computers. (Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

  12. Energy star. (Latest citations from the Computer database). Published Search

    SciTech Connect (OSTI)

    NONE

    1997-02-01T23:59:59.000Z

    The bibliography contains citations concerning a collaborative effort between the Environmental Protection Agency (EPA) and private industry to reduce electrical power consumed by personal computers and related peripherals. Manufacturers complying with EPA guidelines are officially recognized by award of a special Energy Star logo, and are referred to in official documents as a vendor of green computers. (Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

  13. Energy star. (Latest citations from the Computer database). Published Search

    SciTech Connect (OSTI)

    Not Available

    1993-12-01T23:59:59.000Z

    The bibliography contains citations concerning a collaborative effort between the Environmental Protection Agency (EPA) and private industry to reduce electrical power consumed by personal computers and related peripherals. Manufacturers complying with EPA guidelines are officially recognized by award of a special Energy Star logo, and are referred to in official documents as a vendor of green computers. (Contains a minimum of 81 citations and includes a subject term index and title list.)

  14. Latest Certification Gives Volvo Top Three Plants at Platinum...

    Office of Environmental Management (EM)

    Group to be certified to the Superior Energy Performance (SEP(tm)) program and to ISO 50001. The facility improved its energy performance by 20.9% over three years to...

  15. DOE Releases Latest Report on Energy Savings Forecast of Solid...

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

    of Solid-State Lighting in General Illumination Applications compares the annual lighting energy consumption in the U.S. with and without further market penetration of LED...

  16. Latest HERMES Results on Transverse-Spin Effects in Hadron

    E-Print Network [OSTI]

    ;11 Aerogel n=1.03 C4F10 n=1.0014 hadron separation Hadron: ~ 98%, K ~ 88% , P ~ 85% Particle Identification

  17. Household Vehicles Energy Use: Latest Data & Trends

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40Coal Stocks at1,066,688ElectricityLess than 200DecadeCubic1. Introduction TheB :

  18. Household Vehicles Energy Use: Latest Data & Trends

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40Coal Stocks at1,066,688ElectricityLess than 200DecadeCubic1. Introduction TheB :D

  19. FEMP Presents Latest Training Course on Advanced Energy Savings Performance

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011AT&T,OfficeEnd of Year 2010SaltInstrumentation andFE DOCKETPlanning toPeer Review

  20. January 29 Webinar to Highlight the Latest Developments in Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(FactDepartment ofLetter Report: I11IG002RTC3 | of Energy January 2015Efficiency,