National Library of Energy BETA

Sample records for run speeds shows

  1. Neural Networks 1 Running Head: NETWORKS AND SPEED-ACCURACY TRADEOFF

    E-Print Network [OSTI]

    Neural Networks 1 Running Head: NETWORKS AND SPEED-ACCURACY TRADEOFF Neural Networks Associated@columbia.edu (Y. Stern) #12;Neural Networks 2 Abstract This functional neuroimaging (fMRI) study examined the neural networks (spatial patterns of covarying neural activity) associated with the speed

  2. Dynamic stability of running: The effects of speed and leg amputations on the maximal Lyapunov exponent

    SciTech Connect (OSTI)

    Look, Nicole [Department of Applied Mathematics, University of Colorado Boulder, Boulder, Colorado 80309 (United States)] [Department of Applied Mathematics, University of Colorado Boulder, Boulder, Colorado 80309 (United States); Arellano, Christopher J.; Grabowski, Alena M.; Kram, Rodger [Department of Integrative Physiology, University of Colorado Boulder, Boulder, Colorado 80309 (United States)] [Department of Integrative Physiology, University of Colorado Boulder, Boulder, Colorado 80309 (United States); McDermott, William J. [The Orthopedic Specialty Hospital, Murray, Utah 84107 (United States)] [The Orthopedic Specialty Hospital, Murray, Utah 84107 (United States); Bradley, Elizabeth [Department of Computer Science, University of Colorado Boulder, Boulder, Colorado 80309, USA and Santa Fe Institute, Santa Fe, New Mexico 87501 (United States)] [Department of Computer Science, University of Colorado Boulder, Boulder, Colorado 80309, USA and Santa Fe Institute, Santa Fe, New Mexico 87501 (United States)

    2013-12-15

    In this paper, we study dynamic stability during running, focusing on the effects of speed, and the use of a leg prosthesis. We compute and compare the maximal Lyapunov exponents of kinematic time-series data from subjects with and without unilateral transtibial amputations running at a wide range of speeds. We find that the dynamics of the affected leg with the running-specific prosthesis are less stable than the dynamics of the unaffected leg and also less stable than the biological legs of the non-amputee runners. Surprisingly, we find that the center-of-mass dynamics of runners with two intact biological legs are slightly less stable than those of runners with amputations. Our results suggest that while leg asymmetries may be associated with instability, runners may compensate for this effect by increased control of their center-of-mass dynamics.

  3. Running the rivers: Scientists say 2011 drought showed importance of environmental flows regulations 

    E-Print Network [OSTI]

    Lee, Leslie

    2012-01-01

    stream_source_info Running the rivers.pdf.txt stream_content_type text/plain stream_size 10306 Content-Encoding windows-1252 stream_name Running the rivers.pdf.txt Content-Type text/plain; charset=windows-1252 Summer... 2012 tx H2O 19 ] Story by Leslie Lee Running the rivers Carrying water so precious it has been called liquid gold, the ?? major rivers in Texas ?ow past pastures and cities, factories and suburbs. ?ese waters have endured the we?est and driest...

  4. Walking, running, and resting under time, distance, and average speed constraints: Optimality of walk-run-rest mixtures

    E-Print Network [OSTI]

    Srinivasan, Manoj

    in a more ecological (non-treadmill) setting. We asked subjects to travel a given distance overground to go from your house to the bus stop and have very little time to do so. You would likely run the whole

  5. Maximum Running Speed of Captive Bar-Headed Geese Is Unaffected by Severe Hypoxia

    E-Print Network [OSTI]

    Scott, Graham

    metabolism was not a major energy source during running in hypoxia. We combined these data with values taken and source are credited. Funding: The project was funded by the Biotechnology and Biological Sciences of the manuscript. Competing Interests: The authors have declared that no competing interests exist. * E-mail: l

  6. Run Rules

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) byMultidayAlumni > The Energy MaterialsRooftop SolarRoyRun Rules Run

  7. Running Jobs

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) byMultidayAlumni > The Energy MaterialsRooftop SolarRoyRunJobs Running

  8. Running jobs

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) byMultidayAlumni > The Energy MaterialsRooftopRunning Jobsjobs Running

  9. The unstable behavior of low and high-speed compressors

    SciTech Connect (OSTI)

    Day, I.J. . Whittle Lab.); Freeman, C. )

    1994-04-01

    By far the greater part of the understanding about stall and surge in axial compressors comes from work on low-speed laboratory machines. As a general rule, these machines do not model the compressibility effects present in high-speed compressors and therefore doubt has always existed about the application of low-speed results to high-speed machines. In recent years interest in active control has led to a number of studies of compressor stability in engine-type compressors. The instrumentation used in these experiments has been sufficiently detailed that, for the first time, adequate data are available to make direct comparisons between high-speed and low-speed compressors. This paper presents new data from an eight-stage fixed geometry engine compressor and compares then with low-speed laboratory data. The results show remarkable similarities in both the stalling and surging behavior of the two machines, particularly when the engine compressor is run at intermediate speeds. The engine results also show that, as in the laboratory tests, surge is precipitated by the onset of rotating stall. This is true even at very high speeds where it had previously been thought that surge might be the result of a blast wave moving through the compressor. This paper therefore contains new information about high-speed compressors and confirms that low-speed testing is an effective means of obtaining insight into the behavior of high-speed machines.

  10. Running Jobs

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) byMultidayAlumni > The Energy MaterialsRooftop SolarRoyRunJobs

  11. Running Jobs

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) byMultidayAlumni > The Energy MaterialsRooftop SolarRoyRunJobsJobs

  12. Running Jobs

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) byMultidayAlumni > The Energy MaterialsRooftop SolarRoyRunJobsJobs

  13. Running jobs

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) byMultidayAlumni > The Energy MaterialsRooftopRunning Jobs byjobs

  14. Running jobs

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) byMultidayAlumni > The Energy MaterialsRooftopRunning Jobs

  15. Seasonal Run Distribution Seasonal Run Distribution

    E-Print Network [OSTI]

    . The term "total run" defines the number of adult sockeye salmon that home to the Karluk River before197 Seasonal Run Distribution CHAPTER 6 Seasonal Run Distribution They arrived from the sea in one, what was the seasonal run distribution of its sockeye salmon? Was the original run distribution which

  16. Employee Show

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

    Where Science Inspires Art Fermilab Employee Art Show 2015 Exhibition Dates -September 18, 2015 November 30, 2015 Reception - September 23, 2015 5 7pm Eligibility: Any current...

  17. Electrons in ATLAS: from Run1 to Run2

    E-Print Network [OSTI]

    Ezhilov, Alexey; The ATLAS collaboration

    2015-01-01

    An excellent performance of the electron reconstruction, identification and calibration is of vital importance both for precision measurements as well as for searches for new physics. This poster will present the techniques used for the reconstruction, identification and calibration of electrons in ATLAS, and will show the performance obtained at the end of Run1. If available, it will also present first results from Run2.

  18. Effect of shrink fits on threshold speeds of rotordynamic instability 

    E-Print Network [OSTI]

    Mir, MD. Mofazzal Hossain

    2001-01-01

    An investigation of the effect of shrink fits on threshold speeds of rotordynamic instability has been performed. It is known that running rotors at supercritical speed can result in some rotordynamic problems (asynchronous ...

  19. High Speed Rail in America Thomas Ducharme, Matt Schena,

    E-Print Network [OSTI]

    Nagurney, Anna

    High Speed Rail in America Thomas Ducharme, Matt Schena, and Dan Bellis #12;The US Current Situation of High Speed Rail · The US only has one high speed rail o Acela Which runs from Boston to Washington D.C. · A renewed interest in High Speed Rail Due to increased congestion Desire for cheaper

  20. Deadline Scheduling and Power Management for Speed Bounded Processors

    E-Print Network [OSTI]

    Wong, Prudence W.H.

    deadline scheduling on a processor that can manage its energy usage by scaling the speed dynamically be scaled arbitrarily high (the infinite speed model), SOA can complete all jobs with reduced energy usage,15,23,24] enables a processor to vary the speed dynamically. Running a job slower reduces energy usage, but it takes

  1. Running on Carver

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) byMultidayAlumni > The Energy MaterialsRooftopRunning JobsjobsRunning

  2. Running on Carver

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) byMultidayAlumni > The Energy MaterialsRooftopRunningRunning on Carver

  3. Running with Java

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) byMultidayAlumni > The Energy MaterialsRooftopRunningRunning on

  4. Forecasting wind speed financial return

    E-Print Network [OSTI]

    D'Amico, Guglielmo; Prattico, Flavio

    2013-01-01

    The prediction of wind speed is very important when dealing with the production of energy through wind turbines. In this paper, we show a new nonparametric model, based on semi-Markov chains, to predict wind speed. Particularly we use an indexed semi-Markov model that has been shown to be able to reproduce accurately the statistical behavior of wind speed. The model is used to forecast, one step ahead, wind speed. In order to check the validity of the model we show, as indicator of goodness, the root mean square error and mean absolute error between real data and predicted ones. We also compare our forecasting results with those of a persistence model. At last, we show an application of the model to predict financial indicators like the Internal Rate of Return, Duration and Convexity.

  5. Forecasting Solar Wind Speeds

    E-Print Network [OSTI]

    Takeru K. Suzuki

    2006-02-03

    By explicitly taking into account effects of Alfven waves, I derive from a simple energetics argument a fundamental relation which predicts solar wind (SW) speeds in the vicinity of the earth from physical properties on the sun. Kojima et al. recently found from their observations that a ratio of surface magnetic field strength to an expansion factor of open magnetic flux tubes is a good indicator of the SW speed. I show by using the derived relation that this nice correlation is an evidence of the Alfven wave which accelerates SW in expanding flux tubes. The observations further require that fluctuation amplitudes of magnetic field lines at the surface should be almost universal in different coronal holes, which needs to be tested by future observations.

  6. Running.pptx

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust, High-Throughput Analysis of Protein StructuresMaintenance / AP SpearRunning Parallel Jobs

  7. Running Grid Jobs

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) byMultidayAlumni > The Energy MaterialsRooftop SolarRoyRun Rules

  8. Running Interactive Batch Jobs

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) byMultidayAlumni > The Energy MaterialsRooftop SolarRoyRun

  9. Running Jobs by Group

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) byMultidayAlumni > The Energy MaterialsRooftopRunning Jobs by Group

  10. Running Large Scale Jobs

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) byMultidayAlumni > The Energy MaterialsRooftopRunning Jobs by

  11. Running on Carver

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) byMultidayAlumni > The Energy MaterialsRooftopRunning Jobsjobs

  12. Running on Carver

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) byMultidayAlumni > The Energy MaterialsRooftopRunning

  13. Effect on Speed Distribution due to Intrusive and Non-Intrusive Portable Speed Measurement Devices

    E-Print Network [OSTI]

    Jasrotia, Romika

    2011-06-02

    with pneumatic tubes, Smartsensor, Autoscope with camera trailer and Lidar gun were compared. Results showed that drivers did not react to pneumatic tubes and continued driving at the same speed; there was no significant difference in speeds at different...

  14. Producing Turkeys for Show 

    E-Print Network [OSTI]

    Thornberry, Fredrick D.

    2005-12-14

    This publication gives the turkey exhibitor complete instructions for purchasing, feeding, housing and caring for show turkeys. There are also helpful tips for transporting and handling birds....

  15. Effectiveness of speed trailers on low-speed urban roadways 

    E-Print Network [OSTI]

    Perrillo, Kerry Victoria

    1997-01-01

    Efforts are being made to use speed management methods to match operating speeds to posted speeds and to reduce the variability in vehicle speeds. The effectiveness of many different methods of speed management has not been documented. This thesis...

  16. Post-Show Tips

    Broader source: Energy.gov [DOE]

    These guidelines are designed to help you with the post-show process. This page includes tips for tearing down your exhibit, shipping the exhibit, and collecting your bills.

  17. Hide / Show Animal Ethics

    E-Print Network [OSTI]

    New South Wales, University of

    . Administration B. Requested Modification C. Animal Use & Numbers D. Animal Housing E. Animal Location F. Administration B. Requested Modification C. Animal Use & Numbers D. Animal Housing E. Animal Location FHide / Show Animal Ethics Modification for Approved Application You are here: Animal Ethics

  18. Coordinating the 2009 RHIC Run

    ScienceCinema (OSTI)

    Brookhaven Lab - Mei Bai

    2010-01-08

    Physicists working at the Brookhaven National Lab's Relativistic Heavy Ion Collider (RHIC) are exploring the puzzle of proton spin as they begin taking data during the 2009 RHIC run. For the first time, RHIC is running at a record energy of 500 giga-elect

  19. Speeding chemical reactions by focusing

    E-Print Network [OSTI]

    A. M. Lacasta; L. Ramirez-Piscina; J. M. Sancho; K. Lindenberg

    2012-12-13

    We present numerical results for a chemical reaction of colloidal particles which are transported by a laminar fluid and are focused by periodic obstacles in such a way that the two components are well mixed and consequently the chemical reaction is speeded up. The roles of the various system parameters (diffusion coefficients, reaction rate, obstacles sizes) are studied. We show that focusing speeds up the reaction from the diffusion limited rate (t to the power -1/2) to very close to the perfect mixing rate, (t to the power -1).

  20. Metabolic cost of generating horizontal forces during human running

    E-Print Network [OSTI]

    Kram, Rodger

    . Using a wind tunnel to apply horizontal impeding forces, Pugh (19) showed that the metabolic cost forces. Davies (5) compared the metabolic cost of running with wind resistance vs. wind assistanceMetabolic cost of generating horizontal forces during human running YOUNG-HUI CHANG AND RODGER KRAM

  1. Turbocharged Speed Scaling: Analysis and Evaluation

    E-Print Network [OSTI]

    Williamson, Carey

    Turbocharged Speed Scaling: Analysis and Evaluation Maryam Elahi Carey Williamson Philipp Woelfel-based turbocharging, applied in conjunction with Fair Sojourn Protocol (FSP) scheduling and job-count-based speed. The simulation results show that Turbocharged FSP (T­FSP) outperforms PS in response time, and often in energy

  2. RHIC Au beam in Run 2014

    SciTech Connect (OSTI)

    Zhang, S. Y.

    2014-09-15

    Au beam at the RHIC ramp in run 2014 is reviewed together with the run 2011 and run 2012. Observed bunch length and longitudinal emittance are compared with the IBS simulations. The IBS growth rate of the longitudinal emittance in run 2014 is similar to run 2011, and both are larger than run 2012. This is explained by the large transverse emittance at high intensity observed in run 2012, but not in run 2014. The big improvement of the AGS ramping in run 2014 might be related to this change. The importance of the injector intensity improvement in run 2014 is emphasized, which gives rise to the initial luminosity improvement of 50% in run 2014, compared with the previous Au-Au run 2011. In addition, a modified IBS model, which is calibrated using the RHIC Au runs from 9.8 GeV/n to 100 GeV/n, is presented and used in the study.

  3. Log-normal distribution based EMOS models for probabilistic wind speed forecasting

    E-Print Network [OSTI]

    Baran, Sándor

    2014-01-01

    Ensembles of forecasts are obtained from multiple runs of numerical weather forecasting models with different initial conditions and typically employed to account for forecast uncertainties. However, biases and dispersion errors often occur in forecast ensembles, they are usually under-dispersive and uncalibrated and require statistical post-processing. We present an Ensemble Model Output Statistics (EMOS) method for calibration of wind speed forecasts based on the log-normal (LN) distribution, and we also show a regime-switching extension of the model which combines the previously studied truncated normal (TN) distribution with the LN. Both presented models are applied to wind speed forecasts of the eight-member University of Washington mesoscale ensemble, of the fifty-member ECMWF ensemble and of the eleven-member ALADIN-HUNEPS ensemble of the Hungarian Meteorological Service, and their predictive performances are compared to those of the TN and general extreme value (GEV) distribution based EMOS methods an...

  4. Evaluation of daytime vs. nighttime red-light-running using an advanced warning for end of green phase system 

    E-Print Network [OSTI]

    Obeng-Boampong, Kwaku Oduro

    2005-11-01

    The problem of dilemma zone protection and red-light-running is especially important in certain rural intersections due to the higher speeds at these intersections and their isolated nature. In addition, the presence of ...

  5. Run

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust, High-Throughput Analysis of Protein StructuresMaintenance / AP Spear Down University

  6. Run

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust, High-Throughput Analysis of Protein StructuresMaintenance / AP Spear Down UniversityPAMM

  7. California high speed rail proposal: “High speed rail and wildlife”

    E-Print Network [OSTI]

    Wilkerson, Cynthia

    2005-01-01

    Chapter Wildlife and High Speed Rail C ALIFORNIA H IGH SDan Leavitt, California High Speed Rail Authority) AbstractThe California High Speed Rail (HSR) Proposal is in the

  8. Running A Conference Justin Zobel

    E-Print Network [OSTI]

    Zobel, Justin

    Running A Conference Justin Zobel Alistair Moffat Last updated August 2003 1 Introduction Much of the research in computer science is published in conferences, often complex affairs in- cluding paper presentations, tutorials, workshops, invited speakers, and tours and entertainment. Even a small conference has

  9. High-Speed Photography

    SciTech Connect (OSTI)

    Paisley, D.L.; Schelev, M.Y.

    1998-08-01

    The applications of high-speed photography to a diverse set of subjects including inertial confinement fusion, laser surgical procedures, communications, automotive airbags, lightning etc. are briefly discussed. (AIP) {copyright} {ital 1998 Society of Photo-Optical Instrumentation Engineers.}

  10. ATLAS Run-2 status and performance

    E-Print Network [OSTI]

    Pastore, Francesca; The ATLAS collaboration

    2015-01-01

    During the 2013/2014 shutdown of the LHC the ATLAS detector has been improved. A new silicon pixel detector layer has been installed, and the muon detector coverage has been improved substantially. In addition nearly all other parts of the detector have also been revised to adapt them to the higher pileup conditions or make them more robust in general. This talk will describe these improvements, and how they affect the performance of physics objects. The initial results showing the detector performance as obtained from cosmic runs and/or initial beam data will also be shown.

  11. Ground vibration due to a high-speed moving harmonic rectangular load on a

    E-Print Network [OSTI]

    Avignon et des Pays de Vaucluse, Université de

    Ground vibration due to a high-speed moving harmonic rectangular load on a poroviscoelastic half'Avignon, Facult´e des Sciences, 33 rue Louis Pasteur, F-84000 Avignon, France RUNNING TITLE: Vibrations induced) #12;Abstract The transmission of vibrations in the ground, due to a high-speed moving vertical har

  12. Reducing EnergyPlus Run Time For Code Compliance Tools

    SciTech Connect (OSTI)

    Athalye, Rahul A.; Gowri, Krishnan; Schultz, Robert W.; Glazer, Jason

    2014-09-12

    Integration of the EnergyPlus ™ simulation engine into performance-based code compliance software raises a concern about simulation run time, which impacts timely feedback of compliance results to the user. EnergyPlus annual simulations for proposed and code baseline building models, and mechanical equipment sizing result in simulation run times beyond acceptable limits. This paper presents a study that compares the results of a shortened simulation time period using 4 weeks of hourly weather data (one per quarter), to an annual simulation using full 52 weeks of hourly weather data. Three representative building types based on DOE Prototype Building Models and three climate zones were used for determining the validity of using a shortened simulation run period. Further sensitivity analysis and run time comparisons were made to evaluate the robustness and run time savings of using this approach. The results of this analysis show that the shortened simulation run period provides compliance index calculations within 1% of those predicted using annual simulation results, and typically saves about 75% of simulation run time.

  13. Regularizing future cosmological singularities with varying speed of light

    E-Print Network [OSTI]

    F. Shojai; A. Shojai; M. Sanati

    2015-07-09

    Cosmological models may result in future singularities. We show that, in the framework of dynamical varying speed of light theories, it is possible to regularize those singularities.

  14. High speed door assembly

    DOE Patents [OSTI]

    Shapiro, C.

    1993-04-27

    A high speed door assembly is described, comprising an actuator cylinder and piston rods, a pressure supply cylinder and fittings, an electrically detonated explosive bolt, a honeycomb structured door, a honeycomb structured decelerator, and a structural steel frame encasing the assembly to close over a 3 foot diameter opening within 50 milliseconds of actuation, to contain hazardous materials and vapors within a test fixture.

  15. High speed door assembly

    DOE Patents [OSTI]

    Shapiro, Carolyn (Idaho Falls, ID)

    1993-01-01

    A high speed door assembly, comprising an actuator cylinder and piston rods, a pressure supply cylinder and fittings, an electrically detonated explosive bolt, a honeycomb structured door, a honeycomb structured decelerator, and a structural steel frame encasing the assembly to close over a 3 foot diameter opening within 50 milliseconds of actuation, to contain hazardous materials and vapors within a test fixture.

  16. PRELIMINARY Run Shutdown BL Commissioning

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass mapSpeeding access| Department ofStephen P riceawards |PPPL:

  17. OPTIMIZATION OF RUNNING STRATEGIES BASED ON ANAEROBIC ENERGY AND VARIATIONS OF VELOCITY

    E-Print Network [OSTI]

    OPTIMIZATION OF RUNNING STRATEGIES BASED ON ANAEROBIC ENERGY AND VARIATIONS OF VELOCITY AMANDINE extend this analysis, based on the equation of motion and aerobic energy, to include a balance of anaerobic energy (or accumulated oxygen deficit) and an energy recreation term when the speed decreases. We

  18. Effects of Virtualization on a Scientific Application Running a Hyperspectral Radiative Transfer Code on Virtual Machines

    E-Print Network [OSTI]

    Engelmann, Christian

    radiance distribution within/leaving a water body · Ex. parameters: water depth, wavelength, wind speed.0.4 includes other aspects · Run Parameters: opcontrol --start --separate=kernel \\ --event=GLOBAL_POWER profiles "--event=GLOBAL_POWER_EVENTS:100000:1:1:1 " event: GLOBAL_POWER_EVENTS reset counter: 100000reset

  19. Two-speed transaxle

    DOE Patents [OSTI]

    Kalns, Ilmars (Northville, MI)

    1981-01-01

    Disclosed is a drive assembly (10) for an electrically powered vehicle (12). The assembly includes a transaxle (16) having a two-speed transmission (40) and a drive axle differential (46) disposed in a unitary housing assembly (38), an oil-cooled prime mover or electric motor (14) for driving the transmission input shaft (42), an adapter assembly (24) for supporting the prime mover on the transaxle housing assembly, and a hydraulic system (172) providing pressurized oil flow for cooling and lubricating the electric motor and transaxle and for operating a clutch (84) and a brake (86) in the transmission to shift between the two-speed ratios of the transmission. The adapter assembly allows the prime mover to be supported in several positions on the transaxle housing. The brake is spring-applied and locks the transmission in its low-speed ratio should the hydraulic system fail. The hydraulic system pump is driven by an electric motor (212) independent of the prime mover and transaxle.

  20. Texas Show Steer Breed Classification 

    E-Print Network [OSTI]

    Cleere, Jason; Mazurkiewicz, Jim; Hammack, Stephen P.

    2008-02-28

    With as many as 16 breeds and breed-cross classes in Texas shows, classifying the breed of a show steer is not always easy. Show steers are sorted into breed classes based on visual characteristics, which is often a matter of judgment...

  1. Balancing of high speed, flexible rotating shafts across critical speeds 

    E-Print Network [OSTI]

    White, Gary Paul

    1977-01-01

    BALANCING OF HIGH SPEED, FLEXIBLE ROTATING SHAFTS ACROSS CRITICAL SPEEDS A Thesis by Gary Paul White Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE... August 1977 Major Subject: Mechanical Engineering Gary Paul White 1977 BALANCING OF HIGH SPEED, FLEXIBLE ROTATING SHAFTS ACROSS CRITICAL SPEEDS A Thesis by GARY PAUL WHITE Approved as to style and content by: Head of Department Member August...

  2. Single superpartner production at Tevatron Run II

    E-Print Network [OSTI]

    F. Deliot; G. Moreau; C. Royon

    2000-07-25

    We study the single productions of supersymmetric particles at Tevatron Run II which occur in the $2 \\to 2-body$ processes involving R-parity violating couplings of type $\\l'_{ijk} L_i Q_j D_k^c$. We focus on the single gaugino productions which receive contributions from the resonant slepton productions. We first calculate the amplitudes of the single gaugino productions. Then we perform analyses of the single gaugino productions based on the three charged leptons and like sign dilepton signatures. These analyses allow to probe supersymmetric particles masses beyond the present experimental limits, and many of the $\\l'_{ijk}$ coupling constants down to values smaller than the low-energy bounds. Finally, we show that the studies of the single gaugino productions offer the opportunity to reconstruct the $\\tilde \\chi^0_1$, $\\tilde \\chi^{\\pm}_1$, $\\tilde \

  3. High speed flywheel

    DOE Patents [OSTI]

    McGrath, Stephen V. (Knoxville, TN)

    1991-01-01

    A flywheel for operation at high speeds utilizes two or more ringlike coments arranged in a spaced concentric relationship for rotation about an axis and an expansion device interposed between the components for accommodating radial growth of the components resulting from flywheel operation. The expansion device engages both of the ringlike components, and the structure of the expansion device ensures that it maintains its engagement with the components. In addition to its expansion-accommodating capacity, the expansion device also maintains flywheel stiffness during flywheel operation.

  4. High-speed

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverse (JournalvivoHigh energy neutronHigh-PressureLaboratoryspeed three-wave

  5. Figure 3: Surfaces separating at high speed, ? c , showing FECO fringes (top),

    E-Print Network [OSTI]

    Joseph, Daniel D.

    small gas nuclei (Plesset & Prosperetti [1977]). Here we are looking at the situation in which a gas a saturation value; the dissolved gas has condensed into a liquid and the condensed liquid is miscible. Gases dissolved in liquids experience intermolecular forces between liquid and gas molecules. We could think

  6. High speed transient sampler

    DOE Patents [OSTI]

    McEwan, T.E.

    1995-11-28

    A high speed sampler comprises a meandered sample transmission line for transmitting an input signal, a straight strobe transmission line for transmitting a strobe signal, and a plurality of sampling gates along the transmission lines. The sampling gates comprise a four terminal diode bridge having a first strobe resistor connected from a first terminal of the bridge to the positive strobe line, a second strobe resistor coupled from the third terminal of the bridge to the negative strobe line, a tap connected to the second terminal of the bridge and to the sample transmission line, and a sample holding capacitor connected to the fourth terminal of the bridge. The resistance of the first and second strobe resistors is much higher than the signal transmission line impedance in the preferred system. This results in a sampling gate which applies a very small load on the sample transmission line and on the strobe generator. The sample holding capacitor is implemented using a smaller capacitor and a larger capacitor isolated from the smaller capacitor by resistance. The high speed sampler of the present invention is also characterized by other optimizations, including transmission line tap compensation, stepped impedance strobe line, a multi-layer physical layout, and unique strobe generator design. A plurality of banks of such samplers are controlled for concatenated or interleaved sample intervals to achieve long sample lengths or short sample spacing. 17 figs.

  7. High speed transient sampler

    DOE Patents [OSTI]

    McEwan, Thomas E. (Livermore, CA)

    1995-01-01

    A high speed sampler comprises a meandered sample transmission line for transmitting an input signal, a straight strobe transmission line for transmitting a strobe signal, and a plurality of sampling gates along the transmission lines. The sampling gates comprise a four terminal diode bridge having a first strobe resistor connected from a first terminal of the bridge to the positive strobe line, a second strobe resistor coupled from the third terminal of the bridge to the negative strobe line, a tap connected to the second terminal of the bridge and to the sample transmission line, and a sample holding capacitor connected to the fourth terminal of the bridge. The resistance of the first and second strobe resistors is much higher than the signal transmission line impedance in the preferred system. This results in a sampling gate which applies a very small load on the sample transmission line and on the strobe generator. The sample holding capacitor is implemented using a smaller capacitor and a larger capacitor isolated from the smaller capacitor by resistance. The high speed sampler of the present invention is also characterized by other optimizations, including transmission line tap compensation, stepped impedance strobe line, a multi-layer physical layout, and unique strobe generator design. A plurality of banks of such samplers are controlled for concatenated or interleaved sample intervals to achieve long sample lengths or short sample spacing.

  8. Diarrheal Disease in Show Swine 

    E-Print Network [OSTI]

    Lawhorn, D. Bruce

    2007-02-27

    from the feces of recovered car- rier pigs or from contaminated premises, trailers or scales. Pigs affected with this disease usually become very sick. This organism infects the cells lining the cecum and spiral colon (the same area as whipworms... disease in show pigs. Infection occurs after pigs ingest microscopic whipworm eggs while rooting or eating in a contaminat- ed environment. Whipworm eggs remain viable for as long as 6 years so contaminated premises are an impor- tant source of infection...

  9. 2.1E Sample Run Book

    E-Print Network [OSTI]

    Winkelmann, F.C.

    2010-01-01

    SS-J @e RUN 6 PACKAGED HEAT PUMPS PER_P. 'rER DOE-2.tE-O01RUN It RESY$ with on/off heat pump WEATH[RPILl- TRY CHICAGOR_;NI: RBSYSwith on/off heat pump MEA? HERFILE- TRY CHICA(]O

  10. Drill Press Speed Chart Recommended operating speeds (RPM)

    E-Print Network [OSTI]

    Quigg, Chris

    Drill Press Speed Chart Recommended operating speeds (RPM) Accessory Softwood (Pine) Hardwood (Hard Maple) Acrylic Brass Aluminum Steel Shop Notes Twist drill bits 1/16" - 3/16" 1/4" - 3/8" 7/16"- 5/8" 11 1000 600 350 Lubricate drill with oil when cutting steel 1/8" or thicker. Use center punch on all holes

  11. Abstract--This paper develops a static observer for estimating wind speed in order to control wind speed and angle

    E-Print Network [OSTI]

    Hollerbach, John M.

    Abstract--This paper develops a static observer for estimating wind speed in order to control wind speed and angle control at a user position in a submersive virtual environment. Addition of wind display Active Wind Tunnel (TPAWT). Experiments on a scaled model of the TPAWT show that headwind flow stream

  12. EnergyPlus Run Time Analysis

    E-Print Network [OSTI]

    Hong, Tianzhen

    2009-01-01

    N ATIONAL L ABORATORY EnergyPlus Run Time Analysis Tianzhenl y s i s Development of EnergyPlus for Use in Title 24 andCommission Staff Use of EnergyPlus Deliverable for Task

  13. Run manager module for CORAL laboratory management

    E-Print Network [OSTI]

    Klann, Jeffrey G

    2004-01-01

    This thesis describes a new module, the Run Manager (RM), for Stanford Nanofabrication Facility's Common Object Representation for Advanced Laboratories (CORAL). CORAL is the lab manager with which MIT's Microsystems ...

  14. RHIC Polarized proton performance in run-8

    SciTech Connect (OSTI)

    Montag,C.; Bai, M.; MacKay, W.W.; Roser, T.; Abreu, N.; Ahrens, L.; Barton, D.; Beebe-Wang, J.; Blaskiewicz, M.; Brennan, J.M.; Brown, K.A.; Bruno, D.; Bunce, G.; Calaga, R.; Cameron, P.; Connolly, R.; D'Ottavio, T.; Drees, A.; Fedotov, A.V.; Fischer, W.; Ganetis, G.; Gardner, C.; Glenn, J.; Hayes, T.; Huang, H.; Ingrassia, P.; Kayran, D.A.; Kewisch, J.; Lee, R.C.; Lin, F.; Litvinenko, V.N.; Luccio, A.U.; Luo, Y.; Makdisi, Y.; Malitsky, N.; Marr, G.; Marusic, A.; Michnoff, R.; Morris, J.; Oerter, B.; Pilat, F.; Pile, P.; Robert-Demolaize, G.; Russo, T.; Satogata, T.; Schultheiss, C.; Sivertz, M.; Smith, K.; Tepikian, S.; D. Trbojevic, D.; Tsoupas, N.; Tuozzolo, J.; Zaltsman, A.; Zelenski, A.; Zeno, K.; Zhang, S.Y.

    2008-10-06

    During Run-8, the Relativistic Heavy Ion Collider (RHIC) provided collisions of spin-polarized proton beams at two interaction regions. Physics data were taken with vertical orientation of the beam polarization, which in the 'Yellow' RHIC ring was significantly lower than in previous years. We present recent developments and improvements as well as the luminosity and polarization performance achieved during Run-8, and we discuss possible causes of the not as high as previously achieved polarization performance of the 'Yellow' ring.

  15. Observational constraint on the varying speed of light theory

    E-Print Network [OSTI]

    Jing-Zhao Qi; Ming-Jian Zhang; Wen-Biao Liu

    2014-10-07

    The varying speed of light (VSL) theory is controversial. It succeeds in explaining some cosmological problems, but on the other hand it is excluded by mainstream physics because it will shake the foundation of physics. In the present paper, we devote ourselves to test whether the speed of light is varying from the observational data of the type Ia Supernova, Baryon Acoustic Oscillation, Observational $H(z)$ data and Cosmic Microwave Background (CMB). We select the common form $c(t)=c_0a^n(t)$ with the contribution of dark energy and matter, where $c_0$ is the current value of speed of light, $n$ is a constant, and consequently construct a varying speed of light dark energy model (VSLDE). The combined observational data show a much trivial constraint $n=-0.0033 \\pm 0.0045$ at 68.3\\% confidence level, which indicates that the speed of light may be a constant with high significance. By reconstructing the time-variable $c(t)$, we find that the speed of light almost has no variation for redshift $z light is only in order of $10^{-2}$. We also introduce the geometrical diagnostic $Om (z)$ to show the difference between the VSLDE and $\\Lambda$CDM model. The result shows that the current data are difficult to differentiate them. All the results show that the observational data favor the constant speed of light.

  16. Liquid phase fluid dynamic (methanol) run in the LaPorte alternative fuels development unit

    SciTech Connect (OSTI)

    Bharat L. Bhatt

    1997-05-01

    A fluid dynamic study was successfully completed in a bubble column at DOE's Alternative Fuels Development Unit (AFDU) in LaPorte, Texas. Significant fluid dynamic information was gathered at pilot scale during three weeks of Liquid Phase Methanol (LPMEOJP) operations in June 1995. In addition to the usual nuclear density and temperature measurements, unique differential pressure data were collected using Sandia's high-speed data acquisition system to gain insight on flow regime characteristics and bubble size distribution. Statistical analysis of the fluctuations in the pressure data suggests that the column was being operated in the churn turbulent regime at most of the velocities considered. Dynamic gas disengagement experiments showed a different behavior than seen in low-pressure, cold-flow work. Operation with a superficial gas velocity of 1.2 ft/sec was achieved during this run, with stable fluid dynamics and catalyst performance. Improvements included for catalyst activation in the design of the Clean Coal III LPMEOH{trademark} plant at Kingsport, Tennessee, were also confirmed. In addition, an alternate catalyst was demonstrated for LPMEOH{trademark}.

  17. Low pressure high speed Stirling air engine. Final technical report

    SciTech Connect (OSTI)

    Ross, M.A.

    1980-06-16

    The purpose of this project was to design, construct and test a simple, appropriate technology low pressure, high speed, wood-fired Stirling air engine of 100 W output. The final design was a concentric piston/displacer engine of 454 in. bore and 1 in. stroke with a rhombic drive mechanism. The project engine was ultimately completed and tested, using a propane burner for all tests as a matter of convenience. The 100 W aim was exceeded, at atmospheric pressure, over a wide range of engine speed with the maximum power being 112 W at 1150 rpm. A pressure can was constructed to permit pressurization; however the grant funds were running out, and the only pressurized power test attempted was unsuccessful due to seal difficulties. This was a disappointment because numerous tests on the 4 cubic inch engine suggested power would be more than doubled with pressurization at 25 psig. A manifold was designed and constructed to permit operation of the engine over a standard No. 40 pot bellied stove. The engine was run successfully, but at reduced speed and power, over this stove. The project engine started out being rather noisy in operation, but modifications ultimately resulted in a very quiet engine. Various other difficulties and their solutions also are discussed. (LCL)

  18. SALE: a simplified ALE computer program for fluid flow at all speeds

    SciTech Connect (OSTI)

    Amsden, A.A.; Ruppel, H.M.; Hirt, C.W.

    1980-06-01

    A simplified numerical fluid-dynamics computing technique is presented for calculating two-dimensional fluid flows at all speeds. It combines an implicit treatment of the pressure equation similar to that in the Implicit Continuous-fluid Eulerian (ICE) technique with the grid rezoning philosophy of the Arbitrary Lagrangian-Eulerian (ALE) method. As a result, it can handle flow speeds from supersonic to the incompressible limit in a grid that may be moved with the fluid in typical Lagrangian fashion, or held fixed in an Eulerian manner, or moved in some arbitrary way to give a continuous rezoning capability. The report describes the combined (ICEd-ALE) technique in the framework of the SALE (Simplified ALE) computer program, for which a general flow diagram and complete FORTRAN listing are included. A set of sample problems show how to use or modify the basic code for a variety of applications. Numerical listings are provided for a sample problem run with the SALE program.

  19. Numerical wind speed simulation model

    SciTech Connect (OSTI)

    Ramsdell, J.V.; Athey, G.F.; Ballinger, M.Y.

    1981-09-01

    A relatively simple stochastic model for simulating wind speed time series that can be used as an alternative to time series from representative locations is described in this report. The model incorporates systematic seasonal variation of the mean wind, its standard deviation, and the correlation speeds. It also incorporates systematic diurnal variation of the mean speed and standard deviation. To demonstrate the model capabilities, simulations were made using model parameters derived from data collected at the Hanford Meteorology Station, and results of analysis of simulated and actual data were compared.

  20. Maglev vehicles and superconductor technology: Integration of high-speed ground transportation into the air travel system

    SciTech Connect (OSTI)

    Johnson, L.R.; Rote, D.M.; Hull, J.R.; Coffey, H.T.; Daley, J.G.; Giese, R.F.

    1989-04-01

    This study was undertaken to (1) evaluate the potential contribution of high-temperature superconductors (HTSCs) to the technical and economic feasibility of magnetically levitated (maglev) vehicles, (2) determine the status of maglev transportation research in the United States and abroad, (3) identify the likelihood of a significant transportation market for high-speed maglev vehicles, and (4) provide a preliminary assessment of the potential energy and economic benefits of maglev systems. HTSCs should be considered as an enhancing, rather than an enabling, development for maglev transportation because they should improve reliability and reduce energy and maintenance costs. Superconducting maglev transportation technologies were developed in the United States in the late 1960s and early 1970s. Federal support was withdrawn in 1975, but major maglev transportation programs were continued in Japan and West Germany, where full-scale prototypes now carry passengers at speeds of 250 mi/h in demonstration runs. Maglev systems are generally viewed as very-high-speed train systems, but this study shows that the potential market for maglev technology as a train system, e.g., from one downtown to another, is limited. Rather, aircraft and maglev vehicles should be seen as complementing rather than competing transportation systems. If maglev systems were integrated into major hub airport operations, they could become economical in many relatively high-density US corridors. Air traffic congestion and associated noise and pollutant emissions around airports would also be reduced. 68 refs., 26 figs., 16 tabs.

  1. Renewable variable speed hybrid system 

    E-Print Network [OSTI]

    Stott, Paul Anthony

    2010-01-01

    At present many remote and Island communities rely solely on diesel powered generators to provide electricity. Diesel fuel is both expensive and polluting and the constant speed operation of the diesel engine is inefficient. ...

  2. Adjustable Speed Drive Industrial Applications 

    E-Print Network [OSTI]

    Poole, J. N.

    1989-01-01

    Electric motors are significant users of electricity in the United States. Approximately 66 percent of the total electricity in the U.S. is used by electric motors. Electronic adjustable speed drives (ASDs) can save energy, lower maintenance cost...

  3. The Effect of Wind Speed and Electric Rates On Wind Turbine Economics

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    The Effect of Wind Speed and Electric Rates On Wind Turbine Economics Economics of wind power by the theoretical maximum energy production if the generator were running at its rated power all the year turbine Rated Power per turbine: assumption 1,500 kW C Availability assumption 97% D 8,760 hrs/year E

  4. Chaotic inflation with curvaton induced running

    E-Print Network [OSTI]

    Martin S. Sloth

    2014-09-08

    While dust contamination now appears as a likely explanation of the apparent tension between the recent BICEP2 data and the Planck data, we will here explore the consequences of a large running in the spectral index as suggested by the BICEP2 collaboration as an alternative explanation of the apparent tension, but which would be in conflict with prediction of the simplest model of chaotic inflation. The large field chaotic model is sensitive to UV physics, and the nontrivial running of the spectral index suggested by the BICEP2 collaboration could therefore, if true, be telling us some additional new information about the UV completion of inflation. However, before we would be able to draw such strong conclusions with confidence, we would first have to also carefully exclude all the alternatives. Assuming monomial chaotic inflation is the right theory of inflation, we therefore explore the possibility that the running could be due to some other less UV sensitive degree of freedom. As an example, we ask if it is possible that the curvature perturbation spectrum has a contribution from a curvaton, which makes up for the large running in the spectrum. We find that this effect could mask the information we can extract about the UV physics. We also study different different models, which might lead to a large negative intrinsic running of the curvaton.

  5. High-Speed Rail Comes to London

    E-Print Network [OSTI]

    Hall, Sir Peter

    2001-01-01

    of a debate about high-speed rail transportation, spurred byfrom long-haul flight to high-speed rail feeder. Lufthansasecurity problems that high-speed rail travel might help

  6. Effective run-and-tumble dynamics of bacteria baths

    E-Print Network [OSTI]

    M. Paoluzzi; R. Di Leonardo; L. Angelani

    2013-07-30

    {\\it E. coli} bacteria swim in straight runs interrupted by sudden reorientation events called tumbles. The resulting random walks give rise to density fluctuations that can be derived analytically in the limit of non interacting particles or equivalently of very low concentrations. However, in situations of practical interest, the concentration of bacteria is always large enough to make interactions an important factor. Using molecular dynamics simulations, we study the dynamic structure factor of a model bacterial bath for increasing values of densities. We show that it is possible to reproduce the dynamics of density fluctuations in the system using a free run-and-tumble model with effective fitting parameters. We discuss the dependence of these parameters, e.g., the tumbling rate, tumbling time and self-propulsion velocity, on the density of the bath.

  7. Jefferson Lab Data Acquisition Run Control System

    SciTech Connect (OSTI)

    Vardan Gyurjyan; Carl Timmer; David Abbott; William Heyes; Edward Jastrzembski; David Lawrence; Elliott Wolin

    2004-10-01

    A general overview of the Jefferson Lab data acquisition run control system is presented. This run control system is designed to operate the configuration, control, and monitoring of all Jefferson Lab experiments. It controls data-taking activities by coordinating the operation of DAQ sub-systems, online software components and third-party software such as external slow control systems. The main, unique feature which sets this system apart from conventional systems is its incorporation of intelligent agent concepts. Intelligent agents are autonomous programs which interact with each other through certain protocols on a peer-to-peer level. In this case, the protocols and standards used come from the domain-independent Foundation for Intelligent Physical Agents (FIPA), and the implementation used is the Java Agent Development Framework (JADE). A lightweight, XML/RDF-based language was developed to standardize the description of the run control system for configuration purposes.

  8. AMBER Task Force February 2008 run report

    E-Print Network [OSTI]

    F. Malbet; G. Duvert; A. Chelli; P. Kern

    2008-08-08

    AMBER was installed in March 2004 in the VLTI focal lab of the VLT observatory in Cerro Paranal run by ESO. Since then, there have been 4 commissioning runs and additional VLTI infrastructure installed (IRIS, FINITO and ATs,...), but AMBER is not yet fulfilling all its initial specifications and some important primary science objectives cannot be achieved. At the consortium level, an action plan has been decided in Oct 2007 that created an AMBER Task Force (ATF) to understand and possibly cure the eventual technical issues. The objectives of the February 2008 run was mainly to bring AMBER into contractual specifications the accuracy of the absolute visibility, of the differential and of the closure phase through a fundamental analysis of the instrument status and limitations. This report is the official report of the AMBER Task Force.

  9. Fermilab | Newsroom | Press Releases | May 23, 2013: Run like...

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

    Images available here: http:www.fnal.govpubpresspasspressreleases2013Run-Like-Proton-20130523-images.html Run like a proton at Fermilabs new playground It's one thing...

  10. Scalable Run Time Data Collection Analysis and Visualization...

    Office of Scientific and Technical Information (OSTI)

    Scalable Run Time Data Collection Analysis and Visualization (Presentation). Citation Details In-Document Search Title: Scalable Run Time Data Collection Analysis and Visualization...

  11. Department of Energy to Provide Supercomputing Time to Run NOAA...

    Energy Savers [EERE]

    Department of Energy to Provide Supercomputing Time to Run NOAA's Climate Change Models Department of Energy to Provide Supercomputing Time to Run NOAA's Climate Change Models...

  12. Rotary running tool for rotary lock mandrel

    SciTech Connect (OSTI)

    Dollison, W.W.

    1992-07-28

    This patent describes a running tool for a rotary lock mandrel. It comprises: a housing having a connection on the end thereof; an anvil slidably mounted in the housing and extending from the other end of the housing; means in the housing for rotating the anvil relative to the housing including: a helical slot in the housing, a lug slidably mounted in the helical slot and attached to the anvil and a spring biasing the anvil to extend from the housing; and means on the extending anvil for rotatively and releasably connecting the running tool to a rotary lock mandrel.

  13. Getting in Sync with Dimeric Eg5 INITIATION AND REGULATION OF THE PROCESSIVE RUN*S

    E-Print Network [OSTI]

    Grabe, Michael

    Getting in Sync with Dimeric Eg5 INITIATION AND REGULATION OF THE PROCESSIVE RUN*S Received the Department of Biological Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania 15260 Eg5/KSP assembly and dynamics. Recent work using a dimeric form of Eg5 has found it to be a processive motor

  14. Speeding Up Zeolite Evaluation for Carbon Capture

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

    Speeding Up Zeolite Evaluation for Carbon Capture Speeding Up Zeolite Evaluation for Carbon Capture Zeolite.png Schematic of an important class of porous materials known as...

  15. Generalized Geometric Quantum Speed Limits

    E-Print Network [OSTI]

    Diego Paiva Pires; Marco Cianciaruso; Lucas C. Céleri; Gerardo Adesso; Diogo O. Soares-Pinto

    2015-09-30

    The attempt to gain a theoretical understanding of the concept of time in quantum mechanics has triggered significant progress towards the search for faster and more efficient quantum technologies. One of such advances consists in the interpretation of the time-energy uncertainty relations as lower bounds for the minimal evolution time between two distinguishable states of a quantum system, also known as quantum speed limits. We investigate how the non uniqueness of a bona fide measure of distinguishability defined on the quantum state space affects the quantum speed limits and can be exploited in order to derive improved bounds. Specifically, we establish an infinite family of quantum speed limits valid for unitary and nonunitary evolutions, based on an elegant information geometric formalism. Our work unifies and generalizes existing results on quantum speed limits, and provides instances of novel bounds which are tighter than any established one based on the conventional quantum Fisher information. We illustrate our findings with relevant examples, clarifying the role of classical populations versus quantum coherences in the determination and saturation of the speed limits. Our results can find applications in the optimization and control of quantum technologies such as quantum computation and metrology, and might provide new insights in fundamental investigations of quantum thermodynamics.

  16. CMS computing operations during run 1

    E-Print Network [OSTI]

    Gomez-Ceballos, Guillelmo

    During the first run, CMS collected and processed more than 10B data events and simulated more than 15B events. Up to 100k processor cores were used simultaneously and 100PB of storage was managed. Each month petabytes of ...

  17. Area Activation 1 Running Head: AREA ACTIVATION

    E-Print Network [OSTI]

    Pomplun, Marc

    Area Activation 1 Running Head: AREA ACTIVATION Advancing Area Activation towards a General Model at Boston 100 Morrissey Boulevard Boston, MA 02125-3393 USA Phone: 617-287-6485 Fax: 617-287-6433 e. Without great effort, human observers clearly outperform every current artificial vision system in tasks

  18. Hazard % free free espresso Over Run

    E-Print Network [OSTI]

    Dill, David L.

    Total Products Hazard­ Hazard­ % free free espresso­ Over­ Run­ name in/out Method exact head time 5 0 1 dme­fast­opt 5/3 8 8 0 1 Table 2. Comparison of Hazard­Free Logic Minimization with espresso­level hazard­free minimization prob­ lem for several reasons: the general problem has not pre­ viously been

  19. Run Run Shaw Library, City University of Hong Kong Library Homepage: http://www.cityu.edu.hk/lib/ This guide serves as an introduction to selected resources and services of the Run Run Shaw Library. To find out more, visit

    E-Print Network [OSTI]

    Po, Lai-Man

    and public holidays will be announced in advance via the Library Web site and will be posted at the Library1 Run Run Shaw Library, City University of Hong Kong Library Homepage: http://www.cityu.edu.hk/lib/ This guide serves as an introduction to selected resources and services of the Run Run Shaw Library. To find

  20. Run Run Shaw Library, City University of Hong Kong Library Homepage: http://www.cityu.edu.hk/lib/ This guide serves as an introduction to selected resources and services of the Run Run Shaw Library. To find out more, visit

    E-Print Network [OSTI]

    Po, Lai-Man

    , semester breaks and public holidays will be announced in advance via the Library Web siteRun Run Shaw Library, City University of Hong Kong Library Homepage: http://www.cityu.edu.hk/lib/ This guide serves as an introduction to selected resources and services of the Run Run Shaw Library. To find

  1. Run Run Shaw Library, City University of Hong Kong Library Homepage: http://www.cityu.edu.hk/lib/ This guide serves as an introduction to selected resources and services of the Run Run Shaw Library. To find out more, visit

    E-Print Network [OSTI]

    Po, Lai-Man

    and public holidays will be announced in advance via the Library Web site and will be posted at the LibraryRun Run Shaw Library, City University of Hong Kong Library Homepage: http://www.cityu.edu.hk/lib/ This guide serves as an introduction to selected resources and services of the Run Run Shaw Library. To find

  2. Run Run Shaw Library, City University of Hong Kong Library Homepage: http://www.cityu.edu.hk/lib/ This guide serves as an introduction to selected resources and services of the Run Run Shaw Library. To find out more, visit

    E-Print Network [OSTI]

    Po, Lai-Man

    examination periods, semester breaks and public holidays will be announced in advance via the Library Web siteRun Run Shaw Library, City University of Hong Kong Library Homepage: http://www.cityu.edu.hk/lib/ This guide serves as an introduction to selected resources and services of the Run Run Shaw Library. To find

  3. Damage measurements on the NWTC direct-drive, variable-speed test bed

    SciTech Connect (OSTI)

    Sutherland, H.J.; Carlin, P.W.

    1998-12-31

    The NWTC (National Wind Technology Center) Variable-Speed Test Bed turbine is a three-bladed, 10-meter, downwind machine that can be run in either fixed-speed or variable-speed mode. In the variable-speed mode, the generator torque is regulated, using a discrete-stepped load bank to maximize the turbine`s power coefficient. At rated power, a second control loop that uses blade pitch to maintain rotor speed essentially as before, i.e., using the load bank to maintain either generator power or (optionally) generator torque. In this paper, the authors will use this turbine to study the effect of variable-speed operation on blade damage. Using time-series data obtained from blade flap and edge strain gauges, the load spectrum for the turbine is developed using rainflow counting techniques. Miner`s rule is then used to determine the damage rates for variable-speed and fixed-speed operation. The results illustrate that the controller algorithm used with this turbine introduces relatively large load cycles into the blade that significantly reduce its service lifetime, while power production is only marginally increased.

  4. Multicriteria high-speed rail route selection: application to Malaysia's high-speed rail corridor prioritization

    E-Print Network [OSTI]

    Barkan, Christopher P.L.

    Multicriteria high-speed rail route selection: application to Malaysia's high-speed rail corridor on multicriteria decision analysis in transportation and provides a case study of high-speed rail (HSR) corridor. Keywords: high-speed rail; route selection; multicriteria analysis; Malaysia Introduction High-speed rail

  5. Music and Speed of Processing 1 BACKGROUND MUSIC AND SPEED OF PROCESSING

    E-Print Network [OSTI]

    Mutlu, Onur

    Music and Speed of Processing 1 BACKGROUND MUSIC AND SPEED OF PROCESSING Effects of the Type of Loud Background Music on Speed of Processing Onur Mutlu University of Michigan #12;Music and Speed of background music and task difficulty on the speed of processing in search tasks. Subjects completed four

  6. Queuing and Running on BG/Q Systems FAQ | Argonne Leadership Computing

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass mapSpeedingProgramExemptionsProteinTotalSciTechAprilFacility Queuing and Running

  7. Run II Jet Physics Proceedings of the Run II QCD and Weak Boson Physics Workshop

    E-Print Network [OSTI]

    Blazey, G C; Ellis, S D; Elvira, V D; Frame, K C; Grinstein, S; Hirosky, R; Piegaia, R; Schellman, H; Snihur, R; Sorin, V; Zeppenfeld, Dieter; Blazey, Gerald C.; Dittmann, Jay R.; Ellis, Stephen D.; Hirosky, Robert; Zeppenfeld, Dieter

    2000-01-01

    The Run II jet physics group includes the Jet Algorithms, Jet Shape/Energy Flow, and Jet Measurements/Correlations subgroups. The main goal of the jet algorithm subgroup was to explore and define standard Run II jet finding procedures for CDF and DO. The focus of the jet shape/energy flow group was the study of jets as objects and the energy flows around these objects. The jet measurements/correlations subgroup discussed measurements at different beam energies; strong coupling constant measurements; and LO, NLO, NNLO, and threshold jet calculations. As a practical matter the algorithm and shape/energy flow groups merged to concentrate on the development of Run II jet algorithms that are both free of theoretical and experimental difficulties and able to reproduce Run I measurements. Starting from a review of the experience gained during Run I, the group considered a variety of cone algorithms and KT algorithms. The current understanding of both types of algorithms, including calibration issues, are discussed i...

  8. Running River PLC | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc Jump to:Newberg,EnergyEast JumpInformation SanjunyanRouttRumbleRunning

  9. SunRun Inc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc JumpHeter BatterySolarfinMarketMember Corp Jump to:CDC1 LLCSunPowerSunRun Inc

  10. SSRL_2003_Run_Sched.xls

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust, High-Throughput Analysis of Protein1-0845*RV6 Commercial8thUSERS'6/02 Run Shutdown

  11. Running Jobs under SLURM on Babbage

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) byMultidayAlumni > The Energy MaterialsRooftopRunning Jobs by Group

  12. Sandia Energy - Developing a Fast-Running Turbine Wake Model

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

    Developing a Fast-Running Turbine Wake Model Home Renewable Energy Energy Water Power News News & Events Developing a Fast-Running Turbine Wake Model Previous Next Developing a...

  13. Alcator C-MOD Runs for CY 2015

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

    Runs for CY 2015 Administer Run Database Select Calendar Year 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993...

  14. Mesoscale & Microscale Meteorological Division / NCAR WRF Nature Run

    E-Print Network [OSTI]

    Michalakes, John

    Mesoscale & Microscale Meteorological Division / NCAR WRF Nature Run John Michalakes Josh Hacker overview and petascale issues Nature run methodology Results and conclusion #12;Mesoscale & Microscale's atmosphere #12;Mesoscale & Microscale Meteorological Division / NCAR Description of Science · Kinetic energy

  15. Long run changes in driver behavior due to variable tolls 

    E-Print Network [OSTI]

    Konduru, Karun K.

    2004-09-30

    As many variable pricing projects are still in the implementation stage, long-run driver responses to the variable tolls are largely unknown. This research examined the long-run changes in driver behavior in an existing ...

  16. Comparison of the Accuracy and Speed of Transient Mobile A/C System Simulation Models: Preprint

    SciTech Connect (OSTI)

    Kiss, T.; Lustbader, J.

    2014-03-01

    The operation of air conditioning (A/C) systems is a significant contributor to the total amount of fuel used by light- and heavy-duty vehicles. Therefore, continued improvement of the efficiency of these mobile A/C systems is important. Numerical simulation has been used to reduce the system development time and to improve the electronic controls, but numerical models that include highly detailed physics run slower than desired for carrying out vehicle-focused drive cycle-based system optimization. Therefore, faster models are needed even if some accuracy is sacrificed. In this study, a validated model with highly detailed physics, the 'Fully-Detailed' model, and two models with different levels of simplification, the 'Quasi-Transient' and the 'Mapped- Component' models, are compared. The Quasi-Transient model applies some simplifications compared to the Fully-Detailed model to allow faster model execution speeds. The Mapped-Component model is similar to the Quasi-Transient model except instead of detailed flow and heat transfer calculations in the heat exchangers, it uses lookup tables created with the Quasi-Transient model. All three models are set up to represent the same physical A/C system and the same electronic controls. Speed and results of the three model versions are compared for steady state and transient operation. Steady state simulated data are also compared to measured data. The results show that the Quasi-Transient and Mapped-Component models ran much faster than the Fully-Detailed model, on the order of 10- and 100-fold, respectively. They also adequately approach the results of the Fully-Detailed model for steady-state operation, and for drive cycle-based efficiency predictions

  17. Generalized Transformation Design: metrics, speeds, and diffusion

    E-Print Network [OSTI]

    Kinsler, Paul

    2015-01-01

    We show that a unified and maximally generalized approach to spatial transformation design is possible, one that encompasses all second order waves, rays, or diffusion processes in anisotropic media. At the design step it is \\emph{not} necessary to specify the physical process for which a specific device will be -- or is intended to be -- built. The primary approximation required is that the effect of wave impedance is neglected, an attribute that plays no role in ray propagation, and therefore is not relevant for pure ray devices; another constraint is that spatial variation in material parameters may need to be sufficiently small. Device construction relies on how we can re-imagine the abstract mathematical notion of a metric on a manifold as a speed-squared matrix (or a diffusion matrix), a step which also specifies the means by which transformation devices will actually be built. Notably, we can conclude that a generalised ray theory that allows for anisotropic indexes (speeds) generates the same predicti...

  18. DOE-2 sample run book: Version 2.1E

    SciTech Connect (OSTI)

    Winkelmann, F.C.; Birdsall, B.E.; Buhl, W.F.; Ellington, K.L.; Erdem, A.E. [Lawrence Berkeley Lab., CA (United States); Hirsch, J.J.; Gates, S. [Hirsch (James J.) and Associates, Camarillo, CA (United States)

    1993-11-01

    The DOE-2 Sample Run Book shows inputs and outputs for a variety of building and system types. The samples start with a simple structure and continue to a high-rise office building, a medical building, three small office buildings, a bar/lounge, a single-family residence, a small office building with daylighting, a single family residence with an attached sunspace, a ``parameterized`` building using input macros, and a metric input/output example. All of the samples use Chicago TRY weather. The main purpose of the Sample Run Book is instructional. It shows the relationship of LOADS-SYSTEMS-PLANT-ECONOMICS inputs, displays various input styles, and illustrates many of the basic and advanced features of the program. Many of the sample runs are preceded by a sketch of the building showing its general appearance and the zoning used in the input. In some cases we also show a 3-D rendering of the building as produced by the program DrawBDL. Descriptive material has been added as comments in the input itself. We find that a number of users have loaded these samples onto their editing systems and use them as ``templates`` for creating new inputs. Another way of using them would be to store various portions as files that can be read into the input using the {number_sign}{number_sign} include command, which is part of the Input Macro feature introduced in version DOE-2.lD. Note that the energy rate structures here are the same as in the DOE-2.lD samples, but have been rewritten using the new DOE-2.lE commands and keywords for ECONOMICS. The samples contained in this report are the same as those found on the DOE-2 release files. However, the output numbers that appear here may differ slightly from those obtained from the release files. The output on the release files can be used as a check set to compare results on your computer.

  19. Measurement of rotordynamic coefficients for a high-speed flexure pivot tilting-pad bearing(load between pad) configuration 

    E-Print Network [OSTI]

    Al-Ghasem, Adnan Mahmoud

    2005-08-29

    . ? ? ? ?? ? ? ? ?? ? ?? ?+ ?? ? ?? ? ? ? ?? ? ?? ?+ ?? ? ?? ? ? ? ?? ? ?? ?= ?? ? ?? ?? y x M M y x C C y x K K f f yy xy yy xy yy xy by bx && && & & In performing a stability analysis of high-speed machinery running on tilting-pad bearings, one would ask if the rotordynamic coefficients should be calculated at the synchronous...

  20. STATUS OF COLUMBIA RIVER BLUEBACK SALMON RUNS, 1951

    E-Print Network [OSTI]

    STATUS OF COLUMBIA RIVER BLUEBACK SALMON RUNS, 1951 Marine Biological Laboratory J'JN13 1952 WOODS AND WILDLIFE SERVICE #12;#12;STATUS OF COLUMBIA RIVER BLUEBACK SALMON RUNS, 1951 Marine Biological Laboratory J blueback salmon counts over Bonneville and Rock Island Dams and total run data 1938-51 8 5. Columbia River

  1. SALMON RUNS -UPPER COLUMBIA RIVER, 1956-57

    E-Print Network [OSTI]

    364; SALMON RUNS - UPPER COLUMBIA RIVER, 1956-57 Marine Biological Laboratory WOODS HOLE, MAt L. McKernan, Director SALMON RUNS - UPPER COLUMBIA RIVER. 1956-57 by R. R. French and R. J. Wahle Dams. IV #12;SALMON RUNS - UPPER COLUMBIA RIVER, 1956-57 by R. R. French and R. J. Wahle ABSTRACT

  2. WINTER-RUN CHINOOK SALMON IN THE SACRAMENTO RIVER, CALIFORNIA

    E-Print Network [OSTI]

    461 WINTER-RUN CHINOOK SALMON IN THE SACRAMENTO RIVER, CALIFORNIA WITH NOTES ON WATER TEMPERATURE REPORT-FISHERIES Na 461 #12;#12;WINTER-RUN CHINOOK SALMON IN THE SACRAMENTO RIVER, CALIFORNIA WITH NOTES HAMILTON CITY O Frontispiece.--Upper Sacramento River and Tributaries iv #12;WINTER-RUN CHINOOK SALMON

  3. A High Speed Pairing Coprocessor Using RNS and Lazy Reduction

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    A High Speed Pairing Coprocessor Using RNS and Lazy Reduction Gavin Xiaoxu Yao1 , Junfeng Fan2 using Residue Number System (RNS) and lazy reduction. We show that combining RNS, which are naturally pairing computation in 0.664 ms. Keywords: RNS, Moduli Selection, Hardware Implementation of Pairing, FPGA

  4. Increasing the High Speed Torque of Bipolar Stepper

    E-Print Network [OSTI]

    Peters, Dennis

    the windings of the motor dictates the high speed torque. This application note shows that increasing the slew rates of the winding currents in a bipolar stepper motor pushes the motor to deliver more torque at high°) bipolar currents (Figure 1) energize the windings of a bipolar stepper motor. One step occurs at each

  5. ATLAS Distributed Computing in LHC Run2

    E-Print Network [OSTI]

    Campana, Simone; The ATLAS collaboration

    2015-01-01

    The ATLAS Distributed Computing infrastructure has evolved after the first period of LHC data taking in order to cope with the challenges of the upcoming LHC Run2. An increased data rate and computing demands of the Monte-Carlo simulation, as well as new approaches to ATLAS analysis, dictated a more dynamic workload management system (ProdSys2) and data management system (Rucio), overcoming the boundaries imposed by the design of the old computing model. In particular, the commissioning of new central computing system components was the core part of the migration toward the flexible computing model. The flexible computing utilization exploring the opportunistic resources such as HPC, cloud, and volunteer computing is embedded in the new computing model, the data access mechanisms have been enhanced with the remote access, and the network topology and performance is deeply integrated into the core of the system. Moreover a new data management strategy, based on defined lifetime for each dataset, has been defin...

  6. Running Time vs. Processors Processors, K

    E-Print Network [OSTI]

    Kaminsky, Alan

    a ST W T S 1 1 0 1E0 1E1 1E2 1E3 1E4 N = 10M N = 20M N = 40M N = 80M N = 160M N = 320M Running Time ikjm Q vwe b X UW ST h de cf a ST cT e Q xwe b X UW ST h a ST W T S 1 1 0 100 1E1 1E2 1E3 1E4 N ¤¨ § " ) $ 0 ¤ ¡ 2 67 8 8 9@ 9A AB A 8@ CD @ 97 7E FD G E HI 8P Q RST UVWXY `TXa bcWde f Xd gW T h ciW pqr st

  7. Migration Patterns of Juvenile Winter-run-sized Chinook Salmon (Oncorhynchus tshawytscha) through the Sacramento–San Joaquin Delta

    E-Print Network [OSTI]

    2013-01-01

    above normal water year brought rain events and winter-runFor example, early rain events in 2006, a wet water year,late-arriving rain events of 2001, a dry water year, showed

  8. Potential ecological impacts analysis of California high speed rail

    E-Print Network [OSTI]

    Cameron, Dick; White, Mike; Stallcup, Jerre Ann; Penrod, Kristeen

    2005-01-01

    the proposed California High Speed Rail project as detailedquestion of choosing the high speed rail modal alternativeand was based on high speed rail alignment data, including

  9. Southeast high speed rail (SEHSR): a case study

    E-Print Network [OSTI]

    Gallagher, William

    2005-01-01

    transportation system. High speed rail service will provideof 100 – 500 miles. High speed rail in the Southeast willcoalition to develop a high speed rail network connecting

  10. How occasional backstepping can speed up a processive motor protein

    E-Print Network [OSTI]

    M. Bier; F. J. Cao

    2008-04-13

    Fueled by the hydrolysis of ATP, the motor protein kinesin literally walks on two legs along the biopolymer microtubule. The number of accidental backsteps that kinesin takes appears to be much larger than what one would expect given the amount of free energy that ATP hydrolysis makes available. This is puzzling as more than a billion years of natural selection should have optimized the motor protein for its speed and efficiency. But more backstepping allows for the production of more entropy. Such entropy production will make free energy available. With this additional free energy, the catalytic cycle of the kinesin can be speeded up. We show how measured backstep percentages represent an optimum at which maximal net forward speed is achieved.

  11. High speed sampler and demultiplexer

    DOE Patents [OSTI]

    McEwan, T.E.

    1995-12-26

    A high speed sampling demultiplexer based on a plurality of sampler banks, each bank comprising a sample transmission line for transmitting an input signal, a strobe transmission line for transmitting a strobe signal, and a plurality of sampling gates at respective positions along the sample transmission line for sampling the input signal in response to the strobe signal. Strobe control circuitry is coupled to the plurality of banks, and supplies a sequence of bank strobe signals to the strobe transmission lines in each of the plurality of banks, and includes circuits for controlling the timing of the bank strobe signals among the banks of samplers. Input circuitry is included for supplying the input signal to be sampled to the plurality of sample transmission lines in the respective banks. The strobe control circuitry can repetitively strobe the plurality of banks of samplers such that the banks of samplers are cycled to create a long sample length. Second tier demultiplexing circuitry is coupled to each of the samplers in the plurality of banks. The second tier demultiplexing circuitry senses the sample taken by the corresponding sampler each time the bank in which the sampler is found is strobed. A plurality of such samples can be stored by the second tier demultiplexing circuitry for later processing. Repetitive sampling with the high speed transient sampler induces an effect known as ``strobe kickout``. The sample transmission lines include structures which reduce strobe kickout to acceptable levels, generally 60 dB below the signal, by absorbing the kickout pulses before the next sampling repetition. 16 figs.

  12. High speed sampler and demultiplexer

    DOE Patents [OSTI]

    McEwan, Thomas E. (Livermore, CA)

    1995-01-01

    A high speed sampling demultiplexer based on a plurality of sampler banks, each bank comprising a sample transmission line for transmitting an input signal, a strobe transmission line for transmitting a strobe signal, and a plurality of sampling gates at respective positions along the sample transmission line for sampling the input signal in response to the strobe signal. Strobe control circuitry is coupled to the plurality of banks, and supplies a sequence of bank strobe signals to the strobe transmission lines in each of the plurality of banks, and includes circuits for controlling the timing of the bank strobe signals among the banks of samplers. Input circuitry is included for supplying the input signal to be sampled to the plurality of sample transmission lines in the respective banks. The strobe control circuitry can repetitively strobe the plurality of banks of samplers such that the banks of samplers are cycled to create a long sample length. Second tier demultiplexing circuitry is coupled to each of the samplers in the plurality of banks. The second tier demultiplexing circuitry senses the sample taken by the corresponding sampler each time the bank in which the sampler is found is strobed. A plurality of such samples can be stored by the second tier demultiplexing circuitry for later processing. Repetitive sampling with the high speed transient sampler induces an effect known as "strobe kickout". The sample transmission lines include structures which reduce strobe kickout to acceptable levels, generally 60 dB below the signal, by absorbing the kickout pulses before the next sampling repetition.

  13. Getting the Most Out of a Show

    Broader source: Energy.gov [DOE]

    These guidelines are designed to assist you during the event, in order to get the most out of the showing of your exhibit.

  14. ZEBRAlliance Research Project Shows Promising Results | ORNL

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

    Tennessee homes built with the goal of decreasing the cost of residential ground-source heat pump installation. The project's goal is to show consumers how affordable and...

  15. Effects of Relativity Lead to"Warp Speed" Computations

    SciTech Connect (OSTI)

    Vay, J.-L.

    2007-11-01

    A scientist at Lawrence Berkeley National Laboratory has discovered that a previously unnoticed consequence of Einstein's special theory of relativity can lead to speedup of computer calculations by orders of magnitude when applied to the computer modeling of a certain class of physical systems. This new finding offers the possibility of tackling some problems in a much shorter time and with far more precision than was possible before, as well as studying some configurations in every detail for the first time. The basis of Einstein's theory is the principle of relativity, which states that the laws of physics are the same for all observers, whether the 'observer' is a turtle 'racing' with a rabbit, or a beam of particles moving at near light speed. From the invariance of the laws of physics, one may be tempted to infer that the complexity of a system is independent of the motion of the observer, and consequently, a computer simulation will require the same number of mathematical operations, independently of the reference frame that is used for the calculation. Length contraction and time dilation are well known consequences of the special theory of relativity which lead to very counterintuitive effects. An alien observing human activity through a telescope in a spaceship traveling in the Vicinity of the earth near the speed of light would see everything flattened in the direction of propagation of its spaceship (for him, the earth would have the shape of a pancake), while all motions on earth would appear extremely slow, slowed almost to a standstill. Conversely, a space scientist observing the alien through a telescope based on earth would see a flattened alien almost to a standstill in a flattened spaceship. Meanwhile, an astronaut sitting in a spaceship moving at some lower velocity than the alien spaceship with regard to earth might see both the alien spaceship and the earth flattened in the same proportion and the motion unfolding in each of them at the same speed. Let us now assume that each protagonist (the alien, the space scientist and the astronaut) is to run a computer simulation describing the motion of all of them in a single calculation. In order to model a physical system on a computer, scientists often divide space and time into small chunks. Since the computer must calculated some things for each chunk, having a large system containing numerous small chunks translates to long calculations requiring many computational steps on supercomputers. Let us assume that each protagonist of our intergalactic story uses the space and time slicing as described and chooses to perform the calculation in its own frame of reference. For the alien and the space scientist, the slicing of space and time results in an exceedingly large number of chunks, due to the wide disparity of spatial and time scales needed to describe both their own environment and motion together with the other extremely flattened environment and slowed motion. Since the disparity of scales is reduced for the astronaut, who is traveling at an intermediate velocity, the number of computer operations needed to complete the calculation in his frame of reference will be significantly lower, possibly by many orders of magnitude. Analogously, the new discovery at Lawrence Berkeley National Laboratory shows that there exists a frame of reference minimizing the number of computational operations needed for studying the interaction of beams of particles or light (lasers) interacting at, or near, light speed with other particles or with surrounding structures. Speedups ranging from ten to a million times or more are predicted for the modeling of beams interacting with electron clouds, such as those in the upcoming Large Hadron Collider 'atom smasher' accelerator at CERN (Switzerland), and in free electron lasers and tabletop laser wakefield accelerators. The discovery has surprised many physicists and was received initially with much skepticism. It sounded too much like a 'free lunch'. Yet, the demonstration of a speedup of a stunning one thousand times in a te

  16. APEX: A Prime EXperiment at Jefferson Lab - Test Run Results and Full Run Plans; Update

    SciTech Connect (OSTI)

    Beacham, James

    2015-06-01

    APEX is an experiment at Thomas Jefferson National Accelerator Facility (JLab) in Virginia, USA, that searches for a new gauge boson (A') with sub-GeV mass and coupling to ordinary matter of g' ~ (10^-6 - 10?²)e. Electrons impinge upon a fixed target of high-Z material. An A' is produced via a process analogous to photon bremsstrahlung, decaying to an e?+e? pair. A test run was held in July of 2010, covering mA' = 175 to 250 MeV and couplings g'/e > 10?³. A full run is approved and will cover mA' ~ 65 to 525 MeV and g'/e > 2.3 x 10??, and is expected to occur sometime in 2016 or 2017.

  17. Active control system for high speed windmills

    DOE Patents [OSTI]

    Avery, D.E.

    1988-01-12

    A pump stroke is matched to the operating speed of a high speed windmill. The windmill drives a hydraulic pump for a control. Changes in speed of a wind driven shaft open supply and exhaust valves to opposite ends of a hydraulic actuator to lengthen and shorten an oscillating arm thereby lengthening and shortening the stroke of an output pump. Diminishing wind to a stall speed causes the valves to operate the hydraulic cylinder to shorten the oscillating arm to zero. A pressure accumulator in the hydraulic system provides the force necessary to supply the hydraulic fluid under pressure to drive the actuator into and out of the zero position in response to the windmill shaft speed approaching and exceeding windmill stall speed. 4 figs.

  18. Active control system for high speed windmills

    DOE Patents [OSTI]

    Avery, Don E. (45-437 Akimala St., Honolulu, HI 96744)

    1988-01-01

    A pump stroke is matched to the operating speed of a high speed windmill. The windmill drives a hydraulic pump for a control. Changes in speed of a wind driven shaft open supply and exhaust valves to opposite ends of a hydraulic actuator to lengthen and shorten an oscillating arm thereby lengthening and shortening the stroke of an output pump. Diminishing wind to a stall speed causes the valves to operate the hydraulic cylinder to shorten the oscillating arm to zero. A pressure accumulator in the hydraulic system provides the force necessary to supply the hydraulic fluid under pressure to drive the actuator into and out of the zero position in response to the windmill shaft speed approaching and exceeding windmill stall speed.

  19. Performance of the ATLAS Muon Trigger in Run I and Upgrades for Run II

    E-Print Network [OSTI]

    Kobayashi, Dai; The ATLAS collaboration

    2015-01-01

    The ATLAS experiment at the Large Hadron Collider (LHC) has taken data at a centre-of-mass energy between 900 GeV and 8 TeV during Run I (2009-2013). The LHC delivered an integrated luminosity of about 20fb-1 in 2012, which required dedicated strategies to guard the highest possible physics output while reducing effectively the event rate. The Muon High Level Trigger has successfully adapted to the changing environment of a low luminosity in 2010 to the luminosities encountered in 2012. The selection strategy has been optimized for the various physics analyses involving muons in the final state. We will present the excellent performance achieved during Run I. In preparation for the next data taking period (Run II) several hardware and software upgrades to the ATLAS Muon Trigger have been performed to deal with the increased trigger rate expected at higher center of mass energy and increased instantaneous luminosity. We will highlight the development of novel algorithms that have been developed to maintain a h...

  20. Performance of the ATLAS Muon Trigger in Run I and Upgrades for Run II

    E-Print Network [OSTI]

    Kobayashi, Dai; The ATLAS collaboration

    2015-01-01

    The ATLAS experiment at the Large Hadron Collider (LHC) has taken data at a centre-of-mass energy between 900 GeV and 8 TeV during Run I (2009-2013). The LHC delivered an integrated luminosity of about 20 fb?1 in 2012, which required dedicated strategies to guard the highest possible physics output while reducing effectively the event rate. The Muon High Level Trigger has successfully adapted to the changing environment of a low luminosity in 2010 to the luminosities encountered in 2012. The selection strategy has been optimized for the various physics analyses involving muons in the final state. We will present the excellent performance achieved during Run I. In preparation for the next data taking period (Run II) several hardware and software upgrades to the ATLAS Muon Trigger have been performed to deal with the increased trigger rate expected at higher center of mass energy and increased instantaneous luminosity. We will highlight the development of novel algorithms that have been developed to maintain ...

  1. The NUHM? after LHC Run 1

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

    Buchmueller, O.; Cavanaugh, R.; Citron, M.; De Roeck, A.; Dolan, M. J.; Ellis, J. R.; Flächer, H.; Heinemeyer, S.; Malik, S.; Marrouche, J.; et al

    2014-12-17

    We make a frequentist analysis of the parameter space of the NUHM2, in which the soft supersymmetry (SUSY)-breaking contributions to the masses of the two Higgs multiplets, m2Hu,d, vary independently from the universal soft SUSY-breaking contributions m20 to the masses of squarks and sleptons. Our analysis uses the MultiNest sampling algorithm with over 4 × 10? points to sample the NUHM2 parameter space. It includes the ATLAS and CMS Higgs mass measurements as well as the ATLAS search for supersymmetric jets + /ET signals using the full LHC Run 1 data, the measurements of BR(Bs?????) by LHCb and CMS togethermore »with other B-physics observables, electroweak precision observables and the XENON100 and LUX searches for spin-independent dark-matter scattering. We find that the preferred regions of the NUHM2 parameter space have negative SUSY-breaking scalar masses squared at the GUT scale for squarks and sleptons, m20 2Hu 2Hd 2 = 32.5 with 21 degrees of freedom (dof) in the NUHM2, to be compared with ?2/dof = 35.0/23 in the CMSSM, and ?2/dof = 32.7/22 in the NUHM1. We find that the one-dimensional likelihood functions for sparticle masses and other observables are similar to those found previously in the CMSSM and NUHM1.« less

  2. The NUHM2 after LHC Run 1

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

    Buchmueller, O.; Cavanaugh, R.; Citron, M.; De Roeck, A.; Dolan, M. J.; Ellis, J. R.; Flächer, H.; Heinemeyer, S.; Malik, S.; Marrouche, J.; et al

    2014-12-17

    We make a frequentist analysis of the parameter space of the NUHM2, in which the soft supersymmetry (SUSY)-breaking contributions to the masses of the two Higgs multiplets, m2Hu,d, vary independently from the universal soft SUSY-breaking contributions m20 to the masses of squarks and sleptons. Our analysis uses the MultiNest sampling algorithm with over 4 × 10? points to sample the NUHM2 parameter space. It includes the ATLAS and CMS Higgs mass measurements as well as the ATLAS search for supersymmetric jets + /ET signals using the full LHC Run 1 data, the measurements of BR(Bs?????) by LHCb and CMS togethermore »with other B-physics observables, electroweak precision observables and the XENON100 and LUX searches for spin-independent dark-matter scattering. We find that the preferred regions of the NUHM2 parameter space have negative SUSY-breaking scalar masses squared at the GUT scale for squarks and sleptons, m20 2Hu 2Hd 2 = 32.5 with 21 degrees of freedom (dof) in the NUHM2, to be compared with ?2/dof = 35.0/23 in the CMSSM, and ?2/dof = 32.7/22 in the NUHM1. We find that the one-dimensional likelihood functions for sparticle masses and other observables are similar to those found previously in the CMSSM and NUHM1.« less

  3. FPGA Trigger System to Run Klystrons

    SciTech Connect (OSTI)

    Gray, Darius; /Texas A-M /SLAC

    2010-08-25

    The Klystron Department is in need of a new trigger system to update the laboratory capabilities. The objective of the research is to develop the trigger system using Field Programmable Gate Array (FPGA) technology with a user interface that will allow one to communicate with the FPGA via a Universal Serial Bus (USB). This trigger system will be used for the testing of klystrons. The key materials used consists of the Xilinx Integrated Software Environment (ISE) Foundation, a Programmable Read Only Memory (Prom) XCF04S, a Xilinx Spartan 3E 35S500E FPGA, Xilinx Platform Cable USB II, a Printed Circuit Board (PCB), a 100 MHz oscillator, and an oscilloscope. Key considerations include eight triggers, two of which have variable phase shifting capabilities. Once the project was completed the output signals were able to be manipulated via a Graphical User Interface by varying the delay and width of the signal. This was as planned; however, the ability to vary the phase was not completed. Future work could consist of being able to vary the phase. This project will give the operators in the Klystron Department more flexibility to run various tests.

  4. Impacts of a conspicuity treatment on speed limit compliance 

    E-Print Network [OSTI]

    Garg, Roma

    2007-09-17

    In reduced speed zones, where no other cues indicate the need to slow down, drivers sometimes fail to notice the standard Speed Limit sign and may be speeding inadvertently. To help reduce inadvertent speeding, a red ...

  5. Dangerous Bodies: Freak Shows, Expression, and Exploitation

    E-Print Network [OSTI]

    Fordham, Brigham A.

    2007-01-01

    Dangerous Bodies: Freak Shows, Expression, and ExploitationR.I. GEN. LAWS § 11-9-1. DANGEROUS BODIES Rhode Island does161 Id. Id. 165 id. 166 Id. DANGEROUS BODIES This argument

  6. Incident Response Planning for Selected Livestock Shows 

    E-Print Network [OSTI]

    Tomascik, Chelsea Roxanne

    2012-02-14

    Incidents affecting the livestock industry are unavoidable in today's society. These incidents can happen at livestock shows across the country putting thousands of exhibitors, visitors, employees and livestock in danger. The purpose of this study...

  7. High speed imager test station

    DOE Patents [OSTI]

    Yates, G.J.; Albright, K.L.; Turko, B.T.

    1995-11-14

    A test station enables the performance of a solid state imager (herein called a focal plane array or FPA) to be determined at high image frame rates. A programmable waveform generator is adapted to generate clock pulses at determinable rates for clock light-induced charges from a FPA. The FPA is mounted on an imager header board for placing the imager in operable proximity to level shifters for receiving the clock pulses and outputting pulses effective to clock charge from the pixels forming the FPA. Each of the clock level shifters is driven by leading and trailing edge portions of the clock pulses to reduce power dissipation in the FPA. Analog circuits receive output charge pulses clocked from the FPA pixels. The analog circuits condition the charge pulses to cancel noise in the pulses and to determine and hold a peak value of the charge for digitizing. A high speed digitizer receives the peak signal value and outputs a digital representation of each one of the charge pulses. A video system then displays an image associated with the digital representation of the output charge pulses clocked from the FPA. In one embodiment, the FPA image is formatted to a standard video format for display on conventional video equipment. 12 figs.

  8. High speed imager test station

    DOE Patents [OSTI]

    Yates, George J. (Santa Fe, NM); Albright, Kevin L. (Los Alamos, NM); Turko, Bojan T. (Moraga, CA)

    1995-01-01

    A test station enables the performance of a solid state imager (herein called a focal plane array or FPA) to be determined at high image frame rates. A programmable waveform generator is adapted to generate clock pulses at determinable rates for clock light-induced charges from a FPA. The FPA is mounted on an imager header board for placing the imager in operable proximity to level shifters for receiving the clock pulses and outputting pulses effective to clock charge from the pixels forming the FPA. Each of the clock level shifters is driven by leading and trailing edge portions of the clock pulses to reduce power dissipation in the FPA. Analog circuits receive output charge pulses clocked from the FPA pixels. The analog circuits condition the charge pulses to cancel noise in the pulses and to determine and hold a peak value of the charge for digitizing. A high speed digitizer receives the peak signal value and outputs a digital representation of each one of the charge pulses. A video system then displays an image associated with the digital representation of the output charge pulses clocked from the FPA. In one embodiment, the FPA image is formatted to a standard video format for display on conventional video equipment.

  9. Detecting and Blocking Network Attacks at Ultra High Speeds

    SciTech Connect (OSTI)

    Paxson, Vern

    2010-11-29

    Stateful, in-depth, in-line traffic analysis for intrusion detection and prevention has grown increasingly more difficult as the data rates of modern networks rise. One point in the design space for high-performance network analysis - pursued by a number of commercial products - is the use of sophisticated custom hardware. For very high-speed processing, such systems often cast the entire analysis process in ASICs. This project pursued a different architectural approach, which we term Shunting. Shunting marries a conceptually quite simple hardware device with an Intrusion Prevention System (IPS) running on commodity PC hardware. The overall design goal is was to keep the hardware both cheap and readily scalable to future higher speeds, yet also retain the unparalleled flexibility that running the main IPS analysis in a full general-computing environment provides. The Shunting architecture we developed uses a simple in-line hardware element that maintains several large state tables indexed by packet header fields, including IP/TCP flags, source and destination IP addresses, and connection tuples. The tables yield decision values the element makes on a packet-by-packet basis: forward the packet, drop it, or divert ('shunt') it through the IPS (the default). By manipulating table entries, the IPS can, on a fine-grained basis: (i) specify the traffic it wishes to examine, (ii) directly block malicious traffic, and (iii) 'cut through' traffic streams once it has had an opportunity to 'vet' them, or (iv) skip over large items within a stream before proceeding to further analyze it. For the Shunting architecture to yield benefits, it needs to operate in an environment for which the monitored network traffic has the property that - after proper vetting - much of it can be safely skipped. This property does not universally hold. For example, if a bank needs to examine all Web traffic involving its servers for regulatory compliance, then a monitor in front of one of the bank's server farms cannot safely omit a subset of the traffic from analysis. In this environment, Shunting cannot realize its main performance benefits, and the monitoring task likely calls for using custom hardware instead. However, in many other environments we find Shunting holds promise for delivering major performance gains. This arises due to the the widely documented 'heavy tail' nature of most forms of network traffic, which we might express as 'a few of the connections carry just about all the bytes.' The key additional insight is '... and very often for these few large connections, the very beginning of the connection contains nearly all the information of interest from a security analysis perspective.' We argue that this second claim holds because it is at the beginning of connections that authentication exchanges occur, data or file names and types are specified, request and reply status codes conveyed, and encryption is negotiated. Once these occur, we have seen most of the interesting facets of the dialog. Certainly the remainder of the connection might also yield some grist for analysis, but this is generally less likely, and thus if we want to lower analysis load at as small a loss as possible of information relevant to security analysis, we might best do so by skipping the bulk of large connections. In a different context, the 'Time Machine' work by Kornexl and colleagues likewise shows that in some environments we can realize major reductions in the volume of network traffic processed, by limiting the processing to the first 10-20 KB of each connection. As a concrete example, consider an IPS that monitors SSH traffic. When a new SSH connection arrives and the Shunt fails to find an entry for it in any of its tables (per-address, per-port, per-connection), it executes the default action of diverting the connection through the IPS. The IPS analyzes the beginning of the connection in this fashion. As long as it is satisified with the dialog, it reinjects the packets forwarded to it so that the connection can continue. If the connection successfully

  10. REDUCTION OF EMISSIONS FROM A HIGH SPEED FERRY

    SciTech Connect (OSTI)

    Thompson,G.; Gautam, M; Clark, N; Lyons, D; Carder, D; Riddle, W; Barnett, R; Rapp, B; George, S

    2003-08-24

    Emissions from marine vessels are being scrutinized as a major contributor to the total particulate matter (TPM), oxides of sulfur (SOx) and oxides of nitrogen (NOx) environmental loading. Fuel sulfur control is the key to SOx reduction. Significant reductions in the emissions from on-road vehicles have been achieved in the last decade and the emissions from these vehicles will be reduced by another order of magnitude in the next five years: these improvements have served to emphasize the need to reduce emissions from other mobile sources, including off road equipment, locomotives, and marine vessels. Diesel-powered vessels of interest include ocean going vessels with low- and medium-speed engines, as well as ferries with high speed engines, as discussed below. A recent study examined the use of intake water injection (WIS) and ultra low sulfur diesel (ULSD) to reduce the emissions from a high-speed passenger ferry in southern California. One of the four Detroit Diesel 12V92 two-stroke high speed engines that power the Waverider (operated by SCX, inc.) was instrumented to collect intake airflow, fuel flow, shaft torque, and shaft speed. Engine speed and shaft torque were uniquely linked for given vessel draft and prevailing wind and sea conditions. A raw exhaust gas sampling system was utilized to measure the concentration of NOx, carbon dioxide (CO2), and oxygen (O2) and a mini dilution tunnel sampling a slipstream from the raw exhaust was used to collect TPM on 70 mm filters. The emissions data were processed to yield brake-specific mass results. The system that was employed allowed for redundant data to be collected for quality assurance and quality control. To acquire the data, the Waverider was operated at five different steady state speeds. Three modes were in the open sea off Oceanside, CA, and idle and harbor modes were also used. Data have showed that the use of ULSD along with water injection (WIS) could significantly reduce the emissions of NOx and PM while not affecting fuel consumption or engine performance compared to the baseline marine diesel. The results showed that a nominal 40% reduction in TPM was realized when switching from the marine diesel to the ULSD. A small reduction in NOx was also shown between the marine fuel and the ULSD. The implementation of the WIS showed that NOx was reduced significantly by between 11% and 17%, depending upon the operating condition. With the WIS, the TPM was reduced by a few percentage points, which was close to the confidence in measurement.

  11. Martinkus docos show reality of Afghanistan war

    E-Print Network [OSTI]

    Wapstra, Erik

    Martinkus docos show reality of Afghanistan war By ShAron Webb Journalist John Martinkus reels off the date he was kidnapped in the Iraq war as if it's perma- nently scratched on his brain. "It happened. It was terrible. I thought: Here we go." It's experiences like this that gave credibility to the television war

  12. Discrimination of speed in 5-year-olds and adults: Are children up to speed?

    E-Print Network [OSTI]

    Maurer, Daphne M.

    Discrimination of speed in 5-year-olds and adults: Are children up to speed? I.J. Ahmed a , T-year-olds and adults for two reference speeds: 1.5 and 6° sÀ1 . Both adults and 5-year-olds were more sensitive to changes from the faster than from the slower reference speed. Five-year-olds were less

  13. Curving Dynamics in High Speed PUBLIC VERSION

    E-Print Network [OSTI]

    Curving Dynamics in High Speed Trains PUBLIC VERSION Daniele Bigoni Kongens Lyngby 2011 IMM forces on the dynamics, due to the high speed spinning of the wheel sets, has been highlighted. The wheel-rail interaction is modeled using the Hertz's static contact theory, corrected with the Kalker

  14. Speed-line for 3D animation 

    E-Print Network [OSTI]

    Song, Won Chan

    2007-04-25

    My thesis describes a tool which creates speed-lines automatically in 3D computer animations. Speed-lines are usually used in comic books to express fast motions in a still image. They are also used in 2D animations. Although animations don't need...

  15. Methodology and Analysis for Determination of Propagation Speed of High-Speed Propulsion Devices

    E-Print Network [OSTI]

    Methodology and Analysis for Determination of Propagation Speed of High-Speed Propulsion Devices Joseph M. Powers and Keith A. Gonthier Abstract This study describes a methodology and gives an example the wave drag. For a fixed heat release greater than a critical value, two steady prop- agation speeds

  16. Indexes for selected equipment show moderate increase

    SciTech Connect (OSTI)

    Farrar, G.

    1997-04-07

    Costs for six selected equipment items used in refining construction operations have been surveyed for the 3 years, 1994--1996. The accompanying table shows Nelson-Farrar equipment indexes for these items of equipment. The six categories of equipment tracked are bubble trays, fractionating towers, tube stills, valves and fittings, tanks and pressure vessels, and non-metallic building materials. Tables also present data on operating costs for materials, labor, and equipment.

  17. RIS-M-2471 RUN-OFF FROM ROOFS

    E-Print Network [OSTI]

    RISØ-M-2471 RUN-OFF FROM ROOFS Jørn Roed Abstract. In order to find the run-off from roof material a roof has been constructed with two different slopes (30° and 45°). Beryllium-7 and caesium-137 has been used as tracers. Considering new roof material the pollution removed by runoff processes has been shown

  18. Review of recent LHCb results and prospects for Run II

    E-Print Network [OSTI]

    Hicheur, A

    2015-01-01

    As first Run II data acquisition has begun, it is useful to expose the pending questions by reviewing some of the most recent results obtained with Run I data analyses. Early results of the current data taking and middle-term prospects are also shown to illustrate the efficiency of the acquisition and analysis chain.

  19. Review of recent LHCb results and prospects for Run II

    E-Print Network [OSTI]

    A. Hicheur

    2015-09-25

    As first Run II data acquisition has begun, it is useful to expose the pending questions by reviewing some of the most recent results obtained with Run I data analyses. Early results of the current data taking and middle-term prospects are also shown to illustrate the efficiency of the acquisition and analysis chain.

  20. Status of the CDF Run II Silicon Detector

    SciTech Connect (OSTI)

    S. Nahn

    2003-04-10

    A snapshot of the status of the CDF Run II Silicon Detector is presented, with a summary of commissioning issues since the start of Run II, current performance of the detector, and the use of the data in both the trigger and offline reconstruction.

  1. Running of scalar spectral index in multi-field inflation

    E-Print Network [OSTI]

    Jinn-Ouk Gong

    2015-05-20

    We compute the running of the scalar spectral index in general multi-field slow-roll inflation. By incorporating explicit momentum dependence at the moment of horizon crossing, we can find the running straightforwardly. At the same time, we can distinguish the contributions from the quasi de Sitter background and the super-horizon evolution of the field fluctuations.

  2. d Onion River Review d river run by

    E-Print Network [OSTI]

    Weaver, Adam Lee

    d Onion River Review d 2012 d river run by Alex Dugas Lauren Fish Heather Lessard Jenna Mc jokes. Together these things helped shape the 2012 edition of the Onion River Review. A worthwhile departing on an adventure, you simply have no idea what will happen or who you will meet. You may run

  3. ATLAS Jet Trigger Performance in LHC Run I and Initial Run II Results

    E-Print Network [OSTI]

    Shimizu, Shima; The ATLAS collaboration

    2015-01-01

    The immense rate of proton-proton collisions at the Large Hadron Collider (LHC) must be reduced from the nominal bunch-crossing rate of 40 MHz to approximately 1 kHz before the data can be written on disk offline. The ATLAS Trigger System performs real-time selection of these events in order to achieve this reduction. Dedicated selection of events containing jets is uniquely challenging at a hadron collider where nearly every event contains significant hadronic energy. Following the very successful first LHC run from 2010 to 2012, the ATLAS Trigger was much improved, including a new hardware topological module and a restructured High Level Trigger system, merging two previous software-based processing levels. This allowed the optimization of resources and a much greater re-use of the precise but costly offline software base. After summarising the overall performance of the jet trigger during the first LHC run, the software design choices and use of the topological module will be reviewed. The expected perform...

  4. Effects of technicolor on standard model running couplings

    E-Print Network [OSTI]

    B. Holdom; Randy Lewis

    1994-02-18

    We discuss the running couplings in the standard model, SU(3$)_C \\times $SU(2$)_L \\times $U(1$)_Y$, when the Higgs sector is replaced by SU($N_{TC})$ technicolor. Particular attention is given to the running of the couplings at momentum scales where technicolor is nonperturbative, and in this region we apply a relativistic constituent technifermion model. This model has been tested against the known running of the QED coupling due to nonperturbative QCD. An understanding of this low momentum running allows the calculation of the couplings at a higher scale, $\\Lambda_{pert}$, where technicolor becomes perturbative. We provide numerical values for the changes in the three standard model couplings between $m_Z$ and $\\Lambda_{pert}$ due to technicolor, assuming separately ``one doublet'' and ``one family'' technicolor models. The distinction between a running and walking technicolor coupling is also considered.

  5. A Machian Version of Einstein's Variable Speed of Light Theory

    E-Print Network [OSTI]

    Alexander Unzicker; Jan Preuss

    2015-03-28

    It is a little known fact that while he was developing his theory of general relativity, Einstein's initial idea was a variable speed of light theory. Indeed space-time curvature can be mimicked by a speed of light $c(r)$ that depends on the distribution of masses. Einstein's 1911 theory was considerably improved by Robert Dicke in 1957, but only recently has the equivalence of the variable speed of light approach to the conventional formalism been demonstrated (Broekaert, 2008). Using Green's functions, we show that Einstein's 1911 idea can be expressed in an analytic form, similar to the Poisson equation. Using heuristic arguments, we derive a simple formula that directly relates curvature $w$ to the local speed of light, $w= -c^2 \\Delta \\frac{1}{c^2}$. In contrast to the conventional formulation, this allows for a Machian interpretation of general relativity and the gravitational constant $G$. Gravity, though described by local equations, has its origin in all other masses in the universe.

  6. Characterizing the speed and paths of shared bicycles in Lyon

    E-Print Network [OSTI]

    Jensen, Pablo; Ovtracht, Nicolas; Robardet, Céline; 10.1016/j.trd.2010.07.002

    2010-01-01

    Thanks to numerical data gathered by Lyon's shared bicycling system V\\'elo'v, we are able to analyze 11.6 millions bicycle trips, leading to the first robust characterization of urban bikers' behaviors. We show that bicycles outstrip cars in downtown Lyon, by combining high speed and short paths.These data also allows us to calculate V\\'elo'v fluxes on all streets, pointing to interesting locations for bike paths.

  7. Show Me Ethanol LLC | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EIS ReportEurope GmbH Jump to: navigation,Show Me Ethanol LLC Jump to:

  8. FY2009 Run Campaign Highlights Roger Raman

    E-Print Network [OSTI]

    Princeton Plasma Physics Laboratory

    Capabilities for 2009: · Routine Li usage ( 65% of shots) · CHI absorber PF coils · HHFW antenna grounding to Retention Milestone Important for Understanding Li pumping, ITER T Retention PMI probe measurements show Li increases global retention from 87% to 93% in NBI-heated plasmas With Li Without Li 4 #12;NSTXNSTX

  9. Planned search for LIGO-GBM coincidence in the first advanced LIGO data run

    E-Print Network [OSTI]

    Camp, Jordan; Briggs, Michael; Christensen, Nelson; Connaughton, Valerie; Singer, Leo; Shawhan, Peter; Veitch, John

    2015-01-01

    In the fall of 2015 the first scientific observing run (O1) of the advanced LIGO detectors will be conducted. Based on the recent commissioning progress at the LIGO Hanford and Livingston sites, the gravitational wave detector range for a neutron star binary inspiral is expected to be of order 60 Mpc. We describe here our planning for an O1 search for coincidence between a LIGO gravitational wave detection and a gamma-ray signal from the Fermi Gamma-ray Burst Monitor. Such a coincidence would constitute measurement of an electromagnetic counterpart to a gravitational wave signal, with significant corresponding scientific benefits, including revealing the central engine powering the gamma-ray burst, enhanced confidence in the event as a genuine astrophysical detection, and a determination of the relative speed of the photon and graviton.

  10. Interactive Map Shows Geothermal Resources | Department of Energy

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

    into steam to turn electric turbines. Unlike other sources of renewable energy with a low carbon footprint, such as solar or wind energy, it runs around the clock. There are 3.2...

  11. Higgs Boson in RG running Inflationary Cosmology

    E-Print Network [OSTI]

    Yi-Fu Cai; Damien A. Easson

    2013-01-07

    An intriguing hypothesis is that gravity may be non-perturbatively renormalizable via the notion of asymptotic safety. We show that the Higgs sector of the SM minimally coupled to asymptotically safe gravity can generate the observed near scale-invariant spectrum of the Cosmic Microwave Background through the curvaton mechanism. The resulting primordial power spectrum places an upper bound on the Higgs mass, which for finely tuned values of the curvaton parameters, is compatible with the recently released Large Hadron Collider data.

  12. Variability in functional connectivity maps with test-retest in individual subjects. Four subjects were scanned in two sessions on different days (4 resting state runs per

    E-Print Network [OSTI]

    Larson-Prior, Linda

    Variability in functional connectivity maps with test-retest in individual subjects. Four subjects for a total of 8 runs per subject). Correlation matrix was first grouped by subject, then by session, then by BOLD run. Functional connectivity maps showed higher correlation within an individual subject (within

  13. Speeding-up Thorium decay

    E-Print Network [OSTI]

    F. Cardone; R. Mignani; A. Petrucci

    2007-10-26

    We show that cavitation of a solution of thorium-228 in water induces its transformation at a rate 10000 times faster than the natural radioactive decay would do. This result agrees with the alteration of the secular equilibrium of thorium-234 obtained by a Russian team via explosion of titanium foils in water and solutions. These evidences further support some preliminary clues for the possibility of piezonuclear reactions (namely nuclear reactions induced by pressure waves) obtained in the last ten years.

  14. Long-run growth rate in a random multiplicative model

    SciTech Connect (OSTI)

    Pirjol, Dan [Institute for Physics and Nuclear Engineering, 077125 Bucharest (Romania)

    2014-08-01

    We consider the long-run growth rate of the average value of a random multiplicative process x{sub i+1} = a{sub i}x{sub i} where the multipliers a{sub i}=1+?exp(?W{sub i}?1/2 ?²t{sub i}) have Markovian dependence given by the exponential of a standard Brownian motion W{sub i}. The average value (x{sub n}) is given by the grand partition function of a one-dimensional lattice gas with two-body linear attractive interactions placed in a uniform field. We study the Lyapunov exponent ?=lim{sub n??}1/n log(x{sub n}), at fixed ?=1/2 ?²t{sub n}n, and show that it is given by the equation of state of the lattice gas in thermodynamical equilibrium. The Lyapunov exponent has discontinuous partial derivatives along a curve in the (?, ?) plane ending at a critical point (?{sub C}, ?{sub C}) which is related to a phase transition in the equivalent lattice gas. Using the equivalence of the lattice gas with a bosonic system, we obtain the exact solution for the equation of state in the thermodynamical limit n ? ?.

  15. A simulation-based study of HighSpeed TCP and its deployment

    SciTech Connect (OSTI)

    Souza, Evandro de

    2003-04-29

    The current congestion control mechanism used in TCP has difficulty reaching full utilization on high speed links, particularly on wide-area connections. For example, the packet drop rate needed to fill a Gigabit pipe using the present TCP protocol is below the currently achievable fiber optic error rates. HighSpeed TCP was recently proposed as a modification of TCP's congestion control mechanism to allow it to achieve reasonable performance in high speed wide-area links. In this research, simulation results showing the performance of HighSpeed TCP and the impact of its use on the present implementation of TCP are presented. Network conditions including different degrees of congestion, different levels of loss rate, different degrees of bursty traffic and two distinct router queue management policies were simulated. The performance and fairness of HighSpeed TCP were compared to the existing TCP and solutions for bulk-data transfer using parallel streams.

  16. Adjustable Speed Drive Part-Load Efficiency

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

    (AC) motor to enable it to operate over a wide speed range. External sensors monitor flow, liquid levels, or pressure and then transmit a signal to a controller that adjusts the...

  17. High speed optical quantum random number generation

    E-Print Network [OSTI]

    Weinfurter, Harald

    High speed optical quantum random number generation Martin F¨urst1,2,, Henning Weier1,2, Sebastian/publicationFile/30276/ais20 pdf.pdf (1999). 2. "Fips 140-2, security requirements for cryptographic modules

  18. Wind Speed Forecasting for Power System Operation 

    E-Print Network [OSTI]

    Zhu, Xinxin

    2013-07-22

    In order to support large-scale integration of wind power into current electric energy system, accurate wind speed forecasting is essential, because the high variation and limited predictability of wind pose profound challenges to the power system...

  19. The patterns speeds of NGC 6946

    E-Print Network [OSTI]

    Toonen, Silvia; Falcón-Barroso, Jesús; Beckman, John; de Zeeuw, Tim

    2007-01-01

    We study the kinematics of the barred spiral galaxy NGC 6946 by investigating the velocity field from H-alpha Fabry-Perot observations, determined the pattern speed of the bar by using the Tremaine-Weinberg method, and find a main pattern speed of 21.7 (+4.0,-0.8) km/s/kpc. Our data clearly suggest the presence of an additional pattern with a pattern speed more than twice that of the large pattern in this galaxy. We use the epicycle approximation to deduce the location of the resonance radii and subsequently determine the pattern speed between the radii, and find that inside the Inner Inner Lindblad Resonance radius, a bar-like system has evolved.

  20. The pattern speeds of NGC 6946

    E-Print Network [OSTI]

    Silvia Toonen; Kambiz Fathi; Jesús Falcón-Barroso; John Beckman; Tim de Zeeuw

    2008-01-18

    We study the kinematics of the barred spiral galaxy NGC 6946 by investigating the velocity field from H-alpha Fabry-Perot observations, determined the pattern speed of the bar by using the Tremaine-Weinberg method, and find a main pattern speed of 21.7 (+4.0,-0.8) km/s/kpc. Our data clearly suggest the presence of an additional pattern with a pattern speed more than twice that of the large pattern in this galaxy. We use the epicycle approximation to deduce the location of the resonance radii and subsequently determine the pattern speed between the radii, and find that inside the inner Inner Lindblad Resonance radius, a bar-like system has evolved.

  1. Speed estimation using single loop detector outputs 

    E-Print Network [OSTI]

    Ye, Zhirui

    2009-05-15

    that speed estimation is a nonlinear system under various traffic conditions. Thus, a methodology of using Unscented Kalman Filter (UKF) is first proposed for such a system. The UKF is a parametric filtering technique that is suitable for nonlinear problems...

  2. Displacement speeds in turbulent premixed flame simulations

    E-Print Network [OSTI]

    Day, Marcus S.; Shepherd, Ian G.; Bell, J.; Grcar, Joseph F.; Lijewski, Michael J.

    2008-01-01

    elds for reaction rate progress and ?uid velocity. Thefor the velocity ?elds and the scalar measure of reactionvelocity and the temperature. To evaluate the displacement speed we de?ne a reaction

  3. Quantifying hurricane wind speed with undersea sound

    E-Print Network [OSTI]

    Wilson, Joshua David

    2006-01-01

    Hurricanes, powerful storms with wind speeds that can exceed 80 m/s, are one of the most destructive natural disasters known to man. While current satellite technology has made it possible to effectively detect and track ...

  4. Preparations for p-Au run in 2015

    SciTech Connect (OSTI)

    Liu, C.

    2014-12-31

    The p-Au particle collision is a unique category of collision runs. This is resulted from the different charge mass ratio of the proton and fully stripped Au ion (1 vs.79/197). The p-Au run requires a special acceleration ramp, and movement of a number of beam components as required by the beam trajectories. The DX magnets will be moved for the first time in the history of RHIC. In this note, the planning and preparations for p-Au run will be presented.

  5. The compatibility of LHC Run 1 data with a heavy scalar of mass around 270\\,GeV

    E-Print Network [OSTI]

    Stefan von Buddenbrock; Nabarun Chakrabarty; Alan S. Cornell; Deepak Kar; Mukesh Kumar; Tanumoy Mandal; Bruce Mellado; Biswarup Mukhopadhyaya; Robert G. Reed

    2015-11-15

    The first run of the LHC was successful in that it saw the discovery of the elusive Higgs boson, a particle that is consistent with the SM hypothesis. There are a number of excesses in Run 1 ATLAS and CMS results which can be interpreted as being due to the existence of another heavier scalar particle. This particle has decay modes which we have studied using LHC Run 1 data. Using a minimalistic model, we can predict the kinematics of these final states and compare the prediction against data directly. A statistical combination of these results shows that a best fit point is found for a heavy scalar having a mass of 272$^{+12}_{-9}$\\,GeV. This result has been quantified as a three sigma effect, based on analyses which are not necessarily optimized for the search of a heavy scalar. The smoking guns for the discovery of this new heavy scalar and the prospects for Run 2 are discussed.

  6. Speed control system for an access gate

    DOE Patents [OSTI]

    Bzorgi, Fariborz M. (Knoxville, TN)

    2012-03-20

    An access control apparatus for an access gate. The access gate typically has a rotator that is configured to rotate around a rotator axis at a first variable speed in a forward direction. The access control apparatus may include a transmission that typically has an input element that is operatively connected to the rotator. The input element is generally configured to rotate at an input speed that is proportional to the first variable speed. The transmission typically also has an output element that has an output speed that is higher than the input speed. The input element and the output element may rotate around a common transmission axis. A retardation mechanism may be employed. The retardation mechanism is typically configured to rotate around a retardation mechanism axis. Generally the retardation mechanism is operatively connected to the output element of the transmission and is configured to retard motion of the access gate in the forward direction when the first variable speed is above a control-limit speed. In many embodiments the transmission axis and the retardation mechanism axis are substantially co-axial. Some embodiments include a freewheel/catch mechanism that has an input connection that is operatively connected to the rotator. The input connection may be configured to engage an output connection when the rotator is rotated at the first variable speed in a forward direction and configured for substantially unrestricted rotation when the rotator is rotated in a reverse direction opposite the forward direction. The input element of the transmission is typically operatively connected to the output connection of the freewheel/catch mechanism.

  7. The interaction of high-speed turbulence with flames: Turbulent flame speed

    SciTech Connect (OSTI)

    Poludnenko, A.Y.; Oran, E.S. [Laboratory for Computational Physics and Fluid Dynamics, Naval Research Laboratory, Washington, DC 20375 (United States)

    2011-02-15

    Direct numerical simulations of the interaction of a premixed flame with driven, subsonic, homogeneous, isotropic, Kolmogorov-type turbulence in an unconfined system are used to study the mechanisms determining the turbulent flame speed, S{sub T}, in the thin reaction zone regime. High intensity turbulence is considered with the r.m.s. velocity 35 times the laminar flame speed, S{sub L}, resulting in the Damkoehler number Da=0.05. The simulations were performed with Athena-RFX, a massively parallel, fully compressible, high-order, dimensionally unsplit, reactive-flow code. A simplified reaction-diffusion model, based on the one-step Arrhenius kinetics, represents a stoichiometric H{sub 2}-air mixture under the assumption of the Lewis number Le=1. Global properties and the internal structure of the flame were analyzed in an earlier paper, which showed that this system represents turbulent combustion in the thin reaction zone regime. This paper demonstrates that: (1) The flame brush has a complex internal structure, in which the isosurfaces of higher fuel mass fractions are folded on progressively smaller scales. (2) Global properties of the turbulent flame are best represented by the structure of the region of peak reaction rate, which defines the flame surface. (3) In the thin reaction zone regime, S{sub T} is predominantly determined by the increase of the flame surface area, A{sub T}, caused by turbulence. (4) The observed increase of S{sub T} relative to S{sub L} exceeds the corresponding increase of A{sub T} relative to the surface area of the planar laminar flame, on average, by {approx}14%, varying from only a few percent to as high as {approx}30%. (5) This exaggerated response is the result of tight flame packing by turbulence, which causes frequent flame collisions and formation of regions of high flame curvature >or similar 1/{delta}{sub L}, or ''cusps,'' where {delta}{sub L} is the thermal width of the laminar flame. (6) The local flame speed in the cusps substantially exceeds its laminar value, which results in a disproportionately large contribution of cusps to S{sub T} compared with the flame surface area in them. (7) A criterion is established for transition to the regime significantly influenced by cusp formation. In particular, at Karlovitz numbers Ka >or similar 20, flame collisions provide an important mechanism controlling S{sub T}, in addition to the increase of A{sub T} by large-scale motions and the potential enhancement of diffusive transport by small-scale turbulence. (author)

  8. High-speed synchronous reluctance machine with minimized rotor losses

    SciTech Connect (OSTI)

    Hofmann, H.; Sanders, S.R.

    2000-04-01

    This paper presents a refined design of a high-speed synchronous reluctance machine with minimized eddy-current losses in the rotor. Design criteria are the ability of the rotor to withstand high speeds, ability to operate in vacuum, negligible zero-torque spinning losses, high reliability, high efficiency, and low manufacturing cost. The rotor of the synchronous reluctance machine consists of bonded sections of ferromagnetic and non-magnetic steels. Finite-element code, incorporating rotor rotation, has been developed in MATLAB that calculates steady-state eddy currents (and losses) in the rotor. A stator iron and stator winding have been designed to minimize rotor losses, and two such prototype machines have been fabricated. Experimental results show an efficiency of 91% at a 10-kW 10,000-r/min operating point, and rotor losses less than 0.5% of input power.

  9. The Limiting Speed of the Bacterial Flagellar Motor

    E-Print Network [OSTI]

    Nirody, Jasmine A; Oster, George

    2015-01-01

    Recent experiments on the bacterial flagellar motor have shown that the structure of this nanomachine, which drives locomotion in a wide range of bacterial species, is more dynamic than previously believed. Specifically, the number of active torque-generating units (stators) was shown to vary across applied loads. This finding invalidates the experimental evidence reporting that limiting (zero-torque) speed is independent of the number of active stators. Here, we propose that, contrary to previous assumptions, the maximum speed of the motor is not universal, but rather increases as additional torque-generators are recruited. This result arises from our assumption that stators disengage from the motor for a significant portion of their mechanochemical cycles at low loads. We show that this assumption is consistent with current experimental evidence and consolidate our predictions with arguments that a processive motor must have a high duty ratio at high loads.

  10. The Limiting Speed of the Bacterial Flagellar Motor

    E-Print Network [OSTI]

    Jasmine A. Nirody; Richard M. Berry; George Oster

    2015-05-22

    Recent experiments on the bacterial flagellar motor have shown that the structure of this nanomachine, which drives locomotion in a wide range of bacterial species, is more dynamic than previously believed. Specifically, the number of active torque-generating units (stators) was shown to vary across applied loads. This finding invalidates the experimental evidence reporting that limiting (zero-torque) speed is independent of the number of active stators. Here, we propose that, contrary to previous assumptions, the maximum speed of the motor is not universal, but rather increases as additional torque-generators are recruited. This result arises from our assumption that stators disengage from the motor for a significant portion of their mechanochemical cycles at low loads. We show that this assumption is consistent with current experimental evidence and consolidate our predictions with arguments that a processive motor must have a high duty ratio at high loads.

  11. First operational experience with the CMS Run Control System

    E-Print Network [OSTI]

    Bauer, Gerry P.

    The Run Control System of the Compact Muon Solenoid (CMS) experiment at CERN's new Large Hadron Collider (LHC) controls the sub-detector and central data acquisition systems and the high-level trigger farm of the experiment. ...

  12. The run IIb trigger upgrade for the DO experiment

    E-Print Network [OSTI]

    Wilson, Graham Wallace; Padley, P.; Olsen, J.; Narain, M.; Mitrevski, J.; Le Du, P.; Laurens, P.; Johnson, M.; Johns, K.; Hirosky, R.; Hildreth, M.

    2004-06-01

    The increase in instantaneous luminosity anticipated in Run IIb of the Tevatron collider at Fermilab requires increased background rejection capabilities from the trigger system of the DO detector. A set of upgrades is under way to improve...

  13. Analysis of Long-Running Replicated Systems Sriram Ramabhadran

    E-Print Network [OSTI]

    Pasquale, Joseph

    Analysis of Long-Running Replicated Systems Sriram Ramabhadran Dept. of Computer Science & Engineering University of California, San Diego sriram@cs.ucsd.edu Joseph Pasquale Dept. of Computer Science

  14. SRS Recovery Act Completes Major Lower Three Runs Project Cleanup

    Office of Environmental Management (EM)

    Pope, "The EPA is pleased with the cleanup of hot spots of contaminated soil and sediment along Lower Three Runs. EPA worked closely with the Department of Energy, South...

  15. Design of running-man, a bipedal robot

    E-Print Network [OSTI]

    Chen, Jin

    2011-01-01

    are the “muscles” of the robot. Two types of RC servo motorsforce at the end. This robot is based on a previous robot ofSpecifications of Running Man robot prototype Hip range of

  16. Estimation of run times in a freight rail transportation network

    E-Print Network [OSTI]

    Bonsra, Kunal (Kunal Baldev)

    2012-01-01

    The objective of this thesis is to improve the accuracy of individual freight train run time predictions defined as the time between departure from an origin node to arrival at a destination node not including yard time. ...

  17. d Onion River Review d river run by

    E-Print Network [OSTI]

    Weaver, Adam Lee

    d Onion River Review d 2009 d river run by Eireann Aspell Jamie Gorton Heidi Lynch Matt Serron #12 lives. #12;BLANK Editors' Note There were portents hinting at the Onion River Review's future as early

  18. New Carlsbad Field Office Manager Hits the Ground Running

    Broader source: Energy.gov [DOE]

    CARLSBAD, N.M. – If you want to catch up with Carlsbad Field Office (CBFO) Manager Joe Franco, you may have to run. In fact, his first weeks in his new job have looked like a sprint.

  19. Running Head: EMOTION AND AGING Emotion and Aging

    E-Print Network [OSTI]

    Mather, Mara

    Running Head: EMOTION AND AGING Emotion and Aging Mara Mather, M., & Ponzio, A. (in press). Emotion and aging. In L. Feldman Barrett, M. All of these basic mechanisms and contextual factors change in normal aging

  20. Comparison of a TRAC calculation to the data from LSTF run SB-CL-05

    SciTech Connect (OSTI)

    Motley, F.; Schultz, R.

    1986-01-01

    Run SB-CL-05 is a 5% break in the side of the cold leg. The test results show that the core was uncovered briefly and that the rods overheated at certain core locations. Liquid holdup on the upflow side of the steam generator tubes was observed. When the loop seal cleared, the core refilled and the rods cooled. The TRAC results are in reasonable agreement with the test data, meaning that TRAC correctly predicted the major trends and phenomena. TRAC predicted the core uncovery, the resulting rod heatup, and the liquid holdup on the upflow side of the steam generator tubes correctly. The clearing of the loop seal allowed core recovery and cooled the overheated rods just as it had in the data, but TRAC predicted its occurrence 20 s late. The experimental and TRAC analysis results of run SB-CL-05 are similar to those for Semiscale Run S-UT-8. In both runs there was core uncovery, rod overheating, and steam generator liquid holdup. These results confirm scaling of these phenomena from Semiscale (1/1650) to LSTF (1/48).

  1. Negative running of the spectral index, hemispherical asymmetry and the consistency of Planck with large r

    SciTech Connect (OSTI)

    McDonald, John

    2014-11-01

    Planck favours a negative running of the spectral index, with the likelihood being dominated by low multipoles l ?< 50 and no preference for running at higher l. A negative spectral index is also necessary for the 2- Planck upper bound on the tensor-to-scalar ratio r to be consistent with values significantly larger than 0.1. Planck has also observed a hemispherical asymmetry of the CMB power spectrum, again mostly at low multipoles. Here we consider whether the physics responsible for the hemispherical asymmetry could also account for the negative running of the spectral index and the consistency of Planck with a large value of r. A negative running of the spectral index can be generated if the hemispherical asymmetry is due to a scale- and space-dependent modulation which suppresses the CMB power spectrum at low multipoles. We show that the observed hemispherical asymmetry at low l can be generated while satisfying constraints on the asymmetry at higher l and generating a negative spectral index of the right magnitude to account for the Planck observation and to allow Planck to be consistent with a large value of r.

  2. A Look Inside the Detroit Auto Show | Department of Energy

    Energy Savers [EERE]

    speed of 140 mph, the new 918 RSR combines the power of a 563-horsepower V-8 engine and a dual inertial flywheel system to produce a total 767-horsepower. On the efficiency side, a...

  3. Performance Analysis of Air-Source Variable Speed Heat Pumps...

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

    Performance Analysis of Air-Source Variable Speed Heat Pumps and Various Electric Water Heating Options Performance Analysis of Air-Source Variable Speed Heat Pumps and Various...

  4. Reduction of Emissions from a High Speed Ferry | Department of...

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

    Emissions from a High Speed Ferry Reduction of Emissions from a High Speed Ferry 2003 DEER Conference Presentation: West Virginia University 2003deerthompson.pdf More Documents &...

  5. A Multivariate Analysis of Freeway Speed and Headway Data 

    E-Print Network [OSTI]

    Zou, Yajie

    2013-11-11

    The knowledge of speed and headway distributions is essential in microscopic traffic flow studies because speed and headway are both fundamental microscopic characteristics of traffic flow. For microscopic ...

  6. Advanced Variable Speed Air-Source Integrated Heat Pump 2013...

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

    Advanced Variable Speed Air-Source Integrated Heat Pump 2013 Peer Review Advanced Variable Speed Air-Source Integrated Heat Pump 2013 Peer Review Emerging Technologies Project for...

  7. Residential Cold Climate Heat Pump with Variable-Speed Technology...

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

    Residential Cold Climate Heat Pump with Variable-Speed Technology Residential Cold Climate Heat Pump with Variable-Speed Technology Purdue prototype system Purdue prototype system...

  8. Energy Department Announces $10 Million to Speed Enhanced Geothermal...

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

    to Speed Enhanced Geothermal Systems into the Market Energy Department Announces 10 Million to Speed Enhanced Geothermal Systems into the Market February 24, 2014 - 11:46am...

  9. LHCb : LHCbVELO: Performance and Radiation Damage in LHC Run I and Preparationfor Run II

    E-Print Network [OSTI]

    Szumlak, Tomasz

    2015-01-01

    LHCb is a dedicated experiment to study New Physics in the decays of heavy hadrons at the Large Hadron Collider (LHC) at CERN. Heavy hadrons are identified through their flight distance in the Vertex Locator (VELO). The VELO comprises 42 modules made of two n+-on-n 300 um thick half-disc silicon sensors with R-measuring and Phi-measuring micro-strips. In order to allow retracting the detector, the VELO is installed as two movable halves containing 21 modules each. The detectors are operated in a secondary vacuum and are cooled by a bi-phase CO2 cooling system. During data taking in LHC Run 1 the LHCb VELO has operated with an extremely high efficiency and excellent performance. The track finding efficiency is typically greater than 98%. An impact parameter resolution of less than 35 um is achieved for particles with transverse momentum greater than 1 GeV/c. An overview of all important performance parameters will be given. The VELO sensors have received a large and non-uniform radiation dose of up to 1.2 x 10...

  10. Wind speed forecasting at different time scales: a non parametric approach

    E-Print Network [OSTI]

    D'Amico, Guglielmo; Prattico, Flavio

    2013-01-01

    The prediction of wind speed is one of the most important aspects when dealing with renewable energy. In this paper we show a new nonparametric model, based on semi-Markov chains, to predict wind speed. Particularly we use an indexed semi-Markov model, that reproduces accurately the statistical behavior of wind speed, to forecast wind speed one step ahead for different time scales and for very long time horizon maintaining the goodness of prediction. In order to check the main features of the model we show, as indicator of goodness, the root mean square error between real data and predicted ones and we compare our forecasting results with those of a persistence model.

  11. Smaller Footprint Drilling System for Deep and Hard Rock Environments; Feasibility of Ultra-High-Speed Diamond Drilling

    SciTech Connect (OSTI)

    TerraTek, A Schlumberger Company

    2008-12-31

    The two phase program addresses long-term developments in deep well and hard rock drilling. TerraTek believes that significant improvements in drilling deep hard rock will be obtained by applying ultra-high rotational speeds (greater than 10,000 rpm). The work includes a feasibility of concept research effort aimed at development that will ultimately result in the ability to reliably drill 'faster and deeper' possibly with smaller, more mobile rigs. The principle focus is on demonstration testing of diamond bits rotating at speeds in excess of 10,000 rpm to achieve high rate of penetration (ROP) rock cutting with substantially lower inputs of energy and loads. The significance of the 'ultra-high rotary speed drilling system' is the ability to drill into rock at very low weights on bit and possibly lower energy levels. The drilling and coring industry today does not practice this technology. The highest rotary speed systems in oil field and mining drilling and coring today run less than 10,000 rpm - usually well below 5,000 rpm. This document provides the progress through two phases of the program entitled 'Smaller Footprint Drilling System for Deep and Hard Rock Environments: Feasibility of Ultra-High-Speed Diamond Drilling' for the period starting 30 June 2003 and concluding 31 March 2009. The accomplishments of Phases 1 and 2 are summarized as follows: (1) TerraTek reviewed applicable literature and documentation and convened a project kick-off meeting with Industry Advisors in attendance (see Black and Judzis); (2) TerraTek designed and planned Phase I bench scale experiments (See Black and Judzis). Improvements were made to the loading mechanism and the rotational speed monitoring instrumentation. New drill bit designs were developed to provided a more consistent product with consistent performance. A test matrix for the final core bit testing program was completed; (3) TerraTek concluded small-scale cutting performance tests; (4) Analysis of Phase 1 data indicated that there is decreased specific energy as the rotational speed increases; (5) Technology transfer, as part of Phase 1, was accomplished with technical presentations to the industry (see Judzis, Boucher, McCammon, and Black); (6) TerraTek prepared a design concept for the high speed drilling test stand, which was planned around the proposed high speed mud motor concept. Alternative drives for the test stand were explored; a high speed hydraulic motor concept was finally used; (7) The high speed system was modified to accommodate larger drill bits than originally planned; (8) Prototype mud turbine motors and the high speed test stand were used to drive the drill bits at high speed; (9) Three different rock types were used during the testing: Sierra White granite, Crab Orchard sandstone, and Colton sandstone. The drill bits used included diamond impregnated bits, a polycrystalline diamond compact (PDC) bit, a thermally stable PDC (TSP) bit, and a hybrid TSP and natural diamond bit; and (10) The drill bits were run at rotary speeds up to 5500 rpm and weight on bit (WOB) to 8000 lbf. During Phase 2, the ROP as measured in depth of cut per bit revolution generally increased with increased WOB. The performance was mixed with increased rotary speed, with the depth cut with the impregnated drill bit generally increasing and the TSP and hybrid TSP drill bits generally decreasing. The ROP in ft/hr generally increased with all bits with increased WOB and rotary speed. The mechanical specific energy generally improved (decreased) with increased WOB and was mixed with increased rotary speed.

  12. LIDAR Wind Speed Measurements of Evolving Wind Fields

    SciTech Connect (OSTI)

    Simley, E.; Pao, L. Y.

    2012-07-01

    Light Detection and Ranging (LIDAR) systems are able to measure the speed of incoming wind before it interacts with a wind turbine rotor. These preview wind measurements can be used in feedforward control systems designed to reduce turbine loads. However, the degree to which such preview-based control techniques can reduce loads by reacting to turbulence depends on how accurately the incoming wind field can be measured. Past studies have assumed Taylor's frozen turbulence hypothesis, which implies that turbulence remains unchanged as it advects downwind at the mean wind speed. With Taylor's hypothesis applied, the only source of wind speed measurement error is distortion caused by the LIDAR. This study introduces wind evolution, characterized by the longitudinal coherence of the wind, to LIDAR measurement simulations to create a more realistic measurement model. A simple model of wind evolution is applied to a frozen wind field used in previous studies to investigate the effects of varying the intensity of wind evolution. LIDAR measurements are also evaluated with a large eddy simulation of a stable boundary layer provided by the National Center for Atmospheric Research. Simulation results show the combined effects of LIDAR errors and wind evolution for realistic turbine-mounted LIDAR measurement scenarios.

  13. Measure Guideline. Replacing Single-Speed Pool Pumps with Variable Speed Pumps for Energy Savings

    SciTech Connect (OSTI)

    Hunt, A.; Easley, S.

    2012-05-01

    This measure guideline evaluates potential energy savings by replacing traditional single-speed pool pumps with variable speed pool pumps, and provides a basic cost comparison between continued uses of traditional pumps verses new pumps. A simple step-by-step process for inspecting the pool area and installing a new pool pump follows.

  14. Measure Guideline: Replacing Single-Speed Pool Pumps with Variable Speed Pumps for Energy Savings

    SciTech Connect (OSTI)

    Hunt, A.; Easley, S.

    2012-05-01

    The report evaluates potential energy savings by replacing traditional single-speed pool pumps with variable speed pool pumps, and provide a basic cost comparison between continued uses of traditional pumps verses new pumps. A simple step-by-step process for inspecting the pool area and installing a new pool pump follows.

  15. Laminar flame speeds of moist syngas mixtures

    SciTech Connect (OSTI)

    Das, Apurba K. [Department of Mechanical and Aerospace Engineering, Case Western Reserve University, Cleveland, OH 44106 (United States); Kumar, Kamal; Sung, Chih-Jen [Department of Mechanical Engineering, University of Connecticut, Storrs, CT 06269 (United States)

    2011-02-15

    This work experimentally investigates the effect of the presence of water vapor on the laminar flame speeds of moist syngas/air mixtures using the counterflow twin-flame configuration. The experimental results presented here are for fuel lean syngas mixtures with molar percentage of hydrogen in the hydrogen and carbon monoxide mixture varying from 5% to 100%, for an unburned mixture temperature of 323 K, and under atmospheric pressure. At a given equivalence ratio, the effect of varying amount of water vapor addition on the measured laminar flame speed is demonstrated. The experimental laminar flame speeds are also compared with computed values using chemical kinetic mechanisms reported in the literature. It is found that laminar flame speed varies non-monotonically with addition of water for the carbon monoxide rich mixtures. It first increases with increasing amount of water addition, reaches a maximum value, and then decreases. An integrated reaction path analysis is further conducted to understand the controlling mechanism responsible for the non-monotonic variation in laminar flame speed due to water addition. On the other hand, for higher values of H{sub 2}/CO ratio the laminar flame speed monotonically decreases with increasing water addition. It is shown that the competition between the chemical and thermal effects of water addition leads to the observed response. Furthermore, reaction rate sensitivity analysis as well as binary diffusion coefficient sensitivity analysis are conducted to identify the possible sources of discrepancy between the experimental and predicted values. The sensitivity results indicate that the reaction rate constant of H{sub 2}+OH = H{sub 2}O+H is worth revisiting and refinement of binary diffusion coefficient data of N{sub 2}-H{sub 2}O, N{sub 2}-H{sub 2}, and H{sub 2}-H{sub 2}O pairs can be considered. (author)

  16. Well casing hanger and packoff running and retrieval tool

    SciTech Connect (OSTI)

    Pollock, J.R.; Valka, W.A.

    1992-04-21

    This patent describes a well tool for running a casing hanger and a packoff into, and retrieving a packoff from, a subsea wellhead. It comprises a tubular body including means to releasably connect a packoff to the body for running the packoff into a subsea wellhead; means to releasably connect a packoff to the body for retrieving the packoff from a subsea wellhead; means to relocate the packoff running means and the packoff retrieving means between their functional and non-functional positions; means to releasably connect a casing hanger to the body for running the hanger into a subsea wellhead; a tubular mandrel surrounded by and rotatable with respect to the body; means surrounding the mandrel for moving the casing hanger connection means into functional position; first anti-rotation means preventing relative rotation between the body and the means for moving the casing hanger connection means; second anti-rotation means for preventing relative rotation between connection means; second anti-rotation means for preventing relative rotation between the body and a casing hanger connected thereto: and means for connecting the mandrel to a pipe string for running the tool into a subsea wellhead.

  17. The River Runs Dry: Examining Water Shortages in the Yellow River Basin

    E-Print Network [OSTI]

    Zusman, Eric

    2000-01-01

    in Transition Zusman/The River Runs Dry Wang Liurong.YRCC’sin Transition Zusman/The River Runs Dry not just importantin Transition Zusman/The River Runs Dry emerging market

  18. Still the Wild River Runs: Congress, the Sierra Club and the Fight to Save Grand Canyon

    E-Print Network [OSTI]

    Miller, Ryder W.

    2003-01-01

    Review: Still the Wild River Runs: Congress, the Sierra ClubE. Pearson. Still the Wild River Runs: Congress, the Sierrarecounted in Still the Wild River Runs by Byron E. Pearson,

  19. A Test to Verify the Speed Change of Light in the Gravitational Field of the Earth

    E-Print Network [OSTI]

    Mei Xiaochun

    2006-12-03

    Based on the Schwarzschild solution of the Einstein equation of gravitational field, it is proved that the speed of light speed would change and isotropy of light speed would be violated in gravitational field with spherical symmetry. On the surface of the earth, the speed of light vertical to the surface is 0.2m/s less than that parallel to the surface. It is suggested to use the method of the Michelson Morley interference to verify the change of light speed and the violation of isotropy in the gravitational field of the earth. In the proposed experiment, one arm of interferometer is vertical to the earth surface while another is parallel to the surface. When two arms are turned over 90 degree, the shift of about 0.07 interference stripe would be caused which can be observed directly. So this experiment can be considered as a new verification for general relativity in the gravitational field with spherical symmetry. If the experiment shows that gravitation would change the speed of light and violate the isotropy of light speed, the result would cause great effects on foundational physics, astrophysics and cosmolo

  20. Comments on Injector Proton Beam Study in Run 2014

    SciTech Connect (OSTI)

    Zhang, S. Y.

    2014-09-15

    During the entire period of injector proton study in run 2014, it seems that the beam transverse emittance out of Booster is larger than that in run 2013. The emittance measured at the BtA transfer line and also the transmission from Booster late to AGS late are presented for this argument. In addition to this problem, it seems that the multiturn Booster injection, which defines the transverse emittance, needs more attention. Moreover, for high intensity operations, the space charge effect may be already relevant in RHIC polarized proton runs. With the RHIC proton intensity improvement in the next several years, higher Booster input intensity is needed, therefore, the space charge effect at the Booster injection and early ramp may become a new limiting factor.

  1. 2013 CEF RUN - PHASE 1 DATA ANALYSIS AND MODEL VALIDATION

    SciTech Connect (OSTI)

    Choi, A.

    2014-05-08

    Phase 1 of the 2013 Cold cap Evaluation Furnace (CEF) test was completed on June 3, 2013 after a 5-day round-the-clock feeding and pouring operation. The main goal of the test was to characterize the CEF off-gas produced from a nitric-formic acid flowsheet feed and confirm whether the CEF platform is capable of producing scalable off-gas data necessary for the revision of the DWPF melter off-gas flammability model; the revised model will be used to define new safety controls on the key operating parameters for the nitric-glycolic acid flowsheet feeds including total organic carbon (TOC). Whether the CEF off-gas data were scalable for the purpose of predicting the potential flammability of the DWPF melter exhaust was determined by comparing the predicted H{sub 2} and CO concentrations using the current DWPF melter off-gas flammability model to those measured during Phase 1; data were deemed scalable if the calculated fractional conversions of TOC-to-H{sub 2} and TOC-to-CO at varying melter vapor space temperatures were found to trend and further bound the respective measured data with some margin of safety. Being scalable thus means that for a given feed chemistry the instantaneous flow rates of H{sub 2} and CO in the DWPF melter exhaust can be estimated with some degree of conservatism by multiplying those of the respective gases from a pilot-scale melter by the feed rate ratio. This report documents the results of the Phase 1 data analysis and the necessary calculations performed to determine the scalability of the CEF off-gas data. A total of six steady state runs were made during Phase 1 under non-bubbled conditions by varying the CEF vapor space temperature from near 700 to below 300°C, as measured in a thermowell (T{sub tw}). At each steady state temperature, the off-gas composition was monitored continuously for two hours using MS, GC, and FTIR in order to track mainly H{sub 2}, CO, CO{sub 2}, NO{sub x}, and organic gases such as CH{sub 4}. The standard deviation of the average vapor space temperature during each steady state ranged from 2 to 6°C; however, those of the measured off-gas data were much larger due to the inherent cold cap instabilities in the slurry-fed melters. In order to predict the off-gas composition at the sampling location downstream of the film cooler, the measured feed composition was charge-reconciled and input into the DWPF melter off-gas flammability model, which was then run under the conditions for each of the six Phase 1 steady states. In doing so, it was necessary to perform an overall heat/mass balance calculation from the melter to the Off-Gas Condensate Tank (OGCT) in order to estimate the rate of air inleakage as well as the true gas temperature in the CEF vapor space (T{sub gas}) during each steady state by taking into account the effects of thermal radiation on the measured temperature (T{sub tw}). The results of Phase 1 data analysis and subsequent model runs showed that the predicted concentrations of H{sub 2} and CO by the DWPF model correctly trended and further bounded the respective measured data in the CEF off-gas by over predicting the TOC-to-H{sub 2} and TOC-to-CO conversion ratios by a factor of 2 to 5; an exception was the 7X over prediction of the latter at T{sub gas} = 371°C but the impact of CO on the off-gas flammability potential is only minor compared to that of H{sub 2}. More importantly, the seemingly-excessive over prediction of the TOC-to-H{sub 2} conversion by a factor of 4 or higher at T{sub gas} < ~350°C was attributed to the conservative antifoam decomposition scheme added recently to the model and therefore is considered a modeling issue and not a design issue. At T{sub gas} > ~350°C, the predicted TOC-to-H{sub 2} conversions were closer to but still higher than the measured data by a factor of 2, which may be regarded as adequate from the safety margin standpoint. The heat/mass balance calculations also showed that the correlation between T{sub tw} and T{sub gas} in the CEF vapor space was close to that of the ½ scale SGM, whose data were ta

  2. At-Speed Path Delay Test 

    E-Print Network [OSTI]

    Chakraborty, Swati

    2015-04-27

    This research describes an approach to test metastability of flip-flops with help of multiple at-speed capture cycles during delay test. K longest paths per flip-flop test patterns are generated, such that a long path on one clock cycle feeds a long...

  3. Energy Savings of Variable Speed Motors 

    E-Print Network [OSTI]

    Fishel, F. D.

    1979-01-01

    speed system. The actual values used in the table above are an average of the efficiency referenced in the Bibli ography. = (% design flow)(% system head)(% Epd)(% E dd ) 4. HP p.u. (% E )(% E ) pl dl where E dd = .9 and E pd = .78 at design...

  4. Detour : Los Angeles River Speed Cinema

    E-Print Network [OSTI]

    Lee, Weifeng Victoria

    2010-01-01

    We live in the culture of speed; everything is on its way to become a faster version of itself tomorrow if it is not already there today. Automobile and cinema are two inventions at the turn of the 20th Century that brought ...

  5. Predicting Wave Glider Speed from Environmental Measurements

    E-Print Network [OSTI]

    Smith, Ryan N.

    . This vehicle produces forward motion by harvesting abundant natural energy from ocean waves, and providesPredicting Wave Glider Speed from Environmental Measurements Ryan N. Smith, Jnaneshwar Das, Graham of Technology, Brisbane, QLD 4000, Australia Email: ryan.smith@qut.edu.au Robotic Embedded Systems Laboratory

  6. THE MMRI CONNECTION Feeds and Speeds Optimization

    E-Print Network [OSTI]

    Bone, Gary

    Machines First Reduce Cycle Times by: Improving Tool Performance Using Advanced Coatings Selecting Cutting Tools to Fully Utilize Machine Spindle RPM Select Speeds to Avoid Chatter and Vibration and Increase Depth of Cut ToolWear #12;HOW TO WORK WITH THE MMRI The MMRI supports research projects

  7. Analysis of failed ramps during the RHIC FY09 run

    SciTech Connect (OSTI)

    Minty, M.

    2014-08-15

    The Relativistic Heavy Ion Collider (RHIC) is a versatile accelerator that supports operation with polarized protons of up to 250 GeV and ions with up to 100 GeV/nucleon. During any running period, various operating scenarios with different particle species, beam energies or accelerator optics are commissioned. In this report the beam commissioning periods for establishing full energy beams (ramp development periods) from the FY09 run are summarized and, for the purpose of motivating further developments, we analyze the reasons for all failed ramps.

  8. Fast Bunch Integrators at Fermilab During Run II

    SciTech Connect (OSTI)

    Meyer, Thomas; Briegel, Charles; Fellenz, Brian; Vogel, Greg; /Fermilab

    2011-07-13

    The Fast Bunch Integrator is a bunch intensity monitor designed around the measurements made from Resistive Wall Current Monitors. During the Run II period these were used in both Tevatron and Main Injector for single and multiple bunch intensity measurements. This paper presents an overview of the design and use of these systems during this period. During the Run II era the Fast Bunch integrators have found a multitude of uses. From antiproton transfers to muti-bunch beam coalescing, Main Injector transfers to halo scraping and lifetime measurements, the Fast Bunch Integrators have proved invaluable in the creation and maintenance of Colliding Beams stores at Fermilab.

  9. The PDF4LHC report on PDFs and LHC data: results from Run I and preparation for Run II

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

    Rojo, Juan; Accardi, Alberto; Ball, Richard D.; Cooper-Sarkar, Amanda; de Roeck, Albert; Farry, Stephen; Ferrando, James; Forte, Stefano; Gao, Jun; Harland-Lang, Lucian; et al

    2015-09-15

    The accurate determination of Parton Distribution Functions (PDFs) of the proton is an essential ingredient of the Large Hadron Collider (LHC) program. PDF uncertainties impact a wide range of processes, from Higgs boson characterization and precision Standard Model measurements to New Physics searches. A major recent development in modern PDF analyses has been to exploit the wealth of new information contained in precision measurements from the LHC Run I, as well as progress in tools and methods to include these data in PDF fits. In this report we summarize the information that PDF-sensitive measurements at the LHC have provided somore »far, and review the prospects for further constraining PDFs with data from the recently started Run II. This document aims to provide useful input to the LHC collaborations to prioritize their PDF-sensitive measurements at Run II, as well as a comprehensive reference for the PDF-fitting collaborations.« less

  10. Migration Patterns of Juvenile Winter-run-sized Chinook Salmon (Oncorhynchus tshawytscha) through the Sacramento–San Joaquin Delta

    E-Print Network [OSTI]

    2013-01-01

    Habitat; Sacramento River Winter-Run Chinook Salmon. VolumeStatus of Sacramento River Winter-run Chinook Salmon. Volumeplasticity in Sacramento River winter-run chinook salmon (

  11. Running head: Biopsychological Aspects of Motivation Biopsychological Aspects of Motivation

    E-Print Network [OSTI]

    Schultheiss, Oliver C.

    Running head: Biopsychological Aspects of Motivation Biopsychological Aspects of Motivation Oliver, O. C., & Wirth, M. M. (2008). Biopsychological aspects of motivation. In J. Heckhausen & H. Heckhausen (Eds.), Motivation and action (2 ed., pp. 247-271). New York: Cambridge University Press. #12

  12. Running Head: TESTOSTERONE AND POWER Testosterone and power

    E-Print Network [OSTI]

    Schultheiss, Oliver C.

    Running Head: TESTOSTERONE AND POWER Testosterone and power Steven J. Stanton and Oliver C. Schultheiss University of Michigan, Ann Arbor, MI, USA To appear in: K. Dowding (Ed.), Encyclopedia of power-647-9440, email: stantons@umich.edu #12;Testosterone and power 2 Across many studies in humans, two functional

  13. Recto Running Head 1 Available Potential Energy and Exergy in

    E-Print Network [OSTI]

    Tailleux, Remi

    Recto Running Head 1 Available Potential Energy and Exergy in Stratified Fluids R´emi Tailleux in classi- cal thermodynamics, however, usually relies on the concept of exergy, and is usually measured/eddy decompositions, APE in incompressible fluids, APE and irreversible turbulent mixing, and the role of mechanical

  14. Power Systems Development Facility Gasification Test Run TC11

    SciTech Connect (OSTI)

    Southern Company Services

    2003-04-30

    This report discusses Test Campaign TC11 of the Kellogg Brown & Root, Inc. (KBR) Transport Gasifier train with a Siemens Westinghouse Power Corporation (Siemens Westinghouse) particle filter system at the Power Systems Development Facility (PSDF) located in Wilsonville, Alabama. The Transport Gasifier is an advanced circulating fluidized-bed gasifier designed to operate as either a combustor or a gasifier in air- or oxygen-blown mode of operation using a particulate control device (PCD). Test run TC11 began on April 7, 2003, with startup of the main air compressor and the lighting of the gasifier start-up burner. The Transport Gasifier operated until April 18, 2003, when a gasifier upset forced the termination of the test run. Over the course of the entire test run, gasifier temperatures varied between 1,650 and 1,800 F at pressures from 160 to 200 psig during air-blown operations and around 135 psig during enriched-air operations. Due to a restriction in the oxygen-fed lower mixing zone (LMZ), the majority of the test run featured air-blown operations.

  15. Zero Capacity Region of Multidimensional Run Length Constraints

    E-Print Network [OSTI]

    Zeger, Kenneth

    there are at least consecutive zeros. An -dimensional pattern of zeros and ones arranged in an hyper For integers and satisfying , a binary sequence is said to satisfy a one-dimensional run length constraint. For , the -dimensional -constrained capacity is defined as where denotes the number of -dimensional binary rectangular

  16. Models at Run-time for Sustaining User Interface Plasticity

    E-Print Network [OSTI]

    Models at Run-time for Sustaining User Interface Plasticity Jean-Sébastien Sottet1 Gaëlle Calvary1, Environment>) while preserving usability. This capacity of UIs is called Plasticity. In a forward engineering) to code. It is now well understood that plasticity may impact UIs at any level of abstraction. This calls

  17. Running A Conference Justin Zobel # Alistair Mo#at +

    E-Print Network [OSTI]

    Zobel, Justin

    Running A Conference Justin Zobel # Alistair Mo#at + Last updated August 2003 1 Introduction Much of the research in computer science is published in conferences, often complex a#airs in­ cluding paper presentations, tutorials, workshops, invited speakers, and tours and entertainment. Even a small conference has

  18. Future Choices 1 Running head: EFFECT OF FUTURE CHOICES

    E-Print Network [OSTI]

    Future Choices 1 Running head: EFFECT OF FUTURE CHOICES The Effect of Highlighting Future Choices on Current Preferences Uzma Khan Carnegie Mellon University Ravi Dhar Yale School of Management #12;Future future choices rather than as an isolated choice. Our finding contrasts with the general wisdom

  19. PRO: CLAS Comprehensive Vitae Run Date: 4/4/2014

    E-Print Network [OSTI]

    in groundwater; Origins of isotopes and major and trace elements in formation waters (deep basin/oil & gas field: Oxford University Press, 1998. Macpherson, G. L., and M. A. Townsend. "Chapter 5, Water chemistry Association of GeoChemistry, June 2013 #12;Gwendolyn L. Macpherson 2 PRO: CLAS Comprehensive Vitae Run Date: 4

  20. D0 status and first results from Run II

    SciTech Connect (OSTI)

    Aurelio Juste

    2004-01-12

    In order to fully exploit the physics potential of the Tevatron Run 2, the D0 detector has been upgraded. Having nearly completed the commissioning phase, the D0 detector is starting to produce its first physics results. An overview of the status of the main subdetectors involved in the upgrade is given, followed by some examples of preliminary physics results already emerging.

  1. Evidence for Spring Loaded Inverted Pendulum Running in a Hexapod

    E-Print Network [OSTI]

    Saranlý, Uluç

    Evidence for Spring Loaded Inverted Pendulum Running in a Hexapod Robot Richard Altendorfer, Uluc recently designed compliant leg hexapod robot, RHex. Experimentally measured RHex center of mass for hierarchical control of hexapod robots. 1. Introduction We have recently reported on a prototype robot

  2. The long-run evolution of energy prices

    E-Print Network [OSTI]

    Pindyck, Robert S.

    1999-01-01

    I examine the long-run behavior of oil, coal, and natural gas prices, using up to 127 years of data, and address the following questions: What does over a century of data tell us about the stochastic dynamics of price ...

  3. Infinite Runs in Weighted Timed Automata with Energy Constraints

    E-Print Network [OSTI]

    Doyen, Laurent

    Infinite Runs in Weighted Timed Automata with Energy Constraints Patricia Bouyer1 , Uli Fahrenberg2 Cachan, France {bouyer,markey}@lsv.ens-cachan.fr 2 Dept. of Computer Science, Aalborg University, Denmark and negative weights on transitions and locations, corresponding to the production and consumption of some

  4. d Onion River Review d river run by

    E-Print Network [OSTI]

    Weaver, Adam Lee

    d Onion River Review d 2013 d river run by Alex Dugas Sarah Fraser Bryan Hickey Nick Lemon Diana Marchessault Mickey O'Neill Amy Wilson #12;#12;Editors' Note For this edition of the Onion River Review, we are finally able to present to you this year's edition of the Onion River Review: our love child, our shining

  5. Speed of the Earth : illusion and experience of speed and scale

    E-Print Network [OSTI]

    Benoff, Mitchell

    1993-01-01

    The Speed of the Earth is a proposed sculpture dealing with light as pure experience within the context of short-lived rapid movement and large scale horizontal orientation within the environment. This will be accomplished ...

  6. Running Spectral Index as a Probe of Physics at High Scales

    E-Print Network [OSTI]

    G. Ballesteros; J. A. Casas; J. R. Espinosa

    2006-03-23

    The WMAP results on the scalar spectral index n and its running with scale, though preliminary, open a very interesting window to physics at very high energies. We address the problem of finding inflaton potentials well motivated by particle physics which can accomodate WMAP data. We make a model independent analysis of a large class of models: those with flat tree-level potential lifted by radiative corrections, which cause the slow rolling of the inflaton and the running of n. This includes typical hybrid inflation models. In the small-coupling regime the predictions for the size and running of n are remarkably neat, e.g. -dn/dln k=(n-1)^2 price of having a small number of e-folds, Ne. We also examine the effect of mass thresholds crossed during inflation. Finally, we show that the presence of non-renormalizable operators for the inflaton, suppressed by a mass scale above the inflationary range, is able to give both dn/dln k ~ O(-0.05) and Ne ~ 50.

  7. Installing and Using VMWare View Client for Android This document describes how to get up and running with View if your device runs an Android

    E-Print Network [OSTI]

    Neirotti, Juan Pablo

    1 Installing and Using VMWare View Client for Android This document describes how to get up and running with View if your device runs an Android operating system. Instructions may differ slightly from

  8. In running, kinetic and potential energy removed from the body during the first half of a running step is transiently stored

    E-Print Network [OSTI]

    Geyer, Hartmut

    stability. Kubow and Full (1999) investigated the stability of hexapod running in numerical simulation) found a lateral spring-mass stability for hexapod running on a conservative level where total mechanical

  9. High-speed massively parallel scanning

    DOE Patents [OSTI]

    Decker, Derek E. (Byron, CA)

    2010-07-06

    A new technique for recording a series of images of a high-speed event (such as, but not limited to: ballistics, explosives, laser induced changes in materials, etc.) is presented. Such technique(s) makes use of a lenslet array to take image picture elements (pixels) and concentrate light from each pixel into a spot that is much smaller than the pixel. This array of spots illuminates a detector region (e.g., film, as one embodiment) which is scanned transverse to the light, creating tracks of exposed regions. Each track is a time history of the light intensity for a single pixel. By appropriately configuring the array of concentrated spots with respect to the scanning direction of the detection material, different tracks fit between pixels and sufficient lengths are possible which can be of interest in several high-speed imaging applications.

  10. High-speed CARIBU and Other Behemoths

    Broader source: Energy.gov [DOE]

    Question: Why did the caribou cross the road, at 76 million miles per hour? Answer: To catch up with the chicken. Visitors to the Department of Energy’s Argonne National Laboratory won’t actually encounter any hyper-speed fowl, but they will see a high-speed CARIBU, which recently started to chase other exotic beasts in the particle zoo. Argonne’s CARIBU – which stands for Californium Rare Isotope Breeder Upgrade – is designed to study the inner part of an atom known as its nucleus. A nucleus consists of a collection of two types of particles, the proton, with a positive charge, and the neutron, with no charge, just mass. Those particles themselves are made of even smaller particles called quarks. CARIBU creates extra-heavy (neutron-rich) nuclei, and then spits them out of a nozzle for acceleration.

  11. Thermodynamics in variable speed of light theories

    SciTech Connect (OSTI)

    Racker, Juan [CONICET, Centro Atomico Bariloche, Avenida Bustillo 9500 (8400), San Carlos De Bariloche (Argentina); Facultad de Ciencias Astronomicas y Geofisicas, Universidad Nacional de La Plata, Paseo del Bosque S/N (1900), La Plata (Argentina); Sisterna, Pablo [Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Funes 3350 (7600), Mar del Plata (Argentina); Vucetich, Hector [Facultad de Ciencias Astronomicas y Geofisicas, Universidad Nacional de La Plata, Paseo del Bosque S/N (1900), La Plata (Argentina)

    2009-10-15

    The perfect fluid in the context of a covariant variable speed of light theory proposed by J. Magueijo is studied. On the one hand the modified first law of thermodynamics together with a recipe to obtain equations of state are obtained. On the other hand the Newtonian limit is performed to obtain the nonrelativistic hydrostatic equilibrium equation for the theory. The results obtained are used to determine the time variation of the radius of Mercury induced by the variability of the speed of light (c), and the scalar contribution to the luminosity of white dwarfs. Using a bound for the change of that radius and combining it with an upper limit for the variation of the fine structure constant, a bound on the time variation of c is set. An independent bound is obtained from luminosity estimates for Stein 2015B.

  12. Thermodynamics in variable speed of light theories

    E-Print Network [OSTI]

    Juan Racker; Pablo Sisterna; Hector Vucetich

    2009-11-30

    The perfect fluid in the context of a covariant variable speed of light theory proposed by J. Magueijo is studied. On the one hand the modified first law of thermodynamics together with a recipe to obtain equations of state are obtained. On the other hand the Newtonian limit is performed to obtain the nonrelativistic hydrostatic equilibrium equation for the theory. The results obtained are used to determine the time variation of the radius of Mercury induced by the variability of the speed of light ($c$), and the scalar contribution to the luminosity of white dwarfs. Using a bound for the change of that radius and combining it with an upper limit for the variation of the fine structure constant, a bound on the time variation of $c$ is set. An independent bound is obtained from luminosity estimates for Stein 2015B.

  13. Absorbing Phase Transitions and Dynamic Freezing in Running Active Matter Systems

    E-Print Network [OSTI]

    C. Reichhardt; C. J. Olson Reichhardt

    2014-06-12

    We examine a two-dimensional system of sterically repulsive interacting disks where each particle runs in a random direction. This system is equivalent to a run-and-tumble dynamics system in the limit where the run time is infinite. At low densities, we find a strongly fluctuating state composed of transient clusters. Above a critical density that is well below the density at which non-active particles would crystallize, the system can organize into a drifting quiescent or frozen state where the fluctuations are lost and large crystallites form surrounded by a small density of individual particles. Although all the particles are still moving, their paths form closed orbits. The average transient time to organize into the quiescent state diverges as a power law upon approaching the critical density from above. We compare our results to the random organization observed for periodically sheared systems that can undergo an absorbing transition from a fluctuating state to a dynamical non-fluctuating state. In the random organization studies, the system organizes to a state in which the particles no longer interact; in contrast, we find that the randomly running active matter organizes to a strongly interacting dynamically jammed state. We show that the transition to the frozen state is robust against a certain range of stochastic fluctuations. We also examine the effects of adding a small number of pinned particles to the system and find that the transition to the frozen state shifts to significantly lower densities and arises via the nucleation of faceted crystals centered at the obstacles.

  14. High-speed thermal cycling system and method of use

    DOE Patents [OSTI]

    Hansen, A.D.A.; Jaklevic, J.M.

    1996-04-16

    A thermal cycling system and method of use are described. The thermal cycling system is based on the circulation of temperature-controlled water directly to the underside of thin-walled polycarbonate plates. The water flow is selected from a manifold fed by pumps from heated reservoirs. The plate wells are loaded with typically 15-20 microliters of reagent mix for the PCR process. Heat transfer through the thin polycarbonate is sufficiently rapid that the contents reach thermal equilibrium with the water in less than 15 seconds. Complete PCR amplification runs of 40 three-step cycles have been performed in as little as 14.5 minutes, with the results showing substantially enhanced specificity compared to conventional technology requiring run times in excess of 100 minutes. The plate clamping station is designed to be amenable to robotic loading and unloading of the system. It includes a heated lid, thus eliminating the need for mineral oil overlay of the reactants. The present system includes three or more plate holder stations, fed from common reservoirs but operating with independent switching cycles. The system can be modularly expanded. 13 figs.

  15. High-speed thermal cycling system and method of use

    DOE Patents [OSTI]

    Hansen, Anthony D. A. (Berkely, CA); Jaklevic, Joseph M. (Lafayette, CA)

    1996-01-01

    A thermal cycling system and method of use are described. The thermal cycling system is based on the-circulation of temperature-controlled water directly to the underside of thin-walled polycarbonate microtiter plates. The water flow is selected from a manifold fed by pumps from heated reservoirs. The plate wells are loaded with typically 15-20 .mu.l of reagent mix for the PCR process. Heat transfer through the thin polycarbonate is sufficiently rapid that the contents reach thermal equilibrium with the water in less than 15 seconds. Complete PCR amplification runs of 40 three-step cycles have been performed in as little as 14.5 minutes, with the results showing substantially enhanced specificity compared to conventional technology requiring run times in excess of 100 minutes. The plate clamping station is designed to be amenable to robotic loading and unloading of the system. It includes a heated lid, thus eliminating the need for mineral oil overlay of the reactants. The present system includes three or more plate holder stations, fed from common reservoirs but operating with independent switching cycles. The system can be modularly expanded.

  16. Thermoacoustic tomography with variable sound speed

    E-Print Network [OSTI]

    Plamen Stefanov; Gunther Uhlmann

    2009-05-30

    We study the mathematical model of thermoacoustic tomography in media with a variable speed for a fixed time interval, greater than the diameter of the domain. In case of measurements on the whole boundary, we give an explicit solution in terms of a Neumann series expansion. We give necessary and sufficient conditions for uniqueness and stability when the measurements are taken on a part of the boundary.

  17. Thermoacoustic tomography with variable sound speed

    E-Print Network [OSTI]

    Stefanov, Plamen

    2009-01-01

    We study the mathematical model of thermoacoustic tomography in media with a variable speed for a fixed time interval, greater than the diameter of the domain. In case of measurements on the whole boundary, we give an explicit solution in terms of a Neumann series expansion. We give necessary and sufficient conditions for uniqueness and stability when the measurements are taken on a part of the boundary.

  18. Energy curable compositions having improved cure speeds

    DOE Patents [OSTI]

    Halm, Leo W. (Blaine, MN)

    1993-01-01

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

  19. VXS, A High Speed Cu Switch Fabric

    E-Print Network [OSTI]

    Kepner, Jeremy

    interconnects ­ PCI-X chip to chip interconnect ­ PCI-X mezzanines ­ Point to point intra-connects ­ Point 2001 2002 2003 2004 2005-10 · 8X speed improvement · Backwards compatible · VITA 1.5 2eSST/PCI-X VMEbus 2eSST/PCI-X VMEbus · PCI-X Mezzanine Cards · PMCX & PrPMCX · 64b/133MHz based · VITA 39 PMCXPMCX

  20. Data Capture Technique for High Speed Signaling

    DOE Patents [OSTI]

    Barrett, Wayne Melvin (Rochester, MN); Chen, Dong (Croton On Hudson, NY); Coteus, Paul William (Yorktwon Heights, NY); Gara, Alan Gene (Mount Kisco, NY); Jackson, Rory (Eastchester, NY); Kopcsay, Gerard Vincent (Yorktown Hieghts, NY); Nathanson, Ben Jesse (Teaneck, NY); Vranas, Paylos Michael (Bedford Hills, NY); Takken, Todd E. (Brewster, NY)

    2008-08-26

    A data capture technique for high speed signaling to allow for optimal sampling of an asynchronous data stream. This technique allows for extremely high data rates and does not require that a clock be sent with the data as is done in source synchronous systems. The present invention also provides a hardware mechanism for automatically adjusting transmission delays for optimal two-bit simultaneous bi-directional (SiBiDi) signaling.

  1. Energy curable compositions having improved cure speeds

    DOE Patents [OSTI]

    Halm, L.W.

    1993-05-18

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

  2. The pMSSM10 after LHC run 1

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

    de Vries, K. J.; Cavanaugh, R.

    2015-09-15

    We present a frequentist analysis of the parameter space of the pMSSM10, in which the following ten soft SUSY-breaking parameters are specified independently at the mean scalar top mass scale MSUSY ? $\\sqrt{m$\\tilde{t}$1m$\\tilde{t}$2}$ : the gaugino masses M1,2,3 , the first-and second-generation squark masses m$\\tilde{q}$1 = m$\\tilde{q}$2 , the third-generation squark mass m$\\tilde{q}$3, a common slepton mass m$\\tilde{?}$ and a common trilinear mixing parameter A , as well as the Higgs mixing parameter ? , the pseudoscalar Higgs mass MA and tan? , the ratio of the two Higgs vacuum expectation values. We use the MultiNest sampling algorithm with ?more »1.2 ×109 points to sample the pMSSM10 parameter space. A dedicated study shows that the sensitivities to strongly interacting sparticle masses of ATLAS and CMS searches for jets, leptons + E-slashT signals depend only weakly on many of the other pMSSM10 parameters. With the aid of the Atom and Scorpion codes, we also implement the LHC searches for electroweakly interacting sparticles and light stops, so as to confront the pMSSM10 parameter space with all relevant SUSY searches. In addition, our analysis includes Higgs mass and rate measurements using the HiggsSignals code, SUSY Higgs exclusion bounds, the measurements of BR(Bs??+?-) by LHCb and CMS, other B -physics observables, electroweak precision observables, the cold dark matter density and the XENON100 and LUX searches for spin-independent dark matter scattering, assuming that the cold dark matter is mainly provided by the lightest neutralino ?-tilde10 . We show that the pMSSM10 is able to provide a supersymmetric interpretation of (g-2)? , unlike the CMSSM, NUHM1 and NUHM2. As a result, we find (omitting Higgs rates) that the minimum ?2=20.5 with 18 degrees of freedom (d.o.f.) in the pMSSM10, corresponding to a ?2 probability of 30.8 %, to be compared with ?2/d.o.f.=32.8/24(31.1/23)(30.3/22) in the CMSSM (NUHM1) (NUHM2). We display the one-dimensional likelihood functions for sparticle masses, and we show that they may be significantly lighter in the pMSSM10 than in the other models, e.g., the gluino may be as light as ? 1250 GeV at the 68 % CL, and squarks, stops, electroweak gauginos and sleptons may be much lighter than in the CMSSM, NUHM1 and NUHM2. We discuss the discovery potential of future LHC runs, e+e- colliders and direct detection experiments.« less

  3. Running the AP DDR Query in PeopleSoft 8.8 1 Running the AP DDR Query in PeopleSoft 8.8

    E-Print Network [OSTI]

    Barrash, Warren

    Running the AP DDR Query in PeopleSoft 8.8 1 Running the AP DDR Query in PeopleSoft 8.8 People Novell user ID and password and click the Sign In button. #12;Running the AP DDR Query in PeopleSoft 8: In the top border of your window you will see your user Id. #12;Running the AP DDR Query in PeopleSoft 8.8 3

  4. Ground fluidization promotes rapid running of a lightweight robot

    E-Print Network [OSTI]

    Goldman, Daniel I.

    . Goldman1 Abstract We study the locomotor mechanics of a small, lightweight robot (DynaRoACH, 10 cm, 25 g, reflecting a change in propulsion mode. At low frequencies, the robot used a quasi- static "rotary walking was achieved. At high frequencies the robot propelled itself using the speed-dependent fluid-like inertial

  5. RAPID DUST FORMATION IN NOVAE: THE SPEED CLASS—FORMATION TIMESCALE CORRELATION EXPLAINED

    SciTech Connect (OSTI)

    Williams, S. C.; Bode, M. F.; Darnley, M. J.; Evans, A.; Zubko, V.; Shafter, A. W.

    2013-11-10

    Observations show that the time of onset of dust formation in classical novae depends strongly on their speed class, with dust typically taking longer to form in slower novae. Using empirical relationships between speed class, luminosity and ejection velocity, it can be shown that dust formation timescale is expected to be essentially independent of speed class. However, following a nova outburst the spectrum of the central hot source evolves, with an increasing proportion of the radiation being emitted short-ward of the Lyman limit. The rate at which the spectrum evolves also depends on the speed class. We have therefore refined the simple model by assuming photons at energies higher than the Lyman limit are absorbed by neutral hydrogen gas internal to the dust formation sites, therefore preventing these photons reaching the nucleation sites. With this refinement the dust formation timescale is theoretically dependent on speed class and the results of our theoretical modification agree well with the observational data. We consider two types of carbon-based dust, graphite and amorphous carbon, with both types producing similar relationships. Our results can be used to predict when dust will form in a nova of a given speed class and hence when observations should optimally be taken to detect the onset of dust formation.

  6. The ATLAS Trigger System: Ready for Run 2

    E-Print Network [OSTI]

    Czodrowski, Patrick; The ATLAS collaboration

    2015-01-01

    The ATLAS trigger system has been used successfully for data collection in the 2009-2013 Run 1 operation cycle of the CERN Large Hadron Collider (LHC) at center-of-mass energies of up to 8 TeV. With the restart of the LHC for the new Run 2 data-taking period at 13 TeV, the trigger rates are expected to rise by approximately a factor of 5. This presentation gave a brief overview of the upgrades to the ATLAS trigger system that have been implemented during the LHC shutdown period in order to deal with the increased trigger rates while efficiently selecting the physics processes of interest. These upgrades include changes to the L1 calorimeter trigger, the introduction of a new L1 topological trigger module, improvements in the L1 muon system, and the merging of the previously two-level HLT system into a single processing farm.

  7. Fact #671: April 18, 2011 Average Truck Speeds | Department of...

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

    2011 Average Truck Speeds The Federal Highway Administration studies traffic volume and flow on major truck routes by tracking more than 500,000 trucks. The average speed of trucks...

  8. Low voltage amplifier architecture for high speed switched capacitor circuits 

    E-Print Network [OSTI]

    Shankar, Asit

    2001-01-01

    This work concentrates on circuit realization of high speed and low voltage switched capacitor circuits, with emphasis on the operational transconductance amplifier (OTA). An overview of switched capacitor circuits is given. Speed and voltage...

  9. Laminar Flame Speeds of Nano-Aluminum/Methane Hybrid Mixtures 

    E-Print Network [OSTI]

    Sikes, Travis

    2014-12-12

    An existing flame speed bomb, which uses optical techniques to measure laminar flame speed, was employed to study the fundamental phenomena of flame propagation through a uniformly dispersed aerosol. In a previous thesis ...

  10. Adjustable Speed AC Motor Drives-Applications Problems 

    E-Print Network [OSTI]

    Enjeti, P.

    1997-01-01

    Adjustable speed AC drives have become the preferred choice in many industrial applications where controlled speed is required. At the same time, the maturing of the technology and the availability of fast and efficient ...

  11. Advanced Variable Speed Air-Source Integrated Heat Pump | Department...

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

    Advanced variable-speed Air Source Integrated Heat Pump prototype system and field test site near Knoxville, TN Credit: Oak Ridge National Lab Advanced variable-speed Air Source...

  12. Excitation and control of a high-speed induction generator

    E-Print Network [OSTI]

    Englebretson, Steven Carl

    2005-01-01

    This project investigates the use of a high speed, squirrel cage induction generator and power converter for producing DC electrical power onboard ships and submarines. Potential advantages of high speed induction generators ...

  13. How to Avoid Overestimating Variable Speed Drive Savings 

    E-Print Network [OSTI]

    Maxwell, J. B.

    2005-01-01

    of Magnetically Coupled Adjustable Speed Drive Systems, Pacific Northwest National Laboratory, PNNL-13879, June 2002. 9. Electric Power Research Institute, Title and date unknown, PR I966-241, as cited in "Adjustable Speed Drives" section of "Industrial...

  14. Economical Aspects of Adjustable Speed Drives in Pumping Systems 

    E-Print Network [OSTI]

    Hovstadius, G.

    1999-01-01

    Speed variations of pumps have become increasingly popular as the technology to produce variable frequency drives has progressed. Variable speed drives have many advantages compared to throttle valves when it comes to regulation of flow. They offer...

  15. CMS physics highlights in the LHC Run 1

    E-Print Network [OSTI]

    David d'Enterria for the CMS Collaboration

    2015-05-18

    The main physics results obtained by the CMS experiment during the first three years of operation of the CERN Large Hadron Collider (2010--2013, aka. Run 1) are summarized. The advances in our understanding of the fundamental particles and their interactions are succinctly reviewed under the following physics topics: (i) Quantum Chromodynamics, (ii) Quark Gluon Plasma, (iii) Electroweak interaction, (iv) Top quark, (v) Higgs boson, (vi) Flavour, (vii) Supersymmetry, (viii) Dark Matter, and (ix) other searches of physics beyond the Standard Model.

  16. Pleasant Run Farm, Ohio: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History ViewMayo, Maryland:NPIProtectio1975) | OpenBethlehemPlainsboroPlasticCalifornia:Plains,Run Farm,

  17. Pleasant Run, Ohio: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History ViewMayo, Maryland:NPIProtectio1975) | OpenBethlehemPlainsboroPlasticCalifornia:Plains,Run

  18. Running the Race for Clean Energy | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsofProgram: Report AppendicesA Token RequestingRoundtables RoundtablesRunning the

  19. Using the Tremaine-Weinberg method to measure pattern speeds from H?velocity maps

    E-Print Network [OSTI]

    John Beckman; Kambiz Fathi; Nuria Piñol; Olivier Hernandez; Claude Carignan; Isabel Pérez

    2008-10-29

    The Tremaine-Weinberg method is a well-known model independent technique for measuring density wave pattern speeds in spiral galaxies. Here we show how it can be applied to the data cubes (maps of surface brightness and velocity) obtained in H-alpha emission using a Fabry-Perot spectrometer. One of the main difficulties, the discontinuity of the H-alpha emission, is resolved using the neighbouring stellar continuum delivered by the data cube. We argue from symmetry that the motions not associated with the density wave should cancel. We show that our pattern speeds are reasonable by computing corotation radii, and comparing them to measured bar lengths. Simulations including star forming gas also add credibility to our results. Nevertheless it will be necessary to compare them with results using the spectra of the stellar components to quantify any systematic deviations from valid pattern speed values.

  20. Using the Tremaine-Weinberg method to measure pattern speeds from H\\alpha velocity maps

    E-Print Network [OSTI]

    Beckman, John; Piñol, Nuria; Hernandez, Olivier; Carignan, Claude; Pérez, Isabel

    2008-01-01

    The Tremaine-Weinberg method is a well-known model independent technique for measuring density wave pattern speeds in spiral galaxies. Here we show how it can be applied to the data cubes (maps of surface brightness and velocity) obtained in H-alpha emission using a Fabry-Perot spectrometer. One of the main difficulties, the discontinuity of the H-alpha emission, is resolved using the neighbouring stellar continuum delivered by the data cube. We argue from symmetry that the motions not associated with the density wave should cancel. We show that our pattern speeds are reasonable by computing corotation radii, and comparing them to measured bar lengths. Simulations including star forming gas also add credibility to our results. Nevertheless it will be necessary to compare them with results using the spectra of the stellar components to quantify any systematic deviations from valid pattern speed values.

  1. The ATLAS Trigger System - Ready for Run-2

    E-Print Network [OSTI]

    Backes, Moritz; The ATLAS collaboration

    2015-01-01

    The ATLAS trigger has been successfully collecting collision data during the first run of the LHC between 2009-2013 at a centre-of-mass energy between 900 GeV and 8 TeV. The trigger system consists of a hardware based Level-1 (L1) and a software based high-level trigger (HLT) that reduces the event rate from the design bunch-crossing rate of 40 MHz to an average recording rate of a few hundred Hz. During the course of the ongoing Run-2 data-taking campaign at 13 TeV centre-of-mass energy the trigger rates will be approximately 5 times higher compared to Run-1. In these proceedings we briefly review the ATLAS trigger system upgrades that were implemented during the shutdown, allowing us to cope with the increased trigger rates while maintaining or even improving our efficiency to select relevant physics processes. This includes changes to the L1 calorimeter and muon trigger system, the introduction of a new L1 topological trigger subsystem and the merging of the previously two-level HLT system into a single ev...

  2. LAr Calorimeter Performance and Commissioning for LHC Run-2

    E-Print Network [OSTI]

    Spettel, Fabian; The ATLAS collaboration

    2015-01-01

    The ATLAS detector was built to study proton-proton collisions produced by the Large Hadron Collider (LHC) at a center of mass energy of up to 14 TeV. The Liquid Argon (LAr) calorimeters are used for all electromagnetic calorimetry as well as the hadronic calorimetry in the endcap and forward regions. They have shown excellent performance during the first LHC data taking campaign, from 2010 to 2012, so-called Run 1, at a peak luminosity of $8 \\times 10^{33} \\text{cm}^{-2}\\text{s}^{-1}$. During the next run, peak luminosities of $1.5 \\times 10^{34} \\text{cm}^{-2}\\text{s}^{-1}$ and even higher are expected at a 25ns bunch spacing. Such a high collision rate may have an impact on the quality of the energy reconstruction which is attempted to be maintained at a high level using a calibration procedure described in this contribution. It also poses major challenges to the first level of the trigger system which is constrained to a maximal rate of 100 kHz. For Run-3, scheduled to start in 2019, instantaneous luminos...

  3. Study Shows Significant Economic Impact from Recovery Act | Department...

    Office of Environmental Management (EM)

    Study Shows Significant Economic Impact from Recovery Act Study Shows Significant Economic Impact from Recovery Act A study recently released shows the 1.6 billion the Savannah...

  4. Adjustable Speed Pumping Applications - Pumping Systems Tip Sheet #11

    SciTech Connect (OSTI)

    2007-01-01

    This two-page tip sheet provides practical tips on application of Adjustable Speed Drives in industrial settings.

  5. Speed Control in Industrial Refrigeration: Theory, Application & Case Studies 

    E-Print Network [OSTI]

    Wilcox, M. H.

    1995-01-01

    -pressure regulators (BPRs) or liquid solenoids, and condensers cycle fans. Unfortunately, these control methods do not provide the maximum attainable reduction in brake horsepower (BHP) as refrigeration capacity is reduced. This paper will discuss... theory and case study, speed control of these components provides maximum flexibility, control and energy efficiency. SPEED CONTROL BACKGROUND In standard system design, electric motors are intended to operate at a fixed speed. This speed...

  6. The Access Almanac: Planning for High Speed Rail

    E-Print Network [OSTI]

    Wachs, Martin

    2012-01-01

    ALMANAC Planning for High Speed Rail M A R T I N WA C H S CO R N O T T O build a high speed rail system and, if so, howWhy has planning for high speed rail in California been so

  7. High Speed Imaging Technology for the Microgravity Containerless Processing Facility

    E-Print Network [OSTI]

    Fossum, Eric R.

    Study on High Speed Imaging Technology for the Microgravity Containerless Processing Facility Dr September 15, 1992 #12;High Speed Imaging Technology Study page 2 TABLE OF CONTENTS Glossary........................................................................................................................18 #12;High Speed Imaging Technology Study page 3 Glossary A/D analog-to-digital converter APS active

  8. Wind speed PDF classification using Dirichlet mixtures Rudy CALIF1

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Wind speed PDF classification using Dirichlet mixtures Rudy CALIF1 , Richard EMILION2 , Ted'Orléans), UMR CNRS 6628 Université d'Orléans, France. Abstract: Wind energy production is very sensitive to instantaneous wind speed fluctuations. Thus rapid variation of wind speed due to changes in the local

  9. WIND SPEED VARIABILITY AND ADAPTATION STRATEGIES IN COASTAL AREAS

    E-Print Network [OSTI]

    Kohfeld, Karen

    WIND SPEED VARIABILITY AND ADAPTATION STRATEGIES IN COASTAL AREAS OF THE PACIFIC NORTHWEST of Thesis: Wind Speed Variability and Adaptation Strategies in Coastal Areas of the Pacific Northwest/Approved: ___________________________________________ #12;iii ABSTRACT Overall, previous wind speed studies in the Pacific Northwest (PNW) present

  10. Magnetically Coupled Adjustable Speed Motor Drives - Motor Tip Sheet #13

    SciTech Connect (OSTI)

    2008-07-01

    Alternating current electric motors rotate at a nearly constant speed that is determined by motor design and line frequency. Energy savings of 50% or more may be available when fixed speed systems are modified to allow the motor speed to match variable load requirements of a centrifugal fan or pump.

  11. Estimation of Wind Speed in Connection to a Wind Turbine

    E-Print Network [OSTI]

    Estimation of Wind Speed in Connection to a Wind Turbine X. Ma #3; , N. K. Poulsen #3; , H. Bindner y December 20, 1995 Abstract The wind speed varies over the rotor plane of wind turbine making the wind speed on the rotor plane will be estimated by using a wind turbine as a wind measuring device

  12. Scientific Method, Statistical Method, and the Speed of Light.

    E-Print Network [OSTI]

    Oldford, R.W.

    Scientific Method, Statistical Method, and the Speed of Light. R.J. Mackay and R.W. Oldford Working on the speed of light carried out by A.A. Michelson in 1879. Our answer to the second question is negative. To understand this a history on the speed of light up to the time of Michelson's study is presented. The larger

  13. Taiwan High Speed Rail Keeping passenger safety at the forefront

    E-Print Network [OSTI]

    Taiwan High Speed Rail Keeping passenger safety at the forefront Overview The Need Taiwan High, high-speed travel in Taiwan." -- Ming-Der Lee, manager of Maintenance Management Information Systems, Taiwan High Speed Rail Corporation Like a few countries, life on the island nation of Taiwan is shaped

  14. Relationships between access and operating speed on suburban arterials 

    E-Print Network [OSTI]

    Brewer, Marcus Allen

    1999-01-01

    for tangent sections was posted speed limit. Because 85th percentile speed is frequently used to set the posted speed limit, one may expect that one value would be able to predict the other as is shown in this analysis. Another series of analyses were...

  15. Moving system with speeded-up evolution

    E-Print Network [OSTI]

    M. I. Shirokov

    2008-02-29

    In the classical (non-quantum) relativity theory the course of the moving clock is dilated as compared to the course of the clock at rest (the Einstein dilation). Any unstable system may be regarded as a clock. The time evolution (e.g., the decay) of a uniformly moving physical system is considered using the relativistic quantum theory. The example of a moving system is given whose evolution turns out to be speeded-up instead of being dilated. A discussion of this paradoxical result is presented.

  16. Signal Speed in Nanomagnetic Logic Chains

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effect Photovoltaics -7541 UnlimitedShift EndShutdown 2013SignalSignal Speed in

  17. Signal Speed in Nanomagnetic Logic Chains

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effect Photovoltaics -7541 UnlimitedShift EndShutdown 2013SignalSignal Speed

  18. Signal Speed in Nanomagnetic Logic Chains

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effect Photovoltaics -7541 UnlimitedShift EndShutdown 2013SignalSignal SpeedSignal

  19. Nuclear Speed-Dating | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesseworkSURVEY UNIVERSE The 2014 survey includesScience ProgramsSpeed-Dating

  20. Signal Speed in Nanomagnetic Logic Chains

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation ofAlbuquerque|Sensitive Species3 Outlook for Gulf ofSifting ThroughSignal Speed

  1. The interaction of high-speed turbulence with flames: Global properties and internal flame structure

    SciTech Connect (OSTI)

    Poludnenko, A.Y.; Oran, E.S. [Laboratory for Computational Physics and Fluid Dynamics, Naval Research Laboratory, Washington, DC 20375 (United States)

    2010-05-15

    We study the dynamics and properties of a turbulent flame, formed in the presence of subsonic, high-speed, homogeneous, isotropic Kolmogorov-type turbulence in an unconfined system. Direct numerical simulations are performed with Athena-RFX, a massively parallel, fully compressible, high-order, dimensionally unsplit, reactive flow code. A simplified reaction-diffusion model represents a stoichiometric H{sub 2}-air mixture. The system being modeled represents turbulent combustion with the Damkoehler number Da=0.05 and with the turbulent velocity at the energy injection scale 30 times larger than the laminar flame speed. The simulations show that flame interaction with high-speed turbulence forms a steadily propagating turbulent flame with a flame brush width approximately twice the energy injection scale and a speed four times the laminar flame speed. A method for reconstructing the internal flame structure is described and used to show that the turbulent flame consists of tightly folded flamelets. The reaction zone structure of these is virtually identical to that of the planar laminar flame, while the preheat zone is broadened by approximately a factor of two. Consequently, the system evolution represents turbulent combustion in the thin reaction zone regime. The turbulent cascade fails to penetrate the internal flame structure, and thus the action of small-scale turbulence is suppressed throughout most of the flame. Finally, our results suggest that for stoichiometric H{sub 2}-air mixtures, any substantial flame broadening by the action of turbulence cannot be expected in all subsonic regimes. (author)

  2. Verification of the helioseismology travel-time measurement technique and the inversion procedure for sound speed using artificial data

    SciTech Connect (OSTI)

    Parchevsky, K. V.; Zhao, J.; Hartlep, T.; Kosovichev, A. G.

    2014-04-10

    We performed three-dimensional numerical simulations of the solar surface acoustic wave field for the quiet Sun and for three models with different localized sound-speed perturbations in the interior with deep, shallow, and two-layer structures. We used the simulated data generated by two solar acoustics codes that employ the same standard solar model as a background model, but utilize different integration techniques and different models of stochastic wave excitation. Acoustic travel times were measured using a time-distance helioseismology technique, and compared with predictions from ray theory frequently used for helioseismic travel-time inversions. It is found that the measured travel-time shifts agree well with the helioseismic theory for sound-speed perturbations, and for the measurement procedure with and without phase-speed filtering of the oscillation signals. This testing verifies the whole measuring-filtering-inversion procedure for static sound-speed anomalies with small amplitude inside the Sun outside regions of strong magnetic field. It is shown that the phase-speed filtering, frequently used to extract specific wave packets and improve the signal-to-noise ratio, does not introduce significant systematic errors. Results of the sound-speed inversion procedure show good agreement with the perturbation models in all cases. Due to its smoothing nature, the inversion procedure may overestimate sound-speed variations in regions with sharp gradients of the sound-speed profile.

  3. Lensless magneto-optic speed sensor

    DOE Patents [OSTI]

    Veeser, L.R.; Forman, P.R.; Rodriguez, P.J.

    1998-02-17

    Lensless magneto-optic speed sensor is disclosed. The construction of a viable Faraday sensor has been achieved. Multimode fiber bundles are used to collect the light. If coupled directly into a 100 or 200 {micro}m core fiber, light from a light emitting diode (LED) is sufficient to operate the sensor. In addition, LEDs ensure that no birefringence effects in the input fiber are possible, as the output from such light sources have random polarization. No lens is required since the large diameter optical fibers and thin crystals of materials having high Verdet constants (such as iron garnets) employed permit the collection of a substantial quantity of light. No coupler is required. The maximum amount of light which could reach a detector using a coupler is 25%, while the measured throughput of the fiber-optic bundle without a coupler is about 42%. All of the elements employed in the present sensor are planar, and no particular orientation of these elements is required. The present sensor operates over a wide range of distances from magnetic field sources, and observed signals are large. When a tone wheel is utilized, the signals are independent of wheel speed, and the modulation is observed to be about 75%. No sensitivity to bends in the input or output optical fiber leads was observed. Reliable operation was achieved down to zero frequency, or no wheel rotation. 5 figs.

  4. Lensless Magneto-optic speed sensor

    DOE Patents [OSTI]

    Veeser, Lynn R. (Los Alamos, NM); Forman, Peter R. (Los Alamos, NM); Rodriguez, Patrick J. (Santa Fe, NM)

    1998-01-01

    Lensless magneto-optic speed sensor. The construction of a viable Faraday sensor has been achieved. Multimode fiber bundles are used to collect the light. If coupled directly into a 100 or 200 .mu.m core fiber, light from a light emitting diode (LED) is sufficient to operate the sensor. In addition, LEDs ensure that no birefringence effects in the input fiber are possible, as the output from such light sources have random polarization. No lens is required since the large diameter optical fibers and thin crystals of materials having high Verdet constants (such as iron garnets) employed permit the collection of a substantial quantity of light. No coupler is required. The maximum amount of light which could reach a detector using a coupler is 25%, while the measured throughput of the fiber-optic bundle without a coupler is about 42%. All of the elements employed in the present sensor are planar, and no particular orientation of these elements is required. The present sensor operates over a wide range of distances from magnetic field sources, and observed signals are large. When a tone wheel is utilized, the signals are independent of wheel speed, and the modulation is observed to be about 75%. No sensitivity to bends in the input or output optical fiber leads was observed. Reliable operation was achieved down to zero frequency, or no wheel rotation.

  5. The Speed of Sound in Hadronic Matter

    E-Print Network [OSTI]

    Castorina, P; Miller, D E; Satz, H

    2009-01-01

    We calculate the speed of sound $c_s$ in an ideal gas of resonances whose mass spectrum is assumed to have the Hagedorn form $\\rho(m) \\sim m^{-a}\\exp{bm}$, which leads to singular behavior at the critical temperature $T_c = 1/b$. With $a = 4$ the pressure and the energy density remain finite at $T_c$, while the specific heat diverges there. As a function of the temperature the corresponding speed of sound initially increases similarly to that of an ideal pion gas until near $T_c$ where the resonance effects dominate causing $c_s$ to vanish as $(T_c - T)^{1/4}$. In order to compare this result to the physical resonance gas models, we introduce an upper cut-off M in the resonance mass integration. Although the truncated form still decreases somewhat in the region around $T_c$, the actual critical behavior in these models is no longer present.

  6. Computer Based Motor Parameter Determination for High Speed Operation of Permanent Magnet Synchronous Machines

    E-Print Network [OSTI]

    Szabados, Barna

    Synchronous Machines B. Szabados and U. Schaible McMaster University 1280 Main St. W., Hamilton, Ontario PM synchronous machine parameters in the high speed operating range. The theory and real interior PM synchronous machine at up to 8000 rpm. Results are presented which show a significant variation

  7. High-speed quantum memory with thermal motion of atoms

    E-Print Network [OSTI]

    K. Tikhonov; T. Golubeva; Yu. Golubev

    2015-02-26

    We discuss the influence of atomic thermal motion on the efficiency of multimode quantum memory in two configurations: over the free expand of atoms cooled beforehand in a magneto-optical trap, and over complete mixing of atoms in a closed cell at room temperature. We consider the high-speed quantum memory, and assume that writing and retrieval are short enough, and the displacements of atoms during these stages are negligibly small. At the same time we take in account thermal motion during the storage time, which, as well known, must be much longer than durations of all the other memory processes for successful application of memory cell in communication and computation. We will analyze this influence in terms of eigenmodes of the full memory cycle and show that distortion of the eigenmodes, caused by thermal motion, leads to the efficiency reduction. We will demonstrate, that in the multimode memory this interconnection has complicated character.

  8. How genealogies are affected by the speed of evolution

    E-Print Network [OSTI]

    Éric Brunet; Bernard Derrida

    2011-07-12

    In a series of recent works it has been shown that a class of simple models of evolving populations under selection leads to genealogical trees whose statistics are given by the Bolthausen-Sznitman coalescent rather than by the well known Kingman coalescent in the case of neutral evolution. Here we show that when conditioning the genealogies on the speed of evolution, one finds a one parameter family of tree statistics which interpolates between the Bolthausen-Sznitman and Kingman's coalescents. This interpolation can be calculated explicitly for one specific version of the model, the exponential model. Numerical simulations of another version of the model and a phenomenological theory indicate that this one-parameter family of tree statistics could be universal. We compare this tree structure with those appearing in other contexts, in particular in the mean field theory of spin glasses.

  9. How genealogies are affected by the speed of evolution

    E-Print Network [OSTI]

    Brunet, Éric

    2011-01-01

    In a series of recent works it has been shown that a class of simple models of evolving populations under selection leads to genealogical trees whose statistics are given by the Bolthausen-Sznitman coalescent rather than by the well known Kingman coalescent in the case of neutral evolution. Here we show that when conditioning the genealogies on the speed of evolution, one finds a one parameter family of tree statistics which interpolates between the Bolthausen-Sznitman and Kingman's coalescents. This interpolation can be calculated explicitly for one specific version of the model, the exponential model. Numerical simulations of another version of the model and a phenomenological theory indicate that this one-parameter family of tree statistics could be universal. We compare this tree structure with those appearing in other contexts, in particular in the mean field theory of spin glasses.

  10. Hi-Q Rotor - Low Wind Speed Technology

    SciTech Connect (OSTI)

    Todd E. Mills; Judy Tatum

    2010-01-11

    The project objective was to optimize the performance of the Hi-Q Rotor. Early research funded by the California Energy Commission indicated the design might be advantageous over state-of-the-art turbines for collecting wind energy in low wind conditions. The Hi-Q Rotor is a new kind of rotor targeted for harvesting wind in Class 2, 3, and 4 sites, and has application in areas that are closer to cities, or 'load centers.' An advantage of the Hi-Q Rotor is that the rotor has non-conventional blade tips, producing less turbulence, and is quieter than standard wind turbine blades which is critical to the low-wind populated urban sites. Unlike state-of-the-art propeller type blades, the Hi-Q Rotor has six blades connected by end caps. In this phase of the research funded by DOE's Inventions and Innovation Program, the goal was to improve the current design by building a series of theoretical and numeric models, and composite prototypes to determine a best of class device. Development of the rotor was performed by aeronautical engineering and design firm, DARcorporation. From this investigation, an optimized design was determined and an 8-foot diameter, full-scale rotor was built and mounted using a Bergey LX-1 generator and furling system which were adapted to support the rotor. The Hi-Q Rotor was then tested side-by-side against the state-of-the-art Bergey XL-1 at the Alternative Energy Institute's Wind Test Center at West Texas State University for six weeks, and real time measurements of power generated were collected and compared. Early wind tunnel testing showed that the cut-in-speed of the Hi-Q rotor is much lower than a conventional tested HAWT enabling the Hi-Q Wind Turbine to begin collecting energy before a conventional HAWT has started spinning. Also, torque at low wind speeds for the Hi-Q Wind Turbine is higher than the tested conventional HAWT and enabled the wind turbine to generate power at lower wind speeds. Based on the data collected, the results of our first full-scale prototype wind turbine proved that higher energy can be captured at lower wind speeds with the new Hi-Q Rotor. The Hi-Q Rotor is almost 15% more productive than the Bergey from 6 m/s to 8 m/s, making it ideal in Class 3, 4, and 5 wind sites and has application in the critical and heretofore untapped areas that are closer to cities, 'load centers,' and may even be used directly in urban areas. The additional advantage of the Hi-Q Rotor's non-conventional blade tips, which eliminates most air turbulence, is noise reduction which makes it doubly ideal for populated urban areas. Hi-Q Products recommends one final stage of development to take the Hi-Q Rotor through Technology Readiness Levels 8-9. During this stage of development, the rotor will be redesigned to further increase efficiency, match the rotor to a more suitable generator, and lower the cost of manufacturing by redesigning the structure to allow for production in larger quantities at lower cost. Before taking the rotor to market and commercialization, it is necessary to further optimize the performance by finding a better generator and autofurling system, ones more suitable for lower wind speeds and rpms should be used in all future testing. The potential impact of this fully developed technology will be the expansion and proliferation of energy renewal into the heretofore untapped Class 2, 3, 4, and 5 Wind Sites, or the large underutilized sites where the wind speed is broken by physical features such as mountains, buildings, and trees. Market estimates by 2011, if low wind speed technology can be developed are well above: 13 million homes, 675,000 commercial buildings, 250,000 public facilities. Estimated commercial exploitation of the Hi-Q Rotor show potential increase in U.S. energy gained through the clean, renewable wind energy found in low and very low wind speed sites. This new energy source would greatly impact greenhouse emissions as well as the public sector's growing energy demands.

  11. SpeedBalance: Speed-Scaling-Aware Optimal Load Balancing for Green Cellular Networks

    E-Print Network [OSTI]

    Shihada, Basem

    at base stations (BSs) as they are the key source of heavy energy usage in cellular networks, reported and Bhaskar Krishnamachari Department of Electrical Engineering, Viterbi School of Engineering University for a flexible tradeoff between delay and energy, we first study how to adaptively vary the processing speed

  12. Modeling torque versus speed, shot noise, and rotational diffusion of the bacterial flagellar motor

    E-Print Network [OSTI]

    Thierry Mora; Howard Yu; Ned S. Wingreen

    2009-10-05

    We present a minimal physical model for the flagellar motor that enables bacteria to swim. Our model explains the experimentally measured torque-speed relationship of the proton-driven E. coli motor at various pH and temperature conditions. In particular, the dramatic drop of torque at high rotation speeds (the "knee") is shown to arise from saturation of the proton flux. Moreover, we show that shot noise in the proton current dominates the diffusion of motor rotation at low loads. This suggests a new way to probe the discreteness of the energy source, analogous to measurements of charge quantization in superconducting tunnel junctions.

  13. CMS Data Processing Workflows during an Extended Cosmic Ray Run

    SciTech Connect (OSTI)

    Not Available

    2009-11-01

    The CMS Collaboration conducted a month-long data taking exercise, the Cosmic Run At Four Tesla, during October-November 2008, with the goal of commissioning the experiment for extended operation. With all installed detector systems participating, CMS recorded 270 million cosmic ray events with the solenoid at a magnetic field strength of 3.8 T. This paper describes the data flow from the detector through the various online and offline computing systems, as well as the workflows used for recording the data, for aligning and calibrating the detector, and for analysis of the data.

  14. Tevatron End-of-Run Beam Physics Experiments

    SciTech Connect (OSTI)

    Valishev, A.; Gu, X.; Miyamoto, R.; White, S.; Schmidt, F.; Qiang, J.; /LBNL

    2012-05-01

    Before the Tevatron Collider Run II ended in September of 2011, a number of specialized beam study periods were dedicated to the experiments on various accelerator physics concepts and effects during the last year of the machine operation. The study topics included collimation with bent crystals and hollow electron beams, diffusion measurements and various aspects of beam-beam interactions. In this report we concentrate on the subject of beam-beam interactions, summarizing the results of beam experiments. The covered topics include offset collisions, coherent beam stability, effect of the bunch-length-to-beta-function ratio, and operation of AC dipole with colliding beams.

  15. Tevatron End-of-Run Beam Physics Experiments

    E-Print Network [OSTI]

    Valishev, A; Miyamoto, R; White, S; Schmidt, F; Qiang, J

    2012-01-01

    Before the Tevatron Collider Run II ended in September of 2011, a number of specialized beam study periods were dedicated to the experiments on various accelerator physics concepts and effects during the last year of the machine operation. The study topics included collimation with bent crystals and hollow electron beams, diffusion measurements and various aspects of beambeam interactions. In this report we concentrate on the subject of beam-beam interactions, summarizing the results of beam experiments. The covered topics include offset collisions, coherent beam stability, effect of the bunch-length-to-beta-function ratio, and operation of AC dipole with colliding beams.

  16. SSRL_2004_Run_Sched_3_22_04.xls

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust, High-Throughput Analysis of Protein1-0845*RV6 Commercial8thUSERS'6/02 Run Shutdown22/04

  17. Boise Buses Running Strong with Clean Cities | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum Based Fuels Researchof Energy|Make6,Energy BlueBobBoise Buses Running

  18. Birch Run, Michigan: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental JumpInformationBio-Gas Technologies, LLC JumpBiofameData BookScenarioLake,Run,

  19. Brent Run Generating Station Biomass Facility | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowaWisconsin:PontiacInformation Forest Service ClimateI JumpBrent Run

  20. Wuhu RunPhoton Tech Co Ltd | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowa (UtilityMichigan) Jump to: navigation, searchWorldWudupowerWuhu RunPhoton

  1. Secretary Chu Tours the 2013 Washington Auto Show | Department...

    Energy Savers [EERE]

    Tours the 2013 Washington Auto Show Secretary Chu Tours the 2013 Washington Auto Show January 31, 2013 - 5:04pm Addthis 1 of 10 While at the Washington Auto Show, Energy Secretary...

  2. High-speed electrical motor evaluation

    SciTech Connect (OSTI)

    Not Available

    1989-02-03

    Under this task, MTI conducted a general review of state-of-the-art high-speed motors. The purpose of this review was to assess the operating parameters, limitations and performance of existing motor designs, and to establish commercial sources for a motor compatible with the requirements of the Brayton-cycle system. After the motor requirements were established, a list of motor types, manufacturers and designs capable of achieving the requisite performance was compiled. This list was based on an in-house evaluation of designs. Following the establishment of these options, a technical evaluation of the designs selected was conducted. In parallel with their evaluations, MTI focused on the establishment of commercial sources.

  3. Merging of high speed argon plasma jets

    SciTech Connect (OSTI)

    Case, A.; Messer, S.; Brockington, S.; Wu, L.; Witherspoon, F. D.; Elton, R.

    2013-01-15

    Formation of an imploding plasma liner for the plasma liner experiment (PLX) requires individual plasma jets to merge into a quasi-spherical shell of plasma converging on the origin. Understanding dynamics of the merging process requires knowledge of the plasma phenomena involved. We present results from the study of the merging of three plasma jets in three dimensional geometry. The experiments were performed using HyperV Technologies Corp. 1 cm Minirailguns with a preionized argon plasma armature. The vacuum chamber partially reproduces the port geometry of the PLX chamber. Diagnostics include fast imaging, spectroscopy, interferometry, fast pressure probes, B-dot probes, and high speed spatially resolved photodiodes, permitting measurements of plasma density, temperature, velocity, stagnation pressure, magnetic field, and density gradients. These experimental results are compared with simulation results from the LSP 3D hybrid PIC code.

  4. Smart Surface and Lubrication Engineering show Promise for Gearbox...

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

    Smart Surface and Lubrication Engineering show Promise for Gearbox Reliability Smart Surface and Lubrication Engineering show Promise for Gearbox Reliability May 20, 2011 - 1:10pm...

  5. Energy Innovation Hub Report Shows Philadelphia-area Building...

    Office of Environmental Management (EM)

    Innovation Hub Report Shows Philadelphia-area Building Retrofits Could Support 23,500 Jobs Energy Innovation Hub Report Shows Philadelphia-area Building Retrofits Could Support...

  6. Federal Energy Management Trade Show | Department of Energy

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

    Federal Energy Management Trade Show Federal Energy Management Trade Show Addthis 1 of 4 Timothy Unruh, Program Manager for the Office of Energy Efficiency and Renewable Energy...

  7. SOUND-SPEED INVERSION OF THE SUN USING A NONLOCAL STATISTICAL CONVECTION THEORY

    SciTech Connect (OSTI)

    Zhang Chunguang; Deng Licai; Xiong Darun; Christensen-Dalsgaard, Jorgen

    2012-11-01

    Helioseismic inversions reveal a major discrepancy in sound speed between the Sun and the standard solar model just below the base of the solar convection zone. We demonstrate that this discrepancy is caused by the inherent shortcomings of the local mixing-length theory adopted in the standard solar model. Using a self-consistent nonlocal convection theory, we construct an envelope model of the Sun for sound-speed inversion. Our solar model has a very smooth transition from the convective envelope to the radiative interior, and the convective energy flux changes sign crossing the boundaries of the convection zone. It shows evident improvement over the standard solar model, with a significant reduction in the discrepancy in sound speed between the Sun and local convection models.

  8. High Speed/ Low Effluent Process for Ethanol

    SciTech Connect (OSTI)

    M. Clark Dale

    2006-10-30

    n this project, BPI demonstrated a new ethanol fermentation technology, termed the High Speed/ Low Effluent (HS/LE) process on both lab and large pilot scale as it would apply to wet mill and/or dry mill corn ethanol production. The HS/LE process allows very rapid fermentations, with 18 to 22% sugar syrups converted to 9 to 11% ethanol ‘beers’ in 6 to 12 hours using either a ‘consecutive batch’ or ‘continuous cascade’ implementation. This represents a 5 to 8X increase in fermentation speeds over conventional 72 hour batch fermentations which are the norm in the fuel ethanol industry today. The ‘consecutive batch’ technology was demonstrated on a large pilot scale (4,800 L) in a dry mill corn ethanol plant near Cedar Rapids, IA (Xethanol Biofuels). The pilot demonstrated that 12 hour fermentations can be accomplished on an industrial scale in a non-sterile industrial environment. Other objectives met in this project included development of a Low Energy (LE) Distillation process which reduces the energy requirements for distillation from about 14,000 BTU/gal steam ($0.126/gal with natural gas @ $9.00 MCF) to as low as 0.40 KW/gal electrical requirements ($0.022/gal with electricity @ $0.055/KWH). BPI also worked on the development of processes that would allow application of the HS/LE fermentation process to dry mill ethanol plants. A High-Value Corn ethanol plant concept was developed to produce 1) corn germ/oil, 2) corn bran, 3) ethanol, 4) zein protein, and 5) nutritional protein, giving multiple higher value products from the incoming corn stream.

  9. The effects of swing-leg retraction on running performance: analysis, simulation, and experiment

    E-Print Network [OSTI]

    Haberland, Matt

    Using simple running models, researchers have argued that swing-leg retraction can improve running robot performance. In this paper, we investigate whether this holds for a more realistic simulation model validated against ...

  10. Using the Bran Luminosity Detectors for Beam Emittance Monitoring During LHC Physics Runs

    E-Print Network [OSTI]

    Ratti, A.

    2013-01-01

    MONITORING DURING LHC PHYSICS RUNS* A. Ratti", H.S. Matis,IP5 during each of the Physics Runs. This provides a toolthe luminous regions from the physics experiments. Operator

  11. The PDF4LHC report on PDFs and LHC data: results from Run I and...

    Office of Scientific and Technical Information (OSTI)

    The PDF4LHC report on PDFs and LHC data: results from Run I and preparation for Run II Citation Details In-Document Search Title: The PDF4LHC report on PDFs and LHC data: results...

  12. Students Share Experiences from First Run of BioenergizeME Virtual...

    Energy Savers [EERE]

    Students Share Experiences from First Run of BioenergizeME Virtual Science Fair Students Share Experiences from First Run of BioenergizeME Virtual Science Fair December 18, 2014 -...

  13. Pilot Plant Completes Two 1,000-Hour Ethanol Performance Runs...

    Office of Environmental Management (EM)

    Pilot Plant Completes Two 1,000-Hour Ethanol Performance Runs Pilot Plant Completes Two 1,000-Hour Ethanol Performance Runs October 19, 2015 - 12:38pm Addthis ICM Inc. announced...

  14. Evaluation of the 1999 Predictions of the Run-Timing of Wild Migrant Yearling Chinook

    E-Print Network [OSTI]

    Washington at Seattle, University of

    timing, water temperature, total dissolved gas, flow, and spill at various dams. CRiSP model runs problems at Lower Granite Dam and small run sizes for some stocks (notably Catherine Creek for which only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii List of Figures

  15. Power Systems Development Facility Gasification Test Run TC09

    SciTech Connect (OSTI)

    Southern Company Services

    2002-09-30

    This report discusses Test Campaign TC09 of the Kellogg Brown & Root, Inc. (KBR) Transport Gasifier train with a Siemens Westinghouse Power Corporation (Siemens Westinghouse) particle filter system at the Power Systems Development Facility (PSDF) located in Wilsonville, Alabama. The Transport Gasifier is an advanced circulating fluidized-bed gasifier designed to operate as either a combustor or a gasifier in air- or oxygen-blown mode of operation using a particulate control device (PCD). The Transport Gasifier was operated as a pressurized gasifier during TC09 in air- and oxygen-blown modes. Test Run TC09 was started on September 3, 2002, and completed on September 26, 2002. Both gasifier and PCD operations were stable during the test run, with a stable baseline pressure drop. The oxygen feed supply system worked well and the transition from air to oxygen was smooth. The gasifier temperature varied between 1,725 and 1,825 F at pressures from 125 to 270 psig. The gasifier operates at lower pressure during oxygen-blown mode due to the supply pressure of the oxygen system. In TC09, 414 hours of solid circulation and over 300 hours of coal feed were attained with almost 80 hours of pure oxygen feed.

  16. The ATLAS Trigger System: Ready for Run-2

    E-Print Network [OSTI]

    Maeda, Junpei; The ATLAS collaboration

    2015-01-01

    The ATLAS trigger has been successfully collecting collision data during the first run of the LHC between 2009-2013 at a centre-of-mass energy between 900 GeV and 8 TeV. The trigger system consists of a hardware Level-1 (L1) and a software based high-level trigger (HLT) that reduces the event rate from the design bunch-crossing rate of 40 MHz to an average recording rate of a few hundred Hz. During the next data-taking period starting in 2015 (Run-2) the LHC will operate at a centre-of-mass energy of about 13 TeV resulting in roughly five times higher trigger rates. We will briefly review the ATLAS trigger system upgrades that were implemented during the shutdown, allowing us to cope with the increased trigger rates while maintaining or even improving our efficiency to select relevant physics processes. This includes changes to the L1 calorimeter and muon trigger system, the introduction of a new L1 topological trigger module and the merging of the previously two-level HLT system into a single event filter fa...

  17. Observational constraints on an inflation model with a running mass

    E-Print Network [OSTI]

    Laura Covi; David H. Lyth; Leszek Roszkowski

    1998-09-09

    We explore a model of inflation where the inflaton mass-squared is generated at a high scale by gravity-mediated soft supersymmetry breaking, and runs at lower scales to the small value required for slow-roll inflation. The running is supposed to come from the coupling of the inflaton to a non-Abelian gauge field. In contrast with earlier work, we do not constrain the magnitude of the supersymmetry breaking scale, and we find that the model might work even if squark and slepton masses come from gauge-mediated supersymmetry breaking. With the inflaton and gaugino masses in the expected range, and $\\alpha = g^2/4\\pi $ in the range $10^{-2}$ to $10^{-3}$ (all at the high scale) the model can give the observed cosmic microwave anisotropy, and a spectral index in the observed range. The latter has significant variation with scale, which can confirm or rule out the model in the forseeable future.

  18. OVIS: Scalable Run Time Data Collection Analysis and Visualization

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTech ConnectSpeeding access to science information from DOE and Beyond(Abstract).

  19. MCNP speed advances for boron neutron capture therapy

    SciTech Connect (OSTI)

    Goorley, J.T.; McKinney, G.; Adams, K.; Estes, G.

    1998-04-01

    The Boron Neutron Capture Therapy (BNCT) treatment planning process of the Beth Israel Deaconess Medical Center-M.I.T team relies on MCNP to determine dose rates in the subject`s head for various beam orientations. In this time consuming computational process, four or five potential beams are investigated. Of these, one or two final beams are selected and thoroughly evaluated. Recent advances greatly decreased the time needed to do these MCNP calculations. Two modifications to the new MCNP4B source code, lattice tally and tracking enhancements, reduced the wall-clock run times of a typical one million source neutrons run to one hour twenty five minutes on a 200 MHz Pentium Pro computer running Linux and using the GNU FORTRAN compiler. Previously these jobs used a special version of MCNP4AB created by Everett Redmond, which completed in two hours two minutes. In addition to this 30% speedup, the MCNP4B version was adapted for use with Parallel Virtual Machine (PVM) on personal computers running the Linux operating system. MCNP, using PVM, can be run on multiple computers simultaneously, offering a factor of speedup roughly the same as the number of computers used. With two 200 MHz Pentium Pro machines, the run time was reduced to forty five minutes, a 1.9 factor of improvement over the single Linux computer. While the time of a single run was greatly reduced, the advantages associated with PVM derive from using computational power not already used. Four possible beams, currently requiring four separate runs, could be run faster when each is individually run on a single machine under Windows NT, rather than using Linux and PVM to run one after another with each multiprocessed across four computers. It would be advantageous, however, to use PVM to distribute the final two beam orientations over four computers.

  20. Estimation of wave run-up on smooth, impermeable slopes using the wave momentum flux parameter

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Estimation of wave run-up on smooth, impermeable slopes using the wave momentum flux parameter-examines existing wave run-up data for regular, irregular and solitary waves on smooth, impermeable plane slopes. A simple physical argument is used to derive a new wave run-up equation in terms of a dimensionless wave

  1. Running Behavior and Its Energy Cost in Mice Selectively Bred for High Voluntary Locomotor Activity

    E-Print Network [OSTI]

    Saltzman, Wendy

    662 Running Behavior and Its Energy Cost in Mice Selectively Bred for High Voluntary Locomotor. This increase in time spent running impinged on high energy costs because the majority of running costs stemmed. 2006; Oufiero and Garland 2007). In these contexts, both the limits to performance and the energy costs

  2. Run-Time Adaptation in River REMZI H. ARPACI-DUSSEAU

    E-Print Network [OSTI]

    Arpaci-Dusseau, Andrea

    Run-Time Adaptation in River REMZI H. ARPACI-DUSSEAU University of Wisconsin--Madison We present the design, implementation, and evaluation of run-time adaptation within the River dataflow programming insight on the positives and negatives of run-time adaptation both specifically in River and in a broader

  3. In-River Backwards Run Reconstruction of Fraser River Sockeye Fisheries from 2002 -2009 and

    E-Print Network [OSTI]

    In-River Backwards Run Reconstruction of Fraser River Sockeye Fisheries from 2002 - 2009: Master of Resource Management Title of Research Project: In-River Backwards Run Reconstruction of Fraser managers I develop an in-river backwards run reconstruction to provide Conservation Unit (CU) specific

  4. Ambiguity in running spectral index with an extra light field during inflation

    E-Print Network [OSTI]

    Kazunori Kohri; Tomohiro Matsuda

    2015-01-15

    At the beginning of inflation there could be extra dynamical scalar fields that will soon disappear (become static) before the end of inflation. In the light of multi-field inflation, those extra degrees of freedom may alter the time-dependence of the original spectrum of the curvature perturbation. It is possible to remove such fields introducing extra number of e-foldings prior to $N_e\\sim 60$, however such extra e-foldings may make the trans-Planckian problem worse due to the Lyth bound. We show that such extra scalar fields can change the running of the spectral index to give correction of $\\pm 0.01$ without adding significant contribution to the spectral index. The corrections to the spectral index (and the amplitude) could be important in considering global behavior of the corrected spectrum, although they can be neglected in the estimation of the spectrum and its spectral index at the pivot scale. The ambiguity in the running of the spectral index, which could be due to such fields, can be used to nullify tension between BICEP2 and Planck experiments.

  5. High Speed Rail in Japan: A Review and Evaluation of the Shinkansen Train

    E-Print Network [OSTI]

    Taniguchi, Mamoru

    1992-01-01

    ~High Speed R~l $~r~s High Speed Rail in Japan: A Review andorregulation. High Speed Rail in Japan: A Review andCA94720 CALIFORNIA HIGH SPEED RAIL SERIES Working Paper

  6. Figure 3: Surfaces separating at high speed, , showing FECO fringes (top), schematic side-view (middle), and optical microscope view (bottom) of the surfaces. Ho-

    E-Print Network [OSTI]

    Joseph, Daniel D.

    small gas nuclei (Plesset & Prosperetti [1977]). Here we are looking at the situation in which a gas a saturation value; the dissolved gas has condensed into a liquid and the condensed liquid is miscible. Gases dissolved in liquids experience intermolecular forces between liquid and gas molecules. We could think

  7. Approach to accurately measuring the speed of optical precursors

    SciTech Connect (OSTI)

    Li Chuanfeng; Zhou Zongquan; Guo Guangcan; Jeong, Heejeong

    2011-10-15

    Precursors can serve as a bound on the speed of information with dispersive medium. We propose a method to identify the speed of optical wave fronts using polarization-based interference in a solid-state device, which can bound the accuracy of the speed of wave fronts to less than 10{sup -4} with conventional experimental conditions. Our proposal may have important implications for optical communications and fast information processing.

  8. Wave Speed in the Macroscopic Extended Model for Ultrarelativistic Gases

    E-Print Network [OSTI]

    F. Borghero; F. Demontis; S. Pennisi

    2010-12-07

    An exact macroscopic extended model for ultrarelativistic gases, with an arbitrary number of moments, is present in the literature. Here we exploit equations determining wave speeds for that model. We find interesting results; for example, the whole system for their determination can be divided into independent subsystems and some, but not all, wave speeds are expressed by rational numbers. Moreover, the extraordinary property that these wave speeds for the macroscopic model are the same of those in the kinetic model, is proved.

  9. CRYOPUMP MEASUREMENTS RELATING TO SAFETY, PUMPING SPEED, AND RADIATION OUTGASSING

    E-Print Network [OSTI]

    Graham, W.G.

    2011-01-01

    SPEED, AND RADIATION OUTGASSING* William G. Graham andspeeds, and to study outgassing such as might be produced byi w I C" Radiation Outgassing Rad:lation-induced outgassing

  10. Variable Speed Pumping: A Guide to Successful Applications; Executive...

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

    improved reliability, and reduced life cycle costs. Most existing systems requiring flow control make use of bypass lines, throttling valves, or pump speed adjustments. The...

  11. High-Speed, Temperature Programmable Gas Chromatography Utilizing...

    Office of Scientific and Technical Information (OSTI)

    High-Speed, Temperature Programmable Gas Chromatography Utilizing a Microfabricated Chip with an Improved Carbon Nanotube Stationary Phase Citation Details In-Document Search...

  12. New simulation speed record set on Sequoia | National Nuclear...

    National Nuclear Security Administration (NNSA)

    National Laboratory and Rensselaer Polytechnic Institute (RPI) have set a high performance computing speed record that opens the way to the scientific exploration of complex...

  13. Variable current speed controller for eddy current motors

    DOE Patents [OSTI]

    Gerth, H.L.; Bailey, J.M.; Casstevens, J.M.; Dixon, J.H.; Griffith, B.O.; Igou, R.E.

    1982-03-12

    A speed control system for eddy current motors is provided in which the current to the motor from a constant frequency power source is varied by comparing the actual motor speed signal with a setpoint speed signal to control the motor speed according to the selected setpoint speed. A three-phase variable voltage autotransformer is provided for controlling the voltage from a three-phase power supply. A corresponding plurality of current control resistors is provided in series with each phase of the autotransformer output connected to inputs of a three-phase motor. Each resistor is connected in parallel with a set of normally closed contacts of plurality of relays which are operated by control logic. A logic circuit compares the selected speed with the actual motor speed obtained from a digital tachometer monitoring the motor spindle speed and operated the relays to add or substract resistance equally in each phase of the motor input to vary the motor current to control the motor at the selected speed.

  14. Topography of Extracellular Matrix Mediates Vascular Morphogenesis and Migration Speeds

    E-Print Network [OSTI]

    Jiang, Yi

    Topography of Extracellular Matrix Mediates Vascular Morphogenesis and Migration Speeds Amy L Alamos National Laboratory, Los Alamos, New Mexico 1 Corresponding author. Address: Theoretical Division

  15. Scalable, High-Speed Measurement-Based Quantum Computer Using...

    Office of Scientific and Technical Information (OSTI)

    measurement-based quantum computing with trapped ions. Measurement-based architectures offer a way to speed up operation of a quantum computer significantly by parallelizing the...

  16. Boosting the Next Wave of Accelerators: New Technique Speeds...

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

    Boosting Accelerator Design Boosting the Next Wave of Accelerators New Technique Speeds Simulations by up to a Million-fold March 29, 2011 | Tags: Franklin, Nuclear Physics (NP)...

  17. Quantum speed-up transition in open system dynamics

    E-Print Network [OSTI]

    Xiang Hao; Wenjiong Wu

    2015-10-20

    The rate of the trace distance is used to evaluate quantum speed-up for arbitrary mixed states. Compared with some present methods, the approach based on trace distance can provide an optimal bound to the speed of the evolution. The dynamical transition from no speed-up region to speed-up region takes on in the spontaneous decay of an two-level atom with detuning. The evolution is characteristic of the alternating behavior between quantum speed-up and speed-down in the strong system-reservoir coupling regime. Under the o?ff-resonance condition, the dynamical evolution can be accelerated for short previous times and then decelerated to a normal process either in the weak or strong coupling regime. From the time-energy uncertainty relation, we demonstrate that the potential capacity for quantum speed-up evolution is closely related to the energy flow-back from the reservoir to the system. The negative decay rate for short time intervals leads to the speed-up process where the photons previously emitted by the atom are reabsorbed at a later time. The values of the spontaneous decay rate becomes positive after a long enough time, which results in the normal evolution with no speed-up potential.

  18. New process speeds conversion of biomass to fuels

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

    Conversion of Biomass to Fuels New process speeds conversion of biomass to fuels Scientists made a major step forward recently towards transforming biomass-derived molecules into...

  19. Computer support to run models of the atmosphere. Final report

    SciTech Connect (OSTI)

    Fung, I.

    1996-08-30

    This research is focused on a better quantification of the variations in CO{sub 2} exchanges between the atmosphere and biosphere and the factors responsible for these exchangers. The principal approach is to infer the variations in the exchanges from variations in the atmospheric CO{sub 2} distribution. The principal tool involves using a global three-dimensional tracer transport model to advect and convect CO{sub 2} in the atmosphere. The tracer model the authors used was developed at the Goddard institute for Space Studies (GISS) and is derived from the GISS atmospheric general circulation model. A special run of the GCM is made to save high-frequency winds and mixing statistics for the tracer model.

  20. Testing LHT at the LHC Run-II

    E-Print Network [OSTI]

    Cao, Qing-Hong; Liu, Yandong

    2016-01-01

    We study the Littlest Higgs model with T-parity (LHT) in the process of $pp \\to W_H^+W_H^- \\to W^+W^- A_H A_H$ at the 14 TeV LHC. With the $W$-jet tagging technique, we demonstrate that the bulk of the model parameter space can be probed at the level of more than $5\\sigma$ in the signature of two fat $W$-jets plus large missing energy. Furthermore, we propose a novel strategy of measuring the principle parameter $f$ that is crucial to testify the LHT model and to fix mass spectrum, including dark matter particle. Our proposal can be easily incorporated into current experimental program of diboson searches at the LHC Run-II.

  1. Power Systems Development Facility Gasification Test Run TC08

    SciTech Connect (OSTI)

    Southern Company Services

    2002-06-30

    This report discusses Test Campaign TC08 of the Kellogg Brown & Root, Inc. (KBR) Transport Gasifier train with a Siemens Westinghouse Power Corporation (Siemens Westinghouse) particle filter system at the Power Systems Development Facility (PSDF) located in Wilsonville, Alabama. The Transport Gasifier is an advanced circulating fluidized-bed gasifier designed to operate as either a combustor or a gasifier in air- or oxygen-blown mode using a particulate control device (PCD). The Transport Gasifier was operated as a pressurized gasifier in air- and oxygen-blown modes during TC08. Test Run TC08 was started on June 9, 2002 and completed on June 29. Both gasifier and PCD operations were stable during the test run with a stable baseline pressure drop. The oxygen feed supply system worked well and the transition from air to oxygen blown was smooth. The gasifier temperature was varied between 1,710 and 1,770 F at pressures from 125 to 240 psig. The gasifier operates at lower pressure during oxygen-blown mode due to the supply pressure of the oxygen system. In TC08, 476 hours of solid circulation and 364 hours of coal feed were attained with 153 hours of pure oxygen feed. The gasifier and PCD operations were stable in both enriched air and 100 percent oxygen blown modes. The oxygen concentration was slowly increased during the first transition to full oxygen-blown operations. Subsequent transitions from air to oxygen blown could be completed in less than 15 minutes. Oxygen-blown operations produced the highest synthesis gas heating value to date, with a projected synthesis gas heating value averaging 175 Btu/scf. Carbon conversions averaged 93 percent, slightly lower than carbon conversions achieved during air-blown gasification.

  2. The CMSSM and NUHM1 after LHC Run 1

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

    Buchmueller, O.; De Roeck, A.; Cavanaugh, R.; Dolan, M. J.; Ellis, J. R.; Flacher, H.; Heinemeyer, S.; Isidori, G.; Marrouche, J.; Martinez Santos, D.; et al

    2014-06-13

    We analyze the impact of data from the full Run 1 of the LHC at 7 and 8 TeV on the CMSSM with ? > 0 and 0, incorporating the constraints imposed by other experiments such as precision electroweak measurements, flavour measurements, the cosmological density of cold dark matter and the direct search for the scattering of dark matter particles in the LUX experiment. We use the following results from the LHC experiments: ATLAS searches for events with E/T accompanied by jets with the full 7 and 8 TeV data, the ATLASmore »and CMS measurements of the mass of the Higgs boson, the CMS searches for heavy neutral Higgs bosons and a combination of the LHCb and CMS measurements of BR(Bs ? ?+?–) and BR(Bd ? ?+?–). Our results are based on samplings of the parameter spaces of the CMSSM for both ? > 0 and ? 0 with 6.8×106, 6.2×106 and 1.6×107 points, respectively, obtained using the MultiNest tool. The impact of the Higgs-mass constraint is assessed using FeynHiggs 2.10.0, which provides an improved prediction for the masses of the MSSM Higgs bosons in the region of heavy squark masses. It yields in general larger values of Mh than previous versions of FeynHiggs, reducing the pressure on the CMSSM and NUHM1. We find that the global ?2 functions for the supersymmetric models vary slowly over most of the parameter spaces allowed by the Higgs-mass and the E/T searches, with best-fit values that are comparable to the ?2/dof for the best Standard Model fit. As a result, we provide 95% CL lower limits on the masses of various sparticles and assess the prospects for observing them during Run 2 of the LHC.« less

  3. In-situ Sensing Using Mass Spectrometry and its Use for Run-To-Run Control on a W-CVD Cluster Tool

    E-Print Network [OSTI]

    Rubloff, Gary W.

    In-situ Sensing Using Mass Spectrometry and its Use for Run-To-Run Control on a W-CVD Cluster Tool , and E. Zafiriou2 1 Institute for Systems Research and Department of Materials and Nuclear Engineering 2 gases directly from the reactor of an ULVAC ERA-1000 cluster tool has been used for real time process

  4. New Report Shows Trend Toward Larger Offshore Wind Systems, with...

    Office of Environmental Management (EM)

    New Report Shows Trend Toward Larger Offshore Wind Systems, with 11 Advanced Stage Projects Proposed in U.S. Waters New Report Shows Trend Toward Larger Offshore Wind Systems, with...

  5. Geothermal Energy Featured on NBC's Today Show | Department of...

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

    Featured on NBC's Today Show Geothermal Energy Featured on NBC's Today Show November 18, 2008 - 2:49pm Addthis In Iceland, there are five major geothermal power plants which...

  6. New Report Shows Trend Toward Larger Offshore Wind Systems, with...

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

    Report Shows Trend Toward Larger Offshore Wind Systems, with 11 Advanced Stage Projects Proposed in U.S. Waters New Report Shows Trend Toward Larger Offshore Wind Systems, with 11...

  7. Latest Report Shows Cost of Going Solar has Dropped Significantly...

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

    Latest Report Shows Cost of Going Solar has Dropped Significantly for 5 Years Latest Report Shows Cost of Going Solar has Dropped Significantly for 5 Years August 12, 2015 - 2:28pm...

  8. New Report Shows Downward Trend in LCOE for Wind | Department...

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

    Report Shows Downward Trend in LCOE for Wind New Report Shows Downward Trend in LCOE for Wind May 18, 2015 - 2:48pm Addthis A new report recently published by the U.S. Department...

  9. New Report Shows Domestic Offshore Wind Industry Potential, 21...

    Office of Environmental Management (EM)

    Report Shows Domestic Offshore Wind Industry Potential, 21 Projects Planned in U.S. Waters New Report Shows Domestic Offshore Wind Industry Potential, 21 Projects Planned in U.S....

  10. High speed exhaust gas recirculation valve

    DOE Patents [OSTI]

    Fensom, Rod (Peterborough, GB); Kidder, David J. (Peterborough, GB)

    2005-01-18

    In order to minimize pollutants such as Nox, internal combustion engines typically include an exhaust gas recirculation (EGR) valve that can be used to redirect a portion of exhaust gases to an intake conduit, such as an intake manifold, so that the redirected exhaust gases will be recycled. It is desirable to have an EGR valve with fast-acting capabilities, and it is also desirable to have the EGR valve take up as little space as possible. An exhaust gas recirculation valve is provided that includes an exhaust passage tube, a valve element pivotally mounted within the exhaust passage tube, a linear actuator; and a gear train. The gear train includes a rack gear operatively connected to the linear actuator, and at least one rotatable gear meshing with the rack gear and operatively connected to the valve element to cause rotation of the valve element upon actuation of the linear actuator. The apparatus provides a highly compact package having a high-speed valve actuation capability.

  11. High speed point derivative microseismic detector

    DOE Patents [OSTI]

    Uhl, J.E.; Warpinski, N.R.; Whetten, E.B.

    1998-06-30

    A high speed microseismic event detector constructed in accordance with the present invention uses a point derivative comb to quickly and accurately detect microseismic events. Compressional and shear waves impinging upon microseismic receiver stations disposed to collect waves are converted into digital data and analyzed using a point derivative comb including assurance of quiet periods prior to declaration of microseismic events. If a sufficient number of quiet periods have passed, the square of a two point derivative of the incoming digital signal is compared to a trip level threshold exceeding the determined noise level to declare a valid trial event. The squaring of the derivative emphasizes the differences between noise and signal, and the valid event is preferably declared when the trip threshold has been exceeded over a temporal comb width to realize a comb over a given time period. Once a trial event has been declared, the event is verified through a spatial comb, which applies the temporal event comb to additional stations. The detector according to the present invention quickly and accurately detects initial compressional waves indicative of a microseismic event which typically exceed the ambient cultural noise level by a small amount, and distinguishes the waves from subsequent larger amplitude shear waves. 9 figs.

  12. High speed point derivative microseismic detector

    DOE Patents [OSTI]

    Uhl, James Eugene (Albuquerque, NM); Warpinski, Norman Raymond (Albuquerque, NM); Whetten, Ernest Blayne (Albuquerque, NM)

    1998-01-01

    A high speed microseismic event detector constructed in accordance with the present invention uses a point derivative comb to quickly and accurately detect microseismic events. Compressional and shear waves impinging upon microseismic receiver stations disposed to collect waves are converted into digital data and analyzed using a point derivative comb including assurance of quiet periods prior to declaration of microseismic events. If a sufficient number of quiet periods have passed, the square of a two point derivative of the incoming digital signal is compared to a trip level threshold exceeding the determined noise level to declare a valid trial event. The squaring of the derivative emphasizes the differences between noise and signal, and the valid event is preferably declared when the trip threshold has been exceeded over a temporal comb width to realize a comb over a given time period. Once a trial event has been declared, the event is verified through a spatial comb, which applies the temporal event comb to additional stations. The detector according to the present invention quickly and accurately detects initial compressional waves indicative of a microseismic event which typically exceed the ambient cultural noise level by a small amount, and distinguishes the waves from subsequent larger amplitude shear waves.

  13. Motivation Optimization scheme The problem Running conditions Tools Experiments Conclusions Optimizing the execution of a parallel meteorology

    E-Print Network [OSTI]

    Giménez, Domingo

    Motivation Optimization scheme The problem Running conditions Tools Experiments Conclusions 2009 #12;Motivation Optimization scheme The problem Running conditions Tools Experiments Conclusions Contents 1 Motivation 2 Optimization scheme 3 The problem 4 Running conditions 5 Tools 6 Experiments 7

  14. Delta Flow Factors Influencing Stray Rate of Escaping Adult San Joaquin River Fall-Run Chinook Salmon (Oncorhynchus tshawytscha)

    E-Print Network [OSTI]

    2012-01-01

    Escaping Adult San Joaquin River Fall-run Chinook Salmon (comparable with Sacramento River fall-run stray rates (i.e.reported a Mokelumne River wild fall-run Chinook stray rate

  15. High speed flow cytometric separation of viable cells

    DOE Patents [OSTI]

    Sasaki, Dennis T. (Mountain View, CA); Van den Engh, Gerrit J. (Seattle, WA); Buckie, Anne-Marie (Margate, GB)

    1995-01-01

    Hematopoietic cell populations are separated to provide cell sets and subsets as viable cells with high purity and high yields, based on the number of original cells present in the mixture. High-speed flow cytometry is employed using light characteristics of the cells to separate the cells, where high flow speeds are used to reduce the sorting time.

  16. Promising Technology: Magnetic Bearing Variable-Speed Centrifugal Chillers

    Broader source: Energy.gov [DOE]

    Magnetic bearing variable speed centrifugal chillers save energy compared to conventional chillers by eliminating friction with the magnetic bearings and by improving efficiency at partial loads with the variable speed drive. In addition to saving energy, the magnetic bearings eliminate the maintenance costs associated with lubricating conventional metal bearings.

  17. Ris-R-Report LIDAR Wind Speed Measurements from a

    E-Print Network [OSTI]

    Risø-R-Report LIDAR Wind Speed Measurements from a Rotating Spinner: "SpinnerEx 2009" Nikolas: LIDAR wind speed measurements from a rotating spinner (SpinnerEx 2009) Division: Wind Energy Division application of remote sensing techniques in wind energy, the feasibility of upwind observations via a spinner

  18. Structural vibration damping using lightweight, low-wave-speed media

    E-Print Network [OSTI]

    Verdirame, Justin Matthew, 1978-

    2007-01-01

    Incorporation of a low-density, low-wave-speed medium (LWSM) into a structure yields significant damping if the speed of wave propagation in the medium is low enough for standing waves to arise in it. In this thesis, we ...

  19. Wind Speed Modelling and Shortterm Predic tion using Wavelets

    E-Print Network [OSTI]

    Nason, Guy

    prediction of the wind regime at a proposed wind farm site. Suppose a small amount of wind speed data hasWind Speed Modelling and Short­term Predic­ tion using Wavelets Katherine Hunt and Guy P Nason@bristol.ac.uk Abstract The mathematical method of wavelets is explained and used to predict wind condi­ tions using short

  20. Speed Scaling to Manage Temperature Nikhil Bansal Kirk Pruhs y

    E-Print Network [OSTI]

    Bansal, Nikhil

    Speed Scaling to Manage Temperature Nikhil Bansal #3; Kirk Pruhs y Abstract We consider speed effects of removing the cooling fan from a modern processor, see http : ==www:cs:pitt:edu= #24; kirk Computer Science Department, University of Pittsburgh, kirk@cs.pitt.edu. Supported in part by NSF grants

  1. DoubleSpeed Safe Prime Generation David Naccache

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    prime generation is thus divided by two at the cost of generating primes of size k or k + 1 with equalDouble­Speed Safe Prime Generation David Naccache Gemplus Card International Applied Research method for doubling the speed of safe prime generation. The method is particularly suited to settings

  2. Double-Speed Safe Prime Generation David Naccache

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    at the cost of generating primes of size k or k + 1 with equal probability. The generation of RSA moduliDouble-Speed Safe Prime Generation David Naccache Gemplus Card International Applied Research method for doubling the speed of safe prime generation. The method is particularly suited to settings

  3. A HARDWARE ALGORITHM FOR HIGH SPEED MORPHEME EXTRACTION

    E-Print Network [OSTI]

    A HARDWARE ALGORITHM FOR HIGH SPEED MORPHEME EXTRACTION AND ITS IMPLEMENTATION Toshikazu Fukushima- gorithms (Matsumoto, 1986) (Haas, 1987) (Ryt- ter, 1987) -(Fukushima, 1990b) have been pro- posed. However speed-up (Fukushima, 1989b) -(Fukushima, 1990a). This paper describes a new hardware algorithm for high

  4. Probability distributions of land surface wind speeds over North America

    E-Print Network [OSTI]

    Dai, Aiguo

    Probability distributions of land surface wind speeds over North America Yanping He,1 Adam Hugh of the probability distributions of surface wind speeds (SWS) is essential for surface flux estimation, wind power estimation, and wind risk assessments. The two-parameter Weibull distribution is the most widely used

  5. New AES software speed records Daniel J. Bernstein1

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    New AES software speed records Daniel J. Bernstein1 and Peter Schwabe2 1 Department of Computer, Netherlands peter@cryptojedi.org Abstract. This paper presents new speed records for AES software, taking microarchitectures. Keywords: AES, software implementation 1 Introduction This paper describes a new AES software

  6. A Proposal for Data Collection: Establishing Pedestrian Walking Speeds

    E-Print Network [OSTI]

    Bertini, Robert L.

    A Proposal for Data Collection: Establishing Pedestrian Walking Speeds Submitted to: Karen Aspelin on Uniform Traffic Control Devices (MUTCD) currently recommends that a normal pedestrian walking speed of 4 ft/sec be used to set the pedestrian clearance interval for a signalized intersection. The MUTCD

  7. Aalborg Universitet Switching speed limitations of high power IGBT modules

    E-Print Network [OSTI]

    Munk-Nielsen, Stig

    of the total power loss. Therefore, by design, it is critical that switching losses are reduced to a minimumAalborg Universitet Switching speed limitations of high power IGBT modules Incau, Bogdan Ioan.aau.dk on: november 29, 2015 #12;Switching speed limitations of high power IGBT modules Bogdan Ioan Incau

  8. Sandia Energy - New Material Tests Show Biaxial Laminate Creep...

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

    Material Tests Show Biaxial Laminate Creep Is Important for Large Wind-Turbine Blades Home Renewable Energy Energy Partnership News Wind Energy News & Events New Material Tests...

  9. ORISE: Report shows nuclear engineering graduation rates leveling...

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

    ORISE report shows nuclear engineering graduation rates leveling off in 2014 after five years of increase Decline seen in undergraduate and master degrees, while number of doctoral...

  10. ORISE: Report shows nuclear engineering graduation rates on the...

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

    ORISE report shows nuclear engineering graduation rates on the rise in 2013 Number of graduate degrees expected to remain consistent, but undergraduate degrees could see decrease...

  11. SLIDESHOW: Secretary Moniz Tours 2014 Washington Auto Show

    Broader source: Energy.gov [DOE]

    A slideshow featuring highlights from Secretary Moniz's tour of the 2014 Washington Auto Show is currently posted on the Energy Department's blog.

  12. NREL: Technology Transfer - New Video Shows How NREL Is Redefining...

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

    New Video Shows How NREL Is Redefining What's Possible for Renewable Energy Through Grid Integration January 23, 2015 NREL is spearheading engineering innovations that will help...

  13. Sandia Energy - Biofuels Blend Right In: Researchers Show Ionic...

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

    Biofuels Blend Right In: Researchers Show Ionic Liquids Effective for Pretreating Mixed Blends of Biofuel Feedstocks Home Renewable Energy Energy Transportation Energy Biofuels...

  14. Lower Three Runs Remediation Safety Preparation Strategy - 13318

    SciTech Connect (OSTI)

    Mackay, Alexander; Fryar, Scotty; Doane, Alan [United States Department of Energy, Building 730-B, Aiken, SC 29808 (United States)] [United States Department of Energy, Building 730-B, Aiken, SC 29808 (United States)

    2013-07-01

    The Savannah River Site (SRS) is a 310-square-mile United States Department of Energy (US DOE) nuclear facility located along the Savannah River near Aiken, South Carolina that contains six primary stream/river systems. The Lower Three Runs Stream (LTR) is one of the primary streams within the site that is located in the southeast portion of the Savannah River Site. It is a large blackwater stream system that originates in the northeast portion of SRS and follows a southerly direction before it enters the Savannah River. During reactor operations, secondary reactor cooling water, storm sewer discharges, and miscellaneous wastewater was discharged and contaminated a 20 mile stretch of Lower Three Runs Stream that narrows and provides a limited buffer of US DOE property along the stream and flood-plain. Based on data collected during the years 2009 and 2010 under American Recovery and Re-investment Act funding, the stream was determined to be contaminated with cesium-137 at levels that exceeded acceptable risk based limits. In agreement with the Environmental Protection Agency and the South Carolina Department of Health and Environmental Control, three areas were identified for remediation [1] (SRNS April 2012). A comprehensive safety preparation strategy was developed for safe execution of the LTR remediation project. Contract incentives for safety encouraged the contractor to perform a complete evaluation of the work and develop an implementation plan to perform the work. The safety coverage was controlled to ensure all work was observed and assessed by one person per work area within the project. This was necessary due to the distances between the fence work and three transects being worked, approximately 20 miles. Contractor Management field observations were performed along with DOE assessments to ensure contractor focus on safe performance of the work. Dedicated ambulance coverage for remote worker work activities was provided. This effort was augmented with access to medical evacuation services. The areas where the work was performed were remote and difficult to get emergency vehicles to in a timely manner in case of an accident. Satellite phones were utilized due to intermittent phone coverage. High visibility vests were utilized to enable any hunters in the area to see the workers; due to the limited buffer areas along the stream route. An innovative approach to providing the necessary protection for workers during periods of extreme heat and humidity was also employed, which included the use of 'heat islands' with fans and crew trailers and ice vests for workers. (authors)

  15. Averaging top quark results in Run 2 M. Strovink

    E-Print Network [OSTI]

    Strovink, Mark

    average (cont'd) The pie chart shows the relative weights of the five input measurements in the world

  16. Method for compression of data using single pass LZSS and run-length encoding

    DOE Patents [OSTI]

    Berlin, G.J.

    1994-01-01

    A method used preferably with LZSS-based compression methods for compressing a stream of digital data. The method uses a run-length encoding scheme especially suited for data strings of identical data bytes having large run-lengths, such as data representing scanned images. The method reads an input data stream to determine the length of the data strings. Longer data strings are then encoded in one of two ways depending on the length of the string. For data strings having run-lengths less than 18 bytes, a cleared offset and the actual run-length are written to an output buffer and then a run byte is written to the output buffer. For data strings of 18 bytes or longer, a set offset and an encoded run-length are written to the output buffer and then a run byte is written to the output buffer. The encoded run-length is written in two parts obtained by dividing the run length by a factor of 255. The first of two parts of the encoded run-length is the quotient; the second part is the remainder. Data bytes that are not part of data strings of sufficient length are written directly to the output buffer.

  17. Method for compression of data using single pass LZSS and run-length encoding

    DOE Patents [OSTI]

    Berlin, G.J.

    1997-12-23

    A method used preferably with LZSS-based compression methods for compressing a stream of digital data is disclosed. The method uses a run-length encoding scheme especially suited for data strings of identical data bytes having large run-lengths, such as data representing scanned images. The method reads an input data stream to determine the length of the data strings. Longer data strings are then encoded in one of two ways depending on the length of the string. For data strings having run-lengths less than 18 bytes, a cleared offset and the actual run-length are written to an output buffer and then a run byte is written to the output buffer. For data strings of 18 bytes or longer, a set offset and an encoded run-length are written to the output buffer and then a run byte is written to the output buffer. The encoded run-length is written in two parts obtained by dividing the run length by a factor of 255. The first of two parts of the encoded run-length is the quotient; the second part is the remainder. Data bytes that are not part of data strings of sufficient length are written directly to the output buffer. 3 figs.

  18. Method for compression of data using single pass LZSS and run-length encoding

    DOE Patents [OSTI]

    Berlin, Gary J. (Beech Island, SC)

    1997-01-01

    A method used preferably with LZSS-based compression methods for compressing a stream of digital data. The method uses a run-length encoding scheme especially suited for data strings of identical data bytes having large run-lengths, such as data representing scanned images. The method reads an input data stream to determine the length of the data strings. Longer data strings are then encoded in one of two ways depending on the length of the string. For data strings having run-lengths less than 18 bytes, a cleared offset and the actual run-length are written to an output buffer and then a run byte is written to the output buffer. For data strings of 18 bytes or longer, a set offset and an encoded run-length are written to the output buffer and then a run byte is written to the output buffer. The encoded run-length is written in two parts obtained by dividing the run length by a factor of 255. The first of two parts of the encoded run-length is the quotient; the second part is the remainder. Data bytes that are not part of data strings of sufficient length are written directly to the output buffer.

  19. Solar wind suprathermal electron Stahl widths across high-speed stream structures

    SciTech Connect (OSTI)

    Skoug, Ruth M [Los Alamos National Laboratory; Steinberg, John T [Los Alamos National Laboratory; Goodrich, Katherine A [Los Alamos National Laboratory; Anderson, Brett R [DARTMUTH UNIV.

    2011-01-03

    Suprathermal electrons (100-1500 eV) observed in the solar wind typically show a strahl distribution, that is, a beam directed away from the Sun along the magnetic field direction. The strahl width observed at 1 AU is highly variable, ranging from 10-70 degrees. The obsenred finite width of the strahl results from the competition between beam focusing as the interplanetary magnetic field strength drops with distance from the Sun, and pitch-angle scattering as the beam interacts with the solar wind plasma in transit from the sun. Here we examine strahl width, observed with ACE SWEPAM across high-speed stream structures to investigate variations in electron scattering as a function of local plasma characteristics. We find that narrow strahls (less than 20 degrees wide), indicating reduced scattering, are observed within high-speed streams. Narrow strahls are also observed in both very low temperature solar wind, in association with ICMEs. Case studies of high-speed streams typically show the strahl narrowing at the leading edge of the stream. In some cases, the strahl narrows at the reverse shock or pressure wave, in other cases at the stream interface. The narrowing can either occur discontinuously or gradually over a period of hours. Within the high-speed wind, the strahl remains narrow for a period of hours to days, and then gradually broadens. The strahl width is roughly constant at all energies across these structures. For some fraction of high-speed streams, counterstreaming is associated with passage of the corotating interaction region. In these cases, we find the widths of the two counterstreaming beams frequently differ by more than 40 degrees. This dramatic difference in strahl width contrasts with observations in the solar wind as a whole, in which counterstreaming strahls typically differ in width by less than 20 degrees.

  20. Ancient bacteria show evidence of DNA repair Sarah Stewart Johnson*

    E-Print Network [OSTI]

    Nielsen, Rasmus

    Ancient bacteria show evidence of DNA repair Sarah Stewart Johnson* , Martin B. Hebsgaard , Torben for review June 14, 2007) Recent claims of cultivable ancient bacteria within sealed environ- ments highlight-term survival of bacteria sealed in frozen conditions for up to one million years. Our results show evidence

  1. (25) 1. Show that for all sets A and B,

    E-Print Network [OSTI]

    (15) 2 . (a) Show that for all sets A and B,. (A; u @(B) 5- @(AvB). (15) (b) Show b constru tin a counter exam 1e that it is not. Y 6% g P the case that (AU B) c @(A) ...

  2. Assessing Benefits in Vehicle Speed and Lateral Position when Chevrons with Full Retroreflective Sign Posts are Implemented on Rural Horizontal Curves 

    E-Print Network [OSTI]

    Re, Jonathan M.

    2010-01-16

    with no vertical delineation, a standard Chevron evaluation, and an experimental ChevFull treatment evaluation. Data collection measured vehicle speed and lateral position data at the point of curvature and mid-point on two separate curves. Findings showed...

  3. Test Run Report of the P348 Collaboration

    E-Print Network [OSTI]

    Gninenko, S N

    2015-01-01

    The P348 Collaboration preformed test measurements in the H4 SPS beam line during a period of 2 weeks in September-October. The measurements were designed with two main objectives. The first was to test the new detector components such as Micromegas and straw tube tracker, high-energy electron tagging system, ECAL, and HCAL. The second was to explore the feasibility of searching for invisible decays of dark photons in the sub- GeV mass range. Here we report various results of the test measurements. The main outcome of the run is that by using simple selection criteria, without good track definition, we reject background in the signal region down to the level of a few ×10^?8 per incident electron. As we do not see any other issues that represent fundamental problems for the experiment, our conclusion is that after small modifications the P348 detector is ready to start data taking in the year 2016. We recall that the A‘ with a mass in sub-GeV range is still one of the favorable explanation of the muon g-2...

  4. ATLAS Jet Trigger Update for the LHC Run II

    E-Print Network [OSTI]

    Tavares Delgado, Ademar; The ATLAS collaboration

    2015-01-01

    The CERN Large Hadron Collider is the biggest and most powerful particle collider ever built. It produces up to 40 million proton-proton collisions per second at unprecedented energies to explore the fundamental laws and properties of Nature. The ATLAS experiment is one of the detectors that analyses and records these collisions. It generates dozens of GB/s of data that has to be reduced before it can be permanently stored, the event selection is made by the ATLAS trigger system, which reduces the data volume by a factor of 10^5 . The trigger system has to be highly configurable in order to adapt to changing running conditions and maximize the physics output whilst keeping the output rate under control. A particularly interesting pattern generated during collisions consists of a collimated spray of particles, known as a hadronic jet. To retain the interesting jets and efficiently reject the overwhelming background, optimal jet energy resolution is needed. Therefore the Jet trigger software requires CPU-intens...

  5. Recent program evaluations: Implications for long-run planning

    SciTech Connect (OSTI)

    Baxter, L.W.; Schultz, D.K.

    1994-06-08

    Demand-side management (DSM) remains the centerpiece of California`s energy policy. Over the coming decade, California plans to meet 30 percent of the state`s incremental electricity demand and 50 percent of its peak demand with (DSM) programs. The major investor-owned utilities in California recently completed the first round of program impact studies for energy efficiency programs implemented in 1990 and 1991. The central focus of this paper is to assess the resource planning and policy implications of Pacific Gas and Electric (PG&E) Company`s recent program evaluations. The paper has three goals. First, we identify and discuss major issues that surfaced from our attempt to apply evaluation results to forecasting and planning questions. Second, we review and summarize the evaluation results for PG&E`s primary energy efficiency programs. Third, we change long-run program assumptions, based on our assessment in the second task, and then examine the impacts of these changes on a recent PG&E demand-side management forecast and resource plan.

  6. Wind speed modeled as a semi-Markov process with memory

    E-Print Network [OSTI]

    D'Amico, Guglielmo; Prattico, Flavio

    2012-01-01

    The increasing interest in renewable energy, particularly in wind, has given rise to the necessity of accurate models for the generation of good synthetic wind speed data. Markov chains are often used with this purpose but better models are needed to reproduce the statistical properties of wind speed data. In a previous paper we showed that semi-Markov processes are more appropriate for this purpose but to reach an accurate reproduction of real data features high order model should be used. In this work we introduce an indexed semi-Markov process that is able to fit real data. We downloaded a database, freely available from the web, in which are included wind speed data taken from L.S.I. -Lastem station (Italy) and sampled every 10 minutes. We then generate synthetic time series for wind speed by means of Monte Carlo simulations. The time lagged autocorrelation is then used to compare statistical properties of the proposed model with those of real data and also with a synthetic time series generated though a ...

  7. A preliminary evaluation of a speed threshold incident detection algorithm 

    E-Print Network [OSTI]

    Kolb, Stephanie Lang

    1996-01-01

    and California algorithm #8 using Fuzzy Logic to evaluate the new algorithm's effectiveness in detecting incidents on freeways. To test these algorithms, real data from TransGuide were run through the algorithms. Algorithm output were compared with CCTV (closed...

  8. Multi-Terabyte EIDE Disk Arrays running Linux RAID5

    E-Print Network [OSTI]

    D. A. Sanders; L. M. Cremaldi; V. Eschenburg; R. Godang; M. D. Joy; D. J. Summers; D. L. Petravick

    2004-11-19

    High-energy physics experiments are currently recording large amounts of data and in a few years will be recording prodigious quantities of data. New methods must be developed to handle this data and make analysis at universities possible. Grid Computing is one method; however, the data must be cached at the various Grid nodes. We examine some storage techniques that exploit recent developments in commodity hardware. Disk arrays using RAID level 5 (RAID-5) include both parity and striping. The striping improves access speed. The parity protects data in the event of a single disk failure, but not in the case of multiple disk failures. We report on tests of dual-processor Linux Software RAID-5 arrays and Hardware RAID-5 arrays using a 12-disk 3ware controller, in conjunction with 250 and 300 GB disks, for use in offline high-energy physics data analysis. The price of IDE disks is now less than $1/GB. These RAID-5 disk arrays can be scaled to sizes affordable to small institutions and used when fast random access at low cost is important.

  9. Biological Monitoring at Amchitka Appears to Show Impacts from...

    Office of Environmental Management (EM)

    of the monitoring showed that Dolly Varden (a type of freshwater char, a trout-like fish), rockweed (littoral-zone algae), and to a lesser extent, Irish Lord (a small...

  10. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

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

    Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Print Movement is fundamental to life. It takes place even at the cellular level where cargo is continually being transported...

  11. New Report Shows Trend Toward Larger Offshore Wind Systems

    Broader source: Energy.gov [DOE]

    The Energy Department released a new report showing progress for the U.S. offshore wind energy market in 2012, including 11 commercial-scale U.S. projects reaching an advanced stage of development.

  12. Appointment Scheduling under Patient Preference and No-Show Behavior

    E-Print Network [OSTI]

    Topaloglu, Huseyin

    and managing per capita cost of care; see Berwick et al. (2008) and Institute for Healthcare Improvement (2012. The service provider collects a "revenue" from each patient who shows up and incurs a "service cost

  13. Does Roush show that evidence should be probable?

    E-Print Network [OSTI]

    Fennell, Damien; Cartwright, Nancy

    2010-01-01

    DOI 10.1007/s11229-009-9510-3 Does Roush show that evidencecondition. However, he does not adopt a condition similar toprovide leverage. She does not want P(h) to be presupposed

  14. Secretary Chu Speaks at the 2010 Washington Auto Show

    Broader source: Energy.gov [DOE]

    at the 2010 Washington Auto Show, Secretary Chu lays out a roadmap for how the U.S. can lead the world in making the clean vehicles we need. He also announced that the Department of Energy had...

  15. Global Climate Change Assessment Report Shows Nations Not Doing...

    Open Energy Info (EERE)

    Global Climate Change Assessment Report Shows Nations Not Doing Enough Home > Blogs > Dc's blog Dc's picture Submitted by Dc(266) Contributor 5 November, 2014 - 15:49 The latest...

  16. Boron-Nitride Nanotubes Show Potential in Cancer Treatment |...

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

    Boron-Nitride Nanotubes Show Potential in Cancer Treatment NEWPORT NEWS, VA, April 26 - A new study has shown that adding boron-nitride nanotubes to the surface of cancer cells can...

  17. The Chemistry Magic Show Captivates Kids | GE Global Research

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

    Chemistry Magic Show Captivates Kids Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new window) Click to share (Opens in new window) Click to...

  18. ORISE: Report shows number of health physics degrees for 2010

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

    report shows number of health physics degrees increased for graduates, decreased for undergraduates in 2010 Decreased number of B.S. degrees remains higher than levels in the early...

  19. The Importance of Run-time Error Detection Glenn R. Luecke 1

    E-Print Network [OSTI]

    Luecke, Glenn R.

    Iowa State University's High Performance Computing Group, Iowa State University, Ames, Iowa 50011, USA State University's High Performance Computing Group for evaluating run-time error detection capabilities

  20. Students Share Experiences from First Run of BioenergizeME Virtual...

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

    website links through the BioenergizeME Virtual Science Fair map. Last week concluded the beta run of the Bioenergy Technologies Office (BETO) sponsored BioenergizeME Virtual...

  1. Engine control system having speed-based timing

    DOE Patents [OSTI]

    Willi, Martin L. (Dunlap, IL); Fiveland, Scott B. (Metamora, IL); Montgomery, David T. (Edelstein, IL); Gong, Weidong (Dunlap, IL)

    2012-02-14

    A control system for an engine having a cylinder is disclosed having an engine valve movable to regulate a fluid flow of the cylinder and an actuator associated with the engine valve. The control system also has a controller in communication with the actuator. The controller is configured to receive a signal indicative of engine speed and compare the engine speed signal with a desired engine speed. The controller is also configured to selectively regulate the actuator to adjust a timing of the engine valve to control an amount of air/fuel mixture delivered to the cylinder based on the comparison.

  2. Critical speed measurements in the Tevatron cold compressors

    SciTech Connect (OSTI)

    DeGraff, B.; Bossert, R.; Martinez, A.; Soyars, W.M.; /Fermilab

    2006-01-01

    The Fermilab Tevatron cryogenic system utilizes high-speed centrifugal cold compressors, manufactured by Ishikawajima-Harima Heavy Industries Co. Ltd. (IHI), for high energy operations. Nominal operating range for these compressors is 43,000 to 85,000 rpm. Past foil bearing failures prompted investigation to determine if critical speeds for operating compressors fall within operating range. Data acquisition hardware and software settings will be discussed for measuring liftoff, first critical and second critical speeds. Several tests provided comparisons between an optical displacement probe and accelerometer measurements. Vibration data and analysis of the 20 Tevatron ring cold compressors will be presented.

  3. Power Systems Development Facility Gasification Test Run TC07

    SciTech Connect (OSTI)

    Southern Company Services

    2002-04-05

    This report discusses Test Campaign TC07 of the Kellogg Brown & Root, Inc. (KBR) Transport Reactor train with a Siemens Westinghouse Power Corporation (Siemens Westinghouse) particle filter system at the Power Systems Development Facility (PSDF) located in Wilsonville, Alabama. The Transport Reactor is an advanced circulating fluidized-bed reactor designed to operate as either a combustor or a gasifier using a particulate control device (PCD). The Transport Reactor was operated as a pressurized gasifier during TC07. Prior to TC07, the Transport Reactor was modified to allow operations as an oxygen-blown gasifier. Test Run TC07 was started on December 11, 2001, and the sand circulation tests (TC07A) were completed on December 14, 2001. The coal-feed tests (TC07B-D) were started on January 17, 2002 and completed on April 5, 2002. Due to operational difficulties with the reactor, the unit was taken offline several times. The reactor temperature was varied between 1,700 and 1,780 F at pressures from 200 to 240 psig. In TC07, 679 hours of solid circulation and 442 hours of coal feed, 398 hours with PRB coal and 44 hours with coal from the Calumet mine, and 33 hours of coke breeze feed were attained. Reactor operations were problematic due to instrumentation problems in the LMZ resulting in much higher than desired operating temperatures in the reactor. Both reactor and PCD operations were stable and the modifications to the lower part of the gasifier performed well while testing the gasifier with PRB coal feed.

  4. DIRECT REGULATION OF LARGE SPEED EXCURSIONS FOR VARIABLE SPEED WIND W. E. Leithead, D. J. Leith, F. Hardan, H.Markou

    E-Print Network [OSTI]

    Duffy, Ken

    DIRECT REGULATION OF LARGE SPEED EXCURSIONS FOR VARIABLE SPEED WIND TURBINES W. E. Leithead, D. J turbine aims to maintain the rotor speed within a permitted range. However, this requirement can of a pitch controller for 1 MW variable speed turbine which directly responds to a strong gust by pitching

  5. Experimental and numerical study of the accuracy of flame-speed measurements for methane/air combustion in a slot burner

    SciTech Connect (OSTI)

    Selle, L.; Ferret, B. [Universite de Toulouse, INPT, UPS, IMFT, Institut de Mecanique des Fluides de Toulouse (France); CNRS, IMFT, Toulouse (France); Poinsot, T. [Universite de Toulouse, INPT, UPS, IMFT, Institut de Mecanique des Fluides de Toulouse (France); CNRS, IMFT, Toulouse (France); CERFACS, Toulouse (France)

    2011-01-15

    Measuring the velocities of premixed laminar flames with precision remains a controversial issue in the combustion community. This paper studies the accuracy of such measurements in two-dimensional slot burners and shows that while methane/air flame speeds can be measured with reasonable accuracy, the method may lack precision for other mixtures such as hydrogen/air. Curvature at the flame tip, strain on the flame sides and local quenching at the flame base can modify local flame speeds and require corrections which are studied using two-dimensional DNS. Numerical simulations also provide stretch, displacement and consumption flame speeds along the flame front. For methane/air flames, DNS show that the local stretch remains small so that the local consumption speed is very close to the unstretched premixed flame speed. The only correction needed to correctly predict flame speeds in this case is due to the finite aspect ratio of the slot used to inject the premixed gases which induces a flow acceleration in the measurement region (this correction can be evaluated from velocity measurement in the slot section or from an analytical solution). The method is applied to methane/air flames with and without water addition and results are compared to experimental data found in the literature. The paper then discusses the limitations of the slot-burner method to measure flame speeds for other mixtures and shows that it is not well adapted to mixtures with a Lewis number far from unity, such as hydrogen/air flames. (author)

  6. Invitation to our Design Trade Show Managing New Product Design: Design Theory and Methods

    E-Print Network [OSTI]

    Agogino, Alice M.

    ­ For those design researchers seeking collaboration, we provide a platform to generate that is activated by changes in car speed. 7. Ergonomic Laptop Case ­ A laptop case

  7. High speed imaging of transient non-Newtonian fluid phenomena

    E-Print Network [OSTI]

    Gallup, Benjamin H. (Benjamin Hodsdon), 1982-

    2004-01-01

    In this thesis, I investigate the utility of high speed imaging for gaining scientific insight into the nature of short-duration transient fluid phenomena, specifically applied to the Kaye effect. The Kaye effect, noted ...

  8. Information Processing in Multiple Sclerosis: Accuracy versus Speed

    E-Print Network [OSTI]

    Steiger, Katherine Anne

    2007-12-27

    Previous research has suggested that slowed speed of information processing is the primary cognitive impairment that occurs in multiple sclerosis (MS). The proposed study employed multiple cognitive measures to replicate these findings. Individuals...

  9. Information processing speed and attention in multiple sclerosis

    E-Print Network [OSTI]

    Roth, Alexandra K.

    2013-05-31

    Information processing speed is frequently recognized as the primary cognitive impairment in multiple sclerosis (MS). Recent studies have also reported attention deficits in MS patients compared to healthy controls based on the Attention Network...

  10. Wave speeds in the macroscopic extended model for ultrarelativistic gases

    SciTech Connect (OSTI)

    Borghero, F.; Demontis, F.; Pennisi, S.

    2013-11-15

    Equations determining wave speeds for a model of ultrarelativistic gases are investigated. This model is already present in literature; it deals with an arbitrary number of moments and it was proposed in the context of exact macroscopic approaches in Extended Thermodynamics. We find these results: the whole system for the determination of the wave speeds can be divided into independent subsystems which are expressed by linear combinations, through scalar coefficients, of tensors all of the same order; some wave speeds, but not all of them, are expressed by square roots of rational numbers; finally, we prove that these wave speeds for the macroscopic model are the same of those furnished by the kinetic model.

  11. VHISPER: a high speed dual mode VLIW and Superscalar Processor 

    E-Print Network [OSTI]

    Mellacheruvu, Rajesh Kumar

    1994-01-01

    Considerable effort has gone into streamlining the logic in pipelined processors. Further Increases in speed for a pipelined processor will probably come about from. either increasing the pipeline depth, superpipelining or increasing the width...

  12. Rotary-linear axes for high speed machining

    E-Print Network [OSTI]

    Liebman, Michael Kevin, 1974-

    2001-01-01

    This thesis presents the design, analysis, fabrication, and control of a rotary-linear axis; this axis is a key subsystem for high speed, 5-axis machine tools intended for fabricating centimeter-scale parts. The rotary-linear ...

  13. Atomization of a High Speed Jet Zhiliang Xu

    E-Print Network [OSTI]

    New York at Stoney Brook, State University of

    in 2D. The high speed flow in the nozzle gives rise to cavitation, i.e. a mixed liquid-vapor region, i.e. jet breakup and spray formation, are a challenge to modern hydrodynamics. To predict jet

  14. The effect of rainfall on freeway travel speeds 

    E-Print Network [OSTI]

    Holdener, Douglas Joseph

    1997-01-01

    Studies on the effect of rainfall on freeway capacity found that capacity during wet conditions was 8 percent to 24 percent lower than average capacity during dry conditions. Based on these findings, Greenshield's speed-flow model was calibrated...

  15. Speeding up Parallel Graph Coloring Assefaw H. Gebremedhin1,

    E-Print Network [OSTI]

    Manne, Fredrik

    Speeding up Parallel Graph Coloring Assefaw H. Gebremedhin1, , Fredrik Manne2 , and Tom Woods2 1. Gebremedhin, Fredrik Manne, and Tom Woods However, in practice greedy sequential coloring heuristics have been

  16. Effect of shrink fits on threshold speeds of rotordynamic instability 

    E-Print Network [OSTI]

    Al-Baz, Khalid A

    2001-01-01

    The purpose of this thesis is to study the effect of shrink fits on the threshold speeds of rotor instability. Shrink or press fit components in built-up rotors are known sources of internal friction damping. The internal ...

  17. Time-dependent Hamiltonians with 100% evolution speed efficiency

    E-Print Network [OSTI]

    Raam Uzdin; Uwe Guenther; Saar Rahav; Nimrod Moiseyev

    2012-07-23

    The evolution speed in projective Hilbert space is considered for Hermitian Hamiltonians and for non-Hermitian (NH) ones. Based on the Hilbert-Schmidt norm and the spectral norm of a Hamiltonian, resource-related upper bounds on the evolution speed are constructed. These bounds are valid also for NH Hamiltonians and they are illustrated for an optical NH Hamiltonian and for a non-Hermitian $\\mathcal{PT}-$symmetric matrix Hamiltonian. Furthermore, the concept of quantum speed efficiency is introduced as measure of the system resources directly spent on the motion in the projective Hilbert space. A recipe for the construction of time-dependent Hamiltonians which ensure 100% speed efficiency is given. Generally these efficient Hamiltonians are NH but there is a Hermitian efficient Hamiltonian as well. Finally, the extremal case of a non-Hermitian non-diagonalizable Hamiltonian with vanishing energy difference is shown to produce a 100% efficient evolution with minimal resources consumption.

  18. A high-speed hysteresis motor spindle for machining applications

    E-Print Network [OSTI]

    Bayless, Jacob D. (Jacob Daniel)

    2014-01-01

    An analysis of suitable drive technologies for use in a new high-speed machining spindle was performed to determine critical research areas. The focus is on a hysteresis motor topology using a solid, inherently-balanced ...

  19. Adjustable Speed Drives as Applied to Centrifugal Pumps 

    E-Print Network [OSTI]

    Jarc, D. A.; Robechek, J. D.; Connors, D. P.

    1982-01-01

    of flow control is required. The traditional approach to flow control has used valves which increase system pressure and inherently waste energy and generally cause the pump to operate at reduced efficiencies. Adjustable speed drives can achieve reduced...

  20. High-Speed Network Enables Industrial Internet | GE Global Research

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

    Infrastructure to Connect Machines, Data and People at Light Speed to the Industrial Internet Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new...

  1. Optical system for high-speed Atomic Force Microscope

    E-Print Network [OSTI]

    Lim, Kwang Yong, S.M. Massachusetts Institute of Technology

    2010-01-01

    This thesis presents the design and development of an optical cantilever deflection sensor for a high speed Atomic Force Microscope (AFM). This optical sensing system is able to track a small cantilever while the X-Y scanner ...

  2. Method and system for determining induction motor speed

    DOE Patents [OSTI]

    Parlos, Alexander G.; Bharadwaj, Raj M.

    2004-03-30

    A non-linear, semi-parametric neural network-based adaptive filter is utilized to determine the dynamic speed of a rotating rotor within an induction motor, without the explicit use of a speed sensor, such as a tachometer, is disclosed. The neural network-based filter is developed using actual motor current measurements, voltage measurements, and nameplate information. The neural network-based adaptive filter is trained using an estimated speed calculator derived from the actual current and voltage measurements. The neural network-based adaptive filter uses voltage and current measurements to determine the instantaneous speed of a rotating rotor. The neural network-based adaptive filter also includes an on-line adaptation scheme that permits the filter to be readily adapted for new operating conditions during operations.

  3. In many cases, tsunami waveheights and effects show a high variability along the coast. The possible causes are insecurities about the tectonic

    E-Print Network [OSTI]

    Al Hanbali, Ahmad

    In many cases, tsunami waveheights and effects show a high variability along the coast area in propagation direction of a tsunami wave can produce largely amplified waves by near coast tsunami waveguiding, see [1]. The waveguiding is caused by the fact that different propagation speeds

  4. Thermal expansion of the earth and the speed of neutrinos

    E-Print Network [OSTI]

    C. S. Unnikrishnan

    2011-10-04

    It is pointed out that one of the systematic effects that can affect the measurement of the speed of neutrinos significantly is the variability of the unaveraged measurement of the distance between two points on the earth due to thermal expansion. Possible difference between estimates done with surface GPS apparatus and the true underground baseline can change substantially the statistical significance of the result of superluminal speed of neutrinos, reported recently.

  5. Show No Weakness: Sequentially Consistent Specifications of TSO Libraries

    E-Print Network [OSTI]

    Gotsman, Alexey

    Show No Weakness: Sequentially Consistent Specifications of TSO Libraries Alexey Gotsman1.g., for those that are data-race free (DRF). However, performance-critical libraries often violate, it is important for these libraries to protect their otherwise well-behaved clients from the weaker memory model

  6. New World cattle show ancestry from multiple independent domestication events

    E-Print Network [OSTI]

    Hillis, David

    New World cattle show ancestry from multiple independent domestication events Emily Jane Mc December 17, 2012) Previous archeological and genetic research has shown that modern cattle breeds in taurine and indicine lines of cattle, respectively. American descendants of cattle brought by European

  7. ORIGINAL ARTICLE Isolation of Enterobacter cowanii from Eucalyptus showing

    E-Print Network [OSTI]

    ORIGINAL ARTICLE Isolation of Enterobacter cowanii from Eucalyptus showing symptoms of bacterial Eucalyptus grandis trees in Uruguay commonly exhibit symptoms of leaf blight and dieback disease. The cause ananatis, the causal agent of bacterial blight and dieback on Eucalyptus in South Africa (Coutin- ho et al

  8. Schematic structure of nitrogen-doped graphene showing carbon

    E-Print Network [OSTI]

    Gong, Jian Ru

    method for graphene doping, and is compatible with current complementary metal oxide semiconductor (CMOSSchematic structure of nitrogen- doped graphene showing carbon (gray) and nitrogen (blue) NPG Asia Materials research highlight | doi:10.1038/asiamat.2010.204 Published online 13 December 2010 Graphene

  9. Risk Management of Student-Run Small Satellite Programs Elizabeth Deems

    E-Print Network [OSTI]

    1 Risk Management of Student-Run Small Satellite Programs by Elizabeth Deems Submitted;3 Risk Management of Student-Run Small Satellite Programs by Elizabeth Deems Submitted to the Department are also discussed. Additionally, several risk management strategies are explored, and the advantages

  10. EXTREME WAVE RUN-UP ON A VERTICAL CLIFF FRANCESCO CARBONE, DENYS DUTYKH

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    EXTREME WAVE RUN-UP ON A VERTICAL CLIFF FRANCESCO CARBONE, DENYS DUTYKH , JOHN M. DUDLEY, AND FR´ED´ERIC DIAS Abstract. Wave impact and run-up onto vertical obstacles are among the most impor- tant phenomena which must be taken into account in the design of coastal structures. From linear wave theory, we know

  11. EXTREME WAVE RUN-UP ON A VERTICAL CLIFF FRANCESCO CARBONE, DENYS DUTYKH

    E-Print Network [OSTI]

    Boyer, Edmond

    EXTREME WAVE RUN-UP ON A VERTICAL CLIFF FRANCESCO CARBONE, DENYS DUTYKH , JOHN M. DUDLEY, AND FR´ED´ERIC DIAS Abstract. Wave impact and run-up onto vertical obstacles constitutes one of the main phenomena which have to be taken into account in the design of coastal structures. From the linear wave theory we

  12. EXTREME WAVE RUN-UP ON A VERTICAL CLIFF FRANCESCO CARBONE, DENYS DUTYKH

    E-Print Network [OSTI]

    EXTREME WAVE RUN-UP ON A VERTICAL CLIFF FRANCESCO CARBONE, DENYS DUTYKH , JOHN M. DUDLEY, AND FR´ED´ERIC DIAS Abstract. Wave impact and run-up onto vertical obstacles are among the most impor- tant phenomena which must be taken into account in the design of coastal structures. From linear wave theory, we know

  13. CLIPPER: Counter-based Low Impact Processor Power Estimation at Run-time

    E-Print Network [OSTI]

    New South Wales, University of

    is dif- ficult as measurement systems for power and energy usage draw too much power themselves, making Parameswaran School of Computer Science and Engineering, National ICT Australia The University of New South the knowledge of processor power/energy consumption at run- time. So far, no efficient method to provide run

  14. Proactive Service Migration for Long-Running Byzantine Fault Tolerant Systems Wenbing Zhao and Honglei Zhang

    E-Print Network [OSTI]

    Zhao, Wenbing

    Proactive Service Migration for Long-Running Byzantine Fault Tolerant Systems Wenbing Zhao scheme based on service migration for long-running Byzantine fault tolerant systems. Proactive recovery threats from malicious adversaries. The primary benefit of our proactive recovery scheme is a reduced

  15. Run-time Modification of the Class Hierarchy in a Live Java Development Environment

    E-Print Network [OSTI]

    Goldman, Kenneth J.

    1 Run-time Modification of the Class Hierarchy in a Live Java Development Environment Joel R. Louis {jbrandt, kjg}@wustl.edu Abstract Class hierarchy design is central to object-oriented software work on live development environments to allow run-time modification of the class hierarchy. The result

  16. Patterns of Brain Activity Associated With Variation in Voluntary Wheel-Running Behavior

    E-Print Network [OSTI]

    Saltzman, Wendy

    Patterns of Brain Activity Associated With Variation in Voluntary Wheel- Running Behavior Justin S variation within and between species is unknown. This study used Fos immunoreactivity to compare brain, and striatum. Results implicate specific brain regions in motivation to run and others in control

  17. Keller's model Variable energy recreation Bounding the derivative of f Optimization of running strategies based on

    E-Print Network [OSTI]

    Boyer, Edmond

    strategies based on anaerobic energy and variations of velocity J. Fr´ed´eric Bonnans Inria-Saclay and CMAP of running strategies hal-01024231,version1-15Jul2014 #12;Keller's model Variable energy recreation Bounding.F. Bonnans, Optimization of running strategies based on anaerobic energy and variations of velocity. SIAM J

  18. Computer optimization of a minimal biped model discovers walking and running

    E-Print Network [OSTI]

    Srinivasan, Manoj

    University, 306 Kimball Hall, Ithaca, New York 14853, USA. doi:10.1038/nature04113 1 © 2005 Nature Publishing walking and running use the least energy1­7 . Addressing this classic1 conjecture with experiments2,3 requires comparing walking and running with many other strange and unpractised gaits. As an alternative

  19. ORNL/TM-2003/259 RUNNING OUT OF AND INTO OIL

    E-Print Network [OSTI]

    ORNL/TM-2003/259 RUNNING OUT OF AND INTO OIL: ANALYZING GLOBAL OIL DEPLETION AND TRANSITION THROUGH Government or any agency thereof. #12;#12;ORNL/TM-2003/259 RUNNING OUT OF AND INTO OIL: ANALYZING GLOBAL OIL ...................................................................................................................1 2. WORLD OIL RESOURCE ESTIMATES

  20. Online Prediction of the Running Time of Tasks: Summary Peter A. Dinda

    E-Print Network [OSTI]

    Dinda, Peter A.

    of the Running Time Advisor (or RTA) system, the broader context of which it is a part, and the queries(16) models. We have implemented an extremely low overhead online host load prediction system, based Load Prediction System Running Time Advisor Real­time Scheduling Advisor Application Measurement Stream

  1. Online Prediction of the Running Time of Tasks: Summary Peter A. Dinda

    E-Print Network [OSTI]

    Dinda, Peter A.

    of the Running Time Advisor (or RTA) system, the broader context of which it is a part, and the queries(16) models. We have implemented an extremely low overhead online host load prediction system, based Prediction System Running Time Advisor Real-time Scheduling Advisor Application Measurement Stream Load

  2. On the distribution of career longevity and the evolution of home-run prowess in professional

    E-Print Network [OSTI]

    Stanley, H. Eugene

    OFFPRINT On the distribution of career longevity and the evolution of home-run prowess of career longevity and the evolution of home-run prowess in professional baseball Alexander M. Petersen era of baseball. We utilize Sean Lahman's Baseball Archive [1], an exhaustive database consisting

  3. Running on water: Three-dimensional force generation by basilisk lizards

    E-Print Network [OSTI]

    Lauder, George V.

    because it readily yields to any applied force. Previous studies have shown that static stability during during water running. Our results give insight into the mechanics of how basilisk lizards run across challenge established rules for the mechanics of legged locomotion. Basiliscus plumifrons hydrodynamics

  4. A System Architecture for Running Big Data Workflows in the Cloud Andrey Kashlev, Shiyong Lu

    E-Print Network [OSTI]

    Lu, Shiyong

    A System Architecture for Running Big Data Workflows in the Cloud Andrey Kashlev, Shiyong Lu management systems (SWFMSs) to utilize the power of Cloud computing to perform big data analyses. Unlike by running a big data workflow in Amazon EC2, FutureGrid Eucalyptus and OpenStack clouds. From

  5. Running Financial Reports For help email Financial.Reports@dartmouth.edu

    E-Print Network [OSTI]

    1 IRA Basic Running Financial Reports For help email Financial.Reports@dartmouth.edu Updated 6-7-2013 #12;2 Training Index Part I Introduction to the IRA Reporting Tool IRA Resources (3) Logging onto the system (4) Navigating the Dashboard (5-9) Running Reports (10-11) Working with Reports (12

  6. Producing Open Source Software How to Run a Successful Free Software

    E-Print Network [OSTI]

    Tesfatsion, Leigh

    Producing Open Source Software How to Run a Successful Free Software Project Karl Fogel #12;Producing Open Source Software: How to Run a Successful Free Software Project by Karl Fogel Copyright © 2005 ............................................................................................................ 11 The Rise of Proprietary Software and Free Software ........................................ 11

  7. Running head: GEOTHERMAL POWER PRODUCTION 1 Geothermal Power Production for Emmonak, Alaska

    E-Print Network [OSTI]

    Scheel, David

    Running head: GEOTHERMAL POWER PRODUCTION 1 Geothermal Power Production for Emmonak, Alaska Anthony Bryant Senior Project Alaska Pacific University May 5, 2010 #12;Running head: GEOTHERMAL POWER PRODUCTION January 2009. This paper researches the possibility of using geothermal energy as an alternative energy

  8. PEFC-Certified Fencing for 2010 Pamplona Bull Run JUL 05 2010 | SPAIN

    E-Print Network [OSTI]

    PEFC-Certified Fencing for 2010 Pamplona Bull Run JUL 05 2010 | SPAIN This year, the fences marking the route of the Bull Run at the world-renowned San Fermin Festival will be made from PEFC-certified timber used for the fence is locally sourced from sustainably-managed, PEFC-certified forests. The pinewood

  9. PROCEEDINGS 1 Late-run Sockeye Salmon in the Fraser River, British Columbia,

    E-Print Network [OSTI]

    Hinch, Scott G.

    PROCEEDINGS · 1 Late-run Sockeye Salmon in the Fraser River, British Columbia, are Experiencing University of Guelph [Note: Figures for Lapointe et al are included at the end of this paper.] Abstract Late-run stocks are unique among Fraser River sockeye salmon populations in that they typically delay in Georgia

  10. Interannual variation of reach specific migratory success for Sacramento River hatchery yearling late-fall run

    E-Print Network [OSTI]

    Klimley, A. Peter

    a multitude of habitats ­ the more natural run-riffle-pool structure of the upper river, a channelized lowerInterannual variation of reach specific migratory success for Sacramento River hatchery yearling late-fall run Chinook salmon (Oncorhynchus tshawytscha) and steelhead trout (Oncorhynchus mykiss

  11. USING RUNNING DIFFERENCE IMAGES TO TRACK PROPER MOTIONS OF XUV CORONAL INTENSITY ON THE SUN

    SciTech Connect (OSTI)

    Sheeley, N. R. Jr.; Warren, H. P.; Lee, J. E-mail: harry.warren@nrl.navy.mil; Chung, S.; Katz, J.; Namkung, M

    2014-12-20

    We have developed a procedure for observing and tracking proper motions of faint XUV coronal intensity on the Sun and have applied this procedure to study the collective motions of cellular plumes and the shorter-period waves in sunspots. Our space/time maps of cellular plumes show a series of tracks with the same 5-8 minute repetition times and ?100 km s{sup –1} sky-plane speeds found previously in active-region fans and in coronal hole plumes. By synchronizing movies and space/time maps, we find that the tracks are produced by elongated ejections from the unipolar flux concentrations at the bases of the cellular plumes and that the phases of these ejections are uncorrelated from cell to cell. Thus, the large-scale motion is not a continuous flow, but is more like a system of independent conveyor belts all moving in the same direction along the magnetic field. In contrast, the proper motions in sunspots are clearly waves resulting from periodic disturbances in the sunspot umbras. The periods are ?2.6 minutes, but the sky-plane speeds and wavelengths depend on the heights of the waves above the sunspot. In the chromosphere, the waves decelerate from 35-45 km s{sup –1} in the umbra to 7-8 km s{sup –1} toward the outer edge of the penumbra, but in the corona, the waves accelerate to ?60-100 km s{sup –1}. Because chromospheric and coronal tracks originate from the same space/time locations, the coronal waves must emerge from the same umbral flashes that produce the chromospheric waves.

  12. Hydrodynamics of phase transition fronts and the speed of sound in the plasma

    E-Print Network [OSTI]

    Leonardo Leitao; Ariel Megevand

    2015-03-06

    The growth of bubbles in cosmological first-order phase transitions involves nontrivial hydrodynamics. For that reason, the study of the propagation of phase transition fronts often requires several approximations. A frequently used approximation consists in describing the two phases as being composed only of radiation and vacuum energy (the so-called bag equation of state). We show that, in realistic models, the speed of sound in the low-temperature phase is generally smaller than that of radiation, and we study the hydrodynamics in such a situation. We find in particular that a new kind of hydrodynamical solution may be possible, which does not arise in the bag model. We obtain analytic results for the efficiency of the transfer of latent heat to bulk motions of the plasma, as a function of the speed of sound in each phase.

  13. Secretary Chu Speaks at the 2010 Washington Auto Show

    SciTech Connect (OSTI)

    Secretary Chu

    2010-02-03

    Secretary Chu lays out a roadmap for how the U.S. can lead the world in making the clean vehicles we need at the 2010 Washington Auto Show. He also announced that the Department of Energy had closed on a $1.4 billion loan to Nissan to build the all-electric LEAF in Tennessee and create up to 1,300 American jobs.

  14. Secretary Chu Speaks at the 2010 Washington Auto Show

    ScienceCinema (OSTI)

    Secretary Chu

    2010-09-01

    Secretary Chu lays out a roadmap for how the U.S. can lead the world in making the clean vehicles we need at the 2010 Washington Auto Show. He also announced that the Department of Energy had closed on a $1.4 billion loan to Nissan to build the all-electric LEAF in Tennessee and create up to 1,300 American jobs.

  15. Interactive Map Shows Geothermal Resources | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCED MANUFACTURING OFFICE INDUSTRIAL TECHNICAL8-02Department ofInversionsInteractive Map Shows

  16. The Performance and Development of the Inner Detector Trigger Algorithms at ATLAS for LHC Run 2

    E-Print Network [OSTI]

    Sowden, Benjamin Charles; The ATLAS collaboration

    2015-01-01

    A description of the design and performance of the newly reimplemented tracking algorithms for the ATLAS trigger for LHC Run 2, to commence in spring 2015, is provided. The ATLAS High Level Trigger (HLT) has been restructured to run as a more flexible single stage process, rather than the two separate Level 2 and Event Filter stages used during Run 1. To make optimal use of this new scenario, a new tracking strategy has been implemented for Run 2 for the HLT. This new strategy will use a Fast Track Finder (FTF) algorithm to directly seed the subsequent Precision Tracking, and will result in improved track parameter resolution and significantly faster execution times than achieved during Run 1 but with no significant reduction in efficiency. The performance and timing of the algorithms for numerous physics signatures in the trigger are presented. The profiling infrastructure, constructed to provide prompt feedback from the optimisation, is described, including the methods used to monitor the relative performan...

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

    DOE Patents [OSTI]

    Borowiec, Joseph Christopher (Schenectady, NY); Cocoma, John Paul (Clifton Park, NY); Roberts, Victor David (Burnt Hills, NY)

    1998-01-01

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

  18. Off-momentum dynamic aperture for lattices in the RHIC heavy ion runs

    SciTech Connect (OSTI)

    Luo Y.; Bai, M.; Blaskiewicz, M.; Gu, X.; Fischer, W.; Marusic, A.; Roser, T.; Tepikian, S.; Zhang, S.

    2012-05-20

    To reduce transverse emittance growth rates from intrabeam scattering in the RHIC heavy ion runs, a lattice with an increased phase advance in the arc FODO cells was adopted in 2008-2011. During these runs, a large beam loss due to limited off-momentum dynamic aperture was observed during longitudinal RF re-bucketing and with transverse cooling. Based on the beam loss observations in the previous ion runs and the calculated off-momentum apertures, we decided to adopt the lattice used before 2008 for the 2012 U-U and Cu-Au runs. The observed beam decay and the measured momentum aperture in the 2012 U-U run are presented.

  19. Intercity Rail Ridership Forecasting and the Implementation of High-Speed Rail in California

    E-Print Network [OSTI]

    Vaca, Erin

    1993-01-01

    Taniguchi, M. 1992. High Speed Rail in Japan: A Review andOperate, Maintain, and Finance a High-Speed Rail Facility.Texas High-Speed Rail Authority, Austin, January. Thompson,

  20. High-Speed Rail in California: A Cost-Benefit Analysis

    E-Print Network [OSTI]

    Kockelman, Kara

    1994-01-01

    1 . Specific Aspects of High-Speed Rail in Connection with A993. The Development Effects of High-Speed Rail Stations and1 989. Texas Triangle High Speed Rail Study. Houston, TX:

  1. The Development Effects of High-Speed Rail Stations and Implications for California

    E-Print Network [OSTI]

    Sands, Brian D.

    1993-01-01

    In The Shinkansen High-Speed Rail Nettt~rk of Japan (the development of high-speed rail facilities, but a loss oflong-term success of a high-speed rail system. REFERENCES

  2. The effect of imbalance distribution and measurement locations on critical speeds in a turboprop engine rotor 

    E-Print Network [OSTI]

    Marin, Manuel

    1996-01-01

    The critical speeds of a turbomachine can be defined as the speeds at which synchronous response to imbalance is maximum (Vance,1988). Identifying the proper placement of critical speeds is very important in the design process of turbomachinery...

  3. On-line implementation of an adaptive speed filter and its experimental demonstration 

    E-Print Network [OSTI]

    Abdul, Anis Mohamed

    2001-01-01

    previously developed neural network speed filter is implemented for on-line induction motor speed estimation. The speed filter is constructed using a combination of five neural networks. A neural networks framework developed in this work is used to construct...

  4. AGR-1 Irradiation Test Final As-Run Report

    SciTech Connect (OSTI)

    Blaise P. Collin

    2012-06-01

    This document presents the as-run analysis of the AGR-1 irradiation experiment. AGR-1 is the first of eight planned irradiations for the Advanced Gas Reactor (AGR) Fuel Development and Qualification Program. Funding for this program is provided by the US Department of Energy (DOE) as part of the Next-Generation Nuclear Plant (NGNP) project. The objectives of the AGR-1 experiment are: 1. To gain experience with multi-capsule test train design, fabrication, and operation with the intent to reduce the probability of capsule or test train failure in subsequent irradiation tests. 2. To irradiate fuel produced in conjunction with the AGR fuel process development effort. 3. To provide data that will support the development of an understanding of the relationship between fuel fabrication processes, fuel product properties, and irradiation performance. In order to achieve the test objectives, the AGR-1 experiment was irradiated in the B-10 position of the Advanced Test Reactor (ATR) at the Idaho National Laboratory (INL) for a total duration of 620 effective full power days of irradiation. Irradiation began on December 24, 2006 and ended on November 6, 2009 spanning 13 ATR cycles and approximately three calendar years. The test contained six independently controlled and monitored capsules. Each capsule contained 12 compacts of a single type, or variant, of the AGR coated fuel. No fuel particles failed during the AGR-1 irradiation. Final burnup values on a per compact basis ranged from 11.5 to 19.6 %FIMA, while fast fluence values ranged from 2.21 to 4.39 ?1025 n/m2 (E >0.18 MeV). We’ll say something here about temperatures once thermal recalc is done. Thermocouples performed well, failing at a lower rate than expected. At the end of the irradiation, nine of the originally-planned 19 TCs were considered functional. Fission product release-to-birth (R/B) ratios were quite low. In most capsules, R/B values at the end of the irradiation were at or below 10-7 with only one capsule significantly exceeding this value. A maximum R/B of around 2?10-7 was reached at the end of the irradiation in Capsule 5. Several shakedown issues were encountered and resolved during the first three cycles. These include the repair of minor gas line leaks; repair of faulty gas line valves; the need to position moisture monitors in regions of low radiation fields for proper functioning; the enforcement of proper on-line data storage and backup, the need to monitor thermocouple performance, correcting for detector spectral gain shift, and a change in the mass flow rate range of the neon flow controllers.

  5. AGR-2 IRRADIATION TEST FINAL AS-RUN REPORT

    SciTech Connect (OSTI)

    Blaise, Collin

    2014-07-01

    This document presents the as-run analysis of the AGR-2 irradiation experiment. AGR-2 is the second of the planned irradiations for the Advanced Gas Reactor (AGR) Fuel Development and Qualification Program. Funding for this program is provided by the U.S. Department of Energy as part of the Very High Temperature Reactor (VHTR) Technical Development Office (TDO) program. The objectives of the AGR-2 experiment are to: (a) Irradiate UCO (uranium oxycarbide) and UO2 (uranium dioxide) fuel produced in a large coater. Fuel attributes are based on results obtained from the AGR-1 test and other project activities. (b) Provide irradiated fuel samples for post-irradiation experiment (PIE) and safety testing. (c) Support the development of an understanding of the relationship between fuel fabrication processes, fuel product properties, and irradiation performance. The primary objective of the test was to irradiate both UCO and UO2 TRISO (tri-structural isotropic) fuel produced from prototypic scale equipment to obtain normal operation and accident condition fuel performance data. The UCO compacts were subjected to a range of burnups and temperatures typical of anticipated prismatic reactor service conditions in three capsules. The test train also includes compacts containing UO2 particles produced independently by the United States, South Africa, and France in three separate capsules. The range of burnups and temperatures in these capsules were typical of anticipated pebble bed reactor service conditions. The results discussed in this report pertain only to U.S. produced fuel. In order to achieve the test objectives, the AGR-2 experiment was irradiated in the B-12 position of the Advanced Test Reactor (ATR) at Idaho National Laboratory (INL) for a total irradiation duration of 559.2 effective full power days (EFPD). Irradiation began on June 22, 2010, and ended on October 16, 2013, spanning 12 ATR power cycles and approximately three and a half calendar years. The test contained six independently controlled and monitored capsules. Each U.S. capsule contained 12 compacts of either UCO or UO2 AGR coated fuel. No fuel particles failed during the AGR-2 irradiation. Final burnup values on a per compact basis ranged from 7.26 to 13.15% FIMA (fissions per initial heavy-metal atom) for UCO fuel, and 9.01 to 10.69% FIMA for UO2 fuel, while fast fluence values ranged from 1.94 to 3.47´1025 n/m2 (E >0.18 MeV) for UCO fuel, and from 3.05 to 3.53´1025 n/m2 (E >0.18 MeV) for UO2 fuel. Time-average volume-average (TAVA) temperatures on a capsule basis at the end of irradiation ranged from 987°C in Capsule 6 to 1296°C in Capsule 2 for UCO, and from 996 to 1062°C in UO2-fueled Capsule 3. By the end of the irradiation, all of the installed thermocouples (TCs) had failed. Fission product release-to-birth (R/B) ratios were quite low. In the UCO capsules, R/B values during the first three cycles were below 10-6 with the exception of the hotter Capsule 2, in which the R/Bs reached 2´10-6. In the UO2 capsule (Capsule 3), the R/B values during the first three cycles were below 10-7. R/B values for all following cycles are not reliable due to gas flow and cross talk issues.

  6. JSON shows incomplete info | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar2-0057-EAInvervar Hydro Jump to: navigation,Jump to:Corp JumpJSON shows

  7. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submit theCovalentLaboratory |Sectorfor $1.14Dynein Motor Domain Shows

  8. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submit theCovalentLaboratory |Sectorfor $1.14Dynein Motor Domain ShowsDynein

  9. Method and system for controlling a rotational speed of a rotor of a turbogenerator

    DOE Patents [OSTI]

    Stahlhut, Ronnie Dean; Vuk, Carl Thomas

    2008-12-30

    A system and method controls a rotational speed of a rotor or shaft of a turbogenerator in accordance with a present voltage level on a direct current bus. A lower threshold and a higher threshold are established for a speed of a rotor or shaft of a turbogenerator. A speed sensor determines speed data or a speed signal for the rotor or shaft associated with a turbogenerator. A voltage regulator adjusts a voltage level associated with a direct current bus within a target voltage range if the speed data or speed signal indicates that the speed is above the higher threshold or below the lower threshold.

  10. Cloud speed impact on solar variability scaling â?? Application to the wavelet variability model

    E-Print Network [OSTI]

    Lave, Matthew; Kleissl, Jan

    2013-01-01

    Kleissl, J. , 2013. Deriving cloud velocity from an array ofCloud Speed Impact on Solar Variability Scaling -this work, we determine from cloud speeds. Cloud simulator

  11. High-speed quantum networking by ship

    E-Print Network [OSTI]

    Simon J. Devitt; Andrew D. Greentree; Ashley M. Stephens; Rodney Van Meter

    2015-12-07

    Quantum communication will improve the security of cryptographic systems and decision-making algorithms, support secure client-server computation, and improve the sensitivity of scientific instruments. As these applications consume quantum entanglement, a method for replenishing networked entanglement is essential. Direct transmission of quantum signals over long distances is prevented by fibre attenuation and the no-cloning theorem. This has motivated the development of quantum repeaters, which are designed to purify entanglement and extend its range. Quantum repeaters have been demonstrated over short distances, but an error-corrected repeater network with sufficient bandwidth over global distances will require new technology. In particular, no proposed hardware appears suitable for deployment along undersea cables, leaving the prospect of isolated metropolitan networks. Here we show that error-corrected quantum memories installed in cargo containers and carried by ship could provide a flexible and scalable connection between local networks, enabling low-latency, high-fidelity quantum communication across global distances. With recent demonstrations of quantum technology with sufficient fidelity to enable topological error correction, implementation of the necessary quantum memories is within reach, and effective bandwidth will increase with improvements in fabrication. Thus, our architecture provides a new approach to quantum networking that avoids many of the technological requirements of undersea quantum repeaters, providing an alternate path to a worldwide Quantum Internet.

  12. Measuring Political Polarization: Twitter shows the two sides of Venezuela

    E-Print Network [OSTI]

    Morales, A J; Losada, J C; Benito, R M

    2015-01-01

    We say that a population is perfectly polarized when divided in two groups of the same size and opposite opinions. In this paper, we propose a methodology to study and measure the emergence of polarization from social interactions. We begin by proposing a model to estimate opinions in which a minority of influential individuals propagate their opinions through a social network. The result of the model is an opinion probability density function. Next, we propose an index to quantify the extent to which the resulting distribution is polarized. Finally, we apply the proposed methodology to a Twitter conversation about the late Venezuelan president, Hugo Ch\\'avez, finding a good agreement between our results and offline data. Hence, we show that our methodology can detect different degrees of polarization, depending on the structure of the network.

  13. RHIC performance for FY2011 Au+Au heavy ion run

    SciTech Connect (OSTI)

    Marr, G.; Ahrens, L.; Bai, M.; Beebe-Wang, J.; Blackler, I.; Blaskiewicz, M.; Brennan, J.M.; Brown, K.A.; Bruno, D.; Butler, J.; Carlson, C.; Connolly, R.; D'Ottavio, T.; Drees, K.A.; Fedotov, A.V.; Fischer, W.; Fu, W.; Gardner, C.J.; Gassner, D.M.; Glenn, J.W.; Gu, X.; Harvey, M.; Hayes, T.; Hoff, L.; Huang, H.; Ingrassia, P.F.; Jamilkowski, J.P.; Kling, N.; Lafky, M.; Laster, J.S.; Liu, C.; Luo, Y.; Mapes, M.; Marusic, A.; Mernick, K.; Michnoff, R.J.; Minty, M.G.; Montag, C.; Morris, J.; Naylor, C.; Nemesure, S.; Polizzo, S.; Ptitsyn, V.; Robert-Demolaize, G.; Roser, T.; Sampson, P.; Sandberg, J.; Schoefer, V.; Schultheiss, C.; Severino, F.; Shrey, T.; Smith, K.; Steski, D.; Tepikian, S.; Thieberger, P.; Trbojevic, D.; Tsoupas, N.; Tuozzolo, J.E.; VanKuik, B.; Wang, G.; Wilinski, M.; Zaltsman, A.; Zeno, K.; Zhang, S.Y.

    2011-09-04

    Following the Fiscal Year (FY) 2010 (Run-10) Relativistic Heavy Ion Collider (RHIC) Au+Au run, RHIC experiment upgrades sought to improve detector capabilities. In turn, accelerator improvements were made to improve the luminosity available to the experiments for this run (Run-11). These improvements included: a redesign of the stochastic cooling systems for improved reliability; a relocation of 'common' RF cavities to alleviate intensity limits due to beam loading; and an improved usage of feedback systems to control orbit, tune and coupling during energy ramps as well as while colliding at top energy. We present an overview of changes to the Collider and review the performance of the collider with respect to instantaneous and integrated luminosity goals. At the conclusion of the FY 2011 polarized proton run, preparations for heavy ion run proceeded on April 18, with Au+Au collisions continuing through June 28. Our standard operations at 100 GeV/nucleon beam energy was bracketed by two shorter periods of collisions at lower energies (9.8 and 13.5 GeV/nucleon), continuing a previously established program of low and medium energy runs. Table 1 summarizes our history of heavy ion operations at RHIC.

  14. High speed, multi-channel, user programmable digital data acquisition system.

    SciTech Connect (OSTI)

    Sabourov, Konstantin; Hennig, Wolfgang; Walby, Mark

    2013-11-18

    As applications for radiation detection become more demanding, and in turn improvements are made in the technology of radiation detection, there is a need for high speed digital detector readout electronics matching these improvements. Specifically, full control over the on-line processing resources of modern digital electronics is desirable so that researchers can develop custom algorithms for special applications.In the proposed effort, the 500 MHz digital readout electronics previously developed by our company will be redesigned to allow user access to the on-line processing resources. In Phase I, the division of online processing into vendor and user firmware sections has been studied on existing hardware. In Phase II, the hardware will be upgraded to better facilitate the division, and the firmware will be restructured into a robust vendor logic block (providing standard functions such as host I/O, on-board memory I/O, energy computation, MCA spectra, timestamps, waveform capture, run statistics, and triggering and timing) and a user logic block for custom algorithms (with templates and examples for frequently used functions). Investigating several options to divide online processing, it was determined that the most promising approach is to “partition” a single FPGA integrated circuit into a vendor and user section, which is supported in newer devices. The analog front end of the existing electronics proved suitable for most applications, in particular high rate measurements with germanium detectors. The design architecture for new electronics was developed, combining one of the new FPGA device with the analog front end.

  15. Di-J/psi Studies, Level 3 Tracking and the D0 Run IIb Upgrade

    SciTech Connect (OSTI)

    Vint, Philip John; /Imperial Coll., London

    2009-10-01

    The D0 detector underwent an upgrade to its silicon vertex detector and triggering systems during the transition from Run IIa to Run IIb to maximize its ability to fully exploit Run II at the Fermilab Tevatron. This thesis describes improvements made to the tracking and vertexing algorithms used by the high level trigger in both Run IIa and Run IIb, as well as a search for resonant di-J/{psi} states using both Run IIa and Run IIb data. Improvements made to the tracking and vertexing algorithms during Run IIa included the optimization of the existing tracking software to reduce overall processing time and the certification and testing of a new software release. Upgrades made to the high level trigger for Run IIb included the development of a new tracking algorithm and the inclusion of the new Layer 0 silicon detector into the existing software. The integration of Layer 0 into the high level trigger has led to an improvement in the overall impact parameter resolution for tracks of {approx}50%. The development of a new parameterization method for finding the error associated to the impact parameter of tracks returned by the high level tracking algorithm, in association with the inclusion of Layer 0, has led to improvements in vertex resolution of {approx}4.5 {micro}m. A previous search in the di-J/{psi} channel revealed a unpredicted resonance at {approx}13.7 GeV/c{sup 2}. A confirmation analysis is presented using 2.8 fb{sup -1} of data and two different approaches to cuts. No significant excess is seen in the di-J/{psi} mass spectrum.

  16. High-speed tapping-mode atomic force microscopy using a Q-controlled regular cantilever acting as the actuator: Proof-of-principle experiments

    SciTech Connect (OSTI)

    Balantekin, M.; Sat?r, S.; Torello, D.; De?ertekin, F. L.

    2014-12-15

    We present the proof-of-principle experiments of a high-speed actuation method to be used in tapping-mode atomic force microscopes (AFM). In this method, we do not employ a piezotube actuator to move the tip or the sample as in conventional AFM systems, but, we utilize a Q-controlled eigenmode of a cantilever to perform the fast actuation. We show that the actuation speed can be increased even with a regular cantilever.

  17. Light Stops and Observation of Supersymmetry at LHC RUN-II

    E-Print Network [OSTI]

    Kaufman, Bryan; Nelson, Brent D; Spisak, Andrew

    2015-01-01

    Light stops consistent with the Higgs boson mass of $\\sim126\\,{\\rm GeV}$ are investigated within the framework of minimal supergravity. It is shown that models with light stops which are also consistent with the thermal relic density constraints require stop coannihilation with the neutralino LSP. The analysis shows that the residual set of parameter points with light stops satisfying both the Higgs mass and the relic density constraints lie within a series of thin strips in the $m_0-m_{1/2}$ plane for different values of $A_0/m_0$. Consequently, this region of minimal supergravity parameter space makes a number of very precise predictions. It is found that light stops of mass down to 400~GeV or lower can exist consistent with all constraints. A signal analysis for this class of models at LHC RUN-II is carried out and the dominant signals for their detection identified. Also computed is the minimum integrated luminosity for $5\\sigma$ discovery of the models analyzed. If supersymmetry is realized in this manne...

  18. Constant power speed range extension of surface mounted PM motors

    DOE Patents [OSTI]

    Lawler, Jack Steward (Knoxville, TN); Bailey, John Milton (Knoxville, TN)

    2001-01-01

    A circuit and method for controlling a rotating machine (11) in the constant horsepower range above base speed uses an inverter (15) having SCR's (T1-T6) connected in series with the primary commutation switches (Q1-Q6) to control turn off of the primary commutation switches and to protect the primary commutation switches from faults. The primary commutation switches (Q1-Q6) are controlled by a controller (14), to fire in advance or after a time when the back emf equals the applied voltage, and then to turn off after a precise dwell time, such that suitable power is developed at speeds up to at least six times base speed.

  19. Explosive Products EOS: Adjustment for detonation speed and energy release

    SciTech Connect (OSTI)

    Menikoff, Ralph

    2014-09-05

    Propagating detonation waves exhibit a curvature effect in which the detonation speed decreases with increasing front curvature. The curvature effect is due to the width of the wave profile. Numerically, the wave profile depends on resolution. With coarse resolution, the wave width is too large and results in a curvature effect that is too large. Consequently, the detonation speed decreases as the cell size is increased. We propose a modification to the products equation of state (EOS) to compensate for the effect of numerical resolution; i.e., to increase the CJ pressure in order that a simulation propagates a detonation wave with a speed that is on average correct. The EOS modification also adjusts the release isentrope to correct the energy release.

  20. Pump suction specific speed: Is it a treacherous friend

    SciTech Connect (OSTI)

    Rayner, R.E.

    1993-05-01

    As pump design has gone from an art to a science, the complexities of fluid dynamics have come into clearer focus, driven by field-application problem solving and advancing technology. The past two decades have seen: (1) verifiable state-of-the-art advances in hydraulic design; (2) much-improved knowledge of causes of pump failure, including those from recirculation; (3) the beginning of further refinement of the new suction-specific-speed guidelines - and interaction with design concepts; (4) differentiation between good and bad designs through empirical data, making use of suction specific speed; (5) and as discussed in this article an understanding that suction specific speed (S) alone is inadequate for establishing the differentiation. Although the S is important in understanding pump performance, look at the broad picture when applying the theory.